US20060025225A1 - Screw head slot shaper - Google Patents

Screw head slot shaper Download PDF

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Publication number
US20060025225A1
US20060025225A1 US10/903,285 US90328504A US2006025225A1 US 20060025225 A1 US20060025225 A1 US 20060025225A1 US 90328504 A US90328504 A US 90328504A US 2006025225 A1 US2006025225 A1 US 2006025225A1
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US
United States
Prior art keywords
slot
screw head
shaper
head slot
head
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.)
Abandoned
Application number
US10/903,285
Inventor
Keng-Shui Wu
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 US10/903,285 priority Critical patent/US20060025225A1/en
Publication of US20060025225A1 publication Critical patent/US20060025225A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • 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

Definitions

  • This invention relates to a screw head slot shaper, particularly to one provided with a shank and a head slot molding member on the shank.
  • the head slot molding member consists of a plurality of square layers of different sizes formed in a vertical condition. So screw heads provided with a slot with one layer or more layers can be shaped by a pressing process by means of the screw head slot shaper in the invention.
  • a conventional screw head slot shaper shown in FIG. 1 includes a shank (A), a head slot molding member (A 0 ) formed on the shank (A), and the head slot molding member (A 0 ) is composed of a square mold (A 1 ) of a single layer. So every screw shaped by this conventional screw head slot shaper only has a screw with a head (B 0 ) with a slot (B 1 ) of a single layer as shown in FIG. 2 .
  • This invention has been devised to offer screw head slot shaper, which is possible to form various shapes of a slot in the screw head.
  • One feature of the invention is the head slot molding member formed on the shank of a screw head slot shaper, and the head slot molding member is composed of plural square layers of different sizes formed in a vertical condition.
  • Another feature of the invention is plural square layers, which has two or three square layers respectively having different sizes.
  • One more feature of the invention is one single screw head slot shaper can form screw head slots of a single, or of plural square layers.
  • FIG. 1 is a side view of a conventional screw head slot shaper
  • FIG. 2 is a side cross-sectional view of a screw made by the conventional screw head slot shaper shown in FIG. 1 ;
  • FIG. 3 is an upper view of a screw head slot shaper in the present invention.
  • FIG. 4 is a side view of the screw head slot shaper in the present invention.
  • FIG. 5 is a perspective view of the screw head slot shaper in the present invention.
  • FIG. 6 is a perspective view of other two embodiments (A) and (B) of screw head slot shapers in the present invention.
  • FIG. 7 is a perspective view of other three embodiments (A), (B) and (C) of screw head slot shapers in the present invention.
  • FIG. 8 is a cross-sectional view of three different screws (A), (B) and (C) made by various embodiments of screw head slot shapers in the present invention.
  • a preferred embodiment of a screw head slot shaper in the present invention as shown in FIGS. 3, 4 and 5 includes a shank 1 and a head slot molding member 10 formed on the shank 1 .
  • the shank 1 can be of any shape and has a proper length as shown in FIGS. 4, 5 and 6 .
  • the head slot molding member 10 has three square layers 100 , 101 , and 102 respectively provided with different sizes.
  • the head slots of screws regulated by IFI are #0, #1, #2, #3 and #4, #0 has a width of square being 1.747 N 1.742 mm, #1 has a width of square being 2.268 N 2.263 mm, #2 has a width of square being 2.801 N 2.796 mm, #3 has a width of square being 3,314 N 3.309 mm, and #4 has a width of square being 4.772 N 4.767 mm. Therefore, three kinds of slots sizes can be chosen from these five regulated sizes for forming three different square layers, depending on demands.
  • a screw 2 of a head 20 with a slot 210 with a single layer shown in FIG. 8 (A), or a screw 2 with a head 20 with a slot 21 A of two square layers shown in FIG. 8 (B) or a screw 2 with a head 20 with a slot 21 B of three square layers shown in FIG. 8 (C) can be made by only one screw head slot shaper in the present invention.
  • FIG. 7 shows a screw slot head shaper provided with two square layers 100 and 101 and with shanks 1 of different shapes.
  • the square layers 100 and 101 have different sizes conforming to two of those regulated by IFI, in which #0 has a width of square being 1.747 N 1.742 mm, #1 has a width of square being 2.268 N 2.263 mm, #2 has a width of square being 2.801 N 2.796 mm, #3 has a width of square being 3.314 N 3.309 mm and $4 has a width of square being 4,772 N 4.767 mm.
  • any two of the five sizes can be selected for the two square layers for making the screw head slot shapers shown in FIG. 7 (A), (B) and (C), for forming screws 2 with a head slot 21 or 21 A with a single square layer or two square layers respectively shown in FIG. 8 (A) or 8 (C).
  • the screw head slot shaper in the invention has the following advantages.
  • a single screw head shaper can manufacture many screws with head slots of one or plural layers, saving the cost required for the screw head slot shaper.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A screw head slot shaper includes a shank and a head slot molding member formed on an upper end of the shank. The shake can be of any shape and of a proper length. The head slot molding member has plural square layers, which respectively have different sizes. So a single screw head slot shaper can manufacture screws with a head formed with a single layer slot, a two-layered slot or a three-layered slot depending on demands. Thus many different tools may conveniently be used for driving screws with a head with a slot of a single or plural square layers.

Description

    FIELD OF THE INVENTION
  • This invention relates to a screw head slot shaper, particularly to one provided with a shank and a head slot molding member on the shank.
  • The head slot molding member consists of a plurality of square layers of different sizes formed in a vertical condition. So screw heads provided with a slot with one layer or more layers can be shaped by a pressing process by means of the screw head slot shaper in the invention.
    • BACKGROUND OF THE INVENTION
  • A conventional screw head slot shaper shown in FIG. 1 includes a shank (A), a head slot molding member (A0) formed on the shank (A), and the head slot molding member (A0) is composed of a square mold (A1) of a single layer. So every screw shaped by this conventional screw head slot shaper only has a screw with a head (B0) with a slot (B1) of a single layer as shown in FIG. 2. If a screw with a different shaped slot is to be made, a different screw head slot shaper has to be used, therefore, many screw head slot shapers are needed for manufacturing screws with heads of different slots, so the cost should be increased, and in addition, the screw head slot only has one size, so only one kind of tool can be used for driving the screw, impossible to employ various tools for driving the screw.
    • SUMMARY OF THE INVENTION
  • This invention has been devised to offer screw head slot shaper, which is possible to form various shapes of a slot in the screw head.
  • 1. One feature of the invention is the head slot molding member formed on the shank of a screw head slot shaper, and the head slot molding member is composed of plural square layers of different sizes formed in a vertical condition.
  • 2. Another feature of the invention is plural square layers, which has two or three square layers respectively having different sizes.
  • 3. One more feature of the invention is one single screw head slot shaper can form screw head slots of a single, or of plural square layers.
    • BRIEF DESCRIPTION OF DRAWINGS
  • This invention will be better understood by referring to the accompanying drawings, wherein;
  • FIG. 1 is a side view of a conventional screw head slot shaper;
  • FIG. 2 is a side cross-sectional view of a screw made by the conventional screw head slot shaper shown in FIG. 1;
  • FIG. 3 is an upper view of a screw head slot shaper in the present invention;
  • FIG. 4 is a side view of the screw head slot shaper in the present invention;
  • FIG. 5 is a perspective view of the screw head slot shaper in the present invention;
  • FIG. 6 is a perspective view of other two embodiments (A) and (B) of screw head slot shapers in the present invention;
  • FIG. 7 is a perspective view of other three embodiments (A), (B) and (C) of screw head slot shapers in the present invention; and,
  • FIG. 8 is a cross-sectional view of three different screws (A), (B) and (C) made by various embodiments of screw head slot shapers in the present invention.
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • A preferred embodiment of a screw head slot shaper in the present invention as shown in FIGS. 3, 4 and 5, includes a shank 1 and a head slot molding member 10 formed on the shank 1.
  • The shank 1 can be of any shape and has a proper length as shown in FIGS. 4, 5 and 6.
  • The head slot molding member 10 has three square layers 100, 101, and 102 respectively provided with different sizes. The head slots of screws regulated by IFI are #0, #1, #2, #3 and #4, #0 has a width of square being 1.747 N1.742 mm, #1 has a width of square being 2.268 N 2.263 mm, #2 has a width of square being 2.801 N 2.796 mm, #3 has a width of square being 3,314 N 3.309 mm, and #4 has a width of square being 4.772 N 4.767 mm. Therefore, three kinds of slots sizes can be chosen from these five regulated sizes for forming three different square layers, depending on demands. Then either a screw 2 of a head 20 with a slot 210 with a single layer shown in FIG. 8 (A), or a screw 2 with a head 20 with a slot 21A of two square layers shown in FIG. 8 (B) or a screw 2 with a head 20 with a slot 21B of three square layers shown in FIG. 8 (C) can be made by only one screw head slot shaper in the present invention.
  • Next, FIG. 7 shows a screw slot head shaper provided with two square layers 100 and 101 and with shanks 1 of different shapes. The square layers 100 and 101 have different sizes conforming to two of those regulated by IFI, in which #0 has a width of square being 1.747 N 1.742 mm, #1 has a width of square being 2.268 N2.263 mm, #2 has a width of square being 2.801 N 2.796 mm, #3 has a width of square being 3.314 N 3.309 mm and $4 has a width of square being 4,772 N 4.767 mm. Thus, any two of the five sizes can be selected for the two square layers for making the screw head slot shapers shown in FIG. 7 (A), (B) and (C), for forming screws 2 with a head slot 21 or 21A with a single square layer or two square layers respectively shown in FIG. 8 (A) or 8 (C).
  • As can be understood from the aforesaid description, the screw head slot shaper in the invention has the following advantages.
  • 1. A single screw head shaper can manufacture many screws with head slots of one or plural layers, saving the cost required for the screw head slot shaper.
  • 2. Many kinds of tools can be used for driving screws with different slots made by a single screw head slot shaper in the invention.
  • While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.

Claims (5)

1. A screw head slot shaper comprising:
a shank of any shape having a proper length: and
a head slot molding member formed on an upper end of said shank and having three square layers of different sizes.
2. A screw head shaper comprising:
a shank of any shape having a proper length: and,
a head slot molding member formed on an upper end of said shank and having two square layers of different sizes.
3. The screw head slot shaper as claimed in claim 1, wherein said head slot molding member is shaped as a single layer for forming a screw head with a slot of a single layer.
4. The screw head slot shaper as claimed in claim 1, wherein said head slot molding member is shaped as two layers for forming a crew head with a slot of two square layers of different sizes.
5. The screw head slot shaper as claimed in claim 1, wherein said head slot molding member is shaped as three layers for forming a screw head with a slot of three layers of different sizes.
US10/903,285 2004-08-02 2004-08-02 Screw head slot shaper Abandoned US20060025225A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/903,285 US20060025225A1 (en) 2004-08-02 2004-08-02 Screw head slot shaper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/903,285 US20060025225A1 (en) 2004-08-02 2004-08-02 Screw head slot shaper

Publications (1)

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US20060025225A1 true US20060025225A1 (en) 2006-02-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070297610A1 (en) * 2006-06-23 2007-12-27 Microsoft Corporation Data protection for a mobile device
EP2036633A1 (en) * 2007-09-14 2009-03-18 Taiwan Shan Yin Int'l Co., Ltd. Punch and recessed screw formed thereby

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977838A (en) * 1957-09-20 1961-04-04 Gen Am Transport Square-recessed screws and punch means for making same
US3728892A (en) * 1971-09-15 1973-04-24 Canada Steel Co Ballistic shape punch and screw head socket
US3898706A (en) * 1972-11-21 1975-08-12 Utility Products Pty Ltd Method of forming a recess in a fastening element head
US6406376B1 (en) * 1999-08-11 2002-06-18 Chao-Wei Lin Compound screw drive recesses mold
US6755748B2 (en) * 2001-09-17 2004-06-29 Uni-Screw Limited Screw head formation
US6792838B2 (en) * 2002-05-10 2004-09-21 Uni-Screw Worldwide, Inc. Integrated fastening system
US6948408B1 (en) * 2001-08-17 2005-09-27 Howard Lee Flat ended double cube shaped tipped, screwdriver system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977838A (en) * 1957-09-20 1961-04-04 Gen Am Transport Square-recessed screws and punch means for making same
US3728892A (en) * 1971-09-15 1973-04-24 Canada Steel Co Ballistic shape punch and screw head socket
US3898706A (en) * 1972-11-21 1975-08-12 Utility Products Pty Ltd Method of forming a recess in a fastening element head
US6406376B1 (en) * 1999-08-11 2002-06-18 Chao-Wei Lin Compound screw drive recesses mold
US6948408B1 (en) * 2001-08-17 2005-09-27 Howard Lee Flat ended double cube shaped tipped, screwdriver system
US6755748B2 (en) * 2001-09-17 2004-06-29 Uni-Screw Limited Screw head formation
US6792838B2 (en) * 2002-05-10 2004-09-21 Uni-Screw Worldwide, Inc. Integrated fastening system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070297610A1 (en) * 2006-06-23 2007-12-27 Microsoft Corporation Data protection for a mobile device
EP2036633A1 (en) * 2007-09-14 2009-03-18 Taiwan Shan Yin Int'l Co., Ltd. Punch and recessed screw formed thereby

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