FR2582995A1 - Multi-spring suspension - Google Patents
Multi-spring suspension Download PDFInfo
- Publication number
- FR2582995A1 FR2582995A1 FR8508737A FR8508737A FR2582995A1 FR 2582995 A1 FR2582995 A1 FR 2582995A1 FR 8508737 A FR8508737 A FR 8508737A FR 8508737 A FR8508737 A FR 8508737A FR 2582995 A1 FR2582995 A1 FR 2582995A1
- Authority
- FR
- France
- Prior art keywords
- suspension
- springs
- rod
- spring
- slider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 35
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
Description
In présente invention concerne un dispositif de suspension applicable à tous les véhicules ou engins automoteurs ou tractés, comportant plusieurs ressorts ( de préférence deux ressorts) à effet différé et complémentaire, ce qui permet de conserver une plus grande souplesse de suspension et une meilleurs adhérence en tous terrains malgré une charge plus importante du véhicule. In the present invention relates to a suspension device applicable to all vehicles or self-propelled or towed vehicles, comprising several springs (preferably two springs) with delayed and complementary effect, which makes it possible to maintain greater suspension flexibility and better grip in all terrain despite a higher vehicle load.
Les systèmes de suspensions existant actuellement canprennent: - des suspensions à ressorts hélicoïdaux ("boudins") simples, - des suspensions à ressorts à lames, - des suspensions à barre de torsion, - des suspensions à "pot de suspension". The currently existing suspension systems can include: - single coil spring suspensions, - leaf spring suspensions, - torsion bar suspensions, - "suspension pot" suspensions.
Tous les systèmes de suspension actuels à rnulti-ressorts comportent des ressorts entrant en action simultanément dès le carrencenent de l'extension ou de la compression. All current suspension systems with multiple springs include springs which operate simultaneously from the moment of extension or compression.
Les systèmes actuels de suspension donnent aux véhicule, soit une faible capacité de charge avec des ressorts souples, soit une capacité de charge plus importante mais avec une suspension ferme, donc confortable. Current suspension systems give the vehicle either a low load capacity with flexible springs or a higher load capacity but with a firm, therefore comfortable suspension.
La suspension de la présente invention permet au véhicule en marche normale d'avoir une très grande souplesse de suspension et de garder cette souplesse même si le véhicule est chargé ou s'il évolue dans des terrains accidentés. The suspension of the present invention allows the vehicle in normal operation to have very great suspension flexibility and to keep this flexibility even if the vehicle is loaded or if it is moving in uneven terrain.
Selon l'invention, le dispositif de suspension comporte au moins deux ressorts , disposés pour pousser de nELnière différée et complé- mentaire, un curseur de suspension,lui-meme actionné en sens contraire par l'extrémité d'une tige tirante ou moussante constituant l'axe central du dispositif, laquelle tigre est reliée par son autre extrémité au bras de suspension, le ressort comprimé en deuxième lieu agissant avant la compression complète du premier et ainsi de suite, l'ensemble étant enfermé dans un boitier de suspension fixé sur le chassis ou autre partie du véhicule. Les ressorts sont de forme hélicoïdale, insérés les uns dans les autres, sans se toucher latéralement. According to the invention, the suspension device comprises at least two springs, arranged to push in a deferred and complementary manner, a suspension slider, itself actuated in the opposite direction by the end of a pulling or foaming rod constituting the central axis of the device, which tiger is connected by its other end to the suspension arm, the second compressed spring acting before the complete compression of the first and so on, the assembly being enclosed in a suspension box fixed on the chassis or other part of the vehicle. The springs are helical in shape, inserted into each other, without touching laterally.
On décrira ci-après, m exemple de réalisation du dispositif de l'invention en référence aux figures du dessin joint, sur lesquelles les figures (1) et (2) représentent des coupes schématiques du dispositif dans le cas d'une tige tirante, respectivement lorsaue seul le premier ressort travaille (Fig. 1) et lorsque les deux ressorts travaillent les figures (3) et (4) représentent des coupes schématiques analogues dans le cas d'une tige poussante. An embodiment of the device of the invention will be described below, with reference to the figures of the attached drawing, in which the figures (1) and (2) represent schematic sections of the device in the case of a pulling rod, respectively when only the first spring works (Fig. 1) and when the two springs work Figures (3) and (4) show similar schematic sections in the case of a push rod.
A) Description en tige tirante avec deux ressorts représentée en coupe sur les figures (1) et (2)
L'invention consiste en m dispositif fixé sur le chassis du véhicule ou engin, de préférence sur la traverse du c.Rssls camprenant
a) une tige (1) qui constitue l'axe central du dispositif . Cette tige est de section sphérique, mais comporte à ses deux extrémités une forme demi-sphérique concave (2) de diamètre supérieur à celui du corps de la tige et destiné à servir de point d'appui à l'effet de traction.A) Description in tie rod with two springs shown in section in Figures (1) and (2)
The invention consists of a device attached to the chassis of the vehicle or machine, preferably on the cross member of the camprenant c.Rssls.
a) a rod (1) which constitutes the central axis of the device. This rod is of spherical section, but has at its two ends a concave half-spherical shape (2) of diameter greater than that of the body of the rod and intended to serve as a fulcrum for the traction effect.
La tige est reliée par une de ses ex-trémités au bras de suspension (3) et par 1 'autre extrémité au curseur de suspension visé ci après. The rod is connected by one of its ex-ends to the suspension arm (3) and by the other end to the suspension cursor referred to below.
b) un curseur de suspension (4) qui peut dans une des variantes être de forme conique creuse tronquée et est placé du côté du dispositif le plus éloigné du bras de suspension. Ce curseur est percé à la partie centrale de sa surface tronquée d'un orifice circulaire (5) de diamètre égal à celui du corps de la tiae. La surface tronquée du curseur présente en outre autour de l'orifice (5) une forme demi-sphérique concave de diamètre égal à celui de l'extrémité de la tige qui n'est pas relié au bras de suspension. b) a suspension slider (4) which may in one of the variants be of hollow truncated conical shape and is placed on the side of the device furthest from the suspension arm. This cursor is pierced at the central part of its truncated surface with a circular orifice (5) of diameter equal to that of the body of the tiae. The truncated surface of the cursor also has around the orifice (5) a concave semi-spherical shape with a diameter equal to that of the end of the rod which is not connected to the suspension arm.
Cette extrémité de la tige passe par l'orifice (5) du curseur de suspension et s'appuie en traction sur la forme demi-sphérique du curseur en sa partie centrale , coté surface extérieure tronquée. This end of the rod passes through the orifice (5) of the suspension slider and is supported in traction on the semi-spherical shape of the slider in its central part, on the side of the truncated external surface.
c) le curseur de suspension comporte en sa partie intérieure, côté surface tronquée une fixation (6) destinée à servir de guide et d'appui au ressort central (7). c) the suspension slider comprises in its inner part, on the truncated surface side, a fixing (6) intended to serve as a guide and support for the central spring (7).
Un deuxième ressort appelé ressort de base (8) prend appui sur la base conique du curseur. A second spring called the base spring (8) is supported on the conical base of the slider.
d) le ressort central et le ressort de base sont tous deux de forme hélicoidale mais ont un diaretre , une longueur et un rebond différents. d) the central spring and the basic spring are both helical in shape but have a different diameter, length and rebound.
Le ressort central qui a un diamètre plus court s'insère dans le ressort de base gui entoure le premier sans toutefois le toucher latéralement
e) un boitier de forme préférentiellement cylindrique creuse fixé au cE,assis sert de gaine au dispositif sus-visé.The central spring which has a shorter diameter is inserted into the basic spring which surrounds the first without however touching it laterally
e) a preferably cylindrical hollow case fixed to the cE, seated serves as a sheath for the above-mentioned device.
B) Description avec tige poussante avec deux ressorts représentée en coupe sur les figures (3) et (4)
Le dispositif décrit en A ci-dessus peut également être réalisé en tige poussante . D=ns une des variantes du système avec tige poussante ainsi qu'il est représenté en coupe sur la figure (2) ,les modifications par rapport au dispositif décrit en A sont les suivantes:
a) les deux extrértés de la tige sont toujours demi-sphériaues et de diamètre supérieur à celui du corps de tige, mais sont de forme convexe ; ainsi l'extrémité de la tige n'est plus une surface plane, mais une surface demi-cylindrique.B) Description with push rod with two springs shown in section in Figures (3) and (4)
The device described in A above can also be produced as a push rod. D = ns one of the variants of the system with push rod as shown in section in FIG. (2), the modifications compared to the device described in A are the following:
a) the two ends of the rod are always semi-spherical and of diameter greater than that of the rod body, but are convex in shape; thus the end of the rod is no longer a flat surface, but a semi-cylindrical surface.
b) le curseur est placé du coté du boitier le plus proche du bras de suspension avec surface tronquée du coté des ressorts. La surface tronquée est plane et n'est percée d'aucun orifice. b) the cursor is placed on the side of the box closest to the suspension arm with truncated surface on the side of the springs. The truncated surface is flat and has no holes.
c) la partie intérieure coté surface tronquée du curseur est aménagée en forme demi-sthérique concave femelle destinée à servir de point d'appui à l'extrémité de la tige poussante. c) the inner part on the truncated surface side of the cursor is arranged in the form of a female concave semi-steric form intended to serve as a fulcrum at the end of the push rod.
d) le ressort central et le ressort de canpensation prennent appui sur la surface conique extérieure du curseur. d) the central spring and the canpensation spring bear on the outer conical surface of the cursor.
Les figures (1) et (2) annexées illustrent l'invention. The attached figures (1) and (2) illustrate the invention.
la figure (1) montre dans la formule tige tirante une position ou seul le ressort central est compressé, le ressort central n'étant pas encore entré en action. Figure (1) shows in the pulling rod formula a position where only the central spring is compressed, the central spring not yet having entered into action.
la figure (2) montre une position oc les deux ressorts sont en action. Figure (2) shows a position oc the two springs are in action.
I1 apparait donc que les deux ressorts ont un effet différé et complémentaire. Le ressort central qui a à la fois un diamètre, une longueur et un rebond différents de ceux du ressort de base n'agissant que lorsque le ressort central est déjà légèrement comprimé et en complément de celui-ci. It therefore appears that the two springs have a delayed and complementary effect. The central spring which has at the same time a diameter, a length and a rebound different from those of the basic spring acting only when the central spring is already slightly compressed and in addition to this.
Cette ocobinaison des deux ressorts donne à la roue du véhicule une constante pression au sol. De plus, la différence de rebond des deux ressorts annule tout phénanène de résonance et de vibration et permet au véhicule d'évoluer sur n 'inrte quel terrain, mse sur de la tôle ondulée, en charge comme à vide, et autorise une charge beaucoup plus importante en maintenant la souplesse de suspension. This combination of the two springs gives the vehicle wheel constant pressure on the ground. In addition, the difference in rebound of the two springs cancels any phenanene of resonance and vibration and allows the vehicle to evolve on any terrain, even on corrugated iron, both loaded and unladen, and allows a load much more important by maintaining suspension flexibility.
Dans une version variante , on pourrait inverser 1 'ordre des ressorts, le ressort extérieur pouvant être le ressort avec le plus grand diamètre mais de longueur plus courte. Dens cette variante la forme du curseur doit être modifiée de manière à ce que le ressort extérieur soit canprise' avant le ressort central. In a variant version, one could reverse the order of the springs, the outer spring possibly being the spring with the largest diameter but of shorter length. In this variant the shape of the slider must be modified so that the outer spring is caniven 'before the central spring.
Il est techniquement possible de multiplier le nombre de ressorts (par exemple 3 ou 4) à condition que les divers ressorts aient un diamètre, une longueur et un rebord différents
la multiplicité des ressorts qui augmente la souplesse peut se concevoir pour certains véhicules à usage particulier (convoi de produits dangereux, transport de malades,...). It is technically possible to multiply the number of springs (for example 3 or 4) provided that the various springs have a different diameter, length and edge
the multiplicity of springs which increases the flexibility can be conceived for certain vehicles with particular use (convoy of dangerous products, transport of patients, ...).
Le système à double ressort devrait être le système le plus couramment utilisé en pratique. The dual spring system should be the most commonly used system in practice.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8508737A FR2582995A1 (en) | 1985-06-10 | 1985-06-10 | Multi-spring suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8508737A FR2582995A1 (en) | 1985-06-10 | 1985-06-10 | Multi-spring suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2582995A1 true FR2582995A1 (en) | 1986-12-12 |
Family
ID=9320051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8508737A Pending FR2582995A1 (en) | 1985-06-10 | 1985-06-10 | Multi-spring suspension |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2582995A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825323A1 (en) * | 2001-06-05 | 2002-12-06 | Bernard Gaiffe | Suspension for motor vehicle has cylinder pivoted to chassis and receiving sprung sliding rod connected to wheel by bellcrank |
| EP1577125A3 (en) * | 2004-03-19 | 2006-12-06 | Audi Ag | Vehicle spring system having variable spring characteristics with at least one main spring element and at least one damper element |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR328974A (en) * | 1903-01-31 | 1903-07-23 | Electricite Et D Automobiles M | Suspension device for cars |
| US1450654A (en) * | 1921-07-09 | 1923-04-03 | Thompson Spring Company | Vehicle spring |
| FR767306A (en) * | 1933-02-04 | 1934-07-16 | Daimler Benz Ag | Spring shock absorber with additional springs |
| FR800086A (en) * | 1935-04-09 | 1936-06-26 | Strommens Vaerksted As | Elastic device for road or rail vehicles |
| FR829453A (en) * | 1936-11-19 | 1938-06-28 | Improvements to elastic systems with variable flexibility, in particular for vehicle suspensions | |
| FR845076A (en) * | 1938-04-20 | 1939-08-10 | Automotive Suspension Improvements | |
| FR869426A (en) * | 1938-10-11 | 1942-02-02 | Daimler Benz Ag | Device for limiting the travel of axles of motor cars with displacements damped by unguided coil springs |
| US3094096A (en) * | 1960-12-05 | 1963-06-18 | Nilo K Florence | Aquatic tow rope with shock absorber |
| FR2490305A1 (en) * | 1980-09-18 | 1982-03-19 | Ganz Mavag Mozdony Vagon | ELASTIC APPARATUS WITH PROGRESSIVE CHARACTERISTICS, PREFERABLY FOR TRUCKS OF RAIL VEHICLES |
-
1985
- 1985-06-10 FR FR8508737A patent/FR2582995A1/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR328974A (en) * | 1903-01-31 | 1903-07-23 | Electricite Et D Automobiles M | Suspension device for cars |
| US1450654A (en) * | 1921-07-09 | 1923-04-03 | Thompson Spring Company | Vehicle spring |
| FR767306A (en) * | 1933-02-04 | 1934-07-16 | Daimler Benz Ag | Spring shock absorber with additional springs |
| FR800086A (en) * | 1935-04-09 | 1936-06-26 | Strommens Vaerksted As | Elastic device for road or rail vehicles |
| FR829453A (en) * | 1936-11-19 | 1938-06-28 | Improvements to elastic systems with variable flexibility, in particular for vehicle suspensions | |
| FR845076A (en) * | 1938-04-20 | 1939-08-10 | Automotive Suspension Improvements | |
| FR869426A (en) * | 1938-10-11 | 1942-02-02 | Daimler Benz Ag | Device for limiting the travel of axles of motor cars with displacements damped by unguided coil springs |
| US3094096A (en) * | 1960-12-05 | 1963-06-18 | Nilo K Florence | Aquatic tow rope with shock absorber |
| FR2490305A1 (en) * | 1980-09-18 | 1982-03-19 | Ganz Mavag Mozdony Vagon | ELASTIC APPARATUS WITH PROGRESSIVE CHARACTERISTICS, PREFERABLY FOR TRUCKS OF RAIL VEHICLES |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825323A1 (en) * | 2001-06-05 | 2002-12-06 | Bernard Gaiffe | Suspension for motor vehicle has cylinder pivoted to chassis and receiving sprung sliding rod connected to wheel by bellcrank |
| EP1577125A3 (en) * | 2004-03-19 | 2006-12-06 | Audi Ag | Vehicle spring system having variable spring characteristics with at least one main spring element and at least one damper element |
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