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Patent Searching and Data


Matches 401 - 450 out of 702

Document Document Title
JP2003336613
To provide a tinker prevention screw capable of preventing connection by a conventional general screw driver to certainly prevent the bolting work, to provide a screw driver bit capable of easily and rapidly accomplishing connection to t...  
JP2003334767
To provide a tool part attachable-detachable driver having a simple structure, reduced in manufacturing cost, surely gripping a tool part, and surely performing the attaching-detaching work of a screw.This tool part attachable-detachable...  
JP2003326472
To provide a screwdriver bit closely fitted to the recessed part of a screw head part and capable of efficiently transmitting a torque without causing a cam failure, and a screw suitably fitted to the screwdriver bit.A fitted part 4 at t...  
JP3490579
To simplify connection and disconnection of a tool part, to simplify structure of the side of a holder and to facilitate manufacture concerning a driver the tool part of which is devised free to connect and disconnect. A lateral hole 9 i...  
JP2003311636
To provide a driver bit constituted so as to sufficiently moderate impact in fastening by a simple machining.A bottomed hole 6 is drilled in a bit shaft 3 to form a cavity part 3a, so that the impact received in the completion of fasteni...  
JP2003311637
To provide a screw holding driver bit and a combination with a screw that can effectively prevent a come-out phenomenon and be manufactured in a simple constitution at low cost by improving a structure of a blade of the driver bit, alway...  
JP2003285276
To provide a screwdriver which can be carried easily and prevents the loss of a replaced point.The screwdriver comprises a cylindrical case 7 having a housing the inside thereof and an opening 9 at one end and an opening 10 at the other ...  
JP2003266323
To provide a screwdriver which does not interfere with proper engagement/disengagement of a screwdriver bit with a hole for screwdriver at the head of a screw, can prevent the screwdriver bit from removing or trying to remove from the sc...  
JP2003261087
To provide a crank arm apparatus capable of effectively preventing rust and damage of a screw part.The crank arm apparatus is provided with an axle having a first end portion and a second end portion having an outer peripheral surface an...  
JP2003245862
To provide a tuning key for a drum with superior handlability, which can be used for a hexagonal or square bolt, a nut, and a hexagonal socket head bolt in a multipurpose application.The tuning key 10 comprises a socket wrench 14 having ...  
JP2003235859
To provide an apparatus for fixing a skeleton.The apparatus is composed of a screw having biological compatibility and a screwdriver to be used in combination therewith, the screw is composed of a shank with threads, a screw neck and a s...  
JP2003222115
To provide a driving hole for a screw having good bitability and accurately securing the prescribed screw tightening torque without slippage of the driver bit.An erect driven surface 13 erected with respect to the surface including the c...  
JP2003220566
To provide a jig for fixing a door knob, by which one operator can safely and simply fix a door knob temporarily fixed to a door plate in a state that the door is put on a storage rack.The storage rack 2 having a plurality of steps is fo...  
JP3448093
PURPOSE: To facilitate operations using a screwdriver in a variety of working spaces and to increase the portability of the screwdriver. CONSTITUTION: A screwdriver is provided with a control force transmission shaft 3 to one end of whic...  
JP2003165294
To solve a problem such as no taking of the conventional effect or the relaxation preventing effect of a mouthpiece against an axis due to the enlargement of the outer diameter and the inner diameter of a grip rubber through swelling, wh...  
JP2003139115
To provide a cross recessed screw easily tightened to a screw fastening torque set beforehand and used even for a relatively shallow driving recess.This engagement groove 11 forms a driving recess 10 with which a screwdriver bit 20 engag...  
JP2003130022
To prevent a screw from coming-out of a driver bit to the outside without pushing the screw.A bit fitting groove 3 capable of fitting in and pulling out an edge portion 2 of the driver bit B is provided on a screw head portion. A fitting...  
JP2003056534
To fasten a screw at a high fastening torque by suppressing damages to a fitting projection part provided in a screw member, even if the screw member is made of aluminum alloy. In a cross section which is perpendicular to a central line ...  
JP3391709
To strictly and easily set the protruded quantity of a driver bit from a threadedly engaged quantity adjusting tool that threadedly engages a screw flush with a surface to be threadedly engaged such as floor and wall surfaces. This adjus...  
JP2003013924
To provide combination of a screw and a driver bit, and a header punch for manufacturing a screw capable of effectively preventing the come out phenomenon of a driver bit, preventing a screw from being broken like conventional cases, ach...  
JP2003011071
To provide a driver bit and screw capable of preventing conventional breakage of the screw by improving the constitution of a bit tip part fitted into a cross groove in a screw head and allowing the bit tip part to apply a vertical force...  
JP2002372020
To provide a screw and a screw driver capable of preventing crushing of a screw hole. A plurality of projections 1 having the same shape tips are arranged across grooves 2 at an equal interval in the screw driver and the screw is provide...  
JP2002364618
To provide a screw part and a tightening tool for the screw part capable of tightening the screw part, using a general-purpose tightening tool, also using an exclusive tightening tool without causing its coming out. A drive shape 3 compo...  
JP2002346941
To provide a titanium alloy tool that suppresses an increase in manufacturing cost, has high hardness and wear resistance and has high toughness and elasticity, in a titanium alloy tool such as cutting pliers and a wrench manufactured by...  
JP2002346942
To retard a cam-out phenomenon in any situation at screw driving. Engaging projections 12 are provided with a rake angle inclined forward on the point side and backward on the base side in relation to an axis 14 of a shank part 11 when t...  
JP2002346841
To provide a clamping device which can quickly, easily clamp a threaded rod with repeatable high accuracy. The clamping device for clamping the threaded rod 20, which is used as an electrode for eroding a thread, so as to be fixed and no...  
JP2002337059
To provide a tool capable of performing high speed rotation for screw loosening and fastening.This tool is provided in the center thereof with a portion for attaching a core of a screw driver, and a commercially available screw driver ca...  
JP2002321160
To provide an apparatus to prevent an excessive impact from being transmitted to the mating part of the screwdriver shaft and the screw head when the screw is tightened or loosened.Concerning the shaft of the screwdriver used for screwin...  
JP2002321159
To provide an effective and comparatively multi-purpose tool for fixing a small article in a worker's handwork.Since the screwing tool for fixing a small article is so constituted that on the ring shape body 10 a part of which is chopped...  
JP2002301667
To provide a screwdriver bit with a chamfer cutter capable of improving the efficiency of chamfering and fastening work by forming a shape wherein a conical chamfer cutter 3 is attached to a cross head bit 2 at the tip part of a shaft 1 ...  
JP2002266827
To provide a screw and driver firmly fastenable even with a small rotating force and easily releasable by surely engaging the fitting groove of the screw to the fitting edge part of a driver bit even in a fine screw as a screw for eyegla...  
JP2002254331
To faciltate a view of the tip of a bit, improve workability and enable use in a restrictive place by reducing the thickness of an operating cylinder of a socket.A tip portion of a tool shaft 1 has the socket 2 to which the bit 9 is remo...  
JP2002239938
To provide a pen type screwdriver that is improved so as to be housed and stored in a pocket on an operator.The pen type screwdriver comprises a rodlike body 2 of electrically insulating material, a driver bit 3 projected in an axial dir...  
JP2002239937
To integrate various bits with a screwdriver for convenient portability, and keep the size of a grip intact for easy grip.The grip part 1 is cut open in a lower end and bored deep, and is used as a cover. A screwdriver body 3 is cut open...  
JP2002224969
To provide a screwdriver and a method for screw driving using it which can drive a screw and precisely adjust screw driving depth at the same time.This invention is related to a screwdriver which has a cylindrical holder 1, a bit holder ...  
JP2002205281
To provide a bit mounting device with a highly durable bit deflection stopper for solving the problem with low durability in such a conventional structure of a screwdriver that a rubber ring is mounted in a bit mounting hole so that a sc...  
JP2002205280
To provide a bit to be attached on a revolving tool such as an electric revolver by furnishing sufficient strength and favorable overload absorbing force.A bit body 6 is continuously provided on the revolving tool such as the electric re...  
JP2002178271
To provide a crank type screwdriver capable of speedily fastening and loosening a screw by one hand.This crank type screwdriver constitutes its characteristic feature of manufacturing a crank form made of a holding part 3 in rotating the...  
JP2002160174
To provide a screwdriver capable of setting a tip part at any angles for easy tightening and loosening of a screw in narrow space.A screwdriver tip part 1 can be changed at a screwdriver tip set part 2 and the screwdriver tip set part 2 ...  
JP2002160173
To enable easy tightening or removal of a screw having a crushed head groove or the like during or after tightening various screws, screw spikes or bolts.In a screwdriver 6 having a holding member 5 at a rear part 4 of a screwdriver shaf...  
JP3307835
To permit sure positioning even when anybody works it by a method wherein a notch, whose upper part is opened, is provided at a position opposed to the screw of connecting part of a reinforcing rib while the shaft of a driver is penetrat...  
JP3294217
To provide a portable type screwdriver for spectacles suitable for fastening of multiple nuts with different diameter. The screwdriver comprises a screwdriver main body 10 provided with paired screwdriver shaft parts 14, 15, a first cyli...  
JP3285380
PURPOSE: To develop screwing tool capable of transmitting suitable torque according to the size of a screwing tool and capable of being easily manufactured. CONSTITUTION: A screwing tool, particularly a screwdriver or a screwing bit, for...  
JP2002069568
To provide tool steel having low decarburizing properties in which ferrite decarburization is suppressed, and surface hardness and fatigue strength are improved.This tool steel having low decarburizing properties has a composition contai...  
JP2002066939
To hardly crush a central part of a Y-type slot screw into a circular cone during screwing and unscrewing by forming a wide or 120° interior angle between slots of a screw head, and increase the thickness of each projection slightly to ...  
JP3284023
PURPOSE: To make an operator dispensable with any trouble to carry around a tool such as a plier or the like separately in order to extract a driver bit of a screwdriver, and further to prevent a removed adjust sleeve from being missing....  
JP2002052475
To provide an insulated screwdriver manufacturing method, its manufacturing die and an insulated screwdriver for improving safety by minimizing metal exposed portions hardly to let short-circuit accidents happen.This manufacturing die K ...  
JP2002036131
To provide a screw tightening device capable of automatically tightening a screw in the direction inclined to the direction of the screwing axis without any defective engagement.A drive shaft 15 comprises a large diameter part 15a and a ...  
JP2002036134
To provide a screw driver device which can considerably suppress the wear of a dust-proof member, easily and rapidly be changed without requiring any special drawing-out tool, and reliably prevent the dust from reaching between a bit hol...  
JP3271868
PURPOSE: To provide a screw with recess having a high abrasion resistance to the tip of a tightening tool by inclining a surface for forming a side wall of the recess for a specific angle to an axial line of the screw, composing a star-s...  

Matches 401 - 450 out of 702