CA1175519A - Insert for electrical connector having removable contacts - Google Patents
Insert for electrical connector having removable contactsInfo
- Publication number
- CA1175519A CA1175519A CA000404201A CA404201A CA1175519A CA 1175519 A CA1175519 A CA 1175519A CA 000404201 A CA000404201 A CA 000404201A CA 404201 A CA404201 A CA 404201A CA 1175519 A CA1175519 A CA 1175519A
- Authority
- CA
- Canada
- Prior art keywords
- contact
- passage
- fingers
- insert
- ribs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
- H01R13/4223—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means comprising integral flexible contact retaining fingers
- H01R13/4226—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means comprising integral flexible contact retaining fingers comprising two or more integral flexible retaining fingers acting on a single contact
-
- 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
Abstract
Abstract AN INSERT FOR AN ELECTRICAL
CONNECTOR HAVING REMOVABLE CONTACTS
A contact retaining insert (10) for an electrical connector that includes a bore (14) having a square configuration and adapted to receive the wire receiving portion of a contact having the same configuration which extends from one face 19 of the insert. The matching configurations of the passage 14 and the wire receiving portion of the contact prevent rotation of the contact thereby facilitating the connecting of a wire to the contact by wrapping the wire around the contact.
CONNECTOR HAVING REMOVABLE CONTACTS
A contact retaining insert (10) for an electrical connector that includes a bore (14) having a square configuration and adapted to receive the wire receiving portion of a contact having the same configuration which extends from one face 19 of the insert. The matching configurations of the passage 14 and the wire receiving portion of the contact prevent rotation of the contact thereby facilitating the connecting of a wire to the contact by wrapping the wire around the contact.
Description
-` 1175519 AN INSERT FOR AN ELECTRICAL
CONNECTOR HAVING REMOVABLE CONTACTS
This invention relates to electrical connectors and more particularly to an insert within the connector that retains electrical contacts.
Electrical connectors generally include a plug and receptable, each of which has an insert of dielectric material provided with multiple passages within which electrical contacts are retained. The insert is mounted within a metal shell of the connector. ~ome connectors provide for rearward insertion and front or rear release of the electrical contact for removal. Other types of connectors provide for front insertion and front or rear release of electrical contacts. These features are desirable and facilitate the assembly and servicing of the connectors. ~n example of a one piece molded insert for retaining contacts within a connector may be found in U.S. Patent 4,157,806 issued June 12, 1979 and entitled "Apparatus for Making Electrical Connector Insert." In the foregoing types of connectors, the electrical con-tacts in the connector have a mating end and a wire receiving end. Wires are attached to the wire receiving end of the contact by one of three methods, i.e., soldering, crimping or wrapping the wire around the rear end of the contact. To wrap the wire around the contact, wire wrapping tools are used to rotate a wire around the contact. The wire wrapping tool is similar to a drill in that a wire, attached to the forward portion of the tool, is placed against a contact so that when the tool rotates, the wire is wrapped around the contact. Unfort-unately, in a connector having an insert of the type shown in 4,157,806 patent, the contact rotates when a wire is wrapped around the contact. This prevents the wire from wrapping tightly around the contact which results in a poor electrical connection. One example of a means for preventing rotation of a contact in a connector is the addition of a separate locking plate mounted to the rear of the connector. The plate includes a plurality of apertures each having a configuration that keys to the configuration of a contact to prevent rotation of the contact. Accordingly, rotation of a contact during the process of attaching a wire to the contact by wrapping the wire around one end por~ion of the contact has been a problem to which practical and economical solutions are being sought.
Disclosure of-the Invention This invention provides an electrical connector insert for a connector that will prevent a contact from rotating once it is mounted within the connector insert. The invention is characterized by an electrical connector insert that includes a passage therein having a square shaped passage adapted to receive the wire receiving end of an electrical contact having the same configuration. The matching shapes of the passage and contact prevents rotation of the contact.
Accordingly, it is an advantage of this invention to provide an electrical connector insert that will prevent rotation of a contact once the contact is mounted in the connector i~;ert and hence, facilitate the wrappins of a wire around one end portion of the contact.
Another advantage of this invention is improved electrical contact between a wire wrapped around a contact and the contact.
Specifically, the invention is used in combination with an electrical connector insert for receiving and retaining a plurality of elongated electrical contacts, each contact having a forward mating portion, a rear wire receiving portion having at least one flat surface thereon and an enlarged medial section having a forwardly facing shoulder and a rearwardly facing shoulder, the insert being of the type having: a single piece unitary body of molded dielectric material having a plurality of passages therethrough from a front face to a rear face, each passage adapted to receive a respective electrical contact therein which is insertable from the front mg/ ~ 2 -" 1175519 face of the body, each passage dimensioned so that a portion of the rear wire receiving end of the contact extends out of the rear face of the body; a plurality of ribs integral at one radial end with a wall of each of the passages, each of the ribs terminating in one axial direction in a forwardly facing shoulder adapted to engage one of the contact shoulders when a contact is inserted into the body from the front face;
and a plurality of contact retention fingers integral with the body and located within each of the passages, each of the fingers extending rearwardly inwardly from the wall of the passage to a forward free end which terminates a predetermined distance from the rib shoulders, the free end adapted to engage the other of the contact shoulders when the contact is inserted into the body from the front face, the fingers being resiliently deflectable radially to permit the enlarged section of a contact to pass the free ends thereof upon insertion of the contact into the passage from the front face, the fingers returning to their original position behind the other of the contact shoulders to limit forward movement of the contact in the passage, the fingers being substantially rigid in one axial direction when in their original position so as to provide a positive stop against forward movement of an electrical contact. The invention relates to the improvement comprising: an annular ring in each of the passages, the ring integral with the other radial end of the ribs and having a central bore having a configuration that includes at least one flat surface and is adapted to receive a similarly shaped rear wire receiving end of a contact inserted into a passage whereby, when a contact is inserted into the passage from the front face of the body, the enlarged medial section of the contact is captivated between the free ends of the fingers and the shoulders of the ribs and the rear wire receiving portion of the contact extends through the bore in the annular ring and beyond the rear face of the body whereby the contact is prevented from rotating when a wire is wrapped around the wire receiving end of the contact.
~ mg/ K~ - 2a -Detailed Description of the Invention FIGURF 1 is a partial diagramatic view of an electrical connector insert incorporating the principles of this invention.
FIGURE 2 is a partial end view of the insert shown in FIGURE 1.
FIGURE 3 is a partial cross sectional side view of an alternate embodiment of the invention.
FIGURE 4 is a cross sectional view of the insert shown in FIGURE 3 taken along the lines IV-IV.
FIGURE 5 is a cross sectional view of the insert shown in FIGURE 3 taken along the lines V-V.
FIGURE 6 is a cross sectional view of the insert shown in FIGURE 3 taken along lines VI-VI.
FIGURE 7 illustrates a portion of an electrical connector assembly incorporating the principles of this invention.
Referring now to the drawings, FIGURE 1 illustrates an electrical connector insert 10 embodying the princi-ples of this invention. The insert 10 is generally comprised of a dielectrical material and includes a plurality of passages 11 (only one shown) each containing therein a plurality of contact retaining fingers 15 and a plurality of contact retaining ribs 12. Each of the contact retaining fingers 15 is resiliently and radially expandable outwardly and terminates in a free end 16. In this embodiment, there are four contact fingers 15 and ribs 12, although more or less may be used. The free ends 16 of each contact retaining finger 15 in each passage 11 form an annular shoulder facing towards one end of the passage 11. Each rib 12 has one radial end integrally connected to the wall of the passage 11 in the insert body 10. Integrally connected to the other radial end of each of the ribs 12 is an annular ring 13 that ~175519 includes a central bore 14 having a square shaped passage. Alternately, the passage 14 may take many shapes so long as it includes at least one flat surface and is configured or keyed to match the shape of the wire receiving end of a contact. Each o~ the ribs 12 teeminate at one axial end in an internal shoulder 17 that faces the free ends ]6 of the contact retaining fingers 15. To illustrate the features of the fingers 15 and ribs 12 they have been separated further apart.
FIGURES 3 and 7 show that the ends 16 of the fingers ]5 and the shoulders 17 of the ribs are spaced closely so 3S
to closely captivate the enlarged portion oE a c-~n~a~t.
FIGURE 2 is a portion of the rear face 19 of the insert 10 and illustrates the symmetric~l arrangement o~
the ribs 12 integrally connected together by the annular ring 13.
FIGURE 3 is a cross sectional view of a passage in an alternate embodiment of the insert 10 which includes only three ribs 12 and three fingers l~. ~he contact r~taining fingers 15 are resiliently and radially deflectable outwardly to allow the enlarged portion of a contact (not shown) to pass by the free ends 16 of the fingers 15 which then snap into place behind the enlarged portion of the contact. The enlarged portion of the contact is then captivated between the free end 16 of the deflectable Eingers 15 and the shoulders 17 of the ribs 12. The fingers 15 being substantially rigid in one - axial direction.
FIGURE 4 is a cross sectional view taken along the lines IV - IV of FI5URE 3 and illustrates the syn~etrica' arrang-ment of the three ribs 12 in the rear portion of the insert 10 and the location of the square shaped bore 14 in the annular ring 13 connecting one radial end of each of the ribs 12 together.
FIGURE 5 is a cross sectional view taken along the lines V - V of FIGURE 3 and illustrates the three resiliently and radially deflectable fingers 15 which are arranged in a shape of a truncate3 cone.
FIGURE 6 is a cross sectional view taken along the lines VI - VI of FIGURE 3 and illustrates the configura-tion of the passage 11 in the forward portion of the insert 10.
FIGURE 7 illustrat~s the portion of an electrical connector having a contact retaining insert 10 that incorporates the principals of this invention. The upper portion of the connector illustrates how a conta~r ?0 is mounted in the contact retaining insert by captivation of the enlarged portion 35 of the contact between the free end 16 of the fingers 15 and the shoulders at one end of the ribs 12. The lower portion of the connector illus-trates how a contact retaining tool 20 is inserted into the passage 11 through the forward face 18 of the insert 10 to deflect the contact retaining fingers 15 thereby disengaging the free ends 16 thereof from the forwardly facing shoulder 36 of the contact 30 to release the contact 30 for removal from the forward end of the insert 10.
The contact 30 includes a forward mating portion 31 and a rear wire receiving portion 32 having a configura-tion the same as that of passage 14 ( FIGURE 4), except slightly smaller. A portion of the rear wire receiving end 32 of the contact 30 extends beyond the rear face 19 of the insert 10 to permit the wrapping of a wire 40 around the rear wire receiving end 32 of the contact 30.
While a preferred embodiment of the invention has been disclosed, it will be apparent to those skilled in the art that the advantage of this invention may still be obtained even though minor changes are made to the inven-tion set forth in the appended claims or that certain ~175519 features of the invention may be used without corres-ponding use of other features. For instance, the configuration oE the bore 14 in the insert 10 may be rectangularly shaped or have any configuration that includes at least one flat surface and which ~.atches the configuration of the rear wire receiving portion of a contact inserted into the bore (14) so that the en~agement between the flat surface on the contact and the passage prevents rotation of the contact.
~ccordingly, it is intended that the illustrative and descriptive materials herein be used to illustrate the principles of the invention and not to limit the scope thereof.
CONNECTOR HAVING REMOVABLE CONTACTS
This invention relates to electrical connectors and more particularly to an insert within the connector that retains electrical contacts.
Electrical connectors generally include a plug and receptable, each of which has an insert of dielectric material provided with multiple passages within which electrical contacts are retained. The insert is mounted within a metal shell of the connector. ~ome connectors provide for rearward insertion and front or rear release of the electrical contact for removal. Other types of connectors provide for front insertion and front or rear release of electrical contacts. These features are desirable and facilitate the assembly and servicing of the connectors. ~n example of a one piece molded insert for retaining contacts within a connector may be found in U.S. Patent 4,157,806 issued June 12, 1979 and entitled "Apparatus for Making Electrical Connector Insert." In the foregoing types of connectors, the electrical con-tacts in the connector have a mating end and a wire receiving end. Wires are attached to the wire receiving end of the contact by one of three methods, i.e., soldering, crimping or wrapping the wire around the rear end of the contact. To wrap the wire around the contact, wire wrapping tools are used to rotate a wire around the contact. The wire wrapping tool is similar to a drill in that a wire, attached to the forward portion of the tool, is placed against a contact so that when the tool rotates, the wire is wrapped around the contact. Unfort-unately, in a connector having an insert of the type shown in 4,157,806 patent, the contact rotates when a wire is wrapped around the contact. This prevents the wire from wrapping tightly around the contact which results in a poor electrical connection. One example of a means for preventing rotation of a contact in a connector is the addition of a separate locking plate mounted to the rear of the connector. The plate includes a plurality of apertures each having a configuration that keys to the configuration of a contact to prevent rotation of the contact. Accordingly, rotation of a contact during the process of attaching a wire to the contact by wrapping the wire around one end por~ion of the contact has been a problem to which practical and economical solutions are being sought.
Disclosure of-the Invention This invention provides an electrical connector insert for a connector that will prevent a contact from rotating once it is mounted within the connector insert. The invention is characterized by an electrical connector insert that includes a passage therein having a square shaped passage adapted to receive the wire receiving end of an electrical contact having the same configuration. The matching shapes of the passage and contact prevents rotation of the contact.
Accordingly, it is an advantage of this invention to provide an electrical connector insert that will prevent rotation of a contact once the contact is mounted in the connector i~;ert and hence, facilitate the wrappins of a wire around one end portion of the contact.
Another advantage of this invention is improved electrical contact between a wire wrapped around a contact and the contact.
Specifically, the invention is used in combination with an electrical connector insert for receiving and retaining a plurality of elongated electrical contacts, each contact having a forward mating portion, a rear wire receiving portion having at least one flat surface thereon and an enlarged medial section having a forwardly facing shoulder and a rearwardly facing shoulder, the insert being of the type having: a single piece unitary body of molded dielectric material having a plurality of passages therethrough from a front face to a rear face, each passage adapted to receive a respective electrical contact therein which is insertable from the front mg/ ~ 2 -" 1175519 face of the body, each passage dimensioned so that a portion of the rear wire receiving end of the contact extends out of the rear face of the body; a plurality of ribs integral at one radial end with a wall of each of the passages, each of the ribs terminating in one axial direction in a forwardly facing shoulder adapted to engage one of the contact shoulders when a contact is inserted into the body from the front face;
and a plurality of contact retention fingers integral with the body and located within each of the passages, each of the fingers extending rearwardly inwardly from the wall of the passage to a forward free end which terminates a predetermined distance from the rib shoulders, the free end adapted to engage the other of the contact shoulders when the contact is inserted into the body from the front face, the fingers being resiliently deflectable radially to permit the enlarged section of a contact to pass the free ends thereof upon insertion of the contact into the passage from the front face, the fingers returning to their original position behind the other of the contact shoulders to limit forward movement of the contact in the passage, the fingers being substantially rigid in one axial direction when in their original position so as to provide a positive stop against forward movement of an electrical contact. The invention relates to the improvement comprising: an annular ring in each of the passages, the ring integral with the other radial end of the ribs and having a central bore having a configuration that includes at least one flat surface and is adapted to receive a similarly shaped rear wire receiving end of a contact inserted into a passage whereby, when a contact is inserted into the passage from the front face of the body, the enlarged medial section of the contact is captivated between the free ends of the fingers and the shoulders of the ribs and the rear wire receiving portion of the contact extends through the bore in the annular ring and beyond the rear face of the body whereby the contact is prevented from rotating when a wire is wrapped around the wire receiving end of the contact.
~ mg/ K~ - 2a -Detailed Description of the Invention FIGURF 1 is a partial diagramatic view of an electrical connector insert incorporating the principles of this invention.
FIGURE 2 is a partial end view of the insert shown in FIGURE 1.
FIGURE 3 is a partial cross sectional side view of an alternate embodiment of the invention.
FIGURE 4 is a cross sectional view of the insert shown in FIGURE 3 taken along the lines IV-IV.
FIGURE 5 is a cross sectional view of the insert shown in FIGURE 3 taken along the lines V-V.
FIGURE 6 is a cross sectional view of the insert shown in FIGURE 3 taken along lines VI-VI.
FIGURE 7 illustrates a portion of an electrical connector assembly incorporating the principles of this invention.
Referring now to the drawings, FIGURE 1 illustrates an electrical connector insert 10 embodying the princi-ples of this invention. The insert 10 is generally comprised of a dielectrical material and includes a plurality of passages 11 (only one shown) each containing therein a plurality of contact retaining fingers 15 and a plurality of contact retaining ribs 12. Each of the contact retaining fingers 15 is resiliently and radially expandable outwardly and terminates in a free end 16. In this embodiment, there are four contact fingers 15 and ribs 12, although more or less may be used. The free ends 16 of each contact retaining finger 15 in each passage 11 form an annular shoulder facing towards one end of the passage 11. Each rib 12 has one radial end integrally connected to the wall of the passage 11 in the insert body 10. Integrally connected to the other radial end of each of the ribs 12 is an annular ring 13 that ~175519 includes a central bore 14 having a square shaped passage. Alternately, the passage 14 may take many shapes so long as it includes at least one flat surface and is configured or keyed to match the shape of the wire receiving end of a contact. Each o~ the ribs 12 teeminate at one axial end in an internal shoulder 17 that faces the free ends ]6 of the contact retaining fingers 15. To illustrate the features of the fingers 15 and ribs 12 they have been separated further apart.
FIGURES 3 and 7 show that the ends 16 of the fingers ]5 and the shoulders 17 of the ribs are spaced closely so 3S
to closely captivate the enlarged portion oE a c-~n~a~t.
FIGURE 2 is a portion of the rear face 19 of the insert 10 and illustrates the symmetric~l arrangement o~
the ribs 12 integrally connected together by the annular ring 13.
FIGURE 3 is a cross sectional view of a passage in an alternate embodiment of the insert 10 which includes only three ribs 12 and three fingers l~. ~he contact r~taining fingers 15 are resiliently and radially deflectable outwardly to allow the enlarged portion of a contact (not shown) to pass by the free ends 16 of the fingers 15 which then snap into place behind the enlarged portion of the contact. The enlarged portion of the contact is then captivated between the free end 16 of the deflectable Eingers 15 and the shoulders 17 of the ribs 12. The fingers 15 being substantially rigid in one - axial direction.
FIGURE 4 is a cross sectional view taken along the lines IV - IV of FI5URE 3 and illustrates the syn~etrica' arrang-ment of the three ribs 12 in the rear portion of the insert 10 and the location of the square shaped bore 14 in the annular ring 13 connecting one radial end of each of the ribs 12 together.
FIGURE 5 is a cross sectional view taken along the lines V - V of FIGURE 3 and illustrates the three resiliently and radially deflectable fingers 15 which are arranged in a shape of a truncate3 cone.
FIGURE 6 is a cross sectional view taken along the lines VI - VI of FIGURE 3 and illustrates the configura-tion of the passage 11 in the forward portion of the insert 10.
FIGURE 7 illustrat~s the portion of an electrical connector having a contact retaining insert 10 that incorporates the principals of this invention. The upper portion of the connector illustrates how a conta~r ?0 is mounted in the contact retaining insert by captivation of the enlarged portion 35 of the contact between the free end 16 of the fingers 15 and the shoulders at one end of the ribs 12. The lower portion of the connector illus-trates how a contact retaining tool 20 is inserted into the passage 11 through the forward face 18 of the insert 10 to deflect the contact retaining fingers 15 thereby disengaging the free ends 16 thereof from the forwardly facing shoulder 36 of the contact 30 to release the contact 30 for removal from the forward end of the insert 10.
The contact 30 includes a forward mating portion 31 and a rear wire receiving portion 32 having a configura-tion the same as that of passage 14 ( FIGURE 4), except slightly smaller. A portion of the rear wire receiving end 32 of the contact 30 extends beyond the rear face 19 of the insert 10 to permit the wrapping of a wire 40 around the rear wire receiving end 32 of the contact 30.
While a preferred embodiment of the invention has been disclosed, it will be apparent to those skilled in the art that the advantage of this invention may still be obtained even though minor changes are made to the inven-tion set forth in the appended claims or that certain ~175519 features of the invention may be used without corres-ponding use of other features. For instance, the configuration oE the bore 14 in the insert 10 may be rectangularly shaped or have any configuration that includes at least one flat surface and which ~.atches the configuration of the rear wire receiving portion of a contact inserted into the bore (14) so that the en~agement between the flat surface on the contact and the passage prevents rotation of the contact.
~ccordingly, it is intended that the illustrative and descriptive materials herein be used to illustrate the principles of the invention and not to limit the scope thereof.
Claims (4)
1. In combination with an electrical connector insert for receiving and retaining a plurality of elongated electrical contacts, each contact having a forward mating portion, a rear wire receiving portion having at least one flat surface thereon and an enlarged medial section having a forwardly facing shoulder and a rearwardly facing shoulder, said insert of the type having: a single piece unitary body of molded dielectric material having a plurality of passages therethrough from a front face to a rear face, each passage adapted to receive a respective electrical contact therein which is insertable from the front face of said body, each passage dimensioned so that a portion of the rear wire receiving end of the contact extends out of the rear face of said body; a plurality of ribs integral at one radial end with a wall of each of said passages, each of said ribs terminating in one axial direction in a forwardly facing shoulder adapted to engage one of said contact shoulders when a contact is inserted into said body from the front face; and a plurality of contact retention fingers integral with said body and located within each of said passages, each of said fingers extending rearwardly inwardly from the wall of said passage to a forward free end which terminates a predetermined distance from said rib shoulders, said free end adapted to engage the other of said contact shoulders when said contact is inserted into said body from the front face, said fingers being resiliently deflectable radially to permit the enlarged section of a contact to pass the free ends thereof upon insertion of the contact into the passage from said front face, said fingers returning to their original position behind the other of said contact shoulders to limit forward movement of the contact in the passage, said fingers being substantially rigid in one axial direction when in their original position so as to provide a positive stop against forward movement of an electrical contact, the improvement comprising:
an annular ring in each of said passages, said ring integral with the other radial end of said ribs and having a central bore having a configuration that includes at least one flat surface and is adapted to receive a similarly shaped rear wire receiving end of a contact inserted into a passage whereby, when a contact is inserted into said passage from the front face of said body, the enlarged medial section of said contact is captivated between the free ends of said fingers and the shoulders of said ribs and the rear wire receiving portion of said contact extends through said bore in the annular ring and beyond the rear face of said body whereby the contact is prevented from rotating when a wire is wrapped around the wire receiving end of the contact.
an annular ring in each of said passages, said ring integral with the other radial end of said ribs and having a central bore having a configuration that includes at least one flat surface and is adapted to receive a similarly shaped rear wire receiving end of a contact inserted into a passage whereby, when a contact is inserted into said passage from the front face of said body, the enlarged medial section of said contact is captivated between the free ends of said fingers and the shoulders of said ribs and the rear wire receiving portion of said contact extends through said bore in the annular ring and beyond the rear face of said body whereby the contact is prevented from rotating when a wire is wrapped around the wire receiving end of the contact.
2. An insert for retaining an electrical contact of the type having a forward mating portion, an enlarged middle portion and a rear wire receiving portion that includes at least one flat surface, said insert comprising:
a body of dielectric material having a plurality of passages therethrough;
a plurality of resiliently radially deflectable fingers located in each of said passages, each of said fingers terminating in a free end which defines a shoulder facing towards one end of the passages;
a plurality of radially extending ribs located in each of said passages, each of said ribs integral at one radial end with said body and terminating at one axial end within said passage to define shoulders facing the ends of each of said fingers, said ribs and fingers adapted to captivate the enlarged middle portion of a contact inserted into a passage in the body; and a tubular member that is coaxial with said passage and integral with the other radial end of each of said ribs, said tubular member having a bore that has a configuration that is the same shape as the wire receiving end of the contact and a cross section slightly larger than the cross section of the wire receiving end of the contact whereby, when a contact is inserted into the passage in the body, the walls of said bore prevent rotational movement of the contact to facilitate the wrapping of a wire around the wire receiving end of the contact.
a body of dielectric material having a plurality of passages therethrough;
a plurality of resiliently radially deflectable fingers located in each of said passages, each of said fingers terminating in a free end which defines a shoulder facing towards one end of the passages;
a plurality of radially extending ribs located in each of said passages, each of said ribs integral at one radial end with said body and terminating at one axial end within said passage to define shoulders facing the ends of each of said fingers, said ribs and fingers adapted to captivate the enlarged middle portion of a contact inserted into a passage in the body; and a tubular member that is coaxial with said passage and integral with the other radial end of each of said ribs, said tubular member having a bore that has a configuration that is the same shape as the wire receiving end of the contact and a cross section slightly larger than the cross section of the wire receiving end of the contact whereby, when a contact is inserted into the passage in the body, the walls of said bore prevent rotational movement of the contact to facilitate the wrapping of a wire around the wire receiving end of the contact.
3. The combination as recited in Claim 1 wherein the configuration of the central bore in each ring and the rear portion of each contact includes at least two contiguous flat surfaces.
4. The combination as recited in Claim 2 wherein the configuration of the central bore in each ring and the rear portion of each contact includes at least two contiguous flat surfaces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27914881A | 1981-06-30 | 1981-06-30 | |
| US279,148 | 1981-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1175519A true CA1175519A (en) | 1984-10-02 |
Family
ID=23067832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000404201A Expired CA1175519A (en) | 1981-06-30 | 1982-06-01 | Insert for electrical connector having removable contacts |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0068965B1 (en) |
| JP (1) | JPS5844678A (en) |
| CA (1) | CA1175519A (en) |
| DE (1) | DE3262312D1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2271890A (en) * | 1992-09-17 | 1994-04-27 | Gem Machinery Industry Company | Three-pole electrical plug |
| JP5096515B2 (en) * | 2010-03-26 | 2012-12-12 | ヒロセ電機株式会社 | connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3031639A (en) * | 1960-03-21 | 1962-04-24 | United Carr Fastener Corp | Twist-lock snap-in contact |
| FR2263615A1 (en) * | 1974-03-07 | 1975-10-03 | Radiall Sa | Multiple pin connector with coiled contacts - has pins prevented from rotating by square collars with sprung radial flaps |
| US4187272A (en) * | 1976-10-01 | 1980-02-05 | The Bendix Corporation | Method of making molded electrical connector insert |
-
1982
- 1982-06-01 CA CA000404201A patent/CA1175519A/en not_active Expired
- 1982-06-15 EP EP19820401079 patent/EP0068965B1/en not_active Expired
- 1982-06-15 DE DE8282401079T patent/DE3262312D1/en not_active Expired
- 1982-06-28 JP JP11139582A patent/JPS5844678A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0068965B1 (en) | 1985-02-13 |
| JPS5844678A (en) | 1983-03-15 |
| EP0068965A1 (en) | 1983-01-05 |
| DE3262312D1 (en) | 1985-03-28 |
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