Sectional lifting door or folding door

Rzeczpospolitej Polskiej (21) Application number: 356773 (22) Application date: 18.01.2001 (86) Date and number of the international application:

2001, PCT / DE01 / 000224 (87) Date and publication number of the international application:

2001-08-02, WO01 / 55543 (11) 206477 (13) B1 (51) Int.Cl.

E06B 3/48 (2006.01) E05B 65/00 (2006.01) E05B 65/24 (2006.01) (54)

Multiple-section lift or sliding-folding door

<td></td><td>(73) The right holder of the patent:</td>

<td>(30) Priority:</td><td>Niewohner Bruno, Grtersloh, DE</td>

<td>24/01/2000, DE, 10002980.9 29.07.2000, DE, 10037329.1</td><td>(72) Inventor (s):</td>

<td></td><td>BRUNO NIEWOHNER, GMersloh, DE</td>

<td>(43) Application was announced:</td><td></td>

<td>12.07.2004 BUP 14/04</td><td>(74) Representative:</td>

<td>(45) The grant of the patent was announced:</td><td>item. stalemate. Grabowska, Małgorzata SULIMA GRABOWSKA SIERZPUTOWSKA</td>

<td>August 31, 2010 WUP 08/10</td><td>PATENTS AND TRADEMARKS OFFICE general partnership</td>

PL 206 477 B1

Description of the invention

The subject of the invention is a multi-section lift or sliding-folding door.

Multiple-section lift doors or sliding-folding doors have been known and used for a long time. They consist of plate-like, substantially rectangular members, whereby two adjacent members can deviate from each other on a common, horizontal axis of rotation running parallel to the longitudinal sides of the members. The material used for these members is, inter alia, light metal, such as, for example, aluminum. A distinction is made here between overhead doors, in which the members rotate substantially 90 ° when lifted and in the open state, the gate runs parallel to the ceiling, and sliding-folding gates in which the adjacent members fold in accordion when opened. These gates are used to close large openings in buildings, such as garage or industrial doors, without the need for wide opening of the rigid door leaf.

In order for single persons to pass through the gate, without having to open the entire gate, solutions are known to insert the door into such gates, the door leaf also consisting of several mutually pivotable members, and the rotation axes of these door leaf members run coaxially with the above-described axes of rotation. In order to increase the stability of the structure, the door is inserted into the frame consisting of horizontally and vertically running frame elements. Such a door can also be used as an escape door, for example in the event of a fire, when the door cannot be opened in the usual way. Such gates are known from EP A 0 936 339 and US A 4 603 723. These gates have door elements or thresholds on the lower side in the area of ​​the door, the individual door elements being connected to the door by means of horizontal sliding pins. Moreover, DE A 383055 discloses a door integrated in the gate.

A disadvantage of the previously known gates with inserted doors is that on the lower side of the door there is a door element that always runs horizontally or a threshold which, especially in emergency cases, when it is necessary to leave the building quickly, is an obstacle on which people can fall and injure themselves. and which makes it difficult to evacuate the building. Such a threshold has hitherto been regarded as necessary because, firstly, it serves to provide sufficient stability to the entire gate structure when closed, and secondly, it prevents twisting of the bottom floor member with respect to the main plane of the door when the door is open. Thus, even after the door leaf has been closed to the stable frame in the door opening, there is no displacement of the hinged door leaf members in relation to the door. This threshold is also the reason why this type of door is not considered an escape route.

Starting from the state of the art, the invention has been given the task of designing a lifting or folding door with a door in such a way that it is possible to eliminate the horizontal threshold below the door leaf without compromising the stability of the door leaf structure, and that during opening the door member does not twist or the door leaf moves with respect to the door.

A vertical lifting or sliding-folding door according to the invention, consisting of a plurality of sections, adjacent sections pivoting from one another frontally on horizontally extending pivot axes, with a door consisting essentially of a door and a leaf, the leaf being it consists of several door leaf members pivoting relative to each other, the rotation axes of which run coaxially with the rotation axes of the door members, the door leaf or the door frame has at least one opening, at least one sliding pin is displaceable axially and horizontally in the main plane of the gate, and the sliding pin enters the opening after the door is closed, characterized in that the door leaf in the closed state the door extends all the way to the floor, with the sliding pin being placed in the floor area of ​​the door frame or door leaf.

The idea of ​​the invention is that the door leaf is fixed with respect to the door and the gate by means of at least one sliding bolt and at least one locking element that is actuated by it. The pin is displaceable axially, i.e. along its longitudinal axis, in a horizontal direction in the main plane of the gate. It can be placed in the door leaf or in the frame surrounding the door. For the purpose of fixing, there is an opening in the frame or in the door leaf which cooperates with the sliding pin, i.e. its depth or diameter is adapted to the dimensions of the pin. In order to fix the door leaf in the closed state, a pin is axially displaced in the bottom part of the door leaf or door frame, so that the pin enters the opening and blocks the movement of the leaf or its bottom part perpendicular to the main plane of the door. For this purpose, the sliding pin is ideally positioned on the side of the door leaf opposite to the hinge, on which is also the door handle and lock.

An advantage of the invention is that the door leaf extends to the floor, which allows the door to be used as an escape route as there is no potential door sill obstruction. Moreover, when the door is raised, at least the bottom door leaf member is positioned with respect to the surrounding door member, so that the door does not twist or the door leaf moves with respect to the door.

An advantageous development of the invention consists in the fact that on the path of movement of the sliding pin to and from the opening there is a pivoting locking element arranged next to this opening, preferably a latch, which is laterally pressed or laterally displaced by this sliding pin, this locking element being engageable by its catch. the end with the edge of the retaining strip on the door or gate section. After the locking element is pivoted and latched, the movement of the door leaf or at least its floor member is automatically blocked in the main plane of the door.

When the sliding pin is in the door leaf and there is a suitable opening in the door frame, the locking element must also be in the door frame and it grabs the holding bar which is then placed on the door leaf.

Preferably, there are a greater number of sliding bolts for positioning the door leaf with respect to the door frame, in particular at the lateral lower and upper edges of the door leaf, and there are also a greater number of locking elements, for example latches. This makes it possible to fix the sash in several places, and in particular in the case of a sash composed of several members, these bolts and locking elements can be arranged on the lateral lower and / or upper edges of the door to eliminate mutual displacement of the individual members of the door leaf.

Preferably, the door frames are provided with sliding bolts and retaining strips, and the door leaf has openings and locking elements. This configuration allows the drive of the sliding bolts described below to be placed also within the door frame, i.e. in the gate.

Alternatively, the door leaf has sliding bolts and retaining strips, and the door frames have openings and locking elements. In this case, an energy supply can be realized in an appropriate manner, for example, a power cable for the electric bolt drive can be led from the gate to the door leaf via an electric cable.

Preferably, the sliding pins are electromagnetic and / or hydraulic and / or pneumatic and / or mechanical. The mechanical drive of the sliding pin can be, for example, a latch lock that is customary for doors, i.e. the pin is actuated by a spring force and is inserted into the opening. For this purpose, the tip of the spindle can also be rounded in the form of a hemisphere, so that it can be latched into position and exit the bore. In addition, the skilled person is able to attach any mechanical device that fixes the sliding pin in the closed position as soon as the gate is lifted.

A further advantageous development of the invention consists in the fact that in the lower periphery of the door leaf there are one or more bolts arranged vertically in the plane of the main gate, which engage one or more openings in the floor when the gate or door is closed. An additional pin displacement, if desired for safety reasons or required, can also be achieved in the above-described manner. In both versions, the bolts primarily serve to stabilize the gate in the closed position, i.e. to block the movement of the gate or door perpendicular to its principal plane. Such movement, for example in the presence of strong winds, could permanently damage the door. The additional movement of the bolts via the drive can serve, especially in the door area, as an additional security against unauthorized use.

Preferably, the length of these spindles is three to eight times their diameter. When the appropriate material is selected, especially steel or stainless steel, pins of this size can absorb the maximum bending moment perpendicular to their longitudinal axis without deformation due to such bending.

Preferably, at least two vertically arranged pins are axially displaceable, preferably these pins as vertically displaceable tappets drive the displaceable pins.

PL 206 477 B1

Advantageously, the sliding pins have a drive for their pull-back movement from the associated openings, consisting of pushers formed in the upper part in the form of a rack, mating teeth and a tension member in the form of a steel strip.

Preferably, the sliding pin is pulled out of the bore against the force of the compression spring.

When closing the gate, the sliding bolts are pulled back and the door is released. When opening the gate, the sliding pins, under the pressure of springs, return into the openings and block the door.

Simultaneously with this process, the door sections are secured by locking elements which overlap the retaining strips as described above.

As a result, such cooperating devices block the door when opening the gate and, after closing, allow the use of the door.

In order to increase the safety in use of the door, it is proposed that on the lower edge of the door there is preferably an electrical safety contact strip, in particular of three parts, which allows the strip sensor to move vertically against the spring force.

If there is an object or a person under the door during closing, the contact strip, due to the resistance of this object, moves in relation to the gate and the electrical contact closes, which is connected with the automatic disconnection of the gate drive. Preferably, such a securing strip is three-part, i.e. one strip is provided on the left and right sides of the gate and the door at the bottom edge. Preferably, the automatic disengagement of the gate drive comprises an electric disengagement system in the event of a resistance against each of the three parts of the protective contact strip.

Preferably, the safety contact strip part of the safety contact strip located in the lowest member of the door leaf is foldable or vertical, since the door can only be opened slightly when the contact strip is not resting on the floor.

Preferably, the pivoting or vertically lifting part of the safety contact strip is driven by a suitably designed drive when opening the door.

Preferably, the drive is operated on opening via an active connection, preferably by means of a door handle.

In order that the door can also be used as an escape route, an emergency lock is preferably arranged on the door. It allows you to open a locked door from the inside, for example by simply pressing the handle downwards. This enables people to be quickly evacuated from the building, even if they do not have the appropriate door key.

Preferably, the vertically arranged pins are slidable and, like the pushers, are in operative engagement with the handle and / or the door lock.

Moreover, preferably, this active connection is an electromagnetic and / or hydraulic and / or pneumatic and / or mechanical connection, in particular in the case of a mechanical connection via a lever mechanism pivoting at the level of the horizontal axes of rotation.

In the case of an intended drive, spindles running vertically at the lower edge of the door leaf, it is recommended to actively connect it to the door handle or lock. This means that when the handle is pressed or the lock is actuated, for example to open a door, the bolts are displaced synchronously. In order to open the door, the bolts have to come out of the holes in the floor, and when closing, they slide into these holes.

Here, too, the spindles can be driven as described above and, for example, when the door is opened, an electrical contact is closed, which causes an electric or electromagnetic drive of the spindles to be actuated. In particular, a mechanical active connection between the bolts and the door handle is proposed, which is in the form of a lever, and at the height of the door lock it is equipped with a rack cooperating with a toothed quadrant, which is turned by the door handle on a horizontal axis. In this case, the lever or the slider connected to the pin at the level of the horizontal pivot axes around which the individual adjacent members pivot relative to one another must also have a coaxial joint to allow it to be folded or folded in when opening the gate.

In order to block the movement of the door leaf in the horizontal direction in the main plane of the door, the door leaf and / or the vertical strips of the door frame (10) are preferably equipped with hook elements that engage with the projections on the vertical frames (10) and / or on the side of the door leaves.

PL 206 477 B1 in the closed position of the door. In particular, these hooks are placed in the area of ​​the bolts in order to prevent the gap between the leaf and the door frame from being pulled off, for example during opening.

Preferably, on both narrow sides in the lower part of the door there is a pressure roller in the closing state of the door in rolling contact with a centering or locating cam located in the lower part of the door arch. Thanks to this, the gate and the door in the lower part are guided together, their position is fixed and the pins are centered over the holes.

This allows the sliding pin to be inserted accurately into the opening, the locking element being pivoted so that it overlaps the retaining strip and, at the same time, electrical contact is established between the individual parts of the safety contact strip.

Preferably, the pressure rollers in the remainder of the arches are in rolling contact with the rails or are free to move.

In order to obtain the exact centering which ensures the correct operation of the closing mechanism, the ramp height of the centering or locating cam (18) is preferably adjustable.

The subject of the invention is illustrated in the drawing, in which fig. 1 shows a multi-segment lift gate with a door, fig. 2 - a gate in a half-raised state, in section, fig. 3 - a door member in a horizontal section, fig. 4 - door in vertical section, fig. 5 - door at the height of the gate rollers, vertical section, fig. 6 - gate in the area between the handle and the upper edge of the door, in horizontal section, fig. 7 - fragment from fig. 6, fig. 8 - fragment of the horizontal section of the door in the door frame area, fig. 9 - fragment of the vertical section of the door in its lower part.

Fig. 1 shows a multi-section lifting door which is made up of a series of substantially rectangular members 1 which can deflect relative to each other about horizontal pivot axes 2 extending parallel to their longitudinal sides. In order to allow people to pass through the gate without having to open it, a door has been provided, the leaf of which consists of individual members 4, the horizontal axes 5 of rotation between adjacent door members 4 being coaxial with the above-mentioned rotation axes 2 of the gate. On the lower edge of the gate and the door there is a three-part electric safety contact strip 3, which is coupled with the automatic door drive disconnection system.

Fig. 2 shows the gate in a half-lifted state. In this case, in the corner between the wall and the ceiling, the individual members 1 are rotated substantially by 90 [deg.] So that when fully open, the door runs parallel to the ceiling.

FIG. 3 shows the two lowest bottom members 4 of the lifting door in the closed state according to the invention. The lowermost member 4 rests substantially with its lower edge on the floor 6, and an additional rubber sealing lip can be provided thereon for sealing. Arranged in the main plane of the gate and axially movable as far as possible in the vertical direction, the pin 7 here engages a corresponding opening 8 in the floor 6 below the gate, as indicated by the arrow. This blocks the movement of the gate or door perpendicular to the plane of the gate, e.g. under wind pressure. Between the two members 4 there is a pivot axis 5, freely arranged by a specialist, on which both members 4 can deflect relative to one another. . In order to simplify the drawing, the drive for spindles 7, 9 is not shown here. It can be designed in various ways, so it can be an electromagnetic, hydraulic, pneumatic or mechanical drive, and it can also be connected to a suitable electronic control system.

Fig. 4 shows a vertical section of a gate member 1 with a door wing member 4. On the left and right side of this leaf there is one sliding pin 9, which can slide axially in the horizontal direction in the main plane of the gate, as indicated by arrows in the drawing. It can enter into corresponding openings 11 in the support 10, which are provided in the door opening on three sides. A freely selected drive 12 is used to move the pins 9.

Fig. 5 shows the door in a vertical section at the height of the rollers. In the lower part of the door there are two rack-shaped pushers 13, the movement of which is directed via toothed wheels 14 (pinions) and a steel strip 15 onto the sliding pins 9. When the door is closed, the steel strip 15 is wound up. In this case, the bolts 9 are pulled out of the holes 11 and the compression spring 16 is tensioned, which, when it is released, moves the bolts 9 back into the holes 11 when the gate is opened.

PL 206 477 B1

On the narrow side of the door there are pressure rollers 17 which, when closing the door, engage the centering or locating cam 18 and center the door. When the gate is opened, they roll on the rails 19 in the upper part of the gate door.

Fig. 6 shows the door in a horizontal section with the door partially open. One can clearly see the holding strips 20 or stops placed on the door, for which locking elements 21, for example latches, are grasped on the door, to fix the door in the door 10.

Fig. 7 shows a part of Fig. 6, in which one can see the mutual arrangement of the rollers 22 and the pressure roller 17.

Fig. 8 shows the door and doorway in a section at the height of the sliding bolts 9. It can be seen the retaining strip 20 and the locking element 21 which enter the cross section of the path of movement of the bolt 9 and are turned through it when the bolt 9 is moved so that the latching end overlaps with it. edge of the holding bar 20 on the individual gate or door section.

Fig. 9 shows the lower part of the door in section. You can see here the protective contact strip 3 and the locking element 21 entering the cross section of the sliding path of the pins 9, as well as the holding strip 20.