JPH11247523A - Moving-up and down device of window glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving-up and down device of a window glass by which an antitheft property of a car can be enhanced without increase of the output power loss of a motor. SOLUTION: A moving-up and down device for a car window glass having a carrier plate 5 is provided with a guide member 14 vertically movably fitted to in a guide rail and connected to a drive cable 6, a connection pin 13 protruded in the carrier plate 5 and held by the guide member 14 through a cushion block 15 having a claw 16 to transmit the movement of the drive cable 6 to the window glass 3, a blocking part 17 formed at the guide rail wall oppositely arranged to the guide member 14 in a specified position of the window glass 3 to be engageable with the claw 16. When the window glass 3 is pressed dot by an external force, the claw 16 protruded owing to the deformation of the cushion block 14 by the connection pin 13 is engaged with the blocking part 17 to prevent the window glass from moving down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window glass elevating device for a vehicle such as an automobile.

[0002]

2. Description of the Related Art FIGS.
It will be explained in. FIG. 1 is a side view of the door, and FIG. 5 is a sectional view of a speed reduction mechanism.

As shown in FIG. 1, a window glass 3 for opening and closing a window opening 2 of a door 1 is provided with a guide rail 4 extending vertically between door panels including an inner panel and an outer panel.
It is connected to a drive cable (wire) 6 via a carrier plate 5 that can move upward, and the drive cable 6 is opened and closed by being circulated forward and backward by a motor 7 and a reduction mechanism 8. . 9a and 9b are outer tubes for slidingly guiding the drive cable 6, and 10a and 10b.
b is a sash for slidingly guiding the window glass 3.

[0004] Then, as shown in FIG.
A ball 109 fitted to the tip of a rotary shaft (armature shaft) 108 is in elastic contact with a plate 112 supported on a housing 110 of a speed reduction mechanism 107 via a cushion member 111. In the figure, reference numeral 113 denotes a worm carved on the outer peripheral surface of the rotating shaft 108. Reference numeral 114 denotes a worm which meshes with the worm 113 to reduce the speed.
Is a worm wheel.

Therefore, when the window glass 102 at a predetermined opening position (the motor 106 is stopped) is to be lowered by an external force, the rotating shaft 108 is slightly moved toward the plate 112 by the thrust force of the worm 113. The ball 109 is axially moved, and the ball 109 fitted to the tip of the shaft comes into elastic contact with the plate 112. The frictional force (resistance) causes the rotation shaft to rotate.
108 is prevented from reversing, and the vehicle is stolen.

[0006]

However, in the above-described conventional window glass lifting / lowering device, the structure in which the window glass cannot be pushed down by an external force due to the resistance between the ball at the tip of the rotating shaft and the plate in the speed reduction mechanism. Therefore, when the resistance is increased to increase the anti-theft property of the vehicle, the output loss of the motor increases during normal operation, so that the anti-theft property of the vehicle is naturally limited. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a window glass elevating device capable of improving the antitheft property of a vehicle without increasing the output loss of a motor.

[0008]

According to a first aspect of the present invention, there is provided an automotive windowpane elevating device for raising and lowering a windowpane by a drive cable, wherein the windowpane is connected to the drive cable. On the other hand, in a device having a carrier plate movable on a guide rail extending in a vertical direction, a guide member fitted to the guide rail so as to be vertically movable and connected to the drive cable, and a projecting member provided on the carrier plate. A connection member that is held by the guide member via an elastic member having a first engagement portion and transmits the movement of the drive cable to the window glass; and the guide rail that faces the guide member at a predetermined position of the window glass. A second engaging portion provided on a wall portion and engageable with the first engaging portion, wherein the window glass is pressed downward by an external force. At the time, the first engagement portion and the second engagement portion protruding due to the deformation of the elastic member by the connection member are engaged with each other, so that the downward movement of the window glass is prevented. I do.

According to this, only when the window glass is pressed downward by the external force, the first engagement portion and the second engagement portion are engaged to prevent the downward movement thereof, while the window glass is prevented from moving downward. When the is pulled up and down by the drive cable, the first engaging portion and the second engaging portion do not engage, and both upward and downward movement are allowed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a window glass elevating device according to the present invention will be described in detail with reference to the drawings using embodiments.

FIG. 1 is a side view of the entire door showing this embodiment, FIG. 2 is an enlarged sectional view of a portion II in FIG. 1, and FIG.
FIG. 4 is a sectional view taken along line III-III of FIG.

The present invention differs from the prior art only in the configuration of the portion II in FIG.
The description of the overall configuration of the windowpane lifting device is omitted here.

The carrier plate 5 is described in detail with reference to FIGS. 2 and 3. The lower edge of the window glass 3 is provided with a fastening bolt 12 on both upper sides of the carrier plate 5 via a buffer member 11 having a U-shaped cross section. Are joined by

Then, a connecting pin 13 as a connecting member is integrally protruded from the center lower portion of the carrier plate 5 toward the guide rail 4. The connecting pin 13 is fitted to the guide rail 4 so as to be movable up and down, and the drive cable 6 is divided into a cylindrical guide member 14 having upper and lower ends connected to each other. It is fitted and held through the cushion block 15.

The cushion block 15 is disposed below the connecting pin 13 and has pawls 16 having a triangular cross section as first engaging portions on both sides in the front-rear direction of the vehicle. The elastic deformation allows the pawl 16 to advance and retreat in the vehicle front-rear direction in the through hole 14a of the guide member 14.

On the other hand, in the vehicle front-rear direction wall of the guide rail 4, at a position facing the guide member 14 at a substantially highest position of the window glass 3, a barbed portion (step portion) as a second engaging portion is provided. When the claw 16 projects outward (in the vehicle longitudinal direction in this embodiment) due to the elastic deformation of the cushion block 15, the claw 16 engages with the claw 16 to guide the guide member 14 (i.e., The downward movement of the window glass 3) is prevented.

With this configuration, when pulling up (closing) the window glass 3 by pulling the drive cable 6 driven by the motor 7, regardless of whether the claws 16 project outward, that is, the weight of the window glass 3. It is conceivable that the cushion block 15 is elastically deformed by being pressed by the connecting pin 13 due to the sliding resistance or the like and the claw 16 is projected outward through the through hole 14a of the guide member 14 (see FIG. 4). When ascending 14, the claw 16 and the claw portion (step portion) 17
And the guide member 14 (that is, the window glass 3) is allowed to move upward.

On the other hand, a drive cable 6 driven by a motor 7
When pulling down (opening) the window glass 3 by pulling
The drive cable 6 only pulls down the guide member 14 and no force is input to the cushion block 15, and the window glass 3 descends smoothly.

When the window glass 3 is pressed downward by an external force for the purpose of stealing the vehicle from the substantially highest position (substantially fully closed position) of the window glass 3, an input from the window glass 3 is applied to the connecting pin. 13 to the cushion block 15,
The cushion block 15 is pressed.

As a result, the cushion block 15
As shown in FIG. 4, the claw 16 is elastically deformed to
4 through the through hole 14a. As a result,
The pawl 16 and the barb 17 of the guide rail 4 are engaged, and the downward movement of the window glass 3 is prevented.

As described above, in this embodiment, it is not necessary to increase the resistance between the ball and the plate at the tip of the rotating shaft in the speed reduction mechanism as in the conventional window glass lifting / lowering device, thereby improving the vehicle's antitheft property. Therefore, the antitheft property of the vehicle can be effectively improved by a simple structure change in the carrier plate portion without increasing the output loss of the motor.

In the above-described embodiment, the guide rail 4 is formed as a stepped shape as the second engaging portion, and the barbed portion 17 is formed. However, the guide rail 4 may be formed in a straight shape to form a catch hole. Alternatively, other engaging portions may be formed.

Further, the second engaging portion is formed at a position substantially opposite to the guide member 14 at a substantially highest position of the window glass 3, but the guide portion is formed corresponding to a predetermined opening position of the window glass 3. A plurality of second engagement portions may be formed on the rail 4.

It should be noted that the present invention is not limited to the above-described embodiment, and the first engaging portion may be a claw 1 without departing from the gist of the present invention.
Needless to say, various changes such as providing an engagement member other than 6 are possible.

[0025]

According to the apparatus for raising and lowering a window glass according to the first aspect of the present invention, in the apparatus for raising and lowering a window glass for a vehicle having a carrier plate, a guide having a drive cable connected to a guide rail so as to be vertically movable. A connecting member projecting from the carrier plate and held by the guide member via an elastic member having a first engaging portion to transmit the movement of the drive cable to the window glass; A second engaging portion provided on the guide rail wall portion facing the guide member at a predetermined position and engageable with the first engaging portion, when the window glass is pressed downward by an external force. The first engagement portion and the second engagement portion protruded by deformation of the elastic member by the connection member are engaged,
Since the downward movement of the window glass is prevented, the antitheft property of the vehicle can be effectively improved by a simple structural change in the carrier plate portion without increasing the output loss of the motor.

[Brief description of the drawings]

FIG. 1 is a side view of a door showing one embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a part II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is an operation explanatory view.

FIG. 5 is a sectional view of a speed reduction mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Window opening 3 Window glass 4 Guide rail 5 Carrier plate 6 Drive cable 7 Motor 8 Reduction mechanism 13 Connection pin 14 Guide member 14a Through hole 15 Cushion block 16 Claw 17 Negative part

Claims (1)

[Claims] 1. An apparatus for raising and lowering a windowpane for an automobile, wherein said windowpane is moved up and down by a drive cable, said carrier having a carrier plate movable on a guide rail extending vertically while connecting said windowpane to said drive cable. A guide member which is fitted to the guide rail so as to be vertically movable and to which the drive cable is connected, and which is held via an elastic member projecting from the carrier plate and having a first engagement portion with the guide member. A connecting member for transmitting the movement of the drive cable to the window glass; and a connecting member provided on the guide rail wall facing the guide member at a predetermined position of the window glass and capable of engaging with the first engaging portion. A second engagement portion, wherein when the window glass is pressed downward by an external force, the first engagement protrudes due to deformation of the elastic member by the connection member. A window glass raising / lowering device, wherein a portion and the second engagement portion are engaged to prevent downward movement of the window glass.