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WO2001049459A1 - Lame de tournevis ou combinaison de cle et de vis - Google Patents

Lame de tournevis ou combinaison de cle et de vis Download PDF

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Publication number
WO2001049459A1
WO2001049459A1 PCT/JP2000/009200 JP0009200W WO0149459A1 WO 2001049459 A1 WO2001049459 A1 WO 2001049459A1 JP 0009200 W JP0009200 W JP 0009200W WO 0149459 A1 WO0149459 A1 WO 0149459A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
wrench
hole
polygonal
center
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2000/009200
Other languages
English (en)
Japanese (ja)
Inventor
Katsuyuki Totsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU22244/01A priority Critical patent/AU2224401A/en
Publication of WO2001049459A1 publication Critical patent/WO2001049459A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/003—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool star-shaped or multi-lobular, e.g. Torx-type, twelve-point star
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/008—Allen-type keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/108—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a Philips type bit, an Allen type bit or a socket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0053—Specially shaped nuts or heads of bolts or screws for rotations by a tool with a conical or prismatic recess for receiving a centering pin of the tool apparatus

Definitions

  • the present invention relates to a driver bit or a wrench and a screw applied to the driver bit or a wrench, for example, a screw with a hexagonal hole.
  • a driver bit with a bit tip shaped to fit this polygonal hole and this driver bit are tightly fitted.
  • the present invention relates to a driver bit or a combination of a wrench and a wrench capable of quickly and reliably achieving the mounting and dismounting of the screw or the like by always transmitting an appropriate torque.
  • FIGS. 15 and 16 show a conventional bolt having a six-ft hole at the center of the bolt head
  • FIGS. 17 (a) and (b) show the bolt ffl with the hexagonal hole
  • FIG. 18 shows a state in which the bolt is fitted with a driver bit or wrench.
  • the conventional bolt 10 shown in FIGS. 15 and 16 is provided with a hexagonal hole 12 in the bolt head 10a.
  • Each of the hexagonal holes 12 has a certain vertical wall surface 13 formed from the edge to the bolt neck 10b from the edge portion thereof, and has a gentle inclined almost circular bottom surface 14 at the bottom thereof. Are formed.
  • the conventional driver bit 20 and wrench 20 shown in (a) and (b) of FIG. 17 have a hexagonal tip blade portion that fits into the hexagonal hole 12 of the bolt 10. 22 and an extension extending as appropriate so as to conform to the shape of the vertical wall surface 13 formed from the edge of the hexagonal hole 12 toward the bolt neck 10b.
  • Blade 2 2 a It consists of a formed configuration.
  • reference numeral 23 denotes a vertical wall formed on the side surface of the tip blade 22 or the extension blade 22a. That is, the vertical wall portion 23 formed on the driver bit or wrench 20; and the vertical contact with the vertical wall 13 formed on the hexagon hole 12 of the bolt 10 described above. It is configured as follows.
  • the bolt 10 and the driver bit or the wrench 20 are fitted as shown in FIG. 18 for example.
  • the tip blade 22 and the extended blade 22 of the driver bit or wrench 20 are respectively fitted into the vertical wall surface 13 of the hexagon hole 12 and the tip blade 2 2 and extension blade 2 2 a Force abuts on vertical wall 13 of hexagonal hole 12 of bolt 10. Therefore, in this state, the predetermined torque can be transmitted to the bolt 10 by rotating the driver bit or the wrench 20. That is, it is possible to mount or remove the bolt 10 on the required bolt mounting target.
  • the hexagonal hole 12 of the bolt head 10 a is A constant vertical wall surface 13 is formed from the opening edge toward the bolt neck 10b.
  • the corresponding driver bit or wrench 20 has a portion adjacent to the ridge line of the extended blade portion 22 a than the hexagonal tip blade portion 22, and a vertical wall surface of the hexagon hole 12.
  • a vertical wall portion 23 suitable for the shape of 13 is formed. Therefore, the blades 22 and 22a of the driver bit or wrench 20 having the vertical wall portion 23 forming the hexagonal surface are connected to the bolt 10 having the vertical wall surface 13 forming the hexagonal surface.
  • the occurrence of the above-mentioned cam-out phenomenon hastens the wear of the bit or wrench tip portion, ie, the tip blade portion 22 and the extension blade portion 22a, and the wear further reduces the cam-art phenomenon. As a result, there is a problem that the damage of the hexagonal hole 12 also increases.
  • the bolt or wrench shaft is attached to the hexagonal hole 12 at the time of fitting with the bit or wrench tip. It is difficult to rotate the bolt while maintaining a state in which it is properly mounted coaxially.
  • the bolt axis and the bit or wrench are eccentric or inclined, as shown in Fig. 16 (indicated by the broken line) and Fig. It is difficult to immediately fit the tip of the driver pit or wrench 20 into the screwdriver. Not only does the cam-out phenomenon occur frequently, but also the damage at the opening edge of the hexagonal hole 12 frequently occurs. Become.
  • the inventor of the present invention has conducted intensive research and trial production, and as a result, has improved the configuration of the polygonal hole in the screw head in combination with the screw and the driver bit or wrench.
  • the cam phenomena of the bit or wrench can be effectively prevented, and the conventional screw breakage can be prevented.
  • a polygonal hole consisting of a substantially vertical wall surface is formed at the center of the screw head to a required depth, and the polygonal hole is formed from the lower edge of the vertical wall surface.
  • a polygonal inscribed circle is formed at the lower edge of the vertical wall surface of the polygonal hole that is formed in the thread head.
  • a vertical step is formed, and a conical bottom is formed from the lower edge of the vertical step toward the center of the neck.
  • a cylindrical protruding portion forming a polygonal inscribed circle is formed at the tip of the polygonal tip blade.
  • an extension blade in which the distal end surface of the cylindrical projection is formed in a conical projection, and a vertical wall portion extending vertically from the distal edge portion is formed. Section is provided.
  • the fitting base can be quickly and securely locked in the circle, and the turning operation of the bit or wrench allows the vertical wall surface of the screw polygon hole and the tip blade of the bit or wrench to rotate. It was found that the vertical wall portion extending vertically can be immediately matched, and that the cam phenomena can be reliably prevented.
  • the present inventor provided a cylindrical protrusion at the tip of the tip blade of a driver bit or wrench, and provided the cylindrical protrusion.
  • the projection is positioned at the initial stage of contact of the bit or wrench with the threaded polygonal hole. It has been ascertained that the tip blade can be quickly and accurately inserted into the polygonal hole.
  • a vertical step is provided below the vertical wall surface of the polygonal hole formed in the screw head of the screw, and the bit or the laser is formed on the conical bottom formed below the vertical step.
  • the protrusion and the recess are fitted with each other when the bit or wrench has a fitting hole with the polygonal hole of the screw. Since the bit or wrench axis and the screw axis can always be rotated on the same axis, the cam screw phenomenon can be prevented and the screw head surface can be damaged. Not only can be prevented, but also that the screw-holding function at the tip of the driver bit or wrench can be exerted by the fitting base of the projection and the recess.
  • an object of the present invention is to improve the configuration of the tip of the tip blade portion of a driver bit or wrench, thereby effectively preventing and applying the cam out phenomenon of the bit or wrench.
  • the screw holding function is exerted, so that proper and quick screw tightening work is always achieved, and work efficiency is improved.
  • One object is to provide a driver bit or wrench and screw combination that can be significantly improved. Disclosure of the invention In order to achieve the above object, a driver bit or a wrench according to the present invention is provided with a cylindrical protruding portion that forms a polygonal inscribed circle at the tip of a polygonal tip blade portion.
  • the distal end surface of the cylindrical projection is formed as a conical projection, a projection is formed at the center of the conical projection, and a vertical wall extending vertically from the tip blade is formed.
  • An extension blade is provided to form a polygonal hole consisting of a substantially vertical wall at the center of the screw head to the required depth, and a conical bottom surface pointing from the lower edge of this vertical wall to the center of the screw neck. It is characterized in that it is configured to fit a thread with a polygonal hole formed by
  • the cylindrical protruding portion formed on the tip blade portion can be formed in a parallel cylindrical shape forming a polygonal inscribed circle.
  • the projection formed at the center of the conical projection is provided with a center hole having a required depth inside the extension blade portion from the tip of the tip blade portion, and is formed of spring steel in the center hole. It can be configured by fitting a rod member.
  • the screw that fits the driver bit or wrench according to the present invention is to form a polygonal hole consisting of a substantially vertical wall in the center of the screw head to a required depth and to form a lower edge of this vertical wall.
  • the thread with the polygonal hole formed at the center of the neck of the thread is formed at the bottom of the polygonal hole.
  • a vertical step is formed to form an inscribed circle, and a conical bottom is formed from the lower edge of the straight step toward the center of the neck, and the center of the circle is formed. It is characterized in that a recess is provided in the housing.
  • the screw with a polygonal hole is a bolt with a square hole, a screw with a square hole, a bolt with a hexagonal hole, a screw with a hexagonal hole, a bolt with a modified hexagonal hole, a screw with a modified hexagonal hole.
  • it can be constituted by either a polygonal hole or a bolt with a modified polygonal hole or a screw.
  • FIG. 1 (c) is an end view of the tip of the wrench or one bit of the driver of FIG. 1 (a).
  • FIG. 2 is a cross-sectional side view of an essential part of a hexagon socket head cap bolt according to an embodiment of a screw that fits the driver bit or wrench shown in FIG.
  • FIG. 2 is a cross-sectional view of a main part taken along line BB of (a) of FIG.
  • FIG. 3 is a plan view of the head of the hexagon socket head bolt shown in FIG.
  • FIG. 4 is a cross-sectional side view of an essential part showing a state in which the driver bit or wrench shown in FIG. 1 is abutted on the hexagon socket head bolt shown in FIG.
  • FIG. 5 is a cross-sectional side view of an essential part of a screw with a square hole made of another embodiment of a screw that is suitable for a driver bit or wrench according to the present invention.
  • FIG. 6 is a plan view of the head of the screw with a square hole shown in FIG.
  • FIG. 7 is a side view of a main part of a driver bit or a wrench according to the present invention, which is compatible with the screw having a square hole shown in FIG.
  • FIG. 8 is a side view of a main part showing still another embodiment of the driver bit or wrench according to the present invention.
  • FIG. 9 is a sectional side view of an essential part of a screw with a modified hexagonal hole according to another embodiment of the present invention, which is a screw suitable for a driver bit or a wrench according to the present invention.
  • FIG. 10 is a plan view of the head of the screw with the modified hexagonal hole shown in FIG.
  • FIG. 11 is a side view of a main part of a screwdriver bit or a wrench according to the present invention suitable for the screw having a modified hexagonal hole shown in FIG.
  • FIG. 12 is a cross-sectional side view of a main part showing a modified example of the modified hexagonal hole screw that fits the driver bit or wrench according to the present invention in FIG.
  • FIG. 13 is a side view of a main part of a driver bit or a wrench according to the present invention, which is adapted to the modified example of the modified hexagon socket screw shown in FIG.
  • FIG. 14 is an end view of the driver bit or wrench tip shown in FIG.
  • FIG. 15 is a cross-sectional side view of a main part of a conventional bolt with a hexagonal hole.
  • FIG. 16 is a plan view of the head of the hexagon socket head cap bolt shown in FIG. (A) of Fig. 17 is a schematic side view of a conventional screwdriver bit for hexagon socket head bolts.
  • FIG. 18 is a cross-sectional side view of a relevant part showing a contact state between the hexagon socket head bolt shown in FIG. 15 and the driver bit or wrench shown in FIG.
  • Example 1 An embodiment of a combination of a driver bit or a wrench and a screw according to the present invention will be described in detail with reference to the accompanying drawings.
  • Example 1
  • FIG. 1 show one embodiment of the driver bit or wrench according to the present invention. That is, the driver bit and the The wrench 30 has a hexagonal tip blade 32 so as to be properly mounted in the bit fitting base hole of a screw having a hexagonal hole as a bit base hole, A cylindrical protruding portion 34 for forming the hexagonal inscribed circle is provided at the tip of the tip blade portion 32, and the distal end surface of the cylindrical protruding portion 34 is formed as a conical protruding portion 35. Further, an extension blade portion 32 a having a vertical wall portion 33 extending vertically from the tip blade portion 32 is provided. In the driver bit or wrench 30 of the present embodiment, a relatively thin and sharp protrusion 36 is provided at the center of the circular protrusion 35.
  • reference numeral 40 indicates a bolt or a screw having a six-pi hole according to the present invention (hereinafter collectively referred to as a screw).
  • a hexagonal hole 42 as a bit fitting hole is provided in the screw head 40a of the screw 40.
  • the hexagonal hole 42 is provided at the center of the screw head 40a.
  • the hexagonal hole 42 forms a vertical wall surface 43 having a predetermined depth from its opening edge
  • the lower wall 43a of the vertical wall surface 43 has the hexagonal shape of the hexagonal hole 42.
  • a vertical step portion 44 that forms an inscribed circle is provided, and the lower edge portion 4 4a of the vertical step portion 4 4a is a slightly inclined circular bottom surface 4 5 that is directed toward the center of the neck 40b. Is formed.
  • the projection is provided at the center of the conical bottom surface 45 at the tip of the tip of the driver bit or wrench 30, There is provided an upper portion 46 configured to be able to fit the projection 36.
  • Each of the vertical wall surfaces 43 is formed as a substantially vertical wall surface of about 1.5 ° to 5 ° as a punching taper (height of the header punch). Accordingly, in the vertical wall 43 formed in the hexagon hole 42 of the screw 40, the vertical wall 33 of the tip blade 32 of the driver bit or wrench 30 and the fitting table are fitted. I do.
  • the screwdriver bit or wrench 30 has a cylindrical protruding portion 34 formed at the tip of the tip blade portion 32, with respect to the opening edge of the six hole 42 of the screw 40. Quickly fits and locks with the dimensions of the tangent circle, then the vertical wall 33 that extends vertically from the tip blade 32 The force matches the vertical wall 43 of the screw 40 hexagonal hole 42 As a result, the extended blade portion 32a enters the hexagonal hole 42, and the cylindrical protruding portion 32a. 3 4 fits into the vertical step 4 4 of the hexagonal hole 4 2 and the conical projection 3 5
  • the driver bit or the wrench 30 comes into contact with the fitting table with the tip blade 32 of the wrench 30 and the hexagon hole 42 of the screw 40, the bit is inserted.
  • the cylindrical projection 34 at the tip of the wrench or wrench 30, the circular projection 35, and the projection 36 provided at the center of the projection make contact with the hexagonal hole 42 of the screw.
  • the screw can be quickly and accurately inserted into the hexagonal hole 42.
  • the vertical wall 43 of the hexagon hole 42 of the screw 40 and the driver bit Alternatively, the vertical wall portion 33 extending vertically from the tip blade portion 32 of the wrench 30 can be immediately matched, and a combination of a conventional screw and a driver bit or wrench can be used. It is possible to effectively prevent the camouflage phenomenon occurring in the above. Further, according to the present embodiment, as shown by a broken line in FIG. 4, the driver bit or the tip blade portion 32 of the wrench 30 was securely fitted into the hexagon hole 42 of the screw 40.
  • FIGS. 5 to 7 show another embodiment of the driver 1 bit or wrench according to the present invention.
  • the same components as those in the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted. .
  • a screw 50 with a square hole having a square hole 52 as a bit fitting hole formed in the screw head 50a, and a screwdriver conforming to the screw 50 are provided.
  • Iba Indicates a bit or wrench 30.
  • FIGS. 5 and 6 show a screw 50 with a square hole in the present embodiment. That is, the square hole 52 forms a curved vertical wall surface 43 having a predetermined depth from the opening edge thereof, and the lower edge 43 a of the square wall hole 52 is formed on the lower edge 43 a of the vertical wall surface 43.
  • a vertical step 44 that forms an inscribed circle is provided, and a slightly inclined conical bottom surface 45 directed toward the center of the neck 50b is formed from the lower part 44a of the vertical step 44.
  • the conical bottom surface 45 has a concave portion 46 at the center thereof.
  • FIG. 7 shows an embodiment of a driver bit or wrench 30 suitable for a screw 50 with a square hole according to the present embodiment. That is, the driver bit or wrench 30 of the present embodiment is formed in a rectangular shape so as to properly fit in the square hole 52 as the bit fitting hole of the screw 50. And a cylindrical protruding portion 34 that forms the square inscribed circle is provided at the distal end of the distal blade portion 32. Then, the distal end surface of the cylindrical projection 34 is formed into a fibrous projection 35, and a projection 36 is formed at the center of the fibrous projection 35. An extended blade portion 32 a having a curved vertical wall portion 33 extending vertically from the tip blade portion 32 is provided.
  • the driver bit or wrench 30 is used in the same manner as in the first embodiment.
  • the cylindrical protrusion 34 formed at the tip of the screw 30 makes the cylindrical protrusion 34 fit into the square hole 52 of the screw 50 at the time of fitting and abutment with the square hole 52 of the screw 50. 52 In the opening portion of No. 2, it is possible to quickly and surely lock the fitting base in the square inscribed PI, thereby effectively preventing the cam mortality phenomenon and the driver bit.
  • the screw holding function of the tip blade 32 of the wrench 30 can be effectively exhibited.
  • FIG. 8 shows a modification of the driver bit or wrench according to the present invention.
  • the same components as those in the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and the description thereof will not be repeated.
  • the tip of the driver bit or wrench 30 is A central hole 37 having a required depth is formed inside the extended blade portion 3 2a from the end of the portion 32.
  • a rod member 3 6 ′ made of spring steel bent slightly into the central hole 37. It has a configuration in which is fitted.
  • the tip of the rod member 36 ′ is projected from the conical projection 35 formed at the tip of the driver bit or wrench 30, similarly to the projection 36 in the first embodiment. It is configured to work.
  • the axis 0 ′ directed to the tip of the rod member 36 ′ is the bit or the wrench. Since it is displaced with a required spring elasticity with respect to the screw shaft 0 or the screw shaft, the tip of the rod member 36 'and the concave portion 46 provided in the bit fitting hole of the screw 40 are formed. At the time of fitting, the screw holding function of the driver bit or the tip blade 32 of the wrench 30 can be more effectively exerted.
  • FIGS. 9 to 11 show still another modification of the driver 1 bit or wrench according to the present invention.
  • FIGS. 9 to 11 for convenience of description, the same components as those in the first embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted. I do.
  • FIG. 9 and FIG. 10 show a screw 40 with a modified hexagonal hole in this embodiment. That is, the deformed hexagonal hole 4 2 ′ forms a curved vertical wall 4 3 ′ having a predetermined depth from the opening edge thereof, and the deformed hexagonal hole 4 2 ′ is formed on the lower edge 4 3 a ′ of the vertical wall 4 3 ′.
  • a vertical step portion 4 is formed to form a deformed hexagonal inscribed circle of the square hole 4 2 ′, and the vertical step portion 4 4 is directed toward the center of the thread neck 4 0 b from the lower edge 4 4 a.
  • the bar bit or wrench 30 has a tip blade 32 made of a deformed hexagon so that the bar bit or wrench 30 can be properly fitted in the deformed hexagon hole 42 ′ serving as the bit fitting hole of the screw 40. At the tip of the tip blade 32, there is provided a cylindrical projection 34 that forms the inscribed circle of the deformed hexagon.
  • the distal end surface of the cylindrical projection 34 is formed into a circular projection 35, and a projection 36 is formed at the center of the conical projection 35.
  • An extended blade portion 32 a having a curved vertical wall portion 3 3 ′ extending vertically from the blade portion 32 is provided.
  • the combination of the driver bit or wrench 30 Due to the cylindrical projection 34 formed, the cylindrical projection 34 is deformed into a hexagon hole 4 2 ′ of the screw 40 when the cylindrical projection 34 engages with the deformed hexagon hole 4 2 ′ of the screw 40. Can be quickly and reliably fitted and locked in the inscribed circle of the deformed hexagon at the opening edge of the opening, effectively preventing the cam gating phenomenon, and at the same time as the driver bit or the driver bit.
  • the screw holding function of the tip blade 32 of the punch 30 can be effectively exhibited.
  • FIG. 12 to FIG. 4 show the deformation of the driver bit or wrench according to the fourth embodiment.
  • FIGS. 12 to 14 for convenience of description, the same components as those in the fourth embodiment shown in FIGS. 9 to 11 are denoted by the same reference numerals, and detailed description thereof will be omitted. Omitted.
  • a screw 40 with a deformed hexagonal hole in which the screw head 40a is formed flat and thin, and a driver bit or wrench 30 suitable for the screw 40 are provided. Is shown.
  • the deformed hexagonal holes 42 ′ provided in the screw 40 with a deformed hexagonal hole in the present embodiment protrude in a curved shape at an equal angle in each of six directions in the radial direction.
  • a vertical wall surface 43 'having a relatively small depth, that is, a minute depth, is formed.
  • a vertical step portion 44 having a minute depth forming an inscribed circle of the deformed hexagon of the deformed hexagonal hole 4 2 ′ is provided, This vertical column
  • a slightly inclined fiber bottom surface 45 is formed from the lower edge of the portion 44 toward the center of the screw neck 40b, and a concave portion 46 is formed at the center of the fiber bottom surface 45.
  • the screwdriver 40 or the wrench 30 that fits the screw 40 with a deformed hexagonal hole according to the present embodiment is, as shown in FIGS. It has a tip blade 32 made of a deformed hexagon so that it fits properly into the deformed hexagon hole 4 2 ′ as a socket fitting hole.
  • a minutely protruding cylindrical projection 34 that forms a hexagonal inscribed circle is provided.
  • the distal end face of the cylindrical projection 34 is formed into a conical projection 35, and further, a projection 36 is formed at the center of the circular projection 35, and A configuration is provided in which an extended blade portion 32 a having a curved vertical wall portion 3 3 ′ extending vertically from the blade portion 32 is provided.
  • the screw 40 with a deformed hexagonal hole in which the screw head 40a is formed to be flat and thin there is a limit in setting the depth of the bit K base hole.
  • the vertical step 44 that forms a square inscribed circle has a very small depth, and the driver bit or wrench 30 that fits it is also limited in the fitting base of the tip blade 32.
  • the cylindrical protruding portion 34 corresponding to the deformed hexagonal inscribed circle formed at the tip is formed to have a slightly protruding shape.
  • the driver bit or the driver bit Even if the edge of the tip blade of the wrench is formed to be flat enough to fit into the bit fitting base hole, a circle and a portion corresponding to the polygonal inscribed circle of the bit fitting hole are formed. Achieves proper and quick screw engagement with the driver bit or wrench by engaging with the protruding protrusion without causing damage to the screw head surface, such as galling. This is possible.
  • the driver bit or the wrench according to the present invention is provided with a cylindrical protruding portion that forms a polygonal inscribed circle at the tip of a polygonal tip blade portion,
  • the distal end surface of the cylindrical projection is formed as a conical projection, a projection is formed at the center of the conical projection, and a vertical wall is formed extending vertically from the tip blade.
  • the extended blade part is provided to form a polygonal hole consisting of a substantially vertical wall at the center of the screw head to the required depth, and is directed toward the center of the screw neck from the bottom of this vertical wall.
  • a screwdriver bit or a wrench can be quickly and easily formed at the opening edge of the screw with a polygonal hole. Engagement and locking can be ensured, and the cam guard phenomenon Along with the can and the child to prevent, Ru can and child to effectively prevent damage to the root Ji head surface.
  • the screw applied to the driver bit or the wrench is formed.
  • a polygonal hole consisting of a substantially vertical wall is formed at the center of the screw head to a required depth, and the vertical wall is formed.
  • a polygon is formed at the lower edge of the vertical wall surface of the polygonal hole formed in the screw head.
  • a vertical step is formed to form an inscribed circle of the circular step, and a lower surface of the vertical step is formed to form a fibrous bottom that is directed toward the center of the screw neck, and a concave is formed at the center of the conical bottom.
  • the screw can be easily and quickly positioned at the center position with respect to the bit fitting hole, and the rotation driving surface of the screw can be achieved. Abuts the contact with the Many excellent advantages can be obtained, such as reducing the damage to the screw by exerting the screw holding function and significantly improving the workability of the screw tightening operation.
  • the use of a header punch having a protrusion or a ridge that matches the shape of the above-mentioned screw bit base hole facilitates the manufacture of the screw. It can be mass-produced easily and at low cost.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

La présente invention concerne une lame de tournevis ou une combinaison de clé et de vis dans laquelle l'agencement de la partie avant d'une lame de tournevis ou le bord de la tête de la clé est amélioré de sorte qu'il est possible d'empêcher efficacement cette lame ou cette clé de sortir de la tête de vis. L'agencement de la partie d'une vis concernée raccordée par la partie avant de ce bord de tête est également amélioré de façon retenir la vis, de sorte qu'on réalise toujours un bon serrage rapide de la vis et l'efficacité de fonctionnement en est bien améliorée. La partie avant du bord de la tête polygonale possède une partie projection cylindrique formant un cercle inscrit dans le polygone. La surface de l'extrémité avant de cette partie projection cylindrique présente la forme d'une excroissance conique. Une projection est verrouillées dans la partie centrale de cette excroissance conique. Un bord d'extension est formé d'une paroi verticale partant verticalement de ce bord de tête. La tête de vis est formée au centre avec un trou polygonal défini par une surface de paroi sensiblement verticale se prolongeant sur une profondeur adaptée, et une surface de fond s'étend de la partie basse de cette paroi verticale vers le centre de la tête de vis. Cette lame de tournevis ou cette clé convient donc pour les vis à tête creuse polygonale.
PCT/JP2000/009200 2000-01-06 2000-12-25 Lame de tournevis ou combinaison de cle et de vis Ceased WO2001049459A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22244/01A AU2224401A (en) 2000-01-06 2000-12-25 Driver bit or wrench and screw combination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000/674 2000-01-06
JP2000000674 2000-01-06

Publications (1)

Publication Number Publication Date
WO2001049459A1 true WO2001049459A1 (fr) 2001-07-12

Family

ID=18529986

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/009200 Ceased WO2001049459A1 (fr) 2000-01-06 2000-12-25 Lame de tournevis ou combinaison de cle et de vis

Country Status (3)

Country Link
AU (1) AU2224401A (fr)
TW (1) TW477735B (fr)
WO (1) WO2001049459A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009534618A (ja) * 2006-04-24 2009-09-24 ティータップドライヴ アーエス ネジの頭部ならびにそれに用いる工具
WO2014111641A1 (fr) * 2013-01-18 2014-07-24 Snecma Vis, dispositif et procédé d'équilibrage pour pièce tournante de turbomachine
US9248558B1 (en) * 2011-06-21 2016-02-02 George Wayne Burkhardt Device and method for manipulating a magnetic object
CN105345411A (zh) * 2015-12-02 2016-02-24 陈硕 丝锥扳手的制造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6714262B2 (ja) * 2017-03-23 2020-06-24 グリップ・ホールディングズ・エルエルシー マルチグリップ・ソケットビット
TWI704982B (zh) * 2019-12-03 2020-09-21 鴻安國際興業有限公司 具有防滑功能的驅動工具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS447766B1 (fr) * 1966-05-13 1969-04-12
JPS4876348U (fr) * 1971-12-22 1973-09-21
JPS5015897U (fr) * 1973-06-11 1975-02-19
JPS52134899U (fr) * 1976-04-08 1977-10-13
JPS6031970U (ja) * 1983-08-10 1985-03-04 日本電気株式会社 六角棒スパナ
JPS637469U (fr) * 1986-07-01 1988-01-19
JPH11173315A (ja) * 1997-12-10 1999-06-29 Katsuyuki Totsu ねじ及びドライバービットまたはレンチとの組合せ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS447766B1 (fr) * 1966-05-13 1969-04-12
JPS4876348U (fr) * 1971-12-22 1973-09-21
JPS5015897U (fr) * 1973-06-11 1975-02-19
JPS52134899U (fr) * 1976-04-08 1977-10-13
JPS6031970U (ja) * 1983-08-10 1985-03-04 日本電気株式会社 六角棒スパナ
JPS637469U (fr) * 1986-07-01 1988-01-19
JPH11173315A (ja) * 1997-12-10 1999-06-29 Katsuyuki Totsu ねじ及びドライバービットまたはレンチとの組合せ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009534618A (ja) * 2006-04-24 2009-09-24 ティータップドライヴ アーエス ネジの頭部ならびにそれに用いる工具
US9248558B1 (en) * 2011-06-21 2016-02-02 George Wayne Burkhardt Device and method for manipulating a magnetic object
WO2014111641A1 (fr) * 2013-01-18 2014-07-24 Snecma Vis, dispositif et procédé d'équilibrage pour pièce tournante de turbomachine
CN104919138A (zh) * 2013-01-18 2015-09-16 斯奈克玛 用于涡轮发动机的旋转部件的平衡螺钉、装置和方法
US9970298B2 (en) 2013-01-18 2018-05-15 Snecma Balancing screw, device and method for a rotating part of a turbine engine
CN105345411A (zh) * 2015-12-02 2016-02-24 陈硕 丝锥扳手的制造方法

Also Published As

Publication number Publication date
AU2224401A (en) 2001-07-16
TW477735B (en) 2002-03-01

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