Actuator with contracting member
An actuator can include an outer body. At least a portion of the outer body can be configured to pivot. The actuator can include a contracting member, such as a shape memory material member. When an activation input is provided to the contracting member, the contracting member can contract. As a result, the actuator can be caused to morph into an activated configuration in which a dimension, such as the height, of the actuator increases.
1 . An actuator, comprising:
an outer body including a first outer body member and a second outer body member, the second outer body member including a first portion and a second portion pivotably connected to a base structure located therebetween;
a contracting member operatively connected to opposing end portions of the actuator; and
when an activation input is provided to the contracting member, the contracting member contracts such that the opposing end portions of the actuator move toward each other, thereby causing the actuator to morph into an activated configuration in which a dimension of the actuator increases.
2 . The actuator of claim 1 , wherein the contracting member is a shape memory material member.
3 . The actuator of claim 2 , wherein the shape memory material member is a shape memory alloy.
4 . The actuator of claim 1 , wherein the contracting member is a wire.
5 . The actuator of claim 1 , wherein the dimension corresponds to a height of the actuator.
6 . The actuator of claim 1 , further including one or more locking elements configured to maintain the actuator in the activated configuration without an activation input being provided to the contracting member.
7 . The actuator of claim 1 , wherein the first outer body member includes a first portion and a second portion pivotably connected to each other.
8 . The actuator of claim 7 , wherein the first portion and the second portion are pivotably connected to each other by a hinge.
9 . The actuator of claim 7 , further including one or more biasing members operatively positioned to bias the first portion and the second portion into a non-activated configuration of the actuator.
10 . The actuator of claim 1 , further including one or more biasing members operatively positioned to bias the first portion and the second portion of the second outer body member into a non-activated configuration.
11 . The actuator of claim 1 , wherein the first outer body member and the second outer body member are arranged in a scissored configuration.
12 . The actuator of claim 11 , wherein, in the scissored configuration, a portion of the first outer body member crosses a portion of the second outer body member.
13 . The actuator of claim 1 , wherein a first end of the first outer body member and a first end of the second outer body member are separated by an endcap.
14 . The actuator of claim 1 , wherein the opposing end portions are defined by a first endcap and a second endcap, wherein the contracting member is operatively connected to the first endcap and the second endcap, and wherein, when an activation input is provided to the contracting member, the contracting member contracts and pulls the first endcap and the second endcap toward each other.
15 . The actuator of claim 14 , wherein the contracting member is routed outboard of the first endcap and the second endcap.
16 . The actuator of claim 14 , wherein the contracting member is routed inboard of the first endcap and the second endcap.
17 . The actuator of claim 14 , wherein the contracting member extends in a non- linear or serpentine manner between the first endcap and the second endcap.
18 . The actuator of claim 14 , wherein the first endcap includes a groove for receiving the contracting member, wherein the contracting member extends along the groove and turns around to extend toward the second endcap.
19 . The actuator of claim 18 , wherein the groove is substantially U-shaped.
20 . The actuator of claim 14 , wherein the first endcap includes a post that allows the contracting member to turn around and extend toward the second endcap, whereby the contracting member wraps around the post.
21 . The actuator of claim 1 , further including a push structure operatively connected to the outer body, and wherein, when the actuator morphs into the activated configuration, a position of the push structure changes.
22 . An actuator having an actuation side, comprising:
an outer body including a first outer body member and a second outer body member arranged in a scissored configuration in which a first interfacing end of the first outer body member is located closer to the actuation side than a first interfacing end of the second outer body member, and such that a second interfacing end of the first outer body member is located farther from the actuation side than a second interfacing end of the second outer body member;
a contracting member; and
when an activation input is provided to the contracting member, the contracting member contracts, thereby causing the actuator to morph into an activated configuration in which a height of the actuator increases.
23 . The actuator of claim 22 , wherein the contracting member is a shape memory material member.
24 . The actuator of claim 23 , wherein the shape memory material member is a shape memory alloy.
25 . The actuator of claim 22 , wherein the first outer body member is configured to be pivotable, and wherein the second outer body member is configured to be pivotable.
26 . The actuator of claim 25 , wherein the first outer body member includes a first portion and a second portion pivotably connected to each other.
27 . The actuator of claim 26 , further including one or more biasing members operatively positioned to bias the first portion and the second portion into a non-activated configuration of the actuator.
28 . The actuator of claim 22 , wherein the second outer body member includes a first portion and a second portion, and wherein each of the first portion and the second portion of the second outer body member is pivotably connected to a base structure located between the first portion and the second portion of the second outer body member.
29 . The actuator of claim 22 , further including a first endcap and a second endcap, wherein the contracting member is operatively connected to the first endcap and the second endcap, and wherein, when an activation input is provided to the contracting member, the contracting member contracts and pulls the first endcap and the second endcap toward each other.
30 . The actuator of claim 29 , wherein the first endcap includes a post that allows the contracting member to turn around and extend toward the second endcap, whereby the contracting member wraps around the post.
31 . The actuator of claim 29 , wherein the first endcap includes one or more guides, and wherein the contracting member is routed in part by the one or more guides.
32 . The actuator of claim 29 , wherein the contracting member is routed outboard of the first endcap and the second endcap.
33 . The actuator of claim 32 , wherein the contracting member is routed outboard on opposite sides of the first endcap and the second endcap.
34 . The actuator of claim 33 , wherein the contracting member extends around a back side of the first endcap or the second endcap.
35 . The actuator of claim 29 , wherein the contracting member extends in a non-linear or serpentine manner between the first endcap and the second endcap.
36 . The actuator of claim 29 , wherein at least one of the first endcap and the second endcap includes one or more posts or one or more guide structures, whereby the contracting member is routed by the one or more posts or the one or more guide structures.
37 . The actuator of claim 22 , wherein the first outer body member passes through the second outer body member.
38 . The actuator of claim 22 , wherein a portion of the first outer body member crosses a portion of the second outer body member.
39 . The actuator of claim 22 , further including a biasing member operatively positioned between the first outer body member and the second outer body member.
40 . The actuator of claim 39 , wherein the biasing member is a compression spring.
41 . A system comprising:
an actuator including:
an outer body including a first outer body member and a second outer body member, the second outer body member including a first portion and a second portion pivotably connected to a base structure located therebetween; and
a contracting member; and
one or more processors operatively connected to selectively activate the contracting member,
when an activation input is provided to the contracting member, the contracting member contracts, thereby causing the actuator to morph into an activated configuration in which a dimension of the actuator increases.
42 . The system of claim 41 , further including:
an energy source operatively connected to supply energy to the contracting member, wherein the one or more processors are operatively connected to the energy source, wherein the one or more processors are configured to selectively control a supply of energy to the contracting member.
43 . The system of claim 41 , wherein the one or more processors are configured to:
activate the contracting member to cause the contracting member to contract, thereby causing the actuator to morph into the activated configuration.
44 . A system comprising:
an actuator having an actuation side and including:
an outer body including a first outer body member and a second outer body member arranged in a scissored configuration in which a first interfacing end of the first outer body member is located closer to the actuation side than a first interfacing end of the second outer body member, and such that a second interfacing end of the first outer body member is located farther from the actuation side than a second interfacing end of the second outer body member, at least a portion of the outer body being configured to pivot; and
a contracting member; and
one or more processors operatively connected to selectively activate the contracting member,
when an activation input is provided to the contracting member, the contracting member contracts, thereby causing the actuator to morph into an activated configuration in which a dimension of the actuator increases.
45 . The system of claim 41 , further including a push structure operatively connected to the outer body, and wherein, when the actuator morphs into the activated configuration, a position of the push structure changes.
46 . The system of claim 41 , wherein the contracting member is a shape memory material member.
47 . An actuator, comprising:
an outer body including a first outer body member and a second outer body member, at least a portion of the outer body being configured to pivot; and
a contracting member operatively connected to opposing end portions of the actuator, the contracting member routed outside of the first outer body member and the second outer body member, whereby the contracting member does not extend in a space between the first outer body member and the second outer body member,
when an activation input is provided to the contracting member, the contracting member contracts such that the opposing end portions of the actuator move toward each other, thereby causing the actuator to morph into an activated configuration in which a dimension of the actuator increases.
48 . A system comprising:
an actuator including:
an outer body including a first outer body member and a second outer body member, at least a portion of the outer body being configured to pivot; and
a contracting member operatively connected to opposing end portions of the actuator, the contracting member routed outside of the first outer body member and the second outer body member, whereby the contracting member does not extend in a space between the first outer body member and the second outer body member; and
one or more processors operatively connected to selectively activate the contracting member,
when an activation input is provided to the contracting member, the contracting member contracts, thereby causing the actuator to morph into an activated configuration in which a dimension of the actuator increases.