JPS5935748B2 - impact actuated air tools - Google Patents

impact actuated air tools

Info

Publication number
JPS5935748B2
JPS5935748B2 JP14500279A JP14500279A JPS5935748B2 JP S5935748 B2 JPS5935748 B2 JP S5935748B2 JP 14500279 A JP14500279 A JP 14500279A JP 14500279 A JP14500279 A JP 14500279A JP S5935748 B2 JPS5935748 B2 JP S5935748B2
Authority
JP
Japan
Prior art keywords
operating rod
cylinder
air supply
main body
head
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
Application number
JP14500279A
Other languages
Japanese (ja)
Other versions
JPS5669086A (en
Inventor
正一 邑川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Kuki KK
Original Assignee
Fuji Kuki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Kuki KK filed Critical Fuji Kuki KK
Priority to JP14500279A priority Critical patent/JPS5935748B2/en
Publication of JPS5669086A publication Critical patent/JPS5669086A/en
Publication of JPS5935748B2 publication Critical patent/JPS5935748B2/en
Expired legal-status Critical Current

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  • Portable Nailing Machines And Staplers (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Description

【発明の詳細な説明】 本発明は例えば合成樹脂の形成型におけるノックピン、
その他者種機器における固定用の部材等を外脱させる作
業、並びにピン等の打込み作業などに用いて効果的な′
空気作動工具に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dowel pin in a synthetic resin mold, for example.
Effective for removing fixing members, etc. of other types of equipment, and driving pins, etc.
It relates to air operated tools.

従来、合成樹脂の成形工場や、その他各種機械設備など
において、成形金型或いはその他機器要部の組立、分解
などに使われているノックピン若しくは係止片を、その
取付は位置から抜き出して分解するには、目的箇所に嵌
設したピン或いはその他の形状の係止片に予め設けられ
ている外脱用のボルト植込みねじ孔に頭付きボルトを螺
合突設したり、或いは一部を切削ぐなとしてそこに穿設
した掛は全保合孔を利用し、前記の外税用ボルトの場合
にはその頭部に係合する構造の掛は金を使用し、この掛
は金を先端に固着した長い柄付き杆でその杆部に適当な
重量′の把持容易な可動錘を摺動自在に組合せてなる構
成の工具を使用し、掛は金を目的とするノックピン又は
係止片側の外脱用ボルトに引掛けて、工具の柄を片手で
握って引張りつつ可動錘を該工具の柄端に付した鍔部に
打撃力を与えるよう摺動させ、この杆を介して目的物に
打撃推力を作用させて引抜く方式が多く使用されている
Conventionally, knock pins or locking pieces that are used in the assembly and disassembly of molding molds or other main parts of equipment in synthetic resin molding factories and other various mechanical equipment are installed by removing them from their positions and disassembling them. In order to do this, a bolt with a head is screwed into a screw hole for removing the bolt that is pre-provided on a pin or other shaped locking piece that has been fitted into the target location, or a portion of the bolt is cut. The hook drilled there uses the entire retaining hole, and in the case of the above-mentioned foreign tax bolt, the hook that engages the head is made of metal, and this hook has a gold tip. Use a tool consisting of a fixed, long-handled rod with a movable weight of appropriate weight and easy to grip attached to the rod in a slidable manner. Hook the tool onto the removal bolt, grasp the handle of the tool with one hand, and pull it while sliding the movable weight to apply impact force to the flange attached to the end of the handle of the tool, and use the rod to impact the object. A method of pulling out by applying thrust is often used.

勿論工場内で恒久設備として設置した流体圧やねじ番機
構を使用しての機械による方法を用いることもあるが、
自由位置でのピン等の引抜き作業には前記したような工
具を用いることが多く、このような工具による場合はそ
の作業性が低く、従ってピン等の着脱を多く行なう作業
場では当然不便をかこつpいる。
Of course, mechanical methods using fluid pressure or screw numbering mechanisms installed as permanent equipment in the factory may be used, but
The above-mentioned tools are often used to pull out pins, etc. in a free position, and when such tools are used, the work efficiency is low, and therefore it is naturally inconvenient in a workplace where pins, etc. are often attached and detached. There is.

本発明は斯かる現状に鑑みて、この種の作業をより合理
的に行ない得ると共に、必要に応じてピン等の打込み作
業も併せ行ない得るようにした空気工具を提供せんとす
るものである。
In view of the current situation, it is an object of the present invention to provide a pneumatic tool that can perform this type of work more rationally, and can also perform the work of driving pins, etc., if necessary.

即ち、本発明は主給気弁からフリーピストンを内設した
シリンダ内に到る給気通路中に交番作動式の自動切換給
気弁機構を設け、該自動切換給気弁機構によってフリー
ピストンがシリンダ内で往復動し、シリンダ内軸心上に
嵌挿した作動杆に衝撃力を付与して目的作業を行なうよ
うにした衝撃作動空気工具において、シリンダ内に嵌挿
してヘッドと一体の作動杆の先端部を本体若しくは本体
固着のカバーを貫通して外部に突出し、該作動杆の突出
端にはピン等目的物の引抜き用補助具の着脱可能な金具
を固着し、前記シリンダの他端には軸線方向に可動的に
嵌合した可動カバーを本体に対し装着し、該可動カバー
の嵌合端と作動杆ヘッド背面との間に反動消去用空間部
を形成したものである。
That is, the present invention provides an alternately operated automatic switching air intake valve mechanism in the air intake passage leading from the main air intake valve to the cylinder in which the free piston is installed, and the automatic switching air intake valve mechanism causes the free piston to move. In an impact-operated pneumatic tool that reciprocates within a cylinder and applies an impact force to an operating rod fitted on the axis of the cylinder to perform a desired work, the operating rod is fitted into the cylinder and integrated with the head. The tip of the operating rod protrudes to the outside through the main body or a cover fixed to the main body, a removable metal fitting of an auxiliary tool such as a pin is fixed to the protruding end of the operating rod, and the other end of the cylinder is fixed to the protruding end of the operating rod. A movable cover that is movably fitted in the axial direction is attached to the main body, and a recoil-eliminating space is formed between the fitted end of the movable cover and the back surface of the operating rod head.

本発明にては主給気弁を備えた本体の内部に、交番作動
式のスリーブ型自動給気弁機構を内設したシリンダを嵌
設し、該シリンダ内には前記自動切換給気弁機構と離れ
た位置にヘッドが配される状態で該ヘッドと一体の作動
杆を中心軸線上に設けて、その杆端を本体嵌設の固定カ
バーから外側に突出させ、斯くした固定カバー内端部と
ヘッドとの間のシリンダ内にはフリーピストンを作動杆
に被嵌せしめて設け、該作動杆の突出端部にはピン等の
引抜き用補助具の着脱可能な金具を固着し、前記シリン
ダの他端には可動カバーの中央部を軸線方向に可動的に
嵌合して、該カバー嵌合端と作動杆ヘッドとの間に自動
給気弁機構に繋がる反動消去用空間部を形成したもので
ある。
In the present invention, a cylinder having an alternately operated sleeve-type automatic air supply valve mechanism is fitted inside a main body provided with a main air supply valve, and the automatic switching air supply valve mechanism is installed in the cylinder. An operating rod integral with the head is provided on the central axis with the head disposed at a position apart from the head, and the rod end protrudes outward from the fixed cover fitted into the main body, and the inner end of the fixed cover is A free piston is provided in the cylinder between the cylinder and the head by being fitted onto an operating rod, and a removable fitting for a pulling aid such as a pin is fixed to the protruding end of the operating rod. The center part of a movable cover is movably fitted in the axial direction at the other end, and a recoil elimination space connected to the automatic air supply valve mechanism is formed between the cover fitting end and the operating rod head. It is.

而して本発明にては前記した本体の一端に嵌設する固定
カバーと他端に係合せる可動カバーとは、本体の側部に
おいて可動カバーの取付はフランジ面にばね力を付加せ
しめてボルト締結し、可動カバーのみが軸線方向に適宜
量フリーピストンの打撃時可動なようにし、打撃時の作
動杆ヘッドに作用する反動力を消去するように構成した
のである。
According to the present invention, the fixed cover fitted to one end of the main body and the movable cover engaged to the other end are attached to the side of the main body by applying spring force to the flange surface and bolting. When the free piston is fastened, only the movable cover is movable in the axial direction by an appropriate amount when the free piston is struck, so that the reaction force acting on the operating rod head at the time of striking is eliminated.

また本発明は作動杆のヘッド反対側にも制作動杆を同軸
線上に適宜長さで一体に形成し、可動カバーの中央ボス
部には段付き凹所と制作動杆貫通孔とを同一軸心にて設
け、その凹所にはアンビルと該アンビルに遊被嵌するフ
ァインダースリーブとをそれぞれ段部と内端とに巻ばね
を介在せしめて配すると共に、ファインダースリーブの
鍔部に係合する可動調節ナツトを凹所開口部に螺合せし
め、アンビル頭部に対して副作動杆端が当接して打撃力
をアンビルに付与できるようにしたのである。
In addition, the present invention integrally forms the production movement rod on the opposite side of the operation rod head with an appropriate length on a coaxial line, and the stepped recess and the production movement rod through hole are coaxially formed in the central boss portion of the movable cover. An anvil and a finder sleeve loosely fitted onto the anvil are arranged in the recess with coil springs interposed between the stepped portion and the inner end, and the finder sleeve is engaged with the flange of the finder sleeve. A movable adjustment nut is screwed into the recessed opening, so that the end of the auxiliary actuating rod abuts against the anvil head, thereby applying impact force to the anvil.

そしてファインダースリーブの突出端外周には合成樹脂
或いはゴム等対象物の表面に対する当接時の保護体を固
着し、かつ突出端内周部には被打撃体の頭部が必要に応
じて受入れるように形成したのである。
A protector such as synthetic resin or rubber is fixed to the outer periphery of the protruding end of the finder sleeve when it comes into contact with the surface of the object, and the inner periphery of the protruding end is designed to receive the head of the object to be struck as necessary. It was formed in

更に作動杆先端に取付けた引抜き掛は金に係合せしめる
ノックピン等への螺合ポル1〜は、その頭部をアダプタ
ーに取替え可能に取付けて、このアダプターが該引抜き
掛は金に設けた係合寝所に嵌脱可能に装着し得る鍔部を
備えたものと組合せて用いるように構成したのである。
Furthermore, the pull-out latch attached to the tip of the operating rod is screwed onto a dowel pin, etc., which engages with the metal. It is configured to be used in combination with a flange that can be removably attached to a sleeping area.

次に本発明工具を一実施例について図面により詳述すれ
は、第1図乃至第6図に示すものは引抜き操作と打込み
操作とが行ない得るように構成したものであって、円筒
状の主体部2から図上下側に中空状の枠形槽3を突設せ
しめて本体1を形成し、この本体1の主体部2の一端に
は固定カバー3を嵌合せしめ、他端には可動カバー4を
係合し、該カバー3,4と本体1とは、該本体の両側部
でボルト5にて可動カバー4のフランチ41部に巻はね
6を当接せしめて締結し一体的になし、斯くなした本体
1内にはシリンダ7を該本体の主体部2中心軸線にその
中心を合致せしめて、一端部外周に刻設のねじ部7′を
固定カバ−3内周のねじ部3′(改合し、かつ他端部を
本体1端穿設の受支孔2′に嵌合して装着し、このシリ
ンダγ内には固定カバー3の中心に穿設した孔3“を貫
通して可動カバー4側寄りにヘッド11を配したこれと
一体の作動杆10を設け、更に該作動杆10に被嵌して
ヘッド11と固定カバ−3内端部との間に円筒形のフリ
ーピストン13を設けてなる。
Next, one embodiment of the present invention tool will be described in detail with reference to the drawings.The tool shown in FIGS. The main body 1 is formed by protruding a hollow frame-shaped tank 3 from the part 2 upward and downward in the figure.A fixed cover 3 is fitted to one end of the main body 2 of the main body 1, and a movable cover is fitted to the other end. 4 are engaged, and the covers 3, 4 and the main body 1 are integrally fastened by bolts 5 on both sides of the main body by bringing the coil springs 6 into contact with the flange 41 of the movable cover 4. Inside the main body 1 thus constructed, a cylinder 7 is placed with its center aligned with the central axis of the main body 2 of the main body, and a threaded portion 7' carved on the outer periphery of one end is fixed to the threaded portion 3 on the inner periphery of the cover 3. (The other end is fitted into the support hole 2' drilled at one end of the main body, and a hole 3' drilled at the center of the fixed cover 3 is inserted into the cylinder γ.) An operating rod 10 with a head 11 disposed near the movable cover 4 is provided integrally with the operating rod 10, and a cylindrical rod is fitted between the head 11 and the inner end of the fixed cover 3 and is fitted onto the operating rod 10. A free piston 13 is provided.

而してシリンダ7の内端部にはスリーブ形の自動切換給
気弁機構20が嵌設してあり、該給気弁機構20には本
体1の柄部3に設けた主給気弁30の給気流人室31側
から給気通孔32を経て給気室15に圧気が受入れられ
るようになっており、自動切換給気弁機構10の一例と
して第5図に示すものはシリンダ−7端内部に嵌設して
外端を固定カバー3内嵌設の受座板29に密接せるバル
ブボックス21と、その内側に摺動可能に嵌挿されたス
リーブ形バルブ22とからなり、図示の如く該バルブ2
2には内端部と外周部とに差圧によって軸方向に摺動す
るよう有段部を設けてバルブボックス21側との間に給
排気通路をも形成しである。
A sleeve-shaped automatic switching air supply valve mechanism 20 is fitted into the inner end of the cylinder 7, and the air supply valve mechanism 20 includes a main air supply valve 30 provided on the handle 3 of the main body 1. The air supply valve mechanism 10 shown in FIG. It consists of a valve box 21 which is fitted inside the end and whose outer end is brought into close contact with a catch plate 29 fitted into the fixed cover 3, and a sleeve-shaped valve 22 which is slidably fitted inside the valve box 21, as shown in the figure. Like the valve 2
2 is provided with a stepped portion between the inner end and the outer circumferential portion thereof so as to slide in the axial direction due to a pressure difference, and an air supply/exhaust passage is also formed between the valve box 21 and the valve box 21 side.

また該バルブボックス21に設けた切換給排気通孔23
.23’はバルブ22の前後摺動により切換えられるよ
うになされており、通孔17の先端部には作動杆10ヘ
ツド11の前側と後側緩衝室16とに連通ずる開口部1
7f17“が設けてあり、シリンダー7のピストン13
作動室側には中間部ともう一方の給排気通孔18とに通
孔18f18“が穿設されており、更に排気通孔18と
導通孔25′とに連絡するようにしてシリンダ7の中間
部外周には環状の一次排気室27をキャップ状のリング
体8とで形成し、この一次排気室27から本体1内空間
部に対して適宜数の通孔8′を介して排気が放出される
ようになし、本体1の内部空間を二次排気室28工し、
該二次排気室28から本体1の側部に穿設した複数の小
孔28′を通じて外部に排気が消音放出されるようにな
っている。
In addition, a switching supply/exhaust hole 23 provided in the valve box 21
.. 23' is configured to be switched by sliding the valve 22 back and forth, and the tip of the through hole 17 has an opening 1 that communicates with the front side of the operating rod 10 and the head 11 and the rear buffer chamber 16.
7f17" is provided, and the piston 13 of the cylinder 7
On the working chamber side, a through hole 18f18'' is bored in the middle part and the other air supply/exhaust hole 18, and a hole 18f18'' is formed in the middle part of the cylinder 7 so as to communicate with the exhaust hole 18 and the through hole 25'. An annular primary exhaust chamber 27 is formed on the outer periphery of the main body 1 by a cap-shaped ring body 8, and exhaust gas is discharged from this primary exhaust chamber 27 into the inner space of the main body 1 through an appropriate number of through holes 8'. 28 secondary exhaust chambers are constructed in the internal space of the main body 1 so as to
Exhaust gas is silently discharged from the secondary exhaust chamber 28 to the outside through a plurality of small holes 28' formed in the side of the main body 1.

また可動カバー4は前記したように本体に対してボルト
5,5にてフランジ41部で可動的に締結されると共に
、その中央部内側に突出したボス4′を前記シリンダー
7の内端に嵌挿し、シリンダー7内に嵌挿された部分が
緩衝室10を形成するよう滑合されており、更に外側に
突出せる中央ボス42には段付凹所43を形成し、これ
に対して該カバー4中心に穿設した孔4“を貫通して作
動杆10と一体同軸の制作動杆12先端部を臨ませ、こ
の制作動杆12により操作される適宜長さのアンビル4
4と、該アンビル44に遊被嵌するファインダースリー
ブ45とを、それぞれ凹所43の段部43’、43“と
各内端との間に巻はね46゜46′を介在せしめて配し
、凹所の開口部内周に設けた雌ねじ47に螺合してスリ
ーブ状の調節ナツト48を設け、このナツト48の内周
段部48′に前記ファインダースリーブ45の鍔45′
が係合して、調節ナツト48の回動によりスリーブ45
の出入り寸法が加減できるようになされている。
Further, as described above, the movable cover 4 is movably fastened to the main body at the flange 41 with bolts 5, 5, and a boss 4' protruding inward at the center thereof is fitted into the inner end of the cylinder 7. The part inserted into the cylinder 7 is slidably fitted to form a buffer chamber 10, and a stepped recess 43 is formed in a central boss 42 that can protrude outward, and a stepped recess 43 is formed in response to the cover. An anvil 4 of an appropriate length is inserted through a hole 4'' drilled in the center of 4 to expose the tip of a production movement rod 12 that is integrally coaxial with the operation rod 10, and is operated by this production movement rod 12.
4 and a finder sleeve 45 that loosely fits onto the anvil 44 are arranged with winding springs 46° 46' interposed between the step portions 43', 43'' of the recess 43 and each inner end. A sleeve-shaped adjusting nut 48 is provided by screwing onto a female thread 47 provided on the inner periphery of the opening of the recess, and a collar 45' of the finder sleeve 45 is attached to an inner circumferential step 48' of this nut 48.
is engaged, and by rotation of the adjustment nut 48, the sleeve 45
The dimensions of the entrance and exit can be adjusted.

そしてファインダースリーブ45の先端外周には合成樹
脂製又はゴム質製の環状保護体45“を取付け、また内
端部は被打撃物端の進入容易なように形成してなり、か
つ後端部内周面にはアンビル44の頭部44′が受止め
られる傾斜面を削成してなる。
An annular protector 45'' made of synthetic resin or rubber is attached to the outer periphery of the tip of the finder sleeve 45, and the inner end is formed so that the end of the object to be struck can easily enter, and the inner periphery of the rear end. The surface is formed by cutting an inclined surface into which the head 44' of the anvil 44 is received.

而して作動杆10の突出端には引抜き掛は金35を装着
し、この掛は金35の一例としては第1図及び第4図に
示す如く引抜き用ボルトBのアダプタ−36鍔部36′
が係合し得る段35“付き切込み溝35′を有し、後半
部が作動杆10端に固着せるものであり、アダプター3
6には第1図のようにその中央段付孔36“内にポルt
−Bの頭部B′を嵌挿して該段付孔36“に螺合するプ
ラグ37によりボルト頭部B′を固定するようにしたも
のである。
A metal 35 is attached to the protruding end of the operating rod 10, and an example of this metal 35 is the adapter 36 flange 36 of the extraction bolt B as shown in FIGS. 1 and 4. ′
It has a cut groove 35' with a step 35'' that can be engaged with, and the rear part is fixed to the end of the operating rod 10, and the adapter 3
6 has a port in its central stepped hole 36" as shown in Figure 1.
The bolt head B' is fixed by a plug 37 that is inserted into the stepped hole 36'' and screwed into the stepped hole 36''.

なお図中符号32は給気ホース接続口、33は主給気弁
の操作スピンドル、34は主給気弁操作レバー、3′柄
握持部、9は補助バンドル、50はカバー、51,52
,53はシール用0リング、22’、23“は通気小孔
、49はストッパーピン、48“はナツトの位置決め切
欠きである。
In the figure, reference numeral 32 is an air supply hose connection port, 33 is a main air supply valve operating spindle, 34 is a main air supply valve operating lever, 3' is a handle grip, 9 is an auxiliary bundle, 50 is a cover, 51, 52
, 53 are O-rings for sealing, 22' and 23'' are small ventilation holes, 49 is a stopper pin, and 48'' is a notch for positioning the nut.

斯くなされた本発明工具の作用を説明するに、本体1の
柄3部に設けた給気ホース接続口32に圧縮空気源から
の圧気供給ホースを接続しておき、作動杆10の先端引
抜き掛は金35に、予め引抜こうとするピン或いは係止
片に植設したボルトB頭部B電付けのアダプター36を
、該掛は金35の切込み溝35′に係合せしめ、しかる
後肢アダプター36が掛は金35の段部35“に嵌り合
った状態にして工具の柄部3及び補助バンドル9を握っ
て引抜き方向に本体1を保ちつつ主給気弁操作レバー3
4を引き、主給気弁30を開けば、該弁から給気通孔3
2を経て自動切換給気弁機構20への給気室15に圧気
が流入し、第1図の状態ではバルブボックス21の通孔
23“からバルブ22に設けた通孔22′を経て該パル
プ22内空間部24に圧気が進入するので、フリーピス
トン13はシリンダーγのヘッド11側空間部アがこの
時点で排気通孔18’、 18“を介して大気開放状態
にあるからその前後の差圧でヘッド11に向って急激に
移動して該ヘッド11に衝突し、このフリーピストン1
3の移動工程で先づ初動時シリンダー7内への通孔23
′が閉じ、この間にバルブ22がヘッド11側に向って
摺動して給排気通孔17への給気が断たれ、逆にシリン
ダー7内は該通孔23′がバルブ22により形成された
連通室25から導通孔25′を介して一次排気室27に
連通し、フリーピストン13の前後の差圧が維持される
態勢となり、次いで通孔18“がピストン13によって
閉じられることによりシリンダー7内の排気は開口部1
7′から通孔17、連通室25を経て導通孔25′より
一次排気室2γに流れ、二次排気室28に排出されるの
であり、フリーピストン13が中間部の通孔18“の閉
鎖を解除する直前、開放された通孔18′からバルブボ
ックス21とバルブ22の前段部とによって形成される
環状空間26及び常時給気室15に通気孔23“を介し
て給気状態にある後段部とバルブボックス21とによっ
て形成される環状給気空間26°′とに圧気が導入され
、この瞬間バルブ22の先の移動時に作用した動作力に
打勝って該バルブ22は元の位置に戻されるのであり、
フリーピストン13がヘッド11に衝突する直前中間部
の通孔18“が開口してシリンダー13のフリーピスト
ン背後側が大気開放され、バルブ22の切換えによって
今度は給気室15から給気通孔23“、連通室25、給
排気通孔17を経て開口部17′よりシリンダー1のヘ
ッド側に圧気が流入し、ピストン13は押戻されるので
あり、この際の排気は中間部排気通孔18“及び通孔1
8′から環状空間26、導通孔25“を経て排気室21
゜28に排出される。
To explain the operation of the tool of the present invention, a compressed air supply hose from a compressed air source is connected to the air supply hose connection port 32 provided in the handle 3 of the main body 1, and the tip of the operating rod 10 is pulled out. An adapter 36 with a bolt B head B electrically attached to the pin or locking piece that is to be pulled out in advance is engaged with the cut groove 35' of the hook 35, and the corresponding hind leg adapter 36 is attached to the hook 35. With the hook engaged with the stepped part 35'' of the metal 35, hold the tool handle 3 and the auxiliary bundle 9, and while keeping the main body 1 in the pulling direction, move the main air supply valve operating lever 3.
4 and open the main air supply valve 30, the air supply vent 3 will be opened from the valve.
Pressurized air flows into the air supply chamber 15 to the automatic switching air supply valve mechanism 20 through the valve 22, and in the state shown in FIG. Since pressure enters the inner space 24 of the free piston 13, the free piston 13 is opened to the atmosphere through the exhaust holes 18' and 18'' at this point, so the difference between the front and rear of the free piston 13 is The free piston 1 suddenly moves toward the head 11 due to the pressure and collides with the head 11.
In the moving process of step 3, the through hole 23 into the cylinder 7 is first opened during the initial movement.
' is closed, and during this time the valve 22 slides toward the head 11 side, cutting off the air supply to the air supply/exhaust hole 17, and conversely, the valve 22 forms the air hole 23' inside the cylinder 7. The communication chamber 25 communicates with the primary exhaust chamber 27 via the communication hole 25', and the differential pressure across the free piston 13 is maintained.Then, the communication hole 18'' is closed by the piston 13, so that the inside of the cylinder 7 is The exhaust is from opening 1
7', passes through the through hole 17 and the communication chamber 25, flows from the through hole 25' to the primary exhaust chamber 2γ, and is discharged to the secondary exhaust chamber 28, and the free piston 13 closes the intermediate hole 18''. Immediately before release, air is supplied to the annular space 26 formed by the valve box 21 and the front part of the valve 22 and the rear part of the valve 22 through the vent hole 23'' through the opened air hole 18'. Pressure is introduced into the annular air supply space 26°' formed by the valve box 21 and the valve box 21, and at this moment the operating force acting on the valve 22 during its previous movement is overcome and the valve 22 is returned to its original position. It is,
Just before the free piston 13 collides with the head 11, the intermediate vent 18'' opens, and the rear side of the free piston of the cylinder 13 is exposed to the atmosphere, and by switching the valve 22, the air supply vent 23'' is transferred from the air supply chamber 15 to the air supply vent 23''. Pressure flows into the head side of the cylinder 1 from the opening 17' through the communication chamber 25 and the supply/exhaust vent 17, and the piston 13 is pushed back. Through hole 1
8' to the annular space 26 and the exhaust chamber 21 via the conduction hole 25''.
It is discharged at ゜28.

このようにしてピストン13をヘッド11に衝突させる
ことにより打撃力を与え、この動作を頻繁に繰返し、ヘ
ッド11と一体の作動杆10に後退方向にのみ頻繁な引
戻し衝撃力が付与されることになり、その結果作動杆1
0先端の掛は金35に保合連結したアダプター36を介
しての引抜き用ボルトBにて目的のノックピン、或いは
係止片Aに激しく引抜き方向の衝撃振動が加えられ、急
速に係止摩擦力を失なわせてそれを外脱させることがで
きるのである。
In this way, impact force is applied by causing the piston 13 to collide with the head 11, and this action is repeated frequently, resulting in frequent retraction impact force being applied only in the backward direction to the operating rod 10 that is integrated with the head 11. As a result, the operating rod 1
The latch at the tip of the bolt 35 is connected to the adapter 36 that is connected to the bolt 35, and the bolt B for pulling out violently applies shock vibrations in the pulling direction to the target knock pin or locking piece A, and the locking friction force is rapidly generated. You can make it disappear by making it disappear.

而してこの作動杆10のヘッド11に対するフリーピス
トン13の移動衝撃力の付与時反動で該ヘッド11が後
退することになり、給排気通孔17を通じてヘッド11
の背後の緩衝室16にも圧気が一部供給されて作動杆の
戻し動作を行なわしめるようになされているので、衝撃
力を付与された瞬間通常なれば該緩衝室16内の圧気が
圧縮されて衝撃力が一部圧気の圧縮のために消費される
ことになってその分だけ引抜き作用力が削減され、効率
が低下することになるが、本発明にてはこの緩衝室16
の一側面をなす可動カバー4、ボス4′が、前記したよ
うに該可動カバー4は軸方向に締結ボルト5部において
巻ばね6を介し取付けられているので、ヘッド11に衝
撃力が作用した瞬間緩衝室16の圧気に伝播する作用力
で可動カバー4が外方に移動し、該ヘッドを介して作動
杆10に作用せしめる引抜き作用力の低減を防止し効率
よく作動するようにしたのである。
When the moving impact force of the free piston 13 is applied to the head 11 of the operating rod 10, the head 11 moves backward due to the reaction, and the head 11
Part of the pressure air is also supplied to the buffer chamber 16 behind the buffer chamber 16 to cause the operating rod to return, so that the pressure in the buffer chamber 16 would normally be compressed at the moment an impact force is applied. However, in the present invention, this buffer chamber 16
Since the movable cover 4 and the boss 4' forming one side are attached in the axial direction via the coil spring 6 at the fastening bolt 5 portion as described above, an impact force is applied to the head 11. The movable cover 4 is moved outward by the acting force propagated to the pressure of the instantaneous buffer chamber 16, and the pulling force acting on the operating rod 10 through the head is prevented from being reduced, so that the movable cover 4 can operate efficiently. .

斯くして目的物の引抜きが終れば主給気弁操作レバー3
4を放すことにより、該主給気弁30が閉じ、ピストン
13の往復動が停止するので、掛は金35に係合せしめ
たアダプター36を取外すことで該目的物とこれに植込
んだボルトBとを取除き、別の目的箇所に工具を向けて
、前記と同じ要領で引抜き作業を行なえばよい。
When the target object has been extracted in this way, the main air supply valve operating lever 3
By releasing 4, the main air supply valve 30 closes and the reciprocating movement of the piston 13 is stopped. By removing the adapter 36 engaged with the latch 35, the object and the bolt inserted therein are removed. It is sufficient to remove B, direct the tool to another target location, and perform the pulling operation in the same manner as described above.

なお、引抜き用ボルトの寸法が異なる場合例えば第6図
に示す如くボルト寸法が小さい場合にはその茎部B1根
本から頭部B2にかけて補助環38を被嵌せしめ、これ
をアダプター36内に嵌込んで標準のボルトと同様に使
用すればよい。
If the dimensions of the extraction bolt are different, for example, if the bolt dimensions are small as shown in FIG. You can use it like a standard bolt.

勿論掛は金の要所寸法が異なるものと取替えて使用して
もよい。
Of course, the hook may be replaced with one having a different key metal dimension.

或いは上記したような掛は金のほか、引掛は孔を有する
係止片などに対しては鉤片を有する構造の掛は金を使用
すること、或いは必要に応じてチャック式のような掛は
金を使用するようにしてもよい。
Alternatively, in addition to the above-mentioned hooks, metal may be used for hooks with hooks for locking pieces with holes, or hooks with hooks may be used as necessary. You may choose to use gold.

以上に説明したのはノックピン等の引抜き工具としての
機能についての作動態様であるが、掛は金35取付は部
と反対の向きに突設したファインダースリーブ45とア
ンビル44との側を使用することによりハンマーとして
使用することができるのであり、この場合は打込み目的
物例えばピンの頭部をファインダースリーブ45の開口
先端に当がってはね46カに抗して押付け、本体1のバ
ンドル9と柄部3とを握って操作レバー34を引くこと
で、前記引抜き時と同様の動作により、作動杆10のヘ
ッド11に作用する衝撃力で該ヘッドに直結の制作動杆
12先端によりアンビル44頭部44′を打撃し、該ア
ンビル44により目的のピン等の頭部に打撃力を付加し
て打込み作業を行なうことができるのであり、この際フ
ァインダースリーブ45が対向面等に当接してもその先
端には保護環45“かけされているので傷付けることな
く所期の目的を達成し得るのである。
What has been explained above is the operating mode of the function as a pull-out tool such as a dowel pin. However, when attaching the hook 35, use the side of the finder sleeve 45 and anvil 44 that protrude in the opposite direction to the part. In this case, the object to be driven, for example, the head of a pin, is pressed against the open end of the finder sleeve 45 against the spring 46, and the bundle 9 of the main body 1 and the head of the pin are pressed. By grasping the handle 3 and pulling the operating lever 34, the same action as when pulling out the lever causes the impact force acting on the head 11 of the operating rod 10 to cause the tip of the production operating rod 12 directly connected to the head to release the anvil 44 head. The driving operation can be performed by striking the part 44' and applying a striking force to the head of the target pin etc. by the anvil 44. At this time, even if the finder sleeve 45 comes into contact with the opposing surface etc. A protective ring 45'' is placed on the tip, so the intended purpose can be achieved without damaging it.

なお、上記の実施例にては引抜きと打込みとの両作業を
一台の工具で行なえるようにしたものであるが、引抜き
作業専用として使用する場合にはアンビル、ファインダ
ースリーブなどを取除き、可動側カバーの凹所には盲蓋
を付すか、或いはバンドル付きの蓋体を取付けるように
してもよい。
In addition, in the above embodiment, both the pulling and driving operations can be performed with one tool, but when the tool is used exclusively for the pulling operation, the anvil, finder sleeve, etc. can be removed. A blind cover may be attached to the recess of the movable side cover, or a cover body with a bundle may be attached.

また副作動杆を設けることなく、可動カバーの凹所もな
いものにしてもよい。
Further, the movable cover may have no recess without providing the sub-operating rod.

更に切換給気弁の構成についても上記の実施例に限定す
ることはなく、他の型式によって行なうようにしても同
様効果を得ることができる。
Further, the structure of the switching air supply valve is not limited to the above embodiment, and similar effects can be obtained even if other types are used.

斜上の如く本発明によれば、従来手動によって多くの労
力を要しつつ引抜き操作を行なわねばならなかったもの
を、目的とする箇所に予め植えたボルトの頭部にアダプ
ターを付し、或いは引抜こうとする目的物の形状に合せ
て、これに適合する掛は金を介して作動杆先端部と連結
することにより、あとは給気操作を行ないつつ軽く引張
れば、作動杆に対して引抜き衝撃力が目的物に強力に付
加されて迅速に引抜くことができるのであり、しかもこ
の引抜き力を作動杆に効率よく作用させる構成にして小
型で強力なそして手軽に持運びできるようになし、必要
に応じて打撃ハンマーとしても利用できるようなした極
めて効果的な空気工具である。
According to the present invention, it is possible to replace bolts that conventionally had to be manually pulled out with great effort by attaching an adapter to the head of a bolt that has been previously planted in the desired location. Depending on the shape of the object you are trying to pull out, a suitable hook is connected to the tip of the operating rod via a metal piece, and all you have to do is supply air and pull it lightly, and it will be attached to the operating rod. A powerful pulling impact force is applied to the target object, allowing it to be pulled out quickly.Moreover, this pulling force is efficiently applied to the operating rod, making it compact, powerful, and easily portable. It is an extremely effective pneumatic tool that can also be used as a percussion hammer if necessary.

従って直接的に引抜き処理する必要のある分解作業を要
する工場等で使用してけだし効果的である。
Therefore, it is effective for use in factories and the like that require disassembly work that requires direct extraction.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明工具の一実施例を示すものであって、第1
図は縦断面図、第2図は第1図のI−II視図、第3図
は締結要部の断面図、第4図は第1図のIV−IV断面
図、第5図は自動切換給気弁機構部分の詳細図、第6図
は引抜き用ボルトの異種寸法に対応したアダプター取付
は部の断面図である。 1・・・・・・本体、2・・・・・・主体部、3・・・
・・・固定カバー、4・・・・・・可動カバー、5・・
・・・・ボルト、6,46゜46′・・・・・・巻ばね
、7・・・・・・シリンダ、10・・・・・・作動杆、
11・・・・・・ヘッド、12・・・・・・副作動杆、
13・・・・・・フリーピストン、15・・・・・・給
気室、16・・・・・・緩衝室、17,18,18’、
18“・・・・・・連子L20・・・・・・自動切換給
気弁機構、21・・・・・・バルブボックス、22・・
・・・・バルブ、27・・・・・・一次排気室、28・
・・・・・二次排気室、30・・・・・・給気弁、35
・・・・・・掛は金、36・・・・・・アダプター、4
2・・・・・・ボス、43・・・・・・凹所、43’、
43“・・・・・・段部、44・・・・・・アンビル、
45・・・・・・ファインダースリーブ、48・・・・
・・調節ナツト、B・・・・・・ボルト。
The drawings show one embodiment of the tool of the present invention.
The figure is a longitudinal sectional view, Figure 2 is a view from I-II in Figure 1, Figure 3 is a cross-sectional view of the main parts of the fastening, Figure 4 is a cross-sectional view from IV-IV in Figure 1, and Figure 5 is an automatic FIG. 6 is a detailed view of the switching air supply valve mechanism, and FIG. 6 is a cross-sectional view of the adapter attachment section corresponding to different sizes of extraction bolts. 1...Main body, 2...Main part, 3...
...Fixed cover, 4...Movable cover, 5...
...Bolt, 6,46゜46'...Coil spring, 7...Cylinder, 10...Operating rod,
11...Head, 12...Sub-operating rod,
13... Free piston, 15... Air supply chamber, 16... Buffer chamber, 17, 18, 18',
18"...Connector L20...Automatic switching air supply valve mechanism, 21...Valve box, 22...
...Valve, 27...Primary exhaust chamber, 28.
...Secondary exhaust chamber, 30...Air supply valve, 35
...Holding is gold, 36...Adapter, 4
2...boss, 43...recess, 43',
43"... step section, 44... anvil,
45...Finder sleeve, 48...
...adjustment nut, B...bolt.

Claims (1)

【特許請求の範囲】 1 主給気弁からフリーピストンを内設したシリンダ内
に到る給気通路中に交番作動式の自動切換給気弁機構を
設け、該自動切換給気弁機構によってフリーピストンが
シリンダ内で往復動しシリンダ内に嵌挿した作動杆に衝
撃力を付与して目的作業を行なうようにした空気工具に
おいて、シリンダ内に嵌挿してヘッドと一体の作動杆の
先端部を本体若しくは本体固着のカバーを貫通して外部
に突出し、該作動杆の突出端にはピン等目的物の引抜き
用補助具の着脱可能な金具を固着し、前記シリンダの他
端には軸線方向に可動的に嵌合した可動カバーを本体に
対し装着し、該可動カバーの嵌合端と作動杆ヘッド背面
との間に反動消去用空間部を形成したことを特徴とする
衝撃作動空気工具。 2 主給気弁からフリーピストンを内設したシリンダ内
に到る給気通路中に交番作動式の自動切換給気弁機構を
設け、該自動切換給気弁機構によってフリーピストンが
往復動しシリンダ内に嵌挿した作動杆に衝撃力を付与し
て目的作業を行なうようにした空気工具において、シリ
ンダ内に嵌挿して一端を本体若しくは本体固着のカバー
を貫通して外部に突出し、該作動杆の突出端にピン等目
的物の引抜き用補助具の着脱可能な金具を取付け、かつ
該作動杆と一体のヘッド反対側には同軸線上に適宜長さ
の副作動杆を設け、前記シリンダの他端にて軸線方向に
可動的に嵌合して本体に装着した可動カバーの嵌合端と
作動杆ヘッド背面との間に反動消去空間を形成すると共
に、該可動カバーの中央ボス内に形成の凹所には適宜長
さのアンビルを出入寸法調節可能に内装せしめたファイ
ンダースリーブを被嵌せしめて設け、該アンビルに対し
て前記副作動杆先端が当接するよう可動カバーを貫通せ
しめて凹所内に突出したことを特徴とする衝撃作動空気
工具。
[Claims] 1. An alternately operated automatic switching air supply valve mechanism is provided in the air supply passage leading from the main air supply valve to the cylinder in which the free piston is installed, and the automatic switching air supply valve mechanism In a pneumatic tool in which a piston reciprocates within a cylinder and applies an impact force to an operating rod inserted into the cylinder to perform a desired work, the tip of the operating rod that is inserted into the cylinder and is integrated with the head is It protrudes to the outside through the main body or a cover fixed to the main body, and a removable metal fitting for an auxiliary tool for pulling out an object, such as a pin, is fixed to the protruding end of the operating rod, and the other end of the cylinder is provided with a removable metal fitting for an auxiliary tool for pulling out an object, such as a pin. An impact-operated pneumatic tool, characterized in that a movable cover movably fitted is attached to the main body, and a recoil eliminating space is formed between the fitted end of the movable cover and the back surface of the operating rod head. 2. An alternately operated automatic switching air supply valve mechanism is installed in the air supply passage leading from the main air intake valve to the cylinder in which the free piston is installed, and the automatic switching air supply valve mechanism causes the free piston to reciprocate and close the cylinder. In a pneumatic tool that performs a desired work by applying an impact force to an operating rod inserted into the cylinder, the operating rod is inserted into the cylinder and has one end protruding to the outside through the main body or a cover fixed to the main body. A removable metal fitting for an auxiliary tool for pulling out an object, such as a pin, is attached to the protruding end of the cylinder, and a sub-operating rod of an appropriate length is provided on the same axis on the opposite side of the head that is integrated with the operating rod. A recoil eliminating space is formed between the fitting end of the movable cover attached to the main body and movably fitted in the axial direction at the end and the back surface of the operating rod head. A finder sleeve having an anvil of an appropriate length fitted inside the recess so that its dimensions can be adjusted in and out is provided, and the movable cover is passed through and inserted into the recess so that the tip of the sub-operating rod comes into contact with the anvil. An impact-operated pneumatic tool characterized by a protrusion.
JP14500279A 1979-11-08 1979-11-08 impact actuated air tools Expired JPS5935748B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14500279A JPS5935748B2 (en) 1979-11-08 1979-11-08 impact actuated air tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14500279A JPS5935748B2 (en) 1979-11-08 1979-11-08 impact actuated air tools

Publications (2)

Publication Number Publication Date
JPS5669086A JPS5669086A (en) 1981-06-10
JPS5935748B2 true JPS5935748B2 (en) 1984-08-30

Family

ID=15375172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14500279A Expired JPS5935748B2 (en) 1979-11-08 1979-11-08 impact actuated air tools

Country Status (1)

Country Link
JP (1) JPS5935748B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62282876A (en) * 1986-05-29 1987-12-08 ヨコタ工業株式会社 Impact operation air-actuated tool
JP6701950B2 (en) 2016-05-19 2020-05-27 株式会社オートネットワーク技術研究所 Power feeding control device, power feeding control method, and computer program
JP6620674B2 (en) 2016-05-26 2019-12-18 株式会社オートネットワーク技術研究所 Power supply control device, power supply control method, and computer program

Also Published As

Publication number Publication date
JPS5669086A (en) 1981-06-10

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