Land vehicles – Wheeled – Body with bracketed-type or nonsuspended axles
Patent
1996-01-26
1998-06-16
Boehler, Anne Marie
Land vehicles
Wheeled
Body with bracketed-type or nonsuspended axles
280 431, 280 4716, 280 472, 280 4729, B62B 310, B62B 312
Patent
active
057658439
ABSTRACT:
A hand truck for moving sheet material has a laterally extending shelf and a generally upright frame, which extends upwardly from the shelf. The frame may be formed by tubular metal of generally inverted U-shape and together with the frame support a load. The hand truck has a pair of inline primary wheels, mounted on fixed parallel axes, near the two ends of the shelf and the lower ends of the two sides of the frame. The two primary wheels lie in a common plane. A turning wheel, also mounted for rotation about a fixed axis, is situated midway between the two primary wheels but slightly out of line therewith. The turning wheel is of smaller diameter than the two primary wheels, and the plane in which it is mounted forms a small acute angle with the plane of the primary wheels. The turning wheel is out of contact with a supporting surface when both primary wheels touch the supporting surface. For movement of the hand truck in a straight path, both primary wheels touch a supporting surface and the turning wheel is out of contact with the supporting surface. For turning movement, one of the two primary wheels and the turning wheels are in contact with the supporting surface, while the other primary wheel is raised slightly above the supporting surface so as to be out of contact. The turning wheels may be adjustably mounted by a hand or foot operated lever.
REFERENCES:
patent: 394385 (1888-12-01), McMillin
patent: 1409838 (1922-03-01), Emery et al.
patent: 2797927 (1957-07-01), Raff
patent: 3043603 (1962-07-01), Major, Sr.
patent: 3306624 (1967-02-01), Goss
patent: 3580601 (1971-05-01), Miles
patent: 3729209 (1973-04-01), Litz
patent: 4488733 (1984-12-01), Hellsten
patent: 4630838 (1986-12-01), Stockton
patent: 4793624 (1988-12-01), Mace
patent: 4921270 (1990-05-01), Schoberg
patent: 4950003 (1990-08-01), Holtz
patent: 5120072 (1992-06-01), Laramie
patent: 5244221 (1993-09-01), Ward
patent: 5284410 (1994-02-01), Sare
patent: 5303940 (1994-04-01), Brandner
patent: 5445399 (1995-08-01), Salvucci
patent: 5531463 (1996-07-01), Givens
LandOfFree
Load-carrying dolly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load-carrying dolly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load-carrying dolly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1717117