PLASTIC BOTTLE BODY AND COMBINATION OF SUSTAINED USE CONTAINER AND REFILL CONTAINER

摘要

Technical problems to be solved by this invention is to create a bottle shape that can allow for volume-reducing deformation of a peripheral wall of the body that takes place along with inside depressurization, while maintaining stable posture of the bottle, to attain at stable refill work for a content fluid, and to obtain a favorable waste disposal condition for the refill container, by making use of a combination of a refill container and a regularly used container having an upright discharge cylinder segment. A means of solving above-described problems is a bottle having the following features: The body is formed to have a thin peripheral wall so that volume-xeducing deformation would take place along with the depressurization going on inside the bottle. The peripheral wall has three ridge lines formed in a mountain fold at approximately equal intervals in the vertical direction and has three panel walls connected to one another. Each panel wall is bordered by two adjacent ridge lines, and has a valley fold line that diagonally connects an upper end of one ridge line to a lower end of another adjacent ridge line so that three valley fold lines are disposed obliquely in parallel along a circumferential direction