COUPLING STRUCTURE

WIPO Patent Application WO/2017/111162

A1

Provided is a coupling structure that makes it possible for a first member and a second member to be connected so as to be capable of rotating and oscillating, and for the rotating and oscillating condition to be preserved. In the coupling structure, the end of the first member (12) forms a spherical segment in which the outer surface describes the shape of a convex spherical surface and the inner surface describes the shape of a concave spherical surface. The second member (14) has a first attachment member (16) protruding to the exterior in a position set apart from the end. A sliding member (18) is disposed between the inner surface of the spherical segment of the first member and the end of the second member. A second attachment member (20) having an opening is provided on the periphery of the outer surface of the spherical segment of the first member so that the opening is kept in direct contact, in a slidable manner, with the outer surface of the spherical segment in a portion set apart from the second member beyond the position where the outer diameter of the spherical segment is at a maximum. Clearance is provided between the end of the spherical segment of the first member and the surface of the first attachment member facing the first member, and the first attachment member and second attachment member are pressed in the direction in which the gap therebetween decreases.

SHIONOYA SHINICHI (JP)
MIYASHITA OSAMU (JP)

PCT/JP2016/088722

June 29, 2017

December 26, 2016

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OILES INDUSTRY CO LTD (JP)

F16L27/06; F01N13/08; F16L27/053

JPH11336968A	1999-12-07
FR991025A	1951-09-28
EP1132588A1	2001-09-12
US5393108A	1995-02-28
JPS5252120U	1977-04-14
JPS59127812U	1984-08-28
JPH0165482U	1989-04-26

SATO & ASSOCIATES (JP)

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