WATERPROOF STRUCTURE FOR PORTION WHERE MEMBERS ARE TIGHTENED WITH SCREW

Title:

WATERPROOF STRUCTURE FOR PORTION WHERE MEMBERS ARE TIGHTENED WITH SCREW

Document Type and Number:

WIPO Patent Application WO/2006/123809

Kind Code:

A1

Abstract:

A waterproof structure for a tightening section where a first member (1) having a screw hole (1a) with a bottom and a second member (2) having a screw insertion hole (2a) are fastened with a screw (4) that is inserted into the screw insertion hole (2a) and screwed to the screw hole (1a). The screw (4) is a flat head screw, and an annular groove (3b) is formed in the outer surface of a spacer (3) having an insertion hole where recessed circular conical surface (3a) is formed. The recessed circular conical surface (3a) is fitted in the screw insertion hole (2a) to be in surface contact with a circular conical surface of a head of the flat head screw. The annular groove (3b) is coaxial with the recessed circular conical surface (3a). An O-ring (5) is installed in the annular groove (3b), and the flat head screw (4) is tightened with the spacer (3) placed between first member and the second member, causing the O-ring (5) to be pressed between an inner surface of the annular groove (3b) and a surface of the screw insertion hole of the second member (2). The waterproof structure can be repeatedly used without damaging the members and does not require a large space.

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Inventors:

MIYOSHI SACHIYO (JP)
NAITO KIYOSHI (JP)

Application Number:

PCT/JP2006/310092

Publication Date:

November 23, 2006

Filing Date:

May 16, 2006

Export Citation:

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Assignee:

KENWOOD CORP (JP)
MIYOSHI SACHIYO (JP)
NAITO KIYOSHI (JP)

International Classes:

F16J15/06; F16B5/02; F16B43/00

Foreign References:

JP2005036962A	2005-02-10
JPH1137132A	1999-02-09
JPH02101120U	1990-08-13
JPH03204407A	1991-09-06
JP2005048836A	2005-02-24
JPH1137133A	1999-02-09
JPS58191414U	1983-12-20
JPS6184796U	1986-06-04
JPH11229790A	1999-08-24

Other References: