EP2349642B1 - Deckenschleifmaschine - Google Patents

Deckenschleifmaschine Download PDF

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Publication number
EP2349642B1
EP2349642B1 EP09749011.4A EP09749011A EP2349642B1 EP 2349642 B1 EP2349642 B1 EP 2349642B1 EP 09749011 A EP09749011 A EP 09749011A EP 2349642 B1 EP2349642 B1 EP 2349642B1
Authority
EP
European Patent Office
Prior art keywords
grinding
ceiling
grinding machine
machine according
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09749011.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2349642A1 (de
Inventor
Kai Roscher
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.)
Roscher Kai
Original Assignee
Roscher Kai
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 Roscher Kai filed Critical Roscher Kai
Publication of EP2349642A1 publication Critical patent/EP2349642A1/de
Application granted granted Critical
Publication of EP2349642B1 publication Critical patent/EP2349642B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • 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
    • 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
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/182—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings
    • B24B7/184—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings pole sanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips

Definitions

  • the present invention relates to a ceiling grinder, comprising a drive unit, a sanding plate which can be set into rotation by means of the drive unit, a grinding head housing receiving the sanding disc with an opening freeing the sanding pad to the surface to be sanded and a retaining element for holding the ceiling sanding machine (see, for example, US Pat. OA-2005/053902).
  • Such ceiling grinders which are not only suitable for grinding a ceiling, but also for grinding walls or other surfaces, are from the prior art, for example from the EP 0 727 281 B1 , in various versions known.
  • a connection is provided for an air duct leading to a vacuum cleaner in order to suck the dust contaminated with grinding dust from the grinding head housing during the grinding operation.
  • the cover surrounding the local sanding pad is adjustable relative to the sanding pad against a spring force and equipped at its (pointing to the surface to be grounded) edge with a replaceable seal ring in grinding mode with the front the sanding plate is aligned and thereby largely or completely closes the gap between the hood and the machined surface for a suction air flow.
  • a negative pressure can be generated within the hood by means of a hood connected to the vacuum cleaner, which sucks the head part of the grinder, so to speak, on the wall or the ceiling and if necessary. Keeps against the entire weight.
  • Working with such a grinder is much easier because of the mentioned negative pressure generating means and less tiring for the operator, as this particular no overhead or no longer the entire weight of the grinder must be kept when ceiling sanding overhead.
  • this device also has certain disadvantages.
  • a grinder designed in such a way especially if the total weight of the grinder is to be held on a ceiling, requires a particularly powerful suction device which is still adequate for maintaining operational safety even under difficult conditions (strong dust formation and correspondingly rapidly polluting dust filters inside the suction device) ensure high suction power.
  • the negative pressure that can be generated within the hood - and thus the suction force that can be achieved via its contact surface - also depends on a sufficient evenness of the surface to be ground, which is not always the case in practice or in a specific application.
  • the gap between the hood and the surface to be machined by the slide ring can no longer be “largely” or “completely” closed, causing it to an undesirable air ingress
  • the hood of the grinding head comes.
  • the negative pressure generated by the vacuum cleaner can collapse directly, so that the grinder pulls the power to be ground surface suddenly abruptly or significantly reduced.
  • the same problem can also arise in case of operating errors, for example when the operating with the grinder operator tilts the grinding head by an awkward motion, which also suddenly collapses the previously prevailing in the hood vacuum suddenly collapses.
  • the grinder which may not be sufficiently firmly held by the operator at this moment, can then come loose from the slab (or wall) to be ground and - at high speed of the sanding disc - fall down to the floor, resulting in a considerable risk of injury to the operator or other surrounding people is connected.
  • the sliding rings provided in the aforementioned prior art are exposed to high abrasive wear, which also leads to a progressive reduction in the required sealing or throttling effect of such a sliding ring.
  • the slip rings must therefore be frequently replaced for the purpose of achieving the highest possible negative pressure.
  • WO 2007/093874 A1 a floor grinding machine and a dedicated grinding wheel.
  • the grinding wheel is provided on a mounting surface facing the grinding wheel with a plurality of mutually independent grinding elements, which are detachably mountable on the mounting surface.
  • said floor grinding machine is not suitable for grinding ceilings and it is further neither described nor recognized that the said grinding elements are suitable for generating a negative pressure.
  • the object of the present invention is to provide an effectively self-sustaining on the surface to be ground ceiling grinding machine of the type mentioned, which works in the most reliable manner possible independent of the presence of a suction device or is as independent as possible of the suction power of a possibly additionally connected suction device and in which the above-described disadvantages are reduced or not even occur.
  • a force acting on the grinding machine in the direction of the surface to be ground should thus be achieved in a particularly advantageous manner without the intervention of a optionally connectable dust extraction device, ie with alternative means for this purpose.
  • the means for generating the negative pressure comprise lamellar elements which rotate in the grinding operation of the grinding machine about the axis of the grinding disc and thereby within the grinding head housing a static negative pressure causing air flow cause.
  • the slat-like elements provided according to the invention and the air flow generated thereby in the grinding operation provide a new principle for generating negative pressure, with which a (ceiling) grinding machine can be attracted to a surface to be ground against its weight force or held completely against it.
  • the lamellar elements are designed or disposed within the grinding head housing on the grinding divider so that there is a stationary air circulation with driven grinding disc (also), which contributes to a static negative pressure in the desired size or caused alone.
  • the lamellar elements rotate in the grinding operation of the grinding machine together with the grinding plate about its axis.
  • the lamellar elements acting as means for producing negative pressure rotate with the sanding disk about its axis
  • the lamellar elements may also be appropriate to arrange the lamellar elements on a support structure separate from the sanding pad and to set this separately (eg by means of a separate drive) in rotation, wherein the rotation in the grinding operation of the grinding machine can take place in the same direction or in opposite directions to the rotation of the sanding pad ,
  • a common drive of sanding disc and lamellar elements is preferable in terms of the lowest possible weight of the ceiling grinder invention.
  • the lamellar elements are indeed offset by the same drive unit as the sanding pad in rotation, but that the sanding pad and / or the lamellar elements (or a support structure carrying them) via a switchable coupling mechanism optional - Individually or jointly - coupled to the drive unit or can be decoupled from this, whereby, for example, when commissioning a ceiling grinder according to the invention in a first step, the appropriate negative pressure generating lamellar elements can be set in rotation and only in a second step, if For example, the ceiling grinder is already applied to the surface to be ground and held against it, the sanding plate added, ie can also be set in rotation.
  • the lamellar elements may also be advantageous to drive the lamellar elements with a higher rotational speed relative to the sanding pad, for example by using a separate gearbox for the lamellar elements (with different gear ratios compared to the gearbox for the sanding pad). is possible.
  • the negative pressure generated according to the invention by means of the rotating lamellar elements and the resulting force acting on the grinding head in the direction of the surface to be ground thus prove to be considerably more stable against a non-optimal position of the grinding head housing relative to the prior art against any unevenness in this area. This not only increases operator safety but also the reliability and user-friendliness of the grinding machine.
  • the negative pressure applied by the rotation of the lamellar elements and the resulting force on the grinding machine (or on its grinding head) are independent of the suction power of e.g. if necessary, additionally to the vacuum cleaner connected to the grinding head housing.
  • the negative pressure generated solely by the lamellar elements should therefore be as large as possible, by means of suitable design and alignment of the lamellar elements inducing the airflow or circulation, in order to produce a force acting in the direction of the surface to be grounded already with the rotating lamellar elements , which preferably corresponds to at least 60% or at least 80% of the weight of the entire ceiling grinder.
  • the differential force still necessary to hold the ceiling sander on the slab to be ground can then be removed e.g. by additional vacuum generation by means of additional negative pressure generating means (e.g., an air exhaust means suitably connected to the wheelhead housing via suitable air ducts).
  • additional negative pressure generating means e.g., an air exhaust means suitably connected to the wheelhead housing via suitable air ducts.
  • the negative pressure generated in the grinding operation within the grinding head housing solely by means of the lamellar elements is so high that the grinding machine with a force exceeding the weight of the entire grinding machine is held on the surface to be ground.
  • a failure or a reduction in performance of a vacuum cleaner connected to the suction of the grinding dust thus has no appreciable or no safety-relevant influence on the functioning of the grinding machine, including the force acting on it in the direction of the surface to be ground.
  • the negative pressure caused by the lamellar elements due to their concrete design and arrangement e.g. only corresponds to a force which is less than the total weight of the grinding machine, the necessary for a complete overcoming of the weight of the grinder additional negative pressure in the grinding head housing of the suction device, so that in such a case, different negative pressure generating means for holding the grinding machine on the Ceiling work together.
  • a further preferred embodiment of the present invention provides that the lamellar elements protrude axially from one end side of the sanding disk in the direction of the surface to be sanded and thereby form the grinding wheels of the ceiling sanding machine.
  • the abrading in the aforementioned sense of the end face of the grinding disc abrasive - also in the area of the sanding pad - a substantially around the axis of the sanding pad (between the base and the surface to be sanded) circulating air flow and thus an increase in the dynamic air pressure in this Area.
  • the area of the sanding disk can contribute to the generation of the necessary holding force for the grinding machine as a result of a static negative pressure which also occurs in the region, which was not the case with the hitherto known vacuum generating means, since here the sanding pad with its abrasive material located on it (For example, a grinding wheel) all over the surface to be ground applied.
  • the vacuum generation Therefore, with the previously known suction devices, the annular surface surrounding the sanding pad within the hood of the sanding head was limited as an active surface for the force exerted on the sanding machine.
  • the lamellar elements are equipped at least in their grinding area contacting the surface to be ground with an exchangeable abrasive, in particular a sandpaper, or are themselves exchangeably fastened to the sanding pad. This ensures in a particularly simple manner that the abrasive abrasive - if necessary, with the lamellar elements - can be renewed if necessary.
  • the lamella-like elements forming the grinding bodies are resiliently mounted on the sanding pad or designed to be spring-elastic with respect to the axial direction of the sanding pad.
  • the contact pressure of the grinding bodies prevailing during grinding can be set or influenced in a particularly expedient manner on the surface to be ground.
  • a surrounding the opening for the sanding pad edge region of the Schleikopfgeophuses in its non-operating position laterally projects beyond the grinding body and is resiliently mounted so that it upon pressing the grinding head housing to the surface to be ground counter to a spring force is deflected so that the abrasive located on the sanding plate come into contact with the surface to be ground.
  • the resilient mounting of the grinding head housing to the sanding pad has a stop by which the maximum contact pressure of the turn resiliently shaped abrasive is specified to the surface to be sanded.
  • the lamella-like elements extend in the radial direction of the sanding disk, since this can cause a suitable air circulation in the sense of the invention.
  • the lamellar elements protrude in the direction of the surface to be ground of the sanding pad
  • the sanding pad at least in the intermediate region of the abrasive body, ie in the limited by the radial extent of the lamellar elements annulus, has no open openings, as this favors the setting of a particularly effective air circulation between the sanding pad and sanding surface.
  • a further advantageous embodiment of the present invention in which no need to be provided with the surface to be grounded in contact lamellar elements, in contrast, characterized in that the sanding pad has a flat grinding surface with a plurality of apertures, wherein the apertures an air duct between the provide surface to be ground and non-abrasive surface side arranged lamellar elements.
  • the openings prove to be advantageous, since they each provide an air channel between the non-grinding surface side arranged lamellar elements and the grinding surface.
  • the non-abrasive side arrangement of the lamellar elements allows this e.g. on the grinding surface at the back of the sanding pad or on a separate, not the grinding surface of the ceiling grinder forming support structure to order.
  • the static flow inducing dynamic pressure acts, inter alia, in the area of the openings of the grinding wheel on the surface to be ground, whereby an intake effect in the sense of the invention can be achieved. It is of great advantage that here a flat and compared to the use of separate grinding elements larger grinding surface is provided. Furthermore, such a sanding pad is easier to manufacture and the lamellar elements are - with the exception of the air flow - exposed to no additional burden.
  • the sanding pad in the region of its grinding surface with a flat, exchangeable abrasive, in particular in the form of an abrasive paper, equipped, which has the openings through the grinding surface of the sanding pad corresponding recesses to a produce appropriate air passage between lamellar elements and the surface to be ground.
  • Such an exchangeable abrasive especially in the form of an abrasive paper, is particularly favorable to manufacture, corresponds to the features of the invention a particularly preferred embodiment of the present invention and is thus made the subject of an independent claim.
  • the lamellar elements of a ceiling sanding machine according to the invention are preferably against the sanding pad, i.e. in order to obtain a suitable air flow or circulation. against the standing perpendicular to the axis of rotation end face of the sanding pad, employed, in a particularly advantageous manner at an angle of about 40 ° - 65 ° degree.
  • the holding element is advantageously designed as a telescopically adjustable in its length holding tube and is pivotally mounted on the grinding head housing, which positively affects the handling of a ceiling grinder invention.
  • the drive unit is arranged in or on the grinding head housing can, in an advantageous manner the electrical connection cable for the drive motor to be guided within the hollow holding tube, and - in order to ensure its telescopic adjustability - in a spiral shape.
  • a hollow holding tube - in addition to its advantageously low weight - simultaneously serve the air duct for a Schleifstaubabsaugung and this grinding head side via a flexible air duct with a related connection to the Schleifkopfgeophuse be connected and on the side facing away from the Schleifkopfgeophuse a connection for an air suction, e.g. a connecting piece for connecting a vacuum cleaner, have.
  • a separately attached to the holding element or holding tube handle is preferably arranged rotatably attached thereto.
  • a drive motor is preferably used in a grinding machine according to the invention, a brushless and constructed as an external rotor electric motor, which is available in spite of suitable performance in a particularly compact design and low weight.
  • a ceiling grinder 1 In a perspective view and in a sectional view illustrated embodiment of a ceiling grinder 1 according to the invention comprises a grinding head 2 and a thereto by means of a hinge 3 pivotally mounted about an axis holding element 4 in the form of a holding tube with a handle 5.
  • the housing 6 of the grinding head 2 comprises a mounting plate 7, on which an electric drive motor 8 is mounted, in the Grinding operation together with an in Fig. 1 Not shown bevel gear from two mutually offset by 90 ° bevel gears 9, 10 acts as a drive unit and the in Fig. 1 from the grinding head housing 6 concealed sanding pad 12 via a rotatably connected to the sanding pad 12 and the turntable side bevel gear 10 journals 11 set in rotation.
  • For good rotational properties of the turntable 12 of the journal 11 is mounted by means of ball bearings against the grinding head housing 6.
  • the grinding head housing 6 also has an in Fig. 1 up and in Fig. 4 to the left-facing opening 13, which releases the sanding pad 12 to a surface 14 to be ground, in particular a ceiling or wall to be ground.
  • This opening 13 is bounded by an edge 15 circulating around the sanding pad 12 and extending in the direction of the surface 14, which terminates at its end facing the sanding surface 14 with a circumferential bristle arrangement 16.
  • This serves in particular as dust protection for the environment, since the grinding dust produced in the grinding operation could otherwise be discharged into the environment because of the prevailing within the grinding head housing air flow or circulation.
  • the sanding head housing 6 substantially completely surrounding the sanding pad 12 further comprises a grinding head housing part 19 resiliently mounted on the mounting plate 7 via suitable bolts 17, 18, which holds the actual receptacle for the relative to the support plate 7 (with the exception of FIG its rotatability) arranged fixed position sanding plate 12 forms. Due to the resilient mounting of the housing part 19, the sanding pad 12 and the sanding plate 12 surrounding edge 15 of the grinding head housing in its relative position are adjustable.
  • a total of four lamellar elements 20 are rotatably mounted, projecting axially from said end face 21 of the grinding plate 12, each extending in the radial direction on the grinding plate and evenly, ie in each case 90 ° apart, over the circumference of Sanding plate 12 are distributed.
  • a larger number eg five, six, seven or even more
  • a smaller number of lamellar elements 20 can also be provided.
  • the lamellae 20 serve in the present embodiment of the invention at the same time as an abrasive body, so that the face 14 facing the surface 14 of the grinding plate 12 during the actual grinding process is spaced from the surface 14.
  • the lamellar elements 20 may be exchangeably attached to the sanding pad 12 or even the entire sanding pad 12 may be provided for replacement.
  • the lamellae 20 can also be made of other materials, for example of plastic or light metal, and, owing to the material selected and their inclination (angle alpha, cf. Fig. 3 above) to the end face 21 of the grinding plate 12 a certain spring elasticity so that they are bent, for example depending on their contact pressure on the surface 14 to be ground within certain limits according to arrow E to the sanding pad.
  • the grinding bodies consist of an approximately wedge-shaped base body 23 'made of an elastic foam, which is again provided on its pointing in the direction of rotation R front and its facing the wall or ceiling top with a robust sandpaper 22'.
  • a comparable elasticity see arrow E '
  • the sanding pad 12 and 12 ' in the region of a circular ring, which is bounded to the inside by the dashed circle and outwards by the circumference of the sanding plate, not broken.
  • the lamellae or grinding bodies 20 rotating about the axis of rotation S of the sanding disk 12 according to the arrow R can be seen in the upper illustration Fig. 3 , in which the grinding machine still has a certain distance from the surface 14 to be ground, nor rotate substantially freely with the sanding pad, while in the lower illustration Fig. 3 which is the actual Abrasive operation shows, are in frictional contact with the surface 14 to be ground.
  • a further effect results from the centrifugal force acting on the air in the vicinity of the grinding plate, which causes a radially outward flow of air according to arrow D there, ie directly above the end face 21 of the grinding plate 12 facing the surface 14, between two adjacent plates 20. Since the air obtained for this essentially from the center of the sanding pad has to get there again in a different way, an air stream directed radially inward will be arranged in the immediate vicinity of the surface 14 to be ground in accordance with the arrow C, which turns in the direction of the sanding plate 12 and returns there according to arrow D is transported to the outside.
  • connection 26 is also provided for an air hose 27, the latter being connected on the head end air-conducting with the hollow handle tube 4, on which - on the opposite side - another connection 28 for a (commercial) vacuum cleaner for Schleifstaubabsaugung is provided.
  • the electric motor 29 supplying power to the drive motor 8 is also guided on the grinding head side into the hollow holding tube 4, where, in order not to impair the telescopic length changeability of the holding tube 4, it is guided as a spiral cable, as described in US Pat Fig. 5 is shown above.
  • Fig. 5 Finally, below shows the concrete embodiment of the arranged on the holding tube 4 handle 5, which is rotatable relative to the holding tube using a circumferentially extending elongated hole 30.
  • Fig. 6 shows in three superimposed views - from top to bottom - first a top view of another sanding pad 31 for use in a grinding machine after Fig. 1 , Then a perspective view of the respective grinding disc 31 and finally on the grinding surface 33 of the respective grinding disc 31 exchangeable attachable abrasive 32 in the form of an abrasive paper.
  • the sanding pad 31 has an in Fig. 6 upwardly facing grinding surface 33, which is formed by a first substantially or exactly circular disc 47 of the grinding plate 31 and a total of four - substantially rectangular - openings 34 - 37 has.
  • the openings 34-37 extend in their longitudinal direction - comparable to the grinding elements of the previous embodiments - substantially in the radial direction and each give an air duct to one of a total of four lamellar Elements 39-42 at.
  • an air flow can be generated, which - at a suitable high speed and a suitably low weight of the ceiling grinder total - can hold the grinder on the sanding ceiling.
  • the lamellar elements 39-42 are formed by the inclined front side of four substantially wedge-shaped elements, which are arranged between the first disc 47 and a parallel thereto arranged second disc 38 and - viewed in plan view - slightly offset from the openings 34 - 37th are arranged.
  • each wedge-shaped element On the upper side, each wedge-shaped element has a flat web 43, with which it rests against the back surface of the first disk 47.
  • a sandpaper 32 for sanding surface side and replaceable attachment on the sanding pad 31 which has a total of four recesses 44 - 47, which correspond to the openings 34 - 37 of the sanding surface 33 of the sanding pad 31 ,
  • FIG. 7 a last embodiment of a usable in the context of the invention grinding plate 49 in a perspective view (shown in FIG Fig. 7 above) together with associated abrasive paper 50 (illustration in FIG Fig. 7 below).
  • the grinding surface 51 of the grinding disc 49 produced in the present case from only one disk has a total of eight apertures 52-59, to which corresponding recesses 60-67 of the abrasive paper 50 are assigned.
  • a lamellar element 68-75 is arranged at each opening of the grinding wheel 51, which is integral with the grinding wheel 49 is formed and protrudes obliquely there grinding surface back.
  • Such a grinding plate 49 can be made of aluminum, for example, by punching out of an aluminum disc, the openings 52-59 at three edges and bent to form the lamellar elements 68-75 in the position shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP09749011.4A 2008-11-04 2009-11-03 Deckenschleifmaschine Not-in-force EP2349642B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055797A DE102008055797A1 (de) 2008-11-04 2008-11-04 Schleifmaschine
PCT/EP2009/007860 WO2010051964A1 (de) 2008-11-04 2009-11-03 Deckenschleifmaschine

Publications (2)

Publication Number Publication Date
EP2349642A1 EP2349642A1 (de) 2011-08-03
EP2349642B1 true EP2349642B1 (de) 2016-08-17

Family

ID=41559550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09749011.4A Not-in-force EP2349642B1 (de) 2008-11-04 2009-11-03 Deckenschleifmaschine

Country Status (5)

Country Link
US (1) US8591292B2 (zh)
EP (1) EP2349642B1 (zh)
CN (1) CN102239029B (zh)
DE (1) DE102008055797A1 (zh)
WO (1) WO2010051964A1 (zh)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11931851B2 (en) 2019-10-23 2024-03-19 Black & Decker Inc. Pole sander

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CN107150291A (zh) * 2017-06-20 2017-09-12 成都赋阳技术开发有限公司 用于建筑装修装饰的无尘式墙面打磨机
CN107617940A (zh) * 2017-09-13 2018-01-23 北京世纪明达建设有限公司 一种侧吸式打磨抛光机头
CN108942466A (zh) * 2018-08-29 2018-12-07 无为欧米伽智能科技有限公司 一种手持式磨墙机
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CN110421428B (zh) * 2019-06-22 2023-08-08 深圳市河图建设项目管理有限公司 一种房屋建筑用磨墙装置
CN110685450B (zh) * 2019-10-11 2021-12-14 南昌科悦企业管理咨询有限公司 一种环保型涂料无尘剥离装置
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CN110757307A (zh) * 2019-10-31 2020-02-07 中船黄埔文冲船舶有限公司 一种打磨装置
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US8591292B2 (en) 2013-11-26
CN102239029B (zh) 2014-08-20
WO2010051964A1 (de) 2010-05-14
CN102239029A (zh) 2011-11-09
DE102008055797A1 (de) 2010-05-06
US20110183587A1 (en) 2011-07-28
EP2349642A1 (de) 2011-08-03

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