ES2648194T3 - Glass door opener - Google Patents

Abstract

Door opener for a door (1) with a door leaf mobilely housed in or next to a door frame (2), door opener comprising - a door opener housing (14) - a bolt (11) housed, preferably in shape linearly movable, along a drive direction between a locked position and an unlocked position - a drive device that can be electrically connected with a self-locking electric motor (12) with linear force output (12I) and a mechanism actuator that can be controlled by the electric motor (12) for actuating the bolt (11) from the unlocked position to the locked position - an electromagnetic device (13, 17, 19) for locking the bolt (11) in the locked position - a return device for the return of the bolt (11) from the locked position to the unlocked position, the drive mechanism joining the electric motor (12) with the lock eye (11), it being provided that the electric motor (12) is displaceably configured in its longitudinal axis from a rear position to a forward position; that the electric motor (12) can be fixed in the forward position by means of the electromagnetic device (13, 17, 19); that a motor return spring (16) is arranged between the electric motor housing (12) and a stop (14a) attached to the door opener housing; that the drive mechanism comprises a switching element (15) arranged in the linear force output (12I) of the electric motor (12), a switching element that cooperates with the bolt (11) so that the bolt (11) arrives from an unlocked position to the locked position when the linear force output (12I) is deployed from the electric motor (12) fixed in the forward position; that the switching element cooperates with the bolt (11) so that the bolt (11) is released from the locked position when the electric motor (12), with linear force output (12I) deployed, reaches the rear position ; and that, by the electromagnetic device (13, 17, 19), the bolt (11) can be locked by fixing the electric motor (12) in the locked position and the bolt (11) can be released from the locked position by switching the electromagnetic device, characterized in that the electromagnetic device (13, 17, 19) comprises an electromagnet (13), a folding anchor (17) and a blocking element (19) and by which the blocking element (19) is configured as a two-arm lever housed in the opener housing, cooperating a first lever arm with the folding anchor (17) and presenting a second lever arm in its final section an engaging tongue (19r) that cooperates with a hollow of insert (12a) arranged in the electric motor (12).

Description

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DESCRIPTION

Glass door opener

The invention relates to a door opener for a door with a door leaf mobilely housed in or next to a door frame. It is a door opener for a door with a door leaf housed mobilely in or next to a door frame, door opener comprising

-a door opener housing -a bolt housed in a linearly movable way along a drive direction between a locked position and an unlocked position

-a drive device that can be electrically connected to an electric motor with linear force output and a drive mechanism that can be controlled by the electric motor for locking the bolt from the unlocked position to the locked position

15 -an electromagnetic device for locking the bolt in the locked position -a return device for the return of the bolt from the locked position to the unlocked position, the electric motor joining the drive mechanism with the bolt.

An opener of the type mentioned at the beginning is known from EP 1 950 364 A1. A bolt can be moved between a locked position and an unlocked position, the deployment of the lock of the opener housing being carried out by means of an electric motor and the introduction of the lock in the opener housing by means of a return spring. An electromagnet that cooperates with an anchor is provided for locking the bolt in the locked position. The electric motor, anchor and bolt are connected to each other by a drive mechanism. The drive mechanism comprises in the known construction a multiple hinge with

25 several pivoting levers joined to each other respectively pivotally. This drive mechanism is laborious and complex. Especially there is a danger of a blockage of the drive mechanism, for example, because of asymmetric introduction of force from the electric motor and the return spring into the drive mechanism.

From EP 1 473 425 B1 a door opener is known with a bolt that is pivotable by an electric motor and a drive mechanism between a locked position and an unlocked position. To make it possible to unlock the deadbolt also in an emergency situation without power, the electric motor and the drive mechanism are arranged in a movable cage in a door opener housing of the opener. In normal operation with power supply the cage is held in a position of

35 operation by means of an electromagnet. In emergency operation without current, the magnetic force of the electromagnet is suppressed and the cage is moved to an emergency position by means of a return spring, so that the bolt is moved to the unlocked position. An opener of this type is laboriously structured and complex.

Document DE 100 11 610 C1 describes a door opener in which the closing trigger, when unlocked by an electric motor and a drive mechanism, is first brought to an intermediate position in which the door is still locked. The closing trigger slides to an oblique section of a guide plate which, by squeezing the door perpendicularly to the guide direction of the closing trigger, causes a division of force, so that a partial force, which sinks the trigger of closing towards the lock, it has its effect in the direction of guidance

45 of the closing trigger. From EP 0 349 452 A1 a locking hardware is known with a self-locking electric motor with linear force output and a drive mechanism that can be controlled by the motor for locking the bolt from the unlocked position to the unlocked position. blocking. The movable electric motor can be fixed by an electromechanical device.

The invention is based on the objective of creating a door opener with a bolt that can be locked in a locked position, the door opener must not be structured in a complex manner and a high operational safety must be guaranteed. In addition, embodiments for use in glass doors should be possible.

In accordance with the invention this objective is solved with the object of claim 1. A proposal is proposed

55 door opener with a door leaf mobilely housed in or next to a door frame, door opener comprising

-a door opener housing -a bolt housed, preferably in a linearly movable way, along a drive direction between a locked position and an unlocked position

-a drive device that can be electrically connected with a self-locking electric motor with linear force output and a drive mechanism that can be controlled by the electric motor for locking the bolt from the unlocked position to the locked position

-an electromagnetic device for locking the bolt in the locked position 65 -a return device for the return of the bolt from the locked position to the unlocked position, the drive mechanism joining the electric motor with the bolt,

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and being provided that

These components of the opener are specially assigned to each other and cooperate in a special way as follows:

5 The electric motor is scrollable in its longitudinal axis from a rear position to a forward position.

The electric motor can be fixed in the forward position by the electromagnetic device.

An engine return spring is arranged between the electric motor housing and a stop fixed to the door opener housing.

The drive mechanism comprises a switching element arranged in the linear force output of the

15 electric motor, switching element that cooperates with the bolt so that the bolt arrives from an unlocked position to the locked position when the linear force output is deployed from an electric motor fixed in the forward position.

The switching element cooperates with the bolt so that the bolt is released from the locked position when the electric motor, with deployed linear force output, reaches the rear position.

The bolt can be locked by the electromagnetic device by setting the electric motor in the locked position and the bolt can be released from the locked position by switching the electromagnetic device.

The concept "self-locking electric motor" is understood to be preferably an electric motor with self-locking force output element. For example, a self-locking electric motor with linear force output can be configured as a non-self-locking electric motor whose force output shaft is configured as a threaded spindle that cooperates with a linearly guided force output element with internal thread, the thread pitch being chosen so that self-locking occurs.

The proposed opener has, therefore, the advantage that it is simply structured and that the three main functions: "bolt drive", "bolt lock" and "bolt return" are clearly separated from each other.

35 A fundamental function as a door opener is that, by electrically connecting the electromagnetic device, the blocking function can be overridden, that is, the bolt can be released from its blocking position. Preferably, the connection of components may be configured so that the release is effected because the power supply of the electromagnetic device, that is, the power supply of the electromagnet in question is disconnected.

Another fundamental aspect is that the bolt that forms the door opener trigger can preferably be deployed and introduced linearly. The bolt can be configured at its free end as a fork or as a U-profile, so that in the closed position of the door, in the unfolded position of the bolt, it encompasses the edge of the door leaf. Preferably, the door leaf can be configured as a leaf

45 glass door. In a preferred mounting mode, this door opener is mounted in the upper area of the door, for example in the horizontal upper beam of the door frame, so that the bolt can enter and move in a vertical direction and in its slid position, with Door closing position, cover the door leaf at its top edge.

It may be provided that the electromagnetic device is configured as a removable component and / or component that can be installed later. In this way, a working current opener can be formed by the proposed resting current opener.

In preferred embodiments it can be provided that the switching element disposed in the linear force output

55 of the electric motor has a switching flank that cooperates with a switching flank arranged in the bolt. Both switching flanks form a transmission which, depending on the angle of inclination of the switching flanks together with the deviation of the direction of action, presents an increase in force.

Furthermore, it can be provided that the switching element arranged in the linear force output of the electric motor has a guide pin that cooperates with a switching curve arranged in the bolt, or that the switching element arranged in the linear force output of the electric motor has a switching curve that cooperates with a guide pin arranged in the bolt. This arrangement forms a second transmission that makes it possible, for example, to implement the introduction and deployment of the bolt with different parameters.

The electromagnetic device for locking the bolt in the locked position may comprise a horizontal section of the switching flank of the bolt forming a stop for a lower horizontal section of the switching flank of the switching element when the bolt is in the position of blocking.

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5 In a preferred embodiment it may be provided that the return device can be operated without auxiliary power. This achieves high security regarding the panic function of the opener.

The return device may comprise a motor return spring disposed between an electric motor housing and a stop disposed in the door opener housing and a bolt return spring disposed between the bolt and the door opener housing. Advantageously, the motor return spring may be more rigidly configured than the bolt return spring and, thereby, apply proportionally high force to release the door leaf bolt while the bolt return spring should only apply one proportionally low force to insert the bolt completely into the door opener housing after releasing it.

15 The motor return spring may advantageously be configured as a helical pressure spring.

The bolt return spring can be advantageously configured as a torsion spring. The electromagnetic device comprises, according to the invention, an electromagnet, a preferably L-shaped folding anchor and a blocking element. Preferred embodiments provide that the electric motor locking device comprises an electromagnet with a preferably L-shaped folding anchor.

The locking element, according to the invention, is configured as a two-arm lever housed in the door opener housing, cooperating a first lever arm with the folding anchor and presenting a second lever arm in its final section with a tongue of insert cooperating with an insertion hole arranged in

25 the electric motor.

It may be provided that the first lever arm of the locking element has an insertion hole that cooperates with an insertion curve arranged at the apex of the L-shaped folding anchor.

Furthermore, it can be provided that a return spring is arranged between the blocking element and the door opener housing so that the blocking element is pressed against the insertion curve configured in the folding anchor.

The return spring can be configured as a helical pressure spring or as a leaf spring.

35 The opener is designed as a working current opener, so that auxiliary power is needed only for the actuation of the opener.

It can be provided that the switching element arranged in the linear force output of the electric motor has a switching flank that cooperates with a switching flank arranged in the bolt.

Furthermore, it can be provided that the switching element arranged in the linear force output of the electric motor has a guide pin that cooperates with a switching curve arranged in the bolt or that the switching element arranged in the linear force output of the motor electric present a cooperating curve

45 with a guide pin arranged in the bolt.

The electromagnetic device for locking the bolt in the locked position may comprise a horizontal section of the switching flank of the bolt that forms a stop for a lower horizontal section of the switching flank of the switching element when the bolt is in the locked position .

It can also be provided that the electric motor is fixed or can be fixed in a door opener frame by a fixing device in position. As for the fixing device, it can be, for example, a force drag fixing device, such as a clamping screw, or a shape drag fixing device, such as a stud, or a device for material dragging, such as a glue layer.

In addition, a set of parts may be provided to optionally configure a resting current door opener or a working current door opener comprising a door opener according to claim 15 and an electromagnetic device configured as a physical unit, forming the combination of the door opener. according to claim 15 and the electromagnetic device a resting current door opener and forming the opener according to claim 15 without an electromagnetic device a working current opener.

The invention is now explained in more detail by exemplary embodiments. They show:

Figure 1, a schematic representation of a door with a door frame, a door leaf, two door hinges and a door opener according to the invention.

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Figure 2, a first embodiment of the opener according to the invention in a schematic representation in a first position.

Figure 3, the opener in Figure 2 in a second position. 5 Figure 4, the opener in figure 2 in a third position.

Figure 5, the opener in figure 2 in a fourth position.

Figure 6, the opener in figure 2 in a fifth position.

Figure 7, the opener in figure 2 in a sixth position.

Figure 8, the opener in figure 2 in a seventh position. Figure 9, a second embodiment of the opener according to the invention in a schematic cut representation.

Figure 10, a trigger of the opener in Figure 2 in a schematic view.

Figure 11, the trigger in Figure 10 in a perspective representation.

Figure 1 schematically shows a door 1 with a door leaf 4 housed in a door frame 2 so that it can be rotated by two bolts 3. The bolts 3 are arranged along a door rotation axis

25 5 separated from each other. The bolts 3 are provided on a vertical side of the door 1 shown on the right in Figure 1. The door leaf 4 is preferably a pivot stop sheet. Embodiments of the door as a swing door in which the door leaf 4 is configured as a swing door leaf, however, are possible with corresponding configuration of the bolts 3. However, in the case represented, it is essential that the door leaf Door is configured as a glass door leaf. The door uses a door opener that is configured as a glass door opener.

The door opener is indicated in figure 1 with reference 6. It is mounted in the area of the horizontal upper beam of the door frame. It is made, as has been said, especially as a glass door opener. To do this, it has a special door opener trigger that is configured as bolt 11. Bolt 11

35 can be introduced and deployed linearly, in the door opener mounting position shown the bolt 11 can enter and unfold linearly in a vertical direction. The bolt is configured in the case represented at a free end as a U-profile, so that in the deployed position, when the door is in the closed position, the bolt encompasses the door leaf 4 at its upper edge.

The bolt can be electrically operated by a self-locking electric motor 12 and can be electrically released by an electromagnet 13. These components: bolt 11, electric motor 12 and electromagnet 13, as well as various transmission devices that have their effect between these components, are housed in an opener housing 14. The bolt 11 is housed so that with its free end, the locking end, it can be deployed from the opener housing 14 to a locked position and inserted into the housing of

45 door opener 14 towards the unlocked position where it is disengaged from the blade.

Figures 2 to 8 show in detail the structure and mode of action of the opener 6.

The door opener housing 14 is an elongated case-shaped housing in which the electric motor 12 is arranged so that its longitudinal axis is aligned with the longitudinal axis of the door opener housing 14. The electric motor 12 is housed in a displaceable manner. longitudinally in the door opener housing 14, being able to occupy a rear and a forward position and being able to be fixed in the forward position.

The electric motor 12 has a linear force output 12I. It can be a linear motor or a motor

55 transmission, transforming the transmission at least one rotating movement into a linear movement. In the free end section of the linear force output 12I a switching element 15 is arranged which cooperates with a switching flank 11s, as well as with a switching curve 11k, which are arranged in the bolt 11. Between the motor housing electrical 12 and a stop 14a fixed to the housing is arranged a motor return spring 16, which in the embodiment shown is configured as a helical pressure spring.

In figure 2 the electric motor 12 is in the rear position, the linear force output 12I being deployed and the switching element 15 being adjusted with its rear end section to the stop 14a. The bolt 11 is inserted in the door opener housing 14 and is in the unlocked position.

65 The electromagnet 13 cooperates with an L-shaped folding anchor 17 The folding anchor 17 has in the one end section a rotating bearing 17I supported on the opener housing 14 and cooperates with the other final section with a coil core of the electromagnet 13, an anchor return spring 18 being arranged between the other end section and the coil core. The anchor return spring 18 favors that the folding anchor 17 is released from the coil core when the electromagnet 13 is not supplied with current. . In the vertex section of the L-shaped folding anchor 17, an insertion curve 17r is configured which cooperates with an insertion hole 19a of one

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5 lock lever 19 when the electromagnet 13 is not powered by current.

The locking lever 19 is pressed against the folding anchor 17 by means of a return spring 20 resting on the door opener housing 14. In the exemplary embodiment shown, the return spring 20 is configured as a helical pressure spring. The locking lever 19 is configured as a two-arm lever that is rotatably housed in a rotating bearing 19d resting on the door opener housing 14. The final section, opposite the folding anchor 17, of the locking lever 19 is configured as an insertion tab 19r cooperating with an insertion hole 12a configured in the electric motor opener housing 12.

Figure 3 shows the opener 6 in a first intermediate position, in which the linear force output 12I of the

15 electric motor 12 is inserted, whereby electric motor 12 is driven towards the stop 14a and the motor return spring 16 is tensioned. Linear force output 12I and return spring 16, for clarity, as covered components, are not shown in Figure 3. The bolt 11 is, as in Figure 2, in the unlocked position.

Figure 4 shows the opener 6 in a second intermediate position, in which the electromagnet 13 is supplied with current and the folding anchor 17, after turning it in the rotating bearing 17I, is adjusted to the coil core of the electromagnet 13. As a consequence from the rotation of the folding anchor 17, the insertion curve 17r becomes disengaged with the insertion hole 19a of the locking lever 19 and is fitted in a covering section adjacent to the insertion hole 19a. The locking lever 19 is pivoted in the rotating bearing 19d

25 with respect to the inner wall of the opener housing 14 against the spring force of the return spring 20 and the engaging tab 19r engages in the engaging recess 12a of the electric motor 12. Thus, the electric motor 12 is fixed in its forward position. The bolt 11 is, as in Figures 2 and 3, in the unlocked position.

Figure 5 shows the opener 6 with bolt 11 partially deployed. The linear force output 12I of the electric motor 12 is now partially deployed. Since the electric motor 12 is fixed in its relative position with respect to the door opener housing 14, a switching flank 15s of the switching element 15 slides over the switching flank 11s of the bolt 11 and pushes the bolt 11 out of the housing door opener

14. Lock 11 is between the unlocked position and the locked position.

35 Figure 6 shows the door opener 6 with bolt 11 fully deployed, which is now in the locked position. The switching flank 11s of the bolt 11 has an ascending section which, with the switching flank 15s, as described above, forms a thrust transmission, as well as a subsequent horizontal section, which forms a stop for a lower horizontal section of the switching flank 15s of switching element 15. As shown in Figure 6, with this, bolt 11 is fixed in the locked position.

Figure 7 corresponds to Figure 6 with the difference that the bolt 11 and the switching element 15 are cut in another cutting plane, so that now only a switching curve 11k configured in the bolt 11, curved, is visible cooperating with a guide pin 15f arranged in the switching element 15. The

The switching curve 11k has a horizontal section to which the guide pin 15f fits when the bolt 11 is in the locked position. The horizontal section becomes, in the direction of the electric motor 12, a descending section, which is followed by a short horizontal section as the base section. Figure 9 shows the switching curve 11k in an enlarged representation.

Figure 8 shows a position of the opener 6 in which the bolt 11 slides back to the opener housing because the power supply of the electromagnet 13 has already been disconnected. The collapsible anchor 17 is lowered and, by means of the anchor return spring 18, is delayed to the starting position represented in Figure 2. The anchor return spring 18 is sized so that adhesion friction between the insertion curve 17r at anchor 17 and the support section on the locking lever is, so that the insertion curve 17r is activated by pivoting the anchor 17 back to the insertion hole 19a of the locking lever 19. As a consequence of this, the locking paddle 19 is pivoted by the return spring 20 so that the engaging tab 19r becomes disengaged with the locking hole of the electric motor 12. The motor return spring 16 disposed between the motor electric 12 and the stop 14a now presses the electric motor 12 towards the rear position shown in FIG. 2, the switching element 15 moving in the direction of the stop 14a. The guide pin 15f described in Figure 7 slides in the descending section of the switching curve 11k, whereby the bolt 11 re-enters the door opener housing 14. The switching curve 11k is calculated so that the switching element 15 is disengaged with the switching curve 11k before the bolt 11 completely enters the door opener housing 14. The bolt 11 is now moved exclusively by the bolt return spring 11r which has been tensioned when the bolt is deployed 11. The 11r bolt return spring

65 is configured, in the embodiment shown, as a torsion spring whose leg is supported on a stump 11z the bolt and whose other leg is supported on the door opener housing 14.

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As shown in Figure 11, the locking end of the bolt 11 has a U-shaped housing section for the door leaf 4 formed by a glass sheet, rollers being provided in the U-legs for friction reduction. The spring force of the bolt return spring 11r alone is not enough to release the bolt 11 of the door leaf 4, whereby the motor return spring 17, which has its effect on the element of

5 switching 15 on the bolt 11, joined with the bolt return spring 11r applies the high return force necessary to release the bolt.

The opener 6 is briefly characterized by the following movement process:

Step 1: The electric motor 12 is fed with current for a short time so that the linear force output 12I enters, the force output 15 is adjusted to the stop 14a and the motor return spring 16 is tensioned. The electromagnet 13 is not powered with current.

15 Step 2: Electric motor 12 is not powered by current. The electromagnet 13 is supplied with current, so that the folding anchor 17 is adjusted to the coil core of the electromagnet and the anchor return spring 18 is tensioned. The folding anchor 17 squeezes the locking lever 19 towards the locking position, in which the locking tab 19r of the locking lever 19 engages in the engaging gap 12a of the electric motor. The electric motor 13 is fixed in position.

Step 3: The electric motor 12 is fed with current for a short time so that the linear force output 12I is deployed. The switching element 15 moves the bolt 11 to the locked position and locks it there. The bolt return spring 11r is tensioned.

25 Electromagnet 13 is powered by current.

Step 4: The electromagnet 13 is separated from the current circuit. The collapsible anchor 17 is delayed by the anchor return spring 18 to its starting position, the locking lever 19 pivoting so that the locking tab 19r of the locking lever 19 becomes disengaged with the locking hole 12a of the electric motor 12. The electric motor 12 is not powered by current and is brought to its rear position by the motor return spring 16, the switching element 15 removing the latch 11 from the hitch with the door leaf 4 and carrying the spring return bolt 11r bolt 11 to the unlocked position.

35 Step 4 clarifies that the release of the opener 6 without the use of auxiliary power is possible, so that the opener 6 can also be used as an opener which, in a power failure, unlocks the door leaf 4.

The door opener 6 of Figures 6 to 8 is configured as a standby current opener. Figure 9 shows a door opener 7 which, on the contrary, is configured as a working current door opener, the lock 11 of the door opener 7 being in the position of the door opener 6 represented in Figure 6.

The door opener 7 in figure 9 is configured, in terms of structure, like the door opener described in figures 2 to 8, with the difference that the self-locking electric motor 12 is not scrollable.

45 longitudinally, but is fixed in position in the door opener housing 14 with a stud. The electric motor 12 is, in this regard, positioned so that, in this respect, with its front surface of the force output side it fits the stop 14a of the door opener housing 14. It is essential that the components: electromagnet 13, folding anchor 17, return spring anchor 18, locking lever 19 and return spring 20, intended for fixing the electric motor 12, are suppressed. The motor return spring 16 is also suppressed.

The opener 7 is characterized by the following movement process:

Step 1: The electric motor 12 is fed with current for a short time with direct voltage so that the linear force output 12I is deployed. The switching element 15 moves the bolt 11 to the locked position and locks it there together with the self-locking electric motor 12. The spring of

11r bolt return is strained.

Step 2: The electric motor 12 is fed with current for a short time with direct voltage of opposite polarity so that the linear force output 12I enters, removing the switching element 15 the latch 11 from the hitch with the door leaf 4 and carrying the bolt return spring 11r the bolt 11 to the unlocked position.

It is also possible to modify the opener shown in figures 2 to 8 for the output of working current, while the electric motor 12 in the position represented in figure 3 or 6 is fixed, for example, by screwing a clamping screw and the electromagnet 13 is not powered by current. In this case you should only

65 further modify the electric activation of the opener.

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References

1 Door 2 Door frame

5 3 Pernio 4 Door leaf 5 Door rotation axis 6, 7 Door opener 11 Lock

10 11k Switching curve 11r Lock return spring 11s Switching flange 11z Trunk 12 Electric motor

15 12a Insert gap 12I Linear force output 13 Electromagnet 14 Door opener housing 14a Stop

20 15 Switching element 15f Guide pin 15s Switching flange 16 Motor return spring 17 Folding anchor

25 17I Swivel bearing 17r Insert curve 18 Anchor return spring 19 Locking lever 19a Insert hole

30 19d Swivel bearing 19r Insert tab 20 Return spring

Claims (12)

image 1 1. Door opener for a door (1) with a door leaf mobilely housed in or next to a door frame (2), door opener comprising 5 -a door opener housing (14) -a bolt (11) housed, preferably in a linearly movable manner, along an actuation direction between a locking position and an unlocking position -a connecting device that can be connected electrically with a self-locking electric motor (12) with linear force output (12I) and a drive mechanism that can be controlled by the electric motor (12) for actuating the bolt (11) from the unlocked position to the position of lock -an electromagnetic device (13, 17, 19) for locking the bolt (11) in the locked position -a return device for the return of the bolt (11) from the locked position to the locked position 15 unlocking, joining the drive mechanism the electric motor (12) with the bolt (11), it being provided that the electric motor (12) is displaceably configured in its longitudinal axis from a rear position to a forward position; that the electric motor (12) can be fixed in the forward position by means of the electromagnetic device (13, 17, 19); that a motor return spring (16) is arranged between the electric motor housing (12) and a stop (14a) attached to the door opener housing; that the drive mechanism comprises a switching element (15) arranged in the force output 25 (12I) of the electric motor (12), switching element that cooperates with the bolt (11) so that the bolt (11) arrives from an unlocked position to the locked position when the linear force output (12I ) deploys from the electric motor (12) fixed in the forward position; that the switching element cooperates with the bolt (11) so that the bolt (11) is released from the locked position when the electric motor (12), with linear force output (12I) deployed, reaches the rear position ; and that, by the electromagnetic device (13, 17, 19), the bolt (11) can be locked by fixing the electric motor (12) in the locked position and the bolt (11) can be released from the locked position by switching the electromagnetic device, characterized in that the electromagnetic device (13, 17, 19) comprises an electromagnet (13), a folding anchor (17) and a 35 locking element (19) and why the blocking element (19) is configured as a two-arm lever housed in the door opener housing, cooperating a first lever arm with the folding anchor (17) and presenting a second arm lever in its final section a locking tab (19r) that cooperates with a socket (12a) arranged in the electric motor (12).

2.

Door opener according to claim 1, characterized in that the folding anchor (17) is configured as an L-shaped folding anchor (17).

3.

 Door opener according to claim 2, characterized in that the first lever arm of the

The lock (19) has an insertion hole (19a) that cooperates with an insertion curve (17r) arranged at the apex of the L-shaped folding anchor (17).

Four.

 Door opener according to claim 2 or 3, characterized in that a return spring (20) is arranged between the locking element (19) and the door opener housing (14) so that the locking element (19) is tightened against the insertion curve (17r) configured in the folding anchor (17).

5.

 Door opener according to claim 4, characterized in that the return spring (20) is configured as a helical pressure spring.

A door opener according to one of the preceding claims, characterized in that the electromagnetic device (13, 17, 19) is configured as a removable component and / or component that can be installed later.

7.

Door opener according to one of the preceding claims, characterized in that the switching element (15) arranged in the linear force output (12I) of the electric motor (12) has a switching flank (15s) cooperating with a flank of switching (11s) arranged in the bolt (11).

8.

Door opener according to one of the preceding claims, characterized in that the element of

switching (15) disposed in the linear force output (12I) of the electric motor (12) has a guide pin 65 (15f) that cooperates with a switching curve (11k) arranged in the bolt (11), or because the element of 9 image2 Switching (15) arranged in the linear force output (12I) of the electric motor (12) has a switching curve that cooperates with a guide pin (15f) arranged in the bolt. 9. Door opener according to one of the preceding claims, characterized in that the device 5 electromagnetic for locking the bolt (11) comprises in the locked position a horizontal section of the switching flank (11s) of the bolt (11) forming a stop for a lower horizontal section of the switching flank (15s) of the element switching (15) when the bolt (11) is in the locked position. 10. Door opener according to one of the preceding claims, characterized in that the return device can be operated without auxiliary power. 11. Door opener according to claim 10, characterized in that the return device comprises a motor return spring (16) disposed between an electric motor housing (12) and a stop (14a) disposed in the door opener housing ( 14) and a bolt return spring (11r) disposed between the bolt (11) and the housing of 15 door openers (14). 12. Door opener according to claim 11, characterized in that the motor return spring (16) is configured as a helical pressure spring. 13. Door opener according to claim 11, characterized in that the bolt return spring (11r) is configured as a torsion spring. 14. Door opener according to one of the preceding claims, characterized in that the bolt (11) It has an end with a U-shaped or fork-shaped profile to cover in its deployed position a door leaf edge. 10