Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1998-02-09
2000-09-05
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
31032317, H02N 200
Patent
active
061147990
ABSTRACT:
A driving device with a long stroke and high speed driving ability. The device includes a base with a pair of parallel guides which are elastically installed thereon, and includes a drive unit in which there are arranged in series a driving member frictionally engaging the guides, a piezoelectric element for actuating the driving member in a direction in which the piezoelectric element expands and contracts, and a movable member, with a mass larger than the driving member, on which the driving member and the piezoelectric element are installed movably in the direction. When the piezoelectric element expands slowly with a pulse voltage applied thereto, the movable member moves with the driving member remaining stationary, relative to the guide. When the piezoelectric element contracts rapidly, the driving member slides relative to the guide with the movable member remaining stationary relative thereto. Thus, the drive unit is driven and moved along the guide.
REFERENCES:
patent: 4195243 (1980-03-01), Thaxter
patent: 4672256 (1987-06-01), Okuno et al.
patent: 4947077 (1990-08-01), Murata
patent: 4968914 (1990-11-01), West et al.
patent: 5013958 (1991-05-01), Ohnishi et al.
patent: 5087851 (1992-02-01), Nakazawa et al.
patent: 5134334 (1992-07-01), Onishi et al.
patent: 5225941 (1993-07-01), Saito et al.
patent: 5260622 (1993-11-01), West
patent: 5453653 (1995-09-01), Zumeris
patent: 5818147 (1998-10-01), Kobayashi et al.
Okamoto Yasuhiro
Yoshida Ryuichi
Dougherty Thomas M.
Minolta Co. , Ltd.
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