JPH0323020Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" In this invention, a carrier plate fixed to a window glass is supported by a guide rail so that it can be opened and closed, and a cable is connected between the carrier plate and the drive unit. The present invention relates to a window regulator device that is installed in a cable and opens and closes a window glass via a carrier plate by the pulling operation of 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 opening and closing a window glass using a cable, if the operating force is constant, the opening/closing 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 almost completely closed and fully closed,
It is not possible to cope with the need to forcefully open and close the window glass (this appears as a significant difference in operating force, especially in hard-top cars without a sash), and it requires a large operating force temporarily, so the operating feeling is not good. Or, in the case of power windows, a high-output motor is needlessly prepared in order to secure a large amount of operating force for only a temporary period.

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 by focusing on these conventional problems, and an object of the present invention is to provide a window regulator device that solves the above problems by making it possible to obtain a strong opening force only when necessary. It is an object.

``Means for Solving Problems'' The gist of the present invention to achieve the above object is that a carrier plate fixed to the window glass is supported by a guide rail so that it can be opened and closed, and a cable is attached to the carrier plate. In a window regulator device that is stretched between a rear plate and a drive part and opens and closes a window glass by the pulling action of a cable, a connecting pulley is pivotally supported on the carrier plate, and the connecting pulleys are connected from both ends of the guide rail. The cables are extended around the pulleys, the ends of each cable are slightly wrapped around the winding groove of the connecting pulley, and then solidified. A pin is implanted in a part of the connecting pulley that has a smaller diameter than the winding groove, and the window glass is fixed. A stopper is fixedly attached to the guide rail to be close to or in contact with the pin at a position immediately before the window is fully closed, and when the window glass is fully closed, the connecting pulley winds a cable that becomes the tension side when the window glass is opened. When the window is stopped and the window glass is opened,
When the cable is pulled, the connecting pulley rotates with the pin in contact with the stopper, and during the rotation, the opening force of the window glass is applied due to the difference between the position of the winding groove and the position and diameter of the pin. The present invention relates to a window regulator device characterized in that the window regulator device is configured to increase the number of windows.

``Operation'' However, when the window glass is fully closed, the cable that will be on the tension side when opening is stopped and wrapped around the connecting pulley, so pull this cable on the tension side to open the window glass. Then, the pin installed in the connecting pulley is in contact with the stopper of the guide rail, and the cable rotates the connecting pulley at a part with a larger diameter than the position of the pin, from the fully closed position to the position just before fully closed. Based on this principle, the connecting pulley is pulled down as a whole with a strong force, generating a strong opening force.

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

As shown in FIG. 1, the window regulator device 10 includes a carrier plate 50 fixed to the lower end of the window glass, which extends between a drive unit 20 and a guide rail 30 installed along the opening/closing direction of the window glass. A cable 40 is stretched between the drive unit 20 and the drive unit 20, and the window glass is opened and closed by pulling the cable 40 through a carrier plate 50.

The drive unit 20 has a drive pulley 2 on a drive unit base 21.
2 is pivotally supported, and an electric motor 23 for rotationally driving the drive pulley 22 is provided, and a power supply line 24 is connected to the electric motor 23.

The guide rail 30 has a first guide shoe 3 at the top.
1 and a second guide shoe 32, a third guide shoe 33 is provided at the bottom, and a cable 4
0 indicates the drive pulley 22 of the drive unit 20, the first guide shoe 31, the second guide shoe 32, and the third guide shoe 3.
It is stretched to 3.

A carrier plate 50 fixed to the window glass is further slidably supported on the guide rail 30, and a boosting mechanism is provided between the carrier plate 50 and the guide rail 30.

That is, as can be seen from FIGS. 1 to 3, the carrier plate 50 has a connecting pulley 60 attached to the pivot shaft 6.
One end portion 41 of the cable 40 is wound approximately 1/4 of the way around the winding groove 62 of the connecting pulley 60 and then fixed to the connecting portion 63 . The connecting portion 63 is configured such that a hook portion 63a opens and closes a cable insertion hole.

The other end 42 of the cable 40 is wound approximately 1/4 turn around the winding groove 62 of the connecting pulley 60 from the opposite direction to the one end 41 and then fixed to the connecting portion 64 . The connecting portion 64 has the same structure as the connecting portion 63.

A pin 65 is implanted in a portion of the connecting pulley 60 that has a smaller diameter than the winding groove 62, and a reinforcing pirate 65a that supports the base of the pin 65 is pivotally supported on a pivot shaft 61, and the relative rotation of the reinforcing plate 65a is Stopper bosses 65b, 65b for stopping the reinforcing plate 65a are provided in a protruding manner on the connecting pulley 60 at a position that clamps the reinforcing plate 65a.

The connecting pulley 60 has a pin 65 connected to the guide rail 30.
It is possible to rotate within a range where it comes into contact with a wall surface 36 of a groove portion 35 formed in the groove portion 35 . That is, as shown in FIG. 2, when the pin 65 comes into contact with the wall surface 36,
Further, counterclockwise rotation is prevented, and as shown in FIG. 6, the pin 65 comes into contact with the stopper 34, thereby preventing clockwise rotation.

A stopper 34 is fixedly provided on the guide rail 30 so as to be close to or in contact with the pin 65 at a position immediately before the window glass is fully closed.

The boosting mechanism is configured by the above.

Next, the action will be explained.

By energizing the power supply line 24 and rotating the electric motor 23, the drive pulley 22 is rotated, thereby guiding the cable 40 between the first guide shoe 31 and the second guide shoe 31.
By guiding and moving along the guide shoe 32 and the third guide shoe 33, when one end 41 is pulled, the carrier plate 50 is lowered, and when the other end 42 is pulled, the carrier plate 50 is raised. You can open and close the window glass.

When the window glass is fully closed, the other end 42 of the cable 40 is pulled, and in the fully closed position of the window glass, the pin 65 approaches or contacts the stopper 34, and the window closes. One end 41 that becomes the tension side when opening the glass
The connecting pulley 60 is stopped in a state where it is wound into the winding groove 62.

When one end 41 of the cable 40 is pulled from the state shown in FIG. 2, the connecting pulley 6 reaches the state shown in FIGS. 5 and 6 while the pin 65 is in contact with the stopper 34.
0 rotates. During this time, the pin 65 does not descend and the pivot 61 descends, so the force that lowers the pivot 61 depends on the ratio of the distances between the winding groove 62, the pivot 61, and the pin 65, and is greater than the tensile force of the one end 41 of the cable 40. It becomes something big.

The carrier plate 50 is lowered with strong force for a while from the fully closed position to the position immediately before fully closed, and the connecting pulley 60
When rotation is prevented, the cable 40 is lowered by its normal tension.

"Effect of the invention" According to the window regulator device according to the invention, when opening the window glass, it can be opened with a strong force for a while from fully closed to just before fully closed, so it is possible to temporarily operate with a large force. The window glass can be opened smoothly without requiring any force, and no extra power is required.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; Fig. 1 is a front view of the window regulator device when the window glass is fully closed; Fig. 2 is an enlarged view of the main parts of Fig. 1;
3 is a sectional view taken along the line shown in FIG. 2, FIG. 4 is a sectional view taken along the line shown in FIG. 2, and FIG. 5 is a partial front view of the window regulator device immediately before the window glass is fully closed.
FIG. 6 is an enlarged view of the main part immediately before the window glass is fully closed. 10... Window regulator device, 20...
... Drive section, 30 ... Guide rail, 34 ... Stopper, 40 ... Cable, 50 ... Carrier plate, 60 ... Connection pulley, 62 ... Winding groove, 65
……pin.

Claims (1)

[Scope of utility model registration request] A window regulator in which a carrier plate fixed to a window glass is supported by a guide rail so that it can be opened and closed, a cable is stretched between the carrier plate and a drive part, and the window glass is opened and closed by the pulling action of the cable. In the rotor device, a connecting pulley is pivotally supported on a carrier plate, cables are extended from both ends of the guide rail to the connecting pulleys, and the ends of each cable are slightly wrapped around the winding grooves of the connecting pulley, and then fixed. a pin is implanted in a portion of the connecting pulley having a smaller diameter than the winding groove, and a stopper is fixed to the guide rail that approaches or abuts the pin at a position immediately before the window glass is fully closed; When the window glass is fully closed, the connecting pulley stops with the cable that is pulled when the window glass is opened, and when the cable is pulled when the window glass is opened, the pin hits the stopper. The window regulator is characterized in that the connection pulley rotates while in contact with the pulley, and during the rotation, the opening force of the window glass is increased due to the difference between the position of the winding groove and the position and diameter of the pin. rator device.