US2288918A

US2288918A - Wiring connector socket

Info

Publication number: US2288918A
Application number: US384837A
Authority: US
Inventors: Leslie O Parker
Original assignee: Motors Liquidation Co
Current assignee: Motors Liquidation Co
Priority date: 1941-03-24
Filing date: 1941-03-24
Publication date: 1942-07-07
Anticipated expiration: 1959-07-07

Description

y 1942- L. o. PARKER' 2,288,918

WIRE CONNECTQR socxm Filed March 24,1941

11V VEN TOR Zea/6 opal-w, WW? 55.4.

C ATTORNEYS Patented July 7, 1942 UNITED STATE WIRING CONNECTOR SOCKET Leslie 0. Parker, Anderson, Ind'., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application March 24, 1941, Serial No. 384,837

1 Claim.

electrical connectors and more particularly to the type of electrical connector for use on automotive vehicles.

It is an objectof the invention to provide an electrical connector of simple and inexpensive (Cl. This invention relates to the manufacture of The bared portion 24 of the wire is attached to the connector 2| also by the means of solder construction which may 'be manufactured at low cost. 7 Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawing wherein a preferred embodiment of the present invention is clearly shown.

In the drawing:

Fig. 1 is aperspective view of a strip of material in the process of progressive formation for providing the metallic part of an electrical connector disclosed in the present invention.

Fig. 21s a perspective view of a wire having attached thereto one of the connectors severed from the strip of material shown in Fig. l.

Fig. 3 is a perspective view of a wire attached to a plug adapted to be received by the connector shown in Fig. .2. v v

Fig. 4 is a perspective view showing an insulating tube enclosing the connector attached to the wire shown in Fig. 2. V I

Fig. 5 is a perspective view of the wire and insulating tube after the tube has been deformed by the action of heat and pressure soas to become permanently attached to the connector and wire.

Fig. 6 is drawn to a larger scale than the preceding figures, shows a longitudinal sectional view-of the insulating tube, metal connector and indicated at 26. Also the connector 2l 'is providedwith resilient ears 21 which are spaced apart a distance less than the diameter of the portion 28 of connector plug 30 attached to wire 3| as shown in Fig. 3. The spacing of ears 21 is greater than the diameter of the tip end 29.

When the plug 30 is pressed into the connector socket 2|, the ears 2'! spread apart to allow spherical bosses 32 on the interior sides of the ears to ride over the surface 28 into plug 30 and to allow these bosses 32 to be received by the annular groove 33 of the plug 30. In this way, the withdrawal of theplug 30 from the socket 2I- is yieldably resisted since the withdrawalv of the plug from the socket requires that the ears 2! must spread apart a distance such that the bosses 21 may ride over the large portion 28 of the plug 30. v

In order to prevent contact between the connected plug and socket with a metallic part such as the automobile frameand thus to prevent a short circuit, the socket 2| is enclosed by tube 40 formed preferably of. thermo-plastic material and having a length suificient to enclose both the socket and the plug. The tube is of such cross sectional contour and has such dimension that it will clear the resilient ears 21 and thus not interfere with the spreading thereof when I the plug is pushed into the socket. While the wire, all of these parts being permanently at- 'tached to each other.-

Fig. 1 shows a strip of metal 20 which has been sheared and bent progressively to form conof severing the section :1 from remaining portions of the strip 2|. The machine for performing these operations is similar to the machine describe and'claimed in Patent No. 2,169,802 granted to General Motors Corporation by C. J. Keller.

tube 40 is located in the proper position relative to the socket 2|, the portion of the tube 40 immediately adjacent the bared wire portion 24, the

tangs

22 and 23 and the insulation 25 is deformed by the application of heat and pressure to cause a portion of the material and the tube to envelop the

tangs

22, 23 and the insulation 25 in order to permanently attach the tube 40 to the wire and connector socket as shown in Fig. 6.

I have, therefore, provided for the economical manufacture of a connector socket and for'the attachment thereto of an insulated wire. The socket member is a one piece construction fabricated from a strip of sheet metal, and is attached of this tube to the application of each pressure causes its wall to, be deformed and squeezed around the connector socket and insulated part of-the wire. An eflicient and durable connector 2 I socket has, therefore, been provided at very low cost.

While the embodiment oi the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claim which follows:

What is claimed is as follows:

The method of making a connector and cable I assembly which comprises forming a connector,

attaching it to the insulated and bared portion of the cable, placing a tube of non-conducting thermo-plastlc material around the connector and cable, said tube having such internal dimensions as to provide clearance for the connector, a portion orthe tubersuri'qu i s the connector and extending beyond the free end thereot and a portion or the tube extending' of the cable and the parts of the connector directly attached to the cable while that part of the tube surrounding the portion of the connector which extends from the cable remains in the original shape.

LESLIE .PARKER." m, l