Hand truck

Claim 2

A truck of the character described comprising: a frame having a pair of elongated substantially parallel side members, a pair of wheels, and a pair of support means having inner portions which are respectively pivotally and slidably connected to said side members, said support means also having outer portions which respectively carry said wheels, a pair of struts having outer ends respectively connected to said side members and inner ends for respectively engaging said pair of support means, and locking means adjustable on said side members for detachably locking the inner ends of said struts in engagement with said support means for maintaining said wheels in substantially operative positions for use.

Claim 3

The truck defined in claim 1, including a platform pivotally connected to the lower ends of said side members, and said locking means also serves to lock said platform in a forwardly extended operative position for use.

Claim 4

The truck defined in claim 1, including an arch-shaped frame having side members, and means for adjustably connecting these side members to the side members of said first-mentioned frame whereby to provide a continuation of the latter.

Claim 5

The truck defined in claim 1, including a platform which is pivotally connected to a lower extremity of said frame, said locking means may be utilized to lock said platform in a predetermined forwardly extended operative position for use, and an additional frame is adjustably connected to said first-mentioned frame whereby to constitute a continuation of the latter.

Claim 6

The truck defined in claim 1, in which the outer ends of said struts are pivotally connected to the side members and said locking means also serves to allow said support means and wheels carried thereby and struts to be adjusted to collapsed conditions, in which the wheels are located substantially parallel to the plane of the frame.

Claim 7

The truck defined in claim 1, in which said struts are provided with fixed runners for leverage purposes.

Claim 8

A truck of the character described comprising: a primary frame having a pair of elongated parallel side members and a secondary frame, means whereby one of said frames may be secured in an extended position to constitute a continuation of the other of said frames or to a substantially collapsed condition, a pair of wheels, a pair of support means having inner portions which are respectively pivotally and slidably connected to said side members, said support means also having outer portions which respectively carry said wheels, a pair of struts having outer ends adjustably connected to said primary frame and inner ends which are respectively engageble with said support means, a platform pivotally connected to said primary frame, and movable locking means whereby the inner ends of said struts may be locked in engagement with said support means to locate said wheels for use and said platform is locked in a forwardly extended operating position relative to said primary frame for use, said locking means also affording a setup whereby said wheels and support means as units and said struts may be adjusted to collapsed conditions whereby said wheels are located in a longitudinal relationship in a plane subsTantially parallel to the plane of said primary frame, and said platform may be moved to an inoperative position in a plane substantially parallel to said primary frame.

Claim 9

A truck of the character described comprising: a primary frame having a pair of elongated parallel side members and a secondary frame, means whereby one of said frames may be secured in an extended position to constitute a continuation of the other of said frames or to a substantially collapsed condition, a pair of wheels, a pair of support means having inner portions which are respectively pivotally and slidably connected to said side members, said support means also having outer portions which respectively carry said wheels, a pair of struts having outer ends adjustably connected to said primary frame and inner ends which are respectively engageble with said support means, a platform pivotally connected to said primary frame, and movable locking means whereby the inner ends of said struts may be locked in engagement with said support means to locate said wheels for use and said platform is locked in a forwardly extended operating position relative to said primary frame for use, said locking means also affording a setup whereby said wheels and support means as units and said struts may be adjusted to collapsed conditions whereby said wheels are located in a longitudinal relationship in a plane subsTantially parallel to the plane of said primary frame, and said platform may be moved to an inoperative position in a plane substantially parallel to said primary frame.

Claim 10

The truck defined in claim 7, whereby when said units, struts, platform, and secondary frame are collapsed the latter is located between said primary frame and said platform.

Claim 11

The truck defined in claim 7, whereby when said units, struts, platform, and said secondary frame are collapsed the latter is located between said primary frame and said platform, and said locking means may be moved so that portions thereof may be located between said struts and portions of said primary frame.

Claim 12

A truck of the character described comprising: a frame having a pair of elongated substantially parallel side members, a pair of support means having inner portions respectively pivotally and slidably connected to said side members said support means also having outer portions, wheels respectively mounted on outer portions, a pair of struts having outer ends respectively pivotally and slidably connected to said side member and inner ends respectively engaging said pair of support means and means carried by said support means for locking said inner ends of said struts to said support means.

Claim 13

A truck of the character described comprising: a frame having a pair of elongated substantially parallel side members, a pair of support means having inner portions respectively pivotally and slidably connected to said side members said support means also having outer portions, wheels respectively mounted on outer portions, a pair of struts having outer ends respectively pivotally and slidably connected to said side member and inner ends respectively engaging said pair of support means and means carried by said support means for locking said inner ends of said struts to said support means.

Claim 14

The truck defined in claim 10, including a platform carried by said side members at a location below said support means, and second locking means pivotally connected to said side members for locking said first-mentioned locking means in place, and means for locking said second-mentioned locking means and said platform in locked relation to said side members.

Claim 15

The truck defined in claim 10, including a second frame having an arch and side members connected to the side members of said first-mentioned frame, a pair of apertured lugs carried by said arch, a fitting having ends journaled in the apertures of said lugs and an externally threaded shank, and an internally threaded handle carried by said shank, said handle being manually operable whereby the same may be caused to engage certain portions of said lugs for maintaining said handle in outwardly extended position for use or may be caused to engage other portions of the lugs for locking the handle substantially between said side members of said second frame for nonuse.