JPH05258817A - Socket for discharge tube - Google Patents

Abstract

PURPOSE:To enable the positional adjustment of a discharge tube to be made, even if light emission has directivity or an appliance has molding dispersion, by inserting the tube in a socket, causing the tube to nutate and rotate right and left along a nutation section, and setting the tube at a normal position with a positioning section. CONSTITUTION:Sockets 1 and 2 are constituted of a body 10 and contact pieces 14 and 15. These contact pieces 14 and 15 are provided with positioning sections 14a and 15a for setting a discharge tube at a normal position, and leads 16 and 17 are respectively connected to the contact pieces 14 and 15. The body 10 is made of melamine phenol or the like. Also, a hole for inserting the base of the discharge tube is formed through the surface of the body 10, while a circular arc V-groove 10b as a nutation section is formed on the reverse side of the body 10. In this case, the contact pieces 14 and 15 are formed with elastic phosphor bronze, and made to hold the discharge tube. A side plate 8 is provided with a clearance hole used for setting the discharge tube, and an adjustment hole used for adjusting the position of the discharge tube.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge tube socket for mounting a discharge tube such as a hot cathode fluorescent lamp used in OA equipment or the like.

[0002]

2. Description of the Related Art A conventional discharge tube socket is shown in FIG. 8 (Toshiba lilac, S16 base socket). This discharge tube socket is an FL socket in which electrodes (S16 bases) are provided on the circumferences of both ends of a discharge tube (hereinafter referred to as FL) 7, and the electrode portion is partly formed on the main body 3
It is installed in the shape of 0. Also, the installation of the discharge tube socket (hereinafter simply referred to as the socket)
The protrusion 30a is positioned and screwed. In the figure,
30 is a main body, 31 is a contact piece, 32 is a lead wire, and 33 is a screw hole. )

[0003]

However, in the above-mentioned conventional discharge tube socket, there are variations in the positions of the electrodes because the electrodes (bases) at both ends of the FL are attached in a twisted state. Since the adjusting means for correcting the variation in the position of the member for mounting the socket is not provided, it is difficult to position the socket at the regular position with a certain degree of accuracy. Even if only one side of the socket is properly installed, the other side may become unstable (no click).

Further, since a mechanism for adjusting the light emitting direction of the FL is not provided, when the FL is oriented in the proper direction, the socket and the FL are put in the normal state (when both sockets have a click state. There is a problem that it is difficult to do) and it takes time. Further, from the viewpoint of miniaturization of FL-mounted equipment, it has been desired to improve the shape of the socket in order to miniaturize the length in the FL longitudinal direction. Therefore, the present invention solves the above-mentioned conventional problems, and the sockets at both ends of the FL and the FL can be easily set to the normal state, and the FL can be easily set.
The light emission direction of can be easily adjusted and set,
Another object of the present invention is to provide a discharge tube socket in which the FL and the socket are downsized in the longitudinal direction.

[0005]

DISCLOSURE OF THE INVENTION The gist of the present invention is to fit and support a discharge tube having input electrodes on the caps at both ends at both ends. In a discharge tube socket having a contact piece having a positioning portion for supplying more current and positioning the discharge tube at a regular position, when the discharge tube is positioned, the discharge tube is rotated and slid in the circumferential direction. This is because each of the two side plates is formed with an arcuate sliding portion for causing the discharge tube to have an adjusting hole having a size within a range in which the light emitting direction of the discharge tube can be adjusted.

[0006]

Therefore, when the discharge tube (FL) is inserted into the socket and slid to the left and right along the sliding portion and rotated, the positioning section sets the discharge tube at the proper position. And since the adjustment hole of the side plate is large, even after the discharge tube is set to the regular position by the positioning part, the light emission of the discharge tube has directivity, and the discharge tube or the socket has When there is variation, the discharge tube and the socket are integrated (the position of the discharge tube can be adjusted by rotating the discharge tube while keeping the discharge tube at the regular position).

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, bases 7a and 7b at both ends of FL (in this embodiment, a fluorescent lamp is used as an example of a discharge tube) 7 are attached to sockets 1 and 2, and these sockets 1 and 2 are flat head screws 3 And 4 and nut members 5 and 6
Are attached to the side plates 8 and 9.

As shown in FIG. 2 and subsequent figures, this socket 1 (and 2) is composed of a main body 10 and contact pieces 14 and 15 for setting the FL 7 in a proper position on the contact pieces 14 and 15. Positioning portions 14a and 15a are provided, and lead wires 16 and 17 are connected.
The main body 10 is made of plastic, such as melamine phenol, and has a through hole 10a on the front side through which the cap 7a of the FL 7 passes, as shown in FIG.
However, as shown in FIG. 4, arcuate V-shaped grooves 10b, which are sliding parts, are respectively provided on the back side, and a flat head screw hole for the flat head screws 3 and 4 to pass through on the front side and the back side. 12 and 13 are provided. Then, the contact pieces 14 and 15
Is made of an elastic material, for example, phosphor bronze, as shown in FIG. 5, and the base 7a of the FL 7 is set (fitted).
In this state, the current is supplied to the FL and the FL is mechanically held.

As shown in FIG. 6 (a cross-sectional view of the state in which the FL is set when viewed from the direction A in FIG. 1), the side plate 8 is provided with an escape hole 8a used when setting the FL7 and a dish. Adjustment holes 8b and 8c are provided to adjust the position when the screws 3a and 3b are penetrated. Reference numeral 5 is a retaining plate that functions as a nut, as described above. On the other hand, although the side plate 9 is also the same, the adjustment holes 9b and 9c (not shown) are smaller than the adjustment holes 8b and 8c, and are slightly larger than the size which allows the flat head screws 4a and 4b to be just penetrated. The reason why these adjustment holes 9a and 9b are not nuts is that
This is because the adjustment range of only the side plate 8 may be insufficient.

As shown in FIG. 7, the FL 7 has electrodes 7a ₁ , 7a ₂ , 7b ₁ and 7b ₂ on both ends of the bases 7a and 7b.
b, and as shown in FIG.
It is desirable that the straight line connecting a ₁ and 7a ₂ and the straight line connecting the electrodes 7b ₁ and 7b ₂ on the opposite side are parallel to each other.
These straight lines form an angle of about ± 3 ° due to the twisting of the tube of 7 and the mounting variation of the electrodes. Further, the arrangement of the sockets 1 and 2 in the FL7 longitudinal direction will be described. The side plates 8 and 9 are the ends 1 of each of the sockets 1 and 2.
It is arranged so that a and 2a are on the same plane as the both ends 7c and 7d of the FL 7 or on the inside thereof. With this arrangement, both ends 7c and 7c of the FL 7 are
An exterior cover or the like can be provided so as to face (contact) d. In the above structure, first, the socket 2 is fixed to the side plate 9 with flat head screws 4a and 4b, while the socket 1 is temporarily fixed with flat head screws 3a and 3b. Then, the FL7 is set in the sockets 1 and 2, and with the flat head screws 3a and 3b loosened, when the socket 1 is rotated left and right around the center of the FL7, the electrodes 7a ₁ and 7a _{2 of the} FL 7 come into contact with each other. It is fitted into the positioning portions 14a and 15a of the pieces 14 and 15, so that the FL 7 is set to the regular position. At this time, since it is a click feeling, the rotation of the FL 7 is stopped and the flat head screws 3a and 3b are tightened and fixed. As described above, when the FL7 is rotated with respect to the sockets 1 and 2, the FL7 can be rotated by sliding on the semicircular portion of the bottom portion of the V-shaped groove 106, so that the FL7 is supported by the FL7. Can be rotated in a stable manner. At this time, the center of the semicircular portion at the bottom of the V-shaped groove 10b is FL7.
Positioning part 1 of the contact pieces 14 and 15 which is the center of
It is the center of the line segment connecting 4a and 15a.

Next, the case where the FL 7 has an aperture and the light emission is directional will be described. First, leave the flat head screws 3a, 3b, 4a, 4b in a loosened state, and
Insert L7 into sockets 1 and 2, rotate it to the left and right, and set it at the position where there is a click. And
Align FL7 with the direction of light emission. That is, FL not shown
When an operation such as aligning the aperture edge portion of 7 with the position of the mark is performed, the sockets 1 and 2 are not fixed and therefore rotate with the FL 7. At this time, sockets 1 and 2 are F
It rotates about the center of L7 as the center of rotation. With this alignment completed, the flat head screws 3a, 3b, 4a, 4b are tightened to fix the sockets 1 and 2. When adjusting the light emitting directions in this way, the adjustment holes 9a and 9b (not shown) provided in the side plate 9 are smaller than the adjustment holes 8a and 8b, but need to have a size sufficient to satisfy the adjustment range. There is.

[0012]

As described above, since the arcuate sliding portion is provided on the socket and is attached to the side plate having the adjusting hole for adjusting the position, the electrodes at both ends of the discharge tube are twisted with each other, or Even if there is variation in the position of the member to which is attached, the socket can be rotated around the center of the discharge tube and fixed in the correct position, so that the discharge tube can be set electrically and mechanically in a stable state. Can be done. In addition, even if the light emission of the discharge tube has directivity, the socket can be fixed after the light emission direction is determined by rotating integrally with the discharge tube and the socket while maintaining the normal positional relationship. The light emission direction of the discharge tube can be adjusted, and the discharge tube can be stably set in the socket. Further, since the through hole for the discharge tube is provided in the socket, the length of the discharge tube in the longitudinal direction can be slightly shortened, and the outer cover and the like can be provided so as to face both ends of the FL. , FL, the device can be downsized.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an arrangement of a discharge tube socket according to an embodiment of the present invention.

FIG. 2 is a top view of a discharge tube socket showing an embodiment of the present invention.

FIG. 3 is a side view showing a discharge tube socket showing an embodiment of the present invention.

4 is a cross-sectional view as seen from the direction of arrow A in FIG.

5 is a cross-sectional view showing a VV cross section of FIG.

6 is a sectional view showing a section d of FIG. 1. FIG.

7A and 7B are explanatory views showing a discharge tube (FL).

8 (a), (b) and (c) are three views showing a conventional discharge tube socket.

[Explanation of symbols]

 1, 2 Discharge tube socket 3, 4 Flat head screw 7 Discharge tube (FL) 7a, 7b Base part 8, 9 Side plate 8b, 8c, 9b, 9c Adjustment hole 10a Through hole

Claims (3)

[Claims] 1. A discharge tube having input electrodes provided on both end caps, which is fitted and supported at both ends, and a current is supplied from the input electrodes to bring the discharge tube to a proper position. In a discharge tube socket having a contact piece having a positioning portion for positioning, an arc-shaped sliding portion for rotating and sliding in the circumferential direction of the discharge tube is formed when the discharge tube is positioned. And a socket for a discharge tube, each of which is screwed to two side plates each having an adjusting hole having a size in a range capable of adjusting a light emitting direction of the discharge tube. 2. A discharge tube socket provided with through holes through which both ends of the discharge tube penetrate, wherein the side plate has both ends of the discharge tube socket flush with both end surfaces of the discharge tube. Alternatively, the discharge tube socket according to claim 1, wherein the socket is arranged so as to be located inside both end surfaces of the discharge tube. 3. The discharge tube socket according to claim 1, wherein the center of the arc of the arc-shaped sliding portion coincides with the center of rotation of the discharge tube.