EP0230542A1 - Verfahren und Vorrichtung zum Einbringen und Einbetonieren eines Verankerungsbolzens in ein Betonteil - Google Patents

Verfahren und Vorrichtung zum Einbringen und Einbetonieren eines Verankerungsbolzens in ein Betonteil Download PDF

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Publication number
EP0230542A1
EP0230542A1 EP86116159A EP86116159A EP0230542A1 EP 0230542 A1 EP0230542 A1 EP 0230542A1 EP 86116159 A EP86116159 A EP 86116159A EP 86116159 A EP86116159 A EP 86116159A EP 0230542 A1 EP0230542 A1 EP 0230542A1
Authority
EP
European Patent Office
Prior art keywords
anchoring
guide
anchoring bolt
head part
guide tube
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Withdrawn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
EP86116159A
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German (de)
English (en)
French (fr)
Inventor
Richard Kraiss
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.)
Georg Prinzing & Co KG Betonformen- und Maschinenfabrik GmbH
Original Assignee
Georg Prinzing & Co KG Betonformen- und Maschinenfabrik GmbH
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 Georg Prinzing & Co KG Betonformen- und Maschinenfabrik GmbH filed Critical Georg Prinzing & Co KG Betonformen- und Maschinenfabrik GmbH
Publication of EP0230542A1 publication Critical patent/EP0230542A1/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Withdrawn legal-status Critical Current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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
    • 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 method of the type mentioned in the preamble of claims 1 and 2.
  • anchoring bolt is generally understood to mean elongated anchors which can have different cross sections and cross-sectional shapes, for example polygonal in cross section, for example square or rectangular, strip-shaped anchoring bolts as well as for example round ones.
  • Anchoring bolts are known which have the anchoring head at one end and the holding head at the other end, which is designed, for example, as a spherical head.
  • Anchor bolts of this type encounter difficulties when they are to be introduced into concrete parts with reproducible accuracy and a high number of cycles during mass production, in particular automatic production.
  • two roughly hemispherical parts are required, for example, which have to be opened for demoulding after shaping.
  • Another possibility is to use recess bodies with a cone made of steel, which initially remain in the finished concrete part and only afterwards from Hand have to be removed, which is relatively cumbersome.
  • the invention has for its object to provide a method of the type mentioned in the preamble of claims 1 and 2, which is suitable for anchoring bolts of any cross-sectional shape for fully automatic introduction into concrete parts in mass production and allows a quick, easy and trouble-free introduction of these.
  • the invention has the following advantages. A reproducible, precisely positioned alignment, centering, mounting and insertion of anchoring bolts is achieved.
  • the anchoring bolts are brought into the desired position by shaking and held and tightened in this position before filling the mold with concrete and compacting it.
  • concrete is first poured in and compacted by shaking, and the anchoring bolt is inserted and pressed into the concrete only in the course of the second shaking and pre-pressing process and then fully concreted and fully embedded in the concrete due to the continuing compacting process.
  • Both methods according to the invention reproducibly enable the cemented anchoring bolts to be permanently and securely seated. This also results in a homogeneous concrete structure of the same type as in other areas of the concrete part in the area around the concreted-in anchoring bolt, so that there is no weakening or inferiority of the concrete part here.
  • the anchoring bolts can be made on the basis of the method according to the invention bring it fully automatically into a mass production and with consistently good, reproducible results.
  • the invention further relates to a device for inserting and concreting an anchoring bolt according to the preamble of claim 5. It is a further object of the invention to provide a device of this type which has only a few components and is therefore simple, light and inexpensive, furthermore is as compact as possible and takes up little space, is also as low-maintenance or even maintenance-free as possible and also has as few moving elements and, in everything possible, in the fully automatic process allows the insertion of anchoring bolts in mass production in concrete parts with consistently good results. In everything, the device should work as trouble-free as possible and be insensitive to the influences of the concrete from the concrete form.
  • the device has few parts and is therefore simple, light and inexpensive. It is compact and therefore takes up little space. Furthermore, the device is at least low-maintenance. It has only two or, if necessary, three functions which are easy to detect in terms of control technology as translation movements and are accordingly easy to control. Above all, the device allows fully automatic operation with fully automatic insertion of the anchoring bolts into all possible forms of concrete parts that can be mass-produced.
  • the front head part of the device closes the concrete form from the outside and towards the device in the advanced state, so that no concrete or the like can escape to the outside and contaminate the environment, in particular the device, and could impair their trouble-free operation.
  • the inner guide hole is closed and sealed by the anchoring bolt itself, so that no concrete can penetrate outside and into the device.
  • the device can work in simple push mode, which is particularly simple and inexpensive.
  • the device enables both a clockwise insertion of anchoring bolts by hand and an automatic feeding of anchoring bolts from a magazine, which eliminates the need for fully automatic insertion of Anchoring bolt in mass production is still met.
  • the device takes up little space, so that it does not impair the possible uses of the concrete molds equipped with it. Rather, the possible uses on, for example, pipe and shaft ring machines are significantly increased.
  • the few functions of the device and in particular its vibration-proof design so that the individual elements of the device are functionally reliable in the long term and are not subjected to any additional wear during the vibration pressing process.
  • the device acts as a rigid unit that is practically firmly connected to the mold, as a result of which these parts of the device also transmit the vibrating forces to the concrete poured into the mold and therefore also in the vicinity of the front head part and the anchoring bolts within the mold space results in an even, good and homogeneous structure.
  • the head part of the anchoring bolts in an advantageous further development has a somewhat smaller external dimension than the guide part, there is more play in this area after loosening the tensioning device of the device and any any risk that an anchoring bolt previously concreted into the concrete part is pulled out when the device is pulled back.
  • the device allows trouble-free and absolutely smooth operation.
  • An anchoring bolt designed in this way is extremely inexpensive to manufacture, e.g. as a stamped part or similar, and therefore cheap and otherwise compact. It is particularly well suited for the automatic insertion from a magazine, since it is ideally stackable in a magazine shaft and can be inserted into the feed of the device. Further advantageous features of this result from claims 34 to 43.
  • the device is designed to be particularly simple and space-saving, light and inexpensive. It also has only a few functions with regard to the control of the magazine, so that the control and operation are particularly simple. It goes without saying that the device enables both a procedure according to claim 1 and one according to claim .2, in which the anchoring bolts are pressed into the concrete during the shaking process. The functions of this latter procedure are particularly simple.
  • the anchoring bolt 11 has an anchoring section 11 with an end-side, thickened, in particular approximately plate-shaped, anchoring head 13 and also an adjoining, projecting holding section 14.
  • the holding section 14 carries, at the free end in FIG. 1 on the right, an approximately plate-shaped, thickened holding head 15, which is designed, for example, like the anchoring head 13 and faces it.
  • the holding head 15 can be varied in terms of its shape and be of any kind. It can be designed as a spherical head or similar.
  • a cylindrical shaft 16 extends continuously between the anchoring head 13 and the holding head 15.
  • the anchoring bolt 11 can also be concreted in, the anchoring section 12 of which can be anchored with the anchoring head 13 within the concrete part 10, while in the area of the front holding section 14 around this by means of a recess body, for example a bell-shaped or in particular hemispherical free space 17 is created, into which the holding section 14 projects freely.
  • a recess body for example a bell-shaped or in particular hemispherical free space 17 is created, into which the holding section 14 projects freely.
  • the anchoring bolt 11 is designed in such a way that it enables fully automatic introduction into mass production in the concrete parts 10.
  • a guide part 18 is arranged on the length between the anchoring head 13 and the holding head 15, which is formed from a ring 19 in the first exemplary embodiment in FIG.
  • the outer shape and size of the guide part 18, in particular of the ring 19, is essentially chosen as that of the anchoring head 13.
  • the guide part 18 is also plate-shaped and thus round. It has the same outer diameter as the correspondingly designed anchoring head 13.
  • the outer diameter of the guide part 18 and of the anchoring head 13 is the same or slightly larger than the outer diameter of the approximately head-shaped holding head 15. It is particularly advantageous if the holding head 15 in the Diameter is slightly smaller than the anchoring head 13 and the guide part 18.
  • the guide part 18 is an integral part of the anchoring bolt 11.
  • the guide part 18, also in the form of the ring 19, is instead applied to the shaft 16, whereby it can be detachably held thereon and e.g. can consist of metal or plastic.
  • the ring 19 is at a greater distance from the anchoring head 13 than from the front holding head 15. The distance is dimensioned such that when the anchoring bolts 11 are inserted fully automatically, they can be held and guided in suitable devices and at the same time clamped and held in a vibration-proof manner.
  • the anchoring bolt 11 is made completely with all elements as a rotating part, specifically as a rotating part, in particular as an automatic rotating part.
  • the relatively narrow tolerances required for the trouble-free operation of the device for the fully automatic insertion of the anchoring bolts 11 can be reproduced and at low cost, so that the anchoring bolt 11 can be produced inexpensively in this way.
  • it can also be used in other ways, e.g. as a precision cast part, provided that compliance with relatively narrow tolerances is ensured.
  • the anchoring bolt 111 has the approximately plate-shaped anchoring head 113 at the left end and the holding head 115 at the right end, which here is shaped approximately according to the cutout of a ball.
  • the guide part 118 here consists of a sleeve 120, the outer diameter of which, including the holding head 115 surrounded by it, is selected to be at most as large as the outer diameter of the anchoring head 113.
  • the guide part 118 is applied to the shaft 116, e.g. releasably mounted on it.
  • the sleeve 120 is e.g. made of plastic or the like elastic material, which facilitates such mounting. Instead, the sleeve 120 can also be permanently foamed onto the shaft 116 and, if necessary, the holding head 115.
  • the anchoring bolt can be tensioned in the area of the holding head 15 and at the same time aligned and held in the area of the ring 19, the aligned guide and mounting takes place in the anchoring bolt 111 according to the second embodiment by attacking the sleeve 120, wherein the clamping can take place in the area of the holding head 115.
  • FIG. 3 shows an exemplary embodiment of a device 21 which is suitable for inserting and concreting an anchoring bolt 11 in the embodiment according to the first exemplary embodiment into a concrete part 10 to be formed in a mold 22 during its manufacture.
  • the mold 22 has two mold walls 24, 25 delimiting a mold cavity 23 between them, of which the mold wall 25 is e.g. contains circular, sealable opening 26.
  • the device 21 is held stationary on the mold wall 25 via a carrier 28.
  • She has a bell shaped, internally hollow molded part in the form of a front head part 29, which can be pushed in the horizontal direction in the direction of arrow 27 into the opening 26 and into the mold cavity 23.
  • the head part 29 has an approximately bell-shaped, for example spherical section-shaped, outer surface 30, which forms the free space 17 in the concrete part 10. In the shaping position shown in FIG. 3, the head part 29 with a cylinder section 31 passes through the opening 26 with a precise fit and tightly.
  • the cylinder section 31 is adjoined by an externally projecting stop 32, for example an annular collar, with which the head part 29 and inserted state against the outer surface of the mold wall 25 with closure and sealing of the opening 26, the head part 29 is permanently pressed in the arrow direction 27 with its stop 32 against the mold wall 25.
  • an externally projecting stop 32 for example an annular collar
  • the head part 29 is held on a coaxial guide tube 33. At least in the area of the head part 29, this has a guide, which is designed here as a guide bore 34 and continues through the head part 29 ′ to its front end with the same diameter and opens out there freely. Within the guide bore 34, the anchoring bolt 11 is aligned and held at least with its holding section 14 coaxially with the guide bore 34.
  • the anchoring bolt 11 has been inserted by hand with the holding section 14 first into the free end of the guide bore 34, in a state in which the head part 29 with the guide tube 33 has been completely retracted in the opposite direction to the arrow 27, and so far back that between the front end of the head part 29 and the mold wall 25 there is still enough space to manually insert an anchoring bolt 11 into the guide bore 34 from the front.
  • a drive 35 engages, by means of which the head part 29 with the guide tube 33 can be inserted into the mold cavity 23 with the closure and sealing of the passage 26 in the mold wall 25 in the direction of arrow 27 and by means of which the same parts can be shaped in the opposite direction to the arrow 27 below Release of the cemented anchor bolt 11 are removable and removable.
  • the drive 35 has a translation drive, in particular a hydraulic or pneumatic working cylinder 36.
  • This is formed as follows.
  • the guide tube 33 forms the piston rod of this working cylinder 36, which carries at the right end a piston 37 which can preferably be acted upon on both sides and which is held and guided in a cylinder housing 38.
  • the cylinder housing 38 sits on the carrier 28.
  • the longitudinal center axis of the working cylinder 36 runs transversely, in particular approximately at a right angle to the mold wall 25.
  • the guide tube 33 is hollow on the inside, forming the guide bore 34 there.
  • the device 21 is provided with a tensioning device 39 at the front end of the guide tube 33, by means of which the anchoring bolt 11 can be tightened in the region of its holding section 14, here its holding head 15.
  • the tensioning device 39 is arranged between the guide tube 33 and the head part 29 and is effective.
  • the clamping device 39 has a collet 40 fastened to the guide tube 33, the clamping jaws 41 of which contain the guide bore 34 inside, the clamping jaws 41 gripping and anchoring the anchoring bolt 11 on its holding head 15.
  • the inside of the head part 29 has a clamping surface 42 which tapers in the shape of a truncated cone towards the front end and which is adapted and assigned to the outer surface of the clamping jaws 41.
  • the collet 40 contains an axial stop 43, which is only indicated schematically and which can consist, for example, of elastically compressible material, for example rubber, foam or the like.
  • the insertion depth of an anchoring bolt 11 which can be inserted by hand into the guide bore 34 from the front can be limited such that, as shown, the ring 19 of the guide part 18 is still in the region of the head part 29 and there within the guide bore, as shown 34 is aligned and guided and the holding head 15 is located in the region of the front ends of the clamping jaws 41 and can be clamped by means of the clamping jaws 41, as shown.
  • the head part 29 is held and guided axially displaceably on the collet 40 of the guide tube 33.
  • the guide tube 33 carries a radial stop 44, in particular a stop ring, which is fixed thereon and is received in an annular space 45 adjoining the stop 32 of the head part 29.
  • the annular space 45 is delimited on the one hand by the stop 32 on one side of the stop 44 and on the other hand by a stop surface 46 located at the end of the annular space.
  • the device 21 operates as follows. At each work cycle, an anchoring bolt 11 is inserted into the device 21 by hand in the orientation shown in FIG. 3. This takes place in a position in which the guide tube 33 together with the collet 40 and the head part 29 is moved in the opposite direction to the arrow 27 into a completely retracted position via the working cylinder 36.
  • the stroke is dimensioned so large that there is sufficient space between the front end of the head part 29 and the mold wall 25 so that one can easily insert the anchoring bolt 11 with its holding section 14 into the guide bore 34 from the outside.
  • the return spring 47 is relieved.
  • the stop 44 bears against the stop surface 46, via which the head part 29 has been taken along during the withdrawal movement.
  • the insertion depth is limited by the axial stop 43 in such a way that the ring 19 is located in the region of the guide bore 34 and so that the anchoring bolt 11 is guided in this region and that the holding head 15 is located in the clamping area of the clamping jaws 41 and thus in this axially spaced area there is also a guide for the anchoring bolt 11, which in this way is reproducibly and exactly aligned coaxially with the longitudinal center line of the guide tube 33.
  • the collet 40 is not yet effective at this stage.
  • the working cylinder 36 is activated, whereby the guide tube 33 with the head part 29 and inserted anchoring bolts 11 is pushed in the direction of arrow 27, the head part 29 moving in the manner described through the opening 26 in the mold wall 25 into the position shown in FIG. 3 becomes.
  • the Head part 29 with its annular stop 32 firmly pressed against the mold wall 25, which ensures an additional good seal.
  • the pressing force is transmitted from the annular stop 44 to the stop 32 via the return spring 47. If the stop 32 finds sufficient resistance for this sealing by pressing, the return spring 47 is compressed. As a result, the collet 40 moves axially further into the head part 29 in the arrow direction 27 relative to the head part 29.
  • the working cylinder 36 When the compacting process of the concrete part 10 is completed, the working cylinder 36 is activated in the direction opposite to the arrow 27.
  • the guide tube 33 is pulled to the right. Due to the return spring 47 and the axial space between the stop 44 and the stop surface 46, the collet 40 is first pulled out relative to the head part 29 and relaxed so far that its relaxed clamping jaws 41 hold the head 15 of the anchoring bolt 11 release. The head part 29, however, is still pressed against the mold wall 25.
  • the clamping jaws 41 have steps on the inside which form a stop for limiting the insertion depth of the anchoring bolt 11 to be inserted by hand and replace the axial stop 43.
  • the guide tube 33 is continued into the collet 40 and its guide bore 34 with a reduced diameter, this section fulfilling the function of the axial stop 43.
  • a permanent magnet is provided as an axial stop, which e.g. is held on a shoulder of the guide tube 33 protruding into the guide bore 34 of the collet 40 at the front end.
  • the permanent magnet ensures an additional mounting of a manually inserted anchoring bolt 11 and ensures its positioning.
  • the guide tube 233 is hollow on the inside and at least on a rear longitudinal section 248 as a cylinder housing 249 for guiding Bore 234 coaxial, in this merging and leading to the front head part 229 leading feed, which is designed here as a feed bore 250.
  • a push rod 251 by means of a drive 252 can be moved back and forth.
  • This drive 252, which operates on the push rod 251 is designed as a translation drive, in particular as a hydraulic or pneumatic working cylinder 253.
  • the push rod 251 is designed as a piston rod of the working cylinder 253 and is provided at the rear end with a piston 254 which can preferably be acted upon on both sides and which is held and guided in the cylinder housing 249.
  • the cylinder housing 249 in turn forms a piston rod and carries the piston 237 of the working cylinder 236, which forms the lifting drive of the device 221.
  • the push rod 251 With its front end pointing towards the head part 229, the push rod 251 forms a thrust member which works on an anchoring bolt 211 located in the feed bore 250 (FIG. 5) and this from the feed bore 250 to the guide bore 234 and through it to the front until
  • the diameter of the feed bore 250 in the guide tube 233 is approximately as large as that of the guide bore 234 and at the same time approximately as large as the anchoring head 213 and the ring-shaped guide part 218, which is preferably of the same size.
  • the holding head 215 is preferably somewhat smaller in diameter than the anchoring head 213 and guide part 218, since then this annular holding head 215 has more play in the device 21, 221 after loosening the collet 240 (FIG. 3) and thus there is no danger that when the device 21, 221 is retracted, it hangs on the anchoring bolt 11 gene remains and tears it out of the concrete part 10,210.
  • a device 255 is assigned to device 221, which can be arranged almost arbitrarily in space relative to device 221.
  • the magazine 255 contains a plurality of anchoring bolts 211 of the same type in a magazine shaft 256.
  • the magazine shaft 256 is connected to the feed bore 250 in such a way that the lowest anchoring bolt 211 there can be discharged into the feed bore 250 from the magazine shaft 256.
  • the magazine slot 256 can be inclined or in particular across, e.g. be aligned approximately at right angles to the feed bore 250.
  • the magazine shaft 256 is arranged approximately vertically and above the guide tube 233, whereby the lowest anchoring bolt 211, if released, can automatically enter the feed bore 250 below due to the weight.
  • a blocking member 258 is arranged at the output end 257 of the magazine shaft 256 adjoining the feed bore 250. This blocks the discharge end 257 and the release of anchoring bolts 211 from the magazine 255.
  • the blocking member 258 consists e.g. from a horizontal slide on which a drive e.g. in the form of a pneumatic or hydraulic working cylinder that moves this slide in the horizontal direction either in the locking position shown in Fig. 4 or in its release position, not shown.
  • the device 221 operates as follows.
  • the anchoring bolts 211 stacked in the magazine shaft 256 lie one above the other in a vertical arrangement.
  • the anchoring bolt 211 which is the lowest in the magazine shaft 256, reaches the feed bore 250 in the manner described.
  • the locking member 258 is acted on by the associated drive device, that in the horizontal direction is inserted laterally into the magazine shaft 256 and, for example, at the same time can be at least slightly raised in the vertical direction, as a result of which the stack of anchoring bolts 211, which is underneath and located in the magazine shaft 256, is raised somewhat.
  • the anchoring bolt 211 located in the feed bore 250 is free to move.
  • the working cylinder 253 is subjected to a displacement movement of the push rod 251 in the direction of the arrow 259.
  • the push rod 251 pushes the anchoring bolt 211 forward in the direction of the arrow 259 so that the annular guide part 218 is still in the region of the guide bore 234 at the front end of the head part 229 and experiences guidance there and the holding head 215 also experiences centering, specifically within the collet 240 in the area of the clamping jaws 241.
  • the anchoring bolt 211 is thus reliably centered and held within the device 221 in a reproducible position.
  • the fourth exemplary embodiment also ensures that the guide bore 234 is closed and sealed by means of the annular guide part 218 and the holding head 215, so that no concrete later in the guide bore 234 during the filling and compacting process and the device 221 can penetrate.
  • the working cylinder 236 is activated, whereby the guide tube 233 together with the magazine 255, the collet 240 and the front head part 229 is moved forward in the direction of the arrow 227 via the loaded piston 237.
  • the head part 229 is pushed into the mold 222 and pressed with the collar-shaped stop 232 against the mold wall 225 under sealing.
  • the working pressure on both the piston 254 and the piston 237 remains fully effective, so that the anchoring bolt 211 remains firmly clamped and the head part 229 remains firmly pressed against the mold wall 225 while ensuring a good seal . Since this device 221 also has no large parts and only a few individual parts at all, the wear is kept as low as possible. If the form 222 is filled with concrete and this is compacted, the working cylinder 236 is first activated and its piston 237 is acted on, via which the entire device 221 is moved in the opposite position to the arrow 227 into the end position shown in FIG. 5. The collet 240, which releases the holding head 215 of the anchoring bolt 211, is relaxed in the manner described.
  • the head part 229 is taken along and moved out of the mold 222. Thereafter, the working cylinder 253 can be activated and its piston 254 can be actuated in the opposite direction to the arrow 259 so that a new anchoring bolt 211 can be received in the feed bore 250 in the manner described.
  • the device 221 is characterized by only a few individual parts and by the fact that it is compact and therefore takes up little space and is also completely maintenance-free, since all the guides via the pressure medium, e.g. Hydraulic oil or compressed air.
  • the pressure medium e.g. Hydraulic oil or compressed air.
  • the device 321 shown in FIG. 6 in accordance with the fifth exemplary embodiment corresponds to that in FIGS. 4 and 5 and differs from it solely in another embodiment of the clamping device 339.
  • the clamping device 339 has a clamping ring 360 elastically deformable material, such as rubber.
  • the clamping ring 360 is arranged in an annular space 361 which is only open radially inwards.
  • the annular space 361 is formed between the front end face 362 of the guide tube 333 which has passed through it and an annular section 363 of the head part 329 which projects beyond this front end and has a radially inward-facing end wall 364.
  • the inside diameter of the relieved tension ring is at least slightly larger than the outside dimension, in particular the outside diameter, the holding head 315 and / or the anchoring head 313 of the anchoring bolt 311, which is the same size or larger collar-shaped stop 332 is firmly pressed against the mold wall 325 and when the return springs 347 compress, between the end face 362, the end wall 364 and the ring section 363 so elastically deformed that the material of the clamping ring 360 dodges radially inwards and the clamping ring 360 then the anchoring bolt 311 in the area of, for example, its shaft 316, close to the holding head 315.
  • the anchoring bolt 311 is therefore of a conventional type and is not provided with the additional guide part.
  • a guide part for example in the form of the sleeve 120 as in the second exemplary embodiment in FIG. 2, can be provided on the shaft 316.
  • the clamping ring 360 when it clamps the anchoring bolt 311 in the manner described, also acts as a front seal and reliably prevents concrete from penetrating into the guide bore 334.
  • the mode of operation is otherwise as described above.
  • the Tension ring 360 relaxes, which resiliently reverts to its original shape, until the inside diameter of the tension ring 360 is larger than the outside diameter of the holding head 315. Then the entire device 321 is moved back with the release of the concreted anchoring bolt 311.
  • the clamping device in the form of the collet is completely eliminated. Instead, the guide tube 433 firmly connects to the front head part 429, which is welded to it, for example.
  • the way it works is as follows. Before the filling and compression process is initiated, the working cylinder 436 is activated and its piston 437 is acted upon, as a result of which the entire device 421 is moved towards the mold wall 425 and the front head part 429 is inserted into the mold and pressed against the mold wall 425, as previously with the other embodiments have been explained.
  • the other drive 452 is not yet activated.
  • the push rod 451 is still in the retracted position, with two anchoring bolts 411a and 411b lying axially against one another within the feed bore 450, which is continuous to the front.
  • the front anchoring bolt 411a in contrast to FIG. 7, has not yet been pushed out.
  • the feed device of such automatic machines for producing concrete parts 410 moves back.
  • the upper fold is pressed in on the machine side by means of the upper sleeve with simultaneous vibration with accompanying further compression of the concrete part 410.
  • the drive 452 is now activated and its piston 454 is acted on so that the push rod 451 in the direction of the arrow 459 advances.
  • both anchoring bolts 411a, 411b located in the feed bore 450 are pushed forward, the foremost anchoring bolt 411a being pressed into the concrete part 410 and being fully embedded by shaking in the concrete part 410 due to the continuing compression process.
  • the piston 437 is acted upon in opposite directions, as a result of which the device 421 returns to the starting position.
  • the anchoring bolt 411a remains in the concrete part 410.
  • the device 421 is extremely simple, compact, inexpensive and cheap. It has the least moving parts and is therefore particularly simple and cheap.
  • anchoring bolts 411a, 411b can thus be introduced and concreted in during the production of the concrete part 410.
  • the anchoring bolts 411a, 411b are gripped and centered in the region of their holding section, namely on the annular guide part on the one hand and holding head on the other hand, within the feed bore 450 and inserted with the anchoring section ahead through the opening in the mold wall 425 into the molding space.
  • the approximately bell-shaped, for example approximately hemispherical front head part 429 is introduced into the molding space as a recess body, which is left in this form during the shaping of the concrete part 410 with the anchoring bolt 411a being concreted in.
  • the anchoring bolt 411a is aligned, centered and held in the region of its holding head and the annular guide section located at an axial distance in the guide bore of the guide tube 433 and adjoining head part 429 on the opening in the mold wall 425.
  • the guide bore is at the end facing the mold wall 425 by means of the anchoring head of the Anchor bolt 411a closed and sealed against the ingress of concrete, the device 421 thus protected against such interference.
  • the head part 429 is pushed into the mold space with the guide tube 433 and the passage of the mold wall 425 is closed and sealed with the head part 429.
  • the molding space is then filled with concrete that is compacted.
  • the anchoring bolt 411a is pushed out of the head part 429 and pressed into the concrete part 410. Then pull the head part 429 with the guide tube 433 out of the molding space and pull it coaxially to the anchoring bolt 411a from its holding section with the holding head and guide part.
  • the other devices according to FIGS. 3-6 operate in the manner described, the fundamental difference being that the respective anchoring bolt is held and clamped in the end position required for concreting in before the mold space is included Concrete filled and this is compacted.
  • the anchoring bolt is not only centered and gripped in the guide tube and front head part, but is additionally tightened by means of a tensioning device.
  • FIGS. 8 and 9 makes use of the features of claims 12-14, 16-30, 32, 33 and 45-55.
  • this device is designed approximately as in the fourth embodiment according to FIG 4 and 5.
  • the device is designed and designed for differently designed anchoring bolts 511, namely those which are formed as continuous strip-shaped flat anchors, the anchoring section 512 and holding section 514 of which are each completely identical, these being integrally connected to one another via an equally shaped and dimensioned guide section 518.
  • the anchoring section 512 and the holding section 514 each have at least one breakthrough 565, 566, which are advantageously each formed, for example, as elongated holes, the breakthrough 565 of the anchoring section 512 being filled with concrete in the state concreted into the concrete part 510, and such a positive anchorage. Between the openings 565, 566 there is still a hole 567, which is also filled with concrete when concreted in and reinforces the anchoring.
  • Such anchoring bolts 511 designed as flat anchors are particularly simple and inexpensive. They can be produced, for example, as stamped parts or in some other inexpensive way. They also have the advantage that they can be stacked tightly and in a space-saving manner in a magazine slot 556 of a magazine 555, the magazine being particularly simple.
  • the magazine shaft 556 runs horizontally and on one side of the guide tube 533.
  • the anchoring bolts 511 which are designed as flat anchors, are each oriented in an upright manner in a horizontal stack, wherein they abut one another on the broad side.
  • the height of the magazine shaft 556 is dimensioned according to the width of each anchoring bolt 511.
  • the magazine stack is loaded at the end with a spring 568, which also serves to feed the anchoring bolts 511.
  • the guide 534 provided in the guide tube 533 and in the front head part 529 and also the feed 550 adjoining the magazine shaft 556 are each designed as a narrow, in particular upright, longitudinal slot, the height and width of the longitudinal slot corresponding to the width or cross-sectional thickness of the anchoring bolts 511 are measured.
  • the device is provided in the same way with a drive in the form of a pneumatic or hydraulic working cylinder 536 at the rear end of the length section 548, via which the entire device together with the magazine 555 can be moved back and forth.
  • the rear longitudinal section 548 has a pneumatic or hydraulic working cylinder 553 with piston 554 and push rod 551, as in the other exemplary embodiments described.
  • the push rod 551 is dimensioned with respect to its cross-sectional dimension and its cross-sectional shape so that it can move smoothly into the guide 534 designed as a longitudinal slot and push forward the anchoring bolts 511 released from the magazine shaft 556.
  • the center axis of the push rod 551 runs, for example, in alignment with the longitudinal center line of the longitudinal slot 534.
  • the tensioning device 539 arranged in the head part 529 has a tensioning member 569 which is guided in the front head part 529 transversely to the broad surface of the anchoring bolt 511. This is formed from a piston and, in the clamping position shown in FIG. 8, presses on the facing broad surface of the anchoring bolt 511.
  • the clamping member 569 is actuated by pressure medium. It is fed via a channel 570 and a line 571 connected to it with the pressure medium, which is also fed to the working cylinder 536 for the stroke in FIG. 8 to the left.
  • the tensioning member 569 is guided within a bore 572, wherein the end face of the tensioning member 569 facing away from the anchoring bolt 511 can be acted upon by the pressure medium supplied via the channel 570.
  • the tensioning member 569 can be tapered, for example be frusto-conical, the cone angle being dimensioned such that the tensioning member 569 also engages positively when tensioning in the opening 566 and at the same time transversely to the wide surface exerts directed clamping force in such a way that the anchoring bolt 511 is clamped and held with the other broad surface in the area of at least the holding section 514 within the guide 534 of the head part 529.
  • a return spring 573 which counteracts the tensioning force acts on the tensioning member 569 and is shown only schematically in FIG. 8 as a tension spring.
  • the device works as follows. In the initial position, the entire device is retracted, for example, like that in FIG. 5. First, the drive 552 is activated and its piston 554 is pressurized, so that the push rod 551 is pushed to the left in FIG. 8 and the two at the same time Anchoring bolts 511 designed as flat anchors, which are located in the guide 534, are moved into the position advanced in FIGS. 8 and 9, in which the front anchoring bolt 511 assumes its desired position. Now the working cylinder 536 is activated and pressure medium is introduced into the working space of the cylinder housing 538, so that the entire device together with the magazine 555 in FIG. 8 is shifted to the left, the front head part 529 being pushed into the mold, as in the others Exemplary embodiments explained.
  • the pressure medium introduced into the working space of the cylinder housing 536 passes via the line 571 and the channel 570 into the head part 529 and to the tensioning member 569, the end face of which is acted upon.
  • the tensioning member 569 is moved against the action of the return spring 573 in the direction of the anchoring bolt 511 and tightens it in the head part 529.
  • the clamping device 539 is first released. This can be done, for example, by actuating a schematically indicated valve 554, which blocks the line 571 and at the same time depressurises the channel 570, so that the return spring 573 the tendon 569 is moved back to the non-exciting starting position.
  • the piston 537 is acted upon by pressure medium on the other piston surface, as a result of which the entire device is shifted to the right in FIG.
  • the head part 529 is pulled off the anchoring bolt 511 concreted into the concrete part 510.
  • the piston 554 thereof is shifted to the right in the starting position in FIG. 8 until the push rod 551 releases the feeder 550 over the width of the magazine shaft 556, so that the spring 568 im Magazine stacks of the feed 550 closest to the following anchor bolts 511 can get into the feed 550.
  • the drive 552 can be reversed as the first operation, so that the push rod 551 advances this anchoring bolt 511, which has been newly introduced into the feed 550, and, via this, the anchoring bolt 511 located further forward in the guide 534 into the correct position. Then the cycle starts again.
  • the tensioning device 539 is missing.
  • the device then works like that according to the sixth embodiment in FIG. 7. With its help, the individual anchoring bolts 511 are then pressed into the concrete part 510 during the shaking process, as a result of which the functions function simplify this device.
  • the tensioning device is designed analogously to that, for example, in the third or fourth embodiment.
  • the clamping device can also have at least two transverse clamping jaws, each on two opposing narrow surfaces and / or wide surfaces of the flat anchor Attack the anchor bolt 511 to tighten it.
  • the device according to FIGS. 8 and 9 has the advantage that, due to the flat anchors, the space required in the magazine 555 is extremely small and the anchoring bolts 511 are extremely inexpensive in this embodiment.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP86116159A 1985-12-06 1986-11-21 Verfahren und Vorrichtung zum Einbringen und Einbetonieren eines Verankerungsbolzens in ein Betonteil Withdrawn EP0230542A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3543195A DE3543195C2 (de) 1985-12-06 1985-12-06 Verankerungsbolzen für Betonteile sowie Verfahren und Vorrichtung zum Einbringen und Einbetonieren solcher Verankerungsbolzen
DE8536798U DE8536798U1 (de) 1985-12-06 1985-12-06 Verankerungsbolzen für Betonteile
DE3543195 1985-12-06

Publications (1)

Publication Number Publication Date
EP0230542A1 true EP0230542A1 (de) 1987-08-05

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EP86116159A Withdrawn EP0230542A1 (de) 1985-12-06 1986-11-21 Verfahren und Vorrichtung zum Einbringen und Einbetonieren eines Verankerungsbolzens in ein Betonteil
EP87900097A Expired EP0248061B1 (de) 1985-12-06 1986-12-03 Verankerungsbolzen für betonteile

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Application Number Title Priority Date Filing Date
EP87900097A Expired EP0248061B1 (de) 1985-12-06 1986-12-03 Verankerungsbolzen für betonteile

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EP (2) EP0230542A1 (da)
DE (2) DE8536798U1 (da)
DK (1) DK156036C (da)
WO (1) WO1987003638A1 (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008540A1 (fr) * 1988-03-12 1989-09-21 Detec Fertigung Gmbh Dispositif pour la fixation d'attaches de transport sur des coffrages pour elements en beton
US6286270B1 (en) 1998-03-20 2001-09-11 Paul Gruson Bar anchor and method for reinforcing steel in concrete construction
AT408859B (de) * 2000-03-29 2002-03-25 Maba Fertigteilind Gmbh Ringförmige dichtung
WO2009017417A1 (en) * 2007-08-01 2009-02-05 Svein Berg Holding As Joining system for two building elements
AT521682A4 (de) * 2018-11-12 2020-04-15 Ulrich Schluesselbauer Vorrichtung zum Halten eines Hebeankers für ein Werkstück aus Beton
AT523387A4 (de) * 2020-04-29 2021-08-15 Mmk Holz Beton Fertigteile Gmbh Verbundfertigteil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2649738B1 (fr) * 1989-07-17 1993-06-11 Marcel Arteon Ancre notamment pour panneau de beton
DK110590D0 (da) * 1990-05-03 1990-05-03 Pedershaab Maskinfabrik As Fremgangsmaade og apparat til stoebning af et betonlegeme
GB2360563A (en) * 2000-03-22 2001-09-26 Lindley Parapet Systems Ltd An anchor having a longitudinal recess

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1918965A1 (de) * 1969-04-15 1970-11-12 Heinrich Geisel Anordnung und Vorrichtung zum Anordnen der Verankerungsoesen bei Kunststeineinfassungen
DE3219139A1 (de) * 1982-05-21 1983-11-24 DETEC Fertigung GmbH, 6080 Groß-Gerau Verfahren und vorrichtung zum einsetzen von transportankern in betonfertigteile
EP0159551A1 (de) * 1984-03-30 1985-10-30 Deha Ankersysteme GmbH & Co. KG Vorrichtung zum Einbringen von Transportankern in eine Giessform für Betonteile

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Publication number Priority date Publication date Assignee Title
BE790435A (fr) * 1971-10-26 1973-02-15 Rapid Metal Developments Ltd Garniture d'etancheite
US4569167A (en) * 1983-06-10 1986-02-11 Wesley Staples Modular housing construction system and product
DE3413291A1 (de) * 1984-04-09 1985-10-17 Wagener & Polascheck Vertriebsgesellschaft mbH, 4800 Bielefeld Vorrichtung zum einlegen von transportankern in betonfertigteile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1918965A1 (de) * 1969-04-15 1970-11-12 Heinrich Geisel Anordnung und Vorrichtung zum Anordnen der Verankerungsoesen bei Kunststeineinfassungen
DE3219139A1 (de) * 1982-05-21 1983-11-24 DETEC Fertigung GmbH, 6080 Groß-Gerau Verfahren und vorrichtung zum einsetzen von transportankern in betonfertigteile
EP0159551A1 (de) * 1984-03-30 1985-10-30 Deha Ankersysteme GmbH & Co. KG Vorrichtung zum Einbringen von Transportankern in eine Giessform für Betonteile

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008540A1 (fr) * 1988-03-12 1989-09-21 Detec Fertigung Gmbh Dispositif pour la fixation d'attaches de transport sur des coffrages pour elements en beton
US5123825A (en) * 1988-03-12 1992-06-23 Detec Fertigung Gmbh Device for inserting transport anchors in forms for concrete parts
US6286270B1 (en) 1998-03-20 2001-09-11 Paul Gruson Bar anchor and method for reinforcing steel in concrete construction
AT408859B (de) * 2000-03-29 2002-03-25 Maba Fertigteilind Gmbh Ringförmige dichtung
WO2009017417A1 (en) * 2007-08-01 2009-02-05 Svein Berg Holding As Joining system for two building elements
AT521682A4 (de) * 2018-11-12 2020-04-15 Ulrich Schluesselbauer Vorrichtung zum Halten eines Hebeankers für ein Werkstück aus Beton
AT521682B1 (de) * 2018-11-12 2020-04-15 Ulrich Schluesselbauer Vorrichtung zum Halten eines Hebeankers für ein Werkstück aus Beton
AT523387A4 (de) * 2020-04-29 2021-08-15 Mmk Holz Beton Fertigteile Gmbh Verbundfertigteil
AT523387B1 (de) * 2020-04-29 2021-08-15 Mmk Holz Beton Fertigteile Gmbh Verbundfertigteil

Also Published As

Publication number Publication date
DK408487D0 (da) 1987-08-05
WO1987003638A1 (en) 1987-06-18
EP0248061B1 (de) 1989-10-18
DK156036C (da) 1989-11-13
DE8536798U1 (de) 1986-06-26
EP0248061A1 (de) 1987-12-09
DE3543195C2 (de) 1995-04-20
DE3543195A1 (de) 1987-06-11
DK156036B (da) 1989-06-19
DK408487A (da) 1987-08-05

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