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Patent Searching and Data


Title:
工具係合部を有するねじ要素
Document Type and Number:
Japanese Patent JP6422497
Kind Code:
B2
Abstract:
Screw elements are provided which include a shank having a thread and a head connected to the shank, the head having a tool engagement portion which comprises six corner domes arranged evenly distributed in the peripheral direction of the head and comprising respective flanks, by which the head can be brought into positive cooperation with a hexagon socket of a tool for tightening of the screw element, wherein respective recesses are arranged peripherally between the corner domes, and wherein the flanks of the corner domes are respectively provided at least partially with a radius.

Inventors:
Buzero Bradick Zoran
Cattaneo Sergio
Fisher Sven
Kirchhair Frank
Redaelli Paolo
Application Number:
JP2016538607A
Publication Date:
November 14, 2018
Filing Date:
October 14, 2014
Export Citation:
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Assignee:
Fontana Fasteners D.S.R.L.
International Classes:
F16B23/00
Domestic Patent References:
JP2008542044A
JP51067966U
JP61117669U
JP60025661A
JP2002364619A
Foreign References:
US20100143073
US5324149
US20110070051
Attorney, Agent or Firm:
Hayashi Ichiyoshi
Tetsuo Shiba
Takuya Saito
Iwaike Mitsuru
Kazuhiro Kosuga
Hiroshi Hayashi