JPH0176204U

JPH0176204U -

Info

Publication number: JPH0176204U
Application number: JP1987171721U
Authority: JP
Priority date: 1987-11-10
Filing date: 1987-11-10
Publication date: 1989-05-23

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の一実施例を示す
もので、第１図はコンクリートセグメント用型枠
内に抜型をセツトした状態を示す斜視図、第２図
は一実施例にかかる抜型を側板を貫通するボルト
により固定した状態を示す断面図、第３図および
第４図は作用を説明するために示したもので、そ
れぞれ断面図、第５図および第６図は本考案の他
の実施例を示すもので、第５図はこの抜型を側板
を貫通するボルトにより固定した状態を示す断面
図、第６図はその作用を説明するために示した断
面図、第７図は一般的な中子型コンクリートセグ
メントの継手部構造を示す断面図、第８図はその
継手部の改良例を示す断面図、第９図は曲りボル
トによつてコンクリートセグメントどうしを連結
する構造の継手部を示す断面図である。１０……コンクリートセグメント成形用型枠、
１１……型枠本体、１２……側板、１３……端板
、１４……底板、１５……貫通孔、１６……ボル
ト、１７……シース管、２０……コンクリートセ
グメント用抜型、２１……抜型本体、２２……中
子体、２３……側壁、２４……頂壁、２５……前
壁、２６……後壁、２７……側壁、２８……ねじ
部、２８ａ……筒状部、２９……ガイド孔、３０
……貫通孔、Ｔ……合わせ面、Ｓ……ボルト連結
操作用の空所。 Figures 1 to 4 show one embodiment of the present invention. Figure 1 is a perspective view showing a cutting die set in a concrete segment formwork, and Figure 2 is a cutting die according to an embodiment. 3 and 4 are shown in order to explain the operation, and the sectional view and FIGS. Fig. 5 is a sectional view showing the state in which this cutting die is fixed with bolts passing through the side plate, Fig. 6 is a sectional view shown to explain its function, and Fig. 7 is a general sectional view. Figure 8 is a cross-sectional view showing an improved example of the joint, and Figure 9 is a joint with a structure in which concrete segments are connected using bent bolts. FIG. 10... Formwork for forming concrete segments,
11... Form body, 12... Side plate, 13... End plate, 14... Bottom plate, 15... Through hole, 16... Bolt, 17... Sheath pipe, 20... Cutting die for concrete segment, 21... ... Cutting die body, 22 ... Core body, 23 ... Side wall, 24 ... Top wall, 25 ... Front wall, 26 ... Rear wall, 27 ... Side wall, 28 ... Threaded part, 28a ... Cylindrical Part, 29...Guide hole, 30
...through hole, T...mating surface, S...open space for bolt connection operation.

Claims

[Scope of utility model registration request]

In the concrete segment cutting die which is disposed inside the concrete segment formwork 10 and is held by bolts 16 that protrude through the side plate 12 of the formwork 10, the cutting die 20 is connected to the concrete segment 1 for connection operation. The cutting die main body 21 forms a cavity S, and the core body 22 is set in surface contact with the cutting die body 21 and expands the internal space of the cavity S for connection operation, In addition, a through hole 30 passing through the bolt 16 is formed in one of the cutting die main body 21 and the core body 22, and a threaded portion 28 into which the bolt 16 is screwed is provided in the other. The core body 22 is formed in such a shape that its outer shape expands toward the mating surface with the cutting die main body 21, and
1 and the core body 22 are inclined outwardly toward the opening of the space S for connection operation.