Spring-loaded terminal assembly

• US 4,410,228 A
• Filed: 07/27/1981
• Issued: 10/18/1983
• Est. Priority Date: 07/27/1981
• Status: Expired due to Term

• Current Assignee: AMP Limited
• Original Assignee: AMP Limited
• Inventors: Stephenson, Brian D.
• Primary Examiner(s): McQuade, John
• Assistant Examiner(s): Austin, Paula
• Application Number:
  US06/286,749
• Time in Patent Office: 813 Days
• Field of Search: 339/95 D, 339/97 R, 339/97 P, 339/98, 339/99 R, 339/254 R, 339/254 M, 339/255 R
• US Class Current: 439/436
• CPC Class Codes: H01R 4/48455 insertion of a wire only possible by pressing on the spring

Abstract

An improved spring-loaded terminal assembly is disclosed of the type in which an insulating housing has a conductor-receiving aperture extending into a cavity defined by the housing and alignable with a corresponding aperture in a terminal mounted in the cavity. Resilient means, which maintains the apertures normally out of axial alignment, must be overcome to align the apertures to permit insertion of a conductor therein. The resilient means then returns the apertures to an unaligned orientation, thereby pinching the conductor between the apertures. Specifically, the improvement consists of integrating the resilient means into the terminal.

Claims

1. A spring-loaded terminal assembly comprising:

a housing of rigid insulative material defining at least one profiled cavity therein, a like number of conductor-receiving apertures each extending through said housing into a respective one of said cavities; and

a terminal in each said cavity, each said terminal being an elongated stamped and formed metal member having

a body portion with a pair of integral transverse flanges and a conductor-receiving aperture extending through said body portion axially alignable with said housing aperture;

a mounting tail extending from one end of said body portion beyond said profiled cavity; and

an integral resilient extension extending from the other end of said body portion and bent out of the plane defined by said body portion, said extension maintaining said housing and terminal apertures in a normally unaligned orientation so that the resilient force of said resilient extension must be overcome to axially align said apertures and allow a conductor to be inserted therein, said resilient extension returning said apertures into said axially unaligned orientation thereby pinching said conductor between said housing aperture and said terminal aperture.

2. A terminal assembly according to claim 1, wherein each said cavity has a transverse extension at one end thereof to form a T-shaped profile oriented so that each said housing aperture extends through said housing and into each said profile cavity at said one end, said transverse extensions forming terminal retaining means to slidably receive said flanges of each said terminal, with said resilient extension of each said terminal extending toward and resiliently bearing on the bottom of each said profiled cavity.

3. A terminal assembly according to claim 2 wherein:

said body portion of each said terminal has a lance extending from the plane defined by said body portion,

each said lance defining a shoulder directed toward said mounting tail; and

said housing has a lance-engaging recess opening therethrough into each said cavity and positioned to receive said lance therein whereby separation of said terminal and said housing is prevented.

4. A terminal assembly according to claim 2 wherein said housing is a four-sided prismoid.

5. A terminal assembly according to claim 2 wherein each said housing aperture is a circular passage tapering toward said one side of a respective one of said cavities to facilitate insertion of said conductor into said housing aperture.