Lawn trimmer or brush cutter

Abstract

The utility model relates to a lawn trimmer (10) or a brush cutter, which is provided with an output device shell unit, in particular to a motor shell unit (18) and a protection unit (150), the protection unit comprises a wire rod bow (160), and the wire rod bow can be swingably shifted from a stop position (152) to a use position (154). According to the invention, the output housing unit or the motor housing unit (18) is provided with a latching recess (182) for latching the wire bow (160) in the use position (154) in the region of the output housing split joint or the motor housing split joint (178), and / or the output device housing unit or the motor housing unit (18) has a swing stop unit (200) for the wire bow (160), which swing stop unit protrudes radially with respect to the output shaft or motor axis (21), comprising two swing stop elements (204), which swing stop unit is designed as an angular or L-shaped swing guide element and / or swing stop element (204), preferably a pivot guide surface and / or a pivot stop surface (206, 208).

Description

Technical Field

[0001] The utility model relates to a lawn mower or a brush cutter with a wire bow protection unit. Background Art

[0002] Such lawn mowers or brush cutters are widespread and are in particular provided for mowing or cutting lawns, grass or bushes. In order to avoid unintentional damage to objects, in particular trees, fences or the like, or to avoid damage to the lawn mower or brush cutter tool, in particular when guiding the lawn mower or brush cutter along stones or walls, protective units are generally known, in particular in the form of a wire bow that can be shifted from an inactive position into an active position. Utility Model Content

[0003] The utility model relates to a lawn mower or a brush cutter. Advantageous extensions are obtained from further solutions.

[0004] Therefore, a lawn mower or brush cutter is provided, which has a wire bow protection unit that can be operated comfortably. A high functional integration or component integration can also be achieved. Manufacturing costs and / or component costs can be saved. The robustness of the protection unit or protection device can be improved.

[0005] A "protection unit" is to be understood in particular as a unit which is designed to protect an object (e.g. a tree, a fence, etc.) from the tool of a handheld power tool or a lawn mower or a brush cutter, or to protect the tool from an object (e.g. a stone, a wall, etc.). The protection unit is in particular designed to keep an object at a distance from the tool in at least one use position (in particular a horizontal cutting position, a cutting parallel to the ground or a cutting plane). The protection unit preferably establishes a minimum distance between the object and the tool in particular with respect to the front direction of the output unit in particular in at least one use position of the lawn mower or the brush cutter (in particular a horizontal cutting position). The front direction is in particular in a plane perpendicular to the swing axis of the protection unit or the wire bow. The front direction is in particular defined by the intersection of the longitudinal axes of the guide rods or guide tubes of the handheld power tool projected onto the tool cutting plane. The front direction is in particular orthogonal or perpendicular to the rotation axis of the tool or the output unit and opposite to the side of the output unit on which the guide rod is arranged.

[0006] Therefore, the utility model relates to a lawn mower or a brush cutter, which has an output device housing unit, in particular a motor housing unit, and a protection unit, the protection unit including a wire bow, the wire bow being configured to be able to swingably shift from a deactivated position to a use position. It is proposed that the output device housing unit or the motor housing unit is configured in the region of the output device housing split joint or the motor housing split joint to lock the wire bow in the use position. The wire bow can be elastically deformed. The wire bow is elastically preloaded, in particular, by assembly. The wire bow can be locked into the locking recess based on displacement, in particular swinging. The wire bow can be displaced as far as possible without resistance by displacement, in particular after exceeding a threshold force for moving the wire bow out of the locking recess.

[0007] It is proposed that the output device housing unit or the motor housing unit is designed as a pot housing with a cover and / or that the latching recess is introduced mirror-symmetrically with respect to the output device housing part plane or the motor housing part plane, in particular the motor housing part joint plane, in particular into the pot housing and the cover. This makes it possible to achieve a high degree of component integration.

[0008] It is proposed that the latching recess has a longitudinal orientation that is tangential to the output unit axis or the motor axis of the output device housing unit or the motor housing unit, and is particularly configured as a groove-shaped recess preferably in the side surface of the output device housing unit or the motor housing unit. It is proposed that the latching recess, in particular the latching groove, has a longitudinal extension that is substantially parallel to the cutting plane. It is proposed that the latching recess, in particular, has a main orientation or longitudinal orientation that is parallel to the split plane or the split joint plane of the output device housing. In particular, the longitudinal orientation of the latching recess is orthogonal to the swing axis orientation of the wire bow. In particular, it is possible to reliably latch the wire bow to the output unit, in particular the output device housing unit.

[0009] It is proposed that the lawn mower or brush cutter has two latching recesses that are symmetrically opposite and preferably extend parallel to each other, preferably for latching and receiving two bow legs of the wire bow that are oriented substantially parallel to each other, wherein the latching recess is particularly configured as a latching groove, preferably two latching grooves that are symmetrically opposite and oriented substantially parallel to each other. This makes it possible to better hold the protective device or the wire bow on the output device housing unit.

[0010] It is proposed that the output device housing unit or the motor housing unit has a swing stop unit for the wire bow protruding radially from it relative to the output shaft or the motor axis, the swing stop unit particularly includes two swing stop elements, the swing stop unit is particularly configured as an angular or L-shaped, particularly right-angled swing guide element and / or swing stop element, preferably a swing guide surface and / or a swing stop surface. The swing stop element extends transversely to, particularly perpendicular to, the swing direction. The swing stop element serves as an obstacle for the swing of the wire bow that is intended to be carried out by the swing stop element. In this way, in particular, an intuitive displacement of the wire bow can be achieved. The user-friendliness can be improved.

[0011] It is proposed that at least a part of the swing stop unit, in particular the free end of the swing stop element, protrudes axially from the split plane of the output device housing unit or the motor housing unit, in particular protrudes at least half the wire bow diameter width. The displacement of the wire bow can thus be guided in particular in the swing direction. The opening of the wire bow can be avoided, in particular causing an unintentional crossing of the stop element or the stop surface. The wire bow can be avoided from moving out, in particular under loads such as from the front direction or by colliding with an object or the like. The operator-friendliness can be improved. Intuitive use can be achieved.

[0012] It is proposed that the pivot stop unit is particularly configured solely on the pot housing part of the output housing unit or the motor housing unit, the pivot stop unit particularly extending axially parallel to the cover housing side wall of the output housing unit or the motor housing unit, the pivot stop unit preferably having a spacing from the cover housing side wall of the output housing unit or the motor housing unit which at least corresponds to or substantially corresponds to the wire bow diameter. “Substantially” is to be understood in particular as meaning that the deviation from a predetermined value (in this case, a spacing from the cover housing side wall greater than the wire bow diameter) is in particular less than 50%, preferably less than 25% and particularly preferably less than 15% of the predetermined value. Preferably, this can in particular achieve good guidance of the wire bow for introduction into the latching recess or for removal from the latching recess.

[0013] It is proposed that the wire bow has two wire ends, which are bent at right angles and are preferably free, and the wire ends are provided as sliding and swinging bearings, in particular openable sliding and swinging bearings, for a protective unit configured as a wire bow. A wire bow that is open on one side or a wire bow with free ends can be preloaded or preloaded in a simple manner, in particular by being mounted on an output unit housing. The wire bow can thus be completely removed or replaced in a simple manner. It is not necessary to provide a separate rolling bearing or the like. Generally, fewer components are required to realize the function.

[0014] It is proposed that in the split plane of the output device housing unit or the motor housing unit, in particular in the dividing plane between the tank housing part and the cover housing part, a sliding swivel bearing opening for receiving the end of the wire bow is formed, in particular two swivel sliding bearing openings that are opposite along the swivel axis, in particular mirror-symmetrically opposite. Preferably, the reception can be achieved in a simple manner. In this way, the wire bow is oriented at least in sections parallel to the split plane or the cutting plane. This can improve intuitive operation.

[0015] It is proposed that the output device housing unit or the motor housing unit forms a substantially U-shaped or one-side open and three-side surrounded guide receiving portion for the wire bow, especially when the wire bow is transformed or pivoted into the use position, by means of the output device housing outer wall or the motor housing outer wall (especially the cover housing side wall), and furthermore by means of the stop surface and the guide surface. This makes it possible to achieve a very reliable transformation and / or receiving of the wire bow into the use position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Further advantages are derived from the following description of the drawings. An embodiment of the utility model is shown in the drawings. The drawings, the description and the claims contain multiple combined features. A person skilled in the art will also study these features individually and combine them into meaningful other combinations.

[0017] In the attached figure:

[0018] Figure 1 A schematic diagram shows a lawn mower or brush cutter according to the invention having at least one protective unit according to the invention,

[0019] Figure 2 A schematic diagram shows a detail of an output device housing unit or a motor housing unit having a protective unit in a use position and, as shown in dashed lines, in a rest position,

[0020] Figure 3 A further detail of the take-off device housing unit or motor housing unit is shown in a side view with the wire bow in the use position,

[0021] Figure 4 A front view of a motor housing unit without a wireless bow is shown, in particular for a closer look at the pivot guide element and / or the pivot stop element. DETAILED DESCRIPTION

[0022] The accompanying drawings show a handheld power tool. The handheld power tool is configured as a garden handheld power tool. The handheld power tool is electrically driven. The handheld power tool is battery-operated or rechargeable. The handheld power tool is configured as a lawn mower 10 or a brush cutter (especially depending on the tool used). The handheld power tool has an output unit 14 in addition to a housing unit 12. The housing unit 12 and the output unit 14 are connected to each other by a guide rod 16 or a guide tube. The housing unit and the output unit are spaced apart from each other by the guide rod 16. A handle 40 is arranged on the housing unit 12 to hold and / or guide the handheld power tool. A battery pack interface 30 is also arranged on the housing unit to supply energy to the handheld power tool or the lawn mower or the brush cutter or the motor 20. On the housing unit 12, especially in the area of ​​the handle 40, a device for at least turning on and off the handheld power tool, especially a switch unit 42, is provided. The switch unit 42 especially includes a release switch and an operating switch. An additional handle unit 17 is arranged on the guide rod 16. The additional handle unit can be displaced and fastened, in particular longitudinally displaceably, on the guide rod 16 .

[0023] The output unit 14 comprises a motor 20 arranged inside a motor housing unit 18. The motor 20 is in particular designed as an EC motor. An output shaft (not shown here) of the motor 20 or of the output unit 14 receives a tool. The tool is hereby provided as an example to receive a trimming line spool 22 for receiving a trimming line 25, in particular, the trimming line spool automatically re-extends the trimming line when worn - as is generally known. The trimming line spool 22 is received on the output unit 14 rotatably around an axis of rotation 23 of the output unit 14 or the axis of the output shaft, in particular around the axis of the motor. The trimming line spool 22 has one or two openings 24 in the side wall, through which a trimming line 25, not always shown in the drawings, protrudes. The trimming line 25 is provided in a known manner when rotating for trimming or cutting lawns or at least plants. Fixed-length trimming lines can also be positioned on the output unit 14 in principle by means of corresponding receiving parts. Instead of the trimming wire 25, a cutting knife (not shown here), for example with two, three or more blades, or a cutting disc with saw teeth or with cutting blades extending from the cutting disc and sometimes rotatably supported relative to the cutting disc, can also be applied to the output unit 14 in a known manner, in particular via an adapter plate or the like. Such (gardening) hand-held power tools are generally referred to as brush cutters, as is known to those skilled in the art. In contrast to a trimmer, the cutting element typically does not yield, or at least not as much, and is therefore also more often provided for cutting bushes or the like.

[0024] The housing unit 12 arranged on the end of the guide rod 16 or the guide tube opposite to the output unit 14 is particularly composed of two housing shells. The housing shells are joined in a plane formed by the output shaft axis and the guide tube axis. An electric cable and / or a control-regulation cable or a sensor cable or similar cable, not shown here, extends from the housing unit 12 through the guide rod 16, at least for supplying electric energy to the motor 20. Alternatively, the drive unit or the motor can also be arranged in the housing unit in principle, and the output unit can be driven by a rotating rod or the like, sometimes also telescopically or pluggably or extendably in another way, for example in combination with a transmission or the like. This solution is already known to those skilled in the art.

[0025] Furthermore, a cutting protection device 26 is arranged on the guide rod 16 and / or the output unit 14. The cutting protection device 26 is arranged in a known manner radially and at an angle in the circumferential direction (such as, for example, by Figure 3 The cutting protection device 26 is a cutting protection device that is arranged around the tool or the trimming or cutting line 25 or the cutting blade (as can be seen). The cutting protection device protrudes beyond the cutting plane 28 in which the trimming or cutting tool rotates, and in particular protrudes axially in the direction of the rotation axis 23 or orthogonally to the cutting plane 28, in particular orthogonally on both sides of the cutting plane 28. The rotation path of the trimming line 25 is at least partially covered by the cutting protection device 26, or also called the cutting protection cap, in this case by at least 90°, in particular by at least 45° on both sides of the guide rod 16 or on both sides of the plane 187 spanned by the guide rod axis and the output shaft axis. The cutting protection device 26 covers the trimming or cutting line 25 symmetrically on both sides of the guide rod 16. The cutting protection device 26 prevents cut or ejected objects from being ejected in a known manner in the direction of the user or the user or in the direction of the housing unit 12.

[0026] The cutting protection device 26 exposes the rotation path of the cutting or trimming line 25 in the area of ​​the working field of the cutting or trimming line 25 on its side facing away from the operating end or the housing unit 12. In order to avoid unintentional damage to objects, in particular certain plants such as trees, bushes, but also fences, and / or to avoid damage to the tool, for example by fences or stones, a known protection unit 150, in particular a plant protection unit, in particular a wire bow unit, is provided. The protection unit is spaced apart.

[0027] The protection unit 150 can be moved, for example, manually into the deactivated position 152 (see Figure 2In the inactive position 152, the protection unit 150 is fixed to a latching device 156 arranged on the guide rod 16. In the use position, the protection unit is fixed by a latching device 158 received on the output unit 14 or the motor housing unit 18. As a result, the protection unit 150 spaces the object to be protected so that the tool does not come into direct contact with the object. As a result, the object to be protected only comes into contact with the protection unit 150, but is not damaged by the tool. That is, the spacing of the rotation trajectory of the cutting line or trimming line with respect to the rotation axis 23 is smaller than that of the protection unit 150.

[0028] The protection unit 150 comprises at least one wire bow 160. The protection unit 150 is designed to be able to be displaced in a swinging manner. The protection unit can be displaced about a swing axis 166, which is oriented orthogonally to a plane 187 spanned by the output shaft axis 23 and the guide rod axis 62. The protection unit 150 is not provided for twisting around the output shaft axis 23 in the circumferential direction.

[0029] The wire bow 160 has a shape which is provided for swinging reception, in particular by means of an output device housing unit or a motor housing unit 18. The wire bow has a mirror-symmetrical basic shape. The two legs of the wire bow 160 extend mirror-symmetrically to one another, or mirror-symmetrically to one another about a mirror-symmetrical plane 188, with which the bow bridge 162 intersects centrally. The mirror-symmetrical plane 188 coincides with the plane 187. The wire bow 160 has a triangular basic shape which is open on one side. For this purpose, the legs transition into unconnected sections which extend substantially parallel to one another, as, for example, are formed by Figure 2 As can be seen. In other words, the wire bow 160 has a bow bridge 162 and isosceles bow legs 164, 165, which are bent / bent at least twice in opposite directions, so that the bow legs only extend toward each other starting from the bow bridge and the first bend / bend and continue to extend substantially parallel to each other after the second bend / bend. The bend / bend has a large bending radius. The bow bridge is convexly curved with respect to the bow legs 164, 165, i.e. away from the bow legs 164, 165. The short end sections of the open or free bow legs 164, 165 extending substantially in parallel are bent, in particular, with a small bending radius. The end sections face each other. The end sections are oriented along a common straight line. This straight line also forms the swing axis 166 of the wire bow 160.

[0030] Alternatively stated, the wire bow 160 has a slightly curved bow bridge 162, i.e., a particularly outwardly arched or protruding bow bridge 162, at the front side or distal end of the swing axis 166. The bow bridge 162 transitions to the bow legs 164, 165 that are first tilted toward each other and then extend approximately parallel to each other after rebending by the bow region that is roughly rounded at the same angle. The bow legs 164, 165 are constructed mirror-symmetrically to each other. It can also be said that the protection unit 150 or the wire bow 160 is constructed mirror-symmetrically about the mirror symmetry plane 188 that is unfolded by the rotation axis 23 and the guide rod axis 62. The free ends 168, 170 of the bow legs 164, 165 are bent about 90 ° relative to the bow leg regions 172, 174 that extend parallel to each other and are oriented toward each other. The free ends are thus oriented in the direction of the common swing axis 166. The free ends 168, 170 extend into a pivoting plain bearing opening 176 of the output device housing unit or motor housing unit 18. The pivoting plain bearing opening 176 or the wire bow end receptacle predetermines the pivot axis 166. The pivot axis extends orthogonally to the mirror symmetry plane 188 or perpendicularly to an axis (not shown here) extending at least parallel to the rotation axis 23. Figure 3 The side view of the wire bow 160 shows that the sections of the bow legs 164, 165 of the wire bow 160 extending toward each other are bent relative to the cutting plane 28 or are bent relative to the substantially parallel sections of the bow legs 164, 165. Here, it is bent at an angle 167 of about 20° relative to the dividing plane 180 or here also relative to the cutting plane 28.

[0031] The lawn mower 10 has an output unit 14, in particular a motor housing unit 18, which is connected to a housing unit 12 including a handle 40 via a guide rod 16 and is spaced apart from the housing unit. The protection unit 150 is configured as a wire bow 160. In principle, the protection unit (the wire bow) can also have a shape different from the aforementioned shape - for example, a round or angular shape on the front side. The wire bow 160 can be swiveled from the inactive position 152 to the use position 154. The output unit 14 or the motor housing unit 18 has a locking recess 182 in the area of ​​the split joint 178 of the output unit housing unit or the motor housing unit or in the area of ​​the output unit split plane or the motor housing split plane 180. The output unit split joint or the motor housing split joint or the split plane 178, 180 is arranged orthogonally to the output shaft axis or the rotation axis 23. The latching recess 182 is provided for releasably latching the wire bow 160, in particular the sections or legs of the wire bow 160 extending parallel to one another, in the use position 154. Due to the spring preload of the wire bow 160, in particular the legs 164, 165, towards one another, the wire bow 160 latches itself into the latching recess 182 when it is displaced into the region of the latching recess 182. Additional security in this position, for example by means of a displaceable mechanical locking device or a form-fitting device, is in principle conceivable, but is not required. The wire bow 160 latched into the latching recess 182 can be provided by Figure 1-3 Be informed.

[0032] The output device housing unit or motor housing unit 18 is designed as a pot housing 184 with a cover 186. The pot housing 184 and the cover 186 are preferably connected to each other in a sealing manner in the motor housing split plane 180. The pot housing 184 and the cover 186 are screwed to each other by screws 189; here, for example, three screws 189 are arranged each staggered by 120°. In the mirror symmetry plane 188 (see Figure 4) on both sides, preferably mirror-symmetrically with respect to the mirror symmetry plane 188, in the motor housing unit 18, a latching recess 182 is constructed. The latching recess 182 is concavely or circularly constructed in the tank housing 184 and the cover 186. The latching recess, in particular, forms a groove 183 together. The latching recess 182 preferably has a diameter 207, or a spacing between the side edge 185 and the stop surface 206 on the cover 186 and the tank housing 184, which diameter and spacing roughly correspond to the diameter of the wire of the wire bow 160, and the latching recess, in particular, has a diameter 207 or spacing (prompt word clearance fit) slightly larger than the diameter of the wire bow 160 or the cross-section of the protection unit 150. However, the latching recess can also have another shape in principle, such as a triangular groove shape or a rectangular groove shape. That is to say, the latching recess can also be formed by a groove or chamfer in the region of the motor housing split joint plane 190 on the motor housing unit 18. The latching recess 182 is introduced both into the pot housing 184 and into the cover 186, in particular in a mirror-symmetrical manner with respect to the motor housing part joint plane 190. The latching recess 182 is thus partially formed by the pot housing 184 and the cover 186, in particular 50% each, in particular by a concave groove, a chamfered groove or other groove. The latching recess 182 preferably forms a constriction that is designed mirror-symmetrically with respect to the motor housing part joint 178.

[0033] The output device housing unit or the motor housing unit 18 preferably forms two aforementioned latching recesses 182, in particular latching grooves 183. The longitudinal axes of the latching recesses 182 or latching grooves 183 extend substantially parallel to each other. The latching recesses are particularly mirror-symmetrically opposed, in particular mirror-symmetrically opposed with respect to the mirror symmetry plane 188. The latching recesses are preferably provided for latching and receiving two substantially parallel oriented bow legs 164, 165 or side arms of the wire bow 160.

[0034] The latching recess 182 has a longitudinal orientation tangential to the motor axis 21 or tangential to the side wall 192 of the motor housing unit 18. The latching recess is designed as a preferably groove 183-like recess in the side surface 194 of the motor housing unit 18.

[0035] The output unit 14 or the motor housing unit 18 comprises at least one swivel stop unit 200 protruding radially relative to the motor axis 21. The swivel stop unit is used as a stop for the protection unit 150 or the wire bow 160, in particular when the protection unit 150 or the wire bow 160 is transformed into the use position 184. The swivel stop unit 200 is configured as an angular, in particular right-angled or L-shaped swivel guide surface and / or stop surface 206, 208. The swivel stop unit 200 protrudes ear-shaped on both sides of the motor housing unit 18. The swivel guide element and / or stop element 204 or the swivel guide surface and / or stop surface 206, 208 protrude orthogonally to the mirror symmetry plane 188 and in opposite directions to each other, in particular from the side walls 192, 193 of the motor housing unit 18, in particular the tank housing 184 or the cover 186, preferably protruding substantially at a right angle.

[0036] A part of the swivel stop unit 200, in particular a free end 202 of a swivel stop element 204, protrudes axially, i.e., in particular in the direction of the rotation axis 23, beyond the motor housing split plane 180 of the motor housing unit 18. The swivel stop unit 200 is preferably configured solely on the pot housing 184 of the motor housing unit 18. The swivel stop unit extends axially beyond the motor housing split plane 180 to one side of the cover 186. The free end 202 of the swivel stop unit 200 or the swivel stop element 204 preferably extends parallel to the cover housing side wall 192 of the motor housing unit 18.

[0037] The wire bow 160 or the two bent free wire ends of the wire bow 160 are provided for sliding and swinging support, in particular, for sliding and swinging support that can be opened, for the protection unit 150 constructed as the wire bow 160. In the motor housing unit 18 or in the motor housing split plane 180 of the motor housing unit 18, a sliding and swinging bearing opening 176 for receiving the wire bow end is provided. The sliding and swinging bearing opening is two swinging sliding bearing openings 176 that are constructed along the swing axis 166, in particular, opposite, preferably opposite in mirror symmetry with respect to the mirror symmetry plane 188. The swing axis 166 does not intersect with the rotation axis 23 of the motor housing unit 18. The swing axis 166 is arranged offset toward the guide rod 16. The swing bearing or the swing axis 166 is thus arranged at a distance 210 from the locking recess 182. In particular, the distance 210 between the latching recess 182 and the pivot axis is several times smaller, preferably 3-5 times smaller, than the distance 212 between the latching recess 182 and the bow bridge 162, in particular the distance 212 orthogonal to the rotation axis 23. The pivot axis 166 is thus spaced apart from the latching recess 182, which enables the wire bow 160 to be securely held in the use position 154, but also enables releasability for transitioning to the rest position 152, in particular when the wire bow 160 is pivoted out, for example by pulling on the bow bridge 162 in the direction of the rotation axis 23, after overcoming a force threshold, in particular due to the wire bow 160 being latched in the latching recess 182 in an elastically preloaded manner.

[0038] A substantially U-shaped or one-side open and three-side closed guide receptacle for the wire bow 160 is formed by the motor housing outer wall, in particular the cover housing side wall 192, and the guide surface 208 and the stop surface 206 of the swivel stop unit 200 or the swivel stop element 204 (see in particular Figure 4 ). The guide receptacle is open on one side parallel to the axis of rotation 23 or toward the cover side of the motor housing unit 18. When the wire bow 160 is transformed or swung into the use position 154, the wire bow is guided to the stop surface 206 and then locked into the locking receptacle by its preloaded bow legs 164, 165, in particular the bow legs 164, 165 that are preloaded pointing toward each other. In the use position 154 or when locked in the use position 154 / when released from the use position 154, the guide surface 208 prevents the bow end from jumping out of the swing sliding bearing opening 176, because the guide surface prevents the free ends 168, 170 of the bow legs 164, 165 or the parallel oriented bow leg sections 172, 174 from opening too much.

[0039] A locking device 156 is provided on the guide rod 16 (see in particular Figure 3). The latching device is arranged on the front side of the guide rod 16. The latching device 156 has a latching element with a U-shaped latching profile 157. The latching profile is open in the direction of the housing unit 12. The legs of the U-shaped latching profile are oriented parallel to the guide rod axis 62. The wire bow 160 is configured to be displaced into the latching device 156 with a bow bridge 162, in particular the middle of the bow bridge 162. The wire bow 160 can be latched to the guide rod 16 in the inactive position 152 at least slightly preloaded by elastic deformation of the wire bow 160 or the bow bridge 162. The latching device or the latching element 156, 157 in particular comprises a plastic component, in particular the latching device or the latching element is formed by the plastic component.

[0040] The pot housing 182, the cover 186 or the swivel stop unit 200 are made of metal, preferably an aluminum alloy, or at least include metal. The swivel stop unit 200 is especially designed as a cast component, preferably integrally with the pot housing 184 of the motor housing unit. The swivel stop unit 200 preferably does not require mechanical reworking.

Claims

1. A lawn mower (10) or a brush cutter having an output device housing unit or a motor housing unit (18) and a protection unit (150), the protection unit comprising a wire bow (160), the wire bow being configured to be able to be swung from a rest position (152) to a use position (154), characterized in that: The output device housing unit or motor housing unit (18) forms a locking recess (182) in the area of ​​the output device housing split joint or motor housing split joint (178) for locking the wire bow (160) in the use position (154).

2. The lawn mower (10) or brush cutter according to claim 1, characterized in that: The output device housing unit or motor housing unit (18) is designed as a pot housing (184) with a cover (186), and / or the latching recess (182) is introduced in a mirror-symmetrical manner with respect to an output device housing part joining plane or a motor housing part joining plane (190).

3. The lawn mower (10) or brush cutter according to claim 2, characterized in that: The latching recess (182) is introduced into the tank housing (184) and the cover (186) in a mirror-symmetrical manner with respect to an output device housing split joining plane or a motor housing split joining plane (190).

4. A lawn mower (10) or brush cutter according to any one of claims 1 to 3, characterized in that: The latching recess (182) has a longitudinal orientation which is tangential to an output unit axis or motor axis (21) of an output device housing unit or motor housing unit (18).

5. The lawn mower (10) or brush cutter according to claim 4, characterized in that: The latching recess (182) is designed as a groove-shaped recess.

6. The lawn mower (10) or brush cutter according to claim 5, characterized in that: The groove-like recess is formed in a side surface of the output device housing unit or the motor housing unit.

7. A lawn mower (10) or brush cutter according to any one of claims 1 to 3, characterized in that: Two latching recesses (182) are provided which are mirror-symmetrically opposed.

8. The lawn mower (10) or brush cutter according to claim 7, characterized in that: The two latching recesses (182) extend parallel to each other.

9. The lawn mower (10) or brush cutter according to claim 7, characterized in that: The latching recess is used for latching and receiving two bow legs (164, 165) of the wire bow (160) which are oriented parallel to each other.

10. The lawn mower (10) or brush cutter according to claim 7, characterized in that: The latching recess is configured as a latching groove (183).

11. The lawn mower (10) or brush cutter according to claim 10, characterized in that: The latching recess is designed as two latching grooves (183) which are located opposite each other in a mirror-symmetrical manner and are oriented parallel to each other.

12. A lawn mower (10) or brush cutter according to any one of claims 1 to 3, characterized in that: The output device housing unit or motor housing unit (18) has a pivot stop unit (200) for the wire bow (160) which protrudes radially from the output device housing unit or motor housing unit relative to the output unit axis or motor axis (21).

13. The lawn mower (10) or brush cutter according to claim 12, characterized in that: The pivot stop unit comprises two pivot stop elements (204).

14. The lawn mower (10) or brush cutter according to claim 12, characterized in that: The pivot stop unit is designed as an angled or L-shaped pivot guide element and / or pivot stop element (204).

15. The lawn mower (10) or brush cutter according to claim 14, characterized in that: The pivot stop unit is designed as a right-angled pivot guide element and / or a pivot stop element (204).

16. The lawn mower (10) or brush cutter according to claim 14, characterized in that: The pivot guide element and / or the pivot stop element (204) is a pivot guide surface (208) and / or a pivot stop surface (206).

17. The lawn mower (10) or brush cutter according to claim 12, characterized in that: At least a portion of the pivot stop unit (200) protrudes axially beyond a split plane (180) of the output device housing unit or the motor housing unit (18).

18. The lawn mower (10) or brush cutter according to claim 17, characterized in that: At least a portion of the swing stop unit (200) axially extends beyond the split plane (180) by at least half the wire bow diameter width.

19. A lawn mower (10) or brush cutter according to claim 17 or 18, characterized in that: At least a part of the pivot stop unit (200) is a free end (202) of a pivot stop element (204).

20. The lawn mower (10) or brush cutter according to claim 12, characterized in that: The pivot stop unit (200) is formed on a tank housing part of the output device housing unit or motor housing unit (18).

21. The lawn mower (10) or brush cutter according to claim 20, characterized in that: The pivot stop unit (200) is formed solely on a tank housing part of the output device housing unit or motor housing unit (18).

22. The lawn mower (10) or brush cutter according to claim 20, characterized in that: The pivot stop unit is designed to extend axially parallel to a cover housing side wall (192) of the output housing unit or motor housing unit (18).

23. The lawn mower (10) or brush cutter according to claim 20, characterized in that: The pivot stop unit has a distance (212) from a cover housing side wall (192) of the output device housing unit or motor housing unit (18) that corresponds at least to the wire bow diameter (207).

24. The lawn mower (10) or brush cutter according to claim 12, characterized in that: The wire bow (160) has two wire ends (168, 170) which are provided for sliding and pivoting support of a protection unit (150) configured as a wire bow (160).

25. The lawn mower (10) or brush cutter according to claim 24, characterized in that The wire ends (168, 170) are configured to be bent at a right angle.

26. The lawn mower (10) or brush cutter according to claim 24, characterized in that The two wire ends (168, 170) are designed as free ends.

27. The lawn mower (10) or brush cutter according to claim 24, characterized in that The wire end is configured to provide expandable sliding and pivoting support for a protection unit (150) configured as a wire bow (160).

28. The lawn mower (10) or brush cutter according to claim 12, characterized in that: A sliding bearing opening (176) for receiving a wire end (168, 170) is formed in a split plane (180) of the output device housing unit or the motor housing unit (18).

29. The lawn mower (10) or brush cutter according to claim 28, characterized in that The sliding and pivoting bearing opening (176) is formed in a boundary plane between the pot housing part and the cover housing part.

30. The lawn mower (10) or brush cutter according to claim 28, characterized in that: The sliding and pivoting bearing openings (176) are two sliding and pivoting bearing openings (176) that are opposite to each other along the pivoting axis (166).

31. The lawn mower (10) or brush cutter according to claim 30, characterized in that: The two sliding pivot bearing openings (176) are arranged opposite each other in a mirror-symmetrical manner along the pivot axis (166).

32. The lawn mower (10) or brush cutter according to claim 12, characterized in that: The output device housing unit or motor housing unit (18) forms a U-shaped or one-side open and three-side surrounded guide receiving portion (214) for the wire bow (160) through the output device housing outer wall or motor housing outer wall and also through the stop surface (206) and the guide surface (208).

33. A lawn mower (10) or brush cutter according to claim 32, characterized in that: The output device housing outer wall or the motor housing outer wall includes a cover housing side wall (192).

34. The lawn mower (10) or brush cutter according to claim 32, characterized in that: The output device housing unit or the motor housing unit (18) forms the guide receptacle (214) when the wire bow (160) is transformed or pivoted into the use position (154).

35. A lawn mower (10) or a brush cutter having an output device housing unit or a motor housing unit (18) and a protection unit (150), the protection unit comprising a wire bow (160) which is configured to be able to be swung from a rest position (152) to a use position (154), characterized in that: The output device housing unit or motor housing unit (18) has a pivot stop unit (200) for the wire bow (160) which protrudes radially from the output device housing unit or motor housing unit relative to the output unit axis or motor axis (21).

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