JPH0487782A - Clutch type tightening tool - Google Patents
Clutch type tightening toolInfo
- Publication number
- JPH0487782A JPH0487782A JP19939590A JP19939590A JPH0487782A JP H0487782 A JPH0487782 A JP H0487782A JP 19939590 A JP19939590 A JP 19939590A JP 19939590 A JP19939590 A JP 19939590A JP H0487782 A JPH0487782 A JP H0487782A
- Authority
- JP
- Japan
- Prior art keywords
- stop signal
- clutch
- actuator
- pressing force
- tightening
- 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
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、クラッチ離脱検出装置を有するクラッチ式締
付工具に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a clutch type tightening tool having a clutch disengagement detection device.
従来技術のクラッチ式締付工具゛においては、クラッチ
の離脱に連動して停止信号発生スイッチを投入し、電動
機を停止させ、離脱後は締付力調整スプリングの押圧力
により再びクラッチを圧着噛合せると同時に該押圧力に
より前記停止信号発生スイッチを遮断するというものが
主流であった。In the conventional clutch-type tightening tool, when the clutch is disengaged, a stop signal generation switch is turned on to stop the electric motor, and after disengagement, the clutch is pressed and engaged again by the pressing force of the tightening force adjustment spring. At the same time, it was mainstream to use the pressing force to shut off the stop signal generation switch.
しかしながら従来技術の場合、停止信号発生スイッチを
投入又は遮断する少なくともどちらか一方はクラッチの
離脱速度又は締付力調整スプリングの押圧力により決定
され、この高速での投入又は遮断がスイッチのチャタリ
ング現象やスイッチ内部の可動片の高速動作による接点
の破損や可動片の破損という不具合を引き起こしていた
。特に締付力調整スプリングの押圧力により投入又は遮
断速度が決定される場合、必要な締付力が大きくなれば
なるほど停止信号発生スイッチの信頼性が低下するとい
う欠点を有していた。However, in the case of the prior art, at least one of turning on or cutting off the stop signal generation switch is determined by the disengagement speed of the clutch or the pressing force of the tightening force adjustment spring, and this high speed turning on or cutting off causes the chattering phenomenon of the switch. The high-speed movement of the movable piece inside the switch caused problems such as damage to the contacts and breakage of the movable piece. In particular, when the closing or closing speed is determined by the pressing force of the clamping force adjustment spring, there is a drawback that the reliability of the stop signal generation switch decreases as the required clamping force increases.
本発明の目的は従来技術の欠点をなくし、停止信号発生
スイッチの信頼性を増し、確実、長寿命なりラッチ式締
付工具を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art, increase the reliability of a stop signal generating switch, and provide a latch type tightening tool that is reliable and has a long life.
本発明はクラッチの離脱に連動して締付力調整スプリン
グの押圧力を解除し、停止信号発生スイッチを投入し、
クラッチ離脱後は締付力調整スプリングの押圧力に比較
すると十分に小さな押圧力の復帰スプリングにより遮断
するよう、クラッチと締付力調整スプリング、停止信号
発生スイッチ及び復帰スプリングの関係を工夫したもの
である説明する。The present invention releases the pressing force of the tightening force adjustment spring in conjunction with the disengagement of the clutch, turns on the stop signal generation switch,
The relationship between the clutch, tightening force adjustment spring, stop signal generation switch, and return spring has been devised so that the clutch is disconnected by a return spring with a sufficiently small pressing force compared to the pressing force of the tightening force adjustment spring. Some explanation.
第１図はクラッチ式締付工具１の要部断面図。FIG. 1 is a sectional view of the main parts of a clutch type tightening tool 1.
第１−ａ図は同展開図である。ファイナルギヤ２と出力
軸３は遊合状態にあり、ファイナルギヤ２の回転はファ
イナルギヤ２の爪４→鋼球５→ポールホルダ６の穴７→
ボールホルダ６と出力軸３のスプライシ部８の経路で伝
達される５電動締付工具１が所定の１ヘルタに達すると
鋼球５はスラストコロヘアリング９とスラストプレート
１０を介して締付力調整スプリング１１を圧縮し、爪、
４を乗り滅えるようＬＪなり出力軸３は回転しなくなる
鋼球５が爪４を乗り越えるとき５スラストプレー ｌ−
１０は爪４の高さだけ変位する。アクチュエータユ２は
スラストプレート１０に設けた貫通穴を摺動自在になっ
ていてクラッチが離脱する時はアクチュエータ１２とス
ラストプレー１−１０が体となって変位し停止信号発生
スイッチ１３が投入さ九、モータコ４の回転が停止し、
ねし締めを完了する。クラッチが戻る時はアクチュエー
タ］２に付けた止め輪１５とハウジング間に設けた復帰
スプリング１６により締付力調整スプリング１１、の抑
圧力に比較すると十分に小さな押圧力で停止信号発生ス
イッチ１３を遮断する。Figure 1-a is a developed view of the same. The final gear 2 and the output shaft 3 are in an idle state, and the rotation of the final gear 2 is as follows: pawl 4 of final gear 2 → steel ball 5 → hole 7 of pole holder 6 →
When the 5 electric tightening tool 1, which is transmitted through the path between the ball holder 6 and the spliced portion 8 of the output shaft 3, reaches a predetermined 1 helter, the steel ball 5 applies a tightening force via the thrust roller ring 9 and the thrust plate 10. Compress the adjustment spring 11, and
When the steel ball 5 overcomes the pawl 4, it becomes LJ and the output shaft 3 stops rotating. 5 Thrust play l-
10 is displaced by the height of the claw 4. The actuator unit 2 is slidable through a through hole provided in the thrust plate 10, and when the clutch is disengaged, the actuator 12 and the thrust plate 1-10 are displaced as a body, and the stop signal generation switch 13 is turned on. , motor taco 4 stops rotating,
Complete the tightening. When the clutch returns, the stop signal generating switch 13 is shut off by a retaining ring 15 attached to the actuator 2 and a return spring 16 provided between the housing with a pressing force that is sufficiently small compared to the suppressing force of the tightening force adjustment spring 11. do.
本発明によれば停止信号発生スイッチの投入ルび遮断が
クラッチの離脱速度や締付力調整スプリングの押圧力の
大きさ無関係に行えるので復帰スプリングの押圧力を停
止信号発生スイッチに見合う適切な値に設定し投入、遮
断速度を低く押さえることができ、かつスラストプレー
トと停止信号発生スイッチの位置を移動することが出来
る。According to the present invention, the stop signal generating switch can be turned on and off regardless of the clutch disengagement speed or the pressing force of the tightening force adjustment spring, so that the pressing force of the return spring can be adjusted to an appropriate value commensurate with the stop signal generating switch. By setting this, the closing and closing speeds can be kept low, and the positions of the thrust plate and stop signal generation switch can be moved.
第１図は、クラッチ式締付工具の要部断面図。
第１−ａ図は同展開図である。図において１−はクラッ
チ式締付工具、１０はスラストプレート、］、１は締付
力調整スプリング、１２はアクチュエータ、１３は停止
信号発生スイッチ、１４はモータ、１５は止め輪、１６
は復帰スプリングであるＩｍ
特許出頴人の名称 日立工機株式会社FIG. 1 is a sectional view of the main parts of a clutch-type tightening tool. Figure 1-a is a developed view of the same. In the figure, 1- is a clutch type tightening tool, 10 is a thrust plate, 1 is a tightening force adjustment spring, 12 is an actuator, 13 is a stop signal generation switch, 14 is a motor, 15 is a retaining ring, 16
is a return spring Im Name of patent issuer Hitachi Koki Co., Ltd.
Claims (1)
噛合して成る噛合いクラッチを有し工具に前記締付力調
整スプリングの押圧力より大きな負荷が作用した時噛合
いクラッチを離脱させクラッチの離脱を検出して作動す
る停止信号発生スイッチを設け該停止信号によりモータ
への電力供給を遮断し締付けを終了する締付工具におい
て、噛合いクラッチと同一変位するスラストプレートに
前記停止信号発生スイッチを投入遮断するアクチュエー
タが摺動自在になる慣通穴を設け、噛合いクラッチが離
脱する時はアクチュエータがスラストプレートと連動し
て停止信号発生スイッチが投入され離脱後はアクチュエ
ータに付けた止め輪とハウジングで抑えた復帰スプリン
グにより再び遮断されることを特徴とするクラッチ式締
付工具。Crimp with a clamping force adjustment spring that allows you to freely adjust the pressing force.
The tool has a dog clutch formed by meshing, and is provided with a stop signal generating switch that disengages the dog clutch when a load greater than the pressing force of the tightening force adjustment spring is applied to the tool and operates upon detecting the disengagement of the clutch. In a tightening tool that terminates tightening by cutting off the power supply to the motor in response to a stop signal, a through-hole is provided in which the actuator that turns on and off the stop signal generation switch can freely slide in the thrust plate that is displaced in the same way as the dog clutch. When the dog clutch disengages, the actuator interlocks with the thrust plate to turn on a stop signal generation switch, and after disengagement, the actuator is shut off again by a retaining ring attached to the actuator and a return spring held by the housing. Clutch type tightening tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19939590A JPH0487782A (en) | 1990-07-27 | 1990-07-27 | Clutch type tightening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19939590A JPH0487782A (en) | 1990-07-27 | 1990-07-27 | Clutch type tightening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0487782A true JPH0487782A (en) | 1992-03-19 |
Family
ID=16407073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19939590A Pending JPH0487782A (en) | 1990-07-27 | 1990-07-27 | Clutch type tightening tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0487782A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312525B1 (en) | 1997-07-11 | 2001-11-06 | Applied Materials, Inc. | Modular architecture for semiconductor wafer fabrication equipment |
| US6440261B1 (en) | 1999-05-25 | 2002-08-27 | Applied Materials, Inc. | Dual buffer chamber cluster tool for semiconductor wafer processing |
| US6841200B2 (en) | 1999-11-30 | 2005-01-11 | Applied Materials, Inc. | Dual wafer load lock |
| WO2010016185A1 (en) * | 2008-08-08 | 2010-02-11 | 本田技研工業株式会社 | Screw tightening device and torque sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252369A (en) * | 1988-03-30 | 1989-10-09 | Makita Electric Works Ltd | Rotation control device of electromotive tool |
-
1990
- 1990-07-27 JP JP19939590A patent/JPH0487782A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252369A (en) * | 1988-03-30 | 1989-10-09 | Makita Electric Works Ltd | Rotation control device of electromotive tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312525B1 (en) | 1997-07-11 | 2001-11-06 | Applied Materials, Inc. | Modular architecture for semiconductor wafer fabrication equipment |
| US6440261B1 (en) | 1999-05-25 | 2002-08-27 | Applied Materials, Inc. | Dual buffer chamber cluster tool for semiconductor wafer processing |
| US6841200B2 (en) | 1999-11-30 | 2005-01-11 | Applied Materials, Inc. | Dual wafer load lock |
| WO2010016185A1 (en) * | 2008-08-08 | 2010-02-11 | 本田技研工業株式会社 | Screw tightening device and torque sensor |
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