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US 4,059,197 AGranted
Spare tire carrier
AssigneeManno Kogyo Company, Limited
InventorHiroshi Iida
Life of this patent
Estimating the term…
Abstract
A spare tire carrier utilizing an eccentric gear mechanism for hoisting a spare tire, in which said mechanism comprises means for restricting the movement of the external gear such that the internal gear driven by the external gear makes the pilgrim-step motion, whereby the mechanism may be positively prevented from the accidental reversal movement so as to prevent the drop of the spare tire.
Claims6
A spare tire carrier for vehicles comprising
- a casing,
- a shaft having a handle engaging portion at one end thereof and rotatably carried by said casing,
- an eccentric cam fastened to said shaft,
- an external gear rotatably fitted over said eccentric cam, said external gear being not only rotatable about its axis but also revolvable about the center of said shaft,
- an internal gear rotatably mounted on said shaft and in mesh with said external gear,
- means for restricting the motion of said external gear such that as said shaft is rotated said external gear causes the pilgrim-step motion of said internal gear, means operatively connected to said internal gear for hoisting a spare tire into an abutting relationship against an abutment surface on said vehicle,
- said pilgrim-step motion being defined by such a motion that while said shaft is being rotated in one direction, said internal gear after it has been rotated through a predetermined angle is temporarily rotated in the direction opposite to that in which it has been rotated, thereby providing the locking effect between said tire and said abutment surface.
4 more elements
Dependencies are inferred from the claim text.