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WO/2011/072908A1 |
The present invention relates to a power tool, comprising an electric motor (14) for driving a tool unit (10, 12), having a device (21) for generating destructive interferences in order to reduce noise occurring during operation.
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WO/2011/072907A1 |
The invention relates to a hand-power tool, in particular a drill and/or chiseling hammer, comprising a transmission (12), a machine housing (14), and an inner housing (16) arranged within the machine housing (14), said inner housing bei...
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WO/2011/064027A1 |
The invention relates to an electric tool (1) comprising a mass (51), which is provided for carrying out a counter oscillation (103) acting against a housing oscillation (100) of the electric tool (1), and a control means (54, 55, 541) b...
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WO/2011/064028A1 |
The present invention relates to an electric tool (1) having a vibratory means (58) which is provided for imparting a counteracting vibration (103) which counteracts a housing vibration (100) of the electric tool (1), wherein a vibration...
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WO/2011/058013A1 |
The invention relates to a transport cart for a pneumatic chisel hammer, having two wheels (42), a protective cage (12), and a mounting (32). The protective cage (12) has a flat base surface (22), a front face (13), a back face (14), and...
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WO/2011/057328A1 |
A machine tool bit, such as a tool for drilling, milling, reaming or tapping or the like comprising a work portion (71) and a shank (73) extending from the work portion. The shank (73) is provided with one or more regions of reduced mech...
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WO/2011/058855A1 |
An electric tool causes a drive mechanism to drive a tip tool (119, 219) to thereby cause the tip tool (119, 219) to perform predetermined work, and the drive mechanism is provided with a driving gear (138, 221) and a driven gear (139, 2...
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WO/2011/052449A1 |
Disclosed is a striking tool technology that contributes to reducing clutch sizes. The striking tool causes a tool bit (119) to perform a striking operation in the long axis direction and to perform a rotational operation about the long ...
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WO/2011/051564A1 |
A method for attaching a protective structure (7) to a feed beam (6) of a rock drilling rig, and a protective structure (7) for a rock drilling rig. The protective structure (7) is at least partly arranged around the feed beam (6) so tha...
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WO/2011/052451A1 |
Provided is a power tool which is capable of more reliably detecting excessive reaction torque acting on a tool body. More specifically, provided is a handheld power tool which causes a tip tool (119) to rotate so as to carry out a prede...
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WO/2011/052450A1 |
Provided is a striking tool which is capable of switching between operating modes while preventing excessive reaction torque from acting on a tool body. The striking tool comprises a tool body (103); a motor (111) housed in the tool body...
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WO/2011/047485A1 |
A gas-powered tool motor includes a combustion chamber with an intake valve at one end, an exhaust valve at another end, and a control plate or control valve between two portions of the combustion chamber. A piston or other positive disp...
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WO/2011/035955A1 |
The invention relates to a power tool (7) comprising a percussion assembly (8), an eccentric shaft (32) for driving the percussion assembly, and a counterweight (2) for compensating vibrations of the power tool caused in particular by th...
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WO/2011/035954A1 |
The present invention relates to an electric tool (1), comprising a striking mechanism assembly (3), which can be driven in and against a striking direction (4) in a cyclic manner, and a counter-oscillator (5) for compensating for vibrat...
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WO/2011/035956A1 |
The invention relates to a counter-oscillation mechanism (1) that is disposed in a housing in order to compensate housing vibrations on a power tool (7) especially comprising a percussion assembly (8). Said counter-oscillation mechanism ...
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WO/2011/036575A2 |
A sound attenuation mechanism made up of multiple substrate layers, including corrugated layers. The use of corrugation provides an inexpensive and manner of forming a plurality of highly effective acoustic attenuation channels throughou...
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WO/2011/029993A1 |
The invention relates to a method for stiffening a protective structure of a rock drilling rig, and a protective structure (7) of a rock drilling rig, the protective structure surrounding, at least partly, a drill rod, a rock drill or a ...
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WO/2011/029147A1 |
A moil guide having a sleeve that has an opening adapted to receive at least a portion of a linerbolt. The moil guide also has a magnetic attachment device attached to the sleeve. The magnetic attachment device is operable to selectively...
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WO/2011/031747A2 |
A Single Piezo-Actuator Rotary-Hammering (SPaRH) Drill includes a horn actuator having high power piezoelectric materials and a flexure pre-stress to increase the actuators effectiveness. The drill is a low mass, low power, compact corin...
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WO/2011/029992A1 |
The invention relates to a rock drilling unit, feed beam,and method for damping vibration in a rock drilling unit.In the rock drilling unit (3),a damping element (13) is arranged between the joint surfaces of two inter-connected componen...
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WO/2011/026683A1 |
The invention relates to a drill hammer and/or chipper hammer device having a hammer mechanism (10a; 10b; 10c; 10d) comprising a drive unit, and having a transmission unit (12a; 12b; 12c; 12d) for transmitting a drive torque from a motor...
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WO/2011/025431A1 |
Drill string components (2;18) for top hammer drilling and down-the-hole drilling for positioning between a drill rig and a drill bit including a pipe-shaped element (3;19), which is arranged for transferring only rotational movements fr...
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WO/2011/020644A1 |
The invention relates to a portable machine tool switching unit, comprising a turning knob unit (10), which has a coupling unit (12) that can be rotatably driven for coupling to at least one switching element (14), and further comprising...
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WO/2011/003646A1 |
The invention is based on a hammer-drilling and/or cutting device having an impact mechanism (24) and an intermediate shaft (36; 60; 84; 106), which are in each case mounted substantially parallel to an axial direction, and having a gear...
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WO/2011/000654A1 |
The invention relates to a hand-held power tool, in particular a rotary hammer drill with a transmission arrangement (14a; 14b), a hammer mechanism (16a; 16b) and a tool spindle (18a; 18b). It is proposed that the transmission arrangemen...
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WO/2011/001979A1 |
A working tool comprises a tool body (103), to a tip area of which a tip tool (119) can be attached, a handle (109, 211) which is connected to the tool body (103) so as to be relatively movable, and a vibration damping mechanism (171, 22...
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WO/2011/000609A1 |
The invention relates to a device (100) for reducing and/or compensating vibrations, in particular for a hand machine tool, having at least one movably mounted compensation body (102) comprising an accommodation bearing device (130) and ...
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WO/2011/000655A2 |
The invention relates to a hand-held power tool, in particular to a rotary hammer drill with a transmission arrangement (14a; 14b), a hammer mechanism (16a; 16b) and a tool spindle (18a; 18b). It is proposed that the hammer mechanism (16...
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WO/2011/002399A1 |
The present invention relates to an arrangement intended to be part of a rock drilling machine for percussive drilling, a joint in a hammer rock drill and a method to protect a rock drilling machine from corrosion, where the arrangement ...
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WO/2011/000653A1 |
The invention relates to a hand-held power tool, in particular, a rotary hammer drill with a torque setting unit (12a, 12b), a transmission arrangement (14a; 14b), a hammer mechanism (16a; 16b) and a tool spindle (18a; 18b). It is propos...
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WO/2011/000595A1 |
The invention relates to a holding device for hand machine tools, in particular a drill and/or chipping hammer holding device, having a hammer tube (10a; 10b; 10c) and at least one blocking body (12a; 12b; 12c), which, when installed, co...
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WO/2010/150185A1 |
One aspect of the invention concerns a pneumatic rock drill (10) having a cylinder (18), a least one exhaust opening (30) from the cylinder through which air is exhausted and a muffler (42) which extends around the cylinder and over the ...
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WO/2010/149474A1 |
In a hand-held power tool (100) having a housing (110) and a tool receptacle (140) which is arranged on a drive shaft (120) which is mounted rotatably in at least a first and a second ball bearing (132, 134), wherein the first ball beari...
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WO/2010/151205A1 |
The invention relates to a hand-held demolition tool (1) comprising a cylinder (2), a rear handle (6) and a flexible coupling (4) for the flexible connection of the cylinder (2) and the rear handle (6). According to the invention, the fl...
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WO/2010/147153A1 |
A working tool for performing a desired work using a motor-driven (111)　tool bit (119) comprises a first housing (103) having an end capable of holding the tool bit (119) and a cylindrical portion (105) at the other end, a second housi...
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WO/2010/140922A1 |
The invention relates to percussive tools, more specifically to hand-held pneumatic hammers. The hammer comprises a metal barrel situated in the fore part of a tool housing for securing the shank of a replaceable instrument, the dimensio...
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WO/2010/138285A2 |
A swinging weight assembly for an impact tool includes an anvil having an impact jaw that is reinforced with a circumferential flange. A hammer includes a hammer lug and a cam lug for pivoting the hammer between an engaged position in wh...
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WO/2010/136245A1 |
The invention relates to an auxiliary handle device of a hand-held power tool (10) having a tool housing (12), in particular a hammer drill tool and/or a chisel tool. It is proposed that the auxiliary handle device comprises a shell unit...
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WO/2010/133092A1 |
An internal machining method for oil passage holes of a hydraulic breaking hammer comprises the following steps: a. drilling three main oil passages in an intermediate cylinder body to required sizes; b. machining a piston hole (2) and a...
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WO/2010/128665A1 |
A technique for an impact tool for rectilinearly driving a tool bit in the longitudinal axis direction through an oscillating member, the technique further improving vibration damping properties. An impact tool comprising: a motor (111);...
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WO/2010/122539A1 |
A tool body (1) has a coupler for engagement with any of a variety of tool heads such as a spade head (3), and a hatchet head (4). A tool comprising the body (1) and a tool head (3-10) is a hammer action tool. It may be used as a fork, s...
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WO/2010/117063A1 |
Provided is a technique which contributes to the improvement of the vibration damping effect and usability of a handle in a striking tool. Specifically provided is a striking tool which linearly drives a tool bit (119) in the long axis d...
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WO/2010/114055A1 |
[Object] To provide a technique for further improving vibration reducing performance for a handle in an impact tool. [Means] An impact tool for hammering purpose having a tool bit (119) linearly driven in the axial direction comprises an...
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WO/2010/112250A1 |
The invention relates to a tool receptacle (3) of a hand tool machine (1), having a receiving opening (7) for receiving a tool which can be changed, wherein the tool is kept in the receiving opening (7) in a holding position of a locking...
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WO/2010/109071A1 |
The invention relates to a sealing arrangement in a rotating control valve of a pressure fluid-operated percussion device, to which percussion device a tool (5) is mountable movable in its longitudinal direction, the percussion device co...
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WO/2010/109073A1 |
The invention relates to a percussion device having a frame (2), a tool (5) mounted movable in its longitudinal direction, the percussion device containing a work chamber (3) having a movably mounted transmission piston (4) to compress t...
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WO2010110101A1 |
A front cover is fixed in a simple and reasonable manner. In an electric hammer (1), a ridge (34) is formed on the outer surface of a barrel (8), a groove (33) is formed in the inner surface of a front cover (31), and the ridge (34) and ...
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WO/2010/109072A1 |
The invention relates to a percussion device, to which a too! (5) is mountable movable in its longitudinal direction relative to the frame (2) of the percussion device, the percussion device containing a work chamber (3) having a transmi...
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WO2010110225A1 |
A hand-held electric tool which is provided with a tool body (103), a motor (111) contained in the tool body (103), and a grip section (109) gripped by the worker and performs, with the use of a tip tool (119) rotationally driven by the ...
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WO/2009/047185A9 |
The invention relates to an auxiliary handle device, especially for a hand-held power tool (12), comprising an auxiliary handle (14) and a damping unit (16) having at least one damping medium (18). The auxiliary handle device is characte...
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