JP6965666B2 - Swing container - Google Patents

Description

The present invention relates to a drawing container and a cap member for a drawing container.

Patent Document 1 discloses a seasoning container in which the inside of a container body is divided by a partition plate and salt and pepper are stored in each. One opening for swinging is formed in the cylindrical part (wall surface part) of the rotating lid portion, and the cylindrical portion (wall surface portion) of the container body to which the rotating lid portion is attached has a perforated portion for salt ejection and pepper ejection. A perforated portion is formed. By rotating the rotating lid, the opening for swinging the rotating lid is only the perforated part for salt shaking, only the perforated part for pouring pepper, and both the perforated part for salt shaking and the perforated part for shaking pepper. Communicate with each other. Salt only, pepper only, and a blend of salt and pepper can be sprinkled out of the seasoning container.

Utility Model Registration No. 3054408 Gazette

Not limited to salt and pepper, other seasonings, spices, and seasoning side dishes (sprinkles) generally dislike moisture. In the seasoning container of Patent Document 1, in order to allow the rotating lid portion to rotate, the rotating lid portion and the container body cannot be firmly fixed (tightened), and there is only a small amount between them. It is necessary to secure a sufficient gap. Therefore, even if the perforated portion of the container body is closed by the rotating lid portion, the container is opened from the swing opening opened in the rotating lid portion and the connecting portion between the rotating lid portion and the container body. Moisture invades the inside of the main body. It is difficult to ensure the airtightness inside the container body of the seasoning container of Patent Document 1, and when trying to maintain the dry state of the contents, a desiccant (silica gel) is put in the container to dehumidify the inside of the container. Is common.

An object of the present invention is to provide a highly airtight delivery container.

The drawing container according to the present invention has a bottomed container body having a mouth opening upward, in which the internal space is partitioned into a plurality of content storage chambers by a partition that partitions the internal space in the radial direction, and the container body. It is provided with a cap member having a top surface portion and a wall surface portion, which is attached to the mouth portion of the container and surrounds the mouth portion of the container body. A plurality of content discharge holes communicating with each of the plurality of content storage chambers of the container body are formed on the top surface portion of the cap member, and each of the plurality of content discharge holes is formed on the surface of the top surface portion. A lid material is provided to open and close the. Further, on the back surface of the top surface portion, an annular protrusion extending in the same direction as the wall surface portion of the cap member is formed, and when the cap member is attached to the mouth portion of the container body, the mouth portion of the container body is formed. At least one of the inner and outer surfaces of the above is in contact with at least one of the annular protrusion and the wall surface portion of the cap member over the entire circumference.

The present invention also provides a cap member constituting the drawing container. The cap member according to the present invention includes a top surface portion and a wall surface portion which are attached to the mouth portion of the container body provided with a plurality of content storage chambers and surround the mouth portion of the container body, and the cap member of the cap member. A plurality of content discharge holes communicating with each of the plurality of content storage chambers of the container body are formed on the top surface, and a lid for opening and closing each of the plurality of content discharge holes is formed on the surface of the top surface. A material is provided, and an annular protrusion extending in the same direction as the wall surface portion of the cap member is formed on the back surface of the top surface portion, and when the cap member is attached to the mouth portion of the container body, the material is provided. The annular protrusion is formed at a position where at least one of the inner and outer surfaces of the mouth portion of the container body is in contact with at least one of the annular protrusion and the wall surface portion of the cap member over the entire circumference. It is a thing.

According to the present invention, when the cap member is attached to the mouth portion of the container body, the outer surface of the mouth portion is in contact with the inner surface of the mouth portion of the container body with the annular protrusion formed on the back surface of the top surface portion of the cap member over the entire circumference. Since the wall surface of the cap member is in contact with the entire circumference, or the annular protrusion and the wall surface of the cap member are in contact with each of the inner and outer surfaces of the mouth portion, the contents storage chamber of the container body can be shielded from the outside air. The airtightness of the contents storage room of the main body is ensured.

Of course, preferably, both the inner and outer surfaces of the mouth portion of the container body are in contact with the annular protrusion on the inner surface and the wall surface portion of the cap member on the outer surface over the entire circumference. It is possible to ensure high airtightness of the contents storage chamber of the container body.

In one embodiment, when the cap member is attached to the mouth portion of the container body, at least one of the inner and outer surfaces of the mouth portion of the container body comes into surface contact with at least one of the annular protrusion and the wall surface portion. ing. Airtightness can be improved by making wide contact between the annular protrusion or the wall surface and the mouth of the container body.

Preferably, a notch in which the annular protrusion fits when the cap member is attached to the mouth portion of the container body is formed at the upper end portion of the partition. Even if the partition is provided so as to be flush with the opening of the mouth of the container body, the partition and the annular protrusion do not interfere with each other when the cap member is attached to the mouth of the container body, and the top surface of the cap member The back surface of the partition can be brought into close contact with or close to the upper end surface of the partition in a range excluding the notch. It is possible to prevent the contents from moving beyond the above partition inside the container body.

Even if the container body and the cap member are connected (fitted and fixed) to each other by screw connection, they are connected (fitted and fixed) to each other by tapping (pushing the cap material toward the mouth of the container body). ) May be used. In the case of screw connection, threads that are screw-bonded to each other are formed on the outer peripheral surface of the mouth portion of the container body and the inner peripheral surface of the wall surface portion of the cap member. In the case of plugging, when the cap member is pushed toward the mouth of the container body on the outer peripheral surface of the mouth portion of the container body and the inner peripheral surface of the wall surface portion of the cap member. Protrusions that engage with each other are formed.

In one embodiment, at least one set of stopper ribs is formed on the back surface of the top portion of the cap member so as to sandwich the upper end portion of the partition in the width direction when the cap member is attached to the mouth portion of the container body. Has been done. The relative position between the cap member and the container body when the cap member is attached to the container body can be made constant, and a plurality of content discharge holes formed on the top surface of the cap member and a plurality of contents of the container body. The storage room can be communicated accurately.

Preferably, a set of stopper ribs includes a short and short first stopper rib and a tall and long second stopper rib in the direction of rotation of the cap member. The first stopper rib is formed on the front side, and the second stopper rib is formed on the back side. The closing end of the cap member can be confirmed by the feeling that the upper end of the partition gets over the short first stopper rib and the sound when it gets over, and the second stopper. The closing position is fixed with ribs, and the cap member is positioned at a position where the plurality of content discharge holes formed on the top surface of the cap member and the plurality of content storage chambers of the container body accurately communicate with each other. You can check.

It is a perspective view of a drawing container. It is a perspective view of the container main body which comprises a drawing container. It is a top view of the container body. It is sectional drawing of the drawing container along the line IV-IV of FIG. It is a perspective view which looked at the cap member which constitutes a drawing container from the back side. It is a perspective view which shows the state of the back side of a cap member when a cap member is attached to the mouth part of a container body by breaking from the front side. It is a top view of the container body of the modification. It is a top view of the container body of another modification. Another embodiment is shown, and is a cross-sectional view of a drawing container corresponding to FIG. It is a graph which shows the result of the airtightness comparison test of the conventional container and the drawing container of this invention.

FIG. 1 is a perspective view of a drawing container. FIG. 2 is a perspective view of the container body constituting the drawing container. FIG. 3 shows a plan view of the container body, and FIG. 4 shows a cross-sectional view of the drawing container along the IV-IV line of FIG. FIG. 5 is a perspective view of the cap member constituting the drawing container as viewed from the back side.

The drawing container 1 includes a cap member 10 and a container body 20.

The container body 20 includes a cylindrical body portion 21 and a circular bottom portion 22 that closes the bottom surface of the body portion 21, and is a bottomed container that opens upward. The upper range of the opening of the container body 20 is hereinafter referred to as the mouth portion of the container body 20. The cylindrical body 21 has a slightly larger diameter toward the mouth. Of course, the entire body portion 21 may be formed to have the same diameter. Further, the opening edge portion 26 of the mouth portion of the container body 20 is formed to be slightly thick.

A partition plate 23 is formed inside the container body 20, and the internal space of the container body 20 is partitioned by the partition plate 23 into two storage chambers 51 and 52 having substantially the same capacity. The partition plate 23 can be provided up to a height flush with the opening of the mouth of the container body 20. Further, a spiral thread 25 is formed on the outer peripheral surface of the mouth portion of the container body 20, and an annular neck ring 24 is further formed on the lower side of the thread 25. The entire container body 20, including the body 21, bottom 22, divider 23, neck ring 24 and thread 25, is integrally made of transparent or translucent synthetic resin (eg polypropylene, polyethylene).

With reference to FIG. 2, the partition plate 23 that partitions the inside of the container body 20 is a flat plate having a rectangular outer shape, and both upper corners thereof are cut out (the notch portion is indicated by reference numeral 23A). The details of the notch portion 23A will be described later.

The cap member 10 includes a circular top surface portion 11 and a cylindrical wall surface portion 12 connected to the outer peripheral edge of the top surface portion 11. The cap member 10 is also made of synthetic resin (polyethylene, polyethylene, etc.).

With reference to FIGS. 4 and 5, a spiral thread 17 is formed on the inner peripheral surface of the wall surface portion 12 of the cap member 10. The cap member 10 and the container body 20 can be detached from each other by the screw thread 25 formed on the outer peripheral surface of the mouth portion of the container body 20 and the screw thread 17 formed on the inner peripheral surface of the wall surface portion 12 of the cap member 10. Is screwed to.

With reference to FIG. 1, the circular top surface portion 11 of the cap member 10 has circular swing holes 11a and 11b in each range within the semicircle when the top surface portion 11 is divided into two semicircles. It is open. With reference to FIG. 4, when the cap member 10 is firmly screwed to the mouth of the container body 20, one swing hole 11a and one storage chamber 52 of the container body 20 communicate with each other, and the other swing hole 11b. And the other storage chamber 51 of the container body 20 communicate with each other.

With reference to FIG. 1, the diameter of the swing hole 11b is smaller than the diameter of the swing hole 11a. Further, the number of swing holes 11a is one, while the number of swing holes 11b is three. Granules or powders having a relatively large particle size are stored in the storage chamber 52 communicating with the large-diameter swing hole 11a, and particles having a relatively small particle size are stored in the storage chamber 51 communicating with the small-diameter swing hole 11b. Contains body or powder. The shape, size, and number of the swing holes 11a and 11b can be arbitrarily designed.

A slight recess is formed in the peripheral range of the surface of the top surface portion 11 surrounding the swing hole 11a and the swing hole 11b, and the opening / closing lids 13 and 14 for closing the swing holes 11a and 11b are formed in this recess, respectively. Can be stored. An annular (low-height cylindrical) plug tube 13a is formed on the inner surface of the opening / closing lid 13 so as to project. The diameter of the plug tube 13a and the diameter of the swing hole 11a are almost equal, and when the opening / closing lid 13 is closed, the opening / closing lid 13 fits snugly in the recess formed on the surface of the top surface, and the plug tube 13a is the swing hole. It fits snugly on 11a. The same applies to the opening / closing lid 14, in which three plug cylinders (not visible in FIG. 1) are projected on the inner surface thereof, and when the opening / closing lid 14 is closed, a recess (recess) formed on the surface of the top surface portion is formed. The opening / closing lid 14 fits snugly into the lid, and each of the three plug cylinders fits snugly into each of the three swing holes 11b.

Picking pieces 13b and 14b that project shortly outward are formed on the peripheral edges of the tips of the opening and closing lids 13 and 14. The opening / closing lids 13 and 14 can be opened by putting a finger or a nail on the picked pieces 13b and 14b and flipping up the opening / closing lids 13 and 14 upward.

The ends of the opening / closing lids 13 and 14 (opposite to the picking pieces 13b and 14b) can be connected to the top surface 11 by, for example, a thin hinge. Of course, the opening / closing lids 13 and 14 may be removable from the top surface portion 11 without being connected to the top surface portion 11.

With reference to FIGS. 4 and 5, a short cylindrical annular protrusion extending on the back surface of the top surface portion 11 of the cap member 10 in the same direction as the wall surface portion 12 at a distance from the wall surface portion 12. (Inner ring) 15 is formed. The distance between the wall surface portion 12 and the annular protrusion 15 is approximately equal to the wall thickness of the mouth portion of the container body 20. When the cap member 10 is firmly screwed to the container body 20, the mouth portion (opening edge portion 26) of the container body 20 is sandwiched between the wall surface portion 12 of the cap member 10 and the annular protrusion 15 without a gap. High airtightness of the storage compartments 51 and 52 is ensured.

The inner surface of the mouth portion (opening edge portion 26) of the container body 20 and the annular protrusion 15 are in surface contact with each other over the entire circumference. The outer surface of the mouth portion (opening edge portion 26) of the container body 20 and the wall surface portion 12 of the cap member 10 also come into surface contact with each other over the entire circumference. Since the locations for blocking the outside air are provided in double, the airtightness of the drawing container 1 becomes very high.

In order to prevent the annular protrusion 15 extending downward from the back surface of the top surface portion 11 of the cap member 10 and the partition plate 23 partitioning the inside of the container body 20 from interfering with each other when the cap member 10 is screwed to the container body 20. As described above, notches 23A are formed at both upper corners of the partition plate 23 that partitions the inside of the container body 20.

FIG. 6 shows an enlarged view of the back side of the cap member 10 when the cap member 10 is attached to the mouth of the container body 20 by breaking from the front side. When the cap member 10 is screwed to the container body 20, the tip of the annular protrusion 15 of the cap member 10 fits (enters) into the notches 23A formed at both upper corners of the partition plate 23, so that the annular protrusion 15 partitions. The cap member 10 is attached to the container body 20 until the upper end surface of the mouth portion of the container body 20 is close to the back surface of the top surface portion 11 of the container body 10 without hitting the plate 23 and interfering with the screw connection of the cap member 10. Can be screwed tightly. When the cap member 10 is firmly screwed to the container body 20, the upper end surface of the partition plate 23 of the container body 20 excluding the notch 23A also approaches the back surface of the top surface portion 11 of the cap member 10 (FIG. 4). Inside the container body 20, the contents do not move from one storage chamber 51, 52 to the other storage chamber 52, 51 over the partition plate 23.

The notch width (horizontal posture surface length) of the notch 23A of the partition plate 23 is such that a gap of about 0.01 mm to 0.50 mm is formed with the notch 23A when the cap member 10 is screwed to the container body 20. It should be secured between the annular protrusion 15 and the ring protrusion 15. The gap can be arbitrarily determined depending on the size of the contents. Similarly, regarding the notch height (length of the vertical posture surface) of the notch 23A, when the cap member 10 is firmly screwed to the container body 20, the tip surface of the annular protrusion 15 and the notch 23A It is good to secure a gap of about 0.01 mm to 0.10 mm. When the annular protrusion 15 and the notch 23A come into contact with each other and the cap member 10 is screwed to the container body 20, the cap member 10 is prevented from becoming difficult to turn. Further, even at the notch 23A, the contents are prevented from moving over the partition plate 23.

With reference to FIGS. 4, 5 and 6, there are two sets of stopper ribs 18 and 19 having different heights and sizes near the annular protrusion 15 on the back surface of the top surface portion 11 of the cap member 10. It is provided in a place. The two sets of stopper ribs 18 and 19 are located at both ends on a straight line separating the two semicircular regions in which the above-mentioned swing holes 11a and 11b are formed.

The stopper ribs 18 and 19 are both plate-shaped with a substantially rectangular cross section, and are a set of a short and short stopper rib 18 and a tall and long stopper rib 19. An interval (which may be slightly wider) approximately equal to the wall thickness of the partition plate 23 is provided between these two stopper ribs 18 and 19, and the cap member 10 is firmly screwed to the container body 20. When joined, the upper end surface of the partition plate 23 is formed so as to face the longitudinal direction in the same direction as the extending direction.

With reference to the rotation direction of the cap member 10 when the cap member 10 is screwed to the container body 20, the short stopper rib 18 is located on the front side of the rotation direction, and the back side of the rotation direction is on the back side. High stopper rib 19 is located. When the cap member 10 is rotated with respect to the container body 20, the distance between the container body 20 and the cap member 10 gradually narrows, and the distance between the upper end surface of the partition plate 23 and the top surface portion 11 of the cap member 10 gradually approaches. Immediately before the cap member 10 is completely screwed, the upper end portion of the partition plate 23 slightly contacts the tip portion of the short stopper rib 18, and then overcomes the short stopper rib 18 to be tall. It hits the stopper rib 19 and the screw connection of the cap member 10 stops there (end of closing). The closing end of the cap member 10 can be confirmed by the feeling that the upper end portion of the partition plate 23 is transmitted to the hand when it gets over the short stopper rib 18, and the click sound generated when it gets over it. Further, the swing holes 11a and 11b formed in the top surface portion 11 are accurately communicated with the two storage chambers 52 and 51 of the container body 20, respectively, that is, the cap member 10 and the container body 20 are connected so as to be accurately communicated with each other. The relative position in the rotation direction can be determined.

In the above-described embodiment, the internal space of the container body 20 is divided into two storage chambers 51 and 52 by the partition plate 23. By forming a plurality of partition plates extending radially from the center of the container body 20, three or four storage chambers can be formed. FIG. 7 shows the container body 20A whose internal space is divided into three storage chambers 51, 52, and 53 by three partition plates 23a, 23b, and 23c extending from the center of the container body 20 at equal angular intervals in the radial direction. Shown. FIG. 8 shows a container body 20B whose internal space is divided into four storage chambers 51, 52, 53, 54 by four partition plates 23a, 23b, 23c, 23d extending in the radial direction at equal angular intervals. The number of partition plates (number of storage rooms) can be arbitrarily designed.

Needless to say, the number and position of the swing holes and the opening / closing lids formed in the cap member 10 and the number and positions of the sets of the stopper ribs 18 and 19 are matched with the number and positions of the storage chambers formed in the container body. stomach. For example, in the cap member to be combined with the container body 20A shown in FIG. 7, swing holes are formed in each of the ranges in which the top surface portion of the cap member is divided into three equal parts at equal angle intervals, and these three swing holes are opened and closed. Three opening / closing lids are provided on the surface of the top surface. The sets of stopper ribs 18 and 19 formed on the back surface of the top surface portion are formed at three places at equal angle intervals according to the three partition plates 23a, 23b and 23c. The shape, number, size, and position of the swing holes can be designed arbitrarily.

FIG. 9 shows another embodiment, and shows a cross-sectional view of the drawing container 2 corresponding to FIG.

The shaker container 2 is different from the above-mentioned shaker container 1 in that the cap member 10A is attached to the container body 20C by a plug connection instead of a screw connection. By engaging the protrusion 27 formed on a part of the outer peripheral surface of the mouth portion of the container body 20C with the protrusion 16 formed on a part of the inner peripheral surface of the wall surface portion 12 of the cap member 10A, The cap member 10A is firmly attached to the mouth of the container body 20C.

FIG. 10 shows the results of the airtightness comparison test between the conventional container and the above-mentioned drawing container 1. The conventional container has a structure equivalent to that of the seasoning container disclosed in Utility Model Registration No. 3054408 described in the background technology, and has one opening for swinging on the wall surface of the rotating lid. In addition, the one in which openings of different sizes are formed at three places on the wall surface of the container body to which the rotating lid is attached is adopted.

The airtightness comparison test was conducted as follows.

(1) Put 20 g of calcium chloride in a container and attach a cap member (rotating lid).
(2) Measure the total weight of the container and calcium chloride using an electronic balance, and use this as the initial weight.
(3) After weighing, the container is stored in a constant temperature and humidity chamber having a temperature of 45 ° C. and a humidity of 90%.
(4) The total weight is measured every 24 hours, and the amount of weight change (g) from the initial weight is calculated.

The amount of weight change means the amount of moisture absorbed by calcium chloride. That is, when the amount of change in weight is large, it means that the airtightness (sealing) of the container is low and a large amount of moisture has entered the inside of the container. On the contrary, when the amount of weight change is small, it means that the airtightness of the container is high and the moisture entering the inside of the container is small.

For conventional containers, the water vapor permeability due to the characteristics of the material that forms the container is canceled, and the amount of moisture entering through the joint between the rotating lid and the container body and the swing opening of the rotating lid is correct. For measurement, prepare one with aluminum tape attached to the joint between the rotating lid and the container body and the opening for swinging out of the rotating lid, and one without aluminum tape. The difference in the amount of change in the conventional container sealed with aluminum tape is calculated from the above amount of change in the conventional container without aluminum tape, and this is used as the amount of change in the conventional container in the comparative test.

As is clear from FIG. 10, it was confirmed that the amount of change in weight of the drawing container 1 was significantly smaller than that of the conventional container, and the airtightness was significantly improved. The shaking container 1 has a high airtightness to the extent that it is not always necessary to use a desiccant for keeping the inside of the container in a dry state.

1, 2 squeeze container
10,10A Cap member
11 Top surface
12 Wall surface
13, 14 Opening and closing lid
11a, 11b swing holes
15 Ring protrusion
16, 27 protrusions
17, 25 threads
18, 19 Stopper rib
20, 20A, 20B, 20C Container body
21 Torso
23, 23a, 23b, 23c, 23d Partition plate
23A notch
51, 52, 53, 54 Storage room

Claims (7)

A bottomed container body having a mouth opening upward, in which the internal space is partitioned into a plurality of content storage chambers by a partition that partitions the internal space in the radial direction.
A cap member having a top surface portion and a wall surface portion, which is attached to the mouth portion of the container body and surrounds the mouth portion of the container body, is provided.
A plurality of content discharge holes communicating with each of the plurality of content storage chambers of the container body are formed on the top surface of the cap member.
On the surface of the top surface, a lid material that opens and closes each of the plurality of content discharge holes is provided.
On the back surface of the top surface portion, an annular protrusion extending in the same direction as the wall surface portion of the cap member is formed.
When the cap member is attached to the mouth portion of the container body, at least one of the inner and outer surfaces of the mouth portion of the container body is fully attached to at least one of the annular protrusion and the wall surface portion of the cap member. It touches all around and
A notch in which the tip of the annular protrusion fits when the cap member is attached to the mouth of the container body is formed at the upper end of the partition.
Swing container. A bottomed container body having a mouth opening upward, in which the internal space is partitioned into a plurality of content storage chambers by a partition that partitions the internal space in the radial direction.
A cap member having a top surface portion and a wall surface portion, which is attached to the mouth portion of the container body and surrounds the mouth portion of the container body, is provided.
A plurality of content discharge holes communicating with each of the plurality of content storage chambers of the container body are formed on the top surface of the cap member.
On the surface of the top surface, a lid material that opens and closes each of the plurality of content discharge holes is provided.
On the back surface of the top surface portion, an annular protrusion extending in the same direction as the wall surface portion of the cap member is formed.
When the cap member is attached to the mouth portion of the container body, at least one of the inner and outer surfaces of the mouth portion of the container body is fully attached to at least one of the annular protrusion and the wall surface portion of the cap member. It touches all around and
Threads that are screwed together are formed on the outer peripheral surface of the mouth portion of the container body and the inner peripheral surface of the wall surface portion of the cap member.
Swing container. A bottomed container body having a mouth opening upward, in which the internal space is partitioned into a plurality of content storage chambers by a partition that partitions the internal space in the radial direction.
A cap member having a top surface portion and a wall surface portion, which is attached to the mouth portion of the container body and surrounds the mouth portion of the container body, is provided.
A plurality of content discharge holes communicating with each of the plurality of content storage chambers of the container body are formed on the top surface of the cap member.
On the surface of the top surface, a lid material that opens and closes each of the plurality of content discharge holes is provided.
On the back surface of the top surface portion, an annular protrusion extending in the same direction as the wall surface portion of the cap member is formed.
When the cap member is attached to the mouth portion of the container body, at least one of the inner and outer surfaces of the mouth portion of the container body is fully attached to at least one of the annular protrusion and the wall surface portion of the cap member. It touches all around and
On the outer peripheral surface of the mouth portion of the container body and the inner peripheral surface of the wall surface portion of the cap member, protrusions that engage with each other when the cap member is pushed toward the mouth portion of the container body are formed. ing,
Swing container. When the cap member is attached to the mouth portion of the container body, both the inner and outer surfaces of the mouth portion of the container body are in contact with the annular protrusion on the inner surface and the wall surface portion of the cap member on the outer surface over the entire circumference. ing,
The delivery container according to any one of claims 1 to 3. When the cap member is attached to the mouth of the container body, at least one of the inner and outer surfaces of the mouth of the container body is in surface contact with at least one of the annular protrusion and the wall surface.
The delivery container according to any one of claims 1 to 4. At least one set of stopper ribs is formed on the back surface of the top portion of the cap member so as to sandwich the upper end portion of the partition in the width direction when the cap member is attached to the container body.
The delivery container according to any one of claims 1 to 3. A set of stopper ribs includes a short and short first stopper rib and a tall and long second stopper rib.
The first stopper rib is formed on the front side of the cap member in the rotation direction, and the second stopper rib is formed on the rear side of the cap member.
The drawing container according to claim 6.

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