Patent ID: 7223041
Filing Date: 2007-05-29
Classification: A47B,F16B,F16M,Y10T

Abstract:
1. A camming coupler for removably attaching a music desk to an upright support of a music stand, the camming coupler including: an inner sleeve for receiving the upright support, the inner sleeve having a cammed exterior surface, substantially the entire exterior surface increasing in thickness around its outer circumference, starting from a point of minimum thickness and ending at a point of maximum thickness adjacent to the point of minimum thickness, to form a single inner sleeve cam lobe, and the inner sleeve has at least one longitudinal slit formed therein; an attachment member integral with and extending from the inner sleeve, the attachment member adapted to be pivotally attached to the music desk; the inner sleeve receivable within an outer sleeve, the outer sleeve having a cammed interior surface, substantially the entire cammed interior surface increasing in thickness around its inner circumference, starting from a point of minimum thickness and ending at a point of maximum thickness adjacent to the point of minimum thickness, to form a single outer sleeve cam lobe, the cammed interior surface of the outer sleeve substantially corresponding to the cammed exterior surface of the inner sleeve; and the outer sleeve is rotatable between a position of nesting alignment with the inner sleeve and with substantially the entire cammed interior surface of the outer sleeve and substantially the entire cammed exterior surface of the inner sleeve in nesting alignment; and a position of compressing engagement with the inner sleeve.