JPH0619734Y2 - Wire type window / regulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a wire type window regulator.

[Prior Art] Generally, a window panel (glass) can be moved up and down by a window regulator.

As the window regulator, there are known a manual type in which a wire drum is driven manually and a power window type in which a drive motor is used.

Compared to the manual type, the power window type keeps rising until the window glass is fully closed when the drive motor is operated. Therefore, the power window type regulator is disclosed in, for example, Japanese Unexamined Patent Publication No. 61-10691. A safety mechanism is provided so that the sensor works when the neck or hand is pinched when the window glass is raised and the operation of the drive motor is stopped by the signal from the sensor.

[Problems to be Solved by the Invention] As described above, in the safety mechanism of the window regulator using the sensor, it is necessary to devise the mounting position of the sensor, and if the sensor is exposed, the appearance quality is impaired. Alternatively, if a sensor is provided in the weather strip so that it cannot be seen, problems such as difficulty in processing will occur.

Therefore, this device has no sensor, and
It is an object of the present invention to provide a wire type window regulator having a simple structure that can surely stop the operation of the drive motor when a hand or the like is caught.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, a wire drum that is controlled by a drive motor so as to be capable of forward and reverse rotation, and a guide rail that is controlled by the wire drum. A wire type window including an inner cable arranged along the inner cable, a carrier plate connected to the inner cable and movable along the guide rail from an operating region to a load region, and an outer tube through which the inner cable is inserted. In the regulator, one end side of the outer tube is biased by the biasing means and is supported so as to be relatively movable with respect to the inner cable, and at least within the working area of the carrier plate, the inner cable is relatively moved by an excessive load. The movement of the outer tube causes the drive motor to move. The circuit is turned off.

[Operation] In such a window regulator, the carrier plate slides from the operation region to the load region by the forward rotation and the reverse rotation of the drive motor, so that the window panel can be opened and closed.

Next, if the hand or neck is pinched by the window panel and an excessive load is applied to the inner cable when the carrier plate is raised in the operating region, the outer tube relatively moves against the biasing spring. The relative movement of the outer tube disconnects the motor circuit, so that the operation of the drive motor is stopped. Therefore, even if your hand or neck is caught, it will not cause serious injury.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings of FIGS. 1 to 6.

In the figure, reference numeral 1 denotes a guide rail of a window regulator 3 which is vertically long, and a bracket 5 fixed to the rail 1 is attached to an inner panel 9 of an automobile door 7.

A carrier plate 11 that can move up and down along the guide rail 1 is mounted on the guide rail 1, and a window panel 15 (glass) is mounted and supported on a mounting portion 13 of the plate 11.

Further, an inner cable 17 is connected to the carrier plate 11, and is controlled by the cable 17 so as to be able to move up and down from the operation region L ₁ to the load region L ₂ . The inner cable 17 is arranged along the guide rail 1. That is, one end of the inner cable 17 has the guide rail 1
An outer tube 21 is inserted through a guide roller 19 provided on the upper side of the wire and wound around a wire drum 23. Further, the other end of the inner cable 17 has the guide rail 1
Is extended upward through a guide roller 25 provided on the lower side of the above, and is inserted around the outer tube 29 from the upper guide bracket 27 and wound around the wire drum 23. The wire drum 23 has, for example, a winding side for winding the inner cable 17a on one side and a winding side for feeding the inner cable 17b on the other side during normal rotation or reverse rotation.

The outer tubes 21 and 29 have a wire drum 23 at one end.
The bracket 31 is fixedly supported, and the other end side is movably supported with respect to the guide bracket 27.
The bearing side of each outer tube 21, 29 is constantly urged to the outside (arrow A in FIG. 2) by urging springs 33, 35 interposed in the guide bracket 27. This allows
Inner cable 17a or 17 at the time of operation on the feeding side
In b, tension and tension are given by relative movement of the outer tubes 21 and 29 (chain line and solid line in FIG. 1).

On the other hand, the wire drum 23 is fixed to a gear shaft 43 of a reduction gear 41 including a transmission gear and a pinion that mesh with a take-out shaft 39 of a drive motor 37 that can rotate in the forward and reverse directions.

FIG. 6 shows a motor circuit of the drive motor 37. In the motor circuit, reference numeral 45 represents a hand operation switch, which can be switched to the first terminal 45a and the second terminal 45b. Second terminal 45 of hand operation switch 45
A descending relay R ₂ is connected to b. Also, the first
A load check switch 47, an operation area detection switch 49, and a rising relay R ₁ described later are connected in series to the terminal 45a.

Lifting relay switch r ₁ excited by elevating relay R ₁ is connected to a motor first terminal 37a side of the drive motor 37. Also, lowering relay switch r ₂ excited by lowering relay R ₂ is connected to the motor a second terminal 37b of the drive motor 37, lifting relay switches r ₁ and lowering relay switch r ₂ is normally a ground terminal P ₁ side When the relays are connected and a current flows through the relays R ₁ and R ₂ , the relays are switched to the operation terminals P ₂ and P ₂ side.

In addition, each operating terminal P ₂ , P ₂ is a power source 49 (battery)
Connected with.

On the other hand, the load check switch 47 is always in the contact state, and as shown in FIGS. 2 and 3, the load check switch 47 faces the conductive movable terminal 51 supported at one end of the outer tube 21 on the index side. It has a fixed terminal 53 and a second fixed terminal 55. The movable terminal 51 is moved along the insulating guide member 57 by the relative movement of the outer tube 21 to move the first and second movable terminals.
The operating position I (the third position) in which the fixed terminals 53 and 55 are in contact with each other.
It is slidable between a broken line) and a non-operating position II (solid line in FIG. 3) that disconnects the first and second fixed terminals 53 and 55, and always faces the operating position I. In addition, the first and second fixed terminals 53,
55 is printed on the guide member 57.

The operating area detection switch 49 is provided on the cam plate 5 as shown in FIG.
9 is connected to the normally closed contact C ₁ when acting on the first cam surface 61, and is switched from the normally closed contact C ₁ to the normally open contact C ₂ when acting on the second cam surface 63 of the cam plate 59. Will be replaced. The normally open contact C ₂ is connected to the first terminal 45 a of the hand operation switch 45, and the normally closed contact C ₁ is connected to the switch terminal of the load check switch 47.

The cam plate 59 is controlled by the drive motor 37 so that it can rotate normally and reversely.

That is, the transmission gear 67 is provided on the cam shaft 65 of the cam plate 59, and the transmission gear 67 meshes with the transmission gear of the reduction gear 41.

The first cam surface 61 of the cam plate 59 corresponds to the range from the door waist portion 69 to the weather strip 71 before the window panel 15 hits, and corresponds to the operation area L ₁ of the gear plate 11. In addition, the second of the cam plate 59
The cam surface 63 corresponds to a range from before the window panel 15 hits the weather strip 71 until it abuts, and corresponds to the load area L ₂ of the carrier plate 11.

In addition, 73 is a door sash and 75 is a guide rail, respectively.

In the thus configured wire type window regulator and switching the hand operating switch 45 to the first terminal 45a, from the power supply 49 current as elevating relay R ₁ a load check switch 47 and normally closed contacts C ₁ An electric current flows. As a result, the rising relay switch r ₁ is switched from the ground contact P ₁ to the working contact P ₂ ,
Current flows from the motor first terminal 37a to the motor second terminal 37b
And the wire drum 23 rotates normally. Wire drum 2
With the normal rotation of 3, the carrier plate 11 continues to move upward, and the window panel 15 comes into contact with the weather strip 71 to obtain a fully closed state.

In this case, the operation area detection switch 49 is the first cam surface 61.
Normally closed contact point C when moving from the second cam surface 63 to
Switching from ₁ to the normally open contact C ₂ , the current flows to the ascending relay R ₁ via the normally open contact C _2, and the cascaded operation state is secured. Next, when the hand operation switch 45 is switched to the second terminal 45b, the descending relay R
_A current flows through the switch ₂ , and the descending relay switch r ₂ switches from the ground contact P ₁ to the working contact P ₂ . As a result, a current flows from the motor second terminal 37b to the motor first terminal 37a, and the wire drum 23 reversely rotates. The carrier plate 11 continues to descend due to the reverse rotation of the wire drum 23, and the fully opened state is obtained.

On the other hand, when the carrier plate 11 rises in the operation area L ₁ , if the hand or neck of an occupant is caught, the inner cable 1
A large load acts on the outer tube 21, and the outer tube 21 is displaced against the biasing spring 33 so as to return to the straight state (chain line in FIG. 1). As a result, the outer tube 21 moves in the direction of arrow B, and the movable terminal 51 slides to the non-actuated position II by the movement due to the relative movement, and the switch terminal of the load check switch 47 is disconnected. As a result, the current flowing through the rising relay R ₁ is cut off, and the rising relay switch r ₁
Is switched to the ground terminal P _1, and the operation of the drive motor 37 is stopped. Therefore, no serious injury will occur. In this case, set the hand operation switch 45 to the second terminal 45b.
By switching to the side, the window panel 15 comes down.

In this embodiment, the window regulator that opens and closes in the vertical direction has been described, but it may be used in a sliding window that opens and closes in the horizontal direction.

[Effects of the Invention] As described above, the wire-type window
According to the regulator, the motor circuit of the drive motor can be disconnected by the movement of the outer tube relative to each other, so that the structure of the safety mechanism is simplified. Further, since the outer tube is used, it is not exposed to the outside, which is favorable in terms of appearance quality and facilitates assembly.

[Brief description of drawings]

FIG. 1 is an explanatory view of a wire type window regulator of the present invention, FIG. 2 is a vertical sectional view of a portion A in FIG. 1, FIG. 3 is a schematic view of a load check switch, and FIG. FIG. 5 is an explanatory diagram in which a detection switch is provided, FIG. 5 is an overall explanatory diagram, and FIG. 6 is a motor circuit diagram of the drive motor. Description of main drawing symbols 1 ... Guide rail 11 ... Carrier plate 17 ... Inner tube 21 ... Outer tube 23 ... Wire drum 37 ... Drive motor

Claims (1)

[Scope of utility model registration request] 1. A wire drum which is controlled by a drive motor so as to be capable of normal rotation and reverse rotation, an inner cable which is controlled by the wire drum and is arranged along a guide rail, and an inner cable connected to the inner cable and connected to the guide rail. A wire-type window regulator including a carrier plate movable along an operating region to a load region and an outer tube through which the inner cable is inserted, wherein one end of the outer tube is urged by a urging means and the inner tube is urged. It is supported so as to be movable relative to the cable, and the motor circuit of the drive motor is disconnected by the movement of the outer tube that moves relatively with an excessive load applied to the inner cable, at least within the operating area of the carrier plate. Wire-type window characterized by Regulator.