JPH03100106U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第６図は本考案の実施例を示し、
第１図は第１実施例の容器の断面図、第２図はそ
の要部の断面図、第３図は第２実施例の容器の断
面図、第４図はその要部の断面図、第５図は負圧
吸収能力の実験方法を示す略図、第６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環状屈曲部、５……第２環状
屈曲部、６……底部、７……平面部、８……テー
パー面。 1 to 6 show embodiments of the present invention,
FIG. 1 is a sectional view of the container of the first embodiment, FIG. 2 is a sectional view of the main parts thereof, FIG. 3 is a sectional view of the container of the second embodiment, and FIG. 4 is a sectional view of the main parts thereof. FIG. 5 is a schematic diagram showing an experimental method for negative pressure absorption capacity, and FIG. 6 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 annular bent part, 5... Second annular bent part, 6... Bottom, 7... Flat part, 8... ...Tapered surface.

Claims (1)

【実用新案登録請求の範囲】 合成樹脂容器１の底部２に、環状の屈曲部を形
成した合成樹脂容器の底部構造において、 底部２の周辺に環状接地部３を容器外側に突出
させて形成し、この環状接地部３の内周縁から、
容器の内部側に凸な断面山形状の第１環状屈曲部
４を形成し、この第１環状屈曲部４の内側に、容
器の内部側に凸な断面山形状の第２環状屈曲部５
を形成し、この第２環状屈曲部５の内側に底板６
を形成し、前記第２環状屈曲部５の角度が６０度
よりも小さく、かつ、前記底板６が、中央部分の
平面部７と、この平面部７の周縁に連設され外周
に至るにしたがつて容器内部に突出するテーパー
面８とからなつていることを特徴とする合成樹脂
容器の底部構造。[Claim for Utility Model Registration] 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 formed around the bottom part 2 to protrude to the outside of the container. , from the inner peripheral edge of this annular grounding part 3,
A first annular bent portion 4 having a convex cross-sectional shape of a mountain is formed inside the container, and a second annular bent portion 5 having a convex cross-section convex toward the inside of the container is formed inside the first annular bent portion 4.
A bottom plate 6 is formed inside this second annular bent part 5.
, the angle of the second annular bent part 5 is smaller than 60 degrees, and the bottom plate 6 is connected to a flat part 7 in the center part and a periphery of this flat part 7 and extends to the outer periphery. A bottom structure of a synthetic resin container, characterized in that it consists of a tapered surface 8 that curves and projects into the inside of the container.