JPH0321713B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention is characterized in that a carrier plate fixed to a window glass is supported by a guide rail so as to be slidable in opening and closing, and a cable is connected between the carrier plate and a drive section. The present invention relates to a window regulator device that is installed between the windows and opens and closes a window glass by pulling a cable.

"Conventional technology" As a conventional window regulator device,
For example, there is one disclosed in Japanese Unexamined Patent Publication No. 123986/1986.

This publication discloses that when a cable is used to open and close a window glass, if the driving force is constant, the operating force is always constant.

``Problems to be Solved by the Invention'' However, in such conventional window regulator devices, the opening/closing force is always constant, so between opening and closing between the almost fully closed state and the fully closed state,
It is not possible to cope with the need to forcefully close the window glass (this appears as a significant difference in operating force, especially in hard-top cars without a closure), and the large operating force is required at the end, resulting in poor operating feel. In the case of power windows, a high-output motor would be needlessly prepared in order to ensure a large opening/closing force only at the end.

In addition, even if the window glass freezes in a cold region, it is necessary to devise ways to obtain enough opening force to open the window glass, and if it is a power window, a high-output motor is required to do so. As a result, the cable is easily stretched because it is operated at high output even when it is not needed.

The present invention has been made in view of these conventional problems, and it is an object of the present invention to provide a window regulator device that solves the above problems by making it possible to obtain a strong opening/closing force only when necessary. It is an object.

``Means for Solving the Problems'' The gist of the present invention for achieving the above object is that a carrier plate fixed to a window glass is supported by a guide rail so as to be able to open and close, and a cable is In the window regulator device, which is stretched between the carrier plate and the drive unit and opens and closes the window glass by the pulling operation of a cable, a connecting pulley is pivotally supported on the base plate of the carrier plate, and the window glass is opened and closed by the pulley of the carrier plate. supports a moving plate slidably in the direction;
Extending the ends of the cables from both ends of the guide rail to the connecting pulleys, wrapping the ends of each cable approximately half a turn around the winding groove of the connecting pulley, and reversing it in the opposite direction to the direction in which it was extended. A locking mechanism is provided between the moving plate and the substrate, and when the window glass is moving through an intermediate position, the moving plate is fixed to the substrate of the carrier plate. and, while the window glass is between the immediately before fully closed position and the fully closed position, the movable plate and the substrate of the carrier plate are unfastened and the movable plate is fixed to the guide rail. The present invention relates to a window regulator device in which the locking mechanism is configured to do so.

``Operation'' When the window glass opens and closes between the fully closed position and the immediately before fully closed position, the cable squeezes the connecting pulley and moves the base plate of the carrier plate relative to the moving plate. This principle generates a strong opening and closing force.

“Embodiment” An embodiment of the present invention will be described below based on the drawings. As shown in FIG. 2, the window regulator device 10 includes a driving section 20 and a window glass G.
A cable 40 is stretched between the window glass and the drive unit 20, and the window glass G is opened and closed by the pulling operation of the cable 40. .

The drive unit 20 has an electric motor 2 on a drive unit base 21.
2 and a pulley 23 rotated by an electric motor 22
It has

The guide rail 30 has a first guide pulley 31 at the top,
A second guide pulley 32 is provided at the bottom, and the cable 40 is wound around the pulley 23 of the drive section 20, the first guide pulley 31, and the second guide pulley 32.

As shown in FIGS. 1 to 3, the guide rail 30
A carrier plate 50 to which the window glass G is fixed is slidably supported.

The carrier plate 50 has a connecting pulley 60 pivotally supported on the base plate 51 and supports a moving plate 70 that is slidable relative to the base plate 51 in the moving direction of the carrier plate 50 . That is, the carrier plate 50 is attached to the moving plate 70.
A sliding support shaft 71 is installed in the moving direction of the substrate 51, and the sliding support shaft 71 freely passes through the center of the substrate 51, so that the moving plate 70 is slidably supported by the substrate 51. The base plate 51 has holes 51a, 51a for solidifying the window glass G.

One end 41 of the cable 40 extends from below toward the connecting pulley 60 and is connected to the winding groove 6 of the connecting pulley 60.
The lower end portion 72 of the movable plate 70 is wound approximately half a turn around the movable plate 70 and reversed in the direction opposite to the direction in which it was stretched.
It is solidified in

The other end 42 of the cable 40 extends from above to the connecting pulley 60 in the opposite direction to the one end 41, is wound approximately half a turn around the winding groove 62 of the connecting pulley 60, and is reversed in the opposite direction to the direction in which it was extended. Then, it is fixed to the upper end 73 of the moving plate 70.

A locking mechanism is provided between the moving plate 70 and the substrate 51.

That is, the lock lever 80 is pivotally attached to the movable plate 70 so as to be able to swing like a seesaw, and one end of the lock lever 80 is provided with a lock lever 80 that is positioned at one end when the window glass G is moving between a fully open position and a position immediately before fully closed.
That is, while the window glass G is in sliding contact with the inner surface 33 of the guide rail 30 while moving in the intermediate position, it is notched from the inner surface 33 of the guide rail 30 while the window glass G is between the fully closed position and the immediately before fully closed position. It has a roller-shaped rail fastening end 81 that is locked in the locking notch 34 .

The other end of the lock lever 80 is provided with a carrier that engages with one end 53 of a protrusion 52 provided on the base plate 51 when the window glass G is moving between a fully open position and a position immediately before fully closed. The locking lever 80 is biased by a spring 83 in a direction in which the rail locking end 81 engages with the locking notch 34 .

The base of the rail locking end 81 is provided with a release abutting portion 84 that rotates the lock lever 80 in a direction in which the rail locking end 81 separates from the locking notch 34 when the other end 54 of the protrusion 52 comes into contact with it. It is formed.

The above constitutes a lock mechanism.

Next, the effect will be explained.

When window glass G is in the fully closed position,
The carrier plate 50 is in the state shown in FIG. 1, with the rail fastening end 81 of the lock lever 80 being locked in the locking notch 34 of the guide rail 30, and the moving plate 70 being fastened to the guide rail 30. ,
The substrate 51 is located at the end of the movable plate 70 on the fully closed side.

Cable 40 to open window glass G
When one end 41 is pulled, the moving plate 70 is stopped, so the board 51 is pulled through the connecting pulley 60.
Since the connecting pulley 60, which is pulled and moves downward in FIG. 1, functions as a moving pulley, it is pulled with twice the tension of the cable 40. In other words,
Window glass G is opened with twice the normal opening/closing force.

When the window glass G is opened to the position immediately before fully closing, the board 51 is in the state shown in FIGS. The release contact part 84 is pushed and the lock lever 80
is rotated against the biasing force of the spring 83, and as shown in FIG.
from the locking notch 34.

As a result, the guide rail 3 of the moving plate 70
0 is released and one end 41 of the cable 40 is pulled further, the connecting pulley 60 no longer rotates and the carrier plate 50 is lowered by normal force and the window glass G is opened.

When closing the opened window glass G,
Since the rail fixed end 81 of the lock lever 80 rides on and is in sliding contact with the inner surface 33 of the guide rail 30, the carrier fixed end 82 of the lock lever 80 protrudes in front of one end 53 of the protrusion 52 of the base plate 51, and the seventh
As shown in the figure, the carrier plate 50 in which the board 51 and the moving plate 70 are solidified and the board 51 and the moving plate 70 are integrated is connected to the cable 40.
The window glass G is closed by being pulled by the other end 42 with normal force.

When the carrier plate 50 is at the position just before being fully closed, the rail fastening end 81 of the lock lever 80 engages the locking notch 34 of the guide rail 30, and the rail fastening end 81 falls into the locking notch 34 due to the biasing force of the spring 83. , the carrier fastening end 82 is removed from one end 53 of the protrusion 52 of the base plate 51, and the moving plate 70 is in the state shown in FIG. 4 that is fastened to the guide rail 30.

When the other end 42 of the cable 40 is further pulled from this state, only the board 51 moves via the connecting pulley 60 while the moving plate 70 remains stationary.
In this case as well, the connecting pulley 60 works as a movable pulley, so the substrate 51 is pulled with twice the tension of the other end 42 . In other words, the window glass G is the normal 2
Can be closed with twice the opening and closing force.

"Effects of the Invention" According to the window regulator device of the present invention, the window glass is opened and closed with twice the normal opening and closing force while it is between the fully closed position and the immediately before fully closed position. , it is possible to obtain a strong operating force when necessary with the same operating force, to smoothly open and close the window glass, and to satisfy both operability and economic efficiency without requiring extra power. Can be done.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a front view of the main part of the window regulator device when the window glass is in the fully closed position, Fig. 2 is a front view of the same installed state, and Fig. Figure 3 is a sectional view taken along the line shown in Figure 1, Figure 4 is a front view of the main parts of the window regulator device when the window glass is between the fully closed position and the position immediately before fully closed, and Figure 5 is a front view of the main part of the window regulator device. Figure-
6 is a front view of the main parts of the window regulator device when the window glass is in the position immediately before fully closing, and FIG. 7 is a main part of the window regulator device when the window glass is in the intermediate position. FIG. 10... Window regulator device, 20...
... Drive unit, 30 ... Guide rail, 34 ... Locking notch, 40 ... Cable, 50 ... Carrier plate, 51 ... Board, 60 ... Connection pulley, 70 ...
...Movement plate, 80... Lock lever.

Claims (1)

[Claims] 1. A carrier plate that is fixed to the window glass is supported by a guide rail so that it can be opened and closed, and a cable is stretched between the carrier plate and the drive unit, and the window glass is opened and closed by the pulling action of the cable. In the window regulator device, a connecting pulley is pivotally supported on the substrate of the carrier plate, and a movable plate is supported slidably in the window glass opening/closing direction, and cables are connected to the connecting pulleys from both ends of the guide rail. The ends of each cable are stretched out, the ends of each cable are wrapped around the winding groove of the connecting pulley approximately half a circumference, the cables are reversed in the opposite direction to the direction in which the cables are stretched, and then fixed to the movable plate. A locking mechanism is provided between the window glass and the substrate, and when the window glass is moving in an intermediate position, the moving plate is fixed to the substrate of the carrier plate, and the window glass is moved between the position just before fully closed and the fully closed position. the locking mechanism is configured to release the fixation between the movable plate and the base plate of the carrier plate and fix the movable plate to the guide rail while the movable plate is between the two positions; rator device.