JPH0343612Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a stand-type lighting fixture for desk lighting.

[Background technology]

Conventionally, in a stand-type lighting fixture, in order to reduce the packaging volume, it is common to separate the base 50 and the support 51 of the lamp (not shown), as shown in FIG. A box portion 52 is provided at the base end of the support column 51, and a fitting recess 53 into which the box portion is fitted is provided on the upper surface of the base 50. Box part 52
The fixing screw 55 is fixed to the base 50 by a single fixing screw 55 passing through the bottom wall of the fitting recess 53, thereby simplifying the fixing work. The fixing screw 55 is located at the center of the bottom surface of the box portion 52. Reference numeral 54 indicates a hole through which a fixing screw 55 is inserted.

However, most of the bases 50 have a low slope on the front side of the upper surface, and in the case of a base with such a slope, the fitting recess 53 is shallow on the front side.
Therefore, if the fixing screw 55 is located at the center of the bottom surface of the box part 52, there is a problem that the front part of the box part 52 is not sufficiently held by the inner wall surface of the fitting recess 53, and the fixing strength is weak. . For example, when trying to change the direction of the lamp by bending the flexible pipe portion formed at the upper part of the arm 51, the front part of the box part 52 will not fit into the fitting recess 53.
Sometimes it rises up from the bottom. If the number of fixing screws 55 is increased, the fixing can be ensured, but the fixing work becomes complicated.

[Purpose of invention]

The purpose of this invention is to provide a stand-type lighting fixture that can securely and firmly fix the support and the base with a single fixing screw.

[Disclosure of invention]

This idea is based on a fitting method in which a box part is provided at the base end of a column that has a lamp at its tip, and the lower part of the box part is fitted into the upper surface of the base, which has an inclined upper surface and has a substantially horizontal bottom wall. In a stand-type lighting fixture in which a recess is provided and the box part is fixed to the bottom wall by a fixing screw passing through the bottom wall of the fitting recess, the fixing screw is set closer to the fitting than the center of the bottom surface of the box part. It is characterized by being located on the shallow side of the mating recess.

According to the configuration of this invention, in the shallow part of the fitting recess, the support due to the fitting of the box part of the column is weak, and in the deep part, the holding by the fitting is strong, but the fixing screw is biased toward the shallow part of the fitting recess. As a result, the fixing strength is uniform throughout, and a single fixing screw can be used to securely fix the product.

Embodiment An embodiment of this invention will be explained based on FIGS. 1 to 3. In FIG. 1, reference numeral 1 indicates a support column, and a box portion 2 is provided at the base end. The box part 2 is fitted into a fitting recess 4 on the upper surface of the base 3, and one fixing screw 6 is attached to a back plate 5 that forms the bottom wall of the fitting recess 4.
It is fixed at The base 3 has an upper surface that is inclined toward the front, and the fitting recess 4 has a shallower depth h at the front and a deeper depth H at the rear. The fixing screw 6 is a thumbscrew, and is arranged so as to be biased towards the shallower part of the fitting recess 4 than the center of the bottom surface of the box part 2. The back plate 5 is fixed to the box portion 8 of the base 3 with mounting screws 7 in contact with the lower end of the peripheral wall 4a of the fitting recess 4 of the base 3.

As shown in FIG. 2, the support 1 has a fixed pipe 1a at the bottom and a flexible pipe 1b at the top, and a lamp 9 is provided at the tip. The lamp 9 has a shade 10. The box portion 2 houses lighting components (not shown) such as a ballast, and is provided with a switch 11. 17 is a power cord, which is led out from the base 3.

As shown in FIG.
Attach the boss part 1 of the box body 14 with the mounting screw 13.
5, and the fixing screw 6 is screwed into a screw hole 15 provided in the bottom plate 12. 13a is a bottom plate mounting hole, and 18 is a power cord lead-out notch.

According to this configuration, in the shallow part of the fitting recess 4, the holding by the fitting of the box part 2 of the column 1 is weak, and in the deep part, the holding by the fitting is strong;
Since it is biased toward the shallow part of the fitting recess 4, the fixing strength is uniform throughout, and reliable fixing can be performed with one fixing screw 6. Therefore, even if the flexible pipe portion 1b is bent, the box portion 2
Difficult to lift off.

4 to 8 show other embodiments. In this example, a straight tube fluorescent lamp 20 is used as the lamp 19. 21 is a shade, 22 is a straight fluorescent lamp 20
The flickering prevention magnet 28 is a glow lamp. The column 1 has a threaded portion formed at its lower end and is fixed to the box portion 2 with a nut 23. Box part 3
has a storage recess 24 on the top surface, in which a watch 25 is removably stored. The stabilizer 26 is fixed to the bottom plate 12 of the box part 2 with screws 27. The structure for fixing the box part 2 to the base 3 using the fixing screw 6 is the same as that of the previous embodiment, but the screw hole 16 of the fixing screw 6 is positioned in front of the stabilizer 26. 27
a is the stabilizer mounting hole.

In this way, in this embodiment, the fixing screw 6 for fixing the box part 2 of the support column 1 is placed in front of the stabilizer 26, so the fixing screw 6 does not get in the way, and even when the stabilizer 26 is installed. The box part 2 can be formed compactly. Other structural effects are the same as in the previous embodiment.

In addition, in each of the above embodiments, the box portion 2 of the support column 1
Although the planar shape of the box part 2 is approximately rectangular, the box part 2 may be a trapezoid with a widening front part. In that case, the fixing screw 6 can be positioned at the center of gravity of the trapezoid.
Therefore, it is stable when holding the support 1 and tightening the fixing screw 6, and the installation is easy.

[Effect of idea]

In the stand-type lighting equipment of this invention, the retention by the fitting of the box part of the support is weak in the shallow part of the fitting recess, and the retention by the fitting is strong in the deep part, but the fixing screw is biased toward the shallow part of the fitting recess. This has the effect that the fixing strength is uniform throughout, and reliable fixing can be achieved with a single fixing screw.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a main part of one embodiment of this invention, Fig. 2 is a perspective view of the whole, Fig. 3 is an exploded perspective view thereof, and Fig. 4A is a cutaway view of another embodiment of this invention. A side view, FIG. 4B is a view along the line B-B, FIG. 5 is a cutaway front view, FIG. 6 is a bottom view, and FIG. 7 is an explanatory diagram of the ballast installation.
FIG. 8 is a sectional view of the box portion, and FIG. 9 is a sectional view of the conventional example. 1... Support column, 2... Box part, 3... Base,
4... Fitting recess, 5... Back plate, 6... Fixing screw.

Claims (1)

[Scope of utility model registration request] A box portion is provided at the base end of the support that has the lamp at the tip, and the upper surface of the base has a sloped upper surface,
A fitting recess whose bottom wall is substantially horizontal and into which the lower part of the box part is fitted is provided, and a fixing screw that passes through the bottom wall of the fitting recess and fixes the box part to the bottom wall is attached to the box part. A stand-type lighting device located on the shallower side of the fitting recess than the center of the bottom surface of the stand type lighting device.