Title:
CONNECTION MEMBER COMPRISING SCREW AND SLEEVE CONNECTED TO THE SCREW IN RESTRAINED STATE
Document Type and Number:
Japanese Patent JP2009127863
Kind Code:
A
Abstract:
To present a preassembled unit of a connection member without using a special screw.
This connection member 1 comprises a screw 2 and a sleeve 3 mounted to the screw in a restrained state. The screw includes a head part 4 and a shaft 5. On the shaft, a threaded part 7 is formed in a state separated from the head part, a shaft part 6 is formed in a state adjacent to the head part, and the shaft part has a reduced diameter relative to the outer diameter of the threaded part. The sleeve includes a first narrowing part 10 having a diameter smaller than the outer diameter of the threaded part. The first narrowing part constitutes a non-elastic undercut along with an end region of the threaded part adjacent to the head part.
Inventors:
HARTMANN GUNTHER
Application Number:
JP2008295132A
Publication Date:
June 11, 2009
Filing Date:
November 19, 2008
Export Citation:
Assignee:
KELLERMANN FA RUDOLF
International Classes:
F16B5/02; F16B39/24; F16B41/00; F16B43/00
Domestic Patent References:
| JP2001020935A | 2001-01-23 | |||
| JPS5730408U | 1982-02-17 | |||
| JPH09502241A | 1997-03-04 |
Foreign References:
| US7985042B1 | 2011-07-26 | |||
| US4430033A | 1984-02-07 |
Attorney, Agent or Firm:
▲吉▼川 俊雄