JPS60178526U - 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側面図、第２図は第゛　　１
図Ａ−Ａ線断面図、第３図はスプライン溝の加工状態を
示す図、第４図は工作物の破断側面図、第５図は第４図
Ｂ−Ｂ線断面図、第６図は本考案に係るブローチの側面
図、第７図は第６図Ｃ−ｃ線断面図である。 図面中、１はブローチ、２は前部切刃、３，１．３は荒
刃、４，１４は中仕上刃、５，１５は仕上刃、１２は後
部切刃である。Figure 1 is a side view of a conventional brooch, and Figure 2 is a side view of a conventional brooch.
Figure 3 is a cross-sectional view taken along the line A-A, Figure 3 is a diagram showing the machining state of the spline groove, Figure 4 is a broken side view of the workpiece, Figure 5 is a cross-sectional view taken along the line B-B of Figure 4, and Figure 6 is a cross-sectional view taken along the line B-B of Figure 4. A side view of the broach according to the present invention, FIG. 7 is a cross-sectional view taken along line C-c in FIG. 6. In the drawings, 1 is a broach, 2 is a front cutting edge, 3, 1.3 is a rough cutting edge, 4, 14 is a semi-finishing blade, 5, 15 is a finishing blade, and 12 is a rear cutting blade.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ブローチ前半部に荒刃、中仕上刃および仕上刃を設ける
一方、ブローチ後半部にも被削物の収縮歪を切削除去す
るための荒刃、中仕上刃および仕上刃を設けたことを特
徴とするブローチ。The first half of the broach is provided with a roughing blade, a semi-finishing cutter and a finishing cutter, while the second half of the broach is also provided with a roughing cutter, a semi-finishing cutter and a finishing cutter for cutting and removing shrinkage distortion of the work piece. A brooch.