JP5618523B2 - Bottle type container - Google Patents

Description

  The present invention relates to a bottle-shaped container to be filled with a beverage, for example, a synthetic resin bottle-shaped container.

  In order to fill various beverages, bottle-type containers, for example, synthetic resin bottle-type containers, are widely used. The cross section of these bottle-type containers is often rectangular in order to facilitate storage or carrying in a refrigerator or the like.

  Some bottle-type containers have a large capacity of about 2 liters. Such a large bottle-shaped container may not be able to sufficiently grasp its body part depending on human hands. For this reason, in recent years, in order to facilitate the gripping of the bottle-shaped container, it has been generally performed to form a constricted part in the body part of the container (see Patent Document 1).

  By the way, a bottle-type container filled with a liquid is usually packed in a cardboard box, and then transported by a truck or the like in a state where such cardboard boxes are sequentially stacked. At this time, a particularly large force is applied to the bottle-shaped container packed in the lowermost cardboard box in the vertical direction. For this reason, in Patent Document 2, a plurality of circumferentially extending grooves are formed in the body of the bottle-type container, and the entire body of the bottle-type container is elastically deformed when a longitudinal force is applied. I try to let them.

JP2008-296920 Japanese Utility Model Publication No. 5-75113

  By the way, even if a groove as described in Patent Document 2 is formed on a bottle-type container in which a constricted portion is formed on the body of the container, the entire body may not be effectively elastically deformed.

  When a large force is applied in the vertical direction of the bottle-type container, it is difficult to apply a straight force to the shoulder of the bottle-type container because it has an elastically deformable body. In many cases, the constricted portion is easily bent in an oblique direction. As a result, the bottle-type container is damaged.

  The present invention has been made in view of such circumstances, and provides a bottle-shaped container that does not undergo plastic deformation even when a considerably large force is applied to the thin bottle-shaped container in the vertical direction. With the goal.

SUMMARY OF THE INVENTION In order to accomplish the above object, a mouth, and a body portion, a shoulder portion connecting the inlet portion and the body portion, and a bottom portion which closes a lower end of said body portion, said A bottle-shaped container having a waist portion extending over the entire circumferential surface of the barrel portion at a longitudinal center position of the barrel portion, wherein the waist portion is an upper and lower inclined portion inclined inward from the barrel portion, and the two A groove bottom surface located between two inclined portions, and the body portion includes an upper portion of the body portion located above the waist portion, and a lower portion of the body portion located below the waist portion. A plurality of circumferentially extending grooves are formed at equal intervals in the lower part of the body part, and when a force is applied to the bottle-shaped container in the longitudinal direction, the lower part of the body part only are configured to deform, the The radius of curvature of the shoulder portion of the tor-shaped container is larger than the radius of curvature in the region between the shoulder portion and the trunk portion, and the radius of curvature in the region between the shoulder portion and the trunk portion is the trunk radius. A bottle shape that is larger than the radius of curvature in the region between the groove and the body portion formed in the lower part of the portion and the radius of curvature in the region between the lower inclined portion of the waist portion and the body portion A container is provided.

  That is, in the first invention, even when a considerably large force is applied to the container in the longitudinal direction, the shoulder and the waist are almost uniform over the entire circumferential direction because the curvature radius of the shoulder and the waist is small. Most of the force is transmitted straight to the lower part of the torso. Therefore, the shoulder portion and the waist portion are hardly deformed, and only the lower portion of the trunk portion is elastically deformed. For this reason, even when a force is applied to the container in the vertical direction, the shoulder and / or the waist does not bend in the oblique direction, so that the shoulder and / or the waist are not damaged. Can be prevented.

According to a second invention, in the first invention, the radius of curvature as viewed from the side of the container in the region between the shoulder and the trunk is R16 to R20, and the shoulder and the trunk The radius of curvature as viewed from the front of the container in the region between and was set to R14 to R18.
According to a third aspect, in the first aspect, the shoulder is smooth over the entire shoulder.
That is, in the third invention, since the protruding portion extending in the vertical direction is not formed on the shoulder portion, the shoulder portion is further prevented from being plastically deformed even when a force is applied to the container in the vertical direction. it can.

It is a perspective view of the bottle type container based on one embodiment of the present invention. It is a front view of the bottle-type container of embodiment shown by FIG. It is a bottom view of the bottle type container of embodiment shown by FIG. It is the cross-sectional view seen along line BB of the bottle-shaped container of embodiment shown by FIG. It is a front partial enlarged view of the bottle-type container of embodiment shown by FIG. It is the longitudinal cross-sectional view seen along line AA of the bottle-shaped container of embodiment shown by FIG. It is a longitudinal cross-sectional view of the recessed part shown by FIG. It is a side view of the bottle-type container of embodiment shown by FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following drawings, the same members are denoted by the same reference numerals. In order to facilitate understanding, the scales of these drawings are appropriately changed.
FIG. 1 is a perspective view of a bottle-type container according to an embodiment of the present invention, and FIG. 2 is a front view of the bottle-type container shown in FIG. The bottle-type container 10 shown in these drawings is made of a synthetic resin, such as polyethylene terephthalate, and has a capacity of about 2 liters. The bottle-type container 10 is formed by biaxially stretching a preform by blow molding. For this reason, the wall thickness of the bottle-type container 10 based on this invention is quite small.

  As shown in FIGS. 1 and 2, the bottle-type container 10 connects the mouth part 11 filled with a liquid such as a beverage, the body part 12 having a substantially rectangular cross section, and the mouth part 11 and the body part 12. It is mainly comprised from the shoulder part 13 and the bottom part 14 which closes the trunk | drum 12 in the opposite side to the opening | mouth part 11. FIG. In addition, although a cap can be attached to the mouth part 11, illustration of the cap is omitted for the purpose of simplicity.

  FIG. 3 is a bottom view of the bottle-type container shown in FIG. A circular recess 18 is formed around the center line C0 of the bottle-shaped container 10 at the bottom 14. A plurality of bottom grooves 14a extend radially from the circular recess 18 to the outer peripheral surface of the bottle-type container 10 (see FIG. 2). The circular recess 18 and the bottom groove 14 a serve to reinforce the bottom 14 of the bottle-type container 10.

  As shown in FIGS. 1 and 2, a waist portion 15 extending in the circumferential direction of the body portion 12 is formed at the longitudinal center position of the body portion 12. As shown in FIG. 2, the waist portion 15 is in the form of a wide groove, and includes an upper inclined surface 15a extending from the upper portion 40 of the trunk portion, a lower inclined surface 15b extending from the lower portion 45 of the trunk portion, and the like. It is comprised from the groove bottom face 15c which connects the upper side inclined surface 15a and the lower side inclined surface 15b. By such a waist portion 15, the trunk portion 12 is divided into a trunk upper portion 40 and a trunk lower portion 45.

  4 is a cross-sectional view taken along line BB of the bottle-type container shown in FIG. As shown in FIG. 4, the cross-sectional shape of the region including the groove bottom surface 15c of the waist portion 15 is also substantially rectangular.

  FIG. 5 is a partially enlarged view of the bottle-type container in the present embodiment. As can be seen from FIG. 5, the upper and lower edges of the upper inclined surface 15a and the lower inclined surface 15b extend in the horizontal direction. Further, the groove bottom surface 15 c of the waist portion 15 is perpendicular to the bottom surface of the bottle-type container 10.

  The overall height of the waist portion 15 is 41.9 mm, and the height of only the groove bottom surface 15 c of the waist portion 15 is 7 mm. For this reason, the human thumb and four fingers opposed thereto, for example, the index finger, the middle finger, the ring finger or the little finger, and the crotch of these fingers and the related palm portion can be brought into close contact with the waist portion 15. As shown in the figure, the lower inclined surface 15b of the waist portion 15 is considerably larger than the upper inclined surface 15a, and the lower inclined surface 15b is formed of a curved surface that protrudes outward.

  Furthermore, as can be seen from FIG. 5, a recess 20 is formed in the area of the waist portion 15 on the front side of the bottle-type container 10. As can be seen from FIG. 4, the recesses 20 are also formed on the back side of the bottle-shaped container 10 so as to face each other. In addition, the recessed part 20 may be formed in the upper part or the lower part adjacent to the waist part 15.

  In FIG. 5, the upper end and the lower end of the recess 20 partially extend in the longitudinal direction of the bottle-type container 10 beyond the groove bottom surface 15c to the upper inclined surface 15a and the lower inclined surface 15b. In addition, the edge of the recess 20 includes an upper edge 21 formed on the upper inclined surface 15a, a lower edge 23 formed on the lower inclined surface 15b, and an intermediate edge formed in the vertical direction over the entire groove bottom surface 15c. Part 22.

  Further, as shown in FIG. 5, the recess 20 has a flat recess bottom surface 26. The bottom surface 26 of the recess is composed of a rectangular extending in the lateral direction and a downward isosceles trapezoid having an upper base in common with the lower long side of the rectangle. As can be seen from FIG. 5, the isosceles trapezoidal portion of the recess bottom surface 26 enters the region of the groove bottom surface 15 c. The concave bottom surface 26 may have a shape different from that shown in FIG. 5, but is desirably large enough to receive the first joint of a human finger.

  In FIG. 5, the lower edge portion 23 of the recess 20 is curved in a convex shape downward. As can be seen from FIG. 5, the lower edge portion 23 is considerably larger than the upper edge portion 21, and as a result, the curvature radius of the lower edge portion 23 is considerably smaller than the curvature radius of the upper edge portion 21. Since the lower edge portion 23 has such a shape, a human finger passes through the lower edge portion 23 from the outer surface of the trunk portion 12 and is easily received in the recess 20.

  As can be seen from FIGS. 4 and 5, the lower edge 23 of the recess 20 is connected to the recess bottom surface 26 by first and second C-shaped curved surfaces 33 and 34 adjacent to each other. Both end portions of the first C-shaped curved surface 33 extending from the lower edge portion 23 are connected to an inclined surface 32 that connects the intermediate edge portion 22 and the recess bottom surface 26. The second C-shaped curved surface 34 adjacent to the concave bottom surface 26 is not connected to the inclined surface 32. The second C-shaped curved surface 34 has two ribs 35 and 36 partially extending in the lateral direction. These ribs 35 and 36 can reinforce the concave portion 20 of the bottle-shaped container 10 in the lateral direction. The ribs 35 and 36 also serve as anti-slip against human fingers.

  The upper edge portion 21 of the recess 20 is connected to the recess bottom surface 26 by the upper surface 31. In FIG. 5, the upper edge portion 21 and the upper surface 31 of the recess 20 are curved in a convex shape upward. When the upper edge portion 21 and the upper surface 31 extend substantially parallel to the waist portion 15, human fingers may bite into the upper edge portion 21 and the upper surface 31 when lifting the bottle-shaped container 10. On the other hand, in the present invention in which the upper edge portion 21 and the upper surface 31 are curved upwardly, human fingers do not bite into the upper edge portion 21 and the upper surface 31. As can be seen from FIG. 5, the central portion in the lateral direction of the concave portion 20 is curved in a convex shape toward the uppermost side. The concave portion 20 in FIG. 5 is drawn in an arc shape with the lateral distance D3 of the concave portion to be described later as the length of the string, but if the horizontal central portion of the bottle-shaped container 10 is at the top, The location excluding the central portion may include a straight portion.

  6 is a longitudinal sectional view taken along line AA of the bottle-type container shown in FIG. 2, and FIG. 7 is a longitudinal sectional view of the concave portion in FIG. As can be seen from FIG. 7 in particular, the upper surface 31 is curved in a convex shape toward the inside of the bottle-shaped container 10 in the vicinity of the concave bottom surface 26. The upper surface 31 may be formed from at least one curved surface, or may be formed from a plurality of flat surfaces.

  Since the recess 20 has such a shape and size, when a human finger grips and lifts the bottle-shaped container 10, the tip of the finger received in the recess 20 is curved between the upper surface 31 and the recess bottom surface 26. Get caught in the part. Therefore, even when the beverage is filled and the bottle-type container 10 is heavy, the tip of the finger does not easily slide out of the recess 20. For this reason, in the present invention, the bottle-shaped container 10 can be easily lifted.

  Further, since the pair of recesses 20 are formed to face each other, different fingers, for example, the thumb and the middle finger can be inserted into the respective recesses 20. Therefore, in the present embodiment, the bottle-shaped container 10 can be easily and reliably gripped.

  In the present embodiment, the depth of the recess 20 (corresponding to a distance perpendicular to the recess bottom surface 26 between the waist portion 15 and the recess bottom surface 26) is relatively deep. The depth D1 of each recess 20 is 5 mm to 7 mm, preferably 6 mm. When the depth D1 is smaller than 5 mm, the tip of the finger is difficult to be caught by the curved portion between the upper surface 31 and the concave bottom surface 26. On the other hand, if the depth D1 is greater than 7 mm, the tip of the finger is difficult to reach the curved portion between the upper surface 31 and the recess bottom surface 26. The lateral distance D3 of the recess 20 is 54 mm to 62 mm, preferably 58 mm.

  Since the recess 20 has such dimensions, the first joint of at least one of the human thumb or middle finger is sufficiently received in the recess 20 when the bottle-shaped container 10 is gripped. Further, when each of the concave bottom surfaces 26 of the concave portion 20 is pressed by a human thumb and middle finger, the central axis of at least one of the thumb or middle finger is positioned inward of the outer surface of the trunk portion 12 in the concave portion 20. Become. As a result, the thumb or middle finger can be reliably hooked on the upper surface 31 of the recess 20.

  When the distance between the short sides of the cross section of the region including the groove bottom surface 15c of the waist portion 15 is D2, the distance D2 is 67 mm to 74 mm, and preferably 71 mm. In many cases, humans feel that an object is easy to hold when the object is gripped with the thumb and other fingers of the hand naturally open. For this reason, when the distance D2 is smaller than 67 mm, it is felt that it is narrow and difficult to hold, and a strong force is applied at the tip of the finger. Therefore, when the cap of the bottle type container 10 is removed, the bottle type It becomes easy for the liquid in the container 10 to flow out from the mouth portion 11. On the other hand, when the distance D2 is larger than 74 mm, it is felt that the distance D2 is wide and difficult to hold, and the liquid in the bottle-type container 10 is easily discharged from the mouth portion 11 in the same manner. The ratio of the total depth (D1 + D1) of the two recesses to the distance D2 is about 0.16, and preferably this ratio is 0.13 to 0.20. In such a case, the bottle-type container 10 can be gripped more appropriately.

  By the way, as can be seen with reference to FIG. 4, the cross section of the lower part 45 of the barrel part of the bottle-shaped container 10 is substantially rectangular, and its four corners 19 are formed as arcs, and the upper part of the barrel part. The same applies to the 40 cross section. In the present invention, the cross section of the region including the groove bottom surface 15c of the waist part 15 is also substantially rectangular, and the four corners 16 are also formed as arcs.

  FIG. 8 is a side view of the bottle-type container of the embodiment shown in FIG. In FIG. 8, when a person wants to hold the bottle-shaped container 10, two human fingers, for example, the thumb and the middle finger are inserted into the mutually opposing portions of the waist portion 15 in the penetration direction of the paper surface of FIG. 8. The In this embodiment, the vertical dimension of the waist portion 15 is 41.9 mm, which is relatively large, and the waist portion 15 is formed on the entire outer peripheral surface of the body portion 12, and is described above with reference to FIG. 5. As described above, the waist portion 15 includes the upper inclined surface 15a and the lower inclined surface 15b. Therefore, the upper inclined surface 15a and the lower inclined surface 15b serve as a guide, and the two human fingers are guided to the outer periphery of the groove bottom surface 15c.

  Further, in FIG. 4, a line A <b> 1 passing through the centers of the two long sides of the cross section of the body portion 12 is shown. This line A1 is common with the line which connected the center of the two recessed parts 20 which oppose each other. The two points C1 and C2 arranged on the line A1 are located at the intersections between the line A1 and the circumferential extension line of the groove bottom surface 15c. As shown in FIG. 4, the circumferential distance D4 extending from one point C1 through the extension line of the groove bottom surface 15c and a part of the groove bottom surface 15c to the other point C2 is 140 mm to 165 mm, preferably 150 mm. To 156 mm. When the circumferential distance D4 is shorter than 140 mm, the tip of the finger exceeds the recess 20 when a human with a long finger grips the container 10. When the circumferential distance D4 is longer than 165 mm, the tip of the finger cannot reach the curved portion of the upper surface 31 of the recess 20 when a person with a short finger grips the container 10. On the other hand, when the circumferential distance D4 is in the range of 140 mm to 165 mm, the container 10 can be easily gripped by a human with a long finger or a human with a short finger.

  Furthermore, when the human hand is viewed from the thumb and index finger side, the human hand is generally in a substantially C shape. The distance D2 is dimensioned so that the human hand does not need to open the fingers excessively. Since the radius of curvature of the four corners 16 at the groove bottom surface 15c of the waist portion 15 of the container 10 is relatively large, the container 10 fits a substantially C-shaped human hand. Therefore, when grasping the container 10, the human does not need to open the fingers excessively. In addition, the curvature radius of the four corner | angular parts 16 in the groove bottom face 15c of the waist part 15 is 24 mm to 34 mm, Preferably it is 28 mm to 30 mm.

  When two human fingers are inserted into the waist portion 15, the two human fingers, for example the thumb and middle finger, the crotch of these fingers and the associated palm portion fit snugly into the waist portion 15 and the upper inclined surface 15a. It becomes like this. Thereby, the tip of a human finger can reach the curved portion of the upper surface 31 of the recess 20. Therefore, from this state, when the human hand is raised, the bottle-type container 10 is supported by two human fingers, such as the thumb and middle finger, the crotch of these fingers, and the associated palm part. Therefore, it is not necessary to hold the bottle-shaped container 10 with a strong force when lifting the bottle-shaped container 10. For this reason, it becomes possible to lift the bottle-shaped container 10 easily.

  In addition, since it is not necessary to apply a strong force at the tip of the finger, for example, even when the cap of the bottle-shaped container 10 is removed, the liquid in the bottle-shaped container 10 does not flow out from the mouth portion 11. Absent. Therefore, the bottle-type container 10 can be lifted and transported stably.

  Here, referring to FIGS. 1, 2, and 6, a plurality of grooves 41 extending in the circumferential direction are formed in the trunk upper portion 40 of the trunk 12, and the trunk lower portion 45 is circumferentially formed. A plurality of extending grooves 46 are formed. These grooves 41 and 46 serve to elastically deform the body portion 12 of the bottle-shaped container 10 in the vertical direction when a vertical force is applied to the bottle-shaped container 10.

  Usually, since a product label (not shown) is attached to the upper part 40 of the trunk, a vertical rib or the like is provided in the groove 41 of the upper part 40 of the trunk so that the product label (not shown) can be seen well. When provided, only the trunk lower portion 45 of the trunk 12 is elastically deformed.

  Further, as shown in FIG. 6, the region X <b> 1 between the shoulder portion 13 and the trunk portion 12 is formed from an arc, and the groove 46 formed in the trunk lower portion 45 and the trunk lower portion 45. Similarly, the region X3 is formed by an arc. In FIG. 6, the groove 46 located second from the top in the trunk lower portion 45 is shown as a representative of the region X3, but the other grooves 46 in the trunk lower portion 45 are the same. To do. Further, as can be seen with reference to FIG. 5 again, a region X2 between the lower inclined surface 15b of the waist portion 15 and the lower portion 45 of the trunk portion is also formed from an arc.

As can be seen from FIG. 6, in the region X1, the radius of curvature R1 when the bottle-shaped container 10 is viewed from the side is relatively large, but smaller than the radius of curvature of the shoulder 13 itself. Similarly, as can be seen from FIG. 2, in the region X <b> 1, the radius of curvature R <b> 1 ′ when the bottle-type container 10 is viewed from the front is also relatively large but smaller than the radius of curvature of the shoulder portion 13. Further, the curvature radius R1 is larger than the curvature radius R3 in the region X3 and larger than the curvature radius R2 in the region X2. Further, as can be seen by comparing FIG. 5 and FIG. 6, the curvature radius R2 in the region X2 is larger than the curvature radius R3 in the region X3. The radius of curvature R1 viewed from the side is R10 to R28, preferably R16 to R20. The radius of curvature R1 ′ viewed from the front is R10 to R26, preferably R14 to R18. When these curvature radii R1 and R1 ′ are larger than the above-described values, the shoulder portion 13 of the container 10 is easily plastically deformed when a force is applied to the container 10 in the vertical direction.

  As described above, the bottle-shaped container 10 is packed into a cardboard box (not shown) at the time of transportation, and a plurality of cardboard boxes are sequentially stacked. At this time, a considerably large force is applied to each bottle-shaped container 10 in the vertical direction.

  In this embodiment, although the curvature radii R1 and R1 ′ are larger than the curvature radii R2 and R3, the shoulder 13 is considerably smaller than the curvature radii of the shoulder 13 itself. Close to standing. That is, in the present embodiment, the curvature radii R1 and R1 'are smaller than the curvature radii of the shoulder portion 13, so the angle of the shoulder portion 13 with respect to the horizontal plane is increased. Therefore, even when a considerably large force is applied to the bottle-shaped container 10 in the vertical direction, the shoulder portion 13 and the waist portion 15 of the bottle-shaped container 10 are hardly deformed, and most of the applied force. Is transmitted straight to the lower part 45 of the trunk part. For this reason, in the present embodiment, when a vertical force is applied, a portion located above the waist portion 15 of the bottle-shaped container 10 sinks substantially evenly, and the lower portion 45 of the trunk portion is mainly elastically deformed. To come. That is, in the present embodiment, even when a force is applied to the bottle-shaped container 10 in the vertical direction, the shoulder portion 13 and / or the waist portion 15 do not bend in the oblique direction. Therefore, they can be prevented from being damaged by plastic deformation.

  Furthermore, as can be seen from FIG. 1 and the like in particular, the shoulder portion 13 of the bottle-shaped container 10 is smooth over the entire circumferential direction, and no bulging portion or the like is formed. Therefore, even when a vertical force is applied to the bottle-shaped container 10, no stress is concentrated on such a raised portion, and therefore, such a raised portion may be plastically deformed. Absent. Therefore, in the present embodiment, it is possible to prevent the shoulder portion 13 of the bottle-type container 10 from being plastically deformed.

  In addition, in this embodiment, although demonstrated as what the bottle-shaped container 10 was formed from the synthetic resin, the bottle-shaped container 10 may be formed from other materials, for example, glass.

DESCRIPTION OF SYMBOLS 10 Bottle type container 11 Mouth part 12 Body part 13 Shoulder part 14 Bottom part 14a Bottom groove 15 Waist part 15a Upper inclined surface 15b Lower inclined surface 15c Groove bottom face 16 Corner part 18 Circular depression 19 Corner part 20 Concave part 21 Upper edge part 22 Middle Edge portion 23 Lower edge portion 26 Recess bottom surface 31 Upper surface 32 Inclined surface 33, 34 C-shaped curved surface 35, 36 Rib 40 Body upper portion 41 groove 45 Body lower portion 46 groove

Claims (3)

A mouth portion, a trunk portion, a shoulder portion connecting the mouth portion and the trunk portion, a bottom portion closing the lower end of the trunk portion, and a whole circumferential surface of the trunk portion at a longitudinal center position of the trunk portion. In a bottle-shaped container having a waist part extending,
The waist portion includes an upper and lower inclined portion inclined inward from the trunk portion, and a groove bottom surface located between the two inclined portions,
The trunk includes an upper portion of a trunk located above the waist, and a lower portion of the trunk located below the waist.
A plurality of grooves extending in the circumferential direction are formed at equal intervals in the lower portion of the body portion ,
When a force is applied to the bottle-shaped container in the vertical direction, only the lower part of the trunk is configured to be deformed,
The radius of curvature of the shoulder of the bottle-type container is larger than the radius of curvature in the region between the shoulder and the body, and the radius of curvature in the region between the shoulder and the body is A bottle having a radius of curvature in a region between a groove formed in a lower portion of the body portion and the body portion and a radius of curvature in a region between the lower inclined portion of the waist portion and the body portion. Mold container.   The radius of curvature viewed from the side of the container in the region between the shoulder and the body is R16 to R20, and the curvature viewed from the front of the container in the region between the shoulder and the body. The bottle-type container according to claim 1, wherein the radius is R14 to R18.   The bottle-type container according to claim 1, wherein the shoulder portion is smooth over the entire shoulder portion.

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