EP2106323B1 - Portable power tool system - Google Patents
Portable power tool system Download PDFInfo
- Publication number
- EP2106323B1 EP2106323B1 EP07822425.0A EP07822425A EP2106323B1 EP 2106323 B1 EP2106323 B1 EP 2106323B1 EP 07822425 A EP07822425 A EP 07822425A EP 2106323 B1 EP2106323 B1 EP 2106323B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- protective hood
- rotation
- power tool
- portable power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001681 protective effect Effects 0.000 claims description 204
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 34
- 230000009172 bursting Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety 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
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5009—For portable articles
- Y10T70/5022—Tools
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5611—For control and machine elements
Definitions
- the invention is based on a hand-held power tool system according to the preamble of claim 1.
- 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.
- an area of the grinding wheel pointing away from the user towards the workpiece engagement projects radially beyond the flange.
- the publication US 2,819,570 A discloses a power tool system having a power tool designed as an angle grinder and a protective hood unit.
- the protective hood unit comprises a protective hood, a positioning device and a fastening device.
- the positioning device By means of the positioning device, an operator can adjust a position of the protective hood relative to the angle grinder, so that the protective hood can be pivoted about a spindle axis depending on the application.
- the fastening device is provided to attach the protective cover to a housing of the angle grinder.
- the guard is fastened by means of a frictional engagement between a clamping band of the fastening device and the housing on the housing.
- the invention relates to a hand-held power tool system with a hand tool, in particular an angle grinder, a guard unit and a guard rotation preventing unit, which is provided for a rotation between the guard unit and the power tool during a damage case of a tool and a Guard rotation preventing unit is provided for a rotation between the guard unit and the power tool with an attachment of the guard unit to the power tool in a working position of the guard unit.
- a hand tool in particular an angle grinder, a guard unit and a guard rotation preventing unit, which is provided for a rotation between the guard unit and the power tool during a damage case of a tool and a Guard rotation preventing unit is provided for a rotation between the guard unit and the power tool with an attachment of the guard unit to the power tool in a working position of the guard unit.
- "intended” should be understood to mean in particular specially equipped and / or specially designed.
- a "working position of the protective hood unit” should be understood to mean, in particular, a position of the protective hood unit in which the protective hood unit is rotationally fixed to the handheld power tool in a regular working operation of the handheld power tool and a protective hood of the guard unit provides advantageous protection for an operator from contact with a guard Tool, in particular a disc-shaped, rotatably driven tool, and / or grants in front of the operator thrown out processing residues.
- a case of damage of a tool should be understood to mean, in particular, a tool bursting during operation of the portable power tool, wherein individual tool parts are thereby thrown outwards due to rotation of the tool.
- a dimensioning of the guard rotation preventing unit is designed in a Verwar winessposition the guard unit with the power tool for receiving forces occurring in the event of damage of the tool, which are transmitted from hitting the guard unit tool parts of the ruptured tool on the guard unit.
- a position of the protective hood unit during the event of damage of the tool by means of the guard rotation-preventing unit and a functionality of the protective hood unit is preferably maintained.
- a protective position or an anti-rotation position of the protective hood unit is formed by the working position of the protective hood unit, so that the anti-rotation position can be achieved structurally simple for an operator of the power tool system.
- the protective hood rotation-locking unit is particularly advantageously arranged at least partially on a protective hood and / or on a closure unit of the protective hood unit.
- a "closure unit” should be understood to mean, in particular, a unit which is preferably provided for attachment of the protective hood unit to the handheld power tool and has at least one closure element, such as a tightening strap, a screw, a locking lever, etc., wherein an attachment of the Guard unit on the hand tool by means of the locking unit can be done positively and / or non-positively.
- the term "arranged” is to be understood in particular to mean that the guard rotation-preventing unit and the protective hood and / or the closure unit have a common assembly unit and can be mounted in an operating position on the handheld power tool during a common assembly operation.
- the guard anti-rotation lock unit has a force-locking unit and / or a positive locking unit, which is provided for a non-positive and / or a positive rotation between the guard unit and the power tool.
- the guard rotation-preventing unit has at least one anti-rotation element arranged on the guard unit and an anti-rotation element arranged on the hand tool unit, which are arranged at least partially in an anti-rotation position in the working position of the guard unit, whereby an effective anti-rotation device can advantageously be realized in a working position of the guard unit and thus a high safety standard for an operator can be achieved.
- the anti-rotation element is at least partially formed by a detent element which is intended to block a movement of the protective hood unit in at least one direction
- twisting of the protective hood unit in particular in the case of a bursting tool, advantageously prevents and at least partially reverses the position of the protective hood unit facilitate an operator of the power tool system.
- a locking direction of the locking element corresponds to a direction of rotation of a tool, so that an advantageous rotation in case of damage of the tool can be achieved.
- the anti-rotation locking element is formed at least partially in one piece with a closure unit and / or a protective hood of the protective hood unit.
- the term "integral" is intended to be understood in particular to be in one piece, produced from a casting and / or designed as a component.
- closure unit has at least one closure element on which the anti-rotation lock element is arranged, an anti-rotation lock of the guard unit can be achieved for an operator that is secure during installation.
- a particularly simple assembly and disassembly of the protective hood unit on the hand tool machine can advantageously be achieved if the anti-rotation element is movably mounted on a locking unit and / or on a protective hood of the protective hood unit.
- the anti-rotation element for releasing the anti-rotation position in an unlocking position is arranged manually movable by an operator. This can be achieved in a particularly advantageous manner when the anti-rotation element is mounted at least partially rotatably about a pivot axis on the closure unit and / or on the protective hood.
- the guard rotation-preventing unit has at least one lever element, on which the anti-rotation element is at least partially disposed, whereby advantageously the anti-rotation element can be moved by means of the lever member in a Verwarêtsposition or in an inactive position.
- the lever member rotatably mounted on the power tool and / or on the guard unit.
- the Invention vessel is proposed that the Schutzschaufprintracairessaku has at least one spring element as a moving element, which moves the anti-rotation element when reaching the working position of the protective hood unit in a Verwar remediessposition, whereby an independent of an operator, at least partially automatic fixing mechanism or movement mechanism to achieve the anti-rotation position of the anti-rotation element reaches and a high safety standard for the operator can be achieved independently of a manual operation by the operator of the guard rotation unit.
- the movement element is formed by further movement elements that appear appropriate to the person skilled in the art, such as, for example, a movement element formed by a magnet.
- the guard rotation-preventing unit has at least one unlocking element which is provided for moving the anti-rotation element from the anti-rotation position.
- the unlocking element is at least partially movably mounted on the guard unit, in particular spring-loaded biased in the anti-rotation, so that in addition to a compact arrangement of the unlocking an advantageous securing of the anti-rotation in the anti-rotation position can be achieved.
- the handheld power tool has a receiving unit for receiving a tool on which the anti-rotation element is arranged, whereby a particular space-saving, compact Schutzschaufreadracriosö can be achieved by the anti-rotation element of the power tool is arranged on a component, preferably in direct contact with the protective hood unit is arranged in a working position of the protective hood unit.
- the anti-rotation element arranged on the receiving unit is movably arranged on the receiving unit, whereby a particularly simple assembly and disassembly of the protective hood unit on the handheld power tool can advantageously be achieved.
- the anti-rotation element arranged on the receiving unit is formed at least partially in one piece with the receiving unit.
- guard rotation unit on at least two anti-rotation elements, which are arranged in a circumferential direction successively on the guard unit, and / or at least two anti-rotation elements, which are arranged in a circumferential direction successively on the hand tool, in particular on the receiving unit, a multi-positive and / or non-positive connection between the protective hood unit and the power tool can be achieved and / or it can be the guard unit in different positions along the circumferential direction of the power tool against rotation, in particular a bursting tool mounted.
- It should under one "Circumferential direction" in particular a circumferential direction of the protective hood unit are understood, which is aligned in an assembled state of the protective hood unit substantially parallel to a rotational direction of the tool.
- the invention comprises a hand tool for a rotating, preferably disc-shaped tool, with a machine housing having a flange or a machine neck on which a protective hood, in particular made of sheet metal, for covering the tool is releasably clamped, wherein the protective cover a Protective hood body has, which consists of a circular disk-shaped piece, in particular with angled outer edge and has a central circular recess, at the edge of a guard neck or collar is formed, which carries a ring-like tension band, which is contractible by means of a clamping means and one between machine neck and guard acting anti-rotation between guard and machine neck is arranged in the form of a profiling, the guard on the clamping band and / or on the clamping means in its clamping position multiple positive and / or non-positive with the machine nhals can be coupled and thus battinglegbar and to achieve a release position except positive engagement and / or adhesion to the machine neck can be brought, the guard is then rotation
- a handheld power tool system 10a is shown with a hand tool machine 12a formed by an angle grinder, a guard unit 14a and a guard rotation lock unit 16a.
- the handheld power tool 12a For receiving the protective hood unit 14a or a tool 18a formed by a cutting disk, the handheld power tool 12a has a receiving unit 60a, which is screwed to a handheld power tool housing 66a of the handheld power tool 12a.
- a drive shaft 70a protrudes from the receiving unit 60a on a side 68a facing away from the handheld power tool housing 66a, which drive shaft can be connected at its free end 72a to the disk-shaped tool 18a and can be driven to rotate about an axis 74a.
- the protective hood unit 14a comprises a protective hood 22a and a locking unit 20a on which the guard anti-rotation lock unit 16a is arranged.
- the protective hood 22a covers an angular range of the tool 18a of approximately 180 ° and for this purpose has a half-disc-shaped protective hood body 76a and a protective hood edge 78a, which is initially aligned perpendicular to the half-disc-shaped guard body 76a and then parallel to the half-disc-shaped guard body 76a in a radial direction 80a inwardly is.
- the guard rotation preventing unit 16a is provided for preventing rotation between the guard unit 14a and the hand tool 12a and the receiving unit 60a during a case of damage of the tool 18a, such as a bursting tool 18a, wherein the rotation between the guard unit 14a and the power tool 12a at the same time an attachment of the protective hood unit 14a to the hand tool 12a in a working position of the protective hood unit 14a takes place.
- the protective hood 22a also has a protective collar collar 82a, which is aligned substantially perpendicular to the half-disk-shaped protective hood body 76a ( FIGS. 1 . 2a and 2b ).
- the protective hood collar 82a is outwardly surrounded in the radial direction 80a by a tension band 84a of the locking unit 20a, wherein the protective collar collar 82a and the tension band 84a are connected to one another by means of a welded connection. Together with the clamping band 84a, the protective hood collar 82a is provided for fastening the protective hood unit 14a to the handheld power tool 12a or to the receiving unit 60a, which has a cylindrical receiving flange 86a for this purpose.
- the tension band 84a has, in a region facing away from the protective hood 22a, two end regions 88a, 90a which extend outward in the radial direction 80a.
- the two end regions 88a, 90a each have a recess 92a, through which a closure element 46a of the closure unit 20a formed by a clamping screw is guided.
- the clamping screw can be fastened by means of a nut 94a in the recesses 92a of the clamping band 84a.
- the protective hood 22a is fastened by means of the locking unit 20a to the receiving unit 60a or to the receiving flange 86a due to a frictional engagement between the protective collar 82a and the clamping band 84a and the receiving flange 86a in a working position, so that the protective hood unit 14a in a regular operation of the power tool 10a is arranged rotationally fixed.
- further closure elements 46a such as, for example, a tensioning lever and / or positive locking elements, etc., instead of the tensioning screw.
- the protective hood rotation-preventing unit 16a secures the protective hood unit 14a in the event of a damage of the tool 18a, in particular in the case of a bursting tool 18a, against undesired twisting.
- the guard rotation-preventing unit 16a has a form-locking unit 26a, which is provided for a positive connection between the guard unit 14a and the receiving flange 86a of the power tool 12a, wherein a form-locking connection coincides with an attachment of the guard unit 14a in a working position on the receiving flange 86a.
- the form-fitting unit 26a or the guard-rotation-preventing unit 16a has three anti-rotation elements 28a, 30a, 32a formed by a form-locking element, which are arranged on the clamping band 84a of the closure unit 20a, and a plurality of anti-rotation elements 34a, 36a formed by a respective form-locking element formed integrally with the receiving unit 60a.
- the anti-rotation elements 34a, 36a arranged on the receiving unit 60a are formed by latching recesses and in the circumferential direction 62a, 64a
- the retaining flange 60a is arranged successively around the receiving flange 60a, the anti-rotation elements 34a, 36a being open in a direction 96a extending parallel to the axis 74a by the receiving unit 60a in the direction of the tool 18a and on a base element 98a of the receiving unit 60a substantially perpendicular to the axis 74a is aligned, are arranged.
- the arrangement of the anti-rotation elements 34a, 36a allows attaching or securing the protective hood unit 14a at different working positions in the circumferential direction 62a, 64a on the hand tool 12a.
- the three anti-rotation elements 28a, 30a, 32a of the protective hood unit 14a are arranged one after the other in the circumferential direction 62a, 64a and formed by latching elements 38a, 40a, 42a, which block a movement of the protective hood unit 14a in an assembled state in one direction ( FIG. 2a ).
- a blocking direction corresponds to a direction of rotation of the tool 18a, so that with a bursting tool 18a, the protective hood unit 14a remains fixed in its protective position.
- the latching elements 38a, 40a, 42a are formed in a section and have a substantially triangular cross-sectional area, so that upon loosening a fastening or the clamping screw, a rotation of the protective hood 22a in one direction is possible, which is opposite to the direction of rotation of the tool 18a during operation the hand tool 12a is aligned ( FIG. 2a ).
- the anti-rotation elements 28a, 30a, 32a provided with a substantially rectangular cross-sectional area, which causes a rotation of the guard 22a along the circumferential direction 62a, 64a in both directions.
- the anti-rotation elements 28a, 30a, 32a are movably mounted on the tension band 84a.
- the guard rotation-preventing unit 16a has a lever element 52a, which is arranged pivotably about a pivot axis 50a on the clamping band 84a.
- the pivot axis 50a of the lever member 52a is aligned in a mounted state of the guard unit 14a on the power tool 12a substantially perpendicular to the axis 74a and extends from the axis 74a in a radial direction 80a.
- the anti-rotation elements 28a, 30a, 32a are arranged on an end 100a of the lever element 52a facing away from the pivot axis 50a and extend along a pivot direction 102a about the pivot axis 50a on the lever element 52a, the anti-rotation elements 28a, 30a, 32a being in a working position of the protective hood unit 14a are arranged on a side facing the anti-rotation elements 34a, 36a side of the lever member 52a.
- the guard rotation preventing unit 16a has a moving member 54a formed by a spring member 56a, which moves the lever member 52a and the anti-rotation elements 28a, 30a, 32a into an anti-rotation position upon reaching a working position of the hood unit 14a during assembly with the power tool 12a.
- the anti-rotation elements 28a, 30a, 32a are always in the anti-rotation position as soon as the protective hood unit 14a is mounted in the working position.
- the spring element 56a is supported on a support element 104a of the tension band 84a, wherein the support element 104a is arranged along the axis 74a on a region 106a remote from the anti-rotation elements 28a, 30a, 32a, and a spring force the lever element 52a along the axis 74a into a tool 18a opposite direction 108a presses.
- the lever element 52a has an unlocking element 58a formed by a tab, which is arranged on the end 100a of the lever element 52a facing away from the pivot axis 50a and projects outward along the radial direction 80a
- Lever member 52a extends, so that an operator can move the lever member 52a together with the anti-rotation elements 28a, 30a, 32a from the anti-rotation position along the pivot direction 102a by means of the tab.
- the closure unit 20a can only be closed when the anti-rotation elements 28a, 30a, 32a are in an anti-rotation position.
- the locking unit 20a For a disassembly or a change in position of the protective hood unit 14a in the circumferential direction 62a, 64a, the locking unit 20a must be released and in the case of rotation in both directions and the guard rotation preventing unit 16a are brought from its anti-rotation position, so that the anti-rotation elements 28a, 30a, 32a disengaged with the recesses of the receiving unit 60a and a rotation or a disassembly of the protective hood unit 14a with respect to the power tool 12a is possible.
- the hand-held power tool system 10a has a coding device 110a which is provided to prevent assembly of tools 18a or of tools 18a together with the protective hood unit 14a on unsuitable hand-held power tools 12a.
- the tension band 84a has a coding element 112a of the coding device 110a, which is formed integrally with the tension band 84a.
- the coding device 112a is formed by a shape extending inward in the radial direction 80a and has a rectangular shape.
- the receiving flange 86a has a coding element 114a of the coding device 110a, which is formed by a recess into which the coding means 112a of the clamping band 84a during assembly of the protective hood unit 14a with the hand tool 12a is inserted.
- the protective hood unit 14a can be rotated into a working position.
- the receiving flange 86a has a circumferential groove 62a in the circumferential direction 62a, 64a, in which, upon rotation of the protective hood unit 14a into the working position, the coding element 112a is guided.
- FIGS. 3 to 15 Alternative embodiments are shown. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, however, the reference numerals of the embodiments, the letters a to n are added. The following description is essentially limited to the differences from the embodiment in the FIGS. 1 and 2 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIGS. 1 and 2 can be referenced.
- a handheld power tool system 10b is shown in a partial section with a receiving unit 60b of a handheld power tool 12b, a tightening strap 84b of a protective hood unit 14b and a guard rotation preventing unit 16b.
- the guard rotation preventing unit 16b is provided for preventing rotation between the guard unit 14b and the power tool 12b at the same time as reaching a working position of the guard unit 14b during assembly.
- the guard rotation-preventing unit 16b has an anti-rotation element 28b arranged on the tension band 84b of a closure unit 20b and a plurality of anti-rotation elements 34b, 36b arranged on the receiving unit 60b.
- the antirotation elements 34b, 36b arranged on the receiving unit 60b are formed by recesses which are arranged in succession on a receiving flange 86b of the receiving unit 60b in a circumferential direction 62b, 64b.
- the recesses extend radially inwardly from a radially outwardly directed surface 118b of the receiving flange 86b.
- the anti-rotation element 28b arranged on the closure unit 20b is arranged on a lever element 52b of the protective cover anti-rotation lock unit 16b.
- the lever element 52b is pivotably mounted on the tension band 84b, wherein a pivot axis 50b of the lever element 52b is aligned substantially perpendicular to a circumferential direction 62b, 64b of the tension band 84b.
- the lever element 52b is supported on the tensioning band 84b by means of a movement element 54b formed by a spring element 56b, wherein the spring element 56b is formed by a tension spring which is in the radial direction 80b is disposed between the clamping band 84b and a radially inward direction 80b inwardly facing surface of the lever member 52b.
- the lever element 52b is moved together with the anti-rotation element 28b by the spring element 56b about the pivot axis 50b inwardly and pulled and in a Vermosellessposition, namely in engagement with the anti-rotation elements 34b, 36b of the receiving flange brought.
- the clamping band 84b has a recess 122b, through which the anti-rotation locking element 28b engages with the receiving flange 86b in an anti-rotation position.
- the lever element 52b has an unlocking element 58b formed by a tab, by means of which the lever element 52b can be moved by an operator from its anti-rotation position against a spring force of the spring element 56b.
- a release of a clamping closure element 46b, which is formed by a clamping screw, is only possible for an operator if he previously moved the lever member 52b from its anti-rotation position.
- FIG. 4a is a hand tool machine system 10c with a guard anti-rotation lock unit 16c in a partial section with a to FIG. 3 alternatively designed anti-rotation element 28c of a protective hood unit 14c shown.
- the guard anti-rotation lock unit 16c is provided to prevent rotation between the guard unit 14c and a hand tool not shown in detail at the same time reaching a working position of the guard unit 14c during assembly.
- the anti-rotation element 28c is formed by a hook-shaped detent element 38c.
- the latching element 38c is integrally formed with a clamping band 84c of a closure unit 20c, the latching element 38c being arranged bent inwards by the tensioning band 84c.
- the locking element 38c causes an anti-rotation analogous to the description FIG. 2a and allows in a direction which runs counter to a rotational direction of a tool, a rotation in a released closure element formed by a clamping screw 46c of the closure unit 20c.
- the hand-held power tool system 10c has a positioning device 124c.
- the protective hood unit 14c has a positioning element 126c of the positioning device 124c, which is formed integrally with the clamping band 84c ( FIGS. 4a and 4b ).
- the positioning element 126c is arranged on an edge region 128c of the tension band 84c, the edge region 128c facing away from the tool in an assembled state of the protective hood unit 14c.
- the positioning element 126c are web-shaped in a circumferential direction 62c, 64c, wherein the positioning element 126c is punched out of the tension band 84c along two sides 130c, 132c facing the tension band 84c and is arranged on the tension band 84c at an end area 134c in the circumferential direction 62c, 64c ( FIG. 4b ).
- the positioning element 126c has an expression which extends inward in the radial direction 80c and has a contour which is substantially identical in shape to a contour of a positioning element, not shown, of a receiving flange.
- FIG. 5 a hand-held power tool system 10d is shown with a guard rotation preventing unit 16d in a partial section, which is provided for an anti-rotation between a guard unit 14d and a handheld power tool 12d not shown in detail simultaneously with reaching a working position of the guard unit 14d during assembly.
- the guard rotation preventing unit 16d differs from the embodiment in FIGS FIGS. 4a and 4b in that an anti-rotation element 28d of the anti-rotation guard unit 16d is arranged in an end region 90d of a clamping band 84d of a closure unit 20d arranged in the circumferential direction 62d, 64d.
- the anti-rotation element 28d is integrally formed with the tension band 84d and bent inwardly from the tension band 84d.
- the guard rotation-preventing unit 16d has a plurality of anti-rotation elements 34d, 36d formed by a respective detent recess on a receiving unit 60d of the hand-held power tool 12d.
- An operation of the guard rotation anti-rotation unit 16d is analogous to the description in the FIGS. 2a . 4a and 4b .
- the closure unit 20d has a closure element 46d, 48d along the circumferential direction 62d, 64d at end regions 88d, 90d of the tension band 84d.
- the closure elements 46d, 48d are formed by a screw and a closure lever, wherein the screw connects one of the end regions 88d of the tension band 84d with the tensioning lever arranged on the further end region 90d.
- the screw is rotatably mounted on the end portion 88d and arranged in the circumferential direction 64d of the end portion 88d in the direction of the locking lever for a bearing point or a rotation axis 138d of the locking lever with the end portion 90d.
- a protective hood is fastened by means of the closure unit 20d to the receiving unit 60d or to a receiving flange 86d of the receiving unit 60d by means of a frictional engagement between a protective collar collar or the clamping band 84d and the receiving flange 86d in a working position.
- an effective fastening force can be set for an operator when mounted between the protective hood unit 14d and the receiving flange 86f.
- FIG. 6 a hand-held power tool system 10e with a guard rotation-preventing unit 16e is shown in a partial section.
- the guard rotation preventing unit 16d is provided for preventing rotation between a guard unit 14d and a hand tool 12e not shown in detail at the same time as reaching a working position of the guard unit 14e during assembly, and for this purpose has an anti-rotation member 28e formed by a detent cam integrally with a shutter member 46e a closure unit 20e is formed.
- the closure unit 20e is analogous to the description to FIG. 5 formed, wherein the anti-rotation element 28 e is arranged on a clamping lever and extends from this in a closed state of the closure unit 20 e in a radial direction 80 e inwardly.
- the anti-rotation element 28e engages in one of a plurality of anti-rotation elements 34e, 36e which are analogous to the description FIG. 3 are arranged on a receiving flange 86e of a receiving unit 60e.
- a clamping band 84e has a recess 122e, through which the anti-rotation element 28e engages to reach the position for securing against rotation.
- a hand-held power tool system 10f is shown with a protective cover anti-rotation lock unit 16f in a partial section.
- the guard rotation preventing unit 16f is provided for preventing rotation between a guard unit 14f and a hand tool 12f not shown in detail at the same time as reaching a working position of the guard unit 14f during assembly, and has an anti-rotation member 28f integrally formed with a shutter member 46f of a shutter unit 20f is.
- the closure element 46f is formed by a tensioning lever, which is rotatably mounted on an end region 88f of a tension band 84f formed by an eyelet.
- the cocking lever has a recess 140f through which another end portion 90f of the tightening strap 84f engages, the end portion 90f having a continuous rising outward contour as viewed from the tightening strap 84f such that when the locking unit 20f is closed, a tightening strap diameter is reduced and retracted effective frictional connection between the protective hood unit 14f and a receiving unit 60f can be generated.
- An embodiment of the tension band 84f and the receiving unit 60f for achieving an anti-rotation position is analogous to the description FIG. 6 educated.
- the power tool system 10f in the FIGS. 7a and 7b a positioning device 124f, which is analogous to the description of the FIGS. 4a and 4b is trained.
- FIG. 7c is one to the FIGS. 7a and 7b alternative embodiment of a positioning 124f shown.
- a positioning member 126f extends on the tension band 84f perpendicular to a circumferential direction 62f, 64f of the tension band 84f and, in a mounted state of the guard unit 14f, faces away from a tool.
- positioning members 142f of the positioning device 124f formed on the receiving unit 60f of notches are arranged in a circumferential direction 62f, 64f successively on a base member 98f of the receiving unit 60f about a receiving flange 86f.
- FIGS. 8a and 8b a hand-held power tool system 10g with a guard anti-rotation lock unit 16g is shown in a partial section.
- the guard rotation preventing unit 16g is provided for preventing rotation between a guard unit 14g and a hand tool 12g not shown in detail at the same time as reaching a working position of the guard unit 14g during assembly, and has an anti-rotation member 28g movably supported on a shutter member 46g of a shutter unit 20g is.
- the anti-rotation element 28g has a recess 144g, through which the closure element 46g engages.
- the closure element 46g is analogous to FIG. 1 formed by a clamping screw.
- a movement into an anti-rotation position takes place when a protective hood unit 14g is fastened in a working position, in that the anti-rotation element 28g is brought into the anti-rotation position by means of a frictional connection with the clamping screw ( FIG. 8b ).
- a positive connection between the clamping screw and the anti-rotation element 28g is conceivable.
- a receiving flange 86g has a plurality of anti-rotation elements 34g formed by a respective recess, of which in FIG FIG. 8a only one is visible. The recesses are successively arranged on a receiving flange 86g along a circumferential direction 62g, 64g in a radially outward edge region 146g.
- a hand-held power tool system 10h is shown with a guard rotation preventing unit 16h, a receiving unit 60h and a protective hood unit 14h.
- the guard rotation preventing unit 16h is provided for preventing rotation between the guard unit 14h and a hand tool 12h at the same time as reaching a working position of the guard unit 14h during assembly, and has an anti-rotation member 34h movably disposed on the receiving unit 60h.
- the anti-rotation element 34h is arranged on a base element 98h of the receiving unit 60h and extends outward in a radial direction 80h from a receiving flange 86h.
- the anti-rotation element 34h is held by a spring element not shown in an anti-rotation position.
- the anti-rotation member 34h is integrally formed with a lever member 52h, with which a release of the anti-rotation element 34h from the anti-rotation position can be manually achieved by an operator.
- a clamping band 84h of a closure unit 20h has a plurality of anti-rotation elements 28h, 30h formed by a respective recess, which are arranged successively on the clamping band 84h in a circumferential direction 62h, 64h.
- the recesses are arranged on an edge region 128h of the clamping band 84h facing the basic element 98h.
- a hand-held power tool system 10i is shown with a guard rotation-preventing unit 16i, a partially illustrated receiving unit 60i and a protective hood unit 14i.
- the guard rotation preventing unit 16i is provided for preventing rotation between the guard unit 14i and a hand tool at the same time as reaching a working position of the guard unit 14i during assembly, and has three anti-rotation elements 28i, 30i, 32i integrally formed with a guard 22i of the guard unit 14i ,
- the three anti-rotation elements 28i, 30i, 32i of the protective hood unit 14i are formed as a toothing and are arranged one after the other in the circumferential direction 62i, 64i.
- the toothings are arranged on an edge region 148i of a protective hood body 76i of the protective hood 22i facing the protective collar collar 82i and extend inward from the protective hood 22i or within a plane of the protective hood body 76i in the radial direction 80i so that they are substantially perpendicular to a circumferential direction 62i , 64i of the protective hood collar 82i are aligned.
- the teeth are integrally formed on the protective hood 22i by means of a stamping bending process.
- a receiving flange 86i of the handheld power tool has a plurality of anti-rotation elements 34i, 36i, each formed by a positive locking element, which are formed integrally with the receiving flange 86i.
- the anti-rotation elements 34i, 36i arranged on the receiving flange 86i form a circumferentially extending toothing, wherein the anti-rotation elements 34i, 36i are arranged on one side 68i of the receiving flange 86i in a radially outer edge region 152i in the radial direction 80i, the side 68i being in an operation of FIG Hand tool is facing a tool.
- the anti-rotation locking elements 28i, 30i, 32i, 34i, 36i engage in each other or are in an anti-rotation position and the guard 22i is secured against undesirable twisting in the event of a bursting tool during operation.
- the anti-rotation elements 28i, 30i, 32i of the protective cover 22i engage in the anti-rotation elements 34i, 36i during an insertion operation of the protective hood unit 14i on the receiving unit 60i of the protective hood unit 14i in a direction 108i of a hand tool housing.
- a hand-held power tool system 10j is shown with a guard rotation preventing unit 16j, a receiving unit 60j and a guard unit 14j.
- the guard rotation-preventing unit 16j has a form-fitting unit 26j which is provided to prevent rotation of a protective hood 22j on a hand-held power tool at the same time as attachment of the guard unit 14j to the hand-held power tool.
- the anti-rotation elements 28j can also be arranged on the clamping band 84j instead of on the protective collar collar 82j in an alternative embodiment of the invention.
- the anti-rotation elements 28j are integrally formed with the protective collar collar 82j and arranged in a circumferential direction successively on the protective collar collar 82j.
- the receiving unit 60j also has a plurality of anti-rotation elements 34j, which are formed integrally with the receiving unit 60j.
- the anti-rotation elements 34j are formed by recesses and are arranged successively in the circumferential direction about a receiving flange 86j on a base member 98j of the receiving unit 60j.
- the receiving unit 60j has an edge element 154j in the area of the anti-rotation elements 34j.
- the edge member 154j is oriented substantially parallel to a surface 81j of the receiving flange 86j facing in the radial direction 80j and formed integrally with the receiving unit 60j.
- the edge element 154j is arranged spaced from the surface 118j on the receiving unit 60j, wherein the anti-rotation elements 34j are arranged between the edge element 154j and the surface 118j.
- the edge element 154j used for the anti-rotation elements 34j has a support element 158j which extends inward in a radial direction 80j.
- the support element 158j supports a movement element 54j formed by a spring element 56j, which is arranged on the protective hood unit 14j.
- the protective hood unit 14j for this purpose also has an edge element 160j which extends outward in the radial direction 80j from the protective collar collar 82j and is arranged on an edge region of the protective collar collar 82j facing the anti-rotation elements 34j.
- the spring element 56j is arranged on the edge element 160j.
- the guard unit 14j For disassembly of the guard unit 14j, it must be raised so that the anti-rotation elements 28j, 34j are disengaged, and subsequently rotated so that the two rim elements 154j, 160j are circumferentially spaced, and the guard unit 14j can be detached by an operator ,
- a hand-held power tool system 10k having a guard rotation preventing unit 16k, a receiving unit 60k and a guard unit 14k.
- the protective cover anti-rotation lock unit 16k has a force-locking unit 24k, which is provided to prevent rotation of a protective hood 22k on a hand-held power tool at the same time as fastening the protective hood unit 14k to the hand-held power tool.
- a receiving unit 60k and a protective hood collar 82k each have an anti-rotation element 28k, 34k, which are each formed by a coated surface with an increased coefficient of friction.
- the surfaces of the protective collar collar 82k and the receiving flange 86k have a desired coefficient of friction due to a choice of material and / or a surface treatment.
- the protective hood unit 14k is fastened in a force-locking manner to the receiving unit 60k by means of a locking unit 20k.
- the coated surfaces are arranged adjacent to one another in a mounted state of the protective hood unit 14k, so that, in the case of a bursting tool, an anti-rotation lock arises due to frictional engagement between the two coated surfaces or between the protective hood unit 14k and the handheld power tool.
- a hand-held power tool system 101 with a guard rotation-preventing unit 161, a receiving unit 601 and a protective hood unit 141 is shown in a partial section.
- the guard anti-rotation lock unit 161 has a positive locking unit 261, which takes place to prevent rotation of a guard 221 on a hand tool at the same time as attaching the guard unit 141 to the power tool.
- the receiving unit 601 a plurality of, in the circumferential direction 621, 641 successively arranged anti-rotation elements 341, 361 of the guard anti-rotation lock unit 161, which form a toothing and extending at a radially outer edge region 801 outer side 1461 on a side 681 thereof, wherein the side 681 in one assembled state of the power tool system 101 facing a tool.
- Another anti-rotation element 281, which is formed by a toothing corresponding to the anti-rotation elements 341, 361 of the receiving unit 601, is arranged on the protective hood unit 141.
- the anti-rotation element 281 is integrally formed with an unlocking element 581, which is mounted in the radial direction 801 movable on the protective cover 221.
- the unlocking element 581 is integrally formed on an outer contour of the protective hood 221, the unlocking element 581 being arranged in the radial direction 801 at a distance from a protective hood edge 781 of the protective hood 221, so that a movement of the unlocking element 581 into an anti-rotation position or out of the anti-rotation position is possible ,
- a protective hood collar 821 has a recess 1621, through which the unlocking element 581 engages together with the anti-rotation element 281.
- the guard anti-rotation lock unit 161 has a movement element 541 formed by a spring element 561, which moves the unlocking element 581 in the radial direction Direction 801 inwardly supported on a guard collar 821.
- An anti-rotation position of the anti-rotation element 281 with the anti-rotation elements 341, 361 of the receiving unit 601 is achieved when the unlocking element 581 is in an outer end position in the radial direction 801.
- the unlocking element 581 is pressed inwards by an operator against a spring force of the spring element 561 and the anti-rotation element 281 of the protective hood unit 141 is pushed out of engagement with the anti-rotation elements 341, 361 of the receiving unit 601. A change in position of the protective hood unit 141 on the hand tool is thus possible.
- FIG. 14 a hand-held power tool system 10m with a protective hood anti-rotation unit 16m, a receiving unit 60m and a protective hood unit 14m is shown in a partial section.
- the protective cover anti-rotation lock unit 16m has a form-locking unit 26m which is provided to prevent rotation of a protective hood 22m on a hand-held power tool at the same time as securing the protective hood unit 14m to the hand-held power tool.
- a receiving unit 60m several, in the circumferential direction 62m, 64m successively arranged anti-rotation elements 34m, 36m of the guard anti-rotation lock unit 16m, which are each formed by a recess and arranged on a radially outer 80m outer edge region 146m.
- the guard anti-rotation lock unit 16m further anti-rotation elements 28m, 30m, 32m, which are integrally formed with an unlocking element 58m, wherein the unlocking element 58m is arranged on a side facing away from a tool 164m of a guard body 76m of a protective hood 22m.
- the unlocking element 58m is arranged tangentially to the receiving unit 60m on the protective hood 22m in a working position of the protective hood unit 14m, wherein the anti-rotation elements 28m, 30m, 32m extend inward in the radial direction 80m on a side 166m of the unlocking element 58m facing the receiving unit 60m.
- the unlocking element 58m has two recesses 168m formed by oblong holes, by means of which the unlocking element 58m is mounted so as to be movable inwardly or outwardly on the protective cover 22m.
- 168m screws 170m are mounted in the recesses, which are screwed to the protective cover 22m.
- the guard rotation preventing unit 16m has a moving element 54m formed by a spring element 56m, which is supported on the protective cover 22m.
- the unlocking element 58m protrudes beyond the guard body 76m with both end portions 172m so that the unlocking member 58m can be easily moved by an operator from its anti-rotation position. Actuation by the operator may be at both end portions 172m.
- an embodiment of the anti-rotation elements 28m, 30m, 32m of the protective hood unit 14m and the recesses of the receiving unit 60m allows easy insertion of the protective hood unit 14m on the hand tool by the protective hood 22m with the help of the. 1 by the anti-rotation elements 28m, 30m, 32m of the guard unit 14m
- Spring element 56m is centered in the working position.
- FIG. 15 is one too FIG. 14 alternative hand tool system 10n.
- the hand-held power tool system 10n differs from FIG. 14 in that an unlocking element 58n of a protective cover anti-rotation lock unit 16n is formed integrally with an anti-rotation element 28n and is rotatably mounted on a protective cover body 76n of a protective cover 22n via a rotary bearing 174n.
- An axis of rotation of the unlocking element 58n is aligned substantially perpendicular to a protective hood body 76m.
- the unlocking member 58n is held together with the anti-rotation member 28m in an anti-rotation position with a receiving unit 60m by means of a moving member 54m formed by a spring member 56m.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Portable Power Tools In General (AREA)
- Sawing (AREA)
- Harvester Elements (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Description
Die Erfindung geht aus von einem Handwerkzeugmaschinensystem nach dem Oberbegriff des Anspruchs 1.The invention is based on a hand-held power tool system according to the preamble of claim 1.
Aus der
Die Druckschrift
Die Erfindung geht aus von einem Handwerkzeugmaschinensystem mit einer Handwerkzeugmaschine, insbesondere einer Winkelschleifmaschine, einer Schutzhaubeneinheit und einer Schutzhaubenverdrehsicherungseinheit, die zu einer Verdrehsicherung zwischen der Schutzhaubeneinheit und der Handwerkzeugmaschine während eines Schadensfalls eines Werkzeugs vorgesehen ist und eine Schutzhaubenverdrehsicherungseinheit zu einer Verdrehsicherung zwischen der Schutzhaubeneinheit und der Handwerkzeugmaschine mit einer Befestigung der Schutzhaubeneinheit an der Handwerkzeugmaschine in einer Arbeitsposition der Schutzhaubeneinheit vorgesehen ist. In diesem Zusammenhang soll unter "vorgesehen" insbesondere speziell ausgestattet und/oder speziell ausgelegt verstanden werden. Des Weiteren soll unter einer "Arbeitsposition der Schutzhaubeneinheit" insbesondere eine Position der Schutzhaubeneinheit verstanden werden, in der die Schutzhaubeneinheit in einem regulären Arbeitsbetrieb der Handwerkzeugmaschine verdrehfest an der Handwerkzeugmaschine angeordnet ist und eine Schutzhaube der Schutzhaubeneinheit einen vorteilhaften Schutz für einen Bediener vor einem Kontakt mit einem Werkzeug, insbesondere einem scheibenförmigen, rotierend antreibbaren Werkzeug, und/oder vor in Richtung des Bedieners geschleuderten Bearbeitungsresten gewährt. Ferner soll unter "einem Schadensfall eines Werkzeugs" insbesondere ein im Betrieb der Handwerkzeugmaschine berstendes Werkzeug verstanden werden, wobei einzelne Werkzeugteile aufgrund einer Rotation des Werkzeugs dabei nach außen geschleudert werden. Durch die erfindungsgemäße Ausgestaltung gemäß Anspruch 1 kann ein effektiver und insbesondere sicherer Schutz eines Bedieners der Handwerkzeugmaschine vor dem im Betrieb der Handwerkzeugmaschine rotierenden Werkzeug und/oder insbesondere in einem Schadensfall des Werkzeugs, wie beispielsweise im Falle des berstenden Werkzeugs, vor in Richtung des Bedieners umherfliegenden Teilen des Werkzeugs erreicht werden. Vorteilhafterweise ist eine Dimensionierung der Schutzhaubenverdrehsicherungseinheit in einer Verdrehsicherungsposition der Schutzhaubeneinheit mit der Handwerkzeugmaschine zur Aufnahme von im Schadensfall des Werkzeugs auftretenden Kräften ausgelegt, die von auf die Schutzhaubeneinheit treffenden Werkzeugteilen des geborstenen Werkzeugs auf die Schutzhaubeneinheit übertragen werden. Vorteilhafterweise wird eine Position der Schutzhaubeneinheit während des Schadensfalls des Werkzeugs mittels der Schutzhaubenverdrehsicherungseinheit und eine Funktionsfähigkeit der Schutzhaubeneinheit vorzugsweise beibehalten. Des Weiteren ist insbesondere eine Schutzposition bzw. eine Verdrehsicherungsposition der Schutzhaubeneinheit von der Arbeitsposition der Schutzhaubeneinheit gebildet, so dass die Verdrehsicherungsposition konstruktiv einfach für einen Bediener des Handwerkzeugmaschinensystems erreicht werden kann. Besonders vorteilhaft ist die Schutzhaubenverdrehsicherungseinheit dabei zumindest teilweise an einer Schutzhaube und/oder an einer Verschlusseinheit der Schutzhaubeneinheit angeordnet. Dabei soll unter einer "Verschlusseinheit" insbesondere eine Einheit verstanden werden, die vorzugsweise zu einer Befestigung der Schutzhaubeneinheit an der Handwerkzeugmaschine vorgesehen ist und zumindest ein Verschlusselement aufweist, wie beispielsweise ein Spannband, eine Schraube, ein Verschlusshebel usw., wobei eine Befestigung der Schutzhaubeneinheit an der Handwerkzeugmaschine mittels der Verschlusseinheit formschlüssig und/oder kraftschlüssig erfolgen kann. Des Weiteren soll unter "angeordnet" hierbei insbesondere verstanden werden, dass die Schutzhaubenverdrehsicherungseinheit und die Schutzhaube und/oder die Verschlusseinheit eine gemeinsame Montageeinheit aufweisen und während eines gemeinsamen Montagevorgangs in einer Betriebsposition an der Handwerkzeugmaschine montiert werden können.The invention relates to a hand-held power tool system with a hand tool, in particular an angle grinder, a guard unit and a guard rotation preventing unit, which is provided for a rotation between the guard unit and the power tool during a damage case of a tool and a Guard rotation preventing unit is provided for a rotation between the guard unit and the power tool with an attachment of the guard unit to the power tool in a working position of the guard unit. In this context, "intended" should be understood to mean in particular specially equipped and / or specially designed. Furthermore, a "working position of the protective hood unit" should be understood to mean, in particular, a position of the protective hood unit in which the protective hood unit is rotationally fixed to the handheld power tool in a regular working operation of the handheld power tool and a protective hood of the guard unit provides advantageous protection for an operator from contact with a guard Tool, in particular a disc-shaped, rotatably driven tool, and / or grants in front of the operator thrown out processing residues. Furthermore, "a case of damage of a tool" should be understood to mean, in particular, a tool bursting during operation of the portable power tool, wherein individual tool parts are thereby thrown outwards due to rotation of the tool. The inventive design according to claim 1, an effective and especially safe protection of an operator of the power tool before the rotating tool during operation of the power tool and / or in particular in case of damage of the tool, such as in the case of bursting tool, flying in front of the operator Parts of the tool can be achieved. Advantageously, a dimensioning of the guard rotation preventing unit is designed in a Verdrehsicherungsposition the guard unit with the power tool for receiving forces occurring in the event of damage of the tool, which are transmitted from hitting the guard unit tool parts of the ruptured tool on the guard unit. Advantageously, a position of the protective hood unit during the event of damage of the tool by means of the guard rotation-preventing unit and a functionality of the protective hood unit is preferably maintained. Furthermore, in particular, a protective position or an anti-rotation position of the protective hood unit is formed by the working position of the protective hood unit, so that the anti-rotation position can be achieved structurally simple for an operator of the power tool system. In this case, the protective hood rotation-locking unit is particularly advantageously arranged at least partially on a protective hood and / or on a closure unit of the protective hood unit. In this case, a "closure unit" should be understood to mean, in particular, a unit which is preferably provided for attachment of the protective hood unit to the handheld power tool and has at least one closure element, such as a tightening strap, a screw, a locking lever, etc., wherein an attachment of the Guard unit on the hand tool by means of the locking unit can be done positively and / or non-positively. Furthermore, the term "arranged" is to be understood in particular to mean that the guard rotation-preventing unit and the protective hood and / or the closure unit have a common assembly unit and can be mounted in an operating position on the handheld power tool during a common assembly operation.
Eine konstruktiv einfache und insbesondere stabile Verdrehsicherung zwischen der Schutzhaubeneinheit und der Handwerkzeugmaschine kann erreicht werden, wenn die Schutzhaubenverdrehsicherungseinheit eine Kraftschlusseinheit und/oder eine Formschlusseinheit aufweist, die zu einer kraftschlüssigen und/oder einer formschlüssigen Verdrehsicherung zwischen der Schutzhaubeneinheit und der Handwerkzeugmaschine vorgesehen ist. Erfindungsgemäß wird vorgeschlagen, dass die Schutzhaubenverdrehsicherungseinheit zumindest ein an der Schutzhaubeneinheit angeordnetes Verdrehsicherungselement und ein an der Handwerkzeugmaschine angeordnetes Verdrehsicherungselement aufweist, die in der Arbeitsposition der Schutzhaubeneinheit zumindest teilweise in einer Verdrehsicherungsposition angeordnet sind, wodurch vorteilhaft eine wirksame Verdrehsicherung in einer Arbeitsposition der Schutzhaubeneinheit realisiert werden kann und damit ein hoher Sicherheitsstandard für einen Bediener erreicht werden kann.A structurally simple and in particular stable rotation lock between the protective hood unit and the hand tool can be achieved if the guard anti-rotation lock unit has a force-locking unit and / or a positive locking unit, which is provided for a non-positive and / or a positive rotation between the guard unit and the power tool. According to the invention, it is proposed that the guard rotation-preventing unit has at least one anti-rotation element arranged on the guard unit and an anti-rotation element arranged on the hand tool unit, which are arranged at least partially in an anti-rotation position in the working position of the guard unit, whereby an effective anti-rotation device can advantageously be realized in a working position of the guard unit and thus a high safety standard for an operator can be achieved.
Ist zudem das Verdrehsicherungselement zumindest teilweise von einem Rastelement gebildet, das dazu vorgesehen ist, eine Bewegung der Schutzhaubeneinheit in zumindest eine Richtung zu sperren, kann vorteilhaft eine Verdrehung der Schutzhaubeneinheit, insbesondere im Falle eines berstenden Werkzeugs, verhindert und zumindest teilweise eine Positionsänderung der Schutzhaubeneinheit für einen Bediener des Handwerkzeugmaschinensystems erleichtert werden. Vorzugsweise entspricht eine Sperrrichtung des Rastelements einer Rotationsrichtung eines Werkzeugs, so dass eine vorteilhafte Verdrehsicherung im Schadensfall des Werkzeugs erreicht werden kann.If, in addition, the anti-rotation element is at least partially formed by a detent element which is intended to block a movement of the protective hood unit in at least one direction, twisting of the protective hood unit, in particular in the case of a bursting tool, advantageously prevents and at least partially reverses the position of the protective hood unit facilitate an operator of the power tool system. Preferably, a locking direction of the locking element corresponds to a direction of rotation of a tool, so that an advantageous rotation in case of damage of the tool can be achieved.
Des Weiteren können vorteilhaft weitere Bauteile, Bauraum, Montageaufwand und Kosten eingespart werden, wenn das Verdrehsicherungselement zumindest teilweise einstückig mit einer Verschlusseinheit und/oder einer Schutzhaube der Schutzhaubeneinheit ausgebildet ist. Unter "einstückig" soll dabei insbesondere einteilig, aus einem Guss hergestellt und/oder als ein Bauteil ausgebildet verstanden werden.Furthermore, it is advantageously possible to save further components, installation space, assembly costs and costs if the anti-rotation locking element is formed at least partially in one piece with a closure unit and / or a protective hood of the protective hood unit. The term "integral" is intended to be understood in particular to be in one piece, produced from a casting and / or designed as a component.
Weist die Verschlusseinheit zumindest ein Verschlusselement auf, an dem das Verdrehsicherungselement angeordnet ist, kann eine montagesichere Verdrehsicherung der Schutzhaubeneinheit für einen Bediener erreicht werden.If the closure unit has at least one closure element on which the anti-rotation lock element is arranged, an anti-rotation lock of the guard unit can be achieved for an operator that is secure during installation.
Eine besonders einfache Montage bzw. Demontage der Schutzhaubeneinheit an der Handwerkzeugmaschine kann vorteilhaft erreicht werden, wenn das Verdrehsicherungselement bewegbar an einer Verschlusseinheit und/oder an einer Schutzhaube der Schutzhaubeneinheit gelagert ist. Vorzugsweise ist das Verdrehsicherungselement zu einem Lösen der Verdrehsicherungsposition in eine Entriegelungsposition manuell von einem Bediener bewegbar angeordnet. Besonders vorteilhaft kann dies erreicht werden, wenn das Verdrehsicherungselement zumindest teilweise um eine Schwenkachse drehbar an der Verschlusseinheit und/oder an der Schutzhaube gelagert ist.A particularly simple assembly and disassembly of the protective hood unit on the hand tool machine can advantageously be achieved if the anti-rotation element is movably mounted on a locking unit and / or on a protective hood of the protective hood unit. Preferably, the anti-rotation element for releasing the anti-rotation position in an unlocking position is arranged manually movable by an operator. This can be achieved in a particularly advantageous manner when the anti-rotation element is mounted at least partially rotatably about a pivot axis on the closure unit and / or on the protective hood.
In einer alternativen Ausgestaltung der Erfindung wird vorgeschlagen, dass die Schutzhaubenverdrehsicherungseinheit zumindest ein Hebelelement aufweist, an dem das Verdrehsicherungselement zumindest teilweise angeordnet ist, wodurch vorteilhaft das Verdrehsicherungselement mittels des Hebelelements in eine Verdrehsicherungsposition bzw. in eine inaktive Position bewegt werden kann. Besonders vorteilhaft ist hierbei das Hebelelement drehbar an der Handwerkzeugmaschine und/oder an der Schutzhaubeneinheit gelagert. Erfindungsgefäß wird vorgeschlagen, dass die Schutzhaubenverdrehsicherungseinheit zumindest ein Federelement als Bewegungselement aufweist, das das Verdrehsicherungselement bei Erreichen der Arbeitsposition der Schutzhaubeneinheit in eine Verdrehsicherungsposition bewegt, wodurch ein von einem Bediener unabhängiger, zumindest teilweise automatischer Fixiermechanismus bzw. Bewegungsmechanismus zum Erreichen der Verdrehsicherungsposition des Verdrehsicherungselements erreicht und ein hoher Sicherheitsstandard für den Bediener unabhängig von einer manuellen Betätigung durch den Bediener der Schutzhaubenverdrehsicherungseinheit erzielt werden kann. Vorteilhafterweise ist das Bewegungselement von weiteren, dem Fachmann als sinnvoll erscheinender Bewegungselementen, wie beispielsweise ein von einem Magneten gebildetes Bewegungselement, gebildet.In an alternative embodiment of the invention, it is proposed that the guard rotation-preventing unit has at least one lever element, on which the anti-rotation element is at least partially disposed, whereby advantageously the anti-rotation element can be moved by means of the lever member in a Verdrehsicherungsposition or in an inactive position. Particularly advantageous here is the lever member rotatably mounted on the power tool and / or on the guard unit. Invention vessel is proposed that the Schutzschaudrehdrehsicherungseinheit has at least one spring element as a moving element, which moves the anti-rotation element when reaching the working position of the protective hood unit in a Verdrehsicherungsposition, whereby an independent of an operator, at least partially automatic fixing mechanism or movement mechanism to achieve the anti-rotation position of the anti-rotation element reaches and a high safety standard for the operator can be achieved independently of a manual operation by the operator of the guard rotation unit. Advantageously, the movement element is formed by further movement elements that appear appropriate to the person skilled in the art, such as, for example, a movement element formed by a magnet.
In einer vorteilhaften Weiterbildung der Erfindung wird vorgeschlagen, dass die Schutzhaubenverdrehsicherungseinheit zumindest ein Entriegelungselement aufweist, das zu einem Bewegen des Verdrehsicherungselements aus der Verdrehsicherungsposition vorgesehen ist. Hierdurch kann eine vorteilhafte Demontage der Schutzhaubeneinheit nach einem Arbeitsprozess bzw. nach einem Betrieb mit dem Handwerkzeugmaschinensystem erreicht werden. Vorzugsweise ist das Entriegelungselement zumindest teilweise bewegbar an der Schutzhaubeneinheit gelagert, insbesondere federbelastet in der Verdrehsicherungsposition vorgespannt gelagert, so dass neben einer kompakten Anordnung des Entriegelungselements eine vorteilhafte Sicherung des Verdrehsicherungselements in der Verdrehsicherungsposition erzielt werden kann.In an advantageous embodiment of the invention, it is proposed that the guard rotation-preventing unit has at least one unlocking element which is provided for moving the anti-rotation element from the anti-rotation position. This allows an advantageous disassembly of the protective hood unit after a working process or after an operation be achieved with the power tool system. Preferably, the unlocking element is at least partially movably mounted on the guard unit, in particular spring-loaded biased in the anti-rotation, so that in addition to a compact arrangement of the unlocking an advantageous securing of the anti-rotation in the anti-rotation position can be achieved.
Des Weiteren können vorteilhaft weitere Bauteile, Bauraum, Montageaufwand und Kosten eingespart werden, wenn das Entriegelungselement zumindest teilweise einstückig mit dem Verriegelungselement ausgebildet ist.Furthermore, advantageously, further components, installation space, installation effort and costs can be saved if the unlocking element is at least partially formed integrally with the locking element.
Vorteilhafterweise weist die Handwerkzeugmaschine eine Aufnahmeeinheit zur Aufnahme eines Werkzeugs auf, an der das Verdrehsicherungselement angeordnet ist, wodurch eine insbesondere Bauraum sparende, kompakte Schutzhaubenverdrehsicherungseinheit erreicht werden kann, indem das Verdrehsicherungselement der Handwerkzeugmaschine an einem Bauteil angeordnet ist, das vorzugsweise in direktem Kontakt mit der Schutzhaubeneinheit in einer Arbeitsposition der Schutzhaubeneinheit angeordnet ist.Advantageously, the handheld power tool has a receiving unit for receiving a tool on which the anti-rotation element is arranged, whereby a particular space-saving, compact Schutzschaudrehdrehsicherungseinheit can be achieved by the anti-rotation element of the power tool is arranged on a component, preferably in direct contact with the protective hood unit is arranged in a working position of the protective hood unit.
Zudem wird vorgeschlagen, dass das an der Aufnahmeeinheit angeordnete Verdrehsicherungselement bewegbar an der Aufnahmeeinheit angeordnet ist, wodurch eine besonders einfache Montage bzw. Demontage der Schutzhaubeneinheit an der Handwerkzeugmaschine vorteilhaft erreicht werden kann.In addition, it is proposed that the anti-rotation element arranged on the receiving unit is movably arranged on the receiving unit, whereby a particularly simple assembly and disassembly of the protective hood unit on the handheld power tool can advantageously be achieved.
Vorzugsweise können weitere Bauteile, Bauraum, Montageaufwand und Kosten eingespart werden, wenn das an der Aufnahmeeinheit angeordnete Verdrehsicherungselement zumindest teilweise einstückig mit der Aufnahmeeinheit ausgebildet ist.Preferably, further components, installation space, assembly costs and costs can be saved if the anti-rotation element arranged on the receiving unit is formed at least partially in one piece with the receiving unit.
Weist die Schutzhaubenverdrehsicherungseinheit zumindest zwei Verdrehsicherungselemente auf, die in eine Umfangsrichtung nacheinander an der Schutzhaubeneinheit angeordnet sind, und/oder zumindest zwei Verdrehsicherungselemente auf, die in eine Umfangsrichtung nacheinander an der Handwerkzeugmaschine, insbesondere an deren Aufnahmeeinheit, angeordnet sind, kann eine mehrfach formschlüssige und/oder kraftschlüssige Verbindung zwischen der Schutzhaubeneinheit und der Handwerkzeugmaschine erreicht werden und/oder es kann die Schutzhaubeneinheit in unterschiedlichen Positionen entlang der Umfangsrichtung an der Handwerkzeugmaschine verdrehsicher, insbesondere bei einem berstenden Werkzeug, montiert werden. Dabei soll unter einer "Umfangsrichtung" insbesondere eine Umfangsrichtung der Schutzhaubeneinheit verstanden werden, die in einem montierten Zustand der Schutzhaubeneinheit im Wesentlichen parallel zu einer Rotationsrichtung des Werkzeugs ausgerichtet ist.Does the guard rotation unit on at least two anti-rotation elements, which are arranged in a circumferential direction successively on the guard unit, and / or at least two anti-rotation elements, which are arranged in a circumferential direction successively on the hand tool, in particular on the receiving unit, a multi-positive and / or non-positive connection between the protective hood unit and the power tool can be achieved and / or it can be the guard unit in different positions along the circumferential direction of the power tool against rotation, in particular a bursting tool mounted. It should under one "Circumferential direction" in particular a circumferential direction of the protective hood unit are understood, which is aligned in an assembled state of the protective hood unit substantially parallel to a rotational direction of the tool.
Besonders vorteilhaft umfasst die Erfindung eine Handwerkzeugmaschine für ein rotierendes, vorzugsweise scheibenförmiges Werkzeug, mit einem Maschinengehäuse, das einen Flansch bzw. einen Maschinenhals aufweist, an dem eine Schutzhaube, insbesondere aus Blech bestehend, zum Abdecken des Werkzeugs lösbar spannbar ist, wobei die Schutzhaube einen Schutzhaubenkörper hat, der aus einem kreisscheibenförmigen Stück, insbesondere mit abgewinkeltem Außenrand besteht und eine mittige kreisförmige Ausnehmung hat, an deren Rand ein Schutzhaubenstutzen bzw. -kragen gebildet wird, der ringförmig ein Spannband trägt, das mittels eines Spannmittels zusammenziehbar ist und wobei eine zwischen Maschinenhals und Schutzhaube wirkende Verdrehsicherung zwischen Schutzhaube und Maschinenhals in Gestalt einer Profilierung angeordnet ist, wobei die Schutzhaube über das Spannband und/oder über das Spannmittel in seiner Spannposition mehrfach formschlüssig und/oder kraftschlüssig mit dem Maschinenhals kuppelbar und damit drehfestlegbar ist und zum Erreichen einer Löseposition außer Formschluss und/oder Kraftschluss zum Maschinenhals bringbar ist, wobei die Schutzhaube sodann drehverstellbar ist.Particularly advantageous, the invention comprises a hand tool for a rotating, preferably disc-shaped tool, with a machine housing having a flange or a machine neck on which a protective hood, in particular made of sheet metal, for covering the tool is releasably clamped, wherein the protective cover a Protective hood body has, which consists of a circular disk-shaped piece, in particular with angled outer edge and has a central circular recess, at the edge of a guard neck or collar is formed, which carries a ring-like tension band, which is contractible by means of a clamping means and one between machine neck and guard acting anti-rotation between guard and machine neck is arranged in the form of a profiling, the guard on the clamping band and / or on the clamping means in its clamping position multiple positive and / or non-positive with the machine nhals can be coupled and thus drehfestlegbar and to achieve a release position except positive engagement and / or adhesion to the machine neck can be brought, the guard is then rotationally adjustable.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Die Zeichnung, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Es zeigen:
- Fig. 1
- eine Explosionsdarstellung eines erfindungsgemäßen Handwerkzeugmaschinesystems,
- Fig. 2a, 2b
- die Schutzhaubenverdrehsicherungseinheit aus
Figur 1 mit einem an dem Spannband bewegbar gelagerten Verdrehsicherungselement in einer schematischen Teilansicht von oben in einer ersten (Fig. 2a ) und einer zweiten Ausgestaltungsvariante (Fig. 2b ), - Fig. 3
- die Schutzhaubenverdrehsicherungseinheit mit einem alternativen an dem Spannband bewegbar gelagerten Verdrehsicherungselement in einer schematischen Schnittdarstellung,
- Fig. 4a, 4b
- eine Schutzhaubenverdrehsicherungseinheit mit einem einstückig mit einem Spannband ausgebildeten Verdrehsicherungselement und einer Positioniereinheit in einer schematischen Teilansicht von oben (
Fig. 4a ) und einer schematischen Seitenansicht (Fig. 4b ), - Fig. 5
- eine Schutzhaubenverdrehsicherungseinheit mit einem einstückig mit einem Spannband ausgebildeten Verdrehsicherungselement im Bereich eines Verschlusselements in einer schematischen Teilansicht,
- Fig. 6
- die Schutzhaubenverdrehsicherungseinheit aus einem einstückig mit einem Verschlusselement ausgebildeten Verdrehsicherungselement in einer schematischen Teilansicht,
- Fig. 7a, 7b, 7c
- das Handwerkzeugmaschinesystem mit einer Positioniereinheit und der Schutzhaubenverdrehsicherungseinheit und einer zu
Figur 6 alternativ ausgestalteten Verschlusseinheit und in einer schematischen Teilansicht (Fig. 7a ), in einer Seitenansicht (Fig. 7b ) und in einer weiteren alternativen Ausgestaltung in einer Seitenansicht (Fig. 7c ), - Fig. 8a,8b
- eine Schutzhaubenverdrehsicherungseinheit mit einem an einem Verschlusselement bewegbar gelagerten Verdrehsicherungselement in einer schematischen Seitenansicht (
Fig. 8a ) und einer perspektivischen Ansicht (Fig. 8b ), - Fig. 9
- eine Schutzhaubenverdrehsicherungseinheit mit einem an einer Aufnahmeeinheit bewegbar gelagertem Verdrehsicherungselement in einer Explosionsdarstellung,
- Fig. 10
- eine Schutzhaubenverdrehsicherungseinheit, die einstückig an einer Schutzhaube einer Schutzhaubeneinheit angeordnet ist in einer perspektivischen Ansicht,
- Fig. 11
- eine Schutzhaubenverdrehsicherungseinheit einstückig mit einer Schutzhaube ausgebildeten Verdrehsicherungselementen, die mittels einem Federelement in einer Verdrehsicherungsposition gehalten wird in einer schematischen Teilansicht,
- Fig. 12
- eine Schutzhaubenverdrehsicherungseinheit mit einer auf einen Kraftschluss basierenden Verdrehsicherung in einer Explosionsdarstellung,
- Fig. 13a, 13b
- eine Schutzhaubenverdrehsicherungseinheit mit einem an der Schutzhaube angeordneten Entriegelungselement in einer schematischen Schnittdarstellung (
Fig. 13a ) und einer perspektivischen Teilansicht (Fig. 13b ), - Fig. 14
- eine Schutzhaubenverdrehsicherungseinheit mit einem an der Schutzhaube angeordneten Verdrehsicherungselement und Entriegelungselement in einer schematischen Ansicht von oben und
- Fig. 15
- eine zu
Figur 14 alternative Schutzhaubenverdrehsicherungseinheit mit einem an der Schutzhaube angeordneten Verdrehsicherungselement und Entriegelungselement in einer schematischen Ansicht von oben.
- Fig. 1
- an exploded view of a hand tool machine system according to the invention,
- Fig. 2a, 2b
- the guard rotation lock unit off
FIG. 1 in a schematic partial view from above in a first (FIG. 2) with an anti-rotation element movably mounted on the strapFig. 2a ) and a second embodiment variant (Fig. 2b ) - Fig. 3
- the guard rotation preventing unit with an alternative on the tensioning belt movably mounted anti-rotation element in a schematic sectional view,
- Fig. 4a, 4b
- a guard rotation preventing unit with an anti-rotation element integrally formed with a tension band and a positioning unit in a schematic partial view from above (
Fig. 4a ) and a schematic side view (Fig. 4b ) - Fig. 5
- 3 shows a protective hood rotation-locking unit with an anti-rotation element formed integrally with a tension band in the region of a closure element in a schematic partial view;
- Fig. 6
- the guard rotation preventing unit of a one-piece formed with a closure element anti-rotation element in a schematic partial view,
- Fig. 7a, 7b, 7c
- the hand-held power tool system with a positioning unit and the guard rotation lock unit and one too
FIG. 6 alternatively configured closure unit and in a schematic partial view (Fig. 7a ), in a side view (Fig. 7b ) and in a further alternative embodiment in a side view (Fig. 7c ) - Fig. 8a, 8b
- 1 shows a protective hood anti-rotation lock unit with an anti-rotation element movably mounted on a closure element in a schematic side view (FIG.
Fig. 8a ) and a perspective view (Fig. 8b ) - Fig. 9
- a protective hood rotation-locking unit with an anti-rotation element movably mounted on a receiving unit in an exploded view,
- Fig. 10
- a guard rotation preventing unit, which is integrally arranged on a protective hood of a protective hood unit in a perspective view,
- Fig. 11
- a guard rotation preventing unit integrally formed with a protective hood anti-rotation elements, which is held by a spring element in a Verdrehsicherungsposition in a schematic partial view,
- Fig. 12
- a guard rotation anti-rotation unit with an adhesion-based anti-twist device in an exploded view,
- Fig. 13a, 13b
- 3 shows a protective hood rotation-locking unit with a release element arranged on the protective hood, in a schematic sectional representation (FIG.
Fig. 13a ) and a perspective partial view (Fig. 13b ) - Fig. 14
- a guard Verdrehsicherungseinheit with an arranged on the guard anti-rotation and unlocking in a schematic view from above and
- Fig. 15
- one too
FIG. 14 alternative guard rotation anti-rotation unit with an arranged on the guard anti-rotation and unlocking in a schematic view from above.
In
Die Schutzhaubenverdrehsicherungseinheit 16a sichert die Schutzhaubeneinheit 14a in einem Schadensfall des Werkzeugs 18a, insbesondere bei einem berstenden Werkzeug 18a, gegen ein unerwünschtes Verdrehen. Hierzu weist die Schutzhaubenverdrehsicherungseinheit 16a eine Formschlusseinheit 26a auf, die zu einer formschlüssigen Verbindung zwischen der Schutzhaubeneinheit 14a und dem Aufnahmeflansch 86a der Handwerkzeugmaschine 12a vorgesehen ist, wobei eine Formschlussverbindung zeitgleich mit einer Befestigung der Schutzhaubeneinheit 14a in einer Arbeitsposition an dem Aufnahmeflansch 86a einhergeht. Zur Erreichung der Formschlussverbindung weist die Formschlusseinheit 26a bzw. die Schutzhaubenverdrehsicherungseinheit 16a drei von jeweils einem Formschlusselement gebildete Verdrehsicherungselemente 28a, 30a, 32a auf, die an dem Spannband 84a der Verschlusseinheit 20a angeordnet sind, und mehrere, von jeweils einem Formschlusselement gebildete Verdrehsicherungselemente 34a, 36a, die einstückig mit der Aufnahmeeinheit 60a ausgebildet sind. Die an der Aufnahmeeinheit 60a angeordneten Verdrehsicherungselemente 34a, 36a sind von Rastausnehmungen gebildet und in Umfangsrichtung 62a, 64a nacheinander um den Aufnahmeflansch 60a angeordnet, wobei die Verdrehsicherungselemente 34a, 36a in eine parallel zur Achse 74a verlaufende Richtung 96a von der Aufnahmeeinheit 60a in Richtung des Werkzeugs 18a offen ausgebildet sind und an einem Grundelement 98a der Aufnahmeeinheit 60a, das im Wesentlichen senkrecht zur Achse 74a ausgerichtet ist, angeordnet sind. Die Anordnung der Verdrehsicherungselemente 34a, 36a ermöglicht ein Anbringen bzw. ein Befestigen der Schutzhaubeneinheit 14a an unterschiedlichen Arbeitspositionen in der Umfangsrichtung 62a, 64a an der Handwerkzeugmaschine 12a.The protective hood rotation-preventing
Die drei Verdrehsicherungselemente 28a, 30a, 32a der Schutzhaubeneinheit 14a sind in Umfangsrichtung 62a, 64a nacheinander angeordnet und von Rastelementen 38a, 40a, 42a gebildet, die eine Bewegung der Schutzhaubeneinheit 14a in einem montiertem Zustand in eine Richtung sperren (
Des Weiteren sind die Verdrehsicherungselemente 28a, 30a, 32a bewegbar an dem Spannband 84a gelagert. Hierzu weist die Schutzhaubenverdrehsicherungseinheit 16a ein Hebelelement 52a auf, das um eine Schwenkachse 50a an dem Spannband 84a schwenkbar angeordnet ist. Die Schwenkachse 50a des Hebelelements 52a ist in einem montierten Zustand der Schutzhaubeneinheit 14a an der Handwerkzeugmaschine 12a im Wesentlichen senkrecht zur Achse 74a ausgerichtet und erstreckt sich von der Achse 74a in eine radiale Richtung 80a. Die Verdrehsicherungselemente 28a, 30a, 32a sind an einem der Schwenkachse 50a abgewandten Ende 100a des Hebelelements 52a angeordnet und erstrecken sich fortsatzartig entlang einer Schwenkrichtung 102a um die Schwenkachse 50a an dem Hebelelement 52a, wobei die Verdrehsicherungselemente 28a, 30a, 32a in einer Arbeitsposition der Schutzhaubeneinheit 14a an einer den Verdrehsicherungselementen 34a, 36a zugewandten Seite des Hebelelement 52a angeordnet sind.Furthermore, the
Ferner weist die Schutzhaubenverdrehsicherungseinheit 16a ein Bewegungselement 54a auf, das von einem Federelement 56a gebildet ist und das das Hebelelement 52a bzw. die Verdrehsicherungselemente 28a, 30a, 32a in eine Verdrehsicherungsposition bei Erreichen einer Arbeitsposition der Schutzhaubeneinheit 14a während der Montage mit der Handwerkzeugmaschine 12a bewegt. Hierdurch sind die Verdrehsicherungselemente 28a, 30a, 32a stets in der Verdrehsicherungsposition, sobald die Schutzhaubeneinheit 14a in der Arbeitsposition montiert ist. Das Federelement 56a ist an einem Abstützelement 104a des Spannbands 84a abgestützt, wobei das Abstützelement 104a entlang der Achse 74a an einem den Verdrehsicherungselementen 28a, 30a, 32a abgewandten Bereich 106a angeordnet ist und eine Federkraft das Hebelelement 52a entlang der Achse 74a in eine dem Werkzeug 18a abgewandte Richtung 108a drückt. Zu einem Lösen der Verdrehsicherungsposition der Verdrehsicherungselemente 28a, 30a, 32a weist das Hebelelement 52a ein von einer Lasche gebildetes Entriegelungselement 58a auf, das an dem der Schwenkachse 50a abgewandten Ende 100a des Hebelelements 52a angeordnet ist und sich entlang der radialen Richtung 80a nach außen an dem Hebelelement 52a erstreckt, so dass ein Bediener mittels der Lasche das Hebelelement 52a zusammen mit den Verdrehsicherungselementen 28a, 30a, 32a aus der Verdrehsicherungsposition entlang der Schwenkrichtung 102a bewegen kann. Grundsätzlich ist es zudem auch denkbar, dass die Verschlusseinheit 20a nur dann verschließbar ist, wenn sich die Verdrehsicherungselemente 28a, 30a, 32a in einer Verdrehsicherungsposition befinden. Für eine Demontage bzw. eine Positionsänderung der Schutzhaubeneinheit 14a in Umfangsrichtung 62a, 64a muss die Verschlusseinheit 20a gelöst werden und im Falle einer Verdrehsicherung in beide Richtungen auch die Schutzhaubenverdrehsicherungseinheit 16a aus ihrer Verdrehsicherungsposition gebracht werden, so dass die Verdrehsicherungselemente 28a, 30a, 32a außer Eingriff mit den Ausnehmungen der Aufnahmeeinheit 60a sind und eine Drehung bzw. eine Demontage der Schutzhaubeneinheit 14a bezüglich der Handwerkzeugmaschine 12a möglich ist.Further, the guard
Zudem weist das Handwerkzeugmaschinensystem 10a eine Kodierungsvorrichtung 110a auf, die dazu vorgesehen ist, eine Montage von Werkzeugen 18a bzw. von Werkzeugen 18a zusammen mit der Schutzhaubeneinheit 14a an dafür ungeeigneten Handwerkzeugmaschinen 12a zu verhindern. Hierzu weist das Spannband 84a ein Kodierungselement 112a der Kodierungsvorrichtung 110a auf, das einstückig mit dem Spannband 84a ausgebildet ist. Das Kodierungsvorrichtung 112a ist von einer sich in radialer Richtung 80a nach innen erstreckenden Ausprägung gebildet und weist eine rechteckige Form auf. Korrespondierend hierzu weist der Aufnahmeflansch 86a ein Kodierungselement 114a der Kodierungsvorrichtung 110a auf, das von einer Aussparung gebildet ist, in die das Kodierungsmittel 112a des Spannbands 84a bei einer Montage der Schutzhaubeneinheit 14a mit der Handwerkzeugmaschine 12a einführbar ist. Nach einem Einführen der Schutzhaubeneinheit 14a an der Aufnahmeeinheit 60a kann die Schutzhaubeneinheit 14a in eine Arbeitsposition gedreht werden. Hierzu weist der Aufnahmeflansch 86a eine in Umfangsrichtung 62a, 64a umlaufende Nut 116a auf, in der bei einer Drehung der Schutzhaubeneinheit 14a in die Arbeitsposition das Kodierungselement 112a geführt ist.In addition, the hand-held
In den
In
In
Um eine Montage der Schutzhaubeneinheit 14c bzw. eine Positionsänderung der bereits montierten Schutzhaubeneinheit 14c an einem Aufnahmeflansch für einen Bediener zu erleichtern, weist das Handwerkzeugmaschinensystem 10c eine Positioniervorrichtung 124c auf. Die Schutzhaubeneinheit 14c weist ein Positionierelement 126c der Positioniervorrichtung 124c auf, das einstückig mit dem Spannband 84c ausgebildet ist (
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Claims (20)
- Portable power tool system with a portable power tool (12a-n), in particular an angle grinder, a protective hood unit (14a-n) and a protective hood rotation prevention unit (16a-n) which is provided for preventing rotation between the protective hood unit (14a-n) and the portable power tool (12a-n) when a tool (18a-n) is damaged, wherein the protective hood rotation prevention unit (16a-n) is provided for preventing rotation between the protective hood unit (14a-n) and the portable power tool (12a-n) simultaneously with a fastening of the protective hood unit (14a-n) to the portable power tool (12a-n) in a working position of the protective hood unit (14a-n), characterized in that the protective hood rotation prevention unit (16a-n) has at least one rotation prevention element (28a, 30a, 32a; 28b-g; 28h, 30h; 28i, 30i, 32i; 281; 28m, 30m, 32m; 28n) arranged on the protective hood unit (14a-n) and a rotation prevention element (34a-n; 36a-g; 36i-j; 361-n) arranged on the portable power tool (12a-n), said rotation prevention elements being at least partially arranged in a rotation prevention position in the working position of the protective hood unit (14a-n), wherein the protective hood rotation prevention unit (16a-b; 16i; 161-n) has at least one movement element (54a-b; 54i; 541-n) which moves the rotation prevention element (28a, 30a, 32a; 28b; 28i; 281; 28m; 30m, 32m; 28n) into a rotation prevention position when the working position of the protective hood unit (14a-b; 14i; 141-n) is reached, wherein the movement element (54a-b; 54i; 54l-n) is formed by a spring element (56a-b; 56i; 561-n).
- Portable power tool system according to Claim 1, characterized in that the protective hood unit (14a-h) has a closure unit (20a-h) on which the protective hood rotation prevention unit (16a-h) is at least partially arranged.
- Portable power tool system according to Claim 1, characterized in that the protective hood unit (14i-n) has a protective hood (22i-n) on which the protective hood rotation prevention unit (16i-n) is at least partially arranged.
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16k) has a force-fitting unit (24k) which is provided for a force-fitting prevention of rotation between the protective hood unit (14k) and the portable power tool (12k).
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16a-j, 16l-n) has a form-fitting unit (26a-j, 26l-n) which is provided for a form-fitting prevention of rotation between the protective hood unit (14a-j, 14l-n) and the portable power tool (12a-j, 12l-n).
- Portable power tool system according to one of the preceding claims, characterized in that the rotation prevention element (28a, 30a, 32a; 28c; 28d) is at least partially formed by a latching element (38a, 40a, 42a; 38c; 38d) which is provided for blocking a movement of the protective hood unit (14a; 14c; 14d) in at least one direction.
- Portable power tool system at least according to one of the preceding claims, characterized in that the rotation prevention element (28c-f; 28h, 30h; 28i, 30i, 32i; 28-k) is at least partially formed integrally with a closure unit (20c-f; 20h) and/or a protective hood (22i-k) of the protective hood unit (14c-f; 14h-k).
- Portable power tool system at least according to one of the preceding claims, characterized in that the closure unit (20e-g) has at least one closure element (46e-g) on which the rotation prevention element (28eg) is arranged.
- Portable power tool system at least according to one of the preceding claims, characterized in that the rotation prevention element (28a, 30a, 32a; 28b; 28g; 281-n) is mounted movably on a closure unit (20a-b; 20g) and/or on a protective hood (22l-n) of the protective hood unit (14a-b; 14g; 141-n).
- Portable power tool system at least according to Claim 9, characterized in that the rotation prevention element (28a, 30a, 32a; 28b; 28n) is at least partially mounted rotatably about a pivot axis (50a-b; 50n).
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16a-b; 16h; 16n) has at least one lever element (52a-b; 52h; 52n) on which the rotation prevention element (28a, 30a, 32a; 28b; 34h; 28n) is at least partially arranged.
- Portable power tool system at least according to Claim 11, characterized in that the lever element (52a-b; 52h; 52n) is at least partially mounted rotatably on the portable power tool (12h) and/or on the protective hood unit (14a-b; 14n).
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16a-b; 16h; 161-n) has at least one release element (58a-b; 58h; 581-n) which is provided for moving the rotation prevention element (28a, 30a, 32a; 28b; 34h; 281, 28m, 30m, 32m; 28n) out of the rotation prevention position.
- Portable power tool system according to Claim 13, characterized in that the release element (58a-b; 581-n) is at least partially mounted movably on the protective hood unit (14a-b; 14l-n).
- Portable power tool system according to Claim 13, characterized in that the release element (58a-b; 58h; 581-n) is at least partially formed integrally with the rotation prevention element (28a, 30a, 32a; 28b; 34h; 281; 28m, 30m, 32m; 28n).
- Portable power tool system according to one of the preceding claims, characterized in that the portable power tool (12a-n) has a receiving unit (60a-n) for receiving a tool (18a-n), on which receiving unit the rotation prevention element (34a-n; 36a-g; 36i-j; 361-n) is arranged.
- Portable power tool system according to Claim 16, characterized in that the rotation prevention element (34h) arranged on the receiving unit (60h) is arranged movably on the receiving unit (60h).
- Portable power tool system according to Claim 16-17, characterized in that the rotation prevention element (34a-n; 36a-g; 36i-j; 361-n) arranged on the receiving unit (60a-g; 60i-n) is at least partially formed integrally with the receiving unit (60a-g; 60in).
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16a; 16h-i; 16m) has at least two rotation prevention elements (28a, 30a, 32a; 28h, 30h; 28i, 30i, 32i; 28m, 30m, 32m) which are arranged successively in a circumferential direction (62a, 64a; 62h-i, 64h-i; 62m, 64m) on the protective hood unit (14a; 14h-i; 14m).
- Portable power tool system according to one of the preceding claims, characterized in that the protective hood rotation prevention unit (16a-g; 16i-j; 16l-n) has at least two rotation prevention elements (34a-g, 36a-g; 34i-j, 36i-j; 34l-n, 36l-n) which are arranged successively in a circumferential direction (62a-g, 64a-g; 62i-j, 64i-j; 621-n, 641-n) on the portable power tool (12a-g; 12i-j; 12l-n).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610053305 DE102006053305A1 (en) | 2006-11-13 | 2006-11-13 | Hand tool with protective hood, in particular angle grinder |
PCT/EP2007/062136 WO2008058910A1 (en) | 2006-11-13 | 2007-11-09 | Portable power tool system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2106323A1 EP2106323A1 (en) | 2009-10-07 |
EP2106323B1 true EP2106323B1 (en) | 2017-07-26 |
Family
ID=39004838
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07822425.0A Active EP2106323B1 (en) | 2006-11-13 | 2007-11-09 | Portable power tool system |
EP07822405.2A Active EP2104590B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP20070822417 Not-in-force EP2106321B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP20070822423 Active EP2106322B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP07822409.4A Active EP2106326B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood securing device |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07822405.2A Active EP2104590B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP20070822417 Not-in-force EP2106321B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP20070822423 Active EP2106322B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood anti-rotation lock |
EP07822409.4A Active EP2106326B1 (en) | 2006-11-13 | 2007-11-09 | Protective hood securing device |
Country Status (6)
Country | Link |
---|---|
US (7) | US8460070B2 (en) |
EP (5) | EP2106323B1 (en) |
CN (5) | CN101534995A (en) |
DE (1) | DE102006053305A1 (en) |
RU (5) | RU2464150C2 (en) |
WO (5) | WO2008058904A1 (en) |
Families Citing this family (42)
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 |
DE102007052684A1 (en) * | 2007-11-05 | 2009-05-07 | Robert Bosch Gmbh | Hand tool |
DE102009017299A1 (en) * | 2009-04-11 | 2010-10-21 | Metabowerke Gmbh | Protective cover for electric hand tools and electric hand tool |
JP2010274404A (en) * | 2009-06-01 | 2010-12-09 | Makita Corp | Fixture fall preventing structure for grinding wheel cover in disc grinder |
DE102009048357A1 (en) * | 2009-10-06 | 2011-04-21 | Metabowerke Gmbh | Electric hand tool |
JP5544867B2 (en) * | 2009-12-21 | 2014-07-09 | 日立工機株式会社 | Grinder |
JP5587079B2 (en) * | 2010-07-22 | 2014-09-10 | 株式会社マキタ | Movable cover mounting structure and cutting machine |
JP5684056B2 (en) * | 2010-08-16 | 2015-03-11 | 株式会社マキタ | Hand tool |
JP5579575B2 (en) * | 2010-11-02 | 2014-08-27 | 株式会社マキタ | Disc grinder |
US9120202B2 (en) | 2011-06-30 | 2015-09-01 | Black & Decker Inc. | Shield assembly for a power tool |
JP5959421B2 (en) * | 2011-12-14 | 2016-08-02 | 株式会社マキタ | Grinder |
DE102011089758A1 (en) * | 2011-12-23 | 2013-06-27 | Robert Bosch Gmbh | Guard anti |
DE102011089754A1 (en) * | 2011-12-23 | 2013-06-27 | Robert Bosch Gmbh | Guard anti |
DE102012210766A1 (en) * | 2012-06-25 | 2014-01-02 | Robert Bosch Gmbh | system |
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 |
US8939816B2 (en) * | 2012-07-02 | 2015-01-27 | Sunmatch Industrial Co., Ltd. | Handheld pneumatic grinder with adjustable wheel guard structure |
DE102012214834A1 (en) * | 2012-08-21 | 2014-02-27 | Robert Bosch Gmbh | Guard device |
US10011009B2 (en) * | 2013-11-01 | 2018-07-03 | Robert Bosch Tool Corporation | Guide foot for an oscillating power tool |
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 |
CN104568427A (en) * | 2014-11-18 | 2015-04-29 | 中国航空动力机械研究所 | Conical gear shaft twisting-stopping simulation structure device and application |
US11072052B2 (en) | 2015-04-13 | 2021-07-27 | Black & Decker Inc. | Guard assembly for a power tool |
US11338426B2 (en) | 2015-11-02 | 2022-05-24 | Black & Decker, Inc. | Cordless power cutter |
USD800456S1 (en) | 2016-03-04 | 2017-10-24 | The Libman Company | Brush handle |
CA2959779C (en) | 2016-03-04 | 2019-06-11 | The Libman Company | Scissor-style toilet brush |
EP3251791B1 (en) | 2016-05-06 | 2019-03-27 | Black & Decker Inc. | Reversible lever for a guard assembly for a power tool |
EP3300839A1 (en) * | 2016-09-28 | 2018-04-04 | Hilti Aktiengesellschaft | Dust hood for a grinding machine |
DE102016220343A1 (en) | 2016-10-18 | 2018-04-19 | Robert Bosch Gmbh | Quick-clamping device for a portable power tool having at least one output shaft which can be driven in rotation, in particular an angle grinder |
TWI611865B (en) * | 2017-02-23 | 2018-01-21 | Safety cover for grinder | |
DE102017213746A1 (en) * | 2017-08-08 | 2019-02-14 | Robert Bosch Gmbh | Protective device for a hand tool machine |
CN107553416B (en) * | 2017-10-25 | 2024-03-15 | 锐奇控股股份有限公司 | Electric tool protection casing adjusting device and electric tool |
US11077535B2 (en) | 2018-02-14 | 2021-08-03 | Samsung Electronics Co., Ltd. | Process system having locking pin and locking pin |
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 |
EP3546124A1 (en) * | 2018-03-29 | 2019-10-02 | HILTI Aktiengesellschaft | Angle grinder |
CN110052933B (en) * | 2018-06-05 | 2021-04-13 | 弗兰克温特 | Grinding disc assembling and locking system containing glass fiber and angle grinder |
JP7110025B2 (en) * | 2018-08-07 | 2022-08-01 | 株式会社マキタ | Electric tool |
CN111791190A (en) * | 2019-04-03 | 2020-10-20 | 南京德朔实业有限公司 | Multifunctional electric tool |
US11685017B2 (en) | 2020-02-07 | 2023-06-27 | West Bufkin Industries, Llc | Storage shield for angle grinding disc |
DE202020101891U1 (en) * | 2020-04-06 | 2021-07-12 | C. & E. Fein Gmbh | Power tool |
WO2024119256A1 (en) * | 2022-12-06 | 2024-06-13 | Irani Papel E Embalagem S.A. | Cutting device for a mechanical resin applicator |
Family Cites Families (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2384243A (en) * | 1944-02-16 | 1945-09-04 | Flohr Andrew | Guard for emery wheels and the like |
US2819570A (en) | 1957-01-10 | 1958-01-14 | Berne Tocci Guilbert | Safety device for grinding machines |
US2922261A (en) * | 1957-04-24 | 1960-01-26 | Samuel J Rabkin | Apparatus for removing surface coatings |
US3068620A (en) * | 1961-02-06 | 1962-12-18 | Tocci-Guilbert Berne | Safety guard for grinding machine |
DE7028588U (en) * | 1970-07-29 | 1970-12-17 | Fritz Jetzt Fa | PROTECTIVE DEVICE FOR THE CUT-OFF DISC OF A MANUAL CUT-OFF MACHINE. |
SU495192A1 (en) | 1973-04-11 | 1975-12-15 | В Есоюзный Научно-Исследовательский Институт По Монтажным И Специальным Строительным Работам | Manual machine |
US4060940A (en) * | 1976-01-13 | 1977-12-06 | The Black And Decker Manufacturing Company | Adjustable guard construction for cut-off machine |
SU1121131A1 (en) | 1978-11-09 | 1984-10-30 | Предприятие П/Я Г-4572 | Protective guard for rotors of machines working with shot |
CS222119B1 (en) | 1981-03-10 | 1983-04-29 | Borivoj Prazsky | Protective cover of the grinding disc |
DE3338917A1 (en) * | 1983-10-27 | 1985-05-09 | C. & E. Fein Gmbh & Co, 7000 Stuttgart | PROTECTIVE HOOD FASTENING FOR PORTABLE ANGLE GRINDERS |
SE443532B (en) | 1985-02-25 | 1986-03-03 | Kaj Mickos | REMOVABLE PROTECTION FOR CRAFT CRAFTS, ROTABLE TOOLS |
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 |
SU1611615A1 (en) | 1987-10-13 | 1990-12-07 | Всесоюзный Научно-Исследовательский Инструментальный Институт | Chuck for securing screw taps |
DE3742430A1 (en) * | 1987-12-15 | 1989-06-29 | Waldmann Mechthild | Tool-clamping device for hand-held angle grinding machine (angle grinder) |
DE3744219A1 (en) * | 1987-12-24 | 1989-07-06 | Fein C & E | HAND GRINDING MACHINE WITH ADJUSTABLE PROTECTIVE COVER |
DE3940584A1 (en) * | 1989-12-08 | 1991-06-13 | Bosch Gmbh Robert | Adjustable guard for portable grinder - has encircling metal band with tensioning lever to clamp rim of guard onto neck of grinder |
CN2080440U (en) | 1990-06-14 | 1991-07-10 | 姜会仁 | Safety dust-catching grinding wheel |
DE9010138U1 (en) * | 1990-07-04 | 1990-09-13 | Hu, Cheng Te, Kuan Tien Hsiang, Tainan, Tw | |
RU2032520C1 (en) | 1990-10-01 | 1995-04-10 | Казанский Авиационный Институт Им.А.Н.Туполева | Polishing manually-operated machine |
US5537748A (en) * | 1991-07-09 | 1996-07-23 | Ryobi Limited | Cover structure for electric circular saw |
US5167215A (en) * | 1991-10-11 | 1992-12-01 | Equipment Development Co., Inc. | Dust removal apparatus for a concrete saw |
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 |
US5545082A (en) * | 1994-05-02 | 1996-08-13 | Courson; Michael W. | Dust control system for rotary hand tools |
DE4422247A1 (en) | 1994-06-24 | 1996-01-04 | Fraunhofer Ges Forschung | Guide and handle for hand=held appliance |
DE29601002U1 (en) * | 1996-01-20 | 1997-05-15 | Bosch Gmbh Robert | Electric hand machine tool |
SE507264C2 (en) | 1996-06-13 | 1998-05-04 | Atlas Copco Tools Ab | Handheld power tool |
DE19834839C2 (en) | 1998-08-01 | 2002-04-11 | C & E Fein Gmbh & Co Kg | Grinder with a removable protective hood |
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 |
CN1124185C (en) * | 2000-01-27 | 2003-10-15 | 宁波经济技术开发区中强电动工具有限公司 | Automatic locking unit of guard hood for bench of combined saw |
US6464573B1 (en) * | 2000-06-30 | 2002-10-15 | Porter-Cable Corporation | Guard attachment system with knurled clamp ring |
WO2002070201A1 (en) | 2001-03-07 | 2002-09-12 | Sparky Eltos | Safety guard for angle grinders |
DE10115635C1 (en) * | 2001-03-23 | 2002-10-24 | Flex Elektrowerkzeuge Gmbh | Protective hood for grinding wheel set at right-angles to axis of hand tool is shaped as semicircle and covers arc of circle under motor and has ratchet system to help hold it in place |
JP3983997B2 (en) * | 2001-04-26 | 2007-09-26 | 株式会社マキタ | Marnoco |
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 |
DE10158334C1 (en) | 2001-11-28 | 2003-02-20 | Metabowerke Gmbh | Electric angle grinder has protective hood adjusted relative to spindle neck of angle grinder via releasable cam mechanism |
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 |
CN2557286Y (en) * | 2002-07-30 | 2003-06-25 | 阿特拉斯·科普柯长春电动工具有限公司 | Universal directional grinding machine |
DE10259520A1 (en) * | 2002-12-19 | 2004-07-01 | Robert Bosch Gmbh | Electric hand tool |
SE525836C2 (en) | 2003-03-31 | 2005-05-10 | Atlas Copco Tools Ab | Grinding machine with explosion protection and spindle lock |
DE10316182A1 (en) * | 2003-04-09 | 2004-10-28 | Robert Bosch Gmbh | Hand grinder with protective hood |
CN100519064C (en) * | 2003-11-05 | 2009-07-29 | 胡桂强 | Flexible protective cover apparatus of cutter |
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 |
DE10346744A1 (en) | 2003-10-08 | 2005-05-12 | Kippes Gmbh | cutter |
DE10348395A1 (en) * | 2003-10-17 | 2005-05-19 | Robert Bosch Gmbh | Protective cover for a power tool, power tool and system with protective hood and power tool |
CN2726843Y (en) * | 2004-06-02 | 2005-09-21 | 墩丰机械工业股份有限公司 | Full sealing type eye protecting cover device of cut-off machine |
DE102004034441A1 (en) * | 2004-07-16 | 2006-02-16 | Narex Česká Lípa a.s. | Hand tool, in particular angle grinder |
DE102004047278A1 (en) * | 2004-09-29 | 2006-04-06 | Hilti Ag | Covering device for a tool device |
DK176122B1 (en) * | 2005-01-21 | 2006-09-11 | Flex Trim As | Apparatus, preferably for grinding a floor surface |
AU308238S (en) * | 2005-09-30 | 2006-08-01 | Bosch Gmbh Robert | Protection hood for angle grinder |
DE102005061867A1 (en) * | 2005-12-23 | 2007-07-05 | Robert Bosch Gmbh | Protective hood with clamping device for hand-held tool has turning lock element acting with turn lock counter-element on machine neck of tool |
EP1908549B1 (en) * | 2006-10-07 | 2010-02-17 | Metabowerke GmbH | Power tool, especially an angle grinder, with a protective cover |
DE102006053305A1 (en) * | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool with protective hood, in particular angle grinder |
DE102006053303A1 (en) * | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool for a rotating tool with protective cover |
DE102006053301A1 (en) * | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool for a rotating tool with protective cover |
DE102007041840A1 (en) * | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool with protective hood, in particular angle grinder |
-
2006
- 2006-11-13 DE DE200610053305 patent/DE102006053305A1/en not_active Withdrawn
-
2007
- 2007-11-09 US US12/280,850 patent/US8460070B2/en not_active Expired - Fee Related
- 2007-11-09 WO PCT/EP2007/062120 patent/WO2008058904A1/en active Application Filing
- 2007-11-09 CN CNA2007800421121A patent/CN101534995A/en active Pending
- 2007-11-09 EP EP07822425.0A patent/EP2106323B1/en active Active
- 2007-11-09 CN CN2007800421526A patent/CN101534998B/en active Active
- 2007-11-09 US US12/293,850 patent/US8221197B2/en active Active
- 2007-11-09 RU RU2009122216/02A patent/RU2464150C2/en not_active IP Right Cessation
- 2007-11-09 RU RU2009122232/02A patent/RU2463151C2/en not_active IP Right Cessation
- 2007-11-09 EP EP07822405.2A patent/EP2104590B1/en active Active
- 2007-11-09 US US12/282,828 patent/US8562395B2/en not_active Expired - Fee Related
- 2007-11-09 EP EP20070822417 patent/EP2106321B1/en not_active Not-in-force
- 2007-11-09 WO PCT/EP2007/062134 patent/WO2008058909A1/en active Application Filing
- 2007-11-09 US US12/280,009 patent/US8465348B2/en active Active
- 2007-11-09 RU RU2009122230/02A patent/RU2465118C2/en not_active IP Right Cessation
- 2007-11-09 EP EP20070822423 patent/EP2106322B1/en active Active
- 2007-11-09 WO PCT/EP2007/062136 patent/WO2008058910A1/en active Application Filing
- 2007-11-09 WO PCT/EP2007/062108 patent/WO2008058901A1/en active Application Filing
- 2007-11-09 EP EP07822409.4A patent/EP2106326B1/en active Active
- 2007-11-09 RU RU2009122235/02A patent/RU2466848C2/en not_active IP Right Cessation
- 2007-11-09 WO PCT/EP2007/062104 patent/WO2008058900A1/en active Application Filing
- 2007-11-09 RU RU2009122212/02A patent/RU2465117C2/en not_active IP Right Cessation
- 2007-11-09 CN CN2007800421403A patent/CN101534997B/en not_active Expired - Fee Related
- 2007-11-09 CN CN200780042189.9A patent/CN101535002B/en not_active Expired - Fee Related
- 2007-11-09 US US12/293,386 patent/US7955162B2/en not_active Expired - Fee Related
- 2007-11-09 CN CN2007800421140A patent/CN101534996B/en active Active
-
2011
- 2011-10-17 US US13/274,884 patent/US8231436B2/en active Active
-
2012
- 2012-05-29 US US13/482,121 patent/US8454411B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
None * |
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