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JP5396149B2 |
A fixed operating knob 28 is rotatably arranged on a chain saw body. The fixed operating knob 28 comprises a knob body 166, a tab 150, a torsion spring, and a lock member 158. The knob body 166 is rotatably attached to the chain saw body...
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JP5390304B2 |
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JP5379030B2 |
To provide a chain saw which can widen a space inside a protective member without deteriorating its appearance. The chain saw includes a blade spring 30 biasing so as to return a front guard 20 to a predetermined position P1, Pa which ar...
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JP5314496B2 |
A linear motion mechanism comprises a second rotating shaft having an external thread portion 48a at least at a part of an area in a length direction and an adjusting pin 40 having an opening 60 through which the external thread portion ...
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JP5297290B2 |
To provide a chain saw in which tension of a saw chain is adjusted by a simple operation. The chain saw includes: a chain saw body 10; a guide bar 20 that is freely attachable to and detachable from the chain saw body 10; a slide member ...
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JP5242598B2 |
The chain saw has a cutting chain (2) mounted around a driving pinion (7) and a chain guide (4) that is immobilized on a body (5) by a locking device i.e. nut (11) and threaded rod (12). A thrust device automatically moves away the guide...
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JP5227545B2 |
A sprocket cover arrangement for a hand-held chain saw has a housing and a sprocket cover that has an opening and is connected to the housing. At least one stud bolt having a first end secured to the housing and having a second end that ...
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JP5221448B2 |
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JP5210487B2 |
A handle of a hand-held working tool has a handle pipe made of a laminate with fiber-reinforced plastic material. The handle pipe is reinforced by a locally adjusted laminate structure at locations of high dynamic vibration-caused deform...
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JP2013107140A |
To provide a conduit cutting tool capable of carrying out cutting work without widening an interval between conduits even where the interval is narrow.A conduit cutting tool body 2 is installed on a conduit 1, a diamond wire saw 4 is dis...
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JP5179515B2 |
The device has a connection device to connect a nut and an operating key that includes an arm (17) made of magnetic material. The connection device is arranged such that the key is tilted with respect to the nut around a tilting axis for...
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JP2013035207A |
To improve the operability of a chain saw having a chain cover.A sprocket 14 is disposed on a housing 10 of the chain saw, a guide bar 15 is mounted freely attachably and detachably, and a saw chain 19 provided with a plurality of blade ...
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JP2013031906A |
To provide an oscillating-rotary-type electric tool in which working efficiency is enhanced.In the oscillating-rotary-type electric tool 1, an output shaft 22 rotated right and left in an oscillating fashion by the driving of a motor pro...
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JP2013031931A |
To facilitate work of attaching a vibration isolator to between a first member and a second member.An attachment part is provided on one end of a coil spring 32 and the coil spring 32 is fixed to a base by a tapping screw at this attachm...
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JP2013031958A |
To provide a portable power work machine capable of firmly fixing a machine body when starting an engine and capable of relatively easily and smoothly performing the starting of the engine by means of a recoil starter.A starting ladder 5...
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JP2013018232A |
To precisely form a cut edge such as a receiving groove and saw side, while receiving the vibration.A power saw includes: a case 20 having an engine arranged therein; a guide plate 31 erected from the case 20; chain saw teeth 32 wound ar...
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JP2012213914A |
To enable improvement in correspondence to various works, while enabling reduction of fatigue of the worker's wrist and arm when performing the delimbing work at the height, in a chain saw of a portable type such as a top handle type.A g...
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JP2012157967A |
To provide a simple portable wire saw cutting device easily handled and capable of maintaining sharpness by reciprocating the wire saw without any connection to an external power source.A power unit (3) and a rotary power switching mecha...
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JP4996702B2 |
A chain saw an operator can easily strain a saw chain is provided. In the chain saw 1, the tension of a saw chain 6 attached around the outer edge of a guiding bar 4 can be adjusted appropriately by adjusting the force transmitted to a c...
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JP2012135872A |
To provide a wire saw cutting device of a simple and handheld type which is easy to handle, is not connected to an external power source, and permits sustaining sharpness performance through reciprocating motion of a wire saw.A driving m...
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JP2012121305A |
To prevent wide-range scattering of chips in operation using a chain saw.The chain saw includes a chip scattering preventing cover provided on the outside of a saw chain so as to extend down from the lower end of a drive source. Since th...
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JP4949035B2 |
The assembly has a sub-assembly (3) constituted of lithium-ion or lithium polymer electrochemical battery (5) composed of cells (6) in series. A battery command and control module (7) is situated at close proximity to the battery. Anothe...
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JP2012096308A |
To provide a portable tool that facilitates a worker to judge whether the portable tool is in an overload condition or not independently of experience of the worker.A control unit 18 of the portable tool compares a rotation frequency of ...
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JP4898354B2 |
The invention provides a chain saw for fixing and releasing fixtion of a guide plate through a simple operation. An operation handle (15) of the chain saw is used for fixing and releasing fixtion of a guide plate (3), which is provided w...
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JP4829234B2 |
Apparatus for forming a multiplicity of thin wafers from at least two similar blocks, the apparatus comprising a supply reel (1) to supply wire, an upper pair (3a, 3b) and a lower pair (3c, 3d) of parallel spaced roller guides and a coll...
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JP4808389B2 |
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JP4788312B2 |
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JP3168301U |
To provide a mobile cutting machine capable of cutting without abnormal heating of a gas cutting device or the like, without back burning, without setting work of an apparatus, and easily moving to a site with wheels. A base plate 1 as a...
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JP3167706U |
To provide a wire-type cutting device capable of simplifying the opening / closing work of a cover and saving space. This wire type cutting device 1 has a main roll portion 10 having rolls 11 and 12 on which a wire 2 is stretched, and a ...
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JP4659326B2 |
A wire saw ( 10 ) for simultaneously slicing multiple, generally cylindrical monocrystalline ingots ( 14 ) into wafers. The wire saw includes a cutting head ( 16 ), an ingot support ( 12 ), and multiple generally parallel lengths of cutt...
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JP4645844B2 |
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JP4602679B2 |
The process involves fixing a piece (17) to be sawn on a support table (18) such that one prismatic side (17f) directed towards wires (15) forms an inclination angle (alpha , alpha ) with a working plane (XY). The magnitude of the angle ...
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JP2010260125A |
To provide a chain saw with a reduced physical burden.The chain saw 1 includes: an engine; a chain part driven by the engine; a case 31 for storing the engine; and a pair of front and rear holding parts arranged at the chain part side of...
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JP2010201613A |
To simply and firmly constitute an operation mode setter in a working machine operated by a hand.This working machine operated by the hand includes an internal combustion engine including an ignition device, and the operation mode setter...
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JP4533296B2 |
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JP2010133532A |
To provide a braking device capable of improving strength of a belt. When a kickback brake mechanism is operated, the other end side 513 of the belt 51 follows movement of one end side and moves forward, and an abutting member 7 is abutt...
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JP2010519078A |
The chainsaw has a cutting chain (2) mounted around a driving pinion and an oblonged shaped chain guide (3), and an electrical driving motor i.e. brushless direct current motor (4), for driving the chain through the pinion. The motor is ...
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JP4410931B2 |
The invention concerns a wire sawing device comprising at least a support table (35) bearing a piece to be sawed (34) urged against the set of wires layer (26, 27) two outer wire-guide rolls (10, 11) powered by motors (14, 15) and at lea...
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JP4411062B2 |
A superabrasive wire saw-wound structure includes a superabrasive wire saw (10) formed with an average diameter D and a reel (1). The superabrasive wire saw (10) includes a core wire (11), a bonding material (12) surrounding a surface of...
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JP2009255403A |
To dispense with after-treatment by cooling a wire saw and by removing a chip, without using water, and to prolong a life of the wire saw.A dry ice particle is blown at high velocity from a nozzle 21 of a dry ice blowing means 2 to the w...
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JP4248039B2 |
A guide bar for a saw chain of a motor chain saw has a single member steel plate having a center plane and a circumferential guide groove for guiding a saw chain extending in the center plane. The steel plate has a longitudinal extension...
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JP2009018359A |
To provide a chain saw capable of preventing a decrease in air blast volume caused by the clogging of a fresh air intake.A cooling fan 6 includes a hub 61, a plurality of cooling blades 65 provided along the circumference of the hub 61, ...
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JP2009000850A |
To easily form a comparatively accurate circular arc surface on a workpiece even in a general-purpose chain saw operated with a hand used in the field.The attachment S for the chain saw is detachably mounted to the chain saw C where an e...
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JP4178129B2 |
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JP4153827B2 |
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JP4140987B2 |
The saw consists of a row of wires (2) which are tensioned between at least two wire guide cylinders (4) and perform a continuous or reciprocating motion while held against the workpiece (31) to be cut, which is mounted on a support (3)....
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JP2008161973A |
To provide a saw wire and a wire saw machine capable of getting thin and small and elongating the service life or of contributing to automation of cutting work using the wire saw machine.The saw wire is provided with a wire (11) comprisi...
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JP2008120066A |
To achieve precise sawing by stably supporting a material to be cut by a guide bar and by smoothly moving the guide bar even if the surface of the material to be cut is not flat.A guiding device for chain saw has a roller 9 which rolls o...
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JP2008106805A |
To provide a vibration absorbing mechanism for a working machine providing easy assembly work and maintenance inspection by a simple composition.The vibration absorbing mechanism is provided in a chain saw 1 (the working machine) having:...
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JP4081232B2 |
A chain saw with vibration-isolating devices, capable of providing a desirable vibration-isolating effect over a wide frequency range and reducing accidental deviation from a desired cutting line in a cutting operation. The chain saw inc...
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