EP4084927A1 - Dispositif adaptateur pour capot protecteur et système de machine-outil pourvu de ce dispositif adaptateur pour capot protecteur - Google Patents

Dispositif adaptateur pour capot protecteur et système de machine-outil pourvu de ce dispositif adaptateur pour capot protecteur

Info

Publication number
EP4084927A1
EP4084927A1 EP20815774.3A EP20815774A EP4084927A1 EP 4084927 A1 EP4084927 A1 EP 4084927A1 EP 20815774 A EP20815774 A EP 20815774A EP 4084927 A1 EP4084927 A1 EP 4084927A1
Authority
EP
European Patent Office
Prior art keywords
protective hood
contact
fastening part
contact part
plane
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.)
Pending
Application number
EP20815774.3A
Other languages
German (de)
English (en)
Inventor
Thomas Schomisch
Cornelius Boeck
Daniel BARTH
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 EP4084927A1 publication Critical patent/EP4084927A1/fr
Pending legal-status Critical Current

Links

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
    • 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
    • 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

Definitions

  • a protective hood adapter device for mounting on a machine tool with at least one contact part for contact with a protective hood of the machine tool and with at least one fastening part which is movable in at least one plane of movement on the contact part has already been proposed.
  • the invention is based on a protective hood adapter device to a Mon days on a, in particular hand-held, machine tool with at least one contact part for application to a protective cover of the machine tool and with at least one fastening part which is movably mounted on the contact part in at least one plane of movement.
  • the fastening part is provided to clamp the contact part on the protective hood by means of a force that is at least substantially perpendicular to the plane of movement.
  • Provided is to be understood in particular as specifically programmed, specially designed and / or specially equipped.
  • the fact that an object is provided for a specific function should be understood in particular to mean that the object can perform this specific function in at least one application and / or operating state is fulfilled and / or carried out.
  • Essentially perpendicular is to be understood as meaning, in particular, an alignment of a direction of a straight line or a plane, in particular a direction of the force, relative to a reference direction, another straight line or another plane, in particular the plane of movement, the direction , the straight line or the plane and the reference direction, the other straight line or the other plane, particularly viewed in a projection plane, include an angle of 90 ° and the angle has a maximum deviation of in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
  • the application part and the fastening part move relative to one another when there is a movement, in particular at least partially within the movement plane.
  • the fastening part preferably encloses the contact part, viewed along the plane of movement, at least partially, in particular together with the protective hood.
  • the fastening part preferably encloses the contact part in an edge region of the contact part.
  • the contact part is intended to be applied to the machine tool, in particular the protective hood, in a direction that is at least substantially perpendicular to the plane of movement.
  • the fastening part is preferably provided for applying at least one force to the contact part which is at least substantially perpendicular to the plane of movement and in particular faces the protective hood.
  • the fastening part is provided to be at least partially pushed onto the protective hood in order to brace the contact part with the protective hood, the fastening part in particular at least partially engaging around the contact part.
  • the fastening part is provided to at least partially enclose the protective hood together with the contact part, viewed along the plane of movement.
  • the fastening part is preferably in a tensioned state, with in particular the contact part being clamped to the protective hood by means of the fastening part, at least partially, in particular flat, on the contact part.
  • the protective hood adapter device is preferably provided for, by mounting on a protective hood designed as a roughing protective hood, of a machine tool designed as an angle grinder, together with the protective hood, a separating protective hood, in particular a separating protective hood from Type C according to the standard EN 62841-2-3.
  • the protective hood adapter device is provided to protect a user from flying sparks and / or from severed projectiles during a cutting process with the machine tool designed as an angle grinder.
  • the guard adapter device is provided for use with machine tools other than an angle grinder.
  • the protective hood adapter device preferably comprises at least one bearing unit for movably mounting the fastening part on the contact part.
  • the bearing unit preferably has at least two bearing elements, in particular one bearing element being arranged on the fastening part and another bearing element being arranged on the contact part.
  • the La gerelement is formed in one piece with the fastening part.
  • the other bearing element is designed in one piece with the contact part.
  • One-piece is to be understood in particular as materially bonded, such as by a welding process and / or adhesive process, etc., and particularly advantageously molded, such as by production from a cast and / or by production in a single or multi-component injection molding process.
  • the fastening part preferably has at least one actuating element which is provided to be actuated by a user in order to release the fastening part and / or the contact part from the protective hood.
  • the actuating element preferably has at least one actuating surface that is at least substantially perpendicular to the plane of movement.
  • the actuating element is arranged on a side of the fastening part facing away from the bearing element.
  • the machine tool in particular a tool holder of the machine tool, preferably has an axis of rotation around which a tool in particular can be driven by means of the machine tool.
  • the protective hood preferably encloses the axis of rotation and / or the tool holder at least partially.
  • the protective hood adapter device is at least partially arranged around the axis of rotation and / or the tool holder, in particular at least substantially in a state attached to the machine tool or the protective hood perpendicular to the axis of rotation extending plane.
  • the plane of movement is preferably at least essentially borrowed arranged perpendicular to the axis of rotation.
  • the contact part and / or the fastening part preferably have / has at least one main plane of extent which is / is at least substantially parallel to the plane of movement and / or at least substantially perpendicular to the axis of rotation.
  • a “main extension plane” of a component, in particular the fastening part and / or the contact part, should be understood to mean, in particular, a plane that is parallel to a largest side surface of a smallest imaginary cuboid that just completely surrounds the component, and in particular through the center point of the cuboid.
  • Essentially parallel is to be understood as meaning, in particular, an alignment of a straight line, a plane or a direction, in particular the main extension plane, relative to another straight line, another plane or a reference direction, in particular the plane of movement, where the straight line that Plane or the direction with respect to the other straight line, the other plane or the reference direction, especially viewed in a projection plane, has a deviation of in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
  • the protective hood adapter device is preferably provided to be attached to the machine tool, in particular the protective hood, in a direction that is at least substantially perpendicular to the axis of rotation or at least substantially parallel to the plane of movement.
  • the fastening part is preferably provided to fasten the contact part and the protective hood to one another or to press them against one another with at least one bracing force, with the bracing force in particular being oriented at least substantially perpendicular to the plane of movement.
  • the inventive design of the protective hood adapter device allows an advantageously simple and quick installation on the machine tool, in particular the protective hood. It can be a Monta ge of the guard adapter device to form a separating guard for the machine tool advantageously be made possible independently of dismantling the machine tool or the guard, in particular since the guard adapter device can be mounted directly on the guard of the machine tool. Furthermore, it is proposed that the fastening part is rotatable or pivotable on the contact part about a pivot axis that is in particular at least substantially perpendicular to the plane of movement. An advantageously simple and quick fastening of the contact part can be achieved.
  • the fastening part is preferably provided to be moved around the pivot axis relative to the contact part in order to fasten the contact part to the protective hood.
  • the bearing element or the other bearing element of the bearing unit is designed as a pin, a bolt and / or an extension, the other bearing element or the bearing element being designed as a recess, a passage or the like.
  • the pivot axis is particularly preferably arranged at an end region of the fastening part.
  • the end region of the fastening part preferably extends from a plane which is at least substantially perpendicular to the plane of movement and which includes the pivot axis, in a direction facing away from the plane, with at most 10%, preferably at most 8% and particularly preferably at most 5%, one entire volume, in particular special mass volume, of the fastening part is arranged on a side of the plane predetermined by the direction.
  • the pivot axis is preferably arranged at least substantially parallel to the axis of rotation. In particular, the pivot axis, viewed along the axis of rotation, is arranged at a distance from the protective hood or the tool holder.
  • the fastening part comprises at least two bracing surfaces, which are arranged on two facing inner sides of the fastening part.
  • the bracing surfaces are preferably oriented obliquely or at least essentially parallel to the plane of movement.
  • the bracing surfaces are each arranged on a side of the fastening part facing the contact part.
  • a bracing surface of the two Clamping surfaces provided to attach the protective hood adapter device, in particular the contact part, to the contact part applied to who the.
  • bracing surface of the bracing surfaces is preferably provided to be placed on the protective hood in order to fasten the protective hood adapter device, in particular the contact part.
  • the bracing surfaces are preferably arranged on the sides of the fastening part facing the plane of movement.
  • the bracing surface is arranged on a side of the fastening part facing a motor or a base body of the machine tool.
  • the other bracing surface is preferably arranged on a side of the fastening part which is at least largely remote from the motor or the base body of the machine tool.
  • the protective hood adapter device comprises at least one latching element for fixing the fastening part to the application part, which extends from the fastening part or the application part in a direction that is at least substantially perpendicular to the plane of movement.
  • An advantageously secure attachment of the part to be placed on the protective hood can be achieved.
  • the ratchet element (s) are / is arranged on the fastening part and / or the contact part.
  • the locking element arranged on the fastening part is preferably arranged within or on the bracing surface of the fastening part.
  • the locking element arranged on the fastening part at least partially limits the bracing surface.
  • the latching element arranged on the contact part is preferably arranged on a side of the contact part facing the fastening part.
  • the latching element arranged on the contact part is preferably arranged on a side of the contact part facing away from the machine tool, in particular the protective hood.
  • the latching element (s) have / has a wedge-shaped basic shape in at least one section plane that is at least substantially perpendicular to the plane of movement.
  • the latching element (s) extend at least substantially perpendicular to the plane of movement or, viewed along the pivot axis, along a curved or straight path on the fastening part or on the contact part.
  • the latching element (s) preferably grasp / grips to fasten the contact part by means of the fastening part to a recess and / or a surface of the contact part or the fastening part. It is conceivable that the locking element arranged on the fastening part interacts with the locking element arranged on the contact part to fasten the contact part by means of the fastening part, the catch elements in particular attacking one another.
  • the latching element (s) are / is preferably arranged at a distance from the pivot axis. Particularly preferably, the latching element (s) are / is arranged on a further end region of the fastening part facing away from the end region of the fastening part.
  • the latching element (s) preferably extend at least partially along a circumferential direction around the axis of rotation on the fastening part or the contact part. It is particularly preferred that the latching element (s) be formed in one piece with the fastening part or the contact part.
  • the protective hood adapter device comprises at least one guide unit which is arranged at a distance from the pivot axis and is provided to guide the fastening part in a movement relative to the contact part on the contact part.
  • An advantageously quick and error-free movement of the fastening part relative to the application part can be achieved, in particular regardless of any tilting of the fastening part.
  • An advantageously high level of robustness and longevity of the protective hood adapter device can be made possible, in particular since the fastening part can advantageously be prevented from rotating relative to the contact part.
  • the guide unit preferably comprises at least one guide element which is arranged on the fastening part or the contact part, in particular is formed in one piece with the fastening part or the contact part.
  • the guide unit comprises at least one guide recess which is delimited in particular by the contact part or the fastening part.
  • the guide unit is designed as an elongated hole guide.
  • the guide element is designed as an extension, as a bolt, as a pin or the like.
  • the guide unit is preferably provided to guide the fastening part in one movement along a guide path on the contact part.
  • the guide section is particularly preferably oriented at least substantially parallel to the plane of movement and / or at least substantially perpendicular to the pivot axis.
  • the guide route is at least partially, in particular at least for the most part partly, curved or straight.
  • a minimum distance between the pivot axis and the guide unit, in particular the guide element and / or the guide recess, is preferably at least 20 mm, preferably at least 30 mm, preferably at least 40 mm and particularly preferably at least 45 mm, with the minimum distance from the pivot axis and the guide unit, in particular the guide element and / or the guide recess, is aligned at least substantially paral lel to the plane of movement and / or at least substantially perpendicular to the pivot axis.
  • the bearing recess extends over an entire thickness of the fastening part, in particular from an inside of the fastening part facing the contact part to an outside of the fastening part facing away from the contact part.
  • the guide element is preferably arranged within the guide recess. Before given, the guide element in at least one operating state rests at least partially on a guide surface of the contact part or of the fastening part that delimits the guide recess.
  • the fastening part and / or the contact part have at least one holding element which is provided to hold the fastening part by means of a holding force in precisely one unrestrained position relative to the contact part. It can advantageously be achieved an abrasion between the fastening part and the application part in an untensioned state of the application part, in particular since a relative movement of the application part and the fastening part can advantageously be prevented. An advantageously high level of user comfort can be made possible, in particular since a disturbing noise caused by the attachment part or the contact part striking when the fastening part moves relative to the contact part, for example during transport or when changing the protective hood adapter, can be advantageously prevented.
  • a locking of a position of the fastening part relative to the contact part can advantageously be made possible, in particular in an open or untensioned position and in a closed or braced position.
  • the holding force is preferably aligned at least partially along the guide path of the guide unit.
  • the holding element is arranged on the fastening part or the contact part, in particular in one piece with the fastening part or the contact part.
  • the holding element is preferably designed in one piece with the guide unit, in particular the guide element or the guide recess. But it is also conceivable that the Garele element is arranged at a distance from the guide unit.
  • the holding element is provided to generate the holding force when the fastening part moves out of the unrestrained position by the interaction of the guide element and the guide recess.
  • the holding element is designed as an extension arranged on the fastening part, in particular formed in one piece with the fastening part, which delimits the guide recess, in particular the guide element being subjected to the holding force via the holding element when the fastening part is moved out of the unrestrained position .
  • the holding element preferably forms a tapering of the guide recess along the guide path.
  • the protective hood adapter device comprises at least one limiting unit, which is provided to allow a movement of the contact part and the fastening part relative to one another about the pivot axis to a maximum angle of at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferred to be limited to a maximum of 15 °.
  • An advantageously compact design can be achieved, in particular since an advantageously low maximum volume limited by the fastening part and the contact part can be made possible.
  • An advantageously quick assembly of the protective hood adapter device can be made possible, in particular since an advantageously short, maximum distance to be covered by the fastening part relative to the contact part for bracing the contact part with the protective cover can be achieved.
  • the delimitation unit is preferably designed in one piece with the guide unit.
  • the guide recess is provided to limit the movement of the application part and of the fastening part relative to one another about the pivot axis via a cooperation with the guide element.
  • the guide section preferably spans a maximum angular range around the pivot axis of in particular at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferably at most 15 °, and in particular at least 7 °, preferably at least 10 ° and particularly preferably at least 14 °, on.
  • the fastening part is preferably provided to brace the contact part with the protective hood at an angle relative to the contact part of 0 ° or to fasten it to the machine tool, in particular the protective hood.
  • the fastening part is preferably provided at an angle relative to the contact part of at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferably at most 15 °, by means of the holding element in the precisely one unrestrained position relative to the contact part become.
  • the angle of the fastening part relative to the contact part in the precisely one untensioned position is in particular at least 7 °, preferably at least 10 ° and particularly preferably at least 14 °.
  • the contact part has at least one contact surface for contact with the protective hood, in particular when the contact part is braced or fastened with or on the protective hood, with a maximum distance of the at least substantially perpendicular to the plane of movement Contact surface and an outer surface of the contact part and / or the fastening part that is at least substantially parallel to the plane of movement is at most 7 mm, preferably at most 6 mm and particularly preferably at most 5 mm.
  • An advantageously compact protective hood adapter device can be made possible by whoever.
  • An advantageously compact separating protection hood for the machine tool can be made possible.
  • An advantageously small increase in volume of the machine tool can be achieved when the guard adapter device is attached.
  • the maximum distance between the contact surface, which is at least substantially perpendicular to the plane of movement, and the outer surface of the contact part and / or the fastening part, which is at least substantially parallel to the plane of movement, is at least 2 mm, preferably at least 3 mm and particularly preferably at least 4 mm.
  • the contact surface is preferably oriented obliquely or at least substantially parallel to the plane of movement.
  • the contact surface is preferably on a side facing the machine tool, in particular the tool holder of the application part and / or the fastening part arranged.
  • the contact surface is provided to be applied to an end of the protective hood facing the contact part and at least substantially parallel to the axis of rotation or to the central axis.
  • the maximum distance between the contact surface and the outer surface of the contact part and / or the fastening part, which is at least substantially parallel to the plane of movement, is oriented at least substantially parallel to the pivot axis.
  • the outer surface of the contact part and / or the fastening part with at least one surface of the contact part and / or the fastening part facing the machine tool spans a maximum height of the protective hood adapter device, which in particular is at least substantially perpendicular to the plane of movement and / or at least substantially is aligned parallel to the pivot axis and / or the axis of rotation.
  • the contact part has at least one outer contour which is designed at least substantially perpendicular to the plane of movement to be in the shape of a circular arc around an imaginary center point, the contact part being arranged at least substantially perpendicular to the plane of movement at a distance from the center point.
  • the central axis preferably comprises the axis of rotation.
  • the fastening part In a tensioned state of the contact part, the fastening part preferably rests with the protective hood at least partially on the outer contour of the contact part.
  • a minimum distance of the contact part from the imaginary center point or the central axis, viewed at least substantially perpendicular to the plane of movement is in particular more than 10 mm, preferably more than 20 mm, preferably more than 30 mm.
  • the minimum distance between the contact part and the imaginary center is important or the central axis at least substantially parallel to the plane of movement.
  • the contact part preferably comprises at least one outer wall, which is formed at least substantially perpendicular to the plane of movement and / or viewed along the central axis and / or the pivot axis as a segment of a circle.
  • the outer wall preferably extends at least essentially parallel to the plane of movement.
  • the outer wall is preferably delimited by the outer contour of the contact part, in particular at least substantially perpendicular to the plane of movement and / or viewed along the central axis and / or the pivot axis.
  • the minimum distance between the contact part and the imaginary center point or the central axis extends from the outer wall, in particular one side of the outer wall, to the imaginary center point or the central axis.
  • the guide path, a main axis of extension of the latching element / latching element and / or the plane of movement are / is oriented at least substantially perpendicular to the central axis.
  • a “main axis of extension” of a component, in particular the locking element / locking element, should be understood to mean in particular an axis which runs parallel to a longest edge of a smallest geometric cuboid that just completely surrounds the component.
  • the contact part have at least one, in particular the aforementioned, contact surface for contact with the protective hood and at least one receiving recess for protecting the fastening part during operation of the machine tool, the receiving recess on an outer side of the contact facing away from the contact surface is partly arranged.
  • Abrasion and / or damage to the fastening part during operation of the machine tool can advantageously be prevented, in particular if the fastening part is made from a softer material than the contact part.
  • An advantageously high stability and robustness can be made possible.
  • An advantageously high level of protection of a fastening mechanism of the protective hood adapter device can be achieved, in particular since the fastening part can be protected from deformation and / or warping.
  • the receiving recess is preferably delimited by the outer wall of the contact part. It is conceivable that the locking element arranged on the contact part at least partially forms the receiving recess limited.
  • the fastening part particularly preferably has an outer surface which is arranged in particular on a side of the fastening part facing away from the receiving recess.
  • a minimum distance between the outer surface of the fastening part and the outer surface of the contact part, which is at least substantially parallel to the pivot axis and / or to the central axis, is particularly preferably at most 2 mm, preferably at most 1 mm and particularly preferably at most 0.5 mm, with in particular the Au touch Formation the contact part has a larger minimum distance to the plane of movement and / or the machine tool, in particular the tool holder, as the outer surface of the fastening part.
  • the outer surface of the fastening part and the outer surface of the contact part extend at least for the most part within a common plane, which is preferably aligned at least substantially parallel to the plane of movement.
  • At least the contact part is at least largely, in particular at least substantially completely, made of a metal.
  • An advantageously high level of stability and robustness can be made possible. Damage to the protective hood adapter device by flying sparks and / or by separated projectiles can advantageously be prevented.
  • An advantageously high heat resistance of the protective hood adapter device can be achieved, in particular with respect to a protective hood adapter device, in particular a contact part, made of plastic or the like certain property, in particular of being formed from the metal, are understood, in particular at least 90%, preferably at least 95% and particularly preferably at least 98% of a total volume and / or a total mass of the component having the property.
  • the fastening part is at least largely made of a plastic, in particular a hard plastic. It is conceivable that the fastening part in a region of the bearing unit and / or the guide unit is at least partially formed from a material different from a plastic, in particular from a metal.
  • a machine tool system with at least one machine tool, which has at least one protective hood, and with at least one protective hood adapter device according to the invention is proposed.
  • the contact part preferably encloses the protective hood, in particular at least substantially perpendicular to the plane of movement and / or viewed along the axis of rotation or the pivot axis, at least for the most part.
  • the application part preferably has at least one application element which is provided to be applied to the protective hood and to secure the application part against rotation relative to the protective hood about the central axis or the axis of rotation.
  • the contact part has exactly two contact elements, which are arranged along a circumferential direction around the axis of rotation or the central axis at two ends of the contact part.
  • the two contact elements preferably encompass the protective hood at least partially, in particular in a direction that is at least substantially perpendicular to the axis of rotation or to the central axis.
  • the design of the machine tool system according to the invention enables an advantageously simple and quick assembly of the machine tool system, in particular the guard adapter device.
  • An assembly of the guard adapter device to form a separating guard for the machine tool can advantageously be made possible independently of dismantling the machine tool or the guard, in particular since the guard adapter device can be mounted directly on the guard of the machine tool.
  • the protective hood adapter device according to the invention and / or the machine tool system according to the invention should / should not be limited to the application and embodiment described above.
  • the protective hood adapter device according to the invention and / or the machine tool system according to the invention can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned here in order to fulfill a mode of operation described here.
  • values lying within the stated limits should also be deemed disclosed and can be used in any way.
  • Fig. 1 is a perspective view of a work machine machine system according to the invention with a protective hood adapter device according to the invention in an assembled state
  • Fig. 2 is a perspective view of the machine tool system according to the invention with the protective hood adapter device according to the invention in a disassembled state
  • Fig. 3 is a plan view of the protective hood adapter device according to the invention.
  • Fig. 4 is a plan view of the machine tool system according to the invention in a region of the protective hood according to the invention benadaptervorraum in the assembled state
  • Fig. 5 is a plan view of the machine tool system according to the invention in the area of the protective hood adapter device according to the invention with a fastening part of the protective hood adapter device in an untensioned position,
  • FIG. 6 shows a side view of the machine tool according to the invention in a region of the protective hood adapter device according to the invention
  • Fig. 7 is a side sectional view of the machine tool system according to the invention in a connection area of the protective hood adapter device according to the invention with a Protective hood of a machine tool of the machine tool system.
  • a machine tool system 10 which comprises a machine tool 12 and a guard adapter device 14.
  • the machine tool 12 is designed as a hand-held machine tool.
  • the machine tool 12 is designed as an angle grinder.
  • the machine tool 12 comprises a protective hood 16 which is arranged at least partially around a tool holder 18 of the machine tool 12.
  • the machine tool 12 comprises an axis of rotation 20 about which a tool 22 can be driven by the machine tool 12 via the tool holder 18.
  • the tool 22 is designed as a grinding and cutting wheel.
  • other configurations of the tool 22 are also conceivable.
  • the protective hood 16 is attached to the tool holder 18 and encloses the tool holder 18 and the tool 22 viewed along the axis of rotation 20 at least partially.
  • the protective hood 16 has an edge region 24 which extends at least substantially parallel to the axis of rotation 20.
  • the protective hood 16, in particular the edge area 24, extends at least essentially perpendicular to the axis of rotation 20 over an entire height of the tool 22 and the tool holder 18, which in particular is aligned at least essentially parallel to the axis of rotation 20.
  • the guard adapter device 14 is provided for assembly on the machine tool 12.
  • the protective hood adapter device 14 is shown in FIG. 1 in a state mounted on the machine tool 12, in particular the protective hood 16.
  • the protective hood adapter device 14 is provided to be attached to the machine tool 12, in particular the protective hood 16.
  • the protective hood adapter device 14 comprises a contact part 26 for contact with a protective hood 16 of the machine tool 12 and a fastening part 28 which, in at least one plane of movement 30 is movably mounted on the contact part 26.
  • the fastening part 28 is provided for the purpose of tensioning the contact part 26 on the protective hood 16 by means of a force that is at least substantially perpendicular to the plane of movement 30.
  • the fastening part 28 at least partially encloses the application part 26, in particular in the assembled state, in an edge region 32 of the application part 26.
  • the fastening part 28 is provided for the purpose of applying at least one force to the contact part 26 which is at least substantially perpendicular to the plane of movement 30 and in particular faces the protective hood 16.
  • the fastening part 28 is provided to be at least partially pushed onto the protective hood 16 to brace the contact part 26 with the protective hood 16, the fastening part 28 in particular at least partially engaging around the contact part 26.
  • the fastening part 28 is provided to at least partially enclose the protective hood 16 together with the contact part 26 when viewed along the movement plane 30.
  • the fastening part 28 is in a clamped state, in particular the contact part 26 being clamped ver by means of the fastening part 28 with the protective hood 16, at least partially, in particular over a large area, against the contact part 26.
  • the protective hood 16 of the machine tool 12 is designed as a roughing protective hood, in particular as a roughing protective hood of type B according to standard EN 62841-2-3.
  • the protective hood adapter device 14 is provided to form a protective hood, in particular a type C separating hood in accordance with standard EN 62841-2-3, by mounting it on the protective hood 16, which is designed as a roughing protective hood, together with the protective hood 16.
  • the protective hood adapter device 14 is provided to protect a user from flying sparks and / or from separated projectiles during a separation process of the machine tool 12.
  • the fastening part 28 has an actuating element 34 which is provided to be operated by a user to release the fastening part 28 and the contact part 26 from the protective hood 16.
  • the actuating element 34 is provided to move the fastening part 28 relative to the contact part 26 from the clamped state to an unstressed state (see also FIG. 2).
  • the actuating element 34 has an actuating surface 36 that is at least substantially perpendicular to the plane of movement 30.
  • the actuating element 34 is provided for the purpose of applying a force effect on the actuating surface 36 by a user to move the fastening part 28 relative to the contact part 26 within the movement plane 30.
  • the actuating surface 36 is at least partially designed as a curved surface which extends at least partially at least substantially perpendicular to the plane of movement 30.
  • the protective hood 16 encloses the axis of rotation 20 and / or the tool holder 18 at least partially.
  • the protective hood adapter device 14 is in a state fastened to the machine tool 12 or the protective hood 16, which is shown in particular in FIG. 1, at least partially around the axis of rotation 20 and / or the tool holder 18, in particular in an at least substantially perpendicular manner to the axis of rotation 20 extending plane, in particular the plane of movement 30, considered.
  • the plane of movement 30 is arranged at least substantially perpendicular to the axis of rotation 20.
  • the contact part 26 and the fastening part 28 each have at least one main extension plane 38, which are aligned at least essentially parallel to the movement plane 30 and at least essentially perpendicular to the axis of rotation 20.
  • the fastening part 28 is provided to fasten the contact part 26 and the protective hood 16 to one another or to press them against one another with at least one bracing force, the bracing force in particular being aligned at least substantially perpendicular to the plane of movement 30.
  • the application part 26 is at least essentially made entirely of a metal.
  • the fastening part 28 is formed at least essentially completely from a plastic, in particular from a hard plastic. However, other configurations of the contact part 26 and / or the fastening part 28 are also conceivable.
  • the contact part 26 comprises at least one damping element, which is provided to dampen the development of noise during machining of a workpiece by means of the tool 22, the damping element in particular being formed from a material different from a metal.
  • the damping element is not shown in the figures.
  • the protective hood 16 is arranged adjustably on the machine tool 12, wherein in particular the one position of the protective hood 16 about the axis of rotation 20 can be changed.
  • the protective hood adapter device 14 is in the assembled state together with the Protective hood 16 movable.
  • the protective hood adapter device 14 is intended to be fastened to the machine tool 12 only via the protective hood 16 by means of the fastening part 28.
  • the machine tool system 10 is shown in a dismantled state, the protective hood adapter device 14 being arranged at a distance from the machine tool 12, in particular the protective hood 16.
  • the fastening part 28 is shown in an untensioned state.
  • the fastening part 28 is mounted on the contact part 26 so as to be rotatable or pivotable about a pivot axis 40 that is at least substantially perpendicular to the plane of movement 30.
  • the pivot axis 40 is arranged at an end area 42 of the fastening part 28, which extends from a plane 44, which is at least substantially perpendicular to the plane of movement 30 and which includes the pivot axis 40, in a direction facing away from the plane 44, with a maximum of 10%, preferably at most 8% and particularly preferably at most 5% of a total volume, in particular mass volume, of the fastening part 28 is arranged on a side of the plane 44 which is provided by the direction.
  • the pivot axis 40 is arranged at least substantially parallel to the axis of rotation 20.
  • the pivot axis 40 viewed along the axis of rotation 20, is arranged at a distance from the protective hood 16 or the tool holder 18.
  • the protective hood adapter device 14 comprises a bearing unit 46 for movable mounting of the fastening part 28 on the contact part 26.
  • the bearing unit 46 has two bearing elements 48, 50 which are designed to correspond to one another.
  • the bearing element 50 is designed as a pin which is arranged at least substantially perpendicular to the plane of movement 30 or at least substantially parallel to the pivot axis 40 and / or to the axis of rotation 20 on the contact part 26.
  • Another bearing element 50 of the two bearing elements 48, 50 is designed as a run de bearing recess which is bounded by the fastening part 28 be.
  • the fastening part 28 is rotatably or pivotably mounted on the contact part 26 on the bearing pin about the pivot axis 40 via the other bearing element 50 formed as a bearing recess.
  • the bearing element 48 is with the fastening part 28 in a region of the other bearing element 50 positively and / or cohesively connected, in particular pressed.
  • the La gerelement 48 is rotatably mounted within a recess 52 of the contact part 26.
  • the bearing element 48 is provided to be moved within the recess 52 together with the fastening part 28 when the fastening part 28 moves relative to the application part 26 about the pivot axis 40.
  • the bearing element 48 extends from the contact part 26 in two directions facing away from one another, which in particular are aligned at least substantially perpendicular to the plane of movement 30, and is connected to the fastening part 28 in both directions.
  • the fastening part 28 encompasses the contact part 26 along the plane of movement 30 viewed in a region of the bearing unit 46, in particular the bearing elements 48,
  • the bearing unit 46 is preferably provided to limit or at least substantially prevent a movement of the fastening part 28 relative to the contact part 26 along the pivot axis 40.
  • the loading actuating element 34 is arranged on a side of the fastening part 28 facing away from the bearing element 48 or the end region 42 delimiting the bearing unit.
  • the bearing element 48 is preferably made of a plastic, in particular hard plastic. However, other configurations of the bearing unit 46, in particular the bearing elements 48, 50, are also conceivable.
  • the protective hood adapter device 14, in particular the contact part 26, is provided to be applied to the machine tool 12, in particular the protective hood 16, via an assembly direction 54 that is at least substantially perpendicular to the plane of movement 30.
  • the fastening part 28 is intended, after the contact part 26 has been placed on the protective hood 16 in a fastening direction 56 that is at least substantially parallel to the plane of movement 30, to brace the contact part 26 on the protective hood 16 around the pivot axis 40 on the contact part 26 to be moved.
  • the contact part 26 has an outer contour 57 which, viewed at least essentially perpendicular to the plane of movement 30, is formed in the shape of a circular arc around an imaginary center point 58 or a central axis 60 of the contact part 26 (see FIG. 3), the contact part 26 at least essentially perpendicular to the Movement plane 30 viewed at a distance from the central point 58 or the central axis 60 is arranged.
  • the central axis 60 preferably runs through the imaginary center point 58 and is at least substantially parallel to the pivot axis 40 and / or to the axis of rotation 20.
  • the central axis 60 preferably comprises the axis of rotation 20.
  • the central axis 60 is oriented at least substantially perpendicular to the plane of movement 30.
  • the contact part 26 comprises an outer wall 62, which is formed at least substantially perpendicular to the plane of movement 30 and / or viewed along the central axis 60 and / or the pivot axis 40 in the shape of a segment of a circle.
  • the outer wall 62 extends at least substantially parallel to the plane of movement 30.
  • the outer wall 62 is delimited by the outer contour 57 of the contact part 26, in particular at least substantially perpendicular to the plane of movement 30 and / or viewed along the central axis 60 and / or the pivot axis 40 .
  • the contact part 26 is formed from a jacket area 64, a transition area 66, two contact elements 68, the outer wall 62 and a recess area 70.
  • the jacket region 64 comprises a wall 72 which is designed in the shape of a circular arc around the imaginary center point 58 or the central axis 60.
  • the wall 72 of the jacket region 64 extends over an angular range 74 (see Figure 3) of in particular at least 90 °, preferably at least 120 °, preferably at least 180 ° and particularly preferably at least 180 °, around the imaginary center point 58 or the central axis 60
  • the wall 72 of the jacket region 64 extends over an angular region 74 of in particular a maximum of 220 °, preferably a maximum of 200 ° and particularly preferably a maximum of 180 °, around the imaginary center point 58 or the central axis 60.
  • the wall 72 of the jacket region particularly preferably extends 64 over an angular range 74 around the imaginary center point 58 or the central axis 60 of at least substantially 180 °.
  • the transition area 66 delimits the jacket area 64 at an edge of the wall 72 of the jacket area 64 that is at least substantially perpendicular to the central axis 60 or the axis of rotation 20 and / or at least substantially parallel to the plane of movement 30, which is in particular on one of the machine tools 12, in particular the protective hood 16, facing away Side of the jacket region 64 is arranged.
  • the transition area 66 comprises a wall 76 bent by at least essentially 90 °, which extends in particular by an entire angular area 78 (see FIG. 3) around the imaginary center point 58 or the central axis 60, within which the wall 72 of the jacket area 64 is formed , extends.
  • the recess area 70 delimits the transition area 66 and is in particular arranged at a distance from the jacket area 64.
  • the recess region 70 comprises a wall 80 which delimits a recess 82 which, in particular, is at least substantially perpendicular to the plane of movement 30.
  • the recess area 70 in particular the wall 80 of the recess area 70 and / or the recess 82, extends over an angular area 84 (see Figure 3) of in particular at least 60 °, preferably at least 90 °, preferably at least 110 ° and particularly preferably at least 115 ° , around the imaginary center point 58 or the central axis 60, in particular along an edge of the transition region 66.
  • the recess region 70 in particular the wall 80 of the recess region 70 and / or the recess 82, extends over an angular region 84 of in particular at most 180 °, preferably at most 150 ° and particularly preferably at most 120 °, around the imaginary center point 58 or the central axis 60, in particular along an edge of the transition region 66.
  • the recess region 70 in particular the wall 80 of the recess region 70 and / or the recess 82, particularly preferably extends , over an angle area 84 around the imaginary center pu nkt 58 or the central axis 60 of at least substantially 120 °.
  • the two contact elements 68 are designed as extensions and are arranged on the wall 72 of the jacket region 64.
  • the two contact elements 68 are each arranged on an edge 86 of the wall 72 of the jacket region 64 that is at least substantially perpendicular to the plane of movement 30, in particular on two ends of the wall 72 of the jacket region that are formed along a circumferential direction around the central axis 60 or the axis of rotation 20 64.
  • the two contact elements 68 have, in particular at least substantially perpendicular to the plane of movement 30 (see FIG. 3), a shape that is curved in particular by at least 60 °, preferably at least 80 ° and particularly preferably at least 90 °.
  • the two contact elements 68 are provided for the purpose of releasing the contact part 26 against movement in a state mounted on the protective hood 16.
  • the two contact elements 68 are formed at least for the most part, in particular at least substantially completely, over an entire height of the wall 72 of the jacket region 64, which in particular extends at least substantially perpendicular to the plane of movement 30.
  • the outer wall 62 is arranged on the recess region 70 in a direction facing the imaginary center point 58 or the central axis 60.
  • the outer wall 62 delimits the recess area 70.
  • the outer wall 62 is preferably aligned at least substantially perpendicular to the wall 72 of the jacket area 64.
  • the outer wall 62 is preferably formed in the shape of a segment of a circle relative to the outer contour 57 of the contact part 26 or relative to the wall 72 of the jacket region 64.
  • the outer wall 62 comprises an edge 88 which delimits the contact part 26 in the direction of the imaginary center point 58 or the central axis 60.
  • the edge 88 of the outer wall 62 is at least substantially parallel to an imaginary straight line through the edges 86 of the wall 72 of the jacket region 64, which are at least substantially perpendicular to the plane of movement 30, in particular the two along a circumferential direction around the central axis 60 or the axis of rotation 20 considers formed ends of the wall 72 of the jacket area 64.
  • the contact part 26, in particular the wall 72 of the jacket area 64, the wall 76 of the transition area 66, the two contact elements 68, the outer wall 62 and / or the wall 80 of the recess area 70, has a maximum wall thickness 90 of in particular at least 0.5 mm, preferably at least 1 mm, preferably at least 1.5 mm and particularly preferably at least 2 mm.
  • the contact part 26, in particular the wall 72 of the jacket region 64, the wall 76 of the transition region 66, the two contact elements 68, the outer wall 62 and / or the wall 80 of the recess region 70 has a maximum wall thickness 90 of in particular no more than 5 mm, preferably at most 4 mm and particularly preferably at most 3 mm.
  • the jacket region 64 is provided to be placed around the protective hood 16 when viewed from the axis of rotation 20 and / or the central axis 60.
  • the jacket area 64 is in particular provided to secure the contact part 26 against movement at least substantially perpendicular to the axis of rotation 20 and / or to the central axis 60 on the protective hood.
  • the recess area 70 is provided to hold the fastening part 28 on the contact part 26, in particular by bracing.
  • the fastening part 28 is made up of a storage area 92, an actuation area 94, two contact areas 96, 97 and two bracing areas 98, 99 ge forms.
  • the fastening part 28 engages around the contact part 26 within the bearing area 92, viewed along the plane of movement 30, at least for the most part (see also FIG. 3).
  • the pivot axis 40 runs through the bearing area 92.
  • the bearing unit 46 in particular the other bearing element 50 designed as a bearing recess, is at least partially arranged within the bearing area 92.
  • the fastening part 28 is placed on the contact part 26, in particular the jacket region 64, via the two contact areas 96, 97.
  • a contact area 96 of the two contact areas 96, 97 delimits the bearing area 92, in particular viewed along a circumferential direction about the central axis 60 or the axis of rotation 20.
  • the contact area 96 comprises a wall 100 which, in an assembled state or a clamped state, is at least partially attached to the contact part 26, in particular the wall 72 of the casing area 64, the wall 76 of the transition area 66 and a wall 102 of the protective hood 16 to be created.
  • the wall 102 of the protective hood 16, against which the wall 100 of the contact area 96 is placed, is preferably arranged on a side of the protective cover 16 facing away from the contact part 26, in particular the transition region 66.
  • the contact area 96, in particular the wall 100 of the contact area 96 is formed over an angular area 104 (see FIG.
  • the contact area 96 in particular the wall 100 of the contact area 96, is formed over an angular area 104 of in particular a maximum of 90 °, preferably a maximum of 70 ° and particularly preferably a maximum of 60 °, about the central axis 60 or the axis of rotation 20.
  • the contact area 96, in particular the wall 100 of the contact area 96 is particularly preferably formed over an angular area 104 around the central axis 60 or the imaginary center point 58 of at least substantially 47 °.
  • the two bracing areas 98, 99 are arranged on the contact area 96.
  • the two bracing areas 98, 99 are arranged at a distance from one another and are connected to one another via the two contact areas 96, 97.
  • the two bracing areas 98, 99 each include one Wall 106, 108, which are aligned at least substantially parallel to the plane of movement 30.
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99, are aligned or arranged at least substantially parallel to one another, in particular the contact part 26 in a braced state between the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99 is arranged.
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the bracing areas 98, 99, are provided to brace the contact part 26 on the protective hood 16 in an assembled state or a braced state.
  • a bracing area 98 of the two bracing areas 98, 99, in particular the wall 106 of the bracing area 98, is provided to be placed on the contact part 26, in particular the outer wall 62 or the recess area 70.
  • Another bracing area 99 of the two bracing areas 98, 99, in particular the wall 108 of the other bracing area 99, is provided to be placed on one, in particular the aforementioned, wall 102 of the protective hood 16.
  • the other bracing area 99 in FIG. 3 is covered by the contact part 26 or the bracing area 98 and is not shown.
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99, are at least substantially perpendicular to the plane of movement 30 at a distance from the outer contour 57 of the contact part 26, the transition area 66, the jacket area 64 and / or the Recess area 70 arranged (see Figure 3).
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99, have a maximum length 110 (see FIG. 3) of in particular at least 80 mm, preferably at least 100 mm and at least substantially parallel to the plane of movement 30 particularly preferably at least 120 mm.
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99 have at least essentially parallel to the plane of movement 30 a maximum length 110 of in particular at most 300 mm, preferably at most 250 mm and particularly preferably at most 200 mm .
  • the two bracing areas 98, 99, in particular the walls 106, 108 of the two bracing areas 98, 99, at least substantially parallel to the plane of movement 30, have a maximum length 110 of at least substantially 103 mm.
  • the walls 106, 108 of the two Clamping areas 98, 99, viewed at least substantially perpendicular to the plane of movement 30, have an at least substantially rectangular basic shape in an area of the outer wall 62 of the contact part 26.
  • Another contact area 97 of the two contact areas 96, 97 is arranged on the two bracing areas 98, 99, in particular at an end facing away from the contact area 96.
  • the further contact area 97 is arranged at a distance from the contact area 96 and in particular is connected to the contact area 96 via the two bracing areas 98, 99.
  • the further contact area 97 comprises a wall 112, which is provided, in an assembled state or a tensioned state, at least partially on the contact part 26, in particular the wall 72 of the casing area 64, the wall 76 of the transition area 66 and the wall 100 of the protective hood 16 to be applied to the.
  • the further contact area 97 in particular the wall 112 of the further contact area 97, is over a maximum angular range 114 (see Figure 3) of in particular at least 10 °, preferably at least 15 ° and particularly preferably at least 20 °, about the central axis 60 or the imaginary Center 58 formed.
  • the further contact area 97, in particular the wall 112 of the further contact area 97 is formed over a maximum angular area 114 of in particular at most 90 °, preferably at most 60 ° and particularly preferably at most 30 °, about the central axis 60 or the axis of rotation 20.
  • the further contact area 97 in particular the wall 112 of the further contact area 97, is particularly preferably formed over a maximum angular area 114 around the central axis 60 or the imaginary center point 58 of at least substantially 18 °.
  • the actuating area 94 is arranged at an end of the further contact area 97 or of the fastening part 28 facing away from the contact area 96 and / or the bearing area 92.
  • the actuation area 94 preferably delimits the further contact area 97 at one end of the fastening part 28 (see FIG. 3).
  • the actuation element 34 is arranged within the actuation area 94.
  • the actuation area 94 is preferably formed by the actuation element 34.
  • the actuating surface 36 and / or an outer surface 188 of the actuating element 34 have / has an angle 192 of at least substantially 135 ° in a transition from the contact area 97 thereof to the actuating area 94 relative to an outer surface 190 of the wall 112 of the other contact area 97 on (see Figure 3).
  • the fastening part 28, in particular the bearing area 92, the actuation area 94, in particular the actuation element 34, the walls 100, 112 of the two contact areas 96, 97, and / or the walls 106, 108 of the two bracing areas 98, 99, have a maximum wall thickness 116 of in particular at least 0.5 mm, preferably at least 1 mm, preferably at least 1.5 mm and particularly preferably at least 2 mm.
  • the fastening part 28, in particular the bearing area 92, the actuation area 94, in particular the actuation element 34, the walls 100, 112 of the two contact areas 96, 97, and / or the walls 106, 108 of the two bracing areas 98, 99, have a maximum wall thickness 116 in particular at most 5 mm, preferably at most 4 mm and particularly preferably at most 3 mm.
  • the fastening part 28 is arranged within the bearing area 92 on the attachment part 26, in particular independently of a position of the attachment part 28 relative to the attachment part 26 about the pivot axis 40.
  • the actuation area 94 is provided for the user to grip when the attachment part 28 is moved.
  • the fastening part 28 rests against the application part 26 via the application areas 96, 97 in the tensioned state or in a state of the application part 26 attached to the protective hood.
  • the fastening part 28 braces the contact part 26 with the protective hood 16 via the bracing areas 98, 99 in a direction that is at least substantially perpendicular to the plane of movement 30.
  • the fastening part 28 comprises two bracing surfaces 118, 120, which are arranged on two facing inner sides of the fastening part 28.
  • the bracing surfaces 118, 120 are each arranged on an inner side of the walls 106, 108 of the two bracing areas 98, 99, in particular facing the plane of movement 30 (see FIG. 7).
  • Each of the walls 106, 108 of the two bracing areas 98, 99 each comprises one of the two bracing surfaces 118, 120.
  • the two bracing surfaces 118, 120 are aligned at least substantially parallel to the plane of movement 30.
  • the two bracing surfaces 118, 120 are each arranged on a side of the fastening part 28 facing the contact part 26, in particular in a braced state.
  • a bracing surface 118 of the two bracing surfaces 118, 120 is provided for the purpose of fastening the protective hood adapter device 14, in particular the contact part 26, to be applied to the contact part 26.
  • Another bracing surface 120 of the two bracing surfaces 118, 120 is provided for fastening the Protective hood adapter device 14, in particular the contact part 26, to be placed on the protective hood 16, in particular the wall 102 of the protective hood 16.
  • the bracing surface 118 is arranged on a side of the fastening part 28 facing a motor or a base body of the machine tool 12.
  • the other bracing surface 120 is arranged on a side of the fastening part 28 that is at least largely remote from the motor or the base body of the machine tool 12.
  • the protective hood adapter device 14 is shown individually in a top view, in particular at least substantially perpendicular to the plane of movement 30.
  • the fastening part 28, in particular in a state shown in FIG. 3, is arranged in a braced position on the contact part 26.
  • the protective hood adapter device 14 comprises a guide unit 122 which is arranged at a distance from the pivot axis 40 and is provided to guide the fastening part 28 in a movement relative to the contact part 26 on the contact part 26.
  • the guide unit 122 comprises a guide element 124 which is formed in one piece with the contact part 26.
  • the guide unit 122 comprises a guide recess 126 which is delimited by the fastening part 28.
  • the guide unit 122 is formed out as a slot guide.
  • the guide element 124 is designed as an extension which extends from an outer side of the contact part 26 facing away from the movement plane 30 in a direction that is at least substantially perpendicular to the movement plane 30.
  • the guide element 124 has a round, in particular special circular, cross-sectional area.
  • the guide recess 126 is delimited by a guide surface 128 of the fastening part 28.
  • the guide surface 128, viewed at least substantially perpendicular to the plane of movement 30, has a contour which is at least substantially in the shape of a race track.
  • the guide unit 122 is provided to guide the fastening part 28 in a movement along a guide path 130 on the contact part 26.
  • the guide path 130 is at least essentially aligned parallel to the plane of movement 30 and / or at least essentially perpendicular to the pivot axis 40.
  • the guide path 130 is at least for the most part rectilinear.
  • a minimum distance 132 between the pivot axis 40 and the guide unit 122, in particular the guide elements 124 and / or the guide recess 126 is in particular at least 20 mm, preferably at least 30 mm, preferably at least 40 mm and particularly preferably at least 45 mm, with the minimum distance 132 between the pivot axis 40 and the guide unit 122, in particular the guide element 124 and / or the guide recess 126 is oriented at least substantially parallel to the plane of movement 30 and / or at least substantially perpendicular to the pivot axis 40.
  • the guide recess 126 extends over an entire thickness of the fastening part 28, in particular from an inside of the fastening part 28 facing the contact part 26 to an outside of the fastening part 28 facing away from the contact part 26.
  • the guide element 124 is arranged within the guide recess 126.
  • the guide element 124 extends over an entire thickness of the guide recess 126.
  • the guide element 124 in particular an end of the guide element 124 oriented at least substantially parallel to the plane of movement 30, is designed flush with an outer side of the fastening part 28.
  • the guide element 124 rests at least partially on the guide surface 128 of the contact part 26 or of the fastening part 28, which delimits the guide recess 126.
  • the guide path 130 is aligned at least substantially perpendicular to the central axis 60.
  • the fastening part 28 has a holding element 134, which is provided to hold the fastening part 28 in exactly one non-tensioned position relative to the contact part 26 by means of a holding force.
  • the holding force is preferably aligned at least partially along the guide path 130 of the guide unit 122.
  • the holding element 134 is formed in one piece with the fastening part 28.
  • the holding element 134 is designed in one piece with the guide unit 122, in particular the guide recess 126.
  • the holding element 134 is designed as an extension within the guide recess 126, which is formed in particular by the guide surface 128 of the fastening part 28.
  • the holding element 134 is arranged separately or at a distance from the guide unit 122.
  • the holding element 134 is for this purpose seen, when the fastening part 28 is moved out of the unrestrained position (see FIG. 2), the holding force is generated by the interaction of the guide element 124 and the guide recess 126. When the fastening part 28 moves out of the unrestrained position, the guide element 124 is acted upon by the holding force via the holding element 134.
  • the holding element 134 preferably forms a tapering of the guide recess 126 along the guide section 130.
  • the fastening part 28 has two markings 136, 137 which are arranged on the guide unit.
  • the markings 136, 137 are designed as arrows to indicate a position of the fastening part 28 relative to the contact part 26.
  • the markings 136, 137 each point to a position of the guide element 124 formed in one piece with the contact part 26 within the guide recess 126.
  • other configurations of the markings 136, 137 are also conceivable, in particular with a shape deviating from an arrow.
  • a marking 136 of the markings 136, 137 indicates a position of the fastening part 28 braced with the contact part 26, which is shown in particular in FIG.
  • the fastening part 28 being pushed onto the contact part 26, in particular up to a stop, and with in particular the guide element 124 rests on one end of the guide recess 126.
  • Another marking 137 of the markings 136, 137 shows the fastening part 28 in the unrestrained position (see FIG. 2 or FIG. 5), with the fastening part 28 in particular being acted upon by the holding force via the holding element 134 and with the guide element 124 in particular at another end the guide recess 126 rests.
  • the fastening part 28 also comprises an outer surface 138 which is arranged on a side of the fastening part 28 facing away from the machine tool 12.
  • a minimum distance 140 of the contact part 26 to the imaginary center point 58 or the central axis 60 is at least substantially perpendicular to the plane of movement 30, in particular more than 10 mm, preferably more than 20 mm, preferably pulls more than 30 mm.
  • the minimum distance 140 of the contact part 26 to the imaginary center point 58 or the central axis 60 is at least substantially 33 mm.
  • the minimum distance 140 of the contact part 26 to the imaginary center point 58 or the central axis 60 is at least substantially parallel to the plane of movement 30 aligned.
  • the minimum distance 140 of the contact part 26 to the imaginary center point 58 or the central axis 60 extends from the outer wall 62, in particular a side of the outer wall 62 that is at least substantially perpendicular to the plane of movement 30, in particular the edge 88 of the outer wall 62, to the imaginary one Center 58 or the central axis 60.
  • a minimum distance 142 of the transition region 66 of the contact part 26, in particular the wall 76 of the transition region 66 to the central axis 60 or the axis of rotation 20 is in particular at least 50 mm, preferably at least 60 mm and particularly preferably at least 63 mm.
  • the minimum distance 142 of the transition area 66 of the contact part 26, in particular the wall 76 of the transition area 66 to the central axis 60 or the axis of rotation 20 is in particular at most 120 mm, preferably at most 100 mm and particularly preferably at most 80 mm.
  • the minimum distance 142 of the transition region 66 of the contact part 26, in particular the wall 76 of the transition region 66, to the central axis 60 or the axis of rotation 20 is at least substantially 63.5 mm.
  • a maximum distance 144 of the contact part 26, in particular the outer contour 57 or the wall 72 of the jacket area 64, and the imaginary center 58 or the central axis 60 is in particular at least 50 mm, preferably at least 60 mm and particularly preferably at least 70 mm.
  • the maximum distance 144 of the contact part 26, in particular the outer contour 57 or the wall 72 of the jacket region 64, and the imaginary center point 58 or the central axis 60 is at least substantially 72.5 mm.
  • a maximum outer diameter 146 of the contact part 26, in particular the outer contour 57 or the wall 72 of the jacket region 64 is at least substantially 145 mm.
  • the machine tool 12 shown in the figures, in particular the tool 22, is designed with a grinding wheel diameter 148 of 125 mm.
  • the machine tool 12 in particular the tool 22, is also conceivable, in particular with a grinding wheel diameter 148 different from 125 mm.
  • the guard adapter device 14 shown in the figures is preferred for mounting on a machine tool 12 with a grinding wheel diameter 148 by 125 mm provided.
  • Other configurations of the guard adapter device 14 are also conceivable, in particular for mounting on a machine tool 12 with a grinding wheel diameter 148 different from 125 mm.
  • the machine tool system 10 is shown in an assembled state viewed along the axis of rotation 20 or the central axis 60.
  • the guard adapter device 14, in particular the fastening part 28, is shown in an untensioned state.
  • the fastening part 28 is held in the unrestrained state by means of the guide element 124 via the Hal teelement 134 with the holding force in exactly one unrestrained position relative to the contact part 26.
  • the protective hood adapter device 14 comprises a limiting unit 150, which is provided for a movement of the application part 26 and the fastening part 28 relative to one another about the pivot axis 40 to a maximum angle 152 of at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferably at most 15 °.
  • the delimitation unit 150 is formed in one piece with the guide unit 122.
  • the guide recess 126 is provided to limit the movement of the application part 26 and the fastening part 28 relative to one another about the pivot axis 40 by interacting with the guide element 124.
  • the guide path 130 spans a maximum angular range 154 around the pivot axis 40 of in particular at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferably at most 15 °, and in particular at least 7 °, preferably at least 10 ° and particularly preferably at least 14 °, on.
  • the guide section 130 particularly preferably spans a maximum angular range 154 of at least substantially 15 ° around the pivot axis 40.
  • the guide element 124 is shaped relative to one another around the pivot axis 40 to limit the maximum angle 152 of the contact part 26 and the fastening part 28. closely to the guide surface 128 of the fastening part 28 delimiting the guide recess 126.
  • the fastening part 28 is provided to brace the contact part 26 with the protective hood 16 at an angle relative to the contact part 26 of 0 ° or to fasten it to the machine tool 12, in particular the protective hood 16 (see FIG. 4).
  • the fastening part 28 is provided at an angle 152 relative to the contact part 26 of at most 60 °, preferably at most 40 °, preferably at most 30 ° and particularly preferably at most 15 ° and very particularly preferably at least substantially 15 °, by means of the holding element 134 to be held in exactly one untensioned position relative to the contact part 26.
  • the angle 152 of the fastening part 28 in the untensioned state relative to a position of the fastening part 28 in the clamped state, shown in particular in FIG. 4, is at least substantially 15 °.
  • other configurations of the delimitation unit 150 are also conceivable, in particular separate from the guide unit 122.
  • FIG. 6 shows a side view of the machine tool system 10 in a region of the protective hood 16 and the protective hood adapter device 14.
  • the contact elements 68 encompass the protective hood 16 at ends of the protective hood 16 or the contact part 26 that are formed when viewed along a circumferential direction around the central axis 60 or the axis of rotation 20.
  • the contact part 26 has a contact surface 156 for contact with the protective hood 16, in particular when the contact part 26 is braced or attached to the protective hood 16, with a maximum distance 158 of the Contact surface 156 and an outer surface 138, 160 of the contact part 26 and / or the fastening part 28, which is at least substantially parallel to the plane of movement 30, is at most 7 mm, preferably at most 6 mm and particularly preferably at most 5 mm.
  • the maximum distance 158 of the contact surface 156 which is at least substantially perpendicular to the plane of movement 30, and the at least im
  • the outer surface 138, 160 of the contact part 26 and / or the fastening part 28, which is oriented essentially parallel to the plane of movement 30, is at least 2 mm, preferably at least 3 mm and particularly preferably at least 4 mm.
  • the maximum distance 158 of the contact surface 156, which is at least substantially perpendicular to the plane of movement 30, and the outer surface 138, 160 of the contact part 26 and / or the fastening part 28, which is at least substantially parallel to the plane of movement 30, is at least substantially 5 mm.
  • the outer surface 160 of the contact part 26 is arranged on the outer wall 62 of the contact part 26, in particular on one of the machine tool 12, in particular the tool 22 and / or the tool holder 18, opposite side of the contact part 26.
  • the contact surface 156 of the contact part 26 is inclined to Movement plane 30 aligned, in particular at an angle 196 of at least substantially 30 °.
  • the contact surface 156 is arranged on a side of the contact part 26 facing the machine tool 12, in particular the tool receptacle 18, on the contact part 26.
  • the contact surface 156 is arranged on an inside of the wall 76 of the transition area 66 and / or the wall 80 of the recess area 70 facing the machine tool 12, in particular the tool holder 18, in particular it is delimited by the wall 80 of the recess area 70.
  • the contact surface 156 is provided to be applied to an end of the protective hood 16 that faces the contact part 26 and is at least substantially parallel to the axis of rotation 20 or to the central axis 60.
  • the maximum distance 158 of the contact surface 156 and the outer surface 138, 160 of the contact part 26 and / or the fastening part 28, which is at least substantially parallel to the plane of movement 30, is at least substantially parallel to the pivot axis 40.
  • the outer surface 138, 160 of the contact part 26 and / or of the fastening part 28 spans with at least one surface 162 of the fastening part 28 facing the machine tool 12 a maximum height 164 of the protective hood adapter device 14, which in particular is at least substantially perpendicular to the plane of movement 30 and / or at least is aligned essentially parallel to the pivot axis 40 and / or the axis of rotation 20 and / or in particular is arranged on the other clamping area 99, in particular the wall 108 of the other clamping area 99.
  • the maximum height 164 of the protective hood adapter device 14 is in particular at most 50 mm, preferably at most 45 mm, preferably at most 40 mm and particularly preferably at most 35 mm.
  • the maximum height 164 of the protective hood adapter device 14 is particularly preferably at least substantially 34 mm.
  • the outer wall 62 of the contact part 26 has a minimum distance 168 in an assembled state or a clamped state to the tool 22 and / or a receiving opening 166 of the tool holder 18, which is in particular at least 5 mm, preferably at least 10 mm and particularly preferably at least 15 mm.
  • the minimum distance 168 between the outer wall 62 and the tool 22 and / or the receiving opening 166 is in particular at most 30 mm, preferably at most 27 mm and particularly preferably at most 25 mm.
  • the minimum distance 168 between the outer wall 62 and the tool 22 and / or the receiving opening 166 is particularly preferably at least substantially 20 mm.
  • the minimum distance 168 between the outer wall 62 and the tool 22 and / or the receiving opening 166 is at least substantially perpendicular to the plane of movement 30 and / or at least substantially parallel to the central axis 60 or to the axis of rotation 20.
  • the receiving opening 166 is preferably provided for receiving the tool 22 on the axis of rotation 20.
  • FIG. 7 shows a side view of a section through the machine tool system 10 in a region of the protective hood 16 and the protective hood adapter device 14 on one side of the central axis 60 (see FIG. 4).
  • the protective hood adapter device 14 comprises a latching element 170 for fixing the fastening part 28 to the contact part 26, which extends from the fastening part 28 in a direction 172 that is at least substantially perpendicular to the plane of movement 30.
  • the latching element 170 is arranged on the fastening part 28.
  • the latching element 170 is arranged within the other contact area 97, in particular on an inside of the wall 112 of the other contact area 97 facing the contact part 26.
  • the latching element 170 delimits one of the bracing surfaces 118 or the bracing area 98.
  • the latching element 170 has a wedge-shaped basic shape in a section plane, in particular that shown in FIG. 7, which is at least substantially perpendicular to the plane of movement 30.
  • the locking element 170 extends at least substantially perpendicular to the movement plane 30 or along the pivot axis 40 viewed along a straight path on the fastening part 28 (see Figure 4).
  • the Rastele element 170 engages to fasten the application part 26 by means of the fastening part 28 to the recess area 70 of the application part 26.
  • the Rastele element 170 is arranged at a distance from the pivot axis 40.
  • the locking element 170 is arranged at an end of the fastening part 28 facing away from the bearing area 92 (see FIG. 4).
  • the latching element 170 is formed in one piece with the fastening part 28.
  • the fastening element 28 has a recess 194 in a region of the latching element 170, in particular within the other contact area 97 (see FIG. 3), which is provided to enable a user to release the latching element 170 from the contact part 26.
  • the limited by the fastening part 28 Ausneh determination 194 is formed over an entire wall thickness 116 of the fastening part 28 from.
  • the recess 194 delimited by the fastening part 28 has a rectangular basic shape. However, other configurations of the recess 194 are also conceivable.
  • the contact part 26 has a receiving recess 174 to protect the fastening part 28 during operation of the machine tool 12, where the receiving recess 174 is arranged on an outer side of the contact part 26 facing away from the contact surface 156.
  • the recess region 70 of the contact part 26 preferably comprises the receiving recess 174.
  • the contact part 26 delimits a latching recess 176 which is arranged in the recess region 70.
  • the wall 80 of the recess region 70 delimiting the latching recess 176 has a greater minimum distance from the central axis 60 or from the axis of rotation 20 than the receiving recess 174.
  • the latching recess 176 is, in particular, formed in one piece with the receiving recess 174.
  • the receiving recess 174 is limited in a direction facing the central axis 60 or the axis of rotation 20 by the outer wall 62 of the contact part 26.
  • other configurations of the latching element 170 and / or the receiving recess 174 are also conceivable, in particular with more than one latching element 170 and / or one latching element 170 arranged on the contact part 26.
  • the outer surface 138 of the fastening part 28 is arranged on a side of the fastening part 28 facing away from the receiving recess 174.
  • a minimum distance 178 of the outer surface 138 of the fastening part 28 and the outer surface 160 of the contact part 26, which is at least substantially parallel to the pivot axis 40 and / or to the central axis 60, is in particular at most 2 mm, preferably at most 1 mm and particularly preferably at most 0, 5 mm, wherein in particular the outer surface 160 of the contact part 26 has a smaller minimum distance 180 from the plane of movement 30 and / or the machine tool 12, in particular the tool holder 18, like the outer surface 138 of the fastening part 28.
  • the outer surface 138 of the Fastening part 28 and the outer surface 160 of the application part 26 at least for the most part within a common plane, which is preferably directed at least substantially parallel to the plane of movement 30.
  • FIG. 7 shows the application receptacle 182 in an area of the other application area 97.
  • the fastening part 28, in particular the walls 100, 112 of the two contact areas 96, 97 are designed such that an inner surface 184 of the wall 72 of the jacket area 64 of the contact part 26 is flush with an inner surface 186 of the fastening part 28 adjoining the contact mount 182 is, in particular is formed together in a plane which is at least substantially perpendicular to the plane of movement 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne un dispositif adaptateur pour capot protecteur destiné à être monté sur une machine-outil (12), notamment manuelle, comprenant au moins une partie d'application (26) à appliquer sur un capot protecteur (16) de la machine-outil (12) et au moins une partie de fixation (28) qui est montée, de manière mobile au moins dans un plan de déplacement (30), sur la partie d'application (26). Selon l'invention, la partie de fixation (28) permet de serrer la partie d'application (26) contre le capot protecteur (16) par une force de direction au moins sensiblement perpendiculaire au plan de déplacement (30).
EP20815774.3A 2019-12-30 2020-11-26 Dispositif adaptateur pour capot protecteur et système de machine-outil pourvu de ce dispositif adaptateur pour capot protecteur Pending EP4084927A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019220622 2019-12-30
PCT/EP2020/083476 WO2021136621A1 (fr) 2019-12-30 2020-11-26 Dispositif adaptateur pour capot protecteur et système de machine-outil pourvu de ce dispositif adaptateur pour capot protecteur

Publications (1)

Publication Number Publication Date
EP4084927A1 true EP4084927A1 (fr) 2022-11-09

Family

ID=73598862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20815774.3A Pending EP4084927A1 (fr) 2019-12-30 2020-11-26 Dispositif adaptateur pour capot protecteur et système de machine-outil pourvu de ce dispositif adaptateur pour capot protecteur

Country Status (5)

Country Link
US (1) US20230053513A1 (fr)
EP (1) EP4084927A1 (fr)
CN (1) CN114901426A (fr)
DE (1) DE102020216392A1 (fr)
WO (1) WO2021136621A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012207571B4 (de) * 2012-04-27 2021-11-11 Robert Bosch Gmbh Abdeckvorrichtung mit Staubabsaugung bei Verwendung mit einem Elektrowerkzeug
US11072052B2 (en) * 2015-04-13 2021-07-27 Black & Decker Inc. Guard assembly for a power tool
JP6667236B2 (ja) * 2015-09-10 2020-03-18 株式会社マキタ グラインダ、カバー及びカバーセット
DE202019101534U1 (de) * 2018-05-25 2019-05-20 Nanjing Chervon Industry Co., Ltd. Winkelschleifer

Also Published As

Publication number Publication date
US20230053513A1 (en) 2023-02-23
CN114901426A (zh) 2022-08-12
WO2021136621A1 (fr) 2021-07-08
DE102020216392A1 (de) 2021-07-01

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