Patent ID: 8894404

Claim:
A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic preforms can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, wherein the blow mould holder has at least two mould holder elements for receiving parts of the blow mould unit, and comprising a locking mechanism in order to arrest at least a part of the blow mould unit in relation to at least one mould holder element, said locking mechanism having an engagement member that can be pivoted and/or displaced in relation to a specified axis (X), which engagement member rests in an arrested condition of part of the blow mould unit in relation to a mould holder element on a section of part of the blow mould unit, wherein the locking mechanism has an actuating member, in order to release an arrest between the mould holder element and the blow mould unit, and a movement of this actuating member is coupled to the movement of the engagement member, wherein a spring member is provided in order to pretension the engagement member.