US3741418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Materials handling vehicle
Assignee: Eaton Corp
•
Filing: 1972-03-17
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Granted: 1973-06-26
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Expires: 1992-03-17
Abstract
Abstract A load lifting vehicle including a shuttle which can be rotated free of the load to provide end loading and unloading. The shuttle assembly is mounted on a rotatable platform such that the shuttle table can be extended to either side of the vehicle transversely to the path of travel, or toward one end thereof parallel to the path of travel. Load-receiving pads capable of supporting the load are provided so that relative vertical movement of the shuttle table and the pads will free the shuttle of the load. The shuttle assembly can then be rotated 90* to provide end loading.
Inventors
- 👤 R Gamundi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:47
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/14; B66F9/141
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 words
A material handling vehicle comprising a main frame assembly including a vertical mast, an elevating load carriage mounted for vertical movement along said mast, a shuttle assembly rotatably mounted on said carriage and adapted to support a load, means for extending a portion of said shuttle assembly transversely to said frame assembly, means for rotating said shuttle assembly in a horizontal plane, auxiliary load supporting means mounted on said carriage, and means for moving said shuttle assembly and said auxiliary load supporting means relative to one another to transfer a load from said shuttle assembly to said auxiliary load supporting means while said shuttle assembly is rotated free of said load.
Claim 2
Dependent Claim
111 words
A material handling vehicle comprising a main frame assembly including a vertical mast, an elevating load carriage mounted for vertical movement along said mast, a shuttle assembly rotatably mounted on said carriage and adapted to support a load, means for extending a portion of said shuttle assembly transversely to said frame assembly, means for rotating said shuttle assembly in a horizontal plane, auxiliary load supporting means mounted on said carriage, and means for moving said shuttle assembly and said auxiliary load supporting means relative to one another to transfer a load from said shuttle assembly to said auxiliary load supporting means while said shuttle assembly is rotated free of said load.
Claim 3
Dependent Claim
36 words
A material handling vehicle as claimed in claim 1, in which said auxiliary load supporting means includes load engaging means and means for extending said load engaging means to lift a load from said shuttle assembly.
Claim 4
Dependent Claim
28 words
A material handling vehicle as claimed in claim 1, in which said auxiliary load supporting means comprises a plurality of auxiliary load support members surrounding said shuttle assembly.
Claim 5
Dependent Claim
66 words
A material handling vehicle as claimed in claim 3, in which each of said auxiliary load support members comprises a housing, a load engaging pad mounted fOr vertical movement relative to said housing, an input shaft extending from said housing, means for rotating said shaft, and means within said housing for converting rotary motion of said input shaft into vertical movement of said load engaging pad.
Claim 6
Dependent Claim
40 words
A material handling vehicle as claimed in claim 4, including four of said auxiliary load support members arranged in a generally rectangular pattern about said shuttle assembly, said four auxiliary load support members being driven by a common power source.
Claim 7
Dependent Claim
30 words
A material handling vehicle as claimed in claim 5, in which said common power source includes a chain and sprocket drive system driving interconnected pairs of said load support members.
Claim 8
Dependent Claim
24 words
A material handling vehicle as claimed in claim 1, in which said shuttle assembly comprises a shuttle table extendible transversely to said frame assembly.
Claim 9
Dependent Claim
77 words
A material handling vehicle as claimed in claim 1, in which said shuttle assembly comprises a first bearing plate rigidly mounted on said carriage, a second bearing plate overlying said first bearing plate, said first bearing plate including an upwardly extending annular portion, and said second bearing plate including a downwardly extending annular portion disposed in overlapping relation to said upwardly extending annular portion; and anti-friction bearing means disposed between adjacent surfaces of said overlapping annular portions.
Claim 10
Dependent Claim
29 words
A material handling vehicle as claimed in claim 8, in which said bearing means comprises a plurality of ball bearings distributed about complementary grooves formed in said adjacent surfaces.
Claim 11
Dependent Claim
67 words
A material handling vehicle as claimed in claim 8, including drive means for rotating said second bearing plate relative to the first, said drive means comprising a motor mounted on said carriage, a sprocket wheel on the output shaft of said motor, sprocket means formed on said second bearing plate in vertical alignment with said sprocket wheel, and chain means interconnecting said sprocket wheel and sprocket means.
Claim 12
Dependent Claim
51 words
A material handling vehicle as claimed in claim 1, including means mounting said shuttle assembly for vertical movement relative to said carriage, said mounting means comprising load engaging means, and means for retracting said load engaging means to transfer a load from said shuttle assembly to said auxiliary load supporting means.
Claim 13
Dependent Claim
27 words
A material handling vehicle as claimed in claim 11, in which said auxiliary load supporting means comprises a plurality of load support members surrounding said shuttle assembly.
Claim 14
Dependent Claim
69 words
A material handling vehicle as claimed in claim 11, in which said means for mounting said shuttle assembly for vertical movement comprises a housing, a load engaging pad mounted for vertical movement relative to said housing, an input shaft extending from said housing, means for rotating said shaft, and means within said housing for converting rotary motion of said input shaft into vertical movement of said load engaging pad.
Claim 15
Dependent Claim
27 words
A material handling vehicle as claimed in claim 11, including four of said auxiliary load support members arranged in a generally rectangular pattern around said shuttle assembly.
References Cited (Backward Citations)
US2691448A
Cited
US3416685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |