Raiser seat
First Claim
Patent Images
1. A raiser seat for assisting a person from a sitting to a standing position comprising:
- a seat frame;
a seat adapted for movement relative to the seat frame between a lowered position and a raised position; and
a movement mechanism for moving the seat between the lowered and the raised positions;
wherein the movement mechanism comprises at least one cam pivotally mounted with respect to the seat frame about an axis, the at least one cam is attached or integrated to a gear coaxial with the axis of the at least one cam, the gear being in meshed engagement with a toothed rack such that translation of the toothed rack results in rotation of the at least one cam, the at least one cam including a cam profile, the cam profile supporting and being movable with respect to the seat such that rotation of the at least one cam results in movement of the seat relative to the seat frame between the lowered position and the raised position.
1 Assignment
0 Petitions
Accused Products
Abstract
A raiser seat for assisting a person from a sitting to a standing position is described. The seat comprises: a seat frame (4); a seat (10) supported for movement relative to the seat frame between a lowered position and a raised position; and a movement mechanism for moving the seat between the lowered and the raised positions. The movement mechanism comprises at least one cam (104) and the seat rests on the at least one cam such that rotation of the at least one cam results in movement of the seat relative to the seat frame.
27 Citations
34 Claims
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1. A raiser seat for assisting a person from a sitting to a standing position comprising:
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a seat frame; a seat adapted for movement relative to the seat frame between a lowered position and a raised position; and a movement mechanism for moving the seat between the lowered and the raised positions; wherein the movement mechanism comprises at least one cam pivotally mounted with respect to the seat frame about an axis, the at least one cam is attached or integrated to a gear coaxial with the axis of the at least one cam, the gear being in meshed engagement with a toothed rack such that translation of the toothed rack results in rotation of the at least one cam, the at least one cam including a cam profile, the cam profile supporting and being movable with respect to the seat such that rotation of the at least one cam results in movement of the seat relative to the seat frame between the lowered position and the raised position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A raiser seat for assisting a person from a sitting to a standing position comprising:
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a seat frame; a seat adapted for movement relative to the seat frame between a lowered position and a raised position; and a movement mechanism for moving the seat between the lowered and the raised positions; wherein the movement mechanism comprises at least one cam pivotally mounted with respect to the seat frame about an axis, the at least one cam including a cam profile, the cam profile supporting and being movable with respect to the seat such that rotation of the at least one cam results in movement of the seat relative to the seat frame between the lowered position and the raised position, the seat being secured on the at least one cam by an interface between a connection member of the cam and at least one guide track formed on the seat, the at least one connection member interfacing with the at least one guide track, and the at least one connection member is of a variable length or variable position with respect to the cam to facilitate the removal of the connection member from the at least one guide track. - View Dependent Claims (33)
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34. A raiser seat for assisting a person from a sitting to a standing position:
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a seat frame; a seat adapted for movement relative to the seat frame between a lowered position and a raised position; and a movement mechanism for moving the seat between the lowered and the raised positions; wherein the movement mechanism comprises at least one cam pivotally mounted with respect to the seat frame about an axis, the at least one cam including a cam profile, the cam profile supporting and being moveable with respect to the seat such that rotation of the at least one cam results in movement of the seat relative to the seat frame between the lowered position and the raised position, and the at least one cam comprises a multiple piece linkage of a plurality of rigid cam sections, the plurality of rigid cam sections being connected at least one joint, the multiple piece linkage having limited rotational movement about the at least one joint.
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Specification