Patent US3881760A successfully refreshed from Google Patents.
US3881760A
Expired / Lapsed
US
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Bumper for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1974-02-15
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Granted: 1975-05-06
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Expires: 1994-02-15
Abstract
Abstract A bumper for motor vehicles, especially passenger motor vehicles which is retractable under energy-absorption in case of impact by means of shock absorbers that extend in the vehicle longitudinal direction and are rigidly connected with the vehicle body or the like; the fastening of the bumper takes place thereby at least at one shock absorber under interposition of an approximately bipole-shaped upright flat spring which yields in the vehicle cross direction while the shock absorbers are provided with fastening means within the open area of the shock absorber guide tube, by means of which is realized a support at the vehicle body or the like.
Inventors
- 👤 Hubert Hutai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:30
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
105 words
A bumper for motor vehicles which in case of impact is retractable under energy-absorption by means of shock absorber means extending generally in the vehicle longitudinal direction and fixedly connected with a relatively fixed vehicle part, characterized in that the mounting of the bumper means takes place at least at one shock absorber means having shafts and guide tube means and includes an approximately bipole shaped, substantially upright flat spring means yielding in the vehicle cross direction, and fastening means for the shock absorber means in the open area of the shock absorber guide tube means to provide a support at the fixed vehicle part.
Claim 2
Dependent Claim
105 words
A bumper for motor vehicles which in case of impact is retractable under energy-absorption by means of shock absorber means extending generally in the vehicle longitudinal direction and fixedly connected with a relatively fixed vehicle part, characterized in that the mounting of the bumper means takes place at least at one shock absorber means having shafts and guide tube means and includes an approximately bipole shaped, substantially upright flat spring means yielding in the vehicle cross direction, and fastening means for the shock absorber means in the open area of the shock absorber guide tube means to provide a support at the fixed vehicle part.
Claim 3
Dependent Claim
35 words
A bumper according to claim 1, characterized in that the fastening means is constructed as a flange means formed out of the shock absorber guide tube means which is connected with the fixed vehicle part.
Claim 4
Dependent Claim
47 words
A bumper according to claim 2, characterized in that the fixed vehicle part is a vehicle bearer and in that the shock absorber means is inserted into an aperture means of the bearer means and is connected with the bearer means by way of the flange means.
Claim 5
Dependent Claim
76 words
A bumper according to claim 3, characterized in that the substantially upright flat spring means includes a first and second pair of leg portions and in that the bumper means includes a top and bottom side, the first pair of leg portions are held in abutment at the forward end of the shock absorber shaft means and the second pair of leg portions are detachably connected with the top and bottom side of the bumper means.
Claim 6
Dependent Claim
33 words
A bumper according to claim 4, characterized in that the abutment of the first pair of leg portions at the forward end of the shock absorber shaft means takes place by threaded connections.
Claim 7
Dependent Claim
39 words
A bumper according to claim 4, characterized in that the flat spring means consists of a spring band whose superimposed starting and end area is fixed simultaneously with the fastening of the flat spring means at the bumper means.
Claim 8
Dependent Claim
18 words
A bumper aCcording to claim 6, characterized in that the bumper is provided with an elastic bumper strip.
Claim 9
Dependent Claim
17 words
A bumper according to claim 7, characterized in that the bumper means is provided with bumper guards.
Claim 10
Dependent Claim
33 words
A bumper according to claim 8, characterized in that the abutment of the first pair of leg portions at the forward end of the shock absorber shaft means takes place by threaded connections.
Claim 11
Dependent Claim
16 words
A bumper according to claim 9, characterized in that the bumper is for passenger motor vehicles.
Claim 12
Dependent Claim
76 words
A bumper according to claim 1, characterized in that the substantially upright flat spring means includes a first and second pair of leg portions and in that the bumper means includes a top and bottom side, the first pair of leg portions are held in abutment at the forward end of the shock absorber shaft means and the second pair of leg portions are detachably connected with the top and bottom side of the bumper means.
Claim 13
Dependent Claim
33 words
A bumper according to claim 11, characterized in that the abutment of the first pair of leg portions at the forward end of the shock absorber shaft means takes place by threaded connections.
Claim 14
Dependent Claim
39 words
A bumper according to claim 1, characterized in that the flat spring means consists of a spring band whose superimposed starting and end area is fixed simultaneously with the fastening of the flat spring means at the bumper means.
Claim 15
Dependent Claim
18 words
A bumper according to claim 1, characterized in that the bumper is provided with an elastic bumper strip.
Claim 16
Dependent Claim
17 words
A bumper according to claim 1, characterized in that the bumper means is provided with bumper guards.
Claim 17
Dependent Claim
18 words
A bumper according to claim 15, characterized in that the bumper is provided with an elastic bumper strip.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |