EP1094293A1 - Sicherungsstift für Handgranaten - Google Patents

Sicherungsstift für Handgranaten Download PDF

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Publication number
EP1094293A1
EP1094293A1 EP99610065A EP99610065A EP1094293A1 EP 1094293 A1 EP1094293 A1 EP 1094293A1 EP 99610065 A EP99610065 A EP 99610065A EP 99610065 A EP99610065 A EP 99610065A EP 1094293 A1 EP1094293 A1 EP 1094293A1
Authority
EP
European Patent Office
Prior art keywords
safety
ignition head
pin
arm
grenade
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Withdrawn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
EP99610065A
Other languages
English (en)
French (fr)
Inventor
Odd Halsnes
Erik Wulvik
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.)
FORSVARETS FORSKINGSINSTITUTT AVDELING FOR VAPEN O
Original Assignee
Forsvarets Forskningsinstitutt
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 Forsvarets Forskningsinstitutt filed Critical Forsvarets Forskningsinstitutt
Priority to EP99610065A priority Critical patent/EP1094293A1/de
Publication of EP1094293A1 publication Critical patent/EP1094293A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00—Mechanical fuzes characterised by the ammunition class or type
    • F42C14/02—Mechanical fuzes characterised by the ammunition class or type for hand grenades

Definitions

  • the present invention involves a device for locking the safety flank in the ignition mechanism of a hand grenade, preferably a smoke hand grenade.
  • the present invention involves a device developed in connection with a user clobject which specifies that the safety pin, after its release, shall be easy to reinsert, thus protecting the grenade in a satisfactory manner.
  • a brief description of the ignition mechanism of a hand grenade will be provided in the following.
  • a hand grenade is fired with the aid of the ignition mechanism, which consists of the following components: A delaying element with blasting cap and an ignition mechanism with striking arm/hammer mounted on an ignition head, which is screwed into the end of the grenade; an explosive charge, which is fastened to the delaying element; a safety arm made of metal, which keeps the hammer cocked in the ignition mechanism; and a safety mechanism, which locks the safety arm to the ignition head and prevents the safety arm from popping up and releasing the firing lock.
  • the present invention is intended to replace the conventional safety mechanism, which consists of a metal pin fastened to a metal ring.
  • the pin locks the safety arm to the ignition head and prevents the release of the firing lock by simultaneously running through overlapping holes in the safety arm and the ignition head.
  • the pin which is divided lengthwise, is further locked by being bent outward in the protruding end after it has been put in place.
  • the pin Upon deactivation of the safety mechanism, the pin is disengaged with the aid of the ring, which is fastened at the other end. Reinserting the pin, when this is desirable, will be difficult, since the pin is bent outward a bit at the end after being pulled out. If the pin has successfully been reinserted, it must be bent out again with a tool, in order to obtain an acceptable safety.
  • FI 69368 describes a safety pin with accompanying pulling ring.
  • the pin has two ends, which rest against each other when the pin has been pulled, preventing the pin from being reinserted in the ignition head. Thus it is difficult to reinsert the pin if the user wishes to reactivate the safety mechanism.
  • One object of the invention has been to devise a simple safety mechanism for hand grenades whereby the deactivation of the safety can readily be reversed.
  • Another object has been to produce a more reliable safety mechanism.
  • Yet another object of the invention has been to produce a safety mechanism that is more compact than previously known safety mechanisms.
  • a safety mechanism which contains a safety pin for cooperation with an ignition head and safety arm, where the safety pin is shaped like a clamp made of spring steel, with one end designed to be threaded through a hole in the ignition head and safety arm, and the other end designed to be twisted over the ignition head and secured by being drawn past protruding impediments on the ignition head or safety arm.
  • FIG. 2 shows a hand grenade equipped with a safety mechanism in accordance with the invention.
  • the grenade is equipped with an ignition head 3 and a spring loaded safety arm 11.
  • the safety arm 11 is held in place by a safety pin 12.
  • the grenade When in use, the grenade is held in one hand. The hand holds the safety arm 11 firmly against the body of the grenade. The safety pin 12 is pulled by the other hand, whereupon the grenade is thrown. When in flight, the safety arm 11 pops open and releases the firing lock, whereupon the grenade is detonated after an appropriate delay.
  • FIG. 1 shows the actual safety pin 12.
  • the safety pin 12 is in the form of a clamp, with a first end 1, a mid-section 10 and a second end 4. It may be made of spring steel wire, with a diameter of 2-3 mm.
  • the first end is threaded through an overlapping hole 2 in the safety arm 11 and the ignition head 3.
  • the end 4 of the locking arm on the safety pin 12 should not be longer than will allow for it to slide over the edge 5 of the safety arm 11 with ease.
  • the safety pin 12 is then twisted toward the top of the ignition head at the same time that the clamp is pressed in at mid-section 10, such that the other end 4 slides over locking notches 6 & 7 on the safety arm 11.
  • corresponding locking pins may be cast into the ignition head 3.
  • the safety pin 12 When the pressure on the mid-section 10 is relieved, the safety pin 12 will be locked. Identical locking notches or locking pins can be situated on both sides of the ignition head. The first end 1 of the safety pin may then be inserted from whichever side the user chooses. When the grenade is being safety-deactivated, the described locking sequence is reversed.
  • the safety pin in the present invention, is not locked upon being split and bent, and so is not subject to the aforementioned problems with respect to reinsertion. Furthermore, it is presumably easy to manufacture, as it consists solely of a simple steel wire made of spring steel. This also provides for a simple, quick installation.
  • the present invention also makes it possible to use a smaller, simpler ignition head.
  • Such an ignition head is often molded into a plastic material.
  • the simple construction which can be used in a safety mechanism according to the invention, enables the component to be molded without producing critical tensions in the plastic material. This reduces the likelihood of cracking open during the qualification test, and also during long-term storage under the constant pressure to which the threaded section is subjected after being screwed into the grenade. This storage period can last 10-20 years.
  • the invention also provides for a safer deactivation of the grenade safety mechanism.
  • the pin With the conventional solution, the pin must be pulled out against a force of 8-12 kp. This increases the likelihood of loosing one's grip on the grenade during deactivation of the safety mechanism, especially when wearing snow-covered mittens.
  • the new safety mechanism also requires a corresponding force in order to release the lock. However, this power-consuming operation takes place before the pin is withdrawn. Thus the last stage, which deactivates the safety mechanism, can be carried out without the use of force, and the likelihood of loosing the grenade is minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
EP99610065A 1999-10-18 1999-10-18 Sicherungsstift für Handgranaten Withdrawn EP1094293A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99610065A EP1094293A1 (de) 1999-10-18 1999-10-18 Sicherungsstift für Handgranaten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99610065A EP1094293A1 (de) 1999-10-18 1999-10-18 Sicherungsstift für Handgranaten

Publications (1)

Publication Number Publication Date
EP1094293A1 true EP1094293A1 (de) 2001-04-25

Family

ID=8242565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99610065A Withdrawn EP1094293A1 (de) 1999-10-18 1999-10-18 Sicherungsstift für Handgranaten

Country Status (1)

Country Link
EP (1) EP1094293A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2922009A1 (fr) * 2007-10-04 2009-04-10 Davey Bickford Snc Bouchon allumeur pour dispositif pyrotechnique a letalite reduite, grenade a main, grenade autopropulsee
CN102278917A (zh) * 2010-05-17 2011-12-14 义高潮 一种手榴弹引信的勤务保险机构
RU2762379C1 (ru) * 2021-07-26 2021-12-20 Максим Владимирович Пихоцкий Тренировочная перчатка для метания гранаты
USD1008452S1 (en) 2021-08-26 2023-12-19 Deka Products Limited Partnership Lock member

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191503619A (en) * 1915-03-06 1915-11-11 Frank Edward Baker Improvements relating to Hand Grenades.
FR503644A (fr) * 1917-08-07 1920-06-15 Marcel Gaupillat Bouchon allumeur automatique monoressort pour grenades
GB141742A (en) * 1916-06-15 1920-09-09 Albert Dewandre Improvements in fuse-controlling levers for grenades
FR593569A (fr) * 1924-04-29 1925-08-26 Nouveau bouchon allumeur pour grenades à main
FR612293A (de) * 1926-09-20
US2437001A (en) * 1944-07-03 1948-03-02 Petersen Tor Hand grenade
US3765337A (en) * 1972-02-25 1973-10-16 Us Army Hand grenade safety lock pull ring assembly
US4926752A (en) * 1989-03-07 1990-05-22 Dirubbio Vincent Safety fuze for a hand grenade
DE4140902A1 (de) 1991-12-12 1993-06-17 Diehl Gmbh & Co Kombinierte ring- und klammersicherung fuer eine handgranate
WO1997017587A1 (de) * 1995-11-08 1997-05-15 Oregon Etablissement Für Patentverwertung Zünder, insbesondere für handgranaten

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR612293A (de) * 1926-09-20
GB191503619A (en) * 1915-03-06 1915-11-11 Frank Edward Baker Improvements relating to Hand Grenades.
GB141742A (en) * 1916-06-15 1920-09-09 Albert Dewandre Improvements in fuse-controlling levers for grenades
FR503644A (fr) * 1917-08-07 1920-06-15 Marcel Gaupillat Bouchon allumeur automatique monoressort pour grenades
FR593569A (fr) * 1924-04-29 1925-08-26 Nouveau bouchon allumeur pour grenades à main
US2437001A (en) * 1944-07-03 1948-03-02 Petersen Tor Hand grenade
US3765337A (en) * 1972-02-25 1973-10-16 Us Army Hand grenade safety lock pull ring assembly
US4926752A (en) * 1989-03-07 1990-05-22 Dirubbio Vincent Safety fuze for a hand grenade
DE4140902A1 (de) 1991-12-12 1993-06-17 Diehl Gmbh & Co Kombinierte ring- und klammersicherung fuer eine handgranate
WO1997017587A1 (de) * 1995-11-08 1997-05-15 Oregon Etablissement Für Patentverwertung Zünder, insbesondere für handgranaten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2922009A1 (fr) * 2007-10-04 2009-04-10 Davey Bickford Snc Bouchon allumeur pour dispositif pyrotechnique a letalite reduite, grenade a main, grenade autopropulsee
CN102278917A (zh) * 2010-05-17 2011-12-14 义高潮 一种手榴弹引信的勤务保险机构
CN102278917B (zh) * 2010-05-17 2015-08-19 义高潮 一种手榴弹引信的勤务保险机构
RU2762379C1 (ru) * 2021-07-26 2021-12-20 Максим Владимирович Пихоцкий Тренировочная перчатка для метания гранаты
USD1008452S1 (en) 2021-08-26 2023-12-19 Deka Products Limited Partnership Lock member

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