JPH0343508A - Heliport - Google Patents

Abstract

PURPOSE:To reduce noise from a helicopter by providing a landing station and a take-off station, separately from each other, on the roof top of a building, and by providing a helicopter conveying means between the roof top and a hanger in the building. CONSTITUTION:A helicopter landing station 3 and a helicopter take-off station 4 are separately provided on the roof top 2 of the building 1. A helicopter hanger is provided in the building 1, and connections between the roof top 2 and the hanger is made by elevators 10 each having a plate 11 onto which a helicopter can be set by a conveying means 9. Further, A sound suppressing means such as a sound shield wall, a pick-up and the like, are provided around the roof top 2. Thereby it is possible to reduce noise from a helicopter.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to improvements in helipads, and more particularly to helipads that are installed on the roof of a building and are designed to eliminate as much helicopter noise as possible.

(Prior art) In an underdeveloped country like Japan, where roads are narrow, traffic jams caused by cars and other vehicles are common. Therefore, recently, it has been proposed to use helicopters as a means of transportation.

(Problem M that the invention seeks to solve) However, because helicopters make a lot of noise, it was not possible to set up a landing pad on the roof of a building or in the middle of a city. In particular, when a helicopter landing pad is installed on the roof of a building, there is a problem in that it creates noise around the building and disturbs the sleep of people around the building, especially at night. Therefore, unless such noise problems are solved, it is impossible to realize helicopters as a means of transportation.

An object of the present invention is to provide a helipad that can eliminate noise from helicopters as much as possible, and therefore allows helicopters to be freely launched and landed on the rooftops of buildings or in the city.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a helicopter landing station provided on one side of the rooftop of a building, a helicopter takeoff station provided on the other side of the rooftop of the building, Multiple helicopter hangars located within the building,
A helicopter transport means installed in a building to transport the helicopter between the helicopter landing station, the helicopter takeoff station, and the helicopter hangar, and a helicopter sound canceling means installed on the roof of the building. A helipad that is characterized by

(Operation) According to the present invention as described above, a helicopter descends to a landing station on the roof of a building and takes off from a takeoff station. When the helicopter is not in use, it is stored in a helicopter hangar. The sound of the helicopter can be canceled by the sound canceling means.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 1-3, an embodiment of a helipad according to the present invention is shown. The helipad in this embodiment is provided on the roof 2 of a building, for example, a building 1. This heliport includes a helicopter landing station 3 provided on one side of the rooftop 2 of a building 1 and a helicopter takeoff station 4 provided on the other side of the rooftop 2.

A helicopter 5 can land at a helicopter landing station 3, and a helicopter can take off from a helicopter takeoff station 4. The helicopter landing station is equipped with a 4M 111 G so that the helicopter operator can easily find the landing position, and the helicopter takeoff station is equipped with a similar marker A7 so that the helicopter can easily find the takeoff position. There is. As shown in FIG. 1, a plurality of helicopter hangars 8 are provided within this building. Each hangar can accommodate, for example, - helicopters.

A helicopter transport means 9 is provided in the building 1 so as to transport the flap between the helicopter landing station 3, the helicopter take-off station 4 and the helicopter hangar 8, respectively. In the illustrated embodiment, the helicopter transport means is separated from three elevators 10 installed approximately in the center of the building 1. These elevators are separated from, for example, a plate 11 on which a helicopter is mounted, a track (not shown) for supporting this plate so as to be movable in vertical and horizontal directions, and a driving means (not shown) for driving this plate. This plate is located at the first position located at the same level as the opening edge surface leading to the side entrance to the rooftop 2, and at the @2 position located at each hangar.
It is possible to move between the two positions. Accordingly, helicopters can be accessed from each hangar onto the rooftop and can be accommodated in each hangar from the rooftop. Helicopter sound canceling means are installed on the roof of the building.

In the illustrated embodiment, the sound canceling means includes a pickup means 20 for amplifying the sound from the helicopter 5, a sound detection means 21 for detecting the nature of the sound picked up by the pickup means, and a sound detected by the sound detection means. It is provided with a counter-sound generating means 22 that emits a counter-sound toward the helicopter 5 according to the nature of the sound. The counter-sound generating means generates a counter-sound that eliminates the sound from the helicopter. This will be discussed later. In the illustrated embodiment, this counter-sound generating means includes a plurality of speakers arranged around the roof of the building 1. These speakers are installed around the rooftop so that they project diagonally upward from the periphery of the rooftop, as shown in Figures 4 and 5, so that they can fire their counterattacks toward the helicopter flying above the rooftop. . When each speaker is installed on the roof in this arrangement, it is possible to effectively illuminate the area in front of the helicopter and to prevent the sound from the speakers from being scattered around the building, especially around the building near the ground. can.

In the illustrated embodiment, the pick-up means 20 comprises a plurality of 7-ton microphones, each of which is attached to a respective speaker serving as counter-sound generating means.

Each microphone picks up sound passing the distance from the helicopter 5 to the respective microphone. This is because the sound from a helicopter differs in frequency etc. depending on the IluM from the helicopter to each micro 7 ton.

The sound detection means 21 detects the nature of the sound picked up by each of these microphones. For example, it is detected that the sound picked up from a certain microphone is similar to a sine wave, and the sound picked up from another microphone is similar to a cosine wave.

The sound detection means detects the nature of the pinked-up sound, such as the form of frequency, etc., from each microphone, and detects the nature of the pinked-up sound, such as the frequency form, etc., and detects the nature of the pinked-up sound, such as the frequency form, etc. and control. This sound detection means comprises, for example, an analyzer for the frequency of the sound from each microphone and a sound generator for applying sounds of several frequencies to the respective loudspeakers.

Each speaker emits, for example, a sound having a frequency opposite to that detected by each microphone toward the helicopter.

For example, as shown in FIG. 6, suppose that the sound from a helicopter is a sine wave as shown in FIG. 6(a).

In this case, as shown in FIG. 6(b), a cosine wave (one phase shifted from the sine wave) is emitted from the speaker toward the helicopter. Then, as shown in FIG. 6(c), the sine wave and the cosine wave are superimposed and cancel each other out, thereby canceling out the sound from the helicopter as shown in FIG. 61ffl(d).

Generally, building 1 has a height of 3 cm as shown in Figure 7.
If the height of the tower is 00111 or higher, the noise level of a helicopter can be reduced to the level of a passenger car. Furthermore, as shown in FIG. 8, if the building is widened, the height can be reduced.

A building equipped with the apparatus of the present invention, as shown in FIG. 9, can be made even lower in height than the building shown in FIG. 8.

FIG. 10 shows another embodiment of the helipad of the present invention. The helipad in this example is building 1.
(with a landing station 30 for the helicopter 5 installed thereon, a takeoff station 31 installed on the roof,
It also includes a helicopter hangar 32 provided on the roof.

The hangar entrance 32a is connected to the landing station 30, and the hangar exit 32b is connected to the takeoff stage 31.

Helicopter 5 flies toward Building 1 and lands at landing station 30. After landing, the helicopter is moved from the landing station to the hangar and stored in the hangar, if necessary. When a helicopter takes off, it is moved from the hangar to a takeoff station, from which it takes off.

In this helipad, the landing station, hangar, and takeoff station are surrounded by a soundproof wall 33. In the illustrated embodiment, the soundproof wall is provided around the roof of the building.

Appropriate soundproofing means is provided inside this soundproofing wall. The height of this soundproof wall is approximately 20 m to 30 m in the illustrated embodiment.
It can be set to 11. Of course, the height of the soundproof wall is not limited to this.

In this embodiment, the noise from the helicopter is slowed down by the sound barrier and is not scattered around the building.

In the above embodiment, the helipad was installed on the roof of the building, but it may be installed in any open space, etc., and the sound canceling means may be configured to cancel sound from any sound source other than the helicopter. You can also do that.

(Effects of the Invention) As described above, according to the present invention, especially when a helicopter helipad is installed on the roof of a building, the noise of the helicopter can be eliminated or dispersed around the building! i
I never let it go L. Therefore, it is possible to install a helipad on the roof of a building, and helicopters can be used for transportation. It has the practical benefit of being able to be used as a flash.

[Brief explanation of drawings]

Fig. 1 is an elevational view showing an embodiment of the helipad according to the present invention installed on the roof of a building, Fig. 2 is an upper perspective view of Fig. 1, and Fig. 3 is a rooftop of a building built on the sea. A perspective view showing an example in which a heliport is provided in
FIG. 4 is a front view showing the structure of the sound canceling means of the present invention, and FIG.
The figure is a plan view of Fig. 4, Figs. 6(a), (b), (c) and v(d) are explanatory diagrams of the principle of the sound canceling means, @Fig. 7, Fig. 8,
FIG. 9 is a schematic diagram of the building, and FIG. 10 is a partially sectional elevational view showing another embodiment of the present invention. 1. Building, 2. Rooftop, 3. Helicopter landing station, 4. Helicopter take-off station, 5. Helicopter, 8. Helicopter hangar, 20. Pick-up means, 21. Sound detection means, 22.・Means for generating counter-sound. (Outside 4 people) Figure <%'X5 Figure 4 Figure 6 Figure 5 (d) Figure 9 Figure 10

Claims (1)

[Claims] 1. A helicopter landing station provided on one side of the rooftop of the building, a helicopter takeoff station provided on the other side of the rooftop of the building, and a plurality of helicopter hangars provided within the building; A helicopter transport means installed in a building to transport the helicopter between the helicopter landing station, the helicopter takeoff station, and the helicopter hangar, and a helicopter sound canceling means installed on the roof of the building. A helipad that is characterized by 2. The helipad according to claim 1, wherein the sound canceling means of the helipad comprises a soundproof wall provided around the roof of the building. 3. A pickup means provided on the roof of a building so that the helicopter sound canceling means picks up the sound from the helicopter; a sound detection means for detecting the nature of the picked up sound; 2. The helipad according to claim 1, further comprising counter-sound generating means for generating a counter-sound toward said helicopter in accordance with the nature of the sound detected by said sound detecting means so as to eliminate the sound. 4. The apparatus of claim 3, wherein the pickup means comprises a microphone. 5. The apparatus according to claim 3, wherein the counter-sound generating means comprises a plurality of speakers arranged around the roof of the building and configured to emit counter-sound toward a helicopter located above the roof.