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WO/2016/022386A1 |
A self-charging assembly having a first side wall, a second side wall, a third sidewall, a first chamber, a second chamber, a first valve assembly, and a second valve assembly. The second side wall is disposed within the first side wall....
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WO/2016/010910A1 |
Various embodiments relate to a vibration reduction mechanism (40) for a hand operated striking tool (10). The vibration reduction mechanism (40) includes a collar coupled to a portion of a handle (30) of the hand-operated striking tool;...
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WO/2016/002818A1 |
Provided is a striking tool that does not drive a striking element in an unloaded state. The striking tool (100) has: a striking element (151); a cylinder (147) that houses the striking element (151) and moves reciprocally; an air chambe...
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WO/2015/197753A1 |
The invention relates to a hand-held power tool having a tool receptacle (2) for accommodating a tool insert (4) along a working axis (11), a motor (5), and a blocking-body coupling (21) having a quantity of blocking bodies. A sensor (27...
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WO/2015/193284A1 |
The invention relates to an impact machine (700) which is adapted to perform a hammering operation on a surface or an object to be worked upon. In particular, a vibration reduction arrangement (740) is attached to the housing (705) and c...
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WO/2015/190355A1 |
[Problem] To provide a technology for improving the usability of an impact tool. [Solution] A hammer drill (100) has a main housing (101) in which a motor housing (103) is united with a gear housing (105). An electric motor (110) is fixe...
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WO/2015/189754A1 |
The present invention relates to a pneumatic hammer or de- coring vibrator (2) for de-coring of foundry castings. The hammer (2) comprises: a jacket (3), in turn comprising: an inner chamber (32); an inlet circuit (4) for the entry of co...
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WO/2015/189755A1 |
The hammer (2) comprises: a jacket (3), in turn comprising: an inner chamber (32), an inlet circuit (4) for the entry of compressed air, and an outlet circuit (5) for the exit of compressed air. The hammer further comprises a motion mech...
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WO/2015/189757A1 |
The hammer (2) comprises a jacket (3), in turn comprising: an inner chamber (32); an inlet circuit (4) for the entry of compressed air, and an outlet circuit (5) for the exit of compressed air. The hammer comprises a motion mechanism (7)...
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WO/2015/182511A1 |
In order to suppress noise and vibration in a direction aligned with the axial direction of a rotating member and to reduce product size and improve workability, a pair of divided bodies (31) are provided between a spindle (26) and an an...
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WO/2015/182509A1 |
In order to perform optimization with respect to required target performance and to provide an electric tool of a size that allows excellent operability, this electric tool is provided with a rotary impact mechanism unit (19) which conve...
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WO/2015/182512A1 |
In order to make assembly of an impact driver more efficient while allowing sufficient mitigation of vibrations and reduction of weight to be achieved, three each of first engagement pawls (30e) and second engagement pawls (18d) for gene...
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WO/2015/182513A1 |
In order to suppress anvil wear and to improve longevity, a steel ball (40) having greater hardness than a spindle (26) or an anvil (18) is provided on the anvil (18) side of the spindle (26), a needle roller (41) having greater hardness...
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WO/2015/177010A1 |
A suction extraction device has a blower (23), a suction extraction head (26), a duct (19) from the suction extraction head (26) to the blower (23), a dust filter (24), and a collecting vessel (25) for the dust that is separated off at t...
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WO/2015/179045A1 |
An automatic shutoff system (70) for a hydraulic hammer (12) is disclosed. The automatic shutoff system includes an inlet groove (72) formed around a piston (42) associated with the hydraulic hammer and configured to receive pressurized ...
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WO/2015/169515A1 |
The hand-held power tool (1) according to the invention has a tool holder (2) for holding a tool (4) on a work axis (11) and a percussion mechanism (6) which comprises a striker (14) which is moved periodically back and forth on the work...
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WO/2015/166995A1 |
Provided is a work tool by which it is possible to ensure vibration damping effects even if a vibration-reducing mechanism is disposed to the side surface of a housing to reduce the length of the entire device. A work tool (1) having an ...
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WO/2015/161994A1 |
The portable power tool (1) according to the invention has a tool holder (2) for holding a tool (4) on a working axis (11), a motor (5) and a pneumatic percussion mechanism (6). A drive output shaft (7) is coupled to the tool holder (2) ...
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WO/2015/163414A1 |
Provided is a jackhammering operation machine with which shortened life of the shaft member or supporting member can be minimized. This jackhammering operation machine is provided with: a hammering mechanism for hammering a tip tool; a m...
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WO/2015/157245A1 |
A muffler assembly for a pneumatic power tool includes a tube member defining an interior volume. The tube member includes an upper segment and a lower segment. The upper segment defines a first diameter and includes a closed upper end t...
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WO/2015/153398A1 |
Systems and methods are described for governing and monitoring operations of tools. The systems include a registration and control computer, one or more mobile devices, and one or more tools. The tools include electronic locking provisio...
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WO/2015/145583A1 |
[Problem] To provide improved technology related to the mounting of a battery in a striking tool that is provided with a handle that is capable of movement relative to a tool main body. [Solution] A hammer drill (100) comprises a main bo...
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WO/2015/147015A1 |
[Problem] To provide efficient technology related to the mounting of an auxiliary device in a work tool comprising a handle that is capable of movement relative to a tool main body. [Solution] A hammer drill (101) comprises: a main body ...
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WO/2015/143762A1 |
A powered fastener driver (10) includes a cylinder (50) and a drive piston (54) within the cylinder (50) being acted on by a driving force resulting from a pressure differential. The powered fastener further includes a drive blade (42) c...
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WO/2015/126315A9 |
A rock drilling machine (2) which is adapted to intermittently produce shock wave pulses for transfer over a drill string (3) to a rock disintegrating drill bit (6). The rock drilling machine includes: a force setting unit (8) which is a...
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WO/2015/135916A1 |
The striker (16) is arranged in a bearing (29). The striker (16) has a lateral surface (25) and a stop surface (27) directed in the percussion direction (11). The bearing (29) has a sleeve (30) arranged coaxially with the working axis (1...
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WO/2015/134106A1 |
Striking tools are disclosed that include an aluminum head. Striking surfaces may be securely attached to the head by a bushing or other means. In this way, light weight striking tools may be made with greater durability.
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WO/2015/132474A1 |
The present invention relates to a device (100) for placing a seal (J) on a mounting (S) comprising a vibration generator (10) that includes: a main body (11); a distal portion (12), movable relative to said main body (11), onto which a ...
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WO/2015/133198A1 |
Provided is a striking tool that can stabilize the striking force during a strike regardless of the magnitude of the repelling force applied to the striking element during the previous strike. A striking tool (10) that reciprocally moves...
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WO/2015/134107A1 |
Striking tools are disclosed that include a handle and a head. Striking surfaces may be securely attached to the head. In this way, lighter weight striking tools may be made with greater durability.
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WO/2015/124459A1 |
A tool holder is provided for a rotating and chiselling portable power tool. A hollow spindle surrounds, coaxially with a working axis 10, a receiving space 17 for receiving a tool 4. The spindle 16 has at least one cutout 27 in the radi...
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WO/2015/124460A1 |
A tool holder 2 for a hand-held power tool has a tubular main body 17 and a dust cap 27. The main body 17 has an end face 19 which is adjoined by a cylindrical or prismatic outer face 36. The dust cap 27 has a sealing ring 28, a central ...
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WO/2015/124470A1 |
The hand-held power tool of the invention comprises a tool holder (2) for accommodating a tool along an operating axis (11). A pneumatic percussion mechanism (6) includes an exciter piston (13) which is periodically urged along the opera...
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WO/2015/122539A1 |
[Problem] To provide an improved technology for improving workability in a processing operation in which a work tool that is equipped with a dust collector is used. [Solution] A hammer drill (101) that is equipped with a dust collector (...
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WO/2015/122824A1 |
Damping device for a percussion device of a hydraulic rock drilling machine (1) with a striking direction (R), including a damping piston (5) for action in an axial direction against a tool, wherein the damping piston (5) exhibits a firs...
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WO/2015/115105A1 |
Provided is a hydraulic hammering device which has improved hammering efficiency and which is of low cost. A piston (200) has a valve switching groove (205) between the large-diameter sections thereof. A cylinder (100) has three control ...
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WO/2015/115106A1 |
A hydraulic hammering device which uses a scheme in which a front chamber is switched to a low-pressure circuit when a piston moves forward, wherein the occurrence of "galling" of the piston in a sliding contact portion with a front-cham...
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WO/2015/114054A1 |
The present invention relates to a pressure control system for a hydraulic apparatus. The pressure control system comprises a fluid supply line configured to carry pressurised fluid to the apparatus (7) and a fluid return line configured...
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WO/2015/106933A1 |
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 ...
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WO/2015/108936A1 |
A vibration-reducing component and an apparatus for its use. The vibration- reducing component combines an elastic member with a compression element to both resist applied forces and absorb selected vibrations. The vibration reducing com...
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WO/2015/103141A2 |
A slide and pull hammer device includes three major components, namely, a guide sleeve, a drive bar and an impact head. The drive bar is inserted within the guide sleeve. The impact head is secured within the distal end of the guide slee...
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WO/2015/093057A1 |
An electric power tool 10a has a brushless motor 31 for driving a tip tool "T", and a motor case 82 is at least partly covered by a motor housing 14c made of aluminum alloy and exposed to an outside. A control board 78 provided with a co...
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WO/2015/091112A1 |
The invention relates to a handheld power tool with a tool receiving portion for receiving a tool on a working axis (11) and with an electric motor (5). A pneumatic percussive mechanism (6) has an exciter which is moved periodically back...
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WO/2015/092875A1 |
This impact-driven tool is provided with a cylinder and a piston which is inserted in the cylinder in a slidable manner and which has a large-diameter section. The cylinder is provided with: one end chamber which is a space defined by th...
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WO/2015/086552A1 |
The invention relates to a tool holder for a rotating and chiseling hand-held machine tool, which tool holder has a tubular basic body, which surrounds a receiving space coaxially to an axis for receiving a tool, and which has at least o...
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WO/2015/086556A1 |
The invention relates to a production method for a tool holder comprising the following steps: A hollow spindle (main body) is formed. At least one elongated recess is provided in the wall. The spindle is composed of a first material, wh...
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WO/2015/082169A1 |
The invention relates to a machine tool device, in particular a handheld machine tool device, comprising at least one control and/or regulating unit (12a; 12b) for controlling and/or regulating a drive unit (14a; 14b) and comprising at l...
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WO/2015/070328A1 |
A multi-purpose impact tool includes an elongated guide bar including cylindrical top and bottom ends and an intermediate section having a polygonal cross section; an annular guide disc on a cylindrical top end of the bar, a head for mou...
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WO/2015/067517A1 |
A portable power tool has a tool holder 2 into which a tool 4 is insertable so as to be movable in a striking direction 12 on a working axis 11. A percussion mechanism 6 has a striker 14 coupled via a pneumatic chamber 17 to an exciter 1...
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WO/2015/067590A1 |
A handheld machine tool (1) has a tool receiving area (2) for receiving a chiseling tool (4) on a work axis (11), a motor (5), and a striking mechanism (6). The striking mechanism (6) contains a striker (15) which is guided on the work a...
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