EP0665355B1 - Hinge arrangement on fire-protective doors - Google Patents

Abstract

The arrangement has a frame strap part for fitment on the front surface of the fixed frame. It has a panel strap part intended for fitment on the front surface of the panel. A strap pin vertically fitted in the application position engages in the strap parts in order to pivot them hingedly against one another. The strap parts (3,4) are of aluminium and are provided on the fixed frame and the locking components (14,15) of steel on the panel. On closure of the panel the strap parts can be brought to engagement on their facing edges so that the panel is blocked against movement vertically out of the lock position.

Description

The invention relates to a hinge arrangement on fire-retardant doors of the type corresponding to the preamble of claim 1.

Fire-retardant doors are approved. The prerequisite for this is the passing of a test in which the door is exposed to a temperature of 1000 ° C, which it must withstand for a certain time without falling out of the frame and exposing the door opening unprotected. The known fire-retardant doors therefore have steel fittings that can withstand the temperature mentioned.

Aluminum fittings are widely used for doors, windows and the like nowadays, and in particular the hinges in plastic or aluminum frames often consist of strap parts which are made of extruded aluminum. These tapes are available on the market. They are very well received because their design is modern and appealing. Examples can be found in document EP 271 053 A2, which is considered to be the closest prior art. A similar band for a container is described in US-A-3,962,749.

Such fittings are naturally not suitable for fire-retardant doors because the melting point of aluminum is about 670 ° C and the fittings would have melted away at the test temperature of 1000 ° C.

The invention has for its object to further develop a generic fitting arrangement so that the use of commercially available aluminum strips is also possible for fire-retardant doors.

This object is achieved by the invention reproduced in claim 1.

The basic idea here is to assign locking elements made of steel to the aluminum strips that are responsible for opening and closing the leaf in normal operation, which are still able to hold the leaf closed in the event of a fire if the aluminum strips should have melted away.

This basic idea is already known per se on a sliding door from EP 551 961 A1. The sliding door is suspended from plastic rollers on aluminum guide rails. Hook-like parts made of steel are provided, which come into engagement when the sliding door is closed and keep the sliding door closed in the event of a fire.

In the invention, the plate-shaped fastening parts of the locking members are arranged under the band parts and to a certain extent form a permanent base for the same.

If the floor plans of the plate-shaped fastening parts coincide with those of the band parts according to claim 2, the design can be such that the presence of the locking members is hardly noticed to the outside, because the appearance is predominantly characterized by the commercially available aluminum fittings.

In the event of a fire, i.e. when the aluminum fittings have melted away, their fastening screws are loose. So that the locking elements do not become loose in the event of a fire, it is recommended that they are not only fastened by fastening screws of the band parts, but that they have their own fastening screws, which as steel parts are not affected by the melting away of the band parts (claim 3).

The fastening screws of the band parts can reach through the plate-shaped fastening parts of the locking members (claim 4).

Centering bushes can be provided according to claim 5, which remain in the event of fire and prevent rotation of the plate-shaped fastening part in the plate plane while the plate-shaped is fixed Fastening part perpendicular to its plane is guaranteed by the existing own fastening screw.

The mutual engagement of the locking parts when closing the wing can be brought about in the manner set out in claim 6. Claim 7 specifies an embodiment of this solution for the case of a door in which the front surface of the frame and the front surface of the wing lie in one plane, the approach of one locking member resting on the fastening part of the other locking member when the wing is closed. Claim 8 is directed to an alternative to this, in which the offset does not have to be present or does not have to be so strong because the projection can engage in a cutout of the fastening part of the other locking member.

Claim 9 is directed to a modified embodiment, in which the other locking member has an angled leg and the "approach" is formed by a pin which engages in a bore of the first locking member.

An embodiment of the locking parts that is important in practice is the subject of claim 10. This configuration enables the right-left use of the locking parts, so that the same locking parts can be used for both types of stops and the stockkeeping is simplified.

• Fig. 1 ist eine Vorderansicht eines erfindungsgemäßen zweiteiligen Bandes;
• Fig. 2 ist ein Schnitt nach der Linie B-B in Fig. 1;
• Fig. 3 ist ein Teilschnitt nach der Linie C - C in Fig. 1;
• Fig. 4 ist ein Schnitt entsprechend Fig. 2 bei weggelassenem Band;
• Fig. 5 ist eine Ansicht gemäß Fig. 4 von oben, die also nur die ineinandergreifenden Verriegelungsglieder erkennen läßt;
• Fig. 6 ist ein Schnitt nach der Linie E-E in Fig. 5;
• Fig. 7 ist ein Schnitt entsprechend Fig. 2, wobei nur das Band mit einer anderen Ausführungsform der Verriegelungsglieder dargestellt ist;
• Fig. 8 ist ein aus Fig. 7 herausgezeichneter Schnitt nur der Verriegelungsglieder;
• Fig. 9 ist eine Ansicht entsprechend Fig. 5 gemäß Fig. 8 von oben.
• Fig. 10 ist eine Ansicht entsprechend Fig. 1 eines Scharnierbandes bzw. eines dreiteiligen Bandes;
• Fig. 11 ist eine Ansicht entsprechend Fig. 5 bei weggelassenen Bandteilen;
• Fig. 12 und 13 sind Vorderansichten von Verriegelungsteilen bei einem zweiteiligen bzw. dreiteiligen Band mit Rechts-Links-Verwendbarkeit;
• Fig. 14 ist ein Querschnitt nach den Linien 14-14 in den Fig. 12 und 13.

Exemplary embodiments of the invention are shown in the drawing.

• Fig. 1 is a front view of a two-part band according to the invention;
• Fig. 2 is a section along the line BB in Fig. 1;
• Fig. 3 is a partial section along the line C - C in Fig. 1;
• Fig. 4 is a section corresponding to Figure 2 with the tape omitted.
• Fig. 5 is a top view of FIG. 4, the thus only shows the interlocking locking members;
• Fig. 6 is a section along the line EE in Fig. 5;
• Fig. 7 is a section corresponding to Fig. 2, showing only the band with another embodiment of the locking members;
• Fig. 8 is a section of only the locking members drawn from Fig. 7;
• FIG. 9 is a view corresponding to FIG. 5 according to FIG. 8 from above.
• FIG. 10 is a view corresponding to FIG. 1 of a hinge band or a three-part band;
• Fig. 11 is a view corresponding to Fig. 5 with the band parts omitted;
• 12 and 13 are front views of locking parts in a two-part and three-part band with right-left usability;
• Fig. 14 is a cross section along lines 14-14 in Figs. 12 and 13.

If the term "front", "rear", "top" or "bottom" is used in the following, the strap is always meant in its assembled position.

In Fig. 1 is shown as a whole with 100 hinge assembly with a two-part band 10, the frame hinge part 3 for attachment to the flat front surface 5 of the fixed frame 1 and the wing hinge part 4 are attached to the flat front surface 6 of the sash frame 2. The band parts 3, 4 are connected to one another by a vertical band pin 7 and can be pivoted about a hinge axis 8 relative to one another. In the band parts 3, 4, the fastening screws 21, 23 are accessible from the front through holes 9, 11. When the band arrangement 100 is fully assembled, the bore area is closed by covers 12, 13.

The formation of the band 10 in detail is not important and is therefore not explained further.

Between the front surfaces of the fixed frame 1 and the wing 2 locking members 14,15 are provided, which with plate-shaped fastening parts 14 ', 15' between the band parts 3 and 4 and the corresponding front surfaces 5,6 of the fixed frame or the sash frame and the rear sides 16,17 of the Band parts 3.4 are arranged. As can be seen in particular from FIGS. 4 and 5, in the exemplary embodiment the locking member 14 arranged on the fixed frame 1 has a forward angled portion 18 on the edge facing the wing 2 with a recess 19 into which an extension 20 of the other Interlocking member 15 engages when closing the wing. Since the front surfaces 5 and 6 and thus also the fastening parts 14 ', 15' lie in the same plane, the projection 20 is bent forward by more than the thickness of the fastening part 14 ', as shown in FIGS. 2 and 4.

From Figs. 1 and 2 it can be seen that the plan of the fastening parts 14 ', 15' corresponds to that of the foot parts of the band parts 3.4 and the fastening parts 14 ', 15' are arranged exactly under these foot parts, so that the presence of the Locking elements 14, 15 can hardly be seen directly from the front.

The fastening part 14 'is independently connected to the frame 1 by its own fastening screw 21 which passes through the fastening part 14' and engages in the fixed frame 1. The fastening screw 21 is screwed into a threaded piece 22 arranged on the inside of the fixed frame designed as a hollow profile. The head 21 ′ of the fastening screw 21 is seated in a corresponding recess in the band part 3.

The band part 3 in turn is fixed by fastening screws 23 which pass through the fastening part 14 'and also engage in the threaded piece 22. The fastening screws 23 are surrounded by centering bushes 24 made of steel, which engage in the band part 3 and the fixed frame 1 and the fastening part 14 ' reach out. As can be seen from FIG. 3, the locking part 14 is thereby connected in a rotationally fixed manner to the frame 1 regardless of the presence of the band part 3 and is pulled against the frame by the fastening screw 21. The fastening screws 23 are slightly higher with their heads 23 'than the fastening screws 21, which is indicated by dashed lines in FIG. 4 because, as can be seen in FIGS. 2, 3 and 7, they have their heads 23' on paragraphs 3 ', 4 'of the band parts 3.4 sit on.

The locking member 15 is fastened accordingly, as can be seen from FIGS. 5 and 6.

2 and 4, covering profiles 25, 26 are indicated in front of the front surfaces 5, 6 of the fixed frame 1 or of the wing 2 and have cutouts for receiving the locking members 14, 15.

7 to 9 show a modified embodiment in which the band parts 3, 4 interact with locking members 34, 35 which have angled portions 38, 36 on the sides facing one another. In the bends 38 there are holes 39 into which lugs 40 of the locking member 35, which are designed as pins 40, engage. The pins 40 are preferably pressed into the bend 36 or welded to it. In the exemplary embodiment, two such pins 40 are present. The attachment takes place as in the embodiment of FIGS. 1 to 6.

10 and 11, a band arrangement 200 is shown with a three-part or hinge band 50, the parts of which, like the parts of the two-part band 10, are made of extruded aluminum. Here too, locking members 44, 15 are provided, of which the locking member 15 matches the corresponding locking members of FIGS. 1 to 6. The locking member 44 is longer according to the height of the band 50. However, like the locking member 14, it has a forward bend 18 with a recess 19 into which the extension 20 of the locking member 15 engages.

The locking members 14 of FIGS. 5 and 34 of FIG. 9 must be kept available in different versions for right-left stop. This is different with the locking member 44 of FIG. 11, which is mirror-symmetrical to a central plane perpendicular to the hinge axis 8 (FIG. 10). It can therefore be used both for the left stop and by simply turning it for the right stop.

12 to 14 show further exemplary embodiments with right-left usability. The locking member 54 of FIG. 12 is mirror-symmetrical to the center plane M and has in its fastening part 54 'according to FIG. 12 both above and below the center line M recesses 49 into which the shoulder 30 of the fastening part 55' of the locking member 55 of the side, so it can intervene through the bend 18.

Two such recesses 49 are provided at the same distance from the center plane M, only one of which is in operation. The other recess 49, the lower one in the exemplary embodiment in FIG. 12, remains unused and only comes into action when the locking member 54 is to be struck on the opposite side.

The approach 30 consists of a kind of tongue on the locking member 55, which is a little raised when punching in the manner shown in FIG. 14 to leave room for the movement of the locking member 55 and also a certain flexibility to bridge tolerances.

The band parts 3, 4 are attached to the locking members 54, 55 in the manner shown in FIG. 2. The locking member 54 extends over the entire height of a two-part band. The upper area of the locking member 54 which is not covered by the band parts 3, 4 during assembly is given a separate cover 60 in the form of a plastic molded part of the cross section shown in FIG. 14, which engages on the rear side in a bore 61 of the fastening part 54 'by means of a hollow pin 62 and is held there by a clamping or snap action.

FIG. 13 shows the corresponding for a hinge arrangement 200 with a three-part or hinge strap 50 corresponding to FIG. 10. The locking member 55 corresponds to the locking member 55 of FIG. 12 with a tongue-shaped projection 30 projecting towards the other locking member 64, which is not or only slightly cranked. The locking member 64 largely corresponds to the locking member 44 of FIG. 11 and is mirror-symmetrical to a central plane M perpendicular to the hinge axis. In this case, too, the projection 30 engages in a recess 49 in the plate-shaped fastening part 64 'of the locking member 64, the outline of which is somewhat larger than the outline of the tongue-shaped projection 30, so that it moves from the right in the manner shown in FIG Recess 49 can engage and is prevented by the overlying part of the bend 18 from moving forward out of the locking member 64.

The parts of the band are located in front of the locking member 55 and in front of the upper and lower thirds of the locking member 64. In the middle third, a cover 60 is provided which corresponds to that according to FIG. 14.

The effect of the steel interlocking locking members 14, 15, 34, 35, 44, 15, 54, 55, 64, 55 is that even if the actual band 10 or 50 should have melted away, the wing 2 does not the drawing level can fall out of frame 1. The approaches 20,30,40, which engage in the recesses 19,39,49, rather hold the wing 2 in the frame, so that it can continue to exert its fire-retardant effect.

Claims (10)

1. Hinge assembly on fire-resistant doors,

   with a frame hinge part made of aluminium and designed for mounting on the front face of the fixed frame,

   with a flap hinge part made of aluminium and designed for mounting on the front face of the flap,

   and with a hinge pin which is vertical in the mounted position and engages in the hinge parts in order to connect these together pivotally to form a hinge,

      characterised in that
      locking members (14, 15; 34, 35; 44, 15) made of steel are provided on the fixed frame and on the flap, comprising a plate-shaped attachment portion (14', 15'; 34', 35'; 44', 15'), each arranged between the respective hinge part (3, 4) and the front faces (5, 6) of the fixed frame (1) of the flap (2) and on closing of the flap (2) they can be brought in engagement with one another at their mutually facing edges in such a way that the flap (2) is held against movement out of the closed position perpendicular to its plane.
2. Hinge assembly according to claim 1, characterised in that the outlines of the plate-shaped attachment portions (14'; 15'; 34', 35'; 44',15') substantially match those of the hinge parts (3, 4).
3. Hinge assembly according to claim 1 or 2, characterised in that the locking members (14, 15; 34, 35; 44, 15) are attached to the front faces (5, 6) of the fixed frame (1) and of the flap (2) by at least one attachment screw (21) of their own.
4. Hinge assembly according to one of claims 1 to 3, characterised in that the attachment screws (23) for the hinge parts (3, 4) engage in attachment threads in the fixed frame (1) and on the flap (2) through the respective plate-shaped attachment portion (14'. 15'; 34',35'; 44',15').
5. Hinge assembly according to claim 4, characterised in that at least one attachment screw (23) of a hinge part (3, 4) is surrounded by a locating bush (24) made of steel which engages in the respective hinge part (3, 4) and the front face (16, 17) of the fixed frame (1) and of the flap (2) and passes through the plate-shaped attachment portion (14', 15'; 34', 35'; 44', 15').
6. Hinge assembly according to one of claim 1 to 5, characterised in that one (14, 34, 44) of the locking members is angled forwards and has an opening (19, 39) in the angled portion (18, 38) in which a projection (20, 40) on the other locking member (15, 35) engages.
7. Hinge assembly according to claim 6, characterised in that, with the front faces (16, 17) of fixed frame (1) and flap (2) lying in the same plane, the projection (20) of the one locking member (15) is joggled forwards by at least the thickness of the material of the attachment portion (14', 44') of the other locking member (14, 44).
8. Hinge assembly according to claim 6, characterised in that, with the front faces (16, 17) of fixed frame (1) and flap (2) lying in the same plane, the plate-shaped attachment portion (54', 64') of the other locking member (54, 64) has a portion (53, 63) for receiving the projection (50) of the one locking member.
9. Hinge assembly according to claim 6, characterised in that the locking member (35) having the projection (40) is angled forwards and the projection (40) is formed by a pin inserted in the angled portion and engaging in a bore (39) in the angled portion (38) on the other locking member (34).
10. Hinge assembly according to one of claims 1 to 9, characterised in that the locking members (34, 44, 54, 64; 15, 35, 45, 55) are made mirror-symmetrical with respect to a central plane perpendicular to the axis (8) of the hinge.

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