EP1247931B1 - Closure sequence controller - Google Patents

Abstract

The door is designed so that one leaf closes before the other which can then be locked. The locking mechanism has at least one axially movable first push rod (5) and a further locking element. A movable locking member (9) is mounted between the push rod and the locking element and in normal operation permits only movement of the first push rod or only movement of the further locking element. An overload protection is provided to guard against faulty sequence.

Description

The invention relates to a closing sequence controller for a self-closing, a standing and a moving leaf door, in particular fire door, wherein the active leaf is detectable by means of a releasable from the inactive leaf locking mechanism.

Two-leaf doors of the type mentioned above overlap each other in the central region, so that the one, a passive leaf door has a stop for the other, forming the active leaf door, to the dense completion of a certain closing sequence is required if the door should be properly closed , For this purpose, closing sequence controllers are used, which always ensure the order required for the aforementioned proper closing order of the transitions of the two wings in the closed position. A certain sequence of closing movement of both door leaves is therefore necessary to allow the usually provided with a lock power leaves only in the closed position, when the door stop forming, usually the strike plate or the like having the inactive leaf is closed.

From DE 33 36 739 C2, a closing sequence controller for a self-closing, a standing and a wing comprehensive door, especially fire door, known whose door is connected via a respective pivot arm to the door frame, wherein the pivot arm of the active leaf by means of a releasable from the inactive leaf Locking member is detected. In this case, the door frame side end of the swing arm of the active leaf is provided with a slidably guided in a mounted on the door frame sliding guide, which is detectable by the locking member. Of the Inactive leaf cooperates with an axially adjustable thrust member which acts to release the determination of the slider on the locking member.

The non-prepublished EP 1111178 A2 shows a further closing sequence control, in which the clamping effect is generated by a rotatable clamping shoe or clamping wedge. The clamping action of the wedge is canceled by a push rod, which is guided in a base body.

From DE 3604091 a closing sequence control with an overload protection according to the preamble of claim 1 is disclosed.

Although this design ensures a safe and reliable closing sequence control, but it consists of a variety of items that not only require a lot of space, but are also expensive to produce. Due to the relatively elongated design, in particular of the thrust member requires the known closing sequence control both when attached to the door as well as during storage a lot of space. The many items make the entire closing sequence controller also relatively heavy and complicated in construction, so that maintenance or repair work can be carried out only with difficulty and time. Because of the large number of parts and the storage and provision of spare parts can be a problem.

The object of the present invention is therefore to eliminate the above-mentioned disadvantages and to provide a mechanical closing sequence controller which ensures a secure closing sequence of a two-leaf door, but achieves this with as few and also simply constructed components.

The solution of this object is achieved by the features of claim 1.

Such a closing sequence controller can z. B. be constructed so that within the sliding guide at any necessary point a base body is used, which is then fixed at the required point. Thus, an individual adaptation to the door sizes or to the closing behavior customizable to the doors. Within the body two parallel bores are provided in the longitudinal direction, in which push rods are inserted, each by the sliders of the

Stand or the active leaf are controlled. These push rods are designed so that they are spring loaded and have stops at their ends. With the push rods together acts the locking member that is inserted within a recess in the body. The locking member is movably disposed within the recess. The locking member is then pushed out of its respective position by the push rods, if it is possible to escape the locking member. In order to allow evasion of the locking member, indentations are in the push rods in the form of a circumferential groove.

As a result of this configuration, a closing sequence controller is provided with few and simply constructed components, which ensures a secure closing sequence. The design has the additional advantage that the entire closing sequence controller is very compact and therefore easy and convenient to install and remove, for. B. in a repair or for maintenance purposes. Since it consists of only a few and relatively small items, not only the storage of the entire closing sequence controller, but also the provision of individual or spare parts is simple and straightforward and requires little space. For maintenance and repair work, the closing sequence controller according to the present invention can be easily installed or removed because of its low weight. Also, a later retrofitting within the slide rail is possible.

The dependent claims have advantageous developments of the invention to the content.

Further details, features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings.

Figuren 1 bis 10:

Den Aufbau und die Arbeitsweise eines erfindungsgemäßen Schließfolgereglers nach einer ersten Ausführungsform.

Show it:

FIGS. 1 to 10:

The structure and operation of a closing sequence controller according to the invention according to a first embodiment.

In Figures 1 to 10, the structure and operation of a closing sequence controller according to a first embodiment of the present invention is shown. This closing sequence controller is particularly suitable for a door in which a moving leaf and a passive leaf (not shown in the figures) are each connected via a pivoting arm with the door frame. Here, the door frame side end of the swing arm of the inactive leaf is provided with a mounted in a mounted on or in the door frame slide 1 slidably guided passive leaf slider 2. Furthermore, the door frame side end of the swing arm of the active leaf is provided with a slidably guided in the sliding guide 1 active leaf slider 3.

The active leaf, the passive leaf, the door frame and the two pivot arms are generally state of the art and therefore not shown or explained in detail here.

The closing sequence controller according to a first embodiment of the present invention comprises a base body 4, which is provided in the sliding guide 1 between the passive leaf slider 2 and the active leaf slider 3 fixed. In the main body 4 are two parallel and in the longitudinal direction of the sliding guide 1 extending holes 5a, 6a for receiving a passive-wing push rod 5 and a walking-wing push rod 6 introduced. Here, the passive-wing push rod 5 and the active leaf push rod 6 in the longitudinal direction of the bores 5a, 6a are displaceable when they are acted upon by the passive leaf slider 2 and the active leaf slider 3. The passive-wing push rod 5 and the moving-wing push rod 6 each have stops 7 at their ends. In addition, each of the two push rods 5, 6 each provided with a circumferential groove 5b, 6b. Both push rods 5, 6 are preferably biased by a respective coil spring 5 c, 6 c in opposite directions in such a way that the passive leaf push rod 5 in the direction of the passive leaf slider 2 and the active leaf push rod 6 in the direction of the active leaf slider. 3 are preloaded.

In the main body 4, a recess 8 is provided between the two holes 5a, 6a, in which a locking member 9 is arranged in the form of a rolling element, preferably a cylinder. The recess 8 is formed so that the locking member 9 can move in a direction transverse to the direction of movement of the push rods 5, 6. In addition, the locking member 9 is sized and arranged so that it protrudes either on the one side or on the other side over the recess 8 and with the protruding part either in the bore 5a for the pommel thrust rod 5 or in the bore 6a for the Active leaf push rod 6 protrudes and engages with the protruding part either in the circumferential groove 5b of the inactive leaf-push rod 5 or in the circumferential groove 6b of the active leaf push rod 6. The locking member is thus embedded floating within the body 4 and is controlled by the push rods 5, 6 by the sliders 2 and 3.

The function of the closing sequence controller will now be explained below.

In Figure 1, the position of the closing sequence controller is shown at the zero position of a door in which both doors are closed. In this position, the passive leaf slide 2 are in contact with the passive leaf push rod 5 and the active leaf slide 3 against the active leaf push rod 6 and bias the coil springs 5c, 6c so that the two push rods 5, 6 are in the position shown in FIG 1 position shown. In this case, the circumferential groove 5b of the inactive pusher rod 5 is located in the region of the recess 8, while the middle of the peripheral groove 6b of the moving leaf push rod 6 is removed by a distance x from the center of the recess 8 or the middle of the blocking member 9. As a result of this arrangement, the locking member 9 is in the bore 5a for the passive-wing push rod 5 and engages in the circumferential groove 5b (see also Figure 3). Thus, the inactive push rod 5 is locked while the active leaf push rod 6 can move freely, so it is not in the locked position.

The distance x between the center of the circumferential groove 6b and the center of the recess 8 and the locking member 9 ensures the holding of the moving leaf slider 3 at the minimum open angle and thus corresponds to the way that the active leaf slider 3 travels to reaching the Mindestoffenhaltewinkels.

If now the active leaf is opened, the active leaf slider 3 moves in Figure 2 to the left. Due to the bias of the coil spring 6c, the active leaf push rod 6 follows the active leaf slider 3 until it rests with its stop 7 on the base body 4. This state, in which the active leaf is opened and the solid leaf is closed, is shown in FIG.

When the active leaf is now closed again, the active leaf slider 3 presses the active leaf push rod 6 back into its in FIG. 1 shown zero position back. The active leaf can thus be opened and closed as desired, as long as the inactive leaf is closed.

If, in addition to the active leaf, the fixed leaf is now also opened (compare FIG. 4), both sliding pieces 2, 3 move away from the main body 4. Here, the active leaf push rod 5 follows the active leaf sliding piece 3 until it touches the base body 4 with its stop 7. In this position, the circumferential groove 6b of the moving-wing push rod 6 lies directly above the recess 8, so that the locking member 9 is now pressed into the peripheral groove 6b of the moving-wing push rod 6 due to the stationary spring push rod 5 under spring tension. Thus, the still-wing push rod 5 is released and moves in Figure 4 to the right until it abuts with its stop 7 on the base body 4. This condition is shown in FIG. The active leaf push rod 6 is now blocked, while the passive leaf push rod 5 is free to move.

Of course, the motion sequence described above also takes place when the active leaf and the fixed leaf are opened simultaneously.

Now close the active leaf and the inactive leaf, the active leaf slider 3 moves against the active leaf push rod 6 and is held in this position, since the locking member 9 has no way to get into the circumferential groove 5b of the inactive push rod 5 and thus the Active leaf push rod 6 locked in the locked position. The passive leaf slider 2 in turn is able to press the passive leaf push rod 5 in its initial position, as this is not in the locked position, so is not hindered by the locking member 9 in its movement. Only when the passive leaf push rod 5 is in the starting position, the moving leaf slider 3 and the spring force can push the locking member 9 in the circumferential groove 5b of the inactive push rod 5 and thus move the active leaf push rod 6 in its zero position and the passive leaf -Schubstange 5 lock. Thus, a correct closing sequence is guaranteed.

The sequence of movements in the closing sequence controller during the closing process is shown in FIGS. 6 to 8.

FIGS. 9 and 10 show a closing sequence controller, as already described above, in which an overload protection is present. For this purpose, located within the base body 4 in the area of the inactive push rod 5, preferably in the region of the locking member 9, an additional recess 10. The recess 10 is in its longitudinal extent laterally bounded by the holes 5a, which merge into the recess 10. The width of the recess preferably extends in the direction of the wall of the sliding guide 1.

If now the active leaf slider 3 is pressed further in the direction of the main body 4, the active leaf push rod 6 can press the locking member 9 with its outer circumference against the outer periphery of the passive leaf push rod 5. This deviates despite the open wing due to the existing recess 10 laterally (see Figures 9 and 10). It is thus a wanton overpressure and thus a closure of the active leaf in front of the inactive wing possible. The overload protection avoids that the closing sequence controller is damaged when z. B. willfully the active leaf is pressed in front of the inactive leaf. It is understood that the base body 4 is formed so that it can be used and fixed at any required location within the sliding guide 1. This gives an individual adaptation to the construction situation of the door.

The foregoing description of the embodiments according to the present invention is for illustrative purposes only, and not for the purpose of limiting the invention.

LIST OF REFERENCE NUMBERS

1

slide

2

Inactive leaf slide

3

Leaf slider

4

body

5

Inactive leaf push rod

5a

drilling

5b

circumferential groove

5c

coil spring

6

Leaf push rod

6a

drilling

6b

circumferential groove

6c

coil spring

7

attacks

8th

recess

9

locking member

10

recess

Claims (9)

1. A closure sequence controller with an overload protection for an automatically closing door, which comprises an inactive leaf and an active leaf, particularly a fire-rated door, the active leaf being lockable by means of a blocking mechanism, which is releasable by the inactive leaf, said controller having at least one axially movable first push rod (5) and at least one axially movable second push rod (6), which is disposed parallel to the first push rod (5), and in that a movable blocking member (9) is disposed between the first push rod (5) and the second push rod (6), characterized in that, during normal operation, the blocking member either allows a movement of only the first push rod (5) or allows a movement of only the second push rod (6), and in that each push rod (5, 6) is provided with a peripheral groove (5b, 6b), and in that the blocking member (9) consists of a rolling element, which is movably supported in an opening (8) in a base body (4) disposed between the two push rods (5, 6) transversal to the direction of movement of the push rods (5, 6) such that a part of the blocking member (9) is always engaged in one of the peripheral grooves (5b, 6b) of the push rods (5, 6).
2. A closure sequence controller according to claim 1, characterized in that the inactive leaf is connected to the door frame via a pivoting arm and the end of the pivoting arm of the inactive leaf at the side of the door frame is provided with an inactive leaf sliding member (2) displaceably guided within a sliding guide (1) mounted to the door frame.
3. A closure sequence controller according any of the preceding claims, characterized in that the active leaf is connected to the door frame via a pivoting arm and the end of the pivoting arm of the active leaf at the side of the door frame is provided with an active leaf sliding member (3) likewise displaceably guided within the sliding guide (1).
4. A closure sequence controller according to any of the preceding claims, characterized in that the two push rods (5, 6) are axially displaceably supported in two parallel bores (5a, 6a) of the base body (4), and that the base body (4) is displaceably disposed and lockable within the sliding guide (1) between the inactive leaf sliding member (2) and the active leaf sliding member (3).
5. A closure sequence controller according to any of the preceding claims, characterized in that the one push rod (5) can be charged by the inactive leaf sliding member (2) and the other push rod (6) by the active leaf sliding member (3).
6. A closure sequence controller according to any of the preceding claims, characterized in that the two push rods (5, 6) are spring-loaded in opposite directions preferably by means of one coil spring each (5c, 6c), and in that each coil spring (5c, 6c) bears against the base body (4) with its one end and against one end of the push rod (5, 6) with its other end.
7. A closure sequence controller according to any of the preceding claims, characterized in that each push rod (5, 6) is provided with an abutment (7) at its end, which preferably at the same time serves as a support for the coil spring (5c, 6c).
8. A closure sequence controller according to claim 1, characterized in that the overload protection consists of at least one opening (10), which is provided in the base body (4) and through which the inactive leaf push rod (5) passes.
9. A closure sequence controller according to claim 1 or 8, characterized in that the overload protection consists of at least one elastically deflecting and yielding push rod (5a).

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