EP0163129A1 - Système de verrouillage par culasse cylindrique pour fusil à répétition - Google Patents

Système de verrouillage par culasse cylindrique pour fusil à répétition Download PDF

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Publication number
EP0163129A1
EP0163129A1 EP85105023A EP85105023A EP0163129A1 EP 0163129 A1 EP0163129 A1 EP 0163129A1 EP 85105023 A EP85105023 A EP 85105023A EP 85105023 A EP85105023 A EP 85105023A EP 0163129 A1 EP0163129 A1 EP 0163129A1
Authority
EP
European Patent Office
Prior art keywords
bolt
handle
mainspring
firing pin
cylinder
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.)
Withdrawn
Application number
EP85105023A
Other languages
German (de)
English (en)
Inventor
Carl Oskar Lennart Nilsson
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.)
NILSSON CARL O LENNART
Original Assignee
NILSSON CARL O LENNART
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
Priority claimed from SE8402574A external-priority patent/SE440276B/sv
Priority claimed from SE8500044A external-priority patent/SE8500044D0/xx
Application filed by NILSSON CARL O LENNART filed Critical NILSSON CARL O LENNART
Publication of EP0163129A1 publication Critical patent/EP0163129A1/fr
Withdrawn legal-status Critical Current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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/34—Cocking mechanisms
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/30—Multiple safeties, i.e. one safety element acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel
    • F41A17/32—Multiple safeties, i.e. one safety element acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel the other element being the breech-block or bolt
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/36—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in block-action guns
    • F41A19/37—Cocking mechanisms
    • 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
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/18—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated
    • F41A3/20—Straight-pull operated bolt locks, i.e. the operating hand effecting only a straight movement parallel to the barrel axis

Definitions

  • the invention relates to a cylinder bolt mechanism in a repeating rifle with receiver and bolt, comprising a bolt body with a mainspring and a firing pin, a rotatable bolt head, a handle, and locking means for the bolt situated in the receiver and interacting with the bolt head. More specifically the invention relates to a cylinder bolt mechanism of the type where the handle movement is straight, of the so called "straight pull action" type.
  • the object of the invention is to provide a firearm system of the kind described in the introductory statement above in which the mainspring is compressed when the gun is opened. Another object is to provide a firearm system of a very uncomplicated construction which is in this respect also an improvement of my earlier firearm system, described in the aforementioned international patent application.
  • the handle in the form of a lever mechanism, pivoting in a plane about a hinge, the rotational axis of which is perpendicular to a plane which coincides with the centre axis of the firing pin, and by providing means of transmission to transform the pivoting movement of the handle about said hinge into a rotational movement of the bolt head about the centre axis of the firing pin.
  • Another object of the invention is to prevent unauthorized use of the gun by blocking its mechanism with a lock and key. This object may be realized by the interaction of said means of transmission and the firing pin nut with a cylinder lock arranged in the latter.
  • the bolt 1 consists of the following main parts, see Fig. 3: A bolt body 5 with a mechanism housing 6, covered by a lid 7, a bolt neck 8, rotatable in the bolt body 5, with a bolt head 9, a mainspring tube 10 with a firing pin 11 movable therein, a firing pin nut 12, a hadle 13, a gear transmission arrangement 14 and a cylinder lock 15.
  • the bolt body 5 consists of a cylinder, the mechanism housing 6 being an integral part of this cylinder, constituting a projection thereon. More specifically, the mechanism housing 6, being generally a parallelepiped, extends at an angle upwards to the right in relation to a vertical plane through the centre line of the barrel. The inclination of the mechanism housing 6 to the vertical plane is about 55°, when the gun is directed normally.
  • the bolt body 5 is provided with a central bore for the bolt neck 8, the mainspring tube 10 and the firing pin nut 12.
  • the bolt body 5 is provided with three claws 16, corresponding to three claw slots 17 between three studs 18, directed radially inwards in the locking ring 4 and forming a claw coupling which locks the ring 4 in the position determined by the bolt body 5 in a way known per se.
  • the design of these parts is described in my aforesaid international patent application WO/8302153.
  • the guide 20 is in the form of a groove in the housing, open at both long sides of the housing 6.
  • the guiding groove 20 is bounded at the front side by a wall 22 and at the back by the housing body 23.
  • the handle 13 is designed as a two-arm lever.
  • the longer lever arm 26 extends from the bolt body 5 and has a grip 27.
  • the shorter lever arm has been designated 28 and extends forward approximately at a right angle to the longer lever arm 26, in the form of a tooth 28 which fits in a slot 29 in the top side of the rack bar 21.
  • a bearing arrangement between the two lever arms of the handle interacts with the swivel pin 25 and has been designated 30.
  • the handle 13 swivels in a plane perpendicular to the swivel pin 5, the centre axis of which is in turn perpendicular to a plane coinciding with the centre line of the barrel and consequently with the firing pin axis.
  • the swiveling plane of the handle 13 is parallel to said plane through the centre line, said plane being inclined at an angle of 35° to the vertical plane as the guns i held in a normal position aiming forward.
  • the handle 13 can be turned through an angle of about 35° from a front position, in which the handle is directed directly outwards from the mechanism housing 6, and a rear position, in which the handle 13 is directed at an angle rearwards.
  • the front position is bounded by a separating wall 31 between the recess 24 and a longitudinal groove 32 in the housing body 23 along the left side thereof.
  • the rearward movement of the handle is limited by the front edge 33 of a right side wall 34 of the housing body 23.
  • the two end positions are additionally determined by a stud 35 between the opening 36 in the side wall 34 accomodating the handle 13 and the guide 20.
  • In the front wall 22 there is a front dovetail slot 37 and in the housing body 23 there is a rear dovetail slot 38 to accomodate dovetails 37' and 38', respectively, on the bottom side of the lid 7.
  • the longitudinal groove 32 along the housing body 23 forms a guide for a rotation stop 40.
  • This is in the form of a bar equipped with an extension 41 directed sideways and guided in the groove 32, extending out through an opening in the left side wall 43 of the housing body 23.
  • a spiral spring 44 (rotation stop spring) arranged to press the rotation stop 40 forward.
  • the front tip 45 of the rotation stop 40 extends past the rear edge of the rack bar guide 20 into a cut 66 in the rack bar 21, thus when in this position preventing the rack bar 21 from moving from a right position to a left position.
  • the extension 41 in this position is flush against the front edge of the opening 42, see Fig. 15.
  • the rack bar 21 When the extension 41 has been pressed back in the opening 42 by a means devised to-this end but not yet described, to the extent that the front tip 45 of the rotation stop has passed the rear edge of the rack bar guide 20 when moving backwards, the rack bar 21 may be moved to the left in the guide 20. Left in this connection signifies at an angle upwards leftwards and right signifies at an angle downwards rightwards, with respect to Fig. 1.
  • the rack bar 21, the handle 13, the rotation stop 40 and the rotation stop spring 44 are locked in their respective places by the led 7.
  • a guide slot 47 On the bottom side of the bolt body 5 there is a guide slot 47, see Fig. 8, to accomodate the sear and at the rear end of the bolt body 5 there is a first recess 48, coinciding with the guide slot 47, and a second recess 49 at the left side of the bolt body 5.
  • the firing pin 11 extends through the mainspring tube 10 and is screwed to the firing pin nut 12 at its rear end.
  • the nut is provided with a central bore 50 to accomodate the cylinder lock 15, see Figs. 5, 6, 7, and 9.
  • a key hole has been designated 51, a lock plunger 52, and a key 67.
  • the lock plunger 52 may be turned in a slot 53 in the firing pin nut 12 and a slot 54 in the inside of the bolt body 5 from a position wherein the lock plunger 52 is situated in the slot 49 in front of a specially arranged tooth 55 at the rear end of the firing pin nut, see Fig.
  • the firing pin assembly (firing pin, firing pin nut, and mainspring tube) may be moved into and out of the bolt body as the lock plunger 52 moves in or out, respectively, through the recess 49.
  • the locked position however, the firing pin assembly is locked in the bolt body 5 by the lock plunger 52 being confined in the slot 54 on the inside of the bolt body 5.
  • the slot 54 on the inside of the bolt body 5 is situated in that part of the bolt body 5 which is near the lock plunger 52 when the lock plunger 52 is in its forward position relative to the bolt body, in other words when the mainspring 56 is not compressed.
  • the mainspring 56 has been compressed, the firing pin nut 12 has been moved rearwards relative to the mainspring tube 10 in a manner to be described later. In this position, the gun cannot be locked, since the lock plunger 52 when in this position no longer coincides with the slot 54 on the inside of the bolt body 5.
  • the front end of the mainspring tube 10 is threaded, so that the firing pin assembly depicted in Fig. 4 may be screwed to the bolt neck 8.
  • the former is entered into the bolt body 5 from the front end, while the firing pin assembly is entered into the bolt body 5 from the rear, and the two parts are then screwed together inside the bolt body.
  • the rear part 58 of the mainspring tube 10 has the same external diameter as the firing pin nut 12.
  • One of its two halves is designed as a sector of a pinion 59. This sector is exposed and extends up through an opening 60 in the bolt body 5 in the area of the rack bar guide 20, in such a way that the pinion sector can interact with the teeth 61 on the bottom side of the rack bar 21, see Figs. 10 and 12.
  • the rear part 58 of the mainspring tube 10 is provided with a compression cam 62 corresponding to and interacting with a compression cam 63 on the firing pin nut 12, so that as the mainspring tube 10 is made to rotate about its axis by means of the transmission 14 (the firing pin nut 12 is barred from turning by the sear catch 64 and the tooth 55 entering their respective slots 48 and 49), the two compression cams will slide against one another whereby the firing pin nut 12 will be pressed rearwards, the mainspring 56 simultaneously being compressed in the mainspring tube 10.
  • the bolt 1 may be moved rearwards in the receiver 2 to allow a new cartridge to be entered into the cartridge chamber.
  • the handle 13 remains in its rearmost position, see Fig. 15.
  • the bolt head is introduced into the locking chamber in the rear part of the barrel (see my international patent application W083/02153), the claws 16 on the bolt body entering the claw slots 17 in the locking ring 4.
  • the handle 13 is prevented from swiveling forwards by the front tip 45 of the rotation stop 40 extending into the rack bar guide 20 and locking the rack bar 21. Only at the very end of the procedure, the rotation stop 40 is moved aside as the extension 41 hits a stop 65 at the left side of the receiver 2, see Fig. 2, thereby being moved rearwards in the opening 42.
  • the handle 13 may now be moved forward, turning about the swivel pin 25, and via the rack transmission 14 move the rack bar 31 leftwards, turning the mainspring tube 10, the bolt neck 8, and the bolt head 9, the bolt head being moved into locking position in front of the locking ring 4. In this position, the mainspring is already compressed, since it was compressed when the gun was opened.
  • the firing pin nut fitted with a cylinder lock shown in Fig. 17 comprises a lock sleeve 120 with a compression cam or safety tooth 63', a dog sleeve 121 with a locking ball 52', resting in a hole 129 of smaller diameter than the ball 52', a cylinder lock 15', a steel ring 150 and a socket 125 with a sear catch 64'.
  • the lock sleeve 120 has a threaded bore 122 to accomodate the firing pin.
  • In the wall of the lock sleeve there is a hole 123 for the locking ball 52', the hole diameter being slightly larger than that of the ball.
  • the rear part of the lock sleeve 120 is designed as four claws 124 to be fitted over the cylinder lock 15', the outside of which is provided with four splines 151. In Fig. 19 one of these spline keys is obscured by the locking ball 52'.
  • the cylinder lock 15' per se is in accordance with pior art and comprises in a known way a finger 152 to be entered into the dog sleeve 121 there to engage said sleeve by means of a pin 153, see Fig. 19.
  • the cylinder lock 15' in accordance with prior art has a key slot 51' coinciding with a slot in the steel ring 150.
  • a notch 126 has been cut to acommodate the compression cam 63' and the side of the socket has a hole 127 for the locking ball 52'.
  • the two holes 123 and 127 of the same size are coaxial.
  • At the rear end of the socket there is an axial hole 128 to acommodate the steel ring 150.
  • the steel ring 150 is placed from the inside in the hole 128, the cylinder lock 15' and the dog sleeve 121 are put into the socket 125, and the lock sleeve 120 is entered between the inside of the socket 125 and the cylinder lock 15', so that the spline keys 151 fit between the claws 124.
  • the assembly is locked by a locking pin, not shown, through the front parts of the socket and lock sleeve walls.
  • the bolt body 5' see Fig. 20, has a recess 48' there is a recess 49 to acommodate the locking ball 52'.
  • the device described with reference to Figs. 16-21 functions as follows.
  • a key is entered in the key slot 51'.
  • the locking ball 52' is lifted out of the hole 129 in the dog sleeve 121, as the finger 152 and hence the tubular dog sleeve 121 is turned 90° about the centre axis.
  • the locking ball 52' is pressed radially outwards through the holes 123 and 127 in the lock sleeve and the socket 125, respectively, to enter the recess 49' in the bolt body 5', see Fig. 20.
  • this improvement comprises a modification of the rack bar, designated by reference numeral 21', and the shorter lever arm, designated 28'.
  • the lever arm 28' is designed in the form of a sector of a pinion, and the rack bar 21' has been provided with teeth on that part also which faces the lever arm 28'.
  • the bottom side of the rack bar 21' is still provided with teeth 61 interacting with the teeth 59 on the mainspring tube 10, see Fig. 10 of my previous patent application.
EP85105023A 1984-05-14 1985-04-25 Système de verrouillage par culasse cylindrique pour fusil à répétition Withdrawn EP0163129A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8402574A SE440276B (sv) 1984-05-14 1984-05-14 Cylindermekanism av sa kallad "straight pull action", der slagfjedern spenns vid vapnets oppnande
SE8402574 1984-05-14
SE8500044A SE8500044D0 (sv) 1985-01-07 1985-01-07 Anordning vid repetergever ii
SE8500044 1985-01-07

Publications (1)

Publication Number Publication Date
EP0163129A1 true EP0163129A1 (fr) 1985-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105023A Withdrawn EP0163129A1 (fr) 1984-05-14 1985-04-25 Système de verrouillage par culasse cylindrique pour fusil à répétition

Country Status (2)

Country Link
EP (1) EP0163129A1 (fr)
FI (1) FI851895L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001715A1 (fr) * 1996-07-10 1998-01-15 Sqs Security Qube System Ab Dispositif concernant une arme munie d'un magasin
EP2634520A1 (fr) * 2012-02-28 2013-09-04 Dikar S. Coop. Ltda Ensemble culasse pour fusil à répétition avec tête de culasse détachable et dispositif d'impossibilité de montage de l'ensemble de culasse sans sa tête dans le fusil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE406311A (fr) *
FR365139A (fr) * 1906-03-27 1906-09-04 Andrew Howland Russell Perfectionnements apportés aux fusils à verrou
US1545045A (en) * 1924-02-15 1925-07-07 Hoffman Arms Company Firearm
US1568635A (en) * 1925-07-21 1926-01-05 Speer William Clinton Straight-pull bolt-action rifle
US2123111A (en) * 1936-06-16 1938-07-05 Valentine J King Bolt action rifle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE406311A (fr) *
FR365139A (fr) * 1906-03-27 1906-09-04 Andrew Howland Russell Perfectionnements apportés aux fusils à verrou
US1545045A (en) * 1924-02-15 1925-07-07 Hoffman Arms Company Firearm
US1568635A (en) * 1925-07-21 1926-01-05 Speer William Clinton Straight-pull bolt-action rifle
US2123111A (en) * 1936-06-16 1938-07-05 Valentine J King Bolt action rifle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001715A1 (fr) * 1996-07-10 1998-01-15 Sqs Security Qube System Ab Dispositif concernant une arme munie d'un magasin
EP2634520A1 (fr) * 2012-02-28 2013-09-04 Dikar S. Coop. Ltda Ensemble culasse pour fusil à répétition avec tête de culasse détachable et dispositif d'impossibilité de montage de l'ensemble de culasse sans sa tête dans le fusil

Also Published As

Publication number Publication date
FI851895A0 (fi) 1985-05-13
FI851895L (fi) 1985-11-15

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