JPS6337233B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel vehicle window glass lifting device. Specifically, it is an object of the present invention to provide a novel vehicle window glass elevating device that can suppress the swinging and rotation of the window glass during the elevating operation and can perform smooth elevating and lowering operations of the window glass.

Problems with the conventional vehicle window glass elevating device will be explained with reference to FIGS. 1 and 2. FIGS. 1 and 2 show a conventional lifting device in a simplified manner for explanation. In the figures, a is a guide fixed to the frame of a car door, for example. A flexible synthetic resin tape (not shown) is slidably arranged.
A sprocket wheel b is rotatably supported on the door frame and is rotated manually or by a suitable drive source such as a motor. This sprocket wheel b is meshed with the tape, so that the tape slides within the guide a in accordance with the rotation of the sprocket wheel. C is a connecting body that connects the window glass d and the tape in the guide a. Therefore, in such a lifting device, when the sprocket wheel b is rotated and the tape meshing with the sprocket wheel b is caused to slide up and down within the guide a, the connecting body c coupled to the tape also moves. Accordingly, the window glass d is also raised or lowered via the connecting body c.

However, in such a conventional lifting device, since the window glass and the tape, which is a movable body, are connected at one point, this is connected to the window glass d at the time of startup and movement. A force is applied to rotate it in the direction shown by the arrow in Figure 2. This would be the same even if both ends of the window glass d were guided by appropriate guide members, and such rotational moment would cause the window glass d to
As a result, the window glass d rubs against the window frame (not shown), which prevents the window glass d from moving up and down smoothly. This not only causes poor operability, but also means that, for example, when trying to raise and lower window glass using a motor, the motor is overloaded continuously or intermittently, causing the motor to overload. This also causes problems such as burnout of the parts.

The vehicle window glass elevating device of the present invention was developed in an attempt to eliminate the drawbacks of the conventional elevating device described above, and uses a large number of engaging elements such as flexible synthetic resin tape, spherical shape, abacus spherical shape, etc. a drive cable body such as a drive chain connected by a flexible linear body; a main guide for slidably guiding the drive cable body in at least a vertical section; and a drive cable body such as a drive chain connected by a flexible linear body; a driving part that raises or lowers the drive cable body along the main guide; a connecting member that connects a portion of the drive cable body that moves up and down along the main guide and the window glass;
The connecting member is characterized by comprising an auxiliary guide arranged substantially parallel to the main guide, and the connecting member is guided by both the main guide and the auxiliary guide.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of the vehicle window glass elevating device of the present invention will be described below with reference to illustrated embodiments.

The entire device for lifting and lowering vehicle window glass according to the present invention is as follows.
This can be better understood with a diagram. 1 is a housing, and this housing 1 is fixed to a frame of an automobile door (not shown). Housing 1
A substantially L-shaped passage 2 is formed in the
A fitting hole 4 opening in the same direction as the upper end opening 3 of the passage 2 is formed. A recess 5 is formed in contact with the bent portion of the L-shaped passage 2, and a sprocket wheel 6 is rotatably disposed within this recess 5. Reference numeral 7 denotes a drive unit fixed to the door frame, which is composed of a motor 8 and a deceleration and direction change unit 9. Its output shaft 10 is connected to the sprocket wheel 6, and by rotating the motor 8, the sprocket is driven. The wheel 6 can be rotated. In addition, sprocket wheel 6
can also be rotated by a handle (not shown), and either the driving force of the motor or the manual driving force by the handle can be arbitrarily selected.

Reference numeral 11 denotes a main guide, which is formed so as to have a substantially C-shape in cross section, with a notched groove 12 formed by cutting out a part of the side surface of a cylindrical pipe body in the axial direction. The illustrated main guide 11 has a shallow curve as a whole, but this is adapted to the curved state of a door frame (not illustrated). The lower end of the main guide 11 is fitted into the upper opening 3 of the housing 1. Reference numeral 13 denotes an auxiliary guide arranged parallel to the main guide 11, and is shaped like a cylindrical pipe. Further, the entire auxiliary guide 13 is also slightly curved to match the curved state of the door frame (not shown). The lower end of the auxiliary guide 13 is fitted into a fitting hole 4 formed in the housing 1. The main guide 11 and the auxiliary guide 13 are connected to each other by brackets 14, 14 above and below, and these brackets 14, 14 are further fixed to the door frame.

15 is a drive chain, which functions as a drive cable body. This drive chain 15 includes a large number of spheres 16, 16, . . . and a flexible linear body 1.
7 as the main member. Sphere 16
A hole 18 is formed through the center of the hole. The sphere 16 may be made of metal, but the weight of the entire device can be reduced if it is made of synthetic resin. The linear body 17 may be made of a material with low elasticity, but it is preferable to use a steel wire.
Steel wire is also used in this example. A large number of spheres 16, 16, .
It is passed through the holes 18, 18, . )hand,
A drive chain 15 is formed.

19, 19 are coil springs, and spheres 16, 1
6, . . . are inserted through both ends of the steel wire 17. Stoppers 20, 20 are fixed to both ends of the steel wire 17, and are formed to have a larger diameter than the coil springs 19, 19.
The drive chain 15 is slidably disposed within the guide space consisting of the L-shaped passage 2 and the main guide 11 of the housing 1, and is engaged with the sprocket wheel 6 within the housing 1. .
Accordingly, as the sprocket wheel 6 rotates, the drive chain 15 is slid within the main guide 11 in the upward or downward direction.

Reference numeral 21 denotes a synthetic resin bracket, in which a substantially cylindrical guide portion 22 and a cylindrical connecting pin 23 projecting laterally are integrally formed.
The connecting portion 24 between 2 and 23 is formed to have a thickness smaller than the width of the notch groove 12 of the main guide 11.
A through hole 25 is formed in the center of the guide portion 22 in the axial direction. Then, at one end of the drive chain 15, the steel wire 17 is inserted through the through hole 25 of the guide part 22, and the bracket 21 connects the drive chain 15 between the ball 16 at the end and the spring 19.
connected to. The guide portion 22 of the bracket 21 is slidably inserted into the guide 11, and
The connecting portion 24 is located within the notch groove 12 of the guide 11. Note that the outer diameter of the connecting pin 23 is larger than the outer diameter of the main guide 11.

A connecting member 26 connects the window glass 27 and the drive chain 15, and is connected to a support 28 that supports the window glass 27 and the drive chain 15, and is slidably engaged with the auxiliary guide 13. It consists of a moving body 29. The support body 28 is formed by processing a suitable metal plate, for example, and has two grooves extending in a direction perpendicular to the sliding direction of the drive chain 15, that is, a support groove 30 that opens upward, and a support groove 30 that is open on the side of the guides 11 and 13. An open sliding groove 31 is integrally formed. Reference numeral 32 denotes a cushion rubber material, and the cushion rubber material 32 wraps the lower edge of the window glass 27, and this portion is fitted into the support groove 30 of the support body 28.
and window glass 27 are combined.

The movable body 29 is molded from synthetic resin, and a protrusion 33 is formed on the side facing the support body 28 to slidably engage with a sliding groove 31 of the support body 28. Two slide engagement portions 34 and 35 are formed on the side opposite to the side where the strip 33 is formed, that is, the side facing the guides 11 and 13, respectively. These two slide engagement parts 34 and 3
5 is formed as a groove extending in a direction perpendicular to the direction in which the protrusion 33 extends, and the engaging portion 3
4 is slightly larger than the outer diameter of the main guide 11, and the groove width of the engaging portion 35 is slightly larger than the outer diameter of the auxiliary guide 13. Further, an arcuate recess 3 is formed on the opposing surface of the intermediate portion of the engaging portion 34.
6, 36 are formed, and the bracket 21
The connecting pin 23 can be slidably and rotatably received therein. In such a movable body 29, the slide engaging portion 34 is slidably engaged with the main guide 11, and the connecting pin 23 of the bracket 21 is received by the recesses 36, 36, and another The slide engagement portion 35 is slidably engaged with the auxiliary guide 13, and the protrusion 3
3 is slidably engaged with the sliding groove 31 of the support body 28. Thereby, the window glass 27 is connected to the drive chain 15 via the connecting member 26.

Therefore, in the above-mentioned vehicle window glass elevating device according to the present invention, when the sprocket wheel 6 is rotated by the motor 8 or by manual operation, the main guide 1
1, the drive chain 15 is raised or lowered. Therefore, the connecting member 26 connected to this drive chain 15 is also raised or lowered, and as a result, the window glass 27 supported by the connecting member 26 is raised or lowered. Due to some dimensional accuracy issues, the main guide 11 and window glass 27
Even if the intervals between the moving locus and the moving locus of the window glass 27 are not completely equal within the movement range of the window glass 27, this problem in dimensional accuracy can be caused by the sliding groove 31 of the support body 28 of the connecting member 26 and the protrusion of the moving body 33 is the protrusion 3
3 and/or the connecting pin 23 of the bracket 21 coupled to the drive chain 15 and the arcuate recesses 36, 36 of the sliding engagement portion 34 of the movable body 29 are connected to each other by sliding each other in the protruding direction of the connecting pin 3. 2
It is absorbed by sliding each other in the protruding direction of 3. Furthermore, even if the movement trajectory of the main guide 11 and the window glass 27 is misaligned in the width direction of the window glass 27, the sliding groove 31 of the support body 28
Since the protrusion 33 of the movable body 29 slides against each other in the longitudinal direction thereof, such deviation is absorbed.

Further, since the movable body 29 of the connecting member 26 is raised or lowered with its two sliding engagement parts 34 and 35 guided by the guides 11 and 13 arranged parallel to each other, rotational moment is not applied to the window glass 27. This ensures extremely smooth operation.

As is clear from the above description, in the vehicle window glass elevating device of the present invention, the connecting member, which is moved as the drive cable body moves and supports the window glass, guides the drive cable body. Since the window glass is guided by a main guide and an auxiliary guide placed approximately parallel to the main guide, no rotational moment is applied to the window glass during the operation of raising and lowering the window glass, allowing extremely smooth operation. can.

In the above description of the embodiment of the present invention, a drive chain in which a spherical engaging element is connected with a flexible linear body in a bead-like manner is used as the drive cable body. The present invention is not limited to this, and other materials such as flexible synthetic resin tapes may be used as the drive cable body.

[Brief explanation of the drawing]

1 and 2 are simplified side views showing an example of a conventional vehicle window glass elevating device for explanation, and FIGS. 3 to 6 are side views showing an example of the implementation of the vehicle window glass of the present invention. Fig. 3 is a perspective view of the whole with a part cut away and a part disassembled, Fig. 4 is an enlarged sectional view taken along the - line in Fig. 3, and Fig. 5
The figure is a view taken in the direction of the arrows in FIG. 4, and FIG. 6 is an enlarged exploded perspective view of the main parts. Explanation of symbols, 7... Drive unit, 11... Main guide, 13... Auxiliary guide, 15... Drive cable body (drive chain), 16... Engagement element (sphere),
17... Linear body, 26... Connection member, 27... Window glass, 28... Support body, 29... Moving body.

Claims (1)

[Scope of Claims] 1. A drive cable body such as a drive chain in which a large number of engaging elements such as flexible synthetic resin tapes, spheres, abacus spheres, etc. are connected by flexible linear bodies;
a main guide for slidably guiding the drive cable body over at least a vertical section; a drive for raising or lowering the drive cable body along the main guide manually or by means of a suitable power source; It consists of a connecting member that connects a part that moves up and down along the main guide and the window glass, and an auxiliary guide that is arranged approximately parallel to the main guide,
A device for raising and lowering a vehicle window glass, wherein the connecting member is guided by both the main guide and the auxiliary guide. 2. The connecting member consists of a support body that supports the window glass, and a movable body that is connected to the drive cable body and slidably engaged with the auxiliary guide, and the support body and the movable body are connected to the movement of the drive cable body. 2. The vehicle window glass elevating device according to claim 1, wherein the vehicle window glass elevating device is coupled to each other so as to be slidable in a direction substantially perpendicular to the above-described direction.