JPH04184807A - Accessory fitting frame for system ceiling lighting apparatus - Google Patents

Abstract

PURPOSE:To surely fix an accessory by easy work by providing a square hole engaging part on a vertical surface of a fitting foot retaining an apparatus main body, and mutually engaging in reverse directions hook type locking pieces of a pair of fitting frames. CONSTITUTION:A square hole engaging part 7 is provided on a vertical surface of a fitting foot 4 retaining a lighting apparatus main body, and hook type locking pieces 8, provided on a fitting frame long side 9 of an accessory 11, are engaged in reverse directions at every paired long sides. This is the same as for fitting frame short sides vertical to the long sides. Consequently the disengaging and falling of the accessory are unocurring even when right and left vibration is given, obtaining an accessory fitting frame, for a system ceiling lighting apparatus, with easy work and sure fixing of the accessory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an accessory mounting frame for a system ceiling lighting fixture, which is mounted on two beams having an inverted T-shaped cross section.

[Conventional technology]

A system in which a plurality of beams (hereinafter referred to as T-bars) with a cross-sectional shape that is approximately inverted are stretched parallel to the ceiling surface, and are mounted on the T-bars together with a ceiling plate to configure a recessed lighting fixture. Generally, as shown in FIG. 5, ceiling lighting equipment is made by extending two socket stands 2 facing each other, each with mounting legs 4 on both sides, across two parallel T-bars 1. Both ends of the socket base 2 are connected in a frame shape with two vertical beams 3, a lighting device box 6 is attached to the upper part of the frame, and a separator 12 is installed to cover the bottom and front surfaces of the sockets attached to the socket base 2. , and a reflecting plate 13 inserted between these opposing separators 12 constitute a fixture main body of the embedded lighting fixture. When used as a recessed lighting fixture with an open bottom, use a shallow lighting fixture as shown in the right half of Figure 5, and if accessories 11 such as a louver or transparent cover are attached to the bottom, a height adjustment mechanism is provided. As shown in the left half of FIG.
The structure is such that an accessory mounting frame 9 and an accessory 11 can be mounted between the lower end of the bar 1 and the lower edge of the reflecting plate 13.

In the conventional method of fixing the above-mentioned accessory mounting frame, the mounting frame is formed with the lighting fixture main body installed, so as shown in FIG. Fix the long side 9 of the mounting frame with screws, and attach the short side 10 of the mounting frame to both ends of the long side 9 of the mounting frame. They were each engaged and screwed together to form a frame shape.

Further, as shown in FIG. 7, a screw hole 14 is provided in the mounting leg 4.
A square hole 7 is provided instead, and a hook-shaped engagement piece 8 is provided on the long side 9 of the mounting frame.
There is also a method in which the short sides 10 of the mounting frame are attached to both ends of the long side 9 of the mounting frame with screws to form a frame shape after the mounting frame 10 is provided in the vertical direction and engaged with the square hole 7.

[Problem to be solved by the invention]

The above-mentioned conventional technology has a problem of poor workability because eight screws are required to form the mounting frame.

In addition, when a square hole is provided on the mounting leg, the hook-shaped engagement piece on the long side of the mounting frame engages with the square hole.Since the engagement with the square hole is vertical, when installing accessories, the mounting frame is There was a risk that the device would be lifted up, creating a gap with the edge of the T-bar, or that the engaging portion would come off and fall.

An object of the present invention is to obtain an accessory mounting frame for a system ceiling lighting fixture that is easy to construct and can securely fix accessories.

[Means to solve the problem]

The above purpose is to create an accessory mounting frame for a system ceiling lighting fixture that is mounted on two parallel ceiling beams that have an approximately inverted T-shaped cross-section, so that the mounting legs that hold the fixture body of the lighting fixture are perpendicular to each other. On the face.

An engaging part with a square hole is provided, and at least two or more hook-shaped locking pieces cut and raised in the same longitudinal direction are provided on the long sides of the accessory mounting frame, and a pair of the mounting frames facing each other are provided. Engage the locking pieces on the long sides in the square holes of the above-mentioned engagement part in opposite directions,
This is achieved by connecting both ends of the long sides of the mounting frame with a pair of short sides of the mounting frame to form a frame shape.

[For production]

The main body of the system ceiling lighting fixture, which is capable of height am, consists of a socket base, side beam, mounting legs, lighting device box, separator, reflector, etc., and is mounted on a T-par using the mounting legs. It is attached with screws, springs, etc. Unlike when using it as an open type lighting fixture, when using it with accessories such as a louver or transparent cover, move the joining position of the mounting leg and the fixture body to adjust the connection between the fixture body and the lower edge of the T-bar. A gap is provided in between, an accessory mounting frame is installed in the gap, and an accessory is attached to the accessory mounting frame.

At least four of the above-mentioned mounting legs are used to mount and fix the main body of the instrument on the T-par, and the vertical surface of the above-mentioned mounting legs is provided with a square hole engagement part, and the above-mentioned square hole engages At least two matching hook-shaped locking pieces are cut and raised in the same longitudinal direction of the long side of the mounting frame, corresponding to the mounting interval of the mounting legs, and the long sides of the pair of opposing mounting frames are The hook-shaped cut and raised pieces are moved in opposite longitudinal directions to engage with the square hole engaging portions, and both ends of the long sides of the mounting frame are connected by a pair of short sides of the mounting frame. Forms the accessory mounting frame,
The cut and raised locking pieces provided on the mounting frame as described above are cut and raised in the horizontal direction and are locked to the engaging parts of the mounting legs, and the long sides of the mounting frame on both sides are moved in opposite directions. Because it is locked,
The mounting frames are prevented from moving up and down, and both ends of the long sides of these mounting frames are fixed with the short sides of the mounting frames to form a frame shape, so the formed mounting frames are fixed to the mounting legs,
Even if the short side of the mounting frame is screwed, the number of screws to be screwed can be reduced by half compared to conventional methods, and the mounting frame will not be lifted up or the engaging part will come off when accessories are attached. Accessories can be securely fixed without any problems.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing an embodiment of an accessory mounting frame for a system ceiling lighting fixture according to the present invention.

FIG. 2 is a partial sectional view of the above embodiment, FIG. 3 is a partially exploded perspective view of the above embodiment, and FIG. 4 is a sketch showing the engagement direction of the accessory mounting frame in the above embodiment.

When using system ceiling lighting fixtures as open-bottom lighting fixtures, the fixture itself can be used as a cast-molded lighting fixture, but accessories 11 such as louvers and translucent covers may be attached and used. In this case, the above mounting leg 4
Lift the device body upward using the mounting height adjustment means provided in the top of the screen, and create a gap between the bottom surface of the device body and the lower edge of the T-bar 1 as shown in the left half of Figure 5 to provide deep illumination. An accessory mounting frame is installed in the above-mentioned gap, and an accessory is attached to the above-mentioned mounting frame. The above accessory mounting frame is
In order to be able to share a part of the T-bars 1 even if their spacing is different, such as 320 m1 or 330 m, they are formed into a frame shape using a pair of the long side 9 of the mounting frame and the short side 1o of the mounting frame. It is.

As shown in FIGS. 2 and 3, the long side 9 of the mounting frame is
The mounting leg 4 is formed into a U-shaped beam shape in cross section, and the mounting legs 4 are attached by two or more hook-shaped cut-outs in the same longitudinal direction of the long side 9 of the mounting frame at positions corresponding to the intervals. Stop piece 8
, and the short side 1 of the mounting frame is provided near both ends of the long side 9 of the mounting frame.
0 mounting holes are provided for each.

On the other hand, the mounting leg 4 having a vertical slot for height adjustment is
A locking square hole 7 for inserting and locking the locking piece 8 on the vertical surface and a fixing spring 5 for locking the mounting leg 4 to the T-bar 1 are provided.
Usually, two or more are attached to each side of one instrument body.

To assemble the accessory mounting frame, insert the long sides 9 of the two mounting frames into the locking square holes 7 provided in the mounting legs of the instrument body so that the locking pieces 8 are cut in opposite directions. And the third
The locking piece 8 is locked in the square hole 7 by moving in the opening direction of the cut and raised portion as shown by the broken line arrow in the figure. Next, the short side 10 of the mounting frame is brought into contact with both ends of the long side 9 of the mounting frame and fixed with screws. A plan view of the mounting frame assembled as above,
FIG. 4 shows the direction in which the locking piece 8 is cut and raised on the long side 9 of the mounting frame and the broken line arrow indicating the moving direction of the long side 9 during locking.

As mentioned above, the long side 9 of the accessory mounting frame is locked into the square hole 7 of the mounting leg 4 by the cut and raised locking pieces 8 facing in opposite longitudinal directions, so that the long side 9 of the accessory mounting frame is is prevented from moving up or down the state. Furthermore, since both ends of the long side 9 of the mounting frame are fixed to the short side 10 of the mounting frame, the assembled accessory mounting frame is fixed to the mounting leg 4 of the instrument main body, and even when the accessory 11 is attached,
The accessory 11 can be securely fixed without the mounting frame being lifted upward or the engaging portion coming off.

In the above embodiment, the short side 1o of the mounting frame is screwed to both ends of the long side 9 of the mounting frame, but compared to the conventional example, the number of screwed places is reduced by half, making it possible to work at high places when installed on the ceiling. Workability is particularly improved in some cases.

〔Effect of the invention〕

As described above, the accessory mounting frame for the system ceiling lighting device according to the present invention is mounted on two parallel ceiling beams having a substantially inverted cross-sectional shape. An engaging part with a square hole is provided on the vertical surface of the mounting leg that holds the main body of the lighting equipment, and at least two or more hooks cut in the same longitudinal direction are provided on the long sides of the accessory mounting frame. A shaped locking piece is provided,
A pair of opposing long sides of the mounting frame were engaged with the square holes of the engaging part in opposite directions, and both ends of the long sides of the mounting frame were connected by a pair of short sides of the mounting frame to form a frame shape. As a result, the accessory mounting frame can be prevented from moving in the front and back, left and right, and up and down directions, so the mounting frame will not fall due to earthquakes or vibrations, and high safety and reliability can be achieved.

Furthermore, even if the long sides of the same mounting frame are used in opposite directions, and the T-bar spacing is different, the length of the short side of the mounting frame can be adjusted.

Costs can be reduced through mass production, and since the mounting frame is fixed to the mounting leg through engagement, the number of man-hours required for screwing is reduced and workability is excellent.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of the accessory mounting frame for the system ceiling lighting device according to the present invention, Fig. 2 is a partial sectional view of the above embodiment, and Fig. 3 is a partially exploded perspective view of the above embodiment. , Fig. 4 is a sketch showing the engagement direction of the accessory mounting frame in the above embodiment, Fig. 5 is a cross-sectional view of a conventional system ceiling lighting fixture, comparing the presence or absence of accessories, and Fig. 6 is a diagram showing the conventional accessory mounting frame. FIG. 7 is a diagram showing another example of mounting the conventional accessory mounting frame. 1...Ceiling beam with reversed cross section (T bar) 4...Mounting leg 7...Square hole engaging portion 8...Hook-shaped locking piece 9...Long side of accessory mounting frame 10... Accessory mounting frame short side 11...accessories

Claims (1)

[Claims] 1. In the accessory mounting frame for a system ceiling lighting fixture that is mounted on two parallel ceiling beams with an approximately inverted T-shaped cross section, attach the vertical surface of the mounting leg that holds the main body of the lighting fixture to the , an engaging part with a square hole is provided, at least two or more hook-shaped locking pieces cut and raised in the same longitudinal direction are provided on the long side of the accessory mounting frame, and a pair of opposing mounting pieces are mounted. The locking pieces on the long sides of the frame are engaged with the square holes of the engaging part in opposite directions, and both ends of the long sides of the mounting frame are connected by a pair of short sides of the mounting frame to form a frame shape. Accessory mounting frame for system ceiling lighting equipment.