JPH09274808A - Luminaire suspending device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To individually adjust the height of a luminaire and the direction of irradiation thereof with a small number of ropes by fixing one of two suspending ropes of a luminaire, and suspending the other with an adjustable suspending rope. SOLUTION: A suspending rope 5 between a luminaire 1 and an intermediate fitting 2 is fixed, and the length of a suspending rope 4 corresponding to the suspending rope 5 is adjusted by operating a fixture 6, and the direction of the luminaire 1 is adjusted to each condition. A ceiling side fixture 7 is operated so as to adjust the length of the suspending rope 4 between the intermediate fitting 2 and a ceiling hook 3. With this structure, the height of the luminaire 1 can be decided in the condition that the direction of the luminaire 1 is maintained.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device capable of freely changing and fixing the mounting height and irradiation direction of a lighting fixture suspended from a mounting surface such as a ceiling. Regarding 2. Description of the Related Art It is troublesome to fix a desired height position and irradiation direction of a lighting fixture hung from a mounting surface. For this reason, conventionally, a plurality of hanging cords have been used, and such fishing cords have been used. It was decided by adjusting each length. Even in this case, since the adjustment of the length of each string affects the height position and the orientation of the device at the same time, considerable skill was required for the adjustment work in consideration of this. In addition, it is preferable that the number of hanging strings in such a hanging means is as few as possible in terms of installation appearance, and in particular, there is a great demand for window displays and the like. SUMMARY OF THE INVENTION The present invention is to adjust the height position of a luminaire and its irradiation direction to an arbitrary position and angle by using a hanging string of which the number is as small as possible. The purpose is to develop a suspension device that can To this end, according to the present invention, one of at least two hanging strings for hanging a fulcrum of two or more luminaires in a triangular shape is fixed, and the other is hung through a length adjuster. It is configured so that it can be hung from a hanging string whose length can be adjusted by adjusting the position with an intermediate metal fitting to be attached. The other hanging string is hung on the ceiling via a length adjusting tool. Any one of at least two hanging strings hanging in a triangle is continuous from the hanging surface, and further, a hanging string for fixing between the lighting fixture and the intermediate fitting is the fixture. It consists of two suspension cords that respectively support two opposing points on one fulcrum side. An intermediate metal fitting for hanging a lighting fixture in a triangular shape by using at least two hanging cords can adjust the length of one of the two hanging cords to determine the elevation direction of the lighting fixture to any position of 360 °. The height position of the intermediate metal fitting, that is, the height position of the lighting equipment can be determined while the orientation of the lighting equipment is maintained by adjusting one hanging string.
Then, one of the two hanging strings that connect the intermediate fitting and the lighting device can be shared with a single hanging string that suspends the intermediate fitting from the mounting surface. Three-point support of the intermediate metal fitting and one end side of the lighting fixture and the opposite position of the fulcrum and the fulcrum on the other side supports the heavy end of the fixture in a direction directly above or below the irradiation direction. It is effective in stabilizing the fixation. FIG. 1 is a side view showing an embodiment of the device of the present invention, in which a lighting fixture 1, an intermediate fitting 2, a ceiling hook 3, hanging strings 4 and 5, and two lengths are provided. They are fixing tools 6 and 7 as adjusting tools. The intermediate metal fitting 2 is configured such that one hanging string 4 is inserted and the other hanging string 5 is fixed by hanging.
The lower end of the hanging string 4 is tied to a fulcrum 8 on one side (socket side) of the lighting fixture 1, and the lower end of the other hanging string 5 is attached to a fulcrum 9 on the other side (bulb side) of the luminaire 1. In the illustrated embodiment, the hanging string 5 is composed of two strings 5a and 5b. The upper ends of the strings 5a and 5b are fixed to the intermediate metal fitting 2 and the lower ends of the strings 5a and 5b are opposed to each other on the other side of the lighting fixture 1. They are attached to two fulcrums 9 and 9 provided at the respective positions, which are hung by a hanging string 5 between one fulcrum 9 provided right above the lighting fixture 1 and the intermediate fitting 2. It may be configured as follows. The hanging string 4 inserted through the intermediate metal fitting 2 is passed through fixing tools 6 and 7 as length adjusting tools in order, and the fixing tool 7 is suspended on the ceiling hook 3. The fixture 7 suspended from the ceiling hook 3 may be omitted. As the fixtures 6 and 7 in this case, for example, as shown in FIG. 4, a clamping piece 11 is fitted to a cylindrical body 10 whose inner diameter upper end is narrowed, and the clamping piece 11 is narrowed down by an internal spring 12 to an inner wall surface. A well-known structure is used in which the sandwiching state is released by pushing up the sandwiching piece 11 against the spring 12 with the fingertip and pushing up the sandwiching piece 11 against the spring 12. In addition, reference numeral 13 denotes a power line cord of the lighting fixture 1, which may be extended from the ceiling side along the suspension cords 4 or 5 in addition to the state shown in the figure. According to the device of the present invention having such a structure, the hanging string 5 between the lighting fixture 1 and the intermediate fitting 2 is fixed, and the length of the hanging string 4 is fixed by operating the fixing tool 6. 2 or 3 from the state shown in FIG. 1 by adjusting
The orientation of the device 1 is adjusted to each state shown in. Of course, although not shown, the direction of the lighting fixture 1 can be adjusted downward. Next, the fixture 7 on the ceiling side is operated to adjust the length of the hanging string 4 between the intermediate fitting 2 and the ceiling hook 3. This allows the height position of the lighting fixture 1 to be determined while maintaining its orientation.
As can be understood from this, the hanging string 4 is the device 1
It is also possible to use a cord that is divided into a cord between the bracket and the fixture 6 and a cord between the intermediate metal fitting 2 and the fixture 7. According to the suspending device of the present invention, an intermediate metal fitting for fixing one of at least two hanging cords for hanging two or more fulcrums of a lighting fixture in a triangular shape and attaching the other via a length adjuster. Since it was configured to be hung by a hanging strap whose length is adjustable by adjusting the position, the irradiation direction of the lighting equipment could be determined at an arbitrary position of 360 ° only by adjusting the length of one hanging strap. . Furthermore, by suspending the other hanging string on the ceiling via the length adjusting tool, the height position of the device can be determined with the above orientation adjustment, so that these adjusting operations can be performed easily and reliably. You can do it. Further, since it is possible to construct the hanging string with a limited number of the hanging strings, the hanging lighting fixture looks good, and it is particularly suitable for window lighting. The device of the present invention can be applied not only to the illustrated lighting fixture but also to various fixtures including a fluorescent lamp fixture.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of the device of the present invention. FIG. 2 is a side view showing an adjustment state of a lighting fixture by the device of the present invention. FIG. 3 is a side view showing another adjustment state of the lighting fixture according to the device of the present invention. FIG. 4 is a vertical sectional side view showing an example of a length adjusting tool used in the device of the present invention. [Explanation of reference signs] 1 Lighting equipment 2 Intermediate metal fitting 3 Ceiling hooks 4 and 5 Suspension cords 6 and 7 Length adjusting tools 8 and 9 Support points

Claims (1)

Claims: 1. One of at least two hanging strings for hanging a fulcrum of a lighting fixture in a triangular shape is fixed, and the other is adjusted by an intermediate metal fitting attached via a length adjuster. A hanging device for a lighting fixture, characterized in that it is hung with a hanging string whose length is adjustable. 3. The suspension device for a lighting fixture according to claim 1, wherein the other suspension cord is suspended from the ceiling via a length adjuster. 3. The hanging device for a lighting fixture according to claim 1, wherein any one of the at least two hanging strings hanging in the triangle is continuous with the string hanging from the mounting surface. 4. The suspension cord for fixing between the lighting fixture and the intermediate fitting comprises two suspension cords respectively supporting two opposing points on one fulcrum side of the fixture. Hanging device for lighting equipment according to 2.