JP5435933B2 - Door opening support device - Google Patents

Description

The present invention relates to a door opening support device that assists in opening a door body when the door body is in an open state.

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.

Patent Documents 1 and 2 describe devices that reduce the opening force at the initial opening of the door body. These devices all use an opening support mechanism that operates in conjunction with the operation of the latch, and slightly separates the door end side of the door body from the airtight member on the opening frame side at the initial opening of the door body. Only.

Although the inventors of the present application have experimented, it depends on the force applied to the door body in the closed state of the opening, but in the extent that the door side of the door body is simply separated from the airtight member, the opening force of the door body is It was found that the door that was opened slightly returned to the closed state of the opening immediately due to the pressure difference between the inside and outside of the room.
Patent No. 4034216 Japanese Patent No. 4177283

An object of the present invention is to solve the above-described problems of the conventional door opening support device.

The technical means adopted by the present invention in order to achieve such a problem are as follows:
An extrusion 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;
An actuation mechanism for actuating the push-out portion,
The pushing portion and the operating mechanism are provided on either the opening frame side or the door body side, and the pushing portion is provided on either the door body side or the opening frame side when the opening portion is closed and the pushing portion is operated. A contact portion that comes into contact with the contacted portion, and the contact portion protrudes when the push-out portion is actuated to push the door end side of the door body outward.
In the closed state of the opening, the door end side end surface of the door body is in close proximity to the expected surface of the door end side vertical frame,
The push-out portion is operated by the operating mechanism until the indoor corner portion of the door end side end surface of the door body is pushed further out of the outdoor corner portion of the prospective surface of the door tip side vertical frame. It is a door opening support device in which a gap communicating between the interior and the exterior is formed between the indoor side corner of the door end side end surface and the outdoor side corner of the door end side vertical frame.

Further , the pushing portion has a first arm having a first rotation end and a second rotation end, and a second 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 second rotation end 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 movable in the opening width direction. Regulated fixed end,
The operating mechanism causes the contact portion to protrude by moving the movable end toward the fixed end.

In one aspect, the operating mechanism is electrically driven by energization from a power source,
The fixed end is restricted from moving in the opening width direction by movement restriction means,
The movement restricting means is configured to restrict movement of the fixed end when energized, and to release movement restriction of the fixed end and allow movement of the fixed end during a power failure.

In the present invention, the door opening support device assists the opening force necessary for opening the door to push the door body to the outdoor side against the load applied to the door opening due to the atmospheric pressure or the like inside and outside, and the door end of the door body Opening the door body is smaller by providing a sufficient air flow by forming a gap communicating between the interior and the exterior between the interior corner of the side end face and the exterior corner of the door-end vertical frame. It can be done with force.

According to the second aspect of the present invention, although the extruded portion is simply configured from the first arm and the second arm, a large projecting dimension of the extruded portion can be secured, and the door end side end surface of the door body A gap that communicates between the interior and the exterior is satisfactorily formed between the interior corner of the door and the exterior corner of the door-end vertical frame. More specifically, since the moving direction (opening width direction) of the rotation end of the pushing portion and the pushing direction are substantially orthogonal, the first arm and the second arm without securing a large space in the indoor and outdoor directions. By extending in the opening width direction, it is possible to ensure a large protruding dimension of the extruded portion. As the operation mechanism, a mechanism (such as a linear motion mechanism such as a rack and pinion or a feed screw mechanism) that linearly reciprocates one rotating end of the arm can be widely used.

According to the third aspect of the present invention, in the case where 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 canceled and the fixed end is moved when the power outage occurs. Since it becomes free, the door body can be automatically closed while pushing the pushing portion in the projecting posture by using the closing force of the 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.

Embodiments of the present invention will be described with reference to the drawings. 1 and 3 are both front views of a door device equipped with a door opening support device according to the present invention as viewed from the indoor side. 2 and 4 are partial plan views of the door side of the door device provided with the door opening support device shown in FIGS. 1 and 3, respectively. The upper diagram is when the opening is closed (switch OFF), and the lower diagram is the door. The opening support device is activated (switch ON) and the door body is pushed out.

The door device has an opening 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 a front view vertical rectangular shape that opens and closes the opening frame. And the door body 5. 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 rotatably attached to the door bottom side vertical frame 4 by a hinge (shown by 40 in FIG. 6 according to another embodiment described later) at one end in the width direction (door bottom side). In the fully closed state of the opening, the both ends 52 and 53 in the width direction are closed between the left and right vertical frames 3 and 4.

In conjunction with the operation of the handle 54, a latch (not shown) protrudes and protrudes from the door end side end surface 52. When the opening is closed, the protruding latch is a latch receiver (not shown) on the door side vertical frame 3 side. The door body 5 is restricted from being locked. When the protruding latch is immersed in the door end side end surface 52, the opening restriction of the door body 5 is released, and the door body 5 can be rotated. When opening the opening from the closed state, the latch is inserted by operating the handle 54, and the door 5 is pushed out to the outdoor side through a hinge with the door butt side as the base end. Rotate from closed position to open position.

Between the upper frame 1 of the opening 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 can be freely released by releasing the handle 54. Then, the door body 5 in the open posture is automatically rotated to the closed posture by the door closer 6. 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 support device is provided on the door end side of the door closer 6. The door opening support device includes an extruding portion 7 for extruding the door body 5 from the closed posture to the outdoor side, and an operating mechanism 8 for projecting the extruding portion 7. The pushing portion 7 and the operating mechanism 8 which are components of the door opening support device are provided on either the opening frame side or the door body 5 side. In one aspect, the operating mechanism 8 of the door opening support device is accommodated in the casing 8A and attached to the opening frame or the door body 5 via the casing 8A.

In the mode shown in FIGS. 1 and 2, the pushing portion 7 and the operating mechanism 8 of the door opening support device are provided on the door body 5. In the mode shown in FIGS. 3 and 4, the pushing portion 7 and the operating mechanism 8 of the door opening support device are provided in the opening frame. Moreover, when providing the extrusion part 7 and the action | operation mechanism 8 in the opening frame side, in a preferable aspect, it is provided in the upper part of the upper frame 1 of the opening frame, and / or the upper part of the door-end side vertical frame 3. .

The pushing portion 7 includes a first arm 70 and a second arm 71 that are pivotally connected to each other at the rotating ends. A contact portion 72 is provided at a connecting portion between the first arm and the second arm. 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 other rotating end 700 of the first arm 70 is rotatably connected to the operating mechanism 8, and the other rotating end 710 of the second arm 71 is a door in a state where movement in the opening width direction is restricted. It is rotatably connected to the body 5 or the opening frame. The other end 700 of the first arm 70 moves so as to approach the other end 710 of the second arm 71, and the other end 700 of the first arm 70 and the other end 710 of the second arm 71 are moved. When the distance between the first arm 70 and the second arm 71 decreases, the connecting portion, that is, the abutting portion 72 protrudes.

The operating mechanism 8 meshes with the rack 80 and a rack 80 extending in the opening width direction (width direction of the door body 5 when the opening is closed) along the indoor side surface portion 50 of the door 5 when the opening is closed. A pinion 81, a motor 82 for rotating the pinion 81, a transmission gear mechanism 83 provided between the motor shaft of the motor 82 and the pinion 81, and a cartridge type battery (not shown) as a power source of the motor 82. I have.

The other end portion 700 of the first arm 70 is rotatably connected to the door end side end portion of the rack 80, and the rack 80 along the opening width direction (the width direction of the door body 5 when the opening portion is closed). The other end 700 of the first arm 70 reciprocates in conjunction with the reciprocal movement of the first arm 70. In the aspect of FIG. 2, the other end 710 of the second arm 71 is connected to the door end side of the indoor side surface portion 50 of the door body 5 in a state where movement in the width direction of the door body 5 is restricted. In the aspect of FIG. 4, the door frame 5 is connected to the prospective surface (second prospective surface 31) of the door-end side vertical frame 3 in a state where movement in the width direction of the door body 5 is restricted.

When the motor 82 rotates in the first direction, the pinion 81 rotates in the first direction, the rack 80 moves toward the door end side of the door body 5, and the other end portion 700 of the first arm 70 moves to the door end. The distance between the other end portion 700 of the first arm 70 and the other end portion 710 of the second arm 71 is narrowed, and the contact portion 72 protrudes. When the motor 82 rotates in the second direction opposite to the first direction, the pinion 81 rotates in the second direction, the rack 80 moves toward the door bottom side of the door body 5, and the other of the first arms 70. From the posture in which the end portion 700 of the first arm 70 moves to the door butt side, the interval between the other end portion 700 of the first arm 70 and the other end portion 710 of the second arm 71 increases, and the contact portion 72 protrudes. Retract.

At least the indoor side surface portion 50 of the door body 5 is provided with a switch 55 for driving the motor in the vicinity of the handle 54. More specifically, when the door body 5 is opened, the handle 54 is operated. When the latching state by the latch is released, the switch 55 is pressed to be turned on, so that the operation signal is transmitted to the operation mechanism 8 wirelessly (for example, by infrared rays) or by wire. In one aspect, the switch 55 can be pressed when the handle 54 is operated to prevent the door opening assist device from operating when the latch is in the locked state. Alternatively, the switch may be automatically turned on in conjunction with the push-pull lock release operation (for example, the push operation of the handle) to transmit an operation signal to the motor.

Due to the operation of the operation mechanism 8 (drive of the motor 82 based on the operation signal), the push-out portion 7 protrudes, and the abutment portion 72 of the push-out portion 7 is brought into contact with the upper frame 1 or the door body 5 73A, 73B. The door body 5 is pushed out in the opening direction (outside of the room) by the reaction or extrusion, and an auxiliary force is applied to the resistance generated by the pressure difference. In one aspect, when the rack 80 moves to the door end side and the pinion 81 comes to the door bottom side end of the rack 80, a reverse current flows through the motor 82, and the pinion 81 rotates in the reverse direction and rotates in the second direction. As a result, the rack 80 moves to the door butt side, the other end 700 of the first arm 70 moves to the door butt side, and the protruding contact portion 72 retracts to the original standby posture. The configuration for returning the actuating mechanism 8 once activated to the original standby posture is a matter that can be appropriately designed by those skilled in the art. For example, the timing for reversely rotating the motor 82 can be appropriately set by the number of rotations of the motor, a timer, and the like.

The operation of the door opening support device will be described more specifically with reference to FIGS. 2 is a plan view showing a door-end side portion of the door device in a state where the opening is closed. The pushing portion 7 and the operating mechanism 8 of the door opening support device are provided in an upper part of the indoor side surface portion 50 of the door body 5. The prospective surface of the door end side vertical frame 3 is formed in a stepped shape from the first prospective surface 30 and the second prospective surface 31, the first prospective surface 30 is the outdoor side, and the second prospective surface 31 is the indoor side. Is located. The second prospective surface 31 is shifted to the door bottom side with respect to the first prospective surface 30 to form a stepped portion. An airtight member 32 is fitted in a recess formed in the stepped portion of the first prospecting surface 30 and the second expectation surface 31. When the opening is closed, the door end side end surface 52 of the door body 5 is in close proximity to the first prospective surface 30, and the corner C (the door end side end surface 52 and the indoor side surface portion of the door body 5 inside the door end side end surface 52). 50 is in contact with the airtight member 32.

The rotation end 700 of the first arm 70 is rotatably connected to the door end side end of the rack 80, and the rotation end 710 of the second arm 71 is on the door end side of the surface portion 50 of the door body 5. A fixed mounting portion 500 is rotatably connected. The rack 80 of the actuating mechanism 8 is in a standby position retracted to the side away from the door tip side of the door body 5 (door bottom side), and the first arm 70 and the second arm 71 project the contact portion 72. The contact portion (for example, the rotating roller) 72 is a contacted portion that is suspended from the upper frame 1 side, and has a “<” shape that slightly protrudes in the direction (an angle slightly smaller than 180 degrees). 73A (for example, an angle member formed in an L shape from a horizontal piece provided on the lower surface of the upper frame 1 and a vertical piece hanging from the horizontal piece). As shown in FIG. 2, the contacted portion 73A only needs to extend over at least the movement range of the contact portion 72 (sliding range or rolling range in the case of a rotating roller). As shown, the contacted portion 73A may be formed from a larger member including the moving range.

2, when the operation mechanism 8 receives the operation signal from the switch 55, the motor 82 rotates in the first direction, the pinion 81 rotates in the first direction, and the rack 80 is moved to the door end side. Move. In conjunction with the movement of the rack 80 toward the door end side, while the contact portion (rotating roller) 72 is in contact with the contacted portion 73A, while sliding on the contacted portion 73A toward the door end side. As a result, the first arm 70 and the second arm 71 are bent, and at this time, the angle formed by the first arm 70 and the second arm 71 becomes a sharper angle, and a protruding posture is formed. The door tip side of the door body 5 is pushed out to the outdoor side in the opening direction by the reaction at the time of the protrusion of the contact portion 72 that comes into contact.

What is important here is that the corner C on the indoor side of the door end side end surface 52 of the door body 5 is made to extend from the first prospecting surface 30 and the first finding surface 33 of the door side vertical frame 3 by the pushing portion 7. It is pushed out from the corner | angular part (outdoor outer corner part of a finding surface) to the position spaced apart to the outdoor side at least slightly (for example, at least 2-3 mm). By doing so, a gap is formed between the indoor side corner C of the door end side end surface 52 of the door body 5 and the outdoor side corner of the door side vertical frame so as to communicate indoors and outdoors. Therefore, the protrusion dimension of the extrusion part 7 from an opening part closed state pushes the door tip side of the door body 5 to an outdoor side, and the corner | angular part C inside the door tip side end surface 50 is the door tip side vertical. The dimension is such that it is rotated from the corner of the first look-up surface 30 and the first finding surface 33 of the frame 3 to a position at least slightly separated from the outdoor side. Here, the protrusion dimension of the extrusion portion 7 is a direction away from a virtual line connecting the other end portion 700 of the first arm 70 and the other end portion 710 of the second arm 71 (typically a virtual straight line). Dimension in a direction perpendicular to the direction).

In FIG. 4, the pushing portion 7 and the operating mechanism 8 of the door opening support device are attached to the opening frame side. More specifically, the door opening support device is attached so as to hang down from the upper frame 1 so that the pushing portion 7 faces the indoor side surface portion 50 of the door body 5. The rotation end portion 700 of the first arm 70 is rotatably connected to the door end side end portion of the rack 80, and the rotation end portion 710 of the second arm 71 is the second expected surface of the door end side vertical frame 3. It is rotatably connected to a mounting portion 310 fixed to 31.

4 is a plan view showing a door-end side portion of the door device in a state where the opening is closed, and the rack 80 of the operating mechanism is retracted to the side (door bottom side) away from the door-end side of the door body 5. FIG. The first arm 70 and the second arm 71 are in a “<”-shaped standby posture extending at an angle of less than 180 degrees, and the contact portion 72 (for example, a rotating roller) It is in contact with the contacted portion 73 </ b> B provided on the indoor side surface portion 50 of the door body 5. In one aspect, the contacted portion 73B is a reinforcing plate that is affixed to the indoor side surface portion 50 (it is only necessary to extend over the movement range of the contact portion 72). It may be a part of the indoor side surface portion 50. Further, since the abutting portion 72 moves while abutting against the abutted portion 73B (a part of the indoor side surface portion 50), it is locally located at one point of the abutted portion 73B (a part of the indoor side surface portion 50). Therefore, it is possible to prevent deformation of the indoor side surface portion 50 of the door body 5 and the like as much as possible.

4, when the operation mechanism 8 receives an operation signal from the switch 55, the motor 82 rotates in the first direction, the pinion 81 rotates in the first direction, and the rack 80 is opened. Move to the front. In conjunction with the movement of the rack 80 toward the door end side, the sliding portion 72B moves while sliding toward the door end side with the contact portion (rotating roller) 72 in contact with the contacted portion. As a result, the first arm 70 and the second arm 71 are bent, and at this time, the angle formed by the first arm 70 and the second arm 71 becomes a sharper angle so as to be in a protruding posture, and the first arm 70 and the second arm 71 are in contact with the contacted portion 73B. By pushing out when the contact portion 72 protrudes, the door end side of the door body 5 is pushed out to the outdoor side in the opening direction. As is clear from the lower diagram of FIG. 4, the corner 7 on the indoor side of the door end side end surface 52 of the door body 5 causes the first look-up surface 30 and the first finding surface of the door end side vertical frame 3 to be pushed by the pushing portion 7. It is pushed out from the corner part 33 (outdoor outer corner part of the finding surface) to a position separated at least slightly (for example, at least 2 to 3 mm) to the outdoor side. 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.

Still another embodiment will be described with reference to FIGS. About the same component, the same reference number is attached | subjected throughout the specification, and description as stated above can be used for description of the component which attached | subjected the same number.

FIG. 5: is the front view which looked at the door apparatus carrying the door opening assistance apparatus which concerns on this invention from the room inner side. 6, the upper diagram is a plan view of FIG. 5, and the lower diagram is an enlarged view of the upper part of FIG. Between the upper frame 1 of the opening frame of the door device and the upper end of the door body 5, a door closer 6 is provided on the door bottom side. In the upper part of the door device, a door opening support device is provided on the door end side of the door closer 6. The door opening support device includes an extruding portion 7 for extruding the door body 5 from the closed posture, and an operating mechanism 8 for projecting the extruding portion 7. In one aspect, the pushing portion 7 and the operating mechanism 8 that are components of the door opening support device are accommodated in a casing 8B having an opening that allows the pushing portion 7 to protrude, and the opening is opened through the casing 8B. It is attached to a frame or door body 5. 5 to 10, the pushing portion 7 and the operating mechanism 8 of the door opening support device are provided on the opening frame (upper frame 1), but the door opening support device can be provided on the door body 5 side. Will be understood by those skilled in the art.

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 actuating mechanism 8 includes a feed screw shaft (such as one using a ball screw, trapezoidal screw, or the like) 84 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 85 that rotates the feed screw shaft 84, a guide shaft 86 that extends parallel to the feed screw shaft 84, and a first guide that moves on the feed screw shaft 84 in conjunction with the rotation of the feed screw shaft 84. It comprises a block 87 and a second guide block 88 provided on the guide shaft 86. When the door opening assist device is operated, the first guide block 87 is a movable block, and the second guide block 88 is a fixed block.

The rotation end 700 of the first arm 70 is rotatably connected to the first guide block 87, and in conjunction with the reciprocation of the first guide block 87 along the length direction of the feed screw shaft 84, A rotating end 700 of one arm 70 reciprocates in the length direction (opening width direction) of the feed screw shaft 84. An insertion portion for the guide shaft 86 is formed in the first guide block 87, but the insertion portion may be a guide hole for guiding the guide shaft 86 or a space for simply inserting the guide shaft 86.

The rotation end 710 of the second arm 71 is rotatably connected to the second guide block 88. Electric power is supplied to the motor 85 from a commercial power source. When energized (when the commercial power is valid), the movement of the second guide block 88 is restricted, and the rotation end 710 of the second arm 71 is fixed so that the movement of the guide shaft 86 in the length direction is restricted. It is the end.

More specifically, the movement of the second guide block 88 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 88 when energized, and the second guide block 88 is activated during power failure. The movement restriction of the two guide blocks 88 is released and the movement of the second guide block 88 is allowed. In one aspect, the movement restricting means 9 includes a latch 90 that is locked to the second guide block 88 and restricts the movement of the second guide block 88, and a solenoid 91 that releases the latched state of the latch 90. ing. The configuration of the movement restricting means 9 will be described more specifically.

In the aspect of FIG. 10B, the latch 90 is a rotation latch and is urged in a direction to be engaged with the second guide block 88. The protruding pin 910 of the solenoid 91 is retracted by pulling the solenoid 91 when energized, and the latch 90 is locked to the second guide block 88 to restrict movement. At the time of a power failure, the solenoid 91 is not pulled, and the protruding pin 910 is protruded by the urging means to rotate the latch 90 to release the locked state, and the movement of the second guide block 88 along the guide shaft 86 is allowed. .

In the aspect of FIG. 10C, the latch 90 is a parallel movable latch and is biased in a direction away from the second guide block 88. The solenoid 91 is a rotary solenoid, and the solenoid 91 is provided with an elliptical cam 911. When energized, the cam 911 is in a posture in which the longitudinal direction is orthogonal to the guide shaft 86, and the latch 90 is pushed out by the cam 911 and locked to the second guide block 88 to restrict movement. At the time of a power failure, the cam 911 rotates to a posture in which the longitudinal direction is parallel to the guide shaft 86, the latch 90 is separated from the second guide block 88, and the movement of the second guide block 88 along the guide shaft 86 is allowed. The

The upper diagram in FIG. 7 shows the closed state of the opening. The first arm 70 and the second arm 71 are in a slightly protruding “<”-shaped standby posture, and the abutting portion 72 is in the interior of the door body 5. It is in contact with the side surface portion 50 (contacted portion). When the motor 85 rotates in the first direction from this state, the feed screw shaft 84 rotates in the first direction, the first guide block 87 moves along the feed screw shaft 84 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. 7, the corner 7 on the indoor side of the door end side end surface 52 of the door body 5 causes the first look-up surface 30 and the first finding surface of the door-end side vertical frame 3 by the pushing portion 7. It is pushed out from the corner part 33 (outdoor outer corner part of the finding surface) to a position separated at least slightly (for example, at least 2 to 3 mm) to the outdoor side. 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 support device is activated and pushes out the door body 5, the motor 85 is controlled to rotate in the second direction opposite to the first direction, and the feed screw shaft 84 rotates in the second direction. Then, the first guide block 87 moves toward the door butt side along the feed screw shaft 84, the rotation end portion 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.

If a power failure occurs when the door opening support device is activated and pushes out the door body 5, as shown in FIG. 8, the movement of the second guide block 88 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.

With reference to FIG. 9, the operation of the door opening support device at the normal time will be described. When an operation signal interlocked with the handle or the like of the door body 5 is input, the solenoid 91 is activated, and the latch 90 is locked to the second guide block 88 to restrict the movement. If the power consumption is not taken into consideration, the solenoid 91 may be always operated. In a state where the movement of the second guide block 88 is restricted (FIG. 9A), when the motor 85 is driven to rotate in the first direction based on the operation signal, a linear motion mechanism (feed screw shaft connected to the motor 85 is connected. The first guide block 87 is pulled toward the door end side by the feed screw mechanism using the reference numeral 84, and the rotation end 700 of the first arm 70 connected to the first guide block 87 is the rotation end of the second arm 71. It moves to the part 710 side (FIG. 9B). As a result, the first arm and the second arm bend into a protruding posture (FIG. 9C), and the door tip side of the door body 5 is pushed by the protrusion when the contact portion 72 that contacts the contacted portion protrudes. Extrude outside.

A case where a power failure occurs during the operation of the door opening support device will be described with reference to FIG. When the power supply to the solenoid 91 that is the movement restricting means 9 of the second guide block 88 is cut off, the movement restricting means 9 is released and the movement of the second guide block 88 on the guide shaft 86 is allowed. The movement of the second guide block 88 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 protruding posture by the closing force of the door closer 6. Close to. After the commercial power supply is restored, the first guide block 87 and the second guide block 88 are moved to their original initial positions to obtain a standby posture. When the solenoid 91 is always operated during energization, the solenoid 91 is operated and the latch 90 is locked to the second guide block 88.

The present invention can be used for an entrance door of an apartment or the like.

It is a room side front view of the door apparatus provided with the door opening assistance apparatus which concerns on this invention. It is the partial top view by the side of the door of the door device provided with the door opening assistance device concerning the present invention, the upper figure is at the time of opening closing (switch OFF), and the lower figure is the door opening assistance device operating (switch ON). The door body is pushed out. It is a room side front view of the door apparatus provided with the door opening assistance apparatus which concerns on this invention. It is a partial plan view of the door end side of the door device provided with the door opening support 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 support device is activated and the door body is pushed out. Show. It is a room side front view of the door apparatus provided with the door opening assistance apparatus which concerns on this invention. The upper diagram is a plan view of FIG. 5, and the lower diagram is an enlarged view of the upper portion of FIG. It is a partial plan view of the door end side of the door device provided with the door opening support 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 support device is activated and the door body is pushed out. Show. It is a figure which shows the state by 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. (A) It is a figure explaining the action | operation of the extrusion part by an action mechanism. (B) It is a figure explaining the action | operation of the extrusion part by an action mechanism. (C) It is a figure explaining the action | operation of the extrusion part by an action mechanism. (A) It is a figure which shows the state from which the movement regulation of the 2nd guide block was cancelled | released from the state of FIG. 9 (A). (B) It is a figure explaining the movement control means of the 2nd guide block. (C) It is a figure explaining the movement control means of the 2nd guide block. (D) It is a figure explaining the return to the state of FIG. 9 (A) from the state of FIG. 10 (A).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper frame 3 Door tip side vertical frame 30 1st look surface 31 2nd look surface 33 1st look surface 5 Door body 50 Indoor side part 52 Door end side end surface C Indoor side corner 6 of door end side end surface 6 Door closer 7 Pushing portion 70 First arm 71 Second arm 72 Contact portion 73A Contacted portion 73B Contacted portion 8 Actuating mechanism

Claims (2)

An extrusion 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;
An actuation mechanism for actuating the push-out portion,
The pushing portion and the operating mechanism are provided on either the opening frame side or the door body side, and the pushing portion is provided on either the door body side or the opening frame side when the opening portion is closed and the pushing portion is operated. A contact portion that comes into contact with the contacted portion, and the contact portion protrudes when the push-out portion is actuated to push the door end side of the door body outward.
The pushing portion includes a first arm having a first rotation end and a second rotation end, and a second 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 second rotation end 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 movable in the opening width direction. Regulated fixed end,
The operating mechanism is configured to project the contact portion by moving the movable end toward the fixed end,
In the closed state of the opening, the door end side end surface of the door body is in close proximity to the expected surface of the door end side vertical frame,
The push-out portion is operated by the operating mechanism until the indoor corner portion of the door end side end surface of the door body is pushed further out of the outdoor corner portion of the prospective surface of the door tip side vertical frame. A gap is formed between the indoor side corner of the door end side end face and the outdoor side corner of the door side vertical frame to communicate the interior and the exterior.
Door opening support device. The operating mechanism is electrically driven by energization from a power source,
The fixed end is restricted from moving in the opening width direction by movement restriction means,
The movement restricting means is configured to restrict the movement of the fixed end during energization, and to release the movement restriction of the fixed end during a power failure and allow the movement of the fixed end.
The door opening assistance apparatus of Claim 1 .

Images