Closure sequence assembly for a double-wing door installation

Abstract

The invention relates to a closing sequence arrangement (1) for a double-leaf door system (100) with fixed and active leaf (102, 104), comprising a compensating device (3) with a first fastening section (4), a second fastening section (5) and a spring (6) connecting the two fastening sections, a pull element (7) which is attached at one end to the first fastening section (4) and whose other end is designed for attachment to a release device (21) of a door actuator (2) of the active leaf (104), and an actuating device (8) operatively connected to the second fastening section (5), designed for pulling on the compensating device (3) when actuated by the fixed leaf (102).

Description

[0001] The invention relates to a closing sequence arrangement for use on a double-leaf door system with a fixed leaf and an active leaf.

[0002] For the complete closure of double-leaf doors, which are particularly commonly used as fire doors or smoke control doors, it is essential to follow the correct closing sequence. This means that the inactive leaf must be closed first so that the active leaf can be closed to completely seal the doorway. A previously known arrangement for controlling the closing sequence is shown in DE 32 21 534 A1. This arrangement includes a lever that is depressed by the closing inactive leaf. The movement of the lever is transmitted via a pull element to a hydraulic valve in the door closer of the active leaf. Pulling the pull element opens the hydraulic valve, causing the door closer on the active leaf to close it.

[0003] The object of the present invention is to provide a closing sequence arrangement for a door system which enables safe use of the door system with low-maintenance operation.

[0004] The closing sequence assembly comprises a compensating device with a first mounting section and a second mounting section. The two mounting sections are connected to each other via a spring.

[0005] Furthermore, a pulling element is provided, one end of which is attached to the first fastening section. The other end of the pulling element is designed to be attached to a release device of a door operator on the active leaf. This release device is designed such that pulling the pulling element closes the active leaf, particularly the door closer.

[0006] This pulling movement on the pull element is triggered by an actuating device of the closing sequence assembly. The actuating device is operatively connected to the second fastening section and is designed to pull on the compensating device. This pulling on the compensating device occurs when the actuating device is actuated by the closing or closed fixed leaf. This actuation can occur either directly by the fixed leaf or indirectly via components connected to the fixed leaf, for example, by a linkage connected to the fixed leaf, in particular by the sliding piece of a sliding rail linkage.

[0007] In particular, it is provided that the two fastening sections of the compensating device are connected exclusively via the spring in a tensile force transmission manner.

[0008] The actuating device pulls on the second mounting section of the compensating device. This pulling force is transmitted via the spring to the first mounting section. The first mounting section is connected to the pulling element, which in turn pulls the pulling element. The pulling element then actuates the release device, allowing the active leaf to close. However, as long as the inactive leaf is open and not acting on the actuating device, the active leaf remains open.

[0009] The pulling element is, in particular, a rope or wire. Specifically, the pulling element is a Bowden cable. This allows the pulling element to be laid not only in a straight line but also in a curve.

[0010] It has been found that tension elements, particularly those designed as ropes or wires, require regular retensioning. This is because settling processes in the components of the actuating device and elongation of the tension element mean that, after a certain period of use, the actuating device's travel length is no longer sufficient to actuate the release mechanism. To remedy this and create a system that requires minimal maintenance, ideally maintenance-free, a compensating device is provided. The force transmission via the spring allows the actuating device to be pulled significantly further than necessary at the second mounting section. This ensures that sufficient movement is transmitted via the tension element to actuate the release mechanism. The excess movement applied to the second mounting section leads to deformation of the spring.

[0011] In particular, it is provided that the release device in the door closer of the active leaf includes a mechanical stop that limits the pull length of the pull element. This mechanical stop can limit the pull length of the pull element directly or indirectly. For example, the stop can also limit the movement length of a valve body of a hydraulic valve and thereby also the pull length of the pull element.

[0012] The actuating device is designed to pull the second fastening section by an "actuating length." This actuating length is particularly greater than the pull length. In particular, the actuating length is at least 150%, preferably at least 200%, and most preferably at least 300% of the pull length. The excess of the actuating length over the pull length leads to a deformation of the spring.

[0013] Preferably, the door lever is rotatably mounted, allowing it to rotate from a rest position to an end position. When the door lever is rotated from its rest position to its end position by the actuating device, the second mounting section can be extended by the actuating length. During the first half of the rotation, the second mounting section can be extended by a greater portion of the actuating length than during the second half of the rotation. This ensures that the closing sequence arrangement can be used with different door configurations. Depending on the door configuration, when actuated by the fixed leaf, the door lever is either moved completely to its end position or only partially towards the end position.The portion of the actuation length by which the second fastening section is pulled during the first half of the rotation is therefore selected so that even in door arrangements where the door lever is only partially moved from the rest position towards the end position when actuated by the fixed leaf, this portion is sufficient to reliably trigger the release device.

[0014] Preferably, the spring is designed as a compression spring, in particular a coil compression spring. For this purpose, one of the two mounting sections, in particular the second mounting section, has a rod assembly. This rod assembly preferably comprises a threaded rod and a screwed-on nut.

[0015] The spring sits on the rod assembly, in particular on the threaded rod. Preferably, one end of the spring is supported against the nut. A preload on the spring can preferably be adjusted by screwing the nut onto the threaded rod. The end of the spring that rests against the nut preferably faces the first fastening section.

[0016] Furthermore, it is preferably provided that the other fastening section, in particular the second fastening section, comprises a sleeve assembly. This sleeve assembly surrounds the rod assembly including the spring. In particular, the spring, the threaded rod, and the nut are located inside the sleeve assembly.

[0017] At one end, particularly facing the second fastening section, the sleeve has a base. The spring rests against this base. The sleeve assembly is linearly movable relative to the rod assembly. Specifically, the threaded rod passes through the base of the sleeve. In this area, the threaded rod may be unthreaded. A sliding bearing is provided between the threaded rod and the base of the sleeve assembly.

[0018] The sleeve assembly preferably includes a pull element receptacle for attaching the pull element.

[0019] The actuating device is preferably designed as a lever arrangement. In particular, the actuating device comprises a door lever. The door lever is preferably attached to a bearing about a vertical axis of rotation. The bearing, in turn, can be mounted in a frame-mounted or door-mounted fixture.

[0020] Preferably, the fastening device includes a transmission lever. The transmission lever is operatively connected to the door handle and can therefore be driven by the door handle. In particular, a gearbox is provided in the bearing, which is designed to transmit power from the door handle to the transmission lever. The transmission lever is preferably also rotatably mounted in the bearing about a vertical axis of rotation.

[0021] The transmission lever is preferably rotatably connected to the second mounting section of the compensating device. The associated axis of rotation is also preferably vertical.

[0022] The door handle preferably has a contact roller against which the fixed leaf or the frame of the door presses.

[0023] The transmission lever can have a guide roller and use this guide roller to brace itself against the device.

[0024] Preferably, the closing sequence arrangement comprises the described door actuator, in particular a door closer, on the active leaf. This door actuator, in turn, comprises the release device on which the pull element engages.

[0025] The release device preferably includes a hydraulic valve. This closed hydraulic valve prevents the door leaf from being closed by the door operator. By opening the hydraulic valve, the door operator can close the door leaf. The pull element is arranged to open the hydraulic valve. For this purpose, the pull element can be directly or indirectly connected to a valve body, in particular a valve needle, of the hydraulic valve.

[0026] The release device may include a return spring that closes the hydraulic valve. The return spring is designed with a weaker spring force than the pre-tensioned spring of the compensating device.

[0027] Furthermore, the invention comprises a door system with a fixed leaf and an active leaf and a closing sequence arrangement described above. In particular, the fixed leaf also includes a door actuator, especially a door closer.

[0028] The invention will now be described in more detail using an exemplary embodiment. The following are shown: Fig. 1 a door system according to the invention with a closing sequence arrangement according to the invention according to an embodiment, Fig. 2 the closing sequence arrangement according to the invention according to the embodiment, Fig. 3 a detail of the closing sequence arrangement according to the invention according to the embodiment, and Fig. 4 a sectional view of a compensating device of the closing sequence arrangement according to the invention according to the embodiment.

[0029] The following will be based on the Figures 1 to 4A closing sequence arrangement 1 of a door system 100 is explained in detail. Unless explicitly stated otherwise, reference is always made to all figures.

[0030] Fig. 1 Figure 100 shows the door assembly with frame 101, fixed leaf 102, and active leaf 104. A fixed leaf door operator 103, designed as a door closer in this example, is located on the fixed leaf 102. Fig. 1 The fixed-leaf door operator 103 is attached to the fixed leaf 102 and connected to the frame 101 via a scissor linkage. Alternatively, the fixed-leaf door operator 103 can be attached to the frame 102 and connected to the fixed leaf 102 via a linkage. This arrangement is also referred to as "head mounting".

[0031] Furthermore, the door assembly 100 includes the closing sequence arrangement 1. A door operator 2 arranged on the active leaf can be part of the closing sequence arrangement 1. Alternatively, the door operator 2 can also be attached to the frame 102 and connected to the active leaf 104 via a linkage.

[0032] In detail, the Figures 2 to 4 The closing sequence arrangement 1 comprises a compensating device 3 with a first mounting section 4 and a second mounting section 5. The two mounting sections 4 and 5 are connected to each other via a spring 6 of the compensating device 3. In the illustrated embodiment, the spring 6 is designed as a coil spring. Furthermore, the compensating device 3 comprises a pull element 7, here designed as a Bowden cable. The pull element 7 is connected to the first mounting section 4 of the compensating device 3.

[0033] Furthermore, the closing sequence arrangement 1 comprises an actuating device 8. The actuating device 8 has a bearing 10. The bearing 10 is mounted in a frame-fixed device 105, for example, a frame-fixed profile rail. A door lever 9 is rotatably mounted on the bearing 10. The door lever 9 has a contact roller 13. The fixed leaf 102 presses on the door lever 9 via this contact roller 13. Alternatively, the bearing 10 can be mounted in a door-fixed device 105, for example, a door-fixed profile rail.

[0034] Bearing 10 contains a gearbox 11, which transmits a rotary movement of the door lever 9 to a rotary movement of a transmission lever 12. The transmission lever 12 is also rotatably mounted in bearing 10.

[0035] The transmission lever 12 has a guide roller 14. This guide roller 14 directs the movement of the transmission lever 12 relative to the frame-mounted device 105.

[0036] The transmission lever 12 is rotatably connected to the second mounting section of the compensating device 3.

[0037] The fastening device 8 is designed so that pressing on the door lever 9 causes the transmission lever 12 to cause a pulling movement on the second fastening section 5.

[0038] The compensating device 3 comprises a rod assembly 15. The rod assembly 15 includes a threaded rod 16 with a screwed-on nut 17. The spring 6 is mounted on the threaded rod 16 and is supported against the nut 17.

[0039] Furthermore, the compensating device 3 comprises a sleeve assembly 18 with a base 19. The spring 6 with threaded rod 16 and nut 17 is located inside the sleeve assembly 18. The spring is supported against the base 19 of the sleeve assembly 18.

[0040] In Fig. 3 The sleeve arrangement 18 is partially hidden.

[0041] The sleeve assembly 18 is connected to a pull element receptacle 20 for connection with the pull element 7.

[0042] The section view in Fig. 4 This shows that the rod assembly 15 is linearly movable relative to the sleeve assembly 18. For this purpose, the threaded rod 16 penetrates the base 19 of the sleeve assembly 18.

[0043] Fig. 2 The figure shows, purely schematically, the door actuator 2 on the active leaf 104. A release device 21 is provided in this door actuator 2. This release device 21 is actuated by the pulled pull element 7 and enables the door actuator 2 to be released for closing the active leaf 104.

[0044] In a purely schematic way, it shows Fig. 2The release device 21 can include a hydraulic valve 22. The valve body, in particular the valve needle, is shown schematically. The hydraulic valve 22 is closed by a return spring 23. The hydraulic valve 22 is opened by direct or indirect connection with the traction element 7.

[0045] The movement in the release device 21, in particular the pull length of the pull element 7 and / or the opening movement of the hydraulic valve 22, is limited by a mechanical stop 24. This mechanical stop 24 limits the movement to a pull length 25.

[0046] Furthermore, it shows Fig. 2 schematically, a movement of the second fastening section 5 caused by the actuating device 8 is limited to an actuation length 26. This actuation length 26 is significantly longer than the pull length 25. Reference symbol list

[0047] 1 Closing sequence arrangement 2 Active leaf door actuator 3 Compensating device 4 First mounting section 5 Second mounting section 6 Spring 7 Pull element 8 Actuating device 9 Door lever 10 Bearing 11 Gearbox 12 Transmission lever 13 Contact roller 14 Guide roller 15 Rod assembly 16 Threaded rod 17 Nut 18 Sleeve assembly 19 Bottom 20 Pull element receptacle 21 Release device 22 Hydraulic valve 23 Return spring 24 Mechanical stop 25 Pull length 26 Actuating length 100 Door assembly 101 Frame 102 Fixed leaf 103 Fixed leaf door actuator 104 Active leaf 105 Device

Claims

1. Closing sequence arrangement (1) for a double-leaf door system (100) with fixed and active leaf (102, 104), comprising: • a compensating device (3) with a first fastening section (4), a second fastening section (5) and a spring (6) connecting the two fastening sections, • a pull element (7) which is attached at one end to the first fastening section (4) and whose other end is designed for attachment to a release device (21) of a door actuator (2) of the active leaf (104), • and an actuating device (8) operatively connected to the second fastening section (5), designed for pulling on the compensating device (3) during direct or indirect actuation by the fixed leaf (102).

2. Closing sequence arrangement according to claim 1, wherein the two fastening sections (4, 5) are connected exclusively via the spring (6) in a tensile force transmission manner.

3. Closing sequence arrangement according to one of the preceding claims, wherein one of the two fastening sections (5) comprises a rod arrangement (15) on which the spring (6), designed as a compression spring, is mounted, and wherein the other fastening section (4) comprises a sleeve arrangement (18) encompassing the rod arrangement (15) and the spring (6).

4. Closing sequence arrangement according to claim 3, wherein the spring (6) is supported against a nut (17) on the rod arrangement (15) and against a base (19) of the sleeve arrangement (18).

5. Closing sequence arrangement according to one of the preceding claims, wherein the pulling element (7) is a wire, a rod or a rope, in particular a Bowden cable.

6. Closing sequence arrangement according to one of the preceding claims, wherein the actuating device (8) comprises a door lever (9) for contact with the fixed leaf (102) or the frame (101).

7. Closing sequence arrangement claim 6, wherein the actuating device (8) comprises a transmission lever (12) connected to the second fastening section (5) which can be driven by the door lever (9).

8. Closing sequence arrangement according to one of the preceding claims, comprising the door actuator (2), in particular designed as a door closer, for arrangement on the active leaf (104), wherein the door actuator (2) comprises the release device (21) and the pull element (7) is attached to the release device (21).

9. Closing sequence arrangement according to claim 8, wherein the release device (21) comprises a mechanical stop (24) that limits a pull length (25) of the pull element (7).

10. Closing sequence arrangement according to one of the preceding claims, wherein the actuating device (8) is designed to pull the second fastening section (5) by an actuating length (26).

11. Closing sequence arrangement according to claims 6 and 10, wherein the door lever (9) is rotatably mounted, wherein the door lever (9) is rotatable from a rest position to an end position, wherein when the door lever (9) is rotated from the rest position to the end position by the actuating device (8) the second fastening section (5) can be pulled out by the actuating length (26), wherein during the first half of the rotation the second fastening section (5) can be pulled out by a larger part of the actuating length (26) than during the second half of the rotation.

12. Closing sequence arrangement according to one of claims 9 to 11, wherein the actuation length (26) is greater than the pull length (25), wherein the actuation length (26) is in particular at least 150%, preferably at least 200%, particularly preferably at least 300%, of the pull length (25).

13. Closing sequence arrangement according to one of claims 8 to 12, wherein the release device (21) comprises a hydraulic valve (22) and the pull element (7) is operatively connected to the hydraulic valve (22) for actuation, in particular for opening, of the hydraulic valve (22).

14. Door system (100) comprising a fixed leaf (102) and an active leaf (104) and a closing sequence arrangement (1) according to one of the preceding claims.