EP2205397B1 - Dispositif de protection - Google Patents

Dispositif de protection Download PDF

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Publication number
EP2205397B1
EP2205397B1 EP08786495A EP08786495A EP2205397B1 EP 2205397 B1 EP2205397 B1 EP 2205397B1 EP 08786495 A EP08786495 A EP 08786495A EP 08786495 A EP08786495 A EP 08786495A EP 2205397 B1 EP2205397 B1 EP 2205397B1
Authority
EP
European Patent Office
Prior art keywords
main body
wall
basic body
tool
protective device
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.)
Not-in-force
Application number
EP08786495A
Other languages
German (de)
English (en)
Other versions
EP2205397A1 (fr
Inventor
Florian Esenwein
Albrecht Hofmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2205397A1 publication Critical patent/EP2205397A1/fr
Application granted granted Critical
Publication of EP2205397B1 publication Critical patent/EP2205397B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools

Definitions

  • the invention relates to a protective device according to the preamble of claim 1.
  • a protective device for a hand tool for a rotating, preferably disc-shaped tool, in particular for an angle grinder known with at least one basic body unit, wherein the basic body unit at least a semi-disc-shaped base body and a base body wall which is arranged transversely to a main extension surface of the base body and the tool radially surrounds, and has an intended for deformation absorption element, wherein the basic body unit comprises at least two sub-areas, which have specifically different absorption properties, wherein the absorption element has a profiling for receiving kinetic energy.
  • the invention relates to a protective device for a hand tool for a rotating, preferably disc-shaped tool, in particular for an angle grinder, with at least one basic body unit, wherein the basic body unit at least one semi-disc-shaped base body and a base body wall which is arranged transversely to a main extension surface of the base body and the Radially surrounds tool, and having an intended for deformation absorption element, wherein the basic body unit comprises at least two sub-areas that have specifically different absorption properties, wherein the absorption element has a profiling for receiving kinetic energy, wherein the base body wall has the profiling.
  • the absorption element has at least one partial area with a sawtooth and / or a wave profile, the sawtooth and / or the wave profile extending in the circumferential direction along an outer side of the main body wall, which faces on a side of the main body wall facing away from the tool is arranged, and extends along an inner side of the main body wall, which is arranged on a tool-facing side of the base body wall.
  • a “basic body unit” is to be understood here as meaning, in particular, a unit which has at least one base body means, such as a base body, a base body wall, a base body collar, a base body neck and / or a base body element.
  • radial wall is to be understood as the part of the basic body unit which is arranged radially and extends at least along a partial area of the circumference of the tool.
  • the radial wall may preferably be formed by the main body wall.
  • an "absorption element” should be understood to mean, in particular, an element which has a specific shaping intended for deformation and / or can be deformed particularly well owing to its material and / or construction properties and / or energy, in particular kinetic energy, such as for example, rotational energy, translational energy, Heat, etc., of parts that come into contact with the absorption element record.
  • the absorption element can absorb energy by elastic and / or plastic deformability.
  • the main body unit is preferably arranged around a disc-shaped and rotating tool of a hand tool, such as an angle grinder, so that by the absorption element in operation of the power tool sparks and / or material particles and / or in particular rotating and / or with great force to the outside hurled fragments of a In operation zerborstenen tool, such as a grinding wheel, a cutting disc, etc., can be absorbed advantageously.
  • a hand tool such as an angle grinder
  • a "profiling” is to be understood here in particular as a shaping configuration such as a slot, a perforation, a corrugated or a sawtooth profile, a concentric profile, a variation of the wall thickness, a multi-walled and / or another design that appears appropriate to a person skilled in the art ,
  • the arrangement of the profiling, an efficient energy absorption can be achieved in particular by an easy-to-implement deformation.
  • the basic body unit particularly advantageously comprises at least two partial areas which have specifically differing absorption properties.
  • the protective device can be structurally designed simply for different load situations. If, for example, a first partial region is arranged in an edge and / or edge region of the protective device and if it is designed with the higher absorption characteristic or with a slight deformability than a second partial region which is located in a position facing away from the edge, the protective device can be targeted a most likely impact location of a fragment of the bursting tool.
  • the absorption element has at least one partial area with a sawtooth and / or a wave profile.
  • the sawtooth and / or the wave profile is particularly advantageously arranged in the base body wall and extends in the circumferential direction along the base body wall.
  • the profile can be embossed and / or punched executed.
  • it can advantageously be achieved that there is a contact time and / or reduces a contact distance that the tool fragment has with the protection device in the event of bursting and forceful movement out of the protection device. The repeated impact reduces the residual energy which is released to the attachment of the protective device to the machine tool.
  • a comminution and / or a crumbling of the fragment can take place by a wandering through the profile or a repeated impact of the fragment on the absorption element, in particular in the circumferential direction one behind the other and pointing in the direction of the tool troughs.
  • the profiling represents at least one recess arranged in at least one subregion of at least one main body means of the main body unit.
  • a "recess” is to be understood as meaning, in particular, an opening extending through an entire extension, preferably a thickness, of an object, such as a hole and / or a slot.
  • the profiling and / or the recess is arranged in two and preferably in three base body means, such as the base body, the base body wall and / or the body trunk. It can also be provided more than one recess extending in the circumferential direction over the Base body means extend. Furthermore, the recesses may differ in their shapes.
  • the recess represents a longitudinal opening which is arranged along a direction of the basic body unit pointing essentially radially outward.
  • a “longitudinal opening” is to be understood here in particular as meaning an opening, in particular a slot, which has a longitudinal extent of at least twice as long, preferably 10 times as long and particularly advantageously 30 times as long as its extent in its width.
  • the term "radially outward-pointing direction” should be understood to mean, in particular, a direction that runs along a line that extends from an imaginary center of the main body neck to a partial circle circumference of the main body.
  • the longitudinal opening can be arranged at an angle of up to 10 ° in an intersection between the longitudinal opening and the line deviating from the line.
  • more than one longitudinal opening may be provided, which may have different radial lengths, and these differently long longitudinal openings may be arranged alternately to one another and / or in groups, preferably in the circumferential direction.
  • the basic body unit has at least two walls with different wall thicknesses.
  • a first wall here preferably represents a wall of the base body wall and a second wall preferably represents a wall of the base body and / or the basic body collar.
  • the base body means preferably represents the base body wall.
  • the different wall thicknesses here preferably define elements or subregions of the sawtooth and / or wave profile.
  • the profile has different partial regions, such as a thick flank facing a direction of rotation of the tool, and / or a thin flank extending in the radial direction of the main body and / or pointing in the direction of rotation of the tool, and / or a punched opening , which differ in their absorption properties.
  • the inventive design can be ensured that the absorption element or a related profile weakness is located on a trajectory of a tool fragment and that little Motion energy of the impacting on the absorption element tool fragment is converted into an unwanted and dangerous movement of the protective device and / or the basic body unit.
  • the absorption element has an at least substantially concentric profile.
  • a "concentric profile” is to be understood here in particular as a shaping that extends at least partially in the circumferential direction around a center, such as, for example, the main body neck.
  • the profile is preferably arranged in the base body. Due to the design according to the invention structurally simple, a spring element can be integrated into the protection device, which absorbs energy in strikes of fragments in a main body wall inner wall.
  • the absorption element is designed to be multi-walled, whereby structurally simply more wall material is present, which can be deformed and thus absorbs more energy.
  • multi-walled in particular a version with more than one wall to be understood.
  • at least two walls are provided, between which a cavity is formed.
  • a filling component is introduced between an inner and an outer wall of the absorption element.
  • a “filling component” is to be understood here in particular as a component of an energy-absorbing material, such as a foam and / or an elastomer.
  • foam has a sound-absorbing effect, which additionally advantageous noises of the power tool can be reduced.
  • other energy-absorbing filling components that appear appropriate to the person skilled in the art are also conceivable.
  • the protective device has a multi-part body neck, which structurally simple, an absorption element can be installed in the main body neck.
  • rubber-elastic component is to be understood here in particular as a component that absorbs energy under a reversible deformation and free again, wherein the deformation is preferably greater than 2% of a component thickness.
  • the rubber-elastic component may be cohesively arranged on the main body neck.
  • a hand tool 12a formed by an angle grinder is shown in a top view.
  • the angle grinder comprises a housing 60a and a main handle 62a integrated in the housing 60a.
  • a tool holder 66a is arranged on which a protective device 10a, namely a protective hood with a main body unit 16a is arranged.
  • the main body unit 16a serves to protect an operator of the handheld power tool 12a from sparks and material particles and to protect against broken pieces of the tool 14a, which may result from damage such as bursting of the tool 14a during operation of the handheld power tool 12a.
  • the protective device 10a or the basic body unit 16a is composed of a plurality of main body means 24a and comprises a half-disk-shaped main body 68a and a main body wall 70a, which is transverse to a main extension surface 72a of the base body 68a is arranged and radially surrounds a tool 14a.
  • the main body wall 70a is arranged on a side 74a facing the tool 14a.
  • the basic body unit 16a has a main body collar 76a which is arranged transversely to an extension surface 78a of the main body wall 70a on a side 80a of the main body wall 70a facing away from the main body 68a, parallel to the main body 68a and extends radially inwardly from the main body wall 70a. Furthermore, a main body neck 56a is arranged on the main body 68a, which extends transversely to a main extension surface 72a of the main body 68a and is aligned parallel to the main body wall 70a. In this case, the main body neck 56a is arranged on a side 82a facing away from the tool 14a.
  • the semicircular base body unit 16a has an absorption element 18a provided for deformation, which is arranged in a base body means 24a designed as the base body 68a. Further, the steel main body unit 16a covers an angular range of 180 ° of the tool 14a (FIG. FIG. 1 ). In principle, however, other materials which appear appropriate to the person skilled in the art and which have sufficient strength and hardness, such as, for example, a carbon fiber construction, are conceivable for forming the basic body unit 16a.
  • the absorption element 18a has a profiling 20a for receiving kinetic energy.
  • the profiling 20a constitutes a recess 26a in the form of a longitudinal opening 28a, which is arranged along a direction 30a of the main body unit 16a pointing in a substantially radially outward direction.
  • the recess 26a or the longitudinal opening 28a is arranged in a partial region 22a of the main body means 24a or of the main body 68a of the main body unit 16a, which extends from an edge 84a which extends in the radial direction of the main body 68a along a circumferential direction 86a to approximately one Third extends over the main extension surface 72a of the body 68a.
  • the partial region 22a has further longitudinal openings 28a, which extend in the circumferential direction 86a one behind the other over the main body 68a.
  • the longitudinal openings 28a are arranged radially around a center, such as the main body neck 56a.
  • the longitudinal openings 28a extend radially outward from an imaginary center 88a of the main body neck 56a to different points 90a of the pitch circle circumference 92a of the main body 68a, the points 90a being arranged one after the other in the circumferential direction 86a.
  • the recesses 26a and the longitudinal openings 28a differ with respect to their shapes and / or their length.
  • a longitudinal opening 94a which is arranged in a region of the partial region 22a pointing to the edge 84a, is approximately half as long as a longitudinal opening 96a, which is placed in the circumferential direction 86a immediately after the longitudinal opening 94a.
  • Longitudinal openings 94a and longitudinal openings 96a are arranged in the circumferential direction 86a alternately to one another.
  • the longitudinal opening 94a has an approximately 30 times as long longitudinal extent 98a opposite to an extension in its width 100a.
  • FIG. 2 shows alternative embodiments of the protective device 10a for a better understanding of the invention, wherein FIGS. 5 to 7 Protection devices 10d-f according to the invention are shown.
  • FIGS. 5 to 7 Protection devices 10d-f according to the invention are shown.
  • the same components, features and functions are always numbered the same.
  • the reference numerals of the embodiments the letters a to i and k are added. The following description is essentially limited to the differences from the embodiment in the FIG. 2 , wherein with respect to the same components, features and functions on the description of the embodiment in the FIG. 2 can be referenced.
  • FIG. 3 shows a protective device 10b that is alternative to the protective device 10a, having a main body unit 16b that has a main body 68b, a main body wall 70b, a main body collar 76b and a main body neck 56b for a better understanding of the invention.
  • the semicircular base body unit 16b has an absorption element 18b provided for deformation, which is arranged in the base body 68b.
  • the absorption element 18b has a profiling 20b in the form of a recess 26b or a longitudinal opening 28b, which is arranged along a direction 30b of the main body unit 16b pointing essentially radially outward.
  • the longitudinal openings 28b are arranged in a partial region 22b, which extend in a circumferential direction 86b in succession over the main body 68b.
  • the longitudinal openings 28b are arranged radially around a center, such as the main body neck 56b.
  • the partial region 22b of the basic body unit 16b comprises two partial regions 32b and 34b which have specifically differing absorption properties.
  • the partial region 32b is arranged in a region of the partial region 22b facing the edge 84a and the partial region 34b in a region facing away from the edge 84b or in a region which is located substantially centrally between the edge 84b and a second radially extending edge 102b ,
  • a longitudinal opening 94b, which is arranged in the partial area 32b, has a longer longitudinal extent 98b than a longitudinal opening 104b arranged in the partial area 34b.
  • the longitudinal openings 28b in an intermediate region 106b between the longitudinal opening 94b and the longitudinal opening 104b shorten in their longitudinal extent 98b in Direction of the circumferential direction 86b, starting from the edge 84b toward an axis of symmetry 108b of the body 68b, gradually by about 10% to 50% of a length of each longitudinal opening 28b previously arranged in the circumferential direction 86b.
  • the absorption element 18b is arranged in two base body means 24b, namely the base body 68b and the base body wall 70b designed as a radial wall 40b, or the longitudinal openings 28b extend over a plurality of base body means 24b.
  • the absorption element 18b it would also be conceivable for the absorption element 18b to be arranged in two other and / or in at least three base body means 24b, such as the base body 68b, the base body wall 70b and / or the base body collar 76b.
  • FIG. 4 For better understanding of the invention, an alternative protective device 10c to the protective device 10a is shown, comprising a main body unit 16c, which has a main body 68c, a main body wall 70c, a main body collar 76c and a main body neck 56c.
  • the semicircular base body unit 16c has two walls 36c, 38c with different wall thicknesses, wherein one of the walls 36c, 38c represents a radial wall 40c.
  • the radial wall 40c is designed as a base body wall 70c and forms the absorption element 18c provided for deformation.
  • the radial wall 40c or the absorption element 18c has a thickness 110c which is thinner than a thickness 112c of the wall 38c, which represents a wall of the main body 68c and / or of the main body collar 76c.
  • FIG. 5 shows a protective device according to the invention 10d in a plan view of a parallel to a base body not shown here section through a main body wall 70d of a basic body unit 16d.
  • the main body wall 70d which constitutes a radial wall 40d
  • an absorption element 18d which has a partial region 42d with a sawtooth profile 44d
  • the sawtooth profile 44d extends in the circumferential direction 86d along an outer side 114d of the main body wall 70d, which is arranged on a side facing away from a tool, not shown here side of the main body wall 70d and the main body 76d and 76d extends along an inner side 116d, which at one Tool facing side is arranged.
  • flank region 118d has a thickness 122d formed by a wall thickness which is thicker than a thickness 124d of the flank region 120d.
  • a major extension of the flank region 118d extends substantially along the circumferential direction 86d and extends in a rotational direction of the tool, not shown here, which runs parallel to the circumferential direction 86d.
  • the sawtooth profile 44d is introduced into the outside 114d and the inside 116d of the main body wall by means of embossing, but it is also conceivable to make another insertion that would appear meaningful to a person skilled in the art.
  • FIG. 6 shows an alternative protection device according to the invention 10e in a plan view of a parallel to a base body not shown here section through a main body wall 70e of a basic body unit 16e.
  • the main body wall 70e which is a radial wall 40e
  • an absorption element 18e which has a partial region 42e with a sawtooth profile 44e
  • the sawtooth profile 44e extends in the circumferential direction 86e along an outer side 114e and along an inner side 116e of the main body wall 70e and is introduced by means of a punching process into the outer side 114e of the main body wall.
  • flank region 118e represents a lamination 126e which is flanked in the circumferential direction 86e by two flank regions 120e in the form of two punched openings 128e.
  • the blade 126e extends substantially along the circumferential direction 86e and extends in a rotational direction of the tool.
  • the punch opening 128e spaces two blades in the radial direction 30e, with the blades 126e abutting each other at their end portions.
  • FIG. 7 shows an alternative protection device according to the invention 10f in a plan view of a parallel to a basic body not shown here section through a main body wall 70f of a basic body unit 16f.
  • the main body wall 70f which is a radial wall 40f
  • an absorbent member 18f having a portion 42f with a corrugated profile 46f is disposed in the main body wall 70f.
  • the corrugation profile 46f extends in the peripheral direction 86f along an outer side 114f and along an inner side 116f of the main body wall 70f.
  • the main body wall 70f has different wall thicknesses.
  • the flank area 118f has a thickness 122f that is thicker than a thickness 124f of the flank area 120f.
  • the major extensions of the flank regions 118f, 120f extend substantially along the circumferential direction 86f and ers stretches in a direction of rotation of the tool not shown here.
  • the flank region 118f points from a wave crest 132f to a waveguide 134f previously arranged in the circumferential direction 86f, and the flank region 120f points from a wave valley 134f to a wave crest 132f following in the circumferential direction 86f.
  • the wall thickness of the entire wave profile 46f can also be of the same thickness.
  • an alternative protective device 10g to the protective device 10a is shown with a main body unit 16g having a main body 68g, a main body wall 70g, a main body collar 76g and a main body neck 56g.
  • the semicircular base body unit 16g has an absorption element 18g provided for deformation, which is arranged in the base body 68g and a concentric profile 48g, which extends in the circumferential direction 86g around the main body neck 56g.
  • the concentric profile 48g is an additional damping or spring element and is composed of three wave crests 136g and valleys 138g, which are arranged in the radial direction 30g from the main body neck 56g to the pitch circle circumference 92g in succession.
  • FIG. 9 For better understanding of the invention, an alternative protective device 10h to the protective device 10a is shown with a main body unit 16h having a main body 68h, a main body wall 70h, a main body collar 76h and a main body neck 56h.
  • the main body wall 70h and / or the main body collar 76h constitutes part of an absorption element 18h, which has a multi-walled construction.
  • the main body wall 70h forms an outer wall 52h of the absorption element 18h, which is arranged substantially parallel to an inner wall 50h of the absorption element 18h.
  • the inner wall 50h is arranged transversely to a main extension surface 72h of the main body 68a and constitutes a wall extending in the circumferential direction 86h around a portion of a tool, not shown, facing the latter.
  • a thickness 140h of the inner wall 50h is thinner than a thickness 142h of the outer wall 52h .
  • the inner wall 50h and the outer wall 52h include in the radial direction 30h a cavity 144h in which a filling component 54h in the form of a foam is introduced.
  • a foam defines a solid containing gaseous inclusions, such as gaseous bubbles in particular. In principle, an embodiment without filling component would also be conceivable.
  • an alternative protective device 10i to the protective device 10a is provided with a basic body unit 16i which has a main body 68i, a Main body wall 70i, a base body 76i, a main body neck 56i and a base member 146i has shown.
  • the semicircular design Basic body unit 16i a multi-part main body neck 56i, consisting of an outer ring 148i, an inner ring 150i and the base member 146i, on.
  • the body member 146i is configured as a rubber elastic member 58i disposed on the body neck 56i between the outer 148i and the inner ring 150i.
  • the inner ring 150i is frictionally arranged on a flange, not shown, of the angle grinder.
  • FIG. 11 shows for better understanding of the invention, an alternative to the protective device 10a construction of a protective device 10k with a base member 146k and a clamping device 152k.
  • a circular segment-shaped rubber-elastic component 58k is arranged between an outer ring 148k and an inner ring 150k of a main body neck 56k of the main body unit 16k.
  • the inner ring 150k has a clamping device 152k with a clamping region 154k, by means of which the protective device 10k is frictionally secured via a clamping element 156k, such as a screw, to a flange, not shown, of an angle grinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Vibration Dampers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (2)

  1. Dispositif de protection pour une machine-outil à main (12a-k) pour un outil (14a-k) rotatif, de préférence en forme de disque, en particulier pour une meuleuse d'angle, comprenant au moins une unité de corps de base (16a-k), l'unité de corps de base (16a-k) comprenant au moins un corps de base (68a-c ; 68g-i) en forme de demi-disque et une paroi de corps de base (70a-i) qui est disposée transversalement par rapport à une surface d'étendue principale du corps de base (68a-c ; 68g-i) et qui entoure radialement l'outil (14a-k), ainsi qu'un élément d'absorption (18a-k) prévu en vue de la déformation, l'unité (16a-k) de corps de base comportant au moins deux régions partielles (32a, 34a ; 32b, 34b ; 32c, 34c ; 32d, 34d ; 32e, 34e; 32f, 34f ; 32g, 34g ; 32h, 34h ; 32i, 34i ; 32k ; 34k) qui présentent des propriétés d'absorption qui diffèrent de manière spécifique, l'élément d'absorption (18a-h) comprenant un profilage (20a-h) en vue d'une absorption d'énergie cinétique, caractérisé en ce que la paroi de corps de base (70a-i) comprend le profilage (20a-h), l'élément d'absorption (18d-f) comprenant au moins une région partielle (42d-f) possédant un profil en dents de scie (44d ; 44e) et/ou un profil ondulé (46f), le profil en dents de scie (44d ; 44e) et/ou le profil ondulé (46f) s'étendant le long d'un côté extérieur (114d-f) de la paroi de corps de base (70d-f) dans la direction périphérique (86d-f), lequel côté extérieur est situé d'un côté de la paroi de corps de base (70d-f) opposé à l'outil, et s'étendant le long d'un côté intérieur (116d-f) de la paroi de corps de base (70d-f), lequel côté intérieur est situé d'un côté de la paroi de corps de base (70d-f) faisant face à l'outil, et comprenant au moins une paroi radiale (40d-f) de l'unité de corps de base (16d-f) qui forme au moins en partie l'élément d'absorption (18d-f).
  2. Dispositif de protection selon la revendication 1, caractérisé par au moins un moyen de corps de base (24d-f) de l'unité de corps de base (16d-f), lequel moyen de corps de base possède différentes épaisseurs de paroi.
EP08786495A 2007-09-27 2008-07-28 Dispositif de protection Not-in-force EP2205397B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007046311A DE102007046311A1 (de) 2007-09-27 2007-09-27 Schutzvorrichtung
PCT/EP2008/059854 WO2009043615A1 (fr) 2007-09-27 2008-07-28 Dispositif de protection

Publications (2)

Publication Number Publication Date
EP2205397A1 EP2205397A1 (fr) 2010-07-14
EP2205397B1 true EP2205397B1 (fr) 2012-03-14

Family

ID=39800524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08786495A Not-in-force EP2205397B1 (fr) 2007-09-27 2008-07-28 Dispositif de protection

Country Status (6)

Country Link
EP (1) EP2205397B1 (fr)
CN (1) CN101808779B (fr)
AT (1) ATE549126T1 (fr)
DE (1) DE102007046311A1 (fr)
RU (1) RU2492040C2 (fr)
WO (1) WO2009043615A1 (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US10357868B2 (en) 2015-09-10 2019-07-23 Makita Corporation Grinder, cover, and lock nut
US10478943B2 (en) 2015-09-10 2019-11-19 Makita Corporation Grinder, cover and cover set
US10556319B2 (en) 2015-09-10 2020-02-11 Makita Corporation Grinder and cover
WO2026082593A1 (fr) * 2024-10-15 2026-04-23 Adolf Würth GmbH & Co. KG Couvercle et outil de coupe ou de meulage

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Publication number Priority date Publication date Assignee Title
CN113263409B (zh) * 2021-05-19 2022-03-08 浙江机电职业技术学院 一种可调角度的角磨机及其使用方法

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WO2009015929A1 (fr) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Dispositif de protection

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DE2756362A1 (de) * 1977-12-17 1979-06-21 Bosch Gmbh Robert Schutzhaube, insbesondere fuer ein elektro-handwerkzeug
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SU973326A1 (ru) * 1980-06-17 1982-11-15 Опытно-Конструкторское Бюро Киевского Научно-Исследовательского Института Гигиены Труда И Профессиональных Заболеваний Защитный кожух
US6464573B1 (en) * 2000-06-30 2002-10-15 Porter-Cable Corporation Guard attachment system with knurled clamp ring
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US3808749A (en) * 1971-07-06 1974-05-07 Tos Hostivar Np Safety guards for grinding wheels
WO2009015929A1 (fr) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Dispositif de protection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10357868B2 (en) 2015-09-10 2019-07-23 Makita Corporation Grinder, cover, and lock nut
US10478943B2 (en) 2015-09-10 2019-11-19 Makita Corporation Grinder, cover and cover set
US10556319B2 (en) 2015-09-10 2020-02-11 Makita Corporation Grinder and cover
WO2026082593A1 (fr) * 2024-10-15 2026-04-23 Adolf Würth GmbH & Co. KG Couvercle et outil de coupe ou de meulage

Also Published As

Publication number Publication date
CN101808779B (zh) 2013-08-07
CN101808779A (zh) 2010-08-18
WO2009043615A1 (fr) 2009-04-09
EP2205397A1 (fr) 2010-07-14
RU2010116342A (ru) 2011-11-10
RU2492040C2 (ru) 2013-09-10
ATE549126T1 (de) 2012-03-15
DE102007046311A1 (de) 2009-04-02

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