JPS6074909U - brooch - 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) [Summary] 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図は従来のブローチの斜視図、第２図は被削物エツ
ジ欠は発生の模式図、第３図、第４図は傾斜ブローチの
斜視図、第５図は傾斜ブローチの平面図、第６図は切刃
成形状態の正面図と平面図、第７図、第１０図は本考案
の実施例の斜視図、第８図、第１１図は同じく平面図、
第９図、第１２図は切刃成形時のブローチ中心断面図で
ある。 １・・・・・・ブローチ、２・・・・・・切刃、３・・
・・・・チップポケット、４・・・・・・被削物、５・
・・・・・切屑、６・・・・・・被削物エツジ部、１１
・・・・・・砥石、１２，１３・・・・・・カップ砥石
。 第４−閉 第Ｓ図Fig. 1 is a perspective view of a conventional broach, Fig. 2 is a schematic diagram of how edge defects occur in a workpiece, Figs. 3 and 4 are perspective views of an inclined broach, and Fig. 5 is a plan view of an inclined broach. Fig. 6 is a front view and a plan view of the cutting blade forming state, Figs. 7 and 10 are perspective views of the embodiment of the present invention, Figs. 8 and 11 are also plan views,
FIGS. 9 and 12 are center sectional views of the broach during cutting edge forming. 1... Broach, 2... Cutting blade, 3...
...Chip pocket, 4...Workpiece, 5.
...Chip, 6...Workpiece edge, 11
...Whetstone, 12,13...Cup whetstone. 4th - Closed S figure

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直進運動して切削するブローチの切刃において、該ブロ
ーチの進行方向に直角な方向に円弧状の切刃およびチッ
プポケットを成形したことを特徴とするブローチ。1. A broach, characterized in that the cutting edge of the broach that moves in a straight line for cutting is formed with an arcuate cutting edge and a chip pocket in a direction perpendicular to the direction of movement of the broach.