US3757277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: JAPAAN AVIAT ELECTRONICS IND L
•
Filing: 1972-06-14
•
Granted: 1973-09-04
•
Expires: 1992-06-14
Abstract
Abstract An electrical connector comprising electrical contacts and an insulator body for supporting the electrical contacts, a shank of each of electrical contacts which is supported in the supporting portion of the insulator body, comprises a flat plate portion and three wall members standing on and from the flat plate portion, which are inserted into the hole of the supporting member. The three wall members define a box opening at two sides by incorporating with a portion of the flat plate portion, the box portion being interference-fitted into the hole of the supporting portion and the remaining portion of the flat plate portion being loosely accomodated in the hole. Finger tabs are provided at opposite ends of the flat plate portion and is forced towards one another by the internal surface of the hole.
Inventors
- 👤 T Yamanoue
- 👤 Y Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:34
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/28; H01R13/40; H01R13/42; H01R13/428; H01R13/432
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
530 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, and at least one groove formed in an end portion of said projecting portion, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means engaging with said bottom of said first hole portion, a contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, a bent portion at the free end of said contact blade being received in said groove of said projecting portion, a terminal portion integrally extending from said shank in a opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, first and second wall portions extending from side edges of said flat plate portion in a direction perpendicular to said flat plate portion at a region near said contact blade, a third wall portion extending across said flat plate portion in a direction perpendicular to said flat plate portion and to said first and second wall portions to connect between said first and second wall portions at their edges to form a boxlike portion near said contact blade, said box-like portion serving as said first means, and finger tabs integrally connected to opposite edges of said flat plate portion near said terminal portion and extending in a direction perpendicular to said flat plate portion, said finger tabs extending toward said contact blade and gradually curving to depart from one another, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension than said box-like portion of said shank portion so that said boxlike portion is interference-fitted into said first hole portion without establishing a space between said box-like portion and the sides of said first hole portion, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion, and additional hole portions communicating between said first and second hole portions, being arranged along opposite sides of said second hole portion and having dimensions so that said finger tabs are able to be inserted therein with the free ends thereof being forced towards each other by surfaces of said additional hole portions.
Claim 2
Dependent Claim
530 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, and at least one groove formed in an end portion of said projecting portion, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means engaging with said bottom of said first hole portion, a contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, a bent portion at the free end of said contact blade being received in said groove of said projecting portion, a terminal portion integrally extending from said shank in a opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, first and second wall portions extending from side edges of said flat plate portion in a direction perpendicular to said flat plate portion at a region near said contact blade, a third wall portion extending across said flat plate portion in a direction perpendicular to said flat plate portion and to said first and second wall portions to connect between said first and second wall portions at their edges to form a boxlike portion near said contact blade, said box-like portion serving as said first means, and finger tabs integrally connected to opposite edges of said flat plate portion near said terminal portion and extending in a direction perpendicular to said flat plate portion, said finger tabs extending toward said contact blade and gradually curving to depart from one another, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension than said box-like portion of said shank portion so that said boxlike portion is interference-fitted into said first hole portion without establishing a space between said box-like portion and the sides of said first hole portion, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion, and additional hole portions communicating between said first and second hole portions, being arranged along opposite sides of said second hole portion and having dimensions so that said finger tabs are able to be inserted therein with the free ends thereof being forced towards each other by surfaces of said additional hole portions.
Claim 3
Dependent Claim
68 words
The electrical connector member according to claim 1, wherein the free end of said contact blade convexly curves towards said flat side surface of said projecting portion of said insulating body and is reversely bent at the end thereof, the bottom of said groove at the end portion of said projecting portion being formed as an inclined surface to slidably receive said reversely bent portion of the contact.
Claim 4
Dependent Claim
55 words
The electrical connector member according to claim 1, wherein said terminal portion of said contact comprises a flat plate and side wall members extending from opposite sides of said flat plate in a direction perpendicular to the flat surface of said flat plate, said side wall members continuously and integrally connecting to said finger tabs.
Claim 5
Dependent Claim
67 words
The electrical connector member according to claim 3, wherein said flat plate of said terminal portion comprises a tab near said shank which is connected to said flat plate at one end and stands up over said flat plate from said one end to serve as said second means for engaging with an edge of said second hole portion of the supporting portion of the insulator body.
Claim 6
Dependent Claim
36 words
The electrical connector member according to claim 3, wherein said side wall members are less than said first, second and third wall portions of said shank in the height on the surface of the flat plate.
Claim 7
Dependent Claim
57 words
The electrical connector member according to claim 1, wherein said third wall portion across the flat plate portion of the shank comprises a first wall member integrally connected to said first wall portion and a second wall member integrally connected to said second wall portion, said first and second wall members being in engagement with one another.
Claim 8
Dependent Claim
81 words
The electrical connector member according to claim 1, wherein the flat plate portion of the shank of the electrical contact comprises an offset portion at an intermediate region thereof whereby said flat plate portion defines two different flat regions integrally interconnected by said offset portion, and each one of said different flat regions being confined in different ones of said first and second hole portions so that said flat portion having said offset portion may be accommodated in sAid supporting portion.
Claim 9
Dependent Claim
48 words
The electrical connector member according to claim 2, wherein said reversely bent portion of the contact blade has a flat tongue portion at the end thereof received in said groove, said end of the projecting portion of said insulator body is provided with inward extensions over the groove.
Claim 10
Dependent Claim
47 words
The electrical connector member according to claim 1, wherein said first hole portion of the supporting portion of the insulator body has outwardly tapered inner surface at the mouth thereof so that said first, second and third wall portions may be readily inserted into said first hole.
Claim 11
Dependent Claim
443 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means thereon engaging with a shoulder on said supporting portion, a bowed contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, the free end of said contact blade being positioned adjacent to the outer edge of said projecting portion, a terminal portion integrally extending from said shank in an opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, a barrier extending across said flat plate portion near said contact blade in a direction perpendicular to said flat plate portion, said barrier serving as said first means, and finger tabs integrally connected to opposite edges of said flat plate portion near said terminal portion and extending in a direction perpendicular to said flat plate portion, said finger tabs extending toward said contact blade and gradually curving to depart from one another, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension than said barrier of said shank portion so that said barrier is interference-fitted into said first hole portion without establishing a gap therebetween, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion, and additional hole portions communicating between said first and second hole portions, being arranged along opposite sides of said second hole portion and having dimensions so that said finger tabs are able to be inserted therein with the free ends thereof being resiliently engaged with the surfaces of said additional hole portions.
Claim 12
Dependent Claim
443 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means thereon engaging with a shoulder on said supporting portion, a bowed contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, the free end of said contact blade being positioned adjacent to the outer edge of said projecting portion, a terminal portion integrally extending from said shank in an opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, a barrier extending across said flat plate portion near said contact blade in a direction perpendicular to said flat plate portion, said barrier serving as said first means, and finger tabs integrally connected to opposite edges of said flat plate portion near said terminal portion and extending in a direction perpendicular to said flat plate portion, said finger tabs extending toward said contact blade and gradually curving to depart from one another, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension than said barrier of said shank portion so that said barrier is interference-fitted into said first hole portion without establishing a gap therebetween, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion, and additional hole portions communicating between said first and second hole portions, being arranged along opposite sides of said second hole portion and having dimensions so that said finger tabs are able to be inserted therein with the free ends thereof being resiliently engaged with the surfaces of said additional hole portions.
Claim 13
Dependent Claim
55 words
The electrical connector member according to claim 10, wherein said terminal portion of said contact comprises a flat plate and side wall members extending from opposite sides of said flat plate in a direction perpendicular to the flat surface of said flat plate, said side wall members continuously and integrally connecting to said finger tabs.
Claim 14
Dependent Claim
66 words
The electrical connector member according to claim 11, wherein said flat plate of said terminal portion comprises a tab near said shank which is connected to said flat plate at one end and stanDs up over said flat plate from said one end to serve said second means for engaging with an edge of said second hole portion of the supporting portion of the insulator body.
Claim 15
Dependent Claim
81 words
The electrical connector member according to claim 10, wherein said barrier comprises first and second wall portions extending from the side edges of said flat portion in a direction perpendicular to said flat plate portion, and a third wall portion extending across said flat plate portion in a direction perpendicular to said flat plate portion and to said first and second wall portions to join between said first and second wall portions to form a U-shaped section near said contact blade.
Claim 16
Dependent Claim
418 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means thereon engaging with said bottom of said first hole portion, a bowed contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, the free end of said contact blade being positioned adjacent to the outer edge of said projecting portion, a terminal portion integrally extending from said shank in an opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, first and second wall portions extending from side edges of said flat plate portion in a direction perpendicular to said flat plate portion at a region near said contact blade, a third wall portion extending across said flat plate portion in a direction perpendicular to said flat plate portion and to said first and second wall portions to connect between said first and second wall portions at their edges to form a box-like portion near said contact blade, said box-like portion serving as said first means, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension that said box-like portion of said shank portion so that said box-like portion is interference-fitted into said first hole portion without establishing a space between said box-like portion and the sides of first hole portion, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion.
Claim 17
Dependent Claim
418 words
In an electrical connector member, at least one contact of electrical conducting material and an insulator body for supporting said contact, said insulator body comprising at least one contact supporting portion having one hole penetrating therethrough which has a greater first hole portion and a smaller second hole portion interconnected to said first hole portion at the bottom of said first hole portion, an insulating projecting portion projecting from said contact supporting portion in an extending direction of said hole with a flat side surface, said at least one contact comprising a shank accommodated in the hole of said supporting portion with a first means thereon engaging with said bottom of said first hole portion, a bowed contact blade extending integrally from said shank portion along said flat side surface of said projecting portion, the free end of said contact blade being positioned adjacent to the outer edge of said projecting portion, a terminal portion integrally extending from said shank in an opposite direction of the contact blade and a second means engaging with an edge of said hole of said supporting portion at the opposite side thereof in relation to said projecting portion so that said contact may be prevented from falling off said insulator body by cooperating action between said first and second means and said supporting portion; the improvement comprising, said shank of said contact comprising, a flat plate portion integrally connected to said contact blade and said terminal portion, first and second wall portions extending from side edges of said flat plate portion in a direction perpendicular to said flat plate portion at a region near said contact blade, a third wall portion extending across said flat plate portion in a direction perpendicular to said flat plate portion and to said first and second wall portions to connect between said first and second wall portions at their edges to form a box-like portion near said contact blade, said box-like portion serving as said first means, said contact supporting portion including said hole penetrating therethrough comprising, said first hole portion having slightly less dimension that said box-like portion of said shank portion so that said box-like portion is interference-fitted into said first hole portion without establishing a space between said box-like portion and the sides of first hole portion, said second hole portion having slightly greater dimensions than the thickness and the width of said flat plate portion of said shank so that said flat plate portion is loosely accommodated in said second hole portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |