JPH0134250Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a movable wall illumination device that can optimally illuminate a space partitioned by a movable wall.

Background of the invention An example of a movable wall for freely partitioning museums, exhibition halls, wedding halls, conference halls, etc. according to their functions, number of people, etc. is disclosed in Japanese Patent Publication No. 59-48275. . Such a movable wall is suspended by hanging wheels that run along guide rails installed on the ceiling, and by laying and arranging the guide rails at appropriate times, exhibition halls, etc. can be made to any size or size.
It has become popular in recent years because it can be divided into shapes.

In this way, conventional movable walls have been successful in partitioning rooms to some extent, but the lighting in the room is generally fixed at a predetermined spot on the ceiling regardless of the movement of the movable wall. When the shape of a room is appropriately changed using a moving wall, the position of the lighting may not necessarily illuminate the appropriate location.

For example, when exhibiting artwork, the position and direction of lighting for artwork displayed near a movable wall should be adjusted extremely delicately, whereas the conventional lighting fixed to the ceiling as mentioned above should be adjusted very delicately. Standard lighting cannot meet these demands.

In particular, when it comes to illuminating works of art, etc., the direction of the illumination is a major factor in demonstrating its value, so it is desirable to be able to make subtle adjustments.

Furthermore, depending on how the movable walls are placed in wedding halls, conference halls, etc., the lighting may not reach the vicinity of the movable walls, creating a dark atmosphere. may be limited.

Purpose of the invention Therefore, the purpose of the present invention is to provide a lighting device for a movable wall that is capable of illuminating the vicinity of the movable wall and a location somewhat distant from the movable wall from an adjusted and appropriate position and direction. be.

Structure of the invention In order to achieve the above object, the main means adopted by the invention are: a drive shaft installed vertically within the movable wall and rotatable around its axis; a first horizontal arm fixed to the upper end of the drive shaft so as to intersect with the drive shaft; and a first horizontal arm fixed to the top end of the first horizontal arm so as to be swingable in a plane parallel to the swinging plane of the first horizontal arm. Two or more lighting device drive mechanisms comprising a second horizontal arm attached thereto, and a universal joint member provided at the tip of the second horizontal arm so as to be swingable in the horizontal and vertical directions, are installed on the movable wall. A lighting device for a movable wall in which a lighting fixture arranged symmetrically in the longitudinal direction and parallel to the movable wall is attached to the tip of the second horizontal arm so as to be swingable in the horizontal direction via the universal joint member. It is.

Embodiments Next, embodiments embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention.

FIG. 1 is a partial perspective view of a moving wall lighting device according to an embodiment of the present invention, and FIG. 2 is a partial plan view of the same moving wall lighting device.

It should be noted that the following example is only one specific example of the present invention, and is not intended to limit the technical scope of the present invention.

In FIG. 1, reference numeral 1 denotes a movable wall that is suspended from the suspension wheel (not shown) by suspension bolts (not shown) and is moved and arranged along a guide rail (not shown). A drive shaft 2 rotatably supported by a bearing (not shown) is vertically disposed within the movable wall 1. As shown in FIG.

A bevel gear 3 is fixed to the lower end of the drive shaft 2, and a bevel gear 4 having the same shape meshes with the bevel gear 3. The bevel gear 4 has a rotatable power transmission shaft 5 horizontally disposed within the movable wall 1.
A bevel gear 6 is further fixed to the other end of the transmission shaft 5 .

The bevel gear 7 that meshes with the bevel gear 6 is
It is fixed to the upper end of a transmission shaft 8 supported within the movable wall 1 parallel to the drive shaft 2, and a horizontal worm gear 9 is fixed to the lower end of the transmission shaft 8. A worm 10 extending horizontally at right angles to the surface of the movable wall 1 is meshed with the worm gear 9 . A square shaft portion 11 is formed at the shaft end of this worm 10 . The square shaft portion 11 is for engaging with a handle inserted from outside the wall.

On the other hand, a mounting block 12 is fixed to the upper end of the moving shaft 1.
, two first horizontal arms 13a, 13b extending horizontally at right angles to the drive shaft 2 are fixed in a state of protruding in opposite directions with the mounting block 12 as a boundary.

A vertical pin 14 is implanted at the tip of each of the first horizontal arms 13a, 13b, and the second horizontal arm 1 is swingable about this pin 14.
5a and 15b are the first horizontal arms 13, respectively.
It is attached to be swingable in a plane parallel to the swinging surfaces of a and 13b.

At the tips of the second horizontal arms 15a, 15b, a universal joint member 17 is provided which is swingable in a horizontal plane about a vertical pin 16. A horizontal bolt 18 is fixed to each end of the universal joint member 17 opposite to the pin 16, and a bracket 19 is attached to each bolt 18, which is swingable in a vertical plane about the bolt 18. It is being This bracket 19,19
The lighting fixtures 21a and 21b are each supported by.

The above-mentioned drive shaft 2, first horizontal arm 13a, 1
3b, second horizontal arms 15a, 15b, and universal joint member 17 constitute a lighting device drive mechanism 20. However, the reason why the first horizontal arms 13a and 13b are made to protrude on both sides of the drive shaft 2 as described above is because the lighting fixtures 21a and 21 are placed on both sides of the movable wall 1.
b, and when the lighting fixture is attached only to one side of the movable wall 1, for example, the first horizontal arm 13b, the second horizontal arm 15b connected thereto, and the universal joint member 17 may be omitted. is also possible.

In this embodiment, at least two lighting device drive mechanisms 20 as described above need to be arranged in the longitudinal direction of the movable wall 1, as shown in FIG.
In addition, these lighting device drive mechanisms 20, 20 must be arranged symmetrically.

Next, the operation of the above-described embodiment device will be explained.

In FIG. 2, the lighting fixtures 21a and 21b in contact with the movable wall 1 are shown by solid lines. In this state, a well-known handle (not shown) is attached to the square shaft portion 11 of the worm 10, and the worm 10
When rotated clockwise, the transmission shaft 8 rotates in the direction of arrow a in FIG. 1 due to the operation of the worm 10 and the worm gear 9.
A bevel gear 7 provided at the upper end of the bevel gear 7 and a bevel gear 6 meshing with the bevel gear 7 rotate. As the bevel gear 6 rotates, the transmission shaft 5 rotates in the direction shown by arrow b,
This rotation is transmitted to the drive shaft 2 via the bevel gears 4 and 3 as rotation in the direction of arrow c.

When the drive shaft 2 rotates in the direction of arrow c, the first horizontal arms 13a, 13b rotate counterclockwise in plan view. With this movement, the pin 14 provided at the tip of the first horizontal arm 13a moves at a radius r ₁ from the center of the drive shaft 2, indicated by a dashed line 22 in FIG.
move on the trajectory of On the other hand, the distance l between the pins 16, 16 is such that the brackets 19, 19 are
It is constant because it is fixed at a (21b).
Further, the pin 16 cannot move away from the arcuate locus of radius r ₂ with the pin 14 as the center.

Therefore, the pin 16 is perpendicular to the straight line 23 connecting the center points of the drive shaft 2, and the straight line 24 passing through the center of the drive shaft 2.
Always move above. That is, the first horizontal arm 13a
When the lighting fixture 21a is rotated from the stored state shown by the solid line in FIG. 2 to the position 13a' shown by the two-dot chain line,
The pin 16 advances on the straight line 24 and moves to a position 16' (from pin 14' to the second horizontal arm 1
5a to a position separated by length r ₂ ). Such movement is caused by the left and right lighting device drive mechanisms 20, 20.
The same is true for each. This is because the lighting device drive mechanisms 20 are arranged symmetrically as described above. Therefore, the lighting fixture 21a attached by the bracket 19 connected by the pin 16 as described above moves from the solid line position in FIG. 2 to the two-dot chain line position. By rotating the worm 10 in the opposite direction using the handle, the lighting fixture 21a (21b)
approaches moving wall 1.

The above movement is caused by the lighting fixture 2 on the opposite side connected to the first horizontal arm 13b on the opposite side to the first horizontal arm 13a via the second horizontal arm 15b.
The same is true for worm 1b.
By adjusting the rotation amount of 0, the lighting fixture 21a,
By arbitrarily adjusting the distance between 21b and the movable wall 1, it is possible to adjust the suspension positions of the lighting devices 21a and 21b.

Further, the bracket 19 is attached to the universal joint member 17 by a bolt 18 so as to be able to swing around the bolt 18.
By loosening the bracket 19 and the mounting angle of the lighting fixture 21a or 21b attached thereto, it is possible to arbitrarily adjust the mounting angle of the bracket 19 and the lighting fixture 21a or 21b attached thereto, and it is possible to appropriately adjust the irradiation direction of the lighting fixture on the artwork or other illuminated area. This can further enhance the display effect of works of art, etc.

In the above embodiment, the pair of lighting device drive mechanisms 2
Although the lighting equipment is being moved by 0.20,
If the length of the lighting fixture is long, a lighting fixture drive mechanism of the same structure is arranged symmetrically next to the two lighting fixture drive mechanisms 20, 20, and these are connected by another transmission shaft to create a large-sized The lighting devices may be moved simultaneously by three or more of these lighting device drive mechanisms.

Effects of the invention As described above, the present invention consists of a drive shaft that is installed vertically within a movable wall and is rotatable around its axis, and a drive shaft that is fixed to the upper end of the drive shaft so as to intersect with the drive shaft. a second horizontal arm attached to the tip of the first horizontal arm so as to be swingable in a plane parallel to a swinging plane of the first horizontal arm; Two or more lighting device drive mechanisms comprising a universal joint member provided at the tip of the movable wall so as to be swingable in the horizontal and vertical directions are disposed symmetrically in the longitudinal direction of the movable wall, and parallel to the movable wall. The illumination device for a movable wall is characterized in that the disposed illumination fixture is attached to the tip of the second horizontal arm so as to be able to swing in the horizontal direction via the universal joint member. Since the lighting fixtures can be placed in the desired position and the lighting direction can be adjusted arbitrarily, it can be used to illuminate works of art placed anywhere near a movable wall, or relatively far away from lighting fixtures fixed to the ceiling. When lighting a place with
This provides a very convenient lighting device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall structure of a movable wall lighting device according to an embodiment of the present invention, and FIG. 2 is a schematic plan view of the same lighting device. Explanation of symbols, 1... Moving wall, 2... Drive shaft,
3, 4, 6, 7...Bevel gear, 5, 8...Transmission shaft, 9...Worm gear, 10...Worm, 1
3a, 13b...first horizontal arm, 15a, 15
b...Second horizontal arm, 17...Universal joint member,
20...Lighting device drive mechanism, 21a, 21b...Lighting device.

Claims (1)

[Scope of claims for utility model registration] 2 comprising the following elements A, B, C, and D
The above lighting device drive mechanism is arranged symmetrically in the longitudinal direction of the moving wall, and the lighting device is arranged parallel to the moving wall.
A movable wall lighting device characterized in that it is attached to the tip of a second horizontal arm described below so as to be swingable in the horizontal direction via a universal joint member described below. A. A drive shaft installed vertically within the movable wall and rotatable around its axis. B: A first horizontal arm fixed to the upper end of the drive shaft so as to intersect with the drive shaft. C. A second horizontal arm attached to the tip of the first horizontal arm so as to be swingable in a plane parallel to the swinging plane of the first horizontal arm. D. A universal joint member provided at the tip of the second horizontal arm so as to be swingable in the horizontal and vertical directions.