US3575309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On and off cargo loading mechanism
Assignee: Individual
•
Filing: 1968-11-01
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Granted: 1971-04-20
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Expires: 1988-11-01
Abstract
Abstract An apparatus for on-and-off loading of cargo in a truck body or the like including a plurality of vertically spaced horizontally extending motor-driven platforms enclosed within a cargo receiving area, each of said horizontal platforms comprising a plurality of spaced, propelled rollers and reversible drive means therefore for on-and-off loading; and a second vertically adjustable platform disposed adjacent an end of said spaced horizontal platforms comprising a plurality of spaced propelled rollers and reversible drive means therefore; and control means for selectively positioning said second platform relative to a determined one of said horizontal platforms and for actuating said drive means for said selected horizontal platform and said vertically adjustable platform whereby cargo may be selectively loaded and unloaded from said cargo storage space.
Inventors
- 👤 Wyatt B Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:33
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/52; B60P1/44; B60P1/4414; B60P1/4421
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
255 words
A loading and unloading device for handling of cargo in the cargo''s original package form without use of pallets, said device adapted to be disposed in the cargo-carrying zone of a vehicle comprising: a. a frame disposed in said cargo zone having a plurality of horizontally extending spaced apart member substantially coextensive with the length of the cargo zone; b. a plurality of sets of load-supporting rollers substantially coextensive with the width of said cargo zone wherein each set is spaced vertically from an adequate set and the outer surfaces of said rollers are formed to adequately move a load disposed thereon; c. means for journaling the opposite ends of said rollers in respective axes of the horizontal members of said frame; d. means for effecting rotational movement of said rollers about the longitudinal axes thereof in said cargo zone and said platform including sprocket means affixed to at least one of the respective ends of said rollers, chain means drivingly interconnecting said sprocket means, and motor means for driving said chain means. e. a load-supporting platform mounted for vertical movement adjacent an end of said set of horizontally arranged rollers said platform including a plurality of spaced apart horizontally arranged load supporting rollers; f. means for effecting rotational movement of said rollers, included in the lift platform, about the longitudinal axes thereof; and g. a door disposed between said storage platforms and said lift platform; and drive means responsive to said control means for raising and lowering said door simultaneously with said lift platform.
Claim 2
Dependent Claim
255 words
A loading and unloading device for handling of cargo in the cargo''s original package form without use of pallets, said device adapted to be disposed in the cargo-carrying zone of a vehicle comprising: a. a frame disposed in said cargo zone having a plurality of horizontally extending spaced apart member substantially coextensive with the length of the cargo zone; b. a plurality of sets of load-supporting rollers substantially coextensive with the width of said cargo zone wherein each set is spaced vertically from an adequate set and the outer surfaces of said rollers are formed to adequately move a load disposed thereon; c. means for journaling the opposite ends of said rollers in respective axes of the horizontal members of said frame; d. means for effecting rotational movement of said rollers about the longitudinal axes thereof in said cargo zone and said platform including sprocket means affixed to at least one of the respective ends of said rollers, chain means drivingly interconnecting said sprocket means, and motor means for driving said chain means. e. a load-supporting platform mounted for vertical movement adjacent an end of said set of horizontally arranged rollers said platform including a plurality of spaced apart horizontally arranged load supporting rollers; f. means for effecting rotational movement of said rollers, included in the lift platform, about the longitudinal axes thereof; and g. a door disposed between said storage platforms and said lift platform; and drive means responsive to said control means for raising and lowering said door simultaneously with said lift platform.
Claim 3
Dependent Claim
22 words
A loading and unloading device as defined in claim 1 including means for effecting selective up and down movement of said platform.
Claim 4
Dependent Claim
149 words
An on-and-off loading mechanism according to claim 2, comprising: a. a plurality of vertically spaced, horizontally disposed cargo storage platforms, said storage platforms including a plurality of horizontally spaced rollers; b. a first drive means for reversibly rotating said rollers forming said storage platforms; c. a lift platform disposed adjacent an end of said vertically spaced platforms, said lift including a plurality of horizontally spaced rollers; d. a second drive means for reversibly rotating said lift rollers; e. a third drive means for vertically reciprocating said lift platform; and, f. control means for selectively operating said first, second and third drive means and responsive to said lift platform for positioning said lift platform relative to said respective storage platforms and for rotating said rollers of said selected storage platforms and of said lift platform whereby cargo may be selectively loaded on-and-off and transferred to and from said storage platforms.
Claim 5
Dependent Claim
25 words
Apparatus as defined in claim 3, including latch means for releasably locking said lift platform into position relative to selective ones of said storage platforms.
Claim 6
Dependent Claim
99 words
Apparatus as defined in claim 4, wherein said latch means comprises: a. a pair of spaced rails extending vertically between said storage platforms and said lift platform; b. oppositely disposed notches formed in said respective rails adjacent each storage platform; c. limit switches positioned adjacent said notches and connected to said control means for stopping said third drive means; d. a spring-loaded latch for normally urging said latch outwardly in said notches to lock said lift in position; and actuator means responsive to said control means for withdrawing said latch from said notches when said lift is moved downwardly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |