Bulb-type lamp and manufacturing method for the bulb-type lamp
First Claim
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1. A bulb-type lamp comprising:
- a globe having a constricted neck part at one end;
a connector having a ring-shaped groove in which the neck part of the globe can be inserted, wherein the globe is bonded to the connector in a state where the neck part is inserted in the groove;
a holder having a stand that supports an electric ballast; and
a case having an opening, and holding the holder in a state where the holder is inserted in the case through the opening with the electric ballast being inserted first, wherein in the opening of the case, the connector to which the globe is bonded is fixed to one of the case and the holder by a fitting construction.
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Abstract
To provide a bulb-type lamp in which a globe is fixed to a case without a tilt, and a manufacturing method for the bulb-type lamp. The globe is bonded to a connector using a thermosetting resin, in a state where a neck part of the globe is inserted in a groove of the connector without contacting the bottom of the groove. The connector is then fixed to the case by means of a fitting construction. This makes it unnecessary to perform a heating process to cure an adhesive after an envelope is formed by the globe and the case. Hence the tilting of the globe caused by the thermal expansion of air in the envelope can be prevented.
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Citations
12 Claims
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1. A bulb-type lamp comprising:
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a globe having a constricted neck part at one end;
a connector having a ring-shaped groove in which the neck part of the globe can be inserted, wherein the globe is bonded to the connector in a state where the neck part is inserted in the groove;
a holder having a stand that supports an electric ballast; and
a case having an opening, and holding the holder in a state where the holder is inserted in the case through the opening with the electric ballast being inserted first, wherein in the opening of the case, the connector to which the globe is bonded is fixed to one of the case and the holder by a fitting construction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A manufacturing method for a bulb-type lamp, comprising:
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a holding step for holding a holder which has a stand supporting an electric ballast, by a case which has an opening, in a state where the holder is inserted in the case through the opening with the electric ballast being inserted first;
a bonding step for bonding a globe which has a constricted neck part at one end, to a connector which has a ring-shaped groove in which the neck part of the groove can be inserted, in a state where the neck part is inserted in the groove; and
a fixing step for fixing the connector to which the globe is bonded, to one of the case and the holder by a fitting construction, in the opening of the case. - View Dependent Claims (11, 12)
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Specification