CA1298609C - String-shaped indication lamp - Google Patents
String-shaped indication lampInfo
- Publication number
- CA1298609C CA1298609C CA000555006A CA555006A CA1298609C CA 1298609 C CA1298609 C CA 1298609C CA 000555006 A CA000555006 A CA 000555006A CA 555006 A CA555006 A CA 555006A CA 1298609 C CA1298609 C CA 1298609C
- Authority
- CA
- Canada
- Prior art keywords
- light
- emission
- indication lamp
- bodies
- transparent resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Road Signs Or Road Markings (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A string-shaped indication lamp wherein a plurality of light-emission bodies comprising light-emitting diodes embedded in a light transmissible resin are connected with suitable intervals using electrically insulated lead wires while covering the lower faces of the light-emission bodies and parts of outer peripheries of the light-emission bodies with an insulating material, and step parts are formed around the outer peripheries of the light-emission bodies.
A string-shaped indication lamp wherein a plurality of light-emission bodies comprising light-emitting diodes embedded in a light transmissible resin are connected with suitable intervals using electrically insulated lead wires while covering the lower faces of the light-emission bodies and parts of outer peripheries of the light-emission bodies with an insulating material, and step parts are formed around the outer peripheries of the light-emission bodies.
Description
o~
The present invention relates to an indication lamp using the light-emitting diode and more particularly to a string-shaped indication lamp with a plurality of light-emission bodies comprising light-emitting diodes, which is advantageously used by embedding in a concrete construction, etc.
A light-emission body using the light-emitting diode, as known in the prior art, is widely used because filament break or rupture less frequently occurs than with an electric bulb.
For example, the use of such a light-emission body as an indicating device for roads or construction sites is disclosed in Japanese Patent Kokai No. 76304jl984 in which light-emitting diode with a light-emitting surface created on a transparent resin is embedded in the light-emission body. Then this body is buried in a block and this block is used as an elemental device for the indicating device. Normally, a plurality of such light-emission bodies are embedded in a block. However, khese bodies are not connected in advance. Therefore, it is required to connect each independently embedded body using lead wires, needing tedious work. Where the block does not comprise electric insulation, electric parts of the light-emission 1~,~' ~ ~
$
body are to be embedded, not covered with the resin, and the lead wires for connection must be electrically insulated, hich used to restrict operation site as a matter of disadvantage.
According to one aspect of the invention there is provided a series of indication lamps, for use in buried state in a road, a concrete structure or the like, having a plurality of light-emission bodies connected at suitable intervals by means of electrically insulated lead wires in a current-conducting manner, each of said light-emission bodies comprising a light-emitting diode embedded in a transparent resin in such a manner that a light-transmissible upper face of the resin becomes a light-emitting face, a lower face and most of outer periphery of each of the light-emission bodies being entirely covered enbloc with an insulation material except for an upper par to ensure complete insulation of the light emission body, and further said light emitting bodies each having a step part formed on the outer periphery.
The preferred embodiment of the present invention provides a light emission body comprising a light-emitting diode embedded in a transparent resin in such a manner that the upper face of the resin becomes a light-emitting face.
The preferred embodiment of the present invention also arranges a plurality of the light-emission bodies with suitable intervals and connects the bodies using electrically insulated lead wires in a current conducting manner.
The preferred embodiment of the present invention further covers the lower surface and outer side of the light-emission body with an insulation material, leaving an outer part of the upper side uninsulated.
~ - 2 -The preferred embodiment of the present invention again provide a string-shaped indication lamp by forming a step part in the outer periphery of the light-emission body.
Said step part may be formed by the upper end face of said insula-tion or a spring e~uipped in the outer periphery of the liyht-emission body.
The present invention will be further illustrated by way oE
the accompanying drawings in which:
Fig. 1 is a perspective view of an embodiment of the string-lo shaped indication lamp according to the present invention.
Fig. 2 shows a perspective view of the - 2a -~9~ 9 light-emission body.
Figs. 3, 4 and 5 shown an example of the manufacturing process for the string-shaped indication lamp according to the present invention.
Fig. 1 shows a string-shaped indication lamp comprising a light-emission body 1, a lsad wire 2, and an insulation material 3.
The light-emission body 1 comprises a main cylindrical body la made of a light-transmissible resin and necessary electrical materials equipped underneath the main body la, in which said main body la is provided with an embedded light-emitting diode lb with its upper face working as a light-emitting face as known while said electrical materials comprising for example a resistance 4 and a lead wire 5.
The shape of the main body may not always be a cylinder but may be a square column or a flat irregular shape. Each light-emission body 1 is connected together by joining an insulated lead wire 2 with each outlet wire 5. Consequently, the indication lamp of the present invention is formed generally in a string shape and installed with intexvals in-regard to a construction in which the lamp is embedded. In addition, various advantages are realized with ,J` ';~
-` ~Z~6~}~
the indication lamp manufactured according to the present invention, different from those lamps fixed on a base plate, etc. as known in the prior art, such as higher flexibility and that a plurality of light-emission bodies can be arranged uniformly even on a curved or rugged surface.
The light-emission body 1 is covered with an insulated material except for its upper face and a part of the outer periphery. The upper face of the covering 3 forms a step part 3a towards the outer periphery of the light-emission body 1.
This step part may be formed by providing a spring of square section in the outer periphery of the main body r~se /~
la i~ of -the light-emission body 1. At that time, the covering 3 may be done only to a part butting to the spring.
With this step part 3a equipped, a plurality of the light-emission bodies 1 can be embedded at one time by means of this step part 3a equipped, while the upper parts of the plural light-emission bodies being set in a mold form.
The range of the outer periphery of the light-emission body 1, to be covered with the covering 3, may be approximately one-half of the total heigh-t of the main body la. Conducting parts of the string-shaped indication lamp according to the present invention are totally covered with an insulation material. Therefore, safety of operation is assured even where the lamp is embedded in a composi-te agent containing moisture such as a concrete construction. The number of light-emission bodies in this string-shaped indication lamp is not limited by any restrictions other than ~2~
those applicable to this kind of indication lamp.
An example of manufacturing the foregoing string-shaped indication lamps is shown in the following paragraphs.
First, the light-emitting diode lb is embedded with i-ts upper face to work as a ligh-t-emitting face, in a main body la in which a necessary outlet wire 5 is arranged in its lower face while connecting a resistance 4, etc. to the main body la comprising light-transmissible resin. This light-emission body 1 is set on an assembling base plate 7 with a circular cutting line 8 for separation as shown in Fig. 3 so that the light-emission body 1 is located at the center of the circular cutting line 8. A lead wire 2 is connected to the outlet wire e~uipped at the lower face of the light-emission body 1 by soldering. Next, each light-emission body 1 is separated along the cutting line 8, together with a part 7a of the assembling base plate within the cutting line. Individual light-emission bodies 1 are set in a mold form 6 shown in Fig. ~, inversely as shown in Fig. 5. An insulating resin is poured from a gap between the mold form 6 and the light-emission bodies 1. The resin is hardened while integrating the covering 3. Thus, the assembly of the string-shaped indication lamp is completed by pulling out the assembly from the mold after the resin is completely cured.
The present invention relates to an indication lamp using the light-emitting diode and more particularly to a string-shaped indication lamp with a plurality of light-emission bodies comprising light-emitting diodes, which is advantageously used by embedding in a concrete construction, etc.
A light-emission body using the light-emitting diode, as known in the prior art, is widely used because filament break or rupture less frequently occurs than with an electric bulb.
For example, the use of such a light-emission body as an indicating device for roads or construction sites is disclosed in Japanese Patent Kokai No. 76304jl984 in which light-emitting diode with a light-emitting surface created on a transparent resin is embedded in the light-emission body. Then this body is buried in a block and this block is used as an elemental device for the indicating device. Normally, a plurality of such light-emission bodies are embedded in a block. However, khese bodies are not connected in advance. Therefore, it is required to connect each independently embedded body using lead wires, needing tedious work. Where the block does not comprise electric insulation, electric parts of the light-emission 1~,~' ~ ~
$
body are to be embedded, not covered with the resin, and the lead wires for connection must be electrically insulated, hich used to restrict operation site as a matter of disadvantage.
According to one aspect of the invention there is provided a series of indication lamps, for use in buried state in a road, a concrete structure or the like, having a plurality of light-emission bodies connected at suitable intervals by means of electrically insulated lead wires in a current-conducting manner, each of said light-emission bodies comprising a light-emitting diode embedded in a transparent resin in such a manner that a light-transmissible upper face of the resin becomes a light-emitting face, a lower face and most of outer periphery of each of the light-emission bodies being entirely covered enbloc with an insulation material except for an upper par to ensure complete insulation of the light emission body, and further said light emitting bodies each having a step part formed on the outer periphery.
The preferred embodiment of the present invention provides a light emission body comprising a light-emitting diode embedded in a transparent resin in such a manner that the upper face of the resin becomes a light-emitting face.
The preferred embodiment of the present invention also arranges a plurality of the light-emission bodies with suitable intervals and connects the bodies using electrically insulated lead wires in a current conducting manner.
The preferred embodiment of the present invention further covers the lower surface and outer side of the light-emission body with an insulation material, leaving an outer part of the upper side uninsulated.
~ - 2 -The preferred embodiment of the present invention again provide a string-shaped indication lamp by forming a step part in the outer periphery of the light-emission body.
Said step part may be formed by the upper end face of said insula-tion or a spring e~uipped in the outer periphery of the liyht-emission body.
The present invention will be further illustrated by way oE
the accompanying drawings in which:
Fig. 1 is a perspective view of an embodiment of the string-lo shaped indication lamp according to the present invention.
Fig. 2 shows a perspective view of the - 2a -~9~ 9 light-emission body.
Figs. 3, 4 and 5 shown an example of the manufacturing process for the string-shaped indication lamp according to the present invention.
Fig. 1 shows a string-shaped indication lamp comprising a light-emission body 1, a lsad wire 2, and an insulation material 3.
The light-emission body 1 comprises a main cylindrical body la made of a light-transmissible resin and necessary electrical materials equipped underneath the main body la, in which said main body la is provided with an embedded light-emitting diode lb with its upper face working as a light-emitting face as known while said electrical materials comprising for example a resistance 4 and a lead wire 5.
The shape of the main body may not always be a cylinder but may be a square column or a flat irregular shape. Each light-emission body 1 is connected together by joining an insulated lead wire 2 with each outlet wire 5. Consequently, the indication lamp of the present invention is formed generally in a string shape and installed with intexvals in-regard to a construction in which the lamp is embedded. In addition, various advantages are realized with ,J` ';~
-` ~Z~6~}~
the indication lamp manufactured according to the present invention, different from those lamps fixed on a base plate, etc. as known in the prior art, such as higher flexibility and that a plurality of light-emission bodies can be arranged uniformly even on a curved or rugged surface.
The light-emission body 1 is covered with an insulated material except for its upper face and a part of the outer periphery. The upper face of the covering 3 forms a step part 3a towards the outer periphery of the light-emission body 1.
This step part may be formed by providing a spring of square section in the outer periphery of the main body r~se /~
la i~ of -the light-emission body 1. At that time, the covering 3 may be done only to a part butting to the spring.
With this step part 3a equipped, a plurality of the light-emission bodies 1 can be embedded at one time by means of this step part 3a equipped, while the upper parts of the plural light-emission bodies being set in a mold form.
The range of the outer periphery of the light-emission body 1, to be covered with the covering 3, may be approximately one-half of the total heigh-t of the main body la. Conducting parts of the string-shaped indication lamp according to the present invention are totally covered with an insulation material. Therefore, safety of operation is assured even where the lamp is embedded in a composi-te agent containing moisture such as a concrete construction. The number of light-emission bodies in this string-shaped indication lamp is not limited by any restrictions other than ~2~
those applicable to this kind of indication lamp.
An example of manufacturing the foregoing string-shaped indication lamps is shown in the following paragraphs.
First, the light-emitting diode lb is embedded with i-ts upper face to work as a ligh-t-emitting face, in a main body la in which a necessary outlet wire 5 is arranged in its lower face while connecting a resistance 4, etc. to the main body la comprising light-transmissible resin. This light-emission body 1 is set on an assembling base plate 7 with a circular cutting line 8 for separation as shown in Fig. 3 so that the light-emission body 1 is located at the center of the circular cutting line 8. A lead wire 2 is connected to the outlet wire e~uipped at the lower face of the light-emission body 1 by soldering. Next, each light-emission body 1 is separated along the cutting line 8, together with a part 7a of the assembling base plate within the cutting line. Individual light-emission bodies 1 are set in a mold form 6 shown in Fig. ~, inversely as shown in Fig. 5. An insulating resin is poured from a gap between the mold form 6 and the light-emission bodies 1. The resin is hardened while integrating the covering 3. Thus, the assembly of the string-shaped indication lamp is completed by pulling out the assembly from the mold after the resin is completely cured.
Claims (6)
1. A series of indication lamps, for use in buried state in a road, a concrete structure or the like, having a plurality of light-emission bodies connected at suitable intervals by means of electrically insulated lead wires in a current-conducting manner, each of said light-emission bodies comprising a light-emitting diode embedded in a transparent resin in such a manner that a light-transmissible upper face of the resin becomes a light-emitting face, a lower face and most of outer periphery of each of the light-emission bodies being entirely covered enbloc with an insulation material except for an upper part to ensure complete insulation of the light emission body, and further said light emitting bodies each having a step part formed on the outer periphery.
2. The series of indicated lamps according to Claim 1, wherein said step part is formed by an upper end face of said insulation material covering the outer periphery.
3. The series of indication lamps according to Claim 1, wherein said step part is formed by a projection cross-sectionally square provided on the outer periphery of the light-emission body.
4. An indication lamp to be buried in a surface of a concrete structure or the like, said indication lamp comprising:
a light emitting diode;
a transparent resin body containing said light emitting diode therein and having bottom, side and upper surfaces;
a pair of lead wires attached to said light emitting diode; and an insulation cover directly covering substantially all of said bottom and side surfaces of said transparent resin body except for a small portion of said side surface in the vicinity of said upper surface of said transparent resin body, wherein said pair of lead wires extend out of said insulating cover in opposite directions.
a light emitting diode;
a transparent resin body containing said light emitting diode therein and having bottom, side and upper surfaces;
a pair of lead wires attached to said light emitting diode; and an insulation cover directly covering substantially all of said bottom and side surfaces of said transparent resin body except for a small portion of said side surface in the vicinity of said upper surface of said transparent resin body, wherein said pair of lead wires extend out of said insulating cover in opposite directions.
5. The indication lamp according to Claim 4, wherein an upper end portion of said insulation cover forms a step portion.
6. The indication lamp according to Claim 4, wherein said transparent resin body has a projection where said insulation cover abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555006A CA1298609C (en) | 1987-12-21 | 1987-12-21 | String-shaped indication lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555006A CA1298609C (en) | 1987-12-21 | 1987-12-21 | String-shaped indication lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1298609C true CA1298609C (en) | 1992-04-07 |
Family
ID=4137115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000555006A Expired - Lifetime CA1298609C (en) | 1987-12-21 | 1987-12-21 | String-shaped indication lamp |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1298609C (en) |
-
1987
- 1987-12-21 CA CA000555006A patent/CA1298609C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |