JPS6149472B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle window glass lifting device.
Specifically, it is an elevating device that raises and lowers a window glass using a drive cable formed by connecting a large number of engaging pieces by a linear body, and the window glass is moved up and down after the window glass has reached its lowering limit point. To prevent fatigue of the linear body by preventing the force that tends to lower the cable from acting on the linear body of the drive cable, thereby preventing accidents of cutting the linear body and extending its life. It is an object of the present invention to provide a novel vehicle window glass elevating device as described above.

As shown in FIG. 1, a number of spherical engaging pieces b, b, each having a hole a are used as a lifting device for a vehicle window glass.
It is known that the window glass e is raised and lowered using a drive cable d formed by connecting the wires c in a beaded manner. To explain this elevating device in more detail, the drive cable d is slidably arranged inside the vertical guide f _v and the horizontal guide f _h , and the engaging pieces b, b, ...... are arranged on the horizontal guide f. The sprocket wheel _h is rotatably disposed in the housing g at a portion between the vertical guide _fv and the drive cable d is engaged with the sprocket wheel h, which is rotatably disposed within the housing g. It is designed to be slid. The upper end of the drive cable d and the window glass e are connected by a connector j extending inwardly and outwardly through a groove i formed along the axial direction on one side of the vertical guide _fv .

In such a lifting device, when the sprocket wheel h is rotated in the forward or reverse direction, the drive cable d is connected to the guide f or the housing g accordingly.
As a result, the window glass e is raised or lowered.

However, in such a lifting device, when the window glass e is lowered by the rotational force of the motor m of the drive unit l, even after the window glass e reaches the lowering limit point, there is no attempt to lower the window glass e. It is normal for the power to continue to increase for a while. After the window glass e reaches the lowering limit point, the window glass e is prevented from lowering further by a guide etc.
A very large force is applied to the drive cable d until the motor m stops, so that the drive cable d
An excessive load will be applied to the linear body c that connects the engaging pieces b, b, . . . . Moreover, linear body c
are the holes a, a, formed in the engaging pieces b, b, ...
Because it is inserted through ......, there is a limit to increasing its diameter, and therefore there is a limit to increasing its strength. As a result, the repeated lifting and lowering of the window glass e causes the linear body c to become fatigued and easily break, resulting in a problem of poor durability.

Therefore, the present invention prevents fatigue of the linear body of the drive cable by preventing the force that tends to lower the window glass from being applied to the linear body after the window glass reaches the lowering limit point, thereby preventing fatigue of the linear body. This drive cable is designed to prevent the linear body from breaking and extend the life of the drive cable, and is made up of a large number of spherical, bead-shaped, etc. engaging pieces connected by flexible linear bodies. a cable guide for slidably guiding said drive cable over at least a vertical section; a sprocket wheel rotated manually or by a suitable power source and engaged with said drive cable bridge; and a drive cable. a coupling member fixed to a portion of the cable guide that moves up and down along the cable guide and supporting the window glass, the engagement member being engaged with the sprocket wheel when the window glass reaches its lowering limit point; The coupling device is characterized in that at least one of the bridge bodies to the engagement bridge body below the portion of the coupling device fixed to the drive cable and the coupling device are integrally or integrally connected to each other. do.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The vehicle window glass elevating device of the present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 2 to 4 show an example of an embodiment of the vehicle window glass elevating device of the present invention, in which a housing 1 is fixed to a frame 2 of an automobile door. A substantially L-shaped passage 3 is formed in the housing 1, and a recess 4 is formed in contact with a bent portion of the passage 3, and a sprocket wheel 5 is rotated in the recess 4. Possibly located. 6, 6, ...... is the sprocket wheel 5
This is a hemispherical engagement recess formed on the outer peripheral surface of the holder.
7 is a drive unit fixed to the door frame 2;
It consists of a motor 8 and a deceleration and direction change section 9, and its output shaft 10 is connected to the sprocket wheel 5, so that the sprocket wheel 5 can be rotated by rotating the motor 8. The sprocket wheel 5 can also be rotated by a handle (not shown), and either the driving force of the motor 8 or the manual driving force by the handle can be selected as desired.

Reference numeral 11 designates pipe-shaped guides, including a vertical guide 11v extending substantially vertically and a horizontal guide 11h extending substantially horizontally. A notch groove 12 extending along the axial direction is formed on one side of the vertical guide 11v. The vertical guide 11v has its lower end fitted into the upper end opening of the L-shaped passage 3 formed in the housing 1, and its upper end fitted into the upper end opening of the L-shaped passage 3 formed in the housing 1.
3 to the door frame 2. Further, the horizontal guide 11h is fitted into the side opening of the L-shaped passage 3.

Reference numeral 14 denotes a drive cable, which is formed mainly of a large number of spherical engaging pieces 15, 15, . . . and a flexible linear body 16. The spherical engagement piece 15 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 16 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 embodiment. A large number of spherical pieces 15, 15, .
The holes 17, 17, . . . are inserted through the holes 17, 17, . ), the drive cable 14 is formed.

Reference numeral 18 denotes a connector for connecting the drive cable 14 and the window glass 19, and a connecting bracket 20 and the support 2.
Consists of 1. The main part of the connecting bracket 20 has a substantially cylindrical shape, and a connecting piece 22 is formed protrudingly from the side surface of the cylindrical main part to project outside the guide 11v through the notched groove 12 of the guide 11v. A cylindrical fitting protrusion 23 is formed protruding from the end surface of 22 . Then, the upper end of the linear body 16 of the drive cable 14 is inserted into the connecting bracket 20, and a stopper 24 is fixed to the upper end of the linear body 16 protruding from the connecting bracket 20 to prevent the connecting bracket 20 from coming off. This couples the coupling bracket 20 to the upper end of the drive cable 14. The support body 21 has two walls 25, 2 on one side that are parallel to each other and extend in the vertical direction.
5 is formed, and a circular fitting recess 26 into which the fitting protrusion 23 of the coupling piece 22 fits is formed in the intermediate portion of the two walls 25, 25. Further, a support groove 27 is formed in the support body 21 and extends in the front-rear direction of the vehicle body and opens upward, and approximately the center of the lower edge of the window glass 19 is fitted and fixed into the support groove 27.
Then, the fitting protrusion 23 formed on the connecting piece 22 of the connecting bracket 20 is inserted into the fitting recess 26 of the support body 21.
The connecting bracket 20 and the support 21 are connected by fitting into the connecting member 18.
is formed.

The connecting bracket 20 of the connecting tool 18 and a plurality of, for example, five engaging pieces 15a connected to the lower side thereof,
15a, 15a, 15a, and 15a are each integrally formed of a flexible material such as synthetic rubber or soft synthetic resin.

Reference numeral 28 denotes a window frame, which has a U-shaped cross-sectional shape and is formed so that the peripheral edge of the window glass 19 excluding the lower edge is fitted into it, and its front edge structure 28f
The trailing edge structure 28r extends downward to guide the window glass 19. 29,2
Reference numeral 9 denotes a stopper fixed to the door frame 2, and is provided at a position where it comes into contact with the lower edge of the window glass 19 when the window glass 19 is lowered and its entirety enters the inside of the door frame 2. The position where the window glass 19 comes into contact with the stoppers 29, 29 becomes the lowering limit point of the window glass 19. Then, when the window glass 19 reaches the lowering limit point, at least one of the plurality of engagement pieces 15, 15, . It is designed to be in this state.

In the vehicle window glass elevating device as described above, when the sprocket wheel 5 is rotated, for example, by the drive of the motor 8, the drive cable 14 is moved along the guide 11 and the passage 3 accordingly.
You will be moving inside. That is, in FIG. 2, when the sprocket wheel 5 is rotated counterclockwise, the drive cable 14 moves in the direction of the solid arrow. Therefore, the drive cable 14 moves upward in the vertical guide 11v, and the window glass 19 connected thereto via the connector 18 is raised. Also, when the sprocket wheel 5 is rotated clockwise, the drive cable 14 moves in the direction of the dotted arrow. Therefore, the drive cable 14 moves downward in the vertical guide 11v, and the window glass 19 is therefore lowered.
When the window glass 19 comes into contact with the stoppers 29, 29, further lowering of the window glass 19 is prevented, and at the same time, the connection bracket 2
A plurality of engaging pieces 15, 1 integrally connected to
At least one of the sprocket wheels 15a engages with the sprocket wheel 5. Therefore, the force that is subsequently applied from the sprocket wheel 5 to the connection bracket 20 to lower the window glass 19 is due to the force exerted by the engagement pieces 5a, 5a, which are integrally connected to the connection bracket 20,...
It is transmitted through the linear body 16 and has almost no effect on the linear body 16.

As described above, in the vehicle window glass elevating device of the present invention, when the window glass reaches the lowering limit point, the connecting bracket is moved from at least one of the engaging pieces engaged with the sprocket wheel. The lower engaging piece and the connecting bracket are integrally or integrally connected to each other. Therefore, when the window glass is lowered, even after the window glass reaches its lowering limit, the force applied to the window glass is transferred from the sprocket to the connection bracket via the engagement piece that is integrally or integrally connected with the connection bracket. The force is transmitted through the linear body, and the force does not act on the linear body. Therefore, there is no fear that the linear body will become fatigued and easily cut by the force applied to the window glass after it reaches its lowering limit, and the life of the drive cable can be extended.

In the lifting device of the present invention shown in FIGS. 2 to 4, there is a risk that dust may enter the vertical guide 11v through the cutout groove 12 or the upper end opening of the vertical guide 11v, and a large amount of dust may accumulate there. Yes, and the vertical guide 11v due to the dust
There is a risk that smooth movement of the drive cable 14 and the connection bracket 20 within the housing may be hindered. 5 and 6 show a modified example of the guide of the lifting device of the present invention, which is designed to prevent dust from entering into the guide.

30 is a vertical guide formed by cutting a part of the side surface of a cylindrical pipe body in the axial direction to form a notched groove 31, and both ends along the axial direction are bent in opposite directions to form engaging pieces 32, 32. By doing so, the cross section is formed into a substantially Ω-shape. Reference numeral 33 denotes a cover formed of a material having appropriate elasticity, and engaging pieces 34, 34 are formed by folding back both edges along the longitudinal direction, so that the cross-sectional shape is approximately square. is formed. Reference numeral 35 denotes a cut formed along the longitudinal direction of the cover 33 at substantially the center in the width direction, and is provided in a portion of the cover 33 excluding the upper and lower ends. This cover 33 has its engaging pieces 34, 3
4 is engaged with the engaging pieces 34, 34 of the vertical guide 30, thereby being engaged with the vertical guide 30 so as to close the cutout groove 31. Then, the connecting piece 37 formed on the connecting bracket 36 inside the guide 30 is projected out of the guide 30 through the cut 35 of the cover 33 that closes the cut groove 31. 38 is guide 30
This is a cap that closes the upper opening of the.

In such a vertical guide 30, the notch groove 31 and the upper end opening are connected to the cover 33 and the cap 3.
8, there is no risk of dust entering the vertical guide 30. Therefore, according to this modification, it is possible to eliminate the possibility that the smooth movement of the drive cable and the connection bracket 36 within the vertical guide 30 will be hindered.

[Brief explanation of the drawing]

FIG. 1 is an overall exploded perspective view showing an example of a conventional vehicle window glass lifting device, and FIGS. 2 to 4 show examples of implementation of the vehicle window glass lifting device of the present invention. Figure 2 is a side view of the whole, Figure 3 is an exploded perspective view of the whole with a part cut away, Figure 4 is an enlarged sectional view of the main parts when the window glass has reached its lowering limit, Figures 5 and 3. FIG. 6 shows a modification of the guide of the vehicle window glass lifting device of the present invention, FIG. 5 is a perspective view showing the main part, and FIG. 6 is a side view showing the main part. Explanation of symbols, 5... Sprocket wheel, 7
... Drive source, 11 ... Cable guide, 14 ...
Drive cable, 15... Engaging piece body, 16... Linear body, 18... Connector, 19... Window glass.

Claims (1)

[Scope of Claims] 1. A drive cable comprising a large number of spherical, bead-shaped, etc. engaging pieces connected by flexible linear bodies, and at least a vertical section of the drive cable that is slidable. a cable guide for guiding and a sprocket wheel rotated manually or by a suitable power source and engaged with the drive cable bridge;
a connector fixed to a portion of the drive cable that moves up and down along the cable guide and supporting the window glass, and engaged with the sprocket wheel when the window glass reaches its lowering limit point. At least one of the engaging pieces to the lower engaging piece of the portion of the connecting device fixed to the drive cable and the connecting device are integrally or integrally connected to each other. Features: Lifting device for vehicle window glass. 2. Claim No. 2, characterized in that, in the connector, the part fixed to the drive cable and the part supporting the window glass are formed separately, and the two parts are connected to each other by an appropriate means. The device for lifting and lowering a vehicle window glass according to item 1.