JPH0166979U

JPH0166979U -

Info

Publication number: JPH0166979U
Application number: JP1987162809U
Authority: JP
Priority date: 1987-10-23
Filing date: 1987-10-23
Publication date: 1989-04-28

Description

[Brief explanation of the drawing]

第１図は本考案による締結工具の一実施例を示
す要部断面図、第２図は従来の締結工具の要部断
面図である。１はギヤカバ、１ａは円環状突出部、１ｂは内
径部端面、３は先端工具、４はスピンドル、４ａ
は溝部、５はストツパ、５ａは粉塵排出口、６は
防塵リング、６ａは傾斜面、６ｂは外縁部、６ｃ
は防塵シール部。 FIG. 1 is a sectional view of a main part showing an embodiment of a fastening tool according to the present invention, and FIG. 2 is a sectional view of a main part of a conventional fastening tool. 1 is a gear cover, 1a is an annular protrusion, 1b is an inner diameter end face, 3 is a tip tool, 4 is a spindle, 4a
is a groove, 5 is a stopper, 5a is a dust outlet, 6 is a dustproof ring, 6a is an inclined surface, 6b is an outer edge, 6c
is the dust-proof seal part.

Claims

[Scope of utility model registration request]

A tip tool, a spindle that grips the tip tool and transmits the rotation of the motor, a gear cover having an annular protrusion at the tip and housing a power transmission section, and a dust outlet, which is screwed to the gear cover. a stopper movable in the axial direction of the tip tool; fitted on the outer periphery of the tip of the spindle and having a cylindrical outer edge, the outer edge contacting the outer periphery of the annular protrusion of the gear cover; In a fastening tool having a slidable dustproof ring, an outer edge of the dustproof ring is disposed close to an inner wall of the stopper,
A dust-proof seal portion is provided on the outer edge and inner diameter portion of the dust-proof ring, and is expandable and retractable with respect to the axial movement of the spindle, and whose tip portion is in contact with the end surface of the inner diameter portion of the annular projection of the gear cover. A fastening tool characterized in that a fastening tool is formed.