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US 4,542,806 AGranted
Folding mechanic's work dolly
OwnerKeith D. Olsoninventor
Life of this patent
Estimating the term…
Abstract
A work dolly affording a mechanic access to a vehicle from the top end. The dolly is foldable into a small assembly that takes very little floor space and is provided with a wheeled support that is operable in all modes of operation. Foldable legs lockably coact with an adjustable foldable worker support to provide a compact portable unit when in the storage mode of operation. The worker support portion may be used by the mechanic in either a sitting or prone position.
Claims10
A portable foldable mechanic's work dolly comprising, in combination;
- a horizontally disposed base member stably supportable upon a horizontal surface and including a pair of spaced, parallel legs extending vertically upwardly therefrom;
- slideable base means disposed on and extending between said parallel legs;
- worker's support means rotatably disposed on said sliding base means, operable between a vertical storage position and a horizontal position;
- locking means operable to restrain said slideable base means when said worker's support means is in said horizontal position;
- and
- foldable support means rotatably disposed on said base member and operable between a vertical storage position and a horizontal position in stabilizing contact with the horizontal surface underneath said worker support means when the latter is in its horizontal position, the foldable support means and the worker's support means when in their respective vertical positions being carried by the horizontally disposed base in a compact orientation with the weight of the vertical elements distributed for balance over the base member, whereby the dolly may be stably supported about a horizontal surface for storage;
- the parallel legs on the base member including a plurality of vertically spaced complimentary disposed locking apertures and the working support means including a pair of locking pins disposed to engage an aperture on each of the legs when said worker's support means is in said horizontal position.
4 more elements
A portable foldable mechanic's work dolly comprising, in combination;
- a horizontally disposed base member stably supported upon a horizontal surface and including a pair of spaced parallel legs extending vertically upwardly therefrom;
- slideable base means disposed on and extending between said parallel legs;
- worker's support means rotatably disposed on said sliding base means, operable between a vertical storage position and a horizontal position;
- locking means operable to restrain said slideable base means when said worker's support means is in said horizontal position, comprising
- respective engageable means carried by the worker's support means and the pair of vertical legs and engageable when the worker's support means is rotated to its horizontal position to lock the latter against vertical movement with respect to the vertical legs;
- and
- foldable support means rotatably disposed on said base member and operable between a vertical storage position and a horizontal position in stabilizing contact with the horizontal surface underneath said worker's support means when the latter is in its horizontal position, the foldable support means and the worker's support means when in their respective vertical positions being carried by the horizontally disposed base in a compact orientation with the weight of the vertical elements distributed for balance over the base member, whereby the dolly may be stably supported upon a horizontal surface for storage.
4 more elements
A portable foldable mechanic's work dolly comprising, in combination;
- a U-shaped, horizontally disposed base member including a pair of parallel legs extending vertically upwardly from the ends of the open end thereof;
- slideable base means disposed on and extending between said parallel legs;
- worker support means rotatably disposed on said sliding base means and operable between a first vertical position and a second horizontal position;
- locking means operable to restrain said sliding base means when said worker support means is in said second position;
- foldable support means rotatably disposed on said U-shaped base member at one end and operable between a first vertical position and a second horizontal position underneath said worker support means;
- and
- further locking means disposed on the foldable support means and operable to engage the base member when said foldable support means is in said second horizontal position and to engage said worker support means when said worker support means and said foldable support means are in said first vertical position.
4 more elements
Dependencies are inferred from the claim text.