EP3771536B1 - Machine à fraiser manuelle - Google Patents

Machine à fraiser manuelle Download PDF

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Publication number
EP3771536B1
EP3771536B1 EP19215573.7A EP19215573A EP3771536B1 EP 3771536 B1 EP3771536 B1 EP 3771536B1 EP 19215573 A EP19215573 A EP 19215573A EP 3771536 B1 EP3771536 B1 EP 3771536B1
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EP
European Patent Office
Prior art keywords
handle
milling machine
tool
machine
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19215573.7A
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German (de)
English (en)
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EP3771536A1 (fr
Inventor
Peter Galeski
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.)
Atlas Diamant GmbH
Original Assignee
Atlas Diamant 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 Atlas Diamant GmbH filed Critical Atlas Diamant GmbH
Publication of EP3771536A1 publication Critical patent/EP3771536A1/fr
Application granted granted Critical
Publication of EP3771536B1 publication Critical patent/EP3771536B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
    • B27G19/04—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/08—Grinders for cutting-off being portable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B9/00—Portable power-driven circular saws for manual operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/10—Portable hand-operated wood-milling machines; Routers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/183—Hand tools, e.g. portable, motor driven

Definitions

  • the invention relates to a hand milling machine for machining a surface of a floor or a wall, according to the preamble of claim 1.
  • Cutting machines within the meaning of this application include machines for milling and are made up of, among other things EP 2 607 036 B1 as well as from EP 1 044 774 B1 known. Such machines are used, for example, to remove adhesive residues or similar residues from concrete or screed.
  • a hand-held power tool for making incisions which is characterized in that the drive motor of the hand-held power tool is pivotably arranged with respect to a positioning device, for example a mounting plate, specifically in such a way that at least one pulling position for pulling a cut and at least one sliding position for pushing a cut can be adjusted.
  • a positioning device for example a mounting plate
  • the EP 1 044 774 B1 discloses a handheld milling machine according to the preamble of claim 1.
  • the invention is based on the object of proposing a hand-held milling machine that enables better processing of a surface, in particular in corner areas.
  • the tool is suitable for the respective process and can, for example, be a milling drum that is particularly equipped with monocrystalline or polycrystalline diamond (MKD / PCD).
  • MKD monocrystalline or polycrystalline diamond
  • the tool is attached to the machine body in such a way that it can be driven and rotated.
  • the machine body usually has a housing or a cover in order to avoid reaching into the rotating tool.
  • the housing or the cover are open on at least one side in order to be able to establish contact between the tool located therein and the surface to be processed.
  • the working plane extends parallel to the tool axis and represents the plane along which the machine is moved during the work process.
  • the working plane can be defined by the geometry of the housing or the cover.
  • the housing or the cover can have surfaces or edges along which the machine is moved over the surface to be processed.
  • the handle is used to hold the machine body with one hand, for example the left hand.
  • the guide handle is used to guide the machine along or parallel to the working plane and can be operated with the other hand, especially the right hand.
  • the handle and the guide handle can preferably be ergonomically shaped, that is, they are adapted to the shape of a hand, so that they are comfortable to grip and handle even during prolonged use. This ensures that the machine can be guided precisely along the surface to be processed and at the same time the machine body, which experiences vibrations and shocks due to the work process, can be kept stable.
  • the guide handle can be pivoted relative to the working plane, it is possible to change the angle of the guide handle relative to the working plane.
  • the guide handle is preferably pivotable by approximately 180 °, that is, the angle can be changed by 180 °.
  • the guide handle is particularly preferably completely pivotable, that is to say through 360 °. This is particularly advantageous in corner areas when the machine approaches the floor when machining a wall surface, or when the machine approaches a wall when machining a floor surface.
  • the operator of the machine can then adjust the angle of the guide handle relative to the working plane and pivot the guide handle in a direction facing away from the edge, so that the guide handle does not block the path to the edge. This allows the wall surface or the floor surface to be worked right up to the edge. Edge areas that cannot be processed are minimized compared to known cutting machines.
  • a change from a pulling operation to a pushing operation of the cutting machine can be achieved by maintaining the regularly unchangeable running direction of the tool, but by pivoting the guide handle about the pivot axis of the angle between the guide handle and the working plane is changed by, for example, about 180 °.
  • a suction device attached to the guide handle can pivot around the working plane with the guide handle so that the suction device is always advantageously placed next to the rotating tool in both pulling and pushing operation in order to reliably suction off the respective material removed.
  • the lock has a locking body which comprises at least two recesses, and a locking element for interlocking engagement in one of the recesses.
  • Each recess represents a position in which the lock can determine the guide handle relative to the working plane. The higher the number of recess, the higher the number of positions in which the guide handle can be found.
  • the form-fitting connection enables the guide handle to be locked securely and stably so that it does not move automatically during processing.
  • the hand-operated cutting machine preferably comprises a handle for releasing the locking element from the recess in order to unlock the lock.
  • the lock can be released by means of an easy-to-use mechanism.
  • the handle is arranged in the area of the handle, so that the locking can be released in particular during operation of the machine by means of the hand located on the handle. This makes it possible that the guide handle can be pivoted relative to the working plane without stopping the machine or interrupting the work process.
  • the lock can preferably have a spring which counteracts an actuation of the handle in order to release the locking element from the recess.
  • the recesses are designed as spherical segments, the locking device having a ball for engaging in the recesses.
  • This configuration represents an embodiment according to the invention which is suitable for producing a form-fitting connection, in which the ball can engage in one of the spherical segment-shaped recesses in order to lock the guide handle.
  • the shape of a ball has the particular advantage that it does not tilt when it releases the recess or engages in it.
  • the lock has a pull rod which comprises a holding element for holding the ball in the recess.
  • the retaining element can in particular be attached coaxially to the tension rod, namely attached to its end or pushed onto it, so that the tension rod extends through the retaining element.
  • the holding element can preferably have a larger circumference or diameter than the tension rod.
  • the holding element is preferably arranged and dimensioned in such a way that it holds the ball in the recess due to its circumference or diameter.
  • the holding element has a constriction.
  • the constriction is arranged and designed in such a way that it can at least partially accommodate the ball so that it can escape from the recess into the constriction and clear the recess.
  • the holding element is movably mounted by means of the pull rod in such a way that when the pull rod is not actuated, the ball is held in the recess by the holding element and, when the pull rod is actuated, the ball escapes from the recess into the constriction and releases the recess.
  • the recesses are arranged along a circular path.
  • An arrangement along a circular path corresponds to the pivoting movement of the guide handle and thus enables several options for locking along this circular path.
  • the recesses are preferably distributed at an angle of 160 °, particularly preferably 180 °, along the circular path, so that the guide handle can be fixed over this area by means of the lock.
  • the recesses are spaced equally from one another.
  • the machine body has a suction opening for suctioning off material and for attaching a suction hose
  • the guide handle preferably has a mounting for the articulated mounting of the suction hose.
  • the suction opening can be attached to the housing in that the suction opening for the suction hose, which is connected to a suitable vacuum cleaner, has in the housing wall.
  • the suction hose is attached to the suction opening so that material and dust can be suctioned off immediately during processing. This ensures that the operator is not bothered by abrasion and dust during processing.
  • the suction opening is preferably arranged in such a way that the material removed by the tool is conveyed or flung directly to the suction opening during machining.
  • the guide handle can have a drive area in which a drive for the rotatable tool is arranged, and a gripping area which is separate from the drive area and on which a switch button for actuating the drive is preferably arranged.
  • the separate arrangement enables a mass distribution which is conducive to the operability and the pivotability of the guide handle, in that the drive can be arranged close to the pivot axis.
  • the arrangement of the drive close to the pivot axis ensures a small distance between the drive and the tool.
  • the gripping area can continue from the pivot axis are arranged remotely, so that only small forces are required for pivoting due to the larger lever arm.
  • the guide handle preferably has ventilation openings, in particular ventilation slots, for the drive, which are arranged in the drive area.
  • ventilation openings in particular ventilation slots, for the drive, which are arranged in the drive area.
  • the machine body can have an adjusting screw for adjusting a milling depth.
  • the setting can in particular take place continuously.
  • the machine body preferably has markings for reading off the set milling depth. This means that the milling depth of the machine can be read and adjusted at any time.
  • Figs. 1 to 3 and Fig. 11 show perspective views of a cutting machine, which is designed as a hand-held milling machine 100 for processing a surface of a floor or a wall
  • Figures 9 and 10 show perspective views of a cutting machine not according to the invention, which is designed as a hand-held circular saw 200.
  • the machines 100, 200 each have a machine body 10, 110.
  • the hand milling machine 100 according to Figs. 1 to 3 and Fig. 11 comprises a housing 11 in which a tool 60, in particular in Fig. 3 and 6 to 8 clearly shown and rotatable about a tool axis Aw milling drum is added.
  • a handle 12 for holding the machine body 10 is attached to the housing 11.
  • the housing 11 defines a working plane E A , to which the tool axis Aw extends parallel.
  • the hand-held milling machine 100 also has a guide handle 20 with which the hand-held milling machine 100 is guided, which extends inclined at a variable angle ⁇ to the working plane E A and is mounted on the housing 11 so as to be pivotable about a pivot axis As.
  • the guide handle 20 can be pivoted relative to the housing, and thus to the working plane E A , in order to set the angle ⁇ .
  • the hand-held milling machine 100 comprises a locking device 30 for fixing the guide handle 20 relative to the working plane E A.
  • the hand-held milling machine 100 also includes an in particular in Fig. 3 and 6 to 8 shown tool carrier 40, on which the tool 60 designed as a milling drum is received.
  • the tool carrier 40 extends along the tool axis Aw.
  • a tool 160 a cutting disk, rotatable about a tool axis Aw is received.
  • a handle 112 for holding the machine body 110 is attached to the machine body 110.
  • the tool axis Aw extends parallel to a working plane E A.
  • the circular saw 200 also has a guide handle 120 for guiding the circular saw 200.
  • the guide handle 120 extends at an angle ⁇ inclined to the working plane E A and is mounted on the machine body 110 so as to be pivotable about a pivot axis A S in order to set the angle ⁇ .
  • the circular saw 200 comprises a locking device 130 for fixing the guide handle 120 relative to the working plane E A.
  • the tools 60, 160 are each attached to the machine bodies 10, 110 in such a way that a drive can drive them and they can rotate about the tool axis Aw.
  • the hand milling machine 100 according to Fig. 1 shows also an adjusting screw 14 to adjust a milling depth steplessly.
  • the adjusting screw 14 is connected to a threaded rod 19 which can be moved along an internal thread provided on the housing 11 perpendicular to the tool axis Aw in order to adjust the milling depth.
  • Markings 15, which are used to read off the set milling depth are attached to the housing 11.
  • the guide handles 20, 120 each have a drive area 22, 122.
  • the guide handles 20, 120 each have a gripping area 23, 123 separated from the drive area 22, 122.
  • the drive is arranged in the drive area 22, 122.
  • a switch button 24, by means of which the drive can be actuated, is arranged on the gripping area 23, 123.
  • the drive area 22, 122 is arranged closer to the pivot axis As than the gripping area 23, 123, so that the mass of the guide handle 20, 120 and the drive is distributed in such a way that the guide handle 20, 120 can be easily operated and pivoted. In addition, this causes the drive to be arranged close to the pivot axis As, which results in a small distance between the drive and the tool 60, 160.
  • the guide handle 20, 120 also has ventilation openings 25 for the drive, which are designed as ventilation slots. These are arranged in the drive area 22, 122 in order to avoid that operators unintentionally cover the ventilation openings 25 during operation.
  • the housing 11 comprises a suction opening 13 to which a suction hose can be attached in order to suction off any material and dust that arise during operation.
  • the guide handle 20 has in the embodiment according to Fig. 11 a bearing 21 on which the suction hose can be articulated.
  • the storage 21 is an optional design that can be provided depending on the routing of the hose.
  • the suction opening 13 is arranged at a point on the housing 11 to which any material removed by the tool 60 during machining is conveyed or flung. This enables a quick suction, with which there is no great burden from abrasion or dust.
  • the handle 12, 112 is used to hold the machine body 10, 110 with one hand, in particular the left hand.
  • the guide handle 20, 120 is used to guide the machine 100, 200 along or parallel to the working plane E A and can be operated with the other hand, in particular the right hand.
  • Both the handle 12 and the guide handle 20 of the hand-held milling machine 100 according to FIG Figs. 1 to 3 are ergonomically shaped so that they fit the shape of a hand.
  • the guide handles 20, 120 are each pivotable about the pivot axis A S relative to the working plane E A. This makes it possible to change the angle ⁇ of the guide handles 20, 120 relative to the working plane E A.
  • the guide handles 20, 120 can be pivoted through 360 °, that is, the angle ⁇ can be changed through 360 °.
  • the pivotability makes it possible that in corner areas, when the machine 100, 200 approaches the floor when working on a wall surface, or when the machine 100, 200 approaches a wall when working on a floor surface, almost the entire corner area with the machine 100 , 200 can be edited.
  • a suction hose attached to the guide handle 120 pivots (not shown in FIG Figs. 1 to 3 shown) with the guide handle 120 around the working plane E A , so that the suction hose can reliably suck off the respective material removed in both a pulling and a pushing operation.
  • the locks 30, 130 of the machines 100, 200 each have a locking body 31, 131, in each of which a plurality of recesses 32, 132 are made, such as in particular Fig. 4, 5 and 10 clearly show.
  • the detents 30, 130 each include a locking element 33, 133 which can engage in the recesses 32, 132.
  • Each recess 32, 132 represents a position in which the locking device 30, 130 can determine the guide handle 20, 120 relative to the working plane E A.
  • the recesses 32 are formed in the shape of a spherical segment. Accordingly, a ball 36 is for the recesses 32 are provided as a locking element 33.
  • the circular saw 200 has recesses 132 which are designed as blind holes into which a locking element 133 designed as a pull rod 137 can engage.
  • the recesses 32, 132 are each arranged along a circular path at equal distances from one another, so that the pivoting movement of the respective guide handle 20, 120 is mapped.
  • the recesses 32, 132 allow several locking options along this circular path.
  • the respective locking elements 33, 133 can be released from the recess 32, 132 by means of a handle 34, 134, so that the locking device 30, 130 is unlocked.
  • the handle 34, 134 is arranged in the area of the handle 12, 112 so that the lock 30, 130 can also be released during operation of the machines 100, 200 by means of the hand located on the handle 12, 112. In the case of the circular saw 200, this is done in that the pull rod 137 is connected directly to the handle 134 and is released from the recesses 132 when the handle 134 is actuated.
  • the pull rod 37 comprises a holding element 38 which is arranged coaxially to the pull rod 37 and which can hold the ball 36 in one of the recesses 32.
  • the holding element 38 has a larger diameter than the tension rod 37 and a constriction 39.
  • the holding element 38 is arranged such that the ball 36 is held in the recess 32 due to the diameter of the holding element 38.
  • the lock 30 is then released and the guide handle 20, 120 is pivotable about the pivot axis A S. If the tension rod 37 is returned again, the ball 36 becomes the constriction due to the geometry 39 conveyed into a recess 32 so that the catch 30 is locked. Due to the design as a ball 36, it is also ensured that no tilting can occur during locking or unlocking.
  • the locks 30, 130 each have a spring 35, 135.
  • the springs 35, 135 each counteract an actuation of the handle 34, 134.
  • the in Fig. 3 and 6 to 8 The tool carrier 40 shown has a first end 41 facing the drive, i.e. the guide handle 20, a second end 42 facing away from the drive, a circumferential surface 43 and several connecting elements 44 arranged on the first end 41, by means of which a tool 60 is positively locked in the circumferential direction U can be included.
  • the connecting elements 44 are designed as projections 46 which are arranged along the circumferential direction U and which have the same spacings from one another or are arranged at the same angles to one another.
  • the tool 60 a milling drum, is fastened to the tool carrier 40 in such a way that it can be driven and rotated in the circumferential direction U by means of the drive and the tool carrier 40.
  • the tool carrier 40 and the tool 60 are arranged coaxially.
  • an inner circumferential surface 63 of the tool 60 rests against the outer circumferential surface 43 of the tool carrier 40.
  • the outer circumferential surface 43 has at least one first section 51, preferably two or more first sections 51, a second section 52 which has a smaller outer diameter than the first sections 51 and which extends in the circumferential direction U Paragraphs 50 that separate the first sections 51 from the second section 52.
  • the first sections 51 are provided with flat surfaces 53 which extend transversely to the U extend circumferential direction.
  • the flat surfaces 53 are distributed along the circumference of the tool carrier 40 and are attached, for example, by removing material, in particular by milling.
  • the tool 60 is made from a tube and has a first end 61, a second end 62, an outer circumferential surface 64 covered with cutting elements 67 and several connecting elements 65 arranged on the first end 61, which are used to produce a form-fitting connection with the tool carrier 40 serve in the circumferential direction U.
  • the connecting elements 65 are designed as indentations 66 which are arranged along the circumferential direction U and extend in the axial direction of the tool 60 as far as the first end 61.
  • the indentations 66 and the projections 46 correspond to one another, so that in the assembled state the projections 46 engage in the indentations 66 and thus form a positive connection between the tool carrier 40 and the tool 60 in the circumferential direction U. This also ensures that the tool 60 cannot be installed the wrong way round.
  • the cutting elements 67 are usually made of monocrystalline or polycrystalline diamond.
  • a clamping device 45 is provided with which the tool carrier 40 and the tool 60 can be clamped against the hand milling machine 100 in the direction of the tool axis Aw, i.e. in the axial direction of the tool carrier 40 and the tool 60.
  • the tensioning device 45 has a tensioning screw 47 and a tensioning nut 48 for tightening and loosening the tensioning screw 47.
  • the clamping screw 47 is tightened coaxially to the tool 60 and the tool carrier 40.
  • a clamping plate 68 which is not detachably connected to the tool 60, preferably pressed in, is used for this purpose.
  • the clamping plate 68 can be connected to the tool 60 by means of a thread attached to the clamping plate 68, a fit or by means of grub screws.
  • the clamping plate 68 serves as a platform for the clamping nut 48 by forming a bracing surface 70 for the clamping nut 48, and has a through opening 69 for the Clamping screw 47 open.
  • the clamping screw 47 is guided through the through opening 69 of the clamping plate 68 arranged on the second end 42 of the tool carrier 40 and the tool 60 and is clamped against the clamping plate 68 by means of the clamping nut 48.
  • the pressed-in clamping plate 68 rests against the inner circumference of the tool 60 and seals against the outside, in particular against dust.
  • the clamping plate 68 can also be colored or labeled, for example it can be identified by the manufacturer's name.
  • the clamping nut 48 has in the embodiment according to Fig. 11 a foldable handle 49 for tightening and loosening the clamping screw 47 without an additional tool, such as a wrench.
  • the clamping nut 48 with the clamping screw 47 can be detached from the tool carrier 40 without tools.
  • the clamping nut 48 has a recess in order to lower the foldable handle 49 therein.
  • the tool carrier 40 and the tool 60 are received in the housing 11, in particular Fig. 3 clearly shows.
  • the housing 11 has a releasable cover 16 facing the second end 42 of the tool carrier 40, which makes it easier to change the tool 60.
  • the detachable cover 16 of the housing 11 is arranged at the second end 42 of the tool carrier 40 in order to facilitate easy access to the tool 60 and the tool carrier 40 and to enable a quick tool change.
  • the housing 11 has a guide 17, along which the cover 16 can be pushed into the housing 11 in order to attach the cover 16 to the housing 11.
  • the guide 17 is formed by two guide rails arranged on opposite sides of the housing 11, along which the cover 16 can be pushed.
  • the tour 17 extends at right angles to the working plane E A, so that the cover 16 is inserted in a right angle to the working plane E A toward and located away at a right angle from the working plane E A.
  • a lock 18 is attached to the housing 11, which is used to hold the cover 16 on the housing 11 and in the guide 17.
  • the lock 18 is rotatably mounted and can be moved manually without tools from a position in which it holds the cover 16 on the housing 11 to a position in which it releases the cover 16, so that the cover 16 from the housing 11 and out the guide 17 can be removed.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mining & Mineral Resources (AREA)
  • Sawing (AREA)

Claims (10)

  1. Fraiseuse manuelle (100) pour usiner la surface d'un sol ou d'un mur, comprenant:
    un corps de machine (10) ayant un logement (11) pour recevoir un outil (60) pouvant tourner autour d'un axe d'outil (AW) et une poignée de maintien (12) fixée au logement (11) pour maintenir le corps de machine (10) et définir un plan de travail (EA) par rapport auquel l'axe d'outil (AW) s'étend parallèlement;
    une poignée de guidage (20) pour guider la fraiseuse manuelle (100), caractérisée en ce que la poignée de guidage (20) s'étend selon un angle (α) incliné par rapport au plan de travail (EA) et est montée pivotante sur le boîtier (11) autour d'un axe de pivotement (AS) pour régler l'angle (α);
    et en ce que la fraiseuse à main comprend un dispositif de verrouillage (30) pour verrouiller la poignée de guidage (20) par rapport au plan de travail (EA);
    le dispositif de verrouillage (30) ayant un corps de verrouillage (31) qui comprend au moins deux évidements (32) sous la forme d'un segment sphérique qui sont disposés le long d'un trajet circulaire et représentent des positions dans lesquelles le dispositif de verrouillage (30) verrouille la poignée de guidage (20) par rapport au plan de travail (EA);
    dans lequel la détente (30) comprend un élément de verrouillage (33) configuré pour s'engager positivement dans l'un des évidements (32), l'élément de verrouillage (33) ayant la forme d'une boule;
    dans lequel la détente (30) comprend une tige de traction (37) comprenant un élément de retenue (38) configuré pour retenir l'élément de verrouillage (36) dans l'évidement (32);
    dans lequel l'élément de retenue (38) comprend un étranglement (39) recevant au moins partiellement l'élément de verrouillage (36);
    et dans lequel l'élément de retenue (38) est monté mobile au moyen de la tige de traction (37) de telle sorte que, dans un état non actionné de la tige de traction (37), l'élément de verrouillage (36) est retenu dans l'évidement (32) par l'élément de retenue (38) et, dans un état actionné de la tige de traction (37), l'élément de verrouillage (36) s'échappe de l'évidement (32) dans le rétrécissement (39) et libère l'évidement (32).
  2. Fraiseuse manuelle (100) selon la revendication 1, caractérisée par une poignée (34) actionnant la tige de traction (37) pour libérer l'élément de verrouillage (33) de l'évidement (32) afin de déverrouiller le dispositif de verrouillage (30).
  3. Fraiseuse manuelle (100) selon la revendication 2, caractérisée en ce que la poignée (34) est disposée dans la zone de la poignée de maintien (12).
  4. Fraiseuse manuelle (100) selon la revendication 2 ou 3, caractérisée en ce que le cliquet (30) comprend un ressort (35) qui s'oppose à un actionnement de la poignée (34) pour libérer l'élément de verrouillage (33) de l'évidement (32).
  5. Fraiseuse manuelle (100) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les évidements (32) sont équidistants les uns des autres.
  6. Fraiseuse manuelle (100) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le corps de machine (10) présente une ouverture d'aspiration (13) pour aspirer le matériau abrasé et pour fixer un tuyau d'aspiration, et en ce que la poignée de guidage (20) présente un palier (21) pour supporter de manière articulée le tuyau d'aspiration.
  7. Fraiseuse manuelle (100) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la poignée de guidage (20) comprend une partie d'entraînement (22) dans laquelle est disposé un entraînement pour l'outil rotatif (60), et une partie de préhension (23) séparée de la partie d'entraînement (22), sur laquelle est disposé un bouton de commutation (24) pour actionner l'entraînement.
  8. Fraiseuse manuelle (100) selon la revendication 7, caractérisée en ce que la poignée de guidage (20) comporte des ouvertures d'aération (25) pour l'entraînement disposées dans la zone d'entraînement (22).
  9. Fraiseuse manuelle (100) selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le corps de machine (10) comprend une vis de réglage (14) pour régler, notamment en continu, une profondeur de fraisage.
  10. Fraiseuse manuelle (100) selon la revendication 9, caractérisée en ce que le corps de machine (10) comprend des marquages (15) pour lire la profondeur de fraisage réglée.
EP19215573.7A 2019-08-02 2019-12-12 Machine à fraiser manuelle Active EP3771536B1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3382980B2 (ja) * 1992-10-02 2003-03-04 株式会社マキタ 携帯用丸鋸
EP0993919A3 (fr) * 1998-10-07 2005-10-26 Precision Tools Limited Exakt Outil universel motorisé portatif
DE19915559C2 (de) 1999-04-07 2001-06-28 Itw Befestigungssysteme Wandschlitzfräse
DE102005009284B3 (de) * 2005-02-22 2006-04-20 Flex-Elektrowerkzeuge Gmbh Handwerkzeugmaschine zur Schnitteinbringung und Verfahren zum Einstellen von Schnitteinbringungsmöglichkeiten bei einer Handwerkzeugmaschine
DE102011122459A1 (de) 2011-12-22 2013-06-27 Mafell Ag Handfräse
TWI611865B (zh) * 2017-02-23 2018-01-21 用於砂輪機之安全護蓋

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