JPH0692142B2 - Honeycomb core - Google Patents

Description

TECHNICAL FIELD The present invention relates to a honeycomb core formed by stacking corrugated honeycomb core constituent materials on top of each other.

"Prior art", "Problems to be solved by the invention" In general, a honeycomb core is coated with a predetermined number of strip-shaped material sheets at predetermined positions because it is easy to form a regular honeycomb core having a cell shape. The honeycomb core in an unexpanded state formed by stacking with an adhesive is spread by a suitable spreading means.

However, when the honeycomb core that cannot be formed by the expanding means, for example, when the honeycomb core is formed of a material whose material is soft and easy to expand, when the material is thick and the honeycomb core cannot be formed by expansion Alternatively, in the case of a honeycomb core having a special cell shape, as shown in FIGS. 8A and 8B, a band-shaped honeycomb core constituent material is previously formed into a corrugated shape of a desired shape by an appropriate molding die. , A predetermined number of honeycomb core constituent materials B, B formed in the corrugated shape are sequentially formed by forming the concave portions C, C ... and the convex portions D, D. Arrange in a corresponding positional relationship,
Abutting portions E of the concave portions C, C ... And the convex portions D, D.
The honeycomb core A was formed by bonding E ... with an adhesive F and stacking the honeycomb core constituent materials B, B.

However, conventionally, when the honeycomb core constituent materials B, B ...
The honeycomb core constituent materials B, B ... Are stacked on the basis of one side end, or stacked on the eye side. Therefore, at the time of stacking, the adjacent honeycomb core constituent materials B, B
It is extremely difficult to bond the respective concave portions C, C ... and the contact portions E, E ... of the respective convex portions D, D. Part E
Therefore, it was difficult to form the honeycomb core A having a regular cell shape.

Further, particularly when the honeycomb core constituent materials B, B ... Are extremely soft and easily stretchable, the contact portions E, E
It is very difficult to form a regular honeycomb core A having a cell shape, because a large deviation is likely to occur in.

Since the irregular honeycomb core having a cell shape has uneven strength and the like, it cannot be used depending on the purpose of use, and even if the degree of irregularity is small, for example, the purpose of use is honeycomb. When using the core in an exposed state,
It may not be used, and therefore, in the conventional honeycomb core formed by stacking the corrugated honeycomb core constituent materials, in order to form a regular honeycomb core having a cell shape, a forming operation is performed. In particular, the stacking work is troublesome and requires a lot of man-hours for the work, so that the honeycomb core has a drawback of being extremely expensive.

The present invention has been made in view of the above circumstances, and an object thereof is to form an inexpensive honeycomb core constituent material by stacking the corrugated honeycomb core constituent materials although the cell shape is regular. The present invention is to provide a honeycomb core.

"Means for Solving the Problem" The present invention has been made to achieve the above object, and its technical solution is to sequentially adjoin a predetermined number of corrugated honeycomb core constituent materials. The respective concave portions and the convex portions in the honeycomb core constituent material are arranged in a positional relationship in which the concave portions and the convex portions correspond to each other, and the concave portions and the abutting portions of the convex portions are bonded to each other via an adhesive, In the honeycomb core formed by stacking the honeycomb core constituent materials, the concave portions of the honeycomb core constituent material and the abutting portions of the convex portions, and the concave portions of the honeycomb core constituent material adjacent to each other. An engaging portion is provided to maintain the correspondence with each convex portion.

"Operation" Since the present invention comprises the above means, it operates as follows.
In other words, the corrugated honeycomb core constituent materials are arranged in a positional relationship in which the concave portions and the convex portions of adjacent honeycomb core constituent materials are in contact with each other, respectively, and the contact portions are bonded together. When adhering through the agent, the contact portions of the concave portions and the convex portions are for engaging the concave portions and the convex portions of each other to maintain the corresponding relationship between the concave portions and the convex portions. Since the engaging portion is provided, it is extremely easy to perform alignment when bringing the concave portions and the convex portions of the honeycomb core constituent materials adjacent to each other into contact with each other in a corresponding manner, and Since there is no deviation in the correspondence between the concave portions and the convex portions, it is possible to form a regular honeycomb core having a cell shape.

[Examples] Hereinafter, the present invention will be described based on examples shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 is a honeycomb core, and the honeycomb core 1 is configured as follows.
That is, 2, 2, ... Are the honeycomb constituent materials that constitute the honeycomb core 1, and these honeycomb core constituent materials 2,
2 ... is a corrugated shape in which concave portions 3 and convex portions 4 are alternately and continuously formed by a suitable molding die of a strip-shaped thin plate material or a foil-shaped material (in the embodiment, both ends of the lower side 3a and the upper side 4a, respectively). The length of the opposing inclined sides formed in
3a, concave portions 3 and convex portions 4 having a symmetrical dish-shaped cross-sectional shape having a length of about 1/2 of the upper side 4a are alternately and continuously located, and their inclined sides are linearly connected. Wavy).

An engaging recess 5 having a mountain-shaped cross section is formed in the center of each recess 3, 3, ... Of each honeycomb core constituent material 2 along the width direction of the honeycomb core constituent material 2 and over the entire width direction. Further, at the center of each of the convex portions 4, 4, ..., An engaging convex portion 6 having a mountain-shaped cross section that engages with the engaging concave portion 5 is provided along the width direction of the honeycomb core constituent material 2, and over the entire length in the width direction. Has been formed.

The honeycomb core 1 includes a predetermined number of honeycomb core constituent materials 2, 2 ... Having the above-described configuration, and the concave portions 3, 3 ... 3a, 3a ... and the upper sides 4a, 4a ... Correspondingly contact each other, the engaging recesses 5, 5, ... Are engaged with the respective engaging protrusions 6, 6 ,. The upper sides 4a, 4a ... Are adhered with an adhesive 7 to form each honeycomb core constituent material 2,
It is formed by stacking 2 ...

Since the honeycomb core 1 has the above-mentioned configuration, when the honeycomb core constituent materials 2, 2 ... Are stacked, the engagement concave portions 5 formed in the respective concave portions 3, 3, ... Of the one adjacent honeycomb core constituent material 2, 5 are engaged with the engaging protrusions 6, 6 formed on the respective protrusions 4, 4 of the other honeycomb core constituent material 2 so that the respective recesses 3, 3 ... and the protrusions 4, It is possible to make the lower side 3a and the upper side 4a of 4 ... correspond to each other and to abut, and both honeycomb core constituent materials 2 and 2 are engaged concave portions 5, 5 ... and engaging convex portions 6, 6. Since they are engaged with each other by the engaging portion composed of ..., The correspondence between the lower sides 3a, 3a ... And the upper sides 4a, 4a. Therefore, the formed honeycomb core 1 is formed in a state in which the cells 8, 8 ... Having a substantially regular hexagonal shape are regularly arranged.

FIG. 3 shows another embodiment of the honeycomb core. The honeycomb core 10 is formed in a corrugated shape in which curved concave portions 13 and convex portions 14 are alternately and continuously positioned. The engaging concave portion 5 having a mountain-shaped cross section is formed at the center of each of the
An engaging convex portion 6 that engages with the engaging concave portion 5 is formed at the center of each of the 14, 14, ..., Honeycomb core constituent materials 12, 12, ... Formed along the entire width in the width direction thereof. The engaging recesses 5 in the recesses 13, 13 ... Of the adjacent one honeycomb core constituent material 12 and the protrusions 14 of the other honeycomb core constituent material 12,
It is molded by stacking via the adhesive 7 so that the engaging protrusions 6 in 14 ... Engage.

Therefore, in the honeycomb core 10 having such a configuration, when the honeycomb core constituent materials 12, 12, ... Are stacked, the respective concave portions 13 of the honeycomb core constituent materials 12, 12 located adjacent to each other,
It is extremely easy to position the convex portions 13 and the convex portions 14 and 14, and the contact portions between the concave portions 13 and the convex portions 14 do not shift, so that the honeycomb core 10 having a regular cell shape is formed. Of course, it is possible to form the engaging concave portions 5 and the engaging convex portions 6 to remarkably increase the bonding area. Therefore, the honeycomb core 10 having much higher bonding strength than the conventional one can be obtained.
Can be molded.

In each of the above embodiments, the honeycomb core constituent material 2,
One engaging concave portion 5 having a mountain-shaped cross section is formed in the center of each concave portion 3 and 13 in 12, and one engaging portion 5 having a mountain-shaped cross section is formed in the center of each convex portion 4 and 14. Although the description has been given of the configuration in which the compound convex portions 6 are provided along the width direction of the honeycomb core constituent materials 2 and 12 over the entire length in the width direction, the constitution of the engaging concave portions 5 and the engaging convex portions 6, that is, The shape, the number to be provided, and the like are not limited to the embodiments. The point is that, depending on the corrugated shape of the honeycomb core constituent material, the honeycomb core constituent material may be configured so as to be able to maintain the corresponding relationship between each concave portion and each convex portion of the adjacent honeycomb core constituent material. In a honeycomb core constituent material 2 having a corrugated shape in which concave portions 3 and convex portions 4 each having a substantially dish-shaped cross section are alternately and continuously positioned, as shown in FIG. 2. A plurality of (three in the embodiment) engaging recesses 5, 5 ... Are provided at the center of the lower side 3a of each recess 3 and at the center of the upper side 4a of each protrusion 4. , The engaging recesses 5 in a positional relationship corresponding to the engaging recesses 5, 5.
Are formed to engage with each other, and the protrusions 6, 6 ... of the other honeycomb core constituent material 2 are formed in the respective engagement depressions 5, 5 of one adjacent honeycomb core constituent material 2. May be configured to engage.

According to this structure, it is possible to obtain a honeycomb core that can be engaged more reliably and has extremely excellent adhesive strength.

5a and 5b, as shown in FIG. 5a, the lower side 3a and the convex portion 4 in the concave portions 3, 3 ... Of the honeycomb core constituent material 2.
4, the engaging recesses 5 are formed at the respective centers of the respective upper sides 4a.
5 forming the honeycomb core constituent material 2, and as shown in FIG. 5b, the lower side 3a of each of the concave portions 3 of the honeycomb core constituent material 2 and the upper side 4a of each of the convex portions 4, 4 ... An engaging protrusion 6 that engages with the engaging recesses 5, 5, ...
The honeycomb core is formed by alternately stacking the honeycomb core constituent materials 2 on which 6 ...

Further, as shown in FIGS. 6 and 7, hemispherical or conical engagement concave portions 15, 15 ... Are formed in the central portions of the lower sides 3a, 3a. The engaging recesses 15 are formed in the central portions of the upper sides 4a, 4a ... Of the respective protrusions 4, 4 ,.
Hemispherical or conical engaging projections 16, 16 ...
May be formed.

According to such a configuration, the engaging portion is not exposed on the cell end surface of the formed honeycomb core, so that a honeycomb core having an excellent appearance can be obtained.

"Effects of the Invention" As described in detail above, according to the honeycomb core of the present invention,
When forming the honeycomb core by stacking the corrugated honeycomb core constituent materials, the honeycomb core constituent materials can be easily and surely aligned with each other, and the concave portions of the adjacent honeycomb core constituent materials can be formed with each other. Since there is no deviation in the correspondence between the abutting portion and each convex portion, it is possible to inexpensively form a regular honeycomb core having a cell shape. Conventionally, this type of honeycomb core has drawbacks. The effects that it exerts, such as being wiped out, are remarkably large.

[Brief description of drawings]

1 and 2 show an embodiment of a honeycomb core according to the present invention, and FIG. 1 is a plan view of a main part of the honeycomb core, and FIG.
FIG. 3 is a perspective view of an essential part of a honeycomb core constituent material, FIG. 3 is a plan view of an essential part of another embodiment of a honeycomb core, and FIGS. 4 to 7 show other embodiments of an engaging part, respectively. The fourth
Figures 6 to 6 are perspective views of the essential parts of the honeycomb core constituent material, respectively, and Figure 7 is a sectional view taken along the line EE in Figure 6, and Figure 8
FIGS. A and b show a conventional honeycomb core, FIG. 8a is a plan view of an essential part of the honeycomb core, and FIG. 8b is a perspective view of an essential part of the honeycomb core constituent material. In the drawing, 1 and 10 are honeycomb cores, 2 and 12 are honeycomb core constituent materials, 3 and 13 are concave portions, 3a is a lower side, 4 and 14 are convex portions, 4a is an upper side, 5 and 15 are engaging concave portions, 6 and 16 Is an engaging protrusion, 7 is an adhesive, and 8 is a cell.

Claims (1)

[Claims] 1. A predetermined number of corrugated honeycomb core constituent materials are sequentially arranged in a positional relationship in which each concave portion and each convex portion of the adjacent honeycomb core constituent materials are in contact with each other. Together with these concave portions and the contact portion of each convex portion is bonded via an adhesive, in a honeycomb core formed by stacking each honeycomb core constituent material, each concave portion of the honeycomb core constituent material A honeycomb core, wherein an abutting portion of each convex portion is provided with an engaging portion for holding a corresponding relationship between each concave portion and each convex portion of the honeycomb core constituent material positioned adjacent to each other.