WO2005017439A2 - Ensemble poignee pour une arme - Google Patents

Ensemble poignee pour une arme Download PDF

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Publication number
WO2005017439A2
WO2005017439A2 PCT/US2003/035601 US0335601W WO2005017439A2 WO 2005017439 A2 WO2005017439 A2 WO 2005017439A2 US 0335601 W US0335601 W US 0335601W WO 2005017439 A2 WO2005017439 A2 WO 2005017439A2
Authority
WO
WIPO (PCT)
Prior art keywords
weapon
handle
grip assembly
assembly
clamps
Prior art date
Application number
PCT/US2003/035601
Other languages
English (en)
Other versions
WO2005017439A3 (fr
Inventor
Todd Griffin
Original Assignee
R/M Equipment, Inc.
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 R/M Equipment, Inc. filed Critical R/M Equipment, Inc.
Priority to US10/567,264 priority Critical patent/US20070271832A1/en
Priority to AU2003291376A priority patent/AU2003291376A1/en
Priority to BRPI0412534-7A priority patent/BRPI0412534A/pt
Priority to AU2004266298A priority patent/AU2004266298C1/en
Priority to CA2534847A priority patent/CA2534847C/fr
Priority to PCT/US2004/003760 priority patent/WO2005019762A2/fr
Priority to MXPA06001447A priority patent/MXPA06001447A/es
Priority to EP04775767A priority patent/EP1654512A4/fr
Priority to NZ545384A priority patent/NZ545384A/en
Priority to SG200800890-6A priority patent/SG165173A1/en
Priority to CL200402000A priority patent/CL2004002000A1/es
Publication of WO2005017439A2 publication Critical patent/WO2005017439A2/fr
Publication of WO2005017439A3 publication Critical patent/WO2005017439A3/fr
Priority to IL173537A priority patent/IL173537A/en

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/20—Butts; Butt plates; Mountings therefor

Definitions

  • the present invention generally relates to a weapon grip assembly, more particularly, to a weapon grip assembly for forwardly supporting a weapon or weapon system.
  • tactical weapon system which includes a "host weapon” (e.g., a rifle) which is equipped with, or may be equipped with, a variety of "supplemental devices,” for instance a 40mm grenade launcher.
  • a host weapon e.g., a rifle
  • supplemental devices for instance a 40mm grenade launcher
  • Such host weapons are further configurable or adaptable to receive a variety of rails, interbars, or rail systems, upper/lower receiver and/or handguard components, buttstocks, or other accessories (e.g., sites, illumination devices, sling attachments or anchors, etc.).
  • weapon system accessories have been manufacturer specific, each manufacturer of modular weapon systems providing items for integration with their rail, rail system etc.
  • forward pistol grips are known and commercially available for integration with a forend assembly of a weapon, more particularly a rail or rail system, the variety of forend configurations available for a weapon have precluded a more versatile, "one size fits all" solution for forwardly supporting a weapon system in its variety of configurations.
  • a weapon system comprising a host weapon (e.g., rifle) and a supplemental device (e.g., grenade launcher)
  • the launcher mounts to the rifle in a position which places the launcher in the front half of the rifle, and below the rifle barrel.
  • This location has been the standard of armed forces worldwide since the introduction of the rifle mounted grenade launcher about 40 years ago. While the above described attachment method of the launcher to the host rifle may be the most practical solution for the integration of these separate devices, it does not provide the user with the best solution for carrying or operating the rifle or the launcher when the two devices are combined.
  • Carrying or operating the rifle/launcher combined weapon system requires that one of the operator' s hands be placed on the pistol grip of the rifle, near the rifle trigger, while the other hand is placed near the forward end of the weapon system, beneath the grenade launcher, to support the system in a position chosen by the operator for carrying and/or operation of either device.
  • the right hand typically used to support the rear end of the rifle at the pistol grip, and to operate the rifle trigger, is partially wrapped around the pistol grip which allows the operator to close their fingers around same, and use their index finger to fire the rifle.
  • the left hand typically used to support the forward end of the rifle (i.e., the end away from the user) is placed below the grenade launcher, in a palm-up cup or cradle position, with the fingers and thumb wrapped partially around the launcher handguard to both support the weight of the rifle/launcher combination and control its orientation in all axes.
  • the palm-up position required of the operator' s left hand is necessary because of the ribbed handguard of the 40mm launcher barrel cannot be gripped by the operator's hand in any other way. Because the barrel is located below the launcher receiver, the handguard does not and cannot fully encircle the barrel, making it thereby impossible for the operator to wrap their hand around the barrel to establish a strong grasp on the barrel.
  • the diameter along the launcher handguard is over 2.25 inches, which is more than 50% larger than the optimal grip diameter for an operator with average sized hands to grip an object by wrapping their fingers around it, and having at least one finger wrap back to their thumb.
  • the launcher barrel handguard is not sized to provide the best gripping surface, it is sized to accommodate the 40mm barrel within it.
  • the M203 40mm barrel handguard is made of a thin plastic material which is designed primarily to serve as a location for the operator to place their hand. As there is very little heat produced when firing through an M203 barrel, the handguard is not specifically required to perform an insulating function.
  • the M203 40mm handguard surface is interrupted by two cartridge retainer rivets and a handguard locator rivet. Such structures may interfere with attachment solutions, and therefore require consideration.
  • the M203 40mm barrel is a thin wall design which precludes using fasteners which only partially penetrate the barrel wall.
  • the barrel handguard is adhesively adhered to the barrel because the barrel walls prohibit the use of fasteners.
  • weapon barrels are generally not pierced by fasteners because of their prime function to contain exploding gases. Any solution requiring a fastener which breaches the barrel wall is not possible.
  • the thin wall of the barrel prevents any attachment solution which could distort the barrel by applying pressure unevenly, such a barrel being incapable of proper performance.
  • the barrel assembly of the M203 is designed for removal from the receiver without tools. This allows for easy cleaning by the operator as the barrel is the component most dirtied by firing.
  • any grip attachment solution which prevents or inhibits this barrel removal process is undesirable.
  • cleaning the barrel can be a messy affair using solvents to remove barrel reside and then repeatedly rinsing the barrel to remove the solvent residue.
  • the barrel and handguard get contaminated on the outside during the process and must also be cleaned.
  • a dry handguard is essential for the operator to maintain a grip. Any grip attachment solution that remains on the barrel during the cleaning process becomes another area to clean and is therefore undesirable.
  • the barrel is also removable from the receiver to allow an armorer to perform repairs.
  • a weapon grip assembly for supporting a forend of a weapon or weapon system, more particularly a versatile weapon grip assembly for select integration with a 40mm grenade launcher which: is commercially available "off-the-shelf" and requires no developmental effort; - can be fitted to any M203 launcher now in service, with no modifications of same required; - is small, lightweight and rugged; - is not permanently mounted onto the launcher barrel assembly; can be quickly attached and detached from the launcher handguard by the operator without tools; - conforms tightly to barrel surfaces; - does not pierce the barrel or handguard; - can be adjustably positioned on the launcher to suit operator size preferences and comfort; - can aid and/or improve the firing accuracy of the weapon system (e.g., rifle and launcher) by allowing the operator to have improved control on the weapons because of a better grip; - does not hamper or prolong maintenance activities of the launcher or rifle; - does not implicate nor involve additional launcher or rifle operational considerations or
  • a weapon system e.
  • a preferred weapon grip assembly of the subject invention attaches to a forward portion of a weapon, for instance, to a handguard, by at least partially encircling same (i.e., clasping a portion thereof) with two clamps (i.e., jaws) of a base assembly which is supported for operative engagement by a handle.
  • the base assembly further includes a post (e.g., a threaded stud) having a clamp end adapted to retain each of the clamps for pivot motion with respect thereto.
  • the post of the base assembly is received within a bore of the handle, a mandrel being interposed between the handle and the clamps of the base assembly.
  • the handle of the weapon grip assembly advantageously includes a stowage space accessible at a free end thereof.
  • a cap is further provided for sealing the stowage space.
  • the preferred weapon grip assembly further includes a latching mechanism for reversibly securing the mandrel to the handle such that the mandrel and the handle ride upwardly upon the post of the base assembly to actuate the clamps and "lock" them in position about the weapon.
  • the weapon grip assembly further includes an alignment and retention mechanism for positioning and holding (i.e., orientingly uniting) the mandrel upon the base assembly, more particularly, the clamp end thereof.
  • FIG. 1 illustrates the weapon grip assembly of the subject invention, in combination with a representative, non-limiting weapon, namely, an assault weapon;
  • FIG. 2 is a perspective "forward" view of a preferred embodiment of the weapon grip assembly of the subject invention
  • FIG. 3 is a perspective "rear” view of the weapon grip assembly of FIG. 2;
  • FIG. '4 is an exploded view of the weapon grip assembly of FIG. 2;
  • FIG. 5 is a "front" elevational cross section of the weapon grip assembly of FIG. 2, illustrating the clamps thereof in a readied condition for receipt of a forward portion of a weapon, more particularly an M203 style grenade launcher;
  • FIG. 6 is a view as FIG. 5, the clamps of the subject invention shown pivoted from their static FIG. 5 position, and in secure engagement with the handguard of the grenade launcher;
  • FIG. 7 is a section taken along lines 7-7 of FIG. 6 illustrating a locking mechanism for the handle, in addition to an alignment and retention mechanism for the mandrel;
  • FIG. 8 is a section taken along lines 8-8 in FIG. 7 further illustrating the locking mechanism for the handle;
  • FIG. 9 is a section taken along lines 9-9 in FIG. 6 illustrating the interface of a clamp of the subject invention with the weapon handguard;
  • FIG. 10 is a section taken along lines 10-10 of FIG. 5 illustrating items housed within a stowage compartment of the handle;
  • FIG. 11 is a perspective rear view of the weapon grip assembly of the subject invention, in combination with a grenade launcher, and equipped with an accessory, namely a flashlight assembly;
  • FIG. 12 illustrates the accessory of FIG. 11 in exploded view
  • FIG. 13 is an exploded view, as FIG. 3, of an alternate embodiment of the subject invention.
  • FIG. 14 is an exploded view, as FIG. 3, of a further embodiment of the subject invention illustrating, among other things, an alternate handle latching mechanism.
  • FIGS. 2-12 the structures and features of the weapon grip assembly of the subject invention shown in FIG. 1 attached to a weapon system, are generally illustrated in the views of FIGS. 2-12.
  • the functionality of the subject weapon grip assembly is best appreciated with reference to FIGS. 5-9, wherein there is specifically shown a variety of relationships between select structures and/or subassemblies of the subject invention and the weapon system, and among said select structures and/or subassemblies.
  • FIGS. 13 & 14 further alternate, non-limiting embodiments of the subject weapon grip assembly are shown in FIGS. 13 & 14. With reference to FIG.
  • the weapon grip assembly 16 of the subject invention in operative engagement with a representative weapon, namely an assault weapon 18 (i.e., a weapon system) .
  • the weapon grip assembly 16 of the subject invention includes a base assembly 20 extending from, or supported by, a handle 22.
  • the base assembly 20 includes clamps or jaws 24 adapted to be secured to a forward portion of the weapon 18 (e.g., a handguard of the forward portion thereof) , more particularly, each of the clamps 24 preferably includes a weapon receiving surface 26.
  • the grasping function of the clamps 24 of the base assembly 20 is implicated via manipulation of the handle 22 relative thereto, more particularly, the interplay between structures of the handle 22 and base assembly 20 permit the clamps 24 to be reversibly secured to the forward portion of the weapon 18, as will be later discussed in greater detail, particularly with respect to FIGS. 5-9.
  • the weapon grip assembly 16 of FIG. 1 is representatively shown operatively depending from a grenade launcher 28, e.g., .a M203 style 40mm launcher.
  • the weapon grip assembly 16 is selectively positionable for attachment to a ribbed barrel handguard 30 of the launcher 28 so as to depend therefrom.
  • the subject weapon grip assembly is not intended to be limited to attachment to a grenade launcher. It is emphatically noted that the clamps of the subject weapon grip assembly are generally intended to clasp a forward portion of the weapon or weapon system, the clasping function of the base assembly being " particularly advantageous in the context of the subject weapon grip assembly.
  • the subject weapon grip assembly is designed for affixation to a forward portion of a weapon, such as a handgaurd, for forwardly supporting same.
  • the preferred embodiment of the weapon grip assembly 16 of the subject invention generally includes a base assembly 20 extending from, or being generally supported by a handle 22, and a mandrel or collar 32 interposed between a portion of the base assembly 20 and the handle 22.
  • a base assembly 20 extending from, or being generally supported by a handle 22, and a mandrel or collar 32 interposed between a portion of the base assembly 20 and the handle 22.
  • a mandrel or collar 32 interposed between a portion of the base assembly 20 and the handle 22.
  • the weapon grip assembly 16 further includes an alignment and retention mechanism 34 (i.e., a retainer), for positioning and holding (i.e., orientingly uniting) the mandrel 32 upon the base assembly 20, and still further, preferably, but not necessarily, includes a latching mechanism 36 for reversibly securing the handle 22 to mandrel 32, thereby fixing subject spatial relationship (s) between the handle 22 and the base assembly 20 as will be later discussed.
  • the base assembly 20 of the weapon grip assembly 16 includes clamps or jaws 24 adapted to be secured to the forward portion of the weapon, and a post 38 having a clamp end 40 adapted to retain the clamps 24 (FIG. 4) .
  • the clamps 24 are retained or anchored to the clamp end 40 of the post 38 for pivot motion with respect thereto, and are further preferably individually biased so as to readily accept the forward portion of the weapon system (i.e., the weapon grip assembly is intended to have a readied condition for affixation to the weapon, namely a pre-application/pre- affixation status or "static" condition) .
  • the base assembly components namely the clamps 24 and post 38, are preferably fabricated from aluminum, and are hard-coat anodized in black.
  • Each of the clamps 24 of the base assembly 20 generally has a weapon receiving surface 26 opposite an exterior or outer surface 42, and opposing ends, namely a free end 44 opposite a base end 46. As is best seen in FIG.
  • the base end 46 of each of the clamps 24 is preferably adapted for pivot motion (e.g., hinged engagement) upon the clamp end 40 of the post 38 (i.e., the distance between the free ends 44 of the clamps 24 is not fixed, that is to say, there exists a range of travel between the free ends 44 of the clamps 24) .
  • the base end 46 of each of the clamps 24 preferably has a lobe-like configuration, i.e., a surplusage of material on the exterior surface of the clamp: the base end 46 has a local exterior surface which extends or protrudes beyond a contour of an outer radius of the clamp 24, (more particularly, a contour or profile associated with the exterior surface 42 thereof), see FIGS. 4 and 5/6.
  • Each lobe 48 (i.e., locally thick segment or terminus) of the base end 46 of the clamp 24 includes a thru hole 50 for receipt of a pin 52 which traverses opposing upstanding wall segments 54 of the clamp end 40 of the post 38 via a set of paired and aligned thru holes 53, thereby securing the clamp 24 to the post 38.
  • the pins 52, and pin holes 50, 53 are of a specific design so as to allow the pins 52 to be inserted from one side of the clamp end 40 of the post 38 yet be held in secure, fixed position by an interference fit on the other side thereof. This assembly method permits field replacement of a clamp which may become damaged, while avoiding screw-type fasteners which can become loosened.
  • the pins are a strong steel material coated for corrosion protection.
  • the clamp pin 52 defines a pivot axis for each of the clamps 24, the range of pivot motion for the clamps 24 being regulated by the mandrel 32, that is to say, the interrelationships and interactions of and between the components of the weapon grip assembly of the subject invention, e.g., the handle 22/base assembly 20, in response to the geometry and configuration of the weapon system to be clasped.
  • the lobe configuration for the base end 46 of the clamp 24, essentially the excess material in the vicinity of the pivot axis thereof, ensures structural integrity in the vicinity of the clamps thru hole 50, for of long term reliable pivoting thereof.
  • a static condition for the weapon grip assembly 16 advantageously positions (e.g., biases) the jaws 24 of the base assembly 20 in an "open” condition (FIG. 5) .
  • a compression spring 56 one for each of the clamps 24, is seated so as to be interposed between an exterior surface of the lobe 48 of the base end 46 thereof, and a surface 58 from which the opposing upstanding wall segments 54 of the clamp end 40 of the post 38 extend (i.e., a "floor" of the clamp receiving "space,” see FIGS. 4 and 5/6).
  • the springs 56 bias each of the clamps 24 (i.e., impart a force upon the base end 46 of the clamp 24) such that the clamps 24 are "open," in readiness for capturing a portion of the weapon.
  • the biasing effect of the springs 56 upon the clamps 24 is negated, or more generally regulated, to the point where the springs 56 are compressed and the free ends 44 of the clamps 24 secured to the weapon 18 (FIG. 6) , by the mandrel 32 as will be later discussed.
  • a further advantageous feature of the subject invention is that the clamps 24 cannot open far enough to allow the opening springs 56 to come loose and fall out.
  • the free ends 44 of each of the clamps 24 preferably, but not necessarily, have a profiled tip 62, that is to say, the tip 62 of the free end 44 is not square or squared.
  • a combination of planar surfaces extending from the exterior 42 and weapon receiving 26 surfaces of the free end 44, unite, at about a 90° angle, to define the free end terminus or tip 62.
  • the subject clamp tip configuration is advantageous in that it permits mating of each of the clamps 24 with the upper portion of the handguard 30, e.g., a vertical lip 64 thereof, such that motion circumferentially about the launcher handguard 30 is prohibited, yet the relationship between the clamp tip 62 and the handguard 30 permits a calculated amount of play to accommodate inherent manufacturing tolerances of the handguard, as well as those between the varients of known manufacturers tolerances of the grip, as well as debris infiltrations (FIG.
  • Each of the clamps 24 of the base assembly 20, in furtherance of clamping, is preferably curved throughout a length thereof, that is to say between the base 46 and the free end 44 of same.
  • the weapon receiving surface 26 of each of the clamps 24 is adapted to cooperatively engage (e.g., receive or seat) an exterior surface of the handguard 30 of the forward portion of the weapon (see FIG. 9) .
  • the weapon receiving surface 26 includes a concave segment 66, more particularly a radiused groove, for receipt or seating of a rib 68 of the barrel handguard 30.
  • the ribs 68 thereof provide integral indexing and 90° alignment with a longitudinal axis of the launcher barrel 72.
  • the radiused groove 66 of the weapon receiving surface 26 facilitates operator selection a specific rib location on the handguard for handle placement vis-a-vis the weapon grip assembly; maintains the select position; and, helps the weapon grip assembly in its entirety, especially the handle thereof, to resist fore and aft motion (i.e., longitudinal movement) when the operator is pulling/pushing on it while operating or carrying the weapon system.
  • Each of the clamps 24 further includes a radiused recess 74 across a short axis thereof, above a length midpoint for same (i.e., positioned closer to the free end 44 of the clamp 24 rather than the base end 46 thereof) .
  • the radiused recess 74 effectively traverses (i.e., laterally traverses) the weapon receiving surface 26 from one lateral side edge to another lateral side edge.
  • a rivet 76 of (FIG. 5) a locater disk, not shown, can protrude significantly from the launcher barrel 72.
  • the radiused recess 74 of the weapon receiving surface 26 allows the clamps 24 of the base assembly 20 to be positioned on top of, or over, the rivet 76 without consideration for its protrusion (i.e., permits unencumbered attachment thereover, FIG. 6) , so as not to limit positioning options relative to the launcher.
  • the base assembly 20 also includes post or stud 38 which, among other things, supports the clamps of the base assembly 20. At least a portion of the post 38 is threaded for integration with the handle 22, as evidenced by reference to FIG. 4, more particularly, the threaded portion of the post 38, and thus entire base assembly 20, is intended to be drawn towards or into the handle 22.
  • the upstanding wall segments 54 of the clamp end 40 of the post 38 include a profiled (e.g., beveled) upper edge 78 (i.e., barrel rib contact surface, see FIG. 7) .
  • the upper edge 78, more particularly, the outer upper edge, of each upstanding wall segment 54 is adapted to abut a portion of a rib 80 adjacent the rib 81 seized by the clamp or jaw 24.
  • the aforementioned structural feature prevents forward and backward release of the weapon grip assembly 16, yet safely allows a small amount of rocking at high push/pull pressures .
  • the mandrel or collar 32 of the weapon grip assembly 16 of the subject invention is positioned to operatively unite the handle 22 with the base assembly 20, namely, engage or receive the clamp end 40 of the post 38 and the clamps 24 themselves.
  • the mandrel 32 preferably has upper 84 and lower 86 portions, the lower portion 86 being received or seated upon the top of the handle 22, the upper portion 84 receiving or seating the clamp end 40 of the post 38, and engaging the clamps 24.
  • the mandrel 32 is generally received upon the post 38 of the base assembly 20, see e.g., FIGS.
  • the mandrel 32 is preferably fabricated from aluminum, and is hard-coat anodized in black.
  • the upper portion 84 of the mandrel 32 includes at least one set of opposingly paired walls 88, primary walls for the sake of the discussion, between which extends a "floor” 90 (i.e., the walls 88 upwardly extend from the floor 90).
  • the upper portion 84 of the mandrel 32 includes a further set of opposingly paired walls, namely, secondary walls 92.
  • the floor 90 which includes a thru hole or aperture for receipt of the post 38 of the base assembly 20, in combination with the upstanding walls 88, 92, effectively "house” the clamp end 40 of the of the post 38, and thereby protect the pivot linkage of the clamps 24 with the post 38 (compare FIGS. 2 or 3 with FIG. 4) .
  • a sealed interface between the mandrel 32 and the post 38 of the base assembly 20 is advantageous, and achieved via the imposition of a o-ring 94, which is received about the post 38 adjacent the clamp end 40, between the clamp end 40 of the post 38 and the floor 90 of the upper portion 84 of the mandrel 32. This seal helps assure that fluids or other contaminants do not enter or migrate into the handle 22.
  • the upper portion 84 of the mandrel 32 preferably includes apertures 96 to facilitate egress of debris which might otherwise collect within the upper portion 84 thereof.
  • Each of the primary walls 88 of the upper portion 84 of the mandrel 32 preferably include a profiled (e.g., beveled) top edge 98 which defines a point of contact (i.e., a contact line or surface) for and/or between the mandrel 32, namely the upper portion 84 thereof, and each of the clamps 24.
  • the clamps 24 of the base assembly 20 pivotingly respond to axial positioning of the mandrel 32 relative to the post 38 of the base assembly 20.
  • the alignment and retention mechanism 34 of the subject invention ensures proper positioning of the mandrel 32 on the post 38 while limiting vertical or axial travel with respect thereto, such that the primary walls 88 of the upper portion 84 of the mandrel 32 are at all times positioned to underlay and ultimately engage the clamps 24 of the base assembly 20.
  • the alignment and retention mechanism 34 generally includes a detent assembly 100, namely a detent pin 102 and compression spring 104, carried by the post 38, more particularly the clamp end 40 of the post 38.
  • the detent pin 102 which preferably has a radiused free end 106, is maintained in an extended position by the force of the compression spring 104.
  • the detent pin 102 is held captive by a wide round base 108, upon which the spring 104 acts, which cannot fit through a hole 100 from which the radiused free end 106 of the detent pin 102 extends or protrudes.
  • the compression spring 104 is retained within the clamp end 40 of the post 38 by a threaded set screw 112, preferable further secured using thread locking compound as is well know.
  • the radiused free end 106 of the detent pin 102 of the alignment and retention mechanism 34 biasingly extends from the bore 110, beyond a lateral surface 114 of one of the opposing upstanding wall segments 54 of the clamp end 40 of the post 38.
  • the upper portion 84 of the mandrel is adapted to lockingly receive the detent pin 102.
  • one of the secondary walls 92 of the upper portion 84 of the mandrel 32 includes an aperture or slot 116 therethrough for receipt of the detent pin 102, the travel of the mandrel 32 relative to the base assembly 20 being thereby limited to the geometry or configuration of the slot 116.
  • An upper edge of the subject secondary wall 92 is delimited by a ramped surface 119 which, upon fitting the mandrel 32 upon the post 38, momentarily compresses the detent pin 102 for subsequent biased extension, and therefore positioning into a capture within the slot 16.
  • An integral tool 120 is preferably, but not necessarily, provided as part of the base assembly 20 to actuate the detent pin 102 (i.e., compress the pin 102, i.e. the radiused free end 106 thereof, into the bore) in furtherance of removing the mandrel 32 from the base assembly 20.
  • the detent pin tool 120 is adapted to be reversibly received within an axial bore 122 of the post 38 as shown.
  • the lower portion 86 of the mandrel 32 which includes a wall 124 downwardly extending from the upper portion 84 of the mandrel 32, essentially receives a top portion 126 of the handle 22.
  • the wall 124 of the lower portion 86 of the mandrel 32 which is circumferentially configured to cooperatively engage (i.e., encircle) the top or upper portion 126 of the handle 22, depends from the upper portion 84 of the mandrel 32 such that the "underside" of the floor 90 of the upper portion 84 of the mandrel 32, in combination with the wall 124 of the lower portion 86 thereof, defines a space into which the top of the handle 126 is received.
  • the latching assembly 36 Integral with the mandrel 32 is the latching assembly 36 for reversibly securing the subject weapon grip assembly to a weapon system.
  • the latching assembly or system 36 preferably, but not necessarily (see also FIGS. 13 & 14), includes a detent pin 128 having a chisel tip 130, a compression spring 132 for biasing the pin 128, and an actuator (e.g., stud 134) extending from the detent pin 128 (FIGS. 7 & 8) .
  • a vertical bore 136 of the mandrel 32 receives the spring 132 and detent pin 128 for biasing the pin 128, more particularly the chisel tip 130, toward the top of the handle 126 which is adapted to selectively (i.e., indexingly) receive same.
  • the wall 124 of the lower portion 86 of the mandrel 32 includes an aperture or slot 138 through which extends a portion of the actuator (i.e., a shaft 140 of the stud 134 passes through the aperture 138 for threaded engagement within a threaded side bore of the detent pin 128).
  • the aperture 138 e.g., a vertically oriented oval or the like) permits vertical travel of the actuator 134, and therefore detent pin 128.
  • the actuator 134 is positioned for easy thumb manipulation in furtherance of disengagement of the chisel tip 130 of detent pin 128 from the top portion 126 of the handle 22.
  • the handle or hand grip 22 of the subject weapon grip assembly is generally configured so as to comfortably “fit” a typical user's hand, even when using gloves. It is essential that the handle be readily grasped in a variety of environmental conditions.
  • the handle is preferably fabricated from a copolymer acetal resin, more particularly, a copolymer acetal resin marketed by E . I . Du Pont De Nemours under the Delrin® mark, due to its superior physical and manufacturing characteristics. As is readily appreciated with reference to FIGS.
  • the handle 22 generally has a round cross section, preferably, but not necessarily, a non-uniform circular cross section throughout a length thereof.
  • An exterior surface 144 extends between opposing ends of the handle, namely, the free (i.e., top 146 and bottom 148) ends thereof, circumferentially extending longitudinally about a longitudinal axis of the handle.
  • the handle 22 further preferably includes discrete upper 150 and lower 152 compartments, approximately corresponding to upper 126 and lower 154 handle portions.
  • the upper compartment 156 (e.g., a bore) is accessible at the top end 146 of the handle 22 (FIG.
  • the lower 154 portion of the handle 22 is preferably uniform in dimension throughout its length, and includes grooves in the exterior surface 144 thereof, more particularly, spaced apart circumferential grooves 158 as shown, e.g., FIG. 5. It should be noted that alternate surface adaptations in the lower handle portion 154, to facilitate sure comfortable hand gripping, are readily appreciated, well know, and contemplated in the context of the subject invention.
  • the upper portion 126 of the handle 22 is advantageously of non-uniform dimension throughout its length, more particularly, and with respect to the longitudinal axis of the handle 22 and the lower handle portion 154, a radius of the handle 22 initially upwardly decreases, then upwardly increases, terminating in a rounded top edge 160 for the handle 22 (FIG. 5) .
  • the subject configuration more particularly, that portion of the handle 22 received within the lower portion 86 of the mandrel 32 (see FIGS. 5-7), provides mechanical advantages in furtherance of attachment of the assembly to a weapon.
  • the top of the handle 126 is adapted to preferably receive a subassembly of the weapon grip assembly, namely, the mandrel 32 in combination with the base assembly 20.
  • the upper compartment 150 (e.g., an axial or longitudinal bore) receives the post 38 of the base assembly 20 therein, more particularly, the threads of the post 38 are received for integration a threaded portion 162 of the bore 150, more particularly, a Helicoil® threaded metal insert 164, provided to assure a long term reliable interface between the base assembly 20 and the handle 22.
  • the bore 150 is of a sufficient length to accommodate the operative travel length of the post 38 within the handle 22 (i.e., the post 38 may be drawn into the handle 22, for securing the clamps 24 about a portion of the weapon, without bottoming out) .
  • the top edge 160 of the handle 22 includes spaced apart notches 166 for receipt of the chisel tip 130 of the detent pin 128 of the latching mechanism 36. Rotation of the handle 22 about the post 38, (i.e.
  • the latching mechanism 36 implicates the latching mechanism 36: as the top perimeter edge 160 of the handle 22 contacts the detent pin 128 with "forward" rotation of the handle (i.e., tightening), a ramp surface 168 of the chisel tip 130 permits the detent pin 128 to easily move from one notch to another of the spaced apart notches 166 (i.e., ride over the surfaces delimiting the notches); manipulation of the actuator 134 of the latching mechanism 34 is required to overcome the bias force supplied to the detent pin 128, and thereby permit "reverse" rotation of the handle 22 (i.e., loosening) relative to the subassembly, and thus the weapon grip assembly (FIGS. 7 & 8) .
  • the lower portion 154 of the handle 22 is adapted to receive a cover or cap 156 which is reversibly receivable at the free end 148 of the handle 22 (FIG. 4), more particularly a mouth 170 of the lower compartment 152 of the handle 22.
  • the cap 156 generally includes a head 172 and stem 174 extending from a surface thereof, the stem 174 bearing threads or other means of integration with the handle 22 (FIGS. 4, 5/6) .
  • An o-ring 176 is advantageously received upon the threaded stem 174 of the cap 156 so as to sealing seat the head 172 of the cap 156 relative to the mouth 170 of the lower compartment 152 of the handle 22.
  • the head 172 of the cap 156 is preferably configured so as to generally conform with the configuration of the free end 148 of the handle 22 (FIG. 5 or 6), thereby providing a seamless or pseudo-seamless exterior finish for a base of the handle 22 (i.e., the interface of the free end 148 of the handle 22 with the cap 156 does not form an abrupt exterior contour, nor does the head 172 of the cap 156 include any protrusions) .
  • the head 172 of the cap 156 is generally cylindrical, having a diameter substantially equivalent to that of the free end 148 of the handle 22.
  • the cap head 172 advantageously includes slots, grooves, dimples or other surface features (i.e., indentations) .
  • an exterior surface of the cap head 172 might include crossing slots which can be used by the operator to open (i.e., release) the cap via a 40mm cartridge case, knife or coin if necessary, or may further or alternately include fluted edge portions (i.e., the union of the exterior surface with the sidewall of the cap head may form an irregular edge which is easily grasped) to aid the operator in gripping the cap for affixation/removal .
  • the head 172 of the cap 156 preferably, but not necessarily, includes a latching mechanism 178, functionally equivalent to the latching mechanism 36, previously discussed, which prevents unwanted loosening of the cap 156 from the handle 22 (FIGS. 4 & 5) .
  • the cap latch mechanism 178 preferably includes a pawl 180 which rotates or pivots about a pin 182 which is received and retained within a transverse bore 184 of the head 172 of the cap 156.
  • the pawl 180 is biased by a compression spring 186 located under a distal portion thereof, namely a free end 190, which is opposite a latch end 192 of the pawl.
  • the spring 186 holds the latch end 192 of the pawl 180 in a "latched" position with respect to the free end 148 of the handle 22.
  • the cap head 172 is adapted, e.g., grooved, channeled, slotted, etc., to receive the pawl 180 of the latch mechanism 178 such that in a static (i.e. locked condition) , no part thereof extends beyond an exterior surface of the cap head 172 (FIG. 1 or FIGS. 5/6) .
  • the cap head 172 includes a notch or break 193 in its perimeter (i.e., sidewall) for seating or otherwise receiving the latch end 192 of the pawl 180.
  • the latch end 192 is dimensioned so as to exceed the "thickness" of the cap head 172 (i.e., the height of the sidewall) such that a portion thereof mates or cooperatively engages the free end 148 of the handle 22.
  • the handle 22 includes mating slots or notches 194 (i.e., castellations) into which the latch end 192 of the pawl 180 may be received so as to provide for positive engagement of the pawl 180 with the handle 22, thereby preventing the movement (i.e., rotation) of the end cap 156 in one direction, yet providing unrestricted movement in the other direction.
  • the mouth 170 of the lower compartment 152 of the handle 22 preferably includes spaced apart notches 194 (i.e., material has been removed so as to form a squared crown edge) for indexed receipt of the latch end 192 of the pawl 180 therein.
  • spaced apart notches 194 i.e., material has been removed so as to form a squared crown edge
  • the latch end 192 of the pawl 180 ratchets past/over the notches 194 of the free end 148 of the handle 22, until the operator stops turning the end cap 156, and the latch end 192 engages an aligned or registered handle notch or slot of the spaced apart notches or slots 194 (FIG. 5 or 6) .
  • Such engagement by the latch pawl 180 prevents the cap from being turned in a loosening direction inadvertently.
  • the lower compartment 152 of the handle 22 defines a stowage space 196 for the weapon grip assembly of the subject invention.
  • the lower portion 154 of the inside of the handle 22 is hollow, and is preferably, but not necessarily, specifically contoured to provide additional functionality.
  • the depth of the storage space 196 as well as the contour of the interior wall surface, within the lower compartment thereof, have been specifically sized to accommodate either two (2) AA batteries 198 (FIG. 5, solid line, and FIG. 10), or two (2) DL123 batteries 200 (FIG. 5, broken line) .
  • Other items, including but not limited to gum, cigarettes, matches, etc. also fit into the storage space 196 in lieu of batteries.
  • a spring is further provided within the stowage space 196 to bias the compartment contents against the walls defining same.
  • any content shifting is to be avoided, primarily to avoid rattling or other noise which would give away the user's position, motion or otherwise be a distraction.
  • FIGS. 5 & 6 there is illustrated the preferred embodiment of the subject weapon grip assembly 16 ready for affixation to a portion of a weapon (e.g. a grenade launcher, more particularly, a M203 40mm launcher 28) and affixed to the weapon, respectively.
  • the launcher 28 includes a barrel 72 attached to a receiver 73.
  • a barrel handguard 30 substantially surrounds the launcher barrel 72 and cooperatively engages a portion of the receiver 73.
  • the launcher handguard 30 has a characteristically "ribbed" exterior surface, i.e., the surface comprises a plurality of ribs or ridges 68 spaced apart by a plurality of flats 70.
  • the grenade launcher barrel 72 further, characteristically, includes a handguard locator rivet 76, and a pair of cartridge retainer rivets 77 (FIG. 1) .
  • a static or standby condition for the weapon grip assembly has the clamps or jaws 24 in a biasingly open position for receipt of the launcher barrel 72 (FIG. 5) .
  • the handle 22 is minimally integrated with the base assembly 20, more particularly, the subassembly of the mandrel 32 and base assembly 20.
  • the mandrel 32 of FIG. 5 has not yet been positioned to overcome the bias acting upon the clamps 24 to effectively pivot same for closure about the barrel 72 (FIG. 6) .
  • the post 38 of the base assembly 20 is drawn into the handle 22, i.e., as the handle 22 is rotated clockwise thereabout, the mandrel 32 "rides" upwardly along with the handle 22 relative to the post 38, more generally, the base assembly 20, to operatively engage the clamps 24 for closure.
  • the weapon receiving surface 26 of the clamp 24 receives a select rib 82 of the launcher handguard 30.
  • the free end 44 of the clamp 24 meets up with (i.e., is positioned adjacent) the handguard 30 at its union with the receiver 73 such that rotation of the weapon grip assembly 16 about the barrel 72 is prohibited.
  • Longitudinal motion e.g., pivoting with respect to the launcher barrel length
  • a key feature of the design of the preferred embodiment of the subject invention is to observe that once tightened, even lightly, it is impossible to pull the weapon grip assembly off the handguard of a weapon at angles near 90° because the open ends of the clamps wrap closely around the handguard, above its maximum diameter. This means that inward pressure need not be excessively exerted on the handguard to make the grip work (i.e., no vise-like clasping is necessary) , only an "interference" fit of the clamps around the diameter of the handguard is necessary to prevent the weapon grip assembly from disengagement from the handguard.
  • the tightness achieved by turning the handle is only used to force the grip clamps to remain close to the handguard contours in spite of being pulled by the operator in normal use.
  • Movement of the weapon grip assembly circularly around or about the handguard is controlled by the fit of the free- end 44 of the clamps 24 to the vertical lip 64 of the handguard 30 (i.e., the handguard 30/receiver 73 interface) .
  • the subject weapon grip assembly 16 is shown equipped with an accessory, namely a flashlight assembly 204. It should be understood that a variety of known accessory items including, but not limited to, a flashlight are advantageously supported or otherwise carried by the subject weapon grip assembly.
  • a channeled bracket 206 is contemplated for affixation, using threaded fasteners 207, to an exterior surface 85 of the upper portion 84 of the mandrel 32, more particularly, one of the opposingly paired primary walls 88 thereof.
  • accessories may be mounted on either or both sides of the weapon grip assembly, at an operators preference.
  • the flashlight assembly 204 includes a flashlight 208 having a remotely operable power switch (i.e.
  • the spring clip 218 generally includes resilient members 220, extending from a base 222, which are conformingly received within the grooves 158 of the lower portion 154 of the handle 22.
  • An exterior surface 224 of the base 222 of the spring clip 218 includes a portion of a hook and loop fastener system, or other reversible fixation means, so as to reversibly hold the pad switch 210 extending from the flashlight 208.
  • the weapon grip assembly provides advantageous location of the flashlight, and further provides advantageous positioning of the switch for supremely efficient and easy actuation of same and allows rotation of the handle of the grip assembly so as to remove same from the weapon without disassembly of flashlight assembly components (i.e., the switch) .
  • FIGS. 13 & 14 there are shown alternate contemplated embodiments, as FIG. 4, of a weapon grip assembly for reversibly securing a hand hold to a forward portion of a weapon, namely a handguard.
  • the subject further embodiments are not intended to be in any way limiting or exhaustive of the further device styles, and/or features contemplated. It is again noted that like numerals are used to designate like parts .
  • the alignment and retention mechanism 34 for the mandrel 32, relative to the base assembly 20 of the device of FIG. 4, has been omitted.
  • the mandrel 32 of the subject embodiment need not include an upper portion 84 having the secondary walls 92 of the previous embodiment (FIG. 4), instead, the upper portion 84 of the mandrel 32 need only include a single set of opposingly paired walls 88 (i.e., primary walls as previously discussed, again, note FIG. 4) .
  • the mandrel 32 is preferably shaped and sized to fit the profiles of the top end 146 of the handle 22, the clamp end 40 of the post 38, and the outside surface 42 of the clamps 24.
  • the fit of the mandrel 32 to the handle 22 is sized to cover the entire top end 146 of the handle 22, and match its outer diameter with a smooth transition since an operator' s hand is likely to be in contact with this area of the assembly.
  • the underside of the lower portion 86 of the mandrel 32 is smooth, as it is intended to closely and tightly contact the top end 146 of the handle 22 when the weapon grip assembly is fitted to the barrel handguard.
  • the upper contoured edge or surface 78 of the clamp end 40 of the post 38 in combination with the clamps 24 themselves, effectively provide for an interference fit for the weapon grip assembly, namely, by partially encircling a select handguard rib 82, "filling" the flats 70 immediately adjacent the selected rib 82, and abutting the ribs 80 adjacent the select rib 82 (FIG. 9).
  • the remaining structures of the device of FIG. 13, including their interrelationships, are readily appreciated by comparison with the FIG. 4, and reference to the discussion with respect thereto. With regard to the device of FIG. 14, it too generally omits the alignment and retention mechanism 34 for the mandrel 32 (FIG.
  • the subject device includes an alternate latching assembly 230 for reversibly securing the subject weapon grip assembly to a weapon, and an alternate interface between or for the handle 22 and base assembly 20.
  • the handle 22 provides positive engagement of the latching assembly 230, and the mandrel 32/base assembly 20 thereby, with the handle 22. Movement in one direction (i.e., a handle loosening direction) is prevented or thereby prohibited, whereas movement of the handle in the other direction (i.e., a handle tightening direction) is permitted or unrestricted.
  • the pawl 232 of the latching assembly 230 rotates around the pin 234 which is carried and retained by the mandrel 32, for instance, by fitting the pin 234 into a hole 242 in the lower portion 86 of the mandrel 32.
  • the pawl 232 is biased by the torsion spring 236 wrapped around portions of the pin 234 (i.e., on both or opposite sides of the pawl 232) .
  • the latch end 240 of the pawl 232 is held (i.e., biased) in the "latched" position (i.e., the latch end 240 of the pawl 232 pivots until received within a slot of the mating slots 238 of the handle 22) .
  • the pawl 232 ratchets past the handle slots 238 until handle rotation ceases, the latch end 240 of the pawl 232 engaging the handle slot which most closely lines up or registers therewith.
  • This engagement by the latch pawl 232 prevents the handle 22 from being turned in a loosening direction loosening. The operator can be confident that the system will not disengage without specific intended action.
  • the operator depresses the upper exterior surface of the pawl 232, e.g., the knurled area 244 shown, against the spring pressure, while rotating the handle in the handle loosening direction.
  • the handle 22 preferably includes an aperture 150 (i.e., a bore) in a top surface 146 thereof.
  • Fastening means e.g., a threaded fastener 248 in combination with a washer 250 as show, operatively unite the handle 22 to the subassembly, more particularly, the threaded fastener 248 is . received within an axial bore of the post 38 which is threadingly received within the insert 246.
  • the insert 246 assures that operators will not damage the grip handle 22 with the base assembly threaded stud 38 should the handle be over-tightened during attachment of the weapon grip assembly to the weapon.
  • the depth of the handle bore 150 allows the stud 38 to be inserted into the handle 22 as needed for proper operation of the clamps 24.
  • the post 38 of the base assembly 20 is threaded to allow it to be drawn into the handle 22 by rotation thereof.
  • the thread pitch on the stud 38 has been specifically chosen such that it permits the operator to completely close the clamps around the barrel handguard, from a clamp opening width wide enough to fit over the handguard rib, in about one turn of the handle. This is advantageous so as to allow easy and quick operation.
  • the imparted pitch also allows the handle to be tightened by the strongest operator without fear of stripping the threads, while retaining the tightness set by the operator without the need for a locking mechanism.
  • the base threaded stud 38 preferably has a keyway, not shown, running the length thereof.
  • the keyway allows accessory fittings, attached or attachable to the device upon a bracket received upon the post 38, to maintain a proper alignment independent of the handle position or motion (e.g., it allows a flashlight or aiming laser bracket to remain pointed "forward" at all times while the handle 22 is rotated) .
  • Such bracket can be used so as to position an accessory on either lateral (i.e., left or right) surface of the handle, and more than one bracket can be stacked so that ancillary or accessory equipment can be used on both the right and left sides simultaneously.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

La présente invention concerne un ensemble poignée pour une arme destiné à être fixé sur une partie avant d'une arme. Cet ensemble poignée comprend un ensemble formant base supporté pour être fonctionnellement couplé au moyen d'une poignée. L'ensemble formant base comprend des fixations prévues pour être fixées sur une partie avant de l'arme et comporte également un élément tubulaire présentant une extrémité de fixation prévue pour retenir les fixations de manière à pouvoir pivoter par rapport à ces dernières. L'élément tubulaire de l'ensemble formant base se loge dans un alésage de la poignée, un mandrin étant intercalé entre la poignée et les fixations de l'ensemble formant base. Lorsque l'ensemble formant base est tiré dans la poignée, par rotation de la poignée autour de l'élément tubulaire de l'ensemble formant base, le mandrin reçoit l'extrémité de fixation de l'élément tubulaire, une surface supérieure libre de ce dernier se trouve alors en contact avec les fixations pour assurer la fermeture par pivotement autour d'une partie de l'arme afin de fixer l'ensemble poignée pour arme sur cette dernière.
PCT/US2003/035601 2003-08-05 2003-11-06 Ensemble poignee pour une arme WO2005017439A2 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US10/567,264 US20070271832A1 (en) 2003-08-05 2003-11-06 Weapon Grip Assembly
AU2003291376A AU2003291376A1 (en) 2003-08-05 2003-11-06 Weapon grip assembly
PCT/US2004/003760 WO2005019762A2 (fr) 2003-08-05 2004-02-10 Ensemble de crosse d'arme
AU2004266298A AU2004266298C1 (en) 2003-08-05 2004-02-10 Weapon grip assembly
CA2534847A CA2534847C (fr) 2003-08-05 2004-02-10 Ensemble de crosse d'arme
BRPI0412534-7A BRPI0412534A (pt) 2003-08-05 2004-02-10 montagem da garra de arma
MXPA06001447A MXPA06001447A (es) 2003-08-05 2004-02-10 Montaje de sujecion de arma.
EP04775767A EP1654512A4 (fr) 2003-08-05 2004-02-10 Ensemble de crosse d'arme
NZ545384A NZ545384A (en) 2003-08-05 2004-02-10 Weapon grip assembly with collar between support handle and pivotable collars
SG200800890-6A SG165173A1 (en) 2003-08-05 2004-02-10 Weapon grip assembly
CL200402000A CL2004002000A1 (es) 2003-08-05 2004-08-05 Conjunto de empunadura de arma que comprende una base de clavija recibida por una empunadura que tiene un compartimiento de almacenaje con un extremo libre, con clavijas que se apoyan sobre dicha base de clavija para permitir un movimiento de pivote,
IL173537A IL173537A (en) 2003-08-05 2006-02-05 Weapon hand grip outer assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49250903P 2003-08-05 2003-08-05
US60/492,509 2003-08-05

Publications (2)

Publication Number Publication Date
WO2005017439A2 true WO2005017439A2 (fr) 2005-02-24
WO2005017439A3 WO2005017439A3 (fr) 2005-07-28

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PCT/US2003/035601 WO2005017439A2 (fr) 2003-08-05 2003-11-06 Ensemble poignee pour une arme

Country Status (10)

Country Link
US (1) US20070271832A1 (fr)
KR (1) KR101121496B1 (fr)
AU (1) AU2003291376A1 (fr)
BR (1) BRPI0412534A (fr)
CL (1) CL2004002000A1 (fr)
IL (1) IL173537A (fr)
MX (1) MXPA06001447A (fr)
NZ (1) NZ545384A (fr)
SG (1) SG165173A1 (fr)
WO (1) WO2005017439A2 (fr)

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IL173537A (en) 2012-02-29
AU2003291376A1 (en) 2005-03-07
CL2004002000A1 (es) 2005-05-27
MXPA06001447A (es) 2006-08-25
AU2003291376A8 (en) 2005-03-07
SG165173A1 (en) 2010-10-28
KR20070017933A (ko) 2007-02-13
BRPI0412534A (pt) 2006-09-19
NZ545384A (en) 2009-04-30
IL173537A0 (en) 2006-07-05
WO2005017439A3 (fr) 2005-07-28
US20070271832A1 (en) 2007-11-29
KR101121496B1 (ko) 2012-04-17

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