Findlay, David S.;

Locking mechanism for firearms

A locking mechanism for use in a wide variety of firearms to assist in securing the firearm from unauthorized use, the locking mechanism being rotatable between an unlocked position where it allows movement of the firing pin and a locked position where it prevents movement of the firing pin.

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I claim:

1. A firearm having a firing pin and a locking mechanism comprising:

a lock button, rotatable between

an unlocked position, wherein the lock button permits movement of the firing pin, and

a locked position, wherein the lock button prevents movement of the firing pin,

wherein the lock button comprises a longitudinal axis, a surface, and a first end and a second end, and;

i. a locking aperture formed along the longitudinal axis of the button and comprising a female receiving end formed in the first end of the button;

ii. a notch formed in the surface of the button between the first and second ends of the button; and

iii. a plunger aperture formed in the surface of the button between the first and second ends of the button, and

wherein the locking mechanism further comprises a detent plunger, and a locking means for insertion into the female receiving end of the locking aperture of the safety button, and

wherein the plunger aperture is connected to the locking aperture, and

wherein the firing pin has a notch formed therein positioned and configured to interact with the notch of the lock button.

2. A firearm having a locking mechanism of claim 1 wherein the plunger aperture extends substantially transverse to the longitudinal axis of the button toward the central axis of the button to connect with the longitudinal locking aperture.

3. A firearm having a locking mechanism of claim 1 wherein the locking means is adapted to interact with the plunger aperture when inserted into the female receiving end.

4. A firearm having a locking mechanism of claim 1 wherein the detent plunger is urged towards the safety button by a spring.

5. A firearm having a locking mechanism of claim 1 further comprising a rotational position indicator formed on one end of the lock button.

6. A firearm having a locking mechanism of claim 1 wherein the locking means is a key.

7. A firearm having a locking mechanism of claim 6 wherein the key has a substantially "J" shaped cross sectional configuration.

8. A firearm having a locking mechanism of claim 1 wherein the locking means is a key adapted to urge the detent plunger away from the lock button when the key is inserted into the locking aperture.

9. A firearm having a locking mechanism of claim 8 wherein the locking means is adapted to interact with the plunger aperture only when the locking means is fully inserted into the female receiving end.

10. A firearm having a locking mechanism of claim 1 wherein the lock button further comprises at least one longitudinal slot and the firing pin further comprises a tab adapted to interact with the at least one slot to prevent movement of the firing pin.

11. A firearm having a locking mechanism of claim 10 wherein the lock button comprises two parallel longitudinal slots and the firing pin further comprises a tab adapted to interact with either slot to prevent movement of the firing pin.

12. A bolt action firearm having

a bolt assembly comprising a hollow bolt body, a bolt handle, a bolt plug, a firing pin and firing pin spring within the bolt body, and

a locking mechanism comprising a lock button having a longitudinal axis, a surface, and a first end and a second end, and comprising;

i. a locking aperture formed along the longitudinal axis of the button and comprising a female receiving end formed in the first end of the button;

ii. a notch formed in the surface of the button between the first and second ends of the button; and

iii. a plunger aperture formed in the surface of the button between the first and second ends of the button and connected to the locking aperture, and

wherein the locking mechanism further comprises a detent plunger, and a locking means for insertion into the female receiving end of the locking aperture of the safety button, and

wherein the lock button is moveable among a locked and an unlocked position, and

wherein the firing pin has a notch formed therein positioned and configured to interact with the notch of the lock button to permit movement of the firing pin when the lock button is in the unlocked position and to prevent movement of the firing pin when the lock button is in the locked position.

13. A firearm of claim 12 wherein the locking mechanism is positioned within the bolt assembly.

14. A firearm of claim 13 wherein the locking mechanism is positioned within the bolt plug.

15. A firearm of claim 12 further comprising a receiver wherein the bolt assembly is moveably mounted, and wherein the locking mechanism is positioned in the receiver, and wherein the lock button is positioned to contact the bolt assembly to prevent movement thereof when the lock button is in the locked position, and wherein the lock button is positioned to permit movement of the bolt assembly when in the unlocked position.

16. A firearm of claim 12 further comprising a receiver wherein the bolt assembly is moveably mounted, and wherein the locking mechanism is positioned in the receiver, and wherein the lock button is positioned to contact the bolt assembly and the firing pin to prevent movement thereof when the lock button is in the locked position, and wherein the lock button is positioned to permit movement of the bolt assembly and firing pin when in the unlocked position.

17. A firearm of claim 12 wherein the lock button further comprises at least one longitudinal slot formed therein and the firing pin further comprises a tab adapted to interact with the at least one slot to prevent movement of the firing pin.

18. A firearm of claim 17 wherein the lock button comprises two parallel longitudinal slots and the firing pin further comprises a tab adapted to interact with either slot to prevent movement of the firing pin.

19. A firearm having a firing pin and a locking mechanism comprising:

A. a lock button having a longitudinal axis, a surface, a first end and a second end, and comprising:

i. a locking aperture formed along the longitudinal axis of the button comprising a female receiving end formed in the first end of the button;

ii. a notch formed in the surface of the button between the first and second ends of the button;

iii. a plunger aperture formed in the surface of the button between the first and second ends of the button, extending substantially transverse to the longitudinal axis of the button toward the central axis of the button and connecting with the substantially longitudinal locking aperture;

iv. a plunger channel formed in the surface of the button between the first and second ends thereof, and connected to the plunger aperture;

B. a detent plunger;

C. a spring positioned to bias the detent plunger towards the lock button and into a position where the detent plunger interacts with the plunger aperture and plunger channel; and

D. a key adapted for insertion into the female receiving end of the locking aperture of the button, wherein the key is adapted to interact with the plunger aperture when inserted into the female receiving end; and

wherein the firing pin has a notch formed therein and adapted to interact with the notch of the lock button.

20. A firearm having a locking mechanism of claim 19 wherein the detent plunger interacts with the plunger channel to retain the lock button and to define and restrict the rotational movement of the button.

21. A firearm having a locking mechanism of claim 19 wherein the key has a substantially curved cross sectional configuration.

22. A firearm of claim 19 wherein the lock button further comprises at least one longitudinal slot formed therein and the firing pin further comprises a tab adapted to interact with the at least one slot to prevent movement of the firing pin.

23. A firearm of claim 22 wherein the lock button comprises two parallel longitudinal slots and the firing pin further comprises a tab adapted to interact with either slot to prevent movement of the firing pin.