EP4194795A1 - Dispositif de réalisation d'une fixation secondaire d'un garde-main - Google Patents

Dispositif de réalisation d'une fixation secondaire d'un garde-main Download PDF

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Publication number
EP4194795A1
EP4194795A1 EP21213641.0A EP21213641A EP4194795A1 EP 4194795 A1 EP4194795 A1 EP 4194795A1 EP 21213641 A EP21213641 A EP 21213641A EP 4194795 A1 EP4194795 A1 EP 4194795A1
Authority
EP
European Patent Office
Prior art keywords
fore
abutment
clamping element
barrel
attachment
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.)
Pending
Application number
EP21213641.0A
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German (de)
English (en)
Inventor
Andreas Wutte
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.)
Glock Technology GmbH
Original Assignee
Glock Technology 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 Glock Technology GmbH filed Critical Glock Technology GmbH
Priority to EP21213641.0A priority Critical patent/EP4194795A1/fr
Priority to US18/062,400 priority patent/US20230184510A1/en
Publication of EP4194795A1 publication Critical patent/EP4194795A1/fr
Pending 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/66—Breech housings or frames; Receivers
    • 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 device for forming a secondary attachment of a forearm to the housing or to a barrel clamp or barrel attachment of a firearm attached to the housing.
  • the weapon housing has a housing upper part, usually called “upper”, and a housing lower part, usually called “lower”, which are detachably connected to one another, according to the preamble of claim 1.
  • Firearms with a multi-part housing have been known for a long time. Examples include the types M4/M16/AR15 or H&K G3 and their derivatives.
  • the upper part of the housing is connected to the lower part of the housing by means of bolts which run normal to the center plane of the weapon.
  • the upper part of the housing and the lower part of the housing are plugged into one another during assembly.
  • Appropriate (corresponding) holes are provided in both parts so that a front bolt (also known as a pivot pin) and a rear bolt (also known as a takedown pin) can be inserted, with which the housing connection is established .
  • the upper part of the housing can be opened around the axis of the front pin, hence the "pivot pin".
  • the breech is accessible and the weapon can be cleaned without complete disassembly.
  • the front bolt also called disassembly pin
  • the partial disassembly state can be achieved by partially pushing out, or the disassembled state by completely removing, the disassembly or pivot pin .
  • a front stock often also referred to as a "handguard” (English “handguard”), is often formed on the upper or lower housing, which protects the user from direct contact with the barrel.
  • the forend can be integral to the upper housing be formed, however, is present in many firearms as a separate component, which means that a connection to the weapon housing is required. This connection is also realized in most cases by a detachable connection using screws or bolts.
  • the fore-end is connected indirectly to a barrel clamp, also called barrel attachment, which is attached to the upper housing.
  • a barrel clamp also called barrel attachment
  • This is most notably seen on firearms on the AR-15 platform, where a barrel nut is used to secure the barrel relative to the upper case.
  • the fore-end is occasionally clamped non-elastically to this barrel nut (e.g EP 3835708 A1 , WO 2013010515 A1 ) or screwed ( DE 102005037884 B3 ).
  • the secondary fore-end attachment enables an elastic clamp connection to be formed between the fore-end and the upper housing and/or a barrel attachment connected to the upper housing in a fixed state, with the clamp connection comprising at least one clamping element and at least one abutment and with the clamping element being such is designed so that when connecting or removing the fore-end, an elastic deformation of at least part of the clamping element can take place relative to a rest position and that in the fastening state an elastically prestressed Plant on the abutment and / or at least partially recording is formed in the abutment.
  • “Left” is therefore related to the center plane of the weapon, "from the left” corresponds to a movement, actuation, exertion of force in the direction of the center plane of the weapon, starting from a starting position "to the left” of it, etc. Accordingly, the breech or the breech carrier is under the After a shot has been fired, it moves “backwards” under the action of the gases and “forwards” again under the action of a recoil spring, etc.
  • the 1 shows an example of a firearm, a carbine, in an exploded view of its most important assemblies.
  • the barrel 4 is mounted in the upper housing 11 by means of its barrel attachment 41, a lower housing 13 is partially shown with its most important elements, the handle and the magazine inserted are clearly visible; and below the barrel 4 and in front of the lower housing 13 the fore-end 12, also called hand guard, is shown.
  • center lines of the various circular recesses of the individual components after assembly are indicated with dashed lines, so that these center lines are aligned a dismantling pin 14 normal to the center plane of the weapon ( figure 5 ), which cum grano salis also forms a plane of symmetry for the weapon.
  • the dismantling pin 14 can only be pulled a little out of its holding position for partial disassembly, so that it can only be held in one of the two holding openings formed there in the upper housing 11 lies.
  • This retaining opening is designed as an elongated hole with a longitudinal extension parallel to the barrel axis 9 and allows the upper housing 11 together with the barrel 4 and fore-end 12 to be pulled out of the lower housing 13 a little in the direction of the barrel axis 9, so that a holder formed at the rear end of the upper housing 14 can be removed from a enclosure formed on the lower housing 13, and then the parts pushed forward can be pivoted about the dismantling pin 14.
  • the fore-end 13 is connected to the upper housing 11 at the same time or, as in Fig.2 shown as a separate step, the fore-end 13 is fastened to the upper housing 11 by means of a clamp connection to form a secondary fore-end safety device.
  • a securing element 3 acting as a clamping element 21 is elastically deflected downwards when it is plugged together.
  • the 3 thus shows this situation in a section in the weapon center plane 5, the deflection of the clamping element 21 of the securing element 3 can clearly be seen, which exerts an upward pretension in the direction of the abutment 22 through the spring element 211 designed as a lever arm.
  • the latching element 222 is designed to protrude downwards in the center of the center plane of the weapon in the transverse direction.
  • the dismantling pin 14 can also be seen, which is shown as a hatched area for the sake of clarity.
  • the dismantling pin 14 is in the dismantling position, i.e. at least partially pulled out of the lower housing 12 laterally, causing the fore-end 13 to move backwards into the end position in Fig.3b can be pushed.
  • the fore-end 13 is thus additionally fixed in its position by the dismantling pin 14 when this is pushed in again along the pivot axis 141 to fix the upper housing 11 to the lower housing 12 .
  • This essentially corresponds to a "primary fore-end lock".
  • the clamping element 21 comprises an elastically deformable spring element 211 and a latching element 212 designed for at least partial accommodation in the abutment 22 or at least partial abutment on the abutment 22 .
  • the abutment 22 can have a latching recess 211 for receiving and/or abutting the clamping element 21, in particular a latching element 212 that may be formed. Notches or beads, for example, which are relatively easy to provide, are conceivable as the latching depression 211, which allow the clamping element 21 to rest and bring an advantage in terms of production technology.
  • the abutment 22 can have a latching elevation 222 for at least partial contact with the clamping element 21, in particular the latching element (212) that may be formed, in the fastening state.
  • the variant after Figure 4b also enables the clamping element 21 to be displaced in the insertion direction R1 by elastic deflection of the spring element 211 or the latching element 212. If the end position is reached in this case, the clamping element 21 can in turn interact with the abutment 22.
  • the paragraph shown can be understood both as a latching recess 221 open on one side and as a latching elevation 222 which interacts with the latching element 212 of the clamping element 21 . Due to elastic deformation of the clamping element 21, the elastic clamping connection can be released when the fore-end 13 (not shown) is pulled off against the insertion direction R1 be overcome. The deformation of the clamping element 21 or the spring element 211 thus takes place in order to overcome the secondary locking of the fore-end.
  • Fig.4 The highly simplified illustration in Fig.4 should also be used to point out that an interchanged arrangement of the active components, i.e. clamping element 21 and abutment 22, on the forearm 13 or the upper housing 11 and/or the barrel attachment 41 should explicitly be included in the invention.
  • figure 5 the cut along the line V-V'in 2 , i.e. a view through the firearm analogous to the two positions as in 2 shown.
  • FIG 5 an additional embodiment of a secondary fore-end attachment according to the invention is shown schematically.
  • the abutment 22 is thus formed on the fore-end 13, while the clamping element is formed on the barrel attachment 41.
  • the lower housing 12 can be seen, which in the view of Figure 5b flush with the fore-end 13. Based on this For example, it can thus be easily understood that the clamping element 21 can be stationary, preferably integrally, on the upper housing 11 or the barrel attachment 41 and the abutment 22 can be stationary on the forearm 13 .
  • a few further exemplary embodiments are intended to further develop the concept according to the invention, especially with regard to the fact that the clamping element 21 can be stationary, preferably integrally, on the forearm 13 and the abutment 22 can be stationary on the upper housing 11 or the barrel attachment 41 .
  • the figs 6 and 7 Figure 10 are examples of how the secondary fore-end mount may be formed on the barrel mount 41 of an AR-15 style rifle.
  • the barrel attachment 41 is often designed as a barrel sleeve in such guns and fixes the barrel 4 to the upper housing 11, as shown in FIG 6 in synopsis with 7 can be seen very well.
  • the Figure 6a shows a fore-end 13 before assembly with the upper housing 11.
  • the primary fore-end attachment is in this example by a in the WO2021121877A1 made fastening mechanism explained in more detail on the barrel sleeve.
  • the WO2021121877A1 explains in detail the primary attachment to which the invention adds the secondary.
  • an additional clamping element 21 can also be seen, which in 7 in the supervision of the handgun on the line VII-VII' Figure 6a is shown in more detail.
  • the clamping element 21 is attached to the fore-end 13 by means of a screw connection and can be elastically deflected outwards by the spring element 211, i.e.
  • annular groove attached to the barrel sleeve here also referred to as barrel attachment 41.
  • the annular groove represents a locking depression 221 and thus the barrel attachment 41 also acts as an abutment 22 .
  • this relatively simple measure allows the fore-end 13 to be clamped elastically to the upper housing 11 or to the barrel attachment 41 even after the primary fore-end attachment has been released.
  • a mounting portion 213 on a second end section of the clamping element 21, or on the spring element 211 is formed, while a latching element 212 is formed in the form of a crank at the first end section.
  • the composite state is from the synopsis of Figures 6b and 7b quite easy to understand.
  • the clamping connection according to the invention can also be formed by the interaction of components which have a different primary function.
  • a barrel attachment 41 is shown schematically, as it is, inter alia, from WO2021063891A1 is known and to which explicit reference is made at this point.
  • a closed barrel clamping lever 42 is shown, which has an additional function for the formation of the secondary forearm attachment according to the invention.
  • the barrel clamping lever 42 can function as a one-sided spring element 211 due to its bearing or support in the barrel attachment 41, as shown in FIG Figure 8a is evident.
  • the cranked running clamping lever thus acts as a spring element 211 and has a latching element 212 on its second end section.
  • On the inside of the fore-end 13 a notched elevation 222 can be seen.
  • clamping element 21 is designed as a barrel clamping lever 42 in a perspective view ( Figure 9a ) or in side view ( Figure 9b ) is shown.
  • the barrel clamping lever 42 is designed to be sufficiently elastically deformable and thus at the same time the clamping element 21 for the Cooperation with the integrally formed on the forearm 13 abutment 22 forms.
  • the clamping element 21 can be designed as an eyelet-shaped securing element 3 for receiving the dismantling pin 14 and a latching elevation 222 is designed on the upper housing 11 or the barrel attachment 41 .
  • the eyelet shape of the securing element 3 also allows the clamping element 21 to rest on the outside of the eyelet in the installed state, which means that another dual function of components can be utilized. In this way, a primary fastening of the fore-end 13 and, with sufficient tolerances, also a secondary fore-end fastening can be formed.
  • the safety element 3 has an additional recess on its side facing the barrel attachment 41 for at least partially abutting or accommodating the abutment 22, as a result of which the fore-end 13 can be positioned with great repeat accuracy at a defined position of the clamping element 21 relative to to the abutment 22 takes place.
  • the clamping element 21 can be fixed relatively easily to the upper housing 11 or the barrel attachment 41 by means of screws, dowel pins or the like.
  • the elastic deformation of at least part of the clamping element 21, in particular any latching element 212 that may be formed, relative to its rest position in the fastened state is between 0.5 and 0.1 mm, preferably between 0.4 and 0.2 , in particular about 0.3 mm.
  • the use of spring steel has proven to be particularly useful proved to be favorable, since this retains the elastic prestressing of the clamping element 21 quite well even during or after increased thermal stress.
  • the invention is not limited to the exemplary embodiments shown and described, but can be modified and configured in various ways.
  • the shown cross-sectional shapes of the named housing and closure parts, bolts, rails, recesses, etc. can be adapted to the given basic data, and the lengths and positions with respect to the housing can also be easily adapted by the person skilled in the art with knowledge of the invention.
  • equivalent versions are obvious with knowledge of the invention and can be carried out without further ado by a person skilled in the art.
  • substantially means a deviation of up to 10% of the stated value, if physically possible, both downwards and upwards, otherwise only in the sensible direction, for degrees (angle and temperature) , and terms such as “parallel” or “normal” mean ⁇ 10°.
  • terms such as “substantially constant” etc. the technical possibility of deviation, which the person skilled in the art bases it on, and not the mathematical possibility, is meant.
  • a “substantially L-shaped cross-section” comprises two elongated surfaces which merge into the end of the other surface at one end and whose longitudinal extension is arranged at an angle of 45° to 120° to one another.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
EP21213641.0A 2021-12-10 2021-12-10 Dispositif de réalisation d'une fixation secondaire d'un garde-main Pending EP4194795A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21213641.0A EP4194795A1 (fr) 2021-12-10 2021-12-10 Dispositif de réalisation d'une fixation secondaire d'un garde-main
US18/062,400 US20230184510A1 (en) 2021-12-10 2022-12-06 Secondary handguard mount

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21213641.0A EP4194795A1 (fr) 2021-12-10 2021-12-10 Dispositif de réalisation d'une fixation secondaire d'un garde-main

Publications (1)

Publication Number Publication Date
EP4194795A1 true EP4194795A1 (fr) 2023-06-14

Family

ID=78829306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21213641.0A Pending EP4194795A1 (fr) 2021-12-10 2021-12-10 Dispositif de réalisation d'une fixation secondaire d'un garde-main

Country Status (2)

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US (1) US20230184510A1 (fr)
EP (1) EP4194795A1 (fr)

Citations (12)

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Publication number Priority date Publication date Assignee Title
DE102005037884B3 (de) 2005-08-10 2007-01-18 Heckler & Koch Gmbh Adapterbauteil
US8037633B1 (en) 2009-02-20 2011-10-18 Troy Stephen P Handguard system for firearms
DE102010023466A1 (de) * 2010-06-13 2011-12-15 Schmeisser Gmbh Handschutz für eine Waffe
US20120198990A1 (en) * 2011-01-13 2012-08-09 Brittin Donald E Handguard system with integral gas tube for gas operated firearms
WO2013010515A1 (fr) 2011-07-21 2013-01-24 Proarms Armory, S.R.O. Agencement pour fixer le garde-mains inférieur à rail sur une arme d'épaule
US8607490B1 (en) 2011-05-12 2013-12-17 Brendon B Zinsner Quick release hand guard assembly for a rifle
DE102013008241A1 (de) 2013-05-15 2014-11-20 Goetz Coenen Handschutz für eine Waffe
US8931196B1 (en) 2013-11-18 2015-01-13 Mark C. LaRue Firearm having capability for field assembly and disassembly
US9476673B2 (en) 2014-09-30 2016-10-25 Mega Arms, LLC Method of locking a handguard to an upper receiver of a firearm
US20170059273A1 (en) 2015-08-25 2017-03-02 WHG Properties, LLC Firearm handguard
WO2021063891A1 (fr) 2019-10-04 2021-04-08 Glock Technology Gmbh Arme à feu dotée d'un dispositif de serrage de tube
EP3835708A1 (fr) 2019-12-13 2021-06-16 Glock Technology GmbH Fût destiné au montage par serrage sur une arme à feu existante

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Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037884B3 (de) 2005-08-10 2007-01-18 Heckler & Koch Gmbh Adapterbauteil
US8037633B1 (en) 2009-02-20 2011-10-18 Troy Stephen P Handguard system for firearms
DE102010023466A1 (de) * 2010-06-13 2011-12-15 Schmeisser Gmbh Handschutz für eine Waffe
US20120198990A1 (en) * 2011-01-13 2012-08-09 Brittin Donald E Handguard system with integral gas tube for gas operated firearms
US8607490B1 (en) 2011-05-12 2013-12-17 Brendon B Zinsner Quick release hand guard assembly for a rifle
WO2013010515A1 (fr) 2011-07-21 2013-01-24 Proarms Armory, S.R.O. Agencement pour fixer le garde-mains inférieur à rail sur une arme d'épaule
DE102013008241A1 (de) 2013-05-15 2014-11-20 Goetz Coenen Handschutz für eine Waffe
US8931196B1 (en) 2013-11-18 2015-01-13 Mark C. LaRue Firearm having capability for field assembly and disassembly
US9476673B2 (en) 2014-09-30 2016-10-25 Mega Arms, LLC Method of locking a handguard to an upper receiver of a firearm
US20170059273A1 (en) 2015-08-25 2017-03-02 WHG Properties, LLC Firearm handguard
WO2021063891A1 (fr) 2019-10-04 2021-04-08 Glock Technology Gmbh Arme à feu dotée d'un dispositif de serrage de tube
EP3835708A1 (fr) 2019-12-13 2021-06-16 Glock Technology GmbH Fût destiné au montage par serrage sur une arme à feu existante
WO2021121877A1 (fr) 2019-12-13 2021-06-24 Glock Technology Gmbh Garde-main destiné à être monté par serrage sur une arme à feu existante

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US20230184510A1 (en) 2023-06-15

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