Abstract: A power source socket includes a casing fixed to a vehicle. The socket has a contact coupled to a power supply. The contact of the socket is electrically connected to a contact of a plug of an electrical device when the plug is inserted into the casing. The socket has a contact fixed to the casing. The socket also has a movable contact movably accommodated in the casing. The movable contact has a first contact portion and a second contact portion. The first contact portion contacts the fixed contact. The second contact portion contacts the plug contact. The first contact portion also contacts the fixed contact in accordance with the engagement of the plug contact and the second contact portion of the movable contact when the plug is inserted into the casing. The contact portion of the movable contact is separated from the fixed contact in accordance with the movement of the plug contact away from the movable contact when the plug is removed from the casing.

Abstract: A switch operation indicator is disclosed which comprises a frame fitted with a push-type switch having a drive member which is locked into a pressed-in position by a first pressing action and unlocked to return to an original position by the next pressing action; a push button fitted in the panel of the frame so that the button can be pressed in; a coupling bar which couples the button and the drive member to each other and has an operating notched portion; an indication opening provided in the panel adjacently to the button and an indication member attached to the frame so as to be swung, along with the movement of the bar, to be engaged with or disengaged from the notched portion and is provided with an indicating portion which alternatively faces or does not face the opening as the indication member is swung back and forth by the repeated pressing actions. Alternatives include an optical guiding version and a vibration-clamping version.

Abstract: A turn signal indicating mechanism for use in motor vehicles comprising a housing, a movable bracket movable to right, left and neutral positions provided in the housing, an operating lever pivotally coupled to the movable bracket which is pivotable back and forth from a neutral position and a turn signal switch actuated the pivotable operating lever whereby turn signals for a lane change are generated by pivoting the operating lever without moving the movable bracket and turn signal for a left or right turn are generated by pivoting the operating lever until the movable bracket is moved to either the right or left turn position.