US2497484A - Electrical terminal - Google Patents

Electrical terminal Download PDF

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Publication number
US2497484A
US2497484A US729539A US72953947A US2497484A US 2497484 A US2497484 A US 2497484A US 729539 A US729539 A US 729539A US 72953947 A US72953947 A US 72953947A US 2497484 A US2497484 A US 2497484A
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United States
Prior art keywords
terminal
slot
leg
dished
electrical terminal
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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
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US729539A
Inventor
Frank A Wood
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Zenith Electronics LLC
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Zenith Radio Corp
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Publication date
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Priority to US729539A priority Critical patent/US2497484A/en
Application granted granted Critical
Publication of US2497484A publication Critical patent/US2497484A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/14—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by wrapping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case

Definitions

  • This invention relates to electrical terminals and has for an object the provision of an improved electrical terminal which is inexpensive to manufacture, simple to utilize and effective in the performance of its function.
  • Figure 1 is a front view of one embodiment of the present invention
  • Figure 2 is a sectional view taken on line 22 of Figure 1;
  • Figure 3 is a perspective view of a portion of the device of Figure 1;
  • Figure 4 is a perspective view of a modification of the device of Figure 1;
  • Figure 5 is a sectional view taken on the line 5-5 of Figure 4;
  • a coil form 5 has an integrally formed collar 8 having a rectangular slot I therein for the passage therethrough of a terminal 8.
  • the terminal 8 includes a dished-in or U-channel portion 9 and an upstanding barb lll.
  • a securing leg ll of the terminal 8 has suitable notches H to facilitate the wrapping and soldering of a coil lead (not shown)
  • a positioning-leg l3, adjacent to the securing leg I I, is likewise provided with notches ll to facilitate the wrapping and soldering necessary to incorporate the coil lead in any desired electrical circuit.
  • the securing leg II is inserted into the slot I and, by finger pressure of the operator, is pressed into a tightly locked position.
  • the dished-in portion 9 of the terminal 8 cooperates with the lower edge of theslot 1 to force the upper edges of the open U-shaped channel against the upper edge of the slot I by reason of the inherent spring acterminals presently being described are of extremely small mass and light in weight, such an engagement of the upper edges of the open U- shaped channel with the upper edge of the slot I. is sumcient to prevent any movement of the terminal 8 normal to its longitudinal axis.
  • Such a relationship between the terminal and the slot allows for a relatively large tolerance on the width dimension of the slot. That is to saysnug anchorage of the terminal in its slot is not dependent upon the width of the slot and hence the tolerance on the width dimension can be held positive to provide ample working tolerance.
  • the tolerance onthe height dimension of the slot 1 can be relatively liberal in both the plus and minus directions because slight variations in the height dimension are. compensated for by the inherent spring action, or resiliency, of the open U-shaped channel of the dished-in portion I.
  • terminal 8 is shown locked in place in the collar 8 of the coil form 5, it is the intention to cover the use of this type of terminal in any insulation having sutlicient thickness to adequately engage and support the dished-in portion of the terminal.
  • the terminal can be designed to cooperate fully with insulation of various thicknesses.
  • the sheariormed portion l5 acts upon the bounds of a slot, similar to the slot I tion of the metal in the terminal. Since the in Figure 2. to hold the terminal 8 tightly in its slot without up and down play.
  • the dished -in portion 9 of Figure 3 is preferred in particularly small terminals because'it is easier to form. Also, relatively light gage metals are used in these small terminals. the portion 8,
  • the shear-formed portion l5 shown in Figures 4 and 5 is preferred in terminals that are appreciably wider and heavier than the terminals shown in Figures 1, 2 and 3, because the shearformed portion 15 possesses a stronger restoring force in its resilient action.
  • An electrical terminal having a pair of integral legs at an angle to each other, said terminal being mounted in a piece of insulation
  • said insulation having a slot therethrough for the passage of one of said legs, said one leg havcooperating to resist movement of said termina in said slot.
  • an electrical terminal am a support for saidterminal, said terminal havim a pair of legs lying at an angle to each other said support being of an electrical insulating ma terial and having a slot therein for passage 0 one of said legs therethrough, said one leg hav ing a portion intermediate its edges lying in plane substantially spaced from the plane of it edges supported in said slot by resilient frictional engagement with the insulating materia bounding said slot, the other of said legs being disposed on one side of said intermediate portion and a barb being spaced from said other leg am pointing toward the plane oi-said other leg, saiz barb projecting from said securing leg at a distance from said other leg which is substantially equal to the thickness of said insulating materia bounding said slot.

Description

Feb. 14, 1950 F. A. WOOD 2,497,484
' ELECTRICAL TERMINAL Filed Feb. 19, 1947 Fig.1
Fig. 5
FRANK A. W000 INVENTOR.
HIS ATTORNEY m mm 4 Patented Feb. 14,v 1950 ELECTRICAL TERMINAL Frank A. Wood, Elmhurst, n1, ascignor to Zenith Radio Corporation, a corporation of Illinois Application February 19, 1947, Serial No. 129,539
2 Claims. (Cl. 173-868) This invention relates to electrical terminals and has for an object the provision of an improved electrical terminal which is inexpensive to manufacture, simple to utilize and effective in the performance of its function.
The features of the present invention which are believed to be novel are set forth with particularity in the appended claims. The present invention itself, both as to its organization and manner of operation, together with further objects and advantages thereof may best be understood by reference to the following description taken in connection with accompanying drawings in which: I
Figure 1 is a front view of one embodiment of the present invention;
' Figure 2 is a sectional view taken on line 22 of Figure 1;
Figure 3 is a perspective view of a portion of the device of Figure 1;
Figure 4 is a perspective view of a modification of the device of Figure 1; and
Figure 5 is a sectional view taken on the line 5-5 of Figure 4;
In Figures 1 and 2, a coil form 5 has an integrally formed collar 8 having a rectangular slot I therein for the passage therethrough of a terminal 8.
As the coil'form shown in Figure 1 is of the endmolded type, the slot 1 in the collar 6 is easily and economically formed in the molding operation.
In Figure3, in detail, the terminal 8 includes a dished-in or U-channel portion 9 and an upstanding barb lll. A securing leg ll of the terminal 8 has suitable notches H to facilitate the wrapping and soldering of a coil lead (not shown) A positioning-leg l3, adjacent to the securing leg I I, is likewise provided with notches ll to facilitate the wrapping and soldering necessary to incorporate the coil lead in any desired electrical circuit.
In mounting the terminal 8 in the collar 6 of the coil form 5, the securing leg II is inserted into the slot I and, by finger pressure of the operator, is pressed into a tightly locked position.
As shown in Figure 2, the dished-in portion 9 of the terminal 8 cooperates with the lower edge of theslot 1 to force the upper edges of the open U-shaped channel against the upper edge of the slot I by reason of the inherent spring acterminals presently being described are of extremely small mass and light in weight, such an engagement of the upper edges of the open U- shaped channel with the upper edge of the slot I. is sumcient to prevent any movement of the terminal 8 normal to its longitudinal axis. Such a relationship between the terminal and the slot allows for a relatively large tolerance on the width dimension of the slot. That is to saysnug anchorage of the terminal in its slot is not dependent upon the width of the slot and hence the tolerance on the width dimension can be held positive to provide ample working tolerance.
Likewise. but to a somewhat-lesser degree. the tolerance onthe height dimension of the slot 1 can be relatively liberal in both the plus and minus directions because slight variations in the height dimension are. compensated for by the inherent spring action, or resiliency, of the open U-shaped channel of the dished-in portion I.
In Figure 1, the securing leg I I of the terminal 8 is threaded through the slot 1 and pushed through the slotto a point where its positioning leg I! abuts the left side of the collar 8. At this point, the upstanding barb HI is no longer depressed by the upper edge of the slot 1 and, by reason of its inherent resiliency, pops up slightly to resist any longitudinal backward movement of the terminal 8 in the slot I.
The abutting of the positioning le it of the terminal 8 against the left side of the collar 8 and the abutting of the upstanding barb l0 against the right side of the collar 6, plus the engagement of the upper edges of the open U- shaped channel of the dished-in portion 9 against the upper edge of the slot I, results in the terminal being locked against movement in any direction in the coil form 5.
While the terminal 8 is shown locked in place in the collar 8 of the coil form 5, it is the intention to cover the use of this type of terminal in any insulation having sutlicient thickness to adequately engage and support the dished-in portion of the terminal. Of course, the terminal can be designed to cooperate fully with insulation of various thicknesses.
In Figure 4, which is one modification of this terminal arrangement, a shear-formed portion I5 is substituted for the dished-in portion 8 illustrated in Figure 3.
In the sectional view Figure 5, the sheariormed portion l5, by reason of its resiliency, acts upon the bounds of a slot, similar to the slot I tion of the metal in the terminal. Since the in Figure 2. to hold the terminal 8 tightly in its slot without up and down play.
The dished -in portion 9 of Figure 3 is preferred in particularly small terminals because'it is easier to form. Also, relatively light gage metals are used in these small terminals. the portion 8,
3 being dished-in all around, resists the bending down oi the upper edges of the dished-in portion when the terminal is inserted in its slot. a
The shear-formed portion l5 shown in Figures 4 and 5 is preferred in terminals that are appreciably wider and heavier than the terminals shown in Figures 1, 2 and 3, because the shearformed portion 15 possesses a stronger restoring force in its resilient action.
While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects, and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of this invention.
I claim:
1. An electrical terminal having a pair of integral legs at an angle to each other, said terminal being mounted in a piece of insulation,
said insulation having a slot therethrough for the passage of one of said legs, said one leg havcooperating to resist movement of said termina in said slot.
2. In combination. an electrical terminal am a support for saidterminal, said terminal havim a pair of legs lying at an angle to each other said support being of an electrical insulating ma terial and having a slot therein for passage 0 one of said legs therethrough, said one leg hav ing a portion intermediate its edges lying in plane substantially spaced from the plane of it edges supported in said slot by resilient frictional engagement with the insulating materia bounding said slot, the other of said legs being disposed on one side of said intermediate portion and a barb being spaced from said other leg am pointing toward the plane oi-said other leg, saiz barb projecting from said securing leg at a distance from said other leg which is substantially equal to the thickness of said insulating materia bounding said slot.
FRANK A. WOOD.
REFERENCES CITED The following references are of record in thi file of this patent:
UNITED STATES PATENTS Number
US729539A 1947-02-19 1947-02-19 Electrical terminal Expired - Lifetime US2497484A (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600188A (en) * 1949-10-06 1952-06-10 Hugh W Batcheller Spade connector
US2627567A (en) * 1947-09-27 1953-02-03 King Seeley Corp Switch
US2759223A (en) * 1950-11-08 1956-08-21 Cinch Mfg Corp Electrical socket and contacts therefor
DE962813C (en) * 1952-06-29 1957-04-25 Standard Elek K Ag Pluggable Loetoese
US2807791A (en) * 1954-08-17 1957-09-24 William H Wallo Solder lug collar
US2886681A (en) * 1956-05-03 1959-05-12 Bourns Lab Inc Variable resistor construction
US2924807A (en) * 1955-09-13 1960-02-09 Gen Railway Signal Co Terminal wire connectors and mounting means therefor
US2947965A (en) * 1956-07-25 1960-08-02 Ray R Scoville Push-in terminal lugs
US2955238A (en) * 1956-10-25 1960-10-04 Cornell Dubilier Electric Electromagnetic coil
DE1093845B (en) * 1957-12-07 1960-12-01 Busch Jaeger Duerener Metall Contact connection for the supply lines of electrical devices, especially for heating pad switches
DE1111261B (en) * 1959-04-03 1961-07-20 Elektroschaltgeraete Eisenach Plug contact piece
US3047830A (en) * 1960-07-12 1962-07-31 Yslas Alfonso Solderless connection for electric sockets
US3148925A (en) * 1962-04-16 1964-09-15 Harano Katsumi Electrical connector
US3223960A (en) * 1962-12-07 1965-12-14 Elco Corp Contact with wave shaped tail sections
US3336561A (en) * 1964-12-30 1967-08-15 Ibm Electrical connection means
US3403370A (en) * 1965-10-15 1968-09-24 Wagner Electric Corp Mechanically based rear loading panel lamp
US3543226A (en) * 1967-08-23 1970-11-24 Ind Bull General Electric Sa S Connectors for printed circuit cards and the like
US3622931A (en) * 1970-03-26 1971-11-23 Circle F Ind Inc S-type fuse holder
US3637241A (en) * 1970-02-06 1972-01-25 Electro Mechanical Instr Co In Fabrication technique for electrical devices
US3960436A (en) * 1973-09-10 1976-06-01 International Standard Electric Corporation Electrical connector
FR2290769A1 (en) * 1974-11-05 1976-06-04 Amp Inc CONTACT TERMINAL
US4092622A (en) * 1976-04-21 1978-05-30 Siemens Aktiengesellschaft Coil body
US4166667A (en) * 1978-04-17 1979-09-04 Gte Sylvania, Incorporated Circuit board connector
FR2502836A1 (en) * 1981-03-30 1982-10-01 Chappel Bernard Two-compartment transformer for PCB - has insulating lid enclosing case on three sides and provided with flaps covering external face of case
US4602830A (en) * 1984-09-20 1986-07-29 Amp Incorporated Double row electrical connector
DE4418707A1 (en) * 1994-05-28 1995-11-30 Teves Gmbh Alfred Snap-action switch with linear switch movement
US5692920A (en) * 1995-12-14 1997-12-02 Molex Incorporated Zero insertion force electrical connector and terminal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110035A (en) * 1936-06-04 1938-03-01 Chirelstein Nathan Attachment plug
US2224902A (en) * 1937-06-18 1940-12-17 Western Union Telegraph Co Electrical terminal and switchboard terminal block
US2301288A (en) * 1940-10-31 1942-11-10 Rca Corp Terminal
US2303384A (en) * 1938-04-30 1942-12-01 H A Douglas Mfg Co Connector
US2446232A (en) * 1946-08-22 1948-08-03 Gen Railway Signal Co Plug board arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110035A (en) * 1936-06-04 1938-03-01 Chirelstein Nathan Attachment plug
US2224902A (en) * 1937-06-18 1940-12-17 Western Union Telegraph Co Electrical terminal and switchboard terminal block
US2303384A (en) * 1938-04-30 1942-12-01 H A Douglas Mfg Co Connector
US2301288A (en) * 1940-10-31 1942-11-10 Rca Corp Terminal
US2446232A (en) * 1946-08-22 1948-08-03 Gen Railway Signal Co Plug board arrangement

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627567A (en) * 1947-09-27 1953-02-03 King Seeley Corp Switch
US2600188A (en) * 1949-10-06 1952-06-10 Hugh W Batcheller Spade connector
US2759223A (en) * 1950-11-08 1956-08-21 Cinch Mfg Corp Electrical socket and contacts therefor
DE962813C (en) * 1952-06-29 1957-04-25 Standard Elek K Ag Pluggable Loetoese
US2807791A (en) * 1954-08-17 1957-09-24 William H Wallo Solder lug collar
US2924807A (en) * 1955-09-13 1960-02-09 Gen Railway Signal Co Terminal wire connectors and mounting means therefor
US2886681A (en) * 1956-05-03 1959-05-12 Bourns Lab Inc Variable resistor construction
US2947965A (en) * 1956-07-25 1960-08-02 Ray R Scoville Push-in terminal lugs
US2955238A (en) * 1956-10-25 1960-10-04 Cornell Dubilier Electric Electromagnetic coil
DE1093845B (en) * 1957-12-07 1960-12-01 Busch Jaeger Duerener Metall Contact connection for the supply lines of electrical devices, especially for heating pad switches
DE1111261B (en) * 1959-04-03 1961-07-20 Elektroschaltgeraete Eisenach Plug contact piece
US3047830A (en) * 1960-07-12 1962-07-31 Yslas Alfonso Solderless connection for electric sockets
US3148925A (en) * 1962-04-16 1964-09-15 Harano Katsumi Electrical connector
US3223960A (en) * 1962-12-07 1965-12-14 Elco Corp Contact with wave shaped tail sections
US3336561A (en) * 1964-12-30 1967-08-15 Ibm Electrical connection means
US3403370A (en) * 1965-10-15 1968-09-24 Wagner Electric Corp Mechanically based rear loading panel lamp
US3543226A (en) * 1967-08-23 1970-11-24 Ind Bull General Electric Sa S Connectors for printed circuit cards and the like
US3637241A (en) * 1970-02-06 1972-01-25 Electro Mechanical Instr Co In Fabrication technique for electrical devices
US3622931A (en) * 1970-03-26 1971-11-23 Circle F Ind Inc S-type fuse holder
US3960436A (en) * 1973-09-10 1976-06-01 International Standard Electric Corporation Electrical connector
FR2290769A1 (en) * 1974-11-05 1976-06-04 Amp Inc CONTACT TERMINAL
US4092622A (en) * 1976-04-21 1978-05-30 Siemens Aktiengesellschaft Coil body
US4166667A (en) * 1978-04-17 1979-09-04 Gte Sylvania, Incorporated Circuit board connector
FR2502836A1 (en) * 1981-03-30 1982-10-01 Chappel Bernard Two-compartment transformer for PCB - has insulating lid enclosing case on three sides and provided with flaps covering external face of case
US4602830A (en) * 1984-09-20 1986-07-29 Amp Incorporated Double row electrical connector
DE4418707A1 (en) * 1994-05-28 1995-11-30 Teves Gmbh Alfred Snap-action switch with linear switch movement
US5692920A (en) * 1995-12-14 1997-12-02 Molex Incorporated Zero insertion force electrical connector and terminal

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