JP5112750B2 - Electric folding door device - Google Patents

Description

The present invention relates to a folding door device that is opened electrically.

The folding door is structurally smaller in size than the hinged door, and can provide a wide effective opening. In addition, there is an advantage that a door pocket space like a sliding door is not required and the door is lightly opened and closed. Therefore, the folding door is suitable for use by wheelchair users. Further, it is more convenient if the door body can be automatically opened in the folding door and the sliding door. Actually, an automatic sliding door device that electrically drives the door body has already been implemented.

However, the door body of the folding door moves in a complicated manner compared to the sliding door, and it is difficult to electrically drive the door body of the folding door as compared to the sliding door. As one method, it is conceivable to open and close the door body by automatically rotating the suspension hinge of the door body constituting the folding door with a motor, but there is a problem that the automatic rotation mechanism of the suspension hinge is expensive. . In addition, even if the door is moved by applying a force in the opening width direction to the door body of the folding door using the motor used for the automatic sliding door in the fully closed state of the folding door, The door butt side end face of one door body and the door tip side end of the second door body are in a linear posture, and the two door bodies extending in a straight line are stretched and fully closed. The door body located at does not open. Further, Patent Documents 1 and 2 disclose electric drive mechanisms for folding doors, but both have complicated configurations.
JP 2000-356071 A JP 2003-239613 A

An object of the present invention is to electrically open a door body of a folding door device with a simple configuration. Another object of the present invention is to electrically open a door body of a folding door device using an automatic sliding door opening drive device.

The technical means employed by the present invention in order to achieve such a problem are the door-end side end portion of the first door (door-end-side door) suspended by a moving body that moves in the opening width direction, and the door-end. The second door body (door butt side door body) whose side is rotatably supported is connected to the door tip side end portion so as to be able to refract, and the movable body moves in the opening width direction toward the door butt side. Thus, the first door body and the second door body are bent and the opening is opened, and the opening (that is, the movement of the door body) is retracted from the retracted posture from the movement path of the door body. A pressing body having an operating posture protruding in the path), a means for driving the pressing body from the storage posture to the operating posture, a means for returning the pressing body from the operating posture to the storage posture, and the movable body as a door. Opening drive means for moving in the opening width direction toward the buttocks side, and opening the door body by the opening drive means. Sometimes, the pressing body is in an operating posture, and a force in a direction orthogonal to the opening width direction at a portion close to the bent portion of at least one of the first door body and the second door body in the fully closed state of the opening portion. This is an electric folding door device that promotes refraction of the door body. In one preferable aspect, the pressing body is a rotating pressing body that rotates from a retracted posture retracted above the opening to an operating posture protruding from the opening, and the pressing body driving means is the rotating pressing body. It is the rotation drive means which drives. In another aspect, the pressing body is a direct-acting pressing body that protrudes from a stowed position to an operating position, and the driving means is a direct-acting driving means that linearly drives the rotating pressing body. Moreover, in one preferable aspect, before the said opening drive means starts, a press body makes the force of the direction orthogonal to an opening width direction act on the site | part close | similar to the refractive part of at least one door body, and opens an opening part. The first door body and the second door body in the fully closed state are urged. In another aspect, the pressing body is in a direction orthogonal to the opening width direction at a portion near the refracting portion of at least one door body substantially simultaneously with the activation of the opening driving means or immediately after the activation of the opening driving means. The first door body and the second door body in the fully closed state of the opening are urged. Further, the “part close to the refractive part of the door” includes the refractive part itself. In the following description, the description will be mainly based on the “rotating pressing body” and the “pressing body that operates before activation of the opening drive means” which are preferable modes.

In one preferred mode, the means for rotationally driving the rotary pressing body from the storage position to the operating position is a rotary solenoid. When the opening signal is transmitted to the control unit in the fully closed state of the opening, the rotary solenoid is energized, and the rotary drive shaft of the rotary solenoid rotates a predetermined amount and is directly or indirectly connected to the rotary drive shaft. The rotating pressing body that is being rotated rotates and presses the door body. The rotation driving means of the rotation pressing body is not limited to the rotary solenoid, and a motor may be used as the rotation driving means. Further, it will be understood by those skilled in the art that a solenoid or a motor can be similarly employed as the driving means for the linearly-moving pressing body.

The driving means for the pressing body and the opening driving means for moving the moving body are controlled by the control means. Specifically, the control unit controls transmission of an activation signal to the opening driving unit and the pressing body driving unit based on an opening signal input in the fully closed state of the opening. In a more specific embodiment, before the opening driving means is activated, the pressing body driving means is driven to refract the first door body and the second door body in a plan view, and thereafter the opening driving means. Is controlled to start. As a method of delaying the activation signal to the opening driving means from the activation signal to the pressing body driving means, the activation signal is transmitted using a timer, or the driving of the pressing body driving means is detected and detected. It will be understood by those skilled in the art that means such as transmitting an activation signal can be employed. It will be understood by those skilled in the art that when the pressing body is operated substantially simultaneously with the activation of the opening drive means or immediately after the activation of the opening drive means, it can be similarly controlled by the control means.

In one preferable aspect, the return means is configured such that the pressing body in the operating posture is suspended by a moving body of the door-end side door body in which the pressing body moves in the opening width direction (for example, the door-end side is open). When suspended by a moving body that moves in the width direction, before coming into contact with the door end side part), that is, before the part passes through the part where the pressing body is provided, And return. In one aspect, the return means of the rotary pressing body includes a return spring. In the rotary drive means including a rotary solenoid, “energization interruption + return spring” is the return means. Further, as the returning means, a driving means for rotating the rotation pressing body in the direction opposite to the rotation by the rotation driving means may be used. It will be understood by those skilled in the art that a means similar to the return means of the rotary press body can be adopted as the return means of the linearly-moving press body.

In a more specific aspect, the door end side of the first door body is suspended by the movable body via the suspension shaft, and the first door body is suspended when the movable body moves in the opening width direction. It rotates through the shaft. In one aspect, the moving body includes a suspension roller, and moves along a guide rail extending in the opening width direction above the opening. In a more specific aspect, the opening driving means includes a motor and a winding transmission mechanism driven by the motor, and the moving body is connected to the portion of the winding body extending in the opening width direction. The moving body is moved in the opening width direction by moving the winding body in the opening width direction by the motor. In one aspect, the opening drive means also serves as an electric opening / closing mechanism by forward and reverse rotation of the motor. In another aspect, the fully opened door body is moved in the closing direction by an automatic closing mechanism different from the opening driving means.

Further, in a typical aspect, the door bottom side end portion of the first door body and the door tip side end portion of the second door body are connected so as to be able to be refracted via a hinge shaft, and the hinge shaft has a refracting portion. Forming. Therefore, the part (including the refracting part) near the refracting part of the door means the part (including the hinge) close to the hinge axis. Moreover, the part near the refracting part of the door body is at least a part closer to the refracting part side than the center in the width direction of the door body. In the first door body (door side door body), the door bottom of the door body surface portion. In a side part and a 2nd door body (door bottom side door body), it is a door tip side part of a door body surface part. The closer to the refracting portion (hinge axis), the more advantageous is the portion where the pressing body abuts and presses (the required force is smaller). The pressing body is located on one side of the door body surface portion and pivots or protrudes in the direction toward the other side of the door body surface portion (the direction in which the refracting portion is refracted and protrudes). Press to the other side. In a typical aspect, the refracting fulcrum (for example, the hinge shaft) is biased to one side in the thickness direction of the door body, and the pressing body has a surface portion (one side surface portion) on the refracting fulcrum side of the door body. The pressing is performed from the direction orthogonal to the opening width direction (that is, the direction perpendicular to the surface portion) toward the other side. In an embodiment to be described later, the pressing body presses the door bottom side surface portion of the first door body (door tip side door body), but the pressing body includes the door bottom side surface portion of the first door body and the second door body. Any one or both of the door side surface portions or the refracting portion (hinge) may be pressed. Typically, in the fully closed state of the opening, the first door body and the second door body extend in a straight line, and the door end side end surface of the first door body and the door of the second door body. The front end is in close proximity (including both contact and non-contact) or in abutment. When opening the opening, by operating the pressing body, a force in a direction perpendicular to the opening width direction is applied to the door body, so that the first door body and the second door body in a straight line have a square shape in plan view. Prompt to refract.

In the present invention, since the pressing body promotes the refraction of the first door body and the second door body in the fully closed state of the opening, the opening drive means applies a force in the opening width direction toward the door bottom side to the first door body. The two door bodies in the fully closed state are not stretched when the first door body is moved, and the two door bodies are smoothly refracted to open the opening while the first door body moves to the door butt side. Therefore, in the folding door device of the present invention, it is possible to employ an opening driving means that applies a force in the opening width direction to the door body. For example, the door body of the folding door device using the opening driving means or the opening / closing driving means of the automatic sliding door. Can be opened or closed.

In addition, in the case of adopting a rotating pressing body that rotates from the retracted attitude retracted above the opening to the operating attitude protruding from the opening, the rotating pressing body can be stored in a more space-saving manner. At the time of opening and closing, the rotary pressing body can be accommodated above the opening, and parts for attaching the pressing body are not exposed to the outside and the appearance is not impaired. Further, the returning means returns the pressing body in the operating posture to the storage posture before the pressing body comes into contact with the door side portion of the first door that moves in the opening width direction. The pressing body does not hinder the opening / closing operation of the door body.

Embodiments of the present invention will be described with reference to the drawings. First, the basic configuration of the folding door apparatus will be described. The folding door device includes two door bodies 1 and 2 that are connected so as to be able to be bent, and the door bodies 1 and 2 open and close the building opening. The building opening is formed as a space surrounded by a door frame composed of a door end side vertical frame 3, a door bottom side vertical frame 4 and an upper frame 5 and a lower surface 6. As will be described later, an electric opening / closing mechanism and an extrusion starting mechanism of the folding door device are housed in the space in the upper frame 5.

Both door bodies 1 and 2 have a front view shape, with the door body 1 positioned on the door end side and the door body 2 positioned on the door bottom side. That is, the door end side end portion of the door body 1 is the door end side as the whole folding door, and the door bottom side end portion of the door body 2 is the door bottom side as the entire folding door. The door end side end portion of the door body 1 and the door end side end portion of the door body 2 are connected to each other via a hinge 7 so as to be capable of being bent (rotatable). The shaft portion (hinge shaft) 70 of the hinge 7 is arranged so as to be biased in the thickness direction of the door bodies 1 and 2, and the door bodies 1 and 2 rotate around the shaft portion 70 as a rotation fulcrum (refractive fulcrum). When moving and bending, the door bottom side end portion of the door body 1 and the door tip side end portion of the door body 2 do not interfere with each other.

In the door bodies 1 and 2, the surface portion of the hinge 7 on the shaft portion 70 side is defined as the first surface portions 1A and 2A, and the surface portion of the hinge 7 opposite to the shaft portion 70 is defined as the second surface portions 1B and 2B. In one embodiment, the first surface portions 1A and 2A are on the outdoor side, and the second surface portions 1B and 2B are on the indoor side. It is formed by a corner portion formed by the first surface 1A of the door body 1 and the door bottom side end surface 1C of the door body 1, and the first surface 2A of the door body 2 and the door end side end surface 2C of the door body 2. The shaft part 70 of the hinge 7 is located between the corner part. Further, in the illustrated example, the leaf 71 of the hinge 7 is attached to the door end side end surface 1C of the door body 1 and the door end side end surface 2C of the door body 2, and the leaf 71 is externally attached when the opening is fully closed. Is invisible.

Rotating shafts 8A and 8B composed of pivot hinges are provided on the door-side portion of the door body 2, and the door body 2 can be rotated using the rotating shafts 8A and 8B as rotational fulcrums. . The rotation shafts 8A and 8B are located at the central portion of the door body 2 in the thickness direction. In the illustrated example, the base end (upper end) of the upper rotation shaft 8A of the door body 2 is supported by a bracket 80A provided on the upper frame 5, and the distal end (lower end) of the rotation shaft 8A is supported by the door body 2. It protrudes into the upper end of the door bottom side part, and the base end (lower end) of the lower rotation shaft 8B of the door body 2 is supported by a bracket 80B embedded in the lower surface, and the distal end (upper end) of the rotation shaft 8B. ) Protrudes into the lower end of the door bottom side portion of the door body 2.

A guide rail 9 extending in the opening width direction is provided above the opening, that is, inside the upper frame 5, and the moving body 10 provided on the door end side of the upper end of the door body 1 extends along the guide rail 9. It is supposed to move. More specifically, the moving body 10 includes a bracket 12 connected to the upper end of the door body 1 via a suspension shaft 11 (also a rotation shaft), and a suspension mounted rotatably on the bracket 12. A holding roller 13, and the suspension roller 13 moves along the guide rail 9. In the illustrated example, the widths of the door bodies 1 and 2 are the same, and the first door body 1 is suspended by a moving body 10 whose door end side moves in the opening width direction. , 2 are different from each other, it is understood by those skilled in the art that the portion where the first door body 1 is suspended by the moving body 10 is not limited to the door-end portion.

The moving body 10 is configured to move along the guide rail 9 by an electric opening / closing mechanism. The electric opening / closing mechanism includes a driven pulley 14 disposed above the door end side of the opening and a driving pulley 15 disposed above the door bottom side of the opening inside the upper frame 5. And a belt body 16 wound between the pulleys 14 and 15 and extending in the opening width direction, and a motor 17 for rotating the driving pulley 15. The upper portion of the moving body 10, that is, the upper end portion of the bracket 12 is connected to the lower portion 16A of the belt body 16 extending in the opening width direction, and the lower portion 16A of the lower portion 16A of the belt body 16 in the opening width direction. Along with the movement, the moving body 10, that is, the door body 1 moves in the opening width direction. Thus, the electric opening / closing mechanism applies a force in the opening width direction to the door body 1.

In the illustrated example, the winding transmission mechanism including the pulleys 14 and 15 and the belt body 16 wound around the pulleys 14 and 15 is shown. A mechanism may be used. In addition, it is easily understood by those skilled in the art that the mechanism for moving the moving body 10 is not limited to the mechanism using the wrapping transmission mechanism as long as a force in the opening width direction is applied to the door body 1.

The upper frame 5 above the opening is provided with an extrusion activation mechanism located above the door bottom side (refractive part side) of the door 1 in the fully closed state of the opening. The push-out activation mechanism includes a rotation pressing body 18 and a drive mechanism that drives the rotation pressing body 18 to rotate. Normally, the rotary pressing body 18 is in a retracted posture retracted into the upper frame 5 and does not protrude into the opening. At the time of operation, it rotates so as to project downward from the upper frame 5 to the opening, and comes into contact with and presses the upper part of the first face portion 1A of the door body 1 in the fully closed state on the door bottom side. It becomes the action | operation attitude | position which pushes the door bottom side of the body 1 in the direction which the door bodies 1 and 2 refract.

The drive mechanism of the rotary pressing body is built in a cylindrical casing 19, and the rotary drive shaft 20 protrudes to the outside. In the illustrated example, the rotation pressing body 18 is a plate piece including an inverted L-shaped portion 180 and a pressing portion 181 formed at the distal end of the inverted L-shaped portion 180, and the base end side of the inverted L-shaped portion 180 is It is connected to a rotary part 20A fixed to the rotary drive shaft 20 of the drive mechanism, and the pressing part 181 extends orthogonally to the inverted L-shaped piece. As shown in FIGS. 5A, 2, and 3, in the storage posture, the inverted L-shaped portion 180 of the rotary pressing body 18 is in a horizontal posture, and the pressing portion 181 is also in a horizontal posture, and the upper frame 5 It does not protrude from the bottom surface. In operation, the rotary pressing body 8 rotates downward from the posture of FIG. 5A, and contacts the first surface portion 1A of the door body 1 when rotated 90 degrees (see FIG. 1), and further the first surface portion. Press 1A to extrude. As shown in FIG. 5B, in the operating posture, the inverted L-shaped portion 180 of the rotary pressing body 18 is rotated 90 degrees or more from the stored posture. The rotation amount of the rotary pressing body 18 can be appropriately selected by those skilled in the art depending on the shape of the rotary pressing body 18, the storage posture, and the like.

A buffer member 181 </ b> A is affixed to the contact surface of the pressing portion 181 of the rotary pressing body 18. On the other hand, in the first surface portion 1A of the door body 1, a buffer member 1A ′ is attached to a contacted portion with which the pressing portion 181 contacts. The shock-absorbing members 181A and 1A ′ come into contact with each other, so that the impact and sound when the rotary pressing body 18 comes into contact with the first surface portion 1A of the door body 1 during operation are reduced. Further, in the constituent elements of the upper frame 5, the part located in the rotation path of the rotation pressing body 18 is cut out so as not to prevent the rotation of the rotation pressing body 18 and the opening 5 </ b> A (see FIG. 1), 5B (see FIG. 5) is formed.

In one embodiment, the drive mechanism of the rotary pressing body 18 is a rotary solenoid. When the rotary solenoid receives the activation signal, the rotary drive shaft 20 rotates by a predetermined amount in a predetermined direction, and the rotary pressing body 18 connected to the rotary drive shaft 20 rotates downward by a predetermined amount. The timing at which the activation signal is transmitted to the rotary solenoid is before the motor 17 applies a force in the opening width direction to the door body 1, that is, before the motor 17 that moves the moving body 10 toward the door end is activated. The rotary pressing body 18 is rotated from the stowed position to the operating position to push out the first surface 1A on the door bottom side of the door body 1 in a direction in which the door bodies 1 and 2 are refracted. The rotary pressing body 18 slightly opens both the door bodies 1 and 2 from the state in which the door end side end surface 1C of the door body 1 and the door end side end surface 2C of the door body 2 are in close proximity to each other in the fully closed state of the opening. , That is, the extent that the door end side end surface 1C of the door body 1 and the door end side end surface 2C of the door body 2 are slightly expanded using the shaft portion 70 of the hinge 7 as a rotation fulcrum (refractive fulcrum), Is sufficient (see FIG. 6).

The push-out activation mechanism further includes means for returning the rotary pressing body from the operating posture to the storage posture. A return spring (not shown) is built in the casing 19 of the rotary solenoid, and when the energization of the rotary solenoid is interrupted, the rotary drive shaft 20 rotated by a predetermined amount is returned to its original position by the force of the return spring. The rotation is returned to (the position where the rotation pressing body 18 shown in FIG. 5A is in the storage position). In one aspect, the energization is interrupted after a predetermined time after energization by a timer. Alternatively, in another aspect, a predetermined amount of rotation of the rotational drive shaft 20 is detected, and the energization is interrupted after the rotational drive shaft 20 rotates a predetermined amount. Specifically, the timing of cutting off the energization is the timing of turning the rotary pressing body 18 in the operating posture at the latest (the suspension shaft 11) of the door body 1 where the rotary pressing body 18 moves in the opening width direction. Before contact with the door-end side part), the energization is cut off so as to return to the stowed position. Moreover, you may employ | adopt the rotary solenoid which can rotate the rotational drive shaft 20 to a reverse direction instead of using a return spring.

The drive mechanism of the rotary pressing body 18 is not limited to a rotary solenoid, and may be a motor, for example. A rotation pressing body is connected to a motor shaft as a rotation drive shaft. When the motor is energized, the rotation drive shaft is rotated by a predetermined amount to rotate the rotation pressing body. In one embodiment, the motor shaft can be reversed, and the rotation pressing body rotated by a predetermined amount rotates and returns to the original storage posture by reversing the motor shaft. Further, even when a motor is used, the rotary pressing body may be returned to the storage posture by using a return means other than the motor shaft reverse rotation.

The opening / closing operation of the folding door device configured as described above will be described. FIG. 1 shows a fully closed state of the folding door. In the fully closed state of the folding door, the door body 1 and the door body 2 are in a posture extending linearly in the opening width direction. In the fully closed closed state of the folding door, the door end side end surface 1C of the door body 1 and the door end side end surface 2C of the door body 2 are in close proximity to each other. 2 shows a state in which the door bodies 1 and 2 constituting the folding door are slightly bent, and the door bodies 1 and 2 follow the movement trajectory shown in FIG. 4 to be in the open state shown in FIG. In the open state of the folding door, the door body 1 and the door body 2 are positioned on the door bottom side vertical frame 4 side, and are in a posture of being folded in parallel to each other perpendicular to the opening width direction.

When opening the folding door from the fully closed state, when an opening switch (not shown) is turned ON, an activation signal is transmitted to the rotary solenoid of the extrusion activation mechanism, and the rotary solenoid that has received the activation signal rotates the rotation drive shaft 20 by a predetermined amount, The rotation pressing body 18 that rotates downward with the rotation of the rotation drive shaft 20 abuts on the door bottom side portion of the upper end portion of the first surface 1A of the door body 1 (FIG. 1) and further pushes it. The door bodies 1 and 2 have a square shape in plan view as shown in FIG.

Subsequently, an activation signal is transmitted to the motor 17, the drive pulley 15 is rotationally driven by the motor 17, and the lower portion 16A of the belt body 16 moves to the door bottom side. The door body 1 moves to the door edge side along the door 9. When the driving pulley 15 is rotationally driven by the motor 17 (when the force in the opening width direction is applied to the door body 1), the door bodies 1 and 2 are already shown in FIG. Since the door body 1 does not stretch, even if a force that moves the door body 1 in the opening width direction is applied, the door body 1 is on the door bottom side. The door bodies 1 and 2 are refracted well by moving to. In one aspect, the activation signal to the motor 17 is controlled so that the activation signal is transmitted to the motor 17 after being delayed by a timer for a predetermined time after the opening switch is turned on. Alternatively, a predetermined amount of rotation of the rotary drive shaft 20 is detected, and control is performed such that an activation signal is transmitted to the motor 17 after detection.

As shown in FIG. 4, when the door body 1 moves to the door butt side, the door butt side of the door body 1 turns to the indoor side and the door tip side turns to the outdoor side with the suspension shaft 11 in between. In conjunction with the rotation of the body 1, the door body 2 also turns to the indoor side with the end of the door butt side as a rotation fulcrum using the rotation drive shafts 8 </ b> A and 8 </ b> B. No. 7) is refracted and protrudes indoors, the door body 1 moves to the door bottom side so as to narrow the refraction angle between the door body 1 and the door body 2, and the door body 1 and the door body 2 move in the opening width direction. On the other hand, it is folded while rotating to a posture orthogonal to each other, so that the opening portion is opened.

After the rotation pressing body 18 pushes out the door end side portion of the upper end portion of the first surface 1A of the door body 1, the energization to the solenoid is cut off, and the rotation pressing body 18 in the operating posture is rotated. Then, the rotating posture returns from the operating posture to the storage posture by the return spring. The rotary pressing body 18 in the operating posture is located on the movement path of the door-end side portion of the door body 1, and at the latest, the door-end side portion of the door body 1 moving from the fully closed state to the door bottom side is located. Prior to contacting the rotary pressing body 18, the rotary pressing body 18 is controlled to return to the storage position. In one aspect, the energization is interrupted after a predetermined time after energization by a timer. Alternatively, in another aspect, a predetermined amount of rotation of the rotary drive shaft 20 is detected, and energization is interrupted after detection.

When the folding door is closed from the open posture, the door body 1 and the door body 2 follow the reverse movements and become the fully closed posture of the folding door. In one aspect, the lower part 16A of the belt body 16 is moved to the door-end side by reversing the motor 17, and the moving body 10, that is, the door body 1 is moved to the door-end side.

The present invention can be used for an automatic folding door.

It is the top view and front view of a folding door apparatus in an opening part fully closed state. It is the top view and front view which show the state in which the door end side door body and the door bottom side door body were slightly bent from the fully closed state of FIG. It is the top view and front view of a folding door apparatus in an opening part full open state. It is a top view which shows the movement locus | trajectory of the door end side door body of a folding door apparatus, and the door butt side door body. It is a fragmentary longitudinal cross-sectional view of the upper part of a folding door apparatus, (A) has shown the state which has a rotation press body in an accommodation position, (B) has shown the state which has a rotation press body in an operation position. (A) is a plan view showing a door-end side door body and a door-end side door body in the fully closed state of the opening, and (B) is a door in a state where the extrusion starting mechanism is operated from the fully closed state of the opening in (A). It is a top view which shows a front side door body and a door bottom side door body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door body 2 Door body 7 Hinge 10 Moving body 17 Motor 18 Rotation press body 20 Rotation drive shaft

Claims (2)

A door trailing end of the first door member which is hung on a movable body that moves in the opening width direction, the refractive portion and the door leading end of the second door body, the the door trailing side is rotatably supported refracted linked via the moving body and the first door body by moving the opening width direction toward the door trailing side and the second door member is refracted the first door body and the A folding door device in which an opening closed by a two-door body is opened,
A pressing body rotatable between a storage posture retracted from the movement path of the door body into the upper frame above the opening and an operation posture protruding from the lower surface of the upper frame to the opening;
A rotary drive means causing rotation into the actuating position of the pressing member from said retracted position,
And return means for causing rotation to the retracted position of the pressing member from said operating position,
Opening drive means for moving the moving body in the opening width direction toward the door butt side;
With
In the fully closed state of the opening, the pressing body is retracted into the upper frame, and when the door is opened by the opening driving unit, the pressing unit is moved from the lower surface of the upper frame by the rotation driving unit. becomes rotated to operate posture so as to protrude into the opening downwardly to press contact with the close door body surface portion to the bent portion of the at least one of the door body is fully closed opening, the Encourage the door body to bend by applying a force in the direction perpendicular to the opening width direction to the door body surface .
Electric folding door device. It said return means, a pressing body which is in the working position, before the pressing member is in contact with the site that was hung in a mobile of the first door member moves to an opening width direction, returning to the retracted position The electric folding door device according to claim 1 , wherein

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