DE10358032A1 - Combined electric work tool, such as screw-driver or combi-hammer, has motor control for braking electric motor - Google Patents
Combined electric work tool, such as screw-driver or combi-hammer, has motor control for braking electric motor Download PDFInfo
- Publication number
- DE10358032A1 DE10358032A1 DE2003158032 DE10358032A DE10358032A1 DE 10358032 A1 DE10358032 A1 DE 10358032A1 DE 2003158032 DE2003158032 DE 2003158032 DE 10358032 A DE10358032 A DE 10358032A DE 10358032 A1 DE10358032 A1 DE 10358032A1
- Authority
- DE
- Germany
- Prior art keywords
- electric motor
- electric
- operating mode
- motor
- hand 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.)
- Ceased
Links
- 238000005553 drilling Methods 0.000 claims description 9
- 238000010009 beating Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/006—Mode changers; Mechanisms connected thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/221—Sensors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Portable Power Tools In General (AREA)
Abstract
Eine kombinierte Elektrohandwerkzeugmaschine mit zumindest zwei Betriebsmodi (2, 3), die über einen von außen händisch betätigbaren Modiwahlschalter schaltbar sind, mit einer Motorsteuerung (5) für einen Elektromotor (6), über welche der Elektromotor (6) in zumindest einem ersten Betriebsmodus (2) mit einer ersten Auslaufzeit aktiv abbremsbar ist, wobei der Elektromotor (6) in zumindest einem zweiten Betriebsmodus (3) in einer zweiten, von der ersten Auslaufzeit verschiedenen, Auslaufzeit abbremsbar ist.A combined electric hand tool machine with at least two operating modes (2, 3), about one from the outside manually actuated Modiwahlschalter are switchable, with a motor control (5) for a Electric motor (6), over which the electric motor (6) in at least a first operating mode (2) is actively braked with a first efflux time, wherein the Electric motor (6) in at least one second operating mode (3) in one second, from the first flow time different, flow time braked is.
Description
Die Erfindung bezeichnet eine kombinierte Elektrohandwerkzeugmaschine, wie einen Bohrschrauber oder einen Kombihammer.The Invention refers to a combined electric hand tool machine, like a drill or a combination hammer.
Bei für mehrere verschiedene Betriebsmodi ausgebildeten Elektrohandwerkzeugmaschinen wird der konkrete Betriebsmodus üblicherweise manuell über einen von aussen händisch betätigbaren elektromechanischen Modiwahlschalter ausgewählt, indem von diesem im Kraftfluss vom Elektromotor zum Werkzeug angeordnete mechanische Transformationsmodule und/oder elektrische Motorsteuerungen für den Elektromotor betätigt werden.at for many various operating modes trained electric hand tool machines the concrete operating mode becomes common manually over one from the outside by hand actuated Electro-mechanical mode selector selected by this in the power flow from the electric motor to the tool arranged mechanical transformation modules and / or electric motor controls are operated for the electric motor.
Nach
der
Bei einer reinen Unterbrechung der Stromzufuhr weisen Elektrohandwerkzeugmaschinen auf Grund des mit einer hohen Nenndrehzahl laufenden Elektromotors trägheitsbedingt eine relativ lange Nachlaufzeit des angetriebenen Werkzeugs im Sekunden-Bereich auf. Da eine derartige lange Nachlaufzeit beim Antrieb einiger Werkzeuge, bspw. eines Spiralbohrers nachteilig ist, ist es üblich, den Elektromotor elektrisch aktiv abzubremsen, indem er bspw. im Kurzschlussbetrieb betrieben wird und somit eine Motorbremse ausbildet. Andererseits ist das Nachlaufen des Werkzeugs in anderen Betriebsmodi vorteilhaft, bspw. beim « Schlagbohren » mit einem Bohrmeissel, dessen Festfressen im Bohrloch beim Abschluss des Bohrvorgangs durch das trägheitsbedingte Nachlaufen unterbunden wird.at a pure interruption of power supply have electric hand tool machines due to the electric motor running at a high rated speed inertia a relatively long follow-up time of the driven tool in the second range on. Since such a long follow-up time when driving some tools, For example, a twist drill is disadvantageous, it is common for the Electric motor to brake electrically active, for example, in short-circuit operation is operated and thus forms an engine brake. on the other hand is the tracking of the tool in other modes of operation advantageous, eg in the case of "impact drilling" with a drill bit, its seizing in the borehole at the completion of the drilling process by the inertia Tracking is prevented.
Nach
der
Die Aufgabe der Erfindung besteht in der Realisierung einer kombinierten Elektrohandwerkzeugmaschine mit optimiertem Bremsverhalten.The The object of the invention is the realization of a combined Electric hand tool machine with optimized braking behavior.
Die Aufgabe wird im Wesentlichen durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The The object is essentially achieved by the features of claim 1 solved. Advantageous developments emerge from the subclaims.
So weist eine kombinierte Elektrohandwerkzeugmaschine mit zumindest zwei Betriebsmodi, die über einen von aussen händisch betätigbaren Modiwahlschalter schaltbar sind, eine Motorsteuerung für einen Elektromotor auf, über welche der Elektromotor in zumindest einem ersten Betriebsmodus mit einer ersten Auslaufzeit aktiv abbremsbar ist, wobei der Elektromotor in zumindest einem zweiten Betriebsmodus in einer zweiten, von der ersten Auslaufzeit verschiedenen, Auslaufzeit abbremsbar ist.So has a combined electric hand tool with at least two operating modes over one from the outside by hand actuated Modiwahlschalter are switchable, a motor control for one Electric motor on, over which the electric motor in at least a first operating mode can be actively braked with a first flow time, wherein the electric motor in at least a second mode of operation in a second, from the first outflow time different, flow time can be braked.
Durch die, von dem Betriebsmodus abhängigen, unterschiedlichen Auslaufzeiten ist bei jedem vom Nutzer über den Modiwahlschalter ausgewählten Betriebsmodus ein für den Einsatzzweck optimales Bremsverhalten auswählbar.By the, depending on the operating mode, Different outflow times is with each of the user over the Mode selector selected Operating mode on for the application optimal braking behavior selectable.
Vorteilhaft ist im zweiten Betriebsmodus der Elektromotor aktiv abbremsbar, wodurch deren zugeordnete zweite Auslaufzeit durch die Dimensionierung der der Motorsteuerung bei derer Herstellung festlegbar ist.Advantageous is in the second operating mode, the electric motor actively braked, whereby their associated second flow time by the dimensioning the motor control at whose production can be determined.
Vorteilhaft weist der Modiwahlschalter ein kontaktloses Schaltelement, weiter vorteilhaft einen Hall-Schalter, zur Steuerung der Motorsteuerung auf, wodurch die Steuerung der unterschiedlichen Auslaufzeiten störungsunempfindlich schaltbar ist.Advantageous the mode selector switch has a non-contact switching element advantageously a Hall switch, for controlling the engine control on, whereby the control of the different flow times insensitivity insensitive is switchable.
Vorteilhaft ist bei einer zumindest teilweise drehenden und schlagenden Elektrohandwerkzeugmaschine mit einem ersten Betriebsmodus: « Drehbohren » und einem zweiten Betriebsmodus: « Schlagbohren », die zweite Auslaufzeit länger als die erste Auslaufzeit, wodurch das Auslaufen des Elektromotors beim « Schlagbohren » gezielt der Vermeidung von Werkzeugarretierungen dient.Advantageous is at an at least partially rotating and beating electric hand tool with a first operating mode: «rotary drilling» and one second mode of operation: "Drill", the second Leakage time longer as the first flow time, causing the leakage of the electric motor aimed at "impact drilling" avoiding tool locks.
Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels mit der Darstellung einer Elektrohandwerkzeugmaschine näher erläutert.The Invention is related an advantageous embodiment explained in more detail with the representation of an electric hand tool.
Nach
der Darstellung ist bei einer kombinierten Elektrohandwerkzeugmaschine
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003158032 DE10358032A1 (en) | 2003-12-11 | 2003-12-11 | Combined electric work tool, such as screw-driver or combi-hammer, has motor control for braking electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003158032 DE10358032A1 (en) | 2003-12-11 | 2003-12-11 | Combined electric work tool, such as screw-driver or combi-hammer, has motor control for braking electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10358032A1 true DE10358032A1 (en) | 2005-07-14 |
Family
ID=34672605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003158032 Ceased DE10358032A1 (en) | 2003-12-11 | 2003-12-11 | Combined electric work tool, such as screw-driver or combi-hammer, has motor control for braking electric motor |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10358032A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7717191B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode hammer drill with shift lock |
| US7717192B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode drill with mode collar |
| US7735575B2 (en) | 2007-11-21 | 2010-06-15 | Black & Decker Inc. | Hammer drill with hard hammer support structure |
| US7762349B2 (en) | 2007-11-21 | 2010-07-27 | Black & Decker Inc. | Multi-speed drill and transmission with low gear only clutch |
| US7770660B2 (en) | 2007-11-21 | 2010-08-10 | Black & Decker Inc. | Mid-handle drill construction and assembly process |
| US7798245B2 (en) | 2007-11-21 | 2010-09-21 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
| US7854274B2 (en) | 2007-11-21 | 2010-12-21 | Black & Decker Inc. | Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing |
| CN107206582A (en) * | 2015-01-28 | 2017-09-26 | 日立工机株式会社 | Percussion tool |
| EP4650111A1 (en) | 2024-05-15 | 2025-11-19 | Hilti Aktiengesellschaft | Gear shift mechanism for selecting between different modes of operation in a hand-held power tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4333294A1 (en) * | 1993-09-30 | 1995-04-06 | Bosch Gmbh Robert | Electric motor with an electrodynamic brake |
| DE4401664A1 (en) * | 1994-01-21 | 1995-07-27 | Bosch Gmbh Robert | Hammer drill |
| DE19809939A1 (en) * | 1998-03-07 | 1999-09-09 | Fein C & E | Braked electrical tool e.g. electric handtool with universal motor |
| DE10117123A1 (en) * | 2001-04-06 | 2002-10-17 | Bosch Gmbh Robert | Hand tool |
-
2003
- 2003-12-11 DE DE2003158032 patent/DE10358032A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4333294A1 (en) * | 1993-09-30 | 1995-04-06 | Bosch Gmbh Robert | Electric motor with an electrodynamic brake |
| DE4401664A1 (en) * | 1994-01-21 | 1995-07-27 | Bosch Gmbh Robert | Hammer drill |
| DE19809939A1 (en) * | 1998-03-07 | 1999-09-09 | Fein C & E | Braked electrical tool e.g. electric handtool with universal motor |
| DE10117123A1 (en) * | 2001-04-06 | 2002-10-17 | Bosch Gmbh Robert | Hand tool |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7717191B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode hammer drill with shift lock |
| US7717192B2 (en) | 2007-11-21 | 2010-05-18 | Black & Decker Inc. | Multi-mode drill with mode collar |
| US7735575B2 (en) | 2007-11-21 | 2010-06-15 | Black & Decker Inc. | Hammer drill with hard hammer support structure |
| US7762349B2 (en) | 2007-11-21 | 2010-07-27 | Black & Decker Inc. | Multi-speed drill and transmission with low gear only clutch |
| US7770660B2 (en) | 2007-11-21 | 2010-08-10 | Black & Decker Inc. | Mid-handle drill construction and assembly process |
| US7798245B2 (en) | 2007-11-21 | 2010-09-21 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
| US7854274B2 (en) | 2007-11-21 | 2010-12-21 | Black & Decker Inc. | Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing |
| US7987920B2 (en) | 2007-11-21 | 2011-08-02 | Black & Decker Inc. | Multi-mode drill with mode collar |
| US8109343B2 (en) | 2007-11-21 | 2012-02-07 | Black & Decker Inc. | Multi-mode drill with mode collar |
| US8292001B2 (en) | 2007-11-21 | 2012-10-23 | Black & Decker Inc. | Multi-mode drill with an electronic switching arrangement |
| US8555998B2 (en) | 2007-11-21 | 2013-10-15 | Black & Decker Inc. | Multi-mode drill with mode collar |
| CN107206582A (en) * | 2015-01-28 | 2017-09-26 | 日立工机株式会社 | Percussion tool |
| US20180015603A1 (en) * | 2015-01-28 | 2018-01-18 | Hitachi Koki Co., Ltd. | Impact tool |
| EP3251801A4 (en) * | 2015-01-28 | 2018-09-19 | Koki Holdings Kabushiki Kaisha | Impact tool |
| EP4650111A1 (en) | 2024-05-15 | 2025-11-19 | Hilti Aktiengesellschaft | Gear shift mechanism for selecting between different modes of operation in a hand-held power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: HILTI AKTIENGESELLSCHAFT, SCHAAN, LI |
|
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |
Effective date: 20111222 |