POWER TRANSMISSION DEVICE - TOSHIBA MITSUBISHI ELEC INC

Title:

POWER TRANSMISSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2010/055578

Kind Code:

A1

Abstract:

A power transmission device capable of suppressing leakage of an electromagnetic wave between a space (1) and a space (2). The power transmission device has an electromagnetic wave shielding wall (10) for partitioning between the spaces (1, 2), a rotating shaft (20) penetrating the electromagnetic wave shielding wall (10) and transmitting rotational drive force, and a bearing (80) for supporting the rotating shaft (20). The rotating shaft (20) has a first shaft member (30) supported by the bearing (80), a shaft coupling section (50) provided at an en end section (31) of the first shaft member (30), and a second shaft member (40) rotating together with the first shaft member (30). The first and second shaft members (30, 40) are made from an electrically conductive material. The shaft coupling section (50) has an insulation section (51) made from an insulative material. An outer ring forming section (16) of the bearing (80) has an annular intimate contact surface (18) made from an electrically conductive material.

Inventors:

OHTSUKA JUNJI (JP)
NISHIMIYA KAZUHIKO (JP)
MIURA HIDEKI (JP)
KOYAMA YASUSHI (JP)

Application Number:

PCT/JP2008/070794

Publication Date:

May 20, 2010

Filing Date:

November 14, 2008

Export Citation:

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Assignee:

TOSHIBA MITSUBISHI ELEC INC (JP)
OHTSUKA JUNJI (JP)
NISHIMIYA KAZUHIKO (JP)
MIURA HIDEKI (JP)
KOYAMA YASUSHI (JP)

International Classes:

F16D1/02; E04H5/02; H05K9/00

Foreign References:

JPH08326340A	1996-12-10
JPH0735572A	1995-02-07
JPS62109494U	1987-07-13
JP2006044479A	2006-02-16
JPH08326340A	1996-12-10

Other References: