EP2929993B1 - Stop device - Google Patents
Stop device Download PDFInfo
- Publication number
- EP2929993B1 EP2929993B1 EP15161022.7A EP15161022A EP2929993B1 EP 2929993 B1 EP2929993 B1 EP 2929993B1 EP 15161022 A EP15161022 A EP 15161022A EP 2929993 B1 EP2929993 B1 EP 2929993B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- stop device
- carrier
- stop
- blocking
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 235000004727 Opuntia ficus indica Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003370 grooming effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
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- 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
- B27B27/00—Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon
- B27B27/06—Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon arranged angularly with respect to the plane of the saw blade, e.g. for mitring
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- 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
- B27B27/00—Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon
- B27B27/08—Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon arranged adjustably, not limited to only one of the groups B27B27/02 - B27B27/06
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G5/00—Machines or devices for working mitre joints with even abutting ends
- B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes
- B27G5/023—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes the mitre angle being adjusted by positioning a workpiece relative to a fixed saw
Definitions
- the invention relates to a stop device, in particular for a cross-cut saw according to the Oberbregriff of claim 1, and a sawing arrangement with such.
- miter saws it is possible, for example, to saw miter elements for lining a corner room, such as baseboards or the like.
- the saw is set to half the angle (bisector) and a corresponding, applied to a stop bar can be sawn miter.
- the saw is pivoted in a further step by the measured angle in the opposite half of the support and then sawn the complementary bar. In practice, this method has proven to be cumbersome.
- a comparable arrangement is also from the German utility model DE 92 11 135 U1 which discloses a corresponding miter box for use with a suitable saw.
- the publication DE 299 296 A also discloses a miter box in which the inevitably interconnected by gears wings can be set in any angular position.
- the wings are attached to rings and cone segments, which rotate around a drum, the base plate itself is rotatable and is connected to a base by a bayonet closure.
- one of the wings has a brake pad which can be pressed against a part connected to the other wing, whereby the determination of the wings takes place.
- a chop saw can be used in which by pivoting the saw unit, the saw blade can be lowered in the direction of the support with the stop means and can dive into a recess provided for this purpose.
- the disclosure GB 2 208 624 A a stop device according to the preamble of claim 1, in particular a support table for supporting a pair of workpieces. Attached to the table for this purpose are two paired engagement supports that are adjustable and whose distance from one another according to a predetermined angle can be adjusted to a desired miter angle. At least one clamp is provided to clamp a workpiece against an engagement post. A cutting guide is further provided to guide a cutting tool along a cutting line through the space between the engagement posts.
- An object of the present invention is therefore to further improve the known from the prior art stop device and to ensure a simple and quick operation of the saw assembly.
- a stop device in particular for a cross-cut saw, proposed, comprising a support with a support for a workpiece to be machined and two stop means, wherein the stop means relative to the carrier are displaceable about a common pivot axis such that an angle bisector of this included angle remains fixed to the carrier during a displacement of the stop means, and wherein at least part of the support is rotatable at least in sections about a rotation axis perpendicular thereto relative to the carrier.
- the two stop means are coupled to each other via an adjusting mechanism.
- a cross-cut saw combines the advantages of a simple chop saw with a swiveling saw unit with those of a saw, which is guided along a guide slidably.
- the training with a pull function allows in particular the production of cuts which are longer than the diameter of the saw blade, without the workpiece for this purpose has to be moved relative to the workpiece support surface of the saw.
- the stop device may further comprise a locking mechanism adapted to lock a rotation of the rotatable part of the support when the stop means are not arranged in a predefined zero position relative to the carrier.
- the stop means can be provided that allow exactly a predefined zero position of the stop means relative to the carrier rotation of the rotatable part of the support.
- several predefined zero positions of the stop means may be provided relative to the carrier. It is conceivable, for example, a zero position of the stop means relative to the carrier, in which the stop means between them enclose an angle of 180 ° and thus jointly define an axis.
- other zero positions for example, with alternative enclosed by the stop means angles, in particular of 90 ° or 270 °, be defined.
- the stop means in a predefined zero position together define an axis which coincides with a cutting plane of the saw blade of a miter saw or is inclined thereto at a predefined angle.
- the stop device may further comprise a locking mechanism which is adapted to lock a displacement of the stop means when the rotatable part of the support is not arranged in a predefined zero position relative to the carrier.
- the stop device comprises only one of the above-mentioned locking mechanisms, two separate locking mechanisms or a common locking mechanism, the latter can also provide a mutual barrier of known from the Kappsäge Sea Tischver loftung (support relative to support) and a stop adjustment of the stop means ,
- the stop device further comprises a locking mechanism for releasing and locking the rotatable part of the support, which comprises a release bolt which is at least partially in engagement with the rotation of the rotatable part of the support position engaged with the latter and the carrier , Only by releasing the engagement position of the release bolt with the rotatable part of the support and / or the support is a rotation of the rotatable part of the support possible. For example, such a release of the release bolt by a translational or rotational movement or a combined translational and rotational movement take place.
- a plurality of miter notches or other recesses may be provided on the carrier into which the release bolt is able to engage, in order to stably and reproducibly fix the support relative to the support.
- the stop device may further comprise a locking mechanism for releasing and locking the adjusting mechanism of the two stop means, which comprises at least one locking pin, which in one the displacement the stop means blocking position is at least partially engaged with the carrier and the adjusting mechanism.
- a locking mechanism for releasing and locking the adjusting mechanism of the two stop means which comprises at least one locking pin, which in one the displacement the stop means blocking position is at least partially engaged with the carrier and the adjusting mechanism.
- the release bolt and the locking pin can be displaced by a translational, rotary or combined translational and rotational movement from the engaged position with the carrier and / or the adjusting mechanism of the stop means and in this way an adjustment or displacement of the stop means with the aid of Enable adjustment mechanism.
- a plurality of recesses may also be provided in the locking mechanism for releasing and locking the adjusting mechanism of the two stop means on the carrier, in which the locking pin is able to intervene to the stop means relative to the carrier and to fix reproducible.
- the locking mechanism comprises a coupling member which is able to couple the release bolt with the locking pin.
- both locking mechanisms or a common i. combined locking mechanism for locking a rotation of the rotatable part of the support and for blocking a displacement of the stop means provided.
- the coupling member serves to block each other by connecting the release bolt with the locking pin actively.
- the coupling member may comprise a double-arm, the first arm is coupled to the release bolt and the second arm with the locking pin. A displacement of the release pin has in this way a displacement of the coupling member result, which transmits via the double-armed lever on the coupled locking pin.
- the carrier may further comprise at least one, preferably two recesses into which the locking pin and / or the release bolt are able to intervene when the stop means and / or the support are in the predetermined zero position.
- the present invention also relates to a sawing arrangement comprising a saw unit and a stop device, which has the features of claims 1 to 9.
- FIGS. 1 to 4 show a sawing arrangement according to the invention, which is generally denoted by the reference numeral 10 below.
- the saw assembly 10 comprises in a known manner, a saw unit 20 and a stop device 30 according to the invention.
- the saw assembly 10 shown is a miter saw, wherein the saw unit 20 can be pivoted about the hinge 12 in the direction of the stop device 30 down to perform a corresponding cut.
- the saw unit 20 has in the usual way a saw blade 24 a, which is rotatably mounted about a rotation axis 18.
- a protective hood 24b protects the user and additionally has a handle 24c for ease of operation.
- the saw blade 24a is driven by a drive unit 26.
- the saw unit 20 is also slidably mounted via a cable guide 28 by means of a guide assembly 28b along the tie rods 28a.
- the saw unit is supported together with the cable guide 28 via a support arm 22 on a rotatable support 36 of the stopper 30 and can by a hinge pin 14 relative to the stop device 30 and the support 36 by operating a handle 16 (see FIG. 3 ) are pivoted.
- the sawing arrangement 10 according to the invention is shown in the sawing mode. In this mode, it is used to adjust inguinal attacks and for grooming ledge attacks. Corresponding strips are for this purpose applied to stop means 50, which are attached to the stop device 30. As explained in more detail below, the saw assembly 10 according to the invention allows a particularly simple and reliable setting for sawing strips in the miter cut.
- FIG. 2 the sawing assembly 10 according to the invention is shown in the usual Kappsägemodus in which particularly due to the existing cable guide 28 and very long cuts are possible.
- FIG. 3 finally shows a special function of the saw assembly 10 according to the invention, in which a Doppelgehrungsterrorism is made possible by additional pivoting of the saw unit 20 relative to the stop device 30.
- stop device 30 is composed in the manner of a turntable composed of a support 32, which in the embodiment shown four feet 34, and a relative to the support 32 rotatable support 36, which at the same time forms a support surface 36a for a workpiece to be machined (not shown) ,
- groove-shaped recesses 32a and 32b (indicated by the dashed line in the FIGS. 1 and 2 ) intended.
- the latter serve for the rotatable mounting of the support 36 on the support 32.
- Corresponding groove-shaped recesses 36b are likewise formed on the support 36.
- the support 36 further includes a cantilever arm 36c and a slot 38 in which the saw blade 24a is capable of submerging. Via an actuating element 40, a locking mechanism for fixing the rotatable support 36 can be operated, via which the support 36 can be stepped relative to the support 32 and fixed reproducibly. This is, as in the FIG. 4 can be seen better, a release pin 42 is provided, which is able to engage in provided on the carrier 32 miter notches or recesses.
- the saw assembly 10 comprises stop means 50, whose operation will be discussed in more detail below.
- the stop means 50 comprise stop strips 52, which are each arranged displaceably on a stop base 54 relative to the carrier 32 (cf. Figures 2 and 3 ).
- a shoulder 56 is provided on each of the stop base 54, which in the corresponding groove-shaped recess 32a of the carrier 32 is slidably received.
- the stop bases 54 are further coupled together in such a way that due to the manual adjustment of one of the two stop means 50, the respective other stop means 50 is displaced by the same angular amount in the opposite direction. It is essential that in the operating position grooved saws (cf. FIG. 1 ) an angular bisector of an enclosed by the stop means 50 angle relative to the support 36 remains stationary and in particular coincides with the sawing plane formed by the saw blade 24a.
- the underlying adjustment mechanism of the stop means 50 may be formed in the manner as described for example in the European patent application EP 0 994 766 A1 is described.
- the stop device 30 a locking mechanism for releasing and locking the adjustment mechanism of the two stop means 50, which includes a locking pin 46, which is able to engage with its free end 46 b provided on the support 32 receiving openings and / or notches 48 (see FIG. 4 ) to fix the slings in reproducible positions.
- a locking mechanism is further provided which locks the support 36 in a predefined zero position relative to the support 32 when the saw assembly 10 in the saw saw mode is to be used and for this purpose the stop means 50 are to be arranged in a deviating from 180 degrees angle to each other. In this way it can be ensured that the bisector of the angle enclosed by the stop strips 52 coincides with the cutting plane of the saw blade 24a.
- the saw unit 20 is arranged on the support arm 22 on the support 36, so that a relative rotation of the support 36 to the support 32 also has a corresponding relative displacement of the saw unit to the carrier 32 result.
- the locking mechanism ensures that the release bolt 42 can only release a rotation of the support 36 relative to the carrier 32 when the stop means 50 have reached their zero position.
- a coupling member in the form of a double-armed lever 44 is provided as part of the locking mechanism.
- the Indian FIG. 4 left) arm 44a is coupled to the release pin 42 and transmits a pivoting movement about the bearing point 44c by means of (in the FIG. 4 the right) arm 44b on the locking pin 46th
- the resiliently biased pin 46 can engage with its free end 46b in the corresponding recess 48 on the carrier 32. If this is the case, the double lever has sufficient clearance, so that the arm 44b of the double-armed lever 44 can rotate clockwise about the bearing point 44c. As a result, the arm 44a in the FIG. 4 displaced in the upward direction and a withdrawal of the release pin 42 from a corresponding recess on the carrier 32 for releasing a rotational movement of the support 36 is made possible.
- an additional thickening 42a is provided at the free end of the release bolt 42 (cf. FIG. 4 ), for example in the form of a screwed or welded nut or the like.
- a displacement of the stop means 52 can only take place when the double lever 44 back to its original position (in FIG. 4 shown) can be swung back, ie the release shaft 42 is returned to its retracted position.
- exactly one recess is also provided on the support 32 in the embodiment shown, which defines a zero position of the support 36 and into which the release bolt 42 can be inserted accordingly.
- stop bars 52 in the illustrated embodiment include upper and lower stop bars 52a and 52b, and the upper stop bars 52a can be slid relative to the lower stop bars 52b to provide sufficient space for the saw unit depending on the desired miter angle 20 to let go (see FIG. 3 ).
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- Life Sciences & Earth Sciences (AREA)
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- Sawing (AREA)
Description
Die Erfindung betrifft eine Anschlagvorrichtung, insbesondere für eine Kapp-Zugsäge gemäß dem Oberbregriff des Anspruchs 1, sowie eine Sägeanordnung mit einer solchen.
Mit Hilfe von Gehrungssägen ist es möglich, beispielsweise Elemente zum Auskleiden einer Zimmerecke, wie Sockelleisten oder dergleichen, auf Gehrung zu zu sägen. Hierzu wird in der bekannten Praxis zunächst der Winkel der Ecke gemessen. Anschließend wird die Säge auf die Hälfte des Winkels eingestellt (Winkelhalbierende) und eine entsprechende, an einen Anschlag angelegte Leiste kann auf Gehrung gesägt werden. Um die zweite komplementäre Leiste auf Gehrung zu sägen, wird die Säge in einem weiteren Schritt um den gemessenen Winkel in die gegenüberliegende Hälfte der Auflage geschwenkt und dann die komplementäre Leiste gesägt. In der Praxis hat sich dieses Verfahren als umständlich erwiesen. Weiterhin werden Fehler bei der Berechnung der Winkelhälften bei diesem Vorgehen erst beim Zusammenfügen der Leisten erkannt, d. h. nach dem Sägen, wenn eine Korrektur bereits nicht mehr möglich ist.
Um diesem Problem zu begegnen, ist aus der europäischen Patentanmeldung
Die Winkelhalbierende fällt dabei zusammen mit der Schnittebene, so dass es nunmehr ausreicht, den gewünschten Gesamtwinkel beispielsweise einer Raumecke mittels einer Winkelschmiege aufzunehmen und auf die Anschlagmittel zu übertragen.The invention relates to a stop device, in particular for a cross-cut saw according to the Oberbregriff of claim 1, and a sawing arrangement with such.
With the help of miter saws, it is possible, for example, to saw miter elements for lining a corner room, such as baseboards or the like. For this purpose, in the known practice, first the angle of the corner is measured. Subsequently, the saw is set to half the angle (bisector) and a corresponding, applied to a stop bar can be sawn miter. In order to miter the second complementary strip, the saw is pivoted in a further step by the measured angle in the opposite half of the support and then sawn the complementary bar. In practice, this method has proven to be cumbersome. Furthermore, errors in the calculation of the angle halves are detected in this procedure only when assembling the strips, ie after sawing, when a correction is already no longer possible.
To address this problem is from the European patent application
The bisecting line coincides with the cutting plane, so that it is now sufficient to absorb the desired total angle, for example, a corner of the room by means of an angle turn and transfer it to the stop means.
Eine vergleichbare Anordnung ist ferner auch aus der deutschen Gebrauchsmusterschrift
Die Druckschrift
Als Gehrungssäge kann, wie in der
The publication
As miter saw can, as in the
Weiterhin offenbart die
Schließlich ist auch aus der
Finally, also from the
Eine Aufgabe der vorliegenden Erfindung besteht daher darin, die aus dem Stand der Technik bekannte Anschlagvorrichtung weiter zu verbessern und eine einfache und schnelle Bedienbarkeit der Sägeanordnung zu gewährleisten.An object of the present invention is therefore to further improve the known from the prior art stop device and to ensure a simple and quick operation of the saw assembly.
Diese Aufgabe wird durch eine Anschlagvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Demgemäß wird eine Anschlagvorrichtung, insbesondere für eine Kapp-Zugsäge, vorgeschlagen, die einen Träger mit einer Auflage für ein zu bearbeitendes Werkstück sowie zwei Anschlagmittel umfasst, wobei die Anschlagmittel relativ zu dem Träger derart um eine gemeinsame Schwenkachse verlagerbar sind, dass eine Winkelhalbierende eines von diesen eingeschlossenen Winkels bei einer Verlagerung der Anschlagmittel ortsfest zum Träger verbleibt, und wobei zumindest ein Teil der Auflage zumindest abschnittsweise um eine senkrecht hierzu stehende Drehachse relativ zu dem Träger verdrehbar ist. Die zwei Anschlagmittel sind erfindungsgemäß über einen Verstellmechanismus miteinander gekoppelt.This object is achieved by a stop device with the features of claim 1. Accordingly, a stop device, in particular for a cross-cut saw, proposed, comprising a support with a support for a workpiece to be machined and two stop means, wherein the stop means relative to the carrier are displaceable about a common pivot axis such that an angle bisector of this included angle remains fixed to the carrier during a displacement of the stop means, and wherein at least part of the support is rotatable at least in sections about a rotation axis perpendicular thereto relative to the carrier. The two stop means are coupled to each other via an adjusting mechanism.
Eine Kapp-Zugsäge kombiniert dabei die Vorteile einer einfachen Kappsäge mit einem verschwenkbaren Sägeaggregat mit denen einer Zugsäge, die entlang einer Führung verschieblich geführt ist. Die Ausbildung mit einer Zugfunktion ermöglicht dabei insbesondere das Herstellen von Schnitten die länger sind als der Durchmesser des Sägeblatts, ohne dass das Werkstück hierfür relativ zu der Werkstückauflagefläche der Säge verschoben werden muss.A cross-cut saw combines the advantages of a simple chop saw with a swiveling saw unit with those of a saw, which is guided along a guide slidably. The training with a pull function allows in particular the production of cuts which are longer than the diameter of the saw blade, without the workpiece for this purpose has to be moved relative to the workpiece support surface of the saw.
Durch die zusätzliche Möglichkeit der Verdrehung eines Teils der Auflage relativ zu dem Träger und zu den Anschlagmitteln wird eine weitere Einstellmöglichkeit der Anschlagvorrichtung für den Anwender geschaffen, die ein besonders einfaches und schnelles Vorbereiten des Sägevorgangs ermöglicht. Dies ist insbesondere vorteilhaft, wenn als Gehrungssäge eine Kapp-Zugsäge zum Einsatz kommt.The additional possibility of rotation of a portion of the support relative to the carrier and the stop means a further adjustment of the stop device for the user is created, which allows a particularly simple and fast preparation of the sawing process. This is particularly advantageous when a miter saw is used as a miter saw.
Durch die Kopplung der Anschlagmittel über einen Verstellmechanismus ist eine Verstellung beider Anschlagmittel immer nur gleichzeitig möglich, wodurch auf einfache und kostengünstige Weise sichergestellt werden kann, dass die Position der Winkelhalbierenden eines von den Anschlagmitteln eingeschlossenen Winkels ortsfest zum Träger verbleibt, wenn die Anschlagmittel verlagert werden.By coupling the stop means via an adjusting an adjustment of both stop means is always possible only simultaneously, which can be ensured in a simple and cost-effective manner that the position of the bisector of an enclosed by the stop means angle remains stationary to the carrier when the stop means are displaced.
Die Anschlagvorrichtung kann ferner einen Verriegelungsmechanismus umfassen, der dazu eingerichtet ist, eine Verdrehung des drehbaren Teils der Auflage zu sperren, wenn die Anschlagmittel nicht in einer vordefinierten Nullstellung relativ zu dem Träger angeordnet sind.The stop device may further comprise a locking mechanism adapted to lock a rotation of the rotatable part of the support when the stop means are not arranged in a predefined zero position relative to the carrier.
Dabei kann vorgesehen sein, dass genau eine vordefinierte Nullstellung der Anschlagmittel relativ zu dem Träger eine Verdrehung des drehbaren Teils der Auflage ermöglichen. Alternativ können jedoch auch mehrere vordefinierte Nullstellungen der Anschlagmittel relativ zu dem Träger vorgesehen sein. Denkbar ist beispielsweise eine Nullstellung der Anschlagmittel relativ zu dem Träger, bei der die Anschlagmittel zwischen sich einen Winkel von 180° einschließen und somit gemeinsam eine Achse definieren. Je nach Anwendungsfall können jedoch auch weitere Nullstellungen, beispielsweise mit alternativen von den Anschlagmitteln eingeschlossenen Winkeln, insbesondere von 90° oder 270°, definiert sein. Ferner können die Anschlagmittel in einer vordefinierten Nullstellung gemeinsam eine Achse definieren, die mit einer Schneidebene des Sägeblatts einer Gehrungssäge zusammenfällt oder in einem vordefinierten Winkel geneigt hierzu steht.It can be provided that allow exactly a predefined zero position of the stop means relative to the carrier rotation of the rotatable part of the support. Alternatively, however, several predefined zero positions of the stop means may be provided relative to the carrier. It is conceivable, for example, a zero position of the stop means relative to the carrier, in which the stop means between them enclose an angle of 180 ° and thus jointly define an axis. Depending on the application, however, other zero positions, for example, with alternative enclosed by the stop means angles, in particular of 90 ° or 270 °, be defined. Further, the stop means in a predefined zero position together define an axis which coincides with a cutting plane of the saw blade of a miter saw or is inclined thereto at a predefined angle.
Alternativ oder zusätzlich kann die Anschlagvorrichtung ferner einen Verriegelungsmechanismus umfassen, der dazu eingerichtet ist, eine Verlagerung der Anschlagmittel zu sperren, wenn der drehbare Teil der Auflage nicht in einer vordefinierten Nullstellung relativ zu dem Träger angeordnet ist.Alternatively or additionally, the stop device may further comprise a locking mechanism which is adapted to lock a displacement of the stop means when the rotatable part of the support is not arranged in a predefined zero position relative to the carrier.
Vorliegend ist es also möglich, dass die Anschlagvorrichtung nur einen der vorstehend genannten Verriegelungsmechanismen, zwei separate Verriegelungsmechanismen oder einen gemeinsamen Verriegelungsmechanismus umfasst, wobei letzterer ferner eine gegenseitige Sperre der aus dem Kappsägebetrieb bekannten Tischverdrehung (Auflage relativ zu Träger) und einer Anschlagverstellung der Anschlagmittel bereitstellen kann.In the present case, it is therefore possible that the stop device comprises only one of the above-mentioned locking mechanisms, two separate locking mechanisms or a common locking mechanism, the latter can also provide a mutual barrier of known from the Kappsägebetrieb Tischverdrehung (support relative to support) and a stop adjustment of the stop means ,
Aufgrund der gegenseitigen Sperrung kann sichergestellt werden, dass die Sicherheit des Anwenders nicht durch die zusätzlichen Einstellmöglichkeiten der Sägeanordnung und damit auch durch unsinnige und insbesondere für den Anwender gefährliche Stellungen des Sägeblatts relativ zu dem zu bearbeitenden Werkstück gefährdet wird.Due to the mutual blocking can be ensured that the safety of the user is not endangered by the additional adjustment options of the saw assembly and thus by nonsensical and in particular dangerous to the user positions of the saw blade relative to the workpiece to be machined.
Es kann weiterhin vorgesehen sein, dass die Anschlagvorrichtung ferner einen Sperrmechanismus zum Lösen und Sperren des drehbaren Teils der Auflage aufweist, der einen Freigabebolzen umfasst, welcher in eine die Verdrehung des drehbaren Teils der Auflage sperrenden Stellung zumindest abschnittsweise in Eingriff mit letzterem und dem Träger steht. Erst durch Lösen der Eingriffsstellung des Freigabebolzens mit dem drehbaren Teil der Auflage und/oder dem Träger wird eine Verdrehung des drehbaren Teils der Auflage möglich. Beispielsweise kann ein solches Lösen des Freigabebolzens durch eine translatorische oder rotatorische Bewegung oder eine kombinierte translatorische und rotatorische Bewegung erfolgen.It may further be provided that the stop device further comprises a locking mechanism for releasing and locking the rotatable part of the support, which comprises a release bolt which is at least partially in engagement with the rotation of the rotatable part of the support position engaged with the latter and the carrier , Only by releasing the engagement position of the release bolt with the rotatable part of the support and / or the support is a rotation of the rotatable part of the support possible. For example, such a release of the release bolt by a translational or rotational movement or a combined translational and rotational movement take place.
Beispielsweise kann an dem Träger eine Vielzahl von Gehrungskerben oder andere Ausnehmungen vorgesehen sein, in die der Freigabebolzen einzugreifen vermag, um die Auflage relativ zu dem Träger gestuft und reproduzierbar zu fixieren.For example, a plurality of miter notches or other recesses may be provided on the carrier into which the release bolt is able to engage, in order to stably and reproducibly fix the support relative to the support.
Alternativ oder zusätzlich kann die Anschlagvorrichtung ferner einen Sperrmechanismus zum Lösen und Sperren des Verstellmechanismus der zwei Anschlagmittel aufweisen, der wenigstens einen Sperrbolzen umfasst, welcher in einer die Verlagerung der Anschlagmittel sperrenden Stellung zumindest abschnittsweise in Eingriff mit dem Träger und dem Verstellmechanismus steht. In gleicher Weise wie der Freigabebolzen kann auch der Sperrbolzen durch eine translatorische, rotatorische oder kombinierte translatorische und rotatorische Bewegung aus der Eingriffsstellung mit dem Träger und/oder dem Verstellmechanismus der Anschlagmittel verlagert werden und auf diese Weise eine Verstellung bzw. Verlagerung der Anschlagmittel mit Hilfe des Verstellmechanismus ermöglichen. Weiterhin kann auch bei dem Sperrmechanismus zum Lösen und Sperren des Verstellmechanismus der zwei Anschlagmittel an dem Träger eine Vielzahl von Ausnehmungen vorgesehen sein, in die der Sperrbolzen einzugreifen vermag, um die Anschlagmittel relativ zu dem Träger gestuft und reproduzierbar zu fixieren.Alternatively or additionally, the stop device may further comprise a locking mechanism for releasing and locking the adjusting mechanism of the two stop means, which comprises at least one locking pin, which in one the displacement the stop means blocking position is at least partially engaged with the carrier and the adjusting mechanism. In the same way as the release bolt and the locking pin can be displaced by a translational, rotary or combined translational and rotational movement from the engaged position with the carrier and / or the adjusting mechanism of the stop means and in this way an adjustment or displacement of the stop means with the aid of Enable adjustment mechanism. Furthermore, a plurality of recesses may also be provided in the locking mechanism for releasing and locking the adjusting mechanism of the two stop means on the carrier, in which the locking pin is able to intervene to the stop means relative to the carrier and to fix reproducible.
Es kann weiterhin vorgesehen sein, dass der Verriegelungsmechanismus ein Koppelglied umfasst, das den Freigabebolzen mit dem Sperrbolzen zu koppeln vermag. Bei dieser Ausgestaltungsform sind sinnvollerweise beide Verriegelungsmechanismen oder ein gemeinsamer d.h. kombinierter Verriegelungsmechanismus zum Sperren einer Verdrehung des drehbaren Teils der Auflage und zum Sperren einer Verlagerung der Anschlagmittel vorgesehen. Das Koppelglied dient dabei zur gegenseitigen Sperrung, indem es den Freigabebolzen mit dem Sperrbolzen wirktechnisch verbindet. Insbesondere kann das Koppelglied einen Doppelarmhebel umfassen, dessen erster Arm mit dem Freigabebolzen und dessen zweiter Arm mit dem Sperrbolzen gekoppelt ist. Eine Verlagerung des Freigabebolzens hat auf diese Weise eine Verlagerung des Koppelglieds zur Folge, die sich über den Doppelarmhebel auf den gekoppelten Sperrbolzen überträgt.It may further be provided that the locking mechanism comprises a coupling member which is able to couple the release bolt with the locking pin. In this embodiment, both locking mechanisms or a common i. combined locking mechanism for locking a rotation of the rotatable part of the support and for blocking a displacement of the stop means provided. The coupling member serves to block each other by connecting the release bolt with the locking pin actively. In particular, the coupling member may comprise a double-arm, the first arm is coupled to the release bolt and the second arm with the locking pin. A displacement of the release pin has in this way a displacement of the coupling member result, which transmits via the double-armed lever on the coupled locking pin.
Der Träger kann ferner wenigstens eine, vorzugsweise zwei Ausnehmungen aufweisen, in die der Sperrbolzen und/oder der Freigabebolzen einzugreifen vermögen, wenn sich die Anschlagmittel und/oder die Auflage in der vorgegebenen Nullstellung befinden.The carrier may further comprise at least one, preferably two recesses into which the locking pin and / or the release bolt are able to intervene when the stop means and / or the support are in the predetermined zero position.
Schließlich betrifft die vorliegende Erfindung auch eine Sägeanordnung umfassend ein Sägeaggregat sowie eine Anschlagvorrichtung, die die Merkmale der Ansprüche 1 bis 9 aufweist.Finally, the present invention also relates to a sawing arrangement comprising a saw unit and a stop device, which has the features of claims 1 to 9.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die beigefügten Figuren ein bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. In diesem Beispiel sind die in den Ansprüchen und in der Beschreibung einzeln erwähnten Merkmale in Kombination miteinander gezeigt. Der Fachmann wird jedoch selbstverständlich diese auch für sich genommen betrachten und zu weiteren sinnvollen Kombinationen oder Unterkombinationen zusammenfügen können.Further advantages, features and details of the invention will become apparent from the following description in which a preferred embodiment is described in detail with reference to the accompanying figures. In this example, the features mentioned individually in the claims and in the description are shown in combination with each other. However, the person skilled in the art will, of course, be able to consider these in isolation and combine them into further meaningful combinations or subcombinations.
Es zeigen schematisch:
- Figur 1
- eine isometrische Ansicht einer erfindungsgemäßen Sägeanordnung mit einer erfindungsgemäßen Anschlagvorrichtung, wobei die Anschlagmittel in einer ersten Stellung positioniert sind;
- Figur 2
- die erfindungsgemäße Sägeanordnung gemäß
Figur 1 , wobei die Anschlagmittel in einer zweiten Stellung positioniert sind; - Figur 3
- eine isometrische Ansicht der erfindungsgemäßen Sägeanordnung gemäß
Figuren 1 und2 , wobei das Sägeaggregat für einen Doppelgehrungsschnitt verschwenkt ist; und - Figur 4
- eine teilgeschnittene Ansicht der erfindungsgemäßen Sägeanordnung gemäß den
Figuren 1 bis 3 .
- FIG. 1
- an isometric view of a saw assembly according to the invention with a stop device according to the invention, wherein the stop means are positioned in a first position;
- FIG. 2
- the sawing arrangement according to the invention
FIG. 1 wherein the stop means are positioned in a second position; - FIG. 3
- an isometric view of the saw arrangement according to the invention according to
FIGS. 1 and2 wherein the saw unit is pivoted for a Doppelgehrungsschnitt; and - FIG. 4
- a partially sectioned view of the saw arrangement according to the invention according to the
FIGS. 1 to 3 ,
Die
Bei der gezeigten Sägeanordnung 10 handelt es sich um eine Kapp- und Gehrungssäge, wobei das Sägeaggregat 20 um das Gelenk 12 in Richtung zu der Anschlagvorrichtung 30 nach unten verschwenkt werden kann, um einen entsprechenden Schnitt auszuführen. Das Sägeaggregat 20 weist in üblicher Weise ein Sägeblatt 24a auf, das um eine Drehachse 18 rotierbar angebracht ist. Eine Schutzhaube 24b schützt den Anwender und weist zur einfacheren Bedienbarkeit zusätzlich einen Handgriff 24c auf. Angetrieben wird das Sägeblatt 24a über eine Antriebseinheit 26. Das Sägeaggregat 20 ist ferner über eine Zugführung 28 mittels einer Führungsbaugruppe 28b entlang der Zugstangen 28a verschiebbar gelagert.
Zusätzlich stützt sich das Sägeaggregat zusammen mit der Zugführung 28 über einen Haltearm 22 an einer drehbaren Auflage 36 der Anschlagvorrichtung 30 ab und kann um einen Gelenkbolzen 14 relativ zu der Anschlagvorrichtung 30 und der Auflage 36 durch Betätigung eines Handgriffs 16 (vergleiche
In addition, the saw unit is supported together with the
In der
In der
Die
Nachfolgend wird die erfindungsgemäße Anschlagvorrichtung 30 in ihrem Aufbau näher beschrieben. Diese setzt sich in der Art eines Drehtischs zusammen aus einem Träger 32, welcher in der gezeigten Ausführungsform vier Standfüße 34 umfasst, sowie einer relativ zu dem Träger 32 verdrehbaren Auflage 36, welche zugleich eine Auflagefläche 36a für ein zu bearbeitendes Werkstück (nicht dargestellt) bildet.Hereinafter, the
An dem Träger 32 sind konzentrisch angeordnete nutförmige Ausnehmungen 32a und 32b (angedeutet durch die strichlinierte Linie in den
Die Auflage 36 umfasst ferner einen Auslegerarm 36c sowie einen Schlitz 38, in dem das Sägeblatt 24a einzutauchen vermag. Über ein Betätigungselement 40 ist ein Sperrmechanismus zum Fixieren des drehbaren Auflage 36 bedienbar, über die die Auflage 36 relativ zu dem Träger 32 gestuft und reproduzierbar fixiert werden kann. Hierzu ist, wie in der
Die erfindungsgemäße Sägeanordnung 10 umfasst Anschlagmittel 50, auf deren Funktionsweise nachfolgend näher eingegangen werden soll. Die Anschlagmittel 50 umfassen Anschlagsleisten 52, die jeweils auf einem Anschlagsockel 54 relativ zu dem Träger 32 verlagerbar angeordnet sind (vgl.
Die Anschlagsockel 54 sind ferner in der Weise miteinander gekoppelt, dass infolge der manuellen Verstellung eines der beiden Anschlagmittel 50 das jeweils andere Anschlagmittel 50 um den winkelmäßig gleichen Betrag in entgegengesetzter Richtung verlagert wird. Wesentlich dabei ist, dass in der Betriebsstellung Leistensägen (vergleiche
Zusätzlich weist die Anschlagvorrichtung 30 erfindungsgemäß einen Sperrmechanismus zum Lösen und Sperren des Verstellmechanismus der zwei Anschlagmittel 50 auf, der einen Sperrbolzen 46 umfasst, welcher mit seinem freien Ende 46b in an dem Träger 32 vorgesehene Aufnahmeöffnungen und/oder Kerben 48 einzugreifen vermag (vergleiche
Um die Sicherheit bei der Bedienung und Anwendung der erfindungsgemäßen Sägeanordnung 10 bzw. der erfindungsgemäßen Anschlagvorrichtung 30 zu erhöhen, ist weiterhin ein Verriegelungsmechanismus vorgesehen, der die Auflage 36 in einer vordefinierten Nullstellung relativ zu dem Träger 32 sperrt, wenn die Sägeanordnung 10 in der Betriebsart Leistensägen genutzt werden soll und hierzu die Anschlagmittel 50 in einem von 180 Winkelgrad abweichenden Winkel zueinander angeordnet werden sollen. Auf diese Weise kann sichergestellt werden, dass die Winkelhalbierende des von den Anschlagleisten 52 eingeschlossenen Winkels mit der Schneidebene des Sägeblatts 24a zusammenfällt.In order to increase the safety in the operation and application of the
In bekannter Weise ist das Sägeaggregat 20 über den Haltearm 22 an der Auflage 36 angeordnet, so dass eine relative Verdrehung der Auflage 36 zu dem Träger 32 auch eine entsprechende relative Verlagerung des Sägeaggregats zu dem Träger 32 zur Folge hat.In known manner, the
Soll nun von der Betriebsart Leistensägen in den üblichen Kappsägemodus umgestellt werden, ist es erforderlich, die Anschlagleisten 52 in eine ebenfalls vordefinierte Nullstellung relativ zueinander zu bringen, in der sie einen Winkel von 180° zwischen sich einschließen (vergleich beispielsweise
Nur wenn sich die Anschlagmittel 52 in ihrer Nullstellung relativ zueinander und zu dem Träger 32 befinden, kann der federnd vorgespannte Bolzen 46 mit seinem freien Ende 46b in die entsprechende Ausnehmung 48 an dem Träger 32 eingreifen. Ist dies der Fall, hat der Doppelhebel ausreichend Spiel, so dass der Arm 44b des Doppelarmhebels 44 im Uhrzeigersinn um den Lagerpunkt 44c rotieren kann. Hierdurch wird der Arm 44a in der
Für eine entsprechende Sperrwirkung ist an dem freien Ende des Freigabebolzens 42 eine zusätzliche Verdickung 42a vorgesehen (vergleiche
Umgekehrt kann eine Verlagerung der Anschlagmittel 52 nur dann erfolgen, wenn der Doppelhebel 44 wieder in seine Ausgangsposition (in
Durch Vorsehen eines Verriegelungsmechanismus, der eine gegenseitige Sperrung der beiden Verstellmechanismen und damit Verstellmöglichkeiten der Auflage 36 und der Anschlagmittel 50 bereitstellt, wird sichergestellt, dass die gewünschten Normenkonformität bei Anwendung der erfindungsgemäßen Sägeanordnung 10 erreicht werden kann und zugleich, dass die Bedienersicherheit nicht durch absurde Stellungen des Sägeblatts 24a relativ zu der Anschlagvorrichtung 30 gefährdet wird.By providing a locking mechanism that provides a mutual blocking of the two adjustment mechanisms and thus adjustment of the
Schließlich sei der Vollständigkeit halber darauf hingewiesen, dass die Anschlagleisten 52 in der gezeigten Ausführungsform obere und untere Anschlagleisten 52a und 52b umfassen, wobei die oberen Anschlagleisten 52a relativ zu den unteren Anschlagleisten 52b verschoben werden können, um je nach dem gewünschten Gehrungswinkel ausreichend Raum für Sägeaggregat 20 zu lassen (vergleiche
Claims (9)
- Stop device (30) in particular for a mitre saw, comprising a carrier (32) with a support (36) which forms a support face (36a) for a workpiece to be machined, and two stop means (50), wherein the stop means (50) are displaceable relative to the carrier (32) about a common pivot axis such that an angle bisector of an angle enclosed thereby remains in a fixed position with respect to the carrier (32) when the stop means (50) are displaced, characterized in that at least a part of the support (36) is rotatable at least partially about an axis of rotation, perpendicular thereto, relative to the carrier (32) and to the stop means (50), and in that the two stop means (50) are coupled together via an adjusting mechanism.
- Stop device (30) according to Claim 1,
wherein the stop device (30) furthermore comprises a locking mechanism which is designed to prevent rotation of the rotatable part of the support (36) when the stop means (50) are not arranged in a predefined zero position relative to the carrier (32). - Stop device (30) according to either of Claims 1 and 2,
wherein the stop device (30) furthermore comprises a locking mechanism which is designed to prevent displacement of the stop means (50) when the rotatable part of the support (36) is not arranged in a predefined zero position relative to the carrier (32). - Stop device (30) according to one of the preceding claims,
wherein the stop device (30) furthermore comprises a blocking mechanism for releasing and blocking the rotatable part of the support (36), said blocking mechanism comprising a release pin (42) which is at least partially engaged with the rotatable part of the support (36) and the carrier (32) when said release pin (42) is in a position blocking the rotation of said rotatable part of the support (36). - Stop device (30) according to one of the preceding claims,
wherein the stop device (30) furthermore comprises a blocking mechanism for releasing and blocking the adjusting mechanism of the two stop means (50), said blocking mechanism comprising a blocking pin (46) which is at least partially engaged with the carrier (32) and the adjusting mechanism when said blocking pin (46) is in a position blocking the displacement of the stop means (50). - Stop device (30) according to Claims 4 and 5,
wherein the locking mechanism comprises a coupling member (44) which is able to couple the release pin (42) to the blocking pin (46). - Stop device (30) according to Claim 6,
wherein the coupling member comprises a double-arm lever (44), the first arm (44a) of which is coupled to the release pin (42) and the second arm (44b) of which is coupled to the blocking pin (46). - Stop device (30) according to one of Claims 4 to 7,
wherein the carrier (32) has at least one, preferably two or more recesses, in which the blocking pin (46) and/or the release pin (42) are able to engage. - Saw arrangement (10), in particular mitre saw, comprising a pivotable saw unit (20), a pull guide (22) and a stop device (30) having the features of Claims 1 to 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014105103.3A DE102014105103A1 (en) | 2014-04-10 | 2014-04-10 | stop device |
Publications (2)
Publication Number | Publication Date |
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EP2929993A1 EP2929993A1 (en) | 2015-10-14 |
EP2929993B1 true EP2929993B1 (en) | 2017-09-20 |
Family
ID=52780877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15161022.7A Active EP2929993B1 (en) | 2014-04-10 | 2015-03-26 | Stop device |
Country Status (2)
Country | Link |
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EP (1) | EP2929993B1 (en) |
DE (1) | DE102014105103A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11045887B2 (en) * | 2015-11-02 | 2021-06-29 | Tti (Macao Commercial Offshore) Limited | Miter saw |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US362338A (en) * | 1887-05-03 | Universal joiner | ||
US556658A (en) * | 1896-03-17 | Amoftewboraha | ||
US377299A (en) * | 1888-01-31 | Benjamin f | ||
DE299296C (en) * | 1914-03-28 | |||
GB1560619A (en) * | 1977-05-10 | 1980-02-06 | Rapid Maschbau Gmbh | Mitre box saw |
GB2208624B (en) * | 1987-08-11 | 1991-10-23 | Alan Cunnick | Mitre cutting cramps |
GB8820288D0 (en) * | 1988-08-26 | 1988-09-28 | Robinson V N | Mitring device |
DE9211135U1 (en) | 1992-08-20 | 1992-10-29 | Baugeschäft Ronald Friebel, O-7021 Leipzig | Mitre box |
DE19729552A1 (en) | 1997-07-10 | 1999-01-14 | Reich Maschf Gmbh Karl | Stop device for miter saw |
-
2014
- 2014-04-10 DE DE102014105103.3A patent/DE102014105103A1/en not_active Withdrawn
-
2015
- 2015-03-26 EP EP15161022.7A patent/EP2929993B1/en active Active
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Title |
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DE102014105103A1 (en) | 2015-10-15 |
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