JPS60146603U - Diameter expansion hole cutting device - Google Patents

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図はこの考案の実施例を示す一部を欠除した正面図
、第２図は第１図Ａ−Ａ線に於ける断面図、第３図ａ、
　ｂ、　Ｃ，ａｔ　ｅは動作説明図である。 １・・・本体、２・・・シャンク、３・・・ウェッジセ
ンタ、４・・・張出顎、５・・・中空部、６・・・圧縮
ばね、７・・・弾性刃板、８・・・切刃、９・・・ガイ
ド溝、１ｏ・・・切欠部、１１・・・規制手段、１２・
・・キー溝、１３・・・キＯ 」 Ａ 」 、　　１ −ＩＸ″４Fig. 1 is a partially cutaway front view showing an embodiment of this invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 a,
b, c, ate are operation explanatory diagrams. DESCRIPTION OF SYMBOLS 1...Main body, 2...Shank, 3...Wedge center, 4...Protruding jaw, 5...Hollow part, 6...Compression spring, 7...Elastic blade plate, 8 ...Cutting blade, 9...Guide groove, 1o...Notch, 11...Regulation means, 12.
...Keyway, 13...Ki O"A", 1-IX"4

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）本体に、本体と軸芯共通に同体回転し、且つ軸芯
方向にばね付勢下に相対移動可能にウェッジセンタを挿
着し、本体に取付けた切刃をウェッジセンタ先端部に設
けた張出鍔に沿って移動させて張出鍔より外方に突出さ
せ、予め穿孔した孔に挿入して孔壁を切削する拡径孔部
削成装置に於いて、前記ウェッジセンタの張出鍔部を偏
平状に形成すると共に、張出鍔に切刃のガイド溝を設け
、該ガイド溝の基部、並びに先端部に回転方向に向けて
切刃を開放可能に切欠部を形成し、本体とウェッジセン
タの摺動周面に、切刃をガイド溝に沿わせて移動させる
軸芯方向への動き、ガイド溝の切欠部を介してガイド溝
に切刃を出入させる回転方向への動き、並びに切刃の復
帰で軸芯方向への動きを規制する規制手段を設けたこと
を特徴とする拡径孔部削成装置。(1) A wedge center is inserted into the main body so that it rotates co-axially with the main body and is movable relative to the main body under spring bias in the axial direction, and a cutting blade attached to the main body is provided at the tip of the wedge center. In a diameter expanding hole cutting device that moves along an overhanging flange to protrude outward from the overhang flange and inserts it into a pre-drilled hole to cut the hole wall, the wedge center overhang The flange is formed into a flat shape, and a guide groove for the cutting blade is provided in the overhanging flange, and a notch is formed at the base and tip of the guide groove so that the cutting blade can be opened in the rotational direction. and the sliding peripheral surface of the wedge center, movement in the axial direction to move the cutting blade along the guide groove, movement in the rotational direction to move the cutting blade in and out of the guide groove through the notch of the guide groove, Furthermore, a diameter expansion hole cutting device is provided, which is provided with a regulating means for regulating the movement in the axial direction when the cutting blade returns. （２）前記規制手段は、本体とウェッジセンタの摺動周
面にキーと、キー溝とで構成したことを特徴とする実用
新案登録請求の範囲第１項記載の拡径孔部削成装置。(2) The diameter expanding hole cutting device according to claim 1, wherein the regulating means is constituted by a key and a key groove on the sliding peripheral surfaces of the main body and the wedge center. .