Patent US3700083A successfully refreshed from Google Patents.
US3700083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchromesh transmission apparatus
Assignee: Honda Motor Co Ltd
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Filing: 1970-12-24
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Granted: 1972-10-24
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Expires: 1990-12-24
Abstract
Abstract A synchromesh transmission comprises a resilient ring interposed between a sleeve mounted for axial slidable movement on a hub on a main shaft and a blocking ring provided on the outside of the sleeve. The resilient ring is arranged so that at the time of displacement of the sleeve, the resilient ring is initially pushed laterally by the sleeve so as to push the blocking ring and then the resilient ring is compressed and deflected radially by the sleeve so as to allow the sleeve to pass thereover and engage a drive gear loosely mounted on the main shaft.
Inventors
- 👤 Noboru Ashikawa
- 👤 Fujiya Maruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:51
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/02; F16D23/04; F16D23/06; F16D2023/0656; F16D2023/0662; F16D23/0612
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
176 words
In a synchromesh transmission having a drive shaft with at least one gear loosely mounted on the shaft, and a sleeve coupled in rotation on the shaft and slidable thereon to an operative position for engaging the gear to couple the gear in rotation with the shaft, an improvement comprising a blocking ring coupled to said drive shaft for rotation therewith, resilient means comprising a resilient ring between said sleeve and blocking ring to press said blocking ring against the gear and couple the same in rotation when the sleeve is initially displaced towards said operative position, said resilient ring being deformed as the sleeve advances further to said operative position to permit said sleeve to advance therepast and engage the now rotating gear, and projections on said sleeve having inclined surfaces facing said blocking ring and positioned to contact said resilient ring and pass thereon as the sleeve is advanced to engage the gear, and projections on said blocking ring spaced therearound and supporting the resilient ring in opposition to said projections on the sleeve.
Claim 2
Dependent Claim
176 words
In a synchromesh transmission having a drive shaft with at least one gear loosely mounted on the shaft, and a sleeve coupled in rotation on the shaft and slidable thereon to an operative position for engaging the gear to couple the gear in rotation with the shaft, an improvement comprising a blocking ring coupled to said drive shaft for rotation therewith, resilient means comprising a resilient ring between said sleeve and blocking ring to press said blocking ring against the gear and couple the same in rotation when the sleeve is initially displaced towards said operative position, said resilient ring being deformed as the sleeve advances further to said operative position to permit said sleeve to advance therepast and engage the now rotating gear, and projections on said sleeve having inclined surfaces facing said blocking ring and positioned to contact said resilient ring and pass thereon as the sleeve is advanced to engage the gear, and projections on said blocking ring spaced therearound and supporting the resilient ring in opposition to said projections on the sleeve.
Claim 3
Dependent Claim
29 words
An improvement as claimed in claim 1 comprising a boss integrally formed on said blocking ring and facing said sleeve, said projections on said ring being on said boss.
Claim 4
Dependent Claim
29 words
An improvement as claimed in claim 2 wherein said sleeve has an escape groove for receiving said resilient ring after passage of said inclined surfaces on the resilient ring.
Claim 5
Dependent Claim
32 words
An improvement as claimed in claim 1 comprising means between said drive shaft and said blocking ring permitting limited angular movement therebetween to enable meshing of the sleeve and the blocking ring.
Claim 6
Dependent Claim
32 words
An improvement as claimed in claim 1 wherein said blocking ring and gear are slidable on respective conical surfaces which are inclined with respect to the direction of displacement of the sleeve.
Claim 7
Dependent Claim
25 words
An improvement as claimed in claim 1 comprising a second blocking ring and gear, said sleeve being between said gears to selectively engage either thereof.
Claim 8
Dependent Claim
174 words
In a synchromesh transmission having a drive shaft with at least one gear loosely mounted on the shaft, and a sleeve coupled in rotation on the shaft and slidable thereon to an operative position for engaging the gear to couple the gear in rotation with the shaft, an improvement comprising a blocking ring coupled to said drive shaft for rotation therewith, resilient means comprising a resilient ring between said sleeve and blocking ring to press said blocking ring against the gear and couple the same in rotation when the sleeve is initially displaced towards said operative position, said resilient ring being deformed as the sleeve advances further to said operative position to permit said sleeve to advance therepast and engage the now rotating gear, and projections on said sleeve having inclined surfaces facing said blocking ring and positioned to contact said resilient ring and pass thereon as the sleeve is advanced to engage the gear, said resilient ring being of deformed circular form and including spaced projecting portions facing said projections on the sleeve.
Claim 9
Dependent Claim
174 words
In a synchromesh transmission having a drive shaft with at least one gear loosely mounted on the shaft, and a sleeve coupled in rotation on the shaft and slidable thereon to an operative position for engaging the gear to couple the gear in rotation with the shaft, an improvement comprising a blocking ring coupled to said drive shaft for rotation therewith, resilient means comprising a resilient ring between said sleeve and blocking ring to press said blocking ring against the gear and couple the same in rotation when the sleeve is initially displaced towards said operative position, said resilient ring being deformed as the sleeve advances further to said operative position to permit said sleeve to advance therepast and engage the now rotating gear, and projections on said sleeve having inclined surfaces facing said blocking ring and positioned to contact said resilient ring and pass thereon as the sleeve is advanced to engage the gear, said resilient ring being of deformed circular form and including spaced projecting portions facing said projections on the sleeve.
Claim 10
Dependent Claim
32 words
An improvement as claimed in claim 7 comprising means between said drive shaft and said blocking ring permitting limited angular movement therebetween to enable meshing of the sleeve and the blocking ring.
Claim 11
Dependent Claim
32 words
An improvement as claimed in claim 7 wherein said blocking ring and gear are slidable on respective conical surfaces which are inclined with respecT to the direction of displacement of the sleeve.
Claim 12
Dependent Claim
25 words
An improvement as claimed in claim 7 comprising a second blocking ring and gear, said sleeve being between said gears to selectively engage either thereof.
References Cited (Backward Citations)
US2328205A
Cited
US3270843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |