초록 ▼

A replaceable lamp bulb assembly comprises a reflector and a plug body in which a lamp bulb is secured and which is detachably mounted to the reflector. The plug body has a flange movable inside the inner circumferential surface of a socket formed on the back of the reflector. The flange has one end

A replaceable lamp bulb assembly comprises a reflector and a plug body in which a lamp bulb is secured and which is detachably mounted to the reflector. The plug body has a flange movable inside the inner circumferential surface of a socket formed on the back of the reflector. The flange has one end face thereof that is to be in contact with the outer circumferential edge of the opening formed in the apex of the reflector, and the other end face that is to be in contact with one surface of the wedge-shaped portion of the cleat. The other surface of the cleat, namely, the slanted surface thereof, is so formed as to act as wedge on the guide surface of guide member. When the plug body is fully inserted in the socket, the cleat is inserted from a direction substantially perpendicular to axial direction while the other surface of the flange is axially pressed by the wedge-shaped portions of the cleat, whereby the plug body is retained to the reflector.

대표청구항 ▼

A lamp bulb assembly, comprising: a reflector having an apex and an opening in the apex; a socket taking a substantially cylindrical form and which has an opening extending outwardly from the back of said socket and opened outwardly; a plug body so formed as to be inserted into said socket from the

A lamp bulb assembly, comprising: a reflector having an apex and an opening in the apex; a socket taking a substantially cylindrical form and which has an opening extending outwardly from the back of said socket and opened outwardly; a plug body so formed as to be inserted into said socket from the axial direction and in which a lamp bulb as light source is secured, said plug body having formed on the outer circumferential surface thereof a flange which can be axially moved while in contact with the inner surface of said socket, said flange being in contact, at one end face thereof, with the outer circumferential edge of the opening in said reflector while the other end face is positioned outside the opening in said socket, when said plug body is fully inserted in said socket; a cleat having wedge-shaped portions of which one surface is substantially parallel to the other end face of said flange and the other surface is slanted with respect to said first surface; guide members formed on the back of said reflector to position said wedge-shaped portions outside the opening in said socket and which have guide surfaces provided correspondingly to said other surface of said wedge-shaped portions; said cleat being inserted from a direction substantially perpendicular to said axial direction between said other surface of said flange and guide surfaces of said guide members, when said plug body is fully inserted in said socket, so that owing to the wedging action of said other surfaces of said wedge-shaped portions onto said guide surfaces of said guide members, said flange is axially pressed.