Hosiden Electronics Co., Ltd.

Sony Corporation

Tadayoshi Ezure

Shigemi Sekiguchi

Katsutoshi Amano

Yoshinori Yamane

A connector plug includes a plurality of contact pins carried by an insulating body which is installed in a cylindrical metal cover. The cylindrical metal cover has a semi-cylindrical rear portion which is engaged with a semi-cylindrical metal cover piece into a cylindrical form. A separtately molded insulating cap is assembled onto the cylindrical metal cover. Within the insulating cap, a cable clamp member having a thickness greater than that of the cylindrical metal cover is secured to a rear end extension of the cover. A cable connected to the contact pins is clampedly held by the cable clamp member.

Connector plug

A connector plug includes a plurality of contact pins carried by an insulating body which is installed in a cylindrical metal cover. The cylindrical metal cover has a semi-cylindrical rear portion which is engaged with a semi-cylindrical metal cover piece into a cylindrical form. A separately molded insulating cap is assembled onto the cylindrical metal cover. Within the insulating cap, a cable clamp member having a thickness greater than that of the cylindrical metal cover is secured to a rear end extension of the cover. A cable connected to the contact pins is clampedly held by the cable clamp member.

Female contacts are fixedly held in insertion channels formed in a body of a connector socket. A conductive plate is disposed on a front face of the body in contact therewith. In the conductive plate are formed small holes of a diameter slightly greater than that of conductive pins of a plug, in opposing relation to the insertion holes. The conductive plate has an integral grounding terminal. The arrangement is such that, when the plug pins are inserted into the holes of the conductive plate, as the plug pins are being inserted into the female contacts of the socket, any electrostatic charge on the pins is discharged to ground via the conductive plate and grounding terminal rather than being discharged from the pins to the socket contacts.

Connector socket

Locking springs project from a plug body, and support bars are axially movably held against the locking springs. The support bars axially engage a coupling sleeve through engagement members. With the support bars in engagement with the coupling sleeve, the support bars are urged to move in a forward direction under the bias of a coil spring. When a plug is to be coupled to a socket, the support bars are caught by a front surface of a socket body, allowing the locking springs to be inserted into an insertion slot in the socket body. When protrusions on the locking springs are inserted in recesses in the insertion slot, the support bars are urged by the coil spring to be inserted into the insertion slot, and the protrusions axially engage in the recesses, whereupon the plug and the socket are locked together. When the coupling sleeve is pulled back against the bias of the coil spring, the support bars are withdrawn out of the insertion slot to allow the plug to be pulled out of the socket.

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Isesaki, Japan

Tadayoshi Ezure