초록 ▼

The mold halves of a blow mold device are mounted on a pair of arms encircling the mold halves in a semicircular arc which arms are latched together by latching means which are located at the parting line of the mold halves at both sides thereof. Due to this structure, merely the portion of the arms

The mold halves of a blow mold device are mounted on a pair of arms encircling the mold halves in a semicircular arc which arms are latched together by latching means which are located at the parting line of the mold halves at both sides thereof. Due to this structure, merely the portion of the arms extending between said latching means is subjected to bending forces by the blowing pressure. For swinging the arms and actuating the latching means a common slide is provided in parallel relationship to the longitudinal axis of the blow mold, which slide includes a number of control cams which are engaged by cam followers cooperating with said arms and said latching means. The invention provides a compact and light-weight construction allowing to actuate a smaller mass in shorter time, thus increasing the production capacity of the blow mold device.

대표청구항 ▼

A blow mold device for making hollow articles made of a plastic material in a blowing operation, comprising a pair of mold halves having mating faces, two pairs of arms, each of said mold halves being secured to one of each pair, said arms being pivotal in a horizontal plane about a vertical axis, a

A blow mold device for making hollow articles made of a plastic material in a blowing operation, comprising a pair of mold halves having mating faces, two pairs of arms, each of said mold halves being secured to one of each pair, said arms being pivotal in a horizontal plane about a vertical axis, and comprising a first latching mechanism provided at the free end of said arms for latching said free ends together in the closed position of the blow mold, characterized in that said arms each encircle said mold halves in an approximately semicircular arc and that a second latching means is provided which is diametrically opposed to said first latching mechanism, said first and said second latching mechanisms lying substantially in the same plane as said mating faces when said blow mold is in its closed position.