Patent US4608291A successfully refreshed from Google Patents.
Patent US4600352A successfully refreshed from Google Patents.
US4600352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spare tire handling mechanism
Assignee: Bank of America Corp
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Filing: 1984-07-18
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Granted: 1986-07-15
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Expires: 2004-07-18
Abstract
Abstract A spare tire handling mechanism is disclosed which is of the character mounted on a vehicle for displacing a spare tire between a stored position beneath the vehicle chassis and an accessible position therebelow and in which the spare tire engages ground and can be pulled out from beneath the vehicle. The spare tire is supported in the stored position by means of a cable having an end with which the tire is releaseably interengaged, and the tire is adapted to be elevated to and lowered from the stored position by means of a rotatable cable drum. The drum has different diameter portions oriented relative to one another for rotation of the drum in the winding direction to wind the cable on the larger diameter portion when there is no or little load on the cable and to wind the cable on the smaller diameter portion when the cable is loaded to elevate the tire from ground to its stored position.
Inventors
- 👤 Steve D. Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:47
CPC Classifications
B; B62; B62D; B62D43/00; B62D43/02; B62D43/04; B62D43/045; Y; Y10; Y10S; Y10S242/00; Y10S242/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
191 words
In a spare tire handling mechanism of the character mounted on a vehicle for displacing a spare tire between stored and accessible positions relative to the vehicle and comprising rotatable drum means and cable means attached at one end to said drum means and having other end means detachably engagable with a spare tire, whereby said tire is displaceable from said accessible to said stored position in response to rotation of said drum means in one direction and from said stored to said accessible position in response to rotation of said drum means in the direction opposite said one direction, the improvement comprising: said drum means having axially adjacent first and second drum portions onto which said cable means is sequentially wound, first onto the first portion then onto the second portion, in response to rotation of said drum means in said one direction, said first drum portion having a larger diameter than said second drum portion, and the load on said cable means by said spare tire being greater during winding of said cable means on said second portion than during winding of said cable means on said first portion.
Claim 2
Dependent Claim
191 words
In a spare tire handling mechanism of the character mounted on a vehicle for displacing a spare tire between stored and accessible positions relative to the vehicle and comprising rotatable drum means and cable means attached at one end to said drum means and having other end means detachably engagable with a spare tire, whereby said tire is displaceable from said accessible to said stored position in response to rotation of said drum means in one direction and from said stored to said accessible position in response to rotation of said drum means in the direction opposite said one direction, the improvement comprising: said drum means having axially adjacent first and second drum portions onto which said cable means is sequentially wound, first onto the first portion then onto the second portion, in response to rotation of said drum means in said one direction, said first drum portion having a larger diameter than said second drum portion, and the load on said cable means by said spare tire being greater during winding of said cable means on said second portion than during winding of said cable means on said first portion.
Claim 3
Dependent Claim
30 words
A spare tire handling mechanism according to claim 1, wherein each said first and second drum portions receives a plurality of convolutions of said cable means in axially adjacent relationship.
Claim 4
Dependent Claim
26 words
A spare tire handling mechanism according to claim 1, and ramp means for guiding displacement of said cable means between said first and second drum portions.
Claim 5
Dependent Claim
31 words
A spare tire handling mechanism according to claim 1, wherein each said first and second drum portions includes groove means to guide winding and unwinding of said cable means relative thereto.
Claim 6
Dependent Claim
16 words
A spare tire handling mechanism according to claim 4, wherein said groove means are axially juxtaposed.
Claim 7
Dependent Claim
26 words
A spare tire handling mechanism according to claim 4, and ramp means for guiding displacement of said cable means between said first and second drum portions.
Claim 8
Dependent Claim
24 words
A spare tire handling mechanism according to claim 6, wherein said ramp means has a helical curvature between said first and second drum portions.
Claim 9
Dependent Claim
22 words
A spare tire handling mechanism according to claim 7, wherein said groove means are axially juxtaposed and said ramp means is grooved.
Claim 10
Dependent Claim
109 words
A spare tire handling mechanism according to claim 1, wherein said accessible position of said tire includes a first position engaging ground vertically beneath said stored position and a second position engaging ground laterally of said first position, said cable means having a first portion extending from said drum means toward said tire when said tire is in said first position and a second portion between said first portion and said drum means when said tire is in said second position, said second and first cable portions being sequentially wound on said first and second drum portions in response to rotation of said drum means in said one direction.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |