Land vehicles – Wheeled – Extensible
Patent
1995-08-24
1996-09-24
Camby, Richard M.
Land vehicles
Wheeled
Extensible
2806551, 280658, B62B 708
Patent
active
055583571
ABSTRACT:
A foldable trolley frame includes an elongated main body, a slide member sleeved movably on the main body, two transverse axle units provided on two sides of the main body and respectively and pivotally connected to the main body, a pair of connecting rods interconnecting the axle unit and the slide member to position the axle units on two sides of the main body, and a pair of support rods which have front end portions pivoted to the main body and rotatable about a horizontal axis which is located near the front end portion of the main body. A U-shaped support has two inclined arms pivoted to the rear end portion of the support rods at the upper ends and rotatable about an upper horizontal axis, and a horizontal section which interconnects the inclined arms and which is connected pivotally to the slide member in such a manner that the arms extend forwardly and upwardly from the horizontal section. The horizontal section of the U-shaped support is rotatable about a lower horizontal axis which is below the upper horizontal axis. The trolley frame can be folded in a one-step operation by moving the U-shaped support frontwardly on the main body so that the axle units and the support rods are adjacent to and generally parallel with the main body.
REFERENCES:
patent: 5356171 (1994-10-01), Schmidlin et al.
patent: 5364119 (1994-11-01), Leu
patent: 5460399 (1995-10-01), Baechler et al.
patent: 5468009 (1995-11-01), Egman et al.
Camby Richard M.
Sci-Tw International Inc.
LandOfFree
Trolley frame foldable in one-step operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Trolley frame foldable in one-step operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trolley frame foldable in one-step operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1923913