JP3879153B2 - Lumber for lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a louver for lighting equipment that adjusts orientation such as glare cut.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a lighting fixture in which a louver 51 for securing a light blocking angle is provided in an opening of a fixture body 50. 52 is a lamp socket and 53 is a ballast.
The louver 51 is composed of a V-shaped vertical louver 54 having a large number of notch grooves and a large number of baffles 55 locked to the notch grooves. There was a problem of becoming.
[0003]
As means for solving this problem, there is a louver in which a baffle 56 and a frame 57 are integrally formed as shown in FIG.
[0004]
[Problems to be solved by the invention]
However, as shown in FIG. 8, the baffle 56 has a large number of baffles 56 cut out of a thin metal plate and bent to a light shielding angle. Therefore, the bending angle tends to vary, the light shielding angle changes, and the quality is difficult to stabilize. There was a problem.
Accordingly, an object of the present invention is to provide a luminaire for a lighting fixture that can reduce variations in light shielding angle.
[0005]
[Means for Solving the Problems]
The lighting apparatus louver according to claim 1 is formed on a plurality of baffles that are punched and bent in the longitudinal direction inside both sides of the rectangular flat plate, and are formed on both sides of the rectangular flat plate. engaging the ends of the baffle and the frame connecting via a connecting portion at both ends of the baffles, by collapses to the shoulders of the baffle is bent from the outside of the frame which is parallel to the arrangement direction of the baffle A bent portion having an engagement receiving portion, and the baffle has the connecting portion on one side of the both ends, the shoulders on the other side, and the shoulders formed into an arc shape by the punching process. In addition, the corners on the opposite side of the shoulders of the connecting portion connected to the frame are formed in an arc shape to form an arc corner portion, and viewed from the front end side of the baffle when the baffle is in use. If Parts are configured to mask the arcuate corner portions of the connecting portion.
[0006]
According to the lighting device louver of claim 1, since both ends of the baffle that has been cut and raised engage with the engagement receiving portion of the bent portion, the variation in the light shielding angle can be reduced, and the light shielding angle can be stabilized. Can be stabilized, the strength of the baffle can be increased, and the thickness can be reduced.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, the luminaire for lighting equipment has a frame 1 and a number of baffles 2.
A large number of baffles 2 are cut and raised in one direction inside the peripheral edge of the rectangular flat plate and face each other, and the peripheral edge of the rectangular flat plate is used as a frame 1. The frame 1 has a bent portion 3 which is bent at the outer peripheral edge thereof and parallel to the arrangement direction of the baffles 2, and an engagement receiving portion 4 which engages with both ends of the baffle 2 is formed in the bent portion 3. is doing. The engagement receiving portion 4 of the embodiment is a notch groove, and the bent portion 3 is bent inward by 90 degrees or more to engage the notch groove 4 with both edges of the baffle 2.
[0008]
This luminaire for a lighting fixture is used by being arranged on the front surface of a lamp of a fixture main body (not shown) of the lighting fixture and having a frame 1 attached to an opening edge. In the embodiment, the frame 1 and the baffle 2 are formed by punching a cut plate or a thin metal plate of a coil material, punching such as cutting or die cutting, and bending. The machining process will be described. As shown in FIG. 1A, a metal thin plate is punched into a predetermined shape to form a baffle 2 and a notch groove as an engagement receiving portion 4 on a rectangular flat plate. In this case, the shape of the baffle 2 is such that the shoulder 5 on the opposite side to the connecting portion 9 in the width direction at both ends is formed in an arc shape, so that the baffle 2 is cut and raised at the edge of the rectangular plate hole 6 left. The arcuate corner portion 6a is formed in one direction, and thus an external appearance directionality P is generated. Next, when the baffle 2 is bent at a predetermined light shielding angle as shown in FIG. 1B, the connecting portion 9 is deformed into a twisted state. As shown in FIG. 1 (c), the broken line 3 is bent 90 degrees or more with the broken line as the folding line 8, and the engagement receiving part 4 is engaged with both ends of the baffle 2.
[0009]
According to this embodiment, since both ends of the baffle 2 that has been cut and raised engage with the engagement receiving portion 4 of the bent portion 3, the variation in the light shielding angle can be reduced, and the light shielding angle can be stabilized. In addition to being stable, the strength of the baffle 2 is increased, and the plate thickness can be reduced, thereby reducing the cost.
Further, in the state of (a) and (b) of FIG. 1, the shape of the hole 6 has a directionality due to the arc-shaped corner 6a, but the bent portion 3 is bent 90 degrees or more as shown in FIG. 1 (c). By doing so, the arcuate corner portion 6a of the hole 6 is closed by the bent portion 3, and the hole looks almost square, so that the directionality is lost, the handling of the louver is improved and the appearance can be improved. Conventionally, when a plurality of luminaires with louvers are arranged in a straight line, there is a problem in that the appearance is deteriorated due to the difference in directionality, and the work of attaching the louvers so as to align the directions becomes complicated.
[0010]
Further, even when the thin metal plate was cut out from the coiled shape, it was wound into the coil shape by forming the bent portion 3 and the notch groove (4) in the frame 1. It is possible to suppress the bending stress due to, and to prevent the louver from being warped. A second embodiment of the present invention is shown in FIGS. In other words, this lighting fixture louver is configured such that the claw portions 10 are formed at both ends of the baffle 2 in the first embodiment, and the claw portions 10 are fitted into the engagement receiving portions 4 of the cutout grooves.
[0011]
According to this embodiment, the bending angle of the bent portion 3 can be close to 90 degrees. Others are common to the first embodiment.
A third embodiment of the present invention is shown in FIG. That is, this luminaire for lighting equipment is formed by deeply forming the notch groove of the engagement receiving portion 4 and bending the folded portion 3 at about 180 degrees in the first embodiment.
[0012]
In this embodiment as well, the directionality in appearance is more difficult to understand than in the first embodiment. Others are the same as those in the first embodiment.
In addition, in this invention, although the engagement receiving part 4 was a notch groove, it may be a hole.
[0013]
【The invention's effect】
According to the lighting device louver of claim 1, since both ends of the baffle that has been cut and raised engage with the engagement receiving portion of the bent portion, the variation in the light shielding angle can be reduced, and the light shielding angle can be stabilized. Can be stabilized, the strength of the baffle can be increased, and the thickness can be reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a processing step according to a first embodiment of the present invention.
FIG. 2 is a partial perspective view of a louver.
FIG. 3 is a partial plan view of a developed state of the second embodiment.
FIG. 4 is a partial perspective view of the louver.
FIG. 5 is a partial perspective view of a third embodiment.
FIG. 6 is a perspective view of a lighting fixture with a louver removed in a conventional example.
FIG. 7 is a perspective view of another conventional example.
FIG. 8 is a partially enlarged view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 2 Baffle 3 Bending part 4 Engagement receiving part 5 Shoulder part 6 Hole 6a Arc-shaped corner part 8 Folding curve 9 Connection part 10 Claw part

Claims (1)

A plurality of baffles facing each other inside from both sides of the rectangular plate are many punching processed and bent in the longitudinal direction, coupled through a coupling portion at both ends of the formed on the both sides of the rectangular flat plate said baffle bent portion having a frame, an engagement receiving portion for engaging the opposite ends of the baffle by being bent from the outside of the frame which is parallel to the arrangement direction of the baffle falls down on the shoulders of the baffles The baffle has the connecting portion on one side of the both ends, the shoulders on the other side, the shoulders are formed into an arc shape by the punching process, and the frame of the connecting portion The corners on the opposite side to the shoulders of the continuous portion are formed in an arc shape to form an arc corner portion, and when viewed from the front end side of the baffle when the baffle is used, the bent portion is connected to the connection portion. Part of the arc Luminaire louver parts are obscure configure.

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