DE2440932A1 - LEVER ACTUATOR - Google Patents

Description

DipL-lng. W. Dahlia. 26 August 1974

Patent attorneys

506 Refrath near Cologne Frankenforster Strasse 137

TELEFLEX INCORPORATED. . North Wales, Pennsylvania / USA

"Lever Actuator"

The invention relates to a lever actuation device in an embodiment with an actuator which is guided by a housing is movably mounted for manual movement by an operating lever. Usually there is a rod with the actuator or a flexible motion transmission element connected that is moved upon movement of the actuator so that an actuation function is performed at a point indicated by

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away from the lever actuator.

Such lever actuators are in the most diverse Areas used. They are used in boat building, for example small motor boats, around a gear and / or operate a throttle of an outboard motor from a location on the steering wheel that is remote from the engine. These are also used in other vehicles to carry out throttle and gear actuation functions. For example, they are used in large ground moving equipment to operate the gearbox from the driver's seat is arranged away from the location of the transmission.

It is known to have a lever actuator for a specific Vehicle to be designed and manufactured and, consequently, existing lever actuators are only suitable for a single vehicle. The known lever actuators also include numerous specially manufactured components that are relatively expensive to manufacture and assemble.

The invention aims to provide an improved lever actuation device, which is made from a very small number of components and in a wide variety of designs can be mounted and provides a wide variety of characteristics, so that the device in many areas of use or situations can be used. The actuating device

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The measure of the invention thus sets the most varied of features and functions to make them usable for universal use in a wide variety of industrial and vehicle areas close.

The invention is explained in more detail below with reference to the drawings. In the drawings are;

Fig. 1 is a side view of a lever actuation device according to the invention,

FIG. 2 is a view in the direction of view from the plane of line 2-2 of FIG. 1, in which parts are broken away and are shown in section,

3 shows a view in the direction of view from the plane of the line 3-3 in FIG.

Fig. 4 shows a detail of the actuator device according to the invention, '·

5 shows a representation similar to FIG. 4, but with a different fastening of the operating lever is shown on the actuator,

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Pig. Figure 6 is an end view, with parts broken away and in section, of the actuator of the device are shown, but showing biasing means associated with the operating lever cooperate and represent an alternative to the biasing means, which in Fig. 2 shown embodiment are used,

Pig. 7 a detail similar to that shown in Pig. 2,

8 shows a detail similar to the position in FIG. 1, but with different additions are not associated with

Fig. 9 is a detail in section on the line 9-9 of Fig. 1;

Fig. 10 is a detail in section on the line 10-10 of the Pig. 8th,

11 is a plan view of the inside of a housing half and

FIG. 12 is a section taken essentially on line 12-12 of FIG. 11.

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In the drawings, a lever actuator according to the invention is shown at 20 in FIGS. 1-3. The device 20 includes a housing 22 and is adapted for attachment to a support structure. An actuator device 24 is movably supported by the housing 22. An operating lever device, to which the operating lever 26 belongs is attached to the actuator device 24 and extends from this to move the actuator means relative to the housing 22.

A plate-like cover 28 is attached to the top of the housing 22 and has a slot 30. The operating lever 26 extends through the slot 30 and migrates along this slot. As will be explained below, the actuator 24 rotates relative to the housing 22 while it is moved by the operating lever 26. The operating lever 26, which is shown in FIGS. 1 to 4, can swing or be pivoted transversely to the plane of rotation of the actuator 24.

The actuator 24 includes first and second mating Actuator half 32. The actuator halves 32 are identical to one another. For example, if the actuator halves 32 are cast, they can be cast in the same shape or in identical shapes.

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The actuator halves 32 include circular mating portions 34 that are in mating engagement with one another stand to form the actuator 24. Spaced paddles 36 are parallel to one another and extend of the respective mating sections 34. The lower portion of the actuator halves 32 passed through the saddle 36 is formed are each semicircular, so that one end is formed that lies on a circle. The center of the semicircular Lower portions of the actuator halves 32 are centered on the circular mating sections 34. The two actuator halves are connected to one another by screws 38.

The paddles 36 include connecting means passing through holes 40 are formed to enable connection to an actuator such as that shown at 42 is. The actuator 42 is provided for screwing to a rod attached to the end of a flexible motion-transmitting cable or a core is attached to. To transmit motion in a curved path. Usually the cable or the core is movably mounted in a sheath that extends to a point from the Device 20 is remote to perform an actuation function '. The connector 52 is already in detail has been proposed. The actuator or the

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Binding piece 42 includes stub shafts or projections 44 which extend into one of the holes 40 in each of the actuator halves 32. The holes 40 have bottoms in that they are do not extend fully through the flanges 36; however, it should be understood that the holes 40 extend entirely through the Flanges 36 can extend. Furthermore, other actuators, than that shown specifically at 42 can be attached to any of the holes 40. Each hole 40 in a flange 36 points to a corresponding hole in the flange of the other actuator half 32 and is in alignment therewith lie on a circle or semicircle around the periphery of the lower semicircular part of the actuator 24. Depending on the actuating function that is to be carried out, an actuating member, such as is shown at 42, for example is to be connected in any of the five positions determined by the holes 40, which around. the Periphery of the actuator halves 32 are arranged around.

As the operating lever 26 is shown in FIGS. 1 to 4 and 6 is, it is pivotably mounted in a space between the actuator halves 32. A bolt 46 extends as shown in FIG 4 through the actuating lever 26, and each of the actuator halves 32 includes a pocket 48, which sits around one half of the bolt 46, so that the bolt 46 is rotatable in the pocket 48, so that the lever 26 be pivoted transversely to the rotary movement of the actuator 24

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The embodiment shown in Fig. 5 differs from that shown in Fig. 4 in that a second bolt 46 ' is provided which extends transversely through the operating lever 26 and sits in a second pocket 48 'in each the actuator halves 32 is formed. The operating lever in the embodiment shown in Fig. 5 is on a Pivoting or any other movement prevented from the actuator halves 32 opposite. If that shown in FIG Embodiment is used, the cover 28 has a slot that is only straight because the operating lever cannot pivot.

When the actuating lever is pivoted relative to the actuator, biasing means are also provided, which at least act between one of the actuator halves 32 and the operating lever 26 to the operating lever at least in the direction to press an end position. In particular, the interior of each actuator half 32 includes an open pocket 50 having a bottom and an annular side wall extending inwardly so that the pockets 50 of the respective actuator halves 32 are open to each other. The lever 26 extends between the pockets 50 of the opposing actuator halves 32 and is at a distance therefrom, and biasing means, consisting of a spring 52, sit in one of the pockets in one of the actuator halves 32 to move against the operating lever 26 to lay. As shown in Fig. 2 is located

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the spring 52 in the left side to the top of the Bias the actuating lever 26 to the left. Of course, the spring 52 can also be in the pocket 50 in the other or opposite one Actuator half 32 sit to bias the operating lever 26 in the opposite direction.

It will be understood that in the embodiment shown in Fig. 5, in which two bolts 46 and 46 'are used to to cooperate with the two pockets 48 and 48 'in the actuator halves 32, no biasing means are used. the Bolts 46 and 46 'in the embodiment shown in Fig. 5 are spaced from one another in the longitudinal direction of the actuating lever 26 arranged.

In Fig. 6 other biasing means are shown to the operating lever 26 to be clamped in one end position. Each of the actuator halves 32 forms one half of a pocket 54, which immediately under the lower end 56 of the operating lever 26 '

lies. The lower end 56 of the operating lever 26 'is tapered and rounded or pointed and works with one. Link with a hemispherical end 58 together that passes through a spring 60 is tensioned upwards. In the position shown in Fig. 6, the operating lever 26 'is loaded so that it turns to the left as shown. However, when the operating lever 26 · is in an intermediate vertical Position and something beyond that is moved, the link 58 acts

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. with the end 56 of the lever together so that the lever is tensioned to rotate in the opposite direction or in the direction to the right as shown. The member 58 and the spring 60 thus form biasing means which interact with the actuating lever 26 'so that the lever 26 ^! is stretched from a middle intermediate layer in opposite directions.

The actuator halves 32 thus comprise several independent ones and alternatively provided support means or pockets 50 and 54 for supporting various biasing means associated with the Operating levers cooperate so that the operating lever can be in any of several ways or different Directions can be biased how you want that for a particular application.

The apparatus further includes bearing means supporting the actuator halves 32 and the housing 22 connect to one another. Specifically, the bearing means comprise a circular stub shaft 62, integral with each actuator half 32 and extending from the side thereof. The housing includes circular cavities 64 for receiving and rotatably supporting the shafts 62. It will of course be understood that the Shafts can protrude from the housing and the cavities can be provided in the actuator halves 32.

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The bearing means comprise a seal consisting of an annular projection 66 which extends around the shaft 62 from the housing 23 extends and slidably or rotatably in a corresponding annular groove in the side of each actuator half 32 sits directly on the shaft 62: Furthermore, an annular lip 68 is provided, which is integral with the actuator half 32 is formed and which extends into the end of the projection and is arranged sealingly opposite this. Of the Protrusion 66 is of course annular, and the term protrusion is used herein for descriptive purposes only, since the annular lip 68 is also a protrusion which acts in the same way as the protrusion 68. The protrusions or lips 66 and 68 cooperate to create a circular path that prevents foreign matter from getting on the Get sliding surface between each shaft 62 and the cavity in which it is rotatably mounted.

The outer ends of the shafts 62 include an annular bearing surface 70 which engages the bottom of the cavity in which the shaft 62 is seated so that the center 72 of the shaft end is not in contact with the bottom of the cavity in the housing 22; however, the shafts 62 can also be flat at their ends.

Because the actuator halves 32 are journalled by the stub shafts 62 which do not extend through the device, a space is created between the actuator halves on the axle

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of stub shafts. The operating lever 26 can thus extend through the axis of rotation of the actuator halves, i.e. the operating lever sits in the space between the actuator halves. This ensures a more compact unit.

Housing 22 includes first and second mating housing halves 74 'which are identical to one another and include upper portions that mate at an interface 76 as shown in FIG. Spaced parallel housing flanges extend downward, and between which the actuator halves 52 are arranged, in that they are rotatably mounted in the inwardly directed cavities of the housing flanges. Like the actuator halves 32, the housing halves 74 are of identical design and can be produced in the same or in the same form will.

The housing flanges have fastening means on their outer sides for storage of a loop support. Specifically, the loop support can be in the form of a U-shaped rod-like member have parallel legs 80 and an intermediate piece 82 and a hose clamp 84 carries.

As indicated above, a motion-transmitting one is often used Soul on. the connector or to the

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Actuator 42 attached, the "movable" in a shell is stored. The ends of this hose can be taken from the clamp 84 so that a rod-like member or soul can extend out of the shell and move through the Actuator 42 may be connected therewith. . ,

The housing flanges have multiple fasteners, each through a bore 86 in the sides of the housing halves are formed. These bores 86 can be provided with a thread or set up to receive a self-tapping screw be. Each bore 86 is seated in a protrusion 88 that protrudes from the flat outer surface 90.

The housing flanges also have holding means for holding the

Leg 80 of the hose support 78 when it is attached to any of the bores 86. In particular, include the retaining means has a plurality of recessed channels 92, 93, 94, 95, 96, 97, 98 and 99. Raised abutments 100 and 101 extend upwards from surfaces 90 to form the various recessed channels numbered 92-99.

Furthermore, auxiliary fasteners are provided, which by the Bores 102 are formed in the surfaces 104 by means of which auxiliary actuators or brackets 106 on the housing flanges can be attached. Each bore 102 can be threaded

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be provided or to accommodate a thread-cutting Screw. The bracket 106 can support an electrical switch that operates upon movement of the actuator is switched to perform a specific function. This is achieved by attaching a clamp to the. Periphery one of the flanges of the actuator is attached to cooperate with a switch mounted on the bracket 106 sits. The bracket 106 can support multiple switches and multiple clip pieces on the actuator flanges be attached. The bracket remains stationary, and with the rotation of the actuator, a piece of clamp migrates to is attached to a flange of an actuator half, with the actuator and engages a switch from the Bracket 106 is carried. It will be understood that an infinite number of positions along the semicircular Actuator flanges for bracket pieces can be selected, and brackets 106 can be attached to any of the holes 102 will. The bracket 106 also serves as a structural connection between the housing flanges, around their . make relative positions more rigid.

The flanges 100 protrude farthest from the surfaces 90, the surfaces 104 being slightly below the surfaces 100 but above the shoulders 88.

As can be seen, the bores 86 are spaced along one another

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Arranged first circle, which has the same center as the circle on which the holes 102 sit. One and only The difference is that the circle on which the holes 86 sit has a smaller radius than the circle on which the Bores 102 sit. As can also be seen, most of the recessed channels, designated 92-99, extend along a radial line passing through the center of one of the bores 86. By such a The legs 80 of the hose support fittings 78 can be in any arrangement from different positions of the housing 22 are arranged opposite. For example, the legs 80 on the same hole 86 as that shown in Fig. 1, but extend out through the recess channel 93, instead of through the recess channel 98. The support means 78 can also be attached to the upper right-hand bore 86 and extend down through the recessed channel 97. At least one of the holes 86 has more than a recessed channel that extends radially away from it.

On the inside of each housing flange opposite the surfaces 104 that receive the auxiliary mount 106 is a recessed one Lot 110 provided. The auxiliary member 106 includes two Forks, one of which lies on surface 104 and the other in recessed portion 110. Alternatively, the recessed Parts 110 and the inner fork of the bracket 106 are omitted, and the bracket 106 can be fixed by a screw in the

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ι r

ι ι

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see position are held, which extends through the outer plan and screwed into the housing half 90 is.

As best seen in Figures 11 and 12, each includes Housing half 74 has an arcuate recess 114, which on an arc whose center lies in the axis of rotation of the actuator. A movement actuation sits in the recess and cooperates with the actuator 24 to affect the movement of the actuator. Sitting in detail an arcuate piece 116 in recess 114 and includes Paragraphs 118 lengthways. An actuating pin 120 is seated in a recess 122 in the adjacent actuator half. A preloaded bolt 126 extends from the actuating bolt 120 and is inserted into a by a spring or the like Engaging with the piece 116 tensioned. It will be understood that as the actuator 24 rotates, the preloaded pin 126 runs over the shoulders 118 to induce movement of the actuator to oppose or control this movement and to hold the actuator in any position in which it has been moved. Alternatively, the bolt 126 and the actuating bolt 120 can be manufactured and stored in such a way that that. the bolt 126 on the curved piece 116 (or on a corresponding piece) only engages when it passes through the lateral Pivoting movement of the actuating lever 26, however, is pressed or moved. The bolt thus engages in the locking piece

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on when the operating lever is in an angular position, to prevent the actuator halves 32 from rotating. It is understood that the movement actuating means may have other shapes than those shown. For example, various other friction or locking pieces be provided in the recess 114 to with different other means to work together that differ from the actuator 24 extend.

As is apparent from the above description, the actuating device according to the invention can be in various Areas of application are used, and yet it consists of a very small number of components, namely an actuator half 32, a housing half 74, an operating lever 26 and two alternative biasing means to act on the lever. The device thus comprises only three basic elements - the lever, the actuator half and the housing half. However, these three basic elements provide a multitude of characteristics. One feature is the shape of stubby waves, which support the actuator so that the lever in a space between the actuator halves on the axis of rotation of the actuator halves sits. Another feature is the special shape of the stub shafts that support the actuator. Also includes the actuator several independent of each other ~~ and different Bearing means for bearing one of the various biasing means to cooperate with the lever. Another one

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The feature is the use of a bracket to interact with the actuator to perform a switching function.

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Claims (57)

1. A ') lifter actuator ekennz g egg chnet by a housing for attachment to a supporting structure, an actuator loading through the housing. is movably mounted, bearing means which connect each of the opposite sides of the actuator and the housing to one another, the actuator having a space in it between the bearing means, and a lever device seated in the space which extends to move the actuator to the housing opposite the Actuator extends away. 2. Device according to claim 1, characterized in that that the bearing means each comprise a circular shaft that is integral with the Housing or actuator is formed and extends away from this, and through a circular cavity in the other to accommodate the wave. 3. Apparatus according to claim 1 or 2, characterized by a seal, consisting an annular projection extending around each shaft and moveable in a mating annular projection Nut sits. - 20 509817/02 3 4 4. Apparatus according to claim 3, characterized by an annular lip extending into the end of the projection and is arranged sealingly opposite this. 5. Device according to one of claims 1 to 4, characterized in that the end of the shaft comprises an annular bearing surface which engages the bottom of the cavity, such that the center of the The end of the shaft is not in contact with the cavity. 6. Device according to one of claims 1 to 4, characterized in that one of the Shafts extending from each side of the actuator and two of the cavities in the housing for receiving the shafts are arranged with the shafts extending from the actuator in opposite directions. 7. Device according to one of claims 1 to 6, characterized in that the lever device is pivotally mounted by the actuator and that biasing means are provided between the Actuator and the lever device and for pressing the lever device into at least one position. 8. Device according to one of claims 1 to 7, d a - - 21 - 509817/0234 characterized in that each of the shafts forms an open pocket in its interior, such as that the pockets are inwardly open towards each other, that the lever device transversely to the pockets and between the r ' Bags sits and that the biasing means sit in at least one of the pockets and against the lever device place. 9 · Device according to one of claims 1 to 7 »characterized in that the actuator comprises first and second mating actuator halves identical to each other and each form one half of a pocket, and that the pretensioning means sit in the pocket and on the lever device for tensioning the lever device in opposite directions Attack directions from an intermediate layer. 10. Device according to one of claims 1 to 6, characterized in that the actuator comprises first and second mating actuator halves which are identical to one another, and that the lever device has an actuating lever, which sits between the halves, with a bolt extending at least transversely to the operating lever, and each of the Halves is arranged around one half of the bolt. - 22 - 509817/0234 11. Door direction according to claim 10, characterized by "two of the bolts at a distance from one another in the longitudinal direction of the · operating lever · which is enclosed by the halves are such that movement of the operating lever is prevented with respect to the halves. 12. The device according to claim 3, characterized in that that the actuator comprises a first and a second mating actuator half, the are identical to each other and the mating sections in mating engagement and spacing have recumbent paddles extending from the mating sections. 13. The device according to claim 12, characterized in that that the planes comprise connecting means for connection to an actuator. 14. Apparatus according to claim 13, characterized that the paddles comprise several of the connecting means. 15. The device according to claim 13, characterized in that the connecting means in comprise an alignment lying and facing each other holes in the flanges. - 23 5098 17/0234 16. The device according to claim 12, characterized by fasteners extending through the mating sections for fastening the halves together extend. 17. The device according to claim H, characterized in that that the housing comprises first and second mating housing halves which are identical to each other. 18. The device according to claim 17, characterized in that that the mating housing halves comprise spaced apart housing flanges and the actuator halves are seated between the housing flanges. 19. The device according to claim 18, characterized in that that the housing flanges comprise fastening means for mounting hose holders. 20. Apparatus according to claim 19, characterized in that that the housing flanges comprise a plurality of the fastening means. '- 24 509817/0234 21. The device according to claim 20, characterized by hose holders, which are held by the fastening means are attached to the housing flanges. 22. The device according to claim 21, characterized that the hose holders each comprise a TJ-shaped piece, one of which is a leg with a the housing flange and the other leg are connected to the other of the housing flanges. 23. The device according to claim 20, characterized in that the fastening means have a first Include a number of spaced holes. 24. The device according to claim 23, characterized in that the housing flanges holding means for receiving hose holders which are fastened in any of the bores. 25. The device according to claim 24, characterized in that the holding means have a number of include recessed channels. 26. The device according to claim 25, characterized in that each of the recessed - 25 -5 09817/0234 Channels extending along a radial line passing through the center of one of the bores. 27. The device according to claim 26, characterized in that at least one of the
Has bores a plurality of the channels extending radially therefrom. 28. The device according to claim 27 _f, characterized in that the housing flanges comprise auxiliary fastening means. 29. The device according to claim 28, characterized in that that the auxiliary fastening means comprise a second number of bores. 30. The device according to claim 29, characterized in that the first number of
Holes spaced on a first circle and that the second number of holes sit on a second circle. 31. The device according to claim 30, characterized in that that the first circle has a smaller radius than the second circle. - 26 -5 0 9 817/0234 32. Device according to claim 1, characterized in that that the housing 2 comprises spaced apart housing flanges and the actuator between them sits and brackets connect the puddles to one another at their peripheries. 33. Apparatus according to claim 32, characterized by a switch arrangement which is directed to the Holders sit to interact with the actuator. 34. The device according to claim 1, characterized by a recess in the housing, which on the Actuator shows by movement actuating means that sit in the recess and with the actuator for influencing cooperate with the movement of the actuator. 35. Lever actuating device, characterized by a housing for attachment to a support structure, an actuator movably supported by the housing, one extending from the actuator Lever means for moving the actuator in relation to the housing and bearing means which hold the housing and the actuator connect together and a circular shaft which is integrally connected to the actuator or the housing and extends away from it, and a circular one - 27 509817/0234 Include cavity in the housing or in the actuator for receiving the shaft. 36. Apparatus according to claim 35 »' through a seal consisting of an annular Projection extending around the shaft and movably seated in a mating annular groove. 37. Apparatus according to claim 36, characterized by an annular lip that extends into one end of the projection and is arranged sealingly opposite this. 38. Apparatus according to claim 37, characterized in that g e k e η η draws that the end of the shaft is an annular Includes bearing surface that engages the bottom of the cavity, such that the center of the end of the shaft does not contact the Cavity is in contact. 39. Lever actuation device, characterized by a housing for attachment to a support structure, an actuator movably supported by the housing, a lever device extending from the actuator for moving the actuator relative to the housing, the plurality of fastening means for supporting a - 28 509817/0234 2U0932 Comprising a support member in any of several positions and having retaining means for receiving a support member, which is attached to the housing at any one of the fasteners. 40. Apparatus according to claim 39, characterized in that the holding means have a number of recessed channels. 4L device according to claim 40, characterized in that that each of the recessed channels extends along a radial line which goes through the center of one of the fasteners. 42. Apparatus according to claim 41, characterized in that at least one of the fastening means has a number of the channels extending radially away from them. 43. Device according to claim 42, characterized in that that each of the fastening means is formed by a bore in the housing. 44. Apparatus according to claim 42, characterized in that the housing has several auxiliary - 29 509817/0234 • I · · • · · · a <♦ «I Il • t · · includes fasteners. 45. Apparatus according to claim 44, characterized in that the fastening means in the Sit spaced on a circle and use the auxiliary fasteners sit on a second circle. 46. Apparatus according to claim 45, characterized in that that the first circle has a smaller radius than the second circle. 47. Lever actuation device, g e k e η η ze leaning through a housing for attachment to a support structure, an actuator movably supported by the housing, one extending from the actuator Lever device for moving the actuator relative to the housing, the lever device being an actuating lever comprises, which is pivotably mounted in the actuator for oscillating movement transversely to the movement of the actuator = J-st, where the actuator has a number of independent and alter7 Native support means for supporting one of various biasing means for cooperation with the actuating lever comprises such that the operating lever is biasable in one of several ways. 48. Lever actuation device, marked 509817/0234 by a housing with two spaced apart Flanges, an actuator rotatably mounted between the flanges, an actuating lever attached to the actuator, extending therefrom, the actuator having a semicircular lower portion and a plurality of connecting means which are spaced about the periphery of the lower portion for connection to an actuator, the housing being semicircular lower section and several spaced fasteners around a semicircle with the same center point as the semicircular lower portion for supporting hose holders are. 49. Apparatus according to claim 48, characterized in that the housing holding means comprises on the fastening means for receiving hose holders attached to the housing by the fastening means are attached. 50. Apparatus according to claim 49, characterized in that the actuator has a first and a second mating actuator half that are identical to one another. - 31 - 509817/0234 51. Apparatus according to claim 50, characterized in that the housing has a first and a second mating housing half that are identical to one another. 52. The device according to claim 51 »thereby. indicates that the operating lever sits between the actuator halves, at least one bolt extends across the operating lever and each of the actuator halves is disposed around one half of the pin is. 53. Device according to claim 52, characterized in that that the actuator halves have a number of independent and alternative support means to the Support of various biasing means to cooperate with the operating lever include, such that the Actuating lever is biasable in one of several ways. 54. Apparatus according to claim 53, characterized by bearing means that the actuator halves and the Connect housing halves rotatably together and a circular Shaft integrally formed with and extending from each of the actuator halves, and - 32 -509817/023 4 include a cavity in each of the housing halves for receiving the shafts. 55. Apparatus according to claim 51 »characterized in that the matching housing halves include spaced housing flanges forming the semicircular lower portion and Include brackets that connect the paddles to each other at their peripheries. 56. Apparatus according to claim 55 »characterized by a switch arrangement seated on the brackets to interact with the actuator. 57. Apparatus according to claim 54, characterized by a recess in each of the housing halves, pointing to the actuator halves, and by moving ^% actuation means that sit in one of the recesses - and interact with the actuator so that the movement of the actuator is influenced. 509817/023 e rse ite