WO2006000667A1 - Demarreur equipe d’un lanceur a roue libre par friction - Google Patents
Demarreur equipe d’un lanceur a roue libre par friction Download PDFInfo
- Publication number
- WO2006000667A1 WO2006000667A1 PCT/FR2005/001249 FR2005001249W WO2006000667A1 WO 2006000667 A1 WO2006000667 A1 WO 2006000667A1 FR 2005001249 W FR2005001249 W FR 2005001249W WO 2006000667 A1 WO2006000667 A1 WO 2006000667A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- starter
- spring
- driver
- launcher
- Prior art date
Links
- 239000007858 starting material Substances 0.000 title claims abstract description 52
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 230000037452 priming Effects 0.000 claims description 34
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000002991 molded plastic Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000002788 crimping Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- 230000000284 resting effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- 238000003032 molecular docking Methods 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- F02N15/067—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
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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
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/025—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
Definitions
- the invention relates to a starter for a combustion engine, especially a motor vehicle, having a ring gear with a toothed start ring, comprising an output shaft with teeth, a launcher with a pinion, an electric motor for driving in rotation the output shaft mechanically coupled to the launcher mounted to slide axially on the output shaft between a rear rest position, and a forward engagement position of the launcher gear with the toothed bezel of the steering wheel of the combustion engine, said launcher comprising: a driver controlled by a control means between its rear and front positions, and equipped with drive splines engaged with the complementary teeth of the output shaft, a pinion hitch to the trainer via a mechanical freewheel link shaped according to a friction clutch, having a first friction surface carried by one of the a pinion-drive elements, and a second friction surface integral with the other sprocket-drive elements, and resilient means for biasing the friction surfaces in contact with each other to cause self-locking of the freewheel.
- a starter 10 according to the prior art comprises an electric motor 11 having a yoke 15, a stator 12 and a rotor 13 mounted coaxially, the stator 12 surrounding the rotor 13, which is mounted on a rotating shaft 14.
- the stator 12 is housed inside the yoke 15, which is integral with the support 16 of the starter, intended to be fixed on a fixed part of the motor vehicle.
- the rotor 13 comprises a rotor winding in connection with a manifold 17 secured to the shaft 14 of the electric motor 11.
- the starter 10 also comprises an electromagnetic contactor 18 extending parallel to the electric motor 11 by being implanted radially above it.
- the switch 18 is equipped with an excitation coil B, a movable contact 27 carried by a control rod (not referenced) and terminals 19, 20 of power supply.
- the terminals 19, 20 are shaped to each form a fixed contact inside the insulating cover 21.
- One of the terminals 19 is intended to be connected to the positive terminal of the battery, the other 20 is connected via a cable 22 to the brush holder 17 'associated with the collector 17, here of the frontal type or Radial variant of the axial type.
- the contactor 18 also comprises in a known manner a movable core 23, a fixed core 24, a coil support (not referenced) surrounding a guide sleeve (not referenced) of the movable core 23 and a tank (not referenced) serving for the housing of the coil B.
- This tank is assembled to the cover 21, here by crimping.
- the fixed core 24, through its central opening, serves as a guide to the control rod of the contact 27 subjected to the action of a breaking spring (not referenced) intervening between the cover 21 and the movable contact 27 In FIG.
- the mobile core 23 is attracted by magnetic attraction towards the fixed core 24 to simultaneously cause the displacement, via the control rod, of the movable contact 27 towards the fixed contacts of the contactor 18 and the actuation of a control means 25 of the launcher 26 to control the movement thereof between a rear rest position (FIG. 1) and a forward meshing position with a rotating gear ring gear 300 connected in rotation, possibly elastically, with the wheel of the combustion engine of the motor vehicle.
- the control means 25 consists of a control lever.
- a return spring 42 resting on the tank and on a collar integral with the movable core, is mounted around the movable core 23 to bias it towards the rear rest position.
- a spring 41 said spring teeth against teeth, is housed inside the core 23, and cooperates with the upper end of the control lever 25 connected to the movable core 23 via a rod 43 connected to an axis 44. More precisely, the spring 41 acts between the bottom of its housing belonging to the core 23 and an end shoulder belonging to the rod 43, the other end of which cooperates with the upper end of the lever 25 via the axis 44.
- the front end of the shaft 14, opposite the collector 17, is configured to form a sun gear belonging to an epicyclic gear train constituting a gearbox
- the gear train comprises a gears gear, which is interposed between the output shaft 28 and the aligned shaft 14 of the electric motor 11.
- This gear has a fixed gear ring internally toothed to engage the sun gear (not referenced) of the gear unit 30.
- a bearing (not referenced) intervenes radially between the front end of the shaft 14 and the rear end of the shaft 28 with a blind hole for receiving the bearing.
- the control lever 25, here in the form of a fork, is coupled by its upper end, that is to say by its upper part, in the aforementioned manner to the movable core 23 of the switch 18 via the rod 43 and the spring 41, and has in its intermediate portion a pivot axis 31 for its pivotal mounting in the starter.
- the lower part of the fork-shaped lever 25 is mounted in an annular groove 133 of the driver 33 and has profiled fingers or pads for action on the flanks of the driver's groove.
- the axle 31 here comprises two sections extending from opposite sides of the body of the lever 25, here plastic, being advantageously molded with the lever 25.
- These sections are pivotally mounted for example in a two-part bearing having a first connected portion the support 16 being advantageously molded with it and a second portion formed vis-à-vis forming a shim between the actuator 18, more precisely the tank thereof, and the yoke 15.
- the wedge which carries two perforated axial wings for mounting the sections of the axis 31, the lever being interposed between the two wings, one of which is visible at 131 in FIG.
- the fixed ring gear of the gearbox comprises an extension shaped to provide a function of articulation of the lever.
- the extension consists of two radially protruding legs and shaped for receive the sections of the axis 31.
- a fixed base plate interposed between the support 16 and the cylinder head 15 as described in FR A 2 725 758. This is the base plate which then carries a articulation support for the axis 31.
- the lever is pivotally mounted here by its intermediate portion in the starter. More precisely, this lever is pivotally mounted on a fixed hinge support 131 of the starter in favor of an axis integral with one of the lever elements - fixed hinge support knowing that one can reverse the structures.
- the launcher 26 is slidably mounted on the output shaft 28, and comprises a drive gear 32, a driver 33 actuated by the fork of the pivoting control lever 25, and a free wheel 34 interposed axially between the driver 33 and the gear wheel 32.
- the driver 33 is internally provided with helical splines in complementary engagement with external helical teeth 36 carried by the output shaft 28.
- the launcher 26 is thus animated by a helical movement when it is moved. by the lever 25 in the direction of a fixed stop 35 fixed to the shaft 28 to come into position before meshing, through its pinion 32, in engagement with the ring gear 300 of the combustion engine of the motor vehicle.
- the freewheeling starter 26 is equipped with a friction clutch, here frustoconical, for coupling the pinion 32 to the driver 33.
- a friction clutch is of the type described in document FR-A-2,826,696. (WO 03/002870) of the Applicant. It comprises two concave and convex complementary surfaces, for example frustoconical, cooperating by friction and respectively integral with the pinion 32 and the driver 33 for the transmission of the starting torque.
- FR-A-2 826 696 for more details we refer to this document FR-A-2 826 696, in particular on pages 13 and 14 thereof.
- the clutch is locked in an engaged position when the electric motor 11 of the starter drives the starting ring gear of the internal combustion engine during starting (driving phase), and is released automatically at the end of starting when the ring gear drives.
- the pinion 32 at a speed of rotation greater than that of the driver 33 (freewheel phase).
- the pinion 32 and the driver 33 of the launcher 26 each have a central bore for the passage of the output shaft 28.
- the pinion 32 of the launcher 26 is secured to a coupling piece of the pinion 32 to the coach 33.
- This coupling piece is provided at its outer periphery with a first friction surface 37 concave, here frustoconical.
- the friction surface 37 belongs to the inner periphery of a skirt of the coupling piece secured here to the pinion 26.
- the lining 37 is attached.
- the driver 33 is equipped at its inner periphery with driving spiral splines 38 engaged with the complementary teeth 36 formed at the outer periphery of the output shaft 28.
- the driver 33 is also equipped externally with a groove.
- This lining 39 is based on thermosetting plastic or thermoplastic, advantageously loaded, to obtain the desired coefficient of friction with low wear.
- the lining 39 is anchored in an annular housing of the driver 33, and has at its periphery a second convex friction surface 40 cooperating in a complementary manner and coaxial with the first friction surface 37 to form a frustoconical friction clutch constituting a connection.
- freewheel mechanism here disengageable, between the pinion 32 and the driver 33.
- the friction surfaces are shaped to form a semi-spherical friction clutch.
- a cover (not referenced) crimped on the coupling part operates axially between the gasket 39 and the coupling piece.
- the coupling piece is integral with the driver so that the surface 37 belongs to the driver and the surface 39 to the pinion.
- the pinion 32 bears against the stop 35, and the negative clearance d1 is absorbed following a stroke d2 of compression of the spring 41, said spring against teeth, cooperating with the upper end of the control lever 25.
- the pivoting of the latter about the axis 31 acts on the driver 33 so as to press the second friction surface 40 of the seal 39 against the first friction surface 37.
- the self-locking of the launcher 26 is thus initiated , and the engine torque is transmitted normally to the pinion 32.
- a first disadvantage of such a solution is that, depending on the geometrical dispersion of the starter parts, the actuating force exerted by the control lever 25 on the driver 33 during the excitation of the contactor 18 would be very high. , thereby causing an increase in the mechanical pressure of the liner 39 on the first friction surface 37. This high contact pressure in the friction clutch would cause premature wear of the friction clutch, with formation in addition to a significant residual drag torque which could degrade the freewheel function of the launcher 26.
- a second disadvantage of this negative-clearance solution is the mechanical shock that must be received by the stop 35 at each docking of the pinion 32 in the phase of training.
- an elastic washer with axial action can be mounted compressed axially inside the friction clutch, more precisely inside the freewheel. This washer is then interposed between a radial shoulder before the lining. friction, secured in this case of the driver, and the inner face of the aforementioned hood crimped on the coupling piece, so as to resiliently bias the friction frustoconical surfaces in contact with each other. This results in a predetermined axial force which applies the friction surfaces against each other.
- the spring washer can also be replaced by a helical compression spring or belong to the hood. The action of the spring washer or the spring inside the hood can be polluted by the dust coming from the friction clutch. It is the same when the spring acts between the coupling piece and the coach as described in documents FR A 2 826 696 and FR A 2 772 433 (US A 6 237 442)
- the object of the invention is to provide a starter equipped with a freewheeling launcher that overcomes the aforementioned drawbacks, and allows reliably to initiate the internal self-locking of the friction clutch in phase. drive, reduce wear, and increase the life of the starter.
- the starter according to the invention is characterized in that the elastic means comprise a priming spring arranged outside the freewheel and cooperating with the control means to generate a drag torque by friction, said torque being sufficient to initiating self-locking of the launcher during the driving phase, but relatively low so as not to significantly reduce the speed differential in freewheeling phase.
- the priming spring does not unduly slow down the relative movement between the friction surfaces during the freewheeling phase and the axial length of the freewheel can be reduced since the priming spring is implanted at the same time. outside of the freewheel shaped according to a friction clutch.
- the mounting of the priming spring outside the freewheel and therefore the friction clutch can be achieved easily because of the space saving, and allows a reliable internal ignition of the freewheel in the driving phase, with visual control of the presence and condition of the spring during final assembly.
- This check is easier to perform than in the case where the spring washer or the spring is mounted inside the freewheel as in the document FR-A-2 772 433 and FR A 2 826696 above, this solution leading to increase the axial length of the freewheel which is not the case in the present invention.
- This priming spring may be of the desired size to exert a precise effort and is not polluted by the dust coming from the friction linings because it is remote from them because it is implanted outside the body. friction clutch.
- the priming spring may be of any shape, and may be arranged in different places to act on the driver control means.
- the control means is formed by way of example by an actuating lever coupled to the contactor, and pivotally mounted in the starter by means of an axis, being resiliently biased by the priming spring to press the second friction surface against the first friction surface via the driver.
- the priming spring can act on the upper part of the lever directly on the link rod of the lever to the movable core of the contactor;
- the priming spring acts on the intermediate portion of the lever and is placed at the pivot axis of the lever;
- the priming spring is formed by an elastic blade cooperating with the lower portion of the fork-shaped lever coming into contact with the driver, said blade being intended to fit the fork of the lever with interposition of a predetermined game.
- the control lever is made of molded plastic material, and the elastic blade is metallic.
- the trainer is advantageously also made of plastic so that wear and operating noise are reduced.
- the elastic blade is secured to the lower part of the lever.
- the elastic blade then forms a metal cladding means permanently fixed to the control lever at the friction zones with the driver.
- the aforementioned elastic blade is mounted in a groove of the actuator. This blade acts axially on one of the sides of the groove where the bottom of the groove in the form of a shaft is squeezed, thus making it possible to create a resistive torque which allows the friction clutch to be primed and self-locking in view of the presence of splines and complementary teeth.
- the elastic blade is integral with the driver, for example integral with one of the flanks of the groove, and cooperates with the lower part of the lever.
- the interface connection of the launcher and the lever, via the elastic blade is of the metal-on-plastic type, so that the wear and the operating noise are reduced, knowing that a plastic friction on plastic generates wear and risk of squealing noise.
- the priming function of the clutch of the launcher clutch is reliably ensured in the three assemblies, thus allowing optimum transmission of the engine torque to the pinion, and precise operation of the freewheel.
- the force produced by the priming spring at the launcher is less than that produced by the spring teeth against teeth.
- Figure 1 is a schematic perspective view and partially cut away at the starter, a starter known according to the prior art
- Figure 2 shows an axial sectional view of the known starter of Figure 1
- FIGS. 3 and 4 show schematic views of a known launcher in the driving phase, respectively with positive backstop play (no friction cone cladding in the clutch), and negative (cladding of the two friction surfaces).
- clutch - Figures 5 to 7 show schematic views of three embodiments according to the invention, each making use of a priming spring implanted on the control lever of the launcher
- Fig. 7A shows an exploded perspective view of a control lever equipped with a leaf spring according to Fig. 7
- FIGS. 7B and 7C illustrate the phases of assembly and crimping of the leaf of the spring of FIG.
- FIGS. 8A to 8C are views similar to FIGS. 7A to 7C for a fourth embodiment; - Figure 8D is a front view corresponding to Figure 8C.
- Figure 9 is a perspective view illustrating the mounting of the control lever of Figures 8A to 8D on the launcher.
- the same reference numbers will be used to designate parts identical or similar to those of the launcher 26 of FIGS. 1 to 4.
- the control means consists of a lever 25.
- the launcher 26 comprises a drive gear 32, a driver 33 actuated by the fork of the control lever 25 pivoting on the shaft 31, and a free wheel 34 formed by a friction clutch, in particular truncated.
- the latter is provided with two complementary friction surfaces 37, 40 as in FIGS. 3 and 4.
- the blocking of the freewheeling starter 34 by friction is obtained by the combined action of the splines of the 33 and the friction cone after engagement of the two friction surfaces 37, 40.
- the electric motor 11 drives the pinion 32 and the ring gear for starting the internal combustion engine.
- the clutch is released in the freewheeling phase when the combustion engine drives the pinion 32 to a rotational speed greater than that of the driver 33.
- the driver 33 has an annular groove 133 for receiving the lower part. fork shape 47 of the lever 25.
- the priming of the self-locking is provided by elastic means external to the free wheel 34, shaped according to a friction clutch, and intended to generate a low intensity axial drag force, with creation of an action on the coach 33 and a friction-resistant torque between the two surfaces of the clutch.
- the elastic means comprise, according to the first embodiment of FIG. 5, a compression type priming spring R1, which acts on the rod 43 connecting the control lever 25 to the movable core of the contactor, that is to say say on the upper part of the lever 25 fork-shaped.
- the spring is interposed between the upper part of the lever 25, perforated for passage of the rod 43, and the free end of this rod carrying a shoulder for support of the spring R1 here of the coil spring type.
- the action of the spring R1 causes a slight pivoting movement of the lever 25 about the axis 31 and in the clockwise direction, so as to create a plating force of the second friction surface 40 against the first frustoconical friction surface 37.
- the resulting axial force at the launcher, more precisely at the groove 133, and produced by the spring R1 is lower in all embodiments to that which would produce the spring teeth against teeth, of Figure 2.
- this priming spring R1 generates a frictional drag torque between the driver 33 and the pinion 32, said torque being sufficient to initiate the self-locking of the launcher 26 in training phase, but relatively low to not significantly reduce the speed differential in the freewheel phase.
- the priming spring R1 is placed at the pivot axis 31 of the control lever 25, that is to say in the intermediate portion of the lever .
- the spring R1 acts on the sections of the shaft 31 at one of its ends and on a fixed portion of the starter at the other end thereof.
- the effect of this spring R1 is identical to that of Figure 5, and this results in a plating force of the second friction surface 40 against the first frustoconical friction surface 37.
- the priming spring R1 is placed at the lower part of the lever 25 in the form of fork 47.
- the throat Annular 133 of the coach 33 here preferably made of plastic material, is delimited by two transverse sides 134, 136 and a bottom 135, of axial orientation, in the form of a cylindrical shaft connecting the two flanks between them.
- the fork 47 is engaged in the groove 133 and is therefore traversed in this playful embodiment by the bottom 135 and it is for this reason that the fork 47 is generally U-shaped and has two fingers or shoes 147 belonging to the branches of the U. Each branch of the U therefore has, here at its free end, a finger.
- the spring R1 is constituted by an elastic blade 45, secured to the lower part of the control lever 25 on the side of the friction cone of the launcher 26 to act on the flank 134.
- the priming spring thus cooperates with the lever 25 and comes into contact with the driver 33 in the region of the fingers 147 of the fork 47.
- the lower portion of the blade 45 is fork-shaped 46 , intended to fit the fork 47 of the control lever 25 with the interposition of a certain axial clearance j in the region of the pads or fingers 147 of the fork 47.
- the fork 46 thus has two branches which are profiled at their free end to have a shape similar to that of the fingers 147 as best seen in Figure 7D. Initially a game therefore exists between these two profiled branches and the fingers 147.
- the assembly of the blade 46 is made by crimping on two studs 48 located under the pivot axis 31 of the lever 25.
- the upper part of the control lever 25 comprises a U-shaped bearing 49 in which is housed the axis 44 of the rod 43 connecting the movable core of the contactor.
- the studs 48 are advantageously molded with the lever here made of plastic. In this case the pins are crushed, for example hot, in contact with the blade 45 with holes for mounting on the pins.
- the pins comprise a stepped head and at least one slot affecting the pin and its head for snap-fitting of the blade 45 on the pins 48.
- the control lever 25 may be advantageously made of molded plastic material, while the blade 45 is metallic having a suitable elasticity.
- the blade 45 bears on the side 134 of the driver 33, and biases the second friction surface 40 against the first frustoconical friction surface 37.
- the blade 45 fixed on the fork 47, acts on the other side 136 of the groove 133.
- the blade 45 is fixed on the flank 134, 136 of the groove 133. It depends on the applications, the spring priming cooperating in all cases with the lever.
- the width of the groove 133 i.e. the distance between the flanks 134, 136, is in a larger embodiment than the total thickness of the finger 147 and the blade 45 relaxed. In this case, when the lever 25 is in the advanced position, the distance between the fingers 147 and the flank 134 must be sufficiently low to cause compression of the blade and generate the axial force of priming the freewheel.
- the width of the groove 133 that is to say the distance between the flanks 134, 136, is smaller than the total thickness of the finger 147 and the blade 45 relaxed.
- the blade does not compress completely (ie reduces) when mounting the fork in the groove 133 so that the contact of the fingers 147 with the flank 136 or 134 and the contact of the blade 45 with the flank 134 or 136 produce, when the lever is in the advanced position, a resistant torque between the driver and the lever. This torque allows the desired priming of the freewheel.
- the priming spring R'1 constituted by an elastic blade 145 is mounted inside the fork 47.
- the blade 145 is generally U-shaped whose apex is hole for mounting on a pin 48 from the lever 25.
- the blade 145 is corrugated
- the blade 145 comes into clamping contact with the bottom 135 of the annular groove 133.
- This blade is shaped to come into contact with the bottom 135.
- the blade 145 is corrugated and comes through contact with the top of these undulations to tighten elastically against the bottom 135 to, via the flutes and teeth, provide the priming function.
- This clamping depends on the applications and is relatively low so as not to disturb the movement of the driver 33 when the electric motor of the starter is powered.
- the fork 47 is mounted at low clearance in the groove 133 to allow priming of the freewheel.
- the flanks of the groove 133 are then advantageously metallic when the lever 25 is made of plastic. They are secured for example by overmolding the body of the coach.
- the ignition function of the clutch of the launcher 26 is provided by means of a spring R1, R'1 associated with the control lever 25.
- the spring R1, R'1 is perfectly visible, and is not integrated inside the freewheel.
- the shape of the priming spring R1 can be arbitrary to ensure the plating action of the two frustoconical friction surfaces 37, 40.
- the invention also applies to a starter without speed reducer 30 between the electric motor 11 and the launcher 26.
- the shaft 14 is also the output shaft.
- the collector 17 of the electric motor 11 can be indifferently of the radial or axial type.
- the skirt of the first concave friction surface 37 may be integral with the driver 33, and the second convex friction surface 40 is in this case integral with the pinion 32.
- the skirt with its radial portion may be of a single holding or be reported on the element which it is secured, for example by welding or crimping.
- the driver 33 and the pinion 32 may therefore be metal or sintered material.
- the hood of Figures 1 and 2 is advantageously present to make captive launcher.
- the coupling part comprises a skirt internally bearing one of the friction surfaces and having at its free end a housing for mounting a circlip to cooperate with the driver and make captive launcher.
- this circlip is replaced by a flange or tongues of transverse orientation obtained (s) by folding inward of the free end of the skirt.
- the driver 33 and the lever 25 are preferably made of plastic to easily obtain by molding the desired shape for these parts.
- the flank 134 may therefore be made of plastic in the embodiments of FIGS. 7 to 7D because of the presence of the metal blade 45.
- the other sidewall 136, furthest from the free wheel 34, is advantageously metallic while being reported attachment to the coach for example by overmolding.
- This flank consists for example of a metal washer. In this case we always get a metal contact on plastic material.
- the switch 18 is alternatively of the remote type. It extends for example perpendicularly to the shaft 14 of the electric motor 11 in the vicinity of the rear bearing that is to say opposite the launcher 26 as described in document FR A 2,843,427 filed 03/07 / 2002.
- the connecting rod to the movable core which acts on the upper part of the lever 25, is connected to the movable core by a second rod acting on the spring teeth against teeth and a return mechanism intervening between the two rods.
- the rod 43 thus acts directly or indirectly on the spring teeth against teeth.
- the pinion 32 is alternatively of the outgoing type with respect to the support 16 as described in document FR A 2,745,855.
- the actuating lever 25 is coupled to the contactor, and is pivotally mounted on a fixed hinge support 131 of the starter in the aforementioned manner with the aid of an axis.
- This axis 31 is integral with the lever 25 in the figures.
- it is the fixed hinge support which carries the axis, the lever being perforated for passage of the axis. All combinations are possible.
- the starter is a starter for a combustion engine, also called a heat engine, of a motor vehicle, such as a light or heavy vehicle, or a boat.
- the invention applies, of course, in the case where the combustion engine is stationary and serves for example to drive at least one power take-off.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Mechanical Operated Clutches (AREA)
- Retarders (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0509080-6A BRPI0509080A (pt) | 2004-05-25 | 2005-05-19 | arranque para um motor de combustão dotado de um volante de coroa dentada de partida |
CN2005800164852A CN1957176B (zh) | 2004-05-25 | 2005-05-19 | 设置摩擦操作活轮起动端头的起动器 |
JP2007513996A JP2008500485A (ja) | 2004-05-25 | 2005-05-19 | 自動車の内燃機関用スタータ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0405624 | 2004-05-25 | ||
FR0405624A FR2870894B1 (fr) | 2004-05-25 | 2004-05-25 | Demarreur de vehicule automobile equipe d'un lanceur a roue libre par friction |
Publications (1)
Publication Number | Publication Date |
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WO2006000667A1 true WO2006000667A1 (fr) | 2006-01-05 |
Family
ID=34946614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/001249 WO2006000667A1 (fr) | 2004-05-25 | 2005-05-19 | Demarreur equipe d’un lanceur a roue libre par friction |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2008500485A (fr) |
CN (1) | CN1957176B (fr) |
BR (1) | BRPI0509080A (fr) |
FR (1) | FR2870894B1 (fr) |
WO (1) | WO2006000667A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010064249A1 (de) * | 2010-12-28 | 2012-06-28 | Robert Bosch Gmbh | Anker für einen Elektromotor zum Antrieb einer Startervorrichtung |
FR3003307A1 (fr) * | 2013-03-13 | 2014-09-19 | Valeo Equip Electr Moteur | Demarreur a lanceur muni d'un embrayage a friction a double leviers de commande |
FR3004497B1 (fr) * | 2013-04-10 | 2015-03-27 | Valeo Equip Electr Moteur | Demarreur a lanceur muni d'un element intermediaire de reduction de frottement entre un levier de commande et un entraineur |
FR3037361B1 (fr) * | 2015-06-10 | 2018-10-26 | Valeo Equip Electr Moteur | Demarreur de vehicule automobile |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2876644A (en) * | 1958-01-17 | 1959-03-10 | Ronald L Clifton | Automotive mechanical starter |
FR2349227A2 (fr) * | 1975-11-07 | 1977-11-18 | Paris & Du Rhone | Perfectionnements aux demarreurs electriques |
US4479394A (en) * | 1981-06-18 | 1984-10-30 | Eaton Stamping Company | Electric starter with confined cushion |
US5367913A (en) * | 1991-08-21 | 1994-11-29 | Hitachi, Ltd. | Pinion shift device for starter and assembly method of the same |
EP1116880A2 (fr) * | 2000-01-17 | 2001-07-18 | Denso Corporation | Démarreur muni d'un levier de déplacement élastique pour déplacer le pinion |
WO2003072936A1 (fr) * | 2002-02-28 | 2003-09-04 | Valeo Equipements Electriques Moteur | Demarreur electrique a butee d'amortissement pour le lanceur |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1135713B (de) * | 1956-10-13 | 1962-08-30 | Theodore Lafitte | Schubschraubtrieb mit Einrueckhebel an elektrischen Andrehmotoren fuer Brennkraftmaschinen |
DE1080817B (de) * | 1958-09-17 | 1960-04-28 | Bosch Gmbh Robert | Schubschraubtrieb fuer Andrehmotoren von Brennkraftmaschinen |
DE10016706A1 (de) * | 2000-04-05 | 2001-10-11 | Bosch Gmbh Robert | Startvorrichtung |
FR2827341B1 (fr) * | 2001-07-10 | 2004-03-26 | Valeo Equip Electr Moteur | Demarreur pour vehicule automobile |
-
2004
- 2004-05-25 FR FR0405624A patent/FR2870894B1/fr not_active Expired - Fee Related
-
2005
- 2005-05-19 CN CN2005800164852A patent/CN1957176B/zh not_active Expired - Fee Related
- 2005-05-19 WO PCT/FR2005/001249 patent/WO2006000667A1/fr active Application Filing
- 2005-05-19 JP JP2007513996A patent/JP2008500485A/ja active Pending
- 2005-05-19 BR BRPI0509080-6A patent/BRPI0509080A/pt not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2876644A (en) * | 1958-01-17 | 1959-03-10 | Ronald L Clifton | Automotive mechanical starter |
FR2349227A2 (fr) * | 1975-11-07 | 1977-11-18 | Paris & Du Rhone | Perfectionnements aux demarreurs electriques |
US4479394A (en) * | 1981-06-18 | 1984-10-30 | Eaton Stamping Company | Electric starter with confined cushion |
US5367913A (en) * | 1991-08-21 | 1994-11-29 | Hitachi, Ltd. | Pinion shift device for starter and assembly method of the same |
EP1116880A2 (fr) * | 2000-01-17 | 2001-07-18 | Denso Corporation | Démarreur muni d'un levier de déplacement élastique pour déplacer le pinion |
WO2003072936A1 (fr) * | 2002-02-28 | 2003-09-04 | Valeo Equipements Electriques Moteur | Demarreur electrique a butee d'amortissement pour le lanceur |
Also Published As
Publication number | Publication date |
---|---|
FR2870894A1 (fr) | 2005-12-02 |
CN1957176B (zh) | 2010-05-26 |
BRPI0509080A (pt) | 2007-08-21 |
FR2870894B1 (fr) | 2008-11-14 |
CN1957176A (zh) | 2007-05-02 |
JP2008500485A (ja) | 2008-01-10 |
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