JPH077009U - Optional parts for system ceiling lighting - Google Patents

Abstract

(57) [Summary] [Purpose] To improve workability and vibration resistance. [Configuration] An optional component 1 such as a louver that is mounted on a ceiling bar having an inverted T-shaped cross section of a system ceiling lighting fixture. In this case, on the lower surface of the option frame 2 of the option component 1, a rotating member 5 is provided rotatably so that the tip of the option frame 2 protrudes outward from the side surface of the option frame 2 and can be vertically moved by horizontal rotation. When the tip of the rotating member 5 protrudes outward, the rotating member 5 is fitted and the rotating member 5
A fitting groove 10 serving as a rotation stopper is provided on the option frame 2 side. Then, the rotating member 5 and the option frame 2 are placed on the horizontal piece of the ceiling bar without protruding the rotating member 5, and the rotating member 5 is rotated so that the tip of the rotating member 5 is projected and the rotating member 5 is optional. The optional component 1 is attached by lowering the frame 2 and fitting the rotary member 5 into the fitting groove 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optional part such as a louver mounted on a ceiling bar having an inverted T-shaped cross section in a system ceiling lighting fixture.

[0002]

[Prior art]

 Among the optional parts such as louvers for system ceiling lighting fixtures, the optional parts that are installed by mounting on the ceiling bar with an inverted T-shaped cross section must be aligned with the lighting fixture and steady rests on the ceiling bar must be applied. There is. Conventionally, there is a method shown in FIG. This is because the mounting spring 3 for positioning is protruded from the option frame 2 of the optional component 1, and the option frame 2 is placed on the horizontal piece 4a of the ceiling bar 4 having an inverted T-shaped cross section. In this state, the mounting spring 3 is elastically contacted with the vertical piece 4b of the ceiling bar 4.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional example has the advantage that the design is good because the mounting bar 3 is invisible after the mounting on the ceiling bar 4, but it also has the following drawbacks. (1) I don't know how to remove it. In other words, since the mounting panel 3 is hidden when the construction is completed, there is no way to know how to remove it without an instruction manual.

(2) There is a risk of lowering the level of anti-vibration performance, and construction is difficult. In the case of such a construction method, one side of the option frame 2 on which the mounting spring 3 is attached must be pressed against one ceiling bar 4, and the other side must be placed on the ceiling bar 4. At this time, the spring force of the mounting spring 3 may be weakened to make it easier to mount. However, when doing so, there is a problem that when left and right vibrations are applied to the ceiling bar 4 while it is on the ceiling bar 4, the ceiling bar 4 easily comes off the ceiling bar 4. On the contrary, if the force of the mounting spring 3 is increased in order to improve the vibration resistance, a large amount of force is required to press the ceiling bar 4, which makes the construction difficult.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an optional component for a system ceiling lighting fixture that can improve workability and vibration resistance.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the optional parts of the system ceiling lighting device of the present invention are the optional parts such as the louvers to be installed by mounting on the ceiling bar 4 having the inverted T-shaped cross section of the system ceiling lighting device. At the time when the tip of the rotary member 5 projects outward, the rotary member 5 is rotatably provided on the lower surface of the option frame 2 so that the tip of the rotary member 5 can be raised and lowered when the tip is projected outward from the side surface of the option frame 2 by horizontally rotating Then, the fitting groove 10 that fits the rotating member 5 to prevent the rotating member 5 from rotating is provided on the option frame 2 side.

[0007]

[Action]

 According to the above configuration, the rotating member 5 and the option frame 2 are placed on the horizontal piece 4a of the ceiling bar 4 in a state where the rotating member 5 is not projected, and the rotating member 5 is rotated to project the tip of the rotating member 5 1. The option frame 2 is lowered with respect to the rotating member 5 and the rotating member 5 is fitted into the fitting groove 10 to mount the optional component 1. By mounting the optional component 1 in this way, it is possible to improve workability and vibration resistance.

[0008]

【Example】

 As shown in FIG. 1, an option frame 2 is provided around an optional component 1 such as a louver, and rotary members 5 are rotatably provided near the four corners of the option frame 2. In this embodiment, the rotating member 5 is a lever 5a and is attached to the latch member 6. As shown in FIGS. 4 and 5, the latch member 6 is composed of a body 6a and a cover 6b, and is attached near the four corners of the option frame 2. A shaft 8 is slidably inserted vertically into an insertion hole 7 extending vertically through the latch member 6, and a base end of a lever 5a is connected to a lower end of the shaft 8. A locking protrusion 9 is provided in the middle of the shaft 8 so as to project in the same direction as the tip of the lever 5a projects, and the shaft 8 has a biasing spring for biasing the lever 5a in the downward direction. I am wearing 1 and 2. Further, when the shaft 8 is projected downward and the lever 5a is not projected outward, a locking groove 11 for locking the locking projection 9 is provided so as to be continuous with the insertion hole 7. When the locking projection 9 is removed from the locking groove 11, the shaft 8 slides up and down together with the locking projection 9 with respect to the insertion hole 7. A fitting groove 10 1 into which the lever 5 a can be fitted is provided on the lower surface of the body 6 a of the latch member 6.

Before the optional component 1 is attached, the lever 5a as the rotating member 5 is retracted so that the tip of the lever 5a does not project outward as shown in FIG. In this state, the lever 5a is projected downward together with the shaft 8, and the locking projection 9 is locked in the locking groove 11 to maintain the projected state. In this state, the option component 1 is arranged between a pair of ceiling bars 4 having an inverted T-shaped cross section, which are laid in parallel, and the lever 5a is placed on the horizontal piece 4a of the ceiling bar 4 and is temporarily supported. In this state, as shown in FIG. 2, the lever 5a slightly rides on the horizontal piece 4a, and the option frame 2 is separated above the horizontal piece 4a. The hatched portion in FIGS. 2 and 3 is a portion hidden by the ceiling bar 4. From this state, as shown in FIGS. 1 (b) and 3, the lever 5a is rotated 90 ° in a horizontal plane to project the tip of the lever 5a, and the tip of the lever 5a is brought into contact with the vertical piece 4b of the ceiling bar 4. Let In this state, the locking projection 9 comes out of the locking groove 11 and the shaft 8 becomes slidable, the option frame 2 descends by its own weight, the option frame 2 rides on the horizontal piece 4a, and the lever 5a is fitted. It fits into the groove 10 and is prevented from rotating. At this time, since the latch members 6 are at the four corners, the above operation is repeated four times to complete the attachment.

[0010]

As described above, according to the present invention, a rotation member is rotatably provided on the lower surface of the option frame, which is an optional part, so that the tip of the option frame is projected outward from the side surface of the option frame and can be moved up and down by horizontal rotation. When the tip of the member protrudes to the outside, a fitting groove that fits with the rotating member to prevent rotation of the rotating member is provided on the option frame side. Place the rotating member and the optional frame on top of it, rotate the rotating member to project the tip of the rotating member, lower the optional frame against the rotating member, and fit the rotating member in the fitting groove. Since there is no member protruding outside from the option frame before installing the optional parts, it can be easily placed on the ceiling bar. In addition, the construction time can be shortened, the fatigue of the operator can be reduced, and the workability can be improved. In addition, the rigid rotating members support the left and right sides, and vibrations add to the ceiling. The optional parts can be used continuously without coming off from the bar, and the option frame floats from the ceiling bar before the completion of construction, and the option frame contacts the ceiling bar after the completion of construction. Therefore, it is possible to clearly discriminate whether or not the construction is completed even if the construction is carried out on the ceiling bar.

[Brief description of drawings]

1A and 1B are views showing an entire embodiment of the present invention, wherein FIG. 1A is a perspective view of a state before construction, and FIG.

FIG. 2 shows the state of the main part before the completion of the above construction, (a)
Is a partially cutaway front view, (b) is a bottom view, and (c) is a side view.

FIG. 3 shows the state of the main part after the above construction is completed, (a)
Is a partially cutaway front view, (b) is a bottom view, and (c) is a side view.

FIG. 4 is a perspective view of a latch member portion of the above.

FIG. 5 is an exploded perspective view of FIG.

FIG. 6 shows a conventional example, (a) is a cross-sectional view after completion of construction,
(B) is a perspective view before construction.

[Explanation of symbols]

 1 Optional parts 2 Optional frame 4 Ceiling bar 5 Rotating member 10 Fitting groove

Claims (1)

[Scope of utility model registration request] 1. An optional part such as a louver which is mounted on a ceiling bar having an inverted T-shaped cross section of a system ceiling lighting fixture, and the tip of the optional frame is horizontally rotated to the lower surface of the optional frame of the optional part. A rotating member that can be raised and lowered outward from the side surface of the rotating member is rotatably provided, and when the tip of the rotating member protrudes to the outside, a fitting groove that fits the rotating member and prevents rotation of the rotating member is optional Optional parts for system lighting fixtures installed on the frame side.