WO2022091362A1 - ねじ穴加工方法 - Google Patents
ねじ穴加工方法 Download PDFInfo
- Publication number
- WO2022091362A1 WO2022091362A1 PCT/JP2020/040880 JP2020040880W WO2022091362A1 WO 2022091362 A1 WO2022091362 A1 WO 2022091362A1 JP 2020040880 W JP2020040880 W JP 2020040880W WO 2022091362 A1 WO2022091362 A1 WO 2022091362A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- screw hole
- shaped portion
- auxiliary member
- hole
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003754 machining Methods 0.000 title claims abstract description 4
- 238000003672 processing method Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 description 4
- 239000008397 galvanized steel Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
- F16B37/064—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting with the use of separate rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/26—Manually-operated thread-cutting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/12—Laminated parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
- Y10T29/49943—Riveting
Definitions
- This disclosure relates to a method of machining a screw hole in a plate-shaped portion of a work piece.
- Patent Document 2 Japanese Patent Application Laid-Open No. 2004-148341
- the method of joining welding nuts requires welding work, so there is a concern that the number of processes will increase.
- the workpiece is made of a galvanized steel sheet, there is a problem that the welding workability is deteriorated because pore defects and spatter occur in the welding work.
- the present disclosure has been made to solve such a problem, and an object of the present disclosure is to provide a screw hole drilling method capable of forming a screw hole in a plate-shaped portion of a workpiece with a simple configuration. It is to be.
- the method of drilling a screw hole in a workpiece having a plate-shaped portion is to prepare a flat plate-shaped auxiliary member and to provide the plate-shaped portion with an inner diameter smaller than the outer diameter of the screw hole.
- FIG. 3 is a schematic cross-sectional view taken along the line II-II of FIG. It is a figure which shows the relationship between the thickness of the plate-shaped part of a work piece, and the outer diameter of a screw hole which can be formed. It is a figure for demonstrating the screw hole processing method which concerns on this embodiment. It is a figure for demonstrating the screw hole processing method which concerns on this embodiment. It is a figure for demonstrating the screw hole processing method which concerns on this embodiment. It is a figure for demonstrating the screw hole processing method which concerns on this embodiment.
- FIG. 1 is an external view of a work piece to which the screw hole processing method according to the present embodiment is applied.
- FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG.
- the workpiece W has a plate-shaped portion 1.
- the plate-shaped portion 1 constitutes at least a part of the workpiece W.
- the plate-shaped portion 1 is a metal plate having a flat plate shape, and has a first surface 1A and a second surface 1B opposite to the first surface 1A.
- the plate-shaped portion 1 is formed of, for example, a hot-dip galvanized steel plate.
- the thickness H1 of the plate-shaped portion 1 is about 1.5 mm to 3 mm.
- the workpiece W constitutes, for example, at least a part of a housing for accommodating an electric device.
- the second surface 1B of the plate-shaped portion 1 can be a mounting surface for an electric device. By applying the electric device to the second surface 1B and screwing it, the electric device can be fixed to the second surface 1B.
- Auxiliary member 2 is fixed to the first surface 1A of the plate-shaped portion 1.
- the auxiliary member 2 has a rectangular flat plate shape, and has a smaller flat area than the plate-shaped portion 1.
- the auxiliary member 2 is fixed to the first surface 1A of the plate-shaped portion 1 by the fastening members 3A and 3B.
- fastening members 3A and 3B For example, rivets can be used for the fastening members 3A and 3B. Screws such as countersunk screws may be used for the fastening members 3A and 3B. When countersunk screws are used for the fastening members 3A and 3B, it is possible to prevent the head of the screw from protruding from the second surface 1B (mounting surface).
- a method of fixing the auxiliary member 2 to the plate-shaped portion 1 in addition to the method of fastening the auxiliary member 2 to the plate-shaped portion 1, a method of adhering the auxiliary member 2 to the plate-shaped portion 1 or a method of adhering the auxiliary member 2 to the plate-shaped portion 1 or the plate-shaped portion 1 and the auxiliary member 2 are used.
- a method of caulking and joining the members 2 or the like can be adopted.
- Screw holes 10 and 20 are formed in the plate-shaped portion 1 and the auxiliary member 2, respectively.
- the screw holes 10 and 20 form a female screw portion that overlaps with a male screw portion (not shown).
- Each threaded hole (female threaded portion) has ridges and valleys that are repeated at a constant pitch.
- the diameter D1 of the virtual cylinder in contact with the valley bottom of the screw hole is referred to as "outer diameter”
- the diameter D2 of the virtual cylinder in contact with the peak of the screw hole is also referred to as "inner diameter”.
- the outer diameter D1 of the screw hole 10 and the outer diameter D1 of the screw hole 20 are equal, and the inner diameter D2 of the screw hole 10 and the inner diameter D2 of the screw hole 20 are equal.
- the screw holes 10 and the screw holes 20 are arranged concentrically with the auxiliary member 2 fixed to the plate-shaped portion 1.
- the screw hole 10 and the screw hole 20 are integrally formed by tapping the auxiliary member 2 and the plate-shaped portion 1 in a state where the auxiliary member 2 is fixed to the plate-shaped portion 1. Can be formed.
- the auxiliary member 2 is fastened to the plate-shaped portion 1 in the first portion 2A and the second portion 2B arranged with the screw hole 20 interposed therebetween. It is preferable that the first portion 2A and the second portion 2B are arranged at symmetrical positions with the screw hole 20 interposed therebetween. In the example of FIG. 2, the first portion 2A and the second portion 2B are arranged at positions equidistant L1 from the center of the screw hole 20.
- the number of fastening portions between the auxiliary member 2 and the plate-shaped portion 1 may be 3 or more. Even when the number of fastening portions is 3 or more, it is preferable that the fastening portions having 3 or more are provided at equidistant positions from the center of the screw hole 20.
- FIG. 3 is a plot of the upper limit of the outer diameter of the screw hole that can be formed with respect to the thickness H1 of the hot-dip galvanized steel sheet. The relationship shown in FIG. 3 can be created in advance by a preliminary experiment with respect to the plate-shaped portion 1 of the workpiece W.
- the upper limit of the outer diameter D1 of the screw hole that can be formed in the plate-shaped portion 1 becomes smaller.
- the workpiece W constitutes the housing of the electric device
- the thickness H1 of the plate-shaped portion 1 is about 2 to 3 mm
- the upper limit of the outer diameter D1 of the screw hole that can be formed in the plate-shaped portion 1 is about 4 to 5 mm. Therefore, there arises a problem that a male screw having a larger outer diameter cannot be used in order to secure the mounting strength of the electric device.
- a method of joining a weld nut to the metal plate by welding or a method of joining a nut to the metal plate is used as a method of forming a screw hole having an outer diameter larger than the upper limit value for a thin metal plate.
- a method of joining a weld nut to the metal plate by welding or a method of joining a nut to the metal plate is used as a method of forming a screw hole having an outer diameter larger than the upper limit value for a thin metal plate.
- the method of tightening and attaching is adopted.
- the nut With the method of crimping the nut, the nut may spin freely due to the specified torque depending on the mounting condition. In order to prevent the nut from spinning, it is necessary to weld the nut. In addition, it is necessary to perform a plating process on the damaged welded portion, and there is a concern that the process will increase. Further, in the method of caulking and attaching the nut to the metal plate, the end portion on the opposite side to the nut side protrudes from the surface of the metal plate, which may hinder the attachment of the electric device to the surface.
- the flat plate-shaped auxiliary member 2 is partially fixed to the formed portion of the screw hole 10 in the plate-shaped portion 1 to obtain a desired outer shape. Achieve a thickness that allows the formation of screw holes with a diameter.
- the screw hole drilling method according to the present embodiment will be described with reference to FIGS. 4 to 6.
- the workpiece W and the auxiliary member 2 are prepared.
- a pilot hole 12 is formed in the plate-shaped portion 1 of the workpiece W at a position where the screw hole 10 is formed.
- Through holes 14A and 14B for fastening the auxiliary member 2 are further formed in the plate-shaped portion 1.
- the inner diameter of the prepared hole 12 is equal to or smaller than the inner diameter of the screw hole 10.
- a pilot hole 22 is formed in the auxiliary member 2 at a position where the screw hole 20 is formed.
- the auxiliary member 2 is further formed with through holes 24A and 24B for fastening to the plate-shaped portion 1.
- the inner diameter of the prepared hole 22 is equal to or smaller than the inner diameter of the screw hole 20 (that is, the inner diameter of the screw hole 10).
- the thickness H2 of the auxiliary member 2 is determined based on the outer diameter of the screw hole 10 and the thickness H1 of the plate-shaped portion 1. Specifically, by referring to the relationship shown in FIG. 3, the thickness H * of the plate-shaped portion 1 required to form the screw hole having the desired outer diameter D1 is determined. For example, when forming a screw hole 10 having an outer diameter of 10 mm, the required thickness H * of the plate-shaped portion 1 is about 4.5 mm. Therefore, the thickness H2 of the auxiliary member 2 is set so that the total (H1 + H2) of the actual thickness H1 of the plate-shaped portion 1 and the thickness H2 of the auxiliary member 2 is equal to or larger than the required thickness H * of the plate-shaped portion 1. do.
- the through holes 14A and 14B of the plate-shaped portion 1 and the through holes 24A and 24B of the auxiliary member 2 are such that the prepared hole 10 and the prepared hole 20 are concentrically arranged in the plate-shaped portion 1.
- the auxiliary member 2 is placed on the first surface 1A, it is formed so as to overlap each other.
- the auxiliary member 2 is fixed to the plate-shaped portion 1.
- the auxiliary member 2 is fastened to the plate-shaped portion 1 by using the fastening members 3A and 3B.
- the fastening members 3A and 3B When rivets are used for the fastening members 3A and 3B, the first rivet is inserted into the through hole 14A and the through hole 24A, and the second rivet is inserted into the through hole 14B and the through hole 24B. By crimping each of the second rivets, the auxiliary member 2 can be fastened to the plate-shaped portion 1.
- the tap 50 is inserted through the prepared hole 12 and the prepared hole 22, and the inside of the prepared hole 12 and 22 is tapped.
- Well-known taps 50 and tapping can be used.
- the screw hole 10 and the screw hole 20 as shown in FIG. 2 are formed in the plate-shaped portion 1 and the auxiliary member 2.
- the screw hole processing method it is possible to form a screw hole in a plate-shaped portion of a workpiece without using a welding operation. According to this, a screw hole can be easily formed even in a plate-shaped portion formed of a material that is difficult to weld. Further, since it is not necessary to attach the caulking nut, it is possible to avoid the situation where the nut runs idle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
Description
図4を参照して、最初に、被加工物Wおよび補助部材2が準備される。被加工物Wの板状部分1には、ねじ穴10が形成される位置に下穴12が形成される。板状部分1にはさらに、補助部材2を締結するための貫通穴14A,14Bが形成される。下穴12の内径は、ねじ穴10の内径以下である。
Claims (5)
- 板状部分を有する被加工物にねじ穴を加工する方法であって、
平板状の補助部材を準備するステップと、
前記板状部分に、前記ねじ穴の外径よりも小さい内径を有する第1の下穴を形成するステップと、
前記補助部材に、前記ねじ穴の外径よりも小さい内径を有する第2の下穴を形成するステップと、
前記第1の下穴および前記第2の下穴が同心となるように、前記板状部分に前記補助部材を固定するステップと、
前記第1の下穴および前記第2の下穴にタップを挿通することにより、前記板状部分および前記補助部材に前記ねじ穴を形成するステップとを備える、ねじ穴加工方法。 - 前記準備するステップは、
前記ねじ穴の外径に応じて、前記板状部分および前記補助部材の合計厚みを決定するステップと、
前記合計厚みと前記板状部分の厚みとの差分の厚みを有する前記補助部材を準備するステップを含む、請求項1に記載のねじ穴加工方法。 - 前記固定するステップは、前記補助部材を、前記第1および第2の下穴を挟んで配置された第1の部分および第2の部分において前記板状部分に締結するステップを含む、請求項1または2に記載のねじ穴加工方法。
- 前記締結するステップは、前記第1の部分および前記第2の部分を、前記第2の下穴を挟んで対称な位置に配置するステップをさらに含む、請求項3に記載のねじ穴加工方法。
- 前記締結するステップは、リベットを用いて前記補助部材を前記板状部分に締結するステップを含む、請求項3または4に記載のねじ穴加工方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/779,668 US20220410296A1 (en) | 2020-10-30 | 2020-10-30 | Method for making screw hole |
PCT/JP2020/040880 WO2022091362A1 (ja) | 2020-10-30 | 2020-10-30 | ねじ穴加工方法 |
CN202080082655.1A CN114761167A (zh) | 2020-10-30 | 2020-10-30 | 螺纹孔加工方法 |
KR1020227017384A KR20220088467A (ko) | 2020-10-30 | 2020-10-30 | 나사 구멍 가공 방법 |
JP2021507864A JP7132428B1 (ja) | 2020-10-30 | 2020-10-30 | ねじ穴加工方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2020/040880 WO2022091362A1 (ja) | 2020-10-30 | 2020-10-30 | ねじ穴加工方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022091362A1 true WO2022091362A1 (ja) | 2022-05-05 |
Family
ID=81383828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2020/040880 WO2022091362A1 (ja) | 2020-10-30 | 2020-10-30 | ねじ穴加工方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220410296A1 (ja) |
JP (1) | JP7132428B1 (ja) |
KR (1) | KR20220088467A (ja) |
CN (1) | CN114761167A (ja) |
WO (1) | WO2022091362A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5091196U (ja) * | 1973-12-20 | 1975-08-01 | ||
JPS55161536A (en) * | 1979-06-05 | 1980-12-16 | Tamura Electric Works Ltd | Production of base plate or the like |
WO2015012236A1 (ja) * | 2013-07-25 | 2015-01-29 | 新日鐵住金株式会社 | ねじ穴付き金属板、筐体、及び、ねじ穴付き金属板の製造方法 |
CN105414685A (zh) * | 2015-12-09 | 2016-03-23 | 重庆光大机械厂有限公司 | 环形攻丝套扣装置 |
WO2018193937A1 (ja) * | 2017-04-17 | 2018-10-25 | パナソニックIpマネジメント株式会社 | リベットナットおよびその製造方法 |
JP2018179102A (ja) * | 2017-04-10 | 2018-11-15 | トヨタ自動車株式会社 | 接合方法および接合装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB792215A (en) * | 1956-07-09 | 1958-03-19 | John Ryan Mckee Jr | Improvements relating to composite washers |
DE2817217A1 (de) * | 1978-04-20 | 1979-10-31 | Trumpf Maschinen Ag | Werkzeugmaschine |
SU1368108A1 (ru) * | 1985-02-06 | 1988-01-23 | Харьковский Филиал Головного Специального Производственного Конструкторско-Технологического Бюро По Рациональному Применению Режущего Инструмента | Плашка дл нарезани резьбы с переменным наружным диаметром |
JPH087134Y2 (ja) * | 1991-01-10 | 1996-03-04 | ポップリベット・ファスナー株式会社 | 軟質材用ブラインドリベット |
US5174007A (en) * | 1992-01-15 | 1992-12-29 | Leslie Fitz | Weldless panel patching method |
JPH06185518A (ja) * | 1992-12-15 | 1994-07-05 | Kel Corp | 板材へのナット取付構造および方法 |
JPH10220445A (ja) * | 1997-02-12 | 1998-08-21 | Tetsuo Takahashi | 同芯ボルトナット |
JP2004148341A (ja) | 2002-10-29 | 2004-05-27 | Panahome Corp | ナットのかしめ方法 |
JP5613521B2 (ja) | 2010-10-08 | 2014-10-22 | 新日鐵住金株式会社 | 溶接ナット部を有する自動車用構造部材及びその製造方法 |
FR2974606B1 (fr) * | 2011-04-29 | 2013-06-14 | Alex Grojean | Boulon a sertir en aveugle |
JP2018179094A (ja) * | 2017-04-10 | 2018-11-15 | トヨタ自動車株式会社 | 接合方法および接合構造 |
-
2020
- 2020-10-30 KR KR1020227017384A patent/KR20220088467A/ko not_active Application Discontinuation
- 2020-10-30 CN CN202080082655.1A patent/CN114761167A/zh active Pending
- 2020-10-30 WO PCT/JP2020/040880 patent/WO2022091362A1/ja active Application Filing
- 2020-10-30 US US17/779,668 patent/US20220410296A1/en active Pending
- 2020-10-30 JP JP2021507864A patent/JP7132428B1/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5091196U (ja) * | 1973-12-20 | 1975-08-01 | ||
JPS55161536A (en) * | 1979-06-05 | 1980-12-16 | Tamura Electric Works Ltd | Production of base plate or the like |
WO2015012236A1 (ja) * | 2013-07-25 | 2015-01-29 | 新日鐵住金株式会社 | ねじ穴付き金属板、筐体、及び、ねじ穴付き金属板の製造方法 |
CN105414685A (zh) * | 2015-12-09 | 2016-03-23 | 重庆光大机械厂有限公司 | 环形攻丝套扣装置 |
JP2018179102A (ja) * | 2017-04-10 | 2018-11-15 | トヨタ自動車株式会社 | 接合方法および接合装置 |
WO2018193937A1 (ja) * | 2017-04-17 | 2018-10-25 | パナソニックIpマネジメント株式会社 | リベットナットおよびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022091362A1 (ja) | 2022-05-05 |
US20220410296A1 (en) | 2022-12-29 |
CN114761167A (zh) | 2022-07-15 |
JP7132428B1 (ja) | 2022-09-06 |
KR20220088467A (ko) | 2022-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9151307B2 (en) | Assembly joined by a flow drill screw | |
KR102063126B1 (ko) | 블라인드 리벳 볼트 | |
US20050097722A1 (en) | Fastener device for fastening two components, a combination of the fastener device with the two components and a method of making a joint between two components | |
US20190316636A1 (en) | Propeller Shaft and Yoke Structure of Universal Joint Used for the Propeller Shaft | |
EP1687544A1 (en) | Fastening structure, fastening method and fastening member | |
US20190353195A1 (en) | Floating, captive arrangement of a connection element on a component | |
WO2022091362A1 (ja) | ねじ穴加工方法 | |
US6648412B2 (en) | Automobile vehicle seat featuring a hinge mechanism attached to a flange on the seat back or seat pan by a joining system | |
JP2007239960A (ja) | 鋼材の接合構造および接合方法ならびに鉄骨造の建築物 | |
JP4096994B1 (ja) | 鋼板接合方法、及び、該方法に用いるボルト仮固定ナット | |
JP2022531405A (ja) | ブラインドリベットナット、ブラインドリベットナット配置、及び取り付け方法 | |
KR20230028276A (ko) | 이재 접합 구조 및 이재 접합 방법 | |
KR101594945B1 (ko) | 리벳 너트 유닛 및 그 장착방법 | |
JP6765423B2 (ja) | 同一高さで実装する部品保持ファスナー | |
JPH0261644B2 (ja) | ||
JP4177126B2 (ja) | 板材の締結具および板材の締結方法 | |
JP3222805U (ja) | 接合用ボルト | |
JP6925851B2 (ja) | ルーバーシステム及びその製造方法 | |
US20190353196A1 (en) | Floating, captive arrangement of a connection element on a component | |
CN217582822U (zh) | 螺母防转装置和包括该螺母防转装置的紧固装置 | |
JP2007032178A (ja) | 建築構造材のボルト接合方法 | |
US11940000B2 (en) | Partially-threaded projection weld nut | |
KR20060098060A (ko) | 유동형 블록 너트 어셈블리 | |
KR20230147714A (ko) | 다목적 파일럿이 있는 셀프-클린칭 및 셀프-피어싱 건축 요소 | |
CN102029452B (zh) | 焊接作业的防止溢锡方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2021507864 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20227017384 Country of ref document: KR Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20959880 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20959880 Country of ref document: EP Kind code of ref document: A1 |