JPS6178526U

JPS6178526U -

Info

Publication number: JPS6178526U
Application number: JP16365284U
Authority: JP
Priority date: 1984-10-29
Filing date: 1984-10-29
Publication date: 1986-05-26

Description

[Brief explanation of drawings]

第１図は本考案に係る内径ねじ加工用タツプの
正面図、第２図は第１図のタツプの−線断面
図、第３図は本考案に係る内径ねじ加工用タツプ
の変形例を示す断面図、第４図Ａ乃至第４図Ｄは
本考案に係る内径ねじ加工用タツプの作用状態を
示す夫々の説明図である。１０，１０Ａ……内径ねじ加工用タツプ、１２
……タツプ軸杆、１４ａ〜１４ｃ……タツプ部、
１６ａ〜１６ｃ……連結部位、１８……溝、２０
ａ〜２０ｃ……切刃部、２２ａ，２２ｂ……タツ
プ部、２４ａ〜２４ｃ……ねじ穴、２６……加工
物、２８ａ〜２８ｃ……ねじ用下穴。 Fig. 1 is a front view of the tap for machining internal threads according to the present invention, Fig. 2 is a sectional view taken along the - line of the tap in Fig. 1, and Fig. 3 is a modification of the tap for machining internal threads according to the present invention. The cross-sectional views, FIGS. 4A to 4D, are explanatory diagrams showing the operating state of the tap for machining internal threads according to the present invention. 10, 10A...Tap for processing internal threads, 12
...Tap shaft rod, 14a to 14c...Tap part,
16a to 16c... Connection site, 18... Groove, 20
a to 20c... Cutting blade portion, 22a, 22b... Tap portion, 24a to 24c... Screw hole, 26... Workpiece, 28a to 28c... Pilot hole for screw.

補正昭６０．１１．２２図面の簡単な説明を次のように補正する。明細書第９頁第１０行の「…の変形例を示す断
面図、…」とあるを「…の変形例を示す正面図、
…」と補正します。Amendment November 22, 1980 The brief description of the drawing is amended as follows. On page 9, line 10 of the specification, the phrase “a sectional view showing a modification of…” has been replaced with “a front view showing a modification of…”
...” and correct it.

Claims

[Scope of utility model registration request]

An inner diameter characterized in that a plurality of tap portions having different thread diameters and thread pitches are formed on the tap shaft rod in multiple stages such that the tap portion with the smaller thread diameter and thread pitch is located close to the tip of the tap shaft rod. Tap for thread processing.