公开(公告)号：US20200158193A1

公开(公告)日：2020-05-21

申请号：US16713824

申请日：2019-12-13

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Kaoru AONO ,  Yuta KINE ,  Yuta YOKOMICHI ,  Makoto KATAOKA

IPC: F16D43/18

Abstract: A centrifugal clutch 200 includes a first drive plate 210 rotationally driven directly by a driving force of an engine and a second drive plate 220 frictionally in contact with the first drive plate 210. The first drive plate 210 includes a bulging body 215 on a supporting portion 214 bulging toward the second drive plate 220. The second drive plate 220 is rotationally driven together with the first drive plate 210 while allowing rotational displacement relative to the first drive plate and includes clutch weights 230. The bulging body 215 is made of a cylindrical roller. The clutch weight 230 is formed with a driven portion 232. The driven portion 232 has a pressing body 232a in contact with the bulging body 215. The pressing body 232a obliquely extends rearwardly and outwardly in a rotational drive direction of the first drive plate 210.

公开(公告)号：US20200370607A1

公开(公告)日：2020-11-26

申请号：US16960824

申请日：2018-10-25

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Kaoru AONO ,  Masayuki ICHII ,  Yuta YOKOMICHI ,  Yuta KINE ,  Makoto KATAOKA

IPC: F16D43/18

Abstract: Provided is a centrifugal clutch configured so that a clutch capacity can be increased with a simple configuration. A centrifugal clutch 200 includes a drive plate 210 to be directly rotatably driven by drive force of an engine. The drive plate 210 includes each of swing support pins 214 and guide portions 216. The swing support pin 214 is fitted in a pin slide hole 221 formed at a clutch weight 220 to swingably support the clutch weight 220. The guide portion 216 is formed in a cutout shape or a hole shape extending inclined to an outer rear side in a rotary drive direction of the drive plate 210. A protruding body 224 of the clutch weight 220 contacts the guide portion 216. The pin slide hole 221 is formed in a long hole shape allowing backward displacement of the clutch weight 220 in the rotary drive direction of the drive plate 210. The protruding body 224 is formed to protrude from the clutch weight 220.

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：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：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：US20190338813A1

公开(公告)日：2019-11-07

申请号：US16344710

申请日：2017-09-22

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Kaoru AONO ,  Yuta YOKOMICHI ,  Yuta KINE ,  Makoto KATAOKA

IPC: F16D43/18

Abstract: A centrifugal clutch that can suppress the inclination of a clutch weight, realize smooth oscillation, and suppress the uneven wear of a clutch shoe is provided. A drive plate (210) slidably supports a clutch weight (230) and also supports a projection body (218) via a projection body support pin (216). The clutch weight (230) includes a first spring attachment part (231) and a second spring attachment part (234) to which two clutch springs (235) are attached formed, and a driven part (238) that comes into contact with the projection body (218) formed. The projection body (218) and the driven part (238) are formed in a manner that a projection body range (TE) where the projection body (218) and the driven part (238) come into contact overlaps action positions (FP1) and (FP2) of forces (F1) and (F2) of the clutch spring (235) acting on the clutch weight (230) in the thickness direction of the clutch weight (230).

公开(公告)号：US20190072140A1

公开(公告)日：2019-03-07

申请号：US15765479

申请日：2016-09-02

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Kaoru AONO ,  Yuta KINE ,  Yuta YOKOMICHI ,  Makoto KATAOKA

IPC: F16D43/18

Abstract: A centrifugal clutch 200 includes a first drive plate 210 rotationally driven directly by a driving force of an engine and a second drive plate 220 frictionally in contact with the first drive plate 210. The first drive plate 210 includes a bulging body 215 on a supporting portion 214 bulging toward the second drive plate 220. The second drive plate 220 is rotationally driven together with the first drive plate 210 while allowing rotational displacement relative to the first drive plate and includes clutch weights 230. The bulging body 215 is made of a cylindrical roller. The clutch weight 230 is formed with a driven portion 232. The driven portion 232 has a pressing body 232a in contact with the bulging body 215. The pressing body 232a obliquely extends rearwardly and outwardly in a rotational drive direction of the first drive plate 210.