DE102010009326A1 - Parachute for use in combination with illuminants and lamps such as firecrackers, has cap consisting of nearly sealed material with air-permeable fabric in same dimension upstream to side of desired launching of air stream - Google Patents

Abstract

The parachute has a cap (1) consisting of a nearly sealed material with air-permeable fabric (2) in the same dimension upstream to the side of the desired launching of the air stream. The cap and the air-permeable fabric are connected with each other positively in their outer boundary area. The center of the cap is connected with the center of the upstream air-permeable fabric such that a center line (3), the cap and the air-permeable fabric are arranged between the surfaces facing each other.

Description

The invention relates to the configuration of a parachute, which is used in particular in combination with luminous bodies and light sources such as firecrackers in connection with their ejection from the air.

Parachutes for the ejection of luminaires are usually designed as usual parachutes, so have as a basic body a round or cruciform shaped cap, which is connected via suspension lines with the object to be transported. As an example, be on DE 10 2007 048 074 A1 directed. It is known that such designed parachutes of the proposed combination work relatively unreliable and have a high failure rate due to loss of functionality. During the dynamic process of parachute folding there is a considerable risk insofar as the risk of mutual obstruction of the suspension lines or the demolition of individual suspension lines is given in case of overload. Furthermore, partial or complete cap inversion occurs. These circumstances may result in partial or total failure of the parachute. This in turn leads to the crash of the filament and its loss of function.

Other patent applications, such as 10 2008 021 799 A1, deal with the conceptual design of fluorescent ammunition, without going into the specific construction of the associated parachute.

Generally known is a parachute consisting of a sealed cap and having a superimposed grid-like fabric on the side of engaging the air flow of the same diameter. This parachute is very often used as an auxiliary screen for opening a main screen. The probability of its opening is great.

The object of the invention is to develop a parachute for use in conjunction with fluorescent ammunition, in which the probability of its opening compared to the previously known known constructions is significantly greater.

The object is achieved by using, in combination with illuminated ammunition, first a parachute with a cap of a nearly dense material with air-permeable tissue upstream of the side of the desired airflow approach. This fabric may also be formed like a grid. Both surfaces are also known to have substantially identical dimensions in terms of their areal extent and are frictionally connected with each other in the edge region. This connection can be done by sewing or another suitable connection principle.

First, it is unusual to use this embodiment as a parachute in connection with light ammunition. Furthermore, this principle solution is further modified so that the center of the cap of nearly dense material is connected to the center of the upstream air-permeable fabric such that a central line connects both between the facing surfaces their possible distance limiting frictionally. This non-positive connection can be made directly with the air-permeable fabric in the center. At this point, the connection to the attachment point of the light ammunition is formed attacking in this case: the upstream in the direction of attacking the air flow of the cap-permeable fabric can be up to its edge zone by incorporated strength inserts, which are arranged uniformly to one another and executed substantially radially to be changed. These incorporated strength inserts have the effect of suspension lines. Since these stiffeners are integrated into the air-permeable fabric, they can not interfere with each other or otherwise collide with each other. They connect the zone in which the near-dense material is connected to air-permeable tissue upstream of the air flow engaging side, to the end point of the central line. From there, a connection with the attachment point for the light ammunition is available.

The strength inserts can also be carried out reaching into the middle of the cap.

The integration of the strength inserts may be tissue entanglement, stitching, gluing or the like. In any case, the reinforcements are continuously and permanently connected to the tissue to be reinforced frictionally.

A variation of the invention provides, at a relatively short distance in front of the attachment point of the light ammunition, but at a considerable distance from the end point of the center line, another parachute small dimensions, called in the further auxiliary parachute to attach to a connection. This auxiliary parachute serves as an opening aid, on the other hand in the opening phase for a slight delay attached light ammunition or the like and for activating the actual parachute.

Strength inserts, center line and connection with the mounting point for the ammunition are designed band or rope-shaped with sufficient static strength.

When using the solution according to the invention a significant improvement of the opening behavior and thus a reduction of unintentional crashes of the light ammunition or the like is given.

The invention will be explained in more detail below using an exemplary embodiment.

In the accompanying drawing shows

1 the basic structure of a proposed invention parachute for the discharge of fluorescent ammunition and the like,

2 the view of a cap of an inventively designed parachute,
in both cases with strength inserts reaching into the center of the cap.

A round tight cap 1 a lightweight synthetic fabric is a fabric of relatively high air permeability 2 superimposed in the same dimension in the form of gauze. The centers are between the two by a central line whose length is made smaller than the diameter of cap 1 and the tissue of relatively high air permeability 2 , positively connected with each other. In the peripheral edge zone is cap 1 with the tissue of relatively high air permeability 2 sewn example.

Furthermore, in the cap 1 and the tissue of relatively high air permeability 2 strength deposits 4 integrated on the cap 1 Beginning in the middle and at an angle of 90 degrees to each other over the tissue of relatively high air permeability 2 and integrated into it, to the middle of the fabric of relatively high air permeability 2 are formed leader and further by sewing with the endpoint 5 the middle line 3 connected. There is a connection from there 6 with the attachment point for the light ammunition 7 available.

The strength inserts 4 are up to the middle of the cap 1 continued and there by force-locking interconnected by sewing.

At a relatively small distance in front of the attachment point of the light ammunition 7 is in the connection 6 a small parachute 8th arranged to the parachute with cap 1 and tissues of relatively high air permeability 2 To help with opening.

The strength inserts 4 , Center line 3 and connection 6 are made of textile tape with sufficient static strength.

LIST OF REFERENCE NUMBERS

1

cap

2

upstream latticed tissue

3

middleline

4

strength liner

5

endpoint

6

connection

7

Attachment point of the light ammunition

8th

Auxiliary parachute

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007048074 A1 [0002]

Claims (6)

Parachute used in combination with illuminants and illuminants such as fireworks in connection with their ejection from the air, comprising a cap ( 1 ) of a near-dense material having air-permeable tissue upstream of the desired air flow interface ( 2 ) in the same dimension, cap ( 1 ) and upstream air-permeable tissue ( 2 ) are frictionally connected together in their outer edge region, the center of the cap ( 1 ) of nearly dense material with the center of the upstream air-permeable fabric ( 2 ) is connected in such a way that a middle line ( 3 ) Cap ( 1 ) and upstream air-permeable tissue ( 2 ) between the mutually facing surfaces whose possible distance is limited in their center frictionally connecting, from the end point ( 5 ) the middle line of a compound ( 6 ) with the attachment point for the ammunition ( 7 ) is present and at a relatively short distance in front of the attachment point of the ammunition ( 7 ), but at a significant distance from the endpoint ( 5 ) of the middle line ( 3 ), an auxiliary parachute ( 8th ) is trained. A parachute as claimed in claim 1, wherein in the upstream air-permeable fabric ( 2 ) extending into its edge zone inlays ( 4 ) are incorporated, which are arranged uniformly radially to each other and executed radially extending and with the end point ( 5 ) of the middle line ( 3 ) are positively connected with each other. A parachute according to claim 2, wherein the reinforcing inserts ( 4 ) from the edge region of the upstream air-permeable fabric ( 2 ) to the middle of the cap ( 1 ) are continued and attached to this continuously non-positively. Parachute according to one of claims 1 to 3, wherein the upstream air-permeable fabric ( 2 ) is formed like a grid. A parachute according to any one of claims 1 to 4, wherein at least one of the elements is a strength insert ( 4 ), Middle line ( 3 ) and connection ( 6 ) with the attachment point of the light ammunition ( 7 ) are designed band-shaped. A parachute according to any one of claims 1 to 5, wherein at least one of the elements has a strength insert ( 4 ), Middle line ( 3 ) and connection ( 6 ) with the attachment point of the light ammunition ( 7 ) are designed rope-shaped.

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