DE2143440A1 - TIE ANCHORS WITH LAYING TOOL - Google Patents

Description

The invention relates to a tie rod, in particular an adhesive anchor, with a laying tool for it, the laying tool holds the tie rod when screwing and with a drill or the like. Auxiliary tool connects.

Tie-rods are used here in natural or artificial masonry, usually bolt-like inserted by gluing Understood elements that are usually made of metal and an internal and / or external thread for screwing own other fasteners. Such known tie rods, provided with an internal thread, normally have also an external thread or the like. Profiling on its outer jacket, which ensures a form fit with the adhesive ensures, by means of which the tie rod is glued in its associated wall hole.

Previously known tie rods have, for example, on their outer end face a transverse slot for receiving the blade of a Screwdriver. The introduction of such a tie rod

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using a (hand-screwdriver is tedious and time-consuming and the screwdriver alone does not hold the axial position of the tie rod well.

You could, for example, tie rods provided with an internal thread via a threaded bolt that fits into this thread with a drill or the like. connect and in this way insert the tie rod into the wall hole with the help of this machine, whereby it executes numerous rotations in the desired manner _s through which the adhesive located in the wall hole is distributed as evenly as possible, if necessary even first destroys the (glass) container of a two-component adhesive ₃ the adhesive components are mixed and distributed as evenly as possible on the outer surface of the tie rod. However, this would have the considerable disadvantage that removing the aforementioned threaded bolt from the tie rod would make a considerable effort.

The invention is therefore based on the object ₉ a tie rod and a VerlegewerkEeug create au "the successive tuned and the use of a drilling machine or the like. to be able to insert the tie rod into the pre-drilled wall hole, whereby on the one hand this promotes the mixing and distribution of the adhesive and on the other hand the introduction of the tie rod and the separation of the laying trade from it is accelerated or simplified, without the tie rod itself or during its assembly process noticeable disadvantages and without having to accept considerable additional expense.

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The solution to this problem according to the invention consists above all that in the case of a tie rod with a laying tool of the type mentioned at the beginning, the laying tool has one over its one end with a drill or the like. has connectable square pin, the other end - at least during the assembly process - in the form of a detachable plug connection in a polygonal socket einr (Tkft, the one connection matched to the tie rod, e.g. has a matching shorter threaded piece.

With such coordinated tie rods and laying tools f you can turn the tie rod with sufficient accuracy in the axial position and at least in the screwing direction with the laying tool and this in turn connect to a drill that is normally available for setting tie rods. Man This drilling machine can use the laying tool to quickly insert the tie rod and to mix the adhesive well together with the drill after inserting the tie rod but also easily and quickly from the tie rod remove. Instead of a drilling machine, the laying tool can also be connected to another auxiliary tool, e.g. an electrically powered screwdriver; the formation of tie rods and laying tools does not obstruct the possibility of in exceptional cases, to insert the tie rod with a hand screwdriver or a similar hand tool.

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A hexagonal pin, as is customary for turning hexagon socket screws, is preferably used as the Mebrkantstift, with Accordingly, a hexagon socket serves as the polygonal socket. Hexagon pins and hexagon socket, e.g. with hexagon socket screws, are common tools or components which are often available in the workplace anyway or are easily replaceable.

In the case of tie rods with an internal thread, an on the inside thread itself or at the end of the installation tool on the tie rod side Internal thread of the tie rod coordinated grub screw or the like, threaded part may be provided which has a hexagon socket or the like. having. With the help of such a grub screw or the like. and the associated polygonal pin can be described in more detail Way easily such a tie rod with a drill or the like. connect firmly to insert the tie rod, after Bring in the drill or the like quickly and easily. together with the hexagonal pin from the tie rod.

If the tie rod has an external thread, the installation tool can advantageously have an on the hexagonal pin or the like. attachable Have a hexagon socket that is firmly connected to a threaded sleeve, preferably a screw nut, whose internal thread is matched to the external thread of the associated tie rod, with a stop on the threaded sleeve is provided for the tie rod or its end face. For one formed in this way, on the one provided with an external thread Laying tools matched to tie rods apply to

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the tie rod with internal thread mentioned advantages, but with the proviso that here all parts of the installation tool are available for further use.

A slightly modified embodiment of a tie rod with a matching installation tool is that a threaded bolt provided with an external thread at least at its end facing the associated tie rod has a hexagon socket or the like at the end remote from the tie rod. having and having, if necessary, in its central region a radially over its overall a winch above, preferably consisting of a thread on the bolt located · * nut stop for the end face of the tie rod. The threaded sleeve or nut can expediently be firmly connected to the threaded bolt carrying the hexagon socket piece, for example by welding.

A hexagonal pin can preferably be attached to the outer end of the tie rod or the like. the installation tool should be provided with a matching hexagon socket. A weakening of the outer end of the ™ Tie rod is prevented by the fact that the axial extension of the hexagon socket is only half the height of the corresponds to the fastening nut to be screwed on the tie rod. The same applies to the axial dimensions of the internal thread with the last-described tie rod with an external thread. A particular advantage of having a relatively short one Hexagon socket or the like. equipped tie rod is that both he and the laying tool simply, the latter

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possibly only consists of a hexagonal pin and that nevertheless one Weakening of the tie rod at its later heavily loaded end practically does not rise.

In the case of a tie rod, which is to be fixed in its associated wall hole by means of adhesive and dofct by means of the laying tool with the aid of a drill oddgl. can be introduced relatively quickly, it is important and advantageous that a good distribution of the adhesive takes place. Often the two containers of a two-component adhesive should also be destroyed by the tie-rod that is introduced _3, the two-component adhesive should be mixed well and distributed as evenly as possible over the outer surface of the tie-rod. To this is, in particular during rapid introduction of the "tie rod, composed of a drill cd" like. Zr-_ favor _£ after an important _s verteilhaften lieiterMläiing the invention, the tie rod at its inner ITiicle with a voraugstraise symmetrical. * V-shaped sharpening raii about roof-shaped mixing surfaces provided = piping © rieiehtera by their edge formation not mrr the destruction of the adhesive container _a but cause in particular with their roof-shaped mixing surfaces a circulation of the _I "lsu3toffes _s iiisessoEidepe a mixing of the two components of a Zv7s?,?.: omponent adhesive. In addition, this co-rotating movement of the adhesive promotes that the adhesive works well. © ntl.aji ;? distributed around the outer surface of the tie rod.

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With such a design of the tie rod that is advantageous per se, which also makes it possible to use the laying tool and the drilling machine is favored, the roof-shaped mixed surfaces collide to form a ridge edge. This can act like a drill especially in soft wall material, especially if the tie rod is connected to a drill is introduced. As a result, the wall of the tie rod's wall hole can be damaged or widened, and so can the tie rod Corresponding damage can also occur to the perforated sleeves, for example for a more even Spread the adhesive in the wall hole. In order to prevent or largely reduce such disadvantages, Another development of the invention is that at the lateral ends of the roof-shaped Mixing surfaces resulting time edges or the like. truncated bevels are provided.

Finally, there is another particularly advantageous embodiment an internally threaded tie rod in that it has a thread-like profile on the outside, whose Pitch and course that corresponds to the internal thread. This avoids weakening parts in the sleeve-like tie rod area;

The invention is explained and described in greater detail with the details essential to the invention with reference to the drawing. It show in different scales:

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Pig. ί a tie rod partially shown in longitudinal section with internal thread;

FIG. 2 shows the introduction of a tie rod according to FIG. 1 with the aid a drill in a wall hole;

3 shows a hexagonal pin which has an insertion cone at one end for a corresponding drilling machine spindle;

Fig. ¹ J a hexagonal pin which has an enlarged hexagonal cross-section outside of its engagement area for the hexagon socket; ·

5 shows a hexagonal pin provided with a plug-in cone and also

6 shows a tie rod provided with an external thread, which has an internal hexagon which is open at its outer end face for receiving the hexagonal pin according to FIG.

Fig. 7 shows a hexagon socket, which is firmly connected to a screw nut, the thread of which on the external thread of a Tie rod fits;

8 shows a tie rod with an external thread, as it is with a connecting element can be screwed in according to FIG. 7;

FIG. 9 shows a connecting element which is somewhat modified compared to FIG. 7 for mounting a tie rod according to

Fig. 10, in which a tie rod is shown, partly in section, which has a threaded bore beginning from its outer end face, the thread of which is preferably serves for auxiliary purposes.

Threaded bolt with -9-

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In Pig. 1 shows a tie rod designated as a whole by 1, which has an internal thread 2 into which a fastening element to be attached to the tie rod is screwed can be, for example a (not shown) screw. In addition, the tie rod 1 has 3 on its outer surface a thread-like profiling // this is with regard to their The gradient and its course are adapted to the internal thread 2 according to a further development feature of the invention. Achieved thereby one that weaknesses in the wall thickness of the tie rod 1 are avoided. The approach of the internal thread is accordingly 2 or its further course and the approach or further course of the thread-like profiling 4 of the lateral surface 3 arranged in synchronism, so that the e.g. Wall thickness of the tie rod visible in section in the area of the internal thread 2 and the coaxial thread-like profiling 4 stay the same. In practice, for this purpose, a type of external thread is applied to the lateral surface 3, although with respect to the diameter ratio corresponds to the outer diameter D of the tie rod, but its pitch corresponds to the pitch of the Internal thread 2 corresponds, the protruding threads 5 of the external thread-like profiling in their position correspond exactly to the radially outwardly projecting grooves of the internal thread 2.

A grub screw 6, which according to Pig. 1 and 2 are already is located in the thread root of the internal thread 2.

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Qfese grub screw has a hexagon socket 7. This grub screw 6 can also be present as a separate part at the beginning of the assembly process and, for example, on the part belonging to the laying tool Hexagonal pin 8 is placed and then by means of a drill (not shown in detail) into the internal thread 2 of the tie rod 1 down to the bottom, in Pig. I and 2 are turned in the position shown. In Fig. 2, a hexagonal pin 8 is closed recognize that is clamped in the chuck 9 of the aforementioned (not shown) drill. In Fig. 2 one recognizes also the wall W and the wall hole 10 pre-drilled therein for receiving the tie rod 1. In this embodiment, this wall hole is executed with a slightly larger diameter than the outer diameter D of the tie rod 1 corresponds. In the wall hole see one with numerous radial holes 11 Sleeve 12. In it there is a two-component adhesive 13 and the object of this, which does not belong to the present invention The sleeve is, among other things, the most uniform possible distribution of the adhesive 13 on the outer surface 3 of the tie rod 1 or on to favor the wall of the hole 10, especially if in the wall W pores or the like. There are recesses, like

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this occurs, for example, in aerated concrete ¹ hollow blocks, but can also occur in natural stone, via the grub screw 6 and the hexagonal pin 8, the tie rod 1 is sufficiently firmly connected to the chuck 9 of the drill (not shown) so that it is sufficiently well connected in terms of its axial position is guided and the rotary movements of the chuck 9 follows. Accordingly, the tie rod penetrates - possibly with the destruction of (glass) containers ₉ which the two -

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component adhesive 13 contained, in the wall hole 10, with the help of roof-shaped mixing surfaces to be described a good mixing of the adhesive 13 and its displacement in the area of the lateral surface 3 of the tie rod 1 and in the embodiment of FIG. 2 in the area on both sides of the sleeve 12 causes. Once the tie rod has been introduced into the wall W with the desired depth, the hexagonal pin 8 only needs to be pulled out of the grub screw 6. The grub screw 6 then normally remains in the inner end of the internal thread 2 as a lost part of the installation tool (

In Fig. 3, a hexagonal pin 8 is shown, which is attached at its end facing away from a tie rod 1 with a known plug-in cone 15, which sits in a known manner in the corresponding hollow cone 16 of a drilling machine spindle 17. Here, the hexagonal pin 8 equipped with the plug-in cone 15 forms, for example in cooperation with a grub screw 6 according to FIGS. 1 and 2, the laying tool which establishes the connection between the tie rod 1 and a drilling machine (not shown). ^v

You can adjust the torsional strength of the installation tool, in particular of the hexagonal pin 8, if this hexagonal pin 8 according to the embodiment of FIG. 4 only in The area where it engages in the hexagon socket 7, e.g. the grub screw 6, matches this hexagon socket cross-section, while the hexagonal pin also has a

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has a larger cross-section. Preferably this is enlarged Cross-section also formed hexagonal, so that it is, for example, with its enlarged cross-section to another grub screw 6 or the like. with hexagon socket 7 fits and can be clamped into the drill chuck 9 so that the end of the smaller cross-section is within the drill chuck 9 is located.

5-6, 7, 8 and 9, 10 are somewhat modified Formations of parts of the laying tool and the respective corresponding embodiment of a tie rod are shown. Fig. 6 shows part of a tie rod la, which is shown in the region of its outer end in longitudinal section. This tie rod la has a coaxial hexagon socket 7a extending from its outer end face 20. An important development of this hexagon socket 7a is that its axial depth t is only about half Height H corresponds to a screw nut to be screwed onto the tie rod la (not shown). This leaves the Material weakening on the tie rod la in an area that practically does not affect the load on the tie rod external thread 21 affects. In Fig. 5, the hexagonal pin 8a matched to the tie rod la according to FIG. 6 is shown, which is connected to a plug-in cone 15 in the manner already described. This hexagonal pin 8a can possibly be larger Length formed sien than it corresponds to the axial extent t of the hexagon socket 7a in the tie rod la and how

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it is indicated in phantom in FIG. However, you can also adjust the length 1 of the hexagonal pin 8a to the depth t of the Vote hexagon socket 7a, which in conjunction with the mutual end-face contact of the plug-in cone to the Tie rod end face 20 an improved hold of the tie rod can be achieved.

In Fig. 7 and 8 is a slightly modified embodiment shown by tie rods and part of the laying tool. The tie rod Ib according to FIG. 8 has an external thread 21 accordingly the tie rod la according to FIG. 6. In addition, there are no special measures for attaching a laying tool provided according to the invention. At its front

20 a transverse slot 22 is also provided for receiving the blade of a screwdriver, as is the case with previously known tie rods this type is used. An essential part of the laying tool is shown in longitudinal section in FIG. 7. There is a threaded nut 25 with one of the external threads

21 of the tie rod Ib corresponding internal thread 26 is provided, which ends as a blind hole at the outer end of the nut 25, where a stop surface 27 is formed there, which extends against the end face 20 of the tie rod Ib can create. Pointing away from this, the nut 25 is followed by a sleeve-like one Hexagon socket piece 28 into which a hexagonal pin 8 is plugged in. The hexagon socket piece 28 is firmly connected to the nut 25 by weld seams 29. The mother 25 is screwed onto the tie rod Ib and connected to it Hexagon socket 28 a with a drill

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or the like. connected hexagonal pin inserted. Once the Stop 27 '' which is located at the outer end of the nut 25 and does not need to be designed as a closed surface, rests against the end face 20 of the tie rod Ib, is both with respect to the axial position of the tie rod Ib and With regard to the torsional strength in the screwing-in direction, a sufficiently strong connection between the tie rod on the one hand and the drill or the like. on the other hand manufactured and de

Tie rod Ib can in the manner already described in the hole 10 of the. Wall W are introduced. Then you can first remove the drill with the hexagonal pin. After a certain The nut 25 », for example, can be used to harden the adhesive Unscrew the tie rod Ib using a wrench. The last-described embodiment according to 7 and 8 has the advantage, among other things, that already existing tie rods Ib, be it with or without a transverse slot 22, easily using a drill and with the help of a hexagonal pin with the resulting Benefits can be relocated. The connecting element having the nut 25 and the hexagon socket piece 28 is Can be produced with very little effort, has small dimensions and is relatively light from the glued one Remove anchor rod Ib.

In FIGS. 9 and 10, an embodiment that is only slightly modified compared to that described in FIGS. 7 and 8 is shown. A tie rod Ic with an external thread 21 has on his

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outer end has a threaded hole 30. This corresponds to (FIG. 9) a threaded bolt 31 on which a screw nut 32 is welded in the central area, which forms a stop for the end face 20 of the tie rod Ic. At the end of the threaded bolt 31 facing away from the tie rod Ic, there is in turn a hexagon socket 28 for inserting a hexagon pin. To lay the tie rod Ic, the threaded bolt 31 is screwed into the threaded hole 30 of the tie rod Ic and this in the manner already described with the aid of a hexagonal pin with a drill 'or the like. in connection. After the tie rod lc i has been inserted, the drill with the hexagonal pin can neither first be withdrawn and, if necessary, the threaded bolt 31 can be removed later. The embodiment according to FIGS. 9 and 10 has the advantage over the embodiment according to FIGS. 7 and 8 that the threaded bolt ei 31 with the screw nut 32 located thereon can be designed to be more space-saving, especially in the radial direction, so that this embodiment is advantageous when space is accordingly limited is. Both designs according to FIGS. 7 and 8 or 9 and 10 have the advantage over the other designs that between the tie rods Ib and Ic on the one hand and the connecting parts according to FIGS In the case of tie rods Ib and Ic to be introduced approximately vertically downwards, the position of the tie rods is therefore in control, for example by means of a corresponding axial mounting of the connecting parts according to FIGS. as indicated in FIG. 9.

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An important aspect for laying tie rods with laying tools is the even distribution of the adhesive or the like. in the area of the lateral surface 3 of the tie rod 1, 1 a, etc., especially if the tie rod is introduced relatively quickly into its wall hole 10 with the aid of a drill and a laying tool. In order to facilitate the shattering of capsules or the like, which may contain an adhesive consisting of several components, and in particular to achieve good, intensive mixing with two-component adhesives, but also to achieve favorable displacement conditions in the wall hole 10, so that the Klbber is distributed as evenly as possible in the area of the lateral surface of the tie rod 1, 1 a, etc. In order to facilitate this, a symmetrical V-shaped taper 50 is provided on the inner end of the tie rod 1, la, etc. to be inserted first into the wall W, as can be seen in its V-shape in FIG . In the case of such a V-shaped tapering, mixing surfaces 51 arranged approximately in the shape of a roof result (cf. FIGS. 1 and 2). These mixing surfaces 51 meet in a ridge edge 53. In order that these, in particular with their lateral corners, do not undesirably change the wall hole 10 or a sleeve 12 located therein in the manner of a drilling tool, whereby the tie rod 1, la etc. could come into an unintended position, are according to a development of the invention at the lateral ends of the ridge edges resulting from the roof-shaped mixing surfaces, truncated bevels 5 ¹ J are provided. The mixed surfaces can therefore be used well - even if the tie rod is driven by a powerful drill

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promote the process of mixing and spreading the adhesive without in-its to damage the wall hole or the sleeve 12 noticeably.

The advantage of the tie rod 1, la, etc. and the laying tool for this, which are both mutually coordinated, lies above all in the fact that the tie rods can be attached to the construction site anyway with relatively little effort Insert an existing drill or a similar auxiliary device into the associated wall hole, immediately but then this drill udn a part of the laying tool that is directly connected to it, namely the Hexagon pin 8 or the like. Separate from the tie rod and immediately reinsert the drill and hexagon pin 8. Possibly only a small part of the installation is possible,

namely the grub screw 6 (Fig. 1 and 2) lost or you can easily remove the parts according to Fig. 7 or 9 of the installation tool from the tie rod Ib, Ic, e.g. after the adhesive has hardened and continue to use.

It is advantageous if the Innenseehskantstück ä 28 is formed as a threaded bolt in the laying tool riaeh Fig. 7 and is slightly screwed into the threaded sleeve 25, after which a connection of these parts takes place by means of the weld seams 29th In this way, a particularly simple and at the same time very strong connection is obtained. It is also advantageous if the end face of the hexagon socket piece is designed as a convex stop facing the tie rod Ib convexly. Tests have shown that loosening the laying tool 25; 28 according to FIG. 7 is easier to carry out from the screwed-in tie rod Ib. 309 810/0412 _ _l8 .

Claims (3)

2H3U0 Expectations Tie rod with laying tool for it, whereby the laying tool holds the tie rod when screwing in and with a drill or the like. Auxiliary tool can be connected, characterized that the laying tool one over his one end with the drill or the like. connectable Has polygonal pin (8), which with its other end - at least during the assembly process - in the manner of a detachable The plug-in connection engages in a polygonal socket, which creates a connection that is matched to the tie rod (1), e.g. a connection has matched shorter threaded piece. 2) tie rod with laying tool according to claim 1, characterized in that that a hexagonal pin (f) is used as the polygonal pin and a hexagonal socket (7; 28) is used as the polygonal socket. 3) tie rod with laying tool for it according to claim 1 or 2 for tie rod with internal thread, characterized in, that on the tie rod internal thread (2) or on the tie rod end of the installation tool one on the internal thread (2) Matched grub screw (6) or the like. Threaded part is provided which has a hexagon socket (7) or the like. having. -19- 3098 10/0412 2H3440 4) tie rod with VErlegewerkzeug according to claim 1 or 2, characterized in that the laying tool on the Hexagonal pin (8) or the like. attachable hexagon socket (28) which is firmly connected to a threaded sleeve, preferably a screw nut (25), whose internal thread (26) is matched to the external thread (21) of the associated tie rod (Ib), with the Threaded sleeve or the like. (25) a stop (27) for the tie rod (Ib) or its end face (20) is provided. 5) tie rod with laying tool for it according to claim 1 or 2, characterized in that at least one at his the end facing the associated tie rod (Ic) with an external thread provided with threaded bolts (3D on the tie rod remote End of a hexagon socket (28) or the like. having and preferably in its central region a protruding radially over its thread, preferably from one the threaded bolt (3D fastened screw nut (32) existing stop for the end face (20) of the tie rod (Ic), in which one corresponding to the threaded bolt Internal thread (30) is provided. 6) tie rod with laying tool for it according to claim 4 or 5, characterized in that the threaded sleeve or The screw nut (25 or 32) is firmly connected to the threaded bolt carrying the hexagon socket piece, e.g. by welding seams (29). -20-30981Q / 0412 2U3440 7) tie rod with laying tool, characterized in that the hexagonal pin (8a) or the like. of the laying tool ; A matching hexagon socket (7a) is assigned directly to the outer end of the tie rod (la). 8) tie rod with laying tool according to claim 5 or 7, characterized in that the axial extent of the Internal threaded hole (30) or the internal hexagon (7a) at the outer end of the tie rod (la, Ic) about only half Height (H) of the fastening nut to be screwed onto the tie rod (la or Ic) and that, if applicable, the length (1) of the hexagonal pin (8a) or the free end of the threaded bolt (31) on the axial extension of the internal threaded hole or the hexagon socket and / or a stop is provided. 9) tie rod with laying tool according to one or more of claims 1 to 8, characterized in that the hexagonal pin (8) outside of its engagement area a widened cross-section, preferably a hexagonal cross-section owns. 10) tie rod with laying tool according to one or more of claims 1 to 9, characterized in that the hexagonal pin (8) or the like. at its end facing away from the tie rod with a known plug-in cone (1 * 0 for a corresponding Bohrmasehinenspindel or the like. is trained. -21- 309810/0412 2U3U0 11) tie rod with laying tool according to one or more of claims 1 to 1O _3, characterized in that the tie rod (1, la) etc. at its inner end has a preferably symmetrical, V-shaped taper (50) with approximately roof-shaped mixing surfaces (51 ) for glue or the like. Has tie rod fasteners. 12) tie rod with laying tool according to claim 11, characterized in that that at the lateral ends of the roof-shaped mixing surface (51) resulting Ftfirstkante (53) or the like. sharp-edged inner end truncated bevels are provided. 13) tie rod with laying tool according to one or more of claims 3 »10» H or 12, characterized in that the outer circumferential surface (3) of the tie rod (1) has a thread-like profile (4) which is inclined and Course corresponds to the internal thread (2) of the Zugankas (1). 1 * 0 tie rod with laying tool according to one or more of A claims 4, 5 »6 and 9 to 13, characterized in that an axial holder for the threaded sleeve (25) or the threaded bolt (31) or its stop (32) (35) is provided. -U- 309ÜI 0/0412 2H3U0 15) Zugaker according to one or more of claims 4 to
IM, characterized in that the hexagon socket piece (28) something in the threaded sleeve (25) or the like. is dusted in and is preferably formed with a convex stop (27) which is convex towards the tie rod (Ib). Patent attorney 3 0 9 «10704 1 2 Blank page