DK145555B - TENSION TENSIONS FOR LIGHTING TENSIONS - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a trigger lighter for ignition of ignition cords and of the nature specified in the preamble of claim 1.

5 Such a puller is known from US Pat.

28 68 128, however, this prior art trigger is intended only for military weapons, such as bombs, projectiles, rockets or mines, and is only suitable for use with such military weapons.

10 In the specification for Danish patent application No. 914/75, a tooth of the kind in question is described, in which waterproofing is obtained by the firing cap of the cap being sealed with a foil.

15

Furthermore, it is known to protect pyrotechnic ammunition from environmental influences and from the penetration of humidity by adhesive strips.

20 Known anvil cap caps are sealed in such a way that a cover paper sealed with a suitable varnish is placed under a pressed spark plug.

This method of manufacture is used with all small cap weights 25.

However, the known waterproof lighters have the disadvantage that, when the primer is covered with paper and sealed, the paper dissolves when stored in water and moisture 30 or water can render the ignition rate temporarily unusable. The ignition can then only be used when first dried.

This is sought to be avoided by the present invention 35 in the preparation of a simple, absolutely waterproof, long-term storage cap which also does not lose its effect upon storage in water, but independent of any effects of any kind. the surroundings guarantee a safe ignition.

5

This is achieved according to the invention in that the pull lighter is designed as indicated in the characterizing part of the patent claim.

10 This design achieves absolute density even when stored in water for a long time, and the cap is easy to manufacture.

The invention is explained in more detail with reference to the drawing, which shows an embodiment of the longitudinal pull lighter.

The trigger lighter for igniting spark plugs preferably consists of a pot 1, a conventional hood cap and 20 consisting of a capsule 1.1, an anvil 1.2, a primer 1.3 and a cover foil 1.4. After inserting the cap into the pot 1, the pot and cap are inserted flush into a cap cap 3 and the cap with the pot is fixed by releasing the cap cap 25 3 · Sealing of the transfer cap of the cap cap is accomplished by means of a cartridge lacquer 2 or other suitable adhesive, an elastically deformable plastic material or sealing lacquer based on butyl rubber or other sealing lacquers with little or no water vapor permeability.

Other designs may also be envisaged, for example, the pot and cap prior to insertion into the cap cap 3 may be sealed by means of a foil 1.5 and / or lacquer 1.6, 35 and then inserted into the cap cap 3 and re-introduced.

For example, the pot may be made of nitrocellulose, plastic, metal, cardboard or paper. The thickness of the pot, especially on the firing side of the skill, depends in each case essentially on the strength of the ignition flame and on the ignition conditions of the ignition cord or the delay rates.

10 The thickness of the pot on the firing side of the cap must be adjusted so that the firing cap does not cause a damaging effect, but that the bottom of the pot, on the other hand, is pierced by the spark jet from the cap, so that the ignition and combustion of the spark plug or delay rates may advantageously occur on the entire end surface of the spark plug.

In practice, it has been found that it is advantageous to produce aluminum pots. In this embodiment, the thickness of the pot bottom is 0.1 to 0.15 mm.

In this embodiment, undesirable gas pressure peaks at ignition are avoided and the reproducibility of the ignition flame is assured in a total temperature range from 25 -40 ° C to + 70 ° C.

Generally, for optimum ignition of the spark plugs it can be said that it is advantageous to produce aluminum pot because the required temperature resistance and water vapor permeability are obtained with this material and the shock energy from the ignition flame is sufficient to withstand bottom of the pot and initiate an ignition of the underlying spark plugs.

35 145555 4 1 The pull-up lighter according to the invention achieves a waterproof, enclosed ignition unit which, independent of environmental influences and storage under water, is stock-resistant and fully functional for a long time, for example 10 to 15 years.

In addition, small anvil cap caps, for example with less than 5 mm diameter, can be made with a small charge weight in waterproof design in tensile lighters for ignition of ignition cords and delay kits, but also for ignition of propellant charge rate.

The waterproof ignition unit may conveniently be made from a commercially available cap and an additional 15 pots which are simple and inexpensive to manufacture, the cap being inserted into the pot, and after insertion into a cap cap, a fixed coupling of the cap and pot occurs.

20 The function of the trigger lighter for ignition ignition is such that the bottom of the pot 1 after ignition by means of an impact bolt 5 arranged in a housing 4 is pierced and an ignition cord and / or a delay kit and / or a drive kit 6 are ignited.