Patent EP0273364A2 successfully refreshed from Google Patents.
EP0273364A2
Expired / Lapsed
EP
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Electronic part carrying strip and method of manufacturing the same
Assignee: Idec Corp
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Filing: 1987-12-22
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Granted: —
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Expires: 2007-12-22
Abstract
Abstract A strip for carrying a plurality of small size electronic parts (3) such as LEDs enclosed hermetically in resin and a method of manufacturing the same. A grid-like conductor strip member (100) is formed by interconnecting lead wires (12, 22; 13, 14; 23, 24) for the electronic parts in a grid-like pattern. The conductor strip member is partially embedded within resin to form a strip segment in which the plurality of electronic parts are mutually connected by runner member (4). The strip segment has a connecting portion formed integrally at least at one end thereof. By connecting together continuously a number of the strip segments by means of the connecting portions through repetitive cycles of molding operation, the electronic part carrying strip of any desired length up to a semi-endless length can be manufactured.
Inventors
- 👤 Michio Hirabayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:00
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/857; B; B29; B29C; B29C45/00; B29C45/0003; B29C45/14; B29C45/14639; B29C45/14655; H10P; H10P72/00; H10P72/04; H10P72/0446; H10W; H10W90/00; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
272 words
An interconnected strip carrying a plurality of small size electronic parts, comprising: a grid-like conductor strip member (100) of a belt-like shape as a whole including a plurality of preassigned mount locations provided at a predetermined pitch along a center line of said grid-like conductor strip member and destined for mounting thereon small size electronic parts, respectively, and a plurality of conductors (12, 22; 13, 14; 23, 24) extending from each of said preassigned mount locations to both sides (11, 21) of said grid-like conductor strip member, said conductors having respective one end portions positioned closely to one another adjacent to the associated one of said mount locations, those (12) of said conductors extending to one side (11) of said grid-like conductor strip member being connected to one another in the longitudinal direction with those conductors (22) extending to the other side (21) of said conductor strip member being connected one another in the longitudinal direction; a molded plastic strip segment including molded bodies (3) formed integrally with said grid-like conductor strip member (100) at said preassigned mount locations, respectively, and a runner member (4) formed integrally with said molded bodies (3) so as to interconnect said molded bodies (3); and connecting portion (5) formed at least at one end of said molded plastic strip segment at such a position that when said molded plastic strip segment is connected to the adjacent plastic strip segment molded in precedence by means of said connecting portion (5), the distance between said preassigned mount locations for the small size electronic parts positioned on both sides of said connecting portion (5) coinciding with said predetermined pitch.
Claim 2
Dependent Claim
272 words
An interconnected strip carrying a plurality of small size electronic parts, comprising: a grid-like conductor strip member (100) of a belt-like shape as a whole including a plurality of preassigned mount locations provided at a predetermined pitch along a center line of said grid-like conductor strip member and destined for mounting thereon small size electronic parts, respectively, and a plurality of conductors (12, 22; 13, 14; 23, 24) extending from each of said preassigned mount locations to both sides (11, 21) of said grid-like conductor strip member, said conductors having respective one end portions positioned closely to one another adjacent to the associated one of said mount locations, those (12) of said conductors extending to one side (11) of said grid-like conductor strip member being connected to one another in the longitudinal direction with those conductors (22) extending to the other side (21) of said conductor strip member being connected one another in the longitudinal direction; a molded plastic strip segment including molded bodies (3) formed integrally with said grid-like conductor strip member (100) at said preassigned mount locations, respectively, and a runner member (4) formed integrally with said molded bodies (3) so as to interconnect said molded bodies (3); and connecting portion (5) formed at least at one end of said molded plastic strip segment at such a position that when said molded plastic strip segment is connected to the adjacent plastic strip segment molded in precedence by means of said connecting portion (5), the distance between said preassigned mount locations for the small size electronic parts positioned on both sides of said connecting portion (5) coinciding with said predetermined pitch.
Claim 3
Dependent Claim
57 words
An electronic part carrying strip according to claim 1, wherein said connecting portion (5) has such a thickness that when said connecting portion of one plastic strip segment is coupled onto the connecting portion of other adjacent plastic strip segment, the total thickness of the coupled connecting portion becomes equal to that of said runner member (4).
Claim 4
Dependent Claim
51 words
An electronic part carrying strip according to claim 1, wherein each of said connecting portion (5) is formed with a tapered hole so that when the adjacent plastic strip segments are coupled to each other, plastic resin is injected into said tapered holes to thereby integrally interconnect said connecting portions (5).
Claim 5
Dependent Claim
24 words
An electronic part carrying strip according to claim 1, wherein said connecting portions (5) is formed in the form of an offset-like configuration (73).
Claim 6
Dependent Claim
24 words
An electronic part carrying strip according to claim 4, wherein the offset connecting portion has a thickness half that of said runner member (4).
Claim 7
Dependent Claim
25 words
An electronic part carrying strip according to claim 1, wherein said runner member (4) is provided at a location deviated laterally from the center axis.
Claim 8
Dependent Claim
30 words
An electronic part carrying strip according to claim 6, wherein the coupling structure of said connecting portions (5) is realized by fitting of a semi-circular projection in a semi-circular recess.
Claim 9
Dependent Claim
32 words
An electronic part carrying strip according to claim 1, wherein the conductor beams (12, 22) extending to said sides (11, 21) from said preassigned location are realized in an integral continuous structure.
Claim 10
Independent Claim
254 words
A method of manufacturing an electronic part carrying strip, comprising steps of: forming by blanking a grid-like conductor strip member of a belt-like shape as a whole including a plurality of preassigned mount locations provided at a predetermined pitch along the center axis of said grid-like conductor strip member and destined for mounting small size electronic parts, respectively, and a plurality of conductors extending from each of said preassigned mount locations to both sides of said grid-like conductor strip member, said conductors having respective one end portions positioned closely to one another adjacent to the associated one of said mount locations, wherein those of said conductors extending to one side of said grid-like conductor strip member being connected to one another in the longutidinal direction while those conductors extending to the other side of said conductor strip member being connected to one another in the longitudinal direction; placing said grid-like conductor strip member in a plastic molding die assembly provided with a recess (61) for receiving said grid-like conductor strip member, first cavities (71) for forming a plurality of molded bodies at a predetermined pitch, a second cavity (72) communicated with all of said first cavities for forming a runner member, third cavities (73) provided at ends of an array of said first and second cavities for forming connecting portions (5), and at least a fourth cavity (75) for injecting a plastic material into said first, second and third cavities from an injection nozzle (60); and injecting said plastic material from said injection nozzle.
Claim 11
Independent Claim
254 words
A method of manufacturing an electronic part carrying strip, comprising steps of: forming by blanking a grid-like conductor strip member of a belt-like shape as a whole including a plurality of preassigned mount locations provided at a predetermined pitch along the center axis of said grid-like conductor strip member and destined for mounting small size electronic parts, respectively, and a plurality of conductors extending from each of said preassigned mount locations to both sides of said grid-like conductor strip member, said conductors having respective one end portions positioned closely to one another adjacent to the associated one of said mount locations, wherein those of said conductors extending to one side of said grid-like conductor strip member being connected to one another in the longutidinal direction while those conductors extending to the other side of said conductor strip member being connected to one another in the longitudinal direction; placing said grid-like conductor strip member in a plastic molding die assembly provided with a recess (61) for receiving said grid-like conductor strip member, first cavities (71) for forming a plurality of molded bodies at a predetermined pitch, a second cavity (72) communicated with all of said first cavities for forming a runner member, third cavities (73) provided at ends of an array of said first and second cavities for forming connecting portions (5), and at least a fourth cavity (75) for injecting a plastic material into said first, second and third cavities from an injection nozzle (60); and injecting said plastic material from said injection nozzle.
Claim 12
Dependent Claim
32 words
A method of manufacturing an electronic part carrying strip according to claim 9, wherein a tapered pin is disposed within said third cavity which is located at one end of said array.
Claim 13
Dependent Claim
41 words
A method of manufacturing an electronic part carrying strip according to claim 9, wherein upon injection of the plastic material into said third cavity located at the other end of said array, said connecting portions (5) are fused together by heating.
Claim 14
Dependent Claim
33 words
A method of manufacturing an electronic part carrying strip according to claim 9, wherein the single injection nozzle is provided with said runner for injecting the plastic material being of a branched structure.
References Cited (Backward Citations)
No citation records indexed.
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