GB2180889A - Starter device for internal combustion engines for motor vehicles - Google Patents

Starter device for internal combustion engines for motor vehicles Download PDF

Info

Publication number
GB2180889A
GB2180889A GB08622477A GB8622477A GB2180889A GB 2180889 A GB2180889 A GB 2180889A GB 08622477 A GB08622477 A GB 08622477A GB 8622477 A GB8622477 A GB 8622477A GB 2180889 A GB2180889 A GB 2180889A
Authority
GB
United Kingdom
Prior art keywords
ofthe
pinion
sleeve
articulation pin
retaining
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.)
Granted
Application number
GB08622477A
Other versions
GB8622477D0 (en
GB2180889B (en
Inventor
Giovanni Fazzini
Paolo Cociani
Enrico Bettini
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Magneti Marelli SpA filed Critical Magneti Marelli SpA
Publication of GB8622477D0 publication Critical patent/GB8622477D0/en
Publication of GB2180889A publication Critical patent/GB2180889A/en
Application granted granted Critical
Publication of GB2180889B publication Critical patent/GB2180889B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02N15/067—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 the starter comprising an electro-magnetically actuated lever
    • 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
    • F02N2015/061—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 said axial displacement being limited, e.g. by using a stopper

Abstract

A starter device comprises a support casing 1, a translatable pinion 6 arranged to engage teeth on the flywheel 7 of an internal combustion engine, an operating electromagnet 3, a flexible transmission lever 8 having its ends coupled to the armature 3a of the electromagnet 3 and to a movable member 5 for driving the pinion 6 in translation, the lever 8 extending through a slot 9a in an articulation pin 9 rotatably supported within the casing 1 and an electric motor 2 for rotating the pinion 6. To keep the transmission lever 8 in position, the articulation pin 9 has retaining means for preventing the lever from moving away from the member 5 for driving the pinion. <IMAGE>

Description

SPECIFICATION Starter device for internal combustion engines for motor vehicles This invention relates to a starterdevicefor an in ternal combustion engine for a motorvehicle.
In particular, the invention has for its subject a starter device of the type comprising a support casing, a translatable pinion arranged to engage a set ofteeth on the flywheel of an internal combustion engine, an operating electromagnet, a flexible transmission lever having its ends coupled to the armature ofthe electromagnet and to a movable memberfor driving the translation ofthe pinion, respectively, the lever extending through a slot in an articulation pin rotatably supported within the casing, and an electric motorfor rotating the pinion.
An object ofthe present invention is to provide the starter device of the aforesaid type which is able to ensurethatthetransmission lever is kept in its position safely and reliably.
According to the invention this object is achieved in a starter device ofthetypespecified above by virtue ofthefactthatthe articulation pin has retaining meansforpreventingthe leverfrom moving away from the member for driving the translation ofthe pinion.
In one particular embodiment, in which the drive member is essentially in the form of a sleevetranslatable on the shaft of the electric motor and in which the transmission lever comprises two substantially Y-shaped metal blades with a forked end forming two arms for engaging and causing the translation of the sleevewhen the electromagnet is energised,the retaining means according to the invention include two stop members carried bythe articulation pin adjacent the end sides or edges ofthe slot on its part facing the sleeve; the distance between the stop members being such that they can interfere with the outer side edges ofthe forked portion ofthe transmission lever to prevent its movement away from the sleeve.
The retaining means include, as will be apparent below, an annular retaining and guide membercarried bythe pin infrontoftheslotandtraversed bythe transmission lever; two opposite side portions ofthe annular retaining and guide member constituting the stop members.
The annular retaining and guide member is preferably of squashed rectangular form and is connected to the articulation pin by two integral connecting arms.
Further characteristics of the device according to the invention will become apparent from the detailed description which follows with reference to the accompanying drawings, provided purely by way of non-limiting example, in which: Figure lisa partially sectioned side view of a star- terdeviceforan internal combustion engine, made in accordance with the present invention, Figure 2 is a perspective view taken on the arrow II of Figure 1, showing in detail the double-leaf-spring transmission lever and its articulation pin of the present invention, and Figure 3is an exploded perspective view of part of the device shown in Figure 2.
With reference to Figure 1, a starter device for an internal combustionengineformotorvehiclesinclu des a support casing 1 which houses, in a known arrangement, an electric operating motor 2 and an electromagnet3. In the arrangement illustrated,the shaft 2a of the motor2 and the movable armature 3a of the electromagnet 3 are parallel to each other.
The shaft 2a has screw-threading of long pitch on which the input part 4a of a free-wheel coupling 4 is rotatably and translatably mounted. A sleeve 5 is translatable with the input part4a ofthe coupling 4.
On the opposite side from the motor 2, this coupling is connected to a pinion 6which is axiallytranslatable along a smooth end portion ofthe shaft 2a ofthe electric motor 2. In particular, the pinion 6 istranslatable between a withdrawn rest position, shown in full outline in Figure 1, and an advanced working position, shown in broken outline in this figure. In the latter position, the pinion 6 can engage with the teeth of the flywheel 7 ofthe internal combustion engine.
Aso-calleddouble-leaf-spring lever8actsasa transmission member between the armature 3a of the electromagnet 3 and the sleeve 5 which acts as a drive memberforthetranslation ofthe pinion 6. In known manner, the double-leaf-spring lever 8 inclu des two coupled metal blades of substantially Y- shape with one end forked to form two arms 8a which engage in suitable seats 5a arranged in the sides of the sleeve 5 and its other end Sb engaged in a slot in the end portion of the armature 3a of the electromagnet 3.
The double-leaf-spring lever8extendsthroughthe slot 9a of an articulation pin 9 (Figure 3) rotatable between the two arms of a support 10 fixed to the casing 1 ofthestarterdevice.
An annular retaining and guide member 11 of squashed rectangularform is carried by the articulation pin 9 in front ofthe slot9a on the side facing the sleeve 5. The double lever 8 extends through the guide and retaining member 11 and the two smaller lateral portions 11 a ofthe latter interfere with the outer lateral edges of the forked portion of the double leverto prevent it from moving away from the sleeve 5. The retaining and guide member 11 is joined to the articulation pin 9 by two connecting arms or parts 12.
Preferably, the pin 9, the guide and retaining member 11, and the connecting parts 12 are formed in a single piece, for example of plastics material.
In the assembled condition, the doubletransmission lever8 is securely and reliably held in position; the sleeve 5 stops it on the side ofthe arms 8a, while the guide and retaining member 11 carried by the articulation pin 9 prevents its movement away from the sleeve.
1. Starterdeviceforan internal combustion en gine,particularlyformotorvehicles,comprising a support casing a translatable pinion arranged to engage a set of teeth on the flywheel of an internal combustion engine,
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Starter device for internal combustion engines for motor vehicles This invention relates to a starterdevicefor an in ternal combustion engine for a motorvehicle. In particular, the invention has for its subject a starter device of the type comprising a support casing, a translatable pinion arranged to engage a set ofteeth on the flywheel of an internal combustion engine, an operating electromagnet, a flexible transmission lever having its ends coupled to the armature ofthe electromagnet and to a movable memberfor driving the translation ofthe pinion, respectively, the lever extending through a slot in an articulation pin rotatably supported within the casing, and an electric motorfor rotating the pinion. An object ofthe present invention is to provide the starter device of the aforesaid type which is able to ensurethatthetransmission lever is kept in its position safely and reliably. According to the invention this object is achieved in a starter device ofthetypespecified above by virtue ofthefactthatthe articulation pin has retaining meansforpreventingthe leverfrom moving away from the member for driving the translation ofthe pinion. In one particular embodiment, in which the drive member is essentially in the form of a sleevetranslatable on the shaft of the electric motor and in which the transmission lever comprises two substantially Y-shaped metal blades with a forked end forming two arms for engaging and causing the translation of the sleevewhen the electromagnet is energised,the retaining means according to the invention include two stop members carried bythe articulation pin adjacent the end sides or edges ofthe slot on its part facing the sleeve; the distance between the stop members being such that they can interfere with the outer side edges ofthe forked portion ofthe transmission lever to prevent its movement away from the sleeve. The retaining means include, as will be apparent below, an annular retaining and guide membercarried bythe pin infrontoftheslotandtraversed bythe transmission lever; two opposite side portions ofthe annular retaining and guide member constituting the stop members. The annular retaining and guide member is preferably of squashed rectangular form and is connected to the articulation pin by two integral connecting arms. Further characteristics of the device according to the invention will become apparent from the detailed description which follows with reference to the accompanying drawings, provided purely by way of non-limiting example, in which: Figure lisa partially sectioned side view of a star- terdeviceforan internal combustion engine, made in accordance with the present invention, Figure 2 is a perspective view taken on the arrow II of Figure 1, showing in detail the double-leaf-spring transmission lever and its articulation pin of the present invention, and Figure 3is an exploded perspective view of part of the device shown in Figure 2. With reference to Figure 1, a starter device for an internal combustionengineformotorvehiclesinclu des a support casing 1 which houses, in a known arrangement, an electric operating motor 2 and an electromagnet3. In the arrangement illustrated,the shaft 2a of the motor2 and the movable armature 3a of the electromagnet 3 are parallel to each other. The shaft 2a has screw-threading of long pitch on which the input part 4a of a free-wheel coupling 4 is rotatably and translatably mounted. A sleeve 5 is translatable with the input part4a ofthe coupling 4. On the opposite side from the motor 2, this coupling is connected to a pinion 6which is axiallytranslatable along a smooth end portion ofthe shaft 2a ofthe electric motor 2. In particular, the pinion 6 istranslatable between a withdrawn rest position, shown in full outline in Figure 1, and an advanced working position, shown in broken outline in this figure. In the latter position, the pinion 6 can engage with the teeth of the flywheel 7 ofthe internal combustion engine. Aso-calleddouble-leaf-spring lever8actsasa transmission member between the armature 3a of the electromagnet 3 and the sleeve 5 which acts as a drive memberforthetranslation ofthe pinion 6. In known manner, the double-leaf-spring lever 8 inclu des two coupled metal blades of substantially Y- shape with one end forked to form two arms 8a which engage in suitable seats 5a arranged in the sides of the sleeve 5 and its other end Sb engaged in a slot in the end portion of the armature 3a of the electromagnet 3. The double-leaf-spring lever8extendsthroughthe slot 9a of an articulation pin 9 (Figure 3) rotatable between the two arms of a support 10 fixed to the casing 1 ofthestarterdevice. An annular retaining and guide member 11 of squashed rectangularform is carried by the articulation pin 9 in front ofthe slot9a on the side facing the sleeve 5. The double lever 8 extends through the guide and retaining member 11 and the two smaller lateral portions 11 a ofthe latter interfere with the outer lateral edges of the forked portion of the double leverto prevent it from moving away from the sleeve 5. The retaining and guide member 11 is joined to the articulation pin 9 by two connecting arms or parts 12. Preferably, the pin 9, the guide and retaining member 11, and the connecting parts 12 are formed in a single piece, for example of plastics material. In the assembled condition, the doubletransmission lever8 is securely and reliably held in position; the sleeve 5 stops it on the side ofthe arms 8a, while the guide and retaining member 11 carried by the articulation pin 9 prevents its movement away from the sleeve. CLAIMS
1. Starterdeviceforan internal combustion en gine,particularlyformotorvehicles,comprising a support casing a translatable pinion arranged to engage a set of teeth on the flywheel of an internal combustion engine, an operating electromagnet, a flexible transmission lever having its ends coupled to the armature ofthe electromagnet and to a movablememberfordrivingthetranslation ofthe pinion, respectively, the lever extending through a slot in an articulation pin rotatably supported within the casing, and an electric motorfor rotating the pinion, characterised in thatthe articulation pin has retaining means for preventing the movement ofthe lever away from the member for driving the translation of the pinion.
2. Device according to Claim 1, in which the drive member is substantially in the form of a sl eeve trans- latable on the shaft of the electric motor and in which the transmission lever comprises two substantially Y-shaped blades each with a forked end forming two arms for engaging and causing the translation ofthe sleeve when the electromagnet is energised, characterised inthatthe retaining meanscomprisetwo stop members carried by the articulation pin adja cent the end sides or edges of the slot on itssidefac- ing the sleeve, the distance between the stop mem bersbeingsuchthattheycan interfere with the outer side edges ofthe forked portion of the transmission lever to prevent its movement away from the sleeve.
3. Device according to Claim 2, characterised in that the retaining means include an annular retaining and guide member carried bythe pin in front ofthe slot and traversed by the lever, two opposite side portions ofthe annular retaining and guide member constituting the stop members.
4. Device according to Claim 3, characterised in thatthe annular retaining and guide member is of squashed rectangularshape and is connected to the articulation pin by two integral connecting arms or parts.
5. Starter device for internal combustion engines, substantially as hereinbefore described and illustrated in the accompanying drawings.
GB08622477A 1985-09-20 1986-09-18 Starter device for internal combustion engines for motor vehicles Expired GB2180889B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5382885U IT206820Z2 (en) 1985-09-20 1985-09-20 STARTER DEVICE FOR INTERNAL COMBUSTION ENGINES FOR MOTOR VEHICLES

Publications (3)

Publication Number Publication Date
GB8622477D0 GB8622477D0 (en) 1986-10-22
GB2180889A true GB2180889A (en) 1987-04-08
GB2180889B GB2180889B (en) 1988-11-16

Family

ID=11285432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08622477A Expired GB2180889B (en) 1985-09-20 1986-09-18 Starter device for internal combustion engines for motor vehicles

Country Status (8)

Country Link
DE (1) DE3631939C2 (en)
FR (1) FR2587760B1 (en)
GB (1) GB2180889B (en)
HU (1) HU194971B (en)
IN (1) IN168583B (en)
IT (1) IT206820Z2 (en)
RU (1) RU1789035C (en)
TR (1) TR23762A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520957A1 (en) * 1991-06-25 1992-12-30 INDUSTRIE MAGNETI MARELLI S.p.A. A starter for an internal combustion engine for motor vehicles
EP1116880A2 (en) * 2000-01-17 2001-07-18 Denso Corporation Starter having resilient shift lever for driving pinion gear
FR2827342A1 (en) * 2001-07-10 2003-01-17 Valeo Equip Electr Moteur Motor vehicle starter has movable hub to carry fork to control engagement of starter clutch drive with ring gear
FR2827341A1 (en) * 2001-07-10 2003-01-17 Valeo Equip Electr Moteur Automobile starter motor, spigot once meshed with engine crown wheel is stopped from rotating, by a friction, cooperating shape or toothed blocking system
FR2864585A1 (en) 2003-12-29 2005-07-01 Valeo Equip Electr Moteur Motor vehicle starter, has elastically deformable lever with upper end connected in axial translation with movable core, and splines with acute angle of inclination with respect to axis comprised between specific angles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477135A (en) * 1973-10-09 1977-06-22 Lucas Electrical Ltd Starter motors
GB1505620A (en) * 1975-10-29 1978-03-30 Bosch Gmbh Robert Starting mechanisms for internal combustion engines
GB1558630A (en) * 1975-11-07 1980-01-09 Paris & Du Rhone Electric starters for engines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1983830U (en) * 1964-04-03 1968-04-18 Bosch Gmbh Robert ELECTRIC TURNING MOTOR FOR COMBUSTION MACHINERY.
US3788151A (en) * 1972-10-06 1974-01-29 Chrysler Corp Shock absorbing starter clutch mechanism
GB1519950A (en) * 1974-10-16 1978-08-02 Lucas Electrical Co Ltd Starter motor
GB1547766A (en) * 1975-08-21 1979-06-27 Lucas Industries Ltd Starter motors
FR2356303A2 (en) * 1975-11-07 1978-01-20 Paris & Du Rhone Motor vehicle starter motor - has sprung U=shaped lever to throw pinion forward under action of solenoid
GB1533978A (en) * 1976-01-16 1978-11-29 Lucas Electrical Co Ltd Starter motor for an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477135A (en) * 1973-10-09 1977-06-22 Lucas Electrical Ltd Starter motors
GB1505620A (en) * 1975-10-29 1978-03-30 Bosch Gmbh Robert Starting mechanisms for internal combustion engines
GB1558630A (en) * 1975-11-07 1980-01-09 Paris & Du Rhone Electric starters for engines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520957A1 (en) * 1991-06-25 1992-12-30 INDUSTRIE MAGNETI MARELLI S.p.A. A starter for an internal combustion engine for motor vehicles
US5222401A (en) * 1991-06-25 1993-06-29 Industrie Magneti Marelli Spa Starter for an internal combustion engine for motor vehicles
EP1116880A2 (en) * 2000-01-17 2001-07-18 Denso Corporation Starter having resilient shift lever for driving pinion gear
EP1116880A3 (en) * 2000-01-17 2003-04-23 Denso Corporation Starter having resilient shift lever for driving pinion gear
US6658949B2 (en) 2000-01-17 2003-12-09 Denso Corporation Starter having resilient shift lever for driving pinion gear
US6959619B2 (en) 2000-01-17 2005-11-01 Denso Corporation Starter having resilient shift lever for driving pinion gear
FR2827342A1 (en) * 2001-07-10 2003-01-17 Valeo Equip Electr Moteur Motor vehicle starter has movable hub to carry fork to control engagement of starter clutch drive with ring gear
FR2827341A1 (en) * 2001-07-10 2003-01-17 Valeo Equip Electr Moteur Automobile starter motor, spigot once meshed with engine crown wheel is stopped from rotating, by a friction, cooperating shape or toothed blocking system
WO2003006824A1 (en) * 2001-07-10 2003-01-23 Valeo Equipements Electriques Moteur Starter for a motor vehicle
FR2864585A1 (en) 2003-12-29 2005-07-01 Valeo Equip Electr Moteur Motor vehicle starter, has elastically deformable lever with upper end connected in axial translation with movable core, and splines with acute angle of inclination with respect to axis comprised between specific angles

Also Published As

Publication number Publication date
GB8622477D0 (en) 1986-10-22
FR2587760B1 (en) 1990-07-06
DE3631939C2 (en) 1995-09-14
RU1789035C (en) 1993-01-15
DE3631939A1 (en) 1987-03-26
IT206820Z2 (en) 1987-10-01
IN168583B (en) 1991-05-04
IT8553828V0 (en) 1985-09-20
FR2587760A1 (en) 1987-03-27
HUT42153A (en) 1987-06-29
TR23762A (en) 1990-09-12
HU194971B (en) 1988-03-28
GB2180889B (en) 1988-11-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040918