JPH09144425A - Automatic folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the looseness of a door-end door of a folding door from occurring under a closed state by a simple structure. SOLUTION: This automatic folding door has a shaft-side door 6 swung centering around a shaft 6A, a door-end door 11 being connected to the shaft- side door 6 in a bendable manner through a hinge 7 and having guide rollers 10 at an upper end, a guide rail 9, into which the guide rollers 10 are inserted, and a driving means pushing the shaft-side door 6 with specified pushing force under a closed state. A lever mechanism converting pushing force working to the shaft-side door 6 from the driving means under the closed state into working force pushing the guide rollers 10 for the door-end door against the guide rail 9 is mounted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding automatic door device having a door-end door which is foldably connected to a hanging door via a hinge, and more particularly to a rattling of the door-end door when the door is closed. Regarding preventing.

[0002]

2. Description of the Related Art As a conventional folding automatic door device, there is one shown in FIGS. 7 and 8, which will be described below.
In FIGS. 7 and 8, reference numeral 1 denotes a folding automatic door device, which has a pair of folding doors 5 and 5 that can open and close an opening 4 that connects the interior 2 and the exterior 3. Each folding door 5,5
Is a suspension door 6, which is rotatably arranged on both sides of the opening 4.
6 and a guide rail 9 that is foldably connected to the hanging doors 6 and 6 via hinges 7 and 7 (hinge) and that travels on guide rails 9 and 9 arranged in the seamless space 8 above the opening 4. It is composed of a door-end door 11 and 11 having rollers 10 and 10. The guide rails 9, 9 are arranged over the opening 4, and the guide rollers 10, 10 are rotatably inserted therein. The guide rails 9, 9 and the guide rollers 10, 10 are
A predetermined gap ΔS is formed between them in order to allow the rolling of (see FIG. 8). Each door 6, 6, 11, 11
The window frames 14 and 14 are fitted in a rectangular frame 13 extending from the blind 8 to the floor 12, and the front end sides of the doors 11 and 11 are engaged with seal members 15 and 15 interposed therebetween. Or separated. Each folding door 5,5
The hanging doors 6 and 6 of the rotary shaft 6A and 6
A and a drive mechanism 17 arranged in the seamless space 8 via the link mechanisms 16 and 16.

When a passerby comes in front of the folding automatic door device 1 from the outside 3 side, a passerby detecting means (not shown) detects the presence of the passerby and drives the drive motor 17 to drive the link mechanisms 16, 16. The rotating shafts 6A and 6A are rotated in the direction A through which the opening operation is performed. As a result, each folding door 5, 5
As shown in FIG. 9, the swing doors 6 and 6 swing from the closed state so as to project toward the room 2 side, and follow the swing of the swing doors 6 and 6 and are connected by the hinge 7. The door-end doors 11 and 11 thus formed are folded toward the room 2 so as to be separated from each other while being guided by the guide rollers 10 and 10 and the guide rails 9 and 9 to open the opening 4 (Fig. The state of the two-dot chain line shown in 9). Then, after a predetermined time, the drive motor 17 is driven to rotate in the direction B in which the rotary shafts 6A and 6A are closed via the link mechanisms 16 and 16. As a result, the folding doors 5 and 5 are, as shown in FIG.
From the open state, the hanging doors 6 and 6 swing toward the outdoor 3 side, and following the swing of the hanging doors 6 and 6, the door end doors 11 and 11 connected by the hinges 7 guide the roller 10.
While being guided by 10 and the guide rails 9, 9, the opening 4 is closed while the folding to the outside 3 side is released so as to be close to each other (the state of the solid line shown in FIG. 9).

By the way, in the folding automatic door device 1, in order to maintain the closed state of the opening 4 by the folding doors 5 and 5, after the opening 4 is closed by the folding doors 5 and 5, the driving motor is driven. 17, the suspension doors 6 and 6 are pressed in a direction B in which they are closed with a predetermined pressing force F.

[0005]

However, in the folding automatic door apparatus 1 according to the prior art, after the opening 4 is closed by the folding doors 5 and 5, the hanging door 6 is held to maintain this closed state. 6 is pressed by the drive motor 17 with the pressing force F. Therefore, in the closed state, the hanging doors 6 and 6 of the folding doors 5 and 5 are pushed by the pressing force F from the drive motor 17.
The swing is restricted by, but the door-end door 11, which is foldably connected to the hanging doors 6 and 6 via the hinge 7,
Even if the hanging doors 6 and 6 are pressed by the pressing force F from the drive motor 17 so as to maintain the closed state, the hinge 11 is a fulcrum when the wind from the room 2 or the room 3 is received. Rotate as. As a result, the guide rollers 10, 10 provided at the upper ends of the door-end doors 11, 11 rattle with respect to the guide rails 9, 9 having the gap ΔS, which causes a problem of noise.

The present invention has been made to solve this problem, and an object of the present invention is to provide a folding automatic door device which has a simple structure and can prevent rattling of the front door in the closed state. To do.

[0007]

In order to solve the above problems, in the folding automatic door apparatus according to the present invention, in claim 1, a hanging door that swings around a rotation axis and a hinge is attached to the hanging door. A door-end door that is foldably connected through and has a guide roller at the upper end, and a guide rail that is provided over the opening that is opened and closed by the hanging door and the door-end door and into which the guide roller is inserted. A folding door automatic door comprising a drive means for driving the rotating shaft of the suspension door and pressing the suspension door with a predetermined pressing force in the closed state of the opening to maintain the closed state, In the state, a lever mechanism is provided for converting the pressing force acting on the hanging door from the driving means into an acting force by which the guide roller of the door end door is pressed against the guide rail. is there. With this, in the closed state, when the suspension door is pressed by the driving force with the pressing force, the guide roller of the door-end door is pressed against the guide rail by the action force that is converted from the pressing force acting on the suspension door by the lever mechanism. It is possible to prevent rattling of the door end door due to the gap existing between the guide roller and the guide rail. Also, by utilizing the pressing force of the drive means that drives the rotary shaft of the hanging door, without the need for a separate device for pressing the guide roller against the guide rail, with a simple structure, always in the open state, The guide roller can be pressed against the guide rail.

[0008] In the second aspect, the first aspect has
The lever mechanism has the hinge on which the pressing force from the driving means acts as a force point, and is provided on each of the hanging door and the door-end door, and the pressing force from the driving means acts on the force point. A pair of fulcrum members that are in contact with each other in a direction orthogonal to the acting direction of the pressing force is used as a fulcrum, and the pressing force acting on the force point is caused by the engagement of the pair of fulcrum members. The guide roller of the door-end door, which is pressed against the guide rail by an action force converted into a couple acting on the side opposite to the direction, is used as an action point. Thus, the existing hinge is used as the force point, the existing guide rail is used as the point of action, and the pressing force from the drive means in the closed state can be obtained by simply providing each door with a pair of fulcrum members serving as fulcrums. The guide roller can be pressed against the guide rail by converting it into a force acting force.

According to a third aspect of the present invention,
It is characterized in that the pair of fulcrum members can be moved toward or away from each other in a direction orthogonal to an acting direction of the pressing force acting on the force point. Accordingly, the pair of fulcrum members can be brought close to or separated from each other to adjust the gap existing between the fulcrum members.

According to a fourth aspect, in addition to the first aspect,
The lever mechanism uses the hinge on which the pressing force from the drive means acts as a force point, and the pressing force from the drive means that acts on the force point causes a fulcrum that comes into contact with the door-end door from the acting direction of the pressing force. While using the member as a fulcrum, the pressing force that acts on the force point is converted into a couple force that acts on the side opposite to the acting direction of the pressing force by the engagement of the fulcrum member and the door-end door. The guide roller of the door end door, which is pressed against the guide rail by the action force, is used as an action point. As a result, the existing hinge is used as the force point, the existing guide rail is used as the point of action, and the pressing force from the drive means in the closed state is provided only by providing the fulcrum member that engages with the door-end door and serves as the fulcrum. The guide roller can be pressed against the guide rail by converting it into a couple of acting forces.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

First Embodiment Hereinafter, a folding automatic door device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1 to 4 of the first embodiment of the present invention, the same reference numerals as those shown in FIGS. 7 and 8 of the prior art have the same structure, and thus the description thereof will be omitted.

In FIGS. 1 and 2, the folding automatic door apparatus 1 of the first embodiment applies the pressing force F by the drive motor 17 when the opening 4 is closed by the folding doors 5, 5. The lever mechanism 20 that converts the force into force and causes the guide rollers 10 and 10 to act on the guide rails 9 and 9 with the acting force F1 is provided between the hanging doors 6 and 6 and the door end doors 11 and 11 of the folding doors 5 and 5. However, for convenience of explanation, the lever mechanism 20 arranged in one of the folding doors 5 will be described below.

The hanging door 6 and the door door 11 of the folding door 5 are a reinforcing member 2 fixed to the upper end side of the frame 13 with a bolt 21.
Two. The suspension door 6 is provided with the reinforcing member 2
2 and the rotary shaft bracket 23 of the rotary shaft 6A, and the hinge 7
Is connected to the lower hinge portion 7A by a bolt 24,
The door-end door 11 includes the reinforcing member 22, the upper hinge portion 7B of the hinge 7, and the roller bracket 2 of the guide roller 10.
5 and a bolt 26. The rotary shaft bracket 23 rotatably supports the rotary shaft 6A, and the roller bracket 25 rotatably supports the guide roller 10 with a gap ΔS between the guide roller 10 and the guide rail 9. The lower hinge portion 7A and the upper hinge portion 7B that form the hinge 7 are formed by stacking circular portions 27A and 27B protruding at a predetermined angle on the outdoor 3 side in the vertical direction as shown in FIG. Bearing 28 and hinge shaft 29 are rotatably connected to each other.

In the lever mechanism 20, when the folding door 5 is in the closed state, the hinge 7 on which the pressing force F when the drive motor 17 presses the hanging door 6 acts as a force point a, and the hanging door 6 and the door end door 11 are used.
The pair of fulcrum members 30 and 35 provided between the two are used as a fulcrum b, and the guide roller 10 of the door end door 11 is used as an action point c. As shown in FIGS. 4A and 4B, each fulcrum member 30, 35 has a lower hinge portion 7 of the hinge 7.
Pin portions 31 and 36 projecting into the space formed between the end surface 7a of A and the end surface 7b of the upper hinge portion 7B, and hinge portions integrally formed by reducing the diameters of the pin portions 31 and 36. Screw holes 32 opened on the end faces 7a, 7b of 7A, 7B,
It is composed of screw parts 33 and 38 screwed into 37. The folding door 5 of the fulcrum member 30, 35 has the opening 4
In the closed state, the tip end surfaces of the pin portions 31 and 36 come into contact with each other and have a function as an action point b of the lever mechanism 40. In this way, each fulcrum member 30 of the lever mechanism 20,
35 is arranged on the upper side of each door 6, 13 which is made relatively strong by the reinforcing members 22, 22. Also, each fulcrum member 3
0 and 35 are, as shown in FIGS. 4 (b) and 4 (c),
Locking screw member 40 screwed into locking screw hole 39 opened in screw holes 32 and 37 formed in each hinge portion 7A, 7B.
The rotation of the pin portions 31 and 36 is regulated, and the gap s between the tip portions of the pin portions 31 and 36 can be adjusted by rotating the screw portions 33 and 38. Has become. Accordingly, by rotating the fulcrum members 30 and 35 and adjusting the gap s existing between the pin portions 31 and 36, the drive motor is closed after the folding door 5 is closed. When the suspension door 6 is pressed by 17, the timing at which the fulcrum members 30, 35 come into contact with each other can be changed, and the hinge 7 as the force point a and the pair of fulcrum members 30, 35 as the fulcrum points b Action force F1 acting on the guide roller 10 serving as the action point c (couple to the pressing force F)
Can be adjusted.

Next, the operation of the folding automatic door apparatus according to the first embodiment of the present invention will be described with reference to FIG. 2. The opening / closing operation of the folding door 5 is the same as that described with reference to FIG. 9 of the prior art. Since it has, the operation after the opening 4 is closed by the folding door 5 will be described.

After the opening 4 is closed by the folding door 5, the drive motor 17 is driven to rotate the rotary shaft 6A of the hanging door 6 in the closing direction B in order to maintain the closed state of the opening 4. Then, the hanging door 6 swings around the rotating shaft 6A toward the outdoor 3 by a predetermined amount. Then, due to the swing of the hanging door 6, the pressing force F toward the outdoor 3 side acts on the hinge 7 that connects the hanging door 6 and the door end door 11, and this pressing force F causes the lever mechanism 20 to move. The door end door 11 is moved in the direction opposite to the rotation direction B of the rotation shaft 6A via the hinge 7 serving as the force point a,
The fulcrum members 30 and 35 rotate while narrowing the gap s between the pin portions 31 and 36. After that, the pin portion 3 of each fulcrum member 30 and 35 is applied by the pressing force F acting on the hinge 7, which is the force point a.
When 1 and 36 are engaged with each other, the fulcrum members 30 and 35 become the action points b of the lever mechanism 20 and the force points a due to this engagement.
The pressing force F acting on the hinge 7 that acts as
It is converted into an action force F1 (a couple force with respect to the pressing force F) that rotationally moves to the side. As a result, each fulcrum member 30,
Since the acting force F1 corresponding to the gap s between the pin portions 31 and 36 of 35 is applied to the guide roller 10 of the door end door 11, the acting force F1 causes the guide roller 10 to move the lever mechanism 20. The point of action b is moved to the room 2 side while absorbing the gap ΔS of the guide rail 9 together with the door end door 11, and finally, the action force F1 is pressed against the guide rail 9. As a result, after the opening 4 is closed by the folding door 5, the driving motor 17 causes the force point a.
The pressing force F continues to be applied to the hinge 7, which is
Always guide the guide roller 10 of the door door 11 to the guide rail 9
Since it can be pressed against the door end door 1 due to the gap ΔS existing between the guide roller 10 and the guide rail 9.
1 play can be prevented. Also, the other folding door 5
Similarly, the lever mechanism 20 is similarly arranged between the hanging door 6 and the door tip door 11. Similarly, the pressing force F due to the pressing of the hanging door 6 is applied to the couple force by the lever mechanism 20. The guide roller 10 of the door-end door 11 is pressed against the guide rail 11 with the converted acting force F1.

Embodiment 2 Hereinafter, a folding automatic door device according to Embodiment 2 of the present invention will be described with reference to FIGS. 5 and 6. 5 and 6 of the second embodiment of the present invention, the same reference numerals as those shown in FIGS. 1 to 4 of the first embodiment and FIGS. 7 and 8 of the prior art have the same structure. The description is omitted.

In FIGS. 5 and 6, the folding automatic door apparatus according to the second embodiment applies the pressing force F by the drive motor 17 when the opening 4 is closed by the folding doors 5, 5. Lever mechanism 1 for converting the guide rollers 10, 11 of 11, 11 into action force F1 for pressing the guide rails 9, 9.
Although the door 20 is arranged so as to be engageable with each of the front doors 11, 11, for convenience of explanation, the lever mechanism 20 arranged in one of the folding doors 5 will be described.

The lever mechanism 120 is provided so that the hinge 7 on which the pressing force F acts when the hanging door 6 is pressed by the drive motor 17 in the closed state of the folding door 5 acts as the force point a and is engageable with the door tip door 11. The fulcrum member 130 is used as a fulcrum b,
The guide roller 10 of FIG.
The fulcrum member 130 is a plate-shaped member that extends from the lower portion toward the floor 12 side without a gap, and is made of rubber or the like protruding toward the fulcrum member 130 on the hinge 7 side of the door door 11. It faces the elastic stopper 135 with a predetermined gap s. In this way, the fulcrum members 130 of the lever mechanism 120 are arranged above the doors 11, 11 which are made relatively strong by the reinforcing members 22, 22.

Next, the operation of the folding automatic door apparatus according to the second embodiment of the present invention will be described with reference to FIG. 6. The opening and closing operation of the folding door 5 is the same as that described with reference to FIG. 9 of the prior art. Since it has, the operation after the opening 4 is closed by the folding door 5 will be described.

After the opening 4 is closed by the folding door 5, the drive motor 17 is driven to rotate the rotating shaft 6A of the hanging door 6 in the closing direction B in order to maintain the closed state of the opening 4. Then, the hanging door 6 swings around the rotating shaft 6A toward the outdoor 3 by a predetermined amount. Then, due to the swing of the hanging door 6, a pressing force F toward the outdoor 3 side acts on the hinge 7 that connects the hanging door 6 and the door end door 11, and this pressing force F causes the lever mechanism 120 to move. The door end door 11 is moved in the direction opposite to the rotation direction B of the rotating shaft 6A via the hinge 7 serving as the force point a, and the fulcrum member 130 and the elastic stopper 135 of the door end door 11 are provided.
It rotates while narrowing the gap s between After that, when the fulcrum member 130 and the elastic stopper 135 are engaged with each other by the pressing force F acting on the hinge 7 which is the force point a, the fulcrum member 130 becomes the action point b of the lever mechanism 120 by this engagement.
The pressing force F acting on the hinge 7, which is the force point a, is an acting force F1 (pressing force F that causes the guide roller 10 and the door end door 11 to rotate toward the room 2 side around the point of action b.
Can be converted into a couple. As a result, the fulcrum member 1
According to the gap s between the 30 and the elastic stopper 135,
Since the acting force F1 is applied to the guide roller 10 of the front door 11, the acting force F1 causes the guide roller 10 to move.
Is rotationally moved to the room 2 side while absorbing the gap ΔS of the guide rail 9 together with the door end door 11 around the point of action b of the lever mechanism 120, and finally is pressed against the guide rail 9 with this acting force F1 To be As a result, after the opening 4 is closed by the folding door 5, the pressing force F is continuously applied to the hinge 7, which is the force point a, by the drive motor 17, and the pressing force F is applied to this couple force by the lever mechanism 120. Since the converted action force F1 can always press the guide roller 10 of the door door 11 against the guide rail 9, the backlash of the door door 11 due to the gap ΔS existing between the guide roller 10 and the guide rail 9 is generated. It can prevent sticking. Further, the lever mechanism 120 is also arranged on the other folding door 5 so as to face the door tip door 11 in the same manner, and similarly, the lever mechanism 120 applies the pressing force F due to the pressing of the hanging door 6. The guide roller 1 of the front door 11 having the acting force F1 converted into force
0 is pressed against the Gyrorail 11.

Incidentally, the first and second embodiments of the present invention.
In the above description, the lever mechanism 20, 120 is arranged on the relatively strong upper side of the hanging doors 6, 6 and the door end doors 11, 11, but the invention is not limited to this. Alternatively, the suspension doors 6 and 6 and the door-end doors 11 and 11 may be arranged on the hinge 7 side connecting the lower doors 11 and 11, respectively.

[0023]

As described above, according to the folding automatic door apparatus of the present invention, in claim 1, when the suspension door is pushed by the pressing force by the driving means in the closed state, the lever mechanism acts on the suspension door. Since the guide roller of the door-end door is pressed against the guide rail by the action force converted from the pressing force, it is possible to prevent rattling of the door-end door due to the gap existing between the guide roller and the guide rail, and also to prevent noise. . Also, by utilizing the pressing force of the drive means that drives the rotary shaft of the hanging door, without the need for a separate device for pressing the guide roller against the guide rail, with a simple structure, always in the open state, The guide roller can be pressed against the guide rail.

According to claim 2, in addition to the effect of claim 1,
The existing hinge is used as the force point, the existing guide rail is used as the point of action, and a pair of fulcrum members serving as fulcrums are provided on each door. Since the guide roller can be pressed against the guide rail by converting it into an acting force, it is possible to prevent rattling of the door end door due to a gap existing between the guide roller and the guide rail with a simple structure.

According to claim 3, in addition to the effect of claim 2,
By arranging the pair of fulcrum members close to or apart from each other,
By adjusting the gap that exists between each fulcrum member,
When the suspension door is pressed by the drive means in the closed state, the timing of engagement of the pair of fulcrum members is changed so that the hinge serving as the force point and the pair of fulcrum members serving as the fulcrum guide the guide roller serving as the action point. Since the acting force on the rail can be adjusted, it becomes possible to prevent an excessive load from acting on the guide roller and the guide rail.

In the fourth aspect, in addition to the effect of the first aspect,
With the existing hinge as the force point, the existing guide rail as the point of action, and by only providing the fulcrum member that engages with the door end door and serves as the fulcrum, the pressing force from the drive means in the closed state can be used as the couple force. Since the guide roller can be pressed against the guide rail after being converted into the acting force, it is possible to prevent the back door from rattling due to a gap existing between the guide roller and the guide rail with a simple structure.

[Brief description of the drawings]

FIG. 1 is an enlarged front view of essential parts showing the structure of a folding automatic door device according to a first exemplary embodiment of the present invention.

FIG. 2 is a view taken along the line AA of FIG. 1 showing the structure of the folding automatic door device according to the first exemplary embodiment of the present invention.

FIG. 3 is an enlarged view of a main part showing a configuration of a hinge used in the folding automatic door device according to the first exemplary embodiment of the present invention.

4A and 4B are diagrams showing a configuration of a pair of fulcrum members of a lever mechanism used in the folding automatic door apparatus according to Embodiment 1 of the present invention, in which FIG. 4A is an enlarged top view and FIG. 4B is an enlarged front view. (C) is a side enlarged view.

FIG. 5 is an enlarged side view of an essential part showing the structure of the folding automatic door device according to the second exemplary embodiment of the present invention.

FIG. 6 is an enlarged top view of an essential part showing the structure of the folding automatic door device according to the second exemplary embodiment of the present invention.

FIG. 7 is a front view showing a structure of a folding automatic door device according to a conventional technique.

FIG. 8 is a BB arrow view in FIG. 7 showing a structure of a folding automatic door device in the related art.

FIG. 9 is a top view showing an opening / closing operation of a folding automatic door device according to a conventional technique.

[Explanation of symbols]

 1 Folding Automatic Door Device 4 Opening 5 Folding Door 6 Suspended Door 7 Hinge 9 Guide Rail 10 Guide Roller 11 Guide Roller 11 Door Tip Door 17 Drive Motor (Drive Means) 20, 120 Lever Mechanism 30, 35 Pair of Supporting Members 130 Supporting Members

Claims (4)

[Claims] 1. A hanging door that swings around a rotation axis,
A door end door that is foldably connected to the hanging base door via a hinge and has a guide roller at the upper end, and the guide roller that is provided over the opening that is opened and closed by the hanging base door and the door end door. A guide rail to be inserted, and a drive means for driving the rotary shaft of the suspension door and pressing the suspension door with a predetermined pressing force in the closed state of the opening to hold the closed state. In the folding automatic door device, a lever mechanism for converting the pressing force applied from the drive means to the suspension door in the closed state into an acting force such that the guide roller of the door-end door is pressed against the guide rail. A folding automatic door device characterized by being provided. 2. The lever mechanism, wherein the hinge on which the pressing force from the driving means acts acts as a force point, is provided on each of the hanging door and the door tip door, and the driving means acts on the force point. With a pressing force from, with a pair of fulcrum members abutting against each other from a direction orthogonal to the action direction of the pressing force as a fulcrum, the pressing force acting on the force point, by the engagement of the pair of fulcrum members. The guide roller of the door-end door, which is pressed against the guide rail by an action force that is converted to a couple force acting on the side opposite to the action direction of the pressing force, is configured as an action point. Item 1. The folding automatic door device according to item 1. 3. The folding according to claim 2, wherein the pair of fulcrum members can be moved toward or away from each other in a direction orthogonal to an acting direction of the pressing force acting on the force point. Automatic door device. 4. The lever mechanism uses, as a force point, the hinge on which the pressing force from the drive means acts, and the pressing force from the drive means that acts on the force point causes the door tip to move from the acting direction of the pressing force. A fulcrum member that abuts the door is used as a fulcrum, and the pressing force that acts on the force point acts on the opposite side of the pressing force acting direction by the engagement of the fulcrum member and the door-end door. The folding automatic door device according to claim 1, wherein a guide roller of the door-end door that is pressed against the guide rail by an action force converted into a force is used as an action point.