JPH10208540A - Stairs with built-in lighting - Google Patents

Abstract

(57) [Summary] [Problem] To provide a new stair with built-in lighting that can be constructed more easily in a short period of time, performs lighting suitable for climbing and descending the stairs, and secures safety at the feet. I do. A climbing light source, a descending light source, and a hollow surface light emitting unit to which light from the rising light source is incident are provided in a step board (5) of the stairs. Having a diffuser and a light reflector, when ascending the stairs, the light from the ascending light source is emitted from the upper surface of the hollow surface light emitting unit to perform surface light emission on the tread plate upper surface, and when descending the stairs The light from the descending light source illuminates the lower stage than the stage provided with the light source.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase with built-in lighting. More specifically, the present invention relates to a new staircase with built-in lighting, which can perform lighting suitable for climbing and descending the stairs.

[0002]

2. Description of the Related Art Conventionally, indoor lighting fixtures have been attached to walls and ceilings such as stairs and corridors provided in buildings such as houses. However, it is not possible to illuminate the area around the feet, such as the stairs, brightly to the corners only by the illumination from above with such a lighting fixture. In recent years, many houses have a high ceiling for producing a large room, and the area around the feet of such a house becomes even darker.

Although it is conceivable to use a light source with a large wattage, the light from the light source with a large wattage is very dazzling and sometimes causes discomfort. This is not a preferable method because it generates extremely high heat and may cause a fire or the like. Therefore, it has been studied and practiced to embed a small lighting fixture under the stairs or the lower part of the wall of the corridor to illuminate the area around the feet.

FIG. 10 shows an example of such a conventional lighting fixture. In the example of FIG. 10, the stairs (a) are illuminated by a plurality of small lighting fixtures (c) embedded in the wall surface (a).

[0005]

However, in such a conventional method of arranging a plurality of small luminaires, it is necessary to illuminate the stairs ascending and descending in the same manner, and the method is retrofitted to a wall surface. Was bad. In addition, installation of multiple lighting fixtures on the wall requires complicated work such as drilling of the wall and heat countermeasures, etc., which must be performed at multiple locations at the site. It will be something.

Further, since electric work such as electric wiring connection is usually performed by an electrician and carpenter / interior work such as drilling is performed by a carpenter / interior work, a plurality of specialized works are required. There was also a problem that the construction period was further extended due to schedule adjustment. The present invention has been made in view of the above circumstances, solves the conventional problems, can be more easily implemented in a short time,
The purpose is to provide a new stair with built-in lighting that provides lighting suitable for climbing and descending stairs.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by providing a light source for ascending, a light source for descending, and a hollow surface on which light from the light source for ascending is incident in a tread portion of a staircase. A light-emitting portion, the hollow-surface light-emitting portion has a light diffuser and a light reflector, and light from a rising light source is emitted from the upper surface portion of the hollow-surface light-emitting portion when climbing a staircase. Surface illumination is performed on the upper surface of the tread plate portion, and when descending the stairs, light from the descending light source illuminates a step below the step where the light source is provided. .

According to the present invention, in the above-described stairs with built-in lighting, the ascending light source and the hollow surface light emitting portion are provided above the tread portion, and the descending light source is provided below and in the tread portion. In addition, the hollow-surface light-emitting part has an upper surface that reflects or refracts incident light depending on the incident angle.
It is formed by a light diffuser that transmits light, and its lower surface and side surfaces are formed by a light reflector that reflects incident light, and on the upper surface of the hollow surface light emitting unit, a milky sheet is attached. It is preferable that the louver film is provided on the light emitting surface of the descending light source.

Still further, according to the present invention, the above-mentioned stairs with built-in lighting are provided with a human body detection sensor for detecting a human body, a first human body detection sensor is provided near the bottom of the stairs, and a first human body detection sensor is provided near the top of the stairs. A two-body detection sensor is provided, and the ascending light source and the descending light source are controlled to operate according to detection by the first and second human body detection sensors. The rising light source is turned on when a human body is detected earlier than the two human body detection sensors, and the descending light source is turned on when the second human body detection sensor detects a human body before the first human body detection sensor. And the first human body detection sensor and the second human body detection sensor are each constituted by a plurality of juxtaposed sensors. The ascending light source is turned on when each sensor detects in the same direction as the rising direction of the stairs, and the descending light source is turned on when each sensor detects in the same direction as the descending direction of the stairs It is also preferable that a brightness sensor for detecting brightness is provided, and that each light source is turned on simultaneously with a detection signal from the human body detection sensor and a detection signal from the brightness sensor. And

[0010]

Embodiments of the present invention will be described below in more detail with reference to the accompanying drawings.

[0011]

FIG. 1 shows an embodiment of a staircase with built-in lighting according to the present invention. FIG. 2 is an enlarged perspective view illustrating the structure inside the tread plate in the stairs with built-in lighting of FIG.
The lighting built-in staircase (1) of the present invention illustrated in FIGS. 1 and 2 has a rising light source (6) and light from the rising light source (6) incident on an upper portion in a tread plate (5). And a light source for descending (8) below and in the front. As the rising light source (6) and the falling light source (8), for example, a fluorescent lamp or the like is used.

FIG. 3 is an enlarged cross-sectional view of the AA section shown in FIG. 2. As illustrated in FIG. 3, the hollow surface light emitting section (7) has an upper surface where light ( 12) is formed by a light diffuser (10) that reflects, refracts, or transmits the light according to the incident angle, and its lower surface and side surfaces are formed by a light reflector (9) that reflects the incident light (12). ing. A semicircular reflector (11) is provided around the ascending light source (6) so that, for example, light (12) from the ascending light source (6) is efficiently incident on the hollow surface light-emitting portion (7). May be provided.

The light diffuser (10) forming the upper surface of the hollow surface light-emitting portion (7) is made of, for example, an acrylic plate (13), a prism (14), a polycarbonate plate, as shown in FIG. A prism (14) is provided on an acrylic plate (13), and a polycarbonate film (15) is provided on the prism (14). This polycarbonate
The upper surface of the film (14) is smooth-finished. Of course, the light diffuser (10) having such a structure has such a strength that it does not hinder walking and the like.

FIG. 5 is an enlarged sectional view of the portion BB shown in FIG. 2. As shown in FIG. 5, the descending light source (8) is a step board ( The louver film (17) is provided below and in front of the tread plate (5) so as to illuminate a step lower than the step (5). In the stairs with built-in lighting of the present invention having such a structure, when the stairs are climbed, the light (12) from the climbing light source (6) is
The light is efficiently incident into the hollow surface light emitting portion (7), and is reflected by the light diffuser (10) on the upper surface thereof and the light reflector (9) on the lower surface and the side surface thereof. 7) is propagated throughout. In parallel with this propagation, of the light (12) incident on the light diffuser (10), only the light (12) incident within a certain incident angle range is
The light is refracted and transmitted by the prism (14) constituting the light diffuser (10), passes through the polycarbonate film (15), is uniformly radiated from the surface of the upper surface of the hollow-surface light-emitting portion (7), and is treaded. ) The upper surface can be uniformly illuminated.

Further, in order to further improve the uniformity of surface light emission, as shown in FIG. 4B, a milky sheet (16) may be attached to the upper surface of the light diffuser (10).
Therefore, by such a surface emitting illumination on the upper surface of the tread portion of the stairs, when climbing the stairs, the light from the light source is prevented from directly entering the eyes without causing discomfort such as glare,
In addition, it is possible to sufficiently secure the brightness so that each step of the stairs can be recognized, and it is possible to perform illumination suitable for ascending the stairs.

Also, when descending the stairs, light (18) from the descending light source (8) is transmitted to the louver film (17).
Radiated to the upper surface of the lower tread. The louver film (17) can control the direction of emission of the light (18) so that the light (18) is collected at the edge portion (51) of the tread plate one step below as illustrated in FIG. .
That is, the illuminance of the edge portion (51) of the tread plate lower than the tread plate on which the descending light source (8) is installed becomes higher than the illuminance of the tread plate further below and the edge portion (51).
And contrast with other parts, and the visibility of the boundary of each step can be improved.

[0017] Therefore, by performing such illumination that emphasizes the edge portion, it is possible to perform illumination suitable for descending the stairs, and it is possible to improve ease of walking and safety. By the way, in the embodiment of FIG.
Along with the staircase with built-in lighting (1) of the present invention, a step lighting system (Japanese Patent Application No. 8-251346) already proposed by the inventor of the present invention is provided on the side plate of the staircase.
As shown in FIG. 7, the foot lighting system (2) includes a light source unit (19) in which a small light source (20) such as an incandescent lamp or a jujube lamp is housed, and a side plate of a stair in a longitudinal direction thereof. And a lighting member (21) having a hollow surface light-emitting portion (22) which is built-in and integrated therewith. The lighting member (21) is connected to the light source unit (19), for example, by abutting. The hollow surface light emitting portion (22) of the lighting member (21) has a light reflector and a light diffuser in the hollow portion, and the light from the light source (20) of the light source unit (19) is transmitted to the light source unit (19). ) From the side of the lighting member (2
The light is supplied to the hollow surface light emitting portion (22) of (1), propagates in the hollow portion in the longitudinal direction, and is uniformly radiated forward from the entire surface of the front portion to illuminate the stairs.

Further, the stairs with built-in lighting of the present invention can include a human body detection sensor for detecting a human body. This human body detection sensor detects the presence of a human body on the stairs, for example, by detecting a change in a heat ray generated when the human body moves. Further, as such a human body detection sensor, a first human body detection sensor and a second human body detection device are provided near the lowermost step and near the uppermost step of the stairs, respectively, according to the detection by the first human body detection sensor and the second human body detection sensor. Alternatively, the ascending light source and the descending light source may be operated.

That is, for example, when the first human body detection sensor detects a human body before the second human body detection sensor, the light source for ascent is turned on, and conversely, the second human body detection sensor is connected to the first human body detection sensor. If a human body is detected earlier than this, control is performed so that the descending light source is turned on. As a result, the lighting at the time of climbing and the lighting at the time of descending can be performed automatically, and a troublesome operation such as an ON / OFF operation of a lighting switch can be omitted, and walking on the stairs can be realized more easily.

In the embodiment shown in FIG. 1, the first human body detection sensor (3) is embedded in the side plate near the lowermost step of the stairs, and the second human body detection sensor (4) is mounted near the uppermost step. The first human body detection sensor (3) and the second human body detection sensor (3) are provided in the light source unit of the foot illumination system (2).
Each of the human body detection sensors (4) is composed of two sensors arranged in parallel.

In the case where the human body detection sensor is composed of a plurality of juxtaposed sensors as described above, as illustrated in FIG. 8, each sensor detects the human body in the same direction as the stair climbing direction. In this case, it is determined that the person goes up the stairs, the light source for climbing lights up, and if each sensor detects in the same direction as the direction of the stairs going down, it is determined that the person goes down the stairs. Alternatively, it may be controlled so that the descending light source is turned on.

Further, the first human body detecting sensor and the second human body detecting sensor are provided with a counting function for counting the number of detected human bodies. For example, as shown in FIG. The rising detection by the counter is set to counter-1, and the subsequent detection of the rising by the second human body detection sensor is set to the counter + 1, so that the counter is controlled to be 0 at the end of the ascending of the stairs. The light is turned off, and at the time of detection of the descent, contrary to the detection of the descent, the detection of the descent by the second human body detection sensor is set to the counter -1, and the detection of the descent by the first human body detection sensor is set to the counter +1. May be controlled so that the counter becomes 0 at the end of the descending, and the descending light source is turned off using the counter 0.

By controlling the light source using the detection by the human body detection sensor, it is possible to automatically turn on and off the light, thereby making it possible to realize a more easy walking and to find a person on the stairs. In this case, only when the power is turned on, unnecessary power consumption can be reduced.
Also, the stairs with built-in lighting of the present invention include
Since a light source and a light-emitting portion are provided, there is no need to bury a small lighting fixture in a wall as in the related art, so that the construction is easy and short, and the fitting in the interior is very good.

Further, for example, a harness connector is connected as a power supply wiring to an electric system such as each light source.
Power can be supplied by this harness connector. Therefore, the construction other than the primary-side power supply can be easily performed only by the carpenter / interior construction worker without the intervention of the electrician, so that the construction period can be further shortened.

Of course, the present invention is not limited to the above-described example, and it goes without saying that various embodiments are possible in detail.

[0026]

As described in detail above, according to the present invention, it is possible to more easily carry out construction in a short period of time, perform lighting suitable for climbing and descending stairs, and secure the safety of feet. A new built-in staircase is provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a staircase with built-in lighting of the present invention.

FIG. 2 is an enlarged perspective view illustrating a structure inside a tread plate in the stairs with built-in lighting of the present invention illustrated in FIG. 1;

FIG. 3 is a sectional view taken along the line AA which illustrates the structure inside the tread of FIG. 2;

FIGS. 4A and 4B are enlarged cross-sectional views illustrating the structure of a light diffuser forming an upper surface of a hollow surface light emitting unit.

FIG. 5 is a sectional view taken along the line BB of the internal structure of the tread shown in FIG. 2;

FIG. 6 is a conceptual diagram illustrating the illuminance when descending a staircase;

FIG. 7 is a perspective view showing an example of a foot lighting system.

FIG. 8 is a diagram illustrating an example of determination control of climbing and descending stairs using detection by a first human body detection sensor and a second human body detection sensor.

FIG. 9 is a diagram illustrating an example of a counting function in the first human body detection sensor and the second human body detection sensor.

FIG. 10 is a perspective view showing an example of a conventional lighting fixture buried under a wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Built-in lighting stairs 2 Foot illumination system 3 1st human body detection sensor 4 2nd human body detection sensor 5 Treadboard 51 Edge part 6 Light source for ascending 7 Hollow surface light emitting part 8 Light source for descending 9 Light reflector 10 Light diffuser 11 Reflector 12 Light 13 Acrylic plate 14 Prism 15 Polycarbonate film 16 Milky sheet 17 Louver film 18 Light 19 Light source unit 20 Light source 21 Lighting member 22 Hollow surface light-emitting part

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H05B 37/02 E04F 11/16 501S

Claims (11)

[Claims] 1. An ascending light source, a descending light source, and a hollow surface light emitting portion to which light from the ascending light source enters are provided in a tread portion of a stair, and the hollow surface light emitting portion is a light diffuser. And a light reflector. When climbing the stairs, the light from the climbing light source is emitted from the upper surface of the hollow surface light emitting unit to perform surface light emission on the upper surface of the tread portion. A stair with a built-in illumination, wherein a step below a step provided with the light source is illuminated by light from the light source. 2. The staircase with built-in lighting according to claim 1, wherein the ascending light source and the hollow surface light emitting portion are provided above the tread portion, and the descending light source is provided below and in the tread portion. . 3. The hollow-surface light-emitting portion has an upper surface formed by a light diffuser that reflects, refracts, or transmits incident light at an incident angle, and a lower surface and side surfaces reflect the incident light. The stairs with built-in lighting according to claim 1, wherein the stairs are provided with a light reflector. 4. The staircase with built-in lighting according to claim 3, wherein an opalescent sheet is attached to an upper surface of the hollow surface light emitting portion. 5. A louver film is provided on a light emitting surface of a descending light source.
Stairs with built-in lighting. 6. The staircase with built-in lighting according to claim 1, further comprising a human body detection sensor for detecting a human body. 7. A first human body detection sensor is provided near the bottom of the stairs, and a second human body detection sensor is provided near the top of the stairs, and the light source for ascending according to the detection by the first and second human body detection sensors. The stairs with built-in lighting according to claim 6, wherein the stairs are controlled to operate. 8. The rising light source is turned on when the first human body detection sensor detects a human body before the second human body detection sensor, and the second human body detection sensor is turned on before the first human body detection sensor. The staircase with built-in lighting according to claim 7, wherein the descending light source is controlled to be turned on when a human body is detected. 9. The first human body detection sensor and the second human body detection sensor are each composed of a plurality of side-by-side sensors. 8. The light source for ascending light is turned on when the sensor detects the light, and the light source for descending light is turned on when each sensor detects the light in the same direction as the descending direction of the stairs. Stairs with built-in lighting. 10. The stairs with built-in lighting according to claim 1, further comprising a brightness sensor for detecting brightness. 11. The staircase with built-in lighting according to claim 10, wherein each light source is turned on simultaneously with the detection signal from the human body detection sensor and the detection signal from the brightness sensor.