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US3767223A Expired / Lapsed US ⏱️ 0.0 years remaining

Vehicle suspension system

Assignee: B-M-B Company Inc
•
Filing: 1971-10-22
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Granted: 1973-10-23
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Expires: 1991-10-22
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Abstract

Abstract Suspension system for a three wheeled vehicle includes interconnecting the front frame and the rear frame with a spring loaded hinge structure. The hinge structure is comprised of a pair of hinge plates, a hinge barrel and an interconnecting hinge pin. The front frame is connected to one of the hinge plates while the rear frame is connected to the other of the hinge plates. At least one cap screw extends through both hinge plates and has a compression spring circumscribing a substantial portion thereof on the hinge plate side that is opposite the screw head or cap. An adjustable nut and a washer combination affixes the compression spring between one of the hinge plates and the screw end so that the strength of the spring may be varied in accordance with the position of the hex lock nut. This construction permits the front and rear frame to articulate about the hinge pin under the spring of the strength of one or more of the compression springs and substantially absorbs much of the shock that may otherwise accompany the vehicle movement over rough irregular terrain. Another embodiment of the invention includes spring loading the wheel forks of a trailer structure by providing a substantially upright stationary plate on the trailer frame and spring loading a movable plate which is attached to the trailer wheel mounting fork. At least one screw extends through both plates with an adjustable compression spring being located on the plate side opposite the screw hex head. In this manner, the road shock is absorbed in the wheel suspension system for the trailer structure.

Inventors

  • 👤 W Bottenberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 17:08
CPC Classifications
B; B62; B62D; B62D61/00; B62D61/06; B62D61/08

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 122 words
A vehicle suspension system, said system comprising a front vehicle frame portion, a rear vehicle frame portion means interconnecting and offset from said vehicle frame portions thereby forming an integral vehicle frame with a wheel base of a preselected length, and means for resiliently biasing said interconnecting means to a preselected position, said resilient biasing means operable to absorb shock normally associated with said vehicle movement in rough terrain, said interconnecting means and said resilient biasing means cooperating to prevent said wheel base from becoming less than said preselected length, said interconnecting means being constructed to permit said frame portions to separate as said interconnecting means is moved against the biasing means thereby facilitating the maintaining of the preselected wheel base length.
Claim 2
Dependent Claim 122 words
A vehicle suspension system, said system comprising a front vehicle frame portion, a rear vehicle frame portion means interconnecting and offset from said vehicle frame portions thereby forming an integral vehicle frame with a wheel base of a preselected length, and means for resiliently biasing said interconnecting means to a preselected position, said resilient biasing means operable to absorb shock normally associated with said vehicle movement in rough terrain, said interconnecting means and said resilient biasing means cooperating to prevent said wheel base from becoming less than said preselected length, said interconnecting means being constructed to permit said frame portions to separate as said interconnecting means is moved against the biasing means thereby facilitating the maintaining of the preselected wheel base length.
Claim 3
Dependent Claim 87 words
The combination as in claim 1 wherein said interconnecting means includes a hinge structure, said hinge structure having a first plate interconnected with said front frame portion, a second plate, said second plate interconnected with said rear frame portion, said resilient biasing means operable to bias said plates to a preselected position, said hinge structure being constructed to pivotally connect said plates together at a preselected edge portion and to permit separation of said plates against the bias of said resilient biasing means at another edge portion.
Claim 4
Dependent Claim 32 words
The combination as in claim 2 wherein said resilient biasing means include at least one compression spring mounted with respect to said plates so that said plates are urged toward each other.
Claim 5
Dependent Claim 68 words
The combination as in claim 3 wherein said resilient biasing means and the mounting of said compression spring includes an aperture in each of said plates, at least one elongated spring mounting member extending through both of said apertures; said compression spring being located on said elongated spring mounting member and in biasing contact with one of said plates to thereby constantly urge said plates toward each other.

References Cited (Backward Citations)

GB283749A Cited
US2620509A Cited
US2939721A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-22 1977-04-23 1977-10-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-22 1981-04-23 1981-10-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-22 1985-04-23 1985-10-23 $7700.00 Window Closed / Lapsed

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