EP2492050A1 - Dispositif de traitement de surface avec au moins une charnière pour une suspension flexible de l'unité de l'outil et moteur et/ou à faciliter le traitement à proximité du mur - Google Patents
Dispositif de traitement de surface avec au moins une charnière pour une suspension flexible de l'unité de l'outil et moteur et/ou à faciliter le traitement à proximité du mur Download PDFInfo
- Publication number
- EP2492050A1 EP2492050A1 EP11155908A EP11155908A EP2492050A1 EP 2492050 A1 EP2492050 A1 EP 2492050A1 EP 11155908 A EP11155908 A EP 11155908A EP 11155908 A EP11155908 A EP 11155908A EP 2492050 A1 EP2492050 A1 EP 2492050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- utility tool
- hinge
- motor
- frame
- tool
- 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.)
- Ceased
Links
Images
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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
Definitions
- the invention relates generally to surface treatment apparatuses, more particularly to apparatuses used for polishing, grinding, sanding or otherwise treating surfaces such as concrete or wooden floors.
- the apparatus comprises a frame having supporting wheels and a motor and utility tool assembled on the frame, wherein the wheel basis is as broad as or even broader than the diameter of the utility tool.
- this design allows for a good stability and steering of the apparatus, it makes it impossible to treat the edges of a floor along a wall part. Indeed, there is no possibility to drive the apparatus along a wall and closer to the wall than the wheel basis allows for.
- parts of the floor left untreated by the above-described apparatuses are to be treated by handhelds such as described in for example US 5,788,561 .
- grinding or sanding surfaces with a handheld apparatus is, to a same extent as with a heavier and larger treatment apparatus as described above, very difficult, more expensive and time consuming even for experienced craftsmen.
- the present invention concerns a surface treatment apparatus, in particular an apparatus for polishing, grinding and/or sanding floors, the apparatus comprising:
- the at least two members are connected by a hinge extending perpendicular in view of a drive shaft of the utility tool (so as to allow rotation of the longitudinal axis of a drive shaft of the utility tool versus the surface to be treated).
- the at least two members are connected by a hinge extending parallel in view of a drive shaft of the utility tool.
- the frame comprises at least a third member that is connected to the first member by a hinge extending perpendicular in view of a drive shaft of the utility tool and that is connected to the second member by a hinge extending parallel in view of a drive shaft of the utility tool or vice versa.
- the second frame member has a front and a back end, the back end being connected to said hinge and the utility tool being mounted near or at the front end of this second member.
- the motor is preferably mounted near or at the back end of the second member.
- the second member further preferably comprises means for adjusting the downward pressure on the front end of the second member.
- means for adjusting the downward pressure on the front end of the second member can for example comprise a slot or shaft provided on the second member and configured for releasably providing weight elements thereon.
- damping means are provided between the first and second members.
- the damping means can for example comprise damped bushings for said hinge.
- the apparatus may further comprise an actuating lever, said lever being fixed to the frame.
- the first frame member has a back end and a front end, whereby the hinge between the first and second member is provided at a distance of the front end of the first member and wherein, at a position towards the front end in view of the hinge, an abutment surface is provided on the first member, said abutment engaging the second frame member when hinging the first and second member in a predetermined direction over a predetermined angle such as to limit the hinging of the first and second member in the predetermined direction of rotation.
- the apparatus comprises exactly one utility tool, the tool preferably having a diameter ranging from 5 to 70 cm measured perpendicularly in view of the driving shaft of said tool.
- Figure 1 represents an apparatus according to the present invention, said apparatus comprising a frame 1 with an actuating lever 2, two wheels 3, a motor 4 and a utility tool 5.
- the frame comprises at least two and in this particular case three members 6, 7 and 8.
- the first frame member 6 comprises a U-shaped rigid profile with a lateral beam 9 and two side beams 10 provided thereon.
- each of said beams is in this case provided with a hole 11 at a distance of its front end.
- the lateral beam is situated at the back end of the apparatus; it is the back end of the apparatus defined in view of a usual driving direction D during use of the apparatus.
- Said wheels 3 are movably, in particular rotatably or otherwise pivotably connected to the first member by a wheel shaft 12 or the like supported in the side beams 10.
- the actuating lever 2 is also fixed to the first member 6.
- the second member 7, essentially consisting of a rigid plate element with a front end 13 and a back end 14. Both said motor 4 and utility tool 5 are mounted by means of bolts or the like.
- the motor is mounted on one surface of the plate element, whereas the utility tool extends from the opposite surface of the plate element. In use, the utility tool extends downwards, whereas the motor is mounted on the top surface of the plate.
- the motor 4 is mounted near or at the back end 14 of the second member 7, whereas the utility tool 5 is mounted near or at the front end 13 of the second member 7.
- the motor 4 comprises a motor shaft (not shown) extending perpendicularly through a protrusion in the plate element, whereas the utility tool 5 has a driving shaft (not shown) extending parallel to the motor shaft. Both shaft are connected in rotation by a belt, preferably a toothed belt 15.
- the third member 8 in this case comprises a plate element having two upstanding protrusions 16, wherein a hinge shaft 17 is rotatably lodged, the hinge shaft extending through damped bushings (not shown) lodged in holes 11 provided in the side beams 11 of the first frame member 6.
- the third frame member further comprises a hole (not shown) where through the motor shaft extends and one or more slits 18 near its circumference.
- the back end 14 of the second member 7 rests on the third member 8, whereby the interface defined between the second and third member 7, 8 is provided with a lubricant oil or a lubricant coating for allowing rotation or hinging of the second member over the first member in a direction perpendicular to the motor shaft.
- the utility tool 5 can be a polishing, a grinding, a sanding or other tool that typically comprises a disk defining a working surface 19 for acting on a surface to be treated.
- the working surface of the utility tool is defined by a certain roughness and/or abrasive capacity for grinding, sanding, polishing or otherwise treating a given surface.
- the disk is mounted on the driving shaft of the utility tool and is generally known in the field of treating surfaces such as floors. Preferred disks have a diameter ranging between 5 and 70 cm.
- the apparatus according to the present invention is very user friendly, especially due to the hinge provided between the first and second frame members 6 and 7.
- the hinge shaft 17 provided between the first and third frame members allows for an automatic adjustment of the plane formed between the defined by the bottom of the wheels 3 and the working surface 19 of the utility tool in view of a surface to be treated.
- said hinge shaft allows rotation of the utility tool 5 and especially of the working surface 19 thereof in view of the first frame member in a direction perpendicular to the surface to be treated an automatic positioning of the working surface of the utility tool in view of the surface to be treated is obtained, thereby ensuring that the working surface 19 of the utility tool is and remains parallel to the surface to be treated during use of the apparatus.
- the second frame member 7 further comprises means for adjusting the downward pressure on the front end 13 of the second member.
- Such means can for example comprise a slot or shaft provided on the second member and configured for releasably providing weight elements thereon. Adjustment of the pressure exerted on the front end of the second member 7 and thus on the utility tool, allows for an increased control of the grinding, sanding and/or polishing by the utility tool.
- the motor is preferably provided near or at the back end of the second member, proximate to the connection of the first and second members 6, 7. As such, the weight of the motor 4 is essentially supported by the supporting wheels 3 rather than by the utility tool 5 during use of the apparatus.
- the apparatus can easily be tilted by pressing down the actuating lever in a direction according to arrow P.
- the first and second member will first hinge in view of each other around the hinge shaft 17, until the front end of the side beams of the first member will abut the second or third member thereby preventing further hinging of the second member in view of the first member and lifting the second member when pressing the actuating lever further downwards.
- the distance between the hole 11 for the hinge shaft 17 and what is defined as the abutment surface 20 of the beams with the second member 7 or third member 8 (both are rigidly fixed to each other in a direction of rotation around the hinge shaft 17) determines the limitation on the angle of rotation between the first and second members 6, 7.
- the rotation between the second and third members 7, 8 around the motor shaft can be blocked by means of bolts (not shown) or such interacting in the slits 18 in the second frame member 7.
- the utility tool When releasing said bolts, a rotation of the second member around the motor shaft and in view of the first member is obtained.
- the utility tool can be hinged or rotated in a sideward direction in view of the wheels of the apparatus, thereby allowing the utility tool to be positioned next to the wheels, ie not between the wheels, in view of the driving direction D of the apparatus.
- Such rotation therefor allows to drive the apparatus over a surface to be treated along a wall, while the utility tool is in very close proximity of the wall, while the wheels remain at a certain distance of the wall, yet rotating parallel to said wall.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11155908A EP2492050A1 (fr) | 2011-02-24 | 2011-02-24 | Dispositif de traitement de surface avec au moins une charnière pour une suspension flexible de l'unité de l'outil et moteur et/ou à faciliter le traitement à proximité du mur |
PCT/EP2012/053131 WO2012113899A1 (fr) | 2011-02-24 | 2012-02-24 | Appareil de traitement de surface |
EP12710174.9A EP2704874A1 (fr) | 2011-02-24 | 2012-02-24 | Appareil de traitement de surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11155908A EP2492050A1 (fr) | 2011-02-24 | 2011-02-24 | Dispositif de traitement de surface avec au moins une charnière pour une suspension flexible de l'unité de l'outil et moteur et/ou à faciliter le traitement à proximité du mur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2492050A1 true EP2492050A1 (fr) | 2012-08-29 |
Family
ID=44342884
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11155908A Ceased EP2492050A1 (fr) | 2011-02-24 | 2011-02-24 | Dispositif de traitement de surface avec au moins une charnière pour une suspension flexible de l'unité de l'outil et moteur et/ou à faciliter le traitement à proximité du mur |
EP12710174.9A Withdrawn EP2704874A1 (fr) | 2011-02-24 | 2012-02-24 | Appareil de traitement de surface |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12710174.9A Withdrawn EP2704874A1 (fr) | 2011-02-24 | 2012-02-24 | Appareil de traitement de surface |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP2492050A1 (fr) |
WO (1) | WO2012113899A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110076644A (zh) * | 2019-05-10 | 2019-08-02 | 广东中星体育设施有限公司 | 运动场翻新无损基础设备 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2301164A (en) * | 1940-05-13 | 1942-11-03 | Mall Arthur William | Floor grinder |
US4783872A (en) * | 1986-11-25 | 1988-11-15 | The 3J Company | Floor and baseboard treating machine |
WO1998021412A1 (fr) * | 1996-11-13 | 1998-05-22 | Bartell Industries Inc. | Machine a meuler servant a enlever des marquages sur des surfaces revetues et meule correspondante |
US5788561A (en) | 1996-01-11 | 1998-08-04 | Pearl Abrasive Co. | Apparatus for grinding floor surfaces and/or cutting grooves in floors |
DE29921287U1 (de) * | 1999-12-01 | 2000-03-30 | Mks Funke Gmbh | Maschine zum Stirnschleifen oder Stirnpolieren von ebenen Flächen |
US20070232207A1 (en) * | 2001-07-23 | 2007-10-04 | On Floor Llc | Floor finishing machine |
KR20090110018A (ko) * | 2008-04-17 | 2009-10-21 | 전인택 | 코너 작업이 용이한 연삭기. |
-
2011
- 2011-02-24 EP EP11155908A patent/EP2492050A1/fr not_active Ceased
-
2012
- 2012-02-24 WO PCT/EP2012/053131 patent/WO2012113899A1/fr active Application Filing
- 2012-02-24 EP EP12710174.9A patent/EP2704874A1/fr not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2301164A (en) * | 1940-05-13 | 1942-11-03 | Mall Arthur William | Floor grinder |
US4783872A (en) * | 1986-11-25 | 1988-11-15 | The 3J Company | Floor and baseboard treating machine |
US5788561A (en) | 1996-01-11 | 1998-08-04 | Pearl Abrasive Co. | Apparatus for grinding floor surfaces and/or cutting grooves in floors |
WO1998021412A1 (fr) * | 1996-11-13 | 1998-05-22 | Bartell Industries Inc. | Machine a meuler servant a enlever des marquages sur des surfaces revetues et meule correspondante |
DE29921287U1 (de) * | 1999-12-01 | 2000-03-30 | Mks Funke Gmbh | Maschine zum Stirnschleifen oder Stirnpolieren von ebenen Flächen |
US20070232207A1 (en) * | 2001-07-23 | 2007-10-04 | On Floor Llc | Floor finishing machine |
KR20090110018A (ko) * | 2008-04-17 | 2009-10-21 | 전인택 | 코너 작업이 용이한 연삭기. |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110076644A (zh) * | 2019-05-10 | 2019-08-02 | 广东中星体育设施有限公司 | 运动场翻新无损基础设备 |
CN110076644B (zh) * | 2019-05-10 | 2020-11-13 | 广东中星体育设施有限公司 | 运动场翻新无损基础设备 |
Also Published As
Publication number | Publication date |
---|---|
WO2012113899A1 (fr) | 2012-08-30 |
EP2704874A1 (fr) | 2014-03-12 |
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Effective date: 20120916 |