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US 4,166,660 AGranted
Roller assembly with roller retention spring
AssigneeThe Torrington Company
InventorWilliam W. Murphy
Life of this patent
Estimating the term…
Abstract
A folded spring extends relatively diametrically across the circle of rollers in a roller assembly with each diametral side pressing between two adjoining rollers to wedge these rollers apart circumferentially and thus to press all the rollers against the wall of the bore in a "keystoning" effect with sufficient force to prevent axial movement of the rollers and to radially retain the rollers in the body. The spring is arranged to be subsequently pushed axially from the body.
Claims8
A roller assembly comprising:
- a body with a cylindrical bore;
- rollers extending lengthwise inside the bore and disposed along side and abutting one another in the bore so as to form a substantially closed circle of rollers;
- and a roller retention mechanism consisting of only a spring including a portion located in a space between two adjoining rollers and adapted to push these rollers apart circumferentially to keystone all the rollers and thus to press all the rollers against the wall of the bore with sufficient force to prevent axial movement of the rollers and to retain the rollers in the body.
Dependencies are inferred from the claim text.