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1. EP3816468 - CENTRIFUGAL CLUTCH

Office
European Patent Office
Application Number 19800798
Application Date 08.05.2019
Publication Number 3816468
Publication Date 05.05.2021
Publication Kind A4
IPC
F16D 43/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Internally controlled automatic clutches
02actuated entirely mechanically
04controlled by angular speed
14with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
18with friction clutching members
F16H 9/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
9Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
02without members having orbital motion
04using belts, V-belts, or ropes
12engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
16using two pulleys, both built-up out of adjustable conical parts
18only one flange of each pulley being adjustable
CPC
F16D 43/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Automatic clutches
02actuated entirely mechanically
04controlled by angular speed
14with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
18with friction clutching members
F16H 9/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
9Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
02without members having orbital motion
04using belts, V-belts, or ropes
12engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
16using two pulleys, both built-up out of adjustable conical parts
18only one flange of each pulley being adjustable
F16D 2043/145
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Automatic clutches
02actuated entirely mechanically
04controlled by angular speed
14with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
145the centrifugal masses being pivoting
F16D 43/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Automatic clutches
02actuated entirely mechanically
04controlled by angular speed
14with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
F16D 43/211
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
43Automatic clutches
02actuated entirely mechanically
20controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
21with friction members
211with radially applied torque-limiting friction surfaces
Applicants FCC KK
Inventors AONO KAORU
YOKOMICHI YUTA
KINE YUTA
KATAOKA MAKOTO
Designated States
Priority Data 2018091930 11.05.2018 JP
Title
(DE) ZENTRIFUGALKUPPLUNG
(EN) CENTRIFUGAL CLUTCH
(FR) EMBRAYAGE CENTRIFUGE
Abstract
(EN) 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.
(FR) L'invention concerne un embrayage centrifuge permettant soit de réduire une poussée d'assistance, soit de maintenir constante une poussée d'assistance y compris en cas d'usure d'une masselotte d'embrayage. Cet embrayage centrifuge 200 est pourvu d'une plaque d'entraînement 210 qui est entraînée en rotation par une force d'entraînement d'un moteur. La plaque d'entraînement 210 est pourvue de broches de support de pivot 214 et de corps de came côté plaque 218. Les broches de support de pivot 214 supportent chacune de manière pivotante un poids d'embrayage 230 en étant ajustées dans un trou de coulissement de broche 231 de forme oblongue formé dans le poids d'embrayage 230. Les corps de came côté plaque 218 sont chacun constitués d'un rouleau cylindrique et sont en contact avec un corps de came côté poids 235 du poids d'embrayage 230. Le corps de came côté poids 235 est conçu de sorte à présenter une surface incurvée qui se traduit par le même angle de came, avant et après que se produise l'usure d'une masselotte d'embrayage 233, lorsque la masselotte d'embrayage 233 vient en contact avec une surface cylindrique d'un manchon d'embrayage externe 240.