US3741346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-proof fork support for fork lift trucks
Assignee: CNH Industrial Baumaschinen GmbH
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Filing: 1971-10-07
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Granted: 1973-06-26
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Expires: 1991-10-07
Abstract
Abstract A telescopic mast with stand mast and drive mast for fork lift trucks, which includes a fork support vertically movable in the drive mast and also includes load pick-up and supporting elements connected to said fork support by means of a supporting plate, which latter is in horizontal direction elastically supported by the base frame of the lift carriage.
Inventors
- 👤 B Herdemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:00
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
A fork lift truck, which includes: a stand mast at the front end of said lift truck, a drive mast telescopically movable in said stand mast, a lift carriage vertically displaceable in said drive mast and comprising supporting plate means and supporting fork means for picking up a load and lifting the same, said lift carriage also including base frame means, and elastic means supported by said base frame means and elastically supporting said supporting plate means for damping against damaging shock in substantially horizontal direction by means of a pin received in a hole through said base frame and said supporting plate which allows only substantially horizontal motion of said support plate.
Claim 2
Dependent Claim
113 words
A fork lift truck, which includes: a stand mast at the front end of said lift truck, a drive mast telescopically movable in said stand mast, a lift carriage vertically displaceable in said drive mast and comprising supporting plate means and supporting fork means for picking up a load and lifting the same, said lift carriage also including base frame means, and elastic means supported by said base frame means and elastically supporting said supporting plate means for damping against damaging shock in substantially horizontal direction by means of a pin received in a hole through said base frame and said supporting plate which allows only substantially horizontal motion of said support plate.
Claim 3
Dependent Claim
115 words
A fork lift truck, which includes: a stand mast at the front end of said lift truck, a drive mast telescopically movable in said stand mast, a lift carriage vertically displaceable in said drive mast and comprising supporting plate means and supporting fork means for picking up a load and lifting the same, said lift carriage also including base frame means, and elastic means supported by said base frame means and elastically supporting said supporting plate means in substantially horizontal direction, said elastic means including dish spring means, and bushing means provided having its ends secured in said supporting plate means and said base frame means while extending through and supporting said dish spring means.
Claim 4
Dependent Claim
115 words
A fork lift truck, which includes: a stand mast at the front end of said lift truck, a drive mast telescopically movable in said stand mast, a lift carriage vertically displaceable in said drive mast and comprising supporting plate means and supporting fork means for picking up a load and lifting the same, said lift carriage also including base frame means, and elastic means supported by said base frame means and elastically supporting said supporting plate means in substantially horizontal direction, said elastic means including dish spring means, and bushing means provided having its ends secured in said supporting plate means and said base frame means while extending through and supporting said dish spring means.
Claim 5
Dependent Claim
46 words
A fork lift truck according to claim 2, which includes abutment means connected to that side of said supporting plate means which faces toward said stand mast for engaging the latter in response to a compression of said dish spring means beyond a predetermined admissible extent.
Claim 6
Dependent Claim
46 words
A fork lift truck according to claim 2, in which said base frame means includes transverse supporting arm means, and in which said supporting plate means comprises sliding means slidably engaging said arm means for slidably supporting said supporting plate means on said base frame means.
References Cited (Backward Citations)
CA738826A
Cited
US3314559A
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 |