Exedy Corporation

Keisuke Fujioka

Hideki Hashimoto

Takashi Harada

Kozo Yamamoto

Tomoki Hada

Kazuhiko Kawaguchi

A power transmitting part for transmitting power has an annular main body section and a transmitting section. The transmitting section has a first protruding section extending outward in a radial direction from the main body section and a second protruding section extending toward a first side in an axial direction from a circumferential-direction-facing edge portion of the first protruding section.

Power transmission part, damper mechanism, and flywheel assembly

A first flywheel assembly a first flywheel, a second flywheel, a first spring set, a first spring seat, and a second spring set. The first spring set is arranged between the first flywheel and the second flywheel in a pre-compressed state. The first spring seat is a member that supports an end portion of the first spring set and is pushed in a radially outward direction against the first flywheel. The second spring set is a member having a lower stiffness than a stiffness of the first spring set and is arranged between the second flywheel and the first spring set in a pre-compressed state such that it acts in series with the first spring set.

Flywheel assembly

A damper mechanism has a first rotating body, a second rotating body, at least one first elastic member, and at least one second elastic member. The second rotating body is disposed rotatably with respect to the first rotating body. The first elastic member is disposed so as to link elastically the first rotating body and the second rotating body in the rotation direction, and to operate only on the positive side of the torsional characteristics. The second elastic member is disposed so as to link elastically the first rotating body and the second rotating body in the rotation direction, and operate only on the negative side of the torsional characteristics.

Damper mechanism

A dampening disk assembly stabilizes friction generated by friction mechanisms within a first range of torsional angle in a separated hub type of clutch disk assembly. An intermediate member (,) is disposed axially between a clutch plate,and a retaining plate,The first axial side of the intermediate member is supported by the clutch plate,The intermediate member (,) has an intermediate plate,and a supporting member or fixing plate,with a first part,and a supporting portion,at an inner circumferential portion. An output hub,has a flange 64 disposed axially facing the supporting portion,The intermediate member (,) and the hub,are axially supported by the clutch plate,A first friction mechanism,is formed between the fixing plate or supporting member,and the retaining plate,. The first friction mechanism,includes a friction washer,and a first cone spring,A second friction mechanism,is formed between the flange,of the hub,and the supporting portion,of the fixing plate,. The second friction mechanism,includes a bushing,which connects with the hub,in a relatively non-rotatable and axially-movable manner and abuts on the supporting portion,and a second cone spring,disposed axially between the flange,and the bushing

Dampening disk assembly

A dampening disk assembly,is provided in a clutch assembly,to make it possible to easily change the level of hysteresis torque when small torsion vibrations are generated. Thus, the level of hysteresis torque can easily be changed to accommodate a wide variety of vehicles. In the dampening disk assembly,a friction washer,is disposed between an input plate,and a hub flange,The friction washer,is engaged with the input plate,so that torque may be transferred from the input plate,to the hub flange,A cone spring,is disposed between the friction washer,and the input plate,in an axial direction to give resiliency to both members in the axial direction. A fixing plate,contacts the friction washer,in the axial direction. A spacer,is disposed between the fixing plate,and the hub flange,in the axial direction so as to transmit torque. A first gap is formed either between the spacer,and the fixing plate,in a rotational direction or between the spacer,and the hub flange,in the rotational direction.

A clutch disk assembly,is provided between an input shaft and an output shaft to selectively transmit rotation therebetween. The clutch disk assembly,is provided with a dampening mechanism,to provide smooth transition during engagement and disengagement of the clutch disk assembly. The dampening mechanism,has more durable first and second retaining plates,and,with a rectangular window portion for transmitting torque. The first and second retaining plates,and,are used to support first springs,of the clutch disk assembly. The first and second retaining plate,includes a plate main body having a disk shape and a second receptacle,to support first springs,. The second receptacles,are formed from that plate main body. The second receptacles,project in an axial direction from the plate main body so as to be able to seat the first spring,. The second receptacles,include axially supporting parts,to support an axially outside part of the first springs,, a radially outside supporting parts,to support a radially outside part of the first springs,, and second supporting parts,formed at both sides in a circular direction to support both ends of the first springs,. The radially outside supporting part,includes an intermediate part,, and curved indented end parts,which is located outward in a radial direction from the intermediate part,. The first and second retaining plates,and,are designed to maintain the thickness of the curved indented end parts,of the radially outside supporting parts,, thereby maintaining the durability of the second receptacles

Dampening disk assembly with spring retaining plate

A dampening disk assembly is provided with a dampening mechanism,. The dampening mechanism,has a simplified structure with a spring and a friction generating mechanism, which provides a characteristic of a first step in a separated hub type dampening disk assembly. The dampening disk assembly is also provided with an output hub,, a pair of input plates,and,, an intermediate plate,and a first elastic member,. The intermediate plate,is disposed between the pair of input plates,and,. The first elastic member,couples the pair of input plates,and,and the intermediate plate,elastically in a rotary direction. The output hub,is disposed on an inner circumferential side of the pair of input plates,and,and the intermediate plate,. The dampening mechanism,couples the output hub,and the intermediate plate,elastically in a rotary direction, and includes a first and second portion,and,and an elastic portion,. The first portion,is connected with an outer circumference of the output hub,in a relatively non-rotatably but axially movable manner. The first portion,includes a first friction face and a first supporting part,. The second portion,is connected with the intermediate plate,relatively in a non-rotatable manner. The second portion,includes a second friction face which contacts the first friction face, and a second supporting part,corresponding to the first supporting part,. The rotationally end part of the elastic portion,is supported by the first and second supporting parts,and,and couples the first and second portions,and,in a rotary direction.

A clutch disk assembly,includes a second plate,an output rotary member,an intermediate body,an intermediate member,second springs,third springs,and a damper,The intermediate body,is disposed radially outside the output rotary member,The intermediate member,is disposed near the output rotary member,and the intermediate body,The second plate,is located on a second axial side of the intermediate body,The second springs,circumferentially and elastically couple the plate,and the intermediate body,together. The third springs,circumferentially and elastically couple the intermediate body,and the second plate,together. The damper,is axially shifted from the intermediate body,The damper,has first springs,circumferentially and elastically coupling the output rotary member,and the plate,together.

Damper disk assembly

A dampening disk assembly is provided to ease a control of a friction generated by two kinds of friction generating mechanisms in a separated hub type of clutch disk assembly. A second dampening mechanism 6 is a mechanism to generate a friction between a separated flange 18 and a hub 3 when both of the portions rotate relatively. The second dampening mechanism 6 includes a bushing 19 and a fixing plate 20. The bushing 19 rotates with the hub 3 in a body. The fixing plate 20 rotates with the separated flange 18 in a body. The fixing plate 20 includes a first disk-shaped part 71 and a second disk-shaped plate 73. The second disk-shaped plate 73 generates a friction when the hub 3 and the separated flange 18 rotates relatively. The first disk-shaped part 71 generates a friction when the separated flange 18 and both a clutch plate 31 and a retaining plate 32 rotate relatively. The friction generated by the first disk-shaped portion 71 is larger than that generated by the second disk-shaped portion 73.

A clutch disk assembly 1 includes a second plate 13, an output rotary member 4, an intermediate body 3, an intermediate member 9b, second springs 10, third springs 5 and a damper 8. The intermediate body 3 is disposed radially outside the output rotary member 4. The intermediate member 9b is disposed near the output rotary member 4 and the intermediate body 3. The second plate 13 is located on a second axial side of the intermediate body 3. The second springs 10 circumferentially and elastically couple the plate 9b and the intermediate body 3 together. The third springs 5 circumferentially and elastically couple the intermediate body 3 and the second plate 13 together. The damper 8 is axially shifted from the intermediate body 3. The damper 8 has first springs 7 circumferentially and elastically coupling the output rotary member 4 and the plate 9b together.

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Shijonawate, Japan

Keisuke Fujioka