JPS59172813U

JPS59172813U - screw tool

Info

Publication number: JPS59172813U
Application number: JP6802583U
Authority: JP
Inventors: 宮川　道之助
Original assignee: 宮川金属工業株式会社
Priority date: 1983-05-07
Filing date: 1983-05-07
Publication date: 1984-11-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は一つの従来例の斜視図、第２図は他の従来例の
斜視図、第３図は第１図の従来例の欠点を示す平面図、
第４図は第２図の従来例の欠点を示す平面図、第５図は
本考案のねじ具の一実施例の一部省略した斜視図、第６
図ａ、　　ｂ、　　ｃは同上の正面図、平面図及び一部
破断した断面図、第７図ａ、　　ｂは同上の他の実施例
の正面図、平面図、第８図ａ、　　ｂ、　　ｃは同上の
更に他の実施例の正面図、平面図及び一部破断した断面
図、第９図ａ。ｂ１第１０図ａ、　ｂ、第１１図ａ、　ｂ、第１２図ａ
、　ｂ、第１３図ａ、　ｂ、第１４図ａ、　ｂ、第１５
図ａ、　ｂ及び第１６図ａ、　ｂは夫々更に他の実施例
の正面図、平面図、第１７図ａ、　　ｂ、　　ｃは同上
のパンチの正面図、平面図、断面図、第１８図ａ、　　
ｂ、　　ｃは同上の他のパンチの正面図、平面図及び断
面図であり、１は頭部、２は頂部、３は正方形穴、４は
十字穴、５は溝部である。FIG. 1 is a perspective view of one conventional example, FIG. 2 is a perspective view of another conventional example, and FIG. 3 is a plan view showing the drawbacks of the conventional example shown in FIG.
FIG. 4 is a plan view showing the drawbacks of the conventional example shown in FIG. 2, FIG. 5 is a partially omitted perspective view of an embodiment of the screw tool of the present invention, and FIG.
Figures a, b, and c are a front view, plan view, and partially broken sectional view of the same as above, Figures 7 a, b are front views, plan views, and Figure 8 a, b, and c of other embodiments of the same. FIG. 9a is a front view, a plan view, and a partially broken sectional view of still another embodiment of the same as above. b1 Figure 10 a, b, Figure 11 a, b, Figure 12 a
, b, Figure 13 a, b, Figure 14 a, b, Figure 15
Figures a and b and Figures 16a and b are respectively a front view and a plan view of another embodiment, Figures 17a, b and c are a front view, a top view and a sectional view of the same punch, and Figure 18 a,
b and c are a front view, a plan view, and a cross-sectional view of other punches as described above, in which 1 is a head, 2 is a top, 3 is a square hole, 4 is a cross hole, and 5 is a groove.

Claims

[Scope of utility model registration request]

A screw tool consisting of a square hole and a cross recess concentrically recessed on the top surface of the screw head so that each groove of the cross recess is located in the square of the square hole.