VIBRATION ABSORPTION BOLT

Japanese Patent JP2017096490

A

PROBLEM TO BE SOLVED: To provide a structure of a bolt for absorbing entire vibration applied from an upper side, a lower side, a right side and a left side of the bolt.SOLUTION: A first invention relates to a vibration absorption bolt that is a bolt having a multiple structure in its lengthwise direction in which its outer-most layer is a screw thread formed with screw thread, its intermediate layer is an elastic layer and its inner-most layer is a bolt body layer and an inserting extremity end side of the bolt body layer is provided with a bolt extremity end for fixing the extremity end side and the elastic body. A second invention is a vibration absorbing bolt that is a bolt having a multiple structure in its lengthwise direction in which its outer-most layer is a screw thread layer having a screw thread, its intermediate layer is an elastic layer, its inner-most layer is a bolt body layer, an elastic layer also covers both upper and lower ends of the screw thread, the inserting extremity end side of the bolt body layer is provided with a bolt extremity end part for fixing the extremity end side to the elastic body. Insertion of the elastic body into the bolt causes entire vibration from right side and left side as well as upper,or lower, rightward or leftward side to be absorbed.SELECTED DRAWING: Figure 1

WO/1981/002045

REPLACEABLE FASTENER FOR COVER PLATES AND THE LIKE

HAYASHI SHINICHIRO
HAYASHI WASHIO
HAYASHI KOZABURO
HAYASHI KANAKO

JP2016171331A

June 01, 2017

September 01, 2016

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HAYASHI BUSSAN CO LTD

F16B35/00; F16B39/38; F16B41/00; F16F15/08

JP2007225026A	2007-09-06
JP3141567U	2008-05-08
JPS5822508U	1983-02-12
JP2010101430A	2010-05-06
JP2001330067A	2001-11-30
JPS6081508A	1985-05-09

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