JPH05195515A - Heliport - Google Patents

Abstract

PURPOSE:To reduce work load by rotating a heliport having a helicopter landing attitude indicating mark about an axis of rotation so that said mark is brought in line with a direction of wind detected by a sensor for detecting wind direction. CONSTITUTION:An electric signal of wind direction detected by a sensor 5 is inputted into a computer 7 through a wiring 6. In response the computer 7 processes the signal to send a control signal to a motor or a hydraulic device 9 through a wiring 8. Next, the motor or the device 9 turns a heliport about an axis of rotation 14 to bring a landing attitude indication mark 2 provided on the surface of the heliport 1 in line with the wind direction. Consequently, if a pilot of a helicopter watches the mark 2 and makes a landing, the landing can be made in the direction of wind, reducing thereby work load of the pilot, so that safety is ensured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heliport used by a helicopter for takeoff and landing.

[0002]

2. Description of the Related Art Conventionally, a heliport (fixed) 29 fixed to the ground as shown in FIG. 13 or a heliport (fixed) 29 fixed to the roof of a building 27 has been used.

FIG. 14 shows a conventional heliport.
As shown in FIG. 15, the airflow blown down from the main rotor 31 of the helicopter is reflected on the ground or the roof 12 to generate the circulation flow 40 between the helicopter and the ground or the roof 12. Therefore, the pilot of the helicopter was looking at the windsock 41 near the heliport (fixed) 29, checking the wind direction 4, and operating the helicopter so that helicopter landed in front of the wind.

[0004]

Conventionally, as shown in FIG. 13, a heliport (fixed) 29 fixed to the ground or a heliport (fixed) 29 fixed to the roof of a building is conventionally used.
Was using. In such a state, the pilot does not know from which side the wind is blowing, so it is necessary for the pilot to confirm the wind direction 4 from the state of the windsock 41 and land, which increases the work load on the pilot.
In the worst case, it could lead to a helicopter accident.

Further, in the conventional heliport, FIG.
As shown in FIG. 15, the downwind 23 generated by the rotation of the main rotor 31 is reflected on the ground or the roof 12 to generate a circulation flow 40 between the helicopter and the ground or the roof 12, and the ground or the roof 12 Dust, sand, etc., are rolled up and hit against a helicopter, dust, sand, etc. are sucked into the engine 33 to cause an engine failure, and exhaust gas of a high-temperature engine is sucked into the engine 33, and the output of the engine 33 is reduced. It caused problems such as lowering the helicopter's takeoff and landing performance. In addition, when the helicopter takes off and landing, there was an environmental problem of causing noise pollution to nearby residents.

It is an object of the present invention to solve the above-mentioned problems of the conventional heliport and to provide a heliport which does not have a circulating flow 40 between the ground or the roof 12 and has less noise.

[0007]

[Means for Solving the Problems]

(First Means) A heliport according to the present invention is a heliport 1 having a helicopter landing attitude instruction mark 2 on its surface, in which a rotary shaft 14, a bearing portion 10, a rotation driving means 9, a rotation control means 7, and a wind direction detection sensor 5 are provided. It is characterized in that the heliport 1 is rotated around the rotation axis 14 so that the landing attitude instruction mark 2 matches the wind direction detected by the wind direction detection sensor 5. (Second Means) The heliport according to the present invention is characterized in that, in the first means, the surface of the heliport 24 has a blow-down suction hole 43 for the main rotor 31. (Third means)

In the heliport according to the present invention, in the first means or the second means, a noise-preventing batten 28 is provided outside the rotatable heliport 24, and a soundproof material is provided in the blow-down passage portion of the main rotor 31. 42 is provided.

[0009]

[Action]

(1) Since the heliport is rotatable and the landing posture instruction mark is provided on the surface of the heliport, the heliport can be rotated so that the wind direction detected by the sensor and the landing posture instruction mark match. (2) By providing a suction hole for blowing down the main rotor on the surface of the heliport, it is possible to prevent generation of a circulation flow between the helicopter and the ground.

(3) It is possible to prevent the noise generated by the helicopter from being diffused and absorb the noise by installing a tether outside the rotatable heliport and providing a sound absorbing material in the passage portion under the main rotor.

[0011]

EXAMPLES Examples of the present invention are shown in FIGS. Figure 1
3 shows a first embodiment of the present invention. 1 is a view of the first embodiment as seen from above, FIG. 2 is a cross-sectional view as seen from the side, and FIG. 3 is an operation block diagram.

In order to make the heliport 1 rotatable and to rotate so that the landing attitude instruction mark 2 attached to the heliport 1 and the wind direction 4 coincide with each other, the rotating shaft 14 and the motor or hydraulic device 9 are located below the heliport 1. And bearing 1
1 is provided, and a bearing 13 is provided on the outer periphery of the heliport 1.

An electric signal in the wind direction detected by the sensor 5 is input to the computer 7 via the wiring 6. The computer 7 processes the wind direction signal and sends a control signal to the motor or the hydraulic device 9 via the wiring 8 to rotate the heliport 1 and landing attitude instruction mark 2 attached to the heliport.
And wind direction 4 match. The operation block diagram is shown in FIG. The heliport of the first embodiment can be installed either on the ground or on the roof.

Since the first embodiment is an automatic operation system using the sensor 5 and the computer 7, the operator 16 is unnecessary, labor can be saved, and human mistakes are not made. Can operate helicopters.

Then, the helicopter pilot can land in the direction of the wind 4 by landing while seeing the mark 2 attached to the heliport, which contributes to reducing the work load of the pilot and securing and improving the safe flight of the helicopter. can do. 4 to 5 show a second embodiment of the present invention. FIG. 4 is a sectional view of the second embodiment seen from the side, and FIG. 5 is an operation block diagram.

While the first embodiment is the automatic operation system using the sensor 5 and the computer 7, in the second embodiment, the landing attitude indicator mark 2 of the heliport is directed so that the wind direction detecting sensor 15 faces in the wind direction. First, the operator operates the switch 17 to operate the motor or the hydraulic device 9 to rotate the rotatable heliport 1 in the direction 3 to match the wind direction 4. 6 to 9 show a third embodiment of the present invention.

FIGS. 6-8 show the main rotor blow-down suction hole 43 provided on the surface of the rotatable heliport 24. The types of the suction holes 43 include the multi-hole method shown in FIG. 6, the multi-groove method shown in FIG. 7, and the mesh method shown in FIG. The rotatable heliport 24 is similar except that the surface of the heliport 1 of the first embodiment has a suction hole 43 through which the main rotor is blown down. FIG. 9 shows a sectional view of the third embodiment seen from the side. Heliport 24
The main rotor has a blow-down suction hole 43 formed therein, and the method of opening the suction hole 43 may be any of the methods shown in FIGS.

The down blower 23 generated by the rotation of the main rotor 31 of the helicopter 22 passes downward through the suction hole 43, is discharged upward through the discharge port 44, and the heliport 24.
Therefore, the circulating flow 40 as shown in FIGS. 15 to 16 does not occur. Therefore, dust, sand, etc. will not be wound up and damage the helicopter. Further, dust, sand, etc. are not sucked into the engine 33, and high temperature air is not sucked into the engine 33. Therefore, the engine 33 will not be damaged and the output of the engine 33 will not be reduced, and the helicopter take-off performance will not be deteriorated. The helicopter of the third embodiment can be installed either on the ground or on the roof of a building. The third embodiment can be applied to either the first or second embodiment.

FIG. 10 shows a sectional view of the fourth embodiment of the present invention as seen from the side. The fourth embodiment is different from the third embodiment in that the direction of the discharge port 45 is horizontal and the air is discharged in the horizontal direction, but the other points are the same as the third embodiment.

FIG. 11 shows a sectional view of the fifth embodiment of the present invention as seen from the side. The fifth embodiment implements noise countermeasures for helicopters in the third embodiment. That is, a hanging piece 28 is provided outside the discharge port of the third embodiment to prevent the noise from spreading in the lateral direction, and a soundproof material 42 is housed in the hanging piece 28 to absorb the noise. Also, heliport 2
The soundproof material 42 is also housed in the portion through which the blowdown from below 4 to the discharge port 44 passes to reduce noise. Soundproof material 42
Is made by putting glass fiber, etc. into a panel such as corrugated plate or perforated plate. The fifth embodiment can be applied to the first to third embodiments.

FIG. 12 is a sectional view of the sixth embodiment of the present invention viewed from the side. The sixth embodiment implements noise countermeasures for the helicopter in the fourth embodiment. That is, a vertical bar 28 is provided outside the outlet of the fourth embodiment to prevent noise from spreading in the lateral direction, and the vertical bar 28 also has the soundproofing material 4.
2 is stored to absorb noise. The other points are the same as in the fifth embodiment. The sixth embodiment can be applied to the first, second and fourth embodiments.

[0022]

Since the present invention is constructed as described above, it has the following effects.

(1) Since the helipad is rotatable and can be rotated so that the landing posture instruction mark of the helipad and the wind direction detected by the sensor coincide with each other, the work load on the pilot is reduced and
It can contribute to ensuring and improving flight safety. (2) Since the suction hole for blowing down the main rotor is provided on the surface of the heliport, the generation of the circulation flow 40 can be prevented. for that reason,
It is possible to prevent dust and sand from being wound up and damaging the helicopter fuselage, and dust and sand from being sucked into the engine and damaging the engine. Further, it is possible to prevent the takeoff and landing performance from being deteriorated due to the fact that the high temperature air of the engine exhaust is sucked into the engine and the engine output is reduced.

(3) By installing a tiling on the outside of the rotatable helipad and by providing a sound absorbing material in the passage where the main rotor is blown down, the noise generated by the helicopter can be prevented from spreading and the noise pollution can be reduced. Can contribute.

[Brief description of drawings]

FIG. 1 is a diagram of a first embodiment of the present invention viewed from above.

FIG. 2 is a sectional view of the first embodiment of the present invention as seen from the side.

FIG. 3 is an operation block diagram of the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of a second embodiment of the present invention viewed from the side.

FIG. 5 is an operation block diagram of a second embodiment of the present invention.

FIG. 6 is a view showing a porous heliport.

FIG. 7 is a view showing a multi-groove heliport.

FIG. 8 is a diagram showing a mesh type heliport.

FIG. 9 is a sectional view of a third embodiment of the present invention seen from the side.

FIG. 10 is a sectional view of a fourth embodiment of the present invention seen from the side.

FIG. 11 is a sectional view of a fifth embodiment of the present invention seen from the side.

FIG. 12 is a sectional view of a sixth embodiment of the present invention as seen from the side.

FIG. 13 is a view showing a conventional ground heliport (fixed).

FIG. 14 is a view of the circulation flow seen from the side.

FIG. 15 is a view of the circulating flow seen from the front.

[Explanation of Codes] 1 ... Heliport (rotatable), 2 ... Landing attitude indicator mark, 3 ... Rotation, 4 ... Wind direction, 5 ... Sensor, 6 ... Wiring, 7 ...
Computer, 8 ... Wiring, 9 ... Motor or hydraulic device,
10 ... Bearing part, 11 ... Bearing, 12 ... Ground or rooftop, 13 ... Bearing, 14 ... Rotation axis, 15 ... Wind direction detection sensor, 16 ... Worker, 17 ... Switch, 18 ... Wiring,
19 ... Porous heliport, 20 ... Multi-groove heliport, 21 ... Mesh heliport, 22 ... Helicopter, 23 ... Down, 24 ... Heliport, 28 ... Tate, 29 ... Heliport (fixed), 30 ... Ground , 31 ... Main rotor, 32 ... Rotor rotating shaft, 33 ... Engine, 34 ...
Fuselage, 35 ... Horizontal stabilizer, 36 ... Vertical stabilizer, 37 ... Tail rotor, 38 ... Front leg, 39 ... Main leg, 40 ... Circulating flow, 41
... Streamers, 42 ... Soundproofing materials, 43 ... Suction holes for blowing down the main rotor, 44 ... Discharge ports, 45 ... Discharge ports, 46 ... Marks.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsumasa Sugiyama 1 at 60 Kyutansho, Iwatsuka-cho, Nakamura-ku, Nagoya, Aichi Nakabishi Engineering Co., Ltd.

Claims (3)

[Claims] 1. A heliport (1) having a helicopter landing attitude indicator mark (2) on its surface, comprising: a rotating shaft (14), a bearing portion (10), and a rotation driving means (9).
And a rotation control means (7) and a wind direction detection sensor (5), and around the rotation axis (14) so that the landing attitude instruction mark (2) matches the wind direction detected by the wind direction detection sensor (5). A heliport characterized by rotating the heliport (1). 2. Heliport according to claim 1, characterized in that the surface of the heliport (24) has a down-suction hole (43) for the main rotor (31). 3. A noise preventing rod (28) is provided outside the rotatable heliport (24), and a soundproofing material (42) is provided at a blow-down passage portion of the main rotor (31). The heliport according to claim 1 or claim 2.