Rotating playground equipment assembly

Details Rotating playground equipment assembly Rotating playground equipment assembly

1984-12-14

1989-10-31

Hafer, Robert A.

Undertaking

A63G 112

Patent

active

048772364

ABSTRACT:
A rotating user-propelled playground equipment assembly or whirl including an equipment support base, a spindle secured to the support base, a rotatable platform assembly supported at least in part by the support base. The rotatable platform assembly includes a hub assembly rotatable about the spindle. A pressure wheel is positioned to constantly rollingly engage the hub assembly. A compression spring urging mechanism is connected to the pressure wheel and urges the pressure wheel into rolling engagement with the hub assembly and thereby automatically retards the rotation of the rotatable platform assembly about the spindle.

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patent: 4091907 (1978-05-01), Tabler
patent: 4505476 (1985-03-01), Rubin

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