JP6676604B2 - Door device - Google Patents

Description

  The present invention relates to a door device capable of self-closing against wind pressure even in a state where wind pressure is received.

In the case where there is a pressure difference between the inside and outside of the room, the applicant considers that the door can be easily opened and the door can be easily opened by eliminating the pressure difference only by opening the door with the door knob, and the applicant has disclosed the following patent document. We proposed a door device with a mechanism and obtained a patent.
Japanese Patent No. 5535348

  In this method, the door is divided into two parts on the left and right sides, namely, a hanging door and a door that is pivotally supported by the hanging door. Can operate the two doors integrally, and when the differential pressure is generated, the door-end door can be opened first to reduce the opening force.

Further, the following patent document is structurally capable of improving the convenience of both a wheelchair user and other users, even in a place where the use of a sliding door is difficult, in which a flat door moving area is small, and the door can be improved. It was proposed as a simple and practical electric / manual folding door.
JP-A-2000-356071

  As shown in FIG. 25, a folding door 100 is constituted by a small door 60 having a pivot axis at one side end and a large door 50 movably connected to the other side end of the small door 60 via a hinge 9. Further, the width of the small door 60 and the large door 50 is set to 1: 2.

  A rotating hardware 8 is provided at the center of the upper surface of the large door 50, and the rotating hardware 8 can be freely moved in an upper suspension rail (not shown) arranged in parallel above the small door 60 and the large door 50. Engaged.

  The small door 60 is suspended and fixed to one end side (hanging side) of the upper suspension rail via the rotating hardware 11 so as to be pivotable, so that the small door 60 has a pivot shaft at one end. .

  A drive rail (not shown) is fixed to the upper part of the large door 50 having a moving axis of the rotating hardware 8 in the upper suspension rail so as to be parallel to the upper suspension rail 7.

  In the figure, reference numeral 22 denotes a handle for manual opening and closing provided on the large door 50.

  Next, the operation at the time of the opening operation of the folding door 100 will be described, and in the fully closed state, when the power of the opening operation side is turned on to the electric drive unit 3 by remote operation, various sensors, etc., the rotating rod 5 is moved to the closed side end side. Starts to rotate to the hanging side, and a load is applied to the large door 50 via the slide member 6. The sliding member 6 guides the load applied via the rotating rod 5 in an ideal rotational movement direction by moving in the drive rail fixed to the large door 50, and the large door 50 follows a smooth trajectory. Make it possible to draw.

  In addition, since the connection point between the rotary rod 5 and the large door 50 can be changed between the fully opened state and the fully closed state via the slide member 6, when the opening operation is performed from the fully closed state, the connection point is changed to the hinge 9 at the time of the opening operation. The connecting point can be separated from the hinge 9 during the closing operation from the fully open state. Therefore, the driving torque required for the opening operation is reduced, and the closing operation is reliably and smoothly performed.

  The large door 50 is hung on the upper transom part by the rotating hardware 8, and the mounting position of the rotating hardware 8 is at the center of the large door 50 (possible eccentricity). It is drawn to the hanging side while rotating about 8.

  Since the small door 60 and the large door 50 have a length distribution of approximately 1: 2, the rotating metal piece 8 of the large door 50 moves all the way during opening and closing by moving the rotating metal piece 8 in the upper suspension rail 7. , And maintain a linear flow line.

  As a result, the large door 50 moves from the position 1a to the position 2a, and the small door 60 movably connected to the large door 50 is a force accompanying the load applied to the large door 50, The folding door 100 moves from the position 1b to the position 2b, and the folding door 100 is completely opened.

  Next, the operation at the time of the closing operation will be described. In the fully opened state, when the power source on the closing operation side is turned on to the electric driving unit 3 by remote operation, various sensors, etc., the rotating rod 5 is moved from the hanging side to the closing side end. Start to rotate to the side.

  At this time, due to the load applied to the large door 50 via the slide member 6, both the large door 50 and the small door 60 draw the flow line at the time of the opening operation in the opposite direction, and move from the position of the sign 2a to the position of the sign 1a and the sign 2b. From the position to the position of the reference numeral 1b, respectively, and shift to the fully closed state.

The following patent document has been proposed as providing a folding door capable of exhibiting a function as a fire door or the like by reducing the rotational force applied to the door by applying pressure.
JP-A-5-295555

  As shown in FIG. 26, the fire prevention door 110 includes a self-closing main door 111 and a self-closing child door 112 that is horizontally rotatable with respect to the main door 111. A door locking device 113 for integrally opening and closing both doors is provided between the child door 112 and the door locking device 113. The door locking device 113 includes a seat plate 117 integrally attached to the child door and a parent plate. A seat plate 118 integrally attached to the door, a shaft portion 119 for connecting the two seat plates rotatably to each other, a locking mechanism 120 for setting and holding the two seat plates at a desired angle; A release mechanism 121 is provided for releasing a state in which the seat plate is set and held at a desired angle.

  When the child door starts to open first from the closed state, the first seat plate on the child door side rotates around the shaft with respect to the second seat plate on the parent door side. The first seat plate is locked to the second seat plate by the locking mechanism of the door locking device, and both seat plates are set and held at the angle, and thereafter, the child door is opened. When the door is folded with respect to the parent door, the two doors open together to perform the opening operation to the end.

  Thereafter, when the closing operation is started integrally with both doors from the open state in the above state, when the main door is closed at a desired angle, the first seat plate and the second seat plate are released by the release mechanism of the door locking device. As a result of releasing the locked state of the seat plate, the child door performs the closing operation independently of the parent door, and performs the closing operation to the end.

  Since the entire door is divided into two doors, a parent door and a child door, the width of each door is reduced. As a result, the effect of the additional pressure on each door is based on the above formula of rotational force. (Ie, the rotational force applied per sheet becomes smaller).

  Therefore, the additional rotational force due to the additional pressure on the small door which starts the opening operation first becomes small, and the child door can be easily opened, and the additional rotational force due to the additional pressure on the subsequent parent door becomes small. Open the door and operate. As a result, the door can be smoothly opened and closed without considering the influence of the additional pressure.

  According to Patent Literature 2, the door pocket portion becomes unnecessary, and the planar moving area of each door becomes compact. Therefore, even in a place where the installation of the sliding door is difficult, the opening to the width is maximized. be able to.

  In addition, not only automatic opening and closing, but also manual opening and closing assist at that time is possible, so folding doors are highly convenient for both wheelchair users who need automatic opening and closing and users who do not need automatic opening and closing. Can be provided. Further, opening and closing by manual opening and closing can be performed even during a power failure.

  By the way, Patent Literature 1 discloses that the door can be easily opened to open the door toward the wind pressure. However, even when the door receives the wind pressure in the opposite direction, the door may self-close against the pressure. May be required.

  When the barometric pressure inside the building is measured, even if there is a pressure difference of 3 hPa between the first and eighth floors of the building with windows and doors open, the inside of the entrance on the first floor of a positive pressure building with windows and doors closed. The pressure difference between the outside and the outside is a difference that cannot be measured. However, even with the slight pressure difference, if the window or door is opened, the air flows out from the inside to the outside.

  For example, an elevator machine room is one example.The elevator shaft is the place where the chimney effect occurs most in the building, and the warm air inside the shaft pushed up by the chimney effect enters the machine room and the air pressure is higher than outside. Becomes

  Fire doors include a normally closed fire door and an occasionally closed fire door. In order to prevent the spread of fire in the event of a fire, it is required that the door be closed as needed in the event of a fire.

  Although the above-mentioned Patent Document 2 facilitates opening and closing, it does not allow the door to self-close when a differential pressure is generated.

  In Patent Literature 2, self-closing cannot be performed when the differential pressure between chambers is +500 Pa. Further, when the door is opened when the pressure difference between the chambers is -500 Pa, Fd = 112 N is required, and when the door is closed, the door is pressed by 94 N force and closes quickly, which is dangerous.

  In Patent Document 3, there is a dust in the center of the door, and it is not a specific fire prevention facility. In addition, in order to obtain a required rotation angle, dust is required to be 15.6 mm or more, which is not an actual product.

  Furthermore, even if the door-side door is set small, the door cannot be closed even if a large force self-closing device is attached to the door-side door. The door does not close when air passes through at a differential pressure.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a door device with a differential pressure mitigation mechanism which can solve the above-mentioned disadvantages of the conventional example and can automatically close a door-end door in both normal times and when a differential pressure is generated.

In order to achieve the above object, the present invention according to claim 1, wherein a door is a hanging door having a concave door shape and a door end door having a convex door shape by being pivotally supported by the hanging door. In a door device provided with a door closer, which is divided into two right and left sides, a hanger rail is provided above the door, and a slide guide rail is provided below the door. A sliding body that can slide even when a lateral force is applied thereto is provided as a mating member, and a lower slide guide is provided by a guide wheel as a member that engages with the slide guide rail. And the area of the hanging door, the area connecting the traveling body and the lower slide guide, and the area on the hanging side of the hanging door are combined to form a line connecting the traveling body and the lower sliding guide. Is larger than the area on the side of the door Constant, and holds the door to be pushed open by the wind pressure traveling body and the lower slide guide, a door leading side to reverse the air pressure applied to the area of closing the side force Tosakitobira, utilizing the inversion of the force The main point is that the door can be closed by itself, and the door can be closed by a door closer in normal times.

  According to the first aspect of the present invention, when the door is in the fully opened state, the door end door having a convex door shape and the hanging door having a concave door shape are completely folded, and are perpendicular to the frame. It is oriented in the direction. From this state, the door starts to close due to the load of the door closer, the traveling body slides on the hanger rail, and the lower slide guide moves on the slide guide rail to guide the load in an ideal rotational movement direction, so that the door head door is smooth. Make it possible to draw trajectories.

  At this time, the door head is hung on the hanger rail by the traveling body, and the mounting position of the traveling body is at the center of the door head (possible eccentricity). It rotates and closes.

  By holding the intermediate portion (moving fulcrum), it is possible to reverse the opening force on the hanging side to the closing force by the moving fulcrum under the influence of wind pressure.

  In addition, the size of the door door is convex and large, the area of the hanging door is concave and the area is reduced, so that the gap can be made earlier and the effect of wind pressure can be reduced. If the area combining the hanging side partial area + the hanging door area is set to be larger than the front side partial area, the area is set to the side closed at the time of the differential pressure between the rooms, and the area is automatically closed.

  In this way, the left and right rotational force generated by the pressure is minimized by the door area balance, thereby holding the door pushed and opened by the wind pressure with the hanger car and the lower slide guide in the middle of the door, and the door self-closes. I do. In normal times, the self-closing device can be used to self-close.

  In addition, the traveling structure located at the top has a horizontal force resistance function, and reduces the frictional resistance due to the horizontal direction force generated by the force received in the lateral direction (out-of-plane direction) by wind pressure, and withstands large inter-room differential pressure The door can be opened and closed smoothly.

  Further, the presence of the lower slide guide prevents the lower part of the door from being twisted by the differential pressure between the chambers, so that the door can be smoothly opened and closed.

  Then, the hanging door also rotates with the movement of the door head door, and finally the door head door and the hanging door are lined up in a straight line and are in a fully closed state.

  The gist of the present invention described in claim 2 is that the traveling body slidable even when receiving a lateral force is a hanger car having a suspension shaft supported by a bearing.

  According to the second aspect of the present invention, the traveling body is a hanger car, and the structure of the hanger car that can slide even when a lateral (out-of-plane) force is received is suitable for reducing friction by bearings. be able to.

  The gist of the present invention described in claim 3 is that the running body that can slide even when it receives a lateral force is a running block containing a ball retainer.

  According to the third aspect of the present invention, similarly to the second aspect, the hanger rail and the traveling block are precision-ground as a structure of the traveling body which can slide even when receiving a lateral (out-of-plane) force. The ball rolls on the rolling surface of the row, and the ball row is circulated by the ball retainer and the end plate incorporated in the running block, so that the ball can run while maintaining a constant low friction coefficient.

  According to a fourth aspect of the present invention, the traveling body, which is a traveling block containing a ball retainer, allows the door mounting portion to be slidably adjusted by 10 mm in the lateral direction, and the lower slide guide is slidably adjustable by 10 mm in the lateral direction and is removable. The main point is that

  According to the fourth aspect of the present invention, when the hanging door has a rotation angle of 80 to 90 degrees, resistance to the rotation of the door is easily generated due to an error in the mounting position of the traveling body and the lower slide guide. As described above, it is necessary to finely adjust the position in the left-right direction when the door is hung, and the left-right adjustment can be performed.

  The lower slide guide needs to be hung in a detached state when the door is hung, and since it is a rotating or sliding hardware, it can be dealt with by making it removable for maintenance and replacement of parts.

  The gist of the present invention described in claim 5 is that the lower slide guide can withstand a lateral pressure of 100 kg by wind pressure.

  According to the fifth aspect of the present invention, when the pressure difference between the chambers is generated, the lower slide guide exerts pressure on the door in an out-of-plane direction. Since 1970N is applied to the door at 1000 Pa, the lower guide rail exerts a half of that force. For this reason, the lower slide guide and the guide rail need to have a structure capable of withstanding a lateral (out-of-plane) directional force of 1000 N (about 100 kg).

  As described above, the door device of the present invention, as a door device with a differential pressure mitigation mechanism, can self-close the door-end door in both normal times and when a differential pressure is generated.

It is a perspective view in a state without a door frame showing one embodiment of a door device of the present invention. It is a perspective view in a state with a door frame showing one embodiment of a door device of the present invention. It is a front view showing one embodiment of a door device of the present invention. It is explanatory drawing which shows the attachment position of the door closer of the door apparatus of this invention. FIG. 3 is an explanatory view of a first stage showing a closing order of the door device of the present invention. FIG. 4 is a diagram illustrating a closing order of the door device according to the present invention and is an explanatory diagram of a second stage. It is an explanatory view of a third stage showing a closing order of the door device of the present invention. FIG. 9 is a diagram illustrating a closing order of the door device according to the present invention and is an explanatory diagram of a fourth stage. It is explanatory drawing which shows the closed state of a comparative example. It is explanatory drawing of the closing principle of the door apparatus of this invention. It is a longitudinal side view of a hardware external attachment type in the case of using a hanger car of the door device of the present invention. It is a vertical side view of the hardware center type in case the hanger vehicle of the door apparatus of this invention is used. It is a front view showing attachment of a hanger car and a door closer. It is a vertical side view at the time of using the traveling block with a ball retainer of the door apparatus of this invention. It is a front view at the time of using the traveling block with a ball retainer of the door apparatus of this invention. It is a perspective view of the traveling block with a ball retainer. It is a vertical side view of the traveling block with a ball cage. It is a longitudinal side view of a metal center type showing engagement of the slide guide rail with the first example of the lower slide guide. FIG. 4 is a vertical sectional side view of an external hardware type showing engagement of a slide guide rail with a first example of a lower slide guide. It is a front view showing engagement of a slide guide rail and the 1st example of a lower slide guide. It is explanatory drawing of the hardware external attachment type of the guide wheel of a lower slide guide. It is explanatory drawing of the metal center type of the guide wheel of a lower slide guide. It is a cross-sectional plan view showing one embodiment of the door device of the present invention. It is a dimension addition view showing an embodiment of the door device of the present invention. It is a top view showing a conventional example. It is a top view which shows another conventional example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a door device according to an embodiment of the present invention in which a door frame is omitted, and FIG. 2 is an overall perspective view with a door frame. In FIG. 1, reference numeral 12 denotes a door frame.

  The door that fits into the door frame 12 is divided into two parts on the left and right into a hanging door 13 having a recessed door shape and a door-end door 14 that is pivotally supported by the hanging door 13 and has a convex door shape. It is a folding door, and a door closer 15 is provided.

  In the figure, 16a is a hanging hinge for hanging the hanging door 13, 13b is an intermediate hinge for hanging the door door 14, 25 is an inspection lid (top), 26 is an inspection lid (bottom), and 27 is a strike. , 28 are handle mounting holes

  As shown in FIGS. 4 and 12, the door closer of the door closer 15 is engaged with the door end door 14 or the hanging door 13, and FIGS. 2 to 4 show three types of door closers (1) (1) ( 2) (3) indicates that it can be used, and one of these types is used.

  FIG. 4 shows the details of each type (1), (2), and (3) of the door closer 15. (1) is a door closer push-open type, which is # 1, the mounting position is the upper frame on the hanging side, and the connecting arm is Usually a two-piece configuration (4-link mechanism), but above the door opening / closing mechanism, a special custom-ordered product (1 arm / Slide guide). The effective range of the door closing force is 0 to 90 degrees.

  The door closer (2) is of a flip-open type, and the mounting position is the upper end of the door-side door 14. The door closer articulated arm usually has two parts (four-bar link mechanism), but the special mechanism is a specially ordered door closer (the mechanism is modified and remodeled into one arm + the front car and slide guide rail (upper frame)) on the door opening and closing mechanism. The effective range of the door closing force is from 0 to 75 degrees opening angle, and enters the dead zone when it is opened at 90 degrees, and the door closing force becomes 0, so the spring arm etc. The closing force assist is an upper frame spring reaction force device or a starting component that closes from a 90-degree open state with a spring arm to a hanging door portion.

  The door closer (3) is a vertical frame built-in type, and the mounting position is built in the vertical frame / hanging side hanging door 13 on the hanging side. Generally, the door closer main body is built in the door side, but it is reversed in relation to space, and the main body is housed in the frame side and the receiving part is housed in the door side. The door closer closing force corresponds to the door weight of 80 kg in a normal usage, so there is a closing force of about DC # 3. Since the door mechanism can close the door with a small force by the door mechanism, it has a sufficient function. There is a restriction on the door closer mechanism, and the opening angle cannot be adopted for a door having an opening angle up to 90 degrees and a door thickness that is too large. (Internal connecting arm interferes with door corner)

  Also, as shown in FIGS. 11 and 12, a hanger rail 21a is provided above the door so as to be built in the upper frame of the door frame 12, and a floor below the door is provided with a guide rail for rotating the lower part of the door. A certain slide guide rail 23 is provided.

  The hanger rail 21 is formed by a channel member having a slit with a downward opening in the length direction. A small channel-like upward opening groove beside the slit serves as a rail for a traveling wheel 17a of the hanger wheel 17 described later.

  In the middle part of the door end door 14, as a hanger wheel 17 that engages with the hanger rail 21, a hanger type hanger wheel 17 having running wheels 17a in front and rear is provided.

  In a middle part of the door end door 14, a bogie type hanger car 17 having running wheels 17a at the front and rear is provided as a running body to be engaged with the hanger rail 21.

  FIG. 11 shows the case of a hardware external type, and FIG. 12 shows the case of a hardware center type. There are two cases: a case where the hanger car 17 is attached to the outside of the door (FIG. 11) and a case where it is attached to the center line of the door (FIG. 12). Can be selected.

  Further, as shown in FIG. 13, the hanger wheel 17 is slidable even when it receives a lateral force, and a bearing 20 is disposed at an engagement portion with a suspension shaft 19 of a door provided on the hanger wheel 17, Reduce frictional resistance.

  Further, in the hanger 17 car, the door attaching portion 17b to the door end door 14 by means of screws can be slidably adjusted by 10 mm in the lateral direction. The hanger car 17 is provided at an intermediate portion of the door end door 14, and the door mounting portion 17 b is covered with an inspection lid (upper) 25.

  FIGS. 14 and 15 show another embodiment, in which instead of the hanger 17 as a slidable traveling body even when receiving the lateral (out-of-plane) force, the vehicle also receives a lateral force. A traveling block 39 containing a ball retainer was used as a traveling body as a traveling body capable of sliding.

  16 and 17 show the traveling block 39 with a ball retainer. In the drawings, reference numeral 41 denotes a ball retainer having a ball 40, reference numeral 42 denotes an end plate, and reference numeral 43 denotes an end seal.

  The hanger rail 21 has a cross-sectional shape such that the traveling block 39 is fitted therein. The balls roll on four rows of rolling surfaces that are precision-ground on the hanger rail 21 and the traveling block 39, and the ball retainer 41 and the traveling block The ball row is circulated by the end plate 42 incorporated in the block 39.

  Each ball row is arranged at a contact angle of 45 ° so that the same rated load is applied in four directions (radial direction, reverse radial direction, and lateral direction) acting on the traveling block 39, so that it can be used in any posture. And a well-balanced preload is applied, so that rigidity in four directions can be increased while maintaining a constant low coefficient of friction.

  Since the traveling block 39 is designed to have high rigidity as described above, a highly accurate and stable linear motion can be obtained, and the traveling block 39 can be slid even under a lateral force with reduced frictional resistance.

  Further, similarly to the hanger 17 vehicle, the traveling block 39 is capable of slidingly adjusting the door mounting portion 44 by screwing the hanging door 13 and the door end door 14 by 10 mm in the horizontal direction.

  The slide guide rail 23 is a channel member fixed to the floor with screws or the like.

  As shown in FIGS. 18 to 22, a guide wheel 30 which is a lateral wheel supported by an arm 31 is provided as a lower slide guide 18 to be engaged with the slide guide rail 23. The guide wheel 30 is made of synthetic resin such as nylon or synthetic rubber.

  FIGS. 18 and 21 show the hardware center type, and FIGS. 19 and 22 show the hardware external attachment type. The case where the guide wheel 30 is located on the center line of the door (FIGS. 18 and 21) and the case where it is located outside the door (FIG. 19) , FIG. 22), and the hardware center type and the hardware external type correspond to the case where the hanger wheel 17 is located on the center line of the door and the case where it is located outside the door.

  An elongated hole 33 is formed in a pedestal 32 that is continuous with the arm 31, and the lower slide guide 18 can be slidably adjusted by 10 mm in a lateral direction with a screw. It is also removable.

  The guide wheel 30 attached to the pedestal 32 fits into a notch in the door end door 14 and is covered with an inspection lid (lower) 26.

  In the figure, reference numeral 34 denotes tight rubber, which is provided on the lower surface of the door end door 14, and the tip of which abuts on the upper surface of the slide guide rail 23.

  It is assumed that the lower slide guide 18 and the slide guide rail 23 can withstand a lateral pressure of 100 kg due to wind pressure on the door.

  In this manner, the lower slide guide 18 that engages with the guide rail 23 as a rotary slide of the lower part of the door is provided below the portion of the door end door 14 where the hanger wheel 17 is provided in a linear direction.

FIG. 24 shows an example of the dimensions of the door. The area obtained by adding the area C of the hanging door and the area B of the hanging end of the door end door of the line connecting the hanger car and the lower guide car connects the hanger car and the lower guide. It is set to be larger than the area A on the door side of the door end door 14 of the ferrule. Incidentally, the area A was 0.742 m ² , the area B was 0.845 m ² , and the area C was 0.3616 m ² .

  A description will be given of how the hanger car 17 or the traveling block 39 with the ball retainer and the lower slide guide 18 hold the door pushed and opened by the wind pressure, and as a result, the door closes by the door closer 15 as a result.

FIG. 5 to FIG. 8 show the closing order. FIG. 5 shows that in the fully opened state of the door, the door-end door 14 having a convex door shape and the hanging door 13 having a concave door shape are completely folded. , And is oriented substantially perpendicular to the door frame 12. The wind pressure direction is from the indoor side to the outdoor side, and the opening area A is 1.66 m ² (effective width = 0.784 m × height = 2.1 m) as the entire opening.
Differential pressure between indoor and outdoor = 980 Pa (980 N / m ² )
Door area A = 0.945m × 2085m = 1.97m ²
Door pressure == 980 × 1.97 = 1930N (197Kgf)
Hanger car side guide roller rolling resistance coefficient k = 0.01
Rolling resistance Rf = 0.01 × 1930 == 19.3N (1.96 kgf)
In general, in the lock part, it is expected to be で by leverage principle.
Therefore, it can be calculated as 19.312 = 9.65N.

  From this state, the door starts to be closed by the load of the door closer 15, the hanger wheel 17 or the traveling block 39 with the ball retainer slides on the hanger rail 21, and the lower slide guide 18 moves on the slide guide rail 23 to rotate the load to the ideal rotation. It leads to the moving direction, and enables the door end door 14 to draw a smooth locus. (FIGS. 6 and 7)

  At this time, the door top door 14 is hung on the hanger rail 21 by the hanger wheel 17 or the traveling block 39 with the ball retainer, and the mounting position of the hanger wheel 17 or the traveling block 39 with the ball retainer is set at the center of the door door 14 (variable). Because of the load of the door closer 15, the door end door 14 is closed while rotating around the hanger car 17 or the traveling block 39 with the ball retainer.

Then, by holding the intermediate portion, it is possible to mitigate the effects of wind pressure force substantially "0".

  Further, as described above, the area obtained by adding the area (C) of the hanging door and the area (B) of the hanging door door of the line connecting the hanger car or the traveling block 39 containing the ball retainer and the lower guide is a hanger car. By setting the area (A) on the door side of the door door 14 of the line connecting the lower door and the lower guide, the shape of the door door 14 is made convex and large, and the hanging door is made concave. The left and right balance of the door is set to the area that closes slightly when the pressure difference between the rooms is reached.

Shows a comparison of the door unit and a general door of the present invention in FIG. 10, in a general door is the door in wind force not own closed, pressure at the time of the area A <area B + area C of the door at the door device of the present invention Acts in the self-closing direction.

In this manner, the left and right rotational force generated by the wind pressure is minimized by the area balance, so that the door is pushed and opened by the wind pressure by the door hanger wheel 17 or the traveling block 39 with the ball retainer and the lower slide guide 18. And the door can be closed by the self-closing device.

  Further, the hanger wheel 17 or the traveling block 39 with the ball retainer located at the upper portion has a horizontal resistance function, and reduces the frictional resistance due to the horizontal direction force generated by the force received in the horizontal direction by the wind pressure, thereby increasing the room difference. Withstands pressure and allows the door to open and close smoothly.

  Furthermore, the presence of the lower slide guide 18 prevents the lower part of the door from being twisted due to the pressure difference between the chambers, so that the door can be smoothly opened and closed.

  Then, the hanging door 13 also rotates with the movement of the door head door 14, and finally the door head door 14 and the hanging door 13 are aligned in a straight line as shown in FIG.

1a, 1b, 2a, 2b ... Reference numeral 3 ... Electric drive unit 5 ... Rotating rod 6 ... Slide member 7 ... Upper suspension rail 8 ... Rotating hardware 9 ... Hinge 11 ... Rotating hardware 12 ... Door frame 13 ... Hanging door 14 ... Door Door 15: Door closer 16a: Suspension hinge 16b: Intermediate hinge 17: Hanger car 17a: Running wheel 17b: Door mounting part 18: Lower slide guide 19: Suspension shaft 20: Bearing 21: Hanger rail 22: Puller 23 … Slide guide rail 25… Inspection lid (top)
26… Inspection lid (bottom)
27 ... strike 28 ... handle mounting hole 30 ... guide wheel 31 ... arm 32 ... pedestal 33 ... elongated hole 34 ... tight rubber 39 ... running block 40 with ball retainer ... ball 41 ... ball retainer 42 ... end plate 43 ... end seal 44 ... door Attachment part 50 Large door 60 Small door 100 Folding door 110 Fireproof door 111 Self-closing parent door 112 Self-closing child door 113 Door locking device 117 Seat plate 118 Seat plate 119 Shaft 120 … Locking mechanism 121… Release mechanism

Claims (5)

A door with a door closer, which is divided into two parts, a left and right door, a hanging door with a concave door shape and a front door with a convex door shape supported by the hanging door. In the apparatus, a hanger rail is provided above the door, and a slide guide rail is provided below the door, and the door can be slid even under a lateral force as an engagement with the hanger rail at an intermediate portion of the door end door. A lower slide guide by a guide wheel is provided for engaging the traveling body with the slide guide rail, the door end door has a larger area than the hanging door, and the area of the hanging door, the traveling body and the lower The area combining the area on the hanging side of the door end door of the line connecting the slide guide is set larger than the area on the door side of the door end door of the line connecting the traveling body and the lower slide guide, and the traveling body and wind pressure in the lower slide guide Holding the door to be more pushed open, the door end side of the closing by reversing the air pressure applied to the area side force Tosakitobira made possible autism by using the inverse of the force, also when normal is A door device that is self-closing by a door closer.   2. The door device according to claim 1, wherein the traveling body slidable even when receiving a lateral force is a hanger car having a suspension shaft supported by a bearing.   The door device according to claim 1, wherein the traveling body slidable even when receiving a lateral force is a traveling block containing a ball retainer.   4. The door according to claim 3, wherein the traveling body, which is a traveling block containing a ball retainer, is capable of slidingly adjusting a door mounting portion by 10 mm in a lateral direction, and is capable of slidingly adjusting a lower sliding guide by 10 mm in a lateral direction and being removable. apparatus. The door device according to any one of claims 1 to 4, wherein the lower slide guide withstands a side pressure of 100 kg by wind pressure.