Light source bulb of lighting device for vehicle
AssigneeIchikoh Industries, Ltd.
InventorsKunio Akizuki, Yasumitsu Nakabayashi
Life of this patent
Estimating the term…
Abstract
A sliding contact is formed by a first terminal 40 fixed to a side of a lamp base flange 2 and a second terminal 41 fixed to a side of a slider 7. Accordingly, it is possible to supply an electric current to a glass tube 9 without bending a harness 3. Therefore, a harness 3 is not deteriorated, and a resistance at a time of sliding the glass tube 9 is not increased.
Claims15
A light source bulb of a lighting device for a motor vehicle, which is mounted to a lamp base portion on the basis of a standard set for the light source bulb for the motor vehicle, comprising:
- a cylindrical lamp base flange attached to the lamp base portion;
- a case integrally or separately formed in a rear portion of the lamp base flange and forming a space sequential to the lamp base flange;
- a slider received within the lamp base flange in a state of being capable of sliding in a longitudinal direction;
- a glass tube fixed to a front portion of the slider;
- and
- a driving portion received within the case and connected to the slider so as to longitudinally slide the slider;
- wherein the glass tube is positioned within a substantially cylindrical fixed shade fixed to the lamp base flange, and wherein a notch portion for allowing a light divergence upward from the glass tube is formed in an upper portion of the fixed shade.
A light source bulb of a lighting device for a motor vehicle structured to longitudinally slide a slider fixing a glass tube within a lamp base portion mounted to an attaching portion on the basis of a standard set for the light source bulb for the motor vehicle, comprising:
- a harness fixed to an inner portion of the lamp base flange;
- a first terminal connected to a core line at a front end of the harness;
- and
- a second terminal being in contact with a part of the first terminal and disposed along a longitudinal direction of a side surface of the slider,
- wherein a conduction between the first terminal and the second terminal is always maintained, and
- wherein the glass tube is positioned within a substantially cylindrical fixed shade fixed to the lamp base flange, and wherein a notch portion for allowing a light divergence upward from the glass tube is formed in an upper portion of the fixed shade.
A light source bulb of a lighting device for a motor vehicle structured such as to longitudinally slide a slider fixing a glass tube within a lamp base portion mounted to an attaching portion on the basis of a standard set for the light source bulb for the motor vehicle, comprising:
- a harness fixed to an inner portion of the lamp base flange;
- a first terminal connected to a core line at a front end of the harness;
- a second terminal being in contact with a part of the first terminal and disposed along a longitudinal direction of a side surface of the slider;
- a case having a space sequential to the lamp base flange integrally or separately formed in a rear portion of the lamp base flange;
- a driving portion connected to the slider and longitudinally sliding the slider received within the case;
- and
- a waterproof cap mounted to a side surface of the lamp base flange,
- wherein a conduction between the first terminal and the second terminal is always maintained,
- wherein the lamp base flange is formed in a cylindrical shape, and
- wherein the lamp base flange, except the front portion to which the waterproof cap is closely attached and a waterproof property is secured, and the case are formed so as to have a waterproof structure.
Dependencies are inferred from the claim text.