JPH0130261B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a socket device in which a discharge lamp socket and a starter socket are arranged adjacent to each other.

Conventional configurations and their problems Conventionally, there are known socket devices in which a discharge lamp socket and a starting parts socket are arranged close to each other for use in straight tube discharge lamp appliances.
It is known to have a discharge lamp socket and a starting parts socket adjacent in the same direction, perpendicular to each other, or opposite to each other.

Incidentally, in recent years, discharge lamps such as U-shaped discharge lamps in which both electrodes of the discharge lamp are arranged in the same direction and terminals connected to the electrodes are provided on one base have come into widespread use. However, the socket for such a discharge lamp did not have a socket device in which a starting component socket was placed nearby. The reason for this is mainly that it is difficult to secure a place for installing the starting parts socket and the starting parts to be attached thereto.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to provide a socket device which can be used primarily for mounting a discharge lamp having a terminal at one base, and in which a starting component socket is disposed nearby, and which further includes a starting component socket. Pay attention to the placement of the socket to prevent accidental release of the starting parts.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a discharge lamp socket into which a discharge lamp is mounted, and a starting part for starting the discharge lamp in the same direction as the discharge lamp socket is mounted near the discharge lamp socket. The starting part is located in the direction of the base of the discharge lamp in the state of being installed in the discharge lamp socket in a state where the starting part is installed in the starting part socket, and the starting part The distance between the starting part and the tip end surface is set within a range from which the starting part does not deviate.

DESCRIPTION OF EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a substantially disk-shaped base made of an insulating material such as synthetic resin, and a discharge lamp socket 2 is provided approximately in the center thereof. The discharge lamp socket 2 has, for example, four mounting holes 3. A starting parts socket 4 is provided near the discharge lamp socket 2 and in the same direction.
Reference numeral 6 denotes an opening for attaching a starting component such as a glow lamp or an electronic starter to the starting component socket 4. Reference numeral 7 denotes a discharge lamp, which houses a U-shaped or double U-shaped bulb (not shown) inside. 8 is a base, and 9 is a terminal that is inserted into the mounting hole 3 of the discharge lamp socket 2 and comes into contact with an internal terminal (not shown). The portion where the terminal 9 is provided has a convex portion 1 having an outer diameter smaller than that in the direction of the base portion 8.
0 is provided, and protrusions 11 are provided on both sides thereof. The base body 1 is provided with a recess 12 into which the protrusion 10 can enter, and on both inner surfaces of the recess 12 there are approximately L-shaped notches 13 into which the projection 11 can enter and be latched.
is provided. To attach the discharge lamp 7 to the base 1, the projection 11 is aligned with the edge of the notch 13 and then pushed in. At this time, the terminal 9 enters the mounting hole 3 of the discharge lamp socket 2 and comes into contact with a terminal (not shown). Then, by slightly rotating the discharge lamp 7,
The protrusion 11 moves along the substantially L-shape of the notch 13 and is latched at the innermost part of the notch 13. In order to prevent the protrusion 11 from returning, it is appropriate to provide a small protrusion (not shown) slightly in front of the innermost part of the notch 13. Such attachment means is a well-known means called the so-called Swan type. When adopting this swan type, it is most suitable to use a type in which the discharge lamp socket 2 itself rotates, and in order to prevent the protrusion 11 from returning, the terminals inside the discharge lamp socket 2 are moved in the direction of the terminals 9, for example, inside the socket. Appropriately, it is biased by a coil spring (not shown). Of course, such means are well known and are not directly related to the disclosure of the present invention, so illustration thereof is omitted. Moreover, of course, the present invention is not limited to the above-mentioned Swan type attachment means. In any case, when the discharge lamp 7 is installed in the discharge lamp socket 2, the starting component 5 installed in the starting component socket 4 is located in the direction of the base 8, and the end surface of the base 8 and the tip surface of the starting component 5 are located in the direction of the base 8. The distance is set within a range in which the starting part 5 does not deviate. According to such a distance setting, deviation of the starting component 5 can be prevented. That is, even if the starting part 5 becomes loose, it will not come off because it comes into contact with the base 8. Although the starting component 5 may easily loosen due to vibration, the loosening stroke is regulated within a range such that electrical contact between the starting component 5 and the starting component socket 4 can be maintained even if the starting component 5 loosens until it comes into contact with the base 8. If it is set so that the starting part 5 is not activated, it not only has the effect of simply preventing the starting part 5 from slipping out, but also has the effect of solving the problem of the starting part 5 not working due to loosening of the starting part 5, and eventually the discharge lamp 7 not starting. It becomes something that can be played. Next, in this embodiment, since the starting component socket 4 is located in the notch 14 in the lateral direction that is continuous with the recess 12, the starting component 5
When attaching and detaching the starting parts socket 4 (of course,
(This will be done with the discharge lamp 7 removed), insert your thumb and index finger into the spaces on both sides of the notch 14,
That is, it is possible to pinch the starting part 5 by positioning it on the outside and in the recess 12, which is very convenient. Further, when the starting part 5 is installed in the starting part socket 4, the starting part 5 does not protrude outside the base body 1, so it does not get in the way and there is little risk of inadvertent damage. Note that the recess 12 and the notch 14 are not essential to the present invention. For example, a case may be considered in which there is no recess 12 and only the notch 14 is present. This is because the recess 12 is provided on the premise that the base of the discharge lamp 7 is configured as shown. Furthermore, the end face of the base 8 of the discharge lamp 7 and the end face of the base body 1 are not close to each other as shown in the figure;
This is because if the configuration is such that they are attached to each other at a considerable distance, there will be enough space for the starter component 5 to be attached to the base body 1 while protruding from the end face of the base body 1 without providing the cutout portion 14. Although this embodiment shows an example in which the discharge lamp socket 2 and the starting parts socket 4 are combined into one base body 1, in view of the gist of the present invention, a configuration in which they are provided separately and independently is also acceptable. That is clear. 15 shown in FIG. 2 is shade, 1
6 is an upper cover, and 17 is a cord.

Effects of the Invention As is clear from the detailed description above, according to the socket device of the present invention, a starting device in which a starting component is mounted in the vicinity of a discharge lamp socket in which a discharge lamp having a terminal at one base is mounted is mainly provided. Since the component sockets can be arranged, it contributes to compactness, and by attaching the discharge lamp, it can have the effect of accurately preventing the starting components from slipping off, making it a new type of discharge lamp. It is expected that this will greatly contribute to the development of instruments.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
FIG. 2 is a side view showing an example of the application to a lighting fixture. 2...Discharge lamp socket, 4...Starting parts socket, 5...Starting parts, 7...Discharge lamp, 8
……base.

Claims (1)

[Claims] 1. A discharge lamp socket into which a discharge lamp is mounted is provided, and a starting parts socket into which a starting part for starting the discharge lamp is mounted is provided in the vicinity thereof in the same direction as the discharge lamp socket, and the starting part is The starting component is located in the direction of the base of the discharge lamp when it is attached to the discharge lamp socket, and the distance between the base end surface and the tip surface of the starting component is within a range from which the starting component does not deviate. A socket device characterized by being set inside.