JP2001280332A - Caulking structure for bolt - Google Patents
Caulking structure for boltInfo
- Publication number
- JP2001280332A JP2001280332A JP2000089276A JP2000089276A JP2001280332A JP 2001280332 A JP2001280332 A JP 2001280332A JP 2000089276 A JP2000089276 A JP 2000089276A JP 2000089276 A JP2000089276 A JP 2000089276A JP 2001280332 A JP2001280332 A JP 2001280332A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- side wall
- hole
- bolt head
- counterbore
- 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.)
- Withdrawn
Links
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- Connection Of Plates (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ボルト、特に破断
に際してボルト頭部の落下を防止する必要のあるボルト
のかしめ構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt, and more particularly, to a bolt caulking structure which is required to prevent a bolt head from dropping when broken.
【０００２】[0002]
【従来の技術】締結後のボルトが何らかの原因で破断し
た場合、それは通常ボルトの首下部の破断が多いが、破
断したボルト頭部が落下すると締結されていた装置の運
転上の支障を来すおそれが有る場合がある。例えば、図
３に示す原子炉のバッフルフォーマーボルト０３がその
一例であり、図３は従来の原子炉内のフォーマー部とバ
ッフル板とのバッフルフォーマーボルト締結部の要部断
面説明図である。2. Description of the Related Art When a bolt that has been tightened breaks for some reason, it usually breaks at the lower part of the neck of the bolt, but when the broken bolt head falls, the operation of the fastened device is hindered. There may be a risk. For example, a baffle former bolt 03 of a nuclear reactor shown in FIG. 3 is an example, and FIG. 3 is a sectional view of a main part of a baffle former bolt fastening portion between a former part and a baffle plate in a conventional reactor. .
【０００３】原子炉内のフォーマー部１とバッフル板２
とを締結するバッフルフォーマーボルト０３は、過酷な
使用条件により万一ボルトの首下部等が破断した場合に
も、原子炉は一定期間の連続した運転を支障無く行なえ
る必要があるため、ボルト頭部０４が炉内に落下するこ
とを防止しなければならない。[0003] A former part 1 and a baffle plate 2 in a nuclear reactor
The baffle former bolt 03, which fastens the bolts, is required to be able to operate the reactor continuously for a certain period of time without any trouble even if the lower part of the bolt etc. is broken due to severe use conditions. The head 04 must be prevented from falling into the furnace.
【０００４】従来は、図３に示すようにボルト頭部０４
をボルト用の座ぐり穴０５に座金状の止め金具０６で溶
接して固定し、万一ボルトの首下等が破断した場合にも
ボルト頭０４がその位置に留まるようにしていた。Conventionally, as shown in FIG.
Was fixed to the bolt counterbore hole 05 by welding with a washer-shaped fastener 06 so that the bolt head 04 would stay in that position even if the bolt neck or the like was broken.
【０００５】なお、図３にはバッフルフォーマーボルト
０３を六角穴ボルトで示したが、通常の六角頭ボルトの
場合も同様である。Although the baffle former bolts 03 are shown as hexagonal bolts in FIG. 3, the same applies to ordinary hexagonal head bolts.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
バッフルフォーマーボルト０３の場合においても原子炉
の定期検査において首下等が破断したボルトは交換が必
要となるが、上記のような従来のバッフルフォーマーボ
ルト０３の固定構造では、交換が困難で時間を要すた
め、交換が容易で交換時間を短縮できるバッフルフォー
マーボルト０３を固定する構造が求められていた。However, even in the case of the baffle former bolt 03 described above, the bolt whose neck or the like has been broken during the periodic inspection of the reactor needs to be replaced. In the structure for fixing the former bolts 03, it is difficult and time-consuming to replace them. Therefore, a structure for fixing the baffle former bolts 03 that can be easily replaced and shorten the replacement time has been required.
【０００７】本発明は、締結後にボルトの破断が生じて
もボルト頭部の落下を防止でき、また、ボルトの交換が
容易なボルトのかしめ構造を提供することを課題とする
ものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a bolt caulking structure which can prevent the bolt head from dropping even if the bolt breaks after fastening and can easily replace the bolt.
【０００８】[0008]
【課題を解決するための手段】本発明はかかる課題を解
決するためになされたものであり、その手段として、ボ
ルト頭部の下部に張り出したフランジ部と、ボルト穴の
上部に設けられ前記ボルト頭部とフランジ部が没する座
ぐり穴と、同座ぐり穴の側壁に設けられた環状溝とを備
えるとともに、前記ボルト頭部を挿通する穴を底部中央
に有し、同底部の外周に前記座ぐり穴の側壁に近接する
環状側壁部を有し、同環状側壁部は外側に突出する凸部
を有し、前記底部は前記穴から環状側壁部にかけて下向
きに凸の湾曲断面をなすかしめ金具を備え、同かしめ金
具を前記ボルト穴に挿入され締結されたボルトの前記ボ
ルト頭部に挿通させ、前記底部を前記フランジ部に圧接
させて前記凸部を前記環状溝に嵌入させてなることを特
徴とするボルトのかしめ構造を提供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes means for solving the above-mentioned problems. As a means, a flange projecting from a lower portion of a bolt head and a bolt provided above a bolt hole are provided. It has a counterbore in which the head and the flange part sink, and an annular groove provided in the side wall of the counterbore, and has a hole at the bottom center for inserting the bolt head. An annular side wall portion is provided near the side wall of the counterbore hole, the annular side wall portion has an outwardly projecting convex portion, and the bottom portion has a downwardly convex curved cross section from the hole to the annular side wall portion. A metal fitting, wherein the caulking metal is inserted into the bolt hole and inserted into the bolt head of the tightened bolt, the bottom is pressed against the flange, and the convex is fitted into the annular groove. Characterized by bolts There is provided a closing structure.
【０００９】上記の手段によれば、 ボルトがその首下
部等で破断することがあっても、ボルト頭部はフランジ
部ともどもかしめ金具によって座ぐり穴内にかしめられ
た状態のため、ボルト頭部は落下せず、落下により締結
されていた装置の運転上の支障を生ずるおそれがない。
また、破断したボルト頭部はかしめ金具によって弾性的
に座ぐり穴内に保持されるので、運転にともない振動に
よる移動、摩耗、破損等を起こすことがない。そして、
かしめ金具は弾性的に座ぐり穴に嵌装されているだけで
あるから、極めて簡単に脱着でき、ボルトの交換は容易
となり所用の時間は大幅に短縮することができる。According to the above-mentioned means, even if the bolt is broken at the lower part of the neck or the like, the bolt head is swaged into the counterbore by the swaging metal fitting with the flange portion. There is no danger that the device will not fall and will not hinder the operation of the device fastened by the fall.
Further, since the broken bolt head is elastically held in the counterbore by the caulking fitting, there is no occurrence of movement, wear, breakage, or the like due to vibration during operation. And
Since the caulking fitting is only elastically fitted in the counterbore, it can be attached and detached very easily, the bolt can be easily replaced, and the required time can be greatly reduced.
【００１０】[0010]
【発明の実施の形態】図１および図２に基づき本発明の
実施の一形態に係るボルトのかしめ構造を説明する。図
１は、原子炉内のフォーマー部とバッフル板とのバッフ
ルフォーマーボルト締結部の要部断面説明図である。図
２は本実施の形態のかしめ金具の説明図であり、（ａ）
は図１中Ａ−Ａ矢視による平面図、（ｂ）は（ａ）中Ｂ
−Ｂ矢視による断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bolt caulking structure according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory cross-sectional view of a main part of a baffle former bolt fastening part between a former part and a baffle plate in a nuclear reactor. FIG. 2 is an explanatory view of a caulking fitting according to the present embodiment, and FIG.
1 is a plan view taken along the line AA in FIG. 1, and FIG.
It is sectional drawing by the -B arrow.
【００１１】図１において、３はバッフルフォーマーボ
ルトであり、ボルト頭部４は六角部をなし、その下には
側方に張り出したフランジ部８を一体的に有しており、
ボルト頭部４はフランジ部８とともにバッフル板２のボ
ルト穴７の上部に設けられた座ぐり穴５内に没入し、図
示しないバッフルフォーマーボルト３の雄ねじ部はフォ
ーマー部の雌ねじ部と螺合締結している。In FIG. 1, reference numeral 3 denotes a baffle former bolt, a bolt head 4 has a hexagonal portion, and a flange portion 8 extending laterally below the hexagonal portion is integrally formed below the hexagonal portion.
The bolt head 4 is immersed together with the flange portion 8 into a counterbore hole 5 provided above the bolt hole 7 of the baffle plate 2, and a male thread portion of a baffle former bolt 3 (not shown) is screwed with a female thread portion of the former portion. Have concluded.
【００１２】１０は座ぐり穴５内に嵌装され、バッフル
フォーマーボルト３のボルト頭部４を座ぐり穴５内にか
しめて固定するかしめ金具であり、図２に嵌装前の状態
を示す。Numeral 10 denotes a caulking fitting which is fitted in the counterbore 5 and fixes the bolt head 4 of the baffle former bolt 3 in the counterbore 5. FIG. 2 shows a state before the fitting. Show.
【００１３】図２に示すように、かしめ金具１０は、中
央にバッフルフォーマーボルト３のボルト頭部４の六角
部を挿通する六角穴１１を有する底部１２と、底部１２
の周囲に連続する環状側壁部１３からなっており、底部
１２は六角穴１１から環状側壁部１３にかけて下方に向
けて凸に湾曲した断面をなしている。また環状側壁部１
３には側方に突出する凸部１３ａが環状に設けられてい
る。As shown in FIG. 2, the caulking fitting 10 has a bottom portion 12 having a hexagonal hole 11 at the center thereof for inserting a hexagonal portion of the bolt head 4 of the baffle former bolt 3, and a bottom portion 12.
The bottom portion 12 has a cross section that is convexly curved downward from the hexagonal hole 11 to the annular side wall portion 13. The annular side wall 1
3 is provided with a convex portion 13a projecting sideways in an annular shape.
【００１４】フォーマー部１とバッフル板２とがバッフ
ルフォーマーボルト３で締結された後、かしめ金具１０
は図１に示されるように、座ぐり穴５内のボルト頭部４
を六角穴１１に挿通させる。After the former part 1 and the baffle plate 2 are fastened with the baffle former bolts 3,
Is a bolt head 4 in a counterbore 5 as shown in FIG.
Through the hexagonal hole 11.
【００１５】そして、かしめ金具１０の底部１２と合わ
せた環状をなし下面が平坦な押さえ金具２０によって、
かしめ金具１０を座ぐり穴５内に押込むと、底部１２の
六角穴１１の周囲の下方に向けて凸に湾曲した断面が押
さえ金具２０によりフランジ部８に押し付けられ、底部
１２は平らに圧接されて弾性的にフランジ部８上に嵌ま
り込み、また、環状側壁部１３の凸部１３ａは座ぐり穴
５の側壁５ａに設けられた環状溝５ｂ内に弾性的に嵌入
し、以上によってボルト頭部４は座ぐり穴５内にかしめ
られる。[0015] Then, a holding metal member 20 having an annular shape combined with the bottom portion 12 of the caulking metal member 10 and having a flat lower surface is used.
When the caulking fitting 10 is pushed into the counterbore hole 5, a section curved downward and convex around the hexagonal hole 11 of the bottom 12 is pressed against the flange 8 by the holding metal 20, and the bottom 12 is pressed flat. Then, the protrusion 13a of the annular side wall portion 13 is elastically fitted into the annular groove 5b provided in the side wall 5a of the counterbore 5 so that the bolt is formed. The head 4 is swaged in the counterbore 5.
【００１６】上記のようなバッフルフォーマーボルト３
のかしめ構造においては、万一バッフルフォーマーボル
ト３がその首下部３ａ等で破断することがあっても、ボ
ルト頭部４はフランジ部８ともどもかしめ金具１０によ
って座ぐり穴５内にかしめられた状態のため、ボルト頭
部４は落下せず、落下により締結されていた装置の運転
上の支障を来すおそれがない。Baffle former bolt 3 as described above
In the swaging structure, even if the baffle former bolt 3 may be broken at the lower part 3a of the neck or the like, the bolt head 4 is swaged into the counterbore 5 by the swaging metal fitting 10 together with the flange 8. Because of the state, the bolt head 4 does not fall, and there is no danger that the fallen device will hinder the operation of the fastened device.
【００１７】また、かしめ金具１０はその底部１２がボ
ルト頭部４と座ぐり穴５の側壁５ａとに弾性的に押し付
けられ、その環状側壁部１３の凸部１３ａは座ぐり穴５
の側壁５ａの環状溝５ｂ内に弾性的に嵌まり込んでいる
ので、破断したボルト頭部４は破断後も座ぐり穴５内に
弾性的に保持され、運転にともない振動による移動、摩
耗、破損等を起こすことがない。The caulking fitting 10 has its bottom 12 elastically pressed against the bolt head 4 and the side wall 5a of the counterbore 5, and the projection 13a of the annular side wall 13 has the counterbore 5
Of the bolt 5 is elastically fitted in the annular groove 5b of the side wall 5a, so that the broken bolt head 4 is elastically held in the counterbore 5 even after the fracture, so that movement, wear, No damage is caused.
【００１８】そして破断したバッフルフォーマーボルト
３の交換に際しては、かしめ金具１０は弾性的に座ぐり
穴５に嵌装されているだけであるから、極めて簡単に適
宜な治具によって脱着でき、バッフルフォーマーボルト
３の交換は容易となり所用の時間は大幅に短縮すること
ができる。When the broken baffle former bolt 3 is replaced, the caulking fitting 10 is only elastically fitted in the counterbore 5 so that it can be easily attached and detached by an appropriate jig. The replacement of the former bolt 3 is facilitated, and the required time can be greatly reduced.
【００１９】以上、本発明の実施の一形態を説明した
が、上記の実施の形態に限定されるものではなく、本発
明の範囲内でその具体的構成に種々の変更を加えてもよ
いことは勿論である。Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various changes may be made to the specific configuration within the scope of the present invention. Of course.
【００２０】なお、実施の形態は、本発明の実施が極め
て有効なバッフルフォーマーボルト３を例に説明した
が、本発明はボルト破断時のボルト頭部の落下を防止し
たいボルト一般に有効に実施し得るものである。Although the embodiment has been described by taking as an example a baffle former bolt 3 in which the present invention is extremely effective, the present invention is generally effective for a bolt which is desired to prevent the bolt head from dropping when the bolt breaks. Can be done.
【００２１】また、上記実施の形態では、かしめ金具１
０の凸部１３ａが環状側壁部１３に環状に設けられたも
のを示したが、全周に環状に設けるものに限られず、間
欠的に設けたものでも、複数カ所に点設したものでもよ
く、かしめ金具１０の嵌装に十分なものを適宜設ければ
よい。In the above-described embodiment, the caulking fitting 1
Although the convex portion 13a of 0 is provided on the annular side wall portion 13 in an annular shape, the present invention is not limited to the annular portion provided on the entire circumference, and may be provided intermittently or may be provided at a plurality of locations. What is necessary is just to provide what is sufficient for fitting of the caulking fitting 10 suitably.
【００２２】また、上記実施の形態は、ボルトが六角頭
ボルトのものを示したが、ボルト頭部の下部に設けられ
たフランジ部まで上記のかしめ金具を押込み嵌装すれば
同様の作用効果を有するボルトのかしめ構造が得られる
のであって、ボルト頭部の種類形状を限定するものでは
ない。その場合、かしめ金具の底部中央の穴１１はボル
ト頭部に合わせた穴とすればよく、六角穴に限定されな
いことは勿論である。In the above embodiment, the bolt is a hexagonal head bolt. However, the same operation and effect can be obtained if the above-mentioned caulking fitting is pushed into the flange provided at the lower part of the bolt head. A bolted structure can be obtained, and the type and shape of the bolt head are not limited. In that case, the hole 11 at the bottom center of the caulking fitting may be a hole corresponding to the bolt head, and is not limited to a hexagonal hole.
【００２３】[0023]
【発明の効果】本発明によれば、ボルトのかしめ構造
を、ボルト頭部の下部に張り出したフランジ部と、ボル
ト穴の上部に設けられ前記ボルト頭部とフランジ部が没
する座ぐり穴と、同座ぐり穴の側壁に設けられた環状溝
とを備えるとともに、前記ボルト頭部を挿通する穴を底
部中央に有し、同底部の外周に前記座ぐり穴の側壁に近
接する環状側壁部を有し、同環状側壁部は外側に突出す
る凸部を有し、前記底部は前記穴から環状側壁部にかけ
て下向きに凸の湾曲断面をなすかしめ金具を備え、同か
しめ金具を前記ボルト穴に挿入され締結されたボルトの
前記ボルト頭部に挿通させ、前記底部を前記フランジ部
に圧接させて前記凸部を前記環状溝に嵌入させてなるよ
うに構成したので、ボルトがその首下部等で破断するこ
とがあっても、ボルト頭部はフランジ部ともどもかしめ
金具によって座ぐり穴内にかしめられた状態のため、ボ
ルト頭部は落下せず、落下により締結された装置の運転
上の支障を生ずるおそれがない。また、破断したボルト
頭部はかしめ金具によって弾性的に座ぐり穴内に保持さ
れるので、運転にともない振動による移動、摩耗、破損
等を起こすことがない。そして、かしめ金具は弾性的に
座ぐり穴に嵌装されているだけであるから、極めて簡単
に脱着でき、ボルトの交換は容易となり所用の時間は大
幅に短縮することができる。According to the present invention, a bolt caulking structure includes a flange portion projecting from a lower portion of a bolt head, a counterbore hole provided at an upper portion of the bolt hole, and in which the bolt head and the flange portion sink. An annular groove provided in the side wall of the counterbore, and a hole at the bottom center, through which the bolt head is inserted, and an annular side wall adjacent to the side wall of the counterbore on the outer periphery of the bottom. The annular side wall portion has an outwardly protruding convex portion, and the bottom portion has a crimping metal fitting having a downwardly convex curved cross section from the hole to the annular side wall portion, and the crimping metal fitting is provided in the bolt hole. Since the inserted and fastened bolt is inserted into the bolt head, the bottom is pressed against the flange, and the projection is fitted into the annular groove. Even if it breaks, For state head was crimped counterbore Ananai by the flange portion in company caulking fitting, the bolt head does not fall, there is no risk of causing operational hindrance of the fastened unit by falling. Further, since the broken bolt head is elastically held in the counterbore by the caulking fitting, there is no occurrence of movement, wear, breakage, or the like due to vibration during operation. And, since the caulking fitting is only elastically fitted into the counterbore, it can be attached and detached extremely easily, the bolt can be easily replaced, and the required time can be greatly reduced.
【図１】本発明の実施の一形態に係るボルトのかしめ構
造の例を示す原子炉内のバッフルフォーマーボルト締結
部の要部断面説明図である。FIG. 1 is an explanatory cross-sectional view of an essential part of a baffle former bolt fastening portion in a nuclear reactor showing an example of a bolt caulking structure according to an embodiment of the present invention.
【図２】本実施の形態に係るかしめ金具の説明図であ
り、（ａ）は図１中Ａ−Ａ矢視による平面図、（ｂ）は
（ａ）中Ｂ−Ｂ矢視による断面図である。2A and 2B are explanatory views of a caulking fitting according to the present embodiment, wherein FIG. 2A is a plan view taken along the line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line BB in FIG. It is.
【図３】従来の原子炉内のバッフルフォーマーボルト締
結部の要部断面説明図である。FIG. 3 is an explanatory sectional view of a main part of a baffle former bolt fastening portion in a conventional nuclear reactor.
１ フォーマー部 ２ バッフル板 ３ バッフルフォーマーボルト ３ａ 首下部 ４ ボルト頭部 ５ 座ぐり穴 ６ 側壁 ６ａ 環状溝 ７ ボルト穴 ８ フランジ部 １０ かしめ金具 １１ 六角穴 １２ 底部 １３ 環状側壁部 １３ａ 凸部 DESCRIPTION OF SYMBOLS 1 Former part 2 Baffle plate 3 Baffle former bolt 3a Neck lower part 4 Bolt head 5 Counterbore hole 6 Side wall 6a Annular groove 7 Bolt hole 8 Flange part 10 Swaging metal fitting 11 Hexagon hole 12 Bottom part 13 Annular side wall part 13a Convex part
Claims (1)
部と、ボルト穴の上部に設けられ前記ボルト頭部とフラ
ンジ部が没する座ぐり穴と、同座ぐり穴の側壁に設けら
れた環状溝とを備えるとともに、前記ボルト頭部を挿通
する穴を底部中央に有し、同底部の外周に前記座ぐり穴
の側壁に近接する環状側壁部を有し、同環状側壁部は外
側に突出する凸部を有し、前記底部は前記穴から環状側
壁部にかけて下向きに凸の湾曲断面をなすかしめ金具を
備え、同かしめ金具を前記ボルト穴に挿入され締結され
たボルトの前記ボルト頭部に挿通させ、前記底部を前記
フランジ部に圧接させて前記凸部を前記環状溝に嵌入さ
せてなることを特徴とするボルトのかしめ構造。1. A flange portion projecting from a lower portion of a bolt head, a counterbore provided at an upper portion of the bolt hole, wherein the bolt head and the flange are recessed, and an annular shape provided on a side wall of the counterbore. And a hole at the bottom center for inserting the bolt head, and an annular side wall portion adjacent to the side wall of the counterbore hole on the outer periphery of the bottom portion, the annular side wall portion protruding outward. The bottom portion has a caulking metal having a curved cross section that is downwardly convex from the hole to the annular side wall, and the caulking metal is inserted into the bolt hole and fastened to the bolt head of the bolt. A bolt caulking structure, wherein the bolt is inserted, the bottom is pressed against the flange, and the projection is fitted into the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000089276A JP2001280332A (en) | 2000-03-28 | 2000-03-28 | Caulking structure for bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000089276A JP2001280332A (en) | 2000-03-28 | 2000-03-28 | Caulking structure for bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001280332A true JP2001280332A (en) | 2001-10-10 |
Family
ID=18605052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000089276A Withdrawn JP2001280332A (en) | 2000-03-28 | 2000-03-28 | Caulking structure for bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001280332A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005308153A (en) * | 2004-04-23 | 2005-11-04 | Keihin Corp | Screw drop preventive device |
| JP2010205061A (en) * | 2009-03-04 | 2010-09-16 | Panasonic Corp | Electronic equipment |
| JP2014213652A (en) * | 2013-04-23 | 2014-11-17 | 株式会社東海理化電機製作所 | Vehicle mirror device |
| JP2021085447A (en) * | 2019-11-27 | 2021-06-03 | ポップリベット・ファスナー株式会社 | Bolt for frame structure |
-
2000
- 2000-03-28 JP JP2000089276A patent/JP2001280332A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005308153A (en) * | 2004-04-23 | 2005-11-04 | Keihin Corp | Screw drop preventive device |
| JP4546137B2 (en) * | 2004-04-23 | 2010-09-15 | 株式会社ケーヒン | Screw fall prevention device |
| JP2010205061A (en) * | 2009-03-04 | 2010-09-16 | Panasonic Corp | Electronic equipment |
| JP2014213652A (en) * | 2013-04-23 | 2014-11-17 | 株式会社東海理化電機製作所 | Vehicle mirror device |
| JP2021085447A (en) * | 2019-11-27 | 2021-06-03 | ポップリベット・ファスナー株式会社 | Bolt for frame structure |
| JP7329424B2 (en) | 2019-11-27 | 2023-08-18 | ポップリベット・ファスナー株式会社 | Bolts and fastening structures for frame structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20070605 |