US3782350A - Neutral start only mechanism - Google Patents

Neutral start only mechanism Download PDF

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Publication number
US3782350A
US3782350A US00272552A US3782350DA US3782350A US 3782350 A US3782350 A US 3782350A US 00272552 A US00272552 A US 00272552A US 3782350D A US3782350D A US 3782350DA US 3782350 A US3782350 A US 3782350A
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United States
Prior art keywords
movement
starter pinion
clutch
spring
starting gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00272552A
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English (en)
Inventor
E Mcbride
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Outboard Marine Corp
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Outboard Marine Corp
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Filing date
Publication date
Application filed by Outboard Marine Corp filed Critical Outboard Marine Corp
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Publication of US3782350A publication Critical patent/US3782350A/en
Anticipated expiration legal-status Critical
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/10—Safety devices not otherwise provided for

Definitions

  • ABSTRACT Disclosed herein is an engine including a reversing clutch and a starter pinion, together with a clutch actuating member movable relative to a neutral position, means for causing axial movement of the starter pinion toward a starting gear engaging position in response to rotation of a drive member and including a spring and means connecting the spring to the starter pinion for releasably and frictionally restraining rotary movement of the starter pinion and for common movement of the spring with the starter pinion axially of the axis of starter pinion rotary movement, a blocking element pivotally movable relative to a position blocking movement of the spring end therefore of the starter pinion in the direction toward the starting gear engaging position, and means connecting the clutch actuating member to the blocking element for displacing the blocking element to the blocking position when the clutch actuating member is moved from the neutral position.
  • the invention relates to internal combustion engines and to starting mechanisms therefore. More particularly, the invention relates tomarine propulsion devices, such as outboard motors, including an engine starting mechanism and a reversing clutch. Still more particularly, the invention relates to arrangements for preventing engine starting operation when a reversing clutch is not in neutral.
  • the movable blocking member is pivotally mounted and is located, when the clutch is not in neutral, in a position blocking movement of a friction spring which is arranged, with respect to the starter pinion, for common movement with the starter pinion toward the starting gear engaging position and for releasably and frictionally restraining rotary movement of the starter pinion.
  • the clutch is connected to the blocking member by a wire or other semi-flexible push-pull connection between a clutch actuating member and the blocking member.
  • One of the principal objects of the invention is the provision of a marine propulsion device including a blocking member which is movable into a position blocking movement of a starter pinion in the direction toward a starting gear engaging position in response to clutch movement from a neutral condition.
  • Another of the principal objects of the invention is the provision of an engine starting mechanism including a blocking member movable into a position blocking movement of a starter spring so as to thereby block movement of a starter pinion toward the starting gear.
  • FIG. 1 is a side elevational view of an outboard motor embodying various of the features of the invention.
  • FIG. 2 is an enlarged view of a portion of the engine starting mechanism embodied in the outboard motor shown in FIG. 1, with the components shown in the position when the clutch is in neutral.
  • FIG. 3 is a view similar to FIG. 2 with the components shown in the position when the clutch is in forward drive.
  • FIG. 4 is a view similar to FIG. 3 with the components shown in the position when the clutch is in reverse drive.
  • FIG. 5 is a fragmentary view of the mounting of the clutch actuating member embodied in the outboard motor shown in FIG. 1.
  • an outboard motor 11 which includes an engine 23 having a rotatably mounted starting gear 27 which can be part of a flywheel.
  • an engine starting mechanism 29 including a starter pinion 53 mounted on the engine 23 for rotary movement and for movement along the axis of rotary movement relative to a position engaging the starting gear 27.
  • a clutch or reversing transmission 33 which is controlled through a suitable linkage 37 from a clutch actuating member 51 which is mounted for pivotal movement relative to the engine-23 and relative to a central neutral position.
  • Means are provided for causing axial movement of the starter pinion 53 toward the starting gear engaging position in response to rotation of an actuating or drive shaft 59 and including a friction spring 55 and means connecting the friction spring 55 to the starter pinion 53 for common movement of the friction spring 55 with the starter pinion 53 axially of the axis of starter pinion rotary movement and for frictionally restraining rotary movement of the starter pinion 53.
  • the starter pinion 53 is constructed in a manner similar-to the starter pinion disclosed in the Niebur and Peters application Ser. No. 250,041 which is incorporated herein by reference. Still more specifically, as in the Niebur patent application, the starter pinion 53 includes a central bore 57 and is mounted on a drive or actuating shaft 59 which is rotatably supported by the engine 23 which extends through the bore 57, and which can be rotated either by extension of a pull rope, or by a rewind spring, or by other means as shown, for instance, in the US. Pike Pat. No. 2,983,511, issued May 31, 1960.
  • the starter pinion 53 also includes a pinion portion 61, a hub portion 62 including one or more cam slots 64 which extend in inclined relation to the axis of starter pinion rotation and which respectively receive a pin 66 extending fixedly from the actuating shaft 59 so as to cause axial travel of the starter pinion 53 relative to the actuating shaft 59 in response to relative rotation therebetween.
  • the starter pinion 53 includes an annular groove 67 which is engaged by the before mentioned friction spring 55 to frictionally restrain relative rotation therebetween and to frictionally restrain rotation of the starter pinion 53 and also to provide for common axial movement of the friction spring 55 with the starter pinion 53.
  • the friction spring 55 includes an extending portion 69 which projects between two spaced and opposing lugs or projections or guide posts 70 on a bracket 71 which is supported by the engine 23,whereby 23, whereby movement of the friction spring 55 is restrained and so as to thereby also releasably and frictionally restrain starter pinion rotary movement and thereby to also cause axial movement of the starter pinion 53 toward the starter gear engaging position in response to rotation of the actuating shaft in the proper direction.
  • a blocking element 75 movable relative to a blocking position preventing movement of the starter pinion 53 in the direction toward the starting gear engaging position, together with means for displacing the blocking element to the blocking position when the clutch 33 is out of the neutral condition.
  • the blocking element 75 is pivotally mounted on the supporting bracket 71 and includes a U-shaped portion 77 which is formed by opposed and spaced wings 79 and which, when the components are in neutral position as shown in FIG. 2, is located in a centered position to receive and permit travel therein of the outermost part of the extending portion 69 of the friction spring during movement of the friction spring 55 accompanying movement of the starter pinion 53 to the starting gear engaging position.
  • the means for displacing the blocking element to its blocking position comprises a semi-flexible push-pull element or wire 81 which, at one end, is connected to a portion of the blocking element 75 and, at its other end, is connected to a lever 83 having common rotary movement with the clutch actuating member 51.
  • the push-pull element or wire 81 is guided for movement by guides 85 formed on the bracket 71.
  • another guide 87 in the form of an axially bored rubber bushing or grommet mounted on a bracket 89 supported from the engine 23 can be employed.
  • An engine including a rotary starting gear, a clutch movable relative to a neutral position, a starter pinion having therein an annular groove, means mounting said starter pinion on said engine for rotary movement and for movement along the axis of rotary movement relative to a position engaging said starting gear, means for causing axial movement of said starter pinion toward said starting gear engaging position and including a friction spring engaged in said annular groove in said starter pinion so as to have common axial movement with said starter pinion and arranged to permit frictionally restrained relative movement between said spring and said starter pinion, said spring including an extending portion, a bracket supported by said engine and including means engageable with said extending portion for preventing rotation of said spring and for affording movement of said spring in common with said starting pinion in the direction toward the starting gear engaging position, and a blockingelement connected to said clutch and mounted on said bracket for pivotal movement in response to movement of said clutch relative to the neutral position, said blocking element including a portion defining a U-shaped opening located, when said clutch is in neutral position, in
  • said clutch includes a clutch actuating member and further including a push-pull element extending between said blocking element and said clutch actuating member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)
US00272552A 1972-07-17 1972-07-17 Neutral start only mechanism Expired - Lifetime US3782350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27255272A 1972-07-17 1972-07-17

Publications (1)

Publication Number Publication Date
US3782350A true US3782350A (en) 1974-01-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00272552A Expired - Lifetime US3782350A (en) 1972-07-17 1972-07-17 Neutral start only mechanism

Country Status (3)

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US (1) US3782350A (enrdf_load_stackoverflow)
JP (1) JPS4944136A (enrdf_load_stackoverflow)
CA (1) CA1006380A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866591A (en) * 1973-05-31 1975-02-18 Outboard Marine Corp Manual starter and shift interlock mechanism
US3906921A (en) * 1974-08-05 1975-09-23 Toro Co Lawn mower starting interlock
US3942505A (en) * 1974-08-05 1976-03-09 The Toro Company Lawn mower starting interlock
US3971353A (en) * 1975-02-07 1976-07-27 Briggs & Stratton Corporation Bendix-type engine starter with mechanical lookout to prevent undesired starting of engine
US4019490A (en) * 1975-05-09 1977-04-26 Tecumseh Products Company Pull-rope recoil starter
US4064823A (en) * 1976-07-28 1977-12-27 Brunswick Corporation Electric starter interlock for outboard motor devices
US4439163A (en) * 1980-10-01 1984-03-27 Outboard Marine Corporation Outboard motor with interlock mechanism for transmission and for starting mechanism
US4534739A (en) * 1983-12-23 1985-08-13 Brunswick Corp. Recoil starter lock and neutral gear throttle limit for marine drives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63159170A (ja) * 1986-12-24 1988-07-02 Isuzu Motors Ltd 補助ブレ−キ用アンチスキツド装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231637A (en) * 1913-01-15 1917-07-03 Westinghouse Electric & Mfg Co Interlock for starting motors.
US2867132A (en) * 1957-03-05 1959-01-06 Fox River Mfg Company Single lever throttle and shift control
US2938511A (en) * 1955-12-06 1960-05-31 West Bend Aluminum Co Rewind starting device for outboard motors
US3161075A (en) * 1962-09-27 1964-12-15 Inboard Marine Inc Motor control system
US3285361A (en) * 1965-04-15 1966-11-15 Case Co J I Neutral locking and safety starting means for vehicles
US3518979A (en) * 1968-08-23 1970-07-07 Briggs & Stratton Corp Safety device for machine powered by small gas engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925927B1 (enrdf_load_stackoverflow) * 1970-09-25 1974-07-04

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231637A (en) * 1913-01-15 1917-07-03 Westinghouse Electric & Mfg Co Interlock for starting motors.
US2938511A (en) * 1955-12-06 1960-05-31 West Bend Aluminum Co Rewind starting device for outboard motors
US2867132A (en) * 1957-03-05 1959-01-06 Fox River Mfg Company Single lever throttle and shift control
US3161075A (en) * 1962-09-27 1964-12-15 Inboard Marine Inc Motor control system
US3285361A (en) * 1965-04-15 1966-11-15 Case Co J I Neutral locking and safety starting means for vehicles
US3518979A (en) * 1968-08-23 1970-07-07 Briggs & Stratton Corp Safety device for machine powered by small gas engine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866591A (en) * 1973-05-31 1975-02-18 Outboard Marine Corp Manual starter and shift interlock mechanism
US3906921A (en) * 1974-08-05 1975-09-23 Toro Co Lawn mower starting interlock
US3942505A (en) * 1974-08-05 1976-03-09 The Toro Company Lawn mower starting interlock
US3971353A (en) * 1975-02-07 1976-07-27 Briggs & Stratton Corporation Bendix-type engine starter with mechanical lookout to prevent undesired starting of engine
US4019490A (en) * 1975-05-09 1977-04-26 Tecumseh Products Company Pull-rope recoil starter
US4103660A (en) * 1975-05-09 1978-08-01 Tecumseh Products Company Pull-rope recoil starter
US4064823A (en) * 1976-07-28 1977-12-27 Brunswick Corporation Electric starter interlock for outboard motor devices
US4439163A (en) * 1980-10-01 1984-03-27 Outboard Marine Corporation Outboard motor with interlock mechanism for transmission and for starting mechanism
US4534739A (en) * 1983-12-23 1985-08-13 Brunswick Corp. Recoil starter lock and neutral gear throttle limit for marine drives

Also Published As

Publication number Publication date
CA1006380A (en) 1977-03-08
JPS4944136A (enrdf_load_stackoverflow) 1974-04-25

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