JPS6344780U - - Google Patents
Info
- Publication number
- JPS6344780U JPS6344780U JP13971686U JP13971686U JPS6344780U JP S6344780 U JPS6344780 U JP S6344780U JP 13971686 U JP13971686 U JP 13971686U JP 13971686 U JP13971686 U JP 13971686U JP S6344780 U JPS6344780 U JP S6344780U
- Authority
- JP
- Japan
- Prior art keywords
- electric screwdriver
- rotates
- soft start
- turned
- rotated
- 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
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Electric Motors In General (AREA)
Description
第１図は本考案のソフトスタート式電動ドライ
バの回転速度特性を示す特性図、第２図は、本考
案のソフトスタート式電動ドライバの電気回路図
、第３図ａ〜ｆは上記第２図に示すソフトスター
ト式電動ドライバの電気回路のタイムチヤート、
第４図は上記第２図に示す電気回路図で用いられ
ているＤＣモータの回転制御用のＰＷＭ制御の図
、第５図は従来の電動ドライバの回転速度特性を
示す図である。
２，１２，１６……可変抵抗器、４……電解コ
ンデンサ、６，９，１４，１８……トランジスタ
、１１，１５，１９……抵抗、２２……電源用Ｉ
Ｃ、３２……正逆制御部、３３……直流モータ。
Fig. 1 is a characteristic diagram showing the rotational speed characteristics of the soft start type electric screwdriver of the present invention, Fig. 2 is an electric circuit diagram of the soft start type electric screwdriver of the present invention, and Figs. 3 a to f are the above-mentioned figures 2. The time chart of the electric circuit of the soft-start electric screwdriver shown in
FIG. 4 is a diagram of PWM control for controlling the rotation of the DC motor used in the electric circuit diagram shown in FIG. 2, and FIG. 5 is a diagram showing the rotation speed characteristics of a conventional electric screwdriver. 2, 12, 16... Variable resistor, 4... Electrolytic capacitor, 6, 9, 14, 18... Transistor, 11, 15, 19... Resistor, 22... Power supply I
C, 32... Forward/reverse control section, 33... DC motor.
Claims (1)
部に挿入し、スイツチをオンにすると上記ビツト
の回転により上記被回転体が回転駆動されるよう
にした電動ドライバにおいて、 スイツチの投入直後から所定時間だけは一定速
度で低速回転し、この時間の経過後は一定速度で
高速回転するようにしたことを特徴とするソフト
スタート式電動ドライバ。 (2) 上記所定の時間は任意の長さに可変するこ
とができるようにしたことを特徴とする実用新案
請求の範囲第１項記載のソフトスタート式電動ド
ライバ。[Scope of Claim for Utility Model Registration] (1) An electric drive in which the bit of an electric screwdriver is inserted in advance into the head of the object to be rotated, and when the switch is turned on, the rotation of the bit rotates the object to be rotated. A soft start type electric screwdriver characterized in that the driver rotates at a low speed at a constant speed for a predetermined period of time immediately after the switch is turned on, and after this time has elapsed, it rotates at a high speed at a constant speed. (2) The soft start type electric screwdriver according to claim 1 of the utility model, characterized in that the predetermined time can be varied to any length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13971686U JPS6344780U (en) | 1986-09-11 | 1986-09-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13971686U JPS6344780U (en) | 1986-09-11 | 1986-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6344780U true JPS6344780U (en) | 1988-03-25 |
Family
ID=31045880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13971686U Pending JPS6344780U (en) | 1986-09-11 | 1986-09-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6344780U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131171A (en) * | 1983-12-20 | 1985-07-12 | 日本電気精器株式会社 | Electric driver |
-
1986
- 1986-09-11 JP JP13971686U patent/JPS6344780U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131171A (en) * | 1983-12-20 | 1985-07-12 | 日本電気精器株式会社 | Electric driver |
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