EP2106325B1 - Portable power tool, especially angle grinder, comprising a protective hood - Google Patents

Portable power tool, especially angle grinder, comprising a protective hood Download PDF

Info

Publication number
EP2106325B1
EP2106325B1 EP07820407A EP07820407A EP2106325B1 EP 2106325 B1 EP2106325 B1 EP 2106325B1 EP 07820407 A EP07820407 A EP 07820407A EP 07820407 A EP07820407 A EP 07820407A EP 2106325 B1 EP2106325 B1 EP 2106325B1
Authority
EP
European Patent Office
Prior art keywords
power tool
portable power
clamping
protective hood
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07820407A
Other languages
German (de)
French (fr)
Other versions
EP2106325A1 (en
Inventor
Cornelius Boeck
Joachim Schadow
Sinisa Andrasic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2106325A1 publication Critical patent/EP2106325A1/en
Application granted granted Critical
Publication of EP2106325B1 publication Critical patent/EP2106325B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04Protective covers for the grinding wheel
    • B24B55/05Protective covers for the grinding wheel specially designed for portable grinding machines
    • B24B55/052Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/06Grinders for cutting-off
    • B24B27/08Grinders for cutting-off being portable

Definitions

  • the invention relates to a power tool according to the preamble of claim 1 (see. DE 101 24 439 A1 ).
  • the guard is rotatably mounted on a nozzle of a flange of the angle grinder and releasably secured with only a single positive locking means.
  • the flange will pass centrally from the spindle of the angle grinder.
  • the spindle carries a separating or grinding disk, which can be tensely tensioned, for cutting and machining workpieces, which is partially encompassed by the protective hood.
  • the protective hood on the handheld power tool is to be positioned so that it can be adjusted in a rotational manner such that the area of the grinding wheel facing the user is encompassed by the protective hood.
  • the user points the way Area of grinding wheel for work piece engagement radially free beyond the flange.
  • the invention relates to a hand tool for a rotating, preferably disc-shaped tool, with a machine housing having a flange or a machine neck and with a protective cover which is releasably tensioned on the flange or machine neck for covering the tool and a protective hood or protective hood collar has the annular wearing a tension band, which is contractible by means of a clamping means and wherein an acting between flange or machine neck and protective rotation between guard and flange or machine neck is arranged in the form of a profiling.
  • the clamping means in its clamping position is repeatedly positively connected to the flange or machine neck and is in its release position out of shape with the flange or machine neck.
  • This can advantageously be ensured a secure connection of the guard with the machine neck of the machine housing, which can withstand high loads in a working process.
  • the guard is secured by means of profiling against rotation of the guard during operation of the power tool, so that in particular in the event of bursting of the tool, in particular a grinding wheel, the guard provides safe protection for the operator.
  • the protective hood is basically used in hand-held power tools with a rotating, preferably disc-shaped tool, such as a grinding wheel, cutting disc and / or polishing pad, and particularly advantageous in an angle grinder used.
  • a "flange or a machine neck” is to be understood as meaning a region of the handheld power tool which serves to receive and / or fix the protective hood, which at least partially encloses a tool, on the handheld power tool.
  • This flange or machine neck can either be made in one piece with the hand tool or be formed by a separate component.
  • a "guard hood or protective hood collar” arranged or molded onto the protective hood is to be understood here to mean a region extending preferably perpendicular to a main extension plane of the protective hood, which is provided for attachment to a flange or machine neck of the handheld power tool.
  • This protective hood or guard collar is advantageously carried out in one piece with a base body of the guard.
  • a “tension band” is to be understood here as meaning a band, particularly advantageously a metal band, which abuts a partial area of the protective hood, such as a protective hood, in particular for fastening the protective hood to the handheld power tool and / or in particular under a tension force. or positively encloses.
  • a “tensioning means” should be understood to mean, in particular, a means having a circumference, in particular of the tensioning band, via a tensioning process, such as, for example, a folding over of a lever, a tightening of a Screw or any other skilled in the art appear appropriate process, reduced.
  • a "profiling” is to be understood as meaning a shape, such as a hole structure, an edge and / or an inner embossing, which has a profile and / or a contour whose geometry is dependent on a function of the anti-twist device.
  • a “clamping position” is to be understood here as meaning a position of the tension band in which the tension band with another component is a connection under a particular mechanical tension, such as, for example, a connection based on positive engagement, in particular with the flange or the machine neck Hand tool, received. Accordingly, a release position refers to a position of the tension band in which a clamping connection between the tension band and the other component is canceled.
  • FIG. 1 is a trained by an angle grinder hand tool 10 is shown in a view from above.
  • the angle grinding machine comprises a machine housing 14 and a main handle 66 integrated in the machine housing 14.
  • the main handle 66 extends on a side 68 facing away from a tool 12 formed by a cutting disk in the direction of a longitudinal direction 70 of the angle grinding machine.
  • an auxiliary handle 74 is arranged on this, which extends transversely to the longitudinal direction 70 of the angle grinder.
  • the power tool 10 has a protective hood 18 which partially surrounds the tool 12 in a circumferential direction 76 of the tool 12.
  • FIGS. 2a and 2b is a tool 12 facing portion of the power tool 10 and the machine housing 14 with a spindle 82 which is rotatable about a spindle axis 78 shown.
  • the spindle 82 transmits a drive torque from a motor, not shown, of the power tool 10 to the tool 12.
  • the portion has a flange 16 formed by a machine neck, which is fixedly connected to the machine housing 14.
  • the flange 16 has centrally, in the region of the spindle 82, a circular recess 80, through which the spindle 82 is guided in an assembled state of the flange 16 to the machine housing 14.
  • the spindle 82 projects beyond the flange 16 in an axial direction 84 that is perpendicular to the longitudinal direction 70 of the power tool 10. Furthermore, the flange 16 in a radial direction 86 outwardly to a tooth profile, the tooth-like, extending in the radial direction 86 outwardly extending teeth 58 and tooth gap-like, in the radial direction 86 inwardly extending recesses 38 and tooth gaps.
  • the teeth are also puzzle-like or undercut in the radial direction 86 inwardly (see also Figures 2a to 3b ).
  • the tooth profile is provided as a counter tooth profile 36 for coupling to a corresponding tooth profile 34 of the protective hood 18 (cf. FIGS. 5a, 5b and 5c). Furthermore, the counter tooth profile covers an area in the circumferential direction 76 of approximately 270 ° (FIG. FIGS. 2, 2b . 3a and 3b ).
  • an orientation spring 62 is arranged in an area 88 of the flange 16, which has a smooth, tooth profile contour in the circumferential direction 76.
  • the orientation spring 62 has the task of defining a precisely defined insertion position of the protective cover 18 when mounting the protective cover 18 with respect to the flange 16.
  • the orientation spring 62 is formed by a bent spring steel sheet.
  • the orientation spring 62 in the circumferential direction 76 at end regions 90 each have two support elements 92.
  • the support elements 92 are arranged on the end regions 90 of the orientation spring 62 in the radial direction 86 to the outside (see. FIGS. 3a and 4 ).
  • this has a recess 94 which extends in the circumferential direction 76 and has a length which corresponds to a length of the orientation spring 62 ( FIG. 3a ).
  • the orientation spring 62 is supported within the recess 94 of the flange 16, wherein the support elements 92 engage through recesses 138 on a bottom 142 and a top 144 of the flange 16, so that the orientation spring 62 against falling out of the flange 16 is secured ( FIGS. 2a, 2b and 3b ).
  • this U-shaped wherein the U-shaped portion 96 extends radially outward ( FIGS. 2b . 3a and 4 ). In this way, the U-shaped portion 96 protrudes in a mounted position of the orientation spring 62 radially outwardly beyond the smooth, non-profiled portion 88 of the flange 16 ( Figures 2b and 3a).
  • FIGS. 5a and 5b show the power tool 10 with a mounted on the flange 16 protective cover 18, wherein the protective cover 18 is arranged on the flange 16 without auxiliary tool easily detachable and rotationally adjustable.
  • the protective hood 18 comprises a disk-shaped main body 146 which, in the circumferential direction 76, covers a partial circle of approximately 180 ° of the tool 12 and is arranged centrically around the spindle 82.
  • the protective hood 18 comprises a protective hood stub 20 formed by a protective hood collar.
  • a clamping band 22 is arranged around the protective hood stub 20, which can be contracted by a tensioning means 24 and thereby prevents rotation by means of a profiling 26 between the flange 16 and the protective hood 18.
  • end portions 98, 100 of the clamping band 22 are bent outward in the circumferential direction 76 and each form a lug 102, 104 formed by a pivot point, which are provided to an arrangement of the clamping means 24 with the clamping band 22 ( FIG. 6 ).
  • An arcuate design of the tabs 102, 104 namely bent from outside to inside, reduce and / or prevent bending of the tabs 102, 104 in the case of load ( FIGS. 5a, 5b and 6 ).
  • a fixation eg welded, riveted, etc.
  • unfixed ends 106 of the tabs 102, 104 are also conceivable which, together with the tensioning band 22, allow suspension of the tensioning band 22.
  • the design of the tabs 102, 104 of the tension band 22 can be realized as bent, bent and fixed against expansion or bent from outside to inside.
  • the clamping means 24 is repeatedly positively connected in a clamping position with the flange 16 formed by the machine neck ( FIGS. 5a and 5b ). In a release position, the clamping means 24 is out of positive engagement with the flange 16.
  • the clamping means 24 consists of clamping levers 28, 30, which form a toggle lever system 44.
  • the clamping levers 28, 30 are formed by a rocker 40 and a locking bolt 42.
  • the rocker 40 is movably mounted in the lug 102 of the tension band 22 with an end region 108 facing away from the locking bolt 42 via a bearing pin 110 about an axis of rotation which runs parallel or coaxially to the bearing pin 110.
  • the rocker 40 or an end portion 118 of the rocker 40 facing the locking bolt 42 and a region 120 of the locking bolt 42 are rotatably supported relative to one another.
  • the region 120 of the closure bar 42 is arranged after the end region 114 for storage in the tab 104 of the tension band 22 along the closure bar 42 in a direction away from the swing arm 40.
  • the rocker 40 and the locking bolt 42 each have rear engagement means 32, 60 which are formed by a tooth profile 34 which forms the profiling 26 with the counter tooth profile 36 of the flange 16.
  • the tooth profile 34 is provided for engagement in the counter-tooth profile 36 or in the recesses 38 of the flange 16 for the purpose of a torsion-proof positive connection between the protective cover 18 and the flange 16.
  • the rear gripping means 32, 60 or the tooth profile 34 is arranged on a flange 16 facing side 122 of the locking bar 42 and the rocker 40.
  • the rocker 40 in this case has three rear engagement means 32 and the locking bolt 42 has two rear engagement means 60 ( FIG. 7c ).
  • the locking bar 42 facing the rear gripping means 32 of the rocker 40 engages in a clamping position in the same recess 38 of the counter-tooth profile 36 as the rocker 40 facing behind gripping means 60 of the locking bolt 42.
  • the tension band 22 has a recess 124 in the region of the closure bolt 42 (FIG. FIG. 7b ), which extends in the circumferential direction 76 on the clamping band 22. Through the recess 124 engage the rear gripping means 60 of the locking bolt 42 and form with the opposing tooth profile 36 of the flange 16 a positive connection during a clamping position ( FIGS. 5a and 5b ).
  • a recess 124 and a plurality of recesses in the clamping band 22 are possible, which are each provided only for a tooth 126 of the tooth profile 34 of the closure bolt 42.
  • a width of teeth 126 of the tooth profile 34 is adapted to a width of the recesses 38 of the counter-tooth profile 36.
  • the rocker 40 and the locking latch 42 are provided with holes 50 for weight reduction.
  • One or more of the rear gripping means 32, 60 may also be formed ahead of the rest of the rear gripping means 32, 60 in the event of loading and thus touch the flange 16 earlier.
  • An angle at contact surfaces of the rear gripping means 32, 60 and recesses 38 are designed in the leading rear gripping means 32, 60 so that they act in the case of a bursting tool 12, in particular a grinding or cutting disc, pulling and so an operator maximum protection in Operation of the power tool 10 learns.
  • the protective cover 18 can be locked to the flange 16 in a fixed position.
  • a mounting position in the circumferential direction 76 can be set by an operator and maximum protection for the operator can be achieved.
  • the opposing tooth profile 36 of the flange 16 is limited in the circumferential direction 76 to a range of about 270 °, the opposing tooth profile 36 forms a coding means, so that an impermissible Position of the protective cover 18 can be prevented on the flange 16 and a closing of the toggle lever system 44 in the region 88 is prevented without counter-toothed profile 36.
  • a guard edge 148 is loaded together with the protective hood 18 by flying tool parts.
  • tearing forces and rotational forces occur on the protective hood 18, wherein undesired rotation of the protective hood 18 is prevented by means of the form-locking connection of the clamping device 24 with the flange 16.
  • the tearing forces on the protective hood 18 and the tensioning band 22 act radially outward, as a result of which the locking bolt 42 and the rocker 40 or the toothed profile 34 engage in the recesses 38 or the counter tooth profile 36 of the flange 16 all the more firmly and thus dynamically Locking closure is created with highly effective anti-rotation.
  • a closing force or a clamping force of the clamping band 22 can be adjusted together with the clamping means 24 for an operator.
  • this also a clamping band length can be adjusted, such as to compensate for manufacturing tolerances.
  • the tension band 22 has a half loop 46 which is realized in the circumferential direction 76 by a contour of the tension band 22 bent radially outward and then radially inwardly ( Figures 6, 7a and 7b ).
  • the half-loop 46 has a recess 128, through which an adjusting element in the form of a screw 48 engages and is screwed to a nut 130. The tighter the nut 130 is bolted to the screw 48, the tighter a strap diameter or larger becomes the clamping force.
  • tension band 22 deviating from the half loop 46 is possible at any time, such as a two-part design of the tension band 22 with two tension band elements, wherein the two tension band elements can be connected to one another by means of the adjustment element and thus a tension force or a tension band diameter can be adjusted.
  • adjustability can be influenced by a number of adjusting elements and / or an embodiment of the adjusting elements and / or a position of the adjusting elements.
  • the tension band 22 is inextricably disposed on the guard neck 20 over a range of 180 °. But it can also be attached over only a portion of eg 90 °, leaving the remaining portion of the tension band 22 free and stretchable.
  • the tension band 22 can also be fixed at only one point.
  • FIGS. 7a . 7b and 7c is the guard 18 with the clamping band 22 and the clamping means 24 in a clamping position ( FIGS. 7a and 7c ) and in a release position ( FIG. 7b ).
  • the guard hood 20 of the protective hood 18, which is surrounded on a radially outwardly directed surface 132 of the clamping band 22, has perpendicular to the circumferential direction 76 extending, wave-like or hollow-tooth-like forms 52.
  • a region 56 of the clamping band 22 abutting against the protective hood stub 20 also has wave profile-like or hollow-tooth-like characteristics 54 (FIG. FIG. 6 ).
  • the hollow gear-like shapes 52 of the protective hood stub 20 have the main function of a Verdresterasterung the orientation spring 62 at an intended protective hood adjustment ( FIG. 8 ). Upon rotation of the protective cover 18, the orientation spring 62 engages from one to the next expression 52.
  • the forms 52 correspond to the opposing tooth profile 36 of the flange 16 and constitute a, in particular coded, positioning aid.
  • the orientation spring 62 mounted in the flange 16 is assigned a V-shaped impression 64 at a defined location in the tension band 22 (FIG. FIG. 6 ).
  • FIGS. 9a and 14 Alternative embodiments are shown. Substantially identical components, features and functions are basically numbered by the same reference numerals. The following description is essentially limited to the differences from the embodiment in the FIGS. 1 to 8 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIGS. 1 to 8 can be referenced.
  • FIGS. 9a and 9b an alternative embodiment of an orientation spring 150 is shown.
  • a middle, U-shaped Partial region 152 of the orientation spring 150 has, in each case, a curvature 154 in the circumferential direction 76 (FIG. FIG. 10a ) extending bead 156 in the form of notches, which cause a reinforcement of the portion 152.
  • in the circumferential direction 76 left and right of the portion 152 each have a further, U-shaped region 158 arranged to support suspension during assembly of a protective cover 18 to a flange 160 of a power tool 10.
  • In the circumferential direction 76 are at ends 162 of the orientation spring 150 enlarged mounting portions 164 arranged for attachment to the flange 160.
  • beads 166 which are formed by indentations and which extend perpendicular to the circumferential direction 76, are embossed in the attachment regions 164.
  • the attachment regions 164 extend perpendicular to the circumferential direction 76 and perpendicular to a radial direction 86 (FIG. Figures 10a and 10b ).
  • the orientation spring 150 is inserted into a receiving portion 168 of the flange 160, and the flange 160 is plastically deformed in portions of the attachment portions 164 of the orientation spring 150 and pressed against the orientation spring 150.
  • the orientation spring 150 is fixedly connected at its ends 162 to the flange 160.
  • the receiving region 168 extends in the circumferential direction 76 on the flange 160 (FIG. Figures 10a and 10b ).
  • Additional retaining elements 170 of the flange 160 which are arranged in the circumferential direction 76 to the left and right of the central, U-shaped portion 152 of the orientation spring 150, hold the orientation spring 150 in an advantageous starting position, which allows mounting of the protective cover 18 on the flange 160 and one Damage to the orientation spring 150 prevented.
  • the holding elements 170 together with a radially inwardly facing wall 174 of the flange 160 limit a spring travel 176 of the orientation spring 150 in a radial direction 86 during assembly of the protective hood 18.
  • FIGS. 11a and 12b is a to the toggle system 44 of the FIGS. 2 to 8 alternative tensioning system 200 shown.
  • the tensioning system 200 has a tensioning strap 202, a rocker 206 formed by a tensioning part 204, and a tensioning means 210 formed by a screw 208.
  • an end 212 of the clamping band 202 is bent radially outward and provided with a recess 214 for receiving the screw 208.
  • the rocker 206 includes a receiving portion 216 with a thread formed by mating thread to the screw 208 so that by means of the screw 208, the rocker 206 and the strap 202, a protective cover 18 can be secured in a clamping position on a flange 16.
  • the thread is introduced into oppositely and flushly curved, formed by portions forms 220 of the rocker 206, wherein the portions of the receiving portion 216 along a longitudinal extension 222 of the receiving portion 216 alternately, half-bow-like manner on opposite sides 224, 226 of the screw 208 ( FIG. 12b ).
  • the mating thread is centrally introduced into a sheet thickness determining side 228 of the rocker 206.
  • the end 212 has a screw lock 230 by bending end regions 232 of the end 212 in the direction 234 of a screw head 236 of the screw 208, so that this in the radial direction 86 inside the recess 214 is fixed.
  • a pivot point or bearing point of the rocker 206 is disposed on an end 238 of the rocker 206 facing away from the screw 208 or on the end 240 of the tension band 202 facing the rocker 206.
  • the recess 214 of the end 212 of the clamping band 202 in the radial direction 86 outwardly open, so that the screw 208 can be folded together with the rocker 206 to the outside and formed by teeth 244 rear gripping means 242 of the rocker 206 one of recesses 38th released counter tooth profile 36 of the flange 16 release. Closure of the tensioning system 200 takes place in a reverse order.
  • FIG. 13 is one to the FIGS. 11a to 12b alternative embodiment of the rocker 260 shown.
  • the rocker 260 has an end portion formed by an end tab 262 which extends perpendicular to a main extension surface 264 of the rocker 260 thereon.
  • This end region has a recess 266 with a thread for a clamping means 210 formed by a screw 208, so that by means of the rocker 260, the screw 208 and a clamping band 202, a protective cover 18 can be clamped to a flange 16 of a hand tool 10.
  • a nut may also be arranged in the end region.
  • FIG. 14 is an alternative of a clamping member 280 formed rocker 282 to the FIGS. 11a to 13 shown.
  • the rocker 280 includes two half rockers 284, 286, each having a half thickness 288 of the rocker 282.
  • the rocker 282 has a receiving area 290 with a thread 292 for a clamping device 210 formed by a screw 208, wherein the half-rockers 284, 286 are formed in the receiving area 290 semi-arcuate for receiving the screw 208.
  • the thread 292 is centered in a sheet thickness determining side 294 of the rocker 282 introduced.
  • the half-wings 284, 286 by simple embossing a desired pitch shape and / or storage according to the screw 208 and the clamping means 210 form.

Abstract

The invention relates to a portable power tool for a rotating, preferably disk-shaped tool (12). Said portable power tool comprises a machine housing (14), having a flange (16, 160) or a machine neck, and a protective hood (18) that can be detachably tensioned on the machine neck to cover the tool (12) or that has a protective hood neck (20) or protective hood collar that annularly carries a tightening strap (22). Said strap can be tightened by tensioning means (24). An anti-rotation lock effective between the machine neck and the protective hood (18) is interposed between the protective hood (18) and the machine neck in the form of a profiled structure (26). The invention is characterized in that the tensioning means (24), in its tensioned position, can be connected several times in a form fit to the machine neck and in its detached positioned is no longer connected in a form fit to the machine neck.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von Handwerkzeugmaschine nach dem Oberbegriff des Anspruchs 1 (vgl. DE 101 24 439 A1 ).The invention relates to a power tool according to the preamble of claim 1 (see. DE 101 24 439 A1 ).

Aus der EP 0 812 657 A1 ist bereits ein Winkelschleifer mit verstellbarer Schutzhaube bekannt. Dabei ist die Schutzhaube auf einem Stutzen eines Flansches des Winkelschleifers drehverstellbar und mit nur einem einzigen formschlüssigen Arretiermittel lösbar festlegbar gelagert. Der Flansch wird mittig von der Spindel des Winkelschleifers durchtreten. Die Spindel trägt an ihrem freien Ende drehmitnehmbar spannbar eine Trenn- bzw. Schleifscheibe zum Schneiden und Bearbeiten von Werkstücken, die von der Schutzhaube teilweise umgriffen wird. Dabei ist die Schutzhaube an der Handwerkzeugmaschine so dreheinstellbar zu positionieren, dass der dem Anwender zugewandte Bereich der Schleifscheibe von der Schutzhaube umgriffen wird. Zugleich steht ein vom Anwender wegweisender Bereich der Schleifscheibe zum Werkstückeingriff radial frei über den Flansch hinaus.From the EP 0 812 657 A1 already an angle grinder with adjustable protective hood is known. In this case, the guard is rotatably mounted on a nozzle of a flange of the angle grinder and releasably secured with only a single positive locking means. The flange will pass centrally from the spindle of the angle grinder. At its free end, the spindle carries a separating or grinding disk, which can be tensely tensioned, for cutting and machining workpieces, which is partially encompassed by the protective hood. In this case, the protective hood on the handheld power tool is to be positioned so that it can be adjusted in a rotational manner such that the area of the grinding wheel facing the user is encompassed by the protective hood. At the same time, the user points the way Area of grinding wheel for work piece engagement radially free beyond the flange.

Vorteile der ErfindungAdvantages of the invention

Die Erfindung geht aus von einer Handwerkzeugmaschine für ein rotierendes, vorzugsweise scheibenförmiges Werkzeug, mit einem Maschinengehäuse, das einen Flansch bzw. einen Maschinenhals aufweist und mit einer Schutzhaube, die an dem Flansch bzw. Maschinenhals zum Abdecken des Werkzeugs lösbar spannbar ist und die einen Schutzhaubenstutzen bzw. Schutzhaubenkragen aufweist der ringförmig ein Spannband trägt, das mittels eines Spannmittels zusammenziehbar ist und wobei eine zwischen Flansch bzw. Maschinenhals und Schutzhaube wirkende Verdrehsicherung zwischen Schutzhaube und Flansch bzw. Maschinenhals in Gestalt einer Profilierung angeordnet ist.The invention relates to a hand tool for a rotating, preferably disc-shaped tool, with a machine housing having a flange or a machine neck and with a protective cover which is releasably tensioned on the flange or machine neck for covering the tool and a protective hood or protective hood collar has the annular wearing a tension band, which is contractible by means of a clamping means and wherein an acting between flange or machine neck and protective rotation between guard and flange or machine neck is arranged in the form of a profiling.

Es wird vorgeschlagen, dass das Spannmittel in seiner Spannposition mehrfach formschlüssig mit dem Flansch bzw. Maschinenhals verbindbar ist und in seiner Löseposition außer Formschluss mit dem Flansch bzw. Maschinenhals steht. Hierdurch kann vorteilhaft eine sichere Verbindung der Schutzhaube mit dem Maschinenhals des Maschinengehäuses gewährleistet werden, die hohen Belastungen in einem Arbeitsprozess standhalten kann. Die Schutzhaube ist mittels der Profilierung gegen ein Verdrehen der Schutzhaube im Betrieb der Handwerkzeugmaschine gesichert, so dass insbesondere im Falle eines Berstens des Werkzeugs, insbesondere einer Schleifscheibe, die Schutzhaube einen sicheren Schutz für den Bediener bietet. Die Schutzhaube ist grundsätzlich bei Handwerkzeugmaschinen mit einem rotierenden, vorzugsweise scheibenförmigen Werkzeug, wie einer Schleifscheibe, Trennscheibe und/oder Polierscheibe, und besonders vorteilhaft bei einem Winkelschleifer einsetzbar.It is proposed that the clamping means in its clamping position is repeatedly positively connected to the flange or machine neck and is in its release position out of shape with the flange or machine neck. This can advantageously be ensured a secure connection of the guard with the machine neck of the machine housing, which can withstand high loads in a working process. The guard is secured by means of profiling against rotation of the guard during operation of the power tool, so that in particular in the event of bursting of the tool, in particular a grinding wheel, the guard provides safe protection for the operator. The protective hood is basically used in hand-held power tools with a rotating, preferably disc-shaped tool, such as a grinding wheel, cutting disc and / or polishing pad, and particularly advantageous in an angle grinder used.

In diesem Zusammenhang soll unter einem "Flansch bzw. einem Maschinenhals" ein Bereich der Handwerkzeugmaschine verstanden werden, der zur Aufnahme und/oder zur Befestigung der Schutzhaube, die zumindest teilweise ein Werkzeug umschließt, an der Handwerkzeugmaschine dient. Dieser Flansch bzw. Maschinenhals kann entweder einstückig mit der Handwerkzeugmaschine ausgeführt sein oder durch ein separates Bauteil gebildet werden. Unter einem an der Schutzhaube angeordneten bzw. angeformten "Schutzhaubenstutzen bzw. Schutzhaubenkragen" soll hier ein bevorzugt sich senkrecht zu einer Haupterstreckungsebene der Schutzhaube erstreckender Bereich verstanden werden, der zu einer Befestigung an einem Flansch bzw. Maschinenhals der Handwerkzeugmaschine vorgesehen ist. Dieser Schutzhaubenstutzen bzw. Schutzhaubenkragen ist vorteilhaft einstückig mit einem Grundkörper der Schutzhaube ausgeführt. Unter einem "Spannband" soll hier ein Band, besonders vorteilhaft ein Metallband, verstanden werden, das insbesondere zur Befestigung der Schutzhaube an der Handwerkzeugmaschine um einen Teilbereich der Schutzhaube, wie etwa einen Schutzhaubenstutzen, anliegt und insbesondere unter einer Spannkraft den Teilbereich kraft- und/oder formschlüssig umschließt. Ferner soll unter einem "Spannmittel" insbesondere ein Mittel verstanden werden, das einen Umfang, insbesondere des Spannbands, über einen Spannprozess, wie beispielsweise einem Umklappen eines Hebels, einem Anziehen einer Schraube oder einem anderen dem Fachmann als zweckdienlich erscheinenden Prozess, verkleinert. Ferner soll unter einer "Profilierung" eine Form, wie beispielsweise eine Lochstruktur, eine Kante und/oder eine Innenausprägung verstanden werden, die ein Profil und/oder eine Kontur aufweist, deren Geometrie abhängig von einer Funktion der Verdrehsicherung ist. Es ist aber auch eine andere dem Fachmann als sinnvoll erscheinende Verdrehsicherung denkbar. Unter einer "Spannposition" soll hierbei eine Position des Spannbands verstanden werden, in der das Spannband mit einem weiteren Bauteil eine unter einer insbesondere mechanischen Spannung stehende Verbindung, wie beispielsweise eine auf einen Formschluss basierende Verbindung, wie insbesondere mit dem Flansch bzw. dem Maschinenhals der Handwerkzeugmaschine, eingeht. Demzufolge bezeichnet eine Löseposition eine Position des Spannbands, bei der eine Spannverbindung zwischen dem Spannband und dem weiteren Bauteil aufgehoben ist.In this context, a "flange or a machine neck" is to be understood as meaning a region of the handheld power tool which serves to receive and / or fix the protective hood, which at least partially encloses a tool, on the handheld power tool. This flange or machine neck can either be made in one piece with the hand tool or be formed by a separate component. A "guard hood or protective hood collar" arranged or molded onto the protective hood is to be understood here to mean a region extending preferably perpendicular to a main extension plane of the protective hood, which is provided for attachment to a flange or machine neck of the handheld power tool. This protective hood or guard collar is advantageously carried out in one piece with a base body of the guard. A "tension band" is to be understood here as meaning a band, particularly advantageously a metal band, which abuts a partial area of the protective hood, such as a protective hood, in particular for fastening the protective hood to the handheld power tool and / or in particular under a tension force. or positively encloses. Furthermore, a "tensioning means" should be understood to mean, in particular, a means having a circumference, in particular of the tensioning band, via a tensioning process, such as, for example, a folding over of a lever, a tightening of a Screw or any other skilled in the art appear appropriate process, reduced. Furthermore, a "profiling" is to be understood as meaning a shape, such as a hole structure, an edge and / or an inner embossing, which has a profile and / or a contour whose geometry is dependent on a function of the anti-twist device. However, it is also conceivable another twist lock which appears to be appropriate to the person skilled in the art. A "clamping position" is to be understood here as meaning a position of the tension band in which the tension band with another component is a connection under a particular mechanical tension, such as, for example, a connection based on positive engagement, in particular with the flange or the machine neck Hand tool, received. Accordingly, a release position refers to a position of the tension band in which a clamping connection between the tension band and the other component is canceled.

Zeichnungdrawing

Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt.Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown.

Es zeigen:

Fig. 1
eine erfindungsgemäße Handwerkzeugmaschine mit einer Schutzhaube in einer schematischen Dar- stellung,
Fig. 2a, 2b
ein Teilbereich der Handwerkzeugmaschine mit einem Maschinengehäuse und einem Maschi- nenhals in zwei unterschiedlichen, perspekti- vischen Ansichten,
Fig. 3a, 3b
der Flansch mit einer Orientierungsfeder in zwei unterschiedlichen Ansichten,
Fig. 4
die Orientierungsfeder in einer perspektivi- schen Ansicht,
Fig. 5a, 5b
der Teilbereich der Handwerkzeugmaschine mit dem Maschinengehäuse und der montierten Schutzhaube (Fig. 5a) und eine Detaildarstel- lung eines Befestigungsbereichs (Fig. 5b) in einer perspektivischen Ansicht,
Fig. 6
das Spannband in einer perspektivischen An- sicht,
Fig. 7a, 7b, 7c
die Schutzhaube mit einem Spannband und einem Kniehebelsystem in einer Spannposi- tion (Fig. 7a, 7c) und einer Löseposition (Fig. 7b) in jeweils einer perspektivischen Ansicht,
Fig. 8
die Schutzhaube mit der Orientierungsfeder in einer perspektivischen Ansicht,
Fig. 9a, 9b
eine alternative Ausgestaltung der Orien- tierungsfeder in einer perspektivischen An- sicht (Fig. 9a) und einer Ansicht von oben (Fig. 9b),
Fig. 10a, 10b
die Orientierungsfeder aus den Figu- ren 9a und 9b innerhalb eines Flansches ange- ordnet in einer perspektivischen Ansicht (Fig. 10a) und einer Ansicht von oben (Fig. 10b),
Fig. 11a, 11b
ein Teilbereich der Handwerkzeugma- schine mit einer montierten Schutzhaube mit einem alternativen Verschlusselement in einer perspektivischen Ansicht,
Fig. 12a, 12b
die Schutzhaube aus den Figuren 9a und 9b mit dem alternativen Verschlusselement in einer perspektivischen Ansicht und einer Seitenansicht,
Fig. 13
eine alternative Ausgestaltung einer Schwinge in einer perspektivischen Ansicht und
Fig. 14
eine weitere Ausgestaltung der Schwinge in ei- ner perspektivischen Ansicht.
Show it:
Fig. 1
a hand tool according to the invention with a protective hood in a schematic representation,
Fig. 2a, 2b
a subregion of the handheld power tool with a machine housing and a machine neck in two different, perspective views,
Fig. 3a, 3b
the flange with an orientation spring in two different views,
Fig. 4
the orientation spring in a perspective view,
Fig. 5a, 5b
the sub-area of the power tool with the machine housing and the mounted protective hood ( Fig. 5a ) and a detailed representation of a fixing area ( Fig. 5b ) in a perspective view,
Fig. 6
the strap in a perspective view,
Fig. 7a, 7b, 7c
the protective hood with a tension band and a toggle lever system in a clamping position ( Fig. 7a, 7c ) and a release position ( Fig. 7b ) in each case in a perspective view,
Fig. 8
the protective hood with the orientation spring in a perspective view,
Fig. 9a, 9b
an alternative embodiment of the orientation spring in a perspective view ( Fig. 9a ) and a view from above ( Fig. 9b )
Fig. 10a, 10b
the orientation spring from the FIGS. 9a and 9b within a flange arranged in a perspective view ( Fig. 10a ) and a view from above ( Fig. 10b )
Fig. 11a, 11b
a partial area of the hand-held power tool with a mounted protective hood with an alternative closure element in a perspective view,
Fig. 12a, 12b
the protective cover from the FIGS. 9a and 9b with the alternative closure element in a perspective view and a side view,
Fig. 13
an alternative embodiment of a rocker in a perspective view and
Fig. 14
a further embodiment of the rocker in a perspective view.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In Figur 1 ist eine von einer Winkelschleifmaschine ausgebildete Handwerkzeugmaschine 10 in einer Ansicht von oben dargestellt. Die Winkelschleifmaschine umfasst ein Maschinengehäuse 14 und einen im Maschinengehäuse 14 integrierten Haupthandgriff 66. Der Haupthandgriff 66 erstreckt sich an einer einem von einer Trennscheibe gebildeten Werkzeug 12 abgewandten Seite 68 in Richtung einer Längsrichtung 70 der Winkelschleifmaschine. An einem vorderen, werkzeugnahen Bereich 72 der Winkelschleifmaschine ist an dieser ein Zusatzhandgriff 74 angeordnet, der sich quer zur Längsrichtung 70 der Winkelschleifmaschine erstreckt. Zu einem Schutz eines Bedieners weist die Handwerkzeugmaschine 10 eine Schutzhaube 18 auf, die das Werkzeug 12 teilweise in eine Umfangsrichtung 76 des Werkzeugs 12 umgibt.In FIG. 1 is a trained by an angle grinder hand tool 10 is shown in a view from above. The angle grinding machine comprises a machine housing 14 and a main handle 66 integrated in the machine housing 14. The main handle 66 extends on a side 68 facing away from a tool 12 formed by a cutting disk in the direction of a longitudinal direction 70 of the angle grinding machine. At anterior, tool-near area 72 of the angle grinder an auxiliary handle 74 is arranged on this, which extends transversely to the longitudinal direction 70 of the angle grinder. For the protection of an operator For example, the power tool 10 has a protective hood 18 which partially surrounds the tool 12 in a circumferential direction 76 of the tool 12.

In den Figuren 2a und 2b ist ein dem Werkzeug 12 zugewandter Teilbereich der Handwerkzeugmaschine 10 bzw. des Maschinengehäuses 14 mit einer Spindel 82, die um eine Spindelachse 78 rotierbar ist, dargestellt. Die Spindel 82 überträgt im Betrieb der Handwerkzeugmaschine 10 ein Antriebsmoment von einem nicht näher dargestellten Motor der Handwerkzeugmaschine 10 auf das Werkzeug 12. Zudem weist der Teilbereich einen von einem Maschinenhals gebildeten Flansch 16 auf, der fest mit dem Maschinengehäuse 14 verbunden ist. Der Flansch 16 weist mittig, im Bereich der Spindel 82 eine kreisförmige Ausnehmung 80 auf, durch die die Spindel 82 in einem montierten Zustand des Flansches 16 an das Maschinengehäuse 14 geführt ist. Die Spindel 82 ragt in eine axiale Richtung 84, die senkrecht zur Längsrichtung 70 der Handwerkzeugmaschine 10 verläuft, über den Flansch 16 hinaus. Des Weiteren weist der Flansch 16 in einer radialen Richtung 86 nach außen ein Zahnprofil auf, das zahnartige, sich in radialer Richtung 86 nach außen erstreckende Zähne 58 bzw. zahnlückenartige, sich in radialer Richtung 86 nach innen erstreckende Ausnehmungen 38 bzw. Zahnlücken umfasst. Die Zähne sind zudem puzzleartig bzw. in radialer Richtung 86 nach innen hinterschnitten ausgebildet (siehe hierzu auch Figuren 2a bis 3b). Das Zahnprofil ist als ein Gegenzahnprofil 36 zur Kopplung mit einem dazu korrespondierenden Zahnprofil 34 der Schutzhaube 18 vorgesehen (vgl. Figuren 5a, 5b und 5c). Des Weiteren deckt das Gegenzahnprofil 36 einen Bereich in Umfangsrichtung 76 von ca. 270° ab (Figuren 2, 2b, 3a und 3b).In the FIGS. 2a and 2b is a tool 12 facing portion of the power tool 10 and the machine housing 14 with a spindle 82 which is rotatable about a spindle axis 78 shown. During operation of the power tool 10, the spindle 82 transmits a drive torque from a motor, not shown, of the power tool 10 to the tool 12. In addition, the portion has a flange 16 formed by a machine neck, which is fixedly connected to the machine housing 14. The flange 16 has centrally, in the region of the spindle 82, a circular recess 80, through which the spindle 82 is guided in an assembled state of the flange 16 to the machine housing 14. The spindle 82 projects beyond the flange 16 in an axial direction 84 that is perpendicular to the longitudinal direction 70 of the power tool 10. Furthermore, the flange 16 in a radial direction 86 outwardly to a tooth profile, the tooth-like, extending in the radial direction 86 outwardly extending teeth 58 and tooth gap-like, in the radial direction 86 inwardly extending recesses 38 and tooth gaps. The teeth are also puzzle-like or undercut in the radial direction 86 inwardly (see also Figures 2a to 3b ). The tooth profile is provided as a counter tooth profile 36 for coupling to a corresponding tooth profile 34 of the protective hood 18 (cf. FIGS. 5a, 5b and 5c). Furthermore, the counter tooth profile covers an area in the circumferential direction 76 of approximately 270 ° (FIG. FIGS. 2, 2b . 3a and 3b ).

In einem Bereich 88 des Flansches 16, der in Umfangsrichtung 76 eine glatte, zahnprofillose Kontur aufweist, ist eine Orientierungsfeder 62 angeordnet. Die Orientierungsfeder 62 hat die Aufgabe, eine genau definierte Einführposition der Schutzhaube 18 bei einer Montage der Schutzhaube 18 bezüglich des Flansches 16 festzulegen. Hierzu ist die Orientierungsfeder 62 von einem gebogenen Federstahlblech gebildet. Zu einer Abstützung der Orientierungsfeder 62 an dem Flansch 16 weist die Orientierungsfeder 62 in Umfangsrichtung 76 an Endbereichen 90 jeweils zwei Abstützelemente 92 auf. Die Abstützelemente 92 sind an den Endbereichen 90 der Orientierungsfeder 62 in radialer Richtung 86 nach außen angeordnet (vgl. Figuren 3a und 4). Zur Anordnung innerhalb des Flansches 16 weist dieser eine Aussparung 94 auf, die sich in Umfangsrichtung 76 erstreckt und eine Länge aufweist, die einer Länge der Orientierungsfeder 62 entspricht (Figur 3a). Mittels der Abstützelemente 92 stützt sich die Orientierungsfeder 62 innerhalb der Aussparung 94 des Flansches 16 ab, wobei die Abstützelemente 92 durch Ausnehmungen 138 an einer Unterseite 142 und einer Oberseite 144 des Flansches 16 greifen, so dass die Orientierungsfeder 62 gegen ein Herausfallen an dem Flansch 16 gesichert ist (Figuren 2a, 2b und 3b). In einem mittleren Teilbereich 96 der Orientierungsfeder 62 ist diese U-förmig ausgebildet, wobei sich der U-förmig ausgebildete Teilbereich 96 radial nach außen erstreckt (Figuren 2b, 3a und 4). Hierdurch ragt der U-förmige Teilbereich 96 in einer montierten Position der Orientierungsfeder 62 radial nach außen über den glatten, profillosen Bereich 88 des Flansches 16 hinaus (Figuren 2b und 3a).In an area 88 of the flange 16, which has a smooth, tooth profile contour in the circumferential direction 76, an orientation spring 62 is arranged. The orientation spring 62 has the task of defining a precisely defined insertion position of the protective cover 18 when mounting the protective cover 18 with respect to the flange 16. For this purpose, the orientation spring 62 is formed by a bent spring steel sheet. To support the orientation spring 62 on the flange 16, the orientation spring 62 in the circumferential direction 76 at end regions 90 each have two support elements 92. The support elements 92 are arranged on the end regions 90 of the orientation spring 62 in the radial direction 86 to the outside (see. FIGS. 3a and 4 ). For arrangement within the flange 16, this has a recess 94 which extends in the circumferential direction 76 and has a length which corresponds to a length of the orientation spring 62 ( FIG. 3a ). By means of the support elements 92, the orientation spring 62 is supported within the recess 94 of the flange 16, wherein the support elements 92 engage through recesses 138 on a bottom 142 and a top 144 of the flange 16, so that the orientation spring 62 against falling out of the flange 16 is secured ( FIGS. 2a, 2b and 3b ). In a middle portion 96 of the orientation spring 62, this U-shaped, wherein the U-shaped portion 96 extends radially outward ( FIGS. 2b . 3a and 4 ). In this way, the U-shaped portion 96 protrudes in a mounted position of the orientation spring 62 radially outwardly beyond the smooth, non-profiled portion 88 of the flange 16 (Figures 2b and 3a).

Die Figuren 5a und 5b zeigen die Handwerkzeugmaschine 10 mit einer an dem Flansch 16 montierten Schutzhaube 18, wobei die Schutzhaube 18 an dem Flansch 16 ohne Hilfswerkzeug komfortabel lösbar und drehverstellbar angeordnet ist. Die Schutzhaube 18 umfasst einen scheibenförmigen Grundkörper 146, der in Umfangsrichtung 76 einen Teilkreis von ca. 180° des Werkzeugs 12 abdeckt und zentrisch um die Spindel 82 angeordnet ist. Die Schutzhaube 18 umfasst einen von einem Schutzhaubenkragen gebildeten Schutzhaubenstutzen 20. Um den Schutzhaubenstutzen 20 ist ein Spannband 22 angeordnet, das durch ein Spannmittel 24 zusammenziehbar ist und dabei eine Verdrehsicherung mittels einer Profilierung 26 zwischen dem Flansch 16 und der Schutzhaube 18 bewirkt. Zur Befestigung der Schutzhaube 18 an dem Flansch 16 sind in Umfangsrichtung 76 Endbereiche 98, 100 des Spannbands 22 nach außen umgebogen und bilden jeweils eine von einer Drehpunktöse gebildete Lasche 102, 104, die zu einer Anordnung des Spannmittels 24 mit dem Spannband 22 vorgesehen sind (Figur 6). Eine innengebogene Gestaltung der Laschen 102, 104, nämlich von außen nach innen gebogen, reduzieren und/oder verhindern ein Aufbiegen der Laschen 102, 104 im Belastungsfall (Figuren 5a, 5b und 6). Durch eine Fixierung (z.B. geschweißt, genietet usw.) von Enden 106 der Laschen 102, 104 mit dem Spannband 22 sind diese starr gegen eine unerwünschte Aufweitung. Grundsätzlich sind auch unfixierte Enden 106 der Laschen 102, 104 denkbar, die zusammen mit dem Spannband 22 eine Federung des Spannbands 22 ermöglichen. Des Weiteren kann die Gestaltung der Laschen 102, 104 des Spannbandes 22 als nur gebogen, als gebogen und fixiert gegen Aufweitung oder auch von außen nach innen gebogen realisiert werden.The FIGS. 5a and 5b show the power tool 10 with a mounted on the flange 16 protective cover 18, wherein the protective cover 18 is arranged on the flange 16 without auxiliary tool easily detachable and rotationally adjustable. The protective hood 18 comprises a disk-shaped main body 146 which, in the circumferential direction 76, covers a partial circle of approximately 180 ° of the tool 12 and is arranged centrically around the spindle 82. The protective hood 18 comprises a protective hood stub 20 formed by a protective hood collar. A clamping band 22 is arranged around the protective hood stub 20, which can be contracted by a tensioning means 24 and thereby prevents rotation by means of a profiling 26 between the flange 16 and the protective hood 18. For attachment of the protective cover 18 to the flange 16 end portions 98, 100 of the clamping band 22 are bent outward in the circumferential direction 76 and each form a lug 102, 104 formed by a pivot point, which are provided to an arrangement of the clamping means 24 with the clamping band 22 ( FIG. 6 ). An arcuate design of the tabs 102, 104, namely bent from outside to inside, reduce and / or prevent bending of the tabs 102, 104 in the case of load ( FIGS. 5a, 5b and 6 ). By a fixation (eg welded, riveted, etc.) of ends 106 of the tabs 102, 104 with the clamping band 22, these are rigid against unwanted expansion. In principle, unfixed ends 106 of the tabs 102, 104 are also conceivable which, together with the tensioning band 22, allow suspension of the tensioning band 22. Furthermore, the design of the tabs 102, 104 of the tension band 22 can be realized as bent, bent and fixed against expansion or bent from outside to inside.

Das Spannmittel 24 ist in einer Spannposition mehrfach formschlüssig mit dem von dem Maschinenhals gebildeten Flansch 16 verbindbar (Figuren 5a und 5b). In einer Löseposition ist das Spannmittel 24 außer Formschluss mit dem Flansch 16. Das Spannmittel 24 besteht aus Spannhebeln 28, 30, die ein Kniehebelsystem 44 bilden. Die Spannhebel 28, 30 sind von einer Schwinge 40 und einem Verschlussriegel 42 gebildet. Die Schwinge 40 ist in Umfangsrichtung 76 mit einem dem Verschlussriegel 42 abgewandten Endbereich 108 über einen Lagerbolzen 110 um eine Drehachse, die parallel bzw. koaxial zum Lagerbolzen 110 verläuft, bewegbar in der Lasche 102 des Spannbands 22 gelagert. In der Lasche 104 ist der Verschlussriegel 42 mittels eines weiteren Lagerbolzens 112 mit einem der Schwinge 40 zugewandten Endbereich 114 um eine Achse des Lagerbolzens 112 drehbar gelagert. Mittels eines Lagerelements 116 sind die Schwinge 40 bzw. ein dem Verschlussriegel 42 zugewandter Endbereich 118 der Schwinge 40 und ein Bereich 120 des Verschlussriegels 42 zueinander drehbar gelagert. Der Bereich 120 des Verschlussriegels 42 ist dabei nach dem Endbereich 114 zur Lagerung in der Lasche 104 des Spannbands 22 entlang des Verschlussriegels 42 in eine der Schwinge 40 abgewandten Richtung angeordnet. Durch die Lagerbolzen 110, 112 bzw. das Lagerelement 116 werden drei Drehpunkte des Kniehebelsystems 44 gebildet. Wird der Verschlussriegel 42 geschlossen, wird der Drehpunkt der Verbindung der Schwinge 40 mit dem Verschlussriegel 42 von dem Verschlussriegel 42 in Richtung der Schwinge 40 vor den Drehpunkt des Verschlussriegels 42 mit der Lasche 104 des Spannbandes 22 gebracht und so ein Totpunkt des Kniehebelsystems 44 überwunden und der Verschlussriegel 42 geht selbsttätig weiter in seine Spannposition. Dies geschieht schnappend und akustisch wahrnehmbar für den Bediener. Zudem ist eine zusätzliche Rasterung, z.B. zwischen Lasche 102 und Schwinge 40 als zusätzliche Sicherung jederzeit denkbar. Auftretende Aufweitungs- und/oder Dehnungskräfte bzw. Bewegungen am Spannband 22 im Betrieb der Handwerkzeugmaschine verursachen Verschlusskraftverstärkungen an der Schwinge 40 und dem Verschlussriegel 42 mit dem Bestreben das Kniehebelsystem 44 noch enger zu ziehen, wobei eine Verschlusskraft mit den Aufweitungs- und/oder Dehnungskräften zunimmt (Figuren 5a und 5b).The clamping means 24 is repeatedly positively connected in a clamping position with the flange 16 formed by the machine neck ( FIGS. 5a and 5b ). In a release position, the clamping means 24 is out of positive engagement with the flange 16. The clamping means 24 consists of clamping levers 28, 30, which form a toggle lever system 44. The clamping levers 28, 30 are formed by a rocker 40 and a locking bolt 42. In the circumferential direction 76, the rocker 40 is movably mounted in the lug 102 of the tension band 22 with an end region 108 facing away from the locking bolt 42 via a bearing pin 110 about an axis of rotation which runs parallel or coaxially to the bearing pin 110. In the tab 104 of the locking bolt 42 is rotatably supported by an additional bearing pin 112 with an end portion 114 facing the rocker 40 about an axis of the bearing pin 112. By means of a bearing element 116, the rocker 40 or an end portion 118 of the rocker 40 facing the locking bolt 42 and a region 120 of the locking bolt 42 are rotatably supported relative to one another. The region 120 of the closure bar 42 is arranged after the end region 114 for storage in the tab 104 of the tension band 22 along the closure bar 42 in a direction away from the swing arm 40. By the bearing pins 110, 112 and the bearing element 116 three pivot points of the toggle lever system 44 are formed. If the locking latch 42 is closed, the pivot point of the connection of the rocker 40 is brought with the locking bar 42 of the locking bolt 42 in the direction of the rocker 40 in front of the pivot point of the locking bar 42 with the tab 104 of the tension band 22 and so overcome a dead center of the toggle lever system 44 and the locking bolt 42 continues automatically in its clamping position. This happens snapping and acoustically perceptible for the operator. In addition, an additional screening, eg between tab 102 and rocker 40 as an additional backup at any time conceivable. Occurring expansion and / or stretching forces or movements on the tensioning band 22 during operation of the hand tool machine cause closure force reinforcements on the rocker 40 and the locking bolt 42 with the endeavor to pull the toggle lever system 44 even closer, with a locking force increasing with the expansion and / or expansion forces ( FIGS. 5a and 5b ).

Die Schwinge 40 und der Verschlussriegel 42 weisen jeweils Hintergreifmittel 32, 60 auf, die von einem Zahnprofil 34 gebildet sind, das mit dem Gegenzahnprofil 36 des Flansches 16 die Profilierung 26 bildet. Das Zahnprofil 34 ist zu einem Eingreifen in das Gegenzahnprofil 36 bzw. in die Ausnehmungen 38 des Flansches 16 zwecks einer verdrehsicheren Formschlussverbindung zwischen der Schutzhaube 18 und dem Flansch 16 vorgesehen. Die Hintergreifmittel 32, 60 bzw. das Zahnprofil 34 ist an einer dem Flansch 16 zugewandten Seite 122 des Verschlussriegels 42 bzw. der Schwinge 40 angeordnet. Die Schwinge 40 weist hierbei drei Hintergreifmittel 32 und der Verschlussriegel 42 zwei Hintergreifmittel 60 auf (Figur 7c). Das dem Verschlussriegel 42 zugewandte Hintergreifmittel 32 der Schwinge 40 greift in einer Spannposition in dieselbe Ausnehmung 38 des Gegenzahnprofils 36 wie das der Schwinge 40 zugewandte Hintergreifmittel 60 des Verschlussriegels 42. Grundsätzlich ist jedoch auch eine weitere, dem Fachmann als sinnvoll erscheinende Aufteilung der Hintergreifmittel 32, 60 denkbar. Zudem weist das Spannband 22 im Bereich des Verschlussriegels 42 eine Ausnehmung 124 auf (Figur 7b), die sich in Umfangsrichtung 76 an dem Spannband 22 erstreckt. Durch die Ausnehmung 124 greifen die Hintergreifmittel 60 des Verschlussriegels 42 und bilden mit dem Gegenzahnprofil 36 des Flansches 16 eine Formschlussverbindung während einer Spannposition (Figuren 5a und 5b). Anstatt einer Ausnehmung 124 sind auch mehrere Ausnehmungen im Spannband 22 möglich, die jeweils nur für einen Zahn 126 des Zahnprofils 34 des Verschlussriegels 42 vorgesehen sind. Zwecks einer Formschlussverbindung ist eine Breite von Zähnen 126 des Zahnprofils 34 dabei an eine Breite der Ausnehmungen 38 des Gegenzahnprofils 36 angepasst. Zudem sind die Schwinge 40 und der Verschlussriegel 42 zwecks einer Gewichtsreduzierung mit Löchern 50 versehen. Eines oder mehrere der Hintergreifmittel 32, 60 können zudem gegenüber den restlichen Hintergreifmitteln 32, 60 im Belastungsfall voreilend ausgebildet sein und somit den Flansch 16 früher berühren. Ein Winkel an Berührflächen der Hintergreifmittel 32, 60 und Ausnehmungen 38 sind bei den voreilenden Hintergreifmittel 32, 60 so gestaltet, dass diese im Falle eines berstenden Werkzeugs 12, insbesondere einer Schleif- bzw. Trennscheibe, zuziehend wirken und so ein Bediener einen maximalen Schutz im Betrieb der Handwerkzeugmaschine 10 erfährt.The rocker 40 and the locking bolt 42 each have rear engagement means 32, 60 which are formed by a tooth profile 34 which forms the profiling 26 with the counter tooth profile 36 of the flange 16. The tooth profile 34 is provided for engagement in the counter-tooth profile 36 or in the recesses 38 of the flange 16 for the purpose of a torsion-proof positive connection between the protective cover 18 and the flange 16. The rear gripping means 32, 60 or the tooth profile 34 is arranged on a flange 16 facing side 122 of the locking bar 42 and the rocker 40. The rocker 40 in this case has three rear engagement means 32 and the locking bolt 42 has two rear engagement means 60 ( FIG. 7c ). The locking bar 42 facing the rear gripping means 32 of the rocker 40 engages in a clamping position in the same recess 38 of the counter-tooth profile 36 as the rocker 40 facing behind gripping means 60 of the locking bolt 42. Basically, however, is another, the expert appears appropriate to split the rear gripping means 32, 60 conceivable. In addition, the tension band 22 has a recess 124 in the region of the closure bolt 42 (FIG. FIG. 7b ), which extends in the circumferential direction 76 on the clamping band 22. Through the recess 124 engage the rear gripping means 60 of the locking bolt 42 and form with the opposing tooth profile 36 of the flange 16 a positive connection during a clamping position ( FIGS. 5a and 5b ). Instead of a recess 124 and a plurality of recesses in the clamping band 22 are possible, which are each provided only for a tooth 126 of the tooth profile 34 of the closure bolt 42. For the purpose of a positive connection, a width of teeth 126 of the tooth profile 34 is adapted to a width of the recesses 38 of the counter-tooth profile 36. In addition, the rocker 40 and the locking latch 42 are provided with holes 50 for weight reduction. One or more of the rear gripping means 32, 60 may also be formed ahead of the rest of the rear gripping means 32, 60 in the event of loading and thus touch the flange 16 earlier. An angle at contact surfaces of the rear gripping means 32, 60 and recesses 38 are designed in the leading rear gripping means 32, 60 so that they act in the case of a bursting tool 12, in particular a grinding or cutting disc, pulling and so an operator maximum protection in Operation of the power tool 10 learns.

Mittels des Zahnprofils 34, das in einem montierten Zustand der Schutzhaube 18 in die Gegenzahnprofil 36 des Flansches 16 greift, ist die Schutzhaube 18 an dem Flansch 16 in einer festen Position arretierbar. Zudem kann eine Montageposition in Umfangsrichtung 76 durch einen Bediener festgelegt werden und ein maximaler Schutz für den Bediener erzielt werden. Indem sich das Gegenzahnprofil 36 des Flansches 16 in Umfangsrichtung 76 auf einen Bereich von ca. 270° beschränkt, bildet das Gegenzahnprofil 36 ein Kodierungsmittel, so dass eine unzulässige Position der Schutzhaube 18 an dem Flansch 16 verhindert werden kann und ein Schließen des Kniehebelsystems 44 in dem Bereich 88 ohne Gegenzahnprofil 36 verhindert ist.By means of the tooth profile 34, which engages in the mounted counter-tooth profile 36 of the flange 16 in an assembled state of the protective cover 18, the protective cover 18 can be locked to the flange 16 in a fixed position. In addition, a mounting position in the circumferential direction 76 can be set by an operator and maximum protection for the operator can be achieved. By the opposing tooth profile 36 of the flange 16 is limited in the circumferential direction 76 to a range of about 270 °, the opposing tooth profile 36 forms a coding means, so that an impermissible Position of the protective cover 18 can be prevented on the flange 16 and a closing of the toggle lever system 44 in the region 88 is prevented without counter-toothed profile 36.

Bei einem Bersten des Werkzeugs 12 wird durch umherfliegende Werkzeugteile ein Schutzhaubenrand 148 zusammen mit der Schutzhaube 18 belastet. Dabei treten Zerrkräfte und Drehkräfte an der Schutzhaube 18 auf, wobei ein unerwünschtes Verdrehen der Schutzhaube 18 jedoch mittels der Formschlussverbindung des Spannmittels 24 mit dem Flansch 16 verhindert ist. Überdies wirken die Zerrkräfte an der Schutzhaube 18 und dem Spannband 22 radial nach außen, wodurch der Verschlussriegel 42 und die Schwinge 40 bzw. das Zahnprofil 34 umso fester in die Ausnehmungen 38 bzw. das Gegenzahnprofil 36 des Flansches 16 greifen und so ein dynamisch immer fester arretierender Verschluss mit hochwirksamer Verdrehsicherung geschaffen wird.When the tool 12 bursts, a guard edge 148 is loaded together with the protective hood 18 by flying tool parts. In this case, tearing forces and rotational forces occur on the protective hood 18, wherein undesired rotation of the protective hood 18 is prevented by means of the form-locking connection of the clamping device 24 with the flange 16. Moreover, the tearing forces on the protective hood 18 and the tensioning band 22 act radially outward, as a result of which the locking bolt 42 and the rocker 40 or the toothed profile 34 engage in the recesses 38 or the counter tooth profile 36 of the flange 16 all the more firmly and thus dynamically Locking closure is created with highly effective anti-rotation.

Des Weiteren ist eine Verschlusskraft bzw. eine Spannkraft des Spannbands 22 zusammen mit dem Spannmittel 24 für einen Bediener einstellbar. Zudem kann hierdurch auch eine Spannbandlänge eingestellt werden, wie beispielsweise zum Ausgleich von Fertigungstoleranzen. Hierzu weist das Spannband 22 eine Halbschlaufe 46 auf, die in Umfangsrichtung 76 durch eine radial nach außen und anschließend radial nach innen gebogene Kontur des Spannbands 22 realisiert ist (Figuren 6, 7a und 7b). Die Halbschlaufe 46 weist eine Ausnehmung 128 auf, durch die ein Verstellelement in Form einer Schraube 48 greift und mit einer Mutter 130 verschraubt ist. Je fester die Mutter 130 mit der Schraube 48 verschraubt ist, desto enger wird dabei ein Spannbanddurchmesser bzw. desto größer wird dabei die Spannkraft. Weitere geometrische von der Halbschlaufe 46 abweichende Formen des Spannbands 22 sind jederzeit möglich, wie beispielsweise eine zweiteilige Ausbildung des Spannbands 22 mit zwei Spannbandelementen, wobei die beiden Spannbandelemente mittels des Verstellelements miteinander verbindbar sind und damit eine Spannkraft bzw. ein Spannbanddurchmesser einstellbar ist. Zudem kann durch eine Anzahl der Verstellelemente und/oder eine Ausführung der Verstellelemente und/oder eine Lage der Verstellelemente eine Justierbarkeit beeinflusst werden. Das Spannband 22 ist undehnbar am Schutzhaubenstutzen 20 über einen Bereich von 180° angeordnet. Es kann aber auch über nur einen Teilbereich von z.B. 90° befestigt werden, was den restlichen Teilbereich des Spannbandes 22 frei und dehnbar belässt. Ferner kann das Spannband 22 auch an nur einem einzigen Punkt fixiert sein.Furthermore, a closing force or a clamping force of the clamping band 22 can be adjusted together with the clamping means 24 for an operator. In addition, this also a clamping band length can be adjusted, such as to compensate for manufacturing tolerances. For this purpose, the tension band 22 has a half loop 46 which is realized in the circumferential direction 76 by a contour of the tension band 22 bent radially outward and then radially inwardly ( Figures 6, 7a and 7b ). The half-loop 46 has a recess 128, through which an adjusting element in the form of a screw 48 engages and is screwed to a nut 130. The tighter the nut 130 is bolted to the screw 48, the tighter a strap diameter or larger becomes the clamping force. Other geometric shapes of the tension band 22 deviating from the half loop 46 are possible at any time, such as a two-part design of the tension band 22 with two tension band elements, wherein the two tension band elements can be connected to one another by means of the adjustment element and thus a tension force or a tension band diameter can be adjusted. In addition, adjustability can be influenced by a number of adjusting elements and / or an embodiment of the adjusting elements and / or a position of the adjusting elements. The tension band 22 is inextricably disposed on the guard neck 20 over a range of 180 °. But it can also be attached over only a portion of eg 90 °, leaving the remaining portion of the tension band 22 free and stretchable. Furthermore, the tension band 22 can also be fixed at only one point.

In den Figuren 7a, 7b und 7c ist die Schutzhaube 18 mit dem Spannband 22 und dem Spannmittel 24 in einer Spannposition (Figuren 7a und 7c) und in einer Löseposition (Figur 7b) dargestellt. Der Schutzhaubenstutzen 20 der Schutzhaube 18, der an einer radial nach außen gerichteten Oberfläche 132 von dem Spannband 22 umgeben ist, weist sich senkrecht zur Umfangsrichtung 76 erstreckende, wellenprofilartige bzw. hohlzahnradartige Ausprägungen 52 auf. Dementsprechend weist auch ein an dem Schutzhaubenstutzen 20 anliegender Bereich 56 des Spannbands 22 wellenprofilartige bzw. hohlzahnradartige Ausprägungen 54 auf (Figur 6). Grundsätzlich ist aber auch eine einfachere geometrische Form des Spannbands 22 denkbar, wie insbesondere eine Kontur ohne zusätzlich eingeprägtes Profil. Die hohlzahnradartigen Ausprägungen 52 des Schutzhaubenstutzens 20 haben die Hauptfunktion einer Verdrehrasterung mit der Orientierungsfeder 62 bei einer beabsichtigten Schutzhaubenverstellung (Figur 8). Bei Drehung der Schutzhaube 18 rastet die Orientierungsfeder 62 von einer in die nächste Ausprägung 52 ein. Zudem korrespondieren die Ausprägungen 52 mit dem Gegenzahnprofil 36 des Flansches 16 und stellen eine, insbesondere kodierte, Positionierhilfe dar. Der im Flansch 16 montierten Orientierungsfeder 62 ist eine V-förmige Einprägung 64 an definierter Stelle im Spannband 22 zugeordnet (Figur 6). Ein Einführen der Schutzhaube 18 bei einer Montage mit dem Flansch 16 ist nur möglich, wenn die Orientierungsfeder 62 in die Einprägung 64 des Spannbands 22 greift. Um bei einem anschließenden Verdrehen der Schutzhaube 18 am Flansch 16 einen gleitenden Übergang der Orientierungsfeder 62 vom Spannband 22 auf den Schutzhaubenstutzen 20 zu gewähren, ist an einer radial nach innen gerichteten Seite 134 des Spannbands 22 eine stetig ansteigende Blecheinprägung 136 vorhanden, die dafür sorgt, dass die Orientierungsfeder 62 radial sanft nach innen überrastend ausweichen kann.In the FIGS. 7a . 7b and 7c is the guard 18 with the clamping band 22 and the clamping means 24 in a clamping position ( FIGS. 7a and 7c ) and in a release position ( FIG. 7b ). The guard hood 20 of the protective hood 18, which is surrounded on a radially outwardly directed surface 132 of the clamping band 22, has perpendicular to the circumferential direction 76 extending, wave-like or hollow-tooth-like forms 52. Correspondingly, a region 56 of the clamping band 22 abutting against the protective hood stub 20 also has wave profile-like or hollow-tooth-like characteristics 54 (FIG. FIG. 6 ). In principle, however, a simpler geometric shape of the clamping band 22 is conceivable, in particular a contour without additionally embossed profile. The hollow gear-like shapes 52 of the protective hood stub 20 have the main function of a Verdresterasterung the orientation spring 62 at an intended protective hood adjustment ( FIG. 8 ). Upon rotation of the protective cover 18, the orientation spring 62 engages from one to the next expression 52. In addition, the forms 52 correspond to the opposing tooth profile 36 of the flange 16 and constitute a, in particular coded, positioning aid. The orientation spring 62 mounted in the flange 16 is assigned a V-shaped impression 64 at a defined location in the tension band 22 (FIG. FIG. 6 ). An insertion of the protective hood 18 when mounted with the flange 16 is only possible if the orientation spring 62 engages in the impression 64 of the clamping band 22. In order to ensure a sliding transition of the orientation spring 62 from the tensioning band 22 to the protective guard neck 20 during a subsequent rotation of the protective hood 18 on the flange 16, a continuously rising sheet metal indentation 136 is present on a radially inwardly directed side 134 of the tension band 22, which ensures that the orientation spring 62 can dodge radially gently inwardly latching.

In den Figuren 9a und 14 sind alternative Ausführungsbeispiele dargestellt. Im Wesentlichen gleich bleibende Bauteile, Merkmale und Funktionen sind grundsätzlich mit den gleichen Bezugszeichen beziffert. Die nachfolgende Beschreibung beschränkt sich im Wesentlichen auf die Unterschiede zu dem Ausführungsbeispiel in den Figuren 1 bis 8, wobei bezüglich gleich bleibender Bauteile, Merkmale und Funktionen auf die Beschreibung des Ausführungsbeispiels in den Figuren 1 bis 8 verwiesen werden kann.In the FIGS. 9a and 14 Alternative embodiments are shown. Substantially identical components, features and functions are basically numbered by the same reference numerals. The following description is essentially limited to the differences from the embodiment in the FIGS. 1 to 8 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIGS. 1 to 8 can be referenced.

In den Figuren 9a und 9b ist eine alternative Ausgestaltung einer Orientierungsfeder 150 dargestellt. Ein mittlerer, U-förmiger Teilbereich 152 der Orientierungsfeder 150 weist an Krümmungen 154 jeweils eine in Umfangsrichtung 76 (Figur 10a) sich erstreckende Sicke 156 in Form von Einkerbungen auf, die eine Verstärkung des Teilbereichs 152 bewirken. Zudem ist in Umfangsrichtung 76 links und rechts von dem Teilbereich 152 jeweils ein weiterer, U-förmig ausgebildeter Bereich 158 angeordnet zur Unterstützung einer Federung bei einer Montage einer Schutzhaube 18 an einen Flansch 160 einer Handwerkzeugmaschine 10. In Umfangsrichtung 76 sind an Enden 162 der Orientierungsfeder 150 vergrößerte Befestigungsbereiche 164 zu einer Befestigung mit dem Flansch 160 angeordnet. Hierzu sind in den Befestigungsbereichen 164 ebenfalls von Einkerbungen gebildete Sicken 166 eingeprägt, die sich senkrecht zur Umfangsrichtung 76 erstrecken. Die Befestigungsbereiche 164 erstrecken sich dabei senkrecht zur Umfangsrichtung 76 und senkrecht zu einer radialen Richtung 86 (Figuren 10a und 10b). Zu einer Befestigung mit dem Flansch 160 wird die Orientierungsfeder 150 in einen Aufnahmebereich 168 des Flansches 160 eingeführt und der Flansch 160 in Bereichen der Befestigungsbereiche 164 der Orientierungsfeder 150 plastisch verformt und an die Orientierungsfeder 150 angepresst. Mittels der angeformten Sicken 166 in den Befestigungsbereichen 164 ist die Orientierungsfeder 150 fest mit ihren Enden 162 mit dem Flansch 160 verbunden. Der Aufnahmebereich 168 erstreckt sich in Umfangsrichtung 76 an dem Flansch 160 (Figuren 10a und 10b). Zusätzliche Halteelemente 170 des Flansches 160, die in Umfangsrichtung 76 links und rechts neben dem mittleren, U-förmigen Teilbereich 152 der Orientierungsfeder 150 angeordnet sind, halten die Orientierungsfeder 150 in einer vorteilhaften Ausgangsposition, die eine Montage der Schutzhaube 18 an dem Flansch 160 ermöglicht und dabei eine Beschädigung der Orientierungsfeder 150 verhindert. Zudem Begrenzen die Halteelemente 170 zusammen mit einer radial nach innen gewandten Wandung 174 des Flansches 160 einen Federweg 176 der Orientierungsfeder 150 in eine radiale Richtung 86 während einer Montage der Schutzhaube 18.In the FIGS. 9a and 9b an alternative embodiment of an orientation spring 150 is shown. A middle, U-shaped Partial region 152 of the orientation spring 150 has, in each case, a curvature 154 in the circumferential direction 76 (FIG. FIG. 10a ) extending bead 156 in the form of notches, which cause a reinforcement of the portion 152. In addition, in the circumferential direction 76 left and right of the portion 152 each have a further, U-shaped region 158 arranged to support suspension during assembly of a protective cover 18 to a flange 160 of a power tool 10. In the circumferential direction 76 are at ends 162 of the orientation spring 150 enlarged mounting portions 164 arranged for attachment to the flange 160. For this purpose, beads 166, which are formed by indentations and which extend perpendicular to the circumferential direction 76, are embossed in the attachment regions 164. The attachment regions 164 extend perpendicular to the circumferential direction 76 and perpendicular to a radial direction 86 (FIG. Figures 10a and 10b ). For attachment to the flange 160, the orientation spring 150 is inserted into a receiving portion 168 of the flange 160, and the flange 160 is plastically deformed in portions of the attachment portions 164 of the orientation spring 150 and pressed against the orientation spring 150. By means of the molded beads 166 in the mounting portions 164, the orientation spring 150 is fixedly connected at its ends 162 to the flange 160. The receiving region 168 extends in the circumferential direction 76 on the flange 160 (FIG. Figures 10a and 10b ). Additional retaining elements 170 of the flange 160, which are arranged in the circumferential direction 76 to the left and right of the central, U-shaped portion 152 of the orientation spring 150, hold the orientation spring 150 in an advantageous starting position, which allows mounting of the protective cover 18 on the flange 160 and one Damage to the orientation spring 150 prevented. In addition, the holding elements 170 together with a radially inwardly facing wall 174 of the flange 160 limit a spring travel 176 of the orientation spring 150 in a radial direction 86 during assembly of the protective hood 18.

In den Figuren 11a und 12b ist ein zu dem Kniehebelsystem 44 der Figuren 2 bis 8 alternatives Spannsystem 200 dargestellt. Das Spannsystem 200 weist ein Spannband 202, eine von einem Spannteil 204 gebildete Schwinge 206 und ein von einer Schraube 208 gebildetes Spannmittel 210 auf. Hierzu ist ein Ende 212 des Spannbands 202 radial nach außen gebogen und mit einer Ausnehmung 214 zur Aufnahme der Schraube 208 versehen. Die Schwinge 206 umfasst einen Aufnahmebereich 216 mit einem von einem Gewinde gebildeten Gegengewinde zu der Schraube 208, so dass mittels der Schraube 208, der Schwinge 206 und dem Spannband 202 eine Schutzhaube 18 in einer Spannposition an einem Flansch 16 befestigt werden kann. Das Gewinde ist in gegenläufig und fluchtend gewölbten, von Teilstücken gebildeten Ausprägungen 220 der Schwinge 206 eingebracht, wobei die Teilstücke des Aufnahmebereichs 216 entlang einer Längserstreckung 222 des Aufnahmebereichs 216 abwechselnd, halbbogenartig an gegenüberliegenden Seiten 224, 226 der Schraube 208 anliegen (Figur 12b). Das Gegengewinde ist dabei mittig in eine eine Blechdicke bestimmende Seite 228 der Schwinge 206 eingebracht. Um eine unerwünschtes Entweichen der Schraube 208 aus der Ausnehmung 214 in einer montierten Position der Schutzhaube 18 zu verhindern, weist das Ende 212 eine Schraubensicherung 230 auf, indem Endbereiche 232 des Endes 212 in Richtung 234 eines Schraubenkopfs 236 der Schraube 208 gebogen sind, so dass dieser in radialer Richtung 86 innerhalb der Ausnehmung 214 fixiert ist. Ist die Schutzhaube 18 an dem Flansch 16 montiert, reicht es für eine Demontage aus, die Schraube 208 soweit zu lösen, bis die Schraube 208 zusammen mit der Schwinge 206 aus dem Spannband 202 bzw. aus der Ausnehmung 214 mit der Schraubensicherung 230 geklappt werden kann. Ein Drehpunkt bzw. Lagerpunkt der Schwinge 206 ist an einem der Schraube 208 abgewandten Ende 238 der Schwinge 206 bzw. an dem der Schwinge 206 zugewandten Ende 240 des Spannbands 202 angeordnet. Zudem ist hierzu die Ausnehmung 214 des Endes 212 des Spannbands 202 in radialer Richtung 86 nach außen offen gestaltet, so dass die Schraube 208 zusammen mit der Schwinge 206 nach außen geklappt werden kann und von Zähnen 244 gebildete Hintergreifmittel 242 der Schwinge 206 eine von Ausnehmungen 38 gebildete Gegenzahnprofil 36 des Flansches 16 freigeben. Ein Verschließen des Spannsystems 200 findet in einer umgekehrten Reihenfolge statt.In the FIGS. 11a and 12b is a to the toggle system 44 of the FIGS. 2 to 8 alternative tensioning system 200 shown. The tensioning system 200 has a tensioning strap 202, a rocker 206 formed by a tensioning part 204, and a tensioning means 210 formed by a screw 208. For this purpose, an end 212 of the clamping band 202 is bent radially outward and provided with a recess 214 for receiving the screw 208. The rocker 206 includes a receiving portion 216 with a thread formed by mating thread to the screw 208 so that by means of the screw 208, the rocker 206 and the strap 202, a protective cover 18 can be secured in a clamping position on a flange 16. The thread is introduced into oppositely and flushly curved, formed by portions forms 220 of the rocker 206, wherein the portions of the receiving portion 216 along a longitudinal extension 222 of the receiving portion 216 alternately, half-bow-like manner on opposite sides 224, 226 of the screw 208 ( FIG. 12b ). The mating thread is centrally introduced into a sheet thickness determining side 228 of the rocker 206. In order to prevent undesired escape of the screw 208 from the recess 214 in a mounted position of the protective cover 18, the end 212 has a screw lock 230 by bending end regions 232 of the end 212 in the direction 234 of a screw head 236 of the screw 208, so that this in the radial direction 86 inside the recess 214 is fixed. If the protective cover 18 is mounted on the flange 16, it is sufficient for disassembly to loosen the screw 208 until the screw 208 together with the rocker 206 can be folded out of the clamping band 202 or out of the recess 214 with the screw lock 230 , A pivot point or bearing point of the rocker 206 is disposed on an end 238 of the rocker 206 facing away from the screw 208 or on the end 240 of the tension band 202 facing the rocker 206. In addition, for this purpose, the recess 214 of the end 212 of the clamping band 202 in the radial direction 86 outwardly open, so that the screw 208 can be folded together with the rocker 206 to the outside and formed by teeth 244 rear gripping means 242 of the rocker 206 one of recesses 38th released counter tooth profile 36 of the flange 16 release. Closure of the tensioning system 200 takes place in a reverse order.

Figur 13 ist eine zu den Figuren 11a bis 12b alternative Ausgestaltung der Schwinge 260 dargestellt. Die Schwinge 260 weist eine von einem Endlappen 262 gebildeten Endbereich auf, der sich senkrecht zu einer Haupterstreckungsfläche 264 der Schwinge 260 an dieser erstreckt. Dieser Endbereich weist eine Ausnehmung 266 mit einem Gewinde für ein von einer Schraube 208 gebildetes Spannmittel 210 auf, so dass mittels der Schwinge 260, der Schraube 208 und einem Spannband 202 eine Schutzhaube 18 an einen Flansch 16 einer Handwerkzeugmaschine 10 gespannt werden kann. Alternativ kann anstatt der Ausnehmung 266 zur Aufnahme der Schraube 208 auch eine Mutter in den Endbereich angeordnet sein. FIG. 13 is one to the FIGS. 11a to 12b alternative embodiment of the rocker 260 shown. The rocker 260 has an end portion formed by an end tab 262 which extends perpendicular to a main extension surface 264 of the rocker 260 thereon. This end region has a recess 266 with a thread for a clamping means 210 formed by a screw 208, so that by means of the rocker 260, the screw 208 and a clamping band 202, a protective cover 18 can be clamped to a flange 16 of a hand tool 10. Alternatively, instead of the recess 266 for receiving the screw 208, a nut may also be arranged in the end region.

In Figur 14 ist eine alternative von einem Spannteil 280 gebildete Schwinge 282 zu den Figuren 11a bis 13 dargestellt. Die Schwinge 280 umfasst zwei Halbschwingen 284, 286, die jeweils eine halbe Dicke 288 der Schwinge 282 aufweisen. Zudem weist die Schwinge 282 einen Aufnahmebereich 290 mit einem Gewinde 292 für ein von einer Schraube 208 gebildetes Spannmittel 210 auf, wobei die Halbschwingen 284, 286 im Aufnahmebereich 290 halbbogenförmig zur Aufnahme der Schraube 208 ausgebildet sind. Das Gewinde 292 ist dabei mittig in eine eine Blechdicke bestimmende Seite 294 der Schwinge 282 eingebracht. Ferner ist jederzeit möglich, die Halbschwingen 284, 286 durch einfache Prägung eine gewünschte Steigungsform und/oder Lagerung entsprechend der Schraube 208 bzw. dem Spannmittel 210 auszubilden.In FIG. 14 is an alternative of a clamping member 280 formed rocker 282 to the FIGS. 11a to 13 shown. The rocker 280 includes two half rockers 284, 286, each having a half thickness 288 of the rocker 282. In addition, the rocker 282 has a receiving area 290 with a thread 292 for a clamping device 210 formed by a screw 208, wherein the half-rockers 284, 286 are formed in the receiving area 290 semi-arcuate for receiving the screw 208. The thread 292 is centered in a sheet thickness determining side 294 of the rocker 282 introduced. Further, it is possible at any time, the half-wings 284, 286 by simple embossing a desired pitch shape and / or storage according to the screw 208 and the clamping means 210 form.

Claims (21)

  1. Portable power tool for a rotating, preferably disc-shaped tool (12), comprising a machine housing (14) which has a flange (16, 160) or a machine neck and comprising a protective hood (18) which can be detachably clamped on the flange or machine neck for covering the tool (12) and which has a protective hood connection piece (20) or protective hood collar which carries a clamping band (22) in an annular manner, which clamping band (22) can be tightened by a clamping means (24), and wherein an anti-rotation locking means acting between flange or machine neck and protective hood (18) is arranged between protective hood (18) and flange or machine neck in the form of a profiling (26), characterized in that the clamping means (24) can be connected to the flange or machine neck in a multiple form-fitting manner in its clamping position and is disengaged from the form-fit connection in its release position.
  2. Portable power tool according to Claim 1, characterized in that the clamping means (24) has a clamping lever (28, 30) having a back-engagement means (32) or a tooth profile (34) for engaging in a mating tooth profile (36) or in recesses (38) of the flange (16, 160) or of the machine neck.
  3. Portable power tool at least according to Claim 2, characterized in that the clamping levers (28, 30) are formed by a rocker (40) and a locking latch (42).
  4. Portable power tool at least according to Claim 2, characterized in that the clamping levers (28, 30) form a toggle lever system (44).
  5. Portable power tool according to one of the preceding claims, characterized in that the clamping band (22) has a bent, projecting semi-loop (46) which can be tightened by an adjusting element for readjusting the clamping force, said adjusting element passing through said semi-loop (46).
  6. Portable power tool at least according to Claims 4 and 5, characterized in that the bent, projecting semi-loop (46) can be tightened by means of the adjusting element for readjusting the clamping force of the toggle lever system (44).
  7. Portable power tool according to one of the preceding claims, characterized in that the clamping band (22) has at least two clamping band elements which are intended for readjusting the clamping force of the toggle lever system (44) by means of the adjusting element.
  8. Portable power tool at least according to Claim 3, characterized in that the rocker (40) and the locking latch (42) are provided with a plurality of holes (50) in order to save weight and provide a better grip.
  9. Portable power tool according to one of the preceding claims, characterized in that wave-profile-like or ring-gear-like embossments (52) are arranged in the protective hood connection piece (20) or protective hood collar.
  10. Portable power tool at least according to Claim 1 or 5, characterized in that the clamping band (22, 202) has wave-profile-like or ring-gear-like embossments (54).
  11. Portable power tool at least according to Claim 10, characterized in that the clamping band (22, 202) comprises a region (56) which bears on the outside against the protective hood collar and which has the wave-profile-like or ring-gear like embossments (54).
  12. Portable power tool at least according to Claim 2, characterized in that the back-engagement means (32, 60) or the tooth profile (34) are/is provided with puzzle-like or undercut teeth (58) or tooth gaps for engaging in a mating tooth profile (36) or in recesses (38) of the flange (16, 160) or of the machine neck, and said undercut teeth (58) or tooth gaps, when rotary forces act on the protective hood (18), develop an effect which tightens or retightens the clamping band (22).
  13. Portable power tool according to one of the preceding claims, characterized in that an orientation spring (62, 150) is arranged on the flange (16, 160) or the machine neck, an impression (64) on the clamping band (22) being assigned to said orientation spring (62, 150) for fitting in position when the protective hood (18) is placed axially on the machine neck.
  14. Portable power tool at least according to Claims 9 and 13, characterized in that the orientation spring (62, 150) interacts in an over-latching manner with the wave-profile-like or ring-gear-like embossments (52) of the protective hood collar when the protective hood (18) is rotated.
  15. Portable power tool according to one of the preceding claims, characterized in that a screw (208) serves as clamping means (210) and engages in a clamping part (204) which is provided with teeth (244) fitting into radial recesses (38) of the flange (16) or machine neck and which, with its end (238) remote from the screw (208), is coupled to the clamping band (202).
  16. Portable power tool at least according to Claim 15, characterized in that the clamping part (204), with its end (238) remote from the screw (208), is coupled to an end (240) of the clamping band.
  17. Portable power tool at least according to Claims 15 and 16, characterized in that the screw (208) is coupled to the other end (212) of the clamping band (202).
  18. Portable power tool at least according to Claim 15, characterized in that the clamping part (204) has a thread serving to accommodate the screw (208).
  19. Portable power tool at least according to Claim 18, characterized in that the thread passes through an end tab (262) bent at right angles on the clamping part (204).
  20. Portable power tool at least according to Claim 18, characterized in that the thread is made in embossments of the clamping part (204) which are arched in opposite directions and in an aligned manner.
  21. Portable power tool at least according to Claim 18, characterized in that the thread is made centrally in that side (228, 294) of the clamping part (204) which determines the sheet thickness.
EP07820407A 2006-11-13 2007-09-20 Portable power tool, especially angle grinder, comprising a protective hood Active EP2106325B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006053304 2006-11-13
DE102007041840A DE102007041840A1 (en) 2006-11-13 2007-09-03 Hand tool with protective hood, in particular angle grinder
PCT/EP2007/059969 WO2008058793A1 (en) 2006-11-13 2007-09-20 Portable power tool, especially angle grinder, comprising a protective hood

Publications (2)

Publication Number Publication Date
EP2106325A1 EP2106325A1 (en) 2009-10-07
EP2106325B1 true EP2106325B1 (en) 2010-05-12

Family

ID=38722629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07820407A Active EP2106325B1 (en) 2006-11-13 2007-09-20 Portable power tool, especially angle grinder, comprising a protective hood

Country Status (7)

Country Link
US (1) US7909680B2 (en)
EP (1) EP2106325B1 (en)
CN (1) CN101535000B (en)
AT (1) ATE467484T1 (en)
DE (2) DE102007041840A1 (en)
RU (1) RU2456148C2 (en)
WO (1) WO2008058793A1 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053305A1 (en) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Hand tool with protective hood, in particular angle grinder
DE102007052683A1 (en) * 2007-11-05 2009-05-07 Robert Bosch Gmbh Hand tool
DE102008002451A1 (en) * 2008-06-16 2009-12-17 Robert Bosch Gmbh Machine tool, in particular hand tool
DE102008002468A1 (en) * 2008-06-17 2009-12-24 Robert Bosch Gmbh Machine tool, in particular hand tool
DE102008040369B4 (en) * 2008-07-11 2021-09-23 Robert Bosch Gmbh Guard anti-rotation device
DE102009017299A1 (en) 2009-04-11 2010-10-21 Metabowerke Gmbh Protective cover for electric hand tools and electric hand tool
DE102009024427A1 (en) 2009-06-09 2010-12-16 Metabowerke Gmbh Protective casing for accommodating drive shaft of angle grinder, has adjusting ring rotatable in peripheral direction opposite to collar, so that ring is adjusted between engaging position and non-engaging position
JP5297392B2 (en) * 2009-07-06 2013-09-25 株式会社マキタ Thunder
DE102009048357A1 (en) 2009-10-06 2011-04-21 Metabowerke Gmbh Electric hand tool
CN201711848U (en) * 2010-02-09 2011-01-19 南京德朔实业有限公司 Motive power tool
DE102010038509A1 (en) * 2010-07-28 2012-02-02 Robert Bosch Gmbh Hand tool
US9120202B2 (en) * 2011-06-30 2015-09-01 Black & Decker Inc. Shield assembly for a power tool
DE102011089758A1 (en) * 2011-12-23 2013-06-27 Robert Bosch Gmbh Guard anti
DE102012210771A1 (en) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Guard device
DE102012210767A1 (en) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Guard device
DE102012210759A1 (en) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Guard device
DE102012210762A1 (en) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Guard device
CN104640673B (en) * 2012-09-18 2018-02-13 英古所连公司 Milling tool with protector
US20160193713A1 (en) * 2013-08-27 2016-07-07 Hitachi Koki Co., Ltd. Grinder
US9475172B2 (en) 2014-07-15 2016-10-25 Milwaukee Electric Tool Corporation Adjustable guard for power tool
USD744800S1 (en) 2014-07-16 2015-12-08 Milwaukee Electric Tool Corporation Power tool blade guard
US10201889B2 (en) * 2014-08-06 2019-02-12 Sparky Guard, LLC Fully rotatable grinder guard assembly and method for making same
CN106346336A (en) * 2015-07-14 2017-01-25 天津金盛德钢管制造有限公司 Novel multi-functional steel tube polishing machine
JP6571463B2 (en) 2015-09-10 2019-09-04 株式会社マキタ Grinder and cover
JP6634248B2 (en) 2015-09-10 2020-01-22 株式会社マキタ Grinders and covers
JP6667236B2 (en) 2015-09-10 2020-03-18 株式会社マキタ Grinders, covers and cover sets
JP6632840B2 (en) * 2015-09-10 2020-01-22 株式会社マキタ Grinder
EP3251791B1 (en) 2016-05-06 2019-03-27 Black & Decker Inc. Reversible lever for a guard assembly for a power tool
DE102017213669A1 (en) 2016-08-22 2018-02-22 Robert Bosch Gmbh Tool device for a hand tool
DE102017213746A1 (en) * 2017-08-08 2019-02-14 Robert Bosch Gmbh Protective device for a hand tool machine
DE102017214118A1 (en) * 2017-08-11 2019-02-14 Robert Bosch Gmbh Quick-clamping device for a, in particular at least one rotatably driven output shaft having, portable machine tool, in particular angle grinder
JP7001491B2 (en) * 2018-02-23 2022-01-19 株式会社マキタ Electric tool
DE102018203179A1 (en) * 2018-03-02 2019-09-05 Robert Bosch Gmbh Device, in particular handheld power tool management device, and method for monitoring and / or managing a plurality of objects
CN109277913A (en) * 2018-11-22 2019-01-29 湖北理工学院 A kind of hand-held beveling machine
DE102019220621A1 (en) * 2019-12-30 2021-07-01 Robert Bosch Gmbh Hand machine tool device, hand machine tool with the hand machine tool device and accessories with the hand machine tool device

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060940A (en) * 1976-01-13 1977-12-06 The Black And Decker Manufacturing Company Adjustable guard construction for cut-off machine
DE3338917A1 (en) * 1983-10-27 1985-05-09 C. & E. Fein Gmbh & Co, 7000 Stuttgart PROTECTIVE HOOD FASTENING FOR PORTABLE ANGLE GRINDERS
DE3636601A1 (en) * 1986-10-28 1988-05-05 Bosch Gmbh Robert PROTECTIVE COVER FOR GRINDING MACHINES, ESPECIALLY ANGLE GRINDERS, AND THE FASTENING MOUNTING THAT MATCH THEM
US4791541A (en) * 1987-08-28 1988-12-13 Mc Gill Manufacturing Company, Inc. Protective cage for a lamp
DE3744219A1 (en) * 1987-12-24 1989-07-06 Fein C & E HAND GRINDING MACHINE WITH ADJUSTABLE PROTECTIVE COVER
DE3913898A1 (en) * 1989-04-27 1990-10-31 Licentia Gmbh Adjustable guard for portable power tools - has indent mechanism for angular adjustment and finger pressure actuated fastening to spindle nose
RU2027581C1 (en) * 1991-07-11 1995-01-27 Совместное советско-западногерманское станкостроительное предприятие "Станковендт" Grinding wheel housing
US5440815A (en) * 1992-04-13 1995-08-15 Inkster; Kevin R. Guide for rotary cutter tools
SE9201990L (en) * 1992-06-29 1993-12-30 Atlas Copco Tools Ab Pneumatic rotary grinder
SE507264C2 (en) * 1996-06-13 1998-05-04 Atlas Copco Tools Ab Handheld power tool
RU2152862C2 (en) * 1998-08-10 2000-07-20 Закрытое Акционерное Общество "Энерпред" Hand-grinding machine
DE10000701A1 (en) * 2000-01-10 2001-07-12 Bosch Gmbh Robert Angle grinder protection hood
US6464573B1 (en) * 2000-06-30 2002-10-15 Porter-Cable Corporation Guard attachment system with knurled clamp ring
DE10124439A1 (en) * 2001-05-18 2002-11-21 Bosch Gmbh Robert Protective hood of an electric angle grinder has an expanding clamp band held around a shaped housing collar about which it may be turned and clamped
US6893334B1 (en) * 2002-01-24 2005-05-17 J. David Stivers Rotating guard for angle grinder
US6699114B1 (en) * 2002-04-26 2004-03-02 Benedict Engineering Company, Inc. Pivotal guards for power hand tools with rotating discs
DE10259520A1 (en) * 2002-12-19 2004-07-01 Robert Bosch Gmbh Electric hand tool
DE10316182A1 (en) * 2003-04-09 2004-10-28 Robert Bosch Gmbh Hand grinder with protective hood
DE10336873B4 (en) * 2003-08-11 2007-09-20 Hilti Ag Guard assembly
DE10343060A1 (en) * 2003-09-16 2005-04-07 Robert Bosch Gmbh Protective cowl for hand power tool especially for angle grinder has an adjustable fitting with a finger pressure ratchet lever engaging ratchet holes in cowl mounting

Also Published As

Publication number Publication date
EP2106325A1 (en) 2009-10-07
US7909680B2 (en) 2011-03-22
DE102007041840A1 (en) 2008-05-15
DE502007003805D1 (en) 2010-06-24
ATE467484T1 (en) 2010-05-15
RU2456148C2 (en) 2012-07-20
US20090029635A1 (en) 2009-01-29
WO2008058793A1 (en) 2008-05-22
CN101535000B (en) 2012-05-16
RU2009122231A (en) 2010-12-20
CN101535000A (en) 2009-09-16

Similar Documents

Publication Publication Date Title
EP2106325B1 (en) Portable power tool, especially angle grinder, comprising a protective hood
EP2097220B1 (en) Portable power tool for a rotating tool comprising a protective hood
EP2106324B1 (en) Portable power tool for a rotating tool comprising a protective hood
EP1965949B1 (en) Protective hood with clamping device
EP2416925B1 (en) Guard for a portable machine tool, machine tool
EP2106326B1 (en) Protective hood securing device
EP2291264B1 (en) Power tool, particularly a hand-held power tool
EP2435211B1 (en) Electric handheld tool having an adjustable cover
DE202009001440U1 (en) Powered hand tool with clamping device for a tool
WO2001049465A1 (en) Chain saw and chain tensing device therefor
EP2608930B1 (en) Hand-held machine tool comprising a clamping collar
EP2252430B1 (en) Hand-held power tool, in particular hand-guided grinding machine
EP3500402A1 (en) Quick tensioning device for a portable machine tool, in particular for an angle grinding machine
EP3416780B1 (en) Angle grinder dust hood
DE102007035704A1 (en) guard
WO2018036920A1 (en) Quick tensioning device for a portable machine tool, in particular for an angle grinding machine
EP3736093B1 (en) Fixing device for fixing a chainsaw blade
WO2021013628A1 (en) Machine tool

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090615

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007003805

Country of ref document: DE

Date of ref document: 20100624

Kind code of ref document: P

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100512

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100823

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100912

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100616

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100913

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

26N No opposition filed

Effective date: 20110215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100813

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007003805

Country of ref document: DE

Effective date: 20110214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101113

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100812

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 467484

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120920

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: RO

Payment date: 20160913

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170920

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20200923

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210920

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220921

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502007003805

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230509

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231124

Year of fee payment: 17