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Title:
WIPER ARM
Document Type and Number:
WIPO Patent Application WO/2014/115820
Kind Code:
A1
Abstract:
Provided is a wiper arm comprising urging means for generating pushing force for pushing a wiper blade against a surface to be wiped, wherein the appropriate pushing force is ensured and the wiper arm can be made thinner. A wiper arm (1) comprises a link mechanism (10) rotatably attached to a retainer (4), and the force of a spring (7) is applied between an arm head (2) and the retainer (4) via the link mechanism (10). During the normal state of use of the wiper arm (1), horizontal force (F) from the spring (7) is converted via the link mechanism (10) to vertical force (W), and an appropriate moment is generated between the arm head (2) and the retainer (4). When the wiper arm (1) is in a lock-back state, the link mechanism (10) functions as a toggle mechanism and generates great holding force in order to hold the wiper arm (1) in the lock-back state.

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Inventors:
SHIMIZU Yuta (311 aza-Numagashira, ooaza-Shimotakayanagi Kazo-shi Saitama, 85, 〒3478585, JP)
Application Number:
JP2014/051421
Publication Date:
July 31, 2014
Filing Date:
January 23, 2014
Export Citation:
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Assignee:
NIPPON WIPER BLADE CO.,LTD. (311 aza-Numagashira, ooaza-Shimotakayanagi Kazo-shi Saitama, 85, 〒3478585, JP)
International Classes:
B60S1/34
Foreign References:
JPH0744190U1995-11-07
JPS592658U1984-01-09
JPH03284447A1991-12-16
JP2009045971A2009-03-05
JP2008056051A2008-03-13
Other References:
See also references of EP 2949522A4
Attorney, Agent or Firm:
TOTSUKA Kiyotaka (1-18-5-302 Ebisu, Shibuya-ku Tokyo, 13, 〒1500013, JP)
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