JPS5929299Y2 - Lighting equipment mounting device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting device for lighting equipment, and its purpose is to prevent the lighting equipment from falling even if an external force such as lifting the lighting equipment is inadvertently applied. There is no lighting fixture mounting device to provide.

Conventionally, this type of lighting equipment mounting device is as shown in Fig. 1, in which a through hole 3 is bored vertically through the base end of a horizontal arm 20 to which a lighting equipment 1 is attached at the tip. Then, the through hole 3 of the horizontal arm 2 is fitted into a pipe-shaped support 5 vertically erected from the base 4, and the horizontal arm 2 is attached to the support 5 so as to be vertically movable and horizontally rotatable. cage, lighting equipment 1
By tilting the horizontal arm 2 due to its own weight, the upper and lower edges of the through hole 3 are brought into contact with the support 5 at each location X and Y, thereby fixing the horizontal arm 2 to the support 5 and holding the lighting fixture 1 in a predetermined position. I was supposed to.

That is, as shown in FIG. By coming into contact with each other, the horizontal arm 2 is fixed at a predetermined height, and
Horizontal rotation was prevented, and the lighting fixture 1 was held in a predetermined position.

On the other hand, as shown in the same figure, if the horizontal arm 2 is made approximately horizontal by slightly lifting the lighting fixture 1 and the axes of the through hole 3 and the support column 5 are approximately aligned, the distance between the through hole 3 and the support support 5 is Since the frictional resistance is almost eliminated, the horizontal arm 2 becomes vertically movable and rotatable, and the lighting fixture 1 can be easily moved to a desired position.

Note that after moving the lighting fixture 1 to the desired position, all you need to do to fix it is to release your hand from the lighting fixture 1.
When the own weight of the horizontal arm 2 is applied to the tip of the horizontal arm 2, the horizontal arm 2 is tilted as shown in FIG.

In the figure, reference numeral 10 designates a pivot portion for vertically rotatably attaching the lighting fixture 1 to the horizontal arm 2, 11 a shade, and 12 a lamp.

By the way, in such a conventional example, the fixation of the lighting fixture 1 is carried out by applying the own weight of the lighting fixture 1 to the tip of the horizontal arm 2, so that the external force from the outside lifts the lighting fixture 1. If added, or shade 11
When an upward force is applied to the lighting fixture 1 in an attempt to turn it upward, that is, when an external force is carelessly applied to the lighting fixture 1 without securely holding it, the horizontal arm 2 suddenly becomes vertically movable. , there was a problem that the horizontal arm 2 and the lighting fixture 1 would fall.

The present invention has been made in view of the above points.

Examples will be described below using figures.

2 to 5 show an embodiment of the present invention, in which a mounting device for a lighting fixture 1 similar to the conventional example shown in FIG. A retaining spring 6 is fitted into a fitting recess 7 formed in the inner surface of the through hole 3.

In the embodiment, the retaining spring 6 is formed in an Ω-shape so that it can be easily fitted onto the outer periphery of the support column 5.

Further, the fitting recess T is formed by a groove extending along the longitudinal direction of the horizontal arm 2.

Now, as shown in Fig. 4a, the lighting fixture 1 is fixed completely as shown in the conventional example (similarly, the horizontal arm 2 is tilted due to the weight of the lighting fixture 1, and the upper and lower edges of the through hole 3 are fixed at each location X, Y). This is done by making it come into contact with the support column 5 so as to bite into it.

On the other hand, by lifting the lighting fixture 1, the horizontal arm 2
When the axes of the through hole 3 and the support column 5 are made approximately horizontal as shown in Figure 4, the direct frictional resistance between the horizontal arm 2 and the support column 5 is almost the same as in the conventional example. It disappears a lot.

However, since the retaining spring 6 fitted into the through hole 3 of the horizontal arm 2 is compressed to the outer periphery of the support column 5,
The horizontal arm 2 cannot move smoothly due to the frictional resistance generated between the holding spring 6 and the support column 5.

In other words, the horizontal arm 2 does not move smoothly just by lifting the lighting fixture 1, but the lighting fixture 1 can be moved to the desired position by intentionally moving the horizontal arm 2 up and down or rotating it against frictional resistance. is now possible.

Therefore, even if an external force such as lifting the lighting fixture 1 is applied inadvertently, the lighting fixture 1 will not fall.

Note that the frictional resistance between the holding spring 6 and the support column 5 is set in consideration of the weight of the lighting fixture 1 and the horizontal arm 2.

In the embodiment, the engagement force of the holding spring 6 with respect to the column 5 is set so that the weight of about 172 or more of the weight of the lighting fixture 1 and the horizontal arm 20 can be supported by the frictional resistance of both 6 and 5, but there are no particular limitations. It is not something that will be done.

FIGS. 6 and 7 show another embodiment, in which both ends of the ring-shaped spring extend in opposite directions so that a retaining spring 6' provided with an operating portion 6a is compressed and attached to the column 5. By pressing the operating part 6a inward as shown by the arrow F, the diameter of the linog part 6b of the retaining spring 6 is expanded, and the frictional resistance between the retaining spring 6' and the strut 5 is almost eliminated. Somehow, this allows the horizontal arm 2 to move smoothly, and the operation can be performed reliably.

In the figure, reference numeral 7' denotes a fitting recess consisting of a cut groove bored at the base end of the pipe-shaped horizontal arm 2, and both ends of the retaining spring 6' fit into this fitting recess 7'. It will be installed.

FIGS. 8 to 10 show still other embodiments,
The support column 5 is formed of a lower pipe 5a and an upper pipe 5b which is inserted into the lower pipe 5a and is movable up and down, and the upper pipe 5b is fixed by a mechanism substantially the same as that of the embodiment shown in FIG. It is.

In other words, the holding spring 6'' is equipped with an operation part 6a for diameter expansion.
By fitting the ring 1B6b into the lower pipe 5b and pressing the operating portion 6a in the downward direction of the arrow, the diameter of the ring 1B6b is expanded and the upper pipe 5b is made vertically movable.

As mentioned above, the present invention involves drilling a vertically penetrating through hole in the base end of the horizontal arm with a lighting fixture attached to the tip, and inserting the through hole into a vertically erected support. Attach a horizontal arm so that it can move up and down and rotate horizontally, and when the horizontal arm tilts due to the weight of the lighting fixture, each part of the upper and lower edges of the through-hole comes into contact with the support, and the horizontal arm becomes the support. The horizontal arm is fixed in place by tilting under the weight of the lighting fixture, so it can be moved freely by lifting it by hand, and it can be moved easily by lifting it by hand. This has the effect of simplifying the configuration and making movement and fixing operations easier as no separate fixing means such as fixing screws are required. Since the retaining spring fits into the fitting recess drilled on the inner surface of the transparent hole of the horizontal arm, the retaining spring and support will not be damaged even if an external force such as lifting a lighting fixture attached to the horizontal arm is inadvertently applied. The horizontal arm and the lighting fixture are held by the frictional force between them, which has the effect that there is no risk that the zero-corner lighting fixture will fall unless an external force greater than the frictional force is applied.

In other words, in the present invention, the horizontal arm is tilted by the weight of the lighting fixture, so that the upper and lower edges of the through hole are brought into contact with the pillar, thereby fixing the horizontal arm to the pillar. This structure allows for easy movement and fixing operations, and allows the holding spring, which is a ring-shaped spring that is compressed around the outer periphery of the column, to fit into the fitting recess drilled on the inner surface of the hole. By attaching it to form a secondary locking means, it is possible to prevent the lighting fixture from falling due to inadvertent application of external force.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1a and 1b are partially cutaway front views showing the schematic structure and operation of the conventional example, FIG. 2 is a sectional view of essential parts of the present invention-embodiment, and FIG. 4A and 4B are sectional views taken along the line BB of FIG. 2, FIG. 5 is a perspective view of the same essential parts, and FIGS. 6 and 7 are other embodiments FIG. 8 is a front view of still another embodiment. FIG. 9 is an enlarged front view of the same as the above, and FIG. 10 is a schematic diagram of the main part. 1 is a lighting fixture, 2 is a horizontal arm, 3 is a through hole, 5 is a support,
6 is a retaining spring, and 7 is a fitting recess.

Claims (1)

[Scope of utility model registration request] A vertically penetrating hole is drilled in the base end of the horizontal arm with a lighting fixture attached to the tip, and the hole is inserted into a vertically erected column, allowing the horizontal arm to move up and down on the column. It is mounted so that it can be rotated horizontally, and the horizontal arm is tilted by the weight of the lighting fixture, so that the upper and lower edges of the through hole are brought into contact with the support column, and the horizontal arm is fixed to the support column. A lighting equipment mounting device characterized in that a retaining spring made of a ring-shaped spring that is fastened to the outer periphery of a support is fitted into a fitting recess formed on the inner surface of a through hole. .