Bulb-type lamp and manufacturing method for the bulb-type lamp
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTetsuo Matsuba, Yoshinori Kakuno
Life of this patent
Estimating the term…
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.
Claims17
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.
In a light emitting bulb, the improvement comprising:
- a globe having a light emitting diffusing coated surface;
- a support member for mounting the globe;
- and
- an adhesive for bonding the support member to the globe, the adhesive having a light diffusing characteristic wherein the adhesive coats the light emitting surface of the globe for diffusing the light and also provides the bonding of the globe to the support member.
A method of assembling a light emitting bulb with a light diffusing globe comprising the steps of:
- positioning the globe adjacent a support member;
- coating an interior surface of the globe with an adhesive having a light diffusing characteristic;
- and
- continuing the coating step after the interior surface of the globe is coated to provide sufficient adhesive between the globe and the adjacent support member to bond the globe to the support member with the adhesive.
The method of claim 14 further including drying the adhesive without heating.
A bulb-type lamp assembly formed by modular components, comprising:
- a globe having a transparent body for transmitting light with an opening having a peripheral connector affixed to and extending about the opening, the opening of a size to receive a light emitting member, the globe connector having an exterior surface with a first fastening unit comprising one of a projecting fastener member and a fastener depression;
- a holder supporting a light emitting member;
- and
- a case member having an opening for supporting the holder, the case member having an interior surface with a second fastening unit comprising one of a projecting fastener member and a fastener depression of a configuration to cooperatively secure the first fastening unit of the globe connector to the case member by relatively forcing the globe connector exterior surface into the case member interior surface, with the holder captured between the globe connector and the case member, to enable an automatic fastening by engagement of the respective projecting fastener member with the fastener depression whereby the bulb-type lamp is provided with a fitting construction without additional fasteners.
Dependencies are inferred from the claim text.