WO2020136639A1 - Ensemble extracteur pour pistolets - Google Patents

Ensemble extracteur pour pistolets Download PDF

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Publication number
WO2020136639A1
WO2020136639A1 PCT/IL2019/051385 IL2019051385W WO2020136639A1 WO 2020136639 A1 WO2020136639 A1 WO 2020136639A1 IL 2019051385 W IL2019051385 W IL 2019051385W WO 2020136639 A1 WO2020136639 A1 WO 2020136639A1
Authority
WO
WIPO (PCT)
Prior art keywords
extractor
bore
pin
assembly according
extractor assembly
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
PCT/IL2019/051385
Other languages
English (en)
Inventor
Eli OZALVO
Zion LANIADO
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.)
E At Z Technologies Ltd
Original Assignee
E At Z Technologies Ltd
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 E At Z Technologies Ltd filed Critical E At Z Technologies Ltd
Publication of WO2020136639A1 publication Critical patent/WO2020136639A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/16—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on the breech housing or frame
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/14—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on or within the bolt; Extractors per se

Definitions

  • the present invention relates to the field of firearms. More particularly, the invention relates to an extractor assembly for pistols, particularly semi-automatic pistols of the 1911 type.
  • Semi-automatic pistols generally comprise a frame to which a magazine of cartridges is securable, and a slide which is slidably mounted to the frame for front to rear recoiling movement when a bullet is fired from within the barrel, and a hammer.
  • the slide houses a firing pin and an extractor.
  • the extractor which is involved with cartridge feeding, extraction, and ejection, is mounted within a dedicated bore of the slide which extends from a rear end of the slide to a forward breechface.
  • the extractor holding a cartridge rim by a hook element pulls the spent cartridge rearwardly together with the slide.
  • the spent cartridge is pulled rearwardly until it forcefully contacts an ejector attached to the frame, and is consequently caused to be released from the hook element and ejected via an ejection port of the pistol.
  • the slide After contacting a stop, the slide is thrust forwardly by the recoil action and its breechface pushes the next cartridge forwardly via a feed ramp to the firing chamber, to permit another firing cycle.
  • the extractor is generally a resilient element that is biased by its elasticity towards the loaded cartridge, to ensure engagement with the cartridge rim while the cartridge is being loaded into the firing chamber.
  • the extractor does not always maintain engagement with the cartridge rim.
  • An extractor assembly for a 1911-type pistol having a slide configured with elongated and forwardly extending extractor and firing pin bores comprises a rear member positionable within said extractor bore and securable to said slide; a forward member with a forward hook which is positionable within said extractor bore and pivotally connected to said rear member; and one or more extractor springs positioned between said rear and forward members and biased to constantly apply a force onto a portion of said forward member in a direction radially outwardly from said extractor bore that causes said forward member to pivot in a direction inwardly towards a firing chamber located forwardly to said firing pin bore and said hook to tensionably hold a rim of a cartridge loaded in said firing chamber.
  • an "outward” direction is in a direction away from the slide, and an “inward” direction is in a direction towards the firing chamber.
  • the extractor assembly may further comprise a pin interengageable with the forward and rear members and about which the forward member pivots, said pin oriented substantially perpendicularly to a longitudinal axis of the extractor bore.
  • the pin is received within an aperture provided in each of two diametrically opposite pin holders formed at a forward end of a tubular body of the rear member and within an aperture formed in a rear mounting portion of the forward member.
  • the portion of the forward member to which a force is applied by the one or more extractor springs is an abutment plate extending rearwardly from the aperture formed in the rear mounting portion.
  • the abutment plate is generally significantly thinner than a thickness of a projection within which the forward member aperture is formed and from which the abutment plate continuously extends rearwardly.
  • an internal face of an inward side of the tubular body is recessed with one or more seats to accommodate positioning therewithin of the one or more extractor springs, respectively.
  • the internal face of the inward side of the tubular body is recessed with two longitudinally spaced seats to accommodate positioning therewithin of two extractor springs, respectively.
  • FIG. 1 is a perspective view from the front of an embodiment of an extractor assembly
  • FIG. 2 is a perspective view from the side of a forward member used in conjunction with the extractor assembly of Fig. 1;
  • FIG. 3 is a perspective inward view of a rear member used in conjunction with the extractor assembly of Fig. 1;
  • FIG. 4 is a perspective outward view of a rear member used in conjunction with the extractor assembly of Fig. 1;
  • Fig. 5 is a transparent plan view of a portion of a slide in which the extractor assembly of Fig. 1 is mounted;
  • FIG. 6 is a transparent perspective view from the top of a portion of a slide in which the extractor assembly of Fig. 1 is mounted, showing a cartridge rim when being tensionably held thereby.
  • the jointed extractor assembly of the present invention is biased by means of one or more extractor springs that are oriented substantially perpendicularly to the longitudinal axis of the barrel of the pistol.
  • the spring force transmitted by each extractor spring is accordingly able to be maximized since the extractor spring extends substantially in the direction of movement of the pivoting member which is adapted to engage the cartridge rim.
  • Fig. 1 illustrates the jointed extractor assembly, generally indicated by numeral 10, according to one embodiment of the invention.
  • Extractor assembly 10 comprises rear member 5 and forward member 25, which is narrower than rear member 5 and pivotally mounted to rear member 5 by a pin introduced through a pair of opposed apertures 9 formed at a forward region of rear member 5.
  • Extractor assembly 10 is generally suitable for use in conjunction with the M1911 semi-automatic pistol as it is configured similarly to the standard 1911-extractor and is adapted to perform the functions of the standard 1911-extractor. More particularly, extractor assembly 10 has an elongated configuration which is suitable for insertion within a dedicated bore formed within the slide, so that forward member 25 will be able to hold a cartridge rim at the same time that rear member 5 is secured to the slide. The specific configuration of extractor assembly 10 will be described hereinafter.
  • Fig. 2 illustrates forward pivoting member 25, which has a forward variable-thickness, cartridge- engaging body 14 and a rear mounting portion 32.
  • Variable-thickness body 14 is configured with a notch 21 between a thickened locator portion 17 for indicating the point along notch 21 which contacts the cartridge rim and a beveled hook 23, which is configured with a forward face 26 being beveled at an angle of e.g. 30 degrees, at the extreme forward portion of body 14.
  • Forward body 14 may have a planar front wall 17 extending rearwardly from locator portion 17 and a planar back wall 19 extending throughout the length of body 14.
  • wall 24 of notch 21 appears to be perpendicular to the side wall of hook 23, in reality it will generally be rounded or ramped to allow the cartridge rim to be gradually cammed into notch 21. Also, the underside of hook 23 may be rounded or ramped to facilitate cartridge ejection without interference.
  • Rear mounting portion 32 by which pivoting member 25 is mounted to the rear member, extends continuously and rearwardly from body 14.
  • Aperture 34 which is aligned with the apertures 9 of rear member 5 (Fig. 1), is provided within projection 36 of rear mounting portion 32, e.g. a sinusoidal projection, so as to be substantially perpendicular to wall 24 of notch 21.
  • the thickness of projection 36 is continuously reduced in a rearward direction, from a maximum thickness in the vicinity of aperture 34 to a minimum thickness at the rear extremity of mounting portion 32 which defines abutment plate 38, e.g. elliptical.
  • Figs. 3 and 4 illustrate rear member 5.
  • Rear member 5 is configured with a tubular body 42 that terminates at its rearward end with a protuberance 51 radially wider than body 42.
  • a circumferentially recessed notch 54 substantially perpendicular to the longitudinal axis of tubular body 42 and engageable with the firing pin stop is formed in the inward side of protuberance 51.
  • the rear face 56 of protuberance 51 may be beveled to conform to the beveled rear face of the slide within a dedicated bore of which the elongated extractor assembly is mounted.
  • tubular body 42 is formed with two elongated and diametrically opposite pin holders 44 and 45, in each of which is formed an aperture 9 for receiving a pin passing through aperture 34 of projection 36 (Fig. 2).
  • the internal face of each of pin holders 44 and 45 may be mutually parallel.
  • Two semielliptical cutouts 47 and 48 are removed from peripheral regions of body 42 between pin holders 44 and 45. Cutout 48 formed in the outward side of body 42, i.e. the side opposite to notch 54, is significantly longer than cutout 47 formed in the inward side of body 42, to accommodate the rotary movement of rounded projection 36 (Fig. 2) while forward member 25 pivots.
  • tubular body 42 The interior of tubular body 42 is hollowed out, at least from the forward extremity 52 of the pin holders to the rear edge 59 of cutout 48.
  • the internal face 56 of the inward side of body 42 extending rearwardly from the rear edge 53 of cutout 47 is recessed with two longitudinally spaced seats 57 and 58 to accommodate the positioning therewithin of corresponding extractor springs.
  • a transparent plan view of slide 60 is shown in Fig. 5 to illustrate the operation of extractor assembly 10. Extractor assembly 10 is mounted within elongated bore 63 formed within a right portion of the thickened slide body 61 and to the rear of ejection port 64, according to the illustrated orientation.
  • Pin 55 engaged with the pin holders of rear member 5 and about which forward member 25 pivots, is upwardly oriented and substantially perpendicular to the longitudinal axis of bore 63.
  • This pin orientation allows hook 23 of pivoting member 25 to pivot laterally, i.e. generally widthwise with respect to the longitudinal axis of bore 63.
  • Bore 63 may be of a uniform diameter D with the exception of a rear widened and opened portion to accommodate the placement therein of protuberance 51. Bore 63 extends forwardly beyond breechface 62, to allow hook 23 of pivoting member 25, which protrudes forwardly from bore 63, to hold the rim 69 of cartridge 68, which has been loaded into the firing chamber.
  • Another bore 66 adapted to receive firing pin 71 is formed centrally to bore 63 within slide body 61, and extends forwardly to breechface 62.
  • Spring loaded firing pin 71 is able to pass forwardly through an aperture of breechface 62 with sufficient momentum after being struck by the hammer to impact the primer of cartridge 68 and to cause ignition of the propellant and the subsequent forward discharge of a bullet through the barrel which is fitted within the forward end 67 of slide 60.
  • the rear edge of bore 66 is coincident with the forward edge of groove 73, which is adapted to receive the firing pin stop to prevent release of firing pin 71 from bore 66.
  • the firing pin stop which is formed with an opening through which an element of the hammer is introduced to enable forceful contact with firing pin 71, is also configured to be engaged with the rear notch 54 of rear member 5 of the extractor assembly which is aligned with groove 73.
  • Rear member 5 is substantially stationary while engaged with the firing pin stop.
  • the small radial clearance between the tubular body and the wall of bore 66 also assists in minimizing movement of rear member 5.
  • the spring force applied by extractor springs 76 and 77 is generally constant and efficiently transmitted since it is applied in the direction of movement of the abutment plate.
  • hook 23 located at the terminal end of body 14 is urged to pivot laterally.
  • cartridge 68 will be guided into, and held with tension by, hook 23, as also shown in Fig.
  • extractor assembly 10 By virtue of the configuration of extractor assembly 10 by which the longitudinal length L from pin 55 to a spring applied portion of abutment plate 38 is relatively short, the force applied by extractor springs 76 and 77 needs to be only of a relatively small magnitude so that a sufficiently large moment will be produced that will cause hook 23 to hold cartridge rim 69 with sufficient lateral pressure to resist disengagement. If so desired, a single extractor spring may be employed, as long as it applies sufficiently high spring power. Although extractor springs 76 and 77 provide sufficient spring power to resist disengagement from cartridge rim 69, they are not excessively stiff to ensure that hook 23 will properly engage with the rim 69 of new cartridges 68 as they are fed into the firing chamber.
  • the moment arm L for ensuring a relatively small-magnitude spring force is generally less than 15 mm, e.g. 13 mm.
  • first extractor spring 76 is spaced 8.6 mm from pin 55 and second extractor spring 77 is spaced 12.1 mm from pin 55.
  • extractor springs 76 and 77 of course is limited by the diameter of bore 63, which is generally less than 6 mm, e.g. 5.30 mm, thus limiting the magnitude of the spring force that needs to be applied.
  • a ratio of moment arm L to bore diameter D may range from 1.0 to 2.6, 1.0 to 2.2, or 2.2 to 2.6, for example 1.26 or 2.48.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

La présente invention concerne un ensemble extracteur pour un pistolet de type 1911 ayant une glissière conçue avec un extracteur allongé et s'étendant vers l'avant et des alésages de percuteur qui comprend un élément arrière pouvant être positionné à l'intérieur de l'alésage d'extracteur et pouvant être fixé à la glissière ; un élément avant ayant un crochet avant qui peut être positionné à l'intérieur de l'alésage d'extracteur et relié de façon pivotante à l'élément arrière ; et un ou plusieurs ressorts d'extracteur positionnés entre les éléments arrière et avant et sollicités pour appliquer constamment une force sur une partie de l'élément avant dans une direction radialement vers l'extérieur à partir de l'alésage d'extracteur qui amène l'élément avant à pivoter dans une direction vers l'intérieur vers une chambre de tir située à l'avant de l'alésage de percuteur et du crochet pour maintenir en tension un rebord d'une cartouche chargée dans la chambre de tir.
PCT/IL2019/051385 2018-12-25 2019-12-18 Ensemble extracteur pour pistolets Ceased WO2020136639A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL263962 2018-12-25
IL263962A IL263962A (en) 2018-12-25 2018-12-25 Sleeve tooth assembly for pistols

Publications (1)

Publication Number Publication Date
WO2020136639A1 true WO2020136639A1 (fr) 2020-07-02

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ID=66624595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2019/051385 Ceased WO2020136639A1 (fr) 2018-12-25 2019-12-18 Ensemble extracteur pour pistolets

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IL (1) IL263962A (fr)
WO (1) WO2020136639A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142923A (en) * 1962-03-12 1964-08-04 Olin Mathieson Bolt assembly comprising a pivoted firing pin serving also as the ejector and an extractor
US5974716A (en) * 1997-09-22 1999-11-02 Kidd; Russell Edward Extractor assembly
US6389725B1 (en) * 1999-03-04 2002-05-21 Fn Herstal, S.A. Fire arm with forward ejection or ejection brought to the fore-part of the fire arm
US20180087857A1 (en) * 2016-09-21 2018-03-29 Quarter Circle 10, LLC Biased pivoting cartridge extractor for blowback bolt firearms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142923A (en) * 1962-03-12 1964-08-04 Olin Mathieson Bolt assembly comprising a pivoted firing pin serving also as the ejector and an extractor
US5974716A (en) * 1997-09-22 1999-11-02 Kidd; Russell Edward Extractor assembly
US6389725B1 (en) * 1999-03-04 2002-05-21 Fn Herstal, S.A. Fire arm with forward ejection or ejection brought to the fore-part of the fire arm
US20180087857A1 (en) * 2016-09-21 2018-03-29 Quarter Circle 10, LLC Biased pivoting cartridge extractor for blowback bolt firearms

Also Published As

Publication number Publication date
IL263962A (en) 2020-06-30

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