EP3578326A1 - Portable machine tool - Google Patents

Abstract

The invention relates to a portable machine tool, in particular a hand planer, with at least one workpiece contact unit (12) which has at least one workpiece contact surface (14, 16), and with at least one handle unit (18) which has at least one main handle (20) It is proposed that the main handle (20) have at least one maximum distance point (22) which, viewed along a direction (24) running at least substantially perpendicular to the at least one workpiece contact surface (14, 16), has a maximum distance (26) to which has at least one workpiece contact surface (14, 16) that is smaller than 150 mm.

Description

State of the art

Out DE 198 53 374 B4 is already a portable machine tool, in particular a hand planer, with a workpiece mounting unit having a workpiece abutment surface, and known with a handle unit having a main handle.

Disclosure of the invention

The invention is based on a portable machine tool, in particular a hand planer, with at least one workpiece placement unit having at least one workpiece abutment surface, and with at least one handle unit having at least one main handle.

It is proposed that the main handle has at least one maximum distance point which, viewed along a direction extending at least substantially perpendicular to the at least one workpiece contact surface, has a maximum distance to the at least one workpiece contact surface that is smaller than 150 mm. The term "substantially perpendicular" is intended here to define, in particular, an orientation of a direction relative to a reference direction, the direction and the reference direction, in particular in one plane, including an angle of 90 ° and the angle a maximum deviation of, in particular, less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °. Below a "maximum distance point of the main handle "is to be understood here as meaning, in particular, a point located on the main handle which, viewed along the direction running at least substantially perpendicular to the workpiece contact surface, has the greatest distance to the workpiece contact surface compared to other points located on the main handle Thus, the maximum distance point is preferably arranged on a side of the main handle remote from the workpiece contact surface, a "main handle" is to be understood here as meaning, in particular, a handle which, with proper handling of the portable machine tool, is to be understood a guide of the portable power tool is usable and on which a large part of a manager can be supported by an operator for guiding the portable power tool B Particularly preferred is an operating unit, in particular at least one movably mounted control element of the operating unit for commissioning the portable power tool, arranged on the main handle. Thus, the operating unit is preferably operable by a user when gripping the main handle. The main handle is preferably designed as a strap handle. Thus, the main handle with two opposite ends of the main handle is connected to a machine tool housing of the portable power tool, in particular integrally formed with the machine tool housing. Preferably, the main handle has an oval-shaped cross-sectional shape with flattened sides. However, it is also conceivable for the main handle to have an elliptical cross-sectional shape, a round cross-sectional shape or another cross-sectional shape that appears appropriate to a person skilled in the art. A "control unit" should be understood here to mean, in particular, a unit which has at least one component which can be actuated directly by an operator and which is provided by means of an actuation and / or by inputting parameters a process and / or a state a unit of the portable power tool coupled to the control unit to influence and / or change. By "provided" is intended to be understood in particular specially programmed, designed and / or equipped. By the fact that an element and / or a unit is / are intended for a certain function, it should be understood in particular that the element and / or the unit perform this specific function in at least fulfill an application and / or operating state / fulfills and / or perform / execute.

A "portable machine tool" is to be understood here in particular as meaning a machine tool for machining workpieces, which can be transported without transport machine by an operator. In particular, the portable power tool has a mass which is less than 40 kg, preferably less than 10 kg and particularly preferably less than 5 kg. Particularly preferably, the portable power tool is designed as a hand planer. However, it is also conceivable that the portable power tool has another, a skilled person appear appropriate design, such as an embodiment as a jigsaw machine, as a router or the like.

The term "work piece unit" is intended here to define, in particular, a unit of the portable machine tool which abuts the workpiece during machining of a workpiece by means of the portable machine tool with proper handling of the portable machine tool and / or rests on the workpiece, in particular with the at least one workpiece abutment surface the workpiece plant unit, and which is intended to support the portable power tool during a machining of the workpiece on the workpiece. Particularly preferably, the workpiece placement unit is designed as a base plate, as a sliding block and / or as a base plate. Preferably, the portable machine tool slides during a machining of a workpiece by means of the workpiece mounting unit, in particular with the at least one workpiece contact surface of the workpiece mounting unit, on a surface of the workpiece to be machined.

Advantageously, the portable power tool has a maximum longitudinal extent and a maximum height extent, wherein a ratio of the maximum longitudinal extent to the maximum height extent is less than 2.5. Preferably, the ratio of the maximum longitudinal extent to the maximum height extent is less than 2.4. The maximum longitudinal extension particularly preferably runs at least substantially parallel to the at least one workpiece abutment surface and at least substantially perpendicular to a movement axis, in particular a rotation axis, an insert tool unit of the portable power tool. Preferably, in one embodiment of the portable power tool as a cable-operated machine tool, the maximum longitudinal extent is less than 350 mm, preferably less than 320 mm and particularly preferably less than 300 mm. In particular, in one embodiment of the portable power tool as a battery-powered machine tool, the maximum longitudinal extent is less than 280 mm, preferably less than 250 mm and particularly preferably less than 220 mm. In this case, preferably has a movably mounted workpiece contact surface of the workpiece mounting unit in particular a maximum longitudinal extent, which is smaller than 100 mm, preferably smaller than 80 mm and particularly preferably smaller than 70 mm. In particular, a workpiece abutment surface of the workpiece abutment unit which is stationary relative to the machine tool housing has a maximum longitudinal extent which is less than 150 mm, preferably less than 130 mm and particularly preferably less than 120 mm. Furthermore, the maximum height extent preferably extends at least substantially perpendicular to the at least one workpiece abutment surface. Particularly preferably, the maximum height extent is formed by the maximum distance of the maximum distance point to the workpiece abutment surface. In particular, the maximum height extent is less than 180 mm, preferably less than 150 mm and particularly preferably less than 140 mm. Furthermore, the portable power tool preferably comprises a maximum width extension, which extends at least substantially parallel to the at least one workpiece abutment surface and at least substantially parallel to the axis of movement, in particular the axis of rotation, the insert tool unit of the portable power tool. In particular, the maximum width extension is less than 140 mm, preferably less than 120 mm and particularly preferably less than 100 mm. In a very particularly preferred embodiment of the portable power tool, the maximum width extension is preferably less than 60 mm. In particular, a ratio of the maximum longitudinal extent to the maximum width extent is preferably less than 2.5, preferably less than 2.4, and particularly preferably less than 2.3.

By means of the embodiment according to the invention, the main handle is preferably arranged close to the at least one workpiece abutment surface. Thus, can Advantageously, a particularly compact embodiment of the portable power tool can be achieved. It can thus be advantageously achieved a precise guidance and fatigue-free handling of the portable power tool over a long period. In addition, advantageously, a machining of workpieces in hard to reach places are possible. In addition, a comfortable handling of the portable power tool can be achieved.

Furthermore, it is proposed that the maximum distance point, viewed along the direction extending at least substantially perpendicular to the at least one workpiece abutment surface, has a maximum distance to the at least one workpiece abutment surface that is smaller than 120 mm. Preferably, the maximum distance of the maximum distance point to the at least one workpiece abutment surface, viewed along the at least substantially perpendicular to the at least one workpiece abutment surface extending direction, smaller than 110 mm and more preferably smaller than 100 mm. As a result, a compact embodiment of the portable power tool can be realized particularly advantageously.

It is also proposed that the portable power tool has at least one center of gravity axis extending at least substantially parallel to the at least one workpiece abutment surface, which, viewed along the at least substantially perpendicular direction to the at least one workpiece abutment surface, has a maximum distance to the maximum distance point which is smaller than 90 mm. In particular, the center of gravity axis, viewed along the at least substantially perpendicular to the at least one workpiece bearing surface extending direction, a maximum distance relative to the maximum distance point, which is smaller than 70 mm, preferably smaller than 50 mm and more preferably smaller than 40 mm. In a configuration of the portable power tool as a battery-powered machine tool, the center of gravity axis has a maximum distance relative to the maximum distance point along the at least substantially perpendicular to the at least one workpiece contact surface, which has a value between 40 mm and 50 mm. In one embodiment of the portable power tool as Wired machine tool has the center of gravity, considered along the at least substantially perpendicular to the at least one workpiece bearing surface extending direction, most preferably a maximum distance relative to the maximum distance point, which has a value between 32 mm and 45 mm. A "center of gravity axis" is to be understood here in particular as an axis that runs through the center of gravity of the portable power tool and, in particular, is arranged in a plane extending at least substantially parallel to the at least one workpiece contact surface. "Substantially parallel" is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction is a deviation, in particular less than 30 °, advantageously less than 15 ° and particularly advantageously less than 10 °. Particularly preferably, the center of gravity axis runs parallel to the at least one workpiece abutment surface. By means of the embodiment according to the invention can advantageously be achieved a close arrangement of the main handle relative to a center of gravity of the portable power tool. As a result, advantageously, a short lever arm can be realized from the main handle to the center of gravity. Torques that an operator must support during machining with the portable power tool are thus advantageously low. Thus, fatigue-free working with the portable power tool can advantageously be realized over a long period of time. In addition, a particularly comfortable use of the portable power tool, in particular in an embodiment of the main handle as a bow handle, can be achieved with regard to a working method for lateral machining, in particular a side edge machining method of a workpiece, wherein a center of gravity of the portable power tool is advantageously arranged close to the main handle, in particular, close to an operating element of an immersion depth adjusting unit of the portable power tool. It thus occurs due to the inventive design of the portable power tool only a prematurely low moment, which is supported by an operator in a lateral processing, in particular a side edge machining, a workpiece on the main handle. In particular, the moment here is less than 2 Nm, preferably less than 1 Nm, more preferably less than 0.4 Nm and most preferably less than 0.35 Nm.

Furthermore, it is proposed that the portable power tool has at least the center of gravity axis and at least one drive unit which, viewed along the at least substantially perpendicular to the at least one workpiece abutment surface extending direction, at least for the most part above the center of gravity axis. The term "arranged at least for the most part above the center of gravity" is to be understood here as meaning, in particular, an arrangement of an element and / or a unit, wherein in particular at least more than 60%, preferably more than 75% and particularly preferably more than 90% of a total volume of the element and / or the unit, viewed along a direction starting from the at least one workpiece abutment surface in the direction of the main handle, above an imaginary plane in which the axis of gravity extends, are arranged. Thus, in particular 60%, preferably more than 75% and particularly preferably more than 90% of a total volume of the drive unit, viewed along the direction starting from the at least one workpiece contact surface in the direction of the main handle, above the imaginary plane in which the axis of gravity extends, arranged. Particularly preferably, the drive unit is designed as an electric motor unit. However, it is also conceivable that the drive unit has another, to a person skilled in the appear appropriate design, such as a configuration as an internal combustion engine unit, as a hybrid motor unit o. The like. The drive unit preferably has at least one in a configuration of the portable power tool as a battery-powered machine tool Power of 200 W, preferably at least a power of 240 W. In one embodiment of the portable power tool as a wired machine tool preferably the drive unit has at least a power of 500 W, preferably at least a power of 800 W. By means of the inventive design can be particularly advantageous a center of gravity of the portable power tool are displaced in the direction of the main handle. Thus, a maximum distance of the main handle is particularly preferably low to realize a short lever arm between the center of gravity and the main handle. Thus, a particularly fatigue-free working with the portable power tool over a long period can be advantageously made possible.

It is further proposed that the portable power tool comprises at least the drive unit which has at least one drive axis, in particular a rotation axis of a rotor of the drive unit, which, viewed along the at least substantially perpendicular to the at least one workpiece contact surface direction, a minimum distance to the has at least one workpiece abutment surface which is greater than 45 mm. Preferably, the minimum distance of the drive axle to the at least one workpiece abutment surface is greater than 50 mm and particularly preferably greater than 60 mm. In particular, the drive axis, viewed along the at least substantially perpendicular to the at least one workpiece contact surface extending direction, a maximum distance to the at least one workpiece abutment surface which is smaller than 150 mm, preferably smaller than 130 mm, and particularly preferably smaller than 110 mm. By means of the embodiment according to the invention, a structurally simple arrangement of the drive unit in a vicinity of the main handle can be made possible.

In addition, it is proposed that the portable machine tool comprises at least the insert tool unit and at least the drive unit for driving the insert tool unit, wherein the drive unit, as viewed along the at least substantially perpendicular to the at least one workpiece abutment surface extending direction, is arranged for the most part above the insert tool unit. The term "arranged at least for the most part above the insert tool unit" should be understood to mean, in particular, an arrangement of an element and / or a unit, wherein in particular at least more than 60%, preferably more than 75% and particularly preferably more than 90% of a total volume of the element and / or the unit, viewed along a direction starting from the at least one workpiece abutment surface in the direction of the main handle, above an imaginary plane that contacts or intersects the insert tool unit at a point viewed along the at least substantially perpendicular to the at least one a workpiece bearing surface extending direction, a maximum distance to the at least one workpiece abutment surface, are arranged. Thus, in particular more than 60%, preferably more than 75% and particularly preferably more than 90% of a total volume of the drive unit, considered along a starting from the at least one workpiece abutment surface in the direction of the main handle directed direction, above the insert tool unit in at least one point contacting plane arranged. Particularly preferably, the insert tool unit is designed as a planer blade unit. By means of the embodiment according to the invention, it is possible to achieve, in a structurally simple manner, an arrangement of the center of gravity of the portable power tool in a vicinity of the main handle.

Furthermore, it is proposed that the portable power tool comprises at least the drive unit which has at least the drive axle which intersects a main extension axis of the main handle. Particularly preferably, the main extension axis of the main handle extends at least substantially parallel to the at least one workpiece abutment surface. Preferably, the drive axis and the main extension axis are arranged in a common plane which extends at least substantially parallel to the at least one workpiece abutment surface. By means of the embodiment according to the invention, advantageously, a distance between the drive unit and the main handle, viewed along the at least substantially perpendicular to the at least one workpiece abutment surface extending direction, are kept small. Thus, a center of gravity of the portable power tool can be structurally easily arranged in a vicinity of the main handle to achieve a compact design and thus a user-friendly handling of the portable power tool.

It is also proposed that the portable power tool comprises at least the drive unit which is designed as an EC motor unit. As a result, a compact embodiment of the portable power tool can be positively influenced, without having to accept power losses of the portable power tool. Thus, a compact design and also a powerful embodiment of the portable power tool can advantageously be achieved at the same time.

In addition, it is proposed that the portable power tool comprises at least the insert tool unit and at least one Werkstückabtragabführungseinheit, viewed along an at least substantially parallel to the at least one workpiece abutment surface extending direction, is arranged in front of the insert tool unit, in particular as viewed along a direction opposite to a processing direction of the portable machine tool direction. A "workpiece removal discharge unit" is to be understood here in particular as a unit which is intended to convey workpiece particles which can be removed by means of the insert tool unit after removal from an insert tool unit receiving area, in particular out of the machine tool housing of the portable machine tool, and / or during a promotion from the machine tool housing to carry the removed workpiece particles. Preferably, the Werkstückabtragabführungseinheit is designed as a chip ejection unit. Preferably, at least one subregion of the at least one movably mounted workpiece abutment surface is designed as a chip breaker step of the workpiece removal evacuation unit. By means of the arrangement according to the invention of the workpiece removal discharge unit in front of the insert tool unit, a rotational energy of the insert tool unit can advantageously be utilized for dispensing, in particular for ejecting, workpiece removal. It can thus be advantageously avoided using an additional fan. In addition, advantageously, a particularly space-saving arrangement of Werkstückabtragabführungseinheit can be achieved on the portable machine tool, as can be dispensed with long discharge channels. This has a positive effect on the compactness of the portable power tool.

Furthermore, it is proposed that the portable power tool comprises at least one energy storage unit, which is arranged for the most part in the main handle. In this case, the energy storage receiving unit is preferably enclosed by at least one housing wall forming the main handle, in particular integrally formed therewith. Particularly preferably, the energy storage unit is provided to receive a designed as a battery accumulator energy storage unit. In this case, the energy storage unit can preferably be detachably arranged on the energy storage receiving unit. The term "arranged for the most part in the main handle" is to be understood here in particular as an arrangement of an element and / or a unit in the main handle, wherein in particular at least more than 60%, preferably more than 75% and particularly preferably more than 90% of a total volume of the element and / or unit, are located within the main handle. By means of the embodiment according to the invention, an advantageous arrangement of an energy storage unit can be made possible by means of which a compact embodiment of the portable power tool according to the invention can be influenced particularly positively. In addition, an energy storage unit arranged on the energy storage unit can advantageously be protected by means of an arrangement in the main handle.

It is also proposed that the energy storage receiving unit has at least one energy storage guide element which has a main extension running at least substantially parallel to the at least one workpiece contact surface. As a result of an at least substantially parallel alignment of the energy storage guide element and the at least one workpiece abutment surface, a compact embodiment of the portable machine tool can advantageously be favored. In addition, an insertion movement of the energy storage unit along an arrangement movement running at least substantially parallel to the at least one workpiece contact surface, in particular insertion movement, can be realized.

In addition, a machine tool system with at least one portable power tool according to the invention and with at least the energy storage unit, in a state arranged on the portable machine tool, along the at least substantially perpendicular to the workpiece bearing surface direction, at least substantially completely, in particular completely, above the axis of gravity of the portable power tool is arranged, proposed. In this case, the energy storage unit is preferably aligned in a state arranged on the energy storage receiving unit, at least substantially parallel to the center of gravity axis. Thus, advantageously, a compact embodiment of the portable power tool can be achieved. In addition, the energy storage unit can be used as a balancing weight for workpiece mounting unit.

Furthermore, it is proposed that the machine tool system has a maximum total mass that is less than 1.5 kg. In this case, the portable power tool preferably has a maximum total individual mass which is less than 1 kg. In particular, the energy storage unit has a maximum total individual mass that is less than 0.5 kg. In an alternative embodiment of the portable power tool as a wired machine tool, the portable power tool preferably has a maximum total mass that is smaller than 2.5 kg. By means of the embodiment according to the invention can be advantageously made a fatigue-free working with the portable power tool over a long period of time, as an operator is exposed to low loads.

It is further proposed that the machine tool system has a maximum longitudinal extension which is smaller than 230 mm. Thus, a compact and easy to handle machine tool system can be realized particularly advantageous.

The portable power tool according to the invention and / or the power tool system according to the invention should / should not be limited to the application and embodiment described above. In particular, the portable power tool according to the invention and / or the power tool system according to the invention may have a number deviating from a number of individual elements, components and units specified herein for performing a function described herein. In addition, in the value ranges indicated in this disclosure, values lying within the stated limits are also to be disclosed as disclosed and used as desired.

drawing

Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Fig. 1

eine Seitenansicht eines erfindungsgemäßen Werkzeugmaschinensystems mit einer erfindungsgemäßen tragbaren Werkzeugmaschine und mit einer Energiespeichereinheit in einer schematischen Darstellung,

Fig. 2

eine Draufsicht des erfindungsgemäßen Werkzeugmaschinensystems in einer schematischen Darstellung und

Fig. 3

eine Schnittansicht der erfindungsgemäßen tragbaren Werkzeugmaschine in einer schematischen Darstellung.

Show it:

Fig. 1

a side view of a machine tool system according to the invention with a portable power tool according to the invention and with an energy storage unit in a schematic representation,

Fig. 2

a top view of the machine tool system according to the invention in a schematic representation and

Fig. 3

a sectional view of the portable power tool according to the invention in a schematic representation.

Description of the embodiment

FIG. 1 shows a machine tool system 52 having at least one portable power tool 10 and at least one energy storage unit 54. The power tool system 52 has a maximum total mass that is less than 1.5 kg. Here, the portable power tool 10 has a maximum total individual mass that is smaller than 1 kg. The energy storage unit 54 has a maximum total individual mass that is less than 0.5 kg. In this case, the energy storage unit 54 is designed as an accumulator unit. In addition, the energy storage unit 54 is detachably attachable to the portable power tool 10. For this purpose, the portable power tool 10 comprises at least one energy storage unit 48, by means of which the energy storage unit 54 can be arranged and / or fixed to the portable power tool 10 in a manner already known to a person skilled in the art. The energy storage unit 54 is in a state arranged on the portable power tool 10, viewed along an at least substantially, in particular completely, perpendicular to a workpiece contact surface 14 of a workpiece fixture 12 of the portable power tool 10 extending direction 24, at least substantially completely above a gravity axis 28 of the portable Machine tool 10 is arranged. The portable power tool 10 is thus formed as a battery-powered portable power tool. It is However, also conceivable that the portable power tool 10 is formed in an alternative embodiment, not shown here as a wired portable portable power tool.

The portable power tool 10 is designed as a hand planer. Thus, the portable power tool 10 includes at least the workpiece fixture 12 having at least the workpiece abutment surface 14 and at least one handle assembly 18 having at least one main handle 20. The workpiece mounting unit 12 comprises a total of at least two workpiece abutment surfaces 14, 16. The workpiece abutment surfaces 14, 16 extend at least substantially, in particular completely, parallel to one another. However, it is also conceivable that the workpiece mounting unit 12 has one of two different number of workpiece abutment surfaces 14, 16. One of the workpiece abutment surfaces 14, 16 is movably mounted on a machine tool housing 56 of the portable power tool 10. The other of the workpiece abutment surfaces 14, 16 is fixedly arranged on the machine tool housing 56. In this case, the workpiece abutment surface 14 arranged stationarily on the machine tool housing 56 is formed by a base plate element of the workpiece abutment unit 12. The workpiece abutment surfaces 16 movably mounted on the machine tool housing 56 are formed by a further base plate element of the workpiece abutment unit 12. A position of the workpiece abutment surface 16 movably mounted on the machine tool housing 56 is adjustable relative to the machine tool housing 56 by means of an immersion depth setting unit 58 of the portable machine tool 10 in a manner already known to a person skilled in the art. The immersion depth setting unit 58 is thus provided in a manner already known to a person skilled in the art to set an immersion depth, in particular a planing depth, of an insert tool unit 42 of the portable power tool 10. For setting an immersion depth, the immersion depth setting unit 58 comprises at least one immersion depth operating element 68. The immersion depth operating element 68 is rotatably mounted on the machine tool housing 56. The immersion depth operating element 68 also forms, in a manner already known to a person skilled in the art, a further contact surface for a hand of an operator to guide the portable power tool 10.

In addition, the portable power tool 10 includes at least one operating unit 80 which is provided to open and / or close a circuit as a result of an operation by an operator. The operating unit 80 has at least one operating element 82. The operating element 82 is arranged on the main handle 20. Here, the control element 82 is movably mounted on the main handle 20. The control element 82 is translatorsich movably mounted on the main handle 20. However, it is also conceivable that the operating element 82 is pivotally mounted on the main handle 20. The operating element 82 is in a manner already known to a person skilled in the art for actuating an electrical switch element 66 (FIG. FIG. 3 ) of the portable power tool 10 is provided.

Further, the portable power tool 10 has a maximum longitudinal extent 32 and a maximum height extent 34, wherein a ratio of the maximum longitudinal extent 32 to the maximum height extent 34 is less than 2.5. The maximum longitudinal extent 32 runs at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16 and at least substantially, in particular completely, perpendicular to a rotation axis 76 of the insert tool unit 42 of the portable power tool 10. The maximum height extent 34 extends at least substantially , in particular completely, perpendicular to at least one of the workpiece abutment surfaces 14, 16. In addition, the portable power tool 10 comprises a maximum width extension 78 (FIG. FIG. 2 ), which extends at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16 and at least substantially, in particular completely, parallel to the axis of rotation 76 of the insert tool unit 42. Here, a ratio of the maximum longitudinal extension 32 to the maximum width extension 78 is less than 2.5.

In addition, the machine tool housing 56 comprises at least two housing shell elements 60, 62, which are connected to each other ( FIG. 2 ). Here, the housing shell elements 60, 62 by means of fastening elements, in particular screws, fixed to each other. Thus, the machine tool housing 56 has a half shell construction. However, it is also conceivable that the machine tool housing 56 another, a professional as meaningful Apparent embodiment, such as a pot construction or a combination of a pot construction and a shell construction o. The like. The machine tool housing 56 is made of a plastic. In particular, all components of the portable power tool 10 are arranged directly in the housing shell elements 60, 62. Thus, all bearing seats or receptacles for the components of the portable power tool 10 are formed by the housing shell elements 60, 62. In particular, excluded from bearing elements, such as, for example, roller bearings or slide bearings, it is advantageously possible to dispense with additional metallic elements for mounting and / or receiving the individual components.

The housing shell elements 60, 62 form the main handle 20 in a mutually fixed state. Each of the housing shell elements 60, 62 preferably forms one half of the main handle 20. In this case, the energy storage receiving unit 48 is largely arranged in the main handle 20. Preferably, the energy storage unit 48 is completely arranged in the main handle 20. The energy storage receiving unit 48 has at least one energy storage guide element 50, which has an at least substantially, in particular completely, parallel to the workpiece contact surfaces 14, 16 extending main extent. The energy storage guide element 50 is in this case arranged on a side facing away from a grip surface 64 of the main handle 20 side of the housing shell elements 60, 62, wherein the opposite side of an inner wall of the housing shell members 60, 62 is formed. The energy storage guide element 50 is formed rib-shaped. However, it is also conceivable that the energy storage guide element 50 has another, to those skilled appear appropriate design, such as groove-like o. The like. Overall, the energy storage device 48 includes at least two energy storage guide elements 50 (in FIG. 1 only one of the energy storage guide elements 50 is shown in dashed lines) on. However, it is also conceivable that the energy storage unit 48 has one of two different number of energy storage guide elements 50. The energy storage guide elements 50 have an at least substantially analogous configuration. In this case, in each case one of the energy storage guide elements 50 is arranged on an inner wall of one of the housing shell elements 60, 62. Thus, the energy storage guide elements 50 are in one fixed state of the housing shell elements 60, 62 arranged on two facing inner sides of the machine tool housing 56. The energy storage guide elements 50 extend at least substantially, in particular completely, parallel to one another. The energy storage receiving unit 48 is in this case arranged on a side facing away from the workpiece mounting unit 12 side of the machine tool housing 56. Thus, the main handle 20 is also disposed on a side facing away from the workpiece mounting unit 12 of the machine tool housing 56.

The main handle 20 has at least one maximum distance point 22 which, viewed along an at least substantially, in particular completely perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, a maximum distance 26 to at least one of the workpiece abutment surfaces 14, 16 smaller than 150 mm. In this case, the maximum distance point 22 is arranged on a side of the gripping surface 64 of the main handle 20 remote from the workpiece placement unit 12. In particular, the maximum distance point 22, viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, a maximum distance 26 to at least one of the workpiece abutment surfaces 14, 16, which is smaller than 120 mm. The maximum distance point 22, in particular in a fully retracted state of the movably mounted workpiece abutment surface 16, in which the movably mounted workpiece abutment surface 16 rests against a stop of the machine tool housing 56, a maximum distance 26 relative to the movably mounted workpiece abutment surface 16, which is smaller than 120 mm ,

Furthermore, the portable power tool 10 has at least one center of gravity axis 28 extending at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16, which viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24th , has a maximum distance 30 to the maximum distance point 22 that is less than 90 mm. The center of gravity axis 28 in this case has a maximum distance 30 to at least one of the workpiece abutment surfaces 14, 16, which is smaller than 60 mm, in particular smaller than 50 mm. In addition, the axis of gravity 28 extends at least essentially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16.

Furthermore, the portable power tool 10 has at least one drive unit 36, which, viewed along the at least substantially perpendicular to at least one of the workpiece bearing surfaces 14, 16 extending direction 24, at least a large part above the gravity axis 28 is arranged ( FIG. 3 ). In this case, at least 60% of a total volume of the drive unit 36 is arranged above the center of gravity axis 28. The drive unit 36 is arranged in a particularly preferred embodiment of the portable power tool 10 completely above the center of gravity axis 28. The drive unit 36 is designed as EC motor unit. However, it is also conceivable that the drive unit 36 has another, to a professional appear appropriate design, especially in an alternative embodiment of the portable power tool 10 as a wired portable portable power tool. The drive unit 36 has at least one drive axle 38, which, viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, a minimum distance 40 to at least one of the workpiece abutment surfaces 14, 16 which is greater than 45 mm ( FIG. 3 ). The drive axle 38 in this case runs at least essentially, in particular completely, parallel to at least one of the workpiece contact surfaces 14, 16. Furthermore, the drive axle 38 intersects a main extension axis 44 of the main handle 20. The main extension axis 44 of the main handle 20 extends at least substantially, in particular completely, parallel to However, it is also conceivable that the drive axle 38 extends with a parallel offset, which is smaller than 10 mm or skewed to the main extension axis 44 of the main handle 20.

The drive unit 36 is provided for driving the insert tool unit 42 of the portable power tool 10. Here, the portable power tool 10 has at least one output unit 70, by means of which the drive unit 36 is operatively connected to the insert tool unit 42 in a manner already known to a person skilled in the art. The output unit 70 comprises a transfer of drive forces and / or Drive torques from the drive unit 36 to the insert tool unit 42 at least one drive force transmission element (not shown here). The drive force transmission element is designed as a drive belt, in particular as a toothed belt. However, it is also conceivable that the drive force transmission element has another, to those skilled appear appropriate design, such as a configuration as a gear o. The like. The insert tool unit 42 is formed as a planer blade unit. In this case, the insert tool unit 42 has at least one cutting element 72 for removing workpiece particles of a workpiece to be machined (not shown here in detail). However, it is also conceivable that the insert tool unit 42 has more than one cutting element 72. The cutting element 72 is designed as a planer blade. In addition, the cutting element 72 is arranged on a rotational element 74 of the insert tool unit 42 in a manner known to a person skilled in the art. The rotation element 74 is designed as a planer shaft. Thus, the rotary member 74 is rotatably mounted in the machine tool housing 56, in particular in the two housing shell elements 60, 62. An axis of rotation 76 of the insert tool unit 42, in particular of the rotary element 74, extends at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16. In addition, the axis of rotation 76 of the insert tool unit 42 extends at least substantially, in particular completely, parallel to the drive axis 38 of FIG Drive unit 36.

Furthermore, the portable power tool 10 has at least the insert tool unit 42, wherein the drive unit 36, viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, is arranged for the most part above the insert tool unit 42. In this case, the drive unit 36 is arranged completely above the insert tool unit 42. In this case, the insert tool unit 42 and the drive unit 36, viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, a minimum distance from each other, which is greater than 1 mm, in particular greater than 10 mm.

Furthermore, the portable power tool 10 comprises at least one Werkstückabtragabführungseinheit 46, viewed along the at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16 extending direction 92, is arranged in front of the insert tool unit 42. The workpiece removal discharge unit 46 is disposed in front of the insert tool unit 42 as viewed along a direction opposite to a machine tool 10 processing direction along which the portable machine tool 10 is movable for machining a workpiece by an operator. Here, the Werkstückabtragabführungseinheit 46 is provided to promote by means of the insert tool unit 42 removed workpiece particles after removal from a Einsatzwerkzeugrotationsbereich the machine tool housing 56 and the machine tool housing 56 itself out. Workpiece particles are conveyed by the workpiece removal unit 46 by means of a rotational energy of the insert tool unit 42.

The Werkstückabtragabführungseinheit 46 includes for output of workpiece particles from the machine tool housing 56 at least one discharge channel 84, which connects a side facing away from the workpiece mounting unit 12 side of the machine tool housing 56 with the Einsatzwerkzeugrotationsbereich. In this case, the discharge channel 84 is provided for deflecting workpiece particles, which are removed from a workpiece by means of the insert tool unit 42, in such a way that the workpiece particles can be conveyed out of the machine tool housing 56. In this case, the discharge channel 84 extends at least substantially transversely to at least one of the workpiece abutment surfaces 14, 16 starting from the insert tool rotation region. The workpiece removal device 46 may also comprise more than one discharge channel 84 for conveying removed workpiece particles from the machine tool housing 56. In addition, the workpiece removal discharge unit 46 may comprise a flap unit by means of which an operator can divert removed workpiece particles into the various discharge channels 84 of the workpiece removal removal unit 46. Thus, by means of the flap unit, for example, on which side of the machine tool housing 56 removed workpiece particles can be conveyed out of the machine tool housing 56 by means of the workpiece removal discharge unit 46. The workpiece removal unit 46 further comprises at least one suction connection element 86, which is connectable to an external suction unit (not shown here). The suction connection element 86 is connected directly to the discharge channel 84. Here, the Absauganschlusselement 86 may be integrally formed with the machine tool housing 56 or be formed separately from the machine tool housing 56, wherein the Absauganschlusselement 86 is releasably connectable to the discharge channel 84. The suction connection element 86 extends, in particular in a state connected to the discharge channel 84, at least substantially transversely to at least one of the workpiece contact surfaces 14, 16. It is also conceivable that the suction connection element 86 is movably mounted on the machine tool housing 56. Furthermore, it is conceivable that a cooling air flow of a cooling unit of the drive unit 36 can be used to support a discharge of removed workpiece particles through the discharge channel 84.

Furthermore, the portable power tool 10 has at least one control and / or regulating unit 88. The control and / or regulating unit 88 in this case has at least one main circuit board 90, which is operatively connected to the switch element 66, which can be actuated by means of the operating element 82, and to the drive unit 36. The control and / or regulating unit 88 thus preferably forms power electronics of the portable power tool 10. The main circuit board 90 has a main extension axis which is at least substantially, in particular completely, parallel to at least one of the workpiece abutment surfaces 14, 16. The main circuit board 90 is here, viewed along the at least substantially perpendicular to at least one of the workpiece abutment surfaces 14, 16 extending direction 24, disposed between the center of gravity axis 28 and the workpiece mounting unit 12 in the machine tool housing 56.

For cooling the control and / or regulating unit 88, at least one cooling air channel of the cooling unit of the drive unit 36 extends from the drive unit 36 through the machine tool housing 56 to the control and / or regulating unit 88. In this case, the control and / or regulating unit 88 arranged on one of the immersion depth setting unit 58 facing away from the machine tool housing 56 in the machine tool housing 56. Air intake openings The cooling unit is arranged on a side of the machine tool housing 56 facing away from the workpiece contact unit 12, in particular in a transition region from the main handle 20 to a subregion of the machine tool housing 56, in which the drive unit 36 is mounted. Furthermore, air outlet openings of the cooling unit are arranged on the side of the machine tool housing 56 facing away from the immersion depth setting unit 58. The cooling air passage preferably extends through the main handle 20 to the air outlet openings of the cooling unit. The cooling air duct extends from the air inlet openings past the drive unit 36, in particular around it, through the main handle 20 and past the control and / or regulating unit 88, in particular around it, to the air outlet openings. Cooling air is thus by means of the cooling unit, which is designed in particular as a fan unit, sucked through the air inlet openings and through the cooling air duct to the air outlet openings, where the heated by the waste heat of the drive unit 36 and the control and / or regulating unit 88 cooling air back out of the Machine tool housing 56 exits. The control and / or regulating unit 88 can thus be actively cooled by means of the cooling unit of the drive unit 36.

Claims (15)

Portable machine tool, in particular hand planing machine, having at least one workpiece placement unit (12) having at least one workpiece abutment surface (14, 16) and at least one handle assembly (18) having at least one main handle (20), characterized in that the main handle ( 20) has at least one maximum distance point (22) which, viewed along a direction (24) extending at least substantially perpendicular to the at least one workpiece abutment surface (14, 16), has a maximum distance (26) from the at least one workpiece abutment surface (14, 16 ), which is smaller than 150 mm. Portable machine tool according to claim 1, characterized in that the maximum distance point (22), viewed along the at least substantially perpendicular to the at least one workpiece abutment surface (14, 16) extending direction (24), a maximum distance (26) to the at least one workpiece abutment surface (14, 16) which is smaller than 120 mm. Portable machine tool according to one of the preceding claims, characterized by at least one center of gravity axis (28) extending at least substantially parallel to the at least one workpiece abutment surface (14, 16) and viewed along the at least substantially perpendicular to the at least one workpiece abutment surface (14, 16 ) extending direction (24), a maximum distance (30) to the maximum distance point (22) which is smaller than 90 mm. Portable machine tool according to one of the preceding claims, characterized by at least one center of gravity axis (28) and at least one drive unit (36), viewed along the at least substantially perpendicular to the at least one workpiece abutment surface (14, 16) extending direction (24), at least is arranged for the most part above the center of gravity axis (28). Portable machine tool according to one of the preceding claims, characterized by at least one drive unit (36) which has at least one drive axle (38) which, viewed along the at least substantially perpendicular to the at least one workpiece abutment surface (14, 16) extending direction (24) , a minimum distance (40) to the at least one workpiece abutment surface (14, 16) which is greater than 45 mm. Portable machine tool according to one of the preceding claims, characterized by at least one insert tool unit (42) and at least one drive unit (36) for driving the insert tool unit (42), the drive unit (36), viewed along the at least substantially perpendicular to the at least one Workpiece contact surface (14, 16) extending direction (24), for the most part above the insert tool unit (42) is arranged. Portable machine tool according to one of the preceding claims, characterized by at least one drive unit (36) which has at least one drive axle (38) which intersects a main extension axis (44) of the main handle (20). Portable machine tool according to one of the preceding claims, characterized by at least one drive unit (36) which is designed as EC motor unit. Portable machine tool according to one of the preceding claims, characterized by at least one control and / or regulating unit (88) which, viewed along the at least substantially perpendicular to at least the workpiece abutment surface (14, 16) extending direction (24), between a center axis ( 28) and the workpiece mounting unit (12) is arranged. Portable machine tool according to one of the preceding claims, characterized by at least one insert tool unit (42) and at least one Werkstückabtragabführungseinheit (46), viewed along a at least substantially parallel to the at least one workpiece abutment surface (14, 16) extending direction (92) before the insert tool unit (42) is arranged. Portable machine tool according to one of the preceding claims, characterized by at least one energy storage receiving unit (48) which is arranged for the most part in the main handle (20). Portable machine tool according to claim 11, characterized in that the energy storage receiving unit (48) has at least one energy storage guide element (50) having an at least substantially parallel to the at least one workpiece abutment surface (14, 16) extending main extension. Machine tool system (52) having at least one portable power tool according to one of the preceding claims and having at least one energy storage unit (54) which is in a state arranged on the portable power tool, viewed along the at least substantially perpendicular to the at least one workpiece abutment surface (14, 16). extending direction (24), at least substantially completely above a gravity axis (28) of the portable power tool is arranged. Machine tool system according to claim 13, characterized by a maximum total mass which is smaller than 1.5 kg. Machine tool system according to claim 13 or 14, characterized by a maximum longitudinal extent which is smaller than 230 mm.

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