JPH0830488B2 - Fastener and manufacturing method thereof - Google Patents
Fastener and manufacturing method thereofInfo
- Publication number
- JPH0830488B2 JPH0830488B2 JP62021829A JP2182987A JPH0830488B2 JP H0830488 B2 JPH0830488 B2 JP H0830488B2 JP 62021829 A JP62021829 A JP 62021829A JP 2182987 A JP2182987 A JP 2182987A JP H0830488 B2 JPH0830488 B2 JP H0830488B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter shaft
- rolling
- shaft portion
- die
- small
- 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.)
- Expired - Lifetime
Links
Landscapes
- Forging (AREA)
- Bolts, Nuts, And Washers (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、例えば自動車等で外装用として用いる樹脂
製のバンパー、ウインドモール、フェンダーカバー、ラ
ジエターグリル等の部品を車体等の本体に取り付ける締
結具とその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a fastening method for mounting parts such as a resin bumper, a wind molding, a fender cover, and a radiator grill, which are used as an exterior for automobiles and the like, to a body such as a vehicle body. The present invention relates to an ingredient and a manufacturing method thereof.
（従来の技術） この種の締結構造は第10図で示すように、外装用の部
品101と一体成形された取付板102に設けられた一方が開
口する横長の嵌合溝103内に締結具104のクリップ部を圧
入状態で嵌め込み、該締結具のねじ軸部111にはゴム製
でリング状のシール材105を乾燥させて仮組みしたユニ
ットを用意し、これを本体106の取付孔に嵌挿させたの
ちに、ナット107を螺合させて締結を行うものである。(Prior Art) As shown in FIG. 10, this type of fastening structure includes a fastener in a horizontally long fitting groove 103 provided in a mounting plate 102 integrally formed with an exterior part 101 and having one opening. A clip unit 104 is fitted in a press-fit state, a rubber ring-shaped sealing material 105 is dried and temporarily assembled to the screw shaft portion 111 of the fastener, and a unit is prepared and fitted into a mounting hole of the main body 106. After being inserted, the nut 107 is screwed and fastened.
そして、前記の締結構造で使用される従来の締結具10
4としては、例えば第11図および第12図で示すものがあ
る。この締結具104は、回り止めさせるように方形にし
た頭部108と、該頭部108から所定間隔をおいて設けられ
た座金部109と、これら頭部108と座金部109間に設けら
れ前記嵌合溝103内に圧入される小径軸部110とでクリッ
プ部が構成され、該クリップ部に基部側が埋設されたね
じ軸部111の先端側は座金部109から突設されている。前
記構成による締結具104は、クリップ部が樹脂材で射出
成形されるが、その際に金属材で予め製作された前記ね
じ軸部111は基部側がクリップ部内に鋳込まれて一体化
される。And, the conventional fastener 10 used in the above-mentioned fastening structure.
Examples of 4 include those shown in FIGS. 11 and 12. The fastener 104 includes a rectangular head portion 108 for preventing rotation, a washer portion 109 provided at a predetermined distance from the head portion 108, and a portion between the head portion 108 and the washer portion 109. A clip portion is configured with the small-diameter shaft portion 110 press-fitted into the fitting groove 103, and the tip end side of the screw shaft portion 111 whose base side is embedded in the clip portion projects from the washer portion 109. In the fastener 104 having the above-described structure, the clip portion is injection-molded with a resin material. At this time, the screw shaft portion 111, which is manufactured in advance with a metal material, is cast into the clip portion at the base side to be integrated.
（発明が解決しようとする問題点） しかしながら、前記した従来形の締結具では次のよう
な問題点があった。(Problems to be Solved by the Invention) However, the above-described conventional fastener has the following problems.
射出成形機の金型が複雑化し、設計および金型製作の
コストが高いので、製品単価も高くなる。Since the mold of the injection molding machine is complicated and the cost of designing and manufacturing the mold is high, the unit price of the product is also high.
成形中にねじ軸部の先端側へ樹脂材が流出してねじ山
を潰したり、保持部分の中心からねじ軸部がずれたりし
て安定した品質のものが得にくいことや、多数個取りが
困難である等の品質や生産性に難点がある。During molding, the resin material flows out to the tip side of the screw shaft to crush the screw threads, or the screw shaft part shifts from the center of the holding part, making it difficult to obtain stable quality. Difficulty in quality and productivity such as difficulty.
締結個所によって、部品と本体間の長さやねじ軸部の
長さが異なる各種の締結具が要求されるので、これに対
応するためには金型を共用化することができず、生産性
の低下やコスト高を招き、あえて共用化すると長さ調整
用のスペーサを介在させる等の余分な部品と工数の増加
となる。Depending on the fastening point, various fasteners with different lengths between the parts and the main body and the length of the screw shaft are required, so it is not possible to share molds to meet these requirements, and productivity is improved. This leads to a reduction in cost and an increase in cost, and if they are commonly used, extra parts such as interposing a spacer for adjusting the length and the number of steps are increased.
ねじを製造する業者から樹脂加工する業者を経て組立
てする業者へと異なった業種間を経由する間の管理およ
び輸送費が増大する。Management and transportation costs increase during the transit between different industries, from screw manufacturers to resin processors to assembling companies.
尚、本発明のようにねじ部品に座金を連結させるため
の関連技術としては、例えば特開昭48−102756号公報に
開示されたものなどがある。Incidentally, as a related technique for connecting the washer to the screw part as in the present invention, there is, for example, the one disclosed in JP-A-48-102756.
しかし、同公報に開示されたワッシャー付きボルト
は、頭部とねじ軸部との間の軸部外周に環状突起を設
け、この環状突起がワッシャーを頭部の首下に係止させ
る抜け止め防止として機能するようにしたものであり、
頭部の座面から一定間隔を置いた位置で当該座面と平行
状に配設される態様で座金部を軸に固着させ、この座金
部が前記頭部および小径軸部と協働してクリップ部を形
成する前記小径軸部の先端側から半径方向へ突設され、
前記頭部および小径軸部と協働してクリップ部を形成す
るようにした本発明が対象とする締結具とは、その目的
並びに構成が著しく相違するものである。However, in the bolt with washer disclosed in the publication, an annular protrusion is provided on the outer circumference of the shaft portion between the head and the screw shaft portion, and the annular protrusion prevents the washer from locking under the neck of the head. Is designed to function as
The washer portion is fixed to the shaft in a state in which the washer portion is arranged in parallel with the seat surface at a position spaced apart from the seat surface of the head portion, and the washer portion cooperates with the head portion and the small diameter shaft portion. The small-diameter shaft portion forming the clip portion is provided so as to project from the tip end side in the radial direction,
The fastener and the fastener targeted by the present invention, which cooperates with the head portion and the small-diameter shaft portion to form the clip portion, are significantly different in purpose and configuration.
また、その製造方法では、ねじ山の始端部に環状溝を
造成しながら母材肉を盛り上がらせて環状突起を造るた
めの平板をダイスの上面に設けている。Further, in the manufacturing method, a flat plate is formed on the upper surface of the die for forming an annular projection by forming the annular groove at the starting end portion of the screw thread to raise the base metal meat.
しかし、このような平板による環状突起の造成の場合
には、被転造軸に対して平板が常に一定の高さ位置のと
ころを圧接することになるので、塑性変形された母材が
上方にのみ移動するだけでなく下方にも移動してねじ山
の造成を損なう恐れがあると共に、平板による押圧力も
終始一定であるために、塑性変形がスムーズに行われな
かったり、所望に整形された環状突起が得られにくい。However, in the case of forming an annular projection with such a flat plate, the flat plate always comes into pressure contact with the rolled shaft at a certain height position, so that the plastically deformed base material moves upward. Not only it moves, but also it may move downward and damage the formation of the screw thread, and because the pressing force by the flat plate is constant from beginning to end, plastic deformation is not performed smoothly or it is shaped as desired. It is difficult to obtain an annular protrusion.
（問題点を解決するための手段） 本発明による締結具は、頭部と、該頭部から一体に連
設された小径軸部と、該小径軸部から一体に連設されて
基端側に当該小径軸部より小径な非ねじ部を備えたねじ
軸部と、前記頭部の座面から一定間隔を置いた位置で当
該座面と平行状に前記小径軸部の先端側から半径方向へ
突設され、前記頭部および小径軸部と協働してクリップ
部を形成する座金部とを備え、前記座金部は前記非ねじ
部に嵌挿させて前記ねじ軸部のねじ山を転造する際に当
該非ねじ部を塑性変形させたカシメ部によって、前記小
径軸部と一体に固着されている。(Means for Solving Problems) A fastener according to the present invention includes a head portion, a small diameter shaft portion integrally connected to the head portion, and a base end side integrally connected to the small diameter shaft portion. A screw shaft portion having a non-threaded portion having a diameter smaller than that of the small diameter shaft portion, and a radial direction from the tip side of the small diameter shaft portion parallel to the seat surface at a position spaced from the seat surface of the head by a certain distance. And a washer portion that cooperates with the head portion and the small-diameter shaft portion to form a clip portion, and the washer portion is inserted into the non-threaded portion to roll the screw thread of the screw shaft portion. The non-threaded portion is fixed integrally with the small-diameter shaft portion by a caulking portion obtained by plastically deforming the non-threaded portion during manufacturing.
本発明による締結具の製造方法では、頭部と、該頭部
から一体に連設された小径軸部とをヘッダーで被転造軸
に圧造加工する工程と、前記頭部および小径軸部と協働
してクリップ部を形成する座金部を前記小径軸部と隣接
する被転造軸に嵌挿させ、上端側の一部に塑性変形用の
チップを装着させた転造用ダイスを用いて、前記被転造
軸の先端側にねじ山を転造してねじ軸部を造成すると同
時に、基端側の非ねじ部を塑性変形させて前記座金部を
前記小径軸部に固着させるカシメ部を造成させる工程を
備え、前記塑性変形用のチップには、前記ダイスの上面
から垂直方向に対する厚みを次第に増加させて終端側で
はダイスの上面より僅かに突出する態様でテーパ面を形
成すると共に、転造面から水平方向に対する幅を次第に
増加させて終端側ではダイスの転造面より僅かに突出す
る態様でテーパ面を形成する転造初期部と、この転造初
期部の終端側に連続してダイスの上面および転造面より
僅かに突出する一定の厚みと幅で、当該ダイスと平行面
を形成する転造終端部を設けた。In the method for manufacturing a fastener according to the present invention, a step of forging a head portion and a small diameter shaft portion integrally provided from the head portion to a rolled shaft with a header, and the head portion and the small diameter shaft portion. Using a rolling die in which a washer portion that cooperates to form a clip portion is fitted and inserted into a rolling shaft adjacent to the small diameter shaft portion, and a tip for plastic deformation is attached to a part of the upper end side. , A caulking portion for forming a screw shaft portion by rolling a thread on the tip end side of the rolled shaft and at the same time plastically deforming the non-threaded portion on the base end side to fix the washer portion to the small diameter shaft portion A step of forming, the tip for plastic deformation, while gradually increasing the thickness in the vertical direction from the upper surface of the die to form a taper surface in a manner to slightly project from the upper surface of the die on the terminal side, On the end side, gradually increase the width in the horizontal direction from the rolling surface. A rolling initial portion that forms a tapered surface in a manner to slightly project from the rolling surface of the die, and a constant thickness that continuously protrudes slightly from the upper surface and rolling surface of the die on the terminal side of the rolling initial portion. And a width, a rolling end portion that forms a plane parallel to the die was provided.
（実施例） 以下に本発明の一実施例を図面に基づいて説明する。
締結具１は第１図および第２図で示すように、頭部２と
小径軸部３および座金部４からなるクリップ部と、ねじ
軸部５とで構成され、各部はいずれも金属材で形成され
ている。頭部２は、締結具１が前記外装用の部品101と
一体成形された取付板102に嵌着された際に、当該取付
板102の内面側にあって回り止め機能を有するように例
えば平行な両側面を備えた長円形状をしている。この頭
部２からは、前記嵌合溝103内に圧入される円柱状の小
径軸部３が一体に連設されている。また小径軸部３の一
方端部には、締結具１が取付板102に嵌着された際に当
該取付板102の外面側にあって、前記頭部２と協働して
取付板102を挾持すると共に、車体等の本体106の締付け
座面となる円板状の座金部４が固着されている。更にね
じ軸部５の先端には、前記本体106の取付孔に挿入し易
いよう小径の突入部６が形成されている。(Example) Below, one Example of this invention is described based on drawing.
As shown in FIGS. 1 and 2, the fastener 1 is composed of a head portion 2, a clip portion including a small diameter shaft portion 3 and a washer portion 4, and a screw shaft portion 5, and each portion is made of a metal material. Has been formed. The head portion 2 is, for example, parallel so as to have a rotation preventing function on the inner surface side of the mounting plate 102 when the fastener 1 is fitted to the mounting plate 102 integrally formed with the exterior component 101. It has an oval shape with both sides. A cylindrical small-diameter shaft portion 3 that is press-fitted into the fitting groove 103 is integrally connected to the head portion 2. In addition, the one end of the small diameter shaft portion 3 is on the outer surface side of the mounting plate 102 when the fastener 1 is fitted to the mounting plate 102, and cooperates with the head 2 to mount the mounting plate 102. The disk-shaped washer portion 4 serving as a tightening seat surface of the main body 106 such as the vehicle body is fixed while being held. Further, a small diameter protrusion 6 is formed at the tip of the screw shaft portion 5 so as to be easily inserted into the mounting hole of the main body 106.
上記の締結具１の製造に際しては、まず第３図で示す
ように被転造軸７の一方端側に突入部６を、他方端側に
頭部２および小径軸部３を各々ヘッダー加工で圧造す
る。この圧造品の被転造軸７には、座金部４を嵌挿して
小径軸部３に隣接配備させ、被転造軸７の基部を第５図
で示すように転造用ダイスで塑性変形させたカシメ部８
によって小径軸部３の端部に固着させると共に、被転造
軸７にねじ山を設けてねじ軸部５を成形させる。In manufacturing the above-described fastener 1, first, as shown in FIG. 3, the protruding portion 6 is formed on one end side of the rolled shaft 7 and the head portion 2 and the small diameter shaft portion 3 are formed on the other end side by header processing. Forge. The washer portion 4 is fitted on the rolled shaft 7 of this forging product so as to be disposed adjacent to the small diameter shaft portion 3, and the base portion of the rolled shaft 7 is plastically deformed by a rolling die as shown in FIG. The crimped part 8
The threaded shaft 7 is fixed to the end of the small-diameter shaft portion 3, and the thread to be rolled 7 is provided to form the screw shaft portion 5.
転造用ダイスは第６図で示すように、通常のこの種ダ
イスと同様にねじ軸部５の転造溝が刻設された転造面９
を有する移動ダイス10と、同じく転造溝（図示せず）を
刻設した固定ダイス11とを備えており、両ダイス10,11
の上面12,13側にはカシメ部８を造成させるためのチッ
プ14,15が挿着されている。チップ12は第７図乃至第９
図で示すように、移動ダイス10の上面12および転造面９
と平行状に僅かに突出する態様で一定の厚みt2と巾d2を
有する転造終端部14bと、移動ダイス10の上面12および
転造面９と一致する厚みt1と巾d1から次第に厚みおよび
巾を増加して転造終端部14bの厚みt2と巾d2に一致する
ように所定の傾斜角度θ1,θ２を有する転造初期部14a
とで構成されている。尚、固定ダイス11に装着されるチ
ップ15は上記のチップ14と同様の構成である。As shown in FIG. 6, the rolling die has a rolling surface 9 on which the rolling groove of the screw shaft portion 5 is engraved, as in the case of an ordinary die of this type.
And a fixed die 11 having a rolling groove (not shown) formed therein.
Chips 14 and 15 for forming the caulking portion 8 are inserted and attached to the upper surfaces 12 and 13 of the. Chip 12 is shown in FIGS.
As shown in the figure, the upper surface 12 of the moving die 10 and the rolling surface 9
From the rolling end portion 14b having a constant thickness t 2 and a constant width d 2 in a state of slightly protruding in parallel with the thickness t 1 and width d 1 which match the upper surface 12 of the moving die 10 and the rolling surface 9. Rolling initial portion 14a having predetermined inclination angles θ1 and θ2 so that the thickness and width gradually increase to match the thickness t 2 and width d 2 of rolling end portion 14b.
It consists of and. The chip 15 mounted on the fixed die 11 has the same structure as the chip 14.
従って、ダイス10,11を用いて前記した第４図の状態
のねじ部品を転造加工すると、チップ14,15で被転造軸
７は第５図で示すように塑性変形され、カシメ部８によ
って座金部４が小径軸部３の隣接端部に固着されると共
に、同時に転造面９等によってねじ軸部５が刻設され、
第１図で示す一体の締結具１が製造される。Therefore, when the threaded component in the state shown in FIG. 4 is rolled using the dies 10 and 11, the rolled shaft 7 is plastically deformed by the chips 14 and 15 as shown in FIG. The washer portion 4 is fixed to the adjacent end portion of the small-diameter shaft portion 3 by means of, and at the same time, the screw shaft portion 5 is engraved by the rolling surface 9 or the like.
The integral fastener 1 shown in FIG. 1 is manufactured.
（発明の効果） 本発明によると、圧造と簡単な転造用ダイスとによっ
てクリップ部とねじ山の加工を同時に通常のねじ部品と
同様に行うことができると共に、これらは同一の製造業
者によって製造された組立業者に納入することができる
ので、製作および管理コストを低減して安価に提供する
ことが可能となる。また、部品と本体間やねじ軸部の長
さが異なる各種の締結個所に対応する長さのものを安価
且つ容易に提供することが可能である。(Effect of the Invention) According to the present invention, the clip portion and the thread can be simultaneously processed by the forging and the simple rolling die in the same manner as a normal screw part, and these are manufactured by the same manufacturer. Since it can be delivered to the assembled assembler, it is possible to reduce the manufacturing and management costs and to provide it at a low cost. Further, it is possible to inexpensively and easily provide the one having a length corresponding to various fastening points having different lengths between the component and the main body and the screw shaft portion.
さらに、転造ダイスに装着された塑性変形用チップ特
にテーパ面による転造初期部の形状によって、被転造軸
に対する押圧位置が順次上方へ移動されるので、塑性変
形された母材を下方から上方へ押し出すように作用する
と共に、その押圧力も順次増大されるように印可される
ので、無理なくスムーズに塑性変形が行われてカシメ部
の整形状態も安定し、強固なカシメ強度が期待できる。Further, the pressing position for the rolling axis is sequentially moved upward by the plastic deformation tip mounted on the rolling die, especially the shape of the rolling initial portion by the tapered surface, so that the plastically deformed base material is moved from below. It acts so as to push it upwards, and because the pressing force is applied so that it gradually increases, it is possible to smoothly plastically deform and stabilize the crimped part's shaping state, and strong caulking strength can be expected. .
第１図は本発明の実施例による締結具の正面図、第２図
は同側面図、第３図および第４図は同締結具の加工工程
における正面図、第５図は同締結具の要部拡大正面図、
第６図は同締結具の転造用ダイスの斜視図、第７図は同
ダイスに装着されるチップの平面図、第８図は同正面
図、第９図は同側面図、第10図は従来の締結具を用いた
締結構造の縦断面図、第11図は同締結具の一部を破断し
て示す正面図、第12図は同締結具の側面図である。 ［符号の説明］ １……締結具、２……頭部 ３……小径軸部、４……座金部 ５……ねじ軸部、６……突入部 ７……被転造軸、８……カシメ部 ９……転造面、10……移動ダイス 11……固定ダイス 12,13……（ダイスの）上面 14,15……チップFIG. 1 is a front view of a fastener according to an embodiment of the present invention, FIG. 2 is a side view of the same, FIGS. 3 and 4 are front views of a fastener in a processing step, and FIG. Main part enlarged front view,
FIG. 6 is a perspective view of a rolling die of the fastener, FIG. 7 is a plan view of a chip mounted on the die, FIG. 8 is a front view of the same, FIG. 9 is a side view of the same, and FIG. FIG. 11 is a longitudinal sectional view of a fastening structure using a conventional fastener, FIG. 11 is a front view showing a part of the fastener in a cutaway view, and FIG. 12 is a side view of the fastener. [Explanation of Codes] 1 ... Fastener, 2 ... Head part 3 ... Small diameter shaft part, 4 ... Washer part 5 ... Screw shaft part, 6 ... Inrush part 7 ... Rolled shaft, 8 ... … Crimping part 9 …… Rolled surface, 10 …… Moving die 11 …… Fixed die 12,13 …… (Die) upper surface 14,15 …… Chip
Claims (2)
軸部と、該小径軸部から一体に連設されて基端側に当該
小径軸部より小径な非ねじ部を備えたねじ軸部と、前記
頭部の座面から一定間隔を置いた位置で当該座面と平行
状に前記小径軸部の先端側から半径方向へ突設され、前
記頭部および小径軸部と協働してクリップ部を形成する
座金部とを備え、前記座金部は前記非ねじ部に嵌挿させ
て前記ねじ軸の部ねじ山を転造する際に当該非ねじ部を
塑性変形させたカシメ部によって、前記小径軸部と一体
に固着されていることを特徴とする締結具。1. A head portion, a small-diameter shaft portion that is integrally connected from the head portion, and a non-threaded portion that is continuously connected from the small-diameter shaft portion and has a diameter smaller than that of the small-diameter shaft portion on the base end side. The screw shaft portion and the head portion and the small diameter shaft portion, which are provided in a position spaced apart from the seat surface of the head portion in a radial direction from the tip end side of the small diameter shaft portion in parallel with the seat surface. And a washer part that forms a clip part in cooperation with the washer part, and the washer part is inserted into the non-threaded part to plastically deform the non-threaded part when the thread part of the screw shaft is rolled. A fastener which is integrally fixed to the small diameter shaft portion by a caulking portion.
軸部とをヘッダーで被転造軸に圧造加工する工程と、前
記頭部および小径軸部と協働してクリップ部を形成する
座金部を前記小径軸部と隣接する被転造軸に嵌挿させ、
上端側の一部に塑性変形用のチップを装着させた転造用
ダイスを用いて、前記被転造軸の先端側にねじ山を転造
してねじ軸部を造成すると同時に、基端側の非ねじ部を
塑性変形させて前記座金部を前記小径軸部に固着させる
カシメ部を造成させる工程を備え、前記塑性変形用のチ
ップには、前記ダイスの上面から垂直方向に対する厚み
を次第に増加させて終端側ではダイスの上面より僅かに
突出する態様でテーパ面を形成すると共に、転造面から
水平方向に対する幅を次第に増加させて終端側ではダイ
スの転造面より僅かに突出する態様でテーパ面を形成す
る転造初期部と、この転造初期部の終端側に連続してダ
イスの上面および転造面より僅かに突出する一定の厚み
と幅で、当該ダイスと平行面を形成する転造終端部を設
けたことを特徴とする締結具の製造方法。2. A step of forging a head part and a small diameter shaft part integrally connected to the head part to a rolled shaft by a header, and a clip in cooperation with the head part and the small diameter shaft part. A washer portion forming a portion is fitted and inserted into the rolled shaft adjacent to the small diameter shaft portion,
Using a rolling die in which a tip for plastic deformation is attached to a part of the upper end side, a thread is formed on the tip side of the shaft to be rolled to form a screw shaft portion, and at the same time, a base end side. The step of plastically deforming the non-screw part to form the caulking part for fixing the washer part to the small-diameter shaft part, and the plastic deformation tip is gradually increased in thickness in the vertical direction from the upper surface of the die. On the terminal side, the tapered surface is formed so as to slightly project from the upper surface of the die, and the width in the horizontal direction from the rolling surface is gradually increased so that the terminal surface slightly projects from the rolling surface of the die. A rolling initial portion that forms a tapered surface and a surface that is parallel to the die with a constant thickness and width that continuously protrudes from the upper end of the rolling initial portion and the end surface of the rolling initial portion Characterized by the provision of a rolling end Method of manufacturing that the fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62021829A JPH0830488B2 (en) | 1987-02-03 | 1987-02-03 | Fastener and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62021829A JPH0830488B2 (en) | 1987-02-03 | 1987-02-03 | Fastener and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63190921A JPS63190921A (en) | 1988-08-08 |
| JPH0830488B2 true JPH0830488B2 (en) | 1996-03-27 |
Family
ID=12065957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62021829A Expired - Lifetime JPH0830488B2 (en) | 1987-02-03 | 1987-02-03 | Fastener and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0830488B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176646A (en) * | 1991-02-19 | 1993-01-05 | Takayuki Kuroda | Motorized syringe pump |
| JP4579943B2 (en) * | 2007-05-23 | 2010-11-10 | 株式会社トープラ | Flat washer crimp bolt and its manufacturing method |
| JP6435117B2 (en) * | 2013-05-28 | 2018-12-05 | 寺尾機械株式会社 | Manufacturing method of connecting member |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48102756A (en) * | 1972-04-10 | 1973-12-24 |
-
1987
- 1987-02-03 JP JP62021829A patent/JPH0830488B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63190921A (en) | 1988-08-08 |
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