EP0640725B1 - Loader with posts for attaching onto a vehicle - Google Patents

Description

The invention relates to a loader with a post for fastening on a vehicle, using one or more consoles and the consoles in their mouths.

From US-A-4,793,764 a loader emerges, which is for cultivation is intended for an agricultural tractor and essentially from rear masts, a loader arm and a tool consists. For attaching the masts to the tractor extend from this laterally consoles with round Cross-section in a horizontal plane. At the lower end areas the mast is a mouth open at the bottom provided that overlaps the respective console and thus supports the loader. To secure the masts in position Brackets are each provided stops and lugs that engage with each other as soon as the loader is his Has assumed operating position.

The object on which the invention is based is seen in a connection to be made without tools the loader and the device carrying it without much effort create.

This object is achieved by the teaching of the claim 1 solved, wherein in the further claims Advantageously developing the solution Features are listed.

In this way, i.e. H. by using a non-circular Cross-section and a mouth with a predetermined opening width, can in the appropriate spatial assignment the post to the consoles a placement of the post on the Consoles are made by changing the relative position between the two becomes a positive connection that prevents the loader from separating from the vehicle. It it is pointed out that the console on the post and the mouth on the vehicle or the mouth on the post and the console can be located on the vehicle.

A line inclined to a horizontal line on the the most distant points of the cross section of the Consoles lie, does not extend in the direction of force application of the loader, so that the positive connection not by the action of external forces when loading or Unloading can be solved. Rather, the posts only be brought into a position in which the mouths release the consoles.

If a pin, a pin, a nose, a projection or the like and in the post a recess or vice versa can be provided by means of this second positive connection of the loader on the Centered, guided and against a transverse console Movement are secured. The arrangement of the pin or the same, especially on the back of the console it is easy to place the loader on the consoles almost anywhere and then into the preferably V-shaped recess to tilt in and thus to center.

With simple means, a console with a maximum and a minimum distance can be created if this is from a tube or solid material, in particular square or oval cross-section is formed. However, too a rectangular, triangular or other cross section useful.

The arrangement of a front surface of the console under the claimed inclination is related to the inclination the line through the bodies and granted a form-fitting Connection of the loader on the consoles in the normal operating position.

The loader can be connected by means of a further contact surface additionally support so that the permissible surface pressure do not exceed the other points or contact areas becomes.

Fig. 1

ein Fahrzeug mit einem erfindungsgemäßen Lader,

Fig. 2

eine Verbindung von Pfosten des Laders mit Konsolen des Fahrzeugs im fertig montierten Zustand des Laders in Seitenansicht,

Fig. 3

die Verbindung des Pfostens und der Konsole in einer Ansicht von hinten und

Fig. 4 - 6

die räumliche Lageänderung zwischen einem Pfosten und einer Konsole beim Demontieren des Laders.

In the drawing, an embodiment of the invention described in more detail below is shown. It shows:

Fig. 1

a vehicle with a loader according to the invention,

Fig. 2

a connection of the post of the loader with brackets of the vehicle in the fully assembled state of the loader in side view,

Fig. 3

the connection of the post and the console in a view from behind and

4 - 6

the spatial change in position between a post and a console when dismantling the loader.

FIG. 1 shows a vehicle 10 in the manner of a field, lawn or municipal tractor or the like with a frame 12, which is powered by a pair of front and a pair Rear wheels 16 and 14 are supported on the floor and is moved by these. A loader 18 is equipped with horizontal rear brackets 20 or cross braces from opposite Out of sides of the frame 12, and with a Front weight carrier or other structure that is not is visibly attached to the front end of the frame 12, connectable.

In particular, the loader 18 is symmetrical to a central one Longitudinal axis and includes a pair of upright Post 22 (only the right post of which is visible is) located on opposite sides of the vehicle 10 are located, the lower ends of the posts 22 on the rear consoles 20 are releasably secured in a manner, which is described in detail below. A U-shaped The strut 24 has legs 26 which face each other Sides of the vehicle 10 lie with their rear ends the inside of the posts 22 spaced from the top and the front ends of which are connected by a bent part, that from an integrated parking stand and a detachable one Holding structure exists and thereafter assembling the holder and park 28 is called. The bracket and parking assembly 28 is detachable on a front weight carrier or other structure secured to the frame 12 or part thereof is. Loader 18 includes a pair of loader arms 30 that correspond the posts 22 are aligned longitudinally and their rear ends pivot in bearings 32 at the upper ends attack the post 22 to allow vertical movement. Each of a pair of lifting cylinders 34 is one between one of the posts 22 and an adjacent loader arm 30 attached and extendable or retractable to raise and lower the loader arms 30 to enable their storage 32. A Bucket 36 is pivotable at the front end of loader arms 30 attached, and a pair of bucket cylinders 38 is between the loader arms 30 and the bucket 36 are arranged.

The present invention relates to the manner in which the posts 22 attached to the rear brackets 20 are. In detail, the rear consoles 20, such as shown in Figures 2 and 3, from tubes with a square cross-section made with each console 20 so aligned is that a front and back surface 39 and 40 make an angle of about 18 degrees with the vertical while top and bottom surfaces 42 and 44 form an angle of about 18 Include degrees with the horizontal. Below the horizontal the plane of the footprint of the vehicle 10 and vertical understood the perpendicular to it. Everyone the post 22 is formed by a rail open at the front, a cast or forged one at the lower end of each Bracket 46 with an open mouth 50 or Sensor is welded, which is shaped so that it Post 22 can hold on the brackets 20. The entrance of everyone Mouth 50, i.e. H. the mouth width, as shown in Figure 2, bounded by a front contact surface 52 on which the front surface 39 of the console 20 at a location below an upper front corner 54 which engages from the intersection the front and surface 39 and 42 is formed. Further the entrance is through a rear contact surface 56 limited, which encompasses a lower rear corner 58 that of the adjacent back and bottom surfaces 40 and 44 are formed becomes. It should be noted that the distance between the front and the rear contact surface 52 and 56 of the mouth 50, ie its mouth or opening width, in its area of engagement with the front surface 39 and the lower surface 44 is smaller than the distance between the top front and lower rear corner 54 and 58 of the rear console 20, which also forms the main or maximum distance. This prevents the posts 22 from moving release rear consoles 20. Each mouth 50 contains one further contact surface 60 arranged between the others, that comes into contact with the console 20 at one point, those above the upper rear corner 62, which are marked by the Intersection of the top and back surfaces 42 and 40 is formed, lies. The mouths 50 are each with indentations, gaps, Provide relief bays or undercut areas that the mouth 50 between the contact surfaces 52, 56, 60 are a certain distance from the console 20 and make it possible to tilt the posts 22 forward and them from the consoles in the manner described in detail below 20 to lift when the loader 18 is removed from the vehicle 10 shall be. In particular, each mouth 50 contains one front arcuate undercut surface 64 which is between the front and further contact surfaces 52 and 60 extends, as well as a rear arcuate undercut surface 66, which is between the further and the rear Contact surface 60 and 56 is located. As Figure 3 shows in the rear wall of each bracket 46 an inverted or after V-shaped recess 70 open at the bottom for centering, and on the rear surface 40 of the rear console 20 a pin 72 is provided which is at the top in the recess 70 is placed.

The removal of the posts 22 from the brackets 20 is as follows with reference to Figures 2 and 4 to 6 in detail described. At the beginning, the loader 18 is on the Vehicle 10, as shown in Figure 1, i.e. i.e., the Posts 22 are each in an upright position in which the consoles 20 are in the mouths 50 and a release is prevented by these by the front and rear Contact surface 52 and 56 at locations below the upper front and rear corners 54 and 58 are located their distance from each other is less than the diagonal Distance, d. H. the maximum distance between the two Corners 54 and 58 of console 20.

If the loader 18 is to be removed from the vehicle 10, the lifting cylinders 34 for lowering the loader arms 30 actuated to place the bucket 36 on the ground. A Jack of the combined holder and parking assembly 28 will then from a holder placed on the vehicle 10 released, and the lift cylinders 34 continue the U-shaped Strut 26 together with the posts 22 over the brackets 20 to pivot that the holder and parking assembly 28 comes into contact with the ground. If the post 22 after swivel forward, the mouths 50 pass through the positions shown in Figure 4, 5 and 6, so that the Contact surfaces 52 and 56 along the console 20 to the location move, which is shown in Figure 6 by further The lifting cylinders 34 extend freely from the console 20 be lifted off. When the brackets 46 of the posts 22nd high enough to release the front wheel tires 16 the loader hydraulics is released and the vehicle 10 reset without the loader 18. The loader 18 is now through the holder and parking assembly 28 and the shovel 36 held. If necessary, the lifting cylinders 34 can be actuated to lower the posts 22 to the bottom.

To put on the charger 18 are the above Steps performed in reverse order. But when the mouths 50 with the respective console 20 in connection occur, the pin 72 leads in connection with the recess 70 the posts 22 in the desired position on the brackets 20th

It is advantageous that both putting on and taking off the post 22 of the loader 18 performed on the brackets 20 can be done without the need for tools or adjustment must be made. Even if the mouths 50 specifically for tool-free attachment to brackets 20 with a square Cross-section are formed and this is the preferred Execution due to the relative simplicity of manufacture represents, it is conceivable that the mouths 50 and 20 consoles can be carried out in other equivalent forms. The mouths 50 can, for example, be C-shaped be, with brackets 20 which have an oval cross-section. These are aligned so that the contact surfaces 52, 56, which limit the front and back of the mouth 50, with the consoles at locations below the main axis of the oval Cross section in contact so the posts 22 to secure the consoles 20.

Claims (8)

1. A loader (18) with posts (22) for attachment to a vehicle (10), by means of one or more brackets (20) and throats (50) receiving the brackets (20) therein, characterized in that the bracket (20) has a non-circular cross-section with a maximum distance between two points remote from one another in the plane of reception of the loader (18), in that the throat (50) has two contact surfaces (52, 56) for abutment with the points and in that the width of the opening of the throat (50) is smaller than the maximum distance.
2. A loader according to claim 1, characterized in that a line extending though the end points of the maximum distance is inclined in relation to the standing surface of a vehicle (10) receiving the loader (18).
3. A loader according to claim 1 or 2, characterized in that the bracket (20) has a pin (72) and the throat (50) has a recess (70) adapted to receive the pin (72) or vice versa.
4. A loader according to one or more of the preceding claims, characterized in that the bracket (20) has a square cross-section and the maximum distance is the path from a rear, lower corner (58) up to a front, upper corner (54) of the cross-section of the bracket (20).
5. A loader according to one or more of the preceding claims, characterized in that a front surface (39) of the bracket (20) is inclined down and to the rear and subtends an angle of about 18 degrees with the vertical.
6. A loader according to one or more of the preceding claims, characterized in that a further contact surface (60) is provided between the two contact surfaces (52, 56) and is adapted to make contact in particular at a point directly above a rear, upper corner (62) of the bracket (20).
7. A loader according to one or more of the preceding claims, characterized in that the pin (72) on the bracket (20) extends to the rear, i.e. against the direction of reception of the loader (18) on the bracket (20).
8. A loader according to one or more of the preceding claims, characterized in that the throat (50) is C-shaped and the bracket (20) has an oval cross-section.

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