Lighting apparatus

Abstract

To provide a luminaire capable of easily mounting an illumination lamp without reducing the degree of freedom in design of the whole shade.SOLUTION: The lighting fixture includes a shade for the lighting fixture having a polyhedral shape as a whole in which a lamp housing space is formed in the inside closed by a side face part, an upper face part and a bottom face part, and a lighting lamp housed in the lamp housing space. A lighting portion having an arbitrary pattern for emitting light from the illumination lamp to the outside is formed in the side surface portion, and a lamp insertion hole portion having a size that allows the illumination lamp to be inserted into the inside from the outside, an illumination lamp attachment portion that positions the illumination lamp in the lamp storage space and attaches a power cord portion of the illumination lamp, and a power cord movement notch portion that is continuous from the lamp insertion hole portion to the illumination lamp attachment portion and allows the power cord to be moved are formed in one of the upper surface portion and the bottom surface portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture in which a lighting lamp is disposed within a lighting fixture shade. [Background technology]

[0002] Lighting fixtures installed indoors generally include a lighting fixture shade (hereinafter sometimes simply referred to as a shade) that covers the lighting lamp. In ceiling-hanging lighting fixtures that are hung from the ceiling, the shade is arranged in an umbrella shape above or around the lighting lamp, while in tabletop lighting fixtures that are fixed to a table, the shade is arranged around the lighting lamp. In a typical example of such lighting fixtures, when attaching the lighting lamp to the shade, the lighting lamp is positioned by moving it from the opening at the bottom of the shade to the attachment part at the top, and in that state, the top of the lighting lamp is fixed to the shade with a metal fitting or the like (Patent Document 1).

[0003] However, in lighting fixtures with this type of structure, the lower part of the shade is open, and the lighting lamp and its attachment point are visible through the open part, which can be unsightly. To solve this problem, proposals have been made to cover the lower part of the entire shade with a removable shade cover (Patent Documents 2 and 3), and to shape the regular hexahedron-shaped shade so that the corners are largely cut away and the lighting lamp can be inserted into the shade through these corners (Patent Document 4). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-187188 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-004006 [Patent Document 3] Japanese Patent Application Publication No. 2-090406 [Patent Document 4] Utility Model Registration No. 3192272 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional lighting fixtures, it is not easy to attach a lighting lamp to a designed shade that covers the entire periphery of the lighting lamp. For example, in Patent Documents 2 and 3, it is necessary to attach a shade cover after attaching the lighting lamp to the upper shade, and in Patent Document 4, it is necessary to largely cut off the corners of the regular hexahedron-shaped shade to cover those parts, which is inconvenient as it impairs the design of the entire shade.

[0006] An object of the present invention is to provide a lighting fixture in which the lighting lamp can be easily attached without reducing the degree of freedom in design of the entire shade. [Means for solving the problem]

[0007] The lighting fixture of the present invention comprises: A polyhedron-shaped lighting fixture shade with a lamp storage space formed inside, closed by side, top, and bottom sections. an illumination lamp accommodated in the lamp accommodation space, The side surface is formed with a light-collecting portion having an arbitrary pattern for emitting light from the illumination lamp to the outside, The lamp storage device is characterized in that a lamp insertion hole of a size that allows the illumination lamp to be inserted from the outside into the interior is formed on any of the side, top, or bottom surfaces, an illumination lamp mounting portion that positions the illumination lamp in the lamp storage space and mounts the power cord portion of the illumination lamp, and a power cord movement notch that continues from the lamp insertion hole to the illumination lamp mounting portion and allows the power cord to be moved.

[0008] The shade is made of, for example, a decorative panel with a white diffuse reflective film formed on its inner surface using paint, etc. The light from the lighting lamp is a mixture of direct light emitted directly from the lamp and indirect light reflected by the diffuse reflective film, and is emitted to the outside of the shade through the light collecting section.

[0009] The side of the shade is formed with a light-collecting section having cutouts in a designed pattern, such as a geometric pattern such as a kumiko pattern.

[0010] With this configuration, when the lighting lamp is turned on, the room is illuminated with the light emitted to the outside from the lighting section, and a lighting effect can be created by projecting geometric patterns or the like onto the wall of the room.

[0011] In this invention, either the top or bottom surface is formed with a lamp insertion hole large enough to insert the illumination lamp from the outside into the interior, a lamp mounting portion for positioning the illumination lamp in the lamp storage space and mounting the lamp's power cord, and a power cord movement notch that connects from the lamp insertion hole to the lamp mounting portion and allows the power cord to be moved. When the illumination lamp is inserted into the lamp insertion hole and the power cord is moved from the lamp insertion hole along the power cord movement notch, the illumination lamp also moves within the lamp storage space. The end of the power cord movement notch serves as the illumination lamp mounting portion, and moving the power cord to this end corresponds to the lamp mounting position. The illumination lamp is then positioned in this position, and the power cord is secured to the shade.

[0012] This allows the shade to be treated as a completed item before the lamp is installed, eliminating the need to attach a cover to the shade during installation. Furthermore, to position the lamp and hold it in the lamp storage space, the power cord can be secured to the lamp mounting section, which can be achieved with small fastening parts, such as a fastening section consisting of a small washer, screw, and nut. The lamp insertion hole for inserting the lamp into the shade and the power cord movement cutout that allows the power cord to be moved are part of the shade's design, so they do not create a sense of incongruity in appearance.

[0013] If the lighting fixture is a ceiling-hanging type, the lamp insertion hole, the lamp attachment part, and the cutout part for moving the power cord are formed on the top surface of the shade, while if the lighting fixture is a tabletop type, the lamp insertion hole, the lamp attachment part, and the cutout part for moving the power cord are formed on the bottom surface of the shade. [Effects of the Invention]

[0014] According to this invention, the design of the entire shade is not impaired and the degree of freedom in design is not reduced, and the work of installing the illumination lamp is simplified. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of the appearance of a lighting fixture shade according to an embodiment of the present invention; [Figure 2] 1 is an external view of an illumination lamp unit according to an embodiment of the present invention; [Figure 3] 1 is a cross-sectional view of a lighting fixture according to an embodiment of the present invention. [Figure 4] This shows the inside of the sealing part. DETAILED DESCRIPTION OF THE INVENTION

[0016] Fig. 1 is an external perspective view of a lighting fixture shade according to an embodiment of the present invention. Fig. 2 is an external view of the lighting lamp unit, and Fig. 3 is a cross-sectional view of the lighting fixture. Fig. 4 shows the inside of the sealing unit. The configuration of the lighting fixture according to an embodiment of the present invention will be described below with reference to these figures.

[0017] The lighting fixture of this embodiment is a ceiling-suspended lighting fixture. This lighting fixture includes a lighting fixture shade (hereinafter sometimes simply referred to as a shade) 1 and a lighting lamp 2. The lighting lamp 2 has the shape of a bulb-shaped lighting lamp, such as an incandescent bulb or an incandescent-shaped LED lamp.

[0018] Shade 1 is constructed, for example, by assembling flat decorative panels whose inner surfaces are coated with a white diffuse reflective film using paint or the like. In this example, shade 1 is composed of one top panel 10, one bottom panel 11, and four side panels 12, which are joined together by adhesive or the like to form a regular hexahedron. The interior of regular hexahedron-shaped shade 1 forms lamp storage space 3 for storing lighting lamp 2, and the periphery of this lamp storage space 3 is surrounded by one top panel 10, one bottom panel 11, and four side panels 12.

[0019] Each of the four side surfaces 12 has a plurality of light-collecting sections 120, which are linear, parallel, inclined holes when viewed from the front, cut out to form a certain kind of design pattern as a whole. A laser processing machine is used to cut out the light-collecting sections 120 so that the cutout shapes are beautiful down to the smallest detail. The pattern can be any, and a geometric pattern such as a kumiko pattern is preferable.

[0020] The arrangement, number, position, etc. of the lighting sections 120 formed on each of the four side sections 12 are the same to maintain uniformity in design.

[0021] Moreover, the top surface 10 and the bottom surface 11 are also formed with lighting sections of any desired pattern.

[0022] The upper surface portion 10 is formed by cutting out the following: a lamp insertion hole portion 100 large enough to insert the lighting lamp 2 from the outside into the shade 1; a lighting lamp mounting portion 102 for positioning the lighting lamp 2 in the lamp storage space 3 and mounting the power cord portion 20 of the lighting lamp 2; and a power cord movement notch portion 101 that continues from the lamp insertion hole portion 100 to the lighting lamp mounting portion 102 and allows the power cord portion 20 to be moved.

[0023] The top surface 10 is further provided with other cutouts formed by cutting out, so that the top surface as a whole appears as a pattern with a certain design.

[0024] The size of the lamp insertion hole 100 is set so that a lamp with a diameter larger than that of the illumination lamp 2 cannot be inserted. Normally, incandescent illumination lamps have different lamp diameters set depending on their wattage. However, if the brightness of the lighting fixture of the embodiment is set to 40 W specifications, the size of the lamp insertion hole 100 is set so that a 40 W bulb can be inserted but a 100 W bulb cannot be inserted. Also, if the brightness of the lighting fixture of the embodiment is set to 100 W specifications, both a 100 W bulb and a 40 W bulb can be inserted into the lamp insertion hole 100, but an attempt to insert a 40 W bulb will make it clear that the diameter of the 40 W bulb is too small for the size of the lamp insertion hole 100.

[0025] As can be seen from Figure 1, when the top surface 10, bottom surface 11, and side surface 12, which have been cut out as described above, are joined at their ends by adhesive or the like, the whole becomes a regular hexahedron-shaped shade 1 that can be used as room decor.

[0026] 2, a threaded portion 21 for fastening the cord is formed on the lamp side of power cord portion 20, and a nut 22 and washer 23 that engage with this are inserted into power cord portion 20. Also, a ceiling portion 24 is provided on the end of power cord portion 20 opposite the lamp side, which is hooked onto a power cord mounting portion on the ceiling of the room to secure it in place.

[0027] Next, the procedure for assembling the lighting fixture will be described.

[0028] A single decorative panel is cut into six square panels using a laser processing machine, and then light-collecting sections are formed in each panel by cutting out notches as shown in Figure 1. Next, the panels are joined together around their peripheries by adhesive or other means to form a three-dimensional shade 1 in the shape of a regular hexahedron.

[0029] 2 to the shade 1, the lamp 2 is inserted from above into the lamp insertion hole 100, the power cord portion 20 is moved along the power cord movement notch 101, and when the power cord portion 20 reaches the lamp mounting portion 102, the threaded portion 21 is tightened with the nut 22 via the washer 23 to fix the power cord portion 20. This positions and holds the lamp 2 in a predetermined position within the lamp storage space 3. The work is then completed by hooking the sealing portion 24 onto a power cord mounting portion (not shown) provided on the ceiling.

[0030] In this way, the work of attaching the lighting lamp 2 to the shade 1 is extremely simple, and there is no need to attach a shade cover to the shade 1 after attaching the lighting lamp 2. Furthermore, the work of attaching the lighting lamp 2 to the shade 1 is simply a matter of inserting the lighting lamp 2 from above into the lamp insertion hole 100, moving it along the cutout portion 101 for moving the power cord, and when the power cord portion 20 reaches the lighting lamp attachment portion 102, tightening the screw portion 21 with the nut 22 at that position to fix the power cord portion 20.

[0031] To replace the illumination lamp 2, the above procedure is simply reversed: loosen the nut 22 and remove it from the screw portion 21, move the power cord portion 20 along the power cord movement notch 101, and when the illumination lamp 2 reaches the position of the hole 100, pull the illumination lamp 2 upward.

[0032] When the illumination lamp 2 is not turned on, the shade 1 is suspended from the ceiling, but the top surface 10, bottom surface 11, and side surface 12 each have an appearance of a certain pattern as a whole, so that it can be appreciated as an interior decoration in a room.

[0033] Furthermore, when lighting lamp 2 is turned on, the light from lighting lamp 2 is a mixture of direct light and indirect light reflected by a white diffuse reflection film, and is emitted to the outside of shade 1 through lighting section 120. Since side section 12, top section 10, and bottom section 11 of shade 1 are formed with lighting sections (lighting section 120 on side section 12) in a designed geometric pattern, when lighting lamp 2 is turned on, the light emitted to the outside from the lighting section illuminates the room and can also create a lighting effect by projecting a geometric pattern or the like onto the room's wall. In this case, the light emitted to the outside is a mixture of direct and indirect light, and because the lighting section is in the shape of a geometric pattern, the light projected on the wall is a mixture of bright and shadowed areas, creating a lighting effect in which a faint geometric pattern is visible. This creates an atmosphere that creates aesthetic spatial illumination throughout the room.

[0034] The lamp mounting portion 102 provided on the top surface portion 10 is set to a size that allows the power cord portion 20 and the threaded portion 21 to pass through, so the size of the washer 23 is at most one to two times the size of the power cord portion 20. Therefore, when the lamp 2 is attached to the shade 1, the washer 23, which spoils the aesthetic appearance, can be extremely small, and therefore has almost no adverse effect on the overall aesthetic appearance.

[0035] The lamp insertion hole 100 is sized so that a lamp with a diameter larger than that of the illumination lamp 2 cannot be inserted, thereby preventing the erroneous insertion of an illumination lamp 2 that is larger than the rated size. Similarly, if an attempt is made to insert an illumination lamp 2 that is smaller than the rated size, it will be realized that the diameter of the illumination lamp 2 is too small for the size of the lamp insertion hole 100, and therefore, erroneous insertion in such cases can also be prevented.

[0036] When a fluorescent lamp is used as the illumination lamp 2, the drive unit can be housed in a cover, and the cover can be provided on the top of the illumination lamp mounting portion 102. In this case, if the cover housing the drive unit can be set to a size that allows it to pass through the lamp insertion hole 100, the cover can also be disposed inside the lamp housing space 3.

[0037] In this embodiment, a ceiling-suspended lighting fixture has been exemplified, but when applying this invention to a tabletop lighting fixture, the shade 1 shown in Fig. 1 is turned upside down, with the top surface 10 serving as the bottom surface and the bottom surface 11 serving as the top surface. The power cord portion 20 serves as a support port into which the power cord is inserted, and the support port is fixed to a base. When applying this invention to a lighting fixture that is fixed to a wall, the base for fixing the support port is attached to the wall.

[0038] In any of the above configurations, the configuration of the shade 1 is exactly the same. Therefore, in this embodiment, the same structure of the shade 1 can be used in any type of lighting fixture. Furthermore, the shape of the shade 1 can be any polyhedral shape, such as a regular octahedron, in addition to a regular hexahedron.

[0039] In the above embodiment, the power cord unit 20 is fixed to the lamp mounting portion 102 by fastening the screw portion 21 with the nut 22 via the washer 23. However, these fixing components may be omitted. The lamp 2 can be positioned by moving the power cord unit 20 to the position of the lamp mounting portion 102 and then hanging it from the ceiling. In this case, it is preferable to set the size of the cutout 101 for moving the power cord so that the power cord can pass through but the screw portion 21 cannot fit in. In this case, when the power cord unit 20 is moved to the position of the lamp mounting portion 102 and then hung from the ceiling, the shade 1 moves downward due to gravity, and the screw portion 21 fits into the lamp mounting portion 102. The lamp 2 is then positioned in that position and will not move toward the cutout 101 for moving the power cord. [Explanation of symbols]

[0040] 1-Lighting shade 2-Lighting lamp 3-Lamp storage space 10-Top part 11-Bottom part 12-Side part 100-Lamp insertion hole 101 - Cutout for moving the power cord 102-Lighting lamp mounting part 120-Lighting section

Claims

1. A polyhedron-shaped lighting fixture shade with a lamp storage space formed inside, closed by side, top, and bottom sections. an illumination lamp accommodated in the lamp accommodation space, The side surface is formed with a light-collecting portion having an arbitrary pattern for emitting light from the illumination lamp to the outside, a lamp insertion hole formed on either the top or bottom surface of the lighting fixture, the hole being large enough to allow the lighting lamp to be inserted into the interior from the outside; a lighting lamp mounting portion for positioning the lighting lamp in the lamp storage space and mounting a power cord portion of the lighting lamp; and a power cord movement cutout portion that continues from the lamp insertion hole to the lighting lamp mounting portion and allows the power cord to be moved.

2. 2. The lighting fixture according to claim 1, wherein the illumination lamp is a bulb-shaped illumination lamp, and the size of the lamp insertion hole is set to a size that prevents a lamp having a diameter larger than that of the bulb-shaped illumination lamp from being inserted.

3. The lighting fixture according to claim 1 , wherein the polyhedron shape is a regular hexahedron shape.

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