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Vibration-type actuator, pan head, and electronic apparatus
US11515811B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11515811-B2 |
| Application number | US-202117162711-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2021 |
| Priority date | Feb 3, 2020 |
| Publication date | Nov 29, 2022 |
| Grant date | Nov 29, 2022 |
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- Title
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Abstract
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A vibration-type actuator includes a vibrating body including an annular elastic member and an electric-mechanical energy conversion element, and an annular contact body configured to move relative to the vibrating body. The contact body includes a base portion, a support portion annularly extending from the base portion in a radial direction of the contact body, and a friction member provided at the support portion, formed separately from the support portion, and being in contact with the vibrating body. The friction member includes a first part extending in a direction along a central axis of the annular contact body, and a second part extending in the radial direction, the first part and the second part being connected to the support portion. The first part includes a portion that is connected by being either internally or externally fitted to the support portion in the radial direction.
First claim
Opening claim text (preview).
What is claimed is: 1. A vibration-type actuator comprising: a vibrating body including an annular elastic member and an electric-mechanical energy conversion element; and an annular contact body configured to move relative to the vibrating body, wherein the contact body includes: a base portion, a support portion annularly extending from the base portion in a radial direction of the contact body, and a friction member provided at the support portion, formed separately from the support portion, and being in contact with the vibrating body, wherein the friction member includes a first part extending in a direction along a central axis of the annular contact body, and a second part extending in the radial direction, the first part and the second part being connected to the support portion, and wherein the first part includes a portion that is connected by being either internally or externally fitted to the support portion in the radial direction. 2. The vibration-type actuator according to claim 1 , wherein the friction member includes the first part having a plurality of parts. 3. The vibration-type actuator according to claim 2 , wherein the plurality of parts in the first part includes a part that is internally fitted to the support portion, and a part that is externally fitted to the support portion. 4. The vibration-type actuator according to claim 1 , wherein a material of the support portion has a Young's modulus lower than a Young's modulus of a material of the friction member. 5. The vibration-type actuator according to claim 1 , wherein rigidity of a material of the support portion is lower than rigidity of a material of the friction member. 6. The vibration-type actuator according to claim 1 , wherein a material of the friction member is steel, and a material of the support portion is an aluminum alloy or brass. 7. A pan head comprising: a turntable; and the vibration-type actuator according to claim 1 , the vibration-type actuator being provided on the turntable. 8. An electronic apparatus comprising: a member; and the vibration-type actuator according to claim 1 , the vibration-type actuator being provided on the member.
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- What does patent US11515811B2 cover?
- A vibration-type actuator includes a vibrating body including an annular elastic member and an electric-mechanical energy conversion element, and an annular contact body configured to move relative to the vibrating body. The contact body includes a base portion, a support portion annularly extending from the base portion in a radial direction of the contact body, and a friction member provided …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H02N2/103. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 29 2022 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).