JP5250327B2 - Biaxial stretch blow molded container - Google Patents

Description

  The present invention relates to a biaxially stretched blow-molded container which is suitable for a large capacity and easy to grip.

  A container having a relatively large capacity may be provided with a handle separate from the container so that the container can be easily gripped. However, a container with a handle requires a handle separately from the container, and requires a technique such as insert molding for integrating the handle with the container, and is more expensive than a container without a handle.

  On the other hand, containers are provided in which a fingertip is made to enter the body itself of a container to be biaxially stretch blow-molded so as to be easily grasped (Patent Documents 1 to 3). These containers have an advantage that they can be manufactured at a lower cost than containers with handles because the gripping part can be formed on the biaxially stretched body part itself.

  In Patent Document 1, as shown in FIGS. 1 to 5, a central circumferential groove (4) for reinforcement is provided at a substantially central height position of the body (2), and the central circumferential groove (4) is provided. There is disclosed a synthetic resin casing provided with a recess (3) having a height and a width that allow a single fingertip to enter, with a partly shared configuration.

  In FIG. 1 to FIG. 5 of Patent Document 2, a finger-hanging recess (6) similar to Patent Document 1 sharing a part of the circumferential groove (3) of the body part (2) is formed more than the circumferential groove (3). It is disclosed to form with a large depth.

Also in patent document 3, the grip part (7) which shared a part of circumferential groove (3) of the trunk | drum (2) in FIG. 1 similarly to patent documents 1 and 2, or FIG. The grip part (7) provided in the trunk | drum of the container which is not is disclosed. As in the case of Patent Document 2, the cross-sectional shape of the gripping portion (7) has a recess (76) having a depth larger than that of the circumferential groove (3) when the circumferential groove (3) exists. The cross-sectional shape of the gripping part (7) that differs from Patent Documents 1 and 2 is defined.
Japanese Patent No. 2839012 Japanese Patent No. 3059975 JP 2004-250063 A

  However, Patent Documents 1 to 3 described above disclose a recess functioning as a gripping part that shares a part of the circumferential groove, and there is a problem that the position of the recess is limited and the variety of designs is lacking. is there.

  Further, since the height position of the circumferential groove is generally a position that bisects the container height, the position above the center of gravity height position of the container is gripped. Therefore, there is a problem that it is difficult to pour when the container is filled with the contents.

  Furthermore, when the capacity of the container is increased to 1.5 liters and 2 liters, when only one gripping part is provided at the center of the longitudinal axis of the wide side part, women or children with relatively small hand sizes There is a problem that it is difficult to grasp. If one grip portion is provided horizontally, it can be inserted. However, since the concave portion is larger than the inserted fingertip, the grip is not stable, and there is a problem that it is easy to slide because there is no stopper on the tip side of the fingertip.

  Accordingly, an object of the present invention is to provide a biaxially stretched blow-molded container that is easy to be stably gripped from any of the two directions on the side of the container at a gripping position that is easily balanced even when fully filled. is there.

  Another object of the present invention is to provide a biaxially stretched blow molded container that is a heat resistant container and can be used as a part of a reduced pressure absorption panel that easily deforms a finger-holding portion for gripping at the time of reduced pressure. It is in.

The biaxial stretch blow molded container according to one aspect of the present invention is
Having a mouth, a body, a shoulder connecting the mouth and the body, and a bottom for closing the body,
The trunk is
Two first side parts arranged opposite to each other;
An inwardly recessed peripheral rib that divides the two first side parts into two upper side parts and two lower side parts;
Each of the two lower side surface portions is disposed on both sides of the partition wall located on the longitudinal center line, and is formed to be recessed inward from the flat surface which is the outermost surface at the two lower side surface portions. , Two finger hooks that can insert the finger pad of the last node of the finger,
It is characterized by including.

  In the present invention, since the two finger hanging portions are provided on the wide first lower side surface portion, each finger hanging portion can be arranged at a position where it can be easily grasped from either the left or right side of the container. In addition, since two finger-hanging portions are provided on the first lower side surface portion, the size of one finger-hanging portion that can fit one fingertip, in particular, the lateral width thereof can be set. Therefore, since one finger-hanging part becomes a recessed part suitable for the inserted fingertip, gripping is stable. In addition, a partition wall exists on the tip side of the fingertip inserted into one finger-hanging portion. This partition functions as a stopper when the fingertip is inserted, and the gripping position is stabilized.

  In particular, when the capacity of the container is increased to 1.5 liters, 2 liters, etc., when only one gripping part is provided at the center of the longitudinal axis of the wide side part, a relatively small hand-sized woman or child, etc. Is difficult to grasp. If one grip part disclosed in Patent Literatures 1 to 3 is provided horizontally, it can be inserted. However, since the recess is larger than the inserted fingertip, the gripping position is not stable, particularly on the insertion tip side of the fingertip. There is no stopper for insertion. When pouring the contents while tilting the container, the wall on the rear end side of the gripping part becomes a stopper, but if the gripping position when inserting the fingertip is not stable, it will hit the wall on the rear end side when inserting the container. The finger slides in the grip part until it is unstable.

  In general containers, the peripheral rib is provided to reinforce the trunk at a position that bisects the bottom from the bottom of the mouth, but a small-capacity shoulder may be disposed in the upper region of the peripheral rib. In consideration, the capacity of the lower region of the peripheral rib is often larger than the capacity of the upper region of the peripheral rib.

  Therefore, when the finger hooks are provided on the two lower side surfaces below the peripheral rib, the container can be gripped at a gripping position that is easily balanced even at the time of full filling.

  Moreover, the container which concerns on 1 aspect of this invention is suitable also for the heat-resistant container which heat-fills in the state heated, for example to about 80-95 degreeC, for sterilization. This is because the two finger-hanging parts and the central partition are integrated, and when the contents are cooled to room temperature, they are displaced when the inside of the container is decompressed and function as a part of the decompression absorbing panel. is there. Since the two finger-hanging portions and the partition wall between them have a reinforcing structure in which a concave rib, a convex rib, and a concave rib are formed in the cross section, the panel strength in that region is increased. Therefore, the two finger-hanging portions and the partition wall between them can be integrally displaced during decompression using the surrounding flat surface as a hinge.

  In one aspect of the present invention, the vertical axis height position at which the two finger hanging portions are arranged is higher than the vertical axis center of gravity of the biaxially stretched blow-molded container at the time of full filling, rather than the vertical axis height position of the peripheral rib. The position can be close to the position. Such a positional relationship can be ensured by providing finger hooking portions on the two lower side surface portions below the peripheral ribs. When the gripping position is close to the position of the center of gravity of the vertical axis of the biaxially stretched blow-molded container at the time of full filling, the container can be gripped at a gripping position that is easily balanced even at the time of full filling.

In one aspect of the present invention, each of the two finger hanging portions includes a first vertical side near the vertical center line and a second vertical side farther from the vertical center line than the first vertical side. Each on the contour line,
Each of the two finger rests further includes
An inwardly recessed bottom wall,
A steeply inclined portion connecting the first vertical side and the bottom wall portion;
A gently inclined portion connecting the second vertical side and the bottom wall portion;
Can be included.

  If the finger-hanging portion has the structure as described above, it is easy to insert the fingertip due to the presence of the gently inclined portion, and the presence of the steeply inclined portion increases the stopper effect of the fingertip.

  In one aspect of the present invention, the partition between the two finger rests can be recessed inward from the flat surface. If it carries out like this, even if it connects a bottom wall part and a partition in a steep slope part, shape shaping at the time of biaxial stretch blow molding will become easy.

  In one aspect of the present invention, a partition region that is flush with the flat surface is disposed in a region between the two finger-hanging portions and the peripheral rib, and the extension extends upwards flush with the partition wall. The region can be divided into the partition region to reach the peripheral rib. If it carries out like this, it will become easy to deform | transform at the time of pressure_reduction | reduced_pressure by two finger-hook parts triggered by the partition in the center.

  In one aspect of the present invention, the peripheral rib may have a central rib protruding outward from the concave surface of the peripheral rib and recessed inward from the flat surface on the longitudinal center line. .

  If it carries out like this, the partition located in a straight line, the extension area | region, and a center rib will displace together, and it will become easy to displace at the time of pressure reduction by two finger-hanging parts following.

  In one aspect of the present invention, the partition wall is provided with recessed ribs that are recessed inwardly than the partition wall and shallower than the bottom wall portions of the two finger-hanging portions, and both ends of the recessed ribs are disposed on the ends. It can be made to communicate with two finger-hanging parts. If it carries out like this, the concave rib provided in the middle of the partition can reinforce the partition which deform | transforms under reduced pressure.

In one aspect of the present invention, the body portion has a width that is narrower than the widths of the two first side surface portions, and the two second side surface portions that face each other, and the width of the two first side surface portions. Chamfered portions respectively provided at four corners where each end in the direction intersects with each end in the width direction of the two second side surface portions,
Further, a vacuum absorbing panel can be disposed on the two lower side surface portions below the two finger-hanging portions.

  According to one aspect of the present invention, the panel area of the vacuum absorbing panel is reduced by the amount of the two finger rests and the partition provided on the lower side surface. However, at the time of the above-mentioned decompression, the flat surface and the partition region having relatively low strength are used as hinge regions, and the two finger-hanging portions, the partition walls, and the decompression absorption panel located inside thereof are displaced inward while maintaining their shapes. Can be absorbed under reduced pressure. That is, the two finger-hanging portions and the partition wall can also function as another part of the reduced pressure absorption panel, so that the displacement during the reduced pressure can be sufficiently absorbed together with the reduced pressure absorption panel.

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as means for solving the present invention. Not necessarily.

(Overall structure of container)
FIG. 1 is a front view of a biaxial stretch blow molded container 10 according to the present embodiment. In FIG. 1, the container 10 is formed by injection-molding a bottomed cylindrical preform (not shown) having an open mouth portion 12 and then introducing a stretching rod and blow air into the preform. It is obtained by biaxially stretching blow molding the bottomed body portion excluding the portion 12. The container 10 includes an injection-molded mouth 12, a body 20 having a substantially rectangular cross section, a shoulder 14 connecting the mouth 12 and the body 20, and a bottom 16 that closes the body 20. And have.

  2 is an end view taken along line II-II in FIG. 1, and FIG. 3 is an end view taken along line III-III in FIG. 4A is an end view obtained by cutting the entire container 10 along a transverse line IVA-IVA in FIG. 2, and FIG. 4B is an end view obtained by cutting the entire container 10 along a transverse line IVB-IVB in FIG. FIG. 4C is an end view of the entire container 10 cut along a transverse line IVC-IVC in FIG. 4 (A) to 4 (C), a relatively thick mouth portion 12 formed by injection molding in the container 10 and a biaxially stretched region from the thick mouth portion 12 to the shoulder portion 14. Except for the thickness of the transition part, the shoulder part 14, the bottom part 16 and the body part 20 are biaxially stretched and extremely thin, so the thickness of the thin part is shown only by a solid line.

  As shown in FIGS. 1 and 2, the body portion 20 of the container 10 includes two first side surfaces 30 that are wide and two second side surfaces 40 that are narrow, and has a substantially transverse cross section. It is formed in a rectangle. Further, four chamfered portions 60 are formed at the four corners where the both ends in the width direction of the two first side surface portions 30 and the both ends in the width direction of the two second side surface portions 40 intersect. Can do. In addition, the thing which makes the chamfer 60 like this embodiment, and the thing which curved the corner | angular part instead are called the trunk | drum 20 with a substantially rectangular cross section. Note that the present invention is not limited to this, and other body shapes are not limited to the above-described various shapes as long as the body portion 20 has at least two first side surface portions 30 facing each other.

  As shown in FIGS. 1-4, the trunk | drum 20 was provided in the position which bisects the two 1st side surface parts 30 and the 2nd 2nd side surface parts 40 in a height direction, The circumferential rib hollow inwardly 70. The circumferential rib 70 is provided for the purpose of increasing the rigidity of the body portion 20. The cross-sectional shape of the peripheral rib 70 is, for example, as shown in FIG. 3, and the four first and second side surface portions 30 and 40 except for the four chamfered portions 60 are inwardly directed toward the center in the width direction. A concave rib 72 in which the amount of depression increases and a convex central rib 74 that protrudes outward at the center in the width direction are provided. The central rib 74 protrudes outward from the concave surface of the peripheral rib 70 and is recessed inward from the flat surface 34A which is the outermost surface.

  As shown in FIGS. 1 to 4, the two wide first side surfaces 30 are divided into two first upper side surfaces 32 and two first lower side surfaces 34 by the circumferential rib 70. Similarly, as shown in FIGS. 1 to 4, the two second side surface portions 40 having a narrow width are divided into two second upper side surface portions 42 and two second lower side surface portions 44 by the peripheral rib 70. Is done. Further, the four chamfered portions 60 are also divided into four upper side chamfered portions 62 and four lower side chamfered portions 64. The four upper side chamfered portions 62 and the four lower side chamfered portions 64 can be provided with reinforcing ribs 66 that are recessed inward to reinforce the chamfered portion 60 and prevent its deformation. The reinforcing rib 66 may be a single continuous rib that is long along the vertical direction of the chamfered portions 62 and 64, or a plurality of ribs may be arranged at intervals in the vertical direction. Further, the reinforcing ribs 66 may be formed only on the four lower side chamfered portions 64, or the strength of the narrow chamfered portions 60 themselves is relatively high, and therefore the reinforcing ribs 66 may not be provided at all.

(Fingering part)
In the present embodiment, as shown in FIGS. 1 and 2, two finger hanging portions 100 are provided on each of the two wide first lower side surfaces 34, and two first lower side surfaces 34. . The two finger rests 100, 100 provided on each of the two first lower side surface parts 34 are arranged on both sides of the partition wall 110 located on each vertical center line P1 of the two first lower side surface parts 34. The first lower side surface portion 34 is formed so as to be recessed inward from the flat surface 34A which is the outermost surface. Preferably, the two finger rests 100, 100 are arranged at respective positions to be lined with respect to the vertical center line P1.

  FIG. 5 shows a state in which the container 10 is gripped by inserting the fingertips of the thumb 200 and the index finger 210 into the finger rests 100, 100 on each of the two first lower side surfaces 34, respectively. Yes. As shown in FIG. 5, each of the two finger-hanging portions 100, 100 used is displaced to one side from a center line P2 that bisects the width direction of the two first lower side surface portions 34, 34. ing. Therefore, even a woman or child with a relatively small hand size can easily hold the container 10.

  Further, the two finger rests 100 are disposed on both sides of the partition wall 110 shown in FIG. 1 on each one of the two first lower side surfaces 34, preferably at a line symmetrical position with respect to the longitudinal center line P1. , 100 is not limited to the case of grasping from the left side as shown in FIG. 5, but can be easily grasped similarly from the right side of FIG.

  When this embodiment is compared with Patent Documents 1 to 3 described above, there are the following differences. According to Patent Documents 1 to 3, the grip portion formed integrally with the body portion has a height and a width that allow one fingertip to enter in a configuration that shares a part with the circumferential groove (circumferential rib). One recessed portion having the same is disposed on the vertical axis center line P1.

  Therefore, when the capacity of the container is increased to 1.5 liters, 2 liters, etc., when only one gripping portion is provided at the center of the longitudinal axis of the wide side portion, a relatively small hand-sized woman or child, etc. Is difficult to grasp. If one grip portion is provided horizontally, it can be inserted. However, since the recess is larger than the inserted fingertip, the grip is not stable, and there is no stopper (partition wall 110 in FIG. 5) particularly on the tip side of the fingertip.

  In the present embodiment, since the two finger hanging portions 100, 100 are provided on the first lower side surface portion 34, as described above, each finger hanging portion 100, 100 can be disposed at a position where it can be easily grasped from either the left or right of FIG. In addition, since the two finger rest portions 100, 100 are provided on the first lower side surface portion 34, one finger rest portion 100 can set a size that can fit one finger tip, particularly its lateral width. Therefore, since one finger-hanging part 100 becomes a recessed part suitable for the inserted fingertip, gripping is stable. In addition, a partition 110 is present on the tip side of the fingertip inserted into one finger rest 100. The partition 110 functions as a stopper when the fingertip is inserted, and the gripping position is stabilized. When pouring the contents while tilting the container, the wall on the rear end side of the gripping part serves as a stopper, but the gripping position is stable when the fingertip is inserted, so until the container hits the wall on the rear end side when inserted A finger does not slip in the finger rest portion 100 and can be stably held even when the contents are poured.

  Furthermore, the finger hook part 100 of this embodiment can be arrange | positioned in the optimal position also in the vertical direction height direction of the container 10. FIG. As shown in FIG. 1, the height of the longitudinal axis of the peripheral rib 70 is located at a distance L1 from the lower portion of the mouth 12, for example, the support ring 12A, and a distance L2 from the bottom 16, and is substantially L1 = L2. . In fact, the circumferential rib 70 is a position where the length from the lower end of the mouth portion 12 to the bottom portion 16 is almost divided into two from the technical reason that the rigidity of the body portion 20 is increased and the viewpoint of the appearance design, or the L1 side. In many cases, L1> L2 is set by slightly lengthening (in this embodiment in which the capacity of the container 10 is 2 liters, L1≈135 mm and L2≈145 mm). In any case, considering that the shoulder 14 having a small capacity is disposed in the upper area of the length L1, the capacity of the lower area of the peripheral rib 70 is clearly larger than the capacity of the upper area of the peripheral rib 70. Is big.

  Therefore, in the container 10 of the present embodiment, which is a general container having the peripheral rib 70, the position of the center of gravity in the height direction of the vertical axis of the container 10 when fully filled is always located below the peripheral rib 70. I understand. As in the above-described Patent Documents 1 to 3, when the concave portion for finger hooking is formed with a configuration in which a part of the peripheral rib 70 is shared, the gripping position is above the position of the center of gravity of the container when fully filled. In the present embodiment, the finger rest portion 100 is provided on the first lower side surface portion 34 below the peripheral rib 70. Therefore, the vertical position where the two finger rests 100 and 100 are arranged is closer to or substantially equal to the position of the center of gravity of the container 10 when fully filled, than the vertical position of the circumferential rib 70. For this reason, even if the arm strength is weak, the container 10 can be stably held, and the operation of inclining the container 10 and pouring the contents can be performed stably.

(Detailed structure of finger rest)
Each of the two finger rests 100 provided on each of the two first lower side surfaces 34 includes a first vertical side 102 close to the vertical center line P1 as shown in FIGS. The second vertical side 104, which is farther from the vertical center line P1 than the vertical side 102, is on the contour line.

  Each of the two finger rest portions 100 provided on each of the two first lower side surface portions 34 further includes a bottom wall portion 105 that is recessed inward, and a steep portion that connects the first vertical side 102 and the bottom wall portion 105. An inclined portion 106 and a gentle inclined portion 107 connecting the second vertical side 104 and the bottom wall portion 105 are provided. That is, the finger hooking portion 100 having the bottom wall portion 105, the steeply inclined portion 106, and the gently inclined portion 107 has a cross-sectional shape that fits the finger pad of the terminal node of the finger as shown in FIG. In particular, assuming a gripping state as shown in FIG. 5, it is easy to insert a fingertip due to the presence of the gently inclined portion 107, and the presence of the steeply inclined portion 106 enhances the stopper effect of the fingertip.

  Here, as shown in FIGS. 2 and 4A, the partition 110 between the two finger rests 100 is more than the flat surface 34A outside the second vertical sides 104 of the two finger rests 100. It is recessed inward. In this way, the step between the bottom wall portion 105 and the partition wall 110 is reduced, and even when the bottom wall portion 105 and the partition wall 110 are connected by the steeply inclined portion 106 that is generally difficult to mold, Easy to shape. In addition, although the level | step difference between the bottom wall part 105 and the flat surface 34A is comparatively large, since these are connected by the gentle inclination part 107, the shaping at the time of biaxial stretch blow molding becomes easy.

  As shown in FIG. 1, a flat area 34 </ b> A and a partition area 34 </ b> B flush with the partition wall 110 are arranged in the area between the two finger rests 100 and the peripheral rib 70, and extends upwards flush with the partition wall 110. The extended region 112 that has been divided into the partition region 34B reaches the peripheral rib 70 (see also FIG. 4A).

  Further, for example, on the lower end side of the partition wall 110, the recess is recessed inward than the partition wall 110 and shallower than the bottom wall portions 105 of the two finger rests 100, as shown in FIGS. 1 and 4A. The concave rib 111 is provided. Both ends of the concave rib 111 communicate with the two finger rests 100.

(Structure for vacuum absorption)
Some contents filled in the container 10 are heat-filled in a state of being heated to, for example, about 80 to 95 ° C. for sterilization. The container 10 according to the present embodiment is extremely useful as such a heat-resistant container.

  After the contents are hot-filled, a cap is attached to the mouth portion 12, and the contents sealed in the container 10 are cooled to room temperature. Along with this cooling, the inside of the container 10 is depressurized, and when the pressure is depressurized, the container 10 is pushed to the atmospheric pressure, and a part of the container 10 is depressed to deform its appearance. In order to maintain the commercial value of the container 10 even if such deformation occurs, the container 10 is provided with a reduced pressure absorption panel, and the reduced pressure absorption panel is preferentially displaced to deform the shape in the container 10 due to the reduced pressure. I try to absorb it. When the cap is removed, the inside of the container 10 is opened to the atmosphere, but the deformed reduced pressure absorption panel returns to the original state, and the appearance of the container 10 is maintained.

  In the present embodiment, the reduced pressure absorption panel 120 is disposed below the two finger rests 100 in at least two lower side surfaces 34. In this reduced pressure absorption panel 120, for example, the concave ribs 122 and the convex ribs 124 are alternately formed in a square region surrounded by the flat surface 34A that is the outermost surface of the two lower side surface portions 34. It is formed by reinforcing the inside of the square area.

  Two finger rests 100 and a partition wall 110 are present on the upper side of the reduced pressure absorption panel 120, and lower side chamfers 64 are present on the left and right sides of the reduced pressure absorption panel 120 with the flat surface 34 </ b> A sandwiched therebetween. For example, there is a reinforcing rib 130 that is recessed inward from the flat surface 34A and extends horizontally (see FIGS. 1 and 4A). However, the reinforcing rib 130 can be omitted.

  Here, considering the panel strength of the two lower side surface portions 34, as described above, the vacuum absorbing panel 120 is reinforced and the panel strength is high. Since the two finger-hanging portions 100 and the partition 110 between them are also formed with concave ribs, convex ribs, and concave ribs in the cross section, the panel strength in that region is also high.

  On the other hand, when considering the periphery of the two lower side surface portions 34, the strength of the peripheral rib 70 located on the upper side of the lower side surface portion 34 is high, and the strength of the lower side surface taking portions 66 located on the left and right sides of the lower side surface portion 34 is also high. Furthermore, the strength of the bottom portion 16 located below the lower side surface portion 34 is also high.

  From the above, the locations where the panel strength is relatively low in the two lower side surface portions 34 are the reinforcing regions of the two finger rest portions 100, the partition wall 110 and the vacuum absorbing panel 120, the peripheral rib 70, the lower side surface taking portion 66 and the bottom portion. A region between the sixteen reinforcing regions, that is, a flat surface 34A and a partition region 34B which are outermost surfaces of the two lower side surface portions 34.

  At the time of depressurization described above, the flat surface 34A and the partition region 34B having relatively low strength are used as hinge regions, and the two finger rests 100, the partition wall 110, and the depressurization absorption panel 120 located on the inside thereof are kept inside while maintaining their shapes. Will be displaced.

  That is, the two finger rests 100 and the partition 110 can function in the same manner as the reduced pressure absorption panel 120. In the present embodiment, unlike the conventional technique in which the peripheral ribs are provided with the finger hanging portions, the finger hanging portions 100 are provided on the two lower side surface portions 34 below the peripheral rib 70, and accordingly, the decompression that can be formed on the lower side surface portion 34 accordingly. The area of the absorption panel 120 must be reduced. However, since the two finger rests 100 and the partition 110 can also function as a reduced pressure absorption panel, it is possible to maintain the reduced pressure absorption effect at the two lower side surfaces 34.

  Here, the reason why the extended region 112 extending upwards flush with the partition wall 110 bisects the partition region 34B to reach the peripheral rib 70 is that the two finger-hanging portions 100 trigger the partition wall 110 at the center. As shown in FIG. In particular, since the central rib 74 disposed facing the peripheral rib 70 exists on the extension of the extension region 112, the partition wall 110, the extension region 112, and the center rib 74 positioned in a straight line are displaced together. This makes it easier for the two finger rests 100 to follow and displace. The concave rib 111 provided in the middle of the partition wall 110 reinforces the partition wall 110 that is deformed under reduced pressure, but is not necessarily provided.

  Although the present embodiment has been described in detail as described above, those skilled in the art can easily understand that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings.

It is a front view of the biaxial stretch blow molding container concerning one embodiment of the present invention. It is the II-II end view of FIG. FIG. 3 is an end view taken along line III-III in FIG. 1. 4A is an end view obtained by cutting the entire container along a transverse line IVA-IVA in FIG. 2, FIG. 4B is an end view obtained by cutting the entire container along a transverse line IVB-IVB in FIG. (C) is the end view which cut | disconnected the whole container by the transverse line IVC-IVC of FIG. It is a schematic explanatory drawing which shows the state which inserted the finger pad of the last node of a thumb and an index finger, respectively, and hold | gripped the container in the finger-hook part in each of two 1st lower surface parts.

Explanation of symbols

10 container, 12 mouth part, 14 shoulder part, 16 bottom part, 20 trunk part, 30 1st side part,
32 upper side surface portion (first upper side surface portion), 34 lower side surface portion (first lower side surface portion), 34A flat surface, 34B partition region, 40 second side surface portion, 60 chamfered portion, 62 upper side surface chamfered portion,
64 Lower side chamfer, 66 Reinforcement rib, 70 Circumference rib, 74 Center rib,
100 finger rest, 102 first vertical side, 104 second vertical side, 105 bottom wall,
106 steeply inclined portion, 107 gently inclined portion, 110 partition wall, 111 concave rib,
112 extension region, 120 vacuum absorption panel, P1 vertical axis center line

Claims (6)

Having a mouth, a body, a shoulder connecting the mouth and the body, and a bottom for closing the body,
The trunk is
Two first side parts arranged opposite to each other;
An inwardly recessed peripheral rib that divides the two first side parts into two upper side parts and two lower side parts;
Each of the two lower side surface portions is disposed on both sides of the partition wall located on the longitudinal center line, and is formed to be recessed inward from the flat surface which is the outermost surface at the two lower side surface portions. , Two finger hooks that can insert the finger pad of the last node of the finger,
Only including,
Each of the two finger-hanging portions has a first vertical side near the vertical center line and a second vertical side far from the vertical center line than the first vertical side on the contour line, respectively.
Each of the two finger rests further includes
An inwardly recessed bottom wall,
A steeply inclined portion connecting the first vertical side and the bottom wall portion;
A gently inclined portion connecting the second vertical side and the bottom wall portion;
Including
The biaxial stretch blow-molded container , wherein the partition wall between the two finger-hanging portions is recessed inward from the flat surface . In claim 1,
A vertical axis height position where the two finger hanging portions are arranged is closer to a vertical axis gravity center position of the biaxially stretched blow-molded container at the time of full filling than a vertical axis height position of the peripheral rib. Biaxial stretch blow molded container. In claim 1 or 2 ,
A partition region that is flush with the flat surface is disposed in a region between the two finger-hanging portions and the peripheral rib, and an extension region that extends upwards flush with the partition wall includes the partition region. A biaxially stretched blow-molded container characterized by being divided into two and reaching the peripheral rib. In claim 3 ,
The peripheral rib has a central rib that protrudes outward from the concave surface of the peripheral rib on the longitudinal center line and that is recessed inward from the flat surface. container. In any one of Claims 1 thru | or 4 ,
The partition wall is provided with a recessed rib that is recessed inwardly than the partition wall and is shallower than the bottom wall portion of the two finger hanging portions, and both ends of the recessed rib communicate with the two finger hanging portions. A biaxially stretched blow-molded container. In any one of Claims 1 thru | or 5 ,
The trunk is
Two second side surface portions having a width narrower than each width of the two first side surface portions and facing each other;
Chamfered portions respectively provided at four corners where the both ends in the width direction of the two first side surface portions and the both end portions in the width direction of the two second side surface portions intersect,
Further comprising
The biaxially stretched blow-molded container, wherein a reduced pressure absorption panel is disposed below the two finger hooks on the two lower side surfaces.

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