Land vehicles – Wheeled – Attachment
Patent
1989-09-06
1990-08-14
Marmor, Charles A.
Land vehicles
Wheeled
Attachment
182 88, 296 3714, B62D 2520
Patent
active
049481690
ABSTRACT:
A storage apparatus for flatbed trailers includes a storage box which swings out to the side from beneath the trailer bed for loading and unloading. When in an up, traveling position, a lip on the front of the storage box engages a flange of the trailer side rail to support the front of the box, while a U-shaped frame connected to the trailer framework provides support beneath the rear of the box. Two arm members are pivotally mounted between the trailer framework and the sides of the box, and support the box while not in the up position. The pivotal attachments of the arm members to the box are located so that the box is unbalanced with the front biased downwards. Curved rail members, supported by the trailer framework, engage rollers attached to the rear of the box to control its upward movement. Dual-acting air cylinders are pivotally attached between the trailer framework and the arm members. Retraction of the air cylinders disengages the front of the box from the side rail and allows it to drop, thereby disengaging support from the rear of the box. Expansion of the air cylinder then pivots the attached arm member and box down and outward until the box is exposed. Subsequent retraction of the air cylinder pivots the attached arm member and storage box up and beneath the flatbed trailer. Manual lifting of a handle member on the front of the box engages the rear of the box with the U-frame support and, while so lifted, expansion of the air cylinder reengages the front of the box with the trailer side rail.
REFERENCES:
patent: 976561 (1910-11-01), Evans
patent: 2455417 (1948-12-01), Holan et al.
patent: 3764048 (1973-10-01), Gore
patent: 4087032 (1978-05-01), Miller et al.
patent: 4623160 (1986-11-01), Trudell
patent: 4830242 (1989-05-01), Painter
Ingman John F.
Mar Michael
Marmor Charles A.
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