JPH0740250Y2 - Louver for lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a louver for lighting equipment. In particular, it relates to a fixing structure for each louver piece included therein.

[Conventional technology]

A plurality of louver pieces and a louver frame for mounting them,
Forming insertion tongues at both ends of each louver piece, forming a plurality of tongue insertion square holes in the louver frame for receiving each insertion tongue, and corresponding each insertion tongue A louver for a lighting fixture having a structure in which it is inserted into a square hole for inserting a tongue portion and a tip portion thereof is bent is known.

[Problems to be solved by the device]

The above-mentioned conventional structure has a structure in which each insertion tongue is bent from the vicinity of its root. Therefore, the louver piece may not be firmly fixed due to variations in the bending position or the bending angle, which may cause rattling.

The present invention aims to firmly fix each louver piece to the louver frame.

[Means for Solving the Problems]

In the present invention, a deformed square hole is formed near the base of each insert tongue on one side of the louver and diagonally intersects the edge of the square hole for inserting the tongue to receive the insert tongue.

Also, in the insertion tongue, the middle of the edge of the deformation square hole should be pressed against the edge of the tongue insertion square hole, and a part of the edge of the deformation square hole should cross over the edge of the tongue insertion square hole. Transform into.

[Action]

Insert the tongue on one side of the louver into the square hole for inserting the tongue on the louver frame side. In this state, the deformed rectangular hole formed near the base of the insertion tongue obliquely intersects the edge of the tongue insertion square hole that receives the insertion tongue.

After that, the insertion tongue is deformed. A deformed square hole formed near the base of the insertion tongue facilitates this deformation.

Along with the deformation, the edge of the deformed square hole (edge on the insertion tongue side) is pressed against the edge of the square hole for inserting the tongue. A part of the edge of the deformed square hole remains depressed inside the square hole for inserting the tongue, while the rest of the edge rides over the edge of the square hole for inserting the tongue.

The force associated with the pressure contact acts to pull out the louver piece from the square hole for inserting the tongue portion. Therefore, both ends of the cover piece are firmly fixed to the louver frame.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. The mounting frame 8 is previously fixed to the lighting fixture 9 fixed to the ceiling surface. A louver for a lighting device, which will be described below, is attached to the mounting frame 8 in a usual manner.

The louver includes a louver frame 7 mounted on the mounting frame 8 and a large number of louver pieces 1. Each louver piece 1 is parallel to each other,
The louver frame 7 is attached so as to block the inside of the louver frame 7. The louver frame 7 has a side plate 2 inside thereof. Although it also has a function as a louver piece, for convenience of description, it is a part belonging to the louver frame 7. Both ends of each louver piece 1 are fixed to the louver frame 7. Hereinafter, this fixing structure will be described in detail.

Inserting tongues 3 are formed at both ends of each louver piece 1. The louver frame 7 is formed with a plurality of tongue inserting square holes 5 for receiving the respective inserting tongues 3. The tongue insertion square hole 5 is formed in the side plate 2 of the louver frame 7.
Is provided.

Insert each insertion tongue 3 into the corresponding tongue insertion square hole 5.
A deformed square hole 4 that obliquely intersects the edge of the tongue inserting square hole 5 is formed near the base of each inserting tongue 3. The deformed square hole 4 has a V shape. The central portion 41 of the V-shape passes through the tongue-inserting square hole 5, and the both ends 42 of the V-shape bury the tongue-inserting square hole 5. The middle thereof intersects the edge of the tongue insertion square hole 5. The entire deformed square hole 4 must not be pulled out from the tongue insertion square hole 5, and the entire deformed square hole 4 should not be immersed in the tongue insertion square hole 5.

The insertion tongue 3 is pressed against the edge of the tongue insertion square hole 5 at the middle of the edge of the deformation square hole 4, and a part of the edge of the deformation square hole 4 of the tongue insertion square hole 5 is pressed. Transform it to get over the edge. This deformation work is performed after inserting the insertion tongue 3 into the tongue insertion square hole 5. It is the portion outside the deformed square hole 4 that is deformed, and that portion bends in a V shape as shown in FIG. The V-shape in FIG. 3 shows the deformation of the insert tongue 3. Incidentally, the V-shape in FIG. 4 shows the shape of the deformed square hole 4.

The work of deforming the insert tongue 3 is performed by using a special sandwiching tool having a sandwiching surface having a dogleg shape, and firmly sandwiching the insert tongue 3 with it. Along with the deformation, the edge of the deformed square hole 4 (however, the edge on the side of the insertion tongue 3) comes into pressure contact with the edge of the square hole 5 for inserting the tongue. Reference numeral 100 in FIG. 3 represents a pressure welding point. 2 pressure contact points
There are places. Part of the edge of the deformed square hole 4 (pressure contact points 100 and 100
The portion between the two) gets over the edge of the tongue insertion square hole 5.

The V-shaped deformed square hole 4 limits the deformed portion of the insertion tongue 3 and facilitates the deformation. Further, since the deformed square hole 4 obliquely intersects the edge of the tongue-inserting square hole 5, when the insert tongue portion 3 is deformed, somewhere on the edge of the deformable square hole 4 is used to insert the tongue part. Pressure contact with the edge of the square hole 5 without looseness. Therefore, each louver piece 1 having the insertion tongue 3 and the deformed square hole 4 is firmly fixed to the louver frame 7 having the tongue insertion square hole 5.

[Effect of device]

The present invention forms deformed square holes diagonally intersecting the edges of the square holes for inserting the tongue, near the base of the inserting tongue on both ends of each louver,
Also, the insertion tongue is deformed into a desired shape. According to this, each louver piece having the insertion tongue and the deformed square hole can be firmly fixed to the louver frame having the tongue insertion square hole.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which a louver for a lighting device according to the present invention is attached to a lighting device, FIG. 2 is an enlarged front view of a main part of the lighting device, and FIG. 3 is a side view of the part of FIG. 2 viewed from the left side. Figure, 4th
The figure is an enlarged front view showing the end portion of the louver piece in a further enlarged manner. 1 ... Louver piece, 3 ... Insert tongue, 4 ... Deformation square hole, 5
...... Square hole for inserting tongue, 7 ・ ・ ・ Louver frame

Claims (1)

[Scope of utility model registration request] 1. A louver frame comprising a plurality of louver pieces (1) and a louver frame (7) for fixing them, and forming insertion tongues (3) at both ends of each louver piece (1). A plurality of tongue inserting square holes (5) for receiving the respective inserting tongues (3) are formed in (7), and each of the inserting tongues (3) corresponds to the tongue inserting angle. A deformed square hole (4) which is inserted into the hole (5) and near the root of each of the insertion tongues (3) and which intersects diagonally with the edge of the square hole (5) for inserting the tongue. The insertion tongue (3) is in pressure contact with the edge of the tongue insertion square hole (5) in the middle of the edge of the deformation square hole (4), and one of the edges of the deformation square hole (4). A louver for a lighting fixture, characterized in that the portion is deformed so as to ride over the edge of the square hole (5) for inserting the tongue portion.