摘要:
The invention relates to a power tool device, in particular a hammer drill device and/or a chisel device, having at least one torque limiting unit (10a; 10b; 10c; 10d) that is provided for limiting a torque in a drivetrain (12a) in at least one operating state and that comprises at least two force transmission means (14a-28a, 30a-44a; 14b, 36b; 14c-28c, 30c-44c; 14d, 22d, 46d) for transmitting the torque in at least one operating state. According to the invention, the at least two force transmission means (14a-28a, 30a-44a; 14b, 36b; 14c-28c, 30c-44c; 14d, 22d, 46d) have different transmission characteristics.
摘要:
Die Erfindung bezieht sich auf einen handgeführten Drucklufthammer mit Vibrationsdämpfung, bestehend im Wesentlichen aus einem Griffkörperteil und einem in diesem geführten Arbeitszylinder mit einem Schlagkolben. Um einen handgeführten Drucklufthammer mit einfach schaltbarer Vibrationsdämpfung zu schaffen, bei welchem der (die) Handgriff(e) starr mit dem Griffkörper verbunden sind, ist erfindungsgemäß vorgesehen, dass zwischen Griffkörperteil (1) und Arbeitszylinder (2) eine mit Druckluft beaufschlagbare Dämpfungskammer (6) gebildet ist, in welcher der Arbeitszylinder (2) in Schlagrichtung des Kolbens (3) einen vergrößerten Durchmesser und derart einen Ringquerschnitt mit einer Dämpfungsfläche (21) aufweist und gegen die Schlagrichtung des Kolbens zwischen Arbeitszylinder (2) und Griffkörper (1) im Wesentlichen stirnseitig ein mit Druckluft beaufschlagbarer Verschieberaum (4) ausgeformt ist, welcher Verschieberaum (4) durch ein Schaltmittel (5) wahlweise mit Druckluft (D) beaufschlagbar oder mit der Umgebungsluft (U) verbindbar ist.
摘要:
Ein Handwerkzeuggerät (2), insbesondere in Form eines Bohr- oder Meisselhammers, weist eine Antriebsanordnung (10) zur schlagenden Beaufschlagung einer Werkzeugaufnahme (20) entlang einer Arbeitsrichtung (R), ein Aussengehäuse (8), in dem die Antriebsanordnung (10) zumindest teilweise aufgenommen ist und zwei Handgriffe (30) auf, die an voneinander abgewandten Seiten (26, 28) des Aussengehäuses (8) vorgesehen sind und die zur Verstellung einer Griffhöhe (H) gegenüber der Werkzeugaufnahme (20) in verschiedenen Positionen festlegbar sind. Es ist vorgesehen, dass die Handgriffe (30) gegenüber der Werkzeugaufnahme (20) zwischen mehreren Positionen verschiebbar gelagert und in diesen Position festlegbar sind.
摘要:
An implement comprises an internal combustion engine (1) having a throttle valve (2). At least one handle (7), the inside of which is provided with a gas lever (4) likewise in a pivotal manner, is attached to a housing (5) surrounding the internal combustion engine (1). The minimum distance between the gas lever (4) and the handle (7) is defined by a stop (9, 10). When the operator lifts the implement by the handle (7), the position of the gas lever (4) also changes. Even when the gas lever (4) is fully depressed, only a part-load position is achieved at the throttle valve (2). In this way, effective rotational speed limitation is achieved.
摘要:
A handle assembly for a power tool is described and includes a first substantially tubular body portion 210 which contains a first spring 212. A second body portion 216 is slidably mounted within first body portion 210 and contains a second spring 218. A third body portion 222 is also slidably mounted within first body portion 210. The biasing coefficient, or spring constant, of the first spring 212 is less than that of the second spring 218. The first, second and third body portions 210, 216 and 222, and first and second springs, 212 and 218, are all mounted coaxially on threaded bolt 224. In use the third body portion 222 moves within first body portion 210 in a direction towards end portion 214 and the first and softer spring 212 becomes compressed more rapidly than the second and harder spring 218. When the distance D 1 has reduced to zero, by compression of first spring 212, the rubber washer 230 engages end portion 220 of second body portion 216 and the biasing effect of first spring 212 is eliminated The biasing force of the harder second spring 218 acts alone up to a distance D 2 .
摘要:
The invention relates to a hammer device (1), in particular a manual hammer device (1), comprising a percussion mechanism (12) which is designed to carry out a percussion movement on a tool (2) in the axial direction (A). Said hammer device is characterised in that it comprises at least one percussion force storing means (15) designed to at least partially store a percussion force of the percussion mechanism (12) in the axial direction (A), and to at least partially release said force in the form of a percussion force in the opposite axial direction (B).
摘要:
The hand-held power tool has a tool holder (2) for holding a tool (4) along a working axis (12). A hammer mechanism (6) has a hammer (15) that is moved periodically along the working axis at a blow rate. A drive control (18) of the hammer mechanism (6) controls the blow rate to a set point. A mass damper (19) has an oscillating mass (21) that moves along the working axis (12) about a resting position and one or more springs (20) that drive the oscillating mass (21) back into the resting position. A calibration phase comprises the following steps: detection of an acceleration using the acceleration sensor (24); determination of a minimum of the acceleration by varying the blow rate in a range of between 90 % and 110 % of the set point; and defining of the set point at the blow rate associated with the minimum that has been determined.
摘要:
The invention relates to a handheld device (1) for driving a stator blade (19) into a blade groove (18) which is arranged on a stator blade support (17) of a turbine and which contains at least one stem element (21), having - a striking device (4) for carrying out individual hammer strikes of specifiable forces onto the stator blade (19) to be driven, - a trigger device (7) for manually triggering an individual hammer strike which is to be carried out using the striking device (4), - a detecting device for detecting the respective installation force of the stator blade (19) to be driven, said installation force being achieved with an individual hammer strike carried out using the striking device (4), - an electronic analyzing device for analyzing each installation force of the stator blade (19) to be driven, said installation force being detected using the detecting device, and - at least one signaling device for signaling the installation force of the stator blade (19) to be driven, said installation force being detected using the detecting device.