Rotatable seat
First Claim
1. Rotatable disc arrangement as a seating surface for physically handicapped people, with a bottom plate, a top plate with an outer rim, the top plate being pivotally mounted to the bottom plate, an upholstery pad with a circumferential rim, centrally arrayed on said top plate, and a removable, circular-contoured retaining ring which is attached to the top plate and engages over both the circumferential rim of the upholstery pad and the outer rim of the top plate, characterized in that the outer rim of the top plate has a regular polygonal circumferential contour with a plurality of rim elements of the same length which are substantially straight-lined in nature, and with a transition between each pair of adjacent rim elements, and that the retaining ring is manufactured as a single piece having an outer annulus which, in it axial section, is hook-shaped and elastically deformable, which retaining ring engages around the top plate at least at each transition between each pair of adjacent rim elements, and at these transitions is securely located against the outer rim of the top plate.
1 Assignment
0 Petitions
Accused Products
Abstract
Pivot-mounted on a bottom plate (12) is a top plate (14) which supports an upholstery pad (16), the latter being secured by a retaining ring (18) around the circumference of said top plate (14). The top plate (14) has an outer rim with a polygonal contour so that the retaining ring (18) only engages under said top plate (14) at the polygon corners. This gives rise to a number of clamping zones arranged at intervals around the circumference, between which there are permanent cavities. The retaining ring (18) can thus be easily removed, by local deformation, from the top plate (14) to enable the rotatable seat (10) to be cleaned.
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Citations
10 Claims
- 1. Rotatable disc arrangement as a seating surface for physically handicapped people, with a bottom plate, a top plate with an outer rim, the top plate being pivotally mounted to the bottom plate, an upholstery pad with a circumferential rim, centrally arrayed on said top plate, and a removable, circular-contoured retaining ring which is attached to the top plate and engages over both the circumferential rim of the upholstery pad and the outer rim of the top plate, characterized in that the outer rim of the top plate has a regular polygonal circumferential contour with a plurality of rim elements of the same length which are substantially straight-lined in nature, and with a transition between each pair of adjacent rim elements, and that the retaining ring is manufactured as a single piece having an outer annulus which, in it axial section, is hook-shaped and elastically deformable, which retaining ring engages around the top plate at least at each transition between each pair of adjacent rim elements, and at these transitions is securely located against the outer rim of the top plate.
Specification