EP0142529B1 - Selbstgetriebenes gerüst für bauwerke - Google Patents

Selbstgetriebenes gerüst für bauwerke Download PDF

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Publication number
EP0142529B1
EP0142529B1 EP84901800A EP84901800A EP0142529B1 EP 0142529 B1 EP0142529 B1 EP 0142529B1 EP 84901800 A EP84901800 A EP 84901800A EP 84901800 A EP84901800 A EP 84901800A EP 0142529 B1 EP0142529 B1 EP 0142529B1
Authority
EP
European Patent Office
Prior art keywords
scaffolding
clamping
building
jaws
rope
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.)
Expired
Application number
EP84901800A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0142529A1 (en
Inventor
Tibor Sinko
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.)
Kisuezemi Innovacios Iroda
Original Assignee
Kisuezemi Innovacios Iroda
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
Priority claimed from HU831343A external-priority patent/HU187037B/hu
Priority claimed from HU134483A external-priority patent/HU187038B/hu
Application filed by Kisuezemi Innovacios Iroda filed Critical Kisuezemi Innovacios Iroda
Priority to AT84901800T priority Critical patent/ATE25733T1/de
Publication of EP0142529A1 publication Critical patent/EP0142529A1/en
Application granted granted Critical
Publication of EP0142529B1 publication Critical patent/EP0142529B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
    • E04G11/24—Construction of lifting jacks or climbing rods for sliding forms
    • 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
    • E04G21/121—Construction of stressing jacks
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/246—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the inside contour of a building
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms

Definitions

  • the invention relates to a self-propelled scaffold for buildings provided with a closed outer cross-section in cross-section.
  • the self-propelled scaffold has a scaffold and a work floor formed on a horizontal console of the scaffold.
  • the other group of movable scaffolds includes the so-called supported scaffolds, which transfer their load to a steel structure that is independent of the structure to be machined. But this is one reason for many shortcomings.
  • the work floor is stiff, it does not follow the shape of the structure, neither in the vertical nor in the horizontal direction.
  • a supported scaffold is described in SU-A-918 407.
  • a climbing frame is also known from DE-B-2163 110, which is supported and movable on rails attached to the wall.
  • the invention has for its object to provide a self-propelled scaffold for buildings with a self-contained outline, no suspension structure, ceiling or console, and no support scaffold are required and with the help of which the building can be walked around its entire circumference and which can move around the building in a self-propelled manner.
  • the scaffolding must also comply with the load and safety regulations.
  • this object is achieved in that at least two jaws are assigned to the scaffolding, each of which is connected independently of one another via a detachable connection to an outer surface of the building and of which one jaw is fixedly attached to the scaffolding and the other jaws in each case via one its length changing element are connected to the first jaw and / or to one another.
  • such scaffolds according to the invention have proven successful, in which two jaws are assigned to a beam of the scaffolding parallel to the outer surface of the building and the one jaw is attached to the beam and the other jaw is slidably arranged on it, the two jaws being attached to his Length changing element are connected.
  • each jaw is provided with a sleeve receiving the beam of the scaffolding, a forced path through the clamping element and an adhesive surface touching the outer surface of the structure.
  • the positive path can be arranged inclined to the adhesive surface, the upper end of the positive path, which is closer to the upper part of the structure, being further away from the adhesive surface than the lower end.
  • the length-changing element can advantageously be designed as a pneumatic or hydraulic working cylinder.
  • each safety jaw can have a positive path through which the tensioning element passes and an adhesion that touches the outer surface of the building have area. It is furthermore advantageous if the positive path is inclined with respect to the adhesive surface, the upper end of the positive path closer to the upper part of the structure being closer to the adhesive surface than the lower end.
  • an inner work floor within the building is also desired, one can proceed according to the invention in such a way that a cantilever arm of a crane plant is connected to the beam of the scaffolding parallel to the outer surface, and an inner work floor is hung inside the building by means of the crane plant.
  • the inner work floor has a scaffolding and this has a plank, vibration-damping beams and fall preventers, the fall preventers being articulated to the scaffolding and connected to an inner surface of the structure via jaws each provided with an adhesive surface.
  • the inner work floor can also be operated with the crane.
  • the tensioning element can be a chain. However, it has proven to be more favorable if the tensioning element is a rope, preferably a wire rope.
  • At least one tensioning device connected to the changeable tensioning element is assigned.
  • the tensioning device can be a hydraulic or pneumatic rope tensioner.
  • a greater tensioning force can be exerted with a likewise known construction, in which a row of rollers is arranged on each of two axes and the rope is guided alternately over the rollers of one and the other axes.
  • the rope tensioning is done in that after tightening the rope, the distance between the two axes is increased, for. B. with the help of hydraulic working cylinders. This not only results in a relatively complicated and heavy construction, but also the speed of the rope increases with an increasing number of rolls, since these are so-called multiplier rolls.
  • two clamping units that can be moved relative to one another and that open and close in the opposite phase in the rope tensioner.
  • two clamping jaws are arranged opposite each other on both sides of the rope, the clamping jaws being moved relative to one another on an eccentric path during opening and closing by an eccentric mechanism.
  • the two clamping units are connected to one another via a linkage which also drives the eccentric mechanism. This ensures that the two clamping units are also moved relative to one another simultaneously with the actuation of the eccentric mechanism. In this way, the tensioner is moved on the rope, which takes one end of the rope with it and tensions the rope.
  • a further developed rope tensioner which is designed as a compact unit operated with pressure medium, inside which the two clamping units and a working cylinder moving them relative to one another are arranged, each of the clamping units with at least a clamping device and at least one working cylinder connected to the clamping device is provided.
  • the pressure medium can be hydraulic fluid or compressed air. It can furthermore be advantageous if piston rods of the working cylinders of the clamping units are connected to the clamping device, the piston rods and a piston rod of the working cylinder moving the clamping units being designed as tubular cable guides. It is easiest to provide the clamping device with clamping members guided on a conical surface.
  • the clamping members are designed as disks, each with a circumference adapted to the conical surface and with a bore whose diameter is larger than the cross section of the cable, the bores being every second Disc in the clamping device concentric to the longitudinal axis of the cable tensioner, and the bores of the other discs are designed with the same eccentricity to the longitudinal axis.
  • this embodiment of the self-propelled scaffolding according to the invention is arranged around a structure 1 provided with a self-contained outline, a chimney, water tower or the like.
  • the material of the building 1 can be monolithic concrete, masonry or the like.
  • the scaffold here has a triangular scaffolding, on the horizontal bracket 2 of which a plank 3 serving as a work floor is formed.
  • the entire scaffolding with the console 2 is connected - in a manner to be explained in more detail later - via a detachable connection to an outer surface 4 of the structure 1.
  • the scaffolding also has a bar 5 parallel to the outer surface 4 of the building 1 and a bracket 6 connecting the bracket 2 and the bar 5 along the triangular hypotenuse.
  • the scaffolding can of course also have a different shape, but it should have a horizontal bracket with the planking and a beam parallel to the outer surface of the building.
  • two jaws 7 are assigned to the scaffolding, namely the beam 5.
  • the jaws 7 are each connected independently of one another via a detachable connection to the outer surface 4 of the building 1.
  • Each jaw 7 has a sleeve 8 receiving the beam 5 and an adhesive surface 9 adjoining the outer surface.
  • One, here upper jaw 7 is fixed in place on the beam 5, the other, here lower jaw 7 being designed to be displaceable relative to the framework, here on the beam 5.
  • the upper jaw 7 is arranged at the upper end of the beam 5 and secured below it via a stop 10 against displacement.
  • the two jaws 7 are connected to an element that changes its length, here a hydraulic or pneumatic working cylinder 11.
  • a hydraulic or pneumatic working cylinder 11 instead of the working cylinder 11, other solutions, e.g. B. a threaded construction can be applied.
  • a positive path 12 through the jaw 7 is formed.
  • the tensioning element is a wire rope 13 which is guided around the structure 7 three times both in the upper jaws 7 and in the lower jaws 7.
  • the positive path 12 is arranged in both upper and lower jaws 7 inclined to the adhesive surface 9, in such a way that the upper end of the structure 1 closer to the upper end of the positive path 12 leading the wire rope 13 from the Adhesive surface 9 and in this way during operation also from the outer surface 4 of the structure 1 is further than the lower end of the forced track 12.
  • Rollers 14 which are parallel to the outer surface 4 of the scaffolding 4, are also assigned rollers, which are each pivotably mounted on the scaffolding at one of the two end regions of the beam 5.
  • FIG. 1 Another embodiment of the scaffold according to the invention is illustrated in FIG. 1 in the schematic cross section of the building 1.
  • the bar 5 is extended above the floor board 3 upwards.
  • One roller 14 is also arranged on this extended part of the beam 5, in a height-adjustable manner.
  • the brackets 2 and 6 of the working cylinder 11 between the two jaws 7 and the independent wire cables 13 are also evident.
  • the scaffolding is supplemented with hanging brackets 29 on which a further work floor or other device parts can be hung.
  • both jaws 7 and the working cylinder 11 connecting them of a further embodiment are illustrated on a larger scale.
  • both jaws 7 are arranged above the work floor and the upwardly extended beam 5 of the framework is suspended from the lower jaw 7.
  • FIG. 5 A similar embodiment is shown in FIG. 5.
  • the scaffolding is hung below the floorboard 3 of the work floor on the lower jaws 7, which are arranged together with the working cylinder 11 and the upper jaws 7 above the floorboard.
  • three independent wire ropes 13 are used both on the lower jaws 7 and on the upper jaws 7, each of which is tightened via a rope tensioner 15.
  • a ladder and its safety basket are indicated at 17.
  • Such objects located on the outer surface 4 of the structure 1 form an obstacle to the continuation of the wire rope 13, so that they are to be avoided.
  • a pick-up arranged in the cable passage is used, which is designed as a box girder.
  • the flanges 18 of the upper and lower cable passages can be connected to one another in pairs via a working cylinder and they can also have rollers on the outer surface 4 for easier movement.
  • the wire ropes 13 are interrupted at these wafers 18 and the ends of the wire ropes 13 are fastened to the wafers 18 on both sides thereof.
  • the Auspf short section 18 transmit the load from one side to the other by avoiding the obstacle located on the outer surface 4.
  • Safety jaws 16 are also switched on in the cable passages, which are also pressed against the outer surface 4 of the building 1 by means of clamping elements. These safety jaws 16 serve as fall prevention equipment for the whole scaffold.
  • Each safety jaw 16 has a positive path 12 which carries out the tensioning element formed here as a wire rope 13 and an adhesive surface 9 touching the outer surface 4.
  • the forced track 12 is also inclined here; on the safety jaws 16, however, it is designed such that its upper end, which is closer to the upper part of the structure 1, is closer to the adhesive surface 9 and thus to the outer surface 4 than the lower end of the forced track 12.
  • the scaffold according to the invention works as follows.
  • the two upper and lower jaws 7 of the scaffold are arranged independently of one another via a detachable connection on the outer surface 4 of the structure.
  • This releasable connection is created by friction and the normal force required for this (the force perpendicular to the friction surface) is generated by the wire rope 13 serving as the tensioning element.
  • the independent wire ropes 13 and the rope tensioners 15 are used to detach the connection and to make the connections independent of one another. In the starting position, all rope tensioners 15 are closed and all wire ropes 13 are tightened.
  • the scaffold is held in position on the structure 1, since the existing friction between the adhesive surfaces 9 of the jaws 7 and the outer surface of the structure 1 means that movement of the scaffold is not possible. The friction namely prevents the jaws 7 from shifting on the outer surface 4 of the structure 1.
  • the formation of the normal force required to generate the friction is also promoted by the formation of the positive tracks 12. If, due to the load acting on the scaffold, the scaffold should slide down, the wire ropes 13 on the positive track 12 of the jaws 7 also slide down, their distance from the outer surface 4 becoming larger and larger and of an ever larger diameter. As a result, the tensile force in the wire rope 13 and thus the normal force between the adhesive surface 9 and the outer surface 4 become ever greater, which increases the friction. This will stop the scaffolding from slipping.
  • the releasable connection of the upper jaws 7 is first released by releasing the cable tensioner 15 of the upper wire cables 13.
  • the working cylinders 11 are actuated, their pistons disengaged, and their lengths increased. Since the connection between the lower jaws 7 and the outer surface 4 is maintained, the entire frame moves upwards, the rollers 14 supporting the frame on the outer surface 4.
  • the upper wire cables 13 are tightened again by means of their cable tensioner 15 and the connection between the scaffold and the structure 1 is restored.
  • the lower wire cables 13 are loosened in a similar manner by opening the cable tensioner 15 and thereby the connection of the lower jaws 7 is released.
  • the working cylinders 11 are actuated again, the pistons retracted, the length of the working cylinders is shortened, as a result of which the lower jaws 7 move upward, but the entire scaffold remains stationary relative to the structure.
  • the lower wire cables 13 are tightened again by means of the cable tensioner 15 and the connection between the jaws 7 and the outer surface 4 is restored produced. If the desired working height has not yet been reached, this cycle can be repeated as often as required. the process can be started with the lower jaws 7 instead of the upper jaws 7.
  • FIGS. 3, 4 and 5 function in a very similar manner, with the exception that the frame is moved when the lower jaws 7 are moved, since it is connected to the lower jaws 7.
  • the safety jaws 16 which are also arranged on the wire cables 13, also exert their effect through friction between their adhesive surfaces 9 and the outer surface 4. If the scaffold slides down, the wire ropes 13 are also forced downward, whereby they likewise slide downward on the forced path of the safety jaws 16. However, they get further and further away from the outer surface 4 to an ever larger diameter, the tensile force in the wire cables 13 and thus the normal force between the adhesive surfaces 9 and the outer surface 4 become ever greater, the fall is prevented. It is advantageous if the planks of the plank 3 are not rigid with one another and with the horizontal brackets 2, but rather are connected in a way that enables a certain movement.
  • a flexible bolt 26 is proposed, which is shown in section in FIG. 7.
  • a flexible wire rope 23 is arranged between its end part 25 and the head part 24.
  • the bolts 26 are inserted from above into the holes in the planks or the consoles 2 and secured at the bottom to a bore 27 in the end part 25.
  • an inner work floor can also be formed inside the building 1 with the aid of the self-propelled scaffold according to the invention.
  • FIG. 3 wherein - as already mentioned - the beam 5 above the floor board 3 is extended upwards.
  • a jib arm 19 of a crane plant is attached to this extended beam 5.
  • the scaffolding has anti-vibration bars to which fall preventers 21 are connected.
  • the fall preventers 21 themselves are also elements suitable for changing the length, which are pressed against the inner surface 28 after the inner work floor 20 has been positioned at a suitable height inside the building 1. If for any reason the connection between the outer work floor and the inner work floor 20 were interrupted, the fall preventers 21 pressed against the inner surface 28 would prevent the inner work floor 20 from falling.
  • One or more of the crane works attached to the beams 5 can be used to operate the inner work floor 20.
  • the rope tensioners 15 play a crucial role when using the scaffolding according to the invention.
  • a rope tensioner has been developed, the embodiment of which is shown in schematic section in FIG. 8.
  • the cable tensioner 15 has two clamping units 101 and 102 and between them a working cylinder 103 that changes its length.
  • Each of the clamping units 101 and 102 is provided with a clamping device 104, to which two working cylinders 105 and 106 are connected.
  • the clamping device 104 is provided with clamping members guided on a conical surface 107.
  • the conical surface 107 is formed in a clamping block 108, to which the working cylinders 105 and 106 are also connected via cylinder covers 109 and 110.
  • An ear 11 is also attached to the clamp 108, with which the rope to be tensioned is connected.
  • the clamping members are designed as disks 112 and 113, each of which has a circumference adapted to the conical surface 107 and a bore, the diameter of the bores being at least not less than the diameter of the rope to be tensioned.
  • the bores are eccentric with respect to the center of the washers 112, or in the case of installed washers 112 with respect to the central axis of the cable tensioner. This eccentricity is the same for all disks 112.
  • the bores in the disks 113 are arranged concentrically both to their center points and to the center axis.
  • the clamping devices 104 are assembled in such a way that a disk 113 with a concentric bore is arranged next to each disk 112 with an eccentric bore, so that the disks 112 and the disks 113 are alternately arranged next to one another.
  • the two disks 112 and 113 can also be manufactured with a different eccentricity of the bores. They also do not have to be arranged alternately. In practice, however, the embodiment described above has proven itself best.
  • the working cylinders 105 and 106 each have one on the cylinder cover 109 and 110, respectively closed cylinder 114 and 115 and therein a piston 116 and 117 respectively.
  • the pistons 116, 117 are each attached to a piston rod 118 and 119, which are tubular. Their inside diameter is at least as large as the outside diameter of the rope to be tensioned.
  • the working cylinder 103 which moves the two clamping units 1 and 2 relative to one another, is connected to the working cylinder 106 of the clamping unit 101 and to the working cylinder 105 of the clamping unit 102.
  • the other cylinder cover 120 of the working cylinder 106 is fastened to the cylinder cover 121 of the working cylinder 103.
  • a cylinder 122 and a second cylinder cover 123 are connected to the cylinder cover 121.
  • This cylinder cover 123 has an extended jacket part 124, which telescopically accommodates the upper cylinder cover 125 of the working cylinder 105, which is also extended for this purpose.
  • the piston 126 of the working cylinder 103 is arranged in the cylinder 122, the piston rod 127 also being tubular.
  • the cylinder cover 125 of the working cylinder 105 of the clamping unit 102 is connected to the piston rod 127, in this example via an insert.
  • the piston rod 127 is also designed such that it extends into the tubular piston rod 119 of the working cylinder 106 of the clamping unit 101 or into the piston rod 118 of the working cylinder 105 of the clamping unit 102.
  • the piston rod 127 is of such a length that it can never completely escape from the piston rods 118, 119.
  • piston rods 118, 119 and 127 are thus connected to each other telescopically, the piston rod 127 can slide in the piston rods 118 and 119.
  • the working cylinder 105 of the clamping unit 101 and the working cylinder 106 of the clamping unit 102 are each closed off from the outside with a cylinder cover 129, 130, which are provided with a guide piece at each end of the cable tensioner.
  • the working cylinders 103, 105 and 106 are furthermore provided with the pipe medium 132 and 133, 134 and 135, as well as 136 and 137, which is required for the alternating movement of their pistons 116, 117 and 126.
  • One of the two pipe sockets of each working cylinder is connected via a branch, the other pipe socket via a different branch of a line 138 to a pressure medium source, not shown.
  • the pipe sockets 133, 135 and 137 are under pressure and the others are connected to the atmosphere.
  • the two clamping units 101 and 102 can be closed, which enables the rope to be held securely.
  • the clamping units 101 and 102 operate in the following way.
  • the working cylinder 105 arranged on one side of the clamping device has the task of opening the clamping device 104 and the other working cylinder 106 closing it.
  • the clamping device 104 of the clamping unit 101 is in the closed state, i. H. the piston rod 119 of the working cylinder 106 acts on the disks 113 with the largest diameter.
  • the disks 112 and 113 were displaced on the conical surface 107, the disks 112 provided with eccentric bores being pressed into the rope to be tensioned.
  • the pressure medium is applied to the socket 135 of the working cylinder 106 and to the socket 133 of the working cylinder 105.
  • the clamping device 104 of the clamping device 102 is in the open state.
  • the working cylinder 105 exerts an effect on the uppermost disk 113 by switching off the pressure from the nozzles 133 and 135 and applying it to the nozzles 132 and 134.
  • the pistons 116 and 117 of the working cylinders 105 and 106 together with the disks 112 and 113 move downward in the figure, the disks touching the ever larger diameter of the conical surface 107 with their circumference.
  • the disks 112 with eccentric holes leave the rope so that it can be moved freely in the clamping device 104. This state is shown for the clamping device 104 of the clamping unit 102.
  • the Klemmeinhe i th 101 and 102 closed from one another and are open in opposite phase. If the clamping unit 101 holds the rope during operation, the clamping unit 102 releases it. In the meantime, the two clamping units 101 and 102 are moved relative to one another by the working cylinder 103. This creates an exciting movement of the rope tensioner.
  • the clamping unit 101 is opened and at the same time the clamping unit 102 is closed and the piston 126 of the working cylinder 103 is moved downward.
  • the entire rope tensioner becomes longer, the cylinder cover 126 slides out of the jacket part 124.
  • FIG. 9 is another embodiment of the Rope tensioners shown.
  • the gluing units 101 and 102 and the working cylinder 103 are also present between them.
  • clamping jaws 141 are provided in the clamping devices 104 of the clamping units 101, 102, which, like in a chuck, are also guided in a rotationally fixed manner on the conical surface 107 of the clamping block 108.
  • the three clamping jaws 141 used in this example are arranged offset in the clamping block 108 by 120 ° with respect to one another.
  • the conical surface 107 which straightly guides the clamping jaws 141 can be formed from cylindrical partial surfaces which are inclined towards the longitudinal axis of the cable tensioner, the outer peripheral surfaces of the clamping jaws 141 contacting these partial surfaces also being cylindrical.
  • the inner clamping surfaces of the clamping jaws 141 can be corrugated. Other embodiments for the jaws 141 are also conceivable.
  • Only one working cylinder 142 is connected to the clamping units 101 and 102 in each case, and it alone accomplishes the opening and closing of the clamping devices 104.
  • a cylinder cover 143 of the working cylinder 142 is connected to the clamping block 108, its other cylinder cover 144 to an upper cylinder cover 145 of the working cylinder 103 in the figure.
  • the cylinder 146 of the working cylinder 142 is fastened between the cylinder covers 143 and 144, in which a piston 147 and a piston rod 148 fastened thereon are arranged movably.
  • the clamping jaws 141 of the clamping device 104 are assigned to the piston rod 148 in a manner that transmits both the compressive force and the tensile force via a pawl member 149.
  • a cylinder 150 and a cylinder cover 151 are connected to a cylinder cover 145 of the working cylinder 103.
  • the clamping block 108 is provided with an extension 152 which extends telescopically 151 into an extended jacket part 154 of the cylinder cover.
  • the piston 153 of the working cylinder 103 also has a tubular piston rod 155, which extends telescopically into the piston rod 148 of the working cylinder 142 on the one hand, and is attached to the extension 152 coupled to the clamping block 108 of the clamping device 104 of the clamping unit 102.
  • the working cylinders 103, 142 have ports 156 and 157 or 158 and 159 as the inlet and outlet of the pressure medium.
  • the clamping jaws 141 have to be moved upwards in the figure with the aid of the piston 147 or the piston rod 148 by the pressure force transferred with the latching member 149, the clamping jaws 141 sliding on the conical surface 107 gradually becoming smaller and smaller , close and press against the rope.
  • the pressure medium is passed through the nozzle 156 into the working cylinder 142.
  • the pressure on the connector 157 is released and the pressure medium is passed through the connector 156 above the piston 147, which thereby moves downward.
  • the clamping jaws 149 are pulled downward, which reach ever larger diameters on the conical surface 107 and thereby release the rope.
  • the cable tensioner 15 itself functions in this embodiment as described in connection with FIG. 8.
  • the clamping units 101, 102 which are opened or closed in the opposite phase, are moved relative to one another by the pressure medium guided under or over the piston 153 of the working cylinder 103, the extension 152 and thereby the clamping unit 102 being moved from the piston rod 155 into the casing 154 of the cylinder cover 151 pulled in or pushed out of it.
  • the rope tensioner is constructed as a compact unit in both embodiments.
  • the pressure medium can be either a hydraulic fluid or compressed air or even both.
  • hydraulic in the second pneumatic working cylinders are to be used.
  • the supply of such working cylinders with print media and the logic circuits required for their operation are such modern knowledge that pose no problem for the average person skilled in the art. A more detailed description of these questions is therefore not required here.
  • the embodiment from FIG. 1 can be operated particularly cheaply with ropes made of plastic. Such plastic ropes are used in water or in an aggressive environment.
  • the embodiment according to FIG. 2 has proven to be particularly advantageous for wire ropes, since the clamping jaws 141 do not damage the wire rope. This embodiment is preferred for routine tasks because of its simple structure.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Movable Scaffolding (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
EP84901800A 1983-04-19 1984-04-19 Selbstgetriebenes gerüst für bauwerke Expired EP0142529B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84901800T ATE25733T1 (de) 1983-04-19 1984-04-19 Selbstgetriebenes geruest fuer bauwerke.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
HU831343A HU187037B (en) 1983-04-19 1983-04-19 Rope-stretching device
HU134483A HU187038B (hu) 1983-04-19 1983-04-19 Eljárás magas műtárgy építésére és/vagy karbantartására, valamint önjáró állványzat
HU134383 1983-04-19
HU134483 1983-04-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP86108726A Division EP0202691A3 (de) 1983-04-19 1984-04-19 Seilspanner
EP86108726.0 Division-Into 1986-06-26

Publications (2)

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EP0142529A1 EP0142529A1 (en) 1985-05-29
EP0142529B1 true EP0142529B1 (de) 1987-03-04

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EP84901800A Expired EP0142529B1 (de) 1983-04-19 1984-04-19 Selbstgetriebenes gerüst für bauwerke

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US (1) US4694933A (da)
EP (1) EP0142529B1 (da)
DE (1) DE3462531D1 (da)
DK (1) DK153023C (da)
FI (1) FI844978A0 (da)
SU (1) SU1449022A3 (da)
WO (1) WO1984004127A1 (da)

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GB2257740A (en) * 1991-07-15 1993-01-20 * Good Gold Limited Self-climbing exterior scaffolding system
EA201100073A1 (ru) * 2008-06-23 2011-10-31 Интеллиджент Тауер Солюшнс Апс Платформа, в частности внутренняя платформа для трубчатой башни
US9493957B2 (en) 2011-10-24 2016-11-15 The Gsi Group Llc Catwalk for a grain bin or the like and a plank used in the construction thereof
US20130284538A1 (en) 2012-04-30 2013-10-31 Roger Dale Hanner Stabilized, collapsible portable support platform
AU2015212355B2 (en) * 2014-01-31 2019-05-16 Gregory John Neighbours A concrete tower and related formwork and related method of construction
CN104030200A (zh) * 2014-06-09 2014-09-10 韩景伟 烟囱拆除升降机
CN104032943A (zh) * 2014-06-20 2014-09-10 山东电力建设第一工程公司 液压提升伸缩式平台装置
DE102016205956A1 (de) * 2016-04-08 2017-10-12 Peri Gmbh Selbstklettersystem, Selbstklettereinheit sowie Verfahren zum Umsetzen einer solchen Selbstklettereinheit an einem Betonbaukörper
DE102016125549A1 (de) * 2016-12-23 2018-06-28 Tries Gmbh & Co. Kg Klettervorrichtung mit einer Kletterschiene
US11536039B2 (en) 2017-12-08 2022-12-27 Seaway Painting, L.L.C. Tower apparatus
CN109162438B (zh) * 2018-10-11 2023-10-13 上海建工一建集团有限公司 用于阶梯变形核心筒的钢平台系统及施工方法
CN114412166A (zh) * 2022-01-06 2022-04-29 上海二十冶建设有限公司 一种整体移动式现浇混凝土屋面模板支架及其使用方法

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Also Published As

Publication number Publication date
US4694933A (en) 1987-09-22
WO1984004127A1 (en) 1984-10-25
EP0142529A1 (en) 1985-05-29
DK153023B (da) 1988-06-06
SU1449022A3 (ru) 1988-12-30
FI844978L (fi) 1984-12-17
DK608284A (da) 1984-12-18
FI844978A0 (fi) 1984-12-17
DK153023C (da) 1988-10-17
DK608284D0 (da) 1984-12-18
DE3462531D1 (en) 1987-04-09

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