Title:
締結工具
Document Type and Number:
Japanese Patent JP5002676
Kind Code:
B2
Abstract:
This fastening tool supports a key wrench such that it cannot rotate at a location where a hexagonal hole on the tip end part comes in contact with a nut 60, so that even though the key wrench is pressed backward as a pin 50 is screwed into the nut, a key wrench holder 31 remains in contact with the nut. After the pin has been screwed into the nut, the nut is twisted off at a weak section 62. The further the pin is screwed into the nut, the key wrench holder supports the key wrench at a location closer to the pin, which keeps the torsional deformation amount of the tip end part of the wrench small, and thus allows to securely engage with the pin, and in the final state of the fastening work, the twist-off type nut, which requires a large torque, is completely twisted off.
Inventors:
Manabu Saito
Tatsuo Nakahata
Hideharu Takahashi
Tatsuo Nakahata
Hideharu Takahashi
Application Number:
JP2010103445A
Publication Date:
August 15, 2012
Filing Date:
April 28, 2010
Export Citation:
Assignee:
Fuji Heavy Industries Ltd.
International Classes:
B25B13/06; B25B13/54; B25B21/00; F16B31/02; F16B37/00
Domestic Patent References:
| JP2007504012A | ||||
| JP6155319A | ||||
| JP53029269Y1 | ||||
| JP2003191173A | ||||
| JP6374278U |
Foreign References:
| US20040177724 | ||||
| US20070107557 |
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune