公开(公告)号：US20210285510A1

公开(公告)日：2021-09-16

申请号：US17336479

申请日：2021-06-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko OZAWA ,  Han Hiong CHEN ,  Kutsu YOSHIMOTO

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

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：US20200340536A1

公开(公告)日：2020-10-29

申请号：US16925724

申请日：2020-07-10

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Junichi Nishikawa ,  Katsu YOSHIMOTO ,  Han Hiong CHEN ,  Yoshihiko OZAWA

IPC: F16D13/52 ,  F16D23/12

Abstract: A power transmission device has a pressure member 5, drive-side clutch plates, driven-side clutch plates, a clutch spring 10, a separate receiving member 11, and a back-torque limiting cam. A radially-outside restricting portion restricts radially-outward movement of the receiving member 11 relative to the pressure member 5. This maintains clearance t between a side surface 11d of the receiving member 11 and an inner peripheral wall 4e of a clutch member 4.

公开(公告)号：US20250027541A1

公开(公告)日：2025-01-23

申请号：US18907738

申请日：2024-10-07

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko OZAWA ,  Han Hiong CHEN ,  Katsu YOSHIMOTO

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

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：US20230279908A1

公开(公告)日：2023-09-07

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: F16D21/08 ,  F16D43/12 ,  F16D13/52

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

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：US20230272825A1

公开(公告)日：2023-08-31

申请号：US18019309

申请日：2021-07-29

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko OZAWA ,  Han Hiong CHEN ,  Katsu YOSHIMOTO

IPC: F16D13/52 ,  F16D13/74 ,  F16D13/72

CPC classification number: F16D13/52 ,  F16D13/74 ,  F16D13/72 ,  F16D2127/02

Abstract: A power transmission apparatus includes a clutch connected to an output shaft to rotate a wheel of a vehicle, and a clutch pressure plate movable between an operating position where driving and driven clutch plates are pressed against each other so as to enable transmission of a driving force of an engine to the wheel and a non-operating position where a pressing force exerted on the driving and driven clutch plates is released so as to cut off transmission of the driving force of the engine to the wheel. One of the driven clutch plates is attached to a second clutch, and another is attached to the clutch pressure plate. The clutch pressure plate includes an oil flow passage through which oil flows to the driven clutch plate attached to the clutch pressure plate.

公开(公告)号：US20230102112A1

公开(公告)日：2023-03-30

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 ,  F16D47/00 ,  B60K17/02

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：US20200158194A1

公开(公告)日：2020-05-21

申请号：US16751453

申请日：2020-01-24

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Makoto Kataoka ,  Go ANDO ,  Yoshihiko OZAWA ,  Han Hiong CHEN

IPC: F16D43/21 ,  F16D13/56 ,  F16D7/02

Abstract: A transmission device has a clutch spring (8). The clutch spring (8) can generate rotational resistance that occurs when a pressure member (5) rotates relative to a clutch member (4) due to clearance between cam surfaces of a press-contact assisting cam or a back torque limiting cam. Thus, one end (8a) of the clutch spring (8) slides on a surface (10a) of a restricting member 10. A side surface (8b) of the clutch spring (8) is held in the longitudinal direction.