JPH03281178A - Knock pin pulling-off jig and using method thereof - Google Patents
Knock pin pulling-off jig and using method thereofInfo
- Publication number
- JPH03281178A JPH03281178A JP7690490A JP7690490A JPH03281178A JP H03281178 A JPH03281178 A JP H03281178A JP 7690490 A JP7690490 A JP 7690490A JP 7690490 A JP7690490 A JP 7690490A JP H03281178 A JPH03281178 A JP H03281178A
- Authority
- JP
- Japan
- Prior art keywords
- pull
- jig
- knock pin
- bolt
- extraction
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000000605 extraction Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ノックピンが打ち込まれた製品、及び、部品
で、将来ノックピンを抜き出す必要があるもの、又、将
来ノックピンを抜き出すおそれがあるもので、それらの
ノックピン抜き出し方法、並びに、ノックピン抜き用治
具に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to products and parts into which a dowel pin has been driven, which will require the dowel pin to be removed in the future, or which may have the knock pin removed in the future. , a knock pin extraction method, and a knock pin extraction jig.
通常、建設機械や、機械構造物に使用されるノックピン
等の抜き出しは、ノックピンに差し込んだシャフトの頭
部におもりをぶつけて、その反動で抜き出す方法がどれ
らる。この治具は構造が簡単ではあるが、抜き出そうと
するピンが大きな場合その分おもりを大きくせねばなら
ず、抜き出しに多くの労力を必要とする。Normally, the method of extracting knock pins used in construction machinery and mechanical structures is to strike a weight against the head of the shaft inserted into the knock pin and use the reaction force to pull it out. Although this jig has a simple structure, if the pin to be extracted is large, the weight must be increased accordingly, and it requires a lot of effort to extract it.
比較的強い引張力をもつピン等は、ねじを一部に使用し
た構造の抜き出し治具が使用される。For pins and the like that have a relatively strong tensile force, an extraction jig that partially uses a screw is used.
一般に、打ち込まれたピン類は母材との締め付は力が大
きいため、抜き出すのに多大な労力を必要とするものが
多い。又、抜き出しに使用するおもりの重量が重いため
、持ち運びや、万一の事故への考慮がかけていた。In general, driven pins are tightened with a base metal with a large force, so it often requires a great deal of effort to pull them out. In addition, the weight used for extraction is heavy, making it difficult to carry and to prevent accidents.
本発明者は、このような作業性や安全性を改善すべく、
作業を楽に、持ち運びを便利に、安全性の高いノックピ
ン抜き用治具を考えた。In order to improve such workability and safety, the present inventor has
We devised a dowel pin removal jig that is easy to work with, convenient to carry, and highly safe.
本発明の主な目的は、楽な作業でノックピン抜き用治具
を提供することにある。The main object of the present invention is to provide a jig for removing knock pins with easy operation.
本発明の第二の目的は、大きなおもりを使用しない軽い
構造のノックピン抜き用治具を提供することにある。A second object of the present invention is to provide a jig for removing knock pins that does not use a large weight and has a light structure.
本発明の第三の目的は、持ち運びに便利なコンパクトな
形状のノックピン抜き用治具を提供することにある。A third object of the present invention is to provide a jig for removing knock pins that is compact and convenient to carry.
本発明の第四の目的は、作業者への安全性の高いノック
ピン抜き用治具を提供することにある。A fourth object of the present invention is to provide a dowel pin removal jig that is highly safe for workers.
本発明は、硬く締め付けられたノックピンをてこの原理
を使って引き抜く方法の治具のため非常にコンパクトな
ノックピン抜き用治具を提供する。The present invention provides a very compact knock pin removal jig for use in a method of pulling out a tightly tightened knock pin using the principle of leverage.
また、本発明はねじ部を１部に採用し、てこの原理でノ
ックピンを引き抜く構造のため抜き出し時にあまり力の
いらないノックピン抜き用治具が提供される。Further, the present invention provides a jig for removing knock pins that does not require much force when pulling out the knock pins because the screw portion is used as one part and the knock pins are pulled out using the lever principle.
更に、本発明は反動用の大きなおもりを使用しないため
、軽くて持ち運びやすく、又、作業時の安全性の高いノ
ックピン抜き用治具が提供される。Furthermore, since the present invention does not use a large recoil weight, it is possible to provide a jig for removing knock pins that is light and easy to carry, and is highly safe during operation.
本発明では、ノックピンに装着した抜き用ボルトに取付
けたナツトと抜き用ボルトを囲んだパイプとの反力によ
る抜き出し動作が行なわれ、てこの原理により抜き出し
時の力が小さくてもよくすることが出来る。In the present invention, the extraction operation is performed by the reaction force between the nut attached to the extraction bolt attached to the dowel pin and the pipe surrounding the extraction bolt, and due to the lever principle, the extraction force can be small. I can do it.
さらに、本発明によれば、反動用の大きなおもりを使用
しないため作業時の安全性が高くなる。Furthermore, according to the present invention, safety during work is increased because a large weight for recoil is not used.
第３図は、本発明の一実施例に基づくノックピン抜き用
治具を示す図である。FIG. 3 is a diagram showing a dowel pin removal jig based on an embodiment of the present invention.
構造物１はノックピン２、及び、母材３からなる。The structure 1 consists of a dowel pin 2 and a base material 3.
本発明によるノックピン抜き用治具１０は、ノックピン
２及び母材３に第３図のように装着される。The dowel pin removal jig 10 according to the present invention is attached to the dowel pin 2 and the base material 3 as shown in FIG.
第１図にノックピン抜き用治具１０の構成を示す。構成
は、抜き用ボルト２０．抜き用ナツト３０、抜き用パイ
プ４０からなる。FIG. 1 shows the structure of a dowel pin removal jig 10. The configuration is 20 bolts for extraction. It consists of a extraction nut 30 and a extraction pipe 40.
このような構成によれば、第１図に示すように、ノック
ピン２に装着されたノックピン抜き用治具−
１０は、抜き用ボルト２ｏと抜き用ナツト３ｏを工具９
０でおさえ、両者の回転方向を逆にすることによって、
ノックピン２の抜き出し力が得られ、更に、工具９ｏの
長さを変えることによって、てこの原理でノックピン２
の抜き出し力を小さくすることが出来る。According to such a structure, as shown in FIG.
By holding it at 0 and reversing the rotation direction of both,
The force for pulling out the knock pin 2 can be obtained, and by changing the length of the tool 9o, the knock pin 2 can be pulled out using the lever principle.
The extraction force can be reduced.
第２図は、本発明のノックピン抜き用工具１０の使用方
法のフローチャートである。これによれば、１００でノ
ックピン抜き用治具１０の抜き用ナツト３０を抜き用ボ
ルト２０に取り付ける。FIG. 2 is a flowchart of a method of using the dowel pin removal tool 10 of the present invention. According to this, the extracting nut 30 of the dowel pin extracting jig 10 is attached to the extracting bolt 20 at step 100.
２００で抜き用ボルト２０に抜き用パイプ４０を通す。At step 200, the extraction pipe 40 is passed through the extraction bolt 20.
３００で抜き用ナツト３０と抜き用パイプ４０を取り付
けた抜き用ボルト２０をノックピン２に装着する。４０
０で抜き用ボルト２０と抜き用ナツト３ｏを工具９０で
おさえる。さらに、５００で工具９０でおさえた抜き用
ボルト２０と抜き用ナツト３０を逆方向に回転させて、
６００でノックピンを抜き出す。At step 300, the extraction bolt 20 with the extraction nut 30 and extraction pipe 40 attached is attached to the knock pin 2. 40
At 0, hold down the extraction bolt 20 and extraction nut 3o with the tool 90. Furthermore, at 500, rotate the extraction bolt 20 and the extraction nut 30 held by the tool 90 in the opposite direction,
Pull out the dowel pin at 600.
本発明によれば、抜き出し力にねじの回転力を−
使用し、更に、てこの原理を用いることにより作業時の
労力を大幅に削減することが出来る。According to the present invention, the rotational force of the screw is used as the extraction force, and furthermore, by using the lever principle, it is possible to significantly reduce the labor during the work.
又、本発明では重量物を使用しないため、作業時に高い
安全性が得られる。Furthermore, since the present invention does not use heavy objects, high safety can be achieved during work.
第１図は、本発明によるノツクピン抜き用治具の断面図
、第２図は第１図に示したノックピン抜き用治具使用方
法のフローチャート、第３図は、構造物にノックピン抜
き用治具を装置した状態を示す断面図である。
第
２Fig. 1 is a sectional view of the dowel pin removal jig according to the present invention, Fig. 2 is a flowchart of a method of using the dowel pin removal jig shown in Fig. 1, and Fig. 3 is a dowel pin removal jig attached to a structure. FIG. Second
Claims (1)
イプ及びナットによつて組み立てられたノックピン抜き
用治具によつて抜き出すことを特徴とするノックピンの
抜き出し方法。 ２、打ち込まれたノックピンを抜き出すための、抜き出
し用ボルトとパイプ及びナットによつて組み立てられた
ことを特徴とするノックピン抜き用治具。[Scope of Claims] 1. A method for extracting a knock pin, which comprises extracting a driven knock pin using a knock pin extractor jig assembled with an extractor bolt, a pipe, and a nut. 2. A dowel pin extraction jig, which is assembled with an extraction bolt, a pipe, and a nut for extracting a knocked-in knock pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7690490A JPH03281178A (en) | 1990-03-28 | 1990-03-28 | Knock pin pulling-off jig and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7690490A JPH03281178A (en) | 1990-03-28 | 1990-03-28 | Knock pin pulling-off jig and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03281178A true JPH03281178A (en) | 1991-12-11 |
Family
ID=13618655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7690490A Pending JPH03281178A (en) | 1990-03-28 | 1990-03-28 | Knock pin pulling-off jig and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03281178A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314479A (en) * | 1996-05-28 | 1997-12-09 | Fuji Tekunika:Kk | Drawing device for positioning pin |
| KR100863216B1 (en) * | 2007-08-21 | 2008-10-13 | 주식회사 정진하이테크 | A fuel injection nozzle exclusion tool for vehicles |
| JP2017128414A (en) * | 2016-01-20 | 2017-07-27 | 三菱電機ビルテクノサービス株式会社 | Tool for drawing support pin |
-
1990
- 1990-03-28 JP JP7690490A patent/JPH03281178A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314479A (en) * | 1996-05-28 | 1997-12-09 | Fuji Tekunika:Kk | Drawing device for positioning pin |
| KR100863216B1 (en) * | 2007-08-21 | 2008-10-13 | 주식회사 정진하이테크 | A fuel injection nozzle exclusion tool for vehicles |
| JP2017128414A (en) * | 2016-01-20 | 2017-07-27 | 三菱電機ビルテクノサービス株式会社 | Tool for drawing support pin |
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