摘要:
The invention is based on a portable power tool having a vibration-damped handle (10) which has two legs (12, 14) running in the longitudinal direction (48) of the portable power tool and which is motionally coupled to its housing (28), wherein at least one lever (20, 22; 20a, 22a; 20b, 22b) oriented transversely to the longitudinal direction (48) is coupled to each of the two legs (12, 14) at an articulation point (16, 18; 16a, 18a), and wherein the levers (20, 22; 20a, 22a; 20b, 22b) are coupled to a joint region (50) lying between the two legs (12, 14) of the handle (10). It is proposed that each lever (20, 22; 20a, 22a; 20b, 22b) have a bearing point (24, 26; 24a, 20 26a; 24b, 26b) between the joint region (50) and the respective articulation point (16, 18; 16a, 18a).
摘要:
The invention relates to an additional hand grip (2) for a hand machine tool, comprising a clamp (4) for clamping the additional hand grip (2) to a part of the hand machine tool, a handlebar (6) for gripping and holding of the additional hand grip (2), and a pivot joint (8) that can be blocked, arranged between the clamp (4) and the handlebar (6). The pivot joint (8) can be blocked with an eccentric tension lever (10), which is formed by a pivotable part (24) of the handlebar (6).
摘要:
A percussion mechanism for a repetitively hammering hand power tool in the form of a rotary hammer has a striker movable axially forward and backward in a guide barrel and imparting impacts directly and without any intermediate parts to an end section of a tool bit that is insertable into the hand power tool, a device that exerts pressure on the striker, by which the striker is capable of being set into a forward motion in the direction of the tool bit, a blocking element, with which the striker is blockable in its forward motion, and the striking frequency of the striker is adjustable by controlling the blocking time of the blocking element, so that the striking frequency of the striker depends on how long the blocking element blocks the forward motion of the striker.
摘要:
A percussion mechanism for a repetitively hammering hand power tool, whose striking frequency and striking intensity are controllable independently of one another, has a striker (2), movable axially forward and backward in a guide barrel (1), and a device (5) exerting pressure on the striker (2), as a result of which the striker can be set into a forward motion in the direction of a tool bit (4) that is insertable into the hand power tool. A blocking element (10) is also provided, with which the striker (2) is blockable in its forward motion, and the striking frequency of the striker (2) is adjustable by controlling the blocking time of the blocking element (10).
摘要:
The invention relates to a hand tool machine (2), in particular a drilling and/or percussion hammer, with a housing (4) and a vibration-damped handle (10) elastically supported relative to the housing (4) with two essentially parallel legs (20, 22) and a coupling element (44 or 46) between each leg (20 or 22) and the housing (4) that is pin-jointed to the leg (20 or 22) and the housing (4). The coupling elements (44, 46) are connected to each other by a connector (48) that synchronizes the movements of the coupling elements (44, 46).
摘要:
A tool bit holder for a hand power tool has a tool bit holder body has a receiving bore for a tool bit shaft of a tool bit insert with at least one recess, a locking body snappable into place with the recess of the tool bit shaft and supported radially displaceably in the tool bit holder body; a slide sleeve supported resiliently in an axial direction and operatively connected to the locking body so that upon a motion of the slide sleeve counter to a spring force the locking body escapes out of the receiving bore, and a guide ring, wherein the locking body is caught in a first opening of the tool bit holder body and in a second opening at least partially covering the first opening, of the guide ring supported displaceably on the tool bit holder body.
摘要:
The invention is based on a power tool, in particular a hand power tool, with a drive motor (12) disposed in a housing (10) and at least one adjusting device (14, 16), which can be used to durably set at least one parameter of the drive motor (12) and/or of a transmission during an operating phase.The invention proposes that the adjusting device (14, 16) have a reset unit (18, 20), which resets the adjusting device (14, 16) to a starting position depending on at least one operating parameter.
摘要:
The invention is based on a hand power tool, in particular a drill- and/or chipping hammer, comprising a striking mechanism (10) that has a drivable pot-type piston (12) with at least one idle opening (14).It is proposed that the idle opening (14) is capable of being closed via a controllable, separate closing element (16).
摘要:
A power hammer drill includes a tool holder and an air cushion striking mechanism for driving a tool and including a striker, a reciprocating piston for displacing the striker, and an axially displaceable guide tube for guiding the piston. A device for holding the striker in a forward position thereof adjacent to the tool holder in an idling condition of the hammer drill is provided in the hammer drill. The device has a guide element fixed in the drill housing for guiding the guide tube. The guide tube has a control opening for venting the air cushion and which remains in open or closed condition dependent on axial position of the guide tube.
摘要:
The invention relates to a hand power tool, in particular a drill hammer and/or chipping hammer, comprising a hammer unit (10a; 10b) for producing a pulse in the direction of a hammer axis (12a; 12b). Said tool has an axial drive unit (14a; 14b) with a drive element (16a; 16b) and a motor unit (18a; 18b), in addition to a motor shaft (20a; 20b), which forms an angle (22a; 22b) not equal to zero with the hammer axis (12a; 12b) and which co-operates with the axial drive unit (14a; 14b) by means of a torque transmission wheel (24a; 24b) of said unit, the axial drive unit (14a; 14b) being mounted on the opposite side of the torque transmission wheel (24a; 24b) from the motor unit (18a; 18b). The driven element (16a; 16b) of the axial drive unit (14a; 14b) is mounted directly on the torque transmission wheel (24a; 24b).