Pressing device for a hose coupler

Claim 1

A hose coupler compressor comprising: a lower die on which an external pipe of said hose coupler is placed; an upper vertically movable pressing element; and a pair of side dies engageable by said pressing element and disposed between said lower die and said pressing element, and movable downwardly and inwardly toward the center of the external pipe by means of outwardly facing sloping side surfaces thereof cooperating with inwardly facing sloping surfaces fixed relative to said lower die; whereby upon downward movement of the pressing element the end of a hose is held between the internal and external pipes of a hose coupler, and said external pipe is pressed on its outer periphery and deformed by said dies so that the hose end is secured to the hose coupler; and means suspending each side die from said vertically movable pressing element for limited vertical and transverse movement relative to said vertically movable element so that said side dies separate laterally from the external pipe and are lifted upwardly during upward movement of the pressing element.