Firing blocker mechanism for firearm

1. An auto-loading firearm with striker firing mechanism comprising:

a longitudinal axis;

a frame;

a barrel defining a chamber for holding a cartridge;

an elongated striker movable along the longitudinal axis in a linear path to strike a chambered cartridge;

a sear pivotably disposed in the frame and configured to hold the striker in a rearward cocked position;

a blocker movable from a non-blocking position to a blocking position obstructing the linear path of the striker;

a blocker lifter pivotably disposed in the frame and operably linked to a trigger mechanism having a trigger; and

a biasing member urging the blocker into the blocking position;

wherein pulling the trigger rotates the blocker lifter which engages and moves the blocker from the blocking position to the non-blocking position allowing the firearm to be discharged;

wherein rotation of the blocker lifter engages and rotates the sear to release the striker from the cocked position for discharging the firearm.

2. The firearm of claim 1 , wherein the blocker lifter has a first surface engageable with the blocker and a second surface engageable with the sear.

3. The firearm of claim 2 , wherein the first and second surfaces are located below a pivot axis of the blocker lifter.

4. The firearm of claim 1 , wherein the sear and blocker lifter are pivotably mounted on a common pivot axis.

5. The firearm of claim 1 , wherein the blocker lifter comprises a forward extending actuating arm defining an upward facing surface which engages a bottom facing surface on an underside of the blocker.

6. An auto-loading firearm with striker firing mechanism comprising:

a longitudinal axis;

a frame;

a barrel defining a chamber for holding a cartridge;

an elongated striker movable along the longitudinal axis in a linear path to strike a chambered cartridge;

a sear pivotably disposed in the frame and configured to hold the striker in a rearward cocked position;

a blocker movable from a non-blocking position to a blocking position obstructing the linear path of the striker;

a blocker lifter pivotably disposed in the frame and operably linked to a trigger mechanism having a trigger; and

a biasing member urging the blocker into the blocking position;

wherein pulling the trigger rotates the blocker lifter which engages and moves the blocker from the blocking position to the non-blocking position allowing the firearm to be discharged;

wherein the blocker lifter includes a laterally extending actuating post arranged to engage the trigger bar for rotating the blocker lifter via a trigger pull.

7. The firearm of claim 1 , wherein the blocker lifter is disposed laterally adjacent the sear, the blocker lifter being configured to engage the sear in a manner such that rotating the blocker lifter simultaneously rotates the sear to release the striker from the cocked position.

8. The firearm of claim 7 , wherein the sear includes a rearwardly open recess that receives and engages a lateral protrusion of the blocker lifter for rotating the sear.

9. The firearm of claim 1 , wherein the blocker is linearly movable in a vertical direction between the non-blocking and blocking positions.

10. An auto-loading firearm with striker firing mechanism comprising: further comprising a lower blocking extension extending downwards from the blocker, the blocking extension defining a rear facing blocking surface arranged to engage a corresponding forward facing engagement surface of a striker catch protrusion when the blocker is in the blocking position to arrest forward movement of the striker;

a longitudinal axis;

a frame;

a barrel defining a chamber for holding a cartridge;

an elongated striker movable along the longitudinal axis in a linear path to strike a chambered cartridge;

a sear pivotably disposed in the frame and configured to hold the striker in a rearward cocked position;

a blocker movable from a non-blocking position to a blocking position obstructing the linear path of the striker;

a blocker lifter pivotably disposed in the frame and operably linked to a trigger mechanism having a trigger; and

a biasing member urging the blocker into the blocking position;

a lower blocking extension extending downwards from the blocker, the blocking extension defining a rear facing blocking surface arranged to engage a corresponding forward facing engagement surface of a striker catch protrusion when the blocker is in the blocking position to arrest forward movement of the striker;

wherein the blocker is linearly movable in a vertical direction between the non-blocking and blocking positions;

wherein pulling the trigger rotates the blocker lifter which engages and moves the blocker from the blocking position to the non-blocking position allowing the firearm to be discharged.

11. The firearm of claim 1 , further comprising a reciprocating slide slideably disposed on the frame.

12. An auto-loading firearm with striker firing mechanism comprising:

a longitudinal axis;

a frame;

a reciprocating slide disposed on the frame;

a barrel defining a chamber for holding a cartridge;

a spring-biased striker movable in a linear path between rearward and forward positions for striking a chambered cartridge, the striker including a catch protrusion;

a trigger mechanism including a trigger bar coupled to a trigger pivotably mounted to the frame, the trigger bar movable in rearward and forward axial directions via operation of the trigger;

a sear pivotably disposed in the frame and operable to engage the catch protrusion for holding the striker in a rearward cocked position;

a blocker having a blocking surface movable from a non-blocking position to a blocking position obstructing the linear path of the striker;

a blocker lifter pivotably disposed in the frame and operably linked to the trigger mechanism and sear; and

a biasing member urging the blocker into the blocking position;

wherein pulling the trigger rotates the blocker lifter which engages and moves the blocker from the blocking position to the non-blocking position allowing the firearm to be discharged; and

wherein rotating the trigger further moves the sear to disengage the catch protrusion and release the striker from the cocked position;

wherein the trigger bar moves axially forward upon pulling the trigger and in turn rotates the blocker lifter for moving the blocker.

13. The firearm of claim 12 , wherein the blocker lifter includes a laterally extending actuating post arranged to engage the trigger bar for rotating the blocker lifter via a trigger pull.

14. The firearm of claim 13 , wherein the actuating post engages an operating window formed in an enlarged rear end portion of the trigger bar.

15. The firearm of claim 12 , wherein the blocker lifter comprises a forward extending actuating arm defining an upward facing surface which engages a bottom facing surface on an underside of the blocker.

16. The firearm of claim 12 , wherein the sear and blocker lifter are pivotably mounted on a common pivot axis.

17. A method for discharging a firearm comprising:

providing a firearm having a longitudinal axis, a frame, a trigger mechanism, a striker movable forward and rearward along the longitudinal axis in a linear path, and a blocker movable into and out of the linear path;

biasing the blocker into the linear path;

pulling a trigger of the trigger mechanism;

rotating a blocker lifter with the trigger mechanism which moves the blocker out of the linear path;

rotating a sear holding the striker in a rearward cocked position to release the striker; and

moving the striker in a forward direction along the linear path for discharging the firearm;

wherein the blocker lifter engages and rotates the sear by rotating the blocker lifter with the trigger mechanism.

18. The method of claim 17 , wherein the blocker moves in a vertical linear direction between a blocking position in the linear path and a non-blocking position out of the linear path.

19. A method for discharging a firearm comprising:

providing a firearm having a longitudinal axis, a frame, a trigger mechanism, a striker movable forward and rearward along the longitudinal axis in a linear path, and a blocker movable into and out of the linear path;

biasing the blocker into the linear path;

pulling a trigger of the trigger mechanism;

rotating a blocker lifter with the trigger mechanism which moves the blocker out of the linear path;

rotating a sear holding the striker in a rearward cocked position to release the striker; and

moving the striker in a forward direction along the linear path for discharging the firearm;

wherein pulling the trigger moves a trigger bar engaged with the blocker lifter in an axial forward direction to rotate the blocker lifter.