JPH03100075U - - Google Patents
Info
- Publication number
- JPH03100075U JPH03100075U JP565690U JP565690U JPH03100075U JP H03100075 U JPH03100075 U JP H03100075U JP 565690 U JP565690 U JP 565690U JP 565690 U JP565690 U JP 565690U JP H03100075 U JPH03100075 U JP H03100075U
- Authority
- JP
- Japan
- Prior art keywords
- electric screwdriver
- circuit
- counting
- counting circuit
- counter
- 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 6
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
図面において、第１図は電動ドライバにおける
主体の振動特性を示す線図、第２図および第３図
はそれぞれ一実施例における本考案のカウンタ付
電動ドライバの外観斜面図および振動センサ部の
横断面略図、また第４図は要部の電気的回路のブ
ロツク図である。
４……表示部、７……報知手段、８……振動セ
ンサ、９……回転方向切換スイツチ、１４……計
数回路、１５……電流検出センサ、１６……アン
ド回路、１７……設定部、１８……比較回路。
In the drawings, FIG. 1 is a diagram showing the vibration characteristics of the main body in an electric screwdriver, and FIGS. 2 and 3 are an external oblique view and a cross section of a vibration sensor part of an electric screwdriver with a counter of the present invention in one embodiment, respectively. A schematic diagram, and FIG. 4 is a block diagram of the main electrical circuit. 4...Display section, 7...Notification means, 8...Vibration sensor, 9...Rotation direction changeover switch, 14...Counting circuit, 15...Current detection sensor, 16...AND circuit, 17...Setting section , 18...comparison circuit.
Claims (1)
と、振動センサ８からの検出信号を計数する計数
回路１４と、計数回路１４による計数結果を表示
する表示部４とを備えたことを特徴とするカウン
タ付電動ドライバ。 ２ 振動センサ８からの検出信号と、ドライバ駆
動用のモータの電流を検出するモータ電流検出セ
ンサ１５からの検出信号とが同時に出力された場
合に限り計数回路１４に入力するようにアンド回
路１６を設けてなる請求項１記載のカウンタ付電
動ドライバ。 ３ 駆動用モータの回転方向を回転方向切換スイ
ツチ９により判別して計数回路１４において入力
信号を加算または減算の区別のもとに処理するよ
うにしてなる請求項１記載のカウンタ付電動ドラ
イバ。 ４ ねじの締め付け目標数を予め設定するための
設定部１７を設けると共に、この設定部１７の設
定値と計数回路１４における計数結果との比較回
路１８を設け、比較回路１８における両入力信号
の一致により作動する報知手段７を設けてなる請
求項１記載のカウンタ付電動ドライバ。[Claims for Utility Model Registration] 1. Vibration sensor 8 that detects vibration in the circumferential direction of rotation.
An electric screwdriver with a counter, comprising: a counting circuit 14 that counts detection signals from the vibration sensor 8; and a display section 4 that displays the counting results of the counting circuit 14. 2. The AND circuit 16 is configured to input the detection signal to the counting circuit 14 only when the detection signal from the vibration sensor 8 and the detection signal from the motor current detection sensor 15 that detects the current of the motor for driving the driver are output simultaneously. An electric screwdriver with a counter according to claim 1, further comprising: an electric screwdriver with a counter; 3. The electric screwdriver with a counter according to claim 1, wherein the rotational direction of the drive motor is determined by a rotational direction changeover switch 9, and the input signal is processed in the counting circuit 14 based on addition or subtraction. 4. A setting section 17 is provided for presetting the target number of screws to be tightened, and a comparison circuit 18 is provided for comparing the setting value of this setting section 17 and the counting result in the counting circuit 14, and the comparison circuit 18 checks whether both input signals match. 2. The electric screwdriver with a counter according to claim 1, further comprising a notification means 7 activated by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565690U JPH03100075U (en) | 1990-01-26 | 1990-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565690U JPH03100075U (en) | 1990-01-26 | 1990-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100075U true JPH03100075U (en) | 1991-10-18 |
Family
ID=31509357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP565690U Pending JPH03100075U (en) | 1990-01-26 | 1990-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009169479A (en) * | 2008-01-10 | 2009-07-30 | Pfu Ltd | Sheet, keyboard, electronic equipment |
| JP2009291888A (en) * | 2008-06-05 | 2009-12-17 | Nec Infrontia Corp | Screw counter device |
-
1990
- 1990-01-26 JP JP565690U patent/JPH03100075U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009169479A (en) * | 2008-01-10 | 2009-07-30 | Pfu Ltd | Sheet, keyboard, electronic equipment |
| JP2009291888A (en) * | 2008-06-05 | 2009-12-17 | Nec Infrontia Corp | Screw counter device |
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