JP2002310211A - Method of manufacturing honey-comb shock absorber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a honey-comb shock absorber capable of forming bores on the cell wall of a honey-comb block easily and in a short period of time, and forming bores in arbitrary shapes. SOLUTION: The whole surface on one side of a metal foil sheet 10 is masked by the resist printing etc., and removal positions 12 for forming plural bores 11 by the etching are opened on the surface 10a on the other side, which is masked by the resist printing etc. An adhesive 13 is applied or printed to the side faces of plural sheets of the metal foil 10 at prescribed intervals with the removal positions 12 for forming the bores 11 in-between. After that, the metal foil sheets 10 are laminated to form a metal foil laminated block 14. The side faces of the laminated block 14 are developed in the direction of the arrow X, and honey-comb block 15 is formed. The etching is applied to the honey-comb block 15, and plural bores 11 are formed at the removal positions 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a honeycomb buffer device using a metal foil, and more particularly, to a honeycomb buffer for efficiently forming perforations of an arbitrary shape in a cell wall of a honeycomb block in a short time. The present invention relates to a method for manufacturing a device.

[0002]

2. Description of the Related Art Hitherto, it has been known to use laminated honeycomb blocks as collision test members and shock absorbing members of automobiles.

[0003] When the above-described laminated honeycomb block is used for a side impact test of an automobile,
It is necessary to satisfy the characteristics specified by regulations. The characteristic is based on the rigidity of the front of the vehicle, and the load increases as the amount of deformation increases.

[0004] Further, upper and lower limits of the load are set for an arbitrary deformation amount, and it is required that the load be applied within the range.

[0005]

As a laminated honeycomb block conventionally used as a shock absorber, for example,
As shown in FIG. 3, an intermediate plate 2 made of a metal plate or the like is interposed between a plurality of honeycomb blocks 1 having cell openings 1a on the front and rear surfaces. A large number of ventilation holes 3 are formed in order to ensure air permeability between the inside and the outside.

In addition, as shown in FIG. 4, there is also known one having an intermediate plate 2a having no vent hole 3 interposed therebetween.

However, the load characteristics of the laminated honeycomb block 1 using the intermediate plate 2 having such ventilation holes 3 or the intermediate plate 2a having no ventilation holes 3 are plotted in FIG. 5A. As shown in (1), there is a problem that it is difficult to obtain a characteristic that shows a stepwise increase in load and satisfies the required range of linearly increasing load.

[0008] In addition, a metal honeycomb used for an automobile crash test or the like is required to adjust its cushioning characteristics (reaction force characteristics).
For example, as shown in FIGS. 6A and 6B, a method is known in which the honeycomb blocks 1 are stacked in a plurality of layers and assembled, and the strength of the metal honeycomb is changed stepwise (A).

However, in order to change the strength more continuously, it is necessary to further reduce the height and increase the number of lamination steps, and there is a problem that the structure becomes complicated.

[0010] The inventors of the present invention have conducted intensive studies and as a result,
By changing the thickness and foil thickness of the honeycomb block along the axial direction, or providing through holes in the side surfaces of the cells of the honeycomb block to change the strength of the honeycomb block along the axial direction,
Further, a shock absorber has been proposed in which the strength of the honeycomb block can be arbitrarily designed by changing the strength of the honeycomb block stepwise or continuously along the axial direction (Japanese Patent Laid-Open No.
00-274472).

[0011] An object of the present invention is to form a plurality of perforations in the longitudinal direction of the cell wall of a honeycomb block to form the perforations in an axial direction easily and in a short time.
It is still another object of the present invention to provide a method for manufacturing a honeycomb buffer device capable of forming a perforation having an arbitrary shape.

[0012]

According to the present invention, in order to achieve the above object, one side of the entire surface of the metal foil is masked, and at the other side, a removed portion for forming a plurality of holes by etching is opened. Masking, applying or printing an adhesive at a predetermined interval on the side surface of the plurality of metal foils formed in this way with a removal portion for forming the perforation therebetween, and then laminating the metal foils The gist is to form a laminated block, expand the laminated block to form a honeycomb block, and perform etching on the honeycomb block to form a plurality of perforations in the removed portions.

The perforations are etched into an arbitrary shape, and the honeycomb block is etched to form a plurality of perforations at the removed portions, and then the resist is removed.

Further, the present invention masks the entire surface of one side of the metal foil, and masks the other side by opening and removing portions for forming a plurality of perforations by etching. The metal foil was etched to form a plurality of perforations at the removed portions, and the side surfaces of the plurality of metal foils thus formed were coated or printed with an adhesive at predetermined intervals across the perforations. Thereafter, lamination is performed to form a laminated block of metal foil, and the laminated block is expanded to form a honeycomb block.

The perforations are etched into an arbitrary shape, and the honeycomb block is etched to form a plurality of perforations at the removed portions, and then the resist is removed.

The present invention is configured as described above, and masks the entire surface of one side of the metal foil, and opens and removes a portion for forming a plurality of perforations by etching on the other side. After applying or printing an adhesive on a side surface of the formed plurality of metal foils at predetermined intervals across a removed portion for forming the perforation, and then laminating to form a laminated block of the metal foil. Or, while masking the entire surface of one side of the metal foil, opening and removing the removed portions for forming a plurality of perforations by etching on the other side, and masking the plurality of metal foils thus formed by etching. A plurality of perforations are formed in the removed portion, and an adhesive is applied or printed at predetermined intervals across the perforations on the side surfaces of the plurality of metal foils thus formed, and then laminated. To form a laminated block of metal foil, and then expand the laminated block to form a honeycomb block, thereby forming a plurality of perforations in the longitudinal direction of the cell wall of the honeycomb block to form an axial strength. In this case, the perforations can be formed mechanically easily and in a short time,
Further, a perforation of any shape can be formed.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 (a) to 1 (f) show a manufacturing process diagram of a honeycomb buffer device according to a first embodiment of the present invention. This honeycomb buffer device is manufactured by the following steps.

That is, as shown in FIG.
0 is masked by resist printing or the like, and a mask is formed by resist printing or the like while removing portions 12 for forming a plurality of holes 11 by etching on the other side surface 10a.

Then, as shown in FIG. 1B, a predetermined interval is provided on the side surfaces of the plurality of metal foils 10 formed as described above with a removed portion 12 for forming the perforation 11 therebetween. The adhesive 13 is applied or printed, and then, as shown in FIG.
As shown in (c), the metal foils 10 are stacked to form a metal foil laminated block 14.

Then, the side surface of the laminated block 14 is
As shown in FIG. 1 (d), the honeycomb block 15 is formed by extending in the direction of the arrow X, and this honeycomb block 15 is etched, and as shown in FIG. 11 is formed.

Although the perforations 11 are circular in this embodiment, they can be formed in any shape such as a polygonal shape, and can also be arbitrarily set in size or formed in combination. .

Then, as described above, the honeycomb block 1
5 is etched to form a plurality of perforations 11
After forming, a cleaning and a resist removal are performed, and FIG.
As shown in (f), a shock absorber for a honeycomb block is manufactured.

After the honeycomb block 15 is etched to form a plurality of perforations 11 at the above-mentioned removed portions,
It is also possible to use a buffer for the honeycomb block without removing the resist.

In this case, since the step of removing the resist can be omitted, the workability can be improved.

In the above embodiment, the entire surface of one side of the metal foil 10 is masked by resist printing or the like.
A method of opening a removed portion 12 for forming a plurality of holes 11 by etching on the other side surface 10a and performing masking by resist printing or the like is described.
0, a plurality of perforations 11 by etching.
It is also possible to open the removed portion 12 for forming the mask and perform masking by resist printing or the like.

In this case, the above-described first embodiment uses the metal foil 1
It is possible to omit performing different masking operations on the front surface and the rear surface of 0, respectively, thereby improving workability.

Next, FIGS. 2A to 2E show a manufacturing process diagram of a honeycomb buffer device according to a second embodiment of the present invention. This honeycomb buffer device is manufactured by the following steps. is there.

That is, as shown in FIG.
The entire surface (not shown) of one side is masked by resist printing or the like, and a removed portion 12 for forming a plurality of holes 11 by etching on the other side surface 10a is opened and masked by resist printing or the like.

Then, the plurality of metal foils 10 formed as described above are subjected to etching, and the removed portions 12 are etched as shown in FIG.
As shown in (b), a plurality of perforations 11 are formed.

Thereafter, as shown in FIG. 2C, an adhesive 13 is applied or printed on the side surfaces of the plurality of metal foils 10 at a predetermined interval with the perforations 11 therebetween.
As shown in (d), the metal foils 10 are laminated to form a laminated block 14 of the metal foil.

Then, the side surface of the laminated block 14 is
As shown in FIG. 2 (e), the honeycomb block 15 is formed by extending in the direction of the arrow X, and thereafter, washing and resist removal are performed to manufacture a buffer device for the honeycomb block.

Although the perforations 11 are circular in this embodiment, they can be formed in any shape such as a polygonal shape, and the size can be arbitrarily set or formed in combination. .

It is also possible to use a buffer for the honeycomb block without removing the resist after manufacturing the honeycomb block 15. In this case, the step of removing the resist can be omitted, so that the workability can be improved. It is possible.

In the above embodiment, the entire surface of one side of the metal foil 10 is masked by resist printing or the like.
A method of opening a removed portion 12 for forming a plurality of holes 11 by etching on the other side surface 10a and performing masking by resist printing or the like is described.
0, a plurality of perforations 11 by etching.
It is also possible to open the removed portion 12 for forming the mask and perform masking by resist printing or the like.

In this case, the second embodiment uses the metal foil 1
It is possible to omit performing different masking operations on the front surface and the rear surface of 0, respectively, thereby improving workability.

In the present invention, the buffer device for the honeycomb block is manufactured according to each of the embodiments described above. Therefore, when a plurality of perforations are formed in the longitudinal direction of the cell wall of the honeycomb block to increase the strength in the axial direction. The perforations 11 can be easily and mechanically formed in a short time, and the perforations 11 of any shape can be formed.

[0038]

The present invention is constructed as described above, and has the following excellent effects. . When a plurality of perforations are formed in the longitudinal direction of the cell wall of the honeycomb block to form the strength in the axial direction, the perforations can be formed mechanically easily and in a short time. . Perforations of any shape can be formed. . In addition, by forming the perforations in an arbitrary size and area along the longitudinal direction, the strength or impact load of the honeycomb block can be changed stepwise or continuously along the axial direction.

[Brief description of the drawings]

FIGS. 1A to 1F are manufacturing process diagrams of a honeycomb buffer device according to a first embodiment of the present invention.

FIGS. 2A to 2E are manufacturing process diagrams of a honeycomb buffer device according to a second embodiment of the present invention.

FIG. 3 is an exploded perspective view of a conventional buffer device for a laminated honeycomb block.

FIG. 4 is an exploded perspective view of a conventional buffer device for a laminated honeycomb block.

FIGS. 5A and 5B are graph explanatory diagrams comparing the load characteristics of the shock absorber of the present invention and the conventional shock absorber.

FIG. 6 (a) is a front view of a honeycomb block assembled by stacking honeycomb blocks into a plurality of layers in order to adjust a buffering characteristic (reaction force characteristic) as a conventional metal honeycomb, and (b). FIG. 4 is a graph explanatory diagram showing a relationship between a load and a displacement of the laminated honeycomb block of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Metal foil 10a The other side of metal foil 11 Perforation 12 Removal part 13 Adhesive 14 Laminated block 15 Honeycomb block

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichi Kawashima 2-1 Oiwake, Hiratsuka-shi, Kanagawa F-term in the Hiratsuka Factory of Yokohama Rubber Co., Ltd. 3J066 AA23 AA29 BA03 BB01 BC03 BD07 BE03 BF03

Claims (6)

[Claims] 1. A method for masking one entire surface of a metal foil and opening and removing masking portions for forming a plurality of holes by etching on the other side, and forming a plurality of side surfaces of the plurality of metal foils thus formed. Then, after applying or printing an adhesive at a predetermined interval across the removed portion for forming the perforation, a laminate is formed by laminating to form a laminated block of metal foil, and the honeycomb block is expanded by expanding the laminated block. And forming a plurality of perforations in the removed portion by etching the honeycomb block. 2. The method according to claim 1, wherein the perforations are etched into an arbitrary shape. 3. The method for manufacturing a honeycomb buffer device according to claim 1, wherein the resist is removed after the honeycomb block is etched to form a plurality of perforations in the removed portion. 4. Masking the entire surface of one side of the metal foil, masking the other side by removing open portions for forming a plurality of perforations by etching, and etching the plurality of metal foils thus formed. To form a plurality of perforations at the removed portion, and apply or print an adhesive at predetermined intervals across the perforations on the side surfaces of the plurality of metal foils thus formed, and then laminate them. A method for manufacturing a honeycomb buffer device in which a laminated block of metal foil is formed by heating and a honeycomb block is formed by extending the laminated block. 5. The method according to claim 4, wherein the perforations are etched into an arbitrary shape. 6. The method of manufacturing a honeycomb buffer device according to claim 4, wherein the resist is removed after the honeycomb block is etched to form a plurality of perforations at the removed portion.