Title:
WASHER WITH TERMINAL INDICATING TEMPORARY TIGHTENING OF SCREW
Document Type and Number:
Japanese Patent JPH06307422
Kind Code:
A
Abstract:
PURPOSE: To provide a washer which clarifies a temporary tightened condition of a bolt and a nut.
CONSTITUTION: An indicating terminal 13 is provided on a periphery of a main body of a washer 11, which terminal 13 has an end face is painted to have proper color, indicates that a nut 52a is temporarily tightened, and is removed when the nut 52a is really tightened. In the case that the indicating terminal 13 remains, it is easily judged that real tightening or its conformation is not completed. Real tightening is thus executed with certainty, while reliability of a device is improved.
Inventors:
HASEBE KUNIHIKO
Application Number:
JP11386493A
Publication Date:
November 01, 1994
Filing Date:
April 16, 1993
Export Citation:
Assignee:
HITACHI ELECTR ENG
International Classes:
F16B31/02; F16B43/00; (IPC1-7): F16B31/02; F16B43/00
Attorney, Agent or Firm:
Kajiyama Bozen (1 person outside)