JPH02210705A - Lamp holder fitting board - Google Patents

Abstract

PURPOSE:To make faster process speed and improve productivity without rotating a circuit board by forming thereon holes or recesses in about equilateral triangle or hexagon in the same direction with angles of about 120 deg. separated from each other. CONSTITUTION:A metallic circuit board 1 is formed with holes 5 in about equilateral triangle in the same direction with angles of about 120 deg. separated from each other. Each lamp holder 3 is attached to the circuit board 1 with a screw 4 after a base portion of the holder 3 is inserted into each hole 5. Therefore, when the holes 5 are formed on the circuit board 1 in order by a NC puncher, the circuit board 1 does not need to be rotated since the holes 5 are formed in the same direction. Thus, the holes 5 are formed only by transferring the circuit board 1 with X-Y control. Accordingly, process speed is made faster and productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention aims to improve productivity by improving a substrate for mounting a lamp holder for an annular fluorescent lamp.

2. Description of the Related Art Conventionally, as shown in FIG. 3, rectangular holes 2 are formed in the radial direction at intervals of about 1200 on a substrate 1, and a lamp holder 3 for an annular fluorescent lamp (not shown) is attached to the substrate 1 with screws 4, etc. was common. For example, Jikko Sho 54-2886
This is as shown in Publication No. 4.

Problems to be Solved by the Invention In the above-mentioned conventional technology, when forming the holes 2 sequentially using an NC punch, the substrate 1 is moved by x-ymapt, and
Since it is necessary to perform rotations in increments of approximately 120 c', the problem of slow carving speed and low productivity has been solved.

The present invention has the object of increasing the cutting speed without requiring rotation of the substrate and improving productivity.

Means for Solving the Problems The present invention constitutes a lamp holder mounting board characterized in that substantially regular triangular or substantially regular hexagonal holes or concave surfaces are formed in the same direction at approximately 120° intervals on the board.

The hole or concave surface may be formed with a small approximately equilateral triangular portion remaining at each interior corner of the generally equilateral triangular hole or concave surface.

Further, the lamp holder may be installed as appropriate by inserting its base into a hole or concave surface and attaching it to the substrate with screws.

According to the present invention, the holes or concave surfaces formed in the substrate at intervals of about 1200 are approximately equilateral triangular or approximately regular hexagonal, and are formed in the same direction, so there is no need to rotate the substrate. All you have to do is move it using the X-Y @ command.

The hole or concave surface is formed by leaving a small approximately equilateral triangular part at each inner corner of the approximately equilateral triangular hole or concave surface, thereby making it easier to insert the base of the lamp holder into the hole or concave surface. or positioning.

Embodiment An embodiment of the present invention will be described with reference to FIG. 1. In a metal substrate 1, approximately equilateral triangular holes 5 are formed at intervals of about 1200 in the same direction.

It is more appropriate that the hole 5 is formed so that a small approximately equilateral triangular portion 5a (dotted line portion in FIG. 1C) is left at each inner corner of the approximately equilateral triangular hole.

Note that the base of the lamp holder 3 supporting an annular fluorescent lamp (not shown) is inserted into the hole 5, and then the screw 4 is inserted.
Although it is attached to the board 1 by
As in Japanese Patent No. 28864, the lamp holder 3 may be attached to the edge of the hole 5 with a clamping piece provided at the base of the lamp holder 3 without using screws, and the lamp holder 3 and the substrate 1 may be attached in the case shown in the figure. I want to be limited.

According to the above configuration, when the holes 5 are sequentially formed in the substrate 1 by an NC bunch (not shown), since the holes 5 are in the same direction, it is not necessary to rotate the substrate 1, and the holes 5 are moved simply by the X-Y @ control. Since the holes 5 shown in the figure are formed by simply pressing the holes 5, it is clear that the machining speed can be increased and this contributes to improved productivity.

The hole 5 is formed by leaving a small approximately equilateral triangular portion 5a at each inner corner of the approximately equilateral triangular hole, so that the work when inserting the base of the lamp holder 3 into the hole 5 is facilitated. Therefore, the positioning of the base of the lamp holder 3 within the hole 5 is also ensured.

Next, another embodiment of the present invention will be described with reference to FIG. 2. In FIG. 2, FIG. , a substantially equilateral triangular concave surface 6 is formed inside thereof.

In addition, in FIG.
It is formed.

Again, an increase in crabbing speed is possible in these examples as well.

In addition, in these examples, the concave surface 6 is formed by leaving a small approximately equilateral triangular part at each inner corner of the concave surface of a substantially equilateral triangular shape. Positioning becomes reliable.

Furthermore, in all the embodiments, the small substantially equilateral triangular portions (5a) left on the substrate 1 are made slightly thicker than in the case shown in the figure (by doing so, the holes 5 or the concave surfaces 6 become substantially regular hexagonal, and in this case However, the effects of the present invention remain the same.

Effects of the Invention According to the present invention, in order to form a hole or a concave surface for attaching a lamp holder to a substrate, it is not necessary to rotate the substrate, but simply X-Yllllll! Since it is only necessary to move the material using II, the cutting speed can be increased and productivity can be improved.

The hole or concave surface is formed by leaving a small approximately equilateral triangular part at each inner corner of the approximately equilateral triangular hole or concave surface, thereby making it easier to insert the base of the lamp holder into the hole. or secure positioning within a hole or concave surface of the lamp holder base.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, A is a plan view, B is a partial perspective view when the lamp holder is attached, C is an enlarged plan view of the hole, and FIG. 2 is a plan view of another embodiment of the present invention. A and B are partial perspective views of the lamp holder when it is attached. FIG. 3 shows a conventional example, in which A is a plan view and B is a partial perspective view when the lamp holder is attached. l... Board, 3... Lamp holder,
4... Screw, 5... Hole, 5a...
...Small, almost equilateral triangular part, 6...Concave surface. Name of agent: Patent attorney Shigetaka Awano Ren Katsuo

Claims (3)

[Claims] (1) A lamp holder mounting board characterized in that substantially equilateral triangular or substantially regular hexagonal holes or concave surfaces are formed in the same direction at approximately 120° intervals on the substrate. (2) The lamp holder mounting board according to claim 1, wherein the hole or concave surface is formed in a substantially equilateral triangular shape, leaving a small substantially equilateral triangular portion at each inner corner of the hole or concave surface. (3) The lamp holder mounting board according to claim 1 or 2, wherein the base of the lamp holder is inserted into a hole or a concave surface and attached to the board with screws.