CN1882774A - Internal combustion engine starter comprising a cylinder head and speed reducer centring means on the case - Google Patents

Abstract

The invention relates to a starter comprising an electric engine (11) which is connected to a starter drive assembly (30) with a planetary gear speed reducer (45) inserted therebetween. According to the invention, the reducer is housed inside a fixed ring gear (46) which comprises a centring ring (73) having a first support face (70) which is located in the same plane as the connection interface between the support (16) and the cylinder head (15). The invention is suitable for a motor vehicle starter.

Description

The starter of internal-combustion engine of on housing, being furnished with the centering part of retarder and sleeve

Technical field

[01] the present invention relates to the starter of internal-combustion engine, especially the starter of the internal-combustion engine of motor vehicle, it has an electric motor, this electric motor has the cylindrical sleeve and a rotor of a supporting stator, this rotor engages with an output shaft, so that drive a starting head by the planet gear train type retarder rotation of planting, described retarder comprises:

[02]-one gear ring, it has radially side plate of an inner toothed cylindrical annular skirt section and, this radially side plate be furnished with a hole, be used to make described output shaft to pass through coaxially, and

[03]-axially centering part, its with described gear ring axial alignment in the supporting member of described starter.

Background technique

[04] FR-A-2767157 proposes a kind of starter of internal combustion engines of motor vehicles of described type, and wherein, the axially locating of the fixed gear ring of retarder on the starter supporting member is to be undertaken by the contact of a wall on a flange of supporting member of gear ring.The sleeve of excitation system is bearing on the end of supporting member, its with the flanged shaft of supporting member to separating an intended distance.Centering of supporting member and sleeve carried out on the whole length of the ring-shaped skirt of gear ring.This arrangement requirement must be carried out the accurate machining of supporting member, especially locates in the flange and the end of the afore-mentioned distance that is separated from each other.The tolerance of this size be increased at interval starter dimensional chain (

De cotes) in.

Summary of the invention

[05] content of the present invention is to implement a kind of starter that remedies aforementioned disadvantages, so that obtain centering and accurately locating of retarder gear ring, simplifies the machining processes of supporting member, reduces the dimensional chain of starter.

[06] starter of the present invention is characterised in that, the gear ring of described retarder has one first supporting surface, and it is in the plane identical with linkage interface between described supporting member and described sleeve.Described linkage interface is limited between one second supporting surface of described supporting member, axially is resisted against on one the 3rd supporting surface of described sleeve.The machining of supporting member obtains simplifying, because have only second supporting surface of supporting member must carry out machining.

[07] according to a preferred embodiment, described gear ring has a flange, and this flange is furnished with first supporting surface that contacts with described supporting member.Described flange centers on described supporting member to guarantee described sleeve and described gear ring from the skirt section projection of described gear ring.The gear ring of described retarder carries out the axial translation locking by described flange and by a stop protrusion of described sleeve.

[08], between the sleeve of starter and supporting member, obtains good electrical connection according to the present invention.

[09] with respect to US A 4 649 285 and US A 5 718 147 described solutions, base plate is removed, and the sleeve simplification, because according to the present invention, it directly is bearing on the supporting member, need not to dispose a flange.

[10] consider WO 01/31195, also can simplify starter.In fact, in one embodiment, the gear ring of retarder preferably has an extension, and it is configured as the hinge function of guaranteeing operating handle.Therefore, the supporting of avoiding using an installation part to implement operating handle and hinged simplify machining processes, so that seamlessly keep treating assembled component.

[11] contact disk of especially making with elastic material with flexible material is put between preferably between a supporting surface of the extension of gear ring and contactor casing.The configuration of contact disk is avoided contactor this part carried out machining.

[12] according to first mode of execution, the extension of gear ring is furnished with supporting member, and for example one or two tongue piece constitutes a bearing at the articulated elements rear portion of operating handle, and the front portion of described articulated elements is formed by a fixed base on the supporting member of starter.

[13] according to second mode of execution, the extension of gear ring comprises a support of operating handle, so that the turning axle of operating handle is packed into fully in the gear ring of retarder.Various connection methods can be arranged:

[14]-support and operating handle have the hole, insert the single-revolution axle so that traverse;

[15]-and support is furnished with two elastic claws, and the holes that it is furnished with two alignment are used to admit the turning axle that is contained on the operating handle;

[16]-and support comprises two elastic claws, it is furnished with supporting surface, is used for being bonded on an annular recessed neck of operating handle;

[17]-and support has a U-shaped frame, is used to admit turning axle, and it can belong to or not belong to operating handle.

[18] according to the 3rd mode of execution, the extension that is used for hinged operating handle is formed by a member that is connected with gear ring by known fixation method own.

[19] miscellaneous function can be guaranteed in the extension.

[20] in fact, according to a mode of execution, the gear ring of retarder has an extension, and it is configured as a plug-in type retainer, is inserted in the cavity of admitting operating handle.The extension of gear ring is suitable for the width of cavity, and it constitutes a location and a guiding element that is recessed into of operating handle.

[21] supporting member of starter is than the simplification of document FR2787833 proposition, because do not need strengthening rib or make gear ring carry out the special shape that stop is rotated.When inserted the extension of gear ring, the admittance cavity of operating handle played this stopping function automatically.

[22] extension of gear ring preferably includes a support or one or two tongue piece of operating handle.Gear ring also obtains simplifying, because the support of operating handle or hinged tongue piece guarantee that simultaneously gear ring carries out stop and rotates.As previously mentioned, put between a contact disk made from flexible material between a supporting surface of the extension of gear ring and contactor.

[23] the molded distortion danger of gear ring made from thermoplastic material obtains restriction, and, in the supporting member of starter, do not dispose strengthening rib or other convex shape, vacate spare space, with the bigger parts of installation volume, the starting head that for example a diameter is bigger.

[24] extension can be molded with gear ring, or formed by a member that is connected with gear ring by fixation method.

Description of drawings

[25] with reference to accompanying drawing and following description to the present invention's one non-limiting mode of execution, other superiority of the present invention and feature will be better understood, and accompanying drawing is as follows:

[26] Fig. 1 is an axial section of being furnished with the starter of the present invention starting hinged operating handle;

[27] Fig. 2 is the amplification profile of the gear ring of retarder, and it comprises a support of a setting-in turning axle;

[28] Fig. 3 is the sectional view of Fig. 2;

[29] Fig. 4,5 identical with Fig. 3 with 7 illustrates three hinged embodiments of starting heed sticks;

[30] Fig. 6 is the sectional elevation figure of Fig. 7;

[31] Fig. 8 illustrates the inside of the gear ring place starter supporting member of retarder;

[32] Fig. 9 is the sectional drawing along 9-9 among Fig. 8;

[33] Figure 10 is the amplification profile of retarder shown in Figure 1, and the center situation of gear ring with respect to supporting member and sleeve is shown;

[34] Figure 11 is the part figure that is similar to Fig. 3, and another embodiment of no operating handle is shown, and has only one of starter retarder gear ring to extend tongue piece.

Embodiment

[35] as shown in Figure 1, starter 10 has an electric motor 11, and it is made up of a coaxial mounted stator 12 and a rotor 13, and stator 12 is around rotor 13, and it rotates installation around an axis 14 in a sleeve 15.Sleeve 15 is connected with the metal carrier 16 that is used for fixing the starter on motor vehicle one standing part.

[36] supporting member 16 is made with for example aluminium base moldable material of moldable material here.

[37] stator 12 for example has an inducing winding 17, and it has two pairs of coils 18, and each all centers on a pole shoe 19 that is connected with sleeve 15 and twines.It is on the sleeve 15 of metal here that pole shoe 19 is fixed to by means of screw 20, as (Fig. 1) as described in the document FR-A-2 611 096.Each coil 18 is made up of a continuous lead, and it twines along its thickness direction around pole shoe 19, to form the increasing concentric splicing wire turn of diameter, shown in Fig. 2 to 5 among the document EP A 7 491 94.The axis of each coil 18 is radially with respect to the axis 14 of the rotor 13 of the running shaft that constitutes electric motor 11.

[38] rotor 13 has a lamination, and it is furnished with groove, is used to install safety pin shape electric wire 21.These electric wires 21 are connected to each other, and to form a rotor winding that is connected with conducting plate 22, conducting plate 22 belongs to axle 24 commutators 23 that are connected with electric motor 11.In other embodiments, winding is the continuous conductors formula.

[39] brush 25 rubs on the sheet 22 that confluxes of commutator 23, powers to the rotor winding.Brush 25 belongs to a guiding of being furnished with brush and a brush spring 26 of admitting retainer, and it is by the direction effect of spring 27 towards the sheet 22 that confluxes.Brush spring 26 is connected with a rear bearing 28, and it has a fixed base at middle body, is used to install a needle bearing 29.Rear bearing 28 is used for installing rotationally the rearward end of the axle 24 of electric motor 11.This axis of 24 overlaps with the axis 14 of rotor 13, and with the dead in line of the output shaft 43 of the axle that constitutes starting 30.Needle bearing 29 is used for the centralized positioning device in the rearward end of sleeve 15, and is connected to by fixing bolt 31 on the supporting member 16 of starter 10.Fig. 8 illustrates two tapped holes (not indicating) that are used to tighten fixing bolt on the supporting member.These holes are opposed fully, and each hole all utilizes a lug of the radial and axial projection that supporting member has at the rear portion to form (also referring to Fig. 1 and 10).Fixing bolt 31 is arranged in the outside of sleeve 15.Here, there is a little gap between the outer periphery of fixing bolt and tubular sleeve 15.

[40] as shown in Figure 8, supporting member has the big lug of two ribbings, and each lug has a hole, and a fixed block that is used to make supporting member is a screw or the bolt standing part crankcase for example that enters internal-combustion engine for example.One of lug has a via hole.Here, the hole is a tapped hole.

[41] starter 10 also has an electromagnetic contactor 32, and it extends with electric motor 11 with paralleling, and radial arrangement is on it.Contactor 32 has a casing 33 by supporting member 16 supportings, and is furnished with an exciting winding B, and described exciting winding B is furnished with at least one coil.Lid 34 sealings that casing 33 is forwardly made by an electricity consumption insulating material.The fixing of lid 34 undertaken by casing 33 free-ended material crimps.One convex shoulder of casing 33 can be guaranteed the axially locating of a secured core 35, and described secured core 35 carries out axially locating by the lid 34 with power supply terminal 36,37 on other direction.

[42] tenminal block 36,37 is configured as each and all forms a fixed contact 38 in lid 34.One of tenminal block 36 is used for being connected with the positive terminal of storage battery, and another tenminal block 37 is connected with positive polarity brush 25 with the inlet of the inducing winding 17 of stator by a lead 39.When excitation winding B, a movable core 40 is attracted by the direction of magnetic attraction towards secured core 35, makes the make contact of contactor 32 simultaneously and an operating handle 41 of starting 30 is acted on.

[43] output shaft 43 is installed in the fore bearing 42 that for example is made of a needle bearing of supporting member 16.As described in document FR-A-2 787 833, the rearward end of output shaft 43 has a groove, and arranging a sliding bearing 44, it is used for installing rotationally the front end of the axle 24 of electric motor 11.Described front end is configured as and forms a sun gear 49, and it belongs to a planet train of gearings, constitutes a gear reducer 45, puts between the axle 24 of output shaft 43 and electric motor 11.

[44] retarder 45 has the cylindrical gear ring 46 of a rotational fixation, and it has an inner toothed ring-shaped skirt 61 (Fig. 1,2,6,10).Skirt section 61 is an axial orientation, therefore has cylinder form.The tooth 48 in the skirt section 61 of gear ring 46 is an axial orientation, is meshed with planetary pinion 47, and described planetary pinion 47 is around being installed rotationally by the axle of horizontal platform supporting, and spools 43 rearward end of described horizontal platform and starting 30 is connected.Gear ring 46 is moulded parts.Here, the mouldable plastics of gear ring 46 usefulness are made, and preferably make with the best rigid thermoplastic material of being strengthened by fiber.

[45] starting 30 is slidably mounted on the output shaft 43, has transmission device 51 and that an actuation gear 50, handled by the operating handle 41 that rotates and puts freewheel 52 between transmission device 51 and gear 50 between axially.

[46] hollow support 16 has and is used to start 30 and be used for the seat chamber of operating handle 41, as Fig. 1 and 8 to 10 more clearly visible.

[47] transmission device 51 is furnished with spiral chute in inside, and the external spiral tooth that itself and output shaft 43 are supported carries out the complementation engagement.Therefore, when starting 30 by operating handle 41 when retainer 53 moves, a spiral motion is carried out in starting 30, so that by means of described hollow supporting member 16, be the recess (Fig. 1 that implements in the sharp dome shaped front portion, 9 and 10), starting 30 employing gear ring and be meshed by its gear 50 and internal-combustion engine (not shown).

[48] obvious, freewheel 52 formula devices can replace the conical clutch formula connection set of document FR-A-2 772 433 described types.

[49] same, obviously, in other embodiments, starting 30 is arranged in the outside of supporting member partly in its front portion.Exactly, the gear 50 of starting 30 is not arranged in (Fig. 1 and 10) in the supporting member, and can be arranged in the outside of supporting member, for example as shown in reference FR A 2 745 855.

[50] internal-combustion engine can be fixed to or belong to motor vehicle, for example touring car or yacht.

[51] operating handle 41 is connected on the movable core 40 of contactor 32 by its upper end, part has a pivot 54 therebetween, according to a feature, described pivot 54 can be partly or is installed in an extension of the fixed band toothed ring gear 46 of gear reducer 45 fully.Operating handle 41 usefulness one moulded parts is made, and preferably makes with the best rigid thermoplastic material of being strengthened by fiber.

[52] as Fig. 8 and 9 more clearly shown in, supporting member has first fixed base and that is particularly useful for the bottom of operating handle 41 and is used for gear ring 46 and is used to install the second little fixed base of size on pivot 54 and operating handle top.Fig. 8 illustrates two holes at the second fixed base place, is used for the casing by the screw contactor.The profile of second fixed base has an annular convex shoulder, is used to support the front portion of cylindrical box 33.

[53] first fixed bases are limited by an annular-shape at the rear portion, are used to admit the front portion of gear ring 46.

The profile of [54] second fixed bases is extended (Fig. 9) with respect to the profile axial projection ground of first fixed base.

[55] one radial passage 170 are arranged in (Fig. 8) between two fixed bases.

[56] this path has a following described cavity 69.

[57] as shown in Figure 1, the extension of the gear ring 46 of retarder 45 is made of one or two flat tongue pieces 55, and each tongue piece 55 all has half cylinder-shaped bearing 56, is used to admit pivot 54.

[58] described tongue piece 55 is arranged in the outer periphery of gear ring 46, and is molded with gear ring 46 here.Described tongue piece 55 is with respect to axis 14 transversal orientations, and towards electromagnetic contactor 32.Described bearing 56 constitutes the supporting member of operating handle 41 at the rear portion of articulated elements, the front portion of articulated elements is implemented by a bearing shape fixed base on supporting member 16.The sealing contact disk 58 that space between the supporting surface 57 of the rear portion of described tongue piece 55 and contactor 32 is made by a usefulness elastic material occupies, and it can absorb dimensional changes.

[59] in this embodiment, half-cylindrical bearing 56 is molded with the tongue piece 55 of the extension of gear ring 46, and pivot 54 is molded with operating handle 41.The superiority of this installation is, the supporting of avoiding using an installation part to implement operating handle 41 and hinged simplify machining processes, so that seamlessly keep treating assembled component.

[60] Fig. 2 to 7 illustrates other embodiment, and wherein, the pivot 54 of operating handle 41 is installed on the gear ring 46 of retarder 45 fully.

[61] shown in Fig. 2 and 3, operating handle 41 has on top and is used for the hinged seat 59 that is connected with movable core 40, has a Y-piece 60 that is used to be bonded on the transmission device 51 in the bottom.The skirt section 61 of the axial orientation with internal tooth 48 of gear ring 46 is connected to a side plate 62 radially, and it has one by the output shaft 43 coaxial holes of passing 63 in central authorities.

[62] constitute the bottom of gear rings 46 with respect to the side plate 62 of axis 14 transversal orientations.This side plate 62 belongs to the front portion of gear ring 46, preferably has the back (dorsalement) (not indicating on Fig. 3) that is used for its radially strengthening rib that rigidly fixes.

[63] gear ring 46 of retarder 45 is furnished with a support 64 (chape) that can insert pivot 54, with hinged operating handle 41.Support 64 replaces tongue piece 55, preferably molded with gear ring 46, and pivot 54 is the installation parts that pass a hole of operating handle 41, so that in the hole 65 of the alignment of insertion support 64, described support 64 extends transverse to the outer periphery of gear ring 46, and towards the direction of contactor shown in Figure 1.

[64] as shown in Figure 4, the support 64 of gear ring 46 is formed by the two elastic claw 64a, the 64b that are furnished with two aligned holes 65.Pivot 54 is molded with operating handle 41, can be after pawl 64a, 64b laterally remove in the patchhole 65.

[65] as shown in Figure 5, each is furnished with a gudgeon 66 two elastic claw 64a, the 64b of support 64, and it is clamped in the annular recessed neck 67 of operating handle 41, so that described operating handle 41 is hinged on the gear ring 46.

[66] in the embodiment shown in Fig. 6 and 7, be provided in the support 64 on the extension of being with toothed ring gear 46, have a U-shaped bearing 68 (berceau), pivot 54 is bonded on wherein.Pivot 54 can be installed on the operating handle 41, especially by molded, perhaps laterally is inlaid in the hole of operating handle 41.

[67] obvious, the admittance support 64 of pivot 54 can be made of a member that is fixed on the band toothed ring gear 46, rather than directly molded with the gear ring of retarder, in the embodiment shown in Fig. 2 to 7.Articulated elements can be by any means of fixation, especially by welding, bonding, clipper joint, setting-in, in a T-slot, slide or engage with dovetail joint, carry out mechanical connection with gear ring.

[68] as among the embodiment shown in Fig. 2 to 7, the hinged installation of operating handle 41 on the gear ring 46 of retarder 45 has following superiority:

[69]-simplify the machining of supporting member 16,

[70]-fixed base of the supporting surface 57 of contactor 32 and the supporting member of operating handle 41 can keep native state,

[71] the sealing contact disk made from elastic material 58 is inexpensive members of supporting member of an operating handle that proposes than document FR-A-2 787 833.

[72] shown in Fig. 8 and 9, the twist-lock of band toothed ring gear 46 is preferably implemented by support 64, and described support 64 is arranged in a complementary shape cavity 69 that is arranged in as previously mentioned on the supporting member 16.Except that the effect of its hinged operating handle 41, support 64 also constitutes a plug-in type retainer simultaneously, and it is sized to the width that is fit to cavity 69.Cavity 69 is arranged to operating handle 41 is positioned and leads, and constitutes a recessed holder of support 64, is used for the gear ring 46 of rotational fixation retarder 45.

[73] this cavity 69 is limited by the two-part bottom of one-tenth that indicates with dotted line 369 on Fig. 8 on the one hand, with supporting bracket 64, is limited by both sides of the edge 169 on the other hand.Side margin is connected to the axial edge (not indicating) of lateral alternate.This is molded forming.

[74] in other embodiments, described tongue piece (Fig. 1 and 11) constitutes the plug-in type retainer.

[75] extension of gear ring constitutes the plug-in type retainer in the cavity 69 that is bonded on the supporting member 16 of admitting operating handle, therefore is configured as the effect of guaranteeing the pivot stop gear ring.

[76] this extension also is configured as the effect of guaranteeing hinged operating handle 41.

[77] 58 of contact disks are put between a supporting surface 57 and extension of the casing 33 of contactor 32.Peripheral within it being configured as with the outer periphery of sleeve 15 of this contact disk matched, and therefore, is not furnished with recess at this place, and has simple shape.

[78] therefore, with respect to the starter supporting member of document FR-A-2 787 833 and FR-A-2 767 157 propositions, the supporting member 16 of starter obtains simplifying, because do not need to be used for the strengthening rib or the particular groove of pivot stop gear ring 46.In the supporting member 16 of starter, do not dispose strengthening rib or other projection, vacating space, with the bigger parts of installation volume, for example the starting that a diameter is bigger 30.

[79] in the embodiment shown in Fig. 8 and 9, support 64 has the double action of hinged operating handle 41 and pivot stop gear ring 46, thereby also simplifies the manufacturing of gear ring 46.Therefore, the distortion danger of gear ring 46 moulding made from thermoplastic material obtains restriction.

[80] Figure 10 gear ring 46 that retarder 45 is shown is with respect to the positioning device of the sleeve 15 of the supporting member 16 of starter and electric motor 11.Gear ring 46 has a flange 73 in its protruding outer periphery, and it has one first supporting surface 70, and the plane at described first supporting surface 70 places is identical with the 3rd supporting surface 72 of the sleeve 15 of second supporting surface 71 of the supporting member 16 of starter and electric motor.

[81] exactly, be radial directed and ringwise flange 73 here, axially stagger with respect to bottom 62, as Fig. 2 and 6 more clearly shown in.

[82] second supporting surface 71 of supporting member is formed at here the free end for the supporting member 16 of metal, the i.e. rearward end of supporting member 16.

[83] here for the 3rd supporting surface of the sleeve 15 of the metal free end by sleeve 15 constitutes, in abutting connection with second supporting surface 71.

[84] supporting surface 70 to 72 carries out horizontal expansion with respect to axis 14.

[85] band toothed ring gear 46 centering in supporting member 16 guaranteed by first supporting surface 70 of flange 73.Sleeve 15 carries out on the external diameter of flange 73 in centering on the gear ring 46.The 3rd supporting surface 72 of sleeve 15 contacts with second supporting surface 71 of supporting member 16, thereby for good and all guarantees the electrical connection between sleeve and the supporting member.

[86] should be pointed out that flange 73 is extended towards the rear portion by the netted strengthening rib 402 with different length of axial orientation, reverse with operating handle 41.These strengthening rib are distributed on the circumference, strengthen skirt section 61.

[87] as shown in Figure 2, extend between the supporting surface 70 of side plate 62 and flange 73 outer periphery of the leading portion in skirt section 61, has point projection 400.Equally, point projection 401 is extended in the outer periphery of strengthening rib 402, as shown in Figure 8.

[88] therefore, be easy to make leading portion to be fastened in first fixed base of supporting member, same, be easy to make sleeve firmly to be installed on the strengthening rib 402.Owing to have projection 400,401, so this is easy to accomplish that described protruding 400,401 have the effect of twist-lock gear ring and sleeve 15.

[89] locking of the axial translation of the gear ring 46 of retarder 45 is the result of a configuration radial flange 73 and a stop protrusion 74, and described flange 73 is bearing on second supporting surface 71 of supporting member 16 by its supporting surface 70.Stop protrusion 74 obtains by the punching out shape on the sleeve 15, is bearing on the skirt section 61 relative with flange 73.

[90] exactly, projection is bearing on the skirt section 61 by a radial flange of a metal construction 100, and described metal construction 100 is called dust-proof cover, is axially fixed on the free end in skirt section by means of one convex shoulder (not indicating).The free end in skirt section 61 has axial pawl, is four pawls that are evenly distributed on the circumference here, and each all is embedded in the recess of member 100, makes it carry out rotating position.

[91] gear ring 46 center and locating flange 73 can be simplified machining processes, reduce the dimensional chain of starter.Have only second supporting surface 71 of supporting member 16 must carry out machining.

[92] obvious, by specification and accompanying drawing as seen, pawl 64a, the 64b of tongue piece 55 and support 64 arrange a space therebetween, are used to make operating handle made of plastic 41 to pass through here.Tongue piece 55 is corresponding to pawl 64a, the 64b of support 64, and each only has a bearing 56.

[93] operating handle 41 carries out the connecting rod that elasticity is connected by one with movable core 40 and is connected with movable core 40, shown in Fig. 1 part, and shown in Figure 2 as among the document FR-A-2 787 833.Y-piece 60 has two and refers to bar in its lower end, described finger bar enters a recessed neck that is arranged in the transmission device 51, and one of side of described recessed neck is formed by the packing ring that a locking is installed on the transmission device, as described in FR-A-2 687 736.

[94] according to the present invention, have simplified structure as the cylindrical sleeve 15 of casing 33, because gear ring 46 has an extension, be transversal orientation here generally.Extend in the extension of the side plate 62 of the gear ring 46 of hollow shape basically this extension, as the fixed base of epicyclic train formula retarder.

[95] obvious, the present invention is not limited to described embodiment.Therefore, in other embodiments, axle 54 is molded with operating handle 14, and, as shown in figure 11, set a single tongue piece 55 in foregoing mode, described tongue piece 55 transversal orientations towards contactor, have the admittance recess 155 of the cylindrical pivot 54 of an admittance in its outer periphery.Therefore, tongue piece 55 is little at its rectangular generally recess 155 place's thickness, and it leads to the outer periphery of rectangular generally tongue piece 55.

[96] bottom 159 formations one of recess 155 are used for the convex shoulder of axle 54, preferably have circular profile.

[97] this 54 is the axle of type shown in Figure 4 here, therefore has two cylindrical contact disk or the bolts that extend in the main body both sides of operating handle 41.

[98] for simplicity, Figure 11 is shown in broken lines the contact disk of axle 54.

[99] in this case, each is all limited these contact disks by the planar surface of a transversal orientation, and is opposite with the contact disk of axle 54 shown in Figure 4, and it is limited by a plane of inclination, to remove pawl shown in Figure 4.

[100] open width, greater than the length of axle 54 at the recess 155 on the rear surface of the tongue piece 55 of supporting member 16.

[101] height of this recess is greater than the diameter of axle 54.

[102] in this Figure 11, recess 155 has a reduced thickness portions 156 in central authorities, and therefore, it is limited to two supporting portions 157 that extend reduced thickness portions 156 both sides.These supporting portions 157 are the supporting portions that are used for the contact disk of pivot 54.

[103] reduced thickness portions 156 is avoided influencing each other with the main body of operating handle 41.

[104] obvious, by specification and Figure 11 as seen, the size of the circular profile of bottom 159 is determined according to the diameter of the contact disk of axle 54.

[105] superiority of this installation is, the supporting of avoiding using an installation part to implement operating handle 41 and hinged simplify machining processes, so that seamlessly keep treating assembled component, because the described one or more bearings 56 of notch ratio are more easily implemented.In addition, arrange a firm big tongue piece 55.Bottom 59 ground connection that links to each other with supporting portion 157 constitutes one, be used for operating handle 41 spool and the one supporting surface.

[106] width of this tongue piece 55 is determined size according to cavity shown in Figure 8 69.The side margin 210 of tongue piece 55 is suitable for carrying out complementary fit with the side margin 169 (Fig. 8) that limits cavity 69, with twist-lock or fixed gear ring 46.

[107] here, in central authorities tongue piece 55 being carried out rigidity reinforces.

[108] therefore, set two strengthening rib 158, extend its strengthening rib 160 both sides in type shown in Figure 3.

[109] for making these strengthening rib be easy to dispose a central opening 210 with the molded formation of gear ring, it has bottom 159 in central authorities at reduced thickness portions 156 places of recess 155.

[110] strengthening rib 158 limits the side margin of rectangular opening 210.Central authorities' strengthening rib 160 leads to vertical bottom of opening 210.

[111] shown in Fig. 3,4,5,7, gear ring 46 exactly is a side plate 62, has a protruding pin 300, shown in Fig. 2 and 3.This protruding pin relatively extends on diameter with respect to support 64, perhaps in other embodiments, relatively extends on diameter with respect to the described one or more tongue pieces 55 that replace support 64.This protruding pin complementally is received in the cavity 269 of supporting member 16, therefore, matches with extension or at least one tongue piece 55 of the gear ring of support 64 shapes, participates in twist-lock gear ring 46.

Claims (8)

1. the starter of internal-combustion engine, it has an electric motor (11), this electric motor (11) has the cylindrical sleeve (15) and a rotor (13) of a supporting stator (12), this rotor (13) engages with an output shaft (43), so that rotate driving one starting head (30) by the mode of the planet gear train type retarder (45) of planting, described retarder comprises:

-one gear ring (46), it has radially side plate (62) of an inner toothed cylindrical annular skirt section (61) and, this radially side plate (62) be furnished with a hole (63), be used to make described output shaft (43) to pass through coaxially, and

-axial centering part, its with described gear ring (46) axial alignment in the supporting member (16) of described starter,

It is characterized in that the gear ring (46) of described retarder (45) has one first supporting surface (70), it is positioned at and the identical plane of linkage interface between described supporting member (16) and described sleeve (15).

2. starter according to claim 1 is characterized in that, described linkage interface is limited among one second supporting surface (71) of described supporting member (16), axially is resisted against on one the 3rd supporting surface (72) of described sleeve (15).

3. starter according to claim 2 is characterized in that, described gear ring (46) has a flange (73), and this flange (73) is furnished with first supporting surface (70) that contacts with described supporting member (16).

4. starter according to claim 3 is characterized in that, described flange (73) centers on described supporting member (16) to guarantee described sleeve (15) and described gear ring (46) from skirt section (61) projection of described gear ring (46).

5. starter according to claim 3 is characterized in that, the gear ring (46) of described retarder (45) carries out the axial translation locking by described flange (73) and by a stop protrusion (74) of described sleeve (15).

6. starter according to claim 3 is characterized in that, the described flange that centers (73) directly carries out molded with described gear ring (46).

7. starter according to claim 1 is characterized in that, it has one and is furnished with the starting head (30) of a transmission device (51), the supporting member (16) that an operating handle (41) that engages with described transmission device (51) and is admitted an operating handle (41); And the gear ring (46) of described retarder (45) has an extension, and it is configured as the effect of guaranteeing hinged described operating handle.

8. starter according to claim 1 is characterized in that, it has one and is furnished with the starting head (30) of a transmission device (51), the supporting member (16) that an operating handle (41) that engages with described transmission device (51) and is admitted an operating handle (41); And the gear ring (46) of described retarder (45) has an extension, and it is configured as a protruding formula member, and this protruding formula member engages is in a cavity (69) of the supporting member (16) of admitting an operating handle (41).

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