JPS5833124U

JPS5833124U - earring punch

Info

Publication number: JPS5833124U
Application number: JP12636181U
Authority: JP
Inventors: 加藤　正「あ」
Original assignee: 日産自動車株式会社
Priority date: 1981-08-26
Filing date: 1981-08-26
Publication date: 1983-03-04

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

[Brief explanation of the drawing]

第１図は従来のピアスポンチの取付状態を示す断面図（
第２図のＩ−Ｉ線断面に対応）、第２図は第１図の下面
図、第３図は同じ（従来のピアスポンチの他の取付状態
を示す断面図（第４図の■−■線断面に対応）、第４図
は第３図の下面図、第５図はこの考案におけるピアスポ
ンチの取付状態を示す断面図（第６図の■−■線断面に
対応）、第６図は第５図の下面図、第７図はこの考案に
おけ′るピアスポンチの他の実施例を示す断面図（第８
図の■−■線断面に対応）、第８図は第７図の下面図で
ある。２・・・・・・リテーナ、５・・・・・・バックプレー
ト、６・・・・・・ノックピン、７・・・・・・ボルト
、１０・・・・・・ピアスポンチ、１０ａ・・・・・・
小径部、１０ｂ・・・・・・段部。Figure 1 is a sectional view showing how a conventional piercing punch is installed (
2 corresponds to the I-I line cross section in Figure 2), Figure 2 is a bottom view of Figure 1, and Figure 3 is the same (cross-sectional view showing another installation state of the conventional piercing punch (■ - in Figure 4). Figure 4 is a bottom view of Figure 3, Figure 5 is a sectional view showing the mounting state of the piercing punch in this invention (corresponds to the cross section of Figure 6), Figure 6 is a bottom view of Figure 3. The figure is a bottom view of Fig. 5, and Fig. 7 is a sectional view (Fig. 8) showing another embodiment of the piercing punch in this invention.
8 is a bottom view of FIG. 7. 2...Retainer, 5...Back plate, 6...Dowel pin, 7...Bolt, 10...Earring punch, 10a...・・・・・・
Small diameter portion, 10b...Stepped portion.

Claims

[Scope of utility model registration request]

In a piercing punch that is held in a retainer and fixed to a press mold together with a back plate, a small diameter part is formed at one end of the piercing punch, and this small diameter part is inserted into a punch holding hole provided in the press mold for positioning. A piercing punch, characterized in that the stepped portion of the small diameter portion is engaged with a back plate, thereby giving the piercing punch itself a function as a knock pin.