US3820834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement of bumper for vehicles
Assignee: Daimler Benz AG
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Filing: 1972-02-01
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Granted: 1974-06-28
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Expires: 1992-02-01
Abstract
Abstract An arrangement of a bumper for vehicles, especially for motor vehicles, which consists of three parts which are supported at the support frame of the vehicle by means of one or several springs; elements are provided between the support frame and the bumper which prestress these springs into an initial position corresponding to the normal position of the bumper.
Inventors
- 👤 K Wilfert
- 👤 B Barenyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:40
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/04; B60R19/14
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
280 words
A bumper arrangement for a vehicle comprising: a plurality of bumper parts positioned adjacent an end of the vehicle for accepting collision forces at said end of the vehicle, joint means connecting said bumper parts to one another such that said bumper parts are movable separately from one another in response to collision forces acting thereon, spring support means connecting said bumper parts to relatively rigid support structure provided on the vehicle, and stressing means interposed between said bumper parts and said support structure for prestressing said spring support means with a normal bumper support position, said spring support means including at least one spring means engaging at both the support structure and spring connection means fixed to one of said bumper parts in such a manner that said spring connection means and said one of said bumper parts may move toward said support structure against spring forces of said spring means in other than a single linear direction, whereby all force components of oblique collision forces at said one of said bumper parts may be resiliently absorbed by said spring means, wherein said bumper parts include a center portion and two end portions pivotally connected one each to opposite ends of said center portion by joint means having substantially vertical pivot axes, wherein said spring support means includes separate spring means for each of said bumper parts which extend from said support structure directly to respective ones of said bumper parts, and wherein the spring means which extend from said end portions are connected at said support structure at positions longitudinally spaced from respective connection points between the support structure and the spring means extending from the center portion.
Claim 2
Dependent Claim
280 words
A bumper arrangement for a vehicle comprising: a plurality of bumper parts positioned adjacent an end of the vehicle for accepting collision forces at said end of the vehicle, joint means connecting said bumper parts to one another such that said bumper parts are movable separately from one another in response to collision forces acting thereon, spring support means connecting said bumper parts to relatively rigid support structure provided on the vehicle, and stressing means interposed between said bumper parts and said support structure for prestressing said spring support means with a normal bumper support position, said spring support means including at least one spring means engaging at both the support structure and spring connection means fixed to one of said bumper parts in such a manner that said spring connection means and said one of said bumper parts may move toward said support structure against spring forces of said spring means in other than a single linear direction, whereby all force components of oblique collision forces at said one of said bumper parts may be resiliently absorbed by said spring means, wherein said bumper parts include a center portion and two end portions pivotally connected one each to opposite ends of said center portion by joint means having substantially vertical pivot axes, wherein said spring support means includes separate spring means for each of said bumper parts which extend from said support structure directly to respective ones of said bumper parts, and wherein the spring means which extend from said end portions are connected at said support structure at positions longitudinally spaced from respective connection points between the support structure and the spring means extending from the center portion.
Claim 3
Dependent Claim
23 words
An arrangement according to claim 1, wherein the center portion extends laterally a distance corresponding approximately to the width of the support structure.
Claim 4
Dependent Claim
25 words
An arrangement according tO claim 2, characterized in that the stressing means are arranged symmetrically on both sides of the vertical vehicle longitudinal center plane.
Claim 5
Dependent Claim
25 words
An arrangement according to claim 3, characterized in that two tensioning elements forming part of the stressing means are provided arranged one above the other.
Claim 6
Dependent Claim
32 words
An arrangement according to claim 4, characterized in that the securing points of the tensioning elements at the support structure have a larger spacing than the securing points thereof at the bumper.
Claim 7
Dependent Claim
38 words
An arrangement according to claim 3, characterized in that the securing points of the stressing means at the support structure are disposed at a larger horizontal distance than the securing points of the stressing means at the bumper.
Claim 8
Dependent Claim
23 words
An arrangement according to claim 2, characterized in that the spring means extending from the center portion includes transversely extending leaf spring means.
Claim 9
Dependent Claim
26 words
An arrangement according to claim 7, characterized in that said leaf spring means includes two leaf spring means provided at a distance one above the other.
Claim 10
Dependent Claim
32 words
An arrangement according to claim 7, characterized in that at least one of deformation means and abutment buffer means is provided between the center portion of the bumper and the support structure.
Claim 11
Dependent Claim
29 words
An arrangement according to claim 9, characterized in that both deformation means and abutment buffer means are provided between the center portion of the bumper and the support structure.
Claim 12
Dependent Claim
21 words
An arrangement according to claim 9, characterized in that said stressing means engage in the joint means of said bumper parts.
Claim 13
Dependent Claim
28 words
An arrangement according to claim 11, characterized in that the bumper parts only consist of the three parts formed by said center portion and the two end portions.
Claim 14
Dependent Claim
25 words
An arrangement according to claim 1, characterized in that the stressing means are arranged symmetrically on both sides of the vertical vehicle longitudinal center plane.
Claim 15
Dependent Claim
25 words
An arrangement according to claim 1, characterized in that two tensioning elements forming part of the stressing means are provided arranged one above the other.
Claim 16
Dependent Claim
33 words
An arrangement according to claim 14, characterized in that the securing points of the tensioning elements at the support structure have a larger spacing than the securing points thereof at the bumper parts.
Claim 17
Dependent Claim
39 words
An arrangement according to claim 1, characterized in that the securing points of the stressing means at the support structure are disposed at a larger horizontal distance than the securing points of the stressing means at the bumper parts.
Claim 18
Dependent Claim
23 words
An arrangement according to claim 1, characterized in that the spring means extending from the center portion includes transversely extending leaf spring means.
Claim 19
Dependent Claim
26 words
An arrangement according to claim 17, characterized in that said leaf spring means includes two leaf spring means provided at a distance one above the other.
Claim 20
Dependent Claim
32 words
An arrangement according to claim 1, characterized in that at least one of deformation means and abutment buffer means is provided between the center portion of the bumper and the support structure.
Claim 21
Dependent Claim
29 words
An arrangement according to claim 19, characterized in that both deformation means and abutment buffer means are provided between the center portion of the bumper and the support structure.
Claim 22
Dependent Claim
21 words
An arrangement according to claim 1, characterized in that said stressing means engage in the joint means of said bumper parts.
Claim 23
Dependent Claim
27 words
An arrangement according to claim 1, characterized in that the bumper parts only consist of three parts formed by said center portion and the two end portions.
Claim 24
Dependent Claim
38 words
An arrangement according to claim 1, wherein said stressing means includes separate stressing members for each of said spring means, each of said stressing members extending from said support structure directly to respective ones of said bumper portions.
Claim 25
Dependent Claim
23 words
An arrangement according to claim 23, wherein the center portion extends laterally a distance corresponding approximately to tHe width of the support structure.
Claim 26
Dependent Claim
77 words
An arrangement according to claim 1, wherein said center portion is a relatively rigid member, wherein said joint means are located at respective lateral outer ends of said center portion, wherein said spring means for said center portion include two conical springs spaced laterally from one another and engaging respective lateral outer end portions of said center portion, and wherein said stressing means includes two bolt means engageable one each with respective ones of said conical springs.
Claim 27
Dependent Claim
47 words
An arrangement according to claim 25, wherein said stressing members for each end portion include shock absorber means pivotally mounted at said support structure and at said end portions, the pivotal connection of said shock absorber means at said end portions being spaced from said joint means.
Claim 28
Dependent Claim
48 words
An arrangement according to claim 23, wherein said stressing members for each said end portion include shock absorber means pivotally mounted at said support structure and at said end portions, the pivotal connection of said shock absorber means at said end portions being spaced from said joint means.
Claim 29
Dependent Claim
34 words
An arrangement according to claim 27, wherein said stressing members for said center portion includes tension members interconnecting the joint means with the pivotal connection of the shock absorber means at the support structure.
Claim 30
Dependent Claim
59 words
An arrangement according to claim 1, wherein said spring means for said center portion is a leaf spring which has opposite free ends attached to said center portion, wherein said stressing members for said center portion include tension members attached to said center portion and said leaf spring at positions spaced from the free ends of said leaf spring.
Claim 31
Dependent Claim
33 words
An arrangement according to claim 29, wherein said spring means for said end portions include curved spring members pivotally attached to respective outermost ends of said end portions and to said support structure.
Claim 32
Dependent Claim
89 words
An arrangement according to claim 1, wherein each of said bumper parts is a rigid member, wherein said stressing means for each of said end portion includes a shock absorber pivotally attached to both said end portion and said support structure, and wherein said stressing means for said center portion includes a pair of shock absorbers pivotally connected one each at respective opposite ends of said center portion and at said support structure at respective pivotal connections for the shock absorbers at the end portions and said support structure.
Claim 33
Dependent Claim
64 words
An arrangement according to claim 29, wherein said leaf spring is a flat spring having a length in a direction extending between said free ends, a width extending vertically, and a thickness extending horizontally and transverse to said length, said thickness being substantially less than said width such that said flat spring has rigidity in the vertical plane and flexibility in the horizontal plane.
Claim 34
Dependent Claim
64 words
An arrangement according to claim 30, wherein each of said leaf spring and curved spring members are flat springs having a width extending vertically and a thickness extending horizontally and transverse to the length thereof, said thickness being substantially less than said width such that said curved spring members and leaf spring have rigidity in the vertical plane and flexibility in the horizontal plane.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |