Connector for double glazing frame section members

The invention relates to a connector for double window frame profile according to the preamble of the main claim. Such a connector is for example from the<patcit id="pcit0001" dnum="US4989384A"><text>US-A-4,989,384</text></patcit> known. Specifically, the invention relates to an edge port connector for double window-frame sections have a base body, on which are arranged several of this protruding strip-shaped fins and an edge connector piece for front mounting an internal spacer rung at one of insulating necessary spacing frame.

From the prior art it is known to use hollow frame profiles or hollow distance profiles, to produce multi-pane insulation glass or double-glazed windows. Here, the frame hollow profile is cut to length and formed by means of the connector to a frame, onto which then on the front side and rear side in each case a glass plate is bonded. The frame hollow section is filled with a hygroscopic agent, in order to remove humidity from the entrapped air between the panes.

In such connectors, it is necessary that they are easy to assemble and can be reliably anchored in the frame hollow profile. Both the nature of the anchoring as well as the issue of fatigue of the plastic material plays a decisive role.

From the <patcit id="pcit0002" dnum="US4989384A"><text>US 4,989,384 A</text></patcit> discloses an edge connector connector for double window frame profiles to connect parallel, internal spacer sprouts. The connector has a base body with two emanating from a base plate, parallel and spaced legs. At the legs more thereof protruding strip-shaped fins are arranged pointing laterally outwards. On the legs, the spacer bar profiles are plugged. To the base plate, a transversely projecting pin is formed, which is provided for positioning and fixing in a hole of the frame profile.

The <patcit id="pcit0003" dnum="EP1199435A2"><text>EP 1199435 A2</text></patcit> shows another card edge connector with a connector single-blade body having a base plate which is adapted to the cross-section of a bar profile. In the middle of the connector has a longitudinal slot into which the base plate by a screw can be screwed, which extends the elongate slot and clamps the connector in the crossbar profile member. On the frame profile of the border terminal connector is secured by connecting.

The invention is based on the object to provide a connector of the aforementioned type, which is well anchored in simple design and easy, cost-effective manufacturability and ensures a high degree of operational reliability.

According to the invention the object is achieved by the combination of features of the main claim, the subclaims show further advantageous embodiments of the invention.

According to the invention it is thus provided that extend from a base plate of three mutually parallel legs, which are spaced to each other, the lamellae being arranged on the two outer legs pointing outwards and the central leg is provided with means for introducing a fastening element.

The connector according to the invention thus makes it possible to produce a particularly simple manner by means crosses double window frame profiles. As will still be described, the center marks can each comprise two parallel frame profiles, or a so-called Vienna sprout. Such Wiener rung has a relatively large total cross-section which is dimensioned such as the desired center cross. At the Vienna sprout can be dispensed with the installation of two parallel frame profiles. This results in a simpler assembly.

The connector according to the invention is thus universally applicable and can be used for a wide double window constructions. This decrease storage costs, since by means of a single connector different designs can be created.

According to the invention in a preferred embodiment, the distance between two adjacent fins is in a range of 1.5 to 2.0 mm.

By the invention is provided according to distance between the individual lamellae a sufficiently high number of segments can be implemented in the connector to ensure a secure mounting and anchoring.

Furthermore, according to the invention the dimensioning of the distances of the blades offers the possibility of the connector, which is plugged into the hollow section frame to reliably dig therewith. Since the various embodiments of frame hollow profiles comprise on its inside A diversity embodied raised or rough areas, for example by indentations, weld beads or the like, the connector according to the invention can be used universally for different frame hollow profiles.

it if the distance between adjacent fins is 1.75 mm is particularly favorable. It is understood that any type of intermediate values ​​from the above-mentioned range between 1.5 and 2.0 mm can be favorable, for example, values ​​of 1.55, 1.65, 1.85 and 1.95 mm.

According to the invention it is further provided that the total height of the basic body and the lamellae is larger than an associated internal height of the hollow profile. In this way the slats are forcibly deformed during the insertion into the hollow frame profile, which results in the inventively provided wedge effect of the lamellae. The fins hold the connector thus not by frictional force, as is known in the connectors known from the prior art, but by a specifically applied wedging action. This makes it possible, with the areas of the frame hollow profile sure to wedge the individual slice, at which no additional forms or similar are. According to the invention therefore there is a wedging or clawing of the slats, the effect particularly occurs when an extraction force is applied. Thus, the slats according to the invention differ from those known from the prior art embodiments in which the holder is effected by frictional and pressing of the lamellas against the wall of the frame hollow profile.

In order to promote a secure anchorage for the slat, it is particularly advantageous when the free edge of the lamella is bevelled for forming a cutting edge. This increases the surface pressure between the fin and the inner wall of the frame hollow profile increases.

According to the invention it is further particularly advantageous if the lamellae are arranged such that they extend inwardly, based on a final, produced from the frame hollow profile frame. The rear sides of the base body can then ensure a reliable positioning of the two ends of the frame hollow profiles, whereby each type of game can be excluded.

It is particularly advantageous if the slide length is about 24 mm. This means that the basic body is substantially 24 mm long, so that a sufficiently long distance can be filled with the lamella, so that a correspondingly high number of segments present. The slot length may be even 20 to 30 mm, depending on the dimensioning of the frame hollow profile.

The outer leg is provided on its side facing away from the lamellae with a sawtooth ribbing preferred manner. This also contributes to the bracket and provides a good contact on the frame hollow profile.

By construction, the invention makes it possible in a particularly simple manner, to connect the connector with the respective frame profiles in the area of ​​the base plate. This connection can be effected by a wide variety of fasteners, such as bolts or clamp-like fasteners that are fired, or by screws. It proves to be particularly advantageous if the base plate is provided with a central recess. This central recess serves firstly for guiding and centering of the fastener. Secondly, can the head of the fastener are well settled, as material parts of the frame profile which are mitverformt by a head of the fastener. This results in a substantially planar outer contour of the frame profile.

To improve a universal use of the connector or end piece according to the invention both the above-mentioned Vienna sprouts as well as two parallel frame profiles, it is advantageous when the middle leg with the respective adjacent outer leg via a separable. Strut is connected. The separable strut can be severed when pushed two frame profiles in a simple manner. When using a Wiener rung the struts remain and strengthen the holding force of the connector.

The middle leg is preferably integrally constructed of interconnected longitudinal webs and transverse webs which form a honeycomb-like or chamber-like structure. This results in a particularly good gripping a fastener such as a screw. It is particularly advantageous if two inner longitudinal webs are at a distance which is substantially equal to the core diameter of the fastening element or screw.

The longitudinal webs and transverse webs thus ensure good management of a helical fastener serve for centering the screw and allow high tightening force, which in turn, leads to an independent sinking the screw head, in particular for steel-frame profiles.

The connector according to the invention can thus be used as a connector, as Anschraubstück both for creating T-shoots or crosses. This has the advantage that the storage costs are low and that further, the connector according to the invention can be used both for different designs or dimensions of the frame profiles (also for the Viennese glazing), with different materials, aluminum and steel are used for the frame profiles.

The selection of the plastic material for the connector according to the invention is selected such that this is a hand so tough and elastic that the connector into the appropriate frame profiles can easily be inserted, on the other hand, the plastic has such a high strength to be used as Anschussstück or Anschraubstück. The plastic is thereby preferably also selected so that the separable strut is both sufficiently stable when using a Wiener rung and easily separable when sliding of two parallel frame profiles. The plastic used should have a strength (yield stress) of 20 to 30 MPa (ISO 527-2), an elasticity and toughness (impact toughness) of 20 to 30 kJ / m² at + 23 ° C; 179/1 eA and a Shore D hardness, 3-s-value 58-68 ISO 868 ISO. It may, for example, a polyolefin material are used.

In the following the invention will be described with reference to embodiments in conjunction with the drawing. In which:<dl id="dl0001"><dt>Fig. 1</dt><dd>a perspective view of a connector according to the invention,</dd><dt>FIG. 2</dt><dd>a perspective view analogous to <figref idrefs="f0001">Fig. 1</figref>, A modification of the connector,</dd><dt>Fig. 3</dt><dd>a rear end view of the in <figref idrefs="f0002">FIG. 2</figref> connector shown,</dd><dt>Fig. 4</dt><dd>a plan view of the in <figref idrefs="f0002">FIG. 2</figref> shown connector,</dd><dt>Fig. 5</dt><dd>different mounting options of the connector according to the invention,</dd></dl><dl id="dl0002"><dt>Fig. 6</dt><dd>an enlarged detail view of the outer leg of the connector according to the invention,</dd><dt>Fig. 7</dt><dd>an enlarged detail representation, analogous to the embodiments of <figref idrefs="f0004">Fig. 5</figref>With two mutually parallel frame sections, and</dd><dt>Fig. 8</dt><dd>an illustration in the assembled state, analogue <figref idrefs="f0006">Fig. 7</figref>, When using a Wiener rung.</dd></dl>

In the different embodiment examples, identical parts are provided with the same reference numbers.

The <figref idrefs="f0001">Fig. 1</figref> and <figref idrefs="f0002">2</figref> respectively show a perspective view of the connector according to the invention. This includes a base plate 2, from which parallel to each other two äuβere legs 3 and 5 and a central leg 4 extend. The two outer legs 3 and 5 are each provided on their outer side with a plurality of fins, by means of which the connector can be anchored or claws on the inner side of a frame profile. 13

a plurality of fins 1 are on his to the interior of a frame formed by frame hollow profiles facing side thus inventively provided which extend at right angles to the leg 3; 5. The fins have, such as in<figref idrefs="f0005">Fig. 6</figref> shown, a mutual distance A to which 1.5 to 2.0 mm, preferably amounts to 1.75 mm.

In particular from the <figref idrefs="f0003">Fig. 4</figref> and <figref idrefs="f0005">6</figref> it can be seen, the free end of each slat 2 beveled so that a cutting edge 7 results. This is addressed in the embodiments shown against the insertion direction, it can also be provided in a different orientation.

5 to ensure a secure fastening of the outer legs 3, in the respective hollow frame profile, it is preferred that the total height of the leg 3, 5 as well as of the slats 1, as shown in <figref idrefs="f0005">Fig. 6</figref> shown is larger than the height of the frame hollow profile, preferably the total height H of 0.2 mm larger than the clearance height of the frame hollow profile.

The two outer legs are each substantially rectangular shaped and provided on its, the middle leg side facing with ribbing 8 which engages the inner surface of the frame profile and is supported against this and digs. The dimensioning of the outer legs 3, 5 is adapted to the respective frame section. The same applies for insertion bevels, rounded to facilitate insertion and the like. For this purpose, reference may be made to the prior art, in particular regarding the design of the different frame profiles.

In particular from the <figref idrefs="f0004">Fig. 5</figref>. <figref idrefs="f0006">7</figref> and <figref idrefs="f0007">8th</figref> It can be seen, the connector according to the invention, by means of a fastening element 6, for example in the form of a screw be fixed to the respective frame section. In order to ensure centering of the screw and push or move around the screw head can, preferably, is a central recess 9 is provided which can be designed conical or groove-shaped (see in particular<figref idrefs="f0001">Fig. 1</figref> and <figref idrefs="f0002">2</figref>).

For fixing, guiding and fixing the fastener 6 of the central leg 4 is formed chamber-like or honeycomb-like. It consists of longitudinal webs 11 and transverse webs 12. The two internal longitudinal webs 11 are spaced so that their distance substantially to the core diameter of the fastening element 6 (screw) is the same. Hereby, the retraction force and the fixing effect increases.

In particular from <figref idrefs="f0003">Fig. 4</figref> It can be seen the two outer legs 3 and 5 and the center leg 4 are connected via struts 10 which can pierce each slightly or are separated when two mutually parallel frame sections 13 are attached, so as in <figref idrefs="f0006">Fig. 7</figref> is shown in the assembled state.

The <figref idrefs="f0004">Fig. 5</figref> shows different embodiment variants, is in which the connector according to the invention connected by means of two parallel frame sections 13 for forming center struts. For simplicity was only shown a fastener. 6

The <figref idrefs="f0005">Fig. 6</figref> shows, as mentioned, is an enlarged detail view of the outer legs 3 and 5 to illustrate the embodiment of the lamella first

The <figref idrefs="f0006">Fig. 7</figref> and <figref idrefs="f0007">8th</figref> each show detailed views in the assembled state. The<figref idrefs="f0006">Fig. 7</figref>, corresponds to the representation of the<figref idrefs="f0004">Fig. 5</figref> and illustrates the use of two parallel frame profiles 13 to form a T-center cross-leg on another frame profile 13. In contrast, shows the <figref idrefs="f0007">Fig. 8</figref> a representation in which a so-called. Wiener rung 14 is pushed onto the connector according to the invention. It is especially seen that the two struts 10 are not severed.

LIST OF REFERENCE NUMBERS

<dl id="dl0003" compact="compact"><dt>1</dt><dd>lamella</dd><dt>2</dt><dd>baseplate</dd><dt>3, 5</dt><dd>outer leg</dd><dt>4</dt><dd>Mean leg</dd><dt>6</dt><dd>fastener</dd><dt>7</dt><dd>cutting edge</dd><dt>8th</dt><dd>knurl</dd><dt>9</dt><dd>recess</dd><dt>10</dt><dd>strut</dd><dt>11</dt><dd>longitudinal web</dd><dt>12</dt><dd>crosspiece</dd></dl><dl id="dl0004" compact="compact"><dt>13</dt><dd>frame profile</dd><dt>14</dt><dd>Vienna sprout</dd><dt>A</dt><dd>distance</dd><dt>H</dt><dd>overall height</dd></dl>