EP3393724A1 - Portable power tool - Google Patents
Portable power toolInfo
- Publication number
- EP3393724A1 EP3393724A1 EP16815766.7A EP16815766A EP3393724A1 EP 3393724 A1 EP3393724 A1 EP 3393724A1 EP 16815766 A EP16815766 A EP 16815766A EP 3393724 A1 EP3393724 A1 EP 3393724A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery pack
- unit
- damping
- handle
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
- B25B21/023—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket for imparting an axial impact, e.g. for self-tapping screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/04—Handles; Handle mountings
- B25D17/043—Handles resiliently mounted relative to the hammer housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/006—Vibration damping means
Definitions
- cordless hammer which comprises a battery pack with a rated voltage of 18 V, a damped handle, a SDS-Max quick change tool holder and a striking mechanism, which converts a provided by the battery pack electrical energy into a impact energy of 4.5 J. ,
- the invention relates to a hand tool, in particular a drill and / or chipping hammer, with at least one housing, with at least one handle, which is arranged on the housing, with at least one, advantageously exactly one, battery pack, which, in particular apart from production - and / or operational fluctuations, a rated voltage of more than 28 V, in particular at least 36 V and advantageously exactly 36 V, and with at least one Dämp- tion unit, the vibration-damped storage at least the handle and / or the battery pack, in particular relatively to the housing, is provided.
- the hand tool machine comprises a percussion mechanism which is intended to provide an electrical energy provided by the battery pack, in particular apart from production and / or operational reasons
- a "hand tool machine” is to be understood as meaning, in particular, a workpiece-processing machine that can be transported without transport machine by a user, in particular a drilling machine, a hammer drill, a chisel hammer, a percussion drill, a saw, such as a machine tool Jigsaw or a saber saw, a planer, a screwdriver, a milling cutter, a grinder, an angle grinder, a sander, a gardening tool and / or a multi-function tool, understood.
- the power tool has a mass which is in particular less than 40 kg, preferably less than 10 kg and more preferably less than 5 kg.
- the housing of the handheld power tool preferably comprises at least two housing shells and in an assembled state forms at least partially, preferably at least in large part, a lateral surface of the handheld power tool that can be grasped by an operator of the handheld power tool.
- the at least one housing of the power tool is in particular at least partially formed from plastic.
- a "handle" should be understood to mean, in particular, an element which is provided for holding and / or guiding the hand tool
- the handle is graspable and / or durable, at least with one hand, and has, in particular, at least one operating element Control of a
- the operating element can be designed, for example, as an on / off switch, as an automatic shut-off protection and / or as a dosing regulator for metering a striking energy.
- he handle is intended to be completely encompassed by a particular adult operator with one hand.
- a dosing regulator for metering a striking energy.
- Circumference of the handle in particular at least 70 mm, preferably at least 90 mm and particularly preferably at least 110 mm and / or in particular at most 210 mm, preferably at most 180 mm and particularly preferably at most 140 mm.
- the handle is in particular at least partially formed from a plastic and / or a rubber material.
- a “battery pack” should in particular be understood to mean an energy storage unit which is intended to be coupled to the handheld power tool.
- the battery pack is preferably connected to an interface unit of the handheld power tool
- the battery pack is also intended in particular to store electrical energy
- the battery pack has in particular at least one energy store
- the energy store comprises at least one, advantageously exactly one, accumulator and preferably several more in particular
- the accumulators can advantageously be connected at least partially in series and / or in parallel in order to obtain a desired voltage and / or capacitance.
- a weight of the handle and the battery pack together is a minimum of 1/10 and a maximum of 1/2 of the total weight of the power tool.
- the handheld power tool has the interface unit.
- the interface unit is preferably provided for releasably connecting the at least one battery pack to the handheld power tool.
- at least one fastener is provided for the mechanical connection of the at least one battery pack with the power tool.
- at least one contact element is provided for the electrical connection of the at least one battery pack with the power tool.
- a “damping unit” is to be understood as a unit which is intended to significantly reduce a transmission of vibration and / or vibration, in particular of and in particular between different units, elements, components and / or components of the handheld power tool. should be understood that the vibration and / or vibration, which acts on a component to be damped the hand tool, at least
- a degree of damping of the damping unit for damping vibrations and / or vibrations in particular by an operator preferably by setting a damping characteristic, such as an elasticity, a spring constant, a stiffness, a voltage and / or pressure, in particular at least one damping element adjustable , Under a "damping characteristic
- a parameter is to be understood which is in particular associated with the damping, in particular at least one unit, an element, a component and / or a component of the handheld power tool and advantageously a damping between two units, elements, components and / or components of the handheld power tool
- the damping unit can conclude a presence and / or a quality of the damping at least on the basis of the damping characteristic and / or determine the presence and / or the quality of the damping
- the damping characteristic corresponds to at least one, advantageously exactly one, the Damping imaging and / or characterizing measured value.
- the damping unit has, in particular, at least one, preferably exactly one, and in particular a plurality of elastic, damping and / or resilient damping elements, which clearly show an oscillation and / or vibration acting on at least one unit, an element, a component and / or a component of the handheld power tool reduced.
- the at least one damping element is arranged, in particular between two units, elements, components and / or components of the power tool, which are to be damped relative to each other by means of the damping unit.
- an "elastic element” is to be understood as meaning, in particular, an element which can be repeatedly deformed without mechanically damaging or destroying the element, and which, in particular, autonomously strives again for a basic shape after deformation 20 ° C advantageously a modulus of elasticity in particular of at least 0.5 kN / mm 2 , preferably of at least 1 kN / mm 2 and more preferably of at least 2 kN / mm 2 and / or in particular of at most 20 kN / mm 2 , preferably of maximum 10 kN / mm 2 and particularly preferably not more than 5 kN / mm 2.
- the damping element may be designed as a mechanical, electrical, hydraulic and / or pneumatic damping element Damping a rocker arm, a leaf spring, a compression spring, a
- the damping unit converts in particular at least partially a mechanical energy of the vibration and / or vibration in a further form of energy, such as heat.
- the damping unit is provided to at least partially convert the mechanical energy of the vibration and / or vibration into electrical energy and in particular to supply it to the battery pack for energy recovery.
- the damping Fung unit in particular at least one actuator element, such as a linear generator and / or a piezoelectric element on.
- the damping unit can be provided, in particular, to at least partially compensate for a vibration and / or a vibration, preferably by means of an absorber mass, which in particular forms the battery pack.
- the absorber mass is in particular intended to generate an oscillation and / or vibration opposite to a vibration and / or vibration of a unit, an element, a component and / or a component of the handheld power tool in order in this way to transmit at least one oscillation and / or to reduce vibration to a further unit, a further element, a further component and / or a further component of the portable power tool.
- the hand tool has in particular for adjusting the damping characteristic on a setting.
- the setting unit is provided in particular for setting at least one damping characteristic of the damping unit, preferably by the operator of the handheld power tool.
- the setting unit preferably has at least one operating element which is provided for actuation by the operator for setting the damping characteristic.
- the impact mechanism is designed in particular as a spring impact mechanism and / or as a pneumatic striking mechanism.
- the percussion mechanism has in particular at least one drive shaft, which is non-rotatably connected to the drive unit of the portable power tool, and a piston, a racket and / or a firing pin.
- the battery pack is arranged on and / or at least partially in the handle.
- the battery pack is in particular by means of
- Interface unit of the power tool coupled to the handle arranged.
- a weight distribution of the power tool can be improved.
- further components for damping the battery pack can be saved relative to the housing.
- a reliability of battery packs high energy density can be inexpensively improved.
- the damping unit be provided for a vibration-damped mounting of the battery pack relative to the handle.
- the damping unit in particular at least one damping element of the damping unit, is at least partially between see arranged the handle and the interface unit and / or the battery pack.
- the battery pack in particular apart from production and / or operational fluctuations, a total electrical energy content of more than 140 Wh, in particular at least 144 Wh, preferably exactly 144 Wh.
- the hand tool comprises a power unit, which is intended to limit an electrical power, in particular an electrical power peak, preferably a voltage spike and / or a current spike, which is transmitted from the battery pack to a drive unit. This can increase a runtime and a lifetime. In particular, an uncontrolled discharge of the battery pack can be avoided.
- the power unit comprises a control and / or regulating unit for controlling and / or regulating the drive unit.
- control and / or regulating unit should be understood to mean, in particular, a unit having at least one control electronics.
- Control electronics are to be understood in particular as meaning a unit having a processor unit and a memory unit as well as an operating program stored in the memory unit.
- the power unit is provided, in particular by means of the control and / or regulating unit and preferably by means of one stored in the memory unit operating program, the transmitted electrical power, preferably an electrical peak power, in particular a voltage spike and / or a current spike, in particular in at least one operating state , Preferably in a particular selectable by an operator Energyspar ists state, especially at a start, preferably at a start of the drive unit and / or at high speeds of the drive unit to limit.
- high speeds should be understood to mean, in particular, rotational speeds which correspond to at least 75%, preferably 85% and particularly preferably 95% of a maximum rotational speed for which the drive unit is designed.
- a short-term achievement and in particular exceeding of a maximum power, for which the drive unit and / or the battery pack are designed should be understood under a peak power.
- the power unit is intended in particular for this purpose, in particular if and only if the
- the electrical power preferably an electrical power peak ze, in particular a voltage spike and / or a current spike, which is transmitted from the battery pack to the drive unit, limited to save the difference in power between peak power and the limited power, in particular in an electrical unit of the power unit between.
- the power unit is provided to supply the drive unit in addition to the battery pack, in particular when power peaks occur, with an electrical power.
- the power unit returns the electrical power stored in the electrical unit to the drive unit.
- the power unit in particular the electrical unit, is intended to charge the battery pack, at least in an idle state.
- the power unit charges the battery pack in particular when the cached electrical power is not and / or only partially delivered to the drive unit in an operation of the power tool and in particular the electrical unit is not and / or only partially discharged. This can improve energy efficiency.
- the power unit has at least one electrical unit, which is identical in particular to the aforementioned electrical unit, which is intended to limit at least one current peak transmitted from the battery pack to the drive unit.
- the electrical component has at least one passive electrical component for limiting the current peak transmitted from the battery pack to the drive unit.
- the electrical assembly in particular for limiting the transmitted from the battery pack to the drive unit electrical power comprises at least one electrical component, which as a Capacitor is formed.
- the electrical assembly preferably the electrical component, is parallel to Battery pack and in particular connected in parallel to the drive unit.
- the electrical unit can also have a plurality of electrical components, in particular a plurality of capacitors, which are preferably connected at least partially in parallel and / or in series, and particularly preferably form a capacitor network, which advantageously has a plurality of parallel and / or in one another
- Series switched capacitors includes.
- the electrical component In order for the electrical component to be able to restrict and in particular deliver high electrical powers, it is proposed that the electrical component be designed as a supercapacitor.
- a supercapacitor should in particular be understood to mean a capacitor which has a capacity of more than 100.
- the hand tool machine comprises a tool holder designed as a quick-change tool holder, which is provided for receiving a quick-change tool which has a shaft diameter of more than 10 mm, in particular of at least 18 mm and preferably of exactly 18 mm.
- the tool holder is designed in particular as an SDS-Max and preferably as an SDS-Hex Schnell montechnikmaschinemaschinesch. Furthermore, the tool holder is in particular for a recording of
- the handheld power tool according to the invention should not be limited to the application and embodiment described above.
- the handheld power tool according to the invention may have one of a number of individual elements mentioned herein,
- Fig. 1 shows a hand tool according to the invention in a schematic
- Fig. 3 shows an alternative hand tool in a schematic side view
- Fig. 4 shows another alternative hand tool in a side view.
- FIG. 1 schematically shows a handheld power tool 10a.
- the hand tool 10a is designed as an electric hand tool.
- the hand tool 10a is designed as a battery hand tool machine.
- the hand-held power tool 10a is formed by a drill and / or chisel hammer.
- a percussion drill a saw, in particular a jigsaw or a saber saw, a planer, a screwdriver, a milling cutter, a grinder, an angle grinder, an orbital sander Gardening tool and / or a multi-function tool.
- the handheld power tool 10a comprises a housing 12a.
- the housing 12a is formed by two housing shells.
- the hand tool 10a comprises a drive unit 24a.
- the drive unit 24a is provided for driving a percussion mechanism 20a of the handheld power tool 10a.
- the drive unit 24a is provided for driving a tool 28a fastened in a tool holder 26a of the handheld power tool 10a.
- the drive unit 24a comprises an electric motor.
- the electric motor is as a
- the hand tool 10a has the tool holder 26a.
- the tool holder 26a is designed as a quick change tool holder.
- the tool holder 26a is provided for receiving a tool 28a designed as a quick-change tool.
- the tool holder 26a is designed as an SDS-Hex quick change tool holder. Alternatively or additionally, the tool holder 26a may also be designed as an SDS-Max quick change tool holder.
- the tool holder 26a is provided for receiving a quick-change tool with a shaft diameter of more than 10 mm. In the present case, the tool holder 26a is provided for receiving a quick-change tool with a shaft diameter of 18 mm. Furthermore, the tool holder 26a is provided for receiving quick-change tools with a hexagonal cross-section.
- the hand tool 10a has a striking mechanism 20a.
- the percussion mechanism 20a is intended to convert an electric energy provided by the battery pack 16a into a striking energy of more than 4.7 J. Further, the percussion mechanism 20a converts the electric energy into a striking energy of at least 7.5 J. In the present case, the striking mechanism 20a converts the electrical energy into a
- the impact mechanism 20a is designed in particular as a spring impact mechanism and / or as a pneumatic striking mechanism.
- the percussion mechanism 20a has, in particular, at least one drive shaft, which is non-rotatably connected to the drive unit 24a of the handheld power tool 10a, as well as a piston, a racket and / or a firing pin.
- the hand tool 10a further comprises a handle 14a.
- the handle 14a is disposed on the housing 12a.
- the handle 14a is provided for holding and / or guiding the hand tool 10a by an operator.
- the handle 14a is palpable and / or durable with one hand.
- the handle 14a is intended to be fully gripped by an adult operator with one hand become.
- a circumference of the handle 14a is 90 mm in the present case.
- a circumference of the handle 14a is in particular at least 70 mm, preferably at least 90 mm and particularly preferably at least 110 mm and / or in particular at most 210 mm, preferably at most 180 mm and particularly preferably at most 140 mm.
- the handle 14a has at least one operating element 30a.
- the operating element 30a is provided for controlling the drive unit 24a of the handheld power tool 10a.
- the operating element 30a can be designed, for example, as an on / off switch, as an automatic shut-off safeguard and / or as a dosing regulator for metering a striking energy.
- the handle 14a is at least partially formed of a plastic and / or a rubber material.
- the handle 14a viewed along a machining axis 32a, arranged on a side facing away from the tool holder 26a side of the power tool 10a.
- the handle 14a is designed as a bow handle.
- the hand tool 10a additionally has an additional handle 34a.
- the auxiliary handle 34a is designed, for example, as a rod handle. Alternatively, depending on a configuration and in particular of an operating state of the hand tool 10a, the auxiliary handle 34a can be dispensed with.
- a weight of the handle 14a and a battery pack 16a of the power tool 10a together amount to a minimum of 1/10 and a maximum of 1/2 of the total weight of the power tool 10a.
- the hand tool 10a has the battery pack 16a.
- the battery pack 16a has a rated voltage of more than 28V.
- the battery pack 16a has at least a rated voltage of 36V. In the present case, the battery pack 16a has a nominal voltage of exactly 36V.
- the battery pack 16a has a rated capacity of more than 3 Ah.
- the battery pack 16a has a rated capacity of at least 4 Ah. In the present case, the battery pack 16a has a nominal capacity of exactly 4 Ah.
- the battery pack 16a has a total electrical energy content of more than 140 Wh.
- the battery pack 16a has a total electrical energy content of at least 144 Wh.
- the battery pack 16a has a total electrical energy content of exactly 144 Wh.
- the battery pack 16a is intended to be coupled to the hand tool 10a.
- the battery pack 16a is provided with an interface unit 36a of the power tool 10a connected.
- the battery pack 16a is arranged on the handle 14a.
- the battery pack 16a may be arranged on the housing 12a.
- the battery pack 16a is further provided to store electrical energy and to supply at least one drive unit 24a of the handheld power tool 10a with electrical energy.
- the battery pack 16a is further provided to store electrical energy and to supply at least one drive unit 24a of the handheld power tool 10a with electrical energy.
- the 16a has at least one energy store.
- the energy store comprises at least one accumulator.
- the energy storage comprises a plurality of accumulators connected together.
- the accumulators in particular for setting a voltage, in particular to the rated voltage of the battery pack 16a, at least partially connected to each other in series.
- the battery pack 16a comprises a housing 38a.
- the housing 38a Within the housing 38a of the battery pack 16a of the energy storage is arranged.
- the housing 38a is provided to protect the energy storage.
- the housing 38a protects the energy storage against external influences, such as weathering, moisture and preferably from damage in a fall.
- the handheld power tool 10a further comprises at least the interface unit 36a.
- the interface unit 36a is provided for electrical and mechanical connection to the battery pack 16a.
- the hand tool 10a has exactly one interface unit 36a. However, it is also conceivable for the handheld power tool 10a to have more than one interface unit 36a, in particular for connecting the handheld power tool 10a to more than one battery pack 16a.
- the interface unit 36a is disposed on the handle 14a.
- the interface unit 36a is provided for releasably connecting the battery pack 16a to the handle 14a.
- the battery pack 16a can be interchangeably connected to the handheld power tool 10a via the interface unit 36a.
- the battery pack 16a is provided via the interface unit 36a to a supply of the power tool 10a with electrical energy.
- the interface unit 36a comprises at least one contact element for electrically coupling the handheld power tool 10a to the battery pack 16a.
- the interface unit 36a comprises two contact elements. However, it is also conceivable a different number of contact elements.
- the contact elements of the interface unit 36a are formed corresponding to contact elements of the battery pack 16a.
- the contacts- Elements of the interface unit 36a are formed of metal.
- the contact elements are electrically connected to a power unit 22a of the power tool 10a.
- the interface unit 36a furthermore has at least one coupling unit 37a, which is provided for mechanically coupling the handheld power tool 10a to the battery pack 16a.
- the interface unit 36a has exactly one coupling unit 37a. However, a plurality of coupling units 37a are also conceivable.
- the coupling unit 37a comprises at least one fastening element.
- the coupling unit 37a comprises two fastening elements. However, it is also a different number of fasteners conceivable.
- the fastening elements are provided for a positive fastening of the battery pack 16a.
- the fastening elements are each half-shell-shaped.
- the fastening elements are formed correspondingly.
- the fastening elements can be connected to one another by at least one screw.
- other embodiments of the fastening elements that appear appropriate to a person skilled in the art are also conceivable.
- the hand tool 10a also includes a damping unit 18a, which is provided for a vibration-damped mounting of the handle 14a. Furthermore, the damping unit 18a is provided for a vibration-damped mounting of the handle 14a relative to the housing 12a.
- the damping unit 18a comprises a first damping element 40a and a second damping element 42a.
- the damping elements 40a, 42a are arranged between the handle 14a and the housing 12a of the hand tool 10a.
- the damping elements 40a, 42a are connected to the housing 12a and to the handle 14a.
- the handle 14a is connected to the housing 12a via the damping elements 40a, 42a.
- the damping elements 40a, 42a are elastic.
- the damping elements 40a, 42a are made of a
- the damping elements 40a, 42a are formed of rubber.
- other embodiments of the damping elements 40a, 42a for example made of foam, as a spring element, in particular as a leaf spring or as a helical compression spring, as a rocker arm, as a swivel joint, as a linear bearing or any combination thereof, appear to be sensible.
- the damping unit 18a is provided for a vibration-damped mounting of the battery pack 16a relative to the handle 14a.
- the damping unit 18a is provided for a vibration-damped mounting of the battery pack 16a relative to the housing 12a.
- the damping unit 18a comprises a third damping element 44a.
- the third damping element 44a is between the handle 14a and the Interface unit 36a and in particular the battery pack 16a arranged.
- the third damping element 44a is connected to the handle 14a and the interface unit 36a.
- the handle 14a is connected via the third damping element 44a to the interface unit 36a and in particular to the battery pack 16a.
- the third damping element 44a is formed in the present case, in particular to manufacturing tolerances, at least substantially equivalent to the first damping element 40a and the second damping element 42a. Alternatively or additionally, the third damping element 44a may be formed differently from the first damping element 40a and / or the second damping element 42a.
- the third damping element 44a is in an assembled state directly on the handle 14a of the power tool 10a and on the fastening elements of the coupling unit 37a of the interface unit 36a.
- the third damping element 44a is connected to the handle 14a at least substantially equivalent to the first damping element 40a and the second damping element 42a.
- the third damping element 44a could connect the housing 12a and the interface unit 36a to one another.
- the damping unit 18a converts, in particular at least partially, a mechanical energy of a vibration and / or vibration into another form of energy, such as heat.
- the damping unit 18a is intended to at least partially convert the mechanical energy of the vibration and / or the vibration into electrical energy.
- the damping unit 18a is provided to supply this converted electrical energy to the battery pack 16a for energy recovery.
- the damping unit 18a has at least one actuator element, such as a linear generator and / or a piezoelectric element.
- the damping unit 18a may be provided to at least partially compensate for vibration and / or vibration, preferably by means of an absorber mass.
- the battery pack 16a form the absorber mass.
- the absorber mass is intended to cause an oscillation and / or vibration of a unit, a
- a degree of damping of the damping unit 18a for damping vibrations and / or vibrations is adjustable.
- the degree of damping is adjustable by an operator, preferably by setting a damping characteristic, such as an elasticity, a spring constant, a stiffness, a tension and / or a pressure, in particular at least one damping element 40a, 42a, 44a.
- the handheld power tool 10a additionally comprises at least one setting unit 46a for setting at least one damping characteristic.
- the damping characteristic is at least one damping characteristic of at least one damping element 40a, 42a, 44a of the damping unit 18a.
- the hand tool 10a includes exactly one adjustment unit 46a. However, it is also conceivable for the handheld power tool 10a to comprise any other number of setting units 46a.
- the adjustment unit 46a is provided for adjusting the damping characteristic by the operator of the power tool 10a.
- the adjustment unit 46a has at least one operating element 48a, which is provided for actuation by the operator for setting the damping characteristic.
- the adjustment unit 46a has exactly one operating element 48a. However, there are also several controls 48a conceivable.
- the operating element 48a of the setting unit 46a is formed by a rotary wheel.
- the adjusting unit 46a is provided for mechanically adjusting the damping characteristic.
- the setting unit 46a is provided for an electronic adjustment of the damping characteristic, for example via an electronic unit of the hand tool 10a.
- the hand tool 10a has the power unit 22a.
- the power unit 22a is intended to limit an electrical power, preferably an electrical power peak, in particular a voltage peak and / or a current peak, which is transmitted from the battery pack 16a to the drive unit 24a.
- the power unit 22a comprises a control and / or regulating unit 50a for controlling and / or regulating the drive unit 24a.
- the control and / or regulating unit 50a comprises at least one control electronics.
- the control electronics has a processor unit and a memory unit as well as an operating program stored in the memory unit.
- the power unit 22a is provided to limit the transmitted electrical power by means of the control and / or regulating unit 50a and preferably by means of one of the operating programs stored in the memory unit.
- the power unit 22a restricts the electrical power in at least one operating state.
- the power unit 22a restricts the electric power in a power saving operation state.
- the power save mode is selectable by the operator.
- the power unit 22 limits the electric power at a start, in particular a start, the drive unit 24a and / or at high rotational speeds of the drive unit 24a. In the present case, the power unit 22a limits the electric power at 95% of a maximum speed for which the drive unit 24a is designed.
- the power unit 22a is further provided to store the difference power between a peak power and the limited power just when the power unit 22a restricts the electric power.
- the power unit 22a has an electrical unit 23a.
- the electrical unit 23a is provided to store the difference power between.
- the power unit 22a is further provided to supply the drive unit 24a with electric power in addition to the battery pack 16a.
- the power unit 22a is designed to supply the drive unit 24a with electrical power when power peaks occur. For this purpose, the power unit 22a releases an electrical power stored in an electrical unit 23a.
- the power unit 22a is provided to charge the battery pack 16a in an idle state.
- the power unit 22a charges the battery pack 16a if, during operation of the handheld power tool 10a, the cached electrical power is not completely discharged.
- the electrical unit 23a is provided to restrict at least one of the battery pack 16a transmitted to the drive unit 24a current peak.
- the electrical unit 23a has at least one, in particular passive, electrical component 25a for limiting the current peak transmitted from the battery pack 16a to the drive unit 24a.
- the electrical assembly 23a has at least one electrical component 25a.
- the electric component 25a is formed as a capacitor.
- the electrical component 25a is connected in parallel with the battery pack 16a.
- the electrical component 25a is connected in parallel to the drive unit 24a.
- the electrical assembly 23a may also include a plurality of the electrical components 25a.
- the electrical components 25a are then at least partially connected in parallel and / or in series with each other.
- the electrical components 25a then form a capacitor network.
- the electric component 25a is formed as a supercapacitor.
- the supercapacitor has a capacity of at least 100.
- FIGS. 2 to 4 show further exemplary embodiments of the invention.
- the following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, wherein, with regard to identically named components, in particular with regard to components having the same reference numbers, in principle also to the drawings and / or the description of the other embodiments, in particular FIGS , can be referenced.
- the letter a is the reference number of the embodiment in the figures 1 adjusted.
- the letter a is replaced by the letters b to d.
- FIG. 2 shows a further exemplary embodiment of the handheld power tool 10b.
- the present embodiment differs at least substantially from the previous one in that a battery pack 16b is not mounted so as to be damped relative to a vibration of a handle 14b.
- an interface unit 36b is attached directly to the handle 14b.
- a damping unit 18b has only two damping elements 40b, 42b, which are arranged between a housing 12b and the handle 14b.
- the battery pack 16b is mounted by means of the damping elements 40b, 42b via the handle 14b relative to the housing 12b indirectly damped vibration.
- FIG. 3 shows an alternative exemplary embodiment of a handheld power tool 10c.
- the present exemplary embodiment differs at least essentially from the preceding embodiment, in particular from the exemplary embodiment illustrated in FIG. 2, in that a damping unit 18c has a first damping element 40c and a second damping element 42c, which are designed differently from one another.
- the first damping element 40c is formed from an elastomer.
- the damping element 40c is formed of rubber.
- the second damping element 42 c is designed as a pivoting.
- FIG. 4 shows a further alternative exemplary embodiment of a handheld power tool 10d.
- the present embodiment differs at least substantially from the preceding, in particular the embodiment shown in Figure 1, characterized in that a handle 14d is formed of several parts.
- the handle 14d has a first handle portion 52d.
- the handle 14d has a second handle portion 54d.
- the first handle portion 52d is provided for holding and / or guiding the handheld power tool 10d. Only the first handle portion 52d is intended to be grasped by an operator.
- the present embodiment differs in that a third damping element 44d is disposed between the first handle portion 52d and the second handle portion 54d.
- a battery pack 16d is disposed on the second handle portion 54d. About the second handle portion 54d of the battery pack 16d is mounted vibration-damped relative to the housing 12d. Furthermore, the battery pack 16d is supported by the second handle portion 54d relative to the first handle portion 52d vibration damped.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015226410.6A DE102015226410A1 (en) | 2015-12-22 | 2015-12-22 | Hand tool |
PCT/EP2016/080170 WO2017108414A1 (en) | 2015-12-22 | 2016-12-08 | Portable power tool |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3393724A1 true EP3393724A1 (en) | 2018-10-31 |
Family
ID=57588982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16815766.7A Withdrawn EP3393724A1 (en) | 2015-12-22 | 2016-12-08 | Portable power tool |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3393724A1 (en) |
CN (1) | CN108430709A (en) |
DE (1) | DE102015226410A1 (en) |
WO (1) | WO2017108414A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021107827A1 (en) * | 2019-11-25 | 2021-06-03 | Husqvarna Ab | A hand-held electrically powered work tool |
EP4351834A1 (en) | 2021-06-09 | 2024-04-17 | Black & Decker Inc. | Battery pack isolation system |
JPWO2023281866A1 (en) * | 2021-07-07 | 2023-01-12 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4932479A (en) * | 1988-05-05 | 1990-06-12 | Vladimir Pyatov | Vacuum-compression type percussion power tool with a pumping chamber |
DE19604279B4 (en) * | 1996-02-07 | 2005-04-28 | Bosch Gmbh Robert | Insert tools for rotary hammers and method for its production |
DE19604282A1 (en) * | 1996-02-07 | 1997-08-14 | Bosch Gmbh Robert | Tool holder with holder for various tool systems |
DE19833650A1 (en) * | 1998-07-25 | 2000-01-27 | Hilti Ag | Hand drill |
DE102006056833A1 (en) * | 2006-12-01 | 2008-06-05 | Robert Bosch Gmbh | Pulse width modulation control of an electric hand tool |
DE202007007692U1 (en) * | 2007-05-31 | 2007-10-25 | Glory In Group Ltd. | Electric hand tool with super capacitors |
CN101510698A (en) * | 2009-03-20 | 2009-08-19 | 中信国安盟固利新能源科技有限公司 | Energy-storage system of accumulator |
CN101882813B (en) * | 2010-06-02 | 2013-05-08 | 中国科学院电工研究所 | Mixed energy storage system |
EP2505316A3 (en) * | 2011-03-30 | 2014-04-23 | HILTI Aktiengesellschaft | Control method and hand tool machine |
US9849577B2 (en) * | 2012-02-03 | 2017-12-26 | Milwaukee Electric Tool Corporation | Rotary hammer |
-
2015
- 2015-12-22 DE DE102015226410.6A patent/DE102015226410A1/en not_active Withdrawn
-
2016
- 2016-12-08 EP EP16815766.7A patent/EP3393724A1/en not_active Withdrawn
- 2016-12-08 WO PCT/EP2016/080170 patent/WO2017108414A1/en unknown
- 2016-12-08 CN CN201680075837.XA patent/CN108430709A/en active Pending
Also Published As
Publication number | Publication date |
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WO2017108414A1 (en) | 2017-06-29 |
CN108430709A (en) | 2018-08-21 |
DE102015226410A1 (en) | 2017-06-22 |
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