EP1800084A1 - Hunting and sporting firearm - Google Patents

Hunting and sporting firearm

Info

Publication number
EP1800084A1
EP1800084A1 EP05792535A EP05792535A EP1800084A1 EP 1800084 A1 EP1800084 A1 EP 1800084A1 EP 05792535 A EP05792535 A EP 05792535A EP 05792535 A EP05792535 A EP 05792535A EP 1800084 A1 EP1800084 A1 EP 1800084A1
Authority
EP
European Patent Office
Prior art keywords
hammer
firearm according
actuating
action
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Withdrawn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
EP05792535A
Other languages
German (de)
French (fr)
Inventor
Vito De Gregorio
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.)
Beretta SpA
Original Assignee
Debo Srl
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 Debo Srl filed Critical Debo Srl
Publication of EP1800084A1 publication Critical patent/EP1800084A1/en
Withdrawn legal-status Critical Current

Links

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
    • F41A19/15—Modular firing mechanism units
    • 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
    • F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
    • F41A19/52—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, revolvers
    • F41A19/54—Cocking or firing mechanisms for other types of guns, e.g. fixed breech-block types, revolvers for breakdown guns

Definitions

  • This invention relates to a hunting and sporting firearm.
  • this invention relates to an action forming part of a firearm of this kind.
  • action is used here to mean the combined parts of a percussion and firing mechanism which, upon actuation of the trigger, causes a firing pin to impact the cartridge primer so as to ignite the propellant.
  • this specification will refer to a single- barrel firearm, although it will be understood that it also applies to double-barrel firearms (with side-by-side or over-and- under barrels) .
  • the action is mounted inside the rolling block, that is, the steel block attached to the stock and to which the barrels are pivoted.
  • the action comprises a hammer mounted on a transverse pin and designed to directly strike the firing pin of the cartridge primer, and means for propelling the hammer, consisting of snap action means actuated by the trigger.
  • the firing pin consists of a substantially cylindrical rod operated by a spiral retracting spring that causes it to slide lengthways in a through hole made in a separating wall between the inside of the rolling block and the breech.
  • the firing pin When the hammer, actuated by the propulsion means, strikes one end of the firing pin extending into the cavity that houses the action, the second, round-tipped end of the rod penetrates the barrel for a certain length in such a way as to strike the primer. After each shot, in order to enable the barrel to be opened to extract the empty cartridge case and reload the gun, the firing pin must be retracted from the breech into the through hole so as to prevent wear and breakage caused by interference of the second end of the firing pin with the cartridge case and the barrel itself.
  • the firing pin can be retracted only if the hammer is free to withdraw, or in other words, if it is no longer in contact with the propulsion means or subjected to their pushing force.
  • the propulsion means which are operated by the spring elastic means, are equipped with stop means, adjusted in such a way that, under end of stroke conditions, that is to say, when the elastic means are extended as far as possible, the hammer is no longer subjected to their pushing force and performs only by inertia a limited final angular stroke until it impacts the cartridge case and thus allows the firing pin to return freely to its initial rest position.
  • the stopping means are subjected to violent shocks which cause wear and which, in the long run, modify their position to such an extent as to prevent the firing pin from returning to its initial rest position, thereby giving rise to the problems described above.
  • the aim of the present invention is, therefore, to overcome the above-mentioned disadvantages by providing a firearm equipped with a simple action that is more durable and reliable than actions known in prior art.
  • this object is achieved by a hunting and sporting firearm having the characteristics described in claim 1.
  • Figures 1 to 4 are schematic side views, with some parts in cross section, showing a portion of a firearm equipped with an action according to the present invention in four different operating conditions;
  • Figure 5 is a perspective exploded view of a detail from Figures 1 to 4 comprising the action according to the invention
  • Figures 6 to 9 are schematic side views, with some parts in cross section, showing a detail of the action according to the invention in four different operating conditions.
  • the numeral 1 denotes in its entirety an over-and-under firearm comprising a pair of barrels 2 (partially illustrated) , and a stock 3 (partially illustrated) , between which there is a rolling block 4 to which the barrels 2 are pivoted by means of a hinge pin 5.
  • the numeral 6 denotes a cavity in the rolling block 4, designed to accommodate a snap action mechanism 7 comprising, for each barrel 2, an action 8 which, upon being actuated by a trigger 9, causes a respective firing pin 10 associated with each barrel 2 to impact the case of a cartridge (not illustrated) .
  • Each firing pin 10 consists of a substantially cylindrical rod 11 having a rim 11a at an intermediate position of it and housed in a through hole 12 made in a transversal wall 13 separating the cavity 6 from the respective barrel 2. Positioned around each firing pin 10 and abutting against the rim 11a there is a helical spring 14 for retracting the firing pin 10 into the cavity 6. Since the two actions 8, each associated with one of the barrels 2, are exactly the same, reference will hereinafter be made to only one firing pin 10 and to the respective action 8. As illustrated in Figures 3, 4 and 5, the cavity 6 has at the bottom of it an opening 15 and is defined by the aforementioned transversal wall 13 and by two longitudinal walls
  • the action 8 forms part of a unit 19 that can be extracted from the cavity 6 and re-inserted into the latter through the opening 15, and is mounted in the cavity 6 by quick fitting and release means labelled 20 in their entirety.
  • the extractable unit 19 includes a supporting member 21 on which the action 8 is mounted and which is defined, at the bottom, by a mobile wall 22 that closes the opening 15 and has a trigger guard 23 attached to it.
  • the trigger 9 projecting outwardly from the wall 22 forms part of the action 8.
  • the action 8 further comprises a hammer 24 for directly actuating the firing pin 10, mounted on the supporting member 21 by means of a transverse pin 25, a customary mechanism 26 (not illustrated) for releasing the hammer 24 when the trigger 9 is actuated and a propulsion element, labelled 27 as a whole, for propelling the hammer 24.
  • the propulsion element 27 comprises means 28 for actuating the hammer 24 and mobile, along an axis 29 defined by guide means 30 consisting of a rod 31, between a retracted loading position ( Figures 1 and 6) and an advanced position ( Figure 7) in which the hammer 24 is propelled towards the firing pin 10.
  • the actuating means 28 consist of a tubular element 32 coaxial with the axis 29 and having a first, round-tipped end 33 that actuates the hammer 24 and a U-shaped protrusion 34 at the other end.
  • the tubular element 32 houses means 35 for driving the actuating means 28 and consisting of a spiral spring 36 wound around the guide rod 31 which, at its free end, is equipped with a substantially parallelepiped-shaped end block 37 abutting against a pin 38 transversal to the axis 29 and attached to the supporting member 21.
  • the numeral 39 denotes means for stopping the actuating means 28 and having an elongated portion 40 parallel to the axis 29 and slidably inserted between the branches of the U-shaped protrusion 34.
  • the elongated portion 40 has a T-shaped end 41 whose transversal section is designed to engage the branches of the protrusion 34 which thus defines means for opposing the .T- shaped portion of the end 41.
  • the elongated portion 40 has a wall 42 transversal to the axis 29 and having made in it a hole 43 through which the rod 31 can slide.
  • the wall 42 is interposed between one end of the spiral spring 36 protruding from the tubular element 32 and the block 37 and, for the reasons that will become clear in the description of how the propulsion element 27 operates, constitutes abutting means 44 integral with the stopping means 39.
  • the numeral 45 denotes a guide wall, orthogonal to the wall 42 and coplanar with the elongated portion 40 and designed to slide on an upper face of the end block 37.
  • shock absorbing means 49 makes the action 8 according to this invention more durable and reliable than prior art actions described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

In a hunting and sporting firearm including a rolling block (4) having a cavity (6) for accommodating at least one action (8), the latter comprising a hammer (24) for actuating a firing pin (10), a propulsion element (27) for propelling the hammer (24) and a trigger (9), said propulsion element is subjected to the action of shock absorbing means (49) consisting of its own drive means (35) constituted by a spiral spring (36).

Description

Description
Hunting and sporting firearm
Technical Field
This invention relates to a hunting and sporting firearm.
In particular, this invention relates to an action forming part of a firearm of this kind. The term "action" is used here to mean the combined parts of a percussion and firing mechanism which, upon actuation of the trigger, causes a firing pin to impact the cartridge primer so as to ignite the propellant.
For simplicity, this specification will refer to a single- barrel firearm, although it will be understood that it also applies to double-barrel firearms (with side-by-side or over-and- under barrels) .
Background Art As is known, the action is mounted inside the rolling block, that is, the steel block attached to the stock and to which the barrels are pivoted. In a single-barrel firearm, the action comprises a hammer mounted on a transverse pin and designed to directly strike the firing pin of the cartridge primer, and means for propelling the hammer, consisting of snap action means actuated by the trigger.
As also known in prior art, the firing pin consists of a substantially cylindrical rod operated by a spiral retracting spring that causes it to slide lengthways in a through hole made in a separating wall between the inside of the rolling block and the breech.
When the hammer, actuated by the propulsion means, strikes one end of the firing pin extending into the cavity that houses the action, the second, round-tipped end of the rod penetrates the barrel for a certain length in such a way as to strike the primer. After each shot, in order to enable the barrel to be opened to extract the empty cartridge case and reload the gun, the firing pin must be retracted from the breech into the through hole so as to prevent wear and breakage caused by interference of the second end of the firing pin with the cartridge case and the barrel itself.
This is done by the retracting spring. The firing pin, however, can be retracted only if the hammer is free to withdraw, or in other words, if it is no longer in contact with the propulsion means or subjected to their pushing force.
For this reason, the propulsion means, which are operated by the spring elastic means, are equipped with stop means, adjusted in such a way that, under end of stroke conditions, that is to say, when the elastic means are extended as far as possible, the hammer is no longer subjected to their pushing force and performs only by inertia a limited final angular stroke until it impacts the cartridge case and thus allows the firing pin to return freely to its initial rest position.
It has been found, however, that on account of the extremely strong forces applied to the propulsion means by the elastic means, the stopping means are subjected to violent shocks which cause wear and which, in the long run, modify their position to such an extent as to prevent the firing pin from returning to its initial rest position, thereby giving rise to the problems described above.
Disclosure of the Invention
The aim of the present invention is, therefore, to overcome the above-mentioned disadvantages by providing a firearm equipped with a simple action that is more durable and reliable than actions known in prior art.
According to the invention, this object is achieved by a hunting and sporting firearm having the characteristics described in claim 1.
Brief Description of the Drawings
The technical characteristics of the invention, with reference to the above aims, are clearly described in the claims below and its advantages are apparent from the detailed description which follows, with reference to the accompanying drawings which illustrate a preferred embodiment of the invention provided merely by way of example without restricting the scope of the inventive concept, and in which:
Figures 1 to 4 are schematic side views, with some parts in cross section, showing a portion of a firearm equipped with an action according to the present invention in four different operating conditions;
Figure 5 is a perspective exploded view of a detail from Figures 1 to 4 comprising the action according to the invention;
Figures 6 to 9 are schematic side views, with some parts in cross section, showing a detail of the action according to the invention in four different operating conditions.
Detailed Description of the Preferred Embodiments of the Invention
With reference to Figures 1 and 2, the numeral 1 denotes in its entirety an over-and-under firearm comprising a pair of barrels 2 (partially illustrated) , and a stock 3 (partially illustrated) , between which there is a rolling block 4 to which the barrels 2 are pivoted by means of a hinge pin 5.
The numeral 6 denotes a cavity in the rolling block 4, designed to accommodate a snap action mechanism 7 comprising, for each barrel 2, an action 8 which, upon being actuated by a trigger 9, causes a respective firing pin 10 associated with each barrel 2 to impact the case of a cartridge (not illustrated) .
Each firing pin 10 consists of a substantially cylindrical rod 11 having a rim 11a at an intermediate position of it and housed in a through hole 12 made in a transversal wall 13 separating the cavity 6 from the respective barrel 2. Positioned around each firing pin 10 and abutting against the rim 11a there is a helical spring 14 for retracting the firing pin 10 into the cavity 6. Since the two actions 8, each associated with one of the barrels 2, are exactly the same, reference will hereinafter be made to only one firing pin 10 and to the respective action 8. As illustrated in Figures 3, 4 and 5, the cavity 6 has at the bottom of it an opening 15 and is defined by the aforementioned transversal wall 13 and by two longitudinal walls
16 and an end wall 17 attached to the stock 3 and an upper wall 18 that closes it.
The action 8 forms part of a unit 19 that can be extracted from the cavity 6 and re-inserted into the latter through the opening 15, and is mounted in the cavity 6 by quick fitting and release means labelled 20 in their entirety. The extractable unit 19 includes a supporting member 21 on which the action 8 is mounted and which is defined, at the bottom, by a mobile wall 22 that closes the opening 15 and has a trigger guard 23 attached to it.
The trigger 9 projecting outwardly from the wall 22 forms part of the action 8. The action 8 further comprises a hammer 24 for directly actuating the firing pin 10, mounted on the supporting member 21 by means of a transverse pin 25, a customary mechanism 26 (not illustrated) for releasing the hammer 24 when the trigger 9 is actuated and a propulsion element, labelled 27 as a whole, for propelling the hammer 24.
As illustrated in Figures 5 to 9, the propulsion element 27 comprises means 28 for actuating the hammer 24 and mobile, along an axis 29 defined by guide means 30 consisting of a rod 31, between a retracted loading position (Figures 1 and 6) and an advanced position (Figure 7) in which the hammer 24 is propelled towards the firing pin 10.
The actuating means 28 consist of a tubular element 32 coaxial with the axis 29 and having a first, round-tipped end 33 that actuates the hammer 24 and a U-shaped protrusion 34 at the other end.
The tubular element 32 houses means 35 for driving the actuating means 28 and consisting of a spiral spring 36 wound around the guide rod 31 which, at its free end, is equipped with a substantially parallelepiped-shaped end block 37 abutting against a pin 38 transversal to the axis 29 and attached to the supporting member 21.
The numeral 39 denotes means for stopping the actuating means 28 and having an elongated portion 40 parallel to the axis 29 and slidably inserted between the branches of the U-shaped protrusion 34. The elongated portion 40 has a T-shaped end 41 whose transversal section is designed to engage the branches of the protrusion 34 which thus defines means for opposing the .T- shaped portion of the end 41.
As can be seen better in Figure 5, at its second end the elongated portion 40 has a wall 42 transversal to the axis 29 and having made in it a hole 43 through which the rod 31 can slide. The wall 42 is interposed between one end of the spiral spring 36 protruding from the tubular element 32 and the block 37 and, for the reasons that will become clear in the description of how the propulsion element 27 operates, constitutes abutting means 44 integral with the stopping means 39. The numeral 45 denotes a guide wall, orthogonal to the wall 42 and coplanar with the elongated portion 40 and designed to slide on an upper face of the end block 37.
During use, starting from the condition illustrated in figure 1 e 6, where the hammer 24 is retracted in the cocked position and the tubular element 32 and spring 36 are, respectively, retracted and compressed, pulling the trigger 9 causes the mechanism 26 to release the hammer 24 which turns about the pin 25, in an anticlockwise direction in the drawings, driven by the tubular element 32 under the action of the spring 36. The tubular element 32 drives the hammer 24 so it turns as far as the point where the branches of the protrusion 34 engage the T-shaped end 41 of the stopping means 39, after which, by inertia, it performs a limited final angular stroke until the firing-pin 10 impacts the cartridge case. The impact of the T-shaped end 41 of the elongated portion 40 against the branches of the of the U-shaped protrusion 34 of the tubular element 32 causes the spring 36 to be compressed by the wall 42 and, thus, at this stage, the propulsion element 27 is subjected to the action of respective shock absorbing means 49 consisting of elastic means constituted by the spiral spring 36 itself.
The presence of these shock absorbing means 49 makes the action 8 according to this invention more durable and reliable than prior art actions described above.
Lastly, it should also be noticed that replacement of the action 8, should this be necessary for any reason, is extremely quick and easy thanks to the quick-release means 20, consisting of a pressure fit 46 between the supporting member 21 and the wall 13, and a button 47 for releasing a pin 48 that locks the supporting member 21 itself on a longitudinal wall 16 of the rolling block 4. It will be understood that the invention described may be useful in many industrial applications and may be modified and adapted in several ways without thereby departing from the scope of the inventive concept. Moreover, all the details of the invention may be substituted by technically equivalent elements.

Claims

Claims
1. A hunting and sporting gun including a rolling block (4) with a cavity (6) for housing at least one action (8) comprising a hammer (24) for actuating a respective firing pin (10) and a propulsion element (27) for propelling the hammer (24) and a trigger (9), characterised in that it comprises shock absorbing means (49) for damping the impact of the propulsion element (27) .
2. The firearm according to claim 1, characterised in that the propulsion element (27) comprises: means (28) for actuating the hammer (24) and mobile along an axis (29) between a retracted loading position and an advanced, hammer (24) propelling position; means (39) for stopping at the advanced propelling position; and means (35) for driving the actuating means (28) .
3. The firearm according to claim 2, characterised in that the drive means (35) consist of a spiral spring (36) substantially- coaxial with the axis (29) and positioned between the actuating means (28) and abutting means (44) integral with the stopping means (39) .
4. The firearm according to claim 1, characterised in that the abutting means (44) are slidably mounted on respective guide means (30) coaxial with the axis (29) .
5. The firearm according to claim 4, characterised in that the guide means (30) are defined by a rod (31) having at one end of it a block (37) for connection to a fixed stop pin (38) .
6. The firearm according to claim 4, characterised in that the shock absorbing means (49) consist of elastic means acting on the abutting means (44) .
7. The firearm according to one of the foregoing claims from 1 to 6, characterised in that the shock absorbing means (49) are constituted by the spiral spring (36) .
8. The firearm according to one of the foregoing claims from 1 to 7, characterised in that the actuating means (28) comprise a tubular element (32) coaxial with the axis (29) having at one end a tip (33) for actuating the hammer (24) and housing the rod (31), with the spiral spring (36) interposed between them; the tubular element (32) having a protrusion (34) defining opposing means designed to engage the stopping means (39) .
9. The firearm according to one of the foregoing claims from 1 to
8, characterised in that the action (8) forms part of a unit (19) that can be extracted from the cavity (6) and re-inserted into the latter through an opening (15) .
10. The firearm according to claim 9, characterised in that it comprises means (20) for quickly fitting and releasing the unit (19) in the cavity (6) .
11. The firearm according to claim 9, characterised in that the unit (19) comprises a supporting member (21) for mounting the hammer (24) , the propulsion element (27) and the trigger (9) .
EP05792535A 2004-10-12 2005-10-06 Hunting and sporting firearm Withdrawn EP1800084A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000620A ITBO20040620A1 (en) 2004-10-12 2004-10-12 HUNTING AND SHOOTING RIFLE
PCT/IB2005/003091 WO2006040675A1 (en) 2004-10-12 2005-10-06 Hunting and sporting firearm

Publications (1)

Publication Number Publication Date
EP1800084A1 true EP1800084A1 (en) 2007-06-27

Family

ID=35432285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05792535A Withdrawn EP1800084A1 (en) 2004-10-12 2005-10-06 Hunting and sporting firearm

Country Status (4)

Country Link
US (1) US20080120887A1 (en)
EP (1) EP1800084A1 (en)
IT (1) ITBO20040620A1 (en)
WO (1) WO2006040675A1 (en)

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ITBS20110071A1 (en) * 2011-05-19 2012-11-20 Arsenal Firearms Finance Ltd TWO RODS GUN AND BI-WIRE LOADER
AT13326U1 (en) * 2012-02-20 2013-10-15 Steyr Mannlicher Holding Gmbh BACK STECHER-TRIGGER DEVICE
IT201800002840A1 (en) * 2018-02-20 2019-08-20 Retay Silah Otomotiv Insaat Ve Gida Sanayi Ve Ticaret Ltd Sirketi LOCKING MECHANISM OF A TRIGGER UNIT THAT ALLOWS ASSEMBLY AND DISMANTLING PROCEDURES TO / FROM THE RIFLE FRAME

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Also Published As

Publication number Publication date
US20080120887A1 (en) 2008-05-29
WO2006040675A1 (en) 2006-04-20
ITBO20040620A1 (en) 2005-01-12

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