EP0006253B1 - Reciprocating marble, granite or other hardstone saw - Google Patents

Reciprocating marble, granite or other hardstone saw Download PDF

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Publication number
EP0006253B1
EP0006253B1 EP79200245A EP79200245A EP0006253B1 EP 0006253 B1 EP0006253 B1 EP 0006253B1 EP 79200245 A EP79200245 A EP 79200245A EP 79200245 A EP79200245 A EP 79200245A EP 0006253 B1 EP0006253 B1 EP 0006253B1
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EP
European Patent Office
Prior art keywords
cutting blade
blade
flywheels
members
flexible
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.)
Expired
Application number
EP79200245A
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German (de)
French (fr)
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EP0006253A1 (en
Inventor
Mario Sartori
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Individual
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Individual
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Publication date
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Priority to AT79200245T priority Critical patent/ATE5697T1/en
Publication of EP0006253A1 publication Critical patent/EP0006253A1/en
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Publication of EP0006253B1 publication Critical patent/EP0006253B1/en
Expired legal-status Critical Current

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    • 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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades

Definitions

  • the present invention aims to achieve a saw according to claim 1 with reciprocating movement for the work of marble, granite and other hard stones, mainly remarkable in that it comprises a straight cutting blade animated by a back-and-forth movement. comes under the effect of two pulleys or oscillating flywheels, which act on a flexible return member connected to the aforementioned blade.
  • the flexible return member is made up of two elements connected to each other by a straight blade, hereinafter called a tension blade, arranged on the opposite side from the cutting blade.
  • the tension blade is located in the same plane as the cutting blade so as to be able to thus penetrate the cut already made by said blade and therefore allow the work of blocks of great thickness.
  • the oscillating pulleys or flywheels can extend over less than 360 ° because their pendular rotary movement is angularly limited.
  • the connection between the flexible return members and the cutting blade on the one hand, the tension blade on the other hand, is produced using double jaw devices described in detail below.
  • the oscillating angular movement of the pulleys or handwheels can be obtained in any suitable manner, for example using a connecting rod and crank mechanism or the like.
  • the novelty of the present invention is that the guide of the blade is obtained by rollers fixed on the sliding jaws on movable rails along the frame, said sliding members being constituted by two jaws oriented perpendicularly with respect to the other and integral with movable shoes cooperating with said jaws, which provides perfect positioning of the cutting blade during the work of marble, granite and other hard stones.
  • the reciprocating saw comprises a cutting blade 1 (fig. 1) which in the particular case considered is arranged vertically, being connected by guiding devices with double jaws 2 and 3 to flexible return members 4 and 5 constituted for example by blades, cables or the like, supported by oscillating flywheels 6 and 7; at their opposite end, the members 4 and 5 are joined by devices similar 8 and 9 to a tension blade 10, also oriented vertically in the example envisaged, so as to be in the same plane as the blade 1.
  • the tension blade 10 can penetrate the cut previously made by the blade 1 thereby allowing the cutting of blocks of great height. It goes without saying, however, that we would remain within the scope of the invention in the case where the tension blade 10 would be in the same plane as the ends of the flexible return members 4 and 5. In the same way the organ return hose can be unique, thus acting as a tension element between the two flywheels, on the side opposite that of the cutting blade.
  • the assembly formed by the two flywheels 6 and 7, the deflection members 4 and 5, the cutting blade 1 and the tension blade 10 is movable on bearing columns 11 and 12 by means of vertical guides mounted on said columns and associated with a mechanism for controlling the movement of advance of the cutting blade, this mechanism being for example actuated using vertical screws or other equivalent systems.
  • the alternating angular movement of the flywheels 6 and 7 is ensured, in the illustrated embodiment, by a mechanism comprising a connecting rod 13 and a crank 14, this mechanism being connected by a belt transmission to an electric motor 15 (fig. 2 and 3).
  • the crank 14 is preferably formed by two elements 14 and 14 'so that the rod 13, disposed ente said elements, acts on the steering wheel 6 while remaining in the space included in the empty angular part thereof.
  • the connecting rod 13 can be provided in the form of two separate parts referenced 13 and 13 ′ in FIG. 3.
  • Another characteristic feature relates to the means intended to maintain the guidance at the level of the assembly devices provided between the cutting blade and the return member or, in other cases, between the devices 8 and 9, the return members. 4 and 5 and the tension blade 10.
  • These devices can be guided by means of pairs of rollers arranged in two planes oriented perpendicular to each other, which rollers move on guides suitably provided in the movable frames which support flywheels or pulleys 6 and 7.
  • a non-limiting example has been shown of a type of guide and assembly device with double jaws which is particularly suitable.
  • This device comprises a first jaw 18 oriented perpendicular to a second 19 so as to grip respectively the cutting blade 1 or the tension blade 10 on one side, one of the return members 4 and 5 on the other.
  • Each device further comprises guide pads 20 and 21 fitted with sliding members 22 and 23 which bear on inclined planes 24 and 25 provided on the corresponding parts of the frame of the machine carrying the flywheels or pulleys.
  • Two opposite rollers 27 and 28 mounted idly on this frame guide the cutting blade 10 during work.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Sawing (AREA)

Abstract

1. Reciprocating marble, granite or other hard-stone saw, with cutting blade (1) coupled to flexible returning members (4 and 5), which are wound partially about two opposed pulleys or flywheels (6, 7) situated at one side and the other of the cutting blade and in the same plane as the latter, the alternating movement of rotation of the two flywheels one of which is actuated by a crank-connecting rod system driven by a motor giving rise to the alternating rectilinear movement of the cutting blade, in opposition to which is disposed a tension blade (10) situated in the same plane and which is coupled thereto by flexible members (4 and 5) carried by the flywheels (6 and 7), characterised in that the coupling between the flexible members and the cutting blade at one end and the tension blade at the other is assured bymeans of assemblies constituted by two jaws (18 and 19) disposed perpendicularly one with respect to the other and fast to movable runners (20 and 21) cooperating with sliding members (22 and 23) which move on guide means (24 and 25) provided on the frame supporting the corresponding flywheel (6 or 7), the sliding members (22 and 23) being constituted by two inclined planes (24 and 25) and the movable runners by conical rollers (22 and 23) bearing on the said two inclined planes (24 and 25).

Description

La présente invention vise à réaliser une scie conforme à la revendication 1 à mouvement alternatif pour le travail des marbres, granits et autres pierres dures, principalement remarquable en ce qu'elle comporte une lame coupante rectiligne animée d'un déplacement en va-et-vient sous l'effet de deux poulies ou volants oscillants, lesquels agissent sur un organe flexible de renvoi relié à la lame précitée.The present invention aims to achieve a saw according to claim 1 with reciprocating movement for the work of marble, granite and other hard stones, mainly remarkable in that it comprises a straight cutting blade animated by a back-and-forth movement. comes under the effect of two pulleys or oscillating flywheels, which act on a flexible return member connected to the aforementioned blade.

Conformément à un auttre trait caractéristique de l'invention, on fait en sorte que l'organe flexible de renvoi soit constitué en deux éléments reliés l'un à l'autre par une lame rectiligne, qualifiée ci-après de lame de tension, disposée sur le côté opposé par rapport à la lame de coupe.In accordance with another characteristic feature of the invention, the flexible return member is made up of two elements connected to each other by a straight blade, hereinafter called a tension blade, arranged on the opposite side from the cutting blade.

De manière avantageuse la lame de tension est située dans le même plan que la lame de découpage de façon à pouvoir ainsi pénétrer dans la coupe déjà effectuée par ladite lame et à permettre par conséquent le travail de blocs de grande épaisseur.Advantageously, the tension blade is located in the same plane as the cutting blade so as to be able to thus penetrate the cut already made by said blade and therefore allow the work of blocks of great thickness.

Il va de soi que les poulies ou volants oscillants peuvent s'étendre sur moins de 360° du fait que leur mouvement de rotation pendulaire est limité angulairement. La liaison entre les organes flexibles de renvoi et la lame de découpage d'une part, la lame de tension d'autre part, est réalisée à l'aide de dispositifs à mâchoires doubles décrits en détail ci-après. Le mouvement angulaire oscillant des poulies ou volants de commande peut être obtenu de toute manière appropriée, par exemple à l'aide d'un mécanisme de bielle et manivelle ou analogue.It goes without saying that the oscillating pulleys or flywheels can extend over less than 360 ° because their pendular rotary movement is angularly limited. The connection between the flexible return members and the cutting blade on the one hand, the tension blade on the other hand, is produced using double jaw devices described in detail below. The oscillating angular movement of the pulleys or handwheels can be obtained in any suitable manner, for example using a connecting rod and crank mechanism or the like.

Il est déja connu du brevet britannique N° 519 (Thompson) du 15 Août 1861, une scie à mouvement alternatif pour le travail des pierres, avec lame de coupe reliée à des câbles flexibles de renvoi qui s'enroulent de manière partielle sur deux poulies ou volants, donnant origine au mouvement alternatif rectiligne de la lame de coupe à l'opposé de laquelle est disposée une lame de tension reliée à la première par des organes flexibles soutenus par les volants.It is already known from British Patent No. 519 (Thompson) of August 15, 1861, a reciprocating saw for working stones, with cutting blade connected to flexible return cables which are partially wound on two pulleys or flywheels, giving origin to the rectilinear reciprocating movement of the cutting blade opposite which is arranged a tension blade connected to the first by flexible members supported by the flywheels.

Il est d'autre part connu du brevet français 1.437.181 (Perrot) une scie similaire pour le travail des pierres dans laquelle la liaison entre les organes flexibles 3 et la lame de coupe d'un côté et la lame de tension de l'autre est assurée à l'aide d'une mâchoire et d'un axe orienté perpendiculairement, la mâchoire portant des patins mobiles équipés d'organes de coulissement qui se déplacent sur des moyens de guidage prévus sur le bâti.It is also known from French patent 1,437,181 (Perrot) a similar saw for working stones in which the connection between the flexible members 3 and the cutting blade on one side and the tension blade of the another is ensured using a jaw and an axis oriented perpendicularly, the jaw carrying movable shoes fitted with sliding members which move on guide means provided on the frame.

La nouveauté de la présente invention est en ce que le guidage de la lame est obtenu par des galets fixés sur les mâchoires coulissant sur des rails mobiles de long du bâti, lesdits organes coulissant étant constitués par deux mâchoires orientées perpendiculairement l'une par rapport à l'autre et solidaires de patins mobiles coopérant avec lesdites mâchoires, ce qui apporte un parfait positionnement de la lame de coupe pendant le travail des marbres, granits et autres pierres dures.The novelty of the present invention is that the guide of the blade is obtained by rollers fixed on the sliding jaws on movable rails along the frame, said sliding members being constituted by two jaws oriented perpendicularly with respect to the other and integral with movable shoes cooperating with said jaws, which provides perfect positioning of the cutting blade during the work of marble, granite and other hard stones.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Figure 1 est une vue en élévation montrant l'ensemble d'une scie suivant l'invention.
  • Figure 2 en est une vue de côté.
  • Figure 3 est une vue en plan à plus grande échelle montrant l'une des deux parties de la machine suivant fig. 1 et 2.
  • Figure 4 est une coupe suivant IV-IV (fig.5) représentant l'un des dispositifs de guidage à mâchoires doubles.
  • Figure 5 est la coupe horizontale correspondante suivant V-V (fig.4).
  • Figure 6 est une coupe suivant le plan indiqué en VI-VI en fig. 4.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Figure 1 is an elevational view showing the assembly of a saw according to the invention.
  • Figure 2 is a side view.
  • Figure 3 is a plan view on a larger scale showing one of the two parts of the machine according to fig. 1 and 2.
  • Figure 4 is a section on IV-IV (fig.5) showing one of the guiding devices with double jaws.
  • Figure 5 is the corresponding horizontal section along VV (fig.4).
  • Figure 6 is a section along the plane indicated in VI-VI in fig. 4.

La scie à mouvement alternatif suivant l'invention, telle que représentée, comprend une lame de coupe 1 (fig.1) qui dans le cas particulier considéré est disposée verticalement en étant reliée par des dispositifs de guidage à mâchoires doubles 2 et 3 à des organes flexibles de renvoi 4 et 5 constitués par exemple par des lames, câbles ou similaires, supportés par des volants oscillants 6 et 7 ; à leur extrémité opposée les organes 4 et 5 sont réunis par des dispositifs analogues 8 et 9 à une lame de tension 10, également orientée verticalement dans l'exemple envisagé, de manière à se trouver dans le même plan que la lame 1.The reciprocating saw according to the invention, as shown, comprises a cutting blade 1 (fig. 1) which in the particular case considered is arranged vertically, being connected by guiding devices with double jaws 2 and 3 to flexible return members 4 and 5 constituted for example by blades, cables or the like, supported by oscillating flywheels 6 and 7; at their opposite end, the members 4 and 5 are joined by devices similar 8 and 9 to a tension blade 10, also oriented vertically in the example envisaged, so as to be in the same plane as the blade 1.

Moyennant cette disposition, la lame de tension 10 peut pénétrer dans la coupe précédemment réalisée par la lame 1 en permettant de la sorte le sectionnement de blocs de grande hauteur. Il va cependant de soi qu'on resterait dans le cadre de l'invention dans le cas où la lame de tension 10 se présenterait dans le même plan que les extrémités des organes flexibles de renvoi 4 et 5. De la même manière l'orgàne flexible de renvoi peut être unique en faisant ainsi fonction d'élément de tension entre les deux volants, sur le côté opposé à celui de la lame de coupe.With this arrangement, the tension blade 10 can penetrate the cut previously made by the blade 1 thereby allowing the cutting of blocks of great height. It goes without saying, however, that we would remain within the scope of the invention in the case where the tension blade 10 would be in the same plane as the ends of the flexible return members 4 and 5. In the same way the organ return hose can be unique, thus acting as a tension element between the two flywheels, on the side opposite that of the cutting blade.

L'ensemble formé par les deux volants 6 et 7, les organes de renvoi 4 et 5, la lame de coupe 1 et la lame de tension 10 est mobile sur des colonnes portantes 11 et 12 et ce à l'aide de guides verticaux montés sur lesdites colonnes et associés à un mécanisme pour la commande du mouvement d'avance de la lame de coupe, ce mécanisme étant par exemple actionné à l'aide de vis verticales ou autres systèmes équivalents.The assembly formed by the two flywheels 6 and 7, the deflection members 4 and 5, the cutting blade 1 and the tension blade 10 is movable on bearing columns 11 and 12 by means of vertical guides mounted on said columns and associated with a mechanism for controlling the movement of advance of the cutting blade, this mechanism being for example actuated using vertical screws or other equivalent systems.

Le mouvement angulaire alternatif des volants 6 et 7 est assuré, dans la forme de réalisation illustrée, par un mécanisme comprenant une bielle 13 et une manivelle 14, ce mécanisme étant relié par une transmission à courroie à un moteur électrique 15 (fig. 2 et 3). La manivelle 14 est préférablement formée par deux éléments 14 et 14' de façon à ce que la bielle 13, disposée ente lesdits éléments, agisse sur le volant 6 en restant dans l'espace compris dans la partie angulaire vide de celui-ci. Il va de soi qu'on peut prévoir la bielle 13 sous la forme de deux pièces distinctes référencées 13 et 13' en fig.3.The alternating angular movement of the flywheels 6 and 7 is ensured, in the illustrated embodiment, by a mechanism comprising a connecting rod 13 and a crank 14, this mechanism being connected by a belt transmission to an electric motor 15 (fig. 2 and 3). The crank 14 is preferably formed by two elements 14 and 14 'so that the rod 13, disposed ente said elements, acts on the steering wheel 6 while remaining in the space included in the empty angular part thereof. It goes without saying that the connecting rod 13 can be provided in the form of two separate parts referenced 13 and 13 ′ in FIG. 3.

Il est évidemment nécessaire de maintenir sous tension l'ensemble formé par les deux volants ou poulies, la lame de coupe et la lame de tension ; un tel résultat peut être obtenu à l'aide d'un système hydraulique pourvu d'un dispositif hydropneumatique d'un type en soi connu et schématiquement représenté en fig. 1 sous la forme d'un piston 16 mobile à l'intérieur d'un cylindre 17. Ce système hydraulique prend appui contre le bâti fixe 26 qui réunit les colonnes 11 et 12.It is obviously necessary to keep under tension the assembly formed by the two flywheels or pulleys, the cutting blade and the tension blade; such a result can be obtained using a hydraulic system provided with a hydropneumatic device of a type known per se and schematically represented in FIG. 1 in the form of a piston 16 movable inside a cylinder 17. This hydraulic system bears against the fixed frame 26 which joins the columns 11 and 12.

Un autre trait caractéristique concerne les moyens destinés à maintenir le guidage au niveau des dispositifs d'assemblage prévus entre la lame de coupe et l'organe de renvoi ou, dans d'autres cas, entre les dispositifs 8 et 9, les organes de renvoi 4 et 5 et la lame de tension 10. Ces dispositifs peuvent être guidés au moyen de paires de galets disposées dans deux plans orientés perpendiculairement l'un à l'autre, lesquels galets se déplacent sur des guides convenablement prévus dans les armatures mobiles qui soutiennent les volants ou poulies 6 et 7.Another characteristic feature relates to the means intended to maintain the guidance at the level of the assembly devices provided between the cutting blade and the return member or, in other cases, between the devices 8 and 9, the return members. 4 and 5 and the tension blade 10. These devices can be guided by means of pairs of rollers arranged in two planes oriented perpendicular to each other, which rollers move on guides suitably provided in the movable frames which support flywheels or pulleys 6 and 7.

En fig. 4, 5 et 6, on a montré à titre d'exemple non limitatif un type de dispositif de guidage et d'assemblage à mâchoires doubles qui convient particulièrement bien. Ce dispositif comprend une première mâchoire 18 orientée perpendiculairement à une seconde 19 de façon à agripper respectivement la lame de coupe 1 ou la lame de tension 10 d'un côté, l'un des organes 4 et 5 de renvoi de l'autre. Chaque dispositif comprend en outre des patins de guidage 20 et 21 équipés d'organes de coulissement 22 et 23 qui prennent appui sur des plans inclinés 24 et 25 prévus sur les parties correspondantes du bâti de la machine portant les volants ou poulies. Deux galets opposés 27 et 28 montés fous sur ce bâti assurent le guidage de la lame de coupe 10 lors du travail. Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.In fig. 4, 5 and 6, a non-limiting example has been shown of a type of guide and assembly device with double jaws which is particularly suitable. This device comprises a first jaw 18 oriented perpendicular to a second 19 so as to grip respectively the cutting blade 1 or the tension blade 10 on one side, one of the return members 4 and 5 on the other. Each device further comprises guide pads 20 and 21 fitted with sliding members 22 and 23 which bear on inclined planes 24 and 25 provided on the corresponding parts of the frame of the machine carrying the flywheels or pulleys. Two opposite rollers 27 and 28 mounted idly on this frame guide the cutting blade 10 during work. It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (2)

1. Reciprocating marble, granite or other hard- stone saw, with cutting blade (1) coupled to flexible returning members (4 and 5), which are wound partially about two opposed pulleys or flywheels (6, 7) situated at one side and the other of the cutting blade and in the same plane as the latter, the alternating movement of rotation of the two flywheels one of which is actuated by a crank- connecting rod system driven by a motor giving rise to the alternating rectilinear movement of the cutting blade, in opposition to which is disposed a tension blade (10) situated in the same plane and which is coupled thereto by flexible members (4 and 5) carried by the flywheels (6 and 7), characterised in that the coupling between the flexible members and the cutting blade at one end and the tension blade at the other is assured bymeans of assemblies constituted by two jaws (18 and 19) disposed perpendicularly one with respect to the other and fast to movable runners (20 and 21) cooperating with sliding members (22 and 23) which move on guide means (24 and 25) provided on the frame supporting the corresponding flywheel (6 or 7), the sliding members (22 and 23) being constituted by two inclined planes (24 and 25) and the movable runners by conical rollers (22 and 23) bearing on the said two inclined planes (24 and 25).
2. Saw according to claim 1, characterised in that the two opposed rollers (27 and 28) mounted free-running on the frame assure the guiding of the two ends of the saw blade (1).
EP79200245A 1978-06-09 1979-05-18 Reciprocating marble, granite or other hardstone saw Expired EP0006253B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79200245T ATE5697T1 (en) 1978-06-09 1979-05-18 RECIPROCATING SAW FOR CUTTING MARBLE, GRANITE AND OTHER HARD STONES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT85569/78A IT1115448B (en) 1978-06-09 1978-06-09 ALTERNATIVE SAW FOR MARBLE, GRANITE OR HARD STONES, WITH BLADE COMMANDED BY OSCILLATING FLYWHEELS
IT8556978 1978-06-09

Publications (2)

Publication Number Publication Date
EP0006253A1 EP0006253A1 (en) 1980-01-09
EP0006253B1 true EP0006253B1 (en) 1983-12-28

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ID=11328237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79200245A Expired EP0006253B1 (en) 1978-06-09 1979-05-18 Reciprocating marble, granite or other hardstone saw

Country Status (6)

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EP (1) EP0006253B1 (en)
AT (1) ATE5697T1 (en)
DE (1) DE2966505D1 (en)
ES (1) ES481413A1 (en)
GR (1) GR67640B (en)
IT (1) IT1115448B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189900519A (en) * 1899-01-09 1899-02-18 Archibald Laidlaw Baird An Improved Apparatus for Recreation adapted for use in Public Grounds and like Places.
US1695364A (en) * 1927-02-04 1928-12-18 Elroy A Chase Stone-sawing machine
FR1373374A (en) * 1963-10-22 1964-09-25 Mec F Lli Zambon S N C Off Reciprocating saw, especially for sawing marble
FR1437181A (en) * 1965-06-16 1966-04-29 Perrot Et Aubertin Ets Machine for cutting blocks, in particular blocks of marble or the like
DE1992940U (en) * 1968-06-12 1968-08-29 Georg Hottes O H G Granit Und SAWS, ESPECIALLY FOR CUTTING STONES.

Also Published As

Publication number Publication date
IT7885569A0 (en) 1978-06-09
DE2966505D1 (en) 1984-02-02
ES481413A1 (en) 1980-02-01
EP0006253A1 (en) 1980-01-09
IT1115448B (en) 1986-02-03
GR67640B (en) 1981-09-01
ATE5697T1 (en) 1984-01-15

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