A holder for tools, preferably for a chainsaw, and a working machine, preferably a winch, with the said holder

Abstract

The invention belongs to the field of constructional details in forestry winches or other machines, which require a space for storing tools. The present invention relates to an improved holder (12) for tools, preferably a chainsaw (3), and a working machine, in particular a winch, with the said holder. The holder comprises: - a first plate (12a), which is arranged to be mounted on the working machine in a fixed manner, - a second plate (12b), which is in its central part (12b'') convex and arranged to be in contact with the first plate (12a), - a third plate (12c) and a fourth plate (12d), which is mounted on the second plate (12b) so that a space is created between the third and fourth plate, said space being arranged to receive a leaf of the chainsaw or a part of any other tool, - a fulcrum (12e) connecting the first plate (12a) and the convex part (12b'') of the second plate so that the second plate (12b) and all other plates (12c, 12d) attached to it can rotate around the fulcrum, and - a suitable locking mechanism (12f) for locking rotation of the holder. Rotation around the fulcrum allows that the holder has a transport position and a position for pulling out the tool, wherein the angle between both positions is between 45° and 115°, optimally around 90°.

Description

Field of the invention

[0001] The present invention belongs to the field of forestry winches, more precisely to the field of constructional details in forestry winches or other machines, which are provided with a space for storing a chainsaw. The present invention relates to an improved holder for tools, preferably a chainsaw, and a working machine, in particular a winch, with the said holder.Background of the invention and the technical problem

[0002] During forestry work a need for a chainsaw or other tools is common, therefore many winches and similar working machines are provided with a space or a holder for storing and holding tools such as a chainsaw. Known solutions have a holder for the chainsaw mounted on the inner side of a protective net in a fixed manner, wherein the holder is mounted at an angle. Disadvantages of such holders are: insufficient protection of the chainsaw during transportation, possibly resulting in the chainsaw being damaged, which causes hampered or impossible use of the chainsaw, possibility of the chainsaw falling out during transportation, and difficult pulling out of the chainsaw from the holder.

[0003] Alternatively, the holder of the chainsaw could be installed parallelly to the ground, as described in document SI22801, which would significantly improve protection of the chainsaw and prevent falling out of the chainsaw during transportation, however, the positioning according to SI22801 hampers pulling out of the chainsaw from the holder.

[0004] Therefore, the technical problem, which is solved by the present invention, is a constructional design of the holder allowing better protection of the chainsaw and easy access to the chainsaw when its use is required. The solution should be suitable for other machines, which are used in forestry and in which presence of the tool holder is required.State of the art

[0005] Patent SI22801 describes a winch with a device enabling safe and reliable mounting of a forestry tool onto the forestry winch, wherein the device at mounted in the area of a safety guard or a net of the forestry winch. The mentioned device has a first part provided with an approximately vertical slot arranged to receive a leaf of a chainsaw including the chain with cutting teeth, as well as one additional part removed from the first part, wherein the second part has an approximately horizontal supporting surface arranged to be in contact with the body of the chainsaw, and wherein at least one attachment means for attaching the body of the chainsaw to the said second part is provided.

[0006] This solution describes the approximately horizontal position of the chainsaw during transportation, which differs from the present invention.Description of the solution to the technical problem

[0007] The technical problem is solved as defined in the independent claim, wherein the preferred embodiments of the solution are disclosed in the dependent claims. The essence of the improved tool holder, preferably chainsaw holder, for installation onto a working machine, is in that the holder comprises: a first (carrier) plate, which is arranged to be mounted on the working machine in a fixed manner, a second plate, which is in its central part convex and arranged to be in contact with the first plate, a third plate and a fourth plate, which is mounted on the second plate so that a space is created between the third and fourth plate, said space being arranged to receive a leaf of the chainsaw or a part of any other tool, a fulcrum connecting the first plate and the convex part of the second plate so that the second plate and all other plates attached to it can rotate around the fulcrum, and a suitable locking mechanism for locking rotation of the holder.

[0008] The rotational mounting via the first plate and the second plate is thus arranged for installation onto a working machine and enables rotation around the fulcrum so that the holder has a transport position and a position for pulling out the tool, wherein the angle between both positions is between 45° and 115°, preferably between 60° and 100°, most preferably around 90°. Preferably rotation is, due to safety, limited to 90° with regards to the transport position. The suitable angle is defined with suitable movement restricting elements or in any other known manner such as curved tin plate or similar solutions known to the person skilled in the art. For example, the first plate is provided in its bottom part with a cut-out into which a screw connecting the second, third and fourth plate is trapped upon reaching the final position. Preferably the first carrier plate has an additional, second cut-out in its upper part, on the same side as the cut-out in the bottom part, wherein the second cut-out in the upper part is arranged to receive a bolt that connects the second, third and fourth plate once the holder reaches the second extreme position.

[0009] Said plates are preferably rectangular or square-shaped, they may cover the chainsaw leaf in its entirety, wherein a suitable distance between the third and fourth plate is ensured with distancing elements, bushings, nuts or similar elements. The second, third and fourth plate are connected to each other with known inseparable connections such as welding or with known separable connections such as bolts and nuts, preferably with bolts and nuts. The material for the said holder is any suitable material known to the skilled person, preferably metal is used. The material of the carrier plate and all other plates may be the same or different, wherein for example the third and the fourth plate may be made from wood or plastic. In addition, the outermost plate, usually the fourth plate, is provided with an additional hook or an attachment for receiving a handle of an axe or any other tool, which does not need a second holder according to the invention or does not need storage in any other place.

[0010] The fulcrum may be achieved in any suitable manner, preferably a bolt is used, which is installed through a hole in the frame (housing) of the working machine, through a hole in the middle (central) part of the first plate and through a hole in the middle (central) part of the second plate. The bolt may be fixed with a nut, which is then located between the second and the third plate.

[0011] The holder of the chainsaw is locked in the required position with a locking mechanism of a safety element, which may be any known in the art. The preferred embodiment of the locking mechanism is a locking pin, which is known and is commercially available. In case movement of the holder into the position for use, i.e., pulling out the tool, the locking pin has to be pulled out, then the holder is rotated into the required position, which is suitable with regards to the height of the installed holder on the machine and the height of the user. Then the locking pin is re-inserted, thus locking the position. Alternatively, upon pulling the tool from the holder, the holder returns to the transport position. However, this option is less preferred, as the user has to change positions after finished use of the tool in order to return it to the holder. In this case, the locking pin has to be pulled out, the holder rotated and only then the tool can be returned into the holder and into the transport position.

[0012] The first and the second plate preferably have an ear (i.e., a protruding part) on one side, into which the locking pin may be inserted, thus further connecting the plates between themselves and preventing the second plate from rotation around the fulcrum. In case the locking mechanism is released, the first and the second plate are no longer connected, thus allowing the second plate to rotate around the fulcrum into the required position, which can be locked with the same locking mechanism.

[0013] The working machine is preferably a forestry winch, and the preferred tool is a chainsaw, which is mostly used in forestry.

[0014] Furthermore, another advantage of the improved holder is in that the holder is not installed on the safety net, so that the handle could protrude outside the winch area, but the holder is mounted on the frame or housing of a working machine or a forestry winch, respectively, so that in the transport position the whole tool, preferably chainsaw, is hidden (does not protrude out of the machine).

[0015] The described holder protects the tools more reliably than known solutions, while it simultaneously allows easy access to the tool, when needed during work.

[0016] The improved holder of the chainsaw and a forestry winch with the said holder will be described in further detail based on exemplary embodiments and figures, which show: Figure 1A forestry winch with a known holder for a chainsaw Figure 2A forestry winch with an improved holder for a chainsaw according to the invention in a transport position Figure 3A forestry winch with an improved holder for a chainsaw according to the invention in a position for pulling the chainsaw out from the holder Figure 4An explosion diagram of the holder according to the invention Figure 5An elevation view of the holder according to a possible embodiment

[0017] Figure 1 shows a winch 1 with a known holder 2 of a chainsaw 3, wherein below the protective grid 1a a frame of the holder 2 is installed, said holder 2 being arranged to receive a leaf of the chainsaw 3, while its handle 3a protrudes outside the winch 1, which upon impact and vibration may result in damaged chainsaw or even the chainsaw 1 falls out from the holder 2.

[0018] Figures 2 and 3 show the winch 1 with an improved holder 12 of the chainsaw 3 according to a possible embodiment, wherein figure 2 shows the position of the holder 12 during transport (transport position), when the chainsaw 3 is fully hidden behind the safety grid 1a and the frame of the winch 1, which provides optimal protection for the chainsaw 3. In addition, falling out of the chainsaw 3 is prevented. Figure 3 shows a position for pulling out the chainsaw 3. This position allows simple and user-friendly pulling out of the chainsaw 3 from the holder 12, which is especially pronounced in larger winches due to the higher position of the holder 12. As visible form both figures, the holder 12 may be installed on any side of the winch 1 frame, whereas the winch 1 may also be equipped with two holder 12, one on each side. Shapes of the holders may be the same or different, so that they allow placement of the same or different tools.

[0019] Figure 4 shows an explosion scheme of the holder 12 according to a possible embodiment, which is shown in figure 5 as a whole. The holder 12 comprises the following components: a first plate 12a, which is arranged to be mounted on the working machine 1 in a fixed manner, a second plate 12b, which is in its central part 12b" convex and arranged to be in contact with the first plate 12a, a third plate 12c and a fourth plate 12d, which is mounted on the second plate 12b so that a space is created between the third 12c and fourth 12d plate, said space being arranged to receive a leaf of the chainsaw 3 or a part of any other tool, a fulcrum 12e connecting the first plate 12a and the convex part 12b" of the second plate 12b so that the second plate 12b and all other plates 12c, 12d attached to the second plate 12b can rotate around the fulcrum 12e, and a locking mechanism 12f installed on an ear 12a' of the first plate 12a, which is provided for locking rotation of the holder.

[0020] The second 12b, the third 12c and the fourth 12d plate are connected to each other with bolts 12g, while a suitable distance between the third and the fourth plate 12c, 12d is ensured with nuts 12h. The first and the second plate 12a, 12b are provided with an ear (i.e., a protruding part) 12a', 12b' on one side, said ear being arranged to receive a locking pin 12f, so that the plates are additionally connected to each other and the second plate 12b cannot rotate around the fulcrum 12e. In case the locking pin 12f is pulled out or released, the first and the second plate 12a, 12b become disconnected and the second plate 12b together with the third and the fourth plate 12c, 12d may rotate around the fulcrum 12e into the required position for pulling out the chainsaw or any other tool. Rotation around the fulcrum 12a is enabled with an angle between both positions (transport and use (pulling out) between 60° and 100°, optimally around 90°.

[0021] As shown in figure 5, rotation around the fulcrum 12e is for safety limited to angle of 90° with regards to the transport position, said limitation is achieved with a cut-out 12a" in the bottom part of the first, carrier plate 12a. The cut-out 12a" is shaped so that upon reaching the final position, a bolt is stuck in the cut-out 12a", thus preventing further rotation of the holder 12. The first plate 12a has an additional, second cut-out 12a'" in the upper part, said cut-out 12a"' being provided on the same side as the first cut-out 12a", wherein the second cut-out 12a"' in the upper part is intended to receive the bolt 12g, which connected the second 12b, the third 12c and the fourth plate 12d, once the second extreme position of the holder is reached.

[0022] The above-presented embodiments are purely exemplary. In the scope of the invention as described above and defined in the claims, other embodiments of the holder for tools are possible, which are obvious to a skilled person, which does not limit the essence of the invention as described herein.

Claims

1. A holder (12) for tools, preferably a chainsaw (3) arranged to be mounted on a working machine (1), wherein the said holder (12) is characterized by comprising - a first plate (12a), which is arranged to be mounted on the working machine (1) in a fixed manner, - a second plate (12b), which is in its central part (12b") convex and arranged to be in contact with the first plate (12a), - a third plate (12c) and a fourth plate (12d), which is mounted on the second plate (12b) so that a space is created between the third (12c) and fourth (12d) plate, said space being arranged to receive a leaf of the chainsaw (3) or a part of any other tool, - a fulcrum (12e) connecting the first plate (12a) and the convex part (12b") of the second plate (12b) so that the second plate (12b) and all other plates (12c, 12d) attached to the second plate (12b) can rotate around the fulcrum (12e), and - a locking mechanism (12f) for locking rotation of the second plate (12b).

2. The holder according to claim 1, characterized in that rotation around the fulcrum (12e) allows the holder (12) to have a transport position and a position for use, i.e., pulling the tool out from the holder.

3. The holder according to claim 2, characterized in that the angle between both mentioned positions is between 45° and 115°, preferably between 60° and 100°, most preferably around 90°.

4. The holder according to the preceding claim, characterized in that the suitable angle is defined with suitable restrictive elements or in any other way, preferably rotation is for safety limited to an angle of 90° with regards to the transport position with a cut-out (12a") in the bottom part of the first plate (12a), said cut-out being shaped so that upon reaching the transport position a bolt is trapped in the cut-out (12a") thus preventing further rotation of the holder (12).

5. The holder according to the preceding claim, characterized in that the first plate (12a) has in its upper part an additional, second cut-out (12a'") on the same side as the first cut-out (12a") in the bottom part of the first plate (12a), wherein said second cut-out (12a"') is arranged to receive a bolt (12g) connecting the second, third and fourth plate (12b, 12c, 12d), once the use position of the holder (12) is reached.

6. The holder according to any of the preceding claims, characterized in that said plates (12a, 12b, 12c, 12d) are preferably shaped as rectangles or squares, wherein the suitable distance between the third and the fourth plate (12c and 12d) is ensured with distancing elements, bushings, nuts or similar elements (12h).

7. The holder according to any of the preceding claims, characterized in that the second, third and fourth plate (12a, 12b, 12c, 12d) are connected to each other with known inseparable connections such as welding or with known separable connections such as bolts and nuts (12g, 12h), preferably with bolts and nuts, wherein the latter may at the same time function as distancing elements for ensuring a suitable distance between the third and the fourth plate (12c, 12d).

8. The holder according to any of the preceding claims, characterized in that the fulcrum (12e) is provided in any suitable manner, preferably the fulcrum is a bolt (12e) installed through a hole in the housing of the working machine, a hole in the middle part of the first plate (12a) and through a hole in the middle part (12b") of the second plate (12b), wherein the said bolt (12e) is fixed with a nut, which is then located between the second and the third plate (12b, 12c).

9. The holder according to any of the preceding claims, characterized in that the locking mechanism is any suitable lock (12f), safety element or a pin, preferably a locking pin.

10. The holder according to any of the preceding claims, characterized in that the locking mechanism (12f) is installed in the ear of the first and second plate (12a', 12b'), so that in a locked state both plates (12a, 12b) are additionally connected between each other and the second plate (12b) cannot rotate around the fulcrum (12e), while in an unlocked state the first and the second plate (12a, 12b) are disconnected and the second plate (12b) can rotate around the fulcrum (12e) into any of the possible positions.

11. A working machine with the holder according to any of the preceding claims.

12. The working machine according to claim 11, characterized in that the machine is a forestry winch.

13. The working machine according to claim 12, characterized in that the holder (12) for tools is installed on a frame of the winch (1) under a movable protective net (1a).

14. The working machine according to claim 12, characterized in that it has two holders (12) for tools, one on each side of the winch frame, wherein the holders (12) may have the same or a different shape.

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