• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Transmission for a rolling machine (1) comprising a housing (2) at least partially housing driving means (3), a rotary drive member (5) in permanent engagement with the driving means (3), means (4) for driving driving wheels (7A, 7B) of the same pair of wheels of the machine (32), said means (3) driving motors comprising a motor (31) equipped with a shaft (32) engine and said means ( 4) for driving the wheels comprising a wheel drive shaft (6) integrally formed, or at least two coaxial wheel drive shaft sections (6A; 6B) each adapted to drive a wheel (7A; 7B) of the same pair of wheels of the machine, and disposed between, the wheel drive shaft (6) or each of the wheel drive shaft sections (6A; 6B) and the driven member (5), a clutch mechanism / clutch (8) automatic clutch. The drive shaft (32) of the driving means (3) for driving the rotation of the driven member (5) extends parallel to the longitudinal axis of the wheel drive shaft (6) or to the longitudinal axis of each of the wheel drive shaft sections (6A; 6B).
    公开号:FR3036450A1
    申请号:FR1554467
    申请日:2015-05-19
    公开日:2016-11-25
    发明作者:Antoine Testasecca
    申请人:France Reducteurs SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to a transmission for a traveling vehicle with a preferably walking conductor and to a rolling machine equipped with such a transmission. It relates more particularly to a transmission for a wheeled vehicle, preferably with a walking conductor, of the type comprising at least one housing, preferably stationary housing at least partially motor driving means, a rotary driven member, such as a toothed wheel, permanent engagement with the driving means driving motors in rotation of said driven member, means for driving the wheels of the same pair of wheels of the machine, said driving means comprising a motor equipped with a motor shaft and said wheel driving means comprising an integral wheel drive shaft, or at least two coaxial wheel drive shaft sections, each of which is capable of driving a wheel of the same pair of wheels; the machine, and disposed between the wheel drive shaft, or each of the wheel drive shaft sections, and the driven member, a clutch mechanism, the or each clutch mechanism e, being activated by the rotational drive of the driven member in a first direction of rotation in said forward motion, and deactivated by the forward rotation drive of the shaft or the shaft section with which it cooperates, when the speed of rotation of the shaft or said wheel drive shaft section is greater than the rotational speed of the driven member, the drive shaft of wheels or each wheel drive shaft section being, in the deactivated state of the corresponding clutch mechanism, free to rotate in any of its directions of rotation. Such transmissions incorporate a clutch, said automatic, which does not require, for its operation, a dedicated controller, such as a fork, as is the case in traditional clutches. In such a transmission, when driving in rotation in a direction 3036450 said 2 forward of the driven member, the clutch mechanism is deactivated when the rotational speed of the drive shaft of the wheel. gear is greater than the rotational speed of the driven member. This characteristic makes it possible, generally because of the inertia of the machine, 5 to deactivate the clutch mechanism (s) automatically when the machine stops. Indeed, when the machine is stopped, the driven member stops rotating and the shaft or the wheel drive shaft sections of the machine driven (s) by the inertia of the machine ensures ( nt) deactivation of the clutch mechanism, which then makes it easy for the machine to move easily on the ground, whether forwards or backwards. However, until now, the connection between the motor output shaft of the drive means and the wheels is a link with a low efficiency. An object of the invention is therefore to propose a transmission of the aforementioned type, the design of which makes it possible to increase the efficiency of the transmission between the engine output shaft and the wheels of the machine, while simplifying and reducing the bulk. of said transmission. To this end, the subject of the invention is a transmission for a traveling vehicle, preferably a walking vehicle, of the type comprising at least one housing, preferably stationary, at least partially housing driving means, a rotary driven member, such as a toothed wheel, in permanent engagement with the driving means driving motors in rotation of said driven member, means for driving the wheels of the same pair of wheels of the machine, said driving means comprising a motor equipped of a motor shaft and said wheel drive means comprising a wheel drive shaft integrally formed, or at least two coaxial wheel drive shaft sections, each adapted to drive a wheel of the same pair of wheels of the machine, and disposed between the drive shaft 3036450 3 wheels, or each of the wheel drive shaft sections, and the driven member, a clutch mechanism , the or each m clutch, being activated by the rotational drive of the driven member in a first direction of rotation said forward drive, and deactivated by the drive in rotation in the forward direction of the shaft or the a wheel drive shaft section with which it cooperates, when the rotational speed of the shaft or said wheel drive shaft section is greater than the rotational speed of the driven member, the wheel drive shaft or each wheel drive shaft section being, in the deactivated state of the corresponding clutch mechanism, free to rotate in any of its directions of rotation, characterized in that the driving shaft of the driving means driving the rotation of the driven member extends parallel to the longitudinal axis of the wheel drive shaft or to the longitudinal axis of each of the shaft sections; wheel drive.
    [0002] This arrangement surprisingly results in an improved efficiency of at least 30% with respect to an arrangement where the wheel shaft extends perpendicular to the drive shaft. In addition, it results in reduced size of the transmission. Preferably, the housing has at least two housing members 20 connectable by a joint plane and the wheel drive shaft or each of the wheel drive shaft sections extends transversely, preferably orthogonally, to said joint plane in the assembled state of the two housing elements. This arrangement again contributes to the simplicity and compactness of the transmission, without impairing its performance. Preferably, the driving means driving the rotation of the driven member comprises a gear mechanism disposed between the motor shaft and the driven member, the gear mechanism with which the driven member is permanently engaged. by meshing comprising a plurality of 3036450 4 pinions each rotatably mounted about an axis extending parallel to the drive shaft and to the wheel drive shaft or to each of the wheel drive shaft sections . Preferably, the plurality of pinions comprises at least two double pinions, said double pinions each comprising two teeth of different diameter, said double pinions preferably being identical from one pinion to another. This results in a simplicity of the transmission. Preferably, each double gear comprises, mounted rotatably and coaxially disposed, a toothed wheel adapted to form the first tooth of the pinion and a ribbed tube capable of forming the second toothing of the pinion, said double pinions being offset axially for allow said double pinion said downstream meshed with the driven member to engage by its gear with the ribbed tube of the double pinion said upstream positioned relative to the downstream pinion, closer to the motor shaft. This arrangement makes it possible to reduce the bulk of the assembly, without impairing its simplicity. Preferably, each double gear is provided, inside its gear wheel, with an annular housing, and a rolling member is housed in the so-called upstream double pinion positioned closest to the motor shaft.
    [0003] Preferably, each double gear is internally provided with at least one longitudinal groove, each groove being able to form a lubricant reserve. Preferably, the driving means driving the rotation of the driven member comprise, disposed between the gear mechanism and the drive shaft, an epicyclic gear train comprising a planet carrier to which the rotational movement of the shaft motor is capable of being transmitted, the planet carrier of the epicyclic gear train being mounted to rotate with a pinion of the gear mechanism, this pinion and the planet carrier forming a rotatable assembly 3036450 rotated and guided in rotation with the inside the housing, by a mechanical bearing, this bearing comprising an inner ring within which said assembly is housed at least partially, and an outer ring surrounding the inner ring, said inner and outer rings being mounted coaxial rings free in rotation relative to each other, the outer ring being fixedly mounted inside the housing. With this arrangement, it results in a simplicity of assembly associated with a high accuracy of the rotation guidance. Preferably, the or each clutch mechanism comprises a clutch plate rotatably mounted on the wheel drive shaft or on the associated wheel drive shaft section, and to which the movement of rotation of the driven member is adapted to be transmitted, a workpiece carried by, and integral in rotation with the wheel drive shaft or the associated wheel drive shaft section and a brake of said plate of permanent action clutch on the angular velocity of said platen, said brake being threaded onto the wheel drive shaft or the wheel drive shaft section associated with said platen. Again, this arrangement of the brake threaded on the shaft or on a shaft section allows easy mounting of the transmission. Preferably, said clutch plate is mounted axially movable in the direction of a closer and a spacing of the driven member and is disposed, in the activated state, away from the driven member and engaged with the part carried by, and integral in rotation with the shaft or the wheel drive shaft section, and, in the deactivated state, close to the driven and uncoupled member of the part carried by, and integral in rotation with the shaft or the wheel drive shaft section. Preferably, the brake is an active friction brake member by permanent contact contact on the outer peripheral edge, also called edge or slice, of the clutch plate. Preferably, the brake of the or each clutch mechanism comprises two spring blades extending along the wheel drive shaft or the wheel drive shaft section associated with said mechanism. a clutch and a connecting region of said blades spring together, said spring blades being rotatably mounted about the shaft or the wheel drive shaft section and, preferably, diametrically opposed by relative to the drive shaft or to said wheel drive shaft section and said connecting zone, disposed at or near one end of the leaf spring, being provided with a through hole to allow threading said brake onto the wheel drive shaft or the wheel drive shaft section associated with said clutch plate. Preferably, said housing, which has at least two housing elements assembled by a joint plane and delimiting in the assembled state a cavity, comprises means for sealing said cavity extending at the joint plane. surrounding said cavity, and means for holding the housing members against one another by snapping. Thus, during assembly, this results in simplification, because the operator does not have to keep the housing elements applied against each other during the setting phase of the adhesive, when the sealing means of the cavity are bonding means for bonding said housing elements. In a first embodiment of the invention, the adhesive bonding means comprise a so-called main glue-receiving groove, this peripheral main groove surrounding said cavity and being disposed between two said auxiliary grooves each doubling the main groove to the assembled state of said housing members. Thanks to this arrangement, the excess glue disposed in the main groove can flow towards one and / or the other of the auxiliary grooves. Thus, thanks to the external auxiliary groove, the housing does not externally show glue burr, and thanks to the internal auxiliary groove, any glue creep in direction of the interior of the housing, with the risk of interfering on mechanical parts housed inside the housing is avoided. In a second embodiment of the invention, the bonding means comprise a so-called main glue-receiving groove surrounding said cavity, and at least one auxiliary groove doubling the main groove in the assembled state of said housing elements. , said peripheral main groove comprising a female element, such as a groove, carried by a housing element, this female element being arranged facing a male element, such as a rib, carried by the other housing element in the assembled state of said housing members with the male member fitting at least partially in the female element in the assembled state of said housing members. With this arrangement, it increases the bonding surfaces and a baffle is formed, which reinforces the tightness of the closure plane of the housing. Preferably, the means for holding the housing members snugly against each other comprises a plurality of lugs disposed around one of the housing members and a plurality of recessed slots disposed on the housing. around the other housing element to form a plurality of loops, each lug being adapted to fit into a loop in the state pressed against each other by their joint plane of the housing elements. This results in a simplicity of assembly. The invention also relates to a self-propelled machine with driver, preferably walking, such as lawn mower, equipped with a transmission of the aforementioned type. The invention will be better understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which: FIG. 1 represents an overall view of a rolling machine equipped with a transmission conforming to FIG. the invention. FIG. 2 represents a perspective view of a transmission box according to the invention. - Figure 3A shows an exploded view of the elements constituting a transmission according to the invention. Figure 3B shows a partial exploded view of the elements mounted on the drive shaft of the wheels. - Figure 4 shows a sectional view of a transmission according to the invention, with the shaft made of two shaft sections. - Figure 5 shows a sectional view of a transmission according to the invention, with the shaft made in one piece. - Figure 6 shows a perspective view of the housing elements in the unassembled state. - Figures 7 and 8 each show a detail view of the snap-fastening means. Figure 9 shows a detail view of one embodiment of the bonding means. - Figure 10 shows a detail view of another embodiment of the bonding connection means. - Figure 11 shows a perspective view of a brake. Figure 12 shows a detail view of a brake in position on the shaft. - Figure 13 shows a sectional view of the connection between epicyclic gear and gear mechanism. FIG. 14 represents a perspective view of FIG. 13. FIG. 15 represents an exploded view of the elements constituting it of the connection between the epicyclic gear train and the gear mechanism. - Figure 16 shows a perspective view of a double pinion. Fig. 17 shows a view taken from one end of a double gear. As mentioned above, the transmission object of the invention is more particularly intended to apply to a machine 1 rolling, including walking conductor. Figure 1 shows the application of such a transmission to a lawn mower. This lawn mower comprises a rolling chassis, the rear wheels of the chassis being shown at 7A, 7B in the figures. The transmission comprises a stationary housing 2 carried by said rolling chassis of the machine. This housing 2, preferably made of synthetic material, is formed of two elements 9 or half-shells assembled by a joint plane 10. This housing 2 at least partially houses means 3 driving motors, a rotary driven member 5 formed here by a gear wheel, in permanent engagement with the means 3 driving motors, means 4 for driving the wheels 7A, 7B of the machine , these wheel drive means 4 comprising a wheel drive shaft 6 made in one piece or at least two coaxial wheel drive shaft sections 6A, 6B, each capable of driving a wheel 7A. 7B of the same pair of wheels of the machine and, arranged between the wheel drive shaft 6 or each of the wheel drive shaft sections 6A, 6B and the driven member 5, a mechanism 8 25 clutch. The motor drive means 3 comprise a motor 31 equipped with a motor shaft 32 and, arranged between the motor shaft 32 and the toothed wheel 5, in permanent engagement with said toothed wheel, a gear mechanism 14 and, between the motor shaft 32 and the gear mechanism 14, an epicyclic gear train 11, these elements permitting transmission of the rotational movement of the motor shaft 32 to said toothed wheel. It should be noted that the motor shaft 32 can be rotated in one direction or in two opposite directions. The gear mechanism 14 disposed between the motor shaft 32 and the gear wheel 5 and with which the gear wheel 5 is permanently meshing comprises a plurality of pinions 141 each rotatably mounted about an axis extending parallel to the motor shaft 32 and the wheel drive shaft 6 or to each of the wheel drive shaft sections 6A, 6B. This plurality of pinions 141 comprises a pinion 141 rotatably mounted to the planet carrier 110 of the epicyclic gear train which will be described below and two pinions 141 double each comprising two sets of teeth 1411, 1412 of different diameter. Said double sprockets 141 are identical from one sprocket to another. Each double pinion 141 is carried by a support pin 142 which extends between two housing members. Said support pins 142 are identical from one double pinion 141 to another, for ease of manufacture. Each double pinion 141 comprises, rotatably mounted and arranged coaxially, a toothed wheel 1411 capable of forming the first toothing of pinion 141 and a ribbed tube 1412 capable of forming the second gear of the pinion, said double pinions 141 being offset. axially to allow said double pinion 141 said downstream meshing with the member 5 to come into engagement with its gear 1411 toothed with the tube 1412 ribbed pinion 141 said double upstream positioned relative to the downstream pinion, 3036450 11 nearest of the motor shaft 32. Each double pinion 141 is provided, inside its toothed wheel 1411, with an annular housing 1413, and a rolling member 1414 is housed in the upstream said double pinion 141 positioned closest to the motor shaft 32.
    [0004] This upstream double pinion 141 engages the pinion gear 141 mounted to rotate with the planet carrier 110 of the epicyclic gear train 11 which will be described below. Each double pinion 141 is internally provided with at least one longitudinal groove 1415, here in this case five longitudinal grooves. Each groove 1415 is able to form a supply of lubricant. Each longitudinal groove has a curved profile in the shape of a flower petal from an end of said groove. The epicyclic gear 11 disposed between the gear mechanism 14 and the motor shaft 32 in turn comprises an internal sun gear 111 mounted to rotate with the motor shaft 32, an outer gear 112 called a ring gear fixed to the housing 2, satellites 113 meshing with the planetaries, and a planet carrier 110 to which the rotational movement of the motor shaft 32 is transmitted via the epicyclic gear 11. This planet carrier 110 itself forms, with the pinion 141 of the gear mechanism 20, a rotary assembly carried and guided in rotation, inside the housing, by a mechanical bearing 12. This bearing 12 comprises an inner ring 121, within which said assembly is housed at least partially, and an outer ring 122 surrounding the inner ring 121.
    [0005] The inner and outer rings are coaxial rings mounted free to rotate relative to one another. The ring 122 is fixedly mounted inside the housing 2. Rolling members such as balls, needles or the like, are arranged between the inner and outer rings to allow free rotation of said rings relative to each other. to the other. The inner ring of the 5 bearing is, for its assembly, integral in rotation with the planet carrier 110 and the pinion 141, sandwiched between the planet carrier 110 and the pinion 141. For this purpose, the planet carrier 110 and the pinion 141 each have an inner part of the inner race of the bearing, inserted into the ring, an outer part of the inner race of the bearing and, at the interface between the inner and outer parts, a shoulder. The inner ring 121 of the bearing 12, which comprises an inner circumferential face, an outer circumferential face and two lateral faces interconnecting the circumferential faces, is sandwiched between the planet carrier 110 and the pinion 141, at its level. lateral faces, said lateral faces being sandwiched between the shoulders of the planet carrier 110 and the pinion 141. The planet carrier 110 and the pinion 141 are, in addition, for a rotationally fixed mounting, connected to each other by a connecting member, in this case a screw 114, and have complementary geometric shapes. The rotational drive of the inner sun gear rotates the satellites 113 in meshing engagement with the inner circumferential toothing of the ring gear forming the outer sun gear 112. As this ring is a stationary ring fixed to the housing, the satellites 113, each strung on one axis of the planet carrier, tend to drive the planet carrier 110 in rotation, which in turn rotates the pinion 141 of which it is integral. .
    [0006] This rotational movement is transmitted by the gear mechanism 14 to the toothed wheel, which is rotatably mounted on the shaft 6 for driving the wheels of the machine. The drive shaft of the wheels of the machine may be made in one piece, as shown in FIG. 5, or in the form of two coaxial shaft sections 6A, 6B, each capable of driving a wheel 7A. 7B of the same pair of wheels of the machine, as shown in Figure 4. In this case, these shaft sections 6A, 6B are maintained aligned by a connecting pin 6C on which they are fitted, these sections 6A, 6B of shaft 10 being able, in the aligned state, to be driven by a relative displacement in rotation. Note that the longitudinal axis of the wheel drive shaft 6 or the longitudinal axis of each of the wheel drive shaft sections 6A, 6B extends parallel to the driving shaft 32 of the driving means 3 motors driving in rotation of the toothed wheel 5.
    [0007] The two embodiments of the wheel drive shaft described above simply differ in the number of clutch mechanisms required at said shaft, but the operation is similar. It will therefore be described here only an operation with a shaft in the form of two shaft sections 6A, 6B, each shaft section being equipped with a clutch mechanism 8. Each clutch mechanism 8 is an automatic clutch activated by rotating the toothed wheel in a first direction of rotation called forward, and deactivated by the forward rotation drive of the section 6A, 6B of the clutch. a wheel drive shaft with which it co-operates when the rotational speed of said wheel drive shaft section 6A, 6B is greater than the rotational speed of the toothed wheel.
    [0008] 3036450 14 This wheel drive section 6A, 6B is, in the deactivated state of the corresponding clutch mechanism 8, free to rotate in any of its directions of rotation. One of the clutch mechanisms is capable of transmitting the transmission of the toothed wheel 5 movement to the wheel drive shaft section 6A, the other the transmission of the toothed wheel movement to the section. 6B wheel drive shaft. Thus, the toothed wheel disposed coaxial with the wheel drive shaft sections is disposed between the two clutch mechanisms 8, each clutch mechanism 8 being carried by a wheel drive shaft section. Each clutch mechanism 8 comprises a clutch plate 81 mounted free to rotate, on the wheel drive shaft 6 or on the associated wheel drive shaft section 6A, 6B, a part 82 carried by and rotatably connected to the wheel drive shaft 6 or the associated wheel drive shaft section 6A, 6B and a brake 83 of said permanent-acting clutch plate 81 to the angular velocity of said plate 81. Said clutch plate 81, to which the rotational movement of the driven member 5 is able to be transmitted, is mounted axially movable in the direction of a 20 approximation and a spacing of the driven member 5 and is disposed, in the activated state, away from the driven member 5 and engaged with the workpiece 82 carried by and integral in rotation with the shaft 6 or the shaft drive section 6A, 6B wheel, and, in the deactivated state, close to the member 5 led and uncoupled from the piece 82 carried by, and solidai in rotation of the shaft 6 or the wheel drive shaft section 6A, 6B and said brake 83 is threaded onto the wheel drive shaft 6 or the shaft section 6A, 6B. associated with said platen 81. In the activated state, the clutch plate 81 is disposed away from the toothed wheel, i.e. away from the toothed wheel by a distance greater than 3036450. 15 that separates it from the toothed wheel in the deactivated state. To enable activation and deactivation of the clutch means, the clutch plate 81 and the part 82 of each clutch mechanism, and the toothed wheel are provided on at least one of their faces with ramps. .
    [0009] The ramps 18 of one face of the plate 81 cooperate, during the activation phase, with the ramps 20 of a face of the toothed wheel 5, for axial displacement of the clutch plate 81 in a first direction of rotation. spacing the toothed wheel 5 and securing the plate 81 with the part 82 carried by and integral in rotation with the wheel drive shaft section 6A, 6B which cooperates with the clutch mechanism. The ramps 21 of the other face of the plate 81 cooperate, during the deactivation phase, with ramps 22 of the part 82 carried by and integral in rotation with the wheel drive shaft section 6A, 6B, for cause, by axial displacement in the opposite direction of said clutch plate 81, the freewheeling of the wheel drive shaft section 6A, 6B with which the clutch mechanism is able to cooperate. The ramps of the toothed wheel and the clutch plate 81 are here formed by one of the flanks of crenellations or teeth projecting from said faces. In the example shown in FIG. 3B, the toothed wheel constituting the driven member 5 has, on each of its faces, a ring of teeth with each tooth having two flanks parallel to the axis of rotation of the shaft. wheel drive, each sidewall being connected to the top of the tooth by a cutaway. The clutch plate 81 has, on its side facing the driven member, a ring of teeth with each tooth having a flank parallel to the axis of rotation of the wheel drive shaft sections and a flank. inclined at an angle with said axis of rotation.
    [0010] The inclined flank is formed by the ramp shown at 18 in the figures. This flank is the flank requested during forward drive of the member 5 driven by bearing contact with a tooth of the member 5 to cause an axial displacement of the clutch plate in the direction of a spacing 5 the organ 5 led. The other face of the plate, that is to say that facing the piece 82 integral in rotation with the wheel drive shaft section, which is here formed by a wheel with ramps, comprises, of the same a crown of flanking teeth, one right and one inclined.
    [0011] The piece 82 or wheel integral with the rotation of the wheel drive shaft section also comprises a ring of teeth whose each tooth has one of its inclined sides and the other right side. For each tooth of the plate 81 and the workpiece 82, a right side of a tooth of the plate cooperates with a right side of a tooth of the workpiece 82 rotatably connected to the wheel drive shaft section. drive forward of the driven member 5, in the state away from the clutch plate 81 of the member 5 led. This bearing contact cooperation continues as long as the rotational driving speed of the wheel drive shaft section is less than the speed of the driven member. When the wheel rotation drive speed becomes greater than the rotational speed of the driven member, for example when cornering with the wheel of the shaft forming the outer wheel in said bend, the section drive shaft and its part 82 become driven, so that each tooth of the part 82 cooperates at its ramp inclined flank 22 by bearing contact with the inclined flank forming ramp 21 of the teeth of the plate. clutch, to cause an axial displacement of the clutch plate in the direction of a rapprochement of the driven member 5, to a disengaged position of said ramps corresponding to the deactivated state of the clutch mechanism.
    [0012] In order to allow optimal operation of this clutch mechanism, the clutch plate 81 is braked with the aid of a brake 83. The brake 83 is an active friction brake element by permanent contact on the outer peripheral edge, also called the edge or slice, of the clutch plate 81. The brake 83 of the or each clutch mechanism 8 comprises two spring blades 831 extending along the wheel drive shaft 6 or section 6A; 6B of the wheel drive shaft associated with said clutch mechanism 8 and a connecting zone 832 of said blades 831 spring between them. Said spring blades 831 are fixedly mounted in rotation around the shaft 6 or the wheel drive shaft section 6A, 6B and diametrically opposite with respect to the drive shaft 6 or section 6A, 6B of the wheel drive shaft and said connecting zone 832, disposed at or near one of the ends of the spring blades 831, is provided with a through-orifice 833 to allow threading of said brake 83 on the wheel drive shaft 6 or on the wheel drive shaft section 6A, 6B associated with said clutch plate 81. In other words, the platen brake is rotatably mounted about the wheel drive shaft section associated with said platen. The plate brake has the general shape of a U with the legs of the U extending along the wheel drive shaft section associated with said plate and the U core having a through hole for allowing said brake to be threaded onto the wheel drive shaft section associated with said platen. The plateau brake is formed of a blank folded and cut. This results in a simplicity of manufacture of said brake. The spring blades are, for their rotational fixed mounting, curved at their free end to form a tongue adapted to slide in an axial groove 19 of the housing.
    [0013] All the means described above are at least partially housed inside the housing 2, as mentioned above. The housing 2 has at least two housing elements 9 assembled by a joint plane 10 and the wheel drive shaft 6 or each of the wheel drive shaft sections 6A, 6B extends transversely, from preferably orthogonally, to said joint plane 10 in the assembled state of the two housing elements 9. Each shaft section therefore passes through a housing element 9 at the bottom of the half-shell formed by said housing element. This housing 2, which defines in the assembled state of said elements 9 a cavity 13, comprises means 15 for sealing said cavity 13 extending at the level of the joint plane 10, surrounding said cavity 13 and means 16 holding the housing elements 9 against one another by snapping. In the example shown in FIGS. 5, 9, 10, the sealing means 15 of said cavity are means 16 for bonding said housing elements 9 by gluing. Alternatively or additionally, and in a non-preferred manner, these sealing means could also have been made by a seal fitting into a groove formed at the level of the joint plane, this seal surrounding said cavity 13 as shown In FIG. 6, when the bonding connection means 16 are connection means 16 as shown in FIG. 10, the bonding means 16 comprise a so-called principal glue-receiving groove 161. This main peripheral groove 161 surrounds said cavity 13 and is disposed between two said auxiliary grooves 162 each doubling the main groove 161 in the assembled state of said housing elements 9. The main groove is formed by two peripheral grooves each disposed on a housing element, extending around the cavity, said grooves being positioned opposite one another, in the assembled state of the elements of the housing. housing. It is the same auxiliary throats. Thus, when assembling the housing members by gluing, glue is deposited in one or each of the grooves of the main groove, and the housing elements are brought together. If an excess of glue is deposited in the main groove, this excess flows towards the auxiliary grooves, which prevent one glue penetration inside the housing, the other glue burrs outside the housing .
    [0014] When the bonding means 16 are connection means 16 as shown in FIG. 9, the bonding means 16 comprise a so-called principal adhesive receiving groove 163 surrounding said cavity 13, and at least one groove 164. auxiliary doubling the main groove 163 in the assembled state of said housing elements 9. Said main peripheral groove 163 comprises a female element 1631, such as a groove, carried by a housing element 9. This female element 1631 is arranged opposite a male element 1632, such as a rib, carried by the other element 9 of the housing in the assembled state of said housing elements 9 with the male element 1632 fitting into the less partially in the assembled female element 1631 of said housing elements 9. The auxiliary groove or grooves may be formed, for example, by a simple groove surrounding the cavity, and formed in at least one housing element. As mentioned above, the housing further comprises means 17 for holding the housing members against each other by snapping. In the example shown in FIGS. 6 to 8, the means 17 for holding the housing elements 9 against one another by snap-fastening comprise a plurality of lugs 172 disposed around the periphery of one of the elements 9. a housing and a plurality of recessed crenellations disposed around the periphery of the other housing element 9 to form a plurality of handles 171, each lug 172 being adapted to fit into a loop 171 in the applied state; against each other by their plane 10 of seal elements 9 housing. The loops 171 are elastically deformable and tend, on bringing the housing elements together, in contact with the lugs, to move away from the casing before coming closer to the casing to surround the lugs, once the lug has passed through the top of the casing. the handle. This snap-fit is maintained after removal of the glue, when positioning the housing elements against each other, in a position corresponding to the closed position 10 of the housing. This snap hold allows the operator to not have to keep the assembled housing elements, until the glue. It should be recalled that the terms "includes" or "including" do not exclude other elements or steps. 15
    权利要求:
    Claims (17)
    [0001]
    REVENDICATIONS1. Transmission for machine (1) rolling, preferably walking conductor, of the type comprising at least one housing (2), preferably stationary housing at least partially means (3) driving motors, a member (5) driven rotary, such a toothed wheel, in permanent engagement with means (3) driving motors driving in rotation of said member (5) driven, means (4) for driving the wheels (7A, 7B) of the same pair of wheels of the vehicle (1), said means (3) driving motors comprising a motor (31) equipped with a shaft (32) engine and said means (4) for driving the wheels comprising a shaft (6) of wheel drive made in one piece, or at least two coaxial wheel drive shaft sections (6A; 6B) each adapted to drive a wheel (7A; 7B) of the same pair of wheels of the gear, and disposed between the wheel drive shaft (6), or each of the wheel drive shaft sections (6A; 6B), and the driven member (5), a clutch mechanism (8), the or each clutch mechanism (8) being activated by the rotational drive of the member (5) driven in a first direction of rotation said forward drive, and deactivatable by rotating in the forward direction of the shaft (6) or section (6A; 6B) with which it cooperates, when the speed of rotation of the shaft (6) or of said wheel drive shaft section (6A; 6B) is greater than the speed of rotation. rotation of the driven member (5), the wheel drive shaft (6) or each wheel drive shaft section (6A; 6B) being, in the deactivated state of the mechanism (8) of corresponding clutch, free to rotate in any of its directions of rotation, characterized in that the shaft (32) motor means (3) driving motors driving in rotation of the member (5) led s extends parallel to the longitudinal axis of the wheel drive shaft (6) or to the longitudinal axis of each of the wheel drive shaft sections (6A; 6B).
    [0002]
    2. gear transmission (1) according to claim 1, 3036450 22 characterized in that the housing (2) has at least two housing elements (9) assembled by a plane (10) of joint and in that the shaft (6) wheel drive or each of the wheel drive shaft sections (6A; 6B) extends transversely, preferably orthogonally, to said joint plane (10) in the assembled state of the two elements. (9) housing.
    [0003]
    3. transmission for gear (1) according to one of the preceding claims, characterized in that the means (3) driving driving motors in rotation of the member (5) led comprise a mechanism (14) gearing disposed between the motor shaft (32) and the driven member (5), the gear mechanism (14) with which the driven member (5) is permanently engaged by meshing comprising a plurality of mounted gears (141). each rotating about an axis extending parallel to the motor shaft (32) and to the wheel drive shaft (6) or to each of the drive shaft sections (6A, 6B) wheel.
    [0004]
    4. gear transmission (1) according to claim 3, characterized in that the plurality of pinions (141) comprises at least two double gears (141), said pinions (141) double each comprising two sets of teeth (1411, 1412) of different diameter, said double gears (141) being preferably identical from one pinion to another.
    [0005]
    5. gear transmission (1) according to claim 4, characterized in that each double gear (141) comprises, rotatably mounted and arranged coaxially, a toothed wheel (1411) adapted to form the first gear of the pinion (141) and a ribbed tube (1412) adapted to form the second toothing of the pinion, said double gears (141) being offset axially to allow said double pinion (141) said downstream meshing with the member (5) led to engage by its gear (1411) toothed with the tube (1412) ribbed pinion (141) said double upstream positioned relative to the downstream gear, closer to the shaft (32) motor. 3036450 23
    [0006]
    6. gear transmission (1) according to claim 5, characterized in that each double pinion (141) is provided, within its toothed wheel (1411), with a housing (1413) annular, and in that that a member 5 (1414) bearing is housed in the pinion (141) said double upstream positioned closest to the shaft (32) motor.
    [0007]
    7. gear transmission (1) according to one of claims 4 to 6, characterized in that each double pinion (141) is internally provided 10 at least one groove (1415) longitudinal, each groove (1415) being fit to form a reserve of lubricant.
    [0008]
    8. Transmission for machine (1) according to one of claims 3 to 7, characterized in that the means (3) drive motors in rotation of the member (5) led comprise disposed between the mechanism ( 14) and the motor shaft (32), an epicyclic gear train (11) comprising a planet carrier (110) to which the rotational movement of the motor shaft (32) is adapted to be transmitted, the carrier satellites (110) of the epicyclic gear train being rotatably mounted to a pinion (141) of the gear mechanism (14), said pinion (141) and the planet carrier (110) forming a rotatable assembly carried and guided in rotation inside the housing, by a bearing (12) mechanical, the bearing (12) comprising an inner ring (121) within which said assembly is housed at least partially, and an outer ring (122). surrounding the inner ring (121), said inner (121) and outer (122) rings being coaxial rings. Ales mounted free in rotation relative to each other, the outer ring (122) being fixedly mounted inside the casing (2)
    [0009]
    9. Transmission for gear (1) according to one of the preceding claims, characterized in that the or each clutch mechanism (8) comprises a clutch plate (81) mounted free to rotate on the shaft ( 6) or on the associated wheel drive shaft section (6A; 6B), 3036450 24 and to which the rotational movement of the driven member (5) is transmittable, a workpiece (82) carried by and rotatably connected to the wheel drive shaft (6) or the associated wheel drive shaft section (6A; 6B) and a brake (83) of said platen (81). ) a permanent-action clutch on the angular velocity of said platen (81), said brake (83) being threaded onto the wheel drive shaft (6) or shaft section (6A; 6B); wheel drive associated with said platen (81).
    [0010]
    10. gear transmission (1) according to claim 9, characterized in that the brake (83) is an active friction braking member by permanent contact contact on the outer peripheral edge, also called edge or edge, of the plate (81) clutch.
    [0011]
    11. gear transmission (1) according to one of claims 9 or 10, characterized in that the brake (83) of the or each clutch mechanism (8) comprises two blades (831) spring extending the along the wheel drive shaft (6) or the wheel drive shaft section (6A; 6B) associated with said clutch mechanism (8) and an area (832) for connecting said blades ( 831) spring between them, said spring blades (831) being fixedly mounted in rotation about the shaft (6) or the wheel drive shaft section (6A; 6B) and preferably diametrically opposed to the drive shaft (6) or to said wheel drive shaft section (6A; 6B) and said connecting region (832) disposed at or adjacent to one end of the blades (831) exits, being provided with a through hole (833) for allowing said brake (83) to be threaded onto the wheel drive shaft (6) or the section ( 6A; 6B) associated with said clutch plate (81).
    [0012]
    12. gear transmission (1) according to one of the preceding claims, characterized in that said housing (2), which has at least two housing elements (9) assembled by a plane (10) of seal and delimiting at the assembled state a cavity (13) comprises means (15) for sealing said cavity (13) extending at the joint plane (10) surrounding said cavity (13), and means (17) for holding the housing elements (9) against one another by snap-fitting. 5
    [0013]
    13. gear transmission (1) according to claim 12, characterized in that the means (15) for sealing said cavity are means (16) bonding by bonding said housing elements (9).
    [0014]
    14. gear transmission (1) according to claim 13, characterized in that the means (16) bonding bonding comprise a groove (161) said main adhesive receiving, the groove (161) main peripheral surrounding said cavity (13) and being disposed between two said auxiliary grooves (162) each doubling the main groove (161) in the assembled state of said housing elements (9). 15
    [0015]
    15. transmission for gear (1) according to claim 13, characterized in that the means (16) bonding bonding comprise a groove (163) said principal of receiving glue surrounding said cavity (13), and at least one throat (164) auxiliary doubling the main groove (163) in the assembled state of said housing elements (9), said peripheral main groove (163) comprising a female element (1631), such as a groove, carried by an element (9) housing, this female element (1631) being arranged opposite a male element (1632), such as a rib, carried by the other housing element (9) in the assembled state of said elements ( 9) with the male member (1632) at least partially engaging the female member (1631) in the assembled state of said housing members (9).
    [0016]
    16. gear transmission (1) according to one of claims 12 to 15, characterized in that the means (17) for holding the housing elements (9) 30 against one another by snapping comprise a a plurality of lugs (172) disposed around one of the housing members (9) and a plurality of recessed crenets disposed around the periphery of the other housing member (9) to form a plurality of handles (171), each lug (172) being adapted to be inserted in a loop (171) in the state applied against each other by their plane (10) of seal elements (9) housing. 5
    [0017]
    17. Device (1) self-propelled driver, preferably walking, such as lawn mower, characterized in that it is equipped with a transmission according to one of claims 1 to 16.
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    同族专利:
    公开号 | 公开日
    FR3036450B1|2017-05-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2885656A1|2005-05-13|2006-11-17|France Reducteurs Sa Sa|Gearbox for e.g. self-powered lawnmower, has clutch engaging mechanisms arranged between drive wheel and two main drive shafts of wheels of rolling vehicle, where each mechanism cooperates with shafts to set wheels of vehicle in free wheel|
    EP1860340A1|2006-05-24|2007-11-28|HONDA MOTOR CO., Ltd.|Travel-driving mechanism for self-propelled working machine|
    DE102006036522A1|2006-07-28|2008-01-31|Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg|Shifting system `s drive unit for motor vehicle, has drive worm and worm gear with symmetrically designed hollow shaft in which insertion shaft is inserted, where insertion shaft is connected with output unit, which is designed as pinion|
    US20120097469A1|2009-07-13|2012-04-26|Changzhou Groundtools Co., Ltd.|Self-propelled electric mower|
    FR2995647A1|2012-09-20|2014-03-21|France Reducteurs|TRANSMISSION HOUSING AND EQUIPPED WITH SUCH TRANSMISSION HOUSING|
    FR3004771A1|2013-04-23|2014-10-24|France Reducteurs|TRANSMISSION FOR WHEELED DRIVER AND ROLLING MACHINE EQUIPPED WITH SUCH A TRANSMISSION|US10359108B1|2018-07-09|2019-07-23|Robert Bosch Mexico Sistemas Automotrices S.A. de C.V.|Gear housing including snap-fit connection between housing cover and housing container sidewall|
    WO2021144527A1|2020-01-17|2021-07-22|France Reducteurs|Transmission device, and self-propelled vehicle provided with such a transmission device|
    FR3106383A1|2020-01-17|2021-07-23|France Reducteurs|transmission box and its mounting method, and self-propelled machine equipped with such a transmission box|
    FR3106452A1|2020-01-17|2021-07-23|France Reducteurs|transmission device and self-propelled machine equipped with such a transmission device|
    法律状态:
    2016-05-20| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-25| PLSC| Search report ready|Effective date: 20161125 |
    2017-05-23| PLFP| Fee payment|Year of fee payment: 3 |
    2018-05-22| PLFP| Fee payment|Year of fee payment: 4 |
    2019-05-23| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-22| PLFP| Fee payment|Year of fee payment: 6 |
    2021-05-20| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1554467A|FR3036450B1|2015-05-19|2015-05-19|TRANSMISSION FOR WHEEL DRIVER OF WALKING PREFERENCE AND ROLLER EQUIPPED WITH SUCH TRANSMISSION|FR1554467A| FR3036450B1|2015-05-19|2015-05-19|TRANSMISSION FOR WHEEL DRIVER OF WALKING PREFERENCE AND ROLLER EQUIPPED WITH SUCH TRANSMISSION|
    CN201620600214.7U| CN205991157U|2015-05-19|2016-05-17|Mechanical component|
    US15/575,673| US11125313B2|2015-05-19|2016-05-17|Transmission box, method of closing same and running vehicle equipped with such a box|
    EP16727768.0A| EP3298298B1|2015-05-19|2016-05-17|Transmission gear box and method of closing same and vehicle equipped with such a transmission gear box|
    EP16730451.8A| EP3298299A1|2015-05-19|2016-05-17|Transmission box, method of closing same and running vehicle equipped with such a box|
    PCT/FR2016/051154| WO2016185127A1|2015-05-19|2016-05-17|Transmission, and running vehicle equipped with such a transmission|
    US15/575,595| US10746279B2|2015-05-19|2016-05-17|Transmission gear box and method of closing same and vehicle equipped with such a transmission gear box|
    PCT/FR2016/051155| WO2016185128A1|2015-05-19|2016-05-17|Transmission gear box and method of closing same and vehicle equipped with such a transmission gear box|
    US15/573,641| US10690230B2|2015-05-19|2016-05-17|Transmission, and running vehicle equipped with such a transmission|
    DE202016003125.3U| DE202016003125U1|2015-05-19|2016-05-17|Mechanical arrangement|
    CN201620600211.3U| CN205987727U|2015-05-19|2016-05-17|Travel the actuating device of machine and the traveling machine equipped with actuating device|
    EP16729026.1A| EP3298304B1|2015-05-19|2016-05-17|Transmission, and running vehicle equipped with such a transmission|
    PCT/FR2016/051153| WO2016185126A1|2015-05-19|2016-05-17|Transmission box, method of closing same and running vehicle equipped with such a box|
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