JP2022176391A - Door frame with indirect illumination - Google Patents

Abstract

To irradiate a door surface with indirect light to clearly show a gateway door in, for example, a corridor in which a plurality of gateways is arranged.SOLUTION: The present invention provides a door frame in which a tape-shaped illumination 20 is housed, where a plurality of LED light source chips are arranged in a row in an illumination housing space 15 of a frame body frame 11 of an upper frame 10A formed with the illumination housing space 15 whose inner surfaces serve as reflection surfaces 15a to 15c and lower surface has an irradiation opening 17. A right beam R emitted from the illumination 20 can be reflected on the reflection surfaces 15a to 15c and can be softly illuminated as indirect light from the irradiation opening 17 on an upper half part of a door surface 1a.SELECTED DRAWING: Figure 2

Description

There is an application for exception to loss of novelty

The present invention relates to a door frame with indirect lighting, and more particularly to a door frame with indirect lighting that illuminates a door surface with indirect light from LED lighting housed in the door frame.

2. Description of the Related Art Conventionally, in corridors of offices, hotels, condominiums, etc., lighting is designed such that ceiling lights are arranged along the corridors. On the other hand, from the viewpoint of energy saving, consideration of the surrounding environment, and design, instead of uniform lighting with ceiling lighting, a design example in which downlights, etc. are placed at predetermined intervals so as to provide appropriate shadows There is also Along with this, a door frame has also been proposed in which a lighting lamp for illuminating each doorway and the vicinity of the door is accommodated in the door frame in order to clearly indicate the doorway of each room (Patent Documents 1 and 2).

In the frame-integrated lighting door disclosed in Patent Document 1, a ceiling reflector that reflects light emitted from the lighting lamp and illuminates the ceiling surface is provided above the lighting lamp housed in the door upper frame. It is mounted at an angle that illuminates the In addition, a signboard is placed in front of the entrance that is clearly visible by allowing the direct light of the lighting to pass through, and a louver is provided on the lower side of the upper frame to directly illuminate the door surface from above (No. 3). A ballast for turning on the illumination lamp, a dimming device, and the like are also housed in the door upper frame.

The door frame body with an illuminator disclosed in Patent Document 2 has a configuration in which a box containing a light source is attached to a part of the side surface of a door frame member (upper frame), and a light source is attached to the bottom surface of the box. A louver is provided to directly irradiate the light beam from the door side.

JP-A-63-161287 Japanese Utility Model Laid-Open No. 6-16678

The frame-integrated lighting door disclosed in Patent Document 1 is designed so that lighting equipment other than lighting, ceiling reflectors, signboards, etc. are all housed within the door upper frame, so the door upper frame is large. As the size of the frame member increases, the door opening for mounting the frame must also be designed to be larger. In addition, since a signboard is posted on a part of the upper frame and a ceiling reflector that illuminates the ceiling is exposed above the signboard, the design of the door lacks a sense of unity.

In the illuminator butt door frame disclosed in Patent Document 2 as well, it is necessary to attach the box containing the illuminating lamp to a part of the side surface of the door frame member. In addition, since the door frame has a shape in which a part of the door frame protrudes, the design of the door lacks beauty.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems of the prior art, and to provide a compact and durable frame-shaped door frame that is easy to manufacture, and a soft indirect lighting system using LED lighting housed in the door frame. To provide a door frame with indirect lighting capable of clearly indicating an entrance door by irradiating the door surface with light.

The present invention provides a door frame having an inner surface serving as a reflective surface and an illumination housing space having an irradiation opening formed on one surface thereof, wherein a light beam emitted from a belt-shaped light source accommodated in the illumination housing space is reflected by the reflective surface. A part of the door surface is irradiated as indirect light from the irradiation opening by being reflected.

Preferably, the door frame is a door upper frame, and the irradiation opening is formed by opening a lower surface of the lighting accommodation space.

Preferably, the door frame is a vertical door frame, and the irradiation opening is formed by opening a side surface of the lighting accommodation space.

It is preferable that the strip-shaped light source is illumination in which a plurality of LED light source chips are arranged in a row, and is installed along the longitudinal direction in the illumination accommodation space.

It is preferable that the lighting housing space is formed by bending a member of the door frame.

It is preferable that at least one of the reflection surfaces formed on the inner surface of the illumination housing space is bent to form an angle of approximately 45° with respect to the irradiation opening.

It is preferable to attach a light diffusing means to the irradiation aperture.

According to the present invention, the entrance door can be clearly indicated by irradiating the door surface with soft indirect light from the LED lighting housed in the door frame which is easy to manufacture, compact and durable, and a plurality of entrances are arranged. It can contribute to enhancing the spatial design of corridors and the like.

Front view (a) showing an example of fitting of an office door in the door frame of one embodiment of the door frame with indirect lighting of the present invention, side view (b) showing the vertical frame of the door frame from the left side, door frame A plan view (c) showing the upper frame from above, and a cross-sectional view (d) showing a schematic cross-sectional shape of the upper frame and the vertical frame. 1. The partial sectional view which expanded and showed the cross section of the peripheral part of the upper frame of the door frame shown in FIG. 1, and a door upper end. FIG. 2 is a front view showing a state in which the door surface of the office door shown in FIG. 1 is illuminated with indirect light; FIG. 10 is a partial cross-sectional view schematically showing the irradiation state of the door with indirect light according to modified examples ((a) to (d)) of various shapes of the door frame of the present invention. The fragmentary sectional view which expanded and showed the cross section of the vertical frame and its peripheral part in embodiment which accommodates indirect lighting in the vertical frame of a door frame. FIG. 6 is a front view showing a state in which the door surface of the office door shown in FIG. 5 is illuminated with indirect light;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the door frame with indirect lighting of this invention is described with reference to an accompanying drawing.

FIG. 1(a) shows, as an example, an office room of an office, an entrance door of a conference room, and fitting of the door 1 to the door frame 10 from the corridor side. The upper frame 10A and the vertical frame 10B of the door frame 10 of the present embodiment are, as shown in FIGS. surrounds the door 1 on three sides and supports the door 1 via hinges (not shown) so that the door 1 can be opened and closed. The door 1 is a known steel parent-child double door, and a slit glass 2 is fitted on the parent door 1A side.

Inside the frame body frame 11 of the upper frame 10A of the door frame 10, an LED illumination 20 as a belt-shaped light source is accommodated over substantially the entire length of the frame body frame 11 (FIGS. 1(c) and 2). This LED illumination 20 is a known tape-shaped LED in which a plurality of LED chips 21 are arranged on a narrow tape-shaped flexible substrate 22 in a continuous row at predetermined intervals, and the substrate 22 as a whole emits light in a strip shape. The illumination 20 (hereinafter referred to as the tape illumination 20) can be attached to an object with an adhesive tape, or can be laminated with a flexible substrate 22 and a magnetic tape to be magnetically attracted to the metal (magnetic material) surface of the object. can be done. The tape illumination 20 of this embodiment is fixed and held by magnetic adsorption on the bottom plate 13a of the front plate 13 (described later) over substantially the entire width of the door (FIGS. 1A and 2).

FIG. 2 is a partial cross-sectional view showing the cross-sectional shape of the periphery of the interface between the upper frame 10A and the upper end of the vertical frame 10B. The upper frame 10A comprises an upper frame plate 12 joined to the upper end of the vertical frame 10B having a predetermined width and a bottom plate 13a. A front plate 13 having a substantially U-shaped cross section capable of holding a tape lighting 20 thereon, a lighting housing space 15 formed behind the front plate 13 (as seen from the corridor side), and a lower end of the lighting housing space 15. It is composed of a frame body frame 11 manufactured by bending a steel plate so that a door upper face frame part 16 continuing from the door is integrated. The upper frame 10A is held in the wall by a support structure member 25 arranged in the wall above the upper frame 10A, at the upper end of the door upper surface frame 16 and the upper end of the front panel 13, and supported by the supporting structure member 25 shown in phantom lines. A wall decorative panel 26 is attached to the structural member 25 via an unillustrated mounting bracket. As shown in FIG. 2, the door upper surface frame portion 16 covers the upper surface of the door 1 (indicated by phantom lines in the figure) and holds the lower end of the wall surface decorative panel 26 on the room side. Alternatively, the front plate 13 may be omitted, and the frame 11 may be bent to form a portion corresponding to the front plate 13 (a portion corresponding to a front reflector described later).

As shown in FIG. 2, the lighting housing space 15 includes a front reflector 15a held by the front plate 13, a top reflector 15b continuous at the upper end of the front reflector 15a, and a top reflector 15b. and a rear reflector 15c bent backward at a predetermined angle (for example, about 45° with respect to the top reflector). A lower opening 17 is formed as an irradiation opening for irradiating the door with indirect light on the lower surface side of the lighting housing space 15 . The door top surface frame portion 16 is continuous with the rear end of the rear reflector 15c. The surface of each of the reflectors 15a to 15c may be ground or roughened, or may be painted in various bright colors. The specifications of the reflecting surface are preferably determined according to the type of indirect light that illuminates the door surface 1a.

A circular hole 14 is formed at the upper end of the vertical frame 10B of the lighting housing space 15 (FIG. 2). A power cable 23 connected to the end of the tape lighting 20 is led to a power source (not shown) outside the door frame 10 through the circular hole 14 . LED chips 21 of various colors can be used as the light source of the tape illumination 20, and the LED chips 21 can be controlled in various colors and dimming by an attached control circuit. For example, in order to effectively illuminate the door surface 1a colored in a predetermined color, the color of the reflector and the emission color of the LED chip 21 can be appropriately set.

FIG. 2 schematically shows the path of the light beam R when the tape illumination 20 is turned on and the door surface 1a located below the illumination accommodation space 15 is illuminated. FIG. 3 shows a state in which the upper half of the door surface 1a of the office door 1 is illuminated as indirect lighting in the office door 1 shown in FIG. 1(a). The LED chip 21 mounted on the tape lighting 20 emits light with directivity, but as schematically shown in FIG. , and is irradiated from the lower opening 17 toward the lower door surface 1a as soft indirect light through the rear reflecting plate 15c. As a result, as shown in FIG. 3, the upper half of the door surface 1a of the office door 1 can be softly illuminated as indirect lighting.

4 shows various shape examples of the frame body frame 11 that forms the illumination housing space 15. FIG. FIG. 4(a) shows an example in which the tape illumination 20 is attached to the surface of the front reflecting plate 15a in the illumination housing space 15, although the frame 11 has the same shape as the frame 11 shown in FIG. ing. When the tape lighting 20 is attached at this position, the light beam R from the LED chip 21 is directly irradiated to the rear reflecting plate 15c at the opposite position. Since the rear reflector 15c is inclined at approximately 45° from the horizontal plane, the light beam R reflected by the rear reflector 15c can irradiate the door surface 1a over a wide range as relatively strong indirect light. FIG. 4(b) shows that a light diffusing plate 30 is provided in the lower opening 17 of the lighting housing space 15 having the same shape as that of FIG. can be done. As the light diffusing plate 25, a known translucent plate material having light diffusing properties such as a frosted plate, a simple Fresnel lens, and a milky white plate can be used. FIG. 4(c) shows that two reflecting plates 15c and 15d facing each other at 45° to the tape lighting 20 installed on the bottom plate 13a of the front plate 13 are arranged so as to form a substantially right angle, thereby achieving an indirect light. An example is shown in which the light is reliably emitted downward from the lower opening 17 of the illumination housing space 15 . In this example, one end of the reflector 15d is a free end. 1a) can be changed. FIG. 4(d) controls the irradiation direction of the reflected light by appropriately setting the light source position of the indirect light on the reflecting curved surface 15e configured with various curved shapes such as a two-dimensional curve (parabola, parabola). It is also possible to enhance the effect of indirect lighting.

5 and 6 show another embodiment in which a frame body frame 11 having the same shape as the upper frame 10A shown in FIG. 2 is applied to the vertical frame 10B of the door 1. FIG. The structure of each part of the frame body frame 11 is exactly the same as the structure of the frame body frame 11 of the upper frame 10A of FIG. It can be freely opened and closed via a hinge 3. FIG. 6 shows an office door 1 equivalent to FIG. 1(a), in which tape lighting 20 housed in lighting housing space 15 of frame body frame 11 of vertical frame 10B serves as indirect lighting. , a state in which the entire side portion of the child door 1B in the vertical direction is illuminated.

In the above explanation, an application example of softly illuminating a wide area such as the upper half of the door surface and the entire side surface as indirect lighting was described. If it is attached, it is possible to illuminate the plate portion as a spotlight by adjusting the amount of light, the direction of light, the range of light emission, and the like. In addition, although a tape-shaped LED lighting was explained as an example of a belt-shaped light source, a plurality of LED chips can be unitized into a product such as a so-called tube light, in which a plurality of LED chips are arranged in a row in a transparent tube. It goes without saying that various forms of illumination produced in strips can be applied as appropriate.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope indicated in each claim. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

1 Door 1a Door surface 10 Door frame 10A Upper frame 10B Vertical frame 11 Frame body frame 15 Lighting accommodation space 16 Door upper surface frame 17 Lower opening (irradiation opening)
20 LED lighting (tape lighting)
21 LED light source chip

Claims (7)

A door frame having an inner surface serving as a reflective surface and an illumination housing space having an irradiation opening formed on one surface thereof, wherein a light beam emitted from a belt-shaped light source housed in the illumination housing space is reflected by the reflective surface to produce the above-mentioned light beam. A door frame with indirect lighting characterized by irradiating a part of a door surface as indirect light from an irradiation opening. 2. A door frame with indirect lighting according to claim 1, wherein said door frame is a door upper frame, and said irradiation opening is formed by opening a lower surface of said lighting accommodation space. 2. A door frame with indirect lighting according to claim 1, wherein said door frame is a vertical door frame, and said irradiation opening is formed by opening a side surface of said lighting accommodation space. 2. The door frame with indirect lighting according to claim 1, wherein said belt-like light source is lighting in which a plurality of LED light source chips are arranged in a row, and is attached along the longitudinal direction in said lighting housing space. 2. The door frame with indirect lighting according to claim 1, wherein said door frame has said lighting accommodating space formed by bending a member. 6. A door frame with indirect lighting according to claim 5, wherein at least one of the reflecting surfaces formed on the inner surface of said lighting housing space is bent at approximately 45[deg.] with respect to said irradiation opening. 2. The door frame with indirect lighting according to claim 1, further comprising a light diffusing means attached to said irradiation opening.

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