JPH0445208U

JPH0445208U -

Info

Publication number: JPH0445208U
Application number: JP8528390U
Authority: JP
Priority date: 1990-08-10
Filing date: 1990-08-10
Publication date: 1992-04-16
Anticipated expiration: 2005-08-10
Also published as: JP2536722Y2

Description

[Brief explanation of the drawing]

第１図ないし第５図は本考案の実施例を示し、
第１図は第１実施例の断面図、第２図は第２実施
例の断面図、第３図は第３実施例の断面図、第４
図は負圧吸収能力の実験方法を示す略図、第５図
は底部深度変位と吸収容量との関係を示すグラフ
図である。１……合成樹脂容器、２……底部、３……環状
接地部、４……第１傾斜面、５……環状屈曲部、
６……第２傾斜面、７……底板。 1 to 5 show embodiments of the present invention,
Figure 1 is a sectional view of the first embodiment, Figure 2 is a sectional view of the second embodiment, Figure 3 is a sectional view of the third embodiment, and Figure 4 is a sectional view of the third embodiment.
The figure is a schematic diagram showing an experimental method for negative pressure absorption capacity, and FIG. 5 is a graph diagram showing the relationship between bottom depth displacement and absorption capacity. DESCRIPTION OF SYMBOLS 1... Synthetic resin container, 2... Bottom, 3... Annular grounding part, 4... First inclined surface, 5... Annular bent part,
6...Second inclined surface, 7...Bottom plate.

Claims

[Scope of Claim for Utility Model Registration] (1) In the bottom structure of a synthetic resin container in which an annular bent part is formed on the bottom part 2 of the synthetic resin container 1, an annular grounding part 3 is protruded to the outside of the container around the bottom part 2. A first inclined surface 4 having an inclination that becomes convex toward the inside of the container as it reaches the inner circumference is formed on the inner peripheral edge of this annular grounding portion 3, and this first inclined surface 4
An annular bent part 5 having a semicircular cross section is formed inside the annular bent part 5, and a second inclined surface 6 having an inclination in a direction protruding from the container toward the inner periphery is formed inside the annular bent part 5.
A bottom structure of a synthetic resin container, characterized in that a bottom plate 7 is formed inside the second inclined surface 6. (2) In the bottom structure of a synthetic resin container in which an annular bent part is formed in the bottom part 2 of the synthetic resin container 1, an annular edge part 8 is formed around the bottom part 2, and the inner circumferential edge of this annular edge part 8, A first inclined surface 4 having an inclination that becomes convex toward the inside of the container as it reaches the inner periphery is formed, and an annular bent portion 5 having a trapezoidal cross section is formed inside this first inclined surface 4. Inside the bent part 5,
A bottom structure of a synthetic resin container, characterized in that a second inclined surface 6 is formed with an inclination in a direction protruding from the container as it reaches the inner periphery, and a bottom plate 7 is formed inside the second inclined surface 6. . (3) In the bottom structure of a synthetic resin container in which an annular bent portion is formed on the bottom 2 of the synthetic resin container 1, an annular edge 8 is formed around the bottom 2, and a cross section from the inner peripheral edge of the annular edge 8 is formed. A trapezoidal annular bent part 5 is extended, and a second inclined surface 6 having an inclination in a direction protruding from the container as it reaches the inner periphery is formed inside this annular bent part 5, and this second inclined surface 6. A bottom structure of a synthetic resin container, characterized in that a bottom plate 7 is formed inside the container.