Invention Grant
- Patent Title: Switchgear and switchgear operating mechanism
- Patent Title (中): 开关柜和开关柜操作机构
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Application No.: US12881880Application Date: 2010-09-14
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Publication No.: US08420969B2Publication Date: 2013-04-16
- Inventor: Satoshi Marushima , Yoshiaki Ohda , Yoshikata Kobayashi , Masaharu Shimizu , Hirokazu Takagi
- Applicant: Satoshi Marushima , Yoshiaki Ohda , Yoshikata Kobayashi , Masaharu Shimizu , Hirokazu Takagi
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-086511 20080328
- Main IPC: H01H5/00
- IPC: H01H5/00

Abstract:
An embodiment of a switchgear has: a closing shaft; a main lever fixed to the closing shaft and associated with a movable contact; a cutoff spring; a sub-shaft; a sub-lever and a latch lever which are connected to the sub-shaft; a roller pin mounted to the leading end of the latch lever; a latch; a latch returning spring for urging the latch; a latch pin fixed to the latch; and a ring mounted to the latch pin so as to be movable in the radial direction of the latch pin. In the closed state, the roller pin presses the leading end of the latch. In power cutoff operation, latch is pulled so as to permit rotation of the latch, engagement between the roller pin and the leading end of the latch is disengaged, and the sub-shaft is rotated by urging by the cutoff spring.
Public/Granted literature
- US20110000768A1 SWITCHGEAR AND SWITCHGEAR OPERATING MECHANISM Public/Granted day:2011-01-06
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