Firearm bolt assembly with a pivoting handle
View Patent ↗Firearms and bolt mechanisms are disclosed herein. The firearm can include a bolt assembly configured to provide leverage for extracting a cartridge. The bolt body can include a main cylindrical body, handle, and a pivot pin extending through a portion of the handle within the cylindrical body. The handle can be rotated relative to the main cylindrical body to push the bolt assembly along an internal passageway of the receiver.
1. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver and positionable between the receiver shoulder and an ejection port of the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm.
2. The assembly of claim 1 , wherein the handle pin is directly between the handle shoulder and the arm.
3. The assembly of claim 1 , wherein the handle shoulder and the arm are positioned on opposites sides of a midplane plane of the bolt mechanism.
4. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm, wherein the handle has a main body between the arm and the handle shoulder,
wherein at least a portion of the main body is positioned within the bolt body and includes
a pin opening through which the handle pin extends, and
a firing pin assembly opening configured to receive at least a portion of a firing pin assembly.
5. An assembly for a firearm, comprising:
a receiver having a receiver shoulder;
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm; and
a firing pin assembly passing through the handle pin.
6. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm, wherein the handle pushes the bolt mechanism away from the chamber when the handle is rotated rearwardly, and
wherein the bolt mechanism is configured to generate a force for displacing the bolt body rearwardly to cause extraction of the cartridge from the chamber of the firearm.
7. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm wherein the handle includes a firing pin assembly opening larger than a firing pin extending through the bolt mechanism to allow sufficient rotation of the handle about the handle pin to displace a cartridge case relative to the chamber.
8. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm,
wherein the handle is movable from a lower forward position for firing the firearm to a raised forward position for allowing extraction of a cartridge case, wherein the handle shoulder contacts the receiver when the handle is rotated rearwardly away from the raised forward position.
9. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm, wherein the handle includes
a pivot hole through which the handle pin extends, and
a firing pin assembly hole configured to receive a firing pin assembly such that the handle rotates relative to the firing pin assembly when the handle rotates relative to the bolt body.
10. The assembly of claim 9 , wherein the pivot hole intersects the firing pin assembly hole.
11. An assembly for a firearm, comprising:
a receiver having a receiver shoulder; and
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm,
wherein the handle pin defines a handle axis of rotation that extends through a firing pin assembly.
12. An assembly for a firearm, comprising:
a receiver having a receiver shoulder;
a bolt mechanism including
a bolt body positionable in the receiver,
a handle pin, and
a handle extending through the bolt body and having an arm and a handle shoulder, wherein the arm and the handle shoulder are positioned on opposing longitudinal sides of the bolt body such that the handle shoulder contacts the receiver while the handle is rotated to lever the bolt mechanism rearwardly along the receiver, thereby extracting at least a portion of a cartridge from a chamber of the firearm; and
a firing pin assembly extending through a portion of the handle positioned within the bolt body.
13. A bolt mechanism for a bolt action rifle, comprising:
a cylindrical main body;
a handle attached to the cylindrical main body by a pivot pin which engages the cylindrical main body; and
a firing pin assembly extending through a portion of the handle within the cylindrical main body, wherein the firing pin assembly passes through the pivot pin.
14. The bolt mechanism of claim 13 , wherein the handle is coupled to the cylindrical main body via a pinned connection.
15. The bolt mechanism of claim 13 , wherein the handle is configured to cause translation of the cylindrical main body along a receiver while the main body is substantially rotationally fixed relative to the receiver.
16. A bolt mechanism for a bolt action rifle comprising:
a cylindrical main body,
a handle pivotally connected to the cylindrical main body and having a short portion and a long portion, wherein the short portion protrudes from the side of the cylindrical main body opposite the long portion and is positionable to contact a receiver so that the bolt mechanism is levered in a rearward direction by rotation of the handle to extract a cartridge case from the chamber; and
a firing pin assembly extending through a portion of the handle within the cylindrical main body.