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Patent Searching and Data


Title:
DOOR LATCH DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/075989
Kind Code:
A1
Abstract:
This door latch device (100) for a vehicle is provided with: a pawl (120) which can engage with a latch (110) configured so as to rotate in a door closing direction by engaging with a striker (20); and a pawl return spring (130) which elastically presses the pawl (120) toward the engagement position where the pawl (120) and the latch (110) engage with each other. The pawl return spring (130) is provided with: a coiled spring section (131) formed in a coil shape and having a coil center located at a position at a distance from the rotation center of the pawl (120); and an extension arm (132) which extends from one end (131a) of the coiled spring section (131) along the contact receiving surface (121) of the pawl (121). The extension arm (132) is configured so as to come into contact with the shear surface (second region))(121b) of the contact receiving surface (121) of the pawl (120), the shear surface (second region))(121b) being located off the fracture surface (first region)(121a) of the contact receiving surface (121) and having relatively high surface roughness.

Inventors:
NISHIO TAKASHI (JP)
Application Number:
PCT/JP2014/072597
Publication Date:
May 28, 2015
Filing Date:
August 28, 2014
Export Citation:
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Assignee:
AISIN SEIKI (JP)
International Classes:
E05B85/20; B60J5/00
Domestic Patent References:
WO2011102057A12011-08-25
WO2011102057A12011-08-25
Foreign References:
JP2014134087A2014-07-24
Other References:
See also references of EP 3073036A4
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (JP)
Patent business corporation Pros Peck patent firm (JP)
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