ROTARY JOINT - BL AUTOTEC LTD

Title:

ROTARY JOINT

Document Type and Number:

WIPO Patent Application WO/2002/060655

Kind Code:

A1

Abstract:

A rotary joint (A), comprising a power slip ring (21) and an electric signal slip ring (31) for exchanging electricity between a fixed body (1) and a rotating body (6), wherein a plurality of circumferentially extending annular passages (30), (30), etc. are formed between the fixed body (1) and the rotating body (6) parallel with each other in axial direction, and the annular passages (30, 30) excluding the annular passage (30) near the power slip ring (21) and the electric signal slip ring (31) from among the annular passages (30), (30), etc. are formed as water channels (12, 13), whereby water droplets are prevented from invading into the areas around the slip rings (21) and (31) so as to prevent a leakage accident.

Inventors:

TSUTSUMI MIKIO (JP)
MOMOTA HITOSHI (JP)
NAKAMURA YOSHITAKA (JP)

Application Number:

PCT/JP2002/000674

Publication Date:

August 08, 2002

Filing Date:

January 29, 2002

Export Citation:

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Assignee:

BL AUTOTEC LTD (JP)
TSUTSUMI MIKIO (JP)
MOMOTA HITOSHI (JP)
NAKAMURA YOSHITAKA (JP)

International Classes:

B25J17/00; B25J19/00; H01R39/28; H01R39/64; (IPC1-7): B25J19/00; B25J17/00

Foreign References:

US5296671A	1994-03-22
JPH05138580A	1993-06-01
JP2000074224A	2000-03-14
JPH06155367A	1994-06-03
JPH03126583U	1991-12-19
JPH0796490A	1995-04-11
JPH10223346A	1998-08-21

Other References: