JP3511307B2 - Socket mounting structure for fluorescent lamp - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a socket for mounting and electrically connecting a fluorescent tube to a case for housing the fluorescent tube.

[0002]

2. Description of the Related Art A conventional fluorescent lamp socket mounting structure is shown in FIG. The L-shaped attachment piece 12 is attached to the inner surface of the case 11 at one half thereof, and the socket 13 is attached to the attachment piece 12. The projection 14 protruding from the back surface of the socket 13 is inserted and engaged with the hole 15 of the mounting piece 12, and the screw 17 is screwed into the screw hole 18 formed on the back surface of the socket 13 through the hole 16 formed in the mounting piece 12. The socket 13 is fixed to the mounting piece 12. A pair of small holes are formed in the electrode holding portion 19 on the front surface of the socket 13, electrodes 21 are attached to the inner surfaces of these small holes, and pin terminals of the fluorescent tube 22 are inserted into the electrodes 21 to electrically connect them. And mechanically held. At this time, the electrode holding portion 19 can be inserted into and removed from the main body of the socket 13 in order to ensure the connection and to insert and remove, and is elastically biased to the outside. Also, the mounting piece 12
Is formed of a metal plate and is elastically deformed so that the distance between the sockets on both sides of the fluorescent tube 22 can be increased in the longitudinal direction of the fluorescent tube 22. The arrangement direction of the protrusion 14 and the screw 17 is substantially perpendicular to the inner surface of the case 11 to which the attachment piece 12 is attached, and the protrusion 14 is located closer to the inner surface than the screw 17. With this configuration, the protrusion 1
The attitude of the socket 13 is determined by the screw 4 and the screw 17, and the arrangement direction of the pair of electrodes 21 is substantially parallel to the inner surface of the case.

[0003]

Conventionally, since the socket 13 is mounted on the mounting piece 12 by the screw 17, the mounting work is troublesome, and the working space for screwing is different from that of the socket 13 of the mounting piece 12. It is necessary on the opposite side. For example, when the distance between the side plate 11a of the case 11 and the mounting piece 12 is small as shown by the dotted line, the screw 17 cannot be screwed to the socket 13.

Further, in the socket 13, the arrangement direction of the projections 14 and the screw holes 18 is longer than the arrangement direction of the pair of electrodes 21, so that the case 11 becomes deep, that is, deep. In order to reduce this depth, the electrodes 21 are mounted so that the arrangement direction thereof is substantially perpendicular to the inner surface of the mounting of the case 11, and when the mounting piece 12 is displaced and the socket is taken out as described above, the electrode holding portion 19 is provided. May tilt with respect to the socket body, one of the pair of electrodes 21 may protrude from the socket body more than the other, and the fluorescent tubes may not be detachable. The arrangement direction of such electrodes 21 is perpendicular to the mounting inner surface. It cannot be a mounting structure,
The depth of the case 11 was large.

[0005]

According to the present invention, a mounting surface is provided on a case into which a fluorescent tube is mounted,
A pressing piece facing this is attached to the mounting surface in a cantilever manner, and a socket is interposed between the pressing piece and the mounting surface.At that time, the pressing piece is circumscribed on the electrode holding part of the socket and elastically. Contacted. Further, the projection protruding from the back surface of the socket is inserted and engaged with the hole formed on the mounting surface, and the small projection protruding from the mounting surface is inserted and engaged with the hole formed on the back surface of the socket.

Further, on the side opposite to the fixing portion of the pressing piece with respect to the socket, the engaging piece is projected from the mounting surface,
The engagement piece is engaged with the edge portion of the socket on the lead wire lead-out portion side.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. In this embodiment, the case 11 is the fluorescent tube 2
This is a case where a component mounting portion 25 for mounting various electronic components such as a switch and a lamp is provided at the same time as a portion for housing 2. Mounting surfaces 26 and 27 are provided in the case 11. In this example, a mounting surface 26 is erected integrally with the case 11 perpendicular to the open surface of the case 11 between the fluorescent lamp housing portion and the component mounting portion 25, and the side plate of the case 11 faces the mounting surface 26. Part of the mounting surface 2
This is the case when it is set to 7. The socket 13 is attached to each of the opposing surfaces of the attachment surfaces 26 and 27, and the fluorescent tube 22 is attached between them. Since the structure for mounting the socket 13 on the mounting surfaces 26 and 27 is the same, the structure for mounting the socket 13 on the mounting surface 27 will be described below.

As shown in FIGS. 3 and 4, a holding piece 28 parallel to the attaching surface 27 is cantilevered and attached. That is, a pressing piece 28 is provided which rises vertically to the mounting surface 27, is bent at a right angle, and is parallel to the mounting surface 27. In this example, the pressing piece 28 is extended in parallel with the open surface 29 of the case 11. The free end portion of the pressing piece 28 is a narrow portion 28a whose width is narrowed from both sides.
The narrow portion 28a is thinned by scraping the mounting surface 27 side. The pressing piece 28 is formed as an integral molded product of, for example, a resin material together with the case 11, and the free end portion of the pressing piece 28 can be elastically deformed to approach the mounting surface 27 side. .

The socket 13 is interposed between the pressing piece 28 and the mounting surface 27. At that time, the electrode holding portion 19 of the socket 13 is brought into contact with the pressing piece 28 or is elastically pressed. As a result, the socket 13 itself is held on the mounting surface 27. The projection 14 integrally protruding from the back surface of the socket 13 is inserted and engaged with the hole 31 formed in the mounting surface 27 to be substantially positioned, and the small projection 32 integrally projected from the mounting surface 27 is the socket 13. A hole formed in the back surface of the device, which is a screw hole 18 in this example, is inserted and engaged and positioned. As a result, the socket 13 is mounted on the mounting surface 27 in a predetermined posture. At this time, the narrow portion 28a of the pressing piece 28 is in contact with the electrode holding portion 19 in the substantially middle portion of the pair of electrodes 21 on the electrode holding portion 19, and the terminal pin of the fluorescent tube 22 is inserted into the electrode 21. Will be able to do. The fixed end of the presser piece 28, the small protrusion 32, and the protrusion 14 are substantially aligned with each other.
And they are arranged in that order on this side.

Further, in this embodiment, with respect to the socket 13, the engaging piece 33 is projected from the mounting surface 27 on the side opposite to the fixed end of the pressing piece 28, and the engaging piece 33 is attached to the socket 13.
The socket 13 is securely held on the mounting surface 27 so that the socket 13 is engaged with the lead wire lead-out side edge portion 34 and the socket 13 does not come out.
In this case, a small claw is formed at the end edge of the engagement piece 33, and the front surface of the lead wire lead-out side edge portion 34 is pressed by the small claw.

To attach the fluorescent tube 22 to the pair of sockets 13, the terminal pin side of the fluorescent tube is inserted into the electrode 21 of one of the sockets, and the pressing piece 28 is pressed against the mounting surface side to be elastic. The electrode holding portion 19 may be sufficiently retracted into the socket body, and the other terminal pin may be inserted into the electrode 21 of the other socket and released from the fluorescent tube 22. Similarly, when pulling out the fluorescent tube 22, push the fluorescent tube 22 toward one mounting surface side and press the pressing piece 2
8 may be elastically deformed and the terminal pin of the fluorescent tube may be pulled out from the other socket.

Although the longitudinal direction of the pressing piece 28 is parallel to the open surface 29 of the case 11 in the above description, it is not always necessary to do so and it may be vertical.

[0013]

As described above, according to the present invention, the socket 13 is held by being sandwiched by the cantilevering press piece 28 on the mounting surface, and the socket 1 is attached from the free end side of the press piece 28.
3 is inserted into the fixed end side of the pressing piece 28, the small protrusion 32 is engaged with the screw hole 18, and the protrusion 14 is inserted into the hole 31.
It suffices if it is engaged inside, and the mounting work is very easy. When the engaging piece 33 is provided, the mounting of the socket becomes more reliable. When the engaging piece 33 is not provided, the socket can be inserted not from the free end side of the pressing piece but from the lateral side. In this way, there is no screwing operation, workability is good, and there is no space on the side opposite to the socket 13 of the mounting surface, that is, there is a component mounting portion as in this example, and it cannot be screwed because of the mounting component. Even in such a case, the socket can be attached.

When the pressing piece 28 is extended in a direction substantially parallel to the case opening surface 29 as in this embodiment,
The electrode arrangement of the electrode holding portion of the socket is substantially perpendicular to the case opening surface 29, that is, the longitudinal direction of the socket 13 is parallel to the case opening surface 29, and accordingly, only the case 1
It is possible to make the depth of 1, that is, the depth shorter than the conventional one. Moreover, since the attachment plate is not biased as in the conventional case when removing the fluorescent tube, there is no state in which one side of the electrode holding portion extends and retracts, and the removal operation can be performed reliably.

As in the above embodiment, the small protrusion 32 is located closer to the fixed end side of the pressing piece 28 than the hole 31, and the small protrusion 32 is located.
Is smaller than the protrusion 14, so that the socket 1
It is possible to facilitate the insertion and engagement of 3 with the pressing piece 28 in the mounting surface.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an enlarged sectional view of a main part of the present invention.

5A is a cross-sectional view showing a part of a conventional fluorescent lamp socket mounting structure, and FIG. 5B is a front view of the socket.

Claims (3)

(57) [Claims] 1. A mounting surface is provided on a case into which a fluorescent tube is mounted , and a free end portion is elastically deformed to mount the fluorescent tube.
The pressing piece that comes close to the contact surface is attached to the above-mentioned mounting surface in a cantilever manner so that it can be freely taken in and out and elastically biased to the outside.
The socket having a holding part is provided with the pressing piece and the mounting surface.
Is interposed between the electrode holding part and the pressing piece.
The pin protruding from the back surface of the socket is inserted and engaged with the hole formed on the mounting surface, and the small projection protruding from the mounting surface is inserted and engaged with the hole on the back surface of the socket. Fluorescent lamp socket mounting structure. 2. An engagement piece projects from the attachment surface on the side opposite to the attachment surface fixing portion of the pressing piece with respect to the socket, and the engagement piece engages with a lead wire lead-out edge portion of the socket. The socket mounting structure for a fluorescent lamp according to claim 1, wherein: 3. The fluorescent lamp according to claim 1, wherein the mounting surface is substantially perpendicular to the open surface of the case, and the extension direction of the pressing piece is substantially parallel to the open surface. Socket mounting structure.