JP7398782B2 - folding telescope - Google Patents

Description

TECHNICAL FIELD The present invention relates to a folding telescope that can be transformed into a flat state when folded and a cylindrical state when unfolded.

As shown in Fig. 1, the foldable telescope is equipped with an objective lens b (convex lens) and an eyepiece lens on the side of a megaphone body a shaped like a wide tube to amplify voices during sports cheering, speeches, meetings, etc. A telescope-equipped megaphone d is known in which a telescope-equipped megaphone d is provided with a concave lens c (concave lens) and a telescope that can be raised and tilted (refer to Patent Document 1).

According to this megaphone d with a telescope, the objective lens b and the eyepiece c are tilted 90 degrees as shown by the arrow e in FIG. It can be used appropriately as a megaphone, and on the other hand, by raising the objective lens b and eyepiece c, it can also be used as a telescope when watching sports, etc.

In addition, as shown in FIG. 2, the foldable opera glasses f have a front part h to which an objective lens g is attached, a rear part i to which an eyepiece (not shown) is attached, a front part h and a rear part to which an eyepiece (not shown) is attached. It has a top surface part j, a bottom surface part k, a left side surface part l, and a right side surface part m that connect with the surface part i, the top surface part j and the bottom surface part k have a mountain fold line n, and the left surface part l and right side surface part m have a valley fold line o. A device having the following is known (see Patent Document 2).

According to this foldable opera glass f, from the unfolded state as shown in FIG. 2(a), the top surface part j and the bottom surface part k are folded along the mountain fold line n as shown in FIG. 2(b), and By folding the valley fold line o of the left side part l and the right side part m, the overall shape is folded into a bellows shape in the optical axis direction of the objective lens g and the eyepiece lens, as shown in FIG. 2(c). becomes.

Utility model registration No. 3168553 Utility model registration No. 3216757

By the way, in the telescope-equipped megaphone d shown in FIG. 1, the objective lens b and the eyepiece c stand up and tilt independently, so when using it as a telescope, it is necessary to stand up the objective lens b and the eyepiece c separately. , it is not possible to enter the telescope state with one touch. In addition, if the upright objective lens b and eyepiece c are not parallel to each other and their optical axes are aligned, the object will appear blurred, so in order to see it clearly, it is necessary to must be made parallel to each other with high precision, but since objective lens b and eyepiece c do not work together, fine adjustment is required to make the raised objective lens b and eyepiece c parallel, making the work complicated. It is.

On the other hand, when folding opera glasses f shown in FIG. 2 are transformed from the folded state shown in FIG. 2(c) to the unfolded state shown in FIG. 2(a), the objective lens g attached to the front part h and the back Although the eyepiece lens (not shown) attached to the surface part i moves in conjunction with each other, the objective lens g and the eyepiece lens are not linked together by a parallel link mechanism, so the objective lens g is in the unfolded state. It is difficult to make the eyepiece and the eyepiece parallel to each other with high precision, and the object may appear blurred. In addition, when the folded state shown in FIG. 2(c) is used, the front part h and the rear part i overlap, and the objective lens g and the eyepiece lens arranged on the optical axis overlap, so it is stored in the folded state. During transportation, the objective lens g and the eyepiece lens may rub against each other due to vibrations, etc., and both lenses may be damaged.

The object of the present invention, which was created in consideration of the above circumstances, is to provide a folding telescope that can be transformed from a folded, unused state to an unfolded and used state. The objective lens can be erected in conjunction with a single touch, and the eyepiece and objective lens can be accurately parallel to each other with high precision when erected, and the eyepiece and objective lens will not be scratched when folded and not in use. The purpose of the present invention is to provide a foldable telescope that can prevent sticking.

According to the present invention, which was created to achieve the above-mentioned object, there is provided a lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction; a first link member attached to the eyepiece side of the lens barrel so as to be able to stand up and tilt freely through the lens barrel; an eyepiece lens attached to the inner part of the lens barrel of the first link member; A second link member attached to the objective side of the lens barrel so as to be able to stand up and tilt freely through the lens barrel, an objective lens attached to the inner part of the lens barrel of the second link member, and a first link member. and a third link member connected to the outer part of the lens barrel and the outer part of the lens barrel of the second link member and forming a parallel link mechanism together with the first link member and the second link member. It is in use when it is unfolded into a cylindrical shape and both the first link material and the second link material are in an upright position with respect to the lens barrel, and the first link material and the second link material are both along the lens barrel. When the lens barrel is in the posture and folded into a flat plate shape, it is in an unused state, and in the used state, when the first link member and the second link member are in an upright position with respect to the lens barrel, the first link member and A holding part is provided for holding the second link member in a position perpendicular to the lens barrel, and the holding part is formed in a portion inside the lens barrel of at least one of the first link member and the second link member. and a concave portion formed on the inner surface of the lens barrel, and when the first link member and the second link member are in a perpendicular posture to the lens barrel developed into a cylindrical shape, the convex portion is formed. A folding telescope characterized in that the convex part engages with the concave part and separates from the concave part when the first link member and the second link member are placed in a posture along the lens barrel expanded into a cylindrical shape. is provided.

Further, according to the present invention, there is provided a lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction, and a lens barrel on the eyepiece side of the lens barrel. a first link member attached to the lens barrel so as to be able to stand up and tilt freely; an eyepiece lens attached to the inner part of the lens barrel of the first link member; a second link member attached to the lens barrel so as to be able to stand up and tilt freely; an objective lens attached to the inner part of the lens barrel of the second link member; and a part of the first link member outside the lens barrel. and a third link member that is connected to the outer part of the lens barrel of the second link member and constitutes a parallel link mechanism together with the first link member and the second link member, and the lens barrel is expanded into a cylindrical shape and the third link member is connected to the outer part of the lens barrel. When the first link material and the second link material are both in an upright position with respect to the lens barrel, the state is in use, and when the first link material and the second link material are both in a position along the lens barrel, the lens barrel is in a flat plate shape. When the first link material and the second link material are in an upright position with respect to the lens barrel in the used state, the first link material and the second link material are placed in the lens barrel. A holding part is provided for holding the lens in a vertical position, and the holding part is formed of an edge of an inner part of the lens barrel of at least one of the first link material and the second link material, and When the second link material is placed in a position perpendicular to the lens barrel developed into a cylindrical shape, at least a portion of the edge is pressed against the inner surface of the lens barrel, and the first link material and the second link material are shaped into a cylindrical shape. Provided is a folding telescope characterized in that an edge of the telescope separates from the inner surface of the lens barrel when the telescope is placed in a posture along the lens barrel that is unfolded .

Further, according to the present invention, there is provided a lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction, and a lens barrel on the eyepiece side of the lens barrel. a first link member attached to the lens barrel so as to be able to stand up and tilt freely; an eyepiece lens attached to the inner part of the lens barrel of the first link member; a second link member attached to the lens barrel so as to be able to stand up and tilt freely; an objective lens attached to the inner part of the lens barrel of the second link member; and a part of the first link member outside the lens barrel. and a third link member that is connected to the outer part of the lens barrel of the second link member and constitutes a parallel link mechanism together with the first link member and the second link member, and the lens barrel is expanded into a cylindrical shape and the third link member is connected to the outer part of the lens barrel. When the first link material and the second link material are both in an upright position with respect to the lens barrel, the state is in use, and when the first link material and the second link material are both in a position along the lens barrel, the lens barrel is in a flat plate shape. When the first link material and the second link material are in an upright position with respect to the lens barrel in the used state, the first link material and the second link material are placed in the lens barrel. The holding part is provided with a holding part for holding the lens barrel in a vertical position, the holding part is made of a tip of a folded part obtained by folding the end of the eyepiece side of the lens barrel into the lens barrel, and the first link member has a cylindrical shape. When the lens barrel is unfolded into a vertical position, the inner part of the lens barrel of the first link material comes into contact with the tip of the folded part, and the first link material is aligned with the lens barrel that is unfolded into a cylindrical shape. There is provided a folding telescope characterized in that when the first link member is placed in a vertical position, the inner part of the lens barrel separates from the tip of the folded part .

In the folding telescope according to the present invention, the lens barrel, the first link material, the second link material, and the third link material may be made of paper or resin, and the outer surface of the lens barrel may serve as an advertising space. .

In the folding telescope according to the present invention, when the lens barrel is expanded into a cylindrical shape and the first link member and the second link member are in a posture along the lens barrel, it becomes a megaphone, and the first link member and the second link member It may also be a cheering item in which the material is aligned along the lens barrel and is tapped to produce a clap sound when the lens barrel is folded into a flat plate.

In the folding telescope according to the present invention, the lens barrel is in a large unfolded state in which it is unfolded into a hexagonal tube shape, and in a large unfolded state, and one corner of the hexagonal tube in the large unfolded state is deformed into a square tube shape by folding inward. It can be freely transformed into a medium-expanded state and a folded state in which the rectangular tube in the medium-expanded state is folded into a flat plate shape, and the first link member and the second link member are in a posture along the lens barrel when the lens barrel is in the fully expanded state. When the lens barrel is in the middle expanded state, it becomes a megaphone, and when the lens barrel is in the middle expanded state and the first link material and the second link material are in an upright position with respect to the lens barrel, it becomes a telescope, and when the lens barrel is in the middle expanded state, the first link material is It also serves as a support item to make a clap sound when the second link material is aligned with the lens barrel, and when the lens barrel is folded, the first link material and the second link material are aligned with the lens barrel. It may be in an unused state when it is in the posture.

According to the folding telescope according to the present invention, the following effects can be achieved.
(1) Since the eyepiece and objective lens are tilted and raised in conjunction with each other by a parallel link mechanism, they can be tilted by operating the third link member that constitutes the parallel link mechanism exposed outside the lens barrel. The objective lens and the eyepiece can be easily linked and stood up with a single touch, and the eyepiece and the objective lens can be brought into a parallel state with high precision.
(2) Length of the third link member in which the eyepiece and objective lens form a parallel link mechanism when the lens barrel is not in use, with the first link member and the second link member tilted and the lens barrel folded into a flat plate shape. Since the eyepiece lens and the objective lens are separated from each other by an amount corresponding to , it is possible to avoid a situation where the eyepiece lens and the objective lens overlap, and it is possible to prevent both lenses from rubbing and being damaged when they are folded and not in use.
(3) When the lens barrel is not in use, with the first link member and the second link member tilted and the lens barrel folded into a flat plate, the eyepiece lens and the objective lens are housed inside the folded lens barrel. Therefore, the lens barrel acts as a protective cover, and it is possible to prevent the eyepiece and objective lens from being damaged by external factors when the lens barrel is folded and not in use.

FIG. 2 is a side view of a conventional megaphone with a telescope. It is explanatory drawing of the folding type opera glass which shows another conventional example, (a) is a perspective view which shows an expanded state, (b) is a mid-folding state, and (c) is a folded state, respectively. FIG. 1 is an explanatory diagram showing a folding telescope according to an embodiment of the present invention, and is a perspective view showing a form in which it is used as a telescope. FIG. 4 is a perspective view showing how the folding telescope of FIG. 3 is used as a megaphone. FIG. 4 is a perspective view of the folding telescope of FIG. 3 when it is folded and is in an unused state. FIG. 4 is a developed view of the lens barrel of the folding telescope shown in FIG. 3; (a) is a developed view of the eyepiece holder of the folding telescope in Figure 3, (b) is a developed view of the first link material, second link material, and third link material, and (c) is a developed view of the objective lens holder. This is a developed diagram. It is an explanatory view showing a folding telescope concerning a 2nd embodiment of the present invention, and is a perspective view showing a form used as a megaphone. FIG. 9 is a perspective view showing a form in which the folding telescope of FIG. 8 is used as a cheering item that produces a clap sound when struck. FIG. 9 is a perspective view showing how the folding telescope of FIG. 8 is used as a telescope. FIG. 9 is a perspective view of the folding telescope of FIG. 8 when it is folded and is not in use.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely illustrative to facilitate understanding of the invention, and do not limit the invention unless otherwise specified. In this specification and the drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to omit redundant explanation, and elements not directly related to the present invention are omitted from illustration. do.

(Overview of folding telescope 1)
As shown in FIGS. 3, 4, and 5, the folding telescope 1 according to an embodiment of the present invention is folded into a flat plate with a cylindrical unfolded shape and fold lines 2 along the longitudinal direction. A telescope lens barrel 3 that can be freely deformed in shape, a first link member 4 that is attached to the eyepiece side of the lens barrel 3 so as to be able to stand up and tilt freely, and a lens barrel of the first link member 4. 3, an eyepiece lens 5 attached to the inner part of the lens barrel 3, a second link member 6 attached to the objective side of the lens barrel 3 than the first link member 4 so as to be able to stand up and tilt freely through the lens barrel 3; The objective lens 7 is attached to the inner part of the lens barrel 3 of the second link member 6, the outer part of the lens barrel 3 of the first link member 4, and the outer part of the lens barrel 3 of the second link member 6. A third link member 9 is connected to the third link member 9 and constitutes a parallel link mechanism 8 together with the first link member 4 and the second link member 6.

As shown in FIG. 3, in this folding telescope 1, the lens barrel 3 is expanded into a cylindrical shape, and the first link member 4 and the second link member 6 are both in an upright position with respect to the lens barrel 3. When the first link member 4 and the second link member 6 are in a posture along the lens barrel 3 and the lens barrel 3 is folded into a flat plate shape, the lens becomes in a non-use state as shown in FIG. . Each component of the folding telescope 1 according to this embodiment will be described below.

(lens barrel 3)
As shown in FIGS. 3 to 5, the lens barrel 3 can be freely deformed into a cylindrical unfolded shape and a flat plate-shaped shape with creases 2 along the longitudinal direction. It supports the lens 5 and objective lens 7. The lens barrel 3 extends from the eyepiece 5 side to the objective lens 7 side and is formed to widen toward the end. This is because the lens barrel 3 is used as a megaphone in the state shown in FIG. When not used as a megaphone, the lens barrel 3 may have a straight shape instead of widening at the end. Although the cross-sectional shape of the lens barrel 3 is square in this embodiment, it may be rectangular, hexagonal, triangular, circular, or the like.

FIG. 6 shows a developed view of the lens barrel 3 of this embodiment. The lens barrel 3 has four side parts 3a formed into an elongated trapezoid, which are connected by creases 2 (dotted chain lines), and by mountain-folding each crease 2 at 90 degrees, the lens barrel 3 has a rectangular cross section that widens at the end. It becomes a cylinder. A glue margin 3b is connected to one of the side surfaces 3a at both ends by a folding line 2 along the longitudinal direction. By gluing the inner surface, the four side surfaces 3a become cylindrical (see FIG. 3).

As shown in FIG. 6, folded portions 3c are connected to the end portions of the four side portions 3a on the eyepiece side by creases 10, respectively. By mountain-folding these creases 10 by 180 degrees, each folded part 3c is in a state along the inner surface of the lens barrel 3, as shown in FIG. compartmentalized. The edge of the opening 11 is rounded by the creases 10 of the folded part 3c, so even if the user presses the edge of the opening 11 against the eye area when using it as a telescope, the area around the eye will not be affected. It can prevent you from getting hurt.

As shown in FIG. 6, one of the side surfaces 3a has a first hole 12 shaped like an elongated slit formed on the eyepiece side, and a second hole 13 shaped like an elongated slit formed closer to the object side than the first hole 12. has been done. As shown in FIG. 3, the distance between the first hole 12 and the second hole 13 is adjusted to the length of the third link material 9, and the first link material 4 is passed through the first hole 12. The second link member 6 is passed through the second hole 13 and is attached so as to be tiltable.

(First link material 4)
FIG. 7(b) shows a developed view of the first link material 4, the second link material 6, and the third link material 9. The first link material 4 has a pair of plates 15 connected by a crease 14, and has a double plate in which the creases 14 are mountain-folded 180 degrees and the plates 15 are bonded together. The first link member 4 includes a narrow portion 15a that is inserted into the lens barrel 3 when inserted into the first hole 12 shown in FIG. 6, and a wide portion 15b that is exposed to the outside of the lens barrel 3. The narrow portion 15a is narrower than the slit width of the first hole 12, and the wide portion 15b is wider than the slit width of the first hole 12.

(Second link material 6)
As shown in FIG. 7(b), like the first link material 4, the second link material 6 also has a pair of plates 17 connected by creases 16, and the creases 16 are folded 180 degrees. It has a double plate in which the plate bodies 17 are bonded together. When the second link member 6 is inserted into the second hole 13 shown in FIG. 6, it consists of a narrow part 17a that is inserted into the inside of the lens barrel 3, and a wide part 17b that is exposed to the outside of the lens barrel 3. The narrow portion 17a is narrower than the slit width of the second hole 13, and the wide portion 17b is wider than the slit width of the second hole 13.

(Third link material 9)
As shown in FIG. 7(b), the third link material 9 has creases 18 at one end of the plate body 15 constituting the first link material 4 and one end of the plate body 17 constituting the second link material 6. , 19, and plate bodies 23 and 24 connected by creases 21 and 22, respectively, on two opposing sides of the plate 20, and each crease 21 and 22 is formed into a 180 degree peak. It is composed of a triple plate in which the plate bodies 20, 23, and 24 are folded and bonded together. The third link material 9 is connected to the first link material 4 via a crease 18 and to the second link material 6 via a crease 19.

(Parallel link mechanism 8)
The first link material 4, the second link material 6, and the third link material 9 described above constitute a parallel link mechanism 8, as shown in FIG. A crease 18 connecting the first link material 4 and the third link material 9, a crease 19 connecting the second link material 6 and the third link material 9, contacting the first hole 12 of the first link material 4 The part (the connecting part between the narrow part 15a and the wide part 15b) and the part that contacts the second hole 13 of the second link material 6 (the connecting part between the narrow part 17a and the wide part 17b) are parallel link mechanisms. 8 pivot (rotation axis) (see Figures 3 and 4).

(eyepiece 5)
As shown in FIG. 3, the eyepiece 5 is attached to the inner part of the lens barrel 3 of the first link member 4 via a holder 25 that constitutes a part of the first link member 4. As shown in FIG. FIG. 7(a) shows a developed view of the holder 25 of the eyepiece 5. As shown in FIG. The holder 25 includes a main plate 27 in which a hole 26 for attaching the eyepiece 5 is formed, a sub-plate 29 connected to the side of the main plate 27 by a folding line 28, and a sub-plate 29 connected to the upper side of the main plate 27 by a folding line 30. It has a half plate 31 and a half plate 33 connected to the lower side of the main plate 27 by a crease 32, and each of the creases 28, 30, 32 is mountain-folded 180 degrees to form each plate 27, 29, 31, 33 together. Consists of three layers of boards glued together.

As shown in FIG. 7(a), a hole 34 is formed in the sub-plate 29 similarly to the main plate 27, and semicircular notches 35, 36 are formed in the half-plates 31, 33. When the main plate 27, sub-plate 29, and half-plates 31, 33 are folded along the creases 28, 30, 32 and glued together, the eyepiece 5 (for example, a concave lens) is placed in the holes 26, 34, and the notches 35, 36 using adhesive. Can be installed with. Furthermore, when the plates 27, 29, 31, and 33 are folded along the creases 28, 30, and 32 and bonded together, the narrow portion 15a of the first link material 4 shown in FIG. 7(b) is folded along the creases 14. The first hole 12 shown in FIG. Thereby, as shown in FIG. 3, the holder 25 is accommodated within the lens barrel 3 and interlocks with the first link member 4. Note that the eyepiece lens 5 is made of transparent plastic, glass, or the like.

(Objective lens 7)
As shown in FIG. 3, the objective lens 7 is attached to the inner part of the lens barrel 3 of the second link member 6 via a holder 37 that constitutes a part of the second link member 6. FIG. 7(c) shows a developed view of the holder 37 of the objective lens 7. The holder 37 includes a main plate 39 in which a hole 38 for attaching the objective lens 7 is formed, a sub-plate 41 connected to the side of the main plate 39 by a crease 40, and a sub-plate 41 connected to the upper side of the main plate 39 by a crease 42. It has a half plate 43 and a half plate 45 connected to the lower side of the main plate 39 by a folding line 44, and each plate 39, 41, 43, 45 is folded by folding each folding line 40, 42, 44 180 degrees. Consists of three layers of boards glued together.

As shown in FIG. 7(c), a hole 46 is formed in the sub-plate 41 similarly to the main plate 39, and semicircular notches 47, 48 are formed in the half-plates 43, 45. When the main plate 39, sub-plate 41, and half-plates 43, 45 are folded and glued together at the creases 40, 42, 44, the objective lens 7 (for example, a convex lens) is attached to the holes 38, 46, and the notches 47, 48 using adhesive. Can be installed with. Furthermore, when the plates 39, 41, 43, and 45 are folded along the creases 40, 42, and 44 and bonded, the narrow portion 17a of the second link material 6 shown in FIG. 7(b) is folded along the creases 16. and is inserted into the second hole 13 shown in FIG. Thereby, as shown in FIG. 3, the holder 37 is accommodated within the lens barrel 3 and interlocks with the second link member 6. Note that the objective lens 7 is made of transparent plastic, glass, or the like.

(Holding part 49)
In this folding telescope 1, as shown in FIG. Holding parts 49 and 50 are provided for holding the link member 6 in a position perpendicular to the lens barrel 3. The holding portion 49 is formed on the inner surface of the lens barrel 3 (glue margin 3b) to engage with and disengage from the protrusion 51 formed on the inner part of the lens barrel 3 (holder 25) of the first link member 4. The holding part 50 consists of a convex part 53 formed on the inner part of the lens barrel 3 (holder 37) of the second link member 6, and a convex part 53 formed on the inner part of the lens barrel 3 to engage with and disengage from the convex part 53. It consists of a recess 54 formed on the inner surface (glue allowance 3b).

As shown in FIG. 6, the recesses 52 and 54 are approximately V-shaped notches formed in the glue margin 3b of the lens barrel 3 at intervals in the longitudinal direction (eyepiece objective direction). The position of the notch (recess 52) on the eyepiece side is adjusted so that the distance from the crease 10 is matched to the distance from the first hole 12 and the crease 10, and the position of the notch (recess 54) on the object side is set as follows. The distance from the crease 10 is matched to the distance from the second hole 13 to the crease 10. The spacing between these notches (recesses 52, 54) is adjusted to the length of the third link member 9 constituting the parallel link mechanism 8 (see FIG. 3).

As shown in FIG. 7(a), the convex portion 51 is a protrusion formed on the lower side of the sub-plate 29 of the holder 25 for the eyepiece 5. As shown in FIG. The protruding portion (convex portion 51) protrudes downward from the lower side of the holder 25 when the holder 25 is constructed by folding the main plate 27, the sub-plate 29, and the half plates 31, 33 along the respective creases 28, 30, 32 (Fig. 3), and engages and disengages from the notch (recess 52) in accordance with the upright and tilting of the first link member 4 (see FIG. 4). Similarly, the convex portion 53 is a protrusion formed on the lower side of the sub-plate 41 of the holder 37 for the objective lens 7. The protruding portion (convex portion 53) protrudes downward from the lower side of the holder 37 when the holder 37 is constructed by folding the main plate 39, the sub-plate 41, and the half plates 43, 45 along the respective creases 40, 42, 44 (Fig. 3), the second link member 6 engages and disengages from the notch (recess 54) in accordance with the rising and tilting of the second link member 6 (see FIG. 4).

As shown in FIG. 3, the holding portions 49 and 50 hold the convex portion 51 when the first link member 4 and the second link member 6 are in a vertical posture with respect to the lens barrel 3 expanded into a cylindrical shape. , 53 engage with the recesses 52 and 54, respectively, to maintain the vertical posture of the first link material 4 and the second link material 6, and as shown in FIG. When the lens barrel 3 is expanded into a cylindrical shape, the convex portions 51 and 53 are separated from the concave portions 52 and 54, respectively, and the vertical holding of the first link member 4 and the second link member 6 is released. Ru. Note that the holding parts 49 and 50 may be provided only on either one of the first link material 4 and the second link material 6. This is because the first link member 4 and the second link member 6 are interlocked by the parallel link mechanism 8, so if one of them is made perpendicular, the other becomes also perpendicular.

(Another holding part 55)
Moreover, as shown in FIG. 2. It has another holding part 55 that holds the link member 6 in a position perpendicular to the lens barrel 3. Another holding portion 55 is formed from the tip of a folded portion 3c obtained by folding the end of the eyepiece side of the lens barrel 3 into the lens barrel 3, and as shown in FIG. 3, the first link member 4 is expanded into a cylindrical shape. When the lens barrel 3 is placed in a vertical position, the inner part of the lens barrel 3 (the holder 25 for the eyepiece 5) of the first link member 4 comes into contact with the tip of the folded part 3c, and the first link member 4 When the vertical posture of the link material 4 is maintained and the first link material 4 is placed in a posture along the lens barrel 3 expanded into a cylindrical shape as shown in FIG. 4, the lens barrel 3 of the first link material 4 The inner portion (holder 25 for the eyepiece 5) separates from the tip of the folded portion 3c, and the vertical holding of the first link member 4 is released.

(Yet another holding part)
In addition, the following other holding portions are also conceivable. This holding part consists of an edge of the inner part of the lens barrel 3 (plate-shaped holder 25, 37) of at least one of the first link member 4 and the second link member 6, and as shown in FIG. When the first link member 4 and the second link member 6 are in a position perpendicular to the lens barrel 3 expanded into a cylindrical shape, at least a portion of the edges (for example, side edges) of the holders 25 and 37 are mirrored. The vertical posture of the first link material 4 and the second link material 6 is maintained by being pressed against the inner surface of the cylinder 3, and as shown in FIG. 4, the first link material 4 and the second link material 6 are expanded into a cylindrical shape. When the holders 25 and 37 are placed in a posture along the lens barrel 3, the edges of the holders 25 and 37 are separated from the inner surface of the lens barrel 3, and the vertical holding of the first link member 4 and the second link member 6 is released.

(action/effect)
The folding telescope according to this embodiment can exhibit the following effects.

As shown in FIG. 3, in this folding telescope 1, the lens barrel 3 is expanded into a cylindrical shape, and the first link member 4 and the second link member 6 are both in an upright position with respect to the lens barrel 3. When the lens is in use, the first link member 4 and the second link member 6 are both tilted to a position along the lens barrel 3, as shown in FIG. 4, and the lens barrel 3 is made flat as shown in FIG. Fold it up to put it out of use.

When switching between the use state and the non-use state, as shown in FIGS. 3 and 4, the eyepiece lens 5 and the objective lens 7 are made up of a first link material 4, a second link material 6, and a third link material 9. Since they are tilted and raised in conjunction with the parallel link mechanism 8, by operating the third link member 9 exposed outside the lens barrel 3, the tilted eyepiece lens 5 and objective lens 7 can be easily linked with one touch. The eyepiece lens 5 and the objective lens 7 can be brought into a parallel state with high precision. Therefore, when used as a telescope, the upright eyepiece 5 and objective lens 7 can be accurately parallel to each other and have their optical axes aligned, allowing the object to be seen clearly without blurring. .

As shown in FIG. 5, when the first link member 4 and the second link member 6 are tilted and the lens barrel 3 is folded into a flat plate shape and is not in use, the eyepiece lens 5 and the objective lens 7 are connected by a parallel link mechanism. Since the eyepiece lens 5 and the objective lens 7 are separated from each other by an amount corresponding to the length of the third link member 9 forming the eyepiece lens 8, it is possible to avoid a situation in which the eyepiece lens 5 and the objective lens 7 overlap. Therefore, when a large number of folding telescopes 3 folded into a flat plate shape are stacked and stored or transported when not in use, it is possible to avoid a situation where the eyepiece lens 5 and the objective lens 7 are rubbed against each other and damaged.

As shown in FIG. 5, when the first link member 4 and the second link member 6 are tilted and the lens barrel 3 is folded into a flat plate shape and is not in use, the eyepiece lens 5 and the objective lens 7 are folded. Since the lens barrel 3 is housed inside the lens barrel 3, the lens barrel 3 acts as a protective cover, and can prevent the eyepiece lens 5 and the objective lens 7 from being damaged by external factors when folded and not in use. Therefore, when the folding telescope 1 is folded and stored or transported when not in use, it is possible to prevent the eyepiece lens 5 and the objective lens 7 from being damaged by external injuries.

(Functions of holding parts 49 and 50)
In the usage state shown in FIG. 3, the upright first link member 4 and second link member 6 are held perpendicular to the lens barrel 3 by the holding parts 49 and 50. That is, the protrusion 51 (protrusion) of the first link member 4 that has been erected engages with the recess 52 (notch) in the lens barrel 3, and the protrusion 53 (protrusion) of the second link member 6 engages with the recess 52 (notch) in the lens barrel 3. Since the first link member and the second link member engage with the recess 54 (notch) in the lens barrel 3, the first link member and the second link member are held perpendicular to the lens barrel 3. Thereby, when used as a telescope, the eyepiece lens 5 and the objective lens 7 can be held in a state where they are accurately parallel to each other and their optical axes are precisely aligned, and a clear field of view without distortion can be ensured.

(Megaphone, use as support goods)
Furthermore, in the folding telescope 1 according to the present embodiment, as shown in FIG. When the lens barrel 3 becomes a megaphone, the first link member 4 and the second link member 6 are placed along the lens barrel 3, and the lens barrel 3 is folded into a flat plate shape as shown in FIG. It is a cheering item that can be hit to make a clap sound.

When using the megaphone shown in FIG. 4, the user presses the area around the mouth against the eyepiece-side opening 11 of the lens barrel 3, which is unfolded into a cylindrical shape, to emit sound. At this time, when the user holds the third link member 9 together with the lens barrel 3 so as to press it against the outer surface of the lens barrel 3, the lens barrel of the first link member 4 is 3 (the holder 25 for the eyepiece 5) and the inner part of the lens barrel 3 (the holder 37 for the objective lens 7) of the second link member 6 are held in a posture along the inner surface of the lens barrel 3. Therefore, the holder 25 for the eyepiece 5 and the holder 37 for the objective lens 7 in the housing 3 do not interfere with amplification, and the eyepiece 5 and the objective lens 7 are prevented from becoming dirty with saliva. Since the lens barrel 3 serving as the main body of the megaphone is formed in a widening shape extending from the eyepiece lens 5 side to the objective lens 7 side, it can exhibit superior amplification function compared to a straight-shaped one. Since the opening 11 on the eyepiece side of the lens barrel 3 against which the user presses the area around the mouth is rounded by the folded portion 3c, the area around the user's mouth can be prevented from being damaged.

When using the support goods shown in FIG. 5, the user grasps the eyepiece side of the lens barrel 3 folded into a flat plate shape with one hand and slams the objective side of the lens barrel 3 into the other hand. Then, the inner surfaces of the lens barrel 3 folded into a flat plate collide with each other, producing a so-called clap sound, which is useful for cheering when watching sports.

(Use as an advertising medium)
Furthermore, in the folding telescope 1 according to the present embodiment, the lens barrel 3, the first link material 4, the second link material 6, and the third link material 9 shown in FIGS. 3 to 5 are made of paper or resin. The outer surface of the lens barrel 3 and the outer surface of the third link member 9 serve as an advertising space S. As shown in FIG. 6, on the outer surface of the lens barrel 3, a flat and wide advertisement space S can be secured with four consecutive side surfaces 3a in a developed view, making it easy to print advertisements.

In the advertising space S shown in FIG. 6, advertisements of sponsor companies of sports tournaments such as baseball, soccer, rugby, swimming, etc. are displayed, and the folding telescope 1 shown in FIG. It is possible to distribute it to spectators in an unused state (unused state). Since it is not bulky when folded, a large number of folding telescopes 1 can be stored (stocked) compactly.

(Second embodiment)
8 to 11 show a folding telescope 1a according to a second embodiment of the present invention. The folding telescope 1a according to the second embodiment has the same basic configuration as the folding telescope 1 according to the first embodiment described using FIGS. 3 to 7, except for the configuration of the lens barrel 3. are different. Therefore, the same components as those in the first embodiment will be given the same reference numerals and the explanation will be omitted, and the lens barrel 3 that is different from the first embodiment will be explained.

The lens barrel 3 of the folding telescope 1a according to the second embodiment is in a large unfolded state in which it is unfolded into a hexagonal tube shape, as shown in FIG. 8, and in a large unfolded state, as shown in FIGS. 9 and 10. One corner A of the hexagonal tube is folded inward to transform it into a square tube shape, which is the middle unfolded state, and the middle unfolded square tube is folded into a flat plate shape, which is the folded state, as shown in Fig. 11. It is free.

As shown in FIG. 8, this folding telescope 1a becomes a megaphone when the lens barrel 3 is fully expanded and the first link member 4 and the second link member 6 are in a posture along the lens barrel 3. As shown in FIG. 9, when the lens barrel 3 is in the middle unfolded state and the first link member 4 and the second link member 6 are in a posture along the lens barrel 3, it becomes a cheering item that makes a clap sound when struck. As shown in FIG. 10, when the lens barrel 3 is in the middle unfolded state and the first link member 4 and the second link member 6 are in an upright position with respect to the lens barrel 3, it becomes a telescope, and as shown in FIG. When the tube 3 is in the folded state and the first link member 4 and the second link member 6 are placed in a posture along the lens barrel 3, it is in an unused state.

(Use as a megaphone)
In the developed view of the lens barrel 3 shown in FIG. 8, six side surfaces 3a formed in an elongated trapezoid are connected by creases 2, and by mountain-folding each crease 2 by 120 degrees, It becomes a hexagonal tube with a hexagonal cross section that widens at the end. Gluing margins 3b are connected to the side surfaces 3a at both ends along the longitudinal direction, and by gluing the adhesive margins 3b together, the six side surfaces 3a form a hexagonal cylindrical shape (large unfolded state). In the state shown in FIG. 8, it is used as a megaphone.

(Used as support goods)
By folding one corner (apex A) of the hexagonal tube inward, the lens barrel 3 in the fully expanded state shown in FIG. 8 is deformed into a rectangular tube shape and becomes in the medium expanded state as shown in FIG. At this time, apex A, apex B, apex C, and apex D in FIG. 8 are moved to apex A, apex B, apex C, and apex D in FIG. (large unfolded state) is transformed into a square cylinder (medium unfolded state). In the state shown in FIG. 9, it is used as a cheering item to make a clap sound by hitting it. The user grips the eyepiece side of the rectangular lens barrel 3 with one hand and slams the objective side of the lens barrel 3 into the other hand. Then, the tip of the adhesive portion 3b collides with the inner corner 3d of the lens barrel 3, producing a so-called clap sound. Since the clap sound reverberates inside the rectangular tube-shaped lens barrel 3, a louder sound is generated than in the first embodiment.

(Used as a telescope)
As shown in FIG. 10, the lens barrel 3 is in the middle unfolded state, and the first link member 4 and the second link member 6 are erected with respect to the lens barrel 3 to take a vertical posture. The eyepiece lens 5 and the objective lens 7 are perpendicular to the lens barrel 3 and parallel to each other, forming a telescope. Here, inside the lens barrel 3 in the middle unfolded state, there is a partition in which a part of the lens barrel 3 is folded in to partition it diagonally. The inner part of the lens barrel 3 (holder 25 for the eyepiece 5) and the inner part of the lens barrel 3 of the second link member 6 (holder 37 for the objective lens 7) are formed in a triangular shape (triangular plate). has been done.

(not in use)
The lens barrel 3 in the middle unfolded state shown in FIG. 10 is folded into a flat plate shape as shown in FIG. 11 by crushing the opposing corners (apex E, apex F) of the square barrel closer together. As shown in FIG. 11, the lens barrel 3 is folded along the creases 2, and the first link member 4 and the second link member 6 are placed in a posture along the lens barrel 3, so that the lens barrel 3 is in an unused state. Since it is not bulky when not in use, it can be stored compactly by stacking many folding telescopes.

(action/effect)
The basic functions and effects of the folding telescope 1a according to the second embodiment shown in FIGS. 8 to 11 are the same as those of the first embodiment described using FIGS. 3 to 7, so a description thereof will be omitted. .

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but it goes without saying that the present invention is not limited to the embodiments described above, and various modifications within the scope of the claims can be made. It goes without saying that examples or modifications also fall within the technical scope of the present invention.

INDUSTRIAL APPLICABILITY The present invention can be used in a folding telescope that can be transformed into a flat folded state and a cylindrical unfolded state.

1 Folding telescope 2 Folding line 3 Lens barrel 3c Folded part 4 First link member 5 Eyepiece 6 Second link member 7 Objective lens 8 Parallel link mechanism 9 Third link member 25 Inside of the lens barrel of the first link member Eyepiece holder 37 as a part Objective lens holder 49 as a part inside the lens barrel of the second link material Holding part 50 Holding part 51 Convex part 52 Concave part 53 Convex part 54 Concave part 55 Holding part S Advertising space

Claims (6)

A lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction; a first link material that is freely attached; an eyepiece lens that is attached to an inner part of the lens barrel of the first link material; and a lens barrel that is closer to the object side of the lens barrel than the first link material. a second link member that extends through and is attached to the lens barrel so as to be freely tiltable; an objective lens that is attached to the inner part of the lens barrel of the second link member; and an outer part of the lens barrel of the first link member. and a third link member connected to a portion of the second link member outside the lens barrel and forming a parallel link mechanism together with the first link member and the second link member,
When the lens barrel is expanded into a cylindrical shape and both the first link member and the second link member are in an upright position with respect to the lens barrel, the first link member and the second link are in use. When both members are placed along the lens barrel and the lens barrel is folded into a flat plate, it becomes unused, and in the used state, the first link member and the second link member are aligned with the lens barrel. a holding part is provided for holding the first link member and the second link member in a position perpendicular to the lens barrel when the first link member and the second link member are in an upright position;
The holding portion has a convex portion formed on an inner portion of the lens barrel of at least one of the first link member and the second link member, and a recess formed on an inner surface of the lens barrel, When the first link material and the second link material are placed in a position perpendicular to the lens barrel expanded into a cylindrical shape, the convex portion engages with the recess, and the first link material and the second link material A folding telescope characterized in that the convex portion separates from the concave portion when the two-link member is placed in a posture along the lens barrel expanded into a cylindrical shape . A lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction; a first link material that is freely attached; an eyepiece lens that is attached to an inner part of the lens barrel of the first link material; and a lens barrel that is closer to the object side of the lens barrel than the first link material. a second link member that extends through and is attached to the lens barrel so as to be freely tiltable; an objective lens that is attached to the inner part of the lens barrel of the second link member; and an outer part of the lens barrel of the first link member. and a third link member connected to a portion of the second link member outside the lens barrel and forming a parallel link mechanism together with the first link member and the second link member,
When the lens barrel is expanded into a cylindrical shape and both the first link member and the second link member are in an upright position with respect to the lens barrel, the first link member and the second link are in use. When both members are placed along the lens barrel and the lens barrel is folded into a flat plate, it becomes unused, and in the used state, the first link member and the second link member are aligned with the lens barrel. a holding part is provided for holding the first link member and the second link member in a position perpendicular to the lens barrel when the first link member and the second link member are in an upright position;
The holding portion includes an edge of an inner portion of the lens barrel of at least one of the first link material and the second link material, and the first link material and the second link material are expanded into a cylindrical shape. When the lens barrel is held perpendicular to the lens barrel, at least a portion of the end edge is pressed against the inner surface of the lens barrel, and the first link member and the second link member are expanded into a cylindrical shape. A folding telescope characterized in that the end edge separates from the inner surface of the lens barrel when the telescope is placed in a posture along the lens barrel . A lens barrel for a telescope that can be freely deformed into a cylindrical unfolded shape and a flat shape folded with creases along the longitudinal direction; a first link material that is freely attached; an eyepiece lens that is attached to an inner part of the lens barrel of the first link material; and a lens barrel that is closer to the object side of the lens barrel than the first link material. a second link member that extends through and is attached to the lens barrel so as to be freely tiltable; an objective lens that is attached to the inner part of the lens barrel of the second link member; and an outer part of the lens barrel of the first link member. and a third link member connected to a portion of the second link member outside the lens barrel and forming a parallel link mechanism together with the first link member and the second link member,
When the lens barrel is expanded into a cylindrical shape and both the first link member and the second link member are in an upright position with respect to the lens barrel, the first link member and the second link are in use. When both members are placed along the lens barrel and the lens barrel is folded into a flat plate, it becomes unused, and in the used state, the first link member and the second link member are aligned with the lens barrel. a holding part is provided for holding the first link member and the second link member in a position perpendicular to the lens barrel when the first link member and the second link member are in an upright position;
The holding part is formed of a tip of a folded part obtained by folding the end of the eyepiece side of the lens barrel into the lens barrel, and the first link member is perpendicular to the lens barrel expanded into a cylindrical shape. When in the posture, the inner part of the lens barrel of the first link material abuts the tip of the folded part, and the first link material is in a posture along the lens barrel expanded into a cylindrical shape. The folding telescope is characterized in that, when the first link member is inward of the lens barrel, the portion of the first link member is separated from the tip of the folded portion . Claim characterized in that the lens barrel, the first link material, the second link material, and the third link material are made of paper or resin, and the outer surface of the lens barrel is an advertising space. The folding telescope according to any one of items 1 to 3 . When the lens barrel is expanded into a cylindrical shape and the first link member and the second link member are placed in a posture along the lens barrel, a megaphone is formed, and the first link member and the second link member are connected to the lens barrel. The folding device according to any one of claims 1 to 4 , wherein the lens barrel is held in a posture along the shape of a flat plate and serves as a cheering item for making a clap sound when the lens barrel is folded into a flat plate shape. type telescope. The lens barrel is in a large unfolded state in which it is unfolded into a hexagonal tube shape, in a medium unfolded state in which one corner of the hexagonal tube in the large unfolded state is folded inward and transformed into a square tube shape, and in a square in the middle unfolded state. It can be freely transformed into a folded state in which the cylinder is folded into a flat plate,
When the lens barrel is in a fully expanded state and the first link member and the second link member are in a posture along the lens barrel, a megaphone is formed;
When the lens barrel is in a partially expanded state and the first link member and the second link member are in an upright position with respect to the lens barrel, it becomes a telescope;
When the lens barrel is in a partially expanded state and the first link member and the second link member are in a posture along the lens barrel, it becomes a cheering item for making a clap sound when struck;
Any one of claims 1 to 4 , wherein the first link member and the second link member are in an unused state when the lens barrel is in a folded state and the first link member and the second link member are in a posture along the lens barrel. The folding telescope described in item 1.

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