CN103108727A - Handheld power tool switching device - Google Patents
Handheld power tool switching device Download PDFInfo
- Publication number
- CN103108727A CN103108727A CN2011800451814A CN201180045181A CN103108727A CN 103108727 A CN103108727 A CN 103108727A CN 2011800451814 A CN2011800451814 A CN 2011800451814A CN 201180045181 A CN201180045181 A CN 201180045181A CN 103108727 A CN103108727 A CN 103108727A
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- China
- Prior art keywords
- switch
- switching device
- executive component
- machine tool
- tool switching
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/003—Clutches specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0015—Tools having a percussion-only mode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0023—Tools having a percussion-and-rotation mode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D2216/0084—Mode-changing mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/165—Overload clutches, torque limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/255—Switches
Abstract
The invention is based on a handheld power tool switching device with at least one operating unit (12a; 12b; 12c; 12d) for actuating a switching element (14a, 14b, 14c, 14d), which comprises at least one operating element (16a; 16b; 16c; 16d) and at least one lever-like transmission element (18a; 18b; 18c; 18d). It is proposed that the operating unit (12a; 12b; 12c; 12d) should have at least one feeler (20a; 20b; 20c; 20d) coupled to the operating element (16a; 16b; 16c; 16d).
Description
Background technology
Disclose a kind of machine tool switching device by WO 2004/024398A1, it has the switch element that an operating unit is used for operated clutch.Here, this operating unit has the transmitting element of an executive component and a lever form.This executive component is by the cable wire of a flexibility and the transmitting element coupling of described lever form.
Summary of the invention
The present invention relates to a kind of machine tool switching device that at least one is used for the operating unit of console switch element that has, this operating unit has the transmitting element of at least one executive component and at least one lever form.
The present invention suggestion, this operating unit have at least one feeler wire that is coupled with described executive component." operating unit " especially should be understood to a unit here, this unit has at least one member, this member can directly be operated by the operator, and this unit is arranged for, by operation and/or affect and/or change process and/or the state of a unit that is coupled with described operating unit by input parameter.Preferably, the executive component of described operating unit is directly by operator's operation, thereby the stream of exerting all one's strength can be used for connecting clutch and/or transmission device to switch element from the direct and/or indirect transmitting element via the lever form of operating unit.Term " switch element " should be defined as an element here, this element is arranged for, due to operated clutch and/or transmission device, at least from a first order, especially the first level-overload and/or the first speed change level switch to a second level, especially the second level-overload and/or the second speed change level.But the preferred translation of described switch element movably, especially the longitudinal axis along described switch element is supported.But also can expect, described switch element is supported on other, significant kind and a mode of seeming for the technical staff movingly.
Preferably, described switch element is controlled by a synchronous element of described operating unit, thereby a reliable handoff procedure can be in clutch and/or the inner generation of transmission device." synchronous element " especially should be understood to an element here, this element can be realized clutch level of preliminary election and/or a gear stage in the not synchronous state of the member of clutch and/or transmission device, and because the energy that is stored in the synchronous regime of these members of clutch and/or transmission device causes a member, the especially motion of switch element.Preferably, described synchronous element is arranged between transmitting element and switch element along power stream.This synchronous element is especially preferably by a member structure flexible, especially spring." transmitting element of lever form " especially should be understood to an element here, this element is arranged for, by the motion and/or rotatablely move of tumbling around an axis, one by the operator be applied on a member, especially directly and/or indirectly be delivered on an other member in the power on described executive component, especially on described synchronous element and/or described switch element.Preferably, the transmitting element of described lever form is loaded bending." feeler wire " especially should be understood to the member of a flexibility here, this member preferably can transmit pulling force, pressure and torque, especially greater than the pulling force of 1N and pressure and greater than the torque of 1Nm, and can obtain, especially transmit and/or transform the motion of an other member, especially described executive component, thereby because the motion that is acquired can be directly and/or indirectly control an other member, especially described switch element.Can structurally reach simply the favourable operation of clutch and/or transmission device, switching process especially by machine tool switching device according to configuration of the present invention.
The present invention's suggestion in addition, described executive component has at least one control structure, and this control structure is arranged for described feeler wire guiding." control structure " especially should be understood to a structure of described executive component, geometric configuration especially here, and this structure on purpose is arranged for, and causes the motion of described feeler wire due to the motion of described executive component.The transmission of the motion of described executive component can advantageously be delivered on feeler wire.
The present invention's suggestion in addition, described feeler wire is supported swingably.Preferably, described control structure is arranged for, and described feeler wire is swung in a position of the switch around an axis of oscillation according to the motion of executive component." position of the switch " especially should be understood to a position of described executive component here, and described executive component for example rests in this position after operating by the operator.Described switch element directly and/or indirectly operates and can structurally reach simply.
Advantageously, described executive component has a rotation, and this rotation extends with respect to the axis of oscillation of the transmitting element of described lever form at least substantially parallelly." substantially parallel " here especially should be understood to a direction and ./or axis with respect to a reference direction and/or an axis of reference, the orientation in a plane especially, wherein, described direction and/or described axis relative reference direction and/or axis of reference have one especially less than 8 °, advantageously less than 5 ° and especially advantageously less than the deviation of 2 °.The acting in conjunction of the transmitting element of described executive component and described lever form can structurally reach simply.
The present invention suggestion in addition, described control structure have one and control cam, and this controls cam has one with respect to the spacing of the rotation change of described executive component, the radial spacing of a change especially.Preferably, described control cam is constructed by a control flume.But can expect, described control cam is controlled the rib structure by one." control flume " especially should be understood to a material void in the surface of described executive component here, and member, especially feeler wire extends inward in this space and/or described member, especially described feeler wire pass this ground, space and extend in the part at least at least in part.Preferably, with the zone of a described control flume of adjacency of described executive component comparatively speaking, described executive component has a less material thickness, the material thickness of a 0mm especially in the zone of described control flume.By configuration according to the present invention, the motion of described executive component, especially rotatablely move by described control cam can structurally transform to simply the motion of described feeler wire, especially tumble the motion in.
Preferably, the transmitting element of described feeler wire and described lever form is configured integratedly.Term " integratedly " especially should be understood to material here and connects in locking manner---for example by welding process and/or bonding process etc.---and advantageously moulding, as by being made by cast and/or by making in a list or multicomponent injection moulding process.Structure space, installation and expense can advantageously be saved.Especially advantageously, the transmitting element of described executive component and lever form is configured integratedly.Advantageously, the machine tool switching device of a compactness can reach.
The present invention's suggestion in addition, but described executive component translation is supported movably.Especially preferably, described executive component is supported movably along a longitudinal axis of described executive component.Preferably, the longitudinal axis of described executive component extends in hand held power machine along the rotation of the tool fitting of hand held power machine and/or along the processing axis of hand held power machine in the state of the installation of machine tool switching device.Advantageously, the comfortable operability of described executive component can reach.
Preferably, described machine tool switching device has at least one reset unit, and this reset unit is arranged for, and described executive component is automatically resetted." automatically " energy that is stored that especially should be understood to the reposition element of described reset unit is here exported on described executive component, thereby the effect of the power of reset unit, especially the effect with the power of operator's uncoupling can occur on described executive component.Advantageously can reach a security function, thus for example described executive component the running status of---described machine tool switching device is installed in wherein---can reset in a home position according to a hand held power machine.
The present invention's suggestion in addition, described reset unit has at least one back-moving spring.Advantageously, described back-moving spring is configured to butterfly spring and/or helical spring.The reset position of described executive component can structurally reach simply.
Advantageously, described reset unit has at least one locking member, and this locking member is locked in described executive component at least one position of the switch.Preferably, described locking member is loaded on the direction of described executive component by a spring force, thereby described locking member can snap onto in a latch groove of described executive component due to spring force, and described executive component can be locked in a position of the switch thus.Can advantageously realize the stop of described executive component in a position of the switch.
In addition, the present invention relates to a kind of the have hand held power machine according to machine tool switching device of the present invention, especially a kind of hammer drill and/or a kind of chiso-mallet.Operator for described hand held power machine advantageously can reach high operation comfort.
Description of drawings
Other advantage is provided by following description of drawings.Embodiments of the invention shown in the drawings.Accompanying drawing, specification and claim combine and contain a large amount of features.The technical staff also considers individually aptly these features and sums up significant other combination.Wherein:
Fig. 1 with schematic diagram illustrated according to of the present invention, have a hand held power machine according to machine tool switching device of the present invention;
Fig. 2 has illustrated the cutaway view that passes through according to the front area of hand held power machine of the present invention with schematic diagram;
Fig. 3 has illustrated detailed view according to machine tool switching device of the present invention with schematic diagram;
Fig. 4 has illustrated the detailed view of machine tool switching device according to the present invention in a blocked position of the switch with schematic diagram,
Fig. 5 with schematic diagram illustrated according to of the present invention, have an alternative hand held power machine according to machine tool switching device of the present invention;
Fig. 6 has illustrated the detailed view according to machine tool switching device of the present invention of Fig. 5 with schematic diagram;
Fig. 7 has illustrated according to hand held power machine of the present invention, that have other alternative machine tool switching device with schematic diagram;
Fig. 8 shows the detailed view according to machine tool switching device of the present invention of Fig. 7;
Fig. 9 has illustrated according to hand held power machine of the present invention, that have other alternative machine tool switching device with schematic diagram; With
Figure 10 has illustrated the detailed view of the machine tool switching device of Fig. 9 with schematic diagram.
The specific embodiment
Fig. 1 shows according to hand held power machine 36a of the present invention, and it is configured to hammer drill and/or chiso-mallet.Hand held power machine 36a comprises a multiple casing housing 38a, and this housing surrounds a motor unit 40a and a gear unit 42a.In addition, hand held power machine 36a has a tool fitting 44a, a plug-in type cutter 46a, and for example drill bit, chisel etc. can insert in this tool fitting.Plug-in type cutter 46a by motor unit 40a and gear unit 42a rotationally and/or translation ground driven.
Fig. 2 shows the cutaway view by the front area of hand held power machine 36a.In order to be limited in the operating maximum allowable torque of hand held power machine 36a, hand held power machine 36a has a safety clutch 48a.Here, the safety clutch 48a working method that personnel have been familiar with that possesses skills.In addition, safety clutch 48a is arranged in the bevel gear level 60a of gear unit 42a.But also can expect, safety clutch 48a be arranged on of gear unit 42a other, seem on significant position and/or in the inside of the housing 38a of hand held power machine 36a for the technical staff.The bevel gear level 60a of gear unit 42a is arranged for, and a hammer that drives rotationally hand held power machine 36a by the torque that produces by motor unit 40a is managed 62a and tool fitting 44a.The rotation of safety clutch 48a at least substantially perpendicularly extends with respect to the rotation 164a of hammer pipe 62a and/or tool fitting 44a.Safety clutch 48a has two level-overloads, i.e. a low level-overload and a high level-overload, and they can be activated by the switch element 14a of safety clutch 48a.But also can expect, safety clutch 48a has more than two level-overloads, and these level-overloads can be activated by switch element 14a.With described high level-overload Comparatively speaking, in described low level-overload, safety clutch 48a triggers when a less torque allowable.Switch element 14a axially movably is supported in safety clutch 48a, thus switch element 14a can translation in a handoff procedure ground along the longitudinal axis 50a of the switch element 14a internal motion at safety clutch 48a.Can switch between described two level-overloads of safety clutch 48a according to the application scenario of hand held power machine 36a thus.The longitudinal axis 50a of switch element 14a at least substantially perpendicularly extends with respect to the rotation 164a of hammer pipe 62a.For the switch element 14a of operated overload clutch 48a, hand held power machine 36a comprises a machine tool switching device 10a.
Fig. 3 shows the detailed view of machine tool switching device 10a.Machine tool switching device 10a has one with the operating unit 12a of the transmitting element 18a of executive component 16a and lever form.Here, executive component 16a is configured to rotary switch 52a, and this rotary switch rotatably is supported in housing 38a around a rotation 24a coaxial with respect to the longitudinal axis 50a of switch element 14a.Here, rotary switch 52a has two position of the switch.In a position of the switch that is implemented as original position, the low level-overload of safety clutch 48a is activated.In a position of the switch that is implemented as run location, the high level-overload of safety clutch 48a is activated.Rotary switch 52a has an annulus cross section at least basically in a plane of vertically extending with respect to rotation 24a.In addition, rotary switch 52a comprises an operation projection 54a, and the housing shell 58a of this operation projection along the radial direction 56a of rotary switch 52a from housing 38a extends out.Operation projection 54a can be directly operated by the operator of hand held power machine 36a.By operator's operating operation projection 54a the time, rotary switch 52a can rotate along a default angular zone around rotation 24a.Here, rotary switch 52a is by a bayonet coupling part 66a axially stop (Fig. 4) in housing 38a.
In addition, operating unit 12a has a feeler wire 20a who is coupled with executive component 16a.Feeler wire 20a is supported on a holding element 64a swingably.Holding element 64a can not be arranged in housing 38a with relatively rotating.In addition, the transmitting element 18a of feeler wire 20a and lever form is configured integratedly.Be configured to rocking bar 68a the lever form transmitting element 18a, therefore also have the axis of oscillation 26a of feeler wire 20a to extend in a plane, vertically extend with respect to the rotation 24a of rotary switch 52a on this plane.Rocking bar 68a has first an arm 72a and is connected the second arm 74a that is connected rigidly by a supporting section 76a and described the first arm 72a.The first arm 72a and the second arm 74a are relative to each other arranged by being bent angularly ground, and press from both sides into about angle of 90 °.But also can expect, the first arm 72a presss from both sides into one from 90 ° of angles of departing from the second arm 74a.
In addition, executive component 16a has a control structure 22a, and this control structure is arranged for, to feeler wire 20a with thus to the transmitting element 18a guiding of the lever form that is configured to rocking bar 68a.Control structure 22a has one and controls cam 28a, and this control cam has a spacing (Fig. 4) that changes with respect to the rotation 24a of the executive component 16a that is configured to rotary switch 52a.Control cam 28a about trend rotary switch 52a, that circumferencial direction 70a that vertically extend with respect to rotation 24a has a bias in a plane.Along the trend of controlling cam 28a, observe on circumferencial direction 70a, change continuously at rotation 24a and the spacing controlled between cam 28a along the radial direction 56a of rotary switch 52a.Control cam 28a by a dead slot structure in a side 80a of rotary switch 52a, annular that vertically extend with respect to rotation 24a.The first arm 72a of rocking bar 68a and a columniform end 84a are arranged on and control in cam 28a.On the second arm 74a of rocking bar 68a, a synchronous element 78a is arranged on the end 86a of a switch-oriented element 14a, and this synchronous element is connected rocking bar 68a and is connected with switch element 14a.Synchronous element 78a is constructed by a spring element 82a, and this spring element is resiliently deformable.Spring element 82a is arranged between rocking bar 68a and switch element 14a along power stream, thereby spring element 82a can be delivered to a power on switch element 14a from rocking bar 68a.Spring element 82a has two with arm 88a, the 90a of the end that is bent, and these arms are arranged in groove 92a, the 94a of switch element 14a and partly surround switch element 14a.Described two arm 88a, 90a are interconnected with one another in locking manner by a contiguous block 96a material.Contiguous block 96a is connected with rocking bar 68a.
When rotary switch 52a moved to run location around rotation 24a from original position, due to the setting of columniform end 84a in controlling cam 28a of the first arm 72a, rocking bar 68a tumbled around axis of oscillation 26a.Thus, the second arm 74a tumbles around axis of oscillation 26a equally.Because the synchronous element 78a that is configured to spring element 82a is arranged between rocking bar 68a and switch element 14a, switch element 14a moves on the direction of hammer pipe 62a along longitudinal axis 50a in the inside of safety clutch 48a.Here, safety clutch 48a switches to described high level-overload from described low level-overload in synchronous state.In handoff procedure in switching to the not synchronous state of safety clutch 48a, switch element 14a is prevented from the motion of the inside of safety clutch 48a.The synchronous element 78a that is configured to spring element 82a stores the motion of rocking bar 68a as potential energy in the not synchronous state of safety clutch 48a.The compensation of synchronous element 78a by being configured to spring element 82a, rotary switch 52a and rocking bar 68a can move in the not synchronous state of safety clutch 48a thus.In case safety clutch 48a is in synchronous state, by the potential energy that stores in being configured to the synchronous element 78a of spring element 82a, switch element 14a moves on the direction of hammer pipe 62a in safety clutch 48a inside, thereby safety clutch 48a switches to described high level-overload from a low level-overload.Handoff procedure from the run location of rotary switch 52a to original position through basically realizing similarly with above-mentioned handoff procedure.Difference is, safety clutch 48a is switched to a low level-overload from a high level-overload.
In addition, machine tool switching device 10a has a reset unit 30a, and this reset unit is arranged for the executive component 16a that is configured to rotary switch 52a is automatically resetted.To this, reset unit 30a has a back-moving spring 32a who is configured to butterfly spring 122a.Butterfly spring 122a with an end portion supports on rotary switch 52a, and with another end portion supports on the interior zone of housing 38a.After original position moves to run location, rotary switch 52a around rotation 24a by butterfly spring 122a with the opposite direction that rotatablely moves on be loaded a spring force.Butterfly spring 122a attempts to make rotary switch 52a motion to get back in original position thus.For fear of directly resetting after rotary switch 52a moves to original position from the position of the switch, reset unit 30a has a locking member 34a, and this locking member is locked in rotary switch 52a in a position of the switch, described run location.Rotary switch 52a has a latch groove 98a, and locking member 34a can snap onto in this latch groove.Latch groove 98a is arranged on the circumference 100a of rotary switch 52a, and this circumference vertically and along circumferencial direction 70a extends with respect to radial direction 56a.
The spring catch 120a of reposition element 30a is arranged on slide-valve component 116a dorsad on the side of brake bar 112a.This spring catch 120a axially is supported in the dead slot of base plate 110a equally movingly.Spring catch 120a is coupled to the side of slide-valve component 116a dorsad in the dead slot of locking sleeve 124a of tool fitting 44a.Locking sleeve 124a is arranged for, and will be arranged in the plug-in type cutter 46a locking of tool fitting 44a.When operation locking sleeve 124a came release plug-in type cutter 46a, for example when cutter changing, spring catch 120a moved axially on the direction of brake bar 112a.Here, spring catch 120a equally axially moves slide-valve component 116a on the direction of brake bar 112a.Slide-valve component 116a causes the oscillating motion of brake bar 112a on the direction of tool fitting 44a against the axially-movable of the spring force of helical spring 106a, 108a.Brake bar 112a moves out and rotary switch 52a moves to original position due to the spring force of butterfly spring 122a from latch groove 98a.
Can expect equally owing to cancelling the operator at the switch 126a(Fig. 1 that is used for motor unit 40a energising) on the power effect trigger reset unit 30a.In addition, seem significant for the technical staff and can expect equally for the implementer's case that triggers reset unit 30a.
In addition, rotary switch 52a also can manually be moved to original position from run location by the operator.By with the overvoltage against the spring force of helical spring 106a, 108a of the kayser moment of brake bar 112a, the operator can move out brake bar 112a from latch groove 98a, thereby brake bar 112a discharges rotary switch 52a.Rotary switch 52a is because the spring force of butterfly spring 122a automatically moves in original position.
At Fig. 5 to embodiment alternative shown in Figure 10.Basically indicate with identical reference marker on same member, feature and functional principle.In order to distinguish these embodiment, alphabetical a to d is added to the reference marker back of these embodiment.The following description is limited to the difference with respect to the first embodiment in Fig. 1 to Fig. 4 basically, wherein can consult the explanation of the first embodiment in Fig. 1 to Fig. 4 about same member, feature and function.
Fig. 5 illustrates the partial view of hand held power machine 36b.Hand held power machine 36b has the safety clutch 48b and the machine tool switching device 10b that are used for the limiting permission torque, and this machine tool switching device comprises that an operating unit 12b is used for switch element 14b(Fig. 6 of operated overload clutch 48b).Operating unit 12b has one and is configured to the executive component 16b of rotary switch 52b and the transmitting element 18b of a lever form.Rotary switch 52b rotatably is supported in the housing 38b of hand held power machine 36b around rotation 24b.Here, rotary switch 52b is arranged on the exterior domain of housing shell 58b of housing 38b, and extends internally in the interior zone of housing.Rotary switch 52b is arranged in the zone of hammer pipe 62b of hand held power machine 36b.
Fig. 6 illustrates the detailed view of machine tool switching device 10b.Machine tool switching device 10b has a feeler wire 20b, this feeler wire and the executive component 16b coupling that is configured to rotary switch 52b.Feeler wire 20b is supported in housing 38b swingably.In addition, the transmitting element 18b of feeler wire 20b and lever form constructs integratedly.Here, the executive component 16b that is configured to rotary switch 52b has a rotation 24b, and this rotation extends with respect to the axis of oscillation 26b of the transmitting element 18b of lever form at least substantially parallelly.The transmitting element 18b of lever form has two the arm 72b, the 74b that at least basically extend in parallel to each other, and these arms are interconnected with one another by the Connection Element 132b material of being bent angularly with respect to two arm 72b, 74b in locking manner by one.In addition, the executive component 16b that is configured to rotary switch 52b has a control structure 22b, and this control structure is arranged for the feeler wire 20b guiding to the transmitting element 18b that is configured to the lever form.Control structure 22b is the structure of the dead slot in the circumference 100b of rotary switch 52b by one.The circumference 100b of rotary switch 52b along the circumferential direction 70b extends, and this circumferencial direction 70b extends in the plane of vertically extending with respect to rotation 24b.Here, in two arm 72b, the 74b of the transmitting element 18b of lever form is arranged in control structure 22b.In addition, operating unit 12b comprises a switch lever 130b, and this switch lever has an axis of oscillation that extends coaxially with respect to the axis of oscillation 26b of the transmitting element 18b of lever form.
In addition, machine tool switching device 10b has a reset unit 30b, and this reset unit is arranged for the operating unit 16b that is configured to rotary switch 52b is automatically resetted.To this, reset unit 30b has a back-moving spring 32b who is configured to butterfly spring 122b.In addition, reset unit 30b has a locking member 34b, and the executive component 16b that this locking member will be configured to rotary switch 52b is locked in a position of the switch that is implemented as run location.Here, rotary switch 52b has a latch groove 98b, and this latch groove is arranged on the circumference 100b of rotary switch 52b.The working method of reset unit 30b is basically corresponding with the working method described in the first embodiment.
Fig. 7 shows the partial view of the hand held power machine 36c of the alternative configuration with machine tool switching device 10c.Hand held power machine 36c has a safety clutch 48c and is used for the limiting permission torque.For the switch element 14c of operated overload clutch 48c, machine tool switching device 10c has an operating unit 12c(Fig. 8).Operating unit 12c has one and is configured to the executive component 16c of slide switch 134c and the transmitting element 18c of a lever form.But the executive component 16c translation that is configured to slide switch 134c is supported in the housing 38c of hand held power machine 36c movably.Here, slide switch 134c is supported movably along the rotation 164c of the tool fitting 44c of hand held power machine 36c.
Fig. 8 shows the detailed view of machine tool switching device 10c.Slide switch 134c is by the feeler wire 20c coupling that is configured to selector fork 138c of hinged 136c and operating unit 12c.In addition, selector fork 138c is by the transmitting element 18c coupling of an other hinge 140c and lever form.The transmitting element 18c of lever form is connected with the switch element 14c of safety clutch 48c by a synchronous element 78c who is configured to spring element 82c.When original position moved to run location, selector fork 138c moved on the direction of the transmitting element 18c of lever form at slide switch 134c.Thus, the transmitting element 18c of lever form tumbles around axis of oscillation 26c.In the synchronous regime of safety clutch 48c, switch element 14c passes through synchronous element 78c in the inside of safety clutch 48c translation ground movement.Here, safety clutch 48c switches to a high level-overload from a low level-overload.
In addition, machine tool switching device 10c has a reset unit 30c, and this reset unit is arranged for the executive component 16c that is configured to slide switch 134c is automatically resetted.To this, reset unit 30c has a back-moving spring 32c who is configured to helical spring 142c, and this back-moving spring makes slide switch 134c be loaded a spring force on the direction of original position.In addition, reset unit 30c has a locking member 34c, and the executive component 16c that this locking member will be configured to slide switch 134c locks in a position of the switch that is implemented as run location.Slide switch 134c comprises a latch-up structure 144c, and locking member 34c may be fitted in this latch-up structure.Locking member 34c is configured to trapezoidal, and by helical spring 146c spring force of load on the direction of slide switch 134c.The side 148c of locking member 34c rests on the inclined plane 150c of latch-up structure 144c in the latched position of locking member 34c.
In order to make the latch-up structure 144c uncoupling of locking member 34c and slide switch 134c, reset unit 30c has a decoupling element 152c.Decoupling element 152c on the side of locking member 34c dorsad by the locking sleeve 124c coupling of slide-valve component 116c and tool fitting 44c.When operation locking sleeve 124c, decoupling element 152c moves on the direction of locking member 34c by slide-valve component 116c.Decoupling element 152c has a uncoupling inclined-plane 154c, and this uncoupling inclined-plane is arranged for locking member 34c is moved against the spring force of helical spring 146c.Thus, the inclined plane 150c of latch-up structure 144c realizes that locking member 34c breaks away from cooperation.Slide switch 134c is because the spring force of helical spring 142c moves in original position.Thus, safety clutch 48c switches to a low level-overload from a high level-overload in synchronous regime.
Fig. 9 shows the partial view of the hand held power machine 36d of the alternative configuration with machine tool switching device 10d.Hand held power machine 36d has a safety clutch 48d and is used for the limiting permission torque.For the switch element 14d of operated overload clutch 48d, machine tool switching device 10d comprises an operating unit 12d(Figure 10).Operating unit 12d has one and is configured to the executive component 16d of tumbler switch 156d and the transmitting element 18d of a lever form.The executive component 16d that is configured to tumbler switch 156d is supported in the housing 38d of hand held power machine 36d swingably.Here, tumbler switch 156d is supported swingably around an axis of oscillation 26d who vertically extends with respect to the rotation 164d of the tool fitting 44d of hand held power machine 36d.
Figure 10 shows the detailed view of machine tool switching device 10d.In addition, operating unit 12d comprises a feeler wire 20d who is coupled with the executive component 16d that is configured to tumbler switch 156d.Here, feeler wire 20d and tumbler switch 156d are configured integratedly.The transmitting element 18d of tumbler switch 156d and lever form is configured integratedly.In addition, tumbler switch 156d is connected with the synchronous element 78d that is configured to flexible switch clip 158d.Here, switch clip 158d is connected with the switch element 14d of safety clutch 48d.By tumbling of the tumbler switch 156d switch clip 158d of operating flexibility thus that moves, this switch clip makes switch element 14d mobile on the inside of safety clutch 48d translation ground in the synchronous state of safety clutch 48d.Here, safety clutch 48d switches to a high level-overload from a low level-overload.In the not synchronous state of safety clutch 48d, switch clip 158d flexibly is out of shape, thus switch element 14d and switch clip 158d on the direction of safety clutch 48d by pretension.In case safety clutch 48d is in synchronous state, switch element 14d is by mobile along the longitudinal axis 50d translation ground of switch element 14d at the prestressing force of the inside of safety clutch 48d.
In addition, machine tool switching device 10d has a reset unit 30d, and this reset unit is arranged for the executive component 16d that is configured to tumbler switch 156d is automatically resetted.To this, reset unit 30d has a back-moving spring 32d who is configured to helical spring 142d, and this back-moving spring makes tumbler switch 156d spring force of load on the direction of original position.Back-moving spring 32d is arranged for, and makes tumbler switch 156d because spring force moves in original position around axis of oscillation 26d.Here, back-moving spring 32d is configured to butterfly spring 122d, and this butterfly spring arranges around axis of oscillation 26d.In addition, reset unit 30d has a locking member 34d, and the executive component 16d that this locking member will be configured to tumbler switch 156d locks in a position of the switch that is implemented as run location.Tumbler switch 156d comprises a latch-up structure 144d, and this latch-up structure rests on locking member 34d in the run location of tumbler switch 156d.Locking member 34d is configured to hook-type.Latch-up structure 144d comprises a stop pin 160d, but this stop pin translation ground movement, and be supported in tumbler switch 156d by a helical spring 162d spring with loading.Locking member 34d is in the locking sleeve 124d coupling by slide-valve component 116d and tool fitting 44d of the side of tumbler switch 156d dorsad.When operation locking sleeve 124d, locking member 34d moves on the direction of stop pin 160d by slide-valve component 116d.Here, stop pin 160d axially moves in tumbler switch 156d against the spring force of helical spring 162d, thereby tumbler switch 156d is because the spring force of back-moving spring 32d is tumbled in original position.
Claims (12)
1. machine tool switching device, have at least one and be used for switch element (14a of operation; 14b; 14c; Operating unit (12a 14d); 12b; 12c; 12d), described operating unit has at least one executive component (16a; 16b; 16c; 16d) and the transmitting element (18a of at least one lever form; 18b; 18c; 18d), it is characterized in that described operating unit (12a; 12b; 12c; 12d) have at least one and described executive component (16a; 16b; 16c; 16d) feeler wire (the 20a of coupling; 20b; 20c; 20d).
2. machine tool switching device according to claim 1, is characterized in that, described executive component (16a; 16b) has at least one control structure (22a; 22b), described control structure is arranged for described feeler wire (20a; 20b) guiding.
3. according to the described machine tool switching device of above claim any one, it is characterized in that described feeler wire (20a; 20b; 20c; 20d) be supported swingably.
4. according to the described machine tool switching device of above claim any one, it is characterized in that, described executive component (16b) has a rotation (24b), and this rotation extends with respect to the axis of oscillation (26b) of the transmitting element (18b) of described lever form at least substantially parallelly.
5. machine tool switching device according to claim 2 at least, it is characterized in that, described control structure (22a) has one and controls cam (28a), and this control cam has the spacing with respect to rotation (24a) change of described executive component (16a).
6. according to the described machine tool switching device of above claim any one, it is characterized in that described feeler wire (20a; 20b; 20d) with the transmitting element (18a of described lever form; 18b; 18d) be configured integratedly.
7. machine tool switching device according to claim 5, is characterized in that, described executive component (16d) is configured integratedly with the transmitting element (18d) of described lever form.
8. machine tool switching device according to claim 1 at least, is characterized in that, described executive component (16c) but translation be supported movably.
9. according to the described machine tool switching device of above claim any one, it is characterized in that at least one reset unit (30a; 30b; 30c; 30d), described reset unit is arranged for and makes described executive component (16a; 16b; 16c; 16d) automatically reset.
10. machine tool switching device according to claim 9, is characterized in that, described reset unit (30a; 30b; 30c; 30d) has at least one back-moving spring (32a; 32b; 32c; 32d).
11. machine tool switching device according to claim 9 at least is characterized in that, described reset unit (30a; 30b; 30c; 30d) has at least one locking member (34a; 34b; 34c; 34d), described locking member is with described executive component (16a; 16b; 16c; 16d) be locked at least one position of the switch.
12. hand held power machine, especially hammer drill and/or chiso-mallet have according to the described machine tool switching device of above claim any one.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010041259.7 | 2010-09-23 | ||
| DE201010041259 DE102010041259A1 (en) | 2010-09-23 | 2010-09-23 | Hand machine tool switching device |
| PCT/EP2011/063421 WO2012038141A1 (en) | 2010-09-23 | 2011-08-04 | Handheld power tool switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103108727A true CN103108727A (en) | 2013-05-15 |
| CN103108727B CN103108727B (en) | 2016-01-20 |
Family
ID=44629591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180045181.4A Expired - Fee Related CN103108727B (en) | 2010-09-23 | 2011-08-04 | Machine tool switching device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2618967B1 (en) |
| CN (1) | CN103108727B (en) |
| DE (1) | DE102010041259A1 (en) |
| RU (1) | RU2013118449A (en) |
| WO (1) | WO2012038141A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4763733A (en) * | 1985-10-26 | 1988-08-16 | Hilti Aktiengesellschaft | Hammer drill with rotational lock |
| US5842527A (en) * | 1995-08-18 | 1998-12-01 | Makita Corporation | Hammer drill with a mode change-over mechanism |
| CN1332067A (en) * | 2000-07-07 | 2002-01-23 | 希尔蒂股份公司 | Combined electric hand tool |
| CN101657300A (en) * | 2007-04-12 | 2010-02-24 | 株式会社牧田 | Hammer drill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2390062B1 (en) | 2002-09-13 | 2017-03-08 | Black & Decker Inc. | Rotary Tool |
-
2010
- 2010-09-23 DE DE201010041259 patent/DE102010041259A1/en not_active Withdrawn
-
2011
- 2011-08-04 CN CN201180045181.4A patent/CN103108727B/en not_active Expired - Fee Related
- 2011-08-04 WO PCT/EP2011/063421 patent/WO2012038141A1/en active Application Filing
- 2011-08-04 EP EP11739071.6A patent/EP2618967B1/en not_active Not-in-force
- 2011-08-04 RU RU2013118449/02A patent/RU2013118449A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4763733A (en) * | 1985-10-26 | 1988-08-16 | Hilti Aktiengesellschaft | Hammer drill with rotational lock |
| US5842527A (en) * | 1995-08-18 | 1998-12-01 | Makita Corporation | Hammer drill with a mode change-over mechanism |
| CN1332067A (en) * | 2000-07-07 | 2002-01-23 | 希尔蒂股份公司 | Combined electric hand tool |
| CN101657300A (en) * | 2007-04-12 | 2010-02-24 | 株式会社牧田 | Hammer drill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103108727B (en) | 2016-01-20 |
| EP2618967A1 (en) | 2013-07-31 |
| RU2013118449A (en) | 2014-10-27 |
| EP2618967B1 (en) | 2018-10-10 |
| WO2012038141A1 (en) | 2012-03-29 |
| DE102010041259A1 (en) | 2012-03-29 |
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