EP0525613A1 - Cartouche en plastique et magasin-ruban en plastique pour cartouches - Google Patents

Cartouche en plastique et magasin-ruban en plastique pour cartouches Download PDF

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Publication number
EP0525613A1
EP0525613A1 EP92112520A EP92112520A EP0525613A1 EP 0525613 A1 EP0525613 A1 EP 0525613A1 EP 92112520 A EP92112520 A EP 92112520A EP 92112520 A EP92112520 A EP 92112520A EP 0525613 A1 EP0525613 A1 EP 0525613A1
Authority
EP
European Patent Office
Prior art keywords
sleeve body
cartridge
ignition
cover
receiving space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92112520A
Other languages
German (de)
English (en)
Other versions
EP0525613B1 (fr
Inventor
Hans Jena
Kurt Dr. Ballreich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of EP0525613A1 publication Critical patent/EP0525613A1/fr
Application granted granted Critical
Publication of EP0525613B1 publication Critical patent/EP0525613B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/04—Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
    • B25C1/163—Cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/08—Cartridge belts
    • F42B39/085—Cartridge belts for blank cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/36—Cartridge cases modified for housing an integral firing-cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/10—Percussion caps

Definitions

  • the invention relates to a cartridge made of plastic, with a plastic body open on one side for receiving a propellant charge and an ignition set for igniting the propellant charge when pressure is applied to the ignition charge and a plastic cover for closing the open end of the sleeve body. Furthermore, the invention relates to a cartridge tape magazine made of plastic with a sleeve body strip made of plastic, which has a plurality of interconnected sleeve bodies, and a closure lid strip made of plastic, which has a plurality of interconnected closure cover parts for closing the sleeve body.
  • Such (propellant) cartridges made of plastic are used in shooting devices, in particular bolt-setting devices of the most varied types.
  • the cartridges are mostly integrated in magazine strips (cartridge tape magazine).
  • Plastic cartridges can also be used in central firearms.
  • the advantages of plastic cartridges are in particular the relatively low material and manufacturing costs; the cartridges can be manufactured using spray technology.
  • the plastic cartridge mentioned at the outset or the plastic cartridge magazine mentioned at the outset is known from DE 377 924 A1.
  • a certain problem with plastic cartridges is the initiation of the primer by the firing pin. On the one hand, this is due to the plasticity of the plastic material, which dampens the firing pin energy, which is why the momentum with which the firing pin hits the cover or the sleeve body must be increased.
  • the initiation of the primer charge in plastic cartridges is difficult because the primer charge is inserted between two layers of plastic material. The deformation energy generated by the firing pin only gives a sufficient temperature increase in the ignition charge in such circumstances when the pressure (force / area) or deformation under this pressure in the ignition charge is far higher than plastic allows. Sufficient pressures of the primer can only be achieved if the primer is housed between two metal parts, as is the case with metal cartridges.
  • the invention has for its object to provide a plastic cartridge and a plastic cartridge tape magazine of the types mentioned, which work in the conventional shooting devices, which so far have been integrated with metal cartridges in loading strips, without changing the device or the firing pin mechanism can be used.
  • the invention proposes a plastic cartridge which has a sleeve body which is open on one side for receiving a propellant charge and an ignition charge for igniting the propellant charge when pressure is applied to the ignition charge and a cover for closing the open end of the sleeve body, wherein in the space delimited by the sleeve body and cover is arranged with a plastic ignition pin coupled to the cover so as to be longitudinally displaceable in the axial direction and the ignition pin can be moved when pressure is exerted on the cover in the region of its coupling with the ignition pin and to ignite the ignition charge on it (mechanically ) acts.
  • a plastic ignition pin coupled to the cover so as to be longitudinally displaceable in the axial direction and the ignition pin can be moved when pressure is exerted on the cover in the region of its coupling with the ignition pin and to ignite the ignition charge on it (mechanically ) acts.
  • the cartridge according to the invention is provided with an ignition pin which is moved forward by the firing pin acting on the cartridge (cover) and acts with its striking end on the firing charge in order to initiate it.
  • the firing pin energy is thus converted into kinetic energy for the firing pin, which in turn transfers this energy to the firing unit by deforming it in order to ignite the firing unit.
  • the firing pin thus acts as a transmission element for transmitting the firing pin energy to the firing charge.
  • a transfer of the firing pin energy through the cartridge wall, i.e. through the rigid lid is not provided according to the invention; rather, the cartridge according to the invention is provided with an element which converts the firing pin energy into kinetic energy, namely the firing pin.
  • the damping of the firing pin energy by the plastic material is thereby significantly reduced compared to known plastic cartridges.
  • the plastic cartridge according to the invention can therefore be triggered with the aid of the firing pin mechanism designed for metal cartridges, without having to make any changes to the devices.
  • the striking end of the firing pin acting on the primer is tapered, preferably conical, and the primer in a preferably conical shape corresponding to the shape of the striking end Take or recess of the sleeve body is arranged. In the area in which the ignition charge is accommodated in the sleeve body, it has a funnel shape. The surface of the recess preferably runs parallel to the outer surface of the striking end of the firing pin. When the striking end of the firing pin strikes the primer, the striking end exerts pressure on the primer.
  • a sufficient ignition of the propellant charge can be achieved with a smaller amount of primer with a reduced proportion of friction agent, which has the consequence that device contamination, in particular device erosion, is significantly reduced compared to the previous cartridges.
  • the pointed striking end of the firing pin penetrates into a kind of igniter set, so to speak, in the negative or counter-shape at the striking end, and the funnel-shaped igniting set shaped in this way is arranged in a recess or depression corresponding to the shape of the striking end, can be arranged of the ignition material between two comparatively soft plastic parts achieve a reliable ignition, since the ignition material is rubbed when the two plastic parts move relative to one another and heats up in the process.
  • the frictional energy is achieved by tangential displacement ("shear") of very small amounts of primer charge (the layer thickness between the recess wall and the striking one is small), which is created by a self-forming pressure system (the pressure under which the primer charge layer is due to the conical Areas of the striking end and the depression continuously larger).
  • the frictional heat is mainly achieved by increasing the frictional path with reduced pressure values.
  • the primer charge is advantageously given a hollow cone shape when introduced into the conical recess of the plastic cartridge. With its pointed striking end, the firing pin first dips into the conical cavity of the firing charge thus shaped. In this case, energy for displacing the material of the ignition charge on all sides is not required. Almost all of the energy from the firing pin can be converted into friction energy when the firing pin is advanced.
  • the primer is arranged at a relatively large distance from the opening of the sleeve body or from the lid of the cartridge.
  • This has particular advantages when using bulk tools; because the clean compression of the primer pill, which is preferably introduced as a wet charge, is now given insofar as the cartridge (cover and / or sleeve body) no longer or hardly contaminates during mass processing due to the ignition charge material that oozes out during compression due to the large depth of the wet charge.
  • the compression of the inserted primer pill is achieved solely by axially advancing the pill insertion plunger.
  • the indentation stamp also preferably has a conical tip, so that the firing charge is given the hollow cone shape described above when the firing charge pill is compressed.
  • the introduction of the primer in the form of a wet charge has primarily safety-related advantages (dust-free).
  • the "harder” components of the primer e.g. glass particles - as a friction agent
  • This effect occurs in the cartridge according to the invention both when the primer charge is introduced as a wet charge and when it is introduced as a dry charge.
  • the sleeve body has a first receiving space corresponding to the igniter pin in cross section for receiving the igniter charge and the igniter pin, and that the igniter pin is guided in the first receiving space so as to be longitudinally displaceable.
  • the first receiving space preferably has the shape of a blind hole.
  • the conical recess for (at least partially) receiving the ignition charge is advantageously arranged at the end opposite the opening of the first receiving space.
  • the firing pin can lie with its outer circumferential surface in a sealing manner on the inner surface of the first receiving space. Both the first receiving space and the firing pin are preferably cylindrical.
  • the ignition pin for longitudinally displaceable guiding in the first receiving space has an enlarged cross section in its area facing the cover, which is slightly smaller than or equal to the cross section of the first receiving space.
  • the rear part of the firing pin is thus enlarged in cross section and lies in this area on the inner surface of the first receiving space.
  • the firing pin is slimmer, which is why the pointed striking end is surrounded on all sides by firing primer material when it enters the primer.
  • the firing pin is preferably provided with a one-piece molded circumferential radial sealing lip for abutting the inner wall of the first receiving space.
  • the sealing lip is preferably designed such that it is pressed against the inner surface of the first receiving space by the increased combustion gas pressure when the ignition charge is ignited. This prevents the combustion gases from escaping from the first receiving space in an unintended direction and prevents the firing pin from being moved back by the contact pressure of the sealing lip against the inner surface of the receiving space.
  • the cover has increased flexibility in the area of the coupling with the firing pin. This increased flexibility allows the firing pin to advance when the firing pin acts on the cartridge.
  • the ignition pin is preferably connected in one piece to the cover, the connection being designed in such a way that the ignition pin can be moved in the axial direction while maintaining the connection with the cover.
  • Such a connection can be realized, for example, by appropriate elasticity of the cover in the area of the connection with the ignition pin.
  • the lid in the edge area around the end of the ignition pin connected to it is made thinner than the lid in the remaining area.
  • the material properties of the plastic of the cartridge are such that the elasticity allows the firing pin to move while maintaining the mechanical connection with the cartridge.
  • the ignition pin is connected in an articulated manner to the cover at its end connected to the cover and facing away from the striking end.
  • This articulated connection can be realized, for example, by means of a film hinge or a ring membrane. All of the above-mentioned connections have the advantage that the firing pin can be produced in one piece with the cover as a plastic injection molded part.
  • the articulated connection of the ignition pin and the cover is designed such that the plastic material does not experience any expansion when the ignition pin is moved forward.
  • the cover in the ring area around the firing pin extends in the manner of a truncated cone to the firing pin.
  • the firing pin is in its retracted position, which it assumes in order to be advanced when the firing pin acts.
  • the firing pin is advanced further into the sleeve body, the ring region now falling towards the end of the firing pin; because when the firing pin is in its feed position, the outer surface of the cover protrudes above the end face of the firing pin, so the firing pin is pressed in.
  • the articulated connection of the firing pin and cover has the advantage that the firing pin energy is not required to expand the plastic material, so the firing pin strikes the firing charge with higher energy.
  • the first receiving space has, in addition to its elongated first partial space corresponding in cross section to the firing pin, a second partial space which opens into the conical region of the first partial space.
  • the firing charge pressed into the first receiving space which is preferably introduced as a wet charge, is introduced into the second partial space as well as into the conical region of the first partial space of the first receiving space through the insertion stamp during the processing.
  • the material of the ignition charge extends as a continuous layer connecting the two subspaces. The much smaller proportion of primer material is located in the conical depression of the first subspace.
  • the ignition charge and propellant charge are accommodated in the sleeve body completely separately from one another.
  • both sets are accommodated in separate receiving spaces, the partition wall separating the two spaces being designed as a burst wall which breaks open when the ignition charge is ignited, so that the combustion gases reach the propellant charge and ignite it.
  • the rupture wall either has a wall thickness which ensures breakup from a certain (combustion) gas pressure in the first receiving space or corresponding predetermined breaking points.
  • the sleeve body is advantageously provided with predetermined breaking points (star embossing) in the region of the (second) receiving space for the propellant charge in order to facilitate or enable the cartridge to burst open when the propellant charge is ignited.
  • the lid has a relatively thick peripheral edge projecting into the interior of the sleeve body, which runs adjacent to the inner surface of the sleeve body or the receiving space for the propellant charge.
  • the cover which in turn is preferably inserted into the sleeve body by clamping and / or latching, is secured against detachment by the cartridge or cartridge bearing when the propellant charge is ignited.
  • the protruding edge of the cover which can be inserted into the opening of the sleeve body, projects downward over the sealing lip of the firing pin, which makes it easier to put the cover on.
  • the cartridge according to the invention can be used both for shot devices with edge ignition and for shot devices with central ignition.
  • the firing pin is located at different positions on the cover, namely in the first case in the edge area, i.e. off-center, and in the second case in the middle of the lid.
  • the exact arrangement of the firing pin depends on the position of the firing pin of the shooting device.
  • the eccentric arrangement of the firing set in the edge region is advantageous, with all firing pins being arranged along the center line of the magazine band.
  • the firing pin of a cartridge is thus arranged in the area facing an adjacent cartridge. In this area, the cartridge bearing does not completely enclose the sleeve body. When the cartridge is ignited, the firing pin increases the strength since it is arranged between the propellant charge and the "laterally open" area of the cartridge bearing.
  • the arrangement of the firing pin in the edge region of the cartridge also has the advantage that the firing charge is only protected from the environment by the sleeve body wall. This protection is sufficient, as far as mechanical effects from the outside are concerned, and, in addition, allows the igniter to burn off safely in this area when the cartridge is exposed to heat due to the thin walls of the sleeve body, the burst wall between the igniter and propellant charge preventing the propellant charge from igniting. Due to the poor thermal conductivity of plastic, the igniter withstands a short exposure to heat (temperatures of over 130 ° C are not critical anyway). In the preferred arrangement of the ignition charge on the longitudinal central axis of the magazine strip, the ignition charge is particularly well protected.
  • the cartridge tape magazine according to the invention is essentially of two parts and consists of a plurality of sleeve bodies integrated in a plastic strip and a plurality of closure lid parts integrated in a closure lid strip for closing the open sides of the sleeve body.
  • the individual closure cover parts are elastically connected to one another (by means of flexible film hinges).
  • the plastic sealing strip is arched, ie at a distance from the sleeve body strip. In this way, the distance between adjacent closure cover parts can be adapted to the distance between associated adjacent sleeve bodies.
  • the closure lid In the area of its film hinges, the closure lid can be of the same width as the closure lid parts; but it is also possible that the side edges of the film hinges are formed with edge recesses. This creates (edge) relief holes or openings directed towards the top of the sealing strip. If a gas escapes from a cartridge between a sealing cap part and a sleeve body, the sealing cap part is not lifted off or even ignited on an adjacent cartridge by allowing the gas to escape through the relief holes or openings in the area of the film hinge before it reaches the adjacent cartridge .
  • the film hinges can also be designed in the manner of flexible tongues or webs with free spaces in between; the free spaces then represent the relief holes or openings.
  • the sealing cover strip is advantageously held in a clamping and snap-in manner on the sleeve body strip.
  • the sleeve body strip advantageously has on its two longitudinal sides the surface of the upper side which is provided with the sleeve body openings and has projecting thickened edge strips which are essentially square or rectangular in cross section.
  • the sealing strip is inserted with its outside edges in a clamping and latching manner against the mutually facing inner surfaces of the edge strips designed in the manner of flanges.
  • the two edge strips are directed away from one another laterally. Clearances are formed at this end between the edge strips and the remaining part of the sleeve body strip. The ends of the edge strips facing away from one another form a lock, which prevent the cartridge tape magazine from being inserted if the alignment is incorrect.
  • the cartridge tape magazine according to the invention can be designed both as a ring magazine and as a linear tape magazine.
  • the receiving spaces for the igniter charges are preferably arranged along the center line of the strip when the sleeve body strip is viewed in plan view.
  • a cartridge tape magazine made of plastic is shown in side, top and front views.
  • the band magazine 10 consists of two plastic strips which are connected to one another in a latching manner, namely a sleeve body strip 12 and a sealing cover strip 14.
  • the sleeve body strip 12 has a plurality of sleeve bodies 16 arranged next to one another, which are connected to one another via a plastic edge 17 of the sleeve body strip 12 and each have a cap-like shape Have a conical shape with a round bottom part 18 facing away from the sealing strip 14.
  • the sleeve bodies 16 which are open towards the closure cover strip 14 are closed by closure cover parts 20 which are connected to one another in an articulated manner and are integrated in a plastic band 21 of the closure cover strip 14.
  • the sleeve body strip 12 has bead-like edge strips 22 on its two long sides. These edge strips 22 protrude upward above the sealing strip 14 and close it by clamping and latching bass out.
  • Both the sleeve body strip 12 and the closure cover strip 14 are made in one piece as plastic injection molded parts.
  • the sleeve bodies 16 together with the closure cover parts 20 form the cartridges 23.
  • FIGS. 4 to 7 The more precise structure of the two strips 12, 14 of the tape magazine 10 is shown in FIGS. 4 to 7 shown.
  • the essentially rectangular sealing cover parts 20 are connected to one another via membranes acting as film hinges.
  • the sealing cover strip 14 has a reduced thickness.
  • the film hinges 24 are provided with edge recesses 26 on their two exposed edges. The meaning of these edge recesses 26 will be explained further below.
  • the closure cover part 20 (representative of all closure cover parts will be described in more detail below) has a closed collar edge 28 which projects downwards at right angles and runs in the manner of a sickle. In the area defined by the edge 28, the closure cover part 20 has a greater thickness than in the rest of the area (see FIG. 5). The edge 28 tapers conically towards its free end; the outer surface of the edge 28 runs perpendicular to the upper side of the cover part 20.
  • a plastic ignition pin 30 is connected in one piece to the closure cover part 20 and, like the edge 28, projects downward from the closure cover part 20.
  • the cylindrical firing pin 30 has a larger diameter in the section which adjoins the end connected to the closure cover part 20 than in the region of its free (striking) end 32.
  • This free end 32 of the firing pin 30 is conical and tapering educated.
  • the latter is provided with an axially open annular groove 34, so that a sealing lip 36 is formed on the section of enlarged diameter.
  • the firing pin 30 is located next to the crescent-like edge 28 of the closure cover part 20, the portion of the rim 28 facing the firing pin partially surrounding the firing pin 30 and extending parallel to the circumference of the firing pin 30.
  • the cover strip 14 has a reduced thickness; the ring region 38 is designed in the manner of a membrane or a film hinge, which allows the ignition pin 30 to move axially while maintaining the connection with the sealing cap strip 14 or the sealing cap part 20.
  • the ring region 38 rises towards the end 40 of the firing pin 30, the end face at the end 40 of the firing pin 30 projecting beyond the outer cover surface 42 when the firing pin is in the retracted or initial position shown in FIG. 5.
  • the firing pin acts, for example, on a bolt-setting tool on the end 40 of the firing pin 30 in order to move the firing pin 30 axially into its feed position, in which the striking end 32 acts mechanically on an ignition set accommodated in the sleeve body 16 .
  • the closure cover part 20 has a circular recess 44, in the area of which the firing pin 30 is connected to the closure cover part 20 via the film hinge ring region 38.
  • the sleeve body 16 has a first receiving space 46 and a second receiving space 48. Both receiving spaces 46, 48 are separated from one another by a partition 50 and are otherwise delimited by the wall of the sleeve body 16.
  • the first receiving space 46 serves to receive the firing pin 30 and the above-mentioned primer 52.
  • the first receiving space 46 consequently has a partial space which is essentially cylindrical in the manner of a blind hole, the bottom of the bore being designed as a conical depression 53. In the area of its opening 54, the first receiving space 46 has an enlarged diameter, which facilitates the introduction of the firing pin 30 when the sealing cap strip 14 is placed on the sleeve body strip 12.
  • the second receiving space 48 has the opening 55.
  • the first receiving space 46 also comprises a second partial space 58 which opens into the conical end 53 of the first partial space 56.
  • the two subspaces are connected to one another via the cone wall of the first subspace.
  • the second partial space 58 serves to receive the ignition charge 52, which is partly also accommodated in the first partial space 56, namely in the area of its conical end 53.
  • the second Partial space 58 is separated from the second receiving space 48 by the partition 50.
  • the second receiving space 48 serves to receive the propellant charge 60, which is ignited by the combustion gases generated when the igniting charge 52 is ignited.
  • the second receiving space 48 extends into the area of the bottom 18 of the sleeve body 16, where the sleeve body 16 has on its inside a star embossment, indicated at 62 in FIG. 7, for producing predetermined breaking points.
  • FIGs. 8 and 9 show cross-sectional views of an assembled cartridge 23, the mode of operation of which is explained in more detail.
  • the edge 28 of the sealing cap part 20 is immersed in the second receiving space 48, its outer surface on the inner surface delimiting the second receiving space 48 in the region of its opening 55 of the sleeve body 16 and lies tight against the partition 50.
  • the firing pin 30 is immersed in the first subspace 56 of the first receiving space 46, its striking end 32 being arranged at a distance from the conical depression 53 at the end of the first subspace 56.
  • the firing pin 30 is initially in its retracted position in which the end face of its end 40 connected to the closure cover part 20 projects beyond the surface 42 of the closure cover part 20.
  • the igniter 52 While the propellant charge 60 completely fills the area of the second receiving space 48 below the edge 28 of the cap, the igniter 52 has a cavity 64 on its side facing the striking end 32. This cavity is created by the way in which the firing charge is introduced in the laboratory.
  • the ignition charge 56 is first introduced as a wet charge pill into the first subspace 56 of the first receiving space 46. Subsequently, the wet charge pill is pressed far into the receiving space 46 with the aid of an insertion punch with a conical end, the material of the primer 52 being pressed both into the second partial space of the first receiving space 46 and into the conical depression of the first partial space 56.
  • the material of the ignition charge 52 located in the first partial space 56 is incorporated into the material shown in FIGS. 6 and 8 brought shape, which is essentially like a hollow cone.
  • the conical end 53 of the first partial space 56 of the first receiving space 46 is therefore covered with ignition material in a relatively small layer thickness.
  • the conical impact tip 32 acts on the primer layer at the conical end 53 of the first receiving space 46. Frictional heat is generated in the primer layer, which ultimately leads to the ignition of the primer material. The frictional heat is largely achieved due to the relatively long friction path of the striking end 32 in the primer layer; the pressure with which the striking end 32 of the firing pin 30 acts on the firing material rather plays a subordinate role.
  • the choice of the material of the sleeve body 16 favors the ignition of the ignition charge 52, since the frictional heat generated therein is hardly dissipated due to the relatively poor thermal conductivity of plastic.
  • combustion gases develop.
  • the rapidly increasing gas pressure in the first receiving space presses the sealing lip 36 of the firing pin 30 against the inner wall of the first receiving space and thus ensures a gas-tight closure of the first receiving space 46 to the outside and a high contact pressure, by means of which the firing pin 30 prevents displacement in the direction of its Treatment position is secured.
  • the increase in gas pressure finally leads to the rupture of the partition 50, which (also) takes on the function of a burst wall.
  • the hot combustion gases flowing from the first receiving space 46 into the second receiving space 48 ignite the propellant charge 60, whereupon the sleeve body 16 tears open in the base area 18 and releases the gas flow.
  • the situation described here is shown graphically in FIG. 9.
  • the striking end 32 of the firing pin 30 is in its retracted position (FIG. 8) at a distance from the conical recess 53 of the first receiving space 46, while the conical surface of the striking end 32 when the firing pin 30 is in its advancing position (FIG. 9 ) bears on the conical surface of the depression of the first receiving space 46. So that the ignition pin 30 can be moved forward in the axial direction to abut the conical depression 53 of the first receiving space 46, the plane in which the opening 54 of the first receiving space 46 lies is spaced apart from the ring area 38 connecting the ignition pin 30 to the cover part 20. With the ignition pin in its feed position 30, the ring region 38 extends around the end 40 of the firing pin 30, partly in this free space above the opening 54 of the first receiving space 46 (see FIG. 9).
  • each closure cover part 20 is clamped against the inner surface of each sleeve body 16 that defines the second receiving space 48.
  • the two edges 22 or edge strips of the sleeve body strip 12 protrude above the upper side of the sealing cover strip 14 and have undercut recesses 68 on their mutually facing inner surface, into which the correspondingly shaped side edges 70 of the sealing cover strip 14 are engaged.
  • edges 22 of the sleeve body strip 12 have outer edge recesses 72 which are arranged at the level of the film hinges 24 connecting the individual closure cover parts 20.
  • the recesses 72 do not extend over the entire thickness of the edges 22.
  • the recesses 72 define the amount by which the tape magazine 10 must be advanced in order to load the next cartridge 23.
  • Both edges 22 are separated from the remaining part of the sleeve body strip 12 at one end and extend outward from one another.
  • the width of the sleeve body strip 12 at this end is therefore larger than in the remaining area of the sleeve body strip. This prevents incorrect insertion of the tape magazine 10 into the shooting device.
  • the tape magazine 10 shown in the figures and the cartridges 23 integrated in it have the features and properties listed below.
  • the entire tape magazine 10 consists only of two injection molded plastic parts, namely the sleeve body strip 12 and the sealing cap strip 14. Accordingly, each cartridge 23 consists only of the plastic sleeve body 16 and the plastic sealing cap part 20.
  • the ignition charge 52 can be reliably ignited in spite of its arrangement between two relatively soft plastic parts, namely the ignition pin striking end 32 and the wall of the conical depression 53 in the first receiving space 46 with correspondingly low ignition forces.
  • the firing pin 30 is integrally connected to the cover parts.
  • the ignition charge 52 is inserted relatively deep into the sleeve body 16, so that contamination in the area of the sleeve body opening 54, 55 and thus no leaks in the closure cover parts do not occur.
  • the ignition charge 52 can be accommodated in the first receiving space 46 simply by axially inserting a pill.
  • This axial introduction is very simple in terms of production technology and therefore inexpensive to implement.
  • the tool for this is e.g. around an axially displaceable plunger which presses the set cap axially into the first receiving space 46 up to its conical recess 64.
  • stamps can work at the same time in order to populate a large number of cartridges with the firing sets.
  • the sleeve body wall 16 is relatively thin, which is indicated in the figures at 74 and is produced by a recess 76 formed in the conical depression 53. Due to the special arrangement of the firing charge material in the form of a funnel and the firing principle described above, reliable ignition of the propellant charge can be achieved with less firing charge material. This also means that fewer residues occur in the shooting device and less pollutant emissions. Finally, there is more space in the cartridge for the propellant charge.
  • the edge 28 of the sealing cap part 20 which acts as a sealing lip, is securely pressed against the inner wall of the sleeve body by the gas pressure when the propellant charge is ignited, so that no gas can escape through the sealing cap part 20 and the ignition pin 30 is held clamped.
  • a suitable plastic for example polycarbonate
  • lateral cracking of the cartridge 23 in the upper region of the sleeve body, which is not partially enclosed by the cartridge bearing, is largely prevented.
  • the firing pin 30 is held clamped even when the propellant charge 60 is ignited, namely by the contact forces of the edge 28 of the cover part
  • edge recesses 26 of the film hinges 24 of the cover strip 14 act like relief holes or openings through which the gases can escape before they reach the adjacent cartridge 23.
  • the sleeve body strips and sealing strip strips produced as tapes can be sprayed in the grid in such a way that multiple handling during manufacture is possible with the simplest means.
  • Several sleeve body strips and several sealing cover strips are thus produced separately from one another.
  • the sleeve bodies arranged in the grid are then fitted with the ignition and propellant charge sets. Then the cover part grid is put on. The introduction of the firing pins into the openings 54 of the sleeve body is facilitated by the enlarged receiving spaces in the opening area.
  • edges 28 of the cap parts 20 protrude downward over their sealing lips 36 when the firing pins 30 are in the retracted position, the edges 28 are already immersed in the sleeve body before the firing pin can be pressed over when the cap parts are not placed on carefully.
  • a firing pin 30, which does not run coaxially to the first receiving space 46, can consequently be inserted into the first receiving space 46 reliably and without problems during the production of the tape magazines.
  • the quantity of primer charge arranged in a funnel shape in the first receiving space 46 and the conical depression 53 force the primer pin 30 into the “igniter center” even if the firing pin 30 is deformed, thus ensuring correct functioning.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Toys (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP92112520A 1991-07-24 1992-07-22 Cartouche en plastique et magasin-ruban en plastique pour cartouches Expired - Lifetime EP0525613B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4124490A DE4124490A1 (de) 1991-07-24 1991-07-24 Kartusche aus kunststoff und kartuschen-bandmagazin aus kunststoff
DE4124490 1991-07-24

Publications (2)

Publication Number Publication Date
EP0525613A1 true EP0525613A1 (fr) 1993-02-03
EP0525613B1 EP0525613B1 (fr) 1997-01-08

Family

ID=6436884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92112520A Expired - Lifetime EP0525613B1 (fr) 1991-07-24 1992-07-22 Cartouche en plastique et magasin-ruban en plastique pour cartouches

Country Status (9)

Country Link
US (1) US5279201A (fr)
EP (1) EP0525613B1 (fr)
JP (1) JPH05203395A (fr)
KR (1) KR100233211B1 (fr)
AT (1) ATE147504T1 (fr)
CA (1) CA2074439A1 (fr)
DE (2) DE4124490A1 (fr)
ES (1) ES2096679T3 (fr)
SG (1) SG48151A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560584A1 (fr) * 1992-03-13 1993-09-15 Sencorp Bande de charges propulsives
EP0608776A1 (fr) * 1993-01-26 1994-08-03 Dynamit Nobel Aktiengesellschaft Cartouche en plastique pour un dispositif de tir, notamment un dispositif scellement de chevilles
DE4444095A1 (de) * 1994-12-10 1996-06-13 Rheinmetall Ind Gmbh Bandförmiger Ladestreifen für Bolzensetzgerät
EP1106957A3 (fr) * 1999-12-04 2001-10-24 HILTI Aktiengesellschaft Cartouche pour appareil de scellement
FR2835462A1 (fr) * 2001-12-17 2003-08-08 Hilti Ag Cartouche, en particulier pour outils de scellement, et dispositif pour l'amorcage d'une charge propulsive, en particulier pour outils de scellement
EP1870208A1 (fr) 2006-06-20 2007-12-26 HILTI Aktiengesellschaft Magasin de cartouches
EP3124181A1 (fr) * 2015-07-31 2017-02-01 HILTI Aktiengesellschaft Dispositif d'entrainement, bandes de cartouches et systeme de fixation
WO2017021157A1 (fr) * 2015-07-31 2017-02-09 Hilti Aktiengesellschaft Dispositif d'enfoncement, bande à cartouche et système de fixation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5811717A (en) * 1996-08-21 1998-09-22 Illinois Tool Works Inc. Powder-actuated tool cartridge clip with position indicator mark
US6494322B1 (en) * 2000-10-31 2002-12-17 G. Lyle Habermehl Arrow head screwstrip
DE10259818A1 (de) * 2002-12-19 2004-07-01 Hilti Ag Brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät für Befestigungselemente
DE10323531B3 (de) * 2003-05-24 2005-02-10 Hilti Ag Treibladungssatz, insbesondere für Bolzensetzgeräte
US10837747B2 (en) * 2018-02-15 2020-11-17 Goodrich Corporation High explosive firing mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679803A (en) * 1950-11-13 1954-06-01 Arthur W Lifquist Toy cartridge
EP0273777A1 (fr) * 1987-01-02 1988-07-06 Edward W. Bowman Magasin contenant des charges explosives pour outil d'enfoncement avec piston
EP0377924A1 (fr) * 1988-12-09 1990-07-18 Edward W. Bowman Magasin contenant des charges explosives pour outil d'enfoncement avec piston
EP0390738A1 (fr) * 1989-03-31 1990-10-03 HILTI Aktiengesellschaft Ruban-chargeur pour charges propulsives

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1603754A1 (de) * 1966-04-28 1970-12-23 Dynamit Nobel Ag Kartusche zum Vortreiben des Arbeitskolbens von pulverkraftbetriebenen Geraeten zur gewerblichen Nutzung
DE1603753A1 (de) * 1966-04-28 1970-12-23 Dynamit Nobel Ag Treibkartusche fuer pulverkraftbetriebene Geraete zur gewerblichen Nutzung
US4920885A (en) * 1987-01-02 1990-05-01 Bowman E W Explosive charge containing magazine for RAM setting gun

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679803A (en) * 1950-11-13 1954-06-01 Arthur W Lifquist Toy cartridge
EP0273777A1 (fr) * 1987-01-02 1988-07-06 Edward W. Bowman Magasin contenant des charges explosives pour outil d'enfoncement avec piston
EP0377924A1 (fr) * 1988-12-09 1990-07-18 Edward W. Bowman Magasin contenant des charges explosives pour outil d'enfoncement avec piston
EP0390738A1 (fr) * 1989-03-31 1990-10-03 HILTI Aktiengesellschaft Ruban-chargeur pour charges propulsives

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560584A1 (fr) * 1992-03-13 1993-09-15 Sencorp Bande de charges propulsives
EP0608776A1 (fr) * 1993-01-26 1994-08-03 Dynamit Nobel Aktiengesellschaft Cartouche en plastique pour un dispositif de tir, notamment un dispositif scellement de chevilles
DE4444095A1 (de) * 1994-12-10 1996-06-13 Rheinmetall Ind Gmbh Bandförmiger Ladestreifen für Bolzensetzgerät
EP1106957A3 (fr) * 1999-12-04 2001-10-24 HILTI Aktiengesellschaft Cartouche pour appareil de scellement
FR2835462A1 (fr) * 2001-12-17 2003-08-08 Hilti Ag Cartouche, en particulier pour outils de scellement, et dispositif pour l'amorcage d'une charge propulsive, en particulier pour outils de scellement
EP1870208A1 (fr) 2006-06-20 2007-12-26 HILTI Aktiengesellschaft Magasin de cartouches
EP3124181A1 (fr) * 2015-07-31 2017-02-01 HILTI Aktiengesellschaft Dispositif d'entrainement, bandes de cartouches et systeme de fixation
WO2017021157A1 (fr) * 2015-07-31 2017-02-09 Hilti Aktiengesellschaft Dispositif d'enfoncement, bande à cartouche et système de fixation

Also Published As

Publication number Publication date
EP0525613B1 (fr) 1997-01-08
ES2096679T3 (es) 1997-03-16
JPH05203395A (ja) 1993-08-10
ATE147504T1 (de) 1997-01-15
US5279201A (en) 1994-01-18
DE59207828D1 (de) 1997-02-20
KR100233211B1 (ko) 1999-12-01
CA2074439A1 (fr) 1993-01-25
SG48151A1 (en) 1998-04-17
DE4124490A1 (de) 1993-01-28
KR930002793A (ko) 1993-02-23

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