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JP3124944 |
To cut rails of different cross section shapes by a common rail cutter by providing die parts so as to be replaceable from the upper direction within two side walls of a frame. When a handle 4 is moved downward from an A point to B point...
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JP2000291605 |
To provide a portable hydraulic machining device which allows a tool to be smoothly restored to its non-machining position from its machining position. A portable hydraulic machining device 10 supplies hydraulic oil force-fed from a hydr...
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JP2000288266 |
To perform a proper electrical insulation simply and inexpensively as much as possible without carrying out an expensive structural change with respect to an existing rescue tool. The portable rescue tool comprises a header part for supp...
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JP2000278836 |
To provide a pinching cutting tool or a cable cutter that not only can perform pinching cutting but also can be used as a cutting tool with a blade edge at an outer end. In the pinching cutting tool, a pinching cutting part 3 is provided...
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JP2000246538 |
To superiorly form a closed position of engagement members without any clearance and easily adjust edge parts after re-polishing in a parallel position by providing two engagement members connected to two parallel links by two connecting...
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JP2000233316 |
To reduce burrs formed on both cut surfaces after cutting a lightweight shape steel. A cutting tool 1 is provided with a knife blade 3, a blade receiver 2 which is placed at the forward side of the knife blade 3 to receives the knife bla...
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JP2000233314 |
To not only shear a work piece made of flat steel, but also shear a work piece such as corrugated steel or perpendicularly bent steel along a curving surface of the work piece. In a shearing machine equipped with fixed edges 16 arranged ...
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JP2000233315 |
To improve an accuracy of a cutting position of a bolt thread by a simple operation, and to always make a cut surface perpendicular to a thread axial direction. A bolt thread cutting device 1 is provided with one cutter 2 and the other c...
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JP3102939 |
PURPOSE: To provide a small and manipulatable hydraulic actuation device which may forcibly carry out the return movement of a piston rod by hydraulic pressure, and which may automatically and rapidly carry out this return movement. CONS...
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JP2000198017 |
To provide a separating cutter capable of cutting, breaking apart, separating and recovering a cylindrical body or a columnar body by one separating cutter and capable of improving workability. A separating cutter 11 is provided with a f...
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JP2000198018 |
To provide a hydraulic puncher capable of easily and smoothly performing punching wok in a portable way and stationary way and excellent in safety. In a hydraulic puncher, a punch 5 and a die 6 are attached to a head main body 2, the pun...
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JP2000176731 |
To provide a manual ratchet cutter for cutting a cable and the like, which can be manufactured simply, and can be operated conveniently.A turning handle 2 and a fixed handle 3 are provided, the fixed handle 3 has a circular arc form of f...
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JP2000170650 |
To prevent contact and collision of the advancing side edge of a slit-like inflow passage opening to the ram front end without reducing a clearance more than needs.A ram 16 reciprocating in a ram cylinder 14 is formed into an approximate...
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JP2000158228 |
To enhance the accuracy of a position where a thread part of a bolt is cut, through a simple manipulation, and to always hold the cut surface, orthogonal to the axial direction of the thread part.This bolt thread part cutting part 1 is c...
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JP2000094213 |
To easily and efficiently perform continuous work in a portable hydraulic electric reinforcing steel cutter.This hydraulic electric reinforcing steel cutter 1 is provided with an operation box 8 including a first timer 2 for optionally s...
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JP2000084727 |
To easily and surely retract a reverse rotation preventive claw and a feed claw from an external teeth part of a rotary cutting blade. This cable cutter comprises a fixed handle 1 and an oscillating handle 2, a fixed cutting blade 4 is c...
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JP11347831 |
To provide the electric cutter of lightweight shape steel which can cut off lightweight shape steel such as a joist along an opening edge by one operation and further cut even the lightweight shape steel projected to a circular opening f...
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JP11320244 |
To provide a small-sized rail cutter to cut a rod into a specified length by driving links and a die part automatically using a motor. A rail cutter has a limit switch 13 to operate with a cam 12 rotated by a motor and a cutter blade in ...
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JP11320456 |
To effectively prevent entrance of dust to the internal part of a body housing. In this seal mechanism, a packing 18 made of rubber is contained in the whole periphery of a joint part between a gear housing 3 to form a body housing 2 and...
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JP11320251 |
To make continuous cutting with simultaneous removal of burrs in the forefront part left unremoved in the first working process without requiring the operator to shift his working position forward and backward relative to a metal plate o...
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JP11285917 |
To provide a long-life inexpensive power-driven cutting tool by improving safety in case of abnormal operation. A shaft 101 is arranged in an oscillation arm 10, and a rotational cutter guard 104 is arranged beside a cutting blade so as ...
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JP11247806 |
To provide a suitable hydraulic cylinder for a power tool in hand or the like. A helical compression spring 26 is inserted in the rod side oil chamber of a hydraulic cylinder 3, and a hydraulic piston 21 is held at a head side initial po...
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JP11245177 |
To provide a hand-held tool which is small size, light weight and is high speed and high power. The hydraulic oil tank 4 of a hand-held wire cutter 1 and a differential hydraulic cylinder 3 are connected to each other by hydraulic condui...
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JP11216611 |
To provide a hydraulic metal machining device transportable in a work site and capable of performing plural kinds of machining. A hydraulic metal machining device is provided with a lower plate 2, three supports 4, 5 and 6 with the lower...
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JP11179681 |
To perform various works even when a piston stroke is varied by forming slide grooves for sliding a movable side die according to the slide of a piston head on the inside surfaces of a yoke and a latch, and providing attachable and detac...
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JP11156629 |
To provide a cutting tool which can easily and safely cut a light- weighted shape steel material. A cutting tool 1 has an operable knife blade 4 is arranged so as to rotate around a rotary center 10. The knife blade 4 has first and secon...
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JP11129113 |
To provide a lifesaving cutter with a reduced total weight, without marring the wear resistance of cutting edges, a frame and a cylinder. Cutting edges 39a, 39b are formed with a titanium alloy base metal 49 and a steel brazed to the bas...
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JP11129114 |
To miniaturize a linking structure by rotatably connecting the structure with a link rotating around the upper part of a side wall and a link connecting with a handle at a hole part having a curve part. When a handle 4 is moved clockwise...
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JP11123610 |
To safely and quickly cut a bolt without generating spark by installing a pair of cutting blades in blade installing parts on the opposed ends of a rotary body and a device body. A hydraulic hose from a hydraulic pump is connected to a c...
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JP11117904 |
To provide a power generating machine for a hydraulic system capable of damping the operating sound of a piston. Suction and discharge of a hydraulic pump 3 is performed by the reciprocating motion of a piston 4, and a supply chamber 27 ...
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JP11114852 |
To improve working efficiency by speeding up the reciprocating motion such as of a cutting work while maintaining separated state from the valve seat of a switching valve. This operating tool is provided with oil exhust ports 5 which are...
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JP11077424 |
To provide a hydraulic actuator that is easy in oil supply, oil replacement and bag attaching in manufacturing and can be manufactured with ease. This hydraulic actuator comprises at least one accomodation hole section 45 opening on the ...
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JP11077426 |
To select a blade part of a cutter at a desired angle in accordance with necessity of a cutting worker, make a leg part rise in a rear end side thereof, so as to perform work, make it high in safety, eliminate or reduce labor, make worka...
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JP11077425 |
To enable a single cutter to cut even an ACSR cable (steel reinforced- aluminum cable) or the like, attain improvement of workability. This wire cutter 1 is formed by pivotally mounting a pair of right/left cutter main units 4 having cut...
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JP11070407 |
To easily, safely, and quickly cut a grating made of a steel plate. In this cutter, when cutting blade tips 6 are opened to nip the bearing bar (b) of a grating (a), and then hydraulic pressure applied to a hydraulic cylinder 3; a pressi...
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JP10286712 |
To prevent accidents such as short and electric shock, by isolating the positive and negative cores by an insulating partition blade, and fixing both of a cutting blade to be directly brought into contact with the cores at the cutting, a...
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JP10249630 |
To provide an electrically-driven cable cutter which can shorten operating time by making the length of a circular arc smaller as much as possible, which is located at the sector gear portion at the cutting part of a rotary blade, and ca...
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JP10249631 |
To smoothly perform the return action of a second cutting blade by preventing the second cutting blade from being continuously forwarded after cutting has been done, and thereby make double cutting possible. This invention is concerned w...
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JP10235516 |
To cut rails of different cross section shapes by a common rail cutter by providing die parts so as to be replaceable from the upper direction within two side walls of a frame. When a handle 4 is moved downward from an A point to B point...
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JP2805282 |
PURPOSE: To easily and accurately position a steel bar by forming a fixed blade so as to be provided with a slit between a right and a left fixed cutting blade, and with a recessed section in a shape which is substantially complementary ...
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JP2805276 |
PURPOSE: To provide a portable steel bar cutter capable of easily and quickly retracting its cutting edge by manual operation at an crisis or in an emergency with out disassembling a cylinder device. CONSTITUTION: An electrically powered...
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JP10179950 |
To provide a tool having short length so as to store in a small place and make it easy to handle, with which bigger action force can be obtained by smaller force. A metal cutting scissors 1 are comprised of a pair of handle members 2 and...
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JP10128561 |
To provide a method to remove burrs when a wire is cold-welded with pressure. A die 6 to weld a wire with pressure is built in between a movable V block 9 and a fixed V block 10. The die comprises four die pieces, and the movable V block...
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JP10128616 |
To provide a cutting tool capable of controlling a feed amount of a cutter (blade plate). In a casing 2, a cam 6 is mounted capable of rotating with a camshaft 7 serving as the center. A cutter 20 is connected to a peripheral edge of the...
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JP10118788 |
To easily and appropriately conduct prescribed working appropriately corresponding to a various required working quantity of a work. A first piston 15 undertakes pumping function with power of a main body housing 1, a second piston 20 ha...
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JP10118991 |
To arrange a unit for working even in a narrow position, and to carry out various workings only by changing the unit for working. A pressure oil generating device 4 is driven by the electric motor 3 of a driving device 2 to generate a pr...
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JP10061802 |
To prevent the excessive increase of a pressure in a spool chamber even when an oil temperature is low and viscosity of oil is high. A spool valve device 14 comprises a spool chamber 15, a spool 16, and a spring 17. A valve element 20 is...
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JP10018964 |
To automatically adjust an ejection quantity in a fluid pump in which a piston is reciprocated by a cam, by forming a cam device by being equipped with a fixed eccentric cam whose outline is circular, a movable eccentric cam, and fixing ...
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JP09300123 |
To cause oil to be easily supplemented and also easily replaced with new one in a hydraulic operating machine in which a supplying means for supplying oil into a cylinder chamber so as to prevent occurrence of negative pressure within a ...
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JP09271849 |
To miniaturize a motor drive cutting and bending tool to cut and bend a rod of reinforcing bar, etc., with a simple composition. A reinforcing bar is cut with a moving cutting knife and a fixed cutting knife on a swing arm 21 driven with...
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