JPS644966U

JPS644966U -

Info

Publication number: JPS644966U
Application number: JP9931887U
Authority: JP
Priority date: 1987-06-30
Filing date: 1987-06-30
Publication date: 1989-01-12

Description

[Brief explanation of the drawing]

第１図は本考案反転型破裂板破断用ナイフの要
部の底面図、第２図はその側面図、第３図は本考
案の他の実施例の要部の底面図、第４図は従来の
反転型破裂板破断用ナイフの縦断正面図、第５図
、第６図は夫々従来の反転型破裂板破断用ナイフ
の説明用底面図である。１……破裂板、２ａ〜２ｄ……ナイフ素子、３
，５……ナイフエツジ、４……集合部、６……ナ
イフエツジ端。 Figure 1 is a bottom view of the main parts of the reversible rupture disc breaking knife of the present invention, Figure 2 is a side view thereof, Figure 3 is a bottom view of the main parts of another embodiment of the invention, and Figure 4 is A longitudinal sectional front view of a conventional reversible rupture disc rupturing knife, and FIGS. 5 and 6 are respectively explanatory bottom views of the conventional reversible rupture disc rupturing knife. 1... Rupture disc, 2a to 2d... Knife element, 3
, 5... Knife edge, 4... Gathering part, 6... Knife edge end.

Claims

[Scope of utility model registration request]

It consists of a plurality of knife elements arranged to extend radially from the central part, and the tips of the knife elements are spaced apart from each other in the horizontal direction in the central part,
Each knife element is of an inverted type, characterized in that the central portion of its tip protrudes in a substantially triangular shape toward the rupture disc side to form a knife edge, and further, other knife edges are formed by cutting on both sides of the tip. Knife for breaking rupture discs.