EP0091877A1 - Schalungsvorrichtung mit variablen Dimensionen - Google Patents

Schalungsvorrichtung mit variablen Dimensionen Download PDF

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Publication number
EP0091877A1
EP0091877A1 EP83440023A EP83440023A EP0091877A1 EP 0091877 A1 EP0091877 A1 EP 0091877A1 EP 83440023 A EP83440023 A EP 83440023A EP 83440023 A EP83440023 A EP 83440023A EP 0091877 A1 EP0091877 A1 EP 0091877A1
Authority
EP
European Patent Office
Prior art keywords
formwork
head
integral
hollow shaft
positioning
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Withdrawn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
EP83440023A
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English (en)
French (fr)
Inventor
Bernard Klein
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0091877A1 publication Critical patent/EP0091877A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article

Definitions

  • the invention relates to a formwork device with variable dimensions for the production of concrete elements manufactured in industrial installations using the principle of immediate formwork.
  • the problem posed to the concrete elements industry is essentially that of the dimensional variation of wall or floor elements in solid or honeycomb concrete panels. It is frequently necessary to vary the length of the elements for the realization of floors. This variation must be in the direction of the span to adapt the floor to the spacing of the load-bearing walls and where the support width has an important role.
  • a larger and fixed module allows, in general, an adaptation of the fact that the element can more or less encroach on the width of a chaining.
  • the heights are generally not very variable and, therefore, it is also possible to proceed by fixed modules.
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in the claims, solves the problem of creating a formwork device for making concrete elements whose width can be changed according to a certain module while the dimensions in the direction of the length can change at will according to very small variations of the order of a centimeter.
  • the advantages obtained thanks to this invention consist essentially in that the formwork is variable in length to adapt between the two rules constituting the formwork of the longitudinal edges of the concrete element and arranged at a spacing corresponding to the width modulation for a floor or at the height for a wall, the formwork head being able to be locked in the longitudinal direction in any position multiple of the order of a centimeter to obtain the chosen length.
  • Another essential advantage consists in that the variation in length, the setting up and the blocking of the formwork head takes place almost instantaneously without interrupting the manufacturing cycle and without slowing it down.
  • this formwork head can also serve as a support for a lighter formwork of little value remaining in contact with the concrete during the crystallization phase of the latter while said head is released at the end of the vibration.
  • the formwork device 1 has two longitudinal rules 2, 3 placed on the table or pallet 4. Between the two longitudinal rules 2, 3 is arranged at least one formwork head 5. To modify the width of the concrete element, moves one of the longitudinal rules 3 according to arrow F 1 to bring it closer or away from the other longitudinal rule 2. To modify the length of the concrete element, the formwork head 5 is moved in the direction of the arrow F2. Thus, it is necessary to provide means, on the one hand, for moving the formwork head 5 lengthwise and, on the other hand, for shrinking or lengthening this head depending on the transverse distance separating the two rules longitudinal 2, 3.
  • the latter the spacing of which is chosen as a function of the frame, comprise transverse holes 6, 7, 8, 9 ... equidistant from each other.
  • the distance between axes 10, 11 between two consecutive holes 6, 7 is relatively reduced by around fifteen centimeters corresponding to the half of the thirty centimeter frame, frame defined by certain standards.
  • the entr'axes 10, 11 constitute the module for the approach positioning of the formwork head 5.
  • These holes 6, 7, 8, 9 ... serve as anchoring and blocking means for the formwork heads 5 and allow modular approach positioning of these formwork heads 5.
  • these anchoring and blocking means are bosses 12, 13, 14, 15 projecting with respect to the internal edges 16, 17 of the longitudinal rules 2, 3.
  • the formwork head 5 is telescopic and consists of a first hollow tubular element 18 in which slides a second hollow tubular element 19.
  • these two tubular elements 18, 19 have a rectangular section, the short sides being arranged vertically.
  • the free end 28 of the latter and the free end 29 of the second tubular element 19 can therefore deviate or come closer.
  • the formwork table 5 has at its ends a stud 30, 31 cooperating with the holes 6 to 9 of the longitudinal rules 2, 3 for the modular positioning of approach of the formwork head 5.
  • the longitudinal rules 2, 3 include bosses 12 to 15, the studs 30, 31 are replaced by bores in which the bosses 12 to 15 are housed.
  • a lifter 32 moving vertically is provided.
  • This lifting beam 32 has at its lower part 33 of the lines 34, 35. These lines are attached to carriages 36 moving transversely relative to the length of the formwork, along the lifter 32.
  • the lower end 37, 38 of these lines 34, 35 comprises a pusher 39, 40 having the shape of a square.
  • These pushers 39, 40 cooperate with lights 41, 42 produced in the formwork head 5.
  • the length of these lights 41, 42 is slightly greater than the sum of the thickness 43 of the vertical wing 44 and the length of the horizontal wing 45.
  • the spacing and / or the bringing together of the two lines 34, 35 are ensured by a jack 46 arranged between the two lines 34, 35.
  • the clearance of the formwork head 5 is done as follows: it is considered that the concreting of a concrete element is finished.
  • the assembly formed by the lifter 32, the cylinder 46 and the lines 34, 35 is lowered so that the pushers 39, 40 pass through the openings 41, 42.
  • One acts on the cylinder 46 and the lines 34, 35 are brought closer. Therefore, the edge 47 of the vertical wing 44 pushes against one of the edges 48 of the slots 41, 42 and causes compression of the formwork head 5 by pushing the second tubular element 19 into the first. Consequently, the studs 30, 31 come out of the holes 6 to 9 of the longitudinal rules 2, 3.
  • the lifting beam 32 is raised and the horizontal wing 45 of the pushers 39, 40 comes to hang under the underside 49 of the edge of the lights 41, 42 and, therefore, the formwork head is raised 5.
  • the table 4 provided with the concrete element is released to set up the next table.
  • the lifter 32 is lowered until the studs 30, 31 are opposite the holes 6 to 9 of the longitudinal rules 2, 3. It acts on the jack 46 so that the lines 34, 35 move apart .
  • the other edge 50 of the vertical wing 44 pushes against the other edge 51 of the openings 41, 42 causing, by stretching the formwork head 5, the introduction of the studs 30, 31 into the corresponding holes 6 to 9.
  • the horizontal wing 45 of the pushers 39, 40 is no longer in contact with the lower face 49 of the edge of the lights 41, 42 and the pushers 39, 40 are located opposite the lights 41, 42. It suffices to raise the lifter assembly 32, cylinder 40 and lines 34, 35 to clear the space required for the concreting gantry.
  • a lighter formwork 52 (see FIGS. 4 and 5) inserted between the formwork head (s) 5 and the concrete element placed on the table 4 before the formwork head 5 is put in place.
  • This light formwork 52 comprises a square plate 53 whose vertical wing 54 has a profile 55 corresponding to the intended shape.
  • the horizontal wing 56 of this sheet 53 is provided with a guide 57 on which the first hollow element 18 rests.
  • a removable shim 58 is placed which must compensate for the difference in thickness between the two elements. hollow 18, 19.
  • the profile 55 comprises a sliding plate 59 due to the modification of the spacing between the two longitudinal rules 2, 3.
  • This light formwork 52 prevents deformation by sagging of the concrete due to immediate formwork and allows the concrete element to crystallize on its table 4.
  • the formwork head 5 also comprises means for progressive adjustment.
  • the formwork head 5 is traversed right through by a telescopic shaft 60 composed of a hollow shaft 61 integral with the second tubular element 19 and having a square section and a movable shaft 62 sliding in the hollow shaft 61 and disposed in the first tubular element 18.
  • This telescopic shaft 60 rotates three toothed pinions 63, 64, 65, a 63, 65 at each end of the formwork head 5 and the third 64 at the internal end 26 of the second tubular element 19.
  • the ends 66, 67 of this telescopic shaft 60 are provided with studs 30, 31.
  • the toothed pinions 63, 64, 65 mesh with racks 68, 69, 70 integral with the lower internal face 71, 72 of the two tubular elements 18, 19.
  • the cooperation of the pinions 63, 64, 65 and the racks 68, 69, 70 ensures the displacement of the studs 30, 31 relative to the formwork head 5.
  • the end li bre 28 of the first tubular element 18 has a flange 73 and has a horizontal lumen 74 traversed by the movable shaft 62.
  • the internal end 26 of the second tubular element 19 is also provided with a flange 75 in which is made a horizontal lumen 76 also traversed by the movable shaft 62.
  • the free end 29 of the second tubular element 19 comprises a flange 77 provided with a lumen 78 traversed by an axis 79 integral in rotation with the hollow shaft 61.
  • This axis 79 also passing through a bearing 80 integral with the flange 77, has at its end 81 an operating handle 82.
  • This operating handle 82 constitutes the second stud 31 cooperating with the holes 8, 9 of the longitudinal rule 3.
  • This operating handle 82 is subjected to traction from an elastic element 83 housed in the bearing 80.
  • the operating handle 82 comprises a disc 84 provided with a locking pin 85 urged by the elastic element 83 and coming into engagement ger in positioning holes 86, 87.
  • the operating handle 82 and the disc 84 slide on the movable shaft 62 but rotate integrally with it.
  • the locking pin 85 By pulling on the operating handle 82, the locking pin 85 is released, which frees the telescopic shaft 60 and allows its rotation.
  • the locking pin 85 describes a curve derived from the rolling cycloid of the toothed pinions 63, 64, 65 on the racks 68, 69, 70. It therefore suffices to provide the holes 86 in the flange 77, 87 corresponding to the interval chosen on this curve, for example of the order of a centimeter.
  • the telescopic shaft 60 moves parallel to the longitudinal axis 88 of the formwork head 5 in a stroke corresponding to the length of the lights 74, 76, 78, the latter annihilating any vertical movement of said shaft 60.
  • the elastic element 83 exerts traction on the disc 84 and the locking pin 85 can no longer leave the chosen positioning hole.
  • the progressive adjustment is made before the approach positioning.
  • any length becomes possible starting from an approach module, for example fifteen centimeters, and the blocking of all the intermediate positions from zero to fifteen centimeters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP83440023A 1982-04-08 1983-04-08 Schalungsvorrichtung mit variablen Dimensionen Withdrawn EP0091877A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8206316 1982-04-08
FR8206316A FR2524927A1 (fr) 1982-04-08 1982-04-08 Dispositif de coffrage a dimensions variables

Publications (1)

Publication Number Publication Date
EP0091877A1 true EP0091877A1 (de) 1983-10-19

Family

ID=9272975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83440023A Withdrawn EP0091877A1 (de) 1982-04-08 1983-04-08 Schalungsvorrichtung mit variablen Dimensionen

Country Status (2)

Country Link
EP (1) EP0091877A1 (de)
FR (1) FR2524927A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345916A (zh) * 2015-09-30 2016-02-24 苏州新协力特种工业模板有限公司 一种饼状模板
CN113001725A (zh) * 2021-03-03 2021-06-22 湖南科技大学 一种自动化调节尺寸的混凝土模具及其使用方法
CN114734524A (zh) * 2022-03-23 2022-07-12 中交一公局第四工程有限公司 一种预制护栏自动拆合模装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE186299C (de) *
US2732605A (en) * 1956-01-31 johnson
FR1307033A (fr) * 1961-11-27 1962-10-19 Moule pour la préfabrication de panneaux de construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE186299C (de) *
US2732605A (en) * 1956-01-31 johnson
FR1307033A (fr) * 1961-11-27 1962-10-19 Moule pour la préfabrication de panneaux de construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345916A (zh) * 2015-09-30 2016-02-24 苏州新协力特种工业模板有限公司 一种饼状模板
CN113001725A (zh) * 2021-03-03 2021-06-22 湖南科技大学 一种自动化调节尺寸的混凝土模具及其使用方法
CN114734524A (zh) * 2022-03-23 2022-07-12 中交一公局第四工程有限公司 一种预制护栏自动拆合模装置
CN114734524B (zh) * 2022-03-23 2022-12-02 中交一公局第四工程有限公司 一种预制护栏自动拆合模装置

Also Published As

Publication number Publication date
FR2524927A1 (fr) 1983-10-14
FR2524927B1 (de) 1984-06-15

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