Title:
POWER TRANSFER SWITCH
Document Type and Number:
WIPO Patent Application WO/2011/125120
Kind Code:
A1
Abstract:
Disclosed is a power transfer switch that is capable of generating identical contact pressure on either fixed contact to the left and right of a single compression spring. The power transfer switch rotates a crossbar (1) that is equipped with a movable contact (3) and brings the crossbar into contact with one of the fixed contacts (4, 5) disposed on the left and right sides of the crossbar (1). The crossbar (1) has a noncircular cross section with projecting pieces (21) on the left and right, and the rotation angle thereof is greater than the allowable rotation angle of the movable contact (3) between the left and right fixed contacts (4, 5). A through hole (23), into which the crossbar (1) is inserted with play, is formed in the base of the movable contact (3), a stepped section (24) that receives the projecting piece (21) on the crossbar (1) and a spring housing section (25) that extends in the central axis direction of the movable contact (3) are formed in the interior of the through hole (23), and the movable contact (3) is held elastically by the crossbar (1) by housing the compression spring (26) in the spring housing section (25).
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Inventors:
YOSHIDA, Katsuhiro (2-31, Kouzouji-cho, Kasugai-sh, Aichi 13, 〒4870013, JP)
吉田勝弘 (〒13 愛知県春日井市高蔵寺町２－３１株式会社新愛知電機製作所内 Aichi, 〒4870013, JP)
吉田勝弘 (〒13 愛知県春日井市高蔵寺町２－３１株式会社新愛知電機製作所内 Aichi, 〒4870013, JP)
Application Number:
JP2010/002527
Publication Date:
October 13, 2011
Filing Date:
April 07, 2010
Export Citation:
Assignee:
AICHI ELECTRIC WORKS CO., LTD. (2-31, Kouzouji-cho Kasugai-sh, Aichi 13, 〒4870013, JP)
株式会社 新愛知電機製作所 (〒13 愛知県春日井市高蔵寺町２－３１ Aichi, 〒4870013, JP)
YOSHIDA, Katsuhiro (2-31, Kouzouji-cho, Kasugai-sh, Aichi 13, 〒4870013, JP)
株式会社 新愛知電機製作所 (〒13 愛知県春日井市高蔵寺町２－３１ Aichi, 〒4870013, JP)
YOSHIDA, Katsuhiro (2-31, Kouzouji-cho, Kasugai-sh, Aichi 13, 〒4870013, JP)
International Classes:
H01H31/28; H01H33/40; H01H33/42
Attorney, Agent or Firm:
WATANUKI, Tatsuo et al. (Najima, Yamamoto & Watanuki Patent Office Nagoya Building Higashikan 9F, 2-25, Meieki 4-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
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Claims:
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