Patent US3638748A successfully refreshed from Google Patents.
US3638748A
Expired / Lapsed
US
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Automotive chassis-frame structures
Assignee: Automobiles Peugeot SA
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Filing: 1970-06-15
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Granted: 1972-02-01
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Expires: 1990-06-15
Abstract
Abstract Chassis-frame structure of automotive vehicle, notably of vehicle having a front power unit and transmission mechanism assembly, with driving front wheels connected through thrust links to the chassis frame, characterized in that it comprises a compound chassis consisting of an assembly of three main elements, that is, a front element constituted by a pair of lower parallel longitudinal members upswept at their front ends, and by a pair of upper longitudinal members each rigidly assembled at two junction nodes with one of said lower longitudinal members so as to double same along a portion corresponding to the cradle of the power unit, transmission and front-wheel assembly by means of an upswept curved portion having an outswept forward extension beyond said lower longitudinal members and their ends assembled by means of a curved horizontal cross member, said lower longitudinal members having rear extensions, the second element consisting of an intermediate chassis member in the form of a steel pressing formed in the conventional fashion with pressed reinforcing ribs and constituting the floor of the passengers'' compartment and comprising likewise pressed wells for the feet of the rear seat passengers, and finally a third or rear element consisting of a pair of parallel longitudinal members having a different relative spacing in comparison with said front longitudinal members.
Inventors
- 👤 Michel Tixier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/15; B62D21/152; B60; B60K; B60K5/00; B60G; B60G2206/00; B60G2206/01; B60G2206/016; B60G2206/60; B60G2206/70; B60G2206/72
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
214 words
Chassis-frame structure of automotive vehicle, notably of vehicle having a front power unit and transmission mechanism assembly, with driving front wheels connected through thrust links to the chassis frame, characterized in that it comprises a compound chassis consisting of an assembly of three main elements, that is, a front element constituted by a pair of lower parallel longitudinal members upswept at their front ends, and by a pair of upper longitudinal members each rigidly assembled at two junction nodes with one of said lower longitudinal members so as to double same along a portion corresponding to the cradle of the power unit, transmission and front-wheel assembly by means of an upswept curved portion having an outswept forward extension beyond said lower longitudinal members and their ends assembled by means of a curved horizontal crossmembers, said lower longitudinal members having rear extensions, the second element consisting of an intermediate chassis member in the form of a steel pressing formed in the conventional fashion with pressed reinforcing ribs and constituting the floor of the passenger''s compartment and comprising likewise pressed wells for the feet of the rear seat passengers, and finally a third or rear element consisting of a pair of parallel longitudinal members having a different relative spacing in comparison with said front longitudinal members.
Claim 2
Dependent Claim
214 words
Chassis-frame structure of automotive vehicle, notably of vehicle having a front power unit and transmission mechanism assembly, with driving front wheels connected through thrust links to the chassis frame, characterized in that it comprises a compound chassis consisting of an assembly of three main elements, that is, a front element constituted by a pair of lower parallel longitudinal members upswept at their front ends, and by a pair of upper longitudinal members each rigidly assembled at two junction nodes with one of said lower longitudinal members so as to double same along a portion corresponding to the cradle of the power unit, transmission and front-wheel assembly by means of an upswept curved portion having an outswept forward extension beyond said lower longitudinal members and their ends assembled by means of a curved horizontal crossmembers, said lower longitudinal members having rear extensions, the second element consisting of an intermediate chassis member in the form of a steel pressing formed in the conventional fashion with pressed reinforcing ribs and constituting the floor of the passenger''s compartment and comprising likewise pressed wells for the feet of the rear seat passengers, and finally a third or rear element consisting of a pair of parallel longitudinal members having a different relative spacing in comparison with said front longitudinal members.
Claim 3
Dependent Claim
83 words
Chassis-frame structure according to claim 1, wherein a first front junction node of said upper and lower longitudinal members of said front chassis element interconnects the top of the curved portion of each upper longitudinal member and the front end of the lower longitudinal member, and furthermore said second junction point interconnects the rear end of the upper longitudinal member and a portion of said lower longitudinal member which is located at the rear of the transmission mechanism and extends to the rear.
Claim 4
Dependent Claim
79 words
Chassis-frame structure according to claim 1, wherein the rear ends of the upper longitudinal members and the rear extensions of the lower longitudinal members of the front element of the chassis are rigidly connected to the steel pressing constituting the intermediate chassis element and the floor of the passengers'' compartment, said rear portions of the lower longitudinal members extending under said pressing, their rear ends being rigidly assembled with the front walls of said wells formed in said pressing.
Claim 5
Dependent Claim
53 words
Chassis-frame structure according to claim 1, wherein the front portions of the rear longitudinal members constituting said third or rear element extend under the steel pressing of said intermediate element and the front ends of said rear longitudinal members are rigidly assembled with the rear walls of sad wells formed in said pressing.
Claim 6
Dependent Claim
75 words
Chassis-frame structure according to claim 2, wherein the front junction nodes of the upper and lower front longitudinal members receive on the one hand the main bearing points of the power unit and transmission mechanism assembly, and on the other hand the anchoring points of the thrust links of the driving wheels, the other junction nodes of the front longitudinal members receiving furthermore the secondary bearing points of the power unit and transmission mechanism assembly.
Claim 7
Dependent Claim
53 words
Chassis-frame structure according to claim 1, wherein a bow-shaped crossmember interconnects the pair of upper front longitudinal members behind the power unit and above the transmission mechanism, said crossmember having at its ends integral oblique extensions constituting nearly vertical uprights receiving at their upper ends the bearing points of the front suspension elements.
Claim 8
Dependent Claim
33 words
Chassis-frame structure according to claim 1, wherein a fuel tank having a flat and reinforced top constitutes the floor of the boot and is rigidly fitted between said pair of rear longitudinal members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |