Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
  • F41C9/00—Other smallarms, e.g. hidden smallarms or smallarms specially adapted for underwater use
  • F41C9/06—Smallarms specially adapted for underwater use
• • 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
  • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns
  • F41A19/19—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility
  • F41A19/21—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns with single-trigger firing possibility having only one trigger
• • 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
  • F41A19/39—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types
  • F41A19/41—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types for breakdown guns

Definitions

• the present invention relates generally to the field of small arms directed to the manufacture of a sporting underwater weapon used for firing with powder-charge cartridges and designed both for amateur sporting target-oriented fire and for sporting underwater hunting and frightening away of large predatory fishes.
• This closest prior art describes a pistol comprising a barrel assembly, a receiver, and a firing-trigger mechanism, wherein a firing pin being disposed in a pistol grip handle whereas a striker point with a collar being disposed in the receiver.
• the firing pin does not have a kinematic link with the striker point, and striking energy of the firing pin is transferred to the striker point only through water in case where a trigger release has been accomplished in water.
• a disadvantage of this technical solution consists in that upon each reloading of the pistol, the forong pin must be placed in a cocked position. Another disadvantage is that the striker travels essentially perpendicular to the travel of the striker point, which results in additional pressure drop when energy is transferred from the firing pin to the the striker point and, hence, in the increase of force of cocking said firing pin (that is to say, in the increase of forces exerted on the fring-pin spring).
• an object of the present invention to overcome the aforementioned disadvantages by providing a compact pistol for underwater sporting fire which rules out the possibility of a premeditated or accidental discharge in the above-water position of the weapon.
• the previously mentioned object is obtained in accordance with the present invention by the provision of an underwater sporting pistol comprising a receiver, a barrel assembly, and a firing-trigger mechanism, wherein the improvement resides in that said barrel assembly, closer to a breech end, is provided with a hinged lever member which, upon closing of said assembly, first comes into contact with a firing-pin lug and moves thereof beyond a trigger sear and then simultaneously comes into contact with an inclined plane of the receiver, which affords detachment of the lever member from the firing pin and causes the firing pin to stand on the trigger sear.
• a striker point is movably mounted with respect to the firing pin, a cylindrical opening is provided in the receiver to accomodate said striker point with a collar and a cylindrical part of the firing pin which are spring-connected with a preloading force slightly greater than a force of tractive resistance of moving the srtiker point with the firing pin in water. Acceleration is performed by the firing pin when said cylindrical part of the firing pin is outside the opening, whereas breaking of a primer occurs in the opening when water is contained between the walls of said opening, striker-point collar and the cylindrical part of the firing pin. If this space contains no water, the striker point stops on the primer and the firing pin stops being knocked against the receiver.
• the firing pin is provided with two planes differently distant from the axis of the trigger, said planes by turns coming into contact with a spring-loaded trigger strut.
• a rib of said trigger strut bears up against a distal plane; said strut, when the trigger being depressed by the user, comes into contact with, for example, the right trigger sear; when the firing pin contacting with the trigger strut is in the front position (that is to say, is released), then upon the next trigger pull the strut comes into contact with the left trigger sear.
• FIGURE 1 is a general view with necessary sectional views of the pistol in accordance with the invention.
• FIGURE 2 is a top view of the pistol in accordance with the invention.
• FIGURE 3 is a mechanical diagram for cocking and standing the firing pins on the respective sears
• FIGURES 4a, 4b show stress diagrams for the moments of start (4a) and end (4b) of closing the barrel assembly
• FIGURE 5 shows a scheme of the firing-pin operation in the open air
• FIGURE 6 shows a scheme of the firing-pin operation when fire is accomplished underwater
• FIGURE 7 shows arrangement of the firing pin on the sear in the rear position
• FIGURE 8 is a scheme explaining operation of the firing- pin mechanism (a sectional view taken along the firing-pin axis);
• FIGURE 9 is a sectional view taken perpendicular to the axis of the firing pins, which is aimed to explain the firing-pin mechanism operation;
• FIGURE 10 is a nomogram of changing the force of closing the barrel assembly, Ni, and the force of mainsprings of the firing pins, Pi, plotted against the firing-pin turning angle, Fi.
• a preferred embodiment of the pistol in accordance with the present invention is thereshown and comprises a receiver 1 in which a barrel assembly 2 is installed along the axis pin 3.
• the barrel assembly 2 consists of a coupling 4, barrels (or a barrel) 5, a yoke 6.
• a lever member 8 is attached by an axis pin 7 being spring-loaded with a spring 9.
• a lug indicated as "A" is provided on a breech end of the coupling 4.
• a trigger 18 comprises a spring(20)-loaded strut 19 having a lug indicated as "D” as viewed from the right side of the strut 19 and a lug indicated as "E” - in the front side.
• the firing pins 10 have grooves indicated as "F” to accomodate the sears 16, 17 and planes indicated as “G", "I” in the front side of the firing pin to contact with the lug "D" of the strut 19.
• a lug indicated as “J” to contact with the lever member 8 is provided in the upper part of the firing pin 10.
• At a height of a bore line of the barrel there is installed in the firing pin a movable striker point 21 with a spring 22 and a cylindrical part 23 of the firing pin 10.
• Said cylindrical part 23 is made in the form of a sleeve 23 being movably mounted on the striker point 21.
• a gap indicated as "K” is provided between said cylindrical part 23 of the firing pin 10 and said striker point 21 , the latter entering a cylindrical opening indicated as "L” of the receiver 1.
• Openings indicated as “M”, “N”, “O” are provided in the receiver 1 and the retainer 13.
• a pistol safety lock 24 to prevent from an accidental discharge locks the trigger 18.
• a grip handle 25 is fastened on the receiver 1 by means of a screw 26.
• a bevel indicated as “P” is provided in the receiver 1 to contact with the lever member 8 at the end of closing said barrel assembly.
• the pistol according to the present invention operates as follows.
• the lever 15 of the lock 14 In order to load the pistol, the lever 15 of the lock 14 must be forced out backwards. In so doing, the lock 14 drops out of engagement with the lug "A" of the coupling 4, the barrel assembly 2 by the action of a spring is swung up about the axis pin 3 and the lever member 8 moves into mesh with the lugs "J" of the firing pins 10. After a cartridge chamber is filled with cartridges, the barrel assembly 2 must be closed. To do this, the barrel assembly 2 has to be pressed with a hand to the side of the receiver 1. In so doing, as shown in Figure 3, the lever member 8 provided on the barrel assembly 2 being rested upon the lugs "J" of the firing pins 10 moves them backwards.
• the lever member 8 Upon a subsequent closing of the barrel assembly 2, the lever member 8 will rise up along the bevel P and disengage the lever member 8 with the lugs "J" of the firing pins 10.
• the firing pins 10 being advanced by the action of the mainsprings 1 1 will stand on the respective sears.
• the lock 14 which is spring-actuated by its own spring will move into mesh with the lug "A" of the coupling 4 of the barrel assembly 2 - now the barrel assembly is closed.
• the strut 19 of the trigger 18 will be installed, by means of its own lug, on the plane "G" of the firing pin 10, i.e. the plane located at the greatest distance from a trigger axis pin, whereas the lug "E” of the strut 19 will be installed opposite the right sear 16 and the slot "C" of the left sear 17.
• Figure 3 shows a mechanical diagram for cocking the firing pins when closing the barrel assembly, where P denotes a cocking force, R denotes a force within the lever member 8, N denotes a force of moving the firing pins 10 by the action of the force P.
• Figures 4a, 4b show stress diagrams for the change in the force N plotted against the change in a barrel-assembly turning angle.

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

Applications Claiming Priority (3)

Publications (2)

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ID=20183100

Family Applications (1)

Country Status (6)

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• 1996
  • 1996-07-12 RU RU96113981A patent/RU2106592C1/ru not_active IP Right Cessation
  • 1996-11-10 AU AU76574/96A patent/AU7657496A/en not_active Abandoned
  • 1996-11-10 DE DE69613396T patent/DE69613396T2/de not_active Expired - Fee Related
  • 1996-11-10 EP EP96939381A patent/EP0865603B1/de not_active Expired - Lifetime
  • 1996-11-10 PT PT96939381T patent/PT865603E/pt unknown
  • 1996-11-10 WO PCT/RU1996/000316 patent/WO1998002710A1/en active IP Right Grant

Non-Patent Citations (1)

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