JPS6148628U

JPS6148628U -

Info

Publication number: JPS6148628U
Application number: JP13409084U
Authority: JP
Priority date: 1984-09-03
Filing date: 1984-09-03
Publication date: 1986-04-01

Description

[Brief explanation of drawings]

第１図は本考案の操作ケースの防塵装置の一実
施例を示す平面図、第２図は第１図のＡ−Ａ線の
要部断面図、第３図は第１図のＢ−Ｂ線の要部断
面図、第４図は第１図の防塵マスクの要部斜視図
、第５図は従来の操作ケースの防塵装置の一実施
例を示す平面図、第６図は第５図のＣ−Ｃ線の要
部断面図、第７図は第５図のＤ−Ｄ線の要部断面
図、第８図は第５図の防塵マスクの要部斜視図、
第９図は第５図の防塵マスクの変形癖の説明図で
ある。図面中、２１は操作ケース、２２は操作摘子、
２４は移動孔、２６は変形部、２７は防塵マスク
を示す。 Fig. 1 is a plan view showing an embodiment of the dustproof device for the operation case of the present invention, Fig. 2 is a cross-sectional view of main parts taken along line A-A in Fig. 1, and Fig. 3 is B-B in Fig. 1. 4 is a perspective view of the main parts of the dust mask shown in FIG. 1, FIG. 5 is a plan view showing an example of a conventional dustproof device for an operation case, and FIG. FIG. 7 is a cross-sectional view of the main part taken along line C-C in FIG. 5, FIG. 8 is a perspective view of the main part of the dust mask shown in FIG. 5,
FIG. 9 is an explanatory diagram of the deformation tendency of the dust mask shown in FIG. 5. In the drawing, 21 is an operation case, 22 is an operation knob,
24 is a moving hole, 26 is a deformation portion, and 27 is a dust mask.

Claims

[Scope of utility model registration request]

An operating knob for operating an operating part in the operating case by moving a moving hole in the operating case is provided outside the operating case to prevent dust from entering the operating case through the moving hole in the operating case. In a dustproof device of an operation case, in which a dustproof mask is provided in such a manner that the operation knob is movable and closes a movement hole of the operation case, the dustproof mask is deformed so as to be restorable when it comes into contact with the operation knob. A dustproof device for an operation case, characterized in that a large restoring force is formed to prevent the part from deforming.