Self-adjusting preload for memory alloy wire
US-2018346207-A1 · Dec 6, 2018 · US
Self-adjusting preload for memory alloy wire
US8974641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8974641-B2 |
| Application number | US-201113012742-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2011 |
| Priority date | Jan 24, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A preload mechanism for a memory alloy wire actuator is disclosed that includes a rotating element configured to rotate about a pivot. The rotating element has a first contact point that is configured to couple to the memory alloy wire actuator such that contraction of the memory alloy wire actuator displaces the first contact point such that the rotating element rotates from a first position to a second position. The preload mechanism also includes a bias element with a first end that is coupled to a second contact point of the rotating element and a second end configured to be pinned relative to the pivot. The bias element has a line of action extending from the second end through the first end. The line of action has an offset distance that is the minimum distance between the line of action and the pivot. The offset distance has a first value when the rotating element is in the first position and a second value when the rotating element is the second position, the second value being smaller than the first value.
First claim
Opening claim text (preview).
What is claimed is: 1. An actuator assembly comprising: a memory alloy wire actuator comprising: a memory alloy wire having first and second ends; and at least one terminal coupled to one end of the memory alloy wire; a rotating element having a first contact point, a second contact point, and a pivot, the rotating element configured to rotate about the pivot and the first and second contact points disposed radially from the pivot, wherein the first contact point is configu…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- B65D43/164Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8974641B2 cover?
- A preload mechanism for a memory alloy wire actuator is disclosed that includes a rotating element configured to rotate about a pivot. The rotating element has a first contact point that is configured to couple to the memory alloy wire actuator such that contraction of the memory alloy wire actuator displaces the first contact point such that the rotating element rotates from a first position t…
- Who is the assignee on this patent?
- Weber Frank Dean, Potakowskyj Christoph, Bayer Ernst, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B65D43/164. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 10 2015 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).