Headrest linkage
AssigneeThe Brewer Company, LLC
InventorsJack A. DeBraal, Michael J. Marchant
Life of this patent
Estimating the term…
Abstract
A linkage mechanism for an adjustable arm assembly. The linkage assembly may be used to support an object, such as a headrest for use in connection with an examination table. The linkage mechanism provides structure to interlock or disengage two adjoining arm sections. The linkage mechanism controls relative movement of two adjoining arm sections without affecting the movement of non-adjoined sections or the headrest. The linkage mechanism further provides friction retention means so that the adjoining arms will retain their relative position to one another even if they are not in an interlocked position.
Claims22
An adjustable linkage mechanism for pivotable support of an object, said linkage comprising:
- a supporting pivot shaft;
- a pair of arms rotatably mounted on said supporting pivot shaft, said arms being in a releasable interlocking relationship relative to one another;
- a handle connected to said shaft, said handle providing means for allowing interlocking engagement of said arms;
- and
- friction retention means for resisting rotational movement of said arms, said friction retention means allowing said arms to retain said position of said interlocking relationship while said arms are in an axially disengaged relationship.
An adjustable linkage assembly for pivotable support of an object, said linkage assembly comprising:
- a plurality of arms connected end to end in a releasable interlocking relationship;
- and
- a plurality of linkage mechanisms for pivotably connecting said arms, each of said linkage mechanisms further comprising a handle for moving said arms from an interlocking position to a disengaged position and friction retention means for allowing said arms to retain a relative position to one another, said friction retention means allowing said arms to retain said position of said interlocking relationship while in said disengaged position, each of said linkage mechanisms independently adjusted by said respective handle.
Dependencies are inferred from the claim text.