Title:
開閉器
Document Type and Number:
Japanese Patent JP5248414
Kind Code:
B2
Abstract:
A switch including a movable side contacting portion (3 1 ), a fixed side contacting portion (3 2 ) arranged to face the movable side contacting portion (3 1 ), a movable conductor (4) held slidably in the movable side contacting portion (3 1 ) which is to be inserted freely in the fixed side contacting portion (3 2 ), a first coil shaped contact shoe (5 1 ) loaded in a ring shaped groove (7 1 ) formed at an inner circumference of the movable side contacting portion (3 1 ), and a second coil shaped contact shoe (5 2 ) loaded in a ring shaped groove (7 2 ) formed at an inner circumference of the fixed side contacting portion (3 2 ). Here each of the first and the second coil shaped contact shoes (5 1 ,5 2 ) is a ring shape formed by jointing both ends of a coil spring at a joint portion (6 2 ), each of the joint portions (6 2 ) is located at an apex of an outer circumference of each of the first and second ring shaped contact shoes (5 1 ,5 2 ), and each of the first and second ring shaped contact shoes (5 1 ,5 2 ), contacts slope faces (8 2 ) formed at both sides of a bottom portion of the ring shaped groove (7 1 ,7 2 ).
Inventors:
Ikuo Miwa
Hironori Yanaga
Hironori Yanaga
Application Number:
JP2009127857A
Publication Date:
July 31, 2013
Filing Date:
May 27, 2009
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01H33/65; H01H1/38; H01H31/02; H01H31/32; H01H33/64; H01R4/48; H02B13/02; H02B13/075
Domestic Patent References:
| JP63108629A | ||||
| JP2006518090A | ||||
| JP52138264U |
Attorney, Agent or Firm:
Toshio Kanata
Hiroshi Shimura
Hiroshi Shimura