EP0330579A1 - Vorrichtung zur Verriegelung des Trommelschwenkarms in einem Revolver - Google Patents

Vorrichtung zur Verriegelung des Trommelschwenkarms in einem Revolver Download PDF

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Publication number
EP0330579A1
EP0330579A1 EP89400516A EP89400516A EP0330579A1 EP 0330579 A1 EP0330579 A1 EP 0330579A1 EP 89400516 A EP89400516 A EP 89400516A EP 89400516 A EP89400516 A EP 89400516A EP 0330579 A1 EP0330579 A1 EP 0330579A1
Authority
EP
European Patent Office
Prior art keywords
barrel
pivot
pusher
revolver
axis
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Withdrawn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
EP89400516A
Other languages
English (en)
French (fr)
Inventor
Alain Lechelle
Thierry Guidat
Serge Bruckert
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.)
Matra Manurhin Defense
Original Assignee
Matra Manurhin Defense
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 Matra Manurhin Defense filed Critical Matra Manurhin Defense
Publication of EP0330579A1 publication Critical patent/EP0330579A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C3/00—Pistols, e.g. revolvers
    • F41C3/14—Revolvers

Definitions

  • the present invention relates to the field of revolvers, and more particularly their barrel pivot.
  • the barrel pivot comprises an axis mounted rotating on the carcass of the revolver and being able to tilt parallel to the axis of the barrel between a closed position in which the axis of the barrel is in the plane of symmetry of the revolver and an open position in which the chambers of said barrel are released for loading or ejecting ammunition.
  • the invention relates more specifically to the problem of locking the barrel pivot, in order to maintain this pivot when it is in the closed position.
  • US Patent No. 3,633,302 describes a revolver comprising a sliding plunger mounted on the barrel pivot, and accessible laterally from the same side as that of the barrel tilting.
  • This pusher can slide in a groove of the barrel pivot, and it is subjected to the action of a spring which tends to push it upwards; the upper end of the pusher constitutes a locking lug which is received, in the closed position of the barrel pivot, in a corresponding notch of the carcass (see in particular Figures 6 and 7 of this patent).
  • US Patent No. 1,518,027 illustrates a variant of the previous system, but with a transverse pusher oscillating on an axis carried by the carcass of the revolver.
  • the pusher must simultaneously ensure unlocking and security; in addition, the tolerances must be particularly tight in order to have a correct positioning of the barrel axis, due to the multiplicity of support contacts relating to the barrel pivot in the closed position. Note that, as before, the pusher is accessible laterally from the same side as that of the tilting of the barrel.
  • US Patent No. 274,093 illustrates yet another very old technique, using a double bevel ratchet, constituting a lock, cooperating with the lateral face of the barrel axis: there is therefore no push button actuated with the hand, but this system requires a very powerful support spring to push the lock, so that the solution is unsatisfactory, which explains its rapid abandonment despite an apparent simplicity.
  • the locking mechanism comprises ten parts, for which the tolerances are tight, since it is necessary to simultaneously ensure unlocking and security; we find the uncertainty of the positioning of the axis of the barrel (and therefore of the chambers thereof) relative to the axis of the barrel, a fortiori when the mechanism comprises, as is often the case, several coaxial parts .
  • the principle of actuation of the pusher head with the thumb of one hand, while the other hand presses on the barrel to bring it into the open position remains not very ergonomic.
  • the object of the invention is to provide a more efficient locking device than the prior devices which have just been described, with a simpler structure and less expensive to obtain, providing precise positioning of the axis of the barrel in the closed position. of the barrel pivot, while presenting an easy and particularly ergonomic handling.
  • a device for locking the barrel pivot of a revolver comprising an axis mounted rotating on the carcass of the revolver and capable of tilting parallel to the axis of the barrel between a closed position in which the axis of the barrel is in the plane of symmetry of the revolver, and an open position in which the chambers of said barrel are cleared for loading or ejecting ammunition
  • said locking device ensuring the maintenance of the pivot when the latter it is in the closed position, and being characterized in that it comprises a push button and a sliding lock mounted on the barrel pivot, said push button being accessible laterally, on the side opposite to that of the barrel tilting, and cooperating directly with the sliding bolt to erase the end of it normally received, in the closed position of the barrel pivot, in an associated notch formed in the casing of the revolv er, the arrangement of the pusher allowing the barrel pivot to be unlocked with the same hand as that which pushes the barrel in the direction of opening.
  • the pusher could be sliding, but in general a simpler and more ergonomic structure is obtained with a pusher mounted pivoting about an axis parallel to the axis of the barrel pivot.
  • the pusher comprises an internal actuating lug cooperating with a shoulder of the sliding bolt, said lug being disposed on the other side of the axis of the pusher relative to an external actuating portion accessible for the operation of said pusher.
  • the sliding lock comprises a lateral notch through which the actuating lug passes, the underside of said notch constituting the shoulder of said latch, said lug thus ensuring both the actuation of the sliding latch for unlocking the barrel pivot and retaining said lock in the open position of said pivot.
  • the pusher is subjected to the action of a spring tending to maintain it in a position in which the external actuating portion is substantially at the level of the lateral face of the barrel pivot; in particular, the pusher is held by the associated spring in abutment against the barrel pivot by a facet of the external actuating portion of said pusher, an operating clearance being maintained between the actuating lug of the pusher and the shoulder of the sliding bolt when the barrel pivot is in the position of closing.
  • the sliding lock is subjected to the action of a spring tending to push it towards the outside of the barrel pivot; in particular, the sliding bolt is housed in a bore in the barrel pivot opening into its upper part, the spring associated with the bolt also being housed in said bore and being arranged under the lower end of said bolt.
  • the axis of the bore is slightly inclined relative to the plane of symmetry of the revolver when the barrel pivot is in the closed position, so that in this position there is a bearing contact between a facet of reference of the pivot and an associated facet of the carcass of the revolver, which ensures a correct geometric position of the barrel axis with respect to the barrel in said position;
  • the sliding bolt and the associated bore are cylindrical, the free end face of said bolt being inclined to cooperate with an edge of the carcass of the revolver when the barrel pivot is closed.
  • FIG. 1 illustrates a revolver 1 comprising a carcass 2 on which is mounted a barrel pivot 3 supporting a barrel 4.
  • the barrel of the revolver is here in one piece with the carcass thereof, but this in no way constitutes a limitation for the present invention.
  • the pivot 3 comprises a barrel axis 5, the stepped bore 6 of which can conventionally receive an ejector rod 7 and the associated spring (not shown), the rod 7 ending , behind the barrel, by a star member 8.
  • the barrel pivot 3 also comprises a pivot axis 9 having a stepped bore 10.
  • the two main axes 11 and 12 of the barrel pivot are parallel and, when said pivot is mounted on the carcass of the revolver, the axis 11 is located in the plane of symmetry of the weapon.
  • the barrel pivot 3 can tilt parallel to the axis of the barrel between a closed position in which the axis of the barrel 11 is in the plane of symmetry of the revolver 1, and an open position in which the chambers 13 of said barrel 4 are cleared for loading or ejecting ammunition.
  • the revolver 1 comprises a particular locking device ensuring the maintenance of the pivot 3 when the latter is in the closed position.
  • the locking device essentially comprises a pusher 14, the particular structure of which will be better understood with reference to FIGS. 7 to 10, and a sliding lock 15, the structure of which is more particularly visible in FIG. 5.
  • the pusher 14 and the sliding latch 15 are mounted on the barrel pivot 3, said pusher being accessible laterally, on the side opposite that of the tilting of the barrel 4, and cooperating directly with the sliding latch 15 to erase the end normally received, in the closed position of the barrel pivot 3, in an associated notch 16 formed in the carcass 2 of the revolver (see in particular FIGS. 4 and 11), the arrangement of the pusher 14 enabling the pivot of the barrel 3 with the same hand as that which pushes barrel 4 in the opening direction.
  • the unlocking pusher could be slidably mounted, however a simpler and more reliable structure is obtained by providing a pusher such as the pusher 14 illustrated here, pivotally mounted around an axis 17 parallel to the pivot and barrel axes.
  • FIG. 2 there is the presence of a relatively complex recess formed inside the barrel pivot 3.
  • An oblong slot 18 allows lateral access to the 'recess of the barrel pivot 3, this light 18 being formed on the inner face of said pivot, so that the latter is hidden when the barrel pivot is closed.
  • the upper through hole 19 corresponds to a bore 21 ′ in which the lock 15 is slidably mounted.
  • blind bore 22 with an axis parallel to the axes the barrel pivot 3, said bore making it possible to receive the axis 17 of the unlocking pusher 14; in practice, the small diameter end of the axis 17 will be crimped or glued into the blind bore 22 of the barrel pivot 3.
  • a blind bowl 23 intended to receive the end of a spring associated with the unlocking pusher 14, said spring being visible in FIGS. 4, 11, 12, 13.
  • the sliding latch 15, like the associated bore 21 ′, are preferably cylindrical for reasons of manufacturing convenience.
  • the latch 15 has the shape of a cylindrical rod, having an upper inclined end facet 24, and a cylindrical pin 25 at its lower end; the latch 15 also has a lateral notch 26 in the lower part thereof, so as to define a shoulder 27 allowing cooperation between the unlocking pusher 14 and the sliding latch 15.
  • the unlocking pusher 14 has an outer actuating portion 28, the upper part of which is preferably striated to facilitate actuation of the pusher; on the inner side, this actuating portion comprises, in the upper part, a blind bore 29 intended to receive the other end of the aforementioned spring, and, in the lower part, a stop face 30 normally in abutment against the barrel pivot 3 under the action of said spring.
  • the pusher 14 also includes a internal actuating lug 31 intended to cooperate with the shoulder 27 of the sliding latch 15. The lug 31 is disposed on the other side of the pusher axis 17 relative to the external actuating portion 28 accessible for the operation of said pusher. As can be seen in FIGS.
  • the unlocking pusher 14 is permanently subjected to the action of a spring 32 (already mentioned above) tending to maintain it in a position in which the external actuating portion 28 projects slightly at the level of the lateral face of the pivot. barrel 3, as shown in Figure 4.
  • the pusher 14 is held by the associated spring 32 in abutment against the barrel pivot 3 by the inner face 30 of the outer actuating portion 28 of said pusher coming to bear against an associated facet 33 of the barrel pivot 3.
  • the sliding latch 15 is in turn permanently subjected to the action of a spring 34 tending to push it towards the outside of the barrel pivot 3.
  • the sliding latch 15 being housed in the bore 21 ′ of the barrel pivot 3 , the aforementioned spring 34 will preferably also be housed in said bore, and disposed under the lower end of the latch 15, in particular on the lower stud 25 thereof.
  • the axis 35 of the bore 21 ′ (FIG. 3) is slightly inclined relative to the plane of symmetry of the revolver 36 (FIG. 4) when the barrel pivot 3 is in the closed position: in this way, in the closed position of the said pivot barrel, we are assured of a precise bearing contact between a reference facet 37 of the barrel pivot 3 ( Figures 2 and 4) and an associated facet 38 of the carcass 2 of the revolver ( Figures 1 and 4), which ensures a correct geometric position of the barrel axis 5 relative to the barrel.
  • this operating clearance constitutes additional security for reliable locking of the barrel pivot, since the lug of the unlocking plunger cannot counteract the action of the spring 34 in the closed position of the barrel pivot.
  • FIG. 15 illustrates the barrel pivot in the fully open position, and in particular shows that the thumb of the hand which opened the pivot naturally falls in front of the end of the ejector rod 7, so that the operator can easily press on this rod to eject the ammunition. All the movements of the hand causing the revolver barrel to pivot over an angular range of the order of 90 ° are completely natural and ergonomic. The replacement of the barrel is easy, by an action with the thumb with the operator's left hand on it, while the revolver is still held in his right hand.
  • unlocking and security are provided by two separate parts, each providing a function, which gives greater flexibility in the production of parts.
  • a stopper 42 is provided, the structure of which will be better understood on examining FIG. 6.
  • the stopper comprises an essentially cylindrical body 43, extending downwards by a lower end 44, and having in the upper part, one end forming a stopper 45; note also the presence of a blind bore 46 intended to receive the end of a spring to the action of which the stopper 42 is permanently subjected.
  • the stopper 42 is slidably mounted in the barrel pivot 3, the sliding direction being defined by an axis 35, which may be straight, that is to say in a plane perpendicular to the main axes of the barrel pivot ( Figure 2), or even slightly inclined relative to this plane (axis 135 of the variant illustrated in Figure 17).
  • said retainer has an end 44 projecting below from the barrel pivot 3 to engage in an associated groove 47 formed in the carcass 2 of the revolver (FIGS. 4, 11, 12, 13), while being partially accessible laterally by the oblong opening 18 of the barrel pivot 3 so as to allow the unlocking of said pivot by means of an elongated tool 100, by erasing said end of the retainer 42 from said associated groove (the unlocking tool 100 is only visible in FIG. 12).
  • the sliding stop 42 is here housed in a bore 21 ⁇ of the barrel pivot 3 emerging in the lower part thereof, as can be seen in FIG. 3.
  • the bore 21 ⁇ preferably relates to the unitary assembly constituted by the barrel pivot 3 and the axis 9 of said pivot: in practice, we first mount the pivot axis 9 (preferably fixed by gluing), then we proceed to the machining of the bore 21 ⁇ .
  • the bore 21 ⁇ and the body of the sliding stop 42 are preferably staggered longitudinally so as to leave only a portion of the end 44 of said stop, without risk that the stop 42 escapes from its housing after dismantling the barrel pivot 3. As can be seen in FIG.
  • the sliding stop 42 is preferably permanently subjected to the action of a spring tending to project towards the end 44 of said stopper outside the barrel pivot 3.
  • the aforementioned spring can be housed in the bore in which slides the sliding stop 42, said spring then being placed in abutment against the upper end of said stop. It is therefore extremely advantageous to ensure that the spring 34 acts not only on the sliding latch 15, but also on the sliding stop 42, as can be seen in FIGS. 4, 11, 12, 13.
  • the groove 47 formed in the carcass 2 of the revolver has a section whose front face 47 ′ is conical, which tends to apply the barrel pivot 3 against said carcass, thanks to the combined action of the spring 34 and the projecting lower end 44 of the sliding stop 42. It is then advantageous to provide that this projecting end 44 has a substantially conical or hemispherical shape, so as to cooperate properly with the part before 47 ′ of the groove associated with the sliding stop.
  • the groove 47 is moreover substantially provided on a semicircle, in a plane perpendicular to the plane of symmetry of the revolver 36.
  • an oblique sliding stop the head of which, hemispherical or frustoconical, cooperates with a groove whose front face is straight.
  • the obliqueness of the stopper is obtained by providing an inclined drilling of the barrel pivot, as illustrated in FIG. 17: the axis 135 of the drilling is slightly inclined, for example at an angle of about 8 °, corresponding inclination to a lower orifice in front of the upper orifice (the other references are maintained so as not to unnecessarily complicate the presentation).
  • the associated groove 147 of the carcass 2 then has a front face 147 ′ which is straight (FIG. 18a).
  • the stopper used can be that of FIG.
  • the sliding stop 142 comprises an essentially cylindrical body 143, extending downwards by one end lower 144 forming the frustoconical head, and having in the upper part a cleat 145, without forgetting the blind bore 146 intended to receive in part the associated spring.
  • Such an oblique pusher can give better results to ensure on the one hand a frank stop opposing the longitudinal displacement of the pivot-barrel assembly along the axis of the barrel, in the firing direction, and on the other hand a backlash between the end of the retainer and the front face of the associated groove.
  • the latter solution can be further improved, by avoiding having a large stroke of the retainer with regard to the possible groove depth (approximately 8 mm for 2 mm).
  • the stopper 242 illustrated in FIGS. 19, 20a and 20b provides an interesting solution: this stopper comprises an essentially cylindrical body 243, the lower end of which is split, with two lips 248 and a central (axial) slot 249; we find the cleat 245, but the central bore 246 is at least partially threaded to receive a stud screw 250 ( Figures 20a and 20b).
  • the lips 248 of the sliding stop 242 penetrate into the groove 247 of the carcass 2, a groove whose front faces 247 ′ and rear 247 ⁇ are straight, the lips 248 being tightened (position in FIG. 20a ); then, the nipple screw 250 is driven in by screwing it, which has the effect of spreading the lips 248 (position in FIG. 20b).
  • This solution makes it possible to perfectly maintain the frank stop and the aforementioned backlash, by simple adjustment of the spacing of the lips of the stopper in the groove (without stopper stroke).
  • the upper end of the sliding stop 42 (respectively 142, 242) forming a cleat 45 (respectively 145, 245) is accessible by the oblong opening 18 of the barrel pivot 3, in view unlocking said pivot by means of an elongated tool 100.
  • FIG. 12 Such an operation is illustrated in FIG. 12, in which there is an elongated tool 100 of the Allen key type.
  • the operator inserts the short side of the tool through the oblong slot 18, so that the end of this short side comes into contact with the cleat 45 of the sliding stop 42, and the corner of the tool rests against the casing of the revolver.
  • FIG. 16 illustrates in perspective this manipulation, and shows in particular the ergonomic nature of the device due to the natural position of the operator's left hand, the thumb of which can easily push the assembly barrel pivot forward for its release.
  • the reassembly of the pivot will be done naturally with the reverse operations: we start by installing the pivot-barrel assembly, until the projecting end 44 of the sliding stop 42 comes into abutment against the carcass, then we use the elongated tool to erase this end and let it penetrate the associated groove made in the carcass.
  • the pivot-barrel assembly after dismantling the latter, remains unitary, without the risk of the movable members of the latter escaping: the unlocking pusher 14 is permanently secured by its axis to the barrel pivot 3, the sliding bolt 15 is retained by the lug 31 of said unlocking pusher, and finally the sliding stop 42 is retained by the shoulder of the stepped bore provided in the lower part of the barrel pivot. There is therefore no risk of losing a part when this assembly is disassembled and handled.
  • the holding device which has just been described is much more satisfactory than the prior devices, and in particular than the traditional solution which consisted in providing a circular groove machined on the pivot axis and into which a stop screw.
  • the permanent action of the spring 34 guarantees reliable retention of the barrel pivot relative to the carcass of the revolver.
  • the structure of the holding device is also simple and inexpensive to obtain, and the disassembly of the pivot can be carried out easily and quickly.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Lock And Its Accessories (AREA)
EP89400516A 1988-02-26 1989-02-23 Vorrichtung zur Verriegelung des Trommelschwenkarms in einem Revolver Withdrawn EP0330579A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802399A FR2627850B1 (fr) 1988-02-26 1988-02-26 Dispositif de verrouillage du pivot de barillet d'un revolver
FR8802399 1988-02-26

Publications (1)

Publication Number Publication Date
EP0330579A1 true EP0330579A1 (de) 1989-08-30

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EP89400516A Withdrawn EP0330579A1 (de) 1988-02-26 1989-02-23 Vorrichtung zur Verriegelung des Trommelschwenkarms in einem Revolver

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US (1) US4897950A (de)
EP (1) EP0330579A1 (de)
FR (1) FR2627850B1 (de)
PT (1) PT89770A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7861449B1 (en) 2007-08-14 2011-01-04 Sturm, Ruger & Company, Inc. Cylinder latching mechanism for revolver
US8549782B2 (en) * 2008-12-31 2013-10-08 Smith & Wesson Corp. Firearm having an indexing mechanism
US9453696B2 (en) * 2013-10-18 2016-09-27 Paul A. Tusting Revolver louver
USD787623S1 (en) * 2016-01-18 2017-05-23 Kimber Ip, Llc Crane for a revolver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633302A (en) * 1970-02-27 1972-01-11 Karl R Lewis Cylinder mechanism for revolver-type firearms

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US301180A (en) * 1884-07-01 Revolving fire-arm
US274093A (en) * 1883-03-13 Heney goodman
US678274A (en) * 1899-12-30 1901-07-09 George A Owen Revolving firearm.
US975685A (en) * 1909-12-11 1910-11-15 Andrew Fyrberg Revolver.
US1518027A (en) * 1923-04-06 1924-12-02 Vosmek Ulrich Revolver-cylinder lock
US2382676A (en) * 1943-04-28 1945-08-14 Colt S Mfg Co Revolver crane lock
US3628278A (en) * 1970-02-11 1971-12-21 Sturm Ruger & Co Revolver cylinder crane latch mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633302A (en) * 1970-02-27 1972-01-11 Karl R Lewis Cylinder mechanism for revolver-type firearms

Also Published As

Publication number Publication date
FR2627850A1 (fr) 1989-09-01
PT89770A (pt) 1989-10-04
FR2627850B1 (fr) 1990-08-17
US4897950A (en) 1990-02-06

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