Patent US4809939A successfully refreshed from Google Patents.
US4809939A
Expired / Lapsed
US
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Longitudinal seat sliding apparatus for automobiles
Assignee: Honda Motor Co Ltd
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Filing: 1987-10-29
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Granted: 1989-03-07
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Expires: 2007-10-29
Abstract
Abstract An apparatus for supporting an automobile seat for longitudinal sliding including a stationary rail for mounting on the automobile, a movable rail for mounting on the seat, and roller members positioned between the rails to support the movable rail on the stationary rail. The roller members have two different diameters which respectively engage the movable rail and stationary rail for causing unequal relative movement between the roller members and each of the rails whereby the rails are of different lengths.
Inventors
- 👤 Toshiro Matsushima
- 👤 Hiroshi Ueda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:10
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/06; B60N2/07; B60N2/0702; B60N2/0705; B60N2/0715; F; F16; F16C; F16C29/00; F16C29/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A longitudinal seat sliding apparatus comprising a stationary rail, roller members supported on and rotatably movable along the stationary rail, and a movable rail supported on the roller members and to which the seat is rigidly secured, each roller member having a first cylindrical portion of a first diameter contacting at least one of the rails and a second cylindrical portion of a second diameter different from the first diameter contacting the other of said rails, the first and second cylindrical portions each having cylindrical slide contact surfaces extending parallel to the rotational axis of the roller member.
Claim 2
Dependent Claim
98 words
A longitudinal seat sliding apparatus comprising a stationary rail, roller members supported on and rotatably movable along the stationary rail, and a movable rail supported on the roller members and to which the seat is rigidly secured, each roller member having a first cylindrical portion of a first diameter contacting at least one of the rails and a second cylindrical portion of a second diameter different from the first diameter contacting the other of said rails, the first and second cylindrical portions each having cylindrical slide contact surfaces extending parallel to the rotational axis of the roller member.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 wherein said first diameter is larger than said second diameter.
Claim 4
Dependent Claim
15 words
The apparatus of claim 1 wherein said second diameter is larger than said first diameter.
Claim 5
Independent Claim
16 words
The apparatus of claims 2 or 3 wherein said two cylindrical portions contact the stationary rail.
Claim 6
Independent Claim
16 words
The apparatus of claims 2 or 3 wherein said two cylindrical portions contact said movable rail.
Claim 7
Dependent Claim
34 words
The apparatus of claim 1 wherein means are provided in interengagement between said movable rail and stationary rail for guiding the relative sliding movement between said rails for preventing lateral or tipping relative movement.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6 wherein said means includes a pair of laterally spaced sliders each engaging both of said rails.
Claim 9
Dependent Claim
22 words
The apparatus of claim 6 wherein said means includes a pair of laterally spaced auxiliary rollers in rolling engagement with said rails.
Claim 10
Dependent Claim
59 words
The apparatus of claim 1 further comprising a pair of laterally spaced apart auxiliary rollers in rolling engagement with said movable rail and said stationary rail for guiding relative movement between said rails, each auxiliary roller including two spaced apart first auxiliary roller surfaces joined to a second auxiliary roller surface of lesser diameter than the first auxiliary rollers.
Claim 11
Dependent Claim
14 words
The apparatus of claim 9 wherein each auxiliary roller has a generally H-shaped cross-section.
Claim 12
Dependent Claim
47 words
The apparatus of claim 1 further comprising a pair of laterally spaced apart auxiliary rollers in rolling engagement with said movable rail and said stationary rail for guiding relative sliding movement between said rails, each auxiliary roller including an auxiliary cylinder joined to an auxiliary roller surface.
Claim 13
Dependent Claim
15 words
The apparatus of claim 11 wherein the auxiliary roller has a generally T-shaped cross section.
References Cited (Backward Citations)
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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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |