EP1523397A1 - Schleifhandwerkzeugmaschine - Google Patents
SchleifhandwerkzeugmaschineInfo
- Publication number
- EP1523397A1 EP1523397A1 EP03709600A EP03709600A EP1523397A1 EP 1523397 A1 EP1523397 A1 EP 1523397A1 EP 03709600 A EP03709600 A EP 03709600A EP 03709600 A EP03709600 A EP 03709600A EP 1523397 A1 EP1523397 A1 EP 1523397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- machine tool
- grinding
- sheet
- tool according
- 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.)
- Granted
Links
- 239000012858 resilient material Substances 0.000 claims abstract 2
- 238000013016 damping Methods 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
- B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material
Definitions
- the invention relates to a hand-held grinding machine tool according to the preamble of claim 1.
- an orbital sander with a sanding plate for receiving sanding sheets which is supported with its back against the underside of the sanding plate and can be clamped firmly on the upper side thereof.
- the operator To clamp the sanding sheets, the operator must use both hands, whereby the handheld power tool should be placed on a firm surface, if possible.
- the one end of the sanding sheet is to be inserted with one hand into a slot between an open jaw and the top of the sanding sheet carrier and the jaw is to be held open with the other hand until the end of the sanding sheet is inserted. Then, after letting go the jaw, it closes by spring force. This is the clamping position in which the end of the sanding sheet is fixed.
- the sanding sheet is automatically retightened to a certain extent by the rotatably suspended clamping jaw trying to roll away from the end of the sanding sheet and taking it with it - due to an oblique pressure surface on the top of the sanding sheet carrier.
- the other end of the grinding wheel is to be handled in the same way as the first, with the clamping force and the clamping force of the clamping means being limited.
- the hand-held grinding machine tool according to the invention with the characterizing features of claim 1 has the advantage of particularly convenient, quick clamping in conjunction with tight clamping of the grinding sheet with only one hand with simplified manufacture of the clamping means at lower costs and with great weight savings. This results in a higher stock removal rate and a higher overall efficiency of the hand-held grinding machine tool.
- the end of the sanding sheet - also with just one hand - can be inserted into the clamping device and then tightened to the tear limit, the sanding sheet is fast and safe against incorrect operation between the two clamping points and on the working surface of the sanding pad. can be fixed so that it is taut and a relative movement between the sanding sheet holder and the sanding sheet can be largely excluded during sanding.
- the fact that the slot that clamps the first sanding sheet can be opened by means of a single, central, easy-to-find control button for loosening the sanding sheet means that the hand grinder is particularly easy to use.
- one of the gill means is designed as pliers, between the clamping jaws of which an end of the sanding sheet can be clamped, and that the tong, together with the clamped end of the sanding sheet, can be moved about a pivot axis and can be locked in an end position, can be securely clamped with simple means using subsequent means Tensioning the sanding sheet easily and reliably accessible.
- the pliers have the advantage that sanding sheets of any thickness can be clamped with maximum clamping force, because all dimensional differences can be sensitively compensated for through a long closing path, whereby a previously unattainable high clamping force can be achieved.
- the hand-held power tool can be equipped with - within limits - differently long sanding sheets, because even a long overhang can easily enter between the open, half-ring or bow-shaped active clamping jaw and the passive clamping jaw and can be easily accommodated therein.
- the passive clamping jaw is designed as a corrugated spring plate, which is deformable like a hinge around a bending area and whose one end is clamped like a beam on the housing and whose free end carries a friction lining, in particular rubber, is the desired flat spring characteristic (small force / Path ratio) at extreme short length of the passive clamping jaw can be reached to save space.
- the passive clamping jaw viewed from the free end, initially rises from right to left as a sine curve with a subsequent half sine curve of smaller amplitude, the corrugated spring plate can be reliably tensioned with the desired spring force.
- Clamping lever is, one of which has a lever arm as a handle, which can be releasably locked in the clamping position, and because the pliers can be pivoted about the pivot axis between two end positions that define the clamping and releasing position, it is equipped with one Sanding sheet particularly easy.
- the clamping lever can be pivoted into its holding position by means of a barb-like latching hook that is curved inwards towards the housing, the three pliers can be locked particularly comfortably and reliably by pressing the clamping lever vertically, or it can be released in a fail-safe manner by self-pressing towards the housing ,
- the clamping force at the end of the sanding sheet to be clamped can be determined by appropriate selection of the elastic means.
- the active clamping jaw is curved like a ring and that it grips around the passive clamping jaw in such a way that it is supported against the outside of the passive clamping jaw for clamping the sanding sheet and takes it with it when swiveling into the clamping position
- a defined spring characteristic of the active clamping jaw is achieved with its bow-shaped or arch-shaped design with a certain wire diameter, so that a maximum clamping force is established between the clamping jaws in the clamping position.
- the passive clamping jaw has a continuous longitudinal notch for the entry of the active clamping jaw, the grip between the passive clamping jaw and the sanding paper end is improved and the clamping force is further increased.
- One-hand operation here means that only one hand has to be active to insert and fix the sanding sheet.
- the other hand can fix the hand machine tool alone, e.g. press against a surface.
- the clamping servo effect is reinforced with increasing tensioning of the sanding sheet. This servo effect is also enhanced by the fact that the outer contour of the clamping jaw is progressively curved with a slight change in pitch. Because the clamping jaws are made of sheet metal or wire and have a rubber coating, they are easy to manufacture, light and reliable.
- collet or the active clamping jaw can be inserted into a groove in the housing and secured against loss by means of a screw that partially overlaps the groove means that a high function of the pliers is achieved with little effort when clamping the sanding paper.
- the sanding sheet does not have to be angled upwards or kinked for insertion into the slot, but can be extremely easy to find, so to speak "Blind", straight inserted loosely and then tightened.
- clamping lever is approximately 60 mm long and the active jaw has a lever length of approximately 20 mm means that the sanding sheet can be clamped comfortably and safely
- FIG. 1 is a side view of the grinding hand machine tool according to the invention with a clamping device
- FIG. 2 shows a top view obliquely from above of the sanding sheet carrier of a further embodiment of the grinding hand machine tool with clamping device
- FIG. 3 shows the bottom view according to FIG. 2
- Fig. 4 shows another embodiment of the grinding hand machine tool according to the invention
- FIG. 5 shows a spatial representation of the active clamping jaw made of wire as a detail.
- FIG. 6 shows an active clamping jaw end as a detail
- FIG. 7 shows an exemplary embodiment of the active clamping jaw end
- FIG. 8 shows another exemplary embodiment of the active clamping jaw end
- FIG. 9 shows an exemplary embodiment of a passive clamping jaw made of wire
- Figure 10 shows another embodiment of a collet of spring wire and spring plate
- Figure 11 shows the embodiment of Figure 11 with the collet open.
- FIG. 1 shows a hand-held grinding machine tool 10 (orbital sander) with a housing 12 which - not designated in more detail - has a handle on the outside and an electric motor on the inside.
- an abrasive sheet carrier 14 At the bottom of the housing 12 there is an abrasive sheet carrier 14, which can be set in vibration by the motor in relation to the housing 12 and can thereby achieve abrasive abrasion on a workpiece, not shown, with an abrasive sheet 16 held at the bottom of its working surface 15.
- the resulting grinding dust can be blown or sucked out from the front 121 to the rear 122 of the hand-held grinding machine tool 10 through the suction nozzle 120.
- the backing of the sanding sheet 16 is supported with its back on the underside of the sanding sheet carrier 14.
- a clamping means designed as a two-armed clamping lever 20 with a pivot axis 24 is arranged at the front on the upper side 13 of the grinding sheet carrier 14.
- the clamping lever 20 forms A pendulum arm 21 above the pivot axis 24 and a clamping jaw 22 below it. With its saber-shaped curved outer contour 27, this is supported on the latching surface 23 of the upper side 13 of the sanding sheet carrier 14.
- the pivot axis 24 of the clamping lever 20 is arranged on a bearing block 28 on the upper side of the sanding sheet carrier 14.
- a tension spring 26 is supported between the top of the pendulum arm 21 and an abutment in the housing 12, which can also be designed as a leg spring and which tries to pivot the clamping lever 20 in a clockwise direction, whereby it clamps the jaws 22 against the latching surface 23 presses and thus clamps the grinding wheel end 19.
- the pendulum arm 21 carries a single as
- Pushbutton 211 protruding contra-angle.
- the pendulum arm 21 can be moved downwards by finger, the tension spring 26 being tensioned.
- the jaws 22 lifts off the locking surface 23 and the gap between the outer contour 27 and the locking surface 23 opens so far that the end of the grinding wheel 19 is released and can be removed.
- the distance between the pivot axis 24 of the clamping lever 20 and the latching surface 23 is smaller than the distance between the pivot axis 24 and the radially outermost point of the outer contour 27, so that in the position of the clamping jaws 22 biased by the spring 26 against the latching surface 23 the top 13 of the abrasive sheet carrier 14 supports.
- the clamping force on the sanding sheet 16 increases in proportion to the forces which the sanding sheet 16 tries to release against the direction of insertion.
- the tension spring 26 is preloaded so little that the sanding sheet 16 can be tapped from the outside by lightly tapping on the surface. . .kontur 27 of the jaw 22 moves this against the clamping direction, creates the necessary gap for insertion itself and is easy to insert and push with one hand.
- the clamping jaw 22 consists at least partially of an elastic, rubber-like material with a high coefficient of friction, which restricts a relative movement between the sanding sheet 16 and the clamping jaw 22.
- a clamping-clamping device designed as pliers 34 is arranged on the rear side 122 of the grinding-sheet carrier 14.
- This consists of a clamping lever 35 with a curved active clamping jaw 36 and a handle 39 which forms a two-armed lever which can be pivoted about a pivot axis 40.
- the active jaw 36 is made of elastic material, e.g. Spring steel.
- a clamping lever 37 which forms the passive clamping jaw 38 and is supported on the inner contour of the active clamping jaw 36 when the grinding sheet 16 is clamped. Between the passive 38 and the active clamping jaws 36, the other end of the grinding wheel 17 opposite the grinding wheel end 19 is inserted and held.
- the clamping lever 35 In the clamping position of the pliers 34, the clamping lever 35 assumes an end position in which the handle 39 is locked in the locking groove 49 of the rear or side locking tab 48. By pushing the locking tab 48 back with the thumb or by pivoting the handle 39 against the spring 50 out of the locking groove 49, the clamping lever 35 is free and can be spring-biased back to its open position by the spring 42.
- the passive clamping jaw 38 - acted upon by a further compression spring 44 - follows it into its own end position.
- the clamping lever 35 pivots further spring-biased until its stop surface 51 abuts the upper side 47 of the passive clamping jaw 38.
- the pliers 34 are wide open and the distance between the active and passive clamping jaws 36, 38 is so great that it is possible to insert the sanding paper end 17 shown in dashed lines into the pliers 34 in a quasi-blind manner.
- the compression spring 44 prestressing the passive clamping jaws 38 determines or limits the clamping force between the active 36 and the passive clamping jaws 38.
- FIG. 2 shows a spatial representation of a further exemplary embodiment of the sanding sheet carrier 114 or the grinding hand machine tool 10 according to FIG. 1 as a top view obliquely from the front.
- a clamping lever 200 On the front side 121, on the right in the viewing direction, a clamping lever 200 is arranged, which essentially corresponds to that of FIG. 1, but has a separate actuation button 2110 which is pivotably mounted about an axis of rotation 610 in an abutment 600 and is elastically supported by a compression spring, not shown, against the housing, not shown.
- Push button 2110 towards the housing The part lying below the axis 610 swings outwards, being supported on the upper part of the clamping lever 200.
- this is pivoted outward in a clockwise direction, so that the clamping jaw 220 lifts off the latching surface 230 and an end of the sanding sheet clamped in between can be removed because there is no longer any clamping force.
- FIG. 2 reference is made to the parts of FIG. 1 that have the same effect and design.
- the reference numerals of the parts of FIG. 2 having the same effect are preceded by the first digit in each case in contrast to / correspond to the reference numerals of FIG. 1.
- the sanding sheet carrier 114 carries, in the viewing direction on the left on its rear side 122, a pair of pliers 334, which essentially corresponds to the pliers 34 explained in FIG. 1, but has a different design.
- a tensioning lever 335 for pivoting the pliers 334 is only arranged on one side of the sanding sheet carrier 114 and is resiliently latched on a stop 445 on this side.
- the pliers 334 are shown in a tensioned state, in which their clamping point or a sanding sheet end (not shown) is pivoted as far as possible from the clamping lever 200 on the opposite side of the sanding sheet carrier 114.
- FIG. 3 shows the details of the sanding sheet carrier 114 according to FIG. 2 obliquely from the rear below, the configuration tion of the active clamping jaw 336 in cooperation with the passive clamping jaw 338 becomes clear. These are supported against one another in the clamping position shown and can hold a sanding sheet end, not shown, clamped between them, pivoted away from the clamping lever 200, so that an associated sanding sheet can be tensioned so tightly that a relative movement of the sanding sheet relative to the working surface of the sanding sheet carrier 114 is minimized.
- the parts of the clamping lever 200 previously explained in relation to FIGS. 1 and 2 can be clearly seen and are not to be explained again here.
- the equipping of the grinding hand machine tool 10 according to FIG. 1 with an abrasive sheet 16 is explained below:
- the hand grinding machine 10 with the pliers 334 open is to be held with one hand.
- the first end of the grinding wheel 19 is to be inserted on the front of the hand-held grinding machine tool 10 on the clamping lever 20 by pressing it against the outer contour 27 of the clamping jaw 22. This forms between the jaws 22 and the locking surface
- the sanding sheet end 19 is inserted so far between the jaw 22 and the locking surface 23 that it protrudes about 5 mm behind it.
- the second sanding sheet end 17 is to be inserted and locked in the open pliers 34 arranged on the rear side of the sanding sheet carrier 14.
- the sanding sheet 16 is stretched tight. Since the clamping point of the pliers 1334 moves in a circular path about the pivot axis 410 away from the front of the grinding hand machine tool 10, the grinding sheet 16 is held tightly on the grinding sheet carrier 140 and can thus be used for grinding with high efficiency.
- the clamping lever 20 To remove the grinding sheet 16 from the hand-held grinding machine tool 10, the clamping lever 20 must be moved together with the pendulum arm 21 about the pivot axis 2.4 by pressing the key 211 as a horizontal extension.
- the outer jaw 27 of the clamping jaw 22 stands out from the sanding sheet 16 or from the latching surface 23 in such a way that the sanding sheet 16 can be easily and easily removed from the widening gap.
- FIG. 4 shows a top view of the sanding sheet holder 14 of a hand grinding machine tool 100 with a further embodiment of the sanding sheet clamping device 340, 500 according to the invention.
- Abrasive sheet carrier 14 can be seen, a swivel lever 500 being recognizable on its upper side, which, with its clamping jaws 510, presses down an abrasive sheet end 155 of an abrasive sheet 150 toward the upper side of the abrasive sheet carrier 14 and holds it there.
- the pivoting lever 500 can be pivoted against the spring force of a leg spring, not shown, in the release direction according to the movement arrow 560, upon reaching which the grinding wheel end 155 can be pulled out under the clamping jaw 510. If the pivot lever 500 on its handle lever 520 in the viewing direction to the left according to Moving arrow 550 pivoted, the sanding sheet end 155 is clamped. Since the pivoting lever 500 follows the sanding paper end 155 when it is pulled outwards, the sanding sheet is thereby clamped increasingly firmly.
- the grinding wheel end 155 on the left in the viewing direction is clamped on the rear of the grinding hand machine tool 1000 between a collet 340, which consists of an active jaw 360 and a passive jaw 380.
- the active clamping jaw 360 is formed by a wire bracket 370.
- This wire bracket 370 is approximately semicircularly curved - proceeding from the pivot axis 400 in the viewing direction to the left - whereby it forms the cross-web-like active clamping jaws 360 from a radially inwardly curved area at right angles to the outside or axially.
- This runs parallel to the rear transverse edge of the sanding sheet carrier 14 at a distance from it and, on the other side, passes mirror-symmetrically to the curved area of the wire bracket 370 into an identically semicircularly curved second area which is supported with its rear area on the top of the sanding sheet carrier 14.
- the spring clip 370 merges from its c-shaped curved area on its two symmetrical contact surfaces on the upper side of the sanding sheet carrier 14 in each case, bent approximately outward at a right angle parallel to the surface of the sanding sheet carrier 14, into an axle stub 410, each with a groove in each case 430 forms a pivot bearing about the pivot axis 400 between two bracket-like projections 440.
- the wire bracket 370 merges into a 90 ° bend on the outside. On the front side as viewed, it runs parallel to the longitudinal Axis 370 of the hand-held orbital sander 10 and forms a clamping lever 350 with a handle 390. On the rear side in the viewing direction, it forms a damping piece 355 Orbital sander 10 no relative movements between the wire bracket 370 and the sanding sheet carrier 14 occur. Vibrations and heavy noise when operating the orbital sander 10 are thus avoided.
- the tensioning lever 350 can be snapped onto the locking hook 450 in the tensioning position.
- the cross-web-like area of the active clamping jaw 360 is supported against a plastic, particularly non-slip, elastic contact surface 420 of the passive clamping jaw 380.
- the contact surface 420 of the passive clamping jaw 380 is formed from a rubber-like strip part that at the outer end of the passive clamping jaw designed as a flat spring
- the passive clamping jaw 360 runs parallel to the surface of the sanding sheet carrier 14 and is fixed thereon by being clamped under the foot-like end of the oscillating body 160.
- the passive clamping jaw 380 is designed as a flat spring, it does not require any special means, such as a hinge to define the pivot axis 400.
- the sanding sheet carrier 14 carries an sanding sheet clamping system which in principle corresponds to that according to FIG. 1.
- the pivot lever 500 is biased in its clamping position by a leg spring, not shown, instead of a tension spring.
- FIG. 5 shows a schematic illustration of the active clamping jaw 360 as an element bent from a single wire part.
- Figure 6 shows a further variant of the vibration damping of the second wire loop 370 'of the elastic in the clamping position between two damping jaws 655 is resiliently clamped so that' so that vibration and noise are suppressed.
- the damping jaws 650 are arranged on the upper side of the sanding sheet carrier 14.
- FIG. 7 shows a further variant for damping the vibration of the second wire bracket 370 by means of a leaf spring 660 which is supported on the outside of its curved periphery.
- the wire bracket 370 or the stub shaft 410 is held against the sanding sheet carrier 410 by its pretensioning and vibrations are suppressed.
- FIG. 8 shows a fourth variant for vibration damping of the second wire bracket 370 by means of a damping rubber 670 arranged around the outer stub shaft 410, on the obliquely arranged oblique surface 671 of which the wire bracket 370 is located supported in the clamping position and its vibrations are suppressed.
- FIG. 9 shows a further exemplary embodiment of a passive clamping jaw 700 as a detail, which, as in FIG. 4, does not consist of a flat spring 380, but of a U-shaped spring wire piece. Between its U-legs 710, the passive clamping jaw 700 carries on its arch a connecting piece 720 with a contact body 740 made of rubber or plastic, which has a contact surface 730 for contacting the passive clamping jaw 700
- the passive clamping jaw 700 carries a cross-piece-like connecting body 750, which is made of plastic or rubber and is penetrated by the U-legs 710.
- Ends 760 of the U-legs 710 which are curved in a circular manner, form screw eyelets, which are either overlapped by screws or the foot-like lower parts of the oscillating body 160 and can thus be fixed on the grinding-sheet carrier 14.
- FIG. 11 shows, almost identical to FIG. 1, a hand-held grinding machine tool 10 (orbital sander) with a housing 12 which - not designated in more detail - has a handle on the outside and an electric motor on the inside.
- abrasive sheet carrier 14 At the bottom of the housing 12 there is an abrasive sheet carrier 14, which can be set in motion in a motor-driven manner relative to the housing 12 and can thereby achieve abrasive abrasion on a workpiece, not shown, with an abrasive sheet 16 held at the bottom of its working surface 15.
- the resulting grinding dust can be blown or sucked out from the front 121 to the rear 122 of the hand-held grinding machine tool 10 through the suction nozzle 120.
- the backing of the sanding sheet 16 is supported with its back on the underside of the sanding sheet carrier 14.
- a clamping means designed as a two-armed clamping lever 20 with a pivot axis 24.
- a clamping-clamping device designed as pliers 34, which deviates from that according to FIG. 1 in that it consists of self-resilient parts made of wire or spring plate. It consists of a clamping lever 35 with multiple curved or arched active clamping jaws 36, which in principle corresponds to that according to FIG. 5, has only a slightly changed contour of the curved area. It has a handle 39 which forms a two-armed lever which can be pivoted about a pivot axis 40 which is formed by a groove on the upper side 13 of the sanding sheet carrier 14 and is secured in a simple manner by means of a screw 510.
- the active jaws 36 consist of bent spring steel wire. Likewise pivotable about the geometrical extension of the pivot axis 40 is a clamping lever 370 made of corrugated spring sheet which is supported on the inner contour of the active clamping jaw 36 when the grinding sheet 16 is being clamped and which forms the passive clamping jaws 38. Between the passive 38 and the active clamping jaws 36, the other grinding wheel end 17 opposite the first grinding wheel end 19 is inserted and held.
- Locking groove 49 of the side locking hook 48 is locked.
- the passive clamping jaw 38 springing back into its own end position acts on it and takes it into the “opened” position.
- the clamping lever 35 is up to a wide opening slot 500 (FIG.
- the flat spring 370 self-tensioning the passive clamping jaws 38 in the form of a one and a half times sine curve with a small amplitude range for the clamping point determines or limits the clamping force between the active 36 and the passive clamping jaws 38 in the tensioned state, whereby with a short construction of the flat spring 370 a very large clamping force at the same time good hinge function is achieved.
- the clamping lever 35 is released from its clamping position by disengaging the clamping hook 48 and swiveled about the axis 40 in a clockwise direction to change the sanding sheet, the distance between the clamping points of the sanding papers 17, 19 becomes shorter again. spans from the opening slot 500 is easily removed.
- FIG. 12 shows the horizontally arranged pliers 34 with the sanding hand machine tool 10 according to FIG. 11 opened with loosely inserted sanding paper 17.
- the active clamping jaw 36 approaches the passive clamping jaw 38 and takes on the sanding paper 17 due to high friction as Verdi - Covered rubber covering with towards the passive clamping jaw 38 and clamps it to it.
- the active clamping jaw 36 is pivoted further, it takes the passive clamping jaw with the clamped sandpaper end 17 along on its swivel path, tightens the sanding sheet 16 and holds it in the tightened position by the clamping lever 35 being locked on the clamping hook 48.
- the desired clamping position of the abrasive sheet 16 is thus established.
- the solution according to the invention is not limited to the arrangement of a self-locking lever system on the side opposite the pliers, so instead a conventional clamping lever system with spring preload can also be arranged.
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)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10232055A DE10232055A1 (de) | 2002-07-16 | 2002-07-16 | Schleifhandwerkzeugmaschine |
| DE10232055 | 2002-07-16 | ||
| PCT/DE2003/000379 WO2004016390A1 (de) | 2002-07-16 | 2003-02-13 | Schleifhandwerkzeugmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1523397A1 true EP1523397A1 (de) | 2005-04-20 |
| EP1523397B1 EP1523397B1 (de) | 2014-10-29 |
Family
ID=30010008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03709600.5A Expired - Lifetime EP1523397B1 (de) | 2002-07-16 | 2003-02-13 | Schleifhandwerkzeugmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7131899B2 (de) |
| EP (1) | EP1523397B1 (de) |
| CN (1) | CN100371132C (de) |
| DE (1) | DE10232055A1 (de) |
| WO (1) | WO2004016390A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA108958S (en) * | 2004-05-13 | 2006-01-18 | Nanjing Chervon Ind Co Ltd | Sander |
| USD532665S1 (en) * | 2004-11-27 | 2006-11-28 | Gmca Pty Ltd. | Biscuit jointer power tool |
| AU304459S (en) * | 2005-02-09 | 2005-11-29 | Bosch Gmbh Robert | Orbital sander |
| AU302738S (en) * | 2005-03-09 | 2005-08-10 | Power Box Ag | A power sander |
| USD559640S1 (en) * | 2005-05-19 | 2008-01-15 | Credo Technology Corporation | Palm grip sander |
| USD551526S1 (en) * | 2005-10-12 | 2007-09-25 | Robert Bosch Gmbh | Sander |
| TWD113975S1 (zh) * | 2005-10-12 | 2006-11-21 | 羅伯特博斯奇股份有限公司 | 砂磨機 |
| DE102006035977A1 (de) | 2006-08-02 | 2008-02-07 | Robert Bosch Gmbh | Schleifhandwerkzeugmaschine mit neuer Schleifblattzugspannung |
| CN201493733U (zh) * | 2009-08-03 | 2010-06-02 | 南京德朔实业有限公司 | 砂光机 |
| WO2013074735A1 (en) * | 2011-11-17 | 2013-05-23 | Black & Decker Inc. | Accessories for oscillating power tools |
| USD846962S1 (en) * | 2016-12-13 | 2019-04-30 | Festool Gmbh | Sanding and polishing machine |
| CN111360710B (zh) * | 2020-04-22 | 2025-01-24 | 郑伟 | 快速装夹砂纸的模型制作用多功能打磨板 |
| CN113664637B (zh) * | 2020-10-24 | 2024-07-05 | 湖南梨树园涂料有限公司 | 一种涂料墙分割线打磨定位装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2553254A (en) * | 1948-09-02 | 1951-05-15 | William B Hays | Sanding tool |
| US2670579A (en) * | 1952-03-31 | 1954-03-02 | Earl C Applegate | Hand tool |
| US2729925A (en) * | 1953-12-28 | 1956-01-10 | Earl C Applegate | Hand tools |
| US2914889A (en) * | 1955-07-28 | 1959-12-01 | Sundstrand Corp | Clamping device |
| US3349523A (en) * | 1965-05-17 | 1967-10-31 | Alma A Hutchins | Clip for sanding tool or the like |
| US3404493A (en) * | 1965-09-02 | 1968-10-08 | Eugene E. Thomas | Abrasive paper retaining clip |
| US3540161A (en) * | 1966-05-25 | 1970-11-17 | Wen Products Inc | Vibratory tool |
| US3822518A (en) * | 1972-09-07 | 1974-07-09 | Rodac Pneumatic Tools | Sanding shoe and clip therefor |
| US4030254A (en) * | 1976-03-05 | 1977-06-21 | Chicago Pneumatic Tool Company | Sanding shoe with removable clamping jaw |
| US4077165A (en) * | 1976-11-26 | 1978-03-07 | Hutchins Alma A | Abrading tool clip with automatic take-up |
| US4475317A (en) * | 1983-11-28 | 1984-10-09 | The Singer Company | Paper retainer for a sanding device |
| IT1298433B1 (it) | 1997-02-27 | 2000-01-10 | Bosch Gmbh Robert | Utensile elettrico portatile in particolare smerigliatrice |
| DE10046065A1 (de) * | 2000-09-18 | 2002-03-28 | Hilti Ag | Elektrowerkzeug mit Klemmeinrichtung |
| DE10139546A1 (de) * | 2001-08-10 | 2003-02-20 | Bosch Gmbh Robert | Schleifhandwerkzeugmaschine |
| DE10139548A1 (de) * | 2001-08-10 | 2003-02-20 | Bosch Gmbh Robert | Schleifhandwerkzeugmaschine |
| DE10139547A1 (de) | 2001-08-10 | 2003-02-20 | Bosch Gmbh Robert | Schleifhandwerkzeugmaschine |
-
2002
- 2002-07-16 DE DE10232055A patent/DE10232055A1/de not_active Ceased
-
2003
- 2003-02-10 US US10/501,161 patent/US7131899B2/en not_active Expired - Fee Related
- 2003-02-13 EP EP03709600.5A patent/EP1523397B1/de not_active Expired - Lifetime
- 2003-02-13 CN CNB038169045A patent/CN100371132C/zh not_active Expired - Fee Related
- 2003-02-13 WO PCT/DE2003/000379 patent/WO2004016390A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004016390A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10232055A1 (de) | 2004-02-05 |
| EP1523397B1 (de) | 2014-10-29 |
| CN100371132C (zh) | 2008-02-27 |
| WO2004016390A1 (de) | 2004-02-26 |
| US20050085172A1 (en) | 2005-04-21 |
| US7131899B2 (en) | 2006-11-07 |
| CN1668422A (zh) | 2005-09-14 |
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