US20190001477A1

US20190001477A1 - Hand-held power tool

Info

Publication number: US20190001477A1
Application number: US16/064,088
Authority: US
Inventors: Andre Ullrich; Andreas Schlegel; Christian Lang; Stefan Holst; Marcin Rejman; Wolf Zahn; Florian Kneer
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2015-12-22
Filing date: 2016-11-24
Publication date: 2019-01-03
Also published as: DE102016201802A1; CN108430706B; WO2017108317A1; EP3393722A1; DE102016205567A1; WO2017108433A1; EP3393721A1; US20210162575A1; EP3393722B1; US11420315B2; CN108698215A; CN108430706A; CN108698215B

Abstract

A hand-held power tool, in particular a drilling hammer and/or chisel hammer, that includes at least one housing, at least one handle, and at least one interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack. The hand-held power tool includes at least one damping unit that is provided for supporting the at least one handle relative to the at least one housing in a vibration-damped manner. The at least one interface device is situated on the at least one handle.

Description

FIELD OF THE INVENTION

The present invention is to a hand-held power tool.

BACKGROUND INFORMATION

Hand-held power tools, including a drilling hammer and/or a chisel hammer, are believed to be understood.

SUMMARY OF THE INVENTION

The present invention is directed to a hand-held power tool, in particular a drilling hammer and/or chisel hammer, that includes at least one housing, at least one handle, and at least one interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack.
It is provided that the hand-held power tool includes at least one damping unit that is provided for supporting the at least one handle relative to the at least one housing in a vibration-damped manner, the at least one interface device being situated on the at least one handle. Due to situating the at least one interface device on the at least one handle, in an operating state of the hand-held power tool a preferably low transmission of impacts and vibrations to the at least one rechargeable battery pack that is coupled to the hand-held power tool via the interface device may be achieved in an advantageously simple manner, as the result of which damage to the at least one rechargeable battery pack, in particular wear, caused by the mechanical stress, on electrical contact elements and/or fastening elements for connecting the at least one rechargeable battery pack to the hand-held power tool may advantageously be avoided. In addition, due to situating the at least one interface device on the at least one handle, a preferably good and balanced weight distribution of the hand-held power tool may be achieved, and due to the at least one vibration-damped handle, further components for damping the at least one rechargeable battery pack relative to the housing may be dispensed with.
In the present context, a “hand-held power tool” is understood in particular to mean a machine, in particular a power drill, a drilling hammer, a chisel hammer, a percussion drill, a saw such as a jigsaw or reciprocating saw, a plane, a screwdriver, a milling tool, a grinder, an angle grinder, an orbital sander, a garden tool, and/or a multifunctional tool, that processes a workpiece and is transportable by an operator without a transport machine. The hand-held power tool may have a mass that is in particular less than 40 kg, more preferably less than 10 kg, and particularly preferably less than 5 kg. The housing of the hand-held power tool preferably includes at least two housing shells, and in an installed state forms at least part, which may be at least a large part, of a shell surface of the hand-held power tool that is grippable by an operator of the hand-held power tool. The at least one housing of the hand-held power tool is made at least partially of plastic. In the present context, a “handle” is understood in particular to mean an element that is provided for holding and/or guiding the hand-held power tool. The handle is preferably grippable and/or holdable at least with one hand, and in particular includes at least one control element that is provided in particular for controlling a drive unit of the hand-held power tool. The control element may be configured, for example, as an on/off switch, as an automatic safety switch-off device, and/or as a metering controller for metering an impact energy. In particular, the handle is provided for being completely grasped all around with one hand by an in particular adult operator. A circumference of the handle is preferably 70 mm minimum, more preferably 90 mm minimum, and particularly preferably 110 mm minimum, and/or in particular a maximum of 210 mm, which may be 180 mm, and very particularly preferably 140 mm. The handle is in particular made at least partially of a plastic and/or a rubber material.
The interface device is preferably provided for detachably connecting the at least one rechargeable battery pack to the hand-held power tool. At least one fastening element is advantageously provided for mechanically connecting the at least one rechargeable battery pack to the hand-held power tool. At least one contact element is advantageously provided for electrically connecting the at least one rechargeable battery pack to the hand-held power tool. The at least one interface device preferably includes at least one interface situated on the at least one rechargeable battery pack, at least one interface situated on the hand-held power tool, and/or an exchange interface unit that is detachably coupleable to the at least one rechargeable battery pack and to the hand-held power tool. In the present context, a “rechargeable battery pack” is understood in particular to mean an energy store unit that is provided for being coupleably connected to the hand-held power tool. The rechargeable battery pack is preferably connected to the hand-held power tool via the at least one interface device.
In addition, the rechargeable battery pack is provided in particular for storing electrical energy and supplying at least one electric motor of the hand-held power tool with electrical energy. The at least one electric motor is preferably configured as an EC motor. The rechargeable battery pack in particular includes at least one energy store. The energy store includes at least one accumulator cell, and advantageously includes multiple interconnected accumulator cells. In addition, the rechargeable battery pack in particular includes a, which may be one, housing in which the energy store is situated and which is provided for protecting the energy store.
In the present context, a “damping unit” is understood in particular to mean a unit that is provided for greatly reducing a transmission of an oscillation, of impacts, and/or of a vibration, in particular of and in particular between various units, elements, components, and/or parts of the hand-held power tool. The term “greatly reducing” is understood to mean that the oscillation, the impacts, and/or the vibration that act(s) on a component of the hand-held power tool to be damped, in particular on the at least one handle, is/are reduced by at least 50%, which may be by more than 70%, and particularly preferably by more than 90%, in particular compared to an undamped configuration. A damping rate of oscillations, impacts, and/or vibrations of the at least one damping unit is advantageously settable, in particular by an operator. The at least one damping unit includes in particular at least one, which may be exactly one, and in particular multiple, elastic, damping, and/or resilient damping element(s) that greatly reduce(s) the oscillations, impacts, and/or vibrations acting on at least a portion of the hand-held power tool. The at least one damping element in particular is situated between two portions of the hand-held power tool that are to be damped relative to one another with the aid of the at least one damping unit. An “elastic element” is understood in particular to mean an element which is repeatedly deformable without the element thus being mechanically damaged or destroyed, and which, in particular after a deformation, tends to automatically return to its original shape. The at least one damping element may be configured as a mechanical, electrical, hydraulic, and/or pneumatic damping element. In particular, the at least one damping unit includes multiple damping elements having different configurations. The at least one damping element is preferably a toggle lever, a leaf spring, a compression spring, a foam part, and/or a rubber part.
In the present context, “provided” is understood in particular to mean specially configured, configured, and/or equipped. Providing an object for a certain function is understood in particular to mean that the object meets and/or carries out this certain function in at least one use state and/or operating state.
Moreover, it is provided that the at least one interface device includes at least one exchange interface unit that is configured to be detachably connectable to the at least one rechargeable battery pack and to the at least one handle, and/or to the at least one rechargeable battery pack and to the at least one housing. In this way, exchange interface units having different configurations may be coupled to the hand-held power tool, as the result of which the hand-held power tool may advantageously be easily retrofitted, for example, for different applications, in particular for connection to different rechargeable battery packs, for example for connection to an 18-V rechargeable battery pack and to a 36-V rechargeable battery pack.
In the present context, “detachable” is understood in particular to mean “nondestructively separable.” The exchange interface unit is preferably configured to be exchangeably connectable to the at least one rechargeable battery pack and to the at least one handle, and/or to the at least one rechargeable battery pack and to the at least one housing. The at least one interface device particularly preferably includes at least two exchange interface units, which may behaving at least partially different configurations, which are alternatively coupleable to the hand-held power tool. The at least one exchange interface unit is particularly preferably configured to be detachably connectable to the at least one rechargeable battery pack and to the at least one, in particular vibration-damped, handle. The exchange interface unit is preferably fastenable to the at least one handle and/or to the housing of the hand-held power tool with the aid of at least one fastening element. The at least one fastening element is preferably configured as a screw, clamping element, clip, or detent hook, or in some other way that appears meaningful to those skilled in the art. The at least one exchange interface unit is particularly preferably configured to be detachably connectable to the at least one rechargeable battery pack and to the at least one handle, and/or to the at least one rechargeable battery pack and to the at least one housing, without the use of tools. The at least one fastening element may be situated on the at least one handle or on the housing of the hand-held power tool and/or on the at least one rechargeable battery pack.
A hand-held power tool, in particular a drilling hammer and/or chisel hammer, that includes at least one housing, at least one handle, and at least one interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack is preferably conceivable, the at least one interface device including at least one exchange interface unit that is configured to be detachably connectable to the at least one rechargeable battery pack and to the at least one handle, and/or to the at least one rechargeable battery pack and to the at least one housing, which represents an alternative to the embodiment of the hand-held power tool described herein.
Furthermore, it is provided that the hand-held power tool includes at least one safety release unit for automatically releasing the fastening of the at least one exchange interface unit and/or of the at least one rechargeable battery pack when a limiting value of at least one safety parameter is exceeded. In particular, damage to the at least one rechargeable battery pack coupled to the hand-held power tool, for example if the hand-held power tool drops, may thus be avoided.
In the present context, “automatic” is understood in particular to mean an active intervention that is at least essentially, which may be completely, independent of the operator. In the present context, a “safety parameter” is understood in particular to mean a parameter that is relevant at least for avoiding damage to the hand-held power tool and/or to the rechargeable battery pack, or injury to the operator. The at least one safety parameter is preferably formed by a force that acts on the at least one rechargeable battery pack that is coupled to the hand-held power tool, and/or on the interface device. The limiting value of the at least one safety parameter is exceeded in particular if the hand-held power tool drops.
A hand-held power tool, in particular a drilling hammer and/or chisel hammer, that includes at least one housing, at least one handle, and at least one interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack, and that includes at least one safety release unit for automatically releasing the fastening of the at least one exchange interface unit and/or of the at least one rechargeable battery pack when a limiting value of at least one safety parameter is exceeded, is conceivable which represents an alternative to the embodiment of the hand-held power tool described herein.
In addition, it is provided that the hand-held power tool includes at least one rechargeable battery damping unit for supporting at least a portion of the at least one interface device in a vibration-damped manner. A preferably low transmission of impacts and vibrations to the at least one rechargeable battery pack in an operating state of the hand-held power tool may thus be achieved with a simple configuration, and damage to the at least one rechargeable battery pack, in particular wear, caused by the mechanical stress, on electrical contact elements and/or fastening elements for connecting the at least one rechargeable battery pack to the hand-held power tool may advantageously be avoided.
In the present context, a “rechargeable battery damping unit” is understood in particular to mean a unit that is provided for greatly reducing a transmission of an oscillation, of impacts, and/or of a vibration, in particular of and in particular between the hand-held power tool and the rechargeable battery pack that is coupled to the hand-held power tool. The term “greatly reducing” is understood to mean that the oscillation, the impacts, and/or the vibration that act(s) on the at least one rechargeable battery pack, in particular via the at least one interface device, is/are reduced by at least 50%, which may be by more than 70%, and particularly preferably by more than 90%, in particular compared to an undamped configuration.
The at least one rechargeable battery damping unit includes in particular at least one, which may be exactly one, and in particular multiple, elastic, damping, and/or resilient damping element(s) that greatly reduce(s) the oscillations, impacts, and/or vibrations. The at least one damping element is in particular situated between the hand-held power tool, in particular the at least one handle of the hand-held power tool, and the at least one interface device. An “elastic element” is understood in particular to mean an element which is repeatedly deformable without the element thus being mechanically damaged or destroyed, and which in particular after a deformation tends to automatically return to its original shape. The at least one damping element may be configured as a mechanical, electrical, hydraulic, and/or pneumatic damping element. The at least one damping element may be formed by a spring, an elastomeric, rubber, and/or foam element, a linear decoupling, or in some other way that appears meaningful to those skilled in the art.
In addition, it is provided that the hand-held power tool includes at least one rechargeable battery pack that is at least partially electrically and mechanically coupleable to the at least one interface device, a combined mass of the at least one handle and of the at least one rechargeable battery pack being at least ⅛ of a total hand-held power tool mass. A preferably good and balanced weight distribution of the hand-held power tool may thus be achieved due to situating the at least one interface device on the at least one handle.
The combined mass of the at least one rechargeable battery pack and of the at least one handle is in particular at least ¼, which may be at least ⅓, and particularly preferably ½ of the total hand-held power tool mass. The at least one handle and the at least one rechargeable battery pack may particularly preferably be provided as an absorption mass.
Furthermore, it is provided that the at least one interface device includes at least one auxiliary function unit that provides an auxiliary function in addition to the electrical and mechanical coupling to at least one rechargeable battery pack. A preferably broad application area and advantageously flexible usability of the hand-held power tool may thus be achieved.
The at least one auxiliary function unit is preferably configured, at least in part, to be fixedly connected to the at least one exchange interface unit. The at least one auxiliary function unit may be configured as an operating hours counter, as a mounting, for example for a lighting unit such as a flashlight, for at least one sensor and/or for a smart phone, as a suction unit, as a control unit, in particular as an HMI interface, as an illumination unit, as a measuring device, for example as a laser distance meter for depth measurement, or as a line laser, and/or in some other way that appears meaningful to those skilled in the art. It is also conceivable for the at least one interface device to include at least two auxiliary function units which have configurations that are at least partially different, and which in particular are alternatively coupleable to the hand-held power tool. It is conceivable for the at least one auxiliary function unit to be situatable on the housing, on the handle, on a housing cover, and/or at some other location on the hand-held power tool that appears meaningful to those skilled in the art. The at least one auxiliary function unit is particularly preferably situatable on the hand-held power tool in a vibration-damped manner. The hand-held power tool may thus be retrofitted, for example, for different applications, using a simple configuration.
In addition, it is provided that the hand-held power tool includes at least one absorption unit that is at least partially situated on the interface device. Good oscillation damping may advantageously be achieved in this way.
In the present context, an “absorption unit” is understood in particular to mean a unit which includes at least one absorption mass that is provided for generating, in an operating state of the hand-held power tool, a counter-oscillation with respect to the oscillations and vibrations generated by the hand-held power tool, and compensating for the oscillations and vibrations generated by the hand-held power tool. The at least one absorption unit preferably includes at least one absorption mass that is preferably formed, at least partially, by the at least one rechargeable battery pack and/or by the at least one handle.
Moreover, it is provided that the at least one safety release unit includes at least one release element having an at least partially elastic configuration. A cost-effective embodiment of the at least one safety release unit may thus be achieved with a simple configuration.
The term “elastic” is understood in particular to mean that the at least one release element is repeatedly deformable without the release element thus being mechanically damaged or destroyed, and that the at least one release element, in particular after a deformation, tends to automatically return to its original shape. The at least one release element may be configured, at least in part, as a spring, in particular as a leaf spring, as an elastic subarea on the housing of the hand-held power tool and/or the at least one exchange interface unit, as a wall thickness of the housing of the hand-held power tool that is reduced, at least in areas, as a predetermined breaking point on the housing of the hand-held power tool and/or on the at least one exchange interface unit, as a magnet, or in some other way that appears meaningful to those skilled in the art. Arbitrary combinations of release elements having different configurations, which appear meaningful to those skilled in the art, are also conceivable. The at least one release element in particular may be configured, at least in part, in one piece with at least one mechanical fastening element and/or with at least one electrical contact element.
Furthermore, it is provided that the hand-held power tool includes at least one adjustment unit for adjusting at least one damping parameter of the at least one damping unit. An advantageously high level of operator comfort and a preferred adaptation to different applications, to different operator preferences, and/or to the at least one rechargeable battery pack coupled to the hand-held power tool may be achieved in this way.
The at least one adjustment unit is provided in particular for adjusting at least one damping parameter of the at least one damping unit, which may be by the operator of the hand-held power tool. The at least one adjustment unit preferably includes at least one control element that is provided for actuation, in particular manual actuation, by the operator for adjusting the damping parameter. The damping parameter is preferably formed by a spring constant, a strength, a tension, and/or a pressure, in particular of the at least one damping element of the at least one damping unit. The at least one adjustment unit is provided for a mechanical or electronic adjustment.
In addition, an exchange interface unit for the hand-held power tool is provided. The hand-held power tool may thus be retrofitted in an advantageously easy manner, for example for different applications, in particular for connection to different rechargeable battery packs, for example for connection to an 18-V rechargeable battery pack and to a 36-V rechargeable battery pack, and/or for connection to different auxiliary function units.
The hand-held power tool according to the present invention is not intended to be limited to the use and specific embodiment described above. In particular, for meeting a mode of operation described herein, the hand-held power tool according to the present invention may include a number of individual elements, components, and units that differ from the number stated herein.
Further advantages result from the following description of the drawings. Multiple exemplary embodiments of the present invention are illustrated in the drawings. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also advantageously consider the features individually and combine them into further meaningful combinations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a hand-held power tool according to the present invention including an installed rechargeable battery pack, in a schematic side view.

FIG. 2 shows a detail of the hand-held power tool in the area of the installed rechargeable battery pack.

FIG. 3 shows an alternative embodiment of the hand-held power tool including an installed rechargeable battery pack, in a schematic side view.

FIG. 4 shows another alternative embodiment of the hand-held power tool including an installed rechargeable battery pack, in a schematic side view.

FIG. 5 shows another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 6 shows another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 7 shows another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 8 shows a detail of another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 9 shows a detail of another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 10 shows a detail of another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

FIG. 11 shows a detail of another alternative embodiment of the hand-held power tool including an interface device, in a schematic side view.

DETAILED DESCRIPTION

A hand-held power tool 10 a is schematically illustrated in FIG. 1. Hand-held power tool 10 a is configured as a hand-held electric power tool. Hand-held power tool 10 a is configured as a rechargeable battery hand-held power tool. Hand-held power tool 10 a is formed by a drilling hammer and/or chisel hammer. However, other embodiments of hand-held power tool 10 a that appear meaningful to those skilled in the art are also conceivable. Hand-held power tool 10 a includes a tool holder 36 a that is provided for accommodating an insertion tool. Tool holder 36 a is configured as a quick-change tool holder. Hand-held power tool 10 a also includes a handle 14 a for guiding hand-held power tool 10 a by an operator. Handle 14 a is situated on a side of hand-held power tool 10 a facing away from tool holder 36 a, viewed along a machining axis. Handle 14 a is configured as a U-shaped bow-type handle. It is also conceivable for hand-held power tool 10 a to additionally include an auxiliary handle, which may be configured as a bar-shaped handle, for example. Hand-held power tool 10 a includes a drive unit for driving, in an operating state, an insertion tool that is fastened in tool holder 36 a, and a housing 12 a. Housing 12 a is formed by two housing shells. However, other embodiments of housing 12 a that appear meaningful to those skilled in the art are also conceivable.
Hand-held power tool 10 a also includes a damping unit 20 a that is provided for supporting handle 14 a relative to housing 12 a in a vibration-damped manner. Damping unit 20 a includes at least one damping element 38 a that is situated, at least partially, between handle 14 a and housing 12 a of hand-held power tool 10 a. Damping unit 20 a includes one damping element 38 a. However, it is also conceivable for damping unit 20 a to include some other, arbitrary number of damping elements 38 a. Damping element 38 a is made of an elastomer and has an elastically deformable configuration. Damping element 38 a is made of rubber. Damping element 38 a is connected to housing 12 a and to handle 14 a. Handle 14 a is connected to housing 12 a via damping element 38 a. However, other embodiments of damping element 38 a that appear meaningful to those skilled in the art, for example made of foam, as a spring element, in particular as a leaf spring or as a coil compression spring, as a toggle lever, as a swivel joint, as a linear bearing, as a hydraulic element, or as any arbitrary combination, are also conceivable.
Hand-held power tool 10 a also includes at least one interface device 16 a for establishing an electrical and mechanical connection to the at least one rechargeable battery pack 18 a. Hand-held power tool 10 a includes one interface device 16 a that is provided for electrically and mechanically connecting a rechargeable battery pack 18 a to hand-held power tool 10 a. Hand-held power tool 10 a includes one interface device 16 a. However, it is also conceivable for hand-held power tool 10 a to include more than one interface device 16 a, and in particular for coupling hand-held power tool 10 a, to more than one rechargeable battery pack 18 a. Interface device 16 a is situated on handle 14 a. Interface device 16 a is provided for detachably connecting rechargeable battery pack 18 a to handle 14 a. Rechargeable battery pack 18 a is exchangeably connectable to hand-held power tool 10 a via interface device 16 a. Rechargeable battery pack 18 a, in a fastened state to hand-held power tool 10 a via interface device 16 a, is provided for supplying hand-held power tool 10 a with electrical energy.
Interface device 16 a includes at least one contact element, not illustrated, for electrically coupling hand-held power tool 10 a to rechargeable battery pack 18 a. Interface device 16 a includes two contact elements. However, some other number of contact elements is also conceivable. The contact elements of interface device 16 a have a configuration that corresponds to contact elements of rechargeable battery pack 18 a. The contact elements of interface device 16 a are made of metal. The contact elements are electrically connected to an electronics unit of hand-held power tool 10 a. Interface device 16 a also includes at least one coupling unit 40 a that is provided for mechanically coupling hand-held power tool 10 a to rechargeable battery pack 18 a. Interface device 16 a includes one coupling unit 40 a. However, multiple coupling units 40 a are also conceivable. Coupling unit 40 a includes at least one fastening element 42 a. Coupling unit 40 a includes two fastening elements 42 a. However, some other number of fastening elements 42 a is also conceivable. Fastening elements 42 a are provided for form-fit fastening to housing 12 a. Fastening elements 42 a are provided for form-fit fastening of rechargeable battery pack 18 a. Fastening elements 42 a each have a half-shell configuration. Fastening elements 42 a have a corresponding configuration. Fastening elements 42 a are connectable to one another via at least one screw. However, other embodiments of fastening elements 42 a that appear meaningful to those skilled in the art are also conceivable.
Hand-held power tool 10 a includes at least one rechargeable battery damping unit 26 a for supporting at least a portion of interface device 16 a in a vibration-damped manner. Hand-held power tool 10 a includes a rechargeable battery damping unit 26 a for supporting interface device 16 a in a vibration-damped manner. Rechargeable battery damping unit 26 a includes at least one rechargeable battery damping element 44 a. Rechargeable battery damping unit 26 a includes two rechargeable battery damping elements 44 a. However, some other number of rechargeable battery damping elements 44 a is also conceivable. Rechargeable battery damping elements 44 a in an installed state are each situated between handle 14 a of hand-held power tool 10 a and interface device 16 a. Rechargeable battery damping elements 44 a are each made of an elastomer. Rechargeable battery damping elements 44 a in an installed state rest directly against handle 14 a of hand-held power tool 10 a and against fastening elements 42 a of coupling unit 40 a of interface device 16 a. Rechargeable battery damping elements 44 a are fixedly connected to handle 14 a of hand-held power tool 10 a. Rechargeable battery damping elements 44 a are integrally joined to handle 14 a of hand-held power tool 10 a. Rechargeable battery damping elements 44 a are molded onto handle 14 a of hand-held power tool 10 a. However, it is also conceivable for rechargeable battery damping elements 44 a to be joined to handle 14 a in some other way that appears meaningful to those skilled in the art, such as by an adhesive bond.
For installing coupling unit 40 a, fastening elements 42 a are placed on handle 14 a around the side of rechargeable battery damping elements 44 a of rechargeable battery damping unit 26 a, viewed along a direction perpendicular to the machining axis of hand-held power tool 10 a, so that fastening elements 42 a in an installed state enclose rechargeable battery damping elements 44 a. For this purpose, fastening elements 42 a each have a receiving area that is provided for accommodating one of the rechargeable battery damping elements 44 a in a form-fit manner. Rechargeable battery damping elements 44 a each have a C-shaped cross section, and in an installed state enclose a projection that is molded onto handle 14 a. Fastening elements 42 a each have a C-shaped cross section, and in an installed state enclose rechargeable battery damping elements 44 a of rechargeable battery damping unit 26 a. Fastening elements 42 a are subsequently fixed by screwing to one another, and are thus fastened in a form-fit manner to handle 14 a via rechargeable battery damping elements 44 a. Alternatively, it is also conceivable for fastening elements 42 a to be integrally joined to one another, for example by an adhesive bond, or by a detent and/or plug-in connection, or in some other way that appears meaningful to those skilled in the art. For fastening rechargeable battery pack 18 a to hand-held power tool 10 a, fastening elements 42 a of coupling unit 40 a each include a projection 46 a, which in an installed state engages in a form-fit manner with a recess that is introduced into rechargeable battery pack 18 a. Fastening elements 42 a engage with the recesses at opposite sides of rechargeable battery pack 18 a.
In an installed state, rechargeable battery pack 18 a is supported relative to handle 14 a in a vibration-damped manner via rechargeable battery damping unit 26 a. In addition, rechargeable battery pack 18 a in an installed state is supported relative to housing 12 a of hand-held power tool 10 a in a vibration-damped manner via damping unit 20 a. In an operating state of hand-held power tool 10 a, a transmission of oscillations and vibrations from hand-held power tool 10 a to rechargeable battery pack 18 a is thus largely avoided. A combined mass of rechargeable battery pack 18 a and of handle 14 a is at least ⅛ of a total hand-held power tool mass. The combined mass of rechargeable battery pack 18 a and of handle 14 a is at least ¼ of a total hand-held power tool mass. The combined mass of rechargeable battery pack 18 a and of handle 14 a is at least ⅓ of a total hand-held power tool mass. The combined mass of rechargeable battery pack 18 a and of handle 14 a is ½ of a total hand-held power tool mass.
Further exemplary embodiments of the present invention are shown in FIGS. 3 through 11. The following descriptions and the drawings are limited essentially to the differences between the exemplary embodiments, whereby in principle, with regard to identically denoted components, in particular with regard to components having identical reference numerals, reference may also be made to the drawings and/or the description of the other exemplary embodiments, in particular in FIGS. 1 and 2. To distinguish between the exemplary embodiments, the letter a is added as a suffix to the reference numerals in the exemplary embodiment in FIGS. 1 and 2. The letter a is replaced by the letters b through j in the exemplary embodiments in FIGS. 3 through 11.
FIG. 3 shows one alternative embodiment of hand-held power tool 10 b, including a rechargeable battery pack 18 b that is installed via an interface device 16 b having an alternative embodiment. Rechargeable battery pack 18 b corresponds in large part to rechargeable battery pack 18 a already described. Hand-held power tool 10 b corresponds in large part to hand-held power tool 10 a already described. Hand-held power tool 10 b includes a handle 14 b for guiding hand-held power tool 10 b by an operator. Handle 14 b is configured as a U-shaped bow-type handle. Handle 14 b is supported on two areas of a housing 12 b of hand-held power tool 10 b. Hand-held power tool 10 b also includes a damping unit 20 b that is provided for supporting handle 14 b relative to housing 12 b in a vibration-damped manner. Damping unit 20 b includes at least one damping element 38 b that is situated, at least partially, between handle 14 b and housing 12 b of hand-held power tool 10 b. Damping unit 20 b includes two damping elements 38 b. However, it is also conceivable for damping unit 20 b to include some other, arbitrary number of damping elements 38 b. One of damping elements 38 b is formed by a leaf spring, and the other of damping elements 38 b is configured as a toggle lever. Damping elements 38 b are schematically illustrated, and may also have a different configuration that appears meaningful to those skilled in the art, for example made of an elastomer, in particular of rubber, of foam, or configured as a spring element, in particular as a coil spring, as a swivel joint, as a linear bearing, as a hydraulic element, or as any arbitrary combination. Damping elements 38 b are connected to housing 12 b and to handle 14 b. Handle 14 b is connected to housing 12 b via damping elements 38 b.
Hand-held power tool 10 b includes interface device 16 b, which corresponds to interface device 16 a already described. Interface device 16 b is situated on handle 14 b. Interface device 16 b is provided for detachably connecting rechargeable battery pack 18 b to handle 14 b. Rechargeable battery pack 18 b is exchangeably connectable to hand-held power tool 10 b via interface device 16 b. Interface device 16 b includes two contact elements, not illustrated, for electrically coupling hand-held power tool 10 b to rechargeable battery pack 18 b. The contact elements of interface device 16 b have a configuration that corresponds to contact elements of rechargeable battery pack 18 b. Interface device 16 b is provided for movably supporting rechargeable battery pack 18 b on handle 14 b. Interface device 16 b includes a linear bearing for displaceably supporting rechargeable battery pack 18 b on handle 14 b. Hand-held power tool 10 b also includes at least one absorption unit 30 b that is at least partially situated on interface device 16 b. Hand-held power tool 10 b includes one absorption unit 30 b. However, hand-held power tool 10 b may also include multiple absorption units 30 b. Absorption unit 30 b is provided for absorption of vibrations by at least one movably situated absorption mass. Rechargeable battery pack 18 b in an installed state forms the absorption mass.
FIG. 4 shows another alternative embodiment of hand-held power tool 10 c, including a rechargeable battery pack 18 c that is installed via an interface device 16 c having another alternative embodiment. Hand-held power tool 10 c and rechargeable battery pack 18 c correspond in large part to hand-held power tool 10 a already described, and of rechargeable battery pack 18 a already described. Hand-held power tool 10 c includes a handle 14 c for guiding hand-held power tool 10 c by an operator. In addition, hand-held power tool 10 c includes interface device 16 c that is provided for mechanically and electrically coupling rechargeable battery pack 18 c to hand-held power tool 10 c. Interface device 16 c is situated on handle 14 c. Interface device 16 c includes an intermediate housing 48 c that is situated between handle 14 c and a housing 12 c of hand-held power tool 10 c. Handle 14 c is coupled to housing 12 c of hand-held power tool 10 c, on the one hand via a damping element 38 c of a damping unit 20 c, and on the other hand via a rechargeable battery damping unit 26 c and intermediate housing 48 c of interface device 16 c.
Damping element 38 c of damping unit 20 c is made of an elastomer and is elastically deformable. Damping element 38 c is fixedly connected to housing 12 c of hand-held power tool 10 c and to handle 14 c. Damping element 38 c is integrally joined to housing 12 c of hand-held power tool 10 c and to handle 14 c. Rechargeable battery damping unit 26 c includes two rechargeable battery damping elements 44 c. However, it is also conceivable for rechargeable battery damping unit 26 c to have some other, arbitrary number of rechargeable battery damping elements 44 c. Rechargeable battery damping elements 44 c are made of an elastomer. One of rechargeable battery damping elements 44 c is situated between handle 14 c and intermediate housing 48 c, and the other of rechargeable battery damping elements 44 c is situated between intermediate housing 48 c and housing 12 c of hand-held power tool 10 c. Intermediate housing 48 c is fixedly connected to handle 14 c and to housing 12 c of hand-held power tool 10 c via rechargeable battery damping unit 26 c. Intermediate housing 48 c is integrally joined to handle 14 c via rechargeable battery damping unit 26 c and to housing 12 c of hand-held power tool 10 c. Intermediate housing 48 c forms an interface for detachably and exchangeably fastening rechargeable battery pack 18 c. Intermediate housing 48 c is made of plastic.
Hand-held power tool 10 c also includes at least one adjustment unit 34 c for adjusting at least one damping parameter of damping unit 20 c. Hand-held power tool 10 c includes one adjustment unit 34 c. However, it is also conceivable for hand-held power tool 10 c to include some other, arbitrary number of adjustment units 34 c. Adjustment unit 34 c is provided for adjusting the damping parameter by the operator of hand-held power tool 10 c. Adjustment unit 34 c includes at least one control element that is provided for being actuated by the operator for adjusting the damping parameter. Adjustment unit 34 c includes one control element. However, multiple control elements are also conceivable. The control element of adjustment unit 34 c is formed by a rotary knob. However, other embodiments of the control element that appear meaningful to those skilled in the art, such as a configuration as a slider, as a keypad, or as a touchpad, are also conceivable. Adjustment unit 34 c is provided for mechanically adjusting the damping parameter. However, it is also conceivable for adjustment unit 34 c to be provided for electronically adjusting the damping parameter, for example via an electronics unit of hand-held power tool 10 c.
FIG. 5 shows another alternative embodiment of hand-held power tool 10 d. Hand-held power tool 10 d corresponds in large part to hand-held power tool 10 a already described. Hand-held power tool 10 d includes an interface device 16 d that is provided for establishing an electrical and mechanical connection to a rechargeable battery pack 18 d. Interface device 16 d includes at least one exchange interface unit 22 d that is configured to be detachably connectable to rechargeable battery pack 18 d and to a handle 14 d of hand-held power tool 10 d, and/or to rechargeable battery pack 18 d and to a housing 12 d of hand-held power tool 10 d. Interface device 16 d includes one exchange interface unit 22 d that is configured to be detachably connectable to rechargeable battery pack 18 d and to a housing 12 d of hand-held power tool 10 d. However, interface device 16 d may also include some other number of exchange interface units 22 d that appears meaningful to those skilled in the art. Exchange interface unit 22 d is provided for electrically and mechanically coupling rechargeable battery pack 18 d to hand-held power tool 10 d. Exchange interface unit 22 d is exchangeably fastened to housing 12 d of hand-held power tool 10 d.
Exchange interface unit 22 d includes at least one contact element, not illustrated, for electrically contacting at least one corresponding contact element of hand-held power tool 10 d. Exchange interface unit 22 d includes two contact elements for electrically contacting two contact elements of hand-held power tool 10 d. However, some other number of contact elements is also conceivable. The contact elements of hand-held power tool 10 d and the contact elements of exchange interface unit 22 d are made of metal. Exchange interface unit 22 d includes at least one further contact element, likewise not illustrated, for electrically contacting at least one corresponding contact element of rechargeable battery pack 18 d. Exchange interface unit 22 d includes two further contact elements for electrically contacting two contact elements of rechargeable battery pack 18 d. However, some other number of contact elements is also conceivable. The contact elements of rechargeable battery pack 18 d and the further contact elements of exchange interface unit 22 d are made of metal. In an installed state, exchange interface unit 22 d electrically connects hand-held power tool 10 d to rechargeable battery pack 18 d.
Interface device 16 d also includes at least one coupling unit 40 d that is provided for mechanically coupling exchange interface unit 22 d to hand-held power tool 10 d, and/or exchange interface unit 22 d to rechargeable battery pack 18 d. Interface device 16 d includes one coupling unit 40 d. However, multiple coupling units 40 d are also conceivable. Coupling unit 40 d is provided for detachably fastening exchange interface unit 22 d to hand-held power tool 10 d, and/or exchange interface unit 22 d to rechargeable battery pack 18 d. Coupling unit 40 d includes at least one fastening element 42 d. Coupling unit 40 d includes two fastening elements 42 d for mechanically fastening exchange interface unit 22 d to housing 12 d of hand-held power tool 10 d. However, a different number of fastening elements 42 d is also conceivable. Fastening elements 42 d are each configured as a screw. In an installed state of exchange interface unit 22 d, fastening elements 42 d configured as screws each extend through a recess that is introduced into exchange interface unit 22 d, and are each screwed into a thread provided on housing 12 d of hand-held power tool 10 d. A head area of fastening elements 42 d configured as screws in each case rests against exchange interface unit 22 d on a side facing away from housing 12 d of hand-held power tool 10 d, and thus prevents exchange interface unit 22 d from slipping out of place relative to housing 12 d of hand-held power tool 10 d.
In an installed state of exchange interface unit 22 d, rechargeable battery pack 18 d may be mounted on exchange interface unit 22 d. For mounting rechargeable battery pack 18 d on exchange interface unit 22 d, rechargeable battery pack 18 d is coupled to at least one further fastening element, not illustrated, of coupling unit 40 d that is situated on exchange interface unit 22 d. The at least one further fastening element may be formed by a track, a detent element, a screw element, and/or in some other way that appears meaningful to those skilled in the art.
Interface device 16 d also includes at least one auxiliary function unit 28 d that provides an auxiliary function in addition to the electrical and mechanical coupling to rechargeable battery pack 18 d. Interface device 16 d includes one auxiliary function unit 28 d. However, it is also conceivable for interface device 16 d to include multiple auxiliary function units 28 d which in particular have different configurations.
Auxiliary function unit 28 d is configured as an operating hours counter. Alternatively or additionally, auxiliary function unit 28 d may be configured as a mounting, for example for a lighting unit, in particular for a flashlight, as a suction unit, as a control unit, in particular as an HMI interface, and/or in some other way that appears meaningful to those skilled in the art. Auxiliary function unit 28 d is electrically and mechanically connectable to hand-held power tool 10 d via exchange interface unit 22 d.
Exchange interface unit 22 d may be replaced by some other exchange interface unit, not illustrated, which likewise corresponds to the contact elements of hand-held power tool 10 d. Exchange interface unit 22 d and the other exchange interface unit correspond to one another in large part. Exchange interface unit 22 d and the other exchange interface unit are provided for corresponding to different rechargeable battery packs 18 d. Hand-held power tool 10 d may thus be easily retrofitted for coupling to different rechargeable battery packs 18 d. Alternatively or additionally, auxiliary function unit 28 d may be exchanged along with exchange interface unit 22 d, so that hand-held power tool 10 d may be easily retrofitted for different applications.
FIG. 6 shows a hand-held power tool 10 e already described, and illustrated in FIG. 5, including an interface device 16 e having an alternative embodiment. Interface device 16 e includes an exchange interface unit 22 e that is configured to be detachably connectable to a rechargeable battery pack 18 e and to a housing 12 e of hand-held power tool 10 e. Exchange interface unit 22 e is provided for electrically and mechanically coupling rechargeable battery pack 18 e to hand-held power tool 10 e. Exchange interface unit 22 e is exchangeably fastenable to housing 12 e of hand-held power tool 10 e. Interface device 16 e differs from interface device 16 d, already described, solely in the fastening of exchange interface unit 22 e to housing 12 e of hand-held power tool 10 e.
Interface device 16 e includes a coupling unit 40 e that is provided for mechanically coupling exchange interface unit 22 e to hand-held power tool 10 e. Coupling unit 40 e is provided for detachably fastening exchange interface unit 22 e to hand-held power tool 10 e, and exchange interface unit 22 e to rechargeable battery pack 18 e. Coupling unit 40 e includes two fastening elements 42 e′, 42 e″ for mechanically fastening exchange interface unit 22 e to housing 12 e of hand-held power tool 10 e. However, a different number of fastening elements 42 e is also conceivable. One of fastening elements 42 e′ is configured as a screw. In an installed state of exchange interface unit 22 e, fastening element 42 e′ configured as a screw extends through a recess that is introduced into exchange interface unit 22 e, and is screwed into a thread that is provided on housing 12 e of hand-held power tool 10 e. A head area of fastening element 42 e′ configured as a screw rests against exchange interface unit 22 e on a side facing away from housing 12 e of hand-held power tool 10 e, and thus prevents exchange interface unit 22 e from slipping out of place relative to housing 12 e of hand-held power tool 10 e. The other of fastening elements 42 e″ is formed by a projection that is situated on exchange interface unit 22 e, and which in an installed state of exchange interface unit 22 e engages with a hook element 50 e, having a corresponding configuration, situated on housing 12 e of hand-held power tool 10 e. For installation, in a first step, fastening element 42 e″ which is configured as a projection is suspended in hook element 50 e situated on housing 12 e of hand-held power tool 10 e.
Exchange interface unit 22 e is subsequently fixed to housing 12 e of hand-held power tool 10 e via fastening element 42 e′ configured as a screw.
FIG. 7 shows a hand-held power tool 10 f already described, and illustrated in FIG. 5, including a further interface device 16 f having an alternative embodiment. Interface device 16 f differs from interface device 16 d, already described, solely in the fastening of an exchange interface unit 22 f to a housing 12 f of hand-held power tool 10 f. Interface device 16 f includes a coupling unit 40 f that is provided for mechanically coupling exchange interface unit 22 f to hand-held power tool 10 f. Coupling unit 40 f is provided for detachably fastening exchange interface unit 22 f to hand-held power tool 10 f. Coupling unit 40 f includes two fastening elements 42 f′, 42 f″ for mechanically fastening exchange interface unit 22 f to housing 12 f of hand-held power tool 10 f. However, a different number of fastening elements 42 f is also conceivable. Fastening elements 42 f′, 42 f″ of coupling unit 40 f are formed by corresponding tracks. One of fastening elements 42 f′ is situated on exchange interface unit 22 f, and the other of fastening elements 42 f″ is situated on housing 12 f of hand-held power tool 10 f. For installing exchange interface unit 22 f on housing 12 f of hand-held power tool 10 f, exchange interface unit 22 f is shifted relative to housing 12 f of hand-held power tool 10 f, along a machining axis, corresponding fastening elements 42 f′, 42 f″ being engaged in a form-fit manner and moved relative to one another until reaching an end position. Coupling unit 40 f includes a stop, not illustrated, that is provided for delimiting the relative movement of exchange interface unit 22 f relative to housing 12 f of hand-held power tool 10 f and for fixing the end position.
FIG. 8 shows a detail of a hand-held power tool 10 g already described, and illustrated in FIG. 5, including a further interface device 16 g having an alternative embodiment. Interface device 16 g differs from interface device 16 d, already described, solely in the fastening of an exchange interface unit 22 g to a housing 12 g of hand-held power tool 10 g. Interface device 16 g includes a coupling unit 40 g that is provided for mechanically coupling and detachably fastening exchange interface unit 22 g to hand-held power tool 10 g. Coupling unit 40 g includes at least one fastening element 42 g. Coupling unit 40 g includes two fastening elements 42 g. However, a different number of fastening elements 42 g is also conceivable. Fastening elements 42 g each have a half-shell configuration. Fastening elements 42 g are each fastened via a screw to housing 12 g of hand-held power tool 10 g. In an installed state, each of the screws engages through a recess that is introduced into each of fastening elements 42 g, and is screwed into a thread in housing 12 g of hand-held power tool 10 g. Fastening elements 42 g each include a projection 46 g that is provided for fastening rechargeable battery pack 18 g in a form-fit manner. In an installed state of rechargeable battery pack 18 g, projections 46 g of fastening elements 42 g engage with corresponding recesses that are introduced into housing 12 g of rechargeable battery pack 18 g, and fix rechargeable battery pack 18 g relative to exchange interface unit 22 g in a form-fit manner. However, other embodiments of coupling unit 40 g and in particular of fastening elements 42 g, in particular with regard to a number and/or configuration of projections 46 g or recesses, that appear meaningful to those skilled in the art are also conceivable. Exchange interface unit 22 g also includes a contact unit for electrically connecting rechargeable battery pack 18 g to hand-held power tool 10 g in an installed state. The contact unit has a configuration that is known to those skilled in the art, and is not shown here in greater detail.
FIG. 9 shows a detail of a hand-held power tool 10 h already described, and illustrated in FIG. 5, including a further interface device 16 h having an alternative embodiment. Interface device 16 h differs from interface device 16 d, already described, solely in the fastening of an exchange interface unit 22 h to a housing 12 h of hand-held power tool 10 h. Exchange interface unit 22 h is provided for electrically and mechanically connecting a rechargeable battery pack 18 h to hand-held power tool 10 h. Hand-held power tool 10 h includes at least one safety release unit 24 h for automatically releasing the fastening of exchange interface unit 22 h and/or of rechargeable battery pack 18 h when a limiting value of at least one safety parameter is exceeded. Hand-held power tool 10 h includes one safety release unit 24 h. However, it is also conceivable for hand-held power tool 10 h to include multiple safety release units 24 h. Safety release unit 24 h is provided for automatically releasing the fastening of exchange interface unit 22 h to housing 12 h of hand-held power tool 10 h, for example if hand-held power tool 10 h drops. The safety parameter is formed by a force that acts on the fastening of exchange interface unit 22 h to housing 12 h of hand-held power tool 10 h. However, other embodiments of the safety parameter that appear meaningful to those skilled in the art are also conceivable. Safety release unit 24 h includes at least one release element 32 h that has an at least partially elastic configuration. Safety release unit 24 h includes one release element 32 h. However, safety release unit 24 h may also include multiple release elements 32 h. Release element 32 h is formed by a spring. Release element 32 h is formed by a leaf spring. Release element 32 h also forms a contact element for electrically connecting hand-held power tool 10 h to rechargeable battery pack 18 h. Release element 32 h is situated on housing 12 h of hand-held power tool 10 h. However, it is also conceivable for release element 32 h to be situated on exchange interface unit 22 h.
Interface device 16 h includes a coupling unit 40 h that is provided for mechanically coupling exchange interface unit 22 h to hand-held power tool 10 h. Coupling unit 40 h is provided for detachably fastening exchange interface unit 22 h to hand-held power tool 10 h, and exchange interface unit 22 h to rechargeable battery pack 18 h. Coupling unit 40 h includes two fastening elements 42 h′, 42 h″ for mechanically fastening exchange interface unit 22 h to housing 12 h of hand-held power tool 10 h. However, a different number of fastening elements 42 h is also conceivable. One of fastening elements 42 h′ is formed by a projection which is situated on exchange interface unit 22 h, and which in an installed state of exchange interface unit 22 h engages with a hook element 50 h, having a corresponding configuration, situated on housing 12 h of hand-held power tool 10 h. The other of fastening elements 42 h″ is formed by release element 32 h.
For installation, in a first step, fastening element 42 h′ configured as a projection is suspended in hook element 50 h situated on housing 12 h of hand-held power tool 10 h. Exchange interface unit 22 h is subsequently swiveled until exchange interface unit 22 h rests against fastening element 42 h″ that is formed by release element 32 h. Exchange interface unit 22 h is pressed against fastening element 42 h″ formed by release element 32 h, until fastening element 42 h″ formed by release element 32 h locks into a corresponding recess situated on exchange interface unit 22 h. In the installed state, exchange interface unit 22 h is secured against swiveling back, and thus secured relative to housing 12 h of hand-held power tool 10 h, by an elastic force of fastening element 42 h″ that is formed by release element 32 h. Rechargeable battery pack 18 h is fastened to exchange interface unit 22 h in a manner already described. If hand-held power tool 10 h drops, fastening element 42 h″ that is formed by release element 32 h automatically detaches from the corresponding recess in exchange interface unit 22 h, as the result of which rechargeable battery pack 18 h that is coupled to exchange interface unit 22 h is separated from hand-held power tool 10 h, which is thus intended to prevent damage to rechargeable battery pack 18 h.
FIG. 10 shows a detail of a hand-held power tool 10 i already described, and illustrated in FIG. 5, including a further interface device 16 i having an alternative embodiment. Interface device 16 i differs from interface device 16 d, already described, solely in the fastening of an exchange interface unit 22 i to a housing 12 i of hand-held power tool 10 i. Exchange interface unit 22 i is provided for electrically and mechanically connecting a rechargeable battery pack 18 i to hand-held power tool 10 i. Hand-held power tool 10 i includes at least one safety release unit 24 i for automatically releasing the fastening of exchange interface unit 22 i and/or of rechargeable battery pack 18 i when a limiting value of at least one safety parameter is exceeded. Safety release unit 24 i is provided for automatically releasing the fastening of exchange interface unit 22 i on housing 12 i of hand-held power tool 10 i, for example if hand-held power tool 10 i drops. Safety release unit 24 i includes at least one release element 32 i that has an at least partially elastic configuration. Safety release unit 24 i includes two release elements 32 i. Release elements 32 i are situated on housing 12 i of hand-held power tool 10 i. However, it is also conceivable for release element 32 i to be situated on exchange interface unit 22 i. Release elements 32 i are fixedly connected to housing 12 i of hand-held power tool 10 i. Release elements 32 i are integrally joined to housing 12 i of hand-held power tool 10 i. Release elements 32 i have a one-piece configuration with housing 12 i of hand-held power tool 10 i.
Interface device 16 i includes a coupling unit 40 i that is provided for mechanically coupling exchange interface unit 22 i to hand-held power tool 10 i. Coupling unit 40 i is provided for detachably fastening exchange interface unit 22 i to hand-held power tool 10 i. Coupling unit 40 i includes two fastening elements 42 i for mechanically fastening exchange interface unit 22 i to housing 12 i of hand-held power tool 10 i. Fastening elements 42 i each have a hook-shaped configuration. Fastening elements 42 i are fixedly connected to housing 12 i of hand-held power tool 10 i. Fastening elements 42 i are integrally joined to housing 12 i of hand-held power tool 10 i. Fastening elements 42 i have a one-piece configuration with housing 12 i of hand-held power tool 10 i.
Fastening elements 42 i and release elements 32 i have a one-piece configuration. Release elements 32 i are formed by an area of housing 12 i of hand-held power tool 10 i having a reduced material thickness. Hook-shaped fastening elements 42 i thus have a configuration that is elastically deflectable for installation and for automatically releasing exchange interface unit 22 i.
FIG. 11 illustrates release elements 32 j that are formed not from an area of a housing 12 j of a hand-held power tool 10 j having a reduced material thickness, but, rather, from an elastically deformable material that is integrally joined to housing 12 j of hand-held power tool 10 j and to fastening elements 42 j. Release elements 32 j are made of an elastomer. Release elements 32 j are configured as a PTE bridge. Release elements 32 j are injection-molded onto housing 12 j of hand-held power tool 10 j and onto each of fastening elements 42 j. Release elements 32 j connect each of fastening elements 42 j to housing 12 j of hand-held power tool 10 j.

Claims

1-10. (canceled)

11. A hand-held power tool, comprising:

at least one housing;

at least one handle;

at least one interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack; and

at least one damping unit for supporting the at least one handle relative to the at least one housing in a vibration-damped manner, the at least one interface device being situated on the at least one handle.

12. The hand-held power tool of claim 11, wherein the at least one interface device includes at least one exchange interface unit configured to be detachably connectable to the at least one rechargeable battery pack and to the at least one handle, and/or to the at least one rechargeable battery pack and to the at least one housing.

13. The hand-held power tool of claim 11, further comprising:

at least one safety release unit for automatically releasing the fastening of the at least one exchange interface unit and/or of the at least one rechargeable battery pack when a limiting value of at least one safety parameter is exceeded.

14. The hand-held power tool of claim 11, further comprising:

at least one rechargeable battery damping unit for supporting at least a portion of the at least one interface device in a vibration-damped manner.

15. The hand-held power tool of claim 11, further comprising:

at least one rechargeable battery pack that is at least partially electrically and mechanically coupleable to the at least one interface device, a combined mass of the at least one handle and of the at least one rechargeable battery pack being at least ⅛ of a total hand-held power tool mass.

16. The hand-held power tool of claim 11, wherein the at least one interface device includes at least one auxiliary function unit which provides an auxiliary function in addition to the electrical and mechanical coupling to at least one rechargeable battery pack.

17. The hand-held power tool of claim 11, further comprising:

at least one absorption unit that is at least partially situated on the interface device.

18. The hand-held power tool of claim 13, wherein the at least one safety release unit includes at least one release element having an at least partially elastic design.

19. The hand-held power tool of claim 11, further comprising:

at least one adjustment unit for adjusting at least one damping parameter of the at least one damping unit.

20. An exchange interface unit for a hand-held power tool, comprising:

an exchange interface device for establishing an electrical and mechanical connection to at least one rechargeable battery pack of the hand-held power tool;

wherein the hand-held power tool includes:

at least one housing;

at least one handle;

the exchange interface device for establishing the electrical and mechanical connection to the at least one rechargeable battery pack; and

at least one damping unit for supporting the at least one handle relative to the at least one housing in a vibration-damped manner, the exchange interface device being situated on the at least one handle.

21. The hand-held power tool of claim 11, wherein the hand-held power tool includes a drilling hammer and/or chisel hammer.