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US 6,886,216 B2Granted
Caster leg assembly with adjustment locking means
AssigneeComponent Hardware Group, Inc.
InventorsThomas Graham, Martin P. Burns
Life of this patent
Estimating the term…
Abstract
The caster leg assembly has a slidable collar mounted on a shank that is threaded onto a stud fixed within a hollow table leg. A resiliently deformable ring is positioned between a shoulder on the shank and an inwardly turned end of the leg. A locking nut is threaded onto a threaded portion of the collar to abut the inwardly turned end of the leg. After the shank has been adjusted along the length of the stud, the locking nut is threaded against the end of the leg to cause the collar to be drawn in a direction out of the leg thereby compressively deforming the ring to frictionally engage the collar and leg. This, in turn, locks the shank against rotation relative to the leg.
Claims20
The combination comprising
- a tubular leg;
- a threaded stud disposed concentrically in said leg;
- a shank threaded onto said stud and extending coaxially of and through said leg;
- a collar mounted concentrically of said shank in non-rotatable longitudinally movable relation thereto and within said leg, said collar having an externally threaded annular portion extending through said leg;
- at least one element of resiliently deformable material positioned between said collar and said leg;
- and
- a locking nut threaded onto said threaded annular portion of said collar externally of said leg for abutting against said leg whereby threading of said nut relative to said collar and against said leg draws said collar in a direction out of said leg to resiliently deform said element into frictional engagement with said collar and said leg to lock said collar against rotation relative to said leg.
4 more elements
The combination comprising
- a tubular leg having an inwardly turned end;
- a threaded stud disposed concentrically in said leg;
- a shank threaded onto said stud and extend ing coaxially of and through said leg;
- a collar slidably mounted on said shank in non-rotatable relation thereto and within said leg, said collar having an annular shoulder at one end and an externally threaded annular portion at an opposite end extending through said leg;
- an annular ing of resiliently deformable material positioned between said shoulder of said collar and said inwardly turned end of said leg;
- a nd
- a locking nut threaded onto said threaded annular portion of said collar externally of said leg for threading along said collar and against said inwardly turned end of said leg to draw said collar in a direction out of said leg to resiliently deform said ring into frictional engagement with said collar and said leg to lock said collar against rotation relative to said leg.
4 more elements
The combination comprising
- a tubular leg having an inwardly turned end defining an opening of predetermined diameter;
- a threaded stud disposed concentrically in said leg;
- a shank threaded onto said stud and extending coaxially of and through said leg;
- a collar slidably mounted on said shank in non-rotatable relation thereto and within said leg, said collar having an annular shoulder at one end of smaller diameter than said predetermined diameter of said end of said leg and an externally threaded annular portion at an opposite end extending through said leg;
- an annular ring of resiliently deformable material positioned between said shoulder of said collar and said inwardly turned end of said leg to retain said collar within said leg;
- and
- a locking nut threaded onto said threaded annular portion of said collar externally of said leg for threading along said collar and against said inwardly turned end of said leg to draw said collar in a direction to resiliently deform said ring into frictional engagement with said collar and said leg to lock said collar against rotation relative to said leg.
4 more elements
A caster leg assembly comprising
- a shank having an internally threaded bore;
- a collar slidably mounted on said shank in non-rotatable relation thereto, said collar having an annular shoulder at one end and an externally threaded annular portion at an opposite end;
- at least one element of resiliently deformable material positioned on said collar for abutment against said shoulder;
- a locking nut threaded onto said threaded annular portion of said collar for threading along said collar and against an end of a tubular leg in which said shank is mounted to draw said collar in a direction to resiliently deform said element into frictional engagement with said collar and the tubular leg to lock said collar against rotation relative to the tubular leg;
- a yoke secured to said shank;
- and
- a wheel mounted in said yoke.
4 more elements
Dependencies are inferred from the claim text.