Patent US3944244A successfully refreshed from Google Patents.
US3944244A
Expired / Lapsed
US
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Telescopic safety steering column for motor vehicles
Assignee: Daimler Benz AG
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Filing: 1974-11-26
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Granted: 1976-03-16
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Expires: 1994-11-26
Abstract
Abstract A telescopic safety steering column for motor vehicles which includes a steering wheel displaceable from its normal operating position relative to the outer steering column under energy absorption by the steering wheel and an energy-absorbing support of the outer column at a fixed vehicle part; this support being provided by an undulated tubular member which is arranged parallel to the center longitudinal axis of the safety steering column and is stable as regards its position while the fixing of the outer column is provided in proximity to the steering wheel by a guide strap which becomes ineffectual when the body of a vehicle passenger impinges against the steering wheel.
Inventors
- 👤 Wilhelm Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:17
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/02; B62D1/16; B62D1/18; B62D1/19; B62D1/195
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
180 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel, characterized in that the guide means includes a guide strap, and characterized in that a bracket means which accommodates one end of the tubular member projects from the outer column means, the tubular member being pressed against the fixed vehicle part by said bracket means, and in that a cover means partly surrounding the tubular member and stressable in tension is provided which is connected with the fixed vehicle part.
Claim 2
Dependent Claim
180 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel, characterized in that the guide means includes a guide strap, and characterized in that a bracket means which accommodates one end of the tubular member projects from the outer column means, the tubular member being pressed against the fixed vehicle part by said bracket means, and in that a cover means partly surrounding the tubular member and stressable in tension is provided which is connected with the fixed vehicle part.
Claim 3
Dependent Claim
28 words
A telescopic safety steering column according to claim 1, characterized in that the tubular member is pressed under prestress against the fixed vehicle part by said bracket means.
Claim 4
Dependent Claim
46 words
A telescopic safety steering column according to claim 1, characterized in that the cover means is open in the direction toward the outer column means and is constructed as guide slot in which the bracket means is guided safely against canting in case of an inpact.
Claim 5
Dependent Claim
34 words
A telescopic safety steering column according to claim 3, characterized in that the guide means forms a unit together with the bracket means which commences to be displaced only upon reaching a predetermined load.
Claim 6
Dependent Claim
38 words
A telescopic safety steering column according to claim 4, characterized in that the displacement of the steering wheel relative to the outer column means under energy absorption starts upon exhaustion of the deformation capacity of the tubular member.
Claim 7
Dependent Claim
29 words
A telescopic safety steering column according to claim 5, characterized in that the tubular member is being pressed under prestress against the fixed vehicle part by said bracket means.
Claim 8
Dependent Claim
169 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel, characterized in that a bracket means which accommodates one end of the tubular member projects from the outer column means, the tubular member being pressed against the fixed vehicle part by said bracket means, and in that a cover means partly surrounding the tubular member and stressable in tension is provided which is connected with the fixed vehicle part.
Claim 9
Dependent Claim
169 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel, characterized in that a bracket means which accommodates one end of the tubular member projects from the outer column means, the tubular member being pressed against the fixed vehicle part by said bracket means, and in that a cover means partly surrounding the tubular member and stressable in tension is provided which is connected with the fixed vehicle part.
Claim 10
Dependent Claim
28 words
A telescopic safety steering column according to claim 7, characterized in that the tubular member is pressed under prestress against the fixed vehicle part by said bracket means.
Claim 11
Dependent Claim
46 words
A telescopic safety steering column according to claim 7, characterized in that the cover means is open in the direction toward the outer column means and is constructed as guide slot in which the bracket means is guided safely against canting in case of an impact.
Claim 12
Dependent Claim
34 words
A telescopic safety steering column according to claim 7, characterized in that the guide means forms a unit together with the bracket means which commences to be displaced only upon reaching a predetermined load.
Claim 13
Dependent Claim
38 words
A telscopic safety steering column according to claim 10, characterized in that the displacement of the steering wheel relative to the outer column means under energy absorption starts upon exhaustion of the deformation capacity of the tubular member.
Claim 14
Dependent Claim
38 words
A telescopic safety steering column according to claim 11, characterized in that the displacement of the steering wheel relative to the outer column means under energy absorption starts upon exhaustion of the deformation capacity of the tubular member.
Claim 15
Dependent Claim
110 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel.
Claim 16
Dependent Claim
110 words
In a telescopic safety steering column for motor vehicles which includes an outer column means, a steering wheel displaceable relative to said outer column means under energy absorption, and energy-absorbing support means for supporting said outer column means at a fixed vehicle part, the improvement comprising said energy-absorbing support means including an undulated tubular member stably arranged parallel to the center longitudinal axis of said safety steering column, and fixing means for fixing said outer column means to said fixed vehicle part in proximity to said steering wheel, said fixing means including guide means for guiding said tubular member with respect to said axis upon impact against said steering wheel.
Claim 17
Dependent Claim
19 words
A telescopic safety steering column according to claim 13 characterized in that the guide means includes a guide strap.
Claim 18
Dependent Claim
23 words
A telescopic safety steering column according to claim 13, characterized in that said guide means guides said tubular member only upon said impact.
Claim 19
Dependent Claim
51 words
A telescopic safety steering column according to claim 13, characterized in that said guide means includes frangible members for releasing said outer column means from a fixed position with respect to said fixed vehicle part upon said impact such that said tubular member is guided in deformation by said guide means.
Claim 20
Dependent Claim
26 words
A telescopic safety steering column according to claim 13, characterized in that said tubular member is deformed upon said impact in the direction of said impact.
References Cited (Backward Citations)
US2779208A
Cited
GB834760A
Cited
US3505897A
Cited
US3612223A
Cited
US3621732A
Cited
US3600971A
Cited
US3797601A
Cited
DE2227327A1
Cited
US3855876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |