EP1620626B1 - Hydromechanical closing sequence controller - Google Patents

Abstract

The invention relates to a hydromechanical closing sequence controller for double-leaf doors, comprising a fixed leaf and a moving leaf, whereby both the fixed leaf and the moving leaf are each operated by a hydraulic action door closer (1, 2), each of which is provided with an axis (3). According to the invention, a hydromechanical closing sequence controller which guarantees a secure closing sequence which is achieved with the least possible number of components of simple construction can be achieved, whereby a cam wheel (5) is arranged on the axis of the door closer for the fixed leaf, cooperating with a valve (7) which controls the door closer of the moving leaf, or a slide piece on the fixed leaf cooperates with the valve (7) which controls the door closer on the moving leaf.

Description

The invention relates to a hydraulic-mechanical closing sequence control for double-leaf doors.

Such a closing sequence regulation is from the EP 0 141 902 known. There actuates a co-operating with a stationary leaf actuator a Bowden cable that controls a valve disposed on a moving leaf valve. When the valve is opened via the Bowden cable, the hydraulic fluid can flow out of the closing piston, thus ensuring that the stationary leaf is always closed in front of the active leaf.

With this construction, the transmission element, namely the Bowden cable, has a great influence on the function. In case of failure of the Bowden cable, caused z. B. by incorrect setting, wrong length of the Bowden cable, loosening the cable clamps, etc., it comes that the correct closed position of the folded door (aisle and inactive leaf) is not respected. However, since closing sequence controls are usually used in door systems in fire sections, there is an increased danger potential in the event of a danger when a double-leaf door is not correctly closed.

Another closing sequence regulation is from the DE 32 04 975 A1 known, in which a control valve is provided which is directly or indirectly connected to the inactive leaf. The axis of a door closer for the inactive leaf is provided with a toothed wheel, which meshes with a toothed strip arranged in a piston, so that a rotation of the axis of the door closer is translated into a translational movement of the piston. The piston controls the flow of hydraulic fluid on the moving leaf and thus ensures that the active leaf can not be closed in front of the inactive leaf.

The object of the present invention is to further develop the prior art and to provide a hydraulic-mechanical closing sequence control that ensures a secure closing sequence of a two-leaf door, but achieved with as few and also simple components. Furthermore, the closing sequence control should be retrofitted.

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

According to the invention, the hydraulic-mechanical closing sequence control for double-winged, a fixed wing and a moving leaf doors, both the inactive leaf and the active leaf are each acted upon by a hydraulically actuated door closer or drive, which is provided with an axis on which a linkage, the other end via a slider or a roller with a slide interacts, characterized in that on the axis of the door closer for the inactive leaf a cam plate is arranged, which cooperates with a valve which controls the door closer of the active leaf. In addition to the above-mentioned embodiment of an overhead door closer with a slide rail and a version with scissor linkage can be selected.

As a result of this embodiment, a closing sequence control is provided with a few and simply constructed components, which ensures a secure closing sequence. The design also has the advantage that the entire closure sequence control 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 closure sequence regulation, but also the provision of individual or spare parts simple and straightforward and requires little space. For maintenance and repair work, the closing sequence control according to the present invention can also be easily installed or removed because of their low weight. Due to the arrangement of the valve on the inactive leaf also a higher reaction speed is achieved. The entire closing sequence control is inexpensive, can be easily mounted in a system carrier and allows easy adjustment. Also a pre-assembly is possible. Due to the direct control, without the use of pontics, it can be directly recognized in which position the door leaf is located. Furthermore, there is no interference with the hydraulic circuit of the active leaf by elements of the door closer of the passive leaf.

Door closers are understood to mean both classic door closers and door drives with an electro-hydraulic opening aid and electro-hydraulic door drives.

The use of the proposed closing sequence control is possible with bottom door closers readily. In such a case, the cam is mounted on the axis of the gull-wing door closer and the connection to the valve is made via corresponding hydraulic lines from the bottom-wing door closer.

It is understood that according to this invention, door operators also fall under the term door closer.

The subclaims have advantageous developments of the invention to the content.

According to an advantageous embodiment, the control of the door closer of the active leaf via a hydraulic connection. This ensures easy control and is also extremely cost effective.

As a hydraulic connection come in accordance with an embodiment variant lines in question, which can be preferably integrated into a system carrier. For example, according to an advantageous embodiment, the lines can be extruded into the system carrier during production. This represents a visually appealing solution. Instead of a system carrier and a slide can be used in the z. B. additional chambers are available or two hydraulic lines are laid in a chamber.

According to another embodiment, the hydraulic connection consists of hoses.

The closing sequence control according to the invention is designed according to an advantageous embodiment so that the valve in the open state allows unrestricted movement of the active leaf and blocked in the closed state movement of the active leaf.

To ensure that the inactive leaf is always closed in front of the active leaf, according to an advantageous embodiment, the valve is opened only in a single position of the cam, in contrast, closed in all other positions. This open position is given when the inactive leaf remains in its correct closed position or from a certain small opening angle of the inactive leaf, which is always smaller than the opening angle of the active leaf. Thus, with the exception of this very specific position of the inactive leaf, the active leaf can always be moved. In this way, the desired closing sequence control is ensured with the simplest means. Once the inactive leaf and the active leaf are open (both at the same time) can only the inactive leaf are moved. The active leaf remains in its position and can only be moved again when the inactive leaf has reached its closed position or is just before the closed position.

The valve used in the closure sequence control according to the invention is provided according to an advantageous development with a valve body from which protrudes a spring-loaded pin. This pin is pressed in an advantageous manner by a spring against the cam. This ensures that the pin always rests against the cam disc and thus ensures a functionally reliable control of the valve.

The valve is advantageously closed when the pen is engaged and opened with the pin disengaged. Characterized in that a located in a piston chamber cylinder which is operatively connected via its teeth with the output shaft of the door drive on the gear side, at each of its end faces within the piston chamber each having a pressure chamber with hydraulic fluid and these two pressure chambers each at one of the valve , which is mounted on the drive of the passive leaf, is connected to leading lines, depending on the position of the valve (open and closed) can cause a blockage of the piston on the gear side or a free movement.

While in a first embodiment, the spring-loaded pin of the valve interacts directly with the cam, in a second embodiment, a rotatably mounted release lever is interposed. In this case, the pin of the valve presses on a pressure plate, which is arranged at one end on the release lever, while the other end is the pivotal mounting of the one-armed release lever. Furthermore, the release lever has a projection which is directly or indirectly in contact with the cam. In order to minimize friction losses, is located on the projection a rotatably mounted bearings, z. B. a ball bearing, which bears against the cam. The valve can be embedded within a slide rail and actuated by the corresponding slider of the inactive leaf. Such an arrangement can be carried out both in a closing and in an opening valve. Furthermore, it is possible for the valve to be arranged within a further chamber of the slide rail, in which at the same time the connecting lines lead to the closer or the device of the active leaf.

Furthermore, the above-described closing sequence control can be applied not only to floor spring closers or overhead door closers, but also to internal door closers installed inside the door leaf or also to frame door closers located above the door within the frame or door frame. In an embodiment within a closing sequence arrangement in floor spring closers, moreover, the routing can take place within a separate channel.

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

Figur 1:

Eine Gesamtansicht der erfindungsgemäßen Schließfolgeregelung;

Figur 2:

die Einzelheiten "X" und "Y" aus Figur 1;

Figur 3:

die Einzelheit "X" in einer ersten Ausführungsform einer Ventilansteuerung;

Figur 4:

ein in der erfindungsgemäßen Schließfolgeregelung verwendetes Ventil in einer vergrößerten Darstellung;

Figur 5:

eine zweite Ausführungsform der Ventilsteuerung;

Figur 6:

einen Hydraulikschaltplan der Schließfolgesteuerung;

Figur 7:

eine dritte Ausführungsform der Ventilsteuerung.

Show it:

FIG. 1:

An overall view of the closing sequence control according to the invention;

FIG. 2:

the details "X" and "Y" of Figure 1;

FIG. 3:

the detail "X" in a first embodiment of a valve control;

FIG. 4:

a valve used in the closing sequence control according to the invention in an enlarged view;

FIG. 5:

a second embodiment of the valve control;

FIG. 6:

a hydraulic circuit diagram of the closing sequence control;

FIG. 7:

a third embodiment of the valve control.

The closing sequence control according to the invention is suitable for a double-winged folded door in which a moving leaf and a stationary leaf are each connected via a pivoting arm 4 to a door frame or the door wings. The active leaf, the passive leaf, the door frame and the two pivot arms 4 are generally state of the art and therefore not shown or explained in detail here.

The closing sequence control according to a first preferred embodiment of the present invention comprises two hydraulically actuated door closers 1, 2, of which one acts on the inactive leaf and the other on the active leaf. The two door closers 1, 2 are constructed substantially the same. They each have an axis 3, on which a pivot arm 4 is arranged, which is connected to the active leaf or the inactive leaf each movable via a slider or a roller and a slide rail.

The cooperating with the passive leaf door closer 1 has on its axis 3 in addition to a cam 5 on. This cam plate 5 is formed substantially round and has a recess 6 at one point. The cam 5 can also be connected to the axle 3 later. The connection is executed positively and positively.

With the cam 5 acts attached to the door closer 1 valve 7 together. The valve 7 has a valve housing 8 from which protrudes a pin 9, which is under the action of a spring 10, which tries to push the pin 9 out of the housing 8.

To the valve 7 lines or hoses 11 are connected, which are connected at their other end to the hydraulic circuit of the door closer 2 for the active leaf. The lines or hoses 11 can also be extruded into a system carrier 12 directly during production.

The construction of the valve 7 is chosen so that the valve 7 is opened when the pin 9 is pushed out of the housing 8. The force for pushing out the pin 9 is realized via the spring 10. In this position, the active leaf can be moved freely without restriction. When the pin 9 of the valve 7 protrudes from the housing 8, as shown in Figures 2, 3 and 4, the valve 7 is opened. In this position, a movement of the hydraulic fluid is not prevented in the door closer 2 of the active leaf, with the result that the stationary leaf in the closed position can be moved freely.

The function of the closing sequence control according to the invention will now be explained below.

In Figure 2, the cam plate 5 is shown in a position in which the pin 9 protrudes from the housing 8 of the valve 7. In this position, the valve 7 is open. This has the consequence that a flow of hydraulic fluid in the door closer 2 for the active leaf is not prevented.

If the inactive leaf is opened after the active leaf, the cam disc 5 rotates, the pin 9 emerges from the indentation 6 and is pressed into the housing 8 of the valve 7. In this position, the valve is the 7th closed. This has the consequence that now a flow of hydraulic fluid in the door closer 2 for the active leaf is no longer possible and the aisle can thus not be moved.

The active leaf can only move again and is closed via the drive 2 when the inactive leaf is in its closed position or is just before it and the valve 7 releases the flow through the lines 11 to the drive 2 of the active leaf again, so that in In any case, it is ensured that the inactive leaf is closed in front of the active leaf. This is particularly important where the inactive leaf and the active leaf are each equipped with a fold and the wings are in a fire section.

FIG. 5 shows a variant of the actuation of the pin 9 of the valve 8. The valve 7 is again a valve, which are connected by connecting lines via the connecting pieces 18 with pressure chambers of the door closer of the active leaf. In this embodiment, the pin 9 does not interact directly with the cam 5. Rather, a release lever 14 is provided in between to minimize loads and friction losses in the circuit of the valve 7 from "to" to "open" or from "open" to "closed". The release lever 14 is rotatably mounted at a pivot point 15 and designed as a one-armed lever. At the opposite end of the pivot 15, a pressure plate 17 is arranged, which forms a pressure surface for the pin 9. With the cam 5 is a stored within the lever ball bearing 16 is in direct contact. Now, if the cam 5 is rotated due to the axis 3, so due to the present within the cam reduction or due to a projection of the trigger lever 14 is actuated, which in turn causes actuation of the valve 8 via the pin 9.

The cam 5 is arranged on the axis 3 of the door closer of the active leaf so that the setting can be made stepless. With a precise adjustment and thus triggering of the valve 8 via the cam 5, this is fixed accordingly on the axis 3.

To the assembly, consisting of valve 7 and release lever 14, easy to assemble, this is on a mounting lever 13 which is fixed to the door closer of the active leaf and positive locking.

Another way to control the door closer of the active leaf on the passive leaf, is that z. B. the valve 7 may be installed within a slide rail 34. In order to operate the valve 7 with the pin 9, z. B., as can be seen from the figure 7, press an edge 36 of a slider 35 when moving against the pin 9 and thus actuate the valve 7. Depending on the direction of approach, a valve can be used which closes or opens in the actuated state. However, a reverse function is also conceivable.

In addition to the above-described embodiments of a door closer 1 and 2, of course, according to the invention also a hydraulic mechanical drive can be used. This is based on the requirement of whether the drive should only open the door and the closing process is then accomplished via a spring located within the drive or the drive will also operate for the closing of the door.

FIG. 6 shows a functional principle for a hydraulic circuit diagram of a moving leaf and fixed leaf drive with a closing sequence control of the above-described type according to the invention. A piston 25 is displaceably mounted within a piston chamber which is not described in greater detail. While in the figure 6 on the right side a compression spring 19 is present, no spring is present on the opposite side of the piston 25. simultaneously form on each side of the piston 25, a pressure chamber 20 of the pump side and a pressure chamber 33 of the spring side. In the area of the axis 3 is z. As an oil tank 32. The pressure chamber 20 is connected via a line in which an intake valve for the opening direction is present, connected to the oil tank 32. At the same time, however, the pressure chamber 20 via a line in which a closing damping valve 21 is connected to the oil tank 32 via a solenoid valve 31. Parallel to the Schließdämpfungsventil 21 is provided with an outlet that does not end in the pressure chamber 20, a closing speed valve 22. The pressure chamber 20 has a connection with a pump check valve 27 contained therein to a pump 28 with a motor 29. At the pump 28, a pressure relief valve 30 is present at the same time. The pumped from the pump 28 from the oil tank 32 hydraulic medium is pumped via the pump check valve 27 into the pressure chamber 20 (pump side) and thus causes a displacement of the piston 25 within the cylinder against the compression spring 19th

The pressure chamber 33 on the spring side is also connected by a hydraulic line to the oil tank 32. Within this line are arranged in parallel an opening speed valve 23 and an opening damping valve 24th

The structure of the device for the active leaf drive is analogous to that of the passive leaf drive, with the exception that from the oil tank 32 a line 11 goes off, in which the valve 7 is arranged. The second connection to the valve 7 via the line 11 via the already described valves 21 and 22 with a still intermediate therebetween solenoid valve 31 to the pressure chamber 20 of the pump side. The pin 9 of the valve 7 acts in the schematic representation with the cam 5 according to the above-described type and manner together.

LIST OF REFERENCE NUMBERS

1

door closers

2

door closers

3

axis

4

linkage

5

cam

6

indentation

7

Valve

8th

casing

9

pen

10

feather

11

Pipes or hoses

12

system support

13

mounting lever

14

sear

15

pivot point

16

ball-bearing

17

platen

18

spigot

19

compression spring

20

Pressure chamber (pump side)

21

Closing damping valve

22

Closing speed valve

23

Opening speed valve

24

Opening damping valve

25

piston

26

Intake valve (opening direction)

27

Pump check valve

28

pump

29

engine

30

Pressure relief valve

31

magnetic valve

32

oil tank

33

Pressure chamber (spring side)

34

slide

35

slide

36

edge

Claims (19)

1. A hydraulic-mechanical closing sequence control for double-leaf doors having an inactive leaf and an active leaf, both the inactive leaf and the active leaf being charged by respectively one hydraulically actuated device (1, 2) with at least one piston-cylinder unit for their respective opening and/or closing, at least the cylinder unit of the active leaf having a pressure chamber (20, 33) on each side of the piston (25), the pressure chambers (20, 33) being respectively connected to one of the lines leading to a valve (7), the valve (7) being controlled by an opening movement of the inactive leaf, and in that the devices (1, 2) are respectively provided with an axle, characterized in that a cam disc (5), which cooperates with a valve (7) controlling the door closer (2) of the active leaf, is disposed on the axle (3) of the door closer (1) of the inactive leaf.
2. A hydraulic-mechanical closing sequence control for double-leaf doors having an inactive leaf and an active leaf, both the inactive leaf and the active leaf being charged by respectively one hydraulically actuated device (1, 2) with at least one piston-cylinder unit for their respective opening and/or closing, at least the cylinder unit of the active leaf having a pressure chamber (20, 33) on each side of the piston (25), the pressure chambers (20, 33) being respectively connected to one of the lines leading to a valve (7), the valve (7) being controlled by an opening movement of the inactive leaf, which unit is respectively provided with an axle (3) on which an arm assembly acts, the other end thereof being connected to respectively one slider (35), which is displaceable in a slide channel (34), characterized in that the slider (35) of the door closer (1) for the inactive leaf cooperates with a valve (7) controlling the door closer (2) of the active leaf.
3. A hydraulic-mechanical closing sequence control according to claim 1, characterized in that the device (1, 2) is an overhead door closer, an interior door closer, a transom door closer, a floor spring or a hydraulic-mechanical drive.
4. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the control of the door closer (2) of the active leaf is realized via a hydraulic connection.
5. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the hydraulic connection consists of lines (11) which are preferably integral with a system carrier (12) or with a slide channel.
6. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the lines are extruded within the system carrier (12) or within the slide channel.
7. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the hydraulic connection consists of hoses (11).
8. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that, in the open position, the valve (7) permits a movement of the active leaf and, in the closed position, blocks a movement of the active leaf.
9. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that, in the closed position, the valve (7) permits a movement of the active leaf and, in the open position, blocks a movement of the active leaf.
10. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the valve (7) is open exclusively in one single notch of the cam disc (5), but is closed in all other positions.
11. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the valve (7) is closed exclusively in one single notch of the cam disc (5), but is open in all other positions.
12. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the valve (7) is provided with a valve body (8) from which a spring-loaded pin (9) protrudes.
13. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the spring (10) urges the protruding end of the pin (9) against the cam disc (5).
14. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the valve (7) is closed when the pin (9) is retracted, and is open when the pin (9) is projected.
15. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the valve (7) is open when the pin (9) is retracted, and is closed when the pin (9) is projected.
16. A hydraulic-mechanical closing sequence control according to one of the preceding claims, characterized in that the pin (9) is directly or indirectly controlled by the cam disc (5).
17. A hydraulic-mechanical closing sequence control according to claim 16, characterized in that a trigger lever (14) is interposed between the pin (9) and the cam disc (5).
18. A hydraulic-mechanical closing sequence control according to claim 17, characterized in that, in the contact area of the pin (9), the trigger lever (14) has a pressure plate (17).
19. A hydraulic-mechanical closing sequence control according to claim 17, characterized in that, in the area of the cam disc (5), the trigger lever (14) has a ball bearing (16).

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