CN114901425A

CN114901425A - Hand-held power tool device, hand-held power tool having a hand-held power tool device, and accessory having a hand-held power tool device

Info

Publication number: CN114901425A
Application number: CN202080090552.XA
Authority: CN
Inventors: M·卢茨; T·朔米施; K·马塔尔
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2019-12-30
Filing date: 2020-11-30
Publication date: 2022-08-12
Also published as: WO2021136624A1; US20230025492A1; DE102019220621A1; EP4084928A1

Abstract

The invention relates to a hand-held power tool device (10a-g) for a hand-held power tool (50a), in particular an angle grinder, comprising at least one attachment hood (12a-g) for connecting to a protective hood (14a-g) in order to at least partially cover a working tool (16a) of the hand-held power tool (50 a). It is proposed that the attachment cover (12a-g) has at least one form-locking element (18a-g) which is provided for interacting with a rim-like and free-standing outer region (22a-g) of the protective cover (14a-g) extending in the circumferential direction (20a-g) and at least contributes to the connection.

Description

Hand-held power tool device, hand-held power tool having a hand-held power tool device, and accessory having a hand-held power tool device

Technical Field

A hand-held power tool device for a hand-held power tool, in particular an angle grinder, has already been proposed, which has at least one attachment cover for connecting to a protective cover in order to at least partially cover a working tool of the hand-held power tool.

Background

Disclosure of Invention

The invention proceeds from a hand-held power tool device for a hand-held power tool, in particular an angle grinder, having at least one attachment cover for connecting to a protective cover in order to at least partially cover a working tool of the hand-held power tool.

It is proposed that the attachment cover has at least one form-locking element which is provided to interact with a rim-like and free-standing outer region of the protective cover extending in the circumferential direction and at least contributes to the connection.

Advantageously, the configuration of the hand-held power tool device according to the invention allows for an improved operating comfort for the user. In particular, the attachment cover is particularly easy and/or quick to mount on the protective cover by means of a connection of the attachment cover on the protective cover by means of the form-locking element. Furthermore, advantageously, a hand-held power tool device with a high degree of functionality and flexibility can be provided. On the one hand, the protective hood can be used as a roughing and/or grinding protective hood without an attached hood and can also be used in connection with an attached hood as a separate protective hood. Furthermore, advantageously, the operational safety for the user can be increased. In particular, the particularly simple and quick connection advantageously enables the user to be motivated to comply with work safety regulations for work, which provide for the use of a separate protective hood. Furthermore, the production costs and thus also the acquisition costs for the user can advantageously be reduced. In particular, the attached shield is cheaper to manufacture than a complete integrally constructed separate shield. Furthermore, the attachment cover is advantageously compatible with most common and commercially available protective covers, so that a user, by purchasing an accessory with the hand-held power tool device according to the invention, can advantageously supplement all of his protective covers for hand-held power tools with the attachment cover and can use them in combination with the attachment cover as a separate protective cover.

A "hand-held power tool device" is to be understood to mean, in particular, a part of a hand-held power tool, in particular a functional component, in particular a structural and/or functional part, or a part of an accessory for a hand-held power tool, in particular a functional component, in particular an additional functional part.

In order to partially cover the working tool, the protective hood in particular forms at least one protective surface which, in the operating state of the hand-held power tool, covers at least a partial region of the first main surface of the working tool. In particular, the first main surface relates to the largest side of the working tool (in the operating state of the hand-held power tool) which faces the drive unit of the hand-held power tool. In the operating state, the second main surface of the working tool can be arranged in particular without being covered by a protective cover. In particular, the second main surface of the working tool relates to the largest side of the working tool which, in the operating state, is remote from the drive unit of the hand-held power tool and which, in the operating state, faces, in particular, the workpiece to be machined. The protective hood can be designed in particular as a roughing and/or grinding protective hood, in particular for chip removing machining methods, with a large chip quantity on the workpiece side. The attachment cover is especially provided for at least partially covering the second main surface of the work tool. The attachment cover is provided in particular for forming a separating protective cover in connection with the protective cover, in particular a C-shaped separating protective cover according to standard EN 62841-2-3. "at least partially covering" is to be understood to mean, in particular, covering a partial region of an object, which partial region corresponds to at least 20%, advantageously at least 30%, particularly advantageously at least 40%, preferably at least 45% and particularly preferably at least 50% of the total surface of the object.

The term "outer region of the protective hood" is to be understood in particular as the following region of the protective hood: the region comprises an outer edge which delimits the extension of the protective hood and extends in the direction of the second main surface of the working tool.

"provided" is to be understood in particular to mean specially designed and/or specially equipped. In particular, the term "a function that an object is provided with for determining" is to be understood to mean that the object fulfills and/or executes such a determined function in at least one application state and/or operating state.

It is further proposed that the attachment cover has at least one fixing unit for fixing the angular position of the attachment cover relative to the protective cover. This advantageously enables the attachment of the attachment cover to the protective cover to be fixed. The fixing by the fixing unit can be performed in a form-locking and/or force-locking manner. For example, it is conceivable that the fastening by the fastening unit is provided by means of a clamping connection and/or a latching connection and/or a tensioning connection and/or a screw connection and/or the like. Advantageously, the attachment cover and the protective cover have at least substantially the same extent in the circumferential direction of the working tool of the hand-held power tool. In this context, "at least substantially" is to be understood in particular to mean that the deviation from the predefined value deviates in particular by less than 25%, preferably by less than 10% and particularly preferably by less than 5% from the predefined value. In this context, "angular position" is to be understood to mean, in particular, the angle of the following fan of the working tool: the fan-shaped area is at least partially covered by the protective cover in a state in which the attachment cover is connected with the protective cover and is fixed by means of the fixing unit. In an angular position, the attachment cover is fixed relative to the protective cover by means of the fixing unit, and if the angular amount of the angular position is, for example, 0 °, the protective cover and the attachment cover each at least partially cover an identical fan shape of the working tool, wherein the protective cover at least partially covers a first main surface in the region of the fan shape and the attachment cover at least partially covers a second main surface of the working tool opposite the first main surface in the identical region of the fan shape. In an angular position, in which the attachment cover is fixed relative to the protective cover by means of the fixing unit, if the angular position has an angle of, for example, 90 °, the protective cover covers the first main surface of the working tool in the region of the sector having an angle of 90 °, while the second main surface of the working tool is not covered by the attachment cover in the region of this sector.

The fixing unit can be provided for fixing in a precisely determined angular position of the attachment cap relative to the protective hood. It is advantageously provided that the fixing unit effects a fixing in an angular position selectable by the user between the attachment cover and the protective cover. This advantageously improves the flexibility for the user. The fixing unit enables fixing in different steps of angular position that can be selected by the user. Preferably, the fixing unit effects a stepless adjustment of the fixing in the angular position selectable by the user.

Furthermore, it is proposed that the fixing unit has at least one fixing element, which is designed as a clamping lever. This advantageously enables a particularly simple and particularly tool-free fastening of the attachment cap to the protective hood. "clamping lever" is to be understood to mean, in particular, the following actuating element: the operating member provides a tensioning force to secure the first object to the second object. Preferably, the fastening can be established without tools by means of the clamping lever and can also be released without tools. The clamping lever can be designed in particular as a tensioning lever and can in particular have a tensioning hook or the like which, for fixing purposes, engages into a counter contour, for example a tongue plate or groove or a recess or a rim, in particular a rim of a protective hood, and/or partially encloses and tensions the same. The clamping lever can be configured in particular as a tensioner, a quick tensioner or an eccentric lever. The clamping lever can in particular have a lever element which can be connected to a further element of the clamping lever, in particular a bolt or a resilient tensioning element, and which can be tensioned by the lever element for fixing.

Alternatively or additionally, it is proposed that the fixing unit has at least one fixing element, which is designed as a clamping screw. This advantageously enables a reliable fastening by simple technical means. Advantageously, the clamping screw forms at least one pressing surface for the fastening. The clamping screw has at least one external thread. The external thread of the clamping screw can be designed as a full thread or as a partial thread. The clamping screw can be constructed in one piece, wherein, for fixing, an external thread of the clamping screw can be screwed in particular into a corresponding internal thread in the attachment cover. In the case of a clamping screw which is formed in one piece, the pressing surface can be formed in particular as a flat underside of the clamping screw. Alternatively, the clamping screw can be of multi-part, in particular two-part, design. The multi-part clamping screw can have a connecting element, in particular a cylindrical connecting element, for example a screw, in particular a threaded screw, and/or a threaded rod or the like, which can in particular have an external thread and have at least one corresponding connecting element corresponding to the connecting element, for example a clamping nut and/or a tensioning nut (which can in particular have an internal thread corresponding to the external thread of the connecting element) and/or a tensioning pin and/or a cotter pin and/or the like. In the case of a clamping screw of multi-part design, the pressing surface can be arranged in particular on a cylindrical connecting element and can be designed in particular integrally therewith. Alternatively or additionally, it is conceivable for the pressing surface to be designed as a washer and/or a washer rubber or the like.

Furthermore, it is alternatively or additionally proposed that the fastening unit has at least one fastening element, which is designed as a stop element. This advantageously makes a fastening that can be produced and released particularly easily, in particular without tools. For example, the stop element can be designed as a gripping element and is provided to surround a partial region of the protective hood, in particular an outer region of the protective hood, in particular in a form-locking manner, for fixing. Alternatively or additionally, the stop element can be designed as a latching element, for example as a latching cam or the like, and is provided for locking with a corresponding latching element (for example a latching groove or a latching opening or the like) arranged on the shield and/or with the outer edge of the shield for fastening.

Furthermore, it is alternatively or additionally proposed that the fixing unit has at least one fixing element, which is designed as a wedge element. This advantageously makes it possible to achieve a fastening that can be produced and released particularly easily, in particular without tools. In particular, simple loosening of the fastening is also achieved in the event of strong contamination in the region of the fastening unit, which can be caused, for example, by cold sparks or the like. A "wedge element" is to be understood to mean, in particular, an element having at least two sides which converge at a sharp angle and form at least one wedge surface which interacts with at least one further surface, in particular a surface of a protective cap and/or a form-locking element, for fixing and which maintains the fixing by means of at least one force, in particular a friction force.

It is further proposed that the form-locking element is designed as an annular retaining element. A particularly reliable form closure can thereby advantageously be achieved. In this context, the retaining element is "annular" in particular means that the retaining element has the shape of a circular arc segment at least in its maximum extent in the form-locking state with the outer region of the protective hood. The annular retaining element can extend in particular along the entire circumferential extension of the rim-like and unsupported outer region of the protective hood. Alternatively, it is conceivable for the annular partial element to extend in the partial circumferential direction of the rim-like and free-standing outer region of the protective hood. The annular partial element can be configured, for example, as a rigid element, the main extension of which substantially corresponds to the circumferential extension or partial region of the circumferential extension of the rim-like and free-standing outer region of the protective hood. The annular holding element is preferably designed as a resilient element and is made of a resilient material, for example plastic from the group of elastomers. "elastic element" is to be understood to mean in particular the following element: the element can be repeatedly deformed without the element being mechanically damaged or destroyed, and the element returns to its basic shape again, in particular after the deformation.

It is further proposed that the attachment cover has at least one protective element for protecting an outer region of the protective cover against damage. The outer region of the protective hood can thereby advantageously be protected from damage, for example from scratching or the like, by simple technical means. The protective element can have and/or be constructed from, for example, a woven fabric, for example a felt or the like. Alternatively or additionally, it is conceivable for the protective element to be designed as an elastic element, for example as a rubber lip or the like. Furthermore, it is conceivable for the form-locking element, in particular the form-locking element which is designed as an annular retaining element, to simultaneously function as a protective element for protecting the outer region of the protective hood from damage.

It is further proposed that the attachment cover comprises a first attachment cover element and a second attachment cover element which can be connected in a form-fitting manner to the first attachment cover element. This advantageously increases the flexibility for the user. The first attachment housing element can in particular have a form-locking element and can in particular be connected to the protective housing without the second attachment housing element. For example, it is conceivable that the first attachment cover element provides a first protective function of the attachment cover, for example, covering a first sub-region of a working tool of the hand-held power tool, while the second attachment cover element provides a second (in particular complementary to the first protective function) protective function of the attachment cover, for example, covering a second sub-region of the working tool of the hand-held power tool. For example, the first and second attachment housing elements can be connected to one another in a form-locking manner in angular positions offset with respect to one another. Advantageously, a fan-shaped, particularly large area of the second main surface of the working tool can thereby be covered by the cover. The first and second attachment housing elements can interact in order to connect with the protective housing and can in particular form a common form-locking element. For example, it is conceivable for a first attachment cover element to interact with a first side of the outer region of the protective cover, while a second attachment cover element interacts with a second side of the outer region. In particular, it is conceivable that the regions of the first and second attachment cover elements form a fixing unit and that the fixing of the attachment cover relative to the protective cover is effected without further fixing elements. For example, the first attachment housing element can have a first geometry, for example in the form of a catch cam, which fits into a second geometry, for example a catch depression, of the second attachment housing element for fixing.

Furthermore, it is proposed that the fastening unit is arranged between the first and the second attachment housing element.

In addition to the fixing of the attachment cover in the angular position relative to the protective cover, a form-locking connection between the first attachment cover element and the second attachment cover element can thereby be simultaneously advantageously fixed by the fixing unit. Preferably, the fixing element of the fixing unit arranged between the first and second attachment housing elements is configured as a wedge element. The second attachment housing element can have a recess, through which the fastening unit can be actuated.

The handheld power tool device according to the invention is not intended to be limited to the applications and embodiments described above. In particular, the hand-held power tool device according to the invention can have a number of individual elements, components and units which is different from the number mentioned here in order to fulfill the functional principle explained here. Furthermore, in the value regions given in the present disclosure, values lying within the limits mentioned should also be regarded as being disclosed and can be used arbitrarily.

Drawings

Further advantages result from the following description of the figures. Seven embodiments of the invention are shown in the drawings. The figures, description and claims contain many combinations of features. Practically, those skilled in the art also consider these features individually and generalize them into additional meaningful combinations.

It shows that:

fig. 1 shows a schematic exploded view of a hand-held power tool having a hand-held power tool device, which comprises a protective hood and an attachment hood having a form-locking element and a fastening unit,

figure 2 the attachment cover with the form-locking element and the fixing unit in a schematic representation,

figure 3 is a schematic illustration of an attachment cover connected to a protective cover,

fig. 4 is a schematic plan view of an accessory for a hand-held power tool having a hand-held power tool device in a further exemplary embodiment, which comprises a protective hood and an attachment hood with a form-locking element and a fastening unit,

figure 5 a schematic cross-sectional view of the fixing unit of the embodiment of figure 4,

fig. 6 is a schematic top view of an accessory for a hand-held power tool with a hand-held power tool device in a further exemplary embodiment comprising a protective hood and an attachment hood with a fastening unit,

figure 7 a schematic cross-sectional view of the fixing unit of the embodiment of figure 6,

fig. 8 is a schematic top view of an accessory for a hand-held power tool with a hand-held power tool device in a further exemplary embodiment comprising a protective hood and an attachment hood with a fastening unit,

figure 9 is a schematic exploded view of the hand-held power tool apparatus of the embodiment of figure 8,

fig. 10 is a schematic exploded view of an accessory for a hand-held power tool with a hand-held power tool device in a further exemplary embodiment comprising a protective hood and an attachment hood with a fastening unit,

fig. 11 is a schematic side view of an accessory for a hand-held power tool with a hand-held power tool device comprising a protective hood and an attachment hood with a securing unit in a further exemplary embodiment,

figure 12 is a schematic cross-sectional view of the hand-held power tool apparatus of the embodiment of figure 11,

fig. 13 is a schematic top view of an accessory for a hand-held power tool with a hand-held power tool device in a further exemplary embodiment, which comprises a protective hood and an attachment hood with a first attachment hood element and a second attachment hood element and a fastening unit arranged therebetween.

Fig. 14 is a schematic exploded view of the hand-held power tool device of the embodiment of fig. 13, an

Fig. 15 is a schematic side view of the hand-held power tool device of the exemplary embodiment of fig. 13 and 14.

Detailed Description

Fig. 1 shows a hand-held power tool 50 a. The hand-held power tool 50a is designed as an angle grinder. The hand-held power tool 50a has a hand-held power tool device 10 a. The hand-held power tool device 10a has an attachment cover 12 a. The attachment cover 12a is provided for connection to a protective cover 14a of the hand-held power tool device 10 a. The protective hood 14a is provided to partially cover the working tool 16a of the hand-held power tool 50 a. The attachment cover 12a has a form-locking element 18 a. The form-locking element 18a is provided for interacting with a rim-like and free-standing outer region 22a of the protective hood 14a extending in the circumferential direction 20a and at least contributes to the attachment of the protective hood 12a to the protective hood 14 a.

Fig. 2 shows an attachment cover 12a with a form-locking element 18 a. The form-locking element 18a is configured as a projection of the attachment cover 12 a. The attachment cover 12a has a retaining lip 68 a. The retaining lip 68a is provided for interacting with a main guard face 70a of the guard 14 a.

The attachment cover 12a has a fixing unit 24 a. The fixing unit 24a is provided for fixing the angular position 26a of the attachment housing 12a relative to the protective housing 14 a.

The fixing unit 24a of the attachment cover 12a includes a fixing element 28 a. The fixing element 28a is configured as a clamping bar 30 a. The clamping lever 30a has a lever element 72a and a tensioning hook element 74 a.

FIG. 3 shows the attachment housing 12a connected to the protective housing 14 a. The form-locking element 18a interacts with an outer region 22a of the protective hood 14 a. In order to fix the angular position 26a by means of the fixing unit 24a, the tensioning hook element 74a of the fixing element 28a, which is designed as a clamping lever 30a, encompasses the lateral edge 76a of the protective hood 14 a. This connection can be fixed by the user by means of a lever element 72a connected with a tensioning hook element 74 a.

Further embodiments of the invention are shown in fig. 4 to 15. The description and the figures that follow are substantially limited to the differences between the exemplary embodiments, wherein reference can also be made substantially to the description of the figures and/or other exemplary embodiments, in particular fig. 1 to 3, for identically labeled components, in particular for components having the same reference numerals. To distinguish the embodiments, the letter a is placed after the reference numerals of the embodiments in fig. 1 to 3. In the embodiments of fig. 4 to 15, the letter a is replaced by the letters b to g.

Fig. 4 and 5 show an attachment 60b for a hand-held power tool (not shown). The attachment 60b comprises a hand-held power tool device 10 b. The hand-held power tool device 10b differs from the hand-held power tool device 10a from the exemplary embodiment of fig. 1 to 3 with respect to the form-locking element 18b and with respect to the fastening unit 24b of the attachment cover 12 b.

The form-locking element 18b is configured as a projection of the attachment cover 12b running continuously in the circumferential direction 20 b. To connect the attachment cover 12b with the protective cover 14b, the attachment cover 12b can be pushed onto the protective cover 14 b. The form-locking element 18b encompasses a rim-like and free-standing outer region 22b of the protective hood 14b, which extends in the circumferential direction 20b, in a form-locking manner. The attachment housing 12b is rotatable relative to the shield housing 14 b.

The fixing unit 24b is provided for fixing the angular position 26b of the attachment cover 12b and the protection cover 14 b. The angular position 26b may be selected by the user. The fixing unit 24b has a fixing element 28 b. The fastening element 28b is configured as a clamping screw 32 b. The fastening of the attachment cap 12b to the protective cap 14b in the angular position 26b selectable by the user is achieved by means of the clamping screw 32b of the fastening unit 24 b.

Fig. 5 shows a cross section through the fixing unit 24b of the attachment cover 12b and through a portion of the protective cover 14 b. The fixing unit 24b has receiving threads 46 b. For fixing, the clamping screw 32b is screwed into the receiving thread 46 b. The pressing surface 48b of the clamp screw 32b is pressed against the shield 14b for fixation.

Fig. 6 and 7 show a further exemplary embodiment of an attachment 60c for a hand-held power tool (not shown). The accessory 60c has a hand-held power tool device 10 c. The hand-held power tool device 10c differs from the hand-held power tool device 10b of the exemplary embodiment in fig. 4 and 5 essentially in a fastening unit 24c, which is embodied differently with respect to the fastening unit 24 b.

The fixing unit 24c is provided for fixing the angular position 26c of the attachment cover 12c and the protection cover 14 c. The angular position 26c can be selected by the user. The fixing unit 24c has a fixing element 28 c. The fastening element 28c is configured as a clamping screw 32 c. Unlike the clamping screw 32b of the previous exemplary embodiment, the clamping screw 32c is of two-part design. The clamping screw 32c includes a bolt 52c and a clamping nut 54 c. For fixation, the bolt 52c is inserted through the groove 56c in the attachment housing 12 c. The contact surface 48c of the screw 52c points in the direction of the outer region 22c of the protective hood 14 c. The attachment cover 12c has a protective element 40c for protecting the outer region 22c of the protective cover 14c from damage. The protective element 40c is arranged between the outer region 22c and the pressing surface 48c of the bolt 52c and is made of a felt fabric. To fix the angular position 26c, the clamping nut 54c is screwed onto the thread of the bolt 52 from the outer side 58c of the attachment housing 12c, so that the pressing surface 48c presses against the protective element 40 c.

Fig. 8 and 9 show a further exemplary embodiment of an attachment 60d for a hand-held power tool (not shown). The accessory 60d has a hand-held power tool device 10 d. The hand-held power tool device 10d differs from the previous exemplary embodiments in the configuration of the form-locking element 18d attached to the housing 12d and in the fastening unit 24d attached to the housing 12 d.

The form-locking element 18d is designed as a ring-shaped holding element 38 d. The annular retaining element 38d has a rubber lip 62 d. The rubber lip 62d of the annular retaining element surrounds the rim-like and free-standing outer region 22d of the protective hood 14d in a form-fitting manner, said outer region extending in the circumferential direction 20 d. The rubber lip 62d serves at the same time as the protective element 40d for protecting the outer region 22d of the protective hood 14d against damage.

The fixing unit 24d is provided for fixing the angular position 26d of the attachment cover 12d and the protection cover 14 d. The angular position 26d can be selected by the user. The fixing unit 24d has a fixing element 28 d. The fastening element 28d is configured as a clamping screw 32 d. The clamping screw 32d includes a tensioning nut 64d and a bolt 52 d. The screw 52d is connected to the annular retaining element 38d in a material-locking manner. For fixation, the bolt 52d is guided through the groove 56d of the attachment cover 12 d. In the selected angular position 26d, the tensioning nut 64d is screwed onto the thread of the bolt 52d, so that the rubber lip 62d of the annular retaining element 52d is pressed against the outer region of the protective hood 14d for fastening.

Fig. 10 shows a further exemplary embodiment of an attachment 60e for a hand-held power tool (not shown). The accessory 60e has a hand-held power tool device 10 e. The hand-held power tool device 10e differs from the hand-held power tool device 10d of the preceding exemplary embodiment essentially by the configuration of the fastening unit 24e to which the cover 12e is attached.

The fixing unit 24e of the attachment cover 12e has a fixing element 28 e. In contrast to the fastening element 28d of the previous exemplary embodiment, which is designed as a clamping screw 32d, the fastening element 28e is designed as a clamping rod 30 e. The clamping lever 30e comprises a lever element 66e and a resilient tensioning element 68 e. The tensioning element 68e is connected in a material-locking manner to the form-locking element 18e of the retaining element 52e, which is designed in the form of a ring, of the attachment cap 12 e. The elastic tensioning element 68e is guided through a recess 56e in the attachment housing 12e and is connected to the lever element 66e on the outside of the attachment housing by means of a cotter pin (not shown) guided through a hole in the tensioning element 68 e. In order to fix the attachment cap 12e relative to the angular position 26e of the protective cap 14e, which can be selected by the user, the lever element 66e is tilted and the elastic tensioning element 68e is tensioned.

Fig. 11 and 12 show a further exemplary embodiment of an attachment 60f for a hand-held power tool (not shown). The accessory 60f comprises a hand-held power tool device 10 f. The hand-held power tool device 10f differs from the previous exemplary embodiments with regard to the configuration of the form-locking element 18f and with regard to the fastening unit 24f to which the cover 12f is attached.

The form-locking element 18f is configured as a projection of the attachment cap 12 f. The attachment cover 12f has a further form-locking element 78 f. The further form-locking elements 78f are configured as further projections.

The fixing unit 24f of the attachment cover 12f has a fixing element 28 f. The fastening element 28f is designed as a stop element 34 f. In fig. 11 and 12, the attachment cover is connected and fixed with the protection cover 14 f. For the connection, the form-locking element 18f and the further form-locking element are each form-fittingly fitted into the outer region 22f of the protective hood 14 f. For fastening, the fastening element 28f, which is designed as a stop element 34f, surrounds the outer region 22f of the protective hood 14 f.

Fig. 13 to 15 show a further exemplary embodiment of an accessory 60g for a hand-held power tool (not shown). The accessory 60g comprises a hand-held power tool device 10 g. The hand-held power tool device 10g differs from the previous exemplary embodiments with regard to the configuration of the attachment cover 12 g. The attachment cover 12g of the hand-held power tool device 10g comprises a first attachment cover element 42g and a second attachment cover element 44 g. The second attachment housing element 44g of the attachment housing 12g can be connected in a form-locking manner to the first attachment housing element 44 g.

The mounting cover 12g has a fixing unit 24 g. The fixing unit 24g is provided for fixing the angular position 26g of the attachment cover 12g relative to the protection cover 14 g. In a state where the attachment cover 12g is mounted on the shield cover 14g (see fig. 15), the fixing unit 24g is arranged between the first attachment cover element 42g and the second attachment cover element 44 g. The second attachment housing element 44g has a handling window 80 g. The manipulation window 80g is provided for manipulating the fixing unit 24 g.

The fixing unit 24g has a fixing member 28 g. The fastening element 28g is configured as a wedge element 36 g. For fastening, the wedge element 36g presses against the pressing surface 48g of the annular retaining element 38 g. The annular holding element 38g has a rubber lip 62 g. The rubber lip 62g interacts with a rim-like and unsupported outer region 22g of the protective hood 14g, which extends in the circumferential direction 20 g. For fastening, the user grips through the actuating window 80g and moves the wedge element in the circumferential direction 20g toward the pressing surface 48g of the annular retaining element 38g, so that the rubber lip 62g surrounds the outer region of the protective hood 14g in a rotationally fixed manner.

Claims

1. Hand-held power tool device (10a-g) for a hand-held power tool (50a), in particular an angle grinder, having at least one attachment cover (12a-g) for connecting to a protective cover (14a-g) in order to at least partially cover a working tool (16a) of the hand-held power tool (50a), characterized in that the attachment cover (12a-g) has at least one form-locking element (18a-g) which is provided for interacting with a rim-like and free-standing outer region (22a-g) of the protective cover (14a-g) extending in the circumferential direction (20a-g) and at least contributes to the connection.

2. Hand-held power tool device (10a-g) according to claim 1, characterised in that the attachment cover (12a-g) has at least one fixing unit (24a-g) for fixing the angular position (26a-g) of the attachment cover (12a-g) relative to the protective cover (14 a-g).

3. The hand-held power tool device (10 b; 10 c; 10 d; 10 e; 10g) as claimed in claim 2, characterized in that the fastening unit (24 b; 24 c; 24 d; 24 e; 24g) effects a fastening in an angular position (26 b; 26 c; 26 d; 26 e; 26g) selectable by a user between the attachment cover (12 b; 12 c; 12 d; 12 e; 12g) and the protective cover (14 b; 14 c; 14 d; 14 e; 14 g).

4. The hand-held power tool device (10 a; 10e) as claimed in claim 2 or 3, characterized in that the fastening unit (24 a; 24e) has at least one fastening element (28 a; 28e) which is designed as a clamping lever (30 a; 30 e).

5. The hand-held power tool device (10 b; 10 c; 10d) as claimed in any one of claims 2 to 4, characterized in that the fastening unit (24 b; 24 c; 24d) has at least one fastening element (28 b; 28 c; 28d) which is designed as a clamping screw (32 b; 32 c; 32 d).

6. The hand-held power tool device (10f) according to one of claims 2 to 5, characterized in that the fastening unit (24f) has at least one fastening element (28f) which is designed as a stop element (34 f).

7. The hand-held power tool device (10g) according to one of claims 2 to 6, characterized in that the fixing unit (24g) has at least one fixing element (28g) which is configured as a wedge element (36 g).

8. The hand-held power tool device (10 d; 10 e; 10g) as claimed in any one of the preceding claims, characterized in that the form-locking element (18 d; 18 e; 18g) is configured as an annular retaining element (38 d; 38 e; 38 g).

9. The hand-held power tool device (10 c; 10 d; 10 e; 10g) as claimed in one of the preceding claims, characterized in that the attachment cover (12 c; 12 d; 12 e; 12g) has at least one protective element (40 c; 40 d; 40 e; 40g) for protecting the outer region (22 c; 22 d; 22 e; 22g) of the protective cover (14 c; 14 d; 14 e; 14g) against damage.

10. The hand-held power tool device (10g) according to one of the preceding claims, characterized in that the attachment cover (12g) comprises a first attachment cover element (42g) and a second attachment cover element (44g) which can be connected in a form-fitting manner with the first attachment cover element (42 g).

11. The hand-held power tool device (10g) according to any one of the preceding claims, however at least according to claims 2 and 10, characterized in that the fixing unit (24g) is arranged between the first and second attachment housing elements (42g, 44 g).

12. A hand-held power tool (50a) having a hand-held power tool device (10a-10g) according to one of the preceding claims.

13. An accessory (60a-60g) for a hand-held power tool, having a hand-held power tool device (10a-10g) according to any one of claims 1 to 11.