EP0537506B1 - Porte-outil pour un dispositif à couper des carreaux - Google Patents

Porte-outil pour un dispositif à couper des carreaux Download PDF

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Publication number
EP0537506B1
EP0537506B1 EP92116115A EP92116115A EP0537506B1 EP 0537506 B1 EP0537506 B1 EP 0537506B1 EP 92116115 A EP92116115 A EP 92116115A EP 92116115 A EP92116115 A EP 92116115A EP 0537506 B1 EP0537506 B1 EP 0537506B1
Authority
EP
European Patent Office
Prior art keywords
tool carrier
tool
tile
scoring
pair
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 - Lifetime
Application number
EP92116115A
Other languages
German (de)
English (en)
Other versions
EP0537506A1 (fr
Inventor
Vincenzo Montoli
Luigi Casartelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brevetti Montolit SpA
Original Assignee
Brevetti Montolit SpA
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Filing date
Publication date
Application filed by Brevetti Montolit SpA filed Critical Brevetti Montolit SpA
Publication of EP0537506A1 publication Critical patent/EP0537506A1/fr
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Publication of EP0537506B1 publication Critical patent/EP0537506B1/fr
Anticipated expiration legal-status Critical
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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
    • B28D1/22—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
    • B28D1/225—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 for scoring or breaking, e.g. tiles

Definitions

  • the present invention relates in general the universe of tile cutting machines, including at least a scoring tool, associated with a cross-piece comprised by one or two parallel guides, wherein for cutting is intended the combination of a first operation of scoring and a second operation of breaking, fracturing or parting, wherein the breaking, fracturing or parting is the results of the interaction of at least one force acting in a first direction on pair of distanced points or jaws, providing the action and/or reaction and a counteracting or antagonist force providing the reaction and/or the action in at least one antagonist point or jaw placed in a plane which is intermediate and parallel with respect to the planes of placing of the at east one pair of antagonist points or jaws.
  • a scoring tool associated with a cross-piece comprised by one or two parallel guides
  • breaking, fracturing or parting is the results of the interaction of at least one force acting in a first direction on pair of distanced points or jaws, providing the action and/or reaction and a counteracting or antagonist force providing the reaction and/or the action
  • the first couple includes: 1) the category characterized by a single pair of points or single point jaws providing the action (significant members of this category are FR-A-2553024 and EP 0299501 of the same applicant) 2) the category characterized by a pair of at least two pointed jaws or at least two pairs of points providing the action and possibly at least two points providing the reaction or vice versa (significant members of this category are the FR-A-1356714 and EP-A-0537506 of the same applicant).
  • the second couple includes: I) the category of machines provided with pushoperable tool carrier (significant members of this category are FR-A-2553024 and EP 0299501, EP-A-0537506, EP 93113611.3-2303 in coarse of examination together the present application, in the name of the same same applicant) II) the category of machines provided with pull-operable tool carrier (significant members of this category are FR-A-1356714 and EP 0299501, in the name of the same applicant).
  • the third couple includes: a) the category of machines wherein the scoring tool carrier structure is provided with means which cooperate to provide the breaking (significant members of this category are FR-A-2553024 and EP 93113611.3-2303 in coarse of examination together the present application, in the name of the same applicant).
  • the category of machines provided with guide wherein the same includes provided with means which cooperate to provide the breaking of the tile (significant members of this category are FR-A-1356714, EP 0299501 and EP-A-0537506 in the name of the same applicant); c) the category of machines provided with guide wherein the same includes in addition to means which cooperate to provide the breaking also with means to fasten the tile during the scoring (significant members of this category are FR-A-1356714, EP 0299501 and EP-A-0537506, in the name of the same applicant)
  • the fourth triad includes: i) the category of machines wherein the guide is stationary (significant members of this category are FR-A-2553024 and EP 93113611.3-2303 in coarse of examination together the present application, in the name of the same applicant). ii) the category of machines wherein the cross-piece is adjustable only to the effect of providing the breaking and/or fastening the tile during scoring (significant members of this category are FR-A-1356714, EP 0299501 and EP-A-0537506 in the name of the same applicant); iii) the category of machines wherein the guide is adjustable to determine the deepness of scoring (significant members of this category CH-A-384787)).)
  • the present invention concerns the tile cutting machines pertaining to the following items of the aforesaid classification:
  • Such tile cutting machines comprise a cross-piece having one or two parallel guides associated with a pushoperable tool carrier including at least a scoring tool.
  • Such cross-piece guides the tool carrier along a longitudinal common plane corresponding with the tool scoring edge, but leaves the tool and/or its carrier free of floating vertically in such common plane with a limited excursion covering a certain range
  • the universe of tile thickness to be cut with such machines ranges between the thickness of the thinnest tile to be worked i.e., 5 mm and the thickness of the thickest tile to be worked i.e. 25 mm. At least this range may be accomplished 1) by excursion only of the tool carrier, 2) by excursion of the cross piece, 3) by excursion of both.
  • Such ample excursion pushoperable tool carrier comprises a second class lever, such second class lever having as weight (R) the scoring tool, as fulcrum (F) a sliding wheel cooperating with the bottom side of said guide and as power the driving end of the arm, wherein between the fulcrum and the power and/or the weight is provided a stop cooperating with the upper side of said guide, such sliding wheel, such scoring tool (3) and such stop (4) comprising the stationary vertexes of a triangle which triangle is kept, as aforesaid, large enough to allow said excursion range, such amplitude of the triangle determining a problem of pointing in a field of amplitude directly proportional to the said amplitude of the field to obtain the engagement between the tool and the scoring starting point, said pushoperable tool carrier being characterized by comprising one or more of the following particularity:
  • either push- or pull-operable tool carriers are known, for scoring the glassy layer and particularly the body of the tiles.
  • the push-operable tool carriers can be used, as they offer the best ergonomic efficiency.
  • Such best efficiency results in active and passive unbalancing in the operator body, since the conventional second class lever system substantially does not include any device providing a tactile pointing, to attain the target, which is comprised by the initial scoring point.
  • This drawback depends from the organolectic difficulty to obtain that the disk-like tool come into contact with the point where the scoring is to be started, generally it is the tile-edge closer to the operator.
  • a conventional tool-carrier operationally comprises a second class lever, having in weight position, a disk-like scoring tool, and a sliding roller in fulcrum position, whereas to limit its drop, there is a pair of small idle rollers, which, nevertheless, have to permit it limitedly for functional reasons.
  • the upward excursion is also limited by a stopping rod.
  • the system is out of control between the two extremes and pointing is substantially provided blindly and substantially does not allow any experience or learning.
  • the invention as claimed is intended to remedy these drawbacks and, moreover, to offer various advantages.
  • the inventors with ingenious perception have conceived a tool-carrier with a self pointing device, with pantographic effect, thus highly organolectic , directed to the tactile pointing of the "target", represented by the initial scoring point, therefore to the entire scoring, hence repeatedly operable.
  • a brake block is automatically set into action, to absorb and dissipate the exceeding energy, in order to soften the tool carrier stopping.
  • the self pointing features of the tool-carrier are such that, when quitted, always goes to a determined constant quote apprehensible by the operator, while the performance of the stroke, between such self-pointing quote and the spot wherein the tool comes into contact with the tile corner to start the best scoring, benefits of a substantially pantographic amplification.
  • This amplification is, at the level of the lever control, at least 6x and such run, at least sixtuplicated, is assisted by organolectic features which are correctly determined and easily apprehensible by the operator, such as to reduce many times the finding time of the right starting point of the scoring, corresponding to the nearest tile-edge towards the operator.
  • the pair of rollers which limited the gravitation dropping of the tool-carrier, is according to the invention made movable and free to slide, with its own axle, along the slot, longitudinally to the body of the tool holder.
  • Such sliding movement is controlled by a spring, having a power sufficient to bear the weight of the whole tool carrier.
  • the residual energy is absorbed by the brake, devised in such way that, the force of the operator causes the coming into contact between two indentations or brake blocks, provided in the upper part of the tool carrier body and the pair of wheels with a mobilized axle, such that the indentations can act on the wheels as brake blocks.
  • a push-operable tool carrier for scoring the covering layer and particularly the thick body of very hard tiles, particularly for application to tile cutting machines, comprises, conventionally, a tool carrier unit 1.
  • a tool carrier unit 1 Operatively it is comprised by a second class lever, which has, in power position the arm 2, in weight position, a disk-like scoring tool 3, and in fulcrum position, a sliding wheel 5, idly mounted on a screwed pivot 50.
  • a pair of idle rollers 6, 6' mounted on the axle 4, which, however, permit a limited dropping for operative reasons.
  • the rod 7 for limiting its upward excursion, there is the rod 7.
  • the tool carrier 1 is provided, at its bottom, said tool 3, for scoring of tile 0.
  • the conventional system is constitutionally unstable. Either during the search (shown by continuous lines) or in improper working position, an unstableness and general blindness is established, with substantial absence of reference contact points.
  • the system is always in a cantilevered situation quite similar to that of the stick of a blind man.
  • the interaction between the tool 3 and the tile 0 may happen to occur only in a mere casual manner, therefore only casually may be as necessary, i.e. coincident with the corner 00 of the tile. In fact, apart from lack of stableness it is impossible to find at least two bearing points before a decision to start the scoring is taken. Thus quite often the starting point 00 of the tile is missed.
  • the pushoperable tool carrier 1 having pantographic effect, for scoring the glassy covering layer and particularly the thick body of very hard tiles, particularly for application to tile cutting machines, comprises a main body 10, which is provided with a vertical self-pointing device 6, 6', 4, having pantographic effect, as well as a head body 90 provided with self-braking means R 1 ⁇ R.
  • the pair of rollers 6, 6' which in the conventional tool carrier had a fixed axle and was provided, only to limit the gravitational sinking, of the tool carrier 1, according to the invention, is mobilized and made idle to slide, with its axle 4, in a direction normal thereto, along a groove 8, longitudinal to the body of the tool carrier 1; such mobility is controlled by a spring 8', whose power is sufficient to bear the weight of the whole tool carrier 1.
  • the spring 8' keeps permanently up the tool carrier 1 (figure 2), in order that the wheel 5, providing the fulcrum of the system, which comprises a second class lever, which remains constantly in touch with bottom side 9, of the sliding guide 9'.
  • a tool carrier excursion limit is provided by a rod 7.
  • dropping of the tool carrier 1 occurs upon the end of scoring, when the disk-like scoring tool 3, drops from tile 0 forced by the user, not shown.
  • the involved energy is absorbed and dissipated by the brake 60, arranged in such a manner that, the force provided by the operator, provides the coming into contact between the brake-blocks R 1 ⁇ R, provided in the upper section 90, of the body of the tool carrier 1 and the pair of wheels 6, 6' of radius R, whose axle 4 is mobilized, in order that the indentations R 1 ⁇ R act, against the wheels 6, 6', as brake-blocks 166, 166'.
  • the tool carrier 1 In position of rest (figure 1), the tool carrier 1, is completely up, i.e. in a position relatively close to the tile 0 to be scored and cut, the involved parts 9, 9' of the cutting machine being shown on phantom lines as they were transparent or broken to better make evident the features of the invention.
  • the disk-like tool 3 is made to engage the upper surface 9", of the tile 0, so that a scoring 09, is provided thereon, starting from the corner 00.
  • the tool carrier 1 drops further (figure 3) towards the spot wherein the upper section 90, of the same tool carrier 1, with its base 60 arched at R 1 ⁇ R, engages the wheels 6, 6', of the vertically slidable upper axle 4.
  • the coming into contact of these two means take place substantially between the two bands or flitches 66, 66', provided by the projections 166, 166', which comprise proper brake-blocks, which may include sections of the upper body 90 or may added and interchangeable brake-blocks, not shown.
  • the whole frame 10 is made of suitable material e.g., of light alloy, to avoid its wear and that of the wheels 6, 6'.
  • the position of figure 2 is to be localized. It is easily and organolectically localizable, provided that two conditions are complied: 1) the lever 2, or better its controlling end or knob, not shown, at start, is always in the same position. 2) also the tile 0 is to be set in the same position, in order that such lever control.is acknowledged by the operator unconscious or instinct so as to become an habit. Another component, certainly the most important, which can be acknowledged by the operator instinct are the three contact points c1, c2, c3, evidenced by the force opposed by the spring 8' in both moments of coming in touch with the tile 0.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (6)

  1. Un porte-outil actionnable à poussée indiqué pour être actionné dans une machine à couper les carreaux pour le réglage et la division d'un carreau (0), étant la dite machine à couper les carreaux en géneral du type comprenant une barre transversale incluyant une ou deux coulisses parallèles (9') fixement espacées de et parallèle à une plaque de base pour supporter un carreau (0), le dit porte-outil actionnable à pousée ayant au moins un guide à la main (2), un dispositif de auto-pointage (4), un outil de division (3) et une petite roue-point d'appui de glissement (5), étant le dit porte-outil approprié à être supporté, et à être movible longitudinalement dans le sens de la longueur de la dite barre transversale, raison pour laquelle la dite petite roue de glissement (5) est adaptée pour coopérer avec un coin inférieur avec la dite barre transversale (9') le dite porte-outil étant en outre arrangé de manière à se déplacer librement verticalement dans les deux sens par égard à la dite barre transversale (9') et par égard à le dit carreau (0) une distance suffisant pour atteindre au moins la distance de l'épaisseur du carreau plus mince jusqu'au carreau plus épais que doit-être travaillé plus le réglage de la course active de la dite barre transversale (9') et la déviation structural général du porteur quand celui-ci est posé sous charge, le dit porte-outil(1) forme un levier de second genre, dans lequel le dit outil de division (3) fait fonction de bras de resistance (R), la dite petit roue de glissement (5) fait fonction de point d'appui (F) et le dit guide à la main (2) fait fonction de bras de puissance (P), le dit dispositif de pointage étant positionné entre le dit point d'appui (F) et le dit bras de puissance (P) et/ou le bras de resistance (R), caractérisé du fait que le dit dispositif de auto-pointage (4) comprend un couple de rouleax ou un couple de roues (6, 6') coopérants avec le bord supérieur de la dite barre transversale (9') et un ressort (8') met en rapport le dit couple de rouleaux ou de roues (6, 6') avec une partie inférieur du dit porte-outil à un niveau au-dessons du dit couple de rouleaux ou de roues forme le sommet d'un triangle ayant le point d'appui (5) et le dit outil de division (3) comme une base, le dit sommet étant movible vers la base (5, 3) et derrière dans un mouvement qui couvre complètement la dite distance de la déviation et a cause duquel le porte-outil (1), lorsqu'il vien relâché, il revien toujours dans une position prédeterminée et constante, établie par l'operateur, le dit point d'appui (5), le dit bras de resistance (3) et le dit bras de puissance (2) du levier de second genre étant arrangée en guise de fournir une amplification pantographique telle que le rapport d'excursion du bras de puissance (P) par rapport au bras de resistence (R) est plus de 6.
  2. Porte-outil comme à la revendication 1, caractérisé par le fait que le porte-outil (1), comprende un corps principal (10), pourvu du dit dispositif de auto-pointage (4), et un corps de tête (90), pourvu de moyens de auto-freinage (60), dont le dit couple de rouleaux (6, 6'), limite la baisse gravitationnel du porte-outil (1) et est adapté pour glisser longitudinalement dans une rainure (8) localisée dans le corps du porte-outil (1) le mouvement du dit couple de rouleax (6, 6') étant contrôlé par le dit ressort (8') la force du quel est suffisant à soutenir le poids de tout le porte-outil (1) quand il faut maintenir soulevé le porte-outil.
  3. Porte-outil, comme revendiqué dans la revendication 2, comprendant une tige (7) appropriée pour engager le bord inférieur de la dite barre transversale (9') pour limiter le mouvement vertical de l'outil.
  4. Porte-outil, comme revendiqué dans la revendication 1, caractérisé du did effect freinant qui se passe au bout du rayage lorsque l'outil (3) ayant une forme d'un disque, tombe du carreau (0).
  5. Porte-outil, comme revendiqué dans la revendication 4, caractérisé du fait que dans la part supériere (90) du corps du porte-outil comprend encoches arquées (60) d'un rayon R1 arrangées en sorte qu'elles s'embrayent avec le dit couple de rouleaux (6, 6') de rayon R au but de l'incision ou partie à couper et où R1 est moins de R donc fournit les dits moyens de auto-freinage.
  6. Porte-outil, comme revendiqué dans la revendication 1, caractérisé du fait que le porte-outil (1), a une flèche indicatrice sur le paroi frontale principal du corp supérieur qui aide l'opérateur à porter le porte-outil (1) ou ses moyens de contrôle (2).
EP92116115A 1991-09-19 1992-09-21 Porte-outil pour un dispositif à couper des carreaux Expired - Lifetime EP0537506B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVA910031 1991-09-19
ITVA910031A IT1253422B (it) 1991-09-20 1991-09-20 Portautensili azionabile a spinta, particolarmente per l'incisione di piastrelle spesse e durissime, particolarmente da applicare alle macchine per il loro taglio, provvisto di dispositivo di autopuntamento.

Publications (2)

Publication Number Publication Date
EP0537506A1 EP0537506A1 (fr) 1993-04-21
EP0537506B1 true EP0537506B1 (fr) 2002-06-26

Family

ID=11423151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116115A Expired - Lifetime EP0537506B1 (fr) 1991-09-19 1992-09-21 Porte-outil pour un dispositif à couper des carreaux

Country Status (5)

Country Link
EP (1) EP0537506B1 (fr)
AT (1) ATE219715T1 (fr)
DE (1) DE69232654T2 (fr)
ES (1) ES2176182T3 (fr)
IT (1) IT1253422B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101773A1 (de) 2011-05-09 2012-11-15 Wolfcraft Gmbh Fliesenschneider

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269994B1 (en) * 1999-05-12 2001-08-07 North American Tile Tool Company Manual tile cutter
CN103158053A (zh) * 2013-04-03 2013-06-19 沈凯钱 瓷砖切分装置
CN112405894A (zh) * 2019-08-21 2021-02-26 诚瑞光学(常州)股份有限公司 加工刀具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1932659A (en) * 1930-07-16 1933-10-31 Samuel I Granite Tile cutting and breaking machine
FR1175303A (fr) * 1957-05-17 1959-03-24 Machine plus spécialement destinée au découpage de carrelages en céramique, faïence ou matières similaires
CH384787A (de) * 1961-05-30 1965-02-26 Courvoisier Jean Pierre Vorrichtung zum Anritzen und/oder Trennen von flachem Schnittgut
AT353666B (de) * 1978-02-09 1979-11-26 Manschein Alois Vorrichtung zum schneiden von keramischen platten od.dgl.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012101773A1 (de) 2011-05-09 2012-11-15 Wolfcraft Gmbh Fliesenschneider
WO2012152784A2 (fr) 2011-05-09 2012-11-15 Wolfcraft Gmbh Machine à couper les carreaux
EP2711150A1 (fr) 2011-05-09 2014-03-26 wolfcraft GmbH Machine à couper les carreaux

Also Published As

Publication number Publication date
ES2176182T3 (es) 2002-12-01
DE69232654D1 (de) 2002-08-01
ITVA910031A1 (it) 1993-03-20
DE69232654T2 (de) 2003-02-20
ATE219715T1 (de) 2002-07-15
ITVA910031A0 (it) 1991-09-20
IT1253422B (it) 1995-08-08
EP0537506A1 (fr) 1993-04-21

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