JPH0813910A - Lifting/lowering device for automobile window glass - Google Patents

Abstract

PURPOSE:To provide a lifting/lowering device for an automobile window glass capable of being installed in a narrow space by lifting or lowering a window glass with a driving belt suspended between a drive gear and a sprocket at both the upper and lower end sections of a guide rail. CONSTITUTION:A drive belt 33 is wound on a sprocket 10 at the upper end section of a guide rail 2 and on a drive gear 14 at the lower end section respectively, and it is folded downward at the upper end section and upward at the lower end section respectively. When a geared motor 18 is driven, the drive gear 14 is rotated, and sprocket teeth are engaged with coupling holes 34, 34... to feed the drive belt 33. The portion connected with a glass bracket 24 is moved upward or downward according to the rotating direction of the geared motor 18, and a window glass fixed with the glass bracket 24 is moved upward or downward. Since the drive belt 22 serving as the driving body of this lifting/ lowering device 1 is arranged nearly in the range of the guide rail 2, the device 1 is particularly miniaturized, and it can be used for a vehicle having a narrow installation space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel window glass elevator device. Specifically, it is an object of the present invention to provide a new elevator device for a window glass for an automobile, which is compact and can be installed in a small space without taking up a lot of space.

[0002]

2. Description of the Related Art FIG. 14 shows an example of a conventional elevator device for an automobile window glass.

The elevating device a for window glass for automobiles is disclosed in Japanese Utility Model Laid-Open No. 57-68068, and has a guide rail b fixed in a door frame of an automobile and having a substantially inverted V shape. The guide rail b has a vertical portion c that extends substantially vertically and an oblique portion d that extends obliquely downward from the upper end of the vertical portion c.

Reference numeral e denotes a drive belt, a part of which is slidably supported by the guide rail b, and a large number of engagement holes f, f, ... Has been formed.

Reference numeral g denotes a sprocket which is rotationally driven by a motor (not shown), and the drive belt e has its engaging holes f, f, ... meshed with the sprocket g.

When the sprocket g is rotationally driven by a motor (not shown), the drive belt e meshing with the sprocket g is fed and moved along the guide rail b. Therefore, the drive belt e is moved in the vertical direction in the vertical portion c of the guide rail b, and if a bracket (not shown) supporting a window glass (not shown) is supported by the drive belt e at this portion, The window glass is raised or lowered depending on the direction of rotation of the sprocket g.

[0007]

By the way, in the above-described conventional elevator device for window glass for automobiles, since the drive belt e is guided by the guide rail b having a substantially inverted V shape, a large triangular shape is provided. It occupies a space of shape and requires a large space for its installation. Therefore, there is a problem that it cannot be installed on a door having a small installation space, and the number of automobiles on which such a device can be installed is limited.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an elevator system for a window glass for an automobile according to the present invention is provided with a motor provided at an upper end portion or a lower end portion of a guide rail and a guide rotated by the motor. A drive gear provided at the upper end or the lower end of the rail, a sprocket provided at an end of the upper end or the lower end of the guide rail opposite to the end provided with the drive gear, and the drive gear. And a loop-shaped drive belt having an engagement hole for engaging the sprocket and spanning between the drive gear and the sprocket, and a bracket held by the drive belt and holding a window glass. Is.

[0009]

Therefore, in the vehicle window raising / lowering device of the present invention, the window is driven by driving the loop-shaped drive belt that is laid between the drive gears and the sprockets arranged at the upper and lower ends of the guide rail. Since it raises and lowers the glass, the entire unit fits within the range of the guide rails, and it requires a vertically narrow space with a length that almost corresponds to the lifting stroke of the window glass. It can also be installed in vehicles where space cannot be secured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the lifting device for window glass for automobiles according to the present invention will be described below with reference to the illustrated first embodiment.

Reference numeral 2 is a guide rail, which is formed by bending a metal plate.

The guide rail 2 extends almost vertically.
It is gently curved. The guide rail 2 has a substantially U-shaped recessed portion 3 that is open on one surface side, and one side surface of the recessed portion 3 is folded back from the opening side to be doubled. From the other side of the opening edge of the portion 3, an abutting edge 4 is provided so as to project laterally.

At the upper end of the guide rail 2, the bottom surface of the groove 3 and the abutting edge 4 are removed to form support pieces 5 and 5 facing each other on both sides. Cutouts 6, 6 are formed at the upper end of the cutout. In addition, the bottom surface portion removed from the above-mentioned upper end portion has concave groove portions 3 on both sides thereof.
The mounting pieces 7, 7 are formed by folding back from the side opposite to the opening side.

Reference numeral 8 is a shaft, and annular concave grooves 9, 9 are formed at both ends thereof. The shaft 8 is formed in the notches 6, 6 of the supporting pieces 5, 5 of the guide rail 2 in the groove 9,
9 is dropped into engagement and is rotatably supported there.

Reference numeral 10 is a sprocket, and a drum portion 11
, And sprocket teeth 12, 12, ... Formed on the outer peripheral surface of the drum portion 11, are supported by the shaft 8 and are rotatably supported between the support pieces 5, 5.

A gear case 13 is fixed to the lower end of the guide rail 2. A drive gear 14 is rotatably supported on the gear case 13.

The drive gear 14 includes a drum portion 15 and sprocket teeth 16, 16 protruding from the outer peripheral surface of the drum portion 15.
, And a connecting hole 17 having a quadrangular cross section is provided at the center of the drum portion 15.

Reference numeral 18 denotes a case 19 of the gear case 1.
The worm wheel 2 is a geared motor fixed to the motor 3 and has a worm 20 fixed to the output shaft of the motor and a worm wheel 21 meshed with the worm 20.
A shaft 22 is provided so as to project from the center of the shaft 1.
The intermediate portion 23 of No. 2 is a quadrangular prism-shaped connecting portion. The connecting portion 23 is fitted and connected to the connecting hole 17 of the drive gear 14, so that the drive gear 14 is rotated by the drive of the geared motor 18.

Reference numeral 24 is a glass bracket which supports the window glass and is vertically guided by the guide rail 2 and
It comprises a bracket main part 25 formed of a metal plate and a slider part 26 integrated with the bracket main part 25 by outsert molding of synthetic resin.

The bracket main portion 25 is formed of a metal plate,
A slightly wide concave line portion 27 extending in the vertical direction at the central portion is formed.

Then, in the lower two-thirds of the region of the bracket main portion 25 where the recessed portion 27 is formed, a slider portion is formed by outsert molding of synthetic resin having good slipperiness, for example, POM. 26 is a bracket main part 25
Are formed integrally.

Of the slider portion 26, the bracket main portion 25
A narrow and deep engagement groove 28 that is open rearward is formed near one side portion of the portion that protrudes to the back surface side, and a sliding contact surface 29 is formed on the other side portion. Further, an L-shaped engagement piece 29a protruding from the outer end of the sliding contact surface 29 to the back side is formed.

A groove 30 extending in the vertical direction is formed in a portion of the slider portion 26 located in the groove 27 of the bracket main portion 25, and the engaging projection 3 is formed in the groove 30.
.. are provided so as to line up in the vertical direction.
Engaging claws 32, 32 are formed at the tip of each of the engaging projections 31 so as to project to the left and right, and the side surfaces of the engaging claws 32, 32 are inclined surfaces 32a, 32a that approach each other toward the tip.

In the glass bracket 24, the engaging groove 28 is slidably engaged with one side surface of the groove 3 of the guide rail 2, and the sliding contact surface 29 is a protrusion of the guide rail 2. The edge 4 is slidably abutted. Also, the engagement piece 2
9a is slidably engaged with the rear surface side of the abutting edge 4 to prevent the glass bracket 24 from falling off the guide rail 2. Then, in this state, the glass bracket 24 is guided by the guide rail 2 and moves in the vertical direction.

Reference numeral 33 is a belt-shaped drive belt formed of a flexible synthetic resin, for example, polyurethane elastomer, and has a large number of engaging holes 34 in its longitudinal direction.
34, ... Are formed at regular intervals.

The drive belt 33 is wound around the sprocket 10 at the upper end portion of the guide rail 2 and around the drive gear 14 at the lower end portion of the guide rail 2 so as to be downward at the upper end portion and at the lower end portion. It is folded back upwards. Then, at the portion wound around the sprocket 10, the sprocket teeth 12 of the sprocket 10,
... mesh with the engagement holes 34, 34, ..., and in the portion wound around the drive gear 14, the sprocket teeth 16, 16, ... of the drive gear 14 have the engagement holes 34 ,. Three
4, ...

Both ends of the drive belt 33 are overlapped with each other in the engaging holes 34, 34, ... In the engaging protrusions 31, 31, ... Provided on the slider portion 26 of the glass bracket 24. . Is engaged, and the engaging projection 3
The engaging claws 32, 32, ... of 1, 31, ... Engage with the edges of the engaging holes 34, 34 ,. .. is prevented from falling off. In this way, the drive belt 33 is formed in a loop shape, and the drive belt 3 having the loop shape is formed.
A glass bracket 24 is connected to 3.

Reference numeral 35 is a stopper. The stopper 3
Reference numeral 5 has a recessed groove 36 having a depth corresponding to the thickness of the drive belt 33 and a width substantially equal to the width of the drive belt 33, and an engaging projection 37 is projected from the center of the recessed groove 36. The engaging projection 37 has an engaging claw 3 protruding laterally from the tip thereof.
8 and 38 are formed, and the side surfaces of the engaging claws 38 and 38 are inclined surfaces 38a and 38a that are closer to each other toward the tip.

The stopper 35 is the glass bracket 2 described above.
4 is in contact with the lower end of the driving belt 3 in the groove 36.
Part of 3 is fitted. At this time, the engagement protrusion 37 of the stopper 35 is engaged with the engagement hole 34 of the drive belt 33,
The engaging claws 38, 38 engage with the opening edge of the engaging hole 34, and the stopper 35 is prevented from falling off the drive belt 33.

Reference numeral 39 denotes a window glass of an automobile, which is guided by a guide portion (not shown) and moved up and down. The bracket main portion 25 of the glass bracket 24 is fixed to the window glass 39.

In the elevator 1 for a window glass for an automobile as described above, when the geared motor 18 is driven, the drive gear 14 is rotated, and the sprocket teeth 1 thereof are rotated.
The drive belt 33 in which the engaging holes 34, 34, ... Are meshed with each other, and the glass bracket 24 is connected in accordance with the rotation direction of the geared motor 18. Is moved upwards or downwards, which causes the window glass 39 to which the glass bracket 24 is fixed to move upwards or downwards.

In the elevator 1 for window glass for automobiles, the driving belt 33, which is the driving member thereof, is arranged substantially within the range of the guide rail 2, so that it is much more remarkable than the conventional one. It can be miniaturized and can be used in vehicle models with a small installation space.

Further, since both ends of the drive belt 33 are fixed to the glass bracket 24 to form a loop, prepare one suitable for the one requiring the longest moving stroke, and thereafter cut it appropriately. So you can use
One type of drive belt can be applied to various vehicle models having different window glass movement strokes.

Further, the driving belt 33 is fixed to the glass bracket 24 by engaging the engaging projections 31, 31, ... Provided on the glass bracket 24 with the engaging holes 34 of the driving belt 33.
34, ..., and the engaging claws 32, 32, ...
.. is simply engaged with the edges of the engaging holes 34, 34 ,.

Furthermore, since the drive belt 33 has a loop shape and is held by being wound around the sprocket 10 and the drive gear 14 at both upper and lower ends thereof, the guide rail 2 is provided with the drive belt 33 which is conventionally required. The work to hold is released, and therefore, the shape of the guide rail 2 can be simplified and the cost can be reduced.

Further, the guide rail 2 of the sprocket 10
Also, since the shaft 8 with the grooves 9 and 9 inserted into the sprocket 10 is simply dropped into the notches 6 and 6 formed in the upper end portion of the guide rail 2 from above, the assembling work is also performed in this respect. It will be easy.

[0037]

As is apparent from the above description, the elevator device for a window glass for an automobile according to the present invention has a motor provided at an upper end portion or a lower end portion of a guide rail and a guide rail which is rotated by the motor. A drive gear provided at the upper end or the lower end, a sprocket provided at an end of the upper end or the lower end of the guide rail opposite to the end provided with the drive gear, and the drive gear and the sprocket. A loop-shaped drive belt that has an engagement hole that engages with the drive gear and that is spanned between the drive gear and the sprocket; and a bracket that is held by the drive belt and holds a window glass. To do.

Therefore, in the vehicle window glass lifting device of the present invention, the window is driven by driving the loop-shaped drive belt that is laid between the drive gears and the sprockets arranged at the upper and lower ends of the guide rail. Since it raises and lowers the glass, the entire unit fits within the range of the guide rails, and it requires a vertically narrow space with a length that almost corresponds to the lifting stroke of the window glass. It can also be installed in vehicles where space cannot be secured.

It should be noted that the shapes and structures of the respective parts shown in the above-mentioned embodiments are merely examples of the embodiment when carrying out the present invention, and the technical scope of the present invention is thereby provided. It should not be construed as limiting.

[Brief description of drawings]

FIG. 1 shows an example of an embodiment of an elevator apparatus for a window glass for an automobile according to the present invention, together with FIGS. 2 to 13, and is a front view showing the whole.

FIG. 2 is a right side view showing the whole.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is an enlarged rear view showing the upper end of the guide rail.

FIG. 5 is a left side view showing an upper end portion of a guide rail in an enlarged manner.

FIG. 6 is an enlarged sectional view showing a gear case.

FIG. 7 is an enlarged perspective view showing an output shaft of a geared motor.

FIG. 8 is an enlarged front view showing a glass bracket.

FIG. 9 is a bottom view of the glass bracket.

FIG. 10 is an enlarged sectional view showing a connecting portion of the drive belt with the glass bracket.

FIG. 11 is an enlarged front view showing a part of the drive belt.

FIG. 12 is an enlarged bottom view showing the stopper.

FIG. 13 is an enlarged rear view showing the stopper.

FIG. 14 is an overall front view showing an example of a conventional vehicle window glass lifting device.

[Explanation of symbols]

 1 Vehicle Window Glass Lifting Device 2 Guide Rail 10 Sprocket 14 Drive Gear 18 Geared Motor (Motor) 24 Glass Bracket (Bracket) 33 Drive Belt 34 Engagement Hole 39 Window Glass

Claims (1)

[Claims] 1. A motor provided at an upper end portion or a lower end portion of a guide rail, a drive gear which is rotated by the motor and provided at an upper end portion or a lower end portion of the guide rail, and an upper end portion or a lower end portion of the guide rail. Of which, the sprocket provided at the end opposite to the end provided with the drive gear,
From a loop-shaped drive belt that has an engagement hole that engages with the drive gear and the sprocket and that is bridged between the drive gear and the sprocket, and a bracket that is held by the drive belt and that holds the window glass. A device for raising and lowering window glass for automobiles, which is characterized in that