EP0215160B1 - Sicherungssplint für Handgranaten - Google Patents

Sicherungssplint für Handgranaten Download PDF

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Publication number
EP0215160B1
EP0215160B1 EP19850305084 EP85305084A EP0215160B1 EP 0215160 B1 EP0215160 B1 EP 0215160B1 EP 19850305084 EP19850305084 EP 19850305084 EP 85305084 A EP85305084 A EP 85305084A EP 0215160 B1 EP0215160 B1 EP 0215160B1
Authority
EP
European Patent Office
Prior art keywords
hand
grenade
pin
arm part
hook
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.)
Expired
Application number
EP19850305084
Other languages
English (en)
French (fr)
Other versions
EP0215160A1 (de
Inventor
Reima T. Kaiponen
Heikki Liimatainen
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.)
Kemira Oyj
Original Assignee
Kemira Oyj
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 Kemira Oyj filed Critical Kemira Oyj
Priority to EP19850305084 priority Critical patent/EP0215160B1/de
Priority to DE8585305084T priority patent/DE3565599D1/de
Publication of EP0215160A1 publication Critical patent/EP0215160A1/de
Application granted granted Critical
Publication of EP0215160B1 publication Critical patent/EP0215160B1/de
Expired 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 relates to a hand-grenade pin.
  • this invention relates to a hand-grenade pin comprising an arm part for fitting through openings in the handle and in the body of a hand-grenade, a pulling part associated with one end of the arm part for use in withdrawing the arm part, and a locking part for use in preventing inadvertent withdrawal of the arm part.
  • the pulling ring at one end may be caught by something adjacent the grenade, and thereby the pin may be inadvertently withdrawn.
  • the cotter pin has already been withdrawn for the purpose of throwing the hand grenade, and the throwing need not be done, it is then desirable to re- secure the grenade it is impossible to re-insert . the cotter pin through the two-dimensionally precise openings spaced at a distance from each other, owing to the nature of the cotter pin, due to the flare of the branch ends of the pin.
  • the present invention seeks to provide a hand-grenade pin having the characteristics that (a) the force required for withdrawing the cotter pin is constant and (b) that inadvertent withdrawing of the cotter pin, especially during transportation, is eliminated.
  • a hand-grenade pin comprising in accordance with the preamble of claim 1, an arm part for fitting through openings in the handle and in the body of a hand-grenade, a pulling part associated with one end of the arm part for use in withdrawing the arm part, and a locking part for use in preventing inadvertent withdrawal of the arm part, said locking part having a free end for securing the arm part, said pulling part comprising a pulling ring adapted to be positioned relative to said arm part so as to engage with said pin in order to secure the hand-grenade for the duration of its transportation.
  • this pin once released is not readily re-secured.
  • the locking part of the pin extends orthogonally to the arm part and is retained by a lip formed on a band around the grenade cap. This lip, which is formed during the assembly of the grenade, will be destroyed so far as concerns its securing function, once the pin is partially pulled out. There are occasions when the pin is to be replaced and this construction would not allow the pin to be fully re-secured.
  • the pull-ring is illustrated as being engageable with the free end of the pin (i.e. the arm part) it is not readily apparent how this would be achieved. Certainly, it would appear to be difficult in practice to position the ring behind the free and pointed end of the pin (arm part).
  • the force required for withdrawing the pin (arm part) will be variable owing to the configuration and strength (resistance) of the lip on the band which holds the locking part. It will be appreciated that the extent to which this lip formation encloses the locking part of the pin may vary. With that variation so the force required to remove the pin will vary.
  • the present invention further seeks to provide a hand-grenade pin having the above characteristics (a) and (b) and also positively releasable, but also replaceable, means for securing the pin.
  • the present invention is characterised in that said locking part comprises a hook-like part having said free end which engages said arm part, said locking part, in use, extending about the handle of the hand-grenade when said arm part is secured, means for displacing said free end of said hook-like part so as to release said arm part for the withdrawal thereof, said pulling ring being engageable with a protrusion on said hook-like part for securing the hand-grenade, and wherein said pulling ring is of such size and shape that, when arranged to extend over said hand-grenade handle, it can be snapped over the said protrusion for securing the hand-grenade for the duration of transportation.
  • the hand-grenade pin above defined has a completely different and advantageous arrangement for securing the pin.
  • the pin has a locking part which has a hook-like part. It is with this hook-like part that the pull-ring engages. Thus the pin is secured by engagement of its own parts.
  • the variable force caused by the degree of flare on the prior art cotter pin or the degree to which the lip (of FR-A-593 569) encloses the pin simply does not arise.
  • the securing part in use, also extends about the handle of the hand-grenade which again distinguishes in an advantageous manner from the prior art as exemplified by FR-A-2 142 633. It will also be appreciated that, from a practical standpoint, it is a far preferable operation to place the ring over the hook-like part (defined herein) rather than manipulate the ring over the end of the arm part of the pin as suggested by FR-A-593 569.
  • the present invention also provides displacing means for positive release of the free end of the hook-like part, which is an advantageous provision not found in the prior art.
  • one end of said arm part is formed with a loop to which said pulling ring is coupled.
  • said hook-like part has a first limb which extends in spaced relation to said arm part and a second limb extending to provide said free end, said first and second limbs being joined at a pre-formed bend.
  • said displacing means is formed by said pulling ring, the arrangement being such that said pulling ring may be twisted relative to said arm part to cause said free end of said hook-like part to be urged from the position in which it secures the arm part to a position in which it permits said arm part to be released.
  • the previously known branched locking part of the cotter pin has been replaced with a hook-like part.
  • this hook-like part extends under, or preferably over, the handle of the hand-grenade.
  • the free end of the hook-like part is capable of being forced, by twisting the ring-like pulling part, to turn from behind the handle of the hand-grenade in order to enable the arm part to be withdrawn.
  • the force required to withdraw the pin has been made constant, and inadvertent withdrawal of the pin is not possible.
  • the ring-like pulling part is subjected to pulling, but it must at the same time be subjected to a twisting movement in order to force the free end of the hook-like part of the cotter pin to turn from behind the handle of the hand-grenade.
  • the bend of the hook-like part has been made to protrude somewhat, and the pulling ring is of such size and shape that, when turned over the hand-grenade handle, it can be snapped over the said protrusion in order to secure the hand-grenade for the duration of transportation. At this time the pulling ring is tightly pressed against the handle of the hand-grenade and thus cannot be caught by anything adjacent it.
  • the hook-like part extends preferably over the arm part in such a way that the arm part, together with the hook-like part, forms a loop which is completely closed but capable of being opened by twisting the pulling ring.
  • the arm part is subjected to pulling, but the pulling ring must first be snapped over the protrusion in the hook-like part. It must then be turned away from over the hand-grenade arm, and be twisted in such a way that the hook-like part turns from behind the hand-grenade handle. Thereafter the straight arm part can be withdrawn from the openings in the hand-grenade handle and body in order to detonate the hand-grenade.
  • Figure 1 depicts a hand-grenade pin in its transportation position
  • Figure 2 depicts the same pin in a state of readiness in which the pulling part is not secured.
  • the arm part is indicated by reference numeral 1 and the pulling ring by reference numeral 2.
  • a loop 4 has been formed, and the pulling ring 2 has been fitted through it.
  • the arm part 1 is connected to a hook-like part 3 on top of the arm part 1.
  • the hook-like part 3 has a first limb which extends in spaced relation to the arm part 1 and a second limb extending to provide the free end, the first and second limbs are joined at a pre-formed bend.
  • the free end of the hook-like part 3 extends over the arm part 1, thus forming a loop which is closed but can be opened by twisting the pulling ring 2.
  • the pulling ring 2 is of such size and shape that it can be turned and snapped over the protrusion 5 at the bend of the hook-like part 3, to occupy the position shown in Figure 1. In this position the pulling ring 2 rests on top of the hand-grenade handle (not shown in the figure, since it is of a conventional structure).
  • the pulling ring 2 of the hand-grenade cotter pin is in the position depicted in Figure 1. Before detonation the pulling ring 2 can be easily forced over the protrusion 5 on the hook-like part 3 and be turned to the position depicted in Figure 2. If no detonation is carried out, the pulling ring can be easily turned back over the handle of the hand-grenade and be snapped over the protrusion 5 in the hook-like part 3. If the cotter pin has been withdrawn entirely before the throwing of the hand-grenade, the straight arm part 1 can be easily pushed into place and be thus re-secured.
  • the arm part 1, the loop 4 and the hook-like part 3 are preferably of one piece and made from spring wire of suitable thickness, as is also the pulling ring 2.
  • the embodiment of the present invention provides a very simple and inexpensive hand-grenade pin, its inadvertent withdrawing having been eliminated and the force required for the withdrawing of the pin being constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Tents Or Canopies (AREA)

Claims (5)

1. Ein Handgranatenstift bestehend aus einem Armteil (1) zum Einpassen durch Öffnungen im Griff und in Körper einer Handgranate, aus einem mit einem Ende des Armteils (1) verbundenen Zugteil (2) zum Zurückziehen des Armteils (1) und aus einem Verriegelungsteil (3) zur Verhinderung eines unbeabsichtigten Zurückziehens des Armteils (1), wobei der Verriegelungsteil ein freies Ende zur Sicherung des Armteils (1) aufweist und der Zugteil einen Zugring (2) umfaßt, der relativ zum Armteil (1) so positionierbar ist, daß er in Eingriff mit dem Stift ist, um die Handgranate während der Dauer ihres Transports zu sichern, dadurch gekennzeichnet, daß der Verriegelungsteil (3) einen hakenähnlichen Teil umfaßt, der besagtes freies Ende aufweist, welches mit dem Armteil (1) in Eingriff ist, daß sich der Verriegelungsteil (3) im Gebrauch um den Griff der Handgranate herum erstreckt, wenn der Armteil (1) gesichert ist, daß Mittel vorgesehen sind zur Verschiebung des freien Endes des hakenähnlichen Teils (3), um den Armteil (1) zum Zwecke seines Zurückziehens zu lösen, wobei der Zugring (2) mit einem Vorsprung an dem hakenähnlichen Teil (3) in Eingriff bringbar ist, um die Handgranate zu sichern, und wobei der Zugring (2) von solcher Größe und Gestalt ist, daß er dann, wenn er so angeordnet ist, daß er sich über den Handgranatengriff erstreckt, über den Vorsprung (5) geschnappt werden kann, um die Handgranate während der Dauer des Transports zu sichern.
2. Ein Handgranatenstift nach Anspruch 1, bei dem ein Ende des Armteils (1) mit einer Schlaufe (4) ausgebildet ist, mit welcher der Zugring (2) gekoppelt ist.
3. Ein Handgranatenstift nach Anspruch 1 oder 2, bei dem der hakenähnliche Teil (3) ein erstes Glied aufweist, das in Abstand vom Armteil (1) verlaüft, und ein zweites Glied, welches durch seinen Verlauf das besagte freie Ende vermittelt, wobei das erste und zweite Glied an einer vorgeformten Biegung miteinander verbunden sind.
4. Ein Handgranatenstift nach Anspruch 3, bei dem der Vorsprung (5) an der Biegung ausgebildet ist.
5. Ein Handgranatenstift nach einem der Ansprüche 1 bis 4, bei dem die Verschiebemittel von dem Zugring (2) gebildet sind und die Anordnung so ist, daß der Zugring (2) relativ zum Armteil (1) gedreht werden kann, um das freie Ende des hakenähnlichen Teils (3) zu veranlassen, daß es aus der Stellung, in welcher es den Armteil (1) sichert, in eine Position gedrückt wird, in welcher es das Lösen des Armteils (1) gestattet.
EP19850305084 1985-07-17 1985-07-17 Sicherungssplint für Handgranaten Expired EP0215160B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19850305084 EP0215160B1 (de) 1985-07-17 1985-07-17 Sicherungssplint für Handgranaten
DE8585305084T DE3565599D1 (en) 1985-07-17 1985-07-17 A hand-grenade pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850305084 EP0215160B1 (de) 1985-07-17 1985-07-17 Sicherungssplint für Handgranaten

Publications (2)

Publication Number Publication Date
EP0215160A1 EP0215160A1 (de) 1987-03-25
EP0215160B1 true EP0215160B1 (de) 1988-10-12

Family

ID=8194293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850305084 Expired EP0215160B1 (de) 1985-07-17 1985-07-17 Sicherungssplint für Handgranaten

Country Status (2)

Country Link
EP (1) EP0215160B1 (de)
DE (1) DE3565599D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1008452S1 (en) 2021-08-26 2023-12-19 Deka Products Limited Partnership Lock member

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811470A (en) * 1987-07-27 1989-03-14 Honeywell Inc. Safety clip with controlled release force
DE4140902C2 (de) * 1991-12-12 1999-12-09 Diehl Stiftung & Co Sicherung für eine Handgranate mit einem Ring und einem Steckstift
US6470806B1 (en) * 2000-02-28 2002-10-29 Kenneth R. Murray Cartridge format delay igniter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR593569A (fr) * 1924-04-29 1925-08-26 Nouveau bouchon allumeur pour grenades à main
FR2142633B1 (de) * 1971-06-22 1973-05-25 Lacroix
US3765337A (en) * 1972-02-25 1973-10-16 Us Army Hand grenade safety lock pull ring assembly
AT351407B (de) * 1977-09-15 1979-07-25 Oregon Ets Patentverwertung Sicherungsvorrichtung fuer handgranatenzuender

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1008452S1 (en) 2021-08-26 2023-12-19 Deka Products Limited Partnership Lock member

Also Published As

Publication number Publication date
DE3565599D1 (en) 1988-11-17
EP0215160A1 (de) 1987-03-25

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