JP3634210B2 - connector - Google Patents

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Publication number
JP3634210B2
JP3634210B2 JP29081399A JP29081399A JP3634210B2 JP 3634210 B2 JP3634210 B2 JP 3634210B2 JP 29081399 A JP29081399 A JP 29081399A JP 29081399 A JP29081399 A JP 29081399A JP 3634210 B2 JP3634210 B2 JP 3634210B2
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JP
Japan
Prior art keywords
insert
terminal fitting
along
connector
bent
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 - Fee Related
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JP29081399A
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Japanese (ja)
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JP2001110499A (en
Inventor
和裕 麻生
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
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Priority to JP29081399A priority Critical patent/JP3634210B2/en
Publication of JP2001110499A publication Critical patent/JP2001110499A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、インサート樹脂成形品の端子金具に関する。
【0002】
【従来の技術】
一般に、コネクタをインサート成形する場合には、成形金型の成形用空間内に端子金具を保持させた状態でその中に合成樹脂材を射出充填することでハウジングを成形する。このとき、端子金具が強い樹脂圧によって変形したり、極端な場合はハウジングの内部で端子金具同士が接触したりする虞があった。
【0003】
そこで、上記の問題の解消を図ったものとして、特開平11−185855号公報に開示されたものがある。図7に示すように、このコネクタ1では、ハウジング2に略L字形の2本の端子金具3,4がインサート成形されている。端子金具3(4もほぼ同様の構成であるので以下省略する)には、ハウジング2に埋め込まれた部分の一部に、図8に示すように幅方向両端縁を折り立てることにより一対のリブ6が形成されている。端子金具3はこれらのリブ6を備えることによって厚さ方向に補強され、従ってインサート成形時の樹脂圧による変形が防止される。
【0004】
【発明が解決しようとする課題】
ところで、上記の端子金具3を製造する場合には、例えば次のような手順が考えられる。まず、金属板材をプレスによって図9に示すような形状に打ち抜く。これは、細長い板片7を長尺のキャリア8を介して幅方向に多数連ねたものであり、各板片7は端子金具3の展開形状となっている。次に、各板片7を折り曲げ加工した後、キャリア8から切断することで完成した端子金具3を得る。
しかし、上記のものでは、各板片7の幅寸法Aが端子金具3の幅寸法Bに対して一対のリブ6の寸法分大きくなっており、従って各板片7の配列ピッチCが大きくなって歩留まりが悪いという問題があった。
【0005】
本発明は、上記事情に鑑みてなされたもので、その目的は、インサート成形時の樹脂圧による端子金具の変形を防止するとともに、歩留まりを向上させることの可能なインサート樹脂成形品の端子金具を提供するところにある。
【0006】
【課題を解決するための手段】
上記の課題を解決するための請求項1の発明に係るコネクタは、合成樹脂材からなるハウジングと、細長形状の導電性板材から形成されるとともに、インサート成形によって前記ハウジングの内部に埋設されるインサート部を有する端子金具と、を備えたコネクタであって、前記インサート部には、幅方向の両端縁よりも内側の部分を厚さ方向に突出させた突出部がこのインサート部の長さ方向に沿って一体に形成されており、前記突出部は、前記インサート部の内側に長さ方向に沿った切り込みを入れこの切り込みに沿って折り立てることにより形成されるとともに、前記インサート部にはこの折り立て操作に伴って前記突出部に沿った開口が設けられるところに特徴を有する。
【0008】
請求項の発明は、請求項に記載のものにおいて、前記インサート部は、全体が屈曲部を介して折り曲げられており、この屈曲部の一部には叩き出しによって形成した補強部が設けられているところに特徴を有する。
【0009】
【発明の作用および効果】
請求項1の発明によれば、突出部によってインサート部が厚さ方向に補強され、インサート成形時の樹脂圧による端子金具の変形を防止できる。また、この突出部は、端子金具の幅寸法の範囲内で形成されているため、金属板材から端子金具を形成する板片を複数切り取るときに、各板片間の幅を詰めることができ、歩留まりが向上する。
【0010】
また、インサート部の内側には、突出部に沿った開口が設けられているため、端子金具をインサート成形するときに、この開口内を樹脂が流れるため、樹脂の流動性が向上する。
【0011】
請求項の発明によれば、補強部が設けられることによって、インサート成形時の樹脂圧による屈曲部の変形が防止される。
【0012】
【発明の実施の形態】
以下、本発明の一実施形態について図1から図4を参照しつつ説明する。
本実施形態では、本発明を図1に示す中継コネクタ10(本発明の「インサート樹脂成形品」に相当)に備えられる一対の端子金具20,21に適用した例を示す。
【0013】
中継コネクタ10は、合成樹脂材により略L字形に形成されるハウジング11と、このハウジング11にインサート成形される一対の端子金具20,21とを備えている。ハウジング11の一対の端部にはそれぞれ図示しない相手側コネクタを嵌合可能なフード部12A,12Bが形成されている。
【0014】
一方、端子金具20,21は、導電性の金属板材からプレスにより所定形状に打ち抜かれた後に曲げ加工を施すことによって製造されている(後に詳述する)。(なお、以下の説明において、端子金具21については、端子金具20と一部の寸法のみが異なり他はほぼ同様の構成であるため、端子金具20と同一の構成には同一の符号を付して説明を省略する。)端子金具20は、図2に示すように、全体が屈曲部22を介してL字形に折り曲げられており、全体として等幅に形成されている。この端子金具20は、ハウジング11のL字形状に沿ってハウジング11内に埋設されており、その埋設される部分はインサート部24とされている。また、端子金具20の2つの端部はそれぞれフード部12A,12B内に突出してタブ部25A,25Bを形成しており、フード部12A,12Bに相手側コネクタを嵌合したときにそれぞれ相手側の端子金具(図示しない)と接続可能とされている。
【0015】
インサート部24は、前述の屈曲部22と、この屈曲部22から延びる長辺26Aと短辺26Bとから構成される(なお、以下の記述において、長辺側と短辺側とで同様の作用を奏する構成については、符号番号を同一として、A(長辺側)またはB(短辺側)のアルファベットを添付することにより、重複した説明を省くこととする。)長辺26A及び短辺26Bには、それぞれ幅方向の中央に長さ方向に沿って開口27A,27Bが設けられている。各開口27A,27Bの幅方向の両孔縁からは開口27A,27Bの内部をそれぞれ外面側(屈曲部22の曲げ方向と逆側の面)へほぼ直角に折り立てることによってそれぞれ一対のリブ29A,29B(本発明の「突出部」に相当)が形成されている(図3もあわせて参照)。また、屈曲部22には、幅方向の中央部分を外面側から内面側へ叩き出すことによって、屈曲部22の曲げ方向とは逆の方向(内面側)に屈曲される補強部31が形成されている。
【0016】
次に端子金具20及び中継コネクタ10の製造工程とその作用を説明する。
製造工程では、まず金属板材をプレスにより図4に示すような形状に打ち抜く。これは、細長い板片41(本発明の「導電性板材」に相当)の一端を小片状の連結部42を介して長尺のキャリア40に連結したもので、板片41は幅方向に一定ピッチYで多数連なっている。各板片41は、端子金具20の展開状態となっており、その幅寸法Xは全体として一定であり、端子金具20の幅寸法と等しくなっている。
【0017】
なお、このとき上記の各板片41に対して、端子金具20の長辺26A及び短辺26Bに相当する箇所にそれぞれ長さ方向に沿って切り込み43A,43Bを入れておく。そして、その切り込み43A,43Bの幅方向の両側部分をほぼ直角に折り曲げる(このときの折り線を図4において44A,44Bで示す)。これによって、切り込んだ部位に長さ方向に沿って開口27A,27Bが形成されるとともに、折り立てた部分はそれぞれリブ29A,29Bとなる。その後、板片41を各リブ29A,29Bが外面側になるようにL字状に屈曲して屈曲部22を形成するとともに、屈曲部22の幅方向中央を外面側から内面側へ叩き出すことで補強部31を形成する。そして、最後に連結部42を切断して各板片41をキャリア40から切り離せば、本実施形態の端子金具20の製造が完了する。
【0018】
次に、完成した端子金具20を図示しない成形金型の成形空間内に保持させ、内部に合成樹脂材を射出充填する。このとき、端子金具20には強い樹脂圧が掛かるが、図4等に示すように、端子金具20にはリブ29A,29Bが設けられることで厚さ方向に補強されているため、樹脂圧による変形が防止される。さらに、開口27A,27Bが設けられることで、厚さ方向に掛かる樹脂圧が軽減される。また、溶融樹脂が、開口27A,27Bを通して端子金具20の表裏に通過できるので、樹脂の流動性も向上する。
また、端子金具20の屈曲部22には、補強部31が設けられているため、樹脂圧による屈曲部22の変形も防止される。
【0019】
以上のように、本実施形態によれば、端子金具20にリブ29A,29B及び補強部31が設けられることで、インサート成形時の樹脂圧による端子金具20の変形を防止できる。このとき、リブ29A,29B及び補強部31は、端子金具20の幅寸法Xの範囲内で形成されているため、金属板材から端子金具20を形成する板片41を打ち抜くときに、各板片41の配列ピッチYを詰めることができ、歩留まりが向上する。
【0020】
参考例
上記実施形態では、板片41に切り込み43A,43Bを入れ、その切り込み43A,43Bの幅方向の両側部分を折り曲げることで開口27A,27Bとリブ29A,29Bとを形成したが、本参考例の端子金具50では、図5及び図6に示すように、上記実施形態の長辺26A,短辺26Bに相当する部位のそれぞれ幅方向の両端縁よりも内側部分を叩き出すことでリブ51A,51B(本発明の「突出部」に相当)を設けている。(なお、図5及び図6においては、上記実施形態と同様の構成には同一の符号を付している。)
本発明の技術的範囲は、上記した実施形態によって限定されるものではなく、その他、均等の範囲にまで及ぶものである。
【図面の簡単な説明】
【図1】本実施形態におけるコネクタの断面図
【図2】端子金具の斜視図
【図3】端子金具の断面図
【図4】端子金具の製造途中の状態を示す平面図
【図5】参考例における端子金具の斜視図
【図6】端子金具の断面図
【図7】従来例におけるコネクタの断面図
【図8】従来例における端子金具の断面図
【図9】従来例における端子金具の製造途中の状態を示す平面図
【符号の説明】
10…中継コネクタ(インサート樹脂成形品)
20,21,50…端子金具
22…屈曲部
24…インサート部
27A,27B…開口
29A,29B,51A,51B…リブ(突出部)
31…補強部
41…板片(導電性板材)
43A,43B…切り込み
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal fitting for an insert resin molded product.
[0002]
[Prior art]
Generally, when insert-molding a connector, a housing is formed by injection-filling a synthetic resin material in a state where a terminal fitting is held in a molding space of a molding die. At this time, the terminal fittings may be deformed by a strong resin pressure, or in extreme cases, the terminal fittings may come into contact with each other inside the housing.
[0003]
In order to solve the above problem, there is one disclosed in Japanese Patent Laid-Open No. 11-185855. As shown in FIG. 7, in this connector 1, two substantially L-shaped terminal fittings 3 and 4 are insert-molded in a housing 2. The terminal fitting 3 (4 is substantially the same configuration and will be omitted below), a pair of ribs are formed by folding both end edges in the width direction in a part of the portion embedded in the housing 2 as shown in FIG. 6 is formed. The terminal fitting 3 is reinforced in the thickness direction by providing these ribs 6, and thus deformation due to resin pressure during insert molding is prevented.
[0004]
[Problems to be solved by the invention]
By the way, when manufacturing said terminal metal fitting 3, the following procedures can be considered, for example. First, a metal plate material is punched into a shape as shown in FIG. 9 by pressing. In this configuration, a large number of elongated plate pieces 7 are connected in the width direction via a long carrier 8, and each plate piece 7 has a developed shape of the terminal fitting 3. Next, after bending each plate piece 7, the finished terminal fitting 3 is obtained by cutting from the carrier 8.
However, in the above, the width dimension A of each plate piece 7 is larger than the width dimension B of the terminal fitting 3 by the dimension of the pair of ribs 6, and therefore the arrangement pitch C of each plate piece 7 is increased. There was a problem that the yield was bad.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a terminal fitting for an insert resin molded product capable of preventing the deformation of the terminal fitting due to the resin pressure during insert molding and improving the yield. There is to offer.
[0006]
[Means for Solving the Problems]
A connector according to the invention of claim 1 for solving the above-mentioned problems is formed of a housing made of a synthetic resin material and an elongated conductive plate material, and an insert embedded in the housing by insert molding. A connector having a terminal fitting, wherein the insert portion has a protruding portion in the length direction of the insert portion that protrudes inward in the thickness direction from both end edges in the width direction. The projecting portion is formed by inserting a cut along the length direction inside the insert portion and folding the cut along the cut, and the insert portion is formed with the folded portion. It is characterized in that an opening along the protruding portion is provided along with the standing operation .
[0008]
According to a second aspect of the present invention, in the first aspect of the present invention, the insert portion is entirely bent through a bent portion, and a reinforcing portion formed by knocking is provided in a part of the bent portion. It is characterized by
[0009]
Operation and effect of the invention
According to the invention of claim 1, the insert portion is reinforced in the thickness direction by the protruding portion, and deformation of the terminal fitting due to the resin pressure during the insert molding can be prevented. Moreover, since this protrusion is formed within the range of the width dimension of the terminal fitting, when cutting a plurality of plate pieces forming the terminal fitting from the metal plate material, the width between each piece can be reduced, Yield is improved.
[0010]
Moreover , since the opening along the protrusion part is provided inside the insert part, when the terminal metal fitting is insert-molded, the resin flows in the opening, so that the fluidity of the resin is improved.
[0011]
According to the invention of claim 2 , by providing the reinforcing portion, deformation of the bent portion due to the resin pressure during insert molding is prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
In this embodiment, an example in which the present invention is applied to a pair of terminal fittings 20 and 21 provided in the relay connector 10 (corresponding to the “insert resin molded product” of the present invention) shown in FIG. 1 is shown.
[0013]
The relay connector 10 includes a housing 11 formed in a substantially L shape from a synthetic resin material, and a pair of terminal fittings 20 and 21 that are insert-molded in the housing 11. Hood portions 12A and 12B are formed at a pair of end portions of the housing 11 to which mating connectors (not shown) can be fitted.
[0014]
On the other hand, the terminal metal fittings 20 and 21 are manufactured by punching a conductive metal plate material into a predetermined shape by pressing and then bending (detailed later). (In the following description, the terminal fitting 21 has the same configuration as the terminal fitting 20 because the terminal fitting 21 is substantially the same as the terminal fitting 20 except for some dimensions. As shown in FIG. 2, the terminal fitting 20 is entirely bent into an L shape via a bent portion 22, and is formed with a uniform width as a whole. The terminal fitting 20 is embedded in the housing 11 along the L-shape of the housing 11, and the embedded portion is an insert portion 24. Further, the two end portions of the terminal fitting 20 protrude into the hood portions 12A and 12B to form tab portions 25A and 25B, respectively, and when the mating connector is fitted to the hood portions 12A and 12B, respectively It can be connected to a terminal fitting (not shown).
[0015]
The insert portion 24 includes the above-described bent portion 22 and a long side 26A and a short side 26B extending from the bent portion 22 (in the following description, the same action is performed on the long side and the short side). The same reference numerals are used, and the alphabet of A (long side) or B (short side) is attached to omit the redundant description.) Long side 26A and short side 26B Are respectively provided with openings 27A and 27B in the center in the width direction along the length direction. A pair of ribs 29A is formed by folding the insides of the openings 27A and 27B to the outer surface side (surface opposite to the bending direction of the bent portion 22) from both edge edges in the width direction of the openings 27A and 27B. 29B (corresponding to the “protruding portion” of the present invention) (see also FIG. 3). Further, the bending portion 22 is formed with a reinforcing portion 31 that is bent in the direction opposite to the bending direction of the bending portion 22 (inner surface side) by knocking the central portion in the width direction from the outer surface side to the inner surface side. ing.
[0016]
Next, the manufacturing process and operation of the terminal fitting 20 and the relay connector 10 will be described.
In the manufacturing process, first, a metal plate material is punched into a shape as shown in FIG. This is one in which one end of an elongated plate piece 41 (corresponding to the “conductive plate material” of the present invention) is connected to a long carrier 40 via a small piece-like connecting portion 42, and the plate piece 41 extends in the width direction. Many are connected at a constant pitch Y. Each plate piece 41 is in a developed state of the terminal fitting 20, and its width dimension X is constant as a whole and is equal to the width dimension of the terminal fitting 20.
[0017]
At this time, cuts 43A and 43B are made in the respective plate pieces 41 along the length direction at locations corresponding to the long side 26A and the short side 26B of the terminal fitting 20, respectively. Then, both side portions of the cuts 43A and 43B in the width direction are bent at substantially right angles (fold lines at this time are indicated by 44A and 44B in FIG. 4). As a result, openings 27A and 27B are formed along the length direction in the cut portions, and the folded portions become ribs 29A and 29B, respectively. Thereafter, the plate piece 41 is bent in an L shape so that the ribs 29A and 29B are on the outer surface side to form the bent portion 22, and the center in the width direction of the bent portion 22 is knocked out from the outer surface side to the inner surface side. The reinforcement part 31 is formed by this. And finally, if the connection part 42 is cut | disconnected and each plate piece 41 is cut off from the carrier 40, manufacture of the terminal metal fitting 20 of this embodiment will be completed.
[0018]
Next, the completed terminal fitting 20 is held in a molding space of a molding die (not shown), and a synthetic resin material is injected and filled therein. At this time, a strong resin pressure is applied to the terminal fitting 20, but as shown in FIG. 4 and the like, the terminal fitting 20 is reinforced in the thickness direction by providing ribs 29A and 29B. Deformation is prevented. Furthermore, the resin pressure applied in the thickness direction is reduced by providing the openings 27A and 27B. Further, since the molten resin can pass through the openings 27A and 27B to the front and back of the terminal fitting 20, the resin fluidity is also improved.
Moreover, since the reinforcement part 31 is provided in the bending part 22 of the terminal metal fitting 20, the deformation | transformation of the bending part 22 by the resin pressure is also prevented.
[0019]
As described above, according to the present embodiment, the ribs 29A and 29B and the reinforcing portion 31 are provided on the terminal fitting 20, so that the deformation of the terminal fitting 20 due to the resin pressure during the insert molding can be prevented. At this time, since the ribs 29A and 29B and the reinforcing portion 31 are formed within the range of the width dimension X of the terminal fitting 20, when the plate piece 41 forming the terminal fitting 20 is punched from the metal plate material, The arrangement pitch Y of 41 can be reduced, and the yield is improved.
[0020]
< Reference example >
In the above embodiments, placed 43A cut the plate piece 41, and 43B, the notch 43A, the opening 27A by bending the both side portions in the width direction of 43B, 27B and the ribs 29A, was formed and 29B, the present embodiment In the terminal fitting 50, as shown in FIGS. 5 and 6, ribs 51A and 51B are formed by knocking out the inner portions of the portions corresponding to the long side 26A and the short side 26B of the above-described embodiment from both ends in the width direction. (Corresponding to the “projection” of the present invention). (In FIGS. 5 and 6, the same reference numerals are given to the same components as those in the above embodiment.)
The technical scope of the present invention is not limited to the above-described embodiments, but extends to an equivalent range.
[Brief description of the drawings]
[1] The present embodiment sectional view of the connector according to Embodiment 2 is a perspective view of the terminal fitting 3 is a cross-sectional view of the terminal fitting plan view showing a state of a process of producing a 4 terminal fitting Figure 5 Reference production of the terminal fitting in perspective view FIG. 6 is a cross-sectional view and FIG. 7 of the terminal fitting cross-sectional view of the terminal fitting in the cross section 8 conventional connector in the prior art [9] conventional example of the terminal fitting in the example Plan view showing the state in the middle
10 ... Relay connector (insert resin molded product)
20, 21, 50 ... terminal fitting 22 ... bent portion 24 ... insert portion 27A, 27B ... opening 29A, 29B, 51A, 51B ... rib (protruding portion)
31 ... Reinforcement part 41 ... Plate piece (conductive plate material)
43A, 43B ... notches

Claims (2)

合成樹脂材からなるハウジングと、
細長形状の導電性板材から形成されるとともに、インサート成形によって前記ハウジングの内部に埋設されるインサート部を有する端子金具と、
を備えたコネクタであって、
前記インサート部には、幅方向の両端縁よりも内側の部分を厚さ方向に突出させた突出部がこのインサート部の長さ方向に沿って一体に形成されており、
前記突出部は、前記インサート部の内側に長さ方向に沿った切り込みを入れこの切り込みに沿って折り立てることにより形成されるとともに、前記インサート部にはこの折り立て操作に伴って前記突出部に沿った開口が設けられることを特徴とするコネクタ。
A housing made of synthetic resin,
A terminal fitting formed of an elongated conductive plate and having an insert portion embedded in the housing by insert molding,
A connector with
In the insert part, a protruding part is formed integrally along the length direction of the insert part by protruding a part on the inner side of both end edges in the width direction in the thickness direction ,
The projecting portion is formed by making a cut along the length direction inside the insert portion and folding the projecting portion along the notch, and the insert portion is provided with the projecting portion along with the folding operation. A connector characterized in that an opening is provided along .
前記インサート部は、全体が屈曲部を介して折り曲げられており、この屈曲部の一部には叩き出しによって形成した補強部が設けられていることを特徴とする請求項に記載のコネクタ。2. The connector according to claim 1 , wherein the insert part is entirely bent through a bent part, and a reinforcing part formed by hammering is provided at a part of the bent part.
JP29081399A 1999-10-13 1999-10-13 connector Expired - Fee Related JP3634210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29081399A JP3634210B2 (en) 1999-10-13 1999-10-13 connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29081399A JP3634210B2 (en) 1999-10-13 1999-10-13 connector

Publications (2)

Publication Number Publication Date
JP2001110499A JP2001110499A (en) 2001-04-20
JP3634210B2 true JP3634210B2 (en) 2005-03-30

Family

ID=17760826

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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JP3990187B2 (en) * 2002-05-14 2007-10-10 アルプス電気株式会社 Connector device and EGR sensor equipped with the same
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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