JPH0355750Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial application field This invention relates to a door opening/closing device. Specifically, the movable door is normally opened and closed by sliding it toward the fixed door, and in an emergency, the movable door and the fixed door are opened and closed. They rotate together to double the width of the frontage.

Conventional technology Conventionally, movable doors and fixed doors were used in this type of emergency.
Doors that can be rotated 90 degrees to open the entire opening are generally fixed metal fittings that can be attached or removed from either the left or right side of the door to the upper and lower fixed frames (open or running hangers, flooring, etc.) At the same time, the other side is rotatably attached to the shaft, and when rotating, the door is released from the fixed frame by unlocking the fixing metal fittings, and the door can be rotated about the support shaft on the other side. There is. The above-mentioned fixing fittings are provided with a vertical lock pin on the door side biased by a spring, and a lock hole on the fixed frame side, and the lock pin is engaged with the lock hole to lock the door so that it cannot rotate. In many cases, the lock is engaged and disengaged by operating the locking means in the vertical direction, such as by pushing with strong force to disengage the lock pin from the lock hole to release the lock. When the fixing fitting has the above structure, there are disadvantages in that the door is constantly pushed up by the spring, and the locking mechanism cannot be easily adjusted because it has to be adjusted in the vertical direction. As described above, the conventionally provided doors are not easy to install and adjust, have a complicated structure and are expensive, and are easy to rotate, especially if they are easily rotated from the outside. Problems such as the above problem arose.

Purpose of the invention This invention aims to solve the above-mentioned conventional problems, by improving the fixing metal fittings that removably connect the door and the fixed frame, and preventing the upward load from being applied to the door. In addition to making it easy to adjust the door even after it is installed, it also prevents the door from being easily unlocked and rotated.In particular, it prevents crime by preventing the door from being unlocked and rotating even when pressed with strong force from the outside. The purpose of this is to solve the above problems.

Structure and operation of the invention This invention was made to achieve the above-mentioned purpose, and in a door opening/closing device such as an automatic door, the tip of the movable door is installed in the doorway through a traveling hanger and a fixed metal fitting. The movable door is fixed to a support shaft that is removably fixed to the hanger and rotatably supported by the hanger, and is particularly characterized by improved fixing fittings on the door edge side. That is,
A stopper pin is provided on the upper end surface of the movable door on the door end side, which is biased laterally by a spring and has an adjustment screw on the door end side to adjust the biasing force, and is bent into a trapezoid shape on the side of the stopper pin. The door support base with the hanger engagement part is fixed, while the first
A horizontal outward engaging part is formed on the lower side of the traveling hanger, and a horizontal locking hole is formed, and the outward engaging part of the hanger is inserted from the inside into the hanger engaging part of the door support base and lifted. At the same time,
A device is provided for fixing the door end side of the movable door to the first hanger by engaging the stopper pin in the lock hole of the hanger with a spring bias, and furthermore, the other end of the movable door is fixed to the second hanger. It is fixed to a support shaft that is rotatably attached to the travel hanger, and a pair of rotation prevention plates are suspended from the outside of the closed position of the movable door. With the above structure, the load of the door is supported by the outward engaging part of the hanger that engages with the metal fittings, so that the engagement is not easily disengaged, and the spring force that biases the stopper pin can be adjusted from the door edge side. Adjustments can be made with screws, so that adjustments can be made easily even after the door is installed.Furthermore, even if pushed from the outside, the hanger engaging part of the metal fitting will come into contact with the vertical part of the hanger, making it impossible to remove it. In addition to preventing rotation,
A door rotation prevention plate that prevents the movable door from rotating to the outside when the movable door is in the closed position is hung from the door so that the movable door can rotate from the inside to the outside only when the movable door is slid to the fixed door side and overlapped. This is to prevent the movable door from rotating easily.

Embodiments Hereinafter, this invention will be explained in detail with reference to embodiments shown in the drawings.

In the figure, 1 is a fixed door and 2 is a movable door. The fixed door 1 is placed on the outside and the movable door 2 is placed on the inside. Slide the movable door 2 in the direction of the arrow and move it to the inside of the fixed door 1. Open 1/2 of the entire opening M by stacking them,
It closes by sliding in the opposite direction.

A blind 50 is fixed to the upper part of the opening M, and first and second hangers 7, 8 are connected to pulleys 13, 13 running on the upper rail 12 installed in the blind 50.
The movable door 2 is suspended from the lower ends of the hangers 7 and 8 via a fixing device which will be described later. The pulleys 13, 13 are connected to a belt 6 wrapped around each pulley of a motor reducer 3 and an idler 4 installed in a blind 50, and the pulleys 13, 13 are moved in the opening direction or The movable door 2 is moved in the closing direction, and the movable door 2 is slid in the opening and closing direction via the hangers 7 and 8. The above mumu 5
A control box 5 for controlling the motor reducer 3 is installed inside the door 0, and when a passerby is located near the movable door 2, a detector (not shown) detects it and sends a signal to the control box 5. , the motor is driven under control from the control box 5 to slide the movable door 2 in the opening direction, and when the passerby leaves, the motor is reversely rotated to slide the movable door 2 in the closing direction. opens and closes automatically.

On the other hand, in case of an emergency, after sliding the movable door 2 toward the fixed door 1 side so that they overlap inside, the second
As shown by the chain line in the figure, the door end side of the movable door 2 is separated from the hangers 7 and 8, and is rotated outward using the connecting portion with the hanger 7 as a fulcrum. Simultaneously with the rotation of the movable door 2, the fixed door 1 also releases the lock of the fixing device 11 that fixes the door end side and the blind 50, and separates from the blind 50, and the blind on the opening wall side. 50 and the fixed door 1 are rotated outward using pivot hinges 9 and 10 as fulcrums,
The entire opening M is opened to make the opening approximately twice as large as the sliding opening.

Next, a device for fixing the movable door 2 and the hangers 7, 8 will be explained.

The upper frame 20 of the movable door 2 has a recess 20a with an upper opening on the door edge side, and a cutout 20b for inserting a hanger is cut out on the inner surface of the recess 20a. The seat plate 14 is installed on the bottom surface 20c of the recess, and the door support 2
1 is fixed to the bottom surface 20c and the seat plate 14 via bolts 22, 22, and is installed in the recess 20a. As shown in FIG. 5, the door support stand 21 has a hanger engaging part 21a bent in a trapezoid shape at the center in the left and right lateral directions, and bolts are attached to left and right side parts 21b and 21c of the hanger engaging part 21a. A hole is made and the bolts 22, 22 are passed through the hole and fixed to the movable door 2.
A pin case 23 is fixed to the upper surface of the left side portion 21b on the door edge side. A stopper pin 26 is slidably fitted into the pin case 23, and its pin portion 26a protrudes from a hole drilled in the case 23 toward the hanger engaging portion.
After inserting the spring 25 into the back of the door, the adjustment screw 24 is screwed in from the opening on the door edge side, the spring 25 biases the stopper pin 26, and the biasing force on the stopper pin 26 can be adjusted by the screwing amount of the adjustment screw 24. There is.

The hanger 8 to be fixed to the door support stand 21 has its lower side shaped like an outward L-shape as shown in the figure, forming a horizontal outward engaging part 8a, and the engaging part 8a is supported by the notch 20b. Hanger engaging portion 21 of stand 21
a, and is engaged with the hanger engaging portion 21a in a suspended state. Further, a lock part 8b is formed on the side of the engaging part 8a to be inserted between the outer surface of the hanger engaging part 21a and the pin case 23, and a V-shaped lock hole 8c is formed in the side surface of the lock part 8b. A pin portion 26a of the stopper pin 26 is fitted into the lock hole 8c to lock the hanger 8 and the door support base 21 so that they cannot be separated.

Furthermore, as shown in FIG. 6, the device for fixing the movable door 2 and the hanger 7 is such that the hanger 7 has an L-shape and a fixed bearing 30 is fixed to the lower horizontal part of the hanger 7.
A support shaft 31 is rotatably attached to the 0. On the other hand, a recess 20e is formed in the upper frame 20 of the movable door 2,
A seat plate 16 is arranged on the bottom surface 20f of the recess 20e,
A door support stand 60 integrated with the support shaft 31 is fixed to the bottom surface 21f and the washer 16 with bolts 61, and the movable door 2 is rotatably attached to the hanger 7 together with the support shaft 31.

At the lower end of the movable door on the same axis as the support shaft 31, a support shaft 36 is fixed downwardly to the lower frame 33 of the movable door 2, and a guide roller 34 is attached to the lower end of the support shaft 36. The guide roller 34 is connected to the floor side rail 35
When sliding, the guide roller 34 slides within the guide groove 35a, and when rotating, it rotates within the guide groove 35a.

By fixing the movable door 2 to the hangers 7 and 8 via the above-mentioned fixing device, when rotating the movable door 2 in an emergency, if the door end side of the movable door 2 is pushed with a stronger force than the inside side, the stopper pin 26 is spring 25
It retreats into the pin case 23 against the force and comes out of the lock hole 8c of the hanger 8, the lock is released, and the door support base 21 and the hanger 8 can be separated. Further, when pushed with a strong force, the door support 21 moves outward and the hanger engaging portion 21a engages with the engaging portion 8a of the hanger 8.
Then, the movable door 2 rotates outward. At this time,
Support shaft 3 fixed to movable door 2 on the hanger 7 side on the other side
1 rotates, the lower guide roller 34 rotates within the guide groove 35a, and becomes the rotation axis of the movable door 2. When the movable door 2 is pushed inward from the outside,
The inner surface of the hanger engaging part 21a of the door support base 21 contacts the vertical part 8d of the hanger 8 and cannot be separated from the hanger 8, so it cannot be rotated from the outside.

In addition, since the movable door 2 can only be rotated when it is slid toward the fixed door 1 and placed in the open position, a pair of left and right rotation prevention plates 18A and 18B are provided outside the closed position of the movable door 2. It is suspended from the 50th point. Therefore, even if an attempt is made to rotate the movable door 2 by pushing it in the closed position, the rotation prevention plates 18A, 1
The upper part of the movable door 2 is in contact with 8B and cannot be rotated.

Next, a fixing device for fixing the fixed door 1, the blind 50, and the flooring material will be explained.

A fixing device 11 is installed on the movable door side of the fixed door upper frame 40, and is detachably fixed to the blind 50 via the fixing device 11. That is, the recess 40 is formed in the upper frame 40.
A mounting base 41 is fixed to the bottom surface of the recess 40a, and a pair of bearings 42 protruding upward is provided on the mounting base 41. A pin 43 is attached to the bearing portion 42.
A lower portion of one side of the rotating plate 44 is rotatably attached through the rotary plate 44, and a torsion spring 49 is interposed between the rotating plate 44 and the bearing portion 42 to bias the other side of the rotating plate 44 upward. . A fixing pin 46 is connected to the other side of the rotary plate 44 via a plate 45, a lock pin 47 is provided at the upper end of the fixing pin 46, and the lock pin 47 is biased by the torsion spring 49 to be pushed away from the upper frame 40. It stands out. Also,
A rubber pusher 48 is protruded from the upper part of the rotary plate 44 on the shaft support side, and the pusher 48 slightly protrudes from a notch 40b cut out inside the upper frame 40. When the pressing member 48 is pressed, the rotary plate 44 rotates, and the fixing pin mounting side moves downward against the torsion spring 49. On the other hand, a lock plate 51 is fixed to a portion of the blind 50 facing the fixing device 11, and lock holes 51a and 50a into which the lock pin 47 is inserted are bored in the lock plate 51 and the blind 50, and the lock holes 51a and 50a are protruded. The locked pin 47 is fitted into the lock holes 50a, 51a and locked, and the lock is released when the lock pin 47 is lowered.

In addition, there is a fixed door 1 at the lower end of the fixed door on the moving door side.
A recess 54 with a bottom opening is formed in the lower frame 55, a pin case 56 is fixed downward to the bottom of the recess 54, and a lock pin 57 is biased downward by a spring (not shown) inside the pin case 56. The lock pin 57 is projected downward from the pin case 56 and is fitted into a lock hole 59 drilled in the floor material 58. Therefore, when you press the fixed door 1, the lock pin 5
7 rises against the spring and can be removed from the lock hole 59. In addition, the above fixed door 1
The locking mechanism provided at the lower end may be the same mechanism as the fixing device 11 provided at the upper side. Further, it is not necessarily necessary to provide a locking device, and only the upper fixing device 11 is sufficient.

The opening wall side on the other side of the fixed door 1 is rotatably connected to a blind 50 and a floor material 58 via pivot hinges 9 and 10.

The fixed door 2 fixed to the blind 50 via the fixing device 11 as described above is unlocked from the blind and becomes rotatable only when the pusher 48 is pressed from the inside, so that it can be rotated from the outside. Can't rotate.

Next, the operation of the movable door 2 and the fixed door 1 in an emergency will be explained.

When an emergency signal is issued, the motor rotates under the control of the control box 5 and moves the moving door 2.
Slide the movable door 2 to the fixed door 1 side, and move the movable door 2 to the fixed door 1 side.
It becomes a released state that overlaps inside the . In this state, if you forcefully press the door end side of the inner movable door 2 toward the outside,
The lock between the hanger 8 and the movable door 2 is released, and the movable door 2
rotates outward, as shown in Figure 10.
It rotates away from the engaging portion 8a of the hanger 8. As the movable door 2 rotates, the pusher member 48 of the fixed door 1 is pushed by the movable door 2, the lock of the fixing device 11 is released as shown in FIG. 11, and the fixed door 1 rotates together with the movable door 2. By rotating these doors 1 and 2 by 90 degrees, the entire opening M is opened.

It goes without saying that the movable door 2 can be opened and closed manually with the power turned off. In that case, even in an emergency, first open the movable door 2 to the release position, then press it forcefully from inside, and the movable door 2 and the fixed door will open.
and can be rotated at the same time.

This invention is not limited to the above embodiment, and the fixed door 1
A fixing device 11 is placed close to the movable door side, and the press member 48 is installed so that it is hidden in a position overlapping the movable door even in the movable door closed position, and the movable door 2 is rotated and pushed by the movable door. The pusher member 48 may be pushed only when the door is pressed, and the fixed door may be made rotatable.

Further, as shown in FIG. 12, a locking hole 8c is formed in the engaging part 8a of the hanger 8 to fix the movable door 2 and the hanger 8.
The engaging portion 8a is inserted through the pin hole drilled in 1a.
Alternatively, the locking hole 8c may be directly engaged with the locking hole 8c.

The above embodiment was implemented with two doors each consisting of one movable door and one fixed door, but as shown in FIGS. 13 and 14, fixed doors 1A and 1
B can be similarly applied to a four-panel door in which movable doors 2A and 2B are arranged in the center and the movable doors are slid to both sides to open. Note that each member of the four-door embodiment is given the same reference numeral, and a description thereof will be omitted.

Effects As is clear from the above explanation, according to the door opening/closing device of this invention, in the fixing device between the movable door and the traveling hanger, the locking pin is biased in the lateral direction. Since no vertical load is applied to the door, and the biasing force of the pin can be adjusted with an adjustment screw installed laterally on the door edge, it can be easily adjusted even after the door is installed. In addition, the engaging part of the hanger engages with the engaging part of the door support base in a suspended state and supports the load of the door, so it will not easily become unlocked even if a weak force such as wind is applied. Only when the door is pressed with very strong force will it be unlocked and can be rotated. Furthermore, since the lock will not be released even if the door is pushed from the outside, it has various effects such as no problem in terms of crime prevention.

[Brief explanation of the drawing]

Fig. 1 is a front view of the entire door showing one embodiment of this invention, Fig. 2 is a top view of Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a cross-sectional view of Fig. 3. Figure 5 is an enlarged view of the main parts, Figure 5 is a perspective view of the door support, Figure 6 is a sectional view taken along the line - - in Figure 2, Figure 7 is an enlarged view of the main parts in Figure 6, and Figure 8 is the same as in Figure 7. 9 is a right side view of FIG. 1, FIG. 10 is a schematic diagram showing the operation of the movable door when it rotates, FIG. 11 is a drawing showing the operation of releasing the locking device 11, and FIG. FIG. 13 is a cross-sectional view showing a modified example of a fixing device for a movable door and a hanger; FIG.
FIG. 4 is a top view of FIG. 13. 1... Fixed door, 2... Movable door, 7, 8... Travel hanger, 8a... Engagement part, 8c... Lock hole,
9, 10...Pivot hinge, 11...Fixing device, 21...Door support base, 21a...Hanger engaging portion, 24...Adjustment screw, 25...Spring, 26...
Stotupapin.

Claims (1)

[Scope of Claim for Utility Model Registration] In normal times, the movable door slides to open and close the opening, and in an emergency, the movable door slides toward the fixed door and rotates together with the fixed door to widen the opening. In the device, a stopper pin is provided on the upper end surface of the movable door on the door end side, which is biased laterally by a spring, and has an adjustment screw on the door end side to adjust the biasing force, and a platform-shaped stopper pin is provided on the side of the stopper pin. A door support with a bent hanger engaging part is fixed, while a horizontal outward engaging part is formed on the lower side of a first traveling hanger which is installed for no purpose, and a horizontal locking hole is formed. Insert the outward engaging part of the hanger into the hanger engaging part of the door support from the inside and engage it in a suspended state, and also engage the stopper pin in the lock hole of the hanger by urging it with a spring. A device is provided for fixing the door end side of the movable door to the first hanger, and further,
The other end of the movable door is fixed to a support shaft rotatably attached to the second traveling hanger, and a pair of anti-rotation plates are suspended from the outside of the closed position of the movable door. Features a door opening/closing device.