EP3555401A1

EP3555401A1 - Door having an emergency opening device

Info

Publication number: EP3555401A1
Application number: EP17808808.4A
Authority: EP
Inventors: Gabrijel Rejc
Original assignee: Gabrijel Rejc & Co KG GmbH
Current assignee: Gabrijel Rejc & Co KG GmbH
Priority date: 2016-12-15
Filing date: 2017-11-15
Publication date: 2019-10-23
Anticipated expiration: 2037-11-15
Also published as: EA201991394A1; CA3047182C; CN110337524A; DE102016225078A1; US20190360266A1; CN110337524B; JP6843998B2; EA036931B1; CA3047182A1; EP3555401B1; WO2018108424A1; JP2020514578A

Abstract

The invention relates to a door having an emergency opening device, comprising a door leaf, which can be moved between an open and a closed position, a primary motor that drives the door leaf by way of a door leaf drive, and an auxiliary motor, which is connected to an emergency power supply and is suited to drive the door leaf. In order to improve such a door to the effect that the emergency opening device can be reliably employed in different types of failure of the main drive motor of the door in order to open the door, the auxiliary motor, according to the invention, is coupled to the door leaf by way of an auxiliary motor coupling, and the emergency power supply has an energy store.

Description

Gate with an emergency opening device

The present invention relates to a gate with an emergency opening device, having the features of the preamble of claim 1.

Such goals are suitable, inter alia, for industrial applications, for closing production facilities, workshops and warehouses. For example, they are designed to mitigate air movement and help maintain temperatures in cooled or heated areas. Typical embodiments are sectional doors, roller doors and spiral doors. Such gates may have subdivided into mutually movable sections door leaves, which are guided laterally in the Torzargen and opened or closed in a vertical movement.

In particular, vertically movable gates can be designed with or without weight compensation. Known counterbalancing systems include springs that are tensioned when the gate is closed and relax when the gate is opened, with the energy stored in the spring assisting in opening the gate, thus allowing the gate to be moved with less effort. Gates without counterbalancing reduce the production effort and the susceptibility to wear.

To ensure reliability, such, electrically powered gates, even in the event of a failure of the engine, for example during a power outage, should be apparent. Persons who are in a room closed by the gate at the time of engine failure must be able to open the gate to free themselves. Otherwise, there would be a danger to the health and life of the person concerned, for example, if he is in a closed refrigerator.

Known goals suggest ways to manually open the gate, for example, by manually pushing the gate upwards. Such a solution is particularly suitable for gates with counterbalance when the weight balance keeps the force required to open the door low and the gate can be moved without tools by a person. Alternative manual solutions use winches or hand chains.

DE 29 35 490 A1 proposes a generic gate with an AC positioning control drive for driving a door. An electric motor drives a pulley via a worm gear, with the belt driving the door. The worm gear engages a measuring gear, by means of which the position of the door is determined in order to control the motor and the speed of movement of the door in the different phases of movement depending on this measurement. On the common shaft of the main engine are two additional auxiliary motors connected downstream, which are driven in the event of failure of the main power supply by an emergency power supply to operate the door in case of power failure. The main motor, as well as the two auxiliary motors and the worm gear are executed in a common housing. Even when the auxiliary motors are operating, the position measurement can be made on the worm gear, since the auxiliary motors drive the shaft of the main motor. The safety function of the drive described is explicitly designed to cancel the main power supply. However, other types of failure than just a power failure could occur in these designs.

EP 2 8 87535 A1 discloses a drive and control system for gates, which allows the emergency opening of the gate during a power failure. In this case, a drive motor is used to brake the gate, which is in particular a synchronous motor, and down to zero speed is adjustable. The motor is connected to an accumulator unit, which maintains this motor control even in the event of a failure of the external power supply and is also suitable to drive the motor during an emergency opening of the gate. The accumulator unit is designed to be charged during normal operation of the door by the electric motor, which can recuperate energy released when closing the gate.

It is an object of the present invention to improve a door having an emergency opening device in such a manner that the emergency opening device can be reliably used in different types of failure of the main drive motor of the door to open the door.

The object is achieved by a gate with an emergency opening device with the features of claim 1.

By coupling the auxiliary motor with the door leaf by means of its own auxiliary engine clutch, the emergency opening is less dependent on the coupling of the primary motor with the Torblatttrieb. As a result, the safety and reliability of the emergency opening device can be increased. The opening of the gate is made possible by this arrangement during power failures, but also, for example, in the case of a material failure in the primary engine, which leads to its blocking or in the energy transfer between the primary motor and the Torblatttrieb.

The use of an energy storage of the emergency power supply makes the emergency opening device less dependent on external power supply, so that it can remain operable even in the event of a complete power failure. For the purposes of the present invention, the auxiliary motor clutch should be suitable for transmitting power from the auxiliary motor to the door leaf. The term "clutch" does not necessarily mean that the auxiliary engine clutch is releasable and closable.

The primary engine is designed to open and close the door at the speeds desired in normal operation and requires sufficiently high electrical power to ensure these speeds. The auxiliary motor can be designed, for example, to be operated with significantly lower electrical power, since it depends less on the speed of movement of the door in emergency operation, but above all on the goal to move at all. Conveniently, therefore, the energy storage can be designed with relatively low capacity in order to reduce its cost.

According to one embodiment variant, the auxiliary engine can be coupled and decoupled via the auxiliary motor coupling with the door leaf drive. In particular, in normal operation of the gate by the primary engine, the auxiliary motor can be decoupled via an opening of the auxiliary motor clutch from the Torblatttrieb. The components in the auxiliary engine can thus remain unmoved during normal operation of the gate. On the one hand, the wear in the auxiliary motor can be reduced and, secondly, the reduction of the moving parts reduces the inertia in the system.

In a further development, the primary engine can be decoupled from the door leaf drive via a primary motor coupling. In particular, in the case of an emergency opening of the door by means of the auxiliary motor, the primary motor can be decoupled by opening the primary rotor clutch from the Torblatttrieb. During an emergency opening, the primary engine may remain stationary. In particular, in a blockage of the primary engine so the emergency opening can still be performed. In addition, the inertia of the system is reduced because the moving parts of the primary engine are not moved during the emergency opening.

In a variant, a braking device may be provided, which is set up to keep the door leaf automatically in a position and to be released from the emergency power supply. The braking device can hold the door automatically, ie even without external power supply in one position and thus reliably prevent a crash of the door, especially in the event of a power failure. In order to use this characteristic of the brake, and still be able to perform emergency opening of the gate in the event of a power failure, the automatic brake can be powered by the emergency power supply to solve them without external power supply can and open the door. According to one embodiment of the invention, an emergency control is provided, which is suitable for detecting a failure of the primary engine and for activating the braking device. As a result, a crash of the door leaf can be reliably prevented quickly after the occurrence of an accident in the drive of the door.

Possibly, the emergency control may be suitable in the event of a failure of the primary engine to decouple the primary engine from the Torblatttrieb. By means of the emergency control, the decoupling of the primary motor from the door leaf is simple and reliable feasible.

In a favorable embodiment, the emergency control may be suitable to couple the auxiliary motor with the Torblatttrieb in case of failure of the primary engine. As a result, the power transmission of the connection between the auxiliary engine and the door leaf drive can be produced in a favorable manner in preparation for the emergency opening of the door.

Conveniently, the emergency control may be arranged to automate some of the aforementioned tasks or to solve them by external control. For example, in the event of a decoupling of the primary engine from the door leaf drive, the auxiliary motor can automatically be coupled to the door leaf drive in order subsequently to start a manually initiated emergency opening. It would also be favorable if the emergency control is able to detect a power failure by itself and then automatically trigger the decoupling / coupling processes.

The above-mentioned object of the invention is also achieved by a method having the characteristics of claim 9.

By coupling the auxiliary motor with the Torblatttrieb via its own auxiliary engine clutch, the emergency opening of the door by means of the auxiliary motor can be performed reliably and even with different types of failure of the main engine. For example, during power outages or material failure in the primary engine can be done by the auxiliary motor, the emergency opening of the gate.

Conveniently, the auxiliary motor may initially be decoupled from the Torblatttrieb and coupled by the auxiliary engine clutch with the Torblatttrieb. During normal operation of the door, the auxiliary motor can be decoupled from the door leaf drive, so that it is not necessarily moved with when the door leaf is opened or closed by the primary motor. As a result, the wear in the auxiliary motor can be reduced and the inertia of the system can be reduced during normal operation. If an emergency opening is to be carried out, the auxiliary motor is coupled to the door leaf drive by means of the auxiliary motor coupling in order to open the door by means of the auxiliary motor. Conceivably, the primary motor can first be coupled to the door leaf drive and decoupled from the door leaf by a primary motor coupling. During normal operation of the door, the primary motor is coupled to the door leaf drive in order to be able to move it up and down. For emergency opening of the gate of the primary engine is decoupled from the Torblatttrieb, so that the emergency opening can be carried out with the primary engine stopped. By decoupling the primary engine on the one hand, the inertia of the system can be reduced to reduce the power necessary for emergency opening. On the other hand, even with a blocked primary engine, or a blocked connection of the primary engine to the Torblatttrieb in normal operation, the emergency opening of the gate can be ensured.

Conveniently, the coupling of the auxiliary motor with the Torblatttrieb and the decoupling of the primary motor can be linked by the Torblatttrieb, so that only one of the two motors is coupled to the door leaf drive and the coupling of a motor with the Torblatttrieb automatically leads to decoupling of the other motor.

In a variant of the invention, in the case of a failure of the primary engine, first a braking device can be triggered which automatically holds the door leaf. This effectively prevents the door from falling to increase safety for people and objects in the door area.

According to a further embodiment, the braking device can be released from an energy storage powered. As a result, the mobility of the door can be released to perform the emergency opening same.

In the following, the invention will be explained with reference to some embodiments. Show it:

FIG. 1 shows a schematic diagram of a door according to the invention,

FIG. 2 shows a second embodiment in a sectional view,

FIG. 3 shows the embodiment shown in FIG. 2 in a side view,

Figure 4 shows the marked in Figure 3 with A section in magnification, and

Figure 5 shows the marked in Figure 2 with B section in magnification.

For identical or corresponding features, identical reference numerals are used in the different figures and with reference to different embodiments. On a Explanation of corresponding or the same features will be omitted with reference to the following figures, if they have already been explained.

The following embodiments relate in particular to high-speed doors, ie gates whose door leaves vertical velocities of more than 1, 5 m / s, 2 m / s and / or 4 m / s, and in particular in the range of 2 to 4 m / s reach ,

The gate shown in Figure 1 is designed as a spiral door, wherein the door leaf 1 is constructed of a number of mutually movable door sections extending in the horizontal direction between two door frames 6. The gate is shown open to about a third. In the lintel 13 above the headroom essential parts of the drive of the door are provided and shown here schematically. In the open state, the door leaf is stored in a mounted in the lintel 13 spiral. There are other design variants of the door possible according to the invention, for example as a roller shutter, which is wound on a winding shaft.

The gate shown also has no weight compensation, which makes it relatively difficult to open manually in case of failure of the engine. In alternative embodiments, weight balancing devices may be provided, for example, based on spring force.

As door leaf drive is a Torblattwelle 5, which extends horizontally approximately over the entire width of the door. Not shown in the diagram, the door has a pair of gears, which are carried out on both sides of the door leaf on the door leaf shaft. These engage in drive chains, which are connected on both sides of the door leaf in the Torzagen with the door leaf. By rotation of the door leaf shaft 5, the gears mesh through the drive chains and thus promote the door leaf 1 on the door leaf shaft 5 over in the spiral in the area of the gate lintel.

The door leaf shaft 5 is connected via a primary gear 4, in which a switchable coupling is provided with the primary motor 3, so that in normal operation, the mechanical power of the primary motor 3 is transmitted via the primary gear 4 to the door leaf shaft 5 to open the door leaf 1 or close , The primary transmission 4 can be designed as a worm, spur gear or bevel gear, with chain or belt drives. Likewise, gearless versions are conceivable in which a Torblatttrieb is connected directly to the primary motor shaft.

Functionally and spatially separated from the primary motor 3, an auxiliary motor 10 is provided which can be coupled and decoupled via an auxiliary motor coupling 9 with the door leaf shaft 5. The primary Märmotor 3 can be designed as a synchronous or asynchronous motor and driven, for example, with three-phase or alternating current. In favorable embodiments, the auxiliary engine is designed with significantly lower power than the primary engine. Since his task is to carry out an emergency opening of the door, the speed of movement of the door leaf which can be achieved by means of the motor, subordinate.

In the example shown, the auxiliary motor is designed as a DC motor to be fed from the intended as a DC power source energy storage favorable.

To the door leaf shaft 5 engages a braking device 7 in the region of the door frame 12, which is designed as a spring-force disc brake. In the embodiment, a brake disc is rotationally fixed to the door leaf shaft. Two brake shoes mounted on both sides of the brake disc are pretensioned by means of spring force in the direction of the brake disc and kept at a distance from the brake disc by means of an electromagnet against the spring force. To trigger the collecting brake 7, the electromagnets are deactivated, so that the brake shoes are pressed by the spring force against the brake disc and brake the Torblattwelle. This arrangement has the further advantage that it is automatically activated in the event of a power failure and triggers the brake. The primary engine 3, the primary transmission 4 with the clutch, the brake device 7 and the auxiliary engine clutch 9 are connected to an emergency control 8. Via the connection with the primary engine 3, the emergency control 8 is able to detect a failure of the primary engine 3, for example due to a power failure or a technical failure of the primary engine 3.

In a position that can be reached from the outside by an operator, for example on a door frame 6, a manual control unit 12 is mounted. By means of this control unit 12, the auxiliary motor 10 can be controlled to make the emergency opening of the gate. The control unit 12 has a button with which the emergency opening of the gate can be started by a person. Pressing and holding the button will initiate the emergency opening procedure During power failure (etc.). The brake is released and the door leaf is moved upwards by the auxiliary drive. It must be ensured that when releasing the button during the emergency opening, the brake re-enters.

In order to ensure the operation of the gate, in particular the emergency opening and braking of the gate in the event of a complete power failure, the braking device 7 and the auxiliary motor 10 are connected to an accumulator 1 1, which ensures the emergency power supply of the door as energy storage. The accumulator 1 1 is also connected to the primary engine 3. The primary engine is capable of recovering energy released upon closing or braking the door, thereby charging the accumulator.

An example of the structural design of a door, which may be equipped with an emergency opening device according to the invention, is disclosed in EP 16176550.8. The gate described therein has a sectional door leaf, which is mounted in the open state in a spiral, wherein gears engage in both sides of the door leaf running drive chains. The coupling of the motor with a drive shaft of the door leaf via a belt.

In normal operation of the door, the door leaf shaft 5 is coupled via the coupling of the primary gear 4 with the primary motor 5. A failure of the primary engine 5, such as a power failure or a material failure in the primary engine 5 is detected by the emergency control 8. In this case, the emergency control 8 automatically triggers the brake device 7, releases the clutch in the primary transmission 4 and closes the auxiliary engine clutch 9, so that the door is placed in a state in which an emergency opening by means of the auxiliary motor 10 can take place. The emergency opening, if necessary, is started manually by means of the control unit.

Figure 2 shows a second embodiment of a gate according to the invention in a partially opened state. The door leaf is, when the gate is open, stored in a run in the lintel 13 spiral 14.

The control for the motors and the emergency control 8 and the accumulator 1 1 are performed with the manual control unit 12 in a common housing in the right door frame 6. In alternative embodiments, these elements may be implemented individually or jointly in the area of the lintel 13.

The primary motor 3 is arranged inside the torsion spiral 14 and connected to a sprocket 17 via a primary motor coupling 15. This sprocket 17 of the primary motor is connected via a primary chain 16 with a sprocket 17 of the door leaf shaft 5. The door leaf shaft 5 is supported on both sides via roller bearings 19 in the area of the door frames 6. Close to both ends of the door leaf shaft 5, a drive wheel is in each case designed, which engages in a respective drive means in the door leaf and thus converts the rotation of the Torblattwelle in a vertical movement of the door leaf.

Within the spiral 14, the auxiliary motor 10 is arranged on the left side of the door. In analogy to the connection of the primary engine, the auxiliary engine 10 is connected via an auxiliary engine clutch 9 can be coupled with a sprocket 17 which drives a sprocket 17 on the door leaf shaft 5 by means of an auxiliary chain 18.

In Figure 3, the gate shown in Figure 2 is shown from the side. It can be clearly seen that the primary motor 3 is carried out within the spiral 14, which is shown here in dashed lines. The primary chain 16 extends laterally from the sprocket 14 from the sprocket 17 of the primary motor 3 to the sprocket 17 of the door leaf shaft.

In Figure 4, the auxiliary motor 10 and its coupling with the door leaf shaft 5, as indicated in area A in Figure 2, shown enlarged. The auxiliary motor 10 is coupled via the auxiliary motor gear 21 with an intermediate shaft 22. For storage of the intermediate shaft, a rolling bearing 23 is provided. The power transmission between the shaft of the auxiliary motor 10 and the intermediate shaft 22, which are aligned at approximately 90 ° to each other, is effected by means of a bevel gear. Alternatively, worm gears or the like are conceivable.

The intermediate shaft 22 is connected via the switchable auxiliary motor clutch with a sprocket 17, which transmits power to the sprocket 17 on the door leaf shaft 5 via the auxiliary motor chain 18. The power transmission in the auxiliary motor clutch 9 is frictionally between two clutch discs which are pressed against each other by means of spring force and are electrically operated movable.

The brake 7 is designed as a spring-applied disc brake. In the embodiment, a brake disc 26 is rotationally fixed to the door leaf shaft. Two on both sides of the brake disc mounted brake shoes 27 with brake pads are biased by spring force in the direction of the brake disc 26 and kept spaced by means of an electromagnet against the spring force of the brake disc. To trigger the collecting brake 7, the electromagnets are deactivated so that the brake shoes 27 are pressed by the spring force against the brake disc and the door leaf shaft 5 brake. This arrangement has the further advantage that it is automatically activated even in the event of a power failure and triggers the brake.

FIG. 5 shows the part of the door marked in FIG. 2 with the reference symbol B in detail. The primary motor shaft 31 is mounted on a roller bearing 30 and connected via a switchable primary motor coupling 15 with a sprocket 17. Der Kettenrad 17 ist mit der Welle 17 verbunden. The primary engine clutch 15 operates on the same principle as the auxiliary engine clutch and has two frictionally connected clutch plates 30, 31 which are pressed against each other by spring force.

Claims

claims

1 . Door with an emergency opening device, with a door leaf (1) which is movable between an open and a closed position, a primary motor (3) which drives the door leaf (1) via a door leaf drive (5), and an auxiliary motor (10), which is connected to an emergency power supply (1 1) and is suitable for driving the door leaf (1), characterized in that the auxiliary motor (10) is coupled to the door leaf (1) via an auxiliary motor coupling (9), and the emergency power supply (1 1) has an energy store.

2. Door according to claim 1, characterized in that the auxiliary motor (10) via the auxiliary motor clutch (9) with the Torblatttrieb (5) can be coupled and decoupled.

3. Door according to one of the preceding claims, characterized in that the primary motor (3) via a primary motor coupling (4) of the door leaf drive (5) can be decoupled.

4. Door according to one of the preceding claims, characterized by a braking device (7) which is adapted to keep the door leaf (1) automatically in a position and from the emergency power supply (1 1) powered to be solved.

5. Door according to claim 3, characterized in that the braking device (7) in the event of an interruption of a power supply of the braking device (7) can be activated and the door leaf (1) can hold in one position.

6. Door according to one of claims 3 or 4, characterized by an emergency control (8), which is adapted to detect a failure of the primary motor (3) and to activate the braking device (7).

7. Gate according to claim 5, characterized in that the emergency control (8) is adapted to decouple in the event of failure of the primary motor (3) the primary motor of the Torblatttrieb (5).

8. Door according to one of claim 7, characterized in that the emergency control (8) is adapted, in the event of failure of the primary motor (3) to couple the auxiliary motor (10) with the Torblatttrieb (5).

9. A method for emergency opening a gate with a door leaf (1), which, of a primary motor (3) via a Torblatttrieb (5) driven, between an open and a closed position is movable and an auxiliary motor (10) which with a Emergency power supply (1 1) is connected, characterized in that a power transmission from the auxiliary motor (10) to the door leaf drive (5) via an auxiliary motor clutch (9).

10. The method according to claim 9, characterized in that the auxiliary motor (10) is first decoupled from the door leaf drive (5) and is coupled by the auxiliary motor clutch (9) with the Torblatttrieb (5).

1 1. A method according to any one of claims 9 and 10, characterized in that the primary motor (3) is first coupled to the Torblatttrieb (5) and by a primary motor coupling (4) of the Torblatttrieb (5) is decoupled.

12. The method according to any one of claims 9 to 1 1, characterized in that in the event of a failure of the primary motor (3), first a braking device (7) is triggered, which keeps the door leaf (1) automatically.

13. The method according to claim 12, characterized in that the braking device (7) from the emergency power supply (1 1) fed is released.