JPS629021Y2 - - Google Patents
Info
- Publication number
- JPS629021Y2 JPS629021Y2 JP17716280U JP17716280U JPS629021Y2 JP S629021 Y2 JPS629021 Y2 JP S629021Y2 JP 17716280 U JP17716280 U JP 17716280U JP 17716280 U JP17716280 U JP 17716280U JP S629021 Y2 JPS629021 Y2 JP S629021Y2
- Authority
- JP
- Japan
- Prior art keywords
- holder
- rings
- fitted
- ring
- locking
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 208000028571 Occupational disease Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
【考案の詳細な説明】
本考案はエヤーハンマーの防振装置に関するも
のである。[Detailed Description of the Invention] The present invention relates to a vibration isolating device for an air hammer.
一般に打撃力を発生する工具、例えばエヤーハ
ンマー等に於て長期に亘つて使用するとその振動
によりはくろう病などの職業病にかかる危険があ
る。このため各種の防振対策を構じているが未だ
確実なものがない。例えばこの防振対策として特
開昭54−2903号公報に開示されたものがある。こ
れは振動や衝撃を容積が可変する空気室内の圧力
にて吸収緩和するもので、この振動の吸収方向は
定まつたものとなる。 Generally, when tools that generate impact force, such as air hammers, are used for a long period of time, there is a risk of contracting occupational diseases such as wax disease due to the vibrations. For this reason, various anti-vibration measures have been taken, but none are reliable yet. For example, as an anti-vibration measure, there is one disclosed in Japanese Patent Laid-Open No. 54-2903. This absorbs and alleviates vibrations and shocks using the pressure inside the air chamber, which has a variable volume, and the direction in which the vibrations are absorbed is fixed.
本考案では打撃力発生部後端において一体に設
けた筒状の保持具外周に振動を吸収する複数本の
Ｏリングを外嵌し、かつこれをハンドルに突設し
た筒状の外周壁内に嵌挿すると共にこのＯリング
を外周壁の内面中央に設けた内鍔の前部と後部に
夫々複数本づつ介在せしめ、Ｏリングをこの内鍔
と保持具に設けた係止鍔及び止め板間にて保持す
るようになし、このリングのもつ弾性を利用し
て、しかも振動の方向に関係なく、即ちあらゆる
方向の振動もこのＯリング群にて吸収するように
なしたことを特徴とする。 In the present invention, a plurality of O-rings for absorbing vibrations are fitted around the outer periphery of a cylindrical holder integrally provided at the rear end of the impact force generating part, and these O-rings are fitted inside the cylindrical outer peripheral wall protruding from the handle. At the same time as fitting, a plurality of O-rings are interposed at the front and rear parts of the inner flange provided at the center of the inner surface of the outer peripheral wall, and the O-rings are inserted between the inner flange and the locking flange and stop plate provided on the holder. The O-rings are held in place by the O-rings, and by utilizing the elasticity of the O-rings, the O-rings absorb vibrations regardless of the direction of vibration, that is, in all directions.
次に本考案を図示の実施例に基づいて説明す
る。 Next, the present invention will be explained based on the illustrated embodiments.
図に於て１はエヤーハンマーの打撃力発生部で
これは本体２内に摺動自在に嵌挿した打撃ピスト
ン３、このピストンの摺動方向を切り換えるバル
ブ４を具備して成る。この打撃力発生部１の後端
外周に有底短筒状の保持具７を嵌合して一体とす
ると共にこの保持具７の先端部外周にはＯリンク
８を係止するための係止鍔７ａをまた後端部には
止め板７ｂを保持具７にボルト止めする。この保
持具７の外周には複数本のＯリング８を嵌合し、
最前列のＯリング８ａは保持具７の係止鍔７ａに
て抜け止めとなり、最後列のＯリング８ｂは止め
板７ｂにて抜け止めとなつており、この複数本配
列したＯリング８の外周にはハンドル本体５に設
けた筒状の外周壁６を嵌合するが、この時ハンド
ル本体より供給される作動空気はＯリングの間、
例えば図示の如く何本目かのＯリング間をハンド
ル本体内に設けた鍔５ａにてその隙間を拡げて空
気通路５ｂを形成し、この空気通路５ｂを介して
打撃発生部１へ供給されるようになつている。上
記ハンドル本体５はバルブＶ及びこのバルブＶを
開閉操作をするレバーＬが具備されると共に上部
には打撃発生部１を嵌合する挿通孔を穿設する。
なおハンドルレバーＬの作動と同時に室５ｃにエ
ヤーを入れエヤークツシヨンの働きをさせること
ができる。そしてこの挿通孔に打撃発生部の後端
の保持具をこれに所要のＯリングを嵌合した後挿
通するがこれはまず鍔７ａとハンドル本体の第一
段目の鍔とに当接するようＯリングを嵌める。実
施例では３本のＯリングを嵌める。この状態で保
持具を支持せしめた打撃発生部をハンドル本体内
に嵌合した後さらに保持具とハンドル本体の外周
壁６間にしかも第二段目の内鍔に当接するように
してＯリングを嵌めて、次に止め板７ｂを保持具
７にねじ止めしてＯリングを介して打撃発生部を
ハンドル本体に支持せしめると共に止め板の外側
に対向するようにしてカバー９をハンドル本体に
係着して形成するものである。このように複数本
のＯリングをハンドル本体の挿入孔内周面に形成
される第一段、第二段の内鍔５ａ，５ａ間に空気
通路５ｂが形成されるものである。 In the figure, reference numeral 1 denotes a striking force generating section of an air hammer, which comprises a striking piston 3 slidably fitted into a main body 2, and a valve 4 for switching the sliding direction of this piston. A holder 7 in the shape of a short cylinder with a bottom is fitted to the outer periphery of the rear end of the impact force generating part 1 to form an integral body, and a holder 7 is provided on the outer periphery of the tip end of the holder 7 to lock the O-link 8. A stop plate 7b is bolted to the holder 7 at the rear end of the collar 7a. A plurality of O-rings 8 are fitted to the outer periphery of this holder 7,
The O-ring 8a in the front row is prevented from falling off by a locking collar 7a of the holder 7, and the O-ring 8b in the last row is prevented from falling out by a stop plate 7b. The cylindrical outer circumferential wall 6 provided on the handle body 5 is fitted into the handle body 5, but at this time, the working air supplied from the handle body flows between the O-rings.
For example, as shown in the figure, an air passage 5b is formed by widening the gap between some O-rings with a collar 5a provided inside the handle body, and air is supplied to the impact generating part 1 through this air passage 5b. It's getting old. The handle body 5 is provided with a valve V and a lever L for opening and closing the valve V, and has an insertion hole in the upper part into which the impact generating part 1 is fitted.
Note that air can be introduced into the chamber 5c at the same time as the handle lever L is operated to function as an air pump. Then, insert the holder at the rear end of the impact generating part into this insertion hole after fitting the required O-ring thereto. Insert the ring. In the example, three O-rings are fitted. In this state, after fitting the impact generating part supporting the holder into the handle body, insert an O-ring between the holder and the outer circumferential wall 6 of the handle body and in contact with the inner flange of the second stage. Then, the stop plate 7b is screwed to the holder 7 to support the impact generating part on the handle body via the O-ring, and the cover 9 is secured to the handle body so as to face the outside of the stop plate. It is formed by In this way, an air passage 5b is formed between the first and second stage inner flanges 5a, 5a in which a plurality of O-rings are formed on the inner peripheral surface of the insertion hole of the handle body.
而して本考案による時は打撃発生部の後端に、
前後両端外周にＯリング係止用の係止鍔・止め板
を設けて筒状の保持具を般合し、かつハンドル本
体上部に形成した筒状の外周壁内に挿通する時、
複数本のＯリングを外周壁中央内面に突設した鍔
の前後部に分けて介在せしめ、且この任意のＯリ
ング間に空気通路を形成するようになしているた
めハンドル部へ伝達されるあらゆる方向の振動が
このＯリングにて吸収され従来品に比べ少くなる
と共にハンドル本体から打撃発生部への空気の供
給が簡易、確実に行え、さらに小型軽量に行える
のでエヤーハンマーなどの手持の工具に於ても容
易に防振が行える等の利点を有する。 According to the present invention, at the rear end of the impact generating part,
When a cylindrical holder is provided with locking flange/stop plates for locking O-rings on the outer periphery of both front and rear ends, and is inserted into the cylindrical outer peripheral wall formed on the upper part of the handle body,
A plurality of O-rings are interposed between the front and rear parts of the collar protruding from the inner surface of the center of the outer circumferential wall, and an air passage is formed between any O-rings, so that any air transmitted to the handle part is This O-ring absorbs directional vibrations and reduces them compared to conventional products, and air can be easily and reliably supplied from the handle body to the impact generating part. Furthermore, it can be made smaller and lighter, so it can be used as a handheld tool such as an air hammer. It has the advantage that vibration isolation can be easily performed even in the case of
図面は本考案エヤーハンマーの防振装置を示す
断面図である。
１……打撃力発生部、２……本体、３……打撃
ピストン、４……バルブ、５……ハンドル本体、
６……外周壁、７……保持具、８……Ｏリング、
９……カバー、Ｌ……ハンドルレバー。
The drawing is a sectional view showing the vibration isolating device of the air hammer according to the present invention. DESCRIPTION OF SYMBOLS 1...Blow force generating part, 2...Body, 3...Blow piston, 4...Valve, 5...Handle body,
6...Outer peripheral wall, 7...Holder, 8...O ring,
9...Cover, L...Handle lever.
Claims (1)
具の前後端外周にＯリング係止用の係止鍔と止め
板を設け、この保持具の外周に振動を吸収するた
めの複数本のＯリングを嵌合するとともに、この
保持具をハンドルに突設した筒状の外周壁内に嵌
挿し、かつ前記複数本のＯリングを外周壁の内面
中央に設けた内鍔の前部と後部に夫々複数本づつ
介在せしめて成るエヤーハンマーの防振装置。 A locking flange for locking an O-ring and a stop plate are provided on the outer periphery of the front and rear ends of a cylindrical holder integrally provided at the rear end of the impact force generating part, and a plurality of locking plates for absorbing vibration are provided on the outer periphery of this holder. The front part of the inner flange is fitted with an O-ring of a book, and this holder is fitted into a cylindrical outer circumferential wall protruding from the handle, and the plurality of O-rings are provided at the center of the inner surface of the outer circumferential wall. A vibration isolating device for an air hammer consisting of multiple pieces interposed at the rear and rear sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17716280U JPS629021Y2 (en) | 1980-12-09 | 1980-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17716280U JPS629021Y2 (en) | 1980-12-09 | 1980-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57100480U JPS57100480U (en) | 1982-06-21 |
| JPS629021Y2 true JPS629021Y2 (en) | 1987-03-02 |
Family
ID=29970794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17716280U Expired JPS629021Y2 (en) | 1980-12-09 | 1980-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS629021Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017047482A (en) * | 2015-08-31 | 2017-03-09 | 瓜生製作株式会社 | Impact tool |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5326258B2 (en) * | 2007-11-01 | 2013-10-30 | 日立工機株式会社 | Impact tool |
| JP5395531B2 (en) * | 2009-06-19 | 2014-01-22 | 株式会社マキタ | Work tools |
-
1980
- 1980-12-09 JP JP17716280U patent/JPS629021Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017047482A (en) * | 2015-08-31 | 2017-03-09 | 瓜生製作株式会社 | Impact tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57100480U (en) | 1982-06-21 |
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