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公开(公告)号：US20220373040A1
公开(公告)日：2022-11-24
申请号：US17877977
申请日：2022-07-31
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Yoshihiko Ozawa , Han Hiong Chen , Makoto Kataoka , Masataka Murai
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).
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公开(公告)号：US11073184B2
公开(公告)日：2021-07-27
申请号：US16804069
申请日：2020-02-28
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Yoshihiko Ozawa , Han Hiong Chen , Makoto Kataoka , Masataka Murai , Kaoru Aono , Yuta Kine , Yuta Yokomichi
IPC: F16D43/22 , F16D11/00 , F16D19/00 , F16D21/08 , F16D25/0638 , F16D43/21 , F16D43/12 , F16D13/52 , F16D13/56 , F16D23/12
Abstract: A power transmission device has a back torque transmission cam that brings driving clutch plates 6 and driven clutch plates 7 into press contact with each other. This occurs by moving a second clutch member 4b when a rotational force is input to a first clutch member 4a, via the output shaft 3. A pressure member 5 is located at a non-actuation position. A back torque transmission cam can hold abutment between an interlocking member 9 and weight member 8 by moving the second clutch member 4b in a direction of being brought into proximity to the interlocking member 9.
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公开(公告)号：US10927905B2
公开(公告)日：2021-02-23
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).
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公开(公告)号：US10539197B2
公开(公告)日：2020-01-21
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
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.
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公开(公告)号：US11732761B2
公开(公告)日：2023-08-22
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
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).
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Patent Agency Ranking
公开(公告)号：US11460077B2
公开(公告)日：2022-10-04
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
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).
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公开(公告)号：US11415190B2
公开(公告)日：2022-08-16
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: F16D43/12 , F16D67/02 , B60K17/02 , 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.
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公开(公告)号：US11346407B2
公开(公告)日：2022-05-31
申请号：US16960482
申请日：2018-10-26
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Kaoru Aono , Yuta Yokomichi , Yuta Kine , Makoto Kataoka
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 protruding bodies 218. The swing support pin 214 is fitted in a pin slide hole 231 formed at a clutch weight 230 to swingably support the clutch weight 230. The protruding body 218 is formed as a cylindrical roller. A driven portion 235 of the clutch weight 230 contacts the protruding body 218. The pin slide hole 231 is formed in a long hole shape allowing backward displacement of the clutch weight 230 in the rotary drive direction of the drive plate 210. The driven portion 235 is formed to extend inclined toward an outer rear side in a rotary drive direction of the drive plate 210.
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公开(公告)号：US11149805B2
公开(公告)日：2021-10-19
申请号：US17047938
申请日：2019-05-08
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Kaoru Aono , Yuta Yokomichi , Yuta Kine , Makoto Kataoka
Abstract: A centrifugal clutch is configured so that assist thrust can be maintained constant or can be decreased even when a clutch shoe is abraded. The centrifugal clutch includes a drive plate to be rotatably driven by drive force of an engine. The drive plate includes each of swing support pins and the plate-side cam bodies. The swing support pin is fitted in a long-hole-shaped pin slide hole formed at a clutch weight to swingably support the clutch weight. The plate-side cam body includes a cylindrical roller, and a weight-side cam body of the clutch weight contacts the plate-side cam body. The weight-side cam body is formed as such a curved surface that a cam angle when a clutch shoe contacts a cylindrical surface of a clutch outer is the same between before and after abrasion of the clutch shoe progresses.
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公开(公告)号：US11118635B2
公开(公告)日：2021-09-14
申请号：US16804032
申请日：2020-02-28
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Yoshihiko Ozawa , Han Hiong Chen , Makoto Kataoka , Masataka Murai , Kaoru Aono , Yuta Kine , Yuta Yokomichi
IPC: F16D21/08 , F16D11/10 , F16D19/00 , F16D25/0638
Abstract: A power transmission device has a back torque transmission cam that brings driving clutch plates 6 and driven clutch plates 7 into press contact with each other. A second clutch member 4b is moved when a rotational force is input to a first clutch member 4a via the output shaft 3. The pressure member 5 is located at a non-actuation position. A torque transmission portion transmits a rotational force transmitted to the second clutch member 4b to the first clutch member 4a not via the back torque transmission cam.
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