In a fixing member 110 formed with an insertion hole 113 for inserting an elevation rod 111, a communication hole 114 communicating with the insertion hole 113 is formed to open at a side surface of the fixing member 110. A key member 112 is inserted into the communication hole 114 and engaged with a key groove 118 provided at the distal end of the elevation rod 111. By so doing, the elevation rod 111 and the fixing member 110 are coupled together.

In a fixing member 110 formed with an insertion hole 113 for inserting an elevation rod 111, a communication hole 114 communicating with the insertion hole 113 is formed to open at a side surface of the fixing member 110. A key member 112 is inserted into the communication hole 114 and engaged with a key groove 118 provided at the distal end of the elevation rod 111. By so doing, the elevation rod 111 and the fixing member 110 are coupled together.

An apparatus for blow-molding plastic containers includes at least one blow-molding station that defines at least one molding cavity for forming plastic containers. The blow-molding station includes two lateral bodies and, for each forming cavity defined by the blow-molding station, a bottom. The bottom includes an external body of the bottom that defines an annular portion that extends around the axis of extension of the respective forming cavity, and an internal body that can be accommodated at least partially inside the annular portion, between the external lateral surface of the internal body and the internal surface of the annular portion there being at least one air evacuation opening that extends around the axis of extension and is connected to first air evacuation elements. The internal body is adjustably movable on command with respect to the annular portion along the axis of extension.

An apparatus for blow-molding plastic containers includes at least one blow-molding station that defines at least one molding cavity for forming plastic containers. The blow-molding station includes two lateral bodies and, for each forming cavity defined by the blow-molding station, a bottom. The bottom includes an external body of the bottom that defines an annular portion that extends around the axis of extension of the respective forming cavity, and an internal body that can be accommodated at least partially inside the annular portion, between the external lateral surface of the internal body and the internal surface of the annular portion there being at least one air evacuation opening that extends around the axis of extension and is connected to first air evacuation elements. The internal body is adjustably movable on command with respect to the annular portion along the axis of extension.

A producing method for a resin container includes a first injection molding step of injection-molding an intermediate molded body that has a bottomed cylindrical shape and is made of resin, a second injection molding step of injection-molding a resin material into the intermediate molded body to produce a multilayer preform in which a resin layer is laminated on the intermediate molded body, and a blow molding step of blow-molding the multilayer preform in a state of having residual heat from injection molding to produce a resin container. The multilayer preform is formed such that a bottom portion is thicker than a body portion. In the blow molding step, at least one surface of the bottom portion of the multilayer preform is pressed with a mold, and a three-dimensional pattern corresponding to the mold is transferred to a thick bottom portion of the resin container.

A producing method for a resin container includes a first injection molding step of injection-molding an intermediate molded body that has a bottomed cylindrical shape and is made of resin, a second injection molding step of injection-molding a resin material into the intermediate molded body to produce a multilayer preform in which a resin layer is laminated on the intermediate molded body, and a blow molding step of blow-molding the multilayer preform in a state of having residual heat from injection molding to produce a resin container. The multilayer preform is formed such that a bottom portion is thicker than a body portion. In the blow molding step, at least one surface of the bottom portion of the multilayer preform is pressed with a mold, and a three-dimensional pattern corresponding to the mold is transferred to a thick bottom portion of the resin container.

A blow molding tool (1) for a blow molding machine (1). The blow molding tool (1) comprises at least one first blow mold half (2) and one second blow mold half (3). The first blow mold half (2) has a baseplate (4) and a molding body (5). At least one mold cavity (6) with an inner wall (51) is arranged in the molding body (5). At least one region (511) of the inner wall (51) of the mold cavity (6) comprises, in the associated section of the molding body (5), separate temperature control channels (54) for controlling the temperature of the region (54).

A blow molding tool (1) for a blow molding machine (1). The blow molding tool (1) comprises at least one first blow mold half (2) and one second blow mold half (3). The first blow mold half (2) has a baseplate (4) and a molding body (5). At least one mold cavity (6) with an inner wall (51) is arranged in the molding body (5). At least one region (511) of the inner wall (51) of the mold cavity (6) comprises, in the associated section of the molding body (5), separate temperature control channels (54) for controlling the temperature of the region (54).

A blow molding machine assembly configured to be mounted to a blow molding machine to move a mold base configured to form a container base. The blow molding machine assembly includes an over-stroke cylinder and a counter-stretch rod. The over-stroke cylinder is configured to move the mold base between an extended base position and a retracted base position. The counter-stretch rod is movable between a retracted rod position in which the counter-stretch rod does not extend out from within the mold base, and an extended rod position in which the counter-stretch rod extends out from within the mold base.

A blow molding machine assembly configured to be mounted to a blow molding machine to move a mold base configured to form a container base. The blow molding machine assembly includes an over-stroke cylinder and a counter-stretch rod. The over-stroke cylinder is configured to move the mold base between an extended base position and a retracted base position. The counter-stretch rod is movable between a retracted rod position in which the counter-stretch rod does not extend out from within the mold base, and an extended rod position in which the counter-stretch rod extends out from within the mold base.