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Patent Searching and Data


Matches 251 - 300 out of 702

Document Document Title
WO/1988/009708
A tool comprises essentially a head (25) provided with a slot (37) in which is fixed a drive lug (23) with two pins (35). The latter (35) have cutting edges (33) for making a hole (17). When the tool is rotated, the screw (13) is driven ...  
WO/1988/004221
A hand-held multiple tool device for conveniently storing and selectively presenting a multiplicity of tools (14) pivotally connected to a tray (10), the tools (14) having a use and a storage position with respect to the tray (10). A cov...  
WO/1987/006173
An adapter for connecting a tool bit (9) to a drive device (13) which is provided with a chuck (12) and which is intended for rotating the tool bit forms a unit which is separate in relation to the drive device (13) and which is adapted ...  
WO/1986/004853
Power assisted wrenching tool (10) for the attachment of fasteners (42, 34) in loose and interference fit applications, and particularly for use with frangible fasteners (34). The improvement comprises a readily removable key (36) which ...  
WO/1985/004568
A fastener (20, 50), particularly for orthopedic use, structurally adapted to be driven into a member somewhat like a nail and to be secured therein by rotating the fastener through a predetermined angular displacement to secure threads ...  
WO/1984/004481
An improved high torque fastener (10) of the type having a screw head (14) with a generally bow-tie shaped driving slot (16) formed with undercut side walls (24) and an arcuately concave bottom wall (26) for reception of an arcuately con...  
WO/1983/003288
A bi-directional spring clutch having a cylindrical input element (2) mounted on a cylindrical output element (6), with a wrap spring (15) disposed between them. A control element (11), in the form of a cylinder, is rotatably mounted on ...  
WO/1982/000967
A rotary hand tool, such as a screwdriver comprises a handle (1) formed with a socket to receive a tool bit carrying shaft (7) with some limited axial movement. A spring (6) urges the shaft forwardly of the handle, but yields under manua...  
WO/1981/001386
The screwdriver comprises at the end of its rod a moving device (1); the rectangular blade is arranged close to the rod (6) and is rotated by a rotation motion of the handle (3). Said device (1) is, preferably, a helicoid pinion gear (1a...  
JP2013146842
To provide a screwdriver tool for removing a screw in which the tip of an operation part can be prevented from being broken when the operation part is driven in a cone-shaped damaged concave part, and furthermore, by making an operation ...  
JP2013146830
To provide a screwdriver tool for removing a screw by which the screw can be removed precisely while capturing a remainder wall remaining in an operation groove of the screw by a biting edge and a drive plane.Four rib-shaped projections ...  
JP2013128990
To solve a problem that the shape of a driver is large because a large handle part for generating a large rotational torque is needed for loosening a screw in a fixed condition, and further although there is an offset type driver it can ...  
JP2013049100
To provide a driver bit excellent in durability.The driver bit 10 includes: a pair of blade edges 12 arranged at both end sides; a body 14 which is fit into a socket of a rotating tool and receives a rotation force from the rotating tool...  
JP2013014000
To provide a drive system for a threaded fastener that achieves many of the desirable characteristics for threaded fastener drive systems with less compromise of competing characteristics than has been the case with the prior art.The spi...  
JP2013013961
To provide an L-type grip holder with a bit holder capable of easily changing a plurality of bits, high in screwing and handling performance, and executing sure screwing by a force applied during screwing.The L-type grip holder 100 with ...  
JP2013002629
To improve efficiency and robustness of screw driving work and to provide a screw that is hardly rusted by providing a set of a screw and a screwdriver having a structure where work can be performed using a single screwdriver even for sc...  
JP2012225421
To provide a bolt and a fastening tool therefor, by which attaching/detaching operation by a non-authorized person is difficult.A bolt 1 is fastened at a fixed location using a fastening tool 2. A locking groove 16a of a locking tube par...  
JP2012166298
To provide a tightening and loosening assist tool for a driver that can be easily attached to a driver of a round rod-like shaft, and can tighten or loosen a screw or a nut by a strong force even without being removed from the driver eve...  
JP2012157913
To provide a screw driver tool for removing a rusted machine screw by driving an operation edge to the slope of a damaged concave part of a machine screw so as to bite in the slope even when the damaged concave part is in a mortar state....  
JP2012131005
To provide a fastener capable of easily performing the fastening work.A cross-tip screwdriver 100 which fastens a cross-head screw by rotating the cross-head screw includes: a blade edge section 2 to be engaged to the cross-head screw; a...  
JP2012132553
To allow fastening to be performed easily as well while pressing in a shaft center direction.In an antitheft screw 1 in which a head 3 is provided at one end of a shaft part 2 formed with a male thread 2a and three locking parts 31 are f...  
JP2012056031
To provide a screwdriver tool, capable of removing dust when clogged in an engagement groove for engaging an engagement part of the screwdriver tool, which is formed on the head of a male screw, and also capable of reproducing the engage...  
JP2012011472
To provide a screw driver that needs no power source, can be manufactured at low cost, reduces the labor of a user, and adjusts the strength for screwing a screw.The screw driver includes: a string winder firmly fixed to a driver shaft; ...  
JP2011255487
To provide a lower-cost adapter for assisting screwdriver rotation.The adapter for assisting screwdriver rotation includes: a grip 1 in contact with a palm of a user's hand; a shaft 2 rotatably attached to the grip 1; a fixed part 4 atta...  
JP2011245591
To provide an air-cushion driver comfortable to grip, and capable of improving a torque transmission function.This air-cushion driver includes a movement constraint part 3 for constraining rotation and forward-and-backward motion of a ro...  
JP2011240474
To solve such a problem that a screwdriver which has structure in which a handle is provided on an upper part and the screwdriver is rotatable together with a cross-shaped chuck disposed below the handle when produced according to a part...  
JP2011177815
To enhance entire surface hardness and abrasion resistance by providing a soft core body having the hardness lower than that of a hardened layer on the inner side of the hardened layer formed on an entire bit surface by executing a plasm...  
JP2011156653
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...  
JP2011152625
To provide a driver bit which prevents occurrence of damage to a top surface of a screw head when a front end portion of the driver bit is engaged in a bit engagement groove of a thread formed on the top surface of the screw head; quickl...  
JP2011143522
To provide a driver bit capable of surely loosening a screw to remove even when not only an operation groove but also a corner part of a base end part of a fan-shaped wall are completely broken or deformed.The driver bit 3 includes a tig...  
JP2011140087
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...  
JP2011133090
To make it possible that the torque transmission of the driver bit is ensured as well as preventing the coming out of the driver bit from occurring when a driver bit loosens and fastens a cross slot screw with its head cruciately slotted...  
JP2011104669
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...  
JP2011042026
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...  
JP2011012788
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 ...  
JP2010249321
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...  
JP2010194619
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...  
JP2010084931
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...  
JP2010052089
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...  
JP2010023139
To strengthen engagement force of a cutting edge of a screwdriver relative to a vis.The screwdriver 1 in which a cutting edge 3 provided with a blade ridge part 4 engaged with a cross hole 9 of the vis 8 and a groove part 5 engaged with ...  
JP2009291931
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 ...  
JP2009269135
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 ...  
JP2009243689
To provide a screw with a bit engagement hole extensively elongating a service life of a punch forming a step part in a blade engagement groove, not causing buckling or the like of a fiber flow, and of a shape with superior biting charac...  
JP2009196082
To provide a screwdriver capable of transmitting torque by preventing removal of the screwdriver from a groove of a fastener by a cam effect.This screwdriver has a handle part and a recessed part type engaging part formed on an end of th...  
JP2009162333
To provide a screw fastening method that ensures a firmly locking function in a normal condition at a screw fastening portion and, when intentionally fastening or loosening a screw, does not hinder the fastening or loosening work.The scr...  
JP2009136977
To rotate a rotating shaft body without re-gripping a holding body by a simple configuration.This rotary tool comprises a driver shaft 2 which is vertically movably and rotatably engaged with a grip body 1 to receive the biasing force of...  
JP2009108874
To solve a problem wherein a screw hole is broken if a screw is fastened too tightly by using a screw and a screw driver of different sizes when a conventional phillips screwdriver is used for a conventional phillips screw.This invention...  
JP2009101505
To provide an offset type screwdriver without causing trouble in screwing in and loosening of a screw or the like without protruding a holder member from an end part of a grip plate, without causing problems in keeping a tool section to ...  
JP2009090438
To provide a tool in which water is prevented from intruding thereinto to provide a buoyancy.The body 1 of this tool comprises a grip 10 processed by injection-molding a plastic, a molded groove 11 formed in the top part of the grip 10, ...  
JP2009083015
To provide a tool for rotation, which can positively hold a hexagonal columnar portion of a rotated body, facilitates attachment thereto/detachment therefrom of the hexagonal columnar portion of the rotated body, and can apply sufficient...  

Matches 251 - 300 out of 702