DE7932608U1 - Multi-part dowel made of plastic for fastening and connecting plate-shaped components to a building - Google Patents

Description

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Faster GmbH S Co «Kd Fixing technology Feldmatfcehweg 12 / 7ÖÜD Freiburg i / Br _s

/ Dowels for fastening and connecting vnn / plate-shaped components with the Öauwerk

The invention relates to a dowel for connection and Fastening of lightweight panels to structures;

In the isolation technique for fixing lightweight panels of insulating materials> lämmstoffen etc. already fixtures use ^1: * the - be something like a nail into the prepared holes smashed and building material and plate connect - mostly in one piece of plastic.

Such plate holders are known under your name IsO-lierplatteendübel, Insulating mushroom, insulating star, insulating material holder i.a. and are comparable to a nail in their mode of action; The head of the nail is circular / - star-shaped, plate-shaped, so that a large support and clamping surface is formed; which holds and presses the lightweight plate to be fastened. The nail-like The tip of the insulating plate holder that makes the connection with the load-bearing building material is similar to an unslotted dowel Element with a wide variety of external profiles in transverse and

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La h "g§ direction, such as VöPsteheflde ribs, lamellas! UsWi In order to avoid Vor KMltöbföken are defensive elements Predominantly made in one piece from plastic

Such one-piece / gefiägelte fixtures si fid just 2u riiöhtiefeh without additional screws or Mägpl You are practical, unless special Anfofderungen ah the viability and Standsichefheit def Vefbihduhg overall ^ represents are t

Defaftige joint> nailed fastenings are, however inadequate / when high security is required and the borehole ratios of the subsoil are different and even unknown are * In the case of nailed fastenings, a connection is created that is based almost exclusively on displacement when entering the plastic nailing will hit the surrounding building material displaced and squashedi Since every nail, regardless of whether it is a metal or plastic nail, is determined by its fixed mass, The ability to adapt to compensate for unequal boreholes is therefore naturally limited. If a plastic nail is driven into a building material which is stronger than the nail itself, the nail is squeezed and peeled off; becomes a plastic nail L into a If the building material is driven in, which is softer than the nail itself, the building material is peeled off.

The nailed fastening is therefore only able to withstand loads to a limited extent, its security is not defined and often leads to Incorrect assembly and loosening of the connection;

The invention has set itself the task of eliminating the disadvantages of the nailed fastenings and of creating a fastening / which is permanent, safe and controllable and can accommodate high load-bearing capacities in a wide variety of building materials with a wide variety of boreholes. _t

The invention therefore relates to a dowel consisting of Expansion dowels and insulating plate nails being the specific Advantages of the wprBizdübel.s in; L the advantages of the nail element

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mentis ko'fnbi h'iert Wefdefi URd a dowel unit wifdi which both ufide = Finier'te conditions iffi rock compensate for j as well the used nails when inserting into the bore of the expansion anchor the guide element with constant, defined Conditions offers «

In an inventive design of the anchor, the neck part of a conventional plastic expansion anchor, for example the plastic expansion anchor according to patent application OS 272962B, is designed for receiving the insulating flat nail in accordance with Swiss patent applications 9120 / 7B-4 and 955/79 ^ 6 mechanically expanded and the positive and non-positive connection with the building " ¹ fabric produced" The expansion effect gives the dowel connection stability and high load-bearing capacity in a wide variety of building materials can be used directly in the manner described at the beginning and also offered as a combined unit with the expansion dowel.

Before assembly, the insulating plate nail is placed in the neck of the Expansion anchor locked. The locking devices in the neck of the dowel adjust the nail and prevent one Pre-expansion of the anchor takes place when it is inserted into the borehole, so that the assembled fastening unit is in the Push-through process without any problems through the consecutive Drilling of plate and building material can be performed; Only when the fastening unit is fully inserted is, is spread by hammering the Isolierplattennagels into the associated dowel. The nail-like The plate holder thus takes on the function of a nail or a screw, as is usually the case with mechanical expansion an expansion anchor with volume displacement.

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The leading steps are above in the aft of ribs, webs, etc .; the both opposite as äuöh staggered in the Führkähäl and Halßteii des SpFeizdübelö VoF the Spfeizbefeioh des Öübsls are arranged and when further driving the isolier ^ piattennageis stretched wefdehi

The dowel has at least one or more such locking devices

At the beginning of the expandable area in the slitted region dl & Dübeischenkei two are connected by predetermined breaking parts in the manner of opposing webs. Due to the webs, the premature spreading of the dowel legs when inserting into the drill hole is prevented. After the desired setting depth has been reached, the sole separators are burst when the nail is then driven in and cause the subsequent continuous spreading *

In DS 2547016 there is a sleeve and a pin - both off Plastic - by two opposing so-called SoH ^ breaking points firmly connected to each other; the application of impact force is intended to break the break points and push them together lead from pin and sleeve. In practice, however, it has been shown that proposed solutions for those Predetermined breaking points, dividing ribs, dividing webs, etc. are to be separated by applying impact force, unsuitable and lead to incorrect assemblies, by being powerful the predetermined breaking points are separated and the pin can possibly penetrate the sleeve, but if - how often the case - the impact force does not act exactly centrically P-> the pin already kinks in front of the sleeve. By the only point-like connection of the pin with the dowel via predetermined breaking points does not provide sufficient guidance of the Pin in the neck part of the dowel.

The invention overcomes these disadvantages. When driving the insulating plate nail into the guide channel of the expansion anchor there are frictional resistances that do not cause deformation to lead. The already a few millimeters in the guide channel

guided, nail-like extension of the Isolierplattennagels moves: continuously further in the already established Lead zone. The connection of the insulating board nail with the expansion anchor is done by simply inserting the Isolierplattennagels in the guide channel of the expansion anchor, § where it is through the locking elements similar to a latching mechanism is held.

Isolation plate nails and expansion dowels are both made of plastics with favorable sliding properties.

In a complementary - known per se - design, the dowel at its neck end overhanging its diameter, e.g. a collar, so that the dowel in the installed state is flush with the borehole wall and prevents the dowel from entering the borehole slips in.

Another, second assembly aid is the - also collar-like - attachment means on the neck part of the insulating plate nail. In precise coordination with the thickness of the to be fastened The insulation board nail is hammered in until until the stop collar rests on the collar of the dowel. This ensures that the insulating plate nail does not penetrate too deeply into the soft insulating or insulating material.

The design of the nail is disclosed in the Swiss patent applications. The interrupted by longitudinal slots, rows of protruding lamellas standing one behind the other, clawing in the anchoring part of the nail, see with the surrounding ones Elevations in the expansion part of the dowel, which are preferably arranged offset in the interior of the dowel legs, so that an infinitely variable / over the entire impact depth predefinition F. Guiding and locking of the nail is achieved.

In another embodiment of this invention, the Kunststoffnagei be spread in the front portion of the nail ^(like anchorage cable), but the nail has a via

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its total length through core drilling for the inclusion an expanding pin. When the expansion pin is hammered in, the plastic nail in the area between the lamellae packs lying longitudinal grooves blown and spread, since the material accumulation of plastic in this area weakest. Expanding legs are created which are formed by the lamella packs. The one to reinforce with Lamella packs provided with longitudinal ribs are arranged radially for the purpose of better deformation during the expansion process Make incisions. In another embodiment, the lamella stacks are joined by wall pieces that form webs connected to each other, which are burst like predetermined breaking points during the spreading process.

Due to this new construction, the original, simple plastic nail is converted into an expandable dowel with one or more expanding legs - depending on how many longitudinal grooves are broken - converted and has., the advantages of a dowel. The spreader pin, which, like the nail, is made of plastic, is in his Construction dimensions matched to the nail. In the exemplary embodiment 1 the profile of the expansion pin roughly corresponds to the core drilling of the nail.

In embodiment 2, the expanding pin has four segments extending over most of its length, which are arranged in a cross shape.

In an inventive design, the expanding pin has the Area of the section that engages in the anchoring area of the gel equipped with the lamellas, self-tapping Edges, the longitudinal grooves or web-forming wall pieces lying between the lamellar stacks of the nail cut through. The expanding pin has one or more pairs of such cutting edges, depending on how many longitudinal grooves in the Nails should be blasted · So that the cutting edges of the expanding pin are always on the forgotten separating atelles (Longitudinal groove or Wandsfcüeke) comb to the system, has the Core puff in the nail guide ribs that pin the spreader forcefully center and feed to the cutting points.

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All fastening elements described can be veined individually can be used in combination with each other. Depending on which The user finds construction and borehole conditions and the requirements for anchoring security the attachment, the user can choose from the variation options shown here - also retrospectively, namely when the defects appear - decide which fastening units to use which combination chooses. In the simplest case, fastening with the insulating plate nail will be sufficient. For the In the event that sufficient pressure is not achieved in the borehole, the insulating plate nail is also spread apart by driving in the expansion pin provided without having to create a new fastening hole. In the case of problem attachments, the insulating plate nail is only used used with the use of the expansion anchor. In particularly difficult fastening cases, the Expansion dowel combined insulation plate nail, expanded again by driving in the expansion pin so that a Maximum volume displacement is offered.

The following is the invention with its essential elements Features explained in more detail with reference to drawings They show in different scales:

1 shows the insulating plate nail locked in the expansion dowel in an overall view.

Fig. 2 the fully driven into the expansion anchor Isolation plate nail in the overall view.

3 shows the spreadable insulating plate nail in an overall view.

4 shows the insulating plate nail expanded by the expanding pin in the overall view.

Fig. S the combination of expansion dowels with an expansion pin spread insulating plate nail.

Fig, 6 full size section of the pencil p .

7 shows a section of a lamella package,

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Fig. 8 shows a cross section of the core hole of the insulation panel

hagels in section A-A from Fig. 5 Fig. 9 shows a cross section of the core bore of the insulating plate hail in section B-B from FIG. 5

Fig. 1 shows the Isolierplattennagel (I), which is already installed expansion dowel (2) is preassembled. The not yet expanded expansion plug (2) lies in the drill hole (3) of the building material (4) and closes the borehole (3) of the building material (4) flush with the collar-like lifting gear (5) away. The expansion legs (2a, 2b] of the expansion anchor (2) have inside the offset to one another, opposing ribs (6), in which later the circumferential The lamellae (7) of the insulating plate nail (1) will snap into place. The Isolierplettennagel (1) is in the guide channel (B) of the The neck part of the expansion anchor (2) is locked. The protruding elevations (9) in front of the expansion area of the expansion anchor (2) grip the insulating plate nail (1).

Number 16 shows those at the beginning of the spreading range Target dividers.

The distance (dl) between the head (12) of the Isolierplatteona ^ els and the collar-like stop collar (10) of the insulating plate nail (1) arises from the thickness (d2) of the plate (11) to be fastened.

In Fig. 2 the Isolierplattennagel (1) is completely driven into the expansion dowel (2) and has spread it, the Solltrennotege (IB) are separated. The stop collar (10) of the insulating nail (1) lies flush with the sling (5) of the expansion anchor (2 ¹ diuf.

In Fig. 3, the Isolierplattennagel (1) has the core hole (la), which extends over the entire length of the nail (1). In code number (17) are those in the spreading range Isölierplatiienfiäßelä (1) along the core hole (la) artg§ = Bring, blastable wall pieces shown. The Anöohlagbund (10) bowl; flush with dsid Sehrleeh (3) away·

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The lamellas (l3äj des Lämel lönpäketes (13) and the den spread ^ bereh VöränkerOhRSabsöhhitt 1 des isöliefplätten " fiagels (1) absöh lessettdefi, circumferential grooves 114) intervene in the building material (4) «

In Figi 4, the insulating nail (1) is spread by driving in the expanding pin (IS) ifi the Kefnböhrung (la) of the gel (D) the wall pieces (17) are torn

Ih Fig. 5, the fastening elements expansion dowels (2), isolating plate nails (D urid expansion pin (1-5) are comhihinrt.,

As shown in Fig * 6, the expanding pin (15) has the Cutting edges (1θ) and the kfeuzförrtjg arranged guide Segments (19) *

Fig. 7 shows a partial section of an expanding limb end Lamella pack (l3) j where the one with longitudinal ribs (20) reinforced lamellas (13a) are interrupted by radial incisions (2l) *

Fig. Θ illustrates the central guidance of the cross-shaped arranged guide segments (19) of the expanding pin (15) through the guide ribs (22) in the core bore (la) of the insulating nail (1).

Fig, 9 illustrates the before the separation between the lamellae packs (13) of the Isolierplattennagels (D lieginäerv Längffutefi or * WandstuiSke 'Οΐί7) ^Ί ί

Claims (1)

t · «■ ·· ■ MI I ··· · III 11 1 # § I 311 , 11! ■ «· Il Jl Protection claims ! ./ Multi-part plastic dowel for fastening and Connection of plate-shaped components to a structure, / characterized in that the anchor consists of an expansion anchor (2) and an insulating plate nail (1) which can be inserted into it, the insulating plate nail being longer is than the expansion dowel and has a receiving channel (la) for an expansion pin (15). 2. Dowel according to claim 1, characterized by in the guide channel (8) of the neck part of the expansion anchor arranged holding means (9) and one on the front part of the insulating plate nail provided external profile, so that the Isolierplattenagel through the holding means (9) can be retained on the outer profile on the front nail part. 3. Dowel according to claim 2, characterized in that the holding means projecting elevations (9> are located opposite one another in the guide channel (8) of the neck part of the expansion anchor (2) in front of the expansion area of the Expansion anchor (2) are arranged. 4. Dowel according to claim 1, characterized in that the expansion dowel (2) on the inside of its expansion legs (2a, 2b) has opposing ribs (6) arranged offset to one another in the longitudinal direction of the dowel. 5. Dowel according to claim 1, characterized by predetermined separating webs (16) at the beginning of the expansion area of the expansion dowel (2) and on the inside of its expansion legs (2a, 2b). «Ill Il fill If Il If I * I ι ι Ι * # ι 'IIIIII I I 1 IHI ι I 4 i I. ι III f · tt t I. I Il Il Ί Il Il • ■ ι * · · a · »» · ft 5. Dowel according to claim '), characterized in that the Isolation plate nail (1) at a distance (d ..} from his head (12) has a stop collar (10). 7. Dowel according to claim 1, characterized in that the insulating plate nail (1) has an expandable anchoring section (I) has. 8. Dowel according to claim 7, characterized in that the receiving channel (1 a) of the insulating plate nail on the inside of the expandable anchoring section (I) has an expanding pin (15) separable wall pieces (17). 9. Dowel according to claim 8, characterized by one in the Receiving channel (1a) of the insulating plate nail, insertable expanding pin (1ü) with at least one pair of cutting edges (18). 10. Dowel according to claim 9, characterized in that the receiving channel (1a) of the nail (1) guide ribs <22)
has, in which cross-shaped guide elements (19) of the expanding pin (15) are guided so that the
Cutting edges (18) led to the wall pieces (17)
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