Patent ID: 11906264
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An adjustable forend mechanism comprising:
at least one forend lock, wherein one end of the forend lock is exposed outside of a casing and the other end has a cylindrical structure;
at least one lock nail which is formed on a bottom surface of the at least one forend lock;
at least one lock spring which can be engaged with the cylindrical structure of the at least one forend lock;
at least one lock wedge which is located behind the at least one lock spring and is fixed on the casing through at least one lock wedge pin;
at least one adjustable forend which has at least one lock gear on its inner surface;
a forend lock channel located on the at least one forend lock;
at least one adjustable forend pivot point located on the at least one adjustable forend;
a casing channel located on the casing, wherein the forend lock channel, the at least one adjustable forend pivot point, and the casing channel are aligned together; and
a forend pin located in the aligned the forend lock channel, the at least one adjustable forend pivot point, and the casing channel.