Title:
ON-THE-WATER TARGET
Document Type and Number:
Japanese Patent JP2019124458
Kind Code:
A
Abstract:
To provide an on-the-water target equipped with a self-sinking system which allows the target to sink by itself in a short time with a simple configuration.SOLUTION: The self-sinking system of the present invention comprises a controller 21, a control valve 22 (first valve) and a low pressure operating valve 23 (second valve). At least one of the controller 21 and the control valve 22 is provided in the middle air column of the polyhedral structure. When the controller 21 receives a command signal or determines that a predetermined time has elapsed, it transmits an operation signal to the control valve 22. Based on the operation signal, the control valve 22 is opened and the gas in the air column 1 is released. The low pressure operating valve 23 is provided substantially equally to the plurality of air columns 1, and when the pressure becomes lower than the predetermined pressure, it operates automatically. The low pressure operating valve 23 is opened, and the gas in the air column 1 is released.SELECTED DRAWING: Figure 12
Inventors:
SASE KAZUMA
SAEKI HIROAKI
SAEKI HIROAKI
Application Number:
JP2019051366A
Publication Date:
July 25, 2019
Filing Date:
March 19, 2019
Export Citation:
Assignee:
JAPAN AIRCRAFT MFG CO
International Classes:
F41J2/00; B63B22/04; B63B22/28; H01Q15/18; H01Q15/20
Domestic Patent References:
| JPS60105994U | 1985-07-19 | |||
| JPH0582118U | 1993-11-05 | |||
| JPS5362100U | 1978-05-26 | |||
| JPH02280000A | 1990-11-15 | |||
| JPH11117577A | 1999-04-27 | |||
| JP2015526654A | 2015-09-10 | |||
| JP2002012185A | 2002-01-15 |
Attorney, Agent or Firm:
Daigo Maejima
Katsumi Utaka
Junichi Hatakeyama
Kenji Hashiba
Katsumi Utaka
Junichi Hatakeyama
Kenji Hashiba