Discharge container

Abstract

To take outside air into a container body.SOLUTION: There is provided a discharge container 1 including: a container body 2; a lower support part 3 disposed to be movable up and down; a cylinder 4 elastically deformable in a vertical direction; and a press-down head 5 having a discharge hole 96. Between a mounting opening of the container body and the lower support part, there are provided an outside air introduction path 60 which connects the inside of the container body to the outside and introduces outside air into the container body, and a seal part which switches between communication between the inside of the container body and the outside through the outside air introduction path and blocking the communication. When the press-down head is located at an upper end position P1, the seal part blocks the communication between the inside of the container body and the outside through the outside air introduction path, and when the lower support part moves downward from a standby position P2 in accordance with a downward movement of the press-down head from an upper end position, the communication between the inside of the container body and the outside through the outside air introduction path is permitted. Between the mounting opening and the lower support part, there is provided a restricting part 70 that restricts the lower support part from moving upward relative to the mounting opening beyond the standby position.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] 2. Description of the Related Art Conventionally, a discharge container as described in, for example, Patent Document 1 below has been known. This dispensing container comprises a container body containing the contents, a lower support part arranged at the mounting port of the container body, a cylinder arranged in the lower support part, the interior of which is capable of communicating with the container body and which is elastically deformable in the vertical direction, and a push-down head arranged on the cylinder and having a dispensing hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-105724 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a dispensing container that can take in outside air into the container body when dispensing the content. [Means for solving the problem]

[0005] (1) A discharge container according to the present invention includes a container body for accommodating a content and having an attachment opening, a lower support part disposed within the attachment opening so as to be movable up and down relative to the attachment opening, a cylinder combined with the lower support part, the interior of which is capable of communicating with the inside of the container body and is elastically deformable in the up and down direction, and a push-down head combined with the cylinder and having a discharge hole communicating with the inside of the cylinder, and between the attachment opening and the lower support part is an outside air introduction path that connects the inside of the container body with the outside and introduces outside air into the container body, and a switch that switches between communication between the inside of the container body and the outside through the outside air introduction path and blocking the communication. and a sealing portion which can be moved upward through the outside air inlet path when the press-down head is located at the ascending end position, the lower support portion being located at a standby position when the press-down head is located at the ascending end position, the sealing portion blocking communication between the inside of the container body and the outside through the outside air inlet path when the press-down head is located at the ascending end position, and allowing communication between the inside of the container body and the outside through the outside air inlet path when the lower support portion moves downward from the standby position as the press-down head moves downward from the ascending end position, and a regulating portion is provided between the mounting port portion and the lower support portion for regulating upward movement of the lower support portion relative to the mounting port portion beyond the standby position.

[0006] According to the discharge container of the present invention, in the initial state during product distribution, storage, etc., the push-down head is located at the upper end position and the lower support part is located at the standby position. Therefore, the seal part blocks communication between the inside of the container body and the outside through the outside air introduction path. Therefore, in the initial state, the outside air introduction path can be kept airtight, and inconveniences such as leakage of the contents in the container body through the outside air introduction path can be suppressed.

[0007] When discharging the contents, the press-down head is pressed down. This allows the press-down head to move downward from the raised end position, and the lower support part to move downward from the standby position. This allows the seal part to communicate between the inside of the container body and the outside through the outside air introduction path. In addition, the downward movement of the press-down head from the raised end position causes the cylinder to elastically deform so as to be compressed between the press-down head and the lower support part. This allows the inside of the cylinder to be pressurized, and the contents in the cylinder to be discharged to the outside through the discharge hole of the press-down head.

[0008] After the contents are discharged, when the pressing operation of the pressing head is released, the cylinder undergoes elastic restoration deformation and expands due to its own elastic restoring force. This causes the pressure inside the cylinder to drop and become negative. Therefore, the contents inside the container body can be sucked into the cylinder in preparation for the next discharge. Furthermore, outside air can be taken into the container body through the outside air introduction path. Therefore, the pressure drop inside the container body caused by the movement of the contents from inside the container body toward the cylinder can be eliminated. When the pressing head is displaced to the upper end position and the lower support part is positioned in the standby position, the seal part again blocks communication between the inside of the container body and the outside through the outside air introduction path.

[0009] In this way, outside air can be taken into the container body when the content is dispensed. Therefore, the container body is not limited to, for example, a double container, and various other containers can be used, making it an easy-to-use dispensing container that can be used for various purposes. In particular, a restricting portion is provided between the mounting opening portion and the lower support portion to restrict the upward movement of the lower support portion relative to the mounting opening portion, and restricts the lower support portion from moving upward beyond the standby position. Therefore, when the pressing head and the lower support portion are displaced to their original state after the content is discharged, the lower support portion can be appropriately positioned at the standby position. Therefore, the sealing portion can be used to maintain a state in which communication between the inside of the container body and the outside through the outside air introduction path is blocked.

[0010] In particular, even if an unintended external force such as an impact from being dropped acts during an assembly process including filling the contents or during product distribution, the lower support part can be prevented from moving upward beyond the standby position. If the lower support part moves upward beyond the standby position, the airtightness of the outside air introduction path provided by the seal part will be released, which may lead to leakage of the contents. However, since the restricting portion can be used to restrict the lower support portion from moving upward beyond the standby position, the sealing portion can maintain the airtightness of the outside air introduction path even if an unintended external force is applied. Therefore, leakage of the contents (liquid leakage, etc.) can be appropriately suppressed, resulting in a discharge container with improved reliability and quality.

[0011] (2) The mounting port portion may be provided with a guide tube extending upward and positioned within the press-down head, and an upper end of the guide tube may be provided with a regulating protrusion protruding radially outward, and a lower end of the press-down head may be formed with a locking protrusion protruding radially inward and adapted to engage with the regulating protrusion from below.

[0012] In this case, the push-down head can be moved up and down using the guide tube as a guide, and the push-down head can be stably pushed down with little rattle. This improves the ejection operability. Furthermore, by engaging the locking protrusion with the restricting protrusion from below, further upward movement of the push-down head can be restricted and the push-down head can be appropriately positioned at the upper end position. This makes it easy to use and convenient.

[0013] (3) The pressing head is rotatable around the container axis of the container body, and the guide tube is provided with a locking member that is positioned below the regulating protrusion and protrudes radially outward, and the locking member is formed with a locking groove that can accommodate the locking protrusion when the locking protrusion is engaged with the regulating protrusion, and the locking groove opens toward one circumferential direction around the container axis, and the locking protrusion is restricted from moving downward within the locking groove, and may be released from the locking groove as the pressing head rotates toward one circumferential direction, allowing downward movement.

[0014] In this case, when the locking protrusion is housed in the locking groove, the downward movement of the locking protrusion is restricted, so that the press-down head can be locked to restrict the press-down operation of the press-down head. Therefore, unintended downward movement of the press-down head can be restricted, and the press-down head can be positioned at the upper end position. Furthermore, since the lower support part can be positioned at the standby position, the seal part can be used to maintain the outside air introduction passage in an airtight state. To release the lock of the press head, rotate the press head in one circumferential direction. This causes the engaging protrusion to move circumferentially within the lock groove and disengage from the lock groove. This releases the lock of the press head and allows the press head to be pressed down. In addition, after the contents are discharged, the push-down head moves upward to return to its original position, and then the push-down head can be rotated in the other circumferential direction to accommodate the engagement protrusion in the lock groove and engage with the restriction protrusion from below. This allows the push-down head to be locked in a position at the upper end position and restricts the push-down operation. In particular, by a simple operation of simply rotating the press-down head, it is possible to easily switch between a locked state in which the press-down operation is restricted and an unlocked state in which the press-down operation is permitted.

[0015] (4) The cylinder may be formed in a bellows shape, with ridges protruding radially outward and valleys recessed radially inward, alternately connected in the vertical direction, and the ridges and valleys rotating around the container axis of the container body.

[0016] In this case, since the cylinder is formed in a bellows shape, it is easy to elastically deform, and the pressing operation of the pressing head can be performed with a light operating force, making it easy to use. Furthermore, the elastic recovery performance of the cylinder can be improved, and the pressing head and the lower support part can be quickly restored. Therefore, it is easy to use, for example, when the content is repeatedly discharged. Effect of the Invention

[0017] According to the dispensing container of the present invention, outside air can be taken into the container body when the content is dispensed. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a vertical cross-sectional view showing a first embodiment of a dispensing container according to the present invention. [Diagram 2] 2 is an enlarged longitudinal sectional view of a portion indicated by arrow A in FIG. [Diagram 3] 2 is an enlarged longitudinal sectional view of a portion indicated by an arrow B in FIG. [Figure 4] 2 is a vertical cross-sectional view showing a state in which the press-down head is pressed down from the state shown in FIG. 1 to release the airtightness of the outside air introduction path provided by the seal portion. [Diagram 5] 5 is a vertical cross-sectional view showing a state in which the press-down head is further pressed down from the state shown in FIG. 4 to cause the cylinder to elastically deform. [Figure 6] FIG. 4 is a vertical cross-sectional view showing a second embodiment of a dispensing container according to the present invention. [Figure 7] 7 is a development view of the guide tube as seen from the arrow C in FIG. 6. FIG. [Figure 8] 8 is a diagram showing a state in which the locking projection has been released from the lock groove, following the state shown in FIG. 7. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of a discharge container according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the dispensing container 1 of this embodiment includes a container body 2 in which the contents are contained, a cylindrical lower support part 3 which is combined with the container body 2, a cylindrical cylinder 4 which is combined with the lower support part 3, and a topped cylindrical push-down head 5 which is combined with the cylinder 4. The contents are not particularly limited, but examples include liquids such as disinfectants, cleaning agents, cosmetics, and shampoos.

[0020] The lower support part 3, the cylinder 4 and the push-down head 5 are arranged coaxially with the container axis O of the container body 2. Hereinafter, along the container axis O, the push-down head 5 is referred to as the upper side, and the container body 2 side is referred to as the lower side, and the direction along the container axis O is referred to as the up-down direction. Furthermore, in a plan view seen from the up-down direction, the direction intersecting the container axis O is referred to as the radial direction, and the direction going around the container axis O is referred to as the circumferential direction.

[0021] The state of the discharge container 1 before the discharge operation is referred to as the initial state. In the initial state, the cylinder 4 is in the most extended state in the discharge container 1 in the upright position, and the push-down head 5 is located at the upper end position P1. In the illustrated example, in the initial state, the downward movement of the push-down head 5 is restricted by the stopper 6.

[0022] (Container body) The container body 2 includes a container body 10 in which the contents are accommodated, and an attachment cap 20. The container body 10 is formed in a bottomed tubular shape with a mouth 11, a shoulder 12, a body (not shown), and a bottom (not shown) that are connected in this order from above. A male thread 14 is formed on the outer circumferential surface of the mouth 11 of the container body 10.

[0023] The mounting cap 20 is formed in a double cylindrical shape and is mounted on the mouth portion 11 of the container body 10 . The mounting cap 20 comprises a cap outer tube 21 that surrounds the mouth 11 of the container body 10 from the radial outside, a cap inner tube 22 that is arranged inside the mouth 11 of the container body 10, and a ring-shaped cap top wall 23 that radially connects the upper end of the cap outer tube 21 and the upper end of the cap inner tube 22.

[0024] The cap outer cylinder 21 is formed with a female thread portion 24 that screws into the male thread portion 14 formed on the mouth portion 11 of the container body 10. As a result, the entire attachment cap 20 is attached to the mouth portion 11 of the container body 10 by screwing. However, the method of attaching the mounting cap 20 is not limited to screwing, and it may be attached by, for example, undercut fitting.

[0025] The cap inner cylinder 22 is disposed inside the mouth portion 11 of the container body 10 with a slight gap between the cap inner cylinder 22 and the mouth portion 11. In the illustrated example, the cap inner cylinder 22 is formed to have the same length as the cap outer cylinder 21.

[0026] 1 and 2, a thick-walled portion 22a is formed at the lower end of the cap inner tube 22, protruding radially inward from the upper end of the cap inner tube 22. A first introduction groove 25 is formed on the inner circumferential surface of the thick-walled portion 22a, which is recessed radially inward and formed vertically. The first introduction groove 25 is formed, for example, in an arc shape in a plan view and opens downward. Therefore, the first introduction groove 25 communicates with the inside of the container body 10. Furthermore, a plurality of first introduction grooves 25 are formed at intervals in the circumferential direction. For example, four first introduction grooves 25 are formed at equal intervals in the circumferential direction.

[0027] An upwardly protruding sliding wall 26 is formed on the inner peripheral edge of the thick-walled portion 22a. The sliding wall 26 is formed in an annular shape that extends continuously around the entire circumference of the thick-walled portion 22a. A seal portion 27 is formed on the inner peripheral surface of the sliding wall 26, protruding radially inward and coming into contact with the lower support portion 3 from the radially outer side. In the illustrated example, the seal portion 27 is formed to protrude inward in the radial direction in a semi-spherical shape. The seal portion 27 plays a role in switching between communication between the inside of the container body 2 (inside of the container body 10) and the outside through an outside air introduction passage 60, which will be described later, and blocking the communication.

[0028] Furthermore, a guide tube 28 is disposed inside the thick-walled portion 22a with a gap between it and the thick-walled portion 22a. The guide tube 28 is formed so that its lower end is located at the same position as the lower end of the cap inner tube 22 and its upper end is located above the sliding wall 26. The lower end of the guide tube 28 and the lower end of the thick-walled portion 22a are connected in the radial direction via an annular flange portion 29. Therefore, the guide tube 28 and the flange portion 29 are integrally formed with the thick-walled portion 22a. Furthermore, the flange portion 29 is formed with a through hole 30 that passes through the flange portion 29 in the up-down direction. The through holes 30 are formed at intervals in the circumferential direction corresponding to the first introduction groove 25, and are formed in an arc shape in a plan view. In the illustrated example, the through holes 30 are formed so that their circumferential positions overlap with the first introduction groove 25 so as to communicate with the first introduction groove 25.

[0029] Furthermore, the upper end of the guide tube 28 and the upper end of the thick-walled portion 22a are connected in the radial direction via an annular flange portion (not shown). The flange portion has an insertion hole 31 that penetrates the flange portion in the up-down direction. A plurality of the insertion holes 31 are formed at intervals in the circumferential direction corresponding to the first introduction groove 25, and are formed in an arc shape in a plan view. The insertion hole 31 is formed so as to be located above the through hole 30 and to overlap with the through hole 30 in the up-down direction.

[0030] 1, the cap top wall 23 is in contact with the upper opening edge of the mouth 11 of the container body 2 from above via the packing 32. Therefore, the gap between the mouth 11 of the container body 10 and the cap top wall 23 is appropriately sealed. Furthermore, a guide tube 35 that extends upward and is disposed within the press-down head 5 is provided on the cap top wall 23. The guide tube 35 serves to guide the up and down movement of the press-down head 5.

[0031] A guide groove 36 that is recessed radially outward and extends vertically is formed on the inner peripheral surface of the guide tube 35. The guide groove 36 is formed over the entire length of the guide tube 35 and is formed to open upward. A plurality of guide grooves 36 are formed at intervals in the circumferential direction.

[0032] As shown in FIGS. 1 and 3, the guide tube 35 has an upper end formed with a restricting protrusion 37 and a positioning protrusion 38 that protrude radially outward. The restricting protrusion 37 and the positioning protrusion 38 are each formed in an annular shape extending around the entire circumference of the guide tube 35. The positioning protrusion 38 is disposed below the restricting protrusion 37 with a gap between them. The restricting protrusion 37 has a radial protrusion amount L1 greater than the radial protrusion amount L2 of the positioning protrusion 38.

[0033] The upper surface 37a of the restriction protrusion 37 is an inclined surface extending downward toward the outside in the radial direction, whereas the lower surface 37b of the restriction protrusion 37 is a flat surface perpendicular to the container axis O. The upper surface 38a of the positioning protrusion 38 is an inclined surface that extends downward as it moves radially outward. The lower surface 38b of the positioning protrusion 38 is an inclined surface that extends upward as it moves radially outward. In the illustrated example, the upper surface 38a of the positioning protrusion 38 is formed to be longer in the up-down direction than the lower surface 38b, and the inclination angle is formed to be gentler than the inclination angle of the lower surface 38b.

[0034] 1, the container body 2 is composed of a container body 10 and an attachment cap 20. Therefore, the attachment opening portion of the container body 2 is composed of the mouth portion 11 of the container body 10 and the attachment cap 20. However, the attachment cap 20 is not essential and may not be provided. In this case, the mouth part 11 of the container body 10 functions as the attachment mouth part of the container main body 2.

[0035] (Lower support part) 1, the lower support part 3 is disposed so as to be movable up and down relative to the mounting cap 20 which functions as the mounting opening part of the container body 2, and serves to support the cylinder 4 from below. The lower support part 3 includes a cup-shaped adapter member 40 and a flow path tube 50. In the illustrated example, the adapter member 40 and the flow path tube 50 are formed separately and are combined together integrally.

[0036] The adapter member 40 is formed in a double-tube shape and includes an outer tube 41, an inner tube 42 arranged radially inside the outer tube 41, and an annular connecting wall 43 that radially connects the upper end of the outer tube 41 and the upper end of the inner tube 42.

[0037] The outer cylinder 41 is disposed between the cap inner cylinder 22 and the guide cylinder 28. The outer cylinder 41 is disposed so that its upper end is located slightly below the cap top wall 23 and its lower end is located between the sliding wall 26 and the guide cylinder 28. At this time, the seal portion 27 formed on the sliding wall 26 tightly contacts and seals with the outer circumferential surface of the lower end of the outer cylinder 41 (see FIG. 2).

[0038] The inner cylinder 42 is disposed inside the guide cylinder 28 and extends downward further than the guide cylinder 28. As a result, the inner cylinder 42 is recessed further inside the container body 10 than the guide cylinder 28. The upper end of the inner cylinder 42 is disposed above the guide cylinder 28 and is located at the same height as the upper end of the outer cylinder 41.

[0039] A retaining tube 44 is formed at the lower end of the inner tube 42, further extending downward. A pipe 45 extending toward the bottom of the container body 10 is fitted into the retaining tube 44. The pipe 45 connects the inside of the lower support part 3 with the inside of the container body 10, and also plays a role in sucking up the contents in the container body 10 into the lower support part 3. However, the pipe 45 is not essential and may not be provided. Furthermore, a first annular valve seat 46 that protrudes radially inward is provided at the lower end of the inner cylinder 42. An inflow hole 47 for allowing the contents to flow in is formed inside the first valve seat 46.

[0040] The connecting wall 43 is disposed above the upper end of the guide cylinder 28 and faces the guide cylinder 28 from above with a gap therebetween.

[0041] The flow passage tube 50 includes a lower flow passage tube 51 that is fitted inside the adapter member 40 , and an upper flow passage tube 55 that is smaller in diameter than the lower flow passage tube 51 . The downstream passage tube 51 is fitted inside the inner tube 42 of the adapter member 40. An annular flange 52 protruding radially outward is formed at the upper end of the downstream passage tube 51. The flange 52 contacts the connecting wall 43 of the adapter member 40 from above.

[0042] The upper flow passage tube 55 is formed integrally with the lower flow passage tube 51 and extends upward beyond the lower flow passage tube 51. As a result, the upper flow passage tube 55 protrudes upward beyond the adapter member 40. A claw portion 56 protruding radially inward is provided at the upper end portion of the upper flow passage tube 55. Furthermore, a flow passage hole 57 is formed at the lower end of the upper flow passage tube 55 so as to penetrate the upper flow passage tube 55 in the radial direction. A plurality of the flow passage holes 57 are formed at intervals in the circumferential direction.

[0043] The lower support portion 3 configured as described above is capable of moving downward with respect to the attachment cap 20 as the press-down head 5 is pressed down. Specifically, when the press-down head 5 is located at the upper end position P1, the lower support part 3 is located at the standby position P2 shown in Fig. 1. When the press-down head 5 is pressed down and moves downward from the upper end position P1, a pressing force acts on the lower support part 3 via the cylinder 4, so that the lower support part 3 moves downward relative to the attachment cap 20. At this time, the lower support part 3 is capable of moving downward by the distance (stroke) between the connecting wall 43 and the guide cylinder .

[0044] As a result, the lower support part 3 moves downward from the standby position P2 shown in Fig. 1 while the outer tube 41 enters the insertion hole 31 of the attachment cap 20 as shown in Fig. 4. At this time, the outer tube 41 moves stably while being guided by the guide tube 28. Then, as the lower support part 3 moves further downward, the connecting wall 43 comes into contact with the guide tube 28 from above as shown in Fig. 5. This restricts the lower support part 3 from moving further downward. Furthermore, the outer tube 41 comes into contact with the flange part 29 of the attachment cap 20 from above, thereby restricting further downward movement. Therefore, the guide tube 28 and the flange portion 29 serve to restrict the downward movement of the lower support portion 3.

[0045] 1 and 2, a second introduction groove 48 is formed on the outer peripheral surface of the outer tube 41 of the adapter member 40. The second introduction groove 48 is formed in a vertically long shape and recessed radially inward on the outer tube 41 at the standby position P2 shown in FIG. 1 except for the lower end portion with which the seal portion 27 is in contact, and is formed to open upward. This second inlet groove 48 and the first inlet groove 25 formed in the mounting cap 20 are provided between the mounting opening portion and the lower support portion 3, and connect the inside of the container body 10 to the outside while functioning as an outside air inlet passage 60 that introduces outside air into the container body 10.

[0046] The seal portion 27 plays a role in switching between communication between the inside of the container 10 and the outside through the outside air introduction path 60 and blocking the communication. Specifically, as shown in Figures 1 and 2, when the pressing head 5 is located at the upper end position P1, the sealing portion 27 is in tight contact with the lower end of the outer tube 41, which is located below the second inlet groove 48, thereby blocking communication between the inside of the container body 10 and the outside through the outside air inlet passage 60. When the push-down operation causes the push-down head 5 to move downward from the raised end position P1 and the lower support part 3 to move downward from the standby position P2, the seal between the lower end of the outer tube 41 and the seal part 27 is released as shown in Fig. 4. Furthermore, the second introduction groove 48 and the first introduction groove 25 communicate with each other. Therefore, the seal part 27 allows communication between the inside of the container body 10 and the outside through the outside air introduction passage 60.

[0047] Furthermore, in the discharge container 1 of this embodiment, a restricting portion 70 is provided between the mounting cap 20 and the lower support portion 3, which restricts the lower support portion 3 from moving upward relative to the mounting cap 20 beyond the standby position P2.

[0048] 1 and 2, a restricting piece 71 protruding downward is formed at the lower end of the outer tube 41 of the attachment cap 20. A plurality of restricting pieces 71 are formed at intervals in the circumferential direction corresponding to the insertion holes 31, and are formed in an arc shape in a plan view. The restricting piece 71 is inserted into the insertion hole 31 and is also inserted into the through hole 30 formed in the flange portion 29. A restricting claw portion 72 that protrudes radially outward and is engaged with the thick portion 22a from below is formed on the outer circumferential surface of the restricting piece 71. The restricting claw portion 72 is disposed within the first introduction groove 25, and is engaged with the thick portion 22a from below when the lower support portion 3 is located at the standby position P2. The above-mentioned restricting piece 71 and restricting claw portion 72 function as a restricting portion 70.

[0049] (non-return valve) As shown in FIG. 1, the adapter member 40 constituting the lower support portion 3 is provided with a check valve 80 that closes the inlet hole 47 in an openable manner. The check valve 80 has a valve body 81 that is seated on the first valve seat 46 so as to be able to move upward and away from the first valve seat 46, and blocks the inflow hole 47. The check valve 80 utilizes the valve body 81 to permit the movement of the contents from inside the container body 10 through the inflow hole 47 toward the inside of the cylinder 4, and to restrict the movement of the contents from the inside of the cylinder 4 toward the container body 10 through the inflow hole 47. In this embodiment, a multi-point valve (for example, a three-point valve) is used as the check valve 80, but the present invention is not limited to this, and other known valve structures may be used.

[0050] (Cylinder) As shown in FIG. 1, the cylinder 4 is combined with the lower support portion 3, the inside of which can communicate with the inside of the container body 10 through a communication hole, and is elastically deformable up and down. The cylinder 4 is formed so as to extend upward from the flange portion 52. Therefore, the cylinder 4 is formed integrally with the flow path tube 50 constituting the lower support portion 3. However, this is not limited to this case, and for example, the cylinder 4 may be formed separately from the lower support portion 3 and combined with the lower support portion 3. The cylinder 4 has ridges 4a that protrude radially outward and valleys 4b that recess radially inward, which are alternately connected in the vertical direction, and the ridges 4a and valleys 4b are formed in a bellows shape that rotates around the container axis O.

[0051] (Pressing head) The press head 5 is disposed above the cylinder 4 and is supported from below by the cylinder 4. The press head 5 includes a head body 90, a first cylindrical body 100, and a second cylindrical body 110. In the illustrated example, the head body 90, the first cylindrical body 100, and the second cylindrical body 110 are each molded separately and then assembled together.

[0052] The head main body 90 includes a top wall portion 91, a peripheral wall portion 92, a relay cylinder 93, a nozzle cylinder 94, and a vertical rib 95, and is formed in a cylindrical shape with a top. The relay tube 93 is formed with a smaller diameter than the peripheral wall portion 92, and is formed so as to extend downward from the top wall portion 91. The lower end portion of the relay tube 93 is located lower than the lower end portion of the peripheral wall portion 92. The nozzle tube 94 extends radially outward from the upper end portion of the relay tube 93. The nozzle tube 94 penetrates the peripheral wall portion 92 in the radial direction and communicates with the interior of the relay tube 93. The tip opening of the nozzle tube 94 is a discharge hole 96 for discharging the contents. The discharge hole 96 communicates with the inside of the cylinder 4 through the nozzle tube 94 and the relay tube 93.

[0053] The vertical ribs 95 are formed so as to protrude radially inward from the inner peripheral surface of the relay tube 93. The vertical ribs 95 are formed at intervals in the circumferential direction of the relay tube 93, and are disposed at positions that avoid the nozzle tube 94 in the circumferential direction. The upper end of the vertical ribs 95 is formed integrally with the top wall portion 91. The lower end of the vertical rib 95 is located above the lower end of the relay tube 93.

[0054] The first cylinder 100 includes a head cylinder 101, an intermediate cylinder 102, an inner cylinder 103, an annular first connecting wall 104, and an annular second connecting wall 105, and is formed in a multi-cylinder shape. The head tube 101 is an outer tube of the entire press-down head 5, and surrounds the guide tube 35 of the mounting cap 20 from the radial outside. As a result, the guide tube 35 is disposed inside the press-down head 5. The upper end of the head tube 101 is fitted into the peripheral wall portion 92 of the head main body 90 from the radial inside.

[0055] The intermediate tube 102 is disposed radially inside the head tube 101, and is fitted into the relay tube 93 of the head body 90 from the radially outside. The first connecting wall 104 radially connects the upper end of the head tube 101 to the upper end of the intermediate tube 102. The internal tube 103 is disposed radially inside the intermediate tube 102. The second connecting wall 105 radially connects the lower end of the intermediate tube 102 to the lower end of the internal tube 103. In the illustrated example, the second connecting wall 105 extends upward from the lower end of the intermediate tube 102 toward the radially inside.

[0056] As shown in Figures 1 and 3, a locking protrusion 109 is formed at the lower end of the head tube 101, which protrudes radially inward and is engaged from below with the regulating protrusion 37 formed on the guide tube 35. The locking projection 109 is formed to extend around the entire circumference of the head tube 101. An upper surface 109a of the locking projection 109 is a flat surface perpendicular to the container axis O. In contrast, a lower surface 109b of the locking projection 109 is an inclined surface that extends upward as it moves radially inward.

[0057] 1, the second cylindrical body 110 is disposed so as to surround the intermediate cylinder 102 from the outside in the radial direction, and is fitted to the intermediate cylinder 102. In the illustrated example, the lower end of the second cylindrical body 110 is formed integrally with the cylinder 4. However, this is not limited to this case, and the second cylindrical body 110 may be formed separately from the cylinder 4 and combined with the cylinder 4.

[0058] 1 and 3, the outer circumferential surface at the lower end of the second cylindrical body 110 is provided with guide protrusions 111 that protrude radially outward and are formed vertically. A plurality of guide protrusions 111 are formed at intervals in the circumferential direction corresponding to the guide grooves 36, and are disposed within the guide grooves 36. Each guide protrusion 111 is capable of moving up and down within the guide grooves 36.

[0059] 1, the inside of the internal cylinder 103 in the push-down head 5 is formed with a communication hole 106 that connects the inside of the cylinder 4 with the discharge hole 96. A poppet valve 120 is arranged in the communication hole 106 so as to be movable up and down. A second valve seat 107 on which the poppet valve 120 is seated is formed at the upper end of the internal cylinder 103.

[0060] Furthermore, suppression portions 108 are formed on the inner peripheral surface of the inner cylinder 103. The suppression portions 108 are formed in a vertically elongated shape and protrude radially inward. A plurality of suppression portions 108 are formed at intervals in the circumferential direction. The suppression portions 108 are opposed in the radial direction to a cylindrical portion 121 of a poppet valve 120, which will be described later. The suppressing portion 108 is capable of contacting the upper end portion of the upper flow passage tube 55 constituting the lower support portion 3 from above when the pressing head 5 is located at the lower end position.

[0061] (Poppet valve) The poppet valve 120 is a switching valve (check valve) that switches between communication and blocking between the inside of the cylinder 4 and the discharge hole 96. The poppet valve 120 is disposed in the cylinder 4 so as to be vertically movable relative to the lower support portion 3 and the push-down head 5. 1, when the push-down head 5 is located at the upper end position P1, the poppet valve 120 blocks communication between the inside of the cylinder 4 and the discharge hole 96. Then, when the push-down head 5 moves downward from the upper end position P1 by a push-down operation and the seal portion 27 allows communication between the inside of the container body 10 and the outside through the outside air introduction passage 60, the poppet valve 120 connects the inside of the cylinder 4 and the discharge hole 96.

[0062] The poppet valve 120 includes a cylindrical portion 121 disposed within the communication hole 106 and a shaft portion 122 extending downward from the cylindrical portion 121. The poppet valve 120 is disposed coaxially with the container axis O. The cylindrical portion 121 includes a reduced diameter cylinder 123 and a valve body cylinder 124 that is formed to have a larger diameter than the reduced diameter cylinder 123 and is arranged above the reduced diameter cylinder 123, and is formed into a cylindrical shape with a bottom that opens upward.

[0063] The valve body cylinder 124 is seated on the second valve seat 107 so as to be able to move away from the upper side. As a result, the poppet valve 120 blocks communication between the discharge hole 96 and the inside of the cylinder 4. The reduced diameter cylinder 123 is disposed inside the suppression portion 108 with its outer circumferential surface in close proximity to the suppression portion 108. The suppression portion 108 guides the up and down movement of the poppet valve 120 while suppressing the inclination of the valve body cylinder 124 relative to the second valve seat 107.

[0064] The shaft portion 122 is disposed so that its lower end enters the upper flow passage tube 55. A retaining portion 125 that is engaged with the claw portion 56 from below is formed at the lower end of the shaft portion 122. This prevents the poppet valve 120 from coming out of the upper flow passage tube 55 in the upward direction.

[0065] In the dispensing container 1 configured as above, the downward movement of the press-down head 5 is restricted by the stopper 6 as described above. The stopper 6 is formed in a C-ring shape and is removably attached to the guide tube 35. The stopper 6 is attached to the guide tube 35 so as to be located between the lower end of the head tube 101 and the cap top wall 23. As a result, the press-down head 5 is supported from below by the stopper 6, and downward movement is restricted unless the stopper 6 is removed. Therefore, the press-down head 5 is maintained in the initial state and is located at the upper end position P1.

[0066] It is not always necessary to use the stopper 6 to hold the press head 5 in the initial state. For example, the press head 5 may be held in the initial state by supporting the locking protrusion 109 of the press head 5 from below by the positioning protrusion 38. In this case, the stopper 6 may also be used to hold the press head 5 in the initial state.

[0067] (Action of the discharge container) Next, a case where the content is discharged using the dispensing container 1 configured as described above will be described. 1 (a state in which the contents of the container body 10 are not sucked up into the cylinder 4), the push-down head 5 is located at an upward end position P1. The lower support part 3 is located at a standby position P2 in which the seal part 27 blocks communication between the inside of the container body 10 and the outside through the outside air introduction path 60. Therefore, the seal part 27 maintains the airtightness of the outside air introduction path 60. Therefore, even if the discharge container 1 falls over, for example, it is possible to prevent inconvenience such as the contents in the container body 10 leaking through the outside air introduction path 60. Furthermore, even if the content of the container body 10 is sucked up into the cylinder 4, the valve body cylinder 124 of the poppet valve 120 is seated on the second valve seat 107, blocking communication between the inside of the cylinder 4 and the discharge hole 96 through the communication hole 106. Therefore, problems such as the content leaking through the discharge hole 96 can be prevented.

[0068] When starting use from the above-mentioned initial state, the stopper 6 is removed from the guide tube 35, and then the press-down head 5 is pressed down. As a result, the locking protrusion 109 of the press-down head 5 shown in Fig. 3 moves downward over the positioning protrusion 38 while the lower surface 109b of the locking protrusion 109 of the press-down head 5 is in contact with the upper surface 38a of the positioning protrusion 38. This allows the press-down head 5 to move downward from the upper end position P1 as shown in Fig. 4.

[0069] Therefore, from this point on, the depression head 5 is permitted to be depressed toward the lowering end position. By repeatedly depressing the depression head 5 once or multiple times, the check valve 80 is opened and the contents in the container body 10 are sucked up and stored in the cylinder 4. This completes preparations for discharging the contents. Therefore, from here on, the description will be made on the assumption that the contents are stored in the cylinder 4. Furthermore, the operation of each component member accompanying the pressing down operation of the pressing head 5 will be described in detail.

[0070] After the locking projection 109 has overcome the positioning projection 38 and moved downward, the lower support portion 3 can be moved downward from the standby position P2 by further pressing down the pressing head 5. Therefore, the lower end portion of the outer tube 41 of the adapter member 40 shown in FIG. 2 moves downward below the sealing portion 27 as shown in FIG. 4, and the sealing by the sealing portion 27 is released. This allows the first introduction groove 25 and the second introduction groove 48 to communicate with each other. Therefore, the sealing portion 27 allows communication between the inside of the container body 10 and the outside through the outside air introduction passage 60.

[0071] The lower support part 3 moves downward until the connecting wall 43 comes into contact with the upper open end of the guide tube 28 of the adapter member 40 and the outer tube 41 comes into contact with the flange part 29 of the attachment cap 20 from above. Therefore, at the stage where the seal part 27 releases the seal of the outside air introduction passage 60, the cylinder 4 moves downward together with the press-down head 5 while elastically deforming. However, this is not limited to this case, and the cylinder 4 may move downward without elastically deforming.

[0072] Then, when the pressing head 5 moves further, the connecting wall 43 of the lower support part 3 comes into contact with the upper open end of the guide tube 28 of the adapter member 40, and the outer tube 41 comes into contact with the flange part 29 of the attachment cap 20 from above, restricting further downward movement of the lower support part 3. As a result, by the subsequent pressing operation of the pressing head 5, the cylinder 4 is elastically deformed so as to be further compressed vertically, as shown in Fig. 5. This allows the inside of the cylinder 4 to be pressurized.

[0073] Furthermore, as the cylinder 4 elastically deforms, the suppression portion 108 of the push-down head 5 moves downward relative to the poppet valve 120. That is, the poppet valve 120 moves upward relative to the push-down head 5 while being guided by the suppression portion 108. Therefore, the valve body cylinder 124 of the poppet valve 120 can be moved upward away from the second valve seat 107, allowing communication between the inside of the cylinder 4 and the discharge hole 96 through the communication hole 106. On the other hand, the check valve 80 maintains a closed state by pressurizing the inside of the cylinder 4, blocking the inlet hole 47. Therefore, the content stored in the cylinder 4 can be discharged to the outside through the discharge hole 96 of the press-down head 5.

[0074] In the process of pressurizing the inside of the cylinder 4, the vertical rib 95 of the pressurized head 5 comes into contact with the poppet valve 120 from above, as shown in Fig. 5. Therefore, as the pressurized head 5 moves further downward, the poppet valve 120 moves downward together with the pressurized head 5. After that, the suppressing portion 108 of the pressurized head 5 comes into contact with the upper flow tube 55 constituting the lower support portion 3 from above, thereby restricting the downward movement of the pressurized head 5. At this time, the pressurized head 5 is located at the lower end position, and the cylinder 4 is in the most compressed state. In addition, the method of regulating the downward movement of the pressing head 5 is not limited to the above-mentioned case, and may be achieved, for example, by the lower end of the head tube 101 of the pressing head 5 contacting the cap top wall 23 of the attachment cap 20 from above.

[0075] When the pressing operation of the push-down head 5 is released after the content is discharged, the cylinder 4 undergoes elastic restoring deformation and expands due to its own elastic restoring force. This allows the push-down head 5 to move upward, and the valve body cylinder 124 of the poppet valve 120 to be seated against the second valve seat 107. Therefore, with the elastic restoring deformation of the cylinder 4, the push-down head 5 and the poppet valve 120 can be moved upward while maintaining a state in which communication between the inside of the cylinder 4 and the discharge hole 96 through the communication hole 106 is blocked. Then, the elastic restoration deformation of the cylinder 4 can reduce the pressure inside the cylinder 4 to create a negative pressure. Therefore, the check valve 80 can be opened to suck up the contents inside the container body 10 into the cylinder 4 through the pipe 45 and the inlet hole 47. This makes it possible to prepare for the next discharge.

[0076] Furthermore, in the above-mentioned process, since the inside of the container body 10 communicates with the outside through the outside air introduction path 60, outside air can be taken into the container body 10 through the outside air introduction path 60. Therefore, the pressure drop inside the container body 10 caused by the movement of the contents from inside the container body 10 toward the inside of the cylinder 4 can be eliminated.

[0077] Furthermore, the poppet valve 120, which is moving upward due to the elastic restoring deformation of the cylinder 4, is restricted from moving further upward as the retaining portion 125 comes into contact with the upper flow path tube 55 from below. Therefore, the upward movement of the press-down head 5 accompanying the elastic restoring deformation of the cylinder 4 causes the lower support portion 3 to move the cylinder 4 upward. 4, the press head 5 is then pulled upward, for example, to move the restricting protrusion 37 upward so as to overcome the positioning protrusion 38, and the restricting protrusion 37 can be engaged from below with respect to the positioning protrusion 38. This allows the press head 5 to return to the raised end position P1 as shown in FIG.

[0078] Furthermore, the lower support part 3 can be returned to the standby position P2, and the communication between the first introduction groove 25 and the second introduction groove 48 can be released, and the communication between the inside of the container body 10 and the outside through the outside air introduction path 60 can be blocked again by utilizing the sealing part 27.

[0079] In addition, when returning the press head 5 to the uppermost position, it is also possible to perform this by applying an external force to the press head 5 by attaching a stopper 6, for example.

[0080] As described above, according to the dispensing container 1 of this embodiment, it is possible to take in outside air into the container body 10 when dispensing the contents. Therefore, the container body 10 is not limited to, for example, a double container, and various containers can be adopted, making it possible to provide an easy-to-use dispensing container 1 that can be used for various purposes. In particular, in the discharge container 1 of this embodiment, the restricting portion 70 is provided on the adapter member 40, and restricts the lower support portion 3 from moving upward beyond the standby position P2. Therefore, as shown in Figs. 1 and 2, when the pressing head 5 and the lower support portion 3 are restored and displaced after the discharge of the contents, the lower support portion 3 can be appropriately positioned at the standby position P2. In other words, the restricting claw portion 72 can be brought into contact with the thick portion 22a of the mounting cap 20 from below, and the lower support portion 3 can be restricted from moving upward any further. Therefore, the seal portion 27 can be used to appropriately maintain a state in which communication between the inside of the container body 10 and the outside through the outside air introduction path 60 is blocked.

[0081] In particular, even if an unintended external force such as an impact from being dropped acts on the product during product distribution, the lower support part 3 can be prevented from moving upward beyond the standby position P2. If the lower support part 3 moves upward beyond the standby position P2, the airtightness of the outside air introduction path 60 provided by the seal part 27 will be released, which may lead to leakage of the contents. Specifically, for example, when the container 10 is distributed (transported) with the mounting cap 20 removed, if the lower support part 3 moves upward beyond the standby position P2 due to some unintended external force, the airtightness of the outside air introduction path 60 provided by the seal part 27 will be released. In this state, if the container 10 is set in a state where the contents are filled, the contents will be exposed through the outside air introduction path 60.

[0082] However, by utilizing the restricting portion 70 having the restricting piece 71 and the restricting claw portion 72, the lower support portion 3 can be restricted from moving upward beyond the standby position P2, so that even if an unintended external force is applied, the airtightness of the outside air introduction path 60 can be maintained by the seal portion 27. Therefore, leakage of the contents (liquid leakage, etc.) can be appropriately suppressed, and the discharge container 1 can be improved in reliability and quality.

[0083] Furthermore, in this embodiment, the cylinder 4 is formed in a bellows shape, so it is easily elastically deformed, and the depression head 5 can be depressed with a light force, making it easy to use. Furthermore, the elastic recovery performance of the cylinder 4 can be improved, and the depression head 5 and the lower support part 3 can be quickly restored to their original state. Therefore, it is easy to use, for example, when the content is repeatedly discharged.

[0084] Furthermore, in this embodiment, the press-down head 5 can be moved up and down while using the guide tube 35 of the attached cap 20 as a guide. Therefore, the press-down head 5 can be stably pressed down with little rattle, improving the ejection operability. Furthermore, by engaging the locking protrusion 109 formed on the guide tube 35 with the restricting protrusion 37 from below, further upward movement of the press-down head 5 can be restricted and the press-down head 5 can be appropriately positioned at the upper end position P1. Therefore, it is easy to use and has excellent convenience.

[0085] Furthermore, in this embodiment, since the guide tube 35 is formed with the positioning protrusion 38, the downward movement of the locking protrusion 109 can be suppressed. Therefore, unintended downward movement of the press-down head 5 can be suppressed, and the press-down head 5 can be positioned at the upper end position P1. Therefore, the lower support part 3 can be positioned at the standby position P2, and the outside air introduction passage 60 can be maintained in an airtight state by utilizing the seal part 27.

[0086] Second embodiment Next, a second embodiment of the discharge container according to the present invention will be described with reference to the drawings. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. In the first embodiment, the stopper 6 is used to regulate the depression operation of the press head 5, but in this embodiment, the stopper 6 is not used to regulate the depression operation of the press head 5.

[0087] As shown in FIG. 6, in the discharge container 200 of this embodiment, the push-down head 5 is rotatable around the container axis O. In this embodiment, among the circumferential directions, a direction going around the container axis O clockwise in a top view of the discharge container 200 is referred to as a first direction M1, and a direction going around the container axis O counterclockwise is referred to as a second direction M2.

[0088] The press-down head 5 is rotatable relative to the attachment cap 20. Therefore, the second cylinder 110 of the press-down head 5 of this embodiment does not have the guide protrusion 111 of the first embodiment. Correspondingly, the guide cylinder 35 of the attachment cap 20 does not have the guide groove 36 of the first embodiment.

[0089] Furthermore, in relation to the fact that the pressing head 5 is rotatable around the container axis O, the head body 90 and the first cylindrical body 100, as well as the first cylindrical body 100 and the second cylindrical body 110, are assembled together such that they cannot rotate relative to each other. In the illustrated example, the relay tube 93 of the head main body 90 and the intermediate tube 102 of the first cylindrical body 100 are combined together so as to be unable to rotate relative to each other by a first rotation restricting portion 210 including locking ribs that lock together in the circumferential direction. Furthermore, the intermediate tube 102 of the first cylindrical body 100 and the second cylindrical body 110 are combined together so as to be unable to rotate relative to each other by a second rotation restricting portion 211 including locking ribs that lock together in the circumferential direction.

[0090] As a result, as the press-down head 5 rotates, the cylinder 4 formed integrally with the second cylindrical body 110 and the flow path tube 50 formed integrally with the cylinder 4 can rotate around the container axis O together with the press-down head 5. Furthermore, the lower flow path tube 51 constituting the flow path tube 50 and the inner tube 42 of the adapter member 40 are combined together by a third rotation restricting portion 212 including locking ribs that lock together in the circumferential direction so as to be unable to rotate relative to each other. Therefore, the entire lower support part 3 is capable of rotating around the container axis O in accordance with the rotation of the press-down head 5 and the cylinder 4.

[0091] However, the restricting portion 70 (restricting piece 71, restricting claw portion 72) of the adapter member 40 is inserted into the through hole 30 and the insertion hole 31, which are formed in the mounting cap 20 and have an arc shape in a plan view (see FIG. 2). Therefore, the pressing head 5, the cylinder 4, and the lower support part 3 are not rotated 360 degrees around the container axis O, but are reciprocally rotatable in the first direction M1 and the second direction M2 over the range in which the through hole 30 and the insertion hole 31 are formed.

[0092] 6 and 7, the locking projection 109 formed on the pressing head 5 has both an upper surface 109a and a lower surface 109b that are flat surfaces perpendicular to the container axis O. In the illustrated example, the locking projection 109 is formed in a rectangular shape in a side view that is longer in the circumferential direction than in the vertical direction. Note that FIG. 7 is a development view of the guide tube 35 as viewed from the direction of the arrow C shown in FIG. 6.

[0093] A locking member 220 is formed on the outer circumferential surface of the guide tube 35 of the mounting cap 20 in place of the positioning protrusion 38 in the first embodiment. The locking member 220 is positioned below the restricting projection 37 and is formed so as to protrude radially outward. Furthermore, a plurality of locking members 220 are formed at intervals in the circumferential direction. The locking member 220 is formed with a locking groove 221 capable of receiving the locking projection 109 when the locking projection 109 is locked with the restricting projection 37.

[0094] The lock groove 221 is formed to be longer in the circumferential direction than the engaging protrusion 109, and is formed to open in the second direction M2 (one circumferential direction). Furthermore, of the bottom surface forming the lock groove 221, a portion located on the opening side is formed as an inclined surface 222 that slopes downward as it approaches the second direction M2.

[0095] Therefore, the locking protrusion 109 is restricted from moving downward within the locking groove 221, and is allowed to move downward as it leaves the locking groove 221 with the rotation of the press-down head 5 in the second direction M2. Furthermore, a climbing protrusion 230 that protrudes radially outward within the locking groove 221 is formed on the outer circumferential surface of the guide tube 35. The climbing protrusion 230 is formed so that the amount of protrusion radially outward is smaller than the depth of the locking groove 221, and is formed at a position that allows the locking protrusion 109 to climb over it before it reaches the locking groove 221. The overriding protrusion 230 is capable of applying a certain amount of resistance to the restricting protrusion 37 every time the locking projection 109 rides over the overriding protrusion 230 in the circumferential direction.

[0096] (Action of the discharge container) In the case of the dispensing container 200 of this embodiment configured as described above, as shown in Fig. 6 and Fig. 7, in the initial state, the locking protrusion 109 is housed in the locking groove 221. Therefore, the downward movement of the locking protrusion 109 can be restricted by using the locking member 220. Therefore, the press-down head 5 can be locked so as to restrict the press-down operation of the press-down head 5.

[0097] Therefore, unintentional downward movement of the press head 5 can be restricted, and the press head 5 can be positioned at the upper end position P1. Furthermore, since the lower support part 3 can be positioned at the standby position P2, the seal part 27 can be utilized to keep the outside air introduction path 60 airtight.

[0098] To release the lock of the press head 5, the press head 5 is rotated in the second direction M2. This causes the engaging protrusion 109 to move in the second direction M2 within the lock groove 221, as shown in Fig. 8, and to be removed from the lock groove 221. This allows the press head 5 to be released from the lock, and the press head 5 can be pressed down.

[0099] In particular, since the locking projection 109 disengages from the locking groove 221 after climbing over the climbing-over projection, the resistance (click feeling) at the time of climbing over can be felt, and it is easy to recognize that the lock of the presser head 5 has been released. Furthermore, since the locking projection 109 disengages from the locking groove 221 while inclining on the inclined surface 222, the weight of the presser head 5 and the like can be used to encourage the disengagement from the locking groove 221. Therefore, the rotation operation of the presser head 5 to release the lock can be easily performed.

[0100] Furthermore, as shown in FIG. 8, the locking protrusion 109 that has disengaged from the locking groove 221 can be brought into contact with, for example, an adjacent locking member 220 in the circumferential direction, making it possible to recognize that the locking protrusion 109 has disengaged from within the locking groove 221.

[0101] After the lock of the press-down head 5 is released, the contents can be discharged by pressing down the press-down head 5. Therefore, the same effects as those of the first embodiment can be achieved. After the contents are discharged, the pressing head 5 moves upward in a restoring manner in accordance with the elastic restoring deformation of the cylinder 4, and then the pressing head 5 is rotated in the first direction M1. This allows the engaging protrusion 109 to be housed in the lock groove 221 and engaged with the restricting protrusion 37 from below. This allows the pressing head 5 to be locked in a position at the upper end position P1, and restricts the pressing operation.

[0102] In particular, even when the locking protrusion 109 is housed in the locking groove 221, the locking protrusion 109 overcomes the over-riding protrusion, so it is easy to recognize that the presser head 5 is locked due to the resistance when over-riding. Furthermore, the locking protrusion 109 can be guided into the locking groove 221 by utilizing the inclined surface 222, so that the rotation operation of the presser head 5 for locking can be easily performed.

[0103] As described above, it is possible to easily switch between a locked state in which the pressing operation is restricted and an unlocked state in which the pressing operation is permitted, by a simple operation of simply rotating the pressing head 5. In particular, since there is no need to use a member such as the stopper 6, there is no need to pay attention to the loss of the stopper 6, and the number of parts can be reduced.

[0104] Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. The embodiments and their modifications include, for example, those that can be easily imagined by a person skilled in the art, those that are substantially the same, those that are within the scope of the equivalents, and the like.

[0105] For example, in the above embodiment, the seal portion 27 is formed on the mounting cap 20 side, but the present invention is not limited to this. For example, the seal portion 27 may be provided at the lower end of the outer tube 41 of the adapter member 40 so as to protrude radially outward, and may come into contact with the sliding wall 26 of the mounting cap 20 from the radially inner side to provide a seal.

[0106] Furthermore, in each of the above embodiments, the poppet valve 120 is used, but other valve designs (check valves) may be used as long as they can openably block the communication hole 106.

[0107] Furthermore, in each of the above embodiments, the cylinder 4 is formed in a bellows shape in which the peaks 4a and valleys 4b are alternately arranged in the vertical direction and the peaks 4a and valleys 4b rotate around the container axis O, but this is not limited to this case. For example, the peaks 4a and valleys 4b may be formed in a bellows shape in which the peaks 4a and valleys 4b rotate in a spiral shape around the container axis O. However, the shape of the cylinder 4 is not limited to a bellows shape, and other shapes that are elastically deformable in the vertical direction can be appropriately adopted. From the viewpoint of elastic recovery performance, the cylinder 4 is preferably bellows-shaped. [Explanation of symbols]

[0108] O…Container axis P1: Ascending end position P2…Standby position 1, 200...discharge container 2…Container body 3…Lower support part 4...Cylinder 4a…Cylinder ridge 4b…Cylinder valley 5...Pressing head 27…Seal part 35…Guide tube 37…Regulating protrusion 60…Outside air intake 70…Regulation Department 96…Discharge hole 109…Latching protrusion 220...Lock member 221...Lock groove

Claims

1. a container body for accommodating contents and having an attachment opening; a lower support portion disposed within the mounting mouth portion so as to be movable up and down relative to the mounting mouth portion; a cylinder that is combined with the lower support portion, the inside of which can communicate with the inside of the container body, and that is elastically deformable in the vertical direction; a press-down head that is combined with the cylinder and has a discharge hole that communicates with the inside of the cylinder; Between the mounting opening and the lower support, there is provided an outside air introduction passage that connects the inside of the container body to the outside and introduces outside air into the container body, and a seal portion that switches between communication between the inside of the container body and the outside through the outside air introduction passage and blocking the communication, the lower support portion is located at a standby position when the pressing head is located at a raised end position, the sealing portion blocks communication between the inside of the container body and the outside through the outside air introduction path when the press-down head is located at the raised end position, and allows communication between the inside of the container body and the outside through the outside air introduction path when the lower support portion moves downward from the standby position in accordance with the downward movement of the press-down head from the raised end position, A discharge container characterized in that a regulating portion is provided between the mounting port portion and the lower support portion to regulate the lower support portion from moving upward relative to the mounting port portion beyond the standby position.

2. The discharge container according to claim 1, The mounting opening portion is provided with a guide tube extending upward and disposed within the press-down head, A restricting protrusion protruding radially outward is provided at an upper end of the guide tube, The lower end of the press-down head is formed with a locking protrusion that protrudes radially inward and is locked to the regulating protrusion from below.

3. The discharge container according to claim 2, The pressing head is rotatable around a container axis of the container body, The guide tube is provided with a locking member that is located below the restricting protrusion and protrudes radially outward. a lock groove capable of receiving the engaging protrusion in a state in which the engaging protrusion is engaged with the restricting protrusion is formed in the lock member; The lock groove is open toward one circumferential direction around the container axis, A dispensing container in which the engaging protrusion is restricted from moving downward within the locking groove, and is allowed to move downward by disengaging from the locking groove as the pressing head rotates toward one side in the circumferential direction.

4. In the discharge container according to any one of claims 1 to 3, The cylinder is a dispensing container in which ridges protruding radially outward and valleys recessed radially inward are alternately connected in the vertical direction, and the ridges and valleys are formed in a bellows shape that rotates around the container axis of the container body.

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