JPH09189170A - Lifting device for window glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove an abnormal sound when a window glass is closed up while smoothly conducting the lifting-lowering operation of the window glass. SOLUTION: A wire 33 between an upper roller 34 and a lower roller 35 is fitted to a carrier plate 31 fixed onto a window glass 21, and the carrier plate 31 is slid along a guide rail 30 through the wire 33 by a motor 321 and the window glass 21 is lifted and lowered. The places Q1, Q2 of the mounting of the wire in the carrier plate 31 are set so as to be displaced from a reference straight line Lo, and a wire projecting angle formed by the reference straight line Lo is increased gradually to connection straight lines (corresponding to 331, 332) tying one of both rollers 34, 35 and the places Q1, Q2 of the mounting of the wire with the approach of the carrier plate 31 to one of the upper roller 34 and the lower roller 35. Accordingly, the speed of travel of the glass 21 can be reduced suddenly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass lifting device used in a vehicle or the like, and more particularly to a window glass lifting device configured to vertically move a window glass for opening and closing a window by using a wire type window regulator.

[0002]

2. Description of the Related Art A vehicle or the like is provided with a window that can be opened and closed by sliding a window glass, and in particular, a door for a vehicle is often fitted with a window glass that can be opened and closed vertically. For example, as shown in FIG. 6, front and rear run channels 4, 5 are provided on the door panel 2 and the door sash 3 of the door 1.
The upper run channel 6 is fixed, and the front and rear ends, which are the side ends of the window glass G, are slidably fitted between the front and rear run channels 4, 5. Window glass G is front and rear run channel 4,
It is possible to slide along 5 between an upper window closed position and a lower window open position. A central guide rail 7 is arranged between the front and rear run channels 4 and 5 in parallel with both run channels.
The pair of slide portions 12 provided in the guide are slidably guided. The window glass G is connected to the wire-type window regulator 8, and the window glass G can be slid up and down by being driven by the switching operation of a switch (not shown) by an operator.

That is, the window regulator 8 is provided with a drum (not shown) driven by a drive motor 9, and the extended portion of the wire 10 which is wound around the drum and is openable is stretched between an upper roller and a lower roller (not shown).
Part of the wire between these rollers is the carrier plate 1
1 at the vertical mounting positions P1 and P2.
Here, the vertical mounting positions P1 and P2 are located on the reference line L1 that connects the rollers, and the pulling force of the wire in the vertical direction is transmitted to the window glass G via the carrier plate 11. At this time, the window glass G moved up and down by the drive motor 9 through the wire 10 rises until the upper end portion of the window glass comes into contact with the upper run channel 6, and descends until the lower end portion comes into contact with a lower end stopper not shown. Assuming that the sliding resistance between the window glass and the front and rear run channels 4 and 5 is substantially constant, the ascending / descending speed of the window glass is substantially constant.

[0004]

By the way, the window glass G
Comes into sliding contact with the upper run channel 6 and a lower end stopper (not shown) at a substantially constant speed, but when the deadline is reached, the ceiling of the vehicle body or the glass plate becomes a vibrating plate and an abnormal noise is produced. In particular, when the upper end of the window glass G contacts the upper run channel 6, the sound source is located near the ears of the occupant, which is a audible problem. At present, since the window glass G rises at a constant speed, lowering the rising speed of the window glass lowers the inertia of the glass and lowers the volume, but it is limited to lowering the moving speed of the glass for convenience. There is.

Further, when the window regulator 8 is driven and the window glass G is guided by the central guide rail 7 and the front and rear run channels 4, 5 and rises, as shown in FIG. 7, the central guide rail 7 and a pair of slide portions. Due to the clearance s between the window glass G and the carrier plate 11, the window glass G integrated with the carrier plate 11 rotates in the vehicle body front-rear direction R when ascending and descending, and a construction error between the front and rear run channels 4, 5 and the window glass G is combined. As a result, the rear upper end portion A of the window glass G is strongly rubbed into the rear run channel 5, and the run channel is abraded, which causes a problem that the window glass is not lifted and lowered.

Incidentally, in the window panel lifting device disclosed in Japanese Utility Model Laid-Open No. 3-29685, as shown in FIG. 8, on the carrier plate 17 integrated with the window glass, the front sliding parts 13a, 13b and the rear sliding parts are provided. The sliding portions 14a and 14b are formed, and the carrier plate 17 is moved up and down by the wire 16 for moving up and down. In this case, the front sliding parts 13a, 1
3b holds the front guide piece 15a of the guide rail 15, and the rear sliding parts 14a and 14b hold the rear guide piece 15b of the guide rail 15. In particular, the wire 16 for raising and lowering is connected to the mounting position J on the carrier plate 17, which is close to the front sliding portions 13a and 13b, so that the window glass which is urged to rotate in the rearward rolling direction R1 can be smoothly raised. I am trying to make it work.

However, in this case, the carrier plate 17
Set the upper wire 16 mounting position J to the front sliding parts 13a, 13b.
And the rear sliding portions 14a and 14b are deviated from the center between them, and not only cause the window glass to rotate and bias in the rearward rolling direction R1, but also the wire bulge angle Since it does not change even near the top and bottom dead center of the glass, it is not possible to obtain the effect of preventing abnormal noise when the window glass is shut off and the effect of reducing the frictional resistance due to the front and rear support of the wire on the window glass. Is left. An object of the present invention is to provide a window glass lifting device that eliminates abnormal noise when the window glass is shut off and that can smoothly move the window glass up and down.

[0008]

In order to achieve the above-mentioned object, according to the invention of claim 1, the guide rail fixed to the lower end portion of the window glass is provided along the vertical direction of the window glass. Assemble the carrier plate slidably, attach a part of the wire between the upper and lower extension guides of the window regulator to the carrier plate, and drive the window regulator to move the wire. A window glass elevating device in which the carrier plate slides along the guide rails to elevate and lower the window glass, wherein a wire attachment position of the carrier plate is a reference line connecting between the upper and lower extension guides. The carrier plate is set at a position where it deviates and approaches one of the upper and lower extension guides as the carrier plate moves up and down. Accompanied by, with respect to connection line connecting the one and the wire attachment positions of the upper and lower overhanging guide, characterized in that the wire Izuru Cho angle above the reference line is formed is configured to incrementally.

According to a second aspect of the present invention, in the window glass lifting device according to the first aspect, the wire mounting position has two wire projecting portions separated at two positions of the carrier plate.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a window glass lifting device as one embodiment of the present invention. The window glass lifting device is used to open and close the window glass 21 of the driver's side door 20 of the vehicle (not shown).

A door 2 equipped with this window glass lifting device
The front portion (left side in FIG. 1) of 0 is pivotally attached to a front pillar that is a vehicle body base portion (not shown), and the rear portion (right end in FIG. 1) can rotate as a rotation end when the locking device (not shown) is released. The door is formed of a double-structured door panel 201 including an inner panel and an outer panel, and a door sash 22 that is provided inside and above the door panel 201 and integrally coupled to each other. The door sash 22 has front and rear run channels 23, 24 and an upper run channel 25 (see FIG. 5).
Are integrally incorporated, thereby eliminating the rattling between the peripheral portion of the window glass 21, the front and rear run channels 23, 24, and the upper run channel 25, and ensuring airtightness. In FIG. 5, reference numeral 27 indicates a side portion of a roof (not shown), reference numeral 28 indicates an outer weather strip, and reference numeral 29.
Indicate inner weather strips.

The window glass 21 has front and rear run channels 23,
By sliding the stroke S along 24, it is possible to move alternately to the upper window closing position U and the lower window opening position L. A central guide rail 30 is provided between the front and rear run channels 23, 24 in parallel with both run channels, that is, along the up-and-down direction of the window glass. The rail 30 is a base portion (not shown) on the door panel 201 side. Fixed to. As shown in FIGS. 1 and 2, the central guide rail 30 slidably guides the carrier plate 31 fixed to the lower end portion of the window glass 21. That is, the central guide rail 30 has a U-shaped cross section, and the front and rear sliders 36 and 37 extending from the carrier plate 31 contact the outer wall surfaces of the flange 301 at the front and rear ends of the central guide rail 30. A gap s between the sliders 36 and 37 and the outer wall surfaces of the front and rear flanges 301 facilitates vertical sliding. The wire 33 of the window regulator 32 is attached to the carrier plate 31.

Here, the window regulator 32 is
The door panel 201 includes a motor 321, which is provided inside the door panel 201, as a driving device for the door panel 201, a drum 322 that is driven by a reduction mechanism (not shown), and a wire 33 that is wound around the drum and is openable. Wire 33 is drum 3
22 is provided with a loop-shaped extending portion, and the extending portion is stretched between an upper roller 34 and a lower roller 35 as upper and lower extension guides. Here, the upper roller 34 and the lower roller 35 are arranged near the upper and lower ends of the central guide rail 30, and the reference straight line Lo connecting them is set to coincide with the vertical direction of the window glass.

As shown in FIGS. 1 and 2, the upper wire 331 extending in the descending direction from the upper roller 34 is attached to the upper wire attachment position Q1 which is deviated to the rear side of the reference straight line Lo of the carrier plate 31 and above the lower roller 35. The lower wire 332 extending in the direction is attached to the lower wire attachment position Q2 of the carrier plate 31 deviated to the front side from the reference straight line Lo. The motor 321 is connected to a power source (not shown) via a drive circuit (not shown). This drive circuit has a well-known configuration, and has a switch function of intermittently operating between the power source and the power source so as to selectively drive the motor 321 in the forward and reverse directions by switching operation of a regulator switch (not shown). It has a function as a circuit limiter that shuts off the power supply circuit according to a sudden increase in the motor load when reaching the upper and lower ends.

In such a window glass lifting device, when an occupant switches a regulator switch (not shown) to the lower side, the motor 321 reversely rotates and the window glass 21 at the window shut-off position U can be lowered. As a result, the window glass 21 descends while the regulator switch is switched and held on the descending side, and the stopper at the lower end (not shown) comes into contact with the window glass, so that the circuit limiter mechanism of the power supply circuit can act to cut off the current. The window opening position L is held. On the contrary, while the regulator switch is switched and held in the rising side, the window glass 21 at the window open position L rises and comes into contact with the upper run channel 25 so that the circuit limiter mechanism of the power supply circuit works to interrupt the current. The glass can be held at the window closing position U.

During this vertical sliding movement, the carrier plate 31 moves the upper wire attachment position Q1 to the upper wire 3 until the window glass 21 contacts the upper run channel 25.
It is pulled up by 31, and the window glass 21 side is forward R
It is rotationally biased to f. At this time, the lower end m of the front slider 36 and the upper end n of the rear slider 37 are located at the center guide rail 30.
Slidably in contact with the flange 301 of the window glass 21, and in this state, the upper rear end P of the window glass 21 is separated from the bottom portion of the rear run channel 24 by a predetermined amount and can be smoothly raised.

In particular, the window glass 21 has a window opening position L (see FIG. 1).
(Refer to FIG. 3), the carrier plate 31 passes through the middle position Hc indicated by the solid line from the state where it is held at the lower position H _L (shown by the two-dot chain line in FIG. 3) and further rises. In this case, the wire bulge angle α0 formed by the reference straight line Lo with respect to the connecting straight line (the line indicated by the upper wire 331) connecting the upper wire attachment position Q1 on the carrier plate 31 and the upper roller 34 gradually increases, but is relatively high. small. During this time, the tensile force applied from the upper wire 331 to the upper wire attachment position Q1 is smoothly and efficiently applied because the component force intersecting the upper wire 331 is relatively small, and the ascending speed of the carrier plate 31 is as shown by area e1 in FIG. Relatively early.

After that, when the window glass 21 side is held at the window shut-off position U and the carrier plate 31 is held at the upper position H _U (shown by the broken line in FIG. 3) and its vicinity, the upper part on the carrier plate 31 is reached. The wire bulge angle α1 formed by the reference straight line Lo with respect to the connecting straight line (the line indicated by the upper wire 331) connecting the wire mounting position Q1 and the upper roller 34 rapidly increases. At this time, the tensile force applied from the upper wire 331 to the upper wire attachment position Q1 is the upper wire 3
Since the component force intersecting with 31 sharply increases, it sharply decreases, and the rising speed of the carrier plate 31 sharply decreases as shown by a region e2 in FIG. Therefore, the generation of abnormal noise when the window glass 21 side reaches the window closing position U can be almost prevented.

On the contrary, the window glass 21 has the window closing position U.
1 (see FIG. 1), the carrier plate 31 is held at the upper position H _U (shown by the broken line in FIG. 3), passes through the middle position Hc shown by the solid line, and further descends. In this case, the reference straight line L with respect to the connecting straight line (the line indicated by the lower wire 332)
The wire overhang angle α0 ′ formed by o gradually increases but is relatively small. At this time, the component of the pulling force applied from the upper wire 331 to the lower wire attachment position Q2 is relatively small, and the descending speed of the carrier plate 31 is relatively fast as indicated by the area e1 in FIG. After that, when the window glass 21 side is held at the window opening position L and the carrier plate 31 is held at the lower position H _L (shown by the two-dot chain line in FIG. 3) and its vicinity, the lower wire on the carrier plate 31 is reached. Mounting position Q2
And a connecting straight line connecting the lower roller 35 (lower wire 332
Wire), the wire bulge angle α formed by the reference straight line Lo
2 increases rapidly. At this time, the lower wire mounting position Q
The pulling force applied from the lower wire 332 to 2 rapidly decreases because the component force intersecting the lower wire 332 rapidly increases, and the descending speed of the carrier plate 31 rapidly decreases as indicated by a region e3 in FIG. Therefore, the generation of abnormal noise when the window glass 21 side reaches the window opening position L is almost prevented.

The upper and lower portions e0 in FIG. 3 are applied with a pressing force required to reliably move the window glass 21 side to the window closing position U or the window opening position L. Indicates the area. In the above description, the window glass lifting device has been described as being attached to the door 20, but this device may be applied to windows of other parts other than the door of the vehicle. can get.

In the above-mentioned process, the upper wire 3 connecting the roller 34 and the wire mounting position Q1 with respect to the reference straight line Lo.
31 extends rearward, and the roller 35 and the wire attachment position Q2
The lower wire 332 connecting to and was extending forward. However, in some cases, when the front edge of the window glass is pressed against the run channel side instead of the upper rear edge P of the window glass when the window glass is raised, the extension direction of the upper wire 331 and the lower wire 332 is changed back and forth. The setting may be reversed, and in this case as well, when the window glass 21 reaches the window closing position U, the wire overhanging angle sharply increases and the moving speed of the window glass sharply decreases. Can prevent, window glass 21
Can be smoothly moved up and down. Further above,
Although the upper and lower extension guides of the window regulator have been described as the upper roller 34 and the lower roller 35, in some cases, the structure may be simplified as a fixing member with a groove for simply guiding the wire slidably.

As described above, in the window glass lifting device of the present invention, the wire mounting positions Q1 and Q2 are set at positions where they deviate from the reference straight line Lo, so that the carrier plate 31 is attached to one of the upper roller 34 and the lower roller 35. One of the rollers 34 and 35 and the wire mounting position Q
The wire bulge angle α formed by the reference straight line Lo is gradually increased with respect to the connecting straight line indicated by the upper and lower wires 331 and 332 that connect 1 and Q2. Therefore, when the window glass 21 reaches the window closing position U, the wire overhang angles α1 and α2 suddenly increase and the moving speed of the window glass sharply decreases, so that it is possible to prevent generation of abnormal noise when the window glass is closed. Moreover, since the window glass 21 can be biased by the rotation Rf to separate the upper rear end P thereof from the bottom portion of the run channel 26, the window glass 21 can be smoothly moved up and down.

In particular, as in the device of FIG. 1, the wire attachment positions Q1 and Q2 may be set as the wire overhanging portions which are separated into two portions of the carrier plate 31.
In this case, the wire overhang angles α1 and α2 at the time of shutting off the window glass 21 can be sufficiently sharply increased, the moving speed of the window glass can be surely sharply reduced, and abnormal noise can be surely generated at the time of shutting off the window glass. Further, the window glass can be reliably urged to rotate in a direction to reduce the frictional resistance between the upper rear end P of the window glass 21 and the run channel 26, and the window glass can be smoothly moved up and down.

In particular, as in the device of FIG. 1, the wire attachment position Q1 may be arranged on the carrier plate 31 behind the reference straight line Lo. In this case, the wire overhang angle α1 can be secured large toward the rear, the moving speed at the time of closing the window glass can be surely rapidly reduced, the generation of abnormal noise at the time of closing the window glass can be reduced, and moreover, the window glass By rotating and urging in the forward direction to reduce frictional resistance, the window glass can be smoothly raised.

[0025]

As described above, according to the present invention, the wire between the upper and the lower extension guides is attached to the carrier plate fixed to the window glass, and the drive device of the window regulator guides the carrier plate via the wire. It slides along the rails to move up and down the window glass, and in particular, the wire mounting position of the carrier plate is set at a position that deviates from the reference line connecting the upper and lower extension guides, so the carrier plate moves up and down. As a result, the wire bulge angle formed by the reference line gradually increases with respect to the connecting line connecting one of the upper and lower bulging guides and the wire mounting position as the upper and lower bulging guides are approached. For this reason, when the window glass is cut off, the wire overhanging angle is sharply increased, the moving speed of the window glass is drastically reduced, and the generation of abnormal noise when the window glass is cut off can be reduced. Moreover, since the window glass can be urged to rotate in the direction that reduces the frictional resistance between the left and right end portions of the window glass and the guide run channel, the window glass can be smoothly moved up and down.

[Brief description of the drawings]

FIG. 1 is a schematic overall configuration diagram of a window glass lifting device as an embodiment of the present invention.

2 is an enlarged cutaway side view of a central guide rail in the windowpane lifting device of FIG. 1. FIG.

FIG. 3 is an enlarged side view of an essential part for explaining the operation of the window regulator in the window glass lifting device of FIG.

FIG. 4 is an elapsed time-stroke characteristic diagram illustrating an operating mode of a window glass driven by the window glass lifting device of FIG. 1.

5 is a cross-sectional view of essential parts in a state where a window glass driven by the window glass lifting device of FIG. 1 is in contact with an upper run channel.

FIG. 6 is a schematic overall configuration diagram of a conventional window glass lifting device.

FIG. 7 is a side view of an enlarged main part for explaining the operation of the conventional windowpane lifting device.

FIG. 8 is an enlarged cutaway side view of a conventional window glass lifting device.

[Explanation of symbols]

 20 door 201 door panel 21 window glass 23-25 run channel 30 central guide rail 301 front and rear end flange 31 carrier plate 32 window regulator 321 motor 33 wire 34 upper roller 322 drum 35 lower roller 36 front and rear slider 37 front and rear slider α1 wire overhanging angle α2 wire Overhang angle Rf Rotation direction P Upper rear end Q1 Upper wire mounting position Q2 Lower wire mounting position L Window opening position Lo Reference straight line U Window closing position

Claims (2)

[Claims] 1. A carrier plate fixed to the lower end of the window glass is slidably assembled to a guide rail provided along the up-and-down direction of the window glass, and the carrier plate has an upper portion of a window regulator. By attaching a part of the wire between the lower extension guide and moving the wire by the drive device of the window regulator, the carrier plate slides along the guide rail and the window glass is moved up and down. In the window glass lifting device, the wire attachment position of the carrier plate is set at a portion that deviates from the reference line connecting the upper and the lower overhang guides, and the carrier plate moves upward and downward as the carrier plate moves up and down. As it approaches one of the lower extension guides, one of the upper and lower extension guides and the wire mounting position A window glass lifting device, characterized in that the wire overhang angle formed by the reference line is gradually increased with respect to the connecting line connecting the two. 2. The window glass lifting device according to claim 1, wherein the wire mounting position is set at 2 of the carrier plate.
A window glass lifting device, characterized in that it has a wire overhanging portion that is separated at each point.