JPH0384105U

JPH0384105U -

Info

Publication number: JPH0384105U
Application number: JP14615189U
Authority: JP
Priority date: 1989-12-18
Filing date: 1989-12-18
Publication date: 1991-08-27

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の断面図、第２図は
本考案の他の実施例の断面図、第３図は排水路用
のＵ字形コンクリートブロツクの斜視図、第４図
は第２図に示す他の実施例の抜型を型枠へ取付け
た状態を示す断面図、第５図はコンクリート製桁
の斜視図、第６図は従来例の抜型をコンクリート
製桁を成形する型枠へ取付けた状態を示す断面図
である。１０，２０…抜型、１１，２１…心部材、１１
ｂ，２１ｂ…ネジ穴、１２，２２…被覆部材、１
２ｂ，２２ｂ…挿通孔、１４，２４…取付けボル
ト。 Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view of another embodiment of the invention, Fig. 3 is a perspective view of a U-shaped concrete block for a drainage channel, and Fig. 4 is a sectional view of a U-shaped concrete block for a drainage channel. Figure 2 is a sectional view showing a cutting die of another embodiment attached to a formwork, Figure 5 is a perspective view of a concrete girder, and Figure 6 is a conventional cutting die shown in a formwork for forming a concrete girder. It is a sectional view showing a state where it is attached to. 10, 20... Cutting die, 11, 21... Core member, 11
b, 21b...Screw hole, 12, 22...Coating member, 1
2b, 22b...Insertion hole, 14, 24...Mounting bolt.

Claims

[Scope of utility model registration request]

A cutting die for forming a hole in a concrete product for forming a hole penetrating from one side of the plate-shaped wall part of the concrete product having a smooth plate-shaped wall part to the other side, and having end faces at both ends in the axial direction. a hard, substantially cylindrical core member formed such that both end surfaces are substantially flush with one surface and the other surface of the plate-shaped wall portion of the concrete product; A screw hole is provided extending into the core member, and the bolt is fitted so as to cover the outer peripheral surface and one end surface of the core member, and a through hole is provided in the bottom portion that covers the one end surface of the core member, and a bolt is inserted into the through hole. A cutting die for forming a hole in a concrete product, comprising a cup-shaped urethane rubber covering member which is removably screwed into the screw hole with a bolt.