Title:
ROTATION PREVENTING DEVICE FOR SCREW COMPONENT, AND RAILROAD VEHICLE AUXILIARY POWER SOURCE DEVICE TO WHICH COMPONENT IS INSTALLED USING THE DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/018963
Kind Code:
A1
Abstract:
A conventional device for preventing rotation of a bolt is made for a case where the device can be operated from both the bolt side and the nut side. It has been therefore impossible to fasten the bolt and nut together at a place where the device can be operated only from one side and to apply loosening prevention to the bolt. A rotation prevention device of this invention has a body section (7B) having a shaft, on the outer surface of which shaft an external thread is provided, and having a through-hole (7A), through which the shaft of a screw component (4) with a head (4A) with a greater diameter than the shaft can pass and which has a smaller diameter than the head; an engagement section (7C) engaging with the side surface of either a member (2) to be installed or a member (3) on which installation is made; and a head hold-down section (7D) fixed to the body section (7B) so as to clasp and fasten, between the head hold-down section and the body section (7B), the head (4A) of the screw component (4).
Inventors:
HIROTOMI MASAMI (JP)
Application Number:
PCT/JP2005/013971
Publication Date:
February 23, 2006
Filing Date:
July 29, 2005
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
HIROTOMI MASAMI (JP)
HIROTOMI MASAMI (JP)
International Classes:
B61C17/12; F16B39/10; F16B41/00
Foreign References:
| JPS622824U | 1987-01-09 | |||
| JPS60124808U | 1985-08-22 | |||
| JPH09263239A | 1997-10-07 |
Attorney, Agent or Firm:
Takahashi, Shogo c/o MITSUBISHI DENKI KABUSHIKI KAISHA (Corporate Intellectual Property Center 7-3,
Marunouchi 2-chom, Chiyoda-ku Tokyo, JP)
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