EP3755921A1 - Junction device for conveyor belts - Google Patents

Junction device for conveyor belts

Info

Publication number
EP3755921A1
EP3755921A1 EP19713096.6A EP19713096A EP3755921A1 EP 3755921 A1 EP3755921 A1 EP 3755921A1 EP 19713096 A EP19713096 A EP 19713096A EP 3755921 A1 EP3755921 A1 EP 3755921A1
Authority
EP
European Patent Office
Prior art keywords
interfaces
junction
conveyor belt
plates
plate
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.)
Withdrawn
Application number
EP19713096.6A
Other languages
German (de)
French (fr)
Inventor
Bernard Tavernier
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.)
FP Business Invest SAS
Original Assignee
FP Business Invest SAS
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 FP Business Invest SAS filed Critical FP Business Invest SAS
Publication of EP3755921A1 publication Critical patent/EP3755921A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G3/00—Belt fastenings, e.g. for conveyor belts
    • F16G3/08—Belt fastenings, e.g. for conveyor belts consisting of plates and screw-bolts or rivets

Definitions

  • the present invention relates to a joining device for conveyor belts for connecting ends of a conveyor belt.
  • conveyor belt will, by convention, in the present description, both the conveyor belt and belt direction.
  • Conveyor belts also known as conveyor belts, are known to transport different materials or products, such as coal, ores, industrial or agricultural products.
  • These conveyor belts consist of strips made of a reinforced elastomer, or an armed synthetic material, of an appropriate length and width, the ends of which must be connected together, before assembly, or after mounting, on support and driving devices comprising return rollers and idler rollers. Often these devices also comprise tensioning members, for the purpose of tightening the conveyor belt.
  • vulcanization is used when the web is made of a reinforced vulcanizable elastomer. After preparation work to create in each end complementary profiles that apply to each other when bringing said ends closer, the vulcanization is carried out with input of heat and pressure as is well known. A variant of vulcanization is cold bonding.
  • connection means consists in using U-shaped clips cut in metal strip, which clips comprise upper plates and lower plates connected by knuckles, these clips being fixed in two series to mounted on each of the ends of the conveyor belt to be connected, so that the knuckles protrude and that those of one series can be interwoven between the knuckles of the other series, a connecting rod and hinge being then passed to the The interior of the knuckles is nested so as to connect the two ends thus forming a kind of hinge.
  • Known means used to secure the staples on the conveyor belt ends consist of rod attachment means such as spikes, rivets and screws.
  • These devices comprise an upper plate and a lower plate, possibly connected by a central part.
  • These lower and upper plates have a spacing adapted to engage the respective end of a conveyor belt, by making it come approximately abutting against the central portion, or in the case where the connecting device does not have a central portion. , against a spacer provided for this purpose during assembly, then removed later.
  • these connecting devices comprise two pairs of fixing wings vis-a-vis, the ends of the conveyor belt being introduced respectively between two wings of the same pair.
  • the fixing of the lower and upper parts forming a connecting plate on the ends of the conveyor belt is generally carried out by means of rivets, spikes, crampons, screw-nut systems, or by cold gluing or by flat vulcanization. wings against the outer flat surfaces of the conveyor belt engaged between the wings.
  • These joining devices are made of a flexible and elastic material, for example vulcanized rubber, or a synthetic material such as polyurethane and they generally comprise an embedded reinforcement.
  • the proposed junction devices are generally made of a flexible and elastic material in which is embedded a reinforcement, for example textile, having a stretch in the longitudinal direction.
  • the longitudinal direction is by convention and for the convenience and clarity of the disclosure throughout the present description the longitudinal direction of the conveyor, and also applies to the operating device as it should be mounted on the conveyor belt.
  • the transverse direction is the direction perpendicular to the longitudinal direction thus defined, whatever the dimensions of the splicing device considered in isolation.
  • This extensibility of the reinforcements of this kind of joining devices in the longitudinal direction is intended to allow the operating devices mounted on the conveyor belts, to cross repeatedly, without wear or excessive fatigue, resulting in rapid deterioration, the curved parts the conveyor belt path, that is, bypassing the drive rollers, idler rollers and idler rollers.
  • the upper part of the junction devices undergoes a force while their lower part (that is to say the one facing the outer surface of the rollers) undergoes a compressive force, and this, because of the difference in the course of these parts, these courses being directly proportional to the radius of curvature, which varies due to the thickness of the junction devices. Since these stresses are very different between the lower and upper parts, and in order to further improve the wear resistance of these joining devices, it is known to give the upper part a greater extensibility than that of the lower part.
  • the central part has then evolved so as to be separated from the lower and upper plates, so as to leave room for the use of independent spacers used at the time of assembly against which the first of the ends of the conveyor belt which is set up in the junction, between the lower and upper plates, then these spacers are removed before placing the second end of the conveyor belt.
  • junction devices were made by molding or injection and had an "H" structure whose lower and upper plates and the central portion were formed in one piece. This required for their manufacture as many molds as the thickness of conveyor belts encountered in the field, and had to be manufactured, therefore, in very small series, which increased the cost price, the manufacture, storage and the distribution.
  • the lower plate is arranged to undergo without damage the passage on rollers, motors or return, causing or returning the conveyor belt at the ends of which is mounted the connecting device considered, the lower plate coming directly into contact with these drive members of the band.
  • the upper plate is directly in contact with the different materials or different products transported on the conveyor belt.
  • the upper plate is also generally swept by scrapers.
  • the object of the present invention is to propose a solution which corresponds to an evolution of this type of existing junctions and which makes it possible to guarantee even a reduction of costs in order to reduce the cost price, to manufacture, storage and distribution. this of course without harming in any way the quality of the product obtained, that is to say, by maintaining or improving the quality and strength of the connecting device and ensuring the excellence of these fastening means .
  • the invention relates to a junction plate for a conveyor belt connection device for connecting two ends of a conveyor belt, the junction device being of the type comprising at least two junction plates fastened together with the ends. of the conveyor belt by fastening means each comprising a head and an anchoring section, for example an anchoring end opposite to the head, the connecting plate being remarkable in that it comprises first interfaces for cooperating with the heads of the fastening means and the second interfaces to cooperate with the anchoring sections of the fastening means, the second interfaces being distinct from the first interfaces and comprising inserts incorporated at least partly in the joining plate, the first and second interfaces being arranged to form a succession of repeating patterns, and that aque motif has as many first interface (s) as second interface (s).
  • the invention also relates to an alternative solution, possibly complementary, namely a connecting plate for a conveyor belt joining device intended to connect two ends of a conveyor belt, the joining device being of the type comprising at least two plates of junction fixed together with the ends of the conveyor belt by fastening means each comprising a head and an anchor portion provided with a thread, the junction plate being remarkable in that it comprises first interfaces to cooperate with the heads of the fastening means and the second interfaces for cooperating with the anchoring sections of the fastening means, the first and second interfaces being arranged so as to form a succession of patterns which are repeated, and in that each pattern has as many first interface (s) as second interface (s).
  • Such a joining plate has the particular advantage of being able to be used both as an upper joining plate and as a lower joining plate. In this way, it becomes possible to manufacture a single type of junction plates and no longer two different junction plates, each having, in the prior art, the same type of fastener interfaces.
  • interface an element or a means that is configured to allow to establish a cooperation between two elements.
  • junction plates are generally cut into a strip or portion of continuous strip of several successive junction plates. In such a configuration, it is thus possible to manufacture a lower junction plate and a corresponding upper junction plate from the same strip or portion of junction strip, despite the fact that the first and second interfaces are distinct. .
  • a pattern comprises a first and a second sub-pattern, the second pattern being complementary to the first pattern, and the first and second interfaces being arranged so as to form an alternating succession of a first and a second sub-patterns that are repeated alternately and successively.
  • a junction plate is able to be superimposed with another junction plate having the same characteristics in order to be able to mate with each other and together form a junction device.
  • a junction plate has first and second opposed wings, each configured to cover a distinct end of the conveyor belt on the same side, each of said wings having a sub-pattern defined by a provision first and / or second interfaces, the sub-pattern of one of said wings being complementary to the sub-pattern of the other of said wings.
  • the provisions of the interfaces defining each of the two sub-patterns are symmetrical with respect to a median axis of the junction plate separating said wings but that, at the position of a first interface on a wing corresponds the position of a second interface on the other wing.
  • the first wing comprises only first interfaces and the second wing having only second interfaces.
  • the first and / or second interfaces comprise inserts, the inserts being incorporated at least partly in the junction plates.
  • the first interfaces comprise inserts, that is to say that they are not incorporated in the junction plate, and the second interfaces comprise inserts incorporated at least partly in the junction plate. .
  • the inserts are arranged to complement and / or reinforce an interface area of the junction plate from a first interface, such as an orifice adapted to be traversed by the fastening means.
  • the first interfaces comprise pierced washers comprising a bowl adapted to house a head of the fastening means.
  • the washers forming first interfaces thus form associated parts around and in addition to an orifice of the junction plate adapted to be traversed by the fastening means.
  • the washers may be incorporated into the same junction plate together, these washers may also be incorporated in the junction plate, that is to say embedded in the flexible and elastic material such as vulcanized rubber forming the junction plate.
  • the second interfaces comprise a cylindrical tubular part whose inner cylindrical surface is adapted to cooperate with an anchoring section of the fixing means.
  • the invention also relates to a conveyor junction device for connecting two ends of the conveyor belt, the junction device comprising at least two junction plates configured to each cover a distinct side of the ends of the conveyor belt.
  • conveyor belt so that said conveyor belt is disposed between the two junction plates, the junction plates being fixed together by fastening means arranged to cross respectively a junction plate, one of the ends of the conveyor belt and then the another junction plate, the fixing means each comprising a head and an anchoring section, for example an anchoring end opposite to the head, the connecting plates having first interfaces for cooperating with the heads of the fixing means and second interfaces for cooperating with the anchoring sections of the fixing means one, the junction device being remarkable in that the junction plates have all or part of the aforementioned characteristics and in that they are arranged to mate with each other.
  • Such a connecting device allows a reduction in costs to reduce the cost, manufacturing, storage and distribution since the connecting plates that compose it are manufactured in the same pattern while being complementary to allow the junction of the ends of the conveyor belt.
  • each of the junction plates comprises as many first interfaces as second interfaces.
  • the junction plates are identical.
  • the patterns of the two junction plates are offset by a predetermined pitch.
  • each of the junction plates comprises first and second opposed wings and configured to each cover a distinct end of the conveyor belt on the same side, the first wing comprising only first interfaces and the second wing comprising only second interfaces.
  • each of the two wings of the junction plate has the same type of interface, first or second interfaces.
  • This is particularly advantageous in terms of manufacture of the junction plate. Indeed, it being manufactured preferably continuously, it is possible to have in the same manufacturing area, on one side a tool that would put in place the first interfaces on one of the two wings, and, on the other side another tool that would put in place the second interfaces on one of the two wings. This operation can also be done manually, by two people concomitantly. During production, the production line is therefore particularly optimized and manufacturing time decreased since both operations can be performed concomitantly and not successively.
  • the fastening means comprise screws having a head and an anchor section provided with a thread.
  • the invention also relates to a method of manufacturing a joint plate having all or some of the aforementioned characteristics, remarkable in that it comprises at least the following steps:
  • Such a manufacturing method is particularly advantageous in that it allows a continuous manufacture of several successive junction plates.
  • the lower and upper junction plates are then cut in the same strip or strip portion thus manufactured.
  • Figure 1 a plan view of a junction device of the prior art, seen from above;
  • Figure 2 is a longitudinal sectional view along section AA of Figure 1 of a junction device, exploded the various elements that constitute it;
  • FIG. 3A a plan view of a junction device according to an embodiment of the invention, seen from above;
  • Figure 3B a longitudinal sectional view of the connecting device of Figure 3A;
  • FIG. 4A a plan view of a junction device according to another embodiment of the invention, seen from above;
  • Figure 4B a longitudinal sectional view of the connecting device of Figure 4A;
  • FIG. 5 a perspective view of a junction device according to another embodiment of the invention.
  • FIG. 6 is a sectional view of a fastening means according to one embodiment
  • FIGS. 7A, 7B, 7c and 7d schematic examples of patterns formed by the first and second interfaces according to different embodiments.
  • FIG. 1 which is a plan view, from above, of a junction device 1 according to the prior art and shows an upper junction plate 4 of a junction device 1.
  • the skinned 11a and 11b show two types of textile-type reinforcements, which are woven: in the frame 11a, the fabric is arranged in such a way that its weft threads, or its warp threads, are oriented at least approximately in the longitudinal direction of the connecting device 1.
  • the longitudinal direction X of the junction device 1 corresponds, in the present description, to the longitudinal direction X of the conveyor belt 2, the junction device 1 being mounted on the ends 3 of the conveyor belt 2 that it connects.
  • the transverse direction Y of the junction device 1 is, according to the same convention, the direction perpendicular to the longitudinal direction X. This convention is applied regardless of the effective dimensions of the junction device 1 in these two directions.
  • the junction device of FIG. 1 is composed of three elements: an upper junction plate element 4, an intermediate element 9 located under the middle part of the junction plate 4 which is not visible in Figure 1 other than by the two dashed lines located on either side of the two median screws 5 delimiting under the upper junction plate 4 the edges ends of the conveyor belt 2 to be connected, and a lower junction plate member 4, not visible in Figure 1, which is located under the intermediate member 9 and under the upper junction plate member 4.
  • FIG. 2 shows successively: assembly screws 51 forming fixing means 5,
  • the intermediate element 9 comprising an incorporated through bushing disposed vertically along a vertical axis Z,
  • the inserts 6 arranged to receive the heads 5a of screws 51 are generally in the form of 61 drilled washers having a bowl adapted to house the heads 5a of the screws 5 intended to pass through the hole of the drilled washers.
  • the central insert 6 ' is generally like the inserts 6 but has a central tubular portion, whose inner cylindrical surface is able to pass, with a very small clearance, to the corresponding screw 5, this screw does not thus not screwing into the insert 6 '.
  • the central tubular portion of the insert 6 ' protrudes from the lower surface of the upper joining plate 4.
  • the inserts 7 each comprise a central tubular portion whose internal cylindrical surface is threaded and is adapted to receive a screw 51 screwed into the internal thread, said central tubular parts protruding from the upper surface of the lower junction plate 4 of the device. junction 1.
  • the medial inserts T of the lower plate are like the inserts 7.
  • FIGS. 3A and 3B respectively show a plan view of a junction device 1 according to one embodiment of the invention, seen from above and a longitudinal sectional view of this junction device 1.
  • the junction device 1 comprises two junction plates 4 configured to be fastened together with the ends 3 of the conveyor belt 2 by fastening means 5 each comprising a head 5a and an anchoring section 5b forming an opposite anchoring end. at the head 5a (see Figure 6).
  • junction plates 4 of this junction device comprises first interfaces 6 for cooperating with the heads 5a of the fixing means 5 and second interfaces 7 to cooperate with the anchoring sections 5b of the fixing means 5.
  • the first and second distinct interfaces 6, 7 are arranged on each of the junction plates 4 so as to form a succession of patterns 8 which are repeated, and in that each pattern 8 has as many first interfaces 6 as second interfaces 7.
  • junction plates 4 of the connecting device 1 are arranged to mate with each other, that is to say that, in the assembled position of joining of said junction device 1:
  • each first interface 6 of a junction plate 4 is facing, vertically, with a second interface 7 of the other junction plate 4 of said junction device 1; and conversely:
  • each second interface 7 of a junction plate is facing, vertically, with a first interface 6 of the other junction plate 4 of said junction device 1,
  • each fastening means 5 cooperating with a pair of first and second interfaces facing each other, that is, aligned vertically to match the two joining plates 4.
  • junction device 1 provided with such junction plates 4 has the particular advantage of being able to present junction plates 4 that can be used indifferently as junction plate 4 upper or as a lower junction plate 4.
  • junction plates are generally cut in a strip or continuous strip portion of several successive junction plates extending in a main direction of this strip or strip portion, this main direction corresponding to the transverse direction Y of the strip conveyor.
  • the junction plates 4 are obtained after cutting, from said strip or band portion thus manufactured, junction plates 4 following predetermined dimensions.
  • the size of the cutout of a predetermined length is chosen according to the main direction of elongation of the strip or portion of strip so as to correspond to the width of the conveyor belt 1 whose ends must be connected and joined, each of the plates junction 4 extending over the entire width of the conveyor belt 2.
  • each pattern 8 has as many first interfaces 6 as second interfaces 7, it is then possible to form lower and upper junction plates 4 from the same band or band portion then manufactured.
  • the reinforcement (generally of textile type) is configured to have an extensibility of between 10% and 25%, preferably between 15% and 20%.
  • Stretchability is understood to mean the elongation capacity of the armature, that is to say that an extensibility of between 10 and 25% means that it is configured to withstand an elongation of at least 10 % and up to 25%, this without breakage or damage.
  • This extensibility of the reinforcement ie this longitudinal elastic elongation, also determines the extensibility of the joining plate itself since the reinforcement has a lower extensibility than that of the flexible material and elastic in which it is embedded (vulcanized rubber, synthetic material such as polyurethane, etc.).
  • Such extensibility in the longitudinal direction provides a good compromise of resistance to the stresses experienced by both the lower joint plate and the upper joint plate.
  • the first interfaces 6 comprise washers 61 forming inserts, said washers being held firmly against the connecting plate 4 by the pressure exerted by the head 5a of the fastening means 5. associated with said washer 61.
  • This pressure causes an elastic deformation of the material constituting the connecting plate 4 so that the washer 61 is housed in a recess of said connecting plate so that the washer 61 and the head 5a of the connecting means. both are flush, in the fixed position of the connecting device, with the associated surface of the junction plate 4.
  • This recess here created by simple elastic deformation can also be defined during the manufacture of the plate junction 4 by a cavity delimited beforehand in said junction plate 4 around the orifice intended to be traversed by the fixing means 5, this cavity being arranged to receive and receive the washer 61, this for each of the first interfaces 6 .
  • the second interfaces 7 comprise inserts 70, the inserts 70 of the second interfaces 7 being incorporated in the corresponding junction plate 4, and in particular embedded in the material constituting the junction plate 4, being however, protruding from the inward junction plate of the joining device 1 (i.e. towards the side where the joining strip is located in the assembled position).
  • This projection of the insert 70 is also preferably embedded in the material constituting the connecting plate 4.
  • the first interfaces 6 comprise washers 61 pierced with a bowl 62 adapted to house a head 5a fastening means 5;
  • the second interfaces 7 comprise a cylindrical tubular portion 71 whose inner cylindrical surface 72 is adapted to cooperate with an anchoring section 5b of the fixing means 5.
  • the two junction plates are identical and each of said junction plates 4 has as many first interfaces 6 as second interfaces 7.
  • each of the junction plates 4 comprises first and second longitudinally opposed wings 41, 42, each configured to cover a different end of the conveyor belt 2 on the same side since a junction plate 4 is disposed on the same side: one of the wings is configured to cover a side 3a of one end of the conveyor belt 2 and the other of the wings is configured to cover the same side 3a of the other end 3 of the conveyor belt 2 to be connected.
  • Each of said wings 41, 42 comprises a sub-pattern 8a, 8b defined by a geometric arrangement of the first and / or second interfaces 6, 7, the sub-pattern 8a of one of said 41 wings being complementary to the sub-pattern 8b on the other 42 of said wings.
  • each wing 41, 42 comprising a single row of interfaces:
  • one of the wings has a row of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, a first interface 6 forming alone a subpattern 8a;
  • the other 42 wings has a row of second interfaces 7 extending along the main direction of elongation of the connecting plate 4, namely in the transverse direction Y of the junction device 1, a second interface 7 forming alone a subpattern 8b.
  • a pattern 8 in this embodiment is formed by the sub-patterns 8a and 8b aligned in the longitudinal direction X. These two sub-patterns are complementary and a second junction plate 4, identical to the first and having the same pattern 8 , can be superimposed on it to pair with each other.
  • the upper junction plate 4 it suffices for the upper junction plate 4 to be oriented in the opposite direction to that of the lower junction plate 4 so that the flange 41 of one of the junction plates 4 is look with the other wing 42 of the other junction plate 4.
  • each of the rows of interfaces may be composed of a succession of first and second interfaces 6, 7 alternating along the transverse direction Y of the junction device 1, identical interfaces being aligned along the longitudinal direction X of the junction device 1, a pattern 8 then comprises:
  • a first sub-pattern 8a formed by a row portion having a first and a second interface 6, 7, and
  • a second sub-pattern 8b formed by a row portion having respectively a first and a second interface 6, 7,
  • the second pattern 8b here being symmetrical with the first pattern 8a with respect to a median axis D 'of the joining plate 4 (see FIG. 7A), and the first and second interfaces 6, 7 being arranged so as to form an alternating succession of 'a first and a second sub-pattern 8a, 8b which are repeated alternately and successively.
  • junction plate 4 is able to be superimposed with another junction plate having the same characteristics in order to form, together, a junction device 1.
  • a step corresponds to a half-pattern in the transverse direction Y of the junction device 1 so that each first interface of a junction plate 4 is arranged vertically to the right of a second interface of the other plate. junction of the junction device 1 corresponding.
  • the fastening means 5 are not illustrated in FIGS. 3A and 3B: these fastening means 5 typically comprise screws 51 having a head 5a and an anchoring section 5b provided with a thread 52. They are illutrated in detail on Figure 6.
  • FIGS. 4A and 4B respectively show a plan view of a junction device 1 according to one embodiment of the invention, seen from above and a longitudinal sectional view of this junction device 1.
  • each of the wings 41, 42 comprises two rows of interfaces.
  • each wing 41, 42 of a junction plate 4 comprises two rows of interfaces:
  • one of the wings has two substantially parallel rows of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, two first interfaces 6 neighbors longitudinally together forming a sub-pattern 8a;
  • the other 42 wings has two substantially parallel rows of second interfaces 7 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, two second interfaces 7 neighbors longitudinally together forming a sub-pattern 8b.
  • Figure 5 illustrates a perspective view of a junction device 1 according to another embodiment of the invention.
  • each of the wings comprises three rows of interfaces.
  • each wing 41, 42 of a junction plate 4 comprises three rows of interfaces:
  • one of the wings 41 has three rows of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, three neighboring first interfaces 6 longitudinally and substantially aligned together forming a sub-pattern 8a;
  • the other 42 wings present, three rows of second interfaces 7 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, three second interfaces 7 longitudinally adjacent and substantially aligned together forming a sub-pattern 8b.
  • each of the wings are arranged in staggered rows, in order to evenly distribute the forces transmitted by the fastening means to the junction plates 4 in the junction position.
  • FIG. 6 is a section along a vertical plane of an exemplary fastening means 5 according to the present invention, comprising a screw 51 forming an assembly screwed by the fixing means 5 comprising the upper joining plate 4, one end 3 of the conveyor belt 2 and the lower junction plate 4.
  • the first interface 6 arranged to receive the heads 5a of screws 51 has a washer 61 pierced by an orifice and having a bowl around this orifice adapted to house the heads 5a of the screws 5 intended to pass into said hole washers 61 drilled.
  • the second interface 7 comprises an insert 70 having a tubular portion 71 whose inner cylindrical surface is threaded and is adapted to receive a thread screw thread 51 forming the anchoring section 5b of the screw 51, this to be screwed.
  • the tubular portion 71 of the insert 70 protrudes from the inner surface of the lower junction plate 4 of the joining device 1.
  • FIGS. 7A, 7B, 7C and 7D illustrate schematic examples of patterns formed by the first and second interfaces 6, 7 according to different modes of embodiments and whose pattern is configured so that a successiveion of such patterns on a junction plate 4 can match with a succession of the same pattern of another junction plate 4 which would be arranged opposite the first.
  • first and second interfaces 6, 7 are schematized by the numbers 1 and 2 surrounded, respectively, to facilitate understanding.
  • first and second interfaces 6, 7 can be interposed, as is illustrated in more detail in the example of Figure 7D.
  • the median axis when it is free of interfaces, that is to say when it has no interface in this area, it defines a median zone without interface between the two wings which improves the elasticity of the junction device at this location and improves its mechanical strength. Indeed, a row of interfaces along the median axis could favor to a lesser extent a beginning of rupture.
  • a junction plate 4 is able to be superimposed with another junction plate having the same characteristics in order to form, together, a junction device 1.
  • the upper junction plate 4 is oriented in the opposite direction to that of the lower junction plate so that the flange 41 of one of the junction plates 4 is facing the other flange 42 of the other plate of junction 4 but also that the two junction plates 4 of the junction device are shifted by a predetermined pitch p to be complementary.
  • a step corresponds to a half-pattern in the transverse direction Y of the junction device 1 so that each first interface 6 of a junction plate 4 is arranged vertically to the right of a second interface 7 of the other junction plate 4 of the junction device 1 corresponding.
  • FIG. 7B illustrates an exemplary embodiment which differs substantially from that of FIG. 7A in that the second pattern 8b here is complementary and no longer symmetrical with the first pattern 8a with respect to the median axis D 'of the plate junction 4.
  • the same conveyor belt or conveyor can be formed by the meeting or joining of several conveyor belts connected together by a junction device as described above.
  • the number of rows of interfaces may also vary depending on the desired use.
  • the patterns may vary.
  • the junction plates 4 are obtained from the same pattern, whatever it may be, and configured so that said junction plates are able to mate with each other.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)

Abstract

The invention relates to a junction plate (4) for a junction device (1) for a conveyor belt (2) intended to connect two ends (3) of a conveyor belt (2), the junction device (1) being of the type comprising at least two junction plates (4) secured together with the ends (3) of the conveyor belt (2) by securing means (5) each comprising a head (5a) and an anchoring section (5b); the junction plate (4) being noteworthy in that it comprises first interfaces (6) for cooperating with the heads (5a) of the securing means (5) and second interfaces (7) for cooperating with the anchoring sections (5b) of the securing means (5), the first and second interfaces (6, 7) being arranged so as to form a repeating succession of patterns (8), and in that each pattern (8) has the same number of first interfaces (6) as second interfaces (7).

Description

Dispositif de jonction pour bandes transporteuses  Junction device for conveyor belts
La présente invention concerne un dispositif de jonction pour bandes transporteuses destiné à relier des extrémités d'une bande transporteuse. Dans un but de simplification le terme de bande transporteuse aura, par convention, dans la présente description, aussi bien le sens de bande transporteuse que celui de courroie. The present invention relates to a joining device for conveyor belts for connecting ends of a conveyor belt. For purposes of simplification, the term conveyor belt will, by convention, in the present description, both the conveyor belt and belt direction.
On connaît les bandes transporteuses, appelées également tapis transporteurs, utilisées pour transporter différents matériaux ou différents produits, tels que du charbon, des minerais, des produits industriels ou agricoles. Ces bandes transporteuses consistent en des bandes réalisées en un élastomère armé, ou en une matière de synthèse armée, d'une longueur et d'une largeur appropriées, dont les extrémités doivent être reliées entre elles, avant montage, ou après montage, sur des dispositifs de support et d'entraînement comportant des rouleaux de renvoi et des rouleaux fous. Souvent ces dispositifs comportent également des organes tendeurs, ayant pour but de bien tendre la bande transporteuse.  Conveyor belts, also known as conveyor belts, are known to transport different materials or products, such as coal, ores, industrial or agricultural products. These conveyor belts consist of strips made of a reinforced elastomer, or an armed synthetic material, of an appropriate length and width, the ends of which must be connected together, before assembly, or after mounting, on support and driving devices comprising return rollers and idler rollers. Often these devices also comprise tensioning members, for the purpose of tightening the conveyor belt.
Jusqu'à présent différents moyens ont été utilisés pour effectuer cette liaison des extrémités des bandes transporteuses. À l'origine, et encore aujourd'hui, on utilise la vulcanisation lorsque la bande est constituée d'un élastomère vulcanisable armé. Après un travail de préparation destiné à créer dans chaque extrémité des profils complémentaires qui s'appliquent les uns sur les autres lorsque l'on rapproche lesdites extrémités, la vulcanisation est effectuée avec apport de chaleur et de pression comme cela est bien connu. Une variante de la vulcanisation est le collage à froid.  Heretofore various means have been used to effect this connection of the ends of the conveyor belts. Originally, and still today, vulcanization is used when the web is made of a reinforced vulcanizable elastomer. After preparation work to create in each end complementary profiles that apply to each other when bringing said ends closer, the vulcanization is carried out with input of heat and pressure as is well known. A variant of vulcanization is cold bonding.
Un autre moyen de liaison connu consiste dans le fait d'utiliser des agrafes en forme générale de U, découpées dans du feuillard métallique, lesquelles agrafes comportent des plaques supérieures et des plaques inférieures reliées par des charnons, ces agrafes étant fixées en deux séries à cheval sur chacune des extrémités de bande transporteuse à relier, de telle sorte que les charnons dépassent et que ceux d'une série puissent être imbriqués entre les charnons de l'autre série, une tige de liaison et d'articulation étant ensuite passée à l'intérieur des charnons imbriqués de manière à relier ainsi les deux extrémités en formant une sorte de charnière. Les moyens connus utilisés pour fixer les agrafes sur les extrémités de bande transporteuse consistent en des moyens de fixation à tige tels que des crampons, des rivets et des vis.  Another known connection means consists in using U-shaped clips cut in metal strip, which clips comprise upper plates and lower plates connected by knuckles, these clips being fixed in two series to mounted on each of the ends of the conveyor belt to be connected, so that the knuckles protrude and that those of one series can be interwoven between the knuckles of the other series, a connecting rod and hinge being then passed to the The interior of the knuckles is nested so as to connect the two ends thus forming a kind of hinge. Known means used to secure the staples on the conveyor belt ends consist of rod attachment means such as spikes, rivets and screws.
Dans un passé plus récent on a proposé des dispositifs de jonction faisant appel à des éléments de liaison plats généralement en élastomère armé ou en matière de synthèse armée, disposés respectivement sur un côté et sur l'autre côté des extrémités de bande transporteuse et fixés sur lesdites extrémités qu'il s'agit de relier. Des exemples de tels dispositifs de jonction sont donnés dans les brevets EP-0827575- B1 et EP-1163459-B1. In the more recent past it has been proposed connecting devices using flat connection elements generally made of reinforced elastomer or armed synthetic material, respectively disposed on one side and on the other side of the conveyor ends and fixed on said ends to be connected. Examples of such joining devices are given in EP-0827575-B1 and EP-1163459-B1.
Ces dispositifs comportent une plaque supérieure et une plaque inférieure, éventuellement reliées par une partie centrale. Ces plaques inférieure et supérieure présentent un écartement adapté pour y engager l'extrémité respective d'une bande transporteuse, en la faisant venir approximativement en butée contre la partie centrale, ou bien dans le cas où le dispositif de jonction ne présente pas de partie centrale, contre une entretoise prévue à cet effet lors du montage, puis retirée ultérieurement.  These devices comprise an upper plate and a lower plate, possibly connected by a central part. These lower and upper plates have a spacing adapted to engage the respective end of a conveyor belt, by making it come approximately abutting against the central portion, or in the case where the connecting device does not have a central portion. , against a spacer provided for this purpose during assembly, then removed later.
En d'autres termes, ces dispositifs de jonction comportent deux paires d'ailes de fixation en vis-à-vis, les extrémités de la bande transporteuse étant introduites respectivement entre deux ailes d'une même paire.  In other words, these connecting devices comprise two pairs of fixing wings vis-a-vis, the ends of the conveyor belt being introduced respectively between two wings of the same pair.
La fixation des parties inférieure et supérieure formant plaque de jonction sur les extrémités de la bande transporteuse s'effectue généralement au moyen de rivets, de pointes, de crampons, de systèmes vis-écrous, ou encore par collage à froid ou par vulcanisation à plat des ailes contre les surfaces plates extérieures de la bande transporteuse engagées entre les ailes. Ces dispositifs de jonction sont réalisés en une matière souple et élastique, par exemple en caoutchouc vulcanisé, ou en une matière de synthèse telle que du polyuréthane et ils comportent généralement une armature incorporée.  The fixing of the lower and upper parts forming a connecting plate on the ends of the conveyor belt is generally carried out by means of rivets, spikes, crampons, screw-nut systems, or by cold gluing or by flat vulcanization. wings against the outer flat surfaces of the conveyor belt engaged between the wings. These joining devices are made of a flexible and elastic material, for example vulcanized rubber, or a synthetic material such as polyurethane and they generally comprise an embedded reinforcement.
Les dispositifs de jonctionnement proposés sont généralement réalisés en une matière souple et élastique dans laquelle est noyée une armature, par exemple textile, présentant une extensibilité dans le sens longitudinal.  The proposed junction devices are generally made of a flexible and elastic material in which is embedded a reinforcement, for example textile, having a stretch in the longitudinal direction.
Le sens longitudinal est par convention et pour la commodité et la clarté de l'exposé dans l'ensemble de la présente description le sens longitudinal de la ba nde transporteuse, et s'applique également au dispositif de fonctionnement considéré tel qu'il doit être monté sur la bande transporteuse. Le sens transversal est le sens perpendiculaire au sens longitudinal ainsi défini, quelles que soient les dimensions du dispositif de jonctionnement considéré isolément.  The longitudinal direction is by convention and for the convenience and clarity of the disclosure throughout the present description the longitudinal direction of the conveyor, and also applies to the operating device as it should be mounted on the conveyor belt. The transverse direction is the direction perpendicular to the longitudinal direction thus defined, whatever the dimensions of the splicing device considered in isolation.
Cette extensibilité des armatures de ce genre de dispositifs de jonctionnement dans le sens longitudinal a pour but de permettre aux dispositifs de fonctionnement montés sur les bandes transporteuses, de franchir de façon répétée, sans usure ni fatigue excessive, entraînant une détérioration rapide, les parties courbes du parcours des bandes transporteuses, à savoir, le contournement des rouleaux d'entraînement, des rouleaux de renvoi et des rouleaux tendeurs. En effet, lors de ce fonctionnement la partie supérieure des dispositifs de jonctionnement subit une force de traction tandis que leur partie inférieure (c'est-à-dire celle orientée vers la surface extérieure des rouleaux) subit une force de compression, et, ce, en raison de la différence du parcours de ces parties, ces parcours étant directement proportionnels au rayon de courbure, qui varie en raison de l'épaisseur des dispositifs de jonctionnement. Ces contraintes étant bien différentes entre les parties inférieure et supérieure, et afin d'améliorer encore la résistance à l'usure de ces dispositifs de jonctionnement, il est connu de conférer à la partie supérieure une extensibilité plus grande que celle de la partie inférieure. This extensibility of the reinforcements of this kind of joining devices in the longitudinal direction is intended to allow the operating devices mounted on the conveyor belts, to cross repeatedly, without wear or excessive fatigue, resulting in rapid deterioration, the curved parts the conveyor belt path, that is, bypassing the drive rollers, idler rollers and idler rollers. Indeed, during this operation the upper part of the junction devices undergoes a force while their lower part (that is to say the one facing the outer surface of the rollers) undergoes a compressive force, and this, because of the difference in the course of these parts, these courses being directly proportional to the radius of curvature, which varies due to the thickness of the junction devices. Since these stresses are very different between the lower and upper parts, and in order to further improve the wear resistance of these joining devices, it is known to give the upper part a greater extensibility than that of the lower part.
Dans ce type de jonction de bandes transporteuses, la partie centrale a ensuite évolué de sorte à être désolidarisée des plaques inférieure et supérieure, ceci pour laisser place à l'utilisation d'entretoises indépendantes utilisées au moment du montage contre lesquelles vient buter la première des extrémités de la bande transporteuse qui est mise en place dans la jonction, entre les plaques inférieure et supérieure, puis ces entretoises sont retirées avant mise en place de la seconde des extrémités de la bande transporteuse.  In this type of conveyor belt junction, the central part has then evolved so as to be separated from the lower and upper plates, so as to leave room for the use of independent spacers used at the time of assembly against which the first of the ends of the conveyor belt which is set up in the junction, between the lower and upper plates, then these spacers are removed before placing the second end of the conveyor belt.
En effet, les dispositifs de jonction étaient réalisés par moulage ou par injection et présentaient une structure en « H » dont les plaques inférieure et supérieure et la partie centrale étaient formées d'un seul tenant. Ceci exigeait pour leur fabrication autant de moules que d'épaisseurs de bandes transporteuses rencontrées sur le terrain, et devaient être fabriqués, de ce fait, en très petites séries, ce qui augmentait le prix de revient, à la fabrication, au stockage et à la distribution.  Indeed, the junction devices were made by molding or injection and had an "H" structure whose lower and upper plates and the central portion were formed in one piece. This required for their manufacture as many molds as the thickness of conveyor belts encountered in the field, and had to be manufactured, therefore, in very small series, which increased the cost price, the manufacture, storage and the distribution.
Cette problématique, à savoir celle de la multiplicité des moules et des produits moulés devant faire face aux épaisseurs variées de bandes transporteuses, a été résolue notamment en produisant, comme exposé ci-avant, les dispositifs de jonction en trois parties distinctes : une partie constituant des ailes supérieures gauche et droite formant une seule pièce, une partie constituant des ailes inférieures gauche et droite formant une seule pièce, et une partie intermédiaire, correspondant à la barre médiane du profil en « H », cette partie intermédiaire formant entretoise.  This problem, namely that of the multiplicity of molds and molded products having to cope with the various thicknesses of conveyor belts, has been solved, in particular by producing, as explained above, the joining devices in three distinct parts: a component part left and right upper wings forming a single piece, a portion constituting left and right lower wings forming a single piece, and an intermediate portion corresponding to the central bar of the "H" profile, this intermediate portion forming a spacer.
Dans une telle configuration, il devient possible de fabriquer les deux plaques inférieure et supérieure isolément et chacune est configurée de sorte à être adaptée aux efforts qu'elles subissent (forces de compression/traction) et aux contraintes associées.  In such a configuration, it becomes possible to manufacture the two lower and upper plates in isolation and each is configured to be adapted to the forces they undergo (compression / traction forces) and associated stresses.
Par exemple, la plaque inférieure est agencée pour subir sans dommage le passage sur des rouleaux, moteurs ou de renvoi, entraînant ou renvoyant la bande transporteuse aux extrémités de laquelle est monté le dispositif de jonction considéré, la plaque inférieure venant directement au contact de ces organes d'entrainement de la bande. For example, the lower plate is arranged to undergo without damage the passage on rollers, motors or return, causing or returning the conveyor belt at the ends of which is mounted the connecting device considered, the lower plate coming directly into contact with these drive members of the band.
La plaque supérieure est quant à elle directement au contact des différents matériaux ou différents produits transportés sur la bande transporteuse. Par ailleurs, la plaque supérieure est aussi généralement balayée par des racleurs.  The upper plate is directly in contact with the different materials or different products transported on the conveyor belt. In addition, the upper plate is also generally swept by scrapers.
L'objet de la présente invention est de proposer une solution qui corresponde à une évolution de ce type de jonctions existantes et qui permette de garantir encore une réduction des coûts pour diminuer le prix de revient, à la fabrication, au stockage et à la distribution, ceci bien entendu sans nuire en aucune manière à la qualité du produit obtenu, c'est-à-dire en conservant, voire en améliorant, la qualité et la résistance du dispositif de jonction et en garantissant l'excellence de ces moyens de fixation.  The object of the present invention is to propose a solution which corresponds to an evolution of this type of existing junctions and which makes it possible to guarantee even a reduction of costs in order to reduce the cost price, to manufacture, storage and distribution. this of course without harming in any way the quality of the product obtained, that is to say, by maintaining or improving the quality and strength of the connecting device and ensuring the excellence of these fastening means .
À cet effet, l'invention concerne une plaque de jonction pour un dispositif de jonction de bande transporteuse destiné à relier deux extrémités d'une bande transporteuse, le dispositif de jonction étant du type comportant au moins deux plaques de jonction fixées ensemble avec les extrémités de la bande transporteuse par des moyens de fixation comprenant chacun une tête et un tronçon d'ancrage, par exemple une extrémité d'ancrage opposée à la tête, la plaque de jonction étant remarquable en ce qu'elle comporte des premières interfaces pour coopérer avec les têtes des moyens de fixation et des deuxièmes interfaces pour coopérer avec les tronçons d'ancrage des moyens de fixation, les deuxièmes interfaces étant distinctes des premières interfaces et comprenant des inserts incorporés au moins en partie dans la plaque de jonction, les premières et deuxièmes interfaces étant disposées de sorte à former une succession de motifs qui se répètent, et en ce que chaque motif présente autant de première(s) interface(s) que de deuxième(s) interface(s).  To this end, the invention relates to a junction plate for a conveyor belt connection device for connecting two ends of a conveyor belt, the junction device being of the type comprising at least two junction plates fastened together with the ends. of the conveyor belt by fastening means each comprising a head and an anchoring section, for example an anchoring end opposite to the head, the connecting plate being remarkable in that it comprises first interfaces for cooperating with the heads of the fastening means and the second interfaces to cooperate with the anchoring sections of the fastening means, the second interfaces being distinct from the first interfaces and comprising inserts incorporated at least partly in the joining plate, the first and second interfaces being arranged to form a succession of repeating patterns, and that aque motif has as many first interface (s) as second interface (s).
L'invention concerne également une solution alternative, éventuellement complémentaire, à savoir une plaque de jonction pour un dispositif de jonction de bande transporteuse destiné à relier deux extrémités d'une bande transporteuse, le dispositif de jonction étant du type comportant au moins deux plaques de jonction fixées ensemble avec les extrémités de la bande transporteuse par des moyens de fixation comprenant chacun une tête et un tronçon d'ancrage muni d'un filetage, la plaque de jonction étant remarquable en ce qu'elle comporte des premières interfaces pour coopérer avec les têtes des moyens de fixation et des deuxièmes interfaces pour coopérer avec les tronçons d'ancrage des moyens de fixation, les premières et deuxièmes interfaces étant disposées de sorte à former une succession de motifs qui se répètent, et en ce que chaque motif présente autant de première(s) interface(s) que de deuxième(s) interface(s). The invention also relates to an alternative solution, possibly complementary, namely a connecting plate for a conveyor belt joining device intended to connect two ends of a conveyor belt, the joining device being of the type comprising at least two plates of junction fixed together with the ends of the conveyor belt by fastening means each comprising a head and an anchor portion provided with a thread, the junction plate being remarkable in that it comprises first interfaces to cooperate with the heads of the fastening means and the second interfaces for cooperating with the anchoring sections of the fastening means, the first and second interfaces being arranged so as to form a succession of patterns which are repeated, and in that each pattern has as many first interface (s) as second interface (s).
Une telle plaque de jonction, selon l'une ou l'autre de ces alternatives, présente notamment l'avantage de pouvoir être utilisée à la fois comme plaque de jonction supérieure et comme plaque de jonction inférieure. De cette manière, il devient possible de fabriquer un seul type de plaques de jonction et non plus deux plaques de jonctions différentes, présentant chacune, dans l'art antérieur, un même type d'interfaces de fixations.  Such a joining plate, according to one or other of these alternatives, has the particular advantage of being able to be used both as an upper joining plate and as a lower joining plate. In this way, it becomes possible to manufacture a single type of junction plates and no longer two different junction plates, each having, in the prior art, the same type of fastener interfaces.
Il est entendu par le vocable « interface », un élément ou un moyen qui est configuré pour permettre d'établir une coopération entre deux éléments.  It is understood by the term "interface", an element or a means that is configured to allow to establish a cooperation between two elements.
En outre, les plaques de jonctions sont généralement découpées dans une bande ou portion de bande continue de plusieurs plaques de jonction successives. Dans une telle configuration, il est ainsi possible de fabriquer une plaque de jonction inférieure et une plaque de jonction supérieure correspondante à partir de la même bande ou portion de bande de plaques de jonction, ceci malgré le fait que les premières et deuxièmes interfaces soient distinctes.  In addition, the junction plates are generally cut into a strip or portion of continuous strip of several successive junction plates. In such a configuration, it is thus possible to manufacture a lower junction plate and a corresponding upper junction plate from the same strip or portion of junction strip, despite the fact that the first and second interfaces are distinct. .
Par ailleurs, et contrairement aux préjugés d'un homme du métier, une configuration où chacune des plaques de jonction présente des premières et deuxième interfaces, ne nuit pas à la maintenance. En effet, dans l'art antérieur, les moyens de fixations étaient tous orientés dans une même direction, la tête accessible du côté supérieur de la bande, ceci pour en faciliter l'accès. Dans le cadre de l'invention, il s'avère que dans une position où les extrémités de la bande transporteuse ne sont pas situées au niveau des rouleaux d'entraînement, des rouleaux de renvoi ou des rouleaux tendeurs, il est possible d'avoir accès des deux côtés, inférieur et supérieur, de la bande transporteuse ce qui permet l'accès à toute opération de maintenance.  Moreover, and contrary to the prejudices of a person skilled in the art, a configuration where each of the junction plates has first and second interfaces, does not interfere with maintenance. Indeed, in the prior art, the fastening means were all oriented in the same direction, the head accessible from the upper side of the strip, this to facilitate access. In the context of the invention, it turns out that in a position where the ends of the conveyor belt are not located at the level of the drive rollers, return rollers or tension rollers, it is possible to have access on both sides, lower and upper, of the conveyor belt which allows access to any maintenance operation.
Par ailleurs, et contrairement encore aux préjugés d'un homme du métier, on pouvait s'attendre à ce que l'intégration des deuxièmes interfaces sur la plaque de jonction supérieure puisse voir son élasticité diminuée, les inserts taraudés présentant un encombrement plus important dans la plaque de jonction elle-même. Des essais ont permis de montrer que ce n'était pas le cas et que cela n'avait pas d'impact significatif sur l'extensibilité des plaques de jonction, et encore moins sur celle des armatures.  Moreover, and contrary to the prejudices of a person skilled in the art, it could be expected that the integration of the second interfaces on the upper joining plate could be reduced in its elasticity, the threaded inserts having a greater bulk in the junction plate itself. Tests have shown that this was not the case and that it did not have a significant impact on the extensibility of the junction plates, let alone on that of the reinforcements.
Dans une configuration particulière, un motif comporte un premier et un deuxième sous-motifs, le deuxième motif étant complémentaire du premier motif, et les premières et deuxièmes interfaces étant disposées de sorte à former une succession alternée d'un premier et d'un deuxième sous-motifs qui se répètent alternativement et successivement. Dans une telle configuration, une plaque de jonction est apte à venir se superposer avec une autre plaque de jonction présentant les mêmes caractéristiques afin de pouvoir s'apparier l'une avec l'autre et former, ensemble, un dispositif de jonction. In a particular configuration, a pattern comprises a first and a second sub-pattern, the second pattern being complementary to the first pattern, and the first and second interfaces being arranged so as to form an alternating succession of a first and a second sub-patterns that are repeated alternately and successively. In such a configuration, a junction plate is able to be superimposed with another junction plate having the same characteristics in order to be able to mate with each other and together form a junction device.
Dans une configuration complémentaire et/ou alternative, une plaque de jonction comporte une première et une deuxième ailes opposées, configurées pour recouvrir chacune une extrémité distincte de la bande transporteuse sur un même côté, chacune desdites ailes comportant un sous-motif défini par une disposition des premières et/ou deuxièmes interfaces, le sous-motif de l'une de cesdites ailes étant complémentaire du sous-motif de l'autres de cesdites ailes. Par le vocable « complémentaire » il est entendu que les dispositions des interfaces définissant chacun des deux sous-motifs sont symétriques par rapport à un axe médian de la plaque de jonction séparant lesdites ailes mais que, à la position d'une première interface sur une aile correspond la position d'une deuxième interface sur l'autre aile.  In a complementary and / or alternative configuration, a junction plate has first and second opposed wings, each configured to cover a distinct end of the conveyor belt on the same side, each of said wings having a sub-pattern defined by a provision first and / or second interfaces, the sub-pattern of one of said wings being complementary to the sub-pattern of the other of said wings. By the term "complementary" it is understood that the provisions of the interfaces defining each of the two sub-patterns are symmetrical with respect to a median axis of the junction plate separating said wings but that, at the position of a first interface on a wing corresponds the position of a second interface on the other wing.
De préférence, la première aile comprend uniquement des premières interfaces et la deuxième aile comportant uniquement des deuxièmes interfaces. Ceci est particulièrement avantageux étant donné que cela simplifie grandement la pose de la plaque de jonction par un opérateur puisqu'en fixant la plaque de jonction à une extrémité de la bande transporteuse les moyens de fixations présentent une orientation similaire pour une aile donnée et l'opérateur n'est donc pas obligé de changer d'orientation pour la mise en place de ces moyens de fixation sur ladite aile.  Preferably, the first wing comprises only first interfaces and the second wing having only second interfaces. This is particularly advantageous since it greatly simplifies the laying of the joining plate by an operator since by fixing the joining plate at one end of the conveyor belt the fixing means have a similar orientation for a given wing and the operator is not obliged to change orientation for the establishment of these fastening means on said wing.
De préférence, les premières et/ou les deuxièmes interfaces comprennent des inserts, les inserts étant incorporés au moins en partie dans les plaques de jonction.  Preferably, the first and / or second interfaces comprise inserts, the inserts being incorporated at least partly in the junction plates.
Dans une configuration avantageuse, les premières interfaces comportent des pièces rapportées, c'est-à-dire qu'elles ne sont pas incorporées dans la plaque de jonction, et les secondes interfaces comprenent des inserts incorporés au moins en partie dans la plaque de jonction.  In an advantageous configuration, the first interfaces comprise inserts, that is to say that they are not incorporated in the junction plate, and the second interfaces comprise inserts incorporated at least partly in the junction plate. .
Dans ce cas, les pièces rapportées sont agencées pour venir en complément et/ou en renfort d'une zone d'interface de la plaque de jonction fromant première interface, tel qu'un orifice adapté pour être traversé par le moyen de fixation.  In this case, the inserts are arranged to complement and / or reinforce an interface area of the junction plate from a first interface, such as an orifice adapted to be traversed by the fastening means.
Selon une configuration technique, les premières interfaces comportent des rondelles percées comportant une cuvette apte à loger une tête des moyens de fixation. Dans une telle configuration, les rondelles formant premières interfaces forment ainsi des pièces rapportées s'associant autour et en complément d'un orifice de la plaque de jonction adapté pour être traversé par le moyen de fixation. Alternativement, ou bien en combinaison dans le cas où des premières interfaces différentes sont intégrées ensemble à une même plaque de jonction, ces rondelles peuvent également être incorporées dans la plaque de jonction, c'est-à-dire noyées dans la matière souple et élastique comme par exemple le caoutchouc vulcanisé formant la plaque de jonction. According to a technical configuration, the first interfaces comprise pierced washers comprising a bowl adapted to house a head of the fastening means. In such a configuration, the washers forming first interfaces thus form associated parts around and in addition to an orifice of the junction plate adapted to be traversed by the fastening means. Alternatively, or in combination in the case where first interfaces The washers may be incorporated into the same junction plate together, these washers may also be incorporated in the junction plate, that is to say embedded in the flexible and elastic material such as vulcanized rubber forming the junction plate.
Avantageusement, les deuxièmes interfaces comportent une partie tubulaire cylindrique dont une surface cylindrique intérieure est apte à coopérer avec un tronçon d'ancrage des moyens de fixation.  Advantageously, the second interfaces comprise a cylindrical tubular part whose inner cylindrical surface is adapted to cooperate with an anchoring section of the fixing means.
Selon un autre aspect, l'invention concerne également un dispositif de jonction pour bande transporteuse, destiné à relier deux extrémités de la bande transporteuse, le dispositif de jonction comprenant au moins deux plaques de jonction configurées pour recouvrir chacune un côté distinct des extrémités de la bande transporteuse de sorte à ce que ladite bande transporteuse soit disposée entre les deux plaques de jonction, les plaques de jonction étant fixées ensemble par des moyens de fixation agencés pour traverser respectivement une plaque de jonction, une des extrémités de la bande transporteuse puis l'autre plaque de jonction, les moyens de fixation comprenant chacun une tête et un tronçon d'ancrage, par exemple une extrémité d'ancrage opposée à la tête, les plaques de jonction comportant des premières interfaces pour coopérer avec les têtes des moyens de fixation et des deuxièmes interfaces pour coopérer avec les tronçons d'ancrage des moyens de fixation, le dispositif de jonction étant remarquable en ce que les plaques de jonction présentent tout ou partie des caractéristiques précitées et en ce qu'elles sont agencées pour s'apparier l'une avec l'autre.  In another aspect, the invention also relates to a conveyor junction device for connecting two ends of the conveyor belt, the junction device comprising at least two junction plates configured to each cover a distinct side of the ends of the conveyor belt. conveyor belt so that said conveyor belt is disposed between the two junction plates, the junction plates being fixed together by fastening means arranged to cross respectively a junction plate, one of the ends of the conveyor belt and then the another junction plate, the fixing means each comprising a head and an anchoring section, for example an anchoring end opposite to the head, the connecting plates having first interfaces for cooperating with the heads of the fixing means and second interfaces for cooperating with the anchoring sections of the fixing means one, the junction device being remarkable in that the junction plates have all or part of the aforementioned characteristics and in that they are arranged to mate with each other.
Un tel dispositif de jonction permet une réduction des coûts pour diminuer le prix de revient, à la fabrication, au stockage et à la distribution étant donné que les plaques de jonction qui le composent sont fabriquées selon le même motif tout en étant complémentaires afin de permettre la jonction des extrémités de la bande transporteuse.  Such a connecting device allows a reduction in costs to reduce the cost, manufacturing, storage and distribution since the connecting plates that compose it are manufactured in the same pattern while being complementary to allow the junction of the ends of the conveyor belt.
Selon une configuration technique particulière, chacune des plaques de jonction comporte autant de premières interfaces que de deuxièmes interfaces.  According to a particular technical configuration, each of the junction plates comprises as many first interfaces as second interfaces.
Selon un exemple de réalisation, les plaques de jonction sont identiques. According to an exemplary embodiment, the junction plates are identical.
Selon une configuration, les motifs des deux plaques de jonction sont décalés d'un pas prédéterminé. According to one configuration, the patterns of the two junction plates are offset by a predetermined pitch.
Avantageusement, chacune des plaques de jonction comporte une première et une deuxième ailes opposées et configurées pour recouvrir chacune une extrémité distincte de la bande transporteuse d'un même côté, la première aile comprenant uniquement des premières interfaces et la deuxième aile comportant uniquement des deuxièmes interfaces. Cela permet de simplifier la mise en place du dispositif de jonction lors de sa fixation aux extrémités de la bande transporteuse étant donné que les moyens de fixation, pour une extrémité donnée de la bande transporteuse, sont alors orientés de la même façon puisque l'alignement vertical des première et deuxième interfaces détermine l'orientation du moyen de fixation correspondant. Advantageously, each of the junction plates comprises first and second opposed wings and configured to each cover a distinct end of the conveyor belt on the same side, the first wing comprising only first interfaces and the second wing comprising only second interfaces. This makes it possible to simplify the installation of the connecting device when it is attached to the ends of the conveyor belt since the fastening means, for a given end of the conveyor belt, are then oriented in the same way since the alignment vertical of the first and second interfaces determines the orientation of the corresponding fastening means.
Dans cette configuration, chacune des deux ailes de la plaque de jonction présente une même type d'interface, premières ou deuxièmes interfaces. Ceci est particulièrement avantageux en terme de fabrication de la plaque de jonction. En effet, celle-ci étant fabriquée de préférence de manière continue, il est possible de disposer dans une même zone de fabrication, d'un côté un outillage qui viendrait mettre en place les premières interfaces sur l'une des deux ailes, et, de l'autre côté un autre outillage qui viendrait mettre en place les deuxièmes interfaces sur l'une des deux ailes. Cette opération peut également être faite manuellement, par deux personnes de manière concomitante. Durant la production, la chaîne de fabrication est donc particulièrement optimisée et le temps de fabrication diminué puisque les deux opérations peuvent être effectuées de façon concomitante et non successivement.  In this configuration, each of the two wings of the junction plate has the same type of interface, first or second interfaces. This is particularly advantageous in terms of manufacture of the junction plate. Indeed, it being manufactured preferably continuously, it is possible to have in the same manufacturing area, on one side a tool that would put in place the first interfaces on one of the two wings, and, on the other side another tool that would put in place the second interfaces on one of the two wings. This operation can also be done manually, by two people concomitantly. During production, the production line is therefore particularly optimized and manufacturing time decreased since both operations can be performed concomitantly and not successively.
Selon une configuration particulière, les moyens de fixation comportent des vis présentant une tête et un tronçon d'ancrage muni d'un filetage.  According to a particular configuration, the fastening means comprise screws having a head and an anchor section provided with a thread.
Selon un autre aspect, l'invention concerne aussi un procédé de fabrication d'une plaque de jonction présentant tout ou partie des caractéristiques précitées, remarquable en ce qu'elle comprend au moins les étapes suivantes :  According to another aspect, the invention also relates to a method of manufacturing a joint plate having all or some of the aforementioned characteristics, remarkable in that it comprises at least the following steps:
fabrication d'une succession continue de plaques de jonction sous forme de bande ; et  manufacture of a continuous succession of band-shaped junction plates; and
découpe, à partir de ladite bande ainsi fabriquée, des plaques de jonctions suivants des dimensions prédéterminées.  cutting, from said strip thus manufactured, the following junction plates of predetermined dimensions.
Un tel procédé de fabrication est particulièrement avantageux en ce qu'il permet une fabrication continue de plusieurs plaques de jonction successives. Les plaques de jonction inférieure et supérieure sont alors découpées dans la même bande ou portion de bande ainsi fabriquée.  Such a manufacturing method is particularly advantageous in that it allows a continuous manufacture of several successive junction plates. The lower and upper junction plates are then cut in the same strip or strip portion thus manufactured.
D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit, donnée uniquement à titre d'exemple, en référence aux figures annexées, qui illustrent :  Other features and advantages of the invention will emerge on reading the description which follows, given solely by way of example, with reference to the appended figures, which illustrate:
figure 1, une vue en plan d'un dispositif de jonction de l'art antérieur, vu par le dessus ; figure 2, une vue en coupe longitudinale selon la coupe A-A de la figure 1 d'un dispositif de jonction, représentant en éclaté les différents éléments qui le constituent ; Figure 1, a plan view of a junction device of the prior art, seen from above; Figure 2 is a longitudinal sectional view along section AA of Figure 1 of a junction device, exploded the various elements that constitute it;
figure 3A, une vue en plan d'un dispositif de jonction selon un mode de réalisation de l'invention, vu par le dessus ;  3A, a plan view of a junction device according to an embodiment of the invention, seen from above;
figure 3B, une vue en coupe longitudinale du dispositif de jonction de la figure 3A ;  Figure 3B, a longitudinal sectional view of the connecting device of Figure 3A;
figure 4A, une vue en plan d'un dispositif de jonction selon un autre mode de réalisation de l'invention, vu par le dessus ;  4A, a plan view of a junction device according to another embodiment of the invention, seen from above;
figure 4B, une vue en coupe longitudinale du dispositif de jonction de la figure 4A ;  Figure 4B, a longitudinal sectional view of the connecting device of Figure 4A;
figure 5, une vue en perspective d'un dispositif de jonction selon un autre mode de réalisation de l'invention,  FIG. 5, a perspective view of a junction device according to another embodiment of the invention,
figure 6, une vue en coupe d'un moyen de fixation selon un mode de réalisation, figures 7A, 7B, 7c et 7d, des exemples schématiques de motifs formés par les premières et deuxièmes interfaces selon différents modes de réalisations.  FIG. 6 is a sectional view of a fastening means according to one embodiment, FIGS. 7A, 7B, 7c and 7d, schematic examples of patterns formed by the first and second interfaces according to different embodiments.
Sur l'ensemble de ces figures, des références identiques ou analogues désignent des organes ou ensembles d'organes identiques ou analogues.  In all of these figures, identical or similar references designate members or sets of identical or similar members.
La figure 1, qui est une vue en plan, par le dessus, d'un dispositif de jonction 1 selon l'art antérieur et fait apparaître une plaque de jonction 4 supérieure d'un dispositif de jonction 1.  FIG. 1, which is a plan view, from above, of a junction device 1 according to the prior art and shows an upper junction plate 4 of a junction device 1.
On remarque également des têtes 5a des vis 5 qui constituent un exemple de moyens d'assemblage des dispositifs de jonction.  There are also 5a head screws 5 which are an example of assembly means junction devices.
Les écorchés lia et 11b font apparaître deux types d'armatures de type textiles, qui sont tissées : dans l'armature lia le tissu est disposé de façon telle que ses fils de trame, ou bien ses fils de chaîne, sont orientés au moins approximativement dans le sens longitudinal du dispositif de jonction 1.  The skinned 11a and 11b show two types of textile-type reinforcements, which are woven: in the frame 11a, the fabric is arranged in such a way that its weft threads, or its warp threads, are oriented at least approximately in the longitudinal direction of the connecting device 1.
Nous rappelons que par convention le sens longitudinal X du dispositif de jonction 1 correspond, dans la présente description, au sens longitudinal X de la bande transporteuse 2, le dispositif de jonction 1 étant monté sur les extrémités 3 de la bande transporteuse 2 qu'il relie. Le sens transversal Y du dispositif de jonction 1 est, selon la même convention, le sens perpendiculaire au sens longitudinal X. Cette convention est appliquée quelles que soient les dimensions effectives du dispositif de jonction 1 dans ces deux directions.  We recall that by convention the longitudinal direction X of the junction device 1 corresponds, in the present description, to the longitudinal direction X of the conveyor belt 2, the junction device 1 being mounted on the ends 3 of the conveyor belt 2 that it connects. The transverse direction Y of the junction device 1 is, according to the same convention, the direction perpendicular to the longitudinal direction X. This convention is applied regardless of the effective dimensions of the junction device 1 in these two directions.
Le dispositif de jonction de la figure 1 est composé de trois éléments : un élément formant plaque de jonction 4 supérieure, un élément intermédiaire 9 situé sous la partie médiane de la plaque de jonction 4 qui n'est pas visible sur la figure 1 autrement que par les deux lignes de pointillés situées de part et d'autre des deux vis 5 médianes délimitant sous la plaque de jonction 4 supérieure les bords des extrémités de la bande transporteuse 2 à relier, et un élément formant plaque de jonction 4 inférieure, non visible sur la figure 1, lequel est situé sous l'élément intermédiaire 9 et sous l'élément formant plaque de jonction 4 supérieure. The junction device of FIG. 1 is composed of three elements: an upper junction plate element 4, an intermediate element 9 located under the middle part of the junction plate 4 which is not visible in Figure 1 other than by the two dashed lines located on either side of the two median screws 5 delimiting under the upper junction plate 4 the edges ends of the conveyor belt 2 to be connected, and a lower junction plate member 4, not visible in Figure 1, which is located under the intermediate member 9 and under the upper junction plate member 4.
La coupe éclatée de la figure 2 fait apparaître successivement : des vis d'assemblage 51 formant moyens de fixation 5,  The exploded section of FIG. 2 shows successively: assembly screws 51 forming fixing means 5,
la plaque de jonction 4a supérieure,  the upper junction plate 4a,
des inserts 6 incorporés dans la plaque de jonction 4 supérieure,  inserts 6 incorporated in the upper junction plate 4,
l'élément intermédiaire 9 comportant une douille traversante incorporée, disposée verticalement suivant un axe vertical Z,  the intermediate element 9 comprising an incorporated through bushing disposed vertically along a vertical axis Z,
la plaque inférieure 3 comportant des inserts taraudés 7.  the lower plate 3 having threaded inserts 7.
Les inserts 6 agencés pour recevoir les têtes 5a de vis 51 se présentent de façon générale sous forme de rondelles 61 percées comportant une cuvette apte à loger les têtes 5a des vis 5 destinées à passer dans le trou des rondelles percées. L'insert central 6' se présente de façon générale comme les inserts 6 mais il comporte une partie tubulaire centrale, dont la surface cylindrique intérieure est apte à laisser passage, avec un très faible jeu, à la vis 5 correspondante, cette vis ne se vissant donc pas dans l'insert 6'. La partie tubulaire centrale de l'insert 6' dépasse à partir de la surface inférieure de la plaque de jonction 4 supérieure.  The inserts 6 arranged to receive the heads 5a of screws 51 are generally in the form of 61 drilled washers having a bowl adapted to house the heads 5a of the screws 5 intended to pass through the hole of the drilled washers. The central insert 6 'is generally like the inserts 6 but has a central tubular portion, whose inner cylindrical surface is able to pass, with a very small clearance, to the corresponding screw 5, this screw does not thus not screwing into the insert 6 '. The central tubular portion of the insert 6 'protrudes from the lower surface of the upper joining plate 4.
Les inserts 7 comportent chacun une partie tubulaire centrale dont la surface cylindrique intérieure est taraudée et est apte à recevoir une vis 51 vissée dans le taraudage, lesdites parties tubulaires centrales dépassant à partir de la surface supérieure de la plaque de jonction 4 inférieure du dispositif de jonction 1. Les inserts médians T de la plaque inférieure se présentent comme les inserts 7.  The inserts 7 each comprise a central tubular portion whose internal cylindrical surface is threaded and is adapted to receive a screw 51 screwed into the internal thread, said central tubular parts protruding from the upper surface of the lower junction plate 4 of the device. junction 1. The medial inserts T of the lower plate are like the inserts 7.
Les figures 3A et 3B illustrent respectivement une vue en plan d'un dispositif de jonction 1 selon un mode de réalisation de l'invention, vu par le dessus et une vue en coupe longitudinale de ce dispositif de jonction 1.  FIGS. 3A and 3B respectively show a plan view of a junction device 1 according to one embodiment of the invention, seen from above and a longitudinal sectional view of this junction device 1.
Le dispositif de jonction 1 comporte deux plaques de jonction 4 configurées pour être fixées ensemble avec des extrémités 3 de la bande transporteuse 2 par des moyens de fixation 5 comprenant chacun une tête 5a et un tronçon d'ancrage 5b formant une extrémité d'ancrage opposée à la tête 5a (voir la figure 6).  The junction device 1 comprises two junction plates 4 configured to be fastened together with the ends 3 of the conveyor belt 2 by fastening means 5 each comprising a head 5a and an anchoring section 5b forming an opposite anchoring end. at the head 5a (see Figure 6).
Chacune des plaques de jonction 4 de ce dispositif de jonction comporte des premières interfaces 6 pour coopérer avec les têtes 5a des moyens de fixation 5 et des deuxièmes interfaces 7 pour coopérer avec les tronçons d'ancrage 5b des moyens de fixation 5. Each of the junction plates 4 of this junction device comprises first interfaces 6 for cooperating with the heads 5a of the fixing means 5 and second interfaces 7 to cooperate with the anchoring sections 5b of the fixing means 5.
Les premières et deuxièmes interfaces 6, 7 distinctes sont disposées sur chacune des plaques de jonction 4 de sorte à former une succession de motifs 8 qui se répètent, et en ce que chaque motif 8 présente autant de premières interfaces 6 que de deuxièmes interfaces 7.  The first and second distinct interfaces 6, 7 are arranged on each of the junction plates 4 so as to form a succession of patterns 8 which are repeated, and in that each pattern 8 has as many first interfaces 6 as second interfaces 7.
Les plaques de jonction 4 du dispositif de jonction 1 sont agencées pour s'apparier l'une avec l'autre, c'est-à-dire que, dans la position assemblée de jonction dudit dispositif de jonction 1 :  The junction plates 4 of the connecting device 1 are arranged to mate with each other, that is to say that, in the assembled position of joining of said junction device 1:
chaque première interface 6 d'une plaque de jonction 4 est en regard, verticalement, avec une deuxième interface 7 de l'autre plaque du jonction 4 dudit dispositif de jonction 1 ; et inversement :  each first interface 6 of a junction plate 4 is facing, vertically, with a second interface 7 of the other junction plate 4 of said junction device 1; and conversely:
chaque deuxième interface 7 d'une plaque de jonction est en regard, verticalement, avec une première interface 6 de l'autre plaque du jonction 4 dudit dispositif de jonction 1,  each second interface 7 of a junction plate is facing, vertically, with a first interface 6 of the other junction plate 4 of said junction device 1,
de sorte à pouvoir être fixés ensemble par un des moyens de fixation 5 traversant les plaques de jonction et l'une des extrémité de la bande transporteuse 2, chaque moyen de fixation 5 coopérant avec un couple de première et deuxième interfaces en vis à vis, c'est-à-dire alignées verticalement afin d'apparier les deux plaques de jonction 4. so as to be fastened together by one of the fixing means 5 passing through the junction plates and one end of the conveyor belt 2, each fastening means 5 cooperating with a pair of first and second interfaces facing each other, that is, aligned vertically to match the two joining plates 4.
Le motif 8 est déterminé en fonction de la position des interfaces 6, 7. Un dispositif de jonction 1 muni de telles plaques de jonction 4 présente notamment l'avantage de pouvoir présenter des plaques de jonctions 4 pouvant être utilisées indifféremment comment plaque de jonction 4 supérieure ou comme plaque de jonction 4 inférieure.  The pattern 8 is determined according to the position of the interfaces 6, 7. A junction device 1 provided with such junction plates 4 has the particular advantage of being able to present junction plates 4 that can be used indifferently as junction plate 4 upper or as a lower junction plate 4.
En effet, les plaques de jonction sont généralement découpées dans une bande ou portion de bande continue de plusieurs plaques de jonction successives s'étendant selon une direction principale de cette bande ou portion de bande, cette direction principale correspondant au sens transversal Y de la bande transporteuse. Les plaques de jonction 4 sont obtenues après découpe, à partir de ladite bande ou portion de bande ainsi fabriquée, des plaques de jonctions 4 suivants des dimensions prédéterminées. La dimension de la découpe d'une longueur prédéterminée est choisie selon la direction principale d'allongement de la bande ou portion de bande de sorte à correspondre à la largeur de la bande transporteuse 1 dont les extrémités doivent être reliées et jointes, chacune des plaques de jonction 4 s'étendant sur toute la largeur de la bande transporteuse 2. Grâce à la succession de motifs 8 qui se répètent le long de la plaque de jonction 4 suivant sa direction principale d'allongement, c'est-à-dire suivant l'axe transversal Y de la bande transporteuse 2, et au fait que chaque motif 8 présente autant de premières interfaces 6 que de deuxièmes interfaces 7, il est alors possible de former des plaques de jonction 4 inférieure et supérieure à partir de la même bande ou portion de bande alors fabriquée. Indeed, the junction plates are generally cut in a strip or continuous strip portion of several successive junction plates extending in a main direction of this strip or strip portion, this main direction corresponding to the transverse direction Y of the strip conveyor. The junction plates 4 are obtained after cutting, from said strip or band portion thus manufactured, junction plates 4 following predetermined dimensions. The size of the cutout of a predetermined length is chosen according to the main direction of elongation of the strip or portion of strip so as to correspond to the width of the conveyor belt 1 whose ends must be connected and joined, each of the plates junction 4 extending over the entire width of the conveyor belt 2. With the succession of patterns 8 which are repeated along the junction plate 4 along its main direction of elongation, that is to say along the transverse axis Y of the conveyor belt 2, and the fact that each pattern 8 has as many first interfaces 6 as second interfaces 7, it is then possible to form lower and upper junction plates 4 from the same band or band portion then manufactured.
De cette manière, une telle solution offre une diminution du prix de revient, à la fabrication, au stockage et à la distribution, ceci sans nuire en aucune manière à la qualité du produit obtenu.  In this way, such a solution offers a reduction in cost, manufacturing, storage and distribution, this without in any way affect the quality of the product obtained.
Par ailleurs, il résulte de l'application d'une telle solution que les extensibilités des armatures intégrées dans les plaques de jonctions sont identiques, qu'il s'agisse de la plaque de jonction inférieure ou supérieure, puisqu'elles sont formées à partir de la même bande ou portion de bande fabriquée.  Moreover, it follows from the application of such a solution that the extensibilities of the reinforcements integrated in the junction plates are identical, whether it is the lower or upper junction plate, since they are formed from of the same band or portion of band manufactured.
Avantageusement, l'armature (généralement de type textile) est configurée de sorte à présenter une extensibilité comprise entre 10% et 25%, de préférence entre 15% et 20%. On entend par le caractère extensible, la capacité d'allongement de l'armature, c'est-à-dire qu'une extensibilité comprise entre 10 et 25% signifie qu'elle est configurée pour résister à un allongement d'au moins 10% et de maximum 25%, ceci sans rupture ni endommagement.  Advantageously, the reinforcement (generally of textile type) is configured to have an extensibility of between 10% and 25%, preferably between 15% and 20%. Stretchability is understood to mean the elongation capacity of the armature, that is to say that an extensibility of between 10 and 25% means that it is configured to withstand an elongation of at least 10 % and up to 25%, this without breakage or damage.
Cette extensibilité de l'armature, c'est-à-dire cet allongement élastique longitudinal, détermine également l'extensibilité de la plaque de jonction elle-même étant donné que l'armature présente une extensibilité plus faible que celle de la matière souple et élastique dans laquelle elle est noyée (caoutchouc vulcanisé, matière de synthèse telle que du polyuréthane, etc.). Une telle extensibilité dans le sens longitudinal assure un bon compromis de résistance aux contraintes subies à la fois par la plaque de jonction inférieure et par la plaque de jonction supérieure.  This extensibility of the reinforcement, ie this longitudinal elastic elongation, also determines the extensibility of the joining plate itself since the reinforcement has a lower extensibility than that of the flexible material and elastic in which it is embedded (vulcanized rubber, synthetic material such as polyurethane, etc.). Such extensibility in the longitudinal direction provides a good compromise of resistance to the stresses experienced by both the lower joint plate and the upper joint plate.
Dans ce mode de réalisation (voir les figures 3A et 3B), les premières interfaces 6 comprennent des rondelles 61 formant pièces rapportées, lesdites rondelles étant maintenues fixement contre la plaque de jonction 4 par la pression exercée par la tête 5a du moyen de fixation 5 associée sur ladite rondelle 61. Cette pression entraîne une déformation élastique du matériau constituant la plaque de jonction 4 de sorte que la rondelle 61 vient se loger dans un renfoncement de ladite plaque de jonction afin que la rondelle 61 ainsi que la tête 5a du moyen de fixation soient toutes les deux affleurantes, en position fixée du dispositif de jonction, avec la surface associée de la plaque de jonction 4. Ce renfoncement ici créé par simple déformation élastique peut également être délimité lors de la fabrication de la plaque de jonction 4 par une cavité délimitée au préalable dans ladite plaque de jonction 4 autour de l'orifice prévu pour être traversé par le moyen de fixation 5, cette cavité étant agencée pour recevoir et accueillir la rondelle 61, ceci pour chacune des premières interfaces 6. In this embodiment (see FIGS. 3A and 3B), the first interfaces 6 comprise washers 61 forming inserts, said washers being held firmly against the connecting plate 4 by the pressure exerted by the head 5a of the fastening means 5. associated with said washer 61. This pressure causes an elastic deformation of the material constituting the connecting plate 4 so that the washer 61 is housed in a recess of said connecting plate so that the washer 61 and the head 5a of the connecting means. both are flush, in the fixed position of the connecting device, with the associated surface of the junction plate 4. This recess here created by simple elastic deformation can also be defined during the manufacture of the plate junction 4 by a cavity delimited beforehand in said junction plate 4 around the orifice intended to be traversed by the fixing means 5, this cavity being arranged to receive and receive the washer 61, this for each of the first interfaces 6 .
Par ailleurs, dans ce mode de réalisation les deuxièmes interfaces 7 comprennent des inserts 70, les inserts 70 des deuxièmes interfaces 7 étant incorporés dans la plaque de jonction 4 correspondante, et en particulier noyés dans le matériau constituant la plaque de jonction 4, en étant toutefois saillants par rapport à la plaque de jonction vers l'intérieur du dispositif de jonction 1 (c'est-à-dire vers le côté où est situé la bande de jonction en position assemblée). Cette saillie de l'insert 70 est également de préférence noyée dans le matériau constituant la plaque de jonction 4.  Furthermore, in this embodiment the second interfaces 7 comprise inserts 70, the inserts 70 of the second interfaces 7 being incorporated in the corresponding junction plate 4, and in particular embedded in the material constituting the junction plate 4, being however, protruding from the inward junction plate of the joining device 1 (i.e. towards the side where the joining strip is located in the assembled position). This projection of the insert 70 is also preferably embedded in the material constituting the connecting plate 4.
De façon plus détaillée :  In more detail:
les premières interfaces 6 comportent des rondelles 61 percées comportant une cuvette 62 apte à loger une tête 5a des moyens de fixation 5 ; et  the first interfaces 6 comprise washers 61 pierced with a bowl 62 adapted to house a head 5a fastening means 5; and
les deuxièmes interfaces 7 comportent une partie tubulaire 71 cylindrique dont une surface cylindrique intérieure 72 est apte à coopérer avec un tronçon d'ancrage 5b des moyens de fixation 5.  the second interfaces 7 comprise a cylindrical tubular portion 71 whose inner cylindrical surface 72 is adapted to cooperate with an anchoring section 5b of the fixing means 5.
Par ailleurs, dans ce mode de réalisation, les deux plaques de jonctions sont identiques et chacune desdites plaques de jonction 4 comporte autant de premières interfaces 6 que de deuxièmes interfaces 7.  Moreover, in this embodiment, the two junction plates are identical and each of said junction plates 4 has as many first interfaces 6 as second interfaces 7.
Plus précisément, dans ce mode de réalisation illustré sur les figures 3A et 3B, chacune des plaques de jonction 4 comporte une première et une deuxième ailes 41, 42 opposées longitudinalement, configurées pour recouvrir chacune une extrémité différente de la bande transporteuse 2 sur un même côté puisqu'une plaque de jonction 4 est disposée sur un même côté : l'une des ailes est configurée pour recouvrir un côté 3a de l'une des extrémités de la bande transporteuse 2 et l'autre des ailes est configurée pour recouvrir le même côté 3a de l'autre extrémité 3 de la bande transporteuse 2 à relier.  More precisely, in this embodiment illustrated in FIGS. 3A and 3B, each of the junction plates 4 comprises first and second longitudinally opposed wings 41, 42, each configured to cover a different end of the conveyor belt 2 on the same side since a junction plate 4 is disposed on the same side: one of the wings is configured to cover a side 3a of one end of the conveyor belt 2 and the other of the wings is configured to cover the same side 3a of the other end 3 of the conveyor belt 2 to be connected.
Chacune desdites ailes 41, 42 comporte un sous-motif 8a, 8b défini par une disposition géométrique des premières et/ou deuxièmes interfaces 6, 7, le sous-motif 8a de l'une 41 de cesdites ailes étant complémentaire du sous-motif 8b de l'autre 42 de cesdites ailes.  Each of said wings 41, 42 comprises a sub-pattern 8a, 8b defined by a geometric arrangement of the first and / or second interfaces 6, 7, the sub-pattern 8a of one of said 41 wings being complementary to the sub-pattern 8b on the other 42 of said wings.
Par le vocable « complémentaire » il est entendu que les dispositions des interfaces 6, 7 définissant chacun des deux sous-motifs 8a, 8b sont symétriques par rapport à un axe médian D' de la plaque de jonction 4 (voir figure 3A) séparant lesdites ailes 41, 42 mais que, à la position d'une première interface 6 sur une aile 41, correspond la position d'une deuxième interface 7 sur l'autre aile 42, et inversement. By the term "complementary" it is understood that the arrangements of the interfaces 6, 7 defining each of the two sub-patterns 8a, 8b are symmetrical with respect to a median axis D 'of the junction plate 4 (see FIG. 3A) separating said wings 41, 42 but that, at the position of a first interface 6 on a wing 41, corresponds to the position of a second interface 7 on the other wing 42, and vice versa.
Le mode de réalisation illustré sur les figures 3A et 3B est un exemple simple pour en permettre la bonne compréhension, chaque aile 41, 42 comportant une seule rangée d'interfaces :  The embodiment illustrated in FIGS. 3A and 3B is a simple example to allow a good understanding of it, each wing 41, 42 comprising a single row of interfaces:
l'une 41 des ailes présente une rangée de premières interfaces 6 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, une première interface 6 formant à elle seule un sous-motif 8a ;  one of the wings has a row of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, a first interface 6 forming alone a subpattern 8a;
l'autre 42 des ailes présente une rangée de deuxièmes interfaces 7 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, une deuxième interface 7 formant à elle seule un sous-motif 8b.  the other 42 wings has a row of second interfaces 7 extending along the main direction of elongation of the connecting plate 4, namely in the transverse direction Y of the junction device 1, a second interface 7 forming alone a subpattern 8b.
Un motif 8 dans ce mode de réalisation est formé par les sous-motifs 8a et 8b alignés suivant le sens longitudinal X. Ces deux sous-motifs sont complémentaires et une deuxième plaque de jonction 4, identique à la première et présentant le même motif 8, peut lui être superposée afin de s'apparier l'une avec l'autre.  A pattern 8 in this embodiment is formed by the sub-patterns 8a and 8b aligned in the longitudinal direction X. These two sub-patterns are complementary and a second junction plate 4, identical to the first and having the same pattern 8 , can be superimposed on it to pair with each other.
Dans ce mode de réalisation, il suffit pour cela que la plaque de jonction 4 supérieure soit orientée dans le sens opposé à celui de la plaque de jonction 4 inférieure de sorte que l'aile 41 de l'une des plaques de jonction 4 soit en regard avec l'autre aile 42 de l'autre plaque de jonction 4.  In this embodiment, it suffices for the upper junction plate 4 to be oriented in the opposite direction to that of the lower junction plate 4 so that the flange 41 of one of the junction plates 4 is look with the other wing 42 of the other junction plate 4.
En d'autres termes, dans ce mode de réalisation, il existe une symétrie centrale entre les deux plaques de jonction 4 du dispositif de jonction 1 par rapport à un axe longitudinal central D (voir figure 3B), ceci en position assemblée de jonction.  In other words, in this embodiment, there is a central symmetry between the two junction plates 4 of the junction device 1 with respect to a central longitudinal axis D (see FIG. 3B), in the assembled junction position.
Dans une variante particulière, illustrée par exemple sur la figure 7A, chacune des rangées d'interfaces peut être composée d'une succession de première et deuxième interface 6, 7 alternées suivant le sens transversal Y du dispositif de jonction 1, des interfaces identiques étant alignées suivant le sens longitudinal X du dispositif de jonction 1, un motif 8 comporte alors :  In a particular variant, illustrated for example in FIG. 7A, each of the rows of interfaces may be composed of a succession of first and second interfaces 6, 7 alternating along the transverse direction Y of the junction device 1, identical interfaces being aligned along the longitudinal direction X of the junction device 1, a pattern 8 then comprises:
un premier sous-motif 8a formé par une portion de rangée présentant une première puis une deuxième interface 6, 7, et  a first sub-pattern 8a formed by a row portion having a first and a second interface 6, 7, and
un deuxième sous-motif 8b, formé par une portion de rangée présentant une respectivement une première puis une deuxième interface 6, 7,  a second sub-pattern 8b, formed by a row portion having respectively a first and a second interface 6, 7,
le deuxième motif 8b étant ici symétrique du premier motif 8a par rapport à un axe médian D' de la plaque de jonction 4 (voir figure 7A), et les premières et deuxièmes interfaces 6, 7 étant disposées de sorte à former une succession alternée d'un premier et d'un deuxième sous-motifs 8a, 8b qui se répètent alternativement et successivement. the second pattern 8b here being symmetrical with the first pattern 8a with respect to a median axis D 'of the joining plate 4 (see FIG. 7A), and the first and second interfaces 6, 7 being arranged so as to form an alternating succession of 'a first and a second sub-pattern 8a, 8b which are repeated alternately and successively.
Dans cette configuration, une plaque de jonction 4 est apte à venir se superposer avec une autre plaque de jonction présentant les mêmes caractéristiques afin de former, ensemble, un dispositif de jonction 1.  In this configuration, a junction plate 4 is able to be superimposed with another junction plate having the same characteristics in order to form, together, a junction device 1.
Dans ce cas les motifs 8 des deux plaques de jonction 4 du dispositif de jonction sont décalés d'un pas p prédéterminé (voir figure 7A) afin d'être complémentaires. Dans cet exemple, un pas correspont à un demi-motif suivant le sens transversal Y du dispositif de jonction 1 pour que chaque première interface d'une plaque de jonction 4 soit disposée verticalement au droit d'une deuxième interface de l'autre plaque de jonction du dispositif de jonctionnement 1 correspondant.  In this case the patterns 8 of the two junction plates 4 of the junction device are shifted by a predetermined pitch p (see Figure 7A) to be complementary. In this example, a step corresponds to a half-pattern in the transverse direction Y of the junction device 1 so that each first interface of a junction plate 4 is arranged vertically to the right of a second interface of the other plate. junction of the junction device 1 corresponding.
Les moyens de fixation 5 ne sont pas illustrés sur les figures 3A et 3B : cesdits moyens de fixations 5 comportent typiquement des vis 51 présentant une tête 5a et un tronçon d'ancrage 5b muni d'un filetage 52. Ils sont illutrés en détail sur la figure 6.  The fastening means 5 are not illustrated in FIGS. 3A and 3B: these fastening means 5 typically comprise screws 51 having a head 5a and an anchoring section 5b provided with a thread 52. They are illutrated in detail on Figure 6.
Les figures 4A et 4B illustrent respectivement une vue en plan d'un dispositif de jonction 1 selon un mode de réalisation de l'invention, vu par le dessus et une vue en coupe longitudinale de ce dispositif de jonction 1.  FIGS. 4A and 4B respectively show a plan view of a junction device 1 according to one embodiment of the invention, seen from above and a longitudinal sectional view of this junction device 1.
Ce mode de réalisation diffère du premier mode de réalisation illustré sur les figures 3A et 3B essentiellement en ce que chacune des ailes 41, 42 comporte deux rangées d'interfaces.  This embodiment differs from the first embodiment illustrated in FIGS. 3A and 3B essentially in that each of the wings 41, 42 comprises two rows of interfaces.
Plus précisément, chaque aile 41, 42 d'une plaque de jonction 4 comporte deux rangées d'interfaces :  More precisely, each wing 41, 42 of a junction plate 4 comprises two rows of interfaces:
l'une 41 des ailes présente deux rangées sensiblement parallèles de premières interfaces 6 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, deux premières interfaces 6 voisines longitudinalement formant ensemble un sous-motif 8a ;  one of the wings has two substantially parallel rows of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, two first interfaces 6 neighbors longitudinally together forming a sub-pattern 8a;
l'autre 42 des ailes présente deux rangées sensiblement parallèles de deuxièmes interfaces 7 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, deux deuxièmes interfaces 7 voisines longitudinalement formant ensemble un sous-motif 8b.  the other 42 wings has two substantially parallel rows of second interfaces 7 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, two second interfaces 7 neighbors longitudinally together forming a sub-pattern 8b.
Les deux rangées de chacune des ailes sont disposées en quinconce de sorte que les motifs 8 ne sont pas nécessairement formés par une portion rectangulaire de la plaque de jonction 4, comme sur les figures 3A et 3B. La figure 5 illustre une vue en perspective d'un dispositif de jonction 1 selon un autre mode de réalisation de l'invention. The two rows of each of the wings are staggered so that the patterns 8 are not necessarily formed by a rectangular portion of the joining plate 4, as in Figures 3A and 3B. Figure 5 illustrates a perspective view of a junction device 1 according to another embodiment of the invention.
Ce mode de réalisation diffère du premier mode de réalisation illustré sur les figures 3A et 3B essentiellement en ce que chacune des ailes comporte trois rangées d'interfaces.  This embodiment differs from the first embodiment illustrated in FIGS. 3A and 3B essentially in that each of the wings comprises three rows of interfaces.
Plus précisément, chaque aile 41, 42 d'une plaque de jonction 4 comporte trois rangées d'interfaces :  More precisely, each wing 41, 42 of a junction plate 4 comprises three rows of interfaces:
l'une 41 des ailes présente trois rangées de premières interfaces 6 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, trois premières interfaces 6 voisines longitudinalement et sensiblement alignées formant ensemble un sous-motif 8a ;  one of the wings 41 has three rows of first interfaces 6 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, three neighboring first interfaces 6 longitudinally and substantially aligned together forming a sub-pattern 8a;
l'autre 42 des ailes présente, trois rangées de deuxièmes interfaces 7 s'étendant le long de la direction principale d'allongement de la plaque de jonction 4, à savoir suivant le sens transversal Y du dispositif de jonction 1, trois deuxièmes interfaces 7 voisines longitudinalement et sensiblement alignées formant ensemble un sous-motif 8b.  the other 42 wings present, three rows of second interfaces 7 extending along the main direction of elongation of the junction plate 4, namely in the transverse direction Y of the junction device 1, three second interfaces 7 longitudinally adjacent and substantially aligned together forming a sub-pattern 8b.
Les trois rangées de chacune des ailes sont disposées en quinconce, ceci pour répartir de façon homogène les efforts transmis par les moyens de fixation aux plaques de jonctions 4 en position de jonction.  The three rows of each of the wings are arranged in staggered rows, in order to evenly distribute the forces transmitted by the fastening means to the junction plates 4 in the junction position.
La figure 6 est une coupe selon un plan vertical d'un exemple de moyen de fixation 5 selon la présente demande d'invention comprenant une vis 51 formant un ensemble vissé par les moyens de fixations 5 comprenant la plaque de jonction 4 supérieure, une extrémité 3 de bande transporteuse 2 et la plaque de jonction 4 inférieure.  FIG. 6 is a section along a vertical plane of an exemplary fastening means 5 according to the present invention, comprising a screw 51 forming an assembly screwed by the fixing means 5 comprising the upper joining plate 4, one end 3 of the conveyor belt 2 and the lower junction plate 4.
La première interface 6 agencée pour recevoir les têtes 5a de vis 51 présente une rondelle 61 percées par un orifice et comportant une cuvette autour de cet orifice apte à loger les têtes 5a des vis 5 destinées à passer dans ledit orifice des rondelles 61 percées.  The first interface 6 arranged to receive the heads 5a of screws 51 has a washer 61 pierced by an orifice and having a bowl around this orifice adapted to house the heads 5a of the screws 5 intended to pass into said hole washers 61 drilled.
La deuxième interface 7 comporte un insert 70 comportant une partie tubulaire 71 dont une surface cylindrique intérieure est taraudée et est apte à recevoir un filetage fût de vis 51 formant le tronçon d'ancrage 5b de la vis 51, ceci pour y être vissée. La partie tubulaire 71 de l'insert 70 fait saillie par rapport à la surface intérieure de la plaque de jonction 4 inférieure du dispositif de jonction 1.  The second interface 7 comprises an insert 70 having a tubular portion 71 whose inner cylindrical surface is threaded and is adapted to receive a thread screw thread 51 forming the anchoring section 5b of the screw 51, this to be screwed. The tubular portion 71 of the insert 70 protrudes from the inner surface of the lower junction plate 4 of the joining device 1.
Les figures 7A, 7B, 7C et 7D illustrent des exemples schématiques de motifs formés par les premières et deuxièmes interfaces 6, 7 selon différents modes de réalisations et dont le motif est configuré pour qu'une succesion de tels motifs sur une plaque de jonction 4 puisse s'apparier avec une succession de ce même motifs d'une autre plaque de jonction 4 qui serait disposée en regard de la première. FIGS. 7A, 7B, 7C and 7D illustrate schematic examples of patterns formed by the first and second interfaces 6, 7 according to different modes of embodiments and whose pattern is configured so that a succesion of such patterns on a junction plate 4 can match with a succession of the same pattern of another junction plate 4 which would be arranged opposite the first.
On notera que sur ces figures 7A à 7D, les premières et deuxièmes interfaces 6, 7 sont schématisés par les chiffres 1 et 2 entourés, respectivement, ceci pour en faciliter la compréhension.  Note that in these figures 7A to 7D, the first and second interfaces 6, 7 are schematized by the numbers 1 and 2 surrounded, respectively, to facilitate understanding.
On notera également qu'entre les deux ailes, le long de l'axe médian, une rangée de première et deuxième interfaces 6, 7 peut être interposée, comme cela est illustré plus en détail dans l'exemple de la figure 7D.  Note also that between the two wings, along the central axis, a row of first and second interfaces 6, 7 can be interposed, as is illustrated in more detail in the example of Figure 7D.
On notera toutefois que lorsque l'axe médian est libre d'interfaces, c'est- à-dire lorsqu'il ne présente pas d'interface dans cette zone, cela définit une zone médiane sans interface entre les deux ailes ce qui améliore l'élasticité du dispositif de jonction à cet endroit et améliore sa tenue mécanique. En effet, une rangée d'interfaces le long de l'axe médian pourrait favoriser dans une moindre mesure une amorce de rupture.  Note however that when the median axis is free of interfaces, that is to say when it has no interface in this area, it defines a median zone without interface between the two wings which improves the elasticity of the junction device at this location and improves its mechanical strength. Indeed, a row of interfaces along the median axis could favor to a lesser extent a beginning of rupture.
Dans une telle configuration, une plaque de jonction 4 est apte à venir se superposer avec une autre plaque de jonction présentant les mêmes caractéristiques afin de former, ensemble, un dispositif de jonction 1. Dans ce mode de réalisation, il suffit pour cela que la plaque de jonction 4 supérieure soit orientée dans le sens opposé à celui de la plaque de jonction inférieure de sorte que l'aile 41 de l'une des plaques de jonction 4 soit en regard avec l'autre aile 42 de l'autre plaque de jonction 4 mais aussi que les deux plaques de jonction 4 du dispositif de jonction soient décalée d'un pas p prédéterminé afin d'être complémentaires. Dans cet exemple, un pas correspont à un demi-motif suivant le sens transversal Y du dispositif de jonction 1 pour que chaque première interface 6 d'une plaque de jonction 4 soit disposée verticalement au droit d'une deuxième interface 7 de l'autre plaque de jonction 4 du dispositif de jonctionnement 1 correspondant.  In such a configuration, a junction plate 4 is able to be superimposed with another junction plate having the same characteristics in order to form, together, a junction device 1. In this embodiment, it suffices for this purpose that the upper junction plate 4 is oriented in the opposite direction to that of the lower junction plate so that the flange 41 of one of the junction plates 4 is facing the other flange 42 of the other plate of junction 4 but also that the two junction plates 4 of the junction device are shifted by a predetermined pitch p to be complementary. In this example, a step corresponds to a half-pattern in the transverse direction Y of the junction device 1 so that each first interface 6 of a junction plate 4 is arranged vertically to the right of a second interface 7 of the other junction plate 4 of the junction device 1 corresponding.
Par ailleurs, la figure 7B illustre un exemple de réalisation qui diffère sensiblement de celui de la figure 7A en ce que le deuxième motif 8b est ici complémentaire et non plus symétrique du premier motif 8a par rapport à l'axe médian D' de la plaque de jonction 4.  Moreover, FIG. 7B illustrates an exemplary embodiment which differs substantially from that of FIG. 7A in that the second pattern 8b here is complementary and no longer symmetrical with the first pattern 8a with respect to the median axis D 'of the plate junction 4.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de réalisation de l'invention sans pour autant sortir du cadre de l'invention.  The invention is described in the foregoing by way of example. It is understood that the skilled person is able to achieve different embodiments of the invention without departing from the scope of the invention.
Par exemple, compte tenu des distances pour transporter différents matériaux ou différents produits selon les usages dans des carrières ou autres lieux d'utilisation, un même tapis transporteur ou convoyeur peut être formé par la réunion ou jonction de plusieurs bandes transporteuses reliées ensemble par un dispositif de jonction tel que décrit ci-avant. For example, given distances to transport different materials or different products according to the uses in quarries or other places use, the same conveyor belt or conveyor can be formed by the meeting or joining of several conveyor belts connected together by a junction device as described above.
Par ailleurs, il est entendu que d'autres moyens de fixations que les vis peuvent être utilisés tout en assurant la même fonction.  Furthermore, it is understood that other fastening means that the screws can be used while providing the same function.
Le nombre de rangées d'interfaces peut également varier en fonction de l'usage souhaité.  The number of rows of interfaces may also vary depending on the desired use.
Enfin, il est bien entendu que les motifs peuvent varier. De manière générale les plaques de jonction 4 sont obtenues à partie d'un même motif, quelqu'il soit, et configurés pour que lesdites plaques de jonction soient aptes à s'apparier l'une avec l'autre.  Finally, it is understood that the patterns may vary. In general, the junction plates 4 are obtained from the same pattern, whatever it may be, and configured so that said junction plates are able to mate with each other.

Claims

REVENDICATIONS
1. Plaque de jonction (4) pour un dispositif de jonction (1) de bande transporteuse (2) destiné à relier deux extrémités (3) d'au moins une bande transporteuse (2), le dispositif de jonction (1) étant du type comportant au moins deux plaques de jonction (4) fixées ensemble avec les extrémités (3) de la bande transporteuse (2) par des moyens de fixation (5) comprenant chacun une tête (5a) et un tronçon d'ancrage (5b); A joining plate (4) for a conveyor belt connecting device (1) for connecting two ends (3) of at least one conveyor belt (2), the joining device (1) being type having at least two joining plates (4) fastened together with the ends (3) of the conveyor belt (2) by fastening means (5) each comprising a head (5a) and an anchor section (5b) ;
la plaque de jonction (4) étant caractérisée en ce qu'elle comporte des premières interfaces (6) pour coopérer avec les têtes (5a) des moyens de fixation (5) et des deuxièmes interfaces (7) pour coopérer avec les tronçons d'ancrage (5b) des moyens de fixation (5), les deuxièmes interfaces (7) étant distinctes des premières interfaces (6) et comprenant des inserts incorporés au moins en partie dans la plaque de jonction (4), les premières et deuxièmes interfaces (6, 7) étant disposées de sorte à former une succession de motifs (8) qui se répètent, et en ce que chaque motif (8) présente autant de première(s) interface(s) (6) que de deuxième(s) interface(s) (7). the connecting plate (4) being characterized in that it comprises first interfaces (6) to cooperate with the heads (5a) of the fixing means (5) and the second interfaces (7) to cooperate with the sections of anchoring (5b) fixing means (5), the second interfaces (7) being distinct from the first interfaces (6) and comprising inserts incorporated at least in part in the junction plate (4), the first and second interfaces ( 6, 7) being arranged so as to form a succession of patterns (8) which are repeated, and in that each pattern (8) has as many first interface (s) (6) as second (s) interface (s) (7).
2. Plaque de jonction (4) pour un dispositif de jonction (1) de bande transporteuse (2) destiné à relier deux extrémités (3) d'au moins une bande transporteuse (2), le dispositif de jonction (1) étant du type comportant au moins deux plaques de jonction (4) fixées ensemble avec les extrémités (3) de la bande transporteuse (2) par des moyens de fixation (5) de type vis (51) comprenant chacun une tête (5a) et un tronçon d'ancrage (5b) muni d'un filetage (52);  2. A joining plate (4) for a conveyor belt connecting device (1) for connecting two ends (3) of at least one conveyor belt (2), the joining device (1) being a type having at least two junction plates (4) fastened together with the ends (3) of the conveyor belt (2) by screw-type fixing means (5) (51) each comprising a head (5a) and a section anchor (5b) having a thread (52);
la plaque de jonction (4) étant caractérisée en ce qu'elle comporte des premières interfaces (6) pour coopérer avec les têtes (5a) des moyens de fixation (5) et des deuxièmes interfaces (7) pour coopérer avec les tronçons d'ancrage (5b) des moyens de fixation (5), les premières et deuxièmes interfaces (6, 7) étant disposées de sorte à former une succession de motifs (8) qui se répètent, et en ce que chaque motif (8) présente autant de première(s) interface(s) (6) que de deuxième(s) interface(s) (7). the connecting plate (4) being characterized in that it comprises first interfaces (6) to cooperate with the heads (5a) of the fixing means (5) and the second interfaces (7) to cooperate with the sections of anchoring (5b) the fastening means (5), the first and second interfaces (6, 7) being arranged to form a succession of patterns (8) which are repeated, and in that each pattern (8) has as much first interface (s) (6) than second interface (s) (7).
3. Plaque de jonction (4) selon la revendication 1 ou 2, caractérisée en ce que les premières interfaces (6) comportent des rondelles (61) percées comportant une cuvette (62) apte à loger une tête (5a) des moyens de fixation (5).  3. junction plate (4) according to claim 1 or 2, characterized in that the first interfaces (6) comprise washers (61) pierced with a bowl (62) adapted to house a head (5a) fastening means (5).
4. Plaque de jonction (4) selon l'une quelconque des revendications précédentes, caractérisée en ce que les deuxièmes interfaces (7) comportent une partie tubulaire (71) cylindrique dont une surface cylindrique intérieure (72) est apte à coopérer avec un tronçon d'ancrage (5b) des moyens de fixation (5). 4. junction plate (4) according to any one of the preceding claims, characterized in that the second interfaces (7) comprise a cylindrical tubular portion (71) whose inner cylindrical surface (72) is adapted to cooperate with a section anchoring (5b) fastening means (5).
5. Dispositif de jonction (1) pour bande transporteuse (2), destiné à relier deux extrémités (3) de d'au moins une bande transporteuse (2), le dispositif de jonction comprenant au moins deux plaques de jonction (4) configurées pour recouvrir chacune un côté (3a, 3b) distinct des extrémités de la bande transporteuse (2) de sorte à ce que ladite bande transporteuse (2) soit disposée entre les deux plaques de jonction (4), les plaques de jonction (4) étant fixées ensemble par des moyens de fixation (5) agencés pour traverser respectivement une plaque de jonction (4), une des extrémités (3) de la bande transporteuse (2) puis l'autre plaque de jonction (4), les moyens de fixation (5) comprenant chacun une tête (5a) et un tronçon d'ancrage (5b), les plaques de jonction (4) comportant des premières interfaces (6) pour coopérer avec les têtes (5a) des moyens de fixation (5) et des deuxièmes interfaces (7) pour coopérer avec les tronçons d'ancrage (5b) des moyens de fixation (5), le dispositif de jonction (1) étant caractérisé en ce que les plaques de jonction (4) sont conformes à l'une quelconque des revendications précédentes et en ce qu'elles sont agencées pour s'apparier l'une avec l'autre. Connecting device (1) for a conveyor belt (2) for connecting two ends (3) of at least one conveyor belt (2), the connecting device comprising at least two junction plates (4) configured to cover each one side (3a, 3b) distinct from the ends of the conveyor belt (2) so that said conveyor belt (2) is arranged between the two connecting plates (4), the connecting plates (4) being fastened together by fastening means (5) arranged to cross respectively a junction plate (4), one end (3) of the conveyor belt (2) and then the other junction plate (4), the means of fastener (5) each comprising a head (5a) and an anchoring section (5b), the connecting plates (4) having first interfaces (6) for cooperating with the heads (5a) of the fastening means (5) and second interfaces (7) for cooperating with the anchoring sections (5b) of the fixing means 5), the connecting device (1) being characterized in that the joining plates (4) are in accordance with any one of the preceding claims and in that they are arranged to mate with each other. the other.
6. Dispositif de jonction (1) selon la revendication 5, caractérisée en ce que chacune des plaques de jonction (4) comporte autant de premières interfaces (6) que de deuxièmes interfaces (7).  6. junction device (1) according to claim 5, characterized in that each of the junction plates (4) comprises as many interfaces (6) as second interfaces (7).
7. Dispositif de jonction (1) selon la revendication 5 ou 6, caractérisé en ce que les plaques de jonction (4) sont identiques.  7. Connecting device (1) according to claim 5 or 6, characterized in that the connecting plates (4) are identical.
8. Dispositif de jonction selon la revendication 5 ou 6, caractérisé en ce que les motifs (8) des deux plaques de jonction (4) sont décalés d'un pas prédéterminé.  8. Connecting device according to claim 5 or 6, characterized in that the patterns (8) of the two junction plates (4) are offset by a predetermined pitch.
9. Dispositif de jonction (1) selon l'une des revendication 6 à 8, caractérisé en ce que chacune des plaques de jonction (4) comporte une première et une deuxième ailes (41, 42) opposées et configurées pour recouvrir chacune une extrémité (3) distincte de la bande transporteuse (2) d'un même côté, la première aile (41) comprenant uniquement des premières interfaces (6) et la deuxième aile (42) comportant uniquement des deuxièmes interfaces (7).  9. junction device (1) according to one of claims 6 to 8, characterized in that each of the junction plates (4) comprises a first and a second flanges (41, 42) opposite and configured to each cover one end (3) separate from the conveyor belt (2) on the same side, the first wing (41) comprising only first interfaces (6) and the second wing (42) having only second interfaces (7).
10. Procédé de fabrication d'une plaque de jonction (4) conforme à l'une quelconque des revendications 1 à 4, caractérisée en ce qu'elle comprend au moins les étapes suivantes :  10. A method of manufacturing a junction plate (4) according to any one of claims 1 to 4, characterized in that it comprises at least the following steps:
fabrication d'une succession continue de plaques de jonction (4) sous forme de bande ; et  manufacturing a continuous succession of strip-shaped joining plates (4); and
découpe, à partir de ladite bande ainsi fabriquée, des plaques de jonctions (4) suivants des dimensions prédéterminées.  cutting, from said strip thus manufactured, junction plates (4) following predetermined dimensions.
EP19713096.6A 2018-02-22 2019-02-22 Junction device for conveyor belts Withdrawn EP3755921A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1851530A FR3078130B1 (en) 2018-02-22 2018-02-22 JUNCTION DEVICE FOR CONVEYOR BELTS
PCT/FR2019/050406 WO2019162628A1 (en) 2018-02-22 2019-02-22 Junction device for conveyor belts

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EP3755921A1 true EP3755921A1 (en) 2020-12-30

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US (1) US11378155B2 (en)
EP (1) EP3755921A1 (en)
JP (1) JP2021515146A (en)
CN (1) CN111742161A (en)
AU (1) AU2019224608A1 (en)
BR (1) BR112020017049A2 (en)
CA (1) CA3091317A1 (en)
CL (1) CL2020002126A1 (en)
CO (1) CO2020010172A2 (en)
EA (1) EA202091683A1 (en)
FR (1) FR3078130B1 (en)
IL (1) IL276850A (en)
MA (1) MA51911A (en)
MX (1) MX2020008653A (en)
PE (1) PE20201370A1 (en)
PH (1) PH12020551294A1 (en)
SA (1) SA520412677B1 (en)
UA (1) UA126872C2 (en)
WO (1) WO2019162628A1 (en)
ZA (1) ZA202005279B (en)

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CA2176282C (en) * 1996-05-10 2006-07-11 Michael Surina Rotary cutoff device
FR2803836B1 (en) 2000-01-19 2002-03-22 Aser Sarl JOINING DEVICES FOR CONVEYOR BELTS, METHOD FOR MANUFACTURING SAME AND METHOD FOR MOUNTING SAME ON A CONVEYOR BELT
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CN104832507B (en) * 2015-03-24 2017-04-19 南京航空航天大学 Composite-material plate joint
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PH12020551294A1 (en) 2021-07-12
IL276850A (en) 2020-10-29
AU2019224608A1 (en) 2020-10-08
MA51911A (en) 2021-05-26
CO2020010172A2 (en) 2020-11-10
ZA202005279B (en) 2021-07-28
UA126872C2 (en) 2023-02-15
MX2020008653A (en) 2020-12-11
SA520412677B1 (en) 2022-09-12
JP2021515146A (en) 2021-06-17
EA202091683A1 (en) 2020-11-06
CN111742161A (en) 2020-10-02
US20210054906A1 (en) 2021-02-25
CL2020002126A1 (en) 2021-01-04
CA3091317A1 (en) 2019-08-29
US11378155B2 (en) 2022-07-05
FR3078130B1 (en) 2020-03-06
PE20201370A1 (en) 2020-11-30
BR112020017049A2 (en) 2020-12-15
FR3078130A1 (en) 2019-08-23
WO2019162628A1 (en) 2019-08-29

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