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US 5,352,950 AGranted
Vibration wave driven motor
AssigneeCanon Kabushiki Kaisha
InventorTakayuki Shirasaki
Life of this patent
Estimating the term…
Abstract
A vibration wave motor, in which the slidable member, constituting the rotor either solely or in combination with a support member, is formed by injection molding of a composite resin, composed of a thermoplastic resin with the glass transition point at least equal to 100.degree. C., preferably at least equal to 140.degree. C., as the matrix resin and a fibrous reinforcing material.
Claims7
A vibration wave motor comprising:
- a vibration member for generating a vibration wave by an applied electric signal;
- and
- a contacting member having a sliding portion which contacts said vibration member and is adapted to receive the vibration wave generated in said vibration member;
- wherein said sliding portion is composed of a thermoplastic resin with a glass transition point at least equal to 100.degree. C., containing non-fibrous reinforcing material and formed by injection molding, and wherein said non-fibrous reinforcing material is composed of glass-like carbon beads.
1 more element
A vibration wave motor comprising:
- a vibration member for generating a vibration wave by an applied electrical signal;
- and
- a contacting member having a sliding portion which contacts said vibration member and is adapted to receive the vibration wave generated in said vibration member;
- wherein said sliding portion is composed of a thermoplastic resin with a glass transition point greater than or equal to 100.degree. C., containing non-fibrous reinforcing material and formed by injection molding, and wherein said non-fibrous reinforcing material is composed of glass-like carbon beads.
1 more element
Dependencies are inferred from the claim text.