Document Type and Number:
Japanese Patent JPS6135772
Kind Code:
Y2
Abstract:
Disclosed is a device comprising a connecting bolt having a gripping profile near one end and a coupling element having a profile adapted to engage the profile of the connecting bolt. The profile of the connecting bolt is a plurality of projecting teeth separated by grooves where the spacing between at least some of the teeth and the depth of at least some of the grooves increases toward the end of the connecting bolt. The profile of the coupling element is a plurality of teeth separated by grooves which generally correspond to the profile of the teeth of the connecting bolt. However, the spacing between at least some of the grooves relative to the teeth on the connecting bolt is slightly greater and becomes increasingly greater from the groove adapted to engage the tooth of the connecting bolt nearest the end of the bolt to the groove adapted to engage the tooth of the connecting bolt furthest from the end of the bolt.
Application Number:
JP18726582U
Publication Date:
October 17, 1986
Filing Date:
December 13, 1982
Export Citation:
International Classes:
F16B21/00; B25B29/02; F16B21/04; F16B31/04; F16B35/06; G21D1/00; (IPC1-7): F16B21/00; G21D1/00