• 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:
    power transmission apparatus. It is an object of the present invention to provide a power transmission apparatus which can suppress rotational vibrations by suppressing rotation of the pressure member relative to the clutch member. in accordance with the present invention, there is provided a power transmission apparatus comprising a clutch housing rotatable together with an input member and mounted therein a plurality of drive side clutch discs; a clutch member mounted thereto a plurality of drive side clutch discs disposed between drive side clutch discs alternately therewith and connected to an output member; and a pressure member mounted on the clutch member movable axially with respect to the clutch member so that the drive side clutch discs and the driven side clutch discs are forced to be contacted by pressure and the contact force of pressure acting on them is released in accordance with the axial approach and separation of the pressure member from the clutch member in order to transmit a rotational drive force introduced from the input member to the output member or cut off the drive force rotational from the output member characterized in that the power transmission apparatus further comprises a slip suppression member for applying slip resistance to the pressure member when the pressure member is rotated relative to the clutch member.
    公开号:BR112014016210B1
    申请号:R112014016210-7
    申请日:2012-12-28
    公开日:2021-08-03
    发明作者:Kenichirou Isobe；Shigeki Kawashima；Shinji Furuhashi；Go Ando
    申请人:Kabushiki Kaisha F.C.C.；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention relates to a power transmission apparatus for arbitrarily transmitting or cutting the rotational drive power of an input member to or from an output member. DESCRIPTION OF PRIOR ART
    [002] In general, the power transmission apparatus for a motorcycle is intended to arbitrarily perform transmission or cut-off of the driving power of an engine to or from a transmission and a drive wheel and comprises an input member connected to one side of engine, an output member connected to a transmission and a drive wheel side, and a clutch member connected to the output member. The drive power can be transmitted by pressing contact of a plurality of drive side clutch discs and side driven clutch discs to each other or cut by releasing the pressure contact force acting on the side drive clutch discs. drive and side driven clutch discs .
    [003] More particularly, prior art power transmission apparatus, for example, Patent Document below comprises a clutch housing which can rotate together with an input member and mounted therein a plurality of clutch discs. drive, a plurality of driven side clutch discs alternately disposed between drive side clutch discs, a clutch member connected to an output member, and a pressure member mounted on the clutch member axially movably with respect to the clutch member to force the drive side clutch discs and the driven side clutch discs to be pressure contacted and with each other release the pressure contact force acting on them according to axial movement with respect to the clutch member, and is constructed so as to transmit or cut the drive power introduced to the input member to or from the clutch member. A pressure contact output with the drive side clutch discs and the driven side clutch discs against each other or release a pressure contact force acting on them. PRIOR ART DOCUMENTS PATENT DOCUMENT
    [004] Patent Document 1: JP 2010-223296 DISCLOSURE OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION
    [005] However, in prior art power transmission apparatus, the pressure member would sometimes be rotated relative to the clutch member by vibrations transmitted from an engine, for example, under a condition of a vehicle stopped in a neutral position of a transmission. That is, as usual, rotational vibration of the pressure member is not impeded, although axial vibration is contained using clutch springs, etc. Thus, it is a fear that structural components of the power transmission device would interfere with each other and cause abnormal noise or disturbance feeling in operation.
    [006] It is therefore an object of the present invention to provide a power transmission apparatus that can suppress rotational vibrations by suppressing rotation of the pressure member relative to the clutch member. MEANS TO ACHIEVE THE GOAL
    [007] To achieve the aim of the present invention above, there is provided, according to claim 1, a power transmission apparatus comprising a clutch housing that can rotate together with an input member and mounted therein a plurality of discs of drive side clutch; a clutch member mounted thereto a plurality of drive side clutch discs disposed between drive side clutch discs alternately therewith and connected to an output member; and a pressure member mounted on the clutch member axially movably with respect to the clutch member so that the drive side clutch discs and the driven side clutch discs are forced to be pressure contacted with each other and the pressure contact force acting on them is released in accordance with axial approach and separation of the pressure member from the clutch member in order to transmit a rotational drive force introduced to the input member to the output member or to cut the rotational drive power from the output member characterized in that the power transmission apparatus further comprises a slip suppression member to apply slip resistance to the pressure member when the pressure member is rotated relative to the member. of clutch.
    [008] A power transmission apparatus defined in claim 2 is that of claim 1, wherein the power transmission apparatus further comprises a pressure contact assist cam to increase the pressure contact force acting on the clutch discs side drive and side driven clutch discs by causing relative rotation of the pressure member and the clutch member and connecting them close to each other when a condition where the rotational drive force introduced to the input member can being transmitted to the output member is achieved, and a counter torque limiting cam to release the pressure contact force acting on the drive side clutch discs and the driven side clutch discs by causing relative rotation of the pressure member and the clutch member and separating them from each other when a rotational speed of the output member has exceeded that of the input member.
    [009] A power transmission apparatus as defined in claim 3 is that of claim 1 or 2, wherein the pressure member and the clutch member are mounted while being axially fitted together, and wherein the pressure suppression member slip is arranged on the mating surface of the pressure member or the clutch member.
    [010] A power transmission apparatus as defined in claim 4 is that of claim 1 or 2, wherein the slip suppression member is disposed on axially facing surface of the pressure member or the clutch member.
    [011] A power transmission apparatus defined in claim 5 is that of claim 1 or 2, wherein the power transmission apparatus further comprises a limiting member to prevent the pressure member from being separated from the clutch member by exceeding a predetermined distance, and wherein the slip suppression member is disposed on the pressure member so as to be able to slide on a surface of the restraining member. EFFECTS OF THE INVENTION
    [012] According to the present invention according to claim 1, since the power transmission apparatus comprises a slip suppression member(s) to apply slip resistance to the clutch member when the pressure member is rotated relative to the clutch member, it is possible to suppress rotational vibration of the pressing member by suppressing the rotation of the pressing member relative to the clutch member.
    [013] According to the present invention according to claim 2, since the power transmission apparatus comprises a pressure contact assist cam to increase the pressure contact force acting on the clutch discs on the side of drive and the clutch discs side actuated by causing relative rotation of the pressure member and the clutch member and connecting them close to each other when a condition where the rotational drive force introduced to the input member can be transmitted to the output member is reached, and a counter torque limiting cam to release the pressure contact force acting on the drive side clutch discs and the driven side clutch discs by causing relative rotation of the pressure member and the member of clutch and separating them from each other when a rotational speed of the output member has exceeded that of the input member, it is possible to prevent the pressure member from being rotationally vibrated due to transmission of vibration from an engine, etc. to the pressure member and therefore to prevent the vibration from being transmitted to a vehicle operating means such as a clutch lever etc.
    [014] According to the present invention according to claim 3, since the pressure member and the clutch member are assembled while being axially fitted to each other, and the slip suppression member is disposed on the surface of fitting the pressure member or the clutch member, it is possible to suppress the rotational vibration of the pressure member without adverse influence to the operability of the pressure member.
    [015] According to the present invention according to claim 4, since the slip suppression member is arranged on axially facing surface of the pressure member or clutch member, it is possible to generate the slip resistance under a condition in which the pressure member is closed to the clutch member and does not generate slip resistance under a condition in which the pressure member is axially separated from the clutch member.
    [016] According to the present invention according to claim 5, since the power transmission apparatus further comprises a limiting member to prevent the pressure member from being separated from the clutch member exceeding a predetermined distance, and the slip suppression members are arranged on the pressure member so that they can slide on a surface of the limiting member, it is possible to mount or replace the slip suppression members under a condition where the clutch member is the clutch member. pressure are fitted to each other. BRIEF DESCRIPTION OF THE DRAWINGS
    [017] [Figure 1] A longitudinal sectional view of a power transmission apparatus of a first embodiment of the present invention;
    [018] [Figure 2(a)] A plan view showing a clutch member of the power transmission apparatus of Figure 1;
    [019] [Figure 2(b)] A schematic view showing a first cam surface and a second cam surface of the clutch member;
    [020] [Figure 3(a)] A plan view showing a pressure member of the power transmission apparatus of Figure 1;
    [021] [Figure 3(b)] A schematic view showing a condition in which a slip suppression member is mounted;
    [022] [Figure 4] A schematic view showing an action of a pressure contact assist cam of the power transmission apparatus of Figure 1;
    [023] [Figure 5] A schematic view showing a counter torque limiting cam of the power transmission apparatus of Figure 1;
    [024] [Figure 6] A longitudinal sectional view of a power transmission apparatus of a second embodiment of the present invention;
    [025] [Figure 7] A longitudinal sectional view of a power transmission apparatus of a third embodiment of the present invention;
    [026] [Figure 8] A longitudinal sectional view of a power transmission apparatus of a fourth embodiment of the present invention; and
    [027] [Figure 9] A longitudinal sectional view of a power transmission apparatus of a fifth embodiment of the present invention. METHODS FOR CARRYING OUT THE INVENTION
    [028] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
    [029] A power transmission apparatus of a first embodiment of the present invention is mounted on a vehicle, such as a motorcycle, to arbitrarily transmit or cut off the driving power of an engine to or from a transmission or drive wheel. As shown in Figures 1 to 3, the power transmission apparatus mainly comprises a clutch housing 2 formed by die-casting in which a gear 1 as an input member is mounted, a clutch member 4 connected to a shaft 3, such as an output member, a pressure member 5 fitted to the clutch member 4 at its right side end, drive side clutch discs 6 mounted in the clutch housing 2, and side driven clutch discs 7 connected to the clutch member 4, a first and second cam side surfaces 4a, 4b of clutch member side formed on clutch member 4, first and second cam surfaces 5a, 5b of pressure member side formed on pressure member 5, a restraint member 10, and a slip suppression member 11. A reference character "S" denotes dampers and "N" denotes needle bearings.
    [030] Gear 1 can be rotated around shaft 3 by driving power (rotational power) transmitted from the motor and connected to clutch box 2 via "R" rivets, etc. The clutch housing 2 is formed as a cylindrical casing open at its right side end seen in Figure 1 and a plurality of drive side clutch discs 6 are mounted on the inner circumference of the clutch housing 2. Drive side clutch 6 comprises a substantially annular plate and is adapted to be engaged by spline with spline formed on the inner circumference of clutch housing 2 so as to be able to rotate together with clutch housing 2 and axially sliding (side directions left and right side seen in Figure 1) along it.
    [031] The clutch member 4 comprises a member to be disposed within the clutch housing 2 and is formed with a splined hole in its center to receive a splined end of the shaft 3. This allows the shaft 3 to be rotated together with the clutch member 4. The outer circumference of the clutch member 4 is formed with spline ( spline fitting portion 4c) in which the driven side clutch discs 7 are fitted.
    [032] More in detail, the spline ( spline fitting portion 4c) formed in the clutch member 4 is alternately disposed integrally formed projections and grooves on the outer circumference of the clutch member 4 substantially all around it so as to be engaged with the spline formed on the driven side clutch discs 7 so that the driven side clutch discs 7 can move axially along the spline of the clutch member 4, but cannot rotate with respect to the clutch member 4.
    [033] Drive side clutch discs 6 and drive side clutch discs 7 are alternately arranged to form a lamination and adapted to be pressure contacted and released from pressure contact force. That is, both clutch discs 6, 7 are allowed to be axially slid along the clutch housing 2 and the clutch member 4, respectively, and pressure contacted when they are pressed towards the left side direction in Figure 1 by the pressure member 5 so that the rotational driving force of the clutch box 2 can be transmitted to the shaft 3 through the clutch member 4. On the contrary, when the pressing force of the pressing member 5 is released, the force of pressure contact between clutch discs 6, 7 is also released and consequently the transmission of rotational force to shaft 3 is cut off.
    [034] The pressure member 5 is fitted to the clutch member 4 at the right side end (Figure 1) thereof and adapted to be moved axially in the left and right side directions in Figure 1 in relation to the clutch member 4 so as to contact pressure the drive side and driven side clutch discs 6, 7 and release the pressing force between them. More in detail, the pressure member 5 is normally urged in a left side direction (Figure 1) by clutch springs 8 and can be moved towards a right side direction (a direction separating from the clutch member 4 by actuating an operating means such as a clutch lever and projecting a push rod 9 extending axially within the shaft 3 towards a right-hand direction against force pushing from the clutch springs 8.
    [035] Therefore, the pressure contact force between the drive side clutch discs 6 and the drive side clutch discs 7 is released and thus the rotational drive force introduced to gear 1 and the housing. clutch 2 is cut without being transmitted to clutch member 4 and shaft 3 when pressure member 5 is returned to the right side direction. That is, the pressure member 5 is structured so that it can pressure contact the drive side clutch discs 6 and the driven side clutch discs 7 or release the pressure force between them according to the axial movement of the member pressure 5 with respect to clutch member 4.
    [036] As shown in Figures 2 and 3, the clutch member 4 is formed with a first cam surface 4a and a second cam surface 4b on the clutch member side, and the pressure member 5 is formed with a first cam surface 5a and a second cam surface 5b on the pressure member side. a pressure contact assist cam is formed by an oppositely disposed combination of the first clutch member side cam surface 4a and the first pressure member side cam surface 5a, and a counter torque limiting cam is formed of an oppositely disposed combination of the pressure member side second cam surface 4b and the second cam surface 5b.
    [037] The pressure contact assist cam works to increase the pressure contact force between the drive side clutch discs 6 and the drive side clutch discs 7 by forcing them to be closed to each other due to to the relative rotation of the pressure member 5 and the clutch member 4 when a condition where the rotational drive force introduced into the clutch housing (input member) 2 can be transmitted to the shaft (output member) 3 has been reached. That is, since the clutch member 4 rotates in an "a" direction with respect to the pressure member 5 as shown in Figure 4 when the condition where the rotational drive force is introduced into the clutch box (input member) 2 can be transmitted to the shaft (output member) 3 has been reached, the first cam surface 4a of the clutch member side is abutted against the first cam surface 5a of the pressure member side and therefore the member pressure 5 is moved in a "b" direction by cam action of these cam surfaces 4a, 5a and hence the pressure contact force between drive side clutch discs 6 and drive side clutch discs 7 is increased.
    [038] The counter torque limiting cam works to release the pressure contact force between the drive side clutch discs 6 and the drive side clutch discs 7 by forcing them to be separated from each other due to relative rotation of the pressure member 5 and the clutch member 4 when a condition in which the rotational speed of the shaft (output member) 3 exceeds that of the clutch housing (input member) 2 has been reached. That is, since the clutch member 4 rotates in a direction "c" with respect to the pressure member 5, as shown in Figure 5, when a condition where the rotational speed of the shaft (output member) 3 exceeds that of the clutch housing (input member) 2, the second cam surface 4b of the clutch member side is abutted against the second cam surface 5b of the pressing member side, and thus the pressing member 5 is moved to a "d" direction by cam action of these cam surfaces 4b, 5b and consequently the pressure contact force between the drive side clutch discs 6 and the driven side clutch discs 7 is released.
    [039] The limiting member 10 is formed by an annular member to prevent the pressure member 5 from being separated from the clutch member 4 exceeding a predetermined distance and connected to the clutch member 4 by means of a screw "B" in order to receive one end of each clutch spring 8 as shown in Figure 1. The other end of each clutch spring 8 is received by the pressure member 5 so as to urge the pressure member 5 to the clutch member 4.
    [040] According to this embodiment of the present invention, the pressure member 5 is mounted to the clutch member 4 with being axially mated to each other and the slip suppression members 11 are arranged on a mating surface "β " of the pressing member 5 not in an engaging surface "α" of the clutch member 4. More in detail, mounting recesses 5c are formed in the engaging surface "β" of the pressing member 5 at their predetermined positions as shown in Figure 3 and the slip suppression members 11 are press-fit into mounting recesses 5c.
    [041] The slip suppression members 11 are formed of rubber and function to apply slip resistance to the pressure member 5 when the pressure member 5 is rotated relative to the clutch member 4. slip suppression 11 slides on the mating surface "α" of the clutch member 4 and causes sliding resistance against the mating surface "α" when the pressing member 5 rotates relative to the clutch member 4. Although it is shown in this embodiment that the slip suppression members 11 are arranged on the engagement surface "β" of the pressure member 5, it is possible to arrange the slip suppression members 11 on the engagement surface "α" of the clutch member 4.
    [042] Next, a second embodiment of the present invention will be described. Similarly to the first mode, a power transmission apparatus of the second mode is mounted on vehicles such as a motorcycle, etc. to arbitrarily transmit or cut the drive power of an engine to or from a transmission or drive wheel. As shown in Figure 6, the power transmission apparatus mainly comprises a clutch housing 2 formed by die-casting in which a gear 1 as an input member is mounted, a clutch member 4 connected to a shaft 3, such as an output member, a pressure member 5, drive side clutch discs 6 and side driven clutch discs 7, a limiting member 10, and a slip suppression member 12.
    [043] Similar to the first modality, the power transmission apparatus of this modality is formed by a first cam surface 4a on the clutch member side and a first cam surface 5a on the pressure member side forming a cam of pressure contact assistance, and a second cam surface 4b of clutch member side and a second cam surface 5b of pressure member side forming a counter torque limiting cam respectively. The same reference numbers are used to designate the same components as those used in the first modality and their detailed description will be omitted.
    [044] According to this embodiment of the present invention, the slip suppression member 12 is disposed on the engagement surface "β" of the pressure member 5 and not on the engagement surface "α" of the clutch member 4. More on detail, a mounting groove 5d is formed in the mating surface "β" of the pressure member 5 therealong as shown in Figure 6 and the slip suppression member 12 is snapped into the mounting groove 5d
    [045] The slip suppression member 12 is formed by an annular sealing member (e.g. sealing ring, etc.) and functions to apply slip resistance to the pressure member 5 when the pressure member 5 is rotated about relative to the clutch member 4. That is, the slip suppression member 12 slides on the mating surface "α" of the clutch member 4 and causes sliding resistance against the mating surface "α" when the pressing member 5 rotates with respect to the clutch member 4. Although it is shown in this embodiment that the slip suppression member 12 is disposed on the engagement surface "β" of the pressure member 5, it is possible to arrange the slip suppression member 12 on the engagement surface "α" of clutch member 4.
    [046] Next, a third embodiment of the present invention will be described. As with the previous arrangements, a power transmission apparatus of this variant is mounted on vehicles such as a motorcycle etc. to arbitrarily transmit or cut off the driving power of an engine to or from a transmission or drive wheel. As shown in Figure 7, the power transmission apparatus mainly comprises a clutch housing 2 formed by die-casting in which a gear 1 as an input member is mounted, a clutch member 4 connected to a shaft 3 such as a output member, a pressure member 5, drive side clutch discs 6 and side driven clutch discs 7, a limiting member 10, and a slip suppression member 13.
    [047] Similar to the first modality, the power transmission apparatus of this modality is formed by a first cam surface 4a on the clutch member side and a first cam surface 5a on the pressure member side forming a cam of pressure contact assist, and a second cam surface 4b of clutch member side and a second cam surface 5b of pressure member side forming a counter torque limiting cam respectively. The same reference numbers are used to designate the same components as those used in the first modality and their detailed description will be omitted.
    [048] According to this embodiment of the present invention, a slip suppression member 13 is disposed on the engagement surface "β" of the pressure member 5 and not on the engagement surface "α" of the clutch member 4. More on detail, the slip suppression member 13 is mounted on the mating surface "β" of the pressure member 5 therealong, for example, by adhesion as shown in Figure 7.
    [049] The slip suppression member 13 is formed by a friction sheet element and functions to apply slip resistance to the push member 5 when the push member 5 is rotated relative to the clutch member 4. , the slip suppression element 13 slides on the engagement surface "α" of the clutch member 4 and causes sliding resistance against the engagement surface "α" when the pressing member 5 rotates relative to the clutch member 4. it is shown in this embodiment that the slip suppression element 13 is arranged on the engaging surface "β" of the pressure member 5, it is possible to arrange the slip suppression member 13 on the engaging surface "α" of the clutch member 4.
    [050] According to the first to third embodiments of the present invention, as they are provided with slip suppression members 11 to 13 applying slip resistance to the pressure member 5 when the pressure member 5 is rotated relative to to the clutch member 4, it is possible to suppress the vibration of the pressing member 5 by suppressing the rotation of the pressing member 5 relative to the clutch member 4. More particularly according to the present invention, since the transmission apparatus power comprises the pressure contact assist cam and the counter torque limiting cam, it is possible to prevent the pressure member 5 from being rotationally vibrated due to the transmission of vibration from a motor, etc., to the pressure member and therefore , to prevent the vibration from being transmitted to a vehicle operating means such as a clutch lever etc.
    [051] Furthermore, according to the first to third embodiments of the present invention, since the pressure member 5 and the clutch member 4 are assembled with being axially fitted to each other, and the slip suppression members 11 to 13 are arranged on the mating surface α or β of the pressure member 5 or the clutch member 4, it is possible to avoid generating other strengths (eg compressive strength, etc.) in addition to the slip resistance of the suppression members 11 to 13 and thus suppress the rotational vibration of the pressure member 5 without adverse influence to the operability of the pressure member 5.
    [052] Then, a fourth embodiment of the present invention will be described. As with the previous arrangements, a power transmission apparatus of this variant is mounted on vehicles such as a motorcycle etc. to arbitrarily transmit or cut off the driving power of an engine to or from a transmission or drive wheel. As shown in Figure 8, the power transmission apparatus mainly comprises a clutch housing 2 formed by die-casting in which a gear 1 as an input member is mounted, a clutch member 4 connected to a shaft 3, such as an output member, a pressure member 5, drive side clutch discs 6 and side driven clutch discs 7, a limiting member 10, and a slip suppression member 14.
    [053] Similar to the first modality, the power transmission apparatus of this modality is formed by a first cam surface 4a on the clutch member side and a first cam surface 5a on the pressure member side forming a cam of pressure contact assistance, and a second cam surface 4b of clutch member side and a second cam surface 5b of pressure member side forming a counter torque limiting cam respectively. The same reference numbers are used to designate the same components as those used in the first modality and their detailed description will be omitted.
    [054] According to this embodiment of the present invention, a slip suppression member 14 is disposed on axially facing surface of the pressure member 5 or the clutch member 4 (surfaces of the pressure member 5 and the clutch member 4 axially facing each other). More in detail, an annular mounting groove 4e is formed in the end surface of the clutch member 4 axially facing the pressure member 5 (upper end face of the spline engagement portion 4c and the annular slip suppression member 14 is press-fit into the 4e ring mounting groove.
    [055] The slip suppression member 14 is formed from an annular sealing member (e.g. sealing ring, etc.) and functions to apply slip resistance to the pressure member 5 when the pressure member 5 is rotated about. relation to the clutch member 4. That is, the slip suppression member 14 slides on its abutment surface of the pressure member 5 and causes sliding resistance against the abutment surface of the pressure member 5 when the pressure member 5 rotates. with respect to the clutch member 4. Although it is shown in this embodiment (Figure 8) that the slip suppression member 14 is disposed on the end surface of the clutch member 4, it is possible to arrange the slip suppression member 14 on the facing surface. axially of the pressure member 5.
    [056] According to this embodiment of the present invention, since the power transmission apparatus is provided with slip suppression member 14 applying slip resistance to pressure member 5 when pressure member 5 is rotated relative to to the clutch member 4, it is possible to suppress the vibration of the pressing member 5 by suppressing the rotation of the pressing member 5 relative to the clutch member 4. More particularly according to the present invention, since the slip suppression member 14 is disposed on axially facing surface of the pressure member 5 or the clutch member 4, it is possible to generate the slip resistance under a condition where the pressure member 5 is closed to the clutch member 4 and not to generate the resistance of slippage under a condition where the pressure member 5 is axially separated from the clutch member 4.
    [057] Next, a fifth embodiment of the present invention will be described. As with the previous arrangements, a power transmission apparatus of this variant is mounted on vehicles such as a motorcycle etc. to arbitrarily transmit or cut off the driving power of an engine to or from a transmission or drive wheel. As shown in Figure 9, the power transmission apparatus mainly comprises a clutch housing 2 formed by die-casting in which a gear 1 as an input member is mounted, a clutch member 4 connected to a shaft 3, such as an output member, a pressure member 5, drive side clutch discs 6 and drive side clutch discs 7, a limiting member 10, and a slip suppression member 15.
    [058] Similarly to the first modality, the power transmission apparatus of this modality is formed by a first cam surface 4a on the clutch member side and a first cam surface 5a on the pressure member side forming a cam of pressure contact assistance, and a second cam surface 4b of clutch member side and a second cam surface 5b of pressure member side forming a counter torque limiting cam respectively. The same reference numbers are used to designate the same components as those used in the first modality and their detailed description will be omitted.
    [059] According to this embodiment of the present invention, the slip suppression members 15 are arranged on the pressure member 5 so as to slide on a surface of the limiting member 10. More in detail, as shown in Figure 9, recesses mounts 5f are formed on the end surface of the pressure member 5 axially facing the surface of the limiting member 10 mounted on the clutch member 4 and the slip suppression members 15 are press-fitted into the mounting recesses 5f. The slip-suppression members 15 are formed from block-type rubber members (similar to the slip-suppression members 11) and function to apply slip resistance to the biasing member 5 (or the limiting member 10) when the sliding member The pressure 5 is rotated relative to the clutch member 4. That is, the slip suppression members 15 slide on the surface of the restraint member 10 and cause sliding resistance against the sliding surface of the restraint member 10 (therefore against the clutch member 4) when the pressure member 5 rotates relative to the clutch member 4.
    [060] In accordance with this embodiment of the present invention, since the power transmission apparatus is provided with slip suppression members 15 apply slip resistance to the pressure member 5 when the pressure member 5 is rotated relative to to the clutch member 4, it is possible to suppress the vibration of the pressing member 5 by suppressing the rotation of the pressing member 5 relative to the clutch member 4. More particularly according to this embodiment, since the power transmission apparatus comprises the restraining member 10 to prevent the pressure member 5 from being separated from the clutch member 4 exceeding a predetermined distance, and the slip suppression members 15 are disposed on the pressure member so that they can slide on a surface of the member. limitation 10, it is possible to assemble or replace the slip suppression members 15 under a condition that the clutch member 4 and the pressure member 5 are assembled. for each other.
    [061] Although several embodiments of the present invention have been described, the present invention is not limited to these embodiments. For example, the slip suppression members can be formed from any material (eg any plastics or metals causing slip resistance other than rubber, gasket and friction materials) or can be formed as having any configurations ( ring configuration can be formed as block configuration or block configuration can be ring configuration). The present invention can be applied to a power transmission apparatus with either pressure contact assist cam or counter torque limiting cam. Furthermore, the present invention can be applied to many types of multiple disc clutch type power transmission apparatus used for vehicles, three-wheeled or four-wheeled carts or for general purpose machines other than motorcycles. INDUSTRY APPLICABILITY
    [062] The present invention can be applied to any power transmission apparatus comprising a slip suppression member(s) applying slip resistance to a pressure member when a pressure member is rotated relative to the clutch member although it has different appearance or additional functions other than those shown in the embodiments of the present invention. REFERENCE NUMBER DESCRIPTIONS 1 gear (input member) 2 clutch housing (input member) 3 shaft (output member) 4 clutch member 5 pressure member 6 drive side clutch disc 7 side clutch disc actuated 8 clutch spring 9 push rod 10 restraint member 11 to 15 slip suppression member
    权利要求:
    Claims (4)
    [0001]
    1. Power transmission apparatus comprising: a clutch housing (2) rotatable together with an input member (1) and mounted therein a plurality of drive side clutch discs (6); an engagement member (4) mounted thereon a plurality of drive side clutch discs (7) arranged between the drive side clutch discs (6) alternatively therewith and connected to an output member (3); and a pressure member (5) mounted on the clutch member (4) axially movable with respect to the clutch member (4) so that the drive side clutch discs (6) and the driven side clutch discs ( 7) are forced to be contacted by pressure and the pressure contact force acting on them is released according to axial approach and separation of the pressure member (5) from the clutch member (4) in order to transmit a force of rotational drive introduced from the input member (1) to the output member (3) or cut off the rotational drive power from the output member (3), characterized in that: the power transmission apparatus further comprises a slip suppression member(s) (11, 12, 13, 14, 15) for applying slip resistance to the pressure member (5) when the pressure member (5) is rotated relative to the clutch member ( 4); and wherein the power transmission apparatus further comprises a pressure contact assist cam (4a, 5a) for increasing the pressure contact force acting on the drive side clutch discs (6) and the drive side clutch discs. driven side (7) by causing relative rotation of the pressure member (5) and the clutch member (4) and bringing them close to each other when a condition where the rotational drive power is introduced to the input member (1 ) can be transmitted to the output member (3) is reached, and a counter torque limiting cam (4b, 5b) to release the pressure contact force acting on the drive side clutch discs (6) and the discs driven side clutch (7) by causing relative rotation of the pressure member (5) and the engagement member (4) and separating them from each other when a rotation speed of the output member (3) has exceeded that of the input member (1).
    [0002]
    2. Power transmission apparatus according to claim 1, characterized in that the pressure member (5) and the clutch member (4) are assembled with being fitted axially to each other, and in which the slip suppression member(s) (11, 12, 13) is disposed on the engaging surface of the pressure member (5) or the clutch member (4).
    [0003]
    3. Power transmission apparatus according to claim 1, characterized in that the slip suppression member (14) is arranged on a surface facing axially of the pressure member (5) or the engagement member (4) .
    [0004]
    4. Power transmission apparatus according to claim 1, characterized in that the power transmission apparatus further comprises a limiting member (10) to prevent the pressure member (5) from separating from the clutch member (4) exceeding a predetermined distance, and wherein the slip suppression members (15) are arranged on the pressure member (5) so that they can slide on a surface of the restraining member (10).
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    同族专利:
    公开号 | 公开日
    EP2799734A1|2014-11-05|
    BR112014016210A8|2017-07-04|
    WO2013100130A1|2013-07-04|
    EP2799734B1|2019-08-21|
    US9371867B2|2016-06-21|
    BR112014016210A2|2017-06-13|
    CN104011416B|2017-05-17|
    EP2799734A4|2016-07-27|
    PH12014501274B1|2014-09-15|
    PH12014501274A1|2014-09-15|
    JP2013137039A|2013-07-11|
    JP5995439B2|2016-09-21|
    CN104011416A|2014-08-27|
    IN2014KN01278A|2015-10-16|
    US20140326570A1|2014-11-06|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-06-16| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-01| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-07-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-03| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011287229A|JP5995439B2|2011-12-28|2011-12-28|Power transmission device|
    JP2011-287229|2011-12-28|
    PCT/JP2012/084079|WO2013100130A1|2011-12-28|2012-12-28|Power transmission device|
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