摘要:
The invention relates to a power cutting tool comprising at least one cutting strand (12a; 12b, 12c; 12d; 12e) and at least one guide unit (14a; 14b, 14c; 14d; 14e) for guiding the cutting strand (12a; 12b, 12c; 12d; 12e). According to the invention, the power cutting tool comprises at least one cutting strand contact guard unit (16a; 16b; 16c; 16d; 16e) which has at least one cutting strand contact guard element (18a; 18b; 18c; 18d; 18e) that is movably mounted on the guide unit (14a; 14b; 14c; 14d; 14e) and that is designed to at least substantially prevent, in at least one operating position of the cutting strand contact guard element (18a; 18b; 18c; 18d; 18e), any accidental contact with the cutting strand (12a; 12b; 12c; 12d; 12e).
摘要:
The invention is based on a machine tool separating device, in particular on a handheld machine tool separating device, having at least one cutting strand (12a; 12b; 12c) and having at least one guide unit (14a; 14b; 14c), which form a self-contained system. According to the invention, the guide unit (14a; 14b; 14c) comprises at least one main guide unit element (16a; 16b; 16c) and/or at least one cutting strand holding unit (116c; 116c'), wherein at least the main guide unit element (16a; 16b; 16c) and/or the cutting strand holding unit (116c; 116c') has at least two guide surfaces (18a, 20a; 18b, 20b; 118c, 120c, 138c, 140c; 118c', 120c'), which have different alignments in relation to one another and which, when mounted, are provided to guide the cutting strand (12a; 12b; 12c).
摘要:
The invention relates to a machine tool (2), in particular a hammer drill and/or percussion hammer, comprising a housing (4) and an at least partially hollow U-shaped bow-type handle (10) with a yoke part (24) and two parallel leg parts (26, 28), which are movably and resiliently supported with respect to the housing (4) for vibration damping, and also at least one coupling element (34, 36) for synchronizing movements of the two leg parts (26, 28), which is entirely or partially accommodated in the interior of the bow-type handle (10). It is provided that, in the vicinity of the coupling element (34), the bow-type handle (10) is provided with a switch (18), and that the coupling element (34) has a recess (58) for receiving a switch housing (64) of the switch (18) that protrudes into the interior of the bow-type handle (10).
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 a sanding hand machine tool, especially a pad sander (10), comprising a plate-shaped abrasive disk support (14), on the working surface (15) of which an abrasive disk (16) is supported. The ends (17, 19) of the abrasive disk are retained on the abrasive disk support (14) by means of clamping elements (20, 23) disposed thereon. The clamping elements (20, 23) used are levers that have a swiveling axis disposed on the top surface of the abrasive disk support. On one end, said levers have a clamping jaw (22) supported on the abrasive disk support (14). According to the inventive sanding hand machine tool, the abrasive disk can be reliably clamped on the abrasive disk support and easily exchanged. For mounting the sanding hand machine tool 10), the abrasive disk (16) can be inserted between the clamping jaws (22) and the abrasive disk support (14) against an elastic pretension of the clamping jaw (22) and is secured therein against the direction of insertion to an increasing extent that is proportional to the tensile force exerted.
摘要:
The invention relates to a hand-guided jig saw machine (10) comprising a jig saw blade (33) which can be detachably clamped between two essentially parallel limbs (221, 222), at the free ends thereof, and which can be driven, especially in a reciprocative manner, by a motor (11) that is integrated in the jig saw (10). Said limbs are preferably constructed of a U-shaped frame (22), especially having a tubular shape. A transversally projecting handle (13) comprising a switch button (15) of an on-off switch is arranged on the free end of one of the limbs (221, 222). A light, compact and cost-efficient hand-guided jig saw machine can be produced by virtue of the fact that the lower limb (221) supports, especially in a base housing (12), both the motor (11) and the transmission means (114, 115, 116, 119, 67) which effect the reciprocative motion of the saw blade (33), whereby a motor shaft (1103) is coupled to a crankshaft (116) in a manner that is parallel to the limb (221). Said crankshaft is coupled via a connecting rod (67) to a flexible abutment (51, 57) for clamping the saw blade (33).
摘要:
The invention relates to a manually operated electric machine tool, especially a manually operated sawing machine, comprising a machine housing (10) with a housing head (102) and a housing shaft (101), a replaceable tool (13) and an electric drive mechanism (11) for driving the tool (13) in an oscillating back and forth movement. The aim of the invention is to provide an ergonomically defined holding position near the on/off switch (25). To this end, the housing shaft (101) is essentially bar-shaped and a narrower section (103) is provided in the transition area between the bar-shaped housing shaft (101) and the housing head (102). The on/off switch is located on the side of the housing head (102) under the shaft axis, so that when the user's hand is placed around the narrow section (103), the thumb of the holding hand rests on the control element.