EP3311102A1 - Pinless grenade igniter and grenade thus equipped - Google Patents

Pinless grenade igniter and grenade thus equipped

Info

Publication number
EP3311102A1
EP3311102A1 EP16730438.5A EP16730438A EP3311102A1 EP 3311102 A1 EP3311102 A1 EP 3311102A1 EP 16730438 A EP16730438 A EP 16730438A EP 3311102 A1 EP3311102 A1 EP 3311102A1
Authority
EP
European Patent Office
Prior art keywords
spoon
ring
stopper according
window
striker
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
EP16730438.5A
Other languages
German (de)
French (fr)
Other versions
EP3311102B1 (en
Inventor
Frédéric GOESSENS
Alain MARTIMBIANCO
Bertrand François GREGOIRE
Eric BARES
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.)
Etienne LaCroix Tous Artifices SA
Original Assignee
Etienne LaCroix Tous Artifices SA
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 Etienne LaCroix Tous Artifices SA filed Critical Etienne LaCroix Tous Artifices SA
Priority to RS20190947A priority Critical patent/RS59083B1/en
Publication of EP3311102A1 publication Critical patent/EP3311102A1/en
Application granted granted Critical
Publication of EP3311102B1 publication Critical patent/EP3311102B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B27/00—Hand grenades
    • 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
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/21—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using spring action

Definitions

  • the present invention relates to the field of lighters for grenades, as well as grenades equipped with such lighters, including hand grenades.
  • igniter plugs known for hand grenades include, as illustrated in Figure 1 attached a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a lever armament 40, also called a spoon, and a safety pin 50.
  • the igniter plug is usually screwed onto the body containing the payload of the grenade.
  • the safety pin 50 locks the spoon 40 and prohibits operation.
  • the user To initiate the igniter plug and implement the grenade, the user must remove the safety pin 50 by pulling on a ring 52 connected to this pin.
  • the unlocked lever 40 moves apart and releases the striker 20.
  • the pyrotechnic chain 10 is then initiated: the striker 20 strikes the primer 14.
  • the primer 14 ignites the delay composition 16 which activates the detonator 12 to detonate the main charge.
  • the document FR 2864220 proposes an igniter plug comprising a three-level safety device: a safety mechanism comprising a barrel movable between a passive position preventing the removal of a pin and an active position allowing it, a locking member comprising a push button manually operable between at least two stable positions, a position in which it blocks the safety mechanism in the passive position and an activation position in which it blocks the safety mechanism in the active position, and an intermediate position releasing the safety mechanism, and ignition interruption means comprising a slider disposed perpendicular to the main axis and whose end communicates with a cocking lever. The firing is thus triggered after pressing the push button, rotating the body relative to the barrel, removing the pin and release the lever to cause the translation of the slide to a position allowing the passage of fire.
  • US 8561540 discloses a grenade igniter plug, without pin, comprising a lever, a manual rotary switch and a set of percussion and initiation. At rest, the lever and the switch are engaged by respective teeth so that the lever and the switch prohibit their respective movement. To allow operation, the lever must be activated in approaching the body to release the previously engaged teeth and the switch must be turned 90 ° to carry a target next to a firing pin. The striker is released and actuated by a spring when the lever is released.
  • the document FR 2807510 discloses an igniter plug comprising a body provided with a control mechanism comprising a cocking lever and a percussion mechanism cooperating with a primary pyrotechnic module capable of ensuring the initiation of a payload and axially displaceable in the body towards this load in an initial safety position.
  • the holding means of the primary pyrotechnic module spaced axially from the main payload comprise a resiliently biased latch, an initial security position in which the lock interferes with the path of movement of the primary pyrotechnic module to prohibit its movement to the main load to a release position in which the lock deviates from the path of movement of the primary pyrotechnic module, the latch itself being initially maintained in the initial safety position by at least two mechanical locking means so that the release of the lock requires a double manipulation of these locking means.
  • the document FR 2807511 discloses an igniter plug comprising a body provided with a control mechanism comprising a cocking lever, a percussion mechanism cooperating with a primary pyrotechnic module capable of ensuring the initiation of a payload, and a latch which is engaged with the lever, in the storage position, to prohibit a free movement of the cocking lever towards its release position, the lock being shaped to impose during the implementation of the igniter plug, an initial displacement of the lever against its movement required to release the percussion mechanism to disengage the latch and the cocking lever.
  • the main objective of the present invention is to improve the security of the initiation systems that constitute igniter caps for grenades by stripping pin.
  • the pins used on most igniter plugs are identified as having nowadays two major drawbacks: firstly, the pins may, despite the significant mechanical forces necessary to ensure their removal, be removed accidentally, d ' on the other hand, the pins can therefore be modified by the users to allow a faster extraction, but consequently they present an increased risk of accidental implementation.
  • an igniter plug without pin comprising a spoon, a pyrotechnic chain and a striker adapted to initiate the pyrotechnic chain after release of the spoon, characterized in that the igniter cap further comprises a ring having at least one window and movable between a locking position in which the window is misaligned with respect to the spoon so that it can not be released and an activation position in which the window is aligned with the spoon to allow its release.
  • the invention as defined above is simple in its structure and implementation, compared to complex solutions proposed according to the state of the art.
  • the implementation of the ignition caps according to the present invention is intuitive and visual: any user is guided in the manipulation by the material visualization of the alignment of the window of the ring on the spoon to allow the release of the latter.
  • means are provided which impose at least two distinct operations or displacements to enable the ring to move between its locking position and its activation position.
  • the lever must be retracted first, then the ring must be turned to align its window on the lever in a second time.
  • the ring is adapted to be translated by pulling at first, and then turned in a second step to align its window on the lever.
  • the ring is adapted to be translated by traction in a first step, then the lever must be retracted in a second time and finally in a third time the ring must be turned to align its window on the the sink.
  • the means according to the invention impose a support on the lever at a time of the arming phase, to ensure the firing sequence. Imposing a lock by pressing the cocking lever during the sequence ensures that the implementation is not due to an accidental operation.
  • the igniter plug according to the invention comprises a spring associated with the striker.
  • the spring is biased to rest to store at rest the energy required for the implementation of the striker.
  • the spring is biased during the displacement in translation of the ring so that the spring stores during this movement the energy required for the implementation of the striker.
  • the present invention also relates to grenades equipped with an igniter plug of the aforementioned type.
  • FIG. 1 previously mentioned illustrates an igniter plug known from the state of the art
  • FIGS. 2 and 3 represent two views in longitudinal axial section of a grenade according to a first embodiment of the present invention, with on-board activation energy of a firing pin, at two successive stages of its implementation: respectively in the rest position and locking a spoon by the ring and in the spoon release position after rotation of the ring and alignment of the ring window on the spoon,
  • FIG. 4 represents a developed partial view of the inner surface of a skirt of the ring to illustrate the cooperation defined between complementary shape means respectively provided on this skirt and on the spoon to initially prohibit any rotation of the ring,
  • FIG. 5 represents a perspective view of the same grenade in the position of release of the spoon
  • FIG. 6 represents a longitudinal axial sectional view of a grenade according to a second embodiment of the present invention, with activation energy of the on-board firing pin, in the rest position,
  • FIGS. 7 to 10 represent the same grenade at four successive stages of its implementation: respectively in the resting position at rest, in the traction position of the ring, in the rotational position of the ring and in the throwing position,
  • FIGS. 11 and 12 show two variants of complementary shape means respectively provided on the internal face of the ring and on the face opposite the igniter plug, to impose a translation of the ring before allowing its rotation,
  • FIGS. 13 to 16 show a grenade according to a third embodiment of the present invention, without activation energy of the on-board striker, at four successive stages of its implementation; work: respectively in resting storage position, in the traction position of the ring, in the rotational position of the ring and in the throwing position,
  • FIGS. 17 to 22 show partially exploded views of the grenade in accordance with the third embodiment at five successive stages of its implementation: respectively in the rest position at rest, in the traction position of the ring, in the rotational position; of the ring, in the throwing and expulsion position of the spoon, in the ejection position of a firing pin holding drawer, then in the percussion position,
  • FIGS. 23 to 26 illustrate details of the structure and operation of the grenade according to the third embodiment
  • FIG. 27 represents a view in longitudinal axial section of a grenade according to the present invention.
  • FIGS. 28 to 31 show a fourth embodiment according to the present invention, more specifically FIG. 28 represents a perspective view of a ring according to this fourth embodiment, and FIGS. 29 to 31 represent views partially.
  • exploded grenade according to this fourth embodiment in three stages of its implementation: respectively in resting storage position, in the traction position of the ring, and in the biasing position of the cocking lever to allow rotation subsequent ring, the remainder of the sequence being similar to the steps illustrated in Figures 19 to 22 for the third embodiment.
  • the grenades according to the present invention illustrated in Figures 2 and following appended comprise a body 60 which houses a payload 62 and on the mouth of which is screwed an igniter plug 100.
  • the body 60, the payload 62 and the terms of connection of the igniter plug 100 to the body 60 can be the subject of many embodiments and will not be described in detail later.
  • the igniter plug 100 comprises in all embodiments according to the invention, as is known in itself, a body 110 which houses and carries a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a latch 30 and a cocking lever 40, also called spoon or trigger lever.
  • the igniter plug 100 does not include a pin locking the spoon 40.
  • the igniter plug 100 is generally screwed onto the body 60 containing the payload 62 of the grenade.
  • the body 110, the pyrotechnic chain 10 comprising the detonator 12, the primer 14 and the delay composition 16, as well as the striker 20, the spring 22, the lock 30 and the spoon 40, can be subject to numerous modes. implementation and will not be described in detail later.
  • the striker 20 is intended to strike the primer 14 after the latch 30 has ejected the lever 40 and released the striker 20.
  • the pyrotechnic chain 10 is then initiated:
  • the primer 14 ignites the delay composition 16 which activates the detonator 12 to detonate the main charge 62.
  • the igniter plug 100 further comprises a ring 120.
  • This ring 120 comprises a window 125. It is movable between a locking position (illustrated for example in FIG. 2) in which the window 125 is misaligned with respect to the spoon 40 so that it can not be released and an activation position (illustrated for example in Figure 3) in which the window 125 is aligned with the spoon 40 to allow its release and there the initiation of the pyrotechnic chain 10.
  • 0-0 a longitudinal axis of main symmetry of the body 60 and the igniter cap 100.
  • This axis 0-0 is perpendicular to the bottom 61 of the body opposite the igniter cap 100. It preferably coincides with the axis of movement of striker 20.
  • the ring 120 is rotatably mounted about the axis OO.
  • the ring 120 is essentially composed of a wall 121 in the form of a disc, perpendicular to the axis 0-0 and centered on this axis 0-0, extended by a cylindrical skirt 123 centered on the axis 0-0.
  • the wall 121 constitutes the top of the igniter plug opposite the body 60.
  • the skirt 123 surrounds the portion of the body 110 which houses the latch 30.
  • the wall 121 and the skirt 123 constitute the outer portion of the igniter plug, directly accessible for handling. .
  • the displacement of the ring 120 is therefore simple and easy.
  • the window 125 is formed in the cylindrical skirt 123. It extends over the entire height of the skirt 123.
  • the width of the window 125 considered in a peripheral direction of the skirt 123 is at least equal to the width of the spoon. 40.
  • the window covers an angular opening of between 20 and 45 °.
  • the spoon 40 is mounted to rotate about an axis 42 transverse to the axis 0-0, internal to the ring 120 and close to the wall 121. At rest the spoon 40 which extends in a longitudinal direction parallel to the 0-0 axis rests against the inner face of the ring 120, the window 125 is not aligned with the spoon 40, as seen in Figure 2.
  • the latch 30 is slidably mounted in the body 110 perpendicularly to the axis 0-0 facing the spoon 40.
  • the latch 30 is biased radially outwards by a spring 32. At rest, however, the radially outer end of the latch 30 rests against the inner face of the spoon 40 so that the latch 30 can not be ejected radially. The latch 30 thus urges the spoon 40 to bear against the inner face of the ring 120.
  • the latch 30 interferes with the path of movement of the striker 20 so that the striker 20 can not hit the primer 14.
  • the radially inner portion of the latch 30 is placed between the striker 20 and the primer 14 so that the lock prohibits clearly any contact between the striker 20 and the primer 14.
  • the latch 30 may, at rest, pass through a slot in the striker 20 to limit the movement allowed to the firing pin 20.
  • complementary shape means are provided respectively on the spoon 40 and on the inner face of the ring 120 to prevent any rotation of the ring 120.
  • These complementary shape means may be subject to different embodiments. .
  • these form-fitting means may be formed for the first embodiment illustrated in FIGS. 2 and 3, as shown diagrammatically in FIG. 4, of two longitudinal ribs 122, 124 projecting on the internal face of the skirt 123 of the 120 and that frame the spoon 40.
  • the ring 120 can not be rotated about the axis 0-0. It is necessary to disengage the spoon 40 from these two ribs 122 and 124, bringing the spoon 40 closer to the axis 0-0 to allow rotation of the ring 120.
  • the abovementioned form-fitting means may comprise at least one rib projecting from the spoon and adapted to come to rest in a complementary facing groove formed on the inner surface of the skirt 123. To release the ring 120 in rotation it is necessary to to disengage the aforementioned rib formed on the spoon of the complementary complementary groove formed on the ring.
  • a first pressing action on the lever 40, to bring it closer to the axis 0-0, must be made to release the aforementioned complementary form means and thus release the ring 120.
  • the igniter plug according to this embodiment of the present invention thus requires two distinct motions. More precisely according to the first embodiment illustrated in FIGS. 2 and 3, these two movements comprise a first movement of retraction of the spoon 40 to allow rotation of the ring 120, which constitutes a first security, operated by the action grasp the nominal grasp and the second movement is a rotation of the ring 120 to align the upper part of the spoon 40 with the notch 125 of the ring 120.
  • the complementary shape means are adapted to impose the aforementioned compound movement of the ring 120, translation and rotation, to allow the alignment of the window 125 opposite the spoon 40.
  • these form-fitting means comprise at least one pin protruding from one of the igniter plug body 110 or the ring 120 and a complementary groove formed on the the other of the ring 120 or the igniter plug body 110, which groove comprises two orthogonal segments one parallel to the axis 0-0 and the other transverse to this axis 0-0.
  • the pin 111 is formed on the body 110 and the groove 126 formed on the inner surface of the skirt 123 comprises two segments 127 and 128.
  • the pin 129 is projecting on the inner surface of the skirt 123 and the groove 116 formed on the body 110 comprises two segments 117 and 118.
  • FIGS. 6 to 10 The operation of the embodiment illustrated in FIGS. 6 to 10 generally remains similar to that previously described for the first embodiment with reference to FIGS. 2 to 5.
  • This embodiment corresponds to a case with on-board activation energy of a striker 20, that is to say that the spring 22 associated with the striker 20 is pre-stressed at rest to store the energy necessary to ensure the percussion of the primer by the striker 20 when the latch 30 is removed.
  • the ring 120 In a first step, the ring 120 must be driven in translation along the axis 0-0 away from the body 60 as illustrated in FIG. 8.
  • the ring 120 is rotated around the axis 0-0 to align the window 125 with the spoon as shown in FIG. 9.
  • the spoon 40 is then ejected to allow the activation of the pyrotechnic chain if the grenade is launched at this stage.
  • FIG. 6 shows an optional spring 130 centered on the axis 0-0 and working on traction between the body 110 and the ring 120, in order to urge the ring 120 in its initial rest position pressed against the body 110 of the igniter plug to limit the risk of accidental activation of the igniter plug.
  • FIGS. 13 to 26 The embodiment illustrated in FIGS. 13 to 26 will now be described.
  • a body 60 which houses a payload 62 and on the mouth of which is screwed an igniter plug 100.
  • the igniter plug 100 without spoon, comprises a body 110 which houses and carries a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a lock 30 and a lever arming 40, also called spoon.
  • the igniter plug 100 also comprises a ring 120 which includes a window 125, which ring 120 is movable between a locking position in which the window 125 is misaligned with respect to the spoon 40 so that it can not be released and a activation position, obtained by two successive movements of translation along the axis 0-0 and rotation along this axis 0-0 in which the window 125 is aligned with the spoon 40 to allow its release and from there the initiation of the pyrotechnic chain 10.
  • this embodiment illustrated in FIGS. 13 to 26 corresponds to a case without on-board activation energy of striker 20. That is to say that according to the embodiment illustrated in FIGS. 13 to 26, the spring 22 associated with striker 20 is not requested at rest so that it does not store energy capable of moving the firing pin 20. In this case the spring is stressed only when the ring 120 is translated. This provision makes it possible to further enhance the safety the lighter plug and the grenade thus equipped.
  • the spring 22 working in compression, is placed between an abutment 115 formed on the body 110 and directed towards the center of the body 60, and a flange 25 bonded to the inner end of the striker 20.
  • the striker 20 is also connected by means 200 of temporary connection, which will be described in more detail later, with the ring 120.
  • the spring 22 is compressed when a pull is made on the ring 120, bringing the collar closer. aforementioned 25 of the abutment 115 above.
  • the temporary connection means 200 comprise an expandable claw 210 connected to one of the ring 120 or striker 20, which cooperates with a fastening ball joint 29 connected to the other of the striker 20 or the ring 120.
  • the claw 210 may be formed for example of at least two expandable jaws equidistributed around the axis 0-0.
  • This expandable claw 210 cooperates with a drawer 220.
  • the drawer 220 has the function of prohibiting the expansion of the claw 210 as the spoon 40 is in place.
  • the drawer 220 is preferably placed between the latch 30 and the cap 121 of the ring 120.
  • the drawer 220 is mounted in radial translation in the body 110 perpendicular to the axis 0-0 facing the end of the spoon 40 near its axis of rotation 42.
  • the drawer 220 is biased radially outwardly By a spring 222.
  • the radially outer end of the slide 220 rests against the inner face of the spoon 40 so that the slide 220 can not be ejected radially.
  • the drawer 220 is ejected when the spoon 40 is retracted.
  • the striker 20 is mounted in translation in a central bore 119 of the body 110, centered on the axis 0-0.
  • the slide 220 has a through longitudinal lumen 224 intersecting the bore 119.
  • the width of the lumen 224 is preferably equal to the diameter of the bore 119 and equal to the transverse dimension of the claw 210 in the retracted position. that is to say the size of the claw 210 tightened on the ball 29 considered transversely to the axis 0-0.
  • the claw 210 is no longer confined by the light 119 and can expand, under the effect of the solicitation of the associated spring 22 striker 20, then constrained.
  • the expandable claw 210 is formed on the end of a rod 129 made of material on the inner face of the wall 121 and centered on the axis 0-0.
  • the ring 120 In a first step, the ring 120 must be driven in translation along the axis 0-0 away from the body 60 as illustrated in FIG. 14. As illustrated in FIGS. 18 and 24, the claw 210 which traps the ball joint 29 causes the striker 20. The spring 22 associated with the striker 20 is then constrained. The claw 210 is now positioned in the lumen 224 of the drawer 220. It therefore remains confined. Then, in a second step, the ring 120 is rotated around the axis 0-0 to align the window 125 with the spoon 40 as illustrated in FIG. 15. As illustrated in FIGS. 19 and 25, the claw 210 remains positioned in the light 224 of the drawer 220 and still traps the ball joint 29. The latch 30 always ensures the mechanical safety of the grenade because it interferes with the path of the striker 20 and prevents it from striking the primer 14.
  • the spoon 40 is then ejected to allow the activation of the pyrotechnic chain if the grenade is launched at this stage.
  • the drawer 220 is then ejected.
  • the claw 210 is finally positioned in the volume previously housing the drawer 220. It can expand and release the ball 29.
  • the striker 20 released by the separation of the ball 29 and the claw 210, can strike the primer 14 to initiate the pyrotechnic chain.
  • FIG. 27 differs only from the embodiment previously described with reference to FIGS. 13 to 26 in that, according to FIGS. 13 to 26, the latch 30 is engaged in a longitudinal through-hole of the firing pin. the striking end of the striker 20 being placed facing the primer 14, or the side of the latch 30 located towards the primer 14, so that the striker 20 extends at rest on either side of the latch 30, then that according to the embodiment illustrated in Figure 27, at rest the latch 30 is interposed between the striker 20 and the primer 14 so that the percussion end of the striker 20 is placed in abutment against the latch 30.
  • the means according to the invention described above offer the advantages of imposing a gripping of the grenade in a secure manner because imposing a maintenance of the spoon 40 in the palm of the hand, without complicating or lengthening the setting implemented. It should also be noted that the invention offers total reversibility as long as the spoon is not relaxed. Indeed the ring 120 can be moved in the opposite direction and be brought back to the storage security position as the spoon 40 is not ejected.
  • FIGS. 28 to 31 illustrate an alternative embodiment of the second embodiment illustrated in FIGS. 7 to 11 or the third embodiment illustrated in FIGS. 14 to 23, which constitutes a fourth embodiment in accordance with the present invention.
  • invention and which is characterized by the presence of complementary shape means respectively provided on the ring 120 and the spoon 40 to require that the lever or spoon 40 is retracted in an intermediate step between a first step in which the ring 120 is translated by traction and a last manipulation step during which the ring 120 must be turned to align its window 125 on the lever 40.
  • the abovementioned form-fitting means may comprise a groove 1200 formed on the inner surface of the skirt 123 and complementary to the spoon 40 or of a rib projecting from the spoon 40 and adapted to receive this one at rest. To release the ring 120 in rotation it is necessary to disengage the spoon 40 from the complementary groove 1200 formed opposite the baguel20.
  • these complementary shape means can be formed as shown diagrammatically in FIG. 4, with two longitudinal ribs 122, 124 projecting on the inner face of the skirt 123 of the ring 120 and which frame the spoon 40. As long as the spoon 40 is located between these two ribs 122 and 124, the ring 120 can not be rotated about the axis 0-0. It is necessary to disengage the spoon 40 from these two ribs 122 and 124, bringing the spoon 40 closer to the axis 0-0 to allow rotation of the ring 120.
  • the igniter plug may optionally include an initial pyrotechnic chain rupture formed by a physical separation between the primary explosive means and the secondary explosive means, which pyrotechnic chain break is neutralized to eliminate the physical separation between the primary explosive means and the secondary explosive means during arming.
  • the striker described above can be replaced by a rotary striker.
  • the igniter cap can be directly integrated into the grenade and not formed of a separate component adapted to be added to a grenade.
  • the igniter plug according to the present invention can be implemented by rotating the ring 120 in a direction or in the opposite direction.
  • the ignition plug according to the present invention is therefore perfectly suitable for any user, whether right-handed or left-handed.
  • the igniter plug thus has an ambidextrous character.
  • This ambidextrous character can be particularly achieved if at rest the window 125 is disposed at 180 ° of the lever 40. In this case indeed the angle of rotation of the ring 120 to bring the window 125 facing the lever 140 is identical and equal at 180 ° regardless of the direction of rotation of the ring 120.

Abstract

The present invention relates to a pinless igniter comprising a lever (40), a pyrotechnic chain (10) and a striker (20) designed to initiate the pyrotechnic chain (10) after the lever (40) has been released, characterized in that the igniter further comprises a ring (120) comprising an opening (125) and able to move between a locking position in which the opening (125) is misaligned in relation to the lever (40) so that the latter cannot be released, and an activation position in which the opening (125) is aligned with the lever to allow same to be released. The invention relates to pinless grenades so equipped.

Description

BOUCHON ALLUMEUR SANS GOUPILLE POUR GRENADE ET GRENADE AINSI EQUIPEE  IGNITION CAP WITHOUT PIN FOR GRANADA AND GRENADA SO EQUIPPED
La présente invention concerne le domaine des bouchons allumeurs pour grenades, ainsi que les grenades équipées de tels bouchons allumeurs, notamment les grenades à main. The present invention relates to the field of lighters for grenades, as well as grenades equipped with such lighters, including hand grenades.
Il existe de nombreux types de bouchons allumeurs pour grenades.  There are many types of lighter plugs for grenades.
La plupart des bouchons allumeurs connus pour grenades à main comprennent, comme illustré sur la figure 1 annexée une chaîne pyrotechnique 10 comprenant un détonateur 12, une amorce 14 associée à une composition retard 16, un percuteur 20 associé à un ressort 22, un levier d'armement 40, aussi appelé cuiller, et une goupille de sécurité 50.  Most igniter plugs known for hand grenades include, as illustrated in Figure 1 attached a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a lever armament 40, also called a spoon, and a safety pin 50.
Le bouchon allumeur est généralement vissé sur le corps contenant la charge utile de la grenade.  The igniter plug is usually screwed onto the body containing the payload of the grenade.
Au repos, la goupille de sécurité 50 verrouille la cuiller 40 et interdit le fonctionnement.  At rest, the safety pin 50 locks the spoon 40 and prohibits operation.
Pour initier le bouchon allumeur et mettre en œuvre la grenade, l'utilisateur doit retirer la goupille de sécurité 50 par traction sur un anneau 52 lié à cette goupille.  To initiate the igniter plug and implement the grenade, the user must remove the safety pin 50 by pulling on a ring 52 connected to this pin.
Au lancement, le levier 40 déverrouillé s'écarte et libère le percuteur 20. La chaîne pyrotechnique 10 est alors initiée : le percuteur 20 frappe l'amorce 14. L'amorce 14 enflamme la composition retard 16 qui active le détonateur 12 pour faire exploser la charge principale.  At launch, the unlocked lever 40 moves apart and releases the striker 20. The pyrotechnic chain 10 is then initiated: the striker 20 strikes the primer 14. The primer 14 ignites the delay composition 16 which activates the detonator 12 to detonate the main charge.
Des accidents ayant été constatés sur les théâtres d'opérations, liés aux dispositifs d'armement des grenades par goupille, il s'est avéré nécessaire de sécuriser les dispositifs d'initiation.  As accidents have been observed in the theaters of operations, linked to the devices for arming grenades by pin, it has proved necessary to secure the initiation devices.
De nombreuses solutions de sécurisation ont déjà été proposées. On trouvera des exemples de solutions connues dans les documents suivants : US 3865027, US 3765337, CH 466094, US 1521996, GB 1232283, US 2737116, US 4730559, FR 2825462, FR 2864220, ES 2067355, WO 2012/080998, US 8561540, FR 2807510 et FR 2807511. Many security solutions have already been proposed. Examples of known solutions can be found in the following documents: US 3865027, US 3765337, CH 466094, US 1521996, GB 1232283, US 2737116, US 4730559, FR 2825462, FR. 2864220, ES 2067355, WO 2012/080998, US 8561540, FR 2807510 and FR 2807511.
Certaines solutions consistent à empêcher le retrait accidentel de la goupille de sécurité comme dans les publications US 3865027 et US 3765337.  Some solutions are to prevent the accidental removal of the safety pin as in US 3865027 and US 3765337.
D'autres solutions consistent à bloquer le mécanisme de percussion comme décrit dans les documents CH 466094, US 1521996 et GB 1232283.  Other solutions consist in blocking the percussion mechanism as described in documents CH 466094, US 1521996 and GB 1232283.
D'autres solutions consistent à désaxer le percuteur 20 ou l'amorce 14 par rapport à la chaîne pyrotechnique complète comme proposé dans les documents US 2737116, US 4730559 et FR 2825462.  Other solutions consist in off-centering the firing pin 20 or the primer 14 with respect to the complete pyrotechnic chain as proposed in the documents US Pat. No. 2,737,116, US Pat. No. 4,730,559 and FR No. 2,825,462.
Le document FR 2864220 propose un bouchon allumeur comprenant un dispositif de sécurité à trois niveaux : un mécanisme de sécurité comprenant un barillet mobile entre une position passive empêchant le retrait d'une goupille et une position active l'autorisant, un organe de verrouillage comportant un bouton poussoir actionnable manuellement entre au moins deux positions stables, une position dans laquelle il bloque le mécanisme de sécurité en position passive et une position d'activation dans laquelle il bloque le mécanisme de sécurité en position active, ainsi qu'une position intermédiaire libérant le mécanisme de sécurité, et des moyens d'interruption de l'allumage comportant un coulisseau disposé de façon perpendiculaire à l'axe principal et dont l'extrémité communique avec un levier d'armement. La mise à feu est ainsi déclenchée après appui sur le bouton poussoir, rotation du corps par rapport au barillet, retrait de la goupille et lâcher du levier afin d'entraîner la translation du coulisseau vers une position autorisant le passage du feu.  The document FR 2864220 proposes an igniter plug comprising a three-level safety device: a safety mechanism comprising a barrel movable between a passive position preventing the removal of a pin and an active position allowing it, a locking member comprising a push button manually operable between at least two stable positions, a position in which it blocks the safety mechanism in the passive position and an activation position in which it blocks the safety mechanism in the active position, and an intermediate position releasing the safety mechanism, and ignition interruption means comprising a slider disposed perpendicular to the main axis and whose end communicates with a cocking lever. The firing is thus triggered after pressing the push button, rotating the body relative to the barrel, removing the pin and release the lever to cause the translation of the slide to a position allowing the passage of fire.
Le document US 8561540 divulgue un bouchon allumeur pour grenade, sans goupille, comprenant un levier, un commutateur rotatif manuel et un ensemble de percussion et d'initiation. Au repos, le levier et le commutateur sont en prise par des dentures respectives de sorte que le levier et le commutateur interdisent leur déplacement respectif. Pour autoriser le fonctionnement, le levier doit être sollicité en rapprochement du corps pour libérer les dents précédemment en prise et le commutateur doit être tourné de 90° pour porter une cible en regard d'un percuteur. Le percuteur est libéré et actionné par un ressort lorsque le levier est relâché. US 8561540 discloses a grenade igniter plug, without pin, comprising a lever, a manual rotary switch and a set of percussion and initiation. At rest, the lever and the switch are engaged by respective teeth so that the lever and the switch prohibit their respective movement. To allow operation, the lever must be activated in approaching the body to release the previously engaged teeth and the switch must be turned 90 ° to carry a target next to a firing pin. The striker is released and actuated by a spring when the lever is released.
Le document FR 2807510 décrit un bouchon allumeur comportant un corps muni d'un mécanisme de commande comprenant un levier d'armement et un mécanisme de percussion coopérant avec un module pyrotechnique primaire apte à assurer l'initiation d'une charge utile et déplaçable axialement dans le corps vers cette charge dans une position initiale de sécurité. Les moyens de maintien du module pyrotechnique primaire écartés axialement de la charge principale utile comprennent un verrou sollicité élastiquement, d'une position de sécurité initiale dans laquelle le verrou interfère avec le trajet de déplacement du module pyrotechnique primaire pour interdire son déplacement vers la charge principale, vers une position de libération dans laquelle le verrou s'écarte du trajet de déplacement du module pyrotechnique primaire, le verrou étant lui-même maintenu initialement dans la position de sécurité initiale par au moins deux moyens de blocage mécanique de sorte que la libération du verrou nécessite une double manipulation de ces moyens de blocage.  The document FR 2807510 discloses an igniter plug comprising a body provided with a control mechanism comprising a cocking lever and a percussion mechanism cooperating with a primary pyrotechnic module capable of ensuring the initiation of a payload and axially displaceable in the body towards this load in an initial safety position. The holding means of the primary pyrotechnic module spaced axially from the main payload comprise a resiliently biased latch, an initial security position in which the lock interferes with the path of movement of the primary pyrotechnic module to prohibit its movement to the main load to a release position in which the lock deviates from the path of movement of the primary pyrotechnic module, the latch itself being initially maintained in the initial safety position by at least two mechanical locking means so that the release of the lock requires a double manipulation of these locking means.
Le document FR 2807511 divulgue un bouchon allumeur comprenant un corps muni d'un mécanisme de commande comprenant un levier d'armement, un mécanisme de percussion coopérant avec un module pyrotechnique primaire apte à assurer l'initiation d'une charge utile, et un verrou qui est en prise avec le levier, en position de stockage, pour interdire un libre déplacement du levier d'armement vers sa position de libération, le verrou étant conformé pour imposer lors de la mise en œuvre du bouchon allumeur, un déplacement initial du levier à encontre de son déplacement requis pour libérer le mécanisme de percussion afin de désengager le verrou et le levier d'armement.  The document FR 2807511 discloses an igniter plug comprising a body provided with a control mechanism comprising a cocking lever, a percussion mechanism cooperating with a primary pyrotechnic module capable of ensuring the initiation of a payload, and a latch which is engaged with the lever, in the storage position, to prohibit a free movement of the cocking lever towards its release position, the lock being shaped to impose during the implementation of the igniter plug, an initial displacement of the lever against its movement required to release the percussion mechanism to disengage the latch and the cocking lever.
Toutes les solutions connues, bien que permettant d'atteindre une certaine sécurisation s'avèrent complexes et ne donnent pas totalement satisfaction. L'objectif principal de la présente invention est d'améliorer la sécurisation des systèmes d'initiation que constituent des bouchons allumeurs pour grenades en les dénuant de goupille. All the known solutions, although allowing to reach a certain security prove complex and do not give completely satisfaction. The main objective of the present invention is to improve the security of the initiation systems that constitute igniter caps for grenades by stripping pin.
En effet, les goupilles utilisées sur la plupart des bouchons allumeurs sont identifiées comme présentant de nos jours deux inconvénients majeurs : d'une part, les goupilles peuvent, en dépit des efforts mécaniques importants nécessaires pour assurer leur retrait, être enlevées accidentellement, d'autre part, les goupilles peuvent en conséquence être modifiées par les utilisateurs pour permettre une extraction plus rapide, mais en conséquence elles présentent alors un risque accru de mise en œuvre accidentelle.  Indeed, the pins used on most igniter plugs are identified as having nowadays two major drawbacks: firstly, the pins may, despite the significant mechanical forces necessary to ensure their removal, be removed accidentally, d ' on the other hand, the pins can therefore be modified by the users to allow a faster extraction, but consequently they present an increased risk of accidental implementation.
L'objectif précité est atteint dans le cadre de l'invention grâce à un bouchon allumeur dénué de goupille, comprenant une cuiller, une chaîne pyrotechnique et un percuteur adapté pour initier la chaîne pyrotechnique après libération de la cuiller, caractérisé par le fait que le bouchon allumeur comprend en outre une bague comportant au moins une fenêtre et mobile entre une position de verrouillage dans laquelle la fenêtre est désalignée par rapport à la cuiller de sorte que celle-ci ne peut être libérée et une position d'activation dans laquelle la fenêtre est alignée avec la cuiller pour permettre sa libération.  The aforementioned objective is achieved within the scope of the invention by means of an igniter plug without pin, comprising a spoon, a pyrotechnic chain and a striker adapted to initiate the pyrotechnic chain after release of the spoon, characterized in that the igniter cap further comprises a ring having at least one window and movable between a locking position in which the window is misaligned with respect to the spoon so that it can not be released and an activation position in which the window is aligned with the spoon to allow its release.
L'invention telle que définie ci-dessus s'avère simple dans sa structure et ses modalités de mise en œuvre, par rapport aux solutions complexes proposées selon l'état de la technique. La mise en œuvre des bouchons allumeurs conformes à la présente invention est intuitive et visuelle : tout utilisateur est guidé dans la manipulation par la visualisation matérielle de l'alignement de la fenêtre de la bague sur la cuiller pour permettre la libération de cette dernière.  The invention as defined above is simple in its structure and implementation, compared to complex solutions proposed according to the state of the art. The implementation of the ignition caps according to the present invention is intuitive and visual: any user is guided in the manipulation by the material visualization of the alignment of the window of the ring on the spoon to allow the release of the latter.
Selon une autre caractéristique avantageuse de l'invention, il est prévu des moyens qui imposent au moins deux opérations ou déplacements distincts pour permettre le déplacement de la bague entre sa position de verrouillage et sa position d'activation.  According to another advantageous characteristic of the invention, means are provided which impose at least two distinct operations or displacements to enable the ring to move between its locking position and its activation position.
L'exigence d'au moins deux opérations distinctes pour permettre le déplacement de la bague offre notamment les avantages suivants : la manipulation de la grenade équipée d'un tel bouchon allumeur peut être opérée en toute sécurité car les deux opérations précitées constituent une double sécurité, l'inviolabilité et la sécurité sont accrues, mais néanmoins l'ergonomie et le temps de mise en œuvre sont préservés. The requirement of at least two distinct operations to allow the displacement of the ring notably offers the following advantages: handling of the grenade equipped with such an igniter plug can be operated safely because the two aforementioned operations are a double security, the inviolability and security are increased, but nevertheless the ergonomics and the implementation time are preserved .
Selon une première modalité de mise en œuvre, le levier doit être escamoté dans un premier temps, puis la bague doit être tournée pour aligner sa fenêtre sur le levier dans un second temps.  According to a first mode of implementation, the lever must be retracted first, then the ring must be turned to align its window on the lever in a second time.
Selon une deuxième modalité de mise en œuvre, la bague est adaptée pour être translatée par traction dans un premier temps, puis être tournée dans un deuxième temps pour aligner sa fenêtre sur le levier.  According to a second embodiment, the ring is adapted to be translated by pulling at first, and then turned in a second step to align its window on the lever.
Selon une troisième modalité de mise en œuvre, la bague est adaptée pour être translatée par traction dans un premier temps, puis le levier doit être escamoté dans un deuxième temps et enfin dans un troisième temps la bague doit être tournée pour aligner sa fenêtre sur le levier.  According to a third mode of implementation, the ring is adapted to be translated by traction in a first step, then the lever must be retracted in a second time and finally in a third time the ring must be turned to align its window on the the sink.
De préférence les moyens conformes à l'invention imposent un appui sur le levier à un moment de la phase d'armement, pour assurer la séquence de mise à feu. Imposer un blocage par la pression sur le levier d'armement en cours de séquence permet d'assurer que la mise en œuvre n'est pas due à une opération accidentelle.  Preferably the means according to the invention impose a support on the lever at a time of the arming phase, to ensure the firing sequence. Imposing a lock by pressing the cocking lever during the sequence ensures that the implementation is not due to an accidental operation.
Le bouchon allumeur conforme à l'invention comprend un ressort associé au percuteur. Selon un premier mode de réalisation, le ressort est sollicité au repos pour stocker au repos l'énergie nécessaire à la mise en œuvre du percuteur. Selon un deuxième mode de réalisation, le ressort est sollicité lors du déplacement en translation de la bague de sorte que le ressort stocke lors de ce déplacement l'énergie nécessaire à la mise en œuvre du percuteur.  The igniter plug according to the invention comprises a spring associated with the striker. According to a first embodiment, the spring is biased to rest to store at rest the energy required for the implementation of the striker. According to a second embodiment, the spring is biased during the displacement in translation of the ring so that the spring stores during this movement the energy required for the implementation of the striker.
La présente invention concerne également les grenades équipées d'un bouchon allumeur du type précité.  The present invention also relates to grenades equipped with an igniter plug of the aforementioned type.
D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre et en regard des dessins annexés donnés à titre d'exemples non limitatifs et sur lesquels : Other features, objects and advantages of the present invention will appear on reading the detailed description which will follow and with reference to the attached drawings given by way of non-limiting examples and in which:
- la figure 1 précédemment mentionnée illustre un bouchon allumeur connu de l'état de la technique,  FIG. 1 previously mentioned illustrates an igniter plug known from the state of the art,
- les figures 2 et 3 représentent deux vues en coupe axiale longitudinale d'une grenade conforme à un premier mode de réalisation de la présente invention, avec énergie embarquée d'activation d'un percuteur, à deux stades successifs de sa mise en œuvre : respectivement en position de repos et de verrouillage d'une cuiller par la bague et en position de libération de la cuiller après rotation de la bague et alignement de la fenêtre de la bague sur la cuiller, FIGS. 2 and 3 represent two views in longitudinal axial section of a grenade according to a first embodiment of the present invention, with on-board activation energy of a firing pin, at two successive stages of its implementation: respectively in the rest position and locking a spoon by the ring and in the spoon release position after rotation of the ring and alignment of the ring window on the spoon,
- la figure 4 représente une vue partielle développée de la surface interne d'une jupe de la bague pour illustrer la coopération définie entre des moyens à complément de forme prévus respectivement sur cette jupe et sur la cuiller pour interdire initialement toute rotation de la bague,  FIG. 4 represents a developed partial view of the inner surface of a skirt of the ring to illustrate the cooperation defined between complementary shape means respectively provided on this skirt and on the spoon to initially prohibit any rotation of the ring,
- la figure 5 représente une vue en perspective de la même grenade en position de libération de la cuiller,  FIG. 5 represents a perspective view of the same grenade in the position of release of the spoon;
- la figure 6 représente une vue en coupe axiale longitudinale d'une grenade conforme à un deuxième mode de réalisation de la présente invention, avec énergie d'activation du percuteur embarquée, en position de repos,  FIG. 6 represents a longitudinal axial sectional view of a grenade according to a second embodiment of the present invention, with activation energy of the on-board firing pin, in the rest position,
- les figures 7 à 10 représentent la même grenade à quatre stades successifs de sa mise en œuvre : respectivement en position de stockage au repos, en position de traction de la bague, en position de rotation de la bague et en position de lancer,  FIGS. 7 to 10 represent the same grenade at four successive stages of its implementation: respectively in the resting position at rest, in the traction position of the ring, in the rotational position of the ring and in the throwing position,
- les figures 11 et 12 représentent deux variantes de moyens à complément de forme prévus respectivement sur la face interne de la bague et sur la face en regard du bouchon allumeur, pour imposer une translation de la bague avant d'autoriser sa rotation,  FIGS. 11 and 12 show two variants of complementary shape means respectively provided on the internal face of the ring and on the face opposite the igniter plug, to impose a translation of the ring before allowing its rotation,
- les figures 13 à 16 représentent une grenade conforme à un troisième mode de réalisation de la présente invention, sans énergie d'activation du percuteur embarquée, à quatre stades successifs de sa mise en œuvre : respectivement en position de stockage au repos, en position de traction de la bague, en position de rotation de la bague et en position de lancer, FIGS. 13 to 16 show a grenade according to a third embodiment of the present invention, without activation energy of the on-board striker, at four successive stages of its implementation; work: respectively in resting storage position, in the traction position of the ring, in the rotational position of the ring and in the throwing position,
- les figures 17 à 22 représentent des vues partiellement éclatées de la grenade conforme au troisième mode de réalisation à cinq stades successifs de sa mise en œuvre : respectivement en position de stockage au repos, en position de traction de la bague, en position de rotation de la bague, en position de lancer et expulsion de la cuiller, en position d'éjection d'un tiroir de maintien de percuteur, puis en position de percussion,  FIGS. 17 to 22 show partially exploded views of the grenade in accordance with the third embodiment at five successive stages of its implementation: respectively in the rest position at rest, in the traction position of the ring, in the rotational position; of the ring, in the throwing and expulsion position of the spoon, in the ejection position of a firing pin holding drawer, then in the percussion position,
- les figures 23 à 26 illustrent des détails de la structure et du fonctionnement de la grenade conforme au troisième mode de réalisation,  FIGS. 23 to 26 illustrate details of the structure and operation of the grenade according to the third embodiment,
- la figure 27 représente une vue en coupe axiale longitudinale d'une grenade conforme à la présente invention, et  FIG. 27 represents a view in longitudinal axial section of a grenade according to the present invention, and
- les figures 28 à 31 représentent un quatrième mode de réalisation conforme à la présente invention, plus précisément la figure 28 représente une vue en perspective d'une bague conforme à ce quatrième mode de réalisation, et les figures 29 à 31 représentent des vues partiellement éclatées de la grenade conforme à ce quatrième mode de réalisation à trois stades de sa mise en œuvre : respectivement en position de stockage au repos, en position de traction de la bague, et en position de sollicitation du levier d'armement pour autoriser la rotation ultérieure de la bague, la suite de la séquence étant similaire aux étapes illustrées sur les figures 19 à 22 pour le troisième mode de réalisation.  FIGS. 28 to 31 show a fourth embodiment according to the present invention, more specifically FIG. 28 represents a perspective view of a ring according to this fourth embodiment, and FIGS. 29 to 31 represent views partially. exploded grenade according to this fourth embodiment in three stages of its implementation: respectively in resting storage position, in the traction position of the ring, and in the biasing position of the cocking lever to allow rotation subsequent ring, the remainder of the sequence being similar to the steps illustrated in Figures 19 to 22 for the third embodiment.
Les grenades conformes à la présente invention illustrées sur les figures 2 et suivantes annexées comprennent un corps 60 qui loge une charge utile 62 et sur l'embouchure duquel est vissé un bouchon allumeur 100.  The grenades according to the present invention illustrated in Figures 2 and following appended comprise a body 60 which houses a payload 62 and on the mouth of which is screwed an igniter plug 100.
Le corps 60, la charge utile 62 et les modalités de liaison du bouchon allumeur 100 sur le corps 60 peuvent faire l'objet de nombreux modes de réalisation et ne seront pas décrits dans le détail par la suite. Le bouchon allumeur 100 comprend dans l'ensemble des modes de réalisation conformes à l'invention, comme cela est connu en soit, un corps 110 qui loge et porte une chaîne pyrotechnique 10 comprenant un détonateur 12, une amorce 14 associée à une composition retard 16, un percuteur 20 associé à un ressort 22, un verrou 30 et un levier d'armement 40, aussi appelé cuiller ou levier de déclenchement. The body 60, the payload 62 and the terms of connection of the igniter plug 100 to the body 60 can be the subject of many embodiments and will not be described in detail later. The igniter plug 100 comprises in all embodiments according to the invention, as is known in itself, a body 110 which houses and carries a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a latch 30 and a cocking lever 40, also called spoon or trigger lever.
Selon l'invention le bouchon allumeur 100 ne comprend pas de goupille verrouillant la cuiller 40.  According to the invention, the igniter plug 100 does not include a pin locking the spoon 40.
Le bouchon allumeur 100 est généralement vissé sur le corps 60 contenant la charge utile 62 de la grenade.  The igniter plug 100 is generally screwed onto the body 60 containing the payload 62 of the grenade.
Le corps 110, la chaîne pyrotechnique 10 comprenant le détonateur 12, l'amorce 14 et la composition de retard 16, ainsi que le percuteur 20, le ressort 22, le verrou 30 et la cuiller 40, peuvent faire l'objet de nombreux modes de réalisation et ne seront pas décrits dans le détail par la suite.  The body 110, the pyrotechnic chain 10 comprising the detonator 12, the primer 14 and the delay composition 16, as well as the striker 20, the spring 22, the lock 30 and the spoon 40, can be subject to numerous modes. implementation and will not be described in detail later.
On rappelle néanmoins que le percuteur 20 est destiné à frapper l'amorce 14 après que le verrou 30 a éjecté le levier 40 et libéré le percuteur 20. La chaîne pyrotechnique 10 est alors initiée : L'amorce 14 enflamme la composition retard 16 qui active le détonateur 12 pour faire exploser la charge principale 62.  However, it is recalled that the striker 20 is intended to strike the primer 14 after the latch 30 has ejected the lever 40 and released the striker 20. The pyrotechnic chain 10 is then initiated: The primer 14 ignites the delay composition 16 which activates the detonator 12 to detonate the main charge 62.
Comme on l'a indiqué précédemment, selon l'invention, le bouchon allumeur 100 comprend en outre une bague 120. Cette bague 120 comporte une fenêtre 125. Elle est mobile entre une position de verrouillage (illustrée par exemple figure 2) dans laquelle la fenêtre 125 est désalignée par rapport à la cuiller 40 de sorte que celle-ci ne peut être libérée et une position d'activation (illustrée par exemple figure 3) dans laquelle la fenêtre 125 est alignée avec la cuiller 40 pour permettre sa libération et de là l'initiation de la chaîne pyrotechnique 10.  As indicated previously, according to the invention, the igniter plug 100 further comprises a ring 120. This ring 120 comprises a window 125. It is movable between a locking position (illustrated for example in FIG. 2) in which the window 125 is misaligned with respect to the spoon 40 so that it can not be released and an activation position (illustrated for example in Figure 3) in which the window 125 is aligned with the spoon 40 to allow its release and there the initiation of the pyrotechnic chain 10.
Sur les figures annexées on a référencé 0-0 un axe longitudinal de symétrie principale du corps 60 et du bouchon allumeur 100. Cet axe 0-0 est perpendiculaire au fond 61 du corps opposé au bouchon allumeur 100. Il coïncide de préférence avec l'axe de déplacement du percuteur 20. La bague 120 est montée à rotation autour de l'axe O-O. In the appended figures there is referenced 0-0 a longitudinal axis of main symmetry of the body 60 and the igniter cap 100. This axis 0-0 is perpendicular to the bottom 61 of the body opposite the igniter cap 100. It preferably coincides with the axis of movement of striker 20. The ring 120 is rotatably mounted about the axis OO.
La bague 120 est composée essentiellement d'une paroi 121 en forme de disque, perpendiculaire à l'axe 0-0 et centrée sur cet axe 0-0, prolongée par une jupe cylindrique 123 centrée sur l'axe 0-0. La paroi 121 constitue le sommet du bouchon allumeur opposé au corps 60. La jupe 123 entoure la partie du corps 110 qui loge le verrou 30. Ainsi la paroi 121 et la jupe 123 constituent la partie extérieure du bouchon allumeur, directement accessible pour une manipulation. Le déplacement de la bague 120 est donc simple et aisée.  The ring 120 is essentially composed of a wall 121 in the form of a disc, perpendicular to the axis 0-0 and centered on this axis 0-0, extended by a cylindrical skirt 123 centered on the axis 0-0. The wall 121 constitutes the top of the igniter plug opposite the body 60. The skirt 123 surrounds the portion of the body 110 which houses the latch 30. Thus, the wall 121 and the skirt 123 constitute the outer portion of the igniter plug, directly accessible for handling. . The displacement of the ring 120 is therefore simple and easy.
La fenêtre 125 est formée dans la jupe cylindrique 123. Elle s'étend sur toute la hauteur de la jupe 123. La largeur de la fenêtre 125 considérée dans un sens périphérique de la jupe 123, est au moins égale à la largeur de la cuiller 40. Typiquement la fenêtre couvre une ouverture angulaire comprise entre 20 et 45°.  The window 125 is formed in the cylindrical skirt 123. It extends over the entire height of the skirt 123. The width of the window 125 considered in a peripheral direction of the skirt 123 is at least equal to the width of the spoon. 40. Typically the window covers an angular opening of between 20 and 45 °.
La cuiller 40 est montée à rotation autour d'un axe 42 transversal à l'axe 0-0, interne à la bague 120 et proche de la paroi 121. Au repos la cuiller 40 qui s'étend dans une direction longitudinale parallèle à l'axe 0-0, repose contre la face interne de la bague 120, la fenêtre 125 n'étant pas alignée avec la cuiller 40, comme on le voit sur la figure 2.  The spoon 40 is mounted to rotate about an axis 42 transverse to the axis 0-0, internal to the ring 120 and close to the wall 121. At rest the spoon 40 which extends in a longitudinal direction parallel to the 0-0 axis rests against the inner face of the ring 120, the window 125 is not aligned with the spoon 40, as seen in Figure 2.
Le verrou 30 est monté à coulissement dans le corps 110 perpendiculairement à l'axe 0-0 en regard de la cuiller 40. Le verrou 30 est sollicité radialement vers l'extérieur par un ressort 32. Au repos cependant l'extrémité radialement extérieure du verrou 30 repose contre la face interne de la cuiller 40 de sorte que le verrou 30 ne peut être éjecté radialement. Le verrou 30 sollicite ainsi la cuiller 40 en appui contre la face interne de la bague 120.  The latch 30 is slidably mounted in the body 110 perpendicularly to the axis 0-0 facing the spoon 40. The latch 30 is biased radially outwards by a spring 32. At rest, however, the radially outer end of the latch 30 rests against the inner face of the spoon 40 so that the latch 30 can not be ejected radially. The latch 30 thus urges the spoon 40 to bear against the inner face of the ring 120.
Au repos comme on le voit sur les figures 2 et 3, le verrou 30 interfère avec le trajet de déplacement du percuteur 20 de sorte que le percuteur 20 ne peut frapper l'amorce 14.  At rest as seen in Figures 2 and 3, the latch 30 interferes with the path of movement of the striker 20 so that the striker 20 can not hit the primer 14.
Selon le mode de réalisation particulier représenté sur les figures 2 et 3 la partie radialement interne du verrou 30 est placé entre le percuteur 20 et l'amorce 14 de sorte que le verrou interdit clairement tout contact entre le percuteur 20 et l'amorce 14. D'autres réalisations sont cependant possibles comme on le verra par la suite. Par exemple le verrou 30 peut au repos traverser une lumière ménagée dans le percuteur 20 pour limiter le déplacement autorisé au percuteur 20. According to the particular embodiment shown in Figures 2 and 3 the radially inner portion of the latch 30 is placed between the striker 20 and the primer 14 so that the lock prohibits clearly any contact between the striker 20 and the primer 14. Other achievements are however possible as will be seen later. For example, the latch 30 may, at rest, pass through a slot in the striker 20 to limit the movement allowed to the firing pin 20.
Au repos également des moyens à complément de forme sont prévus respectivement sur la cuiller 40 et sur la face interne de la bague 120 pour interdire toute rotation de la bague 120. Ces moyens à complément de forme peuvent faire l'objet de différents modes de réalisation.  At rest also complementary shape means are provided respectively on the spoon 40 and on the inner face of the ring 120 to prevent any rotation of the ring 120. These complementary shape means may be subject to different embodiments. .
Typiquement ces moyens à complément de forme peuvent être formés pour le premier mode de réalisation illustré sur les figures 2 et 3, comme schématisé sur la figure 4, de deux nervures longitudinales 122, 124 en saillie sur la face interne de la jupe 123 de la bague 120 et qui encadrent la cuiller 40. Tant que la cuiller 40 est située entre ces deux nervures 122 et 124, la bague 120 ne peut être entraînée en rotation autour de l'axe 0-0. Il est nécessaire de dégager la cuiller 40 de ces deux nervures 122 et 124, en rapprochant la cuiller 40 de l'axe 0-0 pour autoriser la rotation de la bague 120.  Typically these form-fitting means may be formed for the first embodiment illustrated in FIGS. 2 and 3, as shown diagrammatically in FIG. 4, of two longitudinal ribs 122, 124 projecting on the internal face of the skirt 123 of the 120 and that frame the spoon 40. As the spoon 40 is located between these two ribs 122 and 124, the ring 120 can not be rotated about the axis 0-0. It is necessary to disengage the spoon 40 from these two ribs 122 and 124, bringing the spoon 40 closer to the axis 0-0 to allow rotation of the ring 120.
Alternativement les moyens à complément de forme précités peuvent comprendre au moins une nervure en saillie sur la cuiller et adaptée pour entrer au repos dans une rainure complémentaire en regard formée sur la surface interne de la jupe 123. Pour libérer la bague 120 en rotation il convient de désengager la nervure précitée formée sur la cuiller de la rainure complémentaire en regard formée sur la bague.  Alternatively the abovementioned form-fitting means may comprise at least one rib projecting from the spoon and adapted to come to rest in a complementary facing groove formed on the inner surface of the skirt 123. To release the ring 120 in rotation it is necessary to to disengage the aforementioned rib formed on the spoon of the complementary complementary groove formed on the ring.
Le fonctionnement du bouchon allumeur qui vient d'être décrit en regard des figures 2 à 5 est essentiellement le suivant.  The operation of the igniter plug which has just been described with reference to FIGS. 2 to 5 is essentially as follows.
Une première action de pression sur le levier 40, pour le rapprocher de l'axe 0-0, doit être opérée pour libérer les moyens à complément de forme précités et ainsi libérer la bague 120.  A first pressing action on the lever 40, to bring it closer to the axis 0-0, must be made to release the aforementioned complementary form means and thus release the ring 120.
Puis un deuxième mouvement, de rotation de la bague 120 autour de l'axe 0-0, permet de positionner angulairement la fenêtre 125 en regard de la cuiller ou levier 40 et ainsi de libérer le levier 40, comme illustré sur la figure 3. Then a second movement, rotation of the ring 120 around the axis 0-0, angularly positions the window 125 opposite the spoon or lever 40 and thus release the lever 40, as shown in FIG.
Au lancer la cuiller 40 s'efface comme on le voit sur la figure 5, sous l'effet de la sollicitation du verrou 30 qui s'éjecte, permettant le mouvement du percuteur 20 sous l'effet de son ressort associé 22 présollicité au stockage pour emmagasiner l'énergie nécessaire à l'entraînement du percuteur 20, qui initie l'amorce 14.  When throwing the spoon 40 fades as seen in Figure 5, under the effect of the solicitation of the latch 30 which ejects, allowing the movement of the firing pin 20 under the effect of its associated spring 22 presollicité storage for storing the energy necessary to drive the striker 20, which initiates the primer 14.
La mise en œuvre consécutive de la chaîne pyrotechnique est classique en soit.  The subsequent implementation of the pyrotechnic chain is conventional in itself.
Le bouchon allumeur conforme à ce mode de réalisation de la présente invention exige ainsi deux mouvements distincts. Plus précisément selon le premier mode de réalisation illustré sur les figures 2 et 3, ces deux mouvements comprennent un premier mouvement d'escamotage de la cuiller 40 pour permettre la rotation de la bague 120, qui constitue une première sécurité, opéré par l'action de préhension nominale de la grenade et le deuxième mouvement est une rotation de la bague 120 pour aligner la partie haute de la cuiller 40 avec l'encoche 125 de la bague 120.  The igniter plug according to this embodiment of the present invention thus requires two distinct motions. More precisely according to the first embodiment illustrated in FIGS. 2 and 3, these two movements comprise a first movement of retraction of the spoon 40 to allow rotation of the ring 120, which constitutes a first security, operated by the action grasp the nominal grasp and the second movement is a rotation of the ring 120 to align the upper part of the spoon 40 with the notch 125 of the ring 120.
On va maintenant décrire les modes de réalisation représentés à partir de la figure 6.  Embodiments shown from FIG. 6 will now be described.
Contrairement au premier mode de réalisation illustré sur les figures 2 à 5 qui demande un actionnement/escamotage de la cuiller 40 puis une rotation de la bague 120 pour opérer la mise en oeuvre, les modes de réalisation illustrés sur les figures 6 et suivantes demandent au moins un double actionnement/déplacement de la bague : une translation de la bague 120 selon l'axe 0-0 suivie d'une rotation de la bague 120 autour de l'axe 0-0.  Unlike the first embodiment illustrated in Figures 2 to 5 which requires an actuation / retraction of the spoon 40 and a rotation of the ring 120 to perform the implementation, the embodiments illustrated in Figures 6 and following require the less a double actuation / displacement of the ring: a translation of the ring 120 along the axis 0-0 followed by a rotation of the ring 120 about the axis 0-0.
Par ailleurs selon le quatrième mode de réalisation illustré sur les figures 28 à 31 une sollicitation du levier d'armement 40 dans une étape intermédiaire entre la traction et la rotation de la bague 120, est en outre requise.  Furthermore according to the fourth embodiment illustrated in Figures 28 to 31 a biasing of the cocking lever 40 in an intermediate step between the traction and the rotation of the ring 120 is further required.
Les moyens à complément de forme sont adaptés pour imposer le mouvement composé précité de la bague 120, translation puis rotation, pour autoriser l'alignement de la fenêtre 125 en regard de la cuiller 40. The complementary shape means are adapted to impose the aforementioned compound movement of the ring 120, translation and rotation, to allow the alignment of the window 125 opposite the spoon 40.
De nombreux moyens à complément de forme peuvent être prévus à cet effet.  Many means to complement form can be provided for this purpose.
Selon des modes de réalisation non limitatifs illustrés sur les figures 11 et 12, ces moyens à complément de forme comprennent au moins un pion en saillie sur l'un du corps 110 de bouchon allumeur ou de la bague 120 et une rainure complémentaire formée sur l'autre de la bague 120 ou du corps 110 de bouchon allumeur, laquelle rainure comporte deux segments orthogonaux l'un parallèle à l'axe 0-0 et l'autre transversal à cet axe 0-0.  According to non-limiting embodiments illustrated in FIGS. 11 and 12, these form-fitting means comprise at least one pin protruding from one of the igniter plug body 110 or the ring 120 and a complementary groove formed on the the other of the ring 120 or the igniter plug body 110, which groove comprises two orthogonal segments one parallel to the axis 0-0 and the other transverse to this axis 0-0.
Selon la variante illustrée sur la figure 11, le pion 111 est formé sur le corps 110 et la rainure 126 formée sur la surface interne de la jupe 123 comprend deux segments 127 et 128.  According to the variant illustrated in Figure 11, the pin 111 is formed on the body 110 and the groove 126 formed on the inner surface of the skirt 123 comprises two segments 127 and 128.
Selon la variante illustrée sur la figure 12, le pion 129 est formé en saillie sur la surface interne de la jupe 123 et la rainure 116 formée sur le corps 110 comprend deux segments 117 et 118.  According to the variant illustrated in Figure 12, the pin 129 is projecting on the inner surface of the skirt 123 and the groove 116 formed on the body 110 comprises two segments 117 and 118.
Le fonctionnement du mode de réalisation illustré sur les figures 6 à 10 reste globalement similaire à celui précédemment décrit pour le premier mode de réalisation en regard des figures 2 à 5.  The operation of the embodiment illustrated in FIGS. 6 to 10 generally remains similar to that previously described for the first embodiment with reference to FIGS. 2 to 5.
Ce mode de réalisation correspond à un cas avec énergie embarquée d'activation d'un percuteur 20, c'est-à-dire que le ressort 22 associé au percuteur 20 est pré-sollicité au repos pour emmagasiner l'énergie nécessaire pour assurer la percussion de l'amorce par le percuteur 20 lorsque le verrou 30 est retiré.  This embodiment corresponds to a case with on-board activation energy of a striker 20, that is to say that the spring 22 associated with the striker 20 is pre-stressed at rest to store the energy necessary to ensure the percussion of the primer by the striker 20 when the latch 30 is removed.
Au repos la grenade est dans la position illustrée sur la figure 7. At rest the grenade is in the position shown in Figure 7.
Dans un premier temps la bague 120 doit être entraînée en translation selon l'axe 0-0 en éloignement du corps 60 comme illustré sur la figure 8. In a first step, the ring 120 must be driven in translation along the axis 0-0 away from the body 60 as illustrated in FIG. 8.
Puis dans un deuxième temps, la bague 120 est entraînée en rotation autour de l'axe 0-0 pour aligner la fenêtre 125 avec la cuiller comme illustré sur la figure 9. Comme illustré sur la figure 10 la cuiller 40 est alors éjectée pour autoriser l'activation de la chaîne pyrotechnique si la grenade est lancée à ce stade. Then, in a second step, the ring 120 is rotated around the axis 0-0 to align the window 125 with the spoon as shown in FIG. 9. As illustrated in Figure 10 the spoon 40 is then ejected to allow the activation of the pyrotechnic chain if the grenade is launched at this stage.
On a représenté sur la figure 6 un ressort optionnel 130 centré sur l'axe 0-0 et travaillant à la traction entre le corps 110 et la bague 120, pour solliciter la bague 120 dans sa position de repos initiale plaquée contre le corps 110 du bouchon allumeur pour limiter les risques d'activation accidentelle du bouchon allumeur.  FIG. 6 shows an optional spring 130 centered on the axis 0-0 and working on traction between the body 110 and the ring 120, in order to urge the ring 120 in its initial rest position pressed against the body 110 of the igniter plug to limit the risk of accidental activation of the igniter plug.
On va maintenant décrire le mode de réalisation illustré sur les figures 13 à 26.  The embodiment illustrated in FIGS. 13 to 26 will now be described.
On retrouve dans le mode de réalisation représenté sur les figures 13 à 26, un corps 60 qui loge une charge utile 62 et sur l'embouchure duquel est vissé un bouchon allumeur 100.  Included in the embodiment shown in Figures 13 to 26, a body 60 which houses a payload 62 and on the mouth of which is screwed an igniter plug 100.
Le bouchon allumeur 100 , sans cuiller, comprend un corps 110 qui loge et porte une chaîne pyrotechnique 10 comprenant un détonateur 12, une amorce 14 associée à une composition retard 16, un percuteur 20 associé à un ressort 22, un verrou 30 et un levier d'armement 40, aussi appelé cuiller.  The igniter plug 100, without spoon, comprises a body 110 which houses and carries a pyrotechnic chain 10 comprising a detonator 12, a primer 14 associated with a delay composition 16, a striker 20 associated with a spring 22, a lock 30 and a lever arming 40, also called spoon.
Le bouchon allumeur 100 comprend également une bague 120 qui comporte une fenêtre 125, laquelle bague 120 est mobile entre une position de verrouillage dans laquelle la fenêtre 125 est désalignée par rapport à la cuiller 40 de sorte que celle-ci ne peut être libérée et une position d'activation, obtenu par deux mouvements successifs de translation selon l'axe 0-0 puis de rotation selon cet axe 0-0 dans laquelle la fenêtre 125 est alignée avec la cuiller 40 pour permettre sa libération et de là l'initiation de la chaîne pyrotechnique 10.  The igniter plug 100 also comprises a ring 120 which includes a window 125, which ring 120 is movable between a locking position in which the window 125 is misaligned with respect to the spoon 40 so that it can not be released and a activation position, obtained by two successive movements of translation along the axis 0-0 and rotation along this axis 0-0 in which the window 125 is aligned with the spoon 40 to allow its release and from there the initiation of the pyrotechnic chain 10.
Le double mouvement précité, translation puis rotation, de la bague 120 est contrôlé par des moyens à complément de forme du type illustré sur les figures 11 et 12 ou des moyens équivalents.  The aforesaid double movement, translation and rotation, of the ring 120 is controlled by means of complementary shape of the type illustrated in Figures 11 and 12 or equivalent means.
Cependant ce mode de réalisation illustré sur les figures 13 à 26 correspond à un cas sans énergie embarquée d'activation du percuteur 20. C'est-à-dire que selon le mode de réalisation illustré sur les figures 13 à 26, le ressort 22 associé au percuteur 20 n'est pas sollicité au repos de sorte qu'il ne stocke pas d'énergie susceptible de déplacer le percuteur 20. Dans ce cas le ressort n'est mis sous contrainte qu'au moment de la translation de la bague 120. Cette disposition permet de renforcer encore la sécurité du bouchon allumeur et de la grenade ainsi équipée. However, this embodiment illustrated in FIGS. 13 to 26 corresponds to a case without on-board activation energy of striker 20. That is to say that according to the embodiment illustrated in FIGS. 13 to 26, the spring 22 associated with striker 20 is not requested at rest so that it does not store energy capable of moving the firing pin 20. In this case the spring is stressed only when the ring 120 is translated. This provision makes it possible to further enhance the safety the lighter plug and the grenade thus equipped.
A cette fin le ressort 22, travaillant à la compression, est placé entre une butée 115 formée sur le corps 110 et dirigée vers le centre du corps 60, et une collerette 25 liée à l'extrémité interne du percuteur 20.  To this end the spring 22, working in compression, is placed between an abutment 115 formed on the body 110 and directed towards the center of the body 60, and a flange 25 bonded to the inner end of the striker 20.
Le percuteur 20 est par ailleurs lié par des moyens 200 de liaison provisoire, qui seront décrits plus en détail par la suite, avec la bague 120. Ainsi le ressort 22 est comprimé lorsqu'une traction est opérée sur la bague 120, rapprochant la collerette précitée 25 de la butée précitée 115.  The striker 20 is also connected by means 200 of temporary connection, which will be described in more detail later, with the ring 120. Thus the spring 22 is compressed when a pull is made on the ring 120, bringing the collar closer. aforementioned 25 of the abutment 115 above.
Selon le mode de réalisation représenté sur les figures 13 et suivantes les moyens de liaison provisoire 200 comprennent une griffe expansible 210 liée à l'un de la bague 120 ou du percuteur 20, qui coopère avec une rotule d'attache 29 liée à l'autre du percuteur 20 ou de la bague 120.  According to the embodiment shown in Figures 13 and following the temporary connection means 200 comprise an expandable claw 210 connected to one of the ring 120 or striker 20, which cooperates with a fastening ball joint 29 connected to the other of the striker 20 or the ring 120.
La griffe 210 peut être formée par exemple d'au moins deux mâchoires expansibles équiréparties autour de l'axe 0-0.  The claw 210 may be formed for example of at least two expandable jaws equidistributed around the axis 0-0.
Cette griffe expansible 210 coopère avec un tiroir 220. Le tiroir 220 a pour fonction d'interdire l'expansion de la griffe 210 tant que la cuiller 40 est en place.  This expandable claw 210 cooperates with a drawer 220. The drawer 220 has the function of prohibiting the expansion of the claw 210 as the spoon 40 is in place.
Le tiroir 220 est de préférence placé entre le verrou 30 et le chapeau 121 de la bague 120.  The drawer 220 is preferably placed between the latch 30 and the cap 121 of the ring 120.
De préférence le tiroir 220 est monté à translation radiale dans le corps 110 perpendiculairement à l'axe 0-0 en regard de l'extrémité de la cuiller 40 proche de son axe de rotation 42. Le tiroir 220 est sollicité radialement vers l'extérieur par un ressort 222. Au repos cependant l'extrémité radialement extérieure du tiroir 220 repose contre la face interne de la cuiller 40 de sorte que le tiroir 220 ne peut être éjecté radialement. En revanche le tiroir 220 est éjecté lorsque la cuiller 40 est escamotée. Le percuteur 20 est monté à translation dans un alésage central 119 du corps 110, centré sur l'axe 0-0. Preferably the drawer 220 is mounted in radial translation in the body 110 perpendicular to the axis 0-0 facing the end of the spoon 40 near its axis of rotation 42. The drawer 220 is biased radially outwardly By a spring 222. At rest, however, the radially outer end of the slide 220 rests against the inner face of the spoon 40 so that the slide 220 can not be ejected radially. On the other hand, the drawer 220 is ejected when the spoon 40 is retracted. The striker 20 is mounted in translation in a central bore 119 of the body 110, centered on the axis 0-0.
Le tiroir 220 comporte une lumière longitudinale traversante 224, sécante de l'alésage 119. La largeur de la lumière 224 est de préférence égale au diamètre de l'alésage 119 et égale à la dimension transversale de la griffe 210 en position rétractée, c'est-à-dire la dimension de la griffe 210 serrée sur la rotule 29 considérée transversalement à l'axe 0-0.  The slide 220 has a through longitudinal lumen 224 intersecting the bore 119. The width of the lumen 224 is preferably equal to the diameter of the bore 119 and equal to the transverse dimension of the claw 210 in the retracted position. that is to say the size of the claw 210 tightened on the ball 29 considered transversely to the axis 0-0.
L'on comprendra que ainsi tant que la griffe 210 est logée dans l'alésage 119 ou dans la lumière 224 du tiroir 220, la griffe 210 ne peut s'expanser et par conséquent la rotule 29 reste prisonnière de la griffe 210 de sorte que le percuteur 20 reste lié à la bague 120.  It will be understood that so long as the claw 210 is housed in the bore 119 or in the slot 224 of the drawer 220, the claw 210 can not expand and therefore the ball 29 remains trapped in the claw 210 so that the firing pin 20 remains connected to the ring 120.
En revanche lorsque, dans les conditions que l'on décrira par la suite, le tiroir est éjecté, la griffe 210 n'est plus confinée par la lumière 119 et peut s'expanser, sous l'effet de la sollicitation du ressort 22 associé au percuteur 20, alors contraint.  However, when, under the conditions that will be described later, the drawer is ejected, the claw 210 is no longer confined by the light 119 and can expand, under the effect of the solicitation of the associated spring 22 striker 20, then constrained.
Selon le mode de réalisation particulier représenté sur les figures 13 et suivantes, la griffe expansible 210 est formée sur l'extrémité d'une tige 129 venue de matière sur la face interne de la paroi 121 et centrée sur l'axe 0-0.  According to the particular embodiment shown in Figures 13 and following, the expandable claw 210 is formed on the end of a rod 129 made of material on the inner face of the wall 121 and centered on the axis 0-0.
Le fonctionnement du bouchon allumeur illustré sur les figures 13 à 27 est essentiellement le suivant.  The operation of the igniter plug shown in Figures 13 to 27 is essentially as follows.
Au repos la grenade est dans la position illustrée sur les figures 13, 17 et 23. Le ressort 22 associé au percuteur 20 n'est pas contraint. Le verrou 30 interdit la percussion. La griffe 210 est confinée dans l'alésage 119 et ne peut s'expanser.  At rest the grenade is in the position illustrated in Figures 13, 17 and 23. The spring 22 associated with the striker 20 is not constrained. Lock 30 prohibits percussion. The claw 210 is confined in the bore 119 and can not expand.
Dans un premier temps la bague 120 doit être entraînée en translation selon l'axe 0-0 en éloignement du corps 60 comme illustré sur la figure 14. Comme illustré sur les figures 18 et 24, la griffe 210 qui emprisonne la rotule 29 entraine le percuteur 20. Le ressort 22 associé au percuteur 20 est alors contraint. La griffe 210 est maintenant positionnée dans la lumière 224 du tiroir 220. Elle reste donc confinée. Puis dans un deuxième temps, la bague 120 est entraînée en rotation autour de l'axe 0-0 pour aligner la fenêtre 125 avec la cuiller 40 comme illustré sur la figure 15. Comme illustré sur les figures 19 et 25, la griffe 210 reste positionnée dans la lumière 224 du tiroir 220 et emprisonne toujours la rotule 29. Le verrou 30 assure toujours la sécurité mécanique de la grenade car il interfère avec le trajet du percuteur 20 et empêche celui-ci de frapper l'amorce 14. In a first step, the ring 120 must be driven in translation along the axis 0-0 away from the body 60 as illustrated in FIG. 14. As illustrated in FIGS. 18 and 24, the claw 210 which traps the ball joint 29 causes the striker 20. The spring 22 associated with the striker 20 is then constrained. The claw 210 is now positioned in the lumen 224 of the drawer 220. It therefore remains confined. Then, in a second step, the ring 120 is rotated around the axis 0-0 to align the window 125 with the spoon 40 as illustrated in FIG. 15. As illustrated in FIGS. 19 and 25, the claw 210 remains positioned in the light 224 of the drawer 220 and still traps the ball joint 29. The latch 30 always ensures the mechanical safety of the grenade because it interferes with the path of the striker 20 and prevents it from striking the primer 14.
Comme illustré sur les figures 16, puis 20 et 21, la cuiller 40 est alors éjectée pour autoriser l'activation de la chaîne pyrotechnique si la grenade est lancée à ce stade. Comme illustré sur les figures 20, 21, 22 et 26, le tiroir 220 est alors éjecté. La griffe 210 est finalement positionnée dans le volume logeant précédemment le tiroir 220. Elle peut s'expanser et libérer la rotule 29.  As illustrated in Figures 16, 20 and 21, the spoon 40 is then ejected to allow the activation of the pyrotechnic chain if the grenade is launched at this stage. As illustrated in Figures 20, 21, 22 and 26, the drawer 220 is then ejected. The claw 210 is finally positioned in the volume previously housing the drawer 220. It can expand and release the ball 29.
Sous l'effet du ressort 22 précédemment contraint lors de la traction de la bague 120, le percuteur 20, libéré par la séparation de la rotule 29 et de la griffe 210, peut venir frapper l'amorce 14 pour initier la chaîne pyrotechnique.  Under the effect of the spring 22 previously constrained during the pulling of the ring 120, the striker 20, released by the separation of the ball 29 and the claw 210, can strike the primer 14 to initiate the pyrotechnic chain.
Le mode de réalisation illustré schématiquement sur la figure 27 diffère uniquement du mode de réalisation précédemment décrit en regard des figures 13 à 26 par le fait que selon les figures 13 à 26 le verrou 30 est engagé dans une lumière longitudinale traversante du percuteur, l'extrémité percutante du percuteur 20 étant placée en regard de l'amorce 14, soit du côté du verrou 30 situé vers l'amorce 14, de sorte que le percuteur 20 s'étend au repos de part et d'autre du verrou 30, alors que selon le mode de réalisation illustré sur la figure 27, au repos le verrou 30 est intercalé entre le percuteur 20 et l'amorce 14 de sorte que l'extrémité percutante du percuteur 20 est placé en appui contre le verrou 30.  The embodiment illustrated schematically in FIG. 27 differs only from the embodiment previously described with reference to FIGS. 13 to 26 in that, according to FIGS. 13 to 26, the latch 30 is engaged in a longitudinal through-hole of the firing pin. the striking end of the striker 20 being placed facing the primer 14, or the side of the latch 30 located towards the primer 14, so that the striker 20 extends at rest on either side of the latch 30, then that according to the embodiment illustrated in Figure 27, at rest the latch 30 is interposed between the striker 20 and the primer 14 so that the percussion end of the striker 20 is placed in abutment against the latch 30.
L'on observera que les moyens conformes à l'invention, précédemment décrits offrent les avantages d'imposer une préhension de la grenade de manière sécurisée car imposant un maintien de la cuiller 40 dans la paume de la main, sans complexifier ni allonger la mise en œuvre. L'on notera également que l'invention offre une totale réversibilité tant que la cuiller n'est pas relâchée. En effet la bague 120 peut être déplacée en sens inverse et être ramenée en position de sécurité de stockage tant que la cuiller 40 n'est pas éjectée. It will be observed that the means according to the invention described above offer the advantages of imposing a gripping of the grenade in a secure manner because imposing a maintenance of the spoon 40 in the palm of the hand, without complicating or lengthening the setting implemented. It should also be noted that the invention offers total reversibility as long as the spoon is not relaxed. Indeed the ring 120 can be moved in the opposite direction and be brought back to the storage security position as the spoon 40 is not ejected.
On a illustré sur les figures 28 à 31 une variante de réalisation du deuxième mode de réalisation illustré sur les figures 7 à 11 ou du troisième mode de réalisation illustré sur les figures 14 à 23, qui constitue un quatrième mode de réalisation conforme à la présente invention et qui se caractérise par la présence de moyens à complément de forme prévus respectivement sur la bague 120 et sur la cuiller 40 pour imposer que le levier ou cuiller 40 soit escamoté dans une étape intermédiaire entre une première étape au cours de laquelle la bague 120 est translatée par traction et une dernière étape de manipulation au cours de laquelle la bague 120 doit être tournée pour aligner sa fenêtre 125 sur le levier 40.  FIGS. 28 to 31 illustrate an alternative embodiment of the second embodiment illustrated in FIGS. 7 to 11 or the third embodiment illustrated in FIGS. 14 to 23, which constitutes a fourth embodiment in accordance with the present invention. invention and which is characterized by the presence of complementary shape means respectively provided on the ring 120 and the spoon 40 to require that the lever or spoon 40 is retracted in an intermediate step between a first step in which the ring 120 is translated by traction and a last manipulation step during which the ring 120 must be turned to align its window 125 on the lever 40.
Typiquement comme illustré sur la figure 28, les moyens à complément de forme précités peuvent comprendre une rainure 1200 formée sur la surface interne de la jupe 123 et complémentaire de la cuiller 40 ou d'une nervure en saillie sur la cuiller 40 et adaptée pour recevoir celle-ci au repos. Pour libérer la bague 120 en rotation il convient de désengager la cuiller 40 de la rainure complémentaire 1200 formée en regard sur la baguel20.  Typically as illustrated in FIG. 28, the abovementioned form-fitting means may comprise a groove 1200 formed on the inner surface of the skirt 123 and complementary to the spoon 40 or of a rib projecting from the spoon 40 and adapted to receive this one at rest. To release the ring 120 in rotation it is necessary to disengage the spoon 40 from the complementary groove 1200 formed opposite the baguel20.
Alternativement ces moyens à complément de forme peuvent être formés comme schématisé sur la figure 4, de deux nervures longitudinales 122, 124 en saillie sur la face interne de la jupe 123 de la bague 120 et qui encadrent la cuiller 40. Tant que la cuiller 40 est située entre ces deux nervures 122 et 124, la bague 120 ne peut être entraînée en rotation autour de l'axe 0-0. Il est nécessaire de dégager la cuiller 40 de ces deux nervures 122 et 124, en rapprochant la cuiller 40 de l'axe 0-0 pour autoriser la rotation de la bague 120.  Alternatively, these complementary shape means can be formed as shown diagrammatically in FIG. 4, with two longitudinal ribs 122, 124 projecting on the inner face of the skirt 123 of the ring 120 and which frame the spoon 40. As long as the spoon 40 is located between these two ribs 122 and 124, the ring 120 can not be rotated about the axis 0-0. It is necessary to disengage the spoon 40 from these two ribs 122 and 124, bringing the spoon 40 closer to the axis 0-0 to allow rotation of the ring 120.
La structure et le fonctionnement de ce quatrième mode de réalisation restent par ailleurs globalement identiques à ceux décrits précédemment pour le deuxième et le troisième modes de réalisation. Bien entendu la présente invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits, mais s'étend à toutes variantes conformes à son esprit. The structure and operation of this fourth embodiment are moreover generally identical to those described above for the second and third embodiments. Naturally, the present invention is not limited to the embodiments that have just been described, but extends to all variants that conform to its spirit.
Par exemple selon une variante de réalisation, le bouchon allumeur peut en option comporter une rupture initiale de chaîne pyrotechnique formée d'une séparation physique entre les moyens explosifs primaires et les moyens explosifs secondaires, laquelle rupture de chaîne pyrotechnique est neutralisée pour supprimer la séparation physique entre les moyens explosifs primaires et les moyens explosifs secondaires lors de l'armement.  For example according to an alternative embodiment, the igniter plug may optionally include an initial pyrotechnic chain rupture formed by a physical separation between the primary explosive means and the secondary explosive means, which pyrotechnic chain break is neutralized to eliminate the physical separation between the primary explosive means and the secondary explosive means during arming.
Par ailleurs le percuteur précédemment décrit peut être remplacé par un percuteur rotatif.  Furthermore, the striker described above can be replaced by a rotary striker.
Le cas échéant le bouchon allumeur peut être directement intégré à la grenade et non pas formé d'un composant séparé adapté pour être rajouté sur une grenade.  If necessary the igniter cap can be directly integrated into the grenade and not formed of a separate component adapted to be added to a grenade.
L'on observera que le bouchon allumeur conforme à la présente invention peut être mis en œuvre par rotation de la bague 120 dans un sens ou dans le sens inverse. Le bouchon allumeur conforme à la présente invention convient donc parfaitement à tout utilisateur, qu'il soit droitier ou gaucher.  It will be observed that the igniter plug according to the present invention can be implemented by rotating the ring 120 in a direction or in the opposite direction. The ignition plug according to the present invention is therefore perfectly suitable for any user, whether right-handed or left-handed.
Le bouchon allumeur présente de ce fait un caractère ambidextre.  The igniter plug thus has an ambidextrous character.
Ce caractère ambidextre peut être particulièrement réalisé si au repos la fenêtre 125 est disposée à 180° du levier 40. Dans ce cas en effet l'angle de rotation de la bague 120 pour porter la fenêtre 125 en regard du levier 140 est identique et égal à 180° quel que soit le sens de rotation de la bague 120.  This ambidextrous character can be particularly achieved if at rest the window 125 is disposed at 180 ° of the lever 40. In this case indeed the angle of rotation of the ring 120 to bring the window 125 facing the lever 140 is identical and equal at 180 ° regardless of the direction of rotation of the ring 120.
En variante pour assurer un caractère parfaitement ambidextre tout en limitant l'angle de rotation requis pour la bague 120, on peut prévoir au moins deux fenêtres 125 symétriques par rapport à la position du levier 40 au repos.  Alternatively to ensure a perfectly ambidextrous character while limiting the angle of rotation required for the ring 120, can be provided at least two windows 125 symmetrical with respect to the position of the lever 40 at rest.

Claims

REVENDICATIONS
1. Bouchon allumeur, comprenant une cuiller (40) , une chaîne pyrotechnique (10) et un percuteur (20) adapté pour initier la chaîne pyrotechnique (10) après libération de la cuiller (40), caractérisé par le fait que le bouchon allumeur comprend en outre une bague (120) comportant au moins une fenêtre (125) et mobile entre une position de verrouillage dans laquelle la fenêtre (125) est désalignée par rapport à la cuiller (40) de sorte que celle-ci ne peut être libérée et une position d'activation dans laquelle la fenêtre (125) est alignée avec la cuiller pour permettre sa libération. 1. Ignition cap comprising a spoon (40), a pyrotechnic chain (10) and a striker (20) adapted to initiate the pyrotechnic chain (10) after releasing the spoon (40), characterized in that the igniter plug further comprises a ring (120) having at least one window (125) and movable between a locking position in which the window (125) is misaligned with respect to the spoon (40) so that it can not be released and an activation position in which the window (125) is aligned with the spoon to allow its release.
2. Bouchon selon la revendication 1, caractérisé en ce qu'il comprend des moyens qui imposent au moins deux opérations ou déplacements distincts pour permettre le déplacement de la bague (120) entre sa position de verrouillage et sa position d'activation.  2. Stopper according to claim 1, characterized in that it comprises means which impose at least two distinct operations or displacements to allow movement of the ring (120) between its locking position and its activation position.
3. Bouchon selon l'une des revendications 1 ou 2, caractérisé en ce qu'il comprend des moyens qui imposent un appui sur la cuiller (40) à un moment de la phase d'armement, pour assurer la séquence de mise à feu.  3. Stopper according to one of claims 1 or 2, characterized in that it comprises means which impose a support on the spoon (40) at a time of the arming phase, to ensure the firing sequence .
4. Bouchon selon l'une des revendications 1 à 3, caractérisé en ce que la bague (120) est montée à rotation autour de l'axe principal (0-0) du bouchon allumeur.  4. Stopper according to one of claims 1 to 3, characterized in that the ring (120) is rotatably mounted about the main axis (0-0) of the igniter cap.
5. Bouchon selon l'une des revendications 1 à 4, caractérisé en ce que la bague (120) est composée d'une paroi (121) en forme de disque, prolongée par une jupe cylindrique (123) comportant ladite fenêtre (125), la jupe (123) constituant la partie extérieure du bouchon allumeur, directement accessible pour une manipulation.  5. Stopper according to one of claims 1 to 4, characterized in that the ring (120) is composed of a wall (121) disc-shaped, extended by a cylindrical skirt (123) comprising said window (125) , the skirt (123) constituting the outer part of the igniter plug, directly accessible for handling.
6. Bouchon selon l'une des revendications 1 à 5, caractérisé en ce que la fenêtre (125) a une largeur au moins égale à la largeur de la cuiller (40).  6. Stopper according to one of claims 1 to 5, characterized in that the window (125) has a width at least equal to the width of the spoon (40).
7. Bouchon selon l'une des revendications 1 à 6, caractérisé en ce qu'il comprend un verrou (30) monté à coulissement dans le bouchon, limité initialement à déplacement par la cuiller (40) et qui interfère avec le trajet de déplacement du percuteur (20) de sorte que le percuteur (20) ne peut initialement frapper une amorce (14) de la chaîne pyrotechnique. 7. Stopper according to one of claims 1 to 6, characterized in that it comprises a latch (30) slidably mounted in the stopper, initially limited to displacement by the spoon (40) and which interferes with the movement path of the firing pin (20) so that the striker (20) can not initially strike a primer (14) of the pyrotechnic chain.
8. Bouchon selon l'une des revendications 1 à 7, caractérisé en ce qu'il comprend des moyens à complément de forme prévus respectivement sur la cuiller (40) ou un corps de bouchon et sur la face interne de la bague (120) pour interdire toute rotation initiale de la bague (120).  8. Stopper according to one of claims 1 to 7, characterized in that it comprises complementary shape means respectively provided on the spoon (40) or a cap body and on the inner face of the ring (120). to prevent any initial rotation of the ring (120).
9. Bouchon selon la revendication 8, caractérisé en ce que les moyens à complément de forme comprennent des moyens de type nervures/rainures complémentaires prévus respectivement sur la cuiller (40) ou un corps de bouchon et sur la bague (120), par exemple sous forme de deux nervures longitudinales (122, 124) en saillie sur la face interne de la jupe (123) de la bague (120) et qui encadrent la cuiller (40) ou sous forme d'au moins une nervure en saillie sur la cuiller (40) et adaptée pour entrer au repos dans une rainure complémentaire en regard formée sur la surface interne d'une jupe (123) de la bague (120).  9. Stopper according to claim 8, characterized in that the form-fitting means comprise complementary rib / groove means respectively provided on the spoon (40) or a plug body and on the ring (120), for example in the form of two longitudinal ribs (122, 124) projecting from the inner face of the skirt (123) of the ring (120) and which frame the spoon (40) or in the form of at least one rib projecting from the spoon (40) and adapted to enter at rest in a complimentary groove formed on the inner surface of a skirt (123) of the ring (120).
10. Bouchon selon la revendication 8, caractérisé en ce que les moyens à complément de forme comprennent des moyens adaptés pour imposer un mouvement composé de la bague (120), translation puis rotation, pour autoriser l'alignement de la fenêtre (125) en regard de la cuiller (40).  10. Stopper according to claim 8, characterized in that the complementary shape means comprise means adapted to impose a movement composed of the ring (120), translation and rotation, to allow the alignment of the window (125) in look at the spoon (40).
11. Bouchon selon la revendication 10, caractérisé en ce que les moyens à complément de forme comprennent en outre des moyens adaptés pour imposer un appui sur la cuiller (40) après le mouvement de translation de la cuiller (40) et le mouvement de rotation de la cuiller (40), pour autoriser l'alignement de la fenêtre (125) en regard de la cuiller (40).  11. Stopper according to claim 10, characterized in that the complementary shape means further comprises means adapted to impose a bearing on the spoon (40) after the translational movement of the spoon (40) and the rotational movement. the spoon (40), to allow the alignment of the window (125) facing the spoon (40).
12. Bouchon selon l'une des revendications 10 ou 11, caractérisé en ce que les moyens à complément de forme comprennent au moins un pion en saillie sur l'un du bouchon allumeur ou de la bague (120) et une rainure complémentaire formée sur l'autre de la bague (120) ou du bouchon allumeur, laquelle rainure comporte deux segments orthogonaux l'un parallèle à l'axe 0-0 et l'autre transversal à cet axe O- O, par exemple 12. Stopper according to one of claims 10 or 11, characterized in that the complementary shape means comprise at least one peg projecting from one of the igniter plug or the ring (120) and a complementary groove formed on the other of the ring (120) or the igniter plug, which groove comprises two segments orthogonal one parallel to the axis 0-0 and the other transverse to this axis O-O, for example
un pion (111) formé sur le bouchon et une rainure (126) formée sur la surface interne d'une jupe (123) de la bague, comprend deux segments (127, 128) ou un pion (129) formé en saillie sur la surface interne de la jupe (123) et une rainure (116) formée sur le bouchon et qui comprend deux segments (117, 118). a pin (111) formed on the plug and a groove (126) formed on the inner surface of a skirt (123) of the ring, comprises two segments (127, 128) or a pin (129) projecting from the inner surface of the skirt (123) and a groove (116) formed on the cap and which comprises two segments (117, 118).
13. Bouchon selon l'une des revendications 1 à 12, caractérisé en ce qu'il comprend en outre un tiroir (220) monté à translation radiale dans un corps (110) du bouchon, en regard de la cuiller (40) et qui comporte des moyens (224) assurant une liaison du percuteur (20) avec la bague (120) tant que la cuiller (40) n'est pas éjectée.  13. Stopper according to one of claims 1 to 12, characterized in that it further comprises a slide (220) mounted in radial translation in a body (110) of the plug, facing the spoon (40) and which comprises means (224) ensuring a connection of the firing pin (20) with the ring (120) as long as the spoon (40) is not ejected.
14. Bouchon selon l'une des revendications 1 à 13, caractérisé en ce que le percuteur (20) est lié par des moyens (200) de liaison provisoire, avec la bague (120).  14. Stopper according to one of claims 1 to 13, characterized in that the striker (20) is connected by means (200) of temporary connection with the ring (120).
15. Bouchon selon la revendication 14, caractérisé en ce que les moyens de liaison provisoire (200) comprennent une griffe expansible (210) liée à l'un de la bague (120) ou du percuteur (20), qui coopère avec une rotule d'attache (29) liée à l'autre du percuteur (20) ou de la bague (120).  15. Stopper according to claim 14, characterized in that the temporary connection means (200) comprise an expandable claw (210) connected to one of the ring (120) or striker (20), which cooperates with a ball joint fastener (29) connected to the other of the striker (20) or the ring (120).
16. Bouchon selon la revendication 15, caractérisé en ce que la griffe (210) est formée par au moins deux mâchoires expansibles équiréparties autour de l'axe (0-0) de translation du percuteur (20).  16. Stopper according to claim 15, characterized in that the claw (210) is formed by at least two expandable jaws equidistributed around the axis (0-0) of translation of the firing pin (20).
17. Bouchon selon les revendications 13 et 15 prises en combinaison, caractérisé en ce que le tiroir (220) comporte une lumière 17. Stopper according to claims 13 and 15 taken in combination, characterized in that the drawer (220) comprises a light
(224) dont la largeur est égale à la dimension transversale de la griffe (210) en position rétractée. (224) whose width is equal to the transverse dimension of the claw (210) in the retracted position.
18. Bouchon selon l'une des revendications 1 à 17, caractérisé en ce qu'il comprend des moyens de guidage tels que la cuiller (40) doit être escamotée dans un premier temps, puis la bague (120) doit être tournée pour aligner sa fenêtre (125) sur la cuiller (40) dans un second temps. 18. Stopper according to one of claims 1 to 17, characterized in that it comprises guide means such that the spoon (40) must be retracted at first, then the ring (120) must be rotated to align its window (125) on the spoon (40) in a second time.
19. Bouchon selon l'une des revendications 1 à 17, caractérisé en ce qu'il comprend des moyens de guidage tels que la bague (120) doit être translatée par traction dans un premier temps, puis être tournée dans un deuxième temps pour aligner sa fenêtre (125) sur la cuiller (40). 19. Stopper according to one of claims 1 to 17, characterized in that it comprises guide means such that the ring (120) must be translated by traction at first, then be turned in a second time to align its window (125) on the spoon (40).
20. Bouchon selon l'une des revendications 1 à 17 et 19, caractérisé en ce qu'il comprend des moyens de guidage tels que la bague (120) doit être translatée par traction dans un premier temps, puis la cuiller (40) doit être escamotée dans un deuxième temps et enfin dans un troisième temps la bague (120) doit être tournée pour aligner sa fenêtre (125) sur la cuiller (40).  20. Stopper according to one of claims 1 to 17 and 19, characterized in that it comprises guide means such that the ring (120) must be translated by pulling at first, then the spoon (40) must to be retracted in a second time and finally in a third time the ring (120) must be turned to align its window (125) on the spoon (40).
21. Bouchon selon l'une des revendications 1 à 20, caractérisé en ce qu'il comprend un ressort (22) associé au percuteur (20) et que le ressort (22) est sollicité lors du déplacement en translation de la bague (120) de sorte que le ressort (22) stocke lors de ce déplacement l'énergie nécessaire à la mise en œuvre du percuteur (20).  21. Stopper according to one of claims 1 to 20, characterized in that it comprises a spring (22) associated with the firing pin (20) and that the spring (22) is biased during the translational movement of the ring (120). ) so that the spring (22) stores during this movement the energy required for the implementation of the striker (20).
22. Bouchon selon l'une des revendications 1 à 21, caractérisé en ce que la fenêtre (125) est disposée au repos à 180° de la cuiller (40).  22. Stopper according to one of claims 1 to 21, characterized in that the window (125) is disposed at 180 ° rest of the spoon (40).
23. Bouchon selon l'une des revendications 1 à 21, caractérisé en ce qu'il comprend au moins deux fenêtres (125) symétriques par rapport à la position de la cuiller (40) au repos.  23. Stopper according to one of claims 1 to 21, characterized in that it comprises at least two windows (125) symmetrical with respect to the position of the spoon (40) at rest.
24. Grenade équipée d'un bouchon allumeur conforme à l'une des revendications 1 à 23.  24. Grenade equipped with an igniter plug according to one of claims 1 to 23.
EP16730438.5A 2015-06-22 2016-06-22 Pinless grenade igniter and grenade thus equipped Active EP3311102B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20190947A RS59083B1 (en) 2015-06-22 2016-06-22 Pinless grenade igniter and grenade thus equipped

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1555729A FR3037644B1 (en) 2015-06-22 2015-06-22 IGNITER CAP WITHOUT PIN FOR GRANADA AND ANSI EQUIPPED GRENADA
PCT/EP2016/064477 WO2016207250A1 (en) 2015-06-22 2016-06-22 Pinless grenade igniter and grenade thus equipped

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EP3311102A1 true EP3311102A1 (en) 2018-04-25
EP3311102B1 EP3311102B1 (en) 2019-05-08

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KR (1) KR102571507B1 (en)
ES (1) ES2732472T3 (en)
FR (1) FR3037644B1 (en)
RS (1) RS59083B1 (en)
SA (1) SA517390575B1 (en)
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IL249976B (en) 2017-01-08 2022-02-01 Israel Aerospace Ind Ltd Safety device
DE102017003971A1 (en) * 2017-04-25 2018-10-25 Drew Marine Signal and Safety Germany GmbH Grenade and method for operating the same

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US1521996A (en) 1923-09-05 1925-01-06 Ciano Arturo Hand-thrown bomb
US2331198A (en) * 1941-10-03 1943-10-05 Klang Piao Hand grenade
BE511057A (en) 1952-01-29
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
US3718090A (en) * 1970-08-04 1973-02-27 Us Army Integral twist top for mechanically actuated munition containers
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
ES2067355B1 (en) 1992-03-23 1998-05-01 Garcia Garcia Jose TOTAL ACTION HAND GRENADE.
FR2807511B1 (en) 2000-04-06 2003-01-24 Lacroix Soc E LOCK FOR IGNITION PLUG LEVER
FR2807510B1 (en) 2000-04-06 2002-06-14 Lacroix Soc E IMPROVED SAFETY IGNITION PLUG
FR2825462B1 (en) 2001-05-30 2003-09-26 Dixi Microtechniques IGNITION PLUG FOR HAND GRENADE
FR2864220B1 (en) 2003-12-23 2007-11-16 Dixi Microtechniques IGNITION CAP FOR HAND GRENADE AND HAND GRANADE EQUIPPED WITH SUCH A PLUG
KR101543615B1 (en) 2010-12-12 2015-08-11 이스라엘 밀리터리 인더스트리즈 리미티드 Grenade mechanism
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US8561540B1 (en) 2011-12-29 2013-10-22 The United States Of America As Represented By The Secretary Of The Army Rotating thumb safety fuze for a hand grenade and related methods of operation and assembly

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WO2016207250A1 (en) 2016-12-29
KR20180027523A (en) 2018-03-14
FR3037644B1 (en) 2017-07-21
SA517390575B1 (en) 2021-12-07
FR3037644A1 (en) 2016-12-23
KR102571507B1 (en) 2023-08-28
EP3311102B1 (en) 2019-05-08
ES2732472T3 (en) 2019-11-22
SG11201710633VA (en) 2018-01-30
RS59083B1 (en) 2019-09-30

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