This application is a 35 U.S.C. § 371 National Stage Application of PCT/EP2016/073598, filed on Oct. 4, 2016, which claims the benefit of priority to Ser. No. DE 10 2015 225 748.7, filed on Dec. 17, 2015 in Germany and which claims the benefit of priority to Ser. No. DE 10 2016 213 618.6, filed on Jul. 25, 2016 in Germany, the disclosures of which are incorporated herein by reference in their entirety.

BACKGROUND

The disclosure relates to a hand-held power tool.

In DE 2008 009 277 A1 is ah electric hand-held power appliance, having a housing body that accommodates the electric-motor drive components and in which air inlet openings are also provided for a cooling air flow applied to the electric-motor drive components. Furthermore, the appliance is realized such that a filter means is provided, in the region of the air inlet openings, by means of which, in particular, magnetization dust can be kept away from the electric-motor drive components.

SUMMARY

There ensues from the prior art the object of providing a hand-held power tool having a filter carrier, the filter carrier being easily separable from the hand-held power tool.

The disclosure relates to a hand-held power tool having a housing and having a filter carrier. The filter carrier is realized such that it can be separably fastened to the hand-held power tool. The hand-held power tool may be realized, exemplarily, as an angle grinder, a power drill, a hammer drill, an orbital sander, a router, a power sander, etc. The hand-held power tool my furthermore be realized as mains-operated hand-held power tool or as a battery-operated hand-held power tool. A motor, in particular an electric motor, may be accommodated in the housing of the hand-held power tool. The motor is designed to drive a drive shaft. Furthermore, the hand-held power tool has a tool that can be connected to the drive shaft of the elect is motor, for example via a transmission. The hand-held power tool has a housing axis, which may represent the tool axis or the drive axis of the hand-held power tool. The drive axis of the hand-held power tool is defined, in particular, by the drive shaft of the motor of the hand-held power tool. The tool axis of the hand-held rower tool is defined, in particular, by an output shaft of the hand-held power tool that is designed to transmit torque to a tool of the hand-held power tool. The filter carrier comprises a filter carrier element that has at least one receiving opening, which is designed to receive a filter element. The receiving opening of the filter carrier may advantageously be arranged in the region of an air inlet opening of the hand-held power tool, in such a manner that an air flow, in particular a cooling air flow, can enter the hand-held power tool solely through the receiving opening. The filter carrier element of the filter carrier may made, advantageously, of dimensionally stable plastic. The filter carrier may be of a single-piece or multi-piece design. The filter element of the filter carrier may advantageously be arranged in such a manner in the receiving opening of the filter carrier that material particles and dust are prevented from entering the housing of the hand-held power tool through the filter element. The filter element of the filter carrier may be made of a dust-tight material. The filter element may be made, in particular, of a woven plastic fabric, woven textile fabric or woven metal fabric, or plastic mesh or metal mesh. In particular, the filter element may be connected to the filter carrier element of the filter carrier by injection molding, adhesive bonding, clipping, insertion, hot-stamping or ultrasonic welding. The filter carrier comprises at least one first fastening element and at least one second fastening element, for separably fastening the filter carrier to respectively corresponding securing elements of the hand-held power tool by positive and/or non-positive engagement. In particular, the first fastening element of the filter element may be realized such that it can be separably connected to the first securing element of the hand-held power tool, and the second fastening element of the filter element may be realized such that it can be separably connected to a second securing element of the hand-held power tool. The filter carrier is realized such that it can be connected, in particular by positive and/or non-positive engagement, to the hand-held power tool.

Furthermore, the filter carrier is realized such that it can be separably fastened to the hand-held power tool by an actuation of an actuating unit. The actuating unit may be assigned to the filter carrier or to the hand-held power tool. The actuating unit is realized, in particular, such that it can be actuated manually or without the use of a tool. Advantageously, the actuating unit is arranged such that it is easily accessible for a user of the hand-held power tool having a filter carrier. In particular, the actuating unit may be arranged on the outer circumferential surface of the filter carrier or of the housing of the hand-held power tool.

The first fastening element of the filter carrier and the second fastening element of the filter carrier may be arranged at opposite end regions of the filter carrier. End regions of the filter carrier are to be understood to mean, in particular, the lateral edges or the filter carrier or the immediate vicinity of the lateral edges of the filter carrier. It is also conceivable for two first or two second fastening elements of the filter carrier to be arranged at opposite end regions. This results in the filter carrier being securely fastened to the hand-held power tool.

Furthermore, the filter carrier may be realized such that it can be applied substantially along a housing axis of the hand-held power tool. In particular, the filter carrier is applied to the hand-held power tool coaxially in relation to the housing axis of the hand-held power tool. Alternatively, the filter carrier may also be realized such that it can be applied substantially transversely in relation to the housing axis of the hand-held power tool.

The first and/or the second fastening element of the filter carrier may be realized as a positive-engagement element. The positive-engagement element may be realized, exemplarily, as a hook-shaped element that is designed to engage in an opening. Alternatively, the positive-engagement element may also be realized as a shackle that is designed to encompass a protuberance. Furthermore, the positive-engagement element may also be realized as an indentation element.

The first and/or the second fastening element of the filter carrier may be realized as a latching element or a latching receiving opening. The latching element may be realized, in particular, as a flexible and/or resilient latching element. The latching element may be realized such that it can be separably connected by positive engagement to a corresponding latching receiving opening. In particular, the latching connection is effected automatically, and thus without an actuation of the actuating unit. The geometry of the latching element, in particular a swan-neck type, torsion or snap-hook type geometry, is advantageously realized in such a manner that, owing to the geometry, the latching element is of a resilient design.

The first and/or second fastening element of the filter carrier may be realized so as to be integral with the actuating unit. The actuating unit may advantageously be arranged in the vicinity, in particular the immediate vicinity, of the fastening elements of the filter carrier. In particular, the actuating unit may also be arranged adjacently or directly adjacently to the fastening elements of the filter carrier. Advantageously, the actuating unit may have a structure that is visible to the user, in particular a fluted structure, by which the position at which the actuation is to be effected is indicated to the user.

The actuating unit may be arranged on the filter carrier.

Alternatively, the actuating unit may be arranged on the hand-held power tool.

The first fastening element of the filter carrier may be realized as a latching element, and the second fastening element of the filter carrier may be realized as a posits engagement element, in particular as a guide element that is designed to guide the filter carrier when being applied to the hand-held power tool, and additionally to secure it radially and position it on the hand-held power tool.

The filter carrier may be realized as to be substantially U-shaped. Alternatively, the filter carrier may also be realized in the shape of a shell, in such a manner that it encloses or encompasses the outer circumferential surface of the hand-held power tool, at least partially, in particular in an angular range of less than 270°. In addition, the filter carrier may also be designed to at least partially cover the rear of the hand-held power tool. The filter carrier may be made of a low-flexibility plastic, for example TPE or polyamide, and/or of a dimensionally stable material. In particular, the at least one filter carrier element of the filter carrier may be realized so as to be dimensionally stable, in such a manner that the filter carrier is realized so as to be flexurally stable when being applied to the hand-held power tool. The individual components of the filter carrier, the filter carrier element, the at least one filter element and the first and the second fastening element may be of a single-piece or multi-piece design.

The filter carrier may have an elastic element, wherein the elastic element is designed to secure the filter carrier on the hand-held power tool in at least one direction, by means of biasing. In particular, the filter carrier may be biased contrary to the direction in which the filter carrier is applied to the hand-held power tool. Advantageously, the elastic element is arranged at the rear or on the inner lateral surface of the filter carrier element of the filter carrier. Owing to the biasing effected via the elastic element of the filter carrier element, the filter carrier can be fastened to the hand-held power tool substantially without play. The elastic element of the filter carrier is realized, in particular, so as to be integral with the filter carrier element of the filter carrier. The elastic element of the filter carrier may exemplarily be made of a plastic material that has a significantly greater elasticity that the filter carrier element of the filter carrier. Alternatively, the elastic element may also be realized by the geometry of the filter carrier element of the filter carrier. For example, the filter carrier element of the filter carrier may be realized so as to be at least partially of a swan-necked or corrugated shape in the direction of application. In particular, the second fastening element of the filter carrier may be realized as an elastic element. In this embodiment, the second filter element of the filter carrier and the second securing element of the hand-held power tool may be realized as resilient support elements or spring elements, in particular plastic spring elements. For a detailed disclosure of this fastening type, reference is made to DE 10 2009 026519 A1. In this embodiment, the second fastening element of the filter carrier or the second securing element of the hand-held power tool is realized so as to be elastically deformable transversely in relation to the direction of application. The second fastening element of the filter carrier may advantageously be arranged on the lateral surface of the filter carrier that faces toward hand-held power tool.

Further, the elastic element may be elastically deformable along the direction in which the filter carrier is applied to the hand-held power tool, in such a manner that at least one of the first fastening elements of the filter carrier and one of the first securing elements of the hand-held power tool can be connected only as a result of the deformation of the elastic element, in particular an axial lengthening of the elastic element. In particular, a separable connection of the first fastening element of the filter carrier to the first securing element of the hand-held power tool can be realized as a result of the deformation of the elastic element. In addition, the filter element of the filter carrier may also be realized so as to be elastic.

The securing element of the hand-held power tool corresponding to the first or second fastening element of the filter carrier may be realized as an air inlet opening of the hand-hold power tool. The air inlet opening may be realized, in particular, for radially and/or axially securing the filter carrier to the hand-held power tool. For this purpose, the first or the second fastening element of the filter carrier may be realized, in particular, as a protuberance arranged radially in the direction of the hand-held power tool. In particular, the protuberance of the filter carrier impinges on the lateral wall of an air inlet opening of the hand-held power tool in such a manner that the filter carrier is secured axially and/or radially on the hand-held power tool.

The outer surface of the filter carrier may be realized such that, in the mounted state, it is flush with the outer surface of a housing of the hand-held power tool. In particular, the filter carrier may be realized such that in contour it matches the outer surface of the housing of the hand-held power tool. The outer surface of the filter carrier is to be understood to mean, in particular, the lateral surface of the filter carrier that faces away from the hand-held power tool.

It furthermore proposed that the filter carrier can be attached to the hand-held power tool such that it can be pivoted about a rotary axis, wherein the rotary axis is formed by a securing element in the form of a pivot bearing element of the hand-held power tool. Advantageously, particularly and intuitive application of the filter carrier to the hand-held power tool can thereby be realized.

For the purpose of pivotally applying the filter carrier to the hand-held power tool, at least one first fastening element may be realized as a latching element, and at least one second fastening element may be realized as a hook-shaped pivot bearing, wherein the filter carrier element can be mounted on the corresponding securing element the hand-held power tool, in particular a formed-on stud, by means of the second fastening element. Alternatively, it is likewise conceivable for the second fastening element to be realized as a stud, and for the securing element to be realized as a pivot bearing.

In particular, the filter carrier may have a stop element, which is designed to limit the pivot movement. As a result, advantageously, the filter carrier element, when in the fastened state, cannot deviate upward past the fastening position. Particularly advantageously, the filter carrier is thereby accommodated virtually without play.

