JPS628590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel vehicle window glass lifting device. Specifically, it is a lifting device for lifting and lowering a vehicle window glass such as a window glass installed in a car door, and is lightweight and inexpensive.
The object of the present invention is to provide a new vehicle window glass elevating device that operates reliably and can be installed in a narrower width.

For example, an arm-type lifting device using a rotating arm has been used for a long time to lift and lower the window glass of an automobile. However, arm-type lifting devices are heavy and require a large amount of force to move up and down.
It had various drawbacks, such as a complicated structure.
Therefore, in an attempt to solve these drawbacks, a so-called tape-type lifting device as shown in FIGS. 1 to 4 was devised.

First, the conventional tape type lifting device shown in FIGS. 1 to 4 will be explained. A is a tape guide fixed to a car door frame (not shown), b is a flexible tape that is guided by the tape guide a, and tapes are placed along the length of the tape at equal intervals. A large number of engagement holes c, c, ...
... has been drilled. d is a sprocket wheel that is rotatably supported on the door frame and rotated forward and backward manually or by an appropriate drive source, and the pawls e, e, ...... formed on the outer circumferential surface of the sprocket wheel engage the tape b. It meshes with the mating holes c, c, …….
A door glass (not shown) is connected to tape b via a suitable connector. When the sprocket wheel d rotates, the tape b meshed with the sprocket wheel d moves guided by the guide a, and the door glass connected to a part of the tape b moves to a substantially perpendicular part of the guide a. rises along the
Or it will go down.

However, in the conventional elevating device described above, the tape b is fed by the sprocket wheel d that engages with the holes c, c, ... of the tape b. Such a load must be borne only by portions A, A on both sides of the engagement hole c. Therefore, in order to obtain the required strength, the width B and thickness t of tape b must be made very large, which increases the cost of tape b. Furthermore, increasing the tape width B means increasing the thickness of the door, etc., which hinders compactness. Furthermore, the fact that the tape must be perforated is another factor that increases the cost of the tape. Furthermore, the tape b has a hole c,
c, ...... are formed, it is impossible to prevent the tape b from stretching or twisting, and the engagement with the sprocket wheel d cannot be carried out smoothly, resulting in malfunction. There is also a risk.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a new vehicle window glass lifting device that does not have the drawbacks of conventional tape-type vehicle window glass lifting devices. A large number of engaging pieces, such as shapes, are connected by flexible linear bodies, and at least one of both ends of the linear bodies is provided with a spring that presses the pieces toward the center of the linear bodies, and a drive cable having means for preventing overloading of the spring; a cable guide slidably guiding the drive cable in at least a vertical section; It is characterized by consisting of sprocket wheels that fit together, and a connecting member that connects the part of the drive cable that moves up and down along the cable guide and the window glass.

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

FIGS. 5, 6, and 10 show a first embodiment of the vehicle window glass lifting device of the present invention. In this embodiment, the present invention is applied to a device for lifting and lowering a window glass of an automobile door.

Reference numeral 1 denotes a drive cable, which is formed mainly of a large number of spherical engaging pieces 2, 2, . . . and a flexible linear body 3. A hole 4 passing through the center of the spherical piece body 2 is formed. Spherical piece body 2
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 3 may be anything that has low elasticity, but it is preferable to use steel wire, and steel wire is used in this embodiment as well.
This steel wire 3 has a large number of spherical pieces 2,
2, . . . are inserted without interruption in a so-called daisy chain shape (the wire 3 is passed through the holes 4, 4, . . . of the spheres 2, 2, . . .), and the drive cable 1 is formed.

Reference numeral 5 denotes a compression coil spring, which is inserted into one end of the steel wire 3 through which the engaging pieces 2, 2, ...... are inserted, and is connected to a stopper 6 fixed to the end, and the piece 2 at the end. It is compressed between.

5 and 6, the overload prevention means for the compression coil spring 5 is omitted from illustration, and will be enlarged and explained in FIG. 10.

That is, 25, 25 are overload stoppers, which are made of, for example, synthetic resin, and are integrally formed with a disc-shaped base 26 and a sleeve 27 protruding from the center of one surface of the base 26. It consists of The outer diameter of the disc-shaped base 26 is larger than the outer diameter of the coil spring 5, and the outer diameter of the sleeve 27 is smaller than the inner diameter of the coil spring 5. Furthermore, an insertion hole 28 is formed in the base 26 and the sleeve 27, passing through the center thereof.

However, overload stopper 25,2
5, the tips of the sleeves 27, 27 are facing each other, and the sleeves 27, 27 in that state
The coil spring 5 is fitted onto the outside, and then the steel wire 3 is inserted into the insertion holes 28, 28 of each overload stopper 25, 25, and the steel wire 3 protrudes from the overload stopper 25 on the outer end side. A stopper 6 is fixed to the tip of 3.

In the drive cable 1 as described above, even if a strong compressive force is applied to the coil spring 5, the sleeve 2 of the overload stoppers 25, 25
Since the tips of the coil springs 7 and 27 are brought into contact with each other and further compression of the coil spring 5 is prevented, it is possible to prevent an overload from being applied to the coil spring 5.

7 is a housing fixed to the door frame 8, which includes a sprocket wheel storage recess 9 and the recess 9;
A substantially L-shaped passageway 10 is formed in contact with the passageway 10 . Reference numeral 11 denotes a sprocket wheel which is rotatably arranged in the storage recess 9 of the housing 7, and has hemispherical engagement recesses 12, 12,
Many ………… are formed. Reference numeral 13 denotes a drive unit fixed to the door frame 8, which consists of a motor 14 and a deceleration and direction change unit 15, whose output shaft 16 is connected to the sprocket wheel 11, and when the motor 14 rotates, The sprocket wheel 11 can be rotated. Incidentally, the sprocket wheel 11 can also be rotated by a handle (not shown), and either the driving force of a motor or the manual driving force by the handle can be arbitrarily selected.

Reference numeral 17 designates pipe-shaped guides, including a vertical guide 17v extending substantially vertically and a horizontal guide 17h extending substantially horizontally. A notched groove 18 extending along the axial direction is formed on one side of the vertical guide 17v, and the lower end of the vertical guide 17v is inserted into the upper end opening of the L-shaped passage 10 formed in the housing 7. Then, the upper end portion is fixed to the door frame 8 by the mounting bracket 19. The horizontal guide 17h is fitted into the side opening of the L-shaped passage 10 formed in the housing 7.

Therefore, the drive cable 1 has two guides 1
7v, 17h and L-shaped passage 10 of housing 7
The engaging pieces 2, 2, .
2, .

20 is a bracket connected to the upper end of the drive cable 1, and a part thereof (not shown).
The guide 17 passes through the notch groove 18 of the guide 17v.
It extends outside the v and is connected to the connecting member 21.
Two walls 22, 22 extending parallel to each other are formed on one surface of the connecting member 21.
A vertical guide 17v is slidably engaged between 2 and 22. A substantially central portion of the lower edge of the window glass 23 is supported by the other surface of the connecting member 21 .

In the vehicle window glass elevating device as described above, when the sprocket wheel 11 is rotated, the drive cable 1 moves within the guide 17 and the passage 10 accordingly. That is, in FIG. 5, the sprocket wheel 11
When is rotated counterclockwise, the drive cable 1 moves in the direction of the solid arrow. Therefore, the drive cable 1 moves upward in the vertical guide 17v, and the window glass 23 connected thereto via the bracket 20 and the connecting member 21 is raised. Also, when the sprocket wheel 11 is rotated clockwise, the drive cable 1 moves in the direction of the dotted arrow. Therefore, the drive cable 1 moves downward in the vertical guide 17v, and thus
The window glass 23 is lowered.

As described above, in the vehicle window glass elevating device of the present invention, instead of the perforated tape as the intermediate moving member, a large number of engaging pieces are connected by a flexible linear body. Since a cable is used, the strength problems of conventional perforated tapes can be solved, and smooth operation can be expected. Furthermore, since the drive cable of the present invention does not require an extremely large width in a particular direction, the width of the device can be reduced, and therefore, for example, the width of the door frame to which it is attached can also be reduced. can. Furthermore, in the case of the conventional perforated tape type, due to problems with the strength of the tape, conditions regarding the material of the tape were severe and expensive materials had to be used, but the drive cable of the present invention has Since there is no such strength problem from a structural point of view, there are no difficult conditions for selecting materials for the bridge body and the linear body, and they can be made relatively inexpensive. Furthermore, since a spring overload prevention means is installed, even if excessive loads are repeatedly applied to the springs, the springs are less prone to fatigue, providing a highly durable lifting device. can do.

FIGS. 7 and 8 show a second embodiment of the vehicle window glass lifting device of the present invention. This embodiment differs from the first embodiment described above in its drive cable 1a and the sprocket wheel 11a that engages with it, but the other parts are the same as in the first embodiment. The same is true. Therefore, the same parts as in the first embodiment are given the same reference numerals as those in the first embodiment, and detailed explanation thereof will be omitted.

In this second embodiment as well, the spring overload prevention means used in the first embodiment (FIG. 10) is applied, and the explanation thereof will be omitted.

In this embodiment, the engaging pieces 2a, 2a, . . . of the drive cable 1a have a substantially bead shape. The curved inclined surface 24a of the bridge body 2a is formed to have a curve similar to, for example, an involute curve, and when the drive cable 1a is bent into a substantially L-shape, the bridge bodies 2a, 2 on the inner corner side
A valley portion that engages with the involute gear is formed between a and .

As the pieces 2a, 2a, ... are deformed as described above, the sprocket wheel 11a
It is also shaped like an involute gear.

In this second embodiment, the drive cable 1
Since the sprocket wheel 11a and the sprocket wheel 11a are constructed as described above, the meshing efficiency between the sprocket wheel 11a and the drive cable 1a is improved, and the force of a drive source such as a motor is effectively transmitted to the drive cable 1a. The Rukoto.

FIG. 9 also shows a modified example 1b of the drive cable, and as shown in FIG. 9A, this also includes the bridge body 2b,
2b, . . . are formed in an approximate abacus bead shape, and the curved inclined surface 24b is an approximate involute curve,
Furthermore, the sprocket wheel 11b is shaped like an involute gear. Incidentally, if the adjacent surface 2'b of the bridge body 2b is curved as shown in FIG. 9B, there is an advantage that the drive cable 1b can be smoothly bent at the bending portion as shown in FIG. 9A.

Further, the spring overload prevention structure shown in FIG. 10 can also be applied when the coil spring 5 is used at the other end of the drive cable 1. FIG. 11 shows an example of such a case.

In the one shown in FIG. 11, one overload stopper 25 is used, and a sleeve 29 is integrally provided on the outer end surface of the bracket 20. Therefore, the tip of the sleeve 27 of the overload stopper 25 is connected to the bracket 20.
The coil spring 5 is disposed so as to face the tip of the sleeve 29, and in this state, both ends of the coil spring 5 are fitted onto each sleeve 27, 29. after that,
Bracket 20, overload stopper 25
steel wire (not shown here)
is inserted, and its overload stopper 25
A stopper 6 is fixed to the end protruding from.

Even in the case shown in FIG. 11,
The existence of the sleeves 27 and 29 is the reason why the coil spring 5
It is possible to prevent overload from being applied to the coil spring 5 and prevent fatigue of the coil spring 5.

In the embodiments of the present invention described above, the structure is such that the window glass 23 is supported at one point on its lower edge. With such a structure, rotational moment is likely to be applied when the window glass 23 is raised or lowered, and smooth movement of the window glass 23 is inhibited. Therefore, to eliminate such inconvenience,
The means for ensuring smooth movement of the window glass 23 are shown below.

Figures 12 to 14 show an example of such means. First, the whole will be explained with reference to FIG. In addition, illustration of the elevating mechanism is omitted in FIG. 12. A window frame 30 is fixed to the door frame 8. The portion of the window frame 30 that protrudes from the upper edge of the door frame 8 is the window glass 2.
It is formed in a shape that matches the shape of No. 3. A groove is formed inside the window frame 30, and the front and rear edges and the upper edge of the window glass 23 fit into this groove. Then, the rear portion 31 of the window frame 30 is extended downward, and the window glass 23
It is designed to serve as a guide when moving up and down.

As mentioned above, the rear edge of the window glass 23 is guided to rise or fall by the glass guide 31, which also serves as a part of the window frame 30.
The front lower end 32 of the door frame 8 is guided by a glass guide 33 which is separately fixed to the door frame 8. The lower end 32 of the front edge of the window glass 23 is not guided directly by the glass guide 33, but is guided via the anti-swing body 34.

The anti-swing body 34 is made of synthetic resin, and includes a sliding portion 35 and a support portion 36 that are integrally formed. The sliding portion 35 has a certain length in the vertical direction, and a sliding hole 39 is formed by two walls 37 and 38 protruding from both longitudinal edges. One wall 37 has a small protrusion and is straight. The other wall 38 has a holding piece 40 that protrudes larger than the wall 37 and extends perpendicularly from the tip to the one wall 37 . Then, a glass guide 33 is inserted into the sliding hole 39 of this sliding portion 35.
are slidably inserted and engaged.

The support part 36 of the rocking prevention body 34 is formed by two wall bodies 4 formed with an interval corresponding to the thickness of the window glass 23.
1, 41, and a bottom wall 42 integrally formed between the lower edges of these two walls 41, 41, and an insertion hole 43 is formed on one side at corresponding locations on the walls 41, 41 on the other side. A screw hole 44 is formed.
An insertion hole 45 is also formed at the lower end of the front edge of the window glass 23. However, window glass 23
The lower end of the front edge of is inserted between the walls 41, 41 of the support portion 36 until it abuts against the bottom wall 42. and,
Insert the screw 46 into the insertion holes 43 and 45, and
It is screwed into the screw hole 44. As a result, the anti-swing body 34 and the window glass 23 are joined together.

Therefore, the lower end of the front edge of the window glass 23 is guided to the glass guide 33 via the rocking prevention body 34, so even if a rotational moment is applied, smooth upward or downward movement will not be hindered. There is no.

FIGS. 15 to 17 show other examples of means for preventing the window glass 23 from swinging and ensuring its smooth raising or lowering.

The glass guide 47 that guides the lower end of the front edge of the window glass 23 has a groove 48 that opens toward the window glass 23, and the front ends of the walls 49, 49 forming the groove 47 are The engaging edges 50, 50 are formed by being bent toward opposite sides.

51 is a rocking prevention body, which is similar to the rocking prevention body 34.
A support part 52 similar to the support part 36 in FIG.
Projections 53 and 55 are formed on both sides of the front edge of the support portion 52, and portions of the projections 53 and 53 are slidably engaged in the groove 48 of the glass guide 47.

In this way, the lower end of the front edge of the window glass 23 is smoothly guided along the glass guide 47 via the rocking preventer 51.

FIGS. 18 and 19 also show examples of means for smoothly raising or lowering the window glass 23.

This moves the rear edge of the window glass 23 to the glass guide 3.
This was applied to allow smooth sliding along 1.

A groove 54 that opens toward the window glass 23 is formed in the glass guide 31, and the front ends of walls 55, 55 forming the groove 54 are bent toward opposite sides to form engaging edges 56, 56. is formed.

57 is a slider made of synthetic resin,
A groove 58 is formed in which the window glass 23 is received in a clamping manner, and the edge of the window glass 23 is inserted into the groove 58 and fixed by an appropriate means such as screwing.
The slider 57 has two protrusions 5 that protrude laterally.
9, 59 are formed, and these protrusions 59, 59
is slidably inserted into and engaged with the groove 54 of the glass guide 31.

As a result, the rear edge of the window glass 23 is guided to the glass guide 31 via the slider 57. Incidentally, such a slider 57 is preferably provided not only at the upper part of the rear edge of the window glass 23 but also at the lower part thereof, and furthermore, when used in conjunction with the means shown in FIGS. 12 to 17, it is possible to The effect of suppressing the swinging motion and ensuring smooth upward or downward movement becomes even more remarkable.

[Brief explanation of the drawing]

Figures 1 to 4 show an example of a conventional vehicle window glass lifting device. Figure 1 is an overall side view, Figure 2 is an exploded perspective view of the main parts, and Figure 3 is an enlarged view of the perforated tape. 4 shows an enlarged side view of the perforated tape, FIGS. 5 and 6 show a first embodiment of the vehicle window glass elevating device of the present invention, and FIG. 5 shows an overall side view, and FIG. Fig. 6 is an exploded perspective view of the whole with a part cut away, and Figs. 7 and 8 show another embodiment of the vehicle window glass elevating device of the present invention, and Fig. 7 shows a part cut away. Figure 8 is an enlarged side view of a part of the drive cable, Figure 9 shows a modified example of the drive cable, Figure A is a side view of the main part, and Figure B is an exploded perspective view of the whole.
The figure is a side view showing a modified example of the bridge body, FIG. 10 is a longitudinal side view showing an example of the spring overload prevention means, and FIG. 11 is a longitudinal side view showing another example of the spring overload prevention means. , FIGS. 12 to 14 show an example of means for smoothly guiding the window glass,
Fig. 12 is a schematic side view of the whole, Fig. 13 is an enlarged side view of the main part, Fig. 14 is an enlarged exploded perspective view of the main part,
15 to 17 show another example of means for smoothly guiding the window glass, FIG. 15 is a side view of the main part, FIG. 16 is an enlarged exploded perspective view of the main part, and FIG. 17 is the main part. FIGS. 18 and 19 also show another example of means for smoothly guiding the window glass, FIG. 18 is an exploded perspective view of the main part, and FIG. 19 is a cross-sectional plan view of the main part. It is. Explanation of symbols, 1, 1a, 1b... Drive cable, 3... Linear body, 5... Spring, 11, 1
1a, 11b...Sprocket wheel, 17v
... Cable guide, 21 ... Connection member, 23 ...
... Window glass, 25 ... Overload prevention means, 31 ...
First glass guide, 33... second glass guide, 34... rocking prevention body, 47... second glass guide, 51... rocking prevention body.

Claims (1)

[Scope of Claims] 1. A plurality of spherical, abacus bead-shaped, etc. engaging pieces are connected by a flexible linear body, and the piece is attached to at least one of the ends of the linear body at the center of the linear body. a drive cable provided with a spring pressing towards the spring and having means for preventing overloading of the spring; a cable guide slidably guiding the drive cable in at least a vertical section; and a manual or suitable power source. A sprocket wheel that is rotated by a sprocket wheel and engaged with a piece of the drive cable, and a connecting member that connects a portion of the drive cable that moves up and down along the cable guide and the window glass. Lifting device for vehicle window glass. 2. A window glass whose front edge and rear edge are not parallel and whose width in the front-rear direction is narrower at the top, and a first glass guide that guides one of the two edges of the window glass; a second glass guide for guiding a lower end of the other edge of the window glass; and a rocker that slidably engages with the second glass guide and supports the lower end of the other edge of the window glass. A movement prevention body and a plurality of flexible linear bodies are connected to each other by a plurality of flexible linear bodies, and the pieces are oriented toward the center of the linear bodies at least at one of both ends of the linear bodies. a drive cable having a spring for pushing the drive cable and having means for preventing overloading of the spring; a cable guide for slidably guiding the drive cable in at least a vertical section; A sprocket wheel that is engaged with a piece of the drive cable, and a connecting member that connects a portion of the drive cable that moves up and down along the cable guide and a window glass. Window glass lifting device.