FR2546099A1

FR2546099A1 - Device for undoing and tightening car wheel nuts and guiding the rims over the studs

Info

Publication number: FR2546099A1
Application number: FR8308547A
Authority: FR
Original assignee: MARLIN AIME
Current assignee: MARLIN AIME
Priority date: 1983-05-19
Filing date: 1983-05-19
Publication date: 1984-11-23
Also published as: FR2546099B1

Abstract

It consists of a lever which can instantaneously be fitted over the crank 6 and which allows blocked nuts to be undone with the aid of the handle 3 situated at one of its ends. A section 5 at the other end, comprising a swelling, helps to guide the wheel rim over the studs. The device according to the invention is particularly intended to lessen the difficulties encountered when changing a car wheel.

Description

La présente invention concerne un dispositif permettant le
desserrage et le deserrage sans effort des écrous de roues de
voiture ainsi que le guidage des jantes sur les goujons.The present invention relates to a device allowing the
effortless loosening and loosening of the wheel nuts
car as well as the guidance of the rims on the studs.

les écrous d'une roue étant parfois bloqués il est alors
impossible de les desserrer à l'aide du vilebrequin fourni avec
la voiture. Une autre difficulté est la recherche des goujons afii
de placer la roue.the nuts of a wheel being sometimes blocked it is then
impossible to loosen them using the crankshaft supplied with
the car. Another difficulty is finding the afii studs
to place the wheel.

Le dispositif selon l'invention permet, entre autre, de
remédier à cet inconvénient. Il se compose de quatre parties:
un tube d'acier cylindrique ou à section elliptique d'une longueur de 305 mm.The device according to the invention allows, among other things, to
remedy this drawback. It consists of four parts:
a cylindrical or elliptical section steel tube with a length of 305 mm.

une tôle pliée permettant l'adaptation du vilebrequin d'un encombrement de 135 mm. a folded sheet allowing the adaptation of the crankshaft with a space requirement of 135 mm.

un manche séparé en deux poignées, l'une de 83 mm pour le desserrage et l'autre de 70 mm pour le serrage avec un couple moins important. a handle separated into two handles, one of 83 mm for loosening and the other of 70 mm for tightening with less torque.

un profilé,de 130 mm de long, servant de guide d-'un diamètre inférieur de 1 mm à celui des goujons. Ce profilé est soudé sur le premier tube. A l'extrémité on exécute un renflement de 10 mm, d'un diamètre intérieur légèrement supérieur à celui du goujon de telle sorte que la partie se posant sur le goujon soit,le levier se trouvant en position horizontale, dans l'alignement du diamètre extérieur du profilé0 La lageur de ce renflement ne devra pas dépasser le diamètre extérieur du guide. En bout de de renflement on fait un demi cylindre permettant l'immobilisatioe du guide sur le goujon lors de la phase de remise en place de la roue.C'est à dire lorsque le levier, en position audessus de l'horizontale, permet le glissement de celle-ci qui vient buter contre les goujons0 q
La figue 1 représente la vue d'ensemble du dispositif avec le vilebrequin dans ses deux positions possibles,
La figure 2 représente la vue de dessus de la figure lo
la fi-jri 3 représente la vue de gauche de la fi're 1. a profile, 130 mm long, serving as a guide with a diameter 1 mm smaller than that of the studs. This profile is welded to the first tube. At the end, a 10 mm bulge is made, with an inner diameter slightly greater than that of the stud, so that the part resting on the stud is, the lever being in a horizontal position, in line with the diameter. outside of the profile0 The width of this bulge must not exceed the outside diameter of the guide. At the end of the bulge, a half cylinder is made allowing the guide to be immobilized on the stud during the repositioning phase of the wheel. That is to say when the lever, in position above the horizontal, allows the sliding of it which comes up against the studs0 q
Fig. 1 represents the overall view of the device with the crankshaft in its two possible positions,
Figure 2 shows the top view of Figure lo
fi-jri 3 represents the left view of fi're 1.

la figure 4 représente le developpement de la tôle. Figure 4 shows the development of the sheet.

la figure 5 représente la vue de gauche de la figure 4. FIG. 5 represents the left view of FIG. 4.

le dispositif représenté sur la figure 1 comporte un tube (1) cylindrique du m8ma diamètre que celui du vilebrequin sur lequel sera forcé la tBle,Rigure 4, pliée préalablement suivant les traits mixtes forts (7). La poignée (3) pour desserrage est située le plus loin possible des goujons pour avoir un couple importante La poignée (4) est plus proche des goujons puisque le serrage nécessite un couple moindre. the device shown in FIG. 1 comprises a cylindrical tube (1) of the same diameter as that of the crankshaft on which the tBle, Rigure 4, will be forced, folded beforehand according to the strong mixed lines (7). The handle (3) for loosening is located as far as possible from the studs to have a high torque. The handle (4) is closer to the studs since tightening requires less torque.

Le guide (5) étant passé dans un trou de la roue prend appui sur un goujon, D'une longueur de 130 mm, solidaire au tube (1) son diamètre variable sera celui des trous de la roue moins mm, ce jeu permettant de positionner le levier au dessus de l'horizontale présentant ainsi une pente sur laquelle glisse la roue jusqu'à venir buter sur les goujons0 Ramener le levier à l'horizontale pour chercher les goujons. The guide (5) being passed through a hole in the wheel rests on a stud, 130 mm long, integral with the tube (1) its variable diameter will be that of the holes in the wheel minus mm, this clearance allowing position the lever above the horizontal, thus presenting a slope on which the wheel slides until it comes up against the studs 0 Return the lever to the horizontal to find the studs.

le vilebrequin (6) est représenté dans deux positions: l'une pour le maintien dans la talez l'autre pour les désolidariser. Nous retrouvons les mêmes éléments dans les figures 2 et 3. the crankshaft (6) is shown in two positions: one for maintaining in the talez the other to separate them. We find the same elements in Figures 2 and 3.

La figure 4 est le développement de la tôle (2) où l'on peut voir les deux trous pour la fixation du tube (1) et un bossage sur la partie supérieure afin de maintenir le vilebrequin dans sa position. il faudra donc forcer légèrement pour le sortir. Figure 4 is the development of the sheet (2) where we can see the two holes for fixing the tube (1) and a boss on the upper part to maintain the crankshaft in its position. you will have to force it slightly to get it out.

Claims

REVEIXDICATIONS

1) Device allowing the loosening and tightening effortlessly of the nuts of a car wheel as well as the lifting of celleca and the guiding of the studs in the holes of the rim which are done using a lever with two uses , characterized in that it comprises a steel keel (1) cylindrical or of elliptical section, of a sheet metal figure 4 folded beforehand (2) figures 1 and 2 a handle separated into two handles (3) for the loosening (4) for tightening with a less significant torque A guide integral with the extension of the steel tube (1) characterized in that it consists of a profile (5) at the end of which a bulge is placed on the lowest stud to support when it has been inserted into the hole at the bottom of the rim allowing effortless lifting of the wheel above the horizontal

2) Device according to claim î characterized in that the lever consisting of a tube (1) Figure 2 comprises a separate handle in daux handles (3) and (4) for respectively loosening and tightening the nuts.

3) Device according to claim 1 characterized in that the sheet (2) rolled beforehand, crossed by the tube (1) the fin (2) left folded forward, the right fin folded back on which is ml boss 4 and 5 crankshaft holding when the latter, shown in dotted figure 1, turning a quarter turn to the left will have taken its place.

4) Device according to claim 1 characterized in that the end (5) integral and in extension of the tuBe serves as a guide introduced over its entire length into the lowest hole in the rim, the bulged end resting on the stud the lower for lifting the wheel comes by sliding butts against the studs.

5) Device according to claims 1 and 4 characterized in that the end of the profile (5) has a bulge terminated by a half cylinder for maintaining the guide on the stud during the tilting phase of the levers