Extractor for bushing and its associated method of use
OwnerJohn Antony Smithinventor
Life of this patent
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Abstract
To extract a bushing from a housing, a number of cylindrical engaging elements are inserted in the bore of the bushing. The elements are clipped together by clips and have a lip which bears on the bushing end surface. An extractor head pushes on the elements to force the bushing from the housing.
Claims17
An engaging device for engaging an end of a bushing prior to extraction of the bushing from a housing, the device comprising a plurality of engaging elements each having a laterally extending lip thereon, and a connector for releasably connecting the elements together, wherein the connected elements form a chain which is flexible to allow the chain to be rolled up for insertion in a bushing, and unrolled to place the elements against the bushing inner surface.
An engaging device for engaging an end of a bushing prior to extraction of the bushing from a housing, the device comprising:
- a plurality of engaging elements each having a laterally extending lip thereon,
- a connector for releasably connecting the elements together,
- an engaging element formed by a generally cylindrical pin, and
- wherein the connector comprises an arcuate cross-section channel for receiving a pin to resiliently grip the pin, the connector being rotatable about the pin.
An engaging device for engaging an end of a bushing prior to extraction of the bushing from a housing, the engaging device comprising a plurality of pins, a first pin of the plurality of pins includes a projection, a second pin of the plurality of pins includes a recess adapted to receive the projection, the first and second pins being connected together by the projection engaging in the recess, and the first and second pins having a laterally extending lip for engaging an end of the bushing.
A method of extracting a bushing from a housing, the method comprising:
- selecting a plurality of separately formed engaging elements to match a diameter of a bushing;
- releasably clipping together adjacent ones of the plurality of separately formed engaging elements such that a lip, adapted to engage an end surface of the bushing, extends outwardly;
- placing the clipped together engaging elements within the bushing;
- and
- applying pressure to ends of the elements such that the lips transfer the pressure to the end surface of the bushing to force the bushing from the housing.
Dependencies are inferred from the claim text.