公开(公告)号：US20170184156A1

公开(公告)日：2017-06-29

申请号：US15430451

申请日：2017-02-11

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Makoto KATAOKA ,  Han Hiong CHEN ,  Kaoru AONO

IPC: F16D23/12 ,  F16D13/52

CPC classification number: F16D23/12 ,  F16D7/027 ,  F16D13/02 ,  F16D13/52 ,  F16D43/21 ,  F16D2013/565 ,  F16D2023/123

Abstract: A power transmitting apparatus has a clutch member and a pressure member. The cam surfaces of the pressure-contact assist cam face each other. The cam surfaces of the back torque limiter cam face each other. A receiving portion for a clutch spring (10) on the pressure member (5) side has a receiving member (11) separate from the pressure member (5). A first cam surface (C1) and a second cam surface (C2), constituting the back torque limiter cam, are, respectively, formed on the receiving member (11) and the clutch member (4). A third cam surface (C3) and a fourth cam surface (C4), constituting the pressure-contact assist cam, are, respectively, formed on the pressure member (5) and the clutch member (4).

公开(公告)号：US20240344570A1

公开(公告)日：2024-10-17

申请号：US18751443

申请日：2024-06-24

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

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：US20220389974A1

公开(公告)日：2022-12-08

申请号：US17877982

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

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：US20220341474A1

公开(公告)日：2022-10-27

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

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：US20210356000A1

公开(公告)日：2021-11-18

申请号：US17336447

申请日：2021-06-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko OZAWA ,  Han Hiong CHEN ,  Makoto KATAOKA ,  Masataka MURAI

IPC: F16D13/56

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：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：US20210285509A1

公开(公告)日：2021-09-16

申请号：US17336387

申请日：2021-06-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yoshihiko Ozawa ,  Han Hiong CHEN ,  Makoto KATAOKA ,  Masataka MURAI

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

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：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.