JPH02100713U

JPH02100713U -

Info

Publication number: JPH02100713U
Application number: JP919589U
Authority: JP
Priority date: 1989-01-27
Filing date: 1989-01-27
Publication date: 1990-08-10

Description

[Brief explanation of drawings]

図面はこの考案の実施例を示すもので、第１図
は使用状態を示す分解斜視図、第２図は、使用時
の状態を示す要部切欠断面図、第３図使用後の状
態を示す要部切欠断面図、第４図及び第５図は回
転シヤフトの長さ調整例を示す要部側面図であり
、第６図及び第７図は調整具の他の実施例を示す
側面図である。Ｐ…化粧ボード、Ｐ１…設置孔、Ｐ２…研削面
、Ｐ３…切込、Ｑ…石膏ボード、Ｒ…ホールソー
、Ｒ１…回転刃、Ｒ２…回転軸、Ｒ３…研削ヤス
リ、Ｒ４…センターピン、Ｓ…電動ドリル、Ｓ１
…チヤツク、１…カバー本体、１Ａ…圧接フラン
ジ、１Ｂ…取付孔、１Ｃ…弾性材、２…回転シヤ
フト、２Ａ…係止フランジ、２Ｂ…嵌入穴、２Ｃ
…止着ネジ、２Ｄ…ネジ山、３…支持リング、３
Ａ…ベアリング、４…スプリング、５…調整具、
５Ａ…固定ネジ。 The drawings show an embodiment of this invention; Fig. 1 is an exploded perspective view showing the state in use, Fig. 2 is a cutaway sectional view of the main part showing the state in use, and Fig. 3 shows the state after use. 4 and 5 are side views of the main parts showing an example of adjusting the length of the rotary shaft, and FIGS. 6 and 7 are side views showing other embodiments of the adjusting tool. be. P...Decorative board, P1...Installation hole, P2...Grinded surface, P3...Cut, Q...Gypsum board, R...Hole saw, R1...Rotary blade, R2...Rotary shaft, R3...Grinding file, R4...Center pin, S ...Electric drill, S1
...chuck, 1...cover body, 1A...pressure flange, 1B...mounting hole, 1C...elastic material, 2...rotating shaft, 2A...locking flange, 2B...fitting hole, 2C
...Fixing screw, 2D...Thread, 3...Support ring, 3
A...Bearing, 4...Spring, 5...Adjustment tool,
5A...Fixing screw.

Claims

[Scope of Claim for Utility Model Registration] 1. A dust-proof cover for a hole saw that covers from the bottom of a hole saw for drilling decorative ceiling boards to the surface of the decorative board, which houses the rotary blade of the hole saw and presses its opening against the ceiling surface. A dust-proof cover for a hole saw, characterized in that the cover body is provided with a rotary shaft that forms a main body, slides freely through the cover body from the bottom to the top, and connects the rotating shaft of the hole saw to an electric drill. . 2. The dustproof cover for a hole saw according to claim 1, wherein the cover main body has an elastic material surrounding the upper surface of the opening that is in pressure contact with the surface of the decorative board. 3. The rotary shaft is provided with an adjustment tool that can be freely adjusted to move along the axial direction on the side surface that projects downward of the cover body, and a spring that presses and biases the rotary shaft downward is connected to the adjustment tool and the cover body. A dustproof cover for a hole saw according to claims 1 and 2, which is interposed between the holesaw.