JP4447151B2 - Air bag for hanging sac - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an airbag for a hanging sac, and more particularly to an airbag that is attached to a suspending sack that is cut off during a parachute descending to mitigate an impact.
[0002]
[Prior art and problems]
The hanging sack R wraps various equipment and is used on the back when carrying out operations, but when a paratrooper descends from the flying body, a parachute is attached to the back. Therefore, it is fixed to the front of the body in a detachable manner. And since the said hanging sac R has weight, before landing, this hanging sac R is cut off and it is made to land in a light state. This is to prevent a person who descends due to the weight when landing with the hanging sac R from being injured.
[0003]
As shown in FIG. 5, such a hanging sac R is formed by engaging a hook F fixed to the suspending sac R with a metal fitting M provided on a harness S for carrying a parachute. Suspended by And before the landing, the said hook F is removed from the metal fitting M, and the hanging sac R is cut off.
[0004]
As described above, since the hanging sac R is cut off before the landing of the parachute descending, the impact at the time of dropping is strong, and there is a possibility of damaging the equipment held in the suspending sac R.
[0005]
The present invention has been made in view of the above-described problems, and an object thereof is to provide an airbag for a hanging sac that can alleviate an impact when the hanging sac is dropped.
[0006]
[Means for solving problems]
To solve the above problems, lowering嚢用airbag suspended according to the invention has a closed space, and the airbags body foldable, provided at the bottom of the airbag body, the airbag A hanging sac that is provided with a check valve that allows air to flow into the body and prevents discharge, and an air hole that is provided in the airbag body, and that is detachably attached to a descendant. In the airbag fixed to the hanging sac that is separated from the descender after the descender descends from the flying object and before landing, the airbag further includes a storage unit that folds and stores the airbag body. The storage portion has a storage portion main body for storing the folded airbag main body, and a covering portion for covering the airbag main body fixed to the storage portion main body, and is formed at an end of the storage portion main body. After inserting the wire insertion loop formed at the end of the obscuration portion into the eyelet and then inserting the wire into the wire insertion loop, the airbag main body is stored in the storage portion main body, while the wire insertion loop is inserted. The wire is removed from the loop, so that air can flow into the airbag body, and an operating cord is connected to an end of the wire, and the operating cord is lowered. It is fixed to the person .
[0007]
According to the airbag for the hanging sac according to the present invention, the check valve is provided at the bottom of the airbag body and the partition wall 4 and the air hole is provided. Flows in and swells, and after landing, the inflowing air leaks from the air hole due to the impact, so that there is an advantage that the landing impact of the hanging sac can be effectively absorbed.
[0008]
【Example】
FIG. 1 is a cross-sectional view of a hanging sac airbag according to the present invention when inflated. As is clear from this figure, the hanging sac airbag E according to the present invention is made of a cloth and is a flexible rectangular bag. The airbag main body 1 is provided. The airbag body 1 is provided with shape retaining plates 2, 2 ′ at the upper end portion 11 and the bottom portion 12, and a cushion made of sponge adjacent to the shape retaining plate 2 disposed at the upper end portion 11 of the airbag body 1. Layer 3 is formed. For this reason, the airbag main body 1 can be folded between the shape-retaining plate 2 at the upper end and the shape-retaining plate 2 'at the bottom, and can be held in a thin state.
[0009]
The airbag main body 1 has a partition wall 4 in a direction perpendicular to the landing direction, and a lower chamber 13 and an upper chamber 14 are formed from the landing direction.
[0010]
A check valve 5 is provided at the bottom 12 of the airbag body 1 so as to pass through the airbag body 1 and the shape retaining plate 2 ′. Can be made to flow in. However, the check valve 5 has a structure that prevents the air inside the airbag body 1 from leaking out. Similarly, a check valve 6 is also provided in the partition wall 4. The check valve 6 allows air to flow from the lower chamber 13 to the upper chamber 14 of the airbag body 1, but from the upper chamber 14 to the lower chamber 13. It has a structure that does not allow the air to circulate.
[0011]
According to the present invention, the air bag body 1 is formed with air holes 7 that open into the air bag body 1 on the side surfaces thereof. The air hole 7 is provided in each of the lower chamber 13 and the upper chamber 14.
[0012]
In such a hanging sac airbag, a storage portion P for storing the hanging sac airbag is fixed to the shape retaining plate 2 ′ of the upper end portion 11. FIG. 2 is a plan view when the storage portion P is opened. As is clear from this figure, the storage portion P is folded and the storage portion to which the airbag body 1 in a thin state is fixed. It has a main body 81. Folding pieces 82 are formed on the upper and lower portions of the storage unit main body 81, and a covering portion 83 that is a scoop is formed on one side surface. A plurality of eyelets 832 are provided in the end portion 831 of the obscuration portion 83 in the vertical direction of the drawing, and a plurality of rubber bands 833 are provided in parallel with the vertical direction from the end portion 831 to the storage portion main body 81.
[0013]
FIG. 3 is a rear view of the storage portion P. As is clear from this figure, the end portion 811 of the storage portion main body 81 is provided with a plurality of loops 812 in the vertical direction of the drawing. The loop 812 is provided at a position corresponding to the eyelet 832, and the airbag body 1 can be accommodated in the accommodating portion P by inserting the loop 812 into the eyelet 832. Further, straps 814 extend from the central portion of the periphery of the storage unit main body 81 at four locations. The strap 814 is for attaching a suspension sac airbag to the suspension sac R, and has a structure in which a male buckle 815 is provided at one end portion and a female buckle 816 is provided on the storage unit body 81 side. A loop is formed by fitting the male buckle 815 and the female buckle 816 together.
[0014]
In order to store the airbag main body 1 in such a storage portion P, the upper and lower folding pieces 82 are folded on the airbag main body 1 that has been folded into a thin shape, and then the covering portion 83 is folded, whereby the airbag main body 1 is folded.掩 completely. An eyelet 832 is formed at the end 831 of the obscuration part 83, while a loop 812 is formed at the end 811 on the back surface of the storage body 81, so that the loop 812 is inserted through the eyelet 832. By passing the wire 9 through the loop 812, the airbag body 1 can be stored in the storage portion P (see FIG. 4). At this time, since the rubber band 833 is provided in the obscuration portion 83, a force is urged in a direction in which the obscuration portion 83 opens.
[0015]
An operating line 10 is provided at the end of the wire 9, and the other end of the operating line 10 is fixed to the bracket M of the above-described parachute harness S (to a descender) (see FIG. 5). reference).
[0016]
In using such a sac airbag, the strap 814 is wound around a lateral belt RS that tightens the sac R laterally as shown in FIG. 5, and the male buckle 815 and the female buckle are wound around. 816 is engaged and attached to the bottom of the hanging sac R. One end of the operating cord 10 is fixed to the metal fitting M of the parachute harness S as described above.
[0017]
In such a state, when the hanging sac R is cut off, the operating cord 10 is strained as the hanging sac R falls, and eventually the wire 9 fixed to the tip of the operating cord 10 is pulled. It is removed from the loop 812. When the wire 9 is pulled out in this way, the loop 812 falls out of the eyelet 832. At this time, since the rubber band 833 urges the force in the direction in which the covering portion 83 opens, the rubber band 833 facilitates the removal of the loop 812 from the eyelet 832, and after the removal of the loop 812, the covering portion 83 is improved. Will open.
[0018]
When the storage part P is thus opened, air flows into the airbag body 1 from the check valve 5 provided on the bottom 12 of the folded airbag body 1. First, air flows into the lower chamber 13, and then the air in the lower chamber 13 flows into the upper chamber 14 through the check valve 6, and the airbag body 1 is inflated as shown in FIG. 1.
[0019]
When landing in such a state, first, the air in the lower chamber 13 leaks from the air hole 7 and is crushed, and the air in the upper chamber 14 also leaks from the air hole 7 with a slight time difference. Thus, the air leaks sequentially from the lower chamber 13 and the upper chamber 14, whereby the impact of the hanging sac R can be reduced. By providing the lower chamber 13 and the upper chamber 14 in this way, it is possible to absorb the shock sequentially, and there is an advantage that the shock absorption is improved. Further, after the lower chamber 13 and the upper chamber 14 are completely crushed, the shock is buffered by the buffer layer 3 formed in the upper portion of the storage portion.
[0020]
【The invention's effect】
As described above, according to the airbag for the hanging sac according to the present invention, the check valve is provided in the bottom of the airbag body and the partition wall 4 and the air hole is provided. While air flows in from the check valve and swells, and after landing, the air that has flowed in leaks out of the air hole due to the impact, so that there is an advantage that the landing impact of the hanging sac can be effectively absorbed.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an embodiment of a sac airbag according to the present invention.
FIG. 2 is a plan view of a storage unit for storing a sac airbag.
FIG. 3 is a rear view of a storage unit for storing a sac airbag.
FIG. 4 is a plan view when the storage unit is closed.
FIG. 5 is a plan view when the suspension bag airbag is attached to the suspension bag.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Airbag main body 11 Upper end part 12 Bottom part 13 Lower chamber 14 Upper chamber 2 Shape retention board 2 'Shape retention board 3 Buffer layer 4 Bulkhead 5 Check valve 6 Check valve 7 Air hole 81 Storage part main body 811 End part 812 Loop 814 Strap 82 Folding piece 83 Covering part 831 End part 832 Eyelet 833 Rubber band

Claims (6)

Has a closed space, and the airbags body foldable, said provided at the bottom of the air bag body, can flow air into the air bag body, and a check valve to prevent discharge, the A hanging sac provided in an air bag body, and having an air hole for discharging air, and is detachably attached to a descender, wherein the descender descends from the flying object before landing In the airbag fixed to the hanging sac that is separated from the descendant,
A storage unit for storing the airbag body by folding;
The storage unit has a storage unit main body that stores the folded airbag body, and a covering part that covers the airbag main body fixed to the storage unit main body, and has an eyelet formed at an end of the storage unit main body. After the wire insertion loop formed at the end of the obscuration portion is inserted into the wire insertion loop, the wire insertion loop is used to store the airbag body in the storage portion body, while the wire insertion loop The wire is removed from the air bag so that air can flow into the airbag body, and
An operating cord is connected to an end of the wire, and the operating cord is fixed to the descender . The suspension bag airbag according to claim 1 , wherein a biasing member is provided in the covering portion so that a force is biased in a direction in which the covering portion opens . The airbag body forms a lower chamber and an upper chamber provided with a partition wall perpendicular to the landing direction therein, said partition wall, but the air in the upper chamber from the lower chamber flows to the lower chamber from the upper chamber The suspension bag airbag according to claim 1 or 2 , wherein a check valve that does not allow air to flow is provided , and the air hole is provided in both the lower chamber and the upper chamber . The storage body is provided with a possible form hanging sac fixing loop strap claims 1 to placing any one SL 3, characterized in that it is fixable to the lower Notei part suspended by the strap Air bag for hanging sac. The suspension bag airbag according to claim 4 , wherein the strap is attached so as to extend from substantially the central part of the periphery of the four places of the storage body . The strap includes a male buckle at one end, a female buckle on the storage unit main body side, and the male buckle and the female buckle are fitted to form the hanging sac fixing loop. The airbag for a hanging sac according to claim 5, wherein the airbag is configured.

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