Discharge container

Abstract

To provide a discharge container capable of suppressing the outer diameter of a mounting cylinder; visually confirming, from outside, an abutment surface or the like for determining the relative positions of a bottle and a nozzle member along the circumferential direction; and suppressing the complexity of a mold structure for forming the nozzle member.SOLUTION: The discharge container includes a bottle 10, an attachment tube 21 threaded onto a mouth part 11 of the bottle, and a nozzle member 20 having a discharge hole 24 for discharging the contents. The bottle has a capped cylindrical neck part 12 that projects radially outward from the lower end of the mouth part and extends downward. The upper surface of the top wall of the neck part is brought into contact with or close proximity to the lower end opening edge of the attachment tube. An abutment surface 31, which faces a tightening side X along the circumferential direction, and a first engagement part 32 are provided in this order toward the tightening side along the circumferential direction. On the upper surface of the top wall of the neck part, an abutting surface 33, which faces a loosening side Y along the circumferential direction and abuts the abutment surface in the circumferential direction, and a second engagement part 34, which engages with the first engagement part, are arranged in this order toward the tightening side along the circumferential direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a discharge container.

Background Art

[0002] Conventionally, as shown in Patent Document 1 below, for example, a bottle having at least a mouth portion and a body portion, a mounting cylinder screwed to the mouth portion, and a nozzle member having a discharge hole for the content are provided, and a positioning portion for determining a relative position along the circumferential direction of the bottle and the nozzle member is provided between the outer peripheral surface of the mouth portion and the inner peripheral surface of the mounting cylinder. A discharge container is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when a positioning portion is provided on the inner peripheral surface of the mounting cylinder, not only is the positioning portion covered by the mounting cylinder and cannot be visually recognized from the outside, but it becomes difficult to suppress the outer diameter of the mounting cylinder, and the mold structure for molding the nozzle member may become complicated.

[0005] The present invention provides a discharge container capable of suppressing the outer diameter of the mounting cylinder, visually recognizing a butting surface or the like that determines the relative position along the circumferential direction of the bottle and the nozzle member from the outside, and suppressing the complication of the mold structure for molding the nozzle member.

Means for Solving the Problems

[0006] The discharge container according to one aspect of the present invention includes a bottle having at least a mouth portion and a body portion, a mounting cylinder screwed to the mouth portion, and a nozzle member having a discharge hole for the content. The bottle has a toped cylindrical neck portion that projects radially outward from the lower end portion of the mouth portion and extends downward. On the lower end opening edge of the mounting cylinder, an abutting surface against which the upper surface of the top wall of the neck portion abuts or is close to and faces the tightening side along the circumferential direction, and a first engaging portion are provided in this order toward the tightening side along the circumferential direction. On the upper surface of the top wall of the neck portion, a butting surface that faces the loosening side along the circumferential direction and abuts against the abutting surface in the circumferential direction, and a second engaging portion that engages with the first engaging portion are provided in this order toward the tightening side along the circumferential direction.

[0007] When the mounting cylinder is brought to the end portion on the tightening side along the circumferential direction with respect to the mouth portion, the abutting surface of the mounting cylinder abuts against the butting surface of the neck portion in the circumferential direction, and the movement of the nozzle member along the tightening side in the circumferential direction with respect to the bottle is restricted. At this time, the first engaging portion of the mounting cylinder engages with the second engaging portion of the neck portion, thereby suppressing the movement of the nozzle member along the loosening side in the circumferential direction with respect to the bottle. From the above, the relative position along the circumferential direction of the bottle and the nozzle member is determined. The butting surface and the like for determining the relative position along the circumferential direction of the bottle and the nozzle member are provided on the lower end opening edge of the mounting cylinder and the upper surface of the top wall of the neck portion, rather than between the outer peripheral surface of the mouth portion and the inner peripheral surface of the mounting cylinder, and are exposed to the outside. Therefore, these butting surfaces and the like can be visually recognized from the outside, the outer diameter of the mounting cylinder can be suppressed, and the complication of the mold structure for molding the nozzle member can be suppressed.

[0008] The body portion is formed to be elastically deformable and has a flat shape having a major axis and a minor axis that intersect each other on the central axis of the body portion when viewed from the vertical direction. The discharge hole may open in the major axis direction in which the major axis extends.

[0009] Since the body portion is formed to be elastically deformable and has a flat shape when viewed from above and below, and the discharge hole opens in the major axis direction, when discharging the contents, with the discharge hole facing downward, for example, by pinching and pressing the body portion in the minor axis direction with a finger, it becomes possible to discharge the contents with the hand in a natural posture, and a discharge container with excellent operability can be obtained. Therefore, while it is possible to determine the relative position along the circumferential direction of the bottle and the nozzle member, it is also possible to suppress the outer diameter of the mounting cylinder, visually recognize the abutting surface, etc. from the outside, and suppress the complication of the mold structure for molding the nozzle member, and the above-described effects are remarkably achieved.

[0010] The lower end opening edge of the mounting cylinder extends downward as it goes from the first engaging portion toward the tightening side along the circumferential direction, and the upper surface of the top wall of the neck portion extends downward as it goes from the second engaging portion toward the tightening side along the circumferential direction. The abutting surface, the first engaging portion, the abutting surface, and the second engaging portion are provided in plural at equal intervals in the circumferential direction. The inclination angle with respect to the circumferential direction in the portion located between the first engaging portion and the abutting surface adjacent to the first engaging portion on the tightening side along the circumferential direction among the lower end opening edges of the mounting cylinder, and the inclination angle with respect to the circumferential direction in the portion located between the second engaging portion and the abutting surface adjacent to the second engaging portion on the tightening side along the circumferential direction among the upper surfaces of the top wall of the neck portion may be less than or equal to the lead angle of the male thread formed on the outer peripheral surface of the mouth portion and the female thread formed on the inner peripheral surface of the mounting cylinder, respectively.

[0011] Since the above-described inclination angle is less than or equal to the lead angle of the male thread formed on the outer peripheral surface of the mouth portion and the female thread formed on the inner peripheral surface of the mounting cylinder, respectively, when the mounting cylinder is rotated in the loosening side along the circumferential direction with respect to the mouth portion, by greatly raising the mounting cylinder with respect to the mouth portion, it is possible to make it difficult for the lower end opening edge of the mounting cylinder to be caught by the upper surface of the top wall of the neck portion.

[0012] The first engaging portion protrudes downward from the lower end opening edge of the mounting cylinder, the second engaging portion is recessed downward from the upper surface of the top wall of the neck portion, and among the upper surface of the top wall of the neck portion, the upper end portion of the abutting surface and the second engaging portion adjacent to the abutting surface on the tightening side along the circumferential direction, the portion located between them may extend upward as it goes toward the tightening side along the circumferential direction.

[0013] Among the upper surface of the top wall of the neck portion, the portion located between the upper end portion of the abutting surface and the second engaging portion adjacent to the abutting surface on the tightening side along the circumferential direction (hereinafter referred to as the riding-up surface) extends upward as it goes toward the tightening side along the circumferential direction. Therefore, when the mounting cylinder is brought to the end portion on the tightening side along the circumferential direction with respect to the mouth portion and the first engaging portion of the mounting cylinder is engaged with the second engaging portion of the neck portion, the first engaging portion is caught by the riding-up surface on the upper surface of the top wall of the neck portion and can be smoothly slid along the tightening side in the circumferential direction with less riding-up.

Advantages of the Invention

[0014] According to the above aspect of the present invention, a discharge container capable of suppressing the outer diameter of the mounting cylinder, visually recognizing from the outside the abutting surface and the like that determine the relative position along the circumferential direction of the bottle and the nozzle member, and suppressing the complication of the mold structure for molding the nozzle member can be obtained.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2A

Figure 2B

Figure 3

Embodiments for Carrying Out the Invention

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the discharge container 1 of the present embodiment includes a bottle 10 and a nozzle member 20.

[0017] The bottle 10 includes a mouth portion 11, a neck portion 12, and a bottomed cylindrical body portion 13. The mouth portion 11 is formed in a cylindrical shape. A male thread is formed on the outer peripheral surface of the mouth portion 11. Hereinafter, among the directions along the central axis O1 of the mouth portion 11, the side where the mouth portion 11 is located with respect to the body portion 13 is referred to as the upper side, the side where the body portion 13 is located with respect to the mouth portion 11 is referred to as the lower side, and the direction along the central axis O1 is referred to as the vertical direction. The direction intersecting the central axis O1 when viewed from the vertical direction is referred to as the radial direction, and the direction orbiting around the central axis O1 when viewed from the vertical direction is referred to as the circumferential direction.

[0018] The neck portion 12 is formed in a toped cylindrical shape that protrudes radially outward from the lower end portion of the mouth portion 11 and extends downward. The body portion 13 is formed to be elastically deformable and is formed in a bottomed cylindrical shape extending in the vertical direction. As shown in FIG. 2A, the body portion 13 has a flat shape having a major axis L1 and a minor axis L2 that intersect each other on the central axis O2 of the body portion 13 when viewed from the vertical direction. The central axis O2 of the body portion 13 is radially separated from the central axis O1 of the mouth portion 11. In the illustrated example, the central axis O2 of the body portion 13 is located on the major axis L1.

[0019] Hereinafter, the direction in which the major axis L1 extends when viewed from the vertical direction is referred to as the major axis direction, and the direction in which the minor axis L2 extends when viewed from the vertical direction is referred to as the minor axis direction. Among the major axis directions, the side where the central axis O2 of the body portion 13 is separated from the central axis O1 of the mouth portion 11 is referred to as the front side, and the opposite side is referred to as the rear side.

[0020] The nozzle member 20 includes a mounting cylinder 21, a nozzle cylinder 22, and a vertical supply cylinder 23. The mounting cylinder 21 is formed in a toped cylindrical shape having a top wall 21a and a peripheral wall 21b, and is screwed to the mouth portion 11. On the inner peripheral surface of the lower part of the peripheral wall 21b, a female thread that engages with the male thread formed on the mouth portion 11 is formed. The upper surface of the top wall 12a of the neck portion 12 abuts or is close to the lower end opening edge of the peripheral wall 21b of the mounting cylinder 21. The vertical supply cylinder 23 extends downward from the top wall 21a of the mounting cylinder 21. The central axis of the vertical supply cylinder 23 is radially separated from the central axis O1 of the mouth portion 11. In the illustrated example, the central axis of the vertical supply cylinder 23 is located behind the central axis O1 of the mouth portion 11 and on the major axis L1. The nozzle cylinder 22 extends forward from the upper end portion of the vertical supply cylinder 23. The nozzle cylinder 22 protrudes forward from the peripheral wall 21b of the mounting cylinder 21. A discharge hole 24 for the content is formed in the nozzle cylinder 22.

[0021] The discharge hole 24 is formed at the front end portion of the nozzle cylinder 22 and opens forward. At the center portion of the front end portion of the nozzle cylinder 22, a boss portion 22a protruding forward is formed. A plurality of discharge holes 24 are provided at intervals around the boss portion 22a. The discharge holes 24 penetrate not only the front end portion of the nozzle cylinder 22 in the front-rear direction along the major axis direction but also in the radial direction in the nozzle cylinder 22. The discharge hole 24 is a long hole extending in the front-rear direction.

[0022] An opening / closing member 25 is provided in the nozzle cylinder 22 so as to be movable in the front-rear direction. The opening / closing member 25 is formed in a horizontally toped cylindrical shape with the front end closed and the rear end open. A through hole 25a is formed at the center portion of the front end wall of the opening / closing member 25. The boss portion 22a of the nozzle cylinder 22 is detachably fitted into the through hole 25a. As the opening / closing member 25 moves back and forth, the boss portion 22a is detached from and attached to the through hole 25a, thereby switching the communication between the discharge hole 24 and the outside through the through hole 25a and the blocking thereof. On the front end wall of the opening / closing member 25, there are provided regulating protrusions 25b that protrude rearward, are inserted into the discharge holes 24, and regulate the relative rotation of the opening / closing member 25 and the nozzle cylinder 22. The regulating protrusions 25b are provided in plurality at intervals around the through holes 25a and are respectively inserted into the plurality of discharge holes 24.

[0023] Here, a foaming member 26 is fitted in the vertical supply cylinder 23. The foaming member 26 has meshes disposed at both upper and lower end openings of a cylinder extending in the vertical direction. In the illustrated example, the foaming member 26 is divided into two parts vertically. The foaming member 26 is provided in a portion of the vertical supply cylinder 23 that is located below the connecting portion with the rear end portion of the nozzle cylinder 22. A connecting cylinder member 27 extending downward is connected to the vertical supply cylinder 23. The connecting cylinder member 27 is formed with an air supply hole 27a that communicates the inside of the bottle 10 with a portion of the vertical supply cylinder 23 that is located below the foaming member 26. The upper end portion of the suction pipe 28 is fitted in the connecting cylinder member 27 in a liquid-tight manner. The upper end portion of the suction pipe 28 is located below the air supply hole 27a. The lower end portion of the suction pipe 28 is located inside the lower end portion of the body portion 13 of the bottle 10.

[0024] When the body portion 13 is pressed inward in the radial direction, the content in the bottle 10 is supplied through the suction pipe 28 to a gas-liquid mixing chamber 23a that is located below the foaming member 26 and above the upper end portion of the suction pipe 28 in the vertical supply cylinder 23, and the air in the bottle 10 is supplied through the air supply hole 27a. Thereby, a gas-liquid mixture in which the content and the air are mixed is generated in the gas-liquid mixing chamber 23a, and this gas-liquid mixture passes through the foaming member 26, inside the nozzle cylinder 22, the discharge holes 24, and the through holes 25a in this order and is discharged to the outside. Note that the gas-liquid mixture becomes a foam in the gas-liquid mixing chamber 23a, and the foam quality is adjusted by passing through the foaming member 26.

[0025] And in the present embodiment, the upper surface of the top wall 12a of the neck portion 12 abuts or is close to the lower end opening edge of the mounting cylinder 21. At the lower end opening edge of the mounting cylinder 21, an abutting surface 31 facing the tightening side X along the circumferential direction and a first engaging portion 32 are provided in this order toward the tightening side X along the circumferential direction. On the upper surface of the top wall 12a of the neck portion 12, an abutting surface 33 facing the loosening side Y along the circumferential direction and abutting against the abutting surface 31 in the circumferential direction, and a second engaging portion 34 engaging with the first engaging portion 32 are provided in this order toward the tightening side X along the circumferential direction.

[0026] The lower end opening edge of the mounting cylinder 21 extends downward as it goes from the first engaging portion 32 toward the tightening side X along the circumferential direction. The upper surface of the top wall 12a of the neck portion 12 extends downward as it goes from the second engaging portion 34 toward the tightening side X along the circumferential direction. Here, a plurality of the abutting surface 31, the first engaging portion 32, the abutting surface 33, and the second engaging portion 34 are provided at equal intervals in the circumferential direction. The inclination angle with respect to the circumferential direction in a portion (hereinafter referred to as the upper slope portion 21c) located between the first engaging portion 32 and the abutting surface 31 adjacent to the first engaging portion 32 on the tightening side X along the circumferential direction among the lower end opening edge of the mounting cylinder 21, and the inclination angle with respect to the circumferential direction in a portion (hereinafter referred to as the lower slope portion 12b) located between the second engaging portion 34 and the abutting surface 33 adjacent to the second engaging portion 34 on the tightening side X along the circumferential direction among the upper surface of the top wall 12a of the neck portion 12 are the same as each other. These inclination angles are equal to or less than the lead angles of the male thread formed on the outer peripheral surface of the mouth portion 11 and the female thread formed on the inner peripheral surface of the mounting cylinder 21, respectively.

[0027] The first engaging portion 32 protrudes downward from the lower end opening edge of the mounting cylinder 21, and the second engaging portion 34 is recessed downward from the upper surface of the top wall 12a of the neck portion 12. Note that the first engaging portion 32 may be recessed upward from the lower end opening edge of the mounting cylinder 21, and the second engaging portion 34 may protrude upward from the upper surface of the top wall 12a of the neck portion 12.

[0028] Among the upper surfaces of the top wall 12a of the head portion 12, the portion located between the upper end portion of the abutting surface 33 and the second engaging portion 34 adjacent to the abutting surface 33 on the tightening side X along the circumferential direction (hereinafter referred to as the rising surface 12c) extends upward as it goes toward the tightening side X along the circumferential direction. The inclination angle of the rising surface 12c with respect to the circumferential direction is the same as the inclination angle of the lower slope portion 12b with respect to the circumferential direction. Note that these inclination angles may be made different from each other. Among the opening peripheral edge portions of the second engaging portion 34 on the upper surface of the top wall 12a of the head portion 12, the portion located on the tightening side X along the circumferential direction and continuous with the lower slope portion 12b is located below the portion located on the loosening side Y along the circumferential direction and continuous with the rising surface 12c. The circumferential sizes of the rising surface 12c, the first engaging portion 32, and the second engaging portion 34 are equal to each other.

[0029] As described above, according to the discharge container 1 of the present embodiment, when the mounting cylinder 21 reaches the end portion on the tightening side X along the circumferential direction with respect to the mouth portion 11, the abutting surface 31 of the mounting cylinder 21 abuts against the abutting surface 33 of the head portion 12 in the circumferential direction, and the movement of the nozzle member 20 with respect to the bottle 10 toward the tightening side X along the circumferential direction is restricted. At this time, by the first engaging portion 32 of the mounting cylinder 21 engaging with the second engaging portion 34 of the head portion 12, the movement of the nozzle member 20 with respect to the bottle 10 toward the loosening side Y along the circumferential direction is suppressed. From the above, the relative positions of the bottle 10 and the nozzle member 20 along the circumferential direction are determined.

[0030] The abutting surface 33 and the like that determine the relative positions of the bottle 10 and the nozzle member 20 along the circumferential direction are provided not between the outer peripheral surface of the mouth portion 11 and the inner peripheral surface of the mounting cylinder 21, but on the lower end opening edge of the mounting cylinder 21 and the upper surface of the top wall 12a of the head portion 12, and are exposed to the outside. Therefore, these abutting surfaces 33 and the like can be visually recognized from the outside, the outer diameter of the mounting cylinder 21 can be suppressed, and the complication of the mold structure for molding the nozzle member 20 can be suppressed.

[0031] Since the body portion 13 is formed to be elastically deformable and has a flat shape when viewed from the vertical direction, and the discharge hole 24 opens forward (in the major axis direction), when discharging the content, with the discharge hole 24 facing downward for example, by pinching and pressing the body portion 13 in the minor axis direction with a finger, it becomes possible to discharge the content with the hand in a natural posture, and a discharge container 1 with excellent operability can be obtained. Therefore, while it is possible to determine the relative positions along the circumferential direction of the bottle 10 and the nozzle member 20, it is also possible to suppress the outer diameter of the mounting cylinder 21, visually recognize the abutting surface 33, etc. from the outside, and suppress the complication of the mold structure for molding the nozzle member 20, and the above-described operational effects are significantly achieved.

[0032] Since the above-described inclination angle is equal to or less than the lead angles of the male thread formed on the outer peripheral surface of the mouth portion 11 and the female thread formed on the inner peripheral surface of the mounting cylinder 21, when the mounting cylinder 21 is rotated in the loosening side Y along the circumferential direction with respect to the mouth portion 11, by greatly raising the mounting cylinder 21 with respect to the mouth portion 11, it is possible to make it difficult for the lower end opening edge of the mounting cylinder 21 to be caught by the upper surface of the top wall 12a of the neck portion 12.

[0033] Since the rising surface 12c on the upper surface of the top wall 12a of the neck portion 12 extends upward as it goes toward the tightening side X along the circumferential direction, when the mounting cylinder 21 is brought to the end on the tightening side X along the circumferential direction with respect to the mouth portion 11 and the first engaging portion 32 of the mounting cylinder 21 is engaged with the second engaging portion 34 of the neck portion 12, the first engaging portion 32 can be caught less by the rising surface 12c on the upper surface of the top wall 12a of the neck portion 12 and can be smoothly slid along the tightening side X along the circumferential direction.

[0034] Note that the technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0035] For example, the lower end opening edge of the mounting cylinder 21 may extend straight in the circumferential direction toward the tightening side X along the circumferential direction from the first engaging portion 32, and the upper surface of the top wall 12a of the neck portion 12 may also extend straight in the circumferential direction toward the tightening side X along the circumferential direction from the second engaging portion 34. The inclination angle with respect to the circumferential direction in the upper slope portion 21c of the lower end opening edge of the mounting cylinder 21 and the inclination angle with respect to the circumferential direction in the lower slope portion 12b of the upper surface of the top wall 12a of the neck portion 12 may be made different from each other. These inclination angles may be made larger than the lead angles of the male thread formed on the outer peripheral surface of the mouth portion 11 and the female thread formed on the inner peripheral surface of the mounting cylinder 21, respectively. The rising surface 12c on the upper surface of the top wall 12a of the neck portion 12 may extend straight, for example, toward the tightening side X along the circumferential direction.

[0036] The abutting surface 31, the first engaging portion 32, the abutting surface 33, and the second engaging portion 34 may be provided one by one. In this configuration, the inclination angle with respect to the circumferential direction of the portion of the lower end opening edge of the mounting cylinder 21 that extends from the first engaging portion 32 toward the tightening side X along the circumferential direction, and the inclination angle with respect to the circumferential direction of the portion of the upper surface of the top wall 12a of the neck portion 12 that extends from the second engaging portion 34 toward the tightening side X along the circumferential direction may be made equal to or less than the lead angles of the male thread formed on the outer peripheral surface of the mouth portion 11 and the female thread formed on the inner peripheral surface of the mounting cylinder 21, respectively.

[0037] In addition, within the scope not departing from the gist of the present invention, it is possible to appropriately replace the components in the above-described embodiment with well-known components, and the above-described embodiment and the modified examples may be appropriately combined.

[0038] Aspects of the present invention are as follows, for example. <1> A bottle having at least a mouth portion and a body portion, A mounting cylinder screwed to the mouth portion, and a nozzle member having a discharge hole for the content, The bottle has a capped cylindrical neck portion that projects radially outward from the lower end portion of the mouth portion and extends downward. On the lower end opening edge of the mounting cylinder, there are provided an abutting surface against which the upper surface of the top wall of the head part abuts or is close to and faces the tightening side along the circumferential direction, and a first engaging part, which are provided in this order toward the tightening side along the circumferential direction. On the upper surface of the top wall of the head part, there are provided a butting surface facing the loosening side along the circumferential direction and abutting against the abutting surface in the circumferential direction, and a second engaging part engaging with the first engaging part, which are provided in this order toward the tightening side along the circumferential direction. The discharge container. <2> The barrel part is formed to be elastically deformable and has a flat shape having a major axis and a minor axis that intersect each other on the central axis of the barrel part when viewed from the vertical direction. The discharge hole opens in the major axis direction in which the major axis extends. The discharge container according to <1>. <3> The lower end opening edge of the mounting cylinder extends downward as it goes from the first engaging part toward the tightening side along the circumferential direction. The upper surface of the top wall of the head part extends downward as it goes from the second engaging part toward the tightening side along the circumferential direction. A plurality of the abutting surfaces, the first engaging parts, the butting surfaces, and the second engaging parts are provided at equal intervals in the circumferential direction. The inclination angle with respect to the circumferential direction in the portion located between the first engaging part and the abutting surface adjacent to the first engaging part on the tightening side along the circumferential direction of the lower end opening edge of the mounting cylinder, and The inclination angle with respect to the circumferential direction in the portion located between the second engaging part and the butting surface adjacent to the second engaging part on the tightening side along the circumferential direction of the upper surface of the top wall of the head part are Less than the lead angle of the male thread formed on the outer peripheral surface of the mouth part and the female thread formed on the inner peripheral surface of the mounting cylinder respectively. The discharge container according to <1> or <2>. <4> The first engaging part projects downward from the lower end opening edge of the mounting cylinder, and the second engaging part is recessed downward from the upper surface of the top wall of the head part. Of the upper surface of the top wall of the head portion, the portion located between the upper end portion of the abutting surface and the second engaging portion adjacent to the abutting surface on the tightening side along the circumferential direction extends upward as it goes toward the tightening side along the circumferential direction. The discharge container according to any one of <1> to <3> above.

Explanation of Signs

[0039] 1 Discharge container 11 Mouth portion 10 Bottle 12 Head portion 12b Lower slope portion 12c Upturned surface 13 Barrel portion 20 Nozzle member 21 Mounting cylinder 21c Upper slope portion 22 Nozzle cylinder 24 Discharge hole 31 Abutting surface 32 First engaging portion 33 Abutting surface 34 Second engaging portion L1 Major axis L2 Minor axis O1 Central axis of the mouth portion O2 Central axis of the barrel portion X Tightening side Y Loosening side

Claims

1. A bottle having at least a mouth portion and a body portion, a mounting cylinder screwed onto the mouth portion, and a nozzle member having a discharge hole for the content, the bottle has a roofed cylindrical neck portion that projects radially outward from the lower end portion of the mouth portion and extends downward, on the lower end opening edge of the mounting cylinder, an abutting surface against which the upper surface of the roof wall of the neck portion abuts or is close to and faces the tightening side along the circumferential direction, and a first engaging portion are provided in this order toward the tightening side along the circumferential direction, on the upper surface of the roof wall of the neck portion, a butting surface facing the loosening side along the circumferential direction and abutting against the abutting surface in the circumferential direction, and a second engaging portion engaging with the first engaging portion are provided in this order toward the tightening side along the circumferential direction, a discharge container.

2. The body portion is formed to be elastically deformable and has a flat shape having a major axis and a minor axis that intersect each other on the central axis of the body portion when viewed from the vertical direction, the discharge hole opens in the major axis direction in which the major axis extends, the discharge container according to claim 1.

3. The lower end opening edge of the mounting cylinder extends downward as it goes from the first engaging portion toward the tightening side along the circumferential direction, the upper surface of the roof wall of the neck portion extends downward as it goes from the second engaging portion toward the tightening side along the circumferential direction, a plurality of the abutting surfaces, the first engaging portions, the butting surfaces, and the second engaging portions are provided at equal intervals in the circumferential direction, the inclination angle with respect to the circumferential direction in a portion located between the first engaging portion and the abutting surface adjacent to the first engaging portion on the tightening side along the circumferential direction among the lower end opening edge of the mounting cylinder, and the inclination angle with respect to the circumferential direction in a portion located between the second engaging portion and the butting surface adjacent to the second engaging portion on the tightening side along the circumferential direction among the upper surface of the roof wall of the neck portion are not more than the lead angles of the male thread formed on the outer peripheral surface of the mouth portion and the female thread formed on the inner peripheral surface of the mounting cylinder, the discharge container according to claim 1 or 2.

4. The first engaging portion projects downward from the lower end opening edge of the mounting cylinder, the second engaging portion is recessed downward from the upper surface of the roof wall of the neck portion, in the upper surface of the roof wall of the neck portion, a portion located between the upper end portion of the butting surface and the second engaging portion adjacent to the butting surface on the tightening side along the circumferential direction extends upward as it goes toward the tightening side along the circumferential direction, the discharge container according to claim 1 or 2.

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