Ergonomic armrest
First Claim
Patent Images
1. A chair comprising:
- (a) a back support;
(b) an adjustable armrest mechanism, the adjustable armrest mechanism comprising;
i. an armrest comprising a terminal end;
ii. a first parallel bar comprising a first end and a second end, wherein the first end of the first parallel bar is pivotably connected to the armrest, and wherein the second end of the first parallel bar is pivotably connected to the back support;
iii. a second parallel bar comprising a first end and a second end, wherein the first end of the second parallel bar is pivotably connected to the armrest; and
iv. a positioning means for releasably connecting the second end of the second parallel bar to the back support, wherein the positioning means disengages when the terminal end of the armrest is raised.
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Accused Products
Abstract
Disclosed is an adjustable armrest that can readily raised, or lowered, and optionally rotated in a horizontal plane. In one embodiment, the present armrest is released from its use position be raising the front portion of the armrest. The armrest is moved into the desired position and then the front portion is lowered to secure the armrest in the desired position.
94 Citations
9 Claims
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1. A chair comprising:
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(a) a back support; (b) an adjustable armrest mechanism, the adjustable armrest mechanism comprising; i. an armrest comprising a terminal end; ii. a first parallel bar comprising a first end and a second end, wherein the first end of the first parallel bar is pivotably connected to the armrest, and wherein the second end of the first parallel bar is pivotably connected to the back support; iii. a second parallel bar comprising a first end and a second end, wherein the first end of the second parallel bar is pivotably connected to the armrest; and iv. a positioning means for releasably connecting the second end of the second parallel bar to the back support, wherein the positioning means disengages when the terminal end of the armrest is raised. - View Dependent Claims (2, 3, 4)
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5. A chair comprising:
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(a) a back support; (b) an adjustable armrest mechanism, the adjustable armrest mechanism comprising; i. an armrest; ii. a first parallel bar comprising a first end and a second end, wherein the first end of the first parallel bar is pivotably connected to the armrest, and wherein the second end of the first parallel bar is pivotably connected to the back support; iii. a second parallel bar comprising a first end and a second end, wherein the first end of the second parallel bar is pivotably connected to the armrest; iv. a first positioning means for releasably connecting the second end of the first parallel bar to the back support; and v. a second positioning means for releasably connecting the second end of the second parallel bar to the back support. - View Dependent Claims (6, 7, 8)
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9. A chair comprising:
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(a) a back support; (b) an adjustable armrest mechanism, the adjustable armrest mechanism comprising; i. an armrest; ii. a first parallel bar comprising a first end and a second end, wherein the first end of the first parallel bar is pivotably connected to the armrest, and wherein the second end of the first parallel bar is pivotably connected to the back support; iii. a second parallel bar comprising a first end and a second end, wherein the first end of the second parallel bar is pivotably connected to the armrest; iv. a positioning means for releasably connecting the second end of the second parallel bar to the back support; and v. a mechanism to permit pivotal horizontal repositioning of the armrest, the horizontal pivot mechanism comprising; 1. a clevis base attached to the first ends of the first and second parallel bars; 2. a pivot pin attaching the armrest to the clevis base, the pivot pin defining a horizontal axis of rotation for the armrest such that the armrest pivots in a horizontal plane about the pin; and 3. an index arm connected to the pin, wherein the index arm engages one or more index arm limiters to restrict the armrest'"'"'s range of movement in the horizontal plane.
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Specification