CN103158120A

CN103158120A - Portable tool machine

Info

Publication number: CN103158120A
Application number: CN2012105357336A
Authority: CN
Inventors: S·久里
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2011-12-15
Filing date: 2012-12-12
Publication date: 2013-06-19
Anticipated expiration: 2032-12-12
Also published as: DE102011088748A1; FR2984202B1; CN103158120B; FR2984202A1

Abstract

The invention relates to a portable tool machine which comprises at least one housing unit (12) having at least housing sleeve element (14) made of conductive material, and at least one passive unit (16) having at least one passive element (18) made of conductive material. The passive element at least partially extends out from the housing unit (12). According to the invention, the portable tool machine comprises at least one isolating unit (20) which is configured to electrically insulate the housing sleeve element (14) from at least part of the passive element (18) extending out of the housing unit (12).

Description

Hand tool

Technical field

The present invention relates to a kind of hand tool.

Background technology

Hand tool is known, and this comprises: a housing unit, this housing unit have a jacket casing member that is made of conductive material; With a driven unit, it has a drive element that is made of conductive material, and this drive element extends out from housing unit at least in part.

Summary of the invention

The present invention relates to a kind of hand tool, it comprises: at least one housing unit, this housing unit have at least one jacket casing member that is made of conductive material; With at least one driven unit, this driven unit has at least one drive element that is made of conductive material, and this drive element extends out from housing unit at least in part.

The present invention suggestion, hand tool comprises at least one isolated location, this isolated location be arranged for make the jacket casing member at least with respect to one of drive element from subregion electric insulation that housing unit stretches out." hand tool " should especially be interpreted as toolroom machine for processing work at this, it can the person of being operated without means of transport transport.Hand tool especially has less than 40kg, preferably less than 10kg and particularly preferably less than the quality of 5kg.But hand tool particularly preferably is constructed to have the hand held power machine of the main shaft that the oscillatory type of driven unit drives, and especially is constructed to the oscillatory type cordless power tool.Statement " housing unit " especially should limit a unit at this, and this unit surrounds the parts of hand tool, and for example motor, transmission device etc. and support are by the supporting force of the parts of housing unit encirclement.Housing unit preferably has a shell construction form.But also can expect, housing unit has a tank shape version or a combination that is comprised of shell construction form and tank shape version.Housing unit preferably includes at least two housing shells, and they connect the plane along one and can interconnect.Preferably, connect the axis of movement extension that the plane is substantially perpendicular to drive element at least.Term " housing shell " limits parts in context, it at least basically around at least one axis bending ground consist of and it be arranged at least one with state that another parts, especially another housing shell are connected in support driver element and/or driven unit." setting " especially should be understood to specialized designs and/or sets specially.The material thickness of housing shell especially less than the longitudinal extension size of housing shell 50%, preferably less than 25% and particularly preferably less than 10%.Statement " perpendicular " especially should limit a direction with respect to the orientation of a reference direction at this, wherein, this direction and this reference direction---especially observe in a plane---angle of pressing from both sides into 90 ° and this angle have especially less than 8 °, preferably less than 5 ° with particularly preferably less than the maximum deviation of 2 °." connection plane " especially should be understood to a plane at this, and it intersects and mutually recline in a confined state at this plane middle shell shell with the point of at least two space distances of at least one outer surface of one of housing shell in the confined state of housing shell.Preferably, the housing shell by Connection Element, for example by a cover plate, by screw, removably interconnect by key-groove-connection etc.

Statement " jacket casing member " especially should limit a casing member of housing shell at this, and it surrounds at least one housing shell of housing unit at least in part." partly surround " especially should be understood to, at least two of at least one inwall of jacket casing member mutual different, press from both sides into intersection point and parts that surrounded by the jacket casing member that are different from the face normal of 0 ° and 180 ° angle and be arranged on the same side of jacket casing member.The jacket casing member is preferably made by aluminium alloy.But also can expect, the jacket casing member is made by other material for the significant conduction of technical staff.Preferably, at least one housing shell of jacket casing member jacket housing unit greater than 1cm ², be preferably greater than 2cm ²And particularly preferably greater than 5cm ²Area.In particular, a zone of at least one housing shell of this housing unit of jacket casing member jacket, the driven unit of hand tool is received by this housing shell joint in this zone." driven unit " should especially be interpreted as a unit at this, and this unit is arranged on the power that will be produced by the driver element of hand tool and/or transmission of torque to a process tool and/or improves and/or reduce power and/or the torque that is produced by driver element.Preferably, driven unit comprises at least one tool fitting, and it can couple with process tool.Preferably, in order to produce power and/or torque by driver element, be the motion energy with heat energy, chemical energy and/or electric energy conversion.Particularly preferably, driver element is constructed to motor.

Statement " extending out from housing unit at least in part " especially should limit the extension size of parts on a direction that deviates from housing unit at this, it has at least one bearing of trend component, this bearing of trend component is substantially perpendicular at least the reference planes of the extension size gauge of housing unit is extended, wherein, these parts intersect with reference planes to the extension size gauge of housing unit at least." isolated location " especially should be understood to a unit at this, and it is arranged for and stops or avoid at conduction is pressed in a state at least parts and the electric current between no-voltage conductive component, especially power current at least basically.Isolated location preferably has high unit resistance (minimum 10 ¹⁰Ω cm) and have creep currents intensity less than 700 CTI value.By hand tool can advantageously use the jacket casing member of conduction according to design of the present invention, it is compared with the plastic casing element and can advantageously construct firmlyer.Can advantageously prevent voltage delay by isolated location in addition, especially when the process tool that is fixed on drive element by cuts off ampere wires, although the use of the jacket casing member that can conduct electricity is prevented to the full extent.Can advantageously reach thus and observe the European standard EN60745-1 that completes in October, 2011.Can realize operator's high security thus when the operation hand tool.

Suggestion in addition, the jacket casing member has at least one shape sealed zone, and this shape sealed zone is arranged for and produces with the shape sealed zone of the isolated component of isolated location that shape is sealed to be connected." the sealed connection of shape " especially should be understood to, these parts mutually recline towards apply each other a confining force that acts on the normal direction of these faces.In particular, these parts are in a geometry cooperation mutually.This can structurally realize isolated component fixing on the jacket casing member simply.Therefore can advantageously additionally save for isolated component is fixed on and have equally isolation characteristic or segregate parts additionally on the jacket casing member.

Preferably, the shape sealed zone of the sealed zone of the shape of jacket casing member and/or isolated component has at least one for generation of the sealed kayser nose of shape." kayser nose " especially should be understood to the parts be used to the spring of setting up the kayser connection in context, it is arranged for flexibly deflection when assembling.But also can expect, the shape sealed zone of the sealed zone of the shape of jacket casing member and/or isolated component has another kind of for technical staff's significant design that seems.By can advantageously realizing according to design of the present invention the connection that shape is sealed, sealed being connected at least two sealed directions of shape of at least basically extending mutual vertically of this shape produces confining force.

Suggestion in addition, isolated component is constructed to plastic components, especially thermosetting element or thermoplastic element.But also can expect, isolated component seems that for the technical staff significant material makes by another kind, such as being made by pottery etc.Owing to using an isolated component that is configured to plastic components, the isolated component of advantageously making to use cost.

Preferred this isolated component consists of circlewise." annular " especially should be understood to the geometry designs scheme of isolated component at this, and it is observed in a plane at least has the shape of annulus.Preferably, isolated component has the design of a hollow cylinder.But also can expect, isolated component has another kind of for technical staff seem significant design, for example polygonal design etc.By the large-area electric shield that can advantageously realize according to design of the present invention the jacket casing member.

Suggestion in addition, the jacket casing member has the zone of at least one hollow cylinder, and isolated component is set thereon.This can advantageously realize the simple assembling capacity of isolated component on the jacket casing member.

Advantageously isolated component extends beyond the jacket casing member in the axial direction in a confined state." exceed extending axially " this of especially should be understood to isolated component and extend size, observe along the axis of movement of drive element on a direction that departs from housing unit, this extends size and the reference planes to the extension size gauge of jacket casing member intersect, and the axis of movement that these reference planes are substantially perpendicular to drive element especially at least extends.But also can expect, isolated component seems that for the technical staff significant direction extends beyond the jacket casing member along another in conversion or additionally, for example along a direction that is substantially perpendicular at least the axis of movement extension of drive element.By can advantageously realizing the reliable electric insulation of jacket casing member according to design of the present invention, when for example gathering in the zone of borings at drive element or when being cut off due to ampere wires.

Suggestion in addition, the jacket casing member is arranged at least and surrounds the driving of housing unit and/or at least one subregion of driven bearing casing member fully along circumferencial direction.Preferably, circumferencial direction extends in the plane that an axis of movement that is substantially perpendicular at least drive element extends.Preferably, the jacket casing member surrounds a zone of driving and/or driven bearing casing member, and driven unit is bearing in driving and/or driven bearing casing member in this zone.At this, the jacket casing member preferably has a receiving area that is used for receiving such as depth stop, dust suction device, tripod etc.By can advantageously realizing stable housing unit according to design of the present invention, it advantageously is insulated in the zone of possible voltage jump.

Preferably, to arrange at interval greater than the distance of the 8mm subregion from housing unit is stretched with respect to drive element, observe by the direction of especially extending along the axis of movement that is substantially perpendicular at least drive element in the zone of the hollow cylinder of jacket casing member in confined state for the outer surface of jacket casing member.This can advantageously provide electric current creep path, and it can realize the reliable operability for operator's hand tool, when especially gathering in the zone of borings at drive element or because ampere wires is cut off.

The invention still further relates to a kind of for the toolroom machine casing device according to hand tool of the present invention.This toolroom machine casing device, especially machine hand tool housing device comprise at least one housing unit, it has at least one jacket casing member and driving and/or a driven bearing casing member that is surrounded at least in part by this jacket casing member of being made of conductive material, and this driving and/or driven bearing casing member are arranged at least one drive element that is made of conductive material of the driven unit that receives hand tool.The toolroom machine casing device comprises at least one isolated location in addition, it be arranged for make the jacket casing member at least with respect to one of drive element from the subregion electric insulation that drives and/or driven bearing casing member stretches out.This can advantageously reequip the hand tool that has existed in order to satisfy European standard EN60745-1 for the electric insulation of parts.

Should not be limited in above-mentioned application and embodiment according to hand tool of the present invention and/or according to toolroom machine casing device of the present invention at this.Especially described working method can have the quantity different from each element, parts and the element number mentioned here in order to satisfy here according to hand tool of the present invention and/or according to toolroom machine casing device of the present invention.

Description of drawings

Other advantage is drawn by the following drawings.One embodiment of the present of invention shown in the drawings.Accompanying drawing, specification and claim combine and contain large measure feature.The technical staff also conforms with the destination and considers separately these features and be combined into significant other combination.It illustrates:

Fig. 1 illustrates according to hand tool of the present invention with schematic diagram;

Fig. 2 illustrates decomposition view according to toolroom machine of the present invention with schematic diagram;

Fig. 3 illustrates detailed view according to the isolated location of toolroom machine of the present invention with schematic diagram.

The specific embodiment

Fig. 1 illustrates the hand tool 10 with at least one housing unit 12, and this housing unit has at least one jacket casing member 14 that is made of conductive material.Hand tool 10 is constructed to the hand held power machine that vibrates.This hand tool also comprises at least one driven unit 16, and driven unit has at least one by the drive element 18 that conductive material consists of, and drive element extends out from housing unit 12 at least in part.Drive element 18 is constructed to tool fitting 52.Housing unit 12 surrounds driven unit 16 and driver element 38 of hand tool 10, and this driver element is constructed to motor unit.Housing unit 12 comprises two

housing shells

40,42 at this, and they removably interconnect along a connection plane that is substantially perpendicular at least that axis direction 44 extends.But also can expect,

housing shell

40,42 seems that for the technical staff significant connection plane removably interconnects along another.Axis direction 44 extends (Fig. 3) at least substantially parallel to an axis of oscillation 46 that is constructed to the main shaft 50 of hollow spindle 48 of driven unit 16.Hand tool 10 has one thus at least basically for design known to the skilled.

Can fix a process tool (not being shown specifically at this) that is used for cutting ground processing work (not being shown specifically at this) on the drive element that is configured to tool fitting 52 18 of driven unit 16.Tool fitting 52 can not be connected with hollow spindle 48 by interference fit with relatively rotating, makes the oscillating motion of hollow spindle 48 can be delivered to (Fig. 3) on tool fitting 52.But also can expect, tool fitting 52 seems that for the technical staff significant mode is connected with hollow spindle 48 by another.Driven unit 16 is in this of being arranged at least substantially housing unit 32 consists of the driving and/or driven bearing casing member 32 of one of housing shell 40,42.At this, driving and/or driven bearing casing member 32 are arranged for the supporting force that supports driven unit 16.Jacket casing member 14 be arranged at least along circumferencial direction 34 surround fully at least one subregion of the driving of housing unit 12 and/or driven bearing casing member 32, especially wherein driven unit 16 be arranged on drive and/or driven bearing casing member 32 in the subregion.This jacket casing member 14 has the zone 30 of at least one hollow cylinder for this reason, and this zone surrounds the zone of a hollow cylinder of driving and/or driven bearing casing member 32 fully.Circumferencial direction 34 extends in one is substantially perpendicular to the plane that axis of oscillation 46 extends at least.

Jacket casing member 14 also has a FX 54, and this FX is extended along the direction of outer surface 36 extensions in the zone 30 of the open circles column type that is substantially perpendicular at least jacket casing member 14.FX 54 is configured to one with the zone 30 of hollow cylinder.In addition, FX 54 abut in a confined state driving that consists of as one of

seat housing shell

40,42 and/or driven bearing casing member 32 on a side of cutter holder 53.This FX 54 comprises that some are used to receive the fixedly dead slot 56 of retaining element 58 in addition.FX 54 altogether have four fixedly dead slot 56(two fixedly dead slots 56 only are shown in Fig. 1).But also can expect, FX 54 has a fixedly dead slot 56 that is different from the quantity of four.Retaining element 58 is constructed to screw.Being arranged at this retaining element 58 interconnects jacket casing member 14 and housing shell 40,42.Retaining element 58 is in this is received in fixedly dead slot 56, in order to be screwed into housing shell 40, one or two housing shells 40 of 42, screwed hole 64(Fig. 2 of 42) in.Thus these

housing shells

40,42 and jacket casing member 14 be fixedly connected to each other by the retaining element 58 that is configured to screw.

In addition, hand tool 10 has at least one isolated location 20, it be arranged for make jacket casing member 14 at least with respect to one of drive element 18 from subregion electric insulation that housing unit 12 stretches out.This isolated location 20 has at least one isolated component 26 for this reason, and this isolated component is constructed to plastic components.Isolated component 26 is arranged on the zone 30 of hollow cylinder of jacket casing member 14.Isolated component 26 consists of circlewise.For isolated component 26 is fixed on jacket casing member 14, isolated component 26 comprises a shape sealed regional 24.It is sealed regional 22 that this jacket casing member 14 has at least one shape at this, and it is arranged for and produces with the shape sealed regional 24 of the isolated component 26 of isolated location 20 that shape is sealed to be connected.Shape is sealed comprises a kayser nose 28 to the shape of isolated component 26 sealed regional 24 in order to produce.Kayser nose 28 is arranged for a kayser convex shoulder 60 corresponding with this kayser nose 28 of the shape that fastens from behind jacket casing member 14 sealed regional 22.But also can expect, the shape of jacket casing member 14 sealed regional 22 has a kayser nose and the shape of isolated component 26 sealed regional 24 has a kayser convex shoulder corresponding with the kayser nose.By shape sealed regional 24 the mating reaction of the shape of jacket casing member 14 sealed regional 22 with isolated component 26, produce the sealed connection of shape at least two sealed directions of shape of at least basically extending mutual vertically.In the sealed direction of these shapes one extends at the axis of oscillation 46 that this axis of oscillation 46 at least substantially parallel to hollow spindle 48 or drive element 18 extends and sealed direction of shape is substantially perpendicular to hollow spindle 48 or drive element 18 at least.

In a confined state, isolated component 26 axially extends beyond jacket casing member 14 with a subregion.The subregion that extends beyond jacket casing member 14 of isolated component 26 abuts in of jacket casing member 14 on the edge surface 62 of tool fitting 52 in confined state.Therefore, the subregion that extends beyond jacket casing member 14 of isolated component 26 forms the backstop of the kayser nose 28 of a shape sealed regional 24 that is used for isolated component 26 in the assembling of isolated component 26.

In addition, the outer surface 36 of jacket casing member 14 arranges greater than the distance of the 8mm subregion that extends beyond housing unit 12 with respect to the drive element 18 that is configured to tool fitting 52 at interval with one in confined state.The distance of outer surface 36 and tool fitting 52 is observed along the axis of oscillation 46 that is substantially perpendicular at least hollow spindle 48 or is configured to the drive element 18 of tool fitting 52.Therefore, can cut off ampere wires or realize the jacket casing member 14 that is consisted of by conductive material and the electric insulation that is configured to the drive element 18 of tool fitting 52 in the zone of drive element 18 when borings is gathered at the process tool (in the situation that this is not shown specifically) that is fixed on drive element 18 by by isolated component 26.

Claims

1. hand tool, it comprises: at least one housing unit (12), this housing unit have at least one jacket casing member (14) that is made of conductive material; With at least one driven unit (16), this driven unit has at least one drive element that is made of conductive material (18), this drive element extends out from housing unit (12) at least in part, it is characterized in that, comprise at least one isolated location (20), this isolated location is arranged for and makes jacket casing member (14) at least with respect to a subregion electric insulation that stretches out from housing unit (12) of drive element (18).

2. according to claim 1 hand tool, it is characterized in that, jacket casing member (14) has the sealed zone of at least one shape (22), and this shape sealed zone is arranged for and produces with the sealed zone of shape (24) of the isolated component (26) of isolated location (20) that shape is sealed to be connected.

3. according to claim 2 hand tool, it is characterized in that, the sealed zone of shape (22) of jacket casing member (14) and/or the sealed zone of shape (24) of isolated component (26) have at least one for generation of the sealed kayser nose (28) of shape.

4. at least according to claim 2 hand tool, is characterized in that, isolated component (26) is constructed to plastic components.

5. at least according to claim 2 hand tool, is characterized in that, isolated component (26) consists of circlewise.

6. at least according to claim 2 hand tool, is characterized in that, jacket casing member (14) has the zone (30) of at least one hollow cylinder, and isolated component (26) is arranged on the zone of this hollow cylinder.

7. at least according to claim 2 hand tool, is characterized in that, isolated component (26) extends beyond jacket casing member (14) in the axial direction in confined state.

8. according to the hand tool of one of above claim, it is characterized in that, jacket casing member (14) is arranged at least and surrounds the driving of housing unit (12) and/or at least one subregion of driven bearing casing member (32) fully along circumferencial direction (34).

9. according to the hand tool of one of above claim, it is characterized in that, the outer surface (36) of jacket casing member (14) in confined state to arrange at interval greater than the distance of the 8mm subregion from housing unit (12) is stretched with respect to drive element (18).

10. be used for the toolroom machine casing device according to the hand tool of one of above claim.