EP0102303A2 - Method of affixing pick holders to a cutting wheel or a milling drum - Google Patents

Method of affixing pick holders to a cutting wheel or a milling drum Download PDF

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Publication number
EP0102303A2
EP0102303A2 EP83420122A EP83420122A EP0102303A2 EP 0102303 A2 EP0102303 A2 EP 0102303A2 EP 83420122 A EP83420122 A EP 83420122A EP 83420122 A EP83420122 A EP 83420122A EP 0102303 A2 EP0102303 A2 EP 0102303A2
Authority
EP
European Patent Office
Prior art keywords
support
axis
sector
wheel
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83420122A
Other languages
German (de)
French (fr)
Other versions
EP0102303B1 (en
EP0102303A3 (en
Inventor
Joseph Allard
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.)
Eurotungstene SA
Original Assignee
Eurotungstene SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eurotungstene SA filed Critical Eurotungstene SA
Priority to AT83420122T priority Critical patent/ATE32471T1/en
Publication of EP0102303A2 publication Critical patent/EP0102303A2/en
Publication of EP0102303A3 publication Critical patent/EP0102303A3/en
Application granted granted Critical
Publication of EP0102303B1 publication Critical patent/EP0102303B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7075—Interfitted members including discrete retainer
    • Y10T403/7077—Interfitted members including discrete retainer for telescoping members
    • Y10T403/7079—Transverse pin
    • Y10T403/7086—Wedge pin

Definitions

  • the present invention relates to a system for mounting the peak holder sectors on a slicer wheel or a strawberry (or cutter) drum, allowing rapid mounting of the sectors, as well as changing the working direction of rotation of the wheel or drum around its axis.
  • the device according to the invention overcomes the drawbacks mentioned above.
  • It comprises supports fixed (generally at regular intervals) on the periphery of the wheel (or drum) and which have a generally elongated shape in the circumferential direction limited by a base, two lateral surfaces and an external surface.
  • the base is rigidly fixed to the outer surface of the wheel (or of the drum) by welding, mechanically or any other suitable means.
  • This shape has symmetry with respect to an axis, which is generally perpendicular and concurs with the axis of the wheel (or of the drum); the lateral faces form, at their outer end, with the perpendicular to the axis of symmetry, an angle (a) less than 90 °; preferably, the end of the lateral faces converge more quickly than the spokes which pass through the external ends of the support.
  • These supports can be drilled with at least two holes or openings, symmetrical with respect to the radial axis of the support for the removable fixing of the peak holder sector, by any known means (elastic pin or jumper, etc.). These two openings can be reduced to one if it is located on the axis of symmetry of the support.
  • the peak holder sector itself-comprises a base, the section of which by a plane passing through the axis of symmetry has the shape of a yoke open in the direction of the base of the support which engages and presses on the support, at its outer part and on one of its lateral faces; it is closed at one of the lateral ends for example, by a welded block and open at the opposite end.
  • the peak holder sector is provided with holes or openings intended for its attachment to the wheel (or the drum), in particular, at least one complementary opening of one of the openings made in the support.
  • the lateral faces can have any profile both in a diametral plane (perpendicular to the wheel axis) and in a tangential plane (perpendicular to a radius of the wheel on its outer surface), provided that the condition ⁇ ⁇ 90 ° be respected.
  • the arrow indicates the direction of rotation of the wheel during work.
  • the wheel (1) comprises a support (2) bounded by a flat face (3) and two lateral faces (4) in a radial plane, which is joined to the wheel (1) by a weld (5).
  • the support is provided with two circular holes (6) symmetrical with respect to the axis of symmetry (7) of the support (2).
  • the peak holder sector (8) comprises a base having the shape of a yoke closed on one side by a welded block (9); it presses on one of the sides (4) of the support (2) as well as on the flat face (3).
  • the block (9) is fixed to the sector (8) by the weld bead (13).
  • the base is pierced with two circular holes (10), one of which corresponds to the hole (6) of the support (2) which allows the removable connection of the sector (8) to the support (2) using a jumper elastic (11).
  • the pick holder (12) is fixed to the sector (8) by the weld bead (14).
  • the sector (8) can be mounted in one direction or the other on the support (2) by removing the jumper (11), by turning the sector (8) 180 ° around the axis of symmetry (7) and again putting the jumper in place (II).
  • the front part of the sector (8) comprising the block (9) constitutes effective protection against abrasion of the support (2) which retains its geometry during work; it should also be noted that the force due to the work is supported directly by the support (2), the rider (11) having only a role of positioning and connection of the sector (8) to the wheel (1) ; the latter withstands practically no shearing force.
  • the surface (3) can be different from a plane and can have any other configuration symmetrical with respect to the axis (7) in particular that of a cylinder sector, the axis of which coincides with that of the wheel (1 ), as shown schematically in (3 ') in Figure 1.
  • the side faces may have any profile symmetrical to the axis (7) as shown in Figures la, lb, the angle a being ⁇ 90 °.
  • the profile of the bearing faces (4) is either rounded (19, FIG. 2a), or chamfered (20, FIG. 2b), either bevel (21, Figure 2c), and symmetrical with respect to the axis (7).
  • the sector can be fixed to the support by a split pin (15), which engages in a hole (16) tangent to the rear support face ( 4) of the support.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Milling Processes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Harvester Elements (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

This invention relates to a system for mounting tooth-carrier sectors on a cutter wheel or a milling-cutter drum (or coal-cutter drum) permitting the rapid mounting of the sectors, as well as a change in the direction of operation of the wheel or drum about its axis. The supports (2) attached to the wheel (1) by their base are delimited by two lateral surfaces (4) and by one upper surface (3), which rest on the yoke-shaped base of the tooth-carrier sectors (8). The support (2) has a shape which is symmetrical with respect to its axis (7), and its lateral surfaces (4) form with the perpendicular to the axis (7) an angle ( alpha ) which is less than 90 DEG at their outer end. The sector (8) is closed on the side which rests against the front surface (4) during operation. The sector (8) is attached to its support, for example by means of an elastic dog (11).

Description

La présente invention se rapporte à un système de montage des secteurs porte-pics sur une roue de trancheuse ou un tambour de fraise (ou de haveuse), permettant un montage rapide des secteurs, ainsi que le changement du sens de rotation de travail de la roue ou du tambour autour de son axe.The present invention relates to a system for mounting the peak holder sectors on a slicer wheel or a strawberry (or cutter) drum, allowing rapid mounting of the sectors, as well as changing the working direction of rotation of the wheel or drum around its axis.

Les secteurs porte-pics sont généralement fixés à leur support soit de façon permanente par soudure, soit de façon amovible à l'aide de goupilles, boulons, etc... Cependant, ces systèmes présentent les inconvénients suivants :

  • - les supports sont soumis à une usure intensive en cours de travail,
  • - il n'est possible de travailler que dans un seul sens de rotation.
The peak holder sectors are generally fixed to their support either permanently by welding, or removably using pins, bolts, etc. However, these systems have the following drawbacks:
  • - the supports are subjected to intensive wear during work,
  • - it is only possible to work in one direction of rotation.

Le dispositif suivant l'invention permet de pallier aux inconvénients évoqués ci-dessus.The device according to the invention overcomes the drawbacks mentioned above.

Il comporte des supports fixés (en général à intervalles réguliers) sur la périphérie de la roue (ou du tambour) et qui présentent une forme généralement allongée dans le sens circonférentiel limitée par une base, deux surfaces latérales et une surface extérieure. La base est fixée rigidement à la surface extérieure de la roue (ou du tambour) par soudure, mécaniquement ou tout autre moyen approprié. Cette forme présente une symétrie par rapport à un axe, lequel est en général perpendiculaire et concourant avec l'axe de la roue (ou du tambour) ; les faces latérales forment, à leur extrémité externe, avec la perpendiculaire à l'axe de symétrie, un angle (a) inférieur à 90° ; de préférence, l'extrémité des faces latérales convergent plus rapidement que les rayons qui passent par les extrémités extérieures du support. Ces supports peuvent être percés d'au moins deux trous ou ouvertures, symétriques par rapport à l'axe radial du support en vue de la fixation amovible du secteur porte-pics, par tout moyen connu (goupille ou cavalier élastiques, etc...).Ces deux ouvertures peuvent se réduire à une seule si elle est située sur l'axe de symétrie du support.It comprises supports fixed (generally at regular intervals) on the periphery of the wheel (or drum) and which have a generally elongated shape in the circumferential direction limited by a base, two lateral surfaces and an external surface. The base is rigidly fixed to the outer surface of the wheel (or of the drum) by welding, mechanically or any other suitable means. This shape has symmetry with respect to an axis, which is generally perpendicular and concurs with the axis of the wheel (or of the drum); the lateral faces form, at their outer end, with the perpendicular to the axis of symmetry, an angle (a) less than 90 °; preferably, the end of the lateral faces converge more quickly than the spokes which pass through the external ends of the support. These supports can be drilled with at least two holes or openings, symmetrical with respect to the radial axis of the support for the removable fixing of the peak holder sector, by any known means (elastic pin or jumper, etc.). These two openings can be reduced to one if it is located on the axis of symmetry of the support.

Le secteur porte-pics lui-même-comporte une embase dont la section par un plan passant par l'axe de symétrie présente la forme d'une chape ouverte en direction de la base du support qui s'engage et appuie sur le support, à sa partie extérieure et sur l'une de ses faces latérales ; il est fermé à l'une des extrémités latérales par exemple, par un bloc soudé et ouvert à l'extrémité opposée.The peak holder sector itself-comprises a base, the section of which by a plane passing through the axis of symmetry has the shape of a yoke open in the direction of the base of the support which engages and presses on the support, at its outer part and on one of its lateral faces; it is closed at one of the lateral ends for example, by a welded block and open at the opposite end.

Au secteur porte-pics sont évidemment fixés des porte-pics; selon une technique connue. Le secteur porte-pics est muni de trous ou ouvertures destinés à sa fixation sur la roue (ou le tambour), en particulier, d'au moins une ouverture complémentaire de l'une des ouvertures réalisées dans le support.To the peak holder sector are obviously fixed peak holders; according to a known technique. The peak holder sector is provided with holes or openings intended for its attachment to the wheel (or the drum), in particular, at least one complementary opening of one of the openings made in the support.

Les faces latérales peuvent présenter un profil quelconque tant dans un plan diamétral (perpendiculaire à l'axe de la roue) que dans un plan tangentiel (perpendiculâire à un rayon de la roue à sa surface extérieure), pourvu que la condition α< 90° soit respectée.The lateral faces can have any profile both in a diametral plane (perpendicular to the wheel axis) and in a tangential plane (perpendicular to a radius of the wheel on its outer surface), provided that the condition α <90 ° be respected.

L'invention sera mieux comprise par la description d'exemples de réalisation représentés sur les figures suivantes :

  • La figure représente une vue du dispositif suivant un plan diamétral.
  • Les figures la et Ib représentent des variantes de la face latéralé d'appui.
  • Les figures 2, 2a, 2b et 2c représentent diverses variantes de la surface latérale d'appui du support suivant la coupe AA de la figure 1.
  • La figure 3 représente une coupe de la figure 1 suivant BB.
  • La figure 4 représente une vue selon un plan diamétral d'une autre variante du dispositif.
The invention will be better understood from the description of exemplary embodiments shown in the following figures:
  • The figure shows a view of the device along a diametrical plane.
  • Figures la and Ib show variants of the lateral support face.
  • FIGS. 2, 2a, 2b and 2c represent various variants of the lateral support surface of the support along the section AA of FIG. 1.
  • Figure 3 shows a section of Figure 1 along BB.
  • Figure 4 shows a view along a diametrical plane of another variant of the device.

Sur les figures, la flèche indique le sens de rotation de la roue, lors du travail.In the figures, the arrow indicates the direction of rotation of the wheel during work.

La roue (1) comporte un support (2) limité par une face plane (3) et deux faces latérales (4) dans un plan radial, lequel est réuni à la roue (1) par une soudure (5). Le support est muni de deux trous circulaires (6) symétriques par rapport à l'axe de symétrie (7) du support (2). Le secteur porte-pics (8) comprend une embase ayant la forme d'une chape fermée sur un côté par un bloc (9) soudé ; il appuie sur l'un des côtés (4) du support (2) ainsi que sur la face plane (3). Le bloc (9) est fixé au secteur (8) par le cordon de soudure (13). L'embase est percée de deux trous circulaires (10) dont l'un correspond au trou (6) du support (2) qui permet la liaison amovible du secteur (8) au support (2) à l'aide d'un cavalier élastique (11). Le porte-pics (12) est fixé au secteur (8) par le cordon de soudure (14).The wheel (1) comprises a support (2) bounded by a flat face (3) and two lateral faces (4) in a radial plane, which is joined to the wheel (1) by a weld (5). The support is provided with two circular holes (6) symmetrical with respect to the axis of symmetry (7) of the support (2). The peak holder sector (8) comprises a base having the shape of a yoke closed on one side by a welded block (9); it presses on one of the sides (4) of the support (2) as well as on the flat face (3). The block (9) is fixed to the sector (8) by the weld bead (13). The base is pierced with two circular holes (10), one of which corresponds to the hole (6) of the support (2) which allows the removable connection of the sector (8) to the support (2) using a jumper elastic (11). The pick holder (12) is fixed to the sector (8) by the weld bead (14).

On voit aisément que le secteur (8) peut être monté dans un sens ou dans l'autre sur le support (2) en retirant le cavalier (11), en retournant le secteur (8) de 180° autour de l'axe de symétrie (7) et en mettant à nouveau en place le cavalier (II).It is easy to see that the sector (8) can be mounted in one direction or the other on the support (2) by removing the jumper (11), by turning the sector (8) 180 ° around the axis of symmetry (7) and again putting the jumper in place (II).

Par ailleurs, la partie avant du secteur (8) comprenant le bloc (9) constitue une protection efficace contre l'abrasion du support (2) lequel conserve sa géométrie en cours de travail ; il est aussi à remarquer que l'effort dû au travail est supporté directement par le support (2), le cavalier (11) n'ayant qu'un rôle de positionnement et de liaison du secteur (8) à la roue (1) ; ce dernier ne supporte pratiquement aucun effort de cisaillement.Furthermore, the front part of the sector (8) comprising the block (9) constitutes effective protection against abrasion of the support (2) which retains its geometry during work; it should also be noted that the force due to the work is supported directly by the support (2), the rider (11) having only a role of positioning and connection of the sector (8) to the wheel (1) ; the latter withstands practically no shearing force.

La surface (3) peut être différente d'un plan et peut avoir tout autre configuration symétrique par rapport à l'axe (7) en particulier celle d'un secteur de cylindre, dont l'axe coincide avec celui de la roue (1), comme schématisé en (3') sur la figure 1.The surface (3) can be different from a plane and can have any other configuration symmetrical with respect to the axis (7) in particular that of a cylinder sector, the axis of which coincides with that of the wheel (1 ), as shown schematically in (3 ') in Figure 1.

Les faces latérales peuvent présenter un profil quelconque symétrique à l'axe (7) comme représenté aux figures la, lb, l'angle a étant ≤ 90°.The side faces may have any profile symmetrical to the axis (7) as shown in Figures la, lb, the angle a being ≤ 90 °.

De même, dans le sens tangentiel, le profil des faces d'appui (4) est soit arrondi (19, figure 2â), soit chanfreiné (20, figure 2b), soit en biseau (21, figure 2c), et symétrique par rapport à l'axe (7).Similarly, in the tangential direction, the profile of the bearing faces (4) is either rounded (19, FIG. 2a), or chamfered (20, FIG. 2b), either bevel (21, Figure 2c), and symmetrical with respect to the axis (7).

Bien sûr, comme dans le cas représenté à la figure 4, la fixation du secteur sur le support peut être assurée par une goupille fendue (15), qui s'engage dans un trou (16) tangent à la face d'appui arrière (4) du support.Of course, as in the case shown in FIG. 4, the sector can be fixed to the support by a split pin (15), which engages in a hole (16) tangent to the rear support face ( 4) of the support.

Claims (6)

1. Système de montage de secteurs porte-pics (8) sur une roue (1) de trancheuse ou tambour de fraise, comportant des supparts(2) fixés à la roue (ou au tambour) par leur base et limités par deux surfaces latérales (4), et une face supérieure (3), qui s'appuient sur l'embase en forme de chape des secteurs porte-pics (8), caractérisé en ce que le support (2) présente une forme symétrique par rapport à un axe (7) et dont les faces latérales (4) forment, à leur extrémité externe, un angle (a) inférieur ou égal à 90° avec la perpendiculaire à l'axe (7), et en ce que le secteur (8) est fermé sur le côté qui s'appuie sur la face avant (4) lors du travail.1. System for mounting peak holder sectors (8) on a wheel (1) of slicer or strawberry drum, comprising supports (2) fixed to the wheel (or to the drum) by their base and limited by two lateral surfaces (4), and an upper face (3), which rest on the fork-shaped base of the peak holder sectors (8), characterized in that the support (2) has a symmetrical shape with respect to a axis (7) and whose lateral faces (4) form, at their outer end, an angle (a) less than or equal to 90 ° with the perpendicular to the axis (7), and in that the sector (8) is closed on the side which rests on the front face (4) during work. 2. Système selon la revendication 1, caractérisé en ce que le support est percé d'au moins deux ouvertures symétriques (6) par rapport à l'axe (7) et en ce que le secteur est percé d'au moins une ouverture (10) correspondant à l'une des ouvertures (6).2. System according to claim 1, characterized in that the support is pierced with at least two symmetrical openings (6) relative to the axis (7) and in that the sector is pierced with at least one opening ( 10) corresponding to one of the openings (6). 3. Système selon la revendication 1 ou 2, caractérisé en ce que le support et le secteur sont percés d'au moins une ouverture (6) située sur l'axe (7).3. System according to claim 1 or 2, characterized in that the support and the sector are pierced with at least one opening (6) located on the axis (7). 4. Système selon l'une des revendications 1 à 3, caractérisé en ce que les faces latérales (4) convergent plus rapidement que les rayons de la roue (1) qui passent par leur extrémité extérieure.4. System according to one of claims 1 to 3, characterized in that the side faces (4) converge faster than the spokes of the wheel (1) which pass through their outer end. 5. Système selon l'une des revendications 1 à 3, caractérisé en ce que la surface d'appui (3) du secteur (8) sur le support (2) est une surface plane.5. System according to one of claims 1 to 3, characterized in that the bearing surface (3) of the sector (8) on the support (2) is a flat surface. 6. Système selon l'une des revendications 1 à 3, caractérisé en ce que la surface d'appui (3) du secteur (8) sur le support (2) est une surface cylindrique de même axe que la roue (1).6. System according to one of claims 1 to 3, characterized in that the bearing surface (3) of the sector (8) on the support (2) is a cylindrical surface of the same axis as the wheel (1).
EP83420122A 1982-07-21 1983-07-19 Method of affixing pick holders to a cutting wheel or a milling drum Expired EP0102303B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83420122T ATE32471T1 (en) 1982-07-21 1983-07-19 PROCEDURE FOR MOUNTING PICK HOLDERS ONTO A SLOT WHEEL OR CUTTING DRUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8213036A FR2530724A1 (en) 1982-07-21 1982-07-21 MOUNTING DEVICE FOR PICK-UP SECTIONS ON A SLICER WHEEL OR STRAWBERRY DRUM
FR8213036 1982-07-21

Publications (3)

Publication Number Publication Date
EP0102303A2 true EP0102303A2 (en) 1984-03-07
EP0102303A3 EP0102303A3 (en) 1986-09-10
EP0102303B1 EP0102303B1 (en) 1988-02-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420122A Expired EP0102303B1 (en) 1982-07-21 1983-07-19 Method of affixing pick holders to a cutting wheel or a milling drum

Country Status (10)

Country Link
US (1) US4512612A (en)
EP (1) EP0102303B1 (en)
AT (1) ATE32471T1 (en)
CA (1) CA1240496A (en)
DE (1) DE3375667D1 (en)
DK (1) DK333783A (en)
ES (2) ES282106Y (en)
FR (1) FR2530724A1 (en)
GR (1) GR79191B (en)
PT (1) PT77064B (en)

Cited By (3)

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GB2159196A (en) * 1984-05-21 1985-11-27 Santrade Ltd Support for a cutting tool for cutting hard material
FR2589945A1 (en) * 1985-11-07 1987-05-15 Santrade Ltd Support for a cutting tool for working on a hard material
DE3543016A1 (en) * 1985-12-05 1987-06-11 Bergwerksverband Gmbh Interchangeable winning tool

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US4755004A (en) * 1986-11-14 1988-07-05 Palmquist Roger A Rotary rocksaw device
US4790207A (en) * 1986-11-14 1988-12-13 Huffy Corporation Bicycle control lever mounting system
US6213560B1 (en) 1999-03-19 2001-04-10 Caterpillar Paving Products Inc. Variable width milling drum
WO2017037739A1 (en) * 2015-09-02 2017-03-09 Chaudhari Saurabh Pulse wheel/ pulse flywheel

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Publication number Priority date Publication date Assignee Title
US2039416A (en) * 1933-05-29 1936-05-05 Sullivan Machinery Co Cutter chain
FR1303889A (en) * 1961-10-17 1962-09-14 Eickhoff Geb Cutter support, in particular for cutting cylinders
US4068897A (en) * 1976-10-22 1978-01-17 M.A.T. Industries, Inc. Replaceable cutting bit holder assembly
DE2855577A1 (en) * 1978-12-22 1980-07-03 Elfgen Apex Mine cutting machine chisel holder - has head side notch base at acute angle to longitudinal axis
DE2855576A1 (en) * 1978-12-22 1980-07-03 Elfgen Apex Mine cutting machine chisel holder - has fitting base parts seated on cutter and on headpiece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159196A (en) * 1984-05-21 1985-11-27 Santrade Ltd Support for a cutting tool for cutting hard material
FR2589945A1 (en) * 1985-11-07 1987-05-15 Santrade Ltd Support for a cutting tool for working on a hard material
DE3543016A1 (en) * 1985-12-05 1987-06-11 Bergwerksverband Gmbh Interchangeable winning tool

Also Published As

Publication number Publication date
ES285599U (en) 1985-10-01
ES282106U (en) 1985-12-16
EP0102303B1 (en) 1988-02-10
PT77064B (en) 1986-01-28
US4512612A (en) 1985-04-23
ES285599Y (en) 1986-05-01
DK333783A (en) 1984-01-22
FR2530724A1 (en) 1984-01-27
EP0102303A3 (en) 1986-09-10
ATE32471T1 (en) 1988-02-15
FR2530724B1 (en) 1985-01-25
GR79191B (en) 1984-10-22
DK333783D0 (en) 1983-07-20
PT77064A (en) 1983-08-01
ES282106Y (en) 1986-07-16
CA1240496A (en) 1988-08-16
DE3375667D1 (en) 1988-03-17

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