FI126580B - Track processing unit for a track machine - Google Patents

Description

BACKGROUND OF THE INVENTION The present invention relates to a snowmobile for making snowmobile grooves, which snowmobile is equipped with a handle which can be attached at one end to a traction unit, such as a snowmobile, and at one end to a snowmobile body, is installed for removal.

Typically, a snowmobile is pulled behind a motorized vehicle such as a snowmobile or ATV. Of course, the traction unit can be any other suitable purpose, for example a horse. Cross-country skiers make snow in the snow for a traditional skiing style.

Many different track planes are known in the art. They have a drawbar that can be attached at one end to the drawbar. At the other end of the traction sheave is mounted a ski slider frame, underneath which two ski shoeing units are cut, which cut into the snow the desired width and depth of the ski slots. It is possible to attach additional weight or weights to the frame, which allows the ski slider to bite better on the snow.

In known track planers, the track forming units attached to the frame are fixedly attached, usually by welding. The disadvantage here is that only one type of track can be made with the track planer, ie both the distance between track tracks and the track track width are always the same. It also has the disadvantage that it is extremely difficult to replace the track unit when it is worn or damaged. In traditional ski planers, the track modification is implemented in two steps. First there is the blade formation which softens / breaks the icy snow surface, followed by a separate shaping part which forms the track.

EP 2078789 A2 discloses a track planer for making track tracks in snow. Underneath the chassis frame you have a removable unit installed! two skiing units. The skid frame is attached to the drawbar. Each ski-forming unit is secured to its front and rear portions, and each of the attachment points has groups of holes made in both the ski-forming unit and the ski slider body. With this solution, the removal and attachment of the track-forming units is slow. It is an object of the present invention to provide a track planer without the problems mentioned above. The track planer according to the invention is characterized in that each track editing unit comprises both track breaking / softening function and track shaping function in one and the same unit.

A preferred embodiment of the track planer according to the invention is characterized in that the track forming units are fastened with bolts and nuts or screws, which are provided with holes for the bolts or screws in the track planing frame.

Another preferred embodiment of the track planer according to the invention is characterized in that the track shaping units are fastened by means of a quick attachment, for example a pin and a pin.

Yet another preferred embodiment of the invention is characterized in that each track forming unit is fastened at its front and rear, and that each set of fastening points are provided with hole groups on the track planing frame.

Other preferred embodiments of the invention are defined in claims 5 to 7.

An advantage of the invention is that many different types of tracks can be made with a track planer. For example, the distance between ski tracks is adjustable. Similarly, the width of the ski track is adjustable for different ski widths. In addition, the track modification units can be easily replaced with new ones when they are broken or worn too much.

The invention will now be explained in more detail by means of preferred embodiments with reference to the accompanying drawings, in which:

Figure 1 shows an exploded view of a planer according to the invention.

Fig. 2 shows a track planer of the invention assembled with the protective cover removed.

Figure 3 shows the track planer of the invention in an inverted position with the track forming units disengaged.

The ski planer consists of a frame 1, a drawbar 2, 3 attached to the frame, and ski-forming units 4 mounted under the frame. The ski planer according to the invention may additionally be provided with a protective cover 5 shown in Figures 2 and 3.

The body 1 is a substantially plate-like metal part. As shown in Figure 1, its front and back ends can be bent upward. Most importantly, this is important so that the sled does not bite into the snow when it is pulled. An additional weight or weights (not shown in the drawings) can be attached to the frame to increase the weight of the ski slider, which ensures better performance of the skate.

The handle 2, 3 is thus attached to the frame 1. The bent parts 2 facing towards each other face each other in front of the track planer, and between them the handle part 3, which is preferably a straight bar, is attached. The joint between the link parts 2 and 3 is implemented such that one of the joints is a bolt joint and the other is a pin + pin. When the pin is removed and the pin is removed, the handle portion 3 can be bent relative to the parts 2 over the track planer, for example for transportation or storage. In this position, the track planer takes up so little space that it can be placed in the trunk of a passenger car, for example. Also, the attachment of the stem members 2 to the frame 1 is preferably made by bolts or screws, whereby the parts 2 can also be removed if necessary.

At the end of the rod 3 is a fastening member 8, which is an annular member. It is used to attach the ski planer to a traction unit, such as a snowmobile.

Thus, in Figure 1, there are always two loose forming units 4 loose. In the invention, each track editing unit includes both track breaking / softening function and the actual track design in one unit. As mentioned, these have traditionally required two separate parts to be mounted in series on the skid frame.

At the bottom of the ski slider body 1, there are mounting hole groups 6 for each of the ski forming units. quick mounting, for example with pin and pin. The attachment can also be made in other ways, for example by a press fit, whereby the width can be infinitely adjusted within the limits of the solution.

Thus, each of the track forming units is mounted at its front and rear, so that each track forming unit has two three hole groups 6 on the frame 1. Since the hole set has three holes, each track forming unit 4 can be positioned at three different lateral positions, i.e. There may be more than three parallel holes. Instead of individual holes, grooves could also be used, whereby the adjustment is infinitely variable. Also, the number of attachment points for the track forming units 4 is not limited to two (front and rear), but other quantities are also required when required.

Reference numeral 7 denotes shielding plates which overlap the hole group 6 when the track forming units 4 are attached. The guard plates 7 have one hole for the fixing screw. At the same time, however, it covers two other holes in the group, preventing snow from "inside" the slider through holes that are not in use. The shield plates 7 also have folds with a larger hole. The fold supports the extra weight, and in addition, the hole in it can be used to help bind the extra weight.

Since the track formation units 4 are removably attached, their position can be changed as described above, or replaced when the previous ones are worn, if necessary. It is still possible to replace, for example, wider skiing units, for example by making a trail for hiking.

Fig. 2 shows a protective cover 5 which can be mounted on a ski planer, if desired, to prevent snow from entering the ski planer. The cover can also act as a sliding surface when the ski slider is turned upside down.

Figure 3 shows a situation in which the track planer is turned upside down. The track formation units 4 are shown disassembled so that the hole groups 6 are visible.

It will be apparent to one skilled in the art that the invention is not limited to the above embodiments, but may vary within the scope of the appended claims. For example, the drawbar can be provided with a mechanical safety device which, when the ski slider suddenly stops, for example due to wood, releases the drawbar grip from the snowmobile, thereby preventing the car from suddenly stopping.

If necessary, the symbols which may be presented in the specification together with other characteristics may also be used separately.

Claims (7)

1. A ski machine for making ski tracks in snow, which track machine is provided with a drawbar (2, 3) which is fastened at its first end to a towing unit, such as a snowmobile, and which at its other end is attached to the frame of the track machine ( 1), under which frame is mounted track processing units (4) for making ski tracks, the track processing units (4) are mounted in a detachable manner, characterized in that both track processing units have both a track breaking / softening function and a track forming point in function. one and the same unit. Track machine according to Claim 1, characterized in that the track processing units (4) are fixed by means of bolts and nuts or screws, for which bolts or screws are made holes in the frame of the track machine. Track machine according to claim 1, characterized in that the track processing units (4) are secured by means of a quick coupling, such as pin and pin. Tracking machine according to claim 2 or 3, characterized in that both track processing units are fixed to the front and rear, and that hole groups (6) for both fastening points are made in the frame of the tracker (1). Tracking machine according to claim 4, characterized in that both hole groups (6) include three holes, whereby both track processing units (4) are fixed at three different points. Tracking machine according to any one of claims 1-5, characterized in that a protective plate (7) covering the holes which are not in use is mounted on each top of the tracker frame (1), in each attachment point for a track processing unit (4). and which is secured by the same fastening means as the groove processing unit (4). Tracking machine according to one of Claims 1 to 6, characterized in that the protective plate (7) is provided with an elevation, in which bending is made a hole for attaching an additional weight.