Window regulator device

Abstract

A position detection unit is provided with a rotation member which rotates by the rotational driving force of an output shaft; an operation lever which is not engaged with the rotation member when the open or closed position of a window pane is at a location that does not belong to a dead zone region, which is engaged with the rotation member when the open or closed position of the window pane is at a location that belongs to a dead zone region, and which, when thus engaged, performs rotational operation by the rotational driving force of the output shaft, this force being transmitted via the rotation member; and a dead zone region detection switch which performs changeover operation on the basis of the rotational operation of the operation lever. The detection accuracy improves because the dead zone region is detected on the basis of rotational operation of the operation lever.

Description

technical field [0001] The present invention relates to a window lifter for automatically opening and closing a window glass of a vehicle by power generated by a power source such as a motor. In particular, the present invention relates to a window lifter including an opening / closing position detection unit that detects whether the opening / closing position of a window glass falls within a predetermined specific position area. Background technique [0002] The window glass attached to the side window, roof window, etc. of the vehicle has been opened and closed manually in the past, but until now, the window glass of most vehicles has been automatically opened and closed by power generated by a power source such as an electric motor. In the case of automatically closing the window glass, there is a concern that a foreign object may be caught between the window glass and the window frame. At present, a window lift device has been developed that has the following functions. Whe...

AI Technical Summary

Problems solved by technology

When using such a tiny cam member to detect whether the opening and closing position of the window glass is in the dead zone, there is a possibility that the detection accuracy will be greatly deteriorated due to a slight assembly error.

In addition, in order to prevent deterioration of the detection accuracy, when the shape of the cam member and the mounting angle of the pinion are strictly managed, the manufacturing cost and the assembly cost increase.

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