RU22120U1 - PARACHUTE - Google Patents

Description

parachute IRISH1M | 1M | II1

MPK V64D 17/02

2001131465

The utility model relates to parachute technology, in particular, to the designs of dome-training parachute systems,

used by novice parachutists to make training jumps from airplanes and helicopters.

A well-known sports training parachute (Copyright certificate No. 393891, V64D 17/14, 12.11.66), the dome of which contains two controllable slots on its back. The specified parachute has insufficient maneuverability and insufficient reliability in the case of its use for beginner parachutists.

Known guided parachute (US patent No. 4.638.961, NKI 244-142, from 07.30.84) containing windows located symmetrically relative to the main plane of symmetry and slings connecting different windows. This parachute does not provide sufficient reliability if used by a novice paratrooper.

Known parachute (US patent No. 3.809.342, IPC V64D 17/02, NKI 244-145, 09/29/69), which has cutouts along the front and rear edges of the dome directed toward the center of the dome along its longitudinal axis. The disadvantage of this parachute is that the front cut-out provides free flow access under the canopy in cases where the horizontal component of the flight speed is significant. In the absence of a horizontal component of the flight speed, the section does not work, a parachute turn is impossible, which in turn reduces landing safety.

Another of the known parachute designs used for training jumps of beginner paratroopers is the D-1-5U parachute (No. 9254 -70 TO, No. 9255 - 70 IE), consisting of a round percale dome with three vertical holes on its back surface and a sling of cotton cord.

This parachute allows you to use it in three schemes for introducing the parachute into action, which provides the methodologically necessary sequence for training the paratrooper.

In the first parachute deployment scheme, the parachute system includes a round percale dome with three vertical openings on the back surface and slings of cotton cord placed in a cover, which in turn is laid in a satchel, which is chained with a forced stripping link associated with

a t-to-exhaust link taped aboard the aircraft, the top of the cover also being connected to said exhaust link.

The indicated scheme for putting the parachute in action allows you to reliably open the parachute without the participation of a person, even in the event of a random fall after separation from the aircraft.

In the second scheme for putting the parachute into action, the case with the parachute laid in it is connected to the ball exhaust parachute and with it laid in the satchel of the parachute. After stripping the knapsack with an exhaust link, a ball exhaust parachute enters the stream and pulls the cover off the parachute dome.

This scheme allows you to safely perform jumps to parachutists who have mastered the separation from the aircraft. In this case, the parachute system is activated automatically.

In the third scheme for putting the parachute into action, the satchel is healed with a manual stripping link.

This scheme allows you to safely perform jumping parachutists who have mastered separation from the aircraft and free fall. During a free fall, the paratrooper manually strikes the satchel. A ball exhaust parachute enters the stream and pulls the cover from the dome.

One parachute deployment scheme can be easily and quickly converted to another, which makes it possible to effectively use the parachute system.

The disadvantage of the design of the parachute used in the D-1-5U system is the presence of a constant horizontal velocity and direction in the canopy, which in most cases worsens the landing conditions of paratroopers, reducing the safety of landing.

Another serious drawback is the use of cotton materials in the manufacture of a parachute, which limits its service life and makes it difficult to manufacture due to their acute shortage.

Another design of the parachute is known, used in the D-6 series 4 system (No. 16920 - 80TO), which includes the entire round nylon dome with slings and with two helmets that open its lower edge at the points of its intersection by the plane of symmetry of the dome, and control slings connected with control helmets. This parachute is the closest prototype of the proposed solution. In the product D6 series 4, the specified parachute works reliably. In the event of a change in the deployment scheme and the use of a parachute of this design, in particular, in the operation scheme of the D-1-5U product, reliability decreases sharply. Replacing a round percale dome with three vertical openings on the rear surface and cotton slings with a round nylon dome with slings and with two control slots extending its lower edge and nylon control slings, due to a change in the commissioning scheme, leads to partial

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failures caused by the overlap of the dome with slings in the process of its opening (Report No. 15943-78).

The proposed utility model is aimed at increasing the safety level of jumping, while maintaining high technical characteristics for controllability of the parachute and the possibility of using the parachute in any of the above three schemes for putting it into action, thereby providing the methodically necessary sequence for preparing the parachutist. The proposed utility model also allows you to expand the range of textile materials and cords used in the manufacture of the parachute.

This problem is solved by the fact that in a parachute, which includes a round nylon dome with nylon slings and control lines, with two guides; control shafts, open them; their lower edge at the points of intersection with the vertical plane of symmetry of the dome, the mentioned sh; control shafts are connected along the lower edge of the dome with a jumper assembled in a zigzag shape and fixed in this position by an elastic ring.

The connection of the slots of the dome along the lower edge with a jumper assembled in a zigzag shape and fixed with an elastic ring prevents the slings from being thrown over the dome during its pulling out and the first stage of filling, thereby eliminating overlap and ensuring reliable operation. In the process of opening the parachute, the acting aerodynamic forces pull the jumpers from the elastic rings and straighten them, providing the necessary controllability of the filled dome.

The combination of all the essential features mentioned above is aimed at solving the problem and helps to ensure reliability when using the parachute in various schemes for putting the parachute in action while maintaining high technical

characteristics and controllability of the parachute, providing favorable landing conditions.

The proposed technical solution is illustrated by drawings.

Pa fig. 1 shows the laying of a canopy of a parachute. Pa figure 2 shows a General view of the dome after its full disclosure. Pa fig.Z presents the first scheme for putting the parachute into action, in which the knapsack is stripped by an exhaust link connected to the aircraft, and the mentioned exhaust link pulls the cover from the canopy of the parachute.

Figure 4 presents the second scheme of putting the parachute into action, in which the knapsack is stripped by an exhaust link connected to the aircraft, and the cover is inserted into the air stream with the dome laid in it and the cover is pulled from the dome by a ball exhaust parachute.

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input into the aerodynamic flow of the cover with a dome laid in it and pulling the cover from the dome is carried out by a ball exhaust parachute.

The parachute, made in accordance with the proposed utility model, contains, for example, a round nylon dome 1. The shape of the dome in plan can also be made in the form of a polygon. The base of the dome can be made, for example, in the form of a flat circle, as well as in the form of a non-planar circle (figure 2). On the basis of the dome 1, frame ribbons are sewn 2. On the dome 1 between the frame ribbons 2 are formed two control heli 3, spreading the lower edge 4 of the dome 1 at the points of its intersection with the vertical plane of symmetry of the dome 1. The control slots 3 on the lower edge 4 are connected, for example , kapron cord jumper 5, assembled in a zigzag manner (Fig. 1) and fixed in this position by an elastic ring 6. Control slots 3 are connected to control lines 7.8. The dome 1 also has the main slings 9. The slings 9 and the control lines 7.8 are made, for example, of a nylon cord. The dome 1 with slings 7,8,9, laid in the cover 10, is located in the knapsack 11. The knapsack 11 is zipped with a notch link 12, the latter in the first and second parachute deployment schemes connected via an exhaust link 13, for example, with an aircraft cable 14 apparatus 15.

The proposed parachute works reliably in all three schemes for putting the parachute into operation.

In the first scheme of putting the parachute into action when separating the paratrooper 16 from the aircraft 15, the exhaust link 13 attached to the cable 14 of the aircraft 15 extends the notch link 12 of the knapsack 11, and then extends the cover 10 with the dome 1 to the full length. Slings 7,8, 9 come out of the honeycomb (not shown in the drawing) of the cover 10, and then the exhaust link 13 pulls the cover 10 from the dome. The connection of the control slots 3 of the dome 1 with a jumper 5 assembled in a zigzag shape and fixed with an elastic ring 6 eliminates the throwing of slings 7,8,9 on the dome 1 during its pulling out and the initial stage of filling, thereby eliminating overlap and ensuring the reliability of its operation. During the subsequent filling of the dome, the acting aerodynamic forces pull the jumpers 5 from the elastic rings 6 and straighten them. The dome 1 is completely filled, and the exhaust link 13 with the notch link 12 of the knapsack 11 and the cover 10 remain on the aircraft 15.

Similarly, the dome 1 reliably works in the second scheme of putting the parachute into action, in which the cover 10 and the dome 1 are connected with a ball exhaust parachute 17. After separating the paratrooper 16 from the aircraft 15, the exhaust link 13 through the link of the notch 12 strikes the knapsack 11. The ball exhaust parachute 17 mounted in the knapsack 11, under the action of the built-in spring (not shown in the drawing) enters the air stream, and then pulls the cover 10 with the dome 1 out of the knapsack 11. The cover 10 leaves the dome 1 and the last

filled, while the ball exhaust parachute with a cover 10 remain on top of the dome 1, connected with it by a connecting link (not shown in the drawing). In this scheme, the dome 1 works reliably, since the presence of a jumper 5, assembled and fixed by an elastic ring 6 eliminates overlap. This scheme also allows you to open the parachute without human intervention.

In the third scheme of putting the parachute into action, there is no exhaust link 13 connected to the aircraft 15. A manual strike section 18 is introduced into the parachute system. The parachutist 16 is separated from the aircraft 15, and during the free fall using the manual strike section 18, the backpack 11 is opened. Ball exhaust parachute 17, falling into the aerodynamic flow pulls the cover 10 from the dome 1. The design of the dome, made in accordance with the proposed utility model, eliminates the overlap of the canopy with 1 slings 7.8.9 and ensures reliable operation of the parachute.

Thus, the design of the proposed parachute allows, while maintaining its high technical characteristics for controllability of the parachute and the possibility of using it in all three schemes for putting the parachute into action, to ensure the reliability of the introduction of the parachute and increase the safety of jumps, as well as improve the conditions for landing the parachute, as well as expand the range textile materials and cords used in the manufacture of a parachute.

The ability to quickly and easily change the commissioning scheme can also increase the convenience and efficiency of the training parachute system.

1. The certificate of authorship No. 393891, V64D 17/14, dated 12.11.66.

2.US Patent No. 4638931, 244-142, dated July 30, 1984.

3.US Patent No. 3809342, 244-145, from 29.09.69g.

4. Parashut products D-1-5U (No. 9254 - 70 TO, No. 9255-70 IE)

5. Parashut products D-6 series 4 (.№16920 - 80 TO) - a prototype.

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Sources of information:

Claims (1)

A parachute, which includes a round nylon dome with nylon slings and control lines, with two control slots opening its lower edge at the points of its intersection with the vertical plane of symmetry of the dome, characterized in that, in order to increase the level of safety of jumping while maintaining high performance according to parachute controllability, said control slots are connected along the lower edge of the dome by a jumper assembled in a zigzag shape and fixed in this position by an elastic ring.