JPH052300U - Aircraft guidance equipment - Google Patents

Abstract

(57) [Summary] (Purpose) A detector 1 that can accurately detect the arrival of the aircraft Ac at a predetermined position with a simple configuration when the aircraft Ac is guided by an apron Ap at an airfield so as to stop at the predetermined position. , 2 are put to practical use. (Structure) Groove 3 on the ground at a predetermined position of apron Ap
A substantially closed box-shaped housing member 8 is fixed to the inner bottom portion, and a proximity switch 21 that outputs a signal when the moving member 10 integrated with the seat plate 6 approaches is housed inside the housing member 8. By waterproofing and dustproofing the insertion portion of the moving member 10 in the housing member 8 by the shielding member 13, it is possible to reliably prevent rainwater, dust, and the like from entering the housing member 8. An outer frame is embedded in the groove 3 and a locking portion 5 is formed at the peripheral edge of the opening 4a of the outer frame 4, while an inclined surface 7 is formed at the peripheral edge of the seat plate 6, and the inclined surface 7 is projected from the seat plate 6. In this state, the locking portion 5 is brought into line contact with the opening 4a of the outer frame 4 to be closed by the seat plate 6, so that dust and the like can be stably prevented from entering the outer frame 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The idea is to run an aircraft in an apron at an airfield to stop it in place. The present invention relates to a guiding device for guiding.

[0002]

[Prior art]

  Generally, an apron is used to park an aircraft on the airfield to allow passengers to get on or off. Fuel is replenished and equipment is inspected.At this time, run the aircraft at the specified stop position. It is necessary to guide the line and stop it accurately. Use this aircraft to operate the crew (or work (Member) visually check and stop it, fill it in the ground corresponding to the stop position of the apron. Detects the embedded loop coil and that there is a magnetic field change in this loop coil The detector and the detection signal of the above detector installed in a place visible from the passenger compartment of the aircraft. The indicator for lighting etc. is provided by the When a ring comes, the detector detects the change in the magnetic field that accompanies it, and based on that detection signal It is known that the display device is operated by means of the above.

[0003]

[Problems to be solved by the device]

  However, in this conventional one, the method of detecting the change in the magnetic field due to the presence or absence of wheels is used. Therefore, the detector that detects the change in the magnetic field requires a complicated circuit and , Even if the wheel is slightly away from the position directly above the loop coil, a change in the magnetic field occurs and detection is performed. There was a wide range of accuracy, it was difficult to detect accurately, and there were complaints about reliability.

[0004]   Therefore, the inventor of the present invention arrived at the wheels of the aircraft guided by the apron in the airfield. As a detector to detect incoming traffic, it opens in the ground of the apron and the wheels of the aircraft are not immersive. A seat plate that can be inserted into and retracted from a groove of the Noh size, and the direction in which this seat plate protrudes from the groove. A spring that biases the seat plate, a shaft connected to the lower part of the seat plate, and a seat plate that is disposed in the groove. Proximity switch that outputs a signal when it detects that the shaft is approaching due to immersion in the groove Switch, the seat plate is set in the groove by the pressure of the wheel, and the shaft moves closer. When approaching the vehicle, the arrival of the wheel at the specified position is detected by the signal from this proximity switch. I thought about doing it. In this way, the seat plate and moving member The approach switch is used to detect the approaching motion, and the wheels are turned based on the ON / OFF signal from this switch. Since the arrival of the signal is determined, a complicated circuit is not necessary, and its detection can be performed with high accuracy. It can be performed accurately and reliability can be improved.

[0005]   However, in that case, a groove is formed in the apron and the detector is embedded in the groove. Therefore, it is unavoidable that the proximity switch of the detector is exposed to infiltration of rainwater or dust. You have to solve these problems before you can use them.

[0006]   The present invention has been made in view of these points, and its purpose is to provide the above-mentioned detector. Proximity switch by taking countermeasures against ingress of water, dust, etc. The arrival of aircraft wheels, which enhances the practicality of the detector, and is thus guided through the apron Can be accurately detected with a simple configuration to increase aircraft stop accuracy and reliability. To improve.

[0007]

[Means for Solving the Problems]

  In order to achieve this object, in the invention of claim 1, in the groove of the ground, a substantially closed box shape is formed. A switch accommodating member is embedded, and a proximity switch is accommodated inside the switch accommodating member. In the accommodating member, the insertion part of the moving member that is movable integrally with the seat plate has a waterproof and dustproof structure. It was made.

[0008]   Specifically, in this invention, a guidance that guides an aircraft to travel on an apron in an airfield As a device, a detector that detects the arrival of aircraft wheels at a predetermined position on the apron. To provide.

[0009]   This detector is open to the ground of the apron and is of a size that the wheels of the aircraft cannot be immersed. Seat plate that is inserted into and retracted from the groove, and urges this seat plate in the direction of protruding from the groove Biasing means and a substantially hermetical seal fixed to the bottom of the groove and having a through hole formed in the upper surface The box-shaped switch accommodating member is connected to the lower part of the seat plate, and the lower end penetrates the insertion hole. A moving member extending through the switch accommodating member and a bottom portion in the switch accommodating member Is installed in the seat and detects that the moving member is approaching due to the seat plate sinking into the groove. Proximity switch that outputs a signal, and switch accommodating portion at the lower part of the seat plate and the periphery of the insertion hole It is installed between the upper surface of the material and the part of the moving member that protrudes from the switch housing member is airtight. And a cylindrical shielding member that extends and contracts in a circular shape.

[0010]   According to a second aspect of the present invention, in addition to the above configuration, an outer frame is embedded in the groove, and a switch is placed inside the outer frame. The seat housing member and fix the peripheral edge of the seat plate to the opening of the outer frame. I tried to eliminate the gap between people.

[0011]   That is, in this invention, the above-mentioned groove has a size such that the wheels of the aircraft cannot be immersed. An outer frame that has an opening that is open to one side and that allows the seat plate to be inserted and retracted is fitted. The switch housing member is fixed to the bottom of the outer frame, and the switch housing member is opened around the opening of the outer frame. While the locking part that protrudes toward the center of the mouth is formed, the peripheral edge of the seat plate is An inclined surface that inclines upward is formed in the center of the seat plate, and the inclined surface is a protrusion of the seat plate. It is characterized in that it is configured to come into contact with the locking portion in the extended state.

[0012]

[Action]

  With the above structure, in the device of claim 1, the wheels of the aircraft to be stopped are When seated on the detector seat, the seat is recessed in the groove. With this immersive action, The moving member connected to the seat plate moves downward to move the proximity switch in the switch housing member. The proximity switch outputs a signal when the moving member approaches. This proximity The arrival of the wheels can be detected with high accuracy by a simple circuit by the signal of the switch, improving reliability. Can be raised. At that time, the proximity switch is a box-shaped switch. It is housed inside the container member, and it does not protrude from the switch member of the moving member. The covered part is covered with a cylindrical shielding member, which is inserted through the lower part of the seat plate. Since it is installed between the periphery of the hole and the upper surface of the switch housing member, the switch housing member is The insertion hole on the upper surface is covered with the shielding member in an airtight manner with respect to the outside. others Therefore, even if rainwater, dust, etc. enter the outer frame, it will still cause a gap between the insertion hole and the moving member. Therefore, it is possible to reliably prevent the intrusion into the switch housing member having the substantially closed box shape. this child The proximity switch inside the switch housing will not come into contact with water or dust. Therefore, the practicality of the detector can be enhanced.

[0013]   Further, in the invention of claim 2, the seat plate is in a protruding state by being biased by the biasing means. At this time, the inclined surface of the peripheral edge of the seat plate comes into contact with the locking portion on the peripheral edge of the opening of the outer frame. This contact Since the contact surface on the seat plate side is an inclined surface, it makes line contact, and the opening of the outer frame is Securely blocked. Therefore, it is possible to stably and effectively suppress the intrusion of dust and the like into the outer frame. Therefore, it is possible to more reliably prevent the entry of dust and the like into the switch housing member.

[0014]

【Example】

  Embodiments of the present invention will be described below with reference to the drawings.

[0015]   FIG. 4 shows the overall structure of the aircraft guidance device according to the embodiment of the present invention, where Ap is the airfield. On this apron, a straight guide rail that guides the aircraft Ac to the ground of this apron Ap. In Lg, and a stop line Ls and a caution line Lc (see And the line). The stop line Ls is connected to the guide line Lg. For example, the stop position of the front wheel W of the aircraft Ac guided along is determined. So it is a short line. The caution line Lc is the stop line Ls. Before arriving at the aircraft, know that the crew member (or worker) of the aircraft Ac was approaching the stop position. The stop line Ls has the same length as the stop line Ls.

[0016]   The position where the guide line Lg intersects the stop line Ls is in front of the aircraft Ac. It is the rear stop position, and the position where the guide line Lg intersects the caution line Lc is It is set as a caution position, and the stop position and the caution position are the positions of the wheel W to the position, respectively. Detectors 1 and 2 for detecting arrival are installed. These detectors 1 and 2 are the same The detector 1 at the stop position will be described below. That is, the figure As shown in FIG. 1 and FIG. 3, the ground at the stop position has a long line along the stop line Ls. For example, a bottomed square groove 3 of about 1 m is formed, and the detector 1 is fitted in the square groove 3. It The detector 1 has a rectangular box-shaped outer frame 4 that opens upward, and the opening of this outer frame 4 The width of 4a (the length along the guide line Lg) is large enough that the wheels W of the aircraft Ac cannot be immersed. It is supposed to be (see Figure 2). At the periphery of the opening 4a of the outer frame 4, the center of the opening 4a is formed. A locking portion 5 is formed so as to project toward the front side by a predetermined dimension. Also serves as a stopper for the plate 6.

[0017]   A seat plate 6 is fitted into the upper portion of the outer frame 4 so as to be retractable from the opening 4a. This seat The plate 6 has a substantially trapezoidal cross section, and the peripheral edge of the plate 6 is tilted upward toward the center of the seat plate 6. An inclined inclined surface 7 is formed, and the seat plate 6 is formed by the urging force of a spring 12 described later. In the state in which the outer frame 4 protrudes from the opening 4 a of the outer frame 4, the inclined surface 7 locks the outer frame 4. It comes into contact with the portion 5 in a line contact state, and the further protrusion of the seat plate 6 is restricted. ing.

[0018]   On the other hand, the inner bottom portion of the outer frame 4 has a corner as a switch housing member extending along the outer frame 4. A cylindrical inner frame 8 is fixed, and both ends of the inner frame 8 are airtightly closed to form a substantially closed box shape. Has been done. A plurality of (for example, three) shaft insertion holes 9, 9, ... Are provided on the upper wall of the inner frame 8. Are formed at equal intervals in the length direction (see FIG. 3). And the seat plate 6 The upper ends of the shafts 10, 10, ... Are integrally fixed to the lower part of the. This each The shaft 10 has rubber bushes 11 in the shaft insertion holes 9 of the inner frame 8. Is inserted slidably with the intervening part interposed, and the lower end thereof extends into the inner frame 8. Seat plate 6 Between the lower surface and the upper surface of the inner frame 8, a portion of each shaft 10 above the inner frame 8 is provided. The coil spring 12 located around the minute is compressed, and this spring 1 Urging to urge the seat plate 6 in the direction (upward) protruding from the opening 4a of the outer frame 4 by Means are configured.

[0019]   Further, on the upper surface of the bottom wall of the inner frame 8, a position immediately below the shaft insertion holes 9, 9 ,. The proximity switches 21, 21, ... Are attached to the table. As shown in Figure 2, The proximity switches 21 of the seats 6 are seated by the wheels W of the aircraft Ac riding on the seat plate 6. When the plate 6 sinks into the outer frame 4 and the lower end of the shaft 10 approaches, It detects and outputs a signal.

[0020]   In addition, the portion around each of the shafts 10 projecting upward from the inner frame 8 is a cylinder. Is covered with a rubber-like bellows member 13, the upper end of which is the lower surface of the seat plate 6. And the lower end is airtightly joined to the upper surface of the inner frame 8 at the periphery of the insertion hole 9, The bellows member 13 allows the insertion hole 9 of the inner frame 8 or the protruding portion of the shaft 10 to It is designed to shield in an airtight manner.

[0021]   Again, as shown in FIG. 4, the detectors 1 and 2 at the stop position and the caution position are The output of each proximity switch 21 is connected to the control board 22. . In front of the guide line Lg, head toward the aircraft Ac on the guide line Lg. For example, a display device 23 for displaying by lighting a colored lamp or the like is installed upright. Is connected to the control board 22 and guided along the guide line Lg. When the wheels W of the aircraft Ac arrive at the caution position or the stop position, The control board detects the signals of the proximity switches 21 of the detectors 2 and 1 that detect them. 22 is output to the display 23 by the control of the control board 22. It is supposed to be shown.

[0022]   Next, the operation of the above embodiment will be described. In the normal state, as shown in FIG. The seat plate 6 in each of the detectors 1 and 2 is apron Ap due to the urging force of the spring 12. Project above the ground. In this state, each proximity switch 21 detects the detection signal. Is not output and the display 23 is not operated. In addition, the inclined surface 7 at the peripheral edge of the seat plate 6 The outer frame 4 is in line contact with the locking portion 5 at the peripheral edge of the opening 4a, and therefore the opening of the outer frame 4 is The portion 4a is reliably closed by the seat plate 6 to stabilize the ingress of dust and the like into the outer frame 4. It can be effectively suppressed.

[0023]   In this state, the aircraft Ac is guided forward along the guide line Lg of the apron Ap. Then, when the front wheel W thereof rides on the seat plate 6 of the detector 2 in the caution position, as shown in FIG. In addition, the seat plate 6 is pushed down against the urging force of the spring 12 and is pushed into the outer frame 4. Immerse yourself. With the retracting operation of the seat plate 6, the shafts 10 connected to the seat plate 6 are When the shaft 10 is moved downward, its lower end approaches the proximity switch 21, The proximity switch 21 outputs a detection signal due to proximity. From this detection switch 21 The control board 22 outputs a display signal to the display 23 according to the detection signal and displays In the device 23, for example, a yellow lamp lights up and a display showing "Caution" is displayed. Done. By looking at this "Caution" indication, the crew member (or worker) can see the aircraft Ac Can know that the vehicle is approaching the stop position and can perform operations such as deceleration. .

[0024]   At this time, the seat plate 6 is long in the direction orthogonal to the guide line Lg, and is long in the length direction. Since the plurality of proximity switches 21, 21, ... Are arranged at intervals, the wheel W is Even if it is slightly deviated from the guide line Lg, one of the proximity switches 21 detects Therefore, the arrival of the wheel W can be detected more reliably.

[0025]   After this, the aircraft Ac advances further and the front wheels W of the detector 1 in the stop position When riding on the seat plate 6, the seat plate 6 is pushed down against the urging force of the spring 12 and the outer frame is pressed. Immerse in 4. With the immersing operation of the seat plate 6, the same movement as described above is performed, The proximity switch 21 outputs a detection signal. Detection signal from this detection switch 21 In response to the operation of the control board 22, the display 23 displays, for example, a red line. The lamp lights up and the indication of "stop" is displayed. (Or the worker) may stop the aircraft Ac immediately, and The aircraft Ac is stopped exactly at the stop position.

[0026]   Therefore, in this embodiment, the pressure of the wheel W causes the seat plate 6 and the shaft 10 to move. Since the proximity switch 21 detects the approaching movement, the arrival of the wheel W of the aircraft Ac is detected. It does not require complicated circuits. Moreover, the detection must be performed with high precision and accuracy. It is possible to improve the stopping accuracy of the aircraft Ac to the stopping position and improve the reliability. it can.

[0027]   Further, each of the proximity switches 21 is housed in the inner frame 8 having a closed box shape. Also, the shaft 10 is inserted through each insertion hole 9 that is an opening of the inner frame 8, The upper portion of each shaft 10 protruding from the inner frame 8 is covered with a cylindrical bellows member 13, The upper and lower ends of the bellows member 13 are on the lower portion of the seat plate 6 and the inner frame 8 around the insertion hole 9, respectively. Since it is airtightly joined to the surface, each insertion hole 9 on the upper surface of the inner frame 8 is attached to the bellows member 13. It will be more airtightly covered from the outside. As a result, the insertion hole 9 and the shaft 1 Even if the bush 11 is interposed between the outer frame 4 and Even if dust or the like enters, it will not enter the inner frame 8 through the gap between the insertion hole 9 and the shaft 10. It can be surely prevented from entering the. As a result, the seat plate 6 and the locking portion 5 of the outer frame 4 are Due to the synergistic effect of the line contact with the shielding effect, the proximity switch 21 in the inner frame 8 It is possible to obtain highly practical detectors 1 and 2 by avoiding contact with water and dust. it can.

[0028]

[Effect of device]

  As described above, according to the invention of claim 1, the predetermined position of the apron of the airfield When guiding the aircraft to stop at As a detector for detection, a switch box in a substantially closed box is installed in the groove of the ground in the apron. The switch member is fixed and the moving member that moves integrally with the seat plate is connected to the switch housing member. Accommodates a proximity switch that outputs a signal closer, and moves in the switch accommodating member Since the insertion part of the member has a waterproof and dustproof structure with a shielding member, It is possible to reliably prevent rainwater, dust, and the like from entering the H housing member. others Therefore, by using the proximity switch, the arrival of the wheel of the aircraft guided to travel is detected. Requires no complicated circuit, and its detection can be performed accurately, and Practical application of a detector that can improve the stopping accuracy of the aircraft and improve the reliability be able to.

[0029]   According to the invention of claim 2, an outer frame into which the seat plate is fitted is embedded in the groove. On the periphery of the opening of the outer frame, while forming a locking portion that projects toward the center of the opening, At the peripheral edge of the seat plate, an inclined surface that slopes upward to the center of the seat plate is formed. Since the inclined surface is brought into contact with the locking part in the protruding state of the seat plate, the seat plate does not protrude. When it is in the extended state, make sure that the inclined surface of the peripheral edge of the seat plate is not in line contact with the locking portion of the peripheral edge of the opening of the outer frame. In this way, the opening of the outer frame can be reliably closed by the seat plate, so that Further effectively suppress the invasion of dust and the like to further enhance the practical use of the above detector be able to.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing a normal state of a detector.

FIG. 2 is a view corresponding to FIG. 1 showing a detection state of arrival of wheels of a detector.

FIG. 3 is a plan view of a detector.

FIG. 4 is a plan view showing the overall configuration of the guiding device according to the embodiment of the present invention.

[Explanation of symbols]

1, 2 ... Detector 3 ... Square groove 4 ... Outer frame 5 ... Locking part 6 ... seat plate 7 ... Slope 8 ... Inner frame (switch accommodating member) 9 ... Shaft insertion hole 10 ... Shaft (moving member) 12 ... Spring (biasing means) 13 ... Bellows member (shielding member) 21 ... Proximity switch 22 ... Control board 23 ... Indicator Ap ... Apron Ac ... Aircraft W ... Wheel

Claims (2)

[Scope of utility model registration request] 1. A guide device for guiding an aircraft to travel on an apron in an airfield, wherein a detector for detecting arrival of wheels of the aircraft is provided at a predetermined position on the apron, and the detector is on the ground of the apron. A seat plate that is open and is fitted so that the wheels of the aircraft can appear and disappear in a groove of a size that cannot be immersed,
Urging means for urging this seat plate in a direction projecting from the groove,
A switch accommodating member fixed to the bottom of the groove and having a through hole formed in the upper surface thereof and a switch housing member having a substantially closed box shape, which is connected to a lower portion of the seat plate, and a lower end of the switch accommodating member penetrating the insertion hole. And a proximity switch that is disposed at the bottom of the switch housing member and that outputs a signal by detecting the approach of the moving member due to the recess of the seat plate. An aircraft guidance device, which is provided between a lower portion and an upper surface of a switch accommodating member at a peripheral edge of an insertion hole, and includes an expandable and contractible tubular shield member that airtightly covers a portion of the moving member protruding from the switch accommodating member. 2. An outer frame, which has an opening that is open above a size such that wheels of an aircraft cannot be retracted, and into which a seat plate can be retractably inserted, is fitted in the groove. A switch accommodating member is fixed to the bottom of the frame, and a locking portion that projects toward the center of the opening is formed at the peripheral edge of the opening of the outer frame, while the peripheral edge of the seat plate is seated upward. 2. The aircraft guidance device according to claim 1, wherein an inclined surface that is inclined is formed in a central portion of the plate, and the inclined surface is configured to contact the locking portion when the seat plate is in a protruding state.