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US 12,245,688 B2Granted
Arm rest apparatus
AssigneesROEN Surgical, Inc., Korea Advanced Institute of Science and Technology
InventorsDong Soo Kwon, Duk Sang Kim, Byung Sik Cheon, Un Je Yang
Life of this patent
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Abstract
An arm rest apparatus, according to one embodiment, may comprise: a fixed part fixed to an external object; a horizontal movement module having one end rotatably connected to the fixed part and the other end having two-translational-degree-of-freedom movement with respect to the fixed part; and an arm support module installed to have two rotational degrees of freedom with respect to the other end of the horizontal movement module.
Claims8
An arm rest apparatus comprising:
- a fixed part fixed to an external object;
- a horizontal movement module having one end rotatably connected to the fixed part and another end having two-translational-degree-of-freedom movement with respect to the fixed part, wherein the horizontal movement module further comprises:
- a first driving frame which has a first link rotatably connected to a first rotary shaft and rotatably connected to a second rotary shaft parallel with the first rotary shaft, wherein the first driving frame further comprises a first protrusion member which is fixed to the first link to rotate around the first rotary shaft and has an edge radially protruding around the first rotary shaft;
- a second driving frame which has a driving link rotatably connected to the first rotary shaft, a second link rotatably connected to a third rotary shaft parallel with the first rotary shaft, and a third link rotatably connected to a fourth rotary shaft spaced apart from the third rotary shaft in parallel with the third rotary shaft and rotatably connected to the second rotary shaft, wherein at least a portion of the driving link has an edge radially protruding around the first rotary shaft;
- a central connection part which is rotatably connected to the fixed part through a plurality of links;
- and
- a rotational end part which is rotatably connected to the central connection part through a plurality of links;
- and
- an arm support module movably supported by the horizontal movement module.
6 more elements
An arm rest apparatus comprising:
- a fixed part fixed to an external object;
- a horizontal movement module having two-degree-of-freedom movement with respect to the fixed part, wherein the horizontal movement module further comprises:
- a first driving frame which has a first link rotatably connected to a first rotary shaft and rotatably connected to a second rotary shaft parallel with the first rotary shaft;
- a second driving frame which has a driving link rotatably connected to the first rotary shaft, a second link rotatably connected to a third rotary shaft parallel with the first rotary shaft, and a third link rotatably connected to a fourth rotary shaft spaced apart from the third rotary shaft in parallel with the third rotary shaft and rotatably connected to the second rotary shaft;
- a central connection part which is rotatably connected to the fixed part through a plurality of links;
- and
- a rotational end part which is rotatably connected to the central connection part through a plurality of links;
- and
- a damping part which provides a resistance according to the two-degree-of-freedom movement of the horizontal movement module so as to control damping according to a horizontal movement of an arm, wherein the damping part comprises:
- a first damping part, a second damping part, and a third damping part which respectively adjust angular speeds of first and second rotary shafts and an arm rotary shaft equally so as to control damping according to the horizontal movement.
7 more elements
An arm rest apparatus comprising:
- a fixed part fixed to an external object;
- a horizontal movement module having two-translational-degree-of-freedom movement with respect to the fixed part;
- and
- an arm support module which is supported by the horizontal movement module to be movable and compensates weight of a user's arm, wherein the arm support module comprises:
- a first arm supporter and a second arm supporter;
- a first support part rotatably connected to an arm rotary shaft formed at a rotational end part;
- a rotary link rotatably mounted to an inclination adjustment shaft formed at the first support part;
- and
- a gravity compensation part for providing elastic restoring force which increases as the rotary link gets further from a ground wherein the gravity compensation part comprises:
- an elastic body of which the length is changed according to a change in angle of the rotary link and which is arranged in parallel with the longitudinal direction of the rotary link;
- and a wire of which one end is fixed to an end of the elastic body and an other end of the wire is connected to the first support part above the inclination adjustment shaft.
8 more elements
Dependencies are inferred from the claim text.