【発明の名称】ライニング材及びそのライニング材を用いた超音波駆動モ-タ

Title:

【発明の名称】ライニング材及びそのライニング材を用いた超音波駆動モ-タ

Document Type and Number:

Japanese Patent JP2568564

Kind Code:

B2

Abstract:

A lining material superior in abrasion-proof, considerably reducing the sliding sounds to be caused at high speeds, and an ultrasonic wave driven motor using the lining material (9) for the inverted face of a rotor (2). The lining material is composed of total aromatic polyamide pulp granule of a meta type and/or total aromatic polyamide fiber of a meta type as main comonents, being 3 through 40% in the percentage of voids. As the lining material (9) is used as the inverted face of the rotor portion (2) which comes into contact against the vibration amplifying portion (5) of the stator portion (1), so that the noises during the driving operation may be reduced, and also, the service life of the inverted face may be extended.

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Inventors:

Seiji Kurosumi
Uda Shigenori
Masahiro Hirai
Murano Katsuhiro
Kimura Goo
Nobuyuki Yamamoto

Application Number:

JP18154287A

Publication Date:

January 08, 1997

Filing Date:

July 21, 1987

Export Citation:

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Assignee:

Matsushita Electric Industrial Co., Ltd
Teijin Limited

International Classes:

H01L41/09; H02N2/16; H02N2/00; (IPC1-7): H02N2/00

Domestic Patent References:

JP62114480A

Attorney, Agent or Firm:

Tomoyuki Takimoto

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