EP3423248B1 - Stone splitter with reduced handling force - Google Patents
Stone splitter with reduced handling force Download PDFInfo
- Publication number
- EP3423248B1 EP3423248B1 EP16735597.3A EP16735597A EP3423248B1 EP 3423248 B1 EP3423248 B1 EP 3423248B1 EP 16735597 A EP16735597 A EP 16735597A EP 3423248 B1 EP3423248 B1 EP 3423248B1
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- height
- eccentric
- vertical support
- stone
- support members
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- 239000004575 stone Substances 0.000 title claims description 31
- 238000010276 construction Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000011109 contamination Methods 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
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
- B28D1/222—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by pressing, e.g. presses
- B28D1/223—Hand-held or hand-operated tools for shearing or cleaving
Definitions
- the invention relates to a stone splitter according to the preamble of claim 1.
- a generic stone splitter is from the DE 78 10 879 U1 known.
- the generic Steinspalter have proven excellent in practice as a robust and durable devices.
- a second opposing blade is arranged, stones can be precisely separated along a predetermined line with relatively little effort.
- the stone dust that occurs in everyday operation requires a robust construction of the stone splitters, as long as the desired longevity of the equipment is to be made possible.
- the invention has the object to improve a generic stone splitter to the effect that this allows a simplified operation, on the one hand as far as the height adjustment of the cutting edge and on the other hand as far as the force required to split the stone.
- the invention proposes two steps which produce a surprising, synergetic effect:
- a first step it is provided to simplify a first vertical movement of the cutting edge, namely its adjustment as a height basic setting.
- This height basic setting is used to adapt to the material to be processed, namely the layer thickness or height of the stones to be split.
- the guide means in the two columns are coupled together, so that not both columns must be adjusted separately in height; rather, the simultaneous height adjustment of both columns can be done with a single handling. This already causes a simplified handling of Steinspalters insofar as less effort is required for height adjustment of the cutting edge.
- a second height movement namely in carrying out the actual splitting operation, is then carried out by lowering the cutting edge over a stroke, which is low in comparison to the adjustment, which can be used for height default setting.
- this lifting movement takes place by means of the eccentric. While the adjustment can be made over several centimeters, the Exzenterhub is usually less than 10 millimeters.
- the spindle drives are with appropriate Game equipped.
- a free travel or idle stroke is initially covered, which compensates for the game in the management levels. After the idle stroke, the cutting edge lies against the stone. Only then does a further downward movement of the cutting edge cause the splitting process, so that this part of the total lifting movement following the idle stroke can be referred to as a splitting stroke.
- eccentrics are common, for example, with a stroke of 7.5 mm in practice. This stroke of the eccentric can be referred to as the total stroke, because he mentally divided into a share Leerhub and a share gap.
- the invention is based on the consideration that the stroke of the eccentric can be reduced: because of the synchronous adjustment in both columns, tilting is reduced or even completely avoided, and therefore the play in the guide elements of each column can be reduced. As a result, the blade abuts the stone after a correspondingly reduced idle stroke. With the same gap gap, which should allow the eccentric, thus the total stroke of the eccentric can be reduced due to the lower idle stroke required.
- the Exzenterhub is less than 7 mm, so that thereby the applied hand force on the actuator can already be reduced by about 7%, compared with a Exzenterhub of 7.5 mm.
- the eccentric even have a lifting height of at most 6 mm, so that in this way the power saving is at least 20%.
- a certain lifting height of the eccentric should not be exceeded for practical considerations, in order to compensate for tolerances in the height dimensions of the stones can and to ensure easy handling of the stones and the Steinspalters in practice.
- the guide means can be designed differently.
- spindle drives in the two columns have proven to be advantageous and they can also be used advantageously in a stone splitter designed according to the invention.
- each spindle be provided with a gear and these two gears can be coupled together by means of a revolving chain. In this way, only a single handle must be operated, which acts on the chain. This can be either another, third gear, which drives the chain, so that then the two spindles are driven by the chain and operated in the same direction.
- a stone splitter is generally designated 1, which has a frame 2. At one end, the frame 2 is provided with rollers 3, and at the opposite end it has feet 4, which are structurally simply combined to form a cross tube.
- the frame 2 carries a support platform 5, on which the stones can be placed, such as tiles or paving stones. In the illustrated embodiment, this support platform 5 is mounted spring-movable, so that they can give in from above acting pressure down.
- the support platform 5 is provided with a central slot through which a counter-blade 6 can extend when the support platform 5 is lowered accordingly far.
- the support platform 5 is rigidly secured and the counter-blade 6 slightly, for example, a half millimeter or a millimeter, beyond the support platform 5 also protrudes upwards.
- two columns 7 extend upwards.
- the columns 7 carry in their upper area together a knife holder 8, on which an upper cutting edge 9 is held.
- a total designated as an eccentric arrangement 10 is mounted on the knife holder 8 and on the one hand connected to the cutting edge 9 and on the other hand with an actuating element 11 in the form of a hand lever.
- the overall arrangement designated as eccentric 10 has in detail an axis 19, which protrudes on both sides beyond the blade holder 8 to the outside.
- the actuator 11 has a portion which is referred to as a handle 20, and a portion which is referred to as a fork 21.
- the fork 21 connects to the handle 20, extends around a column 7 and on both sides of the knife holder 8 over to the two ends of the axis 19. There, the two ends of the fork 21 each form a claw 22 which surrounds the axis 19 and is fixed by means of a locking pin 23 on the axis 19.
- the arrangement of the eccentric 10 on a contour piece 24 which connects to the axis 19 eccentrically and rotationally fixed, so that the contour piece 24 rotates when the axis 19 is rotated.
- the axis 19 and the contour piece 24 can be configured in one piece as sections of a single component.
- the axis 19 is rotatably mounted on the knife holder 8. By a pivoting movement of the actuating element 11, the axis 19 is rotated in its camp and takes the contour piece 24 with. Since the circumference of the contoured piece 24 extends eccentrically about the axis 19 and the contour piece 24 acts on the upper cutting edge 9, an eccentric stroke is effected in accordance with the degree of eccentricity, which determines the degree of downward movement of the cutting edge 9.
- guide elements are respectively arranged, which are configured as a spindle drive 12 and on the one hand a spindle 14 and on the other hand have a nut 15 meshing therewith.
- the two spindle drives 12 are coupled to each other, that on each of the two spindles 14, a schematically indicated gear 16 is arranged and these two gears 16 are connected to each other by means of a circumferential, dash-dotted lines indicated chain 17.
- a protective hood 25 surrounds the gears 16 and the chain 17.
- a common handle 18 serves to adjust the two guide elements in both columns 7 synchronously.
- the handle 18 is designed as a handle that can perform a rotational movement immediately about the axis of the spindle drive 12. Deviating from this, the handle 18 as a handwheel, as a crank o. The like. Be configured, and their movement can take place about an axis other than the spindle drive 12, for example by means of a bevel gear, it can be done transversely thereto. And while the handle 18 in the illustrated embodiment acts directly on the axis of the spindle drive 12, it may deviate acting on it via gear means, or it can act by means of a gear on the chain 17 and thereby be remote from a spindle 14, for example between the two columns. 7
- the relevant spindle 14 is set directly in rotation, so that the knife holder 8 is accordingly adjusted relative to the lower frame 2 and the lower support platform 5 in height.
- this spindle 14 which is directly actuated by the handle 18, the gear 16 located on this spindle 14 rotates. It transmits the rotational movement by means of the chain 17 to the second gear 16 of the second spindle drive 12, so that the guide means of the second Spindle 14 are operated synchronously with the guide means of the first spindle 14 shown on the left. Tilting of the knife holder 8 is excluded in this way and the construction of the Steinspalters 1 can be interpreted in this respect with less play.
- the eccentric 10 has a lifting height of less than 7 mm, in the illustrated embodiment, a lifting height of 6 mm.
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- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
Die Erfindung betrifft einen Steinspalter nach dem Oberbegriff des Anspruchs 1.The invention relates to a stone splitter according to the preamble of claim 1.
Ein gattungsgemäßer Steinspalter ist aus der
Die gattungsgemäßen Steinspalter haben sich in der Praxis hervorragend bewährt als robuste und langlebige Geräte. Insbesondere wenn unterhalb der Schneide, auf der Tragplattform, eine zweite gegenüberliegende Schneide angeordnet ist, lassen sich Steine mit vergleichsweise geringem Kraftaufwand präzise entlang einer vorbestimmten Linie trennen. Der im Alltagsbetrieb auftretende Steinstaub erzwingt eine robuste Konstruktion der Steinspalter, sofern die gewünschte Langlebigkeit der Geräte ermöglicht werden soll.The generic Steinspalter have proven excellent in practice as a robust and durable devices. In particular, if below the cutting edge, on the support platform, a second opposing blade is arranged, stones can be precisely separated along a predetermined line with relatively little effort. The stone dust that occurs in everyday operation requires a robust construction of the stone splitters, as long as the desired longevity of the equipment is to be made possible.
Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Steinspalter dahingehend zu verbessern, dass dieser eine vereinfachte Bedienung ermöglicht, einerseits was die Höhenverstellung der Schneide angeht und andererseits was den zum Spalten des Stein erforderlichen Kraftaufwand angeht.The invention has the object to improve a generic stone splitter to the effect that this allows a simplified operation, on the one hand as far as the height adjustment of the cutting edge and on the other hand as far as the force required to split the stone.
Diese Aufgabe wird durch einen Steinspalter mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.This object is achieved by a stone splitter with the features of claim 1. Advantageous embodiments are described in the subclaims.
Die Erfindung schlägt mit anderen Worten zwei Schritte vor, die einen überraschenden, synergetischen Effekt bewirken:
Als erster Schritt ist vorgesehen, eine erste Höhenbewegung der Schneide zu vereinfachen, nämlich ihre Verstellung als Höhen-Grundeinstellung. Diese Höhen-Grundeinstellung dient der Anpassung an das zu verarbeitende Material, nämlich an die Schichtdicke bzw. Höhe der zu spaltenden Steine. Vorschlagsgemäß sind die Führungsmittel in den beiden Säulen miteinander gekoppelt, so dass nicht beide Säulen separat in der Höhe eingestellt werden müssen; vielmehr kann mit einer einzigen Handhabung die gleichzeitige Höheneinstellung beider Säulen erfolgen. Dies bewirkt bereits eine vereinfachte Handhabung des Steinspalters insofern, als zur Höhen-Grundeinstellung der Schneide weniger Aufwand erforderlich ist.In other words, the invention proposes two steps which produce a surprising, synergetic effect:
As a first step, it is provided to simplify a first vertical movement of the cutting edge, namely its adjustment as a height basic setting. This height basic setting is used to adapt to the material to be processed, namely the layer thickness or height of the stones to be split. According to the proposal, the guide means in the two columns are coupled together, so that not both columns must be adjusted separately in height; rather, the simultaneous height adjustment of both columns can be done with a single handling. This already causes a simplified handling of Steinspalters insofar as less effort is required for height adjustment of the cutting edge.
Eine zweite Höhenbewegung, nämlich bei der Durchführung des eigentlichen Spaltvorgangs, erfolgt anschließend durch das Absenken der Schneide über einen Hubweg, der gering ist im Vergleich zu dem Verstellweg, welcher zur Höhen-Grundeinstellung genutzt werden kann. In an sich bekannter Weise erfolgt diese Hubbewegung mittels des Exzenters. Während der Verstellweg über mehrere Zentimeter erfolgen kann, beträgt der Exzenterhub üblicherweise weniger als 10 Millimeter.A second height movement, namely in carrying out the actual splitting operation, is then carried out by lowering the cutting edge over a stroke, which is low in comparison to the adjustment, which can be used for height default setting. In known manner, this lifting movement takes place by means of the eccentric. While the adjustment can be made over several centimeters, the Exzenterhub is usually less than 10 millimeters.
Aufgrund der rauen Betriebsbedingungen in der Praxis und des auftretenden Steinstaubs ist es bislang üblich, die Höhenverstellbarkeit der Säule mit entsprechend robust ausgestalteten und mit einem gewissen Spiel arbeitenden Führungselementen zu ermöglichen, beispielsweise mit einem Spindeltrieb in jeder Säule. Um bei der separaten Höhenverstellung beider Säulen ein Verkanten auszuschließen, sind die Spindeltriebe mit entsprechendem Spiel ausgestattet. Beim Betätigen des Exzenters, beispielsweise mittels eines Handhebels, um die Schneide auf den Stein abzusenken und den Stein zu spalten, wird daher üblicherweise zunächst ein Leerweg bzw. Leerhub zurückgelegt, der das Spiel in den Führungsebenen ausgleicht. Nach dem Leerhub liegt die Schneide dem Stein an. Erst anschließend bewirkt eine weitere Abwärtsbewegung der Schneide den Spaltvorgang, so dass dieser an den Leerhub anschließende Anteil der gesamten Hubbewegung als Spalthub bezeichnet werden kann. Um zunächst einen ausreichen großen Leerhub und anschließend einen wirkungsvollen Spalthub zu ermöglichen, sind Exzenter beispielsweise mit einem Hub von 7,5 mm in der Praxis üblich. Dieser Hub des Exzenters kann als Gesamthub bezeichnet werden, weil er sich gedanklich in einen Anteil Leerhub und einen Anteil Spalthub aufteilen lässt.Due to the harsh operating conditions in practice and the stone dust occurring, it has hitherto been customary to enable the height adjustment of the column with correspondingly robust and with a certain play operating guide elements, for example with a spindle drive in each column. In order to prevent tilting in the separate height adjustment of both columns, the spindle drives are with appropriate Game equipped. When pressing the eccentric, for example by means of a hand lever to lower the cutting edge on the stone and to split the stone, therefore, usually a free travel or idle stroke is initially covered, which compensates for the game in the management levels. After the idle stroke, the cutting edge lies against the stone. Only then does a further downward movement of the cutting edge cause the splitting process, so that this part of the total lifting movement following the idle stroke can be referred to as a splitting stroke. In order to initially allow a sufficiently large idle stroke and then an effective splitting stroke, eccentrics are common, for example, with a stroke of 7.5 mm in practice. This stroke of the eccentric can be referred to as the total stroke, because he mentally divided into a share Leerhub and a share gap.
Die Erfindung geht von der Überlegung aus, dass der Hub des Exzenters reduziert werden kann: aufgrund der Synchronverstellung in beiden Säulen ist eine Verkantung reduziert oder sogar völlig vermieden, und daher kann das Spiel in den Führungselementen jeder Säule verringert werden. Daraus resultiert, dass die Schneide bereits nach einem dementsprechend reduzierten Leerhub dem Stein anliegt. Bei gleich großem Spalthub, den der Exzenter ermöglichen soll, kann folglich der Gesamthub des Exzenters aufgrund des geringeren erforderlichen Leerhubs verringert werden. Je geringer der Hub des Exzenters bemessen werden kann, desto geringer ist aufgrund des Hebelverhältnisses die aufzuwendende Kraft am Betätigungselement, um eine bestimmte Kraft auf den Stein einwirken zu lassen. Bei gleichen Steinen und einer ansonsten gleichen Konstruktion des Steinspalters kann also durch die Verringerung des Exzenter-Hubs in demselben prozentualen Maß die zum Spalten des betreffenden Steins erforderliche Kraft reduziert werden.The invention is based on the consideration that the stroke of the eccentric can be reduced: because of the synchronous adjustment in both columns, tilting is reduced or even completely avoided, and therefore the play in the guide elements of each column can be reduced. As a result, the blade abuts the stone after a correspondingly reduced idle stroke. With the same gap gap, which should allow the eccentric, thus the total stroke of the eccentric can be reduced due to the lower idle stroke required. The lower the stroke of the eccentric can be dimensioned, the lower is due to the lever ratio, the force to be applied to the actuator to allow a certain force to act on the stone. For the same stones and an otherwise identical construction of the stone splitter can thus be reduced by reducing the eccentric stroke in the same percentage of the force required to split the stone in question.
Vorschlagsgemäß ist daher als zweiter Schritt vorgesehen, dass der Exzenterhub weniger als 7 mm beträgt, so dass dadurch die aufzubringende Handkraft am Betätigungselement bereits um etwa 7 % reduziert werden kann, verglichen mit einem Exzenterhub von 7,5 mm. Vorteilhaft kann der Exzenter sogar eine Hubhöhe von höchstens 6 mm aufweisen, so dass hierdurch die Krafteinsparung wenigstens 20 % beträgt.According to the proposal is therefore provided as a second step that the Exzenterhub is less than 7 mm, so that thereby the applied hand force on the actuator can already be reduced by about 7%, compared with a Exzenterhub of 7.5 mm. Advantageously, the eccentric even have a lifting height of at most 6 mm, so that in this way the power saving is at least 20%.
Eine gewisse Hubhöhe des Exzenters sollte aus praktischen Erwägungen nicht unterschritten werden, um Toleranzen bei den Höhenabmessungen der Steine ausgleichen zu können und eine einfache Handhabung der Steine und des Steinspalters in der Praxis zu gewährleisten. Eine Reduzierung der Hubhöhe auf höchstens 6 mm, also so weit, dass 6 mm Exzenterhub nicht unterschritten werden, stellt dies sicher und ermöglicht, dass zur Spaltung von Steinen 80 % oder noch weniger der Handkraft aufgewendet werden muss, verglichen mit der bei einem gattungsgemäßen Steinspalter erforderlichen Handkraft, wenn der Exzenter dieses gattungsgemäßen Steinspalters eine Hubhöhe von 7,5 mm oder mehr aufweist.A certain lifting height of the eccentric should not be exceeded for practical considerations, in order to compensate for tolerances in the height dimensions of the stones can and to ensure easy handling of the stones and the Steinspalters in practice. A reduction in the lifting height to a maximum of 6 mm, so far that 6 mm Exzenterhub not be exceeded, this ensures and allows for the splitting of stones 80% or less of the hand force must be spent compared with that of a generic Steinspalter required manual force when the eccentric of this generic Steinspalters has a lifting height of 7.5 mm or more.
Die Führungsmittel können unterschiedlich ausgestaltet sein. In der Praxis haben sich, wie weiter oben bereits erläutert, Spindeltriebe in den beiden Säulen als vorteilhaft herausgestellt und diese können auch bei einem erfindungsgemäß ausgestalteten Steinspalter vorteilhaft Verwendung finden.The guide means can be designed differently. In practice, as already explained above, spindle drives in the two columns have proven to be advantageous and they can also be used advantageously in a stone splitter designed according to the invention.
Zur Kopplung der beiden Führungsmittel in den beiden Säulen kann, wenn die Führungsmittel als Spindeltriebe ausgestaltet sind, jede Spindel mit einem Zahnrad versehen sein und diese beiden Zahnräder können mittels einer umlaufenden Kette miteinander gekoppelt sein. Auf diese Weise muss nur eine einzige Handhabe betätigt werden, welche nämlich auf die Kette einwirkt. Dies kann entweder ein weiteres, drittes Zahnrad sein, welches die Kette antreibt, so dass dann die beiden Spindeln durch die Kette angetrieben und in gleicher Drehrichtung betätigt werden. Es kann jedoch auch zu Gunsten einer möglichst einfachen Konstruktion des Steinspalters vorgesehen sein, unmittelbar an einer der beiden Spindeln die Handhabe vorzusehen, so dass eine Spindel direkt mittels der Handhabe betätigt wird und die andere Spindel mittels der Kette synchron angetrieben wird, so dass auch in diesem Fall eine gleiche Verstellung beider Führungsmittel gleichzeitig mittels der einen Handhabe erfolgt.For coupling the two guide means in the two columns can, if the guide means are designed as spindle drives, each spindle be provided with a gear and these two gears can be coupled together by means of a revolving chain. In this way, only a single handle must be operated, which acts on the chain. This can be either another, third gear, which drives the chain, so that then the two spindles are driven by the chain and operated in the same direction. However, it may also be provided in favor of the simplest possible construction of the stone splitter, directly Provide the handle on one of the two spindles, so that a spindle is actuated directly by means of the handle and the other spindle is driven synchronously by means of the chain, so that in this case a same adjustment of both guide means simultaneously by means of a handle.
Ein Ausführungsbeispiel der Erfindung wird anhand der rein schematischen Darstellung nachfolgend näher erläutert.An embodiment of the invention will be explained in more detail below with reference to the purely schematic representation.
In der Zeichnung ist mit 1 insgesamt ein Steinspalter bezeichnet, der ein Gestell 2 aufweist. An einem Ende ist das Gestell 2 mit Laufrollen 3 versehen, und am gegenüberliegenden Ende weist es Standfüße 4 auf, die konstruktiv einfach zu einem Querrohr zusammengefasst sind. Das Gestell 2 trägt eine Tragplattform 5, auf welche die Steine aufgelegt werden können, beispielsweise Fliesen oder Pflastersteine. Bei dem dargestellten Ausführungsbeispiel ist diese Tragplattform 5 federbeweglich gelagert, so dass sie bei von oben einwirkendem Druck nach unten nachgeben kann. Die Tragplattform 5 ist mit einem mittleren Schlitz versehen, durch den sich eine Gegenschneide 6 erstrecken kann, wenn die Tragplattform 5 dementsprechend weit abgesenkt ist.In the drawing, a stone splitter is generally designated 1, which has a
Abweichend vom dargestellten Ausführungsbeispiel kann vorgesehen sein, dass die Tragplattform 5 starr befestigt ist und die Gegenschneide 6 geringfügig, beispielsweise einen halben Millimeter oder einen Millimeter, über die Tragplattform 5 hinaus nach oben ragt.Notwithstanding the illustrated embodiment can be provided that the
Vom Gestell 2 aus erstrecken sich zwei Säulen 7 nach oben. Die Säulen 7 tragen in ihrem oberen Bereich gemeinsam einen Messerhalter 8, an dem eine obere Schneide 9 gehalten ist. Eine insgesamt als Exzenter 10 bezeichnete Anordnung ist am Messerhalter 8 gelagert und einerseits mit der Schneide 9 verbunden sowie andererseits mit einem Betätigungselement 11 in Form eines Handhebels.From the
Die insgesamt als Exzenter 10 bezeichnete Anordnung weist im Einzelnen eine Achse 19 auf, die beidseitig über den Messerhalter 8 nach außen hinausragt. Das Betätigungselement 11 weist einen Abschnitt auf, der als Handhabe 20 bezeichnet ist, sowie einen Abschnitt, der als Gabel 21 bezeichnet ist. Die Gabel 21 schließt an die Handhabe 20 an, verläuft um eine Säule 7 und beiderseits an dem Messerhalter 8 vorbei bis zu den beiden Enden der Achse 19. Dort bilden die beiden Enden der Gabel 21 jeweils eine Klaue 22, welche die Achse 19 umgreift und mittels eines Sicherungsstiftes 23 an der Achse 19 festgelegt ist. Zwischen den beiden äußeren, in die Klauen 22 ragenden Enden der Achse 19 weist die Anordnung des Exzenters 10 ein Konturstück 24 auf, welches an die Achse 19 exzentrisch und drehfest anschließt, so dass sich das Konturstück 24 dreht, wenn die Achse 19 gedreht wird. Die Achse 19 und das Konturstück 24 können einteilig als Abschnitte eines einzigen Bauteils ausgestaltet sein.The overall arrangement designated as eccentric 10 has in detail an
Die Achse 19 ist am Messerhalter 8 drehbar gelagert. Durch eine Schwenkbewegung des Betätigungselements 11 wird die Achse 19 in ihrem Lager gedreht und nimmt das Konturstück 24 mit. Da der Umfang des Konturstücks 24 exzentrisch um die Achse 19 verläuft und das Konturstück 24 auf die obere Schneide 9 einwirkt, wird entsprechend dem Maß der Exzentrizität ein Exzenterhub bewirkt, der das Maß für die Abwärtsbewegung der Schneide 9 bestimmt.The
In den Säulen 7 sind jeweils Führungselemente angeordnet, die als Spindeltrieb 12 ausgestaltet sind und einerseits eine Spindel 14 und andererseits eine damit kämmende Mutter 15 aufweisen. Die beiden Spindeltriebe 12 sind dadurch miteinander gekoppelt, dass auf jeder der beiden Spindeln 14 ein schematisch angedeutetes Zahnrad 16 angeordnet ist und diese beiden Zahnräder 16 mittels einer umlaufenden, strichpunktiert angedeuteten Kette 17 miteinander verbunden sind. Zum Schutz gegen Verschmutzungen sowie als Schutz für den Anwender umgibt eine Schutzhaube 25 die Zahnräder 16 und die Kette 17.In the
Eine gemeinsame Handhabe 18 dient dazu, die beiden Führungselemente in beiden Säulen 7 synchron zu verstellen. Bei dem dargestellten Ausführungsbeispiel ist die Handhabe 18 als Handgriff ausgestaltet, der eine Drehbewegung unmittelbar um die Achse des Spindeltriebs 12 ausführen kann. Abweichend davon kann die Handhabe 18 als Handrad, als Kurbel o. dgl. ausgestaltet sein, und ihre Bewegung kann um eine andere Achse als die des Spindeltriebs 12 erfolgen, beispielsweise mittels eines Kegelradgetriebes kann sie quer dazu erfolgen. Und während die Handhabe 18 bei dem dargestellten Ausführungsbeispiel unmittelbar auf die Achse des Spindeltriebs 12 einwirkt, kann sie abweichend davon über Getriebemittel darauf einwirken, oder sie kann mittels eines Zahnrades auf die Kette 17 einwirken und dabei von einer Spindel 14 entfernt angeordnet sein, beispielsweise zwischen den beiden Säulen 7.A
Durch Betätigung der Handhabe 18 wird die betreffende Spindel 14 unmittelbar in Drehung versetzt, so dass der Messerhalter 8 dementsprechend gegenüber dem unteren Gestell 2 bzw. der unteren Tragplattform 5 in der Höhe verstellt wird. Zusammen mit dieser Spindel 14, die von der Handhabe 18 unmittelbar betätigt wird, dreht sich das auf dieser Spindel 14 befindliche Zahnrad 16. Es überträgt die Drehbewegung mittels der Kette 17 auf das zweite Zahnrad 16 des zweiten Spindeltriebs 12, so dass die Führungsmittel der zweiten Spindel 14 synchron mit den Führungsmitteln der ersten, links dargestellten Spindel 14 betätigt werden. Ein Verkanten des Messerhalters 8 ist auf diese Weise ausgeschlossen und die Konstruktion des Steinspalters 1 kann diesbezüglich mit weniger Spiel ausgelegt werden.By actuation of the
Aus diesem Grund weist der Exzenter 10 eine Hubhöhe von weniger als 7 mm auf, bei dem dargestellten Ausführungsbeispiel eine Hubhöhe von 6 mm.For this reason, the eccentric 10 has a lifting height of less than 7 mm, in the illustrated embodiment, a lifting height of 6 mm.
Claims (4)
- Stone splitter (1),
having two height-adjustable vertical support members (7),
a support plate (5) disposed between the two vertical support members (7) and a cutter blade (9) held above the support plate (5) and on the two vertical support members (7),
wherein the cutter blade (9) can be set at a basic height above the support plate (5) by means of the vertical support members (7) and the height of the cutter blade (9) can be adjusted relative to this basic height by means of an eccentric (10),
and having an operating element (11) that acts on the eccentric (10) to adjust the height of the cutter blade (9), wherein guiding means are disposed in each of the two vertical support members (7) to adjust the height of each vertical support member (7),
characterised in that the means of guiding the two vertical support members (7) are coupled together such that the guiding means can be operated in the same way by means of a common handle (18) and that the eccentric (10) enables a lifting height of less than 7 mm. - Stone splitter in accordance with claim 1, characterised in that the eccentric (10) enables a lifting height of not more than 6 mm.
- Stone splitter in accordance with claim 1 or 2, characterised in that the means of guiding the two vertical support members are configured as spindle drives (12).
- Stone splitter in accordance with claim 3, characterised in that the spindles (14) of the spindle drives (12) are each provided with a sprocket (16) and are coupled together by a rotating chain (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202016101198.1U DE202016101198U1 (en) | 2016-03-04 | 2016-03-04 | Stone splitter with reduced handling force |
| PCT/EP2016/064406 WO2017148543A1 (en) | 2016-03-04 | 2016-06-22 | Stone splitter with reduced handling force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3423248A1 EP3423248A1 (en) | 2019-01-09 |
| EP3423248B1 true EP3423248B1 (en) | 2019-10-09 |
Family
ID=56081850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16735597.3A Active EP3423248B1 (en) | 2016-03-04 | 2016-06-22 | Stone splitter with reduced handling force |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3423248B1 (en) |
| DE (1) | DE202016101198U1 (en) |
| WO (1) | WO2017148543A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227909B (en) * | 2018-10-27 | 2023-06-20 | 东岳机械股份有限公司 | Steel wire swing balance driving device based on steam curing block cutting machine |
| CN111186038A (en) * | 2020-03-24 | 2020-05-22 | 上海中息信息科技有限公司 | Home decoration fluting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2053043A (en) * | 1936-02-21 | 1936-09-01 | Patterson Alex Ross | Stone cutting or breaking machine |
| FR1429688A (en) * | 1965-03-31 | 1966-02-25 | Improvement in machines for cutting hard materials | |
| NL177807C (en) | 1978-02-17 | 1985-12-02 | Vennootschap Onder Fa Abbink E | STONE CLOVER. |
| DE202012102920U1 (en) * | 2012-08-03 | 2012-10-16 | Almi Machinefabriek Vriezenveen B.V. | Stonecleaver |
-
2016
- 2016-03-04 DE DE202016101198.1U patent/DE202016101198U1/en not_active Expired - Lifetime
- 2016-06-22 WO PCT/EP2016/064406 patent/WO2017148543A1/en active Application Filing
- 2016-06-22 EP EP16735597.3A patent/EP3423248B1/en active Active
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017148543A1 (en) | 2017-09-08 |
| EP3423248A1 (en) | 2019-01-09 |
| DE202016101198U1 (en) | 2016-05-04 |
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