DE1219363B - Electrical safety ignition head for projectiles - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

F071

German class: 72i-6

Number: 1219 363

File number: S 904401 c / 72 i

Filing date: April 9, 1964

Opening day: June 16, 1966

The invention relates to an electrical safety fuse head for projectiles, the electrical Ignition circuit has a generator, a squib, a fixed and a movable contact element, which is normally held in place by locking devices from the fixed contact and is only released when the projectile is fired due to the inertia effect, and then under the pressure a relaxing spring to touch the stationary contact element.

An electric fuse for twistless projectiles with one for charging a capacitor is previously known certain electric generator, the rotor of which is driven by a propeller protruding from the projectile is driven. On the generator shaft there is a switch in the charging circuit of the capacitor a rotating contact that interacts with a stationary contact to make contact arranged, wherein the contact rotating together with the generator shaft is designed in such a way that it moves radially against an elastic force under the influence of centrifugal force and the fixed contact only when a limit value of the speed of the rotor of the generator is exceeded touched. This known detonator has the particular disadvantage that if you want an independent one Avoid turning the propeller and triggering the ignition as a result, a additional locking device must be provided, either manually or via an additional Operating mechanism is unlockable.

In another known electrical safety fuse head for projectiles, in which also a Rotor is held with movable contact by means of a special locking device, must also intervene an operator to unlock the locking device so that the Rotor with the moving contact is released before the projectile is deployed.

Furthermore, a generator for an electric projectile fuse is known in which in an ignition circuit between the generator and a squib, a fixed contact element and a normally Movable contact element held in the open position by locking elements is provided are, the movable contact through the locking members due to the inertia during firing of the projectile is released and then under the influence of a spring with the fixed contact comes into contact. A particular disadvantage of this device is that the contact between the movable contact and the fixed electrical safety fuse head for projectiles

Applicant:
5

Poudreries Reunies de Belgique,

Societe Anonyme, Brussels
Representative:

ίο Dipl.-Phys. Dr. W. Andrejewski, patent attorney,
Essen, Kettwiger Str. 36

Named as inventor:
is Charles Auguste Somville,
Burcht-lez-Anvers (Belgium)

Claimed priority:

Belgium 10 April 1963 (630 831)

contact under the influence of violent shocks

as despite the spring that is on the moving contact acts, cancels, since the moving contact only rests against the fixed contact. This is Safe ignition when the projectile hits is not guaranteed, but rather must be carried out with allies be expected.

Also known is an inertia fuse for projectiles with a fixed position in the fuse housing Primer and against the primer, sprung, movably mounted, hollow striker carrier, locked in its inoperative position by one or more safety balls before being fired which interact with two movable bodies of inertia, one of which is cushioned is and when firing releases the safety balls and the other releases them from the safety position displaced, whereby the spring-loaded inertial body is inside the hollow striker carrier is located and the other inertial body encloses the striker carrier and in the secured Position is supported on the locking balls. Such persistent detonators, in which the ignition as a result of the firing pin penetrating the squib, have the training electrical safety ignition heads not significantly influenced.

The object of the invention is to provide an electrical safety ignition head for projectiles

609 579/47

3 4

create, in which a mechanical locking terminal for an electrical connection device is avoided and the locking means for the line between the generator and the squib the parts carrying electrical contacts are provided in this way.

forms are that an intervention of the operator. Furthermore, the invention recommends that the deeply

manual personnel is no longer required. Ins- 5 pulled shell and the partially enveloping it

In particular, it should be prevented that the safety insulating sleeve lies in the same cutting planes

unit firing head prior to the use of the projectile, d. H. Have longitudinal slots, the inner ends of which in a

can be sharpened before it is fired. Cross-sectional plane of the unit lie, and that

This object is achieved by the invention in the case of an electrical ground plane between the ground plane in this cross-sectional plane

tric safety ignition head for projectiles of the one io the shock limiter and the generator

type described in that the is fixed and through these pairs of contactors to the outside

standing contact element as a coaxial, slightly conical metal nose of the projectile reaching radial tongues

has expiring approach of an anvil of the projectile.

igniter is formed and in the front end The advantages achieved by the invention are

of a coaxial, tubular guide element is to be seen essentially in the fact that mechanical,

is set, which in the rear part of the moving lock to be released by operators by hand

Union contact, an end stop and between animal means are avoided and the locking means

both carry the compression spring so that the parts carrying the contacts are blocked in such a way.

of the movable contact in the rest position are locking balls that an intervention of the operating

is no longer required by hand in immediately prior to the moving contact and

formed lateral holes of the pipe guide used at the same time the safety ignition according to the invention

and by a head slidably mounted on the pipe guide prior to the use of the projectile, i. H. before that

arranged, but in the rest position by a pipe runner shot, can not be sharpened without authorization. A

are held, which in turn by elastic further advantage is to be seen in the fact that the movable

Tongues of a wedged sleeve 25 on the pipe guide lent contact element due to its flawless

is locked, and that at the moment of firing locking the electrical ignition circuit itself at

due to the backward movement of the tubular runner, hard knocks during transport

Holds open over the elastic tongues until it stops so that no ignition spark can occur,

strike in renewed locking position of the tongues while it is released after the launch

Locking balls and thus the movable contact releas- 30 the projectile so firmly on the stationary

are bar, such that the latter is postponed when the contact is released that when striking

Acceleration of the projectile by the compression spring of the projectile as a result of the now unconditional

can be pushed forward onto the fixed contact. safely closed circuit to prevent the detonation

This measure of the invention has the consequence that it is true. As a result, there are certainly none

a very solid and therefore excellent consortium can be expected.

clock between the fixed and the movable contact The invention is based on one only

clock results, since the latter is closer to the fixed contact on the drawing showing the embodiment

is pushed. As a result, the moving can be explained; it shows

Not borrowed contact as a result of impact of the Fig. 1 in a schematic representation of a side fixed Release contact. Since the moving view of a projectile in which an inventive Contact on a straight line to the established electrical safety fuse head Contact moved, d. H. is built on the shortest,

Ways is the one to complete the circuit. F i g. 2 shows a section A from the item required time very briefly. according to FIG. 1 with the safety according to the invention. Additional features essential to the invention are shown in longitudinal section in 4.5.

listed below. According to a preferred embodiment, F i g. 3 and 4 cross-sections through the object approximately form, the invention provides that the electrical according to F i g. 2 according to the lines HI-III and IV-IV, Irish safety fuse head in the front end F i g. 5 shows a side view of a projectile according to the invention between the adhesive head and the corresponding safety ignition head,
Complete unit that can be inserted into the bullet sleeve forms 50 Fig. 6 a longitudinal section as in Fig. 2, wherein and consists of a completely isolated from the outside the safety detonator head according to the invention in the front main part and an associated metallic main part behind it after the projectile has been fired, where that is posed,

front main part a front insulating sleeve and a FIG. 7 an impacting projectile with the inventor embedded deep-drawn insulating shell on the 55 appropriate safety ignition head and

has, in which a hammer, a shock limiter, Fig. 8 is a partial longitudinal section through the

a ground plate, the generator, the anvil with the object according to FIG. 7th

its the fixed contact forming ko- The illustrated in the figures according to the invention

axial approach are firmly inserted and on the safety ignition head has a power generator 1, rear tube 60, which surrounds the fixed contact, will henceforth be referred to as the generator, which on

approach, which in turn rests an anvil 2 encased in an insulating shell, which is located in the bottom of a deep cylindrical

front end of the pipe guide is pressed on, dial-cylindrical shell 3 made of insulating material, for example

rend the rear main part from the pipe guide with way made of plastic, is arranged. The anvil 2

the locking balls, the external tubular runner has a slightly conical rearward-facing and its locking bushing with the tongues so-65 contact element 4, which in the longitudinal axis XY

like the moving projectile located in this pipe guide.

borrowed contact, the compression spring and the end In the insulating shell 3, a shock limiter 5 is attached.

There is a stop, at the rear end of which there is an arrangement made of relatively elastic material.

Claims (1)

5 6 In the insulating shell 3, the connecting element 27 extends along the generator 1. It is in this for a certain number of longitudinal slots 6 in front of longitudinal axis XY of the projectile coaxial position through see which locks properly up to the contact plane between the gene adhesive head 30, rator 1 and the shock limiter 5 run. The depth of this electrical safety fuse head works Shell 3 is surrounded by a sleeve 7, which is also 5 as follows: consists of insulating material and also in the First, the projectile is systematically opened The longitudinal direction of the generator 1, but from its voltage of the electrical circuit of the generator 1 Rear edge from, extending longitudinal slots 8 secured, since the locking balls 15 the movable has the width, number and arrangement of the front contact 22 against the action of the compression spring correspond to said longitudinal slots 6 and also hold back 23. These locking balls are through if fixed in the side openings up to the connecting plane between the gene-end tube runner 16 rator 1 and the shock limiter 5 run. hold, because the tubular runner through in this blocking position In this plane, i.e. between the generatori the tongues 17 of the locking device that reach behind it the shock limiter 5, a ground plate 9 socket 18 is properly assigned to the corresponding, which at their edge radial tongues 10 15 set part of the pipe guide 13 between the having the shoulder 19 and the head of the end stop 20 through the corresponding longitudinal slots 6, 8 go through the corresponding edges. is blocked. The movable contact 22 is thus located The plate 9 is relatively thin and elastic. slightly removed from the contact element 4 of the The insulating shell 3 has a rear bosses 2, which in turn is in direct contact with the running pipe socket 11, through which 20 generator 1 is coaxial. the hollow contact element 4 of the anvil 2 goes through when the projectile is fired and the initial speed of the tubular runners 16 in the front part 12 ner Pipe guide 13 is used. This element is thrown backwards, i.e. H. against the end point lateral holes 14, in the locking balls 15 stop 20, where he is the resistance of the elastic engage, which overcomes tongues 17 inward into the pipe guide 25. At the end of the movement of the Elements 13 protrude and in this position of the tubular runner 16, the tongues 17 automatically snap into place be held by a tubular traveler 16, which the annular groove 21 in the interior of the tubular traveler and in turn, by means of elastic bent outwards, hold it firmly in such a position, Tongues 17 of a sleeve 18 is locked. that he releases the locking balls 15 completely. Of the The locking sleeve 18 surrounds the remote 30 movable contact 22, but also sets End of the pipe guide 13 and is unshouldered between a due to the persistence of its backward movement 19 of this remote end and the head against the action of the compression spring 23 continues. if an end stop 20, which in the threaded part of the projectile on its trajectory, the acceleration free At the end of the pipe guide 13 is screwed in, the supply phase has ended, the spring 23 expands held. The tubular traveler 16 has in its inner 35 and presses the contact 22 forcefully on the surface an annular groove 21, in which the tongues 17 a slightly conical end of the contact element 4 of the can rest. Anvil 2. This will make the circuit In the pipe guide 13 a movable contact from the generator 1 to the squib of the projectile ge-22 is inserted, the front conical part of which closed, as shown in FIG. 6 is shown. When a locking ball 15 pushes in the locking position. Between the 40 impact on an obstacle or the target, the end stop 20 and this movable contact 22 locking between the movable contact 22, a compression spring 23 is used. The end stop and the contact element 4 by the inertial forces 20 carries a connecting terminal reinforced in an axial bore. At this moment the movement 24 results, at which one end of an electrical connection of the adhesive head 30 via the in the head of the in FIG. 5 connecting line 25 is attached, the other end 45 of the aggregate shown inserted hammer 31, leads to the squib. The front part 12 of the barrel, which is located in the head of the projectile between the shock guide 13, is in an insulated support shell 26, limiter 5 and the adhesive head 30; enveloped and to trigger the ignition on the connection. Such an impact element 27 is supported, on which the front part is positioned in FIG. 8 shown,
how the rear part 28 of the head of the projectile is screwed on from the description above and the figures. is readily apparent, the invented How inFig. 5, the insulating sleeve 7 forms the arrangements according to the invention, ie these to the insulating shell 26, the tubular runner 16, the additional safety tube in the head of the projectile, without a guide 13, the end stop 20 and the connection difficulties in the manufacture or the Monklemme 24 and all internal elements are used in a compact day, while this fuse, the aggregate, which consists of two parts, on the opening of the circuit directly behind the one main part A, which is based on the corresponding generator 1, does not have a maximum effectiveness metallic parts of the projectile and only achieved by the fact that this circuit is systematically designed for this purpose that all 60 is opened automatically, but also, in front of its outer parts except for the radial tongues 10 of everything, by the absolutely safe closure of this Ground plate 9 made of insulating material, and a circuit after the projectile has been fired, which in the second en main part B, which is made of metal, but is reinforced at the moment of impact,
at no point with the in the immediate vicinity ..,
Shank parts of the projectile except for the 65th patent claim:
Line 25 comes into contact. This unit is 1. Electrical safety fuse head for Proais Ganzes inserted in the front part of the projectile jectile, whose electrical ignition circuit is based on the insulating shell 26 on the generator, a fuse, a fixed and a has movable contact element, which is normally from the locking members fixed contact and only when the projectile is fired as a result of the inertia effect is released, in order then under the pressure of a relaxing spring the stationary To touch contact element, characterized in that the fixed Contact element (4) as a coaxial, slightly conical extension of an anvil (2) of the projectile fuse is formed and in the front end of a coaxial, tubular guide element - is used, which in the rear part of the movable contact (22), an end stop (20) and between the two Compression spring (23) carries that to block the movable contact (22) in the rest position .Sperrkugeln (15) in lateral holes (14) formed immediately in front of the movable contact (22) the pipe guide (13) inserted and by a slidingly arranged on the pipe guide, however are held in the rest position by a tubular runner (16), which in turn by elastic Tongues (17) of a sleeve (18) wedged on the pipe guide (13) is locked, and that in the Moment of launch as a result of the backward movement of the pipe runner (16) over the elastic tongues (17) away to the end stop (20) in the new locking position Tongues (17) the locking balls and thus the movable contact (22) are releasable in such a way that the latter when the acceleration of the projectile is reduced by the compression spring (23) can be pushed forward onto the fixed contact (4). . 2. Electrical safety ignition head according to claim 1, characterized in that it forms a complete unit which can be inserted into the front end of the projectile between the adhesive head (30) and the projectile casing (28) and consists of a front main part (A ) and a rear metallic main part (B) connected to it , the front main part (/ 4) having a front insulating sleeve (7) and a deep-drawn insulating shell (3) embedded therein, in which a hammer (31), an impact limiter (5 ), a ground plate (9), the generator (1), the AmBoss (2) with its fixed contact (4) forming the coaxial extension are firmly inserted and on their rear, the fixed contact (4) surrounding pipe extension (11) the in turn, by an insulating shell (26), the front end of the pipe guide (13) is pushed open, while the rear main part. (B) from the pipe guide (13) with the locking balls (15), the external pipe runner (16) and its locking sleeve (18) with the tongues (17) and the movable contact (22) located in this pipe guide (13), the Compression spring (23) and the end stop (20), at the rear end of which a terminal (24) is provided for an electrical connection line (25) between the generator and the squib. 3. Electrical safety ignition head according to claim 2, characterized in that the deep-drawn shell (3) and the partially enveloping insulating sleeve (7) have longitudinal slots (6, 8) in the same sectional planes, the inner ends of which in a cross-sectional plane of the unit ( A, B) , and that the ground plate (9) is arranged in this cross-sectional plane between the shock limiter (5) and the generator (1) and has radial tongues (10) extending outward through these pairs of slots to the metal nose (29) of the projectile . Considered publications:
German Patent Nos. 1080 440, 1120 941; German Auslegeschrift No. 1146 409;
French patent specification No. 1298 047. 1 sheet of drawings 609 579/47 6.66 © Bundesdruckerei Berlin