Dual axle suspension for vehicles, especially motor vehicles

Description

[0001] Dual axle suspension for vehicles, in particular motor vehicles The invention relates to a dual axle suspension for Vehicles, in particular motor vehicles, in which the wheels or wheel pairs at the ends of a wheel can pivot in the middle about a transverse axis of the vehicle. are arranged on the supported swing beam by means of articulated links.

[0002] In this known embodiment, the handlebars are designed directly as angled levers, on the other arm of which an independent The suspension is attached to another arm that carries an additional roller. In this arrangement, the additional Wheelsets represent a certain weight proportion of the wheels supported by the handlebars that are to be driven. Such training is This is complex, as two wheels mounted one behind the other are required at each end of the oscillating swing beam. Furthermore, the Each of the wheels belonging to the same group and positioned one behind the other is supported by a spring.

[0003] The object of the invention is to create a simplified double axle suspension in which the suspension of the wheels is simultaneously It can be adjusted in a differentiated manner.

[0004] This problem is solved in the aforementioned double axle suspension according to the invention by making the control arms single-arm and are cushioned against each other and that angle levers are pivotably mounted coaxially with the handlebars on the swing beam, the predominantly The horizontally lying legs are connected to the corresponding handlebars, while the other, predominantly vertical legs are connected to the suspension. are coupled.

[0005] By such a design of the double axle suspension, it is achieved that, in a simple design, the load is distributed by means of A swing beam simultaneously offers the structurally simple possibility that the wheels are at the same height as the swing beam or chassis. They can be adjusted. A single spring serves to cushion the two wheels positioned one behind the other. By connecting the predominantly horizontal leg with the single-arm handlebar on which the wheel is located, and the adjustability between these Both parts allow for different ground clearance settings for the entire vehicle suspension and thus for the vehicle as a whole. Dual axle suspension is relatively simple in design and offers differentiated adjustments. It allows for easy and quick adaptation to Different surface conditions and the nature of the ground on which the vehicle travels. To adjust the angle lever to the On a single-arm handlebar, one leg of the angled lever can be connected to a threaded spindle that can be operated from the outside. This is advantageously used for... The adjusting leg of the angle lever is housed inside the handlebar, so that the adjusting device is protected.

[0006] Advantageously, the spring is arranged between the ends of the vertical legs of the angle levers.

[0007] Advantageously, the suspension consists of a coil spring acting as a compression spring, arranged in a housing; the housing is connected to the corresponding leg of an angle lever and forms a support for the compression spring, while the second support is formed by a A piston can be formed within the housing, the piston rod of which is connected to the corresponding leg of the second bell crank. is.

[0008] The bearing points of the axles of the control arms on the swing beam can be located at the same height as the vehicle's transverse axis on the The swing beam should be arranged. Advantageously, the axes of the single-arm linkages are offset vertically from the axis of the swing beam. The suspension is positioned higher than the vehicle's transverse axis. This allows the suspension to be set as low as possible and the center of gravity to be lowered. Lower the vehicle. If relatively high ground clearance is desired, the relocation can also be done in this way. The axes of the single-arm handlebars will lie below the height of the vehicle's transverse axis on the swing beam.

[0009] The invention is explained below with reference to the embodiment shown in the drawing.

[0010] Fig. 1 shows a schematic side view of the double axle suspension.

[0011] Fig. 2 shows a constructive embodiment of the double axle suspension in side view and partly in section; Fig. 3 shows a top view. as per Fig. 2, partly in section.

[0012] The double axle suspension has a centrally mounted swing beam 1 which is pivotable about a central axis 2 in the The vehicle frame 3 is supported. The support can be achieved by means of an axle stub 4 of the vehicle transverse axis that is fixedly arranged in the vehicle frame 3. This occurs around which the swing beam 1 is rotatably arranged. At the ends of the swing beam 1, single-armed linkages 7 and 8 are arranged around axes 5 and 5. 8 pivotally mounted. These control arms 7 and 8 carry axle journals or axle discs 9 and 10 at their free ends, to which the (not shown) The wheels are mounted on rotatable bearings.

[0013] Angle levers 11 and 12 are rotatably mounted concentrically to the axes 5 and 6 of the control arms 7 and 8. These angle levers 11 and 12 are located essentially within the handlebars 7 and B. The predominantly horizontal legs 11a and 12a of the angle levers 11 and 12 are to The handlebars are adjustable at positions 7 and 8.

[0014] In the illustrated example, this adjustment is made by means of threaded spindles 13 and 14 which are rotatably mounted in bushings 15 and 16. and at the end, for example, have a 17 mm square drive that can be adjusted using a suitable wrench or similar tool. The threaded spindles 13 and 14 pass through a bolt 18 mounted in the eyes of the respective leg 11a or 12a. The downward-pointing legs 11 b and 12 b of the angle levers 11 and 12 are mutually connected by a spring 19. In the example shown, with A piston rod 20 is pivotally connected to the leg 11b, the rod having a disc or piston 21 at its free end. A housing 22, the free end face of which is designated 22a, is pivotally connected to the leg 12b of the bell crank 12. The spring is designed as a compression spring. 19 has on one side the piston 21 as a support and on the other side the housing end face 22 approx. For the angle levers 11 and 12 are stops 23 and 24. In the example shown, axes 5 and 6 are positioned relative to the central axis 2 of the swing beam 1 and point upwards by an amount of 25. arranged in a staggered pattern.

[0015] As can be seen from the schematic representation in Fig. 1, the handlebars 7 and 8 and thus the components located on these handlebars 7 and 8 can be The wheels can be adjusted up or down relative to the rocker arm 1 by means of the threaded spindles 13 and 14. The adjustment of the The adjustment of each wheel can be carried out individually on the wheels arranged one after the other on the swing beam 1. Fig. 1 shows in dashed lines The steering line guides 7, which determines the possible upward and downward deflections. The total height of the deflection depends on the entire The angle of deflection depends on the length of the handlebars. Depending on the design, an angle of deflection of up to 90° can be achieved. For any arbitrary The load is compensated for by the intermediate suspension 19 from the wheel at one end of the swing beam. 1 to the wheel of the other beam end.

Claims

[0016] Claims:

1. Double axle suspension for vehicles, in particular motor vehicles, in which the wheels or wheel pairs are attached to the The ends of a swing beam mounted in the middle so that it can pivot about a transverse axis of the vehicle are arranged by means of articulated links, thereby characterized in that the linkages (7, 8) are single-arm and sprung against each other and that they are coaxial with the linkages (7, 8) on the swing beam (1) Angle levers (11, 12) are pivotally mounted, the predominantly horizontal legs (11 a, 12 a) of which are connected to the associated linkage. (7, 8) are connected, while the other, predominantly vertical legs (11b, 12b) are coupled to the suspension (19).

2. Device according to claim 1, characterized in that each angle lever (11, 12) is adjustable relative to the associated handlebar (7, 8) such that One leg (11a, 12cu) of the angle lever is connected to a threaded spindle (13, 14) which can be operated from the outside.

3. Device according to the Claims 1 and 2, characterized in that the horizontally lying legs (11 a, 12 a) of the angle levers (11, 12) are within the handles (7, 8) are accommodated.

4. Device according to claims 1 to 3, characterized in that the suspension (19) is located between the ends of the vertical Legs (11b, 12b) of the angle lever (11, 12) are arranged.

5. Device according to claims 1 to 4, characterized in that the suspension (19) consists of a helical spring acting as a compression spring arranged in a housing (22), wherein the housing with the associated Leg (12 b) of an angle lever (12) is connected and forms a support for the compression spring, while the second support is formed by a the piston (21) guided by the housing, whose piston rod (20) is connected to the associated leg (11 b) of the second bell crank (11) is connected.

6. Device according to claims 1 to 5, characterized in that the axes (5, 6) of the links (7, 8) are connected to the central axis (2) of the The swing beam (1) is arranged offset in the vertical direction. Referenced publications: French patent no. 794 572.