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EP0217229A1 - Aufschlagschalter für Zünder - Google Patents

Aufschlagschalter für Zünder Download PDF

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Publication number
EP0217229A1
EP0217229A1 EP86112813A EP86112813A EP0217229A1 EP 0217229 A1 EP0217229 A1 EP 0217229A1 EP 86112813 A EP86112813 A EP 86112813A EP 86112813 A EP86112813 A EP 86112813A EP 0217229 A1 EP0217229 A1 EP 0217229A1
Authority
EP
European Patent Office
Prior art keywords
contact
impact
housing
impact switch
switch according
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.)
Ceased
Application number
EP86112813A
Other languages
German (de)
English (en)
French (fr)
Inventor
Horst Dinger
Horst Moosmann
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.)
Gebrueder Junghans GmbH
Original Assignee
Gebrueder Junghans GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gebrueder Junghans GmbH filed Critical Gebrueder Junghans GmbH
Publication of EP0217229A1 publication Critical patent/EP0217229A1/de
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
    • F42C1/04—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact
    • F42C1/06—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze operating by inertia of members on impact for any direction of impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes

Definitions

  • the invention relates to an impact switch for detonators of projectiles, in particular rocket projectiles, with a housing and electrical connections to electronics for triggering the ignition of explosives.
  • this object is achieved in that a body is loosely inserted in the housing of the impact switch in a conical recess which is central in the longitudinal axis of the housing and which acts against electrical contact when moving along the conical inclined surface of the recess after the detonator has opened.
  • the body in the preferred embodiment of the invention can be a ball. This ball can act against a bolt which rests against the ball in a central channel with the support of a compression spring and which is in contact with an electrical contact against the force of the compression spring during axial movement.
  • This impact switch causes the explosive charge to ignite at projectile impact angles of 10 ° to 90 °.
  • the inserted ball presses the spring-loaded bolt directly against an electrical contact.
  • the loosely inserted ball on the incline of the conical recess is also moved in the direction of the central bolt, which in turn contacts the contact.
  • the second electrical tap is made via the housing of the impact switch.
  • the spherical body on the opposite side of the conical recess can be acted upon by a bell-shaped contact spring which consists of a plurality of contact arms and which is central and electrical contacted mounting screw and acts when moving the body along the conical inclined surface after the detonator hits with at least one contact arm against a contact hood, which is used in electrical insulation in the housing and is connected to an electrical contact to the ignition electronics.
  • the mounting screw can be fastened in the housing cover and, via its head protruding inside the housing, both the contact spring and, with intermediate insulation, carry the contact hood and the electrical contacts.
  • the conical recess can also merge opposite to the contact spring into a substantially cylindrical recess, in which a ground bolt is loosely inserted, which is effective against the body in the direction of operation of the impact switch, the cylindrical recess being closed at the end.
  • the contact spring can have a total of six circumferentially distributed contact arms.
  • the spherical body always acts upon impact of the detonator on a target only against contact arms of a contact spring, which in turn then contact a contact hood and close the circuit via this and a connected contact element.
  • the contact arms of the hood-shaped contact spring have the advantage that they can be bent up with relative ease by the spherical body and bear in contact with the contact hood. Since the spherical body must spread out all the contact arms provided in the event of a frontal impact, a mass body is used to support its force acting axially in the direction of the longitudinal axis of the housing, which presses against the ball in the direction of the contact spring.
  • the impact switch 15 consists essentially of a housing 8 with a cover 13 and a base 9.
  • the housing there is an overall cylindrical recess 14 in the upper area, in the bottom surface of which there is an essentially conical recess 16 with correspondingly conical bevels 2 .
  • This conical recess 16 in turn opens centrally in the longitudinal axis 17 of the housing 8 into an essentially cylindrical recess 18, in which a mass body 7 of, for example, cylindrical shape is loosely inserted.
  • the recess 18 is closed at the bottom by the bottom 9.
  • a body in spherical shape 1 is loosely inserted into the conical recess 16 and is in point contact with the mass body 7.
  • a mounting screw 5 is located centrally in the longitudinal axis 17 of the housing above the ball and opposite to the mass body 7 in the housing cover 13, the head 19 of the mounting screw pointing towards the body 1 inside the housing.
  • the mounting screw 5 is fastened on the outside of the housing cover 13 by a plastic nut 11.
  • the other elements of the impact switch 15 namely the contact spring 3 provided with contact arms 20, an insulating hood 12 with a neck 21 through to the plastic nut, a contact hood 4, a contact element in the form of a soldering lug 6 and an insulating part 10, which up to extends under the housing cover 13 and fills the interior of the housing upwards.
  • the contact spring 3 consists of a total of 6 circumferentially distributed contact arms 20, which all rest on the outer surface of the spherical body 1 in the rest position of the impact switch.
  • the spherical body 1 With a frontal impact of the detonator, the spherical body 1 is moved forward in the impact switch 15 in the direction of the arrow A.
  • the contact arms 20 of the contact spring 3 are spread apart and brought into contact with the inside of the bell-shaped contact hood 4. This spreading of the contact arms 20 is supported by the mass body 7, which also moves forward when the detonator strikes in the direction of the spherical body 1.
  • the mass body 7 which also moves forward when the detonator strikes in the direction of the spherical body 1.
  • a connection to the contact element 6 is established.
  • the current ice is thus closed and the pulse is conducted via line 22 and also via line 23 to the electronics of the detonator.
  • the support of the spherical body 1 by the kinetic energy of the additional body 7 essentially depends on the angle of impact of the detonator, so that effective support is possible even at angles deviating from the frontal impact.
  • the spherical body 1 is pressed against the contact spring 3 via the turned-on conical bevel 2.
  • at least one contact arm 20 of the contact spring 3 is now pressed against the contact hood 4 and thus in turn a circuit is closed.
  • the electrical tap is performed once jber the mounting screw 5, which is connected to the contact spring, and on the other via the contact element in the form of a soldering lug 6 which with be the contact ha J 4 is electrically connected. At the mentioned angles of impact, the additional mast of the body 7 is not yet effective.
  • Fig. 3 shows a simplified embodiment of the impact switch 15 according to the invention, which is formed in this example from a two-part housing 24 and 25.
  • a conical recess is again provided centrally in the longitudinal axis 17 of the housing.
  • a spherical body 1 is again loosely inserted.
  • a cylindrical channel 27 which opens into an end bore 28.
  • a bolt 29 is inserted, which is under the action of a compression spring 30.
  • the bolt 29 also has a tip 31 at its upper end, which protrudes from the upper part of the housing 25 and is provided for making contact with the contact element 32 above the housing part 25.
  • the contact element 32 is connected with the interposing of an insulating piece 33 by a screw 34 to the housing part 25 and has an electrical connection 35 which, like the contact 36 connected to the housing part 25, is connected to electronics (not shown here) for triggering the ignition of explosives .
  • the functioning of the exemplary embodiment of an impact igniter shown here is similar to the impact switch shown in FIG. 1.
  • the spherical body 1 moves in the direction against the bolt 29 and pushes it against the force of the spring 30 with its tip 31 against the contact element 32, as a result of which the circuit is closed.
  • the spherical body 1 When the detonator strikes at an angle of up to 10 °, the spherical body 1 is moved on the conical bevel 2 both laterally and simultaneously in the direction of the arrow A. The spherical body 1 in this case also presses against the bolt 29 and, as described above, again makes contact with the contact element 32, j in order to thus close the circuit to the electronics of the detonator in order to trigger the ignition of explosives.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Tumbler Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Air Bags (AREA)
EP86112813A 1985-09-26 1986-09-17 Aufschlagschalter für Zünder Ceased EP0217229A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853534309 DE3534309A1 (de) 1985-09-26 1985-09-26 Aufschlagschalter fuer zuender
DE3534309 1985-09-26

Publications (1)

Publication Number Publication Date
EP0217229A1 true EP0217229A1 (de) 1987-04-08

Family

ID=6281992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112813A Ceased EP0217229A1 (de) 1985-09-26 1986-09-17 Aufschlagschalter für Zünder

Country Status (5)

Country Link
US (1) US4715281A (no)
EP (1) EP0217229A1 (no)
DE (1) DE3534309A1 (no)
DK (1) DK460986A (no)
NO (1) NO161345C (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105619453A (zh) * 2016-03-28 2016-06-01 李伦锦 碰撞保护装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012740A (en) * 1990-01-05 1991-05-07 The United States Of America As Represented By The Secretary Of The Navy Electrorheologically damped impact system
US7320286B2 (en) * 2004-10-18 2008-01-22 Aai Corporation Setback switch for safe and arm
US7629545B1 (en) 2005-06-02 2009-12-08 Asner Jerome L Impact-activated trigger with omni-directional sensor
US9528809B1 (en) * 2015-09-01 2016-12-27 The United States Of America As Represented By The Secretary Of The Army Bridgewire shunt setback switch
GB2603980A (en) * 2020-08-12 2022-08-24 Sleep Env Innovations Llc Blank firing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE367473C (de) * 1917-10-04 1923-01-23 Salomon Lebensart Aufschlagzuender
FR1056492A (no) * 1954-02-26
US3368044A (en) * 1965-01-13 1968-02-06 Graviner Colnbrook Ltd Inertia responsive devices
US3484571A (en) * 1968-03-15 1969-12-16 Us Navy Inertia switch
FR2026346A1 (no) * 1968-12-17 1970-09-18 Sound Diffusion Ltd
DE2228683A1 (de) * 1972-06-13 1973-12-20 Artur Foehl Beschleunigungs- und verzoegerungsabhaengige, elektrische schaltvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952208A (en) * 1956-03-15 1960-09-13 Wagoner Junior Billy Detonation circuit for multiple sensitivity fuze
US3054870A (en) * 1958-06-09 1962-09-18 Wagoner Junior Billy Variable sensitivity inertia switch
US3158705A (en) * 1962-12-04 1964-11-24 Robert W Bliss Combination graze and impact switch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1056492A (no) * 1954-02-26
DE367473C (de) * 1917-10-04 1923-01-23 Salomon Lebensart Aufschlagzuender
US3368044A (en) * 1965-01-13 1968-02-06 Graviner Colnbrook Ltd Inertia responsive devices
US3484571A (en) * 1968-03-15 1969-12-16 Us Navy Inertia switch
FR2026346A1 (no) * 1968-12-17 1970-09-18 Sound Diffusion Ltd
DE2228683A1 (de) * 1972-06-13 1973-12-20 Artur Foehl Beschleunigungs- und verzoegerungsabhaengige, elektrische schaltvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105619453A (zh) * 2016-03-28 2016-06-01 李伦锦 碰撞保护装置
CN105619453B (zh) * 2016-03-28 2017-07-07 浙江德昱汽车零部件有限公司 碰撞保护装置

Also Published As

Publication number Publication date
NO863219L (no) 1987-03-27
DK460986D0 (da) 1986-09-26
US4715281A (en) 1987-12-29
NO161345B (no) 1989-04-24
DE3534309A1 (de) 1987-04-02
NO161345C (no) 1989-08-02
DK460986A (da) 1987-03-27
NO863219D0 (no) 1986-08-11

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: DINGER, HORST

Inventor name: MOOSMANN, HORST