IP Library › Granted Patent US 9,428,935
Granted Patent B2
US 9,428,935 · App. 14/585,836 · Granted Aug 30, 2016

Driving device of vehicle door latch unit

Inventor: Kohei Yamashita (Kanagawa, JP)
Assignee: MITSUI KINZOKU ACT CORPORATION
E05B1/00
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Quick Facts
Patent No.
US 9,428,935
App. No.
14/585,836
Granted
Aug 30, 2016
Kind
B2
Abstract

A driving device includes: a neutral switch switches over from ON to OFF when an automatic closing function by a motor is operated and a first cam surface is released from a contact with the neutral switch; and a gear detection switch switches over from ON to OFF when an automatic closing function by the motor is operated and a second cam surface is released from a contact with the gear detection switch, wherein the operation of the automatic closing function by the motor is configured to be initiated by switch-over of a ratchet switch of the door latch unit from OFF to ON and ended by switch-over of the neutral switch from OFF to ON, and the gear detection switch is configured to switch over from OFF to ON by coming into contact with the second cam surface when the automatic releasing function by the motor is operated.

Claims (8)

1. A driving device of a door latch unit, the driving device comprising:

a neutral switch that switches over from ON to OFF, when an automatic closing function by a motor is operated and a first earn surface, is released from a contact with the neutral switch; and

a gear detection switch that switches over from, ON to OFF, when aft automatic closing function by the motor is operated and a second cam-surface is released from a contact with the gear detection switch, wherein

the operation of the automatic closing function by the motor is configured to be initiated by switch-over of a ratchet switch of the door latch unit from OFF to ON,

the operation of the automatic closing function by the motor is configured to be ended by switch-over of the neutral switch from, OFF to ON,

the gear detection switch is configured to switch over from OFF to ON by coming into contact with the second cam surface again when the automatic releasing function by the motor Is operated, and

the first cam surface and the second cam surface form a continuous surface in a circumferential direction,

wherein the second cam surface is set at a height where the second cam surface does not come Into contact with the neutral switch and the second earn surface extends from an end portion of the first cam surface.

Assignments (3)
CHANGE OF ADDRESS Recorded Feb 26, 2026
From: MITSUI KINZOKU ACT CORPORATION
To: MITSUI KINZOKU ACT CORPORATION
Reel/Frame 074986/0415 →
CHANGE OF NAME Recorded Feb 26, 2026
From: MITSUI KINZOKU ACT CORPORATION
To: HI-LEX ACT CORPORATION
Reel/Frame 074977/0251 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2014
From: YAMASHITA, KOHEI
To: MITSUI KINZOKU ACT CORPORATION
Reel/Frame 034601/0092 →
Priority Claims (1)
JP 2014-178598 · Sep 2, 2014 · national
Continuity (1)
Related Publication 20160062365A1 · Mar 3, 2016