JP2018177270A - Buffer plate - Google Patents

Abstract

The present invention provides a buffer plate which has a high buffer function and is easy to use.
SOLUTION: In the uneven surface 15 provided in the buffer plate 10 of the present invention, the peaks 16 and the valleys 17 are two-dimensionally and alternately arranged, so the load from the load 90 is not a large surface which is collected. Can be received by a plurality of two-dimensionally dispersed peaks 16, and the buffer function is higher than in the prior art. As a result, the load 90 can be protected thicker than in the prior art. Further, since the ridges 16 and the valleys 17 are smoothly continuous, the valleys 17 or the ridges 16 of the uneven surface 15 of the buffer plate 10 are not easily caught by the unevenness of the load 90, and stress concentration is also prevented. It is also excellent in durability.
[Selected figure] Figure 1

Description

  The present invention relates to a buffer plate provided with an uneven surface on at least one of the front and back.

  Heretofore, as this type of buffer plate, one having a plurality of recessed portions stepped down in a stepped manner on both front and back surfaces is known (see, for example, Patent Document 1).

Utility model registration 3175911 gazette (Figure 1)

  However, in the conventional buffer plate described above, in addition to the problem that the buffer function is low, there is a problem that it is easy to catch on the load at the edge of the concave portion and dust easily accumulates in the concave portion.

  The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a buffer plate which has a high buffer function and is excellent in usability.

  The invention according to claim 1 made to achieve the above object is a buffer plate provided with a smooth continuous uneven surface in which peaks and valleys are two-dimensionally alternately arranged and continuous on at least one of the front and back.

  In the invention of claim 2, the outline of the buffer plate has a quadrangular shape, and a plurality of valleys are arranged in a straight line without pinching the peaks, and a plurality of peaks are not pinched the valleys. The buffer plate according to claim 1, wherein a mountain line aligned in a straight line obliquely intersects both the longitudinal and lateral directions of the buffer plate.

  In the invention according to claim 3, the uneven surface is provided on both the front and back, and the back side of the peak of the uneven surface on one of the front and back forms the valley on the other uneven surface, and the one uneven surface on the front and back The buffer plate according to claim 1 or 2, wherein the back side of the valley portion of the surface forms the peak portion of the other uneven surface.

  According to a fourth aspect of the present invention, the buffer plate has a quadrangular outer shape, and the shape of the pair of first diagonal corners is substantially the same as each other and the shape of a pair of second diagonal corners. When two buffer plates different from each other are overlapped with the substantially identical shape facing each other, the ridges of one of the two buffer plates fit into the other valley, while the shapes are different. The buffer plate according to claim 3, wherein the ridges of the two buffer plates are butted when the corner portions facing each other are overlapped.

  In the uneven surface provided in the buffer plate according to claim 1, since the peaks and the valleys are two-dimensionally and alternately arranged, a plurality of two-dimensionally dispersed loads from the load are not collected in a wide surface. It can be received at the peak of the shock absorber, and the buffer function is higher than before. This makes it possible to protect the package thicker from impact than before. In addition, since the peaks and valleys are smoothly continuous, it is difficult for the valleys or peaks of the uneven surface of the buffer plate to be caught by the unevenness of the load, stress concentration is prevented, and the durability is also excellent. In addition to this, there is also an effect that dust is not easily accumulated on the uneven surface, and even if the uneven surface is soiled, it can be easily wiped off. That is, the buffer plate of the present invention is more convenient than conventional.

  In the buffer plate according to claim 2, the valley line in which the plurality of valleys are aligned in a straight line without sandwiching the peaks, and the mountain line in which the plurality of valleys are aligned in a straight line without sandwiching the valleys. Since it crosses diagonally to both the vertical and horizontal directions, when inserting a buffer plate between loads standing up side by side, buffering is applied to the vertically extending or horizontally extending corners or grooves of the loads. Plate valley line or mountain line is hard to get caught.

  In the buffer plate of the third aspect, the back side of the peak portion of the uneven surface of the front and back forms a valley of the other uneven surface, and the back side of the valley portion of the uneven surface of the front and back is a mountain of the other uneven surface As a part is formed, a large collapse margin of the peak can be secured, and also in this point, the buffer function becomes high.

  In the configuration according to the fourth aspect, when two buffer plates are stacked such that corner portions having substantially the same shape face each other, one peak portion of the two buffer plates is fitted to the other valley portion, while the shape is When the different corner portions are made to face each other and piled up, the peak portions of the two buffer plates abut each other. As a result, it is possible to change the stacking method of the buffer plates to be stacked and change the entire thickness of the buffer plates that are stacked according to the size of the clearance of the load.

The perspective view of the buffer plate concerning a 1st embodiment of the present invention The perspective view which expanded a part of buffer plate The perspective view which expanded a part of buffer plate Side view of buffer plate Perspective view of buffer plate in nesting condition Perspective view of buffer plates in stacking condition Side cross-sectional view of usage example of buffer plate Side cross-sectional view of usage example of buffer plate Side cross-sectional view of the use of nested buffer plates Side cross-sectional view of an example of use of stacked buffer plates Front perspective view of the buffer plate according to the second embodiment Back side perspective view of the buffer plate The perspective view of the buffer plate concerning the modification of the present invention Front view of a buffer plate according to a modification of the present invention

First Embodiment
Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 10. The buffer plate 10 of the present embodiment shown in FIG. 1 is, for example, a molded article formed by bead-type in-mold molding in which beads of foamed resin (for example, foamed polyethylene or foamed polypropylene) are filled in a mold and vapor-fused. The whole is, for example, in the form of a rectangular plate, and the horizontal side thereof is, for example, approximately twice the vertical side.

  Further, the buffer plate 10 has the entire outer edges of the front and back sides bordered by the frame-shaped flat surfaces 11 and 11, respectively, and the entire inside of the frame-shaped flat surfaces 11 and 11 of the front and back is the uneven surface 15 according to the present invention. . Furthermore, while the pair of first diagonal corner portions 21 of the buffer plate 10 has a C-chamfered shape having a so-called C-chamfered flat surface 21A, the remaining pair of second diagonal corner portions 22 is In other words, it has an R-chamfered shape having a so-called R-chamfered curved surface 22A.

  In addition, as shown in FIG. 2, arc surfaces 13 and 13 are formed by R-chamfering at corner portions between the two frame-shaped flat surfaces 11 and 11 on the front and back and the side surface 12 between them. , 13 and the entire side surface 12 slightly protrudes in a stepped manner.

  As shown in FIG. 1, the concavo-convex surface 15 has a shape in which the peak portions 16 and the valley portions 17 are alternately arranged two-dimensionally alternately and smoothly and continuously. Specifically, the ridges 16 and the valleys 17 are alternately arranged in both the first direction H1 parallel to the longitudinal side of the buffer plate 10 and the second direction H2 parallel to the lateral side. Further, the pitch between the mountain portions 16 and 16 aligned in the first direction H1 and the pitch between the mountain portions 16 and 16 aligned in the second direction H2 are the same. Furthermore, as shown in FIG. 2, the back side of the peak portion 16 of one uneven surface 15 of the front and back forms the valley portion 17 of the other uneven surface 15, and the back side of the valley portion 17 of one uneven surface 15 is the other The ridges 16 and the valleys 17 are inverted to each other to form the ridges 16 of the uneven surface 15 of FIG. And as shown in FIG. 4, when the buffer plate 10 is seen from the side, the peak part 16 has protruded from the frame-shaped flat surfaces 11 and 11 of front and back, respectively. In FIG. 2 and FIG. 3, the mountain portion 16 and the valley portion 17 and the mountain connecting portion 18 described next are shown with different hatching.

  As shown in FIG. 2, an intermediate height between the peak 16 and the valley 17 is defined between the peaks 16 and 16 adjacent to each other in the direction inclined by 45 degrees with respect to the first direction H1 and the second direction H2. A mountain contact portion 18 is provided to smoothly contact the mountain portions 16 and 16 with each other. When the buffer plate 10 is viewed from the side, these mountain connecting portions 18 are hidden between the frame-shaped flat surfaces 11 and 11 on the front and back (see FIG. 4).

  Here, as shown in FIG. 2, an imaginary first reference line A connecting a plurality of mountain portions 16 aligned in the first direction H1 and an imaginary second line connecting the plurality of mountain portions 16 aligned in the second direction H2. Assuming that the reference line B is the inter-line distance between the first reference lines A and A and the inter-line distance between the second reference lines B and B, the ridges 16 are arranged in the first direction H1 and the second direction H2. It is half the pitch between the 16th. In addition, a boundary line L1 between the uneven surface 15 and the four sides of the frame-shaped flat surface 11 is a half distance of the distance between the first reference line A or the second reference line B closest to the boundary line L1 ( That is, they are disposed at positions separated by 1⁄4 of the pitch between the mountain portions 16 and 16 arranged in the first direction H1 and the second direction H2.

  Further, as shown in FIG. 3, in the direction inclined 45 degrees to one side with respect to the first direction H1, a plurality of peak lines C are arranged in a straight line without sandwiching the valleys 17 with a plurality of peak portions 16; Similarly, in the direction in which the valley portion 17 and the valley line D aligned in a straight line without sandwiching the peak portion 16 are alternately arranged and inclined 45 degrees to the other with respect to the first direction H1, similarly, the mountain line C and the valley line D And are alternately arranged. Here, while the mountain line C projects the mountain parts 16 from the group of mountain connecting parts 18 while the valley line D sinks the group of valley parts 17 from the group of mountain connecting parts 18 with respect to the entire mountain line C. The entire valley line D is in a state of being sunk from the mountain connection portion 18 by the height of the mountain portion 16. And in the buffer plate 10 of this embodiment, such a mountain line C and a valley line D extend in a direction inclined 45 degrees with respect to both the longitudinal and lateral directions.

  Furthermore, as shown in FIG. 1, on the front side of the buffer plate 10, the valley line D is positioned on the center line of all the corners of the four corners of the uneven surface 15, and the mountain connecting portion 18 on the valley line D is uneven Located at the four corners of fifteen. On the other hand, on the back side of the buffer plate 10, although not shown, the mountain line C is located on the center line of all corners of the four corners of the uneven surface 15, and the mountain connecting portions 18 on these mountain lines C are at four corners of the uneven surface 15. It is arranged. Thus, when the buffer plates 10 are stacked in two layers, when the front side surface of the other buffer plate 10 is superimposed on the back side surface of one buffer plate 10, as shown in FIG. It is in a so-called nesting state where the ridges 16 are fitted to the other valleys 17. On the other hand, when the back side surfaces or the front side surfaces of the two buffer plates 10 are stacked, as shown in FIG. 6, the so-called stacking state in which the peak portions of the two buffer plates 10 abut each other is obtained.

  Further, between the two buffer plates 10 in the nesting state, the corner portions 21 and 21 of the C-chamfered shape and the corner portions 22 and 22 of the R-chamfered shape overlap with each other (see FIG. 5). Between the two buffer plates 10, 10, the C-shaped corner 21 and the R-shaped corner 22 overlap (FIG. 6). In other words, when stacking the buffer plates 10 in two layers, it is possible to select the nesting state and the stacking state by overlapping the corner portions 21 and 22 of the same shape or corner portions 21 and 22 of different shapes. it can.

  In addition, the uneven surface 15 described above can also be specified as a structure in which continuous waves of two sin waveforms orthogonal to each other at the same wavelength and the same wave height are superimposed. In such a case, the waves of the two continuous waves overlap each other to form a peak 16, the valleys overlap to form a valley 17, and the waves and valleys overlap to form a mountain junction 18 become.

  The description regarding the configuration of the buffer plate 10 of the present embodiment is as described above. Next, the function and effect of the buffer plate 10 will be described. This buffer plate 10 is used, for example, by being disposed in the gap between the parallel-arranged loads 90, 90 as shown in FIG.

  Here, in the uneven surface 15 included in the buffer plate 10 of the present embodiment, since the peaks 16 and the valleys 17 are two-dimensionally and alternately arranged, the load from the load 90 is not a large surface that is collected. Can be received by a plurality of two-dimensionally dispersed peaks 16, and the buffer function is higher than in the prior art. The buffer plate 10 has the uneven surface 15 on both the front and back sides, and the back side of the peak portion 16 of one uneven surface 15 of the front and back forms the valley portion 17 of the other uneven surface 15. Since the back side of the valley portion 17 forms the peak portion 16 of the other uneven surface 15, a large crushing margin of the peak portion 16 can be secured, and also in this point, the buffer function becomes high. By these, it is possible to thickly protect the package from the impact than in the past.

  Furthermore, since the peaks 16 and the valleys 17 of the uneven surface 15 are smoothly continuous, the peaks 16 or the valleys 17 of the uneven surface 15 of the buffer plate 10 are not easily caught by the unevenness of the luggage 90. Moreover, as shown in FIG. 3, the valley line D in which the plurality of valleys 17 are aligned in a straight line without sandwiching the peaks 16 and the mountain line in which the plurality of valleys 16 are aligned in a straight line without sandwiching the valleys 17. C crosses both the vertical and horizontal directions of the buffer plate 10, so when inserting and removing the buffer plate 10 between the loads 90 and 90 standing upright in the horizontal direction, the up-down direction of those loads 90 Alternatively, it is possible to avoid a situation in which the valley line D or the mountain line C of the buffer plate 10 is caught in the horizontally extending corner portions 92 and the groove portions 93. Further, as shown in FIG. 8, even in the case where the package 90 is formed by bundling a plurality of cylindrical products 91, the valley portions 17 of the buffer plate 10 are applied to each of the respective products 91. Shock can be absorbed.

  In addition, since the peak portion 16 and the valley portion 17 of the uneven surface 15 are smoothly continuous, the effect that dust is not easily accumulated in the valley portion 17 and that the uneven surface 15 can be easily wiped off is also exhibited. . Furthermore, since stress concentration is prevented and durability is high, it can be bent and used. That is, the buffer plate 10 of the present embodiment is more convenient than the prior art.

  In addition, as shown in FIG. 5, when two buffer plates 10, 10 are overlapped with corner portions 22, 22 having substantially the same shape facing each other, one peak portion 16 of the two buffer plates 10, 10 becomes When the two buffer plates 10, 10 are fitted in the other valley portion 17 and the two buffer plates 10, 10 are overlapped with the corner portions 21, 22 having different shapes facing each other, the two buffer plates 10, 10 are formed. The ridges 16, 16 are butted against each other. Thereby, the stacking method of the buffer plates 10, 10 to be stacked is changed, and as shown in comparison with FIGS. 9 and 10, the entire thickness of the buffer plates 10, 10 stacked is a load 90, It can be changed according to the size of 90 gaps. Also in this point, the buffer plate 10 of the present embodiment is superior to the conventional one in usability.

Second Embodiment
The front side surface of the buffer plate 10V of this embodiment is shown in FIG. 11, and the back side surface of the buffer plate 10V is shown in FIG. The buffer plate 10V of the present embodiment is provided with an information display surface 30 which does not correspond to the "concave / convex surface" according to the present invention at the center of the front and back of the buffer plate 10V of the first embodiment. And while the uneven surface 15 which concerns on this invention is formed in the whole front and back of the buffer plate 10V except the information display surface 30 and the frame-shaped flat surface 11, the several flat surface 31 is formed in the uneven surface 15 of a back side. ing.

  The information display surface 30 is, for example, a square as a whole, and has a flat surface flush with the frame-shaped flat surface 11 and imprinted with a management number, an owner name or a manufacturer name of the buffer plate 10V. The flat surface 31 is a circular flat surface formed by cutting the top portions of a plurality of peak portions 16 in the uneven surface 15, and is formed by a supply feeder of a forming die for forming the buffer plate 10V. .

[Other embodiments]
The present invention is not limited to the embodiments, and, for example, the embodiments described below are also included in the technical scope of the present invention, and various modifications are possible without departing from the scope of the present invention. Can be implemented.

  (1) Although the buffer plates 10 and 10 V of the first and second embodiments are entirely square, the overall shape of the buffer plate is not limited to a square, and for example, is shown in FIG. The entire shape may be circular like the buffer plate 10W.

  (2) In the buffer plates 10 and 10 V of the first and second embodiments, the first reference line A and the second reference line B intersect at 90 degrees, with the peaks 16 and the valleys 17 alternately arranged. However, as in the buffer plate 10X shown in FIG. 14, the first reference line A and the second reference line B may intersect at an angle other than 90 degrees. In FIG. 14, the mountain portion 16 is indicated by “o”, and the valley portion 17 is indicated by “x”.

  (3) Further, as in the buffer plate 10X shown in FIG. 14, the mountain line C and the valley line D may be configured to extend parallel to both the vertical and horizontal directions.

  (4) Although the buffer plates 10 and 10V of the said, 1st and 2nd embodiment were equipped with the uneven surface 15 on both surfaces of the front and back, it is good also as a structure provided with the uneven surface 15 in only one side.

10, 10V, 10W, 10X Buffer plate 15 Irregular surface 16 Mountain portion 17 Valley portion 18 Mountain connection portion 21, 22 Corner portion C Mountain line D Valley line

Claims (4)

  A buffer plate comprising a smooth continuous uneven surface in which peaks and valleys alternate two-dimensionally and is alternately arranged on at least one of the front and back. The outline of the buffer plate has a square shape,
A plurality of valley lines are arranged in a straight line without sandwiching the peaks, and a plurality of mountain lines are arranged in a straight line without sandwiching the valleys in both the longitudinal and transverse directions of the buffer plate. The buffer plate according to claim 1, which is diagonally crossed. The uneven surface is provided on both the front and back,
The back side of the peak portion of one of the uneven surfaces of the front and back forms the valley portion of the other uneven surface,
The buffer plate according to claim 1 or 2, wherein the back side of the valley portion of one of the front and back uneven surfaces forms the peak portion of the other uneven surface. The outer shape of the buffer plate has a rectangular shape, and the shape of the pair of first diagonal corner portions is substantially the same as each other and different from the shape of the pair of second diagonal corner portions,
When two buffer plates are stacked with the substantially identical shapes facing each other, one of the ridges of the two buffer plates fits into the other of the valleys, while the shapes are different. The buffer plate according to claim 3, wherein when the corner portions face each other and overlap, the ridges of the two buffer plates abut each other.