Adjustable support apparatus such as adjustable bookends

Details Adjustable support apparatus such as adjustable bookends Adjustable support apparatus such as adjustable bookends

1996-11-12

1999-02-16

Chin-Shue, Alvin

Supports: racks

Special article

Book support type

A47F 700

Patent

active

058711040

ABSTRACT:
An apparatus for supporting a variable number of objects, such as books or CDs, on a shelf unit includes two or more relatively movable support members having surfaces defining substantially opposed planes of support for supporting the objects, and a constant force spring operably connecting the two support members to support the variable number of objects therebetween. The apparatus can include: a track section affixable parallel to a shelf unit; at least one constant force spring; at least one slidable track element constrained for longitudinal movement along the track section, the slidable track element being operably connected to the constant force spring; and/or at least one support member defining a plane of support for the objects connected to the slidable track element. The support member, which is movable due to its connection to the slidable track element, is capable of retaining at least one book or other object between the support member and a second support member, which can be part of the existing shelf unit or a fixed or movable support member having a surface defining an opposed plane of support for an opposite end of the objects downwardly suspended from the track section. To aid in operability, a rate of travel governor, lock member and handle can be provided.

REFERENCES:
patent: 1674582 (1928-06-01), Wheeler
patent: 2545844 (1951-03-01), Cougias
patent: 2911103 (1959-11-01), Kunkler
patent: 3389805 (1968-06-01), Yoemans
patent: 4128120 (1978-12-01), Frey
patent: 4135626 (1979-01-01), Cawood
patent: 4606465 (1986-08-01), Moustakas
patent: 4742936 (1988-05-01), Rein
patent: 5217122 (1993-06-01), Martinez
The Bookworm, Helix Ltd., date unknown.

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