Reciprocating saw device and reciprocating saw

Abstract

The invention relates to a reciprocating saw device (10) having a drive unit (12) and a housing (14) for receiving the drive unit (12). According to the invention, the reciprocating saw device (10) has a damping unit (16) for vibration decoupling of the housing (14) from the drive unit (12), the damping unit (16) connecting the housing (14) to the drive unit (12).

Description

Technical Field

[0001] The invention relates to a reciprocating saw device and a reciprocating saw. Background Art

[0002] A reciprocating saw device has been proposed having a drive unit and a housing for receiving the drive unit. Summary of the invention

[0003] The invention is based on a reciprocating saw device having a drive unit and a housing for receiving the drive unit.

[0004] It is proposed that the reciprocating saw device has a damping unit for vibration-decoupling the housing from the drive unit, wherein the damping unit connects the housing to the drive unit. A particularly high user comfort can be achieved by the configuration of the reciprocating saw device according to the invention. The operator can be protected particularly effectively from vibrations of the drive unit. A particularly comfortable guidance and / or use of the reciprocating saw device can be achieved. A particularly compact reciprocating saw device can advantageously be provided. Advantageously, a particularly extensive vibration decoupling can be achieved with particularly little effort and / or low cost. The use of complex mechanical anti-oscillators can be omitted, thereby saving costs and / or structural space in particular.

[0005] The reciprocating saw device is in particular at least a part of a reciprocating saw. In particular, the reciprocating saw device can also include the entire reciprocating saw. The reciprocating saw is preferably configured as a portable, in particular a handheld machine tool. The reciprocating saw is preferably configured as a crescent saw. Alternatively, it is conceivable that the reciprocating saw is configured as a jigsaw or other reciprocating saws that appear meaningful to a person skilled in the art. It is conceivable that the reciprocating saw, in particular the reciprocating saw device, preferably the drive unit has a swinging reciprocating function that can preferably be turned on and off.

[0006] The housing preferably has at least one handle. In particular, the housing has all gripping areas of a reciprocating saw device, preferably a reciprocating saw. Preferably, the housing has two housing shells. The drive unit is preferably arranged between the housing shells.

[0007] The drive unit preferably has a drive train, preferably a reciprocating saw device, in particular the entire drive train of a reciprocating saw. The drive unit preferably has at least one motor, such as an electric motor or the like. The drive unit preferably has a transmission unit, in particular a reciprocating saw device, preferably the entire transmission unit of a reciprocating saw. The drive unit preferably has a tool receptacle. The tool receptacle is particularly configured to receive a tool, such as a saw blade. The drive unit, preferably the motor, is particularly configured to drive a tool fixed to the tool receptacle. The transmission unit is particularly configured to transmit a driving force that can be generated by the motor to a tool fixed to the tool receptacle.

[0008] “Set” is to be understood as specifically setting, specifically designing and / or specifically equipping. An object being set for a certain function is to be understood as the object fulfilling and / or carrying out the certain function in at least one application and / or operating state.

[0009] In particular, the drive unit comprises a guide unit, in particular a reciprocating saw device, preferably the entire guide unit of a reciprocating saw. The guide unit has, for example, one or more guide plates and / or one or more base plates or the like, which are particularly configured to guide a tool, preferably a reciprocating saw device, when machining a workpiece. The guide device is configured to be in contact with the workpiece, in particular when machining the workpiece with the aid of a reciprocating saw device, preferably a tool, in particular for guiding during machining. It is conceivable that the tool is part of the drive unit. The tool can preferably be replaceably fixed to the tool receptacle.

[0010] Preferably, the drive unit is a continuous assembly. In particular, the guide unit, the tool receiving part, the motor and the transmission unit are a continuous assembly.

[0011] The damping unit has in particular at least one damping element, preferably a plurality of damping elements. At least one damping element is in particular configured as an elastic element, preferably composed of elastic plastic. It is conceivable that the damping element can in particular at least be composed of rubber, foam and / or elastomer, preferably polyurethane and / or foam rubber. "Elastic element" is in particular understood as an element that can be deformed repeatedly without being mechanically damaged or destroyed, and in particular tends to return to its basic shape autonomously and / or independently after deformation. At least one damping element can be configured as a cuboid, a cube, a ring, a ring segment, a plate, a prism, a cone, a column or other shapes that seem meaningful to a person skilled in the art. The "at least substantially plate-shaped" configuration of an object should in particular be understood as at least as small a geometric cuboid as possible, which only just completely surrounds the object. The object is to be understood as being "plate-shaped" as a spatial object which, when viewed in a plane, has a non-circular cross section in a cross section perpendicular to the plane and has a material thickness perpendicular to the plane, which is at least substantially constant, and which is less than 50%, preferably less than 25%, and particularly preferably less than 10% of the surface extension of the spatial element parallel to the plane, in particular of the smallest surface extension of the element parallel to the plane. The drive unit is preferably connected to the housing via at least one damping element. The damping unit is particularly provided for decoupling the housing from oscillations of the drive unit, in particular for vibration decoupling. The housing is preferably connected to the drive unit only via the damping unit, in particular at least one damping element.

[0012] The housing preferably has at least one damping element receiving portion for receiving at least one damping element. It is conceivable that the damping elements at least partially have different hardnesses. It is also conceivable that the damping elements at least partially have the same hardness.

[0013] It is further proposed that the housing is arranged spaced apart from the drive unit. Advantageously, a particularly effective vibration decoupling of the housing from the drive unit is achieved. The operator can be protected particularly effectively from vibrations of the drive unit. A reciprocating saw device with particularly high operating comfort can be provided. In particular, the housing is not in direct contact with the drive unit.

[0014] In addition, it is proposed that the damping unit has at least two damping elements, in particular two of the above-mentioned damping elements, wherein the saw plane intersects the two damping elements. Advantageously, the vibration decoupling of the housing and the drive unit can be achieved, while the drive unit is particularly effectively supported on the housing unit by the damping unit. The reciprocating saw device can be particularly accurately and / or effectively guided by the operator while being particularly effectively decoupled from the vibration. The drive unit, preferably the transmission device, has a reciprocating shaft. The reciprocating shaft is preferably a transmission element, by means of which a movement of a tool arranged on the tool receiving portion can be generated, in particular a reciprocating movement. The reciprocating saw device has a sawing direction in particular. The sawing direction preferably extends at least substantially perpendicular to the reciprocating shaft, in particular the axis of motion of the reciprocating shaft. "Substantially perpendicular" can be understood as an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular when viewed in the projection plane, enclose an angle of 90°, and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5°, and in particular advantageously less than 2°. The axis of motion of the reciprocating shaft preferably extends at least substantially parallel to the reciprocating axis of the tool. "Substantially parallel" is to be understood here as an orientation of a direction relative to a reference direction, in particular an orientation in a plane, wherein the direction has a deviation from the reference direction of in particular less than 8°, advantageously less than 5°, particularly advantageously less than 2°. The sawing direction corresponds in particular to the direction in which the workpiece is sawed when machining the workpiece by means of a reciprocating saw device, preferably a reciprocating saw. The sawing plane is preferably defined by the sawing direction and the axis of motion of the reciprocating shaft, in particular the reciprocating shaft.

[0015] It is further proposed that the damping unit has at least one damping element, in particular a damping element of the above-mentioned damping element, which is designed to be arranged at least in a reciprocating shaft of the drive unit, in particular in the vicinity of the above-mentioned reciprocating shaft, in particular in the vicinity of the above-mentioned axis of motion. Advantageously, a vibration decoupling of the housing from the drive unit can be achieved, while the drive unit can be supported particularly effectively on the housing unit by the damping unit. Advantageously, at least during the operation of the reciprocating saw device, the main operating forces can be effectively supported. "Nearby area" is to be understood in particular as an area with a maximum distance to a reference element, a reference axis or a reference point, in particular the axis of motion of the reciprocating shaft, which distance is preferably less than 2 cm, advantageously less than 1 cm. Preferably, the axis of motion intersects at least one damping element.

[0016] It is further proposed that the damping unit has at least one damping element, in particular a further damping element of the plurality of damping elements, which is arranged between the reciprocating shaft of the drive unit and the housing, in particular as viewed in a direction perpendicular to the sawing plane. Advantageously, a vibration decoupling of the housing from the drive unit can be achieved, while at the same time the drive unit can be supported particularly effectively on the housing unit by the damping unit. Advantageously, at least during operation of the reciprocating saw device, the main operating forces can be effectively supported.

[0017] It is further proposed that the damping element, in particular the further damping element, is arranged on the side of the reciprocating shaft facing away from the reciprocating shaft, in particular the reciprocating shaft. Advantageously, a vibration decoupling of the housing and the drive unit can be achieved, while the drive unit can be supported particularly effectively on the housing unit by the damping unit. Advantageously, at least during operation of the reciprocating saw device, the main operating forces can be effectively supported.

[0018] In addition, it is proposed that the damping unit has at least one damping element, in particular an additional damping element among the above-mentioned multiple damping elements, for avoiding cooling air backflow, and the additional damping element at least substantially completely seals the gap between the drive unit and the housing in the circumferential direction of the drive unit. Advantageously, the housing can be coupled to the drive unit particularly effectively, and the drive unit, in particular the motor, can be cooled particularly effectively. A particularly high operator comfort can be advantageously achieved. A particularly durable reciprocating saw device can be provided. Overheating of the drive unit can be resisted. "An object at least substantially completely seals the gap" should be understood in particular that the object fills at least 90%, preferably at least 95%, and particularly preferably at least 99% of the gap. The damping element, in particular the additional damping element, particularly preferably completely seals the gap between the drive unit and the housing. In particular, the damping element, preferably the additional damping element, completely fills the gap between the drive unit and the housing in the circumferential direction of the drive unit. The drive unit preferably has a motor housing for receiving the motor. The motor housing preferably has a cooling air inlet. The motor housing preferably has a cooling air outlet. Preferably, at least one damping element, in particular an additional damping element, at least substantially completely seals the gap between the motor housing and the housing in the circumferential direction of the motor housing. The drive unit, in particular the motor, preferably has a drive shaft. The circumferential direction of the drive unit, preferably the motor housing, extends in particular in a plane perpendicular to the drive shaft. The reciprocating saw device, in particular the drive unit, preferably has a fan unit for generating a cooling air flow to at least cool the drive unit, in particular the motor. The fan unit has, for example, at least one fan impeller. The drive unit is preferably configured to drive the fan unit, in particular at least one fan impeller, preferably around the drive shaft. The damping element is preferably constructed in an annular shape to avoid cooling air backflow. However, it is also conceivable that the damping unit has a plurality of damping elements, in particular damping elements arranged adjacent to each other, preferably constructed in the shape of a circular ring segment, in order to avoid cooling air backflow. In order to avoid cooling air backflow, the density of the damping element, in particular the additional damping element, preferably has at least 200 kg / m 3 To avoid cooling air backflow, the density of the damping element, in particular the additional damping element, preferably has a value of at most 400 kg / m 3 However, it is also conceivable that, in order to avoid cooling air backflow, the density of the damping element, in particular the additional damping element, has a value of less than 200 kg / m 3 Or more than 400kg / m 3 The value of .

[0019] It is further proposed that the damping unit has at least one damping element, in particular at least one damping element of the above-mentioned damping element, which has at least one form-locking element, which is arranged for form locking with a corresponding mating form-locking element on the drive unit. A reliable fixation of the at least one damping element can be achieved, advantageously in a particularly simple manner in terms of structural design and / or assembly technology. Preferably, at least one form-locking element is configured as a notch. Alternatively, it is conceivable that at least one form-locking element is configured as a raised portion. Preferably, at least one mating form-locking element is configured as a raised portion. Alternatively, it is conceivable that at least one mating form-locking element is configured as a notch. Additionally, it is conceivable that at least one damping element has an adhesive film or the like for fixing to the drive unit. Alternatively or additionally, it is conceivable that the drive unit has an adhesive film or the like for fixing at least one damping element.

[0020] It is further proposed that the damping unit has at least one damping element, in particular one of the above-mentioned damping elements, which has at least one shear force transmission surface. Advantageously, particularly precise guidance can be achieved while at the same time achieving effective vibration damping. Preferably, the shear force transmission surface is formed by a form-fitting element, in particular by a surface of a form-fitting element of the corresponding damping element which delimits the form-fitting element as a notch. Shear forces can preferably be transmitted via the form-fitting element and the mating form-fitting element. Alternatively, it is conceivable that at least one damping element has a shear force transmission surface which is formed separately from the form-fitting element.

[0021] It is further proposed that the damping unit has at least one damping element, in particular at least one additional damping element of the above-mentioned damping elements, which is arranged, in particular with respect to the sawing plane, in particular on the side of the above-mentioned sawing plane, on a reciprocating axis of the drive unit, in particular on the side of the above-mentioned reciprocating axis. A particularly stable orientation of the drive unit on the housing can be achieved. Advantageously, forces exerted on the housing can be transmitted particularly precisely to the drive unit, in particular to the tool, in order to guide it in a plurality of different directions. Advantageously, a particularly high level of operating comfort and / or a particularly precise tool guidance can be achieved. The damping element, in particular the additional damping element, is preferably arranged at a distance from the sawing plane.

[0022] In addition, a reciprocating saw, in particular the above-mentioned reciprocating saw, in particular a crescent saw, is proposed, having a reciprocating saw device according to the invention. A particularly high user comfort can be achieved by the configuration of the reciprocating saw according to the invention. The operator can be protected from vibrations of the drive unit particularly effectively. A particularly comfortable guidance and / or use of the reciprocating saw can be achieved. A particularly compact reciprocating saw can advantageously be provided. Advantageously, a particularly extensive vibration decoupling can be achieved with particularly little effort and / or low cost. The use of complex mechanical anti-oscillators can be omitted, thereby saving costs and / or structural space in particular. The reciprocating saw is preferably configured to be able to be operated with one hand, in particular for one-hand operation. Alternatively or additionally, it is conceivable that the reciprocating saw is configured to be able to be operated with both hands, in particular for two-hand operation. The reciprocating saw is configured as a battery-operated reciprocating saw or a cable-connected reciprocating saw.

[0023] The reciprocating saw device and / or reciprocating saw according to the invention are not to be limited to the applications and embodiments described above. The reciprocating saw device and / or reciprocating saw according to the invention can have numbers that deviate from the numbers of individual elements, components and units described herein, in particular in order to meet the working method described herein. In addition, in the value ranges given in the present disclosure, the values ​​that lie within the stated extreme values ​​are also to be regarded as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Further advantages are apparent from the following description of the drawings. Embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain features in a plurality of combinations. A person skilled in the art may also consider the features individually and combine them into other meaningful combinations.

[0025] The accompanying drawings show:

[0026] Figure 1 : A side view of a reciprocating saw according to the present invention,

[0027] Figure 2 : Figure 1 Cross-sectional view of a reciprocating saw,

[0028] Figure 3 : Figure 1 and Figure 2 A perspective view of a reciprocating saw without a housing,

[0029] Figure 4 : A partial perspective view of a portion of a reciprocating saw,

[0030] Figure 5 : Another stereoscopic view of a reciprocating saw, and

[0031] Figure 6 : A perspective view of a portion of a housing of a reciprocating saw. DETAILED DESCRIPTION

[0032] Figure 1 A reciprocating saw 46 with a reciprocating saw device 10 is shown. The reciprocating saw 46 is configured as a portable, in particular a handheld machine tool. The reciprocating saw 46 is configured as a crescent saw. Alternatively, it is conceivable that the reciprocating saw 46 is configured as a jigsaw or other reciprocating saws 46 that appear meaningful to a person skilled in the art. It is conceivable that the reciprocating saw 46, in particular the reciprocating saw device 10, has a swinging reciprocating function that is preferably openable and closable. The reciprocating saw 46 shown here as an example can be operated with one hand. Alternatively or additionally, it is conceivable that the reciprocating saw 46 can be operated with two hands. The reciprocating saw 46 is configured as a battery-operated reciprocating saw 46. Alternatively, it is conceivable that the reciprocating saw 46 is configured as a cable-connected reciprocating saw 46.

[0033] The reciprocating saw device 10 has a drive unit 12 (see Figure 2 ). The drive unit 12 has a drive train 48, preferably the entire drive train 48 of the reciprocating saw device 10, in particular the reciprocating saw 46. The drive unit 12 has at least one motor 50, for example an electric motor or the like. The drive unit 12 has a transmission unit 52, in particular the entire transmission unit 52 of the reciprocating saw device 10, preferably the reciprocating saw 46. The drive unit 12 has a tool receiving portion 54. The tool receiving portion 54 is configured to receive a tool (not shown here). The tool is configured, for example, as a saw blade. The drive unit 12 is configured to drive a tool fixed to the tool receiving portion 54.

[0034] The drive unit 12 comprises a guide unit 56, in particular the entire guide unit 56 of the reciprocating saw device 10, preferably the reciprocating saw 46. The guide unit 56 here has a guide plate 58 by way of example. Alternatively or additionally, it is conceivable that the guide unit 56 has a plurality of guide plates 58 and / or one or more base plates or the like, which are particularly provided for guiding a tool, preferably a reciprocating saw device 10, when machining a workpiece. When machining a workpiece with the aid of the reciprocating saw device 10, preferably a tool, the guide device 56 is provided for contacting the workpiece, in particular for guiding during machining. It is conceivable that the tool is part of the drive unit 12. The tool can be replaceably fixed to the tool receiving portion 54.

[0035] The drive unit 12 is a continuous assembly. The guide unit 56, the tool receiving portion 54, the motor 50 and the transmission unit 52 are a continuous assembly.

[0036] The reciprocating saw device 10 has a housing 14 for receiving a drive unit 12. The housing 14 has at least one handle 76. The housing 14 has in particular all gripping regions 82, 10 of a reciprocating saw device 80, preferably a reciprocating saw 46. One of the gripping regions 80, 82 is arranged on the handle 76. The other gripping region 82 is arranged on the surface of the housing 14, and the motor 50 and / or the transmission unit 52 are arranged on the side facing away from the housing, in particular on the inner side of the housing 14.

[0037] The housing 14 has two housing shells 78 (only one housing shell 78 is provided with a reference numeral in the figure). The drive unit 12 is arranged between the housing shells 78. The reciprocating saw device 10 has a switch 84 for actuating the drive unit 12. The switch 84 is arranged on the handle 76.

[0038] The reciprocating saw device 10 has a damping unit 16 for vibration-decoupling the housing 14 from the drive unit 12. The damping unit 16 here has, by way of example, a plurality of damping elements 18, 20, 22, 24, 42, 44. The damping elements 18, 20, 22, 24, 42, 44 are configured as elastic elements, preferably made of an elastic material, in particular an elastic plastic. The damping elements 18, 20, 22, 24, 42, 44 can in particular at least be made of rubber, foam and / or elastomer, preferably polyurethane and / or foam rubber.

[0039] Damping elements 18 , 20 , 22 , 24 , 42 , 44 may be designed as cuboids, cubes, rings, ring segments, plates, prisms, cones, cylinders or in another shape that appears appropriate to a person skilled in the art.

[0040] The drive unit 12 is connected to the housing 14 via damping elements 18, 20, 22, 24, 42, 44. The damping unit 16 connects the housing 14 to the drive unit 12. The damping unit 16 is provided for decoupling the housing 14 from oscillations of the drive unit 12, preferably for vibration decoupling. The housing 14 is connected to the drive unit 12 only via the damping unit 16, in particular the damping elements 18, 20, 22, 24, 42, 44. The housing 14 is arranged at a distance from the drive unit 12. The housing 14 is not in direct contact with the drive unit 12.

[0041] The sawing plane 26 intersects at least two of the damping elements 18, 20, 22, 24, 24, here by way of example four damping elements 18, 20, 22, 24, 42, 44. The drive unit 12 has a reciprocating shaft 30. The reciprocating shaft 30 is a transmission element by means of which a movement, in particular a reciprocating movement, of a tool arranged on the tool holder 54 can be generated. The reciprocating saw device 10 has a sawing direction 32. The sawing direction 32 is at least substantially perpendicular to the reciprocating shaft 30, in particular to the movement axis 28 of the reciprocating shaft 30.

[0042] The movement axis 28 of the reciprocating shaft 30 is at least substantially parallel to the reciprocating movement axis 60 of the reciprocating movement of the tool. The sawing direction 32 corresponds to the direction of sawing the workpiece. The sawing plane 26 is defined by the sawing direction 32 and the reciprocating shaft 30, in particular the movement axis 28 of the reciprocating shaft 30.

[0043] A damping element 18 of the damping elements 18, 20, 22, 24, 42, 44 is arranged in the vicinity of the movement axis 28 of the reciprocating shaft 30. The movement axis 28 intersects at least one damping element 18.

[0044] Two damping elements 20, 24 of the damping elements 18, 20, 22, 24, 42, 44 are arranged between the reciprocating shaft 30 and the housing 14, in particular as viewed in a direction extending perpendicularly to the sawing plane 26. The damping element 20 is arranged on a side 34 of the reciprocating shaft 30 facing away from the sawing direction 32.

[0045] Another damping element 22 of the damping elements 18 , 20 , 22 , 24 , 42 , 44 is provided to prevent a cooling air backflow and at least substantially completely seals a gap between the drive unit 12 and the housing 14 in the circumferential direction of the drive unit 12 .

[0046] The drive unit 12 has a motor housing 62 for receiving the motor 50. The motor housing 62 has a cooling air inlet 64. The motor housing 62 has a cooling air outlet 66. Another damping element 22 seals the gap between the motor housing 62 and the housing 14 at least substantially completely in the circumferential direction of the motor housing 62. The drive unit 12, in particular the motor 50, has a drive shaft 68. The drive unit 12, preferably the circumferential direction of the motor housing 62, extends in a plane perpendicular to the drive shaft 68. The reciprocating saw device 10, in particular the drive unit 12, has a fan unit 70 for generating a cooling air flow to cool at least the drive unit 12, in particular the motor 50. The fan unit 70 has a fan impeller 72. The drive unit 12 is configured to drive the fan unit 70, in particular at least one fan impeller 72, preferably around the drive shaft 68.

[0047] The drive shaft 68 is arranged here by way of example at an angle of at least substantially 45° relative to the reciprocating shaft 30, in particular the axis of movement 28, preferably in the saw plane 26. In this context, “at least substantially” is to be understood in particular as a deviation from a predetermined value of less than 25%, preferably less than 10%, particularly preferably less than 5%. However, it is also conceivable that the drive shaft 68 is arranged at an angle different from 45° relative to the reciprocating shaft 30, in particular the axis of movement 28, for example at an angle of up to 90° and / or at least 30°. Furthermore, it is alternatively conceivable that the drive shaft 68 extends at an angle to the saw plane 26, for example at an angle of at least substantially 90°.

[0048] The damping elements 18 , 20 , 24 each have at least one form-fitting element 36 (see also Figure 4 ). The form-fitting element 36 is provided for form-fitting with a corresponding mating form-fitting element 38 on the drive unit 12. The form-fitting element 36 is designed here as a notch by way of example. Alternatively, it is conceivable that the form-fitting element 36 is designed as a raised portion. The mating form-fitting element 38 is designed as a raised portion. Alternatively, it is conceivable that the mating form-fitting element 38 is designed as a notch.

[0049] The damping elements 18, 20, 24 each have a shear force transmission surface 40. The shear force transmission surface 40 is formed here, for example, by a surface of the damping element 18, 20, 24 that delimits the form-fitting element 36 designed as a groove.

[0050] The shear forces can be transmitted via the form-fitting element 36 and the counter-form-fitting element 38 . Alternatively, it is conceivable that the damping element 18 , 20 , 24 has a shear force transmission surface 40 which is designed separately from the corresponding form-fitting element 36 .

[0051] The damping elements 42, 44 are arranged on the side of the reciprocating shaft 30, in particular on the side of the reciprocating shaft 30 with respect to the saw plane 26 (see Figure 3 and Figure 5 It is conceivable that the damping elements 42 , 44 each have a form-fitting element 36 for cooperating with a corresponding mating form-fitting element 38 on the drive unit 12 , or have no form-fitting element 36 for cooperating with a corresponding mating form-fitting element 38 on the drive unit 12 .

[0052] The reciprocating saw 46, in particular the reciprocating saw device 10, has a control and / or regulating unit 90. The control and / or regulating unit 90 is used to control and / or regulate the drive unit 12, in particular the motor 50. The control and / or regulating unit 90 is arranged in the housing 14. The control and / or regulating unit 90 is connected to the drive unit 12 in terms of data technology, in particular by wire and / or wirelessly.

[0053] The control and / or regulation unit 90 includes at least one processor and a storage element and an operating program stored on the storage element. The storage element is configured as a digital storage medium, such as a memory chip, a flash memory, and the like.

[0054] The housing 14 has an air inlet 86 for the inlet of cooling air. The housing 14 has an air outlet 88 for the exhaust air from the housing 14. The fan unit 70 is provided for sucking air into the housing 14 through the air inlet 86. The fan unit 70 is provided for blowing air out of the housing 14 through the air outlet 88. The fan unit 70 is particularly provided for cooling the control and / or regulating unit 90. The fan unit 70 is preferably provided for guiding air from the air inlet 86 via the control and / or regulating unit 90 and / or through the motor 50, preferably the cooling air inlet 64 and the cooling air outlet 66 to the air outlet 88.

[0055] The housing 14 has a damping element receiving portion 74 for receiving the damping elements 18, 20, 22, 24, 42, 44 (see Figure 6 ). It is conceivable that the damping elements 18, 20, 22, 24, 42, 44 have different hardnesses at least in part. For example, it is conceivable that the damping element 22 is designed to be softer than the damping elements 18, 20, 24, 42, 44. It is also conceivable that the damping elements 18, 20, 22, 24, 42, 44 have at least in part the same hardness. For example, at least the damping elements 18, 20, 24 have the same hardness here.

[0056] Damping elements 18 , 20 , 24 are at least substantially plate-shaped. Damping elements 42 , 44 are in this case, for example, cuboid-shaped.

[0057] The damping element 24 is designed in an annular shape by way of example. The density of the damping element 24 is, by way of example, at least 200 kg / m 3 The density of the damping element 24 is, by way of example, at most 400 kg / m 3 However, it is also conceivable that the density of the damping element 24 has a value of less than 200 kg / m 3 Or more than 400kg / m 3 The value of .

Claims

1. A reciprocating saw device (10) comprising a drive unit (12) and a housing (14) for receiving the drive unit (12), characterized in that A damping unit (16) is provided for vibration-decoupling the housing (14) from the drive unit (12), wherein the damping unit (16) connects the housing (14) to the drive unit (12).

2. The reciprocating saw device (10) according to claim 1, characterized in that: The housing (14) is arranged spaced apart from the drive unit (12).

3. The reciprocating saw device (10) according to claim 1 or 2, characterized in that: The damping unit (16) has at least two damping elements (18, 20, 22, 24), wherein a saw plane (26) intersects the two damping elements (18, 20, 22, 24).

4. A reciprocating saw device (10) according to any one of the preceding claims, characterized in that The damping unit (16) has at least one damping element (18) which is arranged at least in the vicinity of a movement axis (28) of a reciprocating shaft (30) of the drive unit (12).

5. A reciprocating saw device (10) according to any one of the preceding claims, characterized in that The damping unit (16) has at least one damping element (20, 24) which is arranged between a reciprocating shaft (30) of the drive unit (12) and the housing (14).

6. The reciprocating saw device (10) according to claim 5, characterized in that: The damping element (20) is arranged on a side (34) of the reciprocating shaft (30) facing away from the sawing direction (32).

7. A reciprocating saw device (10) according to any one of the preceding claims, characterised in that The damping unit (16) has at least one damping element (22) for preventing a backflow of cooling air, the damping element at least substantially completely sealing a gap between the drive unit (12) and the housing (14) in a circumferential direction of the drive unit (12).

8. A reciprocating saw device (10) according to any one of the preceding claims, characterised in that The damping unit (16) has at least one damping element (18, 20, 22, 24) having at least one form-locking element (36) which is provided for form-locking with a corresponding mating form-locking element (38) on the drive unit (12).

9. A reciprocating saw device (10) according to any one of the preceding claims, characterised in that The damping unit (16) has at least one damping element (18, 20, 22, 24) having at least one shear force transmission surface (40).

10. A reciprocating saw device (10) according to any one of the preceding claims, characterised in that The damping unit (16) has at least one damping element (42, 44) which is arranged laterally of a reciprocating shaft (30) of the drive unit (12), in particular laterally of the reciprocating shaft (30) of the drive unit (12) with respect to a saw plane (26).

11. A reciprocating saw (46), in particular a crescent saw, having a reciprocating saw device (10) according to any one of the preceding claims.

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