JPH0631107Y2 - Power window equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a power window device in consideration of safety so as not to be injured even if a hand or a finger is caught in a window glass.

[Conventional technology]

As a conventional power window device, there is one as shown in FIG. 3, for example. In this figure, 1 is a motor, 2
Is a link mechanism driven by the motor 1, and 3 is a window glass attached to the link mechanism 2.

Then, when an occupant pushes an operation button (not shown), the motor 1 rotates, and the rotation of the motor 1 is transmitted to the link mechanism 2 via a decelerating sector gear (not shown). Then, the X-shaped arm that constitutes the link mechanism 2 expands and contracts, whereby the window glass 3 moves up and down in the arrow direction.

[Problems to be solved by the invention]

However, in such a conventional power window device, when trying to open and close the window glass 3 by one-touch operation by the automatic mechanism, the window glass 3
The motor 1 continues to rotate at a constant torque until the end of the motor reaches a predetermined position. Therefore, when trying to close the windowpane 3, the occupant's hands or fingers or the neck of the child is pinched between the upper end of the windowpane 3 and the window frame,
There was a problem that I could get injured unexpectedly.

The present invention has been made by paying attention to such a conventional problem, and solves the above problem by adding a mechanism that functions as a safety device when a hand or a finger is caught in a window glass. The purpose is to do.

[Means for solving problems]

In the power window device according to the present invention, one of the clutch members is provided in the gear that interlocks with the rotation shaft of the motor, and the other of the clutch members that interlock with the gear is urged toward the one to frictionally engage. Elastic means is provided, and when a force larger than the pressing force by the elastic means acts on the engagement surface of the clutch member when the window glass is raised, one rotation of the clutch member resists the pressing force of the elastic means. Switch means for detecting the other movement of the clutch member that has moved in the axial direction and rotating the motor in the reverse direction.

[Action]

Since the clutch member in this invention immediately idles when a hand or finger is caught in the window glass, the hand or finger is not pinched with a stronger force, and the switch means detects this idleness. Then, the motor is rotated in the reverse direction and the window glass is lowered.

〔Example〕

The invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of the present invention.

First, the configuration will be described. 4 is a motor, 5 is a drive gear attached to the tip of the rotary shaft of the motor 4, 6 is a driven gear that meshes with the drive gear 5, 7 is one clutch member attached to the driven gear 6, Reference numeral 8 denotes the other clutch member having an engagement surface that engages with the engagement surface of one clutch member 7 at an angle θ, and 9 meshes with a gear portion formed on the other clutch member 8, A deceleration sector gear 10 for transmitting the torque of the motor 4 to a link mechanism (not shown) is interposed between the other clutch member 8 and the fixed wall 11 so that the other clutch member 8 faces the one clutch member 7. A coil spring 12 as an elastic means for elastically urging and biasing has a plunger 13 positioned slightly away from the other clutch member 8, and a contact point 14 which is brought into contact with and separated from the plunger 13 by the plunger 13.
A switch means having 15; a relay electrically connected to the motor 4 and the switch means 12; 16 a relay 15
The coils 17 and 18 and 19 are contacts that are switched by energizing the coil 16, and 20 and 21 are a motor power supply and a control power supply, respectively.

Next, the operation will be described. First, when trying to close the window glass, when an operation button (not shown) is pressed, a current is supplied from the motor power source 20 to the motor 4, and the drive gear 5 at the tip of the rotation shaft rotates. As a result, the driven gear 6, the clutch member 7, the clutch member 8, and the sector gear 9 also rotate,
A window mechanism is raised to a predetermined position by driving a link mechanism (not shown). At this time, the clutch member 7 and the clutch member 8 are merely engaged with each other at the engagement surface having the inclination angle θ, but due to the biasing force of the coil spring 10, the mechanism below the sector gear 9 is driven. A sufficient frictional engagement force is secured.

In such a process, when a hand, a finger, or other foreign matter is caught between the window glass and the window frame, the clutch member 7 and the clutch member 8 slip on their respective engaging surfaces and run idle. Then, the clutch member 8 is pressed against the urging force of the coil spring 11 to the right as shown in FIG. At this time, the plunger 13 of the switch means 12 comes into contact with the back surface of the clutch member 8, so that the contact 14 is turned on, and the current from the control power supply 21 flows through the coil 16. When the coil 16 is energized, the contacts 17, 18 and 19 are switched to the upper side as shown in FIG. When the contacts 18 and 19 are switched to the upper side, the motor 4 rotates in the reverse direction,
The window glass will immediately descend, and the occupant can quickly pull out the sandwiched hands, fingers, or other foreign matter from between the window glass and the window frame. By switching the contact point 17 to the upper side, a so-called self-holding circuit is formed, and even if the contact point 14 which has been in the on state is immediately in the off state, the coil 16 is continuously energized. Has become.

[Effect of device]

As described above, according to the present invention, the configuration is such that the gear (6) interlocking with the rotary shaft of the motor (4) is provided with one clutch member (7) and interlocking with the gear (9). The other side (8) of the clutch member that has been made
An elastic means (10) is provided for urging and frictionally engaging the clutch member (7, 8) with a force larger than the pressing force by the elastic means (10) when the window glass is raised.
One of the clutch members (7) when acting on the engagement surface of
The switch means (12) for detecting the movement of the other (8) of the clutch member that has moved in the axial direction against the pressing force of the elastic means due to the rotation of the switch and rotating the motor in the reverse direction is provided. Even if a hand or a finger is caught in the window glass, there is an effect that a power window device excellent in safety can be realized without being injured.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a main part of a power window device according to the present invention, FIG. 2 is an explanatory diagram for explaining the operation of the power window device shown in FIG. 1, and FIG. 3 is an overall configuration of a conventional power window device. FIG. 1, 4 ... Motor, 2 ... Link mechanism, 3 ... Window glass, 7, 8 ... Clutch member, 9 ... Sector gear, 10
...... Elastic means (coil spring), 11 …… Fixed wall,
12 ... Switch means

Claims (1)

[Scope of utility model registration request] 1. A power window device in which a rotational force of a motor (4) is transmitted to a link mechanism (2) through a gear (9) and a window glass (3) attached to the link mechanism is moved up and down. , One of the clutch members (7) is provided on the gear (6) that is interlocked with the rotating shaft of the motor (4), and the other (8) of the clutch members that are interlocked with the gear (9) is the one (7) An elastic means (10) for urging and frictionally engaging the window member is provided, and a force larger than the pressing force by the elastic means (10) when the window glass is raised is applied to the clutch members (7, 8). When one of the clutch members acts on the surface, one of the clutch members (7) rotates to detect the movement of the other (8) of the clutch members that has moved axially against the pressing force of the elastic means and reversely rotates the motor. Providing switch means (12) for Power window apparatus according to claim.