EP0277110A2 - Détonateur pour une grenade à main - Google Patents

Détonateur pour une grenade à main Download PDF

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Publication number
EP0277110A2
EP0277110A2 EP88890007A EP88890007A EP0277110A2 EP 0277110 A2 EP0277110 A2 EP 0277110A2 EP 88890007 A EP88890007 A EP 88890007A EP 88890007 A EP88890007 A EP 88890007A EP 0277110 A2 EP0277110 A2 EP 0277110A2
Authority
EP
European Patent Office
Prior art keywords
insert
chamber
bore
securing body
ignition channel
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.)
Withdrawn
Application number
EP88890007A
Other languages
German (de)
English (en)
Other versions
EP0277110A3 (fr
Inventor
Karl C/O Schaffler & Co. G.M.B.H. Ochsenhofer
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.)
Schaffler and Co GmbH
Original Assignee
Schaffler and Co GmbH
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 Schaffler and Co GmbH filed Critical Schaffler and Co GmbH
Publication of EP0277110A2 publication Critical patent/EP0277110A2/fr
Publication of EP0277110A3 publication Critical patent/EP0277110A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/16—Pyrotechnic delay initiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge

Definitions

  • the invention relates to a hand grenade detonator with a base body, in particular a thread, in which a chamber for receiving a delay set and a coaxial ignition channel are provided, at the end of which is a bearing for a primer is formed.
  • Hand grenade detonators have to meet very high safety requirements in order to protect life and property. Despite great care in the manufacture, assembly and inspection of the hand grenades, the sources of danger for the grenades have so far not been completely excluded. One of these sources of danger is defective delay sets, which can lead to an immediate detonation of the hand grenades.
  • metal membranes have been proposed which are arranged between the delay set and the detonator and which, in the event of a faulty delay set, are intended to prevent the ignition beam emanating from the primer from igniting onto the detonator.
  • the metal membrane is normally destroyed by the heat generated by the delay set and the detonator detonated after the delay set has burned down.
  • the aim of the invention is to eliminate this disadvantage and to create a hand grenade detonator which on the one hand offers effective protection against detonation in the event of a defective or missing delay set and on the other hand does not influence the delay time and is always within the tolerances.
  • a fuse body is positively or frictionally and releasably arranged under the action of a predetermined force that the fuse body is designed in the form of a disc and connected to an insert via at least one material bridge which is arranged between the chamber and the ignition channel and is provided with an axial bore, the securing body being arranged on the side of the insert facing the ignition channel and a tube being provided axially displaceably in the bore.
  • the hand grenade detonator is provided with the delay set, this pushes the tube in front of itself during assembly, which detaches the fuse body from the insert by severing the material bridge (s). If, on the other hand, the delay set is missing, the fuse body remains connected to the insert and closes the connection between the ignition channel and the chamber, so that ignition to the detonator is prevented.
  • the securing body can be connected to the insert via a joint. In this way it is prevented that the released securing body accidentally closes the bore of the insert.
  • the diameter of the disk forming the securing body can be substantially equal to the diameter of the bore. This enables easy manufacture of the hand grenade fuse.
  • the securing body and the insert form an integral plastic part. This allows cheap mass production with sufficiently high security properties.
  • FIG. 1 shows a longitudinal section through the hand grenade detonator with the fuse body closed
  • FIG. 2 shows a longitudinal section through the same with the fuse body released
  • FIG. 3 shows a longitudinal section through the insert including the fuse body and tube
  • FIG. 4 shows a top view of the insert including the securing body in the direction of arrow IV in FIG. 3.
  • Fig. 1 shows the grenade detonator in longitudinal section.
  • a bore 5 extending over the predominant length of the base body 1 is formed in an essentially cylindrical base body 1 with a thread 1a for fastening purposes.
  • a bearing 4 is provided for receiving a primer, which is connected to the bore 5 through an ignition channel 5a.
  • a tube 8 is fitted, at the end remote from the ignition channel 5, a detonator 9 is arranged.
  • a sleeve 2 is inserted into the tube 8, the bore of which serves as a chamber 3 for receiving a delay set (not shown in FIG. 1).
  • An insert 16 which is arranged in the tube 8 in a press fit, bears against the sleeve 2 and has a bore which is coaxial to the sleeve 2 or to the tube 8 and thus to the base body 1 and to the ignition channel 5 and in which a tube 15 is mounted in a sliding fit.
  • a space of a predetermined size is left in the base body 1 or the tube 8, as will be explained below.
  • a securing body 6 which has the shape of a disk with a practically the same diameter as this bore and is connected to the insert 16 via one or more material bridges 17, such as is shown in more detail in Fig. 3.
  • the securing body 6 is additionally connected to the insert 16 via a reinforced material section forming a joint 18, the purpose of which will be explained below.
  • the insert 16, the securing body 6 and the joint are preferably formed from a one-piece plastic part.
  • the material bridge 17 is dimensioned such that it can be severed by the action of a relatively small force, as a result of which the securing body 6 is released.
  • Fig. 1 shows a grenade detonator, in which the delay set is missing. Therefore, in the event of ignition of the primer located in the bearing 4, the ignition jets from the ignition channel 5a are prevented from reaching the detonator capsule 9 because the bore of the insert 16 is closed by means of the securing body 6.
  • the tube 15 is pushed into the bore of the insert 16 when the hand grenade detonator is installed.
  • the pressure exerted on the tube 15 during assembly is sufficient to cut through the material bridge (s) 17 and thus to release the securing body 6 from the insert 16. Since the tube 15 is advanced over the end face of the insert 16 associated with the securing body 6, the aforementioned space between the insert 16 and the ignition channel 5a is provided.
  • the joint 18 described above is provided, about which the securing body 6 pivots when the material bridge (s) 17 is cut.
  • the ignition jets emanating from the primer can pass through the bore 19 of the tube 15 unhindered to the delay set in the chamber 3.
  • the diameter of the chamber 3 and the bore in the insert 16 are preferably of the same size and, furthermore, the axial length of the insert 16 is shorter than that of the tube 15, as a result of which the components arranged in the tube 8 can be assembled easily and simply.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Bridges Or Land Bridges (AREA)
EP88890007A 1987-01-26 1988-01-14 Détonateur pour une grenade à main Withdrawn EP0277110A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT140/87 1987-01-26
AT14087A AT388244B (de) 1987-01-26 1987-01-26 Handgranatenzuender

Publications (2)

Publication Number Publication Date
EP0277110A2 true EP0277110A2 (fr) 1988-08-03
EP0277110A3 EP0277110A3 (fr) 1989-05-24

Family

ID=3482588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890007A Withdrawn EP0277110A3 (fr) 1987-01-26 1988-01-14 Détonateur pour une grenade à main

Country Status (2)

Country Link
EP (1) EP0277110A3 (fr)
AT (1) AT388244B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10184769B2 (en) 2014-12-10 2019-01-22 Ruag Ammotec Ag Detonator system for hand grenades

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT364286B (de) * 1979-08-01 1981-10-12 Oregon Ets Patentverwertung Verfahren zur herstellung eines beidseitig offenen zuendroehrchens fuer einen handgranatenzuender

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10184769B2 (en) 2014-12-10 2019-01-22 Ruag Ammotec Ag Detonator system for hand grenades

Also Published As

Publication number Publication date
AT388244B (de) 1989-05-26
EP0277110A3 (fr) 1989-05-24
ATA14087A (de) 1988-10-15

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