EP1234640A1 - Mode switch for a hand tool - Google Patents
Mode switch for a hand tool Download PDFInfo
- Publication number
- EP1234640A1 EP1234640A1 EP02405098A EP02405098A EP1234640A1 EP 1234640 A1 EP1234640 A1 EP 1234640A1 EP 02405098 A EP02405098 A EP 02405098A EP 02405098 A EP02405098 A EP 02405098A EP 1234640 A1 EP1234640 A1 EP 1234640A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive part
- mode selection
- rotary switch
- switch according
- selection rotary
- 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.)
- Granted
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Classifications
-
- 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
-
- 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
- B25D2250/255—Switches
-
- 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
- B25D2250/371—Use of springs
Definitions
- the invention relates to a mode selection rotary switch for a hand tool device such as a hammer drill or drill.
- the switching sequence of the operating modes is: turning ⁇ -> turning beating ⁇ -> Chisel positioning ⁇ -> chisels permitted and in both directions in one Switching stage switchable.
- Switching by means of manually operable, rotatable and axially switchable relocatable Switching elements such as countershafts or switching sleeves.
- the angle conversion operated from the outside on the drive section is used at least in part via an eccentrically arranged pin directly by direct, non-rotating engagement or indirect through transmission via shifting aids in an axial Movement of a switching element is transformed.
- the switching of an operating mode is only possible in the case of a positive assignment of the gears on both sides between the gear pairs used in the gear stages possible.
- the drive part is usually fixable locally and the switching chain is resilient in itself preloaded movable.
- a mode selector switch which is internally spring-loaded biased rotatable for synchronized switching of the operating modes Hand tool device, from a manually driving drive part and an eccentric mounted pin, against a recess arranged in the drive part the eccentric inner edge biased by a compression spring and along it, a plurality of locally stable positions forming, radial contour is switchable movable.
- EP836902 there is a mode selector switch, which is internally spring-loaded biased rotatable for synchronized switching of the operating modes Hand tool device, from a manually driving drive part and one over eccentrically mounted pin-driving output part, which is coaxially rotatable are axially fixed.
- a mode selector switch which is internally spring-loaded biased rotatable for synchronized switching of the operating modes Hand tool device, from a manually driving drive part and one over eccentrically mounted pin-driving output part, which is coaxially rotatable are axially fixed.
- Within the drive part and the driven part are mutually opposite, two circular arcs in the plane of rotation perpendicular to the axis of rotation oriented, eccentrically arranged recesses for two spiral compression springs arranged, which with respect to their two spring ends alternately with either End face of the recess in the drive part or alternatively with the end face of the Make contact with the recess in the stripping section.
- the object of the invention is to implement another Rotary mode-selector switch. Another aspect is the possibility of training a direction-dependent, non-mirror-symmetrical bias curve regarding the angular misalignment.
- a mode selection rotary switch for synchronized switching of the Operating modes of a hand tool device
- a manually operable from the outside, driving drive part and an output drive part, which are coaxial with each other are rotatably axially fixed, two within the drive part transverse to the axis of rotation eccentrically arranged recesses are arranged for two spring elements, which rest with their first end faces on the drive part and their second end faces are oriented in the same direction, which at an angular offset of the drive part to Output part at least alternately at least in a spring element with at least an eccentrically arranged, axially engaging in the recesses, contact piece of the stripping section is in contact.
- the drive part is angularly offset from the driven part, only one of the Spring elements arranged within the axial region of the drive part claimed, whereby bias in different directions of rotation of the Angular offset is decoupled from each other.
- the second end face of the spring element with a the second end face of the is advantageous Spring element covering, smooth pressure piece provided, resulting in a low wear Contact of the spring element to the contact piece can be realized.
- the recesses in the drive part within the plane of rotation perpendicular to the are advantageous Axis of rotation arranged, resulting in a compact design of the mode selection rotary switch is feasible.
- the spring elements are advantageous as compression springs and further advantageously spiral executed, whereby with a compact design high biasing forces at a largely linear characteristic can be realized.
- the mode selection rotary switch is advantageously mirror-symmetrical, which means that one of the direction of rotation independent amount of the preload with respect to the amount of Angular offset is realizable.
- the rotational position of the drive part via a notch in the drive part is advantageous Fixing element which engages in a form-fitting manner, thereby making a one-time manual operation of operating mode selected on the outside can be fixed in a self-locking manner with respect to the housing, and an angular offset assigned to a switching stage according to the switching sequence, up to synchronized switching of the transmission is maintained and a temporary stored bias within the switching chain causes.
- the fixing element is advantageous as a radial notches in the drive part engaging leaf spring, which is technologically easy to implement.
- a pin is advantageously arranged eccentrically in the driven part and is further advantageously free rotatably mounted, which means that it is non-rotatable with a shifting aid, such as a sheet metal bracket can be connected.
- a mode selection rotary switch 1 has a manually operable from the outside, driving drive part 2 and an output drive part 3, which are coaxial with each other are rotatably axially fixed on.
- An eccentric pin 4 is free in the output part 3 rotatably mounted.
- the mode selection rotary switch 1 which is designed with mirror symmetry, has one Angular offset ⁇ between the drive part 2 and the driven part 3, wherein alternately exactly one spring element 6 with exactly one eccentrically arranged, axially engaging in the recess 5, contact piece 10 of the driven part 3 in contact stands and exactly one spring element 6 'is contact-free with the contact piece 10'.
- the absolute Rotational position of the drive part 2 relative to a housing 11 is in a radial Notch 12 of the drive part 2 engaging fixing element 13 in the form fixed with a leaf spring self-locking.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switches With Compound Operations (AREA)
- Portable Power Tools In General (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Ein Modenwahldrehschalter (1) zur synchronisierten Umschaltung der Betriebsmodi eines Handwerkzeuggerätes mit einem händisch von aussen betätigbaren, antreibenden Antriebsteil (2) und einem abtreibenden Abtriebsteil (3), wobei zwei exzentrisch angeordnete Ausnehmungen (5, 5') für zwei Federelemente (6, 6') angeordnet sind, welche mit ihren ersten Stirnflächen (7, 7') am Antriebsteil (2) anliegen und deren zweite Stirnflächen (8, 8') gleichsinnig orientiert sind, wodurch bei einem Winkelversatz (α) des Antriebsteils (2) zum Abtriebsteil (3) zumindest wechselweise zumindest bei einem Federelement (6, 6') die zweite Stirnfläche (8, 8') mit mindestens einem exzentrisch angeordneten, in die Ausnehmungen (5, 5') axial eingreifenden, Kontaktstück (10, 10') des Abtriebsteils (3) kontaktierbar ist. <IMAGE>A mode selection rotary switch (1) for the synchronized switching of the operating modes of a hand tool with a manually actuating drive part (2) and an output part (3), two eccentrically arranged recesses (5, 5 ') for two spring elements (6, 6 ') are arranged which rest with their first end faces (7, 7') on the drive part (2) and whose second end faces (8, 8 ') are oriented in the same direction, so that the drive part (2) is at an angular offset (α) to the driven part (3) at least alternately, at least in the case of a spring element (6, 6 '), the second end face (8, 8') with at least one eccentrically arranged contact piece (10, 10 ') which engages axially in the recesses (5, 5') Output part (3) can be contacted. <IMAGE>
Description
Die Erfindung bezeichnet einen Modenwahldrehschalter für ein Handwerkzeuggerät wie einen Bohrhammer oder einen Bohrschrauber.The invention relates to a mode selection rotary switch for a hand tool device such as a hammer drill or drill.
Bei Bohrhämmern ist bspw. die Schaltfolge der Betriebsmodi: Drehen <-> Drehschlagen <-> Meisselpositionieren <-> Meisseln zulässig und in beiden Richtungen in jeweils einer Schaltstufe schaltbar.For rotary hammers, for example, the switching sequence of the operating modes is: turning <-> turning beating <-> Chisel positioning <-> chisels permitted and in both directions in one Switching stage switchable.
Bei Handwerkzeuggeräten mit mehreren verschiedenen Bewegungsmodi ist zumeist eine mechanische Umschaltung einzelner Getriebestufen notwendig. Üblicherweise erfolgt diese Umschaltung durch aussen händisch betätigbare, drehfeste und axial schaltbar versetzbare Schaltelemente wie Vorgelegewellen oder Schalthülsen.For hand tool devices with several different movement modes, there is usually one mechanical switching of individual gear stages necessary. This is usually done Switching by means of manually operable, rotatable and axially switchable relocatable Switching elements such as countershafts or switching sleeves.
Bei Modenwahldrehschaltern wird die von aussen am Antriebsteil betätigte Winkelumsetzung zumindest teilweise über einen exzentrisch angeordneten Zapfen direkt durch unmittelbaren, drehfreien Eingriff oder mittelbar durch die Übertragung über Schalthilfsmittel in eine axiale Bewegung eines Schaltelementes transformiert.With mode selection rotary switches, the angle conversion operated from the outside on the drive section is used at least in part via an eccentrically arranged pin directly by direct, non-rotating engagement or indirect through transmission via shifting aids in an axial Movement of a switching element is transformed.
Die Umschaltung eines Betriebsmodi ist nur im Falle einer formschlüssigen Zuordnung der beidseitigen Verzahnungen zwischen den benutzten Zahnradpaarungen der Getriebestufen möglich. Zur synchronisierten Umschaltung durch Entkopplung einer händisch betätigten, zulässigen Modenwahl von der aktuellen Position der Zahnradpaarungen der Getriebestufen ist üblicherweise das Antriebsteil lokal fixierbar und die Schaltkette in sich federnd vorgespannt beweglich.The switching of an operating mode is only possible in the case of a positive assignment of the gears on both sides between the gear pairs used in the gear stages possible. For synchronized switching by decoupling a manually operated permissible mode selection from the current position of the gear pairs of the gear stages the drive part is usually fixable locally and the switching chain is resilient in itself preloaded movable.
Nach der DE3618024 besteht ein Modenwahldrehschalter, welcher intern federnd vorgespannt drehbar ist, zur synchronisierten Umschaltung der Betriebsmodi eines Handwerkzeuggerätes, aus einem händisch antreibenden Antriebsteil und einem exzentrisch gelagerten Zapfen, der innerhalb einer im Antriebsteil angeordneten Aussparung gegen deren exzentrischen Innenrand über eine Druckfeder vorgespannt und entlang dessen, mehrere lokal stabile Positionen ausbildenden, radialer Kontur schaltbar beweglich ist. According to DE3618024 there is a mode selector switch, which is internally spring-loaded biased rotatable for synchronized switching of the operating modes Hand tool device, from a manually driving drive part and an eccentric mounted pin, against a recess arranged in the drive part the eccentric inner edge biased by a compression spring and along it, a plurality of locally stable positions forming, radial contour is switchable movable.
Nach der EP836902 besteht ein Modenwahldrehschalter, welcher intern federnd vorgespannt drehbar ist, zur synchronisierten Umschaltung der Betriebsmodi eines Handwerkzeuggerätes, aus einem händisch antreibenden Antriebsteil und einem über einen exzentrisch gelagerten Zapfen abtreibenden Abtriebsteil, welche zueinander koaxial drehfrei axial fest gelagert sind. Innerhalb des Antriebsteils und des Abtriebsteils sind sich einander gegenüberliegend, je zwei kreisbogenförmig in der Drehebene senkrecht zur Drehachse orientierte, exzentrisch angeordnete Ausnehmungen für zwei spiralförmige Druckfedern angeordnet, welche bezüglich ihrer beiden Federenden wechselweise entweder mit der Stirnfläche der Ausnehmung im Antriebsteil oder alternativ mit der Stirnfläche der Ausnehmung im Abtriebsteil in Kontakt stehen. Bei einer Relativdrehung des Antriebsteils zum Abtriebsteil werden stets beide, axial im Übergangsbereich zwischen dem Antriebsteil und dem Abtriebsteil angeordnete, Druckfedern gleichartig in beiden Drehrichtungen beansprucht, wodurch sich ein spiegelsymmetrischer Vorspannungsverlauf bezüglich des Winkelversatzes ergibt.According to EP836902 there is a mode selector switch, which is internally spring-loaded biased rotatable for synchronized switching of the operating modes Hand tool device, from a manually driving drive part and one over eccentrically mounted pin-driving output part, which is coaxially rotatable are axially fixed. Within the drive part and the driven part are mutually opposite, two circular arcs in the plane of rotation perpendicular to the axis of rotation oriented, eccentrically arranged recesses for two spiral compression springs arranged, which with respect to their two spring ends alternately with either End face of the recess in the drive part or alternatively with the end face of the Make contact with the recess in the stripping section. With a relative rotation of the drive part both become the driven part, axially in the transition area between the drive part and the output part arranged, compression springs similar in both directions of rotation claimed, which results in a mirror-symmetrical bias curve with respect to Angular offset results.
Die Aufgabe der Erfindung besteht in der Realisierung eines weiteren Modenwahldrehschalters. Ein weiterer Aspekt besteht in der Möglichkeit zur Ausbildung eines drehrichtungsabhängigen, nicht spiegelsymmetrischen Vorspannungsverlaufs bezüglich des Winkelversatzes.The object of the invention is to implement another Rotary mode-selector switch. Another aspect is the possibility of training a direction-dependent, non-mirror-symmetrical bias curve regarding the angular misalignment.
Die Aufgabe wird im wesentlichen durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The task is essentially solved by the features of the independent claims. Advantageous further developments result from the subclaims.
Im wesentlichen weist ein Modenwahldrehschalter zur synchronisierten Umschaltung der Betriebsmodi eines Handwerkzeuggerätes ein händisch von aussen betätigbares, antreibendes Antriebsteil und ein abtreibendes Abtriebsteil auf, welche zueinander koaxial drehfrei axial fest gelagert sind, wobei innerhalb des Antriebsteils quer zur Drehachse zwei exzentrisch angeordnete Ausnehmungen für zwei Federelemente angeordnet sind, welche mit ihren ersten Stirnflächen am Antriebsteil anliegen und deren zweite Stirnflächen gleichsinnig orientiert sind, welche bei einem Winkelversatz des Antriebsteils zum Abtriebsteil zumindest wechselweise zumindest bei einem Federelement mit mindestens einem exzentrisch angeordneten, in die Ausnehmungen axial eingreifenden, Kontaktstück des Abtriebsteils in Kontakt steht.Essentially, a mode selection rotary switch for synchronized switching of the Operating modes of a hand tool device a manually operable from the outside, driving drive part and an output drive part, which are coaxial with each other are rotatably axially fixed, two within the drive part transverse to the axis of rotation eccentrically arranged recesses are arranged for two spring elements, which rest with their first end faces on the drive part and their second end faces are oriented in the same direction, which at an angular offset of the drive part to Output part at least alternately at least in a spring element with at least an eccentrically arranged, axially engaging in the recesses, contact piece of the stripping section is in contact.
Bei einem Winkelversatz des Antriebsteils zum Abtriebsteil wird somit stets nur eines der, innerhalb des axialen Bereiches des Antriebsteils angeordneten, Federelemente beansprucht, wodurch Vorspannung bei unterschiedlichen Drehrichtungen des Winkelversatzes voneinander entkoppelt ist.If the drive part is angularly offset from the driven part, only one of the Spring elements arranged within the axial region of the drive part claimed, whereby bias in different directions of rotation of the Angular offset is decoupled from each other.
Vorteilhaft ist die zweite Stirnfläche des Federelements mit einem die zweite Stirnfläche des Federelements abdeckenden, glatten Druckstück versehen, wodurch ein verschleissarmer Kontakt des Federelements zum Kontaktstück realisierbar ist.The second end face of the spring element with a the second end face of the is advantageous Spring element covering, smooth pressure piece provided, resulting in a low wear Contact of the spring element to the contact piece can be realized.
Vorteilhaft sind die Ausnehmungen im Antriebsteil innerhalb der Drehebene senkrecht zur Drehachse angeordnet, wodurch eine kompakte Bauweise des Modenwahldrehschalters realisierbar ist.The recesses in the drive part within the plane of rotation perpendicular to the are advantageous Axis of rotation arranged, resulting in a compact design of the mode selection rotary switch is feasible.
Die Federelemente sind vorteilhaft als Druckfedern und weiter vorteilhaft spiralförmig ausgeführt, wodurch bei kompakter Bauweise hohe Vorspannkräfte bei einer weitgehend linearen Kennlinie realisierbar sind.The spring elements are advantageous as compression springs and further advantageously spiral executed, whereby with a compact design high biasing forces at a largely linear characteristic can be realized.
Vorteilhaft ist der Modenwahldrehschalter spiegelsymmetrisch ausgeführt, wodurch ein von der Drehrichtung unabhängiger Betrag der Vorspannung bezüglich des Betrags des Winkelversatzes realisierbar ist.The mode selection rotary switch is advantageously mirror-symmetrical, which means that one of the direction of rotation independent amount of the preload with respect to the amount of Angular offset is realizable.
Vorteilhaft ist die Drehposition des Antriebsteils über ein in Auskerbungen des Antriebsteils kraftformschlüssig eingreifendes Fixierelement fixierbar, wodurch ein einmalig manuell von aussen vorgewählter Betriebsmode gegenüber dem Gehäuse selbsthemmend fixierbar ist, und ein, einer Schaltstufe entsprechend der Schaltfolge zugeordneter, Winkelversatz, bis zur synchronisierten Umschaltung des Getriebes aufrecht erhalten bleibt und eine temporär gespeicherte Vorspannung innerhalb der Schaltkette bewirkt.The rotational position of the drive part via a notch in the drive part is advantageous Fixing element which engages in a form-fitting manner, thereby making a one-time manual operation of operating mode selected on the outside can be fixed in a self-locking manner with respect to the housing, and an angular offset assigned to a switching stage according to the switching sequence, up to synchronized switching of the transmission is maintained and a temporary stored bias within the switching chain causes.
Vorteilhaft ist das Fixierelement als eine in radiale Auskerbungen des Antriebsteils eingreifende Blattfeder ausgeführt, was technologisch einfach realisierbar ist.The fixing element is advantageous as a radial notches in the drive part engaging leaf spring, which is technologically easy to implement.
Vorteilhaft ist ein Zapfen im Abtriebsteil exzentrisch angeordnet und weiter vorteilhaft frei drehbar gelagert, wodurch dieser formschlüssig drehfest mit einem Schalthilfsmittel, wie einem Blechbügel, verbunden werden kann. A pin is advantageously arranged eccentrically in the driven part and is further advantageously free rotatably mounted, which means that it is non-rotatable with a shifting aid, such as a sheet metal bracket can be connected.
Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit:
Nach Fig. 1 weist ein Modenwahldrehschalter 1 ein händisch von aussen betätigbares,
antreibendes Antriebsteil 2 und ein abtreibendes Abtriebsteil 3, welche zueinander koaxial
drehfrei axial fest gelagert sind, auf. Im Abtriebsteil 3 ist ein exzentrischer Zapfen 4 frei
drehbar gelagert. Innerhalb des Antriebsteils 2 sind zwei exzentrisch innerhalb der
Drehebene senkrecht zur Drehachse A angeordnete Ausnehmungen 5, 5' für zwei als
spiralförmige Druckfedern ausgeführte Federelemente 6, 6' angeordnet, welche mit ihren
ersten Stirnflächen 7, 7' am Antriebsteil 2 anliegen und deren zueinander gleichsinnig
orientierten zweiten Stirnflächen 8, 8' mit zwei glatten, mit abgewinkelten Führungsflächen
ausgebildeten, Druckstücken 9, 9' zwei exzentrisch angeordnete, in die Ausnehmungen 5, 5'
axial eingreifende, Kontaktstücke 10, 10' des Abtriebsteils 4 kontaktierbar zugeordnet sind.1, a mode
Nach Fig. 2 weist der spiegelsymmetrisch ausgebildete Modenwahldrehschalter 1 einen
Winkelversatz α zwischen dem Antriebsteil 2 und dem Abtriebsteil 3 auf, wobei
wechselweise jeweils genau ein Federelement 6 mit genau einem exzentrisch angeordneten,
in die Ausnehmung 5 axial eingreifenden, Kontaktstück 10 des Abtriebsteils 3 in Kontakt
steht und genau ein Federelement 6' kontaktfrei zum Kontaktstück 10' ist. Die absolute
Drehposition des Antriebsteils 2 gegenüber einem Gehäuse 11 ist über ein in eine radiale
Auskerbung 12 des Antriebsteils 2 kraftformschlüssig eingreifendes Fixierelement 13 in Form
einer Blattfeder selbsthemmend fixiert.According to FIG. 2, the mode
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10108124A DE10108124A1 (en) | 2001-02-21 | 2001-02-21 | Mode selection rotary switch for a hand tool device |
| DE10108124 | 2001-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1234640A1 true EP1234640A1 (en) | 2002-08-28 |
| EP1234640B1 EP1234640B1 (en) | 2007-12-12 |
Family
ID=7674849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02405098A Expired - Lifetime EP1234640B1 (en) | 2001-02-21 | 2002-02-11 | Mode switch for a hand tool |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6610938B2 (en) |
| EP (1) | EP1234640B1 (en) |
| JP (1) | JP4472911B2 (en) |
| DE (2) | DE10108124A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2433224A (en) * | 2005-12-12 | 2007-06-20 | Bosch Gmbh Robert | Function selector switch |
| US7306049B2 (en) | 2004-12-23 | 2007-12-11 | Black & Decker Inc. | Mode change switch for power tool |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10357962B3 (en) * | 2003-12-11 | 2005-09-08 | Hilti Ag | Rotary Hammer |
| JP4509662B2 (en) * | 2004-06-16 | 2010-07-21 | 株式会社マキタ | Electric impact tool |
| US20060213675A1 (en) * | 2005-03-24 | 2006-09-28 | Whitmire Jason P | Combination drill |
| US7410007B2 (en) * | 2005-09-13 | 2008-08-12 | Eastway Fair Company Limited | Impact rotary tool with drill mode |
| US7511241B1 (en) * | 2006-12-30 | 2009-03-31 | Magda Martin A | Rotary indexing mechanism for a mechanically activated control |
| TWI469173B (en) * | 2012-10-16 | 2015-01-11 | Solteam Electronics Co Ltd | Multi-level rotary switch |
| TWI509650B (en) * | 2012-10-31 | 2015-11-21 | Solteam Electronics Co Ltd | Forward/backward rotation switching mechanism |
| CN103811220B (en) * | 2012-11-08 | 2015-10-14 | 崧腾企业股份有限公司 | Forward and reverse switching mechanism of switching device |
| US8822852B2 (en) * | 2012-11-13 | 2014-09-02 | Solteam Electronics Co., Ltd. | Multi-level rotary switch |
| JP2014100762A (en) | 2012-11-19 | 2014-06-05 | Makita Corp | Impact tool |
| US8981244B2 (en) * | 2012-12-14 | 2015-03-17 | Solteam Electronics Co., Ltd. | Forward/backward rotation switching mechanism |
| KR102417533B1 (en) * | 2017-09-14 | 2022-07-05 | 현대자동차주식회사 | System and method for controlling air conditioning system and isg of vehicle |
| CN108131126A (en) * | 2018-02-09 | 2018-06-08 | 徐工集团工程机械有限公司 | Control system, drill jumbo and the control method of rock drill |
| US11261964B2 (en) | 2018-05-17 | 2022-03-01 | Black & Decker Inc. | Compliant shifting mechanism and multi-speed power tool having same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373106A2 (en) * | 1988-12-09 | 1990-06-13 | HILTI Aktiengesellschaft | Gearbox for a hand tool |
| EP0612588A1 (en) * | 1993-02-26 | 1994-08-31 | Kress-elektrik GmbH + Co. Elektromotorenfabrik | Control device for electric tools |
| EP0836902A1 (en) * | 1996-10-11 | 1998-04-22 | Black & Decker Inc. | Mode change switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294746B1 (en) * | 2000-05-17 | 2001-09-25 | Vincent Yee | Rotary switch |
-
2001
- 2001-02-21 DE DE10108124A patent/DE10108124A1/en not_active Withdrawn
-
2002
- 2002-02-11 DE DE50211333T patent/DE50211333D1/en not_active Expired - Lifetime
- 2002-02-11 EP EP02405098A patent/EP1234640B1/en not_active Expired - Lifetime
- 2002-02-20 US US10/079,791 patent/US6610938B2/en not_active Expired - Lifetime
- 2002-02-21 JP JP2002044268A patent/JP4472911B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0373106A2 (en) * | 1988-12-09 | 1990-06-13 | HILTI Aktiengesellschaft | Gearbox for a hand tool |
| EP0612588A1 (en) * | 1993-02-26 | 1994-08-31 | Kress-elektrik GmbH + Co. Elektromotorenfabrik | Control device for electric tools |
| EP0836902A1 (en) * | 1996-10-11 | 1998-04-22 | Black & Decker Inc. | Mode change switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7306049B2 (en) | 2004-12-23 | 2007-12-11 | Black & Decker Inc. | Mode change switch for power tool |
| GB2433224A (en) * | 2005-12-12 | 2007-06-20 | Bosch Gmbh Robert | Function selector switch |
| GB2433224B (en) * | 2005-12-12 | 2008-09-03 | Bosch Gmbh Robert | Function selector switch for setting at least one function in a hand-held machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002292579A (en) | 2002-10-08 |
| JP4472911B2 (en) | 2010-06-02 |
| US20020112943A1 (en) | 2002-08-22 |
| DE50211333D1 (en) | 2008-01-24 |
| US6610938B2 (en) | 2003-08-26 |
| DE10108124A1 (en) | 2002-08-29 |
| EP1234640B1 (en) | 2007-12-12 |
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