JPH0239793Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a honeycomb core reinforcement structure.

More specifically, the present invention relates to a honeycomb core reinforcement structure for preventing deformation due to bending or the like of the honeycomb core when the honeycomb core is used as a single unit.

Hereinafter, the present invention will be explained using a honeycomb core rectifier plate and a diffuser plate as examples.

Honeycomb cores are generally composed of a planar assembly of approximately regular hexagonal cells, and have a large aperture ratio and excellent rectification effect, as well as excellent geometric patterns. It is used as a plate and a diffuser plate. However, as shown in FIG. 8, the honeycomb core A has each cell B in the ribbon direction L.
Although there is a cell wall C that is glued across the cell wall, there is no cell wall that is parallel to the stretching direction W, so it is particularly susceptible to deformation such as deflection due to its own weight in the stretching direction W. has. Therefore, conventionally, for example, when forming a large flow regulator 10 with a honeycomb core as shown in FIG.
In particular, a unit honeycomb baffle plate 13 was assembled and formed, in which a reinforcing frame 12 was provided around the periphery of a honeycomb core 11 whose length in the extending direction was formed to be large enough to withstand wind speed. Therefore, the size of the unit honeycomb rectifying plate 13 is limited, resulting in a disadvantage that the aperture ratio becomes small and the rectifying effect also decreases.

Furthermore, as shown in FIG. 10, even when used as a diffuser plate, a unit diffuser plate 15 formed by providing a frame member 14 around the periphery of a honeycomb core 11 formed in a size that does not cause deflection etc. due to its own weight can be used. , is configured to be supported by a mounting bar 17 hanging down from the lower surface of the ceiling via hanging bolts 16, and the size of the unit diffuser plate 15 is limited.
Since it was not possible to form a large size, the large number of frame members 14, mounting bars 17, etc. caused light spots and shadows to easily occur.

This idea was created in view of the above-mentioned circumstances. The honeycomb core has an appropriate length at a predetermined position in a predetermined number of grooves having an appropriate depth formed along the stretching direction of the honeycomb core over the entire length of the honeycomb core in the stretching direction, and By fitting strip-shaped reinforcing plates formed to an appropriate width, the rigidity of the honeycomb core in the expansion direction can be increased with a simple structure without impairing the aperture ratio of the honeycomb core. It is possible to maintain flatness accuracy even when the span in the stretching direction is long, and when using the honeycomb core as a unit, even if the span in the stretching direction is long, deformation such as bending will not occur. The purpose of this study is to propose a reinforcing structure for honeycomb cores.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 shows a first embodiment of the present invention.
In the figure, 1 is a honeycomb core, and a predetermined depth is set parallel to the stretching direction W at a position where the ribbon direction L is approximately divided into three on the end face of one cell 2, 2... of this honeycomb core 1. Groove portions 3, 3 having
is formed over the entire length in the stretching direction. 4,4
is a belt-shaped reinforcing plate, and the reinforcing plates 4, 4 have the same or slightly thinner thickness as the groove portion 3, and are formed to have approximately the same length in the extending direction W of the honeycomb core 1, and It is formed to have substantially the same width as the depth of the groove 3, and is fitted over the entire length of the grooves 3, 3.

2 to 5 show other embodiments,
FIG. 2 shows a reinforcing plate 4 formed to have approximately the same length in the extending direction W of the honeycomb core 1, which is fitted into the groove 3 so that one end of the reinforcing plate 4 protrudes from the end of the honeycomb core 1 by a predetermined length. It is worn. Therefore, according to this embodiment, the honeycomb cores 1 can be connected by the reinforcing plate 4 by fitting the protruding side of the reinforcing plate 4 into the remaining groove 3 of another honeycomb core 1. Therefore, even when connecting these honeycomb cores 1 to form, for example, a larger rectifier plate, light scattering plate, etc., no special connecting means is required to connect the honeycomb cores 1 in the extending direction. Decrease in rectification effect,
It is possible to reduce the occurrence of light spots and the like. In addition, in the embodiment, an example in which the reinforcing plates 4, 4 are provided so as to protrude in the same direction has been described, but a configuration in which adjacent reinforcing plates 4, 4 are provided so as to protrude alternately in the opposite direction of the honeycomb core 1 is also possible. But that's fine.

In FIG. 3, a reinforcing plate 4 formed a predetermined length longer than the length of the honeycomb core 1 in the stretching direction W is fitted into the groove 3 so that both ends of the reinforcing plate 4 protrude from both ends of the honeycomb core 1 by approximately the same length. It is configured as follows. In this embodiment, since the honeycomb core 1 can be attached to a mounting member (not shown) by both protrusions of the reinforcing plate 4, the honeycomb core 1 can be easily attached.

FIG. 4 shows that the reinforcing plate 4, which is formed a predetermined length shorter than the length of the honeycomb core 1 in the extending direction W, is attached to the groove portion 3.
Both ends of the groove portion 3 are fitted in such a manner that substantially the same length remains. Therefore, by alternately connecting the honeycomb core 1 of this embodiment and the honeycomb core 1 of the embodiment shown in FIG. 3, they can be easily connected in the stretching direction without using any special connecting member.

In the case shown in FIG. 5, mounting parts 5, 5 are integrally provided at both ends of one side of the reinforcing plate 4, and the reinforcing plate 4 is provided so that the mounting parts 5 protrude from the end face of the cells 2 of the honeycomb core 1. ing. Therefore, in this embodiment, the honeycomb cores 1, 1 can be easily connected by connecting the mounting portions 5, 5 of each honeycomb core 1, 1 via appropriate mounting members, and the mounting can be easily performed. It is also easy to attach the honeycomb core 1 to other members via the portion 5, and a special attachment bar (not shown) is required, for example, when used as a light scattering plate.

In addition, in the above embodiment, a structure using the reinforcing plate 3 having the same width as the depth of the groove portion 3 has been described, but the width of the reinforcing plate 3 is not limited to this. Furthermore, the quantity and mounting position of the reinforcing plates 3 are not limited to those in the above-mentioned embodiments.

Since the reinforcing structure of the honeycomb core of the present invention has the above configuration, even if the honeycomb core 1 is wide in the stretching direction W, sufficient rigidity is provided against deformation due to bending etc. When used as a single unit, it is possible to use a honeycomb core that is particularly long in the stretching direction W, and for example, when used as a large rectifier plate or a diffuser plate, it is possible to increase the size of the unit honeycomb core. , it is possible to improve the rectification effect and reduce light spots.

Further, as shown in FIGS. 6a and 6b, a blade-like inclined part 6 is formed on the side edge of the reinforcing member 4 on the side where it is buried in the honeycomb core 1, and if this inclined part 6 is a current plate, for example, the upstream side By arranging the light source so as to face it, or, in the case of a diffuser plate, arranging it so as to be located on the side opposite to the light source side, it is possible to further improve the rectifying effect and reduce light spots.

Note that the grooves 3 can be easily formed by forming them at the stage of molding the unexpanded honeycomb core 7, as shown in FIG.

The reinforcing structure of the honeycomb core of the present invention has been explained using the rectifier plate and the diffuser plate as examples, but the application of the present invention is not limited to the rectifier plate and the diffuser plate. Of course, when the honeycomb core 1 is intended to be used alone, it can also be used for other purposes.

As described in detail above, according to the present invention, since the structure is as described in the claims, despite the simple structure, the honeycomb core can be used without impairing the aperture ratio of the honeycomb core. As it has become possible to significantly increase the rigidity in the stretching direction of the honeycomb core, it is now possible to maintain the planar accuracy of the honeycomb core even if the span in the stretching direction of the honeycomb core is long, making it possible to use the honeycomb core as a single unit. In this case, even if a honeycomb core that is elongated in the stretching direction is used with a long span, it exhibits excellent effects such as no deformation such as bending.

[Brief explanation of drawings]

1 to 6 show embodiments of the present invention. FIG. 1 is a perspective view of the first embodiment, FIGS. 2 to 5 are perspective views of other embodiments, and FIG. Figures a and b are perspective views of other embodiments of the reinforcing plate,
Fig. 7 is a perspective explanatory view showing the groove forming process of the present invention, Fig. 8 is a perspective view of a honeycomb core, Fig. 9 is a perspective explanatory view of a conventional large rectifier plate, and Fig. 10 is a conventional diffuser plate. FIG. 3 is a cross-sectional explanatory view of the main parts showing the attached state. In the figure, 1 is a honeycomb core, 2 is a cell, 3 is a groove,
4 is a reinforcing plate, 5 is a mounting portion, 6 is a perspective portion, 7 is an unexpanded honeycomb core, W is an expansion direction, and L is a ribbon direction.

Claims (1)

[Scope of utility model registration request] The honeycomb core has an appropriate length at a predetermined position in a predetermined number of grooves having an appropriate depth formed along the stretching direction of the honeycomb core over the entire length of the honeycomb core in the stretching direction, and , a reinforcing structure for a honeycomb core characterized by fitting a band-shaped reinforcing plate formed to an appropriate width.