JPH11222199A - Parachute device for dropping type observation unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parachute device which surely takes out a parachute out of an observation unit main body, and opens the parachute in a stable attitude. SOLUTION: A parachute 12 is connected with an observation unit main body 11, and concurrently, is folded so as to be housed in the end part of the observation unit main body 11. The device is provided with a wind flap 17 having a slide part which is formed in a shape laid along an enclosure covering the housing portion of the parachute 12 and the outer side of the slide part 17a and the observation unit main body 11 provided for the lid part 17a in a form of a right angle. The parachute 12 is connected with the flap 17 with a connecting strap 15 which is so structured as to be cut off after the parachute has been opened. The wind flap 17 is provided with a delay strap 18 connected in a state that the tip end part of the slide part is temporarily fastened to the observation unit main body 11. Since the parachute 12 is directly connected with the wind flap 17, the release of the wind flap 17 thereby allows the parachute 12 to be surely opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parachute device in which a parachute is opened in a normal posture in a drop-type observation device in which an observer body is lowered in the air using a parachute.

[0002]

2. Description of the Related Art A parachute device of a structure in which an observer body is fired from a launch tube and dropped into the air is known among parachute devices of a drop-type observing device that lowers an observer body using a parachute.

However, in the prior art, there are cases where the parachute starts to be pulled out even when the main body of the observation device is being ejected, or the parachute starts to be opened before the completion of the injection and is opened simultaneously with the completion of the injection. Immediately after the launch, the parachute is pulled out after the injection is completed, but the parachute is pulled out, but the parachute is normal. However, there is a problem that a problem of falling without being opened is caused.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a parachute device in which a parachute can be reliably pulled out from an observer body and opened in a stable posture.

[0005]

Means for solving the problems The solving means comprises: an observer main body 11, a parachute 12 connected to the observer main body 11, folded and accommodated at an end of the observer main body 11, and a parachute. Cover part 12 and cover part 1
7a and the lid 17a are provided at right angles to the observation device body 1
1 is a slide portion 17b formed along the outside
The parachute 12 and the flap 17 are connected by a connecting cord 15 having a structure that is separated after the parachute is opened.

Further, in the present invention, the parachute 12 and the connecting cord 15 are such that a fastener 20 is attached to the parachute 12 and the connecting cord 15 is connected to the fastener 20.

[0007] In addition, the present invention relates to a wind flap 17
Is provided with a delay cord 18 which is temporarily connected to the observation device main body 11 at the tip of the slide portion 17b.

According to the present invention, since the parachute 12 and the wind flap 17 are directly connected, the parachute 12 is reliably opened by the detachment of the wind flap 17 and the parachute 12 is prevented from being opened. You.

Further, the present invention is characterized in that a plurality of leak holes 17h are formed in the lid 17a.

According to the present invention, the generation of a shearing force in the wind flap 17 due to the air flow flowing out of the injection pipe is reduced, and the breakage of the wind flap 17 is effectively prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a parachute device 10 according to the present invention has an observing body 11 having an observing equipment therein, and is connected to the observing body 11 and folded to be folded. A parachute 12 is provided at the tip of the main body 11. The periphery of the parachute 12 is surrounded by the surrounding portion 14, and the parachute 12 and a later-described wind flap 17 are connected by a connecting cord 15.

The wind flap 17 has a lid 17a and the surrounding portion 14 covering the parachute 12. Lid 17
2, a sliding portion 17s is provided at a right angle as shown in FIG. 2, and the sliding portion 17s is formed in a shape extending along the surrounding portion 14 and the outside of the observer main body 11.

The rear end of the slide portion 17s is connected to a delay string 18 which is a main part of the delay mechanism, and the other end of the delay string 18 is temporarily connected to the outer peripheral wall of the observation instrument body 11. Although the connection between the delay string 18 and the slide portion 17s is perfect, the connection between the delay string 18 and the observation device main body 11 is made by inserting the distal end of the delay string 18 into the observation device main body 11. Which does not escape in the launch tube but is released when fired from the launch tube.

A plurality of leak holes 17h are formed in the lid 17a of the wind flap 17, as shown in FIG.

The parachute lowering device 10 of the present invention is fired from a launch tube of an airplane or the like (not shown) with the lid 17a side of the wind flap 17 at the head.

At the moment when the launch tube is opened to the outside air,
Although the air in the firing tube flows out to the outside air due to the pressure difference, the generation of shearing force in the wind flap 17 is suppressed by the provision of the plurality of leak holes 17h in the lid 17a, and the wind flap 17 is damaged. Is prevented.

During the injection, the connection between the delay cord 18 and the observation device main body 11 is maintained, and the sliding portion 17b does not slide with respect to the surrounding portion 14 and the observation device main body 11. Parachute 1
2, so that the parachute 12 is prevented from opening at the stage during injection.

As shown in FIG. 4, the wind flap 17 is separated from the observation body 11 by the external air flow after the connection between the delay string 18 and the observation body 11 is released after the injection. Then, as the wind flap 17 is detached, the parachute 12 is pulled out by the connecting cord 15, and the parachute 12 is opened by the outside air flow. Observer 11
Can descend in the air at a stable low speed with the parachute 12 opened.

As described above, according to the present invention, the parachute 12
Is connected to the wind flap 17 by the connecting cord 15, and a plurality of leak holes 17h are formed in the lid 17a.
The wind flap 17 is prevented from being damaged by the shear force due to the air flow. In addition, since the connection between the delay cord 18 and the observer main body 11 is maintained during the ejection, the parachute 12 is prevented from being opened at the stage during the ejection.

The connection between the parachute 12 and the connecting cord 15 is performed by attaching a fastener 20 to the parachute 12.
The connection string 15 is tied to the stopper 20. The connection string 15 is released from being connected to the stopper 20 when a predetermined tensile force acts.

According to the present invention, as shown in FIG. 4, since the parachute 12 is extended with the detachment of the wind flap 17, the parachute 12 is reliably opened, and the parachute 12 is not opened. The situation in which the main body 11 of the observer falls is prevented.

[0022]

According to the present invention, since the parachute and the wind flap are directly connected by the connecting string, the parachute can be reliably opened by the detachment of the flap, and the parachute can be prevented from being unopened.

Also, according to the present invention, the delay cord delays the sliding of the sliding portion with respect to the surrounding portion or the observation device main body, thereby preventing the parachute from being opened at the stage of injection. be able to.

Further, according to the present invention, by forming a plurality of leak holes in the lid portion, generation of a shearing force in the wind flap due to the air flow can be reduced, and the wind flap can be effectively prevented from being damaged. .

[Brief description of the drawings]

FIG. 1 is a view showing a parachute device according to the present invention;
(A) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 2 is a view showing the wind flap of FIG. 1, wherein (a) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 3 is a perspective view showing the parachute device according to the present invention in an opened state;

FIG. 4 is an explanatory view showing an opening process of the parachute device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Parachute descent device 11 Observer main body 12 Parachute 14 Surrounding part 15 Connecting cord 17 Wind flap 17a Lid 17b Sliding part 17h Leak hole 18 Delay cord 20 Stopper

Claims (4)

[Claims] 1. An observer body (11) and a parachute (12) connected to the observer body (11) and folded and accommodated at an end of the observer body (11).
And a cover (1) for covering the accommodating portion of the parachute (12).
7a) and a wind flap (17) having a slide portion (17b) provided at right angles to the lid portion (17a) and configured along the outside of the observation device body (11), and the parachute is provided. (12) and the flap (1)
The parachute device for a drop-type observation device, wherein the parachute is connected by a connecting cord (15) having a structure that is separated after the parachute is opened. 2. A parachute (12) and a connecting string (15).
The parachute according to claim 1, wherein a stopper (20) is attached to the parachute (12), and a connecting string (15) is connected to the stopper (20). apparatus. 3. The wind flap (17) is provided with a delay string (18) connected to the observation instrument body (11) in a temporarily fixed state at the tip of the slide section (17b). 3. The parachute device for a drop-type observation device according to 1 or 2. 4. A cover (17) for a wind flap (17).
4. A parachute device for a drop-type observation device according to claim 1, wherein a) has a plurality of leak holes (17h).