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Title:
SCREW DROP PREVENTIVE DEVICE
Document Type and Number:
Japanese Patent JP2005308153
Kind Code:
A
Abstract:

To provide a screw drop preventive device which is adaptable to the difference in shape of a screw head part and recyclable for a long time.

A screw cap 3 is formed of synthetic resin material, a plurality of locking piece parts 3e are formed on a thin-walled cylindrical part 3b, a locking projecting part 3f is formed on the outer circumference of each locking piece part 3e, and a regulation-projecting part 3g is formed on the inner circumference thereof. In a second member 2, a cap insertion cylindrical part 2d is opened upwardly on the side of the outer circumference of a screw insertion hole 2c, and an engagement groove 2e is formed in the cap insertion cylindrical part 2d. The second member 2 and the first member 1 are screwed and fixed to each other by a screw S via the screw insertion hole 2c, the thin-walled cylindrical part 3b of the screw cap 3 is inserted in the cap insertion cylindrical part 2d, the locking projecting part 3f is engaged within the engagement groove 2e, and the regulation-projecting part 3g of the screw cap 3 is arranged facing a screw head part Sa.


Inventors:
KONDO YASUSHI
Application Number:
JP2004128354A
Publication Date:
November 04, 2005
Filing Date:
April 23, 2004
Export Citation:
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Assignee:
KEIHIN CORP
International Classes:
F16B41/00; (IPC1-7): F16B41/00
Domestic Patent References:
JPS62151422U1987-09-25
JPS57146909A1982-09-10
JPS59113509U1984-07-31
JPS51129968U1976-10-20
JPS5879121U1983-05-28
JP2001280332A2001-10-10
Attorney, Agent or Firm:
Hiroshi Ikeda



 
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