• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    24 ABSTRACT The present disclosure provides a floor grinding machine (1) forgrinding floor surfaces of stone or stone-like material. The machine comprisesa machine frame (2), a grinding head (3), supported by the machine frame(2), a motor (4), supported by the machine frame (2) and operativelyconnected to the grinding head (3), and a handle frame (5), extending fromthe machine frame (2), and pivotable relative to the machine frame (2). Themachine further comprises a guide member (12), which is pivotable relative tothe machine frame (2) and pivotable relative to the handle frame (5), a firstIocking device (14), for Iocking the guide member (12) relative to the handleframe (5), and a second Iocking device (13), for Iocking the guide member(12) relative to the machine frame (2). The disclosure further provides a handle for a floor grinding machineas well as methods of setting a position of a handle and methods of steering afloor grinding machine. (Fig. 1)
    公开号:SE1650786A1
    申请号:SE1650786
    申请日:2016-06-03
    公开日:2017-12-04
    发明作者:Andersson Fredrik；Käcker David；Fogelberg Andreas
    申请人:Htc Sweden Ab；
    IPC主号:
    专利说明:

    FLOOR GRINDING MACHINE. HANDLE FOR FLOOR GRINDING MACHINEAND METHOD OF SETTING A HANDLE FOR A FLOOR GRINDINGMACHINE Technical field The present disclosure relates to floor grinding machines, and inparticular to floor grinding machines adapted for grinding floors of stone orstone-like materials, such as limestone, sandstone, marble, slate, granite, COFICFGIIG OI' IIGITQZZO.
    BackgroundFloor grinding machines are known and used in polishing or grinding floor surfaces, either with the purpose of producing a level and/or glossy floorsurface, or with the purpose of renovating such a surface which hasdeteriorated due to e.g. wear, or which has been damaged.
    A floor grinding machine for this type of grinding typically comprises amachine frame, which carries a motor that is operatively connected to agrinding head. ln a particular class of floor grinding machines, such a grinding headmay be rotatable relative to the machine frame. The grinding head may carrya plurality of grinding disks, each of which may be rotatable relative to thegrinding head. Such a grinding head is typically referred to as a planetarytype grinding head.
    These floor grinding machines are usually equipped with grindingelements in the form of bonded abrasives, i.e. abrasives in the form of athree-dimensional body comprising abrasive particles and a matrix material,which may be a polymer material or a metallic material. As another option, themachines may be equipped with cutting elements, adapted, for example forremoval of glue, paint, lacquer or other surface treatments from a floor su rface. 2 The machine may typically be supported by its grinding head and oftenalso by a pair of wheels, which may be arranged behind the grinding head, asseen in a fon/vard direction of the machine. Optionally, the machine may alsobe supported by one or more further wheels, which may be used to controlthe pressure exerted by the grinding head on the floor.
    The pair of wheels may be driven. Optionally, they may be individuallydrivable, such that a direction of travel of the machine may be controlled.
    The floor grinding machine may comprise a handle, which is connectedto the frame and provides possibility for the operator to hold, push, pull and/orsteer the machine.
    Typically, the handle comprises a handle frame, which may beadjustable relative to the machine frame. The handle frame may comprise ahandle bar and a user interface, which may include buttons, levers and/orindicators, such as lamps, gauges or displays.
    One example of a known machine of this type is disclosed inWOO3076131A1.
    An ergonomic floor grinding machine for users with different bodyconditions, such as height, arm length and strength, is needed.
    Further, the floor grinding machine is big in size, which is notconvenient when it is not in use, for example when it is to be stored ortransported.
    Therefore, there remains a need for an improved floor grindingmachine, which can at least partly alleviate above drawbacks.
    SummaryAn object of the present disclosure is to provide an improved floor grinding machine for grinding floor surfaces of stone or stone-like materials.A particular object is to provide a floor surfacing machine which isimproved in terms of ergonomics while being compact enough to enable it to be stored or transported. 3 The invention is defined by the appended independent claims, withembodiments being set forth in the appended dependent claims in thefollowing description and in the attached drawings.
    According to a first aspect, there is provided a floor grinding machinefor grinding floor surfaces of stone or stone-like material. The machinecomprises a machine frame, a grinding head, supported by the machineframe, a motor, supported by the machine frame and operatively connected tothe grinding head, and a handle frame, extending from the machine frame,and pivotable relative to the machine frame. The machine further comprises aguide member, which is pivotable relative to the machine frame and pivotablerelative to the handle frame, a first locking device, for locking the guidemember relative to the handle frame, and a second locking device, for lockingthe guide member relative to the machine frame.
    The floor materials may have a Knoop hardness of more than 130,preferably more than 135 or 140, and may thus comprise stone or stone-likematerials, such as limestone, sandstone, marble, slate, granite, concrete orterrazzo.
    By using first and second locking devices, it is possible to provide ahandle with a memory function, such that the handle quickly can be broughtto/from a preferred working position from/to a transport or storage position.
    The guide member may be pivotable relative to the machine framecoaxially with the handle frame.
    As an alternative, the guide member may be pivotable relative to themachine frame about a first axis and the handle frame is pivotable relativeguide member about a second axis. The first and second axes are spacedfrom each other with a distance of less than 50 °/> of length of handle frame,preferably less than 30 °/°.
    The floor grinding machine may further comprise a pivot angle limitingdevice.
    The pivot angle limiting device may limit the pivoting movementbetween the guide member and one of the machine frame and the handle frame. 4 The first locking device may provide a continuum of relative positionsbetween the handle frame and the guide member.
    The second locking device may provide a continuum of relativepositions between the machine frame and the guide member.
    Alternatively, or as a supplement, the first locking device may provideat least two fixed relative positions between the handle frame and the guidemember. l/loreover, the second locking device may provide at least two fixedrelative positions between the machine frame and the guide member.
    One of the locking devices may provide a smaller angle between a pairof adjacent fixed positions than the other one.
    One of the locking devices may provide a greater angle differencebetween extreme positions than the other one.
    The handle frame may be pivotable relative to the machine framebetween at least one transport position and at least one working position.
    The transport position may be located such that a movement from theworking position to the transport position comprises lifting the handle frameupwardly.
    The transport position may be located such that a movement from theworking position to the transport position comprises lowering the handleframe.
    The handle frame may carry a user interface.
    According to a second aspect, there is provided a method for setting aposition of a handle of a floor grinding machine for grinding floor surfaces ofstone or stone-like material. The method comprises setting a position of ahandle frame relative to a guide member, and setting a position of the guidemember relative to a machine frame. ln the method, setting a position of a handle frame relative to a guidemember may comprise pivoting the handle frame relative to the machineframe and relative to the guide member, and locking the handle frame relativeto the guide member. 5 ln the method setting a position of the guide member relative to amachine frame may comprise pivoting the handle frame with the guidemember relative to the machine frame, and locking the guide member relativeto the machine frame.
    The pivoting motions may be performed about axes which are spaced apart by less than 50 °/> of a length of the handle frame, preferably by less than 30 °/-.~ and most preferably about axes that are coaxial, or even the same.
    According to a third aspect, there is provided a handle for a floorgrinding machine for grinding floor surfaces of stone or stone-like material.The handle comprises an attachment portion, by which the handle isattachable to a handle frame of the machine, a first cross portion, extendinglaterally at least on one side of the attachment portion and having a widthsufficient for it to be gripped by a user”s hand, a second cross portion,extending substantially parallel with, and spaced from, the first cross portionand having a width sufficient for it to be gripped by a user”s hand. ln this context, “substantially parallel” means coplanar, i.e. coplanar +/-less than 15°, preferably less than +/- less than 10° or +/- less than 5°.
    Such width may be on the order of 10-20 cm on each side of theattachment portion.
    The second cross portion may be spaced from the first cross portion ina direction substantially opposite to a fon/vard moving direction of themachine.
    “Substantially opposite” means opposite +/- 20°, preferably +/- 10° or+/- 5°.
    The handle may further comprise a respective longitudinal member,extending substantially parallel with the forward moving direction of themachine on a respective side of the attachment portion and substantiallyperpendicular to the cross portions and providing respective bridges betweendistal portions of the first and second cross portions.
    By “substantially perpendicular” is meant perpendicular +/- 20°, preferably +/- 10° or +/- 5°. 6 The cross portions and the longitudinal members may be integratedwith each other.
    The term “integrated” may be understood as fixedly connected orformed in one piece.
    The handle may further comprise respective first vertical members,extending at an angle of O°-45°, preferably 10°-35°, in a plane containing aforward direction, and at an angle of O°-45° in a plane containing a machinelateral direction, from respective distal portions of the first cross portion.
    Preferably the first vertical members extend downwardly from the firstcross section.
    The handle may further comprise respective second vertical members,extending at an angle of O°-45°, preferably 10°-35°, in a plane containingforward direction, and at an angle of O°-45° in a plane containing machinelateral direction, from respective distal portions of the second cross portion.
    Preferably the second vertical members extend downwardly from thesecond cross section.
    The Iongitudinal members may extend from a respective distal portionof the first vertical members.
    The Iongitudinal members may extend from a respective distal portionof the second vertical members.
    The cross portions, the vertical members and the Iongitudinal membersmay be integrated with each other.
    A length of the longitudinal member may be equal to or shorter than alength of the first and the second cross portions.
    The attachment portion may comprise at least one rotation limitingmember, adapted to limit rotation of the handle when received in a handlemount.
    According to a fourth aspect, there is provided a floor grinding machinefloor grinding machine for grinding floor surfaces of stone or stone-likematerial, the machine comprising a handle as described above.
    The handle may be arranged in a first orientation with the first cross member in front of second cross member. 7 Alternatively, the handle may be arranged in a second orientation withthe second cross member in front of the first cross member. ln particular, the handle may be rotatable relative to a handle framebetween the first orientation and the second orientation.
    According to a fifth aspect, there is provided method for horizontallysteering a floor grinding machine for grinding floor surfaces of stone or stone-like material. The method comprises gripping by a user”s hand a first verticalmember of a handle of the machine, causing a wrist or lower arm portion,associated with the hand, to contact a second vertical member of the handle,which is substantially parallel to the first vertical member and spaced apartfrom the first vertical member in a direction of forward movement of themachine, and using the wrist or lower arm portion to apply a force directedsubstantially perpendicular to the direction of forward movement, such thatthe machine is caused to turn towards a direction opposite to the direction ofthe force.
    The method may further comprise gripping by the user”s second handanother first vertical member of the handle, causing a second wrist or lowerarm portion, which is associated with the second hand, to contact anothersecond vertical member of the handle, which is substantially parallel to theanother first vertical member and spaced apart from the another first verticalmember in the direction of forward movement of the machine, and using theanother wrist or lower arm portion to apply a second force directedsubstantially parallel to the direction of the force.
    According to a sixth aspect, there is provided a method for verticallysteering a floor grinding machine for grinding floor surfaces of stone or stone-like material. The method comprises gripping by a user”s hand a first crossportion of a handle of the machine, causing a wrist or lower arm portion,which is associated with the hand, to contact a second cross portion of thehandle, which extends substantially parallel with and spaced apart from thefirst cross portion in a direction substantially opposite to forward movement ofthe machine, and using the wrist or lower arm portion to apply a force directedsubstantially perpendicular to the direction of forward movement, such that 8 the machine is caused to tilt towards a direction opposite to the direction ofthe force.
    The method may comprise gripping by the user”s second hand the firstcross portion, causing a second wrist or lower arm portion, which isassociated with the second hand, to contact the second cross portion, andusing the another wrist or lower arm portion to apply a second force directedsubstantially parallel to the direction of the force.
    The cross portions may preferably be substantially coplanar, i.e.coplanar +/- less than 15°, preferably less than +/- less than 10° or +/- lessthan 5°. Grip of cross portion may be on respective sides of a mountingportion. ln the method, gripping by a user”s hand the first cross portion maycomprise placing the user”s two hands spaced apart from each other. ln the method, the user”s two wrist or lower arm portions may besubstantially parallel to each other.
    Brief description of the drawinos Figs. 1a-1d are schematic perspective views of a floor grindingmachine.
    Figs. 2a-2b schematically illustrate the guide member, the first lockingdevice, and the second locking device.
    Fig. 3a-3b schematically illustrate a part of the machine frameconnected to the guide member of Figs. 2a-2b.
    Fig. 4 schematically illustrates a handle frame head.
    Fig. 5 schematically illustrates a handle.
    Figs 6a-6d schematically illustrate an alternative locking device.
    Figs 7a-7b schematically illustrate the machine with the handle indifferent positions.
    Detailed descriptionFig. 1 schematically illustrates a floor grinding machine 1. The grinding machine 1 comprises a machine frame 2 which supports a grinding head 3and a motor 4. The grinding head 3 is driven by the motor 4 to rotate.
    The grinding head 3 may comprise a casing, which is rotatable inside ahood.
    The grinding head 3 as i|ustrated herein is formed as a planetary typegrinding head, i.e. the grinding head casing is rotatable relative to themachine frame 2, and in turn carries two or more grinding disks, each ofwhich being rotatable relative to the casing.
    The hood may be arranged to enclose the grinding head 3, such thatgrinding residues are contained and can be readily co|ected by e.g. acollection device as will be further described.
    The machine 1 may thus further comprise a collection device forcollecting grinding residues, such as dust, water and the like. The collectiondevice may comprise a hood connector, such that a space enclosed by thehood is in fluid connection with a dust collector, and optionally a channel,such as a hose or a pipe 10. A hose 10 leading to the dust collector, such asa vacuum cleaner, may be directly connectable to the hood connector, or tothe channel.
    The machine 1 may be supported by wheels, such as by a pair ofcoaxial wheels 8. The wheels may provide part of the support, with additional,or even most, support provided by the grinding head 3.
    The wheels 8 may be freely rotatable, whereby the machine 1 may bepropelled entirely by being pushed and/or pulled by the user.
    As another option, the wheels 8 may be driven by one or more motors.For example, the wheels may be individually drivable, whereby steering of themachine 1 by e.g. radio control may be enabled.
    The machine 1 may comprise a control unit, which containsfunctionality for controlling the machine 1 and/or feeding back information,such as setting a speed of the rotating discs, and reporting a temperature ofthe grinding discs.
    The machine 1 may further comprise a handle frame 5 extending froman upper rear portion of the machine frame 2. The handle frame 5 maysupport a handle 6 for a user to grip and/or steer the machine 1, andoptionally a user interface 7.
    The user interface 7 may comprise an output device, such as a display,which may be a touch screen, for displaying information. The user interfacemay further comprise one or more input devices, such as a touch screen,buttons, knobs and/or a keyboard for the user to control the machine 1.
    As indicated in Figs 1a-1d, the handle frame 5 is pivotable relative tothe machine frame 2. ln the illustrated example, the handle frame 5 ispivotable between four positions: a lower transport position (Fig. 1a), a loweroperating position (Fig. 1b), an upper operating position (Fig. 1c) and anupper transport position (Fig. 1d).
    The handle frame 5 may be continuously pivotable, or it may bepivotable between a number of fixed positions. ln the illustrated example, thehandle frame 5 is pivotable between four fixed positions, as illustrated in Figs1a-1d. l/loreover, the position of the handle frame may be possible to finetune. This may be done either continuously over a predetermined range, orover a number of fixed predetermined positions, as is illustrated in Fig. 2a.
    To this end, the machine 1 may comprise a guide member 12, which ispivotable relative to the machine frame 2 and also pivotable relative to thehandle frame 5.
    To secure the handle frame 5 relative to the guide memer 12, themachine 1 may comprise a first locking device 14, for locking the guidemember 12 relative to the handle frame 5.
    The locking device 14 may comprise a plurality of holes or recesses14a formed in the guide member 12, each corresponding to one of thepositions mentioned with reference to Figs 1a-1d, and a locking pin 14b,which is connected to the handle frame 5. ln the illustrated example, thelocking pin 14b is connected to the handle frame 5 by means of a spring,which biases the locking pin 14b towards the guide member 12. 11 lt is understood that a similar locking function may be achieved invarious ways, such as by means of a bolt, a snaplock device or the like.
    The machine 1 may further comprise a second locking device 13, forlocking the guide member 12 relative to the machine frame 2.
    The guide member 12 may be pivotable relative to the machine framecoaxially with the handle frame 5.
    The second locking device 13 may provide a continuum of relativepositions between the machine frame 2 and the guide member 12.
    Alternatively, the second locking device 13 may provide at least twopredetermined relative positions between the machine frame 5 and the guidemember 12. The predetermined relative positions may be provided by thelocking holes or recesses 13a, as illustrated in Figs 2a-2b and 3a-3b.
    The locking holes or recesses 13a may be formed along a curvefollowing a segment of a circle having its center at the axis of rotation aboutwhich the guide member 12 is pivotable.
    Optionally, a pivot limiting device 15 may be provided, and maycomprise a slit 15a, which together with a guide pin 15b limits the maximumangle of rotation of the guide member 12 relative to the machine frame 2.
    The second locking device may further comprise a second locking pin13b, which may be provided with a biasing device for biasing the locking pintowards the hole or recess 13a.
    With regard to the handle, the machine may function as follows.
    A position selected from, e.g., the four positions illustrated in Figs 1a-1d may be selected by moving the first locking pin 14b towards the right inFig. 2a, such that the first locking pin 14b is extracted from the hole or recess14a.
    The handle frame 5 may then be pivoted to the desired position. lf thepin 14b is held out of the hole or recess 14a, pivoting may be achieved all theway to the desired position. lf the pin 14b is released, then it may spring backinto the next hole or recess 14a, as soon as it reaches it.
    Once in the desired position, the pin 14b is allowed to rest in the holeor recess 14a. 12 lf this desired position is one of the operating positions, then it may bedesirable to fine tune the handle position.
    This can be done by pulling the second pin 13b out of its associatedhole or recess 13a. As the handle frame 5 is locked relative to the guidemember 12 by the first locking device 14, the handle frame 5 will now pivottogether with the guide member 12 until the pin 13b is released and allowedto spring back into the desired one of the holes or recesses 13a.
    By leaving the second locking device 13 in its locked position, it ispossible to again release the first locking device 14 and bring the handleframe 5 to one of the transport positions, in order to simplify transportation orstorage of the machine 1.
    When it is desirable to use the machine 1 again, the first locking device14 is again released, and the handle frame 5 is pivoted to the desiredposition. However, now, the handle frame 5 will be brought to the position ofthe second locking device 13, where this was previously set. Hence, thehandle frame 5 is effectively provided with a memory for the preferred settingof the handle frame 5.
    Fig. 4 illustrates a handle connection mechanism, which may be usedto connect the handle 6 to the handle frame 5. This connection mechanismmay essentially comprise a clamping device 11, which is used to clamp aattachment portion 6f of the handle 6.
    The attachment portion 6f may comprise a positioning device, arrangedto ensure that the handle 6, when received in the clamping device 11, isalways correctly oriented.
    This positioning device may also function as a rotation limiting device,which limits the possible positions between the handle 6 and the handleframe 5.
    For example, the rotation limiting device may comprise one or moreprotrusions extending from the attachment portion 6f, and being arranged tocooperate with corresponding supports or abutments in the clamping device1 1.
    One version of a handle 6 is illustrated in Fig. 5. 13 The handle 6 comprises an attachment portion 6f, by which the handle6 is attachable to a handle frame 5 of the machine 1. From the attachmentportion 6f, cross portions 6a extend laterally and substantially horizontallytowards both sides.
    A second cross portion 6b, which extends substantially parallel with thefirst cross portions 6a, is spaced from the first cross portions 6a in a forwardmovement direction of the machine 1. The spacing may be on the order of 10-30 cm, preferably 15-25 cm.
    The spaced apart cross portions 6a, 6b may be interconnected by oneor more other portions 6c-6e.
    The handle 6 may comprise respective first vertical members 6c, 6c”,6d, 6d”, extending less than +/-45° from the vertical direction, preferably lessthan +/-30° from the vertical direction, or less than +/-20° from the verticaldirection, from respective distal portions of the first cross portions 6a.
    The handle 6 may further comprise respective second verticalmembers 6d, extending less than +/-45° from the vertical direction, preferablyless than +/-30° from the vertical direction, or less than +/-20° from the verticaldirection, from respective distal portions of the second cross portion 6b.
    The first and second vertical members 6c, 6c”, 6d, 6d” may, but neednot, be parallel. The first vertical members 6c, 6c” may present a greaterangle to the vertical direction than the second vertical members 6d, 6d”. Theangle of the first vertical members 6c, 6c” may be more than 5° greater thanthat of the second vertical members 6c, 6c”, 6d, 6d”, preferably more than 10°or more than 15°.
    The handle 6 may comprises a respective longitudinally extendingmember 6e, 6e”, extending substantially parallel with the forward movingdirection of the machine on a respective side of the attachment portion 6f andsubstantially perpendicular to the cross portions and providing respectivebridges between distal portions of the first and second cross portions 6a, 6b.
    The cross portions 6a, 6b and the longitudinal members 6e, 6e” may beintegrated with each other. For example, the entire handle 6 may be formedfrom one piece of material, such as a tube or rod, which has been bent into 14 the desired shape, and ends of which may be joined together to form anendless member.
    Figs 6a-6d schematically illustrate a locking device comprising africtional locking device for preventing relative rotation between the machineframe 102 and the guide member 112, and a form based Iocking device forpreventing relative rotation between the handle frame 5 and the guidemember 112.
    Referring to Fig. 6a, there is illustrated a portion of a machine frame102 and a portion of the handle frame 5. There is also a guide member 112.
    A first Iocking device 14a, 14b is provided for locking the handle frame5 relative to the guide member 112. This locking device 14a, 14b is arrangedsubstantially as the one disclosed above, and includes a plurality of fixedposition recesses 14a and a pin 14b, which is biased towards the guidemember 112, such that it will enter the recesses 14a when aligned therewith.
    A second Iocking device 1131, 1132, 1133, 1134 is provided for lockingthe guide member 112 relative to the machine frame 102. This second lockingdevice comprises a lamellae package 1131 comprising a pair of lamellae sets1133, 1134. A first one 1133 of the lamellae sets is fixedly connected to themachine frame 102 and a second one of the lamellae sets is fixedlyconnected to the guide member 112. ln an area of overlap between lamellaefrom the different sets, lamellae from the respective sets are arrangedalternatingly, such that in the area of overlap, every second lamella belongsto the set 1133 attached to the machine frame 102 and the remaininglamellae belongs to the set 1134 attached to the guide member 112.
    Fig. 6b is a side view of the handle arrangement illustrated in Fig. 6a.
    Fig. 6c is a cross sectional view taken along line A-A in Fig. 6b. Fig. 6cillustrates the guide member 112 being provided with an axle portion 1121,which extends partially through the lamella package 1131, in an area ofoverlap between the lamellae sets 1133, 1134.
    A tensioner device, which is here illustrated as an excenter clamp1132, engages the axle portion 1121 so as to provide a clamping force along the axial direction and thus between the guide member 112 and the machineframe 102.
    Other types of tensioner devices may be used, such as nuts, bolts orthe like. l/loreover, the lamella package may be dispensed with, in which casethe guide member 112 may be clamped directly towards the machine frame102 using an axial tensioner as illustrated in Fig. 6c.
    Fig. 6d is a cross sectional view taken along line B-B in Fig. 6c andillustrates how the relative angle of rotation between the guide member andthe machine frame 102 may be limited. As illustrated, the maximum range ofangles may be on the order of O°-30°, preferably 15°-30° or about 20°.
    Hence, an angle limiting device may be provided in the form of a pin1122, which is slidable in a slit 1123 that is curved with a bending radiusabout the axle 1121. The pin 1122 may be attached to the guide member 112and the slit 1123 may be provided in the machine frame 102 and in thelamella package 1131. Alternatively, the pin 1122 may be attached to themachine frame 102 and the slit 1123 may be provided in the guide member112 and in the lamella package 1131.
    Referring back to Fig. 1b and Fig. 1c, it is noted that the handle 6 is ina position where it extends rearwardly from the handle frame 5. These areboth operating positions and are suitable to provide good leverage effectrelative to the machine 1, e.g. for turning and/or tilting.
    Referring to Figs 7a-7b, the handle 6 has instead been rotatedupwardly and forwardly relative to the handle frame 5, such that the first crossmember 6a and the attachment portion 6f are behind the second crossmember 6b, as seen in the machine longtitudinal direction, or in the forwarddirection.
    This position may be advantageous when it is desirable to walk moreclosely behind the machine 1, e.g. in order to get a better view of the grinding result.
    权利要求:
    Claims (40)
    [1] 1. A floor grinding machine (1) for grinding floor surfaces of stoneor stone-like material, the machine comprising: a machine frame (2), a grinding head (3), supported by the machine frame (2), a motor (4), supported by the machine frame (2) and operativelyconnected to the grinding head (3), and a handle frame (5), extending from the machine frame (2), andpivotable relative to the machine frame (2), characterised by a guide member (12), which is pivotable relative to the machine frame(2) and pivotable relative to the handle frame (5), a first Iocking device (14), for Iocking the guide member (12) relative tothe handle frame (5), and a second Iocking device (13), for Iocking the guide member (12)relative to the machine frame (2).
    [2] 2. The floor grinding machine as claimed in claim 1, wherein theguide member (12) is pivotable relative to the machine frame (2) coaxiallywith the handle frame (5).
    [3] 3. The floor grinding machine as claimed in claim 1, wherein: the guide member (12, 112) is pivotable relative to the machine frame(2, 102) about a first axis and the handle frame (5) is pivotable relative guidemember (12, 112) about a second axis, wherein said first and second axes are spaced from each other with adistance of less than 50 °/> of length of handle frame (5), preferably less than30 %.
    [4] 4. The floor grinding machine (1) as claimed in any one of thepreceding claims, further comprising a pivot angle limiting device (15a, 15b). 17
    [5] 5. The floor grinding machine (1) as claimed in claim 4, whereinthe pivot angle limiting device (15a, 15b) limits the pivoting movementbetween the guide member (12) and one of the machine frame (2) and thehandle frame (5).
    [6] 6. The floor grinding machine (1) as claimed in any one of thepreceding claims, wherein the first Iocking device (14) provides a continuumof relative positions between the handle frame (5) and the guide member(12).
    [7] 7. The floor grinding machine (1) as claimed in any one of thepreceding claims, wherein the second Iocking device (13) provides acontinuum of relative positions between the machine frame (2) and the guidemember (12).
    [8] 8. The floor grinding machine (1) as claimed in any one of claims1-5 or 7, wherein the first Iocking device (14) provides at least two fixedrelative positions between the handle frame (5) and the guide member (12).
    [9] 9. The floor grinding machine (1) as claimed in any one of claims 1-6 or 8, wherein the second Iocking device (13) provides at least two fixed relative positions between the machine frame (2) and the guide member (12).
    [10] 10. The floor grinding machine (1) as claimed in claim 8 or 9,wherein one of the Iocking devices (13) provides a smaller angle between apair of adjacent fixed positions than the other one (14).
    [11] 11. The floor grinding machine (1) as claimed in any one of thepreceding claims, wherein one of the Iocking devices (14) provides a greaterangle difference between extreme positions than the other one (13). 18
    [12] 12. The floor grinding machine (1) as claimed in any one of thepreceding claims, wherein the handle frame (5) is pivotable relative to themachine frame (2) between at least one transport position and at least oneworking position.
    [13] 13. The floor grinding machine (1) as claimed in claim 12, whereinthe transport position is located such that a movement from the workingposition to the transport position comprises lifting the handle frame (5) upwardly.
    [14] 14. The floor grinding machine (1) as claimed in claim 12, whereinthe transport position is located such that a movement from the workingposition to the transport position comprises lowering the handle frame (5).
    [15] 15. The floor grinding machine (1) as claimed in any one of thepreceding claims, wherein the handle frame (5) carries a user interface (7).
    [16] 16. A method for setting a position of a handle (5, 6) of a floorgrinding machine (1) for grinding floor surfaces of stone or stone-like material,the method comprising: setting a position of a handle frame (5) relative to a guide member (12),and setting a position of the guide member (12) relative to a machine frame (2)-
    [17] 17. The method as claimed in claim 16, wherein setting a position ofthe handle frame (5) relative to the guide member (12) comprises: pivoting the handle frame (5) relative to the machine frame (2) andrelative to the guide member (12), and locking the handle frame (5) relative to the guide member (12). 19
    [18] 18. The method as claimed in claim 16 or 17, wherein setting aposition of the guide member (12) relative to a machine frame (2) comprises: pivoting the handle (5) frame with the guide member (12) relative to themachine frame (2), and locking the guide member (12) relative to the machine frame (2).
    [19] 19. The method as claimed in claim 17 together with claim 18,wherein said pivoting motions are performed about axes which are spacedapart by less than 50 °/> of a length of the handle frame, preferably by less than 30 °/> and most preferably coaxially.
    [20] 20. A handle (6) for a floor grinding machine (1) for grinding floorsurfaces of stone or stone-like material, the handle (6) comprising: an attachment portion (6f), by which the handle (6) is attachable to ahandle frame (5) of the machine (1), a first cross portion (6a), extending laterally at least on one side of theattachment portion (6f) and having a width sufficient for it to be gripped by auser”s hand, a second cross portion (6b), extending substantially parallel with, andspaced from, the first cross portion (6a) and having a width sufficient for it to be gripped by a user”s hand.
    [21] 21. The handle (6) as claimed in claim 20, wherein the second crossportion (6b) is spaced from the first cross portion in a direction substantially opposite to a fon/vard moving direction of the machine.
    [22] 22. The handle (6) as claimed in claim 20 or 21, further comprising arespective longitudinal member (6e, 6e”), extending substantially parallel withthe forward moving direction of the machine on a respective side of theattachment portion (6f) and substantially perpendicular to the cross portions(6a, 6b) and providing respective bridges between distal portions of the firstand second cross portions (6a, 6b).
    [23] 23. The handle (6) as claimed in any one of claims 20-22, whereinthe cross portions (6a, 6b) and the longitudinal members (6e, 6e”) areintegrated with each other.
    [24] 24. The handle (6) as claimed in any one of claims 20-23, furthercomprising respective first vertical members (6c, 6c'), extending substantiallyat an angle of 0°-45°, preferably 10°-35°, in a plane containing a forwarddirection and at an angle of O°-45° in a plane containing a machine lateral direction, from respective distal portions of the first cross portion (6a).
    [25] 25. The handle (6) as claimed in any one of claims 20-24, furthercomprising respective second vertical members (6d, 6d”), extending at anangle of 0°-45°, preferably 10°-35°, in a plane containing forward direction andat an angle of O°-45° in a plane containing machine lateral direction, fromrespective distal portions of the second cross portion (6b).
    [26] 26. The handle (6) as claimed in any one of claims 20-25, whereinthe longitudinal members (6e, 6e”) extend from a respective distal portion ofthe first vertical members (6c, 6c”).
    [27] 27. The handle (6) as claimed in any one of claims 20-27, whereinthe longitudinal members (6e, 6e”) extend from a respective distal portion ofthe second vertical members (6d, 6d”).
    [28] 28. The handle (6) as claimed in any one of claims 20-27, whereinthe cross portions (6a, 6b), the vertical members (6c, 6c”; 6d, 6d”) and thelongitudinal members (6e, 6e”) are integrated with each other.
    [29] 29. The handle (6) as claimed in any one of claims 20-28, wherein alength of the longitudinal members (6e, 6e”) is equal to or shorter than alength of the first and the second cross portions (6a, 6b). 21
    [30] 30. The handle (6) as claimed in any one of the preceding claims,wherein the attachment portion comprises at least one rotation Iimitingmember, adapted to limit rotation of the handle when received in a handle mOUnt.
    [31] 31. A floor grinding machine (1) for grinding floor surfaces of stoneor stone-like material, the machine comprising a handle (6) as claimed in anyone of claims 20-30.
    [32] 32. The floor grinding machine (1) as claimed in claim 31, whereinthe handle (6) is arranged in a first orientation with the first cross (6a) memberin front of second cross member (6b).
    [33] 33. The floor grinding machine (1) as claimed in claim 31, whereinthe handle (6) is arranged in a second orientation with the second crossmember (6b) in front of the first cross member (6a).
    [34] 34. The floor grinding machine (1) as claimed in claim 32 togetherwith claim 33, wherein the handle (6) is rotatable relative to a handle frame(5) between the first orientation and the second orientation.
    [35] 35. A method for horizontally steering a floor grinding machine (1)for grinding floor surfaces of stone or stone-like material, the methodcomprising: gripping by a user”s hand a first vertical member (6c) of a handle (6) ofthe machine, causing a wrist or lower arm portion, associated with the hand, tocontact a second vertical member (6d) of the handle, which is substantiallyparallel to the first vertical member and spaced apart from the first vertical member in a direction of forward movement of the machine, and 22 using the wrist or lower arm portion to apply a force directedsubstantially perpendicular to the direction of forward movement, such thatthe machine is caused to turn towards a direction opposite to the direction ofthe force.
    [36] 36. The method as c|aimed in c|aim 35, further comprising: gripping by the user”s second hand another first vertical member (6c”)of the handle, causing a second wrist or lower arm portion, which is associated withthe second hand, to contact another second vertical member (6d”) of thehandle, which is substantially parallel to the another first vertical member andspaced apart from the another first vertical member in the direction of forwardmovement of the machine, and using the another wrist or lower arm portion to apply a second forcedirected substantially parallel to the direction of the force.
    [37] 37. A method for vertically steering a floor grinding machine forgrinding floor surfaces of stone or stone-like material, the method comprising: gripping by a user”s hand a first cross portion (6a) of a handle (6) of themachine, causing a wrist or lower arm portion, which is associated with the hand,to contact a second cross portion (6b) of the handle, which extendssubstantially parallel with and spaced apart from the first cross portion in adirection substantially opposite to forward movement of the machine, and using the wrist or lower arm portion to apply a force directedsubstantially perpendicular to the direction of forward movement, such thatthe machine is caused to tilt towards a direction opposite to the direction ofthe force.
    [38] 38. The method as c|aimed in c|aim 37, further comprising:gripping by the user”s second hand the first cross portion (6a), 23 causing a second wrist or lower arm portion, which is associated withthe second hand, to contact the second cross portion (6b), andusing the another wrist or lower arm portion to apply a second force directed substantially para|e| to the direction of the force.
    [39] 39. The method as claimed in claim 38, wherein gripping by a user”shand the first cross portion (6a) comprises piacing the user”s two hands spaced apart from each other.
    [40] 40. The method as claimed in claim 38 or 39, wherein the user”s two wrist or lower arm portions are substantially para|e| to each other.
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    同族专利:
    公开号 | 公开日
    CN109789527B|2021-05-07|
    CA3025982A1|2017-12-07|
    SE541067C2|2019-03-26|
    CN109789527A|2019-05-21|
    EP3463750B1|2021-10-27|
    EP3463750A2|2019-04-10|
    WO2017207721A3|2018-04-05|
    US20190193230A1|2019-06-27|
    WO2017207721A2|2017-12-07|
    AU2017272786B2|2022-01-27|
    AU2017272786A1|2019-01-17|
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    US1974136A|1931-03-21|1934-09-18|Porter Cable Machine Co|Abrading or surface finishing machine|
    CN2598845Y|2003-01-02|2004-01-14|陈凯心|Folding fixed device for long handle-bar for bicycle|
    AU2014392785B2|2014-04-30|2019-01-17|Husqvarna Ab|Floor grinding machine|
    CN204548356U|2015-03-06|2015-08-12|东莞市乐和智能科技有限公司|A kind of new type foldable structure|
    CN105150041A|2015-09-18|2015-12-16|中山鑫辉精密技术股份有限公司|Ground grinder with handles convenient to adjust|CN112548720A|2020-12-07|2021-03-26|李朝阳|Automatic navigation operation method, device and system of intelligent building floor grinding machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1650786A|SE541067C2|2016-06-03|2016-06-03|Floor grinding machine and method of setting a handle for a floor grinding machine|SE1650786A| SE541067C2|2016-06-03|2016-06-03|Floor grinding machine and method of setting a handle for a floor grinding machine|
    CA3025982A| CA3025982A1|2016-06-03|2017-06-01|Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine|
    PCT/EP2017/063373| WO2017207721A2|2016-06-03|2017-06-01|Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine|
    EP17728519.4A| EP3463750B1|2016-06-03|2017-06-01|Floor grinding machine, handle for floor grinding machine and method of setting the position of a handle of a floor grinding machine|
    US16/306,066| US20190193230A1|2016-06-03|2017-06-01|Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine|
    AU2017272786A| AU2017272786B2|2016-06-03|2017-06-01|Floor grinding machine, handle for floor grinding machine and method of setting a handle for a floor grinding machine|
    CN201780034496.6A| CN109789527B|2016-06-03|2017-06-01|Floor grinder, handle for floor grinder and method for setting handle of floor grinder|
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