US1964310A - Electric starter for internal combustion engines - Google Patents

Electric starter for internal combustion engines Download PDF

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Publication number
US1964310A
US1964310A US506075A US50607531A US1964310A US 1964310 A US1964310 A US 1964310A US 506075 A US506075 A US 506075A US 50607531 A US50607531 A US 50607531A US 1964310 A US1964310 A US 1964310A
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United States
Prior art keywords
shaft
driven element
internal combustion
spring
combustion engines
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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
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US506075A
Inventor
Bethenod Joseph
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.)
Societe de Paris et du Rhone SA
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Societe de Paris et du Rhone SA
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Publication of US1964310A publication Critical patent/US1964310A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062—Starter drives
    • F02N15/063—Starter drives with resilient shock absorbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters

Definitions

  • the object of the invention is to provide improvements of said mechanism presenting remarkable advantagesas regards the safety, durability, simplicity and economy.
  • the invention relates more specifically to a form in which the elastic means employed consists of a helical spring having serially disposed windings, affording flexible operation, efficient functioning and reduced size of constructionf
  • Figures 1 and 2 of the accompanying drawing disclose diagrammatically the construction of an apparatus for carrying the invention into effect.
  • a shaft 1 of an electric starting motor (not shown) or a shaft of a reducing gear driven therefrom has a pinion2 rotatably and slidably mounted thereon and arranged under the control of a fork (not shown) which extends into a groove 3 formed in a boss on the pinion.
  • a fiat spirally wound flexible strip 6 of a material such as steel, fibre or the like is arranged within a recess formed in the pinion at 4 so as to surround the shaft 1 with which it engages with a relatively slight degree of friction.
  • One end '7 of the strip 6 is fixed to the pinion while the other end rests freely upon the shaft 1.
  • the unit 2, 3, 6 is caused to slide along the shaft 1-, in such manner 45 that the pinion 2 meshes with a toothed crown wheel 5 keyed to the shaft of the engine, the electric starting motor being energized at the same. time.
  • the direction of coiling of the spring 6 is so arranged with respect to the direction of rotation of the shaft 1, that as soon as the pinion 2 meshes with the crown wheel 5, an energetic automatic tightening of the said spring upon the shaft 1 is effected so that the electric motor drives the pinion 2 and crown wheel 5 and the internal combustion engine is started.
  • the section and length of the spring 6 are selected according to circumstances whilst. means such as a brake may be provided to increase, either permanently or temporarily, the friction of the free end of the spring with the shaft 1. Finally, the operative and return movements of 7 the pinion 2 may be brought about by any suitable means other than the fork system described.
  • the strip 6 may be mounted within the casing 4 secured to or integral with the pinion 2 which then contacts directly with the shaft 1.
  • a clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and an elastic means upon said shaft aligned with said driven element and solely enveloping said shaft, which elastic means has one end free and the other end rigidly attached to the driven element so that said elastic means is rotatable in one direction with said driven element upon said shaft, while -in the other direction the elastic means frictionally grips the shaft and causes both said elastic means and the driven element to rotate positively with the shaft, and means for axially sliding said driven element together with said elastic means along the shaft for the purpose of coupling the driven element with a motion transmission system.
  • a spring clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and a helical spring upon said shaft aligned with said driven element and solely enveloping the shaft, which helical spring has one end free and the end adjacent the driven element rigidly attached thereto so that the spring is rotatable in one direction with said driven element upon the shaft, while in the other direction said spring frictionally grips the shaft and causes both the spring and the driven element to rotate positively with said shaft, and means for axially sliding said driven element together with said helical spring along the shaft in order to couple the driven element with a motion transmission system.
  • a spring clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and a flat spiral spring upon said shaft 5 aligned with said driven element and solely enveloping the shaft, which flat spiral spring has one end free and the other end rigidly attached to said driven element so that the spring is rotat able in one direction with said driven element

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Description

June 26, 1934. J. BETHENOD 1,964,310
ELECTRIC STARTER FOR INTERNAL COMBUSTION ENGINES Filed Jan. 2, 1931 fise o/a Bef/ze 120a Patented June 26, 1934 PATENT OFFICE ELECTRIC STARTER FOB. INTERNAL COMBUSTION ENGINES Joseph Bethenod, Paris,
France, assignor to Societe De Paris Et Du Rhone, Lyon, France, a
corporation of France Application January 2, 1931, Serial No. 506,075 In France February 12, 1930 3 Claims.
It has been proposed, in particular for the starting of internal combustion engines, to employ an electric motor operatively connected to the shaft of the engine to be started by a transmission mechanism which ensures that once the starting is effected an automatic disengagement of the said transmission mechanism from the engine shaft is efl'ected. It is known to use in particular in order to produce this effect, transmission mechanism including elastic means which are associated, on the one hand with the shaft of the electric starting motor, and on the other hand, with a driving member arranged concentrically to said shaft.
The object of the invention is to provide improvements of said mechanism presenting remarkable advantagesas regards the safety, durability, simplicity and economy. The invention relates more specifically to a form in which the elastic means employed consists of a helical spring having serially disposed windings, affording flexible operation, efficient functioning and reduced size of constructionf Figures 1 and 2 of the accompanying drawing disclose diagrammatically the construction of an apparatus for carrying the invention into effect.
Refen'ing to the drawing, a shaft 1 of an electric starting motor (not shown) or a shaft of a reducing gear driven therefrom has a pinion2 rotatably and slidably mounted thereon and arranged under the control of a fork (not shown) which extends into a groove 3 formed in a boss on the pinion. A fiat spirally wound flexible strip 6 of a material such as steel, fibre or the like is arranged within a recess formed in the pinion at 4 so as to surround the shaft 1 with which it engages with a relatively slight degree of friction. One end '7 of the strip 6 is fixed to the pinion while the other end rests freely upon the shaft 1.
When it is desired to effect the starting of the internal combustion engine, the unit 2, 3, 6 is caused to slide along the shaft 1-, in such manner 45 that the pinion 2 meshes with a toothed crown wheel 5 keyed to the shaft of the engine, the electric starting motor being energized at the same. time. The direction of coiling of the spring 6 is so arranged with respect to the direction of rotation of the shaft 1, that as soon as the pinion 2 meshes with the crown wheel 5, an energetic automatic tightening of the said spring upon the shaft 1 is effected so that the electric motor drives the pinion 2 and crown wheel 5 and the internal combustion engine is started. As soon as the engine rotates, under its own power, the clamping effect of the spring 6 upon the shaft 1 becomes reduced and finally when the crown wheel 5 commences to drive the pinion 2, the spring 6 forms a free wheel device which avoids any damage to the transmission before the pinion 2 has been disengaged by the manipulation of the fork controlling the said pinion.
The section and length of the spring 6 are selected according to circumstances whilst. means such as a brake may be provided to increase, either permanently or temporarily, the friction of the free end of the spring with the shaft 1. Finally, the operative and return movements of 7 the pinion 2 may be brought about by any suitable means other than the fork system described.
It will be also understood that this variation of the invention comprises various methods of execution within the scope of the invention. For example, the strip 6 may be mounted within the casing 4 secured to or integral with the pinion 2 which then contacts directly with the shaft 1.
I claim:
1. A clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and an elastic means upon said shaft aligned with said driven element and solely enveloping said shaft, which elastic means has one end free and the other end rigidly attached to the driven element so that said elastic means is rotatable in one direction with said driven element upon said shaft, while -in the other direction the elastic means frictionally grips the shaft and causes both said elastic means and the driven element to rotate positively with the shaft, and means for axially sliding said driven element together with said elastic means along the shaft for the purpose of coupling the driven element with a motion transmission system.
2. A spring clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and a helical spring upon said shaft aligned with said driven element and solely enveloping the shaft, which helical spring has one end free and the end adjacent the driven element rigidly attached thereto so that the spring is rotatable in one direction with said driven element upon the shaft, while in the other direction said spring frictionally grips the shaft and causes both the spring and the driven element to rotate positively with said shaft, and means for axially sliding said driven element together with said helical spring along the shaft in order to couple the driven element with a motion transmission system.
3. A spring clutch comprising a smooth and uniform driving shaft, a driven element upon said shaft, and a flat spiral spring upon said shaft 5 aligned with said driven element and solely enveloping the shaft, which flat spiral spring has one end free and the other end rigidly attached to said driven element so that the spring is rotat able in one direction with said driven element
US506075A 1930-02-12 1931-01-02 Electric starter for internal combustion engines Expired - Lifetime US1964310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1964310X 1930-02-12

Publications (1)

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US1964310A true US1964310A (en) 1934-06-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479965A (en) * 1945-08-29 1949-08-23 Ragsdale And Company Spring clutch
US2576337A (en) * 1947-01-25 1951-11-27 Ford Motor Co Overrunning sprag type clutch
US2692589A (en) * 1949-01-05 1954-10-26 Outboard Marine & Mfg Co Dog control for recoil engine starters
US2919500A (en) * 1956-08-21 1960-01-05 Elizabeth A Simpson Reading-training devices
US2928514A (en) * 1957-04-29 1960-03-15 Ite Circuit Breaker Ltd Overrunning spring clutch
US3297121A (en) * 1964-08-03 1967-01-10 Dale Corp Van Clutch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479965A (en) * 1945-08-29 1949-08-23 Ragsdale And Company Spring clutch
US2576337A (en) * 1947-01-25 1951-11-27 Ford Motor Co Overrunning sprag type clutch
US2692589A (en) * 1949-01-05 1954-10-26 Outboard Marine & Mfg Co Dog control for recoil engine starters
US2919500A (en) * 1956-08-21 1960-01-05 Elizabeth A Simpson Reading-training devices
US2928514A (en) * 1957-04-29 1960-03-15 Ite Circuit Breaker Ltd Overrunning spring clutch
US3297121A (en) * 1964-08-03 1967-01-10 Dale Corp Van Clutch

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