DE7338796U - Device for stabilizing self-steering axles - Google Patents

Description

DIPK-ING. H. MARSCH · "* Düsseldorf,

DIPK-ING.K. SPARING ^ ΙΪΪΓΙμ ™ ** "

PATBNTAIiWAtTJB TXLBFOri <O211) 873 »« «

- / 548

Description of the utility model application

of the Warsteiner axle factory Heinrich Steinbrecher, 4788 Warstein

concerning:

'' ', device for stabilizing self-steering axles "

The innovation relates to a device for stabilizing of self-steering axles on vehicles where the radon is on are articulated to a rigid axle beam by means of steering knuckles, the vertical swivel plane of which lies in front of the wheel support points, with tie rods coupling the steering knuckles and with compressed air cylinders each assigned to a wheel and attached to the axle beam, of which when the wheel is turned to one side, and when the wheel is turned to the other, the other as a return and Attenuator is effective, while both cylinders in engagement with the respective transmission elements during Gei-adeausfahrt stand.

Such a device is from DT-OS 1 9 ^ 5 589 known. In the known device is a number of Sliding shafts provided with telescopic guides that are in the

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Manufacturing are expensive and due to wear and tear have only limited operational reliability.

The object of the innovation is to create a device of the type mentioned at the outset which, with maximum operational reliability, manages with very few bearing points subject to wear.

According to the innovation, this task is solved by that the tie rod is divided and you inner ends of the tie rods ängelenken on a symmetrical lever member are, in turn, hinged to the axle body, and that the steering movements following sections of the lever member rest on the piston rods of the cylinders. At the contact point between the lever link and the piston rods can Arrangement 80 be reached that the KQlbenstancenanden md_h spherical pressure pieces are provided, which are in spherical pincer-shaped Attack joint pieces on the lever member; it goes without saying that the lever link with the spherical one also vice versa Counterpart can be provided while the ball tongs are located on the piston rod ends.

From DT-PS 1 8lo 2ol it is known per se that Split tie rod and the inside ends of the partial tie rods to articulate to a transmission body, the i_i V «'irkverbindungen with a single common compressed air cylinder stands. In this known device there is a relative sliding movement between the transmission body and the compressed air cylinder provided, whereby considerable wear and tear must also be expected, and therefore operational reliability is dubious.

In the design made known by DT-OS 1 8o2 557, split tie rods are also provided, but, as in the first-mentioned device, with sliding

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vjellen are equipped and therefore in the same way of danger subject to wear and tear.

A preferred embodiment of the objects of The innovation is explained below with reference to the accompanying drawings.

Pig. 1 shows a self-steering axle according to FIG

Innovation in plan view when driving straight ahead,

Fig. 2 shows a similar representation of the axis at Cornering,

Fig. 3 shows on an enlarged scale the formation at the joint between the two
Lever link and the piston rod ends, and

Fig. 4 shows a vertical view through the center of the axle, whereby the lever mounted on the axle body can be seen and a device
to turn the steering for reversing
To block.

The axle body J> is mounted in ni "ht shown catfish on the vehicle frame. The helmets 1, 2 at 16, 17 are hinged to it; these articulation points lie in front of the center of the Aabs «and thus also in front of the tire contact points, which are essentially in the plane of the axis when driving straight ahead. The tie rod _t, which connects the free ends of the steering arms 1, 2, is divided, and the two tie rods 4, 5 are articulated on the one hand to the steering arms and, on the other hand, to a common lever member 6.

Lever member 6 we let on its axis 3 facing Since lever lines 11, 12 on each of which a ball socket 14

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the ephHrisoh shaped pressure pieces IjJ of the piston rods 9 * straight in the ball sockets 14 * The piston rods 9, Io belong to membrane cylinders 7, 8, which are actually cylinders; which are also used for all components for the brake systems of such vehicles.

One recognizes in Pig. 2, when driving through a curve, the wheels are turned by the known tracking effect due to the forward pivoting plane of the centers of gravity 16, 17. The Teilepurstangen 4, 5 pivot while at the same time the lever member 6. In the illustration of FIG. 2, at impact nash right animal lever arm 12 in the direction of the ZyIIn- & AT varschwenkt 8, wherein the attached thereto ball socket 14 duroh action on the printing block 13 & * Piston rod Io moves into the interior of the cylinder, so that when the steering torque disappears, pressure is exerted on the ball socket 14 on the lever arm IS and the wheels are returned to the straight-ahead position. With the steering insole to the right, as shown, only the compressed air cylinder 8 eats effectively, while on the side of the lever arm 11 the contact between the ball socket and the pressure piece on the piston rod 9 is released, as the noise 11 simply lifts off the pressure piece.

In the straight-ahead driving position, both lever arms 11, 12 rest with their ball sockets 14 on the respective pressure piece 1} of the associated piston rod 9 or Io. The compressed air enclosed in the cylinders prevents the system from swinging in the central position when driving straight ahead. When the steering is misaligned to the left, of course, only the compressed air cylinder 1 is effective, while on the side of the directional cylinder 8 the lever arm will lift off the piston rod 9.

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The steering movement must be locked for reversing. For this purpose, the lever member 6 is blocked, for which purpose: a locking pin 15 is provided which can fall into a bore in a bearing plate 18, which in turn is attached to the axle body j5. Normally a tension spring holds, which is only indicated in FIG. the bolt I5 in the unlocked position shown. If the locking is to take place, the compressed air cylinder also indicated in FIG. 4 is acted upon with compressed air and its piston rod brings the bolt 15 into the locking position against the force of the spring.

Protection claims:

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Claims (3)

- Protection claims - 1. Device for stabilizing self-steering axles on vehicles in which the wheels are articulated to a rigid axle beam by means of stub axles, their vertical pivot plane lies in front of the wheel contact points, with the steering knuckle coupling tie rods and each assigned to a wheel and cylinders attached to the A <ßh skör by compressed air, of which with wheel lock on one side, with wheel lock on the other the other as a return and Attenuator is effective, while both cylinders are in engagement with the respective transmission elements when driving straight ahead stand, characterized in that the tie rod is divided in a manner known per se and the inner ones Ends of the Teiispurstangen (4,5) on a symmetrical lever link (6) are articulated, which in turn is attached to the axle beam (j5) is articulated, and that the steering movements following sections (11, 12) of the Kebelglieäes on the piston rods (9, lo) of the cylinder issue. 2. Device for stabilizing self-steering axles on vehicles according to claim 1, characterized in that the piston rod ends are provided with spherical pressure pieces (13) that are in ball socket-shaped joint pieces (14) attack the lever member (6). 3. A device for stabilizing trailing steering axles of vehicles according to claim 1, characterized in that the sine KolbenBtangenenden provided with ball socket-shaped pressure pieces, in the spherical counterparts on the lever member