JPH0814220B2 - Window glass lifting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a pair of front and rear guide rails provided along the ascending / descending path of a window glass, a geared cable is routed along the guide rails, and is slidably fitted to the guide rails. More particularly, the present invention relates to a windowpane elevating and lowering device that is formed by fixing a carrier plate to which laminated window glass is fixed to the geared cable, and more particularly to a device to be mounted on a door of a hard top vehicle.

[0002]

2. Description of the Related Art As a conventional window glass lifting device, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 60-107776. That is, the window glass is supported by the front and rear frame portions of the door so as to be able to move up and down, the wire guide tube is extended along the upper frame portion of the door, and the front end portion of the wire guide tube is moved along the elevating trajectory of the front edge of the window glass. And a rear end portion of the wire guide tube extends upward along the ascending / descending trajectory of the trailing edge of the window glass. The wire is movably inserted in the wire guide tube, and the front end portion and the rear end portion of the wire are connected to the window glass via the slider bracket. Generally, the window glass of a hard top vehicle has a center of gravity toward the rear side, and when raising the window glass, it is necessary to raise the rear portion of the window glass with a large lift force.

[0003]

However, in such a conventional window glass lifting device, since the wire guide tube extends along the upper frame portion of the door, for example,
In order to move the window glass up and down without interfering with the wire guide tube, it is necessary to set the up-and-down locus of the window glass, which limits the layout of the elevating device and makes it impossible to make the door thin. In addition, since the rear end of the wire is pushed up to raise the rear end of the window glass, a large axial compressive load acts on the rear end of the wire, which causes the wire to buckle, causing the rear end of the window glass to rise. However, there is a problem that it may cause malfunction. The present invention has been made in view of the above-mentioned conventional problems, so that a layout can be freely set, a door can be made thin, and a window glass can be smoothly raised. It is an object of the present invention to provide a lifting device for a window glass.

[0004]

The gist of achieving the above object is to provide a pair of front and rear guide rails along the ascending / descending path of a window glass, and arrange a geared cable along the guide rails. In a window glass lifting device, which is formed by fixing a carrier plate slidably fitted to the guide rail and fixed to the window glass to the geared cable, the geared cable is arranged in a substantially u shape. , Bend the geared cable along the front guide rail near the lower end of the front guide rail and extend backward, and bend the geared cable extended rearward near the lower end of the rear guide rail and upward. The curved cable that is extended to the upper side and curved to the lower side along the rear guide rail, and the portion along the front guide rail. In a lifting device for a window glass, which is characterized in that the carrier plate is fixed to the geared cable at a portion along the rear guide rail, and a drive unit for driving the geared cable is provided. A pair of front and rear guide rails are installed along the vertical path of
A window glass lifting device, in which a geared cable is routed along the guide rail, a carrier plate slidably fitted to the guide rail and fixed to the window glass is fixed to the geared cable, U is the base frame
It is shaped like a letter and is composed of a front frame part, a lower frame part, and a rear frame part, and a front guide rail is fixed to the front frame part and a rear guide rail is fixed to the rear frame part. A guide groove for guiding and holding the geared cable is formed in the front frame portion, and is formed in the front frame portion for guiding the geared cable in the vertical direction, and also in the rear frame portion to guide the geared cable in the vertical direction. A rear guide portion for guiding and a portion formed from the lower frame portion to the rear frame portion, continuous with a lower end of the front guide portion, curved and extending rearward, and curved near a lower end portion of the rear guide rail. Consists of a relay guide portion extending upward and curved at a position extending upward and continuing to the upper end of the rear guide portion. And a drive unit that drives the geared cable by fixing the carrier plate to the geared cable at a portion guided and held by the front guide portion and a portion guided and held by the rear guide portion. It exists in the lifting device for the window glass.

[0005]

[Function] Since the geared cable is arranged in a substantially u shape,
The degree of freedom in layout is greatly increased, as the window glass can be fully stored in the large space surrounded by the geared cables.

When the drive unit drives the geared cable to raise the window glass, the front end of the geared cable is pushed up along the front guide rail,
The rear end of the geared cable is pulled up along the rear guide rail. Since the rear end of the geared cable on the side requiring a larger lift force is pulled up, buckling load does not act on the rear end of the geared cable. Although the front end of the geared cable is pushed up, the front part of the window glass does not require a large lift force compared to the rear part, so a small axial compression load is generated at the front end of the geared cable, and the front end of the geared cable is There is no risk of buckling of the part.

When both ends of the geared cable are raised,
The carrier plate slides upwards along both guide rails, and the window glass rises smoothly.

When the drive portion drives the geared cable to lower the window glass, the front end portion of the geared cable is pulled down along the front guide rail,
The rear end of the geared cable is pushed down along the rear guide rail. Since the rear end of the geared cable is pushed down, a small axial compressive load does not act on the rear end of the geared cable to cause buckling. Further, since the front end of the geared cable is in the direction of being pulled down, buckling does not occur at the front end of the geared cable. When both ends of the geared cable descend, the carrier plate slides downward along both guide rails, and the window glass smoothly descends.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIGS. 1 to 4, the window glass lifting device 10a is installed in the door body D, and has a base frame 10 which is the body of the window glass lifting device 10a. The base frame 10 is composed of a front frame portion 11, a rear frame portion 12, and a lower frame portion 13 by combining members in a substantially U shape.

A front guide rail 20 is fixed to the front frame portion 11 and a rear frame portion 12 is provided.
A guide rail 30 on the rear side is fixedly installed in the. The guide rail 20 and the rear guide rail 30 have substantially the same structure.

Guide grooves for guiding and holding the geared cable 40 are formed in the base frame 10, the front guide rail 20 and the rear guide rail 30. The guide groove includes a front guide portion 21 provided on the front guide rail 20 and a rear guide rail 30.
Rear guide portion 31 and the lower frame portion 13 provided in the
And a relay guide portion 14 provided in the.

The front guide portion 21 is formed in the front guide rail 20 in a substantially C-shaped cross section with the opening facing the outside of the vehicle. The front guide portion 21 has a front end portion 41 of the geared cable 40 in the vertical direction. It is inserted so that it can be guided to. The front guide portion 21 is provided on the front frame portion 11.
A fitting groove 15 into which is fitted is formed.

Similarly, as shown in FIGS. 5 and 6, the rear guide portion 31 is formed in the rear guide rail 30 in a substantially C-shaped cross section with the opening facing the outside of the vehicle. A rear end portion 42 of the geared cable 40 is inserted so as to be vertically guided. A fitting groove 16 into which the rear guide portion 31 is fitted is formed in the rear frame portion 12.

As shown in FIG. 7, the relay guide portion 14 is formed in a substantially U-shaped cross section from the lower frame portion 13 to the rear frame portion 12, and the relay guide portion 14 is continuous with the lower end of the front guide portion 21 and is curved. And a front relay guide portion 14a that extends rearward and curves near the lower end portion 32 of the rear guide rail 30 and extends upward, and an upper end of the rear guide portion 31 that extends further upward and bends at a position that extends upward. Part 3
3 and a relay guide portion 14b on the rear side, which is continuous with 3. The cover member 50 covers the groove opening of the front relay guide portion 14a, and the cover member 51 covers the groove opening of the rear relay guide portion 14b.

The connecting bracket 4 is connected to the front end portion 41 of the geared cable 40 and the rear end portion 42 of the geared cable 40.
3 are fixedly connected to each other, and carrier plates 60 and 60a are fixedly attached to the connecting brackets 43, respectively.
Both carrier plates 60 and 60a have substantially the same configuration, and the carrier plate 60 will be described below as a representative and will be replaced with the description of the carrier plate 60a. In the carrier plate 60, roller members 63 are pivotally attached to both side flange portions 62 of the base surface portion 61. Guide grooves 17 are formed on both sides of the fitting groove 15 in the front frame portion 11 along the fitting groove 15, and the guide groove 17 and the guide rail 20 are formed.
A guide groove for the roller member is formed from the side edge 27 of the roller member 63, and the roller member 63 is rollably fitted in the guide groove for the roller member.

A ball joint member 64 is fixed to the base surface portion 61 of the carrier plate 60, and a ball joint member 64 is fixed to the carrier plate 60a side. Both ball joint members 64 are connected to each other in a state of being fitted to both ends of the main channel member 70. A window glass 80 is fixed to the main channel member 70.

An insertion space 52 is provided between the cover member 50 and the cover member 51, and a drive portion 90 is provided so as to fill the insertion space 52. Drive unit 90
Is composed of a drive motor 91 and a speed reduction mechanism 92, and an output gear 93 of the speed reduction mechanism 92 meshes with the geared cable 40 inserted into the relay guide portion 14.

Next, the operation will be described.

Since the geared cable 40 is arranged in a substantially u shape, it is possible to accommodate, for example, a reinforcing bar member extending in a substantially horizontal direction in a large space surrounded by the geared cable 40. A flexible layout is possible, and the thickness of the door does not increase due to the accommodated members, and the door can be made thin.

When the drive motor 91 is started to raise the window glass 80, the output gear 93 of the reduction mechanism 92 rotates in the forward direction and meshes with the geared cable 40.
Moves downward. Thereby, the geared cable 40
The front end portion 41 of the cable is pushed up along the front guide portion 21 of the front guide rail 20, and the geared cable 40
The rear end portion 42 is pulled up along the rear guide portion 31 of the rear guide rail 30.

When the front end portion 41 of the geared cable 40 is pushed up and the rear end portion 42 of the geared cable 40 is pulled up, the roller member 63 is guided by the roller member 63 via the connecting brackets 43 to the carrier plates 60, 60a. The carrier plates 60, 6 are moved upward in the groove.
0a moves upward along both guide rails 20 and 30, and the window glass 80 rises through the ball joint member 64 to the main channel member 70.

The center of gravity of the window glass 80 is closer to the rear portion, and a larger lift force is required on the rear side than the front portion of the window glass 80. As described above, since the rear end portion 42 of the geared cable 40 is pulled up when the window glass 80 is raised, the rear end portion 42 of the geared cable 40 is pulled.
Buckling does not occur. Also, the geared cable 4
Although the front end portion 41 of 0 is pushed up, since a large lift force is not required in the front portion of the window glass 80, a small axial compressive load acts on the front end portion of the geared cable 40, which does not cause buckling. Therefore, there is no risk of malfunction.

When the drive motor 91 is started to lower the window glass 80, the output gear 93 rotates in the reverse direction, and the geared cable 40 in the portion meshing with the output gear 93 moves upward. Thereby, the front end portion 41 of the geared cable 40 is
Is pulled down along the front guide portion 21 of the front guide rail 20, and the rear end portion 42 of the geared cable 40 is
Is pushed down along the rear guide portion 31 of the rear guide rail 30.

At this time, since the rear end portion 42 of the geared cable 40 is pushed down, a small axial compression load acts on the rear end portion 42 of the geared cable 40,
There is no risk of buckling. Also, the geared cable 4
Since the front end portion 41 of 0 is in the pull-down direction, buckling does not occur in the front end portion 41 of the geared cable 40.

When the front end portion 41 and the rear end portion 42 of the geared cable 40 are lowered, the roller member 63 moves downward in the guide groove for the roller member through the connecting brackets 43 to the carrier plates 60, 60a. The carrier plates 60 and 60a move downward along both guide rails 20 and 30, respectively, and the ball joint member 64 is moved.
~ The window glass 80 descends via the main channel member 70.

Window glass lifting device 1 according to the above-described embodiment
According to No. 0a, the output gear 93 of the drive unit 90 is engaged with the middle portion of the geared cable 40 in the longitudinal direction, so that the front end portion 41 of the geared cable 40 has the window glass 80.
When pushing up the front part of the geared cable 40 and pushing down the rear part of the window glass 80 at the rear end 42 of the geared cable 40, the sliding resistance acting on the geared cable 40 becomes almost equal and small, and the window glass can be smoothly moved up and down. it can.

[0027]

According to the window glass raising / lowering device of the present invention, since the geared cable is arranged in a substantially U shape, for example, a bar member for reinforcing the door is passed through the space surrounded by the geared cable. , Other components can be accommodated, the degree of freedom in layout can be increased, the door can be made thinner, and the rear end of the geared cable can be pulled up to raise the rear end of the window glass. When ascending and descending a general window glass near the rear end side, the axial compressive load acting on the rear end of the geared cable is reduced, buckling does not occur, and the window glass is raised. The window glass can be smoothly raised without causing a malfunction.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a window glass lifting device showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a mounted state of a window glass lifting device according to an embodiment of the present invention.

FIG. 3 is a front view of a window glass lifting device showing an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a window glass lifting device according to an embodiment of the present invention.

5 is a cross-sectional view taken along the line AA of FIG. 1 showing an embodiment of the present invention.

FIG. 6 is a sectional view taken along line BB of FIG. 1 showing an embodiment of the present invention.

FIG. 7 is a sectional view taken along the line CC of FIG. 1 showing an embodiment of the present invention.

[Explanation of symbols]

 10 ... Base frame 11 ... Front frame part 12 ... Rear frame part 13 ... Lower frame part 14 ... Relay guide part 21 ... Front guide part 31 ... Rear guide part 20 ... Front guide rail 30 ... Rear guide rail 40 ... Geared cable 50, 51 ... Cover member 60, 60a ... Carrier plate 70 ... Main channel member 80 ... Window glass 90 ... Drive unit

Claims (2)

[Claims] 1. A pair of front and rear guide rails are provided along an ascending / descending path of a window glass, a geared cable is routed along the guide rail, and the guide rail is slidably fitted to the window glass so that the window glass is fixed. In a window glass lifting device, in which a carrier plate to be connected is fixed to the geared cable, the geared cable is arranged in a substantially u shape, and the geared cable along the front guide rail is guided to the front guide rail. Bend the cable in the vicinity of the lower end of the guide rail and extend it backward, bend the geared cable in the vicinity of the rear guide rail in the vicinity of the lower end of the guide rail and extend it upward, and then bend the geared cable that extends upward to bend the rear cable. Along the guide rails, extend downwards.The part that is along the front guide rail and the part that is along the rear guide rail are Turbocharger rear plate to consolidate the lifting device of the glazing, characterized in that a said driving unit for driving the geared cable. 2. A pair of front and rear guide rails are provided along an ascending / descending path of the window glass, a geared cable is routed along the guide rail, and the guide glass is slidably fitted to the window glass so that the window glass is fixed. In a windowpane elevating device in which a carrier plate to be connected is fixed to the geared cable, a base frame is formed into a substantially U shape, and is constituted by a front frame portion, a lower frame portion, and a rear frame portion, A front guide rail is fixed to the front frame portion, a rear guide rail is fixed to the rear frame portion, and a guide groove for guiding and holding the geared cable is formed in the front frame portion. A front guide part that guides the cable in the vertical direction and a rear frame part that is also formed in the rear frame part. And a rear guide portion that extends from the lower frame portion to the rear frame portion, is continuous with the lower end of the front guide portion, extends in a curved rearward direction, and extends in the vicinity of the lower end portion of the rear guide rail in a curved upper direction. Is formed of a relay guide portion that extends to the upper end of the rear guide portion and that is curved at a position that extends upward and that is guided and held by the front guide portion and a portion that is guided and held by the rear guide portion. An elevating / lowering device for a window glass, characterized in that the carrier plate is fixed to the geared cable, and a drive unit for driving the geared cable is provided.