FR2589539A1

FR2589539A1 - Hydraulically controlled pneumatic clutch

Info

Publication number: FR2589539A1
Application number: FR8516705A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-11-05
Filing date: 1985-11-05
Publication date: 1987-05-07

Abstract

The invention relates to a clutch device, of conical internal shape, whose wall is covered with a high strength substance of the rubber type, consisting of an engine flywheel 1 of conical shape, with a rubber-type wall 2, of a solid cone 3 part which drives the shaft of the wheels, covered with an inflatable assembly 4. At its centre 5 is placed the hydraulic feed circuit 6, assisted 7 and actuated 8 by the clutch pedal. An offset may be carried out with respect to the axis 5 of the inflatable clutch engagement assembly 4, so as to drive by gearing 9 and to transmit the drive to the wheels. The advantage of this device is to soften the clutch action and to permit greater durability, with respect to conventional clutch disks. It may also be envisaged to obtain speed ratios (gears) by separating the inflatable part 4 into three parts (having three different diameters) and by coupling one or more appended circuits: one being a clutch engagement/release circuit, and the other supplying the three inflatable parts, for a change in ratio (gear).

Description

Ce dispositif comporte le volant moteur1 ayant une forme intérieure cônique, dont la paroi est recouverte d'une matière caoutchouc de haute résistance, du type déjà employé sur les hydro-glisseurs ou toute autre matière qui se marie avec la partie qui entrain l'arbre ( qui est à l'origine le disque d'embrayage) dans le système traditionnel, la partie où devrait être placé le disque d'embrayage est remplacée par un cône recouvert sur toute ses surfaces, d'un ensemble gonflable type caoutchouc (hydro-glisseur) de forme cônique, qui viendra se coller contre la partie cônique du volant moteur. Ceci à l'aide d'un circuit hydrolique assisté et actionné par la pédale embrayage-débrayage. This device comprises the flywheel1 having an internal conical shape, the wall of which is covered with a high-resistance rubber material, of the type already used on hydro-gliders or any other material which blends with the part which drives the shaft. (which is originally the clutch disc) in the traditional system, the part where the clutch disc should be placed is replaced by a cone covered on all its surfaces, with an inflatable rubber type assembly (hydro- slider) of conical shape, which will stick against the conical part of the flywheel. This using a hydraulic circuit assisted and actuated by the clutch-declutch pedal.

Il est donné à titre d'exemple un mode de réalisation se référant aux dessins ci-annexés
Fig. 1 : représente le dispositif composé d'un volant moteur (1) de forme cônique, avec sa paroi type caoutchouc (2), la partie qui entraine l'arbre des roues est un cône plein (5) étant recouvert d'un ensemble gonflable (a) qui épouse les formes d'un cône. En son centre (5) est placé le circuit d'alimentatioc hydraulique (6) assisté (7) actionné par la pédale (8) embrayage débrayage. On a donc fig. 1, la position débrayée, c'est à dire l'hydraulique non injecté dans la partie gonflable donc un vide entre le volant moteur (1) et l'embrayage gonflable (3) et l'action de la pédale débrayée (8).An embodiment is given by way of example with reference to the attached drawings.
Fig. 1: represents the device composed of a conical flywheel (1), with its rubber type wall (2), the part which drives the wheel shaft is a solid cone (5) being covered with an inflatable assembly (a) which follows the shapes of a cone. In its center (5) is placed the hydraulic power supply circuit (6) assisted (7) actuated by the pedal (8) clutch release. So we have fig. 1, the disengaged position, ie the hydraulics not injected into the inflatable part, therefore a vacuum between the flywheel (1) and the inflatable clutch (3) and the action of the disengaged pedal (8).

Fig. 2 : représente le dispositif en position embrayée, c'est-à-dire la partie gonflable (a) collée contre la paroi (2) du volant moteur (1) ceci å l'aide de la pression hydraulique (5) (6) injectée en lachant la pédale d'embrayage (8). Un décalage peut être effectué par rapport à l'axe (5) de l'embrayage gonflable (a) afin d'entraîner par exemple, par pignonnerie (9) et transmettre l'entrainement aux roues. Fig. 2: represents the device in the engaged position, that is to say the inflatable part (a) glued against the wall (2) of the flywheel (1) this using hydraulic pressure (5) (6) injected by loosening the clutch pedal (8). An offset can be made relative to the axis (5) of the inflatable clutch (a) in order to drive, for example, by pinion (9) and transmit the drive to the wheels.

On peut également envisager tout autre dispositif de circuit hydraulique, sans pour cela gêner la transmission. Ce dispositif à pour avantage de rendre plus douce, l'action d'embrayer et permettre une meilleure longévité, paz- rapport aux disques d'embrayage traditionnels. One can also consider any other hydraulic circuit device, without interfering with the transmission. This device has the advantage of making the action of clutching more gentle and allowing better longevity, compared to traditional clutch discs.

On peut également envisager d'obtenir des rapports de vitesse en séparant par exemple en 3 parties, la partie gonflable (4) qui se traduira par 3 diamètres différents, et bien sur en accouplant soit 1 ou des circuits annexes, permettant : l'un embrayage-débrayage, et l'autre qui alimente les 3 parties gonflables pour un changement de rapport. We can also consider obtaining speed ratios by separating for example into 3 parts, the inflatable part (4) which will result in 3 different diameters, and of course by coupling either 1 or additional circuits, allowing: one clutch-disengage, and the other which feeds the 3 inflatable parts for a gear change.

Claims

I) Pneumatic clutch device, which sticks to the flywheel by hydraulic pressure, characterized in that the flywheel (1) of conical shape, with its rubber type wall (2) of high resistance of the type already used on hydro -sliders, the part where the clutch disc should be placed is replaced by a cone covered on all its surfaces, with an inflatable rubber type assembly (4) (conical-shaped hydro-sliders).

2) pneumatic clutch device, which sticks to the flywheel by hydraulic pressure, according to claim 1, characterized in that in its center (5) is placed the hydraulic supply circuit (6) assisted (7) actuated by the clutch-declutch pedal (8).

3) pneumatic clutch device, which sticks to the flywheel by hydraulic pressure, according to claim 1, characterized in that the inflatable part (4) glued against the wall (2) of the flywheel (1) this to the using the hydraulic pressure (7) (6) injected by releasing the clutch pedal (8), an offset can be made with respect to the axis (5) of the inflatable clutch (4), in order to drive pigmonnerie (9) and transmit the drive to the wheels.

4) Pneumatic clutch device, which sticks to the flywheel by hydraulic pressure, according to claim 1, characterized in that three pneumatic faces (4) stick to the flywheel (1 and 2).

5) A pneumatic clutch device, which sticks to the flywheel by hydraulic pressure, according to claim 1, characterized in that the device has hydraulic assistance.

6) pneumatic clutch device, which sticks (6-7) to the flywheel by hydraulic pressure, according to claim 1, characterized in that one can also consider obtaining gear ratios by separating into 3 parts , the inflatable part (4) which will result in 3 different diameters, by coupling either 1 or additional circuits, will allow one: clutch clutch, the other which feeds the 3 inflatable parts, for a gear change.