Title:
ねじ回し工具および対応するねじ
Document Type and Number:
Japanese Patent JP6911023
Kind Code:
B2
Abstract:
The invention relates to a screwing tool with a longitudinal axis X comprising a first, drive part, which can receive torque, and a second, transmission part, which is designed to cooperate with a screw, in order to re-transmit to it the torque received, the second part having a conical peripheral envelope with three longitudinal concavities with conical generatrices, defining three identical radial transmission lobes, each of which has, in a cross-section perpendicular to the longitudinal direction, a distal tangential portion which extends according to an arc of a circle, and is extended on both sides by two connection portions, each of which is defined by a curve comprising a substantially radial main part, and having a point of inflection before re-joining a proximal joining region which ensures the joining with an adjacent connection portion. The joining regions have a cone angle which is smaller than the cone angle of the tangential portions, and is substantially less than 5°, preferably less than 3°.
Inventors:
Christian Tissier
Application Number:
JP2018520645A
Publication Date:
July 28, 2021
Filing Date:
July 06, 2016
Export Citation:
Assignee:
IPP INDUSTRIES SARL
International Classes:
B25B15/00; F16B23/00
Domestic Patent References:
| JP2013521450A | ||||
| JP2001527630A |
Foreign References:
| WO2008032137A1 | ||||
| US2445525 | ||||
| WO2014195410A1 | ||||
| WO2005047716A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Tatsuya Tanaka
Mitsutsugu Sugimura
Tatsuya Tanaka