Bell assembly for a chair support

Supports – Stand – Standard type

Patent

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Details

F16M 1100

Patent

active

041812808

ABSTRACT:
A bell assembly is shown for adjusting the height of a chair base. The bell assembly is threaded onto a support post slidably located in a hub and the bell assembly is turned to regulate the height of the support post relative to the hub. The bell assembly includes a spring retaining clip for engagement with the hub to prevent axial separation of the support post and the hub when the chair is lifted. The spring retaining clip includes a C-shaped base portion which engages a bell nut in the bell assembly to prevent longitudinal movement of the retaining clip relative to the bell assembly. The bell assembly also includes a bell housing having a wall portion located adjacent to the retaining clip base portion to prevent rotational movement thereof and disengagement of the retaining clip and bell nut.

REFERENCES:
patent: 1699551 (1929-01-01), Travers
patent: 2999665 (1961-09-01), Ericson et al.
patent: 3218021 (1965-11-01), Michalshi
patent: 3406939 (1968-10-01), Doerner
patent: 3606234 (1971-09-01), Prescott

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