JPH04124943U - Bottom plate adhesive structure of multi-chamber container - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate poor adhesion of the bottom plate of a multi-chamber container divided by partition plates. [Structure] The inner surface 7 of the bottom plate 2 is adhered to the end surface 5 of the peripheral wall 3 of the body 1, the partition plate 4 of the body 1 is fitted into the hole 11 provided in the bottom plate 2, and the outer surface of the bottom plate 2 is attached. 8 and the end surface 6 of the partition plate 4 are adhered.

Description

[Detailed explanation of the idea]

001

[Industrial application field]

In the present invention, the body is divided into multiple chambers in the axial direction of the container by partition plates. Each compartment is separated and sealed by a bottom plate glued to the end face of the body peripheral wall and the end face of the partition wall. This invention relates to an adhesive structure between a body and a bottom plate in a chained multi-chamber container.

002]

[Conventional technology]

For example, the multi-chamber container of the above-mentioned form has a cylindrical body with a single partition plate. Divided vertically into two chambers with a semicircular cross section, or divided into a range of 120 degrees from the axis of the body. There are some that are divided into three rooms with radial partition plates, but in any case, the body Unlike ordinary tube containers, the body end is crushed and the surrounding wall comrades are separated. Since it is difficult to form an end seal by bonding face-to-face, the bottom end is attached to the lower end of the body. It will be necessary to glue and seal the boards.

003 An example of such an adhesive structure between the trunk and the bottom plate is disclosed in the applicant's previous application (Japanese Patent Application No. -283347). In this case, the end face of the body including the partition plate is connected to the bottom plate. It has a structure in which it is brought into contact with the surface and the two are melted and bonded. In addition, in that case, the bottom plate It is often crimped with a hot platen from the outer surface side.

004 Further, a groove or a stepped portion is formed in the bottom plate so that the peripheral wall of the body portion and the partition plate do not move laterally, It is also known to adhere in a positioned state.

005]

[Problem that the idea aims to solve]

However, the above-mentioned prior art has the following problems. (1) Strictly control the length of the body peripheral wall and partition plate, and attach each end of the peripheral wall and partition plate to the bottom plate surface. It takes time and effort to adjust the end of the body so that they are in uniform contact with each other.

006] (2) When crimping from the back of the bottom plate with a hot plate, etc., the partition plate located in the center of the body Since pressure is not easily transmitted, it is easy to cause poor adhesion between the end surface of the partition plate and the surface of the bottom plate. The isolation function of the room deteriorates.

007] (3) When using a sealing method using a hot platen, high-pressure short-time bonding will result in poor quality. Deflection occurs in the center of the cutting plate, and a gap is created between the end of the partition plate and the inner surface of the bottom plate. As a result, it is necessary to find low-pressure, long-time crimping work, which reduces work efficiency.

008

[Means to solve the problem]

In order to solve this problem, in this invention, the end surface of the body peripheral wall is in contact with the inner surface of the bottom plate. At the same time, the end of the partition plate is inserted into the hole for penetration and insertion provided on the bottom plate. The structure is such that the end face of the cut plate is adhered to the outer surface of the bottom plate.

009] More specifically, the inner surface of the bottom plate to which the end surface of the body peripheral wall is attached is provided at the periphery of the bottom plate. The bottom surface of the groove for fitting the peripheral wall end, and the outer surface of the bottom plate to which the partition plate end surface is bonded is , an end face of a protruding edge defining the hole.

010] In addition, in order to bond the end face of the partition plate to the outer surface of the bottom plate, in the processing process, When the end surface of the body peripheral wall abuts the inner surface of the bottom plate, the end of the partition plate passes through the hole, The dimensions may be such that it slightly protrudes from the hole and its end surface is exposed.

011]

[Effect]

Since the present invention has the above-mentioned structure, the end surface of the peripheral wall of the body is on the inner surface of the bottom plate. At the same time as bonding, the end of the partition plate protruding from the hole provided in the bottom plate closes the hole. , the container is made into a multi-chamber container with good sealing properties.

012]

【Example】

Two embodiments will be described below.

013] Example 1 The body 1 of this example container is shown in FIG. This body 1 is attached to the inner surface of a cylindrical peripheral wall 3. It is equipped with a partition plate 4, and there are vertically long private rooms with a semicircular cross section on the left and right sides of the partition plate 4, respectively. is formed.

014] The body 1 is made of low-density polyethylene and is molded by ordinary extrusion or injection molding. The peripheral wall 3 and the partition plate 4 are integrally formed. Therefore, the end 5 of the peripheral wall 3 and the end face of the partition plate 4 6 are molded so that they are located in the same plane, and the partition plate 4 is located further away than the peripheral wall 3. It is made slightly thicker.

015] Figure 2 shows the structure of the bottom plate 2, (1) is a perspective view, and (2) is a cross-section taken along the line A-A'. It is a front view.

016] The bottom plate 2 is made of resin of the same type as the body 1 and has a substantially disk shape, and its inner surface (container Example: facing inside the body part) On the peripheral edge of the 7 side, there is a U-shaped part that accommodates the end of the peripheral wall 3 of the body part 1. An annular groove 9 is formed, and the bottom surface 10 of the groove 9 becomes an annular flat part and comes into contact with the peripheral wall end surface 5. It is configured to be glued together.

017] Further, in the center of the bottom plate 2, there is a hole into which the partition plate 4 is inserted and the end thereof passes through. 11 is open in the radial direction, and a pair of protruding edges 12 defining the hole are provided at the edges thereof. extends slightly toward the outer surface 8 side. Note that the end surfaces 12' of these edges are It is located lower than the groove bottom surface 10, that is, closer to the inner surface 7 than the bottom surface 10.

018] On the other hand, both ends of the hole 11 sandwiched between the edges 12 are connected to an inner wall 1 that corresponds to one wall of the groove 9. 3 continues to an inner wall notch 15 which is cut out to the same height as the bottom surface 10. Furthermore, this The inner wall portion 13 of the holder is continuous with a bottom plate 14 which slopes toward the inner surface 7 toward the edge 12, and the inner wall portion 13 of the The end of the bottom plate 14 is connected to the protruding edge 12, but the end of the partition plate 4 is connected to the hole 11. The guide portion 16 is configured to widen toward the inner surface 7 side for easy insertion. It is formed.

019] FIG. 3 shows a partially cutaway perspective view of the bottom plate 2 temporarily attached to the trunk 1, and a longitudinal sectional view thereof. It is shown as FIG.

020] When the bottom plate 2 is placed over the body 1, the peripheral wall 3 of the body 1 fits into the groove 9, and the peripheral wall end face 5 fits into the groove. At the same time, the end of the partition plate 4 fits into the hole 11, and the tip part passes through the hole, and the end surface 6 is exposed beyond the end surface 12' of the edge 12. in the end, The entire barrel is held in place by the grooves and holes, and radial rocking is prevented. Therefore Even if the outer surface of the bottom plate 2 is crimped using a hot platen, the peripheral wall 3 and the partition plate 4 will not fall laterally. There's nothing wrong with that.

021] In Figure 5, the bottom plate 2 is bonded to the body 1 by pressing a hot plate from the outer surface side of the bottom plate 2. It is a longitudinal cross-sectional view of the state in which the peripheral wall end surface 5 and the groove bottom surface 10 are bonded, and the end surface 6 of the partition plate 4 is bonded. is expanded and pressure-bonded to the end surface 12' of the edge 12. In addition, both ends of the partition plate 4 The part fits into the inner wall notch 15 (not shown), but the partition plate close to this part The end portion of 4 extends to cover the periphery of the inner wall notch 15 and is adhered to the inner wall 13. Ru.

022] In this way, the partition plate 4 penetrates the bottom plate 2 and is bonded, so the end face of the partition plate 4 and the bottom plate 2 is not only strongly bonded, but also the shape and dimensional accuracy of the end of the partition plate 4 is ensured. It may be somewhat rough, and the bonding process does not need to be performed under high pressure.

023] Example 2 This example is a case of a container having a three-chamber configuration, and FIG. 6 shows the structure of the body 1 thereof.

024] Three partition plates 4 are oriented toward the axis at 120° intervals from the inner surface of the cylindrical peripheral wall 3 at three locations. extend and connect at the axis, dividing the body into thirds in the longitudinal direction. 5 and 6 are the peripheral wall 3 and the finish, respectively. The end face of the cut plate 4 is the same as in Example 1.

025] Figures 7 (1) and (2) are a perspective view and a sectional view taken along the line B-B' of the bottom plate 2 in this example, respectively. The difference from the bottom plate 2 of Example 1 is that 3 A hole 11 extending in the direction is formed corresponding to the partition plate, and the bottom plate 14 is flat. This point is formed by

026] The end surface 12' of the protruding edge 12 has a shape when the partition plate 4 of the body 1 is fitted into the hole 11. It may be located inward from the end surface 6 of the cut plate, or it may be located at three locations on the inner wall 13 that are connected to the hole 11. The formation of the inner wall notch 15 is based on Embodiment 1, and the other configurations are the same as in the actual embodiment. This is the same as in Example 1.

027] FIG. 8 is a partially cutaway perspective view showing a state in which the bottom plate 2 is temporarily attached to the body part 1, and is a partially cutaway perspective view showing a state in which the bottom plate 2 is temporarily attached to the body part 1. As in the case, the end of the peripheral wall 3 fits into the groove 9, and the end of the partition plate 4 penetrates the hole 11. The end surface 6 is exposed above the end surface 12' of the edge 12.

028] In Figure 9, the temporarily attached bottom plate is crimped with a hot plate from the outer surface 8 side and attached to the body part 1. It is a perspective view showing the state in which the partition plate is attached, and the end face 6 of the partition plate extending in three directions from the center of the bottom plate 2 is It spreads and adheres so as to cover the edge 12.

029] The partition plate end face 6 near the inner wall notch 15 contacts the inner wall 13 around the inner wall notch 15. The state of adhesion between the peripheral wall end surface 5 and the groove bottom surface 10 of the bottom plate 2 is also the same as in Example 1. The same is true.

030]

[Effect of the idea]

Since the present invention is constructed as described above, it has the following effects.

031] (1) The end of the partition plate protrudes outward from the hole in the bottom plate, and the protruding part Since the parts are heat-compressed so that they spread out, there may be variations in the dimensions of the protruding end surface of the partition plate. However, no actual damage will occur. Therefore, the length of the partition plate relative to the surrounding wall, and the distance between each part of the partition plate Since there is no problem even if there are steps etc. on the body, it is easy to cut the body to the specified dimensions. It's easy.

032] (2) As the partition plate and bottom plate are bonded stably and firmly, the isolation performance of each room is improved. It's nice to have the bottom plate facing down so that the contents don't get mixed up during storage.

033] (3) The protruding end of the partition plate that comes into direct contact with the heating plate is thermally melted and adhered to the bottom plate. Therefore, it is possible to melt and bond in a short time without pressing with high pressure, and the thermal efficiency and pressure efficiency are high. good.

[Brief explanation of drawings]

[Fig. 1] A perspective view showing the container body in Example 1 of the present invention

[Figure 2] Also shows the bottom plate, (1) is its perspective view,
(2) is a cross-sectional view taken along the line A-A' in (1)

[Figure 3] Partially cutaway perspective view showing the bottom plate temporarily attached to the body

[Figure 4] Also a vertical cross-sectional view

[Figure 5] Vertical cross-sectional view showing the completed container with the bottom plate glued to the body.

[Fig. 6] A partially cutaway perspective view showing the container body in Example 2 of the present invention.

[Figure 7] Similarly shows the bottom plate, (1) is its perspective view;
(2) is a sectional view taken along the line B-B' in (1)

[Figure 8] Partially cutaway perspective view showing the bottom plate temporarily attached to the body

[Figure 9] A partially cutaway perspective view showing the completed container with the bottom plate glued to the body.

[Explanation of symbols]

1 Torso 2 Bottom plate 3 Body peripheral wall 4 Partition plate 5 End face of peripheral wall 6 Partition plate end face 7 Inner surface 8 Outer surface 9 Groove 10 Bottom of groove 9 11 Hole 12 Projecting edge 12' End face of protruding edge 12

Claims (3)

[Scope of utility model registration request] 1. A body 1 is divided into a plurality of chambers in the axial direction of the container by a partition plate 4, and a body peripheral wall 3 and each end face 5 of the partition plate 4,
In the adhesive structure of the bottom plate of a multi-chamber container in which the bottom plate 2 is glued to the bottom plate 6 and each chamber is separated and sealed, the end face 5 of the body peripheral wall is attached to the bottom plate 2.
The end of the partition plate 4 passes through the hole 11 provided in the bottom plate, and the end face 6 of the partition plate 4 is attached to the outer surface 8 of the bottom plate.
An adhesive structure for the bottom plate of a multi-chamber container, characterized by being adhesively bonded to the bottom plate. 2. An end surface 5 of the body peripheral wall is adhered to a bottom surface 10 of a groove 9 provided on the peripheral edge of the bottom plate for fitting the peripheral wall end, and the end surface 6 of the partition plate defines a hole 11 in the bottom plate. The bottom plate bonding structure for a multi-chamber container according to claim 1, wherein the bottom plate bonding structure is bonded to the end surface 12' of the protruding edge 12. [Claim 3] A protruding edge 12 defining a hole 11 in the bottom plate.
The bottom plate bonding structure for a multi-chamber container according to claim 1 or 2, wherein the end face 12' of the partition plate is located further inside the body than the end face 6 of the partition plate.