EP0865603B1 - Underwater sporting pistol - Google Patents
Underwater sporting pistol Download PDFInfo
- Publication number
- EP0865603B1 EP0865603B1 EP96939381A EP96939381A EP0865603B1 EP 0865603 B1 EP0865603 B1 EP 0865603B1 EP 96939381 A EP96939381 A EP 96939381A EP 96939381 A EP96939381 A EP 96939381A EP 0865603 B1 EP0865603 B1 EP 0865603B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- firing
- firing pin
- receiver
- underwater
- trigger
- 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.)
- Expired - Lifetime
Links
Images
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, more specially 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 is disposed in a pistol grip handle whereas a striker point with a collar is 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 when the trigger has been pulled under water.
- a disadvantage of this technical solution consists in that upon each reloading of the pistol, the firing 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 an additional pressure drop when energy is transferred from the firing pin to the the striker point and, hence, in the increase of the force of cocking said firing pin (that is to say, in the increase of forces exerted on the firing pin spring).
- US-A-4 100 855 describes a power head for a fishing spear, said power head being attached to the end of a spear shaft.
- Said power head comprises a chamber to house an explosive cartridge.
- a firing mechanism is provided which comprises two pistons slideably mounted within a cylinder having a plurality of ports. The actuation of the firing mechanism is possible only when water has entered the space in the cylinder between the two pistons, i.e. underwater.
- the chamber containing the cartridge is threaded to the end of the firing mechanism.
- DE-C-20 458 describes a gun in the form of a cane or umbrellor which has a pivotable barrel pivoted to the breech portion of the device close to the breech end of the barrel. Attached to the barrel is a lever (n) which cocks the device by pushing back a spring loaded firing pin when the barrel is pivoted to open and to load the device.
- 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 having a collar as well as 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 striker 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, the striker-point collar and the cylindrical part of the 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 located in different distances from the axis of the trigger, said planes coming into contact with a spring-loaded trigger strut one after the other.
- a rib of said trigger strut bears up against a distal plane when the trigger is depressed by the user, said strut comes into contact with, for example, the right trigger sear; when the firing pin contacting the trigger strut is in the front position (that is to say, has been released), then upon the next trigger pull the strut comes into contact with the left trigger sear.
- FIGURE 1 a preferred embodiment of the pistol in accordance with the present invention is there shown, which pistol comprises a receiver 1 in which a barrel assembly 2 is installed pivotably around axis pin 3.
- the barrel assembly 2 consists of a coupling 4, barrels (or a barrel) 5 and 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 at the 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 (Fig. 8 and Fig. 9).
- 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 engage 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.
- 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 of the receiver 1 indicated as "L” .
- Openings indicated as “M”, “N”, “O” are provided in the receiver 1 and the retainer 13.
- a pistol safety lock 24 to prevent it from an accidental discharge locks the trigger 18.
- a grip handle 25 is fastened to the receiver 1 by means of a screw 26.
- a bevel indicated as “P” is provided in the receiver I 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 9 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 towards the receiver 1. In so doing, as shown in Figure 3, the lever member 8 provided on the barrel assembly 2, while resting upon the lugs "J" of the firing pins 10, moves them backwards.
- the firing pin 10 advances to strike the primer with its striker point 21 only, because the latter is connected to the firing pin 10 through a weak spring 22 and air freely escapes through the gaps.
- 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 of the barrel-assembly turning angle.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Description
The present invention relates generally to the field of small
arms, more specially 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.
At present, underwater firearms are widely used both by
sportsmen-divers and for the self-defence of combat swimmers.
Combat weapons used by combat swimmers must fire both in
water and, if need be, in the open air. Therefore, multibarreled
systems, as a rule, employ a firing pin mechanism giving a firing
pin one turn upon a trigger being regularly depressed by the user
(for example, the underwater pistol SPP-1, Russia). For an
underwater sporting weapon, one among a number of
requirements is the matter of safety and impossibility to perform
a premeditated or accidental discharge in the underwater
position of the weapon. This task has been solved in a prior art
underwater spear gun for underwater hunting
issued under USSR Inventor's Certificate No. 295958 on
December 3, 1970 (the application of April 25, 1969). This closest
prior art describes a pistol comprising a barrel assembly, a
receiver, and a firing-trigger mechanism, wherein a firing pin
is disposed in a pistol grip handle whereas a striker point
with a collar is disposed in the receiver. In so doing, 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 when the trigger has been
pulled under water.
A disadvantage of this technical solution consists in that
upon each reloading of the pistol, the firing 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 an additional pressure drop when energy is
transferred from the firing pin to the the striker point and, hence,
in the increase of the force of cocking said firing pin (that is to say, in
the increase of forces exerted on the firing pin spring).
US-A-4 100 855 describes a power head for a fishing spear,
said power head being attached to the end of a spear shaft.
Said power head comprises a chamber to house an explosive
cartridge. In order to avoid the firing of the device out of
water, a firing mechanism is provided which comprises two
pistons slideably mounted within a cylinder having a plurality
of ports. The actuation of the firing mechanism is possible
only when water has entered the space in the cylinder between
the two pistons, i.e. underwater. In order to load the device,
the chamber containing the cartridge is threaded to the end of
the firing mechanism.
DE-C-20 458 describes a gun in the form of a cane or umbrellor
which has a pivotable barrel pivoted to the breech portion of
the device close to the breech end of the barrel. Attached to
the barrel is a lever (n) which cocks the device by pushing
back a spring loaded firing pin when the barrel is pivoted to
open and to load the device.
Accordingly, it is 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 according to claim 1.
To rule out a discharge in the open air (in the above-water
position), 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 having a collar as well as 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 striker 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, the striker-point collar and the cylindrical part of
the 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. To ensure that two firing pins are alternately
released by means of one trigger, the firing pin is provided with
two planes located in different distances from the axis of the trigger, said
planes coming into contact with a spring-loaded trigger
strut one after the other. When both firing pins are on their trigger sears, a rib of said
trigger strut bears up against a distal plane when the
trigger is depressed by the user, said strut comes into contact with, for
example, the right trigger sear; when the firing pin contacting
the trigger strut is in the front position (that is to say, has been
released), then upon the next trigger pull the strut comes into
contact with the left trigger sear.
The various objects, advantages and novel features of the
present invention will be more readily apparent from the
following detailed description when read in conjunction with the
accompanying drawings, wherein like reference characters refer
to like parts throughout the several views, and in which:
With reference to FIGURE 1, a preferred embodiment of
the pistol in accordance with the present invention is there shown, which
pistol comprises a receiver 1 in which a barrel assembly 2 is
installed pivotably around axis pin 3. The barrel assembly 2 consists of a
coupling 4, barrels (or a barrel) 5 and a yoke 6. To the coupling 4, 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 at the breech
end of the coupling 4.
In the receiver 1, assembled with a slode fit, are firing pins
10 spring-loaded by means of mainsprings 11 resting upon a
catch 12 which holds a retainer 13 covering the firing pins 10. In
the upper part of the receiver 1, a slot indicated as "B2" is
provided in which is mounted a lock 14 with a lever 15. In the
bottom part of the receiver 1, underneath the firing pins 10, two
right 16 and left 17 sears are mounted, said left sear being
provided with a slot indicated as "C" (Fig. 9). 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 (Fig. 8 and Fig. 9).
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 engage 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. Aligned with the
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 of the receiver 1 indicated as "L" .
Openings indicated as "M", "N", "O" are provided in the
receiver 1 and the retainer 13. A pistol safety lock 24 to prevent it
from an accidental discharge locks the trigger 18. A grip handle
25 is fastened to the receiver 1 by means of a screw 26. A bevel
indicated as "P" is provided in the receiver I 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.
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 9 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 towards the
receiver 1. In so doing, as shown in Figure 3, the lever member 8
provided on the barrel assembly 2, while resting upon the lugs "J"
of the firing pins 10, moves them backwards. Upon the further
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 11 will then stand on their 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 to contact, by means of its own lug, the
plane "G" of the firing pin 10,
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.
Upon the trigger 18 being depressed by the user, said
trigger 18, making a turn with its strut, rests upon the right sear
16 and, moving with its lug "D" along the plane "G" of the firing
pin 10, shifts the sear 16 backwards. In so doing, the lug "E" of
the strut 19 enters the slot "C" of the sear 17. The right firing pin
10 is released and advances to strike the primer. Upon release of
the trigger 18 the latter, being spring-actuated, will take up its
initial position. In this case, the lug "D" of the strut 19 will be
disposed under the other plane, "I", of the released firing pin 10 which is in
front position. Upon the trigger 18 being depressed by the user
over again, the strut will contact with the left sear 17 above the
slot "C" and release the left firing pin 10.
As shown in Figure 5, upon the sear 18 being depressed by
the user in the open air, the firing pin 10 advances to strike the
primer with its striker point 21 only, because the latter is
connected to the firing pin 10 through a weak spring 22 and air
freely escapes through the gaps.
With reference now to Figure 2, when firing is performed
underwater, water through the openings "M", "N" and "O"
finds its way into the firing pin 10 and fills the gap "K". That is
why in the front position of the firing pin 10 the striker point 21
communicates with said firing pin through water (see Figure 6)
which, as is known, has an extremely low contraction coefficient.
In this situation essentially all the energy of the firing pin is
transferred through the striker point 21 to the primer. So a shot
is fired.
When reloading of the pistol and depressing of the trigger
are accomplished over again, the sequence of operation of the
mechanisms is repeated.
Calculations performed show that the force of cocking the
firing pins when closing the barrel assembly lies, under specific
conditions, within acceptable limits. 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
of the barrel-assembly turning angle. Figure 10 shows a nomogram
of changing the force of cocking, Ni, and the force exerted on the
firing pins, Pi, plotted against the barrel-assembly turning angle,
Ti, when affording residual energy of the firing pin to strike the
primer (Δ = 5.21 J, Erequired = 2.03 J).
Claims (3)
- Underwater sporting pistol, comprising a receiver (1), a barrel assembly (2), and a firing-trigger mechanism comprising a firing pin (10) and an adjacent gap (K) communicating with the environment which allows the firing of the pistol only underwater when said gap (K) is filled with surrounding water, characterized in that said barrel assembly (2) is pivotably (3) connected to the receiver (1) and is, closer to its breech end, provided with a hinged lever member (8) coming into contact, upon closing of said assembly (2) by pivoting the barrel assembly (2) towards the receiver (1), with a firing pin (10) disposed in the receiver (1), and moving said firing pin (10) towards the locking position beyond a trigger sear (16,17), said lever member (8) interacting, at the end of the locking, with an inclined plane (P) of the receiver (1) such that said lever member (8) is disengaged from the firing pin (10).
- The underwater sporting pistol as claimed in claim 1,
wherein said barrel member comprises two barrels and wherein said lever member (8) further is adapted to contact in parallel with two firing pins (10,11), which firing pins (10,11) comprise two planes (G,I) located at different distances from the axis of a trigger (18), said planes coming successively into contact with a rib (D) of a spring (20)-loaded trigger strut (19). - The underwater sporting pistol as claimed in claim 1, whereinsaid firing pin (10) is equipped with a movable striker point (21) mounted therein,a gap (K) is provided between a cylindrical part (23) of the firing pin (10) and a collar of the movable striker point (21),and a cylindrical opening (L) is provided in the receiver (1) to accomodate said striker point (21) with its collar,and wherein said gap (K), in the locked state of the firing pin (10), communicates with the surrounding through openings (M,N,O),and said cylindrical part (23) of the firing pin (10) is connected to the striker point (21) by a spring (22).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU96113981A RU2106592C1 (en) | 1996-07-12 | 1996-07-12 | Underwater sporting pistol |
| RU96113981 | 1996-07-12 | ||
| PCT/RU1996/000316 WO1998002710A1 (en) | 1996-07-12 | 1996-11-10 | Underwater sporting pistol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0865603A1 EP0865603A1 (en) | 1998-09-23 |
| EP0865603B1 true EP0865603B1 (en) | 2001-06-13 |
Family
ID=20183100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96939381A Expired - Lifetime EP0865603B1 (en) | 1996-07-12 | 1996-11-10 | Underwater sporting pistol |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0865603B1 (en) |
| AU (1) | AU7657496A (en) |
| DE (1) | DE69613396T2 (en) |
| PT (1) | PT865603E (en) |
| RU (1) | RU2106592C1 (en) |
| WO (1) | WO1998002710A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR097279A1 (en) | 2013-08-09 | 2016-03-02 | Actelion Pharmaceuticals Ltd | DERIVATIVES OF BENZIMIDAZOLIL-METIL UREA AS ALX RECEIVER AGONISTS |
| HU1700049V0 (en) * | 2017-03-24 | 2017-08-28 | Janos Palocska | Construction for protecting firing pin |
| RU2733018C1 (en) * | 2020-02-20 | 2020-09-28 | Андрей Альбертович Половнев | Device for underwater shooting from small arms |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20458C (en) * | G. RALL in Reutlingen | Innovations in stock shotguns | ||
| CH176388A (en) * | 1934-07-19 | 1935-04-15 | Mueller Bernhard | Match gun. |
| AU501922B2 (en) * | 1976-05-11 | 1979-07-05 | L. J Ocallaghan | Underwater power head |
| US4651454A (en) * | 1985-05-06 | 1987-03-24 | Harris Paul C | Spear gun having gas sealing means |
-
1996
- 1996-07-12 RU RU96113981A patent/RU2106592C1/en not_active IP Right Cessation
- 1996-11-10 WO PCT/RU1996/000316 patent/WO1998002710A1/en active IP Right Grant
- 1996-11-10 EP EP96939381A patent/EP0865603B1/en not_active Expired - Lifetime
- 1996-11-10 PT PT96939381T patent/PT865603E/en unknown
- 1996-11-10 DE DE69613396T patent/DE69613396T2/en not_active Expired - Fee Related
- 1996-11-10 AU AU76574/96A patent/AU7657496A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0865603A1 (en) | 1998-09-23 |
| DE69613396T2 (en) | 2002-04-18 |
| PT865603E (en) | 2001-12-28 |
| DE69613396D1 (en) | 2001-07-19 |
| WO1998002710A1 (en) | 1998-01-22 |
| RU2106592C1 (en) | 1998-03-10 |
| AU7657496A (en) | 1998-02-09 |
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