JP2011089809A - Device and method for evaluating rolling resistance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device or method for evaluating the effect exerted on the rolling resistance of a cylindrical container by internally moving the sealing matter housed in the cylindrical container. <P>SOLUTION: In the device for evaluating rolling resistance is composed of two or more cylindrical containers and an inclined stand, the cylindrical containers have the mutually substantially same shape and include the mutually substantially same material and the sealing matters of the same kind are sealed in the cylindrical containers so as to have the substantially same voids. At least one cylindrical container has a partition demarcating a plurality of container internal spaces. The cylindrical containers have mutually different container internal spaces. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention proposes a technique for evaluating the influence of the internal movement of a granular, powdery, liquid, or other enclosure contained in a cylindrical container on the rolling resistance of the container.

  An object of the present invention is to provide an apparatus and a method for evaluating the influence on the rolling resistance of a cylindrical container due to the internal movement of the enclosed material stored in the cylindrical container. .

The rolling resistance evaluation apparatus according to the present invention comprises two or more cylindrical containers and an inclined table, and the cylindrical containers are formed of substantially the same shape and material, and are of the same kind. The at least one cylindrical container has a partition that divides into a plurality of container internal spaces, and the cylindrical containers have different container internal spaces from each other. It is what you have.
Here, “substantially the same shape and material” means that some difference in the shape and material between containers is allowed, and “substantially the same porosity” means the porosity between containers. Of 5 to 10%.
Further, the “porosity” as used herein means a value obtained by subtracting the volume of the enclosure from the volume of the container and dividing this by the volume of the container, expressed as a percentage.

  Preferably, the partition is disposed so as to pass through a central axis of the cylindrical container.

  Preferably, the encapsulant is made of a granular material.

  The rolling resistance evaluation method of the present invention is a rolling resistance evaluation method comprising two or more cylindrical containers and an inclined table, wherein the cylindrical containers are formed of substantially the same shape and material. The same kind of inclusions are enclosed with substantially the same porosity, and at least one of the cylindrical containers has a partition that divides into a plurality of container internal spaces, and the cylindrical containers are different from each other. It has an internal space, and any of the cylindrical containers rolls on the inclined surface of the inclined table from a position of substantially the same height, and measures and compares the rolled distance of the cylindrical container. There is.

According to the rolling resistance evaluation apparatus of the present invention, the internal porosity of each of the cylindrical container provided with a partition that divides the interior into a plurality of small spaces and the cylindrical container provided with no partition are substantially equal to each other. In the case of rolling the cylindrical container, in the case of a container provided with a partition inside, by restricting the amount of movement of the enclosed matter in the circumferential direction compared to a container without a partition, If the container is rolled with the same size input, the consumption of the input energy due to the internal movement of the enclosure will be relatively small in the container provided with a partition inside. As a result, a container provided with a partition is rolled over a longer distance than a container without a partition.
Therefore, by comparing the rolling amounts of a plurality of containers, it is possible to evaluate the influence of the internal movement of the enclosed material enclosed on the rolling resistance of the cylindrical container.

  Here, when the partition is arranged to pass through the central axis of the cylindrical container, a small space that is uniform in the rolling direction of the container can be easily formed inside the cylindrical container. As a result, proper and accurate evaluation of the rolling resistance of the container can be performed.

  Here, when the inclusion is made of a granular material, since the granular material has a larger diameter than the liquid or powdery material, the container partitioning the interior into a plurality of small spaces can be simplified. In addition, the mutual movement of the space of the granular material partitioned by the partition is sufficiently prevented, and the influence on the rolling resistance due to the internal movement of the granular material as the inclusion can be accurately evaluated.

  Further, according to the rolling resistance evaluation method of the present invention, when any of the cylindrical containers rolls on the inclined surface of the inclined base from a position at substantially the same height, the interior is a small space. Since there is a difference in the rolling distance between the container that is partitioned into the container and the container that is not partitioned based on the movement restriction of the inner enclosure, the rolling of the cylindrical container is compared by comparing the rolling distance of these containers. Resistance can be evaluated.

It is a perspective view shown about the cylindrical container used for embodiment of this invention. It is a disassembled perspective view which shows the cylindrical container shown in FIG. 1 about the state before a connection. It is a cross-sectional view shown about the cylindrical container used for other embodiment. It is a permeation | transmission perspective view which shows the state which accommodates the enclosure thing in the cylindrical member used for other embodiment. It is a permeation | transmission perspective view which shows the state which seals the cylindrical member used for other embodiment. It is a perspective view shown about the apparatus of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
FIGS. 1A and 1B are perspective views showing one cylindrical container 1 and another cylindrical container 11 used in the present invention, respectively. Here, although the containers to be evaluated are the two cylindrical containers 1 and 11, three or more cylindrical containers may be used as the evaluation target containers.

  The cylindrical containers 1 and 11 shown in the figure have the same volume, dimensions, and material, and each of the containers 1 and 11 has a cylindrical member 2 whose one end side (the lower side in the figure) is sealed with a low wall, The lid members 3 and 13 are attached to the other end of 12 (upper end in the figure) by fastening or the like.

  Here, as shown in an exploded perspective view in FIG. 2, a partition 4 is provided in one cylindrical container 1 so as to spread radially on the outer peripheral side with the axial direction of the container 1 as the center. While the inside of 1 is divided into eight equal small spaces 5, it is assumed that such a partition is not provided inside the other cylindrical member 11.

The partition 4 inside the cylindrical member 2 can have various shapes. For example, as shown in FIG. 3A in a cross-sectional view of the cylindrical member 2, The inside of the container can be partitioned into, for example, four equal small spaces 5 by the partitions 4 that are formed radially about the axial direction, and, as shown in FIG. 3 (b), a plurality of partition walls that are perpendicular to each other. By the partition 4 which becomes, the inside can also be divided into a plurality of square shapes or the like in the cross section.
Further, although not shown, each of the partition walls constituting the partition 4 can be formed in a curved surface shape.

Then, in the space inside the cylindrical members 2 and 12 whose one end is sealed, a plurality of spherical particles 6 and 16 of the same type, for example made of plastic, are stored in the container. The containers 1 and 11 are sealed by fitting the lid members 3 and 13 to the other end sides of the cylindrical members 2 and 12 in a state where the movable members are stored leaving a space that can move.
In this way, by enclosing the granular bodies 6 and 16 in the container in a state in which a space in which the granular bodies 6 and 16 can move in the container is secured, the containers 1 and 11 are rolled with the rolling of the containers 1 and 11. The internal granular bodies 6 and 16 can move inside.

In this case, the granular materials 6 and 16 are enclosed in the containers 1 and 11 so that the internal porosity of one container 1 and the internal porosity of the other container 11 are substantially the same.
Here, the void ratios in the plurality of small spaces 5 formed inside one container 1 can be equal to each other, but these void ratios may be different for each small space 5. Good.

In addition, here, the inclusions stored in the containers 1 and 11 are the granular bodies 6 and 16 in the figure, but this may be a liquid or a powdery body.
In particular, when the encapsulated material is a liquid, there is a gap between the small space 5 formed in one container 1 between the partition 4 and the tubular member 2 between the partition 4 and the tubular member 2. It is necessary to prevent the partition 4 from being formed between the partition walls.

  In the illustrated cylindrical containers 1 and 11, male screw portions 2 </ b> A and 12 </ b> A formed at the end portions of the cylindrical members 2 and 12 on the attachment side to the lid members 3 and 13 and the cylinders of the lid members 3 and 13. The internal threads of the shape portions 3A and 13A are screwed together with a female screw portion (not shown) to connect these two members. However, both members are not limited to this, and various attachments are possible. It can be interconnected by means.

  By the way, as this cylindrical container, what is necessary is just a thing which can form a partition in an inside and can accommodate an enclosure, for example, the perspective which saw through the surrounding surface of the cylindrical member in FIG. As illustrated in the figure, the cylindrical member 22 is formed with a partition 24 inside and closed at both ends, and the cylindrical member 32 is closed at both ends without any partition inside. In the figure, circular holes 27, 37 are formed, and after the inclusions 26, 36 are inserted into the container from the holes 27, 37, the size of the holes 27, 37 is substantially the same as shown in FIG. In the drawing, the disk-like tenon members 28 and 38 are fitted and fixed to the respective end surfaces of the cylindrical members 22 and 32 so as to close the holes 27 and 37, and the cylindrical members 22 and 32 are sealed to form a cylinder. A cylindrical container 21, 31 It can be.

  As shown in the perspective view of FIG. 6, for example, the two cylindrical containers 1 and 11 created as described above are positioned at the same height on the flat or curved slope of the slope base 50. In addition, by arranging both of them and rolling on the slope, it is possible to give rolling inputs of the same size.

  As described above, when any of the cylindrical containers 1 and 11 are rolled from the same height position of the tilting table 50 and the distances of the respective containers are measured and compared, Compared to the case where the containers 1 and 11 are input to roll on the plane, the containers 1 and 11 can be given an equal amount of energy, so that the evaluation can be easily performed. Thus, the influence of the amount of rolling 11 and the internal movement of the inclusions 6 and 16 on the rolling resistance can be evaluated more appropriately.

  Here, in order to give the two containers 1 and 11 inputs having the same size, the same force is applied to each of the containers 1 and 11 on the plane from the rear of the container. They can also be rolled on a flat surface.

  When the cylindrical containers 1 and 11 are rolled in this way, the internal inclusions, here, the granular bodies 6 and 16 move in the moving space of the granular bodies 6 and 16 secured in the container while colliding with each other. As a result, a part of the input energy applied to the containers 1 and 11 is consumed by this movement of the granular bodies 6 and 16. In this case, in the container 1 in which the partition 4 is formed, the internal movement of the granular bodies 6 and 16 is limited due to the presence of the partition 4, so that the rolling is performed as compared with the container 11 without the partition. The amount of movement, that is, energy loss inside the container is small.

  As a result, the container 1 provided with the partition 4 rolls a longer distance than the container 11 without the partition, and a difference in the amount of rolling occurs between the containers 1 and 11. By measuring and comparing the amount of rolling of each of the containers 1 and 11, it is possible to evaluate the influence of the movement of the inclusion in the container on the amount of rolling of the container.

  Next, the effects of the evaluation apparatus and the evaluation method of the present invention have been verified and will be described below.

The container 1 provided with a partition inside used in the evaluation apparatus and the evaluation method of the present invention has the configuration shown in FIGS. 1A and 2A, and the container 11 without a partition inside is shown in FIG. ) And the configuration shown in FIG. Table 1 shows the dimensions and the like of each member.
In addition, the internal space of the container 1 was divided into eight equal small spaces 5 by the partitions 4, and the void ratios of the small spaces 5 were equal to each other.

Each of these containers 1 and 11 is rolled on the slope from the top of the slope base having a base of 300 mm and a height of 50 mm as shown in FIG. 6 to measure the rolling distance of each of the containers 1 and 11. The rolling distance of the container 1 provided with a partition was evaluated by an index with the container 11 having no partition as a control.
The results are shown in Table 2.

  From the results of Table 2, it can be seen that the container 1 provided with the partition 4 inside rolls over a longer distance than the container 11 without the partition. From this, according to the apparatus and method of the present invention, It was found that the rolling resistance of the container can be properly evaluated by the movement of the inclusions.

  Since the thing concerning this invention has a possibility of sale, this invention can be utilized industrially.

1, 11, 21, 31 Cylindrical container 2, 12, 22, 32 Cylindrical member 3, 13 Lid member 4, 24 Partition 5, 25 Small space 6, 16, 26, 36 Granule 27, 37 Hole 28, 38 Disc-shaped member 50 Slope base

Claims (4)

An evaluation device for rolling resistance comprising two or more cylindrical containers and an inclined table,
The cylindrical containers are substantially the same shape and material as each other,
The same type of inclusions are enclosed with substantially the same porosity,
At least one of the cylindrical containers has a partition that partitions into a plurality of container internal spaces,
The rolling resistance evaluation apparatus according to claim 1, wherein the cylindrical containers have different container internal spaces.   The rolling resistance evaluation apparatus according to claim 1, wherein the partition is disposed to pass through a central axis of the cylindrical container.   The rolling resistance evaluation apparatus according to claim 1, wherein the inclusion is made of a granular material. An evaluation method of rolling resistance comprising two or more cylindrical containers and an inclined table,
The cylindrical containers are substantially the same shape and material as each other,
The same kind of inclusions are enclosed with substantially the same porosity,
At least one of the cylindrical containers has a partition that partitions into a plurality of container internal spaces,
The cylindrical container has the container internal space different from each other,
Any of the cylindrical containers rolls on the inclined surface of the inclined table from a position at substantially the same height, and measures and compares the rolling distance of the cylindrical container. Evaluation methods.

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