WO2015046076A1 - ダンパ装置および発進装置 - Google Patents
ダンパ装置および発進装置 Download PDFInfo
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- WO2015046076A1 WO2015046076A1 PCT/JP2014/074902 JP2014074902W WO2015046076A1 WO 2015046076 A1 WO2015046076 A1 WO 2015046076A1 JP 2014074902 W JP2014074902 W JP 2014074902W WO 2015046076 A1 WO2015046076 A1 WO 2015046076A1
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- WIPO (PCT)
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- elastic body
- damper device
- contact portion
- damper
- spring
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
- F16F15/1236—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates
- F16F15/12366—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/1414—Masses driven by elastic elements
- F16F15/1421—Metallic springs, e.g. coil or spiral springs
- F16F15/1428—Metallic springs, e.g. coil or spiral springs with a single mass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
- F16F15/1457—Systems with a single mass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
- F16F15/1236—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates
- F16F15/12366—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs
- F16F15/12373—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs the sets of springs being arranged at substantially the same radius
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/021—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type three chamber system, i.e. comprising a separated, closed chamber specially adapted for actuating a lock-up clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0263—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means the damper comprising a pendulum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0284—Multiple disk type lock-up clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0294—Single disk type lock-up clutch, i.e. using a single disc engaged between friction members
Definitions
- the present invention relates to an input element, an output element, an outer elastic body that transmits torque between them, and an inner elasticity that is disposed inside the outer elastic body and transmits torque between the input element and the output element.
- the present invention relates to a damper device including a body, and a starting device including the damper device.
- the third elastic body constituting the dynamic damper is the first or second in the radial direction or the first or second elastic body that transmits torque between the input element and the output element. It arrange
- the third elastic body constituting the dynamic damper is arranged at a radial position different from the first and second elastic bodies that transmit torque between the input element and the output element. Then, the outer diameter of the damper device increases and it becomes difficult to make the entire device compact.
- the main object of the present invention is to make the entire device compact by suppressing an increase in the outer diameter of the damper device provided with the dynamic damper.
- a damper device includes an input element, an output element, an outer elastic body that transmits torque between the input element and the output element, and the input element that is disposed inside the outer elastic body.
- a damper device including an inner elastic body that transmits torque to and from the output element, a third elastic body that is connected to any one of the rotating elements that constitute the damper device, and the third elastic body that is connected to the third elastic body
- a dynamic damper that has a mass body and that attenuates the vibration by applying an antiphase vibration to the rotating element, and the third elastic body is arranged to be aligned with the outer elastic body in the circumferential direction; It is characterized by that.
- the damper device has a third elastic body connected to any one of the rotating elements and a mass body connected to the third elastic body, and applies vibrations in an opposite phase to the rotating elements to vibrate.
- a dynamic damper that attenuates is provided.
- the 3rd elastic body which comprises a dynamic damper is arrange
- the third elastic body constituting the dynamic damper is arranged outside or inside in the radial direction of the outer elastic body or the inner elastic body, or between the outer elastic body and the inner elastic body in the radial direction, An increase in the outer diameter of the damper device can be suppressed and the entire device can be made compact. Furthermore, by arranging the third elastic body constituting the dynamic damper close to the outer periphery of the damper device so as to be aligned with the outer elastic body in the circumferential direction, the rigidity of the outer elastic body and the third elastic body becomes too high. And the rigidity of the inner elastic body can be reduced, and the damping performance of the damper device including the dynamic damper can be further improved.
- the distance between the axis of the damper device and the axis of the outer elastic body and the distance between the axis of the damper device and the axis of the third elastic body may be equal. Thereby, it becomes possible to suppress the increase in the outer diameter of the damper device more favorably.
- the axis of the outer elastic body and the axis of the third elastic body may be included in the same plane perpendicular to the axis of the damper device.
- the damper device may further include an intermediate element that transmits power from the outer elastic body to the inner elastic body, and the input element has an input-side contact portion that contacts the outer elastic body.
- the third elastic body may be coupled to the intermediate element.
- the inner elastic body may include a first inner elastic body and a second inner elastic body arranged so as to be adjacent to each other, and the damper device transmits power from the outer elastic body to the first inner elastic body.
- the third elastic body may include the first intermediate element. It may be connected to the intermediate element.
- the damper device may further include an intermediate element that transmits power from the outer elastic body to the inner elastic body, and the intermediate element can contact the outer elastic body and the third elastic body.
- You may have a some intermediate
- the outer elastic body may be supported from both sides by the two intermediate contact portions in the mounted state of the damper device, and both end portions of the third elastic body are respectively mounted in the mounted state of the damper device. You may contact
- the input element may have a plurality of input side abutting portions that abut against the outer elastic body, and the outer elastic body has two input side abutting portions in the mounted state of the damper device. May be supported from both sides.
- the damper device may further include an intermediate element that transmits power from the outer elastic body to the inner elastic body, and the input element has an input-side contact portion that contacts the outer elastic body.
- the intermediate element may include an intermediate contact portion that can contact the outer elastic body and the third elastic body, and the mass body of the dynamic damper includes the third elastic member.
- a connecting member having a plurality of elastic body abutting portions provided so as to abut against both ends of the body may be fixed, a distance between the shaft center of the damper device and the input side abutting portion, At least one of the distance between the shaft center and the intermediate contact portion and the distance between the shaft center of the damper device and the elastic member contact portion may be different from the remaining two.
- the input-side contact portion of the input element may be aligned with the intermediate-side contact portion of the intermediate element in a radial direction of the damper device, and the intermediate-side contact portion of the intermediate element is the connection member
- the elastic body contact portion and the damper device may be arranged in the radial direction.
- the distance between the shaft center of the damper device and the elastic body contact portion may be longer than the distance between the shaft center of the damper device and the intermediate contact portion.
- the distance between the shaft center of the damper device and the input side contact portion, the distance between the shaft center of the damper device and the intermediate contact portion, the shaft center of the damper device and the elastic body contact may be different from each other.
- the intermediate element includes a first plate member having an annular guide portion for guiding the outer elastic body, and a second plate member having the intermediate contact portion and connected to the first plate member.
- the input side contact portion of the input element protrudes inside the annular guide portion through an opening formed in the first plate member, and the intermediate side contact of the second plate member.
- the elastic member abutting portion of the connecting member may be in contact with the outer elastic body at a radially inner side than the intermediate portion, and an end portion of the third elastic body at a radially outer side than the intermediate contact portion You may contact.
- the input side contact portion of the input element, the intermediate side contact portion of the intermediate element, and the elastic member contact portion of the connecting member are arranged in this order from the inside to the outside.
- these three portions do not interfere with each other, and the strokes of the outer elastic body and the third elastic body can be further ensured.
- the input element includes a first input member having an elastic body surrounding portion that surrounds and guides the outer elastic body, and a second input member that has the input side contact portion and is connected to the first input member.
- the elastic body abutting portion of the connecting member protrudes into the elastic body surrounding portion through an opening formed in the first input member and the input side of the second input member.
- the intermediate element may be in contact with the end portion of the third elastic body at a radially inner side than the contact portion, and the intermediate element may be configured such that the intermediate contact portion is more radially than the elastic member contact portion of the connecting member.
- the outer elastic body may be an arc coil spring
- the inner elastic body may be a linear coil spring
- the third elastic body may be a linear coil spring.
- the damper device and the dynamic damper have 0.90 ⁇ f ⁇ fdd ⁇ 1.10 ⁇ It may be configured to satisfy f.
- the damper device may further include a centrifugal pendulum type vibration absorber connected to any of the rotating elements included in the damper device.
- the damper device and the dynamic damper may be configured to satisfy 1.0 ⁇ Los / Lds ⁇ 10.0.
- a starting device includes a starting device including any one of the above-described damper devices, a pump impeller, and a turbine runner that constitutes a fluid transmission device together with the pump impeller, wherein the dynamic damper includes the third elastic body.
- Another starting device is a starting device comprising any one of the above-described damper devices, a pump impeller, and a turbine runner that forms a fluid transmission device together with the pump impeller, wherein the dynamic damper includes the turbine runner and Have different dedicated masses.
- the dynamic damper may have a dedicated mass body.
- FIG. 1 is a partial cross-sectional view showing a starting device 1 including a damper device 10 according to an embodiment of the present invention.
- a starting device 1 shown in FIG. 1 is mounted on a vehicle including an engine (internal combustion engine) as a prime mover.
- an engine internal combustion engine
- a front cover as an input member connected to a crankshaft of the engine.
- the pump impeller 4 includes a pump shell 40 that is tightly fixed to the front cover 3 and a plurality of pump blades 41 that are disposed on the inner surface of the pump shell 40.
- the turbine runner 5 includes a turbine shell 50 and a plurality of turbine blades 51 disposed on the inner surface of the turbine shell 50.
- An inner peripheral portion of the turbine shell 50 is fixed to the turbine hub 52 via a plurality of rivets.
- the turbine hub 52 is rotatably supported by the damper hub 7, and the movement of the turbine hub 52 in the axial direction of the starting device 1 is restricted by the damper hub 7 and a snap ring attached to the damper hub 7.
- the pump impeller 4 and the turbine runner 5 face each other, and a stator 6 that rectifies the flow of hydraulic oil (working fluid) from the turbine runner 5 to the pump impeller 4 is coaxially disposed between the two.
- the stator 6 has a plurality of stator blades 60, and the rotation direction of the stator 6 is set in only one direction by the one-way clutch 61.
- the pump impeller 4, the turbine runner 5, and the stator 6 form a torus (annular flow path) for circulating hydraulic oil, and function as a torque converter (fluid transmission device) having a torque amplification function.
- the stator 6 and the one-way clutch 61 may be omitted, and the pump impeller 4 and the turbine runner 5 may function as a fluid coupling.
- the lockup clutch 8 executes a lockup for connecting the front cover 3 and the damper hub 7 via the damper device 10 and releases the lockup.
- the lock-up clutch 8 is disposed in the front cover 3 and in the vicinity of the inner wall surface of the front cover 3 on the engine side (right side in the figure), and is slidably and rotatably fitted to the damper hub 7 in the axial direction. Having a lock-up piston 80. As shown in FIG. 1, a friction material 80 f is attached to the outer peripheral side of the lockup piston 80 and the surface on the front cover 3 side.
- a lockup chamber 89 is defined between the lockup piston 80 and the front cover 3 and connected to a hydraulic control device (not shown) through an oil passage formed in the hydraulic oil supply hole and the input shaft IS.
- the lockup piston 80 In the lockup chamber 89, hydraulic oil supplied from the hydraulic control device to the pump impeller 4 and the turbine runner 5 (torus) can flow. Therefore, if the inside of the fluid transmission chamber 9 and the lockup chamber 89 defined by the front cover 3 and the pump shell 40 of the pump impeller 4 are kept at an equal pressure, the lockup piston 80 is moved to the front cover 3 side. The lockup piston 80 does not frictionally engage with the front cover 3. On the other hand, if the pressure in the lockup chamber 89 is reduced by a hydraulic control device (not shown), the lockup piston 80 moves toward the front cover 3 due to the pressure difference and frictionally engages with the front cover 3. Thereby, the front cover 3 is connected to the damper hub 7 via the damper device 10.
- the damper device 10 includes a drive member (input element) 11 as a rotating element, a first intermediate member 12 and a second intermediate member 15 as intermediate elements, and a driven member (output element). ) 16 and a plurality of (in this embodiment, two) outer springs (outer elastic bodies) SP1 disposed as close to the outer periphery of the damper device 10 as power transmission elements, and more than the outer spring SP1.
- a plurality (three in this embodiment) of first inner springs (inner elastic bodies) SP21 and a plurality (three in this embodiment) of second inner springs (inner elastic bodies) SP22 arranged on the inner side are provided. Including.
- the outer spring SP1 is an arc spring (arc coil spring) made of a metal material wound so as to have an axis extending in an arc shape when no load is applied.
- the outer spring SP1 can be further reduced in rigidity (spring constant is reduced), and the damper device 10 can be further reduced in rigidity (long stroke).
- the first and second inner springs SP21 and SP22 are coil springs (straight lines) made of a metal material spirally wound so as to have an axial center extending straight when no load is applied. Type coil springs), each having higher rigidity (spring constant) than the outer spring SP1.
- the rigidity (spring constant) of the first and second inner springs SP21 and SP22 may be the same or different from each other.
- arc springs may be employed as the first and second inner springs SP21 and SP22.
- the drive member 11 includes an annular fixed portion 11a that is fixed to the lockup piston 80 of the lockup clutch 8 through a plurality of rivets, and an axial direction from the outer peripheral portion of the fixed portion 11a toward the pump impeller 4 and the turbine runner 5. And a plurality of spring contact portions (input-side contact portions) 11b that are extended to each other.
- the drive member 11 is fixed to the lock-up piston 80 and disposed in the outer peripheral side region in the fluid transmission chamber 9.
- the first intermediate member 12 is disposed on the annular first plate member 13 disposed on the front cover 3 (lock-up piston 80) side, the pump impeller 4 and the turbine runner 5 side, and is disposed through the rivet.
- an annular second plate member 14 connected (fixed) to the one plate member 13.
- the first plate member 13 constituting the first intermediate member 12 has an annular guide portion (annular support portion) 13a that guides the plurality of outer springs SP1, and an interval in the vicinity of the annular guide portion 13a.
- a plurality of spring guide portions (spring support portions) 13 d formed on the inner peripheral side of the first plate member 13.
- the first plate member 13 is located upstream of the first and second inner springs SP21 and SP22 adjacent to each other in the normal rotation direction of the drive member 11 and the like (the rotation direction of the engine, see the bold arrow in FIG. 2).
- a spring contact portion 13e (see FIG. 4) that contacts the end portion of the first inner spring SP21 that is arranged (the upstream end portion in the forward rotation direction), and the first and second inner springs SP21 that are adjacent to each other.
- a spring contact portion (not shown) that contacts the end portion of the second inner spring SP22 (downstream end portion in the forward rotation direction) disposed on the downstream side in the forward rotation direction of the drive member 11 or the like.
- the annular guide portion 13a of the first plate member 13 is formed so as to surround one side portion (right side portion in FIG. 1) and the outer periphery of the outer spring SP1 from the front cover 3 side. Further, each spring contact portion 11b of the drive member 11 protrudes from the corresponding opening 13b to the inside of the annular guide portion 13a, and the end portion of the corresponding outer spring SP1 (the upstream side in the normal rotation direction of the drive member 11 or the like). Abutting the end, see FIG. That is, when the damper device 10 is attached, each outer spring SP1 is supported from both sides by the two spring contact portions 11b as shown in FIG. Furthermore, the spring guide portion 13c and the spring guide portion 13d are opposed to the radial direction of the first plate member 13 to guide the side portions (the right side portion in FIG. 1) of the first and second inner springs SP21 and SP22. To do.
- the second plate member 14 connected (fixed) to the first plate member 13 has a plurality of spring guide portions (spring support portions) for guiding the corresponding outer spring SP1 inside the annular guide portion 13a of the first plate member 13.
- 14a a plurality (four in this embodiment) of spring contact portions (intermediate contact portions) 14b extending in the axial direction toward the front cover 3 outside the spring guide portion 14a,
- a plurality of spring guide portions (spring support portions) 14c formed so as to face the spring guide portions 13c of the one plate member 13 and a plurality of spring guide portions 13d formed so as to face the spring guide portions 13d of the first plate member 13.
- a spring guide portion (spring support portion) 14d a spring guide portion (spring support portion) 14d.
- the second plate member 14 is arranged on the upstream side in the forward rotation direction of the drive member 11 and the like among the first and second inner springs SP21 and SP22 adjacent to each other.
- the first and second inner springs SP21 and SP22 adjacent to each other and the spring contact portion 14e that contacts the end portion (upstream end portion in the forward rotation direction) of the spring SP21, the forward rotation of the drive member 11 and the like A spring contact portion 14f that contacts the end portion of the second inner spring SP22 (downstream end portion in the forward rotation direction) disposed on the downstream side in the direction.
- each spring contact portion 14 b of the second plate member 14 is outside on the radially outer side than the spring contact portion 11 b of the drive member 11 as shown in FIGS. 1 and 2. It contacts the end of the spring SP1. That is, when the damper device 10 is attached, each outer spring SP1 is supported from both sides by the two spring contact portions 14b as shown in FIG.
- the spring guide portion 14c and the spring guide portion 14d are opposed to the radial direction of the second plate member 14 and support the side portions (left side portions in FIG. 1) of the first and second inner springs SP21 and SP22.
- the first and second inner springs SP21 and SP22 guided by the spring guide portions 13c and 13d of the first plate member 13 and the spring guide portions 14c and 14d of the second plate member 14 are close to the input shaft IS.
- the second intermediate member 15 is disposed between the first plate member 13 and the second plate member 14 and is rotatably supported by the damper hub 7. Further, as shown in FIG. 2, the second intermediate member 15 is formed at intervals in the circumferential direction and protrudes radially outward, and between the first and second inner springs SP21 and SP22 adjacent to each other. A plurality of spring contact portions 15a. Each spring contact portion 15a abuts on an end portion (a downstream end portion in the forward rotation direction) of the first inner spring SP21 disposed on the upstream side in the forward rotation direction of the drive member 11 or the like, and also in the drive member. 11 and the like, abutting on the end of the second inner spring SP22 disposed on the downstream side in the forward rotation direction (upstream end in the forward rotation direction).
- the driven member 16 is disposed between the first plate member 13 and the second plate member 14 of the first intermediate member 12 and is fixed to the damper hub 7 by welding or the like. Further, as shown in FIG. 2, the driven member 16 includes a plurality of spring contact portions 16 a that contact the corresponding end portions of the second inner springs SP ⁇ b> 22 (downstream end portions in the forward rotation direction). Thus, the driven member 16 is coupled to the first intermediate member 12 via the plurality of first inner springs SP21, the second intermediate member 15, and the plurality of second inner springs SP22.
- the dynamic damper 20 includes a plurality of third springs (third elastic bodies) SP3 that are coil springs (linear coil springs) or arc springs (arc coil springs), and a third spring (third elastic body) SP3. 3 and a connecting member 21 which is connected to the spring SP3 and constitutes a mass body together with the turbine runner 5 and the turbine hub 52 described above.
- the “dynamic damper” is a mechanism that attenuates vibration (vibration at the resonance frequency of the damper device 10) by applying vibration in the opposite phase to the vibration body at a frequency (engine speed) that matches the resonance frequency of the vibration body. It is constituted by connecting a spring and a mass body so as not to be included in the torque transmission path with respect to the vibrating body.
- the dynamic damper can be operated at a desired frequency by adjusting the rigidity of the spring and the weight of the mass body.
- the connecting member 21 of the dynamic damper 20 includes an annular fixing portion 22 fixed to the turbine shell 50 constituting the turbine runner 5 and a plurality (four in this embodiment) of springs extending from the fixing portion 22.
- the fixing portion 22 of the connecting member 21 is fixed to the outer peripheral side region of the rear surface (surface on the front cover 3 side) of the turbine shell 50 by welding or the like.
- the plurality of spring contact portions 23 are formed symmetrically with respect to the axis of the damper device 10 (starting device 1) so as to be close to each other by two (a pair), and two spring contact portions 23 that are paired with each other. Are opposed to each other with an interval corresponding to the natural length of the third spring SP3, for example.
- One third spring SP3 is disposed between the two spring contact portions 23 that are paired with each other. That is, in the mounted state of the damper device 10, the plurality of spring contact portions 23 are in contact with the corresponding end portions of the third springs SP3, and both end portions of the respective third springs SP3 are connected to the pair of spring contact portions 23. Is supported by
- each third spring SP3 is supported by a pair of spring abutting portions 23, and one third spring SP3 is arranged between two outer springs SP1 adjacent to each other so as to be aligned in the circumferential direction.
- the outer periphery of each third spring SP3 is guided by the annular guide portion 13a of the first plate member 13 described above, and both end portions of each third spring SP3 are in the second plate member 14 when the damper device 10 is attached.
- the spring contact portion 14b thereby, each 3rd spring SP3 is connected with the 1st intermediate member 12 which is an intermediate element of damper device 10.
- the plurality of spring contact portions 23 are third radially corresponding to the spring contact portions 14 b of the second plate member 14 on the radially outer side. It contacts the end of the spring SP3. That is, the distance between the shaft center of the damper device 10 and the spring contact portion (elastic body contact portion) 23 is larger than the distance between the shaft center of the damper device 10 and the spring contact portion (intermediate contact portion) 14b. long.
- the third spring SP3 constituting the dynamic damper 20 is arranged close to the outer periphery of the damper device 10 so as to be aligned with the outer spring SP1 in the circumferential direction, the third spring SP3 is moved to the outer spring SP1 and the first and first springs.
- the outer diameter of the damper device 10 as compared with the case where the second inner springs SP21 and SP22 are arranged outside or inside in the radial direction or between the outer spring SP1 and the first and second inner springs SP21 and SP22 in the radial direction.
- the whole apparatus can be made more compact by suppressing the increase in the above.
- the plurality of outer springs SP1 and the plurality of third springs SP3 are arranged concentrically as shown in FIG. 2, and the axis of the starting device 1 and the damper device 10 and the outer springs SP1.
- the distance r1 from the axis is equal to the distance r3 between the axis of the starting device 1 or the damper device 10 and the axis of each third spring SP3.
- each outer spring SP1 and each third spring SP3 are included in the same plane PL (see FIG. 1) in which the respective axis centers are orthogonal to the axis centers of the starting device 1 and the damper device 10. Arranged to be. Thereby, the increase in the axial length of the damper apparatus 10 can also be suppressed.
- the circumferential length of the outer spring SP1 when the damper device 10 (including the dynamic damper 20) is attached is “Los”, and the third spring SP3 when the damper device 10 is attached.
- the ratio A Los / Lds between the circumferential length of the outer spring SP1 and the circumferential length of the third spring SP3 is 1.0 ⁇ A ⁇ 10.0, where “Lds” is the circumferential length.
- it is configured to satisfy 1.0 ⁇ A ⁇ 7.0.
- the ratio A is set to a value within such a range, so that an increase in the outer diameter of the damper device 10 is suppressed and the outer springs S1 and the third springs SP3 are suppressed.
- the damping performance of the damper device 10 including the dynamic damper 20 can be improved extremely practically by optimizing the rigidity.
- the circumferential length of the outer spring SP1 and the third spring SP3 in the attached state of the damper device 10 is the length of the axial center extending in an arc shape between at least a pair of spring contact portions.
- the length of the shaft center extends straight or in an arc shape between at least a pair of spring contact portions. Therefore, the circumferential lengths of the outer spring SP1 and the third spring SP3 in the attached state of the damper device 10 connect one end of the axial center of the outer spring SP1 and the third spring SP3 in the attached state and the shaft center of the damper device 10.
- the central angle ⁇ 1 (see FIG. 2) indicating the circumferential length of the outer spring SP1 when the damper device 10 is attached is, for example, 90 °
- the third spring SP3 when the damper device 10 is attached.
- the third spring SP3 constituting the dynamic damper 20 is disposed close to the outer periphery of the damper device 10 so as to be aligned with the outer spring SP1 in the circumferential direction.
- the rigidity (spring constant) of the spring SP3 is prevented from becoming too high, and the rigidity (spring constant) of the first and second inner springs SP21 and SP22 is reduced, thereby reducing the damping performance of the damper device 10 including the dynamic damper 20. It can be improved further. Therefore, in the starting device 1, when the lockup is performed by the lockup clutch 8, it is possible to satisfactorily attenuate (absorb) the fluctuation of the torque input to the front cover 3 by the damper device 10.
- the pump impeller 4 and the turbine runner 5 are not involved in torque transmission between the front cover 3 and the input shaft IS of the transmission, and are accompanied by the rotation of the engine.
- any one (any two) of the spring contact portions 14b of the second plate member 14 corresponds to the third spring SP3.
- the other end of each third spring SP3 presses one of the corresponding pair of spring contact portions 23 of the connecting member 21.
- the dynamic damper 20 including the plurality of third springs SP3, the turbine runner 5 as a mass body, and the like is the first intermediate of the damper device 10. It will be connected to the member 12.
- the dynamic damper 20 can impart a vibration having an opposite phase to the first intermediate member 12 to satisfactorily attenuate the vibration.
- the resonance frequency fdd of the dynamic damper 20 is included within a range of, for example, ⁇ 10 (Hz) of the resonance frequency f of the damper device 10 (resonance frequency between the damper device 10 and the drive shaft).
- the specifications of the third spring SP3 and the like are determined (so that 0.90 ⁇ f ⁇ fdd ⁇ 1.10 ⁇ f is satisfied).
- the lockup is executed when the engine speed reaches a lockup speed determined to be extremely low, for example, about 1000 rpm, thereby improving the power transmission efficiency and consequently the fuel consumption of the engine and suppressing the self-excited vibration. Is possible.
- the damper device 10 of the starting device 1 includes the third spring SP3 coupled to the first intermediate member 12 serving as the rotating element and the dynamic damper 20 including the mass body coupled to the third spring SP3. It is to be prepared. And 3rd spring SP3 which comprises the dynamic damper 20 is arrange
- the distance r1 between the axis of the damper device 10 and the axis of the outer spring SP1 is equal to the distance r3 between the axis of the damper device 10 and the axis of the third spring SP3.
- an increase in the outer diameter of the damper device 10 can be suppressed more favorably.
- the axial center of the outer spring SP1 and the axial center of the third spring SP3 are included in the same plane PL orthogonal to the axial center of the damper device 10, an increase in the axial length of the damper device 10 is also suppressed. Therefore, the entire apparatus can be made more compact.
- the distance r1 between the axis center of the damper device 10 and the axis center of the outer spring SP1 and the distance r3 between the axis center of the damper device 10 and the axis center of the third spring SP3 need to be completely matched. There may be some differences due to design tolerances. Similarly, the axial center of the outer spring SP1 and the axial center of the third spring SP3 do not have to be completely included in the same plane, and may be slightly shifted in the axial direction due to design tolerances or the like.
- the spring contact portion (input side contact portion) 11 b of the drive member 11 is first through an opening portion 13 b formed in the first plate member 13 constituting the first intermediate member 12.
- the plate member protrudes to the inside of the annular guide portion 13a of the plate member and contacts the outer spring SP1 on the radially inner side of the spring contact portion (intermediate contact portion) 14b of the second plate member 14.
- the plurality of spring contact portions 23 provided on the connecting member 21 are in contact with the corresponding end portions of the third springs SP3 on the radially outer side than the spring contact portions 14b of the first intermediate member 12.
- the distance between the axis of the damper device 10 and the spring contact part (input side contact part) 11b (for example, the distance from the axis to the center line in the thickness direction of the spring contact part), the damper
- the distance between the shaft center of the device 10 and the spring contact portion (intermediate contact portion) 14b and the distance between the shaft center of the damper device 10 and the spring contact portion (elastic body contact portion) 23 are different from each other.
- the spring contact portion 11b of the drive member 11, the spring contact portion 14b of the first intermediate member 12, and the spring contact portion 23 of the connecting member 21 are arranged in this order from the inside to the outside.
- these three portions do not interfere with each other, and the strokes of the outer spring SP1 and the third spring SP3 can be secured sufficiently long. It becomes.
- the spring contact portion 11b, the spring contact portion 14b, and the spring contact portion 23 do not necessarily need to be spaced apart from each other in the radial direction from the inside to the outside in this order.
- two of these three portions may be arranged on the remaining one radially outer side or radially inner side.
- the distance between the shaft center of the damper device 10 and the spring contact portion (input side contact portion) 11b, the distance between the shaft center of the damper device 10 and the spring contact portion (intermediate side contact portion) 14b, and the damper Any one of the distances between the axis of the apparatus 10 and the spring contact portion (elastic body contact portion) 23 may be different from the remaining two.
- both end portions of the third spring SP3 are supported by a pair (two) of spring contact portions 23 of the connecting member 21 in a mounted state of the damper device 10, and corresponding springs of the second plate member 14 respectively. Although it contacts with the contact part 14b, it is not restricted to this. That is, the number of the third springs SP3 constituting the dynamic damper 20 is increased as appropriate, and the connecting member 21 is provided with a spring abutting portion that abuts both ends between two adjacent third springs SP3. Two adjacent third springs SP3 may be supported by spring contact portions such as intermediate members from both sides via the spring contact portions.
- the dynamic damper 20 can be operated more smoothly.
- FIG. 5 is a partial cross-sectional view showing a starting device 1B according to a modification.
- the starting device 1B shown in the figure corresponds to the starting device 1 described above in which the single plate hydraulic lockup clutch 8 is replaced with a multi-plate hydraulic lockup clutch 8B.
- the lock-up clutch 8B is fixed to the inner surface of the front cover 3 so as to face the lock-up piston 80B, and a lock-up piston 80B that is supported by the center piece 30 fixed to the front cover 3 so as to be movable in the axial direction.
- annular clutch hub 81 An annular clutch hub 81, a clutch drum 82, a plurality of first friction engagement plates 83 (separator plates) fitted to splines formed on the outer periphery of the clutch hub 81, and an inner periphery of the clutch drum 82.
- the lock-up clutch 8B is positioned on the opposite side of the front cover 3 with respect to the lock-up piston 80B, that is, on the damper hub 7 and the damper device 10 side with respect to the lock-up piston 80B.
- An annular flange member (oil chamber defining member) 85 attached to the center piece 30 and a plurality of return springs 86 disposed between the front cover 3 and the lockup piston 80B.
- the fixed portion 11a of the drive member 11 of the damper device 10 is connected to or integrated with the clutch drum 82.
- hydraulic oil (lockup pressure) is supplied from a hydraulic control device (not shown) to a lockup chamber (engagement oil chamber) 89 defined by the lockup piston 80B and the flange member 85.
- the lock-up piston 80B is moved in the axial direction so as to press the first and second friction engagement plates 83 and 84 toward the front cover 3, thereby engaging the lock-up clutch 8B (complete engagement or slip). Engagement).
- FIG. 6 is a partial cross-sectional view showing a starting device 1C including a damper device 10C according to a modification.
- the drive member 11C of the damper device 10C shown in the figure includes an annular first input member 111 having a spring surrounding portion (elastic body surrounding portion) 111a that surrounds and guides the plurality of outer springs SP1 from the turbine runner 5 side. And an annular second input member 112 connected to the first input member 111 through a rivet.
- a plurality of openings 111b are formed at equal intervals so as to penetrate through the side wall of the spring surrounding portion 111a on the turbine runner 5 side.
- the first input member 111 has a concavo-convex engaging portion 111 c that is fitted into a concavo-convex engaging portion formed on the outer peripheral portion of the lockup piston 80 ⁇ / b> C of the lockup clutch 8.
- the drive member 11C and the lock-up piston 80C are coupled so as to be integrally rotatable (fitting coupled).
- the second input member 112 includes a plurality of spring guide portions (spring support portions) 112a that guide the corresponding outer spring SP1 inside the spring surrounding portion 111a of the first input member 111, the pump impeller 4 and the turbine runner 5. And a plurality of spring contact portions (input-side contact portions) 112b extending in the axial direction.
- the second input member 112 is aligned by the outer peripheral surface of the driven member 16 and is rotatably supported.
- arc springs are employed as the plurality of inner springs SP20, and accordingly, the second intermediate member 15 in the damper device 10 is omitted.
- the inner spring SP20 can be further reduced in rigidity (spring constant is reduced), and the damper device 10C can be further reduced in rigidity (long stroke).
- the first plate member 13C and the second plate member 14C constituting the intermediate member (intermediate element) 12C of the damper device 10C have spring contact portions (not shown) that contact the corresponding end portions of the inner springs SP20.
- the driven members 16 have spring contact portions (not shown) that contact the end portions of the corresponding inner springs SP20.
- the second plate member 14 ⁇ / b> C constituting the intermediate member (intermediate element) 12 ⁇ / b> C has a spring contact portion (intermediate contact portion) 14 b outside the spring surrounding portion 111 a of the first input member 111. It arrange
- each spring contact portion 112b of the second input member 112 contacts the end portion of the outer spring SP1 on the radially outer side than the spring contact portion 23 of the connecting member 21. That is, the distance between the shaft center of the damper device 10C and the spring contact portion (intermediate contact portion) 14b, the distance between the shaft center of the damper device 10C and the spring contact portion (elastic body contact portion) 23, and the damper The distance between the shaft center of the device 10C and the spring contact portion (input side contact portion) 112b is different from each other.
- the spring contact portion 14b of the intermediate member 12C, the spring contact portion 23 of the connecting member 21, and the spring contact portion 112b of the drive member 11C are arranged in this order from the inside to the outside.
- the spring contact portion 14b, the spring contact portion 23, and the spring contact portion 112b do not necessarily need to be spaced apart from each other in the radial direction from the inside toward the outside in this order.
- two of these three portions may be arranged on the remaining one radially outer side or radially inner side. That is, the distance between the shaft center of the damper device 10C and the spring contact portion (intermediate contact portion) 14b, the distance between the shaft center of the damper device 10C and the spring contact portion (elastic body contact portion) 23, and the damper Any one of the distances between the axis of the apparatus 10C and the spring contact portion (input side contact portion) 112b may be different from the remaining two.
- the first plate member 13C constituting the intermediate member 12C of the damper device 10C is aligned with the outer spring SP1 in the axial direction from the connecting portion with the second plate member 14C. It has the mass body support part 13s extended to the side and radial direction outer side.
- the mass body support portion 13s of the first plate member 13C supports the plurality of pendulum mass bodies 24 so as to be swingable so as to be adjacent to each other in the circumferential direction.
- the centrifugal pendulum type vibration absorber 25 is configured by the first plate member 13 ⁇ / b> C as the support member and the plurality of pendulum mass bodies 24. As shown in FIG.
- the centrifugal pendulum type vibration absorber 25 is disposed in the fluid transmission chamber 9 so as to be positioned between the lock-up piston 80C and the damper device 10C, and the lock-up piston 80C and the drive member 11C.
- a single input member 111 surrounds the front cover 3 side (engine side) and the radially outer side. Further, each pendulum mass body 24 is aligned with each outer spring SP ⁇ b> 1 of the damper device 10 in the axial direction.
- each pendulum mass body 24 is rotatably inserted into a guide hole which is a plurality of, for example, substantially arc-shaped elongated holes formed at predetermined intervals on the mass body support portion 13s. It comprises a spindle (roller) and two metal plates (weights) fixed to both ends of the spindle.
- a guide hole which is a plurality of, for example, substantially arc-shaped elongated holes formed at predetermined intervals on the mass body support portion 13s. It comprises a spindle (roller) and two metal plates (weights) fixed to both ends of the spindle.
- the configuration of the centrifugal pendulum vibration absorber 25 is not limited to this.
- the centrifugal pendulum vibration absorber 25 may be configured to rotate integrally with the drive member 11C (input element) or the driven member (output element) 16 of the damper device 10C.
- the centrifugal pendulum vibration absorber 25 connected to the damper device 10C includes a plurality of pendulum mass bodies 24 as the first plate member 13C (intermediate member 12C) as a support member that supports each pendulum mass body 24 rotates. Oscillates in the same direction with respect to the first plate member 13C, thereby applying a vibration having a phase opposite to the vibration of the intermediate member 12C to the intermediate member 12C of the damper device 10.
- the centrifugal pendulum vibration absorber 25 causes the intermediate member (intermediate) that tends to vibrate between the outer spring SP1 and the inner spring SP20. It is possible to absorb (attenuate) the vibration of the element 12C and to reduce the vibration level of the damper device 10 as a whole.
- FIG. 7 is a schematic configuration diagram showing a starting device 1D according to another modification.
- the single-plate hydraulic lockup clutch 8 in the above-described starting device 1C is replaced with a multi-plate hydraulic lockup clutch 8D configured similarly to the lockup clutch 8B of FIG. It corresponds to a thing.
- the uneven engagement portion 111c formed on the first input member 111 of the damper device 10C is fitted into the uneven engagement portion formed on the outer peripheral portion of the clutch drum 82D of the lockup clutch 8D.
- the drive member 11 ⁇ / b> C and the clutch drum 82 ⁇ / b> D are coupled (fit-coupled) so as to be integrally rotatable.
- the starting device 1 ⁇ / b> D configured as described above, it is possible to obtain the operational effects achieved by the above-described damper device 10 ⁇ / b> C.
- the damper devices 10 and 10C may be configured such that the outer spring SP and the first and second inner springs SP21 and SP22 or the inner spring SP20 act in parallel. That is, the damper devices 10 and 10C may be configured as a series damper device having a drive member, an intermediate member, and a driven member as rotating elements, and a parallel type having a drive member, an intermediate member, and a driven member as rotating elements. It may be configured as a damper device.
- the mass body of the dynamic damper 20 is configured by the turbine runner 5 and the connecting member 21, but the dynamic damper 20 has a dedicated mass body that is different from the turbine runner 5. It may be configured as a thing.
- the present invention can be used in the field of manufacturing a damper device and a starting device having the damper device.
Abstract
Description
Claims (20)
- 入力要素と、出力要素と、前記入力要素と前記出力要素との間でトルクを伝達する外側弾性体と、前記外側弾性体よりも内側に配置されて前記入力要素と前記出力要素との間でトルクを伝達する内側弾性体とを含むダンパ装置において、
前記ダンパ装置を構成する何れかの回転要素に連結される第3弾性体および該第3弾性体に連結される質量体を有し、前記回転要素に対して逆位相の振動を付与して振動を減衰するダイナミックダンパを備え、
前記第3弾性体は、前記外側弾性体と周方向に並ぶように配置されることを特徴とするダンパ装置。 - 請求項1に記載のダンパ装置において、
前記ダンパ装置の軸心と前記外側弾性体の軸心との距離と、前記ダンパ装置の軸心と前記第3弾性体の軸心との距離とが等しいことを特徴とするダンパ装置。 - 請求項1または2に記載のダンパ装置において、
前記外側弾性体の軸心と前記第3弾性体の軸心とは、前記ダンパ装置の軸心と直交する同一平面内に含まれることを特徴とするダンパ装置。 - 請求項1から3の何れか一項に記載のダンパ装置において、
前記外側弾性体からの動力を前記内側弾性体に伝達する中間要素を更に含み、
前記入力要素は、前記外側弾性体と当接する入力側当接部を有し、前記第3弾性体は、前記中間要素に連結されることを特徴とするダンパ装置。 - 請求項1から3の何れか一項に記載のダンパ装置において、
前記内側弾性体は、互いに隣り合うように配置される第1内側弾性体および第2内側弾性体を含み、
前記ダンパ装置は、前記外側弾性体からの動力を前記第1内側弾性体に伝達する第1中間要素と、前記第1内側弾性体からの動力を前記第2内側弾性体に伝達する第2中間要素とを更に含み、
前記第3弾性体は、前記第1中間要素に連結されることを特徴とするダンパ装置。 - 請求項1から5の何れか一項に記載のダンパ装置において、
前記外側弾性体からの動力を前記内側弾性体に伝達する中間要素を更に含み、
前記中間要素は、前記外側弾性体および前記第3弾性体と当接可能な複数の中間側当接部を有し、
前記外側弾性体は、前記ダンパ装置の取付状態において、2つの前記中間側当接部により両側から支持され、
前記第3弾性体の両端部は、前記ダンパ装置の取付状態において、それぞれ前記中間側当接部と当接することを特徴とするダンパ装置。 - 請求項6に記載のダンパ装置において、
前記入力要素は、前記外側弾性体と当接する複数の入力側当接部を有し、
前記外側弾性体は、前記ダンパ装置の取付状態において、2つの前記入力側当接部により両側から支持されることを特徴とするダンパ装置。 - 請求項1から5の何れか一項に記載のダンパ装置において、
前記外側弾性体からの動力を前記内側弾性体に伝達する中間要素を更に含み、
前記入力要素は、前記外側弾性体と当接する入力側当接部を有し、
前記中間要素は、前記外側弾性体および前記第3弾性体と当接可能な中間側当接部を有し、
前記ダイナミックダンパの前記質量体には、前記第3弾性体の両端と当接するように設けられた複数の弾性体当接部を有する連結部材が固定されており、
前記ダンパ装置の軸心と前記入力側当接部との距離、前記ダンパ装置の軸心と前記中間側当接部との距離、および前記ダンパ装置の軸心と前記弾性体当接部との距離の少なくとも何れか1つが残余の2つと異なることを特徴とするダンパ装置。 - 請求項8に記載のダンパ装置において、
前記入力要素の前記入力側当接部は、前記中間要素の前記中間側当接部と前記ダンパ装置の径方向に並び、
前記中間要素の前記中間側当接部は、前記連結部材の前記弾性体当接部と前記ダンパ装置の径方向に並ぶことを特徴とするダンパ装置。 - 請求項8または9に記載のダンパ装置において、
前記ダンパ装置の軸心と前記弾性体当接部との距離は、前記ダンパ装置の軸心と前記中間側当接部との距離よりも長いことを特徴とするダンパ装置。 - 請求項8から10の何れか一項に記載のダンパ装置において、
前記ダンパ装置の軸心と前記入力側当接部との距離と、前記ダンパ装置の軸心と前記中間側当接部との距離と、前記ダンパ装置の軸心と前記弾性体当接部とは、互いに異なることを特徴とするダンパ装置。 - 請求項8から11の何れか一項に記載のダンパ装置において、
前記中間要素は、前記外側弾性体をガイドする環状ガイド部を有する第1プレート部材と、前記中間側当接部を有すると共に前記第1プレート部材に連結される第2プレート部材とを含み、
前記入力要素の前記入力側当接部は、前記第1プレート部材に形成された開口部を介して前記環状ガイド部の内側に突出すると共に前記第2プレート部材の前記中間側当接部よりも径方向内側で前記外側弾性体と当接し、
前記連結部材の前記弾性体当接部は、前記中間側当接部よりも径方向外側で前記第3弾性体の端部と当接することを特徴とするダンパ装置。 - 請求項8から11の何れか一項に記載のダンパ装置において、
前記入力要素は、前記外側弾性体を囲んでガイドする弾性体包囲部を有する第1入力部材と、前記入力側当接部を有すると共に前記第1入力部材に連結される第2入力部材とを含み、
前記連結部材の前記弾性体当接部は、前記第1入力部材に形成された開口部を介して前記弾性体包囲部内に突出すると共に前記第2入力部材の前記入力側当接部よりも径方向内側で前記第3弾性体の端部と当接し、
前記中間要素は、前記中間側当接部が前記連結部材の前記弾性体当接部よりも径方向内側で前記外側弾性体および前記第3弾性体と当接可能となるように前記第1入力部材と前記第2入力部材との間に配置されることを特徴とするダンパ装置。 - 請求項1から13の何れか一項に記載のダンパ装置において、
前記外側弾性体は、アークコイルスプリングであり、前記内側弾性体は、直線型コイルスプリングであることを特徴とするダンパ装置。 - 請求項1から14の何れか一項に記載のダンパ装置において、
前記第3弾性体は、直線型コイルスプリングであることを特徴とするダンパ装置。 - 請求項1から15の何れか一項に記載のダンパ装置において、
前記ダンパ装置の共振周波数を“f”とし、前記ダイナミックダンパの共振周波数を“fdd”としたときに、0.90×f≦fdd≦1.10×fを満たすことを特徴とするダンパ装置。 - 請求項1から16の何れか一項に記載のダンパ装置において、
前記ダンパ装置に含まれる回転要素の何れかに連結された遠心振子式吸振装置を更に備えることを特徴とするダンパ装置。 - 請求項1から17の何れか一項に記載のダンパ装置において、
前記ダンパ装置の取付状態における前記外側弾性体の周方向長さを“Los”とし、前記ダンパ装置の取付状態における前記第3弾性体の周方向長さを“Lds”としたときに、1.0≦Los/Lds≦10.0を満たすことを特徴とするダンパ装置。 - 請求項1から18の何れか一項に記載のダンパ装置と、ポンプインペラと、該ポンプインペラと共に流体伝動装置を構成するタービンランナとを備えた発進装置において、
前記ダイナミックダンパは、前記第3弾性体の両端と当接するように設けられた複数の弾性体当接部を有すると共に前記タービンランナに固定される連結部材を含み、
前記ダイナミックダンパの前記質量体は、少なくとも前記タービンランナおよび前記連結部材により構成されることを特徴とする発進装置。 - 請求項1から19の何れか一項に記載のダンパ装置と、ポンプインペラと、該ポンプインペラと共に流体伝動装置を構成するタービンランナとを備えた発進装置において、
前記ダイナミックダンパは、前記タービンランナとは異なる専用の質量体を有することを特徴とする発進装置。
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