CONTACT BODY EASY TO VERIFY RESIN IMPREGNATION, MANUFACTURING METHOD THEREOF, AND VIBRATION ACTUATOR INCLUDING CONTACT BODY
First Claim
1. A contact body that has a metallic sintered body having a plurality of pores, as a main body, and is brought into contact with a vibration element in a vibration actuator, comprising:
- a sliding portion that has a sliding surface in contact with the vibration element; and
a non-sliding portion that is adjacent to the sliding portion and is not in contact with the vibration element,wherein the non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed such that the resin lump is lower in height in a vertical direction than the sliding surface, andwherein in the sliding portion, part of hard particles and resin is exposed on the sliding surface.
1 Assignment
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Accused Products
Abstract
A contact body that makes it possible to easily verify whether or not the resin has been properly impregnated in the pores. A metallic sintered body having a plurality of pores, as a main body, is in contact with a vibration element in a vibration actuator. The contact body includes a sliding portion that has a sliding surface in contact with the vibration element, and a non-sliding portion adjacent to the sliding portion and not in contact with the vibration element. The non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed to be lower in height in a vertical direction than the sliding surface. In the sliding portion, part of hard particles and resin is exposed on the sliding surface.
0 Citations
11 Claims
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1. A contact body that has a metallic sintered body having a plurality of pores, as a main body, and is brought into contact with a vibration element in a vibration actuator, comprising:
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a sliding portion that has a sliding surface in contact with the vibration element; and a non-sliding portion that is adjacent to the sliding portion and is not in contact with the vibration element, wherein the non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed such that the resin lump is lower in height in a vertical direction than the sliding surface, and wherein in the sliding portion, part of hard particles and resin is exposed on the sliding surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vibration actuator including a vibration element, and a contact body that has a metallic sintered body having a plurality of pores, as a main body,
wherein the contact body comprises: -
a sliding portion that has a sliding surface in contact with the vibration element; and a non-sliding portion that is adjacent to the sliding portion and is not in contact with the vibration element, wherein the non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed such that the resin lump is lower in height in a vertical direction than the sliding surface, and wherein in the sliding portion, part of hard particles and resin is exposed on the sliding surface.
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11. A method of manufacturing a contact body that has a metallic sintered body having a plurality of pores, as a main body, and is brought into contact with a vibration element in a vibration actuator, comprising:
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applying mixed resin formed by mixing hard particles and resin to a first surface of the metallic sintered body and a second surface of the metallic sintered body, which is provided at a height lower than the first surface such that the second surface is adjacent to the first surface; performing heat treatment for impregnating the mixed resin applied to the metallic sintered body in the pores of the metallic sintered body and curing the mixed resin; and removing remaining mixed resin on the first surface, which has been cured, by grinding, and adjusting flatness of the first surface, wherein a resin lump formed on the second surface by the mixed resin which is cured by the heat treatment is not ground by said grinding.
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Specification