Wheel unit for a slidable infant chair

Details Wheel unit for a slidable infant chair Wheel unit for a slidable infant chair

1990-12-11

1991-11-05

Spruill, Robert L.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Pintle retainers

16 30, B60B 3300

Patent

active

050621785

ABSTRACT:
This invention relates to a wheel unit for a slidable infant chair. The characteristic of this invention is in that there is a rod cap positioned at the upper part of the wheel unit. The rod cap has a hollow for receiving in a rod. There are two opposite U-shape cut, whose interiors become two elastic fragments, positioned in the upper side wall of the rod cap. The lower side wall of the rod cap is attached by a flanged annulus, which has fine projecting stripes around the side surface and has a splintery upward surface. In assemblage, first, insert a rod into the hollows of a rod supporter and the rod cap so as to assemble them. Then, insert the upper part of the assembled wheel unit into a fixing sleeve under an annular frame of a slidable infant chair, with the condition that the two opposite U-shape fragments spring outward for the wheel unit to be fixed in the fixing sleeve.

REFERENCES:
patent: 938866 (1909-11-01), Humphrey
patent: 1912795 (1933-06-01), Rice et al.
patent: 2173950 (1939-09-01), Parkhill
patent: 2434863 (1948-01-01), Parkhill
patent: 4068342 (1978-01-01), Carrier
patent: 4793021 (1988-12-01), Deasy et al.
patent: 4953257 (1990-09-01), Andre

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