JP3875296B2 - container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soft, semi-rigid or rigid container suitable for filling a seasoning having a viscosity such as mayonnaise, ketchup, or cooked sauce such as tartar sauce, and particularly at the time of discharging or discharging the contents. The present invention relates to a container that can be compressed and deformed when completed.
[0002]
[Prior art]
Containers filled with various seasonings or beverages are made of various synthetic resin materials, but some are made to be compressible and deformable so as not to be bulky when the empty containers are discarded or collected.
[0003]
FIG. 7 is a side view showing a conventional compressible and deformable container.
This container is composed of a cylindrical body 1, a bottom 2, and a tip 3, and a discharge port 3 a is opened at the tip of the tip 3. A cap can be attached to the protruding port 3a. Convex portions 1 a and concave portions 1 b are alternately formed on the circumferential surface of the body portion 1 in the axial direction of the body portion 1. Both the convex portion 1a and the concave portion 1b are continuously formed in multiple lines along a concentric circular locus.
In this container, the body portion 1 can be compressed and deformed in the axial direction by deforming the convex portion 1a and the concave portion 1b so as to be folded in an empty state in which the contents are discharged.
[0004]
[Problems to be solved by the invention]
However, in the container shown in FIG. 7, the top part (a) of the convex part 1a formed in the trunk | drum 1 is a shape which has a corner | angular. Therefore, when the contents are filled in the container, there is a defect that bubbles tend to remain at the corners of the top (a) on the inner surface of the container. In particular, when the contents are slightly viscous, such as cooked sauces such as ketchup, mayonnaise, or tartar sauce, the bubbles are larger than when the contents are a liquid such as a beverage. Tends to remain. When the bubbles remain, the seasoning or the like is likely to be discolored or oxidized.
[0005]
In a business container filled with the seasoning or cooked sauce, the container is loaded into an extrusion tool called a dispenser, and the container is gradually pushed from the rear end surface 2a of the bottom part 2. As a result, the necessary amount of content can be discharged from the discharge port 3a, and the body 1 can be compressed simultaneously with this protrusion. However, since the convex part 1a is formed concentrically with respect to the central axis of the trunk | drum 1, in the container shown in FIG. 7, the content tends to remain inside the corner | angular part of the said top part (a). Therefore, there arises a problem that the contents cannot be completely discharged from the discharge port 3a to the end.
[0006]
Moreover, since each convex part 1a and the recessed part 1b become the mutually independent circular shape, when pushing the rear-end surface 2a of a container gradually, each convex part 1a and the recessed part 1b are folded depending on a place, In addition, the folding deformation of each convex portion 1a and concave portion 1b tends to be irregular, such as not being folded depending on the location. Therefore, when the rear end surface 2a is pushed by the dispenser and the body portion 1 is contracted, the adjacent convex portions 1a and the concave portions 1b are not necessarily completely folded in order, and the rear end surface 2a is limited to a certain size. When pressed, the amount of content discharged from the discharge port 3a may not be constant. For example, in some cases, only one of the convex portions 1a and the concave portions 1b may be completely folded, and the convex portions 1a and the concave portions 1b in other portions may not be deformed at all, and in some cases, all the convex portions 1a. And the recess 1b may be deformed little by little evenly. Thus, even if the body part 1 contracts in the axial direction by the same dimension, the change in the internal volume at this time is not always the same, and therefore, the quantitativeness of the discharged contents is lacking.
[0007]
The present invention solves the above-described conventional problems, and when filling a viscous content, it is easy to discharge bubbles remaining on the inner surface of the convex portion in the direction of the discharge port, and compresses and deforms the content. An object of the present invention is to provide a container in which the contents are less likely to remain inside the convex portion when discharging.
[0008]
In addition, the present invention makes it easier for the convex portion and the concave portion on the circumferential surface of the trunk portion to be folded (compressed) along the axial direction of the trunk portion when the trunk portion is compressed, and the contents are quantitatively determined. An object of the present invention is to provide a container that can be easily discharged.
[0009]
[Means for Solving the Problems]
The present invention is a container in which a cylindrical body portion and a tip portion having a discharge port at the tip are integrally formed ,
Wherein the circumferential surface of the body portion, and a plurality of protrusions, and the recesses located between adjacent pairs of the projections are formed, the convex portion is orbiting and and a plurality of times around the central axis of the barrel Formed along a plurality of parallel spiral trajectories ,
When the inside of all the convex portions is communicated with the inner surface of the front portion at the boundary portion between the body portion and the front portion, the bubbles in the convex portion are discharged into the front portion when filling the contents. Is possible,
The circumferential surface of the body portion can be compressed in the central axis direction by deformation of the concave portion and the convex portion.
[0010]
Moreover, in the above, it is preferable that the top inner surface of the convex portion is communicated with the inner surface of the front portion of the trunk portion in substantially the same plane at the end of the spiral locus on the front portion side.
[0011]
In the container according to the present invention, the body is formed with a concave portion and a convex portion along a plurality of spiral trajectories. Therefore, when the contents are filled, the bubbles remaining on the inner surface of the convex portion are likely to move to the front side along the spiral trajectory, and thus are easily evacuated from the discharge port. Further, when the contents are discharged from the discharge port by gradually compressing the body portion in the axial direction, the content inside the convex portion is gradually discharged in the discharge port direction along the spiral trajectory. Therefore, when the convex part and the concave part are folded, the contents are less likely to remain inside the convex part.
[0012]
In addition, when compressing the body part in a state where the convex part and the concave part are folded at a certain position (for example, the end), the folding continuously proceeds to the convex part and the concave part along the spiral trajectory. I will do it. Therefore, it becomes easy to advance the compression of the body part along the axial direction of the body part, and the contents discharged from the discharge port can be quantified when the body part is compressed by a certain size. Therefore, it is suitable for what discharges the contents quantitatively with a business-use dispenser. Furthermore, what has the recessed part and convex part which follow the spiral locus | trajectory of several strips will also be excellent also in the point of independence.
[0013]
Moreover, since the convex part and the recessed part are formed along the spiral locus | trajectory of multiple strip | lines (for example, three strips), as shown in FIG. 1, many recessed parts and convex parts are formed along the axial direction of a trunk | drum. Nevertheless, the inclination angle α of the convex portion and the concave portion with respect to the plane orthogonal to the central axis can be increased. By increasing the angle α, it becomes easy to move bubbles or contents inside the convex portion toward the discharge port along the spiral.
[0014]
In addition, when the convex portion and the concave portion are formed by a plurality of spiral trajectories, the number and the number of concave portions arranged in the axial direction at all positions on the peripheral surface of the trunk portion are increased even when the angle α is increased as described above. The number of parts can be increased, and therefore, as shown in FIG. 2, when the concave and convex parts are folded, they can be easily compressed in a cylindrical shape, and the total length during compression can be shortened.
[0015]
Further, in the case of using a plurality of spiral trajectories, as shown in FIGS. 1 and 4, the top (1) of the convex portion at the end of the front side of the spiral trajectory (1) and the inner surface (2) of the front portion of the container The communication location can be formed at a plurality of locations. For example, in the case of three spiral trajectories, the number of convex tops {circle around (1)} communicating with the inner surface {circle around (2)} of the tip of the container is three around the central axis O at intervals of 120 degrees. When the body part is compressed as described above, the contents near the inner wall of the body part move in the direction of the discharge port along the inner surface of the spiral convex part, and from the top part (1) to the inner surface of the front part. Although it goes out to (2), when there are a plurality of spirals, the number of outlets shown in (1) increases, and the contents near the inner wall can be easily discharged uniformly to the inner surface (2) of the tip. .
[0016]
Further, if the inner surface of the top portion (1) of the convex portion at the end of the front portion of the spiral locus and the inner surface (2) of the tip portion of the container are substantially flush with each other, along the spiral locus of the inner surface of the convex portion. The proceeding contents are likely to advance to the inner surface (2) at the boundary between the body part and the tip part, and the contents are easily discharged.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side view showing an embodiment of a container according to the present invention, FIG. 2 is a side view showing a state in which the body portion of the container is completely compressed, and FIG. 3 is a method for quantitatively extruding the contents using a dispenser. It is a side view which shows the state which exists. FIG. 4 is a partially enlarged side view showing a convex portion and a concave portion at the front end of the spiral locus, and FIG. 5 is a partial perspective view of FIG.
[0018]
The container shown in FIG. 1 is filled with a seasoning or processed food having viscosity (viscous) such as cooked sauce or soup such as mayonnaise, ketchup or tartar sauce. In the case of containers soft, LDPE an outer layer as a synthetic resin material forming the container to the inner layer (low density polyethylene) / adhesive layer / gas barrier Li Ya layer as EVOH (ethylene vinyl alcohol copolymer) / adhesive layer / Li The thing of the multilayered structure by which the grind layer / adhesion layer / LDPE was laminated | stacked can be illustrated. The adhesive layer is, for example, acid anhydride-modified PE. The regrind layer is included as necessary.
[0019]
In the case of a semi-rigid container, for example, PP (polypropylene) is used instead of the LDPE of the outer layer and the inner layer in the above example, or PP contains VLDPE (linear ultra-low density polyethylene) Etc. are used as resin materials. The adhesive layer in this case is acid anhydride-modified PP or the like. Moreover, you may form with a single layer resin.
[0020]
Moreover, the thickness of resin is 50-500 micrometers in the trunk | drum 11 shown in FIG. 1, Preferably it is 100-300 micrometers. When a gas barrier layer is required, the thickness of the EVOH layer is appropriately set according to the required barrier level.
The present invention is suitable for such a soft or semi-rigid container, but can also be applied to a rigid container such as a PET single-layer bottle.
[0021]
The container shown in FIG. 1 has a cylindrical body 11, a bottom 12, and a tip 13, and a discharge port 13 a is opened at a tip head 13 b of the tip 13. After the contents are filled, a sealing material is attached to the discharge port 13a, and a male screw is provided on the tip head portion 13b, and a cap is screwed to the tip head portion 13b.
Convex portions 11 a and concave portions 11 b are alternately and continuously formed in the direction of the central axis O on the peripheral surface of the body portion 11. As shown in an enlarged view in FIG. 4, the convex portion 11a has a substantially triangular cross section with the top portion being a corner, and the concave portion 11b has a triangular shape with the bottom portion being a corner portion. The convex portion 11a and the concave portion 11b are all thick. Is uniform. Therefore, the inner peripheral surface (inner wall surface) of the trunk portion 11 has a concave portion and a convex portion adjacent to each other in a triangular shape in the same manner as the outer shape is shown in FIG.
[0022]
As shown in FIG. 4, the angle formed between the lower slope (c) in the recess 11b and the plane orthogonal to the central axis O is, for example, 59 degrees, and the upper slope (d) and the orthogonal plane are Is 45 degrees, for example, and dimensions a = 3 mm and b = 5 mm. Therefore, the area of the slope (c) is larger than the area of the slope (d). Therefore, when the body part 11 is compressed in the axial direction, as shown in FIG. 2, the slope (d) below the convex part 11a becomes the inner surface side of the slope (c) above the convex part 11a. The convex part 11a and the concave part 11b are folded so that it may enter.
[0023]
As shown in FIG. 1, in this container, convex portions 11 a and concave portions 11 b are formed along three spiral trajectories around the central axis O of the body portion 11. That is, the convex portion of the locus A, the convex portion of the locus B, and the convex portion of the locus C shown in FIG. 1 are parallel to each other, and are spirals that advance in the axial direction at a constant pitch around the central axis O. It has become. The three spiral trajectories indicated by A1, B1, and C1 reach the positions of A2, B2, and C2 once around the central axis. In FIG. 1, the convex part 11a and the recessed part 11b have a structure wound 6 times along the three spiral trajectories A, B, and C. Therefore, the number of the convex portions 11a and the concave portions 11b arranged in the axial direction is 3 × 6 = 18 at a position on the circumferential surface of the trunk portion.
[0024]
As described above, since the number of the concave portions 11b and the convex portions 11a arranged in the axial direction is large at a position on the peripheral surface, when the concave portions 11b and the convex portions 11a are all folded, the container has a full length as shown in FIG. The cylinder shape can be maintained even in a contracted state.
[0025]
However, in each spiral locus A, B, or C, the number of turns of the spiral with respect to the plane orthogonal to the central axis O is considerably large because the number of turns is six with respect to the entire axial length of the body portion 11. In the example of FIG. 1, α is about 5 to 8 degrees. Since the inclination angle α is large, the contents located on the inner surface of the convex portion 11a easily travel toward the front portion 13 when the body portion 11 is compressed. Further, when the contents are filled, bubbles inside the convex portion 11a can easily escape to the front portion 13 side along the spiral locus. In order to improve the movement of the contents and the escape of bubbles, the α is preferably 5 degrees or more.
[0026]
FIG. 6 shows a comparative example with the present invention. In this comparative example, the pitch, the number, and the dimensions of the convex portions 11c and the concave portions 11d arranged in the axial direction at a certain position on the peripheral surface of the body portion are described exactly as in FIG. 1, but the convex portions 11c and the concave portions 11d are described. Is formed along one spiral trajectory. In FIG. 6, since the number of the convex portions 11c and the concave portions 11d arranged is the same as that in FIG. 1, it can be compressed to substantially the same size as in FIG. However, since the spiral trajectory is single, the inclination angle β of the spiral trajectory with respect to the plane orthogonal to the central axis O is extremely smaller than α. Therefore, in FIG. 6, when the body portion is compressed, the content in the convex portion 11 c is difficult to advance to the front portion, and bubbles remaining inside the convex portion 11 c during filling of the content escape in the direction of the front portion. It becomes difficult.
If the spiral trajectory of the concave portion and the convex portion is a single spiral and the angle of the spiral is the same as the large angle α shown in FIG. 1, the entire container is likely to buckle when the trunk portion contracts, and to some extent Independence is lost in the contracted state.
[0027]
4 and 5 show the boundary between the body 11 and the tip 13 of the container.
The top corner of the convex portion 11a along the spiral trajectories A, B, and C is indicated by (A), and the bottom corner of the concave portion 11b is indicated by (B). Moreover, the corner | angular part (I) of the said top part in the terminal part side end of a spiral locus is shown by (1), and the inner surface of the front part 13 of a container is shown by (2). In this example, the end (1) of the top corner of the convex portion 11a communicates with the inner surface (2) of the tip portion 13 in substantially the same plane. Therefore, the contents and bubbles inside the convex portion 11a smoothly move out to the inner surface of the front portion 13 after traveling along the spiral, and the bubbles and the contents are formed at the boundary between the body portion 11 and the front portion 13. Is less likely to remain.
[0028]
Further, since the spiral trajectory is three lines, the terminal end (1) of the top corner of the convex portion 11a formed along the trajectories A, B, and C is 3 around the central axis O at intervals of 120 degrees. It communicates with the inner surface (2) at a point. Therefore, when the body part is compressed, the contents are pulled out from the three parts to the front part 13. The same applies to the bubbles. The contents and bubbles can be easily discharged to escape from the three places.
[0029]
As shown in FIG. 3, the dispenser 20 which is a tool for quantitatively pushing out the contents of the container includes a holder 21, a pressure unit 22, and a pressure shaft 23, and further illustration is omitted. A delivery mechanism for delivering the pressure shaft by a predetermined distance is provided.
The container filled with the contents is loaded into the holder 21, and the pressurizing shaft 23 is sent out by a predetermined distance. At this time, the pressurizing unit 22 presses the container from the rear end surface 12a. The content is discharged from the discharge port 13a by this pressing force, and at the same time, the body portion 11 is compressed and deformed.
[0030]
Since the inclination angle α is large in the convex portion 11a along the three spirals, the contents near the inner wall of the container are smoothly moved to the front portion 13 side and discharged. Further, when the convex portion 11a and the concave portion 11b are deformed so as to be bent, the deformation proceeds along the spiral locus, so that the body portion is deformed and compressed relatively regularly. Therefore, when the pressurizing unit 22 advances a certain distance, the amount of contents discharged from the discharge port 13a can be made substantially constant.
In the example shown in the figure, the spiral trajectory is 3, but this may be 2 or 4 or more.
[0031]
【The invention's effect】
As described above, in the present invention, since the convex portion and the concave portion are provided on the trunk portion with a plurality of spiral trajectories, air bubbles can easily escape to the front portion, and the contents near the inner wall can be easily discharged, and the inner surface of the convex portion can be discharged. The contents are less likely to remain.
[0032]
Further, since the body part is easily deformed and the deformation is regular, the contents discharged when the body part contracts by a predetermined dimension can be quantified.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a container according to the present invention,
FIG. 2 is a side view showing a state where the container shown in FIG. 1 is contracted;
FIG. 3 is a side view showing a method of use for compressing a container;
FIG. 4 is a partially enlarged side view showing a boundary portion between a trunk portion and a tip portion;
5 is a perspective view taken along the arrow V in FIG.
FIG. 6 is a side view showing a part of a container as a comparative example with the present invention;
FIG. 7 is a side view of a conventional compression-type container;
[Explanation of symbols]
11 Body 11a Convex part 11b Concave part 12 Bottom part 13 Front part 13a Discharge port (b) Top part of convex part (b) Bottom part of concave part (1) Top part of convex part at the end of the front part of the spiral (2) Inside

Claims (3)

In a container in which a cylindrical body and a tip having a discharge port at the tip are integrally formed ,
Wherein the circumferential surface of the body portion, and a plurality of protrusions, and the recesses located between adjacent pairs of the projections are formed, the convex portion is orbiting and and a plurality of times around the central axis of the barrel Formed along a plurality of parallel spiral trajectories ,
When the inside of all the convex portions is communicated with the inner surface of the front portion at the boundary portion between the body portion and the front portion, the bubbles in the convex portion are discharged into the front portion when filling the contents. Is possible,
A container characterized in that the peripheral surface of the body portion is compressible in the direction of the central axis by deformation of the concave portion and the convex portion. 2. The container according to claim 1, wherein the top inner surface of the convex portion communicates with the inner surface of the tip portion in substantially the same plane at the boundary portion . The container according to claim 1 or 2, wherein the peripheral surface of the body portion is compressed in the direction of the central axis, and the contents are discharged from the discharge port .

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