CN115609541A

CN115609541A - Tool attachment and system for a hand-held power tool

Info

Publication number: CN115609541A
Application number: CN202210835207.5A
Authority: CN
Inventors: J·布林尼恩斯图; M·克劳斯
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2021-07-16
Filing date: 2022-07-15
Publication date: 2023-01-17
Also published as: DE102021207608A1; EP4119300A1

Abstract

The invention relates to a tool attachment (300) for a hand-held power tool (100), comprising a locking unit (302) for locking the tool attachment (300) on a fastening interface (150) of the hand-held power tool (100), comprising an attachment housing (310) on which a tool receptacle (140) for receiving an application tool (170) is arranged, and comprising a suspension device (360) for suspended storage and/or suspended transport. It is proposed that the attachment housing (310) has a connection interface (330) which is designed to connect the suspension device (360), in particular releasably, axially and radially, to the attachment housing (310). The invention also relates to a corresponding system.

Description

Tool attachment and system for a hand-held power tool

Technical Field

The invention relates to a tool attachment for a hand-held power tool and to a system comprising a hand-held power tool and a tool attachment.

Background

A tool attachment for a hand-held power tool is known from DE102015206622A1, which has a locking unit for locking the tool attachment to a fastening interface of the hand-held power tool and has an attachment housing on which a tool receptacle for receiving an application tool is arranged, wherein the tool attachment is equipped with a suspension device for suspended storage and/or suspended transport.

Disclosure of Invention

The starting point of the invention is a tool attachment for a hand-held power tool, comprising: a locking unit for locking the tool attachment to a fastening interface of the hand-held power tool; an accessory housing arranged with a tool receiving portion for receiving an application tool; and a suspension device for suspended storage and/or suspended transport. It is proposed that the accessory housing has a connection interface which is designed to connect, in particular releasably connect, the suspension device axially and radially to the accessory housing.

The invention provides a tool attachment with which user convenience is increased in that the attachment housing has a connection interface which connects the suspension device axially and radially with the attachment housing. The suspension device is thereby securely and reliably connected to the attachment housing, so that an undesired detachment of the suspension device from the attachment housing is avoided.

The tool attachment is provided for use with a hand-held power tool. The hand-held power tool further comprises a drive unit, a main drive shaft having a tool receptacle for at least partially receiving a drive element of the tool attachment, and a fastening interface. The tool receiver of the hand-held power tool and the drive element of the tool attachment are configured to be complementary. The fastening interface is provided for releasably receiving a locking unit of the tool attachment, in particular for establishing a releasable connection with the tool attachment by means of the locking unit. The fastening interface is designed for the drive-related mechanical connection of the tool attachment to the hand-held power tool; the fastening interface establishes a mechanical connection between the hand-held power tool and the tool attachment via the locking unit. The fastening interface of the hand-held power tool may comprise a plurality of form-locking elements, which are arranged, for example, substantially uniformly on the outer circumference of the fastening interface. The form-locking element is designed to realize a torque support of the tool attachment. The fixing interface and the locking unit are configured complementarily.

Possible embodiments of the fixed interface and the locking unit are known from the prior art, in particular from DE10 2016 109 A1, DE10 2011 084 A1, DE10 2007 006 A1, DE10 2016 202 831 A1 and DE10 2013 213 A1, and are therefore not discussed any further here.

The tool accessory includes an accessory housing. The attachment housing can be formed, for example, substantially cylindrical, frustoconical, cubical, cuboid or pyramid-shaped. A tool receiving portion for receiving an application tool is disposed on the accessory housing. The tool holder can be designed, for example, as an inner tool holder and/or as an outer tool holder. The in-tool receptacle can be shaped, for example, as a hexagonal receptacle in the form of a screwdriver bit receptacle or as an SDS receptacle. The outer tool receptacle can be formed, for example, as a quadrangular outer receptacle. The application tool may be, for example, a screwdriver bit, an SDS application tool, or a nut sleeve bit. Furthermore, the accessory housing comprises a connection interface. The attachment housing can be connected to the connection interface in a form-fitting, force-fitting and/or material-fitting manner. It is also conceivable for the accessory housing to form the connection interface, so that the accessory housing and the connection interface are constructed in one piece.

The accessory housing may have a securing section for receiving an additional handle. The fastening section for the additional handle is designed to enable the additional handle to be fastened to the attachment housing. Furthermore, an impact mechanism can be arranged in the attachment housing, which impact mechanism is designed to apply an impact to the application tool during an impact operation of the tool attachment.

The tool attachment has at least one tool attachment axis. The tool attachment axis can be configured, for example, as a rotational axis of the tool receiver. "axial" is to be understood in particular to mean substantially parallel to the tool attachment axis. And "radial" is to be understood as being substantially perpendicular to the tool attachment axis. Furthermore, "tangential" is understood to be substantially transverse to the tool attachment axis.

The suspension device is provided for suspended storage and/or suspended transport. The suspension device can have at least one suspension element, which is configured, for example, in the form of a hook, a spring clip, a belt clip, an eyelet, a clip and/or a belt clip.

The suspension device can be connected axially and radially to the attachment housing by means of the connection interface, in particular releasably, in particular completely tool-free. The suspension device and the connection interface can be connected to one another in a form-fitting and/or force-fitting manner. The connection interface may be arranged on the accessory housing in a circumferential direction with respect to the tool accessory axis. The connection interface may extend in an axial direction with respect to the tool attachment axis. The connection interface 330 can be designed, for example, as a platform (podestartig). The accessory housing may form a connection interface such that the accessory housing and the connection interface are integral. It is conceivable for the attachment housing and the connection interface to be designed in two parts and to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. In order to be able to connect the suspension device to the connection interface, the suspension device can be pushed onto the connection interface, for example, axially along the tool attachment axis.

In one embodiment of the tool attachment, the connection interface has at least one blocking element, and the suspension device comprises at least one spring element, wherein the blocking element and the spring element cooperate such that the blocking element axially blocks the spring element in the direction of their connection direction. The connection direction is here such a direction: the suspension device is pushed over the connection interface in this direction. Thus, the connection direction may be, for example, axial, radial and/or transverse with respect to the tool attachment axis. The connection direction is here, for example, parallel to the tool attachment axis. The blocking element blocks the spring element in the axial direction with respect to their connection direction. The blocking element can block the spring element in the direction of the tool receptacle of the tool attachment or in the direction of the drive element, in particular the locking unit, of the tool attachment. It is also conceivable that the blocking element blocks the spring element at a tangential direction with respect to the tool attachment axis.

The blocking element is configured to block the suspension device in the axial direction with respect to their connection direction and to prevent movement. The blocking element can be configured, for example, as a blocking strip, a blocking edge or a blocking projection. The spring element and the blocking element may be arranged opposite each other on the tool attachment housing. The spring element can bear axially against the blocking element. For example, the end face of the spring element can bear against the blocking element. The spring element may be configured substantially parallel to the connecting direction. The spring element can be configured, for example, as an elastically deformable tongue or as a leaf spring.

The suspension device may have two edge elements. The spring element may be arranged between the two edge elements. The edge elements may each be strip-shaped, for example. The spring element can be surrounded by two edge elements in a U-shape.

The spring element may be elastically bendable radially outwards when the suspension device is pushed onto the connection interface. Once the spring element is pushed beyond the blocking element, the spring element may snap radially inward and axially behind the blocking element. In order to remove the suspension device from the connection interface again, the spring element may be bent radially outwards, so that the spring element may be pushed past the blocking element. The blocking element and the spring element may limit an axial clearance of the suspension device with respect to the accessory housing.

In an alternative embodiment of the tool attachment, the connection interface has at least one spring element, and the suspension device comprises at least one blocking element, wherein the blocking element and the spring element cooperate such that the blocking element axially blocks the spring element in the direction of their connection direction. Here, the blocking element and the spring element may be constructed as described above.

In one embodiment of the tool attachment, the connection interface has an inner stop, and the suspension device comprises a stop element, wherein the inner stop is designed in such a way that it blocks the stop element axially counter to the connection direction. The connection interface may form an inner stop such that the connection interface and the inner stop are integral. It is conceivable for the connection interface and the inner stop to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The inner stop can be configured, for example, as an inner stop edge, an inner stop strip or an inner stop projection. Two internal stops may be provided here, for example. The stop element can be configured, for example, as a rim, a strip or a projection. Two stop elements can be provided here, for example. The suspension device may form a stop element such that the suspension device and the stop element are integral. The stop element can be supported on the inner stop or can bear against the inner stop. The inner stop blocks the stop element in the direction of the tool receptacle or in the direction of the drive element, in particular of the locking unit. The inner stop limits the axial movement in the direction towards the locking unit and/or transversely to the locking unit.

In one embodiment of the tool attachment, the connection interface has an outer stop, and the suspension device comprises an abutment element, wherein the outer stop is designed to block the abutment element axially against the connection direction. The connection interface may form an outer stop such that the connection interface and the outer stop are integral. It is conceivable for the connection interface and the outer stop to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The outer stop can be configured, for example, as an inclined surface. The suspension device can be designed as an abutment element. The contact elements can be designed, for example, as ramps. The spring element and the abutment element can be integral here. The outer stop can block the abutment element in the direction of the tool receptacle or in the direction of the locking unit.

In one embodiment of the tool attachment, the connection interface has at least one further outer stop, and the suspension device comprises a further abutment element, wherein the further outer stop is provided for axially limiting the further abutment element against the connection direction. The connection interface may form said further outer stop such that the connection interface and said further outer stop are integral. The further outer stop can be configured as an at least partially circumferential rim, an at least partially circumferential strip or an at least partially circumferential projection. The suspension device may form said further abutment element such that the suspension device and said further abutment element are integral. It is conceivable for the suspension device and the further contact element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The further contact element can be embodied, for example, in an arc-shaped or C-shaped manner. In this case, the further abutment element can engage the spring element. The further abutment element can bear against the further outer stop or abut against the further outer stop. It is conceivable for the further outer stop to limit the further abutment element in the axial direction in the direction of the locking unit or the tool receiver.

In one embodiment of the tool attachment, the connection interface has at least one receiving element and the suspension device comprises at least one connecting element, wherein the connecting element at least partially surrounds the receiving element. The connection interface may form the receiving element such that the connection interface and the receiving element are integral. It is conceivable for the connection interface and the receiving element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The receiving elements are configured, for example, in the form of projections, rims or strips. It is conceivable to provide a further receiving element, wherein the connection interface can form the further receiving element. The further receiving element can be configured, for example, in the form of a carrier.

The suspension arrangement may form the connecting element such that the suspension arrangement and the connecting element are integral. It is conceivable for the suspension device and the connecting element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The connecting element can be designed, for example, in the form of a bracket (B ü gel), a clamp or a slide. Furthermore, the holder can be configured, for example, in a C-shape. Two supports forming a slide are also conceivable. The connecting element can at least partially surround the receiving element and can at least partially rest against the receiving element.

The connecting element is designed to guide radial forces into the attachment housing in the direction of the tool attachment axis by means of the receiving element. The connecting element may enable locking of the suspension device tangentially with respect to the direction of connection and/or the axis of the tool attachment.

In an alternative embodiment, the connection interface has at least one connection element, and the suspension device comprises at least one receiving element, wherein the connection element at least partially surrounds the receiving element. In this alternative embodiment, the connecting element and the receiving element are implemented similarly to the above.

In one embodiment of the tool attachment, the connection interface has at least one bearing element, and the suspension device comprises at least one cover element, wherein the cover element rests against the bearing element and is designed to introduce radial and/or tangential forces into the connection interface via the bearing element. The connection interface may form the support element such that the connection interface and the support element are integral. It is conceivable for the connection interface and the support element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The support element can be constructed, for example, in the form of a table. The support element may be arranged between said receiving elements.

The suspension arrangement may form a covering element such that the suspension arrangement and the covering element are integral. It is conceivable for the suspension device and the cover element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The cover element rests against the support element, wherein radial and/or tangential forces can thereby be introduced into the connection interface. The C-shaped bracket may radially grip the cover element. The covering element may press on the supporting element when the suspension arrangement is pulled. When the suspension device, in particular the suspension element, is pressed, radial forces can be introduced into the attachment housing via the cover element and the bearing element. Here, the support element and the blocking element are, for example, integral.

In an alternative embodiment, the connection interface has at least one cover element, and the suspension device comprises at least one bearing element, wherein the cover element rests against the bearing element and is designed to introduce radial and/or tangential forces into the connection interface via the bearing element. Here, the covering element and the supporting element may be configured as described above.

In one embodiment of the tool attachment, the connection interface has a further bearing element and the suspension device comprises a further cover element, wherein the further cover element is designed to be supported on the further bearing element. The connection interface may form the further support element such that the connection interface and the further receiving element are integral. It is conceivable for the connection interface and the further supporting element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The further supporting element may be constructed, for example, in the form of a dome.

The suspension arrangement may form a further covering element such that the suspension arrangement and the further covering element are integral. It is conceivable for the suspension device and the further covering element to be connected to one another in a form-fitting, force-fitting and/or material-fitting manner. The further covering element may be configured, for example, in the form of a strip. The further cover element may be integral with the spring element. The further covering element is supported on the further bearing element. It is conceivable for the further covering element to bear against the further supporting element. The further cover element and the further bearing element are designed to introduce radial forces into the attachment housing. It is conceivable for the further cover element and the further bearing element to be designed to introduce tangential forces into the attachment housing.

In one embodiment of the tool attachment, the suspension device has at least one inspection opening, wherein the inspection opening is provided for inspecting a connection of the suspension device to the connection interface. The suspension forms an inspection opening. The inspection opening can be configured, for example, as a substantially cuboid-shaped opening in the suspension element. The inspection opening enables a user to inspect a safe and reliable connection of the suspension arrangement and the connection interface. Here, the user can check whether the spring element snaps behind the blocking element.

In an alternative embodiment, the connection interface has at least one inspection opening, wherein the inspection opening is provided for inspecting the connection of the suspension device to the connection interface. The inspection opening of the connection interface can be configured analogously as described above.

The starting point of the invention is also a system comprising a hand-held power tool as described above with a fastening interface as described above and a tool attachment as described above. The hand-held power tool may be designed as an electrically or pneumatically operated hand-held power tool. In this case, the electrically operated hand-held power tool may be embodied as a mains-operated hand-held power tool or as a battery-operated hand-held power tool. For example, the hand-held power tool can be designed as a screwdriver, a compressed air screwdriver, a drill screwdriver, a rotary impact screwdriver, a hammer, a drill hammer, a compressed air rotary impact screwdriver or an impact drill screwdriver.

The drive unit includes a drive motor and a transmission. The drive unit is configured to drive the main drive shaft. The drive motor can be designed in particular as an electric motor. The transmission can be designed as a planetary transmission, wherein it can be shiftable, for example. The invention is also applicable to other motor types or transmission types. In addition, the hand-held power tool comprises an energy supply device, wherein the energy supply device is provided for operating with an accumulator, in particular an accumulator of an accumulator pack of the hand-held power tool, and/or for operating the electrical power system. In a preferred embodiment, the energy supply device is designed for battery operation. Within the scope of the present invention, a "hand-held power tool battery pack" is understood to mean a combination of at least one battery cell and a battery pack housing. The hand-held power tool battery pack is advantageously designed to supply energy to a commercially available battery-operated hand-held power tool. The at least one battery cell may be designed, for example, as a lithium-ion battery cell having a nominal voltage of 3.6V. For example, the hand-held power tool battery pack may comprise up to ten battery cells, wherein other numbers of battery cells are also conceivable. The embodiment of a hand-held power tool operated as a battery and the operation of a hand-held power tool operated as a power grid are sufficiently known to the person skilled in the art, and therefore the details of the energy supply device are not discussed here.

The drive unit is designed in such a way that it can be actuated by means of a manual switch. If the user actuates the manual switch, the drive unit is switched on and the hand-held power tool is put into operation. The drive unit is switched off if accordingly the user does not further actuate the manual switch. Preferably, the drive unit can be electronically controlled and/or regulated in such a way that a reverse operation and a predetermined desired rotational speed can be achieved. It is also conceivable for the manual switch to be a lockable manual switch which can be locked in at least one operating state into at least one position. In the reverse operation, the drive unit can be switched between a needle rotation direction and a counterclockwise rotation direction. In order to switch the drive unit into reverse operation, the hand-held power tool may have a rotational direction switching element, in particular a rotational direction switch.

The hand-held power tool may have an impact mechanism. The impact mechanism can generate high torque peaks during operation in order to thus release or secure the fixed connection means. The impact mechanism may be connected to the drive motor by means of a transmission. The impact mechanism may be configured, for example, as a rotary impact mechanism, a snap-lock impact mechanism, a rotary impact mechanism or a hammer impact mechanism. Additionally, the impact mechanism may be coupled to the main drive shaft.

Drawings

The invention is illustrated below by means of preferred embodiments. The drawings that follow show:

fig. 1 is a schematic illustration of a hand-held power tool with a tool receiving portion and a fastening interface;

FIG. 2 is a perspective view of the system with the hand-held power tool of FIG. 1, a tool attachment according to the invention and an additional handle;

FIG. 3 is a side view of the tool attachment;

FIG. 4a is a partial longitudinal cross-section of the tool attachment;

FIG. 4b is a side view of a portion of the tool attachment;

FIG. 4c is a partial front view of the tool attachment;

FIG. 5a is a perspective view of a suspension arrangement of the tool attachment;

fig. 5b is a side view of the connection interface of the tool attachment.

Detailed Description

Fig. 1 shows an exemplary hand-held power tool 100 having a tool housing 105 with a handle 115 and an enlarged detail 160 of the hand-held power tool 100. According to one specific embodiment, the hand-held power tool 100 can be mechanically and electrically connected to a hand-held power tool battery pack 190 and is designed as an exemplary battery drill screwdriver, in order to be independent of the mains supply, but instead of this, it can also be operated, for example, in a mains-dependent manner. The invention is not limited to battery-operated drill drivers, but can also be used in different hand-held power tools that rotate a tool, for example, in a driver or a battery-operated driver.

The hand-held power tool 100 comprises a drive unit 111 having an electric drive motor 180 and a transmission 109. In the tool housing 105, at least an electric drive motor 180, which is supplied with power from a battery pack 190, and a transmission 109, which is optionally assigned a torque clutch 199, are preferably arranged. The drive motor 180 can be switched on and off, for example, by a manual switch 195, and can be any motor type, for example, an electronically commutated motor or a direct current motor. The drive motor 180 is connected to the main drive shaft 120 (e.g., a drive spindle) via a gear 109 and, in operation of the hand-held power tool 100, drives the main drive shaft 120 in rotation via the gear 109. The transmission 109 and the drive motor 180 are arranged in a transmission housing 110 and a motor housing 185, respectively, which are arranged in the tool housing 105 separately from one another as shown. For the reverse operation, the hand-held power tool 100 has a rotational direction switching element 116, which is designed as a rotational direction switch. The rotational direction switching member 116 is configured to switch the drive motor 180 between a clockwise rotational direction and a counterclockwise rotational direction.

According to one embodiment, the hand-held power tool 100 is assigned a tool receiver 140 for receiving an application tool 170, which has a bit holder 145 in the exemplary case and is arranged in the region of the front face 112 of the tool housing 105 or the transmission housing 110. As shown, the bit holder 145 has a locking or steering sleeve 149 and a polygonal inner receptacle 148, preferably a hexagonal inner receptacle 147, to receive a so-called HEX bit or driver bit. Furthermore, the bit holder 145 may also or alternatively be configured to receive an SDS-plus application tool and/or an SDS-Quick application tool. A fastening interface 150 is provided in the region of the batch head holder 145 or the tool receiver 140.

The fastening interface 150 serves to fasten a corresponding, preferably exchangeable tool attachment 300, preferably in a rotationally fixed manner, see also fig. 2 to 5. As shown, the fastening interface 150 has a fastening element 151, which is fastened on the end face 112 of the tool housing 105 in a rotationally fixed manner to the tool housing and/or the gear housing 110 and which preferably encompasses the bit holder 145 at least in sections with a predetermined radial distance, so that an axial displacement of the locking sleeve 149 within the fastening element 151 can be achieved. For this purpose, the fastening element 151 is preferably at least in sections sleeve-shaped or annular and is fastened in the region of a torque adjustment sleeve 130, which is arranged on the end face 112 in an annular manner on the tool housing 105 and is assigned to the optional torque clutch 199, by means of suitable fastening means, for example screws or rivets, but may alternatively be formed integrally with the tool housing 105 and/or the transmission housing 110. According to one embodiment, the fixing element 151 has at least one locking element 155 and at least two retaining

members

152, 154 on its outer circumference. The locking element 155 preferably has at least one locking tooth 156, and the at least two retaining

members

152, 154 are configured, by way of example, in the form of a bayonet for forming a bayonet connection. However, other fastening possibilities, such as a ferrule lock (drahtbliverriegelung) or the like, can also be used in the fastening interface 150, with which the corresponding tool attachment 300 can be fastened to the fastening interface 150 by a rotational movement.

As shown, an at least partially conical centering aid 153 for axially centering a locking unit 302 of an associated tool attachment 300 is provided on the fastening interface 150, see also fig. 3. The fastening element 151 is designed to axially center the associated tool attachment 300 on the tool housing 105 and/or the transmission housing 110. For this purpose, a preferably annular, at least partially funnel-shaped centering surface 159 is provided on the inner circumference of the fastening element 151, which centering surface serves to form the centering aid 153. However, this centering surface is only exemplary of funnel-shaped design and can alternatively also be realized, for example, by a conical design on an additional centering ring. Accordingly, what relates to the term "conical" in the context of the present invention is meant to refer not only to the tapered configuration of the respective member but also to the funnel-shaped configuration of the respective member. Furthermore, instead of the respective annular and funnel-shaped centering surfaces 159, the centering aid 153 may have a plurality of arc-shaped sections or the like which are conical. Furthermore, the fastening element 151 has at least one and, as shown, three optional angle adjustment members 157, which are each formed as shown by two pin-like projections and serve, for example, to preset a predetermined angular position when fastening a tool attachment configured in the form of an angle attachment (winkelvisatz) or eccentric attachment (Exzentervorsatz) to the machine interface 150.

The fastening interface 150 is configured for releasably receiving a locking unit 302 of the tool attachment and establishing a releasable connection with the tool attachment 300. The fastening interface 150 is formed to mechanically connect the tool attachment 300 to the hand-held power tool 100 in terms of drive technology.

Fig. 2 shows a perspective view of a system 200 with a hand-held power tool and a tool attachment 300 according to the invention. Here, an additional handle 250 is connected to the tool attachment, for example. The tool attachment 300 is locked with the hand-held power tool 100 via the fastening interface 150 using the locking unit 302. The attachment handle 250 is releasably connected to the fastening section 304 of the tool attachment 300 by means of a fastening element 252, see also fig. 3. The fastening element 252 is preferably at least partially designed in the form of a loop. Here, according to one embodiment, the fixing element 252 is configured in the form of a clamping holder with a clamping band.

Fig. 3 shows a side view of the tool attachment 300. The tool attachment 300 is designed for connection, in particular locking, with the hand-held power tool 100. The tool receiver 140 of the hand-held power tool 100 and the drive element 306 of the tool attachment 300 are configured to be complementary. The tool attachment 300 has an attachment housing 310, wherein the attachment housing 310 is here of substantially cylindrical design. A tool receiver 314 for receiving an application tool, not shown, is arranged on the free end 312 of the attachment housing 310. The tool receptacle 314 is formed as an in-tool receptacle 316, wherein the in-tool receptacle 316 is configured as an SDS-in receptacle. The tool attachment 300 includes a tool attachment axis 308. The tool attachment axis 308 is shaped as the axis of rotation of the tool receiving portion 314. In the attachment housing 310, an impact mechanism 318 is arranged here, which is provided for applying an impact to the application tool during the impact operation of the tool attachment 300. The accessory housing 310 has a connection interface 330, see also fig. 4 and 5. Here, the accessory housing 310 is molded with the connection interface 330 such that the accessory housing 310 and the connection interface 330 are integrated.

The tool attachment 300 includes a hanging device 360 for hanging storage and/or hanging transport. The suspension device 360 can be connected, in particular releasably, axially and radially, to the accessory housing 310 via the connection interface 330. The suspension arrangement 360 comprises a suspension element 362, wherein the suspension element 362 is shaped in the form of a belt clip. The suspension device 360 and the connection interface 330 are connected to one another at least in a form-fitting manner. Here, the connection interface 330 is arranged on the accessory housing 310 in a circumferential direction with respect to the tool accessory axis 308. Furthermore, the connection interface 330 extends in an axial direction with respect to the tool attachment axis 308, see also fig. 4 and 5. The connection interface 330 is illustratively shaped like a table, see also fig. 4 and 5. To enable the suspension device 360 to be connected with the connection interface 330, the suspension device 360 is pushed onto the connection interface 330, for example, axially along the tool attachment axis 308.

Fig. 4a shows a longitudinal section through a detail 400 of the tool attachment 300. The connection interface 330 includes a blocking element 332. Here, the connection interface 330 forms a blocking element 332. The blocking element 332 is illustratively formed as a blocking strip 334. The suspension 360 has a spring element 364. The spring element 364 is shaped as an elastically deformable tongue 366. The blocking element 332 and the spring element 364 act together in such a way that the blocking element 332 blocks the spring element 364 axially in the direction of their connecting direction 320. The connection direction 320 is such a direction: in which direction the suspension 360 is pushed onto the connection interface 330. Here, the connection direction 320 is axial with respect to the tool attachment axis 308, in particular parallel thereto. The blocking element 332 blocks the spring element 364 in the axial direction in the direction of the tool receiving portion 314 of the tool attachment 300. The spring element 364 bears axially against the blocking element 332. In this case, the end 368 of the spring element 364 bears against the blocking element 332.

The suspension arrangement 360 comprises two edge elements 370, see also fig. 4c and 5a. The spring element 364 is arranged between two edge elements 370. In this case, the edge elements 370 are each formed in the form of a strip, so that the spring element 364 is enclosed by the two edge elements 370 in a U-shaped manner.

The connection interface 330 includes an outer stop 336. Here, the connection interface 330 forms an outer stopper 336 such that the connection interface 330 and the outer stopper 336 are integral. The outer stop 336 is formed as a ramped surface 338. The suspension device 360 has an abutment element 372, wherein the suspension device 360 forms the abutment element 372. The suspension device 360 and the abutment element 372 are here integral. Further, the spring element 364 and the abutment element 372 are here integral. The abutment element 372 is formed like a ramp. The outer stop 336 is provided for blocking the abutment element 372 axially against the connection direction 320. Furthermore, the outer stop 336 blocks the abutment element 372 in the direction of the locking unit 302.

The connection interface 330 comprises a further outer stop 340, wherein the connection interface 330 forms the further outer stop 340. The connection interface 330 and the further outer stop 340 are integral. The further outer stop 340 is shaped as an at least partially circumferential rim 342. The suspension device 360 has a further abutment element 374, wherein the suspension device 360 forms the further abutment element 374. The suspension 360 and the further abutment member 374 are integral. The further abutment element 374 is formed in an arc shape, wherein the further abutment element 374 engages the spring element 364. The further outer stop 340 is designed to axially limit the further abutment element 374 against the connecting direction 320. In at least one state, the further abutment element 374 abuts against the further outer stop 340, so that the further outer stop 340 limits the further abutment element 374 in the axial direction in the direction of the locking unit 302.

The connection interface 330 comprises a support element 342, wherein the connection interface 330 forms the support element 342. The connection interface 330 and the support element 342 are integral. Here, the support element 342 is formed in the form of a table, see also fig. 4c and 5b. The support element 342 and the blocking element 332 are here integral. The suspension device 360 has a cover element 376, wherein the suspension device 360 forms the cover element 376. The suspension 360 and the cover element 376 are integral. The cover element 376 bears against the support element 342 and is designed to introduce radial and/or tangential forces into the connection interface 330 via the support element 342.

The connection interface 330 comprises a further bearing element 344, wherein the connection interface 300 forms the further bearing element 344. The connection interface 330 and the further support element 344 are integral. The further bearing element 344 is shaped in the form of a dome, see also fig. 5b. The suspension device 360 has a further cover element 378, wherein the suspension device 360 forms the further cover element 378. The suspension means 360 and said further covering element 378 are integral. Here, the further covering elements 378 are shaped in the form of strips. Furthermore, the further cover element 378 is integral with the spring element 364. The further cover element 378 is designed to be supported on the further support element 344. The further cover element 378 and the further bearing element 344 are designed to introduce radial forces into the accessory housing 310, in particular via the connection interface 330.

The hanging device 360 includes an inspection opening 380, wherein the hanging device 360 forms the inspection opening 380. The inspection opening 380 is shaped as a substantially cuboid opening in the suspension element 362. The inspection opening 380 is configured for inspecting the connection of the suspension device 360 to the connection interface 330.

In fig. 4b, a partial side view of the tool attachment is shown, the connection interface 330 comprising an inner stop 346, wherein the connection interface 330 forms the inner stop 346. The connection interface 330 and the inner stop 346 are integral. The inner stop 346 is formed here as an inner stop edge 348, wherein two inner stops 346 are provided here. The suspension 360 has a stop element 382, wherein the suspension 360 forms the stop element 382. The suspension 360 and the stop element 382 are integral. The stop elements 382 are shaped as edges 384, wherein two stop elements 382 are provided here. Inner stop 346 is designed in such a way that inner stop 346 blocks blocking element 382 axially counter to connection direction 320. For this purpose, the stop element 382 can rest against the inner stop 346 in at least one state. Inner stop 346 blocks stop element 382 in a direction toward drive element 306, in particular lock unit 302.

In fig. 4c a front view of a part 400 of the tool attachment 300 is shown. The connection interface 330 comprises a receiving element 350, wherein the connection interface 330 forms the receiving element 350. The connection interface 330 and the receiving element 350 are integral. Here, the receiving elements are shaped in the form of projections 352, two receiving elements 350 being formed. The suspension device 360 has a connecting element 386, wherein the suspension device 360 forms the connecting element 386. The suspension 360 and the connecting element 386 are integral. The connecting elements 386 are formed in the form of C-shaped brackets 388, two connecting elements 386 being formed. Connecting element 386 at least partially surrounds receiving element 350. Furthermore, the connecting element 386 bears at least in sections against the receiving element 350. The connecting element 386 introduces radial and/or tangential forces into the attachment housing 310 in the direction of the tool attachment axis 308 by means of the receiving element 350. The support element 342 is arranged between two receiving elements 350. The two C-shaped brackets 388 clamp the cover element 376 radially in a direction towards the tool attachment axis 308.

Fig. 5a shows a perspective view of a suspension device 360 of the tool attachment 300. In fig. 5b a side view of the connection interface 330 of the tool attachment 300 is shown.

Claims

1. A tool attachment (300) for a hand-held power tool (100), having:

a locking unit (302) for locking the tool attachment (300) on a fastening interface (150) of the hand-held power tool (100);

an accessory housing (310) on which a tool receiving portion (140) for receiving an application tool (170) is arranged; and

a suspension device (360) for suspended storage and/or suspended transport,

it is characterized in that the preparation method is characterized in that,

the accessory housing (310) has a connection interface (330) which is designed to connect, in particular to be releasably connectable, the suspension device (360) to the accessory housing (310) in the axial and radial directions.

2. The tool attachment (300) according to claim 1, characterized in that the connection interface (330) has at least one blocking element (332) and the suspension arrangement (360) comprises at least one spring element (364), wherein the blocking element (332) and the spring element (364) act together such that the blocking element (332) blocks the spring element (364) axially in a direction towards their connection direction (320).

3. The tool attachment (300) according to claim 1 or 2, wherein the connection interface (330) has an inner stop (346) and the suspension device (360) comprises a stop element (382), wherein the inner stop (346) is configured such that the inner stop (346) blocks the stop element (382) axially against the connection direction (320).

4. The tool attachment (300) according to any one of claims 1 to 3, wherein the connection interface (330) has an outer stop (336) and the suspension device (360) comprises an abutment element (372), wherein the outer stop (336) is configured for blocking the abutment element (372) axially against the connection direction (320).

5. The tool attachment (300) according to any one of the preceding claims, wherein the connection interface (330) has at least one further outer stop (340) and the suspension arrangement (360) comprises a further abutment element (374), wherein the further outer stop (340) is provided for axially limiting the further abutment element (374) against the connection direction (320).

6. The tool attachment (300) according to any one of the preceding claims, wherein the connection interface (330) has at least one receiving element (350) and the suspension arrangement (360) comprises at least one connecting element (386), wherein the connecting element (386) at least partially surrounds the receiving element (350).

7. The tool attachment (300) according to any one of the preceding claims, wherein the connection interface (330) has at least one bearing element (342) and the suspension device (360) comprises at least one cover element (376), wherein the cover element (376) bears against the bearing element (342) and is configured for introducing radial and/or tangential forces into the connection interface (330) via the bearing element (342).

8. The tool attachment (300) according to any one of the preceding claims, wherein the connection interface (330) has a further bearing element (344) and the suspension device (360) comprises a further covering element (378), wherein the further covering element (378) is configured for supporting on the further bearing element (344).

9. The tool attachment (300) according to any one of the preceding claims, wherein the suspension device (360) has at least one inspection opening (380), wherein the inspection opening (380) is provided for inspecting a connection of the suspension device (360) with the connection interface (330).

10. A system (200) comprising a hand-held power tool (100) and a tool attachment (300), the hand-held power tool (100) having a fixation interface (150), the tool attachment (300) being a tool attachment (300) according to any one of claims 1 to 9.