Bottle

Abstract

To maintain a stable pouring posture even when pouring from a large capacity bottle.SOLUTION: In a bottle, a bottom wall portion 16 of a bottom 14 comprises a grounding portion 17 located at an outer peripheral edge part, and a recessed portion 18 recessed upward from an inner peripheral edge part of the grounding portion. A finger-hook recess 24 which is recessed upward and extends in a first direction X of a radial direction, is formed in a top wall 18a of the recessed portion, and on an inner surface defining the finger-hook recess, a plurality of concave curved surface portions 26 recessed in a second direction Y are formed in a row in the first direction on at least one of opposing surfaces 24a which face each other in the second direction perpendicular to the first direction of the radial direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a bottle. [Background technology]

[0002] 2. Description of the Related Art In some cases, a handle or grip portion as shown in Patent Document 1 below is provided on the body of a bottle having a large internal volume in order to make the bottle easier to hold. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4209296 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when a bottle with a large capacity is held only by its body and placed in a pouring position with its mouth facing downward, it is difficult to stabilize the bottle.

[0005] To provide a bottle that can stably maintain a pouring position with its mouth facing downward even if the bottle has a large capacity. [Means for solving the problem]

[0006] A bottle according to one embodiment of the present invention has a mouth, shoulder, body and bottom which are connected in this order from top to bottom along the bottle axial direction and are integrally formed from a synthetic resin material, and a bottom wall of the bottom has a grounding portion located at the outer peripheral edge and a recessed portion which is recessed upward from the inner peripheral edge of the grounding portion, and a finger hook recess is formed in the top wall of the recessed portion which is recessed upward and extends in a first radial direction, and on the inner surface defining the finger hook recess, at least one of opposing surfaces which face each other in a second radial direction perpendicular to the first radial direction has a plurality of concave curved surface portions which are recessed in the second direction and are formed in a row in the first direction.

[0007] A finger hook recess is formed in the top wall of the recessed portion, so that it is possible to insert one's fingers into the finger hook recess. When the bottle is in a pouring position with the mouth opening downward and the opposing surface of the finger hook recess facing vertically, by supporting the body or shoulder from below with one hand while hooking the fingers of the other hand on the opposing surface facing downward, a stable pouring position can be maintained even in the case of a bottle with a large capacity. Since a plurality of concave curved surface portions recessed in the second direction are formed in a line in the first direction on the surface facing the finger recess, it is possible for a finger inserted into the finger recess to fit inside the concave curved surface portion, thereby providing gripping properties.

[0008] In the opposing surfaces, protruding portions located between the concave curved surface portions adjacent to each other in the first direction may face the protruding portion provided on the other opposing surface in the second direction.

[0009] Since the protruding portions provided on the pair of opposing surfaces face each other in the second direction, a finger can be easily inserted between the concave curved surface portions provided on the pair of opposing surfaces.

[0010] One of the protrusion portions may be provided in a central portion of the opposing surface in the first direction, and two of the concave curved surface portions may be provided on each side of the opposing surface that sandwiches the central portion in the first direction in the first direction.

[0011] One protruding portion is provided in the center of the opposing surface in the first direction, and two concave curved portions are provided on each side of the opposing surface that sandwich the center in the first direction in the first direction. Therefore, when four fingers excluding the thumb are inserted into the finger hook recess, it becomes easier and natural to position the center in the width direction of the palm at the center in the first direction of the base, and the pouring posture of the bottle can be reliably maintained.

[0012] The maximum value of the size of the finger hook recess in the second direction may be equal to or smaller than an outer diameter of a cap attached to the mouth portion.

[0013] Since the maximum size of the finger hook recess in the second direction is less than the outer diameter of the cap attached to the mouth, even if carton cases containing many filled bottles stored side by side are stacked, the cap can be prevented from becoming embedded in the finger hook recess at the bottom of a bottle in a carton case stacked above, through the deformed carton case.

[0014] The shoulder portion comprises an upper shoulder portion extending radially outward as it moves downward from the lower end of the mouth portion, a lower shoulder portion extending radially inward as it moves upward from the upper end of the body portion, and a reduced diameter portion connecting the upper shoulder portion and the lower shoulder portion to each other and extending in the vertical direction, and the lower end of the upper shoulder portion may protrude radially outward from the reduced diameter portion.

[0015] Since the shoulder portion is provided with a reduced diameter portion, it becomes easier to grip the reduced diameter portion, and when the bottle is in a pouring position, it becomes possible to grip and support the reduced diameter portion with one hand while inserting the fingers of the other hand into the finger-hook recess and hooking it on the opposing surface facing downward, so that a stable pouring position can be reliably maintained even with a bottle with a large capacity. When the bottle is in an upright position, it is possible to support the underside of the lower end of the upper shoulder with the hand gripping the reduced diameter portion, making it easy to lift even a bottle with a large capacity. Since such a reduced diameter portion is provided on the shoulder, it is possible to eliminate the need to provide a handle or grip portion on the body as in the past to make bottles with large contents easier to hold, making it easy to reduce the weight of bottles with large contents.

[0016] A pair of reinforcing recesses may be formed on a top wall of the recess, the reinforcing recesses being provided on both sides of the finger hook recess in the second direction.

[0017] A pair of reinforcing recesses are formed on the top wall of the recessed portion, on both sides of the finger hook recess in the second direction, thereby preventing the top wall or ground portion of the recessed portion from bulging outward toward the outside of the bottle when the contents are filled, which is known as bottoming out.

[0018] A top wall of the recess may be formed with an annular recess which surrounds the finger hook recess from the radially outer side when viewed from below and becomes shallower radially outward.

[0019] Since an annular recess is formed in the top wall of the recessed portion, when the bottle is held in a pouring position and a finger is inserted into the finger-hook recess and hooked onto the opposing surface facing downward, the upper part of the top wall of the recessed portion, which is located between the opposing surface on which the finger is hooked and the annular recess, bends upward as the annular recess deforms due to its own weight, allowing the fingertips inserted into the finger-hook recess to dig upward into the opposing surface and be securely hooked. Effect of the Invention

[0020] According to one aspect of the present invention, even in the case of a bottle with a large capacity, the pouring position with the mouth facing downward can be stably maintained. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a side view of a bottle shown as a first embodiment. [Diagram 2] FIG. 2 is a bottom view of the bottle shown in FIG. [Diagram 3]FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 11 is a bottom view of a bottle shown as a second embodiment. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, a bottle according to a first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the bottle 1 of this embodiment has a mouth portion 11, a shoulder portion 12, a body portion 13 and a bottom portion 14, and is generally configured such that these portions 11 to 14 are connected together in this order with their respective central axes positioned on a common axis.

[0023] Hereinafter, the common axis will be referred to as the bottle axis O, the side of the mouth 11 along the bottle axis O will be referred to as the upper side, the side of the bottom 14 along the bottle axis O will be referred to as the lower side, the direction along the bottle axis O will be referred to as the up-down direction, the direction that intersects the bottle axis O when viewed from the up-down direction will be referred to as the radial direction, and the direction that rotates around the bottle axis O when viewed from the up-down direction will be referred to as the circumferential direction.

[0024] The bottle 1 is formed integrally from a synthetic resin material by blow molding 4 of a preform formed into a cylindrical shape with a bottom by injection molding. The capacity of the bottle 1 is 1 L or more (for example, about 4 L). A cap 19 is attached to the mouth portion 11. The mouth 11, shoulder 12, body 13 and bottom 14 each have a circular cross-sectional shape perpendicular to the bottle axis O. However, the cross-sectional shape of each of the shoulder 12, body 13 and bottom 14 may be, for example, angular.

[0025] The shoulder portion 12 includes an upper shoulder portion 21, a lower shoulder portion 22, and a reduced diameter portion 23. Upper shoulder portion 21 extends radially outward as it extends downward from the lower end portion of mouth portion 11. A lower end portion 21a of upper shoulder portion 21 is formed into a curved surface shape that protrudes radially outward. The lower shoulder portion 22 extends radially inward from the upper end portion of the body portion 13 upward. The reduced diameter portion 23 connects the upper shoulder portion 21 and the lower shoulder portion 22 to each other and extends in the vertical direction. The lower end portion 21a of the upper shoulder portion 21 protrudes radially outward from the upper end portion of the reduced diameter portion 23. The size of the reduced diameter portion 23 in the vertical direction is larger than the thickness of an adult's finger. The reduced diameter portion 23 may extend straight in the vertical direction, may be inclined with respect to the vertical direction, or may be formed in a curved shape.

[0026] The body portion 13 includes an upper body portion 13b and a lower body portion 13c. The upper body 13b extends straight downward from the lower end of the shoulder 12. The lower body 13c is formed with a smaller diameter than the upper body 13b and extends straight downward from the lower end of the upper body 13b. A plurality of circumferential grooves 13a are provided in the upper body 13b and the lower body 13c at intervals in the vertical direction. Note that the circumferential grooves 13a do not necessarily have to be provided.

[0027] The bottom portion 14 is formed in a cup shape and includes a cylindrical heel portion 15 extending downward from the lower end of the body portion 13 and a bottom wall portion 16 closing the lower end opening of the heel portion 15. The heel portion 15 extends radially inward as it extends downward. The connection portion between the upper end of the heel portion 15 and the lower end of the body portion 13 is formed into a curved surface that protrudes radially outward. The bottom wall portion 16 has a ground contact portion 17 located on the outer circumferential edge portion, and a recessed portion 18 recessed upward from the inner circumferential edge portion of the ground contact portion 17.

[0028] The ground contact portion 17 and the recessed portion 18 are arranged coaxially with the bottle axis O. The grounding portion 17 is formed in a plate shape having a width in the radial direction, with the front and back surfaces facing the up-down direction, and continuously extending over the entire circumferential length. The grounding portion 17 may be formed in a strip shape that does not have a width in the radial direction. As shown in Fig. 4, the depressed portion 18 is formed in a cylindrical shape with a top wall 18a and a peripheral wall 18b. The peripheral wall 18b extends downward from the outer peripheral edge of the top wall 18a and is connected to the inner peripheral edge of the ground contact portion 17. The peripheral wall 18b extends radially inward as it extends upward. As shown in Fig. 2, the depressed portion 18 has a circular shape when viewed from below.

[0029] In this embodiment, a finger hook recess 24 and a pair of reinforcing recesses 25 are formed on top wall 18a of recess 18.

[0030] The finger hook recess 24 is recessed upward and extends in a first radial direction X. When viewed from the top-bottom direction, the bottle axis O is located in the center of the finger hook recess 24. The inner surface of the finger hook recess 24 has a pair of opposing surfaces 24a, a ceiling surface 24b, and a pair of end surfaces 24c. The pair of opposing surfaces 24a oppose each other in a second direction Y that is perpendicular to the first direction X in the radial direction. The ceiling surface 24b connects the upper ends of the pair of opposing surfaces 24a in the second direction Y. The ceiling surface 24b faces downward and has a rectangular shape that is long in the first direction X when viewed from below. The ceiling surface 24b has a curved shape that protrudes upward in a vertical cross-sectional view along the first direction X. The pair of end faces 24c face each other in the first direction X. The end faces 24c are connected to the inner peripheral edge of the ground contact portion 17 and extend radially inward as they go upward. The inclination angle of the end faces 24c in the up-down direction is smaller than the inclination angle of the peripheral wall 18b of the recessed portion 18 in the up-down direction. In other words, the end faces 24c rise from the inner peripheral edge of the ground contact portion 17 more steeply than the peripheral wall 18b.

[0031] A plurality of concave curved surface portions 26 recessed in the second direction Y are formed in the facing surface 24a of the finger hook recess 24 and connected in the first direction X. When viewed from below, the concave curved surface portions 26 have a curved shape that protrudes in the direction in which the groove width of the finger hook recess 24 widens. The concave curved surface portions 26 are formed over the entire length of the facing surface 24a in the up-down direction. The concave curved surface portions 26 are open downward. On the opposing surface 24a of the finger hook recess 24, the overhanging portion 27 located between the concave curved surface portions 26 adjacent to each other in the first direction X faces the overhanging portion 27 provided on the other opposing surface 24a in the second direction Y. When viewed from below, the overhanging portion 27 has a curved shape that protrudes in the direction in which the groove width of the finger hook recess 24 narrows. When viewed from below, the radius of curvature of the overhanging portion 27 is smaller than the radius of curvature of the concave curved surface portion 26. One overhanging portion 27 is provided in the center of the opposing surface 24a in the first direction X, and two concave curved surface portions 26 are provided on each side of the opposing surface 24a that sandwich the center in the first direction X in the first direction X. The maximum size of finger hook recess 24 in second direction Y is equal to or smaller than the outer diameter of cap 19 attached to mouth portion 11.

[0032] 2 and 3, the reinforcing recess 25 is provided on both sides of the finger hook recess 24 in the second direction Y. The reinforcing recess 25 is spaced apart from the finger hook recess 24 in the second direction Y. The depth of the reinforcing recess 25 is shallower than the depth of the finger hook recess 24. When viewed from below, the reinforcing recess 25 has a semicircular shape defined by a protruding arc portion facing the opposite side of the finger hook recess 24 along the second direction Y and a chord portion extending along the first direction X. The inner surface of the reinforcing recess 25 extends downward as it moves away from the finger hook recess 24 along the second direction Y, and is connected without any steps to the inner circumferential surface of the peripheral wall 18b of the recess 18. A plurality of concave curved surface portions recessed in the second direction Y may be formed in the first direction X in a portion of the inner surface of the reinforcing recess 25 that forms the chord portion when viewed from below. These concave curved surface portions may be formed to have the same size as the concave curved surface portion 26 formed on the opposing surface 24a, and may be shifted by half a pitch in the first direction X.

[0033] As described above, according to bottle 1 of this embodiment, finger hook recess 24 is formed in top wall 18a of recess 18, making it possible to insert fingers into finger hook recess 24. When bottle 1 is in a pouring position with mouth 11 opening downward and opposing surface 24a of finger hook recess 24 facing vertically, by supporting body 13 or shoulder portion 12 from below with one hand while hooking the fingers of the other hand on the downward facing opposing surface 24a, a stable pouring position can be maintained even for bottle 1 with a large capacity.

[0034] A plurality of concave curved surface portions 26 recessed in the second direction Y are formed on the opposing surface 24a of the finger recess 24 and connected in the first direction X, so that a finger inserted into the finger recess 24 can fit inside the concave curved surface portions 26, providing gripping properties. A pair of reinforcing recesses 25 are formed on both sides of the finger hook recess 24 in the second direction Y on the top wall 18a of the recessed portion 18, so that when the contents are filled, it is possible to prevent the top wall 18a of the recessed portion 18 or the ground portion 17 from bulging outward toward the outside of the bottle 1, which is known as bottoming out.

[0035] Since the protruding portions 27 provided on the pair of opposing surfaces 24a face each other in the second direction Y, a finger can be easily inserted between the concave curved surface portions 26 provided on the pair of opposing surfaces 24a.

[0036] One protruding portion 27 is provided in the center of opposing surface 24a in first direction X, and two concave curved surface portions 26 are provided on each side of opposing surface 24a that sandwich the center in first direction X in first direction X. Therefore, when four fingers excluding the thumb are inserted into finger-hook recess 24, the center in the width direction of the palm can be naturally positioned at the center of bottom 14 in first direction X, and the pouring posture of bottle 1 can be reliably and stably maintained.

[0037] Since the maximum value of the size of the finger hook recess 24 in the second direction Y is equal to or less than the outer diameter of the cap 19 attached to the mouth 11, even if carton cases in which many filled bottles 1 are stored side by side are stacked, the cap 19 can be prevented from being embedded in the finger hook recess 24 of the bottom 14 of the bottle 1 in the carton case stacked above, via the deformed carton case.

[0038] Since shoulder portion 12 is provided with reduced diameter portion 23, reduced diameter portion 23 can be easily gripped, and when bottle 1 is in a pouring position, it is possible to hold and support reduced diameter portion 23 with one hand while inserting the fingers of the other hand into finger hook recess 24 and hooking it on opposing surface 24a facing downward, so that even with bottle 1 having a large capacity, a stable pouring position can be reliably maintained. With the bottle 1 in an upright position, it is possible to support the underside of the lower end portion 21a of the upper shoulder portion 21 with the hand gripping the reduced diameter portion 23, and even a bottle 1 with a large capacity can be easily lifted. Since the shoulder portion 12 is provided with such a reduced diameter portion 23, it is possible to eliminate the need to provide a handle or grip portion on the body portion 13 as in the past to make the bottle 1 with a large content volume easier to hold, and it is possible to easily reduce the weight of the bottle 1 with a large content volume.

[0039] Next, a bottle 2 according to a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described.

[0040] In bottle 2 of this embodiment, an annular recess 31 is formed in top wall 18a of recess 18. When viewed from below, this annular recess 31 surrounds finger hook recess 24 from the radially outer side and becomes shallower as it extends radially outward. Annular recess 31 is recessed upward, and its ceiling surface extends downward as it extends radially outward. The radial inner end of the annular recess 31 is located above the lower surface of the top wall 18a. As shown in Fig. 6, the radial inner end of the annular recess 31, the portions located at both ends in the first direction X, are continuous with the lower end of the end surface 24c of the finger-hook recess 24. The radial outer end of the annular recess 31 is located at the same position in the up-down direction as the lower surface of the top wall 18a, and is continuous with the upper end of the peripheral wall 18b of the recess 18. The both ends of the annular recess 31 in the first direction X face each other in the first direction X through the inside of the finger-hook recess 24. 6, the inclination angle of the ceiling surface of the annular recess 31 relative to the vertical direction is smaller than the inclination angle of the peripheral wall 18b of the recess 18 relative to the vertical direction. In the vertical cross section viewed in the first direction X, the length of the ceiling surface of the annular recess 31 is longer than the length of the peripheral wall 18b of the recess 18. In the illustrated example, ceiling surface 24b of finger hook recess 24 extends straight along first direction X in a vertical cross section along first direction X. End surface 24c of finger hook recess 24 extends radially outward as it extends downward in a vertical cross section along first direction X, and presents a concave curved shape that is recessed radially outward.

[0041] As described above, in bottle 2 according to this embodiment, annular recess 31 is formed in top wall 18a of depressed portion 18. Therefore, when bottle 2 is placed in a pouring position as shown in FIG. 7 and a finger is inserted into finger-hook recess 24 and hooked on downward-facing opposing surface 24a, the upper portion of top wall 18a of depressed portion 18, which is located between opposing surface 24a on which the finger is hooked and annular recess 31, bends upward as shown by the two-dot chain line in FIG. 7 due to elastic deformation of annular recess 31 caused by its own weight, so that the fingertips inserted into finger-hook recess 24 can be securely hooked by digging upward into opposing surface 24a.

[0042] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0043] For example, the shoulder portion 12 does not need to have the reduced diameter portion 23 . The body 13 may be provided with a handle or grip. The concave curved surface portion 26 of one opposing surface 24a and the protruding portion 27 of the other opposing surface 24a may face each other in the second direction Y. The concave curved surface portion 26 may be formed on only one of the pair of opposing surfaces 24a, and the other opposing surface 24a may be, for example, a flat surface. In bottle 1, reinforcing recess 25 does not necessarily have to be formed in top wall 18a of recess 18. In the bottle 2, the annular recess 31 does not necessarily have to be formed in the top wall 18a of the recess 18.

[0044] The synthetic resin material from which the bottles 1 and 2 are made may be, for example, polyethylene terephthalate, polyethylene naphthalate, amorphous polyester, or a blend of these materials, and may be changed as appropriate. The bottles 1 and 2 are not limited to a single-layer structure, but may be a laminated structure having an intermediate layer, such as a layer made of a resin material having gas barrier properties, a layer made of recycled material, or a layer made of a resin material having oxygen absorbing properties.

[0045] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described embodiments and the above-described variations may be combined as appropriate.

[0046] For example, aspects of the present invention are as follows. <1> The mouth, shoulder, body, and bottom are arranged in this order from top to bottom along the bottle axial direction and are integrally formed from a synthetic resin material; The bottom wall of the bottom portion is A grounding portion located on an outer periphery; a recessed portion recessed upward from an inner peripheral edge portion of the ground contact portion, A finger hook recess is formed on a top wall of the recessed portion, the finger hook recess being recessed upward and extending in a first radial direction, A bottle, in which on an inner surface defining the finger hook recess, at least one of opposing surfaces that face each other in a second direction perpendicular to the first direction in the radial direction has a plurality of concave curved surface portions that are recessed in the second direction and are formed in a line in the first direction. <2> In the opposing surface, a protruding portion located between the concave curved surface portions adjacent to each other in the first direction faces the protruding portion provided on the other opposing surface in the second direction. <1> The bottle described in. <3> One of the protruding portions is provided at a center portion of the opposing surface in the first direction, The concave curved surface portion is provided on each of the opposing surfaces, two of which are provided on each side of the central portion in the first direction, the central portion being sandwiched in the first direction. <2> The bottle described in. <4> The maximum value of the size of the finger hook recess in the second direction is equal to or smaller than the outer diameter of the cap attached to the mouth portion. <1> from <3> Any one of the bottles listed. <5> The shoulder portion is an upper shoulder portion extending radially outward from a lower end portion of the mouth portion in a downward direction; a lower shoulder portion extending radially inward as it moves upward from the upper end portion of the body portion; a reduced diameter portion that connects the upper shoulder portion and the lower shoulder portion to each other and extends in the vertical direction, The lower end of the upper shoulder portion protrudes radially outward from the reduced diameter portion. <1> from <4> Any one of the bottles listed. <6> A pair of reinforcing recesses are formed on the top wall of the recessed portion, the reinforcing recesses being provided on both sides of the finger hook recess in the second direction. <1> from <5> Any one of the bottles listed. <7> A top wall of the recessed portion is formed with an annular recess that surrounds the finger hook recess from the radially outer side when viewed from below and has a depth that becomes shallower toward the radially outer side. <1> from <5> Any one of the bottles listed. [Explanation of symbols]

[0047] 1 or 2 bottles 11 Mouth 12 Shoulder 13 Torso 14 Bottom 16 Bottom wall 17 Grounding part 18 Depression 18a Top wall 19 Cap 21 Upper shoulder 21a Lower end 22 Lower shoulder 23 Reduced diameter part 24 Finger recess 24a Opposite side 25 Reinforcement recess 26 Concave curved part 27 Overhang 31 Annular recess O Bottle stem X 1st direction Y Second direction

Claims

1. The mouth, shoulder, body, and bottom are arranged in this order from top to bottom along the bottle axial direction and are integrally formed from a synthetic resin material; The bottom wall of the bottom portion is A grounding portion located on an outer periphery; a recessed portion recessed upward from an inner peripheral edge portion of the ground contact portion, A finger hook recess is formed on a top wall of the recessed portion, the finger hook recess being recessed upward and extending in a first radial direction, A bottle, in which on an inner surface defining the finger hook recess, at least one of opposing surfaces that face each other in a second direction perpendicular to the first direction in the radial direction has a plurality of concave curved surface portions that are recessed in the second direction and are formed in a line in the first direction.

2. The bottle according to claim 1 , wherein on the opposing surfaces, a protrusion portion located between adjacent concave curved surface portions in the first direction faces a protrusion portion provided on the other opposing surface in the second direction.

3. One of the protruding portions is provided at a center portion of the opposing surface in the first direction, The bottle according to claim 2 , wherein the concave curved surface portion is provided on each of the opposing surfaces, two on each side of the central portion in the first direction.

4. 4. The bottle according to claim 1, wherein a maximum value of the size of the finger hook recess in the second direction is equal to or smaller than an outer diameter of a cap attached to the mouth portion.

5. The shoulder portion is an upper shoulder portion extending radially outward from a lower end portion of the mouth portion in a downward direction; a lower shoulder portion extending radially inward as it moves upward from the upper end portion of the body portion; a reduced diameter portion that connects the upper shoulder portion and the lower shoulder portion to each other and extends in the vertical direction, 4. The bottle according to claim 1, wherein a lower end of the upper shoulder portion protrudes radially outward from the reduced diameter portion.

6. The bottle according to claim 1 , wherein a pair of reinforcing recesses are formed on a top wall of the recessed portion on either side of the finger hook recess in the second direction.

7. A bottle as described in any one of claims 1 to 3, wherein a ring-shaped recess is formed in the top wall of the recessed portion, surrounding the finger hook recess from the radially outer side when viewed from below and becoming shallower in depth as it extends radially outward.

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