Work holding apparatus
AssigneeMcCanse Engineering, Incorporated
InventorJames E. McCanse
Life of this patent
Estimating the term…
Abstract
The preferred apparatus is in the form of a service lift for holding a machine such as a walk-behind lawnmower during servicing and repair thereof. The lift includes a main support movable upwardly and downwardly on a column, a subsupport adapted to be rotated to and held in various angular positions relative to the main support, and side-by-side tubes on the subsupport for telescopically receiving bars for supporting the mower or other machine during servicing. The supporting bars extend in opposite directions from the side-by-side tubes and may be laterally adjusted relative to the tubes to match the width of the machine being serviced. Supporting bars for other types of machines may be inserted into the tubes, and the main support and the subsupport may be vice-mounted rather than column-mounted.
Claims13
Work holding apparatus comprising a main support, a subsupport mounted on said main support to rotate about a predetermined axis, means for releasably holding said subsupport in selected angular positions about said axis, said subsupport comprising first and second side-by-side tubes extending transversely of said axis, each of said tubes being sized to telescopically receive a work holder, at least one work holder having a bar telescoped slidably in one of the tubes, and means for releasably pinning the work holder to each of said tubes so as to prevent the work holder from sliding in the tube as the subsupport is pivoted about the main support.
Work holding apparatus comprising a main support, a subsupport mounted on said main support to rotate about a predetermined axis, means for releasably holding said subsupport in selected angular positions about said axis, said subsupport comprising first and second side-by-side tubes extending transversely of said axis, each of said tubes being sized to telescopically receive a work holder, and means for releasably attaching a work holder to each of said tubes;
- wherein:
- said main support and said subsupport comprise first and second sleeves, respectively, said second sleeve being telescoped with said first sleeve and being rotatable relative to said first sleeve about said axis, said holding means comprising a latch supported by one of said sleeves to move between latched and unlatched positions, a plurality of angularly spaced detents carried by the other sleeve, said latch normally being disposed in said latched position and coacting with a selected one of said detents to hold said second sleeve in a selected angular position relative to said first sleeve, said latch being manually movable to said unlatched position and being free of said detents when in said unlatched position so as to enable rotation of said second sleeve relative to said first sleeve;
- and
- said second sleeve is telescoped over said first sleeve, said latch comprising a latching member having a free end portion and pivotally supported in said first sleeve to swing between said latched and unlatched positions, a plate attached to said second sleeve and having an axially extending opening for receiving the free end portion of said latching member when said latching member is in said unlatched position, said detents comprising a plurality of notches formed in and spaced angularly around the edge portion of said opening, said latching member being received in one of said notches when said latching member is in said latched position.
Work holding apparatus comprising first and second sleeves, said second sleeve being telescoped onto and rotatable relative to said first sleeve, means on said second sleeve for supporting a work holder, and means for holding said second sleeve releasably in a preselected angular position relative to said first sleeve, said holding means comprising a latching member having a free end portion and pivotally supported in said first sleeve to swing between latched and unlatched positions, a plate attached to said second sleeve and having an axially extending opening for receiving the free end portion of said latching member when said latching member is in said unlatched position, and a plurality of notches formed in said plate and spaced angularly around the edge portion of said opening, said latching member being received in one of said notches when said latching member is in said latched position.
Dependencies are inferred from the claim text.