Connector block and terminal assembly

• US 4,085,989 A
• Filed: 11/03/1975
• Issued: 04/25/1978
• Est. Priority Date: 11/03/1975
• Status: Expired due to Term

• Current Assignee: Altair International Incorporated
• Original Assignee: Altair Engineering Incorporated
• Inventors: McCardell, Willard B.
• Primary Examiner(s): McGlynn, Joseph H.
• Application Number:
  US05/628,073
• Time in Patent Office: 904 Days
• Field of Search: 339/59, 339/198, 339/217, 339/263
• US Class Current: 439/595
• CPC Class Codes: H01R 4/30 utilising a screw or nut clamping member H01R4/50 takes precedence; utilising a clamping member acted on by screw or nut H01R4/38; for coaxial cables H01R9/0521
• CPC Class Codes: H01R 4/34 Conductive members located under head of screw
• CPC Class Codes: H01R 9/16 Fastening of connecting parts to base or case; Insulating connecting parts from base or case
• CPC Class Codes: H01R 9/24 Terminal blocks

Abstract

A connector block and terminal assembly adapted for connecting hook-up wires of a cord set to the internal wiring of an appliance, such as clothes washer or dryer, includes an insulator block having terminal receiving cavities for insertion of terminals connected to the internal wiring, the cavities opening outwardly of the block at access apertures where screw threaded fasteners connected to the terminals may be removed to permit connection of the hook-up wires and then the screws reapplied and tightened to effect an electrical connection between the wires and terminals. A nut associated with each terminal is retained in substantial registry with a screw receiving aperture in the terminal, while the screw is removed for connection of the hook-up wires, by tang means on the terminal. Locking tang means on the block cooperate with the terminals to retain them in the block. The connector block is configured for slidable mounting on the appliance and a locking tang prevents unintentional removal.

Claims

1. A connector block and terminal assembly comprising:

an insulating housing,

at least one longitudinally extending cavity defined by the housing opening outwardly thereof at one end to form a terminal receiving entrance and opening laterally outwardly thereof spaced from said entrance to form an access aperture with the cavity being closed intermediate said openings,

a terminal slidably received in said cavity and having a wire gripping portion at one end and an apertured hook-up portion therefrom for receiving a screw fastener projected through the apertured hook-up portion,

a nut separable from said terminal received in said cavity and positioned adjacent said lateral access opening on the opposite side of said apertured hook-up portion therefrom for receiving a screw fastener projected through the apertured hook-up portion,

means on said terminal for retaining said nut in the cavity in sufficient registry with the aperture in the hook-up portion independent of any screw fastener to enable screw threaded engagement of a screw fastener projected through the apertured hook-up portion, and

locking tang means on the housing for engaging the terminal to hold it in the cavity.

2. The invention defined by claim 1 characterized in that said cavity includes a nut receiving channel opening outwardly of the housing adjacent said terminal receiving entrance and extending inwardly of the housing and terminating opposite said lateral access aperture and sized to accommodate introduction of a nut at said entrance and slidable movement through the channel to a position opposite said access aperture.

3. The invention defined by claim 1 characterized in that said cavity includes opposed channels and said terminal has marginal edge portions received in said channels for supporting the terminal in the cavity, and said locking tang means on the housing projects into the cavity and is resistingly displaceable in a direction substantially perpendicular to said channels as the terminal is inserted into the cavity.

4. The invention defined by claim 1 characterized in that said terminal is provided with an upstanding portion extending toward a wall of the cavity, and said locking tang means is integral with such wall to engage such upstanding portion to lock the terminal in the cavity.

5. The invention defined by claim 1 characterized in that said cavity has opposed side, and top and bottom walls, said side walls including opposed terminal receiving channel for receiving lateral edges of the terminal received in the cavity and supporting the terminal in the cavity, said top wall of the cavity provided with said tang means and shaped to accommodate the slidable passage of the head of a screw fastener extending through said apertured hook-up portion of the terminal and engaged with said nut, and the bottom wall of the cavity shaped to accommodate the slidable passage of the nut and the shank of a screw fastener extending through the apertured hook-up portion of the terminal and engaged with a nut.

6. The invention defined by claim 1 characterized in that a screw fastener has a shank portion extending through the apertured hook-up portion and threadedly engaged with said nut, and said screw fastener has a head portion overlying the hook-up portion of the terminal and exposed outwardly of the housing through the access aperture, and such head of the screw fastener is configured to cooperate with a torquing tool for torquing the screw fastener.

7. The invention defined by claim 1 characterized in that said housing includes nut supporting means opposite said access aperture for supporting the nut in sufficient proximity to said apertured hook-up portion to permit screw thread engagement with the nut by a screw fastener introduced through the hook-up portion.

8. The invention defined by claim 7 characterized in that said housing includes wall means at the cavity adjacent the access aperture for engaging the nut and preventing rotation thereof during threaded engagement therewith by a screw fastener introduced through said apertured hook-up portion.

9. The invention defined by claim 7 characterized in that said nut supporting means is spaced from said hook-up portion of the terminal a sufficient distance to permit displacement of the nut away from the hook-up portion for introduction of a hook-up conductor therebetween.

10. The invention defined by claim 9 characterized in that said housing includes an aperture opening outwardly of the housing and communicating with the cavity for introduction of a hook-up conductor therethrough and between the nut and hook-up portion of the terminal.

11. A terminal for the purpose described comprising:

a conductive member having a generally planar body portion having lateral side edges for slidable reception and support of the terminal in opposed channels of a connector block,

a wire gripping portion integral with one end of the body,

an aperture extending through the body portion perpendicular thereto for reception of a threaded fastener,

and depending tab means on the body between the aperture and said wire gripping portion for engaging a nut and holding the same in sufficient registry with said aperture while the terminal and nut are disposed in a connector block to enable a screw threaded fastener extending through said aperture to be threadedly engaged with the nut.

12. The invention defined by claim 11 characterized in that said body portion includes an upstanding tab between said aperture and wire gripping portion for engagement with a locking tang in a connector block into which terminal is inserted to retain the terminal in the block.