US3714841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic device for transmitting rotary movement
Assignee: Automobiles Citroen SA
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Filing: 1971-04-01
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Granted: 1973-02-06
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Expires: 1991-04-01
Abstract
Abstract This invention relates to a telescopic device for transmitting rotary movement, utilizable in particular for the steering column of a vehicle, comprising a sleeve, a shaft inside the sleeve and sliding with respect to this latter and a lining made of deformable material disposed between the sleeve and the shaft and fixed to one of these two elements, a sufficient clearance being provided between the zones opposite the sliding members in order to avoid requirement for their adjustment, wherein the clearance is eliminated over a portion of the zones opposite the lining and the element sliding with respect thereto, this ensuring a localized assembly with locking due to a deformation upon assembly of the lining.
Inventors
- 👤 A Grosseau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:56
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
A telescopic device for transmitting rotary movement, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material positioned between said sleeve and said shaft and encompassing the periphery of said shaft, said lining being fixed to one of said shaft and sleeve elements and spaced from the other of said shaft and sleeve elements over a first portion thereof to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, and one of said lining and the other of said shaft and sleeve elements having an enlargement formed therein for cooperation between said lining and said other element at a second portion of said lining whereby said lining and the other of said shaft and sleeve elements are in frictional locking engagement at said second portion of said lining to permit relative movement therebetween upon application of a predetermined force to one of said shaft and sleeve elements.
Claim 2
Dependent Claim
167 words
A telescopic device for transmitting rotary movement, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material positioned between said sleeve and said shaft and encompassing the periphery of said shaft, said lining being fixed to one of said shaft and sleeve elements and spaced from the other of said shaft and sleeve elements over a first portion thereof to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, and one of said lining and the other of said shaft and sleeve elements having an enlargement formed therein for cooperation between said lining and said other element at a second portion of said lining whereby said lining and the other of said shaft and sleeve elements are in frictional locking engagement at said second portion of said lining to permit relative movement therebetween upon application of a predetermined force to one of said shaft and sleeve elements.
Claim 3
Dependent Claim
167 words
A telescopic device for transmitting rotary movement, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material positioned between said sleeve and said shaft and encompassing the periphery of said shaft, said lining being fixed to one of said shaft and sleeve elements and spaced from the other of said shaft and sleeve elements over a first portion thereof to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, and one of said lining and the other of said shaft and sleeve elements having an enlargement formed therein for cooperation between said lining and said other element at a second portion of said lining whereby said lining and the other of said shaft and sleeve elements are in frictional locking engagement at said second portion of said lining to permit relative movement therebetween upon application of a predetermined force to one of said shaft and sleeve elements.
Claim 4
Dependent Claim
167 words
A telescopic device for transmitting rotary movement, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material positioned between said sleeve and said shaft and encompassing the periphery of said shaft, said lining being fixed to one of said shaft and sleeve elements and spaced from the other of said shaft and sleeve elements over a first portion thereof to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, and one of said lining and the other of said shaft and sleeve elements having an enlargement formed therein for cooperation between said lining and said other element at a second portion of said lining whereby said lining and the other of said shaft and sleeve elements are in frictional locking engagement at said second portion of said lining to permit relative movement therebetween upon application of a predetermined force to one of said shaft and sleeve elements.
Claim 5
Dependent Claim
93 words
A telescopic device as defined in claim 1 wherein said other of said shaft and sleeve elements has a predetermined cross-sectional configuration including a plurality of flat surfaces and said lining has a complementary cross-sectional configuration having a complementary flat surfaces spaced from the flat surfaces of said other of said shaft and sleeve elements at the first portion thereof, said lining including, at said second portion thereof, said enlargement which comprises a plurality of inclined facets extending towards and engaging said flat surfaces of said other of said shaft and sleeve elements.
Claim 6
Dependent Claim
20 words
A telescopic device as defined in claim 2 wherein said lining is fixed to said sleeve and receives said shaft.
Claim 7
Dependent Claim
194 words
A telescopic device for transmitting rotary movement, as in the steering column of a motor vehicle, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material mounted in said sleeve and receiving said shaft, said lining having a cross-sectional bore therein which is generally complementary to said shaft, said bore having, at a first portion of said lining, internal dimensions slightly greater than the dimensions of said shaft whereby said lining and shaft are spaced from each other over the first portion of the lining to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, said lining having enlarged facets formed there in at a second portion thereof extending inwardly towards and into engagement with said shaft whereby said lining and shaft are held in frictional locking engagement at said second portion of the lining to permit relative movement therebetween upon application of a predetermined force to one of sAid shaft and sleeve elements and to maintain a relatively constant locking force therebetween irrespective of the relative position of said shaft in said sleeve.
Claim 8
Dependent Claim
194 words
A telescopic device for transmitting rotary movement, as in the steering column of a motor vehicle, comprising, a hollow sleeve, an elongated shaft received within said sleeve for sliding movement with respect thereto, and a lining formed of a deformable elastic material mounted in said sleeve and receiving said shaft, said lining having a cross-sectional bore therein which is generally complementary to said shaft, said bore having, at a first portion of said lining, internal dimensions slightly greater than the dimensions of said shaft whereby said lining and shaft are spaced from each other over the first portion of the lining to facilitate insertion of said shaft into said sleeve and relative sliding movement therebetween, said lining having enlarged facets formed there in at a second portion thereof extending inwardly towards and into engagement with said shaft whereby said lining and shaft are held in frictional locking engagement at said second portion of the lining to permit relative movement therebetween upon application of a predetermined force to one of sAid shaft and sleeve elements and to maintain a relatively constant locking force therebetween irrespective of the relative position of said shaft in said sleeve.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |