US3451117A - Electrical connector tool - Google Patents

Electrical connector tool Download PDF

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Publication number
US3451117A
US3451117A US589550A US3451117DA US3451117A US 3451117 A US3451117 A US 3451117A US 589550 A US589550 A US 589550A US 3451117D A US3451117D A US 3451117DA US 3451117 A US3451117 A US 3451117A
Authority
US
United States
Prior art keywords
tool
probe
socket
slot
contact
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 - Lifetime
Application number
US589550A
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English (en)
Inventor
John K Cameron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Corp
Allied Corp
Original Assignee
Amphenol Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amphenol Corp filed Critical Amphenol Corp
Application granted granted Critical
Publication of US3451117A publication Critical patent/US3451117A/en
Assigned to ALLIED CORPORATION A CORP. OF NY reassignment ALLIED CORPORATION A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BUNKER RAMO CORPORATION A CORP. OF DE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/22—Hand tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53274—Means to disassemble electrical device
    • Y10T29/53283—Means comprising hand-manipulatable implement

Definitions

  • 29-203 Claims ABSTRACT OF THE DISCLOSURE
  • a contact removal tool for electrical connectors having a tubular plastic probe with a tangential slot to permit the tube walls to overlap as the probe is inserted in a restricted aperture and to thereafter resiliently expand to properly release an internal contact retention clip.
  • the present invention relates to an electrical connector tool.
  • the tool of the invention is for removing contacts from an electrical connector in which the contacts are held by resilient retainer clips in apertures only slightly larger than the contacts themselves.
  • these are often used in closed entry apertures in the connector in which the outer terminal ends of the pins are adjacent the entry ends of the apertures and have larger base portions inwardly from the outer ends.
  • the tool for use in removing the contacts must be contracted for insertion into the entry ends of the apertures and again enlarged after insertion into the apertures, for surrounding the larger portion of the pins.
  • the removal tools heretofore used for this purpose have not been entirely satisfactory.
  • a broad object of the present invention is to provide a novel tool for removal of the contacts from an electrical connector in circumstances as set out above.
  • a more specific object is to provide a tool of the foregoing general character having a tubular removal probe for direct association with the contact and engagement with the retainer clips, which is provided with a novel tangential slot for enabling contraction of the probe for entry into the constricted portion of the aperture, and enlargement thereof to slip over the relatively large portion of the contacts and release the retainer clip.
  • a still more specific object is to provide a tool of the foregoing general character which is of plastic material and consequently of semi-rigid characteristics, having the desired axial rigidity but contractable circumferentially, and having a certain degree of yieldability so as to prevent injury to any of the elements of the connector.
  • FIGURE 1 is an axial sectional view of the tool of the present invention
  • FIGURE 2 is a perspective view of the removal probe portion of the tube
  • FIGURE 3 is a sectional view taken at line 3-3 of FIGURE 1;
  • FIGURE 6 is a sectional view taken at line 66 of FIGURE 5;
  • FIGURE 7 is a view similar to FIGURE 5 but with the tool in a different position relative to the connector part;
  • FIGURES 1, 2 and 3 showing the tool itself of the invention.
  • the tool indicated in its entirety at 12 is generally tubular in shape and includes a central large or main portion 14, a contact insertion probe portion 16 which does not enter into the present invention, and a contact removal probe 18 which constitutes a principal feature of the invention.
  • Forwardly of the main portion 14 is a reduced tubular portion 20 forwardly of which is a tapered section 22, and forwardly of the latter is a final section 24 constituting the probe proper.
  • This section 24 is preferably of cylindrical shape and has a substantially thinner wall than the other portions.
  • a slot 26 opening through the chamfered end surface 27 and extending tangentially of the inner diameter.
  • This slot leads axially inwardly from the outer end to a cutout portion 28 which serves to substantially reduce the total amount of material at that portion to enable greater flexing effect.
  • the cutout portion 28 extends the greater portion of the probe portion and is of substantially greater circumferential extent than the slot, forming a tab or lip 30 defining one side of the slot, while the other edge of the slot may lead directly into the corresponding edge of the cutout portion.
  • Ejection means indicated in its entirety at 32 may be provided if desired, although this feature does not enter into the present invention.
  • Such means may include a plunger 34 within the tool secured to a knob 36 generally exterior of the tool and having connection with the plunger through a slot 38.
  • the plunger is biased to a retracted position (FIGURE 1) by a compression spring 40 and upon moving the knob 36 forwardly (to the left, FIGURE 1) the plunger is slid through the tool and out the end for ejecting a contact from the interior of the tool.
  • the tool 12 is made of plastic material, preferably polypropylene, which provides the desired rigidity longitudinally or axially of the tool, but provides also the desired flexibility for contraction in circumferential direction as will be referred to again, in the removal of the contacts from the connector. Also the material of the tool itself possesses a certain degree of yieldability as compared to metal, thus eliminating injury to any of the elements of the connector in the removal of the contacts.
  • FIGURES 4 and 5 A connector of the type with which the tool is particularly useful is shown in FIGURES 4 and 5. It includes two main parts, namely a receptacle 42 and a plug 44 releaseably connected together by means of a coupling ring 46. The details of this coupling means are disclosed and claimed in the copending application of John Cameron Ser. No. 580,744 filed Sept. 20, 1966, now abandoned, assigned to the assignee of the present invention.
  • the receptacle 42 includes a hard dielectric insert 48 having a plurality of apertures 50 receiving pin contacts 52, each of which has a pin element 54 at its outer end, inwardly of which is a tapered surface 55 merging with a large diameter base element 56 defining an inwardly directed shoulder 58.
  • the pin contact is releaseably held in the aperture by means of a snap-in contact retention clip 60 which itself is releaseably held in the aperture by engagement with an internal rib or bead 62 in the surface of the aperture and has fingers 64 with shoulders or end surfaces 66 engaging the shoulder 58, and terminal elements 68 extending axially beyond that shoulder and overlying the base element 56, these extensions having inclined camming surfaces 70 utilized for releasing the pin contact from the clip as described hereinbelow.
  • the clip and hard dielectric insert are disclosed and claimed in the copending application of Joseph F. Chirumbulo 3 Ser. No. 581,903 filed Sept. 26, 1966 assigned to the assignee of the present invention.
  • the socket element 80 has an outer diameter preferably substantially the same as the diameter of the base element 56 of the pin contact and has a socket 82 receiving the pin element 54 and dimensioned for friction and rubbing contact engagement therewith for establishing electrical contact engagement between the pin contact and socket contact.
  • the socket element 80 has a shoulder 84 engaged by a contact retention clip 86 of the same construction as the clip 64.
  • a socket insert face seal 88 is provided, preferably bonded to the insert 74 and engaging the other insert 48 when the connector is connected.
  • the two parts 42, 44 are fitted together and the socket elements 80 of the plug enter into the apertures 50 of the receptacle a substantial extent, the chamfers 73 aiding in the insertion. Also the outer end of the socket element 80 and the end of the pin element 54 may be chamfered for this purpose, as illustrated.
  • the tool 12 is utilized as indicated in FIGURES 5 to 8.
  • the closed entry of the socket 50 is pre-dimensioned to as small a diameter as possible for purposes of maintaining proper alignment between the pin 54 and the socket element 80.
  • the tangential direction of the slot enables the probe to wrap up, or contract, so that the edges of the slot overlap in entering through the closed entry of the aperture, the slot 26 closing but the outer periphery of the probe remaining substantially circular in shape.
  • FIGURE 8 where the slot 26 is substantially larger than its normal dimension shown in FIGURE 3.
  • the chamfered edge 27 of the tool enters under the inclined surface 70 of the finger elements 68 and spreads the fingers so that the shoulders 66 ride out beyond the shoulder 58, enabling the pin contact to be removed.
  • the cutout portion 28 provides a wide range of contraction and expansion of the probe, and particularly the outer terminal end portion thereof. This portion, including the tab 30 must both contract in the closed entry end of the socket and expand on moving onto the large diameter element 56.
  • the provision of the cutout portion 28 enhances this action, resulting in less body of the probe and correspondingly less rigidity or resistance, so that the end portion can easily contract in entering into the socket and later expand over the base element 56.
  • the probe is preferably dimensioned so as to directly engage or hug the base element 56 to assure minimum dimension of the probe when on that element, and to assure that the chamfered surface 27 enters under the inclined surfaces 70 of the ifinger elements 68.
  • the plastic material of which the tool is made possesses the necessary rigidity in longitudinal or axial direction necessary for spreading the finger elements of the clip but it also provides the desired flexibility in circumferential direction to enable and facilitate the contraction and expansion in circumferential direction of the probe portion of the tool. This contraction and expansion is accomplished without any injury to any of the elements of the connector, and additionally the inherent yieldability of the plastic material of the tool eliminates injury upon engagement with various elements of the connector and thus overcomes a serious disadvantage of tools of other types heretofore known.
  • the socket contact 78 may be removed in a manner similar to that described above. In connection with removing the socket contact, however the probe need not be contracted in entering into the aperture 76 because the latter is not of closed entry type and is of a diameter substantially larger than the outer diameter of the socket element 80.
  • the seal 88 not being compressed, reassumes an expanded position in which the aperture therein is sufliciently large to readily admit the probe of the tool.
  • the clip is released in the manner described above, enabling removal of the socket contact 78.
  • a tool of the character disclosed comprising a body including a tubular end removal probe having a tangential slot therein opening through the end surface thereof enabling overlapping of the tube walls upon inward circumferential flexing of the probe and corresponding increase and decrease in its effective diameter.
  • the probe element includes a chamfered terminal end portion extending entirely circumferentially except for said slot, and is provided with a cutout portion of substantial circumferential extent inwardly from the outer end of the probe element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Leads Or Probes (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US589550A 1966-10-26 1966-10-26 Electrical connector tool Expired - Lifetime US3451117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58955066A 1966-10-26 1966-10-26

Publications (1)

Publication Number Publication Date
US3451117A true US3451117A (en) 1969-06-24

Family

ID=24358476

Family Applications (1)

Application Number Title Priority Date Filing Date
US589550A Expired - Lifetime US3451117A (en) 1966-10-26 1966-10-26 Electrical connector tool

Country Status (5)

Country Link
US (1) US3451117A (de)
DE (1) DE1603699A1 (de)
FR (1) FR1555672A (de)
GB (1) GB1181884A (de)
SE (1) SE349432B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541661A (en) * 1968-03-06 1970-11-24 Pyle National Co Contact extraction tool
US3955414A (en) * 1975-02-18 1976-05-11 International Telephone And Telegraph Corporation Contact insertion apparatus
US4667400A (en) * 1983-04-30 1987-05-26 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for exchanging an hermetically sealed connector on a glove box
US4912841A (en) * 1988-10-06 1990-04-03 Burndy Corporation Dense wire bundle extracting tool
US5040289A (en) * 1989-09-29 1991-08-20 Amp Incorporated Extraction tool
US6725534B1 (en) * 1999-12-03 2004-04-27 Seagate Technology Llc Extraction tool with stepped interface between extraction segments and trasverse load
US20060270256A1 (en) * 2005-05-24 2006-11-30 Hon Hai Precision Ind. Co., Ltd. Contact extraction tool
CN109149319A (zh) * 2018-08-15 2019-01-04 贵州航天电器股份有限公司 一种接触件的装入工具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450511A1 (fr) * 1979-03-01 1980-09-26 Air Lb Gmbh Dispositif de verrouillage et de deverrouillage d'embouts de conducteurs electriques, en particulier pour liaison avec des connecteurs electriques
CN109454676A (zh) * 2018-12-20 2019-03-12 上海久隆电力（集团）有限公司 一种用于模块化线缆切削机床的线缆夹持机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110093A (en) * 1961-12-22 1963-11-12 Cannon Electric Co Contact extraction and insertion tool
US3170230A (en) * 1963-07-11 1965-02-23 Pyle National Co Tool for removing contacts from connectors
US3210832A (en) * 1964-04-24 1965-10-12 George H Kalen Insertion-removal tool
US3222766A (en) * 1963-07-01 1965-12-14 Union Aircraft Co Terminal pin removing tool
US3325884A (en) * 1964-05-06 1967-06-20 Int Standard Electric Corp Tool for assembling and disassembling an electrical connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110093A (en) * 1961-12-22 1963-11-12 Cannon Electric Co Contact extraction and insertion tool
US3222766A (en) * 1963-07-01 1965-12-14 Union Aircraft Co Terminal pin removing tool
US3170230A (en) * 1963-07-11 1965-02-23 Pyle National Co Tool for removing contacts from connectors
US3210832A (en) * 1964-04-24 1965-10-12 George H Kalen Insertion-removal tool
US3325884A (en) * 1964-05-06 1967-06-20 Int Standard Electric Corp Tool for assembling and disassembling an electrical connector

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541661A (en) * 1968-03-06 1970-11-24 Pyle National Co Contact extraction tool
US3955414A (en) * 1975-02-18 1976-05-11 International Telephone And Telegraph Corporation Contact insertion apparatus
US4667400A (en) * 1983-04-30 1987-05-26 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for exchanging an hermetically sealed connector on a glove box
US4912841A (en) * 1988-10-06 1990-04-03 Burndy Corporation Dense wire bundle extracting tool
US5040289A (en) * 1989-09-29 1991-08-20 Amp Incorporated Extraction tool
US6725534B1 (en) * 1999-12-03 2004-04-27 Seagate Technology Llc Extraction tool with stepped interface between extraction segments and trasverse load
US20060270256A1 (en) * 2005-05-24 2006-11-30 Hon Hai Precision Ind. Co., Ltd. Contact extraction tool
US7698810B2 (en) * 2005-05-24 2010-04-20 Hon Hahi Precision Ind. Co., Ltd. Connector removal system
CN109149319A (zh) * 2018-08-15 2019-01-04 贵州航天电器股份有限公司 一种接触件的装入工具

Also Published As

Publication number Publication date
GB1181884A (en) 1970-02-18
FR1555672A (de) 1969-01-31
SE349432B (de) 1972-09-25
DE1603699A1 (de) 1971-04-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLIED CORPORATION COLUMBIA ROAD AND PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BUNKER RAMO CORPORATION A CORP. OF DE;REEL/FRAME:004149/0365

Effective date: 19820922