JPS59219176A - Electromotive driver - Google Patents
Electromotive driverInfo
- Publication number
- JPS59219176A JPS59219176A JP58091114A JP9111483A JPS59219176A JP S59219176 A JPS59219176 A JP S59219176A JP 58091114 A JP58091114 A JP 58091114A JP 9111483 A JP9111483 A JP 9111483A JP S59219176 A JPS59219176 A JP S59219176A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- torque
- electric screwdriver
- circuit
- current
- 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
Landscapes
- Control Of Electric Motors In General (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は工場等で使用される電動ドライバーに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric screwdriver used in factories and the like.
従来例の構成とその問題点
従来の電動ドライバーは第１図にその具体構成を示すよ
うに、ボデー５の中に、モーター＼、が置かれ、そのモ
ーター１の軸は減速機２に結ばれ、その回転数は１／６
から１／／２゜程度に減速される。The structure of the conventional example and its problems As the specific structure of the conventional electric screwdriver is shown in FIG. , its rotation speed is 1/6
The speed is reduced to about 1/2 degree.
その減速さノ［た出力は、使用者が任意にトルクを設定
出来る用変トルク・クラッチ３に結かれ、可変トルク・
クラッチは、ネジ締めに使われる使用者が任意に交換選
択出来るビット６と結合さ租る。The deceleration output is connected to the variable torque clutch 3, which allows the user to set the torque as desired.
The clutch is coupled with a bit 6 that is used for tightening screws and can be replaced at will by the user.
又モーター１は電源ボックス４にコードで結はれこの電
源ボックス４の内部には商用電源１００ボルトから直流
に変換する回路と、モーターの′１Ｌ流値を検知し、あ
る定められた電流値以上が流ねると、モーターへの電流
の供給を切断する回路が、納められている。The motor 1 is connected to the power supply box 4 with a cord, and inside the power supply box 4 there is a circuit that converts the commercial power supply from 100 volts to DC, and a circuit that detects the motor's 1L current value and detects the current value when it exceeds a certain specified current value. It contains a circuit that cuts off the supply of current to the motor when the current flows.
従来ｄ２このような構成になっているため、ネジを締め
る場合のトルクは第２図に示すように、あらかじめ設定
され／こトルクＴ１ にモーターが到達したとき、モー
ターの電源が切断されるか、又はメカニカルｉ’ｉＪ変
トルタ・クラッチ３が切断されるので、ボデー５をＪ）
「すでいる手に太き′／ｌ？７ヨノクを生じる。Conventionally, d2 has such a configuration, so the torque for tightening the screw is set in advance as shown in Figure 2, and when the motor reaches this torque T1, the power to the motor is cut off or Or, since the mechanical i'iJ variable torque clutch 3 is disconnected, the body 5 is
``It produces a thick '/l?7 weight on the existing hand.
発明の目的
本発明は、上記従来の欠点を解消するものであり、摩耗
部分をなくし、信頼性の向上と寿命の長時間化をｆｄ−
かっ／こものである。Purpose of the Invention The present invention eliminates the above-mentioned conventional drawbacks, eliminates wear parts, improves reliability, and extends lifespan.
It's a small thing.
発明の４１°４成
不発ψ］は、電動機を用いた電動ドライバーと、その電
動機に流７Ｌる電流が、ある定めら７しだ値に到達し２
／こことを検知する回路と、電動機に流れる電流がある
あらかじめ定められた値に到達すると、今迄流′Ｉ］て
い／ζ電流が、今度は除々に減少してゆき、約０．２秒
から２秒くらいの間に０となる回路とからなり、ネジ締
めのトルクを正確にコントロールしながら、ネジ締めが
終了した時、ドライバーを保持している手にショックを
生じないようにしだもので、正確なネジ締めと、作業者
の手に生じるンヨックをなくし、腺症炎等を生じないよ
うにし／こものである。The invention's 41°4 success/failure ψ] is when an electric screwdriver using an electric motor and a current flowing through the motor reach a certain predetermined value.
/When the current flowing through the motor reaches a predetermined value, the current flowing through the motor will gradually decrease, and the current will gradually decrease for about 0.2 seconds. It consists of a circuit that goes from 0 to 0 within about 2 seconds, and is designed to accurately control the screw tightening torque while preventing the hand holding the screwdriver from receiving a shock when the screw tightening is completed. This method enables accurate screw tightening, eliminates knots in the hands of workers, and prevents inflammation of the glands.
実施例の説明
以下に本発明の一実施例を第３〜４図にもとづいて説明
する。図において１１はモーター、１３は電動ドライバ
ーのボデー、１４は使用者が自由に交換出来るドライバ
ービットで１２の減速機と結合されている。本発明の場
合は今迄の例のようにトルクを可変するクラッチは有し
ていない。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In the figure, 11 is a motor, 13 is the body of an electric screwdriver, and 14 is a screwdriver bit that can be freely replaced by the user, and is connected to 12 speed reducers. In the case of the present invention, unlike the previous examples, there is no clutch that varies torque.
７は電源ボックスでモーター１１にある′１Ｌ圧・電流
を７（／ζ単に供給するたけでなくで、可変Ｖ（抗のツ
マミ８が伺けられており、こ７１により−１−ター１１
に流れる電流値がある一定の値、すなわちモーター１１
の出力トルクがある定められた一定の値に当離すると、
その点で従来例のように、モーター１１への供給電源を
ただ単に切断するのでなく、その点より約０．２秒から
約２秒の間かけて、除々に電圧を減少さすことによって
電動ドライバーの本体１３を握っている手にかかるショ
ックをなくすようにしたもので、その関係を第４図に示
し／こものである。7 is a power supply box that not only supplies the 1L voltage and current to the motor 11, but also has a variable V (resistance) knob 8.
The current value flowing through the motor 11 is a certain constant value, i.e.
When the output torque of deviates from a certain fixed value,
In this respect, instead of simply cutting off the power supply to the motor 11 as in the conventional example, the electric driver The device is designed to eliminate the shock that is applied to the hand holding the main body 13, and the relationship between them is shown in Figure 4.
発明の効果
このように本発明は電動ドライバーのトルク変動の大き
な原因となっているメカニカルクラッチをなくすことが
出来、ネジ締め作業のトルク４′：’１度を向上さすこ
とがＪＪ３来、又作業者の電動ドライバーを握る手に力
えるショックを少くすることが出来るので鍵症炎等に作
業者がか＼ることを防止することか出来る。Effects of the Invention As described above, the present invention can eliminate the mechanical clutch, which is a major cause of torque fluctuations in electric screwdrivers, and improve the torque of screw tightening work by 4':'1 since JJ3. Since it is possible to reduce the shock exerted on the operator's hand holding the electric screwdriver, it is possible to prevent the operator from getting burnt due to lock irritation, etc.
第１図は従来の電動ドライバーの正面図、第２図は従来
の電動ドライバーのネジ締イづトルクと時間との関係を
示した図、第３図は本発明の一実施例における電動ドラ
イバーの正面図、第４図は同電動ドライバーのネジ締付
トルクと時間との関係を示しだ図である。
１１・・・・−モーター、１２・・・・・・減速機、１
３・・・・・・電動ドライバ一本体、１４・・・・・ビ
ット、７・・・・・−電源部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
ｑ
第２図
第３因
第４図
ＡFig. 1 is a front view of a conventional electric screwdriver, Fig. 2 is a diagram showing the relationship between screw tightening torque and time of a conventional electric screwdriver, and Fig. 3 is a diagram of an electric screwdriver according to an embodiment of the present invention. The front view and FIG. 4 are diagrams showing the relationship between the screw tightening torque and time of the same electric screwdriver. 11...-Motor, 12...Reduction gear, 1
3...Electric screwdriver body, 14...Bit, 7...-Power supply section. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure q Figure 2 Cause 3 Figure 4 A
Claims (1)
電流があらかじめ定められたある値に到達したことを検
知する回路と、電動機に流れる電流があらかじめ定めら
れたある値に到達すると、今迄流れていた電流が今度は
除々に減少してゆき約０．２秒から２秒くらいの間にＯ
となる回路と〃・らなる電動ドライバー。An electric screwdriver with an electric motor, a circuit that detects when the current flowing through the motor reaches a certain predetermined value, and a circuit that detects when the current flowing through the motor reaches a certain predetermined value. The current gradually decreases and reaches O in about 0.2 seconds to 2 seconds.
An electric screwdriver with a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091114A JPS59219176A (en) | 1983-05-23 | 1983-05-23 | Electromotive driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091114A JPS59219176A (en) | 1983-05-23 | 1983-05-23 | Electromotive driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59219176A true JPS59219176A (en) | 1984-12-10 |
Family
ID=14017485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58091114A Pending JPS59219176A (en) | 1983-05-23 | 1983-05-23 | Electromotive driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59219176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006121085A1 (en) * | 2005-05-12 | 2006-11-16 | Estic Corporation | Control method and device for impact screw tightening device |
| JP2014508655A (en) * | 2011-03-18 | 2014-04-10 | アトラス・コプコ・インダストリアル・テクニーク・アクチボラグ | Tightening method for threaded joints with hand-held power tools |
-
1983
- 1983-05-23 JP JP58091114A patent/JPS59219176A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006121085A1 (en) * | 2005-05-12 | 2006-11-16 | Estic Corporation | Control method and device for impact screw tightening device |
| GB2441670A (en) * | 2005-05-12 | 2008-03-12 | Estic Corp | Control method and device for impact screw tightening device |
| US7770658B2 (en) | 2005-05-12 | 2010-08-10 | Estic Corporation | Control method and control unit for impact type screw fastening device |
| JP2014508655A (en) * | 2011-03-18 | 2014-04-10 | アトラス・コプコ・インダストリアル・テクニーク・アクチボラグ | Tightening method for threaded joints with hand-held power tools |
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