Title:
ねじ及びねじを回して脱着するためのねじ回し
Document Type and Number:
Japanese Patent JP2011521188
Kind Code:
A
Abstract:
The invention relates to hand tools and to threaded fasteners, and comprises a screw and corresponding screwdriver. The screw comprises a head and a threaded working end. The head slot for inserting the screwdriver is made in the form of a “dove tail.” The working section of the screwdriver for screwing and unscrewing the screw is made as a mirror image of the screw head slot, with the same angle of slope. The invention lengthens the life of screwdrivers and screws and their serviceability.
Inventors:
Nurlan Dauletbayev
Application Number:
JP2011510439A
Publication Date:
July 21, 2011
Filing Date:
March 04, 2009
Export Citation:
Assignee:
Nurlan Dauletbayev
International Classes:
F16B23/00; B25B15/00
Attorney, Agent or Firm:
Takuya Kuno
Toshio Yano
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard
Toshio Yano
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard