JPH0151331B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a metal honeycomb core used in a sanderch panel, which has a structure that can sufficiently withstand local loads and impacts. The purpose is to ensure the lightness which is an excellent feature of the core, and also to improve workability when assembling sanderch panels using the core.

Conventional sanderch panels using a metal honeycomb core are constructed by bonding plates on both sides of a metal honeycomb core, and by devising the shape of the cells of the metal honeycomb core, the entire panel However, it was possible to obtain a fair amount of strength. However, since the metal core as the core material is a planar aggregate of hollow columnar cells, it has the disadvantage of being vulnerable to loads and impacts to very limited areas.

In addition, when assembling panels and attaching them to desired positions, or when bolting parts to panels, etc., metal honeycomb cores are a collection of hollow columnar cells as described above, so
It is necessary to place an insert member at a desired position or use a rib nut or the like, or it is necessary to perform end treatment so that the end of the metal honeycomb core is not exposed.

For example, the insert member has been assembled by placing it in a predetermined position together with the metal honeycomb core before the plates are bonded, or by inserting it between the metal honeycomb cores after the plates are bonded. It was difficult and time-consuming to fit them together, which was extremely inefficient, and the end treatment of the panels was done by fitting edge materials such as lauan plywood or resin, but this resulted in an unsightly appearance. However, since it was made of solid wood, it had various disadvantages such as increased weight and additional work steps.

The present invention was devised to solve the above-mentioned drawbacks of the metal honeycomb core in the sanderch panel, and embodiments thereof will be described below with reference to the drawings.

That is, FIG. 1 shows a conventional metal honeycomb core 1 in which cells 2 in the shape of short cylinders and hollow columns such as hexagonal columns and cylinders are assembled in a planar manner. The metal honeycomb core 3 of the present invention is produced by crushing the conventional metal honeycomb core 1 by applying a predetermined pressure in the axial direction of the cells 2 as shown by the arrow in FIG. (Second
(see figure).

FIG. 3 shows a sandwich panel 5 constructed by bonding plates 4 to both upper and lower surfaces of the metal honeycomb core 3.

The metal honeycomb core 3 according to the present invention is, as described above, a metal core pressed in a predetermined direction. Therefore, without sacrificing the light weight characteristic of conventional metal honeycomb cores, and without changing the strength of the metal honeycomb core itself, compared to conventional metal honeycomb cores,
It has extremely excellent local load resistance and impact resistance. As an example of strength test, aluminum core (AL
1/8-5052-001○*) are shown in Table 1 of FIG.

Further, since the metal core 3 is made by crushing a hollow columnar cell in the cell axis direction, the bonding area of the panel becomes large, and the bonding of the panel becomes strong. In addition, the metal core 3 itself functions as an insert member, and fasteners such as screws bite into the crushed cells, so it is difficult to assemble the sanderch panel 5 or attach parts to the sanderch panel 5. becomes simple and reliable.

Furthermore, since the end of the metal core 3 itself functions as a border material, there is no need to perform end treatment.

The sanderch panel using the metal honeycomb core according to the present invention is resistant to local loads and impacts, and does not require the use of insert members or rib nuts, making assembly and parts installation reliable and easy. The present invention is excellent and effective because it is highly efficient, does not require terminal processing, and can be robustly achieved.

[Brief explanation of drawings]

Figure 1 is a perspective view of a conventional metal honeycomb core.
FIG. 2 is a perspective view of a metal honeycomb core according to the present invention, FIG. 3 is a partially cutaway perspective view of a sandwich panel formed using the metal honeycomb core according to the present invention, and FIG. This is table 1.

Claims (1)

[Claims] 1. A honeycomb core for a sand beach panel, characterized in that a metal honeycomb core, which is an aggregate of hollow columnar cells, is crushed to a constant thickness by applying a predetermined pressure in the axial direction of the cells.