EP0875649A2 - Jamb for fire-retardant or -resistant doors - Google Patents

Abstract

The door frame (1) at least near the hinge-plates (3), on the wall side, has a hollow cavity sealed off by a covering angle-piece (5). The exterior of the door frame, near the cavities, has slots into which the loops of the hinge-plates which are fixed by screws, are accessible through openings on the rabbet side of the frame. The loops are bent at right angles and support nuts (4) on their part further from the hinge-plate. The screws inserted through the openings are screwed to the rabbet.

Description

The invention relates to a frame for fire retardant or fire resistant fire doors, in particular this is positioned before building a wall to become and lost when erecting the concrete wall Part of the formwork is used, the frame at least in Area of the tapes on the wall side by means of a cover bracket or the like. has closed cavity and being on the outside of the frame in the area of these cavities Slits are provided in the tabs of the tapes are insertable, the tabs by means of screws, accessible through openings on the rebate side of the frame are screwed down. The invention also relates a frame with riveted rags and a method for Manufacture of such frames.

Such a frame is known from DE 21 57 991 A, without losing sight of the possibility of using it as lost formwork to be used. The attachment of the Rags are made by pinching them after they are inserted between a kind of washer and the cover bracket.

The fastening screw is inside the cavity arranged and must be on before installing the cover bracket the frame can be mounted, also on the frame side, where the door is not knocked. Another Disadvantage is the risk of concrete entering the nut attached to the cover bracket, which affects the movement of the Screw can destroy.

Another, similar frame is from DE 1 683 609 A. known, with a clamp connection instead of the screw connection is provided between rag and frame. Also in this document will give the possibility of using it not mentioned as formwork part.

Both this attachment and the flat fixation on the cover bracket is only as strong as the cover bracket and with regard to the frame itself only as exactly as that Cover angle, which is a strong and accurate training of the Cover angle is necessary.

In interior fittings, walls made of concrete or Poured lightweight concrete, where it is necessary in the places on which doors are later planned, recesses to leave it free in the wall. This can be done either happen that formwork parts are provided there and that frames are later installed in the wall openings. If the formwork parts are not with the appropriate Precision is provided, it is also after completion of the Wall production work necessary in the area of the frames, Brickwork to be done, causing regular application problems and also to optical shortcomings in the Door area leads. Add to that the high workload and the need to use split frames that are in the wall openings must be inserted piece by piece.

In practice, frames were therefore already lost Formwork parts used, so that in connection with the Formwork boards for the wall surfaces, the frames directly were concreted. This leads to very high strengths and stability and a clean connection to the wall, on the plaster edges of the frames intended for this, but stepped this has the disadvantage that the formwork boards for the wall side surfaces at the point where the tapes on the Project the frame, cut out what On the one hand, work means work that is just next to that Plaster edge is done so that they are carried out carefully must, on the other hand, to destroy the expensive, in itself usable formwork boards.

A frame has already been known to avoid of these disadvantages has a protruding plaster edge, but only then the necessary mechanical stability, which especially during formwork and filling is necessary if it has an appropriate profile the frame is given in this area. The so produced Frames are not only in their manufacture expensive and complex, but also with a given width between the plaster edges with a significantly lower one clear width equipped, so that alike given Passage light width the frame takes up more space. Add to that that with such frames Opening the door leaf by 180 ° is not possible, which at is disadvantageous in many areas of application.

The invention aims to remedy this and a To provide frame, which at usual Dimensional relationships a simple use as a formwork component allowed and the disadvantages of the beginning does not have mentioned frames.

According to the invention this is achieved in that the cloth are cranked and wear nuts on the section away from the belt, by screws, by openings on the fold side the frame are insertable, screwed to the rebate of the frame are.

In a variant, this is according to the invention achieved that the rags are cranked and on the band Section have openings that correspond to openings on the Fold side of the frame are to be brought into line and that the Rags by means of rivets protruding through these openings Fold the frame is attached.

Such a frame can now actually be installed the tapes easily as a lost formwork part used after dismantling the formwork boards the side faces of the walls can have the cranked rags the bands through the slit-shaped openings on the Belt side threaded and using screws or rivets from the rebate side of the frame. This Fastening in the fold area is extremely stable mechanically and makes the cover bracket easy and cheap without great demands on stability and accuracy to execute.

The slots for threading the flaps are preferred Ribbons in the frame mirror after the punching process pushed back like this for the openings for latches or Traps on frames are already known. This makes it possible such slot-like openings on both vertical To provide legs of a frame, so that only To be decided on the spot and after the construction of the wall need, whether a door is hinged on the right or left shall be. In this case it is also how it works is already known, the opening for the bolt and / or the trap of the door on both vertical To provide sections of the fold area and preferred as explained above and known per se, again in the punched out Opening to press a pleasing optical To obtain appearance.

The flap can be attached to the frame using Screwing or riveting, when screwing can either use self-tapping screws or, what is preferred, it can Nuts clamped on the rag, glued or are welded, it being only necessary to note that the Thickness of the slit-shaped openings threading the flap including mother. Because preferably countersunk screws used to protrude on the rebate side of the frame to avoid components, it is necessary to Draw the frame in the screw area, which in turn is a appropriate bending of the flap in this area makes necessary.

die Fig. 1 eine erfindungsgemäße Zarge mit Türe in Frontalansicht,

die Fig. 2 eine Detailansicht in Richtung des Pfeiles II der Fig. 1,

die Fig. 3 einen Schnitt entlang der Linien III-III der Fig. 1,

die Fig. 4 das Detail IV der Fig. 3,

die Fig. 5 die Draufsicht und ein Schnitt durch eine Variante eines erfindungsgemäßen Bandes und

die Fig. 6 eine Detailansicht in Richtung des Pfeiles VI der Fig. I.

The invention is explained below with reference to the drawing. It shows

1 shows a frame according to the invention with a door in a frontal view,

2 is a detailed view in the direction of arrow II of FIG. 1,

3 shows a section along the lines III-III of FIG. 1,

4 shows the detail IV of FIG. 3,

5 shows the top view and a section through a variant of a band according to the invention and

6 is a detailed view in the direction of arrow VI of FIG. I.

As can be seen from Fig. 1, are in an inventive Frame 1 in the area of the hinges to be assembled one can say slit-shaped recesses 2 are provided, at least two on each of the vertical legs the frame 1.

Fig. 2 shows a detailed view according to the arrow II of the Fig. 1 on an enlarged scale and thus represents a view from the rebate side of the frame 1 with part torn away Zargenfalzwand. You can see the location of one tape 3 according to the invention with its press-in nuts 4th

In Fig. 3 is a section along the line III-III of Fig. 1, the welded or on other way fixed angle 5 can be seen, the Penetration of the liquid wall material into the Band fastening area prevented. It can be the angle 5 provided continuously from the floor to the fall of the frame be or only in the area of band fastenings, in the latter Case must be for a lower as well as for a top cover of the space formed by the angle 5 be taken care of to reliably penetrate the wall material to avoid.

As can be seen from Fig. 3, the band 3 with its rag 6 through the slot 2 of the hinge-side mirror Frame 1 has been pushed, which by rotating accordingly during threading despite the multiple kinks Shape of the flap 6 succeeds. The press nuts 4 come thereby aligned to conical indentations 7 of the frame to lie in the rebate area and can be done using countersunk screws 8 are connected to the frame.

To make room for the tapered deep drawing 7, are conical or prismatic elevations (from the frame seen here actually recesses) 9 in the tab 6, that can be embossed, for example.

5 shows a variant of a band 3 in comparison 2 as shown in FIG. 5, the three Fixing screws not aligned along a line are arranged, but offset from each other, whereby the Holding forces can be increased further.

6 shows an embodiment according to the invention Shown for the case of a lock, the in fire protection frames u. Doors beneficial can be used because the recess 10 not only allows the trap to be accommodated, but also the hinge side attached to the door leaf, the bending prevents the door in the event of a fire.

The invention is not based on the illustrated Embodiment limited, but can be different be modified. So it is possible to have more than two Tapes to attach the door leaf to use it can more than three or only two screws or Attachment of each band can be used and it must finally no screw connections are used there is also conceivable, rivet connections or the like. to use.

As can be seen in particular from FIG. 3, jumps in disassembled band 3 the frame nowhere over the neighboring one Wall in front but runs at most in alignment you and can therefore be easily in the formwork between the formwork boards for the actual wall surfaces can be used without damaging the formwork boards or would have to be destroyed. As also from FIG. 3 visible, the opening of the door is guaranteed by 180 °.

It can, as can easily be seen from FIG. 1, also after Once the frame has been installed, it can still be decided whether the door leaf should be hinged on the right or left. Due to the top-bottom symmetry shown in FIG. 5 of the tapes can be done with a right-hinged one as well as with a door hinged on the left can be used so that the inventory and Spare parts supply simple, economical and unproblematic is.

There is no need for the materials for the frame and the hinge compared to conventional frames and hinges. The press-in nuts 4 and the fastening screws 8 can be done by a specialist with knowledge of the forces involved can be easily dimensioned and are commercially available Goods.

As can be seen in particular from FIG. 3, the dimensions are of the flap 6 of the band 3 and the openings 2 and the position of the opening 2 on the frame mirror is also selected that they are in the fully assembled state of the tab 6 as possible close to the outer (distal to the fold), visible edge of the slot 2 comes to rest, and therefore this essentially covers. As the frames are usually delivered primed and are still painted after assembly, the frame according to the invention has an attractive appearance on.

The invention is not based on the illustrated Embodiment limited, but can be different can be varied. So the frame can be called be unequal-mirrored surround frame, and anchors can be provided, particularly in the area of the slots 2 be bent during assembly so that a particularly firm connection of the frame with the surrounding wall takes place. The attachment does not have to go through Screwing is done if this is also preferred, but can by riveting, if necessary also gluing or Welding.

Claims (5)

Frame (1) for fire-retardant or fire-resistant Fire protection doors, which is intended in particular to be positioned when building a wall and at Erection of the concrete wall as a lost part of the formwork to serve, the frame (1) at least in the area of Tapes (3) on the wall side using a cover bracket (5) or the like has closed cavity and being on the outside of the frame in the area of these cavities Slots (2) are provided, in which the tabs (6) Bands (3) can be inserted using screws (8) accessible through openings (7) on the rebate side of the frame are attached, characterized in that the lobes (6) are cranked, nuts on the section away from the belt (4) wear and through the screws (8) through the openings (7) are insertable, screwed to the rebate of the frame are. Frame (1) for fire-retardant or fire-resistant Fire protection doors, which is intended in particular to be positioned when building a wall and at Erection of the concrete wall as a lost part of the formwork to serve, the frame (1) at least in the area of Tapes (3) on the wall side using a cover bracket (5) or the like has closed cavity and being on the outside of the frame in the area of these cavities Slots (2) are provided, in which the tabs (6) Bands (3) are insertable and attachable, thereby characterized in that the tabs (6) are cranked on the far side of the belt Section have openings and by means of rivets, which can be inserted through the openings (7) on the fold of the Frame are attached. Frame according to claim 1 or 2, characterized in that that slots on both vertical legs (2) for receiving of tabs (6) and openings (10) for receiving the Trap or a pin of the door leaf are provided. Frame according to one of the preceding claims, characterized characterized in that the length of the slot (2) to Fold side of the frame projecting part of the flap (6) see above is long that in the assembled state of the band (3) Rag (6) substantially immediately on that of the fold side opposite edge of the slot (2) through this occurs. Process for producing a frame according to one of the preceding claims, characterized in that the Material of the slots (2) and / or the openings (10) punched out and after the punching process back into the frame surface be pushed back where they hold by friction.

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