Guide sleeve for a length-adjustable column for chairs or tables
AssigneeSuspa Compart Aktiengesellschaft
InventorHans J. Bauer
Life of this patent
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Abstract
A guide sleeve for a length-adjustable column for chairs is provided with an outside to be received and supported in a guide tube of the column. The guide sleeve is further provided with an internal surface, on which guide webs are formed which project towards a central longitudinal axis. The guide webs are separated from each other by recesses. On the guide webs, there are partial cylinder surfaces concentric of the axis and which are formed as guide surfaces for the housing of a length-adjustable element.
Claims9
A guide sleeve for a length-adjustable column for chairs or tables, of which an outside is formed to be received and supported in a guide tube (2) of the column and which is provided on an internal surface (8) with a guide surface concentric of a central longitudinal axis (4) to a guide cylindrical housing (9) of an adjusting element (10) and which is made in one piece of plastic material, wherein guide webs (11) are formed on said internal surface (8) which project towards the central longitudinal axis (4) and which are separated from each other by recesses (13) and wherein, produced on the guide webs (11) by chip removal, partial cylinder surfaces (12) concentric of the axis (4) are formed as guide surfaces for the housing (9) and wherein it is provided with rib webs (5) which project outwards radially to the central longitudinal axis (4) and wherein the width (a) of the recesses (13) in the circumferential direction exceeds the width (b) of the partial cylinder surfaces (12) in the circumferential direction.
Dependencies are inferred from the claim text.