US4592243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction type starter
Assignee: Denso Corp
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Filing: 1984-05-24
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Granted: 1986-06-03
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Expires: 2004-05-24
Abstract
Abstract A reduction type starter, wherein an idle shaft is mounted in a starter housing in parallel with a motor shaft and a pinion drive shaft, and an over running clutch is provided on the idle shaft so that a reduction of rotational speed can be performed at two stages.
Inventors
- 👤 Kazunori Katoh
- 👤 Yasuhiro Nagao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:36
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/04; F02N15/06; F02N15/067; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/132; Y10T74/137
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A reduction type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a pinion drive shaft rotatably and slidably supported by said housing; a pinion attached to one end of said pinion drive shaft; a drive gear operatively coupled to said pinion drive shaft; an idle shaft fixed to said housing and in parallel with said motor shaft and said pinion drive shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear being engaged with said motor gear, said clutch also having an inner ring formed with a second reduction gear being engaged with said drive gear.
Claim 2
Dependent Claim
120 words
A reduction type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a pinion drive shaft rotatably and slidably supported by said housing; a pinion attached to one end of said pinion drive shaft; a drive gear operatively coupled to said pinion drive shaft; an idle shaft fixed to said housing and in parallel with said motor shaft and said pinion drive shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear being engaged with said motor gear, said clutch also having an inner ring formed with a second reduction gear being engaged with said drive gear.
Claim 3
Dependent Claim
21 words
A reduction-type starter as set forth in claim 1, further comprising: a magnet switch coaxially arranged with said pinion drive shaft.
Claim 4
Dependent Claim
21 words
A reduction-type starter as set forth in claim 1, wherein said motor shaft is coaxially arranged with said pinion drive shaft.
Claim 5
Dependent Claim
134 words
A reduction-type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; an idle shaft fixed to said starter housing in parallel with said motor shaft; an over-running rotatably provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch further having an inner ring formed with a second reduction gear at its outer periphery; a spline tube rotatably supported by said starter housing and having a drive gear at its outer periphery, said drive gear being engaged with said second reduction gear; a spline shaft rotatably supported by said spline tube; and a magnet switch coaxially arranged with said spline shaft.
Claim 6
Dependent Claim
134 words
A reduction-type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; an idle shaft fixed to said starter housing in parallel with said motor shaft; an over-running rotatably provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch further having an inner ring formed with a second reduction gear at its outer periphery; a spline tube rotatably supported by said starter housing and having a drive gear at its outer periphery, said drive gear being engaged with said second reduction gear; a spline shaft rotatably supported by said spline tube; and a magnet switch coaxially arranged with said spline shaft.
Claim 7
Dependent Claim
170 words
A reduction-type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a spline tube rotatably and slidably supported by said starter housing; a spline shaft rotatably supported by and operatively coupled to said spline tube, a drive gear formed at one end of said spline shaft; an idle shaft rotatably supported by said starter housing in parallel with said motor shaft and said spline shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch also having a second reduction gear formed at the outer periphery of said idle shaft and engaged with said drive gear, said clutch having a roller and a spring disposed between said outer ring and the outer periphery of said idle shaft so as to transmit the rotational force from said outer ring to said idle shaft.
Claim 8
Dependent Claim
170 words
A reduction-type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a spline tube rotatably and slidably supported by said starter housing; a spline shaft rotatably supported by and operatively coupled to said spline tube, a drive gear formed at one end of said spline shaft; an idle shaft rotatably supported by said starter housing in parallel with said motor shaft and said spline shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch also having a second reduction gear formed at the outer periphery of said idle shaft and engaged with said drive gear, said clutch having a roller and a spring disposed between said outer ring and the outer periphery of said idle shaft so as to transmit the rotational force from said outer ring to said idle shaft.
Claim 9
Dependent Claim
20 words
A reduction-type starter as set forth in claim 5 wherein said motor shaft is coaxially arranged with said spline shaft.
Claim 10
Dependent Claim
138 words
A reduction type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a spline tube rotatably and slidably supported by said starter housing; a spline shaft rotatably supported by and operatively coupled to said spline tube; a drive gear formed at one end of said spline shaft; an idle shaft fixed to said starter housing in parallel with said motor shaft and said spline shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch also having an inner ring formed with a second reduction gear at its outer periphery, said second reduction gear being engaged with said drive gear.
Claim 11
Dependent Claim
138 words
A reduction type starter comprising: a starter housing; a starter motor having a motor shaft; a motor gear formed on said motor shaft; a spline tube rotatably and slidably supported by said starter housing; a spline shaft rotatably supported by and operatively coupled to said spline tube; a drive gear formed at one end of said spline shaft; an idle shaft fixed to said starter housing in parallel with said motor shaft and said spline shaft; and an over-running clutch provided on said idle shaft, said clutch having an outer ring formed with a first reduction gear at its outer periphery, said first reduction gear being engaged with said motor gear, said clutch also having an inner ring formed with a second reduction gear at its outer periphery, said second reduction gear being engaged with said drive gear.
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) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |