WO2021210620A1 - Capuchon - Google Patents

Capuchon Download PDF

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Publication number
WO2021210620A1
WO2021210620A1 PCT/JP2021/015495 JP2021015495W WO2021210620A1 WO 2021210620 A1 WO2021210620 A1 WO 2021210620A1 JP 2021015495 W JP2021015495 W JP 2021015495W WO 2021210620 A1 WO2021210620 A1 WO 2021210620A1
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WO
WIPO (PCT)
Prior art keywords
valve body
valve
cap
wall portion
squeeze container
Prior art date
Application number
PCT/JP2021/015495
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English (en)
Japanese (ja)
Inventor
植平　庄治
悟 市川
Original Assignee
東京ライト工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東京ライト工業株式会社 filed Critical 東京ライト工業株式会社
Priority to JP2022515421A priority Critical patent/JPWO2021210620A1/ja
Publication of WO2021210620A1 publication Critical patent/WO2021210620A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge

Definitions

  • the present invention relates to a cap, particularly a cap attached to the mouth of a squeeze container filled with liquid contents such as soy sauce, sauce, and cooking oil.
  • a squeeze container Conventionally, by squeezing (compressing) the body of a squeeze container, the volume inside the squeeze container decreases and the pressure inside the squeeze container increases, and this pressure discharges the contents inside the squeeze container to the outside. I'm letting you.
  • a squeeze container has a cap attached to its mouth. Some of these caps are provided with a valve body, and the valve body opens and closes according to the pressure inside the squeeze container so as to open and seal the inside of the squeeze container and discharge the contents. It prevents liquid dripping and liquid leakage when the container falls over.
  • Patent Document 1 describes a cap body, a lid body connected to the cap body via a hinge, an inner plug having an annular supply cylinder, and a ceiling wall of the cap body and a supply cylinder for the inner plug.
  • a discharge cap with a check valve arranged between them is disclosed.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a cap excellent in productivity and cost by simplifying the valve body of the cap and its mounting configuration.
  • the invention according to claim 1 is a cap fitted to the mouth of a container filled with contents, and has a cylindrical outer wall having a ceiling wall and the above.
  • the valve body is provided with a substantially disk-shaped valve body having an opening that penetrates vertically in the central portion and is provided so as to cover the discharge flow path from below, and the valve body has the valve body and the cylindrical shape.
  • a first valve portion that opens and closes a first flow passage formed between the wall portion and a second valve that opens and closes a second flow passage formed between the valve body and the ceiling wall.
  • the tubular wall portion is characterized in that it holds the valve body and is provided with a valve seat on which the first valve portion is seated.
  • the valve body When the contents of the cap according to claim 1 are used, the valve body is pushed up by the internal pressure of the squeeze container and elastically deformed by squeezing (compressing) the container (squeeze container) and applying internal pressure. Due to this elastic deformation, the first valve portion is separated from the valve seat of the cylindrical wall portion. As a result, the discharge flow path and the inside of the squeeze container communicate with each other through the first flow passage (discharge flow path), and the contents filled in the squeeze container are discharged to the outside. On the other hand, the squeeze container is restored by releasing the squeeze on the squeeze container. As a result, the inside of the squeeze container becomes negative pressure, the valve body itself is restored, and the valve body is pulled toward the squeeze container side, and the valve body is elastically deformed.
  • the first valve portion is seated on the valve seat of the tubular wall portion, the second valve portion is separated from the ceiling wall, and the discharge flow path and the discharge flow path are passed through the second flow path (intake flow path). It communicates directly with the inside of the squeeze container.
  • the contents remaining in the discharge flow path together with the outside air flow (suck) into the squeeze container.
  • the valve body is in the original state (that is, the first valve portion is seated on the valve seat of the tubular wall portion, and the second valve body is the ceiling wall. It is possible to return to the state of being seated on the lower surface of the squeeze container, cut off the communication between the discharge flow path and the inside of the squeeze container, and seal the inside of the squeeze container.
  • valve body since the valve body is slidably supported vertically by the cylindrical wall portion hanging from the lower surface of the ceiling wall, another component for holding the valve body on the cap is required. It is not necessary, it can be simplified, the number of parts can be reduced, the productivity can be improved, and the cost can be reduced.
  • the invention according to claim 2 is the invention according to claim 1, wherein the first valve portion is provided on the lower surface of the inner peripheral edge side of the valve body, and the second valve portion is the outer periphery of the valve body. It is characterized in that it is provided on the upper surface on the veranda side.
  • the squeeze container when the contents are discharged, the squeeze container is squeezed (compressed) and an internal pressure is applied, so that the valve body is pushed up by the internal pressure of the squeeze container and elastically deformed, so that the first valve portion is formed. It is separated from the valve seat of the tubular wall part.
  • the discharge flow path and the inside of the squeeze container communicate with each other via the first flow passage (discharge flow path), and the contents filled in the squeeze container are discharged from the center side of the valve body to the outside.
  • the inside of the squeeze container becomes negative pressure
  • the valve body is pulled toward the squeeze container side, elastically deforms, and the second valve portion is separated from the lower surface of the ceiling wall. ..
  • the discharge flow path and the inside of the squeeze container communicate with each other via the second flow passage (intake flow path), and the contents remaining in the discharge flow path together with the outside air are transferred from the outer peripheral edge side of the valve body to the inside of the squeeze container. Inflow (suction) into.
  • the first valve portion is seated on the valve seat of the cylindrical wall portion, the first flow passage (discharge flow path) is blocked.
  • the pressure inside the squeeze container becomes substantially the same as the atmospheric pressure
  • the valve body returns to the original state, the communication between the discharge flow path and the inside of the squeeze container is cut off, and the inside of the squeeze container is sealed. Can be done.
  • the invention according to claim 3 is the invention according to claim 1, wherein the first valve portion is provided on the lower surface on the outer peripheral edge side of the valve body, and the second valve portion is the inner circumference of the valve body. It is characterized in that it is provided on the upper surface on the veranda side.
  • the squeeze container when the contents are discharged, the squeeze container is squeezed (compressed) and an internal pressure is applied, so that the valve body is pushed up by the internal pressure of the squeeze container and elastically deformed, so that the first valve portion is formed. It is separated from the valve seat of the tubular wall part.
  • the discharge flow path and the inside of the squeeze container communicate with each other via the first flow passage (discharge flow path), and the contents filled in the squeeze container are discharged from the outer peripheral edge side of the valve body to the outside.
  • the inside of the squeeze container becomes negative pressure
  • the valve body is pulled toward the squeeze container side, elastically deforms, and the second valve portion is separated from the lower surface of the ceiling wall. ..
  • the discharge flow path and the inside of the squeeze container communicate with each other via the second flow passage (intake flow path), and the contents remaining in the discharge flow path together with the outside air enter the squeeze container from the center of the valve body. Inflow (suction).
  • the first valve portion is seated on the valve seat of the cylindrical wall portion, the first flow passage (discharge flow path) is blocked.
  • the pressure inside the squeeze container becomes substantially the same as the atmospheric pressure
  • the valve body returns to the original state, the communication between the discharge flow path and the inside of the squeeze container is cut off, and the inside of the squeeze container is sealed. Can be done.
  • the invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the valve body is a plurality of valve bodies facing the ceiling wall at intervals in the circumferential direction. It is characterized in that a movement control unit is provided.
  • the movement restricting portion when the contents in the squeeze container are discharged, the movement restricting portion abuts on the lower surface of the ceiling wall, so that the ascending movement of the valve body (first valve body) can be regulated.
  • the movement restricting portion abuts on the lower surface of the ceiling wall, so that the ascending movement of the valve body (first valve body) can be regulated.
  • the invention according to claim 5 is the invention according to any one of claims 1 to 3, wherein the ceiling wall is spaced apart from the surface of the ceiling wall facing the valve body in the circumferential direction. It is characterized in that a plurality of movement control units are provided.
  • the valve body when the contents in the squeeze container are discharged, the valve body abuts on a plurality of moving description portions provided on the lower surface of the ceiling wall, thereby causing the valve body (first valve body) to come into contact with the valve body. Ascending movement can be regulated. Thereby, the same effect as that of the above-mentioned claim 4 can be obtained.
  • the invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the ceiling wall is provided with a recess for accommodating the valve body. ..
  • valve body since the valve body is housed in the recess of the ceiling wall, the amount of the contents remaining when used up can be reduced. Further, when a plurality of caps to which the valve bodies are attached are put into a carton or the like and transported, it is possible to prevent the valve bodies from being damaged or deformed by the caps of each other.
  • the cap of the present invention it is possible to provide a cap excellent in productivity and cost by simplifying the valve body of the cap and its mounting configuration.
  • FIG. 1A is a plan view
  • FIG. 1B is a bottom view
  • FIG. 1C is an end view taken along the line AA of FIG. .
  • the valve body of the cap body shown in FIG. 1 is shown, (a) is a plan view, (b) is a bottom view, and (c) is a cross-sectional view taken along the line BB of FIG. 3 (a).
  • FIG. 1 is shown, (a) is a cross-sectional view at the time of discharge, and (b) is a cross-sectional view at the time of intake.
  • the fitting state of the valve body and the cap body shown in FIG. 1 is shown, (a) is a state before fitting, (b) is a state during fitting, and (c) is a state after fitting.
  • It is a schematic partial enlarged view which shows the mold release process of the cylindrical wall part shown in FIG. It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 2nd Embodiment of this invention.
  • the discharge nozzle of the cap body and the lid shown in FIG. 7 are shown, FIG. 7A is a bottom view, and FIG.
  • FIG. 7B is an end view taken along the line CC of FIG.
  • the valve body of the cap body shown in FIG. 7 is shown, FIG. 7A is a plan view, FIG. 7B is a bottom view, and FIG. 7C is a cross-sectional view taken along the line DD of FIG. 9A.
  • the use state of the cap shown in FIG. 7 is shown, (a) is a cross-sectional view at the time of discharge, and (b) is a cross-sectional view at the time of intake. It is sectional drawing of the cap attached to the mouth part of the squeeze container which concerns on 3rd Embodiment of this invention. It is a bottom view of the discharge nozzle of the cap body shown in FIG. 11 and the lid body.
  • FIG. 11 is shown, (a) is a plan view, (b) is a bottom view, and (c) is a cross-sectional view taken along the line EE of FIG. 13 (a).
  • the use state of the cap shown in FIG. 11 is shown, (a) is a cross-sectional view at the time of discharge, and (b) is a cross-sectional view at the time of intake.
  • the cap 1A according to the first embodiment of the present invention is attached to the mouth portion 5 of the container 3 (squeeze container).
  • the cap 1A is roughly composed of a cap body 11 including a discharge nozzle 37, a lid body 13 connected to the cap body 11 by a hinge 17, and a valve body 15.
  • the squeeze container 3 is a container formed of a synthetic resin such as polyethylene or polyethylene terephthalate (PET) and having a shape in which the body is easily deformed or restored, and the inside thereof is filled with a fluid content.
  • the contents include ponzu sauce, soy sauce, cooking oil, sauce, lotion and the like.
  • the squeeze container 3 is of a type in which the contents are discharged by applying internal pressure such as by squeezing (compressing) the body (not shown).
  • the mouth portion 5 of the squeeze container 3 is formed with an engaging ridge portion 21 that engages with the ridge portion 43 of the cap body 11, which will be described later, on the outer peripheral portion thereof.
  • the protrusion 23 serving as a receiving portion (holding portion) for preventing the buckling deformation of the body portion of the squeeze container 3 is engaged. It is formed below the portion 21.
  • the cap body 11 of the cap 1A has a cylindrical outer wall portion 31 formed of a synthetic resin such as polyethylene and fitted with the mouth portion 5 of the squeeze container 3, and the cylindrical shape.
  • a ceiling wall 33 that closes the upper part of the outer side wall portion 31, a cylindrical inner side wall portion 35 that is concentrically provided inside the cylindrical outer wall portion 31 and hangs down from the ceiling wall 33, and a cylindrical inner side wall portion 35.
  • a discharge nozzle 37 integrally projecting upward from the inner ceiling wall 33, and a cylindrical wall portion provided inside the cylindrical outer wall portion 31 and the cylindrical inner side wall portion 35 and hanging from the ceiling wall 33. It is composed of 39 and.
  • the discharge nozzle 37 has a discharge flow path 41 that leads from the lower surface to the upper surface of the ceiling wall 33, and the tip thereof is formed so as to increase in diameter from the proximal end side toward the distal end. Further, the radial center of the discharge flow path 41 of the discharge nozzle 37 is eccentric to the side opposite to the hinge 17 with respect to the radial center of the cylindrical outer wall portion 31 (see FIGS. 1 and 2).
  • the cylindrical outer wall portion 31 is formed with an annular ridge portion 43 protruding inward in the radial direction, which engages with the engaging ridge portion 21 of the mouth portion 5 of the squeeze container 3 at the inner peripheral portion of the tip thereof. ..
  • a space 45 (see FIGS. 1 and 2) for inserting the mouth portion 5 of the squeeze container 3 is formed between the cylindrical outer wall portion 31 and the cylindrical inner side wall portion 35.
  • the radial outer surface of the cylindrical inner side wall portion 35 is in close contact with the radial inner surface of the mouth portion 5 of the squeeze container 3 (see FIG. 1).
  • the ceiling wall 33 is provided with a plurality of movement restricting portions 75 having a substantially hemispherical cross-sectional view, which are provided on the lower surface thereof at intervals in the circumferential direction so as to surround the cylindrical wall portion 39. In this embodiment, four are provided at intervals of 90 ° in the circumferential direction.
  • the tubular wall portion 39 is provided with an annular flange 47 extending radially outward, which holds the valve body 15 and functions as a valve seat of the valve body 15 (discharge valve portion 69) at the lower end peripheral edge thereof. .. Further, on the outer peripheral wall of the tubular wall portion 39, a plurality of centering 49s (positioning portions, four in the first embodiment) for positioning the valve body 15 extending in the longitudinal direction at predetermined intervals in the circumferential direction are formed. (See FIGS. 1 and 2 (c))).
  • the connecting surface between the outer peripheral surface of the tubular wall portion 39 on the base end side and the ceiling wall 33 has a concave curved surface.
  • the connecting surface between the outer peripheral surface of the tubular wall portion 39 and the outer peripheral end surface of the annular flange 47 exhibits a concave curved surface.
  • the wall thickness dimension t (see FIG. 5C) of the tubular wall portion 39 is set to about 0.3 mm to about 1.0 mm.
  • the annular flange 47 has a predetermined wrap amount d (in this embodiment, about 0.4 mm) while having a predetermined strength so that the valve body 15 does not fall off from the cap body 11 during distribution or discharge of contents. ) (See FIG. 5 (c)).
  • the annular flange 47 has an arcuate outer peripheral surface and an upper end surface is obliquely inclined outward in the radial direction so that the valve body 15 can be easily fitted to the tubular wall portion 39.
  • the inclination angle ⁇ of the upper end surface of the annular flange 47 is ⁇ so that the valve body 15 does not come off from the tubular wall portion 39 (FIG. 5 (c)) is set to about 20 °.
  • the dimensions of the lap amount d and the inclination angle ⁇ described above may be changed as appropriate.
  • the cylindrical wall portion 39 has an outer peripheral surface and an inner peripheral surface on the base end side thereof and a connecting surface between the ceiling wall 33, and an outer peripheral surface of the tubular wall portion 39 and an outer peripheral end surface of the annular flange 47.
  • the connecting surface into a concave curved surface and forming the outer peripheral surface of the annular flange 47 into an arc shape (when the mold is removed, see FIG. 6). It is possible to suppress breakage of the cylindrical wall portion 39 and mold release defects such as turning of the annular flange 47.
  • the tubular wall portion 39 is deformed in the radial direction of the tubular wall portion 39 at the time of mold release (see FIG. 6C), but the force at the time of mold release (the radial inside of the tubular wall portion 39). When the force applied to the object is removed, it can be returned to its original state by its own restoring force.
  • the lid 13 covered with the cap body 11 opens and closes the discharge flow path 41 of the discharge nozzle 37, and covers or opens the upper surface of the cap body 11.
  • the lid body 13 is integrally connected to the upper edge of the cylindrical outer wall portion 31 of the cap body 11 via a hinge 17. Further, on the outer peripheral wall of the lid body 13, a protrusion 51 on the opposite side of the hinge 17 is provided on which a finger or a nail is hooked when the user opens the lid body 13. Further, the lid body 13 is provided with a cylindrical plug portion 53 that is closely fitted to the discharge flow path 41 at a position facing the discharge flow path 41 projecting from the upper surface of the cap body 11 on the lower surface thereof. NS.
  • the lid body 13 is formed with a ridge locking portion 55 extending in an annular shape in the circumferential direction on the lower edge of the inner peripheral surface thereof. Further, a ridge locking portion 57 extending in an annular shape along the circumferential direction is formed on the upper surface of the outer periphery of the ceiling wall 33, and when the lid 13 is covered on the ceiling wall 33, the ridges of the lid 13 are formed. The locking portion 55 and the ridge locking portion 57 of the ceiling wall 33 engage.
  • the valve body 15 has a substantially disk shape having an opening penetrating vertically in the center, and the contents flowing between the discharge flow path 41 of the discharge nozzle 37 and the inside of the squeeze container 3. And it is elastically deformable to communicate or block the flow of outside air.
  • the valve body 15 is formed from a relatively flexible synthetic resin such as low-density polyethylene, and has a disc-shaped bottom wall portion 61 having an opening 65 penetrating vertically in the center and a disc-shaped bottom wall portion.
  • the slanted wall portion 63 extending diagonally upward from the outer peripheral upper edge portion of 61 and the disc-shaped bottom wall portion 61 extending radially outward from the outer peripheral lower edge portion of the disc-shaped bottom wall portion 61. It is composed of an annular extending portion 62, and has a size that covers the discharge flow path 41 from below when the opening 65 is inserted through the tubular wall portion 39.
  • the disk-shaped bottom wall portion 61 has a convex curved surface at a portion where the lower surface 61a and the lower inner wall of the opening 65 are in contact with each other, and that portion is the valve seat of the tubular wall portion 39, that is, the annular shape of the tubular wall portion 39.
  • valve portion 69 discharge valve portion 69, first valve portion
  • the tip of the outer peripheral portion of the slanted wall portion 63 of the valve body 15 is provided so as to surround the discharge flow path 41 of the discharge nozzle 37 in an annular shape depending on the size of the mounting position and the slanted wall portion 63, and is provided on the lower surface of the ceiling wall 33.
  • It is configured as an intake valve portion 73 (second valve portion) that takes off and sits on the ceiling and functions as a valve portion. In normal times, the intake valve portion 73 is in contact with the ceiling wall 33.
  • the valve body 15 is set so that the thickness dimension of the inclined wall portion 63 is smaller than the thickness dimension of the disk-shaped bottom wall portion 61 so as to be easily elastically deformed (in the present embodiment, about 0. It is set to 2 mm to about 0.5 mm).
  • the dimension H1 from the lower surface 61a of the disc-shaped bottom wall portion 61 to the tip of the inclined wall portion 63 is such that the valve body 15 is attached to the tubular wall portion 39.
  • the dimensional difference from the dimensional H2 at the time of mounting is about 0.1 mm to about 0.6 mm by bending at the time of bending.
  • the thickness of the inclined wall portion 63 and the dimensional difference between the dimensional H1 and the dimensional H2 may be appropriately changed.
  • the first discharge flow path 41 of the discharge nozzle 37 and the inside of the squeeze container 3 communicate with each other when the contents are discharged.
  • a flow passage 67 discharge flow path
  • a second flow passage 79 for guiding the outside air into the squeeze container 3 when the discharge of the contents is stopped is formed between the lower surface of the ceiling wall 33 and the intake valve portion 73 of the valve body 15 ( See FIG. 4 (b)).
  • the discharge nozzle 37 is arranged so that the first flow passage 67 does not overlap the discharge flow path 41 of the discharge nozzle 37 in the axial direction (see the axes L1 and L2 in FIG. 4A).
  • the inner peripheral wall portion of the opening 65 of the valve body 15 is formed with a tapered guide portion 71 so as to be easily fitted to the tubular wall portion 39 (see FIGS. 3 (c) and 5).
  • the lower surface of the ceiling wall 33 facing the intake valve portion 73 functions as a valve seat.
  • FIG. 5 first, with the intake valve portion 73 of the valve body 15 facing the ceiling wall 33, the guide portion 71 of the valve body 15 abuts on the arcuate surface of the flange 47 of the tubular wall portion 39. And push the valve body 15 upward (see FIG. 5A).
  • the tubular wall portion 39 narrows inward in the radial direction, while the inside of the opening 65 of the valve body 15. The peripheral wall is widened (see the arrow in FIG. 5B).
  • valve body 15 can be moved to the proximal end side (that is, upward) of the tubular wall portion 39. Then, when the lower surface 61a of the disc-shaped bottom wall portion 61 of the valve body 15 exceeds the flange 47 of the tubular wall portion 39, the opening 65 of the cylindrical wall portion 39 and the disc-shaped bottom wall portion 61 of the valve body 15 Is restored, the joint portion between the lower surface of the disc-shaped bottom wall portion 61 of the valve body 15 and the opening 65 becomes the valve portion, and is seated on the upper surface of the flange 47 of the cylindrical wall portion 39, and the valve body 15 is a cylindrical wall. It is supported so as to be slidable up and down along the portion 39 (see FIG. 5C). Further, the intake valve portion 73 of the valve body 15 is seated on the lower surface of the ceiling wall 33 (see FIG. 5C). As a result, the assembly of the valve body 15 to the cap 1A is completed.
  • the operation of the cap 1A according to the first embodiment of the present invention will be described with reference to FIG.
  • the lid 13 is opened to expose the discharge nozzle 37 to the outside.
  • the discharge valve portion 69 and the intake valve portion 73 of the valve body 15 are on the flange 47 of the cylindrical wall portion 39. They remain seated on the end face and the underside of the ceiling wall 33, respectively (see FIG. 1).
  • the discharge nozzle 37 is directed downward to squeeze the body of the squeeze container 3, and internal pressure is applied to the inside of the squeeze container 3. Due to this internal pressure, the contents push up the lower surface of the valve body 15, and the valve body 15 is elastically deformed, so that the disc-shaped bottom wall portion 61 is restricted to the centering 49 along the outer peripheral surface of the cylindrical wall portion 39.
  • the discharge valve portion 69 of the valve body 15 is lifted while being moved, and the discharge valve portion 69 of the valve body 15 is separated from the upper surface of the flange 47 of the cylindrical wall portion 39 (see FIG. 4A).
  • the first flow passage 67 is formed between the inner peripheral wall portion of the opening 65 of the valve body 15 and the outer peripheral wall portion of the tubular wall portion 39, so that the discharge flow in the squeeze container 3 and the discharge nozzle 37 It communicates with the road 41. Further, the intake valve portion 73 of the valve body 15 is pressed against the lower surface of the ceiling wall 33 by the internal pressure and remains seated. As a result, the contents in the squeeze container 3 pass through the first flow passage 67, hit the lower surface of the ceiling wall 33, and then are discharged to the outside through the discharge flow path 41 of the discharge nozzle 37 (FIG. 4A). See the arrow).
  • the upper surface of the disc-shaped bottom wall portion 61 of the valve body 15 comes into contact with the four movement restricting portions 75 of the ceiling wall 33, so that the upper surface of the disc-shaped bottom wall portion 61 of the valve body 15 is the ceiling wall 33.
  • the contents can be smoothly flowed from between the four movement control units 75 while maintaining an interval between the two.
  • the area of the opening of the first flow passage 67 between the inner peripheral wall portion of the opening 65 of the valve body 15 and the outer peripheral wall portion of the tubular wall portion 39 is the area of the distribution inlet 77 (see FIG. 4A). Since it is smaller, the flow rate of the contents passing through the first flow passage 67 is regulated, the amount to be discharged to the outside can be limited, and an appropriate amount can be discharged.
  • the contents pass through the first flow passage 67, the contents collide with the lower surface of the ceiling wall 33, change the course, and head toward the discharge flow path 41. As a result, the momentum of the flow of the contents is weakened, and it is possible to prevent the contents from being vigorously discharged to the outside.
  • the valve body 15 is restored, and the discharge valve portion 69 and the intake valve portion 73 are formed on the upper surface and the ceiling wall 33 of the flange 47 of the tubular wall portion 39.
  • the discharge flow path 41 and the inside of the squeeze container 3 are blocked (that is, the first flow passage 67 and the second flow passage 79 are closed).
  • the hinge 17 is bent and the lid 13 is covered so as to cover the upper surface of the cap body 11, the ridge locking portion 55 of the lid 13 engages with the ridge locking portion 57 of the ceiling wall 33.
  • the cylindrical plug portion 53 is tightly fitted to the inner wall surface of the discharge nozzle 37 having a small amount of remaining contents, the discharge nozzle and the cylindrical plug portion 53 and its surroundings are less likely to be contaminated with the contents, and the discharge nozzle and the cylindrical plug portion 53 are not easily contaminated with the contents.
  • the flow path 41 can be sealed and shut off (see FIG. 1).
  • the cap 1A is composed of a cap body 11 including a discharge nozzle 37, a lid body 13 connected to the cap body 11, and a valve body 15. Since the valve body 15 is supported by the tubular wall portion 39 of the cap body 11, the number of parts constituting the cap 1A can be reduced, and the production cost can be suppressed while simplifying the configuration of the cap 1A.
  • the first flow passage 67 discharge flow path between the inner peripheral wall portion of the opening 65 of the valve body 15 and the outer peripheral wall portion of the tubular wall portion 39. Since the area of the opening is smaller than the area of the distribution inlet 77, when the contents flowing from the squeeze container 3 pass through the first flow passage 67, the flow rate of the contents is regulated and discharged from the discharge nozzle 37 to the outside. The amount of the contents can be suppressed, and an appropriate amount can be discharged to the discharge location.
  • the first flow passage 67 between the inner peripheral wall portion of the opening 65 of the valve body 15 and the outer peripheral wall portion of the tubular wall portion 39, and the discharge nozzle 37. Since the discharge flow path 41 does not overlap with the discharge flow path 41 in the axial direction, the contents that have passed through the first flow passage 67 once collide with the lower surface of the ceiling wall 33, and while weakening the momentum of the flow of the contents, the discharge flow path 41 Since it is guided, the momentum of discharge can be weakened.
  • the cap 1A when the pressing of the body portion of the squeeze container 3 is released, the pressure inside the squeeze container 3 becomes negative pressure, and the valve body 15 is pulled toward the squeeze container 3 side. By elastically deforming, the intake valve portion 73 is separated from the lower surface of the ceiling wall 33. As a result, the contents remaining in the discharge nozzle 37 are sucked into the squeeze container 3 together with the outside air, so that it is possible to prevent the liquid from dripping when the contents are discharged again.
  • the disc-shaped bottom wall portion 61 has a convex curved surface at a portion where the lower surface 61a thereof and the lower inner wall of the opening 65 are in contact with each other, whereby a short mold is formed at the time of molding. Is unlikely to occur, and the tubular wall portion 39 can be reliably separated from the upper end surface of the flange 47, so that the sealing performance can be stabilized. Since the thickness dimension of the disk-shaped bottom wall portion 61 is set to be larger than the thickness dimension of the inclined wall portion 63, the opening 65 is difficult to expand, so that it is difficult to come off from the cylindrical wall portion 39. ..
  • valve body 15 has the extension portion 62, when the valve body 15 is removed from the mold (at the time of mold release), the extension portion 62 is used as a forcible punching portion, and the mold on the extension portion 62 side is first used. Since it functions so as to remain in the mold, the valve body 15 can be reliably released from the mold.
  • cap 1B according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 10.
  • the same reference numerals are used for the same parts, and only different parts will be described in detail.
  • the cap 1B according to the second embodiment and the cap 1A according to the first embodiment are the ceiling wall 33 of the cap body 11, the cylindrical wall portion 81 of the cap body 11 corresponding to the cylindrical wall portion 39 of the first embodiment, and the like.
  • the structure of the valve body 15 is different, and the other structures are the same.
  • the lower surface of the ceiling wall 33 of the cap body 11 is a flat surface.
  • the cylindrical wall portion 81 of the cap body 11 is provided near the cylindrical inner side wall portion 35 and is provided so as to surround the discharge flow path 41 of the discharge nozzle 37.
  • the tubular wall portion 81 is provided with an annular flange 83 extending inward in the radial direction at the tip thereof, which functions as a valve seat of a step portion 91 (discharge valve portion) of the valve body 15 described later. Further, a plurality of centering 49s extending in the vertical direction at appropriate intervals are provided on the inner peripheral wall of the cylindrical wall portion 81 (four in the second embodiment).
  • the valve body 15 has a substantially disk shape that is elastically deformable and has an opening that penetrates vertically in the center, and has an outer edge wall portion 85 and an inner peripheral surface of the outer edge wall portion 85. It is composed of a slanted wall portion 87 extending diagonally upward from the upper portion inward in the radial direction, and an opening 65 formed in the central portion of the slanted wall portion 87 and penetrating vertically.
  • the valve body 15 is set so that the thickness dimension of the inclined wall portion 87 is smaller than the thickness dimension of the outer edge wall portion 85 so as to be easily elastically deformed.
  • the outer peripheral wall portion 85 has a tapered guide portion 89 formed on the upper portion of the outer peripheral surface thereof, and a step portion 91 formed on the lower portion of the outer peripheral surface.
  • the step portion 91 is detached and seated on the upper surface of the annular flange 83 of the cylindrical wall portion 81, and functions as a valve portion (first valve portion, discharge valve portion).
  • An intake valve portion 93 (second valve portion) having a substantially hemispherical cross section is provided on the peripheral edge of the opening 65 provided above the inner peripheral edge portion of the inclined wall portion 87.
  • a first unit that communicates the discharge flow path 41 of the discharge nozzle 37 with the inside of the squeeze container 3 when the contents are discharged.
  • a flow passage 97 discharge flow path
  • a second flow passage 99 for guiding the outside air into the squeeze container 3 is formed between the lower surface of the ceiling wall 33 and the intake valve portion 93 of the valve body 15 when the discharge of the contents is stopped (FIG. FIG. 10 (b)).
  • the outer edge wall portion 85 is provided with a plurality of movement restricting portions 95 having a substantially rectangular cross-sectional view provided at intervals in the circumferential direction so as to surround the discharge flow path 41 of the discharge nozzle 37 on the upper surface thereof. (In the second embodiment, four are provided at intervals of 90 ° in the circumferential direction).
  • the operation of the cap 1B according to the second embodiment of the present invention will be described with reference to FIG.
  • FIG. 10A when the contents in the squeeze container 3 are discharged, the body of the squeeze container 3 is squeezed with the discharge nozzle 37 facing downward, and the internal pressure is applied to the inside of the squeeze container 3. At this time, the internal pressure pushes up the lower surfaces of the inclined wall portion 87 and the outer edge wall portion 85 of the valve body 15. As a result, the intake valve portion 93 of the valve body 15 is pressed against the ceiling wall 33, the valve body 15 is elastically deformed, and the outer edge wall portion 85 rises along the inner surface of the tubular wall portion 81 to valve.
  • the step portion 91 of the outer edge wall portion 85 of the body 15 is separated from the annular flange 83 of the tubular wall portion 81.
  • the content is the first flow passage 97 (discharge flow path) formed between the inner peripheral portion of the annular flange 83 of the tubular wall portion 81 and the outer peripheral portion of the outer edge wall portion 85 of the valve body 15. After hitting the lower surface of the ceiling wall 33, it is discharged to the outside through the discharge flow path 41 of the discharge nozzle 37 (see the arrow in FIG. 10A).
  • the first flow passage 97 between the inner peripheral portion of the annular flange 83 of the tubular wall portion 81 and the outer peripheral portion of the outer edge wall portion 85 of the valve body 15 is blocked, but the second flow passage 99 ( A path for communicating the discharge flow path 41 of the discharge nozzle 37 with the squeeze container 3 is formed via the intake flow path).
  • the outside air passes through the second flow passage 99 and flows into (sucks) into the squeeze container 3 together with the contents remaining in the discharge flow path 41 (see the arrow in FIG. 10B). Is less likely to remain in the discharge nozzle 37 of the cap 1B, and is less likely to drip.
  • the valve body 15 is restored, and the step portion 91 (discharge valve portion) and the intake valve portion 93 are the annular flange 83 of the tubular wall portion 81. And sitting on the inner wall surface of the ceiling wall 33, the communication between the discharge flow path 41 and the inside of the squeeze container 3 is cut off.
  • the contents in the squeeze container 3 are discharged to the outside from the first flow passage 97 through the discharge flow path 41 of the discharge nozzle 37. Then, when the discharge of the contents is stopped, the discharge flow path 41 of the discharge nozzle 37 and the squeeze container 3 are communicated with each other through the second flow passage 99 of the valve body 15, and the inside of the discharge flow path 41 of the cap 1B together with the outside air. The contents remaining in the squeeze container 3 flow into the squeeze container 3. As a result, the same action and effect as that of the cap 1A according to the first embodiment described above can be obtained.
  • cap 1C according to the third embodiment of the present invention will be described with reference to FIGS. 11 to 14.
  • the same reference numerals are used for the same parts, and only different parts will be described in detail.
  • the cap 1C according to the third embodiment and the cap 1A of the first embodiment are different in the configuration of the cap main body 11 (ceiling wall 33) of the first embodiment and the configuration of the valve body 15, and other The configuration is the same.
  • the ceiling wall 33 of the cap body 11 is formed with a recess 101 for accommodating the valve body 15 inside.
  • the bottom surface of the recess 101 is a flat surface.
  • the disc-shaped bottom wall portion 61 of the valve body 15 is provided with a plurality of movements in a substantially hemispherical cross-sectional view provided at intervals in the circumferential direction so as to surround the opening 65 on the upper surface thereof.
  • Regulators 76 are provided (in this embodiment, four are provided at intervals of 90 ° in the circumferential direction).
  • a cross-sectional view is provided on the outer peripheral upper edge portion of the slanted wall portion 63 of the valve body 15 so as to surround the discharge flow path 41 of the discharge nozzle 37 in an annular shape depending on the size of the mounting position and the slanted wall portion 63.
  • a substantially hemispherical intake valve portion 73 (second valve portion) is provided. In normal times, the intake valve portion 73 is in contact with the bottom surface of the recess 101 of the ceiling wall 33.
  • the operation of the cap 1C according to the third embodiment of the present invention will be described with reference to FIG.
  • FIG. 14A when the contents in the squeeze container 3 are discharged, the body of the squeeze container 3 is squeezed with the discharge nozzle 37 facing downward, and the internal pressure is applied to the inside of the squeeze container 3.
  • the valve body 15 When the internal pressure pushes up the lower surface of the valve body 15, the valve body 15 is elastically deformed, and the disc-shaped bottom wall portion 61 is centered along the outer peripheral surface of the cylindrical wall portion 39.
  • the discharge valve portion 69 of the valve body 15 is separated from the upper surface of the flange 47 of the cylindrical wall portion 39.
  • the contents in the squeeze container 3 pass through the first flow passage 67, hit the bottom surface of the recess 101 of the ceiling wall 33, and then are discharged to the outside through the discharge flow path 41 of the discharge nozzle 37 (FIG. 14). (See the arrow in (a)).
  • the four movement restricting portions 76 of the valve body 15 abut against the bottom surface of the recess 101 of the ceiling wall 33, so that the upper surface of the disc-shaped bottom wall portion 61 of the valve body 15 is spaced from the ceiling wall 33. It can be maintained and confronted, and the contents can be smoothly flowed between the four movement control units 76.
  • the valve body 15 is restored, the discharge valve portion 69 is seated on the upper end surface of the annular flange 47 of the cylindrical wall portion 39, and the intake valve The portion 73 sits on the bottom surface of the recess 101 of the ceiling wall 33 to block the communication between the discharge flow path 41 and the inside of the squeeze container 3.
  • the contents of the squeeze container 3 pass through the first flow passage 67, hit the bottom surface of the recess 101 of the ceiling wall 33, and then the discharge flow path of the discharge nozzle 37. It is discharged to the outside through 41.
  • the contents of the squeeze container 3 communicate with the discharge flow path 41 of the discharge nozzle 37 and the squeeze container 3 through the second flow passage 79, together with the outside air.
  • the contents remaining in the discharge flow path 41 of the cap 1C flow into the squeeze container 3.
  • the valve body 15 is housed in the recess 101, so that the amount of contents remaining at the time of use up can be reduced. Further, when a plurality of caps 1C with the valve bodies 15 attached are put into a carton or the like and transported, it is possible to prevent the valve bodies 15 from being damaged or deformed by each other's caps 1C.
  • the movement control units 75, 76, and 95 are provided, but the number may be changed as appropriate. good.
  • the movement restricting units 75 and 76 have a substantially semicircular cross-sectional view in the caps 1A and 1C according to the first and third embodiments, and a rectangular cross-sectional view in the cap 1B according to the second embodiment. However, it may have another shape such as a trapezoid.
  • four movement restricting portions 95 are provided on the upper surface of the outer edge wall portion 85 of the valve body 15, but the ceiling wall 33 facing the upper surface of the outer edge wall portion 85 is provided.
  • a movement restricting portion may be provided on the lower surface of the.
  • the tips of the intake valve portions 73 and 93 of the valve body 15 have a hemispherical cross-sectional view. It may be in the shape of.
  • the intake valve portion 73 provided at the tip of the outer peripheral portion of the inclined wall portion 63 of the valve body 15 is presented in another shape such as a substantially hemispherical cross-sectional view or a trapezoidal shape. good.
  • the cap body 11 and the lid body 13 are integrally provided via the hinge 17, but the cap body and the lid body are integrally provided. And may be separated.
  • the caps 1A, 1B, and 1C are fitted in the mouth portion 5 of the squeeze container 3, but a screw fitting method may be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un capuchon qui est excellent quant à la productivité et au coût par simplification d'un corps de soupape du capuchon et de la conception de fixation du corps de soupape. La solution de l'invention porte sur un capuchon (1A) fixé à une partie goulot (5) d'un récipient compressible (3) comprenant : un corps de capuchon (11) comprenant une buse de sortie (37); un corps de couvercle (13) relié au corps de capuchon (11) par l'intermédiaire d'une charnière; et un corps de soupape (15). Le corps de soupape (15) est conçu de sorte qu'une partie jonction entre une surface inférieure d'une section paroi inférieure discoïde (61) du corps de soupape et une ouverture (65) soit placée sur une surface supérieure d'une bride (47) d'une section paroi cylindrique (39), et le corps de soupape (15) est soutenu verticalement coulissant sur la section paroi cylindrique (39). Par conséquent, le corps de soupape est simplifié, et le nombre d'éléments est réduit, ce qui permet d'obtenir une excellente productivité et une importante réduction des coûts.
PCT/JP2021/015495 2020-04-14 2021-04-14 Capuchon WO2021210620A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023048141A1 (fr) * 2021-09-22 2023-03-30 東京ライト工業株式会社 Capuchon

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02102371U (fr) * 1989-02-02 1990-08-15
JPH0826320A (ja) * 1994-07-14 1996-01-30 Japan Crown Cork Co Ltd スクイズボトル用キャップ
US20190023463A1 (en) * 2016-01-22 2019-01-24 Rieke Packaging Systems Limited Dispensing closures and dispensers
JP2019142566A (ja) * 2018-02-22 2019-08-29 東京ライト工業株式会社 キャップ及び吐出容器
WO2020017648A1 (fr) * 2018-07-19 2020-01-23 東京ライト工業株式会社 Capuchon

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02102371U (fr) * 1989-02-02 1990-08-15
JPH0826320A (ja) * 1994-07-14 1996-01-30 Japan Crown Cork Co Ltd スクイズボトル用キャップ
US20190023463A1 (en) * 2016-01-22 2019-01-24 Rieke Packaging Systems Limited Dispensing closures and dispensers
JP2019142566A (ja) * 2018-02-22 2019-08-29 東京ライト工業株式会社 キャップ及び吐出容器
WO2020017648A1 (fr) * 2018-07-19 2020-01-23 東京ライト工業株式会社 Capuchon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023048141A1 (fr) * 2021-09-22 2023-03-30 東京ライト工業株式会社 Capuchon

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