Patent US4767158A successfully refreshed from Google Patents.
US4767158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclining mechanism
Assignee: Mitsui Kinzoku Co Ltd
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Filing: 1987-07-06
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Granted: 1988-08-30
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Expires: 2007-07-06
Abstract
Abstract A reclining mechanism for a seat of an automotive vehicle in which a back bracket is pivoted with a pivot pin to a seat bracket of a seat in an automotive vehicle. An angle of inclination of the back bracket relative to the seat bracket is adjusted and maintained by a sector gear locking pawl engagement mechanism. Raised portions are formed along the peripheral sides of the mounting surface remote from a locking pawl of the back bracket upon which is attached the sector gear in such a way that the raised portions abut against a portion of the circumferential surface of the sector gear and the sector gear and the back bracket are securely joined together with joint pins.
Inventors
- 👤 Seiki Satoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:12
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/235; B60N2/2352; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
In a reclining mechanism of the type in which a back bracket is swingably pivoted with a pivot pin to a seat bracket; a sector gear whose center coincides with the axis of said pivot pin is securely attached to said back bracket; and the angle of inclination of a back rest is adjusted by the engagement between the toothed portion of said sector gear and the toothed portion of a locking pawl; the improvement comprising: raised portions formed along the peripheral sides of the mounting surface remote from said locking pawl of said back bracket upon which is attached said sector gear in such a way that said raised portions abut against a portion of the circumferential surface of said sector gear; means forming a rectangular opening in the surface of the sector gear between its center of rotation and the toothed portion thereof; means forming a projection protruding from the back bracket, said projection engaging with the rectangular opening; and, said sector gear and said back bracket being securely joined together with joint pins.
Claim 2
Dependent Claim
176 words
In a reclining mechanism of the type in which a back bracket is swingably pivoted with a pivot pin to a seat bracket; a sector gear whose center coincides with the axis of said pivot pin is securely attached to said back bracket; and the angle of inclination of a back rest is adjusted by the engagement between the toothed portion of said sector gear and the toothed portion of a locking pawl; the improvement comprising: raised portions formed along the peripheral sides of the mounting surface remote from said locking pawl of said back bracket upon which is attached said sector gear in such a way that said raised portions abut against a portion of the circumferential surface of said sector gear; means forming a rectangular opening in the surface of the sector gear between its center of rotation and the toothed portion thereof; means forming a projection protruding from the back bracket, said projection engaging with the rectangular opening; and, said sector gear and said back bracket being securely joined together with joint pins.
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) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |