JPS634214U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を具体化した実施例の断面図、
第２図は同じく分解斜視図である。 １……外側有蓋筒体、２……蓋部、４……切削
刃、５……センタードリル、６……係合孔、１１
……内側有蓋筒体、１２……蓋部、Ｈ……ホール
カツター、Ｄ……硬質用座ぐりカツター。 FIG. 1 is a sectional view of an embodiment embodying the present invention.
FIG. 2 is also an exploded perspective view. DESCRIPTION OF SYMBOLS 1... Outer covered cylinder, 2... Lid, 4... Cutting blade, 5... Center drill, 6... Engaging hole, 11
...Inner covered cylinder, 12...Lid, H...Hole cutter, D...Spot face cutter for hard materials.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外側有蓋筒体１の蓋部２中心には回転支持軸３
を突設し、前記外側有蓋筒体１の端縁部１ａには
鉄板などを穿孔しうる切削刃４を複数個配設して
なるホールカツターＨと、前記外側有蓋筒体１内
に内装可能な内側有蓋筒体１１の端縁部には砥粒
層１４を施した硬質用座ぐりカツターＤとよりな
り、内側有蓋筒体１１を外側有蓋筒体１内に挿入
して砥粒層１４が切削刃４より突出するようにし
、両筒体１，１１間にはその両筒体１，１１を着
脱可能に連結する連結部材６，１５を設けたこと
を特徴とするホーローびき鉄板などの穿孔用複合
カツター。 A rotary support shaft 3 is located at the center of the lid portion 2 of the outer covered cylinder 1.
A hole cutter H is provided in which a plurality of cutting blades 4 capable of piercing an iron plate or the like are disposed on the end edge 1a of the outer covered cylinder 1, and an inner hole cutter H is provided inside the outer covered cylinder 1. The end edge of the inner covered cylinder 11 is provided with a hard counterbore cutter D provided with an abrasive layer 14, and the inner covered cylinder 11 is inserted into the outer covered cylinder 1 to cut the abrasive layer 14. protrudes from the cutting blade 4, and connecting members 6, 15 are provided between the cylindrical bodies 1, 11 to removably connect the cylindrical bodies 1, 11. Composite cutter for perforation.