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1. EP3401202 - BICYCLE CRANK TRANSMISSION APPARATUS

Office European Patent Office
Application Number 16889549
Application Date 26.12.2016
Publication Number 3401202
Publication Date 14.11.2018
Publication Kind A4
IPC
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
M
RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
9
Transmissions characterised by use of an endless chain, belt, or the like
04
of changeable ratio
06
using a single chain, belt, or the like
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
M
RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
11
Transmissions characterised by use of interengaging toothed wheels or frictionally-engaging wheels
04
of changeable ratio
14
with planetary gears
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41
Freewheels or freewheel clutches
06
with intermediate wedging coupling members between an inner and an outer surface
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
41
Freewheels or freewheel clutches
06
with intermediate wedging coupling members between an inner and an outer surface
063
the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
1
Toothed gearings for conveying rotary motion
28
with gears having orbital motion
32
in which the central axis of the gearing lies inside the periphery of an orbital gear
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
21
Gearings comprising primarily only links or levers, with or without slides
10
all movement being in, or parallel to, a single plane
16
for interconverting rotary motion and reciprocating motion
18
Crank gearings; Eccentric gearings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
30
Chain wheels
B62M 9/06
B62M 11/14
F16D 41/06
F16D 41/063
F16H 1/32
F16H 21/18
CPC
B62M 9/06
B62M 11/14
F16D 41/06
F16D 41/063
F16H 1/32
F16H 21/18
Applicants CONTAVELO CO LTD
Inventors JANG SA SEOK
Designated States
Priority Data 20160014885 05.02.2016 KR
2016015275 26.12.2016 KR
Title
(DE) FAHRRADKURBELGETRIEBEVORRICHTUNG
(EN) BICYCLE CRANK TRANSMISSION APPARATUS
(FR) APPAREIL DE TRANSMISSION À PÉDALIER DE BICYCLETTE
Abstract
(EN)
The present invention provides a bicycle crank transmission apparatus comprising a hollow shaft member; a base plate which is coupled to the aforementioned shaft member on one side and installed securely on a bottom bracket featuring a spindle on the other side; a chainring housing which is coupled to the aforementioned shaft member in a way that allows its rotation and has a ring gear installed securely inside; a reduction gear unit arranged in the middle of the aforementioned ring gear; a directly-coupled ratchet unit installed on the aforementioned ring gear; a crank cover where a coupling shaft coupled to the aforementioned spindle is perpendicularly provided in the center and where clutch ratchet teeth, which are engaged with the aforementioned directly-coupled ratchet unit, and directly-coupled ratchet teeth are vertically stacked on the internal wall surface; and a sun gear installed on the aforementioned coupling shaft in such a way that it only rotates in clockwise direction and partially engaged with the aforementioned reduction gear unit.

(FR)
La présente invention concerne un appareil de transmission à pédalier de bicyclette, lequel appareil peut mettre en œuvre un mécanisme de transmission utilisant un seul plateau de chaîne. Dans un mode de réalisation, l'appareil de transmission à pédalier de bicyclette comprend : un élément axial ayant un espace vide formé dans ce dernier; une plaque de base ayant une surface latérale accouplée à l'élément axial et une surface latérale opposée fixée à un support inférieur comportant un arbre rotatif; un carter de plateau de chaîne couplé à l'élément axial de manière à pouvoir tourner et ayant une couronne dentée installée de façon fixe à l'intérieur de ce dernier; une unité d'engrenage de réduction de vitesse disposée au centre de la couronne dentée; une unité de rochet à couplage direct installée sur la couronne dentée; un capot de pédalier ayant, au centre de ce dernier, un arbre de couplage vertical couplé à l'arbre rotatif, et, sur la surface de paroi interne de ce dernier, des dents de scie de rochet d'embrayage et des dents de scie de rochet à couplage direct formées en parallèle dans la direction de la hauteur; et une roue solaire montée sur l'arbre de couplage pour tourner uniquement dans le sens des aiguilles d'une montre.