WO2020017648A1 - Cap - Google Patents

Abstract

[Problem] To provide a cap that prevents contents from being discharged in a vigorous manner, makes it possible to discharge a desired quantity of the contents in a desired location without raising a supply speed, and effectively seals a flow passage channel. [Solution] This cap 1 is configured from a cap main body 7 that includes a discharge nozzle 11, as well as from a lid body 13, a holder part 15, and a valve body 17. During usage of contents, compressing a squeeze container 3 causes the contents to flow in from a communicating hole 51 in the holder part 15, forcing the valve body 17 upward and elastically deforming the valve body 17, whereby a discharge valve part 57 is unseated from a bottom surface of the holder part 15. This allows the communication hole 51 and a discharge flow path 29 to communicate and allows the squeeze container 3 and the discharge flow path 29 to communicate. Then, once the contents flowing from a flow passageway 55 of the valve body 17 collide with a bottom surface of the cap main body 7, the flow is restricted. As a result, the contents are not readily discharged in a vigorous manner from the discharge flow path 29, and it is possible to discharge a desired quantity of the contents in a desired location without raising a supply speed.

Description

cap

The present invention relates to a cap, particularly to a cap attached to the mouth of a squeeze container filled with liquid contents such as soy sauce.

Conventionally, the pressure in the squeeze container is increased by squeezing (compressing) the body of the squeeze container, and the pressure in the squeeze container discharges the contents in the squeeze container to the outside. Generally, a squeeze container has a cap attached to its mouth. Some of these caps are provided with a valve body, and the valve body is opened and closed according to the pressure in the squeeze container to open and seal the inside of the squeeze container and discharge the contents. This prevents liquid dripping when performing, and liquid leakage when the container falls.

For example, Patent Literature 1 discloses a squeeze bottle dispensing device including a cap, a canopy hooked on the cap, and an S-shaped diaphragm valve interposed between the cap and the canopy. . When discharging the contents, the dispensing device compresses the squeeze bottle and applies internal pressure, so that one peripheral edge of the deformed diaphragm valve is separated from the annular valve seat, and the contents are discharged from the fluid passage. It is configured to be ejected. Further, the compression of the squeeze bottle is released, and the pressure of the squeeze bottle becomes equal to the atmospheric pressure, whereby the diaphragm valve is closed and the squeeze bottle is sealed.

Japanese Patent Publication No. Hei 23-23428

However, in the invention described in Patent Literature 1, the body liquid of the squeeze bottle is strongly squeezed, and the content liquid is directly injected into the center hole (discharge port) via the fluid passage formed by opening the diaphragm valve. Flows vigorously, and may be ejected as it is. As a result, there is a problem that it is difficult to discharge a desired amount of the contents to a predetermined place.

The present invention has been made in view of the above problems, and can prevent a content from being vigorously discharged, and can discharge a desired amount (a trace amount) to a desired place without increasing a supply speed, It is another object of the present invention to provide a cap that effectively seals a distribution channel.

As a means for solving the above problems, the invention described in claim 1 is a synthetic resin cap fitted to a mouth of a container, wherein the cylindrical outer wall has a ceiling wall at an upper part, A discharge nozzle protruding from the upper surface of the ceiling wall and having a discharge flow path penetrating the ceiling wall, a holder portion provided on the lower surface of the ceiling wall and having a communication hole communicating with the container, and the ceiling wall; The valve body is held in a space between the holder portion and a valve body arranged so as to always interrupt communication between a discharge flow path of the discharge nozzle and a communication hole of the holder portion. Disc-shaped bottom wall portion provided with a flow passage in the portion, an inclined wall portion extending radially outward from an outer peripheral edge of the disc-shaped bottom wall portion, and the flow passage in the disc-shaped bottom wall portion A valve portion provided so as to surround the valve body, and a valve portion provided on an outer peripheral edge of the inclined wall portion; Each valve portion is disposed so as to be seated on one of the ceiling wall and the holder portion, and the discharge passage of the discharge nozzle and the contents in the container pass through the valve body. The discharge side flow path is provided so as not to overlap in the axial direction.

The cap according to claim 1 squeezes (compresses) the squeeze container to apply internal pressure when the contents are used, whereby the valve body is pushed up by the internal pressure of the squeeze container and elastically deforms. Due to this elastic deformation, only one of the valve portions of the valve body is separated from the ceiling wall or the holder portion. As a result, the discharge passage of the discharge nozzle communicates with the communication hole of the holder, and the contents of the squeeze container are discharged to the outside.
On the other hand, by releasing the squeeze on the squeeze container, the pressure in the squeeze container becomes negative, and the valve body is pulled toward the squeeze container and elastically deforms. Due to this elastic deformation, the other of the valve portions of the valve body is separated from the ceiling wall or the holder portion, and the discharge flow path and the squeeze container are in direct communication. As a result, the contents remaining in the cap together with the outside air flow into the squeeze container. When the pressure in the squeeze container becomes substantially the same as the atmospheric pressure, the valve element returns to the original state (a state in which each valve portion of the valve element is seated on one of the ceiling wall and the holder), and the discharge is performed. The communication between the discharge channel of the nozzle and the squeeze container is cut off, and the inside of the squeeze container can be sealed.

The cap according to claim 1 is provided such that the discharge flow path of the discharge nozzle and the discharge-side flow path through which the contents in the container pass through the valve element do not overlap in the axial direction. It is difficult for the contents flowing from the flow passage to flow directly to the discharge flow path of the discharge nozzle. In other words, the content flowing from the inside of the squeeze container once collides with the lower surface of the ceiling wall to regulate the flow, and then flows into the discharge channel of the discharge nozzle. This prevents the contents from being vigorously discharged to the outside and discharges a desired amount (trace amount) to a desired place without increasing the supply speed.

According to a second aspect of the present invention, in the first aspect of the present invention, the valve body is held in a space between the ceiling wall and the holder portion, and surrounds the flow passage of the disc-shaped bottom wall portion. The valve portion provided as described above is seated on the bottom surface of the holder portion, and the valve portion provided on the outer peripheral edge of the inclined wall portion is provided so as to be seated on the ceiling wall.

In the invention according to claim 2, when discharging the contents, the squeeze container is squeezed (compressed) to apply an internal pressure, whereby the valve body is pushed up by the internal pressure of the squeeze container and elastically deforms. Due to this elastic deformation, the valve portion provided so as to surround the flow passage of the disc-shaped bottom wall portion is separated from the holder portion, and the communication hole of the holder portion and the flow passage of the valve element communicate with each other. The discharge channel communicates with the squeeze container. At this time, the valve portion provided on the outer peripheral edge of the inclined wall portion remains seated on the lower surface of the ceiling wall. As a result, the contents of the squeeze container are discharged to the outside.
On the other hand, by releasing the squeeze on the squeeze container, the pressure in the squeeze container becomes negative, and the valve body is pulled toward the squeeze container and elastically deforms. Due to this elastic deformation, the valve portion provided on the outer peripheral edge of the inclined wall portion is separated from the lower surface of the ceiling wall, and the discharge passage and the communication hole are directly communicated from the outer diameter side of the valve body. At this time, since the valve portion provided so as to surround the flow passage of the disc-shaped bottom wall portion is seated on the holder portion, the path through which the discharge flow passage communicates with the squeeze container through the flow passage of the valve body is shut off. Is done. As a result, the contents remaining in the cap together with the outside air flow into the squeeze container. Then, when the pressure in the squeeze container becomes substantially equal to the atmospheric pressure, the valve body returns to the original state (a state in which each valve portion is seated on the holder portion or the lower surface of the ceiling wall), and the discharge flow of the discharge nozzle The communication between the road and the squeeze container can be cut off, and the inside of the squeeze container can be sealed.

According to a third aspect of the present invention, in the first aspect of the present invention, the valve body is held in a space between the ceiling wall and the holder, and surrounds the flow path of the disc-shaped bottom wall. The valve portion provided as described above is seated on the ceiling wall, and the valve portion provided on the outer peripheral edge of the inclined wall portion is provided so as to be seated on the bottom surface of the holder portion.

The cap according to claim 3 squeezes (compresses) the squeeze container to apply internal pressure when discharging the contents, whereby the valve element is pushed up by the internal pressure of the squeeze container and elastically deforms. Due to this elastic deformation, the valve portion provided on the outer peripheral edge of the inclined wall portion is separated from the holder portion, and the communication hole of the holder portion from the outer peripheral side of the valve body communicates with the discharge flow path of the discharge nozzle. By the communication, the discharge channel and the squeeze container communicate with each other. At this time, the valve portion provided so as to surround the flow passage of the disc-shaped bottom wall portion remains seated on the lower surface of the ceiling wall. As a result, the contents of the squeeze container are discharged to the outside.
On the other hand, by releasing the squeeze on the squeeze container, the pressure in the squeeze container becomes negative, and the valve body is pulled toward the squeeze container and elastically deforms. Due to this elastic deformation, the valve section provided so as to surround the flow path of the disc-shaped bottom wall is separated from the lower surface of the ceiling wall, and the flow path of the disc-shaped bottom wall and the discharge flow path are directly connected. Is done. At this time, since the valve portion provided on the outer peripheral edge of the inclined wall portion is seated on the holder portion, the path from the outer peripheral side of the valve body is shut off. As a result, the contents remaining in the cap together with the outside air flow into the squeeze container. When the pressure in the squeeze container becomes substantially equal to the atmospheric pressure, the valve body returns to the original state (a state in which each valve portion is seated on the holder portion or the lower surface of the ceiling wall), and the discharge flow of the discharge nozzle The communication between the road and the squeeze container can be cut off, and the inside of the squeeze container can be sealed.

In the invention described in claim 4, in the invention described in claim 2, the opening area of the flow passage of the disc-shaped bottom wall portion is formed smaller than the opening area of the discharge passage of the discharge nozzle. It is characterized by the following.

According to a fifth aspect of the present invention, in the third aspect of the present invention, an opening area of the communication hole of the holder portion is formed smaller than an opening area of the discharge passage of the discharge nozzle. Things.

The cap according to claim 4 or 5, wherein the opening area of the flow passage of the disc-shaped bottom wall and the opening area of the communication hole of the holder are made smaller than the opening area of the discharge flow path of the discharge nozzle. The amount of contents flowing from the squeeze container can be regulated by the flow passage of the bottom wall or the communication hole of the holder. Thereby, the amount of the contents flowing in the discharge flow path of the discharge nozzle is suppressed, and a desired amount can be discharged to the outside.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the flow passage of the valve body and the communication hole of the holder are provided so as not to overlap in the axial direction. It is a feature.

The cap according to claim 6 is provided such that the flow passage of the valve body and the communication hole of the holder portion do not overlap in the axial direction, so that the contents flowing from the communication hole of the holder portion directly flow through the valve body. It becomes difficult to flow on the road. That is, the content flowing from the communication hole of the holder portion once collides with the valve body to regulate the flow, and then flows into the flow passage of the valve body. Thereby, the supply speed can be suppressed.

In the invention described in claim 7, in the invention described in any one of claims 1 to 6, the communication hole of the holder portion is single, and the radial center of the communication hole is in the radial direction of the holder portion. It is characterized by being arranged coaxially with the center or being eccentrically arranged on the side where the container is inclined with respect to the radial center of the holder portion.

8. The cap according to claim 7, wherein the holder portion has a single communication hole, and the radial center of the communication hole is arranged coaxially with the radial center of the holder portion or with respect to the radial center of the holder portion. By disposing the container eccentrically on the inclined side, the contents flow into a single communication hole when discharging the contents in the squeeze container, so that it is difficult for air to enter from the communication hole, and the contents and air (Foaming) can be prevented.

ADVANTAGE OF THE INVENTION According to the cap of this invention, a content can be prevented from being discharged vigorously, a desired amount (trace amount) can be discharged to a desired place, without increasing a supply speed, and the distribution path is effective. A sealing cap can be provided.

It is sectional drawing of the cap attached to the mouth part of the squeeze container concerning 1st Embodiment of this invention. FIG. 2A is a plan view, FIG. 2B is a cross-sectional view taken along line AA of FIG. 1A, and FIG. 1C is a bottom view. FIG. 2A is a plan view, FIG. 2B is a cross-sectional view taken along line BB of FIG. 1A, and FIG. 1C is a bottom view. FIG. 2A is a plan view, FIG. 2B is a sectional view taken along line CC of FIG. 1A, and FIG. 1C is a bottom view. FIG. 2A is a sectional view at the time of discharge, and FIG. 2B is a sectional view at the time of suction; It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 2nd Embodiment of this invention. FIG. 7A is a plan view, and FIG. 7B is a bottom view, showing a holder portion of the cap body shown in FIG. 6. FIG. 7 shows a valve body of the cap body shown in FIG. 6, wherein (a) is a plan view and (b) is a bottom view. FIG. 7A is a cross-sectional view at the time of discharge, and FIG. 6B is a cross-sectional view at the time of suction; It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 3rd Embodiment of this invention. 11A and 11B show a holder part of the cap body shown in FIG. 10, wherein FIG. 10A is a plan view and FIG. 10A and 10B show a valve body of the cap body shown in FIG. 10, wherein FIG. 10A is a plan view and FIG. 10B is a bottom view. 10A and 10B show a use state of the cap shown in FIG. 10, wherein FIG. 10A is a cross-sectional view at the time of discharge, and FIG. It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 4th Embodiment of this invention. 15A and 15B show a holder portion of the cap body shown in FIG. 14, wherein FIG. 15A and 15B show a valve body of a cap body shown in FIG. 14, wherein FIG. 14A is a plan view and FIG. 14B is a bottom view. 14A is a cross-sectional view at the time of discharge, and FIG. 14B is a cross-sectional view at the time of suction. It is sectional drawing of the cap attached to the mouth part of the squeeze container concerning 5th Embodiment of this invention. 18A and 18B show a holder portion of the cap body shown in FIG. 18, wherein FIG. 18A is a plan view and FIG. 18A and 18B show a valve body of the cap body shown in FIG. 18, wherein FIG. 18A is a plan view and FIG. 18A and 18B show a use state of the cap shown in FIG. 18, wherein FIG. 18A is a cross-sectional view at the time of discharge, and FIG. It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 6th Embodiment of this invention. It is a bottom view of the holder part shown in FIG. FIG. 22 shows a use state of the cap shown in FIG. 22, where (a) is a cross-sectional view at the time of discharge and (b) is a cross-sectional view at the time of suction.

Hereinafter, the configuration of the cap according to the first embodiment of the present invention will be described in detail with reference to FIGS.
The cap 1 according to the first embodiment of the present invention is attached to a mouth 5 of a squeeze container 3 as shown in FIG. The cap 1 includes a cap body 7 including a discharge nozzle 11, a lid 13 connected to the cap body 7, a holder 15 mounted on the cap body 7, and a support between the cap body 7 and the holder 15. And the valve element 17 is provided.

First, the squeeze container 3 covered with the cap 1 will be described with reference to FIG.
The squeeze container 3 is an easily deformable container formed of a synthetic resin such as polyethylene or polyethylene terephthalate (PET), and the inside thereof is filled with a fluid content. The contents include, for example, ponzu, soy sauce, edible oil, lotion, and the like. The squeeze container 3 is of a type that discharges contents by applying internal pressure by, for example, squeezing (compressing) a body (not shown). The mouth 5 of the squeeze container 3 has an annular engaging ridge 19 projecting radially outward, which engages with a ridge 39 of a cylindrical outer wall 21 of the cap body 7 described later on the outer periphery thereof. Is formed. The engaging ridge 19 has a tapered shape so that the peripheral edge of the tip can be easily fitted to the cap 1 (see FIG. 1). Further, the squeeze container 3 is formed with an annular projection 20 that protrudes radially outward to prevent deformation of the body of the squeeze container 3 when the cap 1 is attached to the mouth 5. The projection 20 is provided so as to be located below the engagement ridge 19.

Next, the configuration of the cap 1 will be described with reference to FIGS.
The cap body 7 of the cap 1 is formed of a synthetic resin such as polyethylene, and has a cylindrical outer wall 21 fitted to the mouth 5 of the squeeze container 3, and a ceiling wall closing an upper portion of the cylindrical outer wall 21. 27, a cylindrical inner wall portion 23 provided concentrically inside the cylindrical outer wall portion 21 and suspended from the ceiling wall 27, and between the cylindrical outer wall portion 21 and the cylindrical inner wall portion 23. A cylindrical fitting wall portion 25 provided concentrically and hanging down from a ceiling wall 27, and a discharge nozzle 11 integrally projecting upward from the ceiling wall 27 inside the cylindrical inner wall portion 23, Consists of

The discharge nozzle 11 protruding from the upper surface of the ceiling wall 27 has a discharge flow path 29 communicating from the lower surface of the ceiling wall 27 to the upper surface, and the distal end is formed so as to increase in diameter from the base end to the distal end. ing. The radial center of the discharge channel 29 of the discharge nozzle 11 is eccentric to the opposite side of the hinge portion 31 with respect to the radial center of the body of the squeeze container 3 (see FIGS. 1 and 2). In the present embodiment, the diameter φ1 of the discharge channel 29 is set to 4 mm.

The lid 13 covered by the cap body 7 is for opening and closing the discharge flow path 29 of the discharge nozzle 11 and for covering or opening the upper surface of the cap body 7. The lid 13 is integrally connected to the upper edge of the cylindrical outer wall 21 of the cap body 7 via the hinge 31. Further, on the outer peripheral wall of the lid 13, a projection 33 is provided on the opposite side of the hinge part 31 to hook a finger or a nail when the user opens the lid 13. Further, a cylindrical plug 35 that fits tightly into the discharge channel 29 is vertically provided at a position on the lower surface of the cover 13 opposite to the discharge channel 29 protruding from the upper surface of the cap body 7. You. The outer periphery of the tip of the cylindrical plug 35 has a tapered shape. Further, the lid 13 is formed at the lower edge of the inner peripheral surface thereof with a projection locking portion 37 extending annularly in the circumferential direction. Further, on the outer peripheral upper surface of the ceiling wall 27, a ridge locking portion 49 extending annularly along the circumferential direction is formed, and when the lid 13 is covered on the ceiling wall 27, the ridge of the lid 13 is formed. The locking portion 37 and the projection locking portion 49 of the ceiling wall 27 are engaged.

The cylindrical outer wall portion 21 is formed at its tip inner peripheral portion with a radially inwardly projecting annular ridge portion 39 that engages with the engagement ridge portion 19 of the mouth portion 5 of the squeeze container 3. . The ridge portion 39 is tapered so that the diameter decreases from the distal end to the proximal end of the cylindrical outer wall portion 21. A first space 41 (see FIGS. 1 and 2) for inserting the mouth 5 of the squeeze container 3 is provided between the cylindrical outer wall 21 and the cylindrical fitting wall 25. In order to facilitate insertion of the squeeze container 3 into the first space 41, the cylindrical fitting wall 25 has a tapered outer peripheral end (see FIG. 1). The cylindrical inner wall portion 23 is formed on its outer periphery with an annular engaging protrusion 43 that engages with an engaging protrusion 53 (see below) of the holder portion 15. The part is formed with a centering 45 (positioning part) for positioning the valve element 17. A second space 47 (see FIGS. 1 and 2) for inserting the holder 15 is formed between the cylindrical inner wall 23 and the cylindrical fitting wall 25.

As shown in FIGS. 1 and 3, the holder 15 has a cylindrical shape with a bottom made of a synthetic resin such as polypropylene, and a plurality of communication holes 51 having a substantially circular shape in a plan view are formed on the bottom surface thereof. . The plurality of communication holes 51 are formed outside the fixed range of the bottom surface of the holder 15, that is, in the outer region of a circle drawn with a radius P3 from the center O of the holder 15 (see the circle of the dashed line in FIG. 3A). A plurality (six in the illustrated example) are formed at predetermined intervals in the direction. The communication hole 51 is not provided in the inner area of the radius P3. An annular engaging projection 53 is formed on the inner peripheral portion of the holder 15 to engage with the engaging projection 43 of the cylindrical inner wall 23. A part of the inner side surface of the circle drawn by the radius P3 of the holder portion 15 becomes a valve seat of the valve body 17. In the present embodiment, the diameter φ2 of the plurality of communication holes 51 is set to 2.5 mm. The total area of the openings of the plurality of communication holes 51 (that is, the sum of the areas of the openings of the plurality of communication holes 51) is set to be larger than the area of the opening of the flow passage 55 of the valve element 17. The holder 15 is fitted from below onto the outer peripheral surface of the cylindrical inner wall portion 23, is mounted on the lower surface of the cap body 7, and forms a space 32 between the cap body 7 and the holder portion 15 as shown in FIG. The valve body 17 is held.

As shown in FIGS. 1 and 4, the valve element 17 has a substantially dish shape that can be elastically deformed, and controls the flow of contents between the discharge flow path 29 of the discharge nozzle 11 and the communication hole 51 of the holder 15. Communication or blocking. Specifically, the valve element 17 is molded from a synthetic resin such as polyethylene, and extends obliquely upward from the outer edge of the disc-shaped bottom wall 17a and the outer edge of the disc-shaped bottom wall 17a. And the inclined wall portion 17b. Here, the thickness of the inclined wall portion 17b is set smaller than the thickness of the disc-shaped bottom wall portion 17a so that the valve body 17 is easily elastically deformed. The disc-shaped bottom wall portion 17a of the valve element 17 is provided so as to surround the flow passage 55 (discharge-side flow passage) penetrating up and down the disc-shaped bottom wall portion 17a and the flow passage 55 in an annular shape on the lower surface. A discharge valve section 57 (valve section) is provided. The discharge valve portion 57 has an annular shape in plan view, and its radius is set to be shorter than the radius P3 of the holder portion 15 shown in FIG. In addition, an intake valve portion 59 (valve portion) provided so as to surround the discharge flow path 29 of the discharge nozzle 11 in an annular shape is provided on the outer peripheral upper edge of the inclined wall portion 17b. The flow passage 55 is for guiding the contents flowing from the communication hole 51 of the holder portion 15 to the discharge flow passage 29, and is formed substantially at the center of the disc-shaped bottom wall portion 17a, and has a substantially circular shape in plan view. No. The flow passage 55 is provided so as not to overlap the discharge passage 29 of the discharge nozzle 11 and the plurality of communication holes 51 of the holder 15 in the axial direction (see FIG. 1). Specifically, the distance P1 between the axis L1 of the discharge passage 29 (see the dashed line in FIG. 1) and the axis L2 of the flow passage 55 (see the dashed line in FIG. 1) is determined by the radius of the discharge passage 29 and the flow passage. It is set longer than the value obtained by adding the radius of 55 (the distance P1 is about 5 mm in the present embodiment). Further, the distance P2 between the axis L3 of the plurality of communication holes 51 (see the dashed line in FIG. 1) and the axis L2 of the flow passage 55 is larger than the value obtained by adding the radius of the discharge flow passage 29 and the radius of the flow passage 55. It is set to be long (in the present embodiment, the distance P2 is about 5.7 mm). In the present embodiment, the diameter φ3 of the flow passage 55 is set to 3 mm. Here, the area of the opening of the flow passage 55 is set smaller than the area of the opening of the discharge channel 29 of the discharge nozzle 11.

As shown in FIG. 1, the discharge valve portion 57 is formed in an annular shape on the outer edge of the disc-shaped bottom wall portion 17 a so as to face the bottom surface of the holder portion 15, and the tip thereof has a hemispherical shape in cross section. (See FIG. 4). Here, the bottom surface (within a certain range of the bottom surface of the holter portion 15) of the holder portion 15 within a radius P3 facing the discharge valve portion 57 functions as a valve seat. The intake valve portion 59 is formed in an annular shape on the outer peripheral edge of the inclined wall portion 17b so as to face the ceiling wall 27, and the tip thereof has a hemispherical cross section (see FIG. 4). Here, the wall surface of the ceiling wall 27 facing the intake valve portion 59 functions as a valve seat, and the discharge channel 29 is provided on the ceiling wall 27 surrounded by the intake valve portion 59.

Next, a method of assembling the cap 1 according to the first embodiment and a method of attaching the cap 1 to the mouth 5 of the squeeze container 3 will be described.
First, the valve 17 is housed in the cylindrical inner wall 23 with the intake valve portion 59 of the valve 17 facing the ceiling wall 27. At this time, the position of the valve element 17 is determined by the centering 45 of the cylindrical inner wall portion 23. The inner peripheral surface of the holder 15 is mounted along the outer peripheral wall of the cylindrical inner wall 23 of the cap body 7. When the holder 15 is mounted, the engagement projection 53 of the holder 15 is engaged with the engagement projection 43 of the cylindrical inner wall 23, and the engagement prevents the holder 15 from falling off. The valve element 17 is held in a space formed by cooperation between the cap body 7 and the holder 15. In this state, the discharge valve portion 57 of the valve body 17 is seated on the bottom surface of the holder portion 15 where the plurality of communication holes 51 are not formed, and the intake valve portion 59 is seated on the lower surface of the ceiling wall 27. (See FIG. 1). By this assembly, the flow path 55 of the valve element 17 is arranged so as not to overlap the discharge flow path 29 and the plurality of communication holes 51. Thereby, the assembly of the cap 1 is completed.

Then, the mouth 5 of the squeeze container 3 is inserted into the first space 41 between the cylindrical outer wall 21 and the cylindrical fitting wall 25 along the inner peripheral wall of the cylindrical outer wall 21. At this time, the engaging ridge 19 of the mouth 5 of the squeeze container 3 is engaged with the ridge 39 of the cylindrical outer wall portion 21 to prevent the squeeze container 3 from falling off. Thus, the mounting of the cap 1 on the squeeze container 3 is completed.

Next, the operation of the cap 1 according to the first embodiment of the present invention will be described with reference to FIG.
When using the contents in the squeeze container 3, first, the lid 13 is opened to expose the discharge nozzle 11 to the outside. At this time, since the body (not shown) of the squeeze container 3 is not compressed, the discharge valve portion 57 and the intake valve portion 59 of the valve body 17 are seated on the bottom surface of the holder portion 15 and the wall surface of the ceiling wall 27. It has been done.

Then, the body of the squeeze container 3 is squeezed with the discharge nozzle 11 facing downward, and an internal pressure is applied inside the squeeze container 3. Due to this internal pressure, the contents flow from the plurality of communication holes 51 and push up the lower surface of the inclined wall portion 17b of the valve body 17, whereby the valve body 17 is elastically deformed, and the discharge valve portion 57 of the valve body 17 is moved. The holder 15 is separated from the bottom surface. At this time, the intake valve portion 59 of the valve body 17 remains seated on the lower surface of the ceiling wall 27. As a result, the communication hole 51 of the holder 15 and the discharge channel 29 of the discharge nozzle 11 communicate with each other, and the squeeze container 3 and the discharge channel 29 of the discharge nozzle 11 communicate with each other. As a result, the contents in the squeeze container 3 pass through the plurality of communication holes 51 of the holder portion 15, pass through the flow passage 55 of the valve element 17 (that is, the discharge side flow passage), and hit the lower surface of the ceiling wall 27 before being discharged. The liquid is discharged to the outside through the discharge channel 29 of the nozzle 11 (see the arrow in FIG. 5A). Here, the discharge valve portion 57 is opened and held by the fluid pressure of the content flowing from the communication hole 51 to the flow passage 55 and the fluid pressure of the content flowing from the flow passage 55 to the discharge flow passage 29. This allows the contents to flow smoothly and quantitatively. Further, since the area of the opening of the flow passage 55 of the valve element 17 is smaller than the total area of the openings of the plurality of communication holes 51 of the holder portion 15, the flow rate of the contents passing through the flow passage 55 is regulated, and The discharge amount can be limited, and the discharge can be performed in an appropriate amount. Furthermore, when the content passes through the flow passage 55 of the valve element 17, the content collides with the lower surface of the ceiling wall 27, changes the course, and heads toward the discharge channel 29. This weakens the flow of the content and prevents the content from being discharged to the outside.

Next, when the use of the contents is stopped, after the contents are discharged, the pressing of the body of the squeeze container 3 is stopped. Thereby, the inside of the squeeze container 3 becomes a negative pressure, and the valve element 17 is elastically deformed by its own restoration and being pulled toward the squeeze container 3. Due to this elastic deformation, the intake valve portion 59 is separated from the lower surface of the ceiling wall 27, and the discharge valve portion 57 is seated on the bottom surface of the holder portion 15 (see FIG. 5B). Thus, the passage of the valve 17 passing through the flow passage 55 is blocked, but the discharge passage 29 and the communication hole 51 are directly connected from the outer peripheral side of the valve 17 (see the arrow in FIG. 5B). ). As a result, the outside air flows into the squeeze container 3 from the flow path 48 (that is, the intake side flow path) between the cylindrical inner wall portion 23 of the cap body 7 and the outer peripheral surface of the intake valve portion 59 of the valve body 17. You. At this time, the contents remaining in the cap 1 also flow into the squeeze container 3 with the inflow of the outside air. This makes it difficult for the contents to remain in the cap 1 and for the liquid to drip.

When the pressure in the squeeze container 3 becomes substantially equal to the atmospheric pressure, the valve body 17 is restored, and the discharge valve portion 57 and the intake valve portion 59 are seated on the bottom surface of the holder portion 15 and the wall surface of the ceiling wall 27. Thus, the discharge channel 29 and the squeeze container 3 are shut off. When the hinge portion 31 is bent to cover the lid 13 so as to cover the upper surface of the cap body 7, the ridge locking portion 37 of the lid 13 engages with the ridge locking portion 49 of the ceiling wall 27. At the same time, the cylindrical plug 35 is tightly fitted into the discharge channel 29 of the discharge nozzle 11 (see FIG. 1). Accordingly, foreign matters can be prevented from being mixed into the cap main body 7, the inside of the squeeze container 3 can be double-sealed, and oxidation of the contents in the squeeze container 3 can be prevented.

According to the cap 1 according to the first embodiment of the present invention, since the area of the opening of the flow passage 55 of the valve element 17 is smaller than the area of the opening of the discharge passage 29 of the discharge nozzle 11, the contents flowing from the squeeze container 3 When passing through the flow passage 55, the flow rate of the contents is regulated, the amount of the contents discharged from the discharge nozzle 11 to the outside is suppressed, and the proper amount can be discharged to the discharge position.

According to the cap 1 according to the first embodiment of the present invention, the distance P1 between the axis L1 of the discharge channel 29 and the axis L2 of the flow channel 55 is determined by the radius of the discharge channel 29 and the radius of the flow channel 55. Since the length is set longer than the added value, the flow path 55 of the valve element 17 does not overlap with the discharge flow path 29 of the discharge nozzle 11. As a result, the content flowing from the flow passage 55 once collides with the lower surface of the ceiling wall 27 and is thereafter guided to the discharge flow path 29, so that the flow of the content is weakened and the momentum discharged to the outside is also weakened. Can be. As a result, it is possible to discharge an appropriate amount to the discharge location.

Further, according to the cap 1 according to the first embodiment of the present invention, the flow passage 55 of the valve body 17 does not overlap with the plurality of communication holes 51 of the holder portion 15 and the opening area of the flow passage 55 has a plurality of areas. Is formed to be smaller than the total area of the openings of the communication holes 51, so that the contents passing through the plurality of communication holes 51 once collide with the lower surface of the valve body 17, and weaken the flow of the contents to the outside while weakening the flow force of the contents. The discharge amount can be suppressed.

According to the cap 1 according to the first embodiment of the present invention, when the squeeze container 3 is compressed, the fluid pressure of the content flowing from the communication hole 51 to the flow passage 55 and the fluid pressure of the content flowing from the flow passage 55 to the discharge passage 29. The open state of the discharge valve portion 57 is maintained by the pressure. As a result, when the contents are used, the communication between the squeeze container 3 and the discharge channel 29 can be maintained, and the contents can be discharged smoothly and quantitatively to the outside.

According to the cap 1 according to the first embodiment of the present invention, when the squeeze of the body of the squeeze container 3 is released, the pressure in the squeeze container 3 becomes a negative pressure, and the valve body 17 is pulled toward the squeeze container 3. Due to the elastic deformation, the intake valve portion 59 is separated from the wall surface of the ceiling wall 27. As a result, the contents remaining in the discharge nozzles 11 are sucked into the squeeze container 3 together with the outside air, so that when the contents are discharged again, the dripping can be made difficult.

In addition, according to the cap 1 according to the first embodiment of the present invention, the structure of the cap body 7 is simplified because the holder portion 15 is attached to the lower surface of the cap body 7 together with the valve element 17.

Next, a cap 1A according to a second embodiment of the present invention will be described with reference to FIGS. In the following description, the same parts as those of the cap 1 of the first embodiment are denoted by the same reference numerals, and only different parts will be described in detail.
The cylindrical inner wall portion 23 of the cap body 7 of the cap 1A according to the second embodiment of the present invention is fitted between an outer wall portion 52 and an inner wall portion 54 of the holder 15 described later.

As shown in FIGS. 6 and 7, the holder portion 15 has a substantially circular communication hole 51A (in the present embodiment, one hole) formed in the bottom surface thereof. In addition, the holder portion 15 is provided with an inner wall portion 54 erected from the bottom surface concentrically inside the outer wall portion 52, and at a predetermined interval in the circumferential direction on the inner circumferential surface of the inner wall portion 54. A plurality of centering portions 45 (positioning portions) for positioning the valve element 17 are provided so as to protrude. In the present embodiment, the diameter φ2 of the communication hole 51A is set to 3 mm. The area of the opening of the communication hole 51 </ b> A is set smaller than the area of the opening of the discharge channel 29 of the discharge nozzle 11. The holder portion 15 is fitted from below onto the outer peripheral surface of the cylindrical inner wall portion 23 and is mounted on the lower surface of the cap body 7 as shown in FIG. 6, and a space between the cap body 7 and the holder portion 15 is provided. 32, the valve element 17 is held, and the disc-shaped bottom wall 17a of the valve element 17 is held toward the ceiling wall 27 of the cap body 7.

As shown in FIGS. 6 and 8, the valve element 17 has a disk-shaped bottom wall 17 a provided at the center of the upper part thereof, and an obliquely extending from the lower part of the outer peripheral edge of the disk-shaped bottom wall 17 a toward the radial outside. And an inclined wall portion 17b extending downward and curved. Here, the thickness of the inclined wall portion 17b is set smaller than the thickness of the disc-shaped bottom wall portion 17a so that the valve body 17 is easily elastically deformed. The disc-shaped bottom wall portion 17a of the valve element 17 is provided with a flow passage 55A penetrating vertically through the disc-shaped bottom wall portion 17a and an intake valve portion 59 (valve portion) surrounding the flow passage 55A in an annular shape on the upper surface. A discharge valve portion 57 (valve portion) that annularly surrounds the communication hole 51A of the holder portion 15 is provided on the outer peripheral lower edge of the inclined wall portion 17b.

As shown in FIG. 6, when the disc-shaped bottom wall portion 17 a of the valve body 17 is held between the cap body 7 and the holder 15 toward the ceiling wall 27 of the cap body 7, The intake valve portion 59 of the valve body 17 contacts the ceiling wall 27 of the cap body 7, and the discharge valve portion 57 of the valve body 17 contacts the bottom surface of the holder 15. The discharge valve portion 57 of the valve body 17 is in contact with the bottom surface of the holder portion 15 on a circle having a radius P3 from the center O of the holder portion 15 (see a dashed line in FIG. 7A). Act as a seat. At all times, the valve element 17 blocks the communication between the discharge passage 29 of the discharge nozzle 11 and the communication hole 51A of the holder 15. The flow path 48 (that is, the discharge side flow path) between the flow path 55A of the valve element 17 and the outer peripheral surface of the discharge valve part 57 and the inner wall part 54 of the holder part 15 is the discharge flow path 29 of the discharge nozzle 11 and the holder. It is provided so as not to overlap with the communication hole 51A of the portion 15 in the axial direction (see L1, L2, L3 and L4 in FIG. 6). The area of the flow path 48 between the outer peripheral surface of the discharge valve portion 57 and the inner wall portion 54 of the holder portion 15 is set to be larger than the opening area of the communication hole 51E of the bottom wall portion 15b of the holder 15.

Next, the operation of the cap 1A according to the second embodiment of the present invention will be described with reference to FIG.
When discharging the contents in the squeeze container 3, when the discharge nozzle 11 is directed downward and the body of the squeeze container 3 is squeezed to apply internal pressure to the squeeze container 3, the contents are communicated by the internal pressure. It flows from the hole 51A and pushes up the lower surface of the inclined wall portion 17b of the valve body 17. As a result, the intake valve portion 59 of the valve body 17 is pressed against the ceiling wall 27, the valve body 17 is elastically deformed, and the discharge valve portion 57 of the valve body 17 is separated from the bottom surface of the holder portion 15, and The object passes through the flow path 48 (discharge-side flow path) between the outer peripheral surface of the discharge valve portion 57 and the inner wall portion 54 of the holder portion 15, hits the lower surface of the ceiling wall 27, and then discharges the discharge flow path 29 of the discharge nozzle 11. And is discharged to the outside (see the arrow in FIG. 9A). At this time, the discharge amount of the contents in the squeeze container 3 is limited by the communication holes 51A of the holder 15 smaller than the opening area of the discharge flow path 29 of the discharge nozzle 11, and the contents are not discharged vigorously. It is possible to discharge a fixed amount.

Next, when the discharge of the contents is stopped, the squeezing of the body of the squeeze container 3 is stopped, thereby restoring the squeeze container 3 and moving the contents. By virtue of its own restoring force, the periphery of the valve element 17 is pulled toward the squeeze container 3 so that the valve element 17 returns to its original state. Then, due to the remaining negative pressure, the discharge flow path 57 of the valve element 17 comes into contact with the holder section 15, and is further elastically deformed, and the intake valve section 59 is separated from the lower surface of the ceiling wall 27. As a result, the flow path from the communication hole 51A passing through the outer peripheral side of the valve element 17 to the discharge flow path 29 is blocked, but the discharge flow path 29A passing through the flow path 55A of the valve element 17 (that is, the intake side flow path). Then, a flow path (see the arrow in FIG. 9B) from the flow path to the communication hole 51A of the holder portion 15 is generated. As a result, the outside air flows into the squeeze container 3 along with the contents remaining in the discharge passage 29, through the flow passage 55A of the valve body 17, and through the communication hole 51A of the holder portion 15 (FIG. 9). (See the arrow in (b)), the contents are less likely to remain in the cap 1A, and are less likely to drip.

When the pressure in the squeeze container 3 becomes substantially equal to the atmospheric pressure, the valve body 17 is restored, and the discharge valve portion 57 and the intake valve portion 59 are seated on the bottom surface of the holder portion 15 and the wall surface of the ceiling wall 27. Thus, the discharge channel 29 and the squeeze container 3 are shut off.

According to the cap 1 </ b> A according to the second embodiment of the present invention, when discharging the contents, the contents in the squeeze container 3 pass from the outer peripheral side of the valve element 17 to the outside through the discharge flow path 29 of the discharge nozzle 11. When the discharge is performed and the discharge of the contents is stopped, the flow passage 55A of the valve body 17 and the communication hole 51A of the holder portion 15 communicate with each other, and the contents remaining in the cap 1A together with the outside air are flowed into the squeeze container 3. You. Thereby, the same operation and effect as those of the cap 1 according to the above-described first embodiment can be obtained.

Next, a cap 1B according to a third embodiment of the present invention will be described with reference to FIGS. Note that, in the following description, the same reference numerals are used for the same portions in the cap 1A of the second embodiment, and only different portions will be described in detail.

The difference between the cap 1B according to the third embodiment and the cap 1A according to the second embodiment is the number of communication holes formed in the holder and the number of flow passages formed in the disc-shaped bottom wall of the valve body. And the other configurations are the same.
Specifically, as shown in FIGS. 10 and 11, the holder portion 15 has a substantially circular communication hole 51 </ b> B formed substantially in the center of the bottom surface thereof in plan view. In the present embodiment, the diameter φ2 of the communication hole 51B is set to 3 mm. The area of the opening of the communication hole 51 </ b> B is set smaller than the area of the opening of the discharge channel 29 of the discharge nozzle 11.

As shown in FIGS. 10 and 12, a plurality of flow passages 55B penetrating the disc-shaped bottom wall portion 17a of the valve body 17 vertically above and below the disc-shaped bottom wall portion 17a are provided in the intake valve portion 59 (valve portion). ) Are drilled so as to be in contact with the inside. The flow path 48 (that is, the discharge-side flow path) between the flow path 55B of the valve element 17 and the outer peripheral surface of the discharge valve part 57 and the inner wall part 54 of the holder part 15 is the discharge flow path 29 of the discharge nozzle 11 and the holder. It is provided so as not to overlap with the communication hole 51B of the portion 15 in the axial direction (see axes L1, L2, L3 and L4 in FIG. 10). The area of the flow path 48 between the outer peripheral surface of the discharge valve portion 57 and the inner wall portion 54 of the holder portion 15 is set to be larger than the opening area of the communication hole 51E of the bottom wall portion 15b of the holder 15.

Next, the operation of the cap 1B according to the third embodiment of the present invention will be described with reference to FIG.
When discharging the contents in the squeeze container 3, when the internal pressure is applied to the squeeze container 3, the contents flow through the communication hole 51B due to the internal pressure, and push up the lower surface of the inclined wall portion 17b of the valve body 17. . As a result, the intake valve portion 59 of the valve body 17 is pressed against the ceiling wall 27, the valve body 17 is elastically deformed, and the discharge valve portion 57 of the valve body 17 is separated from the bottom surface of the holder portion 15, and The object passes through the flow path 48 (discharge side flow path) between the outer peripheral surface of the discharge valve portion 57 and the inner wall portion 54 of the holder portion 15, hits the lower surface of the ceiling wall 27, and then discharges the discharge flow path 29 of the discharge nozzle 11. And is discharged to the outside (see the arrow in FIG. 13A). At this time, the discharge amount of the contents in the squeeze container 3 is limited by the communication hole 51B of the holder 15 smaller than the opening area of the discharge flow path 29 of the discharge nozzle 11, and the contents are not discharged vigorously. It is possible to discharge a fixed amount.

Next, when the discharge of the contents is stopped, the squeezing of the body of the squeeze container 3 is stopped, so that the negative pressure in the squeeze container 3 and the restoring force of the valve 17 itself cause the valve 17 to return to its original state. Return to the state. Then, due to the remaining negative pressure, the valve element 17 is further elastically deformed, and the intake valve portion 59 is separated from the lower surface of the ceiling wall 27. As a result, the flow path from the communication hole 51B passing through the outer peripheral side of the valve element 17 to the discharge flow path 29 is blocked, but the discharge flow path 29B passing through the flow path 55B of the valve element 17 is connected to the communication hole 51B of the holder portion 15. (See FIG. 13B). As a result, the outside air flows into the squeeze container 3 along with the contents remaining in the discharge passage 29, through the flow passage 55 </ b> B (the intake-side passage) of the valve element 17, and through the communication hole 51 </ b> B of the holder 15. (See the arrow in FIG. 13B), the content is less likely to remain in the cap 1B, and the liquid is less likely to drool.

According to the cap 1 </ b> B according to the third embodiment of the present invention, when discharging the contents, the contents in the squeeze container 3 pass from the outer peripheral side of the valve element 17 to the outside through the discharge flow path 29 of the discharge nozzle 11. When the discharge is stopped and the discharge of the contents is stopped, the plurality of flow paths 55B of the valve element 17 and the communication holes 51B of the holder portion 15 communicate with each other, and the contents remaining in the cap 1B together with the outside air are transferred into the squeeze container 3. Let it flow in. Thereby, the same operation and effect as those of the cap 1 according to the above-described first embodiment can be obtained.

Next, a cap 1C according to a fourth embodiment of the present invention will be described with reference to FIGS. In the following description, for the caps 1, 1A, and 1B of the first, second, and third embodiments, the same portions are denoted by the same reference numerals, and only different portions will be described in detail.

The difference between the cap 1C according to the fourth embodiment and the caps 1, 1A, and 1B of the first, second, and third embodiments is that the configurations of the cap body, the lid, the holder, and the valve are different. , Other configurations are the same.
Specifically, the cap body 7 forms a cylindrical outer wall 21, a ceiling wall 27 covering the upper part of the cylindrical outer wall 21, and a conical recess inclined upward from the center toward the center. A sloped wall 28, a cylindrical inner wall 23 and a cylindrical fitting wall 25 hanging down inside the cylindrical outer wall 21, and a discharge nozzle 11 integrally projecting upward from the sloped wall 28. Is done. At the lower part of the discharge nozzle 11, a bottomed cylindrical body 11a is integrally protruded into a conical recess formed by the inclined wall 28, and a plurality of discharge inlets 30, 30 (two places in the figure) are provided on the outer periphery thereof. And communicates with a discharge channel 29C penetrating the ceiling wall 27 (inclined wall 28). The bottom plate 11b of the bottomed cylindrical body 11a of the discharge nozzle 11 is provided on substantially the same plane as the lower surface of the ceiling wall 27. The bottom plate 11b is a part of the ceiling wall 27. In the present description, “substantially on the same plane” means not only completely identical, but also includes a positional error within a range allowable in terms of structure, dimensional accuracy, and action.

As shown in FIGS. 14 and 15, the holder portion 15 is formed such that its bottom surface protrudes inward leaving an edge, and a plurality of communication holes 51C having a substantially circular shape in a plan view are formed on the bottom surface. Six holes are formed at substantially equal intervals from the fifteen center points O on the same radius. The diameter φ2 of the communication hole 51C is set to 3 mm. The total area of the opening of the communication hole 51C is set to be larger than the area of the opening of the flow passage 55C of the valve element 17.

As shown in FIGS. 14 and 16, as shown in each embodiment, the valve element 17 includes a disc-shaped bottom wall 17 a provided with a flow passage 55 </ b> C at the center, and a disc-shaped bottom wall 17 a. A slanted wall portion 17b extending obliquely upward from the outer peripheral edge toward the outside in the radial direction, a discharge valve portion 57 (valve portion) provided around the disk-shaped bottom wall portion 17a, and a slanted wall portion 17b are provided. And an intake valve portion 59 (valve portion). The only difference is that a recess 17c is formed inside the disc-shaped bottom wall 17a. The flow passage 55C is provided so as not to overlap with the plurality of discharge inlets 30 of the discharge flow passage 29C of the discharge nozzle 11 and the communication hole 51C of the holder portion 15 in the axial direction (the axes L1 and L2 in FIG. 14). And L3). The area of the opening of the flow passage 55 </ b> C is set smaller than the total area of the openings of the plurality of discharge inlets 30 of the discharge nozzle 11. The valve element 17 is held in the space 32 between the ceiling wall 27 of the cap body 7 and the holder section 15 with the discharge valve section 57 in contact with the bottom surface of the holder section 15.

Next, the operation of the cap 1C according to the fourth embodiment of the present invention will be described with reference to FIG.
When discharging the contents in the squeeze container 3, when the internal pressure is applied to the squeeze container 3, the internal pressure causes the contents to flow from the communication hole 51C and push up the lower surface of the inclined wall portion 17b of the valve body 17. . As a result, the valve body 17 is elastically deformed, the discharge valve portion 57 of the valve body 17 is separated from the bottom surface of the holder portion 15, and the contents pass through the flow passage 55C of the valve body 17 and the discharge nozzle 11 is closed. After hitting the lower surface of the bottom plate 11b, it is discharged to the outside through the discharge inlets 30, 30 along the conical recess formed by the inclined wall 28, through the discharge flow path 29C of the discharge nozzle 11, and to the outside (FIG. 17 (a)). Arrow)). Thus, a predetermined amount can be discharged without the contents being discharged vigorously.

Next, when the discharge of the contents is stopped, the squeezing of the body of the squeeze container 3 is stopped, so that the negative pressure in the squeeze container 3 and the restoring force of the valve 17 itself cause the valve 17 to return to its original state. Return to the state. Then, due to the remaining negative pressure, the valve element 17 is further elastically deformed, and the intake valve portion 59 is separated from the lower surface of the ceiling wall 27. As a result, the flow path from the plurality of communication holes 51C passing through the flow path 55C of the valve element 17 to the discharge flow path 29C is blocked, but the discharge flow path 29C passing through the outer peripheral side of the valve element 17 is cut off from the plurality of communication holes 51C. (See FIG. 17B). As a result, the outside air flows into the squeeze container 3 along with the contents remaining in the discharge passage 29C, through the outer peripheral side of the valve element 17, and through the plurality of communication holes 51C of the holder portion 15 (FIG. 17 (b)), the contents are less likely to remain in the cap 1C, and the liquid is less likely to drip.

キ ャ ッ プ According to the cap 1C according to the fourth embodiment of the present invention, the same operation and effect as those of the cap 1 according to the above-described first embodiment can be obtained.

Next, a cap 1D according to a fifth embodiment of the present invention will be described with reference to FIGS. Note that, in the following description, the same reference numerals are used for the same portions in the cap 1C of the fourth embodiment, and only different portions will be described in detail.

The difference between the cap 1D according to the fifth embodiment and the cap 1C according to the fourth embodiment is that the number of communication holes formed in the holder, the arrangement of the valve bodies, and the positional relationship between the communication holes and the flow passages are different. The other configuration is the same.
Specifically, as shown in FIGS. 18 and 19, the holder portion 15 has one communication hole 51D having a substantially circular shape in a plan view substantially at the center of the bottom surface thereof. In the present embodiment, the diameter φ2 of the communication hole 51D is set to 3 mm. The area of the opening of the communication hole 51D is set smaller than the total area of the discharge inlets 30, 30 of the discharge nozzle 11.

As shown in FIGS. 18 and 20, the valve element 17 of the cap 1D is in a state where the valve element 17 of the cap 1C according to the fourth embodiment is inverted, that is, between the cap body 7 and the holder section 15. The disc-shaped bottom wall portion 17a of the valve body 17 is held so as to face the bottom plate 11b of the bottomed cylindrical portion 11a below the discharge nozzle 11. With this arrangement, the discharge valve portion 57 of the valve body 17 comes into contact with the bottom surface of the holder portion 15 on a circle having a radius P3 from the center O of the holder portion 15 (see a dashed line in FIG. 19A). The contact portion functions as a valve seat. The intake valve portion 59 of the valve body 17 contacts the lower surface of the bottom plate 11b of the bottomed cylindrical portion 11a of the discharge nozzle 11, and this lower surface functions as a valve seat.

The flow path 48 (that is, the discharge side flow path) between the flow path 55 </ b> D of the valve element 17 and the outer peripheral surface of the discharge valve portion 57 and the cylindrical inner wall portion 23 of the cap body 7 is the discharge flow path of the discharge nozzle 11. The discharge ports 29C and the communication holes 51D of the holder 15 are provided so as not to overlap in the axial direction (see axes L1, L2, L3 and L4 in FIG. 18). The area of the flow path 48 between the outer peripheral surface of the discharge valve portion 57 and the cylindrical inner wall portion 23 of the cap body 7 is set to be larger than the opening area of the communication hole 51D of the bottom wall portion 15b of the holder 15. I have.

Next, the operation of the cap 1D according to the fifth embodiment of the present invention will be described with reference to FIG.
When discharging the contents in the squeeze container 3, when the internal pressure is applied to the squeeze container 3, due to the internal pressure, the contents flow through the communication hole 51D and push up the lower surface of the inclined wall portion 17b of the valve body 17. . As a result, the intake valve portion 59 of the valve body 17 presses the lower surface of the bottom plate 11b of the bottomed cylindrical portion 11a, and the valve body 17 is elastically deformed. The contents are separated from the bottom surface, and the contents pass through the flow path 48 (discharge side flow path) between the outer peripheral surface of the discharge valve portion 57 and the cylindrical inner wall portion 23 of the cap body 7, and the lower surface of the ceiling wall 27. Is discharged to the outside through the discharge channel 29C of the discharge nozzle 11 (see the arrow in FIG. 21A). At this time, the discharge amount of the contents in the squeeze container 3 is limited by the communication hole 51D of the holder 15 smaller than the opening area of the discharge inlets 30 and 30 of the discharge nozzle 11, and the contents are not discharged vigorously. A predetermined amount can be discharged.

Next, when the discharge of the contents is stopped, the squeezing of the body of the squeeze container 3 is stopped, so that the negative pressure in the squeeze container 3 and the restoring force of the valve 17 itself cause the valve 17 to return to its original state. Return to the state. Then, the valve body 17 is further elastically deformed by the remaining negative pressure, and the intake valve portion 59 is separated from the lower surface of the discharge nozzle 11. As a result, the flow path from the discharge flow path 29C passing through the outer peripheral side of the valve element 17 to the communication hole 51D of the holder section 15 is shut off, but the discharge flow path 29C passing through the flow path 55D of the valve element 17 is closed. (See FIG. 21 (b)). As a result, the outside air flows into the squeeze container 3 along with the contents remaining in the discharge flow path 29C, through the flow path 55D (the intake side flow path) of the valve element 17, and through the communication hole 51D of the holder portion 15. (See the arrow in FIG. 21 (b)), it is possible for the contents to hardly remain in the cap 1D and to be hard to drip.

キ ャ ッ プ According to the cap 1D according to the fifth embodiment of the present invention, the same operational effects as those of the cap 1 according to the above-described first embodiment can be obtained.

Next, a cap 1E according to a sixth embodiment of the present invention will be described with reference to FIGS. In the following description, for the caps 1, 1A, 1B, 1C, 1D of the first to fifth embodiments, the same reference numerals are used for the same parts, and only different parts will be described in detail. .

The difference between the cap 1E according to the sixth embodiment and the caps 1, 1A, 1B, 1C, 1D of the first to fifth embodiments is that the cap body 7 is mounted on the upper part of the holder 15 and that the cap 1 The method of attachment to the squeeze container is different, and the other structure is the same as any one of the components of the caps 1, 1A, 1B, 1C, 1D of the first to fifth embodiments.
Specifically, the cap 1 </ b> E and the squeeze container 3 are attached by a male screw 24 formed on the outer peripheral surface of the mouth 5 of the squeeze container 3 and a female screw 26 formed on the inner peripheral surface of the cylindrical outer wall 21. By screwing, the cap 1E is attached to the squeeze container 3.

Referring to FIG. 22, cap body 7 is formed separately from cylindrical outer wall 21 integrally connected to lid 13, and has a cylindrical inner wall 23 and an upper portion of cylindrical inner wall 23. , A sloped wall 28 forming a conical recess, and a discharge nozzle 11 integrally projecting upward from the sloped wall 28. On the inner peripheral surface of the cylindrical inner wall portion 23, an annular discharge portion 34 that engages with an annular concave portion 36 of a first inner peripheral wall portion 15a of the holder portion 15 described later is formed. By mounting the cap body 7 on the holder part 15, the upper part of the cylindrical outer wall part 21 is covered by the ceiling wall 27 of the cap body 7, and the valve body 17 is held between the cap body 7 and the holder part 15. A space 32 is formed.

Referring to FIGS. 22 and 23, holder portion 15 is formed integrally with a substantially central inner peripheral surface of cylindrical outer wall portion 21, and has a communication hole 51 </ b> E communicating with squeeze container 3, and cylindrical outer wall portion 21. A first inner peripheral wall portion 15a concentrically provided inside and protruding from the bottom surface of the holder portion 15, and a second inner peripheral wall hanging from the lower surface of the holder portion 15 inside the first inner peripheral wall portion 15a. 15b. The first inner peripheral wall 15a has an annular recess 36 formed on the outer peripheral surface thereof, and a plurality of centering 45 formed on the inner peripheral surface. A first space 41 for inserting the mouth 5 of the squeeze container 3 is provided between the cylindrical outer wall 21 and the second inner peripheral wall 15b. A second space 47 for inserting the cylindrical inner wall portion 23 of the cap body 7 is formed between the cylindrical outer wall portion 21 and the first inner peripheral wall portion 15a. The second inner peripheral wall portion 15b has a tapered outer peripheral portion at the distal end thereof to facilitate insertion of the squeeze container 3 into the first space 41.

作用 The operation of the cap 1E according to the sixth embodiment of the present invention (see FIG. 24) is the same as the operation of the cap 1D according to the fifth embodiment (see FIG. 21). For this reason, the cap 1E according to the sixth embodiment has the same operational effects as the cap 1 according to the first embodiment described above.

In the caps 1, 1A, 1B, and 1E according to the first to third and sixth embodiments of the present invention, the cap body 7 and the lid 13 are provided integrally via the hinge 31. As in the caps 1C and 1D according to the fourth and fifth embodiments of the present invention, the cap body and the lid may be separate. Also in the caps 1C and 1D according to the fourth and fifth embodiments, the cap body and the lid body may be provided integrally via the hinge part.

In addition, in the caps 1, 1A, and 1B according to the first to third embodiments of the present invention, the distal ends of the discharge valve portion 57 and the intake valve portion 59 of the valve body 17 are hemispherical in cross section. , Spherical, square, etc. The distal ends of the discharge valve portion 57 and the intake valve portion 59 of the valve body 17 of the caps 1C, 1D, and 1E according to the fourth to sixth embodiments may have other shapes, such as a hemisphere, a sphere, and a square. .

Furthermore, in the cap 1 according to the first embodiment of the present invention, the diameter φ1 of the discharge channel 29 is set to 4 mm, the diameter φ2 of the communication hole 51 is set to 2.5 mm, and the diameter φ3 of the flow passage 55 is 3 mm. Is set to However, if the opening area of the flow path 55 is smaller than the opening area of the discharge flow path 29 and the discharge flow path 29 and the flow path 55 are provided at a position where they do not overlap in the axial direction, the viscosity is adjusted to the viscosity of the contents. The diameter of each of them may be appropriately changed. For example, the diameter φ1 of the discharge passage 29 is set in a range of about 2 mm to about 8 mm, the diameter φ2 of the communication hole 51 is set in a range of about 1 mm to about 7 mm, and the diameter φ3 of the flow passage 55 is set to about 1 mm. It may be set to a range of about 7 mm. Further, the communication hole 51 may be provided at one place.

Further, in the caps 1, 1A, 1B, 1C, 1D, 1E according to the first to sixth embodiments of the present invention, in the above-described example, slightly viscous contents (eg, soy sauce, cooking oil, etc.) are assumed. However, in the case of using low-viscosity contents such as ponzu and lotion, the caps 1 and 1C of the present invention are used to determine the area or the total area of the openings of the communication holes 51 and 51C of the holder 15. It may be set smaller than the area of the openings of the flow passages 55 and 55C of the body 17 or the total area. In this case, the content is first regulated by the communication holes 51 and 51C, and then passes through the flow passages 55 and 55C and the discharge flow passages 29 and 29C whose opening areas are set to be gradually larger, so that the content is reduced. Flow gradually decreases, and the momentum discharged to the outside can also be reduced. As a result, even a low-viscosity content can be discharged to a discharge location in an appropriate amount.

In the caps 1, 1A, 1B, 1C, 1D, 1E according to the first to sixth embodiments of the present invention, the communication holes 51, 51A, 51B, 51C, 51D, 51E have a circular shape in plan view. However, other shapes such as an ellipse and a quadrangle may be formed, the position and the number of the communication holes may be appropriately changed, and the communication hole may be single. The communication hole is made single, and the radial center of the communication hole is arranged coaxially with the radial center of the holder, or is arranged eccentrically on the side where the container is inclined with respect to the radial center of the holder. Thereby, when the remaining amount of the contents in the squeeze container 3 becomes small, it is possible to prevent the contents from mixing with the air (foaming).

In the cap 1C according to the fourth embodiment, the valve body 17 may be inverted and disposed between the cap body 7 and the holder 15 as in the fifth embodiment. Specifically, the inclined wall portion 17b of the valve body 17 extends obliquely downward from the lower portion of the outer edge of the disc-shaped bottom wall portion 17a toward the outside in the radial direction. The disk-shaped bottom wall portion 17a of the valve body 17 is provided with an intake valve portion 59 (valve portion) surrounding the flow passage 55C on the upper surface thereof. A discharge valve portion 57 (valve portion) surrounding the plurality of communication holes 51C of the holder portion 15 is provided at a lower peripheral portion of the outer periphery of the inclined wall portion 17b. Thereby, the same operation as that of the cap 1A according to the second embodiment is achieved.

In the caps 1, 1A, 1B, 1C, 1D according to the first to fifth embodiments of the present invention, the caps 1, 1A, 1B, 1C, 1D are fitted to the mouth 5 of the squeeze container 3. As in the cap 1E according to the sixth embodiment, a screw fastening method may be used. Also, in the cap 1E according to the sixth embodiment, a method of fitting to the mouth 5 of the squeeze container 3 may be used.

1, 1A, 1B, 1C, 1D cap, 3 squeeze container, 5 mouth, 7 cap body, 11 and 11C discharge nozzle, 15 holder part, 17 valve body, 21 cylindrical outer wall Part, 27 ... ceiling wall, 29, 29C ... discharge passage, 32 ... space, 48 ... passage, 51, 51A, 51B, 51C, 51D ... communication hole, 55, 55A, 55B, 55C, 55D ... flow passage, 57: discharge valve section (valve section), 59: intake valve section (valve section)

Claims (7)

1. A synthetic resin cap fitted to the mouth of the container,
   A cylindrical outer wall having a ceiling wall at the top,
   A discharge nozzle protruding from an upper surface of the ceiling wall and having a discharge flow path penetrating the ceiling wall,
   A holder portion provided on the lower surface of the ceiling wall and having a communication hole communicating with the container;
   A valve body that is held in a space between the ceiling wall and the holder unit and that is always disposed so as to block communication between a discharge passage of the discharge nozzle and a communication hole of the holder unit;
   The valve body has a disc-shaped bottom wall provided with a flow passage in a central portion, an inclined wall portion extending radially outward from an outer peripheral edge of the disc-shaped bottom wall, and the disc-shaped bottom. A valve portion provided so as to surround the flow passage of the wall portion, and a valve portion provided on the outer peripheral edge of the inclined wall portion,
   Each valve portion of the valve body is arranged to be seated on one of the ceiling wall or the holder portion,
   A cap provided so that the discharge passage of the discharge nozzle and the flow passage of the valve body do not overlap in the axial direction.
2. 2. The cap according to claim 1, wherein the valve body held in a space between the ceiling wall and the holder portion includes a valve portion provided so as to surround a flow passage of the disc-shaped bottom wall portion. A cap seated on the bottom surface of the holder portion, and a valve portion provided on an outer peripheral edge of the inclined wall portion is provided so as to be seated on the ceiling wall.
3. 2. The cap according to claim 1, wherein the valve body held in a space between the ceiling wall and the holder portion includes a valve portion provided so as to surround a flow passage of the disc-shaped bottom wall portion. A cap which is seated on a ceiling wall and provided with a valve portion provided on an outer peripheral edge of the inclined wall portion so as to be seated on a bottom surface of the holder portion.
4. {Circle around (3)} The cap according to claim 2, wherein an opening area of the flow passage of the disc-shaped bottom wall portion is formed smaller than an opening area of the discharge passage of the discharge nozzle.
5. The cap according to claim 3, wherein an opening area of the communication hole of the holder portion is formed smaller than an opening area of the discharge channel of the discharge nozzle.
6. The cap according to any one of claims 1 to 5, wherein the flow passage of the valve body and the communication hole of the holder are provided so as not to overlap in the axial direction.
7. In the cap according to any one of claims 1 to 6, the communication hole of the holder portion is single,
   The radial center of the communication hole may be arranged coaxially with the radial center of the holder, or may be arranged eccentrically to the side of the holder inclined with respect to the radial center of the holder. And cap.

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