JPS649112U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram showing this invention, Fig. 2A is a front view of a conventionally known lightweight glass bottle, Fig. 2B is a bottom view showing the bottom of the same bottle, and Fig. 3 is an enlarged view of the part shown in Fig. 2B. Figure 4 is a vertical cross-sectional view along the center line of the opening in Figure 3, Figure 5 is a table showing the origin of damage, Figures 6A and 6B are the contact between the satin-shaped protrusion and the ring of the net conveyor. It is a schematic diagram for explaining a part. 1... Lightweight glass bottle, 2... Bottle bottom, 3... Satin-shaped protrusion, 4... Net conveyor ring.

Claims (1)

[Scope of Claim for Utility Model Registration] In a glass bottle in which a large number of satin-like protrusions are formed at a predetermined pitch in the circumferential direction on the periphery of the bottom of the bottle that comes into contact with a transport net conveyor, the radius of curvature of the satin-like protrusions is defined as r. _1. A glass bottle characterized by having the following relationship, where r ₂ is the radius of curvature of the ring constituting the net conveyor, and P is the pitch between the satin-like protrusions.