Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO1997021974 - MECANISME COMBINE MECANIQUE ET ELECTROMECANIQUE DE MISE EN OEUVRE D'UNE ARME A FEU

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

What is claimed is:

1. A firearm firing mechanism comprising:

a hammer;

means for semi-automatic firing having a trigger with a first sear for engaging a first sear surface on the hammer and a disconnector movably connected to the trigger, the disconnector having a second sear for engaging a second sear surface on the hammer; and

means for automatic firing having an electromechanical movement mechanism for moving an automatic sear out of engagement with a third sear surface on the hammer wherein the automatic firing means is only operable after the trigger releases the hammer from mechanical engagement at the first sear surface.

2. A firearm firing mechanism as in Claim 1 wherein the electro-mechanical movement mechanism comprises a piezoelectric member connected to an actuator.

3. A firearm firing mechanism as in Claim 2 wherein the piezoelectric member has a substantially flat shape in an uncharged state with an aperture therethrough and the actuator passing through the aperture.

4. A firearm firing mechanism as in Claim 3 wherein the actuator is pivotally connected to the piezoelectric member.

5. A firearm firing mechanism as in Claim 4 wherein the movement mechanism further comprises a cam and a 18
spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards an automatic sear release position.

6. A firearm firing mechanism comprising:

a hammer;

an automatic sear having a first section for engaging a sear surface on the hammer, a second section for movement by a selector, and a third section; and

an electro-mechanical movement mechanism for moving the automatic sear, the movement mechanism comprising an actuator and a piezoelectric member for moving the actuator, wherein as the piezoelectric member is moved from a first position to a second position the actuator is moved by the piezoelectric member to move the third section of the sear and thereby move the first section of the sear out of engagement with the sear surface on the hammer.

7. A firearm firing mechanism as in Claim 6 further comprising a semi-automatic firing system comprising a trigger with a first sear and a disconnector movably connected to the trigger with a second sear.

8. A firearm firing mechanism as in Claim 7 further comprising means for allowing the firing mechanism to operate only after mechanical release of the hammer from the trigger at the first sear.

9. A firearm firing mechanism as in Claim 6 wherein the piezoelectric member has a substantially flat shape in an uncharged state with the actuator passing through its center.

10. A firearm firing mechanism as in Claim 9 wherein the actuator is pivotally connected to the piezoelectric member.

11. A firearm firing mechanism as in Claim 6 further comprising a cam and a spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards an automatic sear release position.

12. A method of firing a firearm comprising the steps of:

moving a trigger of the firearm to thereby release a mechanical interlock of the trigger with a hammer of the firearm, the release of the mechanical interlock allowing the hammer to move from a first cocked position to a battery position to cause a first discharge of the firearm;

retaining the hammer at a second cocked position by a sear of the firearm when the hammer is moved back from its battery position after the first discharge; and

moving the sear by an electro-mechanical mover from a holding position to a release position to thereby release the hammer from retainment by the sear, allowing the hammer to move back to its battery position, and causing a second subsequent discharge of the firearm wherein the first discharge is independent of electrical energy supplied to the electro-mechanical mover.

13. A method as in Claim 12 further comprising releasing the sear from the mover after the sear releases the hammer, the sear being biased back to its holding position by a spring.

14. A method as in Claim 12 wherein the step of moving the sear comprises a controller moving the mover from the holding position to the release position after a predetermined period of time.

15. A method as in Claim 14 wherein the predetermined period of time is measured from an occurrence of a predetermined event.

16. In a firearm having a firing mechanism with a hammer, a trigger with a sear for engaging a sear surface on the hammer to retain the hammer at a cocked position, and a semi-automatic sear, the improvement comprising:

an electro-mechanical movement mechanism for moving the automatic sear from a hammer retaining position to a hammer release position.

17. A firearm as in Claim 16 wherein the electromechanical movement mechanism comprises a piezoelectric member connected to an actuator.

18. A firearm as in Claim 17 wherein the piezoelectric member has a substantially flat shape in an uncharged state with the actuator passing through a center of the piezoelectric member.

19. A firearm as in Claim 18 wherein the actuator is pivotally connected to the piezoelectric member.

20. A firearm as in Claim 19 wherein the electromechanical movement mechanism further comprises a cam and a spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards a hammer release position to move the actuator away from the automatic sear.

21. A firearm as in Claim 16 further comprising a battery assembly electrically connected to the electromechanical movement mechanism, the assembly having multiple batteries and a switch to switch electrical connection of the batteries with the movement mechanism.

22. A firearm as in Claim 16 further comprising an electrical generator connected to the electro-mechanical movement mechanism.

23. A firearm as in Claim 22 wherein the generator comprises a piezoelectric member that is deformed by movement of a portion of the firing mechanism after the firearm is fired to supply electricity to the firing mechanism.

24. In a firearm having a firing mechanism that is at least partially electrically controlled, the improvement comprising:

a generator connected to the firing mechanism, the generator including a piezoelectric member that is deformed by movement of a portion of the firing mechanism to supply electricity to the firing mechanism.

25. A firearm as in Claim 24 wherein the piezoelectric member is located to be deformed by the portion after a discharge of the firearm' as the portion is moved after the discharge.

26. A method of firing a firearm comprising steps of: providing the firearm with an electrical firing system; and

preventing the electrical firing system from operating unless a mechanical trigger system of the firearm causes a first discharge of the firearm.

AMENDED CLAIMS
[received by the International Bureau on 13 May 1997 (13.05.97);
original claims 16 and 26 amended; original claims 24 and 25 cancelled; original claim 26 renumbered as claim 24; remaining claims unchanged (5 pages)]

1. A firearm firing mechanism comprising:

a hammer;

means for semi-automatic firing having a trigger
with a first sear for engaging a first sear
surface on the hammer and a disconnector movably
connected to the trigger, the disconnector having
a second sear for engaging a second sear surface
on the hammer; and

means for automatic firing having an electromechanical movement mechanism for moving an
automatic sear out of engagement with a third
sear surface on the hammer wherein the automatic
firing means is only operable after the trigger
releases the hammer from mechanical engagement at
the first sear surface.

2. A firearm firing mechanism as in Claim 1 wherein
the electro-mechanical movement mechanism comprises a
piezoelectric member connected to an actuator.

3. A firearm firing mechanism as in Claim 2 wherein
the piezoelectric member has a substantially flat shape in
an uncharged state with an aperture therethrough and the
actuator passing through the aperture.

4. A firearm firing mechanism as in Claim 3 wherein
the actuator is pivotally connected to the piezoelectric
member .

5. A firearm firing mechanism as in Claim 4 wherein
the movement mechanism further comprises a cam and a spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards an automatic sear release position.

6. A firearm firing mechanism comprising:

a hammer;

an automatic sear having a first section for engaging a sear surface on the hammer, a second section for movement by a selector, and a third section; and

an electro-mechanical movement mechanism for moving the automatic sear, the movement mechanism comprising an actuator and a piezoelectric member for moving the actuator, wherein as the piezoelectric member is moved from a first position to a second position the actuator is moved by the piezoelectric member to move the third section of the sear and thereby move the first section of the sear out of engagement with the sear surface on the hammer.

7. A firearm firing mechanism as in Claim 6 further comprising a semi-automatic firing system comprising a trigger with a first sear and a disconnector movably connected to the trigger with a second sear.

8. A firearm firing mechanism as in Claim " further comprising means for allowing the firing mechanism to operate only after mechanical release of the hammer from the trigger at the first sear.

9. A firearm firing mechanism as m Claim wherein the piezoelectric member has a substantially flat shape in an uncharged state with the actuator passing through its center .

10. A firearm firing mechanism as in Claim 9 wherein the actuator is pivotally connected to the piezoelectric member .

11. A firearm firing mechanism as in Claim 6 further comprising a cam and a spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards an automatic sear release position.

12. A method of firing a firearm comprising the steps of:

moving a trigger of the firearm to thereby release a mechanical interlock of the trigger with a hammer of the firearm, the release of the mechanical interlock allowing the hammer to move from a first cocked position to a battery position to cause a first discharge of the firearm;

retaining the hammer at a second cocked position by a sear of the firearm when the hammer is moved back from its battery position after the first discharge; and

moving the sear by an electro-mechanical mover from a holding position to a release position to thereby release the hammer from retainment by the sear, allowing the hammer to move back to its battery position, and causing a second subsequent discharge of the firearm wherein the first discharge is independent of electrical energy supplied to the electro-mechanical mover.

13. A method as in Claim 12 further comprising releasing the sear from the mover after the sear releases the hammer, the sear being biased back to its holding position by a spring.

14. A method as in Claim 12 wherein the step of moving the sear comprises a controller moving the mover from the holding position to the release position after a predetermined period of time.

15. A method as in Claim 14 wherein the predetermined period of time is measured from an occurrence of a predetermined event .

16. In a firearm having a firing mechanism with a hammer, a trigger with a trigger sear for engaging a sear surface on the hammer to retain the hammer at a cocked position, an automatic sear, and a semi-automatic sear, the improvement comprising:

an electro-mechanical movement mechanism for moving the automatic sear from a hammer retaining position to a hammer release position, wherein the movement mechanism does not affect operation of the semi-automatic sear or the trigger sear.

17. A firearm as in Claim 16 wherein the electromechanical movement mechanism comprises a piezoelectric member connected to an actuator.

18. A firearm as in Claim 17 wherein the piezoelectric member has a substantially flat shape in an uncharged state with the actuator passing through a center of the piezoelectric member.

19. A firearm as in Claim 18 wherein the actuator is pivotally connected to the piezoelectric member.

20. A firearm as in Claim 19 wherein the electromechanical movement mechanism further comprises a cam and a spring, the spring biasing the actuator towards the cam and the cam engaging a cam surface on the actuator when the actuator is moved by the piezoelectric member towards a hammer release position to move the actuator away from the automatic sear.

21. A firearm as in Claim 16 further comprising a battery assembly electrically connected to the electromechanical movement mechanism, the assembly having multiple batteries and a switch to switch electrical connection of the batteries with the movement mechanism.

22. A firearm as in Claim 16 further comprising an electrical generator connected to the electro-mechanical movement mechanism.

23. A firearm as in Claim 22 wherein the generator comprises a piezoelectric member that is deformed by movement of a portion of the firing mechanism after the firearm is fired to supply electricity to the firing mechanism.

24. A method of firing a firearm comprising steps of:

providing the firearm w th an electrical firing system; and

preventing the electrical firing system from operating unless a mechanical trigger system of the firearm causes a first discharge of the firearm.