EP3500405B1 - Hand-held power tool and method for damping a hand-held power tool - Google Patents
Hand-held power tool and method for damping a hand-held power tool Download PDFInfo
- Publication number
- EP3500405B1 EP3500405B1 EP17745148.1A EP17745148A EP3500405B1 EP 3500405 B1 EP3500405 B1 EP 3500405B1 EP 17745148 A EP17745148 A EP 17745148A EP 3500405 B1 EP3500405 B1 EP 3500405B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- power tool
- damping
- unit
- machine housing
- 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.)
- Active
Links
- 238000013016 damping Methods 0.000 title claims description 93
- 238000000034 method Methods 0.000 title description 10
- 230000008878 coupling Effects 0.000 claims description 94
- 238000010168 coupling process Methods 0.000 claims description 94
- 238000005859 coupling reaction Methods 0.000 claims description 94
- 238000004146 energy storage Methods 0.000 claims description 21
- 230000010355 oscillation Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 description 17
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Images
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
- B25F5/006—Vibration damping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
Definitions
- a handheld power tool with a machine housing, a coupling housing connected to the machine housing and a damping unit arranged between the machine housing and the coupling housing, which is provided to dampen a transmission of vibrations and / or oscillations to an energy storage unit that can be coupled to the coupling housing, wherein an electronics unit is arranged in the machine housing.
- a handheld power tool which has a machine housing designed as an outer housing and a coupling housing designed as an inner housing and connected to the machine housing in a vibration-damped manner.
- a handheld power tool which has a machine housing designed as an inner housing and a coupling housing designed as an outer housing and connected to the machine housing in a vibration-damped manner.
- Other examples are from the DE102007028382A1 , DE202012100274U1 , EP1714748A2 or DE202012214257A1 known.
- a handheld power tool in particular an oscillating handheld power tool, is proposed, with a drive unit, with at least one Machine housing designed as an outer housing, in which the drive unit is received, with at least one coupling housing designed as a further outer housing and connected to the machine housing in an assembled state, in particular in a connection area, which is provided for coupling to a, advantageously for supplying the drive unit ,
- Energy storage unit is provided, with an electronics unit, which is at least partially, preferably at least a large part and particularly preferably completely, arranged within the coupling housing, and with a damping unit, which when the drive unit is in operation, a transmission of vibrations and / or oscillations from the Machine housing on the coupling housing at least partially attenuates.
- Provided is to be understood in particular as being special, designed and / or equipped.
- the fact that an object is provided for a specific function should be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
- the expression “at least a large part” should be understood to mean in particular at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95%.
- the handheld power tool can be designed as any, advantageously electrically designed, particularly advantageously oscillating, handheld power tool, such as a garden tool, a drill, a combination hammer, a drill and / or chisel hammer, a drill, a cordless screwdriver, a cordless drill, as a milling machine, as a plane, as a saw and / or as a grinding machine or the like.
- the handheld power tool is preferably designed as a multifunctional handheld power tool and particularly preferably as a multifunctional oscillation handheld power tool.
- the hand-held tractor can also have at least one processing unit, in particular in operative connection with the drive unit, at least one, in particular at least partially, preferably at least a large part, and particularly preferably completely, further electronics unit arranged within the machine housing and / or, advantageously as a battery pack and / or embodied as a battery pack, comprise energy storage unit.
- processing unit should be In particular, a unit can be understood which is provided in particular at least to receive at least one machining tool and / or has at least one machining tool.
- the processing unit could be linearly, rotatably and / or rotatably driven, in particular by means of the drive unit.
- the processing unit is preferably designed as an oscillation unit and can be driven in an oscillating manner, in particular by means of the drive unit, in particular in a back and forth movement over a defined angular range.
- an "outer housing” is to be understood in particular as a housing in which at least 50%, advantageously at least 60%, preferably at least 70%, particularly advantageously at least 80% and particularly preferably at least 90%, of a total housing surface of the outer housing of an area surrounding the handheld power tool is facing and / or, in particular by a user and / or from the outside, is freely accessible.
- At least 50%, advantageously at least 60%, preferably at least 70%, particularly advantageously at least 80% and particularly preferably at least 90%, of all straight lines starting from a housing surface of the outer housing and in particular aligned perpendicular to the housing surface are free from an intersection with a other component of the handheld power tool, in particular the machine housing and / or the coupling housing.
- An “electronics unit” should also be understood to mean, in particular, a unit with at least one electrical and / or electronic component, in particular operated by means of a voltage and / or a current.
- the functionality of the at least one electrical and / or electronic component can be impaired, damaged and / or destroyed by vibrations and / or oscillations transmitted in particular to the at least one electrical and / or electronic component.
- the electronics unit is advantageously designed as an electronics circuit board and / or as an electronics circuit board.
- a "damping unit” is to be understood as meaning, in particular, a unit, in particular with at least one damping element, which is intended to transfer, in particular, mechanical, vibrations and / or oscillations from the machine housing to the coupling housing, which is in particular from the drive unit and / or the Processing unit on the Machine housing are transmitted to at least partially dampen and in particular to reduce.
- the damping unit and / or the at least one damping element is preferably arranged between the machine housing and the coupling housing and advantageously in the connection area.
- the damping unit and / or the at least one damping element particularly preferably makes direct contact with the machine housing and / or the coupling housing, in particular in at least one state of use and advantageously permanently.
- the machine housing and / or the coupling housing preferably has at least one receiving recess for the at least one damping element, in particular adapted to a shape and / or contour of the damping element.
- the at least one damping element is particularly advantageously designed to be flexible and advantageously elastic and consists in particular at least partially, preferably at least to a large extent and particularly preferably completely, from a flexible and advantageously elastic material.
- an "elastic object” is to be understood in particular as an object that has at least a partial area and / or at least a part that in a normal operating state at least in its position by at least 0.1 cm, preferably at least 0.5 cm and particularly preferably by at least 1 cm, is elastically changeable, and which in particular generates a counterforce which is dependent on a change in position and preferably proportional to the change and which in particular counteracts the change.
- the elastic object is repeatedly deformable, in particular free from damage, and in particular automatically strives to return to a basic shape after deformation.
- the flexible and advantageously elastic material can in particular be a silicone, an elastomer, a thermoplastic, a rubber, in particular synthetic rubber and / or advantageously natural rubber, and / or a rubber-like material.
- the damping unit also comprises several, in particular at least two, at least four and / or at least six, advantageously at least essentially structurally identical, damping elements.
- "At least essentially structurally identical" objects are to be understood to mean in particular objects which have outer shapes that are at least essentially identical to one another, but are in particular in at least one feature, such as an internal structure, a material and / or a way of functioning.
- the at least essentially structurally identical objects are preferably identical to one another.
- a corresponding configuration of the handheld power tool can in particular improve efficiency, in particular space efficiency, component efficiency, life efficiency, environmental efficiency and / or cost efficiency.
- vibration damping of an electronics unit and an energy storage unit can be achieved, whereby a service life of the electronics unit and the energy storage unit can advantageously be extended.
- vibrations and / or oscillations acting on a user can be reduced, whereby operating convenience can advantageously be increased.
- a service life and / or fatigue strength can particularly advantageously be improved and / or wear can be minimized.
- the electronics unit can be designed, for example, as control electronics for the drive unit, as control electronics for an operating unit, as control electronics for a display unit and / or as evaluation electronics for operating the handheld power tool or the like.
- the electronics unit is preferably designed as control electronics for the energy storage unit and is provided in particular for controlling an operation and / or a supply of the energy storage unit.
- the electronics unit advantageously has an operative connection, advantageously an electrical connection, with the energy storage unit in at least one operating state. In this way, in particular, a secure and advantageously vibration-damped connection between the energy storage unit and the electronics unit can be achieved.
- the coupling housing encompasses the machine housing in a connection area, in particular between the coupling housing and the machine housing, in particular the aforementioned connection area, at least partially, preferably at least to a large extent and particularly preferably completely, which in particular provides stability and / or a Space efficiency can be improved.
- assembly efficiency and / or maintenance efficiency can be improved.
- the coupling housing has at least two, advantageously exactly two, coupling housing parts that can be separated from one another, advantageously simple assembly of the coupling housing on the machine housing and / or advantageously simple assembly of the damping unit can be achieved.
- the machine housing particularly advantageously has at least two, advantageously precisely two, machine housing parts which can be separated from one another.
- the machine housing and / or the coupling housing preferably have a shell construction.
- at least one of the damping elements of the damping unit is assigned to each of the coupling housing parts and / or machine housing parts.
- the coupling housing have at least two coupling housing parts separable from one another in a first separating direction, in particular the coupling housing parts already mentioned, and the machine housing at least two machine housing parts separable from one another in a second separating direction different from the first separating direction, in particular those already previously mentioned machine housing parts.
- the first separation direction is preferably aligned at least substantially perpendicular to the second separation direction.
- the expression "at least substantially perpendicular” is intended to define in particular an alignment of a direction relative to a reference direction, the direction and the reference direction, especially viewed in a plane, at an angle in particular between 82 ° and 98 °, advantageously between 85 ° and 95 ° and particularly preferably between 88 ° and 92 °. In this way, in particular, assembly can be further simplified and / or stability can be further improved.
- a particularly high space efficiency and / or user friendliness, in particular by reducing the vibrations and / or oscillations, can be achieved in particular if the coupling housing has at least one grip area, advantageously the rear grip area and / or the grip area facing away from the machining unit, in particular for guiding and / or holding the handheld power tool.
- the machine housing define at least one further grip area, advantageously the front grip area and / or the grip area facing the processing unit, in particular for guiding and / or holding the handheld power tool, whereby in particular an advantageous weight distribution and / or guidance of the handheld power tool can be achieved .
- the damping unit could, for example, comprise at least one at least substantially conical, frusto-conical, spherical and / or hemispherical damping element.
- the damping unit comprises at least one damping element which is at least essentially cylindrical, in particular circular cylindrical.
- all of the damping elements of the damping unit are at least essentially cylindrical, in particular circular cylindrical.
- the damping element and / or the damping elements are preferably designed in the form of a hollow cylinder.
- an “at least substantially cylindrical” object is to be understood as meaning in particular an object that deviates from a cylindrical reference object with a volume fraction of at most 30%, preferably at most 20% and particularly preferably at most 10%.
- the handheld power tool have at least one, advantageously pin-shaped, alignment element formed separately from the machine housing and the coupling housing, which is provided to align the machine housing and the coupling housing relative to one another when the machine housing and the coupling housing are connected.
- the alignment element is preferably arranged in the connection area.
- the alignment element is particularly preferably connected to the machine housing and / or the coupling housing in a non-positive and / or form-fitting manner, at least in an assembled state, advantageously by means of a clamp connection and / or a screw connection.
- an alignment element can alternatively be designed in one piece with a machine housing and / or a coupling housing.
- “in one piece” is to be understood in particular to be at least cohesively connected and / or designed with one another.
- the material bond can be produced, for example, by an adhesive process, an injection molding process, a welding process, a soldering process and / or another process.
- it is to be understood as being formed from one piece and / or in one piece.
- This one piece is preferably made from a single blank, a mass and / or a casting, such as in an extrusion process, in particular a single and / or multi-component extrusion process, and / or an injection molding process, in particular a one and / or multi-component Injection molding process.
- advantageous assembly and / or alignment of the components can be achieved during assembly.
- the damping unit comprises at least one damping element which, in the assembled state, makes direct contact with the machine housing, the coupling housing and the alignment element.
- the damping unit comprises at least one damping element which, in the assembled state, makes direct contact with the machine housing, the coupling housing and the alignment element.
- at least two damping elements of the damping unit contact the machine housing, the coupling housing and the alignment element directly in the assembled state.
- the handheld power tool having a drive unit, at least one machine housing designed as an outer housing in which the drive unit is accommodated, at least one designed as a further outer housing and in a mounted state, in particular in a connection area, the coupling housing connected to the machine housing, which is provided for coupling to an energy storage unit, advantageously provided for supplying the drive unit, and has an electronics unit which is at least partially, preferably at least largely and particularly preferably completely, within the Coupling housing is arranged, wherein during operation of the drive unit, a transmission of vibrations and / or oscillations from the machine housing to the coupling housing is at least partially damped, in particular by means of a damping unit.
- an efficiency in particular a space efficiency, a component efficiency, a life efficiency, an environmental efficiency and / or a cost efficiency can be improved.
- vibration damping of an electronics unit and an energy storage unit can be achieved, whereby a service life of the electronics unit and the energy storage unit can advantageously be extended.
- vibrations and / or oscillations acting on a user can be reduced, whereby operating convenience can advantageously be increased.
- a service life and / or fatigue strength can particularly advantageously be improved and / or wear can be minimized.
- the handheld power tool and the method for damping the handheld power tool are not intended to be limited to the application and embodiment described above.
- the hand-held power tool and the method for damping the hand-held power tool can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned herein in order to fulfill a mode of operation described herein.
- FIG 1 shows a handheld power tool 10 in a schematic representation.
- the hand machine tool 10 is designed as an oscillation hand machine tool.
- the handheld power tool 10 is designed as a multifunctional handheld power tool and, in particular, optionally provided for grinding, milling, sawing, cutting and / or rasp processing.
- the handheld power tool 10 is designed to be operated by a motor.
- handheld power tool 10 is designed as an electric handheld power tool.
- the handheld power tool 10 is designed to be cordless and thus in particular battery-operated and / or battery-operated.
- a handheld power tool as any other handheld power tool, such as a hammer drill, chisel hammer, impact drill, demolition hammer, drill, milling machine, saw, cordless screwdriver and / or garden tool or the like. It is also conceivable to design a handheld power tool to be wired and thus in particular to be network-operated.
- the handheld power tool 10 comprises a housing unit 46.
- the housing unit 46 forms an outer housing of the handheld power tool 10. At least a large part of the components required for operating the handheld power tool 10 are arranged within the housing unit 46.
- the housing unit 46 comprises a machine housing 14.
- the machine housing 14 is designed as an outer housing. In the present case, the machine housing 14 forms a front part of the handheld power tool 10. Inside of the machine housing 14, at least a large part of the components required for driving the handheld power tool 10 are arranged.
- the machine housing 14 is also formed in at least two parts and comprises two machine housing parts 34, 36.
- the machine housing parts 34, 36 have a shell design.
- the machine housing parts 34, 36 are designed as housing shells.
- the machine housing parts 34, 36 are designed to be separable from one another.
- the machine housing parts 34, 36 can be separated from one another in a separating direction 32.
- the machine housing parts 34, 36 can thus be moved in the separating direction 32 for separating and / or for connecting.
- the separation direction 32 is oriented perpendicular to a processing plane and / or a substrate. Accordingly, the machine housing parts 34, 36 have a horizontal plane of separation.
- the machine housing 14 defines a grip area 40.
- the grip area 40 is designed as a guide grip area.
- the grip area 40 is arranged on a side of the handheld power tool 10 facing a front area.
- the grip area 40 is provided at least essentially for guiding the handheld power tool 10.
- a separation direction could also be aligned parallel to a processing plane and / or a substrate.
- a machine housing could be designed in three parts and / or four parts.
- a machine housing could also be constructed in one piece and / or in one piece.
- a machine housing and / or at least one machine housing part could also have a pot construction or a combination of a shell construction and a pot construction.
- a machine housing has an additional grip element for holding and / or guiding a handheld power tool and / or that an additional grip element for holding and / or guiding the handheld power tool can be fastened to the machine housing.
- the housing unit 46 comprises a coupling housing 16.
- the coupling housing 16 is designed as an outer housing.
- the coupling housing 16 is formed separately from the machine housing 14.
- the coupling housing In the present case 16 forms a rear part of the handheld power tool 10.
- the coupling housing 16 is provided for coupling to an energy storage unit 18.
- the coupling housing 16 has an interface 48 for connecting the energy storage unit 18, which in the present case is designed in particular as a battery pack.
- at least a large part of the components required for operating the energy storage unit 18 are arranged within the coupling housing 16.
- the coupling housing 16 is connected to the machine housing 14 in an assembled state.
- the coupling housing 16 is connected to the machine housing 14 in a connection area 24, in the present case in particular arranged at least essentially centrally with respect to the handheld power tool 10.
- the coupling housing 16 completely surrounds the machine housing 14.
- the coupling housing 16 is also designed in at least two parts and comprises two coupling housing parts 26, 28 (cf. also Figure 2 ).
- the coupling housing parts 26, 28 have a shell construction.
- the coupling housing parts 26, 28 are designed as housing shells.
- the coupling housing parts 26, 28 are designed to be separable from one another.
- the coupling housing parts 26, 28 can be separated from one another in a further separation direction 30 (cf. Figure 2 ).
- the coupling housing parts 26, 28 can thus be moved in the further separation direction 30 for separation and / or connection.
- the further separation direction 30 is different from the separation direction 32.
- the further separation direction 30 is oriented perpendicular to the separation direction 32.
- the further separation direction 30 is aligned in the present case parallel to the processing plane and / or the substrate. Accordingly, the coupling housing parts 26, 28 have a vertical separation plane.
- the coupling housing 16 defines a further grip area 38.
- the further grip area 38 is designed as the main grip area.
- the further grip area 38 is arranged on a side of the handheld power tool 10 facing away from the front area.
- the further grip area 38 is provided at least essentially to hold the handheld power tool 10.
- a further separation direction could also be perpendicular be aligned with a processing plane and / or a subsurface.
- a coupling housing could be designed in three parts and / or four parts.
- a coupling housing could in principle also be designed in one piece and / or in one piece.
- a coupling housing and / or at least one coupling housing part could also have a pot construction or a combination of a shell construction and a pot construction. It is also conceivable that a coupling housing has an additional grip element for holding and / or guiding a handheld power tool and / or that an additional grip element can be fastened to the coupling housing for holding and / or guiding the handheld power tool.
- the handheld power tool 10 also comprises at least one alignment element 44 (cf. in particular Figure 2 ).
- the handheld power tool 10 comprises two alignment elements 44, in particular in the Figures 2 to 5
- the alignment elements 44 are formed separately from the machine housing 14.
- the alignment elements 44 are formed separately from the coupling housing 16.
- the alignment elements 44 are made of metal.
- the alignment elements 44 are at least essentially identical to one another.
- the alignment elements 44 are also designed in the shape of a pin.
- the alignment elements 44 are designed at least essentially in the shape of a hollow cylinder. In the present case, the alignment elements 44 are designed as centering pins.
- the alignment elements 44 are provided at least to align the machine housing 14 and the coupling housing 16 relative to one another when the machine housing 14 and the coupling housing 16 are connected.
- the alignment elements 44 are connected to the machine housing 14 in a force-fitting and / or form-fitting manner.
- the alignment elements 44 are connected to the machine housing 14 by means of a clamp connection in the assembled state.
- the alignment elements 44 are non-positively and / or positively connected to the coupling housing 16 in the assembled state.
- the alignment elements 44 are connected to the coupling housing 16 in the assembled state by means of a screw connection.
- each of the alignment elements 44 comprises an internal thread which is used to receive a screw connection element 66. The alignment elements 44 are thus provided for fastening the coupling housing 16 to the machine housing 14.
- the alignment elements 44 are aligned such that a respective main direction of extent of the alignment elements 44 is parallel to the further separation direction 30.
- the alignment elements 44 are arranged offset from one another in the separating direction 32.
- a handheld power tool could also include precisely one alignment element and / or several, in particular at least three, at least four and / or at least five alignment elements.
- at least one alignment element could also consist of plastic.
- at least one alignment element can be designed in one piece with a machine housing and / or a coupling housing. It is also conceivable to design at least one alignment element as a solid element and / or a solid profile.
- the handheld power tool 10 also has a processing unit 50 (cf. Figure 1 ).
- the processing unit 50 is arranged in the front region of the handheld power tool 10.
- the processing unit 50 is arranged in a front area of the machine housing 14.
- the processing unit 50 is at least partially arranged within the machine housing 14.
- the machining unit 50 comprises at least one machining tool holder, which is provided for holding a machining tool.
- the machining tool is intended for machining workpieces.
- a machining unit corresponds directly to a machining tool.
- the handheld power tool 10 includes a drive unit 12.
- the drive unit 12 is arranged within the machine housing 14.
- the drive unit 12 comprises a motor 60, in the present case in particular an electric motor.
- the drive unit 12 also includes a gear 62, in the present case in particular an oscillation gear.
- the drive unit 12 is in operative connection with the processing unit 50.
- the drive unit 12 is provided to drive the processing unit 50 in an oscillating manner, in particular in a back and forth movement over a defined angular range.
- a motor of a drive unit as an internal combustion engine and / or a hybrid engine.
- a transmission could also be fundamentally different from an oscillation transmission.
- the handheld power tool 10 also includes an electronics unit 20.
- the electronics unit 20 is designed as an electrical and / or electronic unit. In the present case, the electronics unit 20 is designed as an electronics board. The electronics unit 20 is arranged completely in the coupling housing 16.
- the electronics unit 20 is designed as control electronics. In the present case, the electronics unit 20 is designed as control electronics for the energy storage unit 18 and is provided in particular to control an operation and / or a supply of the energy storage unit 18. Accordingly, the electronics unit 20 has an electrical connection to the energy storage unit 18 in at least one operating state. Alternatively or additionally, however, an electronics unit could also be designed as control electronics for a drive unit and / or as evaluation electronics.
- the handheld power tool 10 comprises a damping unit 22 (cf. in particular Figure 2 ).
- the damping unit 22 is arranged between the machine housing 14 and the coupling housing 16.
- the damping unit 22 is arranged in the connection area 24.
- the damping unit 22 makes direct contact with the machine housing 14 and the coupling housing 16.
- the damping unit 22 is provided to at least partially dampen a transmission of vibrations and / or oscillations from the machine housing 14 to the coupling housing 16 when the drive unit 12 is in operation.
- the damping unit 22 comprises at least one damping element 42.
- the damping unit 22 comprises four damping elements 42, in particular in the Figures 2 to 5 for the sake of clarity, only one of the damping elements 42 is provided with reference symbols.
- the damping elements 42 are at least essentially identical.
- the damping elements 42 are cylindrical, in the present case in particular circular cylindrical.
- the damping elements 42 are also designed as a hollow cylinder.
- the damping elements 42 are also designed to be flexible.
- the damping elements 42 are designed to be deformable.
- the damping elements 42 are elastic and consist entirely of an elastic material.
- the damping elements 42 consist of a damping material. In the present case, the damping elements 42 are made of rubber.
- the damping elements 42 contact the machine housing 14, the coupling housing 16 and at least one of the alignment elements 44 directly.
- Two of the damping elements 42 are in each case arranged on opposite sides of the handheld power tool 10 with respect to the further separation direction 30.
- the damping elements 42 are arranged completely within the coupling housing 16.
- the damping elements 42 are arranged, in particular clamped, between an inside of the coupling housing 16 and an outside of the machine housing 14.
- the machine housing 14 has several, in the present case in particular four, receiving recesses 64 corresponding to the damping elements 42, one of the damping elements 42 being arranged in each of the receiving recesses 64 in the assembled state (cf. in particular Figure 3 ).
- two of the damping elements 42 are assigned to each of the alignment elements 44.
- the damping elements 42 completely encompass the respective alignment element 44.
- the damping element 42 is arranged in one of the receiving recesses 64 of the machine housing 14.
- a first cover surface 68 of the damping element 42 contacts the machine housing 14.
- an outer side surface 70 of the damping element 42 contacts the machine housing 14.
- the outer side surface 70 of the damping element 42 contacts the machine housing 14 at least over part of an entire extent of the damping element 42.
- the damping element 42 completely encompasses one of the alignment elements 44.
- an inner side surface 72 of the damping element 42 contacts the alignment element 44.
- the inner side surface 72 of the damping element 42 contacts the alignment element 44 over an entire extent of the damping element 42.
- a second cover surface 74 of the damping element 42 opposite, in particular, the first cover surface 68 makes contact with the coupling housing 16.
- a damping unit could also have a different number of damping elements, such as precisely one damping element and / or two damping elements and / or at least six damping elements.
- At least one damping element could also have a shape deviating from a cylinder and, for example, be designed in the shape of a truncated cone.
- at least one damping element could in principle also consist of silicone and / or a thermoplastic.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Vibration Prevention Devices (AREA)
Description
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Ferner ist aus der
Zudem ist aus der
Laut Anspruch 1, es wird eine Handwerkzeugmaschine, insbesondere eine Oszillationshandwerkzeugmaschine, vorgeschlagen, mit einer Antriebseinheit, mit wenigstens einem als Außengehäuse ausgebildeten Maschinengehäuse, in welcher die Antriebseinheit aufgenommen ist, mit wenigstens einem als weiteres Außengehäuse ausgebildeten und in einem montierten Zustand, insbesondere in einem Verbindungsbereich, mit dem Maschinengehäuse verbundenen Kopplungsgehäuse, welches zu einer Kopplung mit einer, vorteilhaft zu einer Versorgung der Antriebseinheit vorgesehenen, Energiespeichereinheit vorgesehen ist, mit einer Elektronikeinheit, welche zumindest teilweise, vorzugsweise zu wenigstens einem Großteil und besonders bevorzugt vollständig, innerhalb des Kopplungsgehäuses angeordnet ist, und mit einer Dämpfungseinheit, welche bei einem Betrieb der Antriebseinheit eine Übertragung von Vibrationen und/oder Schwingungen von dem Maschinengehäuse auf das Kopplungsgehäuse zumindest teilweise dämpft. Unter "vorgesehen" soll insbesondere speziell, ausgelegt und/oder ausgestattet verstanden werden. Darunter, dass ein Objekt zu einer bestimmten Funktion vorgesehen ist, soll insbesondere verstanden werden, dass das Objekt diese bestimmte Funktion in zumindest einem Anwendungs- und/oder Betriebszustand erfüllt und/oder ausführt. Unter dem Ausdruck "zu wenigstens einem Großteil" sollen insbesondere zumindest 55 %, vorteilhaft zumindest 65 %, vorzugsweise zumindest 75 %, besonders bevorzugt zumindest 85 % und besonders vorteilhaft zumindest 95 % verstanden werden.According to claim 1, a handheld power tool, in particular an oscillating handheld power tool, is proposed, with a drive unit, with at least one Machine housing designed as an outer housing, in which the drive unit is received, with at least one coupling housing designed as a further outer housing and connected to the machine housing in an assembled state, in particular in a connection area, which is provided for coupling to a, advantageously for supplying the drive unit , Energy storage unit is provided, with an electronics unit, which is at least partially, preferably at least a large part and particularly preferably completely, arranged within the coupling housing, and with a damping unit, which when the drive unit is in operation, a transmission of vibrations and / or oscillations from the Machine housing on the coupling housing at least partially attenuates. “Provided” is to be understood in particular as being special, designed and / or equipped. The fact that an object is provided for a specific function should be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state. The expression “at least a large part” should be understood to mean in particular at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95%.
Die Handwerkzeugmaschine kann als beliebige, vorteilhaft elektrisch ausgebildete, besonders vorteilhaft oszillierende, Handwerkzeugmaschine ausgebildet sein, wie beispielsweise als Gartengerät, als Bohrmaschine, als Kombihammer, als Bohr- und/oder Meißelhammer, als Bohrmaschine, als Akku-Schrauber, als Akku-Bohrer, als Fräse, als Hobel, als Säge und/oder als Schleifmaschine oder dergleichen. Bevorzugt ist die Handwerkzeugmaschine als Multifunktionshandwerkzeugmaschine und besonders bevorzugt als Multifunktionsoszillationshandwerkzeugmaschine ausgebildet. Insbesondere kann die Handwerkezugmaschine auch zumindest eine, insbesondere mit der Antriebseinheit in Wirkverbindung stehende, Bearbeitungseinheit, zumindest eine, insbesondere zumindest teilweise, vorzugsweise zu wenigstens einem Großteil und besonders bevorzugt vollständig, innerhalb des Maschinengehäuses angeordnete, weitere Elektronikeinheit und/oder die, vorteilhaft als Batteriepack und/oder als Akkupack ausgebildete, Energiespeichereinheit umfassen. Unter einer "Bearbeitungseinheit" soll dabei insbesondere eine Einheit verstanden werden, welche insbesondere zumindest zu einer Aufnahme von zumindest einem Bearbeitungswerkzeug vorgesehen ist und/oder zumindest ein Bearbeitungswerkzeug aufweist. Die Bearbeitungseinheit könnte dabei, insbesondere mittels der Antriebseinheit, linear, drehbar und/oder rotierend antreibbar sein. Bevorzugt ist die Bearbeitungseinheit jedoch als Oszillationseinheit ausgebildet und, insbesondere mittels der Antriebseinheit, oszillierend, insbesondere in einer hin und her Bewegung über einen definierten Winkelbereich, antreibbar. Ferner soll unter einem "Außengehäuse" insbesondere ein Gehäuse verstanden werden, bei welchem zumindest 50 %, vorteilhaft zumindest 60 %, vorzugsweise zumindest 70 %, besonders vorteilhaft zumindest 80 % und besonders bevorzugt zumindest 90 %, einer gesamten Gehäuseoberfläche des Außengehäuses einer Umgebung der Handwerkzeugmaschine zugewandt ist und/oder, insbesondere von einem Benutzer und/oder von außen, frei zugänglich ist. Insbesondere sind dabei zumindest 50 %, vorteilhaft zumindest 60 %, vorzugsweise zumindest 70 %, besonders vorteilhaft zumindest 80 % und besonders bevorzugt zumindest 90 %, sämtlicher von einer Gehäuseoberfläche des Außengehäuses ausgehender und insbesondere senkrecht zu der Gehäuseoberfläche ausgerichteter Geraden frei von einem Schnittpunkt mit einem anderen Bauteil der Handwerkzeugmaschine, insbesondere dem Maschinengehäuse und/oder dem Kopplungsgehäuse. Unter einer "Elektronikeinheit" soll zudem insbesondere eine, insbesondere mittels einer Spannung und/oder einem Strom betriebene, Einheit mit zumindest einem elektrischen und/oder elektronischen Bauteil verstanden werden. Insbesondere kann das zumindest eine elektrische und/oder elektronische Bauteil dabei durch, insbesondere auf das zumindest eine elektrische und/oder elektronische Bauteil übertragene, Vibrationen und/oder Schwingungen in seiner Funktionsweise beeinträchtigt, beschädigt und/oder zerstört werden. Vorteilhaft ist die Elektronikeinheit als Elektronikleiterplatte und/oder als Elektronikplatine ausgebildet.The handheld power tool can be designed as any, advantageously electrically designed, particularly advantageously oscillating, handheld power tool, such as a garden tool, a drill, a combination hammer, a drill and / or chisel hammer, a drill, a cordless screwdriver, a cordless drill, as a milling machine, as a plane, as a saw and / or as a grinding machine or the like. The handheld power tool is preferably designed as a multifunctional handheld power tool and particularly preferably as a multifunctional oscillation handheld power tool. In particular, the hand-held tractor can also have at least one processing unit, in particular in operative connection with the drive unit, at least one, in particular at least partially, preferably at least a large part, and particularly preferably completely, further electronics unit arranged within the machine housing and / or, advantageously as a battery pack and / or embodied as a battery pack, comprise energy storage unit. Under a "processing unit" should be In particular, a unit can be understood which is provided in particular at least to receive at least one machining tool and / or has at least one machining tool. The processing unit could be linearly, rotatably and / or rotatably driven, in particular by means of the drive unit. However, the processing unit is preferably designed as an oscillation unit and can be driven in an oscillating manner, in particular by means of the drive unit, in particular in a back and forth movement over a defined angular range. Furthermore, an "outer housing" is to be understood in particular as a housing in which at least 50%, advantageously at least 60%, preferably at least 70%, particularly advantageously at least 80% and particularly preferably at least 90%, of a total housing surface of the outer housing of an area surrounding the handheld power tool is facing and / or, in particular by a user and / or from the outside, is freely accessible. In particular, at least 50%, advantageously at least 60%, preferably at least 70%, particularly advantageously at least 80% and particularly preferably at least 90%, of all straight lines starting from a housing surface of the outer housing and in particular aligned perpendicular to the housing surface are free from an intersection with a other component of the handheld power tool, in particular the machine housing and / or the coupling housing. An “electronics unit” should also be understood to mean, in particular, a unit with at least one electrical and / or electronic component, in particular operated by means of a voltage and / or a current. In particular, the functionality of the at least one electrical and / or electronic component can be impaired, damaged and / or destroyed by vibrations and / or oscillations transmitted in particular to the at least one electrical and / or electronic component. The electronics unit is advantageously designed as an electronics circuit board and / or as an electronics circuit board.
Darüber hinaus soll unter einer "Dämpfungseinheit" insbesondere eine Einheit, insbesondere mit zumindest einem Dämpfungselement, verstanden werden, welche dazu vorgesehen ist, insbesondere mechanische, Vibrationen und/oder Schwingungen von dem Maschinengehäuse auf das Kopplungsgehäuse, welche insbesondere von der Antriebseinheit und/oder der Bearbeitungseinheit auf das Maschinengehäuse übertragen werden, zumindest teilweise zu dämpfen und insbesondere zu reduzieren. Vorzugsweise ist die Dämpfungseinheit und/oder das wenigstens eine Dämpfungselement hierzu zwischen dem Maschinengehäuse und dem Kopplungsgehäuse und vorteilhaft in dem Verbindungsbereich angeordnet. Besonders bevorzugt kontaktiert die Dämpfungseinheit und/oder das wenigstens eine Dämpfungselement das Maschinengehäuse und/oder das Kopplungsgehäuse unmittelbar, insbesondere in wenigstens einem Anwendungszustand und vorteilhaft dauerhaft. Vorzugsweise weist das Maschinengehäuse und/oder das Kopplungsgehäuse dabei zumindest eine, insbesondere an eine Form und/oder Kontur des Dämpfungselements angepasste, Aufnahmevertiefung für das wenigstens eine Dämpfungselement auf. Besonders vorteilhaft ist das wenigstens eine Dämpfungselement flexibel und vorteilhaft elastisch ausgebildet und besteht insbesondere zumindest teilweise, vorzugsweise zu wenigstens einem Großteil und besonders bevorzugt vollständig, aus einem flexiblen und vorteilhaft elastischen Material. In diesem Zusammenhang soll unter einem "elastischen Objekt" insbesondere ein Objekt verstanden werden, das zumindest einen Teilbereich und/oder zumindest einen Teil aufweist, der in einem normalen Betriebszustand zumindest in seiner Position um zumindest 0,1 cm, vorzugsweise um zumindest 0,5 cm und besonders bevorzugt um zumindest 1 cm, elastisch veränderbar ist, und das insbesondere eine von einer Veränderung der Position abhängige und vorzugsweise zu der Veränderung proportionale Gegenkraft erzeugt, die insbesondere der Veränderung entgegen wirkt. Insbesondere ist das elastische Objekt wiederholt, insbesondere beschädigungsfrei, verformbar und strebt insbesondere nach einer Verformung selbstständig wieder einer Grundform zu. Das flexible und vorteilhaft elastische Material kann dabei insbesondere ein Silikon, ein Elastomer, ein Thermoplast, ein Gummi, insbesondere synthetischer Gummi und/oder vorteilhaft natürlicher Gummi, und/oder ein gummiähnliches Material sein. Besonders vorteilhaft umfasst die Dämpfungseinheit zudem mehrere, insbesondere zumindest zwei, zumindest vier und/oder zumindest sechs, vorteilhaft zumindest im Wesentlichen baugleiche, Dämpfungselemente. Unter "zumindest im Wesentlichen baugleichen" Objekten sollen dabei insbesondere Objekte verstanden werden, welche zumindest im Wesentlichen identisch zueinander ausgebildete Außenformen aufweisen, sich jedoch insbesondere in zumindest einem Merkmal, wie beispielsweise einem inneren Aufbau, einem Material und/oder einer Funktionsweise voneinander unterscheiden können. Bevorzugt sind die zumindest im Wesentlichen baugleichen Objekte jedoch abgesehen von Fertigungstoleranzen und/oder im Rahmen fertigungstechnischer Möglichkeiten und/oder im Rahmen standardisierter Toleranzen zueinander identisch. Durch eine entsprechende Ausgestaltung der Handwerkzeugmaschine kann insbesondere eine Effizienz, insbesondere eine Bauraumeffizienz, eine Bauteileeffizienz, eine Lebenseffizienz, eine Umwelteffizienz und/oder eine Kosteneffizienz, verbessert werden. Insbesondere kann dabei eine Vibrationsdämpfung einer Elektronikeinheit und einer Energiespeichereinheit erreicht werden, wodurch vorteilhaft eine Lebensdauer der Elektronikeinheit und der Energiespeichereinheit verlängert werden kann. Zudem können auf einen Benutzer einwirkende Vibrationen und/oder Schwingungen reduziert werden, wodurch vorteilhaft ein Bedienkomfort erhöht werden kann. Darüber hinaus kann besonders vorteilhaft eine Standzeit und/oder eine Dauerfestigkeit verbessert und/oder ein Verschleiß minimiert werden.In addition, a "damping unit" is to be understood as meaning, in particular, a unit, in particular with at least one damping element, which is intended to transfer, in particular, mechanical, vibrations and / or oscillations from the machine housing to the coupling housing, which is in particular from the drive unit and / or the Processing unit on the Machine housing are transmitted to at least partially dampen and in particular to reduce. For this purpose, the damping unit and / or the at least one damping element is preferably arranged between the machine housing and the coupling housing and advantageously in the connection area. The damping unit and / or the at least one damping element particularly preferably makes direct contact with the machine housing and / or the coupling housing, in particular in at least one state of use and advantageously permanently. The machine housing and / or the coupling housing preferably has at least one receiving recess for the at least one damping element, in particular adapted to a shape and / or contour of the damping element. The at least one damping element is particularly advantageously designed to be flexible and advantageously elastic and consists in particular at least partially, preferably at least to a large extent and particularly preferably completely, from a flexible and advantageously elastic material. In this context, an "elastic object" is to be understood in particular as an object that has at least a partial area and / or at least a part that in a normal operating state at least in its position by at least 0.1 cm, preferably at least 0.5 cm and particularly preferably by at least 1 cm, is elastically changeable, and which in particular generates a counterforce which is dependent on a change in position and preferably proportional to the change and which in particular counteracts the change. In particular, the elastic object is repeatedly deformable, in particular free from damage, and in particular automatically strives to return to a basic shape after deformation. The flexible and advantageously elastic material can in particular be a silicone, an elastomer, a thermoplastic, a rubber, in particular synthetic rubber and / or advantageously natural rubber, and / or a rubber-like material. Particularly advantageously, the damping unit also comprises several, in particular at least two, at least four and / or at least six, advantageously at least essentially structurally identical, damping elements. "At least essentially structurally identical" objects are to be understood to mean in particular objects which have outer shapes that are at least essentially identical to one another, but are in particular in at least one feature, such as an internal structure, a material and / or a way of functioning. However, apart from manufacturing tolerances and / or within the scope of manufacturing technology and / or within the framework of standardized tolerances, the at least essentially structurally identical objects are preferably identical to one another. A corresponding configuration of the handheld power tool can in particular improve efficiency, in particular space efficiency, component efficiency, life efficiency, environmental efficiency and / or cost efficiency. In particular, vibration damping of an electronics unit and an energy storage unit can be achieved, whereby a service life of the electronics unit and the energy storage unit can advantageously be extended. In addition, vibrations and / or oscillations acting on a user can be reduced, whereby operating convenience can advantageously be increased. In addition, a service life and / or fatigue strength can particularly advantageously be improved and / or wear can be minimized.
Die Elektronikeinheit kann beispielsweise als Steuerelektronik für die Antriebseinheit, als Steuerelektronik für eine Bedieneinheit, als Steuerelektronik für eine Anzeigeeinheit und/oder als Auswerteelektronik für einen Betrieb der Handwerkzeugmaschine oder dergleichen ausgebildet sein. Vorzugsweise ist die Elektronikeinheit jedoch als Steuerelektronik für die Energiespeichereinheit ausgebildet und insbesondere zu einer Steuerung eines Betriebs und/oder einer Versorgung der Energiespeichereinheit vorgesehen. Vorteilhaft weist die Elektronikeinheit in diesem Fall in zumindest einem Betriebszustand eine Wirkverbindung, vorteilhaft eine elektrische Verbindung, mit der Energiespeichereinheit auf. Hierdurch kann insbesondere eine sichere und vorteilhaft vibrationsgedämpfte Verbindung zwischen der Energiespeichereinheit und der Elektronikeinheit erreicht werden.The electronics unit can be designed, for example, as control electronics for the drive unit, as control electronics for an operating unit, as control electronics for a display unit and / or as evaluation electronics for operating the handheld power tool or the like. However, the electronics unit is preferably designed as control electronics for the energy storage unit and is provided in particular for controlling an operation and / or a supply of the energy storage unit. In this case, the electronics unit advantageously has an operative connection, advantageously an electrical connection, with the energy storage unit in at least one operating state. In this way, in particular, a secure and advantageously vibration-damped connection between the energy storage unit and the electronics unit can be achieved.
Ferner wird vorgeschlagen, dass das Kopplungsgehäuse das Maschinengehäuse in einem Verbindungsbereich, insbesondere zwischen dem Kopplungsgehäuse und dem Maschinengehäuse, insbesondere dem zuvor genannten Verbindungsbereich, zumindest teilweise, vorzugsweise zu wenigstens einem Großteil und besonders bevorzugt vollständig, umgreift, wodurch insbesondere eine Stabilität und/oder eine Bauraumeffizienz verbessert werden kann. Zudem kann eine Montageeffizienz und/oder eine Wartungseffizienz verbessert werden.It is further proposed that the coupling housing encompasses the machine housing in a connection area, in particular between the coupling housing and the machine housing, in particular the aforementioned connection area, at least partially, preferably at least to a large extent and particularly preferably completely, which in particular provides stability and / or a Space efficiency can be improved. In addition, assembly efficiency and / or maintenance efficiency can be improved.
Weist das Kopplungsgehäuse zumindest zwei, vorteilhaft genau zwei, voneinander trennbare Kopplungsgehäuseteile auf, kann insbesondere eine vorteilhaft einfache Montage des Kopplungsgehäuses an dem Maschinengehäuse und/oder eine vorteilhaft einfache Montage der Dämpfungseinheit erreicht werden. Besonders vorteilhaft weist das Maschinengehäuse zumindest zwei, vorteilhaft genau zwei, voneinander trennbare Maschinengehäuseteile auf. Vorzugsweise weisen das Maschinengehäuse und/oder das Kopplungsgehäuse dabei eine Schalenbauweise auf. Besonders bevorzugt ist jedem der Kopplungsgehäuseteile und/oder Maschinengehäuseteile zumindest eines der Dämpfungselemente der Dämpfungseinheit zugeordnet.If the coupling housing has at least two, advantageously exactly two, coupling housing parts that can be separated from one another, advantageously simple assembly of the coupling housing on the machine housing and / or advantageously simple assembly of the damping unit can be achieved. The machine housing particularly advantageously has at least two, advantageously precisely two, machine housing parts which can be separated from one another. The machine housing and / or the coupling housing preferably have a shell construction. Particularly preferably, at least one of the damping elements of the damping unit is assigned to each of the coupling housing parts and / or machine housing parts.
In einer Ausgestaltung der Erfindung wird vorgeschlagen, dass das Kopplungsgehäuse zumindest zwei in eine erste Trennrichtung voneinander trennbare Kopplungsgehäuseteile, insbesondere die bereits zuvor genannten Kopplungsgehäuseteile, und das Maschinengehäuse zumindest zwei in eine von der ersten Trennrichtung verschiedene zweite Trennrichtung voneinander trennbare Maschinengehäuseteile, insbesondere die bereits zuvor genannten Maschinengehäuseteile, aufweist. Bevorzugt ist die erste Trennrichtung dabei zumindest im Wesentlichen senkrecht zu der zweiten Trennrichtung ausgerichtet. In diesem Zusammenhang soll der Ausdruck "zumindest im Wesentlichen senkrecht" insbesondere eine Ausrichtung einer Richtung relativ zu einer Bezugsrichtung definieren, wobei die Richtung und die Bezugsrichtung, insbesondere in einer Ebene betrachtet, einen Winkel insbesondere zwischen 82° und 98°, vorteilhaft zwischen 85° und 95° und besonders bevorzugt zwischen 88° und 92° einschließen. Hierdurch kann insbesondere eine Montage weiter vereinfacht und/oder eine Stabilität weiter verbessert werden.In one embodiment of the invention it is proposed that the coupling housing have at least two coupling housing parts separable from one another in a first separating direction, in particular the coupling housing parts already mentioned, and the machine housing at least two machine housing parts separable from one another in a second separating direction different from the first separating direction, in particular those already previously mentioned machine housing parts. The first separation direction is preferably aligned at least substantially perpendicular to the second separation direction. In this context, the expression "at least substantially perpendicular" is intended to define in particular an alignment of a direction relative to a reference direction, the direction and the reference direction, especially viewed in a plane, at an angle in particular between 82 ° and 98 °, advantageously between 85 ° and 95 ° and particularly preferably between 88 ° and 92 °. In this way, in particular, assembly can be further simplified and / or stability can be further improved.
Eine besonders hohe Bauraumeffizienz und/oder Benutzerfreundlichkeit, insbesondere durch eine Reduzierung der Vibrationen und/oder Schwingungen, kann insbesondere erreicht werden, wenn das Kopplungsgehäuse zumindest einen Griffbereich, vorteilhaft hinteren und/oder der Bearbeitungseinheit abgewandten Griffbereich, insbesondere zu einem Führen und/oder Halten der Handwerkzeugmaschine, definiert.A particularly high space efficiency and / or user friendliness, in particular by reducing the vibrations and / or oscillations, can be achieved in particular if the coupling housing has at least one grip area, advantageously the rear grip area and / or the grip area facing away from the machining unit, in particular for guiding and / or holding the handheld power tool.
Darüber hinaus wird vorgeschlagen, dass das Maschinengehäuse zumindest einen weiteren Griffbereich, vorteilhaft vorderen und/oder der Bearbeitungseinheit zugewandten Griffbereich, insbesondere zu einem Führen und/oder Halten der Handwerkzeugmaschine, definiert, wodurch insbesondere eine vorteilhafte Gewichtsverteilung und/oder Führung der Handwerkzeugmaschine erreicht werden kann.In addition, it is proposed that the machine housing define at least one further grip area, advantageously the front grip area and / or the grip area facing the processing unit, in particular for guiding and / or holding the handheld power tool, whereby in particular an advantageous weight distribution and / or guidance of the handheld power tool can be achieved .
Die Dämpfungseinheit könnte beispielsweise zumindest ein zumindest im Wesentlichen kegelförmig, kegelstumpfförmig, kugelförmig und/oder halbkugelförmig ausgebildetes Dämpfungselement umfassen. In einer bevorzugten Ausgestaltung der Erfindung wird jedoch vorgeschlagen, dass die Dämpfungseinheit zumindest ein Dämpfungselement umfasst, welches zumindest im Wesentlichen zylinderförmig, insbesondere kreiszylinderförmig, ausgebildet ist. Vorteilhaft sind sämtliche Dämpfungselemente der Dämpfungseinheit zumindest im Wesentlichen zylinderförmig, insbesondere kreiszylinderförmig, ausgebildet. Bevorzugt ist das Dämpfungselement und/oder sind die Dämpfungselemente dabei hohlzylinderförmig ausgebildet. Unter einem "zumindest im Wesentlichen zylinderförmigen" Objekt soll in diesem Zusammenhang insbesondere ein Objekt verstanden werden, welches von einem zylinderförmigen Referenzobjekt mit einem Volumenanteil von höchstens 30 %, vorzugsweise von höchstens 20 % und besonders bevorzugt von höchstens 10 % abweicht. Entsprechendes soll insbesondere für die Wendungen zumindest im Wesentlichen kegelförmig, kegelstumpfförmig, kugelförmig und/oder halbkugelförmig gelten. Hierdurch kann insbesondere eine nahezu bauraumneutrale Dämpfungseinheit bereitgestellt werden. Zudem kann eine Dämpfungswirkung vorteilhaft verbessert werden.The damping unit could, for example, comprise at least one at least substantially conical, frusto-conical, spherical and / or hemispherical damping element. In a preferred embodiment of the invention, however, it is proposed that the damping unit comprises at least one damping element which is at least essentially cylindrical, in particular circular cylindrical. Advantageously, all of the damping elements of the damping unit are at least essentially cylindrical, in particular circular cylindrical. The damping element and / or the damping elements are preferably designed in the form of a hollow cylinder. In this context, an “at least substantially cylindrical” object is to be understood as meaning in particular an object that deviates from a cylindrical reference object with a volume fraction of at most 30%, preferably at most 20% and particularly preferably at most 10%. The same should apply in particular to the turns at least essentially conical, frustoconical, spherical and / or hemispherical. In this way, in particular, a damping unit that is almost space-neutral can be provided. In addition, a damping effect can advantageously be improved.
Ferner wird vorgeschlagen, dass die Handwerkzeugmaschine zumindest ein von dem Maschinengehäuse und dem Kopplungsgehäuse separat ausgebildetes, vorteilhaft stiftförmiges, Ausrichtelement aufweist, welches dazu vorgesehen ist, bei einer Verbindung des Maschinengehäuses und des Kopplungsgehäuses, das Maschinengehäuse und das Kopplungsgehäuse relativ zueinander auszurichten. Vorzugsweise ist das Ausrichtelement in dem Verbindungsbereich angeordnet. Besonders bevorzugt ist das Ausrichtelement zumindest in einem montierten Zustand kraft- und/oder formschlüssig mit dem Maschinengehäuse und/oder dem Kopplungsgehäuse verbunden, vorteilhaft mittels einer Klemmverbindung und/oder einer Schraubverbindung. Ferner kann ein Ausrichtelement alternativ einstückig mit einem Maschinengehäuse und/oder einem Kopplungsgehäuse ausgebildet sein. Unter "einstückig" soll in diesem Zusammenhang insbesondere zumindest stoffschlüssig verbunden und/oder miteinander ausgebildet verstanden werden. Der Stoffschluss kann beispielsweise durch einen Klebeprozess, einen Anspritzprozess, einen Schweißprozess, einen Lötprozess und/oder einen anderen Prozess hergestellt werden. Vorteilhaft soll unter einstückig aus einem Stück und/oder in einem Stück geformt verstanden werden. Vorzugsweise wird dieses eine Stück aus einem einzelnen Rohling, einer Masse und/oder einem Guss, wie beispielsweise in einem Extrusionsverfahren, insbesondere einem Ein- und/oder Mehrkomponenten-Extrusionsverfahren, und/oder einem Spritzgussverfahren, insbesondere einem Ein- und/oder Mehrkomponenten-Spritzgussverfahren, hergestellt. Hierdurch kann insbesondere eine vorteilhafte Montage und/oder Ausrichtung der Bauteile während einer Montage erreicht werden.Furthermore, it is proposed that the handheld power tool have at least one, advantageously pin-shaped, alignment element formed separately from the machine housing and the coupling housing, which is provided to align the machine housing and the coupling housing relative to one another when the machine housing and the coupling housing are connected. The alignment element is preferably arranged in the connection area. The alignment element is particularly preferably connected to the machine housing and / or the coupling housing in a non-positive and / or form-fitting manner, at least in an assembled state, advantageously by means of a clamp connection and / or a screw connection. Furthermore, an alignment element can alternatively be designed in one piece with a machine housing and / or a coupling housing. In this context, “in one piece” is to be understood in particular to be at least cohesively connected and / or designed with one another. The material bond can be produced, for example, by an adhesive process, an injection molding process, a welding process, a soldering process and / or another process. Advantageously, it is to be understood as being formed from one piece and / or in one piece. This one piece is preferably made from a single blank, a mass and / or a casting, such as in an extrusion process, in particular a single and / or multi-component extrusion process, and / or an injection molding process, in particular a one and / or multi-component Injection molding process. In this way, in particular, advantageous assembly and / or alignment of the components can be achieved during assembly.
Eine besonders vorteilhafte Dämpfungswirkung kann insbesondere dann erreicht werden, wenn die Dämpfungseinheit zumindest ein Dämpfungselement umfasst, welches im montierten Zustand das Maschinengehäuse, das Kopplungsgehäuse und das Ausrichtelement unmittelbar kontaktiert. Vorteilhaft kontaktieren zumindest zwei Dämpfungselemente der Dämpfungseinheit im montierten Zustand das Maschinengehäuse, das Kopplungsgehäuse und das Ausrichtelement unmittelbar.A particularly advantageous damping effect can be achieved in particular if the damping unit comprises at least one damping element which, in the assembled state, makes direct contact with the machine housing, the coupling housing and the alignment element. Advantageously, at least two damping elements of the damping unit contact the machine housing, the coupling housing and the alignment element directly in the assembled state.
Ferner wird als Beispiel ein Verfahren zur Dämpfung einer Handwerkzeugmaschine, insbesondere einer Oszillationshandwerkzeugmaschine, vorgeschlagen, wobei die Handwerkzeugmaschine eine Antriebseinheit, wenigstens ein als Außengehäuse ausgebildetes Maschinengehäuse, in welcher die Antriebseinheit aufgenommen ist, wenigstens ein als weiteres Außengehäuse ausgebildetes und in einem montierten Zustand, insbesondere in einem Verbindungsbereich, mit dem Maschinengehäuse verbundenes Kopplungsgehäuse, welches zu einer Kopplung mit einer, vorteilhaft zu einer Versorgung der Antriebseinheit vorgesehenen, Energiespeichereinheit vorgesehen ist, und eine Elektronikeinheit aufweist, welche zumindest teilweise, vorzugsweise zu wenigstens einem Großteil und besonders bevorzugt vollständig, innerhalb des Kopplungsgehäuses angeordnet ist, wobei bei einem Betrieb der Antriebseinheit eine Übertragung von Vibrationen und/oder Schwingungen von dem Maschinengehäuse auf das Kopplungsgehäuse, insbesondere mittels einer Dämpfungseinheit, zumindest teilweise gedämpft wird. Hierdurch kann insbesondere eine Effizienz, insbesondere eine Bauraumeffizienz, eine Bauteileeffizienz, eine Lebenseffizienz, eine Umwelteffizienz und/oder eine Kosteneffizienz, verbessert werden. Insbesondere kann dabei eine Vibrationsdämpfung einer Elektronikeinheit und einer Energiespeichereinheit erreicht werden, wodurch vorteilhaft eine Lebensdauer der Elektronikeinheit und der Energiespeichereinheit verlängert werden kann. Zudem können auf einen Benutzer einwirkende Vibrationen und/oder Schwingungen reduziert werden, wodurch vorteilhaft ein Bedienkomfort erhöht werden kann. Darüber hinaus kann besonders vorteilhaft eine Standzeit und/oder eine Dauerfestigkeit verbessert und/oder ein Verschleiß minimiert werden.Furthermore, a method for damping a handheld power tool, in particular an oscillation handheld power tool, is proposed as an example, the handheld power tool having a drive unit, at least one machine housing designed as an outer housing in which the drive unit is accommodated, at least one designed as a further outer housing and in a mounted state, in particular in a connection area, the coupling housing connected to the machine housing, which is provided for coupling to an energy storage unit, advantageously provided for supplying the drive unit, and has an electronics unit which is at least partially, preferably at least largely and particularly preferably completely, within the Coupling housing is arranged, wherein during operation of the drive unit, a transmission of vibrations and / or oscillations from the machine housing to the coupling housing is at least partially damped, in particular by means of a damping unit. In this way, in particular an efficiency, in particular a space efficiency, a component efficiency, a life efficiency, an environmental efficiency and / or a cost efficiency can be improved. In particular, vibration damping of an electronics unit and an energy storage unit can be achieved, whereby a service life of the electronics unit and the energy storage unit can advantageously be extended. In addition, vibrations and / or oscillations acting on a user can be reduced, whereby operating convenience can advantageously be increased. In addition, a service life and / or fatigue strength can particularly advantageously be improved and / or wear can be minimized.
Die Handwerkzeugmaschine und das Verfahren zur Dämpfung der Handwerkzeugmaschine sollen hierbei nicht auf die oben beschriebene Anwendung und Ausführungsform beschränkt sein. Insbesondere können die Handwerkzeugmaschine und das Verfahren zur Dämpfung der Handwerkzeugmaschine zu einer Erfüllung einer hierin beschriebenen Funktionsweise eine von einer hierin genannten Anzahl von einzelnen Elementen, Bauteilen und Einheiten abweichende Anzahl aufweisen.The handheld power tool and the method for damping the handheld power tool are not intended to be limited to the application and embodiment described above. In particular, the hand-held power tool and the method for damping the hand-held power tool can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned herein in order to fulfill a mode of operation described herein.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawings. An exemplary embodiment of the invention is shown in the drawing. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into useful further combinations.
Es zeigen:
- Fig. 1
- eine als Oszillationshandwerkzeugmaschine ausgebildete Handwerkzeugmaschine in einer Außenansicht,
- Fig. 2
- die Handwerkzeugmaschine in einer Teilexplosionsdarstellung,
- Fig. 3
- eine Detaildarstellung der Handwerkzeugmaschine,
- Fig. 4
- ein Längsschnitt durch einen Verbindungsbereich der Handwerkzeugmaschine und
- Fig. 5
- eine weitere Detaildarstellung der Handwerkzeugmaschine in der Schnittdarstellung aus
Figur 4 .
- Fig. 1
- a handheld power tool designed as an oscillating hand power tool in an external view,
- Fig. 2
- the hand machine tool in a partially exploded view,
- Fig. 3
- a detailed representation of the hand machine tool,
- Fig. 4
- a longitudinal section through a connection area of the handheld power tool and
- Fig. 5
- a further detailed illustration of the handheld power tool in the sectional illustration
Figure 4 .
Die Handwerkzeugmaschine 10 umfasst eine Gehäuseeinheit 46. Die Gehäuseeinheit 46 bildet ein Außengehäuse der Handwerkzeugmaschine 10. Innerhalb der Gehäuseeinheit 46 sind wenigstens ein Großteil der für einen Betrieb der Handwerkzeugmaschine 10 benötigten Bauteile angeordnet.The
Die Gehäuseeinheit 46 umfasst ein Maschinengehäuse 14. Das Maschinengehäuse 14 ist als Außengehäuse ausgebildet. Das Maschinengehäuse 14 bildet im vorliegenden Fall einen vorderen Teil der Handwerkzeugmaschine 10. Innerhalb des Maschinengehäuses 14 sind wenigstens ein Großteil der für einen Antrieb der Handwerkzeugmaschine 10 benötigten Bauteile angeordnet.The
Das Maschinengehäuse 14 ist ferner zumindest zweiteilig ausgebildet und umfasst zwei Maschinengehäuseteile 34, 36. Die Maschinengehäuseteile 34, 36 weisen eine Schalenbauweise auf. Die Maschinengehäuseteile 34, 36 sind als Gehäuseschalen ausgebildet. Die Maschinengehäuseteile 34, 36 sind voneinander trennbar ausgebildet. Im vorliegenden Fall sind die Maschinengehäuseteile 34, 36 in eine Trennrichtung 32 voneinander trennbar. Die Maschinengehäuseteile 34, 36 sind somit zu einem Trennen und/oder zu einem Verbinden in die Trennrichtung 32 bewegbar. Die Trennrichtung 32 ist im vorliegenden Fall senkrecht zu einer Bearbeitungsebene und/oder einem Untergrund ausgerichtet. Demnach weisen die Maschinengehäuseteile 34, 36 eine horizontale Trennungsebene auf.The
Darüber hinaus definiert das Maschinengehäuse 14 einen Griffbereich 40. Der Griffbereich 40 ist als Führungsgriffbereich ausgebildet. Der Griffbereich 40 ist auf einer einem Frontbereich zugewandten Seite der Handwerkzeugmaschine 10 angeordnet. Der Griffbereich 40 ist im vorliegenden Fall zumindest im Wesentlichen zu einem Führen der Handwerkzeugmaschine 10 vorgesehen. Prinzipiell könnte eine Trennrichtung jedoch auch parallel zu einer Bearbeitungsebene und/oder einem Untergrund ausgerichtet sein. Zudem könnte ein Maschinengehäuse dreiteilig und/oder vierteilig ausgebildet sein. Auch könnte ein Maschinengehäuse prinzipiell einstückig und/oder einteilig ausgebildet sein. Ferner könnte ein Maschinengehäuse und/oder wenigstens ein Maschinengehäuseteil auch eine Topfbauweise oder eine Kombination aus Schalenbauweise und Topfbauweise aufweisen. Zudem ist denkbar, dass ein Maschinengehäuse ein zusätzliches Griffelement zu einem Halten und/oder Führen einer Handwerkzeugmaschine aufweist und/oder, dass ein zusätzliches Griffelement zu einem Halten und/oder Führen der Handwerkzeugmaschine an dem Maschinengehäuse befestigbar ist.In addition, the
Darüber hinaus umfasst die Gehäuseeinheit 46 ein Kopplungsgehäuse 16. Das Kopplungsgehäuse 16 ist als Außengehäuse ausgebildet. Das Kopplungsgehäuse 16 ist separat von dem Maschinengehäuse 14 ausgebildet. Das Kopplungsgehäuse 16 bildet im vorliegenden Fall einen hinteren Teil der Handwerkzeugmaschine 10. Das Kopplungsgehäuse 16 ist zu einer Kopplung mit einer Energiespeichereinheit 18 vorgesehen. Dazu weist das Kopplungsgehäuse 16 eine Schnittstelle 48 zu einer Anbindung der, im vorliegenden Fall insbesondere als Akkupack ausgebildeten, Energiespeichereinheit 18 auf. Innerhalb des Kopplungsgehäuses 16 sind zudem wenigstens ein Großteil der für einen Betrieb der Energiespeichereinheit 18 benötigten Bauteile angeordnet.In addition, the
Das Kopplungsgehäuse 16 ist in einem montierten Zustand mit dem Maschinengehäuse 14 verbunden. Im vorliegenden Fall ist das Kopplungsgehäuse 16 dabei in einem, im vorliegenden Fall insbesondere zumindest im Wesentlichen zentral bezüglich der Handwerkzeugmaschine 10 angeordneten, Verbindungsbereich 24 mit dem Maschinengehäuse 14 verbunden. In dem Verbindungsbereich 24 umgreift das Kopplungsgehäuse 16 das Maschinengehäuse 14 vollständig.The
Das Kopplungsgehäuse 16 ist ferner zumindest zweiteilig ausgebildet und umfasst zwei Kopplungsgehäuseteile 26, 28 (vgl. auch
Darüber hinaus definiert das Kopplungsgehäuse 16 einen weiteren Griffbereich 38. Der weitere Griffbereich 38 ist als Hauptgriffbereich ausgebildet. Der weitere Griffbereich 38 ist auf einer dem Frontbereich abgewandten Seite der Handwerkzeugmaschine 10 angeordnet. Der weitere Griffbereich 38 ist im vorliegenden Fall zumindest im Wesentlichen zu einem Halten der Handwerkzeugmaschine 10 vorgesehen. Prinzipiell könnte eine weitere Trennrichtung jedoch auch senkrecht zu einer Bearbeitungsebene und/oder einem Untergrund ausgerichtet sein. Zudem könnte ein Kopplungsgehäuse dreiteilig und/oder vierteilig ausgebildet sein. Auch könnte ein Kopplungsgehäuse prinzipiell einstückig und/oder einteilig ausgebildet sein. Ferner könnte ein Kopplungsgehäuse und/oder wenigstens ein Kopplungsgehäuseteil auch eine Topfbauweise oder eine Kombination aus Schalenbauweise und Topfbauweise aufweisen. Zudem ist denkbar, dass ein Kopplungsgehäuse ein zusätzliches Griffelement zu einem Halten und/oder Führen einer Handwerkzeugmaschine aufweist und/oder, dass ein zusätzliches Griffelement zu einem Halten und/oder Führen der Handwerkzeugmaschine an dem Kopplungsgehäuse befestigbar ist.In addition, the
Insbesondere um eine Montage des Kopplungsgehäuses 16 an dem Maschinengehäuse 14 zu vereinfachen, umfasst die Handwerkzeugmaschine 10 zudem wenigstens ein Ausrichtelement 44 (vgl. insbesondere
Im montierten Zustand sind die Ausrichtelemente 44 kraft- und/oder formschlüssig mit dem Maschinengehäuse 14 verbunden. Im vorliegenden Fall sind die Ausrichtelemente 44 im montierten Zustand mittels einer Klemmverbindung mit dem Maschinengehäuse 14 verbunden.In the assembled state, the
Zudem sind die Ausrichtelemente 44 im montierten Zustand kraft- und/oder formschlüssig mit dem Kopplungsgehäuse 16 verbunden. Im vorliegenden Fall sind die Ausrichtelemente 44 im montierten Zustand mittels einer Schraubverbindung mit dem Kopplungsgehäuse 16 verbunden. Dazu umfasst jedes der Ausrichtelemente 44 ein Innengewinde, welches zur Aufnahme eines Schraubverbindungselements 66 dient. Die Ausrichtelemente 44 sind somit zu einer Befestigung des Kopplungsgehäuses 16 an dem Maschinengehäuse 14 vorgesehen.In addition, the
Ferner sind die Ausrichtelemente 44 im montierten Zustand derart ausgerichtet, dass eine jeweilige Haupterstreckungsrichtung der Ausrichtelemente 44 parallel zu der weiteren Trennrichtung 30 ist. Darüber hinaus sind die Ausrichtelemente 44 in die Trennrichtung 32 versetzt zueinander angeordnet. Alternativ könnte eine Handwerkzeugmaschine auch genau ein Ausrichtelement und/oder mehrere, insbesondere zumindest drei, zumindest vier und/oder zumindest fünf, Ausrichtelemente umfassen. Ferner könnte wenigstens ein Ausrichtelement auch aus Kunststoff bestehen. Zudem kann wenigstens ein Ausrichtelement einstückig mit einem Maschinengehäuse und/oder einem Kopplungsgehäuse ausgebildet sein. Zudem ist denkbar, wenigstens ein Ausrichtelement als Vollelement und/oder Vollprofil auszubilden.Furthermore, in the assembled state, the
Die Handwerkzeugmaschine 10 weist ferner eine Bearbeitungseinheit 50 auf (vgl.
Zum Antrieb und/oder Betrieb der Bearbeitungseinheit 50 umfasst die Handwerkzeugmaschine 10 eine Antriebseinheit 12. Die Antriebseinheit 12 ist innerhalb des Maschinengehäuses 14 angeordnet. Die Antriebseinheit 12 umfasst einen Motor 60, im vorliegenden Fall insbesondere einen Elektromotor. Die Antriebseinheit 12 umfasst ferner ein Getriebe 62, im vorliegenden Fall insbesondere ein Oszillationsgetriebe. Zudem steht die Antriebseinheit 12 in Wirkverbindung mit der Bearbeitungseinheit 50. Die Antriebseinheit 12 ist dazu vorgesehen, die Bearbeitungseinheit 50 oszillierend, insbesondere in einer hin und her Bewegung über einen definierten Winkelbereich, anzutreiben. Alternativ ist denkbar, einen Motor einer Antriebseinheit als Verbrennungsmotor und/oder Hybridmotor auszubilden. Auch könnte ein Getriebe grundsätzlich von einem Oszillationsgetriebe verschieden sein.To drive and / or operate the
Die Handwerkzeugmaschine 10 umfasst zudem eine Elektronikeinheit 20. Die Elektronikeinheit 20 ist als elektrische und/oder elektronische Einheit ausgebildet. Im vorliegenden Fall ist die Elektronikeinheit 20 als Elektronikplatine ausgebildet. Die Elektronikeinheit 20 ist vollständig in dem Kopplungsgehäuse 16 angeordnet. Die Elektronikeinheit 20 ist als Steuerelektronik ausgebildet. Die Elektronikeinheit 20 ist im vorliegenden Fall als Steuerelektronik für die Energiespeichereinheit 18 ausgebildet und insbesondere zu einer Steuerung eines Betriebs und/oder einer Versorgung der Energiespeichereinheit 18 vorgesehen. Demnach weist die Elektronikeinheit 20 in zumindest einem Betriebszustand eine elektrische Verbindung mit der Energiespeichereinheit 18 auf. Alternativ oder zusätzlich könnte eine Elektronikeinheit jedoch auch als Steuerelektronik für eine Antriebseinheit und/oder als Auswerteelektronik ausgebildet sein.The
Bei einem Betrieb der Antriebseinheit 12 werden nun, insbesondere aufgrund der Oszillationsbewegung der Bearbeitungseinheit 50 und/oder der Antriebseinheit 12, Vibrationen und/oder Schwingungen auf das Maschinengehäuse 14 übertragen. Insbesondere um eine Übertragung dieser Vibrationen und/oder Schwingungen auf das Kopplungsgehäuse 16 zumindest teilweise abzuschwächen, wodurch die Elektronikeinheit 20 und die Energiespeichereinheit 18 geschützt werden, umfasst die Handwerkzeugmaschine 10 eine Dämpfungseinheit 22 (vgl. insbesondere
Dazu umfasst die Dämpfungseinheit 22 zumindest ein Dämpfungselement 42. Im vorliegenden Fall umfasst die Dämpfungseinheit 22 vier Dämpfungselemente 42, wobei insbesondere in den
Die Dämpfungselemente 42 sind darüber hinaus flexibel ausgebildet. Die Dämpfungselemente 42 sind verformbar ausgebildet. Die Dämpfungselemente 42 sind elastisch ausgebildet und bestehen vollständig aus einem elastischen Material. Die Dämpfungselemente 42 bestehen aus einem dämpfungsfähigen Material. Im vorliegenden Fall bestehen die Dämpfungselemente 42 aus Gummi.The damping
In einem montierten Zustand kontaktieren die Dämpfungselemente 42 das Maschinengehäuse 14, das Kopplungsgehäuse 16 und zumindest eines der Ausrichtelemente 44 unmittelbar. Dabei sind jeweils zwei der Dämpfungselemente 42 bezüglich der weiteren Trennrichtung 30 auf gegenüberliegenden Seiten der Handwerkzeugmaschine 10 angeordnet. Die Dämpfungselemente 42 sind vollständig innerhalb des Kopplungsgehäuses 16 angeordnet. Die Dämpfungselemente 42 sind zwischen einer Innenseite des Kopplungsgehäuses 16 und einer Außenseite des Maschinengehäuses 14 angeordnet, insbesondere eingeklemmt. Im vorliegenden Fall weist das Maschinengehäuse 14 dabei mehrere, im vorliegenden Fall insbesondere vier, zu den Dämpfungselementen 42 korrespondierende Aufnahmevertiefungen 64 auf, wobei im montierten Zustand in jeder der Aufnahmevertiefungen 64 eines der Dämpfungselemente 42 angeordnet ist (vgl. insbesondere
Im Folgenden wird nun unter Verweis auf die
Das Dämpfungselement 42 ist in einer der Aufnahmevertiefungen 64 des Maschinengehäuses 14 angeordnet. Dabei kontaktiert eine erste Deckfläche 68 des Dämpfungselements 42 das Maschinengehäuse 14. Zudem kontaktiert eine Außenseitenfläche 70 des Dämpfungselements 42 das Maschinengehäuse 14. Im vorliegenden Fall kontaktiert die Außenseitenfläche 70 des Dämpfungselements 42 das Maschinengehäuse 14 zumindest über einen Teil einer gesamten Erstreckung des Dämpfungselements 42.The damping
Ferner umgreift das Dämpfungselement 42 eines der Ausrichtelemente 44 vollständig. Dabei kontaktiert eine Innenseitenfläche 72 des Dämpfungselements 42 das Ausrichtelement 44. Im vorliegenden Fall kontaktiert die Innenseitenfläche 72 des Dämpfungselements 42 das Ausrichtelement 44 über eine gesamte Erstreckung des Dämpfungselements 42.Furthermore, the damping
Darüber hinaus kontaktiert eine, insbesondere der ersten Deckfläche 68 gegenüberliegende, zweite Deckfläche 74 des Dämpfungselements 42 das Kopplungsgehäuse 16.In addition, a
Alternativ könnte eine Dämpfungseinheit auch eine andere Anzahl an Dämpfungselementen aufweisen, wie beispielsweise genau ein Dämpfungselement und/oder zwei Dämpfungselemente und/oder zumindest sechs Dämpfungselemente. Auch könnte wenigstens ein Dämpfungselement eine von einem Zylinder abweichende Form aufweisen und beispielsweise kegelstumpfförmig ausgebildet sein. Ferner könnte wenigstens ein Dämpfungselement prinzipiell auch aus Silikon und/oder einem Thermoplasten bestehen.Alternatively, a damping unit could also have a different number of damping elements, such as precisely one damping element and / or two damping elements and / or at least six damping elements. At least one damping element could also have a shape deviating from a cylinder and, for example, be designed in the shape of a truncated cone. Furthermore, at least one damping element could in principle also consist of silicone and / or a thermoplastic.
Claims (9)
- Portable power tool (10), in particular oscillating portable power tool, having a drive unit (12), having at least one machine housing (14) in the form of an external housing, in which the drive unit (12) is accommodated, having at least one coupling housing (16), which is in the form of a further external housing, is connected, in a mounted state, to the machine housing (14), and is intended for coupling to an energy storage unit (18), having an electronic unit (20), which is arranged at least partially within the coupling housing (16), having a damping unit (22), which, during operation of the drive unit (12), at least partially damps transmission of vibrations and/or oscillations from the machine housing (14) to the coupling housing (16), and having at least one orienting element (44), which, in the mounted state, is connected to the coupling housing (16) in a force- and/or form-fitting manner, characterized in that the damping unit (22) comprises at least one damping element (42), wherein the damping element (42) is formed in a cylindrical, in particular circular cylindrical manner, wherein the damping element (42) is in direct contact with the machine housing (14), the coupling housing (16) and at least one of the orienting elements (44).
- Portable power tool (10) according to Claim 1, characterized in that the electronic unit (20) is in the form of control electronics for the energy storage unit (18).
- Portable power tool (10) according to Claim 1 or 2, characterized in that the coupling housing (16) engages at least partially around the machine housing (14) in a connecting region (24).
- Portable power tool (10) according to one of the preceding claims, characterized in that the coupling housing (16) has at least two coupling housing parts (26, 28) that are separable from one another.
- Portable power tool (10) according to one of the preceding claims, characterized in that the coupling housing (16) has at least two coupling housing parts (26, 28) that are separable from one another in a first separating direction (30), and the machine housing (14) has at least two machine housing parts (34, 36) that are separable from one another in a second separating direction (32) different from the first separating direction (30).
- Portable power tool (10) according to one of the preceding claims, characterized in that the coupling housing (16) defines at least one gripping region (38) .
- Portable power tool (10) according to one of the preceding claims, characterized in that the machine housing (14) defines at least one further gripping region (40).
- Portable power tool (10) according to one of the preceding claims, characterized in that the damping unit (22) comprises at least one damping element (42), which is formed at least substantially in a cylindrical manner.
- Portable power tool (10) according to one of the preceding claims, characterized by at least one orienting element (44) which is formed separately from the machine housing (14) and the coupling housing (16) and is intended, when the machine housing (14) and the coupling housing (16) are connected, to orient the machine housing (14) and the coupling housing (16) relative to one another.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016215660.8A DE102016215660A1 (en) | 2016-08-22 | 2016-08-22 | Hand tool and method for damping a hand tool |
PCT/EP2017/067977 WO2018036720A1 (en) | 2016-08-22 | 2017-07-17 | Hand-held power tool and method for damping a hand-held power tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3500405A1 EP3500405A1 (en) | 2019-06-26 |
EP3500405B1 true EP3500405B1 (en) | 2020-12-16 |
Family
ID=59409319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17745148.1A Active EP3500405B1 (en) | 2016-08-22 | 2017-07-17 | Hand-held power tool and method for damping a hand-held power tool |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3500405B1 (en) |
CN (1) | CN109863001B (en) |
DE (1) | DE102016215660A1 (en) |
WO (1) | WO2018036720A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022246220A1 (en) * | 2021-05-21 | 2022-11-24 | Milwaukee Electric Tool Corporation | Oscillating multi-tool |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11890740B2 (en) | 2021-06-09 | 2024-02-06 | Black & Decker Inc. | Battery pack isolation system |
DE102019212302A1 (en) * | 2019-08-16 | 2021-02-18 | Robert Bosch Gmbh | Processing tool, in particular oscillation processing tool |
DE202019106967U1 (en) * | 2019-12-13 | 2021-03-16 | C. & E. Fein Gmbh | Electric hand tool |
DE202019106969U1 (en) | 2019-12-13 | 2021-03-16 | C. & E. Fein Gmbh | Electric hand tool |
EP3943251A1 (en) * | 2020-07-22 | 2022-01-26 | Hilti Aktiengesellschaft | Shock absorber device for a battery |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2749381A1 (en) * | 2012-12-25 | 2014-07-02 | Makita Corporation | Impact tool |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4575223B2 (en) * | 2005-04-20 | 2010-11-04 | 株式会社マキタ | Rotating tool |
JP4977533B2 (en) | 2007-06-07 | 2012-07-18 | 株式会社マキタ | Portable electric tool |
DE102007028382A1 (en) * | 2007-06-20 | 2008-12-24 | Robert Bosch Gmbh | Hand tool housing unit |
DE102009002982A1 (en) * | 2009-05-11 | 2010-11-18 | Robert Bosch Gmbh | Hand tool machine, in particular electric hand tool machine |
DE202012100274U1 (en) * | 2012-01-26 | 2012-03-15 | Einhell Germany Ag | Hand tool |
DE102012212066A1 (en) * | 2012-07-11 | 2014-01-16 | Robert Bosch Gmbh | Portable machine tool |
DE102012214257A1 (en) * | 2012-08-10 | 2014-02-13 | Robert Bosch Gmbh | Electric power tool e.g. angle grinder has primary resilient damping element that is mechanically coupled with secondary resilient damping element which is elastically deformed in axial direction of motor case |
CN104139381B (en) | 2013-05-06 | 2017-01-11 | 米沃奇电动工具公司 | Power tool including a battery pack isolation system |
DE102014103856A1 (en) | 2014-03-20 | 2015-09-24 | C. & E. Fein Gmbh | Hand tool with an outer housing and an inner housing |
-
2016
- 2016-08-22 DE DE102016215660.8A patent/DE102016215660A1/en not_active Withdrawn
-
2017
- 2017-07-17 EP EP17745148.1A patent/EP3500405B1/en active Active
- 2017-07-17 WO PCT/EP2017/067977 patent/WO2018036720A1/en active Application Filing
- 2017-07-17 CN CN201780065221.9A patent/CN109863001B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2749381A1 (en) * | 2012-12-25 | 2014-07-02 | Makita Corporation | Impact tool |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022246220A1 (en) * | 2021-05-21 | 2022-11-24 | Milwaukee Electric Tool Corporation | Oscillating multi-tool |
Also Published As
Publication number | Publication date |
---|---|
WO2018036720A1 (en) | 2018-03-01 |
CN109863001B (en) | 2022-08-02 |
CN109863001A (en) | 2019-06-07 |
EP3500405A1 (en) | 2019-06-26 |
DE102016215660A1 (en) | 2018-02-22 |
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