JPS6268778U

JPS6268778U -

Info

Publication number: JPS6268778U
Application number: JP16103485U
Authority: JP
Priority date: 1985-10-21
Filing date: 1985-10-21
Publication date: 1987-04-30

Description

[Brief explanation of the drawing]

第１図ないし第１３図は本考案の一実施例を示
すもので、第１図は締付工具の正面図、第２図は
締付工具の側面図、第３図はホルダーの左側面図
、第４図はホルダーの正面図、第５図はホルダー
の右側面図、第６図はダイ２１の正面図、第７図
はダイ２１の側面図、第８図はダイ２１の下面図
、第９図はダイ２２の正面図、第１０図はダイ２
２の側面図、第１１図はダイ２２の下面図、第１
２図はスクリユウの側面図、第１３図はスクリユ
ウの正面図、第１４図は燃料集合体を示す概略構
成図、第１５図は従来のスクリユウの側面図、第
１６図は従来のスクリユウの正面図、第１７図は
従来のホルダーの側面図、第１８図は従来のホル
ダーの正面図である。２０……ホルダー、２１，２２……ダイ、２３
……スクリユウ、２０ｃ……係止溝、２１ａ，２
２ａ……嵌合部、２３ａ……頭部。 Figures 1 to 13 show an embodiment of the present invention, with Figure 1 being a front view of the tightening tool, Figure 2 being a side view of the tightening tool, and Figure 3 being a left side view of the holder. , FIG. 4 is a front view of the holder, FIG. 5 is a right side view of the holder, FIG. 6 is a front view of the die 21, FIG. 7 is a side view of the die 21, and FIG. 8 is a bottom view of the die 21. FIG. 9 is a front view of the die 22, and FIG. 10 is a front view of the die 22.
2 is a side view of the die 22, and FIG. 11 is a bottom view of the die 22.
Figure 2 is a side view of the screw, Figure 13 is a front view of the screw, Figure 14 is a schematic configuration diagram showing a fuel assembly, Figure 15 is a side view of a conventional screw, and Figure 16 is a front view of a conventional screw. 17 is a side view of the conventional holder, and FIG. 18 is a front view of the conventional holder. 20... Holder, 21, 22... Die, 23
...screw, 20c...locking groove, 21a, 2
2a...fitting part, 23a...head.

Claims

[Scope of utility model registration request]

In a tightening tool for tightening a screw, a locking groove is formed at the tip of the holder from the outer periphery of the holder inward, and a die that engages with the head of the screw is detachably attached to the locking groove. A tightening tool characterized by being fitted and installed.