JPH058814U - Downlight mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a downlight mounting structure that is easy to install and hassle free. [Structure] A structure for mounting a downlight 1 having a cylindrical outer cylinder 2 with an open lower edge, wherein a connecting portion is provided between upper members 4a, 4b placed on an upper portion of a ceiling plate 3 with a space therebetween. A metal beam member 5 having 52 arranged therein and having a slit 51 extending in the longitudinal direction is attached, and a wood screw 6 or a tapping screw having an outer diameter slightly larger than the width of the slit 51 is attached to the slit 51 of the beam member 5. The outer cylinder 2 is mounted by using 7. Thus, both when attaching the beam member 5 between the upper members 4a and 4b and when attaching the outer cylinder 2 of the downlight 1 to the beam member 5, it is possible to save the labor of previously processing the prepared hole in the beam member 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device, which is embedded in a ceiling plate of a building and illuminates the lower side, so-called a downlight mounting structure.

[0002]

[Prior Art]

 There are various types of luminaires that can be placed on the ceiling, such as chandeliers, pendants, ceiling lights, downlights, etc. Among these, the downlight has a simple appearance because there is no part that projects below the ceiling plate. Often used with other suspended luminaires for supplemental local lighting. In some cases, many down lights are placed in store lighting to create an unusual atmosphere. Many of these downlights have a cylindrical outer cylinder with an open lower end.The outer cylinder is fitted into the lower hole of the ceiling plate, and the end plate above the outer cylinder is screwed to the member behind the ceiling with wood screws. It adopts the mounting structure.

[0003]

[Problems to be solved by the device]

 However, the conventional downlight mounting structure has a drawback in that it is easily unstable in terms of strength. In other words, downlights are considerably lighter than hanging luminaires such as chandeliers and pendants, but because of their layout, they often set backing materials. Therefore, if this is supported only by the ceiling plate, a concentrated load is added to the ceiling plate, which is not originally a supporting member, which is inconvenient. However, it is rare that a suitable member for mounting the end plate of the outer tube of the downlight is present at a convenient position above the ceiling above the downlight mounting portion. For this reason, it is conceivable that a wooden horizontal member is arranged in a beam shape between members on the ceiling near the upper part of the downlight outer cylinder, and the downlight outer cylinder end plate is mounted on the wooden beam member. Is unexpectedly troublesome. In general, wooden beam members have a thick cross section, and they must be hammered against the ceiling lining members in the vicinity with thick nails, which may cause loosening of the mating members, and must be done with caution. It may be attached with wood screws, but this is also troublesome for drilling and tightening thick wooden members. Moreover, since the end plate of the downlight is attached to the wooden beam member with wood screws, it is troublesome to drill the prepared hole. This is because the end plate is the inner part of the outer cylinder and nailing cannot be done easily. An object of the present invention is to provide a downlight mounting structure that is easy and labor-free.

[0004]

[Means for Solving the Problems]

 The downlight mounting structure according to the present invention is for a downlight having a cylindrical outer cylinder with an open lower end, and a connecting portion is provided between upper members placed on the ceiling plate at intervals. Arrange and attach a metal beam member having a slit along the longitudinal direction, and for the slit of the beam member, using a tapping screw or a wood screw having an outer diameter slightly larger than the width of the slit, The external cylinder is configured to be mounted.

[0005]

[Action]

 The metal beam member is thin, and the nails or wood screws for attaching both ends to the existing upper member on the ceiling are short and thin, so there is little impact during installation. A slit can be used for the prepared hole on the beam member side both when the both ends are attached and when the end plate of the downlight outer cylinder is attached to the beam member. Since this slit has a connecting portion with a gap between them, the slit gap does not open and the prepared hole function is stably maintained.

[0006]

【Example】

 1 is an exploded perspective view showing an embodiment of the downlight mounting structure of the present invention, and FIG. 2 is a vertical cross-sectional view of the downlight mounting structure of FIG. In the figure, 1 is a downlight, 2 is an outer tube of the downlight 1, 21 is an upper mirror plate of the outer tube 2, 3 is a ceiling plate, and 4a and 4b are upper members which are horizontally placed on the ceiling plate 3 and 5 Is a metal beam member, 51 is a slit provided in the beam member 5, 52 is a connecting portion arranged at a constant interval in the slit 51, 6 is a wood screw for fixing the beam member 5 to the upper members 4a and 4b, and 7 is a beam member 5 is a tapping screw for mounting the end plate 21 of the outer cylinder 2 of the downlight 1, and 8 is a floor panel on the second floor. As shown in FIG. 1, the downlight 1 of this embodiment is mounted on the ceiling plate 3 on the first floor below the floor panel 8 on the second floor, and the outer cylinder 2 of the downlight 1 is made of a steel plate on the lower surface of the floor panel 8. It is attached via the beam member 5.

In detail, as shown in FIG. 2, the lower edge of the outer tube 2 of the downlight 1 is inserted into a lower hole provided in the ceiling plate 3 from above, and the reflecting mirror 11 and the decorative flange 12 are attached to the ceiling plate. The ceiling plate 3 is sandwiched from the lower side of the outer cylinder 3 and is fitted and attached to the inner circumference of the outer cylinder 2. The weight of the downlight 1 is supported by the floor panel 8 by suspending the outer cylinder 2 on the lower surface of the floor panel 8. The floor panel 8 has a plywood 81 on the upper surface of a wooden core material, and a gypsum board 82 on the lower surface of the core material to improve sound insulation and heat insulation. The core member is used as the upper members 4a and 4b in this case, and the beam member 5 is attached between them. The beam member 5 has a substantially U-shaped cross section with a downward opening as shown in FIG. And a slit 51 is provided on the upper surface thereof. The slits 51 are provided with connecting portions 52 at regular intervals so that the slit gap does not easily widen.

In this embodiment, the slit 51 has a width of about 3 mm, the connecting portion 52 has an arrangement interval of about 100 mm, and the connecting portion 52 itself has a width of about 2 mm. The beam member 5 is cut in accordance with the arrangement interval of the core members which are the upper members 4a and 4b, and both ends thereof are fixed with the wooden screws 6 as shown in the figure. By using the slits 51, it is not necessary to process the prepared holes on both ends of the beam member 5. Next, the tip of the tapping screw 7 is applied to the mounting hole 22 of the end plate 21 of the outer cylinder 2 of the downlight 1 and screwed in from below. The outer diameter of the tapping screw 7 is larger than the width of the slit 51, and the tapping screw 7 bites into the slit 51 and is securely tightened. At this time, the slit 51 has the connecting portion 52, the side edge of the slit 51 does not bend, the width is kept constant, and the biting of the tapping screw 7 does not become loose. Thus, the outer cylinder 2 of the downlight 1 is easily and surely attached to the floor panel 8 via the beam member 5, the weight is also supported here, and the ceiling plate 3 is not burdened. The same applies when a wood screw is used instead of the tapping screw 7.

Since the beam member 5 is thin and light and easy to handle, the wood screws 6 attached to both ends of the ceiling member between the upper members 4a and 4b of the ceiling need only be small in diameter and short, and the slit 51 serves as the pilot hole. Positioning is easy and construction is easy. In addition, there is no impact at the time of mounting, the pressing force is small, and there is no adverse effect on the mating member. The tapping screw 7 that attaches the end plate 21 of the outer tube 2 of the downlight 1 to the beam member 5 also has a prepared hole as a slit 51, which allows easy alignment, and this is also easy, accurate, and Can be installed quickly. The slits 51 are present over almost the entire length, and can be used as the beam member 5 that has been prepared as a hole even if the arrangement length is changed. The connecting portions 52 arranged at regular intervals in the slit 51 have a very narrow width as described above, and rarely interfere with the wood screw 6 or the tapping screw 7, and even if they interfere with each other, the mutual positions will be changed. Escape easily with a slight shift.

The downlight mounting structure of the present invention can be modified in various ways other than the above embodiment. For example, the opposite side edge of the slit of the beam member can be processed into a bent edge to increase the effective length of biting into a tapping screw or a wood screw.

[0011]

[Effect of the device]

 According to the downlight mounting structure of the present invention, the labor of the mounting work is reduced, and the work itself is extremely easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a downlight mounting structure according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the mounting structure of the downlight of FIG.

[Explanation of symbols]

 1 Downlight 2 Outer Cylinder 3 Ceiling Board 4a, 4b Upper Member 5 Beam Member 6 Wood Screw 7 Tapping Screw 8 Floor Panel 21 End Plate 51 Slit 52 Joint Section

Claims (1)

[Claims for utility model registration] [Claim 1] A downlight mounting structure having a cylindrical outer cylinder having an open lower end, wherein a space is provided between upper members placed on the ceiling plate. Attach a metal beam member provided with a slit along the longitudinal direction by arranging the connecting portion, and for the slit of the beam member, a tapping screw having an outer diameter slightly larger than the width of the slit, or a wood screw. A downlight mounting structure, wherein the outer cylinder is mounted using the downlight.