JPH0314737Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a ceiling-mounted multi-light lighting fixture, chandelier. Specifically, multiple light bodies are arranged on the side of the fixture body so that they can be separated via an arm. Regarding lighting equipment.

Conventional technology A multi-light lighting fixture has a plurality of arms extending at equal intervals on the sides of the fixture body, and a lamp body containing a built-in light source such as an annular fluorescent lamp is connected and arranged at the tip of each arm. If the width is wide, the packaging will be large and transportation and storage costs will be high. Therefore, recently, separate type multi-light lighting fixtures have been developed in which an arm that extends integrally from the lamp body is removably attached to the fixture body using screws, etc., and the fixture body and the light body including the arm are packaged separately. It is attracting attention and being put into practical use because it allows for smaller packaging and lower transportation and storage costs.

This separate type multi-lamp lighting fixture is required to be easily assembled by the user after unpacking, so it has a structure in which the arm extending from the light body is screwed to the fixture body with a single decorative screw. There are many types, and specific conventional examples thereof will be explained with reference to FIGS. 5 to 18.

Fig. 5 is a front view of the multi-light lighting fixture 1, and Fig. 6 is a plan view taken from line B-B in Fig. 5. In the same figure, 2 is a circular fixture body, 3, 3... are fixtures. Four cylindrical arms extending at 90° intervals on the sides of the main body 2,
4, 4... are four lamp bodies supported at the tips of the arms 3, 3.... Reference numeral 5 denotes a power cord extending upward from the center of the upper surface of the appliance main body 2 via a cord storage case 6 and a cord adjuster 7; 8 a hook ceiling cap fixed to the tip of the power cord 5, which is fixed to the ceiling 9; By fitting and fixing it into the hanging ceiling body 10, the entire lighting fixture 1 is suspended and supported from the ceiling 9 by the power cord 5.

As shown in FIG. 7, the device body 2 is made up of an inverted dish-shaped sheet metal body 11 and a dish-shaped resin body 12, each of which has its opening ends combined and fixed with screws. (not shown) are stored. Four lower arms 13, 13, . . . of the same shape are integrally molded and protrude from the sides of the resin body 12 at 90° intervals. As shown in FIG. 9, the lower arm 13 is a box-shaped arm with an open upper end, and includes a bottom plate portion 13a having a dogleg-shaped cross section, and side plate portions 13b extending vertically upward from both ends of the bottom plate portion 13a.

The four lamp bodies 4, 4... have the same shape, and to explain one of them, the lamp body 4 has an inverted dish-shaped upper shade 14 made of resin, and a dish-shaped lower shade 15 made of resin and translucent. One annular fluorescent lamp 16 is surrounded by the surrounding area. An annular fluorescent lamp 16 is installed on the inner surface of the upper shade 14.
A lamp holder (not shown) is attached to hold the lamp. Furthermore, an upper arm 17 as shown in FIGS. 11 to 13 is integrally molded on the top of the upper shade 14. The upper arm 17 extends to one side from the top of the upper shade 14, and is a long top plate portion 17.
It is a box-shaped arm with an opening at the lower end, and includes side plate portions 17b, 17b extending downward from both ends of the top plate portion 17a. Side plate portions 17b, 17 of upper arm 17
b extends laterally from point P midway on the upper surface of the upper shade 14, and the lower end surfaces of the side plate portions 17b, 17b are connected to the side plate portion 13 of the lower arm 13 of the resin body 12.
The upper end 17 is fitted onto the lower arm 13 in a shape that matches the upper end surfaces of the arms 13b and 13b, and the side surface and upper surface periphery of the sheet metal main body 11, so that the arm 3 having a cross-section shape is constituted by the upper end 17. When the upper arm 17 and the lower arm 13 are aligned, the tip of the top plate portion 17a of the upper arm 17 aligns with the upper peripheral portion of the sheet metal body 11. A screw insertion hole 18 is formed at the tip of this top plate part 17a, and a screw hole 19 is formed around the upper surface of one of the sheet metal bodies 11, and by tightening the decorative screw 20 from the screw insertion hole 18 to the screw hole 19, The tip of the upper arm 17 is fixed to the sheet metal body 11.

The lower shade 15 is attached to the upper shade 14, which is integrally molded with the upper arm 17, in such a manner that it can be easily attached and detached so that the lamp can be easily replaced.
For example, there are tongue pieces 2 at three locations on the outer circumference of the upper shade 14.
1, 21... are integrally provided, and the lower shade 1
As shown in FIGS. 14 to 16, a flange 22 having a U-shaped cross section is integrally provided on the outer periphery of the flange 22, and tongue pieces 21, 21...
Notches 23, 23, . . . are provided for insertion. Then,
Lift the lower shade 15 up to the upper shade 14, insert the tongue pieces 21, 21... into the notches 23, 23..., turn the lower shade 15, and insert the tongue pieces 21, 21... into the flange 22. When you release your hand from the lower shade 15, the upper plate part 22a of the flange 22 is placed on the tongue pieces 21, 21... and the lower shade 15 is attached to the upper shade 14, as shown in FIG. It will be done.

The multi-lamp lighting fixture 1 is assembled as shown in FIGS. 9 and 10. The lamp body 4 is assembled by attaching the lower shade 15 to the upper shade 14, and the upper arm 17 extending from the lamp body 4 is fitted onto the lower arm 13 extending from the instrument body 2 in the direction of the arrow in FIG. That is, the upper arm 17 is tilted and the tips of the side plate parts 13b, 13b of the lower arm 13 are inserted toward the intersection P of the side plate parts 17b, 17b of the upper arm 17 and the upper shade 14,
Lower the upper arm 17 onto the lower arm 13, butt and join the end surfaces of the side plates of both arms 17 and 13, and attach the tip of the top plate 17a of the upper arm 17 onto the sheet metal body 11 with the decorative screws 20. and secure with screws. Then, the upper arm 17 is fixed to the cosmetic screw 2.
The lamp body 4 is stably supported on the lower arm 13 by only one 0.

Problems to be solved by the invention Since the upper shade 14 and the upper arm 17 are integrally molded using a resin mold, the upper shade 14
A part of the radial direction in which the upper arm 17 extends is an opening portion 24 that serves as a punch hole of a mold for molding the upper arm 17. On the other hand, the lower arm 13, which together with the upper arm 17 constitutes the cylindrical arm 3, is set to have the same width as the upper arm 17 in order to improve the appearance of the arm 3. Therefore, when the upper arm 17 is placed on the lower arm 13, the tips of the side plates 13b, 13b of the lower arm 13 are located within the opening 24 of the upper shade 14, as shown by the chain lines in FIG. Then, the next problem arose.

A light body 4 attached to the fixture body 2 with an arm 3
Since a part of the flange 22 of the lower shade 15 is in contact with the lower end of the tip of the lower arm 13,
The lamp body 4 is stably supported at two points, the tip of the lower arm 13 and the decorative screw 20, and there is no problem with external forces applied from the bottom to the top. However, when the lower shade 15 is removed from the lamp body 4 as shown in FIG. 17, such as when replacing a lamp, the tip of the lower arm 13 is located in the opening 24 of the upper shade 14.
Since there is nothing below the lower arm 13, the cosmetic screw 20 is the only means for supporting the external force applied from the bottom to the top of the integral body of the upper shade 14 and the upper arm 17. Therefore, when attaching and detaching the annular fluorescent lamp 16 to the lamp holder of the upper shade 14,
When attaching the lower shade 15 to the upper shade 14, if an upward external force is applied to the upper shade 14, as shown in FIG. Sometimes, excessive force is applied to the tip of the upper arm 17, causing the tip of the upper arm 17 to break.

As a solution to such problems, upper shade 14
It is conceivable that an engaging means abutting the lower end of the distal end of the lower arm 17 is integrally extended within the opening portion 24 of the lower arm 17 . However, if the upper shade 14 is provided with the above-mentioned engagement means, the upper shade 14 and the upper arm 17
A complex and expensive mold is required for molding the integral part, and the top plate part 17a of the upper arm 17 is
There is a punched hole in the mold that forms the engagement means,
Light leaks through this hole, causing problems such as deteriorating the appearance of the lighting fixture, making it impractical.

Means for solving the problems This invention was made in view of the above problems.
A lamp body with a light source surrounded by an inverted dish-shaped upper shade and a dish-shaped lower shade is arranged at each tip of a plurality of cylindrical arms extending at equal intervals on the side of the appliance body, and the arms are connected to the appliance body. An extending resin lower arm,
In the lighting device, the lighting device is placed on the lower arm, has one end screwed onto the device body, and has an upper arm made of resin that integrally has the upper shade at the other end, at the tip of the lower arm. To provide a lighting fixture characterized in that a rib is integrally provided on the side of the upper shade to abut on the upper surface of the upper shade.

Function The rib of the lower arm comes into contact with the upper surface of the upper shade of the lamp body, thereby stably supporting the upper shade against external forces applied upward to the upper shade.

Embodiment An embodiment of the present invention applied to the multi-lamp lighting fixture 1 shown in FIGS. 5 and 6, for example, will be described below with reference to FIGS. 1 to 4. Note that in FIGS. 1 to 4, the same parts as in FIGS. 5 to 18 are given the same reference numerals, and explanations thereof will be omitted.

A different feature of the present invention is that ribs 25, 2 are provided on both sides of the tip of the lower arms 13', 13', which extend laterally integrally from the resin body 12' of the instrument body 2'.
The only difference is that 5... is integrally provided. A pair of ribs 25, 25 on one lower arm 13'
is provided at a location and size that contacts or is close to the upper surface along the opening portion 24 of the upper shade 14 when the upper arm 17 is mounted on the lower arm 13'.

With the addition of the ribs 25, 25, the upper arm 17
There is no change in the manner in which the upper arm 17 is mounted on the lower arm 13', and the upper arm 17 is mounted on the lower arm 13' in the same manner as before, and screwed onto the sheet metal body 11 with decorative screws 20. Rib 25 at this time,
Since the ribs 25 are located on the upper shade 14 and cannot be seen from below the lamp body 4, the appearance of the arm 3 is not impaired by the ribs 25, 25.

Further, as shown in FIG. 4, when the lower shade 15 is removed from the upper shade 14, the upper shade 14 and the upper arm 17 are integrated together with the cosmetic screws 20 and the ribs 25, 25 against the external force applied to the top. Since it is supported, the upper shade 14 is removed when replacing the lamp, etc.
Even if an external force is applied upward to the top, the upper shade 14 and the upper arm 17 remain stable without being lifted up.

Effects of the invention According to the invention, the light body placed on the side of the fixture body is no longer lifted upward, and the arm supporting the light body is no longer damaged, making it convenient to handle and having excellent commercial value. Lighting equipment can be provided.

[Brief explanation of the drawing]

FIG. 1 is a front view including a partially omitted cross section showing an embodiment of the lighting device according to the present invention, and FIG.
Fig. 3 is an enlarged partially exploded perspective view of the lighting fixture in Fig. 1, and Fig. 4 is an enlarged sectional view taken along line A-A in the figure.
FIG. 2 is a partially enlarged perspective view of the lighting fixture shown in the figure when the lamp is replaced. FIG. 5 is a front view including a partially omitted cross-section of a conventional lighting fixture, FIG. 6 is a plan view taken from line B-B in FIG. 5, and FIGS. 7 and 8 are C--C in FIG. C
9 is an enlarged cross-sectional view taken along the line and the line D-D.
FIG. 10 is a front view of the lighting device shown in FIG. 5 when assembled; FIG. 11 is a plan view of the upper shade and upper arm of the lighting device shown in FIG. Figure 12 is a sectional view taken along the line E-E in Figure 11, Figure 13 is an enlarged perspective view taken along the line F-F in Figure 12, and Figure 14 is a plan view of the lower shade of the lighting fixture in Figure 5. , Figures 15 and 16 are enlarged sectional views taken along lines GG and H-H in Figure 14, and Figures 17 and 18 are part of the lighting equipment in Figure 5 when replacing the lamp. It is an enlarged perspective view. 2'... Fixture body, 3... Arm, 4... Light body,
13'...Lower arm, 14...Upper shade, 15
...Lower shade, 16...Light source (ring-shaped fluorescent lamp),
17... Upper arm, 20... Screw, 25... Rib.

Claims (1)

[Scope of Claim for Utility Model Registration] A lamp body in which a light source is surrounded by an inverted dish-shaped upper shade and a dish-shaped lower shade is arranged at each tip of a plurality of cylindrical arms extending at equal intervals on the sides of the device body. The arm includes a lower arm made of resin extending from the instrument body, and a lower arm made of resin that is placed on the lower arm, has one end screwed onto the instrument body, and has the upper shade integrally at the other end. What is claimed is: 1. A lighting device comprising an upper arm, characterized in that a rib is integrally provided on the side of the distal end of the lower arm and comes into contact with the upper surface of the upper shade.