JPS63176075U - - Google Patents
Info
- Publication number
- JPS63176075U JPS63176075U JP5808488U JP5808488U JPS63176075U JP S63176075 U JPS63176075 U JP S63176075U JP 5808488 U JP5808488 U JP 5808488U JP 5808488 U JP5808488 U JP 5808488U JP S63176075 U JPS63176075 U JP S63176075U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- tightening
- output
- motor
- determination circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
第１図はネジを木材にねじ込んでいつた場合の
モータ駆動電流の変化を示した電流波形図、第２
図は本考案の一実施例を示した電気回路図、第３
図は動作説明のための波形図、第４図は検出回路
の他の例を示した電気回路図、第５図はＡＣモー
タを用いたときの回路構成の一部を示した電気回
路図である。
１…モータ、３…停止回路、４，５，７…抵抗
、６，８…コンデンサ、９…検出回路、１０…判
定回路、１９…時定数回路、２０…微分回路、２
３…比較回路、２４…モータ、２７…停止回路、
２８…絶対値増幅回路、２９，３１…抵抗、３０
，３２…コンデンサ。
Figure 1 is a current waveform diagram showing the change in motor drive current when a screw is screwed into wood.
The figure is an electrical circuit diagram showing one embodiment of the present invention.
The figure is a waveform diagram for explaining the operation, Figure 4 is an electric circuit diagram showing another example of the detection circuit, and Figure 5 is an electric circuit diagram showing part of the circuit configuration when using an AC motor. be. DESCRIPTION OF SYMBOLS 1... Motor, 3... Stop circuit, 4, 5, 7... Resistor, 6, 8... Capacitor, 9... Detection circuit, 10... Judgment circuit, 19... Time constant circuit, 20... Differential circuit, 2
3... Comparison circuit, 24... Motor, 27... Stop circuit,
28... Absolute value amplification circuit, 29, 31... Resistor, 30
, 32... Capacitor.
Claims (1)
ときに急激に締付けトルクが増大する木ネジを締
め付ける電動ドライバにおいて、ネジ締付け部を
回転駆動するモータと、このモータにかかる負荷
変動を検出する検出回路と、この検出回路の出力
を受け上記負荷変動が設定レベルに達したとき出
力を生じる判定回路と、締付け開始直後における
上記判定回路からの出力発生を禁止する禁止回路
と、上記判定回路の出力によつて上記モータを停
止せしめる制御回路とからなる電動ドライバ。 An electric screwdriver for tightening a wood screw whose tightening torque increases rapidly immediately after starting tightening and when tightened to the seat surface, includes a motor that rotationally drives a screw tightening part, a detection circuit that detects load fluctuations applied to this motor, A determination circuit that receives the output of this detection circuit and generates an output when the load fluctuation reaches a set level, a prohibition circuit that prohibits the generation of output from the determination circuit immediately after the start of tightening, and an output of the determination circuit. An electric driver comprising a control circuit for stopping the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5808488U JPS63176075U (en) | 1988-04-28 | 1988-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5808488U JPS63176075U (en) | 1988-04-28 | 1988-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63176075U true JPS63176075U (en) | 1988-11-15 |
Family
ID=30888365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5808488U Pending JPS63176075U (en) | 1988-04-28 | 1988-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63176075U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10562116B2 (en) | 2016-02-03 | 2020-02-18 | Milwaukee Electric Tool Corporation | System and methods for configuring a reciprocating saw |
| USD887806S1 (en) | 2018-04-03 | 2020-06-23 | Milwaukee Electric Tool Corporation | Jigsaw |
| US10835972B2 (en) | 2018-03-16 | 2020-11-17 | Milwaukee Electric Tool Corporation | Blade clamp for power tool |
| US11014176B2 (en) | 2018-04-03 | 2021-05-25 | Milwaukee Electric Tool Corporation | Jigsaw |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927999A (en) * | 1972-07-10 | 1974-03-12 | ||
| JPS5444159A (en) * | 1977-09-13 | 1979-04-07 | Kuraray Co Ltd | Synthetic lubricating oil |
-
1988
- 1988-04-28 JP JP5808488U patent/JPS63176075U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927999A (en) * | 1972-07-10 | 1974-03-12 | ||
| JPS5444159A (en) * | 1977-09-13 | 1979-04-07 | Kuraray Co Ltd | Synthetic lubricating oil |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10562116B2 (en) | 2016-02-03 | 2020-02-18 | Milwaukee Electric Tool Corporation | System and methods for configuring a reciprocating saw |
| US11433466B2 (en) | 2016-02-03 | 2022-09-06 | Milwaukee Electric Tool Corporation | System and methods for configuring a reciprocating saw |
| US10835972B2 (en) | 2018-03-16 | 2020-11-17 | Milwaukee Electric Tool Corporation | Blade clamp for power tool |
| USD887806S1 (en) | 2018-04-03 | 2020-06-23 | Milwaukee Electric Tool Corporation | Jigsaw |
| US11014176B2 (en) | 2018-04-03 | 2021-05-25 | Milwaukee Electric Tool Corporation | Jigsaw |
| US11813682B2 (en) | 2018-04-03 | 2023-11-14 | Milwaukee Electric Tool Corporation | Jigsaw |
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