Patent US3785696A successfully refreshed from Google Patents.
US3785696A
Expired / Lapsed
US
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Rollover protective systems for construction vehicles
Assignee: PORTLAND WIRE AND IRON WORKS
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Filing: 1971-11-19
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Granted: 1974-01-15
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Expires: 1991-11-19
Abstract
Abstract Protection against injury to an operator of a construction vehicle in the event of rollover is provided by a system which may be adapted to many different types of construction vehicles, yet which will withstand the static tests accepted as the industry standard for simulating rollover. The system includes an integral superstructure including upright corner column members joined at their upper ends by longitudinal and transverse horizontal members. At each upper corner of the superstructure there is a special gusset member interconnecting the three coincident superstructure members. The gusset members effect a smooth transition of stress applied to one member to the other members of the superstructure with minimum deflection. The bases of the superstructure upright columns are anchored by means of vibration mounts to brackets which are attached to the vehicle frame.
Inventors
- 👤 J Moore
- 👤 M Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:06
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/11; F; F16; F16B; F16B2200/00; F16B2200/67; Y; Y10; Y10T; Y10T403/00; Y10T403/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
A rollover protective system for vehicles comprising: at least four generally upright columns spaced at the corners of an operator''s station; a plurality of generally horizontal beams interconnecting the upper ends of said columns to provide a superstructure; gusset means for rigidly interconnecting each column with its associated beams, each gusset means comprising an integral corner gusset having three struts extending in generally perpendicular relation, each strut including members welded to an associated beam or column, and rigid median plate means interconnecting all of said struts to provide a smooth transition of applied stress from said beams to said columns; and mounting means pivotally interconnecting the lower end of each column to the frame of said vehicle when said structure is in assembled relation with said vehicle.
Claim 2
Dependent Claim
127 words
A rollover protective system for vehicles comprising: at least four generally upright columns spaced at the corners of an operator''s station; a plurality of generally horizontal beams interconnecting the upper ends of said columns to provide a superstructure; gusset means for rigidly interconnecting each column with its associated beams, each gusset means comprising an integral corner gusset having three struts extending in generally perpendicular relation, each strut including members welded to an associated beam or column, and rigid median plate means interconnecting all of said struts to provide a smooth transition of applied stress from said beams to said columns; and mounting means pivotally interconnecting the lower end of each column to the frame of said vehicle when said structure is in assembled relation with said vehicle.
Claim 3
Dependent Claim
41 words
The structure of claim 1 wherein said members of each strut comprise first and second tabs extending in generally perpendicular planes and adapted to be welded to adjacent sides of an associated beam or column having a generally rectilinear cross section.
Claim 4
Dependent Claim
42 words
The structure of claim 2 wherein said rigid median plate means of each strut comprises a diagonal brace plate extending between each pair of struts, and a generally triangular median plate connected to the inner edge of each of said brace plates.
Claim 5
Dependent Claim
44 words
The structure of claim 2 wherein each median plate means of said struts comprises diagonal brace plate means extending between at least two pairs of said struts and a smoothly curved median plate connected to the inner edge of each of said brace plates.
Claim 6
Dependent Claim
48 words
The structure of claim 1 wherein at least one of said columns is shorter than the others and inclined relative to a vertical line extending perpendicular to its associated beams to thereby draw any load applied to said protective structure to a stronger part of the vehicle frame.
Claim 7
Dependent Claim
28 words
The structure of claim 1 wherein said protective structure is adapted to receive enclosing panels thereby to enclose the operator''s station and provide the operator with environmental protection.
Claim 8
Dependent Claim
129 words
A rollover protective structure for vehicles comprising: a plurality of generally upright columns spaced about an operator''s station; a plurality of generally horizontal beams interconnecting the upper ends of said columns to provide a superstructure; gusset means for rigidly interconnecting each column with a pair of associated beams, each gusset means including an integral corner gusset having three struts extending in generally perpendicular relation, each strut including a pair of tab members welded to an associated beam or column, and rigid median plate means interconnecting all of said struts to provide a smooth transition of applied stress from said beams to said columns; and mounting means interconnecting the lower end of each column to the frame of said vehicle when said structure is in assembled relation with said vehicle.
Claim 9
Dependent Claim
129 words
A rollover protective structure for vehicles comprising: a plurality of generally upright columns spaced about an operator''s station; a plurality of generally horizontal beams interconnecting the upper ends of said columns to provide a superstructure; gusset means for rigidly interconnecting each column with a pair of associated beams, each gusset means including an integral corner gusset having three struts extending in generally perpendicular relation, each strut including a pair of tab members welded to an associated beam or column, and rigid median plate means interconnecting all of said struts to provide a smooth transition of applied stress from said beams to said columns; and mounting means interconnecting the lower end of each column to the frame of said vehicle when said structure is in assembled relation with said vehicle.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |