Sawbuck including vierendeel truss construction

A sawbuck comprising;

• three foldable X-shaped sets of legs, each set of legs including:
• at least one pair of legs, each leg having a bore extending therethrough between ends of said legs;
• a sleeve member inserted through said bores in said legs so as to pivotally attache said at least one pair of legs to each other, first and second opposite ends of said sleeve member extending beyond said at least one pair of legs;
• and
• a pair of cylindrical coupling members having radially inner surfaces respectively attached to radially outer surfaces of said first and said second opposite ends of said sleeve member with said at lest one pair of legs being clamped between and in contact with said pair of coupling members;
• a first beam member having a firs en detached to the radially inner surface of a first one of the coupling members of said first set of legs and a second end attached to the radially inner surface of a first one of the coupling members of the third set of legs, and a second beam member having a first end attached to the radially inner surface of a second one of the coupling members of said third set of legs and s second end attached to the radially inner surface of a first one of the coupling members of the second set of legs, whereby said first and second beam members, the sleeve members and said coupling members define a rigid pivot beam about which said three sets of legs pivot;
• a first primary stabilizer beam attached adjacent to a first end of a first one of the legs of each pair and a second primary stabilizer beam attached adjacent to the first end of a second one of the legs of each pair, so that said pivot beam, fist legs and first primary stabilizer beam define a first Vierendeel truss and said pivot beam, second legs and second primary stabilizer beam define a second Vierendeel truss;
• and
• locking means for releasably locking said X-shaped sets of legs and thus said sawbuck in an open position.

A sawbuck comprising:

• a rigid plastic pivot beam;
• three foldable X-shaped sets of wooden legs, each set of legs including at least one pair of wooden legs pivotally attached to each other by said pivot beam between first and second ends of said legs at a pivot point which is further from said first ends of said legs than from said second ends, first and second sets of said legs being pivotally attached to said pivot beam adjacent to respective ends of said pivot beam, and a third done of said sets being pivotally attached to said pivot beam between said first and second sets;
• a first primary stabilizer beam attached adjacent to the first end of a first one of the legs of each pair and a second primary stabilizer beam attached adjacent to the first end of a second one of the legs of each pair, sot hat said pivot beam, first legs and first primary stabilizer beam define a first Vierendeel truss and said pivot beam, second legs and second primary stabilizer beam define a second Vierendeel truss, said pivot beam including couplings for attaching the pivot beam to said sets f legs so that said legs do not move laterally relative to said pivot beam and so that forces applied to the sawbuck are transferred between the pivot beam and the sets of legs so as to rigidify the Vierendeel trusses;
• and
• locking means for releasably locking said X-shaped sets of legs and thus said sawbuck in an open position.

A sawbuck comprising:

• a rigid pivot beam;
• three foldable X-shaped sets of legs, each set of legs including at least one pair of legs pivotally attached to each other between ends of said legs by said pivot beam, fist and second sets of said legs being pivotally attached to said pivot beam adjacent to respective ends of said pivot beam, and a third one of said sets being pivotally attached to said pivot beam between said first and second sets;
• a first primary stabilizer beam attached adjacent to a first end of a first one of the legs of each pair and a second primary stabilizer beam attached adjacent to the first end of a second one of the legs of each pair, so that said pivot beam, first legs and first primary stabilizer beam define a first Vierendeel truss and said pivot beam, second legs and second primary stabilizer beam define a second Vierendeel truss;
• and
• locking means for releasably locking said X-shaped sets of legs and thus said sawbuck in an open position;
• wherein said first and second sets of legs have equal lengths, longer than a length of said third set of legs, so that the first ends of the legs in said first and second sets define support feet which contact a support surface when said sawbuck is placed thereon, and the first ends of the legs in said third set are spaced from said support surface.