JPS6281525U - - Google Patents
Info
- Publication number
- JPS6281525U JPS6281525U JP17457285U JP17457285U JPS6281525U JP S6281525 U JPS6281525 U JP S6281525U JP 17457285 U JP17457285 U JP 17457285U JP 17457285 U JP17457285 U JP 17457285U JP S6281525 U JPS6281525 U JP S6281525U
- Authority
- JP
- Japan
- Prior art keywords
- thread
- groove
- chamfered
- chamfered part
- screw tap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Forging (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
第１図は本考案の一実施例である複ねじタツプ
の概略を示す正面図である。第２図は第１図の複
ねじタツプにおいてねじ溝が設けられた部分を示
す詳細図である。第３図は第１図の複ねじタツプ
の切削機構を説明する図である。第４図は従来の
複ねじタツプの一例を示す図で、第２図に相当す
る図である。
１０：複ねじタツプ、１４：ねじ山、１８：完
全山部、２０：食付き部、２２：頂部、２４：ね
じ溝、２６：底部、２８：ストレート部。
FIG. 1 is a front view schematically showing a double screw tap which is an embodiment of the present invention. FIG. 2 is a detailed view showing a portion of the multi-screw tap shown in FIG. 1 in which a thread groove is provided. FIG. 3 is a diagram illustrating the cutting mechanism of the double screw tap shown in FIG. 1. FIG. 4 is a diagram showing an example of a conventional double screw tap, and corresponds to FIG. 2. 10: Double screw tap, 14: Thread, 18: Complete thread, 20: Chamfered part, 22: Top, 24: Thread groove, 26: Bottom, 28: Straight part.
Claims (1)
いてテーパ形状に形成された食付き部とから成る
ねじ山と、該ねじ山によつて削り出された切屑を
排出する溝部とを備え、且つ前記ねじ山の頂部に
該ねじ山と同じピツチでねじ溝が設けられている
複ねじタツプにおいて、 前記ねじ溝を少なくとも前記食付き部における
全てのねじ山に形成するとともに、該ねじ溝の底
部が軸心に平行となるストレート部を前記食付き
部の先端側部分に設けたことを特徴とする複ねじ
タツプ。[Claims for Utility Model Registration] A thread consisting of a cylindrical complete thread and a chamfered part formed in a tapered shape on the tip side of the full thread, and chips cut out by the thread. and a groove for discharging the thread, and a thread groove is provided at the top of the thread at the same pitch as the thread, wherein the thread groove is formed on at least all threads in the chamfered part. At the same time, a double screw tap characterized in that a straight portion in which the bottom of the thread groove is parallel to the axis is provided at the tip end portion of the chamfered portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457285U JPH0226572Y2 (en) | 1985-11-13 | 1985-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457285U JPH0226572Y2 (en) | 1985-11-13 | 1985-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6281525U true JPS6281525U (en) | 1987-05-25 |
| JPH0226572Y2 JPH0226572Y2 (en) | 1990-07-19 |
Family
ID=31113080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17457285U Expired JPH0226572Y2 (en) | 1985-11-13 | 1985-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226572Y2 (en) |
-
1985
- 1985-11-13 JP JP17457285U patent/JPH0226572Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0226572Y2 (en) | 1990-07-19 |