EP1368160B1 - Luftfederschlagwerk mit bewegungsfrequenzgesteuertem leerlaufzustand - Google Patents
Luftfederschlagwerk mit bewegungsfrequenzgesteuertem leerlaufzustand Download PDFInfo
- Publication number
- EP1368160B1 EP1368160B1 EP02712942A EP02712942A EP1368160B1 EP 1368160 B1 EP1368160 B1 EP 1368160B1 EP 02712942 A EP02712942 A EP 02712942A EP 02712942 A EP02712942 A EP 02712942A EP 1368160 B1 EP1368160 B1 EP 1368160B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- pneumatic spring
- driving
- percussive mechanism
- frequency
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
-
- 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
Definitions
- the invention relates to an air spring hammer mechanism for a percussion and / or Hammer drill according to the preamble of claim 1.
- the internal combustion hammers have between one Motor shaft and the crankshaft of the air spring hammer mechanism a centrifugal clutch, which serves to disconnect the percussion drive when the internal combustion engine rotates at idle speed.
- a centrifugal clutch which serves to disconnect the percussion drive when the internal combustion engine rotates at idle speed.
- the invention has for its object to provide an air spring hammer mechanism, where the benefits of torque transmission and interruption can be maintained by the centrifugal clutch without the described To accept disadvantages.
- the air spring hammer mechanism is an idle air duct provided, via which the air spring receiving the striking operation Cavity between drive and percussion pistons with a compensation space connected is.
- the compensation room can e.g. B. the crankcase in which the crankshaft rotates to drive the drive piston.
- the compensation space can also be the area around the air spring hammer mechanism act, making sure that dirt, dust, Moisture or the like does not come from the compensation room and the idle air duct can penetrate into the cavity.
- a valve is arranged in the idle air duct, the open and closed position of the frequency of movement of the drive piston depends. It is thereby achieved according to the invention that the Deactivation of the air spring hammer mechanism, i.e. the transition from hammer operation in the idle mode not mechanically in the known manner via a Centrifugal clutch takes place, but via a movement frequency controlled Interruption of the suction effect of the striking mechanism.
- the valve is below a predetermined frequency of movement of the drive piston can be opened so that a communicating connection via the idle air duct exists between the cavity and the compensation space.
- the sensor device for detecting the movement frequency of the drive piston in such a way that they also have a movement parameter can detect that can not be directly assigned to the drive piston is. Then the sensor device is, for. B. able to move frequency of the drive piston by detecting the speed of the Determine drive piston driving crankshaft.
- the valve is thus dependent in a preferred embodiment from a signal from a speed sensor detecting the speed of the crankshaft can be opened and closed.
- the speed sensor is also one on the crankshaft arranged, movable centrifugal force weight to view the valve is controllable, the valve depending on a position of the Centrifugal weight can be opened and closed.
- a additional idling device is provided with which regardless of the frequency of movement of the drive piston or the speed of the crankshaft Cavity in communicating connection with the compensation space is when the percussion piston slides out by one of it Tool from a housing of the hammer and / or hammer drill reaches a front axial position serving as an idle position.
- the air spring hammer mechanism is independent of the motion frequency or speed-dependent idle operation described above enters an idle state.
- this air spring hammer mechanism exist therefore two ways to achieve idle: Firstly idle is automatically set when the movement frequency of the Drive piston or the speed of the crankshaft below the predetermined Value falls.
- the air spring hammer mechanism also works independently of which in the idle state when the operator removes the tool from the workpiece Stone lifts off and the tool accordingly can slide out of the hammer housing.
- the air spring hammer mechanism according to the invention can with different design principles be realized, for. B. in the so-called hollow club impact mechanism, where the drive piston is in a hollow area of the Percussion piston moves, in a hollow piston impact mechanism, in which the drive piston has a hollow area in which the percussion piston is axially is movably received or in a pipe impact mechanism, in which the Percussion piston and the drive piston essentially the same diameter have and are performed together in a percussion tube.
- Fig. 1 shows a section through an air spring hammer mechanism according to the invention in field operation.
- a crankshaft 1 drives a drive piston 3 axially via a connecting rod 2 and forth.
- the drive piston 3 is guided in a percussion piston 4, which in turn axially movable back and forth in a tubular striking mechanism housing 5 is.
- Such an air spring hammer mechanism is also called a hollow hammer mechanism referred to and is known per se.
- the drive piston 3 moves in the impact piston 4 and forth, whereby in a between the drive piston 3 and the percussion piston 4 trained cavity 6 an air spring is built.
- the air in Cavity 6 compressed.
- the energy of the air compressed as an air spring is delivered to the percussion piston 4 and also drives it forward on a schematically illustrated shaft 7 of a chisel tool.
- the shaft 7 can also be a not shown, but known per se
- the striking piston 4 acts on the striker.
- the cavity 6 is via an idle opening 8, one on the inside of the Percussion mechanism housing 5 formed annular groove 9 and a channel 10 with a serving as compensation chamber crank chamber 11.
- the crankcase 11 essentially describes the space in which the crankshaft 1 is movable with the connecting rod 2 and the drive piston 3.
- the idle opening 8, the annular groove 9 and the channel 10 together form one Idle air channel.
- a valve 12 is arranged, the is integrally coupled to a centrifugal weight 13.
- the valve 12 is together with the centrifugal weight 13 against the action of a stop 14 supported spring 15 with respect to the crankshaft 1 radially in a guide 16 mobile.
- Fig. 1 shows the impact operation of the air spring hammer mechanism in which the crankshaft 1 with the operating speed of an internal combustion engine, not shown or - if between the internal combustion engine and the crankshaft 1 Gearbox is arranged - with a corresponding to the operating speed Speed is driven. Due to the flyweight 13 and possibly centrifugal force acting on the valve 12 also becomes the valve 12 together with the centrifugal weight 13 against the action of the spring 15 in the Guide 16 held radially outward in the position shown in Fig. 1. The channel 10 is closed by the valve 12.
- Fig. 2 shows the same air spring hammer mechanism as Fig. 1, but in idle mode.
- the centrifugal weight 13 also serves strictly as a speed sensor, since it detects a change in speed by moving its radial position.
- the shift in the radial position is in turn to be regarded as a signal depending on which one integrally connected to the centrifugal weight 13 Valve 12 is opened or closed.
- the speed of the crankshaft 1 represents in the embodiment described above is the criterion according to which the frequency of movement of the drive piston 3 is determined. Instead of crankshaft speed, however, could also the speed of the drive motor, not shown, by the Flyweight 13 are detected.
- crankshaft 1 instead of crankshaft 1, it is possible to drive piston 3 by others Drive mechanisms, such as. B. a swashplate in oscillating rear and bring float.
- valve 12 and centrifugal weight 13th depending on the crankshaft speed with the air spring hammer mechanism 1 and 2 is comparable. It is therefore only the essentials Differences are explained.
- Fig. 3 shows a schematic section also as a hollow piston hammer mechanism designated air spring hammer mechanism according to the invention, in which by the Connecting rod 2, a hollow drive piston 20 is moved back and forth.
- the channel 10 leads to the crank chamber 11, which serves as a compensation chamber, the valve 12 with the centrifugal weight 13 in that already described above Way is interposed.
- the idle openings 22 are arranged axially to one another, so that between the cavity 23 and the opening 24 a permanent connection is ensured in each axial position of the drive piston 20.
- an opening 25 is provided which leads to another channel 26 leads, which is also in communication with the crankcase 11 stands.
- the opening 25 is of others in the drive piston 20 provided idle openings 27 can be driven over.
- Fig. 4 shows a variant of the invention, also referred to as a pipe impact mechanism Pneumatic spring hammer mechanism.
- a drive piston 30 driven by the crankshaft 1 and the connecting rod 2 is axial in a housing part also referred to as percussion tube 31 can be moved back and forth.
- the cavity is via an opening 34 and the channel 10 33 can be brought into communicating connection with the crank chamber 11, at the end of the channel 10, the valve 12 with the centrifugal weight 13 in the already described manner is arranged.
- an opening 35 is provided as an additional idling device, which leads to a further channel 36 and thus to the crank chamber 11.
- this serves additional Idle device that the striking mechanism then also in an idle state can reach when the percussion piston 32 after lifting the chisel of the rock to be worked and the corresponding sliding out Shaft 7 from the housing in its foremost, not shown in Fig. 4 Position reached. In that case, a rear edge 37 of the percussion piston slides 32 through the opening 35 and gives a connection between the cavity 33 and the channel 36 free.
- the additional idling device has the consequence that the striking mechanism too regardless of the engine or crankshaft speed in the idle state can reach.
- Fig. 5 shows an air spring hammer mechanism, which works on the same principle as that Air spring hammer mechanism of Fig. 3 works. On a new description of the mechanical interrelationships are therefore dispensed with.
- the speed sensor 40 is used to record the speed of the crankshaft 1. It can be work on known principles, such as B. magnetic, optical, inductive etc.
- the speed sensor 40 supplies a signal to a controller, not shown, the one in a connecting the cavity 23 with the crank chamber 11 Channel 42 arranged electromagnetic valve 41 depending of the determined speed value. So much for the speed of the crankshaft 1 is above a predetermined value, the valve 41 is closed and interrupts a connection between the cavity 23 and the crank chamber 11.
- the valve 41 is, for. B. with a 2/2-way valve a valve body that can be swiveled electromagnetically between two positions.
- the control opens the valve 41, so that a communicating connection between the cavity 23 via the channel 42 to the crank chamber 11 consists.
- the electronic solution shown in Fig. 5 is related to that in context with the mechanical solution presented in FIGS. 1 to 4 the advantage that the "dead spaces", i.e. H. between cavities 6, 23 and 33 and the valve 12, 41 existing space due to the smaller distance are smaller. This enables better sucking back in blow operation.
- Valves 12 41 can also other types of valves known per se, such as z. B. Piezo valves can be used.
- the sensor device instead of determining the crankshaft speed by the sensor device it is also possible to directly determine the frequency of movement of the drive piston, z. B. via a proximity sensor or the movement of the connecting rod 2 to be recorded. There are also numerous possibilities, the movement frequency of the drive piston based on the speed of the drive motor, its Ignition frequency or - if it is an electric motor - the electrical drive frequency or its current consumption.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Description
- Fig. 1
- einen schematischen Schnitt eines als "Hohlschlägerschlagwerk" ausgeführten erfindungsgemäßen Luftfederschlagwerks im Schlagbetrieb;
- Fig. 2
- das Luftfederschlagwerk von Fig. 1 im Leerlaufbetrieb;
- Fig. 3
- ein als "Hohlkolbenschlagwerk" ausgeführtes erfindungsgemäßes Luftfederschlagwerk;
- Fig. 4
- ein als "Rohrschlagwerk" ausgeführtes erfindungsgemäßes Luftfederschlagwerk; und
- Fig. 5
- ein als "Hohlkolbenschlagwerk" ausgeführtes erfindungsgemäßes Luftfederschlagwerk mit elektronisch angesteuertem Ventil.
Claims (15)
- Luftfederschlagwerk für einen Schlag- und/oder Bohrhammer, miteinem durch einen Antriebsmechanismus (1) hin- und herbewegbaren Antriebskolben (3; 20; 30);einem koaxial zu dem Antriebskolben (3; 20; 30) angeordneten und hin- und herbewegbaren Schlagkolben (4; 21; 32);einem zwischen dem Antriebskolben (3; 20; 30) und dem Schlagkolben (4; 21; 32) ausgebildeten Hohlraum (6; 23; 33) zur Aufnahme einer Luftfeder in einem Schlagbetrieb des Luftfederschlagwerks; und mit einem Leerlaufluftkanal (8, 9, 10; 22, 24; 34), über den der Hohlraum (6; 23; 33) mit einem Ausgleichsraum (11) verbunden istein in dem Leerlaufluftkanal (8, 9, 10; 22, 24; 34; 42) angeordnetes Ventil (12; 41), dessen Offen- und Schließstellung von einer Bewegungsfrequenz des Antriebskolbens (3; 20; 30) abhängt.
- Luftfederschlagwerk nach Anspruch 1, dadurch gekennzeichnet, dass das Ventil (12; 41) bei Unterschreiten einer vorbestimmten Bewegungsfrequenz des Antriebskolbens (3; 20; 30) öffenbar ist, so dass über den Leerlaufluftkanal (8, 9, 10; 24; 34) eine kommunizierende Verbindung zwischen dem Hohlraum (6; 23; 33) und dem Ausgleichsraum (11) besteht und sich das Luftfederschlagwerk in einem Leerlaufbetrieb befindet.
- Luftfederschlagwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Bewegungsfrequenz des Antriebskolbens (3; 20; 30) durch eine Sensoreinrichtung (13; 40) erfassbar ist.
- Luftfederschlagwerk nach Anspruch 3, dadurch gekennzeichnet, dass die Bewegungsfrequenz des Antriebskolbens (3; 20; 30) durch die Sensoreinrichtung (13; 40) an Hand von der Bewegungsfrequenz des Antriebskolbens äquivalenten Parametern erfassbar ist, nämlicheiner Drehzahl einer zu dem Antriebsmechanismus gehörenden und den Antriebskolben (3; 20; 30) antreibenden Taumel- oder Kurbelwelle (1);einer Drehzahl eines den Antriebsmechanismus beaufschlagenden Antriebsmotors;einer Zündfrequenz eines als Antriebsmotor dienenden Verbrennungsmotors; odereiner Stromaufnahme eines als Antriebsmotor dienenden Elektromotors.
- Luftfederschlagwerk nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Ventil (12, 41) in Abhängigkeit von einem Signal eines die Drehzahl der Kurbelwelle erfassenden, zu der Sensoreinrichtung gehörenden Drehzahlsensors (13; 40) öffen- und schließbar ist.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Ventil (12) über ein an der Kurbelwelle (1) angeordnetes, bewegliches Fliehgewicht (13) ansteuerbar ist.
- Luftfederschlagwerk nach Anspruch 6, dadurch gekennzeichnet, dass das Ventil (12) in Abhängigkeit von einer Stellung des Fliehgewichts (13) öffen- und schließbar ist.
- Luftfederschlagwerk nach einem Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Ausgleichsraum ein der Kurbelwelle (1) zugeordneter Kurbelraum (11) oder die Umgebung des Luftfederschlagwerks ist.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine zusätzliche Leerlaufeinrichtung (18, 19, 25, 26; 35, 36) vorgesehen ist, mit der unabhängig von der Bewegungsfrequenz des Antriebskolbens (3; 20; 30) der Hohlraum (6, 23; 33) mit dem Ausgleichsraum (11) oder einem anderen Ausgleichsraum in kommunizierende Verbindung bringbar ist, wenn der Schlagkolben (4; 21; 32) durch Herausgleiten eines von ihm beaufschlagten Werkzeugs aus einem Gehäuse des Schlag- und/oder Bohrhammers in eine als Leerlaufstellung dienende, vordere Axialstellung gelangt ist, so dass sich unabhängig von dem bewegungsfrequenzabhängigen Leerlaufbetrieb ein Leerlaufzustand einstellt.
- Luftfederschlagwerk nach Anspruch 9, dadurch gekennzeichnet, dass die zusätzliche Leerlaufeinrichtung wenigstens eine eine Seitenwand des Antriebskolbens (3; 20; 30) oder des Schlagkolbens (4; 21; 32) durchdringende Leerlauföffnung (25; 35) aufweist.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Schlagkolben (4) wenigstens einen hohlen Bereich aufweist, in dem der Antriebskolben (3) axial bewegbar aufgenommen ist.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Antriebskolben (20) wenigstens einen hohlen Bereich aufweist, in dem der Schlagkolben (21) axial bewegbar aufgenommen ist.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass ein Schlagwerksrohr (31) vorgesehen ist, in dem der Schlagkolben (32) und der Antriebskolben (30) axial bewegbar geführt sind.
- Luftfederschlagwerk nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die den Antriebskolben (3; 20; 30) antreibende Kurbelwelle (1) von einem Verbrennungsmotor antreibbar ist.
- Luftfederschlagwerk nach Anspruch 14, dadurch gekennzeichnet, dass die vorbestimmte Bewegungsfrequenz des Antriebskolbens (3; 20; 30) im wesentlichen einer Leerlaufdrehzahl des Verbrennungsmotors entspricht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10111717A DE10111717C1 (de) | 2001-03-12 | 2001-03-12 | Luftfederschlagwerk mit bewegungsfrequenzgesteuertem Leerlaufzustand |
DE10111717 | 2001-03-12 | ||
PCT/EP2002/002657 WO2002072315A1 (de) | 2001-03-12 | 2002-03-11 | Luftfederschlagwerk mit bewegungsfrequenzgesteuertem leerlaufzustand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1368160A1 EP1368160A1 (de) | 2003-12-10 |
EP1368160B1 true EP1368160B1 (de) | 2004-10-20 |
Family
ID=7677090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02712942A Expired - Lifetime EP1368160B1 (de) | 2001-03-12 | 2002-03-11 | Luftfederschlagwerk mit bewegungsfrequenzgesteuertem leerlaufzustand |
Country Status (6)
Country | Link |
---|---|
US (1) | US6938704B2 (de) |
EP (1) | EP1368160B1 (de) |
JP (1) | JP4124655B2 (de) |
DE (2) | DE10111717C1 (de) |
ES (1) | ES2227447T3 (de) |
WO (1) | WO2002072315A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10145464C2 (de) * | 2001-09-14 | 2003-08-28 | Wacker Construction Equipment | Bohr- und/oder Schlaghammer mit anpressdruckabhängiger Leerlaufsteuerung |
DE10333799B3 (de) * | 2003-07-24 | 2005-02-17 | Wacker Construction Equipment Ag | Hohlkolbenschlagwerk mit Luftausgleichs- und Leerlauföffnung |
US7140450B2 (en) * | 2004-10-18 | 2006-11-28 | Battelle Energy Alliance, Llc | Percussion tool |
GB0428210D0 (en) * | 2004-12-23 | 2005-01-26 | Black & Decker Inc | Mode change mechanism |
DE102005028918A1 (de) * | 2005-06-22 | 2006-12-28 | Wacker Construction Equipment Ag | Bohr- und/oder Schlaghammer mit Leerlaufsteuerung |
DE102005030340B3 (de) * | 2005-06-29 | 2007-01-04 | Wacker Construction Equipment Ag | Schlagwerk mit elektrodynamischem Linearantrieb |
DE102007000488A1 (de) * | 2007-09-12 | 2009-03-19 | Hilti Aktiengesellschaft | Handwerkzeugmaschine mit Luftfederschlagswerk, Linearmotor und Steuerverfahren |
SE531860C2 (sv) * | 2007-12-21 | 2009-08-25 | Atlas Copco Rock Drills Ab | Impulsalstrande anordning för inducering av en stötvåg i ett verktyg samt bergborrningsrigg innefattande sådan anordning |
JP5290666B2 (ja) * | 2008-08-29 | 2013-09-18 | 株式会社マキタ | 打撃工具 |
US8328835B2 (en) * | 2008-12-08 | 2012-12-11 | Bausch & Lomb Incorporated | System for operating and controlling a pneumatically driven vitrectomy probe |
US8636081B2 (en) | 2011-12-15 | 2014-01-28 | Milwaukee Electric Tool Corporation | Rotary hammer |
US8733468B2 (en) * | 2010-12-02 | 2014-05-27 | Caterpillar Inc. | Sleeve/liner assembly and hydraulic hammer using same |
DE102012208902A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Schlagwerkeinheit |
DE102012208913A1 (de) | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Schlagwerkeinheit |
EP2821183B1 (de) | 2013-07-05 | 2017-06-21 | Black & Decker Inc. | Bohrhammer |
CA3146951A1 (en) | 2014-03-27 | 2015-10-01 | Techtronic Power Tools Technology Limited | Powered fastener driver and operating method thereof |
US10538892B2 (en) * | 2016-06-30 | 2020-01-21 | American Piledriving Equipment, Inc. | Hydraulic impact hammer systems and methods |
CN213259295U (zh) | 2017-10-20 | 2021-05-25 | 米沃奇电动工具公司 | 用于通过凿子在工件上执行开凿操作的冲击工具 |
US11059155B2 (en) | 2018-01-26 | 2021-07-13 | Milwaukee Electric Tool Corporation | Percussion tool |
US11959529B1 (en) * | 2023-08-14 | 2024-04-16 | Alfred Franklin Nibecker | Allow air springs to be self-charging |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2641070A1 (de) * | 1976-09-11 | 1978-03-16 | Bosch Gmbh Robert | Motorisch angetriebener schlaghammer mit luftfederung |
EP0876880A2 (de) * | 1997-04-07 | 1998-11-11 | HILTI Aktiengesellschaft | Bohr- und/oder Meisselgerät |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3161242A (en) * | 1960-05-31 | 1964-12-15 | Skil Corp | Rotary-hammer devices and tool element accessories therefor |
GB1113297A (en) | 1966-03-01 | 1968-05-08 | Rockwell Mfg Co | Improvement in power driven rotary tools |
SE319134B (de) * | 1968-05-08 | 1969-12-22 | Atlas Copco Ab | |
US3835935A (en) * | 1973-03-19 | 1974-09-17 | Black & Decker Mfg Co | Idling system for power hammer |
US3913633A (en) * | 1974-10-21 | 1975-10-21 | Weil Mclain Company Inc | Liquid dispensing and vapor recovery system |
US4201269A (en) * | 1977-01-24 | 1980-05-06 | Ross Frederick W | Impact device with linear single acting air spring |
US4759260A (en) * | 1978-05-17 | 1988-07-26 | Lew Yon S | Super reliable air-spring return air cylinder |
DE2832169A1 (de) * | 1978-07-21 | 1980-01-31 | Hilti Ag | Motorisch betriebener bohrhammer |
DE3304916A1 (de) * | 1983-02-12 | 1984-08-16 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrhammer |
GB2165279B (en) * | 1984-10-03 | 1987-12-23 | Inst Gornogo Dela Sibirskogo O | Air-operated reversible percussive action machine |
EP0303651B2 (de) * | 1987-03-05 | 1999-12-01 | Robert Bosch Gmbh | Verfahren zum unterbrechen der antriebstätigkeit, insbesondere der schlag- und/oder drehantriebstätigkeit, einer handwerkzeugmaschine |
US4828046A (en) * | 1988-04-28 | 1989-05-09 | Vladimir Pyatov | Vacuum-compression type percussion power tool with an auxiliary chamber |
GB9524180D0 (en) | 1995-11-27 | 1996-01-31 | Black & Decker Inc | Hammer mechanism |
US6043623A (en) * | 1998-09-26 | 2000-03-28 | Bausch & Lomb Surgical, Inc. | Current compensation system for driving electric motor |
-
2001
- 2001-03-12 DE DE10111717A patent/DE10111717C1/de not_active Expired - Fee Related
-
2002
- 2002-03-11 DE DE50201361T patent/DE50201361D1/de not_active Expired - Lifetime
- 2002-03-11 US US10/467,289 patent/US6938704B2/en not_active Expired - Fee Related
- 2002-03-11 JP JP2002571265A patent/JP4124655B2/ja not_active Expired - Fee Related
- 2002-03-11 EP EP02712942A patent/EP1368160B1/de not_active Expired - Lifetime
- 2002-03-11 ES ES02712942T patent/ES2227447T3/es not_active Expired - Lifetime
- 2002-03-11 WO PCT/EP2002/002657 patent/WO2002072315A1/de active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2641070A1 (de) * | 1976-09-11 | 1978-03-16 | Bosch Gmbh Robert | Motorisch angetriebener schlaghammer mit luftfederung |
EP0876880A2 (de) * | 1997-04-07 | 1998-11-11 | HILTI Aktiengesellschaft | Bohr- und/oder Meisselgerät |
Also Published As
Publication number | Publication date |
---|---|
DE10111717C1 (de) | 2002-10-24 |
JP2004521756A (ja) | 2004-07-22 |
DE50201361D1 (de) | 2004-11-25 |
WO2002072315A1 (de) | 2002-09-19 |
US20040065455A1 (en) | 2004-04-08 |
ES2227447T3 (es) | 2005-04-01 |
JP4124655B2 (ja) | 2008-07-23 |
US6938704B2 (en) | 2005-09-06 |
EP1368160A1 (de) | 2003-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1368160B1 (de) | Luftfederschlagwerk mit bewegungsfrequenzgesteuertem leerlaufzustand | |
EP1425138B1 (de) | Bohr- und/oder schlaghammer mit anpressdruckabhängiger leerlaufsteuerung | |
EP1893388B1 (de) | Bohr- und/ oder schlaghammer mit leerlaufsteuerung | |
DE19843642B4 (de) | Luftfederschlagwerk mit Rückholluftfeder | |
EP1910038B1 (de) | Bohr- und/oder schlaghammer mit linearantrieb und luftkühlung | |
EP2653270B1 (de) | Handwerkzeugmaschine | |
DE10333799B3 (de) | Hohlkolbenschlagwerk mit Luftausgleichs- und Leerlauföffnung | |
EP3389933B1 (de) | Schlagende handwerkzeugmaschine | |
DE19828426C2 (de) | Antriebskolben mit geringer Wandstärke für ein Luftfederschlagwerk | |
EP1261459B1 (de) | Luftfederschlagwerk mit hohlem schlagkolben | |
EP1355764B1 (de) | Luftfederschlagwerk mit kurz bauendem antriebskolben | |
EP3389932B1 (de) | Schlagende handwerkzeugmaschine | |
EP3389934B1 (de) | Schlagende handwerkzeugmaschine | |
DE19843645C1 (de) | Luftfederschlagwerk mit Leerlaufsteuerung | |
DE3315145C2 (de) | ||
DE1814006C (de) | Schlaggerät, bei welchem eine Schlagvorrichtung durch einen motorisch angetriebenen Kurbeltrieb betätigt wird | |
EP2894008A1 (de) | Schlagwerkseinheit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030630 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE ES IT LI SE |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE ES IT LI SE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50201361 Country of ref document: DE Date of ref document: 20041125 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2227447 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050721 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: WACKER CONSTRUCTION EQUIPMENT AG Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: WACKER NEUSON SE Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PUE Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG Free format text: WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON PRODUKTION GMBH & CO. KG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: WACKER NEUSON PRODUKTION GMBH & CO.KG Effective date: 20120208 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50201361 Country of ref document: DE Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50201361 Country of ref document: DE Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE Effective date: 20120326 Ref country code: DE Ref legal event code: R081 Ref document number: 50201361 Country of ref document: DE Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE Free format text: FORMER OWNER: WACKER NEUSON SE, 80809 MUENCHEN, DE Effective date: 20120326 Ref country code: DE Ref legal event code: R082 Ref document number: 50201361 Country of ref document: DE Representative=s name: MUELLER HOFFMANN & PARTNER PATENTANWAELTE MBB, DE Effective date: 20120326 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120324 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20130319 Year of fee payment: 12 Ref country code: ES Payment date: 20130320 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130311 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140331 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20150428 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20150324 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140312 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160312 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170327 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50201361 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181002 |