JPS6333320Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a sealed fluorescent lamp lighting fixture, and particularly relates to an improvement of a contact piece of a socket attached to a lighting fixture body.

(Prior Art) Conventionally, a sealed fluorescent lamp lighting fixture in which a straight tube type fluorescent lamp is installed has a socket main body 2 provided at both ends of a sealed fluorescent lamp lighting fixture 1, as shown in FIG. A translucent cylinder 3 is installed between the main body 2, and a spring 5 is used between the socket main body 2 and the socket cover 4 to engage and support the socket main body 2 so as to move it back and forth slightly. It is equipped with a straight tube fluorescent lamp.

Further, as shown in the figure, the lead wire 6 connected to the socket is configured to pass through the inside of the sealed fluorescent lamp lighting fixture 1, lead to a hollow portion on the back side of the socket body 2, and connect to the socket 5.

However, according to the sealed fluorescent lamp lighting fixture with the same structure, when the pin of the fluorescent lamp is inserted into the socket body 2, the socket body 2 is pressed and at the same time the lead wire 6 is pressed, and the lead wire 6 is inserted into the socket. It has the drawback that it comes into contact with a part of the spring 5 or the spring 5, is pressed, is worn out, and is bent.

In particular, if the socket is small, the lead wire 6 is more likely to be worn out by a portion of the socket or by the spring 4, and the lead wire 6 is more likely to be bent.

Furthermore, when the pin of the fluorescent lamp is inserted into the socket body 2 through the elongated translucent cylinder 3, the entire socket is pressed. may not be able to make good contact with the conductive contact piece of the socket, resulting in poor contact.

In the case of the sealed fluorescent lamp lighting equipment, the lead wire 6 is airtightly supported to prevent outside air from entering the inside of the socket, so in terms of protecting the lead wire 6, the socket main body 2 cannot be moved. However, in order to insert the fluorescent lamp pin and to allow contact between the fluorescent lamp pin and the contact piece of the socket, it is necessary to move the socket body slightly using a spring.

(Purpose of the invention) The present invention has been devised in view of the above points, and even if the socket body supported by the sealed fluorescent lamp body is configured to be small, the lead wire can be connected to a part of the socket or a spring. To provide a sealed fluorescent lamp illuminator which does not wear out or bend, and further allows good contact between a pin of a fluorescent lamp and a conductive contact piece of a socket.

(Means for solving the problems) The present invention will be explained below with reference to FIG. In the figure, reference numeral 11 denotes a sealed fluorescent lamp lighting equipment body, which is constructed with socket holders 12 provided at both ends. 13 is a translucent cylinder supported between the socket holders 12 at both ends via a packing 14; 15 is a tightening bolt for mounting the translucent cylinder 13 between the socket holders 12 at both ends. ring, 16 is a socket cover screwed onto the socket holder 12, 17 is the socket holder 12
A hollow socket body is movably attached to the inside of the socket body 17 with a coil spring 22, and 18 is an elastic contact piece that is fitted and supported in the hollow part of the socket body 17, and has a plurality of bent parts. There is. 1
9 is a contact piece holding plate, and 20 is a lead wire connected to the elastic contact piece 18, which is led out from the back side of the socket body 17. Reference numeral 21 denotes a straight tube-shaped fluorescent lamp mounted inside a translucent cylinder 13.

The other end of the sealed fluorescent lamp lighting fixture (not shown) is constructed in the same manner as described above.

(Operation of the invention) In order to attach a straight tube fluorescent lamp to the socket main body 17 in the above-described sealed fluorescent lamp lighting equipment, one end of the socket cover 16 is opened and the coil spring 22 and the socket main body 17 are inserted into the socket. When the fluorescent lamp 21 is inserted into the translucent cylinder 13 with it removed from the holder 12, the pin of the fluorescent lamp 21 enters the insertion hole of the socket body 17, and the pin of the fluorescent lamp 21 is inserted into the insertion hole of the socket body 17. It contacts the elastic contact piece 18 with a predetermined pressure.

Furthermore, since there is an elastic contact piece 18 when attaching the fluorescent lamp 21 to the socket main body 17, the extent to which the socket main body 12 is pressed by the pin of the fluorescent lamp 21 is small, and the lead wire is abraded by a part of the socket or by the spring. Also, there are fewer twists and turns.

Also, the pin of the fluorescent lamp 21 is connected to the socket body 17.
Since it is pressed by the elastic contact piece 18 inside, the contact is ensured and contact failure does not occur.

(Effects of the invention) As described above, the present invention supports an elastic contact piece having a plurality of bends inserted into the hollow part of the socket body, and leads out the lead wire connected to the elastic contact piece from the back of the socket body. I configured it like this,
Even when a fluorescent lamp pin is inserted into a socket, the socket does not move much due to the spring action of the elastic contact piece, and even if the socket is made smaller, the lead wire will wear out due to part of the socket or the spring.
There is no bending, and since the pin of the fluorescent lamp is pressed by the elastic contact piece inside the socket body, there is an advantage that the pin can be securely contacted and no contact failure will occur.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view of an enclosed fluorescent lamp lighting fixture according to the present invention, and FIG. 2 is a side cross-sectional view of a conventional sealed fluorescent lamp lighting fixture. DESCRIPTION OF SYMBOLS 11... Sealed fluorescent lamp lighting fixture body, 12... Socket holder, 13... Translucent cylinder, 16
...Socket cover, 17...Socket body, 18...
Elastic contact piece.

Claims (1)

[Claims for Utility Model Registration] In a structure in which a socket holder 12 is provided at both ends of a translucent cylinder 13, and a movable socket body 17 is mounted inside the socket holder 12, the movable socket body 17 is formed into a cylindrical shape, and inside the hollow part of the socket body 17,
The elastic contact piece 18 having a plurality of bent parts is inserted and supported, and the elastic contact piece 18 is inserted from the back side of the socket body 17.
A sealed fluorescent lamp lighting fixture characterized in that a lead wire 20 is connected to the lead wire 20.