DE8118924U1 - Vehicle or trailer, in particular for agricultural purposes - Google Patents

Description

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Peter Parzinger

June 19, 1981

Vehicle or trailer, especially for agricultural use

Purposes

The invention relates to a vehicle or a trailer, in particular for agricultural purposes, with a suspension between the superstructure and axles, with a single and disengageable spring lock acts.

Vehicles or trailers with suspension are particularly problematic when used in agriculture on slopes, because through the spring action increases the risk of tipping over.

To eliminate the above disadvantage, such vehicles or trailers are also without suspension between the superstructure and Axis built. The resulting impact effect increases the stress on numerous vehicle or trailer parts which can lead to premature wear and tear and thus destruction of these overly stressed parts.

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Peter Parzinger

For an agricultural multi-purpose vehicle there is already one Suspension has become known, which can be blocked by means of a spring lock that can be switched on and off.

According to DE-AS 2053656, the spring lock consists of a swivel arm with a coupling member (coupling claw) Locking element which is rotatably mounted on one of the vehicle parts to be locked. The corresponding mating coupling element (Coupling bolt) is provided on the other of the mutually lockable vehicle parts. The spring lock causes thus a mutual locking of the superstructure and vehicle axle, so that e.g. when plowing at a constant driving speed and constant soil conditions, the set plowing depth is maintained automatically.

With another agricultural multi-purpose vehicle Leaf springs between the axles and the superstructure, the spring lock consists of several pressure medium cylinders, which in addition to the Leaf springs are arranged on the superstructure (DE-OS 2807299). With a corresponding pressurization of the cylinder with pressure medium the suspension is so tensioned that it can no longer perform its function. This hydraulic spring

Peter Parzinger

The lock also causes the superstructure and the vehicle axle to lock together, something that is aimed for, for example, when mowing grass will.

Furthermore, a device for blocking the axle springs of wheels of a double axle of truck chassis is already known become. Axle spring locks are necessary on trucks that carry crane superstructures. The axle spring lock should be a Avoid tilting the crane by swinging the axle springs. In addition, a better stability should be achieved and an overload of the axle springs can also be avoided. According to DE-OS 22299A2, the truck axle spring lock is used an adjustable and lockable lever system that moves around a pivot point on the chassis that is approximately perpendicular to the axis is pivotably mounted and acts on the leaf springs.

The aforementioned spring lock devices have the design feature on that parts of the locking device are located directly on the superstructure or on special provided thereon Support mounting elements so that a mutual locking of the superstructure and vehicle axle is effected.

The object of the invention is for vehicles or trailers

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Peter Parzinger

To create a spring lock of the type mentioned at the beginning, which enables safe driving even on slopes ^ even afterwards can be attached to the vehicle or trailer without difficulty, takes up little space, is easy to manufacture and in particular can also be used on vehicles or trailers with pendulum axles.

The invention solves the problem in that only the spring to be locked is the carrier for the locking device, the middle holding elements directly on the spring is appropriate. In a preferred embodiment of the Invention with a spring suspension between the superstructure and axles with pendulum compensation is the mechanical one Spring locking device consisting of several bolts provided in a holder, between which the leaf spring is locked Condition is jammed. One of these bolts is for switching on (inserted bolt) and for switching off (pulled bolt) of the spring lock can be plugged in, the other bolts are firmly attached in the holder.

Further advantageous refinements of the invention emerge from the remaining claims.

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Peter Parzinger

The spring locking device according to the invention largely prevents the vehicle or trailer from tipping over while working on slopes. It can be used with particular advantage in vehicles or trailers with pendulum axles, extremely robust, easy to use the construction, safe to work, practically maintenance-free, easy to handle and it takes up little space. Another advantage is their easy installation on the trailer or vehicle, e.g. for agricultural purposes, carried out by the farmer can be done by yourself without any problems. Because the locking device is only attached to the spring to be locked (leaf spring) or has to be hung up and therefore no fastening points on the superstructure and the axle are required for attachment are, this spring lock device is also suitable for retrofitting vehicles that are already in use or Different types of hanging.

In the drawing, a spring locking device according to the invention is shown purely schematically.

It shows

Figure 1 is a side view of an axle (without wheel) with locked suspension,

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Peter Parzinger

Figure 2 is a section through the spring locking device in Area of the firmly attached clamping and retaining bolts and

FIG. 3 shows a section through the spring locking device in the area of the plug-in clamping bolt.

From a trailer for agricultural purposes only that is the rear part of the superstructure 2 is shown. The axle 1 for a rear wheel (not shown) is supported by a leaf spring 3 cushioned against the superstructure (chassis frame) 2. The fastening element 8 for the leaf spring 3 is known per se Wise designed.

According to the invention, a spring locking device is attached to the leaf spring 3 put on. This consists of the bolts 4 and 5, which are in the rigid strip-shaped holder 7 (Figure 2) are attached. The third bolt 5 can be inserted into the holder, as shown in FIG. 3, in which the bolts 4, 6 and others Parts are not shown. When the bolt 5 is inserted, as shown in FIG. 3, the leaf spring 3 is locked, see above that the superstructure 2 is supported practically unsprung on the axis 1. The socket pin 5, which is on the component 8 on the top the leaf spring 3 rests against the holder 7 by means

Peter Parzinger

a locking device 9 (not shown) against out-. fall secured. If the socket pin 5 is pulled out of the holder 7, then the blocking of the leaf spring 3 is released and the superstructure 2 is then resiliently supported on the axle 1. The spring lock is switched on when driving on a slope, because this measure significantly increases the stability of the trailer is increased. The spring lock is switched off in normal traffic.

The bolts 6 in the holder 7 hold the spring lock device removed socket pin 5 on the leaf spring 3.

The spring locking device is expediently attached to all springs of the trailer and / or vehicle.

The axis 1 is a known pendulum axis.

The bolts 4 and 6 are mounted in the holder 7 or their distance from one another in the direction perpendicular to the lower edge of the superstructure, each _{dimensioned so} that when the socket pin 5 is removed, the spring lock is released and thus the leaf spring 3 comes into full effect.

Claims (5)

···· · I »lit · • · · f · ι I I I« <■ I *> · · · ■ III · <Peter Parzinger June 19, 1981 Schut ζ claim 1. Vehicle or trailer, especially for agricultural purposes, with suspension between the superstructure and axles, with a spring lock that can be switched on and off acts on the suspension,
characterized, that only the spring to be locked (3) is the carrier κ for the locking device (4-, 5 and 7). 2. Vehicle or trailer according to claim 1, with a spring suspension having leaf springs between the superstructure and axles with pendulum compensation,
characterized in that the mechanical locking device consists of several bolts (4 and 5), between which the leaf spring (3) is clamped in the locked state, at least one »Ι β a o * • til · «■ * ι • I «* I 1 Mil I % * »· I Peter Parzinger _ Q Bolt (5) for switching the spring lock on and off can be plugged in is provided in the holder (7), while the other bolts are firmly attached in the holder (7). 3 · Vehicle or trailer according to claim 2, characterized in that that the spring locking device three in the holder (7) provided bolts (4 and 5) on v / eist, of which two bolts (4-) - the rest on one side of the leaf spring (3) in the outer areas - are firmly attached in the holder (7), while the third bolt (5) - the one on the opposite side of the leaf spring (3) in its central area - is plugged into the holder (7) to switch the spring lock on and off. 4. Vehicle or trailer according to claim 2 and 3, characterized, that two more bolts (6) are firmly inserted in the holder (7), by means of which the spring lock device when removed Bolt (5) is held or suspended on the leaf spring (3). Peter Parzinger - 10 - 5. Vehicle or trailer according to claim 2 to 4, characterized, that the holder (7) consists of two rigid strips extending in the longitudinal direction of the leaf spring (3), between where the leaf spring (3) is located and which, by means of the clamping bolts (4-) and retaining bolts (6), form a rigid, are only connected to the locking cage suspended from the leaf spring (3). • »· t Il