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1. US20210108687 - Centrifugal clutch

Office
United States of America
Application Number 17047938
Application Date 08.05.2019
Publication Number 20210108687
Publication Date 15.04.2021
Grant Number 11149805
Grant Date 19.10.2021
Publication Kind B2
IPC
F16D 43/14
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
F16D 43/21
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
20controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
21with friction 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 43/14
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
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
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
Applicants Kabushiki Kaisha F.C.C.
Inventors Kaoru Aono
Yuta Yokomichi
Yuta Kine
Makoto Kataoka
Agents Rankin, Hill & Clark LLP
Priority Data 2018091930 11.05.2018 JP
Title
(EN) Centrifugal clutch
Abstract
(EN)

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.