JPH0321360Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a buoy launcher installed on an airplane or helicopter.

(Prior art) Some airplanes and helicopters are equipped with buoy launchers inside and outside the aircraft.For example, when a target drifting object is discovered at sea, it is used as a guide to inform other places (ships, etc.) of its location. In order to
A buoy that transmits ultrasonic waves, radio waves, etc. is launched from the launch device.

Figures 3 and 4 show an example of the assembly structure of the buoy launcher, with a base cap 1 at the rear end.
is equipped with a hollow container 3, which is the main body of the firing device, each having a cap receiver 2 fixed to its tip, and inside this container 3, a disk-shaped free piston 4,
For example, by sequentially inserting a buoy 5 containing an ultrasonic transmitter and a pad 6, and further attaching an actuator 7 charged with gunpowder to the base cap 1 and a cap 8 to the cap receiver 2, it can be integrated. formation. The cap 8 is attached by engaging a pin 9 protruding from its outer peripheral surface into a U-shaped groove 10 provided in the cap receiver 2.

Such a buoy launcher is usually installed inside or outside an airplane, etc., with the cap 8 facing diagonally downward. Now, when the actuator 7 is activated to explode the gunpowder, the free piston 4 moves forward due to the energy of the explosion, and the buoy 5 moves forward following this, destroying the pin 9 of the cap 8, and finally The free piston 4 and the buoy 5 are launched from the container 3 and fall, for example, near a marine target.

(Problems to be Solved by the Invention) However, in the conventional buoy launcher described above, if the free piston 4 loses its upright position when launching the buoy 5, the blast wave passes through and the free piston 4 falls into the container 5. will be left behind. and the free piston 4 left behind
Then, due to the vibration, it gradually moves towards the exit, and finally comes to leave the container 5, and at this time,
If the airplane was flying over a city on land, the size of the free piston (typically 120 mm diameter,
(20mm thick), there was a danger that it could cause major damage to people and property.

(Means for Solving the Problems) The present invention was made to solve the above problems, and its characteristics are that the container is formed by connecting a plurality of cylindrical bodies; The free piston is housed in the container in advance during connection, and a stepped portion is provided on the inner surface of the cylinder located on the open end side of the container to restrict the free piston from protruding and to allow movement of the buoy. It is in the point of composition.

(Function) In the buoy launcher with the above configuration, the free piston stored in the container when the cylinders are connected is prevented from flying out by the stepped portion and remains in the container when the buoy is launched, and as a result, Falling from an airplane, etc. is prevented.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

1 and 2 show the structure of a buoy launcher according to the present invention. Note that the same components as those shown in FIG. 3 are given the same reference numerals, and their explanations will be omitted. The feature of this embodiment is that the container 11 is formed by connecting a first cylindrical body 12a and a second cylindrical body 12b.
The base cap 1 is fixed to one end of a, the cap receiver 2 is fixed to one end of the second cylindrical body 13, and a stepped portion 13 is provided on the inner surface of the second cylindrical body 12b on the side of the cap receiver 2, that is, on the open end side. That's what I did. The stepped portion 13 is large enough to restrict the protrusion of the free piston 4 from the open end and to allow movement of the buoy 5.

Here, the first cylindrical body 12a and the second cylindrical body 12b
are made of injection-molded resin, for example, and have fitting portions 14 at each connecting end, and are joined by adhesive with the fitting portions 14 aligned. Therefore, when joining them, the free piston 4 is inserted in advance into either one of the first cylindrical body 12a and the second cylindrical body 12b.

This free piston 4 is then moved to the container 11
The buoy 5 inserted into the container transports it deep into the container 11, as shown in FIG. In addition,
The actuator 7 and the cap 8 are attached to the container 11 according to the procedure explained in FIGS. 3 and 4 above.

In the buoy launching device configured in this way, even if the actuator 7 is activated to launch the buoy 5, the free piston 4 is restricted from moving forward, that is, jumping out of the container 11, by the stepped portion 13.

In addition, in the above embodiment, the container 11 is
Although it is formed from one cylindrical body, the number of divisions is not particularly limited, and it may be formed from a larger number of cylindrical bodies. Further, the connection of the cylinders may be made removable, and in this case, for example, the fitting portion 14 may be a threaded portion, or a flange may be provided at the connection end and fastened with bolts. Furthermore, in the above embodiments, the cylindrical body is made of resin, but its material is not particularly limited, and may be made of, for example, steel or aluminum.

(Effects of the invention) As described above in detail, the buoy launcher according to the invention includes a container formed from a plurality of cylinders, a step provided on the inner surface of the cylinders on the open end side, and a container formed from a plurality of cylinders. Since the free piston is housed in the cylinder before it is connected, the stepped portion prevents the free piston from flying out when the buoy is launched, thereby preventing human injury caused by the free piston falling from an airplane, etc. This was effective in preventing property damage.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the structure of the buoy launcher according to the present invention, Fig. 2 is an enlarged sectional view of the main part thereof, and Figs. 3 and 4 show the assembled structure of the conventional buoy launcher. FIG. 4... Free piston, 5... Buoy, 7... Actuator, 11... Container, 12a, 12
b... Cylindrical body, 13... Step portion.

Claims (1)

[Scope of utility model registration request] In a device that stores a free piston and a buoy in a container and launches the buoy from the container by activation of an actuator, the container is formed by connecting a plurality of cylindrical bodies, and the buoy is formed within the container by connecting the cylindrical bodies. The free piston is housed in advance, and the inner surface of the cylindrical body located on the open end side of the container is provided with a stepped portion that restricts the free piston from protruding and allows the buoy to move. Buoy launcher.