Mobile Forstmaschine

The mobile forestry machine addresses the issue of battery discharge in forestry tools by integrating a charger and supply battery, enabling on-site charging and extended operation in forest environments.

DE202024107150U1Active Publication Date: 2025-03-13WELSCHOF BERNWARD
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Patent Information

Application Number
DE202024107150
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-03-13
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Battery-operated handheld devices used in forestry, such as chainsaws and cutters, quickly discharge during professional use in the forest, requiring frequent recharging due to the absence of power connections in forest areas.

Method used

A mobile forestry machine equipped with a charger and a supply battery, which serves as a power bank, allowing for on-site charging of battery-operated devices during operation in the forest.

Benefits of technology

Enables continuous operation of battery-operated handheld devices by providing a mobile power supply, reducing the need for frequent battery replacements and allowing for efficient use in remote forest areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

Mobile forestry machine (1) equipped with a chassis (2) and a drive unit, wherein the forestry machine (1) does not have a driver's workstation for an operator, wherein the forestry machine (1) comprises a drive unit (3) which is protected by a protective bracket (10), characterized in that the forestry machine (1) is designed as a carrier for one or more of the following components: • at least one charger (15) designed to charge a battery (16) of a battery-operated hand tool (17), • at least one supply battery (20) designed to supply the charger (15) with electrical energy during charging of the battery (16).
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Description

[0001] The invention relates to a mobile forestry machine which is provided with a chassis and a drive unit, wherein the forestry machine does not have a driver's workplace for an operator, wherein the forestry machine comprises a drive part provided with a drive unit which is protected by a protective bar device.

[0002] In such forestry machines, the drive part is protected from damage during operation of the forestry machine in the forest by means of a protective bar device.

[0003] Such mobile forestry machines are used as tree felling aids and as forwarding aids for delivering felled trees to a forest road. Since the forestry machine does not have a driver's cab, a forestry machine of this type can be built compactly and lightweight, allowing it to be used in forest areas unsuitable for conventional large machines.

[0004] Such forestry machines are increasingly being used in combination with battery-powered hand tools. Such battery-powered hand tools can include battery-powered chainsaws, battery-powered brush cutters, battery-powered pole pruners, and the like.

[0005] This poses the problem that the batteries of battery-powered hand tools discharge quickly during professional use and often need to be recharged several times during a working day in the forest. Since there is no power connection in the forest, the problem arises as to how the batteries of battery-powered hand tools can be charged during a working day in the forest.

[0006] The object of the present invention is to provide a mobile forestry machine that offers a solution to the above-mentioned problem in a simple manner.

[0007] This object is achieved according to the invention in that the forestry machine is designed as a carrier for one or more of the following components: • at least one charger designed to charge a battery of a battery-operated hand tool, • at least one supply battery which is designed to supply the charger with electrical energy when the battery is being charged.

[0008] The idea of ​​the invention is therefore that at least one supply battery, which is preferably designed as a power bank, i.e. as a high-energy-density accumulator, is carried by a mobile forestry machine, so that during operation of the forestry machine in the forest, the supply battery carried by the mobile forestry machine is also available in the forest as an electrical energy source.

[0009] The at least one supply battery carried by the mobile forestry machine makes it possible in a simple manner to provide a mobile power supply during operation of the mobile forestry machine in the forest with the at least one supply battery, which is preferably designed as a power bank, i.e. a high-energy-density accumulator, with which the batteries of the battery-operated hand tools can be charged during a working day in the forest.

[0010] The at least one supply battery preferably has a commercially available power connection, for example a 230V power connection, in particular a 230V Schuko socket, to which the at least one charger, which is also carried by the mobile forestry machine, can be connected by means of a commercially available plug for power supply.

[0011] According to an advantageous embodiment of the invention, the protective bar device is designed as a support for one or more of the following components: • at least one battery-operated hand tool that is powered by the battery, • at least one charger designed to charge the battery of the battery-operated hand tool, • at least one supply battery which is designed to supply the charger with electrical energy when the battery is being charged.

[0012] The protective bar assembly of the mobile forestry machine has a robust design, capable of absorbing high forces, to protect the drive unit from damage during operation of the forestry machine in the forest. This allows the protective bar assembly to easily support at least one battery-operated hand tool, at least one charger, and at least one supply battery – without requiring additional structural measures to increase stability.

[0013] According to an advantageous embodiment of the invention, a receiving device can be detachably fastened to the protective bar device, on which at least one of the components is held, in particular the at least one battery-operated hand-held tool and / or the at least one charging device.

[0014] With such a mounting device, one or more battery-operated hand tools and / or one or more chargers can be easily carried on the protective bar device and thus on the forestry machine.

[0015] According to an advantageous embodiment of the invention, the receiving device is designed as a support frame which can be releasably fastened to the protective bar device by means of at least one hook and / or a tension lock.

[0016] The mounting device can thus be easily attached to the protective bar device if necessary in order to carry at least one battery-operated hand tool and / or at least one charger, or removed from the protective bar device.

[0017] According to an advantageous embodiment of the invention, a storage tray can be releasably attached to the support frame, in particular by means of at least one hook and / or a tension lock. One or more battery-operated hand tools can be easily mounted and carried on the mobile forestry machine in such a storage tray.

[0018] According to an advantageous embodiment of the invention, at least one control cabinet, in which the at least one charging device is arranged, can be releasably fastened to the support frame, in particular by means of at least one hook and / or a tension lock. In such a control cabinet, one or more charging devices, with which the batteries of the battery-operated handheld tools are charged, can be easily charged during operation of the mobile forestry machine in the forest. The control cabinet, in which one or more charging devices are arranged, enables simple and effective protection of the charging devices and the batteries to be charged from moisture, weather influences, and mechanical damage during use of the forestry machine in the forest.

[0019] According to an advantageous embodiment of the invention, the at least one supply battery can be releasably attached to the protective bar device, in particular by means of at least one hook and / or a tension lock. The supply battery has a considerable weight in the range of at least 15 kg. Since the protective bar device of the mobile forestry machine, due to its functionality, has a stable structure that can absorb high forces that occur in order to protect the drive unit from damage during operation of the forestry machine in the forest, the at least one supply battery can be releasably attached directly to the protective bar device in a simple manner – without having to take additional structural measures to increase stability.

[0020] According to an advantageous embodiment of the invention, the drive unit with a cable winch and the protective bar device is arranged at the front of the vehicle, viewed in the longitudinal direction of the vehicle. A vertical bulkhead extending in the transverse direction of the vehicle is arranged adjacent to the drive unit. A stake platform is arranged adjacent to the bulkhead. An adjustable ramp shield is arranged at the rear of the vehicle. A mobile forestry machine constructed in this way can be used as a felling aid for trees and as a forwarding aid for delivering felled trees to a forest road, provided the force flow of the cable winch is favorable.

[0021] According to an advantageous embodiment of the invention, the at least one battery-operated hand-held device is arranged on the protective bar device in the region of the front of the vehicle.

[0022] According to an advantageous embodiment of the invention, the at least one charger and / or the at least one supply battery is arranged on the protective bar device in the region of an outer side of the vehicle.

[0023] With such an arrangement of the at least one battery-operated manual tool at the front of the vehicle and the at least one charger and / or the at least one supply battery on the outside of the vehicle, it is achieved that the at least one manual tool, the at least one charger and the at least one supply battery are arranged in the front area of ​​the mobile forestry machine in front of the bulkhead, so that the rear area of ​​the mobile forestry machine with the stake platform and the ramp shield are not impaired or disturbed in their function by the mounting of the at least one manual tool, the at least one charger and the at least one supply battery on the protective bar device.

[0024] The invention offers a number of advantages.

[0025] The mobile forestry machine according to the invention allows the use of standard battery-operated hand tools, such as chainsaws, brush cutters, pole pruners with standard interchangeable batteries, which can be charged with electrical energy on site in the forest by means of at least one charger and at least one supply battery carried on the mobile forestry machine as needed during work in the forest.

[0026] Further advantages and details of the invention are explained in more detail by way of example with reference to the embodiment shown in the schematic figures. Fig. 1 a perspective view of a mobile forestry machine according to the invention, Fig. 2 the forestry machine in a representation according to the Fig. 1 without supply battery, Fig. 3 the forestry machine in accordance with Fig. 3 in a perspective view from the other side of the vehicle, Fig. 4 the forestry machine in a representation according to the Fig. 2 without battery-operated hand tools, Fig. 5 a representation of the forestry machine with the control cabinet open, Fig. 6 the receiving device designed as a support frame of the forestry machine according to the invention in a perspective view, Fig. 7 the supporting frame of the Fig. 6 with mounted storage tray and Fig. 8 the day frame of the Fig. 7 with mounted control cabinets.

[0027] In the Fig. 1 to 4, a mobile forestry machine 1 according to the invention is shown in a perspective view.

[0028] The mobile forestry machine 1 comprises a chassis 2 formed by two crawler tracks 2a, 2b, each driven, for example, by a hydraulic drive motor.

[0029] The mobile forestry machine 1 has a drive part 3, which is arranged at the front in the vehicle's longitudinal direction L and is equipped with a drive unit. The drive unit can, for example, comprise an internal combustion engine designed as a diesel engine, which drives a working hydraulic system of the forestry machine.

[0030] The drive part 3 is further provided with a cable winch, from which a cable ejector 4 is inserted into the Fig. 1 to 4.

[0031] In the forestry machine 1 according to the invention, the drive part 3, which is provided with the drive unit and the cable winch, is arranged at the front as seen in the vehicle's longitudinal direction L.

[0032] Adjacent to the drive part 3 is a vertical bulkhead 5, which runs in the vehicle transverse direction Q. Adjacent to the bulkhead 5 is a stanchion platform 6 with a transport platform 6a and a stanchion 6b, and at the rear of the vehicle is an adjustable ramp plate 8, which is adjustable about a horizontal vehicle transverse axis.

[0033] The forestry machine 1 does not have a driver's workplace for an operator and can be operated by an operator using a remote control not shown in detail.

[0034] In the forestry machine 1 according to the invention, the front half of the vehicle, which extends from the front of the vehicle to the bulkhead 5, forms the drive part, which is provided with the drive unit and the cable winch.

[0035] The rear half of the vehicle forms a working part, which includes the stanchion platform 6 arranged behind the bulkhead and the adjustable ramp plate 8.

[0036] The drive part 3 is surrounded and protected by a protective bar device 10. In the illustrated embodiment, the protective bar device 10 is formed by tubes that run horizontally along the front and sides of the vehicle on the drive part 3.

[0037] The forestry machine 1 is designed as a carrier for one or more of the following components: • at least one charger 15 which is designed to charge a battery 16 of a battery-operated hand-held device 17, • at least one supply battery 20 which is designed to supply the charger 15 with electrical energy during charging of the battery 16.

[0038] In the illustrated embodiment, the protective bar device 10 is designed as a carrier for one or more of the following components: • at least one battery-operated hand tool 17, which is operated by the battery 16, • the at least one charger 15, which is designed to charge the battery 16 of the battery-operated hand tool 17, • the at least one supply battery 20, which is designed to supply the charger 15 with electrical energy during charging of the battery 16.

[0039] In the illustrated embodiment, the protective bar device 10 is provided with a Fig. 6 to 8, to which at least one of the components, the battery-operated handheld tool 17 and / or the charger 15 and / or the supply battery 20, is mounted. In the illustrated embodiment, the at least one battery-operated handheld tool 17 and / or the at least one charger 15 can be releasably attached to the receiving device 25.

[0040] In the illustrated embodiment, the receiving device 25 is designed as a support frame 26, which is formed from profile elements and can be releasably fastened to the protective bar device 10 by means of at least one hook 27 and a tension lock 28. In the illustrated embodiment, the support frame 26 is provided with hooks 27, with which the support frame 26 can be suspended from a tube 10a of the protective bar device 10, which tube runs along the front of the vehicle in the horizontal transverse direction Q of the vehicle. The tension lock 28 can be used to clamp the support frame 26 suspended from the tube 10a to the protective bar device 10.

[0041] A storage tray 30 can be detachably attached to the support frame 26 to hold the at least one battery-operated handheld tool 17. In the illustrated embodiment, the storage tray 30 can be hooked onto hook receptacles 32 of the support frame 26 by means of hooks 31 and clamped to the support frame 26 by means of a tension lock (not shown in detail). One or more battery-operated handheld tools 17 can be placed in the storage tray 30. In the illustrated embodiment, the battery-operated handheld tools 17 are designed as handled tools, with the handheld tools 17 being placed in the storage tray 30 with a motor-battery part and the handles of the handheld tools 17 pointing vertically upwards. To hold the handles of the handheld tools 17, holders 33 pointing vertically upwards are arranged on the support frame 26.The brackets 33 can be arranged on the support frame 26 so as to be adjustable in the vertical direction and in the direction of the vehicle transverse direction Q in order to adapt the brackets to the corresponding hand tools 17 to be carried.

[0042] At least one control cabinet 35, 36, in which the at least one charging device 15 is arranged, is detachably fastened to the support frame 26. In the illustrated embodiment, the control cabinet 35 can be hooked by means of a hook 37 onto a horizontally extending profile element 26a of the support frame 26, which runs along the right-hand outer side of the drive part 3 in the horizontal vehicle longitudinal direction L, and can be clamped to the support frame 26 by means of a tension lock 38. In the illustrated embodiment, the control cabinet 36 can be hooked in a similar manner by means of a hook onto a horizontally extending profile element 26b of the support frame 26, which runs along the left-hand outer side of the drive part 3 in the horizontal vehicle longitudinal direction L, and can be clamped to the support frame 26 by means of a tension lock 38.

[0043] In the control cabinet 35, 36 - as in the Fig.5 - one or more charging devices 15 are arranged away from the weather, with which the batteries of the hand tools 17 can be charged.

[0044] At least one supply battery 20 is detachably attached to the protective bar device 10. In the illustrated embodiment, the supply battery 20 is provided with at least one hook 40, with which the supply battery 20 can be suspended from a tube 10b of the protective bar device 10, which runs on the right-hand outer side of the vehicle of the drive part 3 in the horizontal vehicle longitudinal direction L. With a tension lock (not shown in detail), the supply battery 20 suspended from the tube 10b can be clamped to the protective bar device 10. In a similar manner, a further supply battery (not shown in detail) can be suspended with at least one hook from a tube 10c of the protective bar device 10, which runs on the left-hand outer side of the vehicle of the drive part 3 in the horizontal vehicle longitudinal direction L.The supply battery suspended on the tube 10c can be clamped to the protective bracket device 10 using a clamping fastener (not shown in detail).

[0045] The supply battery 20 or the additional supply battery is connected via a power cable to the chargers 15 arranged in the control cabinet 35 or 36 for their power supply.

[0046] In the forestry machine 1 according to the invention, the storage tray 30 and the holders 35 are arranged in the region of the vehicle front on the protective bar device 10, so that the at least one battery-operated manual working device 17 is carried in the region of the vehicle front of the forestry machine.

[0047] In the forestry machine 1 according to the invention, the switch cabinet 35 and the supply battery 20, which supplies the chargers 15 arranged in the switch cabinet 35 with electrical energy, are arranged on the right-hand outer side of the forestry machine 1 in the area of ​​the drive part 3. Similarly, the switch cabinet 36 and another supply battery 20 (not shown in detail) are arranged on the left-hand outer side of the forestry machine 1 in the area of ​​the drive part 3, which supplies the chargers 15 arranged in the switch cabinet 36 with electrical energy.

[0048] The supply batteries 20 and control cabinets 35, 36, which can be detachably attached to the protective bar device 10 and in which the charging devices 15 for the batteries of the hand tools 17 are arranged, represent "packing backpacks" which can be carried by the mobile forestry machine 1 in the forest to the corresponding place of use and with which the batteries 16 of the hand tools 17 carried along can be charged on site in the forest during work.

[0049] Due to the arrangement of the supply batteries 20 and control cabinets 35, 36 in the area of ​​the drive part 3, the functionality of the cable winch, the stake platform 6 and the ramp shield 8 is fully maintained and is not impaired by the supply batteries 20 and control cabinets 35, 36.

Claims

[1] Mobile forestry machine (1) which is provided with a chassis (2) and a drive unit, wherein the forestry machine (1) does not have a driver's workplace for an operator, wherein the forestry machine (1) comprises a drive part (3) provided with a drive unit, which is protected by a protective bar device (10), characterized by that the forestry machine (1) is designed as a carrier for one or more of the following components: • at least one charger (15) designed to charge a battery (16) of a battery-operated hand-held device (17), • at least one supply battery (20) which is designed to supply the charger (15) with electrical energy during charging of the battery (16). [2] Mobile forestry machine (1) according to claim 1, characterized by that the protective bar device (10) is designed as a support for one or more of the following components: • at least one battery-operated hand-held tool (17) powered by the rechargeable battery (16), • the at least one charger (15) which is designed to charge the battery (16) of the battery-operated hand-held device (17), • the at least one supply battery (20) which is designed to supply the charger (15) with electrical energy during charging of the battery (16). [3] Mobile forestry machine (1) according to claim 1 or 2, characterized by that a receiving device (25) can be detachably fastened to the protective bar device (10), on which at least one of the components is held, in particular the at least one battery-operated hand-held tool (17) and / or the at least one charging device (15). [4] Mobile forestry machine (1) according to claim 3, characterized bythat the receiving device (25) is designed as a supporting frame (26) which can be releasably fastened to the protective bar device (10) by means of at least one hook (27) and / or a tension lock (28). [5] Mobile forestry machine (1) according to claim 4, characterized by that a storage tray (30) can be detachably fastened to the support frame (26), in particular by means of at least one hook (31) and / or a tension lock. [6] Mobile forestry machine (1) according to claim 4 or 5, characterized by that at least one switch cabinet (35; 36), in which the at least one charging device (15) is arranged, can be detachably fastened to the support frame (26), in particular by means of at least one hook (37) and / or a clamping lock (38). [7] Mobile forestry machine (1) according to one of claims 1 to 6, characterized bythat the at least one supply battery (20) can be detachably fastened to the protective bar device (10), in particular by means of at least one hook (40) and / or a tension lock. [8] Mobile forestry machine (1) according to one of claims 1 to 7, characterized by that, viewed in the vehicle's longitudinal direction (L), the drive part (3) with a cable winch and the protective bar device (10) is arranged at the front, a vertical bulkhead (5) which runs in the vehicle's transverse direction (Q) is arranged adjacent to the drive part (3), a stanchion platform (6) is arranged adjacent to the bulkhead (5), and an adjustable ramp sign (8) is arranged at the rear of the vehicle. [9] Mobile forestry machine (1) according to one of claims 1 to 8, characterized by that the at least one battery-operated hand-held tool (17) is arranged on the protective bar device (10) in the region of the vehicle front. [10] Mobile forestry machine (1) according to one of claims 1 to 9, characterized by that the at least one charger (15) and / or the at least one supply battery (20) is arranged on the protective bar device (10) in the region of an outer side of the vehicle.