MXPA96005289A

MXPA96005289A - Modular conveyor chain including gozne passengers with cab

Info

Publication number: MXPA96005289A
Application number: MXPA/A/1996/005289A
Authority: MX
Inventors: C Stebnicki James
Original assignee: Rexnord Corporation
Priority date: 1996-02-05
Filing date: 1996-10-31
Publication date: 1997-08-01

Abstract

The present invention relates to a conveyor belt characterized in that it comprises: a first conveyor element that includes a series of eyelets separated from one another, defining between them a series of spaces and including a subset of centrally located eyelets, respectively including the same openings aligned with respect to each other, and an end eyelet adjacent one end of the sub-set of centrally located eyelets and including therein an opening located in partial correpondence with the apertures of the centrally located eyelet sub-series, and an area of stop adjacent the opening in the end eyelet, a second transposable web element of elastic material and including a series of eyelets spaced apart from each other, extending towards the spaces between the eyelets of the first conveyor element, defining between the same a series of spaces that receive the eyelets of the central subseries of oja of the first conveyor element, and respectively including in the same openings with respect to each other and with respect to the openings of the centrally located sub-frame of eyelets, and having a dimension, a hinge pin that includes a central portion that is extends in the apertures of the centrally located buttonhole sub-array of the first transposer strip element and in the eyelet openings of the second conveyor belt element, and an enlarged end portion located between the end eye of the first conveyor element and the eyelets of the second transposer strip element and in interference alignment with the end eye stop area of the first conveyor element and having a dimension greater than the size of the eyelet openings of the second conveyor belt element

Description

MODULAR CONVEYOR CHAIN INCLUDING GOZNE PINS WITH HEAD BACKGROUND OF THE INVENTION The invention generally relates to the construction of a band, chain or conveyor belt and in particular to systems or arrangements for preventing the axial migration of a hinge pin connecting two adjacent elements of band, chain or conveyor belt. Very specific, the axial loads on the hinge pin in a band, chain or conveyor belt are such that a hinge pin retention system is needed to prevent the hinge pin from moving axially and forcing its hitch out. the axially adjacent elements of the belt, chain or conveyor belt. In the past, plugs or pins with head or link extensions with cover have been used to prevent the movement of axial hinge pin .. The tension is directed to the following patents of E.U.A. : 4,858,753, issued August 22, 1989 4,949,838, issued August 21, 199 (1 4,972,942, issued November 27, 1990 5,020,556, issued June 4, 1991 5,058,732, issued September 20, 1990 5,105,938, issued on April 21, 1992, 5,156,262, issued on October 20, 1992, 5,156,264, issued on October 20, 1992, 5,332,084, issued on July 26, 1994.

BRIEF DESCRIPTION OF THE INVENTION The invention provides a conveyor belt comprising a first conveyor belt element that includes a series of eyelets spaced apart from one another, defining between them a series of spaces and including a subset of eyelets located centrally, respectively including aligned openings therein. one with respect to another, and an end eyelet adjacent to one end of the sub-eyelet of centrally located eyelets and including therein an opening located in partial correspondence with the apertures of the sub-eyelet of centrally located eyelets, and a supporting area adjacent to the eyelets. the opening in the end eyelet, a second conveyor element made of elastic material and including a series of eyelets spaced apart from each other, extending towards the spaces between the eyelets of the first conveyor element, defining between them a series of spaces that receive the eyelets of the central sub-series of eyelets of the first eleme conveyor belt, and respectively including in the same openings aligned with respect to each other and with respect to the openings of the centrally located sub-frame of eyelets, and having a dimension, and a hinge pin that includes a central portion that is extends in the apertures of the sub-eyelet of centrally located eyelets of the first conveyor element and in the eyelet openings of the second conveyor element, and an elongated end portion located between the end eye of the first conveyor element and the end elements. eyelets of the second conveyor element and in interference alignment with the end eye support area of the first conveyor element and having a dimension greater than the dimension of the eyelet openings of the second conveyor element. The invention also provides a conveyor belt in accordance with the preceding paragraph wherein the opening in the end eye of the first conveyor belt member has a dimension, and wherein the enlarged end portion has a dimension greater than the dimension of the openings in the carriers. eyelets of the second conveyor belt element and smaller than the size of the opening in the end grommet of the pprner elernento conveyor belt. The invention also provides a conveyor belt comprising a first conveyor belt element made of elastic material and including an ex pad that comprises a series of eyelets separated from one another, defining between them a series of spaces, and including a subset of eyelets centrally located spaced apart from each other at a given distance and respectively including in the same apertures aligned with respect to each other and having a dimension, and one or the end located adjacent to one end of the subsepe of eyelets centrally located and in axial relation spaced apart therefrom at a distance approximately equal to three times the given axial distance between the adjacent eyelets of the centrally located eyelet sub-series and including therein an aperture located in partial correspondence with the eyelets. apertures of the buttonhole subsector centredly located and having a dimension greater than the dimension of the opening at or to the end of the first band-passer element, and a support area located adjacent to the opening of the or to the end, a second element Conveyor t-band including an ext oar comprising a series of eyelets separated from each other, which is extu Enden in spaces between the eyelets of the first conveyor belt element, defining between them a series of spaces receiving the eyelets of the central sub-series of the eyelets of the first conveyor element, and including an end eyelet, and openings located in each of the series of eyelets of the second conveyor element, being aligned with respect to each other, and having a dimension substantially equal to the dimension of the opening in the third eyelet of the first conveyor element, and a hinge pin made of elastic material having an axial length less than the axial distance between the end eye of the second conveyor belt member and the end eye of the first conveyor belt member and including a centil portion extending into the apertures of the conveyor belt. sub-series of centrally located eyelets of the first conveyor belt element and in the apertures of the eyelets of the second conveyor element, and an enlarged end portion located between the end eye of the first conveyor element and the end eye of the second conveyor element and the enlarged end portion having an inner end located adjacent to the central portion and has a dimension greater than the dimension of the eyelet openings of the second conveyor element, and an outer end located distantly of the central portion and located in interference alignment with the end eye support area of the first conveyor element -to. Other features and advantages of the invention will become apparent to those skilled in the art upon review of the following detailed description, claims and drawings.

DESCRIPTION OF THE DRAWINGS Figure 1 is a fragmentary perspective view, partially broken away and in section, of a conveyor belt that modalizes several of the aspects of the invention. Figure 2 is a fragmentary sectional view of a portion of the conveyor belt shown in Figure 1. Figure 3 is a fragmentary end view of the conveyor belt shown in Figure 1. Figure 4 is a fragmentary end view that is similar to Figure 3 and which illustrates a further embodiment of the invention. Figure 5 is a fragmentary view that is similar to Figure 2 and illustrating a further embodiment of the invention. Figure 6 is a fragmentary view that is similar to Figure 2 and illustrating yet another embodiment of the invention. Before explaining in detail one embodiment of the invention, it should be understood that the invention is not limited in its application to the details of the construction and the component arrangements set forth in the following specification or illustrated in the drawings. The invention may have other embodiments and may be practiced or carried out in other ways. Also, it should be understood that the wording and terminology used here is for the purpose of description should not be considered co or limiting.

? ? DESCRIPTION OF THE PREFERRED MODALITY Figure 1 shows a rail assembly, or chain or band, or conveyor belt 11 comprising first and second elements or bands or rail or links 13 and 15, respectively, and a hinge pin 17 that connects pivotally to the first and second conveyor belt elements or links 13 and 15. The invention can be applied to any type of rail assembly, chain, belt or conveyor belt and except as indicated below, conveyor belt elements can take any form conventional and can be made of any suitable material. The first conveyor element 13 can be made of any suitable plastic material or other material that is preferably elastically flexible and includes sides 22 that extend generally in a straight line and are laterally separated, together with a first end 21 located between the sides 22 and comprising a first series of eyelets 23 that are separated from one another, defining between them a series of spaces 25 and including a sub-section of centrally located eyelets 27 respectively including therein openings or holes 29 aligned with respect to each other along an axis 30 and having a given diameter or dL insion. Preferably, the openings or holes 29 are cylindrical, have a common axis 30 and a common diameter. The end 21 of the first conveyor member or link 13 also includes a first end grommet 31 adjacently separated from one end of the centrally located buttonhole sub-frame 27 and a second or to the end 33 adjacently spaced from the other end of the buttonhole sub-section. centrally located 27. Ln the preferred construction, the first extreme eyelet 31 is separated from the adjacent eyelet of the sub-eyelet of centrally located eyelets 27 at a distance of about 3 times the axial length of the individual spaces 25 between the eyelets 27 of the sub-eyelet of centrally located eyelets 27. In other constructions, the first end eyelet can be separated enough to provide access to the pin end - for inspection and removal with normal tools, ie with needle nose pliers or a screwdriver. The end hole 33 is separated from the adjacent eyelet of the subsorie of centrally located eyelets 27 at a distance that is approximately equal to the axial length of the spaces 25 between the eyelets 27 of the centrally located buttonhole sub-section. The end eyelets 31 and 33 include in the same respective openings or eyelets 41 and 43 which are generally in shape. cylindrical The opening 41 in the end eye 31 t L has a diameter greater than the diameter of the openings 29 in the eyelets 27 of the centrally located eyelet sub-series and has an ee 47 located eccentrically or spaced apart from the axis 30 of the subset of centrally located apertures 29 of the first conveyor element 13. The end eye 31 includes (see FIG. 2) a support area 51 located within a projection of the apertures 29 of the sub-section of centrally located buttonholes 27. Although others may be employed dispositions, in the construction described, the shaft 47 of the opening 41 at or to the end 31 is preferably located in spaced or apart relation to the axis 30 of the opening 29 in the subset of centrally located eyelets 27 at a short distance in the direction of passage or direction of travel 61 of the band t ansportador-a ll. As desired, as shown in Fig. 4, the ee 47 can be located in separate or offset relation of the axis 3 (3 of the opening 29 in the sub-frame of eyelets cenal e located 27 a short distance in the direction 63 of the height of the conveyor belt or chain, that is, in the direction 63 perpendicular to the direction of travel or direction 61 of a conveyor belt travel The offset in the direction of passage 61 prevents the pasti- of hinge Advance or inverse axially when the conveyor belt 11 is either tensioned or compressed The offset in the direction 63 of the height of the conveyor belt prevents the hinge pin 17 from advancing or moving axially when the conveyor belt 11 experiences height variations between adjacent links or elements 13 and 15. The opening 43 in the end eye 33 has a diameter substantially equal to the diameter of the openings 29 in the eyelets 27 of the centrally located subsepe and it is located in axial alignment with them. The second element or link of the conveyor belt 15 can be made of any plastic, metallic and other material material and includes laterally spaced sides in which they generally extend in an il-rect rectilinear shape 72, together with an end 71 located therebetween. sides 72 and comprising a series of eyelets 73 axially or transversally spaced apart from each other, which extend within the spaces 25 between the eyelets 23 of the first transverse band element or link 13, and which defines between them the another series of spaces 75 receiving the centrally located subsepe of eyelets 27 of the first element or link 13 of the conveyor belt. Buttonholes 73 respectively include in the same apertures or holes 77 which are aligned with respect to each other and with respect to openings 29 in the sub-frame of buttonholes centredly located 27 of the first element or link 13 of conveyor belt-a, and which have a dimension or a substantial diameter in e thereof than the aber-tur-as 29 of the centrally located subset of eyelets 27 of the first conveyor rail link 13. The hinge pin can be made of any plastic, metallic or other material that is elastically flexible and includes a central portion 81 that extends into the openings 29 of the centrally located buttonhole subsene 27 of the first band element or link 13 conveyor, and in the openings 77 of the eyelets 73 of the second element or conveyor belt link 15 and having a diameter only slightly smaller than the diameter of the openings 29 of the sub-section of centrally located eyelets 27 of the first element or link 13 of conveyor belt. In addition, the hinge pin 17 includes a first end portion 83 located adjacent the end eye 31 of the first conveyor belt member 13 and in interference alignment with the bearing area 51 of the first extruder eyelet 31 of the first element or web. n 13 conveyor belt. Most particularly, although other constructions may be employed, in the described construction, the end portion 83 includes an enlarged head 85 which is solid in construction and which has a maximum diameter or dimension that is slightly smaller than the diameter of the opening 41 in the end grommet 31, but which is larger than the diameter of the openings 77 in the eyelets of the second conveyor belt link-a 15. Preferably, the enlarged head 85 is in the shape or configuration of an axially diverging cone outwardly that it has the maximum diameter at the outer end thereof and at the axially inner end thereof it emerges towards the diameter of the central portion of the hinge pin 81. The use of the unique diverging axially outward shape helps to provide an action of cam to facilitate the passage of the enlarged head 85 through the opening 41 in the ex ower 31. The hinge pin 17 also includes a second portion 87 which is located in the opening 43 in the second outer eyelet 33 of the first element or link 13 of the conveyor belt, and having a diameter equal to the diameter of the central portion 81 of the hinge post 17. In some cases, if the first element or link 13 of the conveyor is made of sufficiently elastic material, then the hinge pin L7 does not need elastic. On the contrary, if the hinge pin 17 is made of a material sufficiently elastic, then the first element or link 13 of the conveyor belt does not need to be elastic. However, preferably, it is desirable that the first conveyor belt member 13 and the hinge pin 17 be resilient. In the assembly and the conveyor belt 11, the first and second conveyor belt elements 13 and 15 are assembled with the centrally located eyelets 71 of the first transverse belt member or link 13 in the spaces 75 of the second element. or conveyor belt link 15 and with eyelets 73 of the second conveyor belt element or link 15 in the space 25 of the first conveyor belt member 13 to locate the openings 27 and 77 in axial alignment. Subsequently, the end portion 87 of the hinge pin 17 is inserted into the birds of the opening 41 at the end or end 31 of the first conveyor element 13, through the openings 29 and 11 respectively located in the series of eyelets. centrally located 27 in the first conveyor belt member 13 and in the eyelets 73 of the second conveyor belt member 15, and then through the opening 41 in the second end eyelet 33 of the first conveyor belt element 13. Due to the elasticity of the first link 13 of the conveyor belt and / or the hinge pin * 17, and notwithstanding the eccentricity or desalination of the opening 41 in the end eyelet 31 with the openings 77 in the second link 15 of the conveyor belt, such passing from the second end portion 87 to the second end eye 33 also serves to pass the end portion 03 of the hinge pin 17 through the end eye 31. When in the end portion 83 of the hinge pin completes the passage through the aperture 41 in the end eye 31 of the first link 13 of the conveyor belt, the elasticity of the components causes a r-eal? Neam? Ento such that the The enlarged head 85 of the hinge pin 17 is placed in continuous alignment with the contiguity area 51 of the or the end 31, thereby preventing axial movement of the hinge pin in the direction of the end grommet 31. At the same time, the complete insertion of the end portion 83 of the hinge pin through the opening 41 and the end eye 31 places the inner end of the enlarged end portion 83 in immediate proximity with the eye 77 present in the second link 15 of the conveyor belt. Due to the increasing diameter of the comea figure of the enlarged head 85, the axial movement of the hinge pin 17 in axial direction toward the end eye 33 is also prevented. In this manner, the enlarged end portion 83 (positioned only at one end of the hinge pin 17) is effective, in the described construction, to prevent axial movement of the hinge pin 17 in both axial directions. As already indicated, such insertion of the hinge pin 17 into the said openings is carried out by tilting or deflecting the hinge pin 17 and / or the first end grommet 31, and made possible by the elasticity of the past. 17 hinge / o jel first element or link 13 of the transport band. Accordingly, the use of the misaligned opening 41, in the first end grommet 31 of the first element or link 13 of the conveyor belt, prevents the hinge pin 17 from moving axially or moving in both axial directions and, accordingly, it avoids the disassembly of the connected elements or links 13 and 15 of the conveyor belt. Furthermore, it is avoided beforehand to use additional parts outside the pin 1? of hinge and one of the connected elements or links 13 and 15 of the conveyor belt. Figure 5 shows another embodiment of a hinge pin 117 which is constructed identically to the hinge pin 1 1 already describedexcept that, at the lower end of the enlarged end portion 183, the hinge pin 117 is provided with a shoulder 191 extending perpendicular to the axis of the hinge pin and having an external diameter greater than the diameter of the hinge pin. the openings 77 in the second element or link 15 of the conveyor belt., Figure 6 shows another embodiment of a hinge pin 217 which is constructed identical to the hinge pin 17 which has already been described, except that the pin 217 The hinge has an enlarged end portion 283 of conical shape that is provided with a sample 291 extending axially to provide two projections 293 extending in a parallel direction spaced apart. The use of the projections 293 described, allows partial collapse of the outer end of the enlarged end portion 283 to decrease the dimension on the outer end thereof in order to facilitate assembly of the end portion 283 of the pin 217. of hinge through the opening 41 in the end eyelet 31. Accordingly, the non-depressed dimension of the enlarged end portion 283 of the hinge pin 217 may be equal to or slightly greater than the dimension or diameter of the opening 41 in the end eyelet 3L. In a preferred embodiment of the invention the pin is made of a plastic material having an elasticity such that the head of the pin can be deformed and then returned to its original shape.

In the described construction, the enlarged spacing in the end eyelet 31 and the adjacent grommet 77 of the centrally placed eyelet subseries 27 allow for visual inspection of the proper mounting, cleaning and pin wear, and easy access for dismantling when you want In addition, the construction described does not require any special tool for the assembly of the conveyor belt 1.1. And further, the described construction serves to physically obstruct the hinge pin 17 against axial movement in the two mutually related perpendicular directions. Several of the features are set forth in the following claims.

Claims

NOVELTY OF THE INVENTION CLAIMS

1. - A conveyor belt comprising a first conveyor belt element-a including a series of eyelets separated from each other, defining between them a series of spaces and including a subset of centrally located eyelets, respectively including aligned openings therein with respect to others, and one or the end adjacent an end of the sub-set of centrally located eyelets and including therein an opening located in partial correspondence with the apertures of the sub-eyelet of centrally located, and a support area adjacent to the eyelets. the opening in the end eyelet, a second conveyor element made of elastic material and including a series of eyelets separated from one another, extending towards the spaces between the eyelets of the first conveyor element, defining between the same a series of spaces that receive The eyelets of the central sub-section of eyelets of the first element of band t ransported, and respectively including in the same aligned openings with respect to each other and with r-mirror to the openings of the centrally located buttonhole sub-section, and having a dimension, and a hinge pin that includes a central portion extending in the apertures of the centrally located buttonhole sub-section of the first conveyor belt member-a and in the eyelet apertures of the second conveyer belt member, and an elongated end portion located between the end eye of the first conveyor member and eyelets of the second conveyor belt element and in interference alignment with the bearing area of the or the end of the first conveyor belt element and having a dimension greater than the dimension of the eyelet openings of the second conveyor belt element.

2. A conveyor belt according to claim 1, characterized in that said opening in said end eye of said first element of the conveyor belt has a certain dimension, and in that said enlarged end portion has a dimension greater than said dimension of said openings in said eyelets of said second conveyor belt element and smaller than said dimension of said opening in said or the end of the first element of the tr-ansport belt.

3. A conveyor belt according to claim 1, characterized in that at least one of said first element of the conveyor belt and said hinge pin is made of elastic material.

4. A conveyor belt according to claim 1, characterized in that no said front of the conveyor belt as said hinge pin is made of elastic material.

5. A conveyor belt according to claim 1, characterized in that said hinge pin and said first and second elements of the conveyor belt are made of elastic material.

6. A conveyor belt according to claim 1, characterized in that said second element of the conveyor belt-a has an end eye placed adjacent to said or the end of said first element of the conveyor belt and having a extension projecting axially from said hinge pin, and in that said space located between said end eye of said first element of the conveyor belt and said or the end of said second element of the conveyor belt has an axially projecting extension of said hinge pin equal to approximately twice the axial extension of said end grommet of said second end of the conveyor belt-a.

7. A conveyor belt according to claim 1, characterized in that said extr-emo eyelet of said first element of the conveyor belt is spaced from said sub-section of centrally placed eyelets by a distance approximately equal to three times the space between said eyelets of said central buttonhole subseries.

8. A conveyor belt in accordance with claim 1, characterized in that said outer portion has a generally conical shape that includes an inner end placed adjacent said central portion and an end leaving said central portion and having a greater division of said dimension of said openings of said eyelets said second element of the conveyor belt, and an outer end positioned away from said central portion and having a larger dimension than said division of said internal end and which can pass through said opening in said end eyelet of said first element of the conveyor belt.

9. A conveyor belt according to claim 1, characterized in that said second element of the conveyor belt has an end eye placed adjacent to said end eye of said first element of the conveyor belt-a, and in that said end portion of said The hinge pin has an axial length less than the axial distance between said end eye of said second element of the conveyor belt and dLCho or the end of said first element of the conveyor belt.

10. A conveyor belt according to claim 1, characterized in that the separation between said end grommet of said second element of the conveyor belt and said end grommet of said first element of the conveyor belt is greater than the spacing between said eyelets of said sub-section of eyelets placed centrally.

11. A conveyor belt according to claim 1, characterized in that said end portion of said hinge pin defines a shoulder placed adjacent said central portion of said hinge pin and having a dimension greater than said dimension. of said openings of said eyelets of said second element of the conveyor belt.

12. A conveyor belt according to claim 1, characterized in that said opening and said end eye of said first element of the transpor band has a dimension, and in that said end portion of said hinge portion diverges axially outward and has conical shape and includes a central groove extending axially defining two radially spaced projections having an external end combined with a dimension equal to or slightly greater than said dimension of said opening at said or the end of said first element of the conveyor belt.

13. - A conveyor belt comprising a pprner the conveyor belt element-a made of plastic material and including an end comprising a series of eyelets separated from each other, defining between them a series of spaces, and including a sub-section of eyelets centrally located spaced apart from each other at a given distance and including respectively in the same apertures aligned with respect to each other and having a dimension, and an end eye located adjacent to one end of the sub-eyelet section centrally located and in axially related relationship with respect to it at a distance approximately Lguai to three 00 times the given axial distance between the adjacent eyelets of the centrally located eyelet sub-series and including therein an opening located in partial correspondence with the centrally located eyelet sub-eye openings and having a dimension greater than the size of the aperture in the eyelet. extr-emo grommet of the first conveyor element, and a support area located adjacent to the end grommet opening, a second conveyor belt element including an end comprising a series of eyelets spaced apart from one another, extending into the grommets. spaces between the eyelets of the first conveyor belt element, defining among them a series of spaces receiving the eyelets of the central sub-series of the eyelets of the first conveyor element, and including an end eyelet, and openings located in each of them. the series of eyelets of the second conveyor element, being aligned with respect to each other, and have A dimension substantially equal to the dimension of the opening in the third eye of the first conveyor element, and a hinge pin made of elastic material having an axial length less than the axial distance between the end eye of the second band element. the conveyor and the end eye of the first conveyor element and including a central portion extending into the openings of the centrally located eyelet sub-frame of the first conveyor element and in the eyelet openings of the second conveyor element, and an enlarged end portion located between the end eye of the first conveyor element and the end of the second conveyor element and the enlarged end portion having an inner end located adjacent to the central portion and having a dimension greater than the dimension of the holes in the eyelets of the second element of the conveyor, and an outer end located distantly of the central portion and located in alignment of interference with the support area of the end grommet of the first conveyor element.

14. A conveyor belt according to claim 13, characterized in that said end portion of said hinge pin includes an externally axial end that has a dimension slightly smaller than said dimension of said opening in said end eye of said first element of said hinge pin. the conveyor belt.

15. A conveyor belt according to claim 13, characterized in that said function of said hinge pin includes a central groove extending axially and defining two radially spaced projections. 16"- A conveyor belt according to claim 15, characterized in that said projections have an external end combined with a dimension equal to or slightly greater than said dimension of said opening of said end eyelet said first element of the conveyor belt ra. 17. A conveyor belt according to claim 13, characterized in that said end portion of said hinge pin includes an internal end that is placed adjacent to said end grommet on said second element of the conveyor belt and that defines a shoulder placed adjacently. to said central portion of said hinge pin and having a greater direction of said dimension of said openings of said eyelets of said second element of the conveyor belt. 18. A conveyor belt according to claim 13, characterized in that said second element of the conveyor belt is also made of elastic material. SUMMARY OF THE INVENTION There is described here a conveyor belt consisting of a first conveyor element that includes a series of eyelets spaced apart from one another, defining between them a series of spaces, and including a series of centrally placed eyelets that respectively include the same openings aligned with respect to each other, and an end eyelet adjacent to one end of the buttonhole sub-section 10, placed centrally and including therein an opening placed in partial correspondence with the subseries openings of the centrally placed eyelets, and a supporting area adjacent to the aperture at or at the end, a second element of the band. conveyor made of material 15 elastic and including a series of eyelets separated from each other, which extends to the spaces between the eyes of the first element of the conveyor belt, defining between them a series of spaces receiving the eyelets of the central series of buttonholes of the first band element 20, and respectively including therein aligned openings with r-mirror to each other and with respect to the openings of the series of centrally placed eyelets, and having a dimension, and a hinge pin that includes a central portion that It extends into the openings of the eubsepe •) (of the centrally positioned eyelets of the first element of the conveyor belt and in the eyelet openings of the second element of the conveyor belt, and an agricultural end portion, placed between the end eye of the first element of the belt conveyor and eyelets of the second element of the conveyor belt and in interference alignment with the end eye support area of the first conveyor element and having a dimension greater than the dimension of the eyelets apertures of the second band element transporter D_J / GC / crrn * ieoh * ade * rnvs P96-404