EP3719436B1 - Kontaktkörper, kontaktnadel, waffenrohrverschluss und rohrwaffe - Google Patents

Kontaktkörper, kontaktnadel, waffenrohrverschluss und rohrwaffe Download PDF

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Publication number
EP3719436B1
EP3719436B1 EP20163221.3A EP20163221A EP3719436B1 EP 3719436 B1 EP3719436 B1 EP 3719436B1 EP 20163221 A EP20163221 A EP 20163221A EP 3719436 B1 EP3719436 B1 EP 3719436B1
Authority
EP
European Patent Office
Prior art keywords
contact
needle
needles
pin
guide body
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.)
Active
Application number
EP20163221.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3719436A1 (de
Inventor
Florian SCHWIEGER
Rüdiger BORCHERT
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition 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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP3719436A1 publication Critical patent/EP3719436A1/de
Application granted granted Critical
Publication of EP3719436B1 publication Critical patent/EP3719436B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F41A19/69—Electric contacts or switches peculiar thereto
    • F41A19/70—Electric firing pins; Mountings therefor

Definitions

  • the invention relates to a contact body for a weapon barrel breech, comprising a housing, at least one contact needle, a guide body mounted so as to be axially movable within the housing for receiving the at least one contact needle, with at least one of the contact needles being mounted so as to be axially movable within the guide body.
  • a propellant charge When a propellant charge is electrically ignited in a barrel breech block of barrel weapons, such as tank guns, an electrically conductive contact must be made with ammunition, such as a cartridge. This is usually done with contact needles that are pressed through the wedge plate onto the individual contact of the propellant charge igniter. If the weapon barrel lock is a wedge lock, the wedge moves radially to a bore axis to open the charge chamber. In order to prevent the contact needles from being destroyed, the contact needles are withdrawn before the weapon barrel breech is opened.
  • contact bodies are used to actuate the contact needles, which are inserted into the breech wedge and are actuated via a mechanical linkage during opening and closing in such a way that the contact needles are in front and be moved back.
  • the contact needles are usually mounted in the contact body in an axially movable manner.
  • the DE 736 564 A discloses a weapon barrel breech with a breech block in which a contact body for making an ignition contact is formed. Contact is made by pressing a firing pin axially onto a cartridge base.
  • the contact between the contact needles and the propellant charge igniter in the base of the case or the base of the cartridge is produced exclusively by the fact that the contact needles are pressed perpendicularly onto the contact.
  • the object of the invention is to provide a contact body that establishes more reliable contact with a surface to be contacted.
  • a contact body for a weapon barrel breech comprising a housing, at least one contact needle, a guide body mounted so as to be axially movable within the housing for receiving the at least one contact needle, with the at least one of the contact needles being mounted so as to be axially movable within the guide body.
  • the contact body has rotation means for each contact needle, which are designed in such a way that the contact needle rotates relative to the guide body during an axial movement.
  • a weapon barrel closure comprising such a contact body or a contact body developed as described below.
  • the contact needles are not only pressed onto the surface to be contacted, but also rotated, so that there is a relative movement between the surface to be contacted and the contact needle. This generates friction between the surface to be contacted and the contact needle, so that the surface to be contacted is roughened or superficially scraped off. According to the invention, oxidation and/or corrosion layers as well as impurities are broken through or displaced, so that a reliable electrical contact can be established.
  • the contact body for each contact needle has a contact pin fixed in or on the guide body as a means of rotation, and the at least one contact needle has one with the contact pin having a cooperating recess as a means of rotation, which is shaped in such a way that the contact needle rotates during an axial movement relative to the guide body in operative connection with the contact pin.
  • the axial movement of the contact needles relative to the guide body is forcibly coupled with a rotational movement about the axis of the contact needles.
  • the recesses and contact pins each work together in such a way that the contact needles perform a defined rotation relative to the axial movement.
  • the recess is a spiral recess.
  • the angle of rotation relative to the axial movement can be adjusted by the gradient of the spiral-shaped recess of the contact needle.
  • the contact body can be further developed such that the contact needle has a threaded pin which is preferably designed to pull out or drive out the contact pin with a contact needle from the contact body in the non-assembled state.
  • the contact body has a cover with recesses through which the contact needles extend out of the housing.
  • the contact body can provide that the contact needles and the recesses are designed in such a way that the contact needles can be removed through the recesses for assembly and disassembly, in particular after disassembly of the contact pins.
  • the contact needles can be removed from the contact body.
  • broken or worn contact needles can be carried out in a few simple steps without tools by the crew on board a tank, for example, and no special tools are required for assembly.
  • an elastic means in particular a spring, to be formed between the cover and the guide body, which prestresses the guide body against a shooting direction.
  • the contact body can provide for a lever to be formed behind the guide body in the firing direction, which lever can move the guide body axially in the firing direction.
  • the at least one contact needle can be reliably moved axially relative to the housing.
  • each contact pin has at least one elastically prestressed contact element, in particular a rotatably mounted ball or a sliding contact, in its tip.
  • the contact body in particular the guide body, has contact sleeves in which the contact needles are mounted so that they can move axially.
  • the contact sleeves are arranged in corresponding recesses in the guide body.
  • a second elastic means for prestressing the contact needles can be formed in each contact sleeve.
  • the respective elastic means can also be arranged directly in the recess of the guide body.
  • the contact sleeve acts as an electrical intermediate element between the contact pin and the contact needle. Furthermore, the provision of the contact sleeve allows a specific length to be set for pretensioning the contact needles by the second elastic means.
  • contact body provision can also be made for an opening to be formed in the housing, which can be covered by a cover which is secured by a prestressed pressure piece.
  • the contact body can provide that an opening is formed in the housing, which can be covered by a feeder contact holder, which has at least one feeder contact that is electrically connected to the at least one contact pin.
  • the contact pin can be electrically connected to the contact sleeves, which are electrically connected to the contact needles in order to form an electrical connection between the lead contact and the contact needle.
  • the tip of the contact needle has scraping edges or blades which are designed in such a way that when the contact needle rotates, material can be scraped off a contact surface of a sleeve base to be contacted.
  • the contact body 1 shows a schematic sectional view of an embodiment of the contact body 1 according to the invention for a weapon barrel closure.
  • the contact body 1 comprises a housing 10, at least one, preferably two, contact needles 20, a guide body 30, which is mounted so that it can move axially within the housing 10, for receiving the at least one contact needle 20.
  • the at least one contact needle 20 is mounted so that it can move axially within the guide body 30.
  • the contact body 1 has rotation means 22, 40 for each contact needle 20, which are designed in such a way that the contact needle 20 rotates relative to the guide body 30 by moving axially.
  • a contact pin 40 fixed in or on the guide body 30 is formed as a means of rotation for each contact needle 20 .
  • the at least one contact needle 20 has a recess 22 which interacts with the contact pin 40 and which is shaped in such a way that the contact needle 40 rotates in an operative connection with the contact pin 40 during an axial movement relative to the guide body 30 .
  • the contact body 1 has a cover 12 with recesses 14 through which contact needles 20 extend out of the housing 10 .
  • the contact needles 20 and the recesses 14 are designed in such a way that the contact needles 20 can be removed through the recesses 14 for assembly and disassembly, in particular after disassembly of the contact pins 40 .
  • a first elastic means 50 in particular a spring, is formed between the cover 12 and the guide body 30 and prestresses the guide body 30 against a weft direction S.
  • a lever 65 is formed behind the guide body 30 in the firing direction S and can move the guide body 30 axially in the firing direction S when actuated.
  • the guide body 30 has contact sleeves 60 in which the contact needles 20 are mounted so that they can move axially and in which a second elastic means 62 for prestressing the contact needles 20 is formed in each case.
  • FIG. 2 shows a further schematic sectional view of the embodiment of the contact body 1 according to the invention 1 .
  • the section plane according to 2 is orthogonal to the section plane according to 1 .
  • An opening 18 is formed in the housing 10 and can be covered by a cover 80 which is secured by a prestressed pressure piece 70 .
  • an opening 19 which can be covered by a lead contact holder 90 is formed in the housing 10 .
  • the lead contact holder 90 has at least one lead contact 92 which is electrically connected to the at least one contact pin 40 .
  • the contact pin 40 is electrically connected to the contact sleeves 60 which in turn are electrically connected to the contact pins 20 to form an electrical connection between the lead contact 92 and the contact pin 20 .
  • FIG. 3 shows a schematic sectional view transverse to the firing direction S in the area of the contact pins 40 of the embodiment of the contact body 1 according to the invention 1 and 2 .
  • the sectional view according to 3 is orthogonal to the cutting planes according to 1 and 2 .
  • Each contact pin 40 has at least one elastically prestressed contact element 44, in particular a ball mounted so as to be rotatable or a sliding contact, in its tip 42.
  • each contact pin 40 has an internal thread 48 in the end opposite the tip 42 .
  • a threaded pin 26 of a contact needle 20, which is carried along as a spare part, for example, can be screwed into the internal thread 48, so that the contact pin 40 can then be pulled out.
  • the respective contact needle 20 can be removed from the contact body 1 through the recess 14 of the cover 12.
  • a new contact needle 20 can then be installed by inserting it into the contact body 1 through the recess 14 of the cover 12 and then installing the previously removed contact pin 40 or a new one.
  • the contact needles 20, the contact pins 40 and the contact sleeves 60 are made of electrically conductive material such as metal in order to establish an electrical connection from the supply line contacts via the contact pins 40 to the respective contact sleeve 60 and finally to the respective contact needle 60.
  • the lid 12, the guide body 30 and the lead contact holder 90 are made of non-conductive material.
  • the lever 65 When it is actuated, the lever 65 is rotated so that the guide body 30 is moved in the firing direction S against the at least one elastic means 50 . This continues until the contact needles 20 hit the surface to be contacted, such as the ammunition's propellant charge fuse. Upon further actuation, the contact needles 20 are no longer moved in the weft direction S, but instead dip into the guide body 30 against the force of the second elastic means 62 .
  • the contact needles 20 move relative to the guide body 30.
  • Figure 4a shows a schematic representation of a contact needle 20 according to the invention for use in a contact body 1 according to FIG Figures 1 to 3 .
  • Figure 4b shows a further schematic representation of the contact needle 20 according to FIG Figure 4a in a opposite Figure 4a rotated position.
  • the recess 22 of the contact needle 20 is a spiral recess 22. This ensures that the contact needle 20 following the surface of the recess 22 rotates in operative connection with the associated contact pin 40 during an axial movement.
  • the threaded pin 26 of the contact needle 20 is formed at an end of the contact needle 20 opposite the tip 24 .
  • the threaded pin is designed to pull or drive out the contact pin 40 with a contact needle 20 from the contact body 1 in the non-assembled state.
  • FIG. 5 shows a schematic representation of the tip 24 of the contact needle 20 according to FIG Figures 4a and 4b .
  • the tip 24 of the contact needle 20 has scraping edges or blades. These are designed in such a way that when the contact needle 20 rotates, material can be scraped off a contact surface of a sleeve base to be contacted. This creates a reliable electrical contact.
  • the above disclosure relates equally to the contact body 1 as such, the contact needle 20 seen per se, a weapon barrel breech which comprises the contact body 1 and a barrel weapon which has such a weapon barrel breech.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP20163221.3A 2019-04-01 2020-03-16 Kontaktkörper, kontaktnadel, waffenrohrverschluss und rohrwaffe Active EP3719436B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019108433.4A DE102019108433A1 (de) 2019-04-01 2019-04-01 Kontaktkörper, Kontaktnadel, Waffenrohrverschluss und Rohrwaffe

Publications (2)

Publication Number Publication Date
EP3719436A1 EP3719436A1 (de) 2020-10-07
EP3719436B1 true EP3719436B1 (de) 2023-06-07

Family

ID=69844623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20163221.3A Active EP3719436B1 (de) 2019-04-01 2020-03-16 Kontaktkörper, kontaktnadel, waffenrohrverschluss und rohrwaffe

Country Status (5)

Country Link
EP (1) EP3719436B1 (hu)
DE (1) DE102019108433A1 (hu)
ES (1) ES2955599T3 (hu)
HU (1) HUE062689T2 (hu)
PL (1) PL3719436T3 (hu)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736564C (de) 1933-05-20 1943-06-22 Krupp Ag Elektrische Zuendung fuer Geschuetze
CH256259A (de) * 1947-04-12 1948-08-15 Oerlikon Buehrle Ag Elektrische Zündeinrichtung an Feuerwaffen.
DE2949130C2 (de) * 1979-12-06 1985-02-28 Rheinmetall GmbH, 4000 Düsseldorf Elektrische, für eine Rohrwaffe bestimmte Kontaktanzündungsvorrichtung
US4368590A (en) * 1980-06-26 1983-01-18 Remington Arms Company, Inc. Firing pin retractor mechanism for electrically-fired guns
FR2718838B1 (fr) * 1994-04-15 1996-06-28 Giat Ind Sa Dispositif d'initiation électrique à contacteur.
DE10052049A1 (de) * 2000-10-20 2002-04-25 Rheinmetall W & M Gmbh Rohrwaffe zum Verschießen elektrisch zündbarer Patronen, die elektronische Komponenten enthalten

Also Published As

Publication number Publication date
PL3719436T3 (pl) 2023-11-27
EP3719436A1 (de) 2020-10-07
ES2955599T3 (es) 2023-12-04
HUE062689T2 (hu) 2023-11-28
DE102019108433A1 (de) 2020-10-01

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