Title:
FASTENING TOOL
Document Type and Number:
Japanese Patent JP3744675
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that work is difficult, an exclusive tool is required, a structure is complex, there is possibility that jointing strength is dispersed per product, final fastening can not be executed after temporary fastening, and there is worry whether or not stress can be assuredly transmitted.
SOLUTION: This fastening tool is equipped with a bolt main body 2, a first cylindrical sleeve 3A and a second cylindrical sleeve 3B which are arranged in order from an end side around the periphery of the bolt main body 2, a washer 5 and a nut 4. The end of the first cylindrical sleeve 3A and the end of the bolt main body 2 are threadedly connected to each other. The nut 4 is threadedly connected to the screw part 2b of the bolt main body 2 through the washer 5. When the nut 4 is fastened by grasping a pin tail 2c formed at the rear end of the bolt main body 2 by a tool, the first cylindrical sleeve 3A is bent and deformed so as to form a rear side nut. When the nut 4 is further fastened, members 6, 7 are frictionally connected to each other having a required bolt tension between the rear side nut collided with the rear side end surface of the member 6 and the front side nut 4.
Inventors:
Nobutaka Tamura
Application Number:
JP6747698A
Publication Date:
February 15, 2006
Filing Date:
March 17, 1998
Export Citation:
Assignee:
I.N.G Co., Ltd.
International Classes:
E04B1/24; F16B13/04; F16B31/02; F16B37/04; (IPC1-7): F16B37/04; E04B1/24; F16B31/02
Domestic Patent References:
| JP8302813A | ||||
| JP8144369A | ||||
| JP9256461A | ||||
| JP10002314A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation