EP1602462A1 - Trennscheibenanordnung - Google Patents
Trennscheibenanordnung Download PDFInfo
- Publication number
- EP1602462A1 EP1602462A1 EP05103981A EP05103981A EP1602462A1 EP 1602462 A1 EP1602462 A1 EP 1602462A1 EP 05103981 A EP05103981 A EP 05103981A EP 05103981 A EP05103981 A EP 05103981A EP 1602462 A1 EP1602462 A1 EP 1602462A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- cutting disc
- working width
- arrangement according
- disc arrangement
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 36
- 239000004567 concrete Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/34—Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
Definitions
- the invention relates to a cutting disc assembly for producing groove-shaped recesses in a workpiece, such as cable slots in a gypsum, brick or Concrete wall.
- the cutting disc assembly has at least two cutting discs, between where two spacing elements are arranged, which are for variable fixing serve a working width of the cutting wheels.
- one of the spacing elements rotationally coupled to one of the cutting discs, wherein the spacing elements Over slope surfaces lie against each other, directed in the direction of rotation opposite are inclined. In this way it is possible the distance between the cutting discs can be adjusted by relative rotation of the two spacer elements to each other.
- Such a blade assembly has the advantage that the cutting discs for the production various wide groove-shaped recesses can be used.
- the Groove width can be adjusted to the blade assembly, without that Cutting discs must be removed from the hand-held power tool. As a result, the adjustment of the groove width is simplified.
- From US 5,309,962 is a cutting disc assembly for producing grooves with at least two saw blades known. Between the saw blades are each two spacing elements provided, each two extending over 180 ° and by profile jumps having separate arcuate ramp sections corresponding to two shaped counter-rotating ramp sections of the other spacer element issue. To determine the groove width, the spacing elements in a position twisted against each other, in which the ramp sections so far from each other, that the outer distance of the saw blades corresponds to the desired width. Subsequently The saw blades are at the interposition of the spacer elements by tightening a fastening nut fixed on a drive spindle.
- a disadvantage of the known cutting disc arrangement is that an exact adjustment of desired groove width is relatively difficult, since the spacer elements and with them also the saw blades only at a certain caused by the fastening nut Contact pressure due to the friction between the ramp sections in the direction of rotation are securely attached to each other. However, it can be until this contact pressure is reached easily come to a mutual slippage of the ramp sections, in which the Working width of the blade assembly is unintentionally adjusted. Especially common when setting the maximum working width to problems, since here the friction surface between the ramp sections is minimal and thus this particularly easy against each other slip. In addition, there is an abrupt change due to the sudden jump in the profile to the minimum working width, which makes it easy to disturbing tilting when setting can reach the groove width to be achieved.
- the present invention is based on the object, in a cutting disc assembly avoid the disadvantages mentioned and a comfortable and accurate setting of the desired To ensure groove width.
- the object is achieved in that on the slope surface of the Spacing elements an engagement contour is provided.
- this engagement contour of the a spacing element is a positive fit along the pitch surface with a Counter-engagement contour of each other spacer element produced.
- a positive connection is achieved, which is parallel to the slope surface when setting the working width acts.
- the engagement contour has ribs transverse to the direction of rotation and the counter-engagement contour on correspondingly shaped grooves.
- This will on the one hand allows particularly stable positive connection between the spacer elements, the even without axially acting contact force unintentional mutual rotation of the spacer elements prevented.
- the predetermined working widths correspond.
- the positions for millimeter graded Working widths are set, whereby the handling is further improved.
- At least one intermediate position provided in which a positive connection between the spacer elements produced is. This allows between the extreme positions more intermediate positions be provided to provide a particularly accurate and stable adjustment of the desired To be able to start working width.
- the pitch surfaces each have one completely encircling undulating cross section with a steady slope on. hereby It also comes with the mutual rotation over 360 ° of the spacer elements to no sudden changes in the distance between the cutting wheels. Rather, the respectively set working width when twisting is up to each other a wave crest of one of the spacer elements on a wave crest of the respective other spacing element gradually increased. Subsequently it will continue turning until the juxtaposition of a wave crest of the one Spacing element on a wave trough of the other spacer element continuously reduced. This is a particularly accurate with easy handling Setting the groove width produced allows.
- the wave-shaped cross section of the spacing elements respectively at least three wave crests on. This allows the spacer elements at each set working width over at least three points, i. in a statically determined Support each other way. As a result, the cutting discs in a particular stable manner to each other.
- the spacer elements are molded from plastic, whereby the Gradient surfaces and possibly the engagement or counter-engagement contours exactly and are inexpensive to produce.
- the working width is preferably adjustable over a range of 10 to 16 mm. This gives you a range of values for the adjustable working width, for example when laying cables the commonly required groove widths contains and at the same time a stable setting of all values of this range in a comfortable way allowed.
- the object is achieved by a hand tool with a cutting disc arrangement solved according to one of the aforementioned embodiments, wherein the cutting disc assembly is held by a releasable from the hand tool adapter on this. That way is it is also possible to preset the cutting disc arrangement separately from the hand tool device, or to use on various hand tools.
- Fig. 1 shows the device head 2 of a hand tool 4 in the form of an angle grinder. From this protrudes a motor-driven work spindle 6, on which an external thread 8 is formed.
- a cutting wheel assembly 10 is attached, for the manufacture a groove-shaped recess in a workpiece, not shown, such as a plaster or a concrete wall serves.
- the cutting disc assembly 10 has an im Substantially sleeve-shaped adapter 12, which is screwed onto the work spindle 6 can be.
- the adapter 12 forms a cylindrical surface 14, which is for pushing a first blade 16a and a second blade 16b is used.
- the Cutting discs 16a, 16b central receiving recesses 18.
- the cutting discs 16a, 16b in the attached state substantially perpendicular to a drive axle A of the work spindle 6.
- first spacer element 20a and a second spacer element 20b are between the two cutting discs 16a, 16b. These have central bores 22, which in the attached state of the cutting disc assembly 10 are penetrated by the work spindle 6.
- the spacer elements 20a, 20b, each with one of the cutting discs 16a, 16b the cutting discs 16a, 16b around the receiving recesses 18 around a plurality of engagement receptacles 24 in the form of holes.
- the spacer elements 20a, 20b each have on a Anlegeseite 26 arranged and dimensioned accordingly cylindrical engagement elements 28, which in the mounted state in the engagement receptacles 24 protrude and with this one in a direction of rotation R of the cutting wheels 16 a, 16b form-fitting form.
- the spacing elements form 20a, 20b respectively slope surfaces 30a, 30b, the one about the drive axis A completely have circumferential, wavy profile.
- the spacing elements lie 20a, 20b via these slope surfaces 30a, 30b to each other.
- the profiles both Spacing elements 20a, 20b each have three crests K with intervening Troughs T on.
- grooves 32 are recessed. These grooves 32 are adapted in size and arrangement of ribs 34, the protrude the slope surface 30b of the other spacer element 20b.
- the cutting disk arrangement 10 also has a Clamping nut 36, over which the cutting discs 16a, 16b and the spacer elements 20a, 20b can be tightened on the adapter 12.
- the cylinder surface 14 is on the adapter 12 between a clamping thread 38, screwed onto the clamping nut 36 can be, and a landing flange 40 is arranged. This allows the Cutting discs 16a, 16b and the spacer elements 20a, 20b after sliding on the cylindrical surface 14 is clamped between the abutment flange 40 and the clamping nut 36 regardless of whether the adapter 12 is attached to the hand tool 4 or not.
- Fig. 2 shows the cutting wheel assembly 10 in the attached state on the power tool 4 in a first position, in which a minimum working width B of, for example, 10 mm is set.
- the minimum working width B is determined by the axial outside distance the cutting discs 16a, 16b formed, the one to be achieved in this setting groove width equivalent.
- the two spacer elements 20a, 20b in such a way between the Cutting discs 16a, 16b arranged that the wave crests K of the outer spacer element 20b completely into the troughs T of the inner spacer element 20a are laid.
- all ribs 34 are laid in the grooves 32 inside. hereby are the two spacer elements 20a, 20b as close as possible to each other, whereby at the same time the distance of the cutting wheels 16a, 16b is minimized.
- the clamping nut 36 is released so far that the two Spacing elements 20a, 20b can be rotated against each other. Press here these are on their pitch surfaces 30a, 30b from each other and enlarge at the same time the axial distance between the cutting discs 16a, 16b.
- the spacing elements 20a, 20b become in an intermediate position twisted, in the three of the ribs 34 of the outer spacer element 20b in three grooves 32 of the inner spacing element 20a are arranged as shown in FIG.
- the grooves 32 and ribs 34 are arranged so that over a range of rotation of 120 ° more intermediate positions are possible, in which the ribs 34 with the grooves 32 in Engage.
- Each displacement of the spacer elements 20a, 20b in the next one This engagement positions causes the cutting wheels 16a, 16b a change the working width B by a predetermined amount.
- the spacing elements 20a, 20b rotated after loosening the clamping nut 36 in a second position shown in Fig. 4.
- the three grip on the wave crests K of the outer spacer element 20b projecting ribs 34 in the three at the wave crests K of the inner Spacing element 20a recessed grooves 32.
- the spacing elements press 20a, 20b in the greatest possible way over their pitch surfaces 30a, 30b from each other, wherein at the cutting discs 16a, 16b a maximum working width A of for example, 16 mm is set.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Milling Processes (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Pens And Brushes (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Adornments (AREA)
Abstract
Description
- Fig. 1
- eine teilweise Ansicht eines Handwerkzeuggerätekopfes mit einer daran anbringbaren erfindungsgemässen Trennscheibenanordnung in perspektivischer Explosions-darstellung,
- Fig. 2
- eine Ansicht der Trennscheibenanordnung nach Fig. 1 in angebrachtem Zustand und mit eingestellter minimaler Arbeitsbreite,
- Fig. 3
- eine Ansicht Trennscheibenanordnung mit einer gegenüber Fig. 2 vergrösserten Arbeitsbreite und
- Fig. 4
- eine Ansicht Trennscheibenanordnung nach Fig. 2 mit eingestellter maximaler Arbeitsbreite.
Claims (9)
- Trennscheibenanordnung (10) zur Herstellung nutförmiger Ausnehmungen in einem Werkstück
mit mindestens zwei Trennscheiben (16a, 16b), die eine gemeinsame Arbeitsbreite (B) festlegen, und
zwei zwischen diesen angeordneten Beabstandungselementen (20a, 20b) zur veränderbaren Einstellung der Arbeitsbreite (B),
von denen jeweils eines mit einer der Trennscheiben (16a, 16b) drehgekoppelt ist,
wobei die Beabstandungselemente (20a, 20b) über Steigungsflächen (30a, 30b) aneinander liegen, die in einer Rotationsrichtung (R) entgegengesetzt geneigt sind,
dadurch gekennzeichnet, dass an der Steigungsfläche (30a, 30b) eines der Beabstandungselemente (20a, 20b) eine Eingriffskontur vorgesehen ist, über die ein entlang der Steigungsfläche (30a, 30b) wirkender Formschluss mit einer Gegeneingriffskontur des jeweils anderen Beabstandungselementes (20b, 20a) herstellbar ist. - Trennscheibenanordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Eingriffskontur quer zur Rotationsrichtung (R) stehende Rippen (34) und die Gegeneingriffskontur entsprechend ausgeformte Nuten (32) aufweist.
- Trennscheibenanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zwischen den Beabstandungselementen (20a, 20b) jeweils ein Formschluss in einer ersten Stellung, die einer minimalen Arbeitsbreite (B) der Trennscheiben (16a, 16b) entspricht, und einer zweiten Stellung, die einer maximalen Arbeitsbreite (B) der Trennscheiben (16a, 16b) entspricht, herstellbar ist.
- Trennscheibenanordnung nach Anspruch 3, dadurch gekennzeichnet, dass zwischen der ersten und zweiten Stellung wenigstens eine Zwischenstellung vorgesehen ist, in der ein Formschluss zwischen den Beabstandungselementen (20a, 20b) herstellbar ist.
- Trennscheibenanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Steigungsflächen (30a, 30b) jeweils einen umlaufenden wellenförmigen Querschnitt mit einer stetigen Steigung aufweisen.
- Trennscheibenanordnung nach Anspruch 5, dadurch gekennzeichnet, dass der wellenförmige Querschnitt mindestens drei Wellenkämme (K) aufweist.
- Trennscheibenanordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Beabstandungselemente (20a, 20b) aus Kunststoff geformt sind.
- Trennscheibenanordnung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Arbeitsbreite (B) in einem Bereich von 10 bis 16 mm einstellbar ist.
- Handwerkzeuggerät mit einer Trennscheibenanordnung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Trennscheibenanordnung (10) über einen vom Handwerkzeuggerät (4) lösbaren Adapter (12) an diesem gehalten ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004026849 | 2004-06-02 | ||
| DE102004026849A DE102004026849B3 (de) | 2004-06-02 | 2004-06-02 | Trennscheibenanordnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1602462A1 true EP1602462A1 (de) | 2005-12-07 |
| EP1602462B1 EP1602462B1 (de) | 2007-03-28 |
Family
ID=34939810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05103981A Expired - Lifetime EP1602462B1 (de) | 2004-06-02 | 2005-05-12 | Trennscheibenanordnung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1602462B1 (de) |
| AT (1) | ATE358000T1 (de) |
| DE (2) | DE102004026849B3 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2731762B1 (de) * | 2011-07-12 | 2018-01-24 | GMM S.p.a. | Werkzeughaltereinheit einer maschine zum bearbeiten von block- oder plattenmaterialien und maschine mit einer solchen einheit zum bearbeiten von block- oder plattenmaterialien |
| DE102024118330A1 (de) * | 2024-06-28 | 2025-12-31 | Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG | Verstellbare Sägeblatthalterung für eine Kreissäge und Kreissäge mit einer solchen verstellbaren Sägeblatthalterung |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020133211A1 (de) * | 2020-12-11 | 2022-06-15 | Liebherr-Werk Nenzing Gmbh | Verfahren zur Montage eines Fräsrads einer Schlitzwandfräse |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589458A (en) * | 1984-10-29 | 1986-05-20 | Vermont American Corporation | Multiple saw blade adjustable dado cutter |
| US5309962A (en) * | 1993-05-13 | 1994-05-10 | Vermont American Corporation | Multiple saw blade adjustable dado cutter assembly including a cam assembly and nestable dado blades |
-
2004
- 2004-06-02 DE DE102004026849A patent/DE102004026849B3/de not_active Expired - Fee Related
-
2005
- 2005-05-12 AT AT05103981T patent/ATE358000T1/de active
- 2005-05-12 EP EP05103981A patent/EP1602462B1/de not_active Expired - Lifetime
- 2005-05-12 DE DE502005000517T patent/DE502005000517D1/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589458A (en) * | 1984-10-29 | 1986-05-20 | Vermont American Corporation | Multiple saw blade adjustable dado cutter |
| US5309962A (en) * | 1993-05-13 | 1994-05-10 | Vermont American Corporation | Multiple saw blade adjustable dado cutter assembly including a cam assembly and nestable dado blades |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2731762B1 (de) * | 2011-07-12 | 2018-01-24 | GMM S.p.a. | Werkzeughaltereinheit einer maschine zum bearbeiten von block- oder plattenmaterialien und maschine mit einer solchen einheit zum bearbeiten von block- oder plattenmaterialien |
| DE102024118330A1 (de) * | 2024-06-28 | 2025-12-31 | Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG | Verstellbare Sägeblatthalterung für eine Kreissäge und Kreissäge mit einer solchen verstellbaren Sägeblatthalterung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004026849B3 (de) | 2005-11-24 |
| ATE358000T1 (de) | 2007-04-15 |
| DE502005000517D1 (de) | 2007-05-10 |
| EP1602462B1 (de) | 2007-03-28 |
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