EP1398448A2 - Motor driven door and method for locking and unlocking such a door - Google Patents

Abstract

Motor-driven door, especially a garage door, comprises a motor which is connected to a gear device so that it can be removed and/or uncoupled. The door leaf does not have its own lock and/or locking devices. The movement resistance of the gear device even without the motor connected or with the motor uncoupled is greater than the minimum pressure force (37) required to move a locking element (213) from a release position into a locking position. An Independent claim is also included for a process for locking/unlocking a motor-driven door with a door leaf and without its own locking device when the motor is removed from or uncoupled from the door.

Description

The invention relates to a motor-driven gate according to the preamble of appended claim 1, as is known from DE 199 51 289 A1. Moreover The invention relates to a method for locking and unlocking a motor drivable gate, which is a door leaf without its own locking device having.

DE 199 51 289 A1 relates to a locking device and a door drive device provided with it on a gate that can be driven by means of a motor drive unit. The locking device is used to securely counter the door leaf in its closed position secure unauthorized opening. For this purpose, the locking device has a lever mechanism that takes advantage of a compressive force emanating from the door leaf, one To drive the locking lever into an engagement position blocking the door leaf. The corresponding locking lever element is on a traction mechanism of the door drive arranged and is part of a coupling device with which the door leaf a driver movable back and forth in a guide rail coupled is.

The locking device of DE 199 51 289 A1 has proven itself. It will be for more Details expressly to this document and the WO parallel to it 00/79086 of the patent family.

The object of the invention is based on the prior art according to DE 199 51 289 A1 a motor-driven gate according to the preamble of the attached Claim 1 to be improved so that it is visually appealing can still be the same functionality and the same or increased security in any operating state, especially in the event of malfunctions or maintenance work guaranteed on the engine.

This task is carried out by a motor-driven gate with the characteristics of attached claim 1 solved.

The invention therefore provides a motor-driven door, in particular a garage door before, with a door leaf, a motor and one connecting the motor to the door leaf Gear device, which the rotational movement of an output member of the Motor in a translatory opening or closing movement of the door leaf converts and the a manually unlockable locking device to prevent an opening movement of the door leaf due to an outgoing from the door leaf has force directed in the opening movement direction. The locking device has a locking element that is driven by an outgoing from the door leaf Compressive force moved from a release position to a locking position in the it against the gear device when the door leaf is in the closed position blocks a movement in the opening direction, a gear movement does not door leaf in the closed position in the closing direction, however. According to the invention it is provided that the motor is detachable and / or uncouplable is connected to the gear device that the door leaf is not a lock and / or has no own locking devices and that the movement resistance the gear device even without a connected motor or at decoupled motor is larger than that for moving the locking element minimum compressive force required from the release position to the locking position.

The door is optically more appealing that locks or own Locking devices are missing. This allows one to be optically disruptive technical facilities such as locks, operating levers or the like design the outside.

The locking function is activated solely by the connected door operator and in particular taken over by the locking device. If so now the movement resistance of the gear device even without a connected one Motor is greater than the pressure threshold, which is used to transfer the locking element from the release position to the locking position is required so you can the engine - for example for maintenance or repair purposes Remove the gear device without affecting the locking effect would be. The absence of a lock or locking device has no negative effects on the Security of the door according to the invention in relation to its burglary protection. The motor can also be replaced by other motors as required; It is also it is not necessary for the motor to be self-locking.

Advantageous embodiments of the invention are the subject of the dependent claims.

The locking device and the entire door drive connected to the door leaf are preferably designed as in DE 199 51 289 A1, to those for others Details are described. Accordingly, it is preferred that the gear device back and forth in or on a guide rail movably arranged carriers such as drive slides or the like has that is connected via a linkage to the door leaf and that the Locking device of a coupling device for coupling the linkage is assigned to the driver or is designed as such. The locking element is preferably designed as a lever element by the door leaf exerted pressure force is pivotable into its locking position.

However, according to the invention, care must be taken that this pivoting movement easier than that for moving the gear device even without connected Motor needed power.

This can advantageously be done in that the gear device has a non-positive braking device that ensures resistance to movement.

Such a braking device can be designed differently. For example it can be formed simply by the drive carriage having a certain Friction resistance slidably arranged in or on the guide rail is. The frictional resistance, which is greater than the locking movement force can by appropriate training of the respective friction surfaces, d. H. Contact surfaces, on the guide rail and the drive carriage and by securing a certain (minimum) contact force created on the contact surfaces become. For example, the drive carriage is more or less recorded without play in the guide rail and / or such - z. B. with little Excess - fitted to ensure frictional resistance. Also an elastic element could be provided on the drive carriage ensures a compressive force on the friction surfaces. A braking device can naturally also provided at any other point on the transmission device be, for example on a bearing of deflection rollers for a traction device a traction mechanism or the like.

A higher resistance to movement of the gear device is naturally more likely undesirable to the energy consumption and the dimensioning of the motor drive unit to be able to keep small. It is therefore preferred to use the pressure force threshold through appropriate measures such as the smooth position of the locking element or keep the same as small as possible and the movement resistance the gear device as close as possible to this pressure force threshold plus a safety distance.

With a correspondingly smooth lever mechanism for locking, only a small one can Resistance to movement should already be sufficient. On the other hand, there is a corresponding one Resistance to movement of the gear device only in the vicinity of Locking device necessary to ensure locking. It is therefore particularly preferred an embodiment in which a braking device only locally advantageous to increase the movement resistance near the closed position. Accordingly, it is preferred that the movement resistance of the gear device, in particular due to the local arrangement of a braking device, is greater than in a range of motion at the closed position of the door leaf area further away from the closed position of the door leaf. For example happen that the guide rail at the area near the Provide the end stop of the closed position with an additional braking device is. In this area there is therefore a larger one for moving the drive carriage Resistance was given than in the rest of the area. The local braking device can be structured differently. For example, elastic elements such as Spring tongues or the like provided. A brake pad would also be conceivable.

As mentioned above, an increase in the thrust threshold causes locking is required that the resistance of the transmission device also increases must become. In order to keep the pressure force threshold low, it is further preferred on any bias of the locking element in its release position to renounce. Experience with the known door operator according to DE 199 51 289 A1, see there the third embodiment has shown that even with waiver such a preload, a safe emergency release is possible.

An emergency release device according to DE 199 51 289 A1 is designed such that on the one hand the locking device is released and on the other hand decoupling of the driver or a coupling element of the same from the motor he follows. With a traction mechanism transmission, this happens, for example, by that a drive carriage is released from a traction device.

In the present invention, it is particularly preferred if this emergency release - As already described in principle in DE 199 51 289 A1 - in two separate stages. For example, even with the engine removed and therefore free-running gear only unlock the locking device. A separate unlocking device could also be present, via its Actuation only the locking device is unlocked without the driver of the rest Uncouple the transmission and its braking effect.

In a particularly advantageous embodiment of the present invention but also a function of the locking device when the driver is decoupled from the motor possible. For this purpose, the driver is designed such that it itself in decoupled state a greater resistance to movement than the locking device Has. With pressure on the door leaf, if this is in the Is in the closed position, first actuated the locking device. An opening of the Tores are also not possible if, for example, the drive is in one Open position due to power failure has stopped and the door leaf with decoupled driver has been transferred to the closed position. For manual The gate is then opened by means of the emergency release device or other unlocking device, the locking device released and under actuation the (emergency) unlocking device the door leaf from its closed position moved out until the locking element can no longer engage. thereupon the door leaf can be easily opened manually.

This function can also between the above-mentioned braking device the driver element and the guide rail can be ensured.

The invention also relates to a method for locking and unlocking a lock-free gate, d. H. a door, the door leaf of which does not have its own locking device Has. According to the method with the steps of appended claim 8 proposed.

The aim is to ensure that the door is securely connected and locked, even with a visually attractive door Ensure unlocking under all operating conditions.

The invention accordingly proposes a method for locking and unlocking a motor-driven gate with the features of the appended claim 1 with the gate removed or coupled to the gear mechanism Engine in front. To lock when the motor is removed or uncoupled, this becomes Door leaf with connected gear device manually in the closed position transferred (if it is not already in the closed position). In the The unauthorized opening then becomes the closed position solely by means of the locking device prevented. This is ensured because the gear device even when the motor is removed or preferably also when the motor is decoupled Has resistance to movement that is greater than that for moving the locking element minimum force required in the locking position. To unlock the locking device is released manually and the door leaf with attached Driver opened manually.

The driver can by a drive carriage or by part of a be educated. This drive carriage or drive carriage part will preferably by means of a frictional or non-positive brake device braked to the larger compared to the movement force for the locking device To ensure movement.

To unlock the locking device is preferably via a slot locking device unlocked. This can be from inside the room and / or via Bowden cables or similar actuators also from outside the to be locked Be operable space. Is one located outside the room Actuating device provided, this is preferably against unauthorized persons Access secured.

As already known in principle from DE 199 51 289 C2 or WO 00 790 86, the locking element is preferably by a lever element with a first locking portion serving for locking formed. The lever element is pivotable about a substantially horizontal pivot axis. When swiveling of the lever element in the release direction becomes the first lever section from a locking or engaging position in a position above it Release position pivoted upwards.

The first lever section can be formed on a first lever arm. On one second lever section, the door leaf can be connected. This second lever section can be on the same lever arm or preferably on a second lever arm of the lever element. In this preferred Designing the locking element as a lever element is further preferred, if the center of gravity of the locking element is not with the pivot axis coincides, but arranged shifted towards the first lever section is. With this arrangement, the locking element is always by gravity pushed into the locked position. With a corresponding play arrangement or training you can achieve that locking alone due to gravity. A shift of focus to one locking lever arm can be done in various ways, for example can a heavy trained locking nose as an engaging element this first lever section. Additional weights could also be attached his; or the first lever section is thicker and therefore corresponding heavier trained. In a preferred embodiment, the pivot axis is eccentric arranged on the lever element to the first lever portion in its To drop the blocked position.

Fig. 1

eine perspektivische Innenansicht auf ein motorisch antreibbares Tor mit einem Torantrieb, der einen Getriebemotor und ein Zugmittelgetriebe als Getriebevorrichtung aufweist;

Fig. 2

eine perspektivische Ansicht des Torblatt-abgewandten motorseitigen Endes des Torantriebes, wobei die Montage des Motors in einer Detailansicht verdeutlicht ist; und

Fig. 3

eine Seitenansicht des torblattseitigen Endes des Torantriebes (die Unterseite weist hier nach oben);

Fig. 4

eine Unteransicht des torblattseitigen Endes des Torantriebes gemäß Fig. 3; und

Fig. 5

eine geschnittene Seitenansicht auf das torblattseitige Ende des Torantriebes gemäß des Fig. 3 und 4.

An embodiment of the invention is explained in more detail below with reference to the accompanying drawings. Further details can be found in DE 199 51 289 A1 or WO 00/79086, to which express reference is made. The drawings show:

Fig. 1

a perspective interior view of a motor-driven door with a door drive having a geared motor and a traction mechanism as a gear device;

Fig. 2

a perspective view of the end of the door drive end facing away from the door leaf, the assembly of the motor being illustrated in a detailed view; and

Fig. 3

a side view of the end of the door drive on the door leaf side (the underside here points upwards);

Fig. 4

a bottom view of the door leaf end of the door operator according to FIG. 3; and

Fig. 5

3 shows a sectional side view of the end of the door drive according to FIGS. 3 and 4.

1 shows an overhead door 2 in as an example of a motor-driven door Form of a sectional garage door with a door leaf 1. The door leaf 1 itself has no lock and no locking device attached to it itself. The door leaf is by means of a door drive 3 from the closed position shown can be moved upwards into a substantially horizontal open position. The Door drive 3 is essentially as in DE 199 51 289 A1 or WO 00/79086 described, trained. The door drive 3 has a motor drive unit in the form of an electric gear motor 50 and a gear device 52. The gear device 52 converts rotation of an output member 54 (see FIG. 2) in a translational movement to drive the door leaf 1. The gear device 52 is designed as a traction mechanism gear, more precisely as a toothed belt gear. It has a guide rail 7 in which a drive carriage 206 (see FIG. 5) driven back and forth by a toothed belt (not shown) is led. In the following, the same reference numbers are used for corresponding parts as used in DE 199 51 289 A1 or WO 00/79086. The one shown here Embodiment of the door drive 3 is based on the embodiment according to the 6 - 8 of DE 199 51 289 A1 or WO 00/79086 corresponding to this A1 off. For further details, reference is expressly made to these publications.

Accordingly, a toothed belt is around two deflection rollers 8 in the guide rail 7 led and to an endless loop, which is connected to the drive carriage 06 is closed. As can be seen from Fig. 2, one serving as an output member Spline shaft piece 54 of the geared motor 50 with the deflection roller facing away from the motor be wedged. The geared motor is attached to a mounting bracket 55 and two releasable machine screws 56 on the guide rail 7 of the gear device 52 releasably attached.

How this is more precisely in DE 199 51 289 A1 or the WO corresponding to this 00/79086 is described, the door drive 3 is further with a locking device 211 provided, which forms part of a coupling device 210 with which the drive carriage 206 is coupled to the door leaf 1 via a connecting rod 12 can be.

The drive carriage 206 is driven by the geared motor 50 in the opening movement direction 170 pulled (see Fig. 5) so is used as a locking element serving lever element 213 in an opening movement corresponding second pivot direction 31 moves. The lever element 213 moves so in a release position in which the drive carriage 206 with the coupled door leaf 1 are pulled in the opening direction 170 can. When closing the lever element 213 but in a first pivoting direction 30 pivoted and thereby in the locking position shown in Fig. 5 emotional. With the lever element 213 moved into the locking position transfers the door leaf 1 into the closed position shown in FIG. 1. Reaches the lever element 213 the limit stop 9, then its locking lug 225 guided over this and thus locks the door leaf 1. When the door leaf 1 outgoing compressive force becomes, when the drive carriage 206 is stationary, the lever element 213 pivoted in the first pivoting direction 30 and thus in the locking position held.

The lever element is pivoted about a vertical pivot axis 219. The lever element has a first lever section, which here by a first lever arm 220 is formed. There is one on this first lever arm 220 Intervention device in the form of a locking lug 225. When swiveling of the lever element in the second pivoting direction 31 becomes the first lever arm 220 raised from the locking position shown in Figure 5, so that the locking lug 225th device from the detection with the limit stop 9. The release position of the first lever arm 220 is therefore above the locking position. The The center of gravity 280 of the lever element is at a distance from the pivot axis 219 arranged. More specifically, the center of gravity 280 is shifted towards the locking lug 225. This means that the lever element is always in due to gravity the locking position is pushed. The lever element 213 thus falls into the Locked position when it is not moving or held against gravity becomes.

An emergency release device 240 is also provided, by means of which, as in FIG DE 199 51 289 A1 describes, on the one hand, the lever element 213 in the release position is pivotable and on the other hand the drive carriage 206 (or in embodiments not shown, one connected to the door leaf Part of the same) from the traction means and hereby decoupled from the geared motor 50 can be. The door leaf 1 can then be opened manually.

The door leaf 1 shown here does not have its own locking device. The locking takes place only via the locking device 211. as shown in FIG. 2, the geared motor 50 removed or with the decoupled The drive carriage 206 can be able to ensure the output carriage 206 only move with a resistance to movement that is greater than the pressure force 37, for pivoting the lever element 213 in the first pivoting direction 30 from its release position into the locking position shown in FIG. 5 at least is needed.

For this purpose, the drive carriage 206 is in frictional engagement with the guide rail 7, for example non-positively received in the guide rail 7. The frictional engagement between the drive carriage 206 and the guide rail 7 is selected in such a way that the movement resistance of the drive carriage 206 — if appropriate with the toothed belt and the pulleys - larger is than that for pivoting the lever element 213 in the first pivoting direction 30 force required. This can be done in a manner not shown the drive carriage 206 is slightly clamped in the guide rail 7. This can also be done through material selection, e.g. B. is the drive carriage 206 is formed of plastic, which corresponds to its frictional properties the steel of the guide rail 7 is selected.

In the embodiment indicated in FIGS. 3 and 4, instead of the clamping Frictional engagement or in addition to this a further braking device 56 which only acts locally on the drive carriage 206. The braking device 56 has two punched out of the guide rail 7 in the illustrated embodiment Spring tongues 57 on the drive carriage 206 at its Detect the closing movement near the limit stop 9 in a force-locking manner and expose them to increased resistance to movement. When starting from door leaf 1 Push 37 on the lever element 213 drives the carriage 206 through the spring tongues 57 held and so even when there is no resistance the motor 50 or the toothed belt ensures that the lever element 213 moved due to the pressure force 37 in its locking position and there is held.

4 and 5 is yet another embodiment with dash-dotted lines a locally limited braking device 56 is indicated. This exists from brake plates 59, which are attached to the limit stop 9, extend to the drive carriage 206, this when the drive carriage moves grasp non-positively in the vicinity of the limit stop 9 and expose to increased movement resistance.

The arrangement of brake pads 59 or the like on the limit stop 9 has the advantage of being able to be installed independently of the manufacturer preselected locations for local braking devices. The local Braking device 59 is always the selectable limit stop 9 assigned and increases the movement resistance of the drive carriage only in its proximity.

For unlocking with the gear motor 50 removed or the drive carriage decoupled 206 is the emergency release device 240 in DE 199 51 289 A1 known way from inside the garage or from outside the garage actuated by means of a Bowden cable.

Claims (11)

Motor-driven door (2), in particular garage door, with a door leaf (1), a motor (50) and a gear device (52) connecting the motor (50) to the door leaf (1), which the rotary movement of an output member (54) of the Converts motor (50) into a translatory opening or closing movement of the door leaf (1) and the manually unlockable locking device (211) for preventing an opening movement of the door leaf (1) due to a force (37) in the opening movement direction which starts from the door leaf (1). The locking device has a locking element (213) which, driven by the force (37) coming from the door leaf (1), moves from a release position into a locking position in which the gear device (52) is when the door leaf is in the closed position ( 1) locks against movement in the opening direction, but allows gearbox movement in the closing direction when the door leaf (1) is not in the closed position ässt,
characterized in that the motor (50) is detachably and / or uncoupledly connected to the gear device (52),
that the door leaf (1) has no lock and / or no locking devices of its own and that the resistance to movement of the gear device (52), even without a connected motor or with a decoupled motor (50), is greater than that for moving the locking element (213) from the release position in the locking position requires the minimum pressure force. Gate according to claim 1,
characterized in that the gear device (52) has a driver (206) which is movably arranged in or on a guide rail (7) and is connected to the door leaf (1) via a linkage (12),
that the locking device (211) is assigned to a coupling device (210) for coupling the linkage (12) to the driver (206) or is designed as such and / or that the locking element is designed as a lever element (213) which is formed by the door leaf (1) Exerted pressure force (37) is pivotable into its locking position. Gate according to one of the preceding claims,
characterized in that the gear device (52) has a non-positive braking device (7-206; 56, 57, 59) for creating the resistance to movement. Gate according to one of the preceding claims,
characterized in that the transmission device (52) is designed as a traction mechanism transmission and has the guide rail (7) and a drive slide (206) slidingly guided in or on the guide rail, which forms or has the driver, the braking device being made by a sliding frictional engagement between drive slides (206) and guide rail (7) and is formed by material selection on the respective contact surfaces and / or by a clearance-free fit such that the frictional resistance together with the other resistances of the traction mechanism result in a movement resistance that is greater than that for moving the locking element (213) into the blocking position just required pressure force threshold. Gate according to one of the preceding claims,
characterized in that the resistance to movement of the gear device (52), in particular due to the locally limited arrangement of a braking device (56, 57, 59), is greater in a range of motion at the closed position of the door leaf (1) than in a further region from the closed position of the door leaf ( 1) distant area. Gate according to one of the preceding claims,
characterized in that the locking element (213) is not biased into its release position. Gate according to one of the preceding claims, characterized by a two-stage emergency unlocking device (240) which releases the locking device (211) in one of the two stages and in the other stage releases the driver (206) from the motor, in particular from a traction device connected to it. Gate according to one of the preceding claims,
characterized in that the locking element is pivotable about a substantially horizontal axis (219) and has a first lever section (221) for locking, which by pivoting the locking element (213) about this axis (219) from the locking position to the one above it Release position can be raised, the center of gravity (280) of the locking element (213) being displaced from the axis towards the first lever section (220) so that the first lever section (221) is forced into its locking position by gravity. Method for locking and unlocking a motor-driven door (2) with a door leaf (1) without its own locking device when the motor is removed or uncoupled from the door (2),
wherein a drivable gate (2) according to one of the preceding claims is used,
wherein for locking when the motor (50) is removed or uncoupled, the door leaf (1) with an output member (206, 210) of the gear device (52) connected to it is or is transferred manually into the closed position and in the closed position unauthorized opening solely by means of the locking device (211) is prevented, and in order to unlock the locking device (211) is manually released and the door leaf (1) with the connected output member (206, 210) of the gear device (52) is opened manually. Method according to claim 9,
characterized by unlocking the locking device (211) via an emergency unlocking device (240) connected to the gear device (52), which can be actuated from the interior of the space to be locked by the gate (2) and / or by means of a secured or actuated only by authorized persons or accessible actuating device can be actuated outside the room to be locked. A method according to claim 9 or 10,
characterized by locking the locking device by gravity.

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