Automatic door system

Abstract

To provide an automatic door system capable of suppressing interference between a passer-by from the opening side and the opening door to maintain smooth passage of that passerby.SOLUTION: An automatic door system 10 includes gate poles installed on the opening side of opening doors 11a, 11b to restrict passage along a wall 12, and a control device 15 that controls an operation of the opening doors 11a, 11b. The gate poles are then equipped with a signal transmitter, and the control unit 15 operates the opening doors 11a, 11b based on signals transmitted from the signal transmitter. This configuration makes it possible for the signal transmitters on the gate poles to be installed at a sufficient distance from the opening doors 11a, 11b, so that a passer-by 30 who have caused the signal transmitter to transmit the signal can be prevented from coming into contact with the opening doors 11a, 11b under opening movement, allowing the passer-by 30 to smoothly pass through the opening doors 11a, 11b.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an automatic door system. More specifically, the present invention relates to an automatic door system that automatically operates a hinged door.

Background Art

[0002] Doors provided at entrances and exits in movie theaters, theaters, etc. are often hinged doors. This is because the system including the door needs to have a predetermined level of sound insulation function and fire prevention function, and it is structurally difficult for a sliding door to have these sound insulation function and fire prevention function. Regarding these hinged doors, Patent Document 1 discloses a hinged door that operates automatically (see FIG. 6 of Patent Document 1). In this Patent Document 1, the entire detection area of the area sensor is divided into a plurality of small detection areas. And when the hinged door stops in any of these detection areas, it is confirmed by detection by the small detection areas where this hinged door is located.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the hinged door is an automatic door, there is a problem that interference occurs between the hinged door and the passerby of the hinged door on the opening side of the hinged door. Specifically, the interference will be described with reference to FIGS. 6 and 7. FIGS. 6 and 7 are perspective views of a conventional automatic door system for a hinged door as viewed obliquely from above.

[0005] As shown in Figure 6, in the automatic door system 50 with hinged doors, when the area sensor 53 opens the hinged doors 51a and 51b, a passerby 54 needs to approach the hinged doors 51a and 51b in order for the area sensor 53 to work. However, if the passerby 54 gets too close to the hinged doors 51a and 51b, there is a problem that they may come into contact with the hinged doors 51a and 51b as they open. For this reason, the passerby 54 has to wait at a certain distance for the hinged doors 51a and 51b to open, which prevents the passerby 54 from passing through smoothly. Furthermore, in the automatic door system 50, when the area sensor 53 opens the hinged doors 51a and 51b, there is a problem that the area sensor 53 may work on a pedestrian walking along the wall on which the automatic door system 50 is installed, rather than passing through the automatic door system 50, causing the hinged doors 51a and 51b to open and potentially causing contact between the pedestrian and the hinged doors 51a and 51b. Furthermore, as shown in Figure 7, in areas with a high volume of pedestrian traffic, the automatic door system 50 for hinged doors may have push-button switches 55 installed on the wall 52 or on the hinged doors 51a and 51b, and these push-button switches 55 may be used to open the hinged doors. However, even in this case, pedestrians 54 need to approach the hinged doors 51a and 51b to press the push-button switches 55, and there is a problem that the hinged doors 51a and 51b that are opening may come into contact with the pedestrians 54 at that time.

[0006] In view of the above circumstances, the present invention aims to provide an automatic door system that can suppress interference between pedestrians passing from the opening side and the hinged door, and maintain the smooth passage of such pedestrians. [Means for solving the problem]

[0007] The first automatic door system is an automatic door system that includes a hinged door that is installed in a wall and opens and closes automatically, and includes a gate pole installed on the opening side of the hinged door for restricting passage along the wall on the opening side, and a control device for controlling the operation of the hinged door, wherein the gate pole is provided with a signal transmitting device, and the control device opens the hinged door based on a signal transmitted from the signal transmitting device. The automatic door system of the second invention is characterized in that, in the first invention, the signal transmitting device is a switch provided on the gate pole. The automatic door system of the third invention is characterized in that, in the first invention, the signal transmitting device includes a detection device provided on the gate pole for detecting a person passing through the swing door. The automatic door system of the fourth invention is characterized in that, in the first invention, the hinged door is a fire door. The automatic door system of the fifth invention is characterized in that, in the first invention, it is provided on the hinged door and includes a first area sensor for detecting an object in a predetermined space, and the control device stops or reverses the operation of the hinged door when the first area sensor detects an object. The automatic door system of the sixth invention is characterized in that, in the first invention, it is provided with a second area sensor on the wall on the closing side of the hinged door for detecting an object in a predetermined space, and the control device performs an opening operation of the hinged door when the second area sensor detects an object. The automatic door system of the seventh invention is characterized in that, in the second invention, the switch is configured to attract the attention of passersby of the hinged door with light. [Effects of the Invention]

[0008] According to the first invention, by providing a gate pole on the opening side of the hinged door, passage along the wall can be restricted, preventing the hinged door from opening accidentally. Furthermore, since the hinged door is opened by a signal transmitted from a signal transmitting device provided on the gate pole, the signal transmitting device on the gate pole can be placed at a position sufficiently far from the hinged door. This prevents passersby who transmit a signal from the signal transmitting device from coming into contact with the hinged door as it opens, allowing passersby to pass through the hinged door smoothly. According to the second invention, by having the signal transmitting device be a switch installed on the gate pole, the automatic door system can be configured simply and the cost of the automatic door system can be reduced. According to the third invention, the signal transmitting device is installed on the gate pole and includes a detection device that detects pedestrians passing through the hinged door. This eliminates the need for pedestrians to perform actions necessary solely for opening the hinged door, allowing pedestrians to pass through the hinged door more smoothly. According to the fourth invention, since the hinged door is a fire door, it is possible to prevent passersby from coming into contact with the heavy hinged door having a predetermined structure, thereby preventing passersby from accidentally coming into contact with the hinged door, and thus reducing the chances of those who come into contact with it getting injured. According to the fifth invention, a first area sensor is provided on the hinged door, and when the first area sensor detects an object, the control device stops or reverses the movement of the hinged door, thereby preventing the hinged door from colliding with a passerby and providing a safe automatic door system. According to the sixth invention, a second area sensor is provided on the wall on the closing side of the hinged door, and the control device opens the hinged door when the second area sensor detects an object. Since the hinged door does not come towards the closing side due to its structure, the hinged door can be controlled with a simple configuration, and the manufacturing cost of the system can be reduced. According to the seventh invention, the switch installed on the gate pole is configured to attract the attention of passersby through the swinging door with light, so that even if the switch is located some distance from the swinging door, the switch for opening the door can be easily recognized. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view from diagonally above of the automatic door system according to the first embodiment of the present invention. [Figure 2] Figure 1 is a perspective view of the gate pole that makes up the automatic door system, taken from an oblique upward direction. [Figure 3] Figure 1 is a block diagram of the automatic door system. [Figure 4] Figure 1 is a control flow diagram of the automatic door system. [Figure 5] This is a perspective view from diagonally above of a gate pole constituting an automatic door system according to the second embodiment of the present invention. [Figure 6] This is a perspective view of the conventional first automatic door system, taken from a diagonal upward direction. [Figure 7] This is a perspective view of a conventional second automatic door system, taken from a diagonal upward angle. [Modes for carrying out the invention]

[0010] Next, embodiments of the present invention will be described based on the drawings. However, the embodiments shown below are illustrative examples of automatic door systems for realizing the technical concept of the present invention, and the present invention does not limit automatic door systems to those shown below. Note that the size or positional relationships of the components shown in each drawing may be exaggerated for clarity of explanation.

[0011] (First Embodiment) Figure 1 shows a perspective view from diagonally above of an automatic door system 10 according to the first embodiment of the present invention. The automatic door system 10 according to this embodiment has hinged doors 11a and 11b that are installed on a wall 12 and open and close automatically. The hinged doors 11a and 11b are so-called double doors and open and close toward the front in Figure 1, as indicated by the dashed arrows on the floor surface in Figure 1. The hinged doors 11a and 11b open and close around the hinges using a plurality of hinges. The hinged doors 11a and 11b are automatic doors, and their opening and closing is performed by an electric motor. In the automatic door system 10 according to this embodiment, the opening and closing direction of the hinged doors 11a and 11b is depicted as being in one direction toward the front as shown in Figure 1, but depending on the hinge structure, a structure that allows opening and closing not only toward the front but also toward the back in Figure 1 can be adopted. Furthermore, although Figure 1 discloses a structure with two doors in the form of hinged doors 11a and 11b, the present invention is not limited to this and a structure with one door is also included in the automatic door system 10 of the present invention.

[0012] In this embodiment, the automatic door system 10 may have fire doors 11a and 11b. Fire doors, commonly referred to as fire doors, fall under the category of specified fire-resistant equipment under the Building Standards Act, and are required to be "made of iron with a steel plate thickness of 1.5 mm or more" (Building Notification No. 1369 of 2000). When the hinged doors 11a and 11b are fire doors, they become very heavy, and compared to ordinary doors, the likelihood of a passerby 30 being injured if they come into contact with them is higher. By having the hinged doors 11a and 11b be fire doors, it is possible to suppress contact between the heavy hinged doors 11a and 11b, which have a predetermined structure, and the passerby 30, thus suppressing the chance of the passerby 30 accidentally coming into contact with the hinged doors 11a and 11b, and thus reducing the opportunity for the person to be injured.

[0013] The automatic door system 10 according to this embodiment has gate poles provided on the opening sides of the hinged doors 11a and 11b. The opening side refers to the side where the hinged doors 11a and 11b open with respect to the wall 12. In FIG. 1, the front side of FIG. 1 corresponds to this. This gate pole is a pole for constituting a gate and is provided to restrict the passage of pedestrians walking along the wall 12 and the like.

[0014] In this embodiment, facing the hinged doors 11a and 11b, a first gate pole 20 and a second gate pole 21 are provided on the left side of the hinged door 11a, and a third gate pole 22 and a fourth gate pole 23 are provided on the right side of the hinged door 11b. And between the first gate pole 20 and the second gate pole 21, between the second gate pole 21 and the wall 12, between the third gate pole 22 and the fourth gate pole 23, and between the fourth gate pole 23 and the wall 12, passage prevention members 14 are provided respectively. In this embodiment, this passage prevention member 14 is a string-like member provided with a communication line inside. However, the passage prevention member 14 is not limited to this string-like member. For example, it may be a plastic cylindrical member, or in the case where no communication line is used, it may be a chain.

[0015] By providing gate poles on the opening sides of the hinged doors 11a and 11b, the passage along the wall 12 can be restricted, and the hinged doors 11a and 11b can be prevented from accidentally performing an opening operation.

[0016] Also, in this embodiment, first area sensors 16 for detecting an object within a predetermined space are provided on the hinged doors 11a and 11b respectively. This first area sensor 16 is provided at a relatively upper part of the hinged doors 11a and 11b, and an area where the sensor operates along the surface of the hinged doors 11a and 11b is provided from that point. In this embodiment, when this first area sensor 16 detects an object, the hinged doors 11a and 11b are controlled to stop their operation or to perform a reverse operation.

[0017] FIG. 2 shows a perspective view of the first gate pole 20 that constitutes the automatic door system 10 according to the present embodiment, as viewed obliquely from above. The first gate pole 20 includes a pole portion 25 having a vertically long rectangular shape, a base portion 27 that supports the pole portion 25, and a switch 26 provided at the uppermost part of the pole portion 25. This switch 26 is one of the signal transmitting devices. Further, the first gate pole 20 is coupled with a passage prevention member 14 that is a string-shaped member. The switch 26 is used to perform the opening operation of the opening doors 11 and 11b. In the present embodiment, the switch 26 is a proximity sensor and can be operated non-contact. However, the switch 26 is not limited thereto. For example, a push button switch is also acceptable.

[0018] Also, in the present embodiment, the surface of the switch 26 has a black circle at the center and a portion that glows red concentrically therewith, and is configured to attract the attention of the passerby 30 of the opening doors 11a and 11b by light. However, the surface of the switch 26 is not limited thereto. For example, it is also possible to blink the glowing portion, light up a shape of two triangles with vertices facing both sides as used in an elevator, or light up the character "open" in Chinese characters, to attract the attention of the passerby 30 of the opening doors 11a and 11b by light.

[0019] Since the switch 26 provided on the gate pole is configured to attract the attention of the passerby 30 of the opening doors 11a and 11b by light, even when the switch 26 is at a position away from the opening doors 11a and 11b, the switch 26 for the opening operation can be easily recognized.

[0020] As shown in Figure 2, the configuration of the first gate pole 20 in this embodiment has been described above, but the third gate pole 22, which is installed on either side of the hinged doors 11a and 11b, has the same configuration as the first gate pole 20. Furthermore, although the second gate pole 21 and the fourth gate pole 23 are not provided with switches 26 in this embodiment, the configuration is not limited to providing one gate pole with a switch 26 on each side of the hinged doors 11a and 11b. For example, it is also possible to provide two gate poles with switches 26 on each side.

[0021] Furthermore, in this embodiment, the communication line for the switch 26 provided on the first gate pole 20 is provided within the passage prevention member 14, but this is not limited to this. For example, a battery can be provided inside the first gate pole 20, and the signal from the switch 26 can be transmitted using power from this battery.

[0022] (Control configuration of automatic door system 10) Figure 3 shows a block diagram of the automatic door system 10 according to this embodiment. The automatic door system 10 according to this embodiment has a control device 15 for controlling the operation of the hinged doors 11a and 11b. In Figure 3, the devices that mainly transmit signals to the control device 15 are shown on the left, and the devices that mainly receive signals from the control device 15 are shown on the right.

[0023] In the automatic door system 10 according to this embodiment, the control device 15 is housed in the wall 12 or in an opening / closing device attached to the door. The control device 15 receives signals from a switch 26 provided on the gate pole, a first area sensor 16 provided on the hinged doors 11a and 11b, and a second area sensor 17 provided on the wall 12.

[0024] Although not shown in Figure 1, the second area sensor 17 is installed on the upper transom of the hinged doors 11a and 11b of the wall 12 on the closing side, opposite to the opening side, relative to the wall 12 in Figure 1, and detects objects in a predetermined space located below it.

[0025] A second area sensor 17 is provided on the closing side wall 12 of the hinged doors 11a and 11b. When the second area sensor 17 detects an object, the control device 15 opens the hinged doors 11a and 11b. Structurally, the hinged doors 11a and 11b never face the pedestrian 30 on the closing side, allowing for control of the hinged doors with a simple configuration and reducing the manufacturing cost of the system.

[0026] The control device 15 operates the opening / closing motor 18 based on signals from the sensors mentioned above. In the automatic door system 10 according to this embodiment, the opening / closing motor 18 is provided in the transom above the opening side wall 12 of the hinged doors 11a and 11b.

[0027] (Control flow of automatic door system 10) Figure 4 shows an example of a control flow diagram of the automatic door system 10 according to this embodiment. The automatic door system 10 according to this embodiment is closed at the initial point.

[0028] When the passerby 30 has not operated the switch 26, the control device 15 of the automatic door system 10 maintains a state of waiting for a signal from the switch 26 in step 001 (hereinafter referred to as S001).

[0029] A passerby 30 of the automatic door system 10 approaches the automatic door system 10 from a distance on the opening side of the automatic door system 10 and activates, for example, the switch 26 on the left first gate pole 20. Then, in S002, the control device 15 opens the hinged doors 11a and 11b using the opening / closing motor 18 in accordance with the signal from the switch 26 and maintains the hinged doors 11a and 11b in the open state.

[0030] Subsequently, in S003, the control device 15 maintains the hinged doors 11a and 11b in the open state if a predetermined time has not elapsed. With the doors in this open state, the pedestrian 30 passes through the hinged doors 11a and 11b and reaches the closing side of the automatic door system 10. If a predetermined time has elapsed in S003, the control device 15 proceeds to S004.

[0031] In S004, the control device 15 closes the hinged doors 11a and 11b. The case in which the first area sensor 16 is turned on during this closing operation will be described below.

[0032] The first area sensor 16 is turned on, for example, when a passerby 30 is using a wheelchair and has not been able to pass through the hinged doors 11a and 11b within a predetermined time, and approaches the hinged doors 11a and 11b which are in the closing operation. If the first area sensor 16 is not turned on, the control device 15 continues the closing operation in S005, the hinged doors 11a and 11b become closed, and the control device 15 terminates the control flow.

[0033] When the first area sensor 16 is turned on while the hinged doors 11a and 11b are in the closing operation, the control device 15 advances the flow to S006.

[0034] In S006, the control device 15 stops the operation of the hinged doors 11a and 11b. Then, in S007, if a predetermined time has not elapsed, the control device 15 waits for that time to elapse. Once the predetermined time has elapsed, it resumes the closing operation of the hinged doors 11a and 11b, and the control flow ends when the hinged doors 11a and 11b are in the closed state.

[0035] Since the opening of the hinged doors 11a and 11b is performed by a switch 26 installed on the gate pole, the switch 26 on the gate pole can be installed at a position sufficiently far from the hinged doors 11a and 11b. This prevents a passerby 30 who presses the switch 26 from coming into contact with the hinged doors 11a and 11b being opened, allowing the passerby 30 to pass through the hinged doors 11a and 11b smoothly.

[0036] The hinged doors 11a and 11b are equipped with first area sensors 16, and while the first area sensors 16 are detecting an object, the control device 15 stops the operation of the hinged doors 11a and 11b, thereby preventing the hinged doors 11a and 11b from colliding with pedestrians 30 and providing a safe automatic door system 10.

[0037] In this embodiment, we have described a flow in which the operation of the hinged doors 11a and 11b is stopped when the first area sensor 16 detects an object, but the system is not limited to this flow. For example, when the first area sensor 16 detects an object, the operation of the hinged doors 11a and 11b can also be reversed. "Reversal" means, at a minimum, that when the hinged doors 11a and 11b are in the open position, the control device 15 closes the hinged doors 11a and 11b when the first area sensor 16 detects an object, or when the hinged doors 11a and 11b are in the closed position, the control device 15 opens the hinged doors 11a and 11b when the first area sensor 16 detects an object.

[0038] (Second Embodiment) Figure 5 shows a perspective view from diagonally above of the gate pole constituting the automatic door system 10 according to the second embodiment of the present invention. The other components are the same as those of the first embodiment, so their description is omitted.

[0039] The gate pole in the second embodiment includes a detection device 28 for detecting pedestrians passing through the hinged doors 11a and 11b. The detection device 28 is a signal transmitting device, and in this embodiment, it is a photoelectric sensor. Infrared rays 28a are emitted from the light-emitting part of the photoelectric sensor, and when these infrared rays 28a are blocked by a pedestrian or the like, the detection device 28 transmits a signal indicating that a pedestrian has been detected. Note that the detection device 28 is not limited to a photoelectric sensor; any device capable of detecting pedestrians is acceptable. Furthermore, a detection device 28 may also include a gate pole equipped with a swinging member that transmits a signal in accordance with its swinging motion.

[0040] (others) In the above embodiment, it is described that both hinged doors 11a and 11b open in response to a signal from switch 26, but the system is not limited to this. For example, if the automatic door system 10 is used in a concert hall, both hinged doors 11a and 11b are required to open before the concert begins, but after the concert begins, only one of the hinged doors 11a or 11b is required to open, so it is possible that only one of the hinged doors 11a or 11b will open.

[0041] Furthermore, although it has been described that a second area sensor 17 is provided on the closing side, the invention is not limited to this. For example, switches for opening the hinged doors 11a and 11b may be provided on the surface of the hinged doors 11a and 11b. [Explanation of Symbols]

[0042] 10 Automatic Door Systems 11 (11a, 11b) Hinged door 12 walls 15 Control device 16. First Area Sensor 17. Recovery in Area 2 20 Gate poles 26 switches 28 Detection device

Claims

1. An automatic door system that includes a hinged door installed in a wall and which opens and closes automatically, A gate pole is provided on the opening side of the aforementioned hinged door, for restricting passage along the wall on the opening side, The control device includes a control device for controlling the operation of the aforementioned hinged door, The gate pole is equipped with a signal transmitting device. Based on the signal transmitted from the signal transmitting device, the control device performs the operation to open the hinged door. An automatic door system characterized by the following features.

2. The signal transmitting device is a switch provided on the gate pole. The automatic door system according to feature 1.

3. The signal transmitting device is installed on the gate pole and includes a detection device for detecting pedestrians passing through the swing door. The automatic door system according to feature 1.

4. The aforementioned hinged door is a fire door. The automatic door system according to feature 1.

5. The aforementioned hinged door is equipped with a first area sensor for detecting objects within a predetermined space, When the first area sensor detects an object, the control device stops or reverses the operation of the hinged door. The automatic door system according to feature 1.

6. The aforementioned hinged door is provided with a second area sensor on the closing side of the wall for detecting objects within a predetermined space, When the second area sensor detects an object, the control device performs an opening operation for the hinged door. The automatic door system according to feature 1.

7. The switch is configured to attract the attention of passersby through the hinged door with light. The automatic door system according to feature 2.

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