Title:
RETAINER WITH ANTI-THEFT FUNCTION AND LOCKING FUNCTION
Document Type and Number:
Japanese Patent JP3388343
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To add a locking function against vibration and a anti-theft function to a retainer which can connect and remove an apparatus and a frame manually without using a tool.
SOLUTION: The hexagonal head 58 of the nut 38 of a retainer 30 is fitted to the hexagonal search hole of an operation collar 40 with one-way ratchet teeth 66, impossible to rotate relatively and allowable to displace in the axial direction. The operation collar 40 is energized to a lock member 36 by a spring 42. When an apparatus is fixed to a frame, an operation key 44 is inserted to the operation collar 40 and rotated clockwise, to fasten a nut 38. Since the ratchet teeth 66 of the operation collar 40 are engaged with the ratchet teeth 56 of the lock member 36 in the fastening condition, the nut 38 is never loosened even though vibration is received. The anti-theft purpose can be accomplished when the operation key 44 is being pulled out.
Inventors:
Kozo Hotta
Application Number:
JP33947698A
Publication Date:
March 17, 2003
Filing Date:
November 30, 1998
Export Citation:
Assignee:
NEC Engineering Co., Ltd.
International Classes:
F16B35/04; F16B1/02; F16B39/24; F16B39/282; F16B39/32; F16B41/00; (IPC1-7): F16B39/32; F16B1/02; F16B41/00
Domestic Patent References:
| JP1244697A | ||||
| JP4882262A | ||||
| JP53160568U | ||||
| JP60180820U | ||||
| JP5796003U | ||||
| JP5937419U | ||||
| JP61177481U |
Attorney, Agent or Firm:
Hiroshi Ito
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