Mechanical arm mechanism for movably supporting multi-position m

Details Mechanical arm mechanism for movably supporting multi-position m Mechanical arm mechanism for movably supporting multi-position m

1998-12-17

2000-06-27

Ramirez, Ramon O.

Supports

Easel; book, copy or music score holder

Mounted on wall or art device

2482821, 248454, 248462, A47B 9704

Patent

active

060796898

ABSTRACT:
A mechanical arm mechanism for moving a user surface such as an electronic monitor for a computer or television and a related keyboard or control board in an arcuate path from a stored position to one or more user positions at various selected elevations and angles of inclination. The mechanism uses at least one set of spaced apart swingable arms each of which has one end pivotally attached to a respective fixed pivot point on a support member and the opposite end pivotally attached to a respective movable pivot point on the bottom or back side of the electronic monitor with the lengths between the fixed pivot points, the moveable pivot points and the arms forming the sides of a quadrilateral which sides change their relative angular orientation as the table or board is moved in its arcuate path of travel. A similar group of swingable arms also forming a quadrilateral are pivotally connected at one end to fixed pivots on the support member and the opposite ends are pivotally attached to the keyboard or control board member to enable such member to move arcuately with the Monitor from the stored to a user position.

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