JP3415421B2 - Switchgear object sensing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object detecting device for an opening / closing device that opens and closes an opening provided in various structures such as a building by moving an opening / closing body. For example, a shutter curtain when a building shutter is closed. It can be used for an object sensing device of a building shutter for sensing whether or not there is an object such as an obstacle in the front of the closing direction.

[0002]

2. Description of the Related Art In general, a building shutter that opens and closes an opening with a shutter curtain formed by connecting a large number of slats is provided at an opening such as a doorway and a window of a building.

Conventionally, when closing an opening in such a shutter for a building, an obstacle sensing device is provided for sensing whether or not there is an obstacle in front of the shutter curtain in the closing direction. The operation of lowering the shutter curtain and closing the opening is performed while detecting an obstacle.

As a building shutter for detecting such an obstacle, an apparatus (hereinafter referred to as a first conventional example) described in Japanese Patent Application Laid-Open No. 1-112489 has been proposed. In this device, an optical path along the seat plate at the lower end of the shutter curtain is formed by using a photoelectric sensor and a reflector.
In addition to sensing operation by an obstacle blocking this optical path, the shutter curtain is stopped from descending in conjunction with the obstacle detection by this photoelectric sensor, and it is lowered again after a predetermined time has elapsed for the removal of the obstacle. , It is designed to avoid repeated up and down movements of the shutter curtain. When the shutter curtain is descending, the reflection plate that forms the optical path projects downward from the seat plate to enable obstacle detection, and when it comes into contact with the floor surface, it rotates and retracts to allow the seat plate to land. Is configured to be.

An apparatus described in Japanese Patent Laid-Open No. 61-38087 (hereinafter referred to as a second conventional example) has also been proposed. In this device, a light beam sensor using infrared rays is attached to the retractable bottom plate of the shutter curtain so as to project downward, and the light beam sensor and the up / down control of the shutter curtain are linked. The light beam sensor is configured to detect an obstacle in a state where it projects downward from the seat plate, and when it comes into contact with the floor surface, the light beam sensor is moved and retracted so that the seat plate can be landed on the floor. Further, a similar device is proposed in Japanese Utility Model Laid-Open No. 5-64398.

[0006]

The above-mentioned conventional techniques have the following problems. That is,
In the case of the first conventional example described above, it is possible to detect the state where the light beam is blocked by the obstacle and the reflection plate is brought into contact with the floor surface to rotate only by capturing the passage / blockage of the light beam traveling along the seat plate. There is a problem in that it cannot be distinguished from the state in which the light beam is shielded after being retracted. Therefore, in the first conventional example, the limit switch circuit mechanism is provided completely separately from the rotary retracting mechanism of the reflector plate provided on the seat plate to detect that the shutter curtain has reached the upper and lower limits. Had a complicated structure.

Also in the above-mentioned second conventional example, if the passing / blocking of the light beam by the light beam sensor is captured,
There is a problem that it is not possible to distinguish whether it is blocked by an obstacle or whether the light beam sensor is in contact with the floor surface and moved and retracted to be blocked. Therefore,
Also according to the second conventional example, for example, a proximity switch is provided in the vicinity of the floor surface or a delivery amount based on the rotation amount of a shutter curtain driving motor, etc. Since it is necessary to provide a means for measuring the amount, there is a problem in that the entire device has a complicated structure.

An object of the present invention is to realize object detection when closing an opening by an opening / closing body with a simple structure, and to easily discriminate whether the detected object is an obstacle or a closed portion. It is an object of the present invention to provide an object sensing device for an opening / closing device.

[0009]

According to the present invention, there is provided an opening provided in a structure and an opening / closing body for opening / closing the opening. In the object sensing device of the opening / closing device, the opening of which is closed by abutting a closing portion located at the peripheral portion of the opening facing the opening, in the closing direction front position of the closing direction front end of the opening / closing body. A light-emitting part and a light-receiving part forming an optical path of a light ray for object detection running along with it; a detection means provided at a front end portion of the opening / closing body in the closing direction to detect that the front end abuts on the closing portion; It is characterized in that it further comprises a judging means for judging whether the object sensed is an obstacle or a closed portion based on the passage / blocking information and the detection information of the detecting means.

Here, the light emitting portion and the light receiving portion are not limited to the light emitting means and the light receiving means such as the light emitting element and the light receiving element which emit and receive the light by themselves, and either the light emitting portion or the light receiving portion. One or both of them may be a reflection plate, that is, as long as they are arranged at a distance and can form an optical path of a light ray that runs along the front end of the opening / closing body in the closing direction (see FIG. 16 described later). , FIG.
reference). When the front end of the opening / closing body in the closing direction is bent, a reflecting plate may be provided between the light emitting unit and the light receiving unit to refract the optical path according to the shape of the front end.

Further, the detecting means may be provided directly at the front end of the opening / closing body in the closing direction, or may be provided via an intermediate member, in short, it moves together with the front end of the opening / closing body in the closing direction. Anything can be used. The number of detecting means may be singular or plural, but it is preferable to provide plural detecting means in order to improve detection accuracy. Further, as the detecting means, a push button type contact type is preferable because it has a simple structure, but a non-contact type optical sensor or the like may be used.

Further, the judging means may be one using a computer or one composed of a relay circuit.

The object is an obstacle or a closed portion, and the obstacle includes all objects other than the closed portion.

In the present invention as described above, a light ray for object detection is made to travel along the optical path formed between the light emitting portion and the light receiving portion along the front end of the opening / closing body in the closing direction, and there is the object in the front direction of the closing direction. In some cases, the object is sensed by catching that this light beam is blocked. Further, in parallel with performing such object detection, the detection means grasps whether or not the front end portion of the opening / closing body in the closing direction abuts on the closing portion.

Then, based on the information of passing / blocking of the light beam thus obtained and the detection information of the detecting means, the judging means judges whether the sensed object is an obstacle or a closed portion.

That is, the judging means detects that the light ray passes between the light emitting portion and the light receiving portion, and the detecting means detects that the front end of the opening / closing body in the closing direction is not in contact with the closing portion. In this case, the front end portion of the opening / closing body in the closing direction is in contact with both the obstacle and the closing portion (hereinafter, "abutting against the obstacle" includes a case where the physical contact is not made). The light is blocked, and
When the non-contact state of the closed portion is detected by the detection means, it is determined that the front end portion of the opening / closing body in the closing direction has come into contact with the obstacle.

Further, in the case where the light beam is blocked while the front end of the opening / closing body in the closing direction is in contact with the closing portion,
The judging means judges that the device is in failure when the light beam passes and the detecting means detects the contact state of the closed portion,
When the light beam is blocked and the detection unit detects the contact state of the closing portion, it is determined that the front end of the opening / closing body in the closing direction is in contact with the closing portion. On the other hand, when the light beam is not blocked when the front end of the opening / closing body in the closing direction is in contact with the closing part, the judging means allows the light beam to pass and the detecting means detects the closing part contact state. When it is turned on, it is determined that the front end of the opening / closing body in the closing direction has come into contact with the closing portion, and when the light beam is blocked and the detecting means detects the closing portion abutting state, it is determined that the device has failed.

Therefore, the determination means can easily determine whether the sensed object is an obstacle or a closed portion. Based on the result of the determination, appropriate and efficient driving of the opening / closing body depending on the situation. It becomes possible to control.

The information referred to by the judging means is
Both the passing / cutoff information of the light beam for object detection running along the front end of the opening / closing body in the closing direction, and the detection information of the detection means provided at the front end of the opening / closing body in the closing direction and moving together with the front end, Since the information is based on the change in the peripheral condition of the front end portion of the opening / closing body in the closing direction, the device function can be concentrated around the front end portion of the opening / closing body in the closing direction. Therefore, in order to distinguish whether the opening / closing body is in contact with the obstacle or the closing portion, a proximity switch is provided in the vicinity of the closing portion as in the conventional case, or based on the rotation amount of the motor for driving the opening / closing body. Compared to the case where a means for measuring the amount of delivery is provided and means completely separate from the peripheral mechanism of the front end of the opening / closing body in the closing direction, the device configuration can be simplified. The purpose is achieved.

Further, the detecting means of the present invention may be one which directly detects the contact between the closing direction tip portion of the opening / closing body and the closing portion, or the tip end portion at the closing direction tip portion of the opening / closing body. An auxiliary member that protrudes forward in the closing direction is detected, and by detecting the contact between the auxiliary member and the closing portion, the contact between the front end in the closing direction of the opening / closing body and the closing portion is detected. May be However, if the configuration is such that the detection is performed via the auxiliary member like the latter, it becomes possible to appropriately adjust the timing of blocking the light beam for object detection and detecting the contact of the closed portion by the detection means. It is preferable in that it enables flexible design according to the above. And, among the devices that perform detection using such an auxiliary member, as a more preferable one, in particular,
The following object sensing device of the opening / closing device of the present invention in which the member supporting the light emitting portion and the light receiving portion also serves as an auxiliary member can be given.

That is, according to the present invention, in the above-described object detecting device for an opening / closing device, the light emitting portion and the light receiving portion are arranged at the front end of the opening / closing body in the closing direction so as to project forward from the front end in the closing direction and apart from each other. A light emitting unit supporting member and a light receiving unit supporting member for supporting the detecting unit are provided, and the detecting unit is
By detecting whether or not each of these support members is in contact with the closing part, it is detected that the tip of the opening / closing body in the closing direction is in contact with the closing part.

Here, the light emitting portion supporting member and the light receiving portion supporting member are provided at both ends of the tip portion or in the vicinity thereof in that the object can be sensed in the entire longitudinal direction of the tip portion in the closing direction of the opening / closing body. However, it is not always necessary to provide them at both ends, and they may be provided at intermediate positions. When the front end in the closing direction of the opening / closing body has a large dimension in the longitudinal direction, is bent, or has a weak light beam, the front end in the closing direction of the opening / closing body is divided in the longitudinal direction to support the light emitting unit. A plurality of pairs of members and light receiving unit support members may be provided.

With such a structure, the detecting means grasps that the front end portion of the opening / closing body in the closing direction is in contact with the closing portion, and the supporting members are in contact with the closing portion. Or not. Further, the light emitting portion and the light receiving portion forming the optical path of the light beam for object detection are supported by these respective supporting members. Therefore, the device function can be concentrated on each support member or its periphery, and the device configuration can be further simplified.

As one of the more specific embodiments of the present invention, in the above-mentioned object sensing device of the opening / closing device, the respective supporting members move forward and backward in the closing direction so that the front end portion of the opening / closing body in the closing direction. And a detection means that detects that each support member is in contact with the closing portion when the support member retracts rearward in the closing direction. To be

Here, the movement of each support member is preferably a movement in a direction parallel to the closing direction from the viewpoint of simplifying the configuration, but the present invention is not limited to this, and it is not limited to this. It may be a movement or the like, in short, as long as it moves in and out from the front end of the opening / closing body in the closing direction and the optical path between the light emitting portion and the light receiving portion is blocked when retracted rearward.

In such a structure, when the front end of the opening / closing body in the closing direction comes into contact with the closing portion, each supporting member moves and retracts rearward in the closing direction, and with this movement retracting. The optical path between the light emitting portion and the light receiving portion is blocked. Therefore, the detection means detects the movement of each support member and detects that each support member is in contact with the closed portion. When the light beam passes and the detection unit detects the closed portion contact state, the determination unit determines that the device has failed, the light beam is blocked, and the detection unit detects the closed portion contact state. If it is, it is determined that the front end of the opening / closing body in the closing direction abuts the closing portion.

Therefore, by simply grasping the change of each information due to the movement of each supporting member, the easy situation determination and the appropriate and efficient drive control of the opening / closing body according to the situation can be realized.

Further, as another more specific aspect of the present invention, in the object detecting device of the opening / closing device described above, each support member is centered on a position in the closing direction rearward of the opening / closing body in the closing direction. When the support members are retracted rearward in the closing direction, the detection means detects that the support members are in contact with the closing portion when the support members are retracted by pivoting. The thing characterized by that is mentioned.

In such a structure, when the front end of the opening / closing body in the closing direction comes into contact with the closing portion, each supporting member is pivotally retracted rearward in the closing direction, and the pivot retracting is performed. Accordingly, the optical path between the light emitting unit and the light receiving unit is blocked. Therefore, the detection means detects the rotation of each support member and detects that each support member is in contact with the closed portion. The determination method by the determination means in this case is the same as in the case of the above-mentioned configuration in which each support member is movable.

Therefore, by simply grasping the change of each information due to the rotation of each support member, the easy situation determination and the appropriate and efficient drive control of the opening / closing body according to the situation can be realized.

As yet another more specific aspect of the present invention, in the above-described object detecting device for an opening / closing device, the closing portion has a position closer to the closing direction tip of the opening / closing body than the other supporting members. A hole for accommodating a portion projecting forward in the closing direction is provided, each support member is fixed to the front end of the opening / closing body in the closing direction, and the detecting means detects each when the support member is housed in the hole. One of the features is to detect that the support member is in contact with the closed portion.

With such a structure, when the front end of the opening / closing body in the closing direction comes into contact with the closing part, each support member fixed to the front end is housed in the hole, and The optical path between the light emitting portion and the light receiving portion is blocked by the accommodation of the hole. Therefore, the detection means detects that the support member is in contact with the closed portion by catching the accommodation of the hole portion of each support member. The determination method by the determination means in this case is the same as that of the above-mentioned configuration in which each support member is movable or rotatable.

Therefore, it is possible to easily determine the situation and appropriately and efficiently control the opening / closing body according to the situation by simply grasping the change of each information due to the accommodation of the hole of each support member.

In the above invention, the determining means is provided at the front end of the opening / closing body in the closing direction, and the transmitting means is provided together with the determining means at the front end of the opening / closing body in the closing direction, and transmits the determination result of the determining means. Constituting the drive control means for driving and controlling the opening / closing body and the receiving means for receiving the signal from the transmitting means makes it possible to concentrate the function of the device on the front end portion of the opening / closing body in the closing direction and the device associated therewith. It is preferable in terms of simplification of the structure. However, the present invention is not limited to such a configuration, and for example, the determination result of the determination unit may be sent to the drive control unit by a cable or the like without providing the transmission unit and the reception unit, or the determination may be performed. The means may be connected to the drive control means without being provided at the front end of the opening / closing body in the closing direction.

If a power supply source such as a battery is provided at the front end of the opening / closing body in the closing direction, and power is supplied to the judging means, the transmitting means, and the light emitting part and the light receiving part by this power supply source, the power is supplied. Compared to the case where the supply source is provided on the fixed portion side, the device configuration can be simplified from the viewpoint of wiring, which is more preferable. However, of course, the power supply source may be provided on the fixed part side, and the cable may be pulled from the fixed part side to the tip side of the closing direction of the opening / closing body to supply power. Flexible control that does not need to be performed becomes possible.

Further, the number of light rays for object detection may be one or plural, and in the case of plural rays, even one of them may be detected as an object when cut off.
Alternatively, the object may be detected when all or two or more of them are cut off. Further, it may be determined that the interruption has occurred for the first time when the interruption time is equal to or longer than a predetermined time. Then, if the object detection is performed by capturing a plurality of interruptions or interruptions for a predetermined time or more, for example, an obstacle that may return immediately after the occurrence, such as a momentary passage of a leaf or the like, is an obstacle. Therefore, it is possible to avoid the inconvenience that the operation of the opening / closing body is stopped.

In the above, according to the present invention, the opening / closing body is provided with the opening / closing body for opening / closing the opening / closing body when it is a shutter curtain of a shutter device for various structures such as buildings or a door. The device can be widely applied as a general object sensing device.

For example, when the opening and closing body is a shutter curtain of a shutter device, various shutters for entrances and exits such as entrances and garages, shutters for buildings such as window shutters,
Alternatively, it can be suitably used as an object sensing device of a shutter device for opening and closing an opening provided in various structures such as a shutter for entrance to a subway or an underground mall. Further, these shutters may be a type in which a shutter curtain is formed by arranging a large number of slats in a row, and the shutter curtain is of a type that is wound and stored in the winding portion of the shutter box. Is formed by arranging a plurality of panels in series, and this shutter curtain is stored in the shutter box with individual panels separated and stacked.
Or, a shutter of a type in which individual panels are folded and stored in a connected state, and a large number of blades that form a shutter curtain change their vertical and horizontal positions to shield and open the front of the opening, and these blades Shutters of the type that are stacked one above the other in a shutter box, a shutter in which the shutter curtain is formed of a plurality of pipe members connected to each other by a link member, and a shutter curtain in addition to these shutter curtains. The shutter may also be equipped with a roll screen that covers the front surface of the opening for shade when the opening is open. It may be a shutter that is designed to be linked.

When the opening / closing body is a door, the present invention can be applied to both a sliding door and a hinged door. It may be for use.

The opening / closing direction of the opening / closing body such as the shutter curtain includes all directions including the vertical and horizontal directions. Further, the closed portion includes not only planar portions such as a floor surface, a ceiling surface, and a wall surface, but also an edge portion such as a window frame.

[0041]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall view of a building shutter 1 which is an opening / closing device including an object detection device according to this embodiment. 2 and 3 are enlarged views of the main parts of the object detection device 20 provided in the building shutter 1.

In FIG. 1, a shutter 1 for a building includes a shutter box 3 attached to an upper portion of an opening 2 such as a doorway of a building, and guide rails 4 vertically extending on both left and right sides of the opening 2. Have. Inside the shutter box 3, a winding unit 6 around which a shutter curtain 5, which is an opening / closing body, is wound is arranged. The shutter curtain 5 is formed by connecting a large number of slats 7 in series.
A seat plate 8 is provided at the lower end thereof, which is the front end portion in the closing direction. The left and right ends of the shutter curtain 5 are slidably inserted in the guide grooves of the guide rails 4, whereby the shutter curtain 5 is vertically movable while being guided by the left and right guide rails 4, and is lowered most. In such a state, the lower surface 8A of the seat plate 8 comes into contact with the floor surface 13 which is a closing portion facing the lower surface 8A to be in a fully closed state.

The building shutter 1 is an electric shutter, and the winding unit 6 is connected to a motor 9 for rotating the winding unit 6. This motor 9 is used for the control panel 1
It is controlled by the drive control means 11 provided at 0 to rotate the shutter curtain 5 up and down by forward rotation or reverse rotation to open and close the opening 2. The control of the motor 9 by the drive control means 11 is performed by the operation means 1
The operation is performed based on the operation information from 2 and the received signal from the object detection device 20. Alternatively, it may be performed based on a remote control signal from a remote controller (not shown) or the like.

In FIGS. 1 and 2, a prism-shaped light emitting portion support member 30 is provided at the left end of the seat plate 8, and a light receiving portion support member 40 of the same shape is provided symmetrically at the right end.
As a result, the support members 30 and 40 are arranged apart from each other by a distance corresponding to the longitudinal dimension of the seat plate 8. The lower portion of each of the support members 30 and 40 has a lower surface 8 of the seat plate 8.
Projecting portions 31, 4 projecting downward from A (forward in the closing direction)
It is 1. Further, each of the support members 30 and 40 is housed in the guide groove of the guide rail 4.

The light emitting portion support member 30 is provided with a light emitting portion 32, which is composed of a light emitting element that emits light such as infrared rays by itself, supported by the protruding portion 31, while the light receiving portion support member 4 is provided.
At 0, a light receiving portion 42 including a light receiving element that receives and senses the light by itself is provided by being supported by a protruding portion 41. The light emitting section 32 and the light receiving section 42 are arranged so as to face each other, and form an optical path of a light ray K for object detection that runs along the seat plate 8 at a position below the lower surface 8A of the seat plate 8.

The support members 30, 40 are guided by guide members 33, 43 fixed to the left and right side surfaces of the seat plate 8 and are slidable in the vertical direction with respect to the seat plate 8. Wide portions 34 and 44 are provided on the upper portions of the support members 30 and 40, and the wide portions 34 and 44 are provided on the guide members 3 respectively.
By contacting the upper surfaces of the support members 3, 43, the support members 30, 40
The downward movement of the seat plate 8 is restricted.

Above the supporting members 30 and 40, detecting means 50 and 60 for detecting whether or not the supporting members 30 and 40 are in contact with the floor surface 13 are provided. These detecting means 50, 60 are constituted by push button type contact switches and are supported by detecting means supporting members 51, 61 fixed to the left and right side surfaces of the seat plate 8 to face the supporting members 30, 40. Are arranged as follows.

A cylindrical coil spring 70 is provided between each of the detecting means supporting members 51 and 61 located on the upper side and the wide portions 34 and 44 of the supporting members 30 and 40 located on the lower side. , The receiving portions 71 provided on the upper and lower members,
It is supported by 72 so as not to shift its position. The support members 30, 40 are constantly pushed downward by these springs 70.

FIG. 3 shows a state in which the seat plate 8 is in contact with the floor surface 13 and the shutter curtain 5 is fully closed. In FIG. 3 and FIG. 1, when the lower surface of each support member 30, 40 abuts on the floor surface 13, each support member 30, 4
0 moves upward (closed in the closing direction) with respect to the seat plate 8 against the resistance of the spring 70, so that each support member 30,
The projecting portions 31, 41 of 40 are retracted from the lower surface 8A of the seat plate 8, and the lower surfaces of the support members 30, 40 and the lower surface 8A of the seat plate 8 are flush with each other. In this retracted state, the light beam K is blocked by the presence of the seat plate 8, and the detecting means 50, 60 are pushed by the supporting members 30, 40 that have moved upward, so that the detecting means 50,
It is detected by 60 that the support members 30, 40 are in contact with the floor surface 13. In addition,
The switches of the detection means 50 and 60 may be in a contact state (on) when pressed (retracted state) and in a non-contact state (off) when not pressed (protruded state),
Alternatively, the reverse configuration may be used, but the former configuration is adopted here.

A transmitter 80 is fixed at a position to the right of the center of the seat plate 8. The transmitter 80 has a control unit composed of an integrated circuit (IC) and a transmission unit having a transmission function of infrared rays, radio waves, etc., and the control unit controls the passage / blocking information of the light beam K and each detecting means 50. , 60 is configured to determine whether the sensed object is an obstacle or the floor surface 13, and the transmitting unit transmits the determination result of the determining unit 81 by the transmitting unit 82. Is configured. Then, the transmission means 8 is provided on the control panel 10.
There is provided a receiving means 90 composed of a receiver for receiving the signal from the No. 2 and the receiving means 90 is connected to the drive control means 11 and sends the received signal to the drive control means 11.

A battery 91 is provided on the seat plate 8,
Power is supplied to the transmitter 80, the light emitting unit 32 and the light receiving unit 42, and the detection units 50 and 60, which constitute the determination unit 81 and the transmission unit 82, through a cable (not shown). Further, the light emitting section 32 and the judging means 81
, And the light receiving unit 42 and the judging means 81, and the detecting means 50, 60 and the judging means 81 are also connected by cables (not shown) so that signals and information can be exchanged. .

The light emitting portion support member 3 described above
0, the light receiving portion support member 40, the light emitting portion 32, the light receiving portion 42, the detecting means 50 and 60, the judging means 81, the transmitting means 82, the receiving means 90, the battery 91, and the drive controlling means 11 from the receiving means 90. The object sensing device 20 of the first embodiment is configured by a portion that performs control based on signals. The drive control means 11 drives the motor 9 not only when it functions as the object sensing device 20 but also by switching the mode, based on only the operation information from the operation means 12 without performing the object sensing control. It is also possible to adopt a configuration that is also possible.

In the first embodiment as described above, the control by the object sensing device 20 is performed as follows. Figure 4
Outlines the flow of signals and information for object detection control. The left side of the figure is control performed on the side of the seat plate 8,
The right side of the figure is the control performed on the control panel 10 side. First, the outline of control will be described.

In FIG. 4, the judging means 81 to the light emitting section 3
Information for instructing the timing of light emission is sent to 2, and in accordance therewith, a light ray K for object detection along the seat plate 8 runs from the light emitting portion 32 toward the light receiving portion 42. Light emission from the light emitting unit 32 at this time may be periodically performed at a constant interval, may be performed at an appropriate timing when necessary in each stage of control, or when the life of the battery 91 is long. May emit light continuously during control. Then, the determining means 81 inputs the information as to whether or not the light receiving section 42 has received light, that is, the passage / blocking information of the light beam K.

Further, in parallel with the input of the passage / blocking information of the light ray K, the supporting members 30,
It is detected whether 40 is in the protruding state or the retracted state, and the detection information is input by the judging means 81.

Subsequently, information on the passing / blocking of the input light beam K (presence or absence of light detection by the light receiving section 42) and each detecting means 5
On the basis of the detection information of 0 and 60 (switch on / off), the determining means 81 lowers the seat plate 8 (forward in the closing direction).
It is determined whether or not there is an object in the vehicle, and if there is an object, it is determined whether the object is an obstacle or the floor surface 13. In other words, when the light detection unit 42 detects the light “present” and the detection units 50 and 60 are switched “on”, the determination unit 81 is usually in an impossible state due to the device configuration. Judge that the device is faulty. In addition, the light receiving unit 42
In the case where the light detection by “A” is “present” and the switches of the detection means 50, 60 are “OFF”, it is determined that neither the obstacle nor the floor 13 is in contact. Further, when the light detection by the light receiving section 42 is “absent” and the switches of the detection means 50 and 60 are “on”, it is determined that the floor surface 13 is contacted. Then, the light detection by the light receiving unit 42 is “none”,
When the detection means 50 and 60 are switched off, it is determined that the obstacle has come into contact.

After that, the judgment result by the judgment means 81 is sent to the transmission means 82, and the judgment result is transmitted from the transmission means 82 on the seat plate 8 side to the reception means 90 on the control panel 10 side. The above is the outline of seat plate side control.

On the other hand, the receiving means 90 which has received the transmission signal from the transmitting means 82 sends this information to the drive control means 11. Then, the drive control means 1 that has received the reception signal from the reception means 90, that is, the judgment result by the judgment means 81.
1 refers to the operation information by the operating means 12 together with this determination result, and controls the drive of the motor 9 according to the operator's request and situation. It should be noted that the operation information by the operation means 12 includes information such as the operator pressing the close button and the open button. The above is the outline of the control on the control panel side.

Next, details of seat plate side control will be described. Figure 5
~ Fig. 7 shows a flowchart of seat plate side control. Here, in the first embodiment, when the shutter curtain 5 comes into contact with the floor surface 13, the light detection by the light receiving unit 42 is “absent” first, and thereafter, after a certain period of time, the respective detection means 50, 60. When the shutter curtain 5 comes in and out of contact with the floor surface 13, on the contrary, the switches of the respective detecting means 50 and 60 are turned off first, and then the light receiving unit 42 waits for a certain time. Light detection is "Yes"
Shall be

In FIG. 5, first, the battery 91 is turned on to start the control by the object sensing device 20 (step S1). The switch of the battery 91 may be switched on / off in conjunction with the power-on of the control panel 10 by the operation of the operation means 12 or the remote operation, or may be performed by a separate operation.

Subsequently, the light ray K is emitted from the light emitting section 32 (step S2), and the passage / blocking information of the light ray K (presence or absence of light detection in the light receiving section 42) is inputted and confirmed by the judging means 81 (step S3). ). Here, the judging means 81
When the light reception is “present”, the detection information (on / off of each switch) of each detection means 50 and 60 is further input and confirmed (steps S4 and S5).

When the switches of the detecting means 50 and 60 are both "off", the process returns to step S2 to emit light again, and thereafter the shutter curtain 5 normally descends without contacting the object. As far as possible, the loop process of steps S2 to S5 is repeated.

Further, the judging means 81 includes the detecting means 50,
When any of the 60 switches is "ON" (including the case where both are "ON"), it is judged that the device is out of order because it is in an unusable state, and the result is sent to the transmitting means 82 for transmission. The means 82 transmits this determination result to the receiving means 90 on the control panel 10 side as a failure signal (during the downward movement) (step S10). After that, the alarm lamp provided on the transmitter 80 is turned on to notify the operator of the device failure (step S11). Then, the operator who confirms this alarm takes appropriate measures such as inspection and repair of the device (step S12). The alarm lamp is the transmitter 80
You may install in the position away from.

In step S3, the judging means 81 waits for a predetermined time when no light is received (step S2).
0), and further, the detection information (ON / OFF of each switch) of each detection means 50, 60 is input and confirmed (step S2).
1, S22). In addition, waiting for a predetermined time in step S20 means that the light receiving unit 4 is moved when the respective support members 30 and 40 are moved and retracted.
The timing at which the light detection in “2” becomes “none” is detected by each detection means 5
This is because it is earlier than the timing at which the switches 0 and 60 are turned “on”, so that the state of each switch is confirmed after waiting a predetermined time.

Then, the judging means 81 is configured to detect each detecting means 5
When any of the switches 0 and 60 is “off” (including the case where both are “off”), it is determined that the obstacle is contacted, and the result is sent to the transmitting means 82, and the transmitting means 82.
Transmits this determination result as an obstacle detection signal to the receiving means 90 on the control panel 10 side (step S50), and then
The process moves to steps S51 to S55 of FIG. 6 described later.

Here, when the switches of the detecting means 50 and 60 are both "off", the seat plate 8 is an obstacle (for example,
(People who pass by the opening 2 or automobiles that have not been stored yet)
, The switch of the detection means 50 is “off”, and the switch of the detection means 60 is “on”.
1 means that there is an obstacle (for example, an umbrella leaning against it) in the guide groove of the guide rail 4 on the right side in FIG. 1, and the switch of the detection means 50 is “ON”,
Moreover, the case where the switch of the detection means 60 is "off" is the case where there is an obstacle in the guide groove of the guide rail 4 on the left side in FIG.

Further, the judging means 81 includes the detecting means 50,
When both the switches of 60 are "ON", it is judged that the seat plate 8 is in contact with the floor surface 13, and the result is transmitted by the transmitting means 8
2, the transmitting means 82 transmits this determination result to the receiving means 90 on the control panel 10 side as a floor surface contact signal (step S60), and thereafter, steps S61 to S61 of FIG.
Then, the process proceeds to S74.

In FIG. 6, after transmitting the obstacle detection signal by the transmitting means 82 (step S50), the light emitting section 32 is used.
Then, the light beam K is emitted from the light source (step S51), and the presence / absence of light detection in the light receiving section 42 is confirmed by the determination means 81 (step S52). Here, when the light reception is “absent”, the determination means 81 continues light emission and confirmation until a predetermined time has elapsed (step S53), and the light reception “absence” state continues even after the predetermined time has elapsed. If the obstacle is present, it is determined that the obstacle has not been removed, and the result is transmitted by the transmitting means 82.
Then, the transmitting means 82 transmits this determination result to the receiving means 90 on the control panel 10 side as an unremoved signal (step S54). On the other hand, if the received light is “present” in step S52, the determination means 81 determines that the obstacle has been removed, and after transmitting the obstacle removal signal by the transmission means 82 (step S55), proceeds to step S2 in FIG. Return.

FIG. 7 shows a flowchart for raising the shutter curtain 5 from the state where the seat plate 8 is in contact with the floor surface 13 (fully closed state). In FIG. 7, after the floor contact signal is transmitted by the transmitting means 82 (step S60), the light emitting section 32 emits the light beam K (step S61), and the determining means 81 confirms whether or not the light receiving section 42 detects light. (Step S62). Here, when the light reception is “absent”, the determination means 81 further confirms whether the switches of the detection means 50, 60 are on or off (steps S63, S64, S65).

When both the switches of the detecting means 50 and 60 are "on", the process returns to step S61 through steps S63 and S64 to emit light, and as long as the fully closed state continues, step S61 is performed. The loop processing of S64 is repeated.

When the switch of the detecting means 50 is "on" and the switch of the detecting means 60 is "off", the judging means 81 goes through steps S63 and S64,
On the other hand, when the switch of the detecting means 50 is “off” and the switch of the detecting means 60 is “on”, step S
After 63 and S65, since the respective states are not normally possible, it is determined that the device is faulty and the result is sent to the transmitting means 82, and the transmitting means 82 controls this determination result as an obstacle signal (at the time of floor contact). It transmits to the receiving means 90 of the board 10 side (step S66). After that, the alarm lamp is turned on to notify the operator of the device failure (step S67),
The operator takes appropriate measures such as inspection and repair of the device (step S68).

When the switches of the detecting means 50 and 60 are both "off", the light emitting section 32 again emits the light beam K (step S69), and the judging means 81 causes the light receiving section 4 to operate.
The presence or absence of light detection in 2 is confirmed (step S7).
0). Thus, even though the light emission and the light reception are confirmed in steps S61 and S62 described above, the light emission and the light reception are confirmed again in steps S69 and S70.
When the shutter curtain 5 comes in and out of contact with the floor surface 13,
This is because the switches of the detection means 50 and 60 are turned “OFF” first, and the light detection by the light receiving unit 42 becomes “YES” after a certain period of time, so that there may be an intermediate state. .

Therefore, the light emission and the light reception confirmation in steps S69 and 70 are continued until the predetermined time elapses (step S71), and when the light reception "absent" state continues even after the predetermined time elapses, the transmitting means. The above-mentioned fault signal (at the time of floor contact) is transmitted by 82 (step S66), and the alarm lamp is turned on (step S67). On the other hand, if the received light is “present” in step S70, the determination means 81
Judges that the seat plate 8 has contacted and separated from the floor surface 13 and sends the result to the transmitting means 82, and the transmitting means 82 uses the result of this judgment as the floor surface contact / contact signal to the receiving means 90 on the control panel 10 side.
(Step S72), and then returns to step S2 in FIG.

In step S62, when the light reception is “present”, the determination means 81 further confirms whether the switches of the detection means 50 and 60 are on or off (steps S73 and S7).
4). Here, when the switches of the detection means 50 and 60 are both "off", the determination means 81 causes the seat plate 8 to move to the floor surface 13.
From the above, it is determined that the contact / separation has been made, and the above-mentioned floor surface separation / contact signal is transmitted by the transmission means 82 (step S72), and then the process returns to step S2 in FIG. Further, when either of the switches of the detecting means 50, 60 is "on" (including the case of both being "on"), the transmitting means 82 transmits the above-mentioned fault signal (when the floor surface is in contact). Then, the alarm lamp is turned on (step S66).

The details of the seat plate side control have been described above. The details of the control panel side control will be described below. 8-10,
A flow chart of control on the control panel side is shown.

In FIG. 8, first, the control panel 10 is powered on by operating the operating means 12 or by remote control, and control by the object sensing device 20 is started (step S10).
1). As described above, the switch-on operation of the battery 91 on the seat plate 8 side may be interlocked with this.

Subsequently, the drive control means 11 causes the seat plate 8
The signal from the transmitting means 82 provided on the side is received by the receiving means 90.
Is received (step S102), and if the reception is “present”, as shown in FIG. 9 described later, control is performed according to the type of the received signal (steps S103-).
On the other hand, if the reception is “absent”, on the other hand, as shown in FIG. 10 described later, the opening / closing operation is performed while confirming the situation (steps S160 to S176). After that, step S
Return to 102.

In FIG. 9, when the received signal is the obstacle detection signal (either the intermediate position, the right end position, or the left end position) (step S103), the opening / closing operation of the shutter curtain 5 is stopped (step S104). ), The obstacle detection state is stored in a storage means (not shown) connected to the drive control means 11 (step S105), and after processing such as lamp lighting, buzzer sounding, and signal output (step S1).
06), and returns to step S102 in FIG.

If the received signal is a non-removed signal (step S110), processing such as full-open operation and alarm signal output is performed (step S111), and the unremoved state is stored (step S112). Step S of FIG.
Return to 102.

Further, when the received signal is the obstacle removal signal (step S120), the obstacle detection state and the unremoved state are reset (step S121), and after the opening / closing operation is continued (step S122), It returns to step S102 of FIG.

If the received signal is the floor contact signal (step S130), it is confirmed whether the closing operation is being performed (step S131). If the closing operation is being performed, the closing operation is stopped. After storing the fully closed state (step S132) (step S133), the process returns to step S102 in FIG. On the other hand, if the closing operation is not in progress, failure processing such as failure display, notification, failure status storage, etc. is performed (step S134), and the operator takes corrective actions such as inspection and repair.

When the received signal is the floor surface separation / contact signal (step S140), it is confirmed whether or not the fully closed state is being stored (step S141), and whether or not the closing operation is being performed. If the fully closed state is being stored and the closing operation is being performed (step S142), the fully closed state is reset (step S143), and the process returns to step S102 in FIG. On the other hand, when the fully closed state is not being stored or when the closing operation is not being performed, the failure processing of step S134 described above is performed.

Further, when the received signal is a fault signal (step S150), fault processing such as fault display and notification is performed (step S151), and then it is confirmed whether or not the closing operation is being performed (step S152). ), If the closing operation is in progress, the closing operation is stopped (step S153), and then the process returns to step S102 in FIG. 8. If the closing operation is not in progress, the process directly returns to step S102. If it is not a fault signal in step S150, other processing such as taking out an event record is performed (step S154).

In FIG. 10, the drive control means 11 confirms whether or not the close button of the operation means 12 is pushed (step S160). Here, when the close button is pressed, it is confirmed whether the obstacle state is being stored, whether the fully closed state is being stored, and whether the obstacle detection state is being stored. (Step S161,
S162, S163), if none of these states is met, the closing operation is performed (step S164), while
If any of these states is met, event recording is performed (step S165). Then, step S10 of FIG.
Return to 2.

If it is determined in step S160 that the open button is not pressed, it is confirmed whether or not the open button of the operation means 12 is pressed (step S170). Here, when the open button is pressed, it is confirmed whether the fault state is being stored, whether the full open state is being stored, and whether the obstacle detection state is being stored ( Steps S171, S172, S173), and if none of these states applies, the opening operation is performed (step S17).
4) On the other hand, if any of these states is met, event recording is performed (step S175). Then, it returns to step S102 of FIG. If the open button is not pressed in step S170, other processing such as taking out the event record is performed (step S176).

According to such a first embodiment, there are the following effects. That is, since the object sensing device 20 includes the determination means 81, it is determined whether the sensed object is an obstacle based on the passage / blocking information of the light beam K and the detection information of the detection means 50 and 60. Can be easily determined. Therefore, based on the result of this determination, appropriate and efficient drive control of the shutter curtain 5 depending on the situation can be performed.

The information referred to by the judging means 81 is the passing / blocking information of the ray K and the detecting means 50, 6 respectively.
Since the detection information is 0, both support members 30, 40
In other words, since these are the information resulting from the change in the peripheral condition of the seat plate 8 on which they are provided, the device functions can be concentrated around the seat plate 8. Therefore, in order to distinguish whether the shutter curtain 8 is in contact with the obstacle or the floor surface 13, a proximity switch is provided near the floor surface 13 as in the conventional case, or based on the rotation amount of the motor 9 or the like. It is possible to simplify the device configuration, as compared with the case where a means for measuring the delivery amount is provided and a means completely different from the peripheral mechanism of the seat plate 8 is provided.

Further, since the supporting members 30 and 40 are provided so as to be retractable from the lower surface of the seat plate 8 by the vertical movement, the supporting members can be detected only by the detecting means 50 and 60. It is possible to detect whether 30 and 40 are in contact with the floor surface 13. Therefore, the device configuration can be further simplified.

Further, since the judging means 81 is provided on the seat plate 8, the concentration of the device functions on the seat plate 8 and the simplification of the device structure associated therewith can also be achieved. The result of the judgment made by the judging means 81 is transmitted from the side of the seat 8 to the control panel 10 by the transmitting means 82 and the receiving means 90.
Since the signal is transmitted to the side, it is possible to simplify the device configuration in terms of wiring that signal transmission by wire can be avoided.

Further, since the seat plate 8 is provided with the battery 91, it is possible to supply electric power to the judging means 81 and the like, which also simplifies the device configuration in terms of wiring. You can

Since the non-contact type object detection using the light beam K is performed, it is possible to stop the closing operation of the shutter curtain 5 before the obstacle actually contacts the seat plate 8.

In the first embodiment, the detection means 50, 60 are supported by the detection means support members 51, 61 fixed to the seat plate 8 above the support members 30, 40. However, it may be provided on the side of each support member 30, 40, and in short, it is sufficient if the movement of each support member 30, 40 can be captured. However, from the viewpoint of wiring processing, it is preferable to provide the detection means supporting members 51 and 61 on the fixed side.

Further, in the first embodiment, the judging means 81
Is configured by the control unit of the transmitter 80 provided on the seat plate 8, but may be configured by a device different from the transmitter, such as a personal computer or a relay circuit.
Further, the judging means 81 does not need to be provided on the seat plate 8, and the passage / blocking information of the light beam K and each detecting means 5 are provided.
If the detection information of 0 and 60 can be transmitted by wire or wirelessly, they may be provided on the control panel 10 side, for example.

In the first embodiment, the closed portion is the floor surface 13, but the present invention is not limited to this. For example, when the building shutter 1 is a window shutter, a window frame is used. And so on.

Further, in the first embodiment, the support members 30 and 40 are provided on the left and right side surfaces of the seat plate 8. However, a recess is provided in the lower surface 8A of the seat plate 8 to provide support members. The configuration may be such that the members 30 and 40 move to and retract from the recesses and are completely housed inside the seat plate 8. With such a configuration, it is possible to avoid contact between each of the support members 30, 40 or its peripheral members and the guide groove of the guide rail 4, and to make the guide groove shallow. You can On the other hand, as in the first embodiment, the object detecting device 20 can be attached to the existing shutter device by providing it on the left and right side surfaces of the seat plate 8.

Second Embodiment FIGS. 11 to 13 show flowcharts of seat plate side control by the object sensing device according to the second embodiment of the present invention. In the second embodiment, the object sensing device 20 and the device configuration of the first embodiment are substantially the same except for the relationship between the timing when the switch of each detecting means is pressed and the timing when the light detection by the light receiving unit becomes “absent”. Since they are the same, the same parts are designated by the same reference numerals, and detailed description thereof will be omitted. Only different parts will be described below.

In the first embodiment, when the shutter curtain 5 comes into contact with the floor surface 13, the light detection by the light receiving section 42 becomes “absent” first, and after that, each detection means 50, 60 after a certain period of time. When the shutter curtain 5 comes in and out of contact with the floor surface 13, the switches of the detecting means 50 and 60 are turned off first.
After a certain period of time, the light detection by the light receiving unit 42 is “present”. On the other hand, in the second embodiment, when the shutter curtain 5 comes into contact with the floor surface 13, the switches of the detection means 50 and 60 are turned “on” first.
Then, after a certain period of time, the light detection by the light receiving unit 42 becomes “none”, and conversely, the shutter curtain 5 is placed on the floor surface 1.
At the time of separating from and contacting with 3, the light detection by the light receiving unit 42 becomes “presence” first, and after that, each detection means 5 is set after a certain time.
In this configuration, the switches 0 and 60 are “off”, or the respective timings are the same.

In FIG. 11, first, the battery 91 is turned on to start the control by the object sensing device (step S201). The switch of the battery 91 may be switched on / off in conjunction with the power-on of the control panel 10 by the operation of the operation means 12 or the remote operation, or may be performed by a separate operation.

Subsequently, the judgment means 81 inputs and confirms the detection information (ON / OFF of each switch) of each detection means 50, 60 (steps S202, S203, S20).
4). Here, the judging means 81 is configured to detect each of the detecting means 50, 60.
If both switches are "off", step S20
The light beam K is further emitted from the light emitting unit 32 through steps S2 and S203 (step S205), and the passing / blocking information of the light beam K (presence or absence of light detection in the light receiving unit 42) is input and confirmed (step S206).

Then, the judging means 81 determines in step S20.
When the light reception is “present” in 6, the process returns to step S202 again to confirm the on / off input of the switches of the detection means 50 and 60, and thereafter, the shutter curtain 5 normally descends without contacting the object. As long as this is done, the loop processing of steps S202, S203, S205, and S206 is repeated.

On the other hand, the judging means 81 determines in step S206.
When the received light is “absent”, it is determined that the obstacle is contacted and the result is sent to the transmitting means 82. The transmitting means 82 sends the result of the determination to the receiving means 90 on the control panel 10 side as an obstacle detection signal. The data is transmitted (step S250), and then the process proceeds to steps S251 to S255 of FIG. 12, which will be described later. In this case, the contact with the obstacle means that the seat plate 8 comes into contact with an obstacle (for example, a person who has passed through the opening 2 or an automobile whose storage has not been completed).

When the switch of the detecting means 50 is "on" and the switch of the detecting means 60 is "off" in steps S202 to S204, step S2.
02, S204, on the other hand, the switch of the detecting means 50 is "off" and the switch of the detecting means 60 is "on".
In case of, the light beam K is further emitted from the light emitting unit 32 through steps S202 and S203 (step S207),
The determination unit 81 inputs and confirms the passage / blocking information of the light beam K (step S208).

Then, the judging means 81 determines in step S20.
When no light is received at 8, it is determined that the obstacle has been contacted, the transmitting unit 82 transmits the above-described obstacle detection signal (step S250), and then the processing of steps S251 to S255 of FIG. 12 described later. Move on to. In this case, the obstacle abutment means that there is an obstacle (for example, a leaning umbrella or the like) in the guide groove of the guide rail 4 on the right side or the left side in FIG.

On the other hand, the judging means 81 determines in step S208.
When the light reception is “present”, the light emission and the confirmation are continued until the predetermined time has elapsed (step S209). When the light reception “present” is still maintained after the predetermined time has elapsed,
Since it is a state that is usually impossible, it is determined that the device is faulty and the result is sent to the transmitting means 82, and the transmitting means 82 transmits this determination result to the receiving means 90 on the control panel 10 side as a failure signal (during the lowering). Yes (step S210). afterwards,
In order to inform the operator of the device failure, an alarm lamp provided on the transmitter 80 is turned on (step S211).
Then, the operator who confirms this alarm takes appropriate measures such as inspection and repair of the device (step S212).

Further, in steps S202 to S204, when the switches of the detection means 50 and 60 are both "ON", the light beam K is further emitted from the light emitting section 32 through the steps S202 and S204 (step S213), and the determination means. The information of passage / blocking of the light ray K is input and confirmed by 81 (step S214).

Then, the judging means 81 determines in step S21.
When the light reception is “absent” at 4, it is determined that the seat plate 8 is in contact with the floor surface 13, and the result is sent to the transmitting means 82, which controls the determination result as a floor surface contact signal. It is transmitted to the receiving means 90 on the board 10 side (step S260),
After that, steps S261 to S274 of FIG.
Move on to processing.

On the other hand, the judging means 81 determines in step S214.
When the light reception is “present”, light emission and confirmation are continued until a predetermined time has elapsed (step S215), and when the light reception “present” state continues after the predetermined time has elapsed,
Since it is a state that is not normally possible, it is determined that the device has failed, and the transmitting unit 82 transmits the above-mentioned fault signal (during the downward movement) (step S210). Note that S213 to S215
The loop processing is performed for a predetermined time when the shutter curtain 5 comes into contact with the floor surface 13 first by the detection means 50,
In consideration of the fact that the switch of 60 is turned “on” and the light detection by the light receiving unit 42 becomes “absent” after a certain period of time, there is a possibility that there is an intermediate state.

In FIG. 12, after transmitting the obstacle detection signal by the transmitting means 82 (step S250), the light emitting section 32 emits the light beam K (step S251), and the judging means 81 determines whether or not the light receiving section 42 detects light. Confirm (step S252). Here, in the case of no light reception, the determination unit 81 continues light emission and confirmation until a predetermined time elapses (step S253), and even after the predetermined time elapses, the light reception "no" state continues. When the obstacle is present, it is determined that the obstacle is not yet removed, and the result is sent to the transmitting means 82, and the transmitting means 82 sends the result of this determination to the receiving means 90 on the control panel 10 side as a non-removed signal (step). S254). On the other hand, when the light reception is “present” in step S252, the determination unit 81 determines that the obstacle is removed, and after transmitting the obstacle removal signal by the transmission unit 82 (step S255), the step S202 of FIG.
Return to.

FIG. 13 shows a flowchart for raising the shutter curtain 5 from the state where the seat plate 8 is in contact with the floor surface 13 (fully closed state). In FIG. 13, after the floor contact signal is transmitted by the transmitting unit 82 (step S260), the light beam K is emitted from the light emitting unit 32 (Step S261), and the light receiving unit 42 by the determining unit 81.
It is confirmed whether or not light is detected in step S26 (step S26).
2). Here, when the light reception is “present”, the determination unit 81 waits for a predetermined time (step S263), and further confirms whether the switches of the detection units 50 and 60 are on or off (steps S264 and S265). Note that step S2
When the shutter curtain 5 comes in and out of contact with the floor surface 13, the light detection by the light receiving section 42 is “presenced” first, and after a certain time, the detection means 5 waits for a predetermined time.
In consideration of the fact that the switches 0 and 60 are "off", it is decided to wait for a predetermined time before checking whether they are on or off.

Then, when the switches of the detecting means 50 and 60 are both "off" in steps S264 and S265, the judging means 81 judges that the seat plate 8 is separated from and contacted with the floor surface 13, and the result is judged. The determination result is sent to the transmission means 82, and the transmission means 82 uses this determination result as a floor surface separation / contact signal.
It transmits to the receiving means 90 of the side (step S266), and returns to step S202 of FIG. 11 after that.

On the other hand, when it is determined in steps S264 and S265 that one of the switches of the detecting means 50 and 60 is "on" (including the case where both are "on"), the judging means 81 is included.
Is a normally impossible state, it is determined that the device is out of order, and the result is sent to the transmitting means 82. The transmitting means 82 receives this determination result as a failure signal (at the time of contact with the floor surface) on the control panel 10 side. It is transmitted to the means 90 (step S267). After that, an alarm lamp is turned on to notify the operator of the device failure (step S268), and the operator takes appropriate measures such as inspection and repair of the device (step S269).

When the light reception is "absent" in step S262, the judging means 81 confirms whether the switches of the detecting means 50, 60 are on or off (steps S270, S27).
1, S272).

When the switches of the detecting means 50 and 60 are both "OFF", steps S270 and S27 are performed.
After passing 1, the light beam K is emitted from the light emitting section 32 again (step S273), and the presence / absence of light detection in the light receiving section 42 is confirmed by the judging means 81 (step S274). here,
When the light reception is “present”, the determination unit 81 determines that the seat plate 8 is separated from and contacted with the floor surface 13, and the transmission unit 82 transmits the above-described floor surface separation / contact signal (step S26).
6) and returns to step S202 of FIG. On the other hand, when no light is received, the determination means 81 determines that the device has failed,
After the transmitting unit 82 transmits the above-mentioned fault signal (at the time of contact with the floor surface) (step S267), the alarm lamp is turned on (step S268).

When the switches of the detecting means 50 and 60 are both "ON", steps S270 and S272 are performed.
After that, the process returns to step S261 again to emit light, and as long as the fully closed state continues, steps S261 and S2 are performed.
The loop process of 62, S270, and S272 is repeated.

Further, the switch of the detecting means 50 is "on".
When the switch of the detecting means 60 is "OFF", the steps S270 and S272 are executed. On the other hand, when the switch of the detecting means 50 is "OFF" and the switch of the detecting means 60 is "ON", step S270. , S2
After 71, the judging means 81 judges that the device is in failure, and the transmitting means 82 transmits the above-mentioned fault signal (at the time of contact with the floor surface) (step S267), and then turns on the alarm lamp (step S268).

The above is the details of the seat plate side control of the second embodiment, but since the details of the control panel side control of the second embodiment are the same as those of the first embodiment, the explanation is omitted.

According to the second embodiment, as in the first embodiment, the determination means 81 can easily determine whether the sensed object is the obstacle or the floor 13. Based on this, appropriate and efficient drive control of the shutter curtain 5 can be performed according to the situation, and the device functions can be concentrated around the seat plate 8 and the device configuration can be simplified based on this. The effect is that you can do it.

Also, as in the first embodiment, the light beam K
Since non-contact type object detection using is performed, the closing operation of the shutter curtain 5 can be stopped before the seat plate 8 actually contacts the obstacle in the second embodiment as well. In the second embodiment, determination of obstacle detection (step S2 in FIG. 11) is performed without performing the process of waiting for a predetermined time (step S20 in FIG. 5) as in the first embodiment.
50) and determination of floor contact (step S26 in FIG. 11)
0) can be performed, so that the closing operation of the shutter curtain 5 can be stopped earlier than in the first embodiment (steps S104 and S13 in FIG. 9).
2) can be achieved.

[Third Embodiment] FIG. 14 shows a partially enlarged view of an object sensing device 300 according to a third embodiment of the present invention. FIG. 14 is a diagram corresponding to a state in which the seat plate is viewed from the right side surface in FIG. In the third embodiment, except for the light emitting part supporting member, the light receiving part supporting member, and the detecting means, the device configuration is substantially the same as that of the object sensing device 20 of the first embodiment. Therefore, detailed description is omitted, and only different parts will be described below.

In FIG. 14, a hook-shaped light receiving portion support member 301 is provided on the side surface of the end of the seat plate 8 in the longitudinal direction, and is rotatable about a rotation shaft 302. Also,
A light emitting unit supporting member (not shown) is provided symmetrically with the light receiving unit supporting member 301 on the side surface of the end portion on the opposite side (back side of the drawing) of the seat plate 8.

The lower portion 3 of the light receiving portion support member 301 having a substantially circular shape
09 is provided with a light receiving portion 303 including a light receiving element,
A light ray K from a light emitting portion composed of a light emitting element supported by the light emitting portion supporting member is received.

A spring 304 is provided between the light receiving portion support member 301 and the seat plate 8, and a stopper 305 is fixed to the side surface of the end portion of the seat plate 8. Then, the light receiving portion supporting member 301 is attached to the stopper 3 by the spring 304.
It is always attracted to the 05 side. In this attracted state, the light-receiving unit support member 301 is in a posture slightly inclined with respect to the floor surface 13 from the vertical direction, whereby the light-receiving unit support member 301 abuts on the floor surface 13. At this time, the light receiving portion support member 301 is smoothly rotated and retracted.

Further, the light receiving portion supporting member 301 has the spring 30
When the lens is rotated and retracted against the drag force of No. 4, the position of the light receiving portion 303 is located above the lower surface 8A of the seat plate 8 as indicated by the chain double-dashed line in the figure, whereby the light ray K is blocked. Has become.

A detecting means 306 constituted by a push-button type contact switch is provided above the rotary shaft 302, and the detecting means 306 is fixed to the side surface of the end of the seat plate 8. It is supported by means supporting member 307. Further, on the opposite side of the seat plate 8, detection means not shown is provided at a symmetrical position.

When the light receiving portion support member 301 is rotated and retracted, the switch of the detecting means 306 is pushed by the hooked upper portion 308 as shown by the chain double-dashed line in the figure. As a result, the detection unit 306 catches the rotation and retreat of the light receiving unit support member 301, and detects the light receiving unit support member 30.
It is adapted to detect whether or not 1 is in contact with the floor surface 13. The detecting means 306 may be provided not on the detecting means supporting member 307 side but on the upper portion 308 side of the light receiving part supporting member 301.

In the third embodiment, the seat plate side control and the control panel side control are performed as in the first and second embodiments.

Then, according to the third embodiment as described above, each information (detection means 30 according to the rotation of the support member 301 is detected.
The change in switch ON / OFF information and passing / blocking information of the light beam K) in FIG. 6 makes it easy for the judgment means 81 to judge the situation and appropriately and efficiently control the drive of the shutter curtain 5. In addition to being able to
Similar to the first and second embodiments, there is an effect that the device function can be concentrated on the periphery of the seat plate 8 and the device configuration based on this can be simplified.

[Fourth Embodiment] FIG. 15 shows a part of a building shutter which is an opening / closing device including an object sensing device 400 according to a fourth embodiment of the present invention. In the fourth embodiment, the object sensing device 2 of the first embodiment is excluded except for the light emitting part supporting member, the light receiving part supporting member, and the detecting means.
Since the device configuration is substantially the same as 0, the same reference numerals are given to the same parts and detailed description thereof will be omitted, and only different parts will be described below.

In FIG. 15, a prismatic light emitting portion supporting member 401 and a light receiving portion supporting member 402 are fixed to the side surfaces of the left and right ends of the seat plate 8. The lower portions of the respective support members 401 and 402 project below the lower surface 8A of the seat plate 8, and the light emitting portion 403 formed of a light emitting element and the light receiving portion 404 formed of a light receiving element face each other at this protruding portion. It is located in.

Further, on the lower surface of each of the supporting members 401 and 402, detecting means 405 and 406 constituted by push button type contact switches are provided. On the other hand, floor 1
3 is provided with holes 407 and 408 each having a size capable of accommodating a portion of each of the support members 401 and 402 protruding below the lower surface 8A of the seat plate 8.

When the seat plate 8 comes into contact with the floor surface 13, the lower portions of the supporting members 401 and 402 are housed in the holes 407 and 408 as indicated by the chain double-dashed line in the figure, whereby the light-emitting portion is formed. The light beam K between the light receiving unit 403 and the light receiving unit 404 is blocked, and the switches of the detection units 405 and 406 are set to the holes 4
Each support member 4 is pushed by the bottom surface of 07, 408.
The detection means 405 and 406 detect whether or not 01 and 402 are in contact with the floor surface 13.

In the fourth embodiment as described above, the seat plate side control and the control panel side control are performed as in the first, second and third embodiments.

Further, according to the fourth embodiment as described above, each information (the on / off information of the switch of each detecting means 405, 406) associated with the accommodation of each support member 401, 402 in the hole portion 407, 408 and (Passage / blocking information of ray K)
It is possible to easily determine the situation by the determination means 81 and appropriately and efficiently control the drive of the shutter curtain 5 according to the situation by simply capturing the change of Similarly, there is an effect that the device functions can be concentrated on the periphery of the seat plate 8 and the device configuration based on this can be simplified.

[Other Embodiments] In each of the above-described embodiments, each of the light emitting portions 32, 403 and each of the light receiving portions 42, 303, 40.
Although 4 is composed of a light emitting element and a light receiving element, the light emitting section and the light receiving section of the present invention are composed of a light emitting means and a light receiving means which emit light and receive light by themselves such as the light emitting element and the light receiving element. The material is not limited to the one described above, and may be formed of a reflection plate.

For example, as shown in FIG. 16, the light emitting means 50
1 and the light receiving means 502 are provided above, and the seat plate 50 is attached to the light emitting part supporting member 504 and the light receiving part supporting member 505 on the left and right sides of the seat plate 503 at the lower end of the shutter curtain.
3, the reflection plates 506 and 507 inclined at 45 degrees with respect to 3 are fixed, and the light beam emitted from the light emitting means 501 is reflected by the reflection plate 5.
The light beam L may be refracted at 06 to travel along the seat plate 503, then refracted again at the reflection plate 507, and the light beam may be captured by the light receiving means 502.

In this case, the reflection plates 506 and 507 correspond to the light emitting portion and the light receiving portion of the present invention. Then, support members 504 and 505 that support the respective reflection plates 506 and 507.
May be movable up and down as in the first embodiment, or may be rotatable as in the third embodiment, and is fixed to the seat plate 503 as in the fourth embodiment. You may make it accommodated in the hole provided in the floor.

As shown in FIG. 17, a reflecting member 603 is supported by a supporting member 602 provided on the left side of the seat plate 601, and a light emitting element 605 and a light receiving element 606 are provided by a supporting member 604 provided on the right side of the seat plate 601. A light beam M emitted from the light emitting element 605 and running leftward in the drawing along the seat plate 601 is defined as a light beam N reflected by the reflecting plate 603 and running rightward in the drawing along the seat plate 601. The light beam may be captured by the light receiving element 605.

In this case, either the light ray M or the light ray N may be selected as the light ray for object detection which runs along the front end of the opening / closing body in the closing direction according to the present invention. The light emitting element 605 and the right side supporting member 604 in the figure correspond to the light emitting unit and the light emitting unit supporting member of the present invention, respectively, and the reflecting plate 603 and the left side supporting member 602 in the figure respectively correspond to the light receiving unit and the light receiving unit of the present invention. It corresponds to a supporting member. On the other hand, when the light ray N is selected, the reflecting plate 603 and the supporting member 602 on the left side in the figure correspond to the light emitting section and the supporting member for the light emitting section of the present invention, respectively, and the light receiving element 606 and the supporting member 604 on the right side in the figure respectively. They correspond to the light receiving portion and the light receiving portion supporting member of the present invention, respectively. Each of the support members 602 and 604 may be a movable type, a rotatable type, or a hole storage type.

Then, these reflecting plates 506, 507,
Even when 603 is used, the seat plate side control and the control panel side control similar to those in each of the above-described embodiments are performed, and, similarly to each of the above-described embodiments, easy situation determination, appropriate and efficient control,
It is possible to obtain effects such as simplification of the device configuration.

Further, in each of the above-mentioned embodiments, each detecting means 50, 60, 306, 405, 406 includes a light emitting portion supporting member 30, 401 and a light receiving portion supporting member 40, 301, 4.
The movement of 02, the rotation, or the accommodation of the hole is detected to detect whether or not each support member is in contact with the floor surface 13 to detect that the seat plate 8 is in contact with the floor surface 13. However, the detection means of the present invention is not limited to such a configuration.

For example, as shown in FIG. 18, a member 703 sized to be housed in the holes 701 and 702 of the floor surface 713.
704 is fixed to the seat plate 705, and each of these members 7
03, 704 support the light emitting portion 706 and the light receiving portion 707, and auxiliary members 708, 709 are provided so as to project below the lower surface of the seat plate 705. Through holes 714 formed in these auxiliary members 708, 709. The light ray P for object detection passes through 715, and the switches of the detecting means 710 and 711 are provided in the concave portion of the lower surface of the seat plate 705. Then, when the seat plate 705 abuts on the floor surface 713, the auxiliary members 708 and 709 contract the coil spring 712, move and retract upward, press the switch of the detecting means 710 and 711, and block the light beam P. To do so.
Further, the auxiliary members 708 and 709 may be configured to rotate and retract to push the switches of the detecting means 710 and 711. Further, the detection means 710, 711 and the auxiliary members 708, 709 may be provided outside the members 703, 704 instead of inside. And auxiliary members 708 and 709
May be installed in only one of them.

Even with such a structure, the same control as in each of the above-described embodiments can be performed, and the light emitting section 7 can be used.
06 and members 703 and 704 for supporting the light receiving unit 707
Is fixed to the seat plate 705, there is an advantage that it is preferable in terms of wiring and stable light emission and light reception can be performed. Further, in this way, the auxiliary member 708,
By providing the detection means 709, it is possible to appropriately adjust the timing of blocking the light beam P and switching on the detection means 710 and 711, as compared with the case where the detection means is directly provided on the seat plate 705. , It is possible to do a flexible design according to the purpose. It should be noted that the case where the detection means is directly provided on the seat plate 705 is included in the present invention. Further, each of the above-described embodiments corresponds to the case where such an auxiliary member and a member that supports the light emitting unit and the light receiving unit are aligned.

[0143]

As described above, according to the present invention, since non-contact type object detection using a light beam for object detection is performed, the front end of the opening / closing body in the closing direction actually contacts an obstacle. In addition to being able to stop the closing operation of the opening / closing body before, the judgment means can easily judge whether the sensed object is an obstacle or a closed part. In addition to being able to perform appropriate and efficient drive control of the opening / closing body according to the above, the device function can be concentrated around the front end of the opening / closing body in the closing direction, so that the device configuration can be simplified. There is an effect.

[Brief description of drawings]

FIG. 1 is an overall view of a building shutter that is an opening / closing device including an object detection device according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the object detection device according to the first embodiment.

FIG. 3 is another enlarged view of a main part of the object detection device according to the first embodiment.

FIG. 4 is a schematic diagram of the flow of signals and information for object detection control according to the first embodiment.

FIG. 5 is a first flowchart showing details of seat plate side control of the first embodiment.

FIG. 6 is a second flow chart showing details of seat plate side control of the first embodiment.

FIG. 7 is a third flowchart showing details of seat plate side control of the first embodiment.

FIG. 8 is a diagram of a first flow chart showing details of control panel side control of the first embodiment.

FIG. 9 is a second flowchart showing details of control panel side control of the first embodiment.

FIG. 10 is a diagram of a third flowchart showing details of control on the control panel side of the first embodiment.

FIG. 11 is a first flowchart showing details of seat plate side control according to the second embodiment of the present invention.

FIG. 12 is a second flow chart showing details of seat plate side control of the second embodiment.

FIG. 13 is a third flowchart showing the details of seat plate side control of the second embodiment.

FIG. 14 is a partially enlarged view of the object sensing device according to the third embodiment of the present invention.

FIG. 15 is a view showing a part of a building shutter which is an opening / closing device including an object detection device according to a fourth embodiment of the present invention.

FIG. 16 is a schematic configuration diagram showing a modified embodiment of the present invention.

FIG. 17 is a schematic configuration diagram showing another modification of the present invention.

FIG. 18 is a schematic configuration diagram showing still another modification of the present invention.

[Explanation of symbols]

1 Shutter for building which is an opening / closing device 2 Opening 5 Shutter curtain which is an opening / closing body 8,503,601,705 Seat plate 11 which is a front end in a closing direction Drive control means 13,713 Floor surface 20,300 which is a closing part 400 Object Sensing Device 30, 401, 504 Light Emitting Portion Support Member 32, 403, 706 Light Emitting Portion 40, 301, 402, 505 Light Receiving Portion Support Member 42, 303, 404, 707 Light Receiving Portion 50, 60, 306, 405, 406, 710,711
Detecting means 81 Judging means 82 Transmitting means 90 Receiving means 407, 408 Holes 506 Light emitting part reflector 507 Light receiving part reflectors 602, 604 Light emitting part supporting member or supporting member 603 being light receiving part supporting member 603 Light emitting part or Reflector plate 605 which is a light receiving section Light emitting element 606 which constitutes a light emitting section Light receiving elements K, L, M, N and P which constitute a light receiving section Light rays for object detection

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-121489 (JP, A) JP-A-9-189183 (JP, A) Actually opened 5-92397 (JP, U) Actually opened 4- 134398 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 9/80

Claims (10)

(57) [Claims] 1. A structure having an opening provided in a structure and an opening / closing body for opening and closing the opening, the front end of the opening / closing body in the closing direction of the opening facing the front end. An object detection device for an opening / closing device in which the opening is closed by abutting a closing part located at a peripheral edge, the object detection device running along a front end of a closing direction front end of the opening / closing body in a closing direction. a light emitting portion and a light receiving unit for forming an optical path of the rays of use, and detecting means for the tip provided in the closing direction end portion of the movable member is detected to be in contact with the closure, the said light beam Receiving the light from the light emitting unit
An opening / closing device, comprising: a determination unit that determines whether the object sensed is an obstacle or the closed unit based on the passage / blocking information up to the section and the detection information of the detection unit. Object sensing device. 2. The object detecting device for an opening / closing device according to claim 1, wherein the closing direction end of the opening / closing body is arranged so as to project forward in the closing direction and further away from each other than the leading end. And a light-receiving part supporting member for supporting the light-receiving part and the light-receiving part, and the detecting means detects whether or not each of these supporting members is in contact with the closing part. An object detecting device for an opening / closing device, which detects that the front end of the opening / closing body in the closing direction comes into contact with the closing part. 3. The object detection device for an opening / closing device according to claim 2, wherein each of the supporting members is provided so as to be retractable with respect to a front end portion in the closing direction of the opening / closing body by moving forward and backward in the closing direction. The detecting means detects that the support members are in contact with the closing portion when the support members are retracted rearward in the closing direction. . 4. The object detection device for an opening / closing device according to claim 2, wherein each of the support members is rotated about a rear position in the closing direction with respect to a front end of the opening / closing body in the closing direction. Is provided so as to be retractable with respect to, and the detection means detects that each of the support members is in contact with the closed portion when each of the support members retracts rearward in the closing direction. Object detection device for switchgear. 5. The object detection device for an opening / closing device according to claim 2, wherein the closing portion includes a portion of each of the support members that protrudes forward in the closing direction from a tip end in the closing direction of the opening / closing body. A hole that can be stored is provided, each of the support members is fixed to the front end of the opening / closing body in the closing direction, and the detection unit is configured to support each of the support members when the support member is stored in the hole. An object detecting device for an opening / closing device, wherein the object detecting device detects that the object is in contact with the closing part. 6. The object sensing device for an opening / closing device according to claim 1, wherein the determination means is provided at a tip end portion in the closing direction of the opening / closing body, and the determination means closes the opening / closing body. And a receiving means connected to drive control means for driving and controlling the opening / closing body and receiving a signal from the transmitting means. An object detection device for a switchgear. 7. The object sensing device of the switchgear according to claim 1.
The front end of the opening / closing body in the closing direction is the closing portion.
When it comes into contact with the
It becomes "none", and after a certain time, the detection means
Object detection device for switchgear characterized by being turned "on"
Place 8. The object sensing device of the switchgear according to claim 1.
The front end of the opening / closing body in the closing direction is the closing portion.
When it comes into contact with the
Then, after a certain period of time,
Object detection device for switchgear characterized by being "none"
Place 9. The object sensing device of the switchgear according to claim 1.
The front end of the opening / closing body in the closing direction is the closing portion.
When it comes into contact with the
And the timing at which the detection means is turned on.
Object of switchgear characterized by simultaneous minging
Sensing device. 10. The object detection of the switchgear according to claim 1.
In the device, the determining means is the light emitting unit of the light beam.
To / from the light receiving unit to the light-receiving unit and the detection hand
Characterized by determining device failure based on stage detection information
An object detection device for a switchgear.