FR2718700A1 - Device for fixing the truck cab tilting bearings. - Google Patents

Abstract

Each tilt bearing of this device is attached to a side member by means of a guide member, elastic members and vibration dampers are placed between the bearings and the vehicle frame, and the damper is mounted on a connected component of fixed to the spar or to the spar itself. Each of the two tilt bearings (1) is horizontally spaced from the fixing point (10) of the guide element (4) on the side member (2) of the frame (3) and the guide element (4) is made at the same time as a suspension element oscillating in the vertical direction. The frame (3) does not need to extend to the front end (bumper 8) of the vehicle. Applicable to utility vehicles with tilting cab.

Description

The invention relates to a device for fixing the tilting bearings

  truck cabs to frame members of the vehicle chassis, wherein

  each tilting step is fixed by means of a

  guiding member, resilient members and vibration dampers are disposed between the tilting bearings and the vehicle frame and the vibration damper is mounted on a component

  fixed connection to the spar or on the spar itself

  even. Such a device is known for example by the patent

vet DE 22 17 182.

  This document describes a fixing of a tipping device for the cabin of a truck, wherein a tilting bearing of the cabin is fixed to each of the two longitudinal members by means of an elastic element - realized

  in the form of a helical spring - and a damping

  vibrator placed in the center of this spring. The amor-

  weaver is designed in such a way that it provides long-term

  longitudinal and transversal of the cabin. The tilting bearings are interconnected by a stabilizer or

anti-roll bar.

  Besides that, it is also known, for example

  DE 38 27 922 Cl, to place between the hours

  and the cab of tilting levers which, in addition to their actual function, consist in reducing the

  load of the elastic elements and shock absorbers

  the tipping operation of the cab, serve

  also to transmit longitudinal and trans-

  between the longitudinal members and the flip-flop

is lying.

  With both arrangements, the chassis must be

  the vehicle extends horizontally at least

  than tilting bearings to support these. This is necessary especially because the position of the tilt bearing must not change significantly, compared to the vehicle frame, in accidents, otherwise the cabin

  would not be safely maintained in such a case.

  The object of the invention is to provide a device

  to set truck truck tilt bearings in such a manner as to place these bearings horizontally at a distance from the vehicle side members. In addition, the mounting of the tilt bearings must be simplified. Starting from the device of the generic type indicated at the beginning, the invention provides this result in that the tilting bearing is spaced horizontally from the

  fixing point provided on the frame of the chassis of the

  and that the guide element is produced at the same time as a resilient element oscillating in the direction

vertical.

  According to the invention, a guiding element, made

  horizontally protruding from the spar, is attached to the spar. The tilting bearing of the cab is attached to the other end of the guide member. Both the longitudinal and transverse forces applied by the tilting bearing to the guide element and the vertical forces are thus absorbed. As the guide element is designed in the manner of an elastic element

  oscillating in the vertical direction, the fixing of the

  bine hangs in the vertical direction.

  Other features and advantages of the

  will become clearer from the description

  which follows a non-limiting example embodiment, and the accompanying drawings in which: - Figure 1 is a perspective view of the part of the chassis of a truck located in the cabin area and on which we see the tilting bearings thereof; and

  FIG. 2 is a perspective view of

  variant of the device for fixing a tilting bearing.

  In Figure 1, we see a part of a frame

  sis of vehicle 3 comprising longitudinal members 2 and to which a bumper 8 is fixed by supports 9. The longitudinal members 2 of the chassis 3 do not extend to the front end of the vehicle, defined by the bumper 8. The tilting bearings 1, from where support arms 13, are placed on a component 6 in one piece. This component is roughly t-shaped and

  constitutes both the stabilizer 5 and the two elements

  These two elements or guide arms 4 are formed by leaf springs capable of oscillating in the vertical direction. For reasons of weight gain, it is advantageous to manufacture all the component 6, if not at least the guide arms of composite materials, for example a synthetic resin reinforced with fiber.

  glass. Fixation points 10 to receive the ele-

  4 are formed on the longitudinal members 2 of the

  vehicle. The cabin is attached to the support arms 13.

  The bumper 8, which can simultaneously also serve as a protection device against the depression or embedding under the truck of cars in particular, is fixed to the frame 3 of the vehicle by the supports 9. Near

  each tilt bearing 1, a damping

  7 in the "ready to roll" position of the cab, the damper 7 does not absorb holding forces. The cabin is supported exclusively via guide elements 4. To tilt the cabin, one

  can block the shock absorbers.

  downward sliding of the guide elements 4 due to the displacement of the weight during the tilting of the cabin. It is particularly advantageous in this regard

  that the blocking of the shock absorber 7 is automatic

  when, with a view to tilting the cabin, the

  rear attachments - constituting

  rust fixing a tilting position of the cabin - are detached. The shock absorber lock is then

  deleted again when the attachment points

are returned to service.

  In an accident, the bumper 8, including the supports 9, can be moved backward without the tilting bearings 1 change significantly.

  place since the dampers 7 do not determine -

  in the course of their working stroke - a fixed distance between the bumper or the support 9 and the bearing of

tipping 1.

  FIG. 2 shows an embodiment variant

  of the device for fixing a tilting bearing 1.

  The guide element 4, consisting of a leaf spring, is attached to the attachment point 10 formed on the

  2. The guide member 4 is shown in a

  such as that achieved under the load of the cabin

  and by appropriate preloading of this leaf spring 4.

  In the area of the point of attachment for the landing

  In the embodiment, the guide element 4 has a fold 12, so that said fixing point projects upwards. The tilting bearing 1 is attached to the element of

  guide 4 via a support 11. The stability

  The user 5 and the damper 7 are also attached there. In this variant, as in the example of FIG. 1, the distance between the tilting bearings 1

  is greater than the distance between the fixing points

  10 of the guiding elements 4 to the longitudinal members 2 of the

  vehicle. It is also possible to mount the shock absorber 7 on the bumper 8, a separate device for protection against driving under the truck or on a component, in particular on the support 9, carrying the bumper or a bumper.

such device.

  According to another embodiment of the invention

  rather than being installed between the

  Stabilizer 5 can also be mounted in the

  cabin. This provision has the advantage that stabilization

  can then be placed near the lift cylinder

  of the cab, cylinder which is preferably provided

only on one side of the vehicle.

Claims (9)

  1. Device for securing the swivel bearings   truck cabs to frame members of the vehicle, in which - each tilt bearing is fixed by means of a guide member to a beam,   - elastic elements and vibration dampers   between the tilting bearings and the chassis of the vehicle and - the vibration damper is mounted on a component fixedly connected to the spar or on the spar itself, characterized in that the tilting bearing (1) is spaced horizontally from the attachment point (10) provided on the beam (2) of the chassis (3) of the vehicle and that the guide element (4) is simultaneously formed as   an elastic element oscillating in the vertical direction.   2. Device according to claim 1, characterized   characterized in that the guide element (4) is a spring blade.   Device according to claim 1 or 2, characterized in that the guide element is manufactured   composite materials, in particular a synthetic resin,   thistle armed with fiberglass.   4. Device according to claim 1, characterized   in that a tilting bearing (1) is attached to   each beam (2) and a stabilizer or anti-bar   roll (5) is installed between the tilting bearings (1).   5. Device according to claim 4, characterized   characterized in that the guide elements (4) and the stabilizer   the user (5) are in the form of a component in one piece (6).   6. Device according to claim 4 or 5, characterized in that the distance between the tilting bearings (1) is greater than the distance between the attachment points (10) of the guide elements (4) to the longitudinal members (2) of the vehicle.   7. Device according to claim 1, characterized   characterized in that the vibration damper (7) is cable.   8. Device according to claim 7, characterized   characterized in that the vibration damper (7) is   automatically when detaching rear locking devices securing a tilting position from the cabin.   9. Device according to claim 1, characterized   characterized in that the vibration damper (7) is   mounted on the bumper (8) on a protective device   against penetration or embedding under the   example, or on a component (9) carrying   both the bumper or such a device.