JP2890083B2 - Louver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver for lighting equipment.

[0002]

2. Description of the Related Art A louver of this kind is composed of a baffle support having a substantially V-shaped cross section and a plurality of baffle plates orthogonally arranged with respect to the baffle support. It is arranged on the lower surface of the main body, and controls the light of the lamp emitted from the lower surface of the lighting fixture main body.

A conventional louver has a structure in which a baffle plate can be easily locked to a baffle support as described in, for example, JP-A-60-257003.

The structure is shown in FIGS. 14 and 15. A slit 3 having a width relatively larger than the thickness of the baffle plate 2 is provided in the baffle support 1 having a substantially V-shaped cross section. Also,
The baffle plate 2 is provided with a pair of recesses 4 into which the ends of the slits 3 on both sides of the baffle support 1 are fitted, and an engagement piece 5 is provided on the top side inner surface of the baffle support 1. A pair of protrusions 6 is provided at a position where the protrusions 6 fit inside the pair 3.

The engagement piece 5 is cut and raised from the baffle plate 2 on the opposite side to the direction in which the projection 6 projects, and projects from the baffle plate 2 at an upper bent portion 5a connected to the baffle plate 2. The lower side of the bent portion 5a is arranged parallel to the side surface of the baffle plate 2.

The upper edges of the slits 3 on both sides of the baffle support 1 are fitted into the pair of recesses 4 by fitting the baffle plate 2 into the slits 3 of the baffle support 1 from below. The engagement piece 5 is engaged with the inner surface on the top side of the baffle support 1, and the baffle plate 2 is locked to the baffle support 1.

The projection 6 of the baffle plate 2 has a slit 3
The baffle plate 2 is moved to one side in the slit 3 so as to keep the engagement piece 5 engaged with the inner surface of the baffle support 1.

[0008]

However, in the conventional louver, when the baffle plate 2 is fitted and inserted into the slit 3 of the baffle support 1, the engaging piece 5 projects from the side surface of the baffle plate 2. In addition, if the width of the slit 3 is not relatively wider than the thickness of the baffle plate 2, it is difficult to insert the slit 3 into the slit 3.

This is because the engaging piece 5 is merely cut and raised from the baffle plate 2, so that the outer edge of the engaging piece 5 and the opening 7 opened by cutting and raising the engaging piece 5.
Are almost the same in size as the inner edge of the baffle plate 2 and it is difficult to elastically displace the engagement piece 5 to enter the opening 7 during fitting and insertion into the slit 3. Department
Projecting from 5a and bent at the time of fitting insertion into slit 3
One reason is that it is difficult to elastically displace 5a.

Therefore, since the width of the slit 3 is relatively larger than the thickness of the baffle plate 2, even when the baffle plate 2 is fitted to the slit 3, the gap is formed, and the appearance is impaired and the gap is reduced. There is a problem that light leakage or the like occurs through the light source.

[0011] The present invention has been made in view of the above points, and can easily assemble a baffle plate to a baffle support, and furthermore, it is possible to expose a gap or the like in an assembled state.
Without damage to the appearance or light leakage.
It is an object of the present invention to provide a louver capable of improving the quality.

[0012]

Means for Solving the Problems The present invention according to claim 1 comprises a pair of
A V-shaped baffle support shown cross-section having a side plate portion of the louvers Ru and a plurality of baffle plates that will be orthogonally disposed with respect to the baffle support, <br/> a substantially V of the baffle support the shaped top side, a slit in which the baffle plate is fitted is provided, on said baffle plate, said baffle support
Provided with a pair of engaging portions respectively engaging the outer surface of the pair of side plate portions at both end positions of the slits, the baffle plate
Elastically protrudes from the surface of the baffle plate
The engagement piece to be engaged on the top side inner surface of the baffle support provided, and the engaging piece between the inner edge of the opening which opens by cutting and raising the outer edge portion of the engagement piece opening And the width of the baffle support is less than the plate thickness.
A gap portion to be set is provided.

[0013] According to a second aspect of the invention, in the invention of claim 1, either one of the recesses or protrusions both <br/> ends of slits of the baffle support the edge of the baffle plate is fitted Is established,
Engaging portion, one edge either the concave or convex portion
Ru Der thing was set only.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the gap is formed by an outer edge of the engagement piece and an inner edge of the opening due to relative movement between the baffle plate and the engagement piece. Is provided between them.

[0015]

According to the first aspect of the present invention, when the baffle plate is fitted and inserted into the slit of the baffle support, the engaging piece projecting from the side surface of the baffle plate comes into contact with the edge of the slit, and the engaging piece is formed. It is elastically displaced and penetrates into the opening. When engaging piece enters to the inside of the baffle support together to engage the top side inner surface of the baffle support engagement piece protrudes from the side surface of the baffle plate by the elastic, a pair of engaging portions of the baffle plate respectively engage the outer surface of both ends of the slits of the baffle support.

Therefore, the baffle plate can be easily assembled simply by fitting and inserting the baffle plate into the baffle support. In addition, when the baffle plate is fitted and inserted, the engaging piece portion is elastically displaced and enters the opening. By setting the width of the slit to be substantially the same as the thickness of the baffle plate, the gap between the slits when the baffle plate is fitted to the slit can be set to a minimum. Moreover,
Set the gap between the baffle plates to a width less than the thickness of the baffle support.
Since the setting, the gap is the thickness of the baffle plate in the assembled state
And the gap is not exposed outside the baffle support.
No.

[0017] In the invention of claim 2 is the invention of claim 1, when assembling the baffle plate baffle support, a concave or convex portion provided at the edge of the baffle plate of the baffle support scan <br/> by fitting the both ends of the slit, the concave and convex portion edge functions as the engagement portion, the baffle support scan Lippo <br/> bets of both end positions in the pair of side plate portions that match the engagement on the outer surface.

According to a third aspect of the present invention, in the first or second aspect of the invention, the relative movement between the baffle plate and the engagement piece causes the outer edge of the engagement piece and the inner edge of the opening to move between the outer edge of the engagement piece and the inner edge of the opening. Is provided with a gap.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 6 shows the entire louver. The louver is composed of a baffle support 11 having a substantially V-shaped cross section and this baffle support.
It is composed of a plurality of baffle plates 12 arranged orthogonally to 11.

FIGS. 1 to 5 show the detailed structure of the louver. The baffle support 11 has a pair of side plates 22 bent substantially in a V-shape with a top 21 as a fulcrum. The edge 23 protruding in the direction opposite to is bent. Slits 24 are formed on the top 21 side of both side plate portions 22 corresponding to the fitting positions of the baffle plates 12. The width of the slit 24 is substantially the same as the thickness of the baffle plate 12 and is formed to a width that allows the baffle plate 12 to be fitted and inserted, and the end position of the slit 24 is greater than the height of the baffle plate 12. The height is slightly shorter.

The baffle plate 12 is formed in a horizontally long plate shape, and a pair of concave portions 31 are formed in the upper edge portion of the central portion so that the end portions of the slits 24 of the respective side plate portions 22 of the baffle support body 11 are fitted respectively. At the outer edge of each recess 31, an engagement portion 32 that engages with the outer surface of the end of the slit 24 is formed in an inclined shape in accordance with the inclination of each side plate portion 22.

An engagement piece 33 that engages with the inner surface of the baffle support 11 on the side of the top 21 is provided inside the center of the baffle plate 12. The engaging piece 33 is formed by a narrow connecting portion 34 at the upper portion.
A substantially triangular protruding piece 35 is provided at the lower part of the connecting part 34, and a pair of lower end sides of the protruding piece 35 are respectively engaged with the inner surfaces of the side plate parts 22. The engaging portion 36 is formed in a flat inclined shape in accordance with the inclination of each side plate portion 22. The engaging piece 33 is formed to be inclined so that the lower portion of the protruding piece 35 elastically protrudes from one side surface of the baffle plate 12 with the connecting portion 34 as a fulcrum. When attached to the support 11, the projection 35 is a baffle plate
It can be elastically displaced so that it is substantially the same plane as 12.

An opening 37 is formed by cutting and raising the engaging piece 33, and the opening 37 is formed with the engaging piece.
An opening is formed in a shape similar to the shape of 33, and both sides of the connecting portion 34 and the protruding piece 35 are opened relatively large.

The gap between the edge of the engaging portion 36 of the engaging piece 33 and the lower edge of the protruding piece 35 and the inner edge of the opening 37 is formed by cutting and raising the engaging piece 33. Although there is almost no gap, a gap 38 having a relatively narrow interval is provided by shaving the edge of the protruding piece 35 or the opening 37. The width b of the gap 38 is a width such that the edges do not contact each other when the engagement piece 33 elastically displaces and enters the opening 37, and the thickness of the side plate 22 of the baffle support 11 that it has been set to be equal to or less than the width.

The baffle plate 12 is provided with a suspending support portion 40 having a suspending hole 39 at the center upper edge thereof. When the louver is incorporated in the lighting fixture body, the hanging fixture 39 is inserted into the suspending hole 39. The work can be performed with the louver detached from the lighting fixture main body suspended and supported when the lamp is replaced or the like by hanging the hanging cord pulled out from the lighting device.

A notch 41 is provided at the lower edge of the opening 37.

Next, the operation of this embodiment will be described.

As shown in FIG. 3, the angle .theta.1 between the two engaging portions 32 of the baffle plate 12 corresponds to the distance between the side plate portions 22 of the baffle support 11 in a state where the baffle plate 12 is not assembled. The angle θ2 is large and has a relationship of θ1 <θ2.

Then, the baffle plate 12 is attached to the baffle support 11.
In assembling a first, narrowing the angle between the side plate portion 22 of the baffle support 11. In this state, the central portion of the baffle plate 12 is fitted and inserted into the slit 24 of the baffle support 11 from below.

During the fitting and insertion of the baffle plate 12, the engagement piece 33 projecting from the side surface of the baffle plate 12 comes into contact with the edge of the slit 24. 37
Therefore, the fitting and insertion of the baffle plate 12 can be continued. Further, the ends of the slits 24 of the both side plate portions 22 are fitted into both the concave portions 31 on the upper edge of the baffle plate 12.

[0032] When the engagement piece 33 enters the to the inside of the baffle support 11, the protruding portions by the elasticity of the engagement piece 33
35 project from the side surface of the baffle plate 12, and the engaging portions 36 on both sides of the protruding piece 35 engage with the inner surface of each side plate 22.

[0033] Then, by releasing from narrowing the angle between the side plate portions 22, the engaging portion of the edge of the end portion is the concave portion 31 of the slit 24 of the side plates 22 due to the elasticity of the baffle support 11
Press each against 32.

In this manner, when the baffle plate 12 is fitted and inserted into the baffle support 11, the angle between the two side plates 22 of the baffle support 11 is smaller than the initial angle θ2 by an angle θ.
1 is regulated by both engaging portions 32 of the baffle plate 12,
Due to the elasticity of the baffle support 11 to expand, a pressing force for pressing the two engaging portions 32 of the baffle plate 12 downward is applied, and both the engaging portions 36 of the engaging piece 33 are moved to the side plate portion 22. A pressing force is applied to the inner surface, and the vertical position of the baffle plate 12 is maintained.

Further, due to the elasticity of the baffle support 11 to expand, a pressing force for pressing both the engaging portions 32 of the baffle plate 12 to the side acts, and the plate thickness of the baffle plate 12 is substantially the same. The baffle plate 12 is held by the slit 24 having a width,
Twelve horizontal positions are maintained.

Accordingly, it is possible to easily assemble the baffle plate 12 simply by fitting and inserting the baffle plate 12 into the baffle support 11. In addition, by providing the gap 38 between the engagement piece 33 of the baffle plate 12 and the opening 37, the engagement piece 33 is elastically displaced and The width of the slit 24 can be made substantially the same as the thickness of the baffle plate 12, and the gap between the slits 24 when the baffle plate 12 is fitted to the slit 24 can be minimized.

[0037] In addition, the width of the gap portion 38 of the baffle plate 12,
Due to the narrower than the thickness of the side plate portion 22, as shown in FIG. 2, it is not a name that gap 38 in the state assembled to the baffle support 11 is exposed to the outside of the side plate portion 22.

In forming the gap 38 of the baffle plate 12, it is difficult to form the gap 38 at a narrow interval by punching when the engagement piece 33 is cut and raised. It is necessary to process by a processing method such as processing.

As this processing method, in this embodiment, shaving processing is employed, and the gap 38 can be formed more easily than in the case of laser processing or wire saw processing, which is suitable for mass production.

FIG. 7 shows a second embodiment of the engaging portion 32 of the baffle plate 12. As shown in FIG. In this example,
On the upper edge of the baffle plate 12, both side plates 22 of the baffle support 11
A pair of protrusions 51 are provided to which the ends of the slits 24 are fitted, and engagement portions 32 are provided at the edges of the pair of protrusions 51 to be engaged with the outer surfaces of the ends of the slits 24 of the side plate portions 22. ing.

Next, FIG. 8 to FIG.
A third embodiment for forming the gap 38 is shown. In this embodiment, first, as shown in FIG. 9, the engaging piece 33 is cut out (projected from the side surface of the baffle plate 12) and the opening 37 is punched out by press working.
Then, as shown in FIG. 10, the upper edge 37a of the opening 37 on both sides of the connecting portion 34 is pushed upward by press working, so that the engaging portion 36 of the engaging piece 33 and the edge of the opening 37 are pressed. A gap 38 is formed at a predetermined interval between the gaps. Also in the case of this embodiment, the gap portion 38 can be formed more easily than in the case of laser processing or wire saw processing, which is suitable for mass production.

Further, the engaging piece 33 of this embodiment is
8, the baffle plate 12 is attached to the baffle support 11, and the inner surface of the top 21 of the baffle support 11 is attached to the tip of the projection 35 as shown in FIG. An engaging portion 36 to be joined is formed. The width of the gap 38 between the engaging portion 36 and the edge of the opening 37 is smaller than the thickness of the side plate 22, and the gap 38 is not exposed to the outside of the side plate 22. > stomach.

The upper edge of the opening 37 is provided with a slit-shaped opening 52 for facilitating deformation during press working.
Are formed.

Next, FIGS. 11 to 13 show a baffle plate.
A fourth embodiment of the formation of twelve gaps 38 is shown. In this embodiment, first, as shown in FIG. 12, the engaging piece 33 is cut and raised by press working (the baffle plate 12
And the opening 37 is punched out. At this time, the width between the engaging portion 36 at the tip of the protruding piece 35 and the edge of the opening is relatively wide enough to allow punching by press working. Thereafter, as shown in FIG. 13, the upper edges 40 a of both sides of the hanging support portion 40 are pushed down by press working, so that a predetermined distance is provided between the engagement portion 36 and the edge of the opening 37. Is formed. Also in the case of this embodiment,
The gap portion 38 can be formed more easily than in the case of laser processing or wire saw processing, which is suitable for mass production.

Further, the engaging piece 33 of this embodiment is
35 is formed in a substantially rhombic shape, and as shown in FIG. 11, in a state where the baffle plate 12 is mounted on the baffle support 11,
An engaging portion 36 is formed at the tip of the protruding piece 35 to be joined to the inner surface of the top 21 of the baffle support 11. Then, the engaging portion 36
The width of the gap 38 between the edge of the opening 37 is narrower than the thickness of the side plate portion 22, it is not a name that gap portion 38 is exposed to the outside of the side plate portion 22.

[0046]

According to the invention of claim 1 according to the present invention, since there is provided a gap portion between the engaging piece and the opening of the baffle plate, buffer
Baffle plate is fitted and inserted into the slit of the support
That time, intrusion can der in the opening engagement piece is elastically displaced
Ri, therefore, the width of the slit in the substantially with the thickness of the baffle plate the same,-out <br/> in minimizing the gap between the slit in the assembled state, moreover, the baffle support the gap of the baffle plate Body board
Because the width is set to be less than the thickness, the gap
It fits within the thickness of the full plate and the gap is outside the baffle support.
Exposure to the part can be prevented. Therefore, the baffle support
That the holding body and the baffle plate can be easily assembled
In particular, the exposure of the slit gap and the baffle plate gap
Without damage to the appearance or light leakage.
Ru can improve the resistance.

According to the second aspect of the present invention, when the baffle plate is assembled to the baffle support in the first aspect,
The baffle support a concave or convex portion provided at the edge of the baffle plate
Of the fitting to Rukoto at both ends of the slits, the edge of the recess and convex portions functioning as the engaging portion, the baffle support
To engage the outer surface of the pair of side plate portions at both end positions of the slits, it is possible to simplify the assembly of the baffle support and the baffle plate.

According to the invention of claim 3 , claim 1 or
In 2 of the invention, because Tata provided a gap portion between the relative outer edge of the engaging piece by moving the inner edge of the opening of the baffle plate and the engaging piece, for example, laser machining or wire saw The gap can be formed more easily than in the case of processing, and the productivity of the baffle plate can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a louver of the present invention.

FIG. 2 is a partially enlarged sectional view of the assembled state.

FIG. 3 is an end view of the disassembled state for explaining the assembling method.

FIG. 4 is an end view of the assembled state.

FIG. 5 is a sectional view of the assembled state.

FIG. 6 is a perspective view of the entire louver.

FIG. 7 is a front view of a part of a baffle plate showing a second embodiment of the present invention.

FIG. 8 is an enlarged sectional view of a part of an assembled state showing a third embodiment of the present invention.

FIG. 9 is a front view of a part of the baffle plate.

FIG. 10 is a front view of a part of the baffle plate in which a gap is formed.

FIG. 11 is an enlarged sectional view of a part of an assembled state showing a fourth embodiment of the present invention.

FIG. 12 is a front view of a part of the baffle plate.

FIG. 13 is a front view of a part of the baffle plate in which a gap is formed.

FIG. 14 is a perspective view of a conventional louver.

FIG. 15 is a sectional view of a conventional baffle plate.

[Explanation of symbols]

11 Baffle support 12 Baffle plate 22 Side plate 24 Slit 31 Recess 32 Engagement 33 Engagement piece 37 Opening 38 Gap 51 Convex

Claims (3)

(57) [Claims] 1. A and a substantially V-shaped cross section of the baffle support having a pair of side plate portions, in louver baffle Ru and a plurality of baffle plates that will be orthogonally disposed with respect to the support, the cross-section of the baffle support the top side of the substantially V-shaped, slits the baffle plate is fitted is provided in the baffle plate, respectively on the outer surface of the pair of side plate portions at both <br/> end position of the slits of the baffle support Provide a pair of engaging parts to engage and cut up from the baffle plate
An engagement piece that elastically projects from the surface of the baffle plate and engages with the inner surface on the top side of the baffle support; and an opening that is opened by cutting and raising the outer edge of the engagement piece. If the engaging piece can enter the opening between the inner edge of the part and
A louver characterized by providing a gap portion having a width set to be equal to or less than the thickness of the baffle support . Wherein provided either recesses or protrusions both ends are fitted in the scan <br/> slit baffle support the edge of the baffle plate, the engaging portion, the concave or convex claim 1 louver wherein the digits set to one of the edge parts. 3. A gap between the baffle plate and the engaging piece.
The outer edge of the engagement piece and the inner edge of the opening by the opposite movement
3. The louver according to claim 1, wherein the louver is provided between the louvers.