Electrical connector

• US 4,490,003 A
• Filed: 01/11/1982
• Issued: 12/25/1984
• Est. Priority Date: 01/11/1982
• Status: Expired due to Fees

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Robinson, Earl F.
• Primary Examiner(s): MCQUADE, JOHN P
• Application Number:
  US06/338,358
• Time in Patent Office: 1,079 Days
• Field of Search: 339/17 F, 339/176 MF, 339/75 MP, 339/91 R, 339/101, 339/102 R
• US Class Current: 439/325
• CPC Class Codes: H01R 12/75 connecting to cables except for flat or ribbon cables
• CPC Class Codes: H01R 13/58 Means for relieving strain on wire connection, e.g. cord grip , for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable for flat or ribbon cables H01R12/771
• CPC Class Codes: H01R 13/6275 Latching arms not integral with the housing H01R13/6276, H01R13/6277, H01R13/6278 take precedence
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

An electrical connector for a conductor that is printed on a dielectric strip, such as an electrode lead, comprises an insulating housing having a terminal therein and an opening into the housing for receiving the dielectric strip such that the printed conductor engages the terminal. Opposed jaws are pivotally supported in the housing on opposite sides of the terminal, the jaws being joined at corresponding ends by a resilient member to bias the jaws for releasable engaging notches in the dielectric strip. A novel strain relief member in which the resilient means is embedded may be used to prevent separation of the terminal from a connector lead wire.

Claims

1. An electrical connector comprising an electrically insulated housing having a cavity and an opening providing communication from the cavity to the exterior of the housing, an electrical terminal within said cavity and having a first end presented toward said opening for receiving and contacting an electrical conductor projecting through said opening, a lead wire electrically connected to the second end of said terminal and extending from said housing, and means for releasably retaining said conductor in said housing and in contacting relationship with said terminal;

said means comprising at least one jaw member pivotally mounted on said housing and movable from a conductor-retaining position to a conductor-release position at which the conductor can be inserted into or withdrawn from the housing through said opening to make or break contact with said terminal, and resilient means biasing said jaw member to said conductor-retaining position, said resilient means comprising a U-shaped length of wire one end of which is affixed to said jaw member, and a strain relief member molded over said lead wire with a segment of the return bend portion of the U-shaped wire embedded in said strain relief member for transmittal of strain from the lead wire to said U-shaped wire providing said resilient means.

2. A connector according to claim 1 having a pair of jaws members pivotally mounted on opposite sides respectively of said terminal, said jaw members being joined by said resilient means such that the jaw members and resilient means constitute a structure with both jaw members being biased toward their conductor-retaining positions, said jaw members being of an electrically insulating material.

3. A connector according to claim 2 in which said terminal has sections diverging toward said opening and shaped to receive a sheet of material having said conductor printed thereon, said sheet having notches for receiving the jaw members.

4. A connector according to claim 1 including auxiliary spring means disposed between said jaw member and said strain relief member and operable in aid of said resilient means.

5. An electrical connector comprising an electrically insulated housing having a cavity and an opening providing communication from the cavity to the exterior of the housing, an electrical terminal within said cavity and having a first end presented toward said opening for receiving and contacting an electrical conductor projecting through said opening, and means for releasably retaining said conductor in said housing and in contacting relationship with said terminal;

said means comprising a pair of jaw members pivotally mounted on opposite sides of said housing and movable from a conductor-retaining position to a conductor-release position at which the conductor can be inserted into or withdrawn from the housing through said opening to make or break contact with said terminal, each said jaw member being pivotally mounted intermediate the respective ends thereof to define a gripper portion and an arm portion, said arm portion of each jaw member being depressible to move the jaw member from the conductor-retaining position to the conductor-release position, and resilient means biasing said jaw members to said conductor-retaining position, said resilient means being joined to the arm portion of each jaw member, such that the resilient means and the jaw member define an integral structure, with said resilient means biasing said arm portions outwardly of the housing and correspondingly urging said gripper portions inwardly of the housing to the conductor retaining position, and wherein said resilient means is in the form of a U-shaped link of spring wire having the ends thereof embedded in the gripper portions of the respective jaw members.

6. An electrical connector according to claim 5 wherein said electrical terminal has sections diverging toward said opening and shaped to receive a sheet of dielectric material having said conductor printed thereon, said sheet having notches for receiving the ends of the gripper portion of the jaw members.

7. An electrical connector comprising an electrically insulated housing having a cavity and an opening providing communication from the cavity to the exterior of the housing, an electrical terminal within said cavity and having a first end presented toward said opening for receiving and contacting an electrical conductor projecting through said opening, and means for releasably retaining said conductor in said housing and in contacting relationship with said terminal;

said means comprising a pair of jaw members pivotally mounted on opposite sides of said housing and movable from a conductor-retaining position to a conductor-release position at which the conductor can be inserted into or withdrawn from the housing through said opening to make or break contact with said terminal, each said jaw member being pivotally mounted intermediate the respective ends thereof to define a gripper portion and an arm portion, said arm portion of each jaw member being depressible to move the jaw member from the conductor-retaining position to the conductor-release position, and resilient means biasing said jaw members to said conductor-retaining position, said resilient means being joined to the arm portion of each jaw member, such that the resilient means and the jaw member define an integral structure, with said resilient means biasing said arm portions outwardly of the housing and correspondingly urging said gripper portions inwardly of the housing to the conductor retaining position, and further including a lead wire connected to said electrical terminal, and a strain relief member abutting said housing for resisting separation of the lead wire from said electrical terminal, and said resilient means being embedded in said strain relief member.

8. An electrical connector according to claim 7 wherein said housing is of a two-piece construction, and defines a pair of opposed post members upon which said jaw members are pivotally mounted.

9. An electrical connector according to claim 7 including auxiliary spring means disposed in association with each said jaw member and operable in aid of said resilient means.