JP6854391B1 - Automotive door glass holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the productivity of a door glass to which a glass holder is adhered without lowering the adhesive strength. SOLUTION: A holding portion 11 of a glass holder 1 adhered to a door glass 2 is erected from a bottom plate 13 and two standing walls 14 and 15 arranged opposite to each other from two opposite sides of the bottom plate 13. It is formed in an upward U-shape. On the inner surface of the vertical walls 14 and 15, the glass surface contact portion 16 having a large protrusion height from the inner surface of the vertical walls 14 and 15 and the adhesive layer adjusting protrusion having a smaller protrusion height from the inner surface of the vertical walls 14 and 15. 17 is formed. [Selection diagram] Fig. 5

Description

The present invention relates to an automobile door glass holder that is adhered to an automobile door glass.

The door glass for automobiles (hereinafter referred to as "door glass") is connected to an electric or manual lifting device provided inside the door of the automobile, and is lifted and lowered by operating the lifting device. It has become like. The door glass and the elevating device are connected by connecting the glass drive unit of the elevating device to an automobile door glass holder (hereinafter referred to as "glass holder") fixed to the lower side of the door glass. Will be. The glass holder is fixed to the door glass via an adhesive (see, for example, Patent Document 1).

The conventional glass holder described in Patent Document 1 has a holding portion formed in a U shape having an upward cross-sectional shape, and the inner surfaces of the two vertical walls constituting the holding portion are viewed from the upper side. A plurality of glass surface contact portions extending vertically toward the lower side are formed to face each other. Adhesion of the glass holder to the door glass is performed by inserting the door glass between the two standing walls. When the door glass is inserted between the two standing walls, the tip of the glass surface contact portion comes into contact with the front and back surfaces of the door glass due to the inward elastic force generated on the standing walls, and the glass is placed in a predetermined position on the door glass. The holder is temporarily fixed.

In addition, a predetermined amount of adhesive is injected into the sandwiching portion in advance, and by inserting the door glass between the two standing walls, it is formed between the inner surface of each standing wall and the front and back surfaces of the door glass. The space is filled with adhesive. The door glass to which the glass holder is temporarily fixed is transported to the adhesive curing step, and is subjected to the curing treatment required for the adhesive in the space. As a result, a door glass having a glass holder adhered at a predetermined position can be obtained.

Japanese Unexamined Patent Publication No. 2009-12504

By the way, in the conventional glass holder, a plurality of glass surface contact portions having the same height are projected on the inner surface of the vertical wall, and the tip of the glass surface contact portion is in contact with the front surface and the back surface of the door glass. The height of the protrusion of the glass surface contact portion from the inner surface of the standing wall is the thickness of the adhesive layer formed between the door glass and the glass holder. The thickness of the adhesive layer (more accurately, the amount of adhesive between the door glass and the glass holder) is closely related to the adhesive strength of the glass holder to the door glass, and in order to obtain high adhesive strength, the adhesive is used. It is necessary to increase the thickness of the layer to some extent.

On the other hand, as the thickness of the adhesive layer increases, it takes a long time to cure the adhesive layer, so that the productivity of the door glass provided with the glass holder decreases.

That is, in order to increase the productivity of the door glass provided with the glass holder, it is necessary to cure the adhesive layer as quickly as possible to the extent that the door glass to which the glass holder is attached can be conveyed to the next process at least. is there. However, when a conventional glass holder is used, the thickness of the adhesive layer formed between the glass holder and the door glass is large and constant, so that the adhesive layer can be cured only at a speed specified by the thickness. .. Therefore, there is room for improvement in this respect in order to increase the productivity of the door glass provided with the glass holder.

Therefore, an object of the present invention is to increase the productivity of the door glass provided with the glass holder without lowering the adhesive strength.

In order to solve the above problems, the present invention has a U-shaped sandwiching portion having a U-shaped cross section composed of a bottom plate and two standing walls that are erected from two opposite sides of the bottom plate and arranged to face each other. Then, a plurality of glass surface contact portions having a constant protrusion height from the inner surface are formed on the inner surfaces of the two standing walls, and the glass is formed on the inner surface of at least one of the two standing walls. Adjustment of one or more adhesive layers having a flat portion at the tip, which has a lower protrusion height from the inner surface than the surface contact portion and is arranged parallel to the glass surface abutting on the glass surface contact portion. It is characterized by forming protrusions.

According to this configuration, when the door glass is inserted between the two standing walls, it corresponds to the protruding height of the glass surface contact portion from the inner surface of the standing wall between the inner surface of the standing wall and the front surface or the back surface of the door glass. The first adhesive layer having a large layer thickness and the second having a small layer thickness corresponding to the difference between the protrusion height of the glass surface contact portion from the inner surface of the standing wall and the protruding height of the adhesive layer adjusting protrusion from the inner surface of the standing wall. An adhesive layer and is formed. The second adhesive layer, which has a small layer thickness, has a lower adhesive strength than the first adhesive layer, which has a large layer thickness, but cures early. Therefore, the door glass provided with the glass holder can be conveyed to at least the next step. It can be cured as early as possible, and its productivity can be increased.

Further, when the door glass is inserted between the two standing walls, the space formed between the inner surface of the standing wall and the front surface or the back surface of the door glass is used as the first adhesive layer, and the adhesive layer adjusting protrusion is used. When the space formed between the front end surface and the front surface or the back surface of the door glass is used as the second adhesive layer, the area of the first adhesive layer occupying the standing wall is the second adhesive layer occupying the standing wall. It is characterized in that it is formed larger than the area of the adhesive layer.

According to this configuration, the area of the first adhesive layer occupying the standing wall is larger than the area of the second adhesive layer occupying the standing wall, so that high adhesive strength is obtained after the adhesive in each adhesive layer is completely cured. can get. Further, since the area of the second adhesive layer occupying the standing wall is smaller than the area of the first adhesive layer occupying the standing wall, the adhesive in the second adhesive layer can be cured at an early stage, and a glass holder is provided. The door glass can be cured at least early enough to be transported to the next process.

Further, the glass surface contact portion and the adhesive layer adjusting protrusion are formed at symmetrical positions via a door glass inserted between the two standing walls.

According to this configuration, since the adhesive layer having the same shape is formed at the opposite positions of the front surface side and the back surface side of the door glass, the adhesive strength between the front surface side and the back surface side of the door glass can be made uniform, and the adhesive strength with respect to the door glass can be made uniform. The glass holder can be adhered stably.

Further, the glass surface contact portion and the adhesive layer adjusting protrusion are formed at positions symmetrical with respect to the width direction of the standing wall.

According to this configuration, since the adhesive strength in the width direction of the standing wall can be made uniform, the glass holder can be stably adhered to the door glass.

Further, the glass surface contact portion is formed vertically from the upper side to the lower side of the two standing walls, and the adhesive layer adjusting protrusion is formed in contact with the glass surface contact portion. The glass surface contact portion is formed at equal intervals between the side end portions of the two standing walls and the intermediate portion thereof, and the inside of the glass surface contact portion formed on the side end portions of the two standing walls. The adhesive layer adjusting protrusion is formed in contact with both sides of the glass surface contact portion formed in the intermediate portion between the two vertical walls.

According to this configuration, since the glass surface contact portion and the adhesive layer adjusting protrusion are formed in the same direction, molding of the glass holder by injection molding or the like can be easily performed. Further, according to this configuration, since the adhesive layer adjusting protrusion is formed in contact with the glass surface contact portion, the second adhesive layer is formed by contacting the glass surface contact portion with the front surface and the back surface of the door glass. It is easy to strictly regulate the layer thickness of the second adhesive layer, and it is easy to stabilize the curing rate of the second adhesive layer. Further, according to this configuration, since the glass surface contact portion and the adhesive layer adjusting protrusion are arranged at positions symmetrical with respect to the width direction of the standing wall, the adhesive strength in the width direction of the standing wall can be made uniform, and the glass holder with respect to the door glass can be made uniform. Adhesion can be performed stably.

According to the present invention, the assembly efficiency of the door glass and the glass holder can be improved.

It is an exploded perspective view which shows the connection structure of a door glass and an elevating device via a glass holder which concerns on embodiment. It is sectional drawing of the main part which shows the adhesive structure of the glass holder which concerns on embodiment with respect to a door glass. It is a top view of the glass holder which concerns on embodiment. It is a partially enlarged view of FIG. It is sectional drawing which shows the inner surface shape of the glass holder which concerns on embodiment. It is a side view of the glass holder which concerns on embodiment. It is sectional drawing which shows the inner surface shape of the glass holder which concerns on other embodiment. It is sectional drawing which shows the inner surface shape of the glass holder which concerns on still another Embodiment.

In order to facilitate the understanding of the present invention, prior to the description of the glass holder according to the embodiment, the connection structure between the door glass and the elevating device using the glass holder according to the embodiment will be described.

As shown in FIG. 1, the glass holder 1 is attached to the lower side portion of the door glass 2 and is connected to the elevating device 3 via the connecting member 4. As shown in FIG. 2, the glass holder 1 is fixed to the door glass 2 via the adhesive 20. When the glass holder 1 is fixed to the door glass 2 via the adhesive 20 in this way, it penetrates the door glass 2 unlike the case where the glass holder 1 is fixed to the door glass 2 using a mechanical element such as a connecting pin. Since it is not necessary to perform processing such as opening a hole, the work of fixing the glass holder 1 to the door glass 2 can be facilitated, and the cost of the automobile door and the automobile can be reduced. The adhesive 20 is preferably a moisture-curable adhesive because it is often used for assembling automobiles, but the adhesive is not limited to this.

The elevating device 3 shown in FIG. 1 includes a swivel portion whose tip portion swivels in the direction of arrow A or the direction of arrow B around a rotation center (not shown). When the elevating device 3 is swiveled in the direction of arrow A, the glass holder 1 and the door glass 2 are raised in the direction of arrow C. Further, when the elevating device 3 is swiveled in the direction of arrow B, the glass holder 1 and the door glass 2 descend in the direction of arrow D.

At the tip of the swivel portion, a through hole 3a having substantially the same diameter as the through hole 12a formed in the connecting portion 12 of the glass holder 1 is provided. Further, as shown in FIG. 1, the connecting member 4 according to the embodiment is screwed into a single bolt 4a having a diameter capable of penetrating the through hole 3a and the through hole 12a and a screw portion of the bolt 4a. It is composed of two nuts 4b. The glass holder 1 and the elevating device 3 are rotatably connected by screwing a nut 4b into a threaded portion of a bolt 4a penetrating through a through hole 3a and a through hole 12a.

Hereinafter, the glass holder according to the embodiment will be described. It should be noted that the scope of the present invention is not limited to the scope of the embodiments described below, and it goes without saying that the scope of the present invention includes those implemented with various design changes within a range not contrary to the gist of the present invention. is there.

As shown in FIGS. 1, 5, and 6, the glass holder 1 of this example is mainly composed of a holding portion 11 and a connecting portion 12, and is integrally molded using a plastic material. As a molding method of the glass holder 1, for example, an injection molding method can be used.

The plastic material for molding the glass holder 1 may have an appropriate strength and is not particularly limited. However, it has high strength, excellent wear resistance, and good moldability. It is particularly preferable to use engineering plastics such as polybutylene terephthalate (PBT) and acrylic butadiene styrene (ABS).

As shown in FIGS. 3 and 6, the sandwiching portion 11 has a bottom plate 13 and two standing walls 14 and 15 that are erected from two opposite sides of the bottom plate 13 and are arranged to face each other, and the side surface shape is upward. It is formed in a U shape. As shown in FIG. 6, the two standing walls 14 and 15 arranged to face each other are inclined inward so that the distance between them becomes narrower from the lower side (bottom plate 13 side) to the upper side. As a result, in the glass holder 1 of this example, when the door glass 2 is inserted between the standing walls 14 and 15, the upper side of the standing walls 14 and 15 is elastically deformed outward, and the elastic force temporarily deforms the door glass 2 into the door glass 2. It is fixed. The larger the amount d of the upper side with respect to the lower side, the more the temporary fixing force of the glass holder 1 to the door glass 2 can be increased, but the ease of attaching the glass holder 1 to the door glass 2 deteriorates. Is decided.

The connecting portion 12 is integrally formed with the lower surface of the bottom plate 13, and a through hole 12a for connecting the elevating device 3 is provided at a substantially central portion thereof.

As shown in FIG. 5, a plurality of glass surface contact portions 16 extending vertically from the upper side to the lower side of each of the standing walls 14 and 15 are formed on the inner surfaces of the standing walls 14 and 15 so as to face each other. In the example of FIG. 5, the four glass surface contact portions 16 are formed symmetrically with the side end portions of the vertical walls 14 and 15 and the intermediate portion thereof. Further, an adhesive layer adjusting protrusion 17 is formed at a position where the inner surfaces of the vertical walls 14 and 15 come into contact with each glass surface contact portion 16. Further, below the side ends of the standing walls 14 and 15, a glass end contact portion 18 connected to the lower end portion of the two glass surface contact portions 16 arranged opposite to each other is formed (see FIG. 6).

As shown enlarged in FIG. 4, the protrusion height h of the adhesive layer adjusting protrusion 17 from the inner surfaces of the standing walls 14 and 15 is the protrusion height H of the glass surface contact portion 16 from the inner surfaces of the standing walls 14 and 15. Is smaller than The protruding height H of the glass surface contact portion 16 and the protruding height h of the adhesive layer adjusting protrusion 17 from the inner surfaces of the vertical walls 14 and 15 are determined in consideration of the adhesive strength and the adhesive speed of the glass holder 1 with respect to the door glass 2. It is determined.

Further, the width S1 of the glass surface contact portion 16 and the width S2 of the adhesive layer adjusting protrusion 17 are formed to be remarkably smaller than the total width S of the vertical walls 14 and 15, and occupy the total width S of the vertical walls 14 and 15. The total (S1 + S2) / S of the width S1 of the glass surface contact portion 16 and the width S2 of the adhesive layer adjusting protrusion 17 is adjusted to about 1/4 to 1/3. The total width S of the standing walls 14 and 15, the width S1 of the glass surface contact portion 16 and the width S2 of the adhesive layer adjusting protrusion 17 are also determined in consideration of the adhesive strength and the adhesive speed of the glass holder 1 with respect to the door glass 2. ..

That is, in the glass holder 1 of this example, when the door glass 2 is inserted between the two standing walls 14 and 15, and the tip end portion of the glass surface contact portion 16 is in contact with the front surface and the back surface of the door glass 2. A first adhesive having a large layer thickness corresponding to the protruding height H of the glass surface contact portion 16 from the inner surface of the standing walls 14 and 15 is between the inner surface of each of the standing walls 14 and 15 and the front surface or the back surface of the door glass 2. Corresponds to the difference between the protrusion height H of the glass surface contact portion 16 from the inner surfaces of the agent layers 21 and the standing walls 14 and 15 and the protrusion height h of the adhesive layer adjusting protrusion 17 from the inner surfaces of the standing walls 14 and 15. A second adhesive layer 22 having a small layer thickness is formed. In the first adhesive layer 21 having a large layer thickness, since the amount of adhesive filled in the layer is large, a large adhesive strength is generated after curing, but the large amount of adhesive makes it longer to cure the adhesive. It takes time. On the contrary, in the second adhesive layer 22 having a small layer thickness, the adhesive can be cured quickly, but the adhesive strength is lowered.

In a general automobile, the adhesive strength of the glass holder 1 to the door glass 2 is required to be 7,000 N or more. Further, one hour after inserting the door glass 2 between the vertical walls 14 and 15, it is required that an adhesive strength of about 1000 N is generated. The protruding height H of the glass surface contact portion 16, the protruding height h of the adhesive layer adjusting protrusion 17, the total width S of the vertical walls 14 and 15, the width S1 of the glass surface contact portion 16 and the width of the adhesive layer adjusting protrusion 17. S2 is appropriately determined in consideration of these factors.

In the glass holder 1 of this example, the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are provided on the inner surfaces of the vertical walls 14 and 15, and the first adhesive layer 21 and the adhesive 20 having a large filling amount of the adhesive 20 are provided. Since the second adhesive layer 22 having a small filling amount was formed, a large adhesive strength was obtained after the first adhesive layer 21 and the second adhesive layer 22 were cured, and the second adhesive layer 22 was cured at an early stage. Therefore, one hour after inserting the door glass 2 between the vertical walls 14 and 15, an adhesive strength of about 1000 N can be generated between the glass holder 1 and the door glass 2. Therefore, the glass holder 1 of this example can convey the door glass 2 to which the glass holder 1 is attached to the next process one hour after the door glass 2 is inserted between the vertical walls 14 and 15. And its productivity can be increased.

Further, in the glass holder 1 of this example, since the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are formed at opposite positions of the two standing walls 14 and 15, the front surface side and the back surface side of the door glass 2 face each other. At the position, an adhesive layer 21.22 having the same shape is formed, the adhesive strength on the front surface side and the back surface side of the door glass 2 can be made uniform, and the glass holder 1 can be stably adhered to the door glass 2. ..

Further, in the glass holder 1 of this example, since the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are formed at positions symmetrical with respect to the width direction of the standing walls 14 and 15, the adhesive strength in the width direction of the standing walls 14 and 15 is formed. From this point as well, the glass holder 1 can be stably adhered to the door glass 2.

Further, in the glass holder 1 of this example, since the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are formed in the same direction, the structure of the molding die can be simplified, and the glass holder 1 can be formed. It can be manufactured easily and inexpensively. Further, since the glass holder 1 of this example is formed at a position where the adhesive layer adjusting protrusion 17 is in contact with the glass surface contact portion 16, even if the glass holder 1 has some deformation or molding error, the glass surface is formed. By abutting the abutting portion 16 on the front surface and the back surface of the door glass 2, the layer thickness of the second adhesive layer 22 can be strictly regulated, and the curing speed of the second adhesive layer 22 can be stabilized. Further, in the glass holder 1 of this example, since the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are arranged at positions symmetrical with respect to the width direction of the standing walls 14 and 15, the adhesive strength in the width direction of the standing walls 14 and 15 Can be made uniform, and the adhesion of the glass holder 1 to the door glass 2 can be stabilized.

The gist of the present invention is that the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are projected and formed on the inner surfaces of the vertical walls 14 and 15, and the glass surface contact portion 16 and the adhesive layer adjustment are formed. The arrangement of the protrusions 17 is not limited to the above embodiment.

FIG. 7 shows a first example of another embodiment, characterized in that the adhesive layer adjusting protrusion 17 is formed in an intermediate portion of two adjacent glass surface contact portions 16. To do. Even with such a configuration, the same effect as that of the glass holder described in the above embodiment can be exhibited.

FIG. 8 shows a second example of another embodiment, in which the adhesive layer adjusting protrusion 17 is formed adjacently to the glass surface contact portion 16 in the middle portion of the two glass surface contact portions 16. It is characterized in that it is formed in a direction orthogonal to 16. Even with such a configuration, the same effect as that of the glass holder described in the above embodiment can be exhibited. Since the protruding height h of the adhesive layer adjusting protrusion 17 from the inner surfaces of the vertical walls 14 and 15 is relatively small, it can be manufactured by using a molding die having a simple structure, and the manufacturing cost does not increase. ..

In addition, in each of the above-described embodiments, the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 are formed at positions symmetrical with respect to the width direction of the vertical walls 14 and 15, but the gist of the present invention is limited thereto. Instead, the glass surface contact portion 16 and the adhesive layer adjusting protrusion 17 can be formed at positions asymmetrical with respect to the width direction of the standing walls 14 and 15.

Further, in each of the above-described embodiments, the adhesive layer adjusting protrusion 17 is formed in the same direction as the glass surface contact portion 16 or in a direction orthogonal to the glass surface contact portion 16, but the gist of the present invention is not limited to this, and the vertical wall 14 is not limited to this. , An adhesive layer adjusting protrusion 17 in the same direction as the glass surface contact portion 16 and an adhesive layer adjusting protrusion 17 in the direction orthogonal to the glass surface contact portion 16 can also be formed on the inner surface of the glass surface contact portion 16.

Further, in each of the above-described embodiments, a plurality of adhesive layer adjusting protrusions 17 are formed on the inner surfaces of one standing wall 14, 15, but the gist of the present invention is not limited to this, and one standing wall 14, It suffices to form at least one adhesive layer adjusting protrusion 17 on the inner surface of 15.

Further, in each of the above-described embodiments, the adhesive layer adjusting protrusions 17 are formed on the inner surfaces of the two standing walls 14, 15, respectively, but the gist of the present invention is not limited to this, and the two standing walls 14, 15 are not limited thereto. It is also possible to form the adhesive layer adjusting protrusion 17 on only one of them.

1 ... Automotive door glass holder (glass holder), 2 ... Automotive door glass (door glass), 3 ... Elevating device, 3a ... Through hole, 4 ... Connecting member, 4a ... Bolt, 4b ... Nut, 11 ... Holding part , 12 ... Connecting part, 12a ... Through hole, 13 ... Bottom plate, 14, 15 ... Standing wall, 16 ... Glass surface contact part, 17 ... Adhesive layer adjusting protrusion, 18 ... Glass end contact part, 20 ... Adhesive

Claims (5)

It has a U-shaped sandwiching portion having a U-shaped cross section composed of a bottom plate and two standing walls that are erected from two opposite sides of the bottom plate and arranged to face each other.
A plurality of glass surface contact portions having a constant protrusion height from the inner surface are formed on the inner surfaces of the two standing walls, and the glass surface contact is formed on the inner surface of at least one of the two standing walls. One or more adhesive layer adjusting protrusions having a flat portion at the tip, which has a lower protrusion height from the inner surface than the contact portion and is arranged parallel to the glass surface abutting on the glass surface contact portion. An automobile door glass holder characterized by being formed. The space formed between the inner surface of the standing wall and the front surface or the back surface of the door glass when the door glass is inserted between the two standing walls is used as the first adhesive layer, and the tip of the adhesive layer adjusting protrusion is used. When the space formed between the surface and the front surface or the back surface of the door glass is used as the second adhesive layer, the area of the first adhesive layer occupying the standing wall is the area of the second adhesive occupying the standing wall. The automobile door glass holder according to claim 1, wherein the glass holder is formed larger than the area of the layer. The automobile according to claim 1, wherein the glass surface contact portion and the adhesive layer adjusting protrusion are formed at symmetrical positions via a door glass inserted between the two standing walls. For door glass holder. The automobile door glass holder according to claim 1, wherein the glass surface contact portion and the adhesive layer adjusting protrusion are formed at positions symmetrical with respect to the width direction of the standing wall. The glass surface contact portion is formed vertically from the upper side side to the lower side side of the two standing walls, and the adhesive layer adjusting protrusion is formed in contact with the glass surface contact portion. The surface contact portions are formed at equal intervals between the side end portions of the two standing walls and the intermediate portion thereof, and the inside of the glass surface contact portions formed on the side end portions of the two standing walls and the inside of the glass surface contact portions. The automobile door glass according to claim 1, wherein the adhesive layer adjusting protrusion is formed in contact with both sides of the glass surface contact portion formed in the intermediate portion between the two standing walls. holder.

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