EP2773824B1 - Boîte de brides de charge et dispositif d'ancrage - Google Patents

Boîte de brides de charge et dispositif d'ancrage Download PDF

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Publication number
EP2773824B1
EP2773824B1 EP12779069.9A EP12779069A EP2773824B1 EP 2773824 B1 EP2773824 B1 EP 2773824B1 EP 12779069 A EP12779069 A EP 12779069A EP 2773824 B1 EP2773824 B1 EP 2773824B1
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EP
European Patent Office
Prior art keywords
load loop
housing
anchoring
load
loop box
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.)
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Application number
EP12779069.9A
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German (de)
English (en)
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EP2773824A1 (fr
Inventor
Franz Müller
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Inventio AG
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Inventio AG
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Priority to EP12779069.9A priority Critical patent/EP2773824B1/fr
Publication of EP2773824A1 publication Critical patent/EP2773824A1/fr
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Publication of EP2773824B1 publication Critical patent/EP2773824B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E04G21/126—Reinforcement continuity box for cable loops
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus

Definitions

  • the invention relates to a load loop box according to claim 1, which is suitable for producing an anchoring device in a hoistway according to claim 11.
  • Anchoring devices are used to lift loads, such as persons, lifting and safety equipment or components of an elevator system, in the elevator shaft and / or fasten and / or secure, without installations of the elevator system must be performed in the elevator shaft final.
  • Such components of the elevator installation are, for example, an elevator car, a support element, a drive unit or guide rails which are not yet mounted in the elevator shaft at the beginning of an installation of the elevator installation.
  • various load loops or assembly anchors can be pre-installed during completion of the elevator shaft.
  • EP 2110486 shows an elevator assembly anchor for attaching shackles, hooks or ropes with at least one anchoring portion and a trailer portion in a recess body.
  • the attachment section is formed by a rod which extends through a wall of the recess body and forms an anchoring section outside this recess body.
  • the anchoring portion may also include a metal plate anchored within concrete. The disadvantage is that the anchoring sections are bulky and heavy or have a complicated structure and cause correspondingly high costs in manufacturing and assembly.
  • the object of the invention is therefore to provide a load loop box and an anchor device which does not have the aforementioned disadvantages and is also easier to handle.
  • the object is achieved by a load loop box according to claim 1, wherein the load loop box is intended for an elevator installation.
  • the object is also achieved by a method according to claim 11, for producing an anchor device of an elevator installation by means of a load loop box, wherein the load loop box is mounted on a formwork and is cast with Vergussbaumaterial.
  • the elevator anchoring device comprises a load loop and a recess in a formwork predefined surface of the cured potting material, the load loop consisting of a trailer section comprising two end sections disposed at its ends and two anchor sections adjacent the end sections, the trailer section being at least partially within the recess and a first of the two anchoring portions is disposed in the Vergussbaumaterial, wherein the end portions are wire rope pieces.
  • the invention is based on the finding that existing elevator assembly anchors are unwieldy and heavy. These disadvantages arise because anchoring sections extend far enough into the surrounding Vergussbaumaterial and also have to be sufficiently stable. Even with heavy loads on the load loop, it must be ensured that the anchoring section does not break out of the grouting material or come loose from the anchorage. It follows that such elevator assembly anchors are bulky and consequently difficult to transport. A high material requirement also causes a high price of this elevator assembly anchor.
  • the wire rope as the end section offers the possibility of making the load loop box small and simple. It follows that at a given casting height of Vergussbaumaterials on the formwork and thus cast in a load loop box with low spatial expansion more Vergussbaumaterial around the load loop is around. Accordingly, the stability of the Vergussbaumaterial is increased by this load loop. It is also advantageous that the anchoring sections the load loop to pick up the entire load attached to the load loop. Accordingly, the housing may be made of lightweight material having relatively low stability since the housing does not perform any other functions with an anchor device provided with this load loop box. The flexible load loop also allows diagonal pulls when lifting loads.
  • the load loop box or the anchor device comprises a second load loop, to which preferably an auxiliary load hook can be hung.
  • a further realization of this invention is that the load loop box arranged in the elevator shaft ceiling is usually far away from a walkable position, such as the floor of the floor of the upper floor. Because the suspension rope to be suspended in the load loop has a high weight, it is therefore difficult to hook this suspension cable into the load loop with the aid of an object bridging this distance by means of muscular force.
  • a second load loop of the load loop box allows an auxiliary rope, which can be connected by way of example to a pulley, to be suspended.
  • the auxiliary cable can have an auxiliary load hook, which is suitable for attaching the auxiliary cable to the second load loop.
  • the auxiliary rope to be hooked by means of muscular force to the second load loop has such a low weight that a hooking-in of the auxiliary rope is easily possible by means of muscular strength despite the distance mentioned.
  • the reason for this much lower weight of the auxiliary rope is that it is not intended to carry components of the elevator installation.
  • the auxiliary rope attached to the second load loop it is subsequently possible to lift the carrying cable in the vicinity of the first load loop to the elevator shaft ceiling. From this position, the support cable can be easily hung in the first load loop, because only a short piece of the support cable must be raised for this remaining step. The length of this short piece of the support cable is essentially determined by the distance of the first from the second load loop.
  • the second load loop may be sized to accommodate lower weight loads than the first load loop. Nevertheless, it could be so confusing the two load loops come. For example, although a high load heavy load intended for the first load loop might be erroneously hung on the second load loop, although it is designed only for lower weight loads. To exclude such confusion, the second load loop, which is intended for hanging the auxiliary rope, be equal to the first load loop dimensioned.
  • the housing has at least one auxiliary element, which is provided in use with fastening elements to fix the housing to the formwork.
  • the auxiliary element may be a guide hole for a nail or a guide thread for a screw or a surface, the surface being provided for coating with an adhesive.
  • the housing in each case has an anchoring area for the at least one load loop and starting from the open area serving as a base in the anchoring area, a first height.
  • the housing may also include a storage area for the load loop adjacent to the at least one anchoring area, wherein a portion of the attachment portion is storable in the storage area and portions of the appendage portion adjacent the end portions are located in the anchorage area and open from the base Surface starting in the storage area have a second height. It is advantageous that the anchoring area and the storage area can have different heights and so the anchoring sections can be maximally enclosed by a Vergussbaumaterial. A corresponding shape of the housing ultimately causes a required, but minimized recess in Vergussbaumaterial.
  • the first height of the anchoring area can advantageously be made relatively small, because the attachment section does not have to be arranged completely in the anchoring area and can be stored in the storage area. After removal of the formwork, it is possible that the trailer section is partly outside the anchoring area. Accordingly, no space in the inner cavity must be provided for attaching the load hook to the attachment portion of the load loop. A minimized height of the anchoring area is possible.
  • the casting height of the grouting material can be minimal with a minimum thickness of Vergussbaumaterialdecke being held.
  • the second height essentially corresponds to a height of the associated attachment section.
  • Such selected minimum heights of the storage area or the anchoring area allow a maximum height of Vergussbaumaterials above the storage area to ensure maximum stability of the Vergussbaumaterialdecke.
  • the housing includes a restraining means adjacent to the surface, which is arranged to hold the appendage section within the inner cavity.
  • a part of the restraint device is at least part of the edge of the housing. It is advantageous to save space because in this way the size of the inner cavity can be kept small.
  • the retaining device is fastened by means of snap closures or wedge closures on the remaining part of the housing or, according to a development which is not part of the invention, mounted in the inner cavity flap. It is advantageous that the retaining device can be solved very easily.
  • the retaining device has a pin with a spring length, wherein the pin is substantially formed on an engagement of the housing and facilitates removal of the retaining device with increasing spring length, wherein the pin is preferably formed by a material recess of the retaining device. In this way it can be determined which force is required for releasing the restraint device.
  • the restraint device has a Lasehe which is intended to release the retaining device after removal of the formwork by means of an auxiliary tool. It is advantageous that the formwork can be removed and at the same time the attachment section remains in the inner cavity. Thus, injuries in removing the formwork can be prevented, which can occur when the attachment portion protrudes from the inner cavity.
  • the auxiliary element is part of the retaining device and it is envisaged that with removal of the formwork, the retaining device is removed. It is advantageous that no additional work step is necessary to remove the retaining device.
  • a distance of the attachment section from the housing is dimensioned such that a load hook can be hooked into the load loop, the distance being aligned normal to the surface. It is advantageous that the attachment portion remains within the inner cavity and does not interfere with the open surface. Thus, loads in a room where loads are to be lifted by means of the load loop can be lifted up to an upper end of this room.
  • This distance of the appendage section to the housing can also be between 30 and 80 mm. In this range of the distance is guaranteed that a load hook can be easily hung.
  • the load loop is a wire rope piece or consists of a wire rope section.
  • the at least one wire rope pieces by twisting wires or strands on a twist, wherein the existing by stranding twisting in the range of at least one anchoring portion is repealed and the wires or strands are separated from each other and have in the axial direction of the wire rope section extending waves. It is advantageous that the surface of the individual wires or strands can be used to anchor the load loop in the surrounding Vergussbaumaterial. The separation of the wires or strands causes the Load loop is anchored directly in a larger volume of Vergussbaumaterials.
  • the anchoring sections of the load loop are connected to one another by a connecting element, wherein the anchoring sections preferably have an overlapping region in which the anchoring sections extend substantially parallel to one another and point in opposite directions.
  • an effective anchoring of the load loop can be achieved by the Vergussbaumaterial, which is located between the connecting element and the appendage section of the load loop and at the same time receives the forces acting on the load loop forces is loaded on pressure.
  • the connecting element can be enlarged in cross-section so that the connecting element in the Vergussbaumaterial at an angle to the profile of the end portions in the horizontal direction extends further than would be necessary for the mere connection of the end portions. This allows a better anchoring can be achieved.
  • a length of the connecting element along the end portions may also be optimized. With these cross-sectional enlargements can be effected that under full load, the load loop would not be torn from the Vergussbaumaterial, but the weakest point of an anchoring device made by means of this load loop box in the load loop itself, for example in the wire rope, can be found.
  • a stabilizing element is fixed to at least one of the wires or strands of an anchoring section such that a spreading of the wires or strands of this anchoring section is stabilized.
  • the recess has an anchoring area for the at least one load loop and in the anchoring area a first height starting from the predefined area and a storage area adjacent to the at least one anchoring area for the load loop and in the storage area a second height starting from the predefined area on, wherein a part of the appendage section in the storage area is storable and the second Height substantially corresponds to a height of the at least one mounted trailer section.
  • the at least one wire rope piece by twisting wires or strands a twist, wherein the existing by stranding twisting in the range of at least one anchoring portion is repealed and the wires or strands are separated from each other and in the axial direction of the wire rope piece extending waves. It is advantageous that the surface of the individual wires or strands can be used to anchor the load loop in the surrounding Vergussbaumaterial. The separation of the wires or strands causes the load loop is anchored directly in a larger volume of Vergussbaumaterials.
  • the anchoring sections of the load loop are connected to one another by a connecting element, wherein the anchoring sections preferably have an overlapping region in which the anchoring sections extend substantially parallel to one another and point in opposite directions.
  • an effective anchoring of the load loop can be achieved by the Vergussbaumaterial, which is located between the connecting element and the appendage section of the load loop and at the same time receives the forces acting on the load loop forces is loaded on pressure.
  • One of the load loop boxes shown is intended in a first step to be fixed on a formwork for the production of an elevator shaft ceiling.
  • the formwork and the load loop box fixed on it are the negative of this elevator shaft ceiling.
  • the elevator shaft ceiling is made of potting material, such as concrete.
  • fresh concrete is poured into the formwork. After hardening of the concrete, the formwork is removed. If a retaining device holds the attachment section in a storage area, this retention device is subsequently released.
  • the finished elevator shaft ceiling comprises an anchoring device produced by means of the load loop box.
  • the FIGS. 1 to 3 show different variants of a load loop box 4, which are suitable for installation in an elevator system.
  • the load loop box 4 comprises a housing 24 and a load loop 8.
  • the housing 24 has a wall 36 and has an at least partially open surface 32 which forms the base of the load loop box 4 and is provided for abutment with a formwork.
  • the housing 24 may for example consist of plastic or thin sheet with a low stability.
  • the surface 32 is bounded by an edge 38 of the housing 24.
  • the housing 24 and the surface 32 define an inner cavity 28.
  • the edge 38 of the housing 24 also serves as a sealing surface, which prevents Vergussbaumaterial when pouring onto the formwork penetrates into the inner cavity 28 of the fixed on the formwork load loop box.
  • the edge 38 of the housing 24 may be provided with a layer of sealing material, for example foam.
  • the load loop 8 can be used for example for hanging hooks, shackles, ropes, not shown.
  • the load loop 8 comprises a trailer portion 12 and two end portions 16, 18 adjacent the ends thereof which penetrate the wall 36 of the housing 24.
  • the end sections 16, 18 comprise two anchoring sections 20, 22 arranged at the two ends of the load loop 8.
  • the anchoring sections 20, 22 are arranged outside the inner cavity 28.
  • the load loop box 4 may comprise a second load loop 9, which may be constructed the same or similar to the load loop 8 and which may serve, for example, for hooking in an auxiliary load hook.
  • the end sections 16, 18 are wire rope pieces.
  • the entire load loop 8, 9 may consist of a wire rope piece or be a wire rope piece.
  • the inner cavity 28 comprises an anchoring area associated with each load loop 8, 9 60, 61.
  • Each of the anchoring areas 60, 61 of the load loop box 4 has a first height 70, 72 from the base 32.
  • the wire rope pieces, shown in the FIGS. 1 to 3 , 40 may be formed by stranding of individual wires. Instead of the wires 40 used, for example, strands can also be used. As a result of the stranding, the end sections 16, 18 have a twist 44 which is canceled in the region of the anchoring sections 20, 22. The wires 40 are thus separated from one another in the region of the anchoring sections 20, 22 and have shafts 52 extending in an axial direction 48 of the wire rope section. In addition, a stabilizing element 23 may be secured to at least one of the spaced apart wires 40 within the anchoring portion 20, 22. A spreading of the wires 40 can thus be reinforced and stabilized.
  • the stabilizing element 23 can be welded to the at least one wire 40 or pressed with it by way of example.
  • the twist 44 can also be canceled in the region of only one anchoring section 20, wherein the second of the two anchoring sections 22 of the load loop 8, 9 can comprise, for example, a metal plate.
  • FIGS. 1 to 3 shown variations of anchoring sections 20, 22 are provided to secure the load loop 8, 9 against tearing from hardened Vergussbaumaterial.
  • the orientation of the axis direction 48 to the surface 32 may be different depending on the requirements of the respective load loop box 4, so that, for example, a best possible anchoring of the load loops 8, 9 can be realized in the hardened Vergussbaumaterial.
  • FIG. 1 shows a load loop box 4 in longitudinal section.
  • the inner cavity 28 also includes a support portion 64.
  • the storage area 64 serves to store the attachment portions 12 during transport of the load loop box 4.
  • the load loop box 4 comprises a restraint device 76 which adjoins the surface 32 and through which the surface 32 can be at least partially closed.
  • Retainer 76 may be secured to the remainder of housing 24 by a wedge lock 86. Instead of the wedge closure, for example, a snap closure can be used.
  • the first height 70, 72 of the anchoring areas 60, 61 may be dimensioned in the minimum so that a maximum allowable bending of the load loop 8, 9 is not exceeded in a storage of the respective appendage section 12 in the storage area 64.
  • the maximum allowable bending of the load loop 8, 9 is exceeded when the load loop 8, 9 itself or other parts of the load loop box 4 are damaged by the bending of the load loop 8, 9.
  • the first height 72 may substantially correspond to a bending radius R72 of the attachment portion 12 of the load loop 8.
  • these attachment sections 12 can be stored one above the other.
  • the first height 70 corresponds to at least about a bending radius R70 of the appendage portion 12 of the load loop 9 plus a height which is additionally required for a storage of the appendage portion 12 of the load loop 8.
  • the anchoring area 60, 61 between the two end portions 16, 18 may have a lower height than the first height 70, 72 starting from the base serving surface 32, as in FIG. 3 is shown. This has the advantage that a larger amount of Vergussbaumaterial the anchoring sections 20, 22 surrounds. The anchoring sections 20, 22 are mounted more firmly in the Vergussbaumaterial. Thus, a minimum thickness of Vergussbaumaterialdecke can also be reduced.
  • the housing 24 has a second height 68 emanating from the surface 32 in the storage area 64.
  • the second height 68 corresponds to at least one height of the attachment sections 12 to be stored.
  • the appendage section 12 can be released from the storage area 64, so that the appendage section 12 is at least partially outside the inner cavity 28.
  • the first height 70, 72 may be sized, for example, higher, if a distance between the trailer section 12 and the housing 24 with a minimum masses dimensioned first height 70, 72 is not sufficient for hanging a load hook.
  • FIG. 1 Auxiliary elements shown in the form of guide holes 88 or guide threads 90, by means of which the load loop box 4 by means of fastening elements 94, such as nails or screws, can be fixed to the formwork.
  • FIG. 2 shows a further variant of a load loop box 4 in cross section.
  • the attachment portion 12 of the load loop 8, 9 is located in the inner cavity 28. In the embodiment shown here, therefore, no retaining device is necessary.
  • a normal to the surface 32 aligned distance 74 between the trailer section 12 and the housing 24 is dimensioned so that a load hook or auxiliary hook can be hooked into the load loop 8, 9. Depending on the size of the load hook or auxiliary load hook, this distance 74 is preferably between 30 and 80 mm.
  • FIG. 3 shows a third variant of a load loop box 4.
  • the anchoring portion 60, 61 have a height which can be distinguished from the first height 70, 72 in order to optimize the anchoring of the load loop 8, 9.
  • the anchoring sections 20, 22 are connected by a connecting element 27.
  • the connecting element 27 can be, for example, a compression sleeve, a metal casting or another form of cable end connection.
  • the ends of the anchoring portions 20, 22 may face in opposite directions and also form an overlapping area 25.
  • the two ends of the load loop 8, 9 or the overlapping region 25 are fixed by the connecting element 27 such that the load loop 8, 9 forms a closed curve.
  • the connecting element 27 can be designed such that in an anchoring device produced by means of this load loop box 4, the horizontal cross-sectional area of the connecting element 27 in the Vergussbaumaterial is greater than would be necessary for the mere connection of the two end portions 16, 18. Perpendicular to the orientation of the end portions 16, 18, the length of such a cross-sectional area to increase the anchoring stability in Vergussbaumaterial 30 to 100 mm, preferably 50 mm, amount. By means of this connecting element 27, the anchoring in the potting material can be improved as well. A length of the connecting element 27 may be dimensioned for this purpose or else for the purpose of securing the two end sections 16, 18.
  • FIGS. 4 to 6 show variants of a load loop box 4 with various restraint devices.
  • the load loop box 4 comprises a housing 24 with a rim 38.
  • the rim 38 defines an at least partially open surface 32.
  • the housing 24 and the surface 32 define an internal cavity 28. Shown are also two load loops 8, 9 appendage sections 12 of these load loops 8 9 are partially stored in a storage area 64.
  • the retainer 78 is integral with the rim 38 and thus constitutes at least part of the rim 38 of the housing 24.
  • the retainer 78 is secured to the remainder of the housing 24 by means of snaps 80.
  • an auxiliary tool for example a hook
  • the retaining device can be designed as a band surrounding the housing 24, which can be released by means of an auxiliary tool.
  • the housing 24 has at least one auxiliary element in the form of a guide hole 88 for use with a nail or similar fastener to fix the load loop box 4 on the formwork.
  • At least one guide thread 90 may be part of the housing 24.
  • FIG. 5 shows a further exemplary embodiment of a restraint device 76.
  • the restraint device 76 has auxiliary elements in the form of guide holes 88.
  • the rim 38 may also be configured to be part of the restraint 76.
  • the restraint 76 is removed.
  • the retainer 76 may be reinforced near the guide holes 88.
  • the auxiliary member may be embodied as a surface 92 which is coated with adhesive.
  • FIG. 6 shows a further exemplary embodiment of a retaining device.
  • the retaining device is designed as a flap 78.
  • the flap 78 is mounted in the inner cavity 28 and anchored there.
  • the flap 78 includes a tab 96 which can be actuated by means of an auxiliary tool for releasing the flap 78 from its anchorage.
  • the flap 78 may additionally be secured by means of snap or wedge closures on the remaining part of the housing 24.
  • the edge 38 may also be designed as an adhesive surface to attach the load loop box 4 on the formwork.
  • FIG. 7 shows an exemplary anchor device 150 of an elevator installation produced by means of a load loop box according to the invention.
  • the anchor device 150 comprises a recess 154 in a 158 predefined by formwork surface 32 'of an already hardened Vergussbaumaterials 162 and a load loop 8.
  • the load loop 8 can be used for example for hanging hooks 152, shackles, ropes.
  • the formwork 158 is indicated, although it is usually removed after curing of Vergussbaumaterials 162.
  • a further load loop 9 may be part of the anchor device 150, for example for suspending an auxiliary load hook.
  • the load loop 8, 9 comprises a trailer section 12 and two end sections 16, 18 adjoining the ends thereof.
  • the end sections 16, 18 comprise two anchoring sections 20, 22 arranged at the two ends of the load loop 8.
  • the anchoring sections 20, 22 are preferably arranged in the potting material .
  • Each load loop 8, 9 is assigned an anchoring area 60, 61 within the recess 154.
  • the recess 154 may also include a storage area 64, in which a part of at least one attachment portion 12 of the load loops 8, 9 can be stored.
  • the appendage section 12 is at least partially disposed within the recess 154.
  • An appendage section 12 may be disposed entirely within the recess 154 when the almost relaxed load loop 8 anchored in the potting material 162, 9 the surface 32 'does not penetrate. In this case, no storage area 64 is needed.
  • the anchoring sections 20, 22 are arranged in the Vergussbaumaterial 162.
  • the two end portions 16, 18 each consist of a wire rope piece, which have a twist 44 by stranding of wires 40 or strands. In the region of the anchoring sections 20, 22, the twist 44 existing by stranding is canceled. As a result, the wires 40 or strands are separated from each other and have shafts 52 extending in an axis direction 48 of the wire rope piece.
  • the load loop 8, 9 can also be made of a wire rope piece or consist of a wire rope piece.
  • twist 44 can also be canceled in the region of only one anchoring section 20, wherein the second of the two anchoring sections 22 of the load loop 8, 9 can comprise, for example, a metal plate. All mentioned variations of anchoring sections 20, 22 are realized so as to secure the load loop 8, 9 against tearing out of the grouting material 162.
  • the anchoring regions 60, 61 of the load loops 8, 9 each have a first height 70, 72 starting from the surface 32 '.
  • the storage area 64 has at least one starting from the surface 32 'second height 68, which substantially corresponds to a height of the storage area 64 to be stored in the attachment portions 12.
  • FIG. 8 shows a section of an edge 38 of the housing 24 with a retaining device 76, 78.
  • the retaining device 76, 78 has a pin 108 which is substantially formed on an engagement 110 of the housing 24.
  • the pin 108 may be formed by a recess 106, for example.
  • the retainer 76, 78 Upon removal of the retainer 76, 78, it is necessary for the retainer 76, 78 to be removable by a limited force. By way of example, this is necessary when a restraint device 76 is attached to the formwork by means of auxiliary elements and when the formwork is removed it is provided that the restraint device 76 itself be removed. By means of the pin 108 can be ensured so that the retention device 76 disengages from the remainder of the housing 24 before the formwork unexpectedly disengages from the retainer 76.
  • the pin 108 has a spring length 102 which may be pronounced by a lateral boundary 112 of the edge 38 of the housing 24. With the variation of this spring length 102, the necessary force can be influenced, which is provided for the release of the retaining device 76, 78 from the rest of the housing 24.
  • a spring length 102 ' which is increased in relation to the spring length 102, thus makes it possible to minimize the force required for the removal of the restraint device 76, 78.
  • the retention device 76, 78 may additionally include at least one barrier 104, such that the retention device 76, 78 can not be moved with respect to the remaining portion of the housing 24 grasping it. In this way it can be avoided, for example, that the restraint device 76, 78 falls out of the remaining part of the housing 24 or the spring length 102 is changed without intent during transport of the load loop box having the barrier 104.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Claims (11)

  1. Boîte de boucles de suspension (4), destinée à une installation d'ascenseur, la boîte de boucles de suspension (4) comportant :
    - une première boucle de suspension (8), constituée
    - d'un segment d'accrochage (12) et
    - de deux segments d'extrémité (16, 18) adjacents aux extrémités du segment d'accrochage (12), lesquels comportent deux segments d'ancrage (20, 22) placés sur les extrémités de la première boucle de suspension (8) et
    - un boîtier (24), lequel
    - forme une cavité intérieure (28) qui est prévue pour ranger le segment d'accrochage (12) et
    - comporte une surface (32) au moins partiellement ouverte, qui délimite la cavité intérieure (28) et qui pour sa part est délimitée par un bord (38) du boîtier (24), la surface (32) formant la base de la boîte de boucles de suspension (4) et étant prévue pour jouxter un coffrage,
    les segments d'extrémité (16, 18) traversant une paroi (36) du boîtier (24) et les segments d'ancrage (20, 22) étant placés à l'extérieur de la cavité intérieure (28), les segments d'extrémité (16, 18) étant des morceaux de câble métallique,
    le boîtier (24) comportant au moins un élément auxiliaire (88 ; 90 ; 92), qui en association avec des éléments de fixation (94) est prévu pour fixer la boîte de boucles de suspension (4) sur le coffrage, l'élément auxiliaire (88, 90, 92) étant de préférence un trou de guidage (88) pour un clou ou un taraudage de guidage (90) pour une vis ou une surface (92), la surface (92) étant prévue pour être revêtue d'un agent adhésif, le boîtier (24) comprenant un système de retenue (76 ; 78) jouxtant la surface (32) au moins partiellement ouverte qui est prévue pour maintenir le segment d'accrochage (12) à l'intérieur de la cavité intérieure (28), le dispositif de retenue (76, 78) représentant de préférence au moins une partie du bord (38) du boîtier (24), l'élément auxiliaire (88, 90, 92) étant une partie du dispositif de retenue (76), caractérisée en ce qu'il est prévu que le dispositif de retenue (76) soit retiré lors d'un retrait du coffrage.
  2. Boîte de boucles de suspension (4) selon la revendication 1, caractérisée en ce
    que le boîtier (24)
    - comporte respectivement une zone d'ancrage (60, 61) pour l'au moins une boucle de suspension (8, 9) et
    - en partant de la surface (32) servant de base, comporte une première hauteur (70, 72) dans la zone d'ancrage (60, 61).
  3. Boîte de boucles de suspension (4) selon la revendication 2, caractérisée en ce
    que le boîtier (24)
    comprend une zone de logement (64) pour la boucle de suspension (8, 9) jouxtant l'au moins une zone d'ancrage (60, 61), une partie du segment d'accrochage (12) pouvant être rangée dans la zone de logement (64) et dans la zone d'ancrage (60, 61) étant placées des parties du segment d'accrochage (12) qui jouxtent les segments d'extrémité (16), et
    - à partir de la surface (32) servant de base, comporte une deuxième hauteur (68) dans la zone de logement (64).
  4. Boîte de boucles de suspension (4) selon la revendication 3, caractérisée en ce
    que la première hauteur (70, 72) correspond sensiblement à un rayon de courbure (R) du segment d'accrochage (12) associé.
  5. Boîte de boucles de suspension (4) selon l'une quelconque des revendications précédentes, caractérisée en ce
    que le dispositif de retenue (76, 78) est fixé au moyen de fermetures par encliquetage (80 ; 84) ou de fermetures par clavettes (86) sur la partie restante du boîtier (24).
  6. Boîte de boucles de suspension (4) selon l'une quelconque des revendications précédentes, le dispositif de retenue (76, 78) comportant un tenon (108) avec une longueur de ressort (102, 102'), le tenon (108) étant façonné sensiblement sur un engagement (110) du boîtier (24) et facilitant un retrait du dispositif de retenue (76, 78) au fur et à mesure de l'accroissement de la longueur de ressort (102, 102'), le tenon (108) étant formé de préférence par un évidement de matière (106) du dispositif de retenue (76, 78).
  7. Boîte de boucles de suspension (4) selon la revendication 2, caractérisée en ce
    qu'une distance (74) du segment d'accrochage (12) par rapport au boîtier (24), la distance (74) étant orientée à la normale de la surface (32), est dimensionnée de telle sorte qu'un crochet de suspension puisse être accroché dans la boucle de suspension (8, 9), la distance (74) entre le segment d'accrochage (12) et le boîtier (24) étant de préférence comprise entre 30 et 80 mm.
  8. Boîte de boucles de suspension (4) selon l'une quelconque des revendications précédentes, caractérisée en ce
    que suite à un toronnage de fils métalliques (40) ou de torons, l'au moins un morceau de câble métallique comporte une torsion, une torsion (44) existante suite à un toronnage étant supprimée dans la région d'au moins un segment d'ancrage (20) et les fils métalliques (40) ou torons étant séparés les uns des autres et comportant des ondes (52) s'écoulant dans la direction axiale (48) du morceau de câble métallique, sur au moins l'un des fils métalliques (40) ou torons d'un segment d'ancrage (20, 22), un élément stabilisateur (23) étant fixé de préférence de telle sorte qu'une expansion des fils métalliques (40) ou torons dudit segment d'ancrage (20, 22) soit stabilisée.
  9. Boîte de boucles de suspension (4) selon l'une quelconque des revendications précédentes, caractérisée en ce
    que les segments d'ancrage (20, 22) de la boucle de suspension (8, 9) sont reliés ensemble à l'aide d'un élément de liaison (27), les segments d'ancrage (20, 22) comportant de préférence une région chevauchante (25) dans laquelle les segments d'ancrage (20, 22) s'écoulent sensiblement à la parallèle les uns des autres et sont dirigés dans des directions opposées.
  10. Boîte de boucles de suspension (4) selon l'une quelconque des revendications précédentes, caractérisée en ce
    que la boîte de boucles de suspension (4) comprend une deuxième boucle de suspension (9) pour l'accrochage d'un crochet de suspension auxiliaire.
  11. Procédé, destiné à fabriquer un dispositif d'ancrage (150) d'une installation d'ascenseur au moyen d'une boîte de boucles de suspension (4) selon les revendications 1 à 10, lors duquel on monte la boîte de boucles de suspension sur un coffrage et on la scelle à l'aide d'une matière de scellement.
EP12779069.9A 2011-10-31 2012-10-30 Boîte de brides de charge et dispositif d'ancrage Active EP2773824B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12779069.9A EP2773824B1 (fr) 2011-10-31 2012-10-30 Boîte de brides de charge et dispositif d'ancrage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11187287 2011-10-31
EP12779069.9A EP2773824B1 (fr) 2011-10-31 2012-10-30 Boîte de brides de charge et dispositif d'ancrage
PCT/EP2012/071477 WO2013064497A1 (fr) 2011-10-31 2012-10-30 Boîtier d'anneau de halage et dispositif d'ancrage

Publications (2)

Publication Number Publication Date
EP2773824A1 EP2773824A1 (fr) 2014-09-10
EP2773824B1 true EP2773824B1 (fr) 2018-12-05

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EP (1) EP2773824B1 (fr)
CN (2) CN103958802A (fr)
BR (1) BR112014009603B1 (fr)
WO (1) WO2013064497A1 (fr)

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EP3997285B1 (fr) * 2020-03-11 2023-07-26 Pfeifer Holding GmbH & Co. KG Dispositif de raccordement

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DE202018006826U1 (de) 2018-10-22 2023-06-19 Leviat GmbH Lastaufnahmevorrichtung
EP3643854A1 (fr) 2018-10-22 2020-04-29 HALFEN GmbH Dispositif de réception de charge
DE102020203108A1 (de) * 2020-03-11 2021-09-16 Pfeifer Holding Gmbh & Co. Kg Verbindungselement zum kraftschlüssigen Verbinden von Betonbauteilen
US11885143B2 (en) * 2020-07-31 2024-01-30 Harry A. Thompson Oval cover member for pre-cast concrete lift hook

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Also Published As

Publication number Publication date
CN103958802A (zh) 2014-07-30
BR112014009603B1 (pt) 2021-09-21
WO2013064497A1 (fr) 2013-05-10
EP2773824A1 (fr) 2014-09-10
CN107939049A (zh) 2018-04-20
BR112014009603A2 (pt) 2017-05-09

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