JPS5935714U

JPS5935714U - Screw mounting structure

Info

Publication number: JPS5935714U
Application number: JP13073782U
Authority: JP
Inventors: 秀夫小川
Original assignee: アルプス電気株式会社
Priority date: 1982-08-31
Filing date: 1982-08-31
Publication date: 1984-03-06

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図は従来のセキュリティスクリューを用いたねじの
取付構造を示す平面図、第２図は第１図の側断面図、第
３図はカップワッシャをやすり等で削ってペンチで回そ
うとする状態を示す斜視図、第４図はカップワッシャと
セキュリティスクリューをやすり等で削ってマイナスド
ライバーで回そうとする状態を示す斜視図、第５図は本
考案の一実施例を構成するカップワッシャの形状を示す
斜視図、第６図は本考案の一実施例に係るセキュリティ
スクリューを用いたねじの取付構造を示す平面図、第７
図は第６図の側断面図、第８図は本考案の他の実施例に
係る第７図に相当する側断面図である。１・・・セキュリティスクリュー、１．、・・・頭部、
１ｂ・・・螺子軸部、２・・・被取付体、２ａ・・・孔
、２５・・・孔部、３・・・取付母体、３ａ・・・螺子
孔、４・・・カップワッシャ、４８・・・筒状部、４ｂ
・・・底部、４ｏ・・・孔、４ｄ・・・凸部。Figure 1 is a plan view showing the screw mounting structure using a conventional security screw, Figure 2 is a side cross-sectional view of Figure 1, and Figure 3 is a cup washer that has been filed down with a file and is being turned with pliers. Fig. 4 is a perspective view showing the state in which the cup washer and security screw are being shaved with a file etc. and then turned with a flathead screwdriver; Fig. 5 is a perspective view showing the state in which the cup washer and the security screw are being turned with a flathead screwdriver; FIG. 6 is a perspective view showing the shape; FIG. 6 is a plan view showing a screw mounting structure using a security screw according to an embodiment of the present invention; FIG.
The figure is a side sectional view of FIG. 6, and FIG. 8 is a side sectional view corresponding to FIG. 7 according to another embodiment of the present invention. 1...Security screw, 1. ,···head,
1b... Screw shaft portion, 2... Mounted object, 2a... Hole, 25... Hole portion, 3... Mounting base, 3a... Screw hole, 4... Cup washer, 48...Cylindrical part, 4b
...bottom, 4o...hole, 4d...convex part.

Claims

[Scope of utility model registration request]

A screw body consisting of a head and a screw shaft extending integrally from the head, a cylindrical part into which the head of the screw body is inserted into the inner circumferential surface, and a cylindrical part through which the screw shaft of the screw body passes through the center. a bottomed cylindrical washer having a bottom portion with a hole bored therein; the screw body and the washer are attached to a mounting base body having a screw hole; In the mounting structure for a screw that is mounted through a screw, a convex portion projecting downward is provided at the bottom of the washer, and a fitting portion into which the convex portion of the washer can be inserted is provided in the object to be attached, and the bottom surface of the head of the screw body is in contact with the upper surface of the bottom of the washer, and the screw shaft of the screw body passes through the hole of the washer and the hole of the object to be attached, and is screwed into the screw hole of the mounting base, and the convex part of the washer is fitted into the object to be attached. A screw mounting structure characterized by being inserted into the part.