DE1500923B1

DE1500923B1 - Expandable bolt anchoring device

Info

Publication number: DE1500923B1
Application number: DE19661500923
Authority: DE
Inventors: Taylor Cecil Arthur
Original assignee: Rawlplug Co Ltd
Current assignee: Rawlplug Co Ltd
Priority date: 1965-12-15
Filing date: 1966-12-07
Publication date: 1969-10-16
Also published as: FR1502420A; ES334090A1; FI44867C; DK118860B; BE690970A; NO116146B; GB1109570A; FI44867B; NL6617436A; SE325448B; CH468562A

Description

1 21 2

Die Erfindung bezieht sich auf eine spreizbare gen deutlich werden, sind mit den Muffen oder den Bolzenverankerungsvorrichtung mit einem im wesent- Fingern am Verbindungsende verbundene Einrichlichen zylindrischen segmentierten Dübel, einem in tungen, die als Dichtung oder Polster zwischen der dem Dübel eingesetzten Spreizelement und einer an Wand oder dem Gegenstand dienen, der mit Hilfe dem einen Ende der Dübelsegmente angeordneten 5 der Verankerungsvorrichtung befestigt werden soll. Hülse, die diese in Form eines Zylinders zusammen- Die Erfindung wird im folgenden an Hand sche-The invention relates to an expandable gene are clearly with the sleeves or the Bolt anchoring device with a device connected essentially with fingers at the connection end cylindrical segmented dowel, one in lines that act as a seal or cushion between the the dowel used expansion element and one on the wall or the object with the help to be attached to one end of the anchor segments arranged 5 of the anchoring device. Sleeve, which these together in the form of a cylinder- The invention is described below with reference to

hält. Der Bolzen selbst wird zum Aufspreizen des matischer Zeichnungen an mehreren Ausführungs-Dübels verwendet, und zwar entweder durch Ein- beispielen näher erläutert. Es zeigt greifen in ein Spreizelement in Form einer Mutter, F i g. 1 in einer Teilansicht im Schnitt Dübeloder es ist das Spreizelement auf dem Bolzen als 10 Segmente einer spreizbaren Bolzenverankerungsvordessen Kopf ausgebildet. richtung, die mit einer eine erste Ausführungsformholds. The bolt itself is used to expand the matic drawings on several execution dowels used, either explained in more detail by examples. It shows reaching into an expanding element in the form of a nut, FIG. 1 in a partial view in section dowel or it is the expansion element on the bolt as 10 segments of an expandable bolt anchoring front Head trained. direction that with a first embodiment

Die Erfindung bezieht sich insbesondere auf eine bildenden Hülse oder Kappe versehen ist, Hülse oder Kappe, die über das eine Ende der Dübel- F i g. 2 und 3 die Hülse nach F i g. 1 in einerThe invention relates in particular to a forming sleeve or cap that is provided Sleeve or cap over one end of the dowel F i g. 2 and 3 the sleeve according to FIG. 1 in one

segmente geschoben wird, um diese um das Spreiz- Draufsicht bzw. einer Seitenansicht, element in Form eines Zylinders zusammenzuhalten 15 F i g. 4 in Schnittansicht eine weitere Ausführungsoder um sie zusammenzuhalten, bevor das Spreiz- form einer erfindungsgemäßen Hülse, element in den zusammengehaltenen Dübel eingesetzt F i g. 5 in einer Teilschnittansicht die Hülse nachsegments is pushed in order to expand them by the top view or a side view, element to hold together in the form of a cylinder 15 F i g. 4 a sectional view of a further embodiment or to hold them together before the expansion form of a sleeve according to the invention, element inserted into the dowel held together F i g. 5 shows the sleeve in a partial sectional view

wird. Eine derartige Hülse besteht bisher ausschließ- F i g. 4 in ihrer Anwendung bei einer in einer Wand lieh aus Metall und wird mit Hilfe einer Stauch- sitzenden Bolzenverankerungsvorrichtung, maschine über ein Ende der Dübelsegmente ge- ao F i g. 6 eine Teilschnittansicht einer weiteren Hülse klemmt, wobei zwischen den Enden der Dübelseg- bei Verwendung an einer Bolzenverankerungsvormente wenigstens eine gesonderte Federstahlklammer richtung, und zwar mit mehr Einzelheiten als in üblicherweise notwendig ist, um die Dübelsegmente F i g. 5,will. Such a sleeve has hitherto only been made. 4 in their application to one in a wall borrowed from metal and is secured with the help of an upset bolt anchoring device, machine over one end of the dowel segments ge ao F i g. 6 is a partial sectional view of a further sleeve clamps, with between the ends of the Dübelseg- when used on a bolt anchoring Vormente at least one separate spring steel clip direction, with more details than in is usually necessary to the dowel segments F i g. 5,

zusammenzuhalten. Die Federstahlklammer greift in F i g. 7 bis 9 weitere Hülsen wobei die F i g. 7 eineto stick together. The spring steel clip engages in FIG. 7 to 9 more sleeves with the F i g. 7 a

eine Umfangsnut des Dübels ein und ergänzt die 35 Seitenansicht ist und die F i g. 8 und 9 Teilschnitte Funktion der Hülse, d. h. hindert die Dübelsegmente _sm<j₅ a circumferential groove of the dowel and supplements the side view and FIG. 8 and 9 partial sections Function of the sleeve, ie prevents the dowel segments _sm <j ₅

daran, auseinanderzufallen und möglicherweise das Fig. 10 und 11 Teilschnitte, die für einige Aus-about to fall apart and possibly the Fig. 10 and 11 partial sections, which for some excerpts

Spreizelement zu verlieren, das in ihnen gehalten führungsformen der Erfindung Änderungen zeigen, wird. Die Nut für die Federstahlklammer bildet eine die vorzugsweise an den Dübelsegmenten der Ver-Schwachstelle ungefähr in Längsmitte des Dübels, so ₃₀ ankerungsvorrichtung vorgenommen werden, und daß sich die Segmente beim Aufspreizen zu früh an ρ i g. 12 in einer Schnittansicht eine AbwandlungTo lose spreader, the embodiments of the invention held in them will show changes. The groove for the spring steel clip forms a preferably approximately ₃₀ as anchoring device are made to the dowel segments Ver vulnerability in the longitudinal center of the anchor, and in that the segments during spreading too early ρ i g. 12 shows a modification in a sectional view

dieser Stelle biegen. Das Anbringen der Hülse ist der Hülse gemäß Fig. 4, während die Fig. 13 und schwierig, wenn sie den herkömmlichen Aufbau be- 14 Teilschnitte sind, die die Hülse nach der F i g. 12 sitzt; sie muß vor dem Einsetzen in die Stauch- j_n Verwendung bei einer Verankerungsvorrichtung maschine lose über den Dübel passen; in diesem ₃₅ zeigen.bend this point. The attachment of the sleeve is the sleeve according to FIG. 4, while FIGS. 13 and 14 are difficult if they are the conventional construction 14 partial sections which the sleeve according to FIG. 12 sits; it must fit loosely over the dowel before it is inserted into the upsetting j _n use with an anchoring device; in this ₃₅ show.

Stadium kann sie leicht abfallen. Darüber hinaus ist Gemäß den F i g. 5 und insbesondere 6 besitzt eineStage it can easily fall off. In addition, according to FIGS. 5 and in particular 6 has a

der Stauch- oder Klemmvorgang sehr geräuschvoll. Verankerungsvorrichtung, mit der sich die Erfindung Erfindungsgemäß besteht die Hülse aus federnd insbesondere befaßt, eine Mehrzahl von Segmenten 1 nachgiebig verformbarem Kunststoffmaterial und (gewöhnlich drei oder vier), die unter Bildung eines besitzt zwei konzentrische Muffen und/oder konzen- 40 zylindrischen Dübels vereinigt werden können, sowie irische Sätze von Fingern, die nur an einem Ende _ej_n konisches oder in anderer Weise zugespitztes verbunden sind und sich unter Bildung eines Ring- Spreizelement 2, das anfänglich vom Dübel vorsteht, kanals in dieselbe Richtung erstrecken, von dem die Das Spreizelement spreizt den Dübel, wenn dieser in Dübelsegmente aufgenommen und festgeklemmt ein Loch 3 einer Mauer 4 eingesetzt und das Spreizwerden, so daß die Außenmuffe und/oder der äußere 45 glied weiter in den Dübel gezogen wird. Die zuge-Fingersatz radiale Außenbewegung der Dübelseg- ordneten Enden der Dübelsegmente sind vorzugsmente verhindern und die Innenmuffe und/oder der weise nach innen abgeschrägt. Das Spreizelement 2 Satz von Innenfingern die Dübelsegmente von der besitzt entweder die Form einer mit Schraubgewinde Innenseite berühren. versehenen Mutter, die vom Schaft 6 eines Bolzensthe upsetting or clamping process is very noisy. Anchoring device, with which the invention is concerned, according to the invention, the sleeve consists of resilient, in particular, a plurality of segments 1 of resiliently deformable plastic material and (usually three or four) which are combined to form one having two concentric sleeves and / or concentric cylindrical dowels can, as well as Irish sets of fingers connected only at one end _e j _n conical or otherwise tapered and extending in the same direction from which the Das Spreading element spreads the dowel when it is received in dowel segments and clamped tightly a hole 3 of a wall 4 is inserted and the spreading, so that the outer sleeve and / or the outer 45 member is pulled further into the dowel. The assigned fingering radial external movement of the dowel segment ends of the dowel segments are preferred to prevent and the inner sleeve and / or be beveled inwards. The expansion element 2 set of inner fingers touching the dowel segments either in the form of a screw thread on the inside. provided nut, which from the shank 6 of a bolt

Die Hülse ist nicht nur eine einfache Kappe, die 50 erfaßt und durch Drehen des Bolzenkopfes 7 in den die Dübelsegmente gegen unbeabsichtigte radiale Be- Dübel gezogen wird (bekannt als Verankerungsvorwegung nach außen zusammenspannt, sondern besitzt richtung mit losen Bolzen), oder es bildet das Spreizeine Muffe und/oder Fingersätze, wodurch die Dübel- element selbst den Kopf des Bolzens, in welchem segmente von innen erfaßt werden. Auf diese Weise Falle 6 der Schaft des Bolzens und 7 eine gesonderte werden die Dübelsegmente an einer Verdrehung ge- 55 Mutter wäre, die beim Anziehen für das Einziehen hindert; außerdem besteht nicht die Notwendigkeit des Spreizelementes sorgt (Bauart mit vortretendem der Anwendung zusätzlicher Mittel an einer anderen Bolzen).The sleeve is not just a simple cap that engages 50 and, by turning the bolt head 7, into the the anchor segments are pulled against inadvertent radial loads (known as anchoring advance clamped together towards the outside, but has a direction with loose bolts), or it forms the spreader line Sleeve and / or fingerings, whereby the dowel element itself is the head of the bolt in which segments are captured from the inside. In this way, case 6 the shank of the bolt and 7 a separate one If the dowel segments are twisted, the nut would be used for pulling in when tightening hinders; In addition, there is no need for the expansion element (type with protruding applying additional funds to another bolt).

Stelle entlang der Dübelsegmente, um sie auf einem Bei der Bauart mit losem Bolzen ist es erwünscht,Position along the dowel segments in order to place them on a

Kreisbogen zusammenzuhalten. Ist ferner der Kanal das Mutterspreizelement 2 innerhalb des zusammenmit Bezug auf die Nachgiebigkeit des Hülsenmaterials 60 gehaltenen Dübels festzuhalten, und zwar mit Hilfe dimensioniert, so kann sie einfach an ihrer Stelle von Vorsprüngen 8 auf der Mutter, die in zwischen über ein Ende des Dübels oder umgekehrt gedrückt den benachbarten Bügelelementen 1 begrenzte Fenwerden. Die federnde Nachgiebigkeit des Kunststoff- ster 9 eingreifen. In beiden Fällen sollen selbstvermaterials gestattet ein leichtes Aufspreizen des an- ständlich die Segmente 1 unter Bildung eines zylinderen Dübelendes beim Einsetzen des Spreizelements 65 drischen Dübels zusammengehalten werden, und und anschließendes Zurückfedern. zwar nicht nur vor der Verwendung der Veranke-To hold circular arcs together. Furthermore, the channel is the nut spreading element 2 within the together with With respect to the resilience of the sleeve material 60 held dowel, with the help dimensioned so they can simply take their place by projections 8 on the nut that are in between Over one end of the dowel or vice versa, the adjacent bracket elements 1 are pressed to a limited extent. The resilient resilience of the plastic star 9 intervenes. In both cases they should be self-made allows the easy spreading of the segments 1 to form a cylindrical one Dowel ends are held together when inserting the expansion element 65 threshing dowels, and and then spring back. not only before using the anchor

Weitere Merkmale der Erfindung, die aus den rungsvorrichtung, sondern auch, wenn sich diese in nachfolgenden Ansprüchen an Hand von Zeichnun- dem Loch 3 befindet sowie während wenigstens derFurther features of the invention resulting from the approximation device, but also when this is in subsequent claims on hand of drawing hole 3 is located as well as during at least the

Claims

initial spreading step. The sleeve or cap 10 is used for this purpose.

According to FIGS. 1 to 3, the sleeve 10 has concentric sleeves 11 and 12 which at one end with one another are connected and between them form an annular channel 15 open at the end, in which the Segments 1 can be clamped or anchored. The sleeve is made of resilient molded or molded plastic and supports the

which could pass over the article 18 is sealed. It must be made aware 14 is only a schematic illustration to illustrate the effect 5 of the flanges 19 and 20 is used. In practice it is the anchoring device under fastening of the article 18 are attracted to the wall 4, at least parts of the corrugated annular section 17 the sleeve is also pressed together between the object 18 and segments in the combined form without the need for the ends of the dowel segments 1 agility of the use of aids. The and form a seal with no noticeable exterior Sleeve 11 is longer than the inner sleeve 12, the other gap remains. In addition, no remains advantageous and the segments 1 at 13 have a reduced gap between the shank 6 of the bolt and the Thickness for receiving the sleeve 11 and the Verringe- sleeve 12, so that the sealing effect continues tion or complete elimination of a supernatant, 15 is improved.

after which the outer diameter of the sleeve 11 is Another advantageous feature that results from

outer diameter of the united dowel above the Fig. 6, consists in a convex curvature protrudes. In a similar manner, an inner seat is provided for the inner sleeve of the inner surface of the inner sleeve 12 in the axial direction. The inner sleeve 12 is with the dowel so that it comes into intimate contact with a device determining its position in the form of the shaft 6 of the bolt and provided as a seal at least one bead 14, the preferred _to prevent the entry of moisture either with a snap fit _{acts on} the bolt in the hole 3 under the resilient effect i on g. All of the previously mentioned seals of the sleeve material in a groove 16 of the dowel help prevent the loss of potting; a reverse arrangement is also possible. or glue preventing the cases in the On-this defines the position of the sleeve ₂₅ on the combined application in certain Verbolzungen on ceilings over dowels. Even if the section 13 and the groove have to be injected into a central opening that corresponds to the

16 mean a reduction in the thickness of the segments, shaft 6 is provided along the bolt.

However, this has no influence on the anchoring J _n the cases of F i g. 7 to 9 is in place of the

tion strength, since the expansion largely previously described sleeve 11 a set of curved at the other end of the dowel, ie at the blind end ₃₀ th fingers 11a provided. Similarly, the hole can take place in the wall. concentric to the first movement another movement of

The sleeves 11 and 12 connecting and the fingers 12 a are provided, which is the inner sleeve the ring part forming the closed end of the channel 15 is replaced; both sleeves and

17 of the sleeve can be provided with crenellated or crown-shaped curved fingers. The number of may be designed as shown in FIGS. 2 and 3 overall ₃₅ fingers expediently corresponds to the number of anchors Displays is. segments, and each finger 11 can α through a

The resilient resilience of the sleeve material allows a certain compression of the ring part 17 in the axial direction of the dowel segments 1 and facilitates the securing of the object 18 (Figs. 5, ₄₀ and 6) in full contact with the outer surface of the wall 4, especially in those cases where the depth of the hole 6 is a little too shallow. A similar effect can be achieved with the aid of the in FIG. 4 shown

integrated annular flange 19 can be obtained. This 45 tends to "the" effect of the cohesive or Verist closing force initially to the longitudinal axis of the sleeve sockets over the greatest possible dowel length and is shown in FIG. 5 further radial _to have. The locking force can be spread for different outside when the object 18 is applied to the Hch long dowel segments and attached to a Konsi-wall. Under certain constant value, such a flange 19, in particular near the end of the seat 13 of the sleeve, a special, if it is longer than in the illustration, a larger dowel diameter is selected on or in the circumstances. Serve as a seal and / or buffer, which can be pressed between each dowel segment in the vicinity of the end of the wall and the object 18. Seat (Fig. 10) have one or more ribs,

Even with the length shown, the one under the sleeve 11 or the fingers 11 α works, Flange 19 as a sealing element, the penetration 55 or it can be conical at the end of the seat, the shoulder of dirt and thus the risk of corrosion, as shown at 23 in FIG. 11 the anchoring device is reduced. is. It goes without saying that this can be used on the dowel segments

The sleeve according to FIG. 12 should not be too great in relation to the closing force acting; she should those according to Fig. 4 by an inward not unnecessarily the radial outward movement of the extending annular flange 20 modified, the similar 60 segments during the spreading as well as for the the flange 19 when applying and tightening the purpose of inserting the expansion element in the Item 18 (Fig. 13) continue, but hinder radially after the dowel at the union, is spread inside. The flange 20 is proportioned so that the anchoring device according to end claims: valid attachment of the object to the wall 4, 65 1. Expandable bolt anchoring device as shown in FIG. 14 is shown by pressing with a substantially cylindrical segmendes Flange 20 in firm contact with the bolted dowel, an inserted in the dowel shaft 6 in an effective way against moisture expansion element and one at one end of the

Rib 21 (Fig. 8) or stiffened by the fact that it has a conical design in longitudinal section obtained (Fig. 9).

The outer sleeve 11 or the finger set 11 α of the sleeve 10 keeps the dowel segments 1 closed in their united cylindrical arrangement. The outer sleeve 11 or the finger set 11a is made longer than the inner sleeve or inner finger for the reason that

Dowel segments arranged sleeve which holds them together in the form of a cylinder, characterized in that the sleeve (10) consists of resiliently deformable plastic and has two concentric sleeves (U, 12) and / or concentric sets of fingers (Hfl, 12 «) , which are connected only at one end by an annular part (17) and extend to form an annular channel (15) in the same direction from which the dowel segments (1) are received and clamped so that the outer sleeve (11) and / or the outer finger set (11 α) prevent radial external movement of the dowel segments (1) and the inner sleeve (12) and / or the set of inner fingers (12 a) prevent the dowel segments

(I) touch from the inside.

2. Anchoring device according to claim 1, characterized in that the outer sleeve

(II) or the outer set of fingers (Hfl) the sleeve (10) is longer than the inner sleeve (12) or the inner set of fingers (12 α).

3. Anchoring device according to claim 1 and 2, characterized in that the inner Sleeve (12) or the inner set of fingers (12 a) of the sleeve (10) with seat-defining devices (14) is provided, which are in working contact with the anchor segments (1).

4. Anchoring device according to one of the preceding claims, characterized in that that the ring part (17) at one end of the sleeve (10) in a manner known per se is wavy.

5. Anchoring device according to one of the preceding claims, characterized by one with which the sleeve sleeves (11, 12) or the fingers (11 a, 12 a) connecting the ring part (17) made of one piece flange (19 and / or 20), the serves as a seal or cushion when it is pressed between an object (18) to be fastened to an outer surface (4) by the anchoring device and the outer surface.

6. Anchoring device according to one of the preceding claims, characterized in that that the inner surface of the inner sleeve

(12) of the sleeve (10) has a convex curvature in the axial direction of the anchor.

7. Anchoring device according to one of the preceding claims, characterized in that that the sleeve (10) from an indentation

(13) of the anchor segments (11) is added.

8. Anchoring device according to one of claims 3 to 7, characterized in that the seat-defining devices are formed by a bead (14) with a snap fit of a groove (16) provided in the dowel segment (1) can be received.

9. Anchoring device according to claim 7 or 8, characterized in that the indentation (13) or seat with one or more all-round ribs (22) or with a conical shoulder (23) is provided under the free end of the outer sleeve (11) or the outer fingers (Ha).

1 sheet of drawings