EP4161738A1

EP4161738A1 - Device for receiving a hand-held power tool

Info

Publication number: EP4161738A1
Application number: EP21727189.9A
Authority: EP
Inventors: Simon Käsmann; Michael Lanzinger
Original assignee: Hilti AG
Current assignee: Hilti AG
Priority date: 2020-06-09
Filing date: 2021-05-28
Publication date: 2023-04-12
Anticipated expiration: 2041-05-28
Also published as: EP4161738B1; EP3922416A1; US20230330830A1; JP2023527513A; CN115666868A; WO2021249791A1

Abstract

The present invention relates to a device for receiving a hand-held power tool. The device can be used as an interface between the hand-held power tool and a supporting or carrying structure and comprises a first and a second fastening means as well as a counter structure. The proposed interface allows the suspension of the hand-held power tool to be optimally adjusted to the center of gravity of the hand-held power tool. Moreover, the interface can be adapted to various hand-held power tools and types of hand-held power tools by means of a distance that can be adjusted between the first fastening means and the counter structure and by an adjustable diameter of the counter structure. In further aspects, the invention relates to the use of the proposed interface for fastening a hand-held power tool to a supporting structure and to a corresponding method.

Description

DEVICE FOR ACCOMPANYING A HANDHELD MACHINE

The present invention relates to a device for receiving a handheld power tool. The device can serve as an interface between the handheld power tool and a support or carrying structure and comprises a first and a second fastening means and a counter structure. With the proposed interface, it is possible to optimally adapt the suspension of the hand machine tool to the center of gravity of the hand machine tool. In addition, the interface can be adapted to different handheld power tools or types of handheld power tools by an adjustable distance between the first fastening means and the counter structure or an adjustable diameter of the counter structure. In further aspects, the invention relates to a use of the proposed interface for fastening a hand power tool to a support structure, as well as a corresponding method.

Background of the invention:

Heavy power tools such as drill, chisel or combination hammers, as well as core drilling devices, are often used in serial or long-term applications. In order to compensate for the forces that occur, in particular weight forces, the user is exposed to high physical stress, which can cause rapid fatigue or even physical damage. Therefore, many users endeavor to reduce the physical stress to use support structures in which the hand-held power tools can be hung or latched. These body-borne and / or external support structures can at least partially absorb the forces that occur and thus enable the user to work longer with the hand-held power tool. Possible configurations of known support structures are shown in FIG.

Most power tools, however, do not have any interfaces that can be used to attach the device to a support structure. Therefore, slings or ropes are mostly used in the prior art to connect the power tools with the support structure. This procedure is associated with the disadvantage that the loops or ropes in some handheld power tools can inadvertently activate switches or that the slings or ropes get into the moving insert tools of the handheld power tools can guess. Obviously, this can impair working with the handheld power tool or pose a risk to the user.

Another disadvantage of a conventional suspension by means of ropes or slings is that the hand-held power tool cannot be suspended exactly in its center of gravity with ropes or slings. This can disadvantageously make the handling of the hand tool machine difficult and the quality of work are impaired.

For example, DE 10 2016 013 145 A discloses a mounting bracket for an implement, such as a brushcutter. The receiving clip is designed to be flexible and to run transversely to a slot, so that the slot can be widened. In the context of DE 102016 013 145 A, elastic properties of a receiving clip are used to connect the clip to an implement.

The disadvantage of the suspension solutions for handheld power tools known from the prior art is that the elastic properties of materials, ropes or mounting brackets are often used to establish a connection between a handicraft power tool and a support structure. However, such connections based on the elasticity of a material are hardly suitable when used in connection with hammering and / or rotating handheld power tools, since they absorb the vibrations that can occur when working with the handheld power tools and, for example, can come into resonance. The absorption of the vibrations can also lead to a weakening of the connection between the handheld power tool and the support structure, which in the worst case can lead to the connection being broken. In the light of the known prior art, it would be desirable to have a fastening solution for a handheld power tool to a support structure that is user-friendly and less susceptible to the vibrations that occur when working with the handheld power tools. Furthermore, the technical solution to be provided should enable optimal balancing of the handheld power tool in relation to the support structure in order to further facilitate work with the handheld power tool. In addition, it would be desirable if the technical solution to be provided could be used as universally as possible for a large number of different handheld power tools or types of handheld power tools.

The object of the present invention is to provide solutions for the technical needs described above and to provide a fastening solution for connecting a handheld power tool with a support structure that overcomes the shortcomings and disadvantages of the prior art. The object is achieved by the subject matter of the independent claims. Advantageous embodiments relating to the subject matter of the independent claims can be found in the dependent subclaims.

Description of the invention:

The object is achieved by a device for receiving a handheld power tool, the handheld power tool having a first handle and a second handle and the first handle being attachable to the handheld power tool with a tensioning strap. The device can also be referred to as an interface within the meaning of the invention and is characterized in that it comprises the following components:

a first fastening means which is designed to come into engagement with the tensioning strap and to form a first contact area between the handheld power tool and the device,

- A second fastening means with which the device can be fastened to a support structure, the second fastening means being designed to be movable,

a counter structure which is set up to form a second contact area between the handheld power tool and the device.

The invention is advantageously a particularly universally usable receiving device for handling various handheld power tools, such as hammer drills, combination hammers or chisel hammers, and for example core drills. The devices that are to be connected to a support structure in the context of the present invention are preferably hand-held machine tools which each have a first and a second handle. It is preferred in the context of the invention that the first handle of the machine tool can preferably also be referred to as the front handle or side handle of the machine tool. If the user who works with the handheld power tool is a right-handed person, the first handle of the handheld power tool is usually gripped by the user's left hand. The first handle can be attached to the power tool with a tension band; it is preferably arranged on a front area of the handheld power tool. The second handle can be C-shaped or D-shaped, for example, and is usually enclosed in the right hand of a right-handed person. The second handle is preferably arranged in a rear area of the handheld power tool. The handheld power tool can furthermore have a housing which surrounds the internal components of the handheld power tool in a manner known to a person skilled in the art and shapes the external shape of the handheld power tool. In particular, the exterior of the handheld power tool can be shaped by its device neck. In the context of the invention, this means that the handheld power tool can have different large diameters in the area of the first handle. A particular advantage of the proposed invention is that the proposed interface is suitable for use with handheld power tools with different diameters or housing shapes. This advantage is brought about in particular by the provision of the counter structure, which can be designed either as a receiving device for a rear area of the hand tool machine or as a retaining ring that can be exchanged or is designed to be adjustable in size. The retaining ring is preferably located in a front area of the interface and in particular in spatial proximity to the first fastening means. When using an interchangeable retaining ring as a counter structure, various retaining rings can be used, the diameter of which corresponds to the diameter of the neck of the handheld power tool. If a size-adjustable retaining ring is used as a counter structure, the size or diameter of the retaining ring can be adapted to the diameter of the device neck. For this purpose, a setting means can be seen in particular.

The counter structure is set up in particular to form a second contact area between the handheld power tool and the device. In the context of the invention, the term “contact area” preferably means that the handheld power tool and the proposed interface are in contact with one another in these areas, ie touch one another, the contact areas being arranged in particular on an underside of the interface. This underside of the interface can in particular face an upper side of the handicraft machine tool. It has been found to be particularly expedient for the system comprising the handheld power tool and the device to have at least two contact areas. A first contact area between the handheld power tool and the interface is preferably formed by the first fastening means, while a second contact area is formed between the handheld power tool and the interface by the counter structure. It is preferred in the context of the invention that the first contact area is present in a front area of the interface, while the second contact area can also be present in a front area of the interface if the counter structure is designed as a retaining ring. If the counter structure is designed as a receiving area, it is preferred for the purposes of the invention that the second contact area is present in a rear area of the interface. The use of a receiving area as a counter structure advantageously makes it possible to ensure a large distance between the first and second contact areas can be. This enables particularly stable mounting and holding of the handheld power tool within the interface. The advantage of using the retaining ring is, in particular, the great flexibility of the counter structure created in this way.

The proposed interface is set up to accommodate a handheld power tool. In this respect, it can also be referred to as a receiving device. The proposed device can also be used to connect the handheld power tool to a support structure. In this context it functions as an interface or adapter. With the proposed interface, it is possible to optimally adapt the suspension of the handheld power tool to the center of gravity of the handheld power tool. In other words, the handheld power tool can be balanced particularly well with the aid of the invention. This is advantageously made possible in that the interface comprises a second fastening means that is designed to be movable or displaceable with respect to a longitudinal axis of the device. In other words, the second fastening means can be moved along an axis running centrally through the interface. For this purpose, the interface includes a grid with various receiving recesses for the second fastening means. The second fastening means can be moved over the grid and, depending on the focal point position of the handheld power tool, snap into one of the depressions and be fastened. As a result, the second fastening means not only allows a handheld power tool to be connected to a support structure, but also the adaptability of the attachment or suspension of the handheld power tool in relation to the support structure. The second fastening means is particularly simple and therefore requires little maintenance. In addition, the handling of the second fastening means for adapting the suspension of the hand machine tool is particularly intuitive and easy to learn depending on its focus. In this respect, the provision and configuration of the second fastening means provides a particularly user-friendly option for balancing the handheld power tool when the handheld power tool is to be fastened to a support or carrying structure.

Another advantage of the invention is that the proposed interface enables a mechanical connection between the interface, the handheld power tool and the support structure. In particular, this overcomes the disadvantage that elastic properties of materials or the like are used to connect the components of a work system that includes an interface, a handheld power tool and a support structure to one another. Rather, in the context of the present invention, a Binding of the system components proposed, in which mechanical methods, such as bracing, jamming, wedging or clamping, are used to connect the interface, the handheld power tool and the support structure with one another in a particularly safe, stable and insensitive manner to vibrations.

In addition, the interface can be adapted to different handheld power tools or types of handheld power tools by an adjustable distance between the first fastening means and the counter structure or by an adjustable diameter of the counter structure. The proposed interface is therefore particularly universally replaceable and can be used for a large number of different devices and product classes.

This leads to cost savings for the user, since he only needs an interface as an adapter for suspending various handheld power tools on a support structure. The distance between the first fastening means and the counter structure designed as a receiving area can be adjusted in particular by an adjustment means, the adjustment means preferably being arranged in a front region of the interface. In the context of the invention, this adjustment means can preferably be referred to as the first adjustment means and bear the reference symbol 13a. It can preferably be designed as a knurled screw. By actuating the setting means, the distance between the first fastening means and the receiving area can be changed so that the distance can be optimally set for larger and smaller handheld power tools. As a result of the optimal setting of the distance between the first fastening means and the receiving area, the handheld power tool with the interface can be braced safely and robustly against shocks or vibrations. If the setting means is designed as a knurled screw, the distance between the first fastening means and the receiving area can be adjusted by turning the knurled screw. The distance can preferably be set continuously so that a particularly precise adaptation of the distance to the handheld power tool to be fastened or clamped can be achieved.

In a preferred embodiment, the invention relates to a device for receiving a handheld power tool, wherein the handheld power tool has a first handle and a second handle and the first handle can be fastened to the handheld power tool with a tightening strap, the device comprising the following components:

- A first fastening means which is set up to come into engagement with the tensioning strap and to form a first contact area with the handheld power tool,

- A second fastening means with which the device can be fastened to a support structure is, wherein the second fastening means is designed to be displaceable,

- A receiving area as a counter structure to receive part of the handheld power tool, and

- An adjustment means to adjust a distance between the first fastening means and the receiving area.

If the counter structure is designed as a retaining ring, the interface can comprise an adjustment means, which in the context of the invention is preferably referred to as a second adjustment means and which bears the reference symbol 13b. The retaining ring can have a slot or be designed to be slotted. The size of the slot and thus the diameter of the retaining ring can be set with the second setting means and, in particular, can be adapted to the diameter of a handheld power tool that is to be received by the receiving device. In particular, the diameter of the counter structure, which is designed as a retaining ring, can be adapted to the diameter of a neck of the handheld tool machine using the second setting means. As an alternative to the size-adjustable retaining ring, a kit with several retaining rings can be provided, the retaining rings each having different diameters. It can then be used as a counter-structure for each hand tool that is to be picked up by the recording device, the diameter of which corresponds to the diameter of the device neck of the desired hand tool machine. In this case, the proposed interface comes without a setting means.

In this preferred embodiment, the invention relates to a device for receiving a handheld power tool, the device comprising the following components:

a second fastening means with which the device can be fastened to a support structure, the second fastening means being designed to be displaceable,

- A retaining ring as a counter structure, the retaining ring being set up to form a second contact area between the handheld power tool and the device

- Optionally, an adjustment means to adjust a diameter of the retaining ring if the retaining ring is designed to be adjustable in size.

Otherwise, a kit with several retaining rings can be provided, the individual retaining rings of the kit having different diameters. The first fastening means is set up to come into engagement with a tensioning strap of the hand machine tool and thus to connect the interface to a front region of the hand machine tool. In particular, the first fastening means forms a first contact area with the handheld power tool. The tightening strap is used to attach a lateral handle, which is referred to as the first handle of the handheld power tool in the context of the invention, to the handheld power tool. In particular, the first handle of the handheld power tool is in a front area of the handheld power tool. The first fastening means can, for example, be designed as a hook or hook-shaped, so that it can be guided or pushed between the tensioning strap and the hand-held power tool. In combination with the variable distance between the first fastening means and the receiving area or with the size-adjustable or exchangeable retaining ring as a counter structure, a stable connection between the handheld power tool and the interface can be provided. Tests have shown that this connection is particularly stable against shocks or vibrations and is therefore particularly well suited for use on construction sites.

In a preferred embodiment of the invention, the receiving area of the interface is set up to receive at least part of the handheld power tool, so that a connection is created between the interface and the rear area of the handheld power tool or its housing. In the context of the invention, the receiving area can also be referred to as a handle receiving area because the receiving area can be particularly suitable for receiving the second handle or part of the housing of the handheld power tool, which is located in the area of the second handle of the handheld power tool. The second handle is in the rear of the hand tool machine and is usually grasped by a right hand of a right-handed user. The handheld power tool can comprise a housing, the receiving area of the interface preferably comprising a cavity into which a part of the housing of the handheld power tool can be inserted. This introduction or pushing in can be achieved, for example, by the adjustment means or the shortening of the distance between the receiving area and the first fastening means. In other words, the hand-held power tool can be pushed into the receiving area by actuating the setting means. As a result, the distance between the receiving area and the first fastening means is shortened and the handheld power tool is braced or wedged within the interface. This bracing leads to a particularly stable, mechanical connection between the interface and the hand tool. The proposed device can be used to connect a handheld power tool to a support structure. Such body-worn or external support structures usually absorb the forces or vibrations that occur when working with a handheld power tool and support or facilitate the work of a user. Various conventional support structures, as they are known from the prior art, are shown in FIG. 1. For example, they can be attached to a user with a torso belt or a harness and / or be constructed like a gallows. Stirrup-like constructions that are guided over the user's shoulder are also known in the prior art, as well as free-standing and stand-alone constructions. It is not the object of the present invention to specify a specific configuration of the support structure. Rather, the present invention relates to an interface as an adapter between a handheld power tool and a support structure. However, in the context of the present invention, a system is also disclosed that comprises a handheld power tool, an interface and a support structure, the interface being set up to connect the handheld power tool to the support structure.

It is preferred in the context of the invention that the first fastening means is designed as a hook, the hook being set up to be pushed under the tensioning strap of the handheld power tool. The use of the existing tensioning strap with which a first handle is attached to the handheld power tool leads to synergistic effects and, surprisingly, also to a particularly stable mechanical connection between the first fastening means and the handheld power tool. The tension band is preferably stretched taut around a front part of the hand tool. The first fastening means forms a first contact area between the handheld power tool and the interface. Tests have shown that the first fastening means can nevertheless be pushed under the tensioning strap without great effort in order to achieve a fastening effect. The hook, which can be used as the first fastening means, is attached to a part of the interface in front of it. It is preferably located in close proximity to the setting means and is on the underside of the interface, which preferably faces the hand tool when the interface is connected to the hand tool. The hook preferably has a flat underside which is designed to be pushed under the tensioning strap. This flat underside of the hook is preferably formed essentially parallel to a preferably planar area of the upper side of the handheld power tool, so that the hook, tensioning strap and handheld power tool can easily engage one another in order to establish a stable connection between the components. In a further embodiment of the invention, it is preferred that the second fastening means is designed as a retaining eyelet, the retaining eyelet being displaceable axially along a virtual central axis that runs through the interface by means of a grid. In other words, the second fastening means is designed to be movable, in particular slidable, with respect to the interface. It can preferably be moved via a grid of the interface. Due to the displaceability of the second fastening means, its position in relation to the handheld power tool can be adapted to the center of gravity of the handheld power tool. For example, the second fastening means can be locked in the grid directly above the center of gravity of the handheld power tool. By choosing a position of the second fastening means that is adapted to the center of gravity, the handheld power tool can be optimally balanced, as a result of which working with the handheld power tool can be made considerably easier for the user. According to the invention, it is particularly preferred that the second fastening means is designed to be movable along a central axis of the interface so that the position of the second fastening can be adapted to a center of gravity of the handheld power tool.

The second fastening means is provided in particular for fastening the handheld power tool or the interface to the support structure. A rope or another fastening component, for example, which can be connected to the support structure, can be passed through the holding eyelet. Of course, the second fastening means can also be designed other than as a retaining eyelet, as long as it is suitable for connecting the interface to a support structure. The movement of the second fastening means is preferably carried out along an axis which runs centrally or centrally through the interface. In the context of the invention, the central axis is preferably also referred to as the longitudinal axis of the interface. The position of this central axis is shown in FIGS. The second fastening means is preferably movably arranged between the front and rear regions of the interface. In the accompanying figures, the second fastening means is essentially located centrally between the front and rear areas of the interface.

It is preferred in the context of the invention that the interface has a front area and a rear area, the first fastening means and the optional setting means being arranged in the front area of the interface. If the counter structure is designed as a receiving area, it is preferably in the rear area of the interface in order, while the counter structure is present in a front area of the interface when it is designed as a retaining ring. The front area of the handheld power tool is preferably that part of the device on which the tool holder is located, a first handle and the tightening strap securing the first handle are located. The handheld power tool extends over a housing to a final rear area in which the second handle of the handheld power tool is arranged, for example. The front part of the handheld power tool and the front part of the interface, as well as the rear part of the handheld power tool and the rear part of the interface, preferably correspond to one another. In the context of the invention, the term “correspond to one another” preferably means that these areas are in spatial proximity to one another when the handheld power tool is connected to the interface.

Even if individual features of the interface are specified in relation to features of a handheld power tool, this does not result in confusion for the person skilled in the art. Rather, the reference clarifies for which type of handheld power tool the proposed interface can be used, namely preferably those handheld power tools that have a first and a second handle, the first handle designed as a side handle and fastened to the handheld power tool with a tensioning strap can be. In this respect, the reference specifies the features of the proposed interface and explains to the person skilled in the art about possible uses of the invention.

In a further embodiment of the invention, it is preferred that the setting means is designed as a knurled screw. The specialist knows what a knurled screw is. The knurled screw is used in the context of the present invention to adjust a distance between the first fastening means and the receiving area. The knurled screw can alternatively be used to adjust a diameter of the retaining ring if the counter structure of the interface is designed as a size-adjustable retaining ring. This advantageously makes it possible for the interface to be used for many different handheld power tools or types of handheld power tools.

In other words, the interface is preferably characterized in that it comprises the following components and functions:

a hook which is designed to come into engagement with the tensioning strap and to connect the interface to a front area of the handheld power tool, the hook forming a first contact area between the handheld power tool and the interface,

- A holding eyelet with which the interface can be attached to a support structure, where the second fastening means is designed to be displaceable in order to adjust the position of the holding eyelet in relation to the hand tool to a focus of the hand tool adapt the machine,

- A counter structure that forms a second contact area between the handheld power tool and the interface.

The interface can also have a knurled screw in order to set a distance between the hook and the counter structure, so that the interface can advantageously be used for various hand power tools. The counter structure can preferably be designed as a receiving area in order to receive part of the housing of the handheld power tool and to connect the interface to a rear area of the handheld power tool. The counter structure can alternatively be designed as an exchangeable or size-adjustable retaining ring. In the context of the invention, it is preferred that the retaining ring is arranged in a front region of the interface, preferably in spatial proximity to the first fastening means. In this embodiment of the invention, the setting means can be used to set a diameter of the retaining ring and thus to adapt it to the dimensions of the hand power tool that is to be connected to a support structure.

In one embodiment, the invention represents an interface between a handheld power tool and a support structure or device. The handheld power tool can be a drill, chisel or combination hammer or a hand-held core drilling device. However, various other types of hand tool machines are also conceivable. To fasten the handheld power tool, the first fastening means of the interface, which can be designed as a front hook, for example, is clamped under the tensioning strap of the side handle of the handheld power tool. Straps can preferably be used to attach handles or side handles to hand tool machines or to attach them to it. By actuating the setting means, a distance between the hook and the handle receptacle can be shortened or a diameter of the retaining ring can be adjusted, whereby the tool is clamped ver in the receiving device. The adjustment means can be actuated in particular by turning the knurled screw, which can be used as an adjustment means. Because of this ability to adjust the distance between the first fastening means and the receiving area or because the diameter of the counter-structure can be steepened, the proposed interface can advantageously be used for different devices with different housing sizes. Since the various devices can have very different focus positions, the retaining eyelet, which preferably forms the second fastening means, can be moved in the axial direction by means of a grid. This functionality of the invention is particularly user-friendly, because the focus of the hand machine tool, for example when using different tools such as drills, chisels or drill bits, can change significantly. The movable second fastening means allows the user to easily and easily adjust the position of the retaining eyelet to the possibly changed center of gravity of the handheld power tool when changing the tool of the handheld power tool and thus continue working comfortably without losing a lot of time. In particular, the handheld power tool can be easily balanced at any time by the displaceable second fastening means, whereby the handling of the handheld power tool is further significantly facilitated by the invention.

In a second aspect, the invention relates to a use of the proposed interface for fastening a handheld power tool to a support structure. The use is characterized in that the interface has a second fastening means with which the interface can be fastened to a support structure. The interface can preferably have, in particular, a retaining eyelet in order to fasten the interface to the support structure.

In a further aspect, the invention relates to a method for fastening a handheld power tool to a support structure. The method is characterized by the following steps: a) providing a support structure and a handheld power tool, b) providing a proposed interface, c) connecting the handheld power tool to the support structure using a second fastening means of the interface.

The terms, definitions and technical advantages introduced for the interface apply analogously to their use and the proposed method.

Further advantages of the invention emerge from the following description of the figures. Various exemplary embodiments of the present invention are shown in the figures. The figures, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

In the figures, the same and similar components are numbered with the same reference symbols. Show it:

Fig. 1 Views of various support structures

Fig. 2 side view of an exemplary hand tool that is connected to a preferred embodiment of an interface.

3 is an oblique front view of an exemplary handheld power tool that is connected to a preferred embodiment of the interface.

4 side view of a preferred embodiment of the interface

Fig. 5 plan view of a preferred embodiment of the interface

6 side view of a second preferred embodiment of the interface

7 is an oblique view of the second preferred embodiment of the interface

8 side view of the second preferred embodiment of the interface

Embodiments and description of the figures:

FIG. 1 shows views of various support structures (10) as they are known from the prior art. The support structures (10) can be connected to hand machine tools (2), although so far hardly technically satisfactory solutions have been known to ensure a stable, secure and robust connection between the support structure (10) and hand tool machine (2). Such a technical solution, which is also easy to use, allows the position of the handheld power tool (2) to be adjusted in relation to the support structure (10) to the center of gravity of the handheld power tool (2) and is universal, ie for a particularly large number of different handheld power tools (2) or types of hand tool machines (2), which can be used, is provided with the present invention. This invention is illustrated in Figures 2-5.

Figures 2 to 5 show a first embodiment of the invention, in which a counter structure (11) is designed as a receiving area and is located in the rear area (17) of the interface (1). In particular, Fig. 2 shows a side view of an exemplary hand tool machine (2), which is connected to a preferred embodiment of the proposed interface (1) ver (“connected state”) be a device with a network connection. In the embodiment of the invention provided in FIG. 2, the interface (1) is on an upper side of the handheld power tool (2). The handheld power tool (2) has a housing (3), a first handle (4) and a second handle (5), the first handle (4) being in a front area (8) of the handheld power tool (2) and with a The tensioning band (6) is attached to the handheld power tool (2). In particular, the tensioning strap (6) can be arranged circumferentially around the front area (8) of the handheld power tool (2), it being usually clamped tightly or tautly. The first fastening means (7) of the interface (1) can be pushed between the tensioning strap (6) and the hand tool machine (2). The first fastening means (7) can in particular be designed as a hook, so that a flat underside of the first fastening means (7) rests on a preferably flat section of the upper side of the handheld power tool (2). This establishes a connection between the first fastening means (7) of the interface (1) and the handheld power tool (2).

The adjusting means (13a), which can be designed as a knurled screw, is also located in the front area (16) of the interface (1). With him / her, a distance between the first fastening means (7) and a receiving area of the interface (1) can be changed, wherein the receiving area can represent a counter structure (11) within the meaning of the invention. The receiving area is preferably in a rear area (17) of the interface (1). If the interface (1) is to be connected to a handheld power tool (2), the distance between the first fastening means (7) and the receiving area can be shortened with the setting means (13a) so that the handheld power tool (2) is in the interface (1) is jammed or clamped. The receiving area of the interface (1) can, for example, be at least partially hollow or have a cavity, the receiving area in this cavity being able to accommodate part of the machine tool (2) or the housing (3) of the handheld power tool (2). By accommodating part of the handheld power tool (2) in the receiving area or a cavity in the receiving area, a particularly stable, mechanical connection between the interface (1) and the handheld power tool (2) can be made possible.

The second handle (5) of the handheld power tool (2) is preferably located in a rear area (12) of the handheld power tool (2). On the upper side of the interface (1) there is a grid (14) with the aid of which the second fastening means (9) of the interface (1) can be moved along a central axis (15) of the interface (1). Due to the movable configuration of the second fastening means (9), its position can be adapted to a center of gravity of the handheld power tool (2). This function is particularly advantageous if the center of gravity of a handheld power tool (2) changes, for example due to a change in the tool, such as a drill, chisel or drill bit, in the handheld power tool (2).

3 shows an oblique front view of an exemplary handheld power tool (2) which is connected to the first preferred embodiment of the interface (1). In particular, the contact areas (18, 19) are shown in FIG. 3. In the embodiment of the invention shown in Fig. 3, the first contact area (18) is in the area of the tensioning band (6) of the handheld power tool (2) or the first fastening means (7) of the interface (1), while the second contact area ( 19) is present in the area of the basic structure (11) designed as a receiving area. In the contact areas (18, 19) there is preferably a contact between the interface (1) and the handheld power tool (2), ie in these areas (18, 19) the interface (1) and the handheld power tool (2) touch each other . The first contact area (18) is preferably formed by the first fastening means (7), which is preferably designed as a hook, and the tensioning strap (6) or the handheld power tool (2), while the second contact area (19) is formed by the receiving area and the rear area ( 12) of the housing of the handheld power tool (2) is formed. Fig. 4 shows a side view of the first preferred embodiment of the interface (1), the interface (1) in the view shown in FIG left half of the image the front area (16) of the interface (1) and in the right half of the image the rear area

(17) of the interface (1). The adjusting means (13a) and the first fastening means (7) are located in the front area (16) of the interface (1). In a particularly preferred embodiment of the invention, these can be formed by a knurled screw (13) and a hook (7). The hook (7) is designed to come into engagement with a tensioning strap (6) of the handheld power tool (2). The hook (7) in particular forms a first contact area

(18) with the hand machine tool (2). The setting means (13a) can be used to set a distance between the first fastening means (7) and the receiving area of the interface (1), the receiving area being in the rear area (17) of the interface (1). In the first preferred embodiment of the invention, the receiving area forms the counter structure (11) and is preferably set up to receive part of the handheld power tool (2) or a connection between the interface (1) and the rear area (12) of the handheld power tool (2) ) to produce. The receiving area can preferably also be referred to as "handle receiving".

In the upper area of the interface (1) a grid (14) is arranged, which allows an axial movement of the second fastening means (9) along a central axis (15) of the interface

(I) allows. The central axis (15) preferably runs essentially parallel to the grid (14) of the interface (1). Due to the movable design of the second fastening means (9), which can in particular be designed as a retaining eyelet, the position of the second fastening means (9) can be adapted to the center of gravity of the handheld power tool (2). The second fastening means (9) is provided in particular to connect the handheld power tool (2) to a support structure (10).

Fig. 5 shows a plan view of the first preferred embodiment of the interface (1). In the plan view of the interface (1) shown in FIG. 5, in particular the position and the course of the central axis (15) of the interface (1) can be clearly seen.

Figures 6 to 8 show a second embodiment of the invention, in which a counter structure

(II) is designed as a retaining ring and is present in the front area (16) of the interface (1). The retaining ring can be placed around the device neck of a handheld power tool (2) and adapted to the size or circumference of the handheld power tool neck using an adjusting means (13b). The first fastening means (7), which is preferably designed as a hook is, forms a first contact area (18) and is in spatial proximity to the counter structure designed as a retaining ring (11).

7 shows an oblique front view of the second preferred embodiment of the interface

(I). The counter structure (11), which forms the second contact area (19) with the handheld power tool (2, not shown), is arranged in the front area (16) of the interface (1). The contact is formed in particular by placing the retaining ring around the neck of the handheld power tool (2). The retaining ring has a slot in its upper area, and the size of this slot-shaped opening can be adjusted. This is preferably done with the setting means (13b), which can be designed in particular as a knurled screw. It is preferred in the context of the invention that the setting means (13b) is set up to measure a diameter of the basic structure designed as a retaining ring

(I I), whereby the basic structure (11) or the device (1) can be adapted particularly flexibly to different handheld power tools (2) or their dimensions.

The two contact areas (18, 19) are preferably used to give stability to the system of hand-held power tool (2) and interface (1). In particular, the provision of two contact areas (18, 19) enables a low-vibration suspension of the hand tool machine (2) in the device (1). The retaining ring of the basic structure (11) advantageously surrounds the neck of the handheld power tool (2), so that a particularly stable connection between the handheld power tool (2) and the device (1) can be achieved in this way.

8 shows a side view of the second preferred embodiment of the interface (1). The first fastening means (7) and the basic structure (11) can be clearly seen in the front area (16) of the interface (1), with the first fastening means (7), which is preferably designed as a hook, having a first contact area (18) between the handheld power tool (2 ) and device (1), while the base structure (11), which is preferably designed as a retaining ring, forms a second contact area (19) between handheld power tool (2) and device (1). List of reference symbols

1 device or interface

2 hand machine tool

3 Housing of the handheld power tool 4 First handle of the handheld power tool

5 Second handle of the hand machine tool

6 Tension band of the hand machine tool

7 First fastener

8 Front area of the hand machine tool 9 Second fastening means

10 support structure

11 Recording area

12 Rear area of the hand machine tool

13 Adjustment means 14 Grid

15 Virtual central axis through the hand machine tool

16 Front area of the interface

17 Rear area of the interface

18 First contact area 19 Second contact area

Claims

1. Device (1) for receiving a hand machine tool (2), wherein the hand machine tool (2) has a first handle (4) and a second handle (5) and the first handle (4) with a strap (6) on the Hand machine tool (2) can be fastened, characterized in that the device (1) comprises the following components:

- A first fastening means (7) which is set up to come into engagement with the tensioning band (6) and to form a first contact area (18) between the hand tool machine (2) and the device (1),

- A second fastening means (9) with which the device (1) can be fastened to a support structure (10), the second fastening means (9) being designed to be movable,

- A counter structure (11) which is set up to form a second contact area (19) between the handheld power tool (2) and the device (1).

2. Device (1) according to claim 1, characterized in that the first fastening means (7) is designed as a hook, wherein the hook is directed to being pushed under the tensioning strap (6) of the handheld power tool (2) to who the.

3. Device (1) according to claim 1 or 2, characterized in that the second fastening means (9) is designed as a holding eyelet, the holding eyelet by means of a grid (14) axially along a virtual central axis (15) which is through the device ( 1) runs, can be moved.

4. Device (1) according to one of the preceding claims, characterized in that the second fastening means (9) is designed to be movable along a virtual central axis (15) of the Vorrich device (1) so that the position of the second fastening means (9) at a center of gravity the handheld power tool (2) is adaptable.

5. Device (1) according to one of the preceding claims, characterized in that the counter structure (11) is designed as a receiving area to receive part of the hand-held power tool (2).

6. The device (1) according to claim 5, characterized in that the device comprises an adjusting means (13a) in order to adjust a distance between the first fastening means (7) and the counter-structure (11) designed as a receiving area.

7. Device (1) according to one of claims 1 to 4, characterized in that the counter structure (11) is designed as a retaining ring (11).

8. The device (1) according to claim 7, characterized in that the device comprises an adjusting means (13b) in order to adjust a diameter of the counter structure designed as a retaining ring (11).

9. Device (1) according to one of claims 6 or 8, characterized in that the adjusting means (13a or 13b) is designed as a knurled screw.

10. Use of a device (1) according to one of the preceding claims for fastening a hand power tool (2) to a support structure (10), characterized in that the device (1) has a second fastening means (9) with which the device ( 1) can be attached to the support structure (10).

11th A method for fastening a hand machine tool (2) to a support structure (10), the method being characterized by the following steps: a) providing a support structure (10) and a hand machine tool (2), b) providing a device (1) according to a of claims 1 to 9, c) connecting the hand power tool (2) to the support structure (10) using a second fastening means (9) of the device (1).