US3656355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starter having means for holding same in a cranking position
Assignee: Mitsubishi Electric Corp
•
Filing: 1970-03-26
•
Granted: 1972-04-18
•
Expires: 1990-03-26
Abstract
Abstract An engine starting device is provided with holding means for holding a rotationally driven pinion in engagement with a ring gear of the engine to be started. The holding means comprises a translatable and rotatable barrel member having connected thereto the pinion and a pawl. A detent is slidably mounted in a radial extending hole provided in a fixed support member and cooperates with the pawl to maintain the pinion in mesh with the engine ring gear until the engine is started.
Inventors
- 👤 Tsuyoshi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:51
CPC Classifications
F; F02; F02N; F02N15/00; F02N15/02; F02N15/04; F02N15/06; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/133
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
270 words
A starter device engageable with a ring gear of an internal combustion engine comprising, in combination: a rotatable driving shaft; a movable barrel member including an inner peripheral surface having disposed thereon a helical spline and an outer peripheral surface, said barrel member being fitted onto said driving shaft for axial movement and subject through said helical spline to a force for axially moving the same; a pinion disposed on said outer peripheral surface of said movable barrel member engageable with said ring gear in response to axial movement of said movable barrel member; a pawl member disposed on said outer peripheral surface of said movable barrel member; supporter means fixedly secured on said driving shaft in axially opposite relationship with respect to said movable barrel member; a detent member disposed in said supporter means for radial movement and upon meshing of said pinion with said ring gear to start the engine, capable of engaging with said pawl member to prevent said pinion from disengaging from said ring gear until the engine is started; and wherein said pawl member has an inclined surface on that side thereof near to said supporter means and an engaging surface on the other side thereof, said inclined surface being operative when said pinion is moved into mesh with said ring gear to lead said detent member to its position where the latter poses said engaging surface, said engaging surface being operative when said pinion tends to move out of engagement with said ring gear during the operation of starting the engine to engage said detent member to thereby prevent axial movement of said pinion.
Claim 2
Dependent Claim
270 words
A starter device engageable with a ring gear of an internal combustion engine comprising, in combination: a rotatable driving shaft; a movable barrel member including an inner peripheral surface having disposed thereon a helical spline and an outer peripheral surface, said barrel member being fitted onto said driving shaft for axial movement and subject through said helical spline to a force for axially moving the same; a pinion disposed on said outer peripheral surface of said movable barrel member engageable with said ring gear in response to axial movement of said movable barrel member; a pawl member disposed on said outer peripheral surface of said movable barrel member; supporter means fixedly secured on said driving shaft in axially opposite relationship with respect to said movable barrel member; a detent member disposed in said supporter means for radial movement and upon meshing of said pinion with said ring gear to start the engine, capable of engaging with said pawl member to prevent said pinion from disengaging from said ring gear until the engine is started; and wherein said pawl member has an inclined surface on that side thereof near to said supporter means and an engaging surface on the other side thereof, said inclined surface being operative when said pinion is moved into mesh with said ring gear to lead said detent member to its position where the latter poses said engaging surface, said engaging surface being operative when said pinion tends to move out of engagement with said ring gear during the operation of starting the engine to engage said detent member to thereby prevent axial movement of said pinion.
Claim 3
Dependent Claim
135 words
A starter device as claimed in claim 1 wherein said movable barrel member has disposed thereon means defining a circumferential groove having a lateral wall on that side thereof near to said supporter means, said pawl member being formed in the form of an annulus on the top of said lateral wall and including said inclined surface on that side opposite to said lateral wall, said lateral wall being operative, when said pinion tends to move out of engagement with said ring gear during the operation of starting the engine, to engage said detent member thereby to prevent said movement of said pinion, said inclined surface being operative, when said pinion is moved into mesh with said ring gear, to lead said detent member to its position where the latter opposes to said lateral wall.
Claim 4
Dependent Claim
49 words
A starter device as claimed in claim 1 comprising a compression spring within said supporter means compressable through the movement of said movable barrel member, and an engaging surface within said supporter means for receiving one end of said compression spring having the other end engaging said movable member.
Claim 5
Dependent Claim
64 words
A starter device as claimed in claim 1 comprising a compression spring within said supporter means compressable through the movement of said movable barrel member, an engaging surface within said supporter means for receiving one end of said compression spring having the other end engaging said movable member, and another engaging surface for determining a maximum magnitude of movement of said movable barrel member.
Claim 6
Dependent Claim
35 words
A starter device as claimed in claim 1 wherein said supporter means include a hollow cylindrical member encircliNg said driving shaft and having radially extending therethrough a hole in which said detent member is disposed.
Claim 7
Dependent Claim
80 words
A starter device as claimed in claim 1 wherein said supporter means include a hollow cylindrical member encircling said driving shaft and having a hole radially extending therethrough said hole having a shoulder formed on the intermediate portion thereof and said detent member disposed therein, and a spring disposed in said hole to bias said detent member toward said driving shaft, said shoulder being operative to maintain said detent member at its predetermined position against the action of said spring.
Claim 8
Dependent Claim
107 words
A starter device as claimed in claim 1 wherein said supporter means include a hollow cylindrical member encircling said driving shaft and having a hole radially extending therethrough, said hole having a shoulder formed on the intermediate portion thereof and said detent member disposed therein, a cover member disposed on the outer peripheral surface of said hollow cylindrical member to close one end of said hole, and a spring disposed in said hole between said cover and detent members to bias said detent member toward said driving shaft, said shoulder being operative to maintain said detent member at its predetermined position against the action of said spring.
Claim 9
Dependent Claim
213 words
In a starting device for imparting starting rotation to a driven member; a rotatable input shaft rotationally driven in a given direction during use of the starting device; a driving member having means thereon releasably engageable with the driven member to be rotated; means mounting said driving member on said input shaft for translational movement therealong between an idle position wherein same is out of engagement with the driven member and a cranking position wherein same both releasably engages with the driven member and concurrently rotates with said input shaft to impart starting rotation to the driven member in response to rotation of said input shaft; and holding means releasably engageable with said driving member when same is in said cranking position for releasably holding said driving member in said cranking position only until the driven member has obtained a predetermined rotational speed comprising a support member connected to said input shaft for rotation therewith, means defining an opening within said support member positioned along and extending transversly to the path of translational movement of said driving member, means defining an annular groove in said driving member and a movable detent member movable mounted within said opening to engage with said annular groove when said driving member is moved into said cranking position.
Claim 10
Dependent Claim
213 words
In a starting device for imparting starting rotation to a driven member; a rotatable input shaft rotationally driven in a given direction during use of the starting device; a driving member having means thereon releasably engageable with the driven member to be rotated; means mounting said driving member on said input shaft for translational movement therealong between an idle position wherein same is out of engagement with the driven member and a cranking position wherein same both releasably engages with the driven member and concurrently rotates with said input shaft to impart starting rotation to the driven member in response to rotation of said input shaft; and holding means releasably engageable with said driving member when same is in said cranking position for releasably holding said driving member in said cranking position only until the driven member has obtained a predetermined rotational speed comprising a support member connected to said input shaft for rotation therewith, means defining an opening within said support member positioned along and extending transversly to the path of translational movement of said driving member, means defining an annular groove in said driving member and a movable detent member movable mounted within said opening to engage with said annular groove when said driving member is moved into said cranking position.
Claim 11
Dependent Claim
85 words
A starter device according to claim 8; including spring means continuously biasing said detent member into said path of travel of said driving member, and wherein said driving member has an inclined leading surface portion adjacent said annular groove engageable with said detent member during movement to said cranking position to move said detent member out of said path of travel to thereby allow said driving member to move into said cranking position whereupon said spring means biases said detent member into said annular groove.
References Cited (Backward Citations)
US1210028A
Cited
US3247727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |