EP1397635A1 - Fuse for a hand grenade - Google Patents
Fuse for a hand grenadeInfo
- Publication number
- EP1397635A1 EP1397635A1 EP20020740174 EP02740174A EP1397635A1 EP 1397635 A1 EP1397635 A1 EP 1397635A1 EP 20020740174 EP20020740174 EP 20020740174 EP 02740174 A EP02740174 A EP 02740174A EP 1397635 A1 EP1397635 A1 EP 1397635A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detonator
- slide
- secured
- pin
- spring
- 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
Links
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 detonator for hand grenades according to the preamble of claim 1.
- Explosive projectiles in the form of hand grenades are notoriously known, in which a safety pin or split pin, once removed, leads to ignition. To avoid this, the trigger must be pressed firmly against the grenade; After releasing it, a hammer is released and the ignition process is delayed pyrotechnically.
- a hand grenade was therefore used to increase security
- Another hand grenade with a safety device is known from US-A-3,765,337.
- the wire lock used as a pull ring here has an essentially rectangular shape and is shaped in two planes and resiliently placed around the hinge of its release lever. The sharp The grenade is positioned in three steps. First, the part of the ring around the hinge is folded up and thus unlatched on one side, then twisted off to the side and first pulled firmly so that the folded ends of a safety pin are pulled straight out of their mounting hole. - Securing the hand grenade again would only be possible with appropriate tools such as pliers etc.
- the hand grenade to be created should not store any mechanical energy acting on the firing pin in the striking direction in the state of storage, which could cause an unwanted initiation of the grenade by a blow and / or drop.
- the security mechanism should be designed in such a way that a Accidental triggering, for example by accidentally hanging the mechanism on a projecting object is not possible.
- the grenade is unsecured for any reason, it should be safe and easy to secure again, even under difficult environmental conditions (cold, wet, etc.) and in stressful situations (preventive defense, combat, etc .).
- the subject of the invention allows the hand grenade to be brought into focus in the event of a threat and, if it is not used, to return it to the secured position without any problems.
- the safety mechanisms are designed in such a way that the grenade can be handled even in extreme cold, for example even with heavy gloves.
- the rotatable cylinder can be moved by a spring to the outer end of the eccentrically arranged groove, so that the firing pin is displaced in the locked state in a secured position relative to the longitudinal axis of the igniter.
- a coil spring is kinematically inexpensive and space-saving, the inner end of which is attached to the cylinder and the outer end of which is attached to the igniter body.
- the combination of slide and cam in one piece is particularly simple and space-saving
- An embodiment of the guide groove for the slide in the form of a curve, preferably as an elliptical curve, requires little space and causes constant and only slight friction between the cam and the groove.
- the firing pin If the firing pin is loaded with a spring against its direction of impact, it remains in its idle state even under vibrations and does not impair the displacement path of the slide.
- the design of the hammer as a two-armed lever allows it to be easily locked in the secured state on the cylindrical part of the hollow cylinder.
- a lateral milling on the cylinder itself creates its defined angular position for releasing and releasing the hammer.
- the design of the detonator bracket with side tabs enables it to be secured in opposite bores that correspond to the locking pin and at the same time serves as lateral sealing elements for covering the slide.
- the shape of the detonator bracket can easily be adapted to the kinematics of the hammer, so that it is thrown off while it is being thrown.
- FIG. 1 shows a vertical longitudinal section through an ignition device, which is screwed onto a conventional hand grenade body, in the secured state
- FIG. 2 shows a horizontal sectional illustration along the line II-II from FIG. 1, FIG.
- FIG. 3 is a vertical partial sectional view along the line III - III of FIG. 1,
- Fig. 4 is a horizontal partial sectional view along the line VI - IV of Fig. 3 and
- Fig. 5 is a vertical longitudinal section through the ignition device Fig. 1 in the unlocked state, immediately before the ignition.
- the section planes were designated as vertical and horizontal planes, although the function of the hand grenade is position-independent. In fact, however, the horizontal plane is a plane orthogonal to the longitudinal axis of the detonator, as claimed.
- An ignition device according to the invention is designated by 1 in FIG. 1. It is screwed onto a notoriously known grenade body 10, 11, which is indicated by dash-dotted lines and whose vertical longitudinal axis bears the designation A. This longitudinal axis A coincides here with the section line III - III.
- a firing pin 2 which is also known per se, is arranged above a primer 12 and results in a percussion igniter with the latter.
- the detonator bracket 20 is attached to a bearing point 40 (pivot) and can be pivoted about it and contacts the detonator body 4 on its upper end face.
- the bearing point 40 is formed as a single part and riveted to the igniter body 4 via a connecting pin 8 and a flange 9.
- 1 further shows an inner leg 30 and an outer leg 31 of the split pin 3, the middle region of an impact piece 22 abutting the outer leg 31.
- the upper end 24 of the striker 22 lies on the cylindrical portion of a hollow cylinder 50 and is thus secured against rotation; a coil spring 23 is suspended at one end 23b in the striker 22 and loads it.
- the other end 23a of the tensioned coil spring 22 is inserted into a blind hole in a pin 41.
- the striking piece 22 has a lower end, which is designated 25 and acts as a discharge bow (FIG. 5).
- a locking and pull ring 33, by a clamp holder 44 and by an annular arc 32 of the split pin 3, Fig. 2, guided, is used for unlocking before triggering the ignition process.
- a link-like slide 70 into which an axially movable ignition pin 2 is inserted.
- a spiral spring 56 in an end-side peripheral groove 53 surrounds the hollow cylinder 50 and engages with one end in the igniter body 4 which can be pivoted about its axis A and with the other end on the hollow cylinder 50, cf. Fig. 4.
- the head 11 of the grenade body 10 is screwed into an internal thread 52 (Fig. 1), which projects beyond an interior 51 and contains a known ignition chain with pyrotechnic delay.
- a peripheral groove 53 and a notch 54 can be seen.
- FIG. 2 shows the outer shape of the igniter body 4.
- twist angle ⁇ between the notches 54 and 55 (dashed lines), which characterize the path limitation of the twist of the igniter body 4.
- a lateral cut 53a which is exposed in the secured position according to FIG. 1.
- a blind hole 45 is made, into which a locking ball 61 projects and delimits a bolt 60 on its displacement path; the steps of reduced diameter are designated with 64 to 66 - cf. Fig. 3.
- An inner bore 42 is designed as a horizontally lying elongated hole, so that the inner leg 30 with its bent portion 30a can be inserted and passed through in its receiving bore 42.
- FIG. 3 shows the design of the bolt 60 with its pressure cap 60a and its lower central longitudinal bore 63, in which a return spring 62 is supported against the bottom of the igniter body 4 and holds the bolt 60 in the position shown. It can also be seen that the firing pin 2 with the slide 70 is displaced from the longitudinal axis A and that this is guided with its lateral guide cam 71 in a groove 47. The ignition pin 2 is pressed upwards by a spring and does not prevent the slide 70 from moving. The whole is covered at the top by the detonator bracket 20, the bent side edges of which act like a lid.
- the angle of rotation ⁇ predetermined by the groove 47 is 90 °.
- FIG. 5 relates to the ignition device 1 in the unlocked state, i.e. for example shortly after the throw (by hand).
- the ignition pin 2 is here on all sides with the
- the striker 22 here again has visible side straps 22 '.
- the inner bore 34 and the outer bore 35, from which the split pin 3 was pulled, can also be seen in the detonator bracket 20.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Lowering Means (AREA)
- Laminated Bodies (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Body Structure For Vehicles (AREA)
- Catching Or Destruction (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Materials For Medical Uses (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02740174T DK1397635T3 (en) | 2001-06-18 | 2002-06-17 | Detonator for a hand grenade |
EP02740174A EP1397635B1 (en) | 2001-06-18 | 2002-06-17 | Fuse for a hand grenade |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01810588 | 2001-06-18 | ||
EP01810588 | 2001-06-18 | ||
PCT/CH2002/000328 WO2002103279A1 (en) | 2001-06-18 | 2002-06-17 | Fuse for a hand grenade |
EP02740174A EP1397635B1 (en) | 2001-06-18 | 2002-06-17 | Fuse for a hand grenade |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1397635A1 true EP1397635A1 (en) | 2004-03-17 |
EP1397635B1 EP1397635B1 (en) | 2004-12-22 |
Family
ID=8183973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02740174A Expired - Lifetime EP1397635B1 (en) | 2001-06-18 | 2002-06-17 | Fuse for a hand grenade |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1397635B1 (en) |
AT (1) | ATE285563T1 (en) |
DE (1) | DE50201845D1 (en) |
DK (1) | DK1397635T3 (en) |
ES (1) | ES2235052T3 (en) |
PT (1) | PT1397635E (en) |
WO (1) | WO2002103279A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102374831B (en) * | 2010-08-11 | 2014-04-02 | 义高潮 | Safety mechanism of grenade fuse |
PL3336482T3 (en) * | 2016-12-15 | 2020-04-30 | Ruag Ammotec Ag | Method and device for enabling and disabling the safety of a manually launched projectile |
DE102017003971A1 (en) * | 2017-04-25 | 2018-10-25 | Drew Marine Signal and Safety Germany GmbH | Grenade and method for operating the same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1521996A (en) * | 1923-09-05 | 1925-01-06 | Ciano Arturo | Hand-thrown bomb |
BE511057A (en) | 1952-01-29 | |||
DE925159C (en) * | 1953-02-01 | 1955-03-14 | Oerlikon Buehrle Ag | Hand grenade with a jacket divided transversely to the longitudinal axis |
FR1238901A (en) * | 1959-07-09 | 1960-08-19 | Commerce Internat Soc Et | Improvements made to igniters for explosive devices, in particular for grenades |
CH466094A (en) * | 1966-08-09 | 1968-11-30 | Girod Henri | Mechanical instant igniter for hand grenades |
AT295361B (en) * | 1967-06-30 | 1971-12-27 | Foersvarets Fabriksverk | Detonator for a hand grenade or a land mine |
US3765337A (en) | 1972-02-25 | 1973-10-16 | Us Army | Hand grenade safety lock pull ring assembly |
US3865027A (en) | 1974-01-28 | 1975-02-11 | Richard C Dubno | Hand grenade with safety mechanism |
IL81198A0 (en) * | 1987-01-08 | 1987-08-31 | Israel State | Safetied demolition charge fuse |
-
2002
- 2002-06-17 AT AT02740174T patent/ATE285563T1/en active
- 2002-06-17 EP EP02740174A patent/EP1397635B1/en not_active Expired - Lifetime
- 2002-06-17 DK DK02740174T patent/DK1397635T3/en active
- 2002-06-17 DE DE50201845T patent/DE50201845D1/en not_active Expired - Lifetime
- 2002-06-17 ES ES02740174T patent/ES2235052T3/en not_active Expired - Lifetime
- 2002-06-17 WO PCT/CH2002/000328 patent/WO2002103279A1/en not_active Application Discontinuation
- 2002-06-17 PT PT02740174T patent/PT1397635E/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO02103279A1 * |
Also Published As
Publication number | Publication date |
---|---|
PT1397635E (en) | 2005-04-29 |
ATE285563T1 (en) | 2005-01-15 |
DK1397635T3 (en) | 2005-03-14 |
DE50201845D1 (en) | 2005-01-27 |
WO2002103279A1 (en) | 2002-12-27 |
EP1397635B1 (en) | 2004-12-22 |
ES2235052T3 (en) | 2005-07-01 |
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