DESCRIZIONE
A two-pronged body restraining device includes a restraint unit provided at one end of an operating rod and a lock unit provided at the other end within the operating rod. The restraint unit includes a pair of griping members pivotably attached to a supporting member secured to the front end of a sliding bar. The sliding bar is slidably inserted into the operating rod and a pair of swinging plates, which are pivotably attached to a supporting element in which the sliding bar is slidably inserted. The lock unit is comprised of a rack-type engagement portion having saw-toothed projections, and a locking portion having a locking piece to be engaged with the rack-type engagement portion. The lock unit is configured to slide the sliding member only toward the rear end of the operating rod causing the pair of griping members to be closed when the supporting member is moved backwardly.