EP0123737A1 - Procédé de fabrication d'un tapis de blocs - Google Patents

Procédé de fabrication d'un tapis de blocs Download PDF

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Publication number
EP0123737A1
EP0123737A1 EP83200622A EP83200622A EP0123737A1 EP 0123737 A1 EP0123737 A1 EP 0123737A1 EP 83200622 A EP83200622 A EP 83200622A EP 83200622 A EP83200622 A EP 83200622A EP 0123737 A1 EP0123737 A1 EP 0123737A1
Authority
EP
European Patent Office
Prior art keywords
blocks
nails
rails
mat
aid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83200622A
Other languages
German (de)
English (en)
Other versions
EP0123737B1 (fr
Inventor
Cornelis Rook
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.)
Gebroeders Rook Beheer BV
Original Assignee
Gebroeders Rook Beheer BV
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 Gebroeders Rook Beheer BV filed Critical Gebroeders Rook Beheer BV
Priority to DE8383200622T priority Critical patent/DE3375734D1/de
Priority to EP83200622A priority patent/EP0123737B1/fr
Priority to AT83200622T priority patent/ATE32614T1/de
Publication of EP0123737A1 publication Critical patent/EP0123737A1/fr
Application granted granted Critical
Publication of EP0123737B1 publication Critical patent/EP0123737B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/123—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of stone, concrete or similar stony material

Definitions

  • the invention relates to a method of manufacturing a block mat comprising a carrying cloth and concrete blocks fastened to said block with the aid of nails.
  • So-called block mats composed of a carrying cloth and concrete blocks fastened to said carrying cloth are employed, for example, in water engineering for protecting banks or bottoms to prevent erosion of the subjacent ground by water streams or the like.
  • Such blocks of concrete can be manufactured with the aid of conventional press devices in which a plurality of concrete blocks ca ⁇ be simultaneously made side by side in a mould.
  • the invention has for its object to provide a method of the cind set forth in which the drawbacks inherent in the methods hitherto used for manufacturing block mats can be avoided.
  • the blocks are made with holes for receiving nails arranged in a given pattern, which blocks are disposed with the aid of setting members Ln a manner such that the blocks are all located in a given relative position, whilst at the same time the carrying cloth is moved into the correct position relative to the blocks, after which the nails are inserted into the holes provided thereto.
  • guide members are arranged for this purpose on the 3 ide of the carrying cloth remote from the blocks for means adapted to move along said guide members to introduce nails into the holes, the guide members and/or the means for inserting the nails being pro- wided with members for correctly positioning the means for inserting the nails with respect to the holes made in the concrete blocks so that the nails can be inserted across the carrying cloth into the holes in the concrete blocks.
  • the setting means and the guide members bring about a correct disposition of the blocks and a correct deposition of the means for inserting the nails so that said nails can be introduced at the correct places into the holes in the concrete blocks without the need for the holes in the concrete blocks to be visible to the person who is inserting the nails.
  • This method is particularly suitable for fully or partly automating the insertion of the nails with the aid of appropriate shooting devices or the like.
  • the mould 1 shown in Fig. 1 may be employed.
  • Said mould comprises sidewalls 2 and transverse partitions 3 arranged between said sidewalls and being orthogonal to one another, said partitions dividing the space bounded by the walls 2 into a plurality of compartments 4 having a rectangular section in this embodiment.
  • This mould can be arranged to form rectangular concrete blocks 5 of the kind shown by way of example in Figs. 2 and 3 in a known press device not shown in the Figures, which may be provided with a plurality of ramming plates 6 of the form shown in Fig. 4. It will be obvious that the ramming plates 6 are disposed in the press in a manner such that the number and disposition of the ramming plates 6 correspond with the number and disposition of the recesses 4 in the mould 1. Concrete mortar can then be poured into the recesses 4 and be consolidated with the aid of the ramming plates.
  • the ramming plate is provided with a plurality of pins 7, in this case three, so that during the manufacture of a concrete block 5 three recesses 8 are simultaneously formed in a given pattern in the concrete block.
  • the nail preferably made from synthetic resin
  • the lower end of the shank has the shape of a tip.
  • the shank is furthermore provided along a large part of its length with at least substantially radial superjacent, continuous ribs 12.
  • the continuous ribs 12 will be slightly deflected upwards.
  • the ribs 12 tend to regain their radial position shown in the Figure so that firm anchoring of the nail in the concrete block 5 is ensured.
  • Fig. 6 shows a further embodiment of a concrete block.
  • this block is formed a recess 14, the lower part of which has a larger diameter than the upper part, as will be apparent from Fig. 6.
  • Such a concrete block can be formed by a mould bearing on a bottom plate having pins the shape of which matches the design of the passage 14.
  • the ramming plate can be constructed without pins or the like.
  • such concrete blocks having such passages 14 nails can be used, which are split over at least part of their length, whilst the lower ends thereof are provided with protruding lugs which can move towards one another when the nail is introduced from above and when the lugs get into the part of the larger diameter of the passage, they resiliently move away from one another and grip behind the shoulder formed at the transition between the parts of the passage 14 having different diameters. It will be obvious that in this way several variations in designs of passages and the associated nails can be conceived.
  • the concrete blocks can be disposed subsequent to sufficient curing on a mould of the design shown by way of example in Figs. 7 to 9.
  • the mould comprises a bottom plate 15 and relatively orthogonal pieces of angle-section irons 17, the ends of which are mitred for obtaining relative joints as shown in Figs. 8 and 9.
  • the angle-section irons 16 and 17 delimit compartments 18 on the plate 15, the shape of which corresponds to the sectional area of the concrete blocks to be processed, which can be deposited between the angle-section irons 16 and 17 on the bottom plate 15 as is schematically shown in Fig. 9 by broken lines for concrete blocks 5' and 5".
  • the dimensions of the angle-section irons are chosen so that the concrete blocks will occupy the relative positions desired for the block mat to be obtained.
  • the concrete blocks obtained from the mould of Fig. 1 as a package on the gauge shown in Fig. 7.
  • This may be carried out with the aid of a device provided with a plurality of suction cups which can be put on the concrete blocks and in which subatmospheric pressure can be generated so that the concrete blocks can be lifted with the aid of the suction cups. Since the distance between the concrete blocks deposited on the gauge of Fig. 7 will in general be larger than the distance between the concrete blocks after removal from the mould of Fig.
  • the suction cups are preferably connected with the further part of the hoisting tool for lifting the concrete blocks in a manner such that the suction cups tend to occupy a position matching the position of the concrete blocks after their removal from the mould 1, whilst said suction cups are relatively displaceable in a horizontal direction so that when lowered onto the gauge shown in Fig. 7 the concrete blocks are guided by the sides of the angle-section irons 16 and 17 to the correct place on the bottom plate 15 without being hindered by the suspension of the suction cups to the hoisting tool or the like.
  • hoisting devices of different design may be used, for example, hoisting devices provided with clamping members for gripping the concrete blocks to deposit the blocks on the gauge.
  • the gauge shown in Fig. 7 may have any desired width and length. After the deposition of the blocks the carrying cloth can be spread on the blocks. After the carrying cloth is put on the blocks, the openings 8 in the blocks are no longer visible. It will be obvious from the foregoing that these openings 8 are arranged in an accurately defined pattern in the gauge of Fig. 7.
  • suitable guide means By arranging on the carrying cloth suitable guide means, the position of which matches the form of the gauge of Fig. 7, a shooting device can be moved across the carrying cloth with the aid of said guide members, the device being each time set in a position such that nails can be inserted by means of said shooting device across the carrying cloth into the holes 8 eoncerned.
  • These guide means may be formed by a partition to be placed on the carrying cloth, passages matching in place the passages 8 being provided therein for passing the nails.
  • a further possibility resides in the arrangement of rails along which the shooting device can run, whilst stops or the like are provided for correctly positioning the shooting device above the holes in the concrete blocks 5.
  • the shooting device is then preferably designed so that a plurality of nails corresponding with the plurality of recesses 8 in a concrete block can be fired simultaneously.
  • the number of recesses 8 is not limited to three as in the embodiment shown in Figs. 2 and 3, since any desired number of recesses may be provided in a concrete block for obtaining a satisfactory fixation of the carrying cloth to the concrete blocks.
  • the carrying cloth will preferably extend at least on two orthogonal sides to a sufficient extent beyond these sides in order to permit the deposition of a concrete block on a protruding rim of the carrying cloth of the neighbouring block mat.
  • angle-section irons 16 and 17 may be arranged on the bottom plate 15, between which angle-section irons 18 are then arranged angle-section irons 19 shortened by an orthogonal cut as shown in Figs. 10 and 11.
  • Figs. 12 and 13 show a device provided with an endless belt 20 guided along two drums 21 rotatable about horizontal rotary axes, at least one of which can be driven by means not shown.
  • the endless belt 20 is provided with upright ridges 22 and 23 or similar extensions or lugs extending in the direction of length and at right angles to said direction of length of the belt, said extensions bounding a compartment for depositing a block.
  • the deposition of the blocks may be manually carried out by persons 24, who pick up the blocks from stacks 25 and put them on the belt. As a matter of course this deposition on the belt may, as an alternative, take place automatically. It is then possible to connect the device as well as the devices to be discussed hereinafter with the device pressing the blocks so that the whole process can be substantially fully automated from the manufacture of the blocks up to the manufacture of the mats.
  • Fig. 12 furthermore shows that above the belt 20 is arranged a reel 26, from which the cloth 27 is wound to be placed on the blocks deposited on the belt.
  • the device may furthermore comprise a travelling bridge 28 or the like extending transversely above the belt, along which a device 29 for inserting the nails into the blocks is movable. This device may be manually operated by a person 30 or it may be designed so that it operates automatically.
  • the device shown in Fig. 14 comprises a frame 31 supporting an endless belt not shown.
  • a feeding device for feeding the blocks 32 to the endless belt a feeding device is provided, which comprises a carrier 34 disposed above a table 33 and being reciprocatory in the direction of the arrow A, to which are pivotally fastened latches 35 with the aid of horizontal pivotal shafts 36 extending at right angles to the direction of movement indicated by the arrow A.
  • the design is such that the latches 35 can only turn in clockwise direction (Fig. 14) out of a position in which the latches 35 extend vertically downwards from their pivotal shafts.
  • each concrete block placed on the table 33 can be shifted in a direction towards the frame 31, in which case each concrete block is lying between two latches 35 succeeding one another in the direction of displacement indicated by the arrow A so that the latches 35 serve as setting members by means of which the blocks are moved into their desired relative positions.
  • a reel 37 is arranged to feed the carrying cloth 38 to the concrete blocks.
  • the area of the broken line 39 means suitable for inserting the nails can be provided to put the nails in the desired manner in the blocks.
  • Figs. 15 and 16 show a device provided with two hoisting members 40 and 41 supporting rails 42 and 43 respectively. Along these rails can run a carriage 44. The top surface of this carriage may have the shape of a gauge as described above with reference to Figs. 7 to 11.
  • the carriage 44 When the carriage 44 is located on the hoisting member 41 in its lowermost position, the carriage 44 can be moved into a topmost position, as is indicated in Fig. 16, for picking up a layer of blocks on the top surface of the carriage. On these blocks can be laid a carrying cloth of the desired dimensions, after which the carriage is driven to the left, as viewed in the Figures and passed along a station located at the area of the broken line 45, where means are provided for inserting the nails into the blocks.
  • the block mat When the carriage has reached the left-most position shown in Figs. 15 and 16, where the carriage is supported by the rails 42 supported by the lifting member 40, the block mat can be removed, for example, by retaining the block mat with the aid of members not shown and by moving down the carriage 44 with the aid of the lifting member 40. Then the carriage 44 can again be driven to the right as viewed in the Figures, after which the above-mentioned cycle can be repeated.
  • At least one carriage 46 is employed, the top surface of which may also be designed in the form of a gauge of the kind described above with reference to Figs. 7 to 11.
  • the device furthermore comprises two sets of relatively parallel rails 47 and 48 respectively, the carriage being displaceable either along the rails 47 or along the rails 48, for which purpose the carriage 46 is provided with supporting ground wheels 49.
  • two further sets of rails 50 and 51 respectively are provided. From Figs.
  • the rails 50 and 51 are at right angles to the rails 47 and 48.
  • the rails 50 are supported by a lifting device 52 and the rails 51 are supported by a lifting device 53.
  • ground wheels 54 For displacing the carriage 46 along the rails 50 and 51, it is provided with ground wheels 54, the rotary axes of which are at right angles to the rotary axes of the ground wheels 49.
  • the blocks and the carrying cloth can be deposited on the carriage by means not shown, after which the carriage can be driven to the station B along the rails 47, whilst the carriage is passed along a device (not shown) with the aid of which the nails are inserted into the blocks.
  • the mat can be removed.
  • the latter can be driven along the rails 54 to station C and from this station C to station D, from which the carriage can be driven along the rails 51 to station A.
  • the device shown in Figs. 19 and 20 comprises a portal carriage 54, which is displaceable along rails 55.
  • two compartments 56 and 57 are provided between said two rails for the deposition of the required number of concrete blocks for a block mat in a given, desired pattern, for example, by using a gauge of the kind described above, It will be obvious that, as the case may be, only one compartment or more than two may be provided.
  • a further carriage 58 is displaceable along the rails.
  • the carriage 58 supports a cloth reel 59, which is freely rotatable about its horizontal centre line, which is at right angles to the direction of length of the rails 55.
  • the carriages 54 and 58 may be coupled with one another to be displaced in common along the rails 55, whereas it is also conceivable to drive the carriages separately.
  • the portal carriage 54 is provided with two insertion systems 60 for inserting the nails or pins.
  • the insertion systems are mobile or slidable with respect to the portal transversely of the direction of length of the rails 55.
  • Each insertion system 60 comprises a container 61 for a quantity of nails or pins to be inserted.
  • the nails or pins can be pressed home with the aid of pressing cylinder ' s 62 forming part of the insertion systems.
  • the nails or pins can be fed through a feed duct 63 (Figs. 21 to 23) communicating with the container 61 to a grab comprising two claws 64 and 65.
  • the claw 64 is fastened to the lower end of a tube 66, which is fastened by supports 67 to a plate 68, which forms part of the set of the insertion system concerned, which is displaceable along the portal carriage.
  • a shaft 69 is coaxially arranged, which is rotatable about its vertical centre line with respect to the tube 66.
  • the claw 65 To the lower end of the shaft 69 is fastened the claw 65.
  • the top end of the shaft 69 is provided with a fork 70.
  • the fork 70 has pivoted to it the piston rod 72 of a hydraulic ram 71.
  • the hydraulic ram in turn is connected with the plate 68. It will be obvious that the shaft 69 can be rotated about its longitudinal axis with the aid of the hydraulic ram 71.
  • the tube 66 has fastened to it a fork 73, with which is coupled the piston rod of a hydraulic ram 74, represented here only by its centre line, said hydraulic ram 74 being pivotally connected with the setting plate 68 in the manner described for the hydraulic ram 71. With the aid of the hydraulic ram 74 the tube 66 can be turned about its vertical centre line together with the claw 64 fastened to said tube 66.
  • the two claws 64 and 65 can be turned into a position in which the claws are in contact with one another and are located below the lower end of the feed duct 63 so that the shank 9 of a nail supplied through said duct drops into a hole 76 bounded by the two claws, the head 10 getting into a recess 7 in the top side of the arms.
  • the arms can be turned.into a position in which the nail is located below the pressing plunger 75.
  • the plunger can then be moved downwards to press the nail home, after which the arms can be turned away from one another as is indicated by broken lines for the arm 64 in Fig. 23. Then the nail can be pressed through with the aid of the pressing plunger 75.
  • the displacement of the portal carriage 54 along the rails 55 and the displacement of the insertion systems 62 along the portal carriage in a direction transverse of the direction of length of the rails 55 may be fully automatically controlled stepwise in accordance with the pattern in which the blocks are deposited so that the nails can invariably be inserted into the holes provided in the blocks across the cloth wound off the reel 59 and spread on the blocks.
  • the carriage supporting the insertion systems and the carriage supporting the cloth reel can be simultaneously moved over the blocks so that spreading of the cloth and insertion of the nails are simultaneously performed.
  • first the carriage supporting the cloth reel may be moved over the blocks for depositing the cloth, after which the portal carriage supporting the insertion systems may be moved over the blocks.
  • This carriage has a groung-wheel-supported frame 78. At one end the carriage is supported by ground wheels 79 in the embodiment shown which are fastened to a bogie 80. The bogie has fastened to it a drawbar 81. On the other side the carriage is supported by a number of ground wheels 82 which emerge behind the carriage, the top points being located approximately at the same level as the top side of the loading surface of the carriage. The carriage is furthermore provided with a winch 83 near the front end of the carriage.
  • the carriage thus equipped can be driven over the ready block mat until the wheels 82 are near one end of the block mat. Then a cable 85 wound off the reel winch 83 can be hooked to the end concerned of the mat.
  • the ready mat will be drawn over and across the wheels 82 onto the loading surface of the carriage 78, whilst it is simultaneously turned over so that the mat will lie on the carriage in a position in which the blocks are lying on top of the cloth, thus in the position in which the block mat will be deposited on the ground, for example, on the talus of a dike or the like.
  • the invention is, of course, not limited to blocks of square or rectangular cross-section.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Laminated Bodies (AREA)
EP83200622A 1983-05-02 1983-05-02 Procédé de fabrication d'un tapis de blocs Expired EP0123737B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8383200622T DE3375734D1 (en) 1983-05-02 1983-05-02 Method of manufacturing a block mat
EP83200622A EP0123737B1 (fr) 1983-05-02 1983-05-02 Procédé de fabrication d'un tapis de blocs
AT83200622T ATE32614T1 (de) 1983-05-02 1983-05-02 Verfahren zum herstellen einer steinmatte.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83200622A EP0123737B1 (fr) 1983-05-02 1983-05-02 Procédé de fabrication d'un tapis de blocs

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP86201245.7 Division-Into 1983-05-02
EP86201245A Division EP0206437A3 (fr) 1983-05-02 1983-05-02 Tapis de blocs comprenant des blocs en béton
EP86201244.0 Division-Into 1983-05-02

Publications (2)

Publication Number Publication Date
EP0123737A1 true EP0123737A1 (fr) 1984-11-07
EP0123737B1 EP0123737B1 (fr) 1988-02-24

Family

ID=8190952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200622A Expired EP0123737B1 (fr) 1983-05-02 1983-05-02 Procédé de fabrication d'un tapis de blocs

Country Status (3)

Country Link
EP (1) EP0123737B1 (fr)
AT (1) ATE32614T1 (fr)
DE (1) DE3375734D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385696A1 (es) * 2008-07-17 2012-07-30 Berenguer Ingenieros S.L. Pieza artificial para la formacion de mantos de proteccion de una o mas capas de los diques rompeolas y de las defensas de riberas costeras, lagunares y fluviales
WO2017165584A1 (fr) * 2016-03-23 2017-09-28 MOTZ, James, G. Système et procédé d'assemblage de tapis anti-érosion
US10814528B2 (en) 2016-02-19 2020-10-27 Motz Enterprises, Inc. Flexible mat forming system and method
US11097446B2 (en) 2019-06-13 2021-08-24 Motz Enterprises, Inc. System and method for making tied block mat with border
US11198231B2 (en) 2016-02-19 2021-12-14 Motz Enterprises, Inc. Process and system for making an erosion control mat
US11345065B2 (en) 2016-02-19 2022-05-31 Motz Enterprises, Inc. Flexible mat forming system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813450B (de) * Pilaar, Jan Carel, Warnsveld (Niederlande) Bodenbelag zum Schutz von Kultur ilächen od.dgl
FR2396633A1 (fr) * 1977-07-04 1979-02-02 Hoorn Betonfab Procede de fabrication d'une structure protectrice de fond flexible, notamment pour talus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211952A5 (fr) * 1972-12-26 1974-07-19 Morillon Corvol Courbot
FR2411269A1 (fr) * 1977-12-12 1979-07-06 Sotubema Sa Dispositif de fixation d'une dalle perforee sur une toile pour former un revetement anti-erosion de rives
NL8104983A (nl) * 1981-11-04 1983-06-01 Hoorn Betonfab Werkwijze voor het vervaardigen van een blokkemat.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813450B (de) * Pilaar, Jan Carel, Warnsveld (Niederlande) Bodenbelag zum Schutz von Kultur ilächen od.dgl
FR2396633A1 (fr) * 1977-07-04 1979-02-02 Hoorn Betonfab Procede de fabrication d'une structure protectrice de fond flexible, notamment pour talus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385696A1 (es) * 2008-07-17 2012-07-30 Berenguer Ingenieros S.L. Pieza artificial para la formacion de mantos de proteccion de una o mas capas de los diques rompeolas y de las defensas de riberas costeras, lagunares y fluviales
US10814528B2 (en) 2016-02-19 2020-10-27 Motz Enterprises, Inc. Flexible mat forming system and method
US11198231B2 (en) 2016-02-19 2021-12-14 Motz Enterprises, Inc. Process and system for making an erosion control mat
US11345065B2 (en) 2016-02-19 2022-05-31 Motz Enterprises, Inc. Flexible mat forming system and method
US11565446B2 (en) 2016-02-19 2023-01-31 Motz Enterprises, Inc. Hopper for a flexible mat forming system
WO2017165584A1 (fr) * 2016-03-23 2017-09-28 MOTZ, James, G. Système et procédé d'assemblage de tapis anti-érosion
US10161094B2 (en) 2016-03-23 2018-12-25 Motz Enterprises, Inc. Erosion-preventing laminate mat and assembly system
AU2017238225B2 (en) * 2016-03-23 2019-07-11 Motz Enterprises, Inc. System and method for assembling an erosion-preventing mat
USRE49482E1 (en) 2016-03-23 2023-04-04 Motz Enterprises, Inc. Erosion-preventing laminate mat and assembly system
US11097446B2 (en) 2019-06-13 2021-08-24 Motz Enterprises, Inc. System and method for making tied block mat with border

Also Published As

Publication number Publication date
EP0123737B1 (fr) 1988-02-24
DE3375734D1 (en) 1988-03-31
ATE32614T1 (de) 1988-03-15

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