An invention including a bottle container of a pinch-grip type of synthetic resin blow-molded product and which includes a body of a bottle container, and a grip including a pair of right and left deep-recessed grip portions, formed by concaving both side wall portions of the body of the bottle container, a rear wall portion of the body disposed at a position rearward from the deep-recessed grip portions in a front-back direction, wherein each grip portion includes a caved in recessed wall, vertical side walls positioned facing each other across the wall, and lateral walls disposed at upper and lower ends of the wall, so that surrounding walls as a whole is formed by vertical walls and lateral walls that surround the recessed wall, and wherein the vertical side walls have an angle of gradient which is set at a right angle relative to a transverse center line extending horizontally.

A dust cover is configured to cover an outer side of a damper extending in a predetermined direction. The dust cover includes bellows portions and a flange portion. The bellows portions are inclined alternately toward a radially outer side and a radially inner side in an axial direction. The flange portion extends radially outward from a cylindrical portion of the dust cover. The flange portion protrudes radially outward from the cylindrical portion of the dust cover by a dimension larger than a height dimension in a radial direction between a radially inner end and a radially outer end of each of the bellows portions. A thickness of the flange portion is larger than a thickness of the radially outer end of each of the bellows portions.

A blow mold for making PET containers comprising an inner surface corresponding to the outer outline of the container, on which there are one or more cavities or projections configured to make corresponding respective projections or cavities of the outer surface of the container, wherein the mold comprises one or more venting grooves along the edge delimiting said cavities or projections. A plurality of venting holes are possibly arranged along such grooves, as well as it is also possible for some venting holes to be arranged outside thereof. The width and depth of these are selected according to the wall thickness of the container to be blown to prevent that the deformation of the container during the blowing obstructs the venting grooves and leaves visible marks on the container.

Disclosed is a molding unit for the forming of a container provided with a hollow recess, this molding unit including: a mold provided with a lateral wall defining a cavity and provided with a pocket that comes out into the cavity; and a boxing device. The boxing device includes: an insert mounted in translation relative to the lateral wall between a retracted position in which the insert is retracted into the pocket, and a deployed position in which the insert projects into the cavity outside of the pocket; an actuator integral with the insert and provided with a piston; and an added sleeve, mounted in a complementary recess made in the lateral wall and attached to it, and in which the piston is mounted in translation.

Disclosed is a molding unit for the forming of a container provided with a hollow recess toward the interior of the container, this forming unit including: a mold provided with a lateral wall defining a cavity having the impression of at least one part of the container and incorporating a fluid circuit for thermal regulation of the wall, which comes out on an upper surface of the mold; and a boxing device. The boxing device includes: an insert mounted in translation relative to the lateral wall; an actuator integral with the insert; and a pneumatic circuit for controlling the movement of the piston, which includes at least one primary duct for supplying the chamber, which comes out on the upper surface of the mold.

Molding unit (1) for the forming of a container (2) provided with a hollow recess (3), comprising: a mold (5) provided with a lateral wall (6) defining a cavity (7) and provided with a pocket (9) that comes out into the cavity (7); a boxing device (11) comprising: an insert (12) mounted in translation in the pocket (9) relative to the lateral wall (6) and provided with at least one passage (81) opening out; an actuator (16) integral with the insert (12) and provided with a piston (17) mounted in a chamber (22) defined in the wall (6) of the mold (5), the piston (17) subdividing the chamber (22) into a rear half-chamber (22A) in communication with a primary fluid duct (46), and a front half-chamber (22B) in communication, on the one hand, with a secondary fluid duct (50) and, on the other hand, with the pocket (9).

A method of manufacturing a container from a blank in a stretch blowing assembly equipped with a mold provided with a wall and a mold bottom axially movable between an extended position and a retracted position and a stretch unit having a rod axially movable with respect to the wall and a device for controlling the movement of the rod. The method involves a stretch blowing phase; a boxing phase during which the mold bottom, initially in the extended position, is moved towards its retracted position, the boxing phase having a retraction operation including controlling a movement of the rod in synchronization with the movement of the mold bottom, or releasing the rod to allow the free axial movement thereof.

Disclosed is a method for parametrizing a facility for producing containers including: a mold having a movable mold bottom, a movable drawing rod and an electric machine coupled with the rod; from a configuration in which the rod is in a raised position and in the bottom in an extended position, operating the electric machine as a motor; assessing the resultant of the axial forces on the rod; when a variation is detected in the resultant of the forces, assigning an initial position to the rod; controlling the movement of the mold bottom towards the retracted position thereof; assigning to the rod the corresponding so-called final position of the rod; and calculating the difference between the final position and the initial position.

A forming mold (311) is configured to include: a pair of split mold bodies (312) in which an intermediate molded product (61) is accommodated; a pair of handle holding split molds (312) provided in the split mold bodies (315) so as to be slidable in a direction orthogonal to the opening and closing direction of the split mold bodies, and sandwiching a handle (30) therebetween; and driving means (313) connected to the handle holding split molds (312) for sliding the handle holding split molds individually.

Blow molding tools and a method of blow molding which provide that the tool have a retractable push up section in the base which allows for the article molded by the tool to have a recessed base internal to an otherwise hollow structure. As the push up is moveable, adjustment of the push up portion can be performed during an automated blow molding operation so as to allow release of the blow molded article.