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US 5,857,764 AGranted
Vehicle light bulb
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsHajime Tabata, Toru Hasegawa
Life of this patent
Estimating the term…
Abstract
To prolong the life of a vehicle light bulb by securing the legs of the dipped beam filament by forming a hole in cupped shield, fixing one leg directly to common lead by passing this leg through the hole, and fixing the other leg directly to lead. If the shield vibrates as shown by circled arrows 2 and 2, this vibration is not transmitted to the dipped beam filament. Accordingly, the life of dipped beam filament can be further prolonged.
Claims10
A vehicle light bulb comprising:
- a common lead;
- a dipped beam filament operatively connected to a first lead;
- a main beam filament operatively connected to a second lead;
- a glass bulb for accommodating said common lead, said dipped beam filament and said main beam filament;
- a shield fixed to said common lead at a position adjacent the dipped beam filament;
- and
- one leg of said dipped beam filament being fixed directly to the common lead.
4 more elements
A vehicle light bulb comprising:
- a common lead;
- a dipped beam filament operatively connected to a first lead;
- a main beam filament operatively connected to a second lead;
- a glass bulb for accommodating said common lead, said dipped beam filament and said main beam filament;
- a shield being fixed to said common lead at a position adjacent the dipped beam filament, said shield including a cup part and a tongue part, said tongue part being fixed and extending from said cup part so as to pass generally through a center of the bulb, and said tongue part being fixed to said one leg of the dipped beam filament generally at the center of the glass bulb.
2 more elements
A vehicle light bulb comprising:
- a common lead;
- a dipped beam filament operatively connected to a first lead;
- a main beam filament operatively connected to a second lead;
- a glass bulb for accommodating said common lead, said dipped beam filament and said main beam filament;
- a shield fixed to said common lead at a position adjacent the dipped beam filament;
- said dipped beam filament includes a coil part having a conductor formed in a shape of a coil spring, a first leg extends out in a straight line from one end of the coil part along a line that is tangential to the coils of the coil part, and a second leg extends out in a straight line from the other end of the coil part along a line that is tangential to the coils of this coil part and is perpendicular to the first leg, said first leg is fixed to said shield and the second leg is fixed to the first lead.
3 more elements
A vehicle light bulb comprising:
- a common lead,
- a dipped beam filament operatively connected to a first lead;
- a main beam filament operatively connected to a second led;
- a glass bulb for accommodating said common lead, said dipped beam filament and said main beam filament;
- a shield fixed to said common lead at a position adjacent the dipped beam filament;
- said dipped beam filament includes a coil part having a conductor formed in a shape of a coil spring, a first leg extends out in a straight line from one end of the coil part along a line that is tangential to the coils of the coil part, and a second leg extends out in a straight line from the other end of the coil part along a line that is tangential to the coils of this coil part and is perpendicular to this one leg, and in that the first leg is fixed to said common lead and the second leg is fixed to the first lead.
3 more elements
Dependencies are inferred from the claim text.