Adjustable support
First Claim
1. An adjustable support comprising:
- a top member;
a bottom member;
a proximal member;
a distal member;
means coupling the top member, bottom member, proximal member, and distal member to form an articulated parallelogram structure;
a constraint link having a first end, a second end and a distal portion, the first end being rotatably coupled to the top member and the second end being rotatably coupled to the bottom member, the distal portion including a coupling point; and
means pivotally connected to said coupling point for moving said constraint link to affect the shape of the parallelogram.
1 Assignment
0 Petitions
Accused Products
Abstract
An adjustable support allows a computer terminal or display device to be conveniently positioned above a desk. The support includes a platform for holding the terminal and a pivotally connected linkage assembly comprising proximal and distal arms for vertically and horizontally positioning the platform, the distal arm having the platform mounted thereon. The proximal arm comprises a set of members forming an articulated parallelogram structure, the proximal end of which is rotatable about a vertical post clamped to the desk. The vertical position of the terminal may be adjusted by changing the shape of the articulated parallelogram structure through operation of a lever coupling members of the articulated parallelogram. As the shape of the parallelogram structure changes, the elevation of the distal end of the proximal arm changes which in turn affects the vertical position of the platform and display device.
201 Citations
16 Claims
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1. An adjustable support comprising:
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a top member; a bottom member; a proximal member; a distal member; means coupling the top member, bottom member, proximal member, and distal member to form an articulated parallelogram structure; a constraint link having a first end, a second end and a distal portion, the first end being rotatably coupled to the top member and the second end being rotatably coupled to the bottom member, the distal portion including a coupling point; and means pivotally connected to said coupling point for moving said constraint link to affect the shape of the parallelogram. - View Dependent Claims (2, 3, 4, 5)
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6. An adjustable support comprising:
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a first pivot mechanism defining a first axis of rotation; a second pivot mechanism defining a second axis of rotation parallel to the first axis of rotation; and a polygonal structure connecting the first pivot mechanism to the second pivot mechanism, wherein said polygonal structure comprises; a top member; a bottom member; a proximal member; a distal member; means coupling the top member, bottom member, proximal member, and distal member to form an articulated parallelogram structure; a constraint link having a first end, a second end and a distal portion, the first end being rotatably coupled to the top member and the second end being rotatably coupled to the bottom member, the distal portion including a coupling point; and means pivotally connected to said coupling point for moving said constraint link to affect the shape of the parallelogram. - View Dependent Claims (7, 8, 9, 10)
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11. An adjustable support comprising:
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a first pivot mechanism defining a first axis of rotation; a second pivot mechanism defining a second axis of rotation parallel to the first axis of rotation; a rigid tubular sleeve having a first flat internal surface; a polygonal structure including a portion having a first flat external surface closely received within said sleeve and slidably engaging said first flat internal surface of said sleeve, said polygon structure connecting the first pivot mechanism to the second pivot mechanism. - View Dependent Claims (12, 13)
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14. An adjustable support comprising:
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a first pivot mechanism defining a first axis of rotation; a second pivot mechanism defining a second axis of rotation parallel to the first axis of rotation; a sleeve; a top member; a bottom member; a proximal member; a distal member; means coupling the top member, bottom member, proximal member, and distal member to form an articulated parallelogram structure, a portion of said parallelogram structure being disposed within and slidably engaging said sleeve and connecting the first pivot mechanism to the second pivot mechanism; a constraint link having a first end, a second end and a distal portion, the first end being rotatably coupled to the top member and the second end being rotatably coupled to the bottom member, the distal portion including a coupling point; and means pivotally connected to said coupling point for moving said constraint link to affect the shape of the parallelogram. - View Dependent Claims (15, 16)
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Specification