Friction member to contact opposite member, method for manufacturing friction member, vibration-type actuator, and electronic device
US-10530277-B2 · Jan 7, 2020 · US
Friction member to contact opposite member, method for manufacturing friction member, vibration-type actuator, and electronic device
US11664746B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11664746-B2 |
| Application number | US-201916685369-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2019 |
| Priority date | Jun 10, 2016 |
| Publication date | May 30, 2023 |
| Grant date | May 30, 2023 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A vibration-type actuator capable of suppressing reduction in holding torque or holding force under influence of humidity. A vibration-type actuator 10 includes a vibrating body 2 and a driven body 1. The vibrating body 2 has a piezoelectric element 2c and an elastic body 2b. The driven body 1 is in contact with the vibrating body 2. The vibration-type actuator 10 moves the vibrating body 2 and the driven body 1 relatively to each other by vibration excited to the vibrating body 2. At least one of a first contact portion of the vibrating body 2 and a second contact portion of the driven body 1 includes a stainless-steel sintered body with pores and at least some of the pores are impregnated with a resin.
First claim
Opening claim text (preview).
What is claimed is: 1. A friction member comprising: a friction portion including a stainless-steel sintered body with pores, wherein at least some of the pores are impregnated with a resin, which contains ceramic powder. 2. The friction member according to claim 1 , wherein the resin is an epoxy resin or an acrylic resin. 3. The friction member according to claim 1 , wherein the friction portion is made from the stainless-steel sintered body. 4. The friction member according to claim 1 , further comprising a base member, wherein the stain-less steel sintered body of the friction portion is directly bonded to the base member. 5. The friction member according to claim 1 , wherein the resin is dispersed in patches in the stainless steel sintered body. 6. The friction member according to claim 1 , wherein ceramic particles are dispersed in the resin. 7. The friction member according to claim 1 , wherein the ceramic powder is green carborundum ceramic powder or white alundum ceramic powder.
Assignees
Inventors
Classifications
by pressing one or more vibrators against the driven body · CPC title
by pressing one or more vibrators against the rotor · CPC title
Methods relating to manufacturing, e.g. assembling, calibration · CPC title
in the direction of the axis of rotation {(F16F7/023 takes precedence)} · CPC title
Langevin motors · CPC title
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Frequently asked questions
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- What does patent US11664746B2 cover?
- A vibration-type actuator capable of suppressing reduction in holding torque or holding force under influence of humidity. A vibration-type actuator 10 includes a vibrating body 2 and a driven body 1. The vibrating body 2 has a piezoelectric element 2c and an elastic body 2b. The driven body 1 is in contact with the vibrating body 2. The vibration-type actuator 10 moves the vibrating body 2 and…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H02N2/007. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 30 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).