摘要:
The technical problem to be solved by this invention is to design a bottle shape that improves the bottle rigidity and strength in the lateral direction, without increasing the cost of material required to thicken the bottle wall. The object of this invention is to provide a synthetic resin bottle at a low cost in such a way that the bottles can be used smoothly on the carrier line, in the vending machines, and in storage on the stacks with no deformation, and are capable of performing a vacuum-absorbing function enough to be used in hot filling. Multiple pillar sections in a projected strip-like shape are disposed on the body of a synthetic resin bottle, wherein the pillar sections are inclined spirally at a uniform angle of gradient (α) relative to central axis of the bottle and disposed in parallel to one another, so that the cylindrical body wall is prevented from being deformed by the pressure force that acts in a lateral direction.
摘要:
In a bottle-shaped synthetic resin container having a body part of substantially rectangular tubular shape, groove ribs, having a comparatively wide vertical groove form, are depressingly provided at the centers in the width direction of flat wall portions of shoulder lower end parts, which are portions of a shoulder part that connect with the body part, to make these portions higher in rigidity and difficult to deform and, even when a deformation occurs, prevent the deformation from becoming a permanent deformation. Safe handling of the container is thus promoted, especially for the stacked storage of containers in a sideways-laid orientation.
摘要:
The gas-venting groove or grooves are formed, while leaving a part of the thread ridge (3) up to a certain height, as the vertical degassing paths in the thread ridge carved on the outer surface of the round neck wall and the entire neck is whitened by the thermal crystallization. This thermal crystallization is conducted under the condition that the neck is prevented from undesired deformation caused by uneven resin flow state. Thus, the object of this invention is to provide a highly safe neck that can be used widely in the field of heat-resistant containers, pressure-tight containers, and heat-resistant and pressure-tight containers.
摘要:
A PET bottle having structurally improved vacuum absorption panels in the bottle portion so as to increase the panels' resistance to the constricting force of the shrink label, to secure the force of restitution for the panels, and thereby to allow the liquid level in the bottle to lower when the cap is opened. Vacuum absorption panels comprising multiple, flat and variable surfaces, recessed from the plane of each corresponding main body wall; multiple, horizontal and grooved ribs, and having respectively a curved bottom with the middle portion of this bottom being slightly uplifted, and with each rib being placed under a variable surface in an alternately disposed manner.