DE3215463A1 - Elastic support for the front end of a driver's cab of utility vehicles - Google Patents

Abstract

Elastic support for the front end (2) of a driver's cab (1) of, in particular, utility vehicles on crank arms (16, 17) of torsion rod springs (7, 8) which extend in the longitudinal direction of the vehicle and are arranged on the two longitudinal carriers (5, 6) of a vehicle chassis (4), the crank arms (16, 17) pointing laterally outwards, in each case in opposite directions and being guided in intermediate elements (20 and 21, respectively) whose upper ends are attached on bearing blocks (23 and 24, respectively) of the floor (25) of the driver's cab so as to be capable of pivoting about the transverse axis (22) of the vehicle and their lower ends being supported via shock absorbers (26, 27). <IMAGE>

Description

Elastic support of the front end

of a cab of commercial vehicles The invention relates on an elastic support of the front end of the cab of commercial vehicles according to the preamble of claim 1, with a generic support (US-PS 231 070) it is known to place the torsion bar springs in the longitudinal direction on the side members to arrange a vehicle chassis and clamp each rotatably in a bearing and to keep it rotatable in a further bearing on the chassis. They are in the direction of travel the front ends of the torsion bar springs are provided with crank alarms, which one below the other Are connected via a transverse leaf spring, on which the structure in a within the Länp ', szentrachse lying bearing is supported.

With this support, the body can slope heavily. In addition, one-sided spring compression and rebound movements lead to transverse displacements of the build, which together with the side slopes make an overall so bad Suspension or

Vibration behavior of the structure lead to such a support is suitable for a driver's cab of commercial vehicles at night.

The invention is therefore based on the object for the front end a driver's cab an elastic support using spring elements of the type mentioned above, which are simple and inexpensive to manufacture in structure and works as maintenance-free as possible. In addition, the support should look like this be that it does not restrict or impair the space available and also gives the occupants a pleasant catching comfort.

The task is according to the invention by the in the characterizing part of the Address 1 contained characteristics solved.

D; each support according to the invention has the advantage that they are all provided Requirements met and also the disadvantages of the previously known support avoids.

In a more detailed embodiment, it is proposed that the crank arms the intermediate pieces are slidably held, the guides for receiving the Crank arms have curved sliding surfaces.

In order to keep the inclination of the driver's cab as low as possible it is also suggested that seen in the specialist direction in front of the intermediate pieces A transversely running torsion bar is arranged with a spacing, which is mounted on the longitudinal beams is rotatably mounted in largen, the rearwardly bent ends of the two intermediate pieces are held at the level of the transverse pivot axis In the drawing is an embodiment of the invention.

Bs show: FIG. 1 the front driver's cab mounting in a side view.

2 shows the components of the driver's cab mounting in a top view.

FIG. 3 The driver's cab mounting from FIG. 1 in a front view.

A driver's cab 1, of which only the outline of the dash-dotted line in the figure Lines are shown, is with its front end 2 over a still closer to Descriptive elastic mounting 3 supported on a vehicle frame 4. The vehicle frame 4 consists of two longitudinal members 5 and 6, which are supported by cross members, not shown interconnected alnd.

The front bearing 3 consists of two torsion bars 7 and 8, the in the area of the front end of the frame nberh.alb the two longitudinal members 5 and 6 in Each torsion bar 7 or 8 is arranged over two Bearing bushes 9 and 10 or 11 and 12 mounted on the associated longitudinal member 5 and 6, respectively. The torsion bars 7, 8 are in the bearings arranged at the front end of the bar 13, 14 9 and 11 rotatable and in the bearings 10 resp.

12 at the rear end of the rod by means of serrations. or the like held non-rotatably. The spring preload can be adjusted by means of an adjusting device 15 the torsion bars 7 and 8 within the bearing bushes 1.0 and 12 are set Torsion bars 7 and 8 have at their front ends 13 and 14 leading to the outside Crank arms 16 resp.

17, the transverse openings 18 and 19 of intermediate pieces (Bearing supports) 20 and 21 are slidably guided. The outside next to the side members 5 and 6 located intermediate pieces 20 and 21 are with their upper ends around a Vehicle transverse axis 22 pivotably held in bearing blocks 23 and 24, for example are attached to the floor 25 of the cab 1. The driver's cab can around the pivot axis 22 1 may be tilted in the direction of travel. Support with their lower ends the intermediate pieces 20 and 21 are located on shock absorbers P (. and 27, which in turn Via consoles 28 and 29 on the side members 5 and 6 are mounted To greater side inclinations To avoid the cab 1, the storage 8 is also used as a torsion bar trained anti-roll bar 30 provided directly seen in the direction of travel in front of the intermediate pieces 20 and 21 extends over the width of the driver's cab 1 and the bearing bushes 31 and 32 attached to the longitudinal members 5 and 6 are rotatable is jarred.

The ends of sur @ unrstabilisa @ ors 30 are bent backwards and attached to the intermediate pieces 20 and 21. Lateral forces acting on the cab 1 Can thus be taken up by the anti-roll bar 30. Everyone else on the cab i acting forces are taken over by the torsion bar springs 7 and 8.

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Claims (4)

P a t e n t a n s p r ü c h e 1. Elastic support of the verderen End of a driver's cab on low-cranked ones that run in the longitudinal direction of the vehicle Torsion bar springs on both side members of a vehicle chassis in one front in the BereieLi of the crank arms bearing rotatable and in one at the rear End lying bearings are held firmly clamped, characterized in that di.e crank arms (16 or 17) each laterally in the opposite direction point outside and are guided in intermediate pieces (20 and 21), the upper ends of which Can be pivoted about a vehicle transverse axis (22) on bearing blocks (23 or 24) on the cab floor (25) are attached, and their lower ends via shock absorbers (26 and 27) on the vehicle frame (4) are supported. 2. Elastic support close to claim 1, characterized gekennzeichnct, that the crank arms (16 or 17) in bores (18 or 19) of the intermediate pieces (20 or 21) are kept sliding. 3. Elastic support according to claim 1 or 2, characterized in that that the transverse bores (18 or 19) of the intermediate pieces (20 or 21) have spherically shaped bore walls. 4. Elastic support according to one of claims 1 to 3, characterized characterized that in the direction of travel in front of the Zwischenstilcken (20 or 21) with Ab "tand a transverse torsion bar (30) is arranged and on both longitudinal members (5 or 6) is rotatably mounted in bearings (31 or 32), the rear of which in the longitudinal direction bent ends at the intermediate pieces (20 or 21) at the height of the cab pivot axis (22) are held.