JP2000345763A - Window regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a window regulator which has a structure using a belt- shaped body such as a tape, and can enhance its degree of freedom of layout. SOLUTION: A power window regulator 10 includes a motor 40 and a sprocket wheel 46 which are individually arranged at locations separate from a guide rail 16 toward the rear of a vehicle. The guide rail 16 has an upper guide 30 and a lower guide 32 arranged at upper and lower edges thereof, respectively, and a tape 48 wrap-connects the guides 30, 32, and the sprocket wheel 46 so as to form an approximate triangle. According to the above structure, even if the locations where the motor 40 and the sprocket wheel 46 are installed are changed, only the tape 48 forms a deformed triangle, and therefore the motor 40 and the sprocket 46 can be set at arbitrary locations. As a result, the degree of freedom of layout of the window regulator can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window regulator provided in a vehicle door for raising and lowering a door glass by a driving force of a driving means.

[0002]

2. Description of the Related Art A conventional technique will be described below using a power window regulator as an example. Conventional power window regulators are mainly of the wire type or the sector type. The wire-type power window regulator has advantages in that it is lightweight and has excellent vehicle mountability, but on the other hand, it has disadvantages in that durability is high and the cost is high. On the other hand, the power window regulator of the sector type has advantages in that it is inexpensive and has excellent durability, but on the other hand, it has disadvantages in that the weight is heavy and the vehicle mountability is poor. In other words, the advantages of the wire system are disadvantageous to the sector system, and the disadvantages of the wire system are advantages of the sector system.

Therefore, a power window regulator having both advantages has been developed, and a so-called tape type power window regulator has been devised. An outline of an example of the configuration of this type of tape-type power window regulator is as follows. A guide rail is provided in a side door along a door height direction, and a door glass is supported along the guide rail so as to be able to move up and down. A carrier plate to which the lower end of the guide rail is fixed, a sprocket rotatably disposed at the lower end of the guide rail, and a motor fixed to the lower end of the guide rail via a bracket and applying a driving force to the sprocket. And a tape guide disposed at the upper end of the guide rail and the like, and a flexible tape having an intermediate portion wound around the tape guide and the sprocket and a terminal portion fixed to the carrier plate. It is configured.

[0004] According to the above configuration, when the motor is driven forward or backward, the sprocket rotates forward or backward. For this reason, the tape arranged in an elongated ring along the guide rail moves in the normal rotation direction or the reverse rotation direction. As a result, the carrier plate is raised or lowered, and the door glass is raised or lowered.

[0005]

However, in the case of the tape-type power window regulator having the above-described structure, a motor for driving the tape is fixed to a regulator body such as a guide rail via a bracket in consideration of vehicle mountability. However, since the motor is integrated with the regulator body, the position of the motor is naturally limited to the vicinity of the guide rail, and there is a problem that the layout flexibility of the power window regulator is reduced.

The present invention has been made in consideration of the above-described circumstances, and has as its object to provide a window regulator that can increase the degree of freedom in layout in a configuration using a band such as a tape.

[0007]

According to a first aspect of the present invention, there is provided a window regulator including a guide rail disposed in a vehicle door with a longitudinal direction of a door glass ascending and descending, and slidable along the guide rail. The glass support to which the door glass is fixed, the upper guide and the lower guide respectively provided at the upper end and the lower end of the guide rail, and are disposed at positions spaced apart from the guide rail in the door front-rear direction, A driving means for applying a driving force, and both end portions are fixed to the glass support, and an intermediate portion is wound around the upper guide, the lower guide, and the sprocket, thereby forming a substantially triangular closed loop, and moving in the rotation direction of the sprocket. And a flexible band-shaped body.

According to the present invention having the above structure, when a driving force is applied to the sprocket from the driving means, the sprocket rotates around its axis. Since the intermediate portion of the strip is wound around the sprocket, when the sprocket rotates, the strip moves in the rotation direction. Since the intermediate portion of the strip is wound around an upper guide and a lower guide provided at the upper end and lower end of the sprocket and the guide rail, respectively, and forms a substantially triangular closed loop, when the sprocket is driven to rotate, the strip is rotated. Moves while drawing a substantially triangular trajectory. Since both ends of the band are fixed to a glass support slidably provided on the guide rail, the glass support is slid along the guide rail in the door glass elevating direction by moving the band. . Thereby, the door glass fixed to the glass support is raised and lowered.

Here, in the present invention, the driving means for applying a driving force to the sprocket for moving the strip is disposed at a position separated from the guide rail in the front-rear direction of the door, so that the strip has a substantially triangular closed loop. Therefore, even if the arrangement position of the driving means is changed, only the shape of the closed loop of the belt-like body becomes a different triangle. Therefore, according to the present invention, the degree of freedom in the layout of the window regulator can be increased.

According to a second aspect of the present invention, there is provided a window regulator according to the first aspect, wherein the guide rail and the driving means are interconnected via a door inner panel of a vehicle door. , Is characterized.

According to the present invention, since the guide rail and the driving means are connected to each other via the door inner panel of the vehicle door, the integration between the regulator body such as the guide rail and the driving means is improved. Can be secured.

According to a third aspect of the present invention, in the window regulator according to the first or second aspect, at least one of the upper guide and the lower guide applies tension to the band-shaped body. It is characterized in that tension applying means is provided.

According to the present invention having the above structure, the tension applying means for applying the tension of the strip is provided on at least one of the upper guide and the lower guide provided at the upper end and the lower end of the guide rail. An appropriate tension is always applied to the belt by the tension applying means. For this reason, the slack of the band can be prevented, and the occurrence of poor meshing of the band with the sprocket can be prevented.

According to a fourth aspect of the present invention, in the window regulator according to any one of the first to third aspects, the sprocket is integrated with the driving means. Is provided with a cover that rotatably holds the sprocket and guides the movement of the strip.

According to the present invention, the sprocket is integrated with the driving means, and the driving means is further provided with a cover for rotatably holding the sprocket and guiding the movement of the band. Therefore, for example, even when the upper guide, the lower guide, and the sprocket are not on the same plane but slightly displaced from each other due to the attachment position to the door inner panel, the band-shaped body can be reliably engaged with the sprocket.

According to a fifth aspect of the present invention, in the window regulator according to the fourth aspect, the cover is provided with a pressing portion for pressing the band-shaped body in a direction in which the band is engaged with the sprocket. Features.

According to the present invention having the above structure, since the cover is provided with the pressing portion for pressing the belt in the direction in which the belt engages with the sprocket, the meshing state between the belt and the sprocket can be further stabilized.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of a window regulator according to the present invention will be described with reference to FIGS.
An embodiment will be described.

FIG. 1 is a front view showing the entire configuration of a power window regulator 10 according to the present embodiment. FIG. 2 is a side view of the power window regulator 10 according to the present embodiment. further,
FIG. 3 is a front view showing a state where the power window regulator 10 according to the present embodiment is mounted on the side door 14 of the truck 12.

As shown in these figures, the power window regulator 10 includes a guide rail 16 disposed in a side door 14 as a "vehicle door" with a longitudinal direction of the door glass ascending and descending. The guide rail 16 is attached to the door inner panel of the side door 14 via mounting brackets 18, 20, and 22 provided at appropriate positions in the longitudinal direction (in the present embodiment, at three locations: an upper portion, an intermediate portion, and a lower end portion). It is fixed to. The guide rail 16 is formed in a channel shape. The guide rail 16 has a carrier plate 26 that supports the lower edge of the door glass 24.
Are slidably inserted through a slider 28. Both ends 48A and 48B of a tape 48 described later are fixed to the slider 28 in a superposed state. In a narrow sense, the carrier plate 26 corresponds to the “glass support” in the present invention, but in a broad sense, the carrier plate 26 and the slider 28 correspond to the “glass support” in the present invention.

An upper guide 30 and a lower guide 32 for guiding the movement of an intermediate portion 48C of the tape 48 described later (that is, for regulating the moving direction) are disposed on the upper end side and the lower end side of the guide rail 16. Has been established. Each of the upper guide 30 and the lower guide 32 has a semicircular shape, and an intermediate portion 48C of the tape 48 is wound around the peripheral surface thereof. Further, the lower guide 32 is provided so as to be slightly slidable along the longitudinal direction of the guide rail 16 or rotatable by a predetermined angle with respect to the lower end of the guide rail 16. It is urged toward the tape 48 by the tension mechanism 34 as an "applying means". In addition, the tension mechanism 34 is configured with a compression coil spring 36 as a main part. The upper end of the compression coil spring 36 is abutted and locked by a spring locking piece 38 bent and raised from the mounting bracket 22, and the lower end of the compression coil spring 36 is abutted and locked by the upper end surface of the mounting bracket 22. Have been.

Further, a motor 40 as a "driving means" is disposed at a position separated from the rear side of the door at an intermediate portion of the guide rail 16 in the height direction. Motor 40
Is formed independently of the regulator body such as the guide rail 16 and is fixed to the door inner panel of the side door 14 via the mounting bracket 42. Thereby, the guide rail 16 and the motor 40 are connected to the side door 1.
4 are interconnected via a door inner panel.

At the center of the motor 40, a cover 44 formed in a substantially fan shape is attached.
A sprocket 46 is provided between the cover 44 and the motor 40.
Are rotatably held. The sprocket 46 is connected to the motor body via gears such as worms and worm wheels (not shown) provided in the motor 40,
It is configured to rotate around its axis upon receiving the driving force of the motor body.

The above-described upper guide 30 and lower guide 3
2 and a sprocket 46, a tape 48 as a “band-like body” having a predetermined rigidity and flexibility is wound around the sprocket 46. As a result, the tape 48 forms a substantially triangular closed loop. The tape 48 has a large number of rectangular openings (not shown) at predetermined intervals.
When a part of these openings is engaged with the teeth of the sprocket 46, the rotational force of the sprocket 46 is transmitted to the tape 48.

Next, the operation and effect of this embodiment will be described.

When a power window regulator switch (not shown) is operated to raise the door glass 24, the motor 40 is driven to rotate forward. When the motor 40 is driven to rotate forward, the sprocket 46 rotates clockwise in FIG. 1 via a worm, worm wheel, etc., not shown, and moves the tape 48 in the direction of arrow A. Tape 4
8 moves in the direction of arrow A.
The carrier plate 26 to which 8A and 48B are fixed rises along the guide rail 16. As a result, the door glass 24 rises while being supported by the carrier plate 26.

Conversely, to lower the door glass 24,
When a power window regulator switch (not shown) is operated, the motor 40 is driven to rotate in the reverse direction. When the motor 40 is driven in reverse, the sprocket 46 rotates counterclockwise in FIG. 1 to move the tape 48 in the direction of arrow B. When the tape 48 moves in the direction of arrow B, the carrier plate 26 descends along the guide rail 16. Thereby, the door glass 24 descends while being supported by the carrier plate 26.

Here, in this embodiment, the motor 4 for applying a driving force to the sprocket 46 for moving the tape 48 is used.
By disposing the tape 40 at a position away from the guide rail 16 to the rear side of the door, the tape 48 forms a substantially triangular closed loop. Therefore, even if the position of the motor 40 is changed, The only difference is that the shape of the closed loop becomes a different triangle. Supplementally, if the length of the tape 48 is not changed, the tape 48 between the upper guide 30 and the lower guide 32 is used as the base, and an irregular triangle having the same height up to the sprocket 46 as the apex is arbitrarily selected. Layout. On the other hand, if the length of the tape 48 can be changed, the tape 48 between the upper guide 30 and the lower guide 32 is set as the bottom side,
The layout can be determined by arbitrarily selecting irregularly shaped triangles having different heights to the sprocket 46 serving as the apex. Therefore, according to the present embodiment, the degree of freedom of the layout of the power window regulator 10 can be increased.

In the present embodiment, the guide rail 16
Since the motor 40 and the motor 40 are connected to each other via the door inner panel of the side door 14, integrity of the motor 40 with the regulator body such as the guide rail 16 can be ensured.

Further, in this embodiment, the guide rail 1
The tension mechanism 34 is provided on the lower guide 32 side provided at the lower end of the tape 6, and the tension is applied to the tape 48 by the tension mechanism 34.
A moderate tension can always be applied to Therefore, it is possible to prevent the tape 48 from being loosened and to prevent the tape 48 from engaging with the sprocket 46 from being poorly engaged.

In addition, in this embodiment, the sprocket 4
6 is integrated with the motor 40, and furthermore, the motor 40 holds the sprocket 46 rotatably and the tape 48.
The cover 44 that guides the movement of
For example, even when the upper guide 30 and the lower guide 32 and the sprocket 46 are slightly out of alignment with each other due to the attachment position to the door inner panel, the tape 48 can be reliably engaged with the sprocket 46.

In this embodiment, the tension mechanism 3
Although 4 is provided on the lower guide 32 side, it is not limited to this, and may be provided on the upper guide 30 side, or may be provided on both the upper guide 30 side and the lower guide 32 side.

[Second Embodiment] Next, a second embodiment of the window regulator according to the present invention will be described with reference to FIG. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 4, in the power window regulator 50 according to the present embodiment, the tension mechanism 34 used in the first embodiment described above is omitted. That is, in the present invention, the tension mechanism 3
4 is not an essential component, and can be omitted. If the tension mechanism 34 is omitted,
Accordingly, the number of parts and the number of assembling steps can be reduced, so that the structure can be simplified, downsized, and the cost can be reduced.

When the tension mechanism 34 is abolished and the tape 48 expands beyond an allowable range due to aged deterioration or the like, the tape 4 may be periodically inspected.
What is necessary is just to take care of the slack of 8. For example, one of the alternatives is to temporarily remove one of the two terminal portions 48A and 48B of the tape 48 from the slider 28, increase the amount of overlap between the two, and then reattach the tape to the slider 28. Alternatively, the mounting bracket 4 of the motor 40
The bolt insertion hole for fixing the motor 40 to the door inner panel is made to be a long hole in advance, the bolt is once loosened, and the mounting position of the motor 40 with respect to the door inner panel is changed to the guide rail 16.
It is also possible to apply a method in which the bolt is re-tightened after being shifted further away from the bolt.

[Third Embodiment] Next, a third embodiment of the window regulator according to the present invention will be described with reference to FIG. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 5, the power window regulator 60 according to the present embodiment is characterized in that a pulley 62 is used instead of the fixed upper guide 30 used in the first embodiment. is there.

According to this configuration, the intermediate portion 4 of the tape 48
8C is wound around a pulley 62, and when the tape 48 moves, the pulley 62 rotates with this.
8 changes from the frictional resistance due to surface contact to the rolling frictional resistance. Therefore, the tape 48 due to abrasion
Degradation can be suppressed.

In this embodiment, the upper guide 30
The pulley 62 is used instead of the lower guide 32, but the pulley 62 may be used instead of the lower guide 32.
A configuration may be adopted in which a pulley 62 is used instead of both the lower guide 32 and the lower guide 32.

[Fourth Embodiment] Next, a fourth embodiment of the window regulator according to the present invention will be described with reference to FIGS. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in these figures, in the power window regulator 70 according to the present embodiment, a projection 72 as a “pressing portion” is provided at the outer peripheral end of the cover 44 used in the first embodiment. There is a feature in that it is provided. More specifically, the protrusion 72 is formed integrally with the outer peripheral end of the cover 44 and on one side in the moving direction of the tape 48. Further, the protrusion 72 presses the outer surface of the boundary portion of the range where the tape 48 meshes with the sprocket 46 toward the sprocket 46 side.

According to the above configuration, the projection 72 is
Are formed integrally, and the outer surface of the tape 48 is pressed toward the sprocket 46 by the projection 72.
The meshing state between the tape 48 and the sprocket 46 can be further stabilized without increasing the number of parts. In other words, it is possible to prevent the tape 48 from being loosened and spreading in a direction away from the sprocket 46.

In this embodiment, the projection 72 is formed integrally with the outer peripheral end of the cover 44 and on one side in the moving direction of the tape 48. However, the present invention is not limited to this. A configuration in which the projection 72 is integrally formed on the opposite side or both sides of the moving direction may be adopted. Further, a pressing portion may be provided by hitting a separate component such as a rivet on the cover 44, or a roller or the like may be attached to the cover 44 when the sliding resistance with the tape 48 is to be reduced. You may.

Fifth Embodiment Next, a fifth embodiment of the window regulator according to the present invention will be described with reference to FIGS. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in these figures, in the power window regulator 80 according to this embodiment, the motor 4
The motor 40 is integrated with the guide rail 16 by fixing the zero mounting bracket 82 to the guide rail 16. In other words, depending on the internal structure of the side door 14, the motor 40 may have to be arranged close to the guide rail 16. In such a case, the motor 40 is intentionally moved to the guide rail 1.
6, the motor 40 need not be separately and independently attached to the door inner panel. This means that the motor 40 may be integrated with the guide rail 16 via the mounting bracket 82 to improve the vehicle mountability as in the related art. . However, even in this case, the tape 4
8 must form a substantially triangular closed loop.

In addition, in the above configuration, the cover 84
Has been changed to a shape close to a circle that substantially covers the sprocket 46. If the sprocket 46 can be covered to this extent, it is possible to prevent the sprocket 46 from being wet by rain and the like, and to prevent dust and the like from adhering to the sprocket 46. 80 can be improved in durability.

[Sixth Embodiment] Next, referring to FIG.
A sixth embodiment of the window regulator according to the present invention will be described. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in this figure, the manual window regulator 90 according to the present embodiment is characterized in that it is configured as a manual type by attaching a manual operation handle 92 instead of the motor 40, as the name suggests.

Specifically, the position at which the motor 40 is disposed (ie, the position separated from the guide rail 16 toward the rear of the door)
Is provided with a substantially triangular mounting bracket 94, and the mounting bracket 94 is fixed to the door inner panel. Further, a sprocket 46 and a manually operated handle 92 as a "drive means" are coaxially arranged at the center of the mounting bracket 94. The cover 44 described above is disposed around the sprocket 46.

The tape 48 is made of the upper guide 30, the lower guide 32 and the sprocket 46 disposed at the upper and lower ends of the guide rail 16 in the same manner as in the first embodiment.
To form a substantially triangular closed loop.

Also in the above-described configuration, similarly to the first embodiment, the manual operation handle 92 for applying the driving force (ie, the operation force of the occupant) to the sprocket 46 is separated from the guide rail 16 to the rear side of the door. By arranging the tape at the position, the tape 48 forms a substantially triangular closed loop.
The operation and effect such as that the degree of freedom of the layout of 0 can be increased are obtained.

In the above-described embodiment, the power window regulators 10, 50, 60, 70, 80 and the manual window regulator 90 mounted on the side door 14 of the truck have been described as examples. However, the present invention is not limited to this. The present invention may be applied to general vehicles such as passenger cars.

In the above embodiment, the motor 40
Alternatively, the manual operation handle 92 is disposed away from the guide rail 16 toward the vehicle rear side. However, the invention is not limited thereto. The motor 40 or the manual operation handle 92 is disposed away from the guide rail 16 toward the vehicle front side. May be.

Further, in the above embodiment, the tape 4
Although 8 was used, the present invention is not limited to this, and any configuration may be applied as long as it is configured as a band.

[Brief description of the drawings]

FIG. 1 is a front view showing an overall configuration of a power window regulator according to a first embodiment.

FIG. 2 is a side view of the power window regulator shown in FIG.

FIG. 3 is a front view showing a state in which the power window regulator shown in FIG. 1 is mounted on a side door of a truck.

FIG. 4 is a front view showing an overall configuration of a power window regulator according to a second embodiment.

FIG. 5 is a front view showing the overall configuration of a power window regulator according to a third embodiment.

FIG. 6 is an enlarged front view of a main part (motor) of a power window regulator according to a fourth embodiment.

FIG. 7 is an enlarged view of a section taken along line 7 shown in FIG. 6;

FIG. 8 is a front view showing the overall configuration of a power window regulator according to a fifth embodiment.

FIG. 9 is a side view of the power window regulator shown in FIG.

FIG. 10 is a front view showing the overall configuration of a manual window regulator according to a fifth embodiment.

[Explanation of symbols]

 Reference Signs List 10 power window regulator 14 side door (vehicle door) 16 guide rail 24 door glass 26 carrier plate (glass support) 28 slider (glass support) 30 upper guide 32 lower guide 34 tension mechanism (tension applying means) 40 motor (drive) Means) 44 Cover 46 Sprocket 48 Tape (belt) 48A Terminal 48B Terminal 48C Intermediate 50 Power window regulator 60 Power window regulator 62 Pulley (upper guide) 70 Power window regulator 72 Projection (pressing part) 80 Power window regulator 84 Cover 90 Manual window regulator 92 Manual operation handle (drive means)

Claims (5)

[Claims] 1. A guide rail disposed in a vehicle door with a longitudinal direction of a door glass ascending and descending; a glass support slidably provided along the guide rail, to which a door glass is fixed; and a guide rail. An upper guide and a lower guide respectively provided at an upper end and a lower end of the vehicle, driving means for providing a driving force to a sprocket disposed at a position separated from the guide rail in the front-rear direction of the door, and both end portions on the glass support. A belt that is fixed and has a substantially triangular closed loop by being wound around the upper guide, the lower guide, and the sprocket, and has a flexibility that moves in the rotation direction of the sprocket. Wind regulator. 2. The guide rail and the driving means,
The window regulator according to claim 1, wherein the window regulator is connected to each other via a door inner panel of the vehicle door. 3. The at least one side of the upper guide and the lower guide is provided with tension applying means for applying a tension to the band-shaped body. Wind regulator. 4. The sprocket is integrated with the driving means, and the driving means is further provided with a cover for rotatably holding the sprocket and guiding movement of the strip. The window regulator according to any one of claims 1 to 3, wherein: 5. The window regulator according to claim 4, wherein the cover has a pressing portion for pressing the band-shaped body in a direction in which the band is engaged with the sprocket.