Patent ID: 8307676

Claim:
An openable and closable two-pronged body restraining device comprising: a restraint unit provided at one end of an operating rod, wherein the restraint unit comprises a pair of gripping members independent from each other and each having a curved inner surface; a lock unit provided at another end within the operating rod, wherein the lock unit comprises: a rack-type engagement portion having saw-toothed projections formed on a sliding member attached to a sliding bar, and a locking portion having a locking piece to be engaged with the rack-type engagement portion; a supporting member being attached to a front end of the sliding bar, which is slidably inserted into the operating rod, wherein the pair of gripping members are attached to the supporting member; a pair of swinging plates being attached to respective ends of a supporting portion from one ends and being pivotally attached to the respective pair of gripping members from the other ends, wherein the supporting portion is attached to a front end of said operating rod, wherein the supporting member and the sliding bar are pivotally connected to each other and the swinging plates are formed of flexible members so as to cause an angle between the gripping members and the operating rod to be changeable, and wherein the lock unit is configured such that when the rack-type engagement portion and the locking piece are engaged with each other, the sliding member is allowed to slide only in a direction toward a rear end of the operating rod causing the supporting member to retract and thereby closing the pair of gripping members.