JP5213259B2 - Kitchen lighting system - Google Patents

Description

  The present invention relates to a kitchen lighting system, and more particularly to a kitchen lighting system that can be attached to a sink.

  In general, kitchen lighting is provided under the shelf and the like, and the work table is efficiently illuminated. However, in recent years, so-called island-type kitchens provided at positions away from the wall surface are increasing, unlike I-type and L-type kitchens installed on the wall surface. Conventionally, in an island type kitchen, it has been necessary to hang the kitchen lighting fixture from the ceiling or embed it in the ceiling. In addition, because the island kitchen does not have a shelf due to installation restrictions, it is difficult to install the under-shelf lighting. Also, it is not aesthetically pleasing to hang from the ceiling, and the efficiency is very poor because the distance between the luminaire and the irradiation surface becomes long. In addition, island-type kitchens are often used for parties and the like, and are often used with the overall lighting suppressed.

On the other hand, the sterilization effect by ultraviolet rays is widely known, and the use of an ultraviolet lamp as a sterilization facility in a sanitary facility room has been proposed (Patent Document 1).
In the said invention, it becomes possible to sterilize generation | occurrence | production and propagation of various germs in hygiene equipment rooms, such as a kitchen, by ultraviolet irradiation.

: JP 2001-112855 A

As described above, in the form of an island kitchen that does not have a shelf, it is necessary to hang the kitchen lighting fixture from the ceiling or embed it in the ceiling. However, hanging from the ceiling is not aesthetically pleasing, and embedding in the ceiling has a problem that the efficiency is very poor because the distance between the lighting fixture and the irradiation surface becomes long.
Therefore, there is a need for a lighting fixture that efficiently irradiates the work surface without detracting from aesthetics.
Moreover, although the sterilizing effect by ultraviolet rays is widely known, since it has a very strong influence on the human body, it has not been actively used even in kitchens where the most sanitary aspect is concerned from the viewpoint of safety. Irradiation within drainage grooves and storage boxes is considered, but widespread use such as cutting boards, kitchen knives, cloth widths, tarais, and draining nets is also required.
Therefore, the request | requirement of ensuring a safety | security and irradiating an ultraviolet-ray to various tools is also increasing.

This invention is made | formed in view of the said situation, and it aims at providing the lighting system for kitchens which can irradiate a work surface efficiently, without detracting from aesthetics.
Moreover, an object of this invention is to provide the lighting system for kitchens which can implement | achieve wide range ultraviolet sterilization.

Accordingly, the kitchen lighting system of the present invention includes a lighting fixture that is attached to a sink and irradiates the sink and a workbench close to the sink, and a reflection unit that is mounted in the vicinity of the workbench. The lighting fixture emits light from the inner surface of the sink toward the reflecting portion, and the work table is irradiated with light by the reflected light from the reflecting portion.
According to this configuration, the reflecting part is provided in the vicinity of the work table, the luminaire irradiates light from the inner surface of the sink toward the reflecting part, and the work table emits light by the reflected light from the reflecting part. Since it is irradiated, the lighting fixture can be arranged without restriction such as hanging from the ceiling side, and hand illumination can be efficiently realized by irradiation from a short distance of the lighting fixture. Installation restrictions for lighting fixtures, particularly the island type, which has been a serious problem in conventional kitchen lighting systems, are difficult to install, and the distance between the work surface and the lighting fixtures becomes long, making it inefficient for local lighting. This point can also be reliably resolved.

Moreover, in this invention, in the said lighting system for kitchens, the said reflection part has what has a mirror surface shape which consists of a concave surface or a convex surface, and can change the direction of the normal line which passes along the center of the said reflection part.
According to this configuration, the central illuminance can be increased by concentrating and concentrating. Moreover, wide area | region can be irradiated by diffusing by setting it as a convex surface shape. Moreover, the position of the highest illuminance can be adjusted by adjusting the normal passing through the center of the reflecting portion.

Further, in the present invention, in the kitchen lighting system, the lighting fixture is configured to be switchable between visible light and ultraviolet light, and is a detachable light-shielding block that blocks light from the lighting fixture toward the reflecting portion. Including the part.
According to this configuration, by providing the light-shielding portion, it is possible to ensure safety and to irradiate ultraviolet light into the sink, and to exhibit a bactericidal action.

Moreover, in this invention, in the said lighting system for kitchens, as for the said lighting fixture, the said light-shielding part is comprised with the reflective member, and it can reflect, without weakening the said ultraviolet light intensity | strength.
According to this configuration, since the ultraviolet light is reflected a plurality of times by the reflective member having a high reflectance, the sterilizing action of the ultraviolet rays can be effectively utilized to the maximum extent.

  Further, in the present invention, in the kitchen lighting system, the light source of the lighting fixture is a discharge lamp, and is attached to the discharge unit and the discharge unit so as to be rotatable, and includes a surface including the shaft of the discharge unit. It includes a semi-cylindrical surface composed of divided fluorescent screens, which can switch between visible light and ultraviolet light by switching between a fluorescent surface that emits visible light and a non-fluorescent surface that emits ultraviolet light.

As described above, according to the present invention, the reflector is provided in the vicinity of the work table, the lighting fixture emits light from the inner surface of the sink toward the reflector, and the work table is the reflector. Because the light is irradiated by the reflected light from the ceiling, lighting fixtures can be placed without restrictions such as hanging from the ceiling side, and it is possible to realize hand illumination efficiently by irradiation from a short distance of the lighting fixtures It becomes.
In addition, the lighting fixture is configured so that it can switch between visible light and ultraviolet light, and the ultraviolet light is reflected multiple times by a reflective member with high reflectivity, so that the ultraviolet light sterilization effect is maximized. It is possible to provide a clean and productive kitchen that can be used.

Schematic diagram showing the kitchen lighting system according to Embodiment 1 of the present invention (in use) Schematic diagram showing the kitchen lighting system of Embodiment 1 of the present invention (when not in use) The figure which shows the lighting fixture of the lighting system for kitchens of Embodiment 1 of this invention The figure which shows the reflection part of the lighting system for kitchens of Embodiment 1 of this invention. The figure which shows the reflection part of the lighting system for kitchens of Embodiment 1 of this invention. The figure which shows the modification of the lighting fixture of the lighting system for kitchens of Embodiment 1 of this invention. Schematic diagram showing a kitchen lighting system according to Embodiment 2 of the present invention (when not in use) Schematic diagram showing the kitchen lighting system according to Embodiment 2 of the present invention (when in use) The figure which shows the lighting fixture of the lighting system for kitchens of Embodiment 2 of this invention The figure which shows the lighting fixture of the modification of the lighting system for kitchens of Embodiment 2 of this invention. The figure which shows the lighting fixture of the modification of the lighting system for kitchens of Embodiment 2 of this invention. The figure which shows the lighting fixture of the lighting system for kitchens of Embodiment 3 of this invention The figure which shows the lighting fixture of the lighting system for kitchens of Embodiment 3 of this invention The figure which shows the shape and light distribution characteristic of the reflection part of the lighting system for kitchens of Embodiment 4 of this invention The figure which shows the shape and light distribution characteristic of the reflection part of the lighting system for kitchens of Embodiment 4 of this invention The figure which shows the shape and light distribution characteristic of the reflection part of the lighting system for kitchens of Embodiment 4 of this invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
The schematic diagram which shows the system configuration | structure of the lighting system for kitchens of Embodiment 1 of this invention is shown in FIG. 1 and FIG. FIG. 1 shows a state when the kitchen is used, and FIG. 2 shows a state when the kitchen is not used.
The kitchen lighting system includes a sink 100, a work table 200 close to the sink 100, and a lighting fixture 10 that is attached to the sink 100 and irradiates the sink 100 and the work table 200. The lighting device 10 irradiates light from the inner surface of the sink 100 toward the reflection unit 20, and the work table 200 and the sink 100 are connected from the reflection unit 20. It is comprised so that light can be irradiated by reflected light of. 300 is a gas stand.
When the kitchen is not in use, as shown in FIG. 2, the sink 100 is provided with a light-shielding portion 102 that is detachably attached, and the sink 100 is shielded by the light-shielding portion 102. 101 is a water tap.

Here, a discharge lamp is used as the lighting fixture 10. FIG. 3 shows the lighting fixture 10. This luminaire 10 includes a discharge lamp 1, a reflecting plate 2 that reflects light from the discharge lamp, a louver 3 that adjusts light, and a front glass 4 for waterproofing, and a mercury emission line (ultraviolet ray: 254 nm). White light (visible light) is emitted by exciting the phosphor. Here, 5 is the central axis of the reflector. Here, ultraviolet rays are emitted in a state where the phosphor is not applied. When the discharge lamp 1 emits ultraviolet light having a bactericidal action, the discharge lamp uses ultraviolet light (254 nm).
Further, in this lighting fixture 10, quartz glass (transmitting through a wavelength range of 200 to 2500 nm) is attached as the waterproof front glass 4, so that the lighting fixture 10 used in the sink is sufficiently waterproof. . Moreover, the glass is sufficiently transparent to ultraviolet rays. And it has the structure where the lighting fixture 10 was embedded in the sink inner wall so that the surface of this waterproof front glass 4 and a sink inner wall surface may correspond.
In addition, the louver 3 is a plate obtained by assembling a long and narrow plate called a wing plate in parallel to form a plate shape, and the direction of light is controlled by the mounting angle of the wing plate. Is directed to the reflecting portion 20.

Furthermore, as shown in FIGS. 4A to 4C, the reflection portion 20 is made of a highly reflective material formed by mirror-polishing an aluminum plate, and can be adjusted in position and orientation from the inside of the sink. It is configured to reflect visible light. Thus, the light guide efficiency is increased by using a highly reflective material as the reflective material. Here, FIGS. 4A to 4C are a front view, a rear view, and a side view of the reflecting portion 20, and the reflecting material 21 that is mirror-finished is attached to the support base 23 via the two support legs 22. The two support legs 22 are attached so that the angle with respect to the support base 23 can be adjusted by an angle adjustment knob 24, respectively. The support base 23 is attached to the work table 200 by a support bar 25. Here, the support bar 25 can be rotated by a rotation adjusting knob 26. 27 is a vertical stopper, and 28 is a horizontal stopper. The vertical stopper 27 and the horizontal stopper 28 are fixed to the reflector 21 by welding or the like, and the support leg 22 is sandwiched between the vertical stopper 27 and the reflector 21. Further, the horizontal stopper 28 fixes the vertical direction of the vertical stopper 27.
In this manner, the support base 23 fixes the height of the reflecting material 21 and the like and rotates around the support rod 25. The rotation adjustment knob 26 can tilt the vertical direction of the central portion of the reflection surface by a desired angle with respect to the light emitting surface of the lighting fixture.
Further, the vertical direction of the central portion of the reflection surface can be tilted with respect to the work table 200 by the angle adjustment knob 24 or the like.

  FIG. 5 is a view showing a state in which the angle adjustment knob 24 is inclined toward the work table. By tilting the reflector 21 in this way, light from the lighting fixture 10 using the discharge lamp 1 can be efficiently guided to the work table side.

  The light-shielding part 102 is a plate-like body that has been subjected to a high reflection treatment, and hardly attenuates light rays. Therefore, the light-shielding part 102 is repeatedly reflected multiple times, and UV rays are efficiently applied to the target (mold, scale, odor source, etc.) Irradiate. The light-shielding portion is made of aluminum coated with magnesium fluoride (MgF2) or the like in consideration of a decrease in reflectance due to oxidation, and uses a material that maintains a high reflectance with respect to a wavelength of 250 to 400 nm. The light-shielding portion 102 has a sink lid shape and is housed in a bellows structure when not in use (the housing structure will be described later).

In the first embodiment, the discharge lamp is used as the light source. However, the present invention can also be applied to a lighting apparatus using an LED as shown in FIG.
This lighting fixture is configured such that light emitted from the resin-sealed LED element 11 is led out through the condenser lens 12 and is used in the sink. Arranged in a housing 13 fitted with a front glass 14. Also in this case, it is desirable to have a structure embedded in the sink inner wall in the vicinity of the upper edge of the sink so that the waterproof front glass 14 and the inner wall surface of the sink coincide. Moreover, you may make it arrange | position a movable mirror in a lighting fixture so that the emission direction of the light from the LED element 12 can be adjusted.

  The LED element 11 used here may be white light mixed with RGB-LED, blue light (445 nm) and white light mixed with yellow phosphor, or blue LED or ultraviolet LED (365 nm). And white light mixed with phosphors excited at 350 to 390 nm may be used.

In the case of emitting ultraviolet light having a bactericidal action, the discharge lamp may use ultraviolet light (254 nm), and the LED may use ultraviolet light (365 nm). The LED may not be able to emit 254 nm, which has a high bactericidal effect due to its composition, but in recent years Tokushima University has confirmed the bactericidal effect with LED ultraviolet light (365 nm).
Moreover, it is necessary to use quartz glass (transmitting a wavelength range of 200 to 2500 nm) as a glass that transmits ultraviolet rays, and the lighting fixture in the sink must be waterproof.

Moreover, although the reflecting material 21 used for a reflection part may be a flat plate, if it has an uneven surface, it can have condensing and diffusing characteristics. Further, the reflecting material 21 can be made of a thin aluminum plate or the like, curved within the elastic deformation range, and the reflecting surface can be deformed into a concave shape or a convex shape with respect to the front direction. A stress is applied to the central portion of the reflecting surface toward the back surface, and the entire surface is deformed to form a concave shape. If stress is applied to the front surface, a convex shape is obtained. The reflection surface itself may be uneven.
In addition, by making the reflecting surface (mirror surface) deformable and rotatable from a concave surface to a convex surface, light distribution from the light collecting system to the diffusing system can be realized, and rotation of the optical axis can also be realized.

(Embodiment 2)
FIG. 7 is a schematic diagram showing a system configuration of a kitchen lighting system according to Embodiment 2 of the present invention, and FIG. 8 is a cross-sectional view thereof.
This kitchen lighting system switches between visible light and ultraviolet light by using the discharge lamp shown in FIGS. 9A and 9B as a lighting fixture.
Here, the light shielding member 1021 of the light shielding unit 102 attached to the sink 100 is detachable. For example, when the sink is used, the light shielding member 1021 is housed in the sink 100 in a roll shape, and as shown in FIGS. The light shielding material 1021 is configured to be pulled out when the sink is not used. Furthermore, in order to ensure safety, ultraviolet light is emitted only after confirming the opening / closing of the light shielding material. This opening / closing may be manual or automatic by a switch (not shown) operated by the opening / closing confirmation sensor 103.

In addition, it can reflect many times, without weakening the intensity | strength of an ultraviolet-ray by giving a high reflection process to the sink opposing surface of a light shielding material. The inner surface of the sink is also mirror-finished, and it is possible to efficiently irradiate the target with ultraviolet rays simply by installing a wide range of items such as sanitized slabs, kitchen knives, cloths, raisins and draining nets.
In particular, in a system kitchen having two sinks, workability is greatly improved by mounting such a lighting fixture on the sub-sink.

When the luminaire that emits ultraviolet light is a discharge lamp, the discharge lamp is composed of a bulb that is not coated with a phosphor, and a cross-sectional view and a front view are shown in FIGS. 9 (a) and 9 (b). A visible light cover 6 coated with or containing a phosphor is mounted. The phosphor is excited by ultraviolet rays emitted from the discharge lamp, and visible light is emitted from the visible light cover. When the light shielding material is in a closed state, the visible light cover 6 slides, so that the ultraviolet light from the discharge lamp 1 is directly irradiated into the sink.
The excitation wavelength of the phosphor applied or contained in the visible light cover 6 is mainly composed of 254 nm.
Others are formed in the same manner as in the first embodiment, but the description is omitted here.

  According to this configuration, it is possible to switch between visible light and ultraviolet light by attaching / detaching the visible light cover 6 even in the I-type system kitchen by attaching it in the sink without attaching a lighting fixture to the wall surface. When the light shielding material 102 is opened, visible light is output from the visible light cover 6, and when the light shielding material is closed, the visible light cover 6 slides. Thus, the ultraviolet light from the discharge lamp 1 is directly irradiated into the sink. Therefore, the sterilization in the sink and the illumination of the work table are performed efficiently.

In the second embodiment, the case where a discharge lamp is used as the light source has been described. However, the present invention can also be applied to a lighting apparatus using an LED as shown in an example of a front view in FIG.
This lighting fixture is also configured such that light emitted from the resin-sealed LED element 11 is led out through a condenser lens (not shown), and the visible light cover 6 is detachably mounted. ing. Here again, as in the first embodiment, since it is used in the sink, it is disposed in a housing fitted with a waterproof front glass, similar to the discharge lamp lighting fixture.
Further, as shown in FIG. 11, the visible light LED 11a and the ultraviolet light LED 11b may be used without using the visible light cover 6.
With this configuration, light with a desired wavelength can be efficiently irradiated.

By the way, when the lighting fixture which radiates | emits an ultraviolet-ray is an LED element, it has been said that the LED element cannot logically output the 254 nm high energy spectrum conventionally used as having an ultraviolet sterilization effect. However, in recent years, a bactericidal action by a spectrum around 365 nm has been confirmed. As an effect, it was confirmed that about 100% of Vibrio parahaemolyticus was killed in 10 minutes and about 80% or more of Salmonella and pathogenic Escherichia coli were killed in 30 minutes.
Therefore, an ultraviolet LED element having a dominant wavelength of around 365 nm is used, and the visible light cover 6 is coated with or contains a phosphor excited at 365 nm. Light can be emitted in the same manner as discharge lamp illumination.
Furthermore, since the LED element is small, the ultraviolet LED 11b and the visible light LED 11a may be provided side by side as shown in FIG.

(Embodiment 3)
The third embodiment of the present invention is characterized by the discharge lamp in the kitchen lighting system. FIGS. 12 and 13 are sectional views of the discharge lamp when emitting visible light and when emitting ultraviolet light.
In this embodiment, a phosphor corresponding to half of the bulb is applied to the inside of the discharge lamp, and a hemispherical phosphor 8 is rotatably mounted as a first semi-cylindrical body. As shown in FIG. 13, the phosphor 8 is arranged on the optical path, and ultraviolet rays are emitted as shown in FIG.

  That is, this luminaire is a semi-cylindrical body composed of a phosphor 8 that is rotatably attached to the discharge portion and the discharge portion, and is formed in a half of a region divided by a plane including the axis of the discharge portion. The light-emitting surface can be switched between visible light and ultraviolet light by switching between a fluorescent surface that emits visible light and a non-fluorescent surface that emits ultraviolet light.

When a discharge lamp is to be used as a lighting fixture that emits ultraviolet light, a phosphor is uniformly applied to the inner surface of a conventional general visible light discharge lamp. The inside of the discharge lamp contains mercury, the mercury is excited by electrons, the phosphor is excited by the mercury emission line mainly composed of 254 nm, and visible light is emitted. Therefore, by applying the phosphor to about half the region divided in the longitudinal direction of the bulb inner surface, when visible light is emitted, the bulb coated with the phosphor on the inner surface is directed toward the luminaire emission surface side. When the ultraviolet light is emitted, the discharge lamp is rotated with the central axis in the longitudinal direction as the central axis of rotation so that the bulb on which the phosphor is not applied on the inner surface is directed toward the light emitting surface.
With the above configuration, resource saving and low cost can be realized with a small number of parts.

(Embodiment 4)
Embodiment 4 of the present invention is characterized by the reflection part in the kitchen lighting system, and examples of use are shown in FIGS.
In the present embodiment, the reflecting surface of the reflecting member 21S of the reflecting portion 20 is configured by a curved surface, and the direction of the reflecting surface with respect to the normal line can be changed. As shown in FIG. 14, by making the reflecting surface of the reflecting material 21 </ b> S into a concave shape, the light from the luminaire can be collected and the central illuminance can be increased. On the other hand, as shown in FIG. 15, a wide area can be irradiated by diffusing the reflecting surface of the reflecting material 21S in a convex shape. Also, the direction of the normal can be adjusted as shown in FIG.
Here, the light distribution represents a light intensity distribution in each direction of the light source or the lighting fixture. This time, the reflection surface is replaced with a light source, and the luminous intensity distribution in each direction from the reflection surface is shown. The light distribution curve in the figure is on the vertical plane with respect to the reflecting surface parallel to the support that passes through the optical axis from the instrument (in the optical system, it represents a virtual light beam that is representative of the light beam that passes through the entire system). Concatenated with the same intensity.

By making the reflecting surface concave, the light from the luminaire can be collected and the central illuminance can be increased. A wide area can be irradiated by diffusing the reflecting surface in a convex shape.
Further, the direction of the optical axis can be changed by changing the direction of the reflecting surface (the direction of the vertical line passing through the center of the reflecting portion).
Here, A indicates an optical axis, B indicates a light distribution characteristic, and L indicates a normal line.

  For example, as the reflecting material 21S of the reflecting section 20, a mirror film processed by forming a metal film on an elastic resin can be used to switch between a concave shape and a convex shape.

  In addition, although the lighting system for kitchens was demonstrated in the said embodiment, the application to the sterilization equipment of an instrument in a hairdressing salon or a hospital etc. is also possible. For example, even in a sink that does not have a cooking function, UV irradiation can be performed with a razor, scissors, comb, etc. placed in the sink, and it can be installed in a place where there is no wall surface. It can be installed without damage.

  As described above, according to the present invention, the present invention can be applied to kitchen lighting systems, in particular, island-type kitchens, sterilization lamps for hairdressing and beauty instruments, and medical instruments.

1 Discharge lamp 2 Reflector 3 Louver
4 Waterproof front glass 5 Reflector central axis 6 Visible light cover 8 Phosphor 10 Lighting fixture 11 LED element 12 Condensing lens 13 Housing 14 Waterproof front glass 20 Reflector 21 Reflector 22 Support leg 23 Support base 24 Angle Adjustment knob 25 Support rod 26 Rotation adjustment knob 27 Vertical stopper 28 Horizontal stopper 100 Sink 101 Faucet 102 Shading part 103 Opening / closing confirmation sensor 200 Work table 300 Gas table

Claims (5)

A lighting system for a kitchen having a lighting fixture attached to a sink and irradiating the sink and a workbench close to the sink,
Comprising a reflective part mounted in the vicinity of the work table, the lighting fixture irradiates light from the inner surface of the sink toward the reflective part,
The work table is a kitchen lighting system in which light is reflected by reflected light from the reflecting portion. The kitchen lighting system according to claim 1,
The said reflection part is a lighting system for kitchens which has a mirror surface shape which consists of a concave surface or a convex surface, and can change the direction of the normal line which passes along the center of the said reflection part. The kitchen lighting system according to claim 1,
The said lighting fixture is comprised so that switching of visible light and ultraviolet light is possible, The lighting system for kitchens provided with the removable light-shielding part which shields the light from the said lighting fixture which goes to the said reflection part. The kitchen lighting system according to claim 3,
The kitchen lighting system, wherein the light-shielding part is made of a reflective member and can be reflected without weakening the ultraviolet light intensity. The kitchen lighting system according to claim 4,
The light source of the luminaire is a discharge lamp,
A semi-cylindrical surface composed of a fluorescent screen that is pivotally attached to the discharge portion and the discharge portion, and is divided by a plane that includes the axis of the discharge portion,
A kitchen lighting system that can switch between visible light and ultraviolet light by switching between a fluorescent surface that emits visible light and a non-fluorescent surface that emits ultraviolet light.

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