Invention Grant
- Patent Title: Lock device for linear motion rod
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Application No.: US15102199Application Date: 2014-10-09
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Publication No.: US09885201B2Publication Date: 2018-02-06
- Inventor: Mitsuo Miyamoto , Masayuki Kudo
- Applicant: SMC CORPORATION
- Applicant Address: JP Chiyoda-ku
- Assignee: SMC CORPORATION
- Current Assignee: SMC CORPORATION
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-253495 20131206
- International Application: PCT/JP2014/077035 WO 20141009
- International Announcement: WO2015/083440 WO 20150611
- Main IPC: F15B15/26
- IPC: F15B15/26 ; E05C1/08 ; B60T1/06 ; E05B51/02 ; E05B55/00 ; E05B61/00 ; F16D63/00 ; F16D49/10 ; F16D121/16 ; F16D125/66

Abstract:
A lock device body includes a brake member fastening a rod to lock the rod, a piston that press-opens a pair of pressure-bearing sections of the brake member by using an expansion member to unlock the rod, and an operation element for manually operating the piston, the operation element includes a shaft threaded in a screw hole, a pressure plate formed on one end of the shaft and located in the pressure chamber, and a sealing member disposed on the pressure plate. When the shaft is threaded into a lock release position, an operation end becomes an unextending state while the pressure plate displaces the piston to the lock release position, and, when the shaft is threaded back to a lock position, the operation end extends from the screw hole to the outside while the sealing member seals the screw hole to isolate the screw hole from the pressure chamber.
Public/Granted literature
- US20160312502A1 LOCK DEVICE FOR LINEAR MOTION ROD Public/Granted day:2016-10-27
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