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Document |
Document Title |
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8172235 |
Chuck mechanism of striking tool
Connection of a bit with two balls is enabled while high operability of attachment and detachment of the bit is maintained. A pressing ring 23 is held at the advance position together with an...
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8113296 |
Anti-rotation device for an impact tool
An anti-rotation device resists relative rotation between a shank and a tool head within which the shank is supported in an impact tool, for example a rivet gun. The anti-rotation device includes a...
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8074732 |
Discontinuous drive power tool spindle and socket interface
A discontinuous drive power tool assembly for generating rotational torque. The tool assembly includes a spindle having a first end portion configured to receive a socket. The first end portion has...
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8066290 |
Chuck
A chuck includes a hollow cylindrical sleeve (3) having at least two, opposite, rotation transmitting strip-shaped webs (4a, 4b) projecting radially inward, and at least one locking member (2)...
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8051920 |
Impact drill
An impact drill includes a housing having an accommodation chamber and a through hole extending from the accommodation chamber to the outside space, a driving mechanism mounted in the accommodation...
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7997837 |
Power tool
It is an object of the invention to provide a technique in a power tool having a detachable bit holder for preventing a bit holder from being detached from the tool body even if unexpected external...
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7832495 |
Tool retention apparatus and method
A tool assembly provided with a housing defining a chamber, and a reciprocating work tool arranged in the chamber, is disclosed. A tool retention member has an aperture through which the work tool...
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7819203 |
Striking tool
An impact force is transmitted to a tip end tool due to the changes of the air pressure within an air chamber generated by the reciprocal operation of the piston within a striker. The attachment...
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7726900 |
System for connecting two shafts in translation
A system for providing a mechanical and electrical connection between the ends of two essentially-coaxial shafts (1 and 2), whereby each shaft end includes a groove (11, 12) close to an axial end...
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7726413 |
Tool holder for a powered hammer
A tool holder for a powered hammer includes a tool holder housing. An actuator is coupled to the tool holder housing and is moveable among a range of operating positions that include a first...
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7712746 |
Chuck
A chuck, which is releasably connectable with a tool spindle (1), includes a guide sleeve (3) having a plurality of openings (4), a plurality of locking elements formed as tilt segments (5) each...
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7661484 |
Drilling hammer and/or percussive hammer having a tool-holding fixture
A device for a drilling hammer and/or percussive hammer has a tool holding fixture for holding a tool and for transmitting a torque to the tool. A component of the tool holding fixture consists of...
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7644929 |
Hand-held power tool with a replaceable tool fitting
A very easy-to-actuate, replaceable tool fitting is comprised in that at least one movably supported profiled body (15) on an output spindle (1) or on the tool fitting (11) of the hand-held power...
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7597155 |
Tool fitting, adapter and system with a tool fitting and an adapter
A tool fitting that is provided to accommodate a rotary hammer bit and/or a chisel bit (10) and an adapter (12). The tool fitting has centering elements (14, 16) for at least reducing the mobility...
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7533889 |
Fitting device for a machine tool with a tool holder, and a tool holder
A fitting device for a machine tool has a tool holder for a hand-guided machine tool, for receiving insertion tools. The tool holder forms a releasable sliding fit with a drive tube.
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7527272 |
Chuck
A chuck is described, in particular for a hammer drill or chisel hammer, having a chuck body having an insertion opening for holding a tool shank, and a locking element for axially locking the tool...
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7438139 |
Tool retention apparatus and method
A tool assembly (10), for example a hydraulic or pneumatic hammer assembly, includes a housing (11) defining a chamber (16), a removable reciprocating work tool (20) arranged in the chamber, and a...
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7413028 |
Ramming device to be assigned to a rock breaker
The ramming device comprises a ramming element to be assigned to the end of a rock breaker. The inventive device receives the shocks generated by the rock breaker and transmits them to fragments to...
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7364168 |
Device for assembling the casing and the body of a hydraulic rock-breaker
The inventive device includes a casing, inside of which the body is accommodated that has the hydraulic striking mechanism, inside of which a bush is mounted for guiding a tool. Said tool is held...
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7360606 |
Hand machine tool with a removeable tool holder
A hand power tool has a striking element via which a tool (10) in a tool holder (12) can be driven in striking fashion, which the tool holder can be detachably secured—via its body (14)—to a dri...
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7338051 |
Tool holder for a rotary hammer
A tool holder (1) for a rotary hammer which has a tube like tool holder main body (10) having a side wall formed with through holes (11) for receiving corresponding locking bodies (12) and formed...
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7325811 |
Chuck
A chuck (2) for a hand-held power tool (4), which is connected with a motor-driven spindle (6) of the power tool for joint rotation therewith, includes a locking device for securing a shaft section...
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7258349 |
Hand power tool
A hand power tool selected from the group consisting of a drill hammer and an impact hammer has an exchangeable tool holder, a guide pipe which receives the tool holder at its free end, a locking...
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7258350 |
Chuck for receiving a rotary-percussion tool
A chuck for receiving a working tool (2) rotable about a longitudinal axis (A) includes a receiving sleeve (3) having a guide surface (12) extending along the longitudinal axis (A) and at least...
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7222862 |
Tool holder
A tool holder for a power tool, in particular a drilling and/or hammering tool comprising a manually actuable sleeve (40) wherein components of the tool holder are held within the sleeve by a snap...
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7214010 |
Tool bit holder and hand power tool
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...
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7052022 |
Chuck for pneumatic hammer
A chuck for a pneumatic hammer including an insert and a pin engaged with the insert and one or more other components of the chuck, such as, for example, the nosepiece. The pin is configured to...
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7044479 |
Steel retainer for rock drill
A simple and positive drill steel retainer comprises a retainer and a latch. The retainer cannot be opened until the latch is disengaged. The latch is held in the engaged position by a spring. The...
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6854740 |
Tool mounting for a hand machine tool
The tool mount has a body (12) with means for housing a tool with grooves, whereby the body (12) is equipped with a damping mechanism (14, 16, 18, 20) with which the tool can be clamped in position...
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6820700 |
Chuck for a percussion tool
A chuck for a rotary-percussion power tool (2) and including a working tool guide (3) for receiving a shank (5) of a working tool, at least one locking member (4) for limiting an axial displacement...
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6810974 |
Quick release drill bit for down-hole drills
A retainer device (10) is provided for retaining a drill bit (12) within a percussive drill assembly casing (2). The retainer device (10) includes a generally annular body (16) having a central...
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6705409 |
Reciprocating tool having a piston retaining system
Disclosed is a reciprocating pneumatic tool including first, second and third piston retaining mechanisms for preventing the piston from freely exiting the barrel of the tool when the retaining...
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6698537 |
Bit retention system
A bit retainer for a percussion bit assembly has a bore and upper and lower lips extending into the bore. Multiple slots extend from the lower end of the retainer member to a terminal end disposed...
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6691799 |
Tool holder
A tool holder for a power tool, such as a drill hammer, a chisel hammer, and both, includes a striking mechanism for strikingly driving a tool, a base body, a drive part on which the base body is...
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6675910 |
Structure of hand tool
An improved structure of hand tool comprising a first pipe, a second pipe, a rotating sleeve, a pushing member, a pushing axle-rod and a chuck, wherein: the first pipe has thereon a...
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6669206 |
Tool holder for a rotary hammer or chisel hammer
A tool holder for a rotary hammer or chisel hammer, comprising at least one locking element, a supporting ring axially movable between a position supporting the locking element in the locked...
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6659473 |
Chuck for a percussion hand-held power tool
A chuck for a percussion hand-held power tool including a coupling sleeve (3) for receiving a working tool and having two diametrically opposite, slot-shaped, radial openings (4, 4′) in which two l...
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6651990 |
Tool holder
A tool holder, for mounting a bit formed with a groove onto a power tool, includes a tool-holding tool, an engagement member, and a resilient member. The tool-holding tube defines a bit insertion...
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6543789 |
Chuck for a boring tool
A chuck for receiving a tool shank of a boring tool and including radially displaceable engagement members (5) formlockingly engageable in the radial recesses (3) formed in the clamp region of the...
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6536780 |
Hand power tool
A hand power tool has a tool holder with a base body; a drive part; at least one locking body for connecting the base body of the tool holder with the drive part; a securing body which radially...
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6497765 |
Multi piece swivel chuck for holding conical shaped work
An improved chuck for supporting elongated work pieces having conical end portions, such as single crystal ingots used to fabricate semiconductor wafers, while such. The chuck is typically used in...
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6497418 |
Tool-bit holding device in percussion tool
A tool-bit holding device in a percussion tool includes a rotatable and axially-movable retainer sleeve for accommodating a shank of a tool bit. A lock member supported by the retainer sleeve is...
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6464234 |
Machine tool, especially a hammer drill or chisel
The machine tool, especially a hammer drill or chisel, has a rotatable and/or axially movable tool holder (10,12) for a tool (16) having a grooved shaft. The tool holder (10,12) includes a base...
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6241026 |
Rotary hammer
A tool holder attachable to a spindle of a hammer and which can receive a bit, the bit having a shank with at least one retaining groove extending along part of the shank, the retaining groove...
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6213230 |
Drilling tool especially for the rotary percussion drilling of preferably rock
A drilling tool, especially for the rotary percussion drilling of preferably rock, has a drilling body equipped toward the drilling side preferably with cutting bits, and with an axially arranged...
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6202760 |
Structure of multi-functional hand tool
An improved structure of multi-functional hand tool, wherein, a pushing axle rod is screw connected with a chuck, a pushing axle rod is screw connected with a driving rod; bearings are slipped over...
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6179300 |
Tool holder
A tool holder for coupling of rotating and striking tools with hand power tools has a coupling sleeve, a drive member connectable to a hand power tool and transmitting a drive movement, the...
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6174112 |
Tool for hand-held equipment
A tool for hand-held equipment and including a shank (2; 22; 32) with a clamping region (3; 23; 33) having a diameter (t) equal to or greater than 12 mm, at least one locking groove (4; 24; 34)...
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6158527 |
Tool of a breaking apparatus
An impact breaker has a sleeve which slidably receives an end portion of a tool. The tool is formed over its end portion with a groove extending completely around the end portion of the tool for...
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6135461 |
Chuck for drilling and chiseling tools
A chuck for drilling and chiseling tools and including a receiving sleeve at least one through-opening formed in a sleeve wall at least one locking member supported for a limited pivotal movement...
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