JPH0324953B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a window glass lifting device that is supported so as to be able to rise and fall via a roller unit on a guide rail fixed to a mounting portion.

"Prior Art" A conventional window glass lifting device is disclosed in Japanese Patent Publication No. 50-20327, for example.

That is, the publication describes that the ends of a guide plate fixed to the window glass are held between guide channels, and that approximately V is formed on both sides of the guide channel.
grooves are formed in the same way on both sides of the end of the guide plate, and rollers are interposed between the ends of the guide plate and the side pieces of the guide channel, and these rollers What fits into the groove is shown.

``Problems to be Solved by the Invention'' However, in such a conventional window glass lifting device, the end of the guide plate and the guide channel are slidably engaged with each other via rollers, so that there is no rattling. Although it has a good structure, the interposed rollers fit into all the grooves, so there is no escape in any direction, and misalignment between the grooves can cause problems. There was a problem in that the rollers could be twisted and the smoothness of the operation could be impaired, and that manufacturing costs would increase in order to improve precision and produce a product with no misalignment.

The present invention has been made by focusing on such conventional problems, and although the window glass is raised and lowered using rollers, it has a certain amount of clearance, and even with this clearance, there is no backlash. It is an object of the present invention to provide a device for lifting and lowering a window glass that can smoothly raise and lower the window glass without causing any sticking.

``Means for Solving the Problems'' The gist of the present invention for achieving such an object is to provide a device that is supported so as to be movable up and down via a roller unit on a channel-shaped guide rail fixedly installed at the mounting site. In the window glass lifting device, one side wall of the guide rail is formed with a groove having a substantially V-shaped cross section, and the other side wall is formed in a planar shape,
The window glass lifting device is characterized in that the roller unit includes a roller that slides in contact with a groove in one side wall of the guide rail, and a roller that slides in contact with a planar side wall.

``Function'' However, since one side wall of the guide rail is formed in a flat shape, even if the roller moves a little on that surface, it will not be distorted, and the roller unit can move smoothly. This is what I did.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

As shown in FIGS. 2 to 4, the elevating device 10 is attached to the door A and is for elevating and lowering the window glass A1.

The lifting device 10 is located on both sides B1, B1 of the plate B.
A pair of mutually parallel guide rails 2, which are fixed to the front and rear along the up and down direction of the window glass A1.
0 and 20 are fixedly disposed on the door A via the plate B, and a cable 11 having an operating section parallel to one guide rail 20 is spanned between the upper and lower guide pulleys 12, 12 and the drive unit 13. The driving part 13 includes a driving pulley 13.
a, a drive motor 13b.

As can be seen in Figure 1, the guide rails 20, 2
0 has a channel shape, one side wall 21 is formed with a groove 22 having a substantially V-shaped cross section, and the other side wall 23 is formed in a planar shape.

Furthermore, as can be seen in FIGS. 5 to 7, a roller unit 30 is slidably fitted onto the guide rail 20.

The roller unit 30 is a window glass A1.
Rollers 32, 32 with convex outer peripheries are pivotally supported at the upper and lower ends between the roller support parts 31a, 31b of the carrier plate 31 fixed to the carrier plate 31, and a flat roller 33 is installed between the rollers 32, 32. .

The outer peripheries of the rollers 32, 32 are in sliding contact with the V-shaped groove 22 of the side wall 21 of the guide rail 20 so as to be able to roll.

The flat roller 33 is in rolling and sliding contact with the side wall 23, and the base end of the swing lever 35 is pivoted between the roller support parts 31a and 31b of the carrier plate 31 via a pivot 34. At the end, the pivot 34
It is pivotally supported by an eccentric shaft 36 that is slightly eccentric with respect to the main body. The swing lever 35 is connected to the carrier plate 3
1 is biased clockwise in FIG. 6 by a spring 37 tensioned between the flat roller 33 and the side wall 23. As a result, the roller unit 30 is slidably fitted to the guide rail 20.

As can be seen in FIG. 2, the roller units 30, 30 fitted to both guide rails 20, 20 are
Carrier plate 3 of one roller unit 30
The front part of the window glass A1 is fixed to one support piece 31c, and the rear part of the window glass A1 is fixed to the support piece 31c of the carrier plate 31 of the other roller unit 30.

A drive connection plate 14 is integrally fixed to the support piece 31c of the carrier plate 31 to which the rear part of the window glass A1 is fixed.
is extended, and a trunnion pin 15 is attached to the connecting end 15.
a, 15a are attached to the top and bottom, the upper trunnion pin 15a is connected to the end 11a of the cable 11 extending from above, and the lower trunnion pin 15a is connected to the cable 11 extending from below.
The ends 11b of the two are connected to each other.

In the window glass lifting device having the above configuration, when the drive motor 13b of the drive unit 13 is operated, the drive pulley 13a rotates and the cable 11 is moved vertically, so that the connecting end 15 connected to the cable 11 is The drive connection plate 14 and the carrier plate 31, which are raised and lowered and are integral with the connection end 15, are also raised and lowered.
Thereby, the window glass A1 is raised and lowered and opened and closed.

When the window glass A1 is raised and lowered and opened and closed, the roller units 30, 30 fitted to the guide rails 20, 20 are guided and raised and lowered, and the plane roller 33 moves against the side wall 23 due to the elastic force of the spring 37.
Since the roller 32 and the flat roller 33 are urged toward each other in the direction of width expansion, the roller 32 fits into the groove 22 and the side wall 21
The flat roller 33 is pressed against the side wall 23 .

The pivot shaft 34 and the eccentric shaft 3 that pivot the swing lever 35
The biasing force of the spring 37 is increased by the lever action caused by the deviation from the plane roller 33, and the flat roller 33 is strongly pressed against the side wall 23. Therefore, even if there is an error in the direction in which the groove 22 moves away from the side wall 23, , due to the biasing force of the spring 37, the roller unit 30 moves along the guide rail 2 without wobbling via the roller 32 and the flat roller 33.
0 is fitted.

The groove 22 is provided on one side wall 21, and the other side wall 23 has no groove and is flat, so even if the groove 22 is parallel to the side wall 23 and has an error, the flat roller 33 will not move the side wall 23. There is no problem in just moving on the surface of the guide rail 20, and this is a relief in achieving dimensional accuracy of the guide rail 20 itself.

In addition, as shown in Fig. 1, although the parallelism or spacing of both guide rails 20, 20 is correct in Fig. 1a, if there is an error in the parallelism or spacing, it will be shown in Fig. 1b. As shown, the roller unit 30 is generally laterally offset relative to the guide rail 20 and the rollers 32 are offset from the center of the groove 22.

In that case, the flat roller 33 only moves on the surface of the side wall 23, but the roller 32 is pushed by one surface of the groove 22 and comes relatively close to the flat roller 33.
Therefore, the biasing force of the spring 37 becomes stronger by that amount, and the operation becomes somewhat stiffer. However, the side wall 23
is flat, so the rollers 32, 32 are connected from one side.
If the side wall 23 were provided with a groove, the amount of proximity would be doubled, and the biasing force would become very strong.Compared to this, the stiffness of the operation is considerably suppressed. It won't be much of a problem.

``Effects of the Invention'' According to the window glass lifting device according to the present invention, when the window glass is supported in a channel-shaped guide rail via a roller unit so as to be able to rise and fall, a large clearance is provided, and the accuracy of the guide rail itself is improved. Since there is a groove on only one side wall of the roller, problems caused by parallelism can be prevented, and even when guide rails are installed in parallel, deviation of the roller can be kept to a minimum. Therefore, there are many gaps in the assembly accuracy of the device itself and the assembly accuracy of the device, and even if the accuracy is reduced and the cost is reduced, the lifting device operates smoothly without becoming stiff or rattling.

[Brief explanation of drawings]

The figure shows one embodiment of the present invention, and FIG. 1 is a horizontal sectional view of the lifting device in an installed state,
Figure 1a shows a state in which the assembly accuracy is good, Figure 1b shows a state in which it is not good, Figure 2 is a front view seen through the door with the lifting device installed, and Figure 3 is the same as Figure 2. - Line sectional view, Figure 4 is a line sectional view - Figure 2, Figure 5 is a front view near the roller unit, Figure 6 is a
The figure is Fig. 5 - Line sectional view, Fig. 7 is Fig. 5 -
FIG. A...Door, A1...Window glass, 10
... Lifting device, 11 ... Cable, 30 ... Roller unit, 31 ... Carrier plate, 32 ...
...Roller, 33...Flat roller.

Claims (1)

[Claims] 1. In a window glass lifting device that is supported so as to be able to rise and fall via a roller unit on a channel-shaped guide rail that is fixedly installed at an attachment site, a groove having a substantially V-shaped cross section is formed in one side wall of the guide rail. , the other side wall is formed in a planar shape, and the roller unit is provided with a roller that comes into sliding contact with a groove in one side wall of the guide rail, and a roller that comes into sliding contact with the planar side wall. lift device.