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US 4,517,698 AGranted
Cargo handling ramp
OwnerThomas A. Lamp'l, Randall W. Ebyinventors
Life of this patent
Estimating the term…
Abstract
A cargo handling ramp including a support frame and an inclined walkway provided with hand rails along the walkway and rollers beneath the frame for moving it over a surface wherein a mechanism is provided for raising and lowering the lowermost end of the walkway relative to the upper end of the walkway to adjust the incline of the walkway for use of the device in loading operations and wherein a rub rail type brake is provided to control rate of descent of wheeled standard size cartons or containers down the ramp to avoid dangerous situations.
Claims11
A cargo handling ramp comprising:
- (a) a frame including an elongated walkway disposed along an upper portion thereof and said walkway including a higher end and a lower end,
- (b) a plurality of legs extending substantially from said walkway downwardly and terminating at a lower frame portion,
- (c) roller means secured in movably supporting relation to said frame and beneath said lower frame portion and disposed and structured to accommodate movement of said ramp,
- (d) a position locking means connected to said frame and structured to secure said ramp against lateral movement over a surface on which it is mounted,
- (e) incline adjusting means connected to said frame substantially adjacent said lower end of said walkway an including means for positioning said incline adjusting means into frame supporting relation relative to the surface on which said ramp is mounted, said incline adjusting means disposed and structured for selective raising and lowering of the lower end relative to the surface, whereby an inclined, angular orientation between said higher end and lower end may be varied,
- (f) braking means comprising two rub rails each having an elongated configuration and disposed in substantially parallel, spaced apart relation and extending along the length of said walkway on opposite sides thereof, said rub rails movably connected to said frame and positionable relative to one another into and out of engaging relation to carriers traveling along said walkway, and
- (g) said braking means further compirising means to normally position said rub rails into the constricting relation to carriers traveling along the length of the walkway between said rub rails.
4 more elements
A cargo handling ramp comprising:
- (a) a frame including an elongated walkway disposed along an upper portion thereof and said walkway including a higher end and a lower end,
- (b) a plurality of legs extending substantially from said walkway downwardly and terminating at a lower frame portion,
- (c) roller means secured in movable supporting relation to said frame and beneath said lower frame portion and disposed and structured to accommodate movement of said ramp,
- (d) a position locking means connected to said frame and structured to secure said ramp against lateral movement over the surface on which it is mounted,
- (e) incline adjusting means connecting to said frame substantially adjacent said lower end of said walkway and including means for positioning said incline adjusting means into frame supporting relation realtive to the surface on which said ramp is mounted, said incline adjusting means disposed and structured for selective raising and lowering of the lower end of the walkway relative to the surface on which the ramp is mounted, whereby an inclined, angular orientation between said higher end and lower end of said walkway may be varied,
- (f) a lift mechanism connected to said frame adjacent said lower end thereof and including a substantially horizontally oriented platform selectively movable relative to and independent of said frame in a vertical direction relative to the surface on which the ramp is mounted, whereby said platform is virtually positionable relative to the frame and independent of raising or lowering said lower end of said walkway to adjust the incline thereof, and
- (g) a braking means comprising two rub rails each having an elongated configuration and disposed in substantially parallel, spaced apart relation and extending along the length of said walkway on opposite sides thereof, said rub rails movably interconnected to said frame and positionable relative to one another and into and out of constricting relation to carriers traveling along said walkway.
4 more elements
Dependencies are inferred from the claim text.