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JP2011156653A |
To exhibit an assist function even for various types of commercially available screwdrivers.A screwdriver rotation assist adapter includes: a grip portion 1 in contact with a palm; a shaft 2 rotatably installed to the grip portion 1; a f...
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JP4750315B2 |
A screw driving tool including an axially displaceable, drive spindle (5) located in the housing, a bit holder (6) having a shank (7) which releasably connects the bit holder (6) with the drive spindle (5), an axially adjustable depth st...
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JP2011140087A |
To provide a fastening tool corresponding to multiple kinds, which is capable of corresponding to fastening of multiple kinds of screws by one tool, has a simple configuration, and is convenient for storage and carrying, and also to prov...
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JP2011521188A |
The invention relates to hand tools and to threaded fasteners, and comprises a screw and corresponding screwdriver. The screw comprises a head and a threaded working end. The head slot for inserting the screwdriver is made in the form of...
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JP4729223B2 |
The invention relates to a hand tool, in particular in the form of a screwdriver or a file, comprising one or more working surfaces with a grooved profile. According to the invention, the grooves are formed by recesses which are created ...
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JP4731054B2 |
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JP3168557U |
To provide a screw driver connecting rod capable of high-speed removal of a screw bit. A main body 20 and a magnetic attraction device 30 are provided, and the main body 20 has a drive hole 21, a sliding hole 22 connected to the drive ho...
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JP2011104669A |
To provide a driver bit used also for detecting screw floating capable of deciding quality as to whether a head seat surface of a screw is surely seated on a workpiece or a part, etc when the screw is fastened.In the driver bit, a stoppe...
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JP4678786B2 |
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JP4647710B1 |
To provide a driver bit capable of reliably loosening and removing a screw even when not only an operation groove but also a corner portion of a base end portion of a fan-shaped wall is completely destroyed or deformed. A driver bit 3 ac...
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JP2011042026A |
To provide an adapter for fixing a screwdriver that can allow connection of screwdrivers sold in the market with a variety of shape, sizes, bit kinds and the like to a screwdriver with rotation assistance so as to meet preference of an i...
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JP4638640B2 |
This invention is a handtool having an elongated member and two arms rotatably attached to an end of the elongated member. The elongated member is adapted to hold a bit at an its end. The first arm can be rotated about its fixed point to...
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JP4637361B2 |
A hand tool includes a shaft and a rotatable handle that is coupled to the shaft bar by a ratchet mechanism. The disclosed ratchet mechanism provides a clockwise ratcheting action, a counterclockwise ratcheting action, and a freewheeling...
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JP4620247B2 |
A handle for hand tool, which handle includes an elongate handle body and at least two polygonal locating shanks provided on the handle body as to tool fasteners onto which commercially available inserts are fittable. The shanks include ...
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JP2011012788A |
To provide an antitheft screw which hardly gives rise to an axial deflection and eases fastening in addition to provision of the ability to prevent a screw from being cut while axially depressing the screw, and further provide fastening ...
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JP4587532B2 |
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JP2010249321A |
To provide a fastener fitted with threads having a recess to admit engagement of a driver, easily manufacturable, excellent in the strength, and with the recess being shaped so as to allow easy mounting and removal.The fastener 10 with t...
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JP4570703B2 |
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JP4567468B2 |
Disclosed is an insulated magnetic screwdriver, including a shank having a tip at an end or each end thereof and a peripheral groove formed around a central portion thereof so that the central portion of the shank has a diameter smaller ...
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JP3162962U |
To provide a hand tool storage device capable of storing a plurality of driver bits, a connector and a socket wrench and also having an anti-theft function. A hand tool storage device has a storage member 10 and a holding cover 20. Among...
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JP4546568B2 |
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JP3162610U |
To provide a hand tool having a polishing function capable of improving convenience in use and achieving an object of increasing durability and the like. A hand tool having a polishing function includes one grip body 10, a tool head 30 i...
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JP2010194619A |
To provide a screwdriver allowing a worker to adjust rotation by only a desired number of graduations easily and securely even if adjustment by an adjustment knob provided on a base is difficult.The screwdriver used to turn the adjustmen...
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JP4531367B2 |
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JP4531249B2 |
Recessed head fasteners are provided with a configuration by which the force applied by the blades of the driver to the recessed wings is applied at the radially outer regions of the wings. The wings of the fastener recess may be provide...
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JP3161507U |
To provide a quick joint structure capable of quickly entering and fixing drivers of various sizes. A quick joint structure includes a shaft body 30, a first elastic member 40, a second elastic member 40', a movable inner cylinder 50, an...
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JP4519672B2 |
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JP2010526260A |
A fastener with a recess head wherein the drive head has four lobular recess channels. Each channel comprises a first wall, a second wall, a bottom surface and a recess sidewall. The first and second walls have portions opposing each oth...
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JP4502163B2 |
A driver bit and a driving tool having a plurality of projections formed on at least one surface of the shank portion/driving portion of the bit/tool to retain the bit in a bit holder, or to retain a socket or the like on the driving too...
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JP4498411B2 |
A scissor-action screwdriver and screwdriver attachment comprises a plurality of arms pivotally attached to one another; a bias element mounted in at least one of the plurality of arms; and a sleeve slidably mounted around at least one o...
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JP4493135B2 |
A combination of a screw and a screw driver bit and a header punch for its manufacture capable of effectively preventing a come-out phenomenon of the screw driver bit by improving the structure of a groove part in a cross groove of a scr...
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JP2010137332A |
To solve such a problem that technique for a screwdriver tool with a fall-prevention mechanism capable of preventing a screw from falling is available in a conventional screwdriver tool, however, the work is hindered when a sufficient wo...
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JP2010139011A |
To allow a smooth screw tightening operation, without generating axial inclination of a screw, even when a slight deviation exists between axes of a screw driving hole and a tip part of a driver bit, when engaging those. This screw 1 is ...
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JP4482181B2 |
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JP4478152B2 |
Screwdriver comprises couplings each consisting of a locking bushing (3a, 3b), a catch bushing (4, 5) and a pressure spring (9) with a pre-tension between the couplings on a toothed casing (2). The couplings have a toothed wheel work int...
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JP3159917U |
To provide a hand-operated tool for replacing a blade body as needed, which can store a wide variety of removed screws without mixing them. A plurality of blades 2 provided with blades at one end, a plurality of blade storage portions 7 ...
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JP3159480U |
To provide a tool head having a ball-shaped connecting end, which can rotate a screw so as to have a rapid attachment / detachment rod and a certain degree of opening angle, and whose usable case is expanded as compared with a convention...
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JP2010084931A |
To provide the screw which can get the condition being hard to separate the screw driver part of a screw driver from the screw driver engaging recessed part of the screw top part and control the production cost comparatively at low and t...
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JP4451941B2 |
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JP2010052089A |
To provide a screwdriver bit and a screw which certainly prevent the occurrence of coming out of the screwdriver bit in screwing work, and can be effectively applied to a plurality of kinds of screw with different dimensions, and a combi...
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JP3156872U |
To provide a ratchet driver capable of reliably switching positions. A grip, a pedestal 20, a culm 30, a ratchet mechanism, and a direction control unit 50 are mainly included. The ratchet mechanism includes a first braking member 41, a ...
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JP3156695U |
To provide a screwdriver capable of preventing a screw from falling off from a screwdriver without attracting the screw by a magnetic force. A screw having an engaging portion 21a at the tip that engages with a head 303 of the screw 301,...
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JP4394184B2 |
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JP3156403U |
To fully transmit the rotational power of a grip to a driver shaft when the slider is not hit. A grip 2, a driver shaft 3 having a base inserted into the grip so as to be rotatable and axially movable, a strikable slider 4 inserted from ...
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JP2009291931A |
To provide a power driver mounting type bit holding device which allows an operator to discriminate each bit at a glance and to quickly and easily connect a necessary bit to a power driver.The bit holding device has a body which holds a ...
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JP3156224U |
To provide a hand tool structure which can be applied to a multi-standard connecting member without exchanging a tool head. In a hand tool structure, a main tool head is attached to the tip of a tool extension rod, and a spring, a positi...
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JP3155608U |
To provide an ultra-short wrench bit having a compact structure in which a screw screwing operation can be performed safely and surely. A screw is previously fixed to a wrench portion 1 of an ultra-short wrench bit 100. Therefore, the sc...
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JP2009269135A |
To solve problems of conventional screwdrivers used for rotating a screw must wherein when a screw with a different screw head is rotated, many screwdrivers with different bits must be prepared since a screwdriver must be changed to the ...
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JP4340158B2 |
A fastener is described having a head formed with a recess which accommodates a square head driver, symmetrical drivers, such as PHILLIPS(TM) style drivers, asymmetrical style cross head drivers, such as POZIDRIV(R) style drivers, and co...
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JP4326185B2 |
A clamping apparatus for fixing and non-rotatably clamping threaded shafts, particularly threaded shafts used as electrodes for eroding threads, comprises a hollow cylindrical shaft with a clamping sleeve member located at its front end....
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