A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The proposed handcuff in the invention employs an innovative locking mechanism, which stops further tightening of the handcuff when the force applied on the wrist of hand or ankle of foot is greater than 1.5 lbs (or any preset value), and prevents physical injuries from over-tightening without compromising the restrain. A notch on the first tooth of the left/right stop pawl prevent the handcuff from being shimmed, a floating pawl keeps the middle stop pawl sticking with the stop ratchet when it moves 2-5 mm sideways. The handcuff is 50% faster in restraining by automatically locking instead of manually push-to-locking. The handcuff has the same shape/size/cost of the handcuffs currently used by police officer, and is compatible with current training procedure or SOP.
The proposed handcuff in the invention employs an innovative locking mechanism, which stops further tightening of the handcuff when the force applied on the wrist of hand or ankle of foot is greater than 1.5 lbs (or any preset value), and prevents physical injuries from over-tightening without compromising the restrain. A notch on the first tooth of the left/right stop pawl prevent the handcuff from being shimmed, a floating pawl keeps the middle stop pawl sticking with the stop ratchet when it moves 2-5 mm sideways. The handcuff is 50% faster in restraining by automatically locking instead of manually push-to-locking. The handcuff has the same shape/size/cost of the handcuffs currently used by police officer, and is compatible with current training procedure or SOP.
Automatic Handcuff with Floating Stop Pawl
YUAN DEFANG (author)
2023-06-22
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser