JPS6331288Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Technology] This invention relates to a louver for a lighting fixture.

[Background technology]

Regarding the structure of a louver configured in a grid, the structures shown in FIGS. 1 and 2 have been proposed. That is, both louver pieces 1 and 2 have the same V-shaped cross section, and the first louver piece 1 has an engagement notch 3 formed at the intersection, and a protrusion 4a on the upper part of the edge of the notch 3. 4b is extended, and a meshing slit 5a is formed above the base of the projections 4a, 4b and at the bottom of the notch 3.
~5d is formed. The second louver piece 2 has a notch 6 for locking at the lower end of the intersection, and an opening hole 7 corresponding to the projections 4a, 4b, and the bottom of the opening hole 7 and the notch 6 for engagement. Engagement slits 8a to 8d that mesh with slits 5a to 5d
is formed.

Assemble the second louver piece 2 as shown by the arrow in Figure 1.
into the notch 3 of the first louver piece 1, and fit the protrusions 4a and 4b into the opening hole 7 to form the meshing slits 5a to 5.
5d and 8a to 8d are engaged with each other.

According to this louver, a lattice-like structure can be easily assembled with one touch, has good dimensional accuracy, and is also excellent in strength.

However, there is a drawback that the second louver piece 2 easily comes off when separated by a small distance l (dimensions of the engaging slits 5c and 5d).

[Purpose of invention]

Therefore, the purpose of this invention is to provide a louver that is difficult to come off and is even easier to assemble.

[Disclosure of invention]

In this invention, in the above structure, the upper edge of the protrusion is bent inward. This makes assembly easier and less likely to come off, as explained below.

An embodiment of this invention is shown in FIG. That is, 1' is a first louver piece, 2' is a second louver piece, 4'a and 4'b are protrusions, 7' is an opening hole, and 5'
c, 5'd, 8'c, 8'd are meshing slits, which bend the upper edges of the protrusions 4'a, 4'b inward, and at the center of the upper edge of the opening hole 7'. Remove the retaining piece 9
It is as follows. Others are the same as in FIGS. 1 and 2.

To assemble, insert the second louver piece 2' into the first louver piece 1' and fit the projections 4'a, 4'b into the opening holes 7'. Since the upper edge is bent inward, it serves as a guide when fitting into the opening hole 7', so the projections 4'a,
4'b can be easily fitted into the narrow opening hole 7'. This allows the opening hole 7' to be made as small as possible, making it difficult for gaps between the louver pieces 1' and 2' to occur due to the opening hole 7' in the intersecting state, and making it easier to strengthen the louver pieces 1' and 2'. Also, meshing slits 5'c, 5'd, 8'c,
In the engaged state of 8'd, the protrusions 4'a and 4'b
Since the upper edge is bent inward and engages with the retaining piece 9, in order for the first louver piece 1' to come off, it is necessary to shift the retaining piece 9 upward by a drooping distance l';′>l, it is less likely to come off than before.

[Effect of idea]

As described above, according to the louver of this invention, an engagement notch is formed at the intersection with a substantially V-shaped cross section, and opposing protrusions are formed on both side edges of the notch, and the base of the protrusion is formed. A first louver piece having an engaging slit formed on the upper side and the bottom of the engaging notch and having the upper edge of the protrusion bent in opposite directions, and a substantially V-shaped cross section having the same shape as the first louver piece. An opening hole corresponding to the protrusion is formed at the intersection, a retaining piece is suspended from the center of the upper edge thereof, and a locking notch is formed at the lower end to engage with the bottom of the engaging notch. However, since these are provided with a second louver piece formed with a meshing slit that meshes with the meshing slit, the following effects can be obtained.

That is, compared to the conventional example, since the protrusions are bent in opposite directions, the first louver piece and the second louver piece are difficult to separate, and the protrusion is easier to fit into the opening, making assembly even easier. This has the effect of making it easier to remove.

[Brief explanation of drawings]

FIG. 1 is a partially exploded perspective view of the proposed example, FIG. 2 is a perspective view of its combined state, and FIG. 3 is a partial perspective view of an embodiment of the invention. 1'...First louver piece, 2'...Second louver piece, 3...Engagement notch, 4'a, 4'b...Protrusion, 5a, 5b, 5'c, 5'd ...Matching slit, 6...Locking notch, 7'...Opening hole, 8a,
8b, 8'c, 8'd...Matching slit, 9...
Retaining piece.

Claims (1)

[Scope of utility model registration request] An engaging notch having a substantially V-shaped cross section is formed at the intersection, opposing protrusions are formed on both side edges of the notch, and engaging slits are provided above the base of the protruding portion and at the bottom of the engaging notch. a first louver piece formed by bending the upper edge of the protrusion in opposite directions; and a cross section approximately V having the same shape as the first louver piece.
A hole is formed in the shape of a letter and corresponds to the protrusion at the intersection, a retaining piece is suspended from the center of the upper edge, and a locking notch is provided at the lower end to engage with the bottom of the engaging notch. and a second louver piece formed with an engaging slit that engages with the engaging slit.