User-portable machining system

Abstract

User-portable processing system (1) which includes: - a battery pack (2) for storing electrical energy, - an electric chainsaw (3) which is designed separately from the battery pack (2) and which can be operated by means of electrical energy from the battery pack (2), - an electrical conduit (4) for an electrical connection between the chainsaw (3) and the battery pack (2), - a locking element (5) for a power-transmitting connection between the chainsaw (3) and the battery pack (2), and - a casing (6) for enclosing at least one section (7) of the conductor assembly (4) and at least one section (8) of the safety element (5), - wherein the casing (6) has an intermediate wall (9) for separating the enclosed section (7) of the conductor assembly (4) from the enclosed section (8) of the safety element (5), - wherein a first chamber (10) of the shell (6) is at least partially bounded by a first outer wall (14) of the shell (6) and a second chamber (11) of the shell (6) is bounded by a second outer wall (15) of the shell (6), - wherein the casing (6) has at least one closure device (16), - wherein the locking device (16) is designed to allow the first and / or second outer wall (14, 15) to be reopened, so that the first chamber (10) and / or the second chamber (11) can be reopened transversely to the longitudinal direction (L) by means of the locking device (16).

Description

[0001] The invention relates to a user-portable machining system.

[0002] EP 3 023 201 A discloses a chainsaw arrangement comprising a chainsaw and a battery connected to a drive motor of the chainsaw via a power cable, wherein the chainsaw has an elastic safety element which is fixed to a housing of the chainsaw by means of a fastening means, and wherein a connection device is provided for connecting the safety element to the operator.

[0003] One object of the invention is to create a user-portable machining system which has improved properties.

[0004] This problem is solved by the subject matter of the independent patent claim. Preferred embodiments are the subject matter of the dependent patent claims.

[0005] A user-portable machining system according to the invention comprises a battery pack, in particular a replaceable one, for storing electrical energy. The machining system is portable by a user, particularly for work at height; that is, the user can carry the machining system while working at height. The machining system includes an electric chainsaw, which is separate from the battery pack and can be operated by means of electrical energy from the battery pack. The chainsaw, in particular, forms a hand-held and / or hand-guided machining tool of the machining system. Furthermore, the machining system includes an electrical connection device, which serves to electrically connect the chainsaw and the battery pack. The machining system also has a locking element, which serves to transmit force between the chainsaw and the battery pack.The functions of the electrical connection of the power-transmitting connection can therefore each be fulfilled by different and / or separate components of the processing system. The processing system also has a casing for enclosing at least one section of the conductor assembly and at least one section of the locking element. The casing includes a partition wall for separating the enclosed section of the conductor assembly from the enclosed section of the locking element. The partition wall can, in particular, run directly between the enclosed section of the conductor assembly and the enclosed section of the locking element.

[0006] In this way, particularly through separation by means of the partition, the adhesion and / or rubbing of the wiring and the safety element against each other can be reduced or even completely avoided. This can be particularly advantageous if the chainsaw of the user-friendly power tool is dropped by the user, especially accidentally or intentionally during a drop test. In this case, it is desirable that the chainsaw and the battery pack move away from the user together without interrupting the electrical connection or the power transmission connection. By reducing or even avoiding the adhesion and / or rubbing of the safety element and the wiring, an interruption of the electrical connection at the battery pack side can be advantageously prevented.

[0007] The electric battery pack can be an electric battery pack, especially one with multiple electric battery cells.

[0008] The safety element can be referred to synonymously as a "strop". Alternatively or additionally, the safety element can form and / or feature a safety strap.

[0009] The safety element can be designed to be textile and / or cut-resistant and / or electrically insulating.

[0010] Advantageously, the securing element may be made of or consist of polyester. It is understood that other fibers, in particular synthetic fibers, and / or combinations of different fibers may also be suitable for the securing element. The securing element may, at least in some areas, comprise a woven and / or braided and / or knitted fabric, in particular with or made of fibrous material. The securing element may, in particular, be designed similarly to a lashing strap.

[0011] The casing is not designed to transmit power between the chainsaw and the battery pack. The casing may be loosely movable along the covered section of the cable assembly and / or along the covered section of the safety element.

[0012] In one embodiment of the invention, the sheathed section of the conductor and the sheathed section of the locking element run essentially parallel to each other. Alternatively or additionally, the sheathed section of the conductor and the sheathed section of the locking element are essentially parallel to each other, in particular by means of the sheath. In particular, the conductor is not wound around the locking element.

[0013] In a further embodiment of the invention, the locking element is elastically designed. Alternatively or additionally, the locking element has a total locking element length, particularly a maximum length, that is less than the total length of the cable assembly. Under longitudinal tensile stress on the locking element and the cable assembly, the locking element can thus advantageously reach its total locking element length before the cable assembly is fully stretched to its total length.

[0014] In a further embodiment of the invention, the casing has a first chamber, in particular a channel-like chamber, for receiving the enclosed section of the conductor assembly. The casing also has a second chamber, in particular a channel-like chamber, for receiving the enclosed section of the locking element. A first wall side of the partition at least partially delimits the first chamber. A second wall side of the partition, opposite the first wall side, at least partially delimits the second chamber. In particular, the first chamber and the second chamber are separated from each other, and especially only, by means of the partition.

[0015] In a further embodiment of the invention, the first chamber and – alternatively or additionally – the second chamber extend longitudinally along a longitudinal direction of the shell. Alternatively or additionally, the first chamber and – alternatively or additionally – the second chamber are open at both ends along the longitudinal direction. The first chamber and / or the second chamber can be shaped like a tube.

[0016] Advantageously, the casing and the encased sections of the conductor assembly and the safety element are extended longitudinally, in particular along a common longitudinal direction, essentially parallel to each other.

[0017] According to the invention, the first chamber of the casing is at least partially bounded by a first outer wall of the casing, and the second chamber of the casing is at least partially bounded by a second outer wall of the casing. The casing has at least one closure device, in particular a zipper. The closure device is designed to allow the first outer wall to be reopened, so that the first chamber can be reopened transversely to its longitudinal direction by means of the closure device. Alternatively or additionally, the closure device can be designed to allow the second outer wall to be reopened, so that the second chamber can be reopened transversely to its longitudinal direction by means of the closure device.

[0018] The locking device is designed exclusively for the re-closable interruption of the first outer wall, so that only the first chamber can be reopened transversely to its longitudinal direction by means of the locking device. The second chamber can be permanently closed transversely to its longitudinal direction, and in particular, cannot be opened. Conversely, it is understood that the first chamber can be closed transversely to its longitudinal direction, and only the second chamber can be opened transversely to its longitudinal direction.

[0019] In a further embodiment of the invention, the casing, in particular the intermediate wall and / or at least one outer wall of the casing, comprises a textile and / or cut-resistant material. In this way, the enclosed section of the conductor assembly and / or the enclosed section of the locking element can be at least partially protected from direct external mechanical impacts. The material of the casing can correspond, at least in some areas, to the material of the locking element.

[0020] In a further embodiment of the invention, the processing system comprises a battery pouch, which is at least partially flexible and / or textile, for the replaceable storage of the battery pack, wherein the stored battery pack can be carried by a user by means of the battery pouch. The processing system includes an overload device designed to limit the force acting between the battery pouch and the user carrying the battery pouch. The overload device thus enables automatic separation of the processing system from the user.

[0021] The chainsaw can be expediently connected to the battery bag via the safety device. The battery pack can be connected to the safety device, and in particular exclusively, via the battery bag. Specifically, the clamping force can extend the safety device to its maximum total length before the automatic disconnection of the cutting system from the user occurs.

[0022] In a further embodiment of the invention, the overload device is designed to automatically interrupt the transmission of the holding force, particularly irreversibly, when the holding force exceeds a predetermined self-opening value of the overload device. This self-opening value is less than the minimum disconnection force required to disconnect an electrical connector of the processing system, wherein the connector releasably connects the electrical wiring and the battery pack to each other, and—alternatively or additionally—the electrical wiring and the chainsaw to each other. In this way, it can be ensured that the processing system moves away from the user when the chainsaw is dropped, without the electrical connector being disconnected.

[0023] Further advantages and features of the invention will become apparent from the claims and from the following description of a preferred embodiment of the invention, which is illustrated with reference to the drawing. In this context, identical reference numerals refer to identical, similar, or functionally equivalent components.

[0024] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or on their own, without leaving the scope of the present invention.

[0025] The only Fig. Figure 1 shows a roughly schematic top view of an embodiment of a user-portable machining system according to the invention.

[0026] A user-portable processing system 1 is designed to be worn by a user U. The processing system 1 is therefore designed in this case so that it can be worn by the user U.

[0027] The processing system 1 includes a battery pack 2 for storing electrical energy. The processing system 1 also includes an electric chainsaw 3, which is separate from the battery pack 2. The chainsaw 3 can be operated using electrical energy from the battery pack 2. For example, a rotating saw chain of the chainsaw 3 can be driven by electrical energy from the battery pack 2 to process a workpiece.

[0028] The processing system 1 has an electrical connection device 4 for electrically connecting the chainsaw 3 and the battery pack 2. In this case, the chainsaw 3 and the battery pack 2 are electrically connected to each other by means of the electrical connection device 4.

[0029] The processing system 1 has a locking element 5 for a force-transmitting connection between the chainsaw 3 and the battery pack 2. In this case, the chainsaw 3 and the battery pack 2 are connected to each other by means of the locking element 5 in a force-transmitting manner.

[0030] The locking element 5 is, for example, elastically designed. Alternatively or additionally, the locking element 5 – as in the present case – has a total locking element length, in particular a maximum length, that is less than the total length of the conductor assembly 4.

[0031] The processing system 1 has a casing 6 for enclosing at least one section 7 of the conductor assembly 4 and at least one section 8 of the locking element 5. The casing 6 has a partition 9 for separating the enclosed section 7 of the conductor assembly 4 from the enclosed section 8 of the locking element 5.

[0032] In this case, the sheathed section 7 of the conductor assembly 4 and the sheathed section 8 of the safety element 5 run essentially parallel to each other. The sheathed sections 7 and 8 are enclosed by the sheath 6, which is essentially parallel to each other. The sheath 6 and the sheathed sections 7 and 8 can extend longitudinally along a common longitudinal direction L, essentially parallel to each other.

[0033] The casing 6, for example, has a first chamber 10 for receiving the enclosed section 7 of the conductor assembly 4. The first chamber 10 can be channel-shaped. In this case, the section 7 of the conductor assembly 4 is received in the first chamber 10, which is currently open transversely to the longitudinal direction L and can be reclosed. The casing 6 also has a second chamber 11 for receiving the enclosed section 8 of the locking element 5. The second chamber 11 can also be channel-shaped. In this case, the enclosed section 8 of the locking element 5 is received in the second chamber 11.

[0034] The partition wall 9 has a first wall side 12 and a second wall side 13 opposite the first wall side 12. The first chamber 10 is at least partially bounded by the first wall side 12 of the partition wall 9. The second chamber 11 is at least partially bounded by the second wall side 13. The first chamber 10 and the second chamber 11 can only be separated from each other transversely to the longitudinal direction L by the partition wall 9.

[0035] The shell 6, for example, has a first outer wall 14 and a second outer wall 15. The first chamber 10 is, in this case, at least partially bounded by the first outer wall 14 and the second chamber 11 by the second outer wall 15, in particular each facing away from the partition wall 9.

[0036] The casing 6 has, for example, at least one, in this case exactly one, closure device 16. The closure device 16 may have a zipper 17. In this case, the closure device 16 is designed to reopen the first outer wall 14, so that the first chamber 10 can be reopened transversely to the longitudinal direction L by means of the closure device 16. In this case, the first chamber 10 is reopened by means of the closure device 16.

[0037] The locking device 16 can alternatively or additionally be configured to allow the second outer wall 15 to be reopened, so that the second chamber 11 can be reopened transversely to the longitudinal direction L by means of the locking device 16. In the present case, however, the locking device 16 is configured exclusively to reopen the first outer wall 14, so that only the first chamber 10 can be reopened transversely to the longitudinal direction L by means of the locking device 16, whereas the second chamber 11 is permanently closed transversely to the longitudinal direction L and cannot be opened.

[0038] The first chamber 10, for example, extends longitudinally along the longitudinal direction L of the shell 6. Alternatively or additionally, the second chamber 11 – as in the present case – extends longitudinally along the longitudinal direction L of the shell 6.

[0039] The first chamber 10 can be open on both sides along its longitudinal direction L. Alternatively or additionally, the second chamber 11 can be open on both sides along its longitudinal direction L. In the present case, both the first and second chambers 10, 11 are open on both sides along their longitudinal direction L, and in particular, each is permanently open.

[0040] The shell 6, in particular its partition wall 9, and – alternatively or additionally – at least one of its outer walls 14, comprises, for example, a textile material and – alternatively or additionally – a cut-resistant material. The material may be polyester.

[0041] For example, the processing system 1 has a battery pocket 18. The battery pocket 18 can serve to interchangeably hold the battery pack 2. The battery pack 2, held in place, can be carried by the user U using the battery pocket 18. The battery pocket 18 can be attached to the user U for carrying, for example, by means of a carabiner. The processing system 1 has an overload device 19, which is designed to limit a catching force acting between the battery pocket 18 and the user U carrying the battery pocket 18. The catching force can, in particular, act along a direction of gravity. The chainsaw 3 can be connected to the battery pocket 18 by means of the securing element 5. The battery pack 2 can, in particular, only be connected to the securing element 5 by means of the battery pocket 18.The force-transmitting connection is specifically designed only for the transmission of tensile forces.

[0042] The overload device 19 is designed, for example, to automatically interrupt the transmission of the holding force if the holding force exceeds a predetermined self-opening value of the overload device 19. For example, the overload device 19 is designed to automatically and irreversibly interrupt the holding force. In this case, the self-opening value is less than a minimum disconnection force required to disconnect an electrical connector 20 of the processing system 1. For example, the electrical wiring device 4 and the battery pack 2 are detachably electrically connected to each other via the connector 20. Alternatively or additionally, the chainsaw 3 and the electrical wiring device 4 can be detachably electrically connected to each other via the connector 20.

[0043] The overload device 19 can be ring-shaped. The overload device 19 can be designed to interrupt the transmission of the holding force without deformation. Alternatively or additionally, the overload element 19 can have a predetermined breaking point to interrupt the transmission of the holding force.

Claims

[1] User-portable processing system (1) which features: - a battery pack (2) for storing electrical energy, - an electric chainsaw (3) which is designed separately from the battery pack (2) and which can be operated by means of electrical energy from the battery pack (2), - an electrical conduit (4) for an electrical connection between the chainsaw (3) and the battery pack (2), - a locking element (5) for a power-transmitting connection between the chainsaw (3) and the battery pack (2), and - a casing (6) for enclosing at least one section (7) of the conductor assembly (4) and at least one section (8) of the safety element (5), - wherein the casing (6) has an intermediate wall (9) for separating the enclosed section (7) of the conductor assembly (4) from the enclosed section (8) of the safety element (5), - wherein a first chamber (10) of the shell (6) is at least partially bounded by a first outer wall (14) of the shell (6) and a second chamber (11) of the shell (6) is bounded by a second outer wall (15) of the shell (6), - wherein the casing (6) has at least one closure device (16), - wherein the locking device (16) is designed to allow the first and / or second outer wall (14, 15) to be reopened, so that the first chamber (10) and / or the second chamber (11) can be reopened transversely to the longitudinal direction (L) by means of the locking device (16). [2] User-portable processing system (1) according to the preceding claim, - wherein the sheathed section (7) of the conductor assembly (4) and the sheathed section (8) of the safety element (5) are substantially parallel to each other and / or sheathed. [3] User-portable processing system (1) according to any one of the preceding claims, - wherein the locking element (5) is elastically designed and / or has a, in particular maximum, total locking element length that is less than a total conductor length of the conductor assembly (4). [4] User-portable processing system (1) according to any one of the preceding claims, - wherein the casing (6) has a first, in particular channel-like, chamber (10) for receiving the encased section (7) of the conduit assembly (4), - wherein the casing (6) has a second, in particular channel-like, chamber (11) for receiving the encased section (8) of the locking element (5), - wherein a first wall side (12) of the partition wall (9) at least partially defines the first chamber (10) and a second wall side (13) of the partition wall (9) opposite the first wall side (12) defines the second chamber (11). [5] User-portable processing system (1) according to the preceding claim, - wherein the first and / or the second chamber (10, 11) is longitudinally extended along a longitudinal extension direction (L) of the shell (6); and / or - wherein the first and / or the second chamber (10, 11) is open on both sides along the longitudinal extension direction (L). [6] User-portable processing system (1) according to any one of the preceding claims, - wherein the closure device (16) has a zipper (17). [7] User-portable processing system (1) according to any one of the preceding claims, - wherein the shell (6), in particular the partition wall (9) and / or at least one outer wall (14, 15) of the shell (6), comprises a textile and / or cut-resistant material. [8] User-portable processing system (1) according to any one of the preceding claims, - wherein the processing system (1) has a battery pocket (18) for interchangeably receiving the battery pack (2), wherein the received battery pack (2) can be carried by a user (U) by means of the battery pocket (18), - wherein the processing system (1) has an overload device (19) designed to limit a catching force acting between the battery pocket (18) and the user (U) carrying the battery pocket (18). [9] User-portable processing system (1) according to the preceding claim, - wherein the overload device (19) is designed to automatically interrupt the transmission of the holding force, in particular irreversibly, when the holding force exceeds a predetermined self-opening value of the overload device (19), - wherein the self-opening value is less than a minimum unplugging force for disconnecting an electrical plug connection (20) of the processing system (1), wherein the plug connection (20) releasably connects the electrical wiring device (4) and the battery pack (2) to each other and / or the electrical wiring device (4) and the chainsaw (3) to each other.

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