EP1476045A1 - Schleifeinrichtung zum bearbeiten der enden von borstenfilamenten von zahnbürsten - Google Patents
Schleifeinrichtung zum bearbeiten der enden von borstenfilamenten von zahnbürstenInfo
- Publication number
- EP1476045A1 EP1476045A1 EP02787856A EP02787856A EP1476045A1 EP 1476045 A1 EP1476045 A1 EP 1476045A1 EP 02787856 A EP02787856 A EP 02787856A EP 02787856 A EP02787856 A EP 02787856A EP 1476045 A1 EP1476045 A1 EP 1476045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- tracks
- grinding device
- bristle
- different
- 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
- 238000003754 machining Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 description 6
- 238000005498 polishing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D9/00—Machines for finishing brushes
- A46D9/02—Cutting; Trimming
Definitions
- the invention relates to a grinding device for processing the ends of bristle filaments of toothbrushes according to the preamble of patent claim 1.
- a grinding device for processing the ends of bristle filaments of toothbrushes of the type described in the introduction in which this consists of a drum, on the peripheral outer surface of which the grinding surface is formed.
- two different grinding surfaces are present on the circumferential lateral surface, the first grinding surface forming a strip-shaped path running in the direction of rotation, which is interrupted by a second grinding surface which is in the form of projections or webs running transversely to the first grinding surface.
- the second grinding surface is used to roughen the bristle ends through the first grinding surface and their directly adjacent lateral surfaces, in order to thereby increase the cleaning-active surface.
- the object of the invention is to improve a grinding device according to the preamble of claim 1 such that several grinding processes can be carried out more quickly in a simple manner with simple means.
- With the grinder should can also be achieved that a rounding of complex bristle topographies can be more precisely adapted to a grinding process.
- the grinding device should be simple, time and space-saving and inexpensive than conventional grinding devices.
- Such a grinding device requires considerably less space, saves resources and shortens the grinding time per toothbrush, since the tufts of bristles to be processed do not have to be brought to different grinding wheels during different grinding processes. This reduces the cycle time of the grinding processes.
- the individual grinding surfaces are clearly separated from one another, which also leads to a clear separation of the grinding processes.
- the pressure of the ends of the bristle filaments on the friction disks or friction belts in the second grinding process automatically corresponds to the formation of the gradation is withdrawn or reinforced because the distance between the teeth-cleaning ends of the bristle fi lamente to the second grinding surface has become larger or smaller than the distance to the first grinding surface.
- expensive press-on devices for the bristle filaments can be dispensed with, which reduces tooling, wear and other costs.
- the steps run radially to the center of the disk.
- patent claim 5 preferably create a grinding wheel with two grinding tracks, with which two grinding processes can be carried out side by side or one after the other.
- three, four or even more grinding tracks can also be formed on the grinding wheel if a correspondingly large number of grinding processes are to be carried out and if the space on the grinding surface is large enough to accommodate the bristles or tufts.
- the diameter of the grinding wheel must then be adapted accordingly to the grinding tracks. This also has the advantage that the larger the diameter of the grinding wheel, the higher the outer circumference, the higher the friction speeds, and therefore the toothbrush filaments on the toothbrush side can be processed much more effectively with coarser wheel surfaces.
- a round grinding wheel with circular and annular grinding tracks has proven to be a particularly inexpensive grinding wheel to manufacture. If, according to the features of patent claim 6, the grinding surface of the disk is formed by a truncated cone surface or a cone, different pressures can also be achieved due to the different heights of the grinding tracks compared to the teeth cleaning ends of the bristle filaments. The inclination of the wheel must be matched to the grinding surface, the grinding speed and the material of the bristle filaments.
- the grinding device In the grinding movements, the grinding device not only has to rotate about its own axis, it can also perform wobbling rotary movements, so that the contact pressure of the disc against the bristle ends changes constantly and the frictional forces act on the tuft ends from a radial to a tangential direction , This improves the rounding of the bristle ends.
- the rotation of the friction disc from left to right can also be changed continuously, which also improves rounding. A combination of all of these properties leads to optimal rounding technology.
- the device consists of a belt on which a plurality of grinding tracks are formed side by side.
- This embodiment has the advantage that the friction speeds are the same on all grinding tracks, since the diameter remains constant. If the circumferential band runs inclined to the tuft axis, the contact pressures on the ends of the bristle filaments can also be changed here.
- 1 is a schematic plan view of a circular grinding surface of a grinding wheel with two grinding tracks according to the invention on a reduced scale, the grinding surfaces lying in one plane, 2 shows a section through the center of the grinding surface according to FIG. 1, although the cross section of the grinding surface is shown enlarged and the base body is only shown in sections,
- FIG. 3 shows a schematically illustrated plan view of a circular grinding surface of a second exemplary embodiment according to the invention, the individual grinding tracks not being arranged all around but on the grinding wheel in a cross-divided manner,
- FIG. 5 shows a schematically represented plan view of a third exemplary embodiment of a circular grinding surface of a grinding wheel with two grinding tracks, the surface of the wheel being inclined towards the center,
- the grinding device 1 consists of a grinding support 2, on the surface 3 of which is designed as a support surface, a grinding layer 5 provided with grinding elements 4 is formed.
- the thickness of the abrasive layer 5 is shown enlarged in the drawings, for the sake of better illustration.
- the grinding layer 5 here consists of two grinding tracks 6, 7, the grinding surfaces 8, 9 of which adjoin one another on the line 10.
- the grinding surface 8 runs in a ring shape to the grinding surface 9, which is enclosed as a circle by the grinding surface 8.
- the transition from the grinding surface 9 to the grinding surface 8 is practically seamless at the line 10. Grinding surfaces 8, 9 lie here in a horizontal plane.
- FIGS. 1 In FIGS.
- the grinding surface 8 runs according to a section of a crescent, although a semicircle is formed in the middle, so that the rest occupies the grinding surface 9 of a half circular ring on the round grinding layer 5.
- the grinding surfaces 8, 9 lie in a horizontal plane.
- the grinding surfaces 8, 9 are formed in plan view as in FIG. 1. 6, however, they slope towards the center 11, so that their lateral surfaces form a common conical surface.
- step 12 is formed at the transition from the grinding surface 8 to the grinding surface 9, so that the grinding surface 9 is lower than the grinding surface 8.
- the step 12 it is also conceivable for the step 12 to protrude upwards, so that the grinding surface 9 would then lie above the grinding surface 8.
- an inclined ramp is formed instead of step 12 so that the transition runs continuously.
- the step 12 can also be formed by a radius in order to make the transition appear constant.
- a tufts of bristles 13 are shown in sketch form in FIG. 2 and here run perpendicular to the grinding surface 8.
- the tufts of bristles 13 consist of individual bristle filaments 15 running in the longitudinal direction of the tufts of bristles 13.
- the rotational speed of the grinding device 1 can be increased or decreased in order to achieve the desired abrasion at the ends 14 of the bristle tufts 13.
- the grinding device 1 according to FIGS. 3 and 4 has the effect that it has to be rotated oscillating about its axis 11 if the bristle tufts 13 are to remain on only one grinding surface 8 or 9.
- the tufts of bristles 13 can be aligned here such that they run parallel to the center 11, ie the ends 14 of the tufts of bristles 13 are ground at an angle or rounded.
- the grinding device 1 according to FIGS. 7 and 8 enables a reduction in pressure when the ends 14 of the bristle tufts 13 transition from the outer grinding surface 8 to the inner grinding surface 9, so that they are pressed against the surface 9 with less force. This is particularly advantageous if the grinding surface 9 is to serve as a polishing surface.
Landscapes
- Brushes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10207071A DE10207071A1 (de) | 2002-02-20 | 2002-02-20 | Schleifeinrichtung zum Bearbeiten der Enden von Borstenfilamenten von Zahnbürsten |
| DE10207071 | 2002-02-20 | ||
| PCT/EP2002/013440 WO2003070054A1 (de) | 2002-02-20 | 2002-11-28 | Schleifeinrichtung zum bearbeiten der enden von borstenfilamenten von zahnbürsten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1476045A1 true EP1476045A1 (de) | 2004-11-17 |
| EP1476045B1 EP1476045B1 (de) | 2009-02-11 |
Family
ID=27674770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02787856A Expired - Lifetime EP1476045B1 (de) | 2002-02-20 | 2002-11-28 | Schleifeinrichtung zum bearbeiten der enden von borstenfilamenten von zahnbürsten |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20030157872A1 (de) |
| EP (1) | EP1476045B1 (de) |
| AT (1) | ATE422313T1 (de) |
| AU (1) | AU2002352175A1 (de) |
| DE (2) | DE10207071A1 (de) |
| WO (1) | WO2003070054A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2309016A (en) * | 1942-02-09 | 1943-01-19 | Norton Co | Composite grinding wheel |
| US3451173A (en) | 1966-02-17 | 1969-06-24 | Carlson Tool & Machine Co | Abrasive element for finishing paint brushes or the like |
| US5165761A (en) * | 1991-12-30 | 1992-11-24 | The Procter & Gamble Company | Method of making improved toothbrush having multi-level tufts with substantially uniformly rounded bristle ends in each tuft |
| US5496209A (en) * | 1993-12-28 | 1996-03-05 | Gaebe; Jonathan P. | Blade grinding wheel |
| US5503592A (en) * | 1994-02-02 | 1996-04-02 | Turbofan Ltd. | Gemstone working apparatus |
| US5593213A (en) * | 1994-03-11 | 1997-01-14 | Gillette Canada Inc. | Bristle finishing fork |
| DE19639453B4 (de) * | 1996-07-05 | 2011-06-09 | Anton Zahoransky Gmbh & Co. | Schleifvorrichtung |
| DE19644025A1 (de) * | 1996-10-31 | 1998-05-07 | Zahoransky Anton Gmbh & Co | Verfahren und Vorrichtung zum Bearbeiten von Borsten |
| DE19847407A1 (de) * | 1998-10-14 | 2000-04-20 | Schiffer Fa M & C | Vorrichtung und Verfahren zum Bearbeiten von Borstenfilamenten von Bürsten |
| DE19848221A1 (de) | 1998-10-20 | 2000-04-27 | Zahoransky Anton Gmbh & Co | Vorrichtung zum Schleifen der Borstenenden eines Borstenfeldes |
-
2002
- 2002-02-20 DE DE10207071A patent/DE10207071A1/de not_active Ceased
- 2002-11-28 AT AT02787856T patent/ATE422313T1/de active
- 2002-11-28 WO PCT/EP2002/013440 patent/WO2003070054A1/de not_active Ceased
- 2002-11-28 DE DE50213277T patent/DE50213277D1/de not_active Expired - Lifetime
- 2002-11-28 AU AU2002352175A patent/AU2002352175A1/en not_active Abandoned
- 2002-11-28 EP EP02787856A patent/EP1476045B1/de not_active Expired - Lifetime
-
2003
- 2003-02-19 US US10/370,391 patent/US20030157872A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03070054A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003070054A1 (de) | 2003-08-28 |
| DE50213277D1 (de) | 2009-03-26 |
| ATE422313T1 (de) | 2009-02-15 |
| EP1476045B1 (de) | 2009-02-11 |
| DE10207071A1 (de) | 2003-09-11 |
| US20030157872A1 (en) | 2003-08-21 |
| AU2002352175A1 (en) | 2003-09-09 |
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