Title:
係合斜面を有する螺旋形の駆動固定部材
Document Type and Number:
Japanese Patent JP4956435
Kind Code:
B2
Abstract:
The fastener of this application is designed to facilitate the insertion of rotating power driven tools into the fastener recess. The recess of this fastener generally uses spirally configured driving surfaces and is formed in a counterbore in the upper surface of the fastener. The driving lobes have upper surfaces that are depressed a distance into the counterbore. A ramp surface is formed on each of the upper surfaces that causes a spinning bit to fall into the recess in an engaged manner. The ramp surfaces are constructed with both removal and installation ramp portions.
Inventors:
Dilling Gary
Application Number:
JP2007535730A
Publication Date:
June 20, 2012
Filing Date:
October 04, 2005
Export Citation:
Assignee:
Philips Screw Company
International Classes:
F16B23/00; B21J13/02; B21K25/00
Domestic Patent References:
| JP2002525500A | ||||
| JP6063916U | ||||
| JP11051022A |
Attorney, Agent or Firm:
Motohiko Fujimura