JPH09161511A - Indicating lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indicating lamp having no problem of improvement in assembly workability or guilty. SOLUTION: A display lamp concerned is composed of a fixture body 30 attached to the surface to be mounted, a display plate 40 made of synthetic resin provide at the top with a plurality of recesses 16, a printed circuit board 20 furnished with a plurality of light sources 22 mating with the respective recesses 16 located over the display plate 40, a coupling member 65 to couple the top of the plate 40 with the two ends of the circuit board 20, and a cover enclosing the light source 22 and the top of the display plate. The under-part of the coupling member 65 is attached to the top ends of the display plate 40 while the over-part of the member 65 is fixed to the ends of the circuit board 20 on which the light sources 22 are installed so that a signal piece structure is accomplished, and also the over-part of the member 65 is fixed to the fixture body 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an edge type indicator lamp used for guidance display in commercial spaces, offices, factories and facilities.

[0002]

2. Description of the Related Art This type of indicator lamp has a lamp arranged on the end face corresponding to the plate thickness of a display plate made of synthetic resin such as a glass plate or an acrylic plate on which characters or illustrations are printed or stamped. , The light of this lamp is applied to the end face of the display plate to let the light pass through the inside of the display plate. Inside, this light does not go out because it is totally reflected on the back surface side of the display plate, and repeats reflection to reach the bottom. However, the light does not undergo total reflection on the back side of the display board and goes out only where there are characters or illustrations printed or engraved on the surface. Therefore, only this part becomes dark.

Due to the above-described nature of light, the entire display plate is illuminated by the light of the lamp, and the portion where characters and illustrations are present is raised. In this type of indicator lamp, the length in the longitudinal direction of the indicator lamp is changed by increasing or decreasing the wattage of the lamp or the number of lamps.

A conventional technique will be described with reference to FIGS.

Reference numeral 2 denotes an instrument main body which is attached to a ceiling 25 which is a surface to be attached. The main portion 3 has a substantially flat plate shape which is attached to the ceiling 25, and the main portion 3 is bent downward at a substantially right angle from the left end in the longitudinal direction. It is formed integrally with a substantially L-shaped body back cover 4 which is bent and bent substantially horizontally inward from the lower end. Further, the mounting plate 5 is bent upward at a substantially right angle from the longitudinal end of the main body back cover-4, and the mounting plate 5 rises downward from the longitudinal right end of the main portion 3. The piece 6 is bent and formed at a substantially right angle.

Reference numeral 20 denotes a rectangular printed circuit board. On the lower surface of the printed circuit board 20 in the longitudinal direction, a large number of light emitting diodes 22 are attached in a row downward. Furthermore, on the upper surface of the printed circuit board 20, a power connector (B) 2 electrically connected to the light emitting diode 22.
8 are attached.

Reference numeral 18 denotes a substantially U-shaped mounting member, which is attached to both ends of the main portion 3 of the instrument body in the longitudinal direction by electric welding or the like. Both ends of the printed circuit board 20 to which the plurality of light emitting diodes 22 are attached are fixed to these attachment fittings 18 with attachment screws and nuts.

Reference numeral 15 is a rectangular display plate.
At the upper end in the longitudinal direction, a large number of substantially semicircular recesses 16 formed at the same pitch as the mounting pitch of the light emitting diode 22 are formed.

A method of assembling the indicator lamp will be described.

First, the openings of the substantially U-shaped fittings 18 are made to face each other and fixed to both ends of the lower surface in the longitudinal direction of the main portion 3 of the instrument body by fixing means such as electric welding. Tighten the mounting surface with mounting screws (not shown).

Next, as shown in FIG. 10, the both ends of the printed circuit board 20 to which the light emitting diode 22 and the power source connector (B) 28 are attached are respectively attached to the attachment fittings 18 by the attachment screws and nuts as fastening members. Tighten and fix it to the bottom surface of.

Further, the light emitting diode 22 is positioned in the recess 16 of the display plate 15, and the display plate 15 is fixed to the mounting plate 5 with the mounting screws 8 and nuts 9, respectively.

Finally, the body cover 10 having a substantially L shape is fixed to the falling piece 6 of the instrument body 2 with the screw 12 so as to surround the light emitting diode 22 and the upper end of the display plate 15. .

[0014]

As described above, the light-entering surface (upper end surface of the display plate) of the display plate 15 attached to the conventional instrument body 2 allows the light from the light-emitting diode 22 to be evenly distributed.
5 is a semi-circular recess 16 so that it can be guided to the whole
Is formed. Furthermore, since the light emitting diode 22 has a small amount of light, the light emitting diode 22 is arranged so as to hold an interval (for example, 1 mm to 2 mm) close to the concave portion 16. Further, the display body 15 is attached to the instrument body 2 by attaching the light emitting diode 2 to the instrument body 22 attached to the ceiling 25.
The display board 15 was attached to the instrument main body 2 after the printed circuit board 20 to which the reference numeral 2 was attached was assembled.

For this reason, when the light emitting diodes 22 are respectively aligned with the recesses 16 of the display plate, the distance between the light emitting diode and the recesses is small, so that it takes time to attach the display plate to the instrument body. At the same time, the installation work requires a lot of nerves and the work efficiency decreases. In particular, when a large number of indicator lamps are attached, there is a problem that the work efficiency further decreases.

Further, when the display plate 15 is attached to the instrument body 2, the display plate 15 may hit the light emitting diode 22 and the light emitting diode 22 may be bent. In this case, there is a quality problem that the light is deviated and light and shade are generated on the surface of the display plate.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an indicator lamp with improved assembly workability and no quality problem.

[0018]

In order to achieve the above-mentioned object, the indicator lamp of the present invention is a display plate made of an instrument main body to be attached to an attachment surface and a synthetic resin having a plurality of recesses formed at its upper end. And a printed circuit board on which a plurality of light source units are mounted above the display plate, the light source units being disposed so as to face the recesses, and a connecting member for connecting both upper ends of the display plate and both ends of the printed circuit board. And a cover that covers the light source portion and the upper end portion of the display plate. The lower side of the connecting member is attached to both upper ends of the display plate, and the upper side of the connecting member is attached with the light source portion. Further, it is characterized in that it is attached to both ends of the printed circuit board to form an integrated structure, and the upper side of the connecting member is attached to the instrument body.

In the above structure, the display board and the printed circuit board to which the light emitting diode is attached are assembled in an integrated structure through the connecting metal fittings. For example, in the first embodiment, they are connected. The nuts of the mounting screws fixing the metal fittings and the printed circuit board were removed one by one and fixed to the mounting metal fittings mounted on the fixture body respectively, so that the light emitting diode mounted on the printed circuit board and the concave part of the display board The positional relationship of is almost unchanged. Therefore, when constructing the indicator lamp, the operator does not have to worry about the positional relationship between the light emitting diode and the concave portion of the indicator plate. further,
Since the positional relationship between the light emitting diode and the concave portion of the display plate hardly changes, the light emitting diode does not deviate from the concave portion of the display plate.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 9 is a perspective view showing the entire structure of the indicator lamp according to the present invention. Note that the same components as in the related art will be described with the same reference numerals.

Reference numeral 30 denotes an instrument main body having a front opening, and a main body cover 35 is hooked and attached to an upper end of the instrument main body 30 so as to cover the front opening. Further, at both end openings of the instrument body 30, end plates 45 having a substantially semi-cylindrical shape are provided below.
45 are respectively fixed to the mounting brackets (not shown) by mounting screws 46. In addition, a plate-shaped display plate 40 that vertically projects from the lower end of the instrument body 30 in the longitudinal direction,
Each 40 is attached to the instrument body 30. The display board 40 is made of glass, synthetic resin such as transparent acrylic, or the like, and has a display section 40a formed of characters such as a doorway on its surface. This display 40a
Is formed by printing or engraving characters or illustrations on the surface of the display plate 40.

As shown in FIG. 5, the instrument main body 30 has a substantially flat plate-like main portion 31 which is attached to the ceiling 25, which is a surface to be attached, with an attaching screw (not shown), and a rear end in the longitudinal direction of the main portion 31. A substantially L-shaped main body back cover 32, which is formed at a substantially right angle downward and is bent at a lower end in a substantially horizontal direction, and a main body back cover 32, which is bent at a substantially right angle upward from a longitudinal end thereof. It is formed integrally with the bent rising piece 33.

Reference numeral 50 denotes a substantially U-shaped mounting member, which is a rectangular-shaped mounting member main portion 50a provided with a screw hole 51, and is bent inward from the upper and lower ends of the main portion 50a at substantially right angles. The upper bent piece 50b and the lower bent piece 50c, and the elastic piece 52 is provided to the right of the upper bent piece 50b.
Is formed in a protruding manner, and the elastic piece 52 is provided with a slit-shaped locking hole 53. Further, the downward bending piece 50c
A hole 56 is formed in the hole.

As shown in FIG. 1, the fittings 50 are fixed to the main part 31 by electric welding or the like with the openings of the fittings 50 facing each other at both ends of the lower surface of the main part 31 of the instrument body in the longitudinal direction. Has been done.

On the lower surface of the main part 31 of the apparatus main body, a power supply device 60 for fixing an external power supply of 100 V AC to a specified voltage of the light emitting diode 22, for example, 5 V DC is fastened and fixed by a screw (not shown). ing. This power supply 6
A power supply wire 62 is attached so as to project from the right end of 0, and a pair of lead wires 63, 63 are provided which project from the left end and to which the power supply connector (A) 29 is attached at the tip. Further, a storage battery 61, which serves as a power source in case of power failure, is attached to the lower surface of the main portion 31.

FIG. 2 shows a horizontally long plate-like display plate 40 made of synthetic resin such as glass or acrylic resin. A light emitting diode 22 mounted on a printed circuit board 20 has a recess 16 having a substantially semicircular shape at the upper end. Are formed with the same pitch. Further, mounting holes 17, 17 for mounting the connecting fitting 65 are formed at both ends of the upper portion. Further, a display portion 40a is printed or engraved on one surface of the display plate 40.

As shown in FIGS. 3 and 4, reference numeral 65 is a connecting fitting for connecting the printed circuit board 20 and the display board 15, and the display board holding piece 66 is formed by bending inward from both lower ends in parallel. , 66 and a mounting piece 69 which is bent outward from the upper end at a substantially right angle.
6, holes (A) 67, 67 are formed so as to face each other, and a hole (B) 68 is formed in the mounting piece 69.

As shown in FIG. 4B, holes (C) 20a are formed at both ends of the rectangular one-sided printed circuit board 20, respectively. Further, in the longitudinal direction of the lower surface of the printed circuit board 20, the legs 22a, 2 of the plurality of light emitting diodes 22 are provided.
2a is inserted into the printed circuit board 20,
Is fixed by soldering to a conductive pattern (not shown) formed on the upper surface of the.

Next, the assembly procedure of the above embodiment will be described.

First, as shown in FIG. 1, mounting brackets 50 and 50 are fixed by electric welding to both ends of the lower surface of the main portion 31 of the instrument body, and a power supply device 60 and a storage battery 61 are not shown. Each of them is attached to the lower surface of the main portion 31 of the instrument body with a screw. Then, the instrument body 3
0 is attached to the ceiling 25, which is the surface to be attached, by a screw (not shown).

Next, as shown in FIG. 3A, the display plate 40 is back-to-back so that the display portions 40a are on the front side, and the spacer 42 made of a non-transparent material is placed in the center.
In between. Then, these are inserted between the display plate holding pieces 66, 66 of the connecting fitting 65, and the mounting hole 17 of the display plate 40 is inserted.
After aligning the holes (A) 67 of the connection metal fittings with the fittings 75, the mounting screws 75 are inserted into these holes 17, 67, 17 and the nuts 76 are screwed onto the threaded portions of the mounting screws 75 from the rear surface side. The connecting fittings 65 are attached to the display boards 40 (see FIG. 4C).

Then, as shown in FIGS. 4A and 4B, the printed circuit board 2 to which the light emitting diode 22 is attached is mounted.
The holes (C) 20a, 20a formed at both ends of 0 and the hole (B) 68 of the connecting fitting 65 are respectively aligned, a mounting screw 80 is inserted from below the holes 68, 20a, and a nut 81 is inserted from above. The display plate assembly 39 is formed by integrally fixing it to the thread portion of the mounting screw 80 by screwing.

A method of assembling the display plate assembly 39 to the mounting bracket 50 will be described.

First, the nut 81 on one side is attached to the mounting screw 8
It is in the state of the integrated structure removed from 0. In the state of this integrated structure, after inserting the tip of the mounting screw 80 into the hole 56 formed in the lower bent piece 50c of the mounting bracket 50, the mounting screw 8
A nut 81 is screwed onto the tip of the No. 0 and fixed to the mounting bracket 50.

Similarly, the nut 81 on the other side is removed from the mounting screw 80 to form an integrated structure. In this integrated structure, the tip of the mounting screw 80 is attached to the hole 56 of the mounting bracket 50.
Then, the nut 81 is screwed onto the tip of the mounting screw 80 and fixed to the mounting bracket 50.

Finally, as shown in FIG. 6, the main body cover-3
The locking piece 36 bent downward from the upper edge of 5 is inserted into the slit-shaped locking hole 53 formed in the elastic piece 52, and is attached so as to cover the entire opening of the instrument body 30. Then, the end plates 45, 45 are attached to the screw holes 51 of the mounting bracket by the mounting screws 46 so as to cover the openings at both ends of the instrument body 30, respectively.
It is fixed by screwing on.

As described above, in assembling the display board and the printed circuit board to which the light emitting diode is attached, the upper and lower ends thereof are integrated with each other through connecting metal fittings, and then, in the integrated structure, that is, Since the nuts of the mounting screws that fix the connecting bracket and the printed circuit board were removed one by one and fixed to the mounting brackets that were mounted on the instrument body, the light emitting diode mounted on the printed circuit board and the recessed part of the display board The positional relationship with is almost unchanged.

Therefore, when constructing the indicator lamp, the operator does not have to worry about the positional relationship between the light emitting diode and the concave portion of the indicator plate, so that the efficiency of the mounting operation does not decrease. Further, the display board does not hit the light emitting diode.

Further, since the positional relationship between the light emitting diode and the concave portion of the display plate is hardly changed, the light emitting diode does not deviate from the concave portion of the display plate. There is no occurrence of light and shade on the surface of the display plate due to the deviation.

The second display plate assembly structure will be described with reference to FIG.

A plate nut 90 is used in place of the nut 81 shown in FIG. 4, and a display plate assembly 89 having an integral structure is formed as shown in FIG. 7B.

A method of assembling the display plate assembly 89 to the mounting bracket 50 will be described.

The tip ends of the screw parts of the mounting screws 80 of the display plate assembly 89 in the state of the integrated structure are respectively inserted into the holes 56 of the mounting bracket 50.
, And a nut 81 is screwed onto the tip of the mounting screw 80 to fix the display plate assembly 89 to the mounting bracket 50.

As described above, when assembling the display board and the printed circuit board to which the light emitting diode is attached, the upper and lower ends thereof are integrally formed through the connecting metal fittings, and then, in an integrated structure state, that is, With the connecting bracket and the printed circuit board fixed with the mounting screw and plate nut, insert the tip of the screw part of the mounting screw into the hole of the mounting bracket attached to the instrument body, and then remove the nut from the tip of the mounting screw. Since the display plate assembly is screwed and fixed to the instrument body, the positional relationship between the light emitting diode mounted on the printed circuit board and the concave portion of the display plate does not change.

Therefore, when constructing the indicator lamp, it is not necessary for the operator to get nervous about the positional relationship between the light emitting diode and the concave portion of the indicator plate, so that the work efficiency of the mounting work does not decrease. . Further, the display board does not hit the light emitting diode.

Further, since the positional relationship between the light emitting diode and the concave portion of the display plate does not change, the light emitting diode does not deviate from the concave portion of the display plate, and the light deviates toward the display plate. There is no light and shade on the surface of the display board.

The third display panel assembly structure will be described with reference to FIG.

In addition to the holes (C) 20a and 20a formed at both ends of the printed circuit board 20 shown in FIG. 4B, holes (C) are formed at the corners of the printed circuit board 20 on both diagonal sides in the longitudinal direction. D) 20b and 20b are provided, respectively. Further, the hole (D) is formed in the attachment piece 69 of the connecting fitting 65.
A hole (E) 94 is formed at a position corresponding to 20b. Insert the mounting screws 95 from below these holes 94, 20b,
A nut 96 is screwed onto the tip of the mounting screw 95 to connect the connecting fitting 6
Tighten and fix with 5 (see FIG. 8 (A)) to form an integral structure. In the state of this integrated structure, holes (B) 68 formed respectively at both ends of the printed circuit board 20 in the longitudinal direction,
Align the holes 56 of the attachment fittings 50 attached to both ends of the instrument body 30 in the longitudinal direction, insert the attachment screws 80 into the holes 68, 56 from below, respectively, and then attach the nuts 81 to the tips of the attachment screws 80. The printed circuit board 20 is attached to the device body 30 by screwing.

As described above, when assembling the display board and the printed circuit board to which the light emitting diode is attached, the both ends thereof are integrated with each other through the connecting metal fittings, and then, in the integrated structure, that is, the connection is made. With the metal fitting and the printed circuit board fixed with the mounting screws 95 and the nuts 96, the display board assembly is connected to the holes (C) formed at both ends in the longitudinal center of the printed circuit board as in the first embodiment. Since the mounting screw was inserted into the hole (B) of the metal fitting from below and the nut was screwed from the tip of this mounting screw to mount the display board assembly to the main body of the fixture, the light emitting diode mounted on the printed circuit board and The positional relationship with the concave portion of the display plate does not change.

Therefore, when constructing the indicator lamp, the operator does not have to worry about the positional relationship between the light emitting diode and the concave portion of the indicator plate, and the work efficiency in the mounting work does not decrease. Further, the display board does not hit the light emitting diode.

Further, since the positional relationship between the light emitting diode and the concave portion of the display plate does not change, the light emitting diode is not deviated from the concave portion of the display plate, and the display plate is generated due to the light deviating toward the display plate. There is no light and shade on the surface.

[0052]

As described above in detail, according to the present invention, the lower side of the connecting member is attached to both upper ends of the display board, and the upper side of the connecting member is attached to both ends of the printed circuit board to which the light source section is attached. Since the upper side of the connecting member and the printed circuit board are respectively attached to the main body of the device in the state of this integrated structure, the light emitting diode attached to the printed circuit board and the concave portion of the display plate are attached. The positional relationship with is almost unchanged.

Therefore, when constructing the indicator lamp, the operator does not have to worry about the positional relationship between the light emitting diode and the concave portion of the indicator plate, so that the efficiency of the mounting operation does not decrease. Assembly workability can be improved.

Further, since the positional relationship between the light emitting diode and the concave portion of the display plate is hardly changed, the light emitting diode does not deviate from the concave portion of the display plate. It is possible to provide a display lamp having no problem in terms of quality without causing light and shade on the surface of the display plate which is caused by the deviation.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a main body cover of an indicator lamp according to an embodiment of the present invention is removed.

FIG. 2 is a front view showing a display plate in the embodiment.

FIG. 3 is a left side view showing a state in which a display plate is attached to a connecting fitting in the embodiment. (B) is a front view.

FIG. 4 is a view showing a mounting state of the display plate assembly in the embodiment, and (A) is a front view of the display plate assembly. FIG. 6B is a front view showing a state in which the light emitting diode is attached to the printed board. (C) is a front view showing a state in which the display plate is attached to the connecting fitting.

FIG. 5 is a side view showing a state in which the main body cover of the indicator lamp in the embodiment is removed.

FIG. 6 is a side view showing an indicator lamp in the embodiment.

FIG. 7 is a front view showing a state in which the display plate assembly according to the second embodiment is attached to a mounting member, and FIG. 7A is a state in which the display plate assembly is attached to the mounting member. FIG. 6B is a front view showing a state where the display plate assembly is attached to the mounting bracket.

FIG. 8 is a perspective view showing a display board assembly according to a third embodiment, in which (A) shows a state in which a connecting fitting is attached to a printed board. FIG. 3B is a perspective view showing a printed circuit board.
(C) is a perspective view showing a connecting fitting.

FIG. 9 is a perspective view showing an indicator lamp in the embodiment.

FIG. 10 is a front view showing a state in which the main body cover of the indicator lamp according to the related art is removed.

FIG. 11 is a left side view showing a state in which a printed circuit board is attached to a device body according to a conventional technique.

FIG. 12 is a left side view showing a state in which a main body cover of a display lamp according to a conventional technique is removed.

FIG. 13 is a left side view showing a conventional indicator lamp.

[Explanation of symbols]

 16 ... Recessed part, 20 ... Printed circuit board, 22 ... Light emitting diode (light source part), 25 ... Ceiling (mounting surface), 30 ... Instrument body, 32 ... Main body back cover, 35 ... Main body cover, 40 ... Display Plate, 65 ... Connecting fitting (connecting member).

Claims (1)

[Claims] 1. An instrument main body mounted on a mounting surface, a display plate made of synthetic resin or the like having a plurality of recesses formed at an upper end thereof, and arranged above the display plate so as to face the recesses, respectively. A printed circuit board to which a plurality of light source parts are attached; connecting members that respectively connect both upper ends of the display board and both ends of the printed board; and a cover that covers the light source section and the upper end part of the display board. The lower side of the connecting member is attached to both upper ends of the display plate, and the upper side of these connecting members is attached to both ends of the printed circuit board to which the light source unit is attached, thereby forming an integrated structure. An indicator light having an upper side of the device attached to the instrument body.