US 2005/0231963 A1 · Lamp holder for lamp with a single base and lighting apparatus using the same

Abstract

A lamp with a single base is mounted on a lamp holder by processes of contacting a second mounting face of the base with a first mounting face of the lamp holder and turning the base in a first turning direction with respect to the lamp holder. A plurality of engaging projections is formed on the lamp holder with which a plurality of engaging protrusions of the base is engaged, when the base is turned in a first turning direction. A pair of hooking receivers is formed on a mounting face of the lamp holder so as to be hooked with a hooking protrusion of the base. A pair of lamp holding springs is provided on the lamp holder for applying forces for restricting turning of the base in a second turning direction opposite to the first turning direction under a condition that the second hooking portion of the base is hooked with the first hooking portion. Thus, safety and reliability of mounting of the lamp on the lamp holder can be increased.

Claims18

Dependent claims

A lamp holder for a lamp with a single base, on which the base of the lamp is mounted by processes of contacting a second mounting face of the base with a first mounting face of the lamp holder and turning the base in a first turning direction with respect to the lamp holder, comprising:

a plurality of first engaging portions with which a plurality of second engaging portions of the base is engaged so as not to be dismounted in a direction perpendicular to the first and second mounting faces, when the base is turned in the first turning direction;
at least a first hooking portion with which at least a second hooking portion of the base is detachably hooked when the base is turned at a predetermined angle in the first turning direction;
and
at least a lamp holding spring for applying a force for restricting turning of the base in a second turning direction opposite to the first turning direction under a condition that the second hooking portion of the base is hooked with the first hooking portion.

1 more element

A lighting apparatus configured by at least a lamp holder and a lamp with a single base mounted on the lamp holder, wherein

the lamp holder comprising a first mounting face, a plurality of first engaging portions, at least a first hooking portion, and at least a lamp holding spring;
the base of the lamp comprising a second mounting face, a plurality of second engaging portions engaged with the first engaging portions of the lamp holder when the base is turned in a first turning direction, and at least a second hooking portion detachably hooked with the first hooking portion of the lamp holder so as not to be dismounted in a direction perpendicular to the first and second mounting faces when base is turned at a predetermined angle in the first turning direction;
and
the lamp holding spring applies a force for restricting turning of the base in a second turning direction opposite to the first turning direction under a condition that the second hooking portion of the base is hooked with the first hooking portion.

1 more element

Dependencies are inferred from the claim text.

Lamp holder for lamp with a single base and lighting apparatus using the same

Life of this patent

Lamp holder for lamp with a single base and lighting apparatus using the same

Life of this patent

Abstract

Claims18