US3268850A - Electrical connectors employing a plug-in contact spring - Google Patents

Electrical connectors employing a plug-in contact spring Download PDF

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US3268850A
US3268850A US409520A US40952064A US3268850A US 3268850 A US3268850 A US 3268850A US 409520 A US409520 A US 409520A US 40952064 A US40952064 A US 40952064A US 3268850 A US3268850 A US 3268850A
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housing
contact spring
contact
stud
spring
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US409520A
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Bernutz Johannes
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International Standard Electric Corp
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International Standard Electric Corp
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403—Contacts forming part of a printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • 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
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • 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
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/707—Soldering or welding
    • 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
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement

Definitions

  • the invention relates to electrical connectors and particularly to a plug-in contact spring to be inserted into a spring strip housing.
  • the contact-making part with soldering lugs for use with diiierent types of connecting techniques such as soldering, wrapping crimping, or by welding.
  • the contact spring embodies at least one elastic stud which engages into corresponding recesses in the contact strip housing after the contact spring has been inserted into the housing from the connecting end, thereby securing the plug-in contact spring against shifting when a knife-blade is inserted or removed from said contact strip, however, permitting removal of a contact spring from said strip housing in the direction of the connecting end, after the stud has been disengaged.
  • the plug-in contact spring is provided in a simple way, besides for connection of leads by soldering of the conventional type also for wrapping or crimping and that the contact spring can be removed from the housing at the connecting end without impairing the advantages known with this contact spring construction.
  • the contactmaking portion of the contact spring is provided at the connecting end with two elastic studs, which with their bent ends engage into corresponding recesses in the housing, from which recesses they can be disengaged by means of a U-shaped extraction-tie for removing said contact spring.
  • a further embodiment of the invention provides that the tie is provided with a center-stud showing a stud which presses in the plug-in direction towards a protecting part of the spring strip housing.
  • said stud of the center-stud is made elastic, or the center-stud of the tie is made elastic and is stud rigid.
  • said stud is T-shaped, elastically twisted and fixed to the tie, and that it engages in the twisted position into recesses of the contact spring strip housing, or that the stud has the shape of an L, also elastically twisted, fixed to the tie, and that it engages into recesses of the housing in its twisted position.
  • FIGS. 1A-1G show perspective views of a contact spring and six difiFerent connecting lugs
  • FIGS. 2A-2F show assemblages of the elements in FIGS. lA1G into ahousing
  • FIGS. 3, 4 and 5 show a spring strip with several plugin contact springs from FIG. 1 as seen from the connecting end, in section from the side, and in section from the P;
  • FIGS. 6 and 7 show dilferent shapes of the tie or tieing device in two elevations
  • FIGS. 8 and 9 show a spring strip with contact springs and ties according to FIG. 6 seen from the connecting end, and in section from the side;
  • FIG. 10 shows a contact spring provided with a tie of another shape
  • FIGS. 11 and 12 show a partial view with a section through a contact spring strip with a contact spring according to FIG. 10;
  • FIG. 13 shows a partial view of a tie with another shape
  • FIGS. 14 and 15 show a spring strip in elevation and section, the contact springs of which are equipped with elastic studs at the contact-making portion;
  • FIG. 16 shows a perspective view of a contact spring
  • FIG. 17 shows a tool to extract a contact spring according to FIG. 16 from a spring strip as shown in FIGS. 14- and 15. v
  • the contact spring according to FIG. 1A consists of a contact-making part 1 which can be connected with different terminal lugs 2 to 7, shown in FIGS. lB-lG. This connection can be made by welding the two welding points 16 of part 1.
  • Part 1 encloses tie 11, shown more fully in FIG. 7, which is kept in place in part 1 by two grooves 17, as well as slots in the ends of part 1.
  • the tie 11 shows an elastic center-stud 13, provided with a rigid stud 14.
  • the contact spring is thereby fixed in the housing 9 at all sides with a very narrow play, because the contact-making part 1 of the contact spring is supported, when removing an inserted contact knife-blade, towards the housing side 20, thereby securing the contact spring also against shifting toward the contact knife-blade.
  • the tie 11 is provided with a rigid center-stud 13, having an elastic stud 14.
  • This stud engages with its tab 8, when inserting the contact spring into the housing 9, according to FIGS. 8 and 9, behind the stud 15 on said housing.
  • This type of contact spring is extracted from the housing in the same way as described above, in that the elastic stud 14 is disengaged by means of a pin-shaped tool 21, shown in FIG. 5, and thereupon the contact spring may be removed towards the terminal end.
  • FIG. 10 Another construction type of the contact spring according to FIG. 10 shows a tie 11, provided with a T-shaped stud 14. This stud engages, when inserting the contact spring into the housing 9, according to FIGS. 11 and 12, into recesses or receptacles 10 in said housing, thus securing the contact spring against shifting.
  • the elastic spring stud 14 is turned back so that it disengages from the recesses or receptacles 10 and the contact spring can be pulled 011 towards the terminal end.
  • the tension-spring stud 14 has the shape of an L, the effect, however, is the same.
  • FIG. 16 shows another type of the contact spring.
  • the contact-making part 1 is welded to the springs or studs 28 which serve the function of the studs 14.
  • the springs 28 engage the recesses or receptacles 10 of the housing 9 according to FIGS. 14 and 15, besides being welded with the terminal lug 2, the bent ends 12 of said holding springs 28 secure the contact spring against shifting through engaging into the recesses or receptacles 10.
  • An electrical connector comprising:
  • said spring including a contact-making part, slotted ends, and a terminal lug;
  • a fiat tie to control contact pressure, shaped to fit within said spring and to lock into said slotted ends; means on said terminal lug for receiving a suitable conductor;
  • said tie including an elastic stud to mate with said receptacles in said housing to hold the plug-in contact spring and tie in said housing;
  • said combination of housing, spring and tie forming a durable electrical connector to receive suitable contact knife blades and to disengage from such blades;
  • said combination remaining easy to disassemble by disengaging said stud and moving the contact spring in the direction of the terminal lug.
  • said housing incorporates two recesses as receptacles for receiving studs; said tie includes two elastic studs to mate with said two recesses; and space is provided in said housing to permit a U-shaped extracting tool to be received in order to extract said spring by disengaging the studs from the recesses.
  • the housing incorporates a projecting part as a receptacle for receiving and retaining studs; and the tie is provided with a center stud having a stud portion to be held by said projecting part.
  • the stud is L-shaped; and the receptacles in said housing are recesses which the stud can engage when twisted.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Measuring Leads Or Probes (AREA)

Description

Aug. 23, 1966 J. BERNUTZ 3,268,350
ELECTRICAL CONNECTORS EMPLOYING A PLUG-IN CONTACT SPRING Filed Nov. 6, 1964 4 Sheets-Sheet 1 Fg/E F/gJF Fig/6 Fig.2A 2 FIQZBJ F/QZC 5 t 250 :v w LL. F
Aug. 23, 1966 J. BERNUTZ 3,268,850
ELECTRICAL CONNECTORS EMPLOYING A PLUG-IN CONTACT SPRING Filed Nov. 6, 1964 4 Sheets-$heet 2 Aug. 23, 1966 J. BERNUTZ ELECTRICAL CONNECTORS EMPLOYING A PLUG-IN CONTACT SPRING Filed Nov. 6, 1964 4 Sheets-Sheet 3 J. BERNUTZ Aug. 23, 1966 ELECTRICAL CONNECTORS EMPLOYING A PLUG-IN CONTACT SPRING Filed Nov. 6, 1964 4 Sheets-Sheet 4 Fig. 77
Fig.76
United States Patent 3,268,850 ELECTRICAL CONNECTORS EMPLOYING A PLUG-IN CONTACT SPG Johannes Bernutz, Ludwigsburg-Hoheneck, Germany, as-
signor to International Standard Electric Corporation, New York, N.Y., a corporation of Delaware Filed Nov. 6, 1964, Ser. No. 409,520 Claims priority, application Germany, Nov. 14, 1963, St 21,326 7 Claims. (Cl. 339-217) The invention relates to electrical connectors and particularly to a plug-in contact spring to be inserted into a spring strip housing.
It is an object of the invention to provide devices having contact springs which may be used to connect leads in different ways, e.g. by soldering, wrapping or crimping.
It is a further object of the invention to make allowances for the removal of individual contact springs from the connecting end of a spring strip housing without the necessity of taking the housing apart or of disconnecting the leads connected to the contact spring.
It is yet another object of this invention to provide contact springs which are adaptable for mass production and employ relatively few steps, while making proper contacts and holding dimensions to close tolerances.
These objects are achieved, according to the invention, by providing the contact-making part with soldering lugs for use with diiierent types of connecting techniques such as soldering, wrapping crimping, or by welding. In a preferred embodiment the contact spring embodies at least one elastic stud which engages into corresponding recesses in the contact strip housing after the contact spring has been inserted into the housing from the connecting end, thereby securing the plug-in contact spring against shifting when a knife-blade is inserted or removed from said contact strip, however, permitting removal of a contact spring from said strip housing in the direction of the connecting end, after the stud has been disengaged. It is thereby achieved that the plug-in contact spring is provided in a simple way, besides for connection of leads by soldering of the conventional type also for wrapping or crimping and that the contact spring can be removed from the housing at the connecting end without impairing the advantages known with this contact spring construction.
In a further embodiment of the invention the contactmaking portion of the contact spring is provided at the connecting end with two elastic studs, which with their bent ends engage into corresponding recesses in the housing, from which recesses they can be disengaged by means of a U-shaped extraction-tie for removing said contact spring.
A further embodiment of the invention provides that the tie is provided with a center-stud showing a stud which presses in the plug-in direction towards a protecting part of the spring strip housing.
In a further embodiment of the invention, said stud of the center-stud is made elastic, or the center-stud of the tie is made elastic and is stud rigid.
Another embodiment of the invention is that said stud is T-shaped, elastically twisted and fixed to the tie, and that it engages in the twisted position into recesses of the contact spring strip housing, or that the stud has the shape of an L, also elastically twisted, fixed to the tie, and that it engages into recesses of the housing in its twisted position.
The accompanying drawings show examples of embodiments of the invention, wherein:
FIGS. 1A-1G show perspective views of a contact spring and six difiFerent connecting lugs;
3,268,850 Patented August .23, 1966 FIGS. 2A-2F show assemblages of the elements in FIGS. lA1G into ahousing;
FIGS. 3, 4 and 5 show a spring strip with several plugin contact springs from FIG. 1 as seen from the connecting end, in section from the side, and in section from the P;
FIGS. 6 and 7 show dilferent shapes of the tie or tieing device in two elevations;
FIGS. 8 and 9 show a spring strip with contact springs and ties according to FIG. 6 seen from the connecting end, and in section from the side;
FIG. 10 shows a contact spring provided with a tie of another shape;
FIGS. 11 and 12 show a partial view with a section through a contact spring strip with a contact spring according to FIG. 10;
FIG. 13 shows a partial view of a tie with another shape;
FIGS. 14 and 15 show a spring strip in elevation and section, the contact springs of which are equipped with elastic studs at the contact-making portion;
FIG. 16 shows a perspective view of a contact spring; and
FIG. 17 shows a tool to extract a contact spring according to FIG. 16 from a spring strip as shown in FIGS. 14- and 15. v
The contact spring according to FIG. 1A consists of a contact-making part 1 which can be connected with different terminal lugs 2 to 7, shown in FIGS. lB-lG. This connection can be made by welding the two welding points 16 of part 1. Part 1 encloses tie 11, shown more fully in FIG. 7, which is kept in place in part 1 by two grooves 17, as well as slots in the ends of part 1. The tie 11 shows an elastic center-stud 13, provided with a rigid stud 14.
When inserting a contact spring, according to FIG. 1A, into the spring strip housing 9, according to FIGS. 3, 4 and 5, from the connecting end, tab or tongue 8 of the stud 14 slides, with an elastic bending of the center stud 13 of the tie 11, along the oblique surface 18 of the fillet 19 in the housing 9, and engages into the final position of the contact spring in said housing in recesses or receptacles 10 into which the tab 8 inserts.
The contact spring is thereby fixed in the housing 9 at all sides with a very narrow play, because the contact-making part 1 of the contact spring is supported, when removing an inserted contact knife-blade, towards the housing side 20, thereby securing the contact spring also against shifting toward the contact knife-blade.
When the contact spring should be removed towards the connecting end the elastic center-stud 13 of the tie 11 is laterally pushed by means of a pin-shaped tool 21 to such an extent that the tab 8 disengages from receptacles 10 and thereupon the contact spring can be removed.
In another type of construction according to FIG. 6 the tie 11 is provided with a rigid center-stud 13, having an elastic stud 14. This stud engages with its tab 8, when inserting the contact spring into the housing 9, according to FIGS. 8 and 9, behind the stud 15 on said housing. This type of contact spring is extracted from the housing in the same way as described above, in that the elastic stud 14 is disengaged by means of a pin-shaped tool 21, shown in FIG. 5, and thereupon the contact spring may be removed towards the terminal end.
Another construction type of the contact spring according to FIG. 10 shows a tie 11, provided with a T-shaped stud 14. This stud engages, when inserting the contact spring into the housing 9, according to FIGS. 11 and 12, into recesses or receptacles 10 in said housing, thus securing the contact spring against shifting. When the contact spring should 'be removed from the contact strip housing 9 the elastic spring stud 14 is turned back so that it disengages from the recesses or receptacles 10 and the contact spring can be pulled 011 towards the terminal end.
According to another type of the tie 11, according to FIG. 13, the tension-spring stud 14 has the shape of an L, the effect, however, is the same.
FIG. 16 shows another type of the contact spring. In this type the contact-making part 1 is welded to the springs or studs 28 which serve the function of the studs 14. The springs 28 engage the recesses or receptacles 10 of the housing 9 according to FIGS. 14 and 15, besides being welded with the terminal lug 2, the bent ends 12 of said holding springs 28 secure the contact spring against shifting through engaging into the recesses or receptacles 10.
When a contact spring shall be pulled off the housing 9, a fork-shaped tool, shown in FIG. 17, is plugged onto the contact spring. Thereby the two holding springs 28 are disengaged from the recesses 10 and the contact spring can be pulled off towards the terminal end.
While the principles of the invention have been described above in connection with specific apparatus and applications, it is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.
What is claimed. is:
1. An electrical connector, comprising:
a housing;
receptacles in said housing for receiving studs;
a plug-in contact spring to be inserted into said housing;
said spring including a contact-making part, slotted ends, and a terminal lug;
a fiat tie to control contact pressure, shaped to fit within said spring and to lock into said slotted ends; means on said terminal lug for receiving a suitable conductor;
said tie including an elastic stud to mate with said receptacles in said housing to hold the plug-in contact spring and tie in said housing;
said combination of housing, spring and tie forming a durable electrical connector to receive suitable contact knife blades and to disengage from such blades; and
said combination remaining easy to disassemble by disengaging said stud and moving the contact spring in the direction of the terminal lug.
2. An electrical connector substantially as claimed in claim 1, in which:
said housing incorporates two recesses as receptacles for receiving studs; said tie includes two elastic studs to mate with said two recesses; and space is provided in said housing to permit a U-shaped extracting tool to be received in order to extract said spring by disengaging the studs from the recesses. 3. An electrical connector substantially as claimed in claim 1, in which:
the housing incorporates a projecting part as a receptacle for receiving and retaining studs; and the tie is provided with a center stud having a stud portion to be held by said projecting part. 4. An electrical connector substantially as claimed in claim 3,. in which:
the stud portion of the center stud is made elastic. 5. An electrical connector substantially as claimed in claim 3, in which:
the center stud is composed of elastic material; and the stud portion of the center stud is composed of rigid material. 6. An electrical connector substantially as claimed in claim 1, in which:
the stud is made T-shaped; and the receptacles in said housing are recesses which the stud can engage when twisted. 7. An electrical connector substantially as claimed in claim 1, in which:
the stud is L-shaped; and the receptacles in said housing are recesses which the stud can engage when twisted.
References Cited by the Examiner UNITED STATES PATENTS 3,069,652 12/1962 Greco 339-176 3,079,5 82 2/ 1963 Lazar 339-217 FOREIGN PATENTS 1,214,047 4/ 1960 France.
860,331 2/ 1961 Great Britain. 869,447 5/ 1961 Great Britain.
EDWARD C. ALLEN, Primary Examiner.
PATRICK A. CLIFFORD, Examiner.

Claims (1)

1. AN ELECTRICAL CONNECTOR, COMPRISING: A HOUSING; RECEPTACLES IN SAID HOUSING FOR RECEIVING STUDS; A PLUG-IN CONTACT SPRING TO BE INSERTED INTO SAID HOUSING: SAID SPRING INCLUDING A CONTACT-MAKING PART, SLOTTED ENDS, AND A TERMINAL LUG; A FLAT TIE TO CONTROL CONTACT PRESSURE, SHAPED TO FIT WITHIN SAID SPRING AND LOCK INTO SLOTTED ENDS; MEANS ON SAID TERMINAL LUG FOR RECEIVING A SUITABLE CONDUCTOR; SAID TIE INCLUDING AN ELASTIC STUD TO MATE WITH SAID RECEPTACLES IN SAID HOUSING TO HOLD THE PLUG-IN CONTACT SPRING AND TIE IN SAID HOUSING; SAID COMBINATION OF HOUSING, SPRING AND TIE FORMING A DURABLE ELECTRICAL CONNECTOR TO RECEIVE SUITABLE CONTACT KNIFE BLADES AND TO DISENGAGED FROM SUCH BLADES; AND SAID COMBINATION REMAINING EASY TO DISASSEMBLE BY DISENGAGING SAID STUD AND REMOVING THE CONTACT SPRING IN THE DIRECTION OF THE TERMINAL LUG
US409520A 1963-11-14 1964-11-06 Electrical connectors employing a plug-in contact spring Expired - Lifetime US3268850A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEST21325A DE1238534B (en) 1963-11-14 1963-11-14 Switching device for contact spring strips
DEST021324 1963-11-14
DEST021326 1963-11-14
DEST22732A DE1279165B (en) 1963-11-14 1964-09-26 Switching device for contact spring strips
NL6607976A NL6607976A (en) 1963-11-14 1966-06-09

Publications (1)

Publication Number Publication Date
US3268850A true US3268850A (en) 1966-08-23

Family

ID=27512245

Family Applications (4)

Application Number Title Priority Date Filing Date
US409192A Expired - Lifetime US3278714A (en) 1963-11-14 1964-11-05 Supporting frame for printed circuit board
US409215A Expired - Lifetime US3316525A (en) 1963-11-14 1964-11-05 Arrangement of contact spring strips
US409520A Expired - Lifetime US3268850A (en) 1963-11-14 1964-11-06 Electrical connectors employing a plug-in contact spring
US485683A Expired - Lifetime US3284604A (en) 1963-11-14 1965-09-08 Switching arrangement for contact spring strips

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US409192A Expired - Lifetime US3278714A (en) 1963-11-14 1964-11-05 Supporting frame for printed circuit board
US409215A Expired - Lifetime US3316525A (en) 1963-11-14 1964-11-05 Arrangement of contact spring strips

Family Applications After (1)

Application Number Title Priority Date Filing Date
US485683A Expired - Lifetime US3284604A (en) 1963-11-14 1965-09-08 Switching arrangement for contact spring strips

Country Status (10)

Country Link
US (4) US3278714A (en)
BE (4) BE655779A (en)
BR (2) BR6464310D0 (en)
CH (3) CH426979A (en)
DE (3) DE1590532B2 (en)
DK (1) DK112178B (en)
FR (1) FR1416048A (en)
GB (2) GB1071695A (en)
NL (4) NL147608B (en)
SE (1) SE321975B (en)

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US3509519A (en) * 1967-01-13 1970-04-28 Int Standard Electric Corp Female connectors
US3577090A (en) * 1969-08-25 1971-05-04 Shell Oil Co Fast settling, stable amplifier circuit
US3614707A (en) * 1968-10-09 1971-10-19 Siemens Ag Electrical connector
US3656093A (en) * 1967-07-14 1972-04-11 Amp Inc Electrical connectors
EP0363170A2 (en) * 1988-10-07 1990-04-11 Molex Incorporated Elastically supported dual cantilever beam pin-receiving electrical contact
EP1487247A1 (en) * 2003-06-13 2004-12-15 Sumitomo Wiring Systems, Ltd. Electrical connector housing
US20070059993A1 (en) * 2005-09-15 2007-03-15 Delta Electronics, Inc. Signal line socket
US20130056239A1 (en) * 2011-09-05 2013-03-07 Frank Hayama Conductive element and method for manufacturing the same
EP2766956A1 (en) * 2011-10-14 2014-08-20 Delphi Technologies, Inc. Tuning fork electrical contact with prongs having non-rectangular shape
WO2019224053A1 (en) * 2018-05-22 2019-11-28 Phoenix Contact Gmbh & Co. Kg Contact device with a spring fork

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US4008942A (en) * 1975-07-29 1977-02-22 General Signal Corporation Printed circuit board holding spring
FR2341974A1 (en) * 1976-02-18 1977-09-16 Causse Raoul LOW VOLTAGE LINE PROTECTION DEVICE, ESPECIALLY FOR TELEPHONE NETWORKS
US4133022A (en) * 1977-01-17 1979-01-02 Moore Industries Rack assembly
FR2398431A1 (en) * 1977-07-21 1979-02-16 Telic FRONT PANEL OF EQUIPMENT BOARD
US4215386A (en) * 1978-03-03 1980-07-29 Modicon Division, Gould Inc. Modular panel construction for programmable controller
FR2422267A1 (en) * 1978-04-04 1979-11-02 Francelco Sa Multicontact electrical connector - has U=shaped contact element fixed by teeth in its outer branches
FR2427709A1 (en) * 1978-05-31 1979-12-28 Trt Telecom Radio Electr Two-wire to four-wire telephone circuit adaptor - has board with bridging contacts movable to another position on main circuit board
GB2042821B (en) * 1979-01-02 1983-03-09 Bunker Ramo Electrical connector
DE3014804C2 (en) * 1980-04-17 1982-06-16 C.A. Weidmüller KG, 4930 Detmold Connectors
US4417778A (en) * 1981-10-23 1983-11-29 Bell Telephone Laboratories, Incorporated Circuit interlock arrangement
US4490003A (en) * 1982-01-11 1984-12-25 C. R. Bard, Inc. Electrical connector
FR2562271B1 (en) * 1984-03-29 1986-07-18 Telecommunications Sa CONNECTOR OF AN OPTICAL FIBER AND A PHOTO-ELEMENT, RECEIVER OR TRANSMITTER, AND POSITIONING METHOD THEREOF
DE3501711A1 (en) * 1985-01-19 1986-10-02 Allied Corp., Morristown, N.J. CIRCUIT BOARD WITH INTEGRAL CONNECTOR
US4653828A (en) * 1985-04-22 1987-03-31 Amp Incorporated Pin shroud with universal latch means
DE3603881A1 (en) * 1986-02-07 1987-08-13 Preh Elektro Feinmechanik Connecting device of a film circuit (flexible circuit)
US4669797A (en) * 1986-04-06 1987-06-02 Allied Corporation Electrical connector assembly having a locking arrangement
GB8811665D0 (en) * 1988-05-17 1988-06-22 Bicc Plc Electrical connector
GB9115603D0 (en) * 1991-07-19 1991-09-04 Black & Decker Inc Improvements in electrical arrangements in power tools and switches
DE19530209A1 (en) * 1995-08-17 1997-02-20 Abb Patent Gmbh Electric switch with manual actuator in housing
DE29721298U1 (en) * 1997-12-02 1998-02-26 Festo AG & Co, 73734 Esslingen Connector device
JPH11215647A (en) * 1998-01-28 1999-08-06 Furukawa Electric Co Ltd:The Electrical junction box
DE19951789A1 (en) 1999-10-27 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Connection terminal
FR2924865B1 (en) 2007-12-10 2010-02-19 Integral Process CONNECTING DEVICE AND MEDICAL ACQUISITION SYSTEM OF ELECTRIC SIGNALS EQUIPPED WITH SUCH A CONNECTION DEVICE
DE102018110126B4 (en) * 2018-04-26 2019-11-28 Lisa Dräxlmaier GmbH CONTACT DEVICE FOR CONTACTING AN ELECTRIC CONNECTOR COMPONENT

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509519A (en) * 1967-01-13 1970-04-28 Int Standard Electric Corp Female connectors
US3656093A (en) * 1967-07-14 1972-04-11 Amp Inc Electrical connectors
US3614707A (en) * 1968-10-09 1971-10-19 Siemens Ag Electrical connector
US3577090A (en) * 1969-08-25 1971-05-04 Shell Oil Co Fast settling, stable amplifier circuit
EP0363170A2 (en) * 1988-10-07 1990-04-11 Molex Incorporated Elastically supported dual cantilever beam pin-receiving electrical contact
EP0363170A3 (en) * 1988-10-07 1991-07-24 Molex Incorporated Elastically supported dual cantilever beam pin-receiving electrical contact
EP1487247A1 (en) * 2003-06-13 2004-12-15 Sumitomo Wiring Systems, Ltd. Electrical connector housing
US20040253850A1 (en) * 2003-06-13 2004-12-16 Sumitomo Wiring Systems, Ltd. Electrical connector housing
US6984133B2 (en) 2003-06-13 2006-01-10 Sumitomo Wiring Systems, Ltd. Electrical connector housing having a bridging piece between circuit boards connected to a receiving unit
US20070059993A1 (en) * 2005-09-15 2007-03-15 Delta Electronics, Inc. Signal line socket
US20130056239A1 (en) * 2011-09-05 2013-03-07 Frank Hayama Conductive element and method for manufacturing the same
US8884162B2 (en) * 2011-09-05 2014-11-11 Frank Hayama Conductive element and method for manufacturing the same
EP2766956A1 (en) * 2011-10-14 2014-08-20 Delphi Technologies, Inc. Tuning fork electrical contact with prongs having non-rectangular shape
EP2766956A4 (en) * 2011-10-14 2015-05-20 Delphi Tech Inc Tuning fork electrical contact with prongs having non-rectangular shape
WO2019224053A1 (en) * 2018-05-22 2019-11-28 Phoenix Contact Gmbh & Co. Kg Contact device with a spring fork

Also Published As

Publication number Publication date
GB1071695A (en) 1967-06-14
DE1279165B (en) 1968-10-03
BE655777A (en) 1965-05-17
DE1590532B2 (en) 1971-06-03
BE655778A (en) 1965-05-17
DE1590532A1 (en) 1969-09-04
CH426979A (en) 1966-12-31
NL6413298A (en) 1965-05-17
BR6464310D0 (en) 1973-10-23
US3278714A (en) 1966-10-11
NL147608B (en) 1975-10-15
BR6464308D0 (en) 1973-10-23
DE1238534B (en) 1967-04-13
SE321975B (en) 1970-03-23
FR1416048A (en) 1965-10-29
BE655779A (en) 1965-05-17
DK112178B (en) 1968-11-18
NL6607976A (en) 1967-12-11
BE683693A (en) 1967-01-06
GB1089290A (en) 1967-11-01
CH427947A (en) 1967-01-15
CH422106A (en) 1966-10-15
NL6413297A (en) 1965-05-17
NL6413299A (en) 1965-05-17
US3316525A (en) 1967-04-25
US3284604A (en) 1966-11-08

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