JPH0352161B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an embedded lighting device and a method for embedding the same into a floorboard for a building, a top board for furniture, or other objects to be installed.

<Conventional technology> For example, light emitting diodes (LEDs) are installed on the floorboards of buildings.
At random, or with certain characters or shapes,
Recessed lighting fixtures are known that give the floorboard a shining decorative effect or a walking guidance effect by embedding patterns such as symbols, but the conventional lighting fixtures are As shown in Figure 20, a light-transparent acrylic resin embedded case 1
and a light emitting diode 2 inserted and set behind the light emitting diode 2. The following method is used to embed this into, for example, a building floorboard M.

That is, first, the cover head 4 made of synthetic resin of the semiconductor chip of the light emitting diode 2 is positioned and fixed to the chassis 3 of the metal plate of the embedded case 1 in its penetrating state, and the cover head 4 made of synthetic resin of the semiconductor chip of the light emitting diode 2 is inserted into the case 1 from behind.
Insert. Next, the lead leg 5 of the light emitting diode 2 is bent, and the lead leg 5 is connected to another lead wire 6 by soldering.
Finally, by filling the back space S of the case 1 with a two-component mixed epoxy adhesive 8 so as to seal the soldering part 7, the case 1
A light emitting diode 2 is irremovably fixed and integrated with the light emitting diode 2.

Then, as shown in Fig. 21, the chassis 3 with the lighting fixtures wired thereon is inserted and set into the manufacturing form A of the floor board M according to this work order, and then the mold made of marble or cement milk is inserted into the form A. An upper board layer 9 and a lower board layer 10 made of cement mortar are cast to complete a floor board M of an appropriate size.

<Problems to be Solved by the Invention> However, in such a lighting device, due to its configuration, firstly, the space S behind the embedded case 1 is in a fully open state, and the light emitting diode 2 is exposed to the inside.
Not only is the contact interface between the floorboard M and the lower layer 10 extremely wide, but also the adhesive 8 filled in the space S behind it has a high water absorption rate. Calcium hydroxide ions liberated from the cement mortar of the layer 10 very easily penetrate into the cover head 4 of the light emitting diode 2, and due to the strong alkaline content of the cement mortar, the life of the lighting device is quickly reduced. Put it away.

Second, the lead legs 5 of the light emitting diode 2 are bent at random from their bases, and the lead legs 5 and the lead wires 6
Since the soldering portion 7 of the lead leg 5 is located close to the cover head 4 of the light emitting diode 2, and the temperature difference due to the soldering increases, cracks are likely to enter the cover head 4 from the base of the lead leg 5. This leads to deterioration of durability as a lighting fixture.

Thirdly, at the time of soldering the lead legs 5 and the lead wires 6, the light emitting diode 2 is not yet fixed to the embedded case 1, and the space S behind the case 1 is filled with the adhesive 8. As a result, it is difficult to perform the wiring work of the lead wires 6, including the soldering, efficiently, stably, and firmly.

Fourthly, even when the lighting equipment attached to the chassis 3 is attached, since the case 1 is simply penetrated into the chassis 3, there is a risk that it may come off accidentally, and there is a risk that the chassis 3 Since the case 1 protrudes tall downward from the metal plate surface, the lead wires 6 are bent in a strange way, so the lead wires 6 are laid and wired smoothly and stably so as to back the chassis 1. I can't even do that.

<Means for Solving the Problems> The present invention is intended to improve such problems, and for this purpose, in the structure of an embedded lighting device, a light emitting diode and a synthetic resin embedded case that receives the light emitting diode from above are provided. It comprises a main body and a light-transmissive synthetic resin cap that is screwed onto the case body from above, and a bendable guide tube from which the lead leg of the light emitting diode can be guided out is provided at the bottom of the case body. multiple books,
They are all shaped like an inverted U-shape in cross section with their lower surfaces open, and are formed so as to bulge out in different lateral directions, and the lead legs of the light emitting diode inserted and set into the case body are led out from the bent guide tube of the case body. After bending the guide tube so that the lead leg is folded, heat-seal the lower surface of the opening of the guide tube, and apply the adhesive injected into the case body into the bent guide tube of the lead leg by screwing the cap onto the case body. The main feature is that the above-mentioned light emitting diode is fixedly sealed and integrated into the case body by press-fitting the light-emitting diode until the end of the case. As a method of embedding it into the object,
It consists of a light emitting diode, a synthetic resin embedded case body that receives the light emitting diode from above, and a light-transparent synthetic resin cap that is screwed onto the case body from above in a capped state. At the bottom of the board, place multiple bent guide tubes from which the lead legs of the light emitting diode should be led out.
A lighting fixture is prepared which has an inverted U-shaped cross section with its lower surface open, and which extends in different lateral directions. First, a light emitting diode is inserted and set into the case body of the lighting fixture. The light emitting diode is temporarily fixed inside the case body by bending the lead leg into an almost right-angled L shape so as to lead it out from the guide tube, and then heat-sealing the bottom surface of the opening of the guide tube. The case body is vertically penetrated through the installation openings which are scattered in the metal plate chassis in advance, and when the cap is screwed to the case body, the inside of the case body is By injecting adhesive into the cap, the screwing action of the cap forces the adhesive to flow automatically from the case body to the inside of the bending guide tube for the lead leg, thereby closing the gap between the lead leg and the lead leg. After sealing everything, the tip of the lead leg leading out from the bent guide tube and another lead wire are connected and wired by soldering.
The main feature is that the above-mentioned chassis is inserted and set into the formwork in which the other installation object M is to be manufactured, and the upper and lower layers are poured into the formwork with the chassis sandwiched between them. It is something to do.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example. In FIGS. 1 to 3 showing the embedded lighting device, 11 is a light emitting diode (LED) serving as a light source. As is well known, there is a cover head 12 made of synthetic resin that encloses the semiconductor chip.
and a pair of lead legs 1 that will hang together from now on.
3.

Reference numeral 14 denotes an embedded case body formed from polyethylene or other thermoflexible synthetic resin to have a substantially U-shaped cross section as shown in FIGS. Then, the receiving cylinder 1 for the cover head
A disk-shaped support seat 16 is continuously extended from the side of the lower end of the support seat 5 .

17 is the receiving cylinder 15 of the case body 14.
18 is a pair of lead leg lead-out holes that are also small through the center of the support seat 16, and 19 is a male thread carved in the lower surface of the support seat 16 to indicate the state of communication with the lead-out holes 18. A plurality of rods (total of 3 in the figure) are formed to protrude in the horizontal direction substantially parallel to the metal plate surface of the chassis, which will be described later.
This is a bending guide tube for the lead leg of the book, and by providing a split groove 20 running in the longitudinal direction (horizontal direction), the cross section with an open bottom is shaped into an inverted U-shape. There is.

Therefore, the support seat 16 in the case body 14
The lead leg 13 of the light emitting diode 11 once led out downward from the lead-out hole 18 can be bent laterally into an overall L-shape, and led out through the hollow interior of the guide tube 19 without any trouble. It will be possible to do so. After the guide tube 19 is bent and led out, the lower surface of the opening is heat-sealed (thermally welded) so as to close the groove 20 of the guide tube 19. 21 indicates the heat-sealed portion.

Further, the plurality of bending guide tubes 19 are arranged in a fifth,
As shown in FIG. 6, the support seat 16 extends radially from the center thereof, oriented in different lateral directions. Furthermore, it extends substantially parallel to the metal plate surface of the chassis, which will be described later. Therefore, the lead leg 1 of the light emitting diode 11
When connecting 3 to the lead wires described below, the distribution direction on the wiring can be freely selected, and the lead wires can also be laid smoothly and stably along the metal plate surface of the chassis. It is.

Incidentally, H indicates the amount of protrusion of the case body 14 downward from the metal plate surface due to its relationship with the chassis, but this is compared to that of the conventional embedded case 1 mentioned at the beginning. It is significantly smaller in size.

On the other hand, 22 is a cap molded from acrylic resin or other light-transmitting synthetic resin into a cap nut shape as shown in FIGS. The agreement will be concluded.

In other words, the cover cylinder 2 having a substantially inverted U-shaped cross section covers the receiving cylinder 15 of the case body 14.
3 is carved with a female thread 24 that is compatible with the male thread 17 on the case body 14 side, and a light emitting tower 2 is formed upwardly from the center of the cover barrel 23.
5 is provided in a protruding manner, and the light from the light emitting diode 11 is transmitted through the light emitting tower 25. 26
is a flat surface notched on the outer circumferential surface of the cover cylinder 23, which serves to stably lock the cap rotation operating tool (not shown) when the cap is screwed together.

Furthermore, 27 is an adhesive for sealing the light emitting diode 11 inserted and set into the case body 14 in a completely fixed state without movement, and is made of silicone grease or silicone caulking (sealant). When the cap 22 is screwed onto the case body 14, it is injected into the case body 14.

In other words, the injected adhesive 27 is transferred to the cap 2.
2, the lead leg bending guide tube 19 communicates not only with the inside of the case body 14 but also through the lead leg outlet hole 18 of the support seat 16. The adhesive 27 is forced to flow automatically into the interior of the case body 14, and even the slightest gap existing at the interface between the light emitting diode 11 and the case body 14 is completely filled with the adhesive 27 and sealed. It is. At the same time, the adhesive 27 also applies to the screwing surface between the male screw 17 on the case body 14 side and the female screw 24 of the cap 22.
It will be press-fitted and flowed.

<Function> FIGS. 17 to 19 show how the above-mentioned lighting fixture is embedded in a building floorboard, a furniture top board, or other installation target M. The embedding process is performed as follows.

First, the light emitting diode 11 is inserted and set into the case body 14 of the lighting device, and its lead leg 13 is bent through the lead-out hole 18 of the support seat 16 and inserted into the guide tube 19.
The entire light emitting diode 11 is bent into a substantially right-angled L shape as shown in FIGS. ,1
As shown in FIG. 5, it is temporarily fixed to the case body 14 so that it cannot be removed. On the other hand, the chassis 2 has a plurality of mounting holes 28 scattered at appropriate locations on the metal plate surface in order to position and fix such lighting equipment.
Prepare 9 in advance.

Therefore, the mounting port 2 opened in the chassis 29 next.
8, the case body 14 is attached to the 13th and 17th
As shown in the figure, the cap 22 is passed through the light-emitting diode receiving cylinder 15 in a vertical state, and then the cap 22 is screwed onto the receiving cylinder 15 in a capped state. The adhesive 27 made of silicone grease or silicone caulk is injected into the main body 14.
Cap 2
2 to the case body 14 and rotate it.

Then, the adhesive 27 is applied to the receiving cylinder 1 of the case body 14 covered by the cap 22.
5, of course, from the body tube 15, through the lead leg outlet hole 18 of the support seat 16, to the inside of the bending guide tube 19 which is continuous therewith.
As shown in FIG. 16, the light-emitting diode 11 will flow automatically as if it is completely sealed and filled, and as a result, the entire light-emitting diode 11 will be completely fixed to the case body 14 and completely fixed. It is kept in a sealed state.

Further, the adhesive 27 is also forced into the screwing surface of the case body 14 and the cap 22, so that there is no possibility that the cap 22 will loosen later. Furthermore, when the cap 22 is completely tightened, the metal chassis 29 is attached to the case body 1.
Since the support seat 16 of 4 and the opening edge of the cover cylinder 23 in the cap 22 are tightly sandwiched together, the lighting fixture can be securely positioned and fixed to the chassis 29 as well. The result is

Finally, the tip of the lead leg 13 led out from the bending guide tube 19 and the lead wire 30 of an appropriate length are electrically connected and wired by soldering. 31 is the soldering part, 3
2 indicates a shrink tube for covering the soldering portion 31 and the lead wire 30.

In that case, the soldering part 31 is located far away from the cover head 12 of the light emitting diode 11, as is clear from FIG. It is kept in a completely fixed state without any movement. Furthermore, the light emitting diode 11 is not only completely sealed within the case body 14, but also completely positioned and fixed as a whole to the chassis 29 as a lighting device.

Therefore, the soldering and wiring work can be performed efficiently and reliably, and the lead wires 30 are also parallel to the metal plate surface of the chassis 29.
This allows the wiring to be laid stably and smoothly without causing undue bending or deformation.

In this way, the chassis 29, in which the positioning and fixing of the lighting equipment with respect to the mounting opening 28 and the interconnection wiring thereof have been completed, can be used for building floorboards and furniture ceilings, as in the prior art described at the beginning with reference to FIG. After inserting and setting the board or other installation object M into the formwork to be manufactured, an upper layer 33 made of marble or cement milk and a lower layer 34 made of cement mortar are poured into the form. As a result, it goes without saying that various products such as floor boards and ceiling boards with embedded lighting fixtures can be completed.

In this regard, FIGS. 18 and 19 illustrate the installation state of the lighting fixture embedded in the unit board of the floor board,
By laying the unit boards together as if adding them, it is possible to finish the purpose as a floor board for the floor area, but when applied to a top board such as a table or counter, the top board is similar to the floor board. Since it is smaller than , there is no need to complete it by adding unit boards.

<Effects of the Invention> As described above, the embedded lighting device of the present invention has a structure including a light emitting diode 11 and a synthetic resin embedded case body 1 that receives the light emitting diode 11 from above.
4, and a light-transmissive synthetic resin cap 22 that is screwed onto the case body 14 from above in a crowned state.
In the lower part of the case body 14, a plurality of bending guide tubes 19 from which the lead legs 13 of the light emitting diodes 11 can be led out are provided, all of which have an inverted U-shaped cross section with their lower surfaces open, and are connected to each other. The lead legs 13 of the light emitting diode 11, which are formed to extend in different lateral directions and are inserted and set in the case body 14, are bent so as to be led out from the bent guide tube 19 of the case body 14, and then While heat sealing the lower surface of the opening, adhesive 27 is injected into the case body 14.
is forced into the bent guide tube 19 of the lead leg 13 by the screwing action of the cap 22 to the case body 14, and the light emitting diode 11 is fixedly enclosed in the case body 14. , it has the effect of solving all the problems of the prior art mentioned at the beginning.

That is, in the case of the present invention, the light emitting diode 11 is kept in a completely sealed state and fixed state inside the case body 14, so it is strongly used as the lower layer 34 of the installation target M in which the lighting device is embedded. Even if alkaline cement mortar is used,
Thereby, there is no fear that the light emitting diode 11 will be corroded, and the overall durability of the lighting fixture including the diode 11 can be significantly improved.

In that case, especially if silicone grease or silicone caulk is adopted as the adhesive 27,
Compared to the two-component mixed epoxy adhesive mentioned at the beginning, its water absorption rate is significantly lower, and its physical properties change less due to temperature changes such as during soldering, so the above effects can be further enhanced. Become.

Further, the light emitting diode 11 is sealed and fixed in the case body 14, and its lead leg 13 is bent and fixed in advance by a bending guide tube 19, and its tip end is bent and fixed in advance. Since the soldering portion 31 between the lead wire 30 and the lead wire 30 is thus kept far apart, there is no risk of cracks entering the cover head 12 from the base of the lead leg 13, and from this point of view, the lighting equipment is Durability is improved.

Furthermore, as a method of embedding the above-mentioned lighting fixture in a floor board for a building, a top board for furniture, or other installation object M, the case body 14 of the lighting fixture can be placed on the chassis 2.
It is sufficient to pass the cap 22 vertically through the mounting opening 28 of the case body 14 and screw the cap 22 together while injecting the adhesive 27 into the case body 14, thereby making it possible to embed the cap 22 in an extremely efficient manner.

During the embedding process, if the cap 22 is screwed onto the case body 14, the chassis 2 is inserted between them.
The entire lighting fixture can be reliably positioned and fixed as shown in FIG. It also has the effect of being able to execute with extremely high efficiency in a stable state.

Furthermore, in relation to the chassis 29, the bending guide tube 19 for the lead leg of the case body 14 extends substantially parallel to the metal plate surface thereof, and the amount of protrusion H from the plate surface is small. So,
The lead wires 30 connected to the lead legs 13 can be laid and wired stably and smoothly along the chassis 29 without being forcibly bent, and from this point of view, it can be said to be extremely useful in practice.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the disassembled state of the lighting fixture according to the present invention, FIGS. 2 and 3 are perspective views of two types of assembled states in which the leading legs of the lighting fixture are different in direction, and FIGS. A front view, a top view, and a bottom view showing the embedded case main body extracted, and Fig. 7 is 7- in Fig. 5.
7-line sectional view, Figures 8 and 9 are front and plan views showing the extracted cap, and Figure 10 is the 10th line in Figure 9.
-10 line sectional view, FIG. 11 is a front sectional view showing the insertion operation of the light emitting diode into the case body, FIG. 12 is a front sectional view showing the heat-sealed state of the bending guide tube for the lead leg in the case body, FIG. 13 is a front sectional view showing the screwed state of the cap to the case body, FIG. 14 is an enlarged sectional view taken along line 14-14 in FIG. 11, and FIG.
Figure 5 is an enlarged cross-sectional view taken along line 15-15 in Figure 12, Figure 16 is an enlarged cross-sectional view taken along line 16-16 in Figure 13, and Figure 17 shows how the lighting fixture is embedded in the installation target. 18 and 19 are plan views showing two types of embedding distribution patterns, FIG. 20 is a side sectional view showing a conventional embedding state corresponding to FIG. 17, and FIG. 21 is a manufacturing type thereof. FIG. 3 is a side sectional view showing a state in which the chassis is inserted into the frame. 11...Light emitting diode, 13...Lead leg,
14...Embedded case body, 19...Bending guide tube, 22...Cap, 23...Cover barrel,
26... Flat surface, 27... Adhesive, 28... Mounting port, 29... Chassis, 30... Lead wire, 33
...Upper board layer, 34...Lower board layer, M...Object to be installed.

Claims (1)

[Scope of Claims] 1. A light emitting diode 11, a synthetic resin embedded case body 14 that receives the light emitting diode from above, and a light-transmissive synthetic resin cap 22 that is screwed onto the case body 14 from above. In the lower part of the case body 14, a plurality of bending guide tubes 19 from which the lead legs 13 of the light emitting diodes 11 can be led out are provided, all of which have an inverted U-shaped cross section with their lower surfaces open, and are connected to each other. The lead legs 13 of the light emitting diode 11, which are formed to extend in different lateral directions and are inserted and set in the case body 14, are bent so as to be led out from the bent guide tube 19 of the case body 14, and then While heat sealing the lower surface of the opening, adhesive 27 is injected into the case body 14.
is forced into the bent guide tube 19 of the lead leg 13 by the screwing action of the cap 22 to the case body 14, and the light emitting diode 11 is fixedly enclosed in the case body 14. A recessed lighting fixture that is characterized by 2. Claim 1, wherein the embedded case body 14 is molded from a thermoflexible synthetic resin such as polyester, and the adhesive 27 injected into the interior thereof is made of silicone grease or silicone caulking.
Recessed lighting fixtures as described. 3. A claim characterized in that the cap 22 is molded from acrylic resin into a cap nut shape, and a flat surface 26 for locking a rotary operation tool is provided on the outer peripheral surface of the cover cylinder 23 relative to the case body 14. 1. The recessed lighting fixture according to 1. 4. A light-emitting diode 11, an embedded case body 14 made of synthetic resin that receives the light-emitting diode 11 from above, and a light-transmissive synthetic resin cap 22 that is to be screwed onto the case body 14 from above in a capped state. At the bottom of the case body 14, a plurality of bending guide tubes 19 from which the lead legs 13 of the light emitting diodes 11 are to be guided are provided, all of which have an approximately inverted U-shaped cross section with their lower surfaces open.
In addition, lighting fixtures protruding in different lateral directions are prepared, and first, the light emitting diode 11 is inserted and set into the case body 14 of the lighting fixture, and its lead leg 13 is led out from the guide tube 19. The light-emitting diode 11 is temporarily fixed in the case body 14 by bending it into a substantially right-angled L-shape and heat-sealing the lower surface of the opening of the guide tube 19, and then attaching it to the metal plate chassis 29. The case body 14 is vertically penetrated through the mounting holes 28 which are opened in a scattered manner in advance, and when the cap 22 is screwed onto the case body 14, the inside of the case body 14 is inserted. By injecting the adhesive 27 into the lead leg bending guide tube 19, the adhesive 27 is forced to flow by itself from the case body 14 to the inside of the lead leg bending guide tube 19 by the screwing action of the cap 22. All gaps with the lead leg 13 are sealed, and finally, the tip of the lead leg 13 led out from the bent guide tube and another lead wire 30 are connected and wired by soldering, and then attached to building floorboards or furniture. The chassis 29 is inserted and set into the formwork in which the top plate and other objects M to be installed are to be manufactured, and the upper board layer 33 and the lower board layer 34 are hammered into the formwork so as to sandwich the chassis 29 therebetween. 1. A method for embedding a recessed lighting fixture, characterized by: 5. The method for embedding an embedded lighting device according to claim 4, characterized in that the bending guide tube 19 for the lead leg of the case body 14 in the lighting device is set in a relationship substantially parallel to the metal plate surface of the chassis 29. . 6. By screwing the cap 22 onto the case body 14 of the lighting fixture, the case body 14
5. The method of embedding an embedded lighting device according to claim 4, further comprising positioning and fixing the lighting device so that the chassis 29 is sandwiched between the lamp and the cap.