A connector device is configured such that a first connector part and a second connector part are detachable. The first connector part has a first electrode part that is electrically connected to a first electrode part constituting a counterpart electrode part, said first electrode part being an elongate electrode part that extends longitudinally around a first center axis line that extends in the direction of attachment/detachment of the first connector part and the second connector part and that passes through the attachment/detachment center.

A connector device is configured such that a first connector part and a second connector part are detachable. The first connector part has a first electrode part that is electrically connected to a first electrode part constituting a counterpart electrode part, said first electrode part being an elongate electrode part that extends longitudinally around a first center axis line that extends in the direction of attachment/detachment of the first connector part and the second connector part and that passes through the attachment/detachment center.

An electric connector connectable to a mating electric connector includes and inner part, an outer part and a self-locking mechanism. The inner part is adapted to be connected to an electrical conductor. The outer part is adapted to connect to the mating electric connector. The inner and outer parts are connected coaxially and rotatably to one another. The self-locking mechanism selectively blocks rotation of one of the inner or outer parts with respect to the other one of the inner or outer parts in a first circumferential direction, and permits rotation of one of the inner or outer parts with respect to the other one of the inner or outer parts in a second circumferential direction opposite the first circumferential direction.

A connector including a first connector side having a first rotatable connector mechanism and a second connector side having a second rotatable connector mechanism, the first rotatable connector mechanism and the second rotatable connector mechanism being configured to engage one another when the first connector side and the second connector side abut one another at a first angular orientation, the first rotatable connector mechanism and the second rotatable connector mechanism being configured to disengage from one another when the first connector side and the second connector side are rotated away from the first angular orientation in at least a first direction.

An operating member (11) is displaceable to an assembled position, an initial position and a connection position with respect to a housing (10). The operating member (11) is rotated from the assembled position to the initial position with support shafts (18) inserted into end portions (41) of long grooves (39) serving as a center of rotation and includes a rotating mechanism configured to increase a laterally projecting amount of the housing (10) as the operating member moves from the assembled position toward the initial position and a sliding mechanism configured to move the operating member in a direction to reduce the laterally projecting amount from the initial position to the connection position while the support shafts (18) are displaced relative to the long grooves (39) and proceed with a connecting operation of the both housings (10, 12) by cam engagement with a mating housing (12) during a movement.

An operating member (11) is displaceable to an assembled position, an initial position and a connection position with respect to a housing (10). The operating member (11) is rotated from the assembled position to the initial position with support shafts (18) inserted into end portions (41) of long grooves (39) serving as a center of rotation and includes a rotating mechanism configured to increase a laterally projecting amount of the housing (10) as the operating member moves from the assembled position toward the initial position and a sliding mechanism configured to move the operating member in a direction to reduce the laterally projecting amount from the initial position to the connection position while the support shafts (18) are displaced relative to the long grooves (39) and proceed with a connecting operation of the both housings (10, 12) by cam engagement with a mating housing (12) during a movement.

A moving direction of an operating member (11) from an initial position toward a connection position with respect to a housing (10) is selectable from directions along a first movement path and a second movement path opposite to each other. The housing (10) includes a first lock portion (25) and a second lock portion (26) at positions line-symmetrical with respect to a center of a length along the moving direction of the operating member (11). The first and second lock portions (25, 26) lock and hold the operating member (11) selected to move along the first movement path respectively at the initial position and the connection position and lock and hold the operating member (11) selected to move along the second movement path respectively at the connection position and the initial position.

A moving direction of an operating member (11) from an initial position toward a connection position with respect to a housing (10) is selectable from directions along a first movement path and a second movement path opposite to each other. The housing (10) includes a first lock portion (25) and a second lock portion (26) at positions line-symmetrical with respect to a center of a length along the moving direction of the operating member (11). The first and second lock portions (25, 26) lock and hold the operating member (11) selected to move along the first movement path respectively at the initial position and the connection position and lock and hold the operating member (11) selected to move along the second movement path respectively at the connection position and the initial position.

A plug includes a housing, a rotating mechanism, and a pair of pins. The rotating mechanism has a holding member, and a rotating member. The holding member is secured in the housing, and has an elastic arcuate portion having a plurality of recesses. The rotating member is rotatable relative to the holding member, and has a projection mating with each of the recesses of the arcuate portion of the holding member. The pair of pins are secured to the rotating member. The projection of the rotating member is movable along the arcuate portion of the holding member and presses the arcuate portion such that the arcuate portion is elastically deformed until the projection engages one of the recesses of the arcuate portion. When the projection engages one of the recesses, the rotating member and the pair of pins are held in a specific orientation.

A plug includes a housing, a rotating mechanism, and a pair of pins. The rotating mechanism has a holding member, and a rotating member. The holding member is secured in the housing, and has an elastic arcuate portion having a plurality of recesses. The rotating member is rotatable relative to the holding member, and has a projection mating with each of the recesses of the arcuate portion of the holding member. The pair of pins are secured to the rotating member. The projection of the rotating member is movable along the arcuate portion of the holding member and presses the arcuate portion such that the arcuate portion is elastically deformed until the projection engages one of the recesses of the arcuate portion. When the projection engages one of the recesses, the rotating member and the pair of pins are held in a specific orientation.