JPS6023952B2 - Air passage control device for rotary tools - Google Patents
Air passage control device for rotary toolsInfo
- Publication number
- JPS6023952B2 JPS6023952B2 JP1499281A JP1499281A JPS6023952B2 JP S6023952 B2 JPS6023952 B2 JP S6023952B2 JP 1499281 A JP1499281 A JP 1499281A JP 1499281 A JP1499281 A JP 1499281A JP S6023952 B2 JPS6023952 B2 JP S6023952B2
- Authority
- JP
- Japan
- Prior art keywords
- air passage
- air
- motor
- spool
- valve
- 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
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
【発明の詳細な説明】
本発明はェァモータを駆動源とするインパクトレンチそ
の他の回転式工具におけるェア通路の制御装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for air passages in impact wrenches and other rotary tools using an air motor as a drive source.
従来この種装置として例えば第１図乃至第３図示のよう
に内部にェアモータａを有する工具本体ｂから下方にの
びるグリップ部ｃ内に前面の引金ｄに連動する弁ｅを備
えて、該弁ｅにより該モ−タａに逸るェア通路ｆを制御
するようにした式のものは知られるが、この場合談弁ｅ
は全図示のように単に該通路ｆを開閉制御する型式から
成るを一般としたもので、か）るものでは該モータａの
正転と逆転とに備えて該通路ｆを切換えるべくその下流
側に別個の弁ｇを切換しバｈその他で操作自在に設けろ
を要し、かくて操作が面倒となるを免れない。Conventionally, as shown in FIGS. 1 to 3, this type of device is equipped with a valve e interlocked with a trigger d on the front in a grip part c extending downward from a tool body b having an air motor a therein. A type is known in which the air passage f that deviates to the motor a is controlled by e, but in this case, the communication e
As shown in the figures, the general type is a type that simply controls the opening/closing of the passage f, and in such a type, a downstream side is used to switch the passage f in preparation for forward and reverse rotation of the motor a. Therefore, it is necessary to provide a separate valve g for switching and to be able to operate the valve h or the like, which inevitably makes the operation troublesome.
本発明はか）る不都合のない装置を得ることをその目的
としたもので、内部にェアモータを有する工具本体から
下方にのびるグリップ部内に、前面の引金に連動する弁
を備えて該弁より前記ヱアモータに蓮るェァ通路を制御
するようにしたものにおいて、前記弁を前記引金の１個
に連動して上下動するスプールと、該スプールを内装す
るスリーブとからなる切換弁に構成し、該切換弁のスリ
ーブ外周にそれぞれ透孔を介してスリーブ内と運なる給
気室と排気室とモータ正転用のヱア通路とモータ逆転用
のェァ通路とを配設すると共に、該功襖弁のスプールに
その下動で前記排気室及び正転用のェア通路に蓮なり且
その上動で前記給気室及び正転用のェア通路に連なる上
側の環状凹港と、その下動で前記給気室及び逆転用のェ
ア通路に連なり且つその上動で前記排気室及び逆転用の
ヱァ通路に連なる下側の環状凹溝とを設けたことを特徴
とする。The object of the present invention is to obtain a device that does not have such inconveniences, and is provided with a valve in a grip portion extending downward from a tool body having an air motor therein, which is linked to a trigger on the front surface. In the device for controlling the air passage connected to the motor, the valve is configured as a switching valve consisting of a spool that moves up and down in conjunction with one of the triggers, and a sleeve that houses the spool. An air supply chamber, an exhaust chamber, an air passage for forward rotation of the motor, and an air passage for reverse rotation of the motor are arranged on the outer periphery of the sleeve of the switching valve, and are connected to the inside of the sleeve through through holes, respectively. The spool of the valve has an upper annular concave port that connects to the exhaust chamber and the air passage for forward rotation by its downward movement and connects to the air supply chamber and the air passage for forward rotation by its upward movement, and The present invention is characterized in that a lower annular groove is provided which is connected to the air supply chamber and the air passage for reversal, and is connected upwardly to the exhaust chamber and the air passage for reversal.
本発明実施の１例を別紙図面に付説明する。An example of implementing the present invention will be explained with reference to the attached drawings.
第４図乃至第１２図はその１例を示すもので、１は工具
本体、２はその内部のェアモータを示し、該本体１から
下方にのびるグリップ部３内に前面の引金４に運動する
弁５を備えて、該弁５により該モータ２に蓮るェア通路
が制御されるようにした。以上は従来のものと特に異ら
ないが、本発明によれば、該弁５を該引金４に運動して
上下動するスプール６と、その外周のスリーブ７とから
成る切換弁に構成した。Figures 4 to 12 show one example of this. 1 is a tool body, 2 is an internal air motor, and a trigger 4 on the front is moved into a grip part 3 extending downward from the body 1. A valve 5 is provided so that the air passage leading to the motor 2 is controlled by the valve 5. Although the above is not particularly different from the conventional one, according to the present invention, the valve 5 is configured as a switching valve consisting of a spool 6 that moves up and down in response to the trigger 4, and a sleeve 7 on the outer periphery of the spool 6. .
更に詳述すれば、該スプール６は第４図示の中立位置か
ら第７図示の上動位置と、第１０図示の下動位置とに切
襖自在とすると共に、その前方位置に第５図に明示する
ように外部のェア源に薫る給気室８と外気に蓮る排気室
９とを左右１対に備え、更にその後方位層に第６図に明
示するように正転用と逆転用との各ェア通路１０，１１
を左右１対に備え、更に該スプール６には上側と下側と
に各環状の凹溝１２ａ，１２ｂを備え、更に該スリーブ
７には該上側の凹溝１２ａと脇勤すべき前方の上下１対
の透孔１３，１４と後方の１個の透孔１５とを備えると
共に該下側の凹溝１２ｂと脇勤すべき側方の上下１対の
透孔１６，１７と後方の１個の透孔１８とを備える。More specifically, the spool 6 is movable from a neutral position shown in FIG. 4 to an upward movement position shown in FIG. 7 and a downward movement position shown in FIG. As shown in FIG. 6, there is a pair of left and right air supply chambers 8 that are fragrant to an external air source and exhaust chambers 9 that are vented to the outside air. Each air passage 10, 11
Further, the spool 6 is provided with annular grooves 12a and 12b on the upper and lower sides, and the sleeve 7 is provided with annular grooves 12a and 12b on the upper side and upper and lower front grooves 12a and 12b on the upper and lower sides, respectively. It is equipped with a pair of through holes 13, 14 and one rear through hole 15, as well as a groove 12b on the lower side, a pair of upper and lower through holes 16, 17 on the side to be used aside, and one rear hole. A through hole 18 is provided.
尚該スプール６は上下のばね１９，１９で常時は中立位
置に存するようにした。The spool 6 is always kept in a neutral position by means of upper and lower springs 19, 19.
その作動を説明するに、常時はスプール６は第４図示の
中立位置に存し、この状態では各ェア通路１０，１１は
給気室８及び排気室９との運通がなく、かくてモータ２
は停止に存する。To explain its operation, the spool 6 is normally in the neutral position shown in FIG. 2
consists in stopping.
次で引金４を後方に引いてスプール６を下動すれば、第
７図示のように上側の凹溝１２ａは透孔１４，１５を互
に蓮適すると共に下側の凹溝１２ｂは透孔ＩＴ，１８を
互に蓮通し、かくて第８図及び第９図示のように正転用
のェア通路１０は給気室８と、逆転用のヱア通路１１は
排気室９とに蓮り、ェアはこれを介して流れてモータ２
に正転が与えられる。Next, when the trigger 4 is pulled backward and the spool 6 is moved downward, the upper groove 12a will fit the through holes 14 and 15 to each other, and the lower groove 12b will fit through the holes 14 and 15, as shown in FIG. IT, 18 are connected to each other, and thus, as shown in FIGS. 8 and 9, the air passage 10 for forward rotation connects to the air supply chamber 8, and the air passage 11 for reverse rotation connects to the exhaust chamber 9. Air flows through this to motor 2
is given normal rotation.
次で引金４を前方に押してスプ−ル６を上動すれば、第
１０図示のように上側の凹溝１２ａは透孔１３，１５を
連通すると共に下側の凹溝１２ｂは透孔１６，１８を蓮
通し、かくて第１１図及び第１２図示のように正転用の
ェア通路１川ま排気室９と、逆転用のェア通路１１は給
気室８とに蓮り、ェアはこれを介して流れてモータ２に
逆転が与えられる。このように、本発明によるときは回
転工具本体１のェアモータ２に連なるェア通路を制御す
る弁５は、引金４の１個に連動して上下動するスプ−ル
６と該スプール６を内装するスリーブ７とからなる切襖
弁に構成し、そのスリーブ７外周にそれぞれ透孔を介し
てスリーブ内と連なる給気室８と排気室９とモータ正転
用のェア通路１０とモー夕逆転用のヱア通路１１とを配
設すると共に、そのスプール６には、その下動で排気室
９及び正転用のェア通路１０に連なり且つその上動で給
気室８及び正転用のェア通路１０‘こ連なる上側の環状
凹溝１２ａとその下動で給気室８及び逆転用のェア通路
１１に蓮なり且その上動で排気室９及び逆転用のェア通
路１１に連なる下側の環状凹溝１２ｂとを設けたもので
あるからモータに連なるヱア通路は単に１個の引金を操
作するのみで正転用と逆転用とに切換えられてその切換
操作が簡単になると共にその構成は上下動するスプール
とこれを内層するスリーブとにより形成されるため作動
部の構成が簡単となって故障することなく長期に捗って
有効に作動する等の効果を有する。Next, when the trigger 4 is pushed forward to move the spool 6 upward, the upper groove 12a communicates with the through holes 13 and 15, and the lower groove 12b communicates with the through holes 16, as shown in FIG. , 18 are connected to each other, and as shown in FIG. A flows through this to provide the motor 2 with reverse rotation. In this way, according to the present invention, the valve 5 that controls the air passage connected to the air motor 2 of the rotary tool body 1 controls the spool 6 that moves up and down in conjunction with one of the triggers 4. It is configured as a flap valve consisting of a sleeve 7 installed inside, an air supply chamber 8 and an exhaust chamber 9 connected to the inside of the sleeve through through holes on the outer periphery of the sleeve 7, an air passage 10 for forward rotation of the motor, and an air passage 10 for forward rotation of the motor, and an air passage 10 for forward rotation of the motor and an air passage 10 for forward rotation of the motor. In addition, the spool 6 is connected to the exhaust chamber 9 and the air passage 10 for forward rotation in its downward movement, and connects to the air supply chamber 8 and the air passage for normal rotation in its upward movement. The upper annular groove 12a that connects to the passage 10' and its downward movement connect to the air supply chamber 8 and the air passage 11 for reverse rotation, and the lower movement that connects to the exhaust chamber 9 and the air passage 11 for reverse rotation. Since the annular concave groove 12b is provided on the side, the air passage connected to the motor can be switched between forward rotation and reverse rotation by simply operating one trigger, making the switching operation simple and easy to use. Since the structure is formed by a spool that moves up and down and a sleeve that covers the spool, the structure of the operating part is simple and has the advantage of being able to operate effectively over a long period of time without failure.
第１図は従来例の一部を銭除した側面図、第２図はその
正面図、第３図は裁断した正面図、第４図は本発明装置
の１例の一部を歓除した側面図、第５図及び第６図はそ
のＶ−Ｖ線及びＷ−の糠裁断面図、第７図はその正転作
動時の一部の裁断側面図、第８図及び第９図はその皿一
皿線及びＫ−Ｘ線裁断面図、第１０図は逆転作動時の一
部の裁断側面図、第１１図及び第１２図はその幻−幻線
及び刈一柳線裁断面図である。
１・・・・・・工具本体、２・・・・・・ェアモータ、
３・・・・・・グリップ部、４……引金、５……弁、６
……スプ−ル、７・・・・・・スリーブ、１０，１１・
・・・・・ェア通路。
第１図第２図
第３図
第４図
第５図
第６図
第７図
第８図
第９図
第１１図
第１２図
第１０図Fig. 1 is a side view of a conventional example with part removed, Fig. 2 is a front view thereof, Fig. 3 is a front view cut away, and Fig. 4 is a part of an example of the device of the present invention removed. The side view, FIGS. 5 and 6 are cross-sectional views taken along the V-V line and W-, FIG. 7 is a partially cut-away side view during forward rotation, and FIGS. 8 and 9 are Fig. 10 is a cutaway side view of a portion during reverse operation, and Figs. 11 and 12 are cutaway views of the phantom-phantom line and Kariichiyanagi line. be. 1... Tool body, 2... Air motor,
3...Grip part, 4...Trigger, 5...Valve, 6
... Spool, 7... Sleeve, 10, 11.
...Air passage. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 11 Figure 12 Figure 10
Claims (1)
るグリツプ部内に、前面の引金に連動する弁を備えて該
弁より前記エアモータに連るエア通路を制御するように
したものにおいて、前記弁を前記引金の１個に連動して
上下動するスプールと、該スプールを内装するスリーブ
とからなる切換弁に構成し、該切換弁のスリーブ外周に
それぞれ透孔を介してスリーブ内と連なる給気室と排気
室とモータ正転用のエア通路とモータ逆転用のエア通路
とを配設すると共に、該切換弁のスプールにその下動で
前記排気室及び正転用のエア通路に連なり且その上動で
前記給気室及び正転用のエア通路に連なる上側の環状凹
溝と、その下動で前記給気室及び逆転用のエア通路に連
なり且つその上動で前記排気室及び逆転用のエア通路に
連なる下側の環状凹溝とを設けたことを特徴とする回転
式工具におけるエア通路の制御装置。1. A grip part extending downward from a tool body having an air motor inside thereof is provided with a valve that is linked to a trigger on the front surface, and the air passage leading to the air motor is controlled by the valve. The switching valve is composed of a spool that moves up and down in conjunction with one of the triggers, and a sleeve that houses the spool, and an air supply chamber that communicates with the inside of the sleeve through a through hole on the outer periphery of the sleeve of the switching valve. An exhaust chamber, an air passage for forward rotation of the motor, and an air passage for reverse rotation of the motor are arranged, and the spool of the switching valve is connected to the exhaust chamber and the air passage for forward rotation by its downward movement, and by its upward movement. an annular groove on the upper side connected to the air supply chamber and the air passage for forward rotation, and a downward movement thereof to connect to the air supply chamber and the air passage for reverse rotation, and an upward movement thereof to the exhaust chamber and the air passage for reverse rotation; A control device for an air passage in a rotary tool, characterized in that a continuous lower annular groove is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1499281A JPS6023952B2 (en) | 1981-02-05 | 1981-02-05 | Air passage control device for rotary tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1499281A JPS6023952B2 (en) | 1981-02-05 | 1981-02-05 | Air passage control device for rotary tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57132975A JPS57132975A (en) | 1982-08-17 |
| JPS6023952B2 true JPS6023952B2 (en) | 1985-06-10 |
Family
ID=11876430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1499281A Expired JPS6023952B2 (en) | 1981-02-05 | 1981-02-05 | Air passage control device for rotary tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023952B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234867Y2 (en) * | 1986-04-23 | 1990-09-19 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0543137U (en) * | 1991-11-05 | 1993-06-11 | 株式会社ミニカムリサーチ | Connecting device |
-
1981
- 1981-02-05 JP JP1499281A patent/JPS6023952B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234867Y2 (en) * | 1986-04-23 | 1990-09-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57132975A (en) | 1982-08-17 |
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