DE2755960A1 - Bidirectional domestic electric power tool - has spring loaded direction switch always returning to clockwise position when tool is switched off - Google Patents
Bidirectional domestic electric power tool - has spring loaded direction switch always returning to clockwise position when tool is switched offInfo
- Publication number
- DE2755960A1 DE2755960A1 DE19772755960 DE2755960A DE2755960A1 DE 2755960 A1 DE2755960 A1 DE 2755960A1 DE 19772755960 DE19772755960 DE 19772755960 DE 2755960 A DE2755960 A DE 2755960A DE 2755960 A1 DE2755960 A1 DE 2755960A1
- Authority
- DE
- Germany
- Prior art keywords
- lever
- motor
- switch
- improvement device
- tool
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
- H01H9/063—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a reversing switch
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Motorisch angetriebenes Heimwerkergerät Motor-driven do-it-yourself device
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein motorisch angetriebenes Heimwerkergerät, beispielsweise eine Schlagbohrmaschine oder dergleichen, für Rechts-und Linkslauf zu konzipieren, derart, daß die betreffende Maschine auch zum Antrieb von Heimwerkervorsatzgeräten geeignet und dabei insbesondere eine Unfallgefahr infolge falscher Drehrichtung des jeweiligen Vorsatzgerätes von vornherein ausgeschaltet ist.The present invention is based on the object of a motorized powered do-it-yourself device, for example a hammer drill or the like, To be designed for clockwise and counter-clockwise rotation, so that the machine in question also suitable for driving do-it-yourself attachments and particularly a risk of accident switched off from the start due to the wrong direction of rotation of the respective attachment is.
Diese Aufgabe ist dadurch gelöst, daß das Gerät erfindungsgemäß mit einen unter der Wirkung eines RL:ckstellelements stehenden Hebelumschalter für Rechts- und Linkslauf ausgerüstet ist, das den Umschalthebel nach dlrm Abschalten des zuvor im Linkslauf betriebenen Antriebsmotors selbsttätig in die Stellung Rechtslauf unlegt.This object is achieved in that the device according to the invention with a lever switch under the action of an RL: reset element for clockwise and counter-clockwise rotation is equipped, which switches off the switch lever after switching off the previously drive motor operated in left-hand rotation automatically switches to the right-hand rotation position.
Dabei hat es sich als vorteilhaft erwiesen, das Rückstellelement als Feder oder als hydraulisch bzw. pneumatisch beaufschlagten Rückstellkolben auszubilden. In manchen Fällen kann es auch zweckmäßig sein, das Rückstellelement als Hubmagneten auszubilden.It has proven to be advantageous to use the restoring element as Train spring or as a hydraulically or pneumatically actuated return piston. In some cases it can also be useful to use the return element as a lifting magnet to train.
Um bei der verwendung von solchen Schaltern die einen Arretierdrücker für Dauerlauf besitze, die Gewähr zu --ben, daß die Schalterstellung Linkslauf nie zu einem Dauerlauf füliren kann, ist nach einem weiteren Gedanken der Erfindung der Hebel des Umschalters mit einem Sperrstift oder dergleichen Verriegelungselement versehen, der bei hebels bzw, Schalterstellung Linkslauf den Arretierdrücker sperrend hintergreift.In order to use a locking lever when using such switches For continuous operation I have the guarantee that the switch position will never run counter-clockwise can lead to a continuous run is according to a further idea of the invention the lever of the switch with a locking pin or similar locking element provided, which locks the locking lever when the lever or switch is in counterclockwise rotation engages behind.
Die Erfindung wird im nachstehenden anhand der Zeichnung naher erläutert.The invention is explained in more detail below with reference to the drawing.
Es zeigen: Fig. 1 den Schalter- und Handgriffbereich eines Heimwerkergeräts in Teilansicht, Fig. 2 eine Ansicht entlang des Schnittes A-B durch Fig.1.1 shows the switch and handle area of a home improvement device in partial view, FIG. 2 a view along the section A-B through FIG.
Wie aus den Figuren ersichtlich ist, enthält der in das Handgriffteil 1 eingebaute Betätigungs- bzw. Regelschalter 2 einen Umschalter 2' für Rechts- und Linkslauf, welcher mittels eines Umschalthebels 3 bet--tigt wird, der um die Achse 4 drehbar gelagert ist, Auf den rückwärtigen Teil 5 des Umschalthebels 3 wirkt eine Schenkelfeder 6 ein, die mittels zweier Ösen an zwei zapfenförmigen Ansätzen 7,8 an eigentlichen Schalter 5 gehaltert ist. An einen Ausleger 9 des Umschalthebels 3, an welchem ein Verlängerungshebel 3' für eine problemlose Betätigung angreift, ist ein Jerriegelungselement in Form eines Stiftes 10 befestigt.As can be seen from the figures, it contains the handle part 1 built-in actuation or control switch 2 a changeover switch 2 'for right and Counter-clockwise rotation, which is actuated by means of a switch lever 3, which rotates around the axis 4 is rotatably mounted, on the rear part 5 of the switching lever 3 acts Leg spring 6, which by means of two eyelets on two peg-shaped lugs 7,8 at actual switch 5 is supported. To a boom 9 of the switching lever 3, on which an extension lever 3 'engages for problem-free actuation is a locking element in the form of a pin 10 is attached.
Dieser Stift greift in der Stellung "Linkslauf" des Umschalters (gestrichelt gezeichnete Lage des Umschalthebels 3) unter den Arretierdrücker 11 des Schalterdrückers 12 und verhindert somit dessen Betätigung. Damit ist sichergestellt, daß ein Dauerlauf des Antriebsmotors im Linkslauf ausgeschlossen ist.This pin engages in the "counterclockwise rotation" position of the switch (dashed Drawn position of the switching lever 3) under the locking lever 11 of the switch lever 12 and thus prevents its actuation. This ensures that a continuous run of the drive motor in counterclockwise rotation is excluded.
Zum. Betrieb des Geräts bzw. Antriebsmotors im Linkslauf ist der Umschalthebel 3 durch Verschieben des Verlängerungshebels 3' entgegen der Rückstellkraft der Schenkelfeder 6 in die gestrichelt gezeichnete Lage zu bringen und in dieser Lage zu halten. Ist der Linkslaufbetrieb beendet, also beispielsweise nach dem Ausdrehen einer Schraube mit Rechtsgewinde, so schnellt der Umschalthebel 3 nach Loslassen der Verlängerung 3' selbsttätig in die Normalstellung Rechtslauf". Für den Fall der Normalstellung "Linkslauf" gilt sinngemäß das Umgekehrte. Anstelle einer iickstellfeder könnte ohne weiteres auch die Rückstellkraft eines Gllmmielements für das selbsttätige Zurückschnellen des Umschalthebels 3 in die entsprechende Normalstellung nutzbar gemacht werden.To the. The switching lever is used to operate the device or drive motor in counter-clockwise rotation 3 by moving the extension lever 3 'against the restoring force of the leg spring 6 to bring into the position shown in dashed lines and to hold it in this position. is counter-clockwise operation ends, for example after unscrewing a screw with right-hand thread, the switching lever 3 will snap after releasing the extension 3 'automatically into the normal position clockwise ". In the case of the normal position "Counterclockwise rotation", the reverse applies accordingly. Instead of a return spring could also the restoring force of a rubber element for the automatic Snapping back of the switching lever 3 in the corresponding normal position can be used be made.
Im 3edarfsfall kann der Verlängerungshebel 3' zum Betätigen des Umschalthebels 3 und damit des Umschalters 2' für Rects-LInkslauf auca durch einen Schaltbolzen (Drücker oder dgl.) ersetzt werden, der unmittelbar oder mittelbar auf den Umschalthebel 3 des Umschalters einwirkt. LeerseiteIf necessary, the extension lever 3 'can be used to actuate the switching lever 3 and thus the switch 2 'for Rects-Left run also by a switching bolt (Pusher or the like.) Are replaced directly or indirectly on the switching lever 3 of the switch acts. Blank page
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772755960 DE2755960A1 (en) | 1977-12-15 | 1977-12-15 | Bidirectional domestic electric power tool - has spring loaded direction switch always returning to clockwise position when tool is switched off |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772755960 DE2755960A1 (en) | 1977-12-15 | 1977-12-15 | Bidirectional domestic electric power tool - has spring loaded direction switch always returning to clockwise position when tool is switched off |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2755960A1 true DE2755960A1 (en) | 1979-06-21 |
Family
ID=6026232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772755960 Withdrawn DE2755960A1 (en) | 1977-12-15 | 1977-12-15 | Bidirectional domestic electric power tool - has spring loaded direction switch always returning to clockwise position when tool is switched off |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2755960A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0057413A2 (en) * | 1981-01-29 | 1982-08-11 | Black & Decker Inc. | Printed circuit board and trigger-switch arrangement for a portable tool |
EP0224010A1 (en) * | 1985-11-19 | 1987-06-03 | Robert Bosch Gmbh | Portable power-actuated tool for drilling with or without percussion |
EP0585541A2 (en) * | 1992-07-31 | 1994-03-09 | Marquardt GmbH | Electric switch for speed control of motors |
DE19720947B4 (en) * | 1996-06-15 | 2005-07-28 | Robert Bosch Gmbh | Electric combination hammer |
WO2009156005A1 (en) * | 2008-06-24 | 2009-12-30 | Robert Bosch Gmbh | Method for operating a power tool having a clutch device |
-
1977
- 1977-12-15 DE DE19772755960 patent/DE2755960A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0057413A2 (en) * | 1981-01-29 | 1982-08-11 | Black & Decker Inc. | Printed circuit board and trigger-switch arrangement for a portable tool |
EP0057413A3 (en) * | 1981-01-29 | 1982-09-22 | Black & Decker Inc. | Printed circuit board and trigger-switch arrangement for a portable tool |
EP0224010A1 (en) * | 1985-11-19 | 1987-06-03 | Robert Bosch Gmbh | Portable power-actuated tool for drilling with or without percussion |
EP0585541A2 (en) * | 1992-07-31 | 1994-03-09 | Marquardt GmbH | Electric switch for speed control of motors |
EP0585541A3 (en) * | 1992-07-31 | 1994-11-17 | Marquardt Gmbh | Electric switch for speed control of motors. |
DE19720947B4 (en) * | 1996-06-15 | 2005-07-28 | Robert Bosch Gmbh | Electric combination hammer |
WO2009156005A1 (en) * | 2008-06-24 | 2009-12-30 | Robert Bosch Gmbh | Method for operating a power tool having a clutch device |
US8905153B2 (en) | 2008-06-24 | 2014-12-09 | Robert Bosch Gmbh | Method for operating a power tool having a clutch device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8125 | Change of the main classification | ||
8126 | Change of the secondary classification | ||
8176 | Proceedings suspended because of application no: |
Ref document number: 2631994 Country of ref document: DE Format of ref document f/p: P |
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8139 | Disposal/non-payment of the annual fee | ||
8178 | Suspension cancelled |