WO2010106775A1 - 雌ねじ部品及びこれを用いた締結部品 - Google Patents
雌ねじ部品及びこれを用いた締結部品 Download PDFInfo
- Publication number
- WO2010106775A1 WO2010106775A1 PCT/JP2010/001817 JP2010001817W WO2010106775A1 WO 2010106775 A1 WO2010106775 A1 WO 2010106775A1 JP 2010001817 W JP2010001817 W JP 2010001817W WO 2010106775 A1 WO2010106775 A1 WO 2010106775A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bolt
- female screw
- thread
- female
- protrusion
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 16
- 230000037431 insertion Effects 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 3
- 241000135309 Processus Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/044—Specially-shaped ends
- F16B35/047—Specially-shaped ends for preventing cross-threading, i.e. preventing skewing of bolt and nut
-
- 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
Definitions
- the present invention relates to a female screw part used for fastening various parts and a fastening part using the same.
- a fastening method in which a female screw part such as a nut is welded to one part and the other part is fixed with a bolt is widely adopted.
- the bolt is inserted obliquely with respect to the axis of the female thread part, the male thread of the bolt does not properly engage with the female thread of the female thread part and the threads collide with each other. If rotated, seizure may occur. When this state is reached, it is difficult to reversely rotate the bolt, resulting in a great trouble.
- Such seizure due to slanting occurs at the incomplete thread formed at the beginning of the thread of the bolt / female thread part.
- the incomplete threaded part of the bolt has a smaller diameter than the complete threaded part
- the incompletely threaded part of the female threaded part has a larger diameter than the complete threaded part. This is because they can mesh with each other.
- the screw threads do not mesh with each other when the pitch is shifted, and seizure does not occur. From this, it is conceivable to prevent seizure due to slanting by eliminating the incomplete threaded portion of the bolt / female threaded part and making the threading start position sharply rising.
- Patent Document 1 discloses a female screw component in which an incomplete screw portion is eliminated with the start of female screw cutting as an upright surface.
- the rising surface of the thread and the thread start of the internal thread part may collide, It has been found that the bolt may not be inserted smoothly.
- an object of the present invention is to solve the above-described conventional problems, prevent seizure due to oblique insertion, and to provide a female screw component that can be smoothly fastened when a bolt is inserted from any direction. It is to provide the fastening parts used.
- the internal thread part of the present invention made to solve the above-mentioned problem is formed with an unthreaded portion on the inner peripheral surface of the internal thread part body provided with the internal thread by at least one pitch from the end surface on the bolt insertion side, A protrusion is formed on an extension line of the female thread of the female thread around the unthreaded portion.
- the protrusion is a screw thread, and the incomplete thread portion on the start end side can be eliminated or shortened.
- a structure can be adopted in which the starting end position of the female screw of the female screw component body and the starting end position of the protrusion are shifted in the circumferential direction.
- the starting end of the internal thread of the internal thread component body can be an upstanding surface without an incomplete thread.
- the fastening part of the present invention is characterized in that the female thread part described above is combined with a bolt without an incomplete thread part at a position where the male thread starts to be cut.
- this bolt is provided with the guide part in the front-end
- the female screw component of the present invention is a product in which a protrusion is formed at a position on the extension line of the female screw's winding of the screw-less portion formed on the bolt insertion side of the female screw component body. Therefore, when the bolt is inserted obliquely from the side where the protrusion is formed, the male screw of the bolt is normally engaged with the female screw of the female screw part for the same reason as in FIG. The standing surfaces at the beginning of the mountain do not collide.
- the portion other than the projection is a threadless portion without a female thread for at least one pitch. It is inserted without contact with the female screw and first engages with the protrusion. Therefore, the male screw of the bolt is normally screwed with the female screw of the female screw part, and the standing surfaces of the bolt and the female thread starting part of the female screw part do not collide with each other.
- this projection does not have a portion corresponding to the incomplete thread portion or can be made very short even if it exists, it is possible to completely prevent seizure due to oblique entry.
- the structure is such that the starting end position of the female screw of the female screw component body and the starting end position of the projection are shifted in the circumferential direction, it is formed closer to the bolt insertion side inside the female screw component body than those in which these starting end positions are matched. Since the screwless space can be reduced, the function of the projection to guide the screw of the bolt is enhanced, and the inclination of the bolt is further easily corrected.
- FIG. 1 It is a top view which shows the volt
- FIG. 4 is a perspective view showing an embodiment in which the present invention is applied to a weld nut which is a female screw part
- FIG. 5 is an enlarged view of a main part thereof
- FIG. 6 is a cross-sectional view along AA
- FIG. 7 is a cross-sectional view along BB.
- Reference numeral 10 denotes a female thread component main body
- 11 denotes an end surface (seat surface) on the bolt insertion side
- 12 denotes a welding protrusion formed on the end surface 11.
- a female screw 13 is formed on the inner peripheral surface of the female screw component main body 10, but at least one pitch from the end surface 11 is a non-threaded portion 14 without the female screw 13.
- the threadless portion 14 is formed with a protrusion 15 that engages with the flank surface of the male thread of the bolt.
- the protrusion 15 needs to be positioned on a line obtained by extending a helical winding (illustrated by a broken line) of the female screw 13 toward the unthreaded portion 14. Further, the height of the protrusion 15 is preferably matched with the height of the female screw 13. If the height of the projection 15 is higher than the height of the female screw 13, the bolt cannot be inserted. If the height of the projection 15 is lower than the height of the female screw 13, it causes seizure similarly to the incomplete screw portion. It is.
- the protrusion 15 has the same shape as a part of the thread.
- the starting end side is a sharp rising surface 16, which prevents seizure due to an incomplete thread portion.
- the rear end side of the protrusion 15 may be a slope 17 as shown.
- the circumferential length of the protrusion 15 is not particularly limited, but if it is too long, the meaning of providing the screwless portion 14 is lowered. Therefore, the central angle is preferably about 10 ° to 30 °, and in this embodiment, it is about 15 °.
- the starting end portion of the female screw 13 is also a standing surface 18 having no incomplete screw portion.
- the standing surface 16 of the protrusion 15 and the standing surface 18 of the female screw 13 prevent seizure due to the incomplete screw portion, and are not limited to the illustrated shapes as long as the incomplete screw portion is eliminated or eliminated as much as possible. .
- FIGS. 8 and 9 are cross-sectional views showing a fastening part in combination with the female thread part and the bolt 20 described above.
- the male screw 21 of the bolt 20 has no incomplete screw portion at the cutting start position and has a standing surface 22. This is because if the bolt 20 has an incomplete thread portion, seizure may still occur.
- the bolt 20 is preferably provided with a guide portion 23 having no screw 21 at its tip. This is because the guide portion 23 has an effect of correcting the posture of the bolt 20 inserted obliquely with respect to the female screw component in the upright direction.
- FIGS. 8 and 9 are cross-sectional views of the female screw component of the present invention cut along a plane passing through the protrusion 15, and the left side of the upper end of the female screw component is the protrusion 15.
- FIG. 8 shows a state where the bolt 20 is inserted obliquely from the direction in which the protrusion 15 is present. In this case, the flank surface of the male screw 21 of the bolt 20 first contacts the protrusion 15 of the female screw part. Therefore, when the bolt 20 is further rotated as indicated by an arrow in FIG.
- the male screw 21 of the bolt 20 is normally screwed with the female screw 13 of the female screw component, and the rising surface 22 of the screw thread starting end of the bolt 20, The rising surface 16 of the protrusion 15 of the female screw part and the rising surface 18 of the screw thread start end do not collide with each other.
- FIG. 10 is a view showing the state in which the bolt 20 is inserted obliquely with respect to the female screw component in a more easily understandable manner as in FIG. 9.
- the internal thread 13 of the internal thread part has a thread shape that is visible on the back side as shown in a normal sectional view, whereas the external thread 21 of the bolt 20 indicated by a broken line is not the front side of the bolt but the back side. It is displayed with the side seen through. This is for displaying the shape of the external thread 21 that is actually in contact with the internal thread 13 of the internal thread component indicated by the solid line.
- the flank surface of the male screw 21 is first positioned in contact with the protrusion 15 of the female screw part, and when the bolt 20 is rotated as it is,
- the standing surface 22 represents a state in which the rising surface 22 fits well without colliding between the rising surface 16 on the starting end side of the protrusion 15 and the rising surface 18 of the starting end portion of the female screw 13 of the female screw part.
- the male screw 21 of the obliquely inserted bolt 20 is normally screwed with the female screw 13 of the female screw component regardless of the insertion direction of the bolt 20.
- the standing surface 22 does not collide with the standing surface 16 of the projection 15 of the female screw part and the standing surface 18 of the screw thread start end.
- the bolt 20 is provided with the guide portion 23 at the tip portion, it is preferable because the posture correction effect is added by the guide portion 23 coming into contact with the female screw 13 of the female screw component.
- the unthreaded portion 14 near the end face 11 of the female screw part is a cylindrical surface coaxial with the central axis of the female screw part.
- the unthreaded portion 14 can be tapered.
- protrusion 15 and the standing surface 18 of a screw thread start end may become the same plane, as shown in FIG.
- the starting end of the protrusion 15 needs to eliminate the incomplete screw portion or be as short as possible, but there may be some incomplete screw portion at the screw thread starting end.
- the shape of the rear end side of the protrusion 15 is not particularly limited, and may be a slope 17 as shown in FIG.
- the starting end position of the female screw 13 of the female screw component body 10 and the starting end position of the protrusion 15 are in the same position in the circumferential direction, and the rising surface 16 of the protrusion 15 and the rising surface 18 of the screw thread starting end are the same.
- the circumferential phase angle between them was zero.
- a large screwless space is formed on the bolt insertion side inside the female screw component body, so that play of the bolt 20 inside the female screw component body is increased.
- the phase angle ⁇ is preferably in the range of ⁇ (60 to 120) degrees, and in the illustrated case, the phase angle ⁇ is 90 degrees.
- the screwless space formed on the bolt insertion side inside the female screw component main body can be made smaller than those in which the phase angle ⁇ is zero, that is, in which these start end positions are matched. Therefore, as shown in FIG. 13B, the function of the projection 15 to guide the male screw 21 of the bolt 20 is enhanced, and there is an advantage that the inclination of the bolt can be further easily corrected.
- the present invention is not limited to weld nuts and can be widely applied to other female screw parts.
- the material is not necessarily limited to steel, and may be other materials such as aluminum and cast iron.
- the present invention is effective not only when a bolt is screwed to a fixed female screw part, but also when a female screw part is screwed to a fixed bolt.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Connection Of Plates (AREA)
Abstract
Description
図4は本発明を雌ねじ部品であるウエルドナットに適用した実施形態を示す斜視図、図5はその要部の拡大図、図6はA-A断面図、図7はB-B断面図である。10は雌ねじ部品本体、11はそのボルト挿入側の端面(座面)、12は端面11に形成された溶着用突出部である。雌ねじ部品本体10の内周面には雌ねじ13が形成されているが、端面11から少なくとも1ピッチ分だけは雌ねじ13がないねじなし部14となっている。
図8、図9は何れも本発明の雌ねじ部品を突起15を通る平面で切断した断面図であり、雌ねじ部品上端の左側が突起15である。図8はボルト20が突起15のある方向から斜めに挿入された状態を示している。この場合には、ボルト20のおねじ21のフランク面が最初に雌ねじ部品の突起15に接触する。このため、図8中に矢印で示すようにさらにボルト20を回転させるとボルト20のおねじ21は雌ねじ部品の雌ねじ13と正常に螺合し、ボルト20のねじ山始端の起立面22と、雌ねじ部品の突起15の起立面16及びねじ山始端の起立面18とがぶつかることはない。
11 ボルト挿入側の端面
12 溶着用突出部
13 雌ねじ
14 ねじなし部
15 突起
16 起立面
17 斜面
18 起立面
20 ボルト
21 おねじ
22 起立面
23 ガイド部
θ 位相角
Claims (6)
- 雌ねじを備えた雌ねじ部品本体の内周面に、ボルト挿入側の端面から少なくとも1ピッチ分だけねじなし部を形成するとともに、該ねじなし部への雌ねじのつる巻き線の延長線上に、突起を形成したことを特徴とする雌ねじ部品。
- 突起がねじ山であって、その始端側の不完全ねじ部をなくするか、短くしたものであることを特徴とする請求項1記載の雌ねじ部品。
- 雌ねじ部品本体の雌ねじの始端位置と、突起の始端位置とを周方向にずらせたことを特徴とする請求項1記載の雌ねじ部品。
- 雌ねじ部品本体の雌ねじの始端を不完全ねじ部のない起立面としたことを特徴とする請求項1記載の雌ねじ部品。
- 請求項1~4の何れかに記載の雌ねじ部品を、おねじの切り始め位置に不完全ねじ部のないボルトと組み合わせたことを特徴とする締結部品。
- ボルトが先端部にガイド部を備えたものであることを特徴とする請求項5記載の締結部品。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/201,097 US9004834B2 (en) | 2009-03-16 | 2010-03-15 | Female screw component and fastening component utilizing the same |
EP10753272.3A EP2410191B1 (en) | 2009-03-16 | 2010-03-15 | Female screw component and fastening component utilizing same |
CN2010800120111A CN102356244B (zh) | 2009-03-16 | 2010-03-15 | 内螺纹部件及使用它的紧固部件 |
JP2011504742A JP5582616B2 (ja) | 2009-03-16 | 2010-03-15 | 雌ねじ部品及びこれを用いた締結部品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-062598 | 2009-03-16 | ||
JP2009062598 | 2009-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010106775A1 true WO2010106775A1 (ja) | 2010-09-23 |
Family
ID=42739443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/001817 WO2010106775A1 (ja) | 2009-03-16 | 2010-03-15 | 雌ねじ部品及びこれを用いた締結部品 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9004834B2 (ja) |
EP (1) | EP2410191B1 (ja) |
JP (1) | JP5582616B2 (ja) |
KR (1) | KR101552379B1 (ja) |
CN (1) | CN102356244B (ja) |
WO (1) | WO2010106775A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5265802B1 (ja) * | 2012-10-04 | 2013-08-14 | 株式会社双和 | 取付け具 |
CN107030324A (zh) * | 2017-05-12 | 2017-08-11 | 株洲钻石切削刀具股份有限公司 | 一种切削刀具 |
TWI615555B (zh) * | 2013-11-04 | 2018-02-21 | 鴻海精密工業股份有限公司 | 螺紋緊固件及其螺接方法 |
CN109223096A (zh) * | 2018-11-30 | 2019-01-18 | 重庆西山科技股份有限公司 | 防止旋转卡死的医用磨削刀具 |
Families Citing this family (9)
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US9810029B2 (en) | 2011-01-26 | 2017-11-07 | Bly Ip Inc. | Drill string components resistant to jamming |
US9850723B2 (en) | 2011-01-26 | 2017-12-26 | Bly Ip Inc. | Drill string components having multiple-thread joints |
US20130220636A1 (en) * | 2011-01-26 | 2013-08-29 | Longyear Tm, Inc. | Drill string components resistant to jamming |
US10557316B2 (en) | 2011-01-26 | 2020-02-11 | Bly Ip Inc. | Drill string components having multiple-thread joints |
DE102014108705A1 (de) * | 2014-06-20 | 2015-12-24 | Aesculap Ag | Pedikelschraube mit Einschraubhilfe |
US11268607B1 (en) | 2016-02-17 | 2022-03-08 | Helix Linear Technologies | Lead screw nuts having threads formed from different materials |
DE102016113495A1 (de) * | 2016-07-21 | 2018-01-25 | Aesculap Ag | Pedikelschraubensystem mit einer Verriegelungsschraube mit Gewindeanschnitt |
USD1016599S1 (en) * | 2017-02-17 | 2024-03-05 | Helix Linear Technologies | Nut |
CN108112097B (zh) * | 2017-12-18 | 2024-07-09 | 开封平煤新型炭材料科技有限公司 | 一种石墨电极连接标示定位方法及装置 |
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2010
- 2010-03-15 CN CN2010800120111A patent/CN102356244B/zh not_active Expired - Fee Related
- 2010-03-15 KR KR1020117021369A patent/KR101552379B1/ko active IP Right Grant
- 2010-03-15 US US13/201,097 patent/US9004834B2/en not_active Expired - Fee Related
- 2010-03-15 JP JP2011504742A patent/JP5582616B2/ja active Active
- 2010-03-15 WO PCT/JP2010/001817 patent/WO2010106775A1/ja active Application Filing
- 2010-03-15 EP EP10753272.3A patent/EP2410191B1/en not_active Not-in-force
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JPH0798009A (ja) * | 1993-05-20 | 1995-04-11 | General Electric Co <Ge> | 締結装置 |
JPH10274227A (ja) * | 1997-03-28 | 1998-10-13 | Aoyama Seisakusho Co Ltd | 焼付き防止ボルト・ナット |
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JP2005030580A (ja) * | 2003-07-10 | 2005-02-03 | Meidoo:Kk | ナット及び該ナットの製造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5265802B1 (ja) * | 2012-10-04 | 2013-08-14 | 株式会社双和 | 取付け具 |
TWI615555B (zh) * | 2013-11-04 | 2018-02-21 | 鴻海精密工業股份有限公司 | 螺紋緊固件及其螺接方法 |
CN107030324A (zh) * | 2017-05-12 | 2017-08-11 | 株洲钻石切削刀具股份有限公司 | 一种切削刀具 |
CN109223096A (zh) * | 2018-11-30 | 2019-01-18 | 重庆西山科技股份有限公司 | 防止旋转卡死的医用磨削刀具 |
CN109223096B (zh) * | 2018-11-30 | 2024-05-28 | 重庆西山科技股份有限公司 | 防止旋转卡死的医用磨削刀具 |
Also Published As
Publication number | Publication date |
---|---|
KR20110128295A (ko) | 2011-11-29 |
CN102356244A (zh) | 2012-02-15 |
JPWO2010106775A1 (ja) | 2012-09-20 |
US20110318136A1 (en) | 2011-12-29 |
US9004834B2 (en) | 2015-04-14 |
CN102356244B (zh) | 2013-09-11 |
EP2410191B1 (en) | 2015-10-21 |
JP5582616B2 (ja) | 2014-09-03 |
EP2410191A4 (en) | 2012-11-14 |
EP2410191A1 (en) | 2012-01-25 |
KR101552379B1 (ko) | 2015-09-10 |
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