公开(公告)号：US11773921B2

公开(公告)日：2023-10-03

申请号：US18019334

申请日：2021-07-29

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16H21/08 ,  F16D21/08 ,  F16D13/52 ,  F16D43/12

CPC classification number: F16D21/08 ,  F16D13/52 ,  F16D43/12

Abstract: In a power transmission apparatus, a second clutch includes a divider dividing driving clutch plates and driven clutch plates in an axial direction such that a first region adjacent to a clutch pressure plate and a second region adjacent to a centrifugal clutch are defined. The second clutch presses the driving clutch plates and the driven clutch plates in the first region and the second region against each other during operation of the centrifugal clutch, and presses the driving clutch plates and the driven clutch plates in the first region against each other during operation of a back torque transmission cam.

公开(公告)号：US20220341475A1

公开(公告)日：2022-10-27

申请号：US17861228

申请日：2022-07-10

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Makoto Kataoka ,  Masataka Murai

IPC: F16D43/12 ,  F16D13/52 ,  F16D43/206

Abstract: A power transmission device has a first clutch member 4a coupled to an output member 3. A second clutch member 4b has a plurality of driven-side clutch plates 7. A back-torque transmitting cam presses the drive-side clutch plates 6 and the driven-side clutch plates 7 against each other by moving the second clutch member 4b when a rotational force is input to the first clutch member 4a. A cushioning member 12 is interposed between the first clutch member 4a and the second clutch member 4b. The cushioning member 12, by being compressed, applies an urging force while allowing movements of an interlocking member 9 and a pressure member 5 in a process where the interlocking member 9 moves and the pressure member 5 moves from the inactive position toward the active position.

公开(公告)号：US12098754B2

公开(公告)日：2024-09-24

申请号：US18076451

申请日：2022-12-07

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D43/10 ,  B60K1/02 ,  F16D13/54 ,  F16D43/12 ,  F16D43/30 ,  F16D47/00 ,  F16D13/52

CPC classification number: F16D43/10 ,  B60K1/02 ,  F16D13/54 ,  F16D43/12 ,  F16D43/30 ,  F16D47/00 ,  F16D13/52

Abstract: During movement of a mass of a centrifugal clutch a radially inner position to a radially outer position and a resulting increase in torque transmitted from an input gear to an output shaft, a power transmission apparatus includes a first torque region where the apparatus restricts operation of a pressing assist cam and a second torque region where the apparatus allows operation of the pressing assist cam.

公开(公告)号：US11885382B2

公开(公告)日：2024-01-30

申请号：US18076449

申请日：2022-12-07

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D43/10 ,  B60K17/02 ,  F16D47/00 ,  F16D13/54 ,  F16D43/12 ,  F16D43/30 ,  F16D13/52

CPC classification number: F16D43/10 ,  B60K17/02 ,  F16D13/54 ,  F16D43/12 ,  F16D43/30 ,  F16D47/00 ,  F16D13/52

Abstract: During movement of a mass of a centrifugal clutch a radially inner position to a radially outer position and a resulting increase in torque transmitted from an input gear to an output shaft, a power transmission apparatus includes a first torque region where the apparatus restricts operation of a pressing assist cam and a second torque region where the apparatus allows operation of the pressing assist cam.

公开(公告)号：US11708866B2

公开(公告)日：2023-07-25

申请号：US17877988

申请日：2022-07-31

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Makoto Kataoka ,  Masataka Murai

IPC: F16D13/56 ,  F16D43/12

CPC classification number: F16D13/56 ,  F16D43/12 ,  F16D2013/565

Abstract: A power transmission device has an interlocking member 9 moving a pressure member 5 from an inactive position to an active position. A release spring (m) applies an urging force, while allowing movements of the interlocking member 9 and the pressure member 5, until drive-side clutch plates 6 and driven-side clutch plates 7 reach an engaged state before the drive-side clutch plates 6 and the driven-side clutch plates 7 are pressed against each other. A clutch spring 11 is compressed in a process where the interlocking member 9 moves after the drive-side clutch plates 6 and the driven-side clutch plates 7 have reached the engaged state. The clutch spring applying a press-contact force between the drive-side clutch plates 6 and the driven-side clutch plates 7 while allowing movements of the interlocking member 9 and the pressure member 5. The set load of the clutch spring 11 is set to be smaller than the maximum load of the release spring (m).

公开(公告)号：US11384801B2

公开(公告)日：2022-07-12

申请号：US17336385

申请日：2021-06-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Makoto Kataoka ,  Masataka Murai

IPC: F16D43/12 ,  F16D13/52 ,  F16D43/206 ,  F16D23/12

Abstract: A power transmission device has a clutch member, a pressure member 5, a weight member 8, an interlocking member 9 and a bearing holding member C coupled to an activation member 10. The bearing holder member C holds a bearing B1 interposed between the activation member 10 and the pressure member 5. The bearing holding member C has a cylindrical member with one open end. An open end portion Ca is fit into and attached to a recessed portion 4d formed in a first clutch member 4a.

公开(公告)号：US11773923B2

公开(公告)日：2023-10-03

申请号：US17918404

申请日：2020-09-14

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D43/12 ,  B60K17/02 ,  F16D13/52 ,  F16D47/00

CPC classification number: F16D43/12 ,  B60K17/02 ,  F16D13/52 ,  F16D47/00 ,  F16D2300/10 ,  F16D2300/12

Abstract: In a power transmission apparatus, a centrifugal clutch includes a holder, a press, and springs to urge masses from a radially outer position to a radially inner position. The masses are each housed in an associated one of housing portions arranged in a circumferential direction of the holder such that the masses are radially movable. More than one spring is provided in the circumferential direction between an inner peripheral wall surface of each of the housing portions and an associated one of the masses to urge the associated mass from the radially outer position to the radially inner position.

公开(公告)号：US11703093B2

公开(公告)日：2023-07-18

申请号：US17918396

申请日：2020-09-14

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D13/54 ,  F16D43/12 ,  F16D43/30

CPC classification number: F16D13/54 ,  F16D43/12 ,  F16D43/30

Abstract: During movement of a mass of a centrifugal clutch a radially inner position to a radially outer position and a resulting increase in torque transmitted from an input gear to an output shaft, a power transmission apparatus includes a first torque region where the apparatus restricts operation of a pressing assist cam and a second torque region where the apparatus allows operation of the pressing assist cam.

公开(公告)号：US11661981B2

公开(公告)日：2023-05-30

申请号：US17860341

申请日：2022-07-08

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D43/12 ,  F16D13/52 ,  F16D43/206 ,  B60K17/02 ,  F16D67/02

CPC classification number: F16D43/12 ,  B60K17/02 ,  F16D13/52 ,  F16D43/206 ,  F16D67/02

Abstract: A power transmission device has a first pressure member (5a), a second pressure member (5b) and a back-torque transmitting cam. The first pressure member (5a) presses the drive-side clutch plates (6) and the driven-side clutch plates (7) against each other. The second pressure member (5b) releases a press-contact force between the drive-side clutch plates (6) and the driven-side clutch plates (7). The back-torque transmitting cam moves the second pressure member (5b) relative to the first pressure member (5a) to keep pressing the drive-side clutch plates (6) and the driven-side clutch plates (7) against each other when a rotational force is input to the clutch member (4), via the output shaft (3), in a process where the weight member (8) moves from the radially-outer position to the radially-inner position and the first pressure member (5a) moves to follow the interlocking member (9).

公开(公告)号：US11434966B2

公开(公告)日：2022-09-06

申请号：US17336479

申请日：2021-06-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong Chen ,  Katsu Yoshimoto

IPC: F16D43/12 ,  F16D67/02 ,  B60K17/02 ,  F16D13/52 ,  F16D43/206

Abstract: A power transmission device has a first pressure member (5a), a second pressure member (5b) and a back-torque transmitting cam. The first pressure member (5a) presses the drive-side clutch plates (6) and the driven-side clutch plates (7) against each other. The second pressure member (5b) releases a press-contact force between the drive-side clutch plates (6) and the driven-side clutch plates (7). The back-torque transmitting cam moves the second pressure member (5b) relative to the first pressure member (5a) to keep pressing the drive-side clutch plates (6) and the driven-side clutch plates (7) against each other when a rotational force is input to the clutch member (4), via the output shaft (3), in a process where the weight member (8) moves from the radially-outer position to the radially-inner position and the first pressure member (5a) moves to follow the interlocking member (9).