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US 2006/0052193 A1Published application
Pivot assembly
AssigneeExmark Manufacturing Company, Incorporated
InventorsBenjamin Davis, Garry Busboom
Life of this patent
Estimating the term…
Abstract
A pivot assembly to permit relative pivotal motion of a sleeve of the pivot assembly about a pivot axis. The pivot assembly may contain a spherical bearing assembly therein. The spherical bearing assembly may include a spherical portion and a tubular portion, wherein the tubular portion is operable to form a sealing surface, e.g., a sealing member may seal directly with the tubular portion.
Claims36
A pivot assembly comprising:
- a sleeve operable to pivot about a pivot axis;
- a first spherical bearing assembly positioned within the sleeve, wherein the first spherical bearing assembly comprises:
- an inner ball comprising a spherical portion and a first tubular portion;
- and
- an outer ring positioned between the sleeve and the spherical portion of the inner ball;
- and
- a sealing member positioned between the sleeve and the first tubular portion of the inner ball.
4 more elements
A pivot assembly comprising:
- a sleeve operable to pivot about a pivot axis;
- a first spherical bearing assembly and a second spherical bearing assembly both located within the sleeve, each of the first and second spherical bearing assemblies comprising;
- an inner ball comprising a spherical portion positioned between a first tubular portion and a second tubular portion;
- and
- an outer ring positioned between the sleeve and the spherical portion of the inner ball;
- and
- a first sealing member associated with the first spherical bearing assembly and a second sealing member associated with the second spherical bearing assembly, wherein the first and second sealing members are positioned between the sleeve and the first tubular portion of each of the first and second spherical bearing assemblies, respectively.
4 more elements
A pivot assembly comprising:
- a sleeve operable to pivot about a pivot axis;
- and
- a spherical bearing assembly positioned within the sleeve, wherein the spherical bearing assembly comprises:
- an inner ball comprising a spherical portion and a tubular portion;
- and an outer ring positioned between the sleeve and the spherical portion of the inner ball.
2 more elements
An idler assembly for use with tensioning an endless drive member, the idler assembly comprising:
- a rotatable idler sheave for biasing the endless drive member;
- an idler pivot assembly operable to permit pivotal motion of the idler sheave about a pivot axis, the idler pivot assembly comprising:
- a sleeve;
- two spherical bearing assemblies positioned inside the sleeve;
- and
- a shaft member passing through the two spherical bearing assemblies and operable to pivotally attach the idler pivot assembly to structure;
- and
- an idler arm connecting the sleeve to the idler sheave.
5 more elements
Dependencies are inferred from the claim text.