EP0118800B1 - Screen bottom with replaceable screen elements - Google Patents

Screen bottom with replaceable screen elements Download PDF

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Publication number
EP0118800B1
EP0118800B1 EP84101661A EP84101661A EP0118800B1 EP 0118800 B1 EP0118800 B1 EP 0118800B1 EP 84101661 A EP84101661 A EP 84101661A EP 84101661 A EP84101661 A EP 84101661A EP 0118800 B1 EP0118800 B1 EP 0118800B1
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EP
European Patent Office
Prior art keywords
screen
bottom according
screen bottom
profiled member
elements
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
EP84101661A
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German (de)
French (fr)
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EP0118800A3 (en
EP0118800A2 (en
Inventor
Wolfgang Lehmann
Gerhard Schmidt
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.)
Cambio Ragione Sociale isenmann Siebe GmbH
Original Assignee
Isenmann Drahterzeugnisse GmbH
Isenmann Siebe GmbH
Hein Lehmann AG
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Publication date
Application filed by Isenmann Drahterzeugnisse GmbH, Isenmann Siebe GmbH, Hein Lehmann AG filed Critical Isenmann Drahterzeugnisse GmbH
Priority to AT84101661T priority Critical patent/ATE34929T1/en
Publication of EP0118800A2 publication Critical patent/EP0118800A2/en
Publication of EP0118800A3 publication Critical patent/EP0118800A3/en
Application granted granted Critical
Publication of EP0118800B1 publication Critical patent/EP0118800B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645—Screening surfaces built up of modular elements

Definitions

  • the invention relates to a screen covering with exchangeable screen elements fastened next to one another, which are fastened to a load-bearing substructure, a lower profile being fastened to the load-bearing substructure in the region in which two adjacent screen elements adjoin one another, which profile defines the edges of at least two adjoining screen elements engages under, a second, upper profile is detachably fastened above this profile, and a sieve element is held clampingly between the lower and upper profile on both sides.
  • Interchangeable sieve elements made of plastic, in particular polyurethane are known for sieve trays, which have grooves on the underside near the long sides in order to push the sieve elements with their grooves over metal rails, the upper region of each metal rail engaging in the groove.
  • metal sieve meshes or grids permanently or temporarily instead of plastic sieve elements
  • the object of the invention is to improve a screen covering of the type mentioned in such a way that screen elements of different thicknesses can be fastened and changed without any adjustment work and thereby find a secure hold.
  • the two legs of an upwardly open U-profile 1 form a first and second metal rail 1a, 1b, the upper leg ends of which are bent inwards and have a gap 1c between them.
  • a first, lower profile 2 made of plastic, in particular polyurethane, is fastened on the profile 1 and has on its underside two longitudinal grooves 3, 4, in which the upper ends of the rails 1 a, 1 b lie in a snap-in manner.
  • FIGS. 2 and 3 differs from that of FIG. 1 in that instead of a metal sieve element, a plastic sieve element 14a is used, which is less at the edges that are clamped between the profiles 2, 8 Has thickness or strength.
  • These edge strips 16, which are integrally formed on at least two opposite sides, in particular the long sides, can be lower with their upper side than the screen-effective surface of the element, so that a vertical side edge 8a of the upper profile 8 lies sealingly against a lateral end face of the element 14a .
  • the embodiment according to FIG. 4 differs from the previous one in that the lower profile 2 is held solely by pins 18 in openings in the substructure, in particular in bores of a profile, not shown.

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Abstract

The invention relates to a screen surfacing with exchangeable screen elements fastened juxtaposed, which are fastened on a load-bearing substructure. A plastic profile (2) which engages under the edges of at least two mutually adjacent screen elements (14, 15) is fastened on the load-bearing substructure (1) in the region in which two adjacent screen elements (14, 15) adjoin mutually. A second, upper profile (8) is fastened detachably over this plastic profile (2), and a screen element (14, 15) is retained and clamped between the first and second profile on each of two sides.

Description

Die Erfindung betrifft einen Siebbelag mit nebeneinander befestigten, auswechselbaren Siebelementen, die an einer tragenden Unterkonstruktion befestigt sind, wobei auf der tragenden Unterkonstruktion in dem Bereich, in dem zwei benachbarte Siebelemente aneinandergrenzen, ein unteres Profil befestigt ist, das die Ränder von mindestens zwei aneinandergrenzenden Siebelementen untergreift, über diesem Profil ein zweites, oberes Profil lösbar befestigt ist, und zwischen unterem und oberem Profil zu beiden Seiten je ein Siebelement klemmend gehalten ist.The invention relates to a screen covering with exchangeable screen elements fastened next to one another, which are fastened to a load-bearing substructure, a lower profile being fastened to the load-bearing substructure in the region in which two adjacent screen elements adjoin one another, which profile defines the edges of at least two adjoining screen elements engages under, a second, upper profile is detachably fastened above this profile, and a sieve element is held clampingly between the lower and upper profile on both sides.

Es sind für Siebböden auswechselbare Siebelemente aus Kunststoff, insbesondere Polyurethan bekannt, die an der Unterseite nahe den Längsseiten Nuten aufweisen, um die Siebelemente mit ihren Nuten über Metallschienen zu schieben, wobei der obere Bereich jeder Metallschiene in der Nut einrastet. Sollte ein Teil des Siebbodens anstelle von Kunststoffsiebelementen mit metallenen Siebgeweben oder -gittern ständig oder vorübergehend ausgerüstet sein, so ist es bekannt, Kunststoffleisten auf die Metallschienen aufzuschrauben, so daß die Metallsiebe auf die Metallschienen aufgepreßt werden. Hierzu müssen im Metallsieb und in der Metallschiene Löcher für die Schrauben gebohrt werden. Alternativ ist es bekannt, zur Befestigung von Preßschweißgittern Kunststoffleisten an die Metallschienen einrastend zu befestigen und diese Kunststoffleisten mit waagerechten Bohrungen zu versehen, um in diesen die Enden der Preßschweißgitter einzuschieben. Beide Befestigungsarten sind zeit- und arbeitsaufwendig in der Montage und erfordern für jedes Metallsieb eine besondere Anpassung. Ein Wechsel der Metallsiebarten erfordert einen erheblichen Aufwand.Interchangeable sieve elements made of plastic, in particular polyurethane, are known for sieve trays, which have grooves on the underside near the long sides in order to push the sieve elements with their grooves over metal rails, the upper region of each metal rail engaging in the groove. Should a part of the sieve bottom be equipped with metal sieve meshes or grids permanently or temporarily instead of plastic sieve elements, it is known to screw plastic strips onto the metal rails so that the metal sieves are pressed onto the metal rails. For this purpose, holes for the screws must be drilled in the metal sieve and in the metal rail. Alternatively, it is known to fasten plastic strips to the metal rails for fastening pressure welding grids and to provide these plastic strips with horizontal bores in order to insert the ends of the pressure welding grids therein. Both types of fastening are time-consuming and labor-intensive to assemble and require a special adjustment for each metal sieve. Changing the metal sieve types requires considerable effort.

Aus der SU-A 865 423 ist es bekannt, Siebelemente zwischen zwei Leisten zu halten, die aneinander geschraubt sind. Dies führt nicht nur zu einem hohen Montageaufwand, sondern auch dazu, daß die oben vorstehenden Schrauben und Muttern verschleißen als auch festbacken können und damit ein späteres Lösen für ein Auswechseln schwierig wird.From SU-A 865 423 it is known to hold sieve elements between two strips which are screwed together. This leads not only to a high assembly effort, but also to the fact that the above bolts and nuts can wear out as well as get stuck, making subsequent loosening difficult for replacement.

Aufgabe der Erfindung ist es, einen Siebbelag der eingangs genannten Art so zu verbessern, daß ohne Anpassungsarbeiten Siebelemente unterschiedlicher Dicke befestigt und gewechselt werden können und hierbei einen sicheren Halt finden.The object of the invention is to improve a screen covering of the type mentioned in such a way that screen elements of different thicknesses can be fastened and changed without any adjustment work and thereby find a secure hold.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Siebelemente einstückig und plattenförmig sind, daß beide Profile aus Kunststoff sind, daß an einem der beiden Profile eine abstehende Leiste angeformt ist, die in einer nutenförmigen Ausnehmung des anderen Profils lösbar einliegt, und daß das obere Profil durch eine Rastverbindung am unteren Profil gehalten ist, wobei mindestens eine Seitenfläche jeder Leiste Zähne aufweist, die in entsprechende zahnförmige Rücksprünge in mindestens einer Wandung der nutenförmigen Ausnehmung des anderen Profils einrastet.This object is achieved in that the sieve elements are in one piece and plate-shaped, that both profiles are made of plastic, that on one of the two profiles a protruding bar is integrally formed, which rests releasably in a groove-shaped recess of the other profile, and that the upper profile is held by a latching connection on the lower profile, at least one side surface of each bar having teeth which engage in corresponding tooth-shaped recesses in at least one wall of the groove-shaped recess of the other profile.

Nicht nur bei vollständigem Einstecken der Leiste in die Nut wird ein sicherer Halt des oberen Profils geschaffen, sondern auch schon bei teilweisem Einstecken, so daß unterschiedliche Abstände der Profile voneinander bei sicherer Befestigung erzielbar sind, und damit Siebelemente verschiedenster Dicke befestigt werden können. Diese Befestigungsweise erlaubt eine einfache und schnelle Montage der unterschiedlichsten Siebe, wobei nach dem Einsatz einer Siebart, wie z. B. einem Drahtgewebe, eine andere Siebart, wie z. B. ein Preßschweißgitter oder Kunststoffsieb ohne Anpassungsarbeiten sicher befestigt werden kann. Ferner kann auch jederzeit bei kleinstem Arbeitsaufwand ein Kunststoffelement anstelle eines Metallsiebelementes befestigt werden. Darüber hinaus bietet diese Konstruktion einen sicheren Schutz der Metallschienen vor Verschleiß, geringe Außenabmessungen und geringes Gewicht. Auch bilden das untere und obere Profil den Rand eines Siebelementes, so daß beim Auswechseln der Siebelemente nur noch die das Sieben bewirkenden Flächen und nicht die Siebelementränder erneuert werden. Dies ist eine erhebliche Materialersparnis. Die erfindungsgemäße Lehre bedeutet eine Trennung von Halteelementen und siebeffektiven Teilen eines Siebelementes.Not only when the strip is fully inserted into the groove, a secure hold of the upper profile is created, but also with partial insertion, so that different distances of the profiles from one another can be achieved with secure fastening, and thus sieve elements of various thicknesses can be fastened. This method of attachment allows a simple and quick installation of a wide variety of screens, whereby after using a screen, such. B. a wire mesh, another sieve, such as. B. a pressure welding grid or plastic screen can be securely attached without adjustment work. Furthermore, a plastic element can be attached instead of a metal sieve element at any time with the least amount of work. In addition, this construction offers reliable protection of the metal rails against wear, small external dimensions and low weight. The lower and upper profile also form the edge of a sieve element, so that when the sieve elements are replaced, only the surfaces causing the sieving and not the edges of the sieve element are replaced. This is a considerable saving in material. The teaching according to the invention means a separation of holding elements and sieve-effective parts of a sieve element.

Aus der EP-A 59 058 ist an sich ein Befestigen von Wandelementen zwischen zwei Profilen bekannt, die sägezahnförmige Vorsprünge aufweisen. Diese Vorsprünge werden aber nicht dazu genutzt, unterschiedliche Raststellungen zu erreichen, um verschieden dicke Wandelemente zu halten.From EP-A 59 058 it is known per se to attach wall elements between two profiles which have sawtooth-shaped projections. However, these projections are not used to achieve different locking positions in order to hold wall elements of different thickness.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen aufgeführt.Advantageous embodiments of the invention are listed in the subclaims.

Drei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben. Es zeigen:

  • Fig. 1 einen senkrechten Schnitt durch ein erstes Ausführungsbeispiel;
  • Fig. 2 einen senkrechten Schnitt durch ein zweites Ausführungsbeispiel;
  • Fig. 3 eine Draufsicht auf ein Siebelement nach dem zweiten Ausführungsbeispiel und
  • Fig. 4 einen senkrechten Schnitt durch ein drittes Ausführungsbeispiel.
Three embodiments of the invention are shown in the drawings and are described in more detail below. Show it:
  • Figure 1 is a vertical section through a first embodiment.
  • Figure 2 is a vertical section through a second embodiment.
  • Fig. 3 is a plan view of a screen element according to the second embodiment and
  • Fig. 4 is a vertical section through a third embodiment.

Die beiden Schenkel eines nach oben hin offenen U-Profils 1 bilden eine erste und zweite Metallschiene 1a, 1b, deren obere Schenkelenden nach innen umgebogen sind und zwischen sich einen Spalt 1c haben. Auf dem Profil 1 ist ein erstes, unteres Profil 2 aus Kunststoff, insbesondere Polyurethan befestigt, das an seiner Unterseite zwei Längsnuten 3, 4 aufweist, in denen die oberen Enden der Schienen 1a, 1 b einrastend einliegen.The two legs of an upwardly open U-profile 1 form a first and second metal rail 1a, 1b, the upper leg ends of which are bent inwards and have a gap 1c between them. A first, lower profile 2 made of plastic, in particular polyurethane, is fastened on the profile 1 and has on its underside two longitudinal grooves 3, 4, in which the upper ends of the rails 1 a, 1 b lie in a snap-in manner.

In der Oberseite des Profils 2 ist mittig eine Längsnut 5 eingebracht, deren beide parallelen und in der Befestigung in einer Siebmaschine meist senkrechten Seitenwände sägezahnförmige Rücksprünge 6 aufweisen, wobei die steileren Flanken dem Nutenboden zugewandt sind. In dieser Nut 5 liegt einrastend eine federförmige Leiste 7 ein, die an der Unterseite eines zweiten, oberen Profils 8 aus Kunststoff, insbesondere Polyurethan, angeformt ist. Die Leiste 7 weist dieselbe Breite wie die Nut 5 auf und besitzt komplementär geformte sägezahnförmige Erhebungen 9. Da an jeder Seitenwand oder Seitenfläche des Vorsprungs 7 und der Ausnehmung 5 zwei oder mehr, insbesondere vier bis sieben über die gesamte Leisten- bzw. auch Nutenlänge Zähne vorgesehen sind, wird nicht nur bei vollständigem Einstecken der Leiste 7 in die Nut 5 ein sicherer Halt des oberen Profils 8 geschaffen, sondern auch schon bei teilweisem Einstecken, so daß unterschiedliche Abstände der Profile 2, 8 voneinander bei sicherer Befestigung erzielbar sind. Allein bei einem Einrasten von zwei Zähnen der Leiste 7 auf jeder Seite in der Nut 5 ist ein sehr hoher Kraftaufwand in Richtung des Pfeiles A erforderlich, un das Profil 8 von dem Profil 2 zu lösen.In the top of the profile 2 is one in the middle Longitudinal groove 5 is introduced, the two parallel and sawtooth-shaped recesses 6, the side walls of which are usually vertical in the fastening in a screening machine, the steeper flanks facing the groove bottom. In this groove 5 there is a snap-in strip 7, which is molded onto the underside of a second, upper profile 8 made of plastic, in particular polyurethane. The strip 7 has the same width as the groove 5 and has complementarily shaped sawtooth-shaped elevations 9. Because on each side wall or side surface of the projection 7 and the recess 5 two or more, in particular four to seven, teeth over the entire length of the strip or groove are provided, a secure hold of the upper profile 8 is created not only when the strip 7 is fully inserted into the groove 5, but also when it is partially inserted, so that different distances of the profiles 2, 8 from one another can be achieved with secure fastening. Just when two teeth of the bar 7 engage on each side in the groove 5, a very high expenditure of force in the direction of the arrow A is required in order to detach the profile 8 from the profile 2.

Zu beiden Seiten der Profile 2, 8 bilden diese zwischen sich je einen Spalt 10, 11, wobei die untere Seitenwand 10a, 11 der Spalten von der seitlichen Oberseite des unteren Profils 2 und die oberen Seitenwände 10b, 11b von den seitlichen Unterseiten des oberen Profils 8 gebildet werden. An den Seitenwänden 10a, 10b, 11a, 11b sind in die Spalten (Nuten) 10, 11 hineinragende, zu den Profilen 2, 8 parallele Erhebungen (Längsrippen, Lippen) 12, 13 angeformt, deren Querschnitt sich mit dem Abstand von der jeweiligen Seitenwand verjüngt und vorzugsweise zahnförmig, insbesondere sägezahnförmig ist. Die zahnförmigen Erhebungen 12 der Seitenwände 10a, 11 fluchten mit einer Flanke mit den Seitenwänden des unteren Profils 2 und sind im Querschnitt kleiner ausgeführt als die Erhebungen 13 am oberen Profil 8. Die Erhebungen 12, 13 sind aufgrund des begrenzt nachgiebigen Kunststoffmaterials flexibel.On both sides of the profiles 2, 8, these each form a gap 10, 11, the lower side wall 10a, 11 of the columns from the lateral top of the lower profile 2 and the upper side walls 10b, 11b from the lateral undersides of the upper profile 8 are formed. On the side walls 10a, 10b, 11a, 11b protrusions (longitudinal ribs, lips) 12, 13 protruding into the gaps (grooves) 10, 11 and parallel to the profiles 2, 8 are formed, the cross-section of which increases with the distance from the respective side wall is tapered and preferably tooth-shaped, in particular sawtooth-shaped. The tooth-shaped elevations 12 of the side walls 10a, 11 are flush with one side with the side walls of the lower profile 2 and are made smaller in cross-section than the elevations 13 on the upper profile 8. The elevations 12, 13 are flexible due to the limited resilient plastic material.

In die beiden Spalte 10, 11 einliegende metallene Siebelemente, insbesondere Drahtgewebe oder Preßschweißgitter 14,15 werden von den Seitenwänden der Spalten 10, 11, insbesondere von den Erhebungen 12, 13 erfaßt, wobei diese Erhebungen im Bereich der Siebdrähte und/oder Siebprofile begrenzt nachgeben und dabei teilweise sich nach außen hin verformen. Je nach der Stärke der Teile der metallenen Gitter ist der Vorsprung 7 des Profils 8 mehr oder weniger tief in das Profil 2 einschiebbar. Das obere Profil 8 weist insbesondere im Bereich der Erhebung 13 eine größere Breite auf als die des Unterprofils 2, so daß die Profile 1 und 2 und insbesondere die in den Spalten 10, 11 liegenden Bereiche der Siebelemente als auch die Spalte 10, 11 vor dem Siebgut sicher geschützt sind.Metal sieve elements, in particular wire mesh or pressure welding grids 14, 15, which lie in the two gaps 10, 11, are grasped by the side walls of the gaps 10, 11, in particular by the elevations 12, 13, these elevations yielding to a limited extent in the area of the sieve wires and / or sieve profiles and partially deform outwards. Depending on the thickness of the parts of the metal grid, the projection 7 of the profile 8 can be inserted more or less deeply into the profile 2. The upper profile 8 has, in particular in the region of the elevation 13, a greater width than that of the lower profile 2, so that the profiles 1 and 2 and in particular the regions of the sieve elements lying in the columns 10, 11 and also the columns 10, 11 in front of the Screenings are safely protected.

Das in Fig. 2 und 3 dargestellte Ausführungsbeispiel unterscheidet sich von dem nach Fig. 1 dadurch, daß statt eines metallenen Siebelements ein Siebelement 14a aus Kunststoff verwendet wird, das an den Rändern, die zwischen den Profilen 2, 8 klemmend gehalten werden, eine geringere Dicke bzw. Stärke aufweist. Diese Randstreifen 16, die zumindest an zwei einander gegenüberliegenden Seiten, insbesondere den Längsseiten angeformt sind, können mit ihrer Oberseite niedriger liegen als die siebwirksame Oberfläche des Elements, so daß eine senkrechte Seitenkante 8a des oberen Profils 8 an einer seitlichen Stirnseite des Elements 14a abdichtend anliegt. Die Randstreifen 16 weisen quer zur Längserstreckung in regelmäßigem Abstand Erhebungen bzw. Rippen 17 auf, die zusätzlich auch an den Unterseiten der Randstreifen als Erhebungen bzw. Rippen 18 angeordnet sein können und von den Erhebungen 12 und 13 erfaßt werden und damit dem Siebelement in Richtung des Randstreifens einen zusätzlichen Halt geben.The embodiment shown in FIGS. 2 and 3 differs from that of FIG. 1 in that instead of a metal sieve element, a plastic sieve element 14a is used, which is less at the edges that are clamped between the profiles 2, 8 Has thickness or strength. These edge strips 16, which are integrally formed on at least two opposite sides, in particular the long sides, can be lower with their upper side than the screen-effective surface of the element, so that a vertical side edge 8a of the upper profile 8 lies sealingly against a lateral end face of the element 14a . The edge strips 16 have transversely to the longitudinal extent at regular intervals elevations or ribs 17, which can also be arranged on the undersides of the edge strips as elevations or ribs 18 and are detected by the elevations 12 and 13 and thus the sieve element in the direction of Give the edge strip an additional hold.

Das Ausführungsbeispiel nach Fig. 4 unterscheidet sich von dem vorherigen dadurch, daß das untere Profil 2 allein durch Zapfen 18 in Öffnungen der Unterkonstruktion, insbesondere in Bohrungen eines nicht dargestellten Profils gehalten ist.The embodiment according to FIG. 4 differs from the previous one in that the lower profile 2 is held solely by pins 18 in openings in the substructure, in particular in bores of a profile, not shown.

Claims (20)

1. Screen bottom with replaceable screen elements (14,15) secured side-by-side with one another which are secured to a supporting sub-frame (1), in which, in the region where two adjacent screen elements (14, 15) adjoin, a lower profiled member (2) is secured on the supporting sub-frame (1) and grips the undersides of the edges of at least two adjoining screen elements (14,15), and above this profiled member (2) a second, upper profiled member (8) is secured in such a way that it can be detached, and on each side a screen element (14,15) is gripped between the upper and lower profiled members, characterized in that the screen elements (14, 15) are one-piece and laminar, in that both profiled members (2, 8) are made of synthetic material, in that a projecting strip (7) is formed onto one of the two profiled members (8) and is located in a slot-shaped recess (5) in the other profiled member (2) in such a way that it can be detached, and in that the upper profiled member (8) is secured to the lower profiled member (2) by a detent connection, in which at least one side of each strip (7) has teeth (9) which engage in corresponding tooth-shaped offsets (6) in a least one side of the slot-shaped recess (5) in the other profiled member (2).
2. Screen bottom according to Claim 1, characterized in that the screen elements (14,15) are metal netting or grids.
3. Screen bottom according to Claim 1, characterized in that the screen elements are made of synthetic material and for preference have metal inserts as reinforcement.
4. Screen bottom according to one of the preceding Claims, characterized in that the lower profiled member (2) made of synthetic material forms the two side-by-side slots (3, 4) within which are located the upper ends of two parallel rails (1 a, 1 b).
5. Screen bottom according to one of the preceding Claims, characterized in that at least one strip or spigot (18) of the lower profiled member (2) is located in one or more openings in the sub-frame for the purposes of fastening.
6. Screen bottom according to one of Claims 3 to 5, characterized in that, on two opposite sides, the screen elements (14a) have edge strips (16) of lesser thickness which are gripped between upper and lower profiles (2, 8).
7. Screen bottom according to Claim 6, characterized in that the edge strips (16) have protuberances, especially ribs (17), lying on the upper and/or under surfaces perpendicular to the strips.
8. Screen bottom according to one of the preceding Claims, characterized in that the protuberances, especially the teeth (9) of the sides are formed in such a way that a greater force can be transmitted in the extraction direction (A) of the projection (7), in particular the strip, than in the reverse direction.
9. Screen bottom according to Claim 8, characterized in that the teeth are saw-tooth-shaped and engage in correspondingly formed saw-tooth-shaped offsets in the recess.
10. Screen bottom according to Claims 8 or 9, characterized in that the steeper sides of each offset (6) in the recess (5) face towards the base of the recess (5).
11. Screen bottom according to one of Claims 1 to 8, characterized in that the protuberances and offsets (6), in particular the saw teeth (9), run along the entire length of each projection (7) and each recess (5).
12. Screen bottom according to one of the preceding Claims, characterized in that on each side the two profiled members (2, 8) form a gap (10, 11) which is preferably horizontal and one side of which (10b, 11 b) is formed by the under surface of the upper profiled member (8) and the other side of which (10a, 11 a) is formed by the upper surface of the lower profiled member (2).
13. Screen bottom according to Claim 12, characterized in that at least one side (10a, 10b, 11 a, 11 b) of the gap (10, 11) has at least one protuberance (lip, strip) (12, 13) formed lengthwise on it which can be deformed by the inserted screen element (14, 15).
14. Screen bottom according to Claim 13, characterized in that the cross-section of the protuberance (12, 13) of the sides of the gap (10a, 10b, 11a, 11b) taper with the distance from the side.
15. Screen bottom according to Claims 13 or 14, characterized in that the protuberance (12, 13) forms the outer edge of the gap (10, 11).
16. Screen bottom according to one of Claims 13 to 15, characterized in that the protuberance (12,13) is tooth-shaped, in particular saw-tooth-shaped, in cross-section.
17. Screen bottom according to Claim 16, characterized in that the steeper side of the protuberance (12, 13) is aligned with the vertical side of the profiled member (2) involved.
18. Screen bottom according to one of Claims 13 to 17, characterized in that protuberances (13) of the upper profiled member (8) are made larger than those (12) of the lower profiled member.
18. Screen bottom according to one of Claims 13 to 18, characterized in that the protuberances (12, 13) can be partially pressed outwards by the pressure of the screen elements (14, 15).
20. Screen bottom according to one of Claims 12 to 19, characterized in that in the sides (10a, 10b, 11a, 11b) and/or in the protuberances (12, 13) on the sides of the gaps (10, 11) there are depressions to accept parts of the screen elements.
EP84101661A 1983-03-05 1984-02-17 Screen bottom with replaceable screen elements Expired EP0118800B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84101661T ATE34929T1 (en) 1983-03-05 1984-02-17 SCREEN COVER WITH INTERCHANGEABLE SCREEN ELEMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3307916 1983-03-05
DE19833307916 DE3307916A1 (en) 1983-03-05 1983-03-05 SCREEN COVER WITH INTERCHANGEABLE SCREEN ELEMENTS

Publications (3)

Publication Number Publication Date
EP0118800A2 EP0118800A2 (en) 1984-09-19
EP0118800A3 EP0118800A3 (en) 1985-04-17
EP0118800B1 true EP0118800B1 (en) 1988-06-08

Family

ID=6192675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101661A Expired EP0118800B1 (en) 1983-03-05 1984-02-17 Screen bottom with replaceable screen elements

Country Status (7)

Country Link
US (1) US4670136A (en)
EP (1) EP0118800B1 (en)
JP (1) JPS59173169A (en)
AT (1) ATE34929T1 (en)
AU (1) AU569281B2 (en)
DE (2) DE3307916A1 (en)
ZA (1) ZA841342B (en)

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DE4303892C2 (en) * 1993-02-10 2001-07-12 Ludwig Krieger Draht Und Kunst Screen covering
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US5361911A (en) * 1994-04-14 1994-11-08 Miller Wire Works, Inc. Screening panel attachment system
AU700843B2 (en) * 1994-10-19 1999-01-14 Lettela Proprietary Limited Screen panel fixing system
US5507396A (en) * 1994-11-29 1996-04-16 Carter Day International, Inc. Rotating sizer with screen panels
US5613544A (en) * 1995-01-10 1997-03-25 Schaefer; Jerry E. Molding system
AUPN514395A0 (en) * 1995-08-31 1995-09-21 Lettela Proprietary Limited Screening apparatus
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US5816413A (en) * 1995-09-08 1998-10-06 W.S. Tyler, Canada Wire screen deck having replaceable modular screen panels
WO1997028377A2 (en) * 1996-01-30 1997-08-07 Plastic Cores Limited Fastening devices
DE19635189C2 (en) * 1996-08-30 1999-01-28 Voith Sulzer Stoffaufbereitung Process for the production of sieves
AU724980B2 (en) * 1998-09-03 2000-10-05 Schenck Process Australia Pty Ltd Ore screening panel system
US6206200B1 (en) 1999-01-19 2001-03-27 United States Filter Corporation Mounting system for modular panels used in a screen deck
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US6957741B2 (en) * 2001-08-07 2005-10-25 Manfred Franz Axel Freissle Screening arrangement
US6736271B1 (en) 2001-12-17 2004-05-18 Peter C. Hall Screen apparatus and method
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US7063214B2 (en) * 2003-02-04 2006-06-20 Varco I/P, Inc. Interlocking screens for vibratory separators
US20060108264A1 (en) * 2004-01-30 2006-05-25 Moore Kevin J Screening support frame
US7654394B2 (en) * 2004-06-14 2010-02-02 Action Equipment Company, Inc. Flexible mat screening or conveying apparatus
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MY160743A (en) * 2011-03-08 2017-03-15 Tega Ind Ltd Screen panel with improved screening area
US8800779B2 (en) * 2011-07-05 2014-08-12 Lumsden Corporation Screen surface forming system
US8757392B2 (en) 2011-11-23 2014-06-24 Action Vibratory Equipment, Inc. Flexible mat screening apparatus with offset supports
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CN110624817B (en) * 2019-09-18 2022-04-01 上海盾牌矿筛有限公司 Standard screen with replaceable filter screen for fine sand

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EP0059058A1 (en) * 1981-02-21 1982-09-01 Donald Arthur Reynolds Building system

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Also Published As

Publication number Publication date
JPS645950B2 (en) 1989-02-01
EP0118800A3 (en) 1985-04-17
AU569281B2 (en) 1988-01-28
US4670136A (en) 1987-06-02
ATE34929T1 (en) 1988-06-15
DE3471891D1 (en) 1988-07-14
ZA841342B (en) 1984-10-31
JPS59173169A (en) 1984-10-01
AU2485984A (en) 1984-09-06
DE3307916A1 (en) 1984-09-06
EP0118800A2 (en) 1984-09-19

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