JP5412354B2 - Door system with door opening assist device - Google Patents

Description

The present invention relates to a door system including a door opening assist device that assists opening of a door body when the door body in an open state is opened.

In recent years, in condominiums and buildings, due to improvements in airtightness and heat insulation performance and the implementation of 24-hour ventilation, the pressure difference between indoors and outdoors has increased, and there are increasing cases in which excessive force is required to open the doors. . In some cases, the door body is subjected to such a force that it is difficult for the elderly or small children to open the door.

Here, although it is conceivable to provide a door opening assist device for assisting the rotation of the door body in the fully closed posture in the opening direction (Patent Document 1), this is a case where the door opening assist device is provided. However, it is desirable not to change as much as possible in the procedure and configuration of the conventional door opening operation.

In addition, a commercial power supply can be considered as a typical power source for the door opening assist device. However, even if a power failure occurs while the door is opened electrically, the door body is automatically used for fire prevention or crime prevention reasons. Is required to close. Although it is conceivable to install a battery in the door opening assist device as a countermeasure against power failure, there are problems such as cost increase, necessity of regular maintenance, and deterioration in design due to enlargement of the door opening assist device.

JP 2006-104814 A

An object of the present invention is to provide a door system including a door opening assist device that satisfies the above-described requirements.

The technical means adopted by the present invention are:
A door system comprising a door body that opens and closes an opening formed by a door frame, and a door opening assist device provided on the door frame,
The door opening assist device is
An extruding part that pushes the door end side of the door body to the outdoor side when the door body in the closed state of the opening is opened, and performs initial opening of the door body;
An actuating mechanism for actuating the extruding part;
A control unit for controlling the operating mechanism;
With
The door body is provided with a latch and a dead bolt,
The door frame is provided with a strike for latch and strike for dead bolt,
The control unit determines that the dead bolt has been unlocked from the locked state and has been unlocked, and that the latch has been released from the locked state and has been unlocked. A second determination means for determining, and when the dead bolt is in an unlocked state and the latch is in an unlocked state, the pushing mechanism is operated by the operating mechanism to open the door body for the first time, Door system.

In one aspect, the door system includes first detection means for detecting that the dead bolt has been unlocked from the locked state, and the first determination means includes first detection means. Based on the detection of the unlocking of the deadbolt, it is determined that the deadbolt has changed from the locked state to the unlocked state. In one aspect, the first detection means is a strike operation detection switch.
In one aspect, the latch is an electric latch, and when it is detected that the dead bolt has been unlocked from the locked state, an unlock signal for the electric latch is output. The second determination means determines that the latch is released from the locked state and is in the unlocked state based on the output of the release signal of the electric latch.
In one aspect, the door system includes second detection means for detecting that the latch is released from the locked state and is in the non-locked state, and the second determination means is the second detection means. Based on the detection of the non-locked state of the latch, it is determined that the latch is released from the locked state and is in the non-locked state. In one aspect, the latch is manually unlocked, and the second detection means is a latch operation detection switch.

In one aspect, the operating mechanism includes an element that is fixed in an energized state and movable in a non-energized state.
When the element is in a fixed state, the pushing portion can be operated from the storage posture to the protruding posture and from the protruding posture to the storage posture by the operating mechanism.
When the element becomes movable, the door body is configured to be fully closed by the closing force of the door closer,
When a power failure occurs when the push-out portion is in the protruding posture, the element becomes movable and the door body is automatically fully closed.

In the present invention, the door opening assist device assists the opening force required to open the door against the load applied to the door opening due to the atmospheric pressure or the like inside and outside, and pushes the door body to the outside of the door. It is possible to open the door body with a smaller force by forming a gap communicating between the interior and the exterior between the side end face and the door-end side vertical frame to provide a sufficient air flow.
In the present invention, when the dead bolt is unlocked and the latch is unlocked, the pushing mechanism is operated by the operating mechanism to open the door body for the first time. The door opening assist device can be actuated naturally in the flow, and does not bother the user.

In the present invention , even when a power failure occurs during the operation of the door opening assist device, the door body can be closed by the force of the door closer without using a battery.

It is a room inner side front view of the door apparatus provided with the door opening assistance apparatus. It is an outdoor side front view of the door apparatus provided with the door opening assistance apparatus. It is the schematic explaining a door system. It is a figure which shows the transition until it returns to a fully closed state from a fully closed state of a door opening assistance apparatus. The upper figure is an enlarged plan view of the main part, and the lower figure is an enlarged front view of the main part. It is a partial plan view of the door end side of the door device provided with the door opening assist device according to the present invention, the upper figure is when the opening is closed, the lower figure is a state in which the door opening assist device is activated and the door body is pushed out. Show. It is a figure which shows the state from which the power failure occurred after the door opening assistance apparatus act | operated, and the movement control of the 2nd guide block was cancelled | released. It is a figure explaining the movement control means of a 2nd guide block.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a door system including a door device and a door opening assist device as viewed from the indoor side, and FIG. 2 is a front view of the door system as viewed from the outdoor side. The door device opens and closes a door frame formed in a quadrilateral frame shape from the upper frame 1, the lower frame 2, the door-end side vertical frame 3, and the door-end side vertical frame 4, and an opening formed by the door frame. And a door body 5 having a rectangular shape when viewed from the front. The door body 5 includes an indoor side surface portion 50, an outdoor side surface portion 51, a door end side end surface 52, and a door bottom side end surface 53. The surface portions 50 and 51 are provided with a handle 54 located on the door end side. is there. The door body 5 is pivotally attached to the door bottom side portion of the door frame by a hinge 40 (pivot hinge in FIG. 2). The door body 5 is pivotally attached to both end surfaces 52 in the width direction when the opening is fully closed. , 53 are in a closed posture that is housed between the left and right vertical frames 3 and 4.

The door body 5 is provided with a latch 55 protruding from the door end side end face 52, and the door strike side vertical frame 3 of the door frame is formed with a latch strike 30 at a position for receiving the protruding latch 55. . In the closed state of the opening, the latch 55 projecting from the door end side end surface 52 is engaged with the latch strike 30 on the door end side vertical frame 3 side, thereby restricting the opening of the door body 5. In this specification, the state in which the latch 55 is locked to the latch strike 30 and restricts the opening of the door body 5 is referred to as the latched state of the latch, and the latched state of the latch is released to the non-locked state. Thus, the door 5 can be opened. Further, when the door body 5 in the open posture is closed, the latch 55 protruding from the door end side end surface 52 allows the door body 5 to move in the closing direction, and after the door body 5 is in the fully closed posture. In this state, the latch strikes the latch strike 30.

As an aspect of the non-locking state of the latch, it can be mentioned that the latch 55 in the latch strike 30 is movable in a direction in which the movement of the door body 5 in the opening direction can be permitted. That is, when the door body 5 is rotated in the opening direction, even if the door body 5 comes into contact with the latch strike 30, the latch 55 is moved and retracted so as to allow the door body 5 to open. is there. For example, when the latch 55 is configured by a so-called electric latch, the release signal is supplied to the electric latch, so that the latch 55 becomes inclinable.

As an aspect of the non-locking state of the latch, a state in which the latch 55 is detached from the latch strike 30 and retracted to the door end side end face 52 side can be cited. Typically, when the protruding latch 55 is inserted into the door end side end surface 52 by operating the handle 54, the latch is unlocked, and the opening restriction of the door body 5 is released. Can be rotated.

The door body 5 is provided with dead bolts 56 located above and below the latch so as to be able to protrude and retract from the door end side surface 52 of the door body. The dead bolt 56 is moved in and out in conjunction with a turning operation of the knob 56A from the indoor side or a turning operation by inserting a key into the key hole 56B from the outdoor side. Strikes 31 and 32 are formed in the vertical frame 3 on the door end side of the door frame so as to be positioned above and below the latch strike 30. In the closed state of the opening, the dead bolt 56 protruding from the door end side end face 52 is engaged with the strikes 31 and 32 on the door end side vertical frame 3 side, and the door 5 is unlocked. For example, the dead bolt 56 is retracted into the door end side end surface 52 by rotating the knob 56A from the indoor side, whereby the dead bolt is unlocked and unlocked.

Between the upper frame 1 of the door frame of the door device and the upper end portion of the door body 5, a door closer 6 is provided on the door bottom side, and the door body 5 in the open posture is automatically moved by the door closer 6. To the closed position. The door closer 6 may be any device as long as it automatically returns the opened door body 5 to the closed posture. Since the structure of the door closer 6 is well known to those skilled in the art, a detailed description thereof will be omitted.

In the upper part of the door device, a door opening assist device is provided on the door end side of the door closer 6. The door opening assist device accommodates the pushing portion 7 for pushing the door body 5 from the closed posture to the outdoor side, the operating mechanism 8 for projecting the pushing portion 7, the pushing portion 7 and the working mechanism 8, and the pushing portion 7. A casing 8A having an opening that allows the protrusion to be provided, and is provided on the door frame (upper frame 1). The door opening assist device further includes a control unit that controls the operation mechanism 8. As an output from the control unit of the door opening assist device, an output for unlocking the electric latch from the locked state to the non-locked state, an output for driving the actuator (motor) of the operating mechanism 8, and for power failure countermeasures There is an output for energizing the solenoid. In an embodiment in which the latch is not an electric latch but a latch operation detection switch is provided, output to the electric latch is unnecessary.

As will be described later, the operating mechanism 8 further includes an element (second guide block 84) that is fixed in an energized state and movable in a non-energized state, and the push-out unit 7 includes the element (second guide block). 84) is in the fixed state, the operation mechanism 8 enables operation from the storage posture to the protruding posture and from the protruding posture to the storage posture. In a more specific example, the operating mechanism 8 has a holding solenoid that holds the movement restricting state of the element (second guide block 84), and is operating during the operation of the door opening assist device, that is, to the pushing portion 7. During the opening output to the closing output, the holding solenoid is in an ON state. When the element (second guide block 84) becomes movable, the push-out portion 7 in the projecting posture is configured to return to the storage posture by the closing force of the door closer 6, and therefore the push-out portion 7 is brought into the projecting posture. When a power failure occurs at a certain time (non-energized state), the element (second guide block 84) becomes movable, and the door body 5 is automatically rotated in the closing direction by the door closer 6 to be fully closed. Become.

The controller of the door opening assist device includes first determination means for determining that the dead bolt 56 has been unlocked from the locked state. The door system includes means for detecting that the deadbolt 56 has been unlocked from the locked state, and the first determining means detects the unlocking of the deadbolt by the detecting means. Based on this, it is determined that the dead bolt has changed from the locked state to the unlocked state. The strikes 31 and 32 are switch strikes provided with a strike operation detection switch that detects the operation of a dead bolt and outputs it as a locking / unlocking signal. The strike operation detection switch turns off the locked state in which the dead bolt 56 protrudes and locks on the strikes 31 and 32, and turns on the unlocked state in which the dead bolt 56 is released from the strikes 31 and 32. As described above, the strike operation detection switch detects that the dead bolt 56 has been unlocked from the locked state.

The control unit of the door opening assist device further includes second determination means for determining that the latch 55 is released from the locked state and is in the unlocked state. When the latch 55 is an electric latch, the second determination means determines that the latch is in an unlocked state based on an output signal when the release signal is output to the latch 55 and the energized state is established. Can do. One end of a wiring 551 extending inside the outer tube 550 disposed inside the door body 5 is electrically connected to the electric latch, and the other end of the wiring 551 is connected via an energizing pivot composed of the pivot hinge 40. Are electrically connected to the control unit. Further, when the door system includes means for detecting that the latch is released from the locked state and is in the unlocked state, the second determination unit is configured to release the latch by the detecting unit. Based on the detection of the stopped state, it is determined that the latch is released from the locked state and is in the unlocked state. For example, when the latch 55 is a latch that is mechanically locked, a latch operation detection switch that detects the movement of the latch is provided, and the latch operation detection switch detects that the latch has become unlocked. To do. The detection signal in the non-locking state can be transmitted to the control unit with a configuration similar to the outer tube 550 and the wiring 551.

For example, when a person in the room opens the opening from the closed state of the opening, the protruding dead bolt 56 is immersed in the door end side end surface 52 by the turning operation of the knob 56A from the indoor side, and the door body. The unlocked state of 5 is unlocked. At this time, the strike operation detection switch is turned ON, and it is detected that the dead bolt 56 has been unlocked from the locked state. When the strike operation detection switch is turned on, a detection signal is transmitted to the control unit through the wirings 310 and 320. The control unit determines that the dead bolt 56 has been unlocked by receiving detection signals from both the wirings 310 and 320, and the holding solenoid is energized so that the push-out unit can be pushed out by the operating mechanism. It becomes a state. In addition, a release signal is transmitted to the electric latch, the electric latch is energized, and the electric latch is unlocked. The control unit determines that the electric latch is in an unlocked state based on the output of the release signal to the electric latch.

When the control unit determines that the dead bolt 56 is in the unlocked state and the latch 55 is in the unlocked state, the control unit transmits an operation signal to the motor 81 of the operation mechanism 8 to perform a predetermined time (for example, 3 seconds). An opening output is performed to cause the pushing portion 7 to protrude, and the door body is initially opened. In one aspect, the generated assist force is 160 N, and the door is opened 80 mm so that the gap is opened by about 30 mm to sufficiently release the negative pressure.

In one aspect, the door opening assist device detects a fully closed switch that detects a state in which the pushing portion 7 is in the stowed position (fully closed state), and a state in which the pushing portion 7 is in the most protruding position (fully opened state). And a fully open switch. When the door opening assist device that opens from the fully closed state is in the fully opened state, the fully open switch is activated to stop driving by the motor 81. When the door opening assist device that performs the closing operation from the fully open state becomes the fully closed state, the fully closed switch is activated and the drive by the motor 81 is stopped. The fully-closed switch and the fully-open switch can be configured using a sensor that detects the position of the component of the operating mechanism 8 or a sensor that detects the rotation speed of the motor 81. For example, in the embodiment described later, the fully closed state and the fully open state can be detected by detecting the position of the first guide block 83.

In one aspect, the door opening assist device includes a door opening detection switch. The door opening detection switch is a switch that detects that the door body 5 is opened by the door opening assist device, and can be constituted by, for example, a micro switch provided in the pushing portion 7. The door open detection switch is ON when the pushing portion 7 is pressing the door body 5, and is OFF when the pressing state is released. In one aspect, when the door opening detection switch changes from ON to OFF after the opening output starts, the closing output is performed for 3 seconds. For example, when the door 5 is opened manually after the opening output is started, the pushing portion 7 and the door 5 are separated, the pressing state is released, and the door opening detection switch is turned from ON to OFF. Since it changes, the closing output for 3 seconds is performed.

When the dead bolt 56 is already in the unlocked state in the opening closed state, in one aspect, the strike operation detection switch is turned on by unlocking the dead bolt 56 after the dead bolt 56 is in the locked state. Alternatively, a push button switch for manual operation may be provided separately, and an operation signal may be transmitted to the control unit by the push button switch.

In addition, when the latch 55 is immersed by operating the handle 54 without using the electric latch to make the latch non-locked, the strike operation detection switch is turned ON and the latch operation detection switch is turned ON. In this case, an operation signal is transmitted from the control unit to the operation mechanism 8, and the door opening assist device operates.

The opening operation of the door opening assist device from the fully closed state will be described. When the door opening assist device is in the fully closed state, the door open detection SW is OFF, the fully closed SW is ON, and the solenoid is OFF. The motor 81 of the operating mechanism of the door opening assist device is stopped. The electric latch is in the locked state. The dead bolt 56 is in a locked state, and the strike operation detection switch (switch strike) is OFF. When the dead bolt 56 is unlocked, the strike operation detection switch is turned on, the electric latch is turned on, and the solenoid is turned on. When both the strike operation detection switch and the electric latch are turned on, an open output (open timer ON: 3 seconds) is performed. When 3 seconds have elapsed after the open timer is activated, or when the fully open switch is turned ON, the open output is turned OFF, the motor 81 is stopped, and the fully open state is entered. Also, after 3 seconds have passed since the open timer is turned on (fully open state), the open maintenance timer is turned on for 3 seconds. If the door open detection SW is turned from ON to OFF during the opening operation, the operation moves to the closing operation. If a power failure occurs during the opening operation, the holding solenoid is turned off (non-energized state).

The closing operation from the fully open state of the door opening assist device will be described. A condition for starting the closing output of the closing operation is either “after 3 seconds elapse of the opening maintenance timer ON” or “the door opening detection SW is turned ON → OFF”. When any one of the conditions is satisfied, the closed output from the control unit is turned ON, and the closed output (closed timer ON: 3 seconds) is performed. When 3 seconds have elapsed after the closing timer is activated, or when the fully closed switch is turned ON, the closing output is turned OFF, the motor 81 is stopped, and the fully closed state is entered.

When a power failure occurs during operation, the holding solenoid of the door opening assist device is de-energized, and the element whose movement is restricted by the holding solenoid becomes movable. Therefore, the pushing portion 7 is closed by the closing force of the door closer. Moves and the door 5 closes.

One embodiment of the configuration of the door opening assist device will be described in detail with reference to FIGS. 5 to 8 are diagrams for explaining the configuration of the door opening assist device, and it should be noted that the configuration of the door device does not match that of FIGS. 1 and 2. The pushing portion 7 is composed of a first arm 70 and a second arm 71 whose ends are pivotably connected to each other, and a contact portion 72 is provided at a connecting portion between the first arm 70 and the second arm 71. is there. In one preferable aspect, the contact portion 72 is a rotating roller provided at a connecting portion between the first arm and the second arm.

The operating mechanism 8 includes a feed screw shaft 80 extending in the width direction of the door body 5 along the indoor side surface portion 50 of the door body 5 when the opening is closed, a motor 81 for rotating the feed screw shaft 80, and a feed screw. A guide shaft 82 extending in parallel with the shaft 80, a first guide block 83 that moves on the feed screw shaft 80 in conjunction with the rotation of the feed screw shaft 80, and a second guide provided on the guide shaft 82 Block 84. When the door opening assist device is operated, the first guide block 83 is a movable block, and the second guide block 84 is a fixed block.

The rotation end 700 of the first arm 70 is rotatably connected to the first guide block 83, and in conjunction with the reciprocation of the first guide block 83 along the length direction of the feed screw shaft 80, A rotating end 700 of one arm 70 reciprocates in the length direction (opening width direction) of the feed screw shaft 80. The first guide block 83 is formed with an insertion portion for the guide shaft 82, but the insertion portion may be a guide hole for guiding the guide shaft 82, or a space for simply inserting the guide shaft 82.

The rotation end 710 of the second arm 71 is rotatably connected to the second guide block 84. Electric power is supplied to the motor 81 from a commercial power source. When energized (when the commercial power is valid), the movement of the second guide block 84 is restricted, and the rotation end 710 of the second arm 71 is fixed so that the movement of the guide shaft 82 in the length direction is restricted. It is the end.

More specifically, the movement of the second guide block 84 in the opening width direction is restricted by the movement restricting means 9, and the movement restricting means 9 restricts the movement of the second guide block 84 when energized, The movement restriction of the two guide blocks 84 is released and the movement of the second guide block 84 is allowed. In one aspect, the movement restricting means 9 includes an engaging means 90 that engages with the second guide block 84 and restricts the movement of the second guide block 84, and a solenoid 91 that releases the engaging state of the engaging means 90. And. The configuration of the movement restricting means 9 will be described more specifically.

In the embodiment of FIG. 8, the locking means 90 is a rotating piece and is urged in the direction of locking with the second guide block 84. The protruding pin 910 of the solenoid 91 is retracted by pulling the solenoid 91 when energized, and the locking means 90 is locked to the second guide block 84 to restrict movement. At the time of power failure, the solenoid 91 is not pulled, the protruding pin 910 is protruded by the biasing means, the locking means 90 is rotated to release the locking state, and the second guide block 84 is moved along the guide shaft 82. Allow.

The upper diagram of FIG. 6 shows a state in which the opening is closed. The first arm 70 and the second arm 71 are in a slightly protruding “<”-shaped standby posture (storage posture), and the contact portion 72 is a door. It is in contact with the indoor side surface portion 50 (contacted portion) of the body 5. When the motor 81 rotates in the first direction from this state, the feed screw shaft 80 rotates in the first direction, the first guide block 83 moves along the feed screw shaft 80 to the door end side, and the first arm 70. The rotation end 700 of the first arm 70 moves to the door end side, the interval between the rotation end 700 of the first arm 70 and the rotation end 710 of the second arm 71 is narrowed, and the contact portion 72 protrudes. .

As is apparent from the lower diagram of FIG. 6, the pushing portion 7 causes the corner C on the indoor side of the door end side end surface 52 of the door body 5 to match the outdoor outer appearance surface 300 and the outdoor outer appearance surface of the door side vertical frame 3. It is pushed out from the corner portion 301 (outside corner portion of the finding surface) at least slightly (for example, at least 2 to 3 cm) to a position away from the outside of the chamber. By doing so, a gap is formed between the indoor side corner C of the door end side end face 52 of the door body 5 and the outdoor side corner of the door end side vertical frame 3 so as to communicate indoors and outdoors.

After the door opening assist device operates and pushes out the door body 5, the motor 81 is controlled to rotate in the second direction opposite to the first direction, and the feed screw shaft 80 rotates in the second direction. Then, the first guide block 83 moves along the feed screw shaft 80 toward the door butt side, the rotation end 700 of the first arm 70 moves to the door butt side, and the first arm 70 rotates. The distance between the moving end portion 700 and the rotating end portion 710 of the second arm 71 increases, and the contact portion 72 retracts to return to the original standby posture.

When a power failure occurs when the door opening assist device is activated and pushes out the door body 5, as shown in FIG. 7, the movement of the second guide block 84 becomes free by releasing the movement restricting means 9, The contact portion 72 is pushed in by the closing force of the door closer 6 to return to the original standby posture.

The operation of the door opening assist device during normal operation will be described. When the control unit determines that the dead bolt has been unlocked, the solenoid 91 is energized, and the locking means 90 is locked to the second guide block 84 to restrict movement. When the movement of the second guide block 84 is restricted and the control unit determines that the dead bolt is in the unlocked state and the latch is in the unlocked state, the control unit transmits an operation signal to the motor of the operation mechanism. Thus, the motor 81 is rotationally driven in the first direction while the movement of the second guide block 84 is restricted. In conjunction with the rotational drive of the motor 81, the first guide block 83 is drawn toward the door end side by the linear motion mechanism (feed screw mechanism using the feed screw shaft 80) connected to the motor 81, and the first guide block 83. The pivot end 700 of the first arm 70 connected to the second arm 71 moves toward the pivot end 710 of the second arm 71. As a result, the first arm and the second arm bend into a projecting posture, and the door end side of the door body 5 is pushed out to the outdoor side by pushing out when the abutting portion 72 abutting against the abutted portion is projected.

A case where a power failure occurs during the operation of the door opening assist device will be described. When the power supply to the solenoid 91 which is the movement restricting means 9 of the second guide block 84 is cut off, the movement restricting means 9 is released and the movement of the second guide block 84 on the guide shaft 82 is allowed. The movement of the second guide block 84 to which the rotation end 710 of the second arm 71 is connected is free, so that the door body 5 is automatically pushed while pushing the pushing portion 7 in the projecting position by the closing force of the door closer 6. Close to. Thus, when the power source of the operating mechanism is a commercial power source, even if a power failure occurs when the push-out part protrudes, the fixed end movement restriction is released and the fixed end moves freely at the time of a power failure. The door body can be automatically closed while pushing the push-out portion in the protruding posture using a closing force of a door closer or the like. Therefore, the door body is left open, and there is no problem in terms of crime prevention and fire fighting. After the commercial power supply is restored, the first guide block 83 and the second guide block 84 are moved to their original initial positions to obtain a standby posture. When the solenoid 91 is always operated at the time of energization, the solenoid 91 is operated and the locking means 90 is locked to the second guide block 84.

In the illustrated embodiment, in the door opening assist device, the pushing portion includes a first arm having a first rotation end and a second rotation end, and a first arm having a first rotation end and a second rotation end. The first rotation ends of the first arm and the second arm are rotatably connected to each other, and the contact portion is provided at a connection portion between the first rotation ends, One of the two second rotation ends of the first arm and the second arm is a movable end movable in the opening width direction, and the other second rotation end is restricted from moving in the opening width direction. And the operating mechanism is configured to project the abutting portion by moving the movable end toward the fixed end, and the fixed end is configured to restrict movement. The movement in the opening width direction is regulated by the means, and the movement regulating means regulates the movement of the fixed end during energization, Said releasing the movement regulation of the fixed end is configured to permit movement of said fixed end, but the configuration of the extrusion unit and actuating mechanism is not limited to the illustrated embodiment will be understood to those skilled in the art.

3 Door side vertical frame 30 Strike for latch 31 Strike for dead bolt 32 Strike for dead bolt 5 Door body 55 Latch 56 Dead bolt 6 Door closer 7 Extruding part 8 Actuating mechanism

Claims (1)

A door system comprising a door body that opens and closes an opening formed by a door frame, and a door opening assist device provided on the door frame,
The door opening assist device is
An extruding part that pushes the door end side of the door body to the outdoor side when the door body in the closed state of the opening is opened, and performs initial opening of the door body;
An actuating mechanism for actuating the extruding part;
A control unit for controlling the operating mechanism;
With
The door body is provided with a latch and a dead bolt,
The door frame is provided with a strike for latch and strike for dead bolt,
The control unit determines that the dead bolt has been unlocked from the locked state and has been unlocked, and that the latch has been released from the locked state and has been unlocked. a second determination means for determining comprises a dead bolt becomes unlocked, and row physician the initial opening of the door body by operating the extrusion unit by the actuation mechanism when the latch becomes unlatched state ,
The operating mechanism includes an element that is fixed in an energized state and movable in a non-energized state,
When the element is in a fixed state, the pushing portion can be operated from the storage posture to the protruding posture and from the protruding posture to the storage posture by the operating mechanism.
When the element becomes movable, the door body is configured to be fully closed by the closing force of the door closer,
When a power failure occurs when the extrusion part is in the protruding posture, the element becomes movable, and the door body is automatically fully closed.
Door system.

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