Abstract: An electrical tool includes a multi-stage gear transmission (10) located in the gear transmission housing (6) and having at least two axially displaceable indexing gear (42a, 42b), a shifting device (12) for shifting the gear transmission from one stage to another stage and having a shifting slide (14) linearly displaceable between different shifting positions, and at least two connection elements (32) for connecting the shifting slide (14) with respective indexing gears (42a, 42b), with the shifting slide (14) having a tracing profile (20) having two control tracks (22, 24), and the connection elements each having a first and second tracing sections (30a, 30b) to which the tracing profile (20) applies a shifting force in stages and which are arranged on opposite sides of a pivot axis (SA) of a respective connection element (32).

Abstract: A power tool includes an output member (8) projecting from the tool housing (4), a drive (6) located in the housing for rotating the output member (8), and a slip clutch (22) for transmitting torque from the drive (6) to the output member (8) and including a plurality of clutch elements (24) retained against rotation relative to the housing (4), a plurality of separate spring elements (28) for adjustable preloading the clutch elements (24) against the counter-clutch elements (51) of the control element (18) for retaining the control element (18) against rotation upon application of the torque thereto until threshold of the torque is reached, and a common support element for supporting the spring elements and movable relative to the housing (4).

Abstract: A power tool includes an output member (8) projecting from the tool housing (4), a drive (6) located in the housing for rotating the output member (8), and a slip clutch (22) for transmitting torque from the drive (6) to the output member (8) and including a plurality of clutch elements (24) retained against rotation relative to the housing (4), a plurality of separate spring elements (28) for adjustable preloading the clutch elements (24) against the counter-clutch elements (51) of the control element (18) for retaining the control element (18) against rotation upon application of the torque thereto until threshold of the torque is reached, and a common support element for supporting the spring elements and movable relative to the housing (4).

Abstract: An electrical tool includes a multi-stage gear transmission (10) located in the gear transmission housing (6) and having at least two axially displaceable indexing gear (42a, 42b), a shifting device (12) for shifting the gear transmission from one stage to another stage and having a shifting slide (14) linearly displaceable between different shifting positions, and at least two connection elements (32) for connecting the shifting slide (14) with respective indexing gears (42a, 42b), with the shifting slide (14) having a tracing profile (20) having two control tracks (22, 24), and the connection elements each having a first and second tracing sections (30a, 30b) to which the tracing profile (20) applies a shifting force in stages and which are arranged on opposite sides of a pivot axis (SA) of a respective connection element (32).

Abstract: A motor-driven hand-held tool includes a housing (4) having a switching recess (6) formed therein, an actuation member (8) displaceably arranged in the switching recess for shifting a functional unit between different functional steps, and and a functional step display arrangement having a read-out device (16) mechanically connected with the actuation member (8) and a display element (14) provided in the housing (4) for displaying an actual functional step and spaced from the switching recess (6).

Abstract: A planetary gear (7) includes a gear block (6) having at least two planetary stages (12, 14) and at least partially located in gear housing (4), and a hollow gear (16) arranged between the gear housing (4) and the gear block (6), axially displaceable in the gear housing (4), and supported against at least two support elements (30) provided on the inner surface (28) of the gear housing (4).

Abstract: A motor driven hand tool has a motor housing (6) with a main handle (8) near its rear end and an auxiliary bracket (10) spaced ahead of the main handle. The auxiliary bracket has a storage receptacle (16) for holding a plurality of tool bits. Partial sliding covers (26, 30) close the storage receptacle.

Abstract: A gear transmission assembly for an electrical power tool includes a housing (6), a multi-stage gear train (1) located in the housing and having a plurality of axially displaceable indexing gears (4a, 4b) associated with respective stages of the gear train (1) and a shift device (2) for shifting the gear train (1) from one stage to another and having a shifting slide (3) displaceable from one shift stage to another, and a plurality of springable shifting stirrups (5a, 5b) connected with the shifting slide (3) and cooperating with respective indexing gears (4a, 4b) for displacing same in response to displacement of the shifting slide (3) between shift stages.

Abstract: A hand-held power tool includes a torque cut-off device (2) for presetting a torque of the driving shaft (3) of the hand-held power tool and formed as a control device (4) having a rotatable control sleeve (5) including a control cam (6) having at least two cam sections (6a, 6b), and a control element (7) secured in the housing (1) of the power tool without a possibility of rotation but with a possibility of an axial displacement relative to a rotational axis (D) of the control sleeve (5) and having at least two probing sections (8a, 8b) cooperating with respective cam sections (6a, 6b) for presetting the torque.

Abstract: A motor driven hand tool has a motor housing (6) with a main handle (8) near its rear end and an auxiliary bracket (10) spaced ahead of the main handle. The auxiliary bracket has a storage receptacle (16) for holding a plurality of tool bits. Partial sliding covers (26, 30) close the storage receptacle.

Abstract: A motor-driven hand-held tool includes a housing (4) having a switching recess (6) formed therein, an actuation member (8) displaceably arranged in the switching recess for shifting a functional unit between different functional steps, and and a functional step display arrangement having a read-out device (16) mechanically connected with the actuation member (8) and a display element (14) provided in the housing (4) for displaying an actual functional step and spaced from the switching recess (6).

Abstract: A hand-held power tool includes a torque cut-off device (2) for presetting a torque of the driving shaft (3) of the hand-held power tool and formed as a control device (4) having a rotatable control sleeve (5) including a control cam (6) having at least two cam sections (6a, 6b), and a control element (7) secured in the housing (1) of the power tool without a possibility of rotation but with a possibility of an axial displacement relative to a rotational axis (D) of the control sleeve (5) and having at least two probing sections (8a, 8b) cooperating with respective cam sections (6a, 6b) for presetting the torque.

Abstract: A gear transmission assembly for an electrical power tool includes a housing (6), a multi-stage gear train (1) located in the housing and having a plurality of axially displaceable indexing gears (4a, 4b) associated with respective stages of the gear train (1) and a shift device (2) for shifting the gear train (1) from one stage to another and having a shifting slide (3) displaceable from one shift stage to another, and a plurality of springable shifting stirrups (5a, 5b) connected with the shifting slide (3) and cooperating with respective indexing gears (4a, 4b) for displacing same in response to displacement of the shifting slide (3) between shift stages.

Abstract: An automatic spindle arresting device for hand tools, especially for drills, drill screwdrivers, angle grinders and the like, with a latching part (50; 120), which is connected to the spindle (20) or the housing (10) so that there cannot be any mutual rotation, and which can be coupled in both direction of rotation of the spindle (20) with at least one arresting part (40; 140), which is connected with the housing (10) or the spindle (20) so that there cannot be any mutual rotation, and with a driving part (34; 110), which is disposed equiaxially to the spindle (20) and has unlocking elements, by means of which the latching part (50; 120) and the arresting part (40; 140) can be uncoupled, is characterized in that the unlocking elements are one or more control paths (38; 116), which are disposed at the driving part (34; 110) and at which one or more control cams (54; 124) of the latching part (50; 120) slide due to a rotational motion of the driving part (34; 110) in such a manner, that the latching part (50; 1

Abstract: In order to improve a reciprocating stroke drive mechanism for sabre saws, with a slide (5), with a saw blade (2) which is fastened in a detachable manner to the slide (5), with a slide carrier (7) which forms a slide guide and which is supported in a rotatable manner, a connecting link (9) which is driven in an eccentric manner by a shaft (11) of a motor for the creating of the up and down movement of the slide (5), and with a reciprocating stroke arrangement in such a way that operation of the reciprocating stroke drive mechanism that is as reliable as possible is attained with as few moving parts as possible, it is suggested that the reciprocating stroke drive mechanism include the following: A balancing mass (13) which can be moved up and down vertically with the slide (5) and a pivoting fork (19) which is mounted in a rotatable manner underneath the balancing mass (13) and the first lever arm (18) of which lies against the saw blade (2), and on the second lever arm (20) of which there is configured a sli

Abstract: In order to improve a device for the pivotable fastening of a saw base (8) to the housing (1) of a jig saw, with a fastening part (10) which is placed on the saw base (8), with a second fastening part (20) which is placed on the housing (1) of the sabre saw and which matches with the first fastening part (10), and with a connecting means (23) for the detachable connecting of the first with the second fastening part (10, 20) in such a way that an easy, quick pivoting of the saw base (8) is made possible without an additional tool and which in addition ensures a secure retention of the saw base (8) to the housing (1) of the jig saw, it is suggested that the first fastening part (10) exhibit a semi-cylindrically shaped, outwardly toothed surface (13), that the second fastening part (20) exhibit a surface which is configured in a complementary manner to the first fastening part (10) and which is in essence semi-cylindrically shaped and is inwardly toothed, and that the connecting means (23) be a screw (23) which

Abstract: An electrical hand-held device, such as a screwdriver or the like, includes an output shaft, a drive motor for driving the same, an actuating coupling for connecting the output shaft with the drive motor, a distance sensor for sensing a coupling position, and a speed controller which, in response to a signal generated by the distance sensor, controls operation of the drive motor. The controller causes the drive motor to accelerate to a high speed and maintain this speed during the screwing process when a rearward pressure is applied to the output shaft and the coupling is in its clutching position.