JPH07246435A - Honeycomb panel - Google Patents

Abstract

PURPOSE:To obtain a honeycomb panel improved in strength by installing a reinforcing member at its corner part. CONSTITUTION:A honeycomb panel 10 consists of two face plates 11, 11, a honeycomb like core member 12, binding members 13, 13 which are arranged along the outer circumference between the two face plates 11, 11, and a reinforcing member 15 arranged at the corner part composed of the mutual binding members 13, 13. The binding member 13 consists of welding pieces 13a, 13b which are in contact with the face plates 11, 11, a joining piece 13c joining the welding piece 13a and 13b, and reinforcing plate supporting parts 13d, 13d projecting to the opposite side (core material side) of the welding pieces 13a, 13b. A step 13e between the upper surface of the supporting part 13d and upper surfaces of the welding pieces 13a, 13b is equal to the thickness of the reinforcing plate 15. The face plate 11 is brazed onto the core material 12, the reinforcing plate 15 segmented from a metal plate and the welding pieces 13a,. 13b. The reinforcing plate 15 is brazed onto the face plate 11 and the supporting part 13d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb panel used as a strength member for a railway vehicle structure or the like.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 05-138778 discloses a structure of a railway vehicle using a honeycomb panel. This honeycomb panel includes two face plates, a honeycomb-shaped core material arranged between the two face plates, a coupling member arranged along the outer periphery between the two face plates, and a core between the two face plates. It is composed of a thick plate skeleton member arranged between the core member and the core member, and a reinforcing member arranged at a corner portion formed by the connecting members or the connecting member and the skeleton member. Such honeycomb panels are arranged to form a railway vehicle structure.

[0003]

The reinforcing member at the corner has a U-shaped cross section. Therefore, the reinforcing member is manufactured by bending or is formed by cutting an extruded die member. For this reason, the accuracy of the flatness of the surface of the reinforcing member in contact with the face plate is not good, and brazing with the face plate cannot be sufficiently performed. Therefore, the strength of the corner portion where high stress is generated is not sufficient. An object of the present invention is to improve the strength in a high stress generation part.

[0004]

According to the present invention, a honeycomb-shaped core member and a joining member are arranged between two face plates,
In a Hanika panel in which the joining member is arranged around the face plate, a flat reinforcing plate is provided at a corner portion formed by the two joining members, and the reinforcing plate is arranged between the joining member and the face plate. It is characterized in that it is brazed into pieces.

[0005]

Since the reinforcing plate is brazed between the connecting member and the face plate at the corner, the reinforcing plate can be manufactured by cutting from a flat plate. Therefore, the flatness of the reinforcing plate is good and the face plate can be sufficiently aged. Therefore, the brazing strength of the face plate and the reinforcing plate is improved. Therefore, the reinforcing effect of the reinforcing plate is sufficiently obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 show a joint portion of two honeycomb panels. The contact portion between one honeycomb panel 10 and the other honeycomb panel 10 is joined by welding.

The honeycomb panel 10 has two face plates 11,
11, a honeycomb-shaped core material 12 arranged between the two face plates 11, 11, joining members 13, 13 arranged along the outer circumference between the two face plates 11, 11, and a joining member 13, It is composed of a reinforcing plate 15 installed at a corner portion formed by 13 members.

The connecting member 13 projects from the welding pieces 13a and 13b in contact with the face plates 11 and 11, the connecting piece 13c connecting the welding pieces 13a and 13b, and the opposite side (core material side) of the welding pieces 13a and 13b. The reinforcing plate support portions 13d and 13d are formed. The step 13e between the upper surface of the support portion 13d and the upper surfaces of the welding pieces 13a and 13b is equal to the plate thickness of the reinforcing plate 15. The joining member 13 is an extruded member, and its cross-sectional shape is as shown in FIG.

The face plate 11 is brazed to the core member 12, the reinforcing plate 15, and the welding pieces 13a and 13b. Face plate 11
The reinforcing plate 15 is a plate material having a brazing material clad on one surface. The brazing material surface of the reinforcing plate 15 is the surface side in contact with the supporting portion 13d. As a result, the reinforcing plate 15 is brazed to the face plate 11 and the supporting portion 13d. The reinforcing plate 15 is made of almost three plates.
It is cut into a square shape. However, the core material 12 side of the reinforcing plate 15 has an arc shape. It can be made lighter than when it is straight.

The end face of the core material 12 is the tip of the supporting portion, the reinforcing plate 1
5 are in contact with the respective circular arc surfaces.

After arranging the reinforcing plate 15 as described above, the honeycomb panel is obtained by the same brazing work as in the prior art.

Such a honeycomb panel constitutes the structure of a railway vehicle as in the conventional case. According to this structure, when the two face plates 11 and 11 are pressed when brazing the honeycomb panel, the reinforcing plate is pressed by the support portion 13d and the face plate 11, so that the support portion 13d and the face plate 11 are sufficiently pressed. Brazed to. Further, since the reinforcing plate 15 is cut at the end, the flatness thereof is good and the brazing is sufficiently performed on the face plate 11 and the support portion 13d. Therefore, since the joint strength between the reinforcing plate 15 and the coupling member 13d can be improved without generating strain, the stress generated in this portion can be reduced.

In the embodiment shown in FIG. 3, the supporting portion 13d which is not in contact with the reinforcing plate 15 is cut away. Support part 13
d is only on the reinforcing plate 15. The core material 12 in the portion without the supporting portion 13d is in contact with the connecting piece 13c. According to this, since the support portion of the portion without the reinforcing plate 15 is cut out, the weight can be reduced as compared with the above-mentioned embodiment.

The embodiment shown in FIG. 4 will be described. This embodiment has no supporting portion 13d as compared with the previous embodiments. Connecting piece 1
A step 13f for mounting the reinforcing plate 15 is provided between 3c and the welding pieces 13a, 13b. The joining member 13 is an extruded member, and its cross-sectional shape is as shown in FIG. Other configurations are as in the embodiment of FIGS. 1 and 2.

According to this, the support portion 13d is not required, the notch of the support portion 13d is not necessary as compared with the embodiment of FIG. 3, and the core material 12 is not provided in the portion without the reinforcing plate 15.
The end surface of the can be brought into contact with the connecting piece 13c, and the strength can be improved.

[0016]

As described above, according to the present invention,
It is possible to provide a hanacam panel with improved corner strength.

[Brief description of drawings]

FIG. 1 is a plan view of a honeycomb panel according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a plan view of a honeycomb panel of another embodiment of the present invention.

4 is a view corresponding to FIG. 2 of a honeycomb panel of another embodiment of the present invention.

[Explanation of symbols]

10 ... Honeycomb panel, 11 ... Face plate, 12 ... Core material, 13
... connecting member, 13a, 13b ... welding piece, 13c ... connecting piece, 13d ... support part, 13e, 13f ... step, 15 ... reinforcing plate.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location // B23K 101: 02 (72) Inventor Hitoshi Tsuruta, 794, Higashitoyoi, Kudamatsu City, Yamaguchi Prefecture Hitachi Kasado Factory

Claims (1)

[Claims] 1. A honeycomb panel in which a honeycomb-shaped core material and a joining member are arranged between two face plates, and the joining member is arranged around the face plate, the two joining members are formed. A honeycomb panel, characterized in that a flat plate-shaped reinforcing plate is provided at a corner portion, the reinforcing plate is arranged between the joining member and the face plate, and is brazed individually.