JP2021095754A - Attachment structure of sensor - Google Patents

Abstract

To provide an attachment structure of a sensor hardly effected by an attachment structure of a guide rail and a condition of a building frame when the sensor for setting a surface detection area is attached.SOLUTION: There is provided an attachment structure of a laser scanner sensor 4 for setting a surface detection area in a shutter device, in which the sensor 4 is attached to lintel lower surfaces 80, 90 or a shutter case lower surface 100 while being adjacent to an upper end part of a prospective surface 30 of one guide rail 3 in a state where it is positioned on the inner side than the upper end part of the prospective surface 30.SELECTED DRAWING: Figure 11

Description

The present invention relates to a sensor mounting structure, and more particularly to a sensor mounting structure for setting a planar detection area in a shutter device.

Shutters that open and close frequently, for example, grill shutters installed at the entrances and exits of parking lots such as condominiums, are required to be safer because vehicles enter and exit frequently. Prevention of vehicle collision with the shutter is required.

Some such shutters have a vehicle collision prevention measure using a microwave sensor, but since the microwave sensor is a moving object detection sensor, it can detect a moving vehicle, but it stops. There is a problem that the vehicle (for example, the vehicle that keeps stopping for 1 minute) cannot be detected.

Another method is to install poles in front of both ends in the width direction of the opening and provide a photoelectric sensor that forms an optical axis in the width direction of the opening to detect an object such as a vehicle approaching the opening. Due to the need for underground wiring for sensors and problems such as parking space, installation conditions are limited and installation is often difficult in reality.

A system (Patent Document 1) for controlling an opening / closing body by using a sensor (for example, a laser scanner sensor) for setting a planar detection region has also been proposed. The laser scanner sensor can detect a moving object, but since the laser scanner sensor is installed in the lower part of the guide rail, the opening width dimension is narrowed near the ground, and contact with vehicles and people is possible. I am concerned. Further, since the laser scanner sensor is provided on the guide rail, it is difficult to install the laser scanner sensor when the guide rail is embedded. Further, even when the laser scanner sensor is installed on the skeleton near the guide rail, it is difficult to install the laser scanner sensor depending on the skeleton condition (tile finish, RC structure, etc.).
JP 2013-227827

An object of the present invention is to provide a sensor mounting structure that is not affected by the guide rail mounting structure or the skeleton condition when mounting the sensor that sets the planar detection region.

The technical means adopted by the present invention is
It is a mounting structure of a sensor that sets a planar detection area in a shutter device.
The sensor is attached to the upper portion of the opening in a state of being located inside the upper end portion of the prospective surface of one of the guide rails.
The mounting structure of the sensor.
In one embodiment, the sensor is in close proximity to or in contact with the upper end of the prospective surface of the guide rail.

In one embodiment, the sensor is attached to a forage above the opening.
In one embodiment, the sensor is mounted on the underside of the case above the opening.

In one aspect, the sensor is mounted such that the planar detection region forms an inclined surface that slopes from above the opening downwards away from the opening.
In one embodiment, the opening vicinity range is set by the distance between the inclined surface and the opening, and the target that has entered the opening vicinity range is detected by the inclined surface.
In one embodiment, when the sensor detects an object, a detection signal is transmitted from the detection device to the control unit, and the control unit regulates the closing operation of the opening / closing body according to the state of the opening / closing body. For example, if a detection signal is transmitted to the control unit while the opening / closing body is closed, the closing opening / closing body is stopped, or after the stop, it is inverted and opened.
In one embodiment, the range near the opening is set by the distance between the lower portion of the inclined surface and the opening.
In one embodiment, the lower end of the inclined surface does not reach the ground, and a non-detection region is provided near the ground. By setting a non-detection area near the ground, it is possible to prevent erroneous detection such as erroneous detection of suspended matter flying up from the ground due to the wind.

In one embodiment, the inclination of the inclined surface is variable.
In the detection device installed on the opening / closing body that opens and closes different opening heights, a constant opening vicinity range can be set by changing the inclination of the inclined surface (plane-shaped detection area). When the inclination of the inclined surface is the same, when the opening height is increased, the distance between the lower portion of the inclined surface and the opening is increased, but when the opening height is different, the inclination of the inclined surface is made different. The distance between the lower portion of the inclined surface and the opening can be kept constant.
By changing the inclination of the inclined surface (plane-shaped detection area), an arbitrary opening vicinity range can be set according to the inclination.

In one embodiment, the sensor is mounted on a mount that is hanging down above the opening.
In one embodiment, the sensor is attached to the mount so that the angle can be adjusted, and by adjusting the angle of the sensor with respect to the mount, the inclination of the planar detection region (inclined surface) can be changed. It has become.
In one embodiment, the mount is in close proximity to or in contact with the upper end of the prospective surface of one of the guide rails.

In one embodiment, the sensor is a laser scanner sensor.
In one aspect, the subject is a vehicle.
In one embodiment, the shutter is installed at the doorway of a parking lot.
In one embodiment, the shutter is a grill shutter (pipe shutter).

In the present invention, the sensor is attached to the upper portion of the opening in a state where it is located inside the upper end portion of the prospective surface of one of the guide rails. Therefore, when the guide rail is an embedded type or the skeleton is finished with tiles, etc. Even if it is difficult to install the sensor, it is possible to install the sensor.
In the present invention, since the sensor is mounted on the upper portion of the opening of the shutter device (magusa or shutter case), it is not affected by the mounting structure of the guide rail, the skeleton condition at the site, or the like.

It is a side view and the front view of the shutter device provided with the detection device which concerns on this embodiment, and the detection area in the shape of an inclined surface is set by a sensor. It is a side view and the front view of the shutter device provided with the detection device which concerns on this embodiment, and shows the state which detected the vehicle in the aspect of FIG. It is a side view and the front view of the shutter device provided with the detection device which concerns on this embodiment, and the opening height is set larger than FIG. It is a side view and the front view of the shutter device provided with the detection device which concerns on this embodiment, and the detection area in the shape of a substantially vertical plane is set by a sensor. It is a side view and the front view of the shutter device provided with the detection device according to this embodiment, and while the sensor is fixed to the lower surface of the forage in the aspect of FIGS. 1 to 4, the sensor is fixed in the aspect of FIG. Is attached to the underside of the shutter case. FIG. 3 is a partially enlarged view of a sensor mounting portion in the side view of FIG. It is a partially enlarged view which shows the posture of the sensor of the aspect shown in FIG. It is a partially enlarged view which shows the posture of the sensor of the aspect shown in FIG. It is a partially enlarged view which shows the posture of the sensor of the aspect shown in FIG. It is a partially enlarged side view which shows the mounting structure (fixation to the lower surface of a forage) of a sensor. It is a partially enlarged front view which shows the mounting structure (fixation to the lower surface of a forage) of a sensor. It is a partially enlarged side view which shows the mounting structure (fixation to the lower surface of a shutter case) of a sensor. It is a cross-sectional view which shows the positional relationship between a sensor and an embedded guide rail.

1 to 4 are a side view and a front view of the shutter device provided with the detection device according to the present embodiment. A shutter storage portion is formed in a portion above the opening, and a shutter storage portion is formed in the shutter storage portion. The take-up shaft 1 is rotatably supported, and the shutter curtain 2 is taken up by the take-up shaft 1. A switch M is provided on one side of the shutter accommodating portion in the opening width direction, and the take-up shaft 1 is rotationally driven by the switch M to wind / unwind the shutter curtain 2.

Left and right guide rails 3 are erected at both ends in the width direction of the opening, and the left and right guide rails 3 receive and guide both ends in the width direction of the shutter curtain 2 when raising and lowering the shutter curtain. The guide rail 3 includes a prospective surface 30 located inside and outside the guide groove that receives the widthwise end of the shutter curtain 2, a finding surface 31 facing the inside and outside of the opening, and a bottom surface 32 located at the bottom of the guide groove. , Is equipped. When the guide rail 3 is installed in an embedded manner, the finding surface 31 and the bottom surface 32 may be embedded in the wall or the skeleton W and not exposed to the outside (see FIG. 13).

When a shutter provided with the detection device according to the present embodiment is provided, for example, at the entrance / exit of a parking lot of an apartment house, a grill shutter (pipe shutter) is exemplified as the shutter. However, the opening / closing body provided with the detection device according to the present invention is not limited, and the opening / closing body includes slat shutters, seat shutters, panel shutters, overhead doors, general shutters including pipe shutters, and electric gates (sliding gates). , Other shutters are included.

In the shutter according to the present embodiment, the shutter curtain 2 is opened by a push button input from a one-point remote control type operation unit. When the button of the operation unit is pressed in the fully closed posture of the opening, the take-up shaft 1 is rotated by the drive of the switch M to raise the shutter curtain 2 and open the opening. Then, the fully open state of the opening is maintained for a predetermined time, and after the predetermined time elapses, the shutter curtain 2 automatically lowers to close the opening. In addition to the remote control type operation unit, an operation unit (not shown) may be provided on the skeleton, and in this case, the operation unit may be an operation unit having an open button, a close button, and a stop button.

The shutter device according to the present embodiment includes a pinch prevention sensor S1 and a foreign matter entrainment prevention sensor S2. The pinch prevention sensor S1 extends over a predetermined height to a plurality of floodlights provided below the prospective surface 30 of one guide rail 3 and a predetermined height below the prospective surface 30 of the other guide rail 3. It is a multi-axis photoelectric sensor consisting of a plurality of light receivers provided in the above. When an object or person is located in the opening, the optical axis is blocked to detect the object or person, and the detection signal is a control unit. By being transmitted to, the descent of the shutter curtain 2 is regulated.

The foreign matter entrainment prevention sensor S2 includes a floodlight provided above the prospective surface 30 of one guide rail 3 and a receiver provided over a predetermined height above the prospective surface 30 of the other guide rail 3. It is a photoelectric sensor, and when it rises with a foreign matter provided on the shutter curtain 2, the foreign matter blocks the optical axis to detect the foreign matter, and the detection signal is transmitted to the control unit, so that the shutter curtain Regulate the rise of 2.

The shutter device according to the present embodiment includes a laser scanner sensor 4 that sets a planar detection area. The laser scanner sensor 4 is provided in a portion above the opening, and the laser scanner sensor 4 has an inclined surface (FIG. 1) in which a planar detection region is inclined in a direction away from the opening from the upper side to the lower side of the opening. Is attached so as to form an inclined surface P1 and FIG. 3 shows an inclined surface P2). In the present embodiment, the laser scanner sensor 4 is provided at one end in the opening width direction above the opening, and a square detection region is formed from the corner of the upper end of the opening. The opening width extends over the entire width. The lower ends of the inclined surfaces (inclined surfaces P1 and P2) do not reach the ground G, and a non-detection region Q is provided in the vicinity of the ground G. The non-detection region Q is set to prevent false detection on the ground G, and the height of the non-detection region is, for example, about 300 mm.

In the detection device using the laser scanner sensor 4, the range near the opening is set by the horizontal distance between the inclined surfaces (inclined surfaces P1 and P2) and the opening, and the target that has entered the range near the opening is inclined. It is designed to be detected by the surface. The range near the opening is set according to an object (for example, a vehicle) entering and exiting the opening. The range near the opening is determined by, for example, the horizontal distance A (see FIGS. 1 and 3) from the opening (the center of the guide groove of the guide rail 3) to the lower end of the inclined surface. Since the inclined surface is an inclined straight line in a side view, if the horizontal distance from the opening (the center of the guide groove of the guide rail 3) is determined at any height of the inclined straight line, the horizontal distance can be determined. The range near the opening can be uniquely set.

If the detection target is a vehicle, the horizontal distance from the opening (center of the guide groove of the guide rail 3) to the lower end of the inclined surface is set to, for example, about 1400 mm. Therefore, as shown in FIG. 2, when the vehicle enters the area near the opening, the laser scanner sensor 4 detects the vehicle and the detection signal is transmitted to the control unit. Further, the inclined surface (plane-shaped detection area) is, for example, when a vehicle having a protruding portion protruding forward from the vehicle body on the upper side of the vehicle body approaches a range near the opening, the protruding portion is closer to the front portion of the vehicle body. Also above, the vehicle can be detected at an appropriate position by being detected by the inclined surface.

The shutter control when the control unit receives the detection signal from the laser scanner sensor 4 will be described. The laser scanner sensor 4 is always in a detectable state regardless of whether or not a signal is input from the operation unit, and when the laser scanner sensor 4 detects an object, the detection signal is transmitted to the control unit. However, the shutter control based on the detection signal from the laser scanner sensor 4 differs depending on the state of the shutter when the control unit receives the detection signal, as described below.

When the laser scanner sensor 4 detects an object (for example, a vehicle approaching the opening) during the shutter closing operation, the shutter curtain 2 during descent is stopped by the control unit receiving the detection signal, and then the shutter curtain 2 is stopped. It reverses and rises, and the opening is fully opened and stopped. Therefore, when the vehicle approaches the opening and enters the area near the opening while the shutter curtain 2 is descending, the laser scanner sensor 4 detects the vehicle, the detection signal is transmitted to the control unit, and the control unit transmits the detection signal. Since the shutter curtain 2 during descent stops, then reverses and rises, and rises to the state where the opening is fully opened, the vehicle entering the range near the opening opens the opening without colliding with the shutter curtain 2 during descent. Can pass through.

When the laser scanner sensor 4 detects an object (for example, a vehicle approaching the opening or a vehicle parked near the opening) in the fully open state of the opening, the shutter curtain 2 does not descend.

Further, in the fully open state of the opening, for example, when the vehicle stops while straddling the opening and is not detected by the laser scanner sensor 4 inside or outside the opening, the vehicle is detected by the pinch prevention sensor S1. , The shutter curtain 2 does not descend. If the object is detected by the laser scanner sensor 4 and at the same time the object is blocking the optical axis of the pinch prevention sensor S1, the object is the laser scanner sensor 4 and the pinch prevention sensor. It can be detected by both sensors in S1. Although the descent of the shutter curtain 2 is restricted regardless of which sensor detects it, a person skilled in the art can appropriately set which sensor gives priority to the detection signal.

The laser scanner sensor 4 according to the present embodiment is mainly for preventing the vehicle from colliding with the shutter curtain during descent, and the laser scanner sensor 4 does not operate as a start switch. In the fully closed state of the opening, for example, even when the vehicle is detected by the laser scanner sensor 4, the shutter curtain 2 does not rise, and the shutter curtain 2 starts to rise by the opening signal from the operation unit, and the opening Vehicles entering the vicinity can pass through the open opening. Even if the laser scanner sensor 4 detects an object (for example, a vehicle approaching the opening) during the shutter opening operation, the shutter curtain 2 continues to rise, and the vehicle entering the range near the opening is released. Can pass through the opening.

In the present embodiment, the inclination of the planar detection region set by the laser scanner sensor 4, that is, the inclined surface (inclined surface P1 in FIG. 1 and the inclined surface P2 in FIG. 3) is variable. By making the inclinations of the inclined surfaces P1 and P2 variable, it is possible to set a constant detection range (range near the opening) even when the opening heights opened and closed by the shutters are different. When the inclination of the inclined surface formed by the laser scanner sensor 4 is the same, when the opening height is increased, the horizontal distance between the lower portion of the inclined surface and the opening is increased, but when the opening height is different, the inclination of the inclined surface is increased. By making them different, the horizontal distance between the lower part of the inclined surface (assumed detection part) and the opening can be kept constant regardless of the opening height. As is clear from the comparison between FIGS. 1 and 3, in the aspect of FIG. 3, the height dimension of the opening is larger than the height dimension of the opening of the aspect of FIG. In the aspect of FIG. 3, the inclination of the inclined surface P2 (angle with respect to the horizontal plane) is made larger than the inclination of the inclined surface P1 of the aspect of FIG. 1 (angle with respect to the horizontal plane) (direction closer to the vertical plane). In the aspect and the aspect of FIG. 3, a constant detection range (horizontal distance A for determining the range near the opening) can be set regardless of the opening height.

Further, by changing the inclination of the inclined surface-shaped detection region, an arbitrary opening vicinity range can be set according to the inclination. For example, when the entrance / exit of a parking lot is close to the road, increasing the inclination (angle with respect to the horizontal plane) of the detection area (direction closer to the vertical plane) prevents false detection by people or objects located on the road. can do. Further, as shown in FIG. 4, the laser scanner sensor 4 can be used as a pinch prevention sensor by setting the planar detection region to a substantially vertical surface P3.

A specific configuration (angle adjustment mechanism) of the inclination of the planar detection region (inclined surface) set by the laser scanner sensor 4 according to the present embodiment will be described. The laser scanner sensor 4 according to the present embodiment includes a sensor main body 5 and a mounting bracket 6, and is mounted on a mounting base 7 fixed to a portion above the opening via the mounting bracket 6 so that the angle can be adjusted. By adjusting the mounting angle of the laser scanner sensor 4 (sensor body 5 + mounting bracket 6) with respect to the mounting base 7, the surface-shaped detection area (tilted surfaces P1, P2, vertical surface P3) irradiated from the sensor body 5 is tilted. Is variable.

The mounting base 7 includes a vertical base side 70, a vertical side side 71 extending from both ends in the width direction of the base side 70 so as to face each other, and a horizontal upper side 72 formed at the upper end of the base side 70. By fixing the upper side 72 to the upper portion of the opening, the upper side 72 is attached to the upper end of the opening in a hanging shape. Examples of the portion above the opening to which the upper side 72 of the mounting base 7 is fixed include the lower surfaces 80 and 90 of the forage and the lower surface 100 of the shutter case, as will be described later.

The laser scanner sensor 4 positions the mounting bracket 6 between the side sides 71 of the mounting base 7 and fixes it to the mounting base 7 in a predetermined posture by the upper rotating support shaft 60 and the lower angle adjusting fixed shaft 61. Will be done. More specifically, the laser scanner sensor 4 is rotatably supported with respect to the mounting base 7 via the upper rotation support shaft 60, and the rotation support shaft 71 is provided on the opposite side side 71. An arc-shaped guide groove 73 centered on 60 is formed, and the lower angle adjusting fixing shaft 61 is movable and position-fixable in the guide groove 73.

A plurality of marks 74 that serve as angle marks are provided on at least one side side 71 along the guide groove 73, and the laser scanner sensor 4 is rotated so that the angle adjustment fixed shaft 61 coincides with the predetermined mark 74. By moving it, the angle adjustment fixing shaft 61 is fixed at a desired position. In the embodiment shown in FIG. 7, the angle adjustment fixed shaft 61 is aligned with the second mark 74 from the right, the laser scanner sensor 4 is fixed in a predetermined angle posture with respect to the vertical plane, and the laser scanner The laser emitted from the sensor 4 forms an inclined surface P1. In the embodiment shown in FIG. 8, the angle adjustment fixed shaft 61 is aligned with the fourth mark 74 from the left, the laser scanner sensor 4 is fixed in a predetermined angle posture with respect to the vertical plane, and the laser scanner The laser emitted from the sensor 4 forms an inclined surface P2. In the embodiment shown in FIG. 9, the angle adjustment fixed shaft 61 is aligned with the first mark 74 from the left, the laser scanner sensor 4 is fixed in a substantially vertical posture, and is irradiated from the laser scanner sensor 4. The laser forms a vertical plane P3. In the illustrated embodiment, eight marks 74 are provided, but the number of marks 74 is not limited. Further, the shape of the mark 74 is not limited to the one shown in the figure.

The angle adjustment fixed shaft 61 is composed of, for example, a screw 61', and the shaft portion (angle) is formed by tightening the screw 61'and pressing the head of the screw 61'to the side 71 (may be via a washer). The position of the adjustment fixed shaft 61) is fixed, and by loosening the screw 61', the shaft portion (angle adjustment fixed shaft 61) can be moved along the guide groove 73. Further, the rotary support shaft 60 may be composed of the shaft portion of the screw 60'.

In the present embodiment, the two laser scanner sensors 4 are provided so as to be located inside and outside the guide rail 3 with the guide groove sandwiched on one side in the opening width direction of the portion above the opening. In the present embodiment, the laser scanner sensor 4 is provided at a position on the side where the switch M is provided, and the control unit (not shown) provided in the vicinity of the switch M and the laser scanner sensor 4 are electrically connected. Wiring 40 can be performed smoothly. In FIG. 10, one (outside) laser scanner sensor 4 is omitted.

In the embodiment shown in FIGS. 1 to 4, the shutter storage portion is formed in the ceiling CL, and as shown in FIG. 6, the inner forage (case forage) 8 and the outer forage are located above the opening. 9 is provided, and a hoistway for the shutter curtain 2 is formed between them. The inner forage 8 includes a horizontal lower surface 80, and the lower surface 80 is exposed above the opening. The outer forage 9 includes a horizontal lower surface 90, and the lower surface 90 is exposed above the opening. The mounting base 7 of the outer laser scanner sensor 4 has an upper side 72 fixed to the lower surface 90 of the outer forage 9 at one end in the opening width direction so as to approach the upper end of one guide rail 3 and lower surface. It is attached so as to hang down from 90. One side side 71 of the mounting base 7 of the outer laser scanner sensor 4 is close to or in contact with the outer prospective surface 30 of the guide rail 3. The mounting base 7 of the inner laser scanner sensor 4 has an upper side 72 fixed to the lower surface 80 of the inner forage 8 at one end in the opening width direction so as to approach the upper end of one guide rail 3 and lower surface. It is attached so as to hang down from 80. One side side 71 of the mounting base 7 of the inner laser scanner sensor 4 is close to or in contact with the inner prospective surface 30 of the guide rail 3.

The laser scanner sensor 4 is composed of a scanner body 5 and a mounting bracket 6, and is provided above the opening and at one end in the opening width direction by fixing the mounting bracket 6 to the mounting base 7. The laser scanner sensor 4 is provided at the upper end of the opening at one corner in the opening width direction, and is prevented from coming into contact with an object or a person passing through the opening as much as possible. Since the laser scanner sensor 4 according to the present embodiment forms a rectangular detection region, the detection region irradiated from the laser scanner sensor 4 provided at the corner portion is planar so as to cover the entire width of the opening. It is formed with a spread.

A groove or an opening through which the wiring 40 of the laser scanner sensor 4 is inserted is formed on the upper side 72 of the mounting base 7, and the insertion portions 81 and 91 of the wiring 40 are formed on the lower surfaces 80 and 90 of the magus (see FIG. 6). The wiring 40 of the laser scanner sensor 4 extends into the shutter accommodating portion through the groove portion and the insertion portions 81 and 91 (see FIG. 10), and the control unit near the switch M (not shown). ) Is electrically connected.

In the embodiment shown in FIG. 5, the shutter case 10 is attached to the skeleton W, and the internal space of the shutter case 10 serves as a shutter storage portion. In the embodiment shown in FIGS. 1 to 4, the laser scanner sensor 4 is fixed to the lower surfaces 80 and 90 of the forage, whereas in the embodiment shown in FIG. 5, the laser scanner sensor 4 is attached to the lower surface 100 of the shutter case 10. ing. More specifically, the upper side 72 of the mounting base 7 is fixed to one end side of the lower surface 100 of the shutter case in the opening width direction. An insertion portion for the wiring 40 is formed on the lower surface 100 of the shutter case, and the wiring 40 of the laser scanner sensor 4 extends into the shutter case 10 through the groove portion and the insertion portion (see FIG. 12).

The laser scanner sensor 4 according to the present embodiment is attached to the upper portion of the opening in a state of being located inside the upper end portion of the prospective surface 30 of one of the guide rails 3 (the side where the switch M is provided). In the illustrated embodiment, one side side 71 of the mounting base 7 is close to or in contact with the upper end portion of the prospective surface 30 of the guide rail 3, and the laser scanner sensor 4 is in contact with the prospective surface 30 of the guide rail 3. It is close to the upper end of the. As described above, the laser scanner sensor 4 is provided so as to be located inside the prospective surface 30 of the guide rail 3 in the upper portion of the opening (the lower surfaces 80 and 90 of the magusa and the lower surface 100 of the shutter case). The laser scanner sensor 4 can be installed without being limited to the finish of the site (embedding guide rails, finishing tiles on the outer wall, etc.).

For example, as shown in FIG. 13, when the guide rail 3 is installed in an embedded manner, the finding surface 31 and the bottom surface 32 of the guide rail 3 may be embedded in the wall or the skeleton W and not exposed to the outside. is there. Even in such an embedded guide rail 3, by providing the laser scanner sensor 4 on the upper portion of the opening (the lower surfaces 80 and 90 of the magusa and the lower surface 100 of the shutter case), the finishing of the shutter device at the site is completed (guide rail). Is not limited to embedding). Further, even in the embedded guide rail 3, since the prospective surface 30 is exposed to the outside, the laser scanner sensor 4 can be arranged close to the upper end portion of the prospective surface 30. The laser scanner sensor 4 provided at the upper corner of the opening does not spoil the appearance of the shutter device, and does not come into contact with an object or a person passing through the opening to obstruct the passage. ..

3 Guide rail 30 Expected surface 4 Laser scanner sensor 5 Sensor body 6 Mounting bracket 7 Mounting base 8 Inner lintel 80 Lower surface 9 Outer lintel 90 Lower surface 10 Shutter case 100 Lower surface A Distance between inclined surface and opening P1, P2 Inclined surface Q Undetected area

Claims (7)

It is a mounting structure of a sensor that sets a planar detection area in a shutter device.
The sensor is attached to the upper portion of the opening in a state of being located inside the upper end portion of the prospective surface of one of the guide rails.
Sensor mounting structure. The sensor mounting structure according to claim 1, wherein the sensor is close to or in contact with an upper end portion of a prospective surface of the guide rail. The sensor mounting structure according to any one of claims 1 and 2, wherein the sensor is mounted on a forage above the opening. The sensor mounting structure according to any one of claims 1 and 2, wherein the sensor is mounted on the lower surface of the case above the opening. The sensor is attached so that the planar detection region forms an inclined surface that is inclined in a direction away from the opening from the upper side to the lower side of the opening.
The sensor mounting structure according to any one of claims 1 to 4. The mounting structure of the sensor according to any one of claims 1 to 5, wherein the sensor is mounted on a mounting base fixed in a hanging shape in a portion above the opening. The sensor is attached to the mounting base so that the angle can be adjusted, and the inclination of the planar detection region is variable by adjusting the angle of the sensor with respect to the mounting base.
The mounting structure of the sensor according to claim 6.

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