JPH0631604Y2 - Indicator light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an indicator light including a light source and a transparent outer tube surrounding the light source, and more particularly to a light source and a structure for mounting the light source. .

[Prior Art] For example, an indicator lamp is used in order to notify a process abnormality, a lack of parts, or the like in connection with a manufacturing line in a factory. Indicator lights typically include a light source and a transparent envelope surrounding it. Appropriate coloring is often applied to the outer cylinder. Further, as the light source, one that gives continuous light or one that gives blinking light is used.

Further, in the above-described indicator lamp, there is a so-called laminated indicator lamp in which a structure including a light source and an outer cylinder is unitized and an appropriate number of such units can be stacked and handled as a unit. . In this case, a plurality of types of units that emit light of different colors are used, for example, by changing the color applied to the transparent outer cylinder, and these units provide the desired types of colors in a desired order. Are arranged as follows. Such a stack type indicator light is used to distinguish and transmit a plurality of information.

[Problems to be Solved by the Invention] As described above, when an indicator light is used in connection with a manufacturing line, vibration is often given to the indicator light.
Such vibrations cause bulb burnout when, for example, an incandescent light bulb is used as the light source. When the bulb burns out in this way, it is not only necessary to replace the incandescent lamp relatively frequently, but also when the bulb burns out without knowing it, it causes a disadvantage that desired information cannot be transmitted. .

Further, in the case of the laminated type indicator light, it is desirable that the unit reassembling work is as simple as possible.

Therefore, it is an object of the present invention to provide an indicator lamp that does not cause bulb burnout and that allows a plurality of units to be recombined more easily.

[Means for Solving the Problems] The present invention is directed to an indicator light including a plurality of units each including a light source and a transparent outer cylinder surrounding the light source, and achieves the above-described object. ,
It is characterized by having the following configuration.

That is, this invention is characterized in that a light emitting diode is used as the light source. In each unit, in order to hold such a light emitting diode in a transparent outer cylinder, inside the outer cylinder, a support body formed by combining two wiring boards so as to have a cross-shaped cross section is provided. It is arranged with the line of intersection aligned with the axis of the outer cylinder. The above-mentioned light emitting diode is attached to each overhanging portion of such a support. Then, a female connector for electrical connection is attached to each one end of the supporting body when viewed in the axial direction of the outer cylinder, and each of the other ends of the supporting body when viewed in the axial direction of the outer cylinder. A male connector connected to a female connector provided in a unit adjacent to the unit is attached to the end portion.

[Operation] According to the present invention, since the light emitting diode serving as a light source is attached to each projecting portion of the support having a cross-shaped cross section, a plurality of light emitting diodes should be evenly arranged along the surrounding outer cylinder. You can

Further, when stacking the units, by connecting the female connector and the male connector to each other, it becomes possible to supply power to the light emitting diode included in the unit, and mechanical coupling between the supports included in the unit can be achieved. To be achieved. Further, if the female connector and the male connector are separated from each other, the supports included in different units can be separated from each other.

[Effect of the Invention] As described above, according to the present invention, since the light emitting diode is used as the light source, there is no fear of the bulb running out like an incandescent light bulb, and a maintenance-free indicator light can be provided.

Further, the supporting body on which the light emitting diode is mounted is composed of a wiring board. Therefore, the support can have not only the function of holding the light emitting diode but also the function of providing the electrical wiring necessary for the light emitting diode. Therefore, the support body contributes to effective use of the space in the outer cylinder. Further, a space suitable for positioning the light emitting diode is formed between the adjacent ones of the overhanging portions provided on the support having a cross-shaped cross section. For these reasons, according to the present invention, the limited space inside the outer cylinder is effectively used,
The support and the light emitting diode can be arranged.

Further, since the light emitting diodes are attached to the respective overhanging portions of the support, the light emitting diodes can be evenly distributed along the outer cylinder. Further, the light emitting diode can be located near the outer cylinder by being attached to each of the projecting portions of the support body. Therefore, it is possible to efficiently emit the light from the light emitting diode, which has a light amount lower than that of the incandescent light bulb, to the outside.

Further, the female connector and the male connector for electrical connection attached to each support body are removed and inserted to separate or connect the support body included in a unit and the support bodies included in adjacent units. be able to. Therefore, it is possible to easily change the units and increase or decrease.

[Embodiment] An embodiment of the present invention is shown in the drawings. Of these drawings, FIG. 2 shows the appearance of the indicator lamp 1 in a front view.

With reference to FIG. 2, the indicator lamp 1 includes a base portion 2 when viewed from the outside, and, for example, three transparent outer cylinders 3a, 3b, 3c are stacked from the base portion 2, and further, the uppermost portion. The canopy 4 is arranged on the outer cylinder 3c.

FIG. 1 shows the internal structure of the indicator lamp 1. First
As shown in the figure, the base portion 2 and the outer cylinders 3a, 3b, 3
The c and the canopy 4 are mechanically integrated by sequentially screwing into adjacent ones. That is, the male screw 5 is formed on the upper end of the base portion 2, and the female screw 6a, 6 is formed on the lower end of each of the outer cylinders 3a, 3b, 3c.
b, 6c are formed, similarly, male screws 7a, 7b, 7c are formed at the upper ends of the respective members, and a female screw 8 is formed at the lower end of the canopy 4.

The indicator light 1 includes three units 9a, 9b, 9c,
These have a structure in which they are stacked in order from the top of the base 2. The above-mentioned outer cylinders 3a, 3b, 3c respectively constitute a part of the units 9a, 9b, 9c. The outer cylinder 3a of each of the units 9a, 9b, 9c,
Supports 10a, 10b, 10c are provided inside 3b, 3c.
Are placed. The structures of the supports 10a, 10b, 10c are substantially the same as each other. Therefore, the detailed configuration of the support 10c will be representatively described with reference to FIGS. 3 to 6.

The support 10c has a structure as shown in FIG. 3 when it is in a single state. The support body 10c includes two wiring boards 11c and 12c. The wiring boards 11c and 12c are shown in FIG. 4 in a state of being separated from each other. The wiring board 11c has a notch 13 extending downward from the upper end thereof. The other wiring board 12c is provided with a notch 14 extending upward from the lower end thereof. The width of the notch 13 is equal to the width of the wiring board 12.
The thickness of the notch 14 is selected to be substantially equal to the thickness of the wiring board 11c. When the wiring board 12c is about to be connected to the wiring board 11c as shown by an arrow 15 in FIG.
As shown at 6, it is rotated 90 degrees. As a result, part of the wiring board 12c is received in the cut 13, and part of the wiring board 11c is received in the cut 14. In this way, as shown in FIGS. 3 and 6, the wiring boards 11c and 12c are combined so as to form a cross shape in cross section, thereby forming the support body 10c.

A female connector 17c for electrical connection is attached to the lower end of the wiring board 11c. Further, a male connector 18c paired with the female connector 17c is attached to the upper end of the wiring board 12c. The female connector 17c and the male connector 1
The respective mounting positions of 8c and 8c may be reversed.
The term "female connector" and "male connector" are used here because the "female connector" is selected so as to receive the "male connector" in a mechanically fitted state. In the physically connected state, on the contrary, the terminal on the “female connector” side may be received by the terminal on the “male connector” side. In this embodiment, as shown in FIG. 3, the male connector 18c has terminals (not shown) provided on the female connector 17c side.
Holes 19 are formed to receive the male connector 18c.
It is adapted to be received by a side terminal (not shown).

Four projecting portions 20 are formed on a support body 10c which is formed by combining two wiring boards 11c and 12c so as to have a cross-shaped cross section. As shown in FIGS. 1 and 5, each of these projecting portions 20 has two through holes 22 for mounting the light emitting diode 21.
Three groups are provided each. These through holes 22
Each of the light emitting diodes 21 is attached to the overhanging portion 20 by soldering with the terminal (not shown) of the light emitting diode 21 inserted thereinto. When soldering the light emitting diode 21 as described above, if the edge 23 of the overhanging portion 20 and the peripheral surface of the light emitting diode 21 are partially aligned as shown in FIG. It becomes easy to always attach the light emitting diode 21 to an appropriate position with high workability.

Although not shown, the wiring boards 11c and 12c are
Appropriate wiring pattern is formed, by which,
An electrical connection is achieved between the female connector 17c, each light emitting diode 21, and the male connector 18c.

The structure provided in the support body 10c is the same as the other support bodies 10a, 10a.
It is also provided in b. Therefore, in FIGS. 1 and 5, elements corresponding to the wiring boards 11c and 12c provided on the support 10c and the female connector 17c and the male connector 18c are replaced with "a" or "b" instead of "c". , And the duplicate description is omitted.

Next, a method of assembling the indicator lamp 1 including the three units 9a, 9b and 9c will be described mainly with reference to FIG.

A substrate 24 is fixed to the base portion 2. On the board 24, the male connectors 18a, 18b, 18 described above are provided.
A male connector 18 having a structure substantially similar to that of c is attached. The female connector 17a of the support body 10a is connected to such a male connector 18. As a result, the male connector 18 and the female connector 17a are attached to the power supply device (not shown) incorporated in the base portion 2.
Via the light emitting diode 21 and the male connector 18a
Are electrically connected to each other, and the support 10 a is mechanically coupled to the base portion 2. The joining aid 25 may be used to reinforce such a mechanically joined state. The joining aid 25 is also used in the joining portions of the supports 10a and 10b and the supports 10b and 10c. The coupling assisting portion 25 includes a flange portion 26, and a mounting hole 27 is provided therein, as particularly shown in FIGS. 5 and 6. The coupling assisting tool 25 used at the lower end of the support body 10a has the mounting hole 2
It is fixed to the substrate 24 by a bolt 28 passing through 7.
The coupling aid 25 has a shape surrounding each of the supports 10a, 10b, 10c, as shown in FIG. 6 in plan view. Then, when the outer cylinder 3a is screwed into the base portion 2, the assembly of the unit 9a is completed. At this time, the support body 10a is in a state where the line of intersection thereof coincides with the axis of the outer cylinder 3a.

Next, after the coupling assistant 25 is placed on the upper end of the support 10a, the female connector 17b of the support 10b is connected to the male connector 18a. Next, the outer cylinder 3b becomes the outer cylinder 3a.
When assembled into the unit 9b, the assembling of the unit 9b is completed. At this time, the support body 10b has the intersection line of the outer cylinder 3
The axes of b are aligned.

Next, after the coupling assisting tool 25 is arranged on the upper end portion of the support body 10b, the female connector 17c of the support body 10c is connected to the male connector 18b. Next, when the outer cylinder 3c is screwed into the outer cylinder 3b, the assembly in the unit 9c is completed. At this time, the support body 10c has the intersection line of the outer cylinder 3c.
It is aligned with the axis line of.

Between the units 9a and 9b described above, and the unit 9
coupling aid 25 used between b and 9c respectively
Not only reinforces the mechanical coupling state between the adjacent members of the supports 10a, 10b, 10c, but also the presence of the flange portion 26 of the supports 10a, 10b, 10c prevents the light from the light emitting diode 21 provided in each of the units 9a, 9b, 9c. Also functions to prevent leaks to adjacent units.

As described above, after the assembly in the unit 9c is completed, the pressing member 29 is arranged so as to receive the upper end portion of the support body 10c. The pressing member 29 is in a state in which it cannot rotate with respect to the support 10c. An elastic body 30 made of rubber, for example, is attached to the center of the pressing member 29.

Next, the canopy 4 is screwed into the outer cylinder 3c. This completes all the assembling of the indicator light 1.

As described above, when the canopy 4 is screwed into the outer cylinder 3c,
The elastic body 30 exerts an elastic force on the lower surface of the canopy 4.
Therefore, the canopy 4 is in a state in which it cannot easily rotate with respect to the pressing member 29 and further with respect to the supports 10a, 10b, 10c. As a result, the outer cylinders 3a, 3b,
Rotation of 3c is prevented, and therefore outer cylinders 3a, 3b, 3c are prevented from loosening due to, for example, vibration.

In the indicator lamp 1 described above, the light emitting diode 21 is
For example, the units 9a, 9
For b and 9c, those which emit different colors are used. And, preferably, the transparent outer cylinders 3a, 3b,
The 3c is colored in the same color as the light emitting color of the light emitting diode 21 located therein.

Regarding the outer cylinder 3c, as shown in FIG. 6, the outer cylinder 3a,
It is preferable that the thick portions 31 and the thin portions 32 are distributed in a stripe shape or a lattice shape with a corrugated cross section, for example, to form a lens in each of 3b and 3c. Thereby, when the light from the light emitting diode 21 passes through the outer cylinders 3a, 3b, 3c, it is scattered and the light of the light emitting diode 21 can be visually recognized without interruption from a wide direction.

In the illustrated embodiment, three units 9a, 9b, 9c
However, the number of such units is arbitrary. Since the light emitting diodes currently in practical use have three colors of red, yellow, and green, the number of units can be arbitrarily changed within the range of 1 to 3. However, it does not prevent that the number of units is four or more. Such a change in the number of units, a replacement of the units, and a change in the order of the units can be easily performed by inserting and removing the female connector and the male connector as described above.

Also, the number of light emitting diodes used in one unit is also arbitrary.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing the internal structure of an indicator lamp 1 according to an embodiment of the present invention. FIG. 2 is a front view showing the appearance of the indicator lamp 1 shown in FIG. FIG. 3 is a perspective view showing the support 10c included in the indicator light 1. Fourth
The drawing is a front view showing the wiring boards 11c and 12c constituting the support body 10c shown in FIG. 3 in an exploded manner. Fifth
The figure is an enlarged view showing a connecting portion of the unit 9c and the unit 9b in the indicator light 1 of FIG. FIG. 6 is a sectional view taken along the line VI-VI in FIG. In the figure, 1 is an indicator light, 3a, 3b, 3c are outer cylinders, and 9
a, 9b, 9c are units, 10a, 10b, 10c are supports, 11a, 11b, 11c, 12a, 12b, 1
2c is a wiring board, 13 and 14 are notches, 17a and 17
Reference numerals b and 17c are female connectors, 18a, 18b and 18c are male connectors, 20 is a projecting portion, and 21 is a light emitting diode.

Claims (1)

[Scope of utility model registration request] 1. A display lamp comprising a plurality of units each including a light source and a transparent outer cylinder surrounding the light source, wherein each of the units is combined by two wiring boards so as to have a cross-shaped cross section. Of the outer cylinder, the support arranged in a state where the line of intersection is aligned with the axis of the outer cylinder, the light-emitting diode serving as the light source attached to each overhang of the support, and the outer cylinder. Female connectors for electrical connection attached to each one end of the support when viewed in the direction of the axis, and attached to each other end of the support when viewed in the direction of the axis of the outer cylinder And a male connector connected to a female connector provided in an adjacent unit.