JPS6014315U

JPS6014315U - screw

Info

Publication number: JPS6014315U
Application number: JP10550083U
Authority: JP
Inventors: 鈴木　博正
Original assignee: ソニー株式会社
Priority date: 1983-07-08
Filing date: 1983-07-08
Publication date: 1985-01-31

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 drawings]

第１図ａ、　　ｂは従来のねじの一例を示す平面図と断
面図、第２図は第１図のねじを回すねじ回し具の斜視図
、第３図、第４図はねじを取り付ける説明図、第５図ａ
、　　ｂはこの考案の一実施例を示す平面図と断面図、
第６図は第５図のねじを回すねじ回し具の斜視図、第７
図、第８図ａ、　　ｂはねじを取り付ける説明図である
。図中、２１はねじ、２２は頭部、２３は第１の凹部、２
４は中心、２５は第２の凹部、２６は軸、心である。Figures 1 a and b are a plan view and a sectional view showing an example of a conventional screw, Figure 2 is a perspective view of a screwdriver for turning the screw in Figure 1, and Figures 3 and 4 are explanations of how to install the screw. Figure, Figure 5a
, b is a plan view and a sectional view showing an embodiment of this invention,
Figure 6 is a perspective view of the screwdriver for turning the screw in Figure 5;
Figures 8a and 8b are explanatory diagrams for attaching screws. In the figure, 21 is a screw, 22 is a head, 23 is a first recess, 2
4 is the center, 25 is the second recess, and 26 is the axis.

Claims

[Scope of utility model registration request]

A screw characterized in that a first recess is provided in the head, and a second recess is provided in the bottom of the first recess at a position offset from the center of the first recess.