公开(公告)号：US20190234470A1

公开(公告)日：2019-08-01

申请号：US16339660

申请日：2017-08-08

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Yuta YOKOMICHI ,  Kaoru AONO

IPC: F16D43/18

CPC classification number: F16D43/18 ,  F16D2043/145

Abstract: The present invention relates to a centrifugal clutch (100). The centrifugal clutch (100) includes a drive plate (110) that is rotationally driven directly by the driving force of the engine. The drive plate (110) includes a swing support pin (113) that supports a clutch shoe (123) in a swinging state with respect to a clutch outer part (130), and a spring support (115) that supports a torsion spring (116). The spring support (115) is provided in a standing state on a base (111) adjacent to one distal end (121a) of both end parts of a clutch weight (120) in the circumferential direction that faces a tubular surface (131) of the clutch outer part (130). Both end parts (116b) and (116c) of the torsion spring (116) are respectively hooked on the distal end (121a) of one clutch weight (120) and a proximal end (121b) of the other clutch weight (120) of the two clutch weights (120).

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.

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：US20210115986A1

公开(公告)日：2021-04-22

申请号：US17047979

申请日：2019-05-14

Applicant: Kabushiki Kaisha F.C.C.

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

IPC: F16D43/18

Abstract: Provided is a centrifugal clutch configured so that a clutch weight can be smoothly displaced without interference with backward displacement of the clutch weight in a rotary drive direction of a drive plate and assist thrust can be stably generated. A centrifugal clutch 200 includes, through swing support pins 214, clutch weights 230 on a drive plate 210 to be rotatably driven by drive force of an engine, and includes plate-side cam bodies 218 and dampers 221. The clutch weight 230 turnably displaces to a clutch outer 240 side through the swing support pin 214, and includes a weight-side cam body 235 configured to climb on the plate-side cam body 218 and a damper groove 236. The damper groove 236 is formed such that a groove width W2 for fitting the damper 221 when the clutch weight 230 is at a clutch-ON position is wider to a front side in a rotary drive direction of the drive plate 210 than a groove width W1 for fitting the damper 221 when the clutch weight 230 is at a clutch-OFF position.

公开(公告)号：US20210079961A1

公开(公告)日：2021-03-18

申请号：US17050700

申请日：2019-05-24

Applicant: Kabushiki Kaisha F.C.C.

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

IPC: F16D43/18

Abstract: Provided is a centrifugal clutch configured so that tilt of a clutch weight can be more effectively reduced to reduce occurrence of uneven wear of the clutch weight and a clutch shoe and smoothly swing the clutch weight. A centrifugal clutch 200 includes clutch weights 230 and plate-side cam bodies 218 on a drive plate 210 to be rotatably driven by drive force of an engine. The clutch weight 230 turnably displaces to a clutch outer 240 side, and includes a weight-side cam body 238 configured to climb on the plate-side cam body 218. In the clutch weight 230, each of a center portion CCP in a cam contact area CE between the plate-side cam body 218 and the weight-side cam body 238, the positions FP1, FP2 of action of force F1, F2 of a coupling spring 235, and a center portion SCP of a clutch shoe 236 in a thickness direction thereof is coincident with a barycentric position WCP of the clutch weight 230.

公开(公告)号：US20190234495A1

公开(公告)日：2019-08-01

申请号：US16339667

申请日：2017-08-08

Applicant: Kabushiki Kaisha F.C.C.

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

IPC: F16H9/18 ,  F16H55/56 ,  F16H61/662 ,  F16H55/49

CPC classification number: F16H9/18 ,  F16H55/49 ,  F16H55/56 ,  F16H61/662

Abstract: A continuously variable transmission that can suppress the size increase, complication, and weight increase of the device configuration is provided. A continuously variable transmission 100 includes a drive pulley 101 that is connected to a crank shaft 90. The drive pulley 101 includes a fixed drive plate 102 that is rotationally driven directly by driving force of an engine and a movable drive plate 110 that approaches or become separated with respect to the fixed drive plate 102 in accordance with centrifugal force by rotational drive of the crank shaft 90. A displacement resistor 120 including a rod body abuts on the movable drive plate 110 in the state in which the fixed drive plate 102 is penetrated. The displacement resistor 120 is pressed by a resistance spring 134 of a pressing mechanism 130 provided outside the fixed drive plate 102. In the pressing mechanism 130, a variable mechanism 140 adjusts pressing force by the resistance spring 134.

公开(公告)号：US20190186558A1

公开(公告)日：2019-06-20

申请号：US16316852

申请日：2017-06-26

Applicant: Kabushiki Kaisha F.C.C.

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

IPC: F16D43/18 ,  F16D43/22

CPC classification number: F16D43/18 ,  F16D43/22 ,  F16D2043/145

Abstract: Provided is a centrifugal clutch having a simple configuration and configured so that a clutch capacity can be increased. 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 swing support pins (214) and protrusions (218). The swing support pin (214) is fitted in a pin slide hole (231) formed at a clutch weight (230), and swingably supports the clutch weight (230). The protrusion (218) includes a cylindrical roller, and contacts a driven portion (235) of the clutch weight (230). The pin slide hole (231) is formed in a long hole shape allowing the clutch weight (230) to displace backward in a rotary drive direction of the drive plate (210). The driven portion (235) is formed to extend inclined outward to a rear side in the rotary drive direction of the drive plate (210).

公开(公告)号：US20210108687A1

公开(公告)日：2021-04-15

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

IPC: F16D43/21

Abstract: Provided is a centrifugal clutch configured so that assist thrust can be maintained constant or can be decreased even when a clutch shoe is abraded. The centrifugal clutch 200 includes a drive plate 210 to be rotatably driven by drive force of an engine. The drive plate 210 includes each of swing support pins 214 and the plate-side cam bodies 218. The swing support pin 214 is fitted in a long-hole-shaped pin slide hole 231 formed at a clutch weight 230 to swingably support the clutch weight 230. The plate-side cam body 218 includes a cylindrical roller, and a weight-side cam body 235 of the clutch weight 230 contacts the plate-side cam body 218. The weight-side cam body 235 is formed as such a curved surface that a cam angle when a clutch shoe 233 contacts a cylindrical surface of a clutch outer 240 is the same between before and after abrasion of the clutch shoe 233 progresses.

公开(公告)号：US20200340540A1

公开(公告)日：2020-10-29

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

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 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.