EP1471325B1 - Garde-main en matière plastique - Google Patents

Garde-main en matière plastique Download PDF

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Publication number
EP1471325B1
EP1471325B1 EP20040009445 EP04009445A EP1471325B1 EP 1471325 B1 EP1471325 B1 EP 1471325B1 EP 20040009445 EP20040009445 EP 20040009445 EP 04009445 A EP04009445 A EP 04009445A EP 1471325 B1 EP1471325 B1 EP 1471325B1
Authority
EP
European Patent Office
Prior art keywords
forestock
additional
extra
attachment
forearm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20040009445
Other languages
German (de)
English (en)
Other versions
EP1471325A1 (fr
Inventor
Norbert Fluhr
Jürgen GABLOWSKI
Wolfgang Bantle
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.)
Heckler und Koch GmbH
Original Assignee
Heckler und Koch 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 Heckler und Koch GmbH filed Critical Heckler und Koch GmbH
Publication of EP1471325A1 publication Critical patent/EP1471325A1/fr
Application granted granted Critical
Publication of EP1471325B1 publication Critical patent/EP1471325B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/16—Forestocks; Handgrips; Hand guards

Definitions

  • the invention relates to a plastic forearm, which is attached to a handgun in relation to the barrel substantially fixed in position, wherein at least one of the longitudinal sides at least one threaded hole for attaching an additional device is arranged.
  • positional designations such as “top” or “front” always refer to the weapon held in normal firing position, in which the axis of the soul is horizontal and the firing direction is forward.
  • Front shafts are found on many rifles, submachine guns, light machine guns and even pistols.
  • Modern Ordonnanzwaffen usually have front shafts made of plastic, which surround the barrel and possibly the gas piston or a tube for the closing spring at least from below.
  • This front shafts always represent a hand guard and are usually easy to remove and replace other front shafts, which are adapted to about accessories, such as the US rifle M 16, the plastic forearm against a metal forend replaceable, which is adapted to the rifle grenade device M 203.
  • This replacement fore-end in its general formations, may be any suitable fore-end.
  • the invention is particularly suitable for a forend, as described in the German patent application P 102 37 301.9 (not yet published on the priority date of the present patent application). The content of this patent application is incorporated by reference into the present documents and will not be further described below.
  • the attachment of such accessories to the forearm offers many advantages: surprisingly, the position of the forearm with respect to the barrel is at least as determined as the position of the handle to the barrel. On the handle, the attachment is about a target optics but commonplace (such as the night-vision device on the US rifle M 16).
  • a fore-end is supplied, which can optionally be exchanged in the simplest way for an existing or even damaged fore-end, if an additional device is to be attached to the weapon.
  • a special feature are the injected threaded bushes; on the one hand they ensure a reliable hold of the additional device; on the other hand, the load applied by the auxiliary device (s) is distributed over a relatively large area. This allows the plastic forend withstand the introduced loads easily permanently.
  • the expert can also locally increase the wall thickness in the threaded bushes and / or insert reinforcements in the plastic, for example glass fibers, metal rails o. The like ..
  • the occurrence of shear forces is minimized, which could be introduced by a holder, and Additional device is located on the forearm and thus can transmit forces to the forearm by friction.
  • the self-locking feature of the threaded bushing (s) has the advantage that a screw inserted therein does not have to be over tightened, which could otherwise endanger the grip of the threaded bushing in the plastic.
  • the additional device by means of at least one screw which is screwed into the or an associated threaded bushing from the outside, and by means of at least one further support on the forearm is firmly attachable.
  • the additional holder ensures or ensure distribution of the loads.
  • the further support is another screw which is screwed into a further threaded bushing, which is also injected into the forend. Since these threaded bushes can be injected with high accuracy in composite casting, their mounting locations and thus their mutual distance are precisely defined. As a result, an introduction of additional stresses in the forend due to inaccurate mutual distances of the threaded bushings is excluded.
  • the further holder is advantageously a rivet, which passes through the wall of the forearm.
  • a rivet ensures by pressing the additional device on the forend for a flat distribution of the introduced loads.
  • the considerable size of the cross-sectional dimensions of the Picatinny rail allows their simple production, such as precision casting, without reworking; Incidentally, considerable manufacturing tolerances are added without affecting the positional accuracy.
  • the transverse grooves of the rail ensure a reliable fit of the attached devices in a variety of places without their clamping on the rail latter overloaded too much.
  • Production-friendly materials, such as plastic, which do not have the strength of steel, can therefore easily be used.
  • threaded bushings are injected into the front stock in order to be able to attach a rail to it at the bottom and left and right, depending on how many devices are to be attached to the stock.
  • the additional device or one of the additional devices is a contact carrier.
  • This contact carrier may be coupled to parts of the rifle, such as the fuse or a separate switch, which is conveniently located near the other controls the rifle.
  • a headlight or infrared spotlight on a rail, which can then be connected to the contact carrier. Pressing a switch on the rifle or unlocking then actuates the headlight.
  • the power supply of a passive night target device, a laser pointer, rangefinder or other electrical device can be actuated via such a contact carrier.
  • the invention provides a simple and inexpensive means to equip a handgun quickly, universally and according to individual wishes with additional equipment.
  • the illustrated forearm substantially corresponds to the forearm of German Patent Application P 102 37 301.9 (not yet published on the priority date of the present patent application).
  • the content of this patent application is incorporated by reference into the present documents and will not be further described below.
  • the forend or hand guard is formed from a one-piece plastic body 1, on top of which a hinged cover 3 is placed.
  • the main part 1 with opened cover 3 is pushed from the front over the barrel, gas sampling piece, gas cylinder and linkage of a rifle, and then the cover is folded.
  • At the top of the main part 1 and in the cover 3 are vents from which hot air and launcher gases can escape.
  • the front of the main part 1 is closed by an attached cover 2.
  • a secured transverse pin (not shown) may pass through openings 5 ( Figure 2) and is secured to the gas sampling piece.
  • Projections 7 and a recess 9 on the rear side of the main part 1 engage with complementary formations in the housing of the rifle (not shown).
  • a rail is shown in a representation similar to Fig. 2, but with a different equipment.
  • Near the front of a short rail 15 is fastened laterally by means of a screw 10 and two rivets 17 which together give the short rail 15 the support for receiving a headlight (not shown).
  • the rivets 17 penetrate the wall of the main part 1 in cast or introduced during installation holes and fasten the short rail 15 of this permanently.
  • the screw 10 is used in addition to the power transmission for fixing the short rail during assembly and before riveting and sits in a self-locking threaded bushing 11th
  • a contact carrier 19 is attached, which is riveted or clamped and has to take only the weight of a plug-like contact slide whose exact location is immaterial.
  • Essential is the arrangement of at least one injected, self-locking threaded bushing 11, which serves for the positionally accurate and firm attachment (or at least the fixation before Annieten) of the rail 4 or 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (6)

  1. Garde-main en matière plastique, qui peut être rapporté sur une arme à feu portative, sensiblement en position fixe par rapport au fonctionnement de celle-ci, au moins un trou taraudé (11) pour la fixation d'au moins un dispositif additionnel (4, 15) étant agencé sur au moins l'un des côtés longitudinaux, caractérisé en ce que le trou taraudé est d'une configuration à freinage interne automatique et est formé dans une douille métallique (11) qui est incluse par injection dans la matière plastique du garde-main, des forces entre le dispositif additionnel (4, 15) en appui sur le garde-main et le garde-main étant transmises par friction.
  2. Garde-main selon la revendication 1, caractérisé en ce que le dispositif additionnel (4, 15) peut être rapporté de manière fixe sur le grade-main (1) au moyen d'au moins une vis (10) qui est vissée de l'extérieur dans la ou une douille taraudée (11), et au moyen d'au moins un autre élément de maintien (10, 17).
  3. Garde-main selon la revendication 2, caractérisé en ce que ledit autre élément de maintien est une autre vis (10) qui est vissée dans une autre douille taraudée (11) incluse par injection dans le garde-main (1).
  4. Garde-main selon la revendication 2, caractérisé en ce que ledit autre élément de maintien est un rivet (17) qui traverse la paroi du garde-main (1).
  5. Garde-main selon l'une des revendications 1 à 4, caractérisé en ce que le dispositif additionnel ou l'un de plusieurs dispositifs additionnels est un rail de support (4, 15) d'étendue longitudinale, destiné au montage d'appareils auxiliaires.
  6. Garde-main selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif additionnel ou l'un des dispositifs additionnels est un support de contact (19).
EP20040009445 2003-04-25 2004-04-21 Garde-main en matière plastique Expired - Fee Related EP1471325B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10318828 2003-04-25
DE2003118828 DE10318828A1 (de) 2003-04-25 2003-04-25 Vorderschaft aus Kunststoff

Publications (2)

Publication Number Publication Date
EP1471325A1 EP1471325A1 (fr) 2004-10-27
EP1471325B1 true EP1471325B1 (fr) 2006-09-06

Family

ID=32946434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040009445 Expired - Fee Related EP1471325B1 (fr) 2003-04-25 2004-04-21 Garde-main en matière plastique

Country Status (2)

Country Link
EP (1) EP1471325B1 (fr)
DE (2) DE10318828A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528458B2 (en) 2011-07-27 2013-09-10 Bernard T. Windauer Pressure-regulating gas block
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043653A1 (de) 2005-09-13 2007-03-15 Heckler & Koch Gmbh Gaszylinderbauteil und Handfeuerwaffe
US8191300B2 (en) 2009-01-28 2012-06-05 Daniel Defense, Inc. Handguard assembly and STANAG mount adapter assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6499245B1 (en) * 2001-03-09 2002-12-31 Richard E. Swan Modular sleeve yoke
US6508027B1 (en) * 2001-10-02 2003-01-21 Surefire, Llc Accessory mounts for firearms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528458B2 (en) 2011-07-27 2013-09-10 Bernard T. Windauer Pressure-regulating gas block
US9719739B2 (en) 2014-02-06 2017-08-01 Bernard (Bernie) T. Windauer Gas block balancing piston for auto-loading firearm

Also Published As

Publication number Publication date
EP1471325A1 (fr) 2004-10-27
DE502004001380D1 (de) 2006-10-19
DE10318828A1 (de) 2004-11-18

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