Hand-held power tool system

Abstract

The invention relates to a hand-held power tool system (36a; 36b), comprising: a grinding machine (10a; 10b), in particular an eccentric or vibratory mill; and a battery pack (38a; 38b) for feeding the grinding machine (10a; 10b) of a motor vehicle. According to the invention, the hand-held power tool system (36a; 36b) has a bearing unit (92a; 92b) which is designed to move the grinding machine (10a; 92b) in at least one placement and / or rest position; 10b) is placed and / or resting on a floor surface (92a), wherein the battery pack (38a; 38b) has a bearing unit (92a; 108a) for at least one placement and / or rest position.

Description

Technical Field

[0001] The invention relates to a handheld machine tool system. Background Art

[0002] Handheld power tool systems have already been proposed which have a grinding machine and a battery pack for supplying energy to the grinding machine. Summary of the invention

[0003] The invention is based on a handheld power tool system having a grinding machine, in particular an eccentric grinding device or an oscillating grinding device, and having a battery pack for supplying energy to the grinding machine.

[0004] It is proposed that the handheld power tool system has a support unit which is designed to place and / or place the grinding machine on a ground in at least one placement and / or resting position, wherein the battery pack has a support surface of the support unit for the at least one placement and / or resting position.

[0005] Advantageously, the grinding machine can be safely placed by means of the battery pack. Advantageously, the grinding machine can be placed comfortably by the operator. The operator can place or rest the grinding machine by means of the battery pack in order to clean, maintain, etc. the handheld power tool and / or the tools arranged on the grinding machine. A particularly high level of operating comfort can be achieved.

[0006] It is conceivable that the support points or support lines form the support surface. It is also conceivable that the support surface comprises a plurality of support locations, which are in particular spaced apart from one another. Preferably, the support surface is a continuous surface, which in particular in at least one placement and / or resting position rests on the ground. The ground can be, for example, the floor, a table, etc. The battery pack in particular has a battery pack housing. The battery pack housing has a support surface.

[0007] It is conceivable that the support unit is designed for placing and / or resting the grinding machine on the ground in at least one further placement and / or storage position. For example, the battery pack has a further support surface of the support unit for at least one further placement and / or storage position. It is also conceivable that the housing unit of the grinding machine, in particular the handle housing of the housing unit and / or the drive housing of the housing unit, has at least one additional support surface for a placement and / or storage position and / or for at least one further placement and / or storage position.

[0008] In one aspect of the invention, which aspect can be considered in particular alone and also in combination with other aspects of the invention, the invention proceeds from a grinding machine, in particular a battery-powered grinding machine, which has been mentioned above, and comprises a tool holder, in particular a grinding pad; a drive unit for driving the tool holder; and a housing unit, in particular, which has been mentioned above, which has a bow-shaped handle. It is proposed that the ratio of the maximum longitudinal extension of the handle recess of the bow-shaped handle to the maximum longitudinal extension of the tool holder is at least 0.35 and at most 0.5. Advantageously, a grinding machine with particularly advantageous ergonomic features can be provided. Advantageously, in particular, depending on the size of the tool holder, a particularly large amount of space for the operator's fingers can be provided in the handle recess for guiding the grinding machine. A particularly precise and / or safe operation of the grinding machine can be achieved. Advantageously, a particularly high level of operating comfort can be achieved.

[0009] The grinding machine is preferably designed as a battery-operated grinding machine. However, it is also conceivable that the grinding machine is designed as a mains-operated grinding machine. The grinding machine is preferably designed as an eccentric grinding device. However, it is also conceivable that the grinding machine is designed as a vibration grinding device, a triangular grinding device, a fancy grinding device, etc.

[0010] The tool holder is preferably designed as a grinding pad. The tool holder is preferably designed as a round grinding pad. However, it is also conceivable that the tool holder is designed as a triangle, as a four-cornered, preferably rectangular grinding pad or other grinding pads that appear to be meaningful to a person skilled in the art. The tool holder has in particular a fastening device for fastening a tool, preferably a grinding device. The fastening device includes, for example, one or more Velcro surfaces. One or more clips, a combination thereof or other fastening means which appear to be sensible to a person skilled in the art. The grinding means are preferably designed as grinding paper, grinding fabric, grinding grid or the like.

[0011] The drive unit has in particular a drive element, preferably an eccentric. The drive element is preferably arranged for driving around a drive axis of the drive unit. The grinding machine preferably has an output unit. The tool receiving part is in particular a part of the output unit. The output unit preferably has a connecting piece. The connecting piece is arranged, preferably fastened to the drive element. The tool receiving part is preferably fastened to the connecting piece, in particular in a rotationally fixed manner, for example by means of screws or the like. The output element has in particular an output axis. The output axis preferably extends at least substantially parallel to the drive axis. The drive axis is in particular spaced apart from the output axis. "Substantially parallel" can be understood here as an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2° relative to the reference direction. In particular, the connecting piece and / or the tool receiving part, preferably the output axis, moves around the drive axis, preferably in a circular manner, in at least one operating state. The drive element is in particular arranged to drive the connecting piece and / or the tool receiving part, preferably the output shaft, for a preferably circular movement around the drive axis of the drive element.

[0012] “Set” is to be understood as specifically setting, specifically designing and / or specifically equipping. An object being set for a certain function is to be understood as meaning that the object satisfies and / or performs the certain function in at least one application and / or operating state.

[0013] The connecting piece is preferably fastened rotatably, in particular rotatably around the output axis, to the drive element. The grinding machine preferably has at least one bearing element. The connecting piece is rotatably supported on the drive element, in particular via the bearing element, preferably rotatably around the output axis. The bearing element is preferably arranged between the drive element and the connecting piece. The bearing element is preferably designed as a radial bearing, in particular a rolling bearing, such as a ball bearing or a sliding bearing.

[0014] The drive unit is preferably provided for driving the output unit, in particular the tool receptacle. The drive unit preferably has an electric motor or the like, in particular for driving the drive element.

[0015] The grinding machine preferably has a housing unit. The housing unit preferably has a driver housing for receiving the drive unit. The driver housing preferably has a fan housing for receiving a suction fan. Preferably, the suction fan is arranged to suck away the debris formed when machining the workpiece from the workpiece and in particular blow it away from the dust outlet of the grinding machine. The driver housing preferably has a motor housing for receiving the drive unit. The fan housing is preferably arranged between the motor housing and the tool receiving portion. The suction fan is preferably made of metal, in particular cast. However, it is also conceivable that the suction fan is made of plastic or a combination of plastic and metal.

[0016] The housing unit has in particular a handle housing. Preferably, the bow handle is part of the handle housing. The handle housing preferably has two handle housing shells. They are connected to each other in particular in a separating plane of the handle housing. The handle housing is preferably constructed separately from the drive housing, in particular arranged at a distance from the drive housing. The handle housing has in particular a shell construction with two handle housing shells as half shells.

[0017] The bow handle preferably has a finger grip surface. The bow handle preferably has two walls, in particular side walls, which delimit the finger grip surface, in particular in the main extension plane of the bow handle and viewed in a direction perpendicular to the drive axis. The "main extension plane" of a structural unit or element can be understood as a plane that is parallel to the largest side of a minimal imaginary cuboid that just completely surrounds the structural unit and in particular extends through the center point of the cuboid. Preferably, the bow handle is configured as a closed bow handle. However, it is also conceivable that the bow handle is configured as an open bow handle as an alternative. Preferably, the wall at least partially defines, in particular delimits, a grip recess.

[0018] The maximum longitudinal extension of the handle recess preferably extends at least substantially parallel to the tool receiving surface of the tool receiving portion. The maximum longitudinal extension of the handle recess preferably extends in the main extension plane of the bow handle, preferably in the main extension plane of the handle housing, in particular in the separation plane of the handle housing. Preferably, the main extension plane of the bow handle corresponds to the main extension plane of the handle housing. Alternatively, it is conceivable that the main extension plane of the bow handle is different from the main extension plane of the handle housing. The separation plane preferably coincides with the main extension plane of the handle housing and / or the main extension plane of the bow handle. However, it is also conceivable that the main extension plane of the bow handle and / or the main extension plane of the handle housing is different from the separation plane.

[0019] The tool receiving surface preferably extends at least substantially perpendicularly to the separation plane, the main extension plane of the handle housing and / or the main extension plane of the bow handle. The term "substantially perpendicular" can be understood as an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular when viewed in the projection plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°.

[0020] The maximum longitudinal extension of the tool receiving part extends in particular at least substantially parallel to the maximum longitudinal extension of the handle recess and / or the tool receiving part surface. The maximum longitudinal extension of the tool receiving part preferably extends in a separation plane of the handle housing, in a main extension plane of the handle housing and / or in a main extension plane of the bow handle. The maximum longitudinal extension of the tool receiving part is in particular defined by the maximum longitudinal extension of the tool receiving part surface. The tool is in particular provided for being arranged on the tool receiving part surface.

[0021] Preferably, the ratio of the maximum longitudinal extension of the handle recess of the bow handle to the maximum longitudinal extension of the tool receiving portion is at least 0.38. Preferably, the ratio of the maximum longitudinal extension of the handle recess of the bow handle to the maximum longitudinal extension of the tool receiving portion is at most 0.42. Particularly preferably, the ratio of the maximum longitudinal extension of the handle recess of the bow handle to the maximum longitudinal extension of the tool receiving portion is at least substantially 0.4. The maximum longitudinal extension of the handle recess is preferably at least 50 mm, preferably at least 55 mm and particularly preferably at least 60 mm. The maximum longitudinal extension of the handle recess is preferably at most 80 mm, preferably at most 70 mm and particularly preferably at most 75 mm. Particularly preferably, the maximum longitudinal extension of the handle recess is at least substantially 61 mm. However, it is also conceivable that the maximum longitudinal extension of the handle recess is greater than 80 mm or less than 50 mm.

[0022] The handle housing has in particular a palm grip, in particular a ball grip. The palm grip is preferably arranged in such a way that the drive shaft intersects with the palm grip. The bow grip transitions in particular into the palm grip. The fan housing is in particular arranged between the tool receptacle and the palm grip. The handle housing, in particular the palm grip, surrounds the motor housing, preferably at least in a plane extending perpendicular to the drive axis.

[0023] The grinding machine preferably has a battery pack interface for electrical and / or mechanical connection with the battery pack. The battery pack interface particularly has a guide device, such as one or more guide rails, etc., for guiding the battery pack when assembling and / or disassembling the battery pack on the battery pack interface. The battery pack interface, in particular the guide device, preferably predetermines the insertion direction for the battery pack when assembling the battery pack on the battery pack interface. The insertion direction is preferably at least substantially perpendicular to the drive axis, the separation plane, the main extension plane of the bow handle and / or the main extension plane of the handle housing. The insertion direction extends in particular at least substantially parallel to the tool receiving surface. Preferably, the battery pack interface is arranged on the handle housing, in particular on the side of the bow handle facing away from the palm grip. The battery pack interface particularly has no interface with the main extension plane of the drive axis and / or the tool receiving surface.

[0024] Preferably, the handheld power tool, in particular a grinding machine, has at least one input element. Preferably, the handheld power tool can be switched on and / or off by the operator actuating the input element. Alternatively or additionally, it is conceivable that the rotational speed of the handheld power tool can be set, etc., by means of the input element. The input element can be designed, for example, as a button, a rotary wheel, a switch, etc. The input element is arranged, for example, on the palm grip, preferably on the side of the palm grip facing away from the battery pack interface, the tool receptacle and / or the bow grip.

[0025] The grinding machine is preferably arranged for one-handed guidance, in particular by means of a bow handle and a palm handle. However, alternatively, it is also conceivable that the grinding device is configured for two-handed guidance, wherein each hand of the operator is arranged on the palm handle and on the bow handle.

[0026] In one aspect of the invention, which can be considered in particular alone and in combination with other aspects of the invention, the invention is based on a handheld power tool device, in particular a handheld grinding machine device, for a handheld power tool, in particular preferably a grinding machine as already mentioned above, comprising a housing unit as already mentioned above, which has at least one handle housing as already mentioned above and a drive housing as already mentioned above, which is coupled to the handle housing. It is proposed that the drive housing has a central projection on the surface of the upper side of the drive housing, which is raised relative to the surface, above which the end of the handle housing is arranged, in particular, wherein the central projection descends into the surface in two directions starting from the main extension plane of the handle housing as already mentioned above and extending perpendicularly to the main extension plane of the handle housing.

[0027] Advantageously, the configuration of the drive housing with such a central projection enables a particularly space-saving configuration of the hand-held power tool device, in particular with regard to the overall height of the hand-held power tool. A particularly large gripping surface can be achieved on the handle housing. Advantageously, contact of the operator's fingers with the drive housing can be effectively counteracted. The operator can be particularly effectively protected from vibrations. Advantageously, a particularly high level of operating comfort can be achieved. A particularly precise and / or safe guidance of the hand-held power tool can be achieved.

[0028] The central projection protrudes in particular from the adjacent surface in an increased manner. The maximum lateral extension of the central projection is preferably smaller than the maximum total lateral extension of the handle housing. The maximum lateral extension of the central projection preferably extends at least substantially perpendicular to the main extension plane of the bow handle, the main extension plane of the handle housing, the separation plane and / or the drive axis. The maximum lateral extension of the central projection extends in particular at least substantially parallel to the tool receiving portion surface of the tool receiving portion. The maximum lateral extension of the central projection is preferably smaller than the maximum lateral extension of the handle housing on the end of the central projection arranged above the central projection. The end of the handle housing is arranged above the central projection in particular with respect to the tool receiving portion and / or the surface.

[0029] The central projection preferably has a main extension axis. The "main extension axis" of an object can be understood here in particular as an axis that is parallel to the longest side of the smallest geometric cuboid that just completely surrounds the object and in particular extends through the midpoint of the cuboid. The main extension axis of the central projection is in particular at least substantially perpendicular to the drive axis and / or the maximum lateral extension dimension of the central projection. The main extension axis of the central projection is in particular at least substantially parallel to the main extension plane of the bow handle, the main extension plane of the handle housing, the separation plane and / or the tool receiving surface. Preferably, the main extension axis of the central projection extends in the main extension plane of the bow handle, the main extension plane of the handle housing and / or the separation plane.

[0030] The central projection preferably extends at least in the direction of the main extension axis of the central projection, in particular over a large part of the surface, preferably over at least 50%, preferably at least 75% and particularly preferably over 90% of the surface. The upper side, preferably the surface, is arranged in particular facing away from the tool receiving portion. The central projection has a curvature, preferably a curvature matching the surface, in particular in the longitudinal direction, preferably in the direction of the main extension axis of the central projection. However, it is also conceivable that the central projection is configured without curvature in the longitudinal direction.

[0031] In one aspect of the invention, which can be considered in particular alone and in combination with other aspects of the invention, the invention is based on a protective device, in particular a wall protection ring, for protecting a hand-held power tool, in particular a tool and / or a tool holder, in particular a grinding pad, which can be arranged on the hand-held power tool, as mentioned above, from collision with objects in the working environment of the hand-held power tool. It is proposed that the protective device has a shielding unit and / or a light guide unit for at least one light source.

[0032] Can realize by hand-held power tool to be processed workpiece particularly effective and / or precise illumination.Can resist operator's dazzle by this configuration of hand-held power tool device.Advantageously can realize particularly high operating comfort and / or particularly high operating safety.

[0033] The protective device is in particular designed as a protective ring. The protective device is preferably provided as a buffer for a handheld power tool. In particular, the protective device is provided to counteract a collision of the tool receptacle and / or a tool arranged on the tool receptacle against a wall or the like in the working environment. In at least one operating state, the protective device is preferably arranged on the drive housing. Preferably, the protective device is provided for being arranged on a fan housing.

[0034] The shielding unit is particularly configured to shield an area from light incident on at least one light source. The shielding unit, for example, has at least one shielding element. However, alternatively, it is also conceivable that the shielding unit has a plurality of shielding elements. The shielding element is preferably a light-proof component. It is conceivable that the shielding element is configured as a reflector, such as a mirror, etc.

[0035] The protective device preferably has a base body. It is conceivable that the shielding unit, in particular at least one shielding element, is constructed integrally with the base body. It is conceivable that the shielding unit, in particular at least one shielding element, is formed by the base body of the protective device. Alternatively, it is also conceivable that the shielding unit, in particular at least one shielding element, is constructed separately from the base body. It is particularly conceivable that the shielding unit, preferably at least one shielding element, can be fastened, preferably releasably fastened to the base body. "Releasable" in this context should be understood as "separable without destruction". It is also conceivable that the shielding unit, in particular at least one shielding element, can be adjustably arranged on the base body, preferably in order to match the shielding area by the shielding unit.

[0036] The light guide unit is preferably arranged on the base body and / or the shielding unit. For example, the light guide unit has at least one light guide element and preferably has a plurality of light guide elements. The light guide unit is particularly configured to guide and / or emit light of at least one light source. At least one light guide element is, for example, configured as a transparent fiber, tube or rod. It is also conceivable that the light guide unit has at least one emitting element, in particular a light scattering element, for example in the form of sandblasted, scattering glass, plastic or ceramic sheets, scattering plastic films, etc. The emitting element is preferably arranged on the base body and / or the shielding unit. It is also conceivable that the emitting element is part of the light guide element or forms the light guide element.

[0037] At least one light source is, for example, part of a handheld power tool, in particular a grinding machine. However, alternatively or additionally, it is also conceivable that the light source is part of the protective device. The light source is, for example, configured as an LED, an incandescent lamp, or other luminous means that appear to be meaningful to those skilled in the art.

[0038] In one aspect of the invention, which aspect can be considered in particular alone and in combination with other aspects of the invention, the invention proceeds from a particularly previously mentioned hand-held power tool device, comprising a particularly previously mentioned housing unit, which has a particularly previously mentioned handle housing and a particularly previously mentioned drive housing for receiving a preferably previously mentioned drive unit, wherein the drive housing predetermines a particularly previously mentioned drive axis of the drive unit, and has a damping unit, which couples the drive housing to the handle housing. It is proposed that the drive housing has a projection extending at least radially with respect to the drive axis, on which at least a part of the damping unit is arranged.

[0039] Advantageously, a particularly effective decoupling of the handle housing from vibrations on the drive housing can be achieved while simultaneously providing particularly precise and / or comfortable guidance of the handheld power tool. A particularly high level of operating comfort can be achieved. Advantageously, a particularly wide support of the drive housing on the handle housing can be achieved. Advantageously, a particularly stable guidance of the handheld power tool can be achieved. A particularly high level of operating safety can be achieved.

[0040] In particular, the motor housing predetermines the drive axis. Preferably, the motor housing has a motor receptacle, in the central longitudinal axis of which the motor axis is located. The drive axis is particularly defined by the motor axis. The central longitudinal axis particularly coincides with the drive axis.

[0041] The damping unit preferably has a plurality of damping elements. The damping element is preferably made of at least one elastic material, in particular elastic plastic. The damping element can be designed as a block, a ring, a ring segment, a plate, etc. The driver housing is preferably connected to the handle housing via the damping element. The damping unit is particularly provided for vibration decoupling of the handle housing from the driver housing. The handle housing is preferably connected to the driver housing only via the damping unit, in particular the damping element of the damping unit.

[0042] At least a part of the damping element can preferably be fixed between the driver housing and the handle housing by clamping. It is also conceivable that the damping element has an adhesive layer for fastening to the driver housing and / or to the handle housing. Additionally or alternatively, it is conceivable that at least a part of the damping element can be fastened to the handle housing and / or to the driver housing by means of a damping element receiving portion, such as a groove, a receiving bolt, etc. and / or by a threaded connection, etc.

[0043] The handle housing is coupled to the drive housing, in particular via two mutually different coupling regions of the damping unit. Preferably, the handle housing has two inner regions, in particular spaced apart from each other, in which a part of the drive housing is arranged, respectively. In the two inner regions, in particular two coupling regions are arranged.

[0044] The projection is preferably arranged on the side of the driver housing facing the battery pack interface. The projection is preferably arranged in the handle housing, in particular in one of the two inner regions of the handle housing. The projection forms the outermost point of the driver housing, in particular when viewed in a direction perpendicular to the drive axis and extending in the separating plane. The projection is preferably at least partially surrounded by the handle housing.

[0045] The part of the damping unit arranged on the extension part has at least one damping element of the damping elements in particular. The extension part preferably has at least one damping element receiving part for at least one damping element. The damping element is preferably matched to the damping element receiving part in terms of shaping technology. The damping element receiving part is, for example, configured as a receiving bolt, in particular for receiving an annular damping element. The damping element receiving part is, for example, arranged to receive at least one damping element perpendicular to the main extension plane of the handle housing, in particular the main extension plane of the bow handle and / or the separation plane. The extension part is, for example, configured in a T-shape, in particular for receiving at least two damping elements. However, alternatively, for example, it is also conceivable that the damping element receiving part is configured as a groove, in particular for receiving a damping element configured as a block, a plate, etc. It is conceivable that at least one damping element is fixed to the damping element receiving part through the handle housing, in particular the handle housing shell. However, alternatively or additionally, it is also conceivable that the damping element is bonded, screwed, etc. to the damping element receiving part.

[0046] In one aspect of the present invention, which aspect can be considered in particular independently of other aspects of the present invention, it is proposed that the center of gravity of the grinding machine is arranged in the handle groove of the bow handle. Advantageously, a particularly high comfort can be achieved when operating the handheld machine tool. Advantageously, a particularly advantageous weight distribution can be achieved. Particularly advantageous ergonomic features can be achieved. Preferably, the center of gravity is arranged in the handle groove at least in a direction perpendicular to the main extension plane of the bow handle, in particular the main extension plane extending from the handle housing. The minimum distance between the center of gravity and the separation plane of the handle housing, the main extension plane of the handle housing and / or the main extension plane of the bow handle is preferably less than the maximum lateral extension dimension of the handle housing, in particular the bow handle based on the separation plane of the handle housing, the main extension plane of the handle housing or the main extension plane of the bow handle. It is also conceivable that the center of gravity is arranged in the separation plane of the handle housing, in the main extension plane of the handle housing and / or in the main extension plane of the bow handle. The handle housing, in particular the bow handle, preferably extends from a separation plane of the handle housing, a main extension plane of the handle housing and / or a main extension plane of the bow handle, preferably at least substantially perpendicularly to the main extension plane of the bow handle, in particular the main extension plane of the handle housing, the separation plane and / or the drive axis. The handle housing, in particular the bow handle, preferably extends from a separation plane of the handle housing, a main extension plane of the handle housing and / or a main extension plane of the bow handle, preferably at least substantially parallel to the tool receiving surface.

[0047] It is further proposed that the ratio of the maximum distance of the tool receiving part from the center of gravity in the direction of the drive axis to the minimum distance between the drive axis and the center of gravity is at least 2.8 and at most 3.5. Advantageously, a particularly advantageous weight distribution can be achieved with respect to the operation and / or guidance of the handheld power tool. A particularly high operating comfort and / or particularly advantageous ergonomics of the grinding machine can be achieved. Preferably, the ratio of the maximum distance of the tool receiving part from the center of gravity in the direction of the drive axis to the minimum distance between the drive axis and the center of gravity is at least 3.0, particularly preferably at least 3.1. Preferably, the ratio of the maximum distance of the tool receiving part from the center of gravity in the direction of the drive axis to the minimum distance between the drive axis and the center of gravity is at most 3.2. The maximum distance of the tool receiving part from the center of gravity in the direction of the drive axis is particularly defined by the maximum distance of the tool receiving part surface from the center of gravity in the direction of the drive axis. The maximum distance of the tool receiving part from the center of gravity in the direction of the drive axis is particularly at least 30 mm, preferably at least 33 mm, preferably at least 35 mm. The maximum distance between the tool receiving portion and the center of gravity along the direction of the drive axis is in particular a maximum of 50 mm, preferably a maximum of 45 mm and particularly preferably a maximum of 40 mm. For example, the maximum distance between the tool receiving portion and the center of gravity along the direction of the drive axis is at least substantially 38 mm. However, alternatively, it is also conceivable that the maximum distance between the tool receiving portion and the center of gravity along the direction of the drive axis is less than 30 mm or greater than 50 mm. The minimum distance between the drive axis and the center of gravity is in particular at least 8 mm, preferably at least 10 mm. The minimum distance between the drive axis and the center of gravity is in particular a maximum of 20 mm, preferably a maximum of 15 mm. For example, the minimum distance between the drive axis and the center of gravity is at least substantially 12 mm. However, alternatively, it is also conceivable that the minimum distance between the drive axis and the center of gravity is less than 8 mm or greater than 20 mm. The drive axis extends in particular at least substantially perpendicular to the tool receiving portion surface. The drive axis extends in particular at least substantially parallel to the main extension plane of the handle housing, in particular the main extension plane of the bow handle and / or the separation plane. It is conceivable that the drive axis extends in the main extension plane of the handle housing, in the main extension plane of the bow handle and / or in the separation plane. The minimum distance between the drive axis and the center of gravity extends in particular at least substantially perpendicular to the drive axis. The minimum distance between the drive axis and the center of gravity extends in particular at least substantially parallel to the tool receiving surface, the main extension plane of the handle housing, the main extension plane of the bow handle and / or the separating plane.

[0048] It is further proposed that the maximum height of the grinding machine in the direction of the drive axis has a ratio of at least 2.8 and at most 3.2 to the maximum distance between the tool receptacle and the center of gravity in the direction of the drive axis, in particular the previously mentioned maximum distance. Advantageously, the center of gravity of the handheld power tool is particularly deep in relation to the maximum height of the grinding machine. Advantageously, a particularly advantageous weight distribution and / or particularly advantageous ergonomic features can be achieved with respect to the operation and / or guidance of the handheld power tool. A particularly high level of operating comfort can be achieved. Advantageously, a particularly high stability of the grinding machine can be achieved. The ratio of the maximum height of the grinding machine in the direction of the drive axis to the maximum distance between the tool receptacle and the center of gravity in the direction of the drive axis is preferably at least 3.0. The ratio of the maximum height of the grinding machine in the direction of the drive axis to the maximum distance between the tool receptacle and the center of gravity in the direction of the drive axis is preferably at most 3.1. The maximum height of the grinding machine in the direction of the drive axis preferably extends from the tool receptacle surface parallel to the drive axis to the outermost point of the handle housing. The maximum height of the grinding machine is preferably at least 100 mm, preferably at least 110 mm. The maximum height of the grinding machine is preferably a maximum of 130 mm, preferably a maximum of 120 mm. However, it is alternatively conceivable that the maximum height of the grinding machine in the direction of the drive axis is less than 110 mm or greater than 130 mm. The ratio of the maximum height of the grinding machine to the maximum height of the handle recess in a direction extending parallel to the drive axis is preferably at least 4.0, preferably at least 4.3, particularly preferably at least 4.4 and a maximum of 5.0, preferably a maximum of 4.7, particularly preferably a maximum of 4.6. The maximum height of the handle recess is preferably between 20 mm and 30 mm, advantageously between 24 mm and 28 mm and particularly preferably at least substantially 26 mm.

[0049] In addition, it is proposed that the handle groove of the bow handle is closed, preferably basically elliptical. Advantageously, the fingers of the operator can be protected particularly effectively. Advantageously, the handle housing can be additionally supported by the closed bow handle. A particularly high stability of the handheld power tool can be achieved. In particular, the handle groove is closed when viewed in the main extension plane of the bow handle, in the main extension plane of the handle housing and / or in the separation plane. The handle groove is especially closed by the wall of the drive housing, especially the fan housing of the drive housing and the wall of the handle housing. Alternatively, it can be considered that the handle groove is completely closed by the wall of the handle housing. Preferably, the handle groove is especially viewed in the direction perpendicular to the main extension plane of the bow handle, preferably the main extension plane of the handle housing, and has an elliptical shape. However, it can also be considered that the handle groove is especially viewed in the direction perpendicular to the main extension plane of the bow handle, preferably the main extension plane of the handle housing, and has a rectangular shape, a rectangular shape, a circular shape or other shapes that seem meaningful to those skilled in the art.

[0050] It is further proposed that the battery pack has a battery pack center of gravity, which is arranged offset from the main extension plane of the bow handle when arranged on the grinding machine. Advantageously, a structurally induced shift of the center of gravity of the grinding machine with respect to the main extension plane of the bow handle can be compensated. A handheld power tool system with a particularly advantageous weight distribution can be provided. Advantageously, a particularly ergonomic handheld power tool system can be provided. A particularly high level of operating comfort can be achieved. The minimum distance of the battery pack center of gravity from the separation plane of the handle housing, the main extension plane of the handle housing and / or the main extension plane of the bow handle is preferably smaller than the maximum lateral extension dimension of the handle housing, in particular the bow handle, from the separation plane of the handle housing, the main extension plane of the handle housing or the main extension plane of the bow handle. In particular, the minimum distance of the battery pack center of gravity from the separation plane of the handle housing, the main extension plane of the handle housing and / or the main extension plane of the bow handle is less than 20 mm, preferably less than 15 mm and preferably less than 10 mm.

[0051] In addition, it is proposed that the grinding machine has a dust outlet, in particular the dust outlet mentioned above, wherein the center of gravity of the battery pack and the dust outlet are arranged on different sides of the main extension plane of the bow handle. Advantageously, the center of gravity shift that can be eccentric with respect to the main extension plane of the bow handle can be kept particularly small and particularly advantageously compensated by the battery pack or the dust outlet. Advantageously, a grinding machine with particularly high operating comfort can be provided. For example, the center of gravity of the grinding machine and the center of gravity of the battery pack are arranged on different sides of the main extension plane of the bow handle. The dust outlet is especially arranged on the drive housing, preferably on the fan housing. The dust outlet is especially arranged on one side of the separation plane, the main extension plane of the bow handle and / or the main extension plane of the handle housing. Preferably, the handheld power tool system has a dust collection container, such as a dust box, a dust bag, etc. The overall center of gravity of the handheld power tool system is particularly related to the handheld power tool, preferably the grinding machine with the battery pack and preferably without a dust collection container and / or a protective device. Preferably, the dust collection container can be especially releasably fastened to the dust outlet, for example by means of a threaded connection, a latching connection, etc. Alternatively, it is also conceivable that at least one dust outlet connection piece of the dust collection container is integrally constructed with the dust outlet. Preferably, the dust collection container is rotatably supported on the dust outlet. However, it is also conceivable that the dust collection container can be connected to the dust outlet in a torsionally fixed manner. The dust collection container is particularly arranged to receive dust and / or debris preferably sucked by means of a suction fan. Alternatively or additionally, it is conceivable that the dust outlet can be coupled with an active suction device, such as a dust collector, especially in a portable power tool configured without a suction fan. It is also conceivable that the dust collection container is compressible by contact with the ground when the portable power tool is placed in a placement and / or resting position, especially so as to enable the portable power tool to be placed in a placement and / or resting position. Alternatively or additionally, it is also conceivable that the dust collection container can be moved in the direction of the dust outlet by contact with the ground when the portable power tool is placed in a placement and / or resting position, especially can be moved relative to the dust outlet.

[0052] It is further proposed that the ratio of the minimum distance between the center of gravity of the battery pack and the drive axis of the drive unit in the state arranged on the grinding machine to the maximum longitudinal extension of the tool holder is at least 0.85 and at most 1.2. Advantageously, a particularly favorable weight distribution is achieved with respect to the operation and / or guidance of the handheld power tool. A particularly high level of operating comfort can be achieved. The minimum distance between the center of gravity of the battery pack and the drive axis in the state arranged on the grinding machine extends in particular at least substantially parallel to the tool holder surface, the main extension plane of the bow handle, the main extension plane of the handle housing and / or the separating plane. The minimum distance between the center of gravity of the battery pack and the drive axis in the state arranged on the grinding machine extends in particular at least substantially perpendicular to the drive axis. For example, the minimum distance between the center of gravity of the battery pack and the drive axis is at least substantially 136 mm in the case of a battery pack with a charge capacity of 4 Ah, at least substantially 148 mm in the case of a battery pack with a charge capacity of 8 Ah, and at least substantially 160 mm in the case of a battery pack with a charge capacity of 12 Ah. However, other values ​​for the minimum distance between the center of gravity of the battery pack and the drive axis are alternatively conceivable, in particular depending on the weight of the battery pack.

[0053] It is further proposed that the overall center of gravity of the handheld power tool system, in particular the above-mentioned overall center of gravity, is arranged in the grip recess of the bow handle. Advantageously, a particularly high level of comfort can be achieved when operating the handheld power tool. Advantageously, a particularly advantageous weight distribution can be achieved. The minimum distance of the overall center of gravity from the separation plane of the handle housing, the main extension plane of the handle housing and / or the main extension plane of the bow handle is preferably smaller than the maximum lateral extension dimension of the handle housing, in particular the bow handle, from the separation plane of the handle housing, the main extension plane of the handle housing and / or the main extension plane of the bow handle. Preferably, the overall center of gravity is arranged in the separation plane of the handle housing, in the main extension plane of the handle housing and / or in the main extension plane of the bow handle. Preferably, the overall center of gravity of the handheld power tool system, at least with a battery pack having a single-layer battery cell structure, is arranged in the grip recess of the bow handle. Preferably, the position of the overall center of gravity of the handheld power tool system, with a battery pack having a single-layer battery cell structure, is such that the handheld power tool can be placed on the tool receiving portion, in particular without tilting.

[0054] The minimum distance of the drive axis from the total center of gravity has a value of at least 55 mm to at least 70 mm, in particular depending on the weight of the battery pack. The minimum distance of the drive axis from the total center of gravity has a value of at most 65 mm to at most 75 mm, in particular depending on the weight of the battery pack. The maximum distance of the tool holder from the total center of gravity in the direction of the drive axis has a value of at least 45 mm to at least 50 mm, in particular depending on the weight of the battery pack. The maximum distance of the tool holder from the total center of gravity in the direction of the drive axis has a value of at most 52 mm to at most 55 mm, in particular depending on the weight of the battery pack.

[0055] It is further proposed that the ratio of the minimum distance between the battery pack center of gravity of the battery pack and the drive axis of the drive unit in the state arranged on the grinding machine to the maximum longitudinal extension of the grip recess of the bow handle is at least 2.0 and at most 3.0. Advantageously, a particularly precise and / or controlled handling of the grinding machine can be achieved. Advantageously, particularly safe and / or precise work with the grinding machine can be achieved. Advantageously, a handheld power tool system with particularly advantageous ergonomics can be provided.

[0056] It is further proposed that the handle housing at least partially covers the central projection on both sides in a direction extending perpendicularly to the main extension plane of the handle housing. Advantageously, a particularly large gripping surface for the operator can be provided. The operator can be resisted from contacting the drive housing when using the handheld power tool device. Advantageously, a particularly high level of operating comfort can be achieved. The handle housing covers the central projection on both sides in a direction extending perpendicularly to the main extension plane of the handle housing, in particular by at least 10%, preferably at least 20% and preferably at least 30% in height. The central projection is not covered by the handle housing, in particular in the longitudinal direction. It is also conceivable that the handle housing covers the central projection on both sides in a direction extending perpendicularly to the main extension plane of the handle housing, in particular by at least 50%, preferably at least 70% and preferably at least 90% in height.

[0057] In addition, it is proposed that the end of the handle housing facing the central protrusion, preferably the end mentioned above, especially the end that surrounds the driver housing in an annular manner, is arranged spaced apart from the driver housing, especially radially and axially spaced apart, preferably about the drive axis. Advantageously, a particularly large gripping area for the operator can be provided. The contact of the operator with the driver housing can be resisted when using the handheld machine tool device. Advantageously, a particularly high operating comfort can be achieved. Preferably, the end is arranged spaced apart from the surface. Preferably, the end surrounds the motor housing of the driver housing in an annular manner. The motor housing is particularly arranged on the central protrusion. The motor housing is preferably arranged on the side of the central protrusion away from the tool receiving portion, especially arranged above the central protrusion with respect to the tool receiving portion. The motor housing is preferably surrounded by the handle housing in a plane perpendicular to the drive axis. Preferably, the motor housing is at least substantially completely surrounded by the handle housing in a radial direction from the drive axis. "At least substantially completely" can be understood as at least 50%, preferably at least 75%, and particularly preferably at least 90% of the total volume and / or total mass of the object. Preferably, the motor housing is at least partially constructed in one piece with the central protrusion. “At least one unit or object is at least partially formed integrally with at least one other unit or object” is to be understood in particular to mean that at least one element of the unit or object is formed integrally with at least one further element of the other unit or object. “Integrally” can be understood to mean at least a materially bonded connection, for example by a welding process, a soldering process, an adhesive process, an injection molding process and / or other processes that appear to be meaningful to a person skilled in the art and / or advantageously to mean forming in one piece, for example by manufacturing from a casting and / or by manufacturing using a single-component or multi-component injection molding method and advantageously from a single blank. The handle housing, in particular the end of the handle housing, is preferably arranged at a distance from the drive housing, in particular from the motor housing.

[0058] It is further proposed that the end of the handle housing facing the central protrusion is adapted in terms of shaping to the drive housing, in particular the central protrusion and / or the surface. Advantageously, a particularly large gripping surface for the operator can be achieved while requiring particularly little space. Preferably, the end has two recesses for the central protrusion. It is conceivable that the end has a constant distance from the drive housing in the direction of the drive axis. However, it is also conceivable as an alternative that the spacing of the end from the drive housing in the direction of the drive axis varies.

[0059] It is further proposed that the central projection has a receiving portion for a user interface and / or a communication module. Advantageously, a particularly space-saving arrangement of the user interface can be achieved. Advantageously, the functionality of the handheld power tool device can be expanded in a space-saving manner. Advantageously, a particularly protected and / or safe positioning of the user interface can be achieved. The receiving portion is preferably configured as a recess in the central projection. The user interface has, for example, one or more input elements. The input elements of the user interface can be configured, for example, as buttons, wheels, switches, etc. For example, the handheld power tool can be turned on and / or off and / or the rotational speed of the handheld power tool, preferably a grinding machine, can be adjusted by the user interface, in particular by at least one input element of the user interface. It is conceivable that the user interface has one or more output elements, such as a display, a light-emitting element, in particular an LED, etc. For example, the rotational speed of the handheld power tool, preferably a grinding machine, the charge state of the battery pack, the device state of the handheld power tool, etc. can be output by the user interface, in particular by at least one output element. Preferably, the user interface is preferably connected to the control unit of the handheld power tool, in particular the grinding machine, preferably by wire and / or wirelessly in terms of data technology. The control unit is particularly configured to control the drive unit. The control unit includes in particular at least one processor and a storage element and an operating program stored on the storage element. The storage element is preferably configured as a digital storage medium, such as a hard disk or the like. The receiving unit is preferably arranged on the side of the motor housing that faces away from the bow handle. The receiving unit is particularly arranged on the side of the handle housing that faces away from the battery pack interface of the handheld machine tool. The communication module is particularly configured to communicate with another device, such as a smart phone, a laptop, a server, a cloud, a gateway, etc. Preferably, the communication module is connected to the control unit and / or the user interface in data technology, especially wirelessly and / or wiredly. It is conceivable that the communication module is part of the user interface. However, it is also conceivable that the communication module is constructed and / or arranged separately from the user interface. For example, it is conceivable that the communication module is arranged in the handle housing, especially in the bow handle. It is also conceivable that the communication module is part of the control unit. The communication module can have one or more data transmission technologies, such as Bluetooth, NFC, etc. The control unit is preferably arranged in the handle housing.

[0060] In one aspect of the invention, which aspect can be considered in particular independently of the other aspects of the invention, it is proposed that the drive housing has at least one air outlet, which is at least partially covered by the handle housing, in particular at least in the main outlet direction of the air outlet. Advantageously, a particularly advantageous exhaust gas guidance can be achieved. Advantageously, the operator can be protected from exhaust gases in a particularly effective and / or structurally simple manner. Advantageously, a particularly high operating comfort can be achieved. Preferably, the air outlet is at least partially covered by the handle housing when viewed at least in a plane extending perpendicular to the drive axis. It is conceivable that the handle housing covers the air outlet at least in large part, preferably at least 50%, preferably at least 75% and particularly preferably at least 90%, in particular when viewed in a plane extending perpendicular to the drive axis. It is also conceivable that the handle housing completely covers the air outlet, in particular when viewed in a plane extending perpendicular to the drive axis. The main outlet direction is determined by the arrangement and / or geometry of the air outlet. For example, the main outlet direction extends at least substantially perpendicular to the drive axis and / or extends at an angle to the drive axis, preferably inclined in the direction of the tool receiving portion. The air outlet is preferably covered by the end of the handle housing, in particular viewed in a plane extending perpendicularly to the drive axis. Preferably, the air outlet is arranged above the central projection, preferably with respect to the tool receptacle and / or the surface.

[0061] It is further proposed that the drive housing has, in particular, the previously mentioned motor housing, which is arranged on the central projection and has an air outlet. Advantageously, hot motor exhaust gases can be effectively discharged, while the operator can be particularly effectively protected from the motor exhaust gases. A handheld power tool device with particularly high operating comfort can be provided. Preferably, the motor housing has a plurality of air outlets. These air outlets are arranged, for example, spaced apart from each other in the circumferential direction, which extends in particular in a plane perpendicular to the drive axis.

[0062] It is further proposed that an opening is formed between the end of the handle housing facing the central protrusion and the drive housing for the escape of air from the air outlet. Advantageously, hot motor exhaust air can be effectively discharged while the operator is particularly effectively protected from the motor exhaust air. A handheld power tool device with particularly high operating comfort can be provided. The opening is preferably arranged opposite the top side. The opening is formed in particular by a spaced arrangement of the end of the handle housing and the drive housing, preferably the motor housing.

[0063] In one aspect of the present invention, which aspect can be considered independently of other aspects of the present invention, it is proposed that the drive housing has a closed cable channel. Advantageously, effective protection for the cable connection can be provided. Advantageously, a particularly space-saving and / or protected arrangement of the cable connection can be achieved. It is conceivable that at least a portion of the cable channel, in particular a majority, preferably at least 50%, preferably at least 70%, is surrounded by the handle housing, in particular when viewed in a plane perpendicular to the drive axis. The open end of the cable channel is preferably arranged on the receiving portion. The other open end of the cable channel is preferably arranged in the inner area of ​​the handle housing. The cable channel extends in particular from the receiving portion to the inner area of ​​the handle housing. The cable channel extends, for example, in particular in the direction of the drive axis, over the entire motor housing. Preferably, the handheld machine tool, in particular a grinding machine and / or a handheld machine tool device has an electrical connection unit. The electrical connection unit in particular has at least one electrical connection element, such as a cable. The electrical connection unit, in particular the electrical connection element, is preferably arranged to connect the user interface to the control unit, in particular at least in data technology and / or control technology. Preferably, the user interface can be supplied with electrical energy via the electrical connection unit, preferably via at least one electrical connection element of the electrical connection unit and / or a further electrical connection element. The electrical connection unit, in particular at least one electrical connection element and / or a further electrical connection element, is arranged in the cable channel. The receiving part preferably has at least one electrical connection for the user interface and / or the communication interface. At least the electrical connection element and / or the further electrical connection element is connected to the connection.

[0064] Furthermore, it is proposed that the drive housing has at least two housing shells A cable channel is arranged between the housing shells. Advantageously, a particularly simple assembly of the cable connection in the cable channel can be achieved. Advantageously, a closed cable channel can be provided with a simple structural design and with particularly high comfort when assembling the cable connection. The driver housing has in particular a housing structure comprising two housing shells as half shells. The two housing shells of the driver housing are preferably connected to each other in a driver housing separation plane of the driver housing. The driver housing separation plane preferably extends at least substantially parallel to the separation plane of the handle housing. It is conceivable that the driver housing separation plane corresponds to the separation plane of the handle housing. However, it is also conceivable as an alternative that the driver housing separation plane extends at an angle to the separation plane. Preferably, the cable channel extends within the outer wall of the housing shell, in particular within at least one outer wall of one of the housing shells. Preferably, the cable channel is connected to the contact surface of the outer walls of the two housing shells.

[0065] Furthermore, it is proposed that one of the housing shells forms a groove for the cable duct and the other of the housing shells forms a cover for the cable duct. Advantageously, a closed cable duct can be provided in a simple manner.

[0066] It is further proposed that the cable channel is at least partially arranged on the central projection, in particular in the central projection. Advantageously, a closed cable channel can be realized in a particularly space-saving manner. It is also conceivable that at least a portion of the cable channel, for example at least 5%, 10% or 20% of the cable channel, extends through the central projection.

[0067] Furthermore, a hand-held power tool, in particular a hand-held grinding machine, preferably a hand-held grinding machine, as already mentioned above, is proposed, which has a hand-held power tool device. Advantageously, a hand-held power tool with a particularly small overall height can be provided. A hand-held power tool with particularly advantageous operating characteristics, in particular a particularly large gripping surface for the operator, can be provided.

[0068] It is further proposed that the grinding machine has a tool receiving part, in particular the tool receiving part, for receiving the tool, in particular the tool receiving part, wherein the tool receiving part and / or the tool are spaced apart from the ground in at least one placement and / or resting position. Advantageously, excessive loading of the tool receiving part and / or the tool can be counteracted in at least one placement and / or resting position of the grinding machine. Damage to the tool receiving part and / or the tool, in particular by the ground, can be counteracted. It is possible to comfortably change the tool. Advantageously, a particularly high level of operating comfort can be achieved, in particular when performing tool changes and / or maintenance work, etc., on the tool receiving part.

[0069] It is further proposed that the grinding machine can be placed in at least one placement and / or storage position by means of the support surface alone. Advantageously, the formation of signs of use by contact of the grinding machine, in particular the housing unit, with the ground can be counteracted. Advantageously, the grinding machine can be placed in a particularly protective manner. Preferably, the grinding machine is spaced apart from the ground in at least one placement and / or storage position. In particular, the grinding machine is connected to the ground via the battery pack in at least one placement and / or storage position and can preferably be placed on the ground. In at least one placement and / or storage position, in particular only the support surface on the battery pack is in contact with the ground.

[0070] In addition, it is proposed that the main extension plane of the support surface extends at an angle different from 90° relative to the main extension plane of the tool receiving surface of the tool receiving portion of the grinding machine. Advantageously, a particularly advantageous weight distribution can be achieved with respect to the placement of the grinding machine. Advantageously, a particularly safe placement of the grinding machine can be achieved. Through this inclination of the tool receiving surface, the tool can be particularly comfortably assembled and disassembled in the placement and / or resting position of the grinding machine. Advantageously, a particularly high comfort of use can be achieved. In particular, the main extension axis of the handheld power tool, in particular the grinding machine, extends at an angle different from 90° relative to the main extension plane of the support surface. It is conceivable that the tool receiving surface extends at least substantially parallel to the main extension axis of the handheld power tool, in particular the grinding machine. In particular, the handle axis of the handle housing extends at an angle different from 90° relative to the main extension plane of the support surface in the placement and / or resting position. The handle axis is particularly defined by a bow handle. The handle axis preferably extends in the separation plane and / or in the main extension plane of the handle housing, in particular in the main extension plane of the bow handle. The handle axis corresponds in particular to the main extension axis of the handle tube of the bow handle.

[0071] It is further proposed that the main extension plane of the tool receiving surface and the main extension plane of the support surface enclose an angle of greater than 80°. Advantageously, a particularly safe and space-saving placement of the grinding machine can be achieved. Preferably, the angle enclosed by the main extension plane of the tool receiving surface and the main extension plane of the support surface has a value of less than 90° and greater than 80°. In particular, the tool receiving part, preferably the tool receiving surface, is inclined in the placement and / or resting position in a direction facing away from the ground. Particularly preferably, the angle enclosed by the main extension plane of the tool receiving surface and the main extension plane of the support surface has a value of at least substantially 86°.

[0072] It is further proposed that the normal to the main extension plane of the support surface intersects the center of gravity of the battery pack and the grinding machine. Advantageously, the grinding machine can be placed particularly stably. Preferably, the normal to the main extension plane of the support surface intersects the geometric center of the support surface and / or the center of gravity of the battery pack, in particular at least one vicinity of the geometric center of the support surface and / or a vicinity of the center of gravity of the battery pack. A "vicinity" is to be understood here in particular as a region which has a maximum distance from a reference point, which is preferably less than 7%, preferably less than 5%, of the maximum longitudinal extension of the battery pack.

[0073] It is further proposed that the edge of the battery pack housing of the battery pack forms the support surface. Advantageously, the grinding machine can be placed particularly stably on the ground. Preferably, the edge of the battery pack housing facing away from the tool receptacle forms the support surface. Preferably, the support surface and the support point of the grinding machine form a support plane of a particularly further placement and / or storage position of the support unit.

[0074] Furthermore, it is proposed that the main extension axis of the battery pack extends at least substantially perpendicularly to the main extension axis of the grinding machine. Advantageously, the grinding machine can be placed particularly stably on the ground. Preferably, the edges of the battery pack housing extend at least substantially perpendicularly to the main extension axis of the handheld power tool.

[0075] In addition, it is proposed that the grinding machine has only one bearing point, which is located in the bearing plane, which is preferably already mentioned, in the bearing unit, which is preferably already mentioned, in the bearing plane, which is preferably already mentioned, in the bearing unit, in the bearing plane, which is preferably already mentioned, in the bearing plane ... The support projection is designed, for example, as an elongated web, whose main extension axis extends at least substantially perpendicularly to the main extension axis of the hand-held power tool, the separating plane, the main extension plane of the bow handle and / or the main extension plane of the handle housing. It is also conceivable that the palm grip has at least two projections which are preferably spaced apart from each other when viewed in a direction extending perpendicularly to the separating plane. The invention also provides a support projection on the palm grip, which is preferably located in the support plane of at least one, in particular another, placement and / or resting position. By means of the configuration with at least one support projection on the palm grip, it is possible to place the handheld power tool without a battery pack in an additional placement and / or resting position, in which the handheld power tool can rest on the ground via at least one support projection on the palm grip and another support point on the handle housing, in particular in the area of ​​the battery pack interface. Additionally or alternatively, it is also conceivable to arrange at least one support projection on the handle housing, in particular in the area of ​​the battery pack interface.

[0076] It is further proposed that the support unit is configured to place and / or place the grinding machine on the ground in at least one additional placement and / or resting position, in particular already mentioned above, wherein the battery pack has an additional support surface of the support unit for the additional placement and / or resting position. Advantageously, a particularly high flexibility can be achieved when the grinding machine is safely placed on the ground. For example, the edge of the battery pack forms an additional support surface of the support unit for the additional placement and / or resting position. In the additional placement and / or resting position, the tool receiving surface is preferably at least substantially parallel to the support plane of the additional placement and / or resting position. In the additional placement and / or resting position, the drive axis extends in particular at least substantially perpendicular to the support plane of the additional placement and / or resting position. In the additional placement and / or resting position, in particular the additional support surface and support point of the grinding machine are located in the support plane of the additional placement and / or resting position. In the other placement and / or resting position, the handheld power tool system preferably contacts the ground via a further support surface on the battery pack and a support point on the grinding machine.

[0077] It is further proposed that the shielding unit is arranged to block the emission of light of at least one light source at least in the direction of an arranged operator side. Advantageously, dazzle of the operator can be counteracted when working with the protection device. Particularly safe and / or comfortable work can be achieved with the protection device. The shielding unit is particularly arranged to block the emission of light of at least one light source in a direction facing away from the tool receiving portion. The operator side corresponds in particular to the position of the operator relative to the handheld power tool, in particular the light source, which the operator occupies when machining the workpiece.

[0078] In one aspect of the invention, which aspect can be considered in particular independently of the other aspects of the invention, it is proposed that the protective device has a light source unit. Advantageously, the workpiece can be illuminated particularly precisely during processing. Advantageously, the light source unit can be maintained and / or replaced particularly easily. A particularly high level of operating comfort can be achieved. The light source unit preferably has at least one light source such as those already mentioned above or a plurality of light sources. The light source unit, in particular at least one light source, is preferably arranged on a base body, a shielding unit or a light guide unit.

[0079] In one aspect of the present invention, which aspect can be considered in particular independently of other aspects of the present invention, it is proposed that the protective device has at least one energy source and / or at least one operating element for at least one light source, in particular, as mentioned above. Advantageously, the functionality of the protective device can be expanded. Such a configuration of the protective device enables particularly comfortable work. The energy source can be configured, for example, as a battery, a storage battery, etc. The energy source is particularly provided for supplying energy to the light source, preferably the light source unit. Preferably, the energy source is connected to the light source, in particular the light source unit, at least in one operating state. However, alternatively or additionally, it is also conceivable that the light source, preferably the light source unit, can be supplied with electrical energy by a hand-held machine tool, in particular a grinding machine, for example, by an electrical plug connection between the protective device and the hand-held machine tool. At least one operating element of the protective device is preferably arranged on a base body. At least one operating element of the protective device can be configured, for example, as a button, a rotary wheel, a switch, etc. By means of at least one operating element of the protective device, for example, at least one light source can be switched on and / or off, and / or lighting parameters, such as light color, intensity, etc. can be adjusted.

[0080] In one aspect of the present invention, which aspect can be considered in particular independently of other aspects of the present invention, it is proposed that the protective device has a sensor unit for detecting the operation of the handheld power tool, in particular for activating at least one light source, preferably a light source unit, which has been mentioned above, in particular, during the operation of the handheld power tool. Advantageously, at least one light source can be activated automatically. Advantageously, a particularly high level of user comfort can be achieved. The sensor unit is preferably arranged on a base body, on a shielding unit or on a light guide unit. The sensor unit preferably has at least one sensor element, such as a vibration sensor or the like, for detecting the operation of the handheld power tool. The sensor unit preferably has a control electronics for processing sensor signals. The control electronics is preferably connected to at least one light source, in particular the light source unit, in terms of control technology. The control electronics is particularly configured to switch on the light source when detecting the operation of the handheld power tool. It is conceivable that the control electronics is part of the control unit of the handheld power tool. However, it is also conceivable that the control electronics is constructed separately from the control unit as an alternative.

[0081] In one aspect of the present invention, which aspect can be considered in particular independently of the other aspects of the present invention, it is proposed that the protective device is at least partially composed of a thermoplastic elastomer, in particular has a protective layer composed at least partially of a thermoplastic elastomer. Advantageously, particularly high impact protection can be achieved. A particularly durable protective device can be provided. Preferably, the base body of the protective device is at least partially composed of a thermoplastic elastomer. Preferably, the surface of the protective device, in particular the base body, facing away from the hand-held power tool is composed of a thermoplastic elastomer. The protective layer can be an outer cover buckled on the base body, a layer bonded to the base body, etc. Alternatively or additionally, it is also conceivable to clamp, screw or fix the protective layer to the base body in a similar manner. It is also conceivable that the base body is injection-molded with the protective layer, in particular the protective layer is injection-molded onto the base body, for example using a two-component injection molding method.

[0082] In one aspect of the present invention, which aspect can be considered independently of other aspects of the present invention, it is proposed that a protective device has a fastening unit for releasably fastening to a handheld machine tool, which includes at least two fixed rails extending parallel to each other, and the fixed rail has at least two latching notches. Advantageously, the protective device can be fastened to the handheld machine tool robustly with a simple structural design. The handheld machine tool, in particular the drive housing, preferably the fan housing, in particular has a protective fastening unit corresponding to the fastening unit. The protective fastening unit, for example, has at least one fixed rail. The fixed rail of the protective fastening unit is arranged between the fixed rails of the fastening unit, in particular when the protective device, in particular the substrate is arranged on the handheld machine tool. The fixed rail of the fastening unit and the fixed rail of the protective fastening unit are preferably arranged to be fixed relative to each other along a direction preferably about the axial direction of the drive axis. The protective fastening unit preferably has two latching elements, in particular latching hooks, etc. The latching element is particularly arranged to cooperate with the latching notch of the fastening unit to fasten the protective device, in particular the substrate, to the handheld machine tool. Alternatively, it is also conceivable that the fastening unit and the protective fastening unit are designed interchangeably.

[0083] In one aspect of the invention, which aspect can be considered in particular independently of the other aspects of the invention, it is proposed that the protective device has an asymmetrical basic shape, which is particularly adapted to the dust outlet of the hand-held power tool, in particular the above-mentioned dust outlet. In particular, the shape of the base body along its longitudinal extension deviates from a circular shape in at least one section, preferably in the region of the dust outlet.

[0084] Furthermore, a portable power tool system, in particular as already mentioned above, is proposed, which comprises a portable power tool, in particular as already mentioned above, and a protective device. A particularly effective and / or precise illumination of a workpiece to be processed by means of the portable power tool can be achieved. Such a configuration of the protective device can counteract dazzle for the operator. Advantageously, a particularly high level of operating comfort and / or a particularly high level of operating safety can be achieved.

[0085] The invention also proceeds from a method for producing a protective device, in particular one already mentioned above. It is proposed that the protective device is produced at least partially from a thermoplastic elastomer. Advantageously, a particularly durable protective device can be provided. Advantageously, particularly effective collision protection can be achieved. Preferably, the base body is produced at least partially from a thermoplastic elastomer, for example by a single-component or multi-component injection molding method.

[0086] It is further proposed that the hand-held power tool device has an in particular previously mentioned tool receptacle for receiving in particular previously mentioned tools, in particular grinding devices, wherein the maximum distance of the projection from the drive axis is greater than the maximum distance of the tool receptacle from the drive axis, in particular when viewed in a separating plane of the handle housing.

[0087] Advantageously, a particularly wide support of the drive housing on the handle housing can be achieved. Advantageously, a particularly high stability can be achieved when guiding the hand-held power tool, in particular the hand-held power tool device. Advantageously, particularly precise work with the hand-held power tool device can be achieved. Preferably, the maximum distance of the part of the damping unit on the projection from the drive axis is greater than the maximum distance of the tool receptacle from the drive axis, in particular when viewed in the separating plane of the handle housing.

[0088] It is further proposed that the ratio of the maximum lateral extension of the portion of the damping unit to the minimum distance of the portion of the damping unit from the handle axis of the handle housing is at least 0.9 and at most 1.05. Advantageously, a torque around the handle axis can be particularly effectively supported. Advantageously, a particularly high stability can be achieved. Particularly precise work with the handheld machine tool device can be achieved. The maximum lateral extension of the portion of the damping unit extends in particular at least substantially perpendicular to the main extension plane of the handle housing, preferably the main extension plane of the bow handle and / or the separation plane. The maximum lateral extension of the portion of the damping unit preferably extends at least substantially parallel to the tool receiving surface. The minimum distance of the portion of the damping unit from the handle axis is preferably measured parallel to the separation plane, in particular the main extension plane of the bow handle, preferably the main extension plane of the handle housing. The maximum lateral extension of the portion of the damping unit is preferably at least 40 mm, preferably at least 45 mm. The maximum lateral extension of the portion of the damping unit is preferably at most 60 mm, preferably at most 50 mm. The ratio of the maximum lateral extension of the portion of the damping unit to the maximum height of the grinding machine is preferably at least 0.35, preferably at least 0.4. The ratio of the maximum lateral extension of the damping unit part to the maximum height of the grinding machine is preferably at most 0.5, preferably at most 0.45. The minimum distance of the damping unit part from the handle axis is preferably at least 45 mm, preferably at least 50 mm. The minimum distance of the damping unit part from the handle axis is preferably at most 60 mm, preferably at most 55 mm. However, it is also conceivable that the minimum distance of the damping unit part from the handle axis is less than 45 mm or greater than 60 mm.

[0089] It is further proposed that the ratio of the maximum lateral extension of the part of the damping unit to the minimum distance of the part of the damping unit from the drive axis is at least 0.7, preferably at least 0.73 and at most 0.8, preferably at most 0.77. Advantageously, tilting forces can be supported particularly effectively. A particularly stable hand-held machine tool device can be provided. The minimum distance of the part of the damping unit from the drive axis is preferably measured parallel to the separation plane, in particular the main extension plane of the bow handle, preferably the main extension plane of the handle housing. The minimum distance of the part of the damping unit from the drive axis is preferably at least 55 mm, preferably at least 60 mm. The minimum distance of the part of the damping unit from the drive axis is preferably at most 70 mm, preferably at most 65 mm. However, it is also conceivable that the minimum distance of the part of the damping unit from the drive axis is less than 55 mm or greater than 70 mm.

[0090] In addition, it is proposed that the ratio of the maximum height of the housing unit to the minimum distance of the part of the damping unit on the extension and the handle axis of the handle housing is a maximum of 2.25. A particularly wide support of the drive housing on the handle housing can be achieved. Advantageously, a particularly high stability can be achieved when operating a hand-held power tool, especially a grinding machine. The maximum height of the housing unit preferably extends in the separation plane, especially in the main extension plane of the handle housing, preferably in the main extension plane of the bow handle. The maximum height of the housing unit extends in particular parallel to the drive axis. The maximum height of the housing unit is preferably at least 90 mm, preferably at least 100 mm. The maximum height of the housing unit is preferably a maximum of 120 mm, preferably a maximum of 110 mm. However, alternatively, it is also conceivable that the maximum height of the housing unit is less than 90 mm or greater than 120 mm in the direction of the drive axis. The ratio of the maximum extension dimension of the damping unit in the direction of the drive axis, especially the maximum distance of the damping element in the direction of the drive axis to the maximum height of the housing unit is preferably at least 0.8, preferably at least 0.85. The ratio of the maximum extension of the damping unit in the direction of the drive axis, in particular the maximum distance of the damping element in the direction of the drive axis, to the maximum height of the grinding machine is preferably at least 0.7, preferably at least 0.75. The maximum extension of the damping unit in the direction of the drive axis, in particular the maximum distance of the damping element in the direction of the drive axis, is preferably at least 85 mm, preferably at least 90 mm. However, it is also conceivable that the maximum extension of the damping unit in the direction of the drive axis, in particular the maximum distance of the damping element in the direction of the drive axis, is less than 85 mm.

[0091] In addition, it is proposed that the ratio of the minimum distance of the part of the damping unit to the drive axis in the direction extending perpendicular to the drive axis relative to the maximum longitudinal extension of the housing unit is greater than 0.3. A particularly wide support of the drive housing on the handle housing can be achieved. Advantageously, a particularly high stability can be achieved when operating a hand-held machine tool, especially a grinding machine. The maximum longitudinal extension of the housing unit preferably extends perpendicular to the drive axis. The maximum longitudinal extension of the housing unit preferably extends at least substantially parallel to the tool receiving surface. The maximum longitudinal extension of the housing unit extends in particular in the separation plane, preferably in the main extension plane of the handle housing, especially in the main extension plane of the bow handle. The maximum longitudinal extension of the housing unit is preferably at least 175mm, preferably at least 180mm. The maximum longitudinal extension of the housing unit is preferably a maximum of 190mm, preferably a maximum of 185mm. However, alternatively, it is also conceivable that the maximum longitudinal extension of the housing unit is less than 175mm or greater than 190mm.

[0092] Furthermore, it is proposed that the ratio of the minimum distance between parts of the damping unit and the drive axis to the minimum distance between parts of the damping unit and the handle axis of the handle housing is at least 1.2 and at most 1.3. A handheld power tool device with particularly advantageous support of the drive housing on the handle housing can be provided.

[0093] It is further proposed that the handle housing has, in particular, the aforementioned bow handle, which is supported on the drive housing via parts and / or projections of the damping unit to form a closed grip recess of the bow handle. Advantageously, a particularly effective support of the drive housing on the handle housing can be achieved while simultaneously decoupling the handle housing from the drive housing in vibrations. A particularly high level of operating stability can be achieved with a simultaneously particularly high level of operating comfort.

[0094] It is further proposed that a part of the damping unit and / or the projection is arranged in the direction of the handle axis at the height of the handle recess. A particularly wide support of the drive housing on the handle housing can be achieved. Advantageously, a handheld power tool device with a particularly high stability can be provided while being particularly effective in vibration decoupling. Preferably, the part of the damping unit on the projection and / or the projection is arranged at least substantially completely within the maximum longitudinal extension of the handle recess, viewed in the direction of the handle axis.

[0095] It is further proposed that the part of the damping unit arranged on the extension has at least two damping elements arranged at a distance from each other. Advantageously, a particularly favorable ratio between a stable support of the drive housing on the handle housing and a vibration decoupling of the handle housing from the drive housing can be achieved. The damping elements are preferably arranged on sides of the extension facing away from each other. Preferably, the damping elements are arranged on different sides of a separation plane, in particular a main extension plane of the handle housing, preferably a main extension plane of the bow handle. Preferably, the damping elements are arranged mirror-symmetrically with respect to the separation plane, in particular a main extension plane of the handle housing, preferably a main extension plane of the bow handle. The extension preferably has a damping element receptacle for two damping elements or the damping element receptacle already mentioned above is set for receiving two damping elements.

[0096] In addition, it is proposed that the housing unit has a fan housing, in particular, which has been mentioned before, for receiving the suction fan, in particular, which has been mentioned before, wherein the extension is arranged on the fan housing. Advantageously, a particularly wide support of the drive housing can be achieved. A particularly stable guide of a handheld machine tool, in particular a handheld machine tool device, can be achieved while the drive housing is decoupled from the vibration of the handle housing. The suction fan is in particular a part of a handheld machine tool, preferably a grinding machine. Alternatively, it is also conceivable that the handheld machine tool, in particular the grinding machine, is constructed without a suction fan. Preferably, the extension is at least partially constructed integrally with the fan housing. The extension is in particular arranged on one side of the fan housing facing the battery pack interface. It is conceivable that the extension is preferably arranged between two vibration legs of the tool receiving portion in the case of a handheld machine tool (the handheld machine tool, for example, has a rectangular tool receiving portion) constructed as a vibration grinding device. The vibration leg is in particular made of an elastic material, preferably made of plastic. The vibration leg is preferably connected to the drive housing, in particular to the fan housing.

[0097] In one aspect of the invention, which aspect can be considered in particular independently of the other aspects of the invention, it is proposed that the drive housing has a motor housing, in particular already mentioned, for receiving a drive unit and a fan housing, in particular already mentioned, for receiving a suction fan, in particular already mentioned, wherein the motor housing and the fan housing are at least partially constructed integrally with each other. Advantageously, the tolerance chain can be kept particularly small. A particularly high stability of the drive housing can be achieved. The fan housing and the motor housing have a common housing shell, in particular the housing shell of the drive housing, in particular already mentioned. The two housing shells each have half of the fan housing and half of the motor housing.

[0098] In one aspect of the invention, which aspect can be considered in particular independently of the other aspects of the invention, it is proposed that the drive housing has a motor housing, in particular the one already mentioned, on which at least one damping element of the damping unit is arranged in such a way that the damping element is only partially surrounded by the handle housing when viewed in a section plane through the damping element perpendicular to the drive axis. Advantageously, the support of the handle housing on the drive housing can be realized in the axial direction, in particular with respect to the drive axis, in particular at the outermost part of the handle housing. A particularly effective support can be achieved while decoupling the vibrations. A particularly high stability can be achieved when operating a hand-held power tool, in particular a grinding machine. Preferably, the section plane through the damping element intersects only a part of the end of the handle housing facing the central projection, in particular due to two recesses for the end of the central projection.

[0099] In one aspect of the present invention, which aspect can be considered in particular independently of other aspects of the present invention, it is proposed that the damping unit has at least one sealing element, in particular a sealing ring, in order to prevent exhaust gas from entering the housing unit, in particular the handle housing, wherein the sealing element, in particular the sealing ring, is arranged between the handle housing and the drive housing. Advantageously, the hot motor air can be resisted from flowing into the handle housing. The overheating of the handheld power tool, in particular the grinding machine, can be resisted. It is conceivable that the sealing element is arranged, in particular, configured as a closed sealing ring. The sealing element surrounds the motor housing in a circumferential direction (the circumferential direction extends in particular in a plane extending perpendicular to the drive axis), preferably at least substantially completely, in particular in an angular range of at least 270°, preferably at least 330°, preferably at least 350° and particularly preferably completely. The sealing element preferably at least substantially completely fills the gap between the motor housing and the handle housing. The sealing element is preferably composed of an elastic material, preferably composed of an elastic plastic. The sealing element preferably has a material hardness different from that of the damping element. The material hardness of the sealing element is preferably less than the material hardness of the damping element. Alternatively, it is conceivable that the sealing element and the damping element have the same material hardness. The sealing element is arranged in particular above the at least one air outlet relative to the tool receptacle.

[0100] The handheld machine tool, in particular a grinding machine, a handheld machine tool system, a protective device, a method and / or a handheld machine tool device should not be limited to the above-mentioned applications and embodiments. In particular, the handheld machine tool, in particular a grinding machine, a handheld machine tool system, a method and / or a handheld machine tool device can have a different number of individual elements, components and units and method steps than the number described here in order to meet the working method described here. In addition, in the case of a range of values ​​given in the present disclosure, the values ​​within the limits are also to be regarded as public and as being usable arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] Further advantages are obtained from the following description of the drawings. Two exemplary embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain features in a plurality of combinations. A person skilled in the art will also advantageously consider the individual features individually and combine them into other meaningful combinations.

[0102] The accompanying drawings show:

[0103] Figure 1 : A side view of a handheld machine tool system having a handheld machine tool;

[0104] Figure 2 : Top view of the handheld machine tool system;

[0105] Figure 3 : Front view of the handheld machine tool system;

[0106] Figure 4 : A side view of a handheld machine tool system having a handle housing shell;

[0107] Figure 5 : A cross-sectional view of the hand-held power tool system in a separation plane of a handle housing of the hand-held power tool;

[0108] Figure 6 : A top view of the handheld power tool in a cross-sectional view;

[0109] Figure 7 : A handheld power tool system placed on the ground in a placement and / or resting position;

[0110] Figure 8 : The hand-held power tool system is placed on the ground in another placement and / or resting position;

[0111] Figure 9a : A three-dimensional view of a base body of a protective device of a handheld machine tool system;

[0112] Figure 9b : A top view of the base of the protective device;

[0113] Fig.10a : A three-dimensional view of a portion of a drive housing of a handheld power tool;

[0114] Fig.10b : Top view of the driver housing;

[0115] Fig.11 : A schematic flow chart of a method for manufacturing a handheld machine tool device for a handheld machine tool; and

[0116] Fig.12 : An alternative embodiment of a hand-held power tool system having a hand-held power tool. DETAILED DESCRIPTION

[0117] Figure 1 A handheld power tool system 36a is shown with a handheld power tool 50a, in particular a handheld grinding machine. The handheld power tool 50a is configured as a grinding machine 10a, in particular a battery-powered grinding machine. However, it is also conceivable that the handheld power tool 50a, in particular the grinding machine 10a, is configured as a mains-operated handheld power tool. The grinding machine 10a is configured as an eccentric grinding device. However, it is also conceivable that the grinding machine 10a is configured as a vibration grinding device, a triangular grinding device, a fancy grinding device, etc.

[0118] The handheld power tool 50a has a tool receiving portion 12a for receiving a tool 178a. The tool receiving portion 12a is configured as a grinding pad. The tool receiving portion 12a is configured as a circular grinding pad. However, it is also conceivable that the tool receiving portion 12a is configured as a triangular plate, a four-cornered, preferably rectangular grinding pad or other grinding pads that seem meaningful to a person skilled in the art.

[0119] The tool receiving portion 12a has a fastening device for fastening the tool 178a. The tool receiving portion 12a preferably has a hook and loop surface 180a for fastening the tool 178a. Alternatively or additionally, the fastening device comprises a plurality of hook and loop surfaces, one or more clips, a combination of these or other fastening devices that seem meaningful to those skilled in the art. The tool 178a is configured as a grinding device, for example, as grinding paper, grinding fabric, grinding grid, etc.

[0120] The handheld power tool 50a has a drive unit 14a for driving a tool receptacle 12a. The drive unit 14a has a drive element 182a, preferably an eccentric (see Figure 5 ). The drive element 182a is provided for driving around the drive axis 30a of the drive unit 14a. The handheld machine tool 50a has an output unit 66a. The tool receiving portion 12a is part of the output unit 66a. The output unit 66a has a connecting piece 90a. The connecting piece 90a is arranged, preferably fastened, on the drive element 182a. The tool receiving portion 12a is fastened to the connecting piece 90a in a particularly rotationally fixed manner, for example by means of a screw 184a or the like.

[0121] The output unit 66a has an output axis 186a. The output axis 186a preferably extends at least substantially parallel to the drive axis 30a. The drive axis 30a is spaced apart from the output axis 186a. The connecting member 90a and / or the tool receiving part 12a, in particular the output axis 186a, moves around the drive axis 30a, preferably in a circular manner, in at least one operating state. The drive element 182a is configured to drive the connecting member 90a and / or the tool receiving part 12a, in particular the output axis 186a, for preferably moving in a circular manner around the drive axis 30a of the drive element 182a.

[0122] The connecting member 90a is rotatably fastened to the drive element 182a, in particular rotatably around the output axis 186a. The handheld power tool 50a has at least one bearing element 188a. The connecting member 90a is rotatably supported on the drive element 182a by the bearing element 188a, in particular rotatably around the output axis 186a. The bearing element 188a is preferably arranged between the drive element 182a and the connecting member 90a. The bearing element 188a can be configured as a radial bearing, in particular a rolling bearing, such as a ball bearing or a sliding bearing.

[0123] The drive unit 14a is provided for driving the output unit 66a, in particular the tool receptacle 12a. The drive unit 14a has an electric motor 190a, in particular for driving the drive element 182a.

[0124] The handheld power tool 50a, in particular the grinding machine 10a, has at least one further bearing element 300a. The drive element 182a is rotatably supported, in particular rotatably supported about the drive axis 30a, on a drive housing 54a of the handheld power tool 50a via the further bearing element 300a. The further bearing element 300a can be configured as a radial bearing, in particular a rolling bearing, such as a ball bearing or a sliding bearing.

[0125] The handheld power tool 50a, in particular the grinding machine 10a, has a housing unit 16a. The housing unit 16a has a drive housing 54a for receiving the drive unit 14a. The drive housing 54a is configured as a plastic housing. However, alternatively, it is also conceivable that the drive housing 54a is at least partially configured as a metal housing, such as an aluminum housing, etc.

[0126] The housing unit 16a has a handle housing 52a. The handle housing 52a is configured as a plastic housing. However, alternatively, it is also conceivable that the handle housing 52a is at least partially configured as a metal housing, such as an aluminum housing or the like. The handle housing 52a has two handle housing shells 192a, 194a, which are connected to each other in particular in the separation plane of the handle housing 52a. The handle housing 52a is configured separately from the driver housing 54a, and is in particular arranged spaced apart from the driver housing 54a. The handle housing 52a has a housing structure in particular, with two handle housing shells 192a, 194a as half shells.

[0127] The housing unit 16a has a bow handle 18a. The bow handle 18a is part of the handle housing 52a. The bow handle 18a has a finger grip surface 196a. The bow handle 18a has two walls 198a, in particular side walls, which limit the finger grip surface 196a, in particular in the main extension plane 42a of the bow handle 18a and viewed in a direction perpendicular to the drive axis 30a. The bow handle 18a is configured as a closed bow handle. However, it is also conceivable that the bow handle 18a is configured as an open bow handle. The wall 198a at least partially defines, in particular limits, the handle recess 20a of the bow handle 18a.

[0128] The maximum longitudinal extension 22a of the handle recess 20a extends at least substantially parallel to the tool receiving surface 102a of the tool receiving portion 12a. The maximum longitudinal extension 22a of the handle recess 20a extends in the main extension plane 64a of the handle housing 52a, preferably in the main extension plane 42a of the bow handle 18a, in particular in the separation plane 146a of the handle housing 52a. The tool receiving surface 102a extends at least substantially perpendicular to the separation plane 146a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a.

[0129] The main extension plane 42a of the bow handle 18a coincides with the main extension plane 64a of the handle housing 52a. Alternatively, it is conceivable that the main extension plane 42a of the bow handle 18a is different from the main extension plane 64a of the handle housing 52a. The separation plane 146a coincides with the main extension plane 64a of the handle housing 52a, in particular the main extension plane 42a of the bow handle 18a. However, it is also conceivable that the main extension plane 42a of the bow handle 18a and / or the main extension plane 64a of the handle housing 52a are different from the separation plane 146a.

[0130] The ratio of the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a to the maximum longitudinal extension 24a of the tool receiving part 12a is at least 0.35, preferably at least 0.38. The ratio of the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a to the maximum longitudinal extension 24a of the tool receiving part 12a is at most 0.5, preferably at most 0.45 and preferably at most 0.42. Particularly preferably, the ratio of the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a to the maximum longitudinal extension 24a of the tool receiving part 12a is at least substantially 0.4.

[0131] The maximum longitudinal extension 22a of the handle recess 20a is at least 50 mm, preferably at least 55 mm and particularly preferably at least 60 mm. The maximum longitudinal extension 22a of the handle recess 20a is at most 80 mm, preferably at most 70 mm and particularly preferably at most 75 mm. The maximum longitudinal extension 22a of the handle recess 20a is, for example, at least substantially 61 mm. However, it is also conceivable that the maximum longitudinal extension 22a of the handle recess 20a is greater than 80 mm or less than 50 mm.

[0132] The maximum longitudinal extension 24a of the tool receiving portion 12a corresponds in particular to the maximum diameter of the tool receiving portion surface 102a. The maximum longitudinal extension 24a is, for example, 150 mm, in particular between 148 mm and 152 mm. However, it is also conceivable that the maximum longitudinal extension 24a of the tool receiving portion 12a, in particular the maximum diameter of the tool receiving portion surface 102a, is greater than 150 mm, in particular greater than 152 mm, or less than 150 mm, in particular less than 148 mm.

[0133] The maximum diameter of the tool 178a is greater than the maximum longitudinal extension 24a of the tool receiving portion 12a. However, it is also conceivable that the maximum diameter of the tool 178a is greater than, equal to, or smaller than the maximum longitudinal extension 24a of the tool receiving portion 12a.

[0134] The maximum longitudinal extension 24a of the tool receiving portion 12a extends at least substantially parallel to the maximum longitudinal extension 22a of the handle groove 20a and / or the tool receiving portion face 102a. The maximum longitudinal extension 24a of the tool receiving portion 12a extends in the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a. The maximum longitudinal extension 24a of the tool receiving portion 12a is limited by the maximum longitudinal extension of the tool receiving portion face 102a. The tool 178a is configured to be arranged on the tool receiving portion face 102a. The hook and loop surface 180a corresponds to the tool receiving portion face 102a.

[0135] The handle housing 52a has a palm grip 160a, in particular a ball grip. The palm grip 160a is arranged such that the drive axis 30a intersects the palm grip 160a. The bow grip 18a transitions in particular into the palm grip 160a, preferably adjoins the palm grip 160a.

[0136] The handheld power tool 50a has a suction fan 168a. The suction fan 168a is provided to remove chips formed during machining of the workpiece by suction from the workpiece and in particular blow them away from the dust outlet 44a.

[0137] The housing unit 16a, in particular the fan housing 166a of the drive housing 54a for receiving the suction fan 168a is arranged between the tool receiving portion 12a and the palm grip 160a. The handle housing 52a, in particular the palm grip 160a surrounds the motor housing 78a of the drive housing 54a, preferably at least in a plane extending perpendicular to the drive shaft 30a.

[0138] The grinding machine 10a has a battery pack interface 218a for electrical and / or mechanical connection with the battery pack 38a. The battery pack interface 218a has a guide device, such as one or more guide rails, etc., for guiding the battery pack 38a when assembling and / or removing the battery pack 38a on the battery pack interface 218a. The battery pack interface 218a, in particular the guide device, predetermines the insertion direction for the battery pack 38a when assembling the battery pack 38a on the battery pack interface 218a. The insertion direction is preferably at least substantially perpendicular to the drive axis 30a, the separation plane 146a, the main extension plane 42a of the bow handle 18a and / or the main extension plane 64a of the handle housing 52a. The insertion direction extends at least substantially parallel to the tool receiving surface 102a.

[0139] The battery pack interface 218a is arranged on the handle housing 52a, in particular on the side of the bow grip 18a facing away from the palm grip 160a. The battery pack interface 218a has no interface with the drive axis 30a and / or a main extension plane 232a of the tool receiving surface 102a.

[0140] The handheld power tool 50a has at least one input element 162a. The handheld power tool 50a can be turned on and / or off by the operator actuating the input element 162a. Alternatively or additionally, it is conceivable that the rotation speed of the handheld power tool 50a can be adjusted by means of the input element 162a. The input element 162a can be configured, for example, as a button, a rotary wheel, a switch, etc. The input element 162a is arranged, for example, on the palm grip 160a, preferably on the side of the palm grip 160a facing away from the battery pack interface 218a, the tool receptacle 12a and / or the bow handle 18a.

[0141] The grinding machine 10a is provided for one-handed guidance, in particular by means of the bow handle 18a and the palm grip 160a. However, it is also conceivable that the grinding machine 10a is configured for two-handed guidance, wherein one hand of the operator is arranged on the palm grip 160a and the bow handle 18a.

[0142] The center of gravity 26a of the handheld power tool 50a is arranged in the grip recess 20a. The center of gravity 26a is arranged in the grip recess 20a, at least as viewed in a direction extending perpendicularly to a main extension plane 42a of the bow handle 18a, in particular a main extension plane 64a of the handle housing 52a.

[0143] The minimum distance (not shown here) of the center of gravity 26a from the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a is smaller than the maximum lateral extension 200a of the handle housing 52a from the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a or the main extension plane 42a of the bow handle 18a. It is also conceivable that the center of gravity 26a is arranged in the separation plane 146a of the handle housing 52a, in the main extension plane 64a of the handle housing 52a and / or in the main extension plane 42a of the bow handle 18a.

[0144] A maximum lateral extension 200a of the handle housing 52a, in particular the bow handle 18a, in particular starting from a separating plane 146a of the handle housing 52a, a main extension plane 64a of the handle housing 52a and / or a main extension plane 42a of the bow handle 18a, extends at least substantially perpendicularly to the main extension plane 42a of the bow handle 18a, in particular the main extension plane 64a of the handle housing 52a, the separating plane 64a and / or the drive axis 30a. A maximum lateral extension 200a of the handle housing 52a, in particular the bow handle 18a, in particular starting from a separating plane 146a of the handle housing 52a, a main extension plane 64a of the handle housing 52a and / or a main extension plane 42a of the bow handle 18a, extends at least substantially parallel to the tool receiving surface 102a.

[0145] The ratio of the maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a of the drive unit 14a to the minimum distance 32a between the drive axis 30a and the center of gravity 26a is at least 2.8, preferably at least 3.0, advantageously at least 3.1. The ratio of the maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a of the drive unit 14a to the minimum distance 32a between the drive axis 30a and the center of gravity 26a is at most 3.5, preferably at most 3.2.

[0146] The maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a is at least 30 mm, preferably at least 33 mm, preferably at least 35 mm. The maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a is in particular a maximum of 50 mm, preferably a maximum of 45 mm and particularly preferably a maximum of 40 mm. For example, the maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a is at least substantially 38 mm. However, it is also conceivable that the maximum distance 28a of the tool receiving part 12a from the center of gravity 26a in the direction of the drive axis 30a is less than 30 mm or greater than 50 mm.

[0147] The minimum distance 32a of the drive axis 30a from the center of gravity 26a is in particular at least 8 mm, preferably at least 10 mm. The minimum distance 32a of the drive axis 30a from the center of gravity 26a is in particular at most 20 mm, preferably at most 15 mm. For example, the minimum distance 32a of the drive axis 30a from the center of gravity 26a is at least substantially 38 mm. However, it is also conceivable that the minimum distance 32a of the drive axis 30a from the center of gravity 26a is less than 8 mm or greater than 20 mm.

[0148] A maximum distance 28a of the tool receiving portion 12a from the center of gravity 26a in the direction of the drive axis 30a is defined by the distance of the tool receiving portion surface 102a from the center of gravity 26a in the direction of the drive axis 30a.

[0149] The drive axis 30a extends at least substantially perpendicular to the tool receiving surface 102a. The drive axis 30a extends at least substantially parallel to the main extension plane 64a of the handle housing 52a, in particular the main extension plane 42a of the bow handle 18a and / or the separating plane 146a. The drive axis 30a extends in the main extension plane 64a of the handle housing 52a, in particular the main extension plane 42a of the bow handle 18a and / or the separating plane 146a.

[0150] The minimum distance 32a between the drive axis 30a and the center of gravity 26a extends at least substantially perpendicular to the drive axis 30a. The minimum distance 32a between the drive axis 30a and the center of gravity 26a extends at least substantially parallel to the tool receiving surface 102a, the main extension plane 64a of the handle housing 52a, the main extension plane 42 of the bow handle 18a and / or the separation plane 146a.

[0151] The maximum height 34a of the handheld power tool 50a, in particular the grinding machine 10a, in the direction of the drive axis 30a has a ratio of at least 2.8, preferably at least 3.0, to the maximum distance 28a between the tool holder 12a and the center of gravity 26a in the direction of the drive axis 30a. The ratio of the maximum height 34a of the grinding machine 10a in the direction of the drive axis 30a to the maximum distance 28a between the tool holder 12a and the center of gravity 26a in the direction of the drive axis 30a is at most 3.2, preferably at most 3.1.

[0152] The maximum height 34a of the grinding machine 10a is, for example, at least 100 mm, preferably at least 110 mm. The maximum height 34a of the grinding machine 10a is, for example, at most 130 mm, preferably at most 120 mm. However, it is also conceivable that the maximum height 34a of the grinding machine in the direction of the drive axis 30a is less than 110 mm or greater than 130 mm. The maximum height 34a of the grinding machine in the direction of the drive axis 30a extends from the tool receiving surface 102a parallel to the drive axis 30a to the outermost point of the handle housing 52a.

[0153] The ratio of the maximum height 34a of the grinding machine 10a to the maximum height 202a of the handle recess 20a in a direction extending parallel to the drive axis 30a is at least 4.0, preferably at least 4.3, particularly preferably at least 4.4. The ratio of the maximum height 34a of the grinding machine 10a to the maximum height 202a of the handle recess 20a in a direction extending parallel to the drive axis 30a is at most 5.0, preferably at most 4.7, particularly preferably at most 4.6. The maximum height 34a of the handle recess 20a is, for example, between 20 mm and 30 mm, preferably between 24 mm and 28 mm, and particularly preferably at least substantially 26 mm.

[0154] The handle recess 20a is closed, preferably substantially elliptically closed. The handle recess 20a is closed when viewed in the main extension plane 42a of the bow handle 18a, in the main extension plane 64a of the handle housing 52a and / or in the separating plane 146a. The handle recess 20a is closed by the wall of the drive housing 54a, in particular the fan housing 166a of the drive housing 54a, and the handle housing 52a. Alternatively, it is conceivable that the handle recess 20a is completely closed by the wall of the handle housing 52a.

[0155] The handle recess 20a has an elliptical shape, particularly when viewed perpendicularly to the main extension plane 42a of the bow handle 18a, preferably perpendicularly to the main extension plane 64a of the handle housing 52a. However, it is also conceivable that the handle recess 20a has a rectangular shape, a rectangular shape, a circular shape or another shape that appears to be meaningful to a person skilled in the art, particularly when viewed perpendicularly to the main extension plane 42a of the bow handle 18a, preferably perpendicularly to the main extension plane 64a of the handle housing 52a.

[0156] The handheld power tool system 36a has a battery pack 38a for supplying power to a handheld power tool 50a. The battery pack 38a has a battery pack center of gravity 40a. When arranged on the grinding machine 10a, the battery pack center of gravity 40a is arranged offset from a main extension plane 42a of the handle 18a.

[0157] A minimum distance (not shown here) between the center of gravity 40a of the battery pack and a separation plane 146a of the handle housing 52a, a main extension plane 64a of the handle housing 52a and / or a main extension plane 42a of the bow handle 18a is smaller than a maximum lateral extension dimension 200a of the handle housing 52a, in particular the bow handle 18a, starting from the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a or the main extension plane 42a of the bow handle 18a.

[0158] The minimum distance between the center of gravity of the battery pack 40a and the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a is in particular less than 20 mm, preferably less than 15 mm and preferably less than 10 mm. The minimum distance between the center of gravity of the battery pack 40a and the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a is, for example, at least substantially 8 mm.

[0159] The handheld power tool system 36a has a dust outlet 44a. The dust outlet 44a is arranged on the drive housing 54a, in particular on the fan housing 166a. The battery pack center of gravity 40a and the dust outlet 44a are arranged on different sides of the main extension plane 42a of the bow handle 18a. The center of gravity 26a of the grinding machine 10a and the battery pack center of gravity 40a are arranged on different sides of the main extension plane 42a of the bow handle 18a.

[0160] The hand-held power tool system 36a has a dust collection container 262a, for example a dust box, a dust bag or the like (see Figure 2 The dust collecting container 262a can be fastened in particular detachably to the dust outlet 44a, for example by means of a threaded connection, a latching connection, etc. Alternatively, it is also conceivable that at least one dust outlet connection piece of the dust collecting container 262a is constructed integrally with the dust outlet 44a.

[0161] Dust collecting container 262a is rotatably supported on dust outlet 44a. However, alternatively, it is also conceivable that dust collecting container 262a can be connected to dust outlet 44a in a rotationally fixed manner. Dust collecting container 262a is arranged to receive dust and / or debris preferably sucked off by suction fan 168a.

[0162] Alternatively or additionally, it is conceivable that the dust outlet 44a can be coupled to an active suction device (not shown here), such as a vacuum cleaner or the like, in particular in the case of a portable power tool 50a which is designed without a suction fan 168a. The dust outlet 44a is arranged on one side of the separating plane 146a, the main extension plane 42a of the bow handle 18a and / or the main extension plane 64a of the handle housing 52a.

[0163] The ratio of a minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a to a maximum longitudinal extension 24a of the tool receptacle 12a is at least 0.85 and at most 1.2.

[0164] The minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a extends at least substantially parallel to the tool receiving surface 102a, the main extension plane 42a of the bow handle 18a, the main extension plane 64a of the handle housing 52a and / or the separating plane 146a. The minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a extends at least substantially perpendicularly to the drive axis 30a.

[0165] For example, minimum distance 46a between battery pack center of gravity 40a and drive axis 30a is at least substantially 136 mm in the case of a battery pack 38a with a charge capacity of 4 Ah, at least substantially 148 mm in the case of a battery pack with a charge capacity of 8 Ah, and at least substantially 160 mm in the case of a battery pack with a charge capacity of 12 Ah.

[0166] The ratio of minimum distance 46a between battery pack center of gravity 40a and drive axis 30a when arranged on grinding machine 10a to maximum longitudinal extension 24a of tool receptacle 24a is at least 0.85 and at most 0.95, preferably at least substantially 0.9, for battery pack 38a having a charge capacity of 4 Ah.

[0167] The ratio of minimum distance 46a between battery pack center of gravity 40a and drive axis 30a when arranged on grinding machine 10a to maximum longitudinal extension 24a of tool receptacle 24a is at least 0.95 and at most 1.05, preferably at least substantially 1.0, for battery pack 38a having a charge capacity of 8 Ah.

[0168] The ratio of minimum distance 46a between battery pack center of gravity 40a and drive axis 30a when arranged on grinding machine 10a to maximum longitudinal extension 24a of tool receptacle 24a is at least 1.0 and at most 1.1, preferably at least substantially 1.07 for battery pack 38a having a charge capacity of 12 Ah.

[0169] The overall center of gravity 176a of the handheld power tool system 36a is arranged in the grip recess 20a of the bow handle 18a. The overall center of gravity 176a of the handheld power tool system 36a relates to the handheld power tool 50a with the battery pack 38a and without the dust collection container 262a and / or the protective device 120a. The minimum distance (not shown here) of the overall center of gravity 176a from the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a is smaller than the maximum lateral extension 200a of the handle housing 52a, in particular the bow handle 18a, from the separation plane 146a of the handle housing 52a, the main extension plane 64a of the handle housing 52a and / or the main extension plane 42a of the bow handle 18a. It is conceivable that the total center of gravity 176a is arranged in the separating plane 146a of the handle housing 52a, in the main extension plane 64a of the handle housing 52a and / or in the main extension plane 42a of the bow handle 18a.

[0170] Minimum distance 302a from drive axis 30a to overall center of gravity 176a has a value of at least 55 mm to at least 70 mm, in particular depending on the weight of battery pack 38a. Minimum distance 302a from drive axis 30a to overall center of gravity 176a has a value of at most 65 mm to at most 75 mm, in particular depending on the weight of battery pack 38a.

[0171] The maximum distance 304a of the tool receiving part 12a from the overall center of gravity 176a in the direction of the drive axis 30a has a value of at least 45 mm to at least 50 mm, in particular depending on the weight of the battery pack 38a. The maximum distance 304a of the tool receiving part 12a from the overall center of gravity 176a in the direction of the drive axis 30a has a value of at most 52 mm to at most 55 mm, in particular depending on the weight of the battery pack 38a.

[0172] Preferably, the overall center of gravity 176a of the handheld power tool system 36a, at least with the rechargeable battery pack 38a having a single-layer battery cell assembly, is arranged in the grip recess 20a of the bow handle 18a. The overall center of gravity 176a of the handheld power tool system 36a, with the rechargeable battery pack 38a having a single-layer battery cell assembly, is located such that the handheld power tool 50a can be placed on the tool receptacle 12a, in particular without tilting.

[0173] For example, minimum distance 302a of drive axis 30a from overall center of gravity 176a is at least substantially 60 mm in the case of a battery pack 38a having a charge capacity of 4 Ah and at least substantially 72 mm in the case of a battery pack 38a having a charge capacity of 8 Ah.

[0174] For example, a maximum distance 304a of tool receptacle 12a from overall center of gravity 176a in the direction of drive axis 30a is at least substantially 50 mm in the case of battery pack 38a with a charge capacity of 4 Ah and at least substantially 53 mm in the case of battery pack 38a with a charge capacity of 8 Ah.

[0175] The ratio of the minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a to the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a is at least 2.0 and at most 3.0.

[0176] The ratio of the minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a to the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a is at least 2.0 and at most 2.5, preferably at least substantially 2.2 in the case of a battery pack 38a with a charge capacity of 4 Ah.

[0177] The ratio of the minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a to the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a is at least 2.2 and at most 2.6, preferably at least substantially 2.4 for a battery pack 38a having a charge capacity of 8 Ah.

[0178] The ratio of the minimum distance 46a between the center of gravity 40a of the battery pack and the drive axis 30a when arranged on the grinding machine 10a to the maximum longitudinal extension 22a of the grip recess 20a of the bow handle 18a is at least 2.4 and at most 2.8, preferably at least substantially 2.6 for a battery pack 38a having a charge capacity of 12 Ah.

[0179] The handheld power tool 50a has a handheld power tool device 48a, in particular a handheld grinding machine device. The handheld power tool device 48a has a housing unit 16a.

[0180] The drive housing 54a predetermines the drive axis 30a of the drive unit 14a. In particular, the motor housing 78a predetermines the drive axis 30a. The motor housing 78a has a motor receptacle, in the central longitudinal axis of which the motor axis 260a is located. The drive axis 30a is defined by the motor axis 260a. The central longitudinal axis in particular coincides with the drive axis 30a. The drive housing 54a is coupled to the handle housing 52a.

[0181] The driver housing 54a has a central projection 60a on the surface 56a of the upper side 58a of the driver housing 54a, which is raised relative to the surface 56a. The end 62a of the handle housing 52a is arranged above the central projection 60a. The central projection 60a descends to the surface 56a in two directions starting from the main extension plane 64a of the handle housing 52a and extending perpendicularly to the main extension plane 64a of the handle housing 52a.

[0182] Two screw seats 280a of the driver housing 54a are arranged on the side wall 278a of the central projection 60a. The central projection 60a protrudes in particular in the radial direction with respect to the drive axis 30a, wherein another screw seat 282a of the driver housing 54a is arranged in the protruding area of ​​the central projection 60a.

[0183] The maximum lateral extension 306a of the center protrusion 60a is smaller than the maximum total lateral extension 204a of the handle housing 52a. The maximum lateral extension 306a of the center protrusion 60a extends at least substantially perpendicular to the main extension plane 42a of the bow handle 18a, the main extension plane 64a of the handle housing 52a, the separation plane 146a and / or the drive shaft 30a. The maximum lateral extension 306a of the center protrusion 60a extends at least substantially parallel to the tool receiving portion face 102a of the tool receiving portion 12a. The maximum lateral extension 306a of the center protrusion 60a is smaller than the maximum lateral extension 206a of the handle housing 52a at the end 62a of the center protrusion 60a arranged above the center protrusion 60a (see Figure 3 ). The end 62a of the handle housing 52a is arranged above the central protrusion 60a with respect to the tool receiving portion 12a and / or the surface 56a.

[0184] The central projection 60a has a main extension axis 208a. The main extension axis 208a of the central projection 60a extends at least substantially perpendicular to the drive axis 30a. The main extension axis 208a of the central projection 60a extends at least substantially parallel to the main extension plane 42a of the bow handle 18a, the main extension plane 64a of the handle housing 52a, the separation plane 146a, and / or the tool receiving surface 102a. The main extension axis 208a of the central projection 60a extends in the main extension plane 42a of the bow handle 18a, the main extension plane 64a of the handle housing 52a, and / or the separation plane 146a.

[0185] The central projection 60a extends, in particular, at least in the direction of the main extension axis 208a of the central projection 60a, over a large part of the surface 56a, preferably over at least 50%, preferably at least 75% and particularly preferably over 90% of the surface 56a. The upper side 58a, preferably the surface 56a, is arranged facing away from the tool receiving portion 12a. The central projection 60a has a curvature in the longitudinal direction, in particular in the direction of the main extension axis 208a of the central projection 60a, preferably a curvature matching the surface 56a. However, it is also conceivable that the central projection 60a is configured without curvature in the longitudinal direction.

[0186] The handle housing 52a at least partially covers the central protrusion 60a on both sides along an axis extending perpendicular to the main extension plane 64a of the handle housing 52a. The handle housing 52a covers the central protrusion 60a at least 10% in height on both sides along the direction extending perpendicular to the main extension plane 64a of the handle housing 52a. It is also conceivable that the handle housing 52a covers the central protrusion 60a in height on both sides in the direction extending perpendicular to the main extension plane 64a of the handle housing 52a, in particular at least 50%, preferably at least 70% and preferably at least 90%. The central protrusion 60a is not covered by the handle housing 52a in the longitudinal direction.

[0187] The end 62a of the handle housing 52a facing the central projection 60a, in particular the end 62a already mentioned above, which preferably substantially surrounds the end 62a of the driver housing 54a in an annular manner, is arranged spaced apart from the driver housing 54a, in particular radially and axially spaced apart. The end 62a is arranged spaced apart from the surface 56a.

[0188] The motor housing 78a is arranged on the central projection 60a. The end 62a surrounds the motor housing 78a in an annular shape. The motor housing 78a is arranged on the side of the central projection 60a facing away from the tool receiving portion 12a, and is particularly arranged above the central projection 60a with respect to the tool receiving portion 12a. The motor housing 78a is surrounded by the handle housing 52a in a plane perpendicular to the drive axis 30a. The motor housing 78a is at least substantially completely surrounded by the handle housing 52a in a radial direction from the drive axis 30a. The motor housing 78a is at least partially constructed integrally with the central projection 60a. The handle housing 52a, in particular the end 62a of the handle housing 52a, is arranged spaced apart from the drive housing 54a, in particular the motor housing 78a.

[0189] The end 62a of the handle housing 52a facing the central protrusion 60a is matched to the driver housing 54a, in particular the central protrusion 60a and / or the surface 56a in terms of forming technology. The end 62a has two grooves 210a for the central protrusion 60a. It is conceivable that the end 62a has a constant distance from the driver housing 54a in the direction of the drive axis 30a. However, it is also conceivable that the distance between the end 62a and the driver housing 54a in the direction of the drive axis 30a changes.

[0190] The central projection 60a has a receiving portion 68a for a user interface 70a. Alternatively or additionally, it is conceivable that the central projection 60a has a receiving portion 68a for a communication module 72a. The user interface 70a and / or the communication module 72a are part of the handheld power tool 50a, in particular the grinding machine 10a, preferably the handheld power tool device 48a.

[0191] The communication module 72a may include one or more data transmission technologies, for example Bluetooth, NFC, etc. Alternatively, it is conceivable that the handheld power tool 50a, in particular the handheld power tool device 48a, is designed without a communication module 72a.

[0192] The receiving portion 68a is designed as a recess in the central projection 60a. The receiving portion 68a is arranged on the side of the motor housing 78a facing away from the bow handle 18a. The receiving portion 68a is arranged on the side of the handle housing 52a facing away from the battery pack interface 218a of the handheld power tool 50a. The battery pack interface 218a is arranged on the side of the handheld power tool 50a, in particular the grinding machine 10a, facing away from the user interface 70a.

[0193] The user interface 70a has, for example, two input elements 212a. However, it is also conceivable that the user interface 70a has only one input element 212a or more than two input elements 212a. The input elements 212a of the user interface 70a are configured as buttons, for example. It is conceivable that at least one of the input elements 212a is configured as a rotary wheel, a switch, etc. For example, the handheld power tool 50a can be turned on and / or off via the user interface 70a, in particular the input element 212a; the rotation speed of the handheld power tool 50a, preferably the grinding machine 10a, can be adjusted, etc.

[0194] The user interface 70a has, for example, five output elements 214a. Alternatively, it is conceivable that the user interface 70a has less than or more than five output elements 214a. The output elements 214a are configured as light-emitting elements, in particular LEDs. Alternatively, it is conceivable that at least one of the output elements 214a is configured as a display or the like. For example, the rotation speed of the handheld power tool 50a, preferably the grinding machine 10a, the charging state of the battery pack 38a, the tool state of the handheld power tool 50a, etc., are output via the user interface 70a, in particular via at least one of the output elements 214a.

[0195] The user interface 70a is connected to the handheld power tool 50a, in particular the control unit 216a of the grinding machine 10a, preferably by wire and / or wirelessly in terms of data technology. The control unit 216a is provided for controlling the drive unit 14a. The control unit 216a comprises in particular at least one processor and a storage element and an operating program stored on the storage element. The storage element is configured as a digital storage medium, for example, as a hard disk, etc. The control unit 216a is arranged in the handle housing 52a.

[0196] The communication module 72a is provided for communication with another device, such as a smartphone, a laptop, a server, a cloud, a gateway, etc. The communication module 72a is connected to the control unit 216a and / or the user interface 70a in terms of data technology, in particular wirelessly and / or by wire.

[0197] The communication module 72a is constructed and arranged in particular separately from the user interface 70a. The communication module 72a is arranged in the handle housing 52a, in particular the bow handle 18a, for example. The communication module 72a is arranged between the motor housing 78a and the battery pack interface 218a. The communication module 72a is arranged on one side of the handle housing 52a, on which the battery pack interface 218a is arranged. It is also conceivable that the communication module 72a is part of the control unit 216a. Alternatively, it is conceivable that the communication module 72a is arranged in the support 220a of the handle housing 52a on the drive housing 54a or in other positions that seem meaningful to those skilled in the art. In addition, it is also conceivable that the communication module 72a is part of the user interface 70a.

[0198] The handheld power tool 50a has a plurality of cooling air inlets 266a. Alternatively, it is conceivable that the handheld power tool 50a has only one cooling air inlet 266a. The cooling air inlet 266a is arranged on the handle housing 52a, in particular the bow handle 18a, for example. The cooling air inlet 266a is arranged on the wall of the handle housing 52a that delimits the handle groove 20a. The cooling air inlet 266a is arranged on the wall of the handle housing 52a that faces the tool receiving portion 12a and delimits the handle groove 20a. Alternatively, it is also conceivable that the cooling air inlet 266a is arranged on the wall of the handle housing 52a that delimits the handle groove 20a adjacent to the battery pack interface 218a. However, it is also conceivable that the cooling air inlet 266a is arranged on the drive housing 54a or on other positions on the handle housing 52a that appear to be meaningful to those skilled in the art.

[0199] The handheld power tool 50a has a motor fan 268a. The motor fan 268a is arranged in the drive housing 54a, in particular in the motor housing 78a. The motor fan 268a is provided for cooling the drive unit 14a, in particular the electric motor 190a. It is also conceivable that the control unit 216a can be cooled by means of the motor fan 268a. The motor fan 268a is particularly provided for sucking in ambient air through the cooling air inlet 266a. The motor fan 268a can be driven by the drive unit 14a.

[0200] The drive housing 54a has a plurality of air outlets 74a, which are at least partially covered by the handle housing 52a, in particular at least viewed in the corresponding main outlet direction 76a of the air outlet 74a. However, it is also conceivable as an alternative that the drive housing 54a has only one air outlet 74a, which is at least partially covered by the handle housing 52a, in particular at least viewed in the main outlet direction 76a of the air outlet 74a. The motor fan 268a is provided to guide the air sucked in through the cooling air inlet 266a through the drive unit 14a to the air outlet 74a and in particular to blow the motor exhaust air away from the air outlet 74a.

[0201] The handle housing 52a has no air outlet. The drive housing 54a, in particular the motor housing 78a, has a cooling air inlet 270a. The cooling air inlet 270a of the motor housing 78a is arranged on the side of the motor housing 78a facing away from the tool receiving portion 12a. The cooling air inlet 270a of the motor housing 78a is arranged in the handle housing 52a, in particular in the palm grip 160a. Through the cooling air inlet 270a of the motor housing 78a, the cooling air sucked through the cooling air inlet 270a on the handle housing 52a can be introduced into the motor housing 78a.

[0202] The air outlet 74a is at least partially covered by the handle housing 52a, at least when viewed in a plane extending perpendicular to the drive axis 30a. It is conceivable that the handle housing 52a covers the air outlet 74a at least to a large extent, preferably at least 50%, preferably at least 75% and particularly preferably at least 90%, especially when viewed in a plane extending perpendicular to the drive axis 30a. It is also conceivable that the handle housing 52a completely covers the air outlet 74a, especially when viewed in a plane extending perpendicular to the drive axis 30a. The air outlet 74a covers the end 62a of the handle housing 52a, especially when viewed in a plane extending perpendicular to the drive axis 30a.

[0203] The motor housing 78a has an air outlet 74a. The air outlet 74a is arranged above the central projection 60a with respect to the tool receptacle 12a and / or the surface 56a. The air outlets 74a are arranged spaced apart from each other in the circumferential direction, for example, which extends in a plane perpendicular to the drive axis 30a.

[0204] Main exit direction 76a (at Figure 4 1 , the main outlet direction 76a of only one of the air outlets 74a is shown by way of example, and is determined by the arrangement and / or geometry of the corresponding air outlet 74a. The main outlet direction 76a here, for example, extends at least substantially perpendicularly to the drive axis 30a. However, it is also conceivable that the main outlet direction 76a extends at an angle to the drive axis 30a, preferably inclined in the direction of the tool receptacle 12a.

[0205] An opening 80a for air to escape from the air outlet 74a is formed between the end 62a of the handle housing 52a facing the central protrusion 60a and the driver housing 54a. The opening 80a is arranged opposite the upper side 58a. The opening 80a is formed by the spaced arrangement of the end 62a of the handle housing 52a and the driver housing 54a, preferably the motor housing 78a.

[0206] The drive housing 54a has a closed cable channel 82a. At least a portion, in particular a majority, preferably at least 50%, preferably at least 70% of the cable channel 82a is covered by the handle housing 52a, in particular when viewed in a plane perpendicular to the drive axis 30a.

[0207] The open end 222a of the cable channel 82a is arranged on the receiving portion 68a. The other open end 224a of the cable channel 82a is arranged in the inner area 226a of the handle housing 52a. The cable channel 82a extends from the receiving portion 68a into the inner area 226a of the handle housing 52a. The cable channel 82a extends through the entire motor housing 78a, in particular in the direction of the drive axis 30a.

[0208] The handheld power tool 50a and / or the handheld power tool device 48a have an electrical connection unit (not shown here). The electrical connection unit has at least one electrical connection element, for example a cable. The electrical connection unit, in particular the electrical connection element, is provided for connecting the user interface 70a to the control unit 216a, in particular at least in terms of data technology and / or control technology. The user interface 70a can be supplied with electrical energy via the electrical connection unit, preferably via at least one electrical connection element of the electrical connection unit and / or a further electrical connection element.

[0209] The cable channel 82a is provided for receiving at least a part of the electrical connection unit, in particular at least one electrical connection element and / or another electrical connection element. The electrical connection unit, in particular at least one electrical connection element and / or another electrical connection element, is at least partially arranged in the cable channel 82a. The receiving portion 68a has at least one electrical connector (not shown here) for the user interface 70a. At least the electrical connection element and / or another electrical connection element is connected to the connector.

[0210] The driver housing 54a has at least two housing shells 84a, 86a. The driver housing 54a has a housing structure that includes two housing shells 84a, 86a as half shells. The two housing shells 84a, 86a of the driver housing 54a are connected to each other in the driver housing separation plane 228a of the driver housing 54a. The driver housing separation plane 228a extends at least substantially parallel to the separation plane 146a of the handle housing 52a. It is conceivable that the driver housing separation plane 228a corresponds to the separation plane 146a of the handle housing 52a. However, it is also conceivable that the driver housing separation plane 228a extends at an angle to the separation plane 146a.

[0211] A cable channel 82a is arranged between the housing shells 84a, 86a. The cable channel 82a extends in the outer walls of the housing shells 84a, 86a, in particular in at least one outer wall of one of the housing shells 84a, 86a. The cable channel 82a is connected to the contact surface of the outer walls of the two housing shells 84a, 86a. One of the housing shells 84a, 86a has a groove 88a for the cable channel 82a. The other housing shell 86a of the housing shells 84a, 86a forms a cover for the cable channel 82a (not shown here).

[0212] The cable channel 82a is at least partially arranged on the central protrusion 60a, in particular in the central protrusion. It is conceivable that at least a portion of the cable channel 82a extends through the central protrusion 60a, for example at least 5%, 10% or 20% of the cable channel 82a.

[0213] Handheld power tool system 36a has a support unit 92a which is designed to place and / or place grinding machine 10a on a floor surface 94a in at least one placement and / or resting position, wherein battery pack 38a has a support surface 96a of support unit 92a for the at least one placement and / or resting position. Figure 7 The handheld power tool system 36a is shown in a storage and / or resting position.

[0214] The support surface 96a is, for example, a continuous surface, which in particular in at least one placement and / or resting position rests on the ground surface 94a. The support surface 96a is, for example, a flat surface. The ground surface 94a can be, for example, a floor, a table, etc. The battery pack 38a has, in particular, a battery pack housing 112a. The battery pack housing 112a has a support surface 96a.

[0215] Battery pack 38a has a handheld power tool interface 230a for electrical connection to a handheld power tool 50a, in particular a grinding machine 10a. Handheld power tool interface 230a is provided for being arranged on battery pack interface 218a. Support surface 96a is arranged on the side of battery pack 38a facing away from handheld power tool interface 230a.

[0216] The tool receiving portion 12a and / or the tool 178a are spaced apart from the ground 94a in the placement and / or rest position when the tool 178a is arranged on the tool receiving portion 12a. The grinding machine 10a can be placed alone via the support surface 96a in the placement and / or rest position. The grinding machine 10a is spaced apart from the ground 94a in the placement and / or rest position. The grinding machine 10a is connected to the ground 94a via the battery pack 38a in the placement and / or rest position and can preferably be placed on the ground 94a. In the placement and / or rest position, only the support surface 96a on the battery pack 38a of the handheld power tool system 36a is in contact with the ground 94a.

[0217] The main extension plane 98a of the support surface 96a extends at an angle 104a different from 90° to the main extension plane 232a of the tool receiving surface 102a of the tool receiving portion 12a. The main extension axis (not shown here) of the handheld power tool 50a, in particular the grinding machine 10a, and the main extension plane 98a of the support surface 96a extend at an angle different from 90° in the placement and / or rest position. The tool receiving surface 102a extends at least substantially parallel to the main extension axis of the handheld power tool 50a, in particular the grinding machine 10a. Alternatively, it is also conceivable that the tool receiving surface 102a extends at an angle to the main extension axis of the handheld power tool 50a, in particular the grinding machine 10a.

[0218] In particular, the handle axis 152a of the handle housing 52a extends at an angle different from 90° to the main extension plane 98a of the support surface 96a in the placement and / or rest position. The handle axis 152a is defined by the bow handle 18a. The handle axis 152a extends in the separating plane 146a and / or in the main extension plane 64a of the handle housing 52a, in particular in the main extension plane 42a of the bow handle 18a. The handle axis 152a corresponds to the main extension axis of the handle tube 234a of the bow handle 18a.

[0219] The main extension plane 232a of the tool receiving surface 102a and the main extension plane 98a of the support surface 96a enclose an angle 104a of greater than 80°. The angle 104a enclosed by the main extension plane 232a of the tool receiving surface 102a and the main extension plane 98a of the support surface 96a has a value less than 90° and greater than 80°. Particularly preferably, the angle 104a enclosed by the main extension plane 98a of the support surface 96a and the main extension plane 232a of the tool receiving surface 102a has a value of at least substantially 86°.

[0220] The tool receptacle 12a, preferably the tool receptacle surface 102a, is inclined in the placement and / or resting position away from the ground surface 94a. A normal 106a to a main extension plane 98a of the support surface 96a intersects the center of gravity 26a of the battery pack 38a and the grinding machine 10a.

[0221] Support unit 92a is designed to place and / or place grinding machine 10a on floor surface 94a in at least one further placement and / or storage position, wherein battery pack 38a has a further support surface 108a of support unit 92a for the further placement and / or storage position. Figure 8 The hand-held power tool system 36a is shown in a further placement and / or resting position.

[0222] In the other placement and / or resting position, the tool receiving surface 102a is at least substantially parallel to the support plane 116a of the other placement and / or resting position and / or the flat ground surface 94a. In the other placement and / or resting position, the drive axis 30a is at least substantially perpendicular to the support plane 116a of the other placement and / or resting position. The edge 110a of the battery pack housing 112a of the battery pack 38a forms the other support surface 108a. The edge 110a is arranged facing away from the tool receiving portion 12a.

[0223] A main extension axis 118a of battery pack 38a extends at least substantially perpendicularly to a main extension axis of grinding machine 10a. An edge 110a of battery pack housing 112a extends at least substantially perpendicularly to a main extension axis of handheld power tool 50a, in particular grinding machine 10a.

[0224] The grinding machine 10a has only one bearing point 114a, which is located in a bearing plane 116a of another placement and / or resting position. The bearing point 114a is located on the handle housing 52a. Alternatively, it is also conceivable that the bearing point 114a is located on the drive housing 54a. The bearing point 114a of the grinding machine 10a is arranged on the side of the handle housing 52a facing away from the tool receiving portion 12a. The bearing point 114a is located on the surface 264a of the palm grip 160a. The palm grip 160a has a round shape. The surface 264a of the palm grip 160a (the bearing point 114a is arranged on it) is curved. However, it is also conceivable that the surface 264a of the palm grip 160a (the bearing point 114a is arranged on it) is flat.

[0225] In the other placement and / or rest position, the other support surface 108a and the support point 114a of the grinding machine 10a are located in the support plane 116a of the other placement and / or rest position. In the other placement and / or rest position, the handheld power tool system 36a is in contact with the ground surface 94a via the other support surface 108a on the battery pack 38a and the support point 114a on the grinding machine 10a.

[0226] The handheld power tool device 48a has the previously mentioned protective device 120a, in particular a wall protection ring, for collision protection of a tool 178a and / or a tool receiving portion 12a that can be arranged on the handheld power tool 50a with an object in the working environment of the handheld power tool 50a. The protective device 120a is in particular configured as a protective ring. The protective device 120a is preferably set as a buffer for the handheld power tool 50a. In particular, the protective device 120a is provided to resist collision of the tool receiving portion 12a and / or the tool 178a arranged on the tool receiving portion 12a with a wall or the like in the working environment.

[0227] The protective device 120a has a shielding unit 122a and / or a light-conducting unit 124a for at least one light source 132a.

[0228] The protective device 120a is arranged on the driver housing 54a in at least one operating state. The protective device 120a is configured to be arranged on the fan housing 166a. The shielding unit 122a is configured to shield an area from light incident on at least one light source 132a. The shielding unit 122a has a plurality of shielding elements 100a. Alternatively, it is also conceivable that the shielding unit 122a has only one shielding element 100a. The shielding element 100a is configured as a light-proof component. It is also conceivable that the shielding element 100a is configured as a reflector, such as a mirror, etc.

[0229] The protective device 120a has a base body 236a. The base body 236a has a plurality of windows 276a. The operator can see the workpiece through the windows 276a when machining the workpiece. However, it is also conceivable that the base body 236a is configured without windows 276a.

[0230] The shielding unit 122a, in particular the shielding element 100a, is designed integrally with the base body 236a. The shielding unit 122a, in particular the shielding element 100a, is formed by the base body 236a of the protective device 120a.

[0231] Alternatively, it is also conceivable that the shielding unit 122a, in particular the shielding element 100a, is constructed separately from the base 236a. In particular, it is alternatively conceivable that the shielding unit 122a, preferably the shielding element 100a, can be fastened, preferably releasably fastened, on the base 236a. It is also conceivable that the shielding unit 122a, in particular the shielding element 100a, can be adjustably arranged on the base 236a, preferably in order to adapt the shielding area by the shielding unit 122a.

[0232] The light guide unit 124a is arranged on the base body 236a. The light guide unit 124a has three light guide elements 238a, for example. Alternatively, it is conceivable that the light guide unit 124a has more or less than three light guide elements 238a. The light guide unit 124a is provided for guiding and / or emitting light of at least one light source 132a. The light guide element 238a is configured as a transparent fiber, tube or rod, for example. The light guide element 238a is configured as an emitting element, in particular a light scattering element, for example in the form of sandblasted, scattering glass, plastic or ceramic sheets, scattering plastic films, etc.

[0233] The shielding unit 122a is configured to block light emission from at least one light source 132a at least in the direction of the operator. The shielding unit 122a is configured to block light emission from at least one light source 132a in a direction away from the tool receiving portion 12a.

[0234] It is conceivable that the protective device 120a has a light source unit 126a. The light source unit 126a has, for example, two light sources 132a. Alternatively, it is also conceivable that the light source unit 126a has a different number of light sources 132a than two, for example, only one light source 132a or more than two light sources 132a. In addition, it is alternatively conceivable that the protective device 120a is configured without a light source unit 126a. The light source unit 126a, in particular the light source 132a, is arranged on the base body 236a. The light source 132a is, for example, configured as an LED, an incandescent lamp, or other light emitting devices that seem meaningful to a person skilled in the art. Alternatively, it is also conceivable that the handheld power tool 50a has at least one of the light sources 132a.

[0235] It is also conceivable that the protective device 120a has at least one energy source 128a for at least one light source 132a. The protective device 120a has two energy sources 128a here, for example. One of the energy sources 128a is respectively assigned to the light sources 132a. However, it is also conceivable as an alternative that the protective device 120a has only one energy source 128a or more than two energy sources 128a or is configured without an energy source 128a. The energy source 128a is configured, for example, as a battery, an accumulator, etc.

[0236] The energy source 128a is provided for supplying energy to a corresponding light source 132a, in particular a light source unit 126a. The energy source 128a is connected to the light source 132a, in particular the light source unit 126a, at least in one operating state. However, it is also conceivable, alternatively or additionally, that the light source 132a, in particular the light source unit 126a, can be supplied with electrical energy via the handheld power tool 50a, in particular the grinding machine 10a, for example via an electrical plug connection between the protective device 120a and the handheld power tool 50a.

[0237] The protective device 120a has, for example, an operating element 130a for a light source 132a, in particular a light source unit 126a. At least one operating element 130a is arranged on the base body 236a. The at least one operating element 130a can be configured, for example, as a button, a rotary wheel, a switch, etc. The at least one operating element 130a can, for example, be turned on and / or off the light source 132a and / or lighting parameters, such as light color, intensity, etc., can be adjusted.

[0238] Furthermore, it is conceivable that the safety device 120a has a sensor unit 134a for detecting the operation of the handheld power tool 50a, in particular for activating the at least one light source 132a during the operation of the handheld power tool 50a.

[0239] The sensor unit 134a is arranged on the base body 236a. The sensor unit 134a has at least one sensor element (not shown here), such as a vibration sensor, etc., for detecting the operation of the handheld power tool 50a, in particular the grinding machine 10a. The sensor unit 134a has a control electronics (not shown here) for processing the sensor signal. The control electronics is connected to the light source 132a in terms of control technology. The control electronics is configured to switch on the light source 132a when detecting the operation of the handheld power tool 50a. It is conceivable that the control electronics is part of the control unit 216a of the handheld power tool 50a. However, it is also conceivable that the control electronics is constructed separately from the control unit 216a.

[0240] The protective device 120a is at least partially made of a thermoplastic elastomer. The base body 236a is at least partially made of a thermoplastic elastomer. The protective device 120a, in particular at least one surface 240a of the base body 236a facing away from the handheld power tool 50a, is made of a thermoplastic elastomer.

[0241] It is also conceivable that the protective device 120a has a protective layer that is at least partially composed of a thermoplastic elastomer. The protective layer can be a cover that is buckled onto the base body 236a, a layer that is bonded to the base body 236a, etc. Alternatively or additionally, it is also conceivable that the protective layer is clamped, screwed, or fixed to the base body 236a in a similar manner. In addition, it is also conceivable that the base body 236a is encapsulated by the protective layer by injection molding, in particular the protective layer is injection molded onto the base body 236a, for example, using a two-component injection molding method.

[0242] The protective device 120a has a fastening unit 284a for releasable fastening to the handheld power tool 50a (see Figure 9a and 9b The fastening unit 284a has two pairs of fixing rails 286a extending parallel to each other. The fixing rails 286a each have a locking notch 288a.

[0243] The handheld power tool 50a, in particular the drive housing 54a, preferably the fan housing 166a, has a protective fastening unit 290a corresponding to the fastening unit 284a (see Fig.10a and 10b ).

[0244] The protection fastening unit 290a has two fixing rails 292a. The fixing rails 292a of the protection fastening unit 290a are arranged between the fixing rails 286a of the fixing unit 284a when the protection device 120a is arranged on the handheld power tool 50a. The fixing rails 286a of the fixing unit 284a and the fixing rails 292a of the protection fastening unit 290a are arranged to be fixed relative to each other in a direction preferably axial to the drive axis 30a. The protection fastening unit 290a has two latching elements 294a, in particular latching hooks, etc. The latching element 294a is arranged to cooperate with the latching notch 288a of the fastening unit 284a for fastening the protection device 120a to the handheld power tool 50a.

[0245] The guard 120a has an asymmetrical basic shape that is particularly adapted to the dust outlet 44a of the handheld power tool 50a. The shape of the main body 236a deviates from a circle in at least one section along its longitudinal extension, preferably in the region of the dust outlet 44a.

[0246] The handheld power tool device 48a has a damping unit 136a, which couples the driver housing 54a with the handle housing 52a. The driver housing 54a has an extension 138a extending at least radially with respect to the drive axis 30a. At least a portion 140a of the damping unit 136a is arranged on the extension 138a. The housing shells 84a, 86 are screwed to each other on the extension 138a, in particular by screw seats 274a of the housing shells 84a, 86a. The screw seats 272a of the handle housing shells 192a, 194a in the region of the extension 138a are arranged spaced apart from the screw seats 274a of the housing shells 84a, 86a.

[0247] The damping unit 136a has a plurality of damping elements 164a, 170a, 246a, 248a. The damping elements 164a, 170a, 246a, 248a are made of at least one elastic material, in particular an elastic plastic. The damping elements 164a, 170a, 246a, 248a can be configured as blocks, rings, ring segments, plates, or the like.

[0248] At least a portion of the damping elements 164a, 170a, 246a, 248a is fixed between the driver housing 54a and the handle housing 52a by clamping. It is also conceivable that the damping elements 164a, 170a, 246a, 248a have an adhesive layer for fastening to the driver housing 54a and / or to the handle housing 52a. Additionally or alternatively, it is conceivable that at least a portion of the damping elements 164a, 170a, 246a, 248a is fastened to the handle housing 52a and / or to the driver housing 54a by means of a damping element receiving portion, such as a groove, a receiving bolt, etc. and / or can be fastened by a screw connection, etc.

[0249] Part 140a of damping unit 136a on projection 138a has, for example, two damping elements 164a of damping elements 164a, 170a, 246a, 248a. Alternatively, it is also conceivable that part 140a of damping unit 136a on projection 138a has only one damping element 164a or more than two damping elements 164a.

[0250] The driver housing 54a is connected to the handle housing 52a via damping elements 164a, 170a, 246a, 248a. The damping unit 136a is provided for vibration decoupling of the handle housing 52a from the driver housing 54a. The handle housing 52a is coupled to the driver housing 54a via two mutually different coupling regions 250a, 252a of the damping unit 136a. The handle housing 52a has two inner regions 226a, 254a spaced apart from each other, in which a part of the driver housing 54a is arranged respectively. Two coupling regions 250a, 252a are arranged in the two inner regions 226a, 254a.

[0251] The extension 138a is arranged on the side of the driver housing 54a facing the battery pack interface 218a. The extension 138a is arranged in the handle housing 52a, in particular in the other inner area 254a of the two inner areas 226a, 254a of the handle housing 52a. The extension 138a forms the outermost point of the driver housing 54a when viewed in a direction perpendicular to the drive axis 30a and extending in the separation plane 146a. The extension 138a is at least partially surrounded by the handle housing 52a. It is also conceivable that the communication module 72a is arranged between the extension 138a and the battery pack interface 218a, in particular in the other inner area 254a.

[0252] The extension 138a has at least one damping element receiving portion 256a for the damping element 164a. The damping element 164a is matched to the damping element receiving portion 256a in terms of shaping. The damping element receiving portion 256a has two receiving bolts for receiving one of the annular damping elements 164a respectively. The damping element receiving portion 256a is provided for receiving the damping element 164a perpendicularly to the main extension plane 64a of the handle housing 52a, in particular the main extension plane 42a of the bow handle 18a, and / or the separating plane 146a. The extension 138a is configured in this case, for example, in a T-shape, in particular for receiving at least two damping elements 164a.

[0253] However, it is also conceivable, for example, that the damping element receiving portion 256a is configured as a groove, in particular for receiving a damping element 164a configured as a block, a plate, etc. The damping element 164a is fixed to the damping element receiving portion 256a by the handle housing 52a, in particular the handle housing shells 192a, 194a. However, it is also conceivable, alternatively or additionally, that the damping element 164a is bonded, screwed, etc. to the damping element receiving portion 256a.

[0254] The maximum distance 142a of the projection 138a from the drive axis 30a is greater than the maximum distance 144a of the tool receiving portion 12a from the drive axis 30a, in particular when viewed in a separation plane 146a of the handle housing 52a (see Figure 6A maximum distance 258a of the part 140a of the damping unit 136a on the projection 138a from the drive axis 30a is greater than a maximum distance 144a of the tool receptacle 12a from the drive axis 30a, in particular when viewed in a separation plane 146a of the handle housing 52a.

[0255] The ratio of the maximum transverse extension 148a of the portion 140a of the damping unit 136a to the minimum distance 150a of the portion 140a of the damping unit 136a from the handle axis 152a of the handle housing 52a is at least 0.9 and at most 1.05. The maximum transverse extension 148a of the portion 140a of the damping unit 136a extends at least substantially perpendicularly to the main extension plane 64a of the handle housing 52a, in particular the main extension plane 42a of the bow handle 18a, and / or the separation plane 146a. The maximum transverse extension 148a of the portion 140a of the damping unit 136a extends at least substantially parallel to the tool receiving surface 102a. The minimum distance 150a of the portion 140a of the damping unit 136a from the handle axis 152a is measured parallel to the separation plane 146a, in particular parallel to the main extension plane 42a of the bow handle 18a, preferably the main extension plane 64a of the handle housing 52a.

[0256] The maximum lateral extension 148a of the portion 140a of the damping unit 136a is, for example, at least 40 mm, preferably at least 45 mm. The maximum lateral extension 148a of the portion 140a of the damping unit 136a is, for example, at most 60 mm, preferably at most 50 mm. The maximum lateral extension 148a of the portion 140a of the damping unit 136a is defined by the maximum distance between the two damping elements 164a, in particular in a direction perpendicular to the main extension plane 42a of the handlebar 18a.

[0257] The ratio of the maximum lateral extension 148a of the portion 140a of the damping unit 136a to the maximum height 34a of the grinding machine 10a is preferably at least 0.35, preferably at least 0.4. The ratio of the maximum lateral extension 148a of the portion 140a of the damping unit 136a to the maximum height 34a of the grinding machine 10a is preferably at most 0.5, preferably at most 0.45.

[0258] The minimum distance 150a of the portion 140a of the damping unit 136a from the handle axis 152a is preferably at least 45 mm, preferably at least 50 mm. The minimum distance 150a of the portion 140a of the damping unit 136a from the handle axis 152a is preferably at most 60 mm, preferably at most 55 mm. However, it is also conceivable that the minimum distance 150a of the portion 140a of the damping unit 136a from the handle axis 152a is less than 45 mm or greater than 60 mm.

[0259] The ratio of the maximum transverse extension 148a of the portion 140a of the damping unit 136a to the minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is at least 0.7, preferably at least 0.73. The ratio of the maximum transverse extension 148a of the portion 140a of the damping unit 136a to the minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is at most 0.8, preferably at most 0.75. The minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is measured parallel to the separating plane 146a, in particular the main extension plane 42a of the bow handle 18a, preferably the main extension plane 64a of the handle housing 52a.

[0260] The minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is preferably at least 55 mm, preferably at least 60 mm. The minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is preferably at most 70 mm, preferably at most 65 mm. However, it is also conceivable that the minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a is less than 55 mm or greater than 70 mm.

[0261] The ratio of the maximum height 156a of the housing unit 16a to the minimum distance 150a of the portion 140a of the damping unit 136a on the projection 138a and the handle axis 152a of the handle housing 52a is at most 2.25. The maximum height 156a of the housing unit 16a extends in the separation plane 146a, in particular in the main extension plane 64a of the handle housing 52a, preferably in the main extension plane 42a of the bow handle 18a.

[0262] The maximum height 156a of the housing unit 16a extends parallel to the drive axis 30a. The maximum height 156a of the housing unit 16a is, for example, at least 90 mm, preferably at least 100 mm. The maximum height 156a of the housing unit 16a is, for example, at most 120 mm, preferably at most 110 mm. However, it is also conceivable that the maximum height 156a of the housing unit 16a in the direction of the drive axis 30a is less than 90 mm or greater than 120 mm.

[0263] The ratio of the maximum extension 296a of the damping unit 136a in the direction of the drive axis 30a, in particular the maximum distance 298a of the damping elements 164a, 170a, 246a, 248a in the direction of the drive axis 30a, to the maximum height 156a of the housing unit 16a is at least 0.8, preferably at least 0.85. The ratio of the maximum extension 296a of the damping unit 136a in the direction of the drive axis 30a, in particular the maximum distance 298a of the damping elements 164a, 170a, 246a, 248a in the direction of the drive axis 30a, to the maximum height 34a of the grinding machine 10a is preferably at least 0.7, preferably at least 0.75. The maximum extension 296a of the damping unit 136a in the direction of the drive axis 30a, in particular the maximum distance 298a of the damping elements 164a, 170a, 246a, 248a in the direction of the drive axis 30a, is, for example, at least 85 mm, preferably at least 90 mm (see Figure 4 ).

[0264] The ratio of the minimum distance 154a of the portion 140a of the damping unit 136a from the drive axis 30a in a direction extending perpendicularly to the drive axis 30a to the maximum longitudinal extension 158a of the housing unit 16a is greater than 0.3. The maximum longitudinal extension 158a of the housing unit 16a extends perpendicularly to the drive axis 30a. The maximum longitudinal extension 158a of the housing unit 16a extends at least substantially parallel to the tool receiving surface 102a. The maximum longitudinal extension 158a of the housing unit 16a extends in the separating plane 146a, preferably in the main extension plane 64a of the handle housing 52a, in particular in the main extension plane 42a of the bow handle 18a.

[0265] The maximum longitudinal extension 158a of the housing unit 16a is preferably at least 175mm, preferably at least 180mm. The maximum longitudinal extension 158a of the housing unit 16a is preferably at most 190mm, preferably at most 185mm. However, alternatively, it is also conceivable that the maximum longitudinal extension 158a of the housing unit 16a is less than 175mm or greater than 190mm.

[0266] The ratio of the minimum distance 154a between the part 140a of the damping unit 136a and the drive axis 30a to the minimum distance 150a between the part 140a of the damping unit 136a and the handle axis 152a of the handle housing 52a is at least 1.2 and at most 1.3.

[0267] The handle bow 18a is supported on the drive housing 54a via a portion 140a of the damping unit 136a and / or via the projection 138a in order to form a closed grip recess 20a of the handle bow 18a.

[0268] The portion 140a of the damping unit 136a and / or the projection 138a are arranged at the height of the handle recess 20a in the direction of the handle axis 152a. The portion 140a of the damping unit 136a on the projection 138a and / or the projection 138a are arranged at least substantially completely within the maximum longitudinal extension 22a of the handle recess 20a, viewed in the direction of the handle axis 152a.

[0269] The two damping elements 164a of the part 140a of the damping unit 136a on the projection 138a are arranged spaced apart from each other. The damping elements 164a are arranged on the sides of the projection 138a facing away from each other. The damping elements 164a are arranged on different sides of the separating plane 146a, in particular the main extension plane 64a of the handle housing 52a, preferably the main extension plane 42a of the bow handle 18a. The damping elements 164a are arranged mirror-symmetrically with respect to the separating plane 146a, in particular the main extension plane 64a of the handle housing 52a, preferably the main extension plane 42a of the bow handle 18a.

[0270] The extension 138a is arranged on the fan housing 166a. The extension 138a is at least partially constructed in one piece with the fan housing 166a. The extension 138a is arranged on the side of the fan housing 166a facing the battery pack interface 218a. The fan housing 166a is arranged between the motor housing 78a and the tool receiving portion 12a. The suction fan 168a is made of metal, especially cast. However, it is also conceivable that the suction fan 168a is made of plastic or a combination of plastic and metal.

[0271] The motor housing 78a and the fan housing 166a are at least partially formed integrally with each other. The fan housing 166a and the motor housing 78a have a common housing shell 84a, 86a. The two housing shells 84a, 86a each have a half of the fan housing 166a and the motor housing 78a.

[0272] The two further damping elements 170a of the damping unit 136a are arranged, for example, on the motor housing 78a in such a way that the damping elements 170a are only partially surrounded by the handle housing 52a when viewed in a sectional plane 172a through the respective damping element 170a and perpendicular to the drive axis 30a. However, it is also conceivable that the damping unit 136a has only one further damping element 170a or more than two further damping elements 170a.

[0273] Two other damping elements 170a are arranged between the handle housing 52a and the motor housing 78a. Two other damping elements 170a are arranged in the handle housing 52a. Two other damping elements 170a are arranged on the sides of the motor housing 78a that are away from each other, in particular on different housing shells 84a, 86a. Two other damping elements 170a are arranged on different sides of the separation plane 146a and / or the driver housing separation plane 228a. Two other damping elements 170a are arranged symmetrically with respect to the separation plane 146a and / or the driver housing separation plane 228a. Two other damping elements 170a are constructed in a cubic shape. Two other damping elements 170a are arranged at the height of the air outlet 74a when viewed in the axial direction.

[0274] The damping unit 136a has two sealing elements 174a, in particular sealing rings, in order to prevent the ingress of exhaust gas into the handle housing 52a. The sealing elements 174a are arranged between the handle housing 52a and the drive housing 54a.

[0275] The sealing element 174a is configured as a circular arc segment. The sealing element 174a is arranged in the handle housing 52a. The sealing element 174a is arranged on the sides of the motor housing 78a that face away from each other, in particular on different housing shells 84a, 86a. The sealing element 174a is arranged on different sides of the separation plane 146a and / or the driver housing separation plane 228a. The sealing element 174a is arranged symmetrically relative to the separation plane 146a and / or the driver housing separation plane 228a.

[0276] Alternatively, however, it is also conceivable that the damping unit 136a has only one sealing element 174a or more than two sealing elements 174a. The sealing element 174a surrounds the motor housing 78a in a circumferential direction, which extends in particular in a plane extending perpendicular to the drive axis 30a, at least substantially completely, preferably over an angular range of at least 270°, preferably at least 330° and particularly preferably at least 350°.

[0277] The sealing element 174a is arranged to at least substantially completely fill the gap between the motor housing 78a and the handle housing 52a. The sealing element 174a is composed of an elastic material, preferably of an elastic plastic. The sealing element 174a preferably has a material hardness different from that of the damping elements 164a, 170a, 246a, 248a. The material hardness of the sealing element 174a is less than the material hardness of the damping elements 164a, 170a, 246a, 248a. Alternatively, it is conceivable that the sealing element 174a and the damping elements 164a, 170a, 246a, 248a have the same material hardness. The sealing element 174a is arranged above the air outlet 74a with respect to the tool receiving portion 12a. The sealing element 174a is additionally arranged to support and / or decouple the handle housing 52a from the vibration of the drive housing 54a.

[0278] The damping unit 136a has four additional damping elements 246a. Alternatively, it is also conceivable that the damping unit 136a has less than four additional damping elements 246a or more than four additional damping elements 246a. The additional damping elements 246a are arranged between the handle housing 52a and the motor housing 78a. The additional damping elements 246a are arranged in the handle housing 52a. The additional damping elements 246a are evenly arranged in the circumferential direction of the motor housing 78a, which extends in particular in a plane perpendicular to the drive axis 30a.

[0279] Two of the additional damping elements 246a are arranged on sides of the motor housing 78a facing away from each other, in particular on different housing shells 84a, 86a. Two of the additional damping elements 246a are arranged on different sides of the separating plane 146a and / or the drive housing separating plane 228a.

[0280] The additional damping element 246a is arranged symmetrically with respect to the separating plane 146a and / or the driver housing separating plane 228a. The additional damping element 246a is designed in a cuboid shape. The two sealing elements 174a are arranged between the further damping element 170a and the additional damping element 246a when viewed in the axial direction.

[0281] The damping unit 136a has a further additional damping element 248a. The further additional damping element 248a is provided for damping relative movements, in particular vibrations, axially about the drive axis 30a between the driver housing 54a and the handle housing 52a and / or for axial support between the handle housing 52a and the driver housing 54a. However, it is also conceivable, alternatively or additionally, that the further additional damping element 248a is provided for damping radial movements and / or for radial support between the handle housing 52a and the driver housing 54a. The further additional damping element 248a is preferably arranged in an extension of the motor axis 260a, preferably between the motor housing 78a and the handle housing 52a.

[0282] The additional damping element 248a is, for example, cylindrical in shape. Alternatively, it is also conceivable that the additional damping element 248a is configured as a cube, etc. The additional damping element 248a is, for example, prestressed and arranged between the drive housing 54a and the handle housing 52a.

[0283] A maximum extension 296a of damping unit 136a in the direction of drive axis 30a, in particular a maximum distance 298a of damping elements 164a, 170a, 246a, 248a in the direction of drive axis 30a, is defined by a maximum distance between further additional damping element 248a and damping element 164a in the direction of drive axis 30a.

[0284] Fig.11 A schematic sequence of a method for producing, in particular, the above-mentioned hand-held power tool device 48a is shown. The protective device 120a is produced at least partially from a thermoplastic elastomer.

[0285] In a method step, in particular a shaping step 242a, the base body 236a is shaped. In a method step, in particular an overmolding step 244a, the base body 236a is overmolded with a protective layer made of a thermoplastic elastomer. Alternatively, it is also conceivable that the base body 236a is already at least partially shaped with a thermoplastic elastomer, in particular in the shaping step 242a.

[0286] exist Fig.12 Another embodiment of the present invention is shown in FIG. The following description and drawings are essentially limited to the differences between the individual embodiments, wherein, with respect to the components with the same reference numerals, in particular with respect to the components with the same reference numerals, reference can in principle also be made to other embodiments, in particular Figures 1 to 11 In order to distinguish between the various embodiments, the letter a is placed in Figures 1 to 11 After the reference numerals of the embodiments in the Fig.12 In the embodiment, the letter a is replaced by the letter b.

[0287] Fig.12 A handheld power tool system 36b is shown with a handheld power tool 50b. The handheld power tool 50b is configured as a grinder 10b. The handheld power tool 50b is configured as a battery-powered grinder. However, it is also conceivable that the handheld power tool 50b, in particular the grinder 10b, is configured as a mains-operated handheld power tool. The grinder 10b is configured as an eccentric grinding device. However, it is also conceivable that the grinder 10b is configured as a vibration grinding device, a triangular grinding device, etc.

[0288] The handheld power tool 50b has a tool receptacle 12b, in particular a grinding pad, for receiving a tool 178b. The handheld power tool 50b has a drive unit (not shown here) for driving the tool receptacle 12b.

[0289] The handheld power tool 50b has a housing unit 16b.

[0290] The housing unit 16b has a handle housing 52b and a fan housing 166b for receiving a suction fan. The fan housing 166b is configured as a metal housing, in particular an aluminum housing. However, alternatively, it is also conceivable that the fan housing 166b is at least partially configured as a plastic housing. The handle housing 52b has a bow handle 18b. The handle housing 52b is coupled to the fan housing 166b. A drive unit, in particular an electric motor, of the handheld machine tool 50b is arranged in the handle housing 52b.

[0291] The ratio of the maximum longitudinal extension of the handle recess 20b of the bow handle 18b to the maximum longitudinal extension of the tool receiving portion 12b is at least 0.35 and at most 0.5. The bow handle 18b is designed to be closed. The handle recess 20b is surrounded, in particular limited, by the wall of the handle housing 52b when viewed in the main extension plane of the bow handle 18b. The fan housing 166b is directly attached to the handle housing 52b. The handle housing 52b has an air outlet 74b.

[0292] The handheld power tool 50b has a handheld power tool device 48b. The housing unit 16b is a part of the handheld power tool device 48b. The fan housing 166b has a central protrusion 60b on the surface of the upper side of the fan housing 166b, which is raised relative to the surface. The central protrusion 60b descends to the surface in two directions starting from the main extension plane (not shown here) of the handle housing 52b and extending perpendicularly to the main extension plane of the handle housing 52b.

[0293] The handheld power tool system 36b has a battery pack 38b for supplying power to the handheld power tool 50b. The handheld power tool system 36b has a support unit 92b which is designed to place and / or rest the grinding machine 10b on a floor (not shown here) in at least one placement and / or resting position, wherein the battery pack 38b has a support surface of the support unit 92b for the at least one placement and / or resting position.

[0294] The handheld power tool 50b has a receptacle 68b for a user interface 70b of the handheld power tool 50b. The receptacle 68b is delimited by the handle housing 52b and the fan housing 166b.

Claims

1. A handheld machine tool system (36a; 36b), comprising: A grinding machine (10a; 10b), in particular an eccentric grinding device or a vibrating grinding device, and a battery pack (38a; 38b) for supplying energy to the grinding machine (10a; 10b), Features A support unit (92a; 92b) is provided, which is configured to place and / or place the grinding machine (10a; 10b) on a ground surface (94a) in at least one placement and / or resting position, wherein the battery pack (38a; 38b) has a support surface (96a) of the support unit (92a; 108a) for the at least one placement and / or resting position.

2. The hand-held power tool system (36a; 36b) according to claim 1, characterized in that The grinding machine (10a; 10b) has a tool receiving portion (12a; 12b) for receiving a tool (178a; 178b), wherein the tool receiving portion (12a; 12b) and / or the tool (178a; 178b) are spaced apart from the ground surface (94a) in the at least one placement and / or resting position.

3. The handheld power tool system (36a) according to claim 1 or 2, characterized in that The grinding machine (10a) can be placed in the at least one placement and / or resting position individually via the support surface (96a).

4. The hand-held power tool system (36a) according to claim 1, characterized in that A main extension plane (98a) of the support surface (96a) extends at an angle (104a) different from 90° relative to a main extension plane (232a) of a tool receiving surface (102a) of a tool receiving portion (12a) of the grinding machine (10a).

5. The hand-held power tool system (36a) according to claim 4, characterized in that A main extension plane (232a) of the tool receiving surface (102a) and a main extension plane (98a) of the support surface (96a) enclose an angle (104a) that is greater than 80 degrees.

6. The hand-held power tool system (36a) according to claim 1, characterized in that A normal (106a) to a main extension plane (98a) of the support surface (96a) intersects a center of gravity (26a) of the battery pack (38a) and the grinding machine (10a).

7. The hand-held power tool system (36a) according to claim 1 or 2, characterized in that An edge (110a) of a battery pack housing (112a) of the battery pack (38a) forms a support surface (108a).

8. The hand-held power tool system (36a) according to claim 1, characterized in that The main axis of extension (118a) of the battery pack (38a) extends at least substantially perpendicularly to the main axis of extension of the grinding machine (10a).

9. A hand-held power tool system (36a) according to at least one of claims 1 or 2, characterized in that The grinding machine (10a) has only one bearing point (114a), which is located in a bearing plane (116a) of the placement and / or resting position of the bearing unit (92a).

10. The hand-held power tool system (36a) according to claim 1, characterized in that The support unit (92a) is designed to place and / or place the grinding machine (10a) on the ground surface (94a) in at least one further placement and / or storage position, wherein the battery pack (38a) has a further support surface (108a) of the support unit (92a) for the further placement and / or storage position.

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