WO2004065803A1 - ねじ及びドライバビット並びにねじ頭部形成用パンチ - Google Patents
ねじ及びドライバビット並びにねじ頭部形成用パンチ Download PDFInfo
- Publication number
- WO2004065803A1 WO2004065803A1 PCT/JP2004/000377 JP2004000377W WO2004065803A1 WO 2004065803 A1 WO2004065803 A1 WO 2004065803A1 JP 2004000377 W JP2004000377 W JP 2004000377W WO 2004065803 A1 WO2004065803 A1 WO 2004065803A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- bit
- head
- fitting hole
- forming
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000002788 crimping Methods 0.000 abstract 1
- 241000755266 Kathetostoma giganteum Species 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 238000009940 knitting Methods 0.000 description 4
- 230000000669 biting effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- F16B23/0023—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 cross-shaped
-
- 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
- B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
Definitions
- the present invention relates to a screw and a driver bit having a bit fitting hole such as a cross-shaped hole in a head thereof for transmitting a rotational torque by engaging with a driver bit, and a screw head forming punch (bunch). .
- Screws with cross recesses are generally tightened and removed using a Phillips screwdriver (cross screwdriver (JIS B 4 6 3 3)) or a driver bit.
- Phillips screwdriver cross screwdriver (JIS B 4 6 3 3)
- driver bit Such cross-headed screws are widely used because of their excellent torque transmission efficiency due to the cross-shaped holes, and good pit fitting and biting.
- Patent Document 1 proposes a cross-shaped hole having a large cross-sectional shape by changing the hole shape of the cross-shaped hole so as to ensure a large torque transmission capability and a large thrust surface capable of withstanding a large thrust. . Further, a screw having a specially formed hole in place of such a cross-shaped hole is proposed in Patent Documents 2 and 3.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-17995
- Patent Document 2 Japanese Patent Application Laid-Open No. 3-292924
- Patent Document 3 Japanese Patent Publication No. 7-37805
- Patent Document 1 discloses a cross which has four locking grooves and is JIS-standardized. PT / JP2004 / 000377 Compared to the hole, the width of the outer peripheral surface of the locking groove was wider than that of the fiber product, and the length of the both sides of the locking groove in the ⁇ direction was shorter than the width of the outer peripheral surface. Because of the shape, there is a problem that it takes time to manufacture a punch forming a cross hole. Similarly, Patent Documents 2 and 3 using a cross-shaped hole instead of a cross hole also have a problem that it takes time to manufacture a punch for forming these concave holes.
- an lf self bit fitting hole is connected to a bit fitting hole main body, and the bit fitting hole body is continuously connected thereto. It is characterized in that it is constituted by a surrounding surface portion formed of a surface substantially parallel to the screw axis.
- a thick portion is formed around a continuous surface portion of the head, and a bit to be used is determined according to the presence or absence of the thick portion.
- the length of the continuous surface portion in the screw axis direction is preferably 5 to 50% with respect to the length of the E bit fitting hole main body portion in the screw axis direction. If it is less than 5%, the torque efficiency will not be reduced, and if it exceeds 50 Q0, the production efficiency will be reduced and the operability when inserting the driver bit will be impaired.
- the body portion of the knitting bit fitting hole is preferably used, for example, in the same cross-hole force as a conventional standard product (JISB102 (cross-shaped hole for screw)). This ten
- JISB102 cross-shaped hole for screw
- the V-shaped hole has four inclined grooves that are inclined with respect to the screw axis, and is arranged in a cross shape. Other cross-shaped holes may be used.
- a cross-shaped hole formed by extending the opposite locking groove of the cross-shaped hole in a straight line is also included.
- the bit fitting hole may be a Y-shaped hole corresponding to a Y-shaped three-blade type drive bit instead of the cross-shaped hole.
- the present invention provides a screw having a bit fitting hole for bit force fitting at a head thereof along a screw axis, wherein a thick portion is provided on a knitting head, and the bit fitting portion is fitted to the thick portion.
- a mating hole is formed, and the bit fitting hole is formed by a bit fitting hole main body and a surface which is continuous with the bit shaft and is substantially parallel to the screw axis. Is the floor.
- a bit tip ⁇ which is used for the screw with the bit fitting hole, enters the knitting bit fitting hole, and is fitted to the bit fitting hole body, And a supporting portion fitted to the lf self-shielding surface portion.
- the screw head forming punch of the present invention is characterized in that it has a protruding portion for forming an it's own bit fitting hole, and a base for forming an lf self-continuous surface portion continuous with the protruding portion.
- a cross-shaped protrusion for forming a so-called self-bit fitting hole and a cross-shaped protrusion for surrounding the cross-shaped protrusion to form a carrying self-continuous surface portion. It is characterized by having a base portion and a thick portion forming groove continuous with the base portion for forming the thick portion.
- the driver bits include those formed integrally with the tip of a general hand-held driver, in addition to those formed at the tip of the electric driver.
- the present invention by forming the bit fitting hole from the bit fitting hole main body portion and the continuous surface portion surrounding the bit fitting hole main portion and substantially parallel to the screw shaft, the mounting of the screw and the 1 ⁇ ⁇ When the screw is removed, the torque is fed through the transitional surface in addition to the bit fitting hole, so the torque efficiency is improved.For example, even if the screw is rusted, the screw is securely removed. Can be rotated, and the screw can be easily removed. In the case of precision machine screws, In this case, the bit may lick the so-called bit fitting hole, resulting in poor fitting.
- a thick part is formed around the continuous surface part of the head, and the bit to be used is identified by the presence or absence of this thick part, thereby obtaining a U mark that also serves as reinforcement of the surface part.
- the bit fitting hole formed in the head is located above the screw body part, and the connection part between the head and the screw body is made thicker by that amount. No more head jumps. Especially, in the case of small screws for precision parts, it was impossible to remove the screw body that jumped out of the head when it jumped. ⁇ Such a situation can be avoided.
- by enclosing the bit fitting hole with substantially the same width and forming the outer shape of the thick portion in a cross shape similar to the bit fitting hole for example, it is possible to uniformly reinforce the fiber surface portion. .
- a driver bit that has its own bit fitting hole, fits into the bit fitting hole body, and has a ⁇ ⁇ portion that is continuous with this bit tip and that fits into the surrounding surface portion.
- torque can be transferred from the driver bit to the screw via the connecting portion in addition to the bit end, and the screw can be easily and reliably mounted and removed.
- a protruding portion for forming an it bit fitting hole, a base portion continuous with the protruding portion, and a knitting surface portion, and a lf self thick portion continuous with the base portion are formed.
- FIG. 1 is a plan view showing a flat-head screw with cross recess of the present invention.
- FIG. 2 is a longitudinal sectional view taken along line II-II in FIG.
- FIG. 3 is a cross-sectional view along the line III-III in FIG.
- FIGS. 4 (A) and 4 (B) are partially cutaway side views showing a driver bit and a flat head screw used for tightening or removing the flat head screw of the present invention.
- FIG. 5 is a front view showing an example of a cross-shaped JOT haunch of the present invention.
- FIG. 6 is a perspective view showing a countersunk machine screw in another difficult form.
- FIG. 7 is a longitudinal sectional view showing a flathead screw in another embodiment.
- FIG. 8 is a perspective view showing a small machine screw in another embodiment.
- FIG. 9 is a plan view showing an example of a head forming punch for a pan head screw.
- FIG. 10 is a side view of the punch.
- FIG. 11 is an enlarged front view showing the cross-shaped hole forming projections of the same.
- FIG. 12 is a flathead screw according to another embodiment, and FIG. 12 ( ⁇ ) is a plan view and FIG. 12 ( ⁇ ) is a longitudinal sectional view.
- FIG. 1 is a plan view showing a cross-recessed flat head machine screw of the present invention
- FIGS. 2 and 3 are sectional views of the same.
- the head 11 of the screw 10 is formed in a dish shape, and the head 11 has a cross-shaped hole 12 formed therein.
- the cruciform hole 12 is formed by a cruciform hole main body 13 and a surrounding surface 5 formed by a surrounding force and a surface force substantially parallel to the screw shaft 14.
- the cross-hole body 13 has the same shape as the conventional cross-shaped hole for screws, which is a JIS standard product. The details are specified in JISB 1012.
- the cross-hole body 13 is formed in a cross shape by arranging four j3 ⁇ 4 inclined grooves 16 at a 90 ° pitch. Also, 6 is the screw shaft
- the connecting surface portion 15 is formed so as to be continuous with the taper surface 16a and both side surfaces 16b and 16c of the oblique grooves 16 of the cross-hole main body portion 13. It is composed of a peripheral surface 15a and both side surfaces 15b, 15c, and is formed substantially parallel to the screw shaft 14.
- the 3 ⁇ angle of each of these surfaces 15a to 15c with respect to the screw axis 14 is 5 ⁇ 0.5.
- the entire surface of the tape becomes a sampling gradient. This crossing angle may be in the range of 0-15 °, preferably 2-7 °.
- the depth D1 of the continuous surface portion 15 is in the range of 5 to 50%, preferably 8 to 40%, and particularly preferably 25 to 40% with respect to the depth D2 of the cross hole main body portion 13. %. : In the swollen state, the depth D 1 is 35 ⁇ 0.5% of D 2.
- the size of the cross-hole main body 13 is divided into Nos. 1 to 4 according to the size of the screw used, and the size of each part is regulated by JIS B 1012 for each count.
- the length M (see FIG. 1) of the cross hole 12 is determined according to the rules of the thread product.
- Figures 4 (A) and (B) show the driver bit of the present invention used when tightening or removing the upper machine screw.
- (C) shows an example of the conventional countersunk screw 50 and dry nut bit 51.
- the driver bit 20 of the present invention includes a cruciform tip 21 that fits into the lf cruciform hole 12 and fits into the fll cruciform hole main body 13. And a part 22 that fits the
- the screw 10 can be surely rotated by the secure fitting of the surface portion 15 and the continuous portion 22. 0 can be easily removed.
- 1 2 2 eliminates the force that the pan / J and screw 10 drop off from the dry drill bit 20 and removes the force. The performance is improved.
- FIG. 5 shows an example of a punch for forming a cross hole.
- the punch 30 is formed in a cylindrical shape, and a cross hole forming member 31 is provided on the upper end surface thereof.
- the ridge 31 for forming a cross hole is for forming a cross hole 12 of a countersunk screw 10, and has a cruciform tip 3 1 a for forming a cross hole main body 13.
- the punch 30 is attached to a well-known header device (not shown).
- the header device is a device that creates a screw by processing a wire material such as a pin, and includes a wire material cutting portion, a die, a ram, and a driving portion.
- the wire cutting section cuts out the wire at a length for forming small screws.
- a head and a cruciform hole are formed on the cut wire (work) by a die and a punch.
- a punch 30 is attached to the ram, and the ram is moved forward and backward with respect to the dies by the ram car attachment portion, so that a head and a cross hole are formed on the head.
- the work formed with the cross-hair force by the header device is formed with a male thread portion by a well-known form rolling device (not shown).
- the thick portion 61 is provided so that the normal cross hole and the cross hole 12 of the present invention can be easily formed. Then, by changing the outer shape of the thick portion 61 to a cross shape similar to the shape of the cross hole and changing the shape of the head portion 62 to a normal shape, the flat head screw 60 of the present invention is confirmed. It is easily identifiable. This incorrectly uses normal driver bits P Satoshi 004 ⁇ 77 I lose power.
- the height H1 of the thick portion 61 is 0.5 mm, and the height D1 of the surface portion 15 is 1.3 mm. These may be changed as appropriate.
- Figure 7 shows an example of a countersunk machine screw with a head jumping collar.
- the height D 1 of the surrounding surface portion 15 and the thick portion 6 1 The height HI is increased (D 1 HI).
- the bottom of the cross-shaped hole 12 is raised compared to the conventional flat head screw 64 shown in (C), and the wall thickness t1 between the head 6 2a and the screw body 6 2b is reduced. It is larger than the wall thickness t3 of the screw 64 of the above. Therefore, the bonding strength between the head 62 a and the screw body 62 b can be increased, and the occurrence of head jump can be suppressed.
- the thickness t1 between the head 62a and the screw body 62b is secured by the difference between the height HI of the thick portion and the height D1 of the continuous surface portion.
- the height H 2 of the head 6 3a can be made higher than the head height H 3 of the conventional screw 64 as in the countersunk screw 63 shown in (B).
- the strength of the connection between the head 63 a and the screw body 63 b can be increased. In this case as well, by forming a thread-like U-mark such as a small hole, notch, or groove in the head 63 a, it is easy to use a screw that prevents cam head jumping. Become recognizable.
- the fiber surface portion 15 may be omitted in the above (A) and (B), and only the cross-hole body portion 13 may be provided. Also in this case, the occurrence of head jump can be suppressed.
- the force described using a countersunk screw as an example may be applied to the small screw 65 shown in FIG.
- the thick portion 68 is formed corresponding to the continuous surface ⁇ 67 of the cross hole 66.
- the height of the thick portion 68 is not necessarily the same as the height of the connecting surface portion 67, and may be changed as appropriate.
- FIGS. 9 to 11 show an example of a punch for forming the head of a pan-head screw.
- This punch 70 is formed in a cylindrical shape, and the top surface 70 a is provided with a head shape j3 ⁇ 43 ⁇ 4.
- Concave part 7 One force is formed.
- the head-forming recess 7 1 is designed for a pan-head screw. It is formed in a simple shape.
- a cross hole forming projection 72, a thick portion forming groove 73, and a thick portion outer shape forming convex portion 74 and a force are provided.
- the cross-shaped JOT projection 7 2 has the same configuration as the cross-shaped hole 12 of the countersunk screw 10 and has a cross-shaped tip [17 2a Character tip ⁇ ! It has a base 72b that fits into the it self-surrounding surface I5.
- the thick portion forming groove 73 is formed of a concave portion for forming the thick portion 68.
- the thick portion outer shape forming convex portion 74 is formed by fiber-forming the thick portion turning groove 73, and the convex portion 74 forms the outer shape of the thick portion 68 in a cross shape.
- a small screw has been described as an example, but the screw is not limited to these and can be applied to various screws.
- a wood screw or a tapping screw may be used.
- the shape of the head may be a circle, a flat, a round flat, a round plate, a truss, a brazier, a bind, a cheese, etc. instead of a plate or a pan.
- a punch 70 as shown in FIGS. 9 to 11 is used.
- the material net may be any material as long as it can be used as a screw.
- a cross-shaped hole having a continuous surface as described above is formed during molding.
- the screw can be applied to various screws such as a pan, a round plate, and a circle, in addition to the flat head screw of the first embodiment.
- the cross-section hole other than this rule can be configured to have the above-mentioned surface portion 15 even for cross holes.
- the present invention can be applied.
- the present invention may be applied to a slotted cross hole in which a facing diagonal screen is surrounded by a straight line and a minus screwdriver can be used.
- the present invention may be implemented with a Y-shaped hole formed as a bit fitting hole so as to correspond to a three-bladed bit of a Y-shaped I dog instead of a cross-shaped hole. In this case, a continuous surface portion is formed so as to surround the Y-shaped hole main body.
- a thick part is formed so as to surround the surface, and the outer shape of this thick part is similar to the Y-shaped hole. Make it easily identifiable.
- the shape of the thick portion as the identification mark may be a band-shaped thick portion 80 as shown in FIG. 12 in addition to those shown in FIGS. 6 and 8, and also in this case, the thick portion 80 This makes it possible to identify the countersunk screw 81 as a special screw and to reinforce the vertical surface 15 by the thick portion 80.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-010962 | 2003-01-20 | ||
JP2003010962 | 2003-01-20 | ||
JP2003-420262 | 2003-12-18 | ||
JP2003420262A JP2005106269A (ja) | 2003-01-20 | 2003-12-18 | ねじ及びドライバビット並びにねじ頭部形成用パンチ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004065803A1 true WO2004065803A1 (ja) | 2004-08-05 |
Family
ID=32775155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/000377 WO2004065803A1 (ja) | 2003-01-20 | 2004-01-19 | ねじ及びドライバビット並びにねじ頭部形成用パンチ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2005106269A (ja) |
TW (1) | TW200525090A (ja) |
WO (1) | WO2004065803A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015082283A1 (de) * | 2013-12-03 | 2015-06-11 | Adolf Würth Gmbh & Co.Kg | Schraube und antriebselement mit fase |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100658390B1 (ko) | 2005-11-09 | 2007-01-04 | 주식회사 서울금속 | 십자홈붙이 나사 |
JP5303080B2 (ja) * | 2007-06-27 | 2013-10-02 | 輝文 野地川 | ねじおよびドライバビット |
JP5021599B2 (ja) * | 2008-10-10 | 2012-09-12 | クラウン精密工業株式会社 | 螺子におけるドライバービット嵌合用十字溝の構造 |
AU2012298762A1 (en) * | 2011-08-25 | 2014-03-13 | Infastech Intellectual Properties Pte. Ltd. | Tapered lobular driver and fastener |
JP2019120270A (ja) * | 2017-12-28 | 2019-07-22 | リンナイ株式会社 | トラス小ねじ |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4958955U (ja) * | 1972-09-08 | 1974-05-24 | ||
JPS5514192U (ja) * | 1978-07-14 | 1980-01-29 | ||
JPS5836617U (ja) * | 1981-09-03 | 1983-03-10 | 野々山 勝 | アプセツトボルト |
JPS62137137A (ja) * | 1985-12-11 | 1987-06-20 | Kozo Yamamoto | ねじ頭部の製造方法 |
US6293745B1 (en) * | 2000-04-21 | 2001-09-25 | Cheng Chuan Lu | Screw with an improved head structure and punch for forming same |
US6378406B1 (en) * | 1998-02-24 | 2002-04-30 | Katsuyuki Totsu | Combination of driver bit and screw |
JP2002140925A (ja) * | 2000-10-31 | 2002-05-17 | Matsushita Electric Works Ltd | 照明器具およびつまみ部付き締付けねじ |
-
2003
- 2003-12-18 JP JP2003420262A patent/JP2005106269A/ja active Pending
-
2004
- 2004-01-19 TW TW93101351A patent/TW200525090A/zh unknown
- 2004-01-19 WO PCT/JP2004/000377 patent/WO2004065803A1/ja not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4958955U (ja) * | 1972-09-08 | 1974-05-24 | ||
JPS5514192U (ja) * | 1978-07-14 | 1980-01-29 | ||
JPS5836617U (ja) * | 1981-09-03 | 1983-03-10 | 野々山 勝 | アプセツトボルト |
JPS62137137A (ja) * | 1985-12-11 | 1987-06-20 | Kozo Yamamoto | ねじ頭部の製造方法 |
US6378406B1 (en) * | 1998-02-24 | 2002-04-30 | Katsuyuki Totsu | Combination of driver bit and screw |
US6293745B1 (en) * | 2000-04-21 | 2001-09-25 | Cheng Chuan Lu | Screw with an improved head structure and punch for forming same |
JP2002140925A (ja) * | 2000-10-31 | 2002-05-17 | Matsushita Electric Works Ltd | 照明器具およびつまみ部付き締付けねじ |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015082283A1 (de) * | 2013-12-03 | 2015-06-11 | Adolf Würth Gmbh & Co.Kg | Schraube und antriebselement mit fase |
US20160305462A1 (en) * | 2013-12-03 | 2016-10-20 | Adolf Würth GmbH & Co. KG | Screw and Drive Element with Chamfer |
AU2014359508B2 (en) * | 2013-12-03 | 2018-05-10 | Würth International Ag | Screw and drive element having a chamfer |
RU2664947C1 (ru) * | 2013-12-03 | 2018-08-23 | Адольф Вюрт Гмбх Унд Ко.Кг | Винт и элемент привода с фаской |
US10385902B2 (en) | 2013-12-03 | 2019-08-20 | Adolf Würth GmbH & Co., KG | Screw and drive element with chamfer |
Also Published As
Publication number | Publication date |
---|---|
TW200525090A (en) | 2005-08-01 |
JP2005106269A (ja) | 2005-04-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4989784B1 (ja) | タッピンねじ | |
EP2164666B1 (en) | Multi-piece tool assembly and cutting tool | |
US6739815B2 (en) | Wood screw | |
JP4197599B2 (ja) | いじり防止ねじ及びドライバービットとの組合せ並びにいじり防止ねじ製造用ヘッダーパンチ | |
JP4205990B2 (ja) | 駆動穴付きねじ及びドライバビット | |
JP4225546B2 (ja) | タッピンねじ | |
TW201843397A (zh) | 具有在螺紋道之間的拱狀凸起的木螺絲 | |
JPH0250326B2 (ja) | ||
US20100104397A1 (en) | Screw and driver bit | |
JP2008510117A (ja) | 木製の、及びプラスチック製のねじ | |
US20110014007A1 (en) | Masonry anchor | |
KR20140059257A (ko) | 음의 구동 각도 | |
US8757950B2 (en) | Structure of cross-shaped groove of screw for fit with driver bit | |
EP2302232A2 (en) | Drivers with multi-tiered driving tips | |
US20020127084A1 (en) | Screw having a screw thread formed with concave facets | |
US20050069396A1 (en) | Screw | |
WO2004065803A1 (ja) | ねじ及びドライバビット並びにねじ頭部形成用パンチ | |
JP2006329254A (ja) | 2条式木ねじ | |
JP4947584B2 (ja) | コンクリート製品類用タッピンねじ | |
HU189781B (en) | Self-cutting thread inset | |
JP2004197908A (ja) | ねじおよびドライバビット | |
JP6742587B2 (ja) | ねじ保持形ドライバービットおよびねじとの組合せ | |
EP1180609A1 (en) | Screw having a screw thread formed with concave facets | |
JP7223398B2 (ja) | ねじ | |
TWI648479B (zh) | 鑽尾螺絲 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |