Title:
車両ドアラッチ装置
Document Type and Number:
Japanese Patent JP6867250
Kind Code:
B2
Abstract:
A power unit for a powered cinching mechanism with a favorable level of operational noise is provided. A door latch apparatus includes latch unit 12 and power unit 14. Latch unit 12 has latch 16 that engages striker 15, ratchet 17 that engages latch 16 and first cinching lever 25 that displaces latch 16 from a half-latched position to a full-latched position. Latch unit 12is attached to an end portion of a vehicle door. Power unit 14 includes motor 67, cable drum 68, deceleration mechanism 69 and closed-type housing 63 that houses them. Operational noise at 300mm right above the housing of power unit 14 is 42.2 to 40.9 dB at a supply voltage to the motor of 9V, 47.5 to 43.9 dB at a supply voltage of 12V, and 49.7 to 46.5 dB at a supply voltage of16 V. Deceleration mechanism 69 includes a worm gear and a helical gear.
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Inventors:
Nagaoka Tomoji
Hiroaki Fujiwara
Hiroaki Fujiwara
Application Number:
JP2017139726A
Publication Date:
April 28, 2021
Filing Date:
July 19, 2017
Export Citation:
Assignee:
Mitsui Kinzoku Act Co., Ltd.
International Classes:
E05B77/36; B60J5/00; E05B79/10; E05B81/20; E05B81/34; E05B85/02; E05B85/26
Domestic Patent References:
| JP2009264052A | ||||
| JP2016108797A | ||||
| JP4116567U | ||||
| JP1230878A | ||||
| JP200332973A | ||||
| JP6325768U |
Attorney, Agent or Firm:
Junichiro Shinseki
Chiaki Shinseki
Chiaki Shinseki