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US 4,553,767 AGranted
Roller skate with integral ratchet means
AssigneeThe Quaker Oats Company
InventorsFrederick B. Robjent, Reuben B. Klamer
Life of this patent
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Abstract
A roller skate includes a selectively engagable ratcheting plate that can be positioned for engaging a plurality of teeth formed integrally in one or more wheels of the skate. The plate rides on a cam that is slidably positioned for selective racheting or freewheeling operation. In the ratcheting mode the skate is prevented from rolling backwards thereby making it easier for a beginning skater to use.
Claims9
A roller skate adapted for selectable unidirectional or bidirectional motion comprising:
- a hollow body;
- a plurality of wheels attached to said body, at least one of said wheels having a cylindrical rolling portion including an inner surface surrounding a hollow inner chamber;
- a plurality of ratchet teeth formed in said surface;
- a vertically oriented plate mounted for slidable movement vertically within said body and having pawl means at one end of said plate extending out of said body and at least partially into said chamber;
- and
- control means for moving said plate between a first position wherein said pawl means is lowered into engagement with said teeth in a ratcheting manner and a second position wherein said pawl means is raised out of engagement with said teeth.
3 more elements
Dependencies are inferred from the claim text.