CN109563713B

CN109563713B - Portable machine tool

Info

Publication number: CN109563713B
Application number: CN201780049050.0A
Authority: CN
Inventors: C·H·梁; S·W·吴; M·施图姆; S·施文德; B·A·M·海鲁尔; C·W·亚普; P·P·莱
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2016-08-09
Filing date: 2017-07-06
Publication date: 2022-06-07
Anticipated expiration: 2037-07-06
Also published as: CN109563713A; DE102016214732A1; WO2018028898A1

Abstract

The invention relates to a portable power tool having at least one housing unit (12) and at least one guide unit (14) arranged on, in particular in, the housing unit (12) for guiding at least one wrapping material (16) provided for fixing at least two workpieces, in particular reinforcing elements, to one another. The invention proposes that the guide unit (14) is at least partially formed integrally with the housing unit (12).

Description

Portable machine tool

Background

EP 2280136 a2 discloses a portable power tool, in particular a reinforcement strapping apparatus, which includes a housing unit and at least one guide unit arranged in the housing unit for guiding at least one winding material provided for fixing at least two workpieces, in particular reinforcement elements, to one another. The guide unit is configured separately from the housing unit and is arranged therein.

Disclosure of Invention

The invention is based on a portable power tool, in particular a reinforcement strapping apparatus, having at least one housing unit and at least one guide unit arranged on, in particular in, the housing unit for guiding at least one wrapping material provided for fixing at least two workpieces, in particular reinforcement elements, to one another.

The invention provides that the guide unit is at least partially formed in one piece with the housing unit. The terms: a unit is constructed "at least partially in one piece" with another unit, in particular it is to be understood that at least one element of the unit is constructed in one piece with an element of the other unit. Preferably, the entire guide unit is constructed in one piece with the housing unit. "integrally" is to be understood in particular to mean an at least cohesive connection, for example by means of a welding process, a bonding process, an injection molding process and/or other processes which appear to be relevant to the person skilled in the art, and/or to mean an advantageous shaping in one part, for example by production from a cast part and/or by production in a single-component or multi-component injection method and advantageously from a single blank. The portable power tool has at least one housing unit, which is to be understood in particular to mean that the portable power tool has at least one motor and/or transmission housing unit which is provided for receiving and/or supporting the drive unit and/or the output unit. "provided" is to be understood in particular as being designed and/or equipped in particular. The object is provided with a specific function, which is to be understood in particular to mean that the object satisfies and/or implements the specific function in at least one application and/or operating state. The portable power tool may have further housing units, for example a power supply housing unit, a handle housing unit, etc. The further housing unit can be separate from the housing unit or can be formed in one piece with the housing unit.

The guide unit is preferably arranged on an inner wall of the housing unit, in particular at least partially formed integrally with the inner wall of the housing unit. The inner wall of the housing unit is preferably arranged on a side of the housing unit which, in the assembled state of the portable power tool, faces the drive unit, the output unit, the electronic component unit and/or other components of the portable power tool which are arranged in the housing unit. The housing unit is preferably made of plastic. The guide unit is preferably made of plastic. However, it is also conceivable for the housing unit and/or the guide unit to be composed of other materials which appear expedient to the person skilled in the art, for example of metals, non-ferrous metals, alloys, mixed materials, etc.

The winding material is preferably configured as a winding, in particular as a wire. However, it is also conceivable for the wrapping material to have other configurations which appear to be of interest to the person skilled in the art, for example as a wire, a tape or the like. A "portable power tool" is to be understood here to mean, in particular, a power tool for machining a workpiece, which can be transported by an operator without a transport machine. The portable power tool has a mass of less than 40kg, preferably less than 10kg and particularly preferably less than 5 kg. The portable power tool is preferably designed as a reinforcement strapping machine. However, other configurations of the portable power tool are also conceivable, which would appear to be useful to the person skilled in the art, for example as a tacker, a stapler, a winding machine, etc.

Preferably, at least two workpieces designed as reinforcing elements, in particular as steel reinforcing elements, are fixed to one another by winding with a winding material, in particular in a manner known to the person skilled in the art. However, differently configured workpieces, such as bamboo support rods, wood support rods, thin sticks, etc., can also be fastened to one another by means of a wrapping material. Preferably, the winding material is wound on a roller which can be arranged on the portable power tool. Preferably, the winding material can be guided by means of a material supply unit of the portable power tool in a manner known to the person skilled in the art via a guide unit to a production unit of the portable power tool, in particular in order to be able to achieve a fixing of the two workpieces, in particular due to the winding of the workpieces by means of the winding material.

With the configuration of the portable power tool according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. A compact arrangement of the guide unit on the housing unit is advantageously possible. Advantageously, the available installation space can be used advantageously. A reliable guidance of the wrapping material in the housing unit can advantageously be achieved.

Furthermore, it is proposed that the guide unit has at least one guide element which is formed integrally with an inner wall of a housing element of the housing unit. The guide element preferably comprises at least one guide groove. Preferably, the guide groove has a conical course (Verlauf), viewed in a plane running at least substantially perpendicular to the connecting plane of the two housing elements of the housing unit. However, it is also conceivable for the guide groove to have a further course, which appears to be meaningful to the person skilled in the art, as viewed in a plane running at least substantially perpendicularly to the connecting plane of the two housing elements of the housing unit, which course tapers from the side of the guide unit facing the material supply unit of the portable power tool to the side of the guide unit facing away from the material supply unit. The term "substantially perpendicular" is intended here to define, in particular, an orientation of a direction relative to a reference direction, wherein the direction and the reference direction (in particular viewed in a plane) enclose an angle of 90 ° and the angle has a maximum deviation of, in particular, less than 8 °, advantageously less than 5 °, particularly advantageously less than 2 °. Preferably, the guide groove at least partially constitutes a guide channel of the guide unit, in which the winding material can be guided. The guide element is preferably integrally formed on the inner wall at least one support element of the guide unit which is integrally formed on the inner wall. The support element is preferably formed integrally with the guide element. The support element is preferably arranged on the side of the guide element facing away from the guide groove. The support element is preferably designed as a support rib or support web. However, it is also conceivable for the support element to have another configuration which appears to be expedient to the person skilled in the art. It is also conceivable for the guide element to be molded directly onto the inner wall of the housing element, decoupled from the at least one support element. With the configuration according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. A compact arrangement of the guide unit on the housing unit is advantageously possible. Advantageously, the available installation space can be used advantageously. A reliable guidance of the wrapping material in the housing unit can advantageously be achieved.

Furthermore, it is proposed that the guide unit comprises at least two guide elements which are arranged on the two housing elements of the housing unit, wherein the guide channel of the guide unit can be formed as a result of the connection of the two housing elements by means of the guide elements. Preferably, each of the at least two guide elements is formed in one piece with an inner wall of one of the housing elements. The inner walls of the housing elements, on which in each case one of the at least two guide elements is arranged, face each other in the state in which the housing elements are connected to each other. The housing elements are configured as housing shells which can be connected to one another in a connecting plane of the housing unit, in particular for forming a motor and/or transmission housing unit of a portable power tool. The guide channel preferably has a conical shape, viewed in a plane running at least substantially perpendicularly to the connection plane. Preferably, the guide channel has a tapering course, viewed in a plane running at least substantially perpendicularly to the connecting plane of the two housing elements of the housing unit, in a direction running from the side of the guide unit facing the material supply unit of the portable power tool towards the side of the guide unit facing away from the material supply unit. With the configuration according to the invention, a configuration of the guide unit inside the housing unit can be advantageously achieved. It is advantageously possible to save components, assembly expenditure and thus production costs. Advantageously, a compact arrangement of the guide unit on the housing unit can be achieved. Advantageously, the available installation space can be used advantageously. A reliable guidance of the wrapping material in the housing unit can advantageously be achieved.

Furthermore, it is proposed that the portable power tool comprises at least one cutting unit for severing the wrapping material and at least one deflection unit for deflecting the wrapping material in order to be able to effect a wrapping of the workpiece by means of the wrapping material, wherein at least one cutting element and/or a counter-cutting element of the cutting unit is arranged on the deflection unit. In order to solve the object according to the invention, it is conceivable that the portable power tool is designed separately from a guide unit, which is designed at least in one piece with the housing unit, in an alternative embodiment. Preferably, in the alternative configuration, in particular in a configuration which is configured separately from a guide unit which is configured at least in one piece with the housing unit, the portable power tool comprises at least one housing unit, at least one guide element which is arranged on the housing unit, in particular in the housing unit, for guiding at least one wrapping material which is provided for fixing at least two workpieces, in particular reinforcing elements, to one another, at least one cutting unit for severing the wrapping material, and at least one deflection unit for deflecting the wrapping material in order to enable a wrapping of the workpieces by means of the wrapping material, wherein at least one cutting element and/or a corresponding cutting element of the cutting unit is arranged on the deflection unit. The cutting unit can be configured as a double-edged cutting unit comprising at least two cutting elements with cutting edges, or as a single-edged cutting unit comprising at least one cutting element with cutting edges and a counter-cutting element with an outer edge co-acting with the cutting edges. Other configurations of the cutting unit that appear to be meaningful to those skilled in the art are also contemplated. The deflection unit is preferably arranged on a beak-shaped output element of the portable power tool. Preferably, the deflection unit comprises at least one deflection element comprising an arc-shaped guide rail for the winding material. Preferably, the winding material can be guided to the winding unit by the guide unit. With the configuration according to the invention, additional elements for guiding and/or supporting the cutting element and/or the counter-cutting element can advantageously be dispensed with. It is advantageously possible to save components, assembly expenditure and thus production costs. Advantageously, a compact arrangement of the cutting unit on the deflection unit can be achieved. Advantageously, the available installation space can be used advantageously.

Furthermore, it is proposed that the cutting element be mounted movably on a deflecting element of the deflecting unit. Preferably, the cutting element is pivotably supported on the deflecting element. Preferably, the movement axis, in particular the pivot axis, of the cutting element runs transversely, in particular at least substantially perpendicularly, to the guide axis and/or the main guide direction of the guide unit. The cutting element is preferably arranged on a pivot arm which is pivotably and movably supported on the deflecting element, in particular is configured in one piece with the pivot arm. However, it is also conceivable for the cutting element to be arranged removably on the pivot arm. With the configuration according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. Advantageously, a compact arrangement of the cutting unit on the deflection unit can be achieved. Advantageously, the available installation space can be used advantageously.

Furthermore, it is proposed that the cutting element and/or the counter-cutting element be arranged in the vicinity of the outlet opening of the deflection unit. Preferably, the fixed winding material for the at least two workpieces is output from an output opening of the deflection unit. The output opening is arranged in particular at the end of the beak output element of the portable power tool facing away from the housing unit. "vicinity" is to be understood to mean, in particular, a region having a maximum distance, relative to the outlet opening, of, in particular, less than 100mm, preferably less than 80mm, and particularly preferably less than 50 mm. With the configuration according to the invention, retention of the winding material in the deflection unit due to detached residues of the winding material can advantageously be avoided to the greatest possible extent. The risk of blockage of the deflection unit due to detached residues of the winding material can be advantageously counteracted. It is advantageously possible to save components, assembly expenditure and thus production costs. Advantageously, a compact arrangement of the cutting unit on the deflection unit can be achieved. Advantageously, the available installation space can be used advantageously.

Furthermore, it is proposed that the deflection unit has at least one deflection element with at least one cutting element receptacle into which a cutting element of the cutting unit for severing the wrapping material engages at least partially. Preferably, the cutting element for severing the wrapping material is at least partially movable into the cutting element receptacle. The deflection element is arranged in particular in the vicinity of the output opening of the output element. Preferably, the deflection element is arranged directly adjacent to the output opening of the output element. With the configuration according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. Advantageously, a compact arrangement of the cutting unit on the deflection unit can be achieved. Advantageously, the available installation space can be used advantageously.

Furthermore, it is proposed that the portable power tool comprises at least one deflection unit for deflecting the winding material in order to enable the winding of the workpiece by means of the winding material, the deflection unit being arranged directly adjacent to the guide unit. It is conceivable that, in order to solve the object according to the invention, in an alternative embodiment, the portable power tool is designed separately from the guide element, which is designed at least in one piece with the housing unit. Preferably, in the alternative configuration, in particular in a configuration which is constructed separately from a guide element which is constructed at least in one piece with the housing unit, the portable power tool comprises at least one housing unit, at least one guide unit which is arranged on, in particular in, the housing unit for guiding at least one wrapping material which is provided for fixing at least two workpieces, in particular a reinforcing element, to one another, and at least one deflection unit for deflecting the wrapping material to enable a wrapping of the workpieces by means of the wrapping material, which deflection unit is arranged directly adjacent to the guide unit. "directly adjoining" is to be understood to mean, in particular, an arrangement of at least two components, wherein the minimum distance between the at least two components is, in particular, less than 5mm, preferably less than 2mm, and particularly preferably less than 0.5 mm. Particularly preferably, the deflection unit bears directly against the guide unit. Preferably, the guide channel of the guide unit transitions into the guide channel of the deflection unit as free of play as possible. Preferably, the guide channel of the deflection unit, which is arranged in particular on the deflection element, opens into the outlet opening of the outlet element. With the configuration of the portable power tool according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. Advantageously, a compact arrangement of the guiding unit and the deflection unit is enabled. Advantageously, the available installation space can be used advantageously. A reliable guidance of the wrapping material in the housing unit can advantageously be achieved.

It is furthermore proposed that the portable power tool comprises at least one cutting unit for severing the wound material, which cutting unit comprises at least one movably mounted cutting element and at least one spring element which acts on the cutting element with a spring force and which has a longitudinal axis which runs at least substantially parallel to the axis of movement of the cutting element. It is conceivable that, in order to solve the object according to the invention, in an alternative embodiment, the portable power tool is designed separately from the guide element, which is designed at least in one piece with the housing unit. Preferably, in the alternative configuration, in particular in a configuration which is configured separately from the guide element which is configured at least in one piece with the housing unit, the portable power tool comprises at least one housing unit, at least one guide unit which is arranged on, in particular in, the housing unit for guiding at least one wrapping material which is provided for fixing at least two workpieces, in particular the reinforcing element, to one another, and at least one cutting unit for severing the wrapping material, which comprises at least one movably mounted cutting element and at least one spring element which acts on the cutting element with a spring force, which spring element has a longitudinal axis which runs at least substantially parallel to the movement axis of the cutting element. A "spring element" is to be understood to mean, in particular, a macroscopic element which generates, in particular, a counter force which is associated with a change in the extension dimension and is preferably proportional to the change, which counter force counteracts the change, in order, in particular, to shape the element back into the original shape as far as possible. Preferably, the longitudinal axis of the spring element runs transversely, in particular at least substantially perpendicularly, to the guide axis and/or the main guide direction of the guide unit. Preferably, the longitudinal axis of the spring element runs coaxially to the movement axis of the cutting element, in particular of the pivot arm. With the configuration of the portable power tool according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. Advantageously, a compact arrangement of the cutting unit can be achieved. Advantageously, the available installation space can be used advantageously.

Furthermore, it is proposed that the spring element is designed as a torsion spring element which is supported with one end on the housing unit and with the other end on the cutting element. Preferably, the spring element is arranged on a support element of the cutting unit. The spring element preferably surrounds, in particular winds, the support element of the cutting unit. The support element of the cutting unit is preferably designed as a support pin or as a support bolt. The support element is preferably provided for pivotably supporting the pivot arm. The bearing element can be formed integrally with the pivot arm or the pivot arm has a receptacle in which the bearing element for pivotably supporting the pivot arm can be arranged. With the configuration of the portable power tool according to the invention, components, assembly expenditure and thus production costs can advantageously be saved. Advantageously, a compact arrangement of the cutting unit can be achieved. Advantageously. Advantageously, the available installation space can be used advantageously.

The portable power tool according to the invention is not limited to the applications and embodiments described above. In order to satisfy the operating modes described here, the portable power tool according to the invention may have a number that differs from the number of individual elements, components and units and method steps described here. Furthermore, given the range of values given in this disclosure, values that lie within the stated limits should also be considered disclosed and disposable.

Drawings

Further advantages result from the following description of the figures. Embodiments of the invention are illustrated in the drawings. The person skilled in the art can also, in line with the objective, consider the features individually and summarize them into meaningful further combinations. Shown in the drawings are:

figure 1 shows a portable power tool according to the invention in a schematic view,

fig. 2 shows a schematic representation of a sectional view of the housing unit and the guide unit of the hand-held power tool according to the invention in a plane running transversely to the connection plane of the housing unit,

fig. 3 shows a schematic representation of a sectional view of a guide element of a guide unit, which is formed in one piece with a housing element of a housing unit, wherein a sectional plane runs transversely to the sectional plane according to fig. 2,

figure 4a shows a detailed view of the deflection unit and the cutting unit arranged thereon of the portable power tool according to the invention in a schematic view,

figure 4b shows a detailed view of an alternative configuration of the deflection unit of the portable power tool according to the invention in a schematic view,

figure 4c shows a detail view of a further alternative configuration of the deflection unit of the portable power tool according to the invention in a schematic representation,

fig. 5 shows a detailed view of the cutting unit of the portable power tool according to the invention in a schematic view.

Detailed Description

Fig. 1 shows a portable power tool 10. The portable power tool 10 is designed as a portable power tool that can be operated by means of a battery. However, it is also conceivable that the portable power tool 10 is alternatively designed as a portable power tool that can be operated in a cable-engaging manner. The portable power tool 10 is designed as a reinforcement strapping machine. However, other configurations of the portable power tool 10 that appear to be useful to a person skilled in the art are also conceivable, for example as a stapler, a winding machine, etc. The portable power tool 10 comprises at least one housing unit 12. The housing unit 12 is preferably designed as a housing unit. However, it is also conceivable for the housing unit 12 to be designed as a tank housing unit. The housing unit 12 is preferably provided for receiving and/or supporting at least one drive unit 52 of the portable power tool 10. The drive unit 52 is in particular designed as a motor unit, in particular as an EC motor unit. However, it is also conceivable for the drive unit 52 to have other configurations which would be apparent to the person skilled in the art, for example as a pneumatic motor unit, an internal combustion engine unit, a hybrid motor unit or the like.

The housing unit 12 is preferably provided for receiving and/or supporting a driven unit 54 of the portable power tool 10. The output unit 54 is preferably designed as a gear unit. The output unit 54 is provided in particular for conveying, twisting and/or separating the wrapping material 16 in a manner known to the person skilled in the art as a result of the interaction with the drive unit 52, in order to fix at least two workpieces (not shown in detail here), in particular at least two reinforcing elements, to one another, in particular in a manner known to the person skilled in the art. The portable power tool 10 preferably includes a material supply unit 56 for receiving and/or conveying the wrapping material 16. The material supply unit 56 is disposed on the housing unit 12. The material supply unit 56 can be driven by means of the drive unit 52 and/or the driven unit 54 in a manner known to the person skilled in the art. The wrapping material 16 is arranged, in particular wound, on a receiving element 58, in particular on a roller, in a manner known to the person skilled in the art. The receiving element 58 can be arranged on the housing unit 12 in a manner known to the person skilled in the art in a movable, in particular rotatable, manner by means of the material supply unit 56. By means of a material supply unit 56, which can be driven in a manner known to the person skilled in the art, in particular by means of the interaction of the drive unit 52 and the output unit 54, the wrapping material 16 can be transported for fixing, in particular for wrapping, workpieces, in particular reinforcing elements.

Fig. 2 shows a sectional view of the portable power tool 10, in particular of the housing unit 12. The portable power tool 10 comprises at least one guide unit 14 arranged on, in particular in, the housing unit 12 for guiding at least one wrapping material 16 provided for fixing at least two workpieces, in particular at least two reinforcing elements, to one another. The guide unit 14 is at least partially formed integrally with the housing unit 12. The guide unit 14 is in particular completely molded on at least one

inner wall

22, 24 of the housing unit 12. However, it is also conceivable for the guide unit 14 to be formed only partially on at least one

inner wall

22, 24 of the housing unit 12, the guide unit 14 being arranged at least partially in one piece on the at least one

inner wall

22, 24 by means of a material-locking connection, for example by means of gluing, soldering, welding or the like.

The guide unit 14 has at least one

guide element

18, 20, which is formed integrally with the

inner walls

22, 24 of the

housing elements

26, 28 of the housing unit 12. The at least one

guide element

18, 20 preferably comprises at least one

guide groove

60, 62. The

guide grooves

60, 62 have a conical course, viewed in a plane running at least substantially perpendicularly to the connecting plane 64 of the at least two

housing elements

26, 28 of the housing unit 12 (fig. 3). However, it is also conceivable for the

guide grooves

60, 62 to have a different course, which appears to be expedient to the person skilled in the art, as viewed in a plane which runs at least substantially perpendicularly to the connecting plane 64 of the two

housing elements

26, 28 of the housing unit 12, which course tapers from the side of the guide unit 14 facing the material supply unit 56 of the portable power tool 10 to the side of the guide unit 14 facing away from the material supply unit 56. Preferably, the

guide grooves

60, 62 at least partially constitute the guide channel 30 of the guide unit, in which the winding material 16 can be guided. The at least one

guide element

18, 20 is preferably integrally formed on the

inner wall

22, 24 by at least one

support element

66, 68, 70, 72 of the guide unit 14 integrally formed on the

inner wall

22, 24. Preferably, the

support elements

66, 68, 70, 72 are formed integrally with the at least one

guide element

18, 20. Preferably, the

support elements

66, 68, 70, 72 are arranged on a side of the

guide elements

18, 20 facing away from the

guide grooves

60, 62. The

support elements

66, 68, 70, 72 are preferably designed as support ribs or support webs. However, it is also conceivable for the

support elements

66, 68, 70, 72 to have other configurations which appear to be of interest to the person skilled in the art. It is also conceivable for the

guide elements

18, 20 to be molded directly onto the

inner walls

22, 24 of the

housing elements

26, 28 decoupled from the at least one

support element

66, 68, 70, 72.

The guide unit 14 comprises at least two

guide elements

18, 20, which are each arranged on one of the two

housing elements

26, 28 of the housing unit 12, wherein a guide channel 30 of the guide unit 14 can be formed as a result of the connection of the two housing elements 26 by means of the

guide elements

18, 20. However, it is also conceivable for the guide unit 14 to have a number of

guide elements

18, 20 different from two, which are formed in one piece with at least one

housing element

26, 28 of the housing unit 12 and in particular interact with one another to form a guide channel 30. Preferably, each of the at least two

guide elements

18, 20 is formed in one piece with the

inner wall

22, 24 of one of the

housing elements

26, 28. The

inner walls

22, 24 of the

housing elements

26, 28, on which one of the at least two

guide elements

18, 20 is arranged in each case, face each other in the state in which the

housing elements

26, 28 are connected to each other. The

housing elements

26, 28 are designed as housing shells which can be connected to one another in a connecting plane 64 of the housing unit 12, in particular for forming a motor and/or gear housing unit of the portable power tool 10. The guide channel 30 has a conical shape, viewed in a plane running at least substantially perpendicularly to the connecting plane 64. Preferably, the guide channel 30, viewed in a plane running at least substantially perpendicularly to the connecting plane 64 of the two

housing elements

26, 28 of the housing unit 12, has a tapering course in a direction running from the side of the guide unit 14 facing the material supply unit 56 of the portable power tool 10 toward the side of the guide unit 14 facing away from the material supply unit 56.

Furthermore, the portable power tool 10 comprises at least one cutting unit 32 for severing the wrapping material 16 and at least one

deflection unit

34, 34', 34 "(see fig. 4a, 4b, 4c) for deflecting the wrapping material 16 in order to enable a workpiece to be wrapped by means of the wrapping material 16, wherein at least one cutting element 36 and/or a corresponding cutting element 38 of the cutting unit 32 is arranged on the

deflection unit

34, 34', 34 ″. In the following, the winding unit 34 shown in fig. 4a is explained in particular, wherein the winding units 34', 34 ″ shown in fig. 4b and 4c are at least substantially similarly configured, so that the explanations given here also relate to the winding units 34', 34 ″ of fig. 4b and 4 c. The cutting element 36 is preferably movably supported. The cutting element 36 is mounted movably on a deflection element 40 of the deflection unit 34. The cutting element 36 comprises, in particular, a cutting edge 74 for severing the wrapping material 16. The cutting elements 36 are arranged for co-acting with corresponding cutting elements 38 in a manner known to the person skilled in the art in order to sever the wrapping material 16. The respective cutting element 38 is configured as a respective cutting edge. The counter cutting element 38 is formed in one piece with the deflection element 40. Preferably, the corresponding cutting element 38 delimits the cutting element receptacle 44 of the deflecting element 40. The deflection element 34 is arranged in particular on a beak-shaped output element 76 of the portable power tool 10 in a manner known to the person skilled in the art. The output element 76 is arranged in particular on the housing unit 12. The deflection element 40 is preferably provided for bending the wrapping material 16 in order to enable the wrapping of the workpiece by the wrapping material 16. The deflecting element 40 has at least one cutting element receptacle 44, into which the cutting element 36 of the cutting unit 32 for severing the wrapping material 16 engages at least partially (see fig. 4 a).

Fig. 4b shows an alternative configuration of the deflection unit 34', wherein reference can be made to the previous description of the deflection unit 34 of fig. 4a with regard to the unchanged function of the deflection unit 34' of fig. 4 b. The deflecting unit 34 'shown in fig. 4b comprises at least one deflecting element 40' which is formed integrally with the insertion element of the cutting unit 32. The introduction element is provided for the targeted supply of the winding material 16 to the cutting element 36 and the counter-cutting element 38. The introducer member includes a tapered supply channel disposed adjacent to the cutting member receiving portion 44.

Fig. 4c shows a further alternative configuration of the deflection unit 34", wherein reference can be made to the previous description of the deflection unit 34 of fig. 4a with regard to the unchanged function of the deflection unit 34" of fig. 4 c. The deflection unit 34 ″ shown in fig. 4c, which is arranged directly adjacent to the guide unit 14, serves to deflect the wrapping material 16 in order to enable the wrapping of the workpiece by means of the wrapping material 16. The deflection unit 34 ″ comprises in particular a deflection element 40 ″ which is arranged directly adjacent to the guide unit 14, in particular on the at least two

guide elements

18, 20, in particular inside the housing unit 12 and/or the output element 76. The cutting element 36 and/or the counter-cutting element 38 are arranged in the vicinity of the outlet opening 42 of the deflection unit 34 "in the deflection element 40" shown in fig. 4 c. The cutting element 36 and/or the counter-cutting element 38 are arranged in the bending region of the beak-shaped output element 76 in the deflecting element 40 ″ shown in fig. 4 c.

Fig. 5 shows a detailed view of the cutting unit 32 for severing the wrapping material 16. The cutting unit 32 comprises at least a movably mounted cutting element 36 and at least one spring element 46 which acts on the cutting element 36 with a spring force and which has a longitudinal axis 48 which runs at least substantially parallel to an axis of movement 50 of the cutting element 36. The cutting element 36 is preferably arranged on a pivot arm 78 which is pivotably and movably supported on the

deflection element

40, 40', 40 ″, in particular being configured in one piece with the pivot arm 78. However, it is also conceivable for the cutting element 36 to be arranged removably on the pivot arm 78. The pivoting movement of the pivot arm 78 against the spring force of the spring element 46 is effected in a manner known to the person skilled in the art by means of a cam 80 of the driven unit 54 acting on the pivot arm. The cam 80 is arranged eccentrically on a driven wheel 82 of the driven unit 54 in a manner known to the person skilled in the art, in particular is connected in a rotationally fixed manner to the driven wheel 82.

The spring element 46 is designed as a torsion spring element which is supported at one end on the housing unit 12 and at the other end on the cutting element 36. Preferably, the longitudinal axis 48 of the spring element 46 runs transversely, in particular at least substantially perpendicularly, to the guide axis and/or the main guide direction of the guide unit 14. Preferably, the longitudinal axis 48 of the spring element 46 extends coaxially with the movement axis 50 of the cutting element 32, in particular the pivot arm 76. Preferably, the spring element 46 is arranged on the support element 84 of the cutting unit 32. The spring element 46 preferably surrounds, in particular winds, the support element 84 of the cutting unit 32. The bearing elements 84 of the cutting unit 32 are preferably designed as bearing pins or bearing pins. Support member 84 is preferably provided for pivotally supporting pivot arm 78. The bearing element 84 may be formed integrally with the pivot arm 78, or the pivot arm 78 has a receptacle in which the bearing element 84 for movably supporting the pivot arm 78 can be arranged.

Claims

1. Portable power tool having at least one housing unit (12) and at least one guide unit (14) arranged on the housing unit (12), the guiding unit is used for guiding at least one winding material (16) which is provided for fixing at least two workpieces to each other, characterized in that the guide unit (14) is at least partially formed integrally with the housing unit (12), wherein the guide unit (14) comprises at least two guide elements (18, 20) which are each arranged on one of two housing elements (26, 28) of the housing unit (12), wherein a guide channel (30) of the guide unit (14) can be formed as a result of the connection of the two housing elements (26, 28) by means of the guide elements (18, 20).

2. The portable power tool according to claim 1, characterized in that the guide unit (14) has at least one guide element (18, 20) which is formed integrally with an inner wall (22, 24) of a housing element (26, 28) of the housing unit (12).

3. The portable power tool according to claim 1 or 2, characterized in that at least one cutting unit (32) for severing the wrapping material (16) and at least one deflection unit (34; 34'; 34") for deflecting the wrapping material (16) in order to enable the workpiece to be wrapped by the wrapping material (16) are provided, wherein at least one cutting element (36) and/or a corresponding cutting element (38) of the cutting unit (32) is arranged on the deflection unit (34).

4. Portable power tool according to claim 3, characterized in that the at least one cutting element (36) is movably supported on a deflection element (40; 40 '; 40") of the deflection unit (34; 34'; 34").

5. Portable power tool according to claim 3, characterized in that the at least one cutting element (36) and/or the corresponding cutting element (38) is arranged in the vicinity of the output opening (42) of the deflection unit (34 ").

6. The portable power tool as claimed in claim 3, characterized in that the deflection unit (34; 34 '; 34") has at least one deflection element (40; 40'; 40") which has at least one cutting element receptacle (44) into which the at least one cutting element (36) of the cutting unit (32) for severing the wrapping material (16) engages at least partially.

7. The portable power tool according to claim 1 or 2, characterized in that at least one deflection unit (34") is provided for deflecting the winding material (16) in order to enable the workpiece to be wound by means of the winding material (16), which deflection unit is arranged directly adjacent to the guide unit (14).

8. Portable power tool according to claim 1 or 2, characterized in that at least one cutting unit (32) for severing the wrapping material (16) is provided, which cutting unit comprises at least one movably mounted cutting element (36) and at least one spring element (46) which acts on the at least one cutting element (36) with a spring force and which has a longitudinal axis (48) running parallel to a movement axis (50) of the at least one cutting element (36).

9. The portable power tool according to claim 8, characterized in that the spring element (46) is designed as a torsion spring element which is supported with one end on the housing unit (12) and with the other end on the at least one cutting element (36).

10. The portable power tool of claim 1 or 2, wherein the portable power tool is a reinforcement strapping machine.

11. Portable power tool according to claim 1 or 2, characterized in that the at least one guide unit (14) is arranged in the housing unit (12).

12. Portable power tool according to claim 1 or 2, characterized in that the at least one wrapping material (16) is provided for fixing at least two reinforcement elements to each other.