JP2693766B2 - Reinforced composite corrugated body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 《Industrial application fields》   The corrugated body is a strong line formed to meander in the axial direction.
The corrugated corrugated body is joined to the plate-shaped sheet to
High mechanical strength and stability against seed mechanical external force
Reinforcement that enables roll forming at high speed
Regarding the corrugated body. <Conventional technology>   Conventionally, various sands such as corrugated board and honeycomb board
Witch wood is well known, but especially suitable for mass production
Transformed the orthogonal corrugated body represented by the corrugated cardboard
Many improved new corrugated bodies have been announced.
As a representative and suitable conventional example, a core corrugated body is shown in FIGS.
It is shown in Figure 10. However, as a cushion material by itself
Aside from the use of the core corrugated body and two flat sheet
Corrugated board is a new composite corrugated body that is integrated with
Practically still used in high-consumption applications such as
There are no such cases. In addition to mass production, mass production
There is no precedent that has been materialized. In the first place, the various new composite
In order for the rugate body to be put to practical use, at least
Must have such characteristics. 1. A straight corrugated body as represented by the corrugated board structure
And the same as the current composite corrugated body of two flat sheets
Sheet material, etc., equivalent composite corrugated body thickness, equivalent
To 10% to 10% of new corrugated material
The combined corrugated body improves its structural strength by 15% or more.
To be done. That is-high structural strength- 2. A new corrugated body is formed at a processing speed of 50 m or more per minute
Guarantees quality with consistently stable shape and material strength
Roll forming is possible. Ie-add
Excellent workability- 3. As a result, cost-effectiveness, that is, structural strength / product cost
At least 10% gargling of the current composite corrugated body
Or more than 30% improvement is required.   To describe the structural strength that should be provided in more detail,
A new composite core that integrates the new corrugated body and flat sheet
In the rugate body,   Shape condition A-1, flat crash or z-x
It is essential that the shear rigidity in the in-plane x direction is sufficiently high.
For this purpose, the actual amplitude in the shape of the corrugated row is
The rate H / L is required to be greater than 0.4 (see Fig. 1).
(A)).   Shape condition A-2, xy out-of-plane bending rigidity in x direction is sufficient
It is essential that the
Substantial meandering polymerization rate D / L in row shape is greater than 0.5
Is required (see FIG. 1 (b)).   Shape condition A-3, xy in-plane compression rigidity is sufficiently high
And a new corrugated body and flat plate
The joint width w with which the contacts are integrated is as large as possible.
And is desired. (See FIG. 1 (c)).   Of the above three conditions, A-1 and A-2 are combined at the same time
It should be obtained, and if one of them is missing
It does not meet the required structural strength. Also have
For workability, the corrugator
When performing roll forming at high speed
First, in the section of the corrugated row, the bottom and its vicinity, etc.
And stretch strain rate is kept below 5%, then corrugated
Occurrence of tear damage at the neutral axis of the row and its vicinity
Is none, and also the central axis of the valley of the corrugated row
And that there is no occurrence of excess wrinkles.
Which is indispensable, but for that purpose (see Fig. 1
(D)),   Shape condition B-1, width ratio i in the corrugated row direction is
The actual shape of the corrugated row is less than 10%.
The value of the actual amplitude ratio H / L is selected at the same time as the quality meandering ratio D / L.
When.   Shape condition B-2, corrugated row / bottom section is curved
It should be formed in the shape of a chamfer.   Shape condition B-3, the flat meandering shape of the corrugated row slips
It has a kana wave shape, especially corrugations around the central axes of mountains and valleys.
The chamfer with a curved or slightly wide curved surface
To be in a state.   The shape conditions B-1 and B-2 should be satisfied at the same time.
In addition to these conditions, it is desirable that the same condition B-
When 3 is satisfied, workability is further improved. Such a view
From the point of view, what is the decision of the conventional example shown in FIG. 2 to FIG.
Mass production method due to lack of constant shape conditions
Individually described whether it was never put to practical use in
You.   2 to 4 use the conventional new corrugated body alone
It is used for cushioning materials such as glass containers
As a new composite corrugated body integrated with a flat sheet
Is totally inappropriate, and in fact I have found no such thing.
No. The reason is that, as shown in FIG. 2 and FIG.
Obvious in the new corrugated body of the first and second conventional examples
As shown in the figure, the cross section of the corrugated row in the x direction has a substantial amplitude.
The ratio is H / L ≈ 0.15 and H / L ≈ 0.18, so it is the same as the flat sheet.
Even if you get a new composite corrugated body
-The shear rigidity in the x-direction in the x-direction is extremely low, and
This is because it is far behind the structural strength of the ru.   In addition, the new corrugated body of the third conventional example shown in FIG.
, The actual meandering polymerization rate of the corrugated row is D / L ≒ 0.1
It is a very small unit that is integrated with a flat sheet due to its extremely small size of 7.
Even if a combined corrugated body is obtained, its out-of-xy plane is bent in the x-direction.
The rigidity is not much different from that of current corrugated board
According to   However, the features of the first, second and third conventional examples are the new corrugated body itself.
Mass production on an industrial scale by roll forming
The corrugated strip is used for the first and second conventional examples.
The width adjustment ratio i in the column axis direction is H / L so that both i <5%,
D / N is selected, and the third conventional example
Although i> 10%, the workability is extremely large in terms of stretchability.
Rolls (stretching ratio of about 5-7%) for the first time.
Ming is possible. In any case flat them
The new composite corrugated body integrated with the board sheet has structural strength
There is a big drawback that it cannot be put to practical use because it is scarce.
You.   The fourth to ninth conventional examples of FIGS. 5 to 10 are the second to third subordinates.
A typical example is the formation of relatively shallow corrugated rows.
A relatively deep corrugated row can be formed against
The first feature is the new corrugate of the fourth conventional example
The actual swing ratio H / L of the row is 0.7, and the actual meandering polymerization rate D / L is 0.8.
Because of this, a new composite corrugate that is integrated with a flat sheet
The body makes its structural strength extremely high, but
Since the quality meandering ratio D / N is remarkably large at about 0.6,
23% or more and virtually impossible to roll forming
It cannot be put to practical use even though it has sufficient angular strength. Ma
Flat corrugated peaks and valleys in the corrugated row
Since the bent part projects in an acute angle, during roll forming
The work sheet may break near the protrusion.
It has The corrugated row has a sharp top / bottom cross section.
Since it is bent, the joint with the flat sheet is extremely poor.
It can be said that it is difficult to obtain sufficient bonding strength.   The fifth conventional example shown in FIG. 6 is formed deeper than the fourth conventional example.
However, the structural strength is further improved, but the workability is improved.
Will decrease. The actual swing ratio, which represents strength, is H / L
≈ 0.8, substantial meandering polymerization rate D / L ≈ 1.3, which is sufficiently large, but
The width-shifting ratio, which represents the workability, is i> 30%, which is extremely large.
Roll forming is almost impossible to form
Is shown. However, the bending of the central axis of the mountain and valley of the corrugated row
Since the curved part becomes a curved protrusion, during roll forming
The advantage of softening the tearing and stretching strain of the processed sheet
There is.   The sixth conventional example in FIG. 7 is the substantial swing ratio H / L of the fourth conventional example,
The structure is strong because it is formed to resemble the meandering polymerization rate D / L.
The degree is high enough, but the big difference is that the corrugated row
Section / bottom section is formed as a large curved shape
Therefore, the bonding area of the flat sheet is expanded and the structural strength is further improved.
It is above. However, the actual swing ratio H / L≈1.0, the actual meandering ratio D /
Since L ≒ 0.5, which is large, the width adjustment ratio is remarkably large, i> 25%.
Inevitably, as a result, roll forming is impossible
Clearly there is.   In the seventh conventional example shown in FIG. 8, the corrugated row and the bottom are the bases.
The characteristic is that it has a shape, and the contact with the flat sheet is
It is extremely convenient in the case. Also, the actual shaking of the corrugated row
Since the width ratio is as large as H / L ≈ 0.8, the shear rigidity is increased and
Since the meandering polymerization rate is as large as D / L ≈ 0.7, increase the bending rigidity.
Improves overall structural strength. However, H / L ≒ 0.8D / L ≒
When the width is 0.5, the width adjustment ratio is greater than i> 25% and is too large.
Therefore, roll forming is completely impossible and
Around the center axis of the mountain and valley in the plane meandering shape of the rugate row
There is a sharp-angled protrusion, and that protrusion during roll forming
Section causes the sheet to be processed to undergo excessive pressure deformation
Stretching and eventually tearing damage, and top / bottom
The trapezoidal shape forms a wide flat surface, but
Severe stretching strain occurs on the flat surface near the above protrusion.
As a result, stable work formation is difficult.   The eighth conventional example in FIG. 9 is an improvement of the seventh conventional example.
Plane meandering peaks and troughs around the gate axis are trapezoidal
Characterized by being bent. Corrugated row
Since the actual swing ratio is as large as H / L≈0.8, the shear rigidity is sufficient.
High but substantially meandering polymerization rate D / L ≈ 0.3
Is significantly reduced, and as a result, the structural strength is
Not as good as any shape. Moreover, the real swing
Since the width ratio H / L≈0.8 and the actual meandering ratio D / L≈0.3,
The roll width is i = 14%, which is large
It is difficult to move, and the corrugated row has a flat meandering shape.
A pair of sharp-angled protrusions around the central axis of the mountain and valley
Because the sheet to be processed is locally pressed during reforming,
New stretching strain is generated, and trapezoidal like the 7th conventional example
Stable by generating severe stretching strain near the top and bottom of the
Make processing difficult.   It can be said that the ninth conventional example in FIG. 10 is a further improvement of the eighth conventional example.
The actual swing ratio H / L of the corrugated row, the actual
Obtained because the meandering polymerization rate D / L is equivalent to that of the eighth conventional example.
Insufficient structural strength, and substantial meandering ratio D / L
Is almost the same as that of the eighth conventional example, and therefore the width adjustment ratio is i
≈ 14%, which makes roll forming difficult. Again
In addition, the corrugated body has a trapezoidal flat surface at the top and bottom.
The problems that occur during roll forming are No. 7 and No. 8.
It is no different from the conventional example of love. Just the corrugated row plane
Since there is no protrusion in the meandering bent part,
The occurrence of elongation strain and tear damage is less than that of the 8th and 9th conventional examples.
It is effective in suppressing the temperature. However, the roll
Extreme difficulty is the reason why it is difficult to put into practical use
It was a definite reason. <Problems to be solved by the invention>   As shown in the first, second and third conventional examples, corrugated rows
Is formed in a relatively shallow shape,
The gate body is corrugated by roll forming
It has excellent workability that it can be performed stably and at high speed.
On the other hand, the corrugated body and the flat sheet were integrated and obtained.
It is said that the composite corrugated body is forced to have low structural strength.
It has not been put to practical use because of
As shown in the 6th, 7th, 8th, and 9th conventional examples, corrugated strips are used.
Because the rows are formed in a relatively deep shape,
A composite corrugation obtained by integrating the gate body with a flat sheet
While the body has a sufficiently high structural strength, each corrugated body
Is actually formed by roll forming
It has not been put to practical use because it is impossible.
However, the present invention has been made in view of the above problems.
And meander in a smooth plane wave shape in the row axis direction.
The corrugated row is
The ratio H / L of the actual amplitude H of the same waveform
At the same time, the real amplitude D of the plane waveform with respect to the period L is
By making the ratio D / L relatively small, its strength corrugation
Reinforced composite corrugated body that integrates the body and flat sheet
The body enhances the structural strength against various mechanical external forces
In the above corrugated row, the axial width adjustment rate of the same row
Select the above ratio H / L and the above ratio D / L so that i is relatively small.
The reinforced corrugated body is stable and
Excellent processability that enables high-speed roll forming
Is to bring.   As a result, the reinforced corrugated body of the present invention is
Compared with the above, the sheet material and plate thickness are the same.
The strength is greatly improved, and at the same time, the reinforcement according to the present invention.
Corrugated body has tearing damage and surplus at high processing speed.
Roll forming is possible without generating crochet
As a result, the structural strength / product cost, that is, product value is revealed.
It can be greatly improved compared to that of line cardboard.
it can.   Fig. 11 shows a conventional corrugated body and its composite corrugated body.
The reinforced corrugated body of the invention compared with the single performance of the body
Schematic of the difference in the composite performance of the reinforced double corrugated body
Shown as a figure.   In the II performance area, the first and
The second and third conventional examples have high structural strength only in the I performance region.
The 4th, 5th, 6th, 7th and 9th conventional examples with good performance are applicable.
In contrast, the reinforced corrugated body of the present invention and its reinforcement
The composite corrugated body is excellent in both workability and structural strength.
It belongs to the third performance area showing performance.   Reinforced Korge that can solve many of the above problems
To provide its reinforced composite corrugated body
You. << Means for solving problems >>   According to the present invention to achieve the above object, a row axial direction
Reinforced corrugated body consisting of corrugated rows meandering in the direction
Reinforced composite corrugated body that is integrated with a plate-like sheet
At L, the period of the corrugated cross-section waveform is
The substantial amplitude is H, and the corrugated row has a planar waveform
Form the corrugated row with a cycle of N and a substantial amplitude of D
If the sheet's width-direction limit stretching strain ratio is β,
Real amplitude ratio H / L in corrugated body is 0.4 ≦ H / L ≦ 1.4
And the substantial meandering polymerization rate D / L is 0.5 ≦ D / L.
And the width adjustment ratio i of the sheet in the width direction is set to i ≦ 8% + β
And the width of the width is kept constant, the substantial vibration is generated.
The width ratio H / L and the substantial meandering ratio D / N are substantially inversely proportional to each other.
It is formed so that it can be added.   And, preferably, the snake in the corrugated row
The row polymerization rate D / L is 1.0 ≦ D / L.   More preferably, the top of the cross-sectional shape of the corrugated row is in the x direction.
・ Because the bottom has a curved shape or a chamfered shape with a narrow width
Is formed so that its bending width w is as large as possible.
And   More preferably, the corrugated row has a flat meandering shape.
It has a smooth wave shape, and especially bends around the central axes of mountains and valleys.
The part is shaped so that it has a curved or slightly wide chamfer.
Is to be done.   In addition, the above meander shape of the top and bottom cross-sectional shape of the corrugated row
And are formed by a single arc, a combination of multiple arcs
Formed by joints, formed by elliptic arcs
Of the combination of arc and ellipse arc,
The meandering shape of the smooth wave is the corrugated row.
Bending with an internal angle of less than 120 ° around the central axis of the peak and valley in the plane
Is a generic term for all periodic shapes except the zigzag shape
Yes, for example, all meandering line segments are formed by continuous curves.
Which is made up of multiple discontinuous curves that are interconnected
What is formed, the straight line and the curved line that are connected to each other
The curved part of each of the above meandering shapes is divided into a plurality of straight lines.
Formed by replacing line segments, interior angle 120
Relatively small wave with arbitrary bending angle as a ゜ -shaped bending part
Each of the above meandering shape by a straight line or a plurality of same curved lines
, The zigzag-shaped bend is chamfered.
There are things made. "Example"   Prior to concrete examples, the reinforced corrugated body of the present invention
Outline of A, B2 grape shape conditions to be satisfied
You.   Figure 12 shows the shape conditions A and B groups related to the two major performances.
And its preferred shape area is shown in a model style, but the vertical axis
Is the shape condition A that affects the structural strength and its group.
Desired range for high structural strength
Shape conditions A-1, A-2, A-3 are represented by diagonal lines, and the horizontal axis
Is the shape condition B group and its glue that affect the workability.
The shape of the desired range to provide excellent processability
The condition B-1, B-2, B-3 is represented by diagonal lines, and
The shape conditions that the reinforced corrugated body of
Shape conditions in a wide range A-1, A-2, A-3 and B-1, B-2, B-3
And the shape condition C that integrates these conditions overlap.
It is shown as a meshed area and is included in the complex condition area.
The most preferable shape condition is the optimum shape condition.
And the reinforced corrugation formed by its shape condition
The body is one that can be put to practical use on an industrial scale.
You. Below are the respective shape conditions included in the compound condition area.
To be more specific, (1) Shape condition A that promises high structural strength   Shape condition A-1, circumference of corrugated row
Ratio of real swing ratio H to period L, that is, real swing ratio H /
It is formed so that L is 0.4 ≦ H / L ≦ 1.4.   Shape condition A-2, actual in corrugated row plane waveform
Ratio of quality range D and period L, that is, substantial meandering polymerization rate
D / L is formed as 0.5 ≦ D / L, more preferably 1.0 ≦ D / L
Is done.   Form condition A-3, the section of the corrugated row / bottom section is that
It is formed so that the bending width W is as large as possible. (2) Shape condition B that promises excellent workability   Shape condition B-1, the width of the corrugated row in the y direction
The ratio i should be i ≦ 8% + β.   Shape condition B-2, the corrugated row has curved top and bottom sections
Shape or narrow chamfered shape
When.   Shape condition B-3, the serpentine shape of the corrugated row is smooth
Be formed in a plane wave shape. (3) Shape condition C that combines conditions A and B   Two variables that satisfy the shape curve equation H / L ＝ fi （L / D）
R / G and snake of cross-sectional waveform in rugate row
The line-shaped effective swing ratio D / N is the parameter direction constant y
At the value of the crossing ratio i, for virtually one D / N value
There is a relative relationship that it has only one H / L value.   For each of the above shape conditions A, B, C, the basis and the standing sequence
The action and effect will be explained step by step below. 1) About shape condition A   Reinforced composite corrugated body 2 according to the present invention and two-leaf flat plate
Reinforced composite corrugate of the present invention, which is joined and integrated with the seat 3.
The body 1 is shown in FIG. 13 with a part broken away.
Of structural strength characteristics peculiar to reinforced composite corrugated body 1
One of the typical indicators to do is the maximum shear in the x direction in the xy plane.
Stress and its external shear force are shown schematically in Fig. 14a.
You. For the flat sheet 3 of the slant wall portion 4 of the corrugated row 3
Slope gradient θ, that is, the substance of the cross-sectional waveform of the same row
Using the swing ratio H / L as an explanatory variable, the explained variable
Experimentally confirm the fluctuation value indicated by the shear stress Gx
The shape-shear strength curve group is graphed in FIG. So
The curve formula of is Gx ＝ g_j(L / H), Gx is
The maximum shear stress index in the x direction, g is the symbol of the index, and j
Substantial meandering rate D / in the planar corrugation of Wako corrugated row 3
N is a parameter variable constant and varies depending on j.
Draw a curved figure.   For each curve, the actual meandering rate j increases from 0 to 0.5.
As you move it, it gradually shifts upward in a parallel movement, and
The distance between them is gradually reduced, but the most characteristic one
Each curve inclines from θ = 10 ° (L / H≈0.1) to θ = 40 °
(L / H≈0.4) rises relatively steeply and Gx = 1.0
After that, there is a slight gradient near θ = 45 ° (L / H = 0.5).
It becomes mellow and finally reaches near θ 55 ° (L / H = 0.7)
It reaches the top, but after that, it is comparable until θ ≈ 70 ° (L / H = 0.4)
It descends with a relatively steep slope, and after θ ≈ 70 °, the slope gradually decreases.
It means that θ ≈ 90 °, that is, each song
The characteristic of the line is that it has a common peak effect near θ ≈ 55 ° (L / H = 0.7).
This is the point at which the fruit appears.   Note that Gx = 1.0 is j = 0, that is, the current stage baud.
The maximum peak in the x direction seen in Le-like composite corrugated body
The large shear stress is set to an index of 1.0.   As is clear from the graph in Fig. 15, each shape-strength curve is
The slope angle θ of the sloping wall exceeds Gx = 1.0 line from around 40 °
Around 55 ° of the inclination angle θ, it becomes a mountain and then suddenly
The curve that descended to a transition to a gentle slope at the same θ around 70 °
The curve characteristics common to each curve are observed.
Judging from the fact of
The proper inclination angle θ to obtain strength is 40 around 55 °
゜ ≤ θ ≤ 70 ゜, which is close to the real swing ratio H / L.
Similarly, 0.4 ≤ H / L ≤ 1.4 is limited as an appropriate actual swing ratio.
The shaded area in the figure shows the range.
did.   The actual swing ratio H / L is determined as above.
It is. In the corrugated line 3 of the corrugated row in Fig. 16
Obtained by linearly extending the slope of each swash wall in both the upper and lower directions.
Determine the substantial amplitude H of the substantial cross-sectional waveform 10
The ratio of the above-mentioned substantial swing H to the actual swing ratio H / L was defined.   The actual meandering ratio D / N is determined as follows.
You. Plane corrugation or meander of corrugated row 3 in FIG.
In Form 11, the slope of meandering Form 11 around each neutral axis is
Reference meandering shape 13 obtained by linearly extending in the direction
By the reference width D'of the meandering type 13 and the meandering type D
The actual amplitude D of the meandering type 12 is D = D0 + (D′−D0) × α,
Then, α is defined as 0.3 and the above for the meandering period N
The ratio of the actual swing D was defined as the actual meandering ratio D / H. 2) About shape condition A-2   Intrinsic structural strength characteristics of the reinforced composite corrugated body of the present invention
The second index that speaks eloquently is the plane perpendicular to the corrugated row.
It is the external bending rigidity, and the maximum in the x-direction in the zy plane is shown in Fig. 14b.
The out-of-plane force to clarify the bending stress is shown in the schematic diagram.
ing.   For the period L in the cross-sectional waveform of the corrugated row 3
Ratio of amplitude D in plane waveform, that is, substantial meandering polymerization rate
D / L is the explanatory variable, and depending on the change, it is the explained variable.
Experimentally confirm the fluctuation value indicated by the maximum bending stress (index)
Then, graph it as shape-bending strength S x line group in Fig. 18
Was.   The formula of the curve group is Mx = h_jNotated as (D / L), M
x is the maximum bending stress index in the x direction, h is the index symbol, and j
That is, the actual meandering ratio D / N is used as a parameter constant of j
Draw a group of curved figures that have different shapes due to changes.   Each curve increases the actual meandering rate j value from 0 to 0.15
Then, depending on it, shifting upward while shifting the slope slightly,
The distance between the curves is gradually reduced, but the most characteristic
It is desirable that each curve be changed from 0 to 0.5 of the substantial meandering polymerization rate D / L.
The slope is gentle over time, but once D / L exceeds 0.5, it becomes steep.
Ascends on a slope, and further as the D / L goes above 1.0,
It will be a steep slope and continue rising.
Then each specific D / that causes the above two bending points on each curve
There is an L value, and that value is common to each curve with different j
Is Rukoto.   Note that Mx = 1.0 is j = 0, that is, the current stage baud
The bending stress seen in the composite corrugated body like Le is 1.0
Is set as.   As described above, when the meandering polymerization rate D / L is 0.5 and 1.0.
Shape-bending strength curve Mx ＝ h_j(D / L) also has two bending points
It was revealed that the change in D / L value
Observing the mutual positional relationship of the serpentine planes
First, when D / L <0.5, the bottom meandering shape of the corrugated row is
The top of the corrugated row where each bend on the mountain center axis is adjacent
Y direction obtained by connecting each bent part on the central axis of the meandering valley
It is located in front of the line, and when D / L = 0.5, the corrugated row
The bend crosses the y-direction line of the adjacent corrugated row
Position, and the top of the corrugated row when D / L = 1.0
Corrugated strip where each bent part on the center axis of the meandering shape is adjacent
Move to the y-direction line of the row, and if D / L> 1.0, corrugate
G. The y-direction line of the cogate row adjacent to the bent portion of the row.
It will be located beyond.   In addition, the corrugated row according to the above D / L value
Reinforcement of change in positional relationship of plane meander type of composite corrugated body
Observing the cross-sectional shape on the y-direction line, the reinforced composite cor
Morphological characteristics of the truss-like structure of the gate body and its x
The change in the out-of-plane bending strength Mx in the direction becomes more apparent. First
In the cross-sectional shape of the reinforced composite corrugated body, D / L <0.5
The reinforced corrugated body contacts only the flat sheet on one side.
The truss-like structure is rather unstable as it is fitted
Therefore, the bending strength Mx is extremely small and D / L = 0.5
When reinforced corrugated body is joined with flat sheet on both upper and lower sides.
Therefore, the truss-like structure is
The morphological characteristics of can be rapidly changed to stable,
As D / L> 0.5 and the value is gradually increased,
Since the inclination angle of the web-like structure (slanting material) is steep, it is strong.
The degree of increase of the degree Mx is larger than that when D / L <0.5, and
In addition, when D / L = 1.0, the reinforced corrugated body is a flat plate on both the upper and lower sides.
In order to double the junction density with the sheet to that of D / L = 0.5,
The truss-like structure of the
The characteristics are suddenly changed to a more stable one, and D / L> 1.0
And its truss-like structure as its value increases sequentially
The web's inclination angle becomes steep, and only the single-sided flat sheet is contacted.
Triangular vertical consisting of mating web and flat sheet
Since the height is large, the strength Mx is much higher than when D / L <1.0.
Increase with a large increase rate.   As described above, the shape-bending strength curve formula Mx = h_jTo (D / L)
Shows a sharp increase in bending strength Mx at D / L = 0.5 and D / L = 1.0
It was revealed that there are two singular points that cause the present invention.
Bending strength suitable for practical application of reinforced composite corrugated body
In order to secure the degree Mx, the substantial meandering polymerization rate D / L is D / L ≧ 0.5.
The range of the shaded and mesh lines in Fig. 18 is
It is shown as a part and more preferably D / L is D / L ≧ 1.0
And the range is shown in the mesh lines in the figure.
Was. 3) Shape condition A-3   Various structural strengths of the reinforced composite corrugated body according to the present invention
Degree of strength depends on the joint integration of the reinforced corrugated body and the flat sheet.
It can be obtained for the first time by
The breaking strength and bending strength in the same x direction are the same as those of the reinforced corrugated body.
Bonding method and bonding depend on the bonding area of plate sheet
If the agents are equivalent, they are proportional to the joint area. Fig. 16
Cross section corrugated odor of reinforced corrugated body
The bending width w near the bottom and the bottom is shown at the top.
The cross-sectional shape of the bottom has various modifications as shown in Fig. 21.
However, as a general rule, the above bonding area depends on the bending width w.
Higher because of this reinforced composite corrugate
If structural strength is to be calculated, the bending width of the corrugated row above
Form a reinforced corrugated body so that w is as large as possible.
It is to stop. 4) Regarding shape condition B-1   To process and form the reinforced corrugated body according to the present invention,
There are seed production methods, but among them, a large amount is produced on an industrial scale.
Only one can produce, as shown in Figure 19.
Such a roll forming method. That roll fomy
In the rolling method, the tooth profile row 21 in the roll axis direction is multi-staged in the circumferential direction
To the pair of forming rollers 20
The corrugated rows 22 in the feed direction in the width direction beforehand.
Corrugated subject that is provided in multiple stages and has a certain width
Work sheet 01 is supplied and roll forming is performed.
Thereby, the reinforced corrugated body 2 according to the present invention is obtained.
It is characterized by: The above forming roller
Directly in the circumferential direction of the peripheral surface so as to straddle the supply path at 20 upstream positions
With a pair of corrugated tooth rows arranged in multiple stages in the roll axis direction
A single or a plurality of rake rollers are provided,
A flat sheet to be processed is supplied to the above
The sheet 01 is processed.   The work sheet is roll-formed by the roll 20.
When the sheets are stacked, they are stacked in the feeding direction.
It is required that the width be narrowed in the width direction.
Rate i₀Is the y direction of the processed sheet 01 during roll forming
Directional stretching strain rate β and H / L of corrugated row formed by processing
And D / N are uniquely determined values.   By the way, the corrugated processed sheet 01 has the above-mentioned predetermined items in the width direction.
Front width adjustment ratio i₀Is supplied with a corrugated cross-section
Ru width predetermined width adjustment ratio i₀Large beyond a certain limit
When it becomes tighter, the x-direction
Forced corrugated body with excessive wrinkles and fractures
This is lost, but this is the advance width adjustment ratio i₀Is too large
Therefore, the above-mentioned sheet 01 to be processed exceeds the H / L of the corrugated section.
Immediately after being supplied between the pair of rolls 10 to be large,
Are locally irregular in the cross-sectional waveform when pressurized
Causes buckling deformation, collapses and associated strains
The width of the width is uniform at the same time that
This is because the distribution of the ratio i is significantly hindered.
Work sheet 01 is accompanied by such irregular buckling deformation
Forming row with local strain deformation
When the final corrugation is done by LA 20, the station
Partial strain deformation is increased to obtain a reinforced corrugated body
Will be.   More specifically, the amount of collapse and the advance width adjustment ratio i₀With
Based on the graph in Fig. 20 showing the correlation,
In the first place, roll forming
Predetermined width required for the reinforced corrugated body 2 obtained by
The rate i is i> i₀Given by + β, i₀Is the advance width
Rate, that is, the corrugated workpiece in which the flat sheet is processed in advance
Width of the processed sheet 01 in the width direction, β is the sheet to be processed
This is the limit stretching strain rate in the width direction of g.01, and when it exceeds the limit, the material
The strength is inferior (the strength is reduced by 30% for the time being)
Paper sheets and steels with low stretch limits that are not practically used
2.0% for plate sheets, semi-rigid plastic sheets, etc.
Is the upper limit of the critical stretching strain rate β. The aluminum sheet
For hot and hot plastic sheets, the stretching limit is rather high
Therefore, 5.0% is defined as the critical stretching strain rate β.   Frequency index of collapse that occurs during roll forming
Is the advance width adjustment ratio i₀I₀Frequent collapse when ＝ 5.0%
The degree is set to 1.0, and the value is the advance width adjustment ratio i.₀
Increases with changes in₀= 8.0%
It could be confirmed experimentally that the increase in the value of the value of the value becomes rapid.
As a result, the work sheet 01 is overturned during roll forming.
Advance width adjustment in order to suppress the occurrence of sagging etc. as low as possible
Rate i₀0 <i₀It should be kept within the range of ≦ 8.0%.
The range of sex is shown in the shaded area in the figure.   Therefore, the final reinforced corrugated body is stable and high.
It is processed and formed by the rapid roll forming method.
To be specific, the width-shifting ratio i is determined by stretching the sheet to be processed.
When the deformation rate β is 0 ≦ β ≦ 2.0%, the value is 0 <i
It is to be in the range of ≦ 10.0%. 5) Regarding shape condition B-2   21 a to d show a reinforced corrugated body 1 according to the present invention.
Various sectional waveform diagrams in the corrugated row 3 are shown.
FIG. 6e shows a sectional corrugated perspective view of the ninth conventional example.
First, for reference, let's talk about the ninth conventional example.
I do. The corrugated row / bottom 5 is shown in the sectional corrugated perspective view.
Is a flat trapezoidal surface,
Corrugated row shaft when processed and formed in
Direction, that is, in the y-direction, with a certain width
The row of lines can be arranged in a predetermined serpentine shape,
From a microscopic perspective, the corrugated row and the trapezoidal flat bottom
The bearing surface is mainly located in the bends near the central axes 5 and 6 of the mountains and valleys.
However, the trapezoidal surface is flat.
Due to the presence of the trapezoidal surface around the bend, the outer portion of the row plane
In No. 9, it was stretched and deformed due to tension, and
Consistency in practical use due to the concentrated generation of shape or fracture damage
And the deformation and damage are not significant.
However, due to the residual strain stress caused by the above tension,
After trapping, the trapezoidal surface has periodicity in the corrugated row axial direction.
Integral bonding with flat sheet due to the inclined shape
However, the present invention solves the above problems.
In order to solve the problem, the item / bottom 5 as shown in FIGS.
Various cross-sectional shapes were formed. Cross section of each top / bottom 5
The shape is flat with a flat surface that eliminates flat surfaces at all
It is characterized by leaving a flat surface, the former combination is in the y direction
Along with the specified width of the
Distortion, etc. remains by making it easier to bend
It suppresses the occurrence of residual strain stress as much as possible, resulting in rupture damage, etc.
It has become possible to completely prevent the occurrence.   In the latter case, the flat surface remaining in the top / bottom cross section is very small.
Because it is a narrow flat strip surface, y
In-plane bending deformation of the bent part due to a certain width adjustment in the direction
At 8 mm, the amount of in-plane stretching strain of the local part 8 became too small and no fracture occurred.
If there is no damage, the residual strain stress can be almost ignored.
It becomes   The shape corresponding to the former case is a-1, a-2, a- in Fig. 21.
4, b-1, b-3, c, d are the same, and in the latter case, they are shown in Fig. 21a.
-3 and b-2 are applicable, and each shape is explained in more detail.
I will tell.   Figure 21a shows a corrugated row with a relatively wide bend width w.
It is a cross-sectional shape of the top and bottom, and various types are shown in Figures a-1 to a-4.
Although the deformation is illustrated by locally enlarging it, FIG.
Figure 2 is an elliptic arc shape with a curvature r.
Figure a-3 shows two arcs with a curvature r and a narrow width.
w'is a combination of straight lines, and Fig.
Insert a circular arc with curvature r'between two circular arcs with ratio r.
21b in FIG. 21b.
Chamfered top and bottom cross-sections with extremely narrow bending width w
In the same figure, b-1 to b-3 show various modifications for local expansion.
As shown more, Fig. B-1 shows an extremely short straight line and a small curvature r of 2
Fig. B-2 is an extremely short straight line.
Figure b-3 is an arc with an extremely small curvature r.
And further FIG. 21c shows a double-sided sloping wall
A double-sided shoulder drop in which the surface 4 is a curved shape that is continuous with the top and bottom 5,5 '.
shape. In FIG. 7c, only the one sloping wall surface 4 is continuous with the top and bottom.
It becomes curved and alternates in the axial direction of the corrugated row.
It is a one-sided shoulder drop shape with periodicity that changes the direction.   Desirably, the corrugated row has a cross-sectional waveform in the x direction.
Are formed so that they have the same shape in any cross section in the x direction.
In the unlikely event that there are multiple cross-sections in the x-direction,
If the cross-sectional shape of each is different from each other, the step rate in the x direction or y
Variation occurs in both the width adjustment ratios in the x direction or the y direction.
Direction local tensile force and strain deformation occur
Stable and fast strengthening by lowering or breaking
Because roll forming of corrugated body becomes impossible
It is. 6) Regarding shape condition B-3   As mentioned in the explanation of the 4th conventional example and the 6th conventional example,
In the plane meander shape of the row of rows, the bent portion has an acute angle, etc.
If it protrudes on the
The teeth are sharp due to the bent part of the tooth profile row protruding in a sharp angle.
At the same time, it is subjected to pressure deformation locally and at the same time, in the x direction.
Strain deformation, to prevent breakage,
Not only can it be generated, but also during roll forming
Fine adjustment of the amount of widthwise adjustment in y direction
To prevent slipping of the processed sheet on the y-direction tooth profile row for
The tensile strain in the y direction and the resulting fracture.
Although there is a problem that it can be worn, the reinforced cogate of the present invention
The corrugated rows on the body should be licked to prevent such things.
A serpentine shape with a smooth plane wave is formed.
22 Figures a to h show various meanders at the top and bottom of the corrugated row.
An example of the shape is shown in the schematic diagram. Figure 22a shows corrugated strip
The planar waveform, which is a continuous curve over the entire length of the row, is shown in the figure.
In b, a curved line is formed in the bent portion and a flat line is formed by connecting them with a straight line.
The shape of the surface wave is straight in the bending part in FIG.
The plane waveforms connected by lines are shown in Fig. 4d as straight line segments over the entire length.
A trapezoidal shape with knots and chamfered planar corrugations
In the figure e, a trapezoidal shape is formed by connecting straight lines to the entire length.
A relatively flat plane with an internal angle θ of the hypotenuse of 120 ° or more
In Figure f, the waveform is relatively flat with an internal angle θ of 120 ° or more.
The flat, zigzag-shaped corrugation is not bent in the figures g and h.
The curved part is the curved line segment, and they are wavy curves with a relatively small period.
Plane corrugations connected by lines are shown.   As described above, the meandering shape of the corrugated row according to the present invention is formed.
By being formed as a smooth planar corrugation,
The meandering bent portion and its vicinity are curved or flat.
Depending on what is made flat or the inside angle of the bend is sufficiently large.
Removed various sharp-edged protrusions, but
The toothing of the Ming roller has a serpentine shape with a smooth plane wave.
This means that the roll to be machined during roll forming
Is pressed by the tooth mold over a relatively wide range.
Therefore, local strain deformation is avoided and at the same time the work piece
Prevents the slide from sliding on the tooth mold during stepping in the x direction.
Since it cannot be peeled off, it is deformed by tensile strain in the x direction and is broken by it.
Prevents breakage, and fine adjustment of width adjustment in y direction
The sliding of the work sheet on the tooth mold due to
Since it is not present, tensile strain deformation in the y direction and rupture caused by it
The raw material can be sufficiently suppressed, and as a result, the enhancement of the present invention.
Stable and high speed roll forming of corrugated body
Made in <About general shape condition C>   Various meandering corrugated bodies such as the conventional zigzag shape
From the aspect of structural strength in roll forming
The roll is designed and processed based on the H / L and D / N set only
Therefore, the suitability of the reinforced corrugated body according to the present invention is
Corrugated body that satisfies all shape conditions A and B
Not to mention that it has not been invented, yet
By the way, such a corrugated body was not put into practical use.   In order to solve such a problem, here, the strengthened core according to the present invention is used.
Clarify universal shape conditions that rugate bodies should have
However, it is a group of shape curves shown in the graph of Fig. 23.
The shape curve of Risoh is H / L ＝ f_iNotated as (D / N)
The swing ratio H / L is the explained variable, the actual meandering ratio D / N is the explanatory variable, and the width
Alignment ratio i is a parameter variable constant, and width alignment ratio i is constant
, The actual swing ratio H / L and the actual meandering ratio D / N are
The relationship of inverse proportion is satisfied, and the curved expression
The line stacking ratio D / L and the bending width w are not related.   The above shape curve formula is for the absolute values of individual shape values H, L, D, N.
Applies independently. That is, the book consists of shape ratio
Principles that explain only the shape characteristics of reinforced corrugated bodies
Function, structural strength and processing of the reinforced corrugated body
It has nothing to do with the quality of sex.   More specifically, for a fixed value of the parameter variable constant i
The combination of variable values H / L and D / N that satisfy the above shape curve equation are
There exists only one, for example, the value of variable constant i and the value of variable H / L
The combination uniquely determines the value of the variable D / N or the variable constant i
Of the variable and the value of the variable D / N determines the variable H / L or
The combination of H / L and D / N values determines the value of the constant i.   The shape curve group in the figure is obtained by translation.
It is drawn as a group of similar hyperbola, and the width shifting ratio i is 5% ≦ i ≦
Only the shape curve with 20% is illustrated, and i <5% around it
And i> 20% shape curves are omitted.   Furthermore, the above shape curve group should have a real amplitude ratio H / L = 0.
Real corrugated body with various actual meandering ratio D / N
The shape of each part processed and formed by changing the margin i
That is, the changes in the actual swing ratio H / L and the actual meandering ratio D / N are measured.
It was possible to draw by this. For structural strength and workability
Of the two shape conditions A and B concerned, it is possible to make it practical.
The most important shape condition A-1 and shape condition B-1 are
The optimum range to be satisfied at the same time is the appropriate real swing ratio H / L is H / L = 0.7
The optimum range is set to 0.4 ≤ H / L ≤ 1.4.
And the shape curve with an appropriate width adjustment ratio i is 0 <H / L
Limited to ≤10% (D / N) and suitable
The range of 0 <D / N ≦ 0.35 where the actual meandering ratio D / N is optimum and the result is
The shaded area in Fig. 22 is
Showing the optimum range of the reinforced corrugation according to the present invention
The main shape conditions of the body and its reinforced composite corrugated body are above
It is included in the shaded area and can be put to practical use.
Corrugated body with formation conditions on the side and its composite cor
The gate body can have structural strength and processing performance that can withstand practical use
Although it is determined that there is no corrugated body
Since all the examples are out of the shaded area
It is endorsed that its practical application is difficult or impossible.
Have been.   This group shows the optimum range of the shape of the above shape curve group.
Corrugation of reinforced corrugated body according to the present invention using rough
Tooth row shape design and forming roller tooth profile row shape
-Shaped design and pre-corrugation roller waveform adjustment are performed efficiently
The appropriate H / L, i can be set in advance.
After setting, combine high structural strength and excellent workability
Determine and design a D / N that enables a reinforced corrugated body with
Setting method and suitable H / L and D / N in advance.
Pre-corrugation roller that calculates and controls the i value that enables this
It is useful for application to the automatic control system of.   The theoretical values such as H / L, D / N, i that satisfy the above shape curves and
H / L, D / N, i of the reinforced corrugated body actually processed and formed
Often coincides with any measured value, but sometimes it is the same.
But may be an approximation. It is the work piece
Local due to partial distortion caused by uneven material
Corrugated row shape change or roll forming
Of the buckling deformation of the processed sheet with orthogonal wave
Wrinkles that occur due to the
To the reinforced corrugated body immediately after formation
Of local shape of corrugated row due to partial residual stress
Although it may be caused by strange things,
If the factor can be removed, the theoretical value and the measured value are almost
It matches.   Note that the above shape curve is irrelevant to the type of material of the processed sheet.
It is a matter of affairs.   Under shape condition B-3, the reinforced corrugation according to the present invention
A flat surface with a serpentine corrugated row in the body
The corrugated shape is effective for improving the machining performance.
It is said that it has a stronger corrugated body odor
That it is also effective in increasing its structural strength.
You.   2nd, 4th, 5th, 6th, 7th, 8th
The corrugated body is shaped like a meander in the corrugated row.
It has a zigzag shape and its ridges are straight or mostly
It is supposed to be straight, but because of that
In a composite corrugated body made by integrating flat sheets
The opposite sloping walls of the corrugated row will be flat
Compressive force of z-direction and z-y plane x direction of composite corrugated body
It is difficult to maintain the shape rigidity of the sloping wall surface against the shearing force.
It has the drawback of not having enough structural strength against various external forces.
However, the reinforced corrugated body according to the present invention is shown in FIG. 22 a, b, c, d, g,
As shown in h etc., the corrugated row has a meandering shape.
And that the ridge is curved or curved
The opposite slanted wall surfaces of the corrugated row are curved
Formed as a curved ruled surface that is linear in the generatrix direction
In order to integrate the reinforced corrugated body and flat sheet
When the above external force is applied to the reinforced composite corrugated body
If the slanted wall surface has sufficient shape rigidity when
As a result, a reinforced composite corrugated body with high structural strength was obtained.
Can be Therefore, the above-mentioned curved or curved ridge
By making the ratio of the line part to the meandering shape as large as possible
Therefore, the structural strength can be further improved.   The reinforced composite corrugated body of the present invention is
Joining two flat sheets on both sides is the 13th and 1st
Although it is shown in Fig. 4, etc.
Reinforcement of the single-sided type that one flat sheet is in contact with one side of the body
Composite corrugated body is more expensive than conventional single-sided corrugated board
It has structural strength and at the same time can be easily processed and formed.
Effective for reinforced composite corrugated body, and single-sided reinforced composite
Multiple corrugated bodies are not joined together alternately or on one side
-Type and double-sided reinforced composite corrugated body
The present invention provides a multi-layered reinforced composite corrugated body
It is effective as a reinforced composite corrugated body.   In addition to the reinforced composite corrugated body according to the present invention
The reinforced corrugated body is used as it is, and it is a conventional straight type.
Corrugated cardboard center sheet or corrugated body
Combined with high structural strength and excellent workability compared to saw boards
Therefore, it can be used for various cushioning materials or applications equivalent to the name board.
It is effective.   Still further, the reinforced composite corrugated body of the present invention is a reinforced corrugated body.
The curved body is not only integrally joined to the flat sheet but also curved
-Shaped sheet and reinforced corrugated surface with the same curvature
It may be formed by integrally joining the sheet bodies.   Note that FIG. 19 shows the roll of the reinforced corrugated body according to the present invention.
The process forming method by forming is schematically shown.
Is preferably a pair of forming rollers 20 in the figure.
When the upper and lower roller teeth 21 are engaged,
Make sure that they do not come into pressure contact with each other via the work sheet 01.
That is, the tooth profile 21 of the upper and lower rollers is
Provide a roll gap larger than the thickness of the work sheet 01.
Or not to mesh with each other.
On the straight line connecting the center axes of the upper and lower rollers at the shortest distance
Or the tooth profile of the upper and lower rollers only at a short distance around it
The rows 21 contact each other so that they do not
To touch.   A roll roll with a roll gap as described above.
By performing the forming, roll sheets such as paper sheets
For fine adjustment of the width adjustment in the y direction during
Work sheet 01 required for ironing
Since it does not hinder the sliding on the tooth profile series of
The reinforced corrugated body is added to prevent the occurrence of shape and breakage.
The work can be formed stably and at high speed.   It should be noted that the reinforced corrugated body of the present invention and the plate shape to be integrated
Sheets are not limited to paper, but plastic
Sheets, metal sheets, etc. that have plasticity and thermoplasticity
It can be formed using the above materials. "The invention's effect"   As described above, according to the present invention, it meanders in the row axis direction.
Reinforced corrugated body consisting of corrugated rows is a plate-like sheet
In a reinforced composite corrugated body integrated with
Let L be the period of the corrugated cross-sectional waveform and H be the actual amplitude.
And the period of the plane waveform of the corrugated row is N.
A sheet forming a corrugated row with a substantial swing as D
When the critical stretching strain ratio in the width direction is β, the reinforced corrugated body is
The real amplitude ratio H / L at 0.4 ≤ H / L ≤ 1.4 and
The meandering polymerization rate D / L is 0.5 ≦ D / L and the sheet
The width adjustment ratio i in the width direction is formed such that i ≦ 8% + β,
When the width adjustment ratio i is constant, the actual amplitude ratio H / L and
Shaped so that the actual meandering ratio D / N substantially satisfies the inverse relationship.
A known product that can be mass-produced on an industrial scale by being made
Subordinates that have a corrugated cardboard core, etc.
Various new corrugates that can be mass-produced
Corrugated cardboard or a new sheet obtained by integrating it with a flat sheet
Fingers with their main structural strength compared to compound corrugated body
Z-x in-plane x-direction shear rigidity and y-x out-of-plane x direction that are targets
The flexural rigidity is extremely high, and at the same time, its reinforced coll
The gate body undergoes various strain changes during its roll forming.
Stable without any damage such as shape rupture
Because it can be processed and formed at high speed,
Packaging materials and building materials made of various conventional composite corrugated bodies
Provided as a stronger and cheaper material such as flannel base material
Was.   Introduce three characteristic cases from many examples
Then, in the first case, using a new sheet,
The shape of the rugate row is the actual amplitude ratio H / L = 0.7, the actual meandering ratio D
/N=0.18, substantial meandering polymerization rate D / L = 1.0, width adjustment rate i = 5%
The planar waveform into a smooth wave shape consisting of continuous curves.
Then, make the cross-section die at the top and bottom of the row into a curved shape.
The strengthened corrugated body is about 150 m / min
Predetermined heating type forming roll without processing trouble
It was obtained by roll forming by a la.   In addition, during roll forming, advance width adjustment
Since the rate of stretching was 5% and the stretching strain rate was β ≈ 0, the reinforced cor
That the gate body is topologically virtually expandable
It was obtained as an ideal lithographic structure that was characterized.   In addition, the reinforced corrugated body is a biplane board on both sides
Reinforced composite corrugate obtained by integrally laminating with a sheet
Body is a sheet material₀, Same cycle L, same bending width w
The amount of use of the sheet compared with the known corrugated cardboard
Was increased by about 2%, but at the maximum shear strength in the x direction, 50
%, The bending strength in the x direction is about 60% higher.
The result was confirmed.   Next, using a paper sheet as a second case, corrugate
Substantial swing rate H / L = 0.7, Substantial meandering polymerization rate D / L = 1.0,
Actual meandering rate D / N = 0.24, width adjustment rate i = 8% and row
The meandering type has a continuous curve with a smooth plane wave shape and a row.
Reinforced core formed with curved top and bottom sections
The rugate body has no processing trouble at a speed of about 100 m / min.
No heat is generated by the prescribed heating type forming roller.
It was obtained after being reformed. In addition, the roll
6.5% advance width adjustment during sheeting, sheet stretching
Since it was processed with a distortion factor β ≈ 1.5%, topologically
It is slightly difficult to develop, and the strength of the material in the width direction of the work sheet
It can be said that the degree has deteriorated somewhat. Furthermore, the reinforced corrugated body
It is obtained by integrally laminating both sides with a two-leaf board paper sheet
Reinforced composite corrugated body is equivalent to known corrugated board
Compared under the conditions of
Although it increased by about 3%, the maximum shear strength in the x direction was about 55%,
The result is that the bending strength in the x direction was exceeded by about 75%.
confirmed.   The third case is the reinforced corrugation of the first case.
The same as that of
A piece of reinforced corrugated body made of paper sheets with other shapes
One-sided reinforcement obtained by integrally laminating a flat paper sheet on one side
The corrugated body is a sheet equivalent to the known single-sided corrugated board.
Material, row width H₀Under the same period L, same width w, etc.
In comparison, the amount of use of the sheet increased by about 3%,
The remarkable result that the bending strength in the x direction exceeds 220%
confirmed.   As seen in the first and second cases above, known steps
10% or less increase in product cost compared to balls (however,
Material increase 4% or less, due to decrease in roll forming speed
Manufacturing cost increase was 6% or less)
Product value = 50% difference in seed structure strength
Strength / cost ≧ 150/110 = 1.36, other performances are equivalent
It is said that there is a difference in product value of about 40% or more
In the third case, the increase in product cost is 7
% (However, the material increase was 3% or less, the manufacturing cost increase was 4%)
It is suppressed and the difference in bending strength is 220%
Therefore product value = strength / cost ≥ 320/107 = 2.99, etc.
The product value is about 200% or more because the performance of
It was made clear that the disparity between the two was clear.   It should be noted that, in processing and forming the reinforced corrugated body according to the present invention,
And a pair of roll gap forming rollers
Used to make a pair of rollers facing each other substantially in contact with each other
First, the paper sheet to be processed is the x
For horizontal adjustment and fine adjustment of width adjustment in y direction and heating type
Tensile stress in both x and y directions during roller ironing
Of sliding on the tooth profile of the roller with the adjustment of
Since it is hardly disturbed, the above-mentioned processing of the workable sheet
Occurrence of trouble is prevented and the yield of the product is
It is possible to improve the manufacturing speed as well as improve
Then, a pair of well-known non-roll gap type photons
Compared with the forming roller, the roller has a collision between the facing tooth types.
Since there is no protrusion or contact, the tooth mold is extremely worn and missing.
And the roller itself has a long life span.
In addition, the occurrence of collision vibration noise should be prevented in advance.
It was a great place to help improve the working environment. Also
Furthermore, does the roller have a predetermined roll gap?
Unlike known non-roll gap type rollers,
Since it is not required to have high dimensional accuracy of the tooth profile of La
The manufacturing process is simplified by cutting the roller
As a result, it is possible to significantly reduce manufacturing equipment costs.
became.   As a result of the present invention, a single-sided reinforced compound such as the above-mentioned double-sided type is used.
Not just a combined corrugated body, but a single reinforced corrugated body
Is equivalent to the conventional known straight corrugated body.
Greater bending strength in the x direction and elastic rigidity in the z direction relative to the cost
Effective as various covering materials, cushioning materials, and structural materials with excellent width
In addition, various reinforced corrugated bodies and
Multi-layered reinforced composite corrugation with multi-layer corrugated body integrated
The sheet is a multi-layered structure using a conventionally known orthogonal corrugated body.
Greater cost compared to die-reinforced composite corrugated body
Various covering materials, cushioning materials and structures with various structural strengths
It was possible to provide excellent materials for construction.   Further, the reinforced corrugated body according to the present invention has a work piece to be processed.
The material of the card is not limited to paper sheets, but other
To plastic sheet, metal sheet, carbon sheet,
Ceramic sheet (reinforced corrugation of the present invention in a state before firing
Processing of the cord body), woven cloth made of various material fibers or
Woven cloth and other various material sheets or appropriate combinations of materials
Combined plastic materials such as composite sheets or thermoplastic
Reinforced corrugated body using a material as a sheet to be processed
There is also a suitable one of the above various material sheets
The flat sheet and the reinforced corrugated body obtained by selecting
There is a reinforced composite corrugated body formed by joining the bodies
It is effective as a product of the invention.   In addition to the above, various conventionally known corrugated bodies and the present invention
Such a reinforced corrugated body and its reinforced composite corrugated body
Those integrally joined are also effective for the present invention.   The above-mentioned various products according to the present invention, that is, strength as a simple substance
Corrugated body and single-sided reinforced composite corrugated body and both
Surface reinforced composite corrugated body and multi-layer reinforced composite corrugated body
The body has various practical uses, and one of its specific uses is
Listed below are the various packaging cases in the field of covering materials.
As a material for body or base material, cushioning material for packaging, etc.
In the field, door panel base material, interior panel body and base
Materials, exterior materials or base materials, structural materials or base materials, homes
It is used as a material for base materials for construction, hypothetical panels for construction, etc.
In addition, in the field of vehicle and aircraft materials,
Materials such as body and base material, interior material body or base material
In other fields, radiators and
It is used as a material for the body of heat exchange elements such as capacitors.
There are other endless fields of application.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 10 are known conventional examples, and FIGS.
The figures are examples of the present invention and related experimental materials. FIG. 1 is an explanatory view showing a shape feature and a main structural strength direction of a known composite corrugated body,
The figure a is a cross-sectional perspective view of the composite corrugated body showing the shearing force in the z-x plane in the x-direction, and the figure b is a sectional perspective view of the composite corrugated body showing the bending external force in the y-x plane in the x-direction. FIG. 4 is a plan perspective view of the composite corrugated body showing a central axis. 2 to 10 show corrugated bodies of the first to ninth conventional examples, and (a), (b) and (c) of each of these figures show a perspective view, a plan view, and a corrugated body, respectively. A cross-sectional view is shown. FIG. 11 shows a matrix diagram of two major performances of structural strength and workability seen in various conventional examples, and a practically feasible area occupied by the reinforced corrugated body and the reinforced composite corrugated body according to the present invention. FIG. 12 is a schematic diagram showing a range of appropriate shape conditions A and B to be satisfied in the reinforced corrugated body and the reinforced composite corrugated body according to the present invention, and an optimum shape region that enables both to be compatible. FIG. 13 shows the reinforced composite corrugated body of the present invention and the shape characteristics thereof. FIG. 13A is a perspective view and FIG. 13B is a plan view. FIG. 14 is a perspective view schematically showing the main structural strength directions in the reinforced composite corrugated body of the present invention. FIG. 15 shows z-x in the reinforced composite corrugated body of the present invention.
6 is a graph of a shape-shear strength curve showing the correlation between the maximum shear stress index in the in-plane x direction and the slope θ of the row slope wall surface or the substantial amplitude ratio H / L of the row. FIG. 16 is a cross-sectional shape of the reinforced corrugated body according to the present invention in the x direction of the corrugated row, and FIG. 17 is a planar waveform showing the meandering ridge portion of the corrugated row. FIG. 18 shows y-x out-of-plane x in the reinforced composite corrugated body.
3 is a graph of a shape-bending strength curve showing the correlation between the maximum bending stress index in the direction and the substantial meandering polymerization rate D / L and the substantial meandering rate D / N of a row. FIG. 19 is a cutaway perspective view schematically showing the roll forming method used for processing and forming the reinforced corrugated body. FIG. 20 is a graph showing the correlation between the collapse occurrence frequency index of the sheet to be processed and the y-direction pre-drawing ratio of the sheet to be processed during roll forming of the reinforced corrugated body. FIG. 21 is a cross-sectional waveform diagram of the corrugated row of the reinforced corrugated body in the x direction and a detailed view of the top and bottom thereof. FIG. 22 is various plan waveform diagrams showing a meandering waveform of the reinforced corrugated body corrugated row. FIG. 23 is a graph of a shape curve showing the correlation between the substantial swing ratio H / L, the substantial meandering ratio D / N, and the y-direction width shift ratio i of the corrugated row in the reinforced corrugated body according to the present invention. 1 ... Reinforced composite corrugated body of the present invention 2 ... Reinforced corrugated body 3 according to the present invention ... Corrugated row of the reinforced corrugated body 4 ... Inclined wall surface 5,5 'of the reinforced corrugated body ... The reinforced corrugated body Top / bottom of the body 6 ... Mountain center axis of the reinforced corrugated body 7 ... Valley center axis of the reinforced corrugated body 8 Neutral axis of the reinforced corrugated body 8 ... Top / bottom of corrugated row and its surroundings Part 01: Work sheet with orthogonal wave in x direction 20: Pair of forming rollers 21: Tooth profile row of forming roller 22: Orthogonal corrugated row L of the above-mentioned sheet to be processed L: Corrugated row cross section waveform Cycle H ... Substantial amplitude of corrugated row cross-section waveform H ₀ ... Apparent amplitude of corrugated row cross-section waveform N ... Corrugated row meandering period D ... Substantial amplitude of corrugated row cross-section waveform D ₀ …… Corrugated row section wave Shape apparent width i …… Width of corrugated row in the y direction i ₀ …… Preliminary width of the sheet to be processed in the y direction w …… Bending width of corrugated row cross section r …… Radius of curvature j… … Substantial meandering rate of corrugated row D / N β …… Allowable stretch deformation rate of sheet to be processed

Claims (1)

(57) [Claims] In a reinforced composite corrugated body in which a reinforced corrugated body consisting of corrugated rows meandering in the row axis direction is integrated with a plate-like sheet, a cycle of a cross-sectional waveform of the corrugated row is L and a substantial amplitude is H, Further, when the period of the planar corrugation of the corrugated row is N, the substantial amplitude is D, and the width-direction limit stretching strain rate of the sheet forming the corrugated row is β, the substantial amplitude rate H / L in the reinforced corrugated body is Is 0.4
≦ H / L ≦ 1.4, the substantially meandering polymerization rate D / L is 0.5 ≦ D / L, and the widthwise shift ratio i of the sheet is i ≦ 8.
% + Β, and is formed such that the substantial swing ratio H / L and the substantial meandering ratio D / N substantially satisfy an inversely proportional relationship when the width-shifting ratio i is constant. A reinforced composite corrugated body characterized by the following. 2. In the corrugated row, the meandering polymerization rate D / L is 1.0 ≦
Claim 1 characterized in that it is D / L
The reinforced composite corrugated body according to the item. 3. 3. The reinforced composite corrugated body according to claim 1 or 2, wherein the cross-section of the corrugated row has a curved or narrow chamfered shape or a shoulder drop shape.