Powder ejection container

Abstract

To provide a powder dispensing container that can limit the range of powder discharge. [Solution] A powder dispensing container comprising a container body 2, a cap body 3, a valve member 7, and a valve support member 8, wherein the cap body 3 has a discharge cylinder 5d extending upward to a discharge port 5c and a pressure dissipator plate 5e located directly below the discharge port 5c, the valve member 7 has a slit valve 7a located directly below the pressure dissipator plate 5e, and the valve support member 8 has a blockage prevention plate 8d located directly below the slit valve 7a, the slit valve 7a having an inverted dome shape that protrudes downward, and by squeezing the body portion 2b of the container body 2 in an inverted position, the powder inside the container body 2 passes through the internal flow path 8e of the valve support member 8, inverts the slit valve 7a to a dome shape, passes through the slit 7a1 of the slit valve 7a, and is discharged from the discharge port 5c, and the distance A between the pressure dissipator plate 5e and the slit valve 7a when the slit valve 7a is in a dome shape is greater than 0 mm and less than or equal to 6 mm.

Description

Technical Field

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

Background Art

[0002] As a powder discharge container that can accommodate foods such as beverages and can be easily discharged as needed, it is known to have a container body having a mouth part, a body part, and a bottom part connected in this order with the openings facing downward, a cap body, a valve member, and a valve support member attached to the cap body and supporting the valve member (see, for example, Patent Document 1).

[0003] The cap body has a mounting cylinder mounted on the outer peripheral surface of the mouth part, an annular top wall connected to the mounting cylinder and supported on the upper end surface of the mouth part, a discharge cylinder extending upward from the inner peripheral edge of the annular top wall to the discharge port, a damping plate located directly below the discharge port, and a plurality of connecting parts arranged with a gap in the circumferential direction and connecting the damping plate to the discharge cylinder. The valve member has a slit valve located directly below the damping plate and an annular supported part connected to the outer peripheral edge of the slit valve. The discharge cylinder has an upper support surface that supports the upper surface of the supported part of the valve member. The valve support member has a lower support surface that supports the lower surface of the supported part of the valve member, a clogging prevention plate located below the lower support surface and directly below the slit valve, and an internal flow path that passes radially inward between the lower support surface and the clogging prevention plate and leads to the slit valve. The slit valve has a slit passing through the central part of the slit valve and has an inverted dome shape protruding downward.

[0004] By squeezing the body part in an inverted posture, the powder in the container body passes through the internal flow path of the valve support member, is inverted so as to form a dome shape protruding upward through the slit valve, passes through the slit, hits against the lower surface of the damping plate, and is discharged from the discharge port through the gaps of the plurality of connecting parts. According to the slit valve and the damping plate, an appropriate amount of powder can be easily discharged according to the strength of squeezing. Also, according to the clogging prevention plate, it is possible to prevent the powder from aggregating and clogging in front of the slit valve during squeezing.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2019-189297 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The powder dispensing container described above is preferable if it can suppress the dispensing of powder over a wide area and into containers such as teacups or glasses, preventing the powder from being dispensed outside the container.

[0007] Therefore, the object of the present invention is to provide a powder dispensing container that can limit the dispensing range of the powder. [Means for solving the problem]

[0008] One embodiment of the present invention is as follows:

[0009] [1] The container has a main body with a mouth, a body, and a bottom arranged in that order with the mouth facing downwards, a cap body, a valve member, and a valve support member attached to the cap body and supporting the valve member. The cap body comprises a mounting cylinder attached to the outer circumferential surface of the opening, an annular top wall connected to the mounting cylinder and supported on the upper end surface of the opening, a discharge cylinder extending upward from the inner circumferential edge of the annular top wall to the discharge port, a pressure reducing plate located directly below the discharge port, and a plurality of connecting parts arranged with gaps in the circumferential direction, each connecting the pressure reducing plate to the discharge cylinder. The valve member has a slit valve located directly below the energy dissipation plate and an annular supported portion connected to the outer peripheral edge of the slit valve. The discharge cylinder has an upper support surface that supports the upper surface of the supported portion of the valve member, The valve support member has a lower support surface that supports the lower surface of the supported portion of the valve member, a blockage prevention plate located below the lower support surface and directly below the slit valve, and an internal flow path that passes radially inward between the lower support surface and the blockage prevention plate toward the slit valve. The slit valve has a slit passing through the central part of the slit valve and has an inverted dome shape that protrudes downward, By squeezing the body in an inverted position, the powder inside the container body passes through the internal flow path of the valve support member, inverts the slit valve so that it becomes a dome shape protruding upward, passes through the slit, strikes the lower surface of the energy dissipator plate, passes through the gaps of the multiple connecting parts, and is discharged from the discharge port. A powder discharge container in which, when the slit valve is inverted to form the dome shape, the vertical distance A between the lower surface of the energy dissipator and the upper surface of the slit valve is greater than 0 mm and less than or equal to 6 mm.

[0010] [2] The discharge cylinder has a cylindrical wall extending upward from the upper support surface, a diameter-reducing wall that narrows in diameter upward from the upper end of the cylindrical wall, an upper cylindrical wall extending upward from the inner periphery of the diameter-reducing wall, and a lip portion that widens in diameter and thins in wall so as to curl radially outward upward from the upper end of the upper cylindrical wall. The connecting portion extends diagonally downward in the radial direction from the inner peripheral edge of the diameter-reducing wall to the outer peripheral edge of the energy-dissipating plate, The powder dispensing container according to [1], wherein the distance A is 1 / 2 or less of the inner diameter of the upper cylindrical wall.

[0011] [3] The discharge cylinder has a lower tapered wall that tapers upward from the inner periphery of the annular top wall, The upper support surface is provided at the upper end of the lower diameter reduction wall, The valve support member comprises an annular plate having the lower support surface and an annular projection provided along the outer edge of the annular plate and projecting upward. The lower diameter-reduced wall of the discharge cylinder has a fitting surface that fits with the outer peripheral surface of the annular projection of the valve support member, an annular guide lower surface that extends radially outward from the lower end of the fitting surface at the height of the lower surface of the annular plate of the valve support member, and an annular guide inner surface that extends downward from the outer peripheral edge of the guide lower surface to the inner peripheral edge of the lower surface of the annular top wall, radially outward from the inlet of the internal flow path of the valve support member. The entire valve support member is located above the upper end surface of the mouth portion. The powder discharge container according to [1] or [2], having a sheet-like sealing material that covers the opening formed at the upper end of the mouth portion and is detachably adhered to the upper end surface of the mouth portion.

Advantages of the Invention

[0012] According to the present invention, it is possible to provide a powder discharge container capable of limiting the powder discharge range.

Brief Description of the Drawings

[0013] [Figure 1] It is a cross-sectional view showing a powder discharge container of an embodiment of the present invention. [Figure 2] It is an image obtained by photographing the powder discharge range.

Modes for Carrying out the Invention

[0014] Hereinafter, embodiments of the present invention will be illustrated and described while referring to the drawings.

[0015] As shown in FIG. 1, in one embodiment of the present invention, the powder discharge container 1 has a container body 2, a discharge cap 3, and a sealing material 4. The discharge cap 3 has a cap body 5, a lid body 6, a valve member 7, and a valve support member 8. The container body 2, the cap body 5, the lid body 6, and the valve support member 8 are each formed of resin as a material. The valve member 7 is formed of rubber, an elastomer, or resin as a material.

[0016] The container body 2 has a cylindrical mouth portion 2a centered on the central axis O, a body portion 2b having a diameter larger than that of the mouth portion 2a, and a bottom portion (not shown) connected in this order downward. In the present embodiment, the direction along the central axis O is referred to as the vertical direction, the direction from the bottom portion toward the mouth portion 2a along the vertical direction is referred to as the upward direction, the opposite direction is referred to as the downward direction, the direction orthogonal to the central axis O is referred to as the radial direction, and the direction around the central axis O is referred to as the circumferential direction.

[0017] The cap body 5 has a mounting cylinder 5a mounted on the outer peripheral surface of the mouth portion 2a, an annular top wall 5b connected to the mounting cylinder 5a and supported on the upper end surface of the mouth portion 2a, a discharge cylinder 5d having a cylindrical shape centered on the central axis O and extending upward from the inner peripheral edge portion of the annular top wall 5b to the discharge port 5c, a damping plate 5e located directly below the discharge port 5c, and a plurality of connecting portions 5f arranged with a gap in the circumferential direction and connecting the damping plate 5e to the discharge cylinder 5d. In this embodiment, the mounting cylinder 5a is mounted on the outer peripheral surface of the mouth portion 2a by screwing, but it is not limited to this. For example, it may be configured to be mounted on the outer peripheral surface of the mouth portion 2a by caulking.

[0018] The lid body 6 is connected to the discharge cylinder 5d via a hinge portion 9 and opens and closes the discharge port 5c by rotating via the hinge portion 9.

[0019] The valve member 7 has a circular slit valve 7a in a top view located directly below the damping plate 5e and an annular supported portion 7b connected to the outer peripheral edge portion of the slit valve 7a. The slit valve 7a has a slit 7a1 passing through the central portion of the slit valve 7a and has an inverted dome shape protruding downward around the central axis O. In this embodiment, the slit 7a1 forms a cross shape in a top view, but it is not limited to this. For example, it may be configured to form a Y shape or a linear shape in a top view. The supported portion 7b has a cylindrical body portion 7b3 having a supported upper surface 7b1 and a supported lower surface 7b2, and a cylindrical intermediate cylinder portion 7b4 extending upward from the inner peripheral edge of the body portion 7b3 to the outer peripheral edge of the slit valve 7a. The inner peripheral surface of the supported portion 7b has a plurality of vertical ribs 7b5 arranged with a gap in the circumferential direction and each extending downward from the outer peripheral edge portion of the lower surface of the slit valve 7a.

[0020] The discharge pipe 5d has an upper support surface 5d1 that supports the upper surface (supported upper surface 7b1) of the supported portion 7b of the valve member 7. The discharge pipe 5d also has a cylindrical wall 5d2 extending upward from the upper support surface 5d1, a diameter-reducing wall 5d3 that decreases in diameter upward from the upper end of the cylindrical wall 5d2, an upper cylindrical wall 5d4 extending upward from the inner circumference of the diameter-reducing wall 5d3, and a lip portion 5d5 that expands in diameter and thins in thickness so as to curl radially outward upward from the upper end of the upper cylindrical wall 5d4. The connecting portion 5f extends diagonally downward in a radial direction from the inner circumference of the diameter-reducing wall 5d3 to the outer circumference of the energy dissipating plate 5e. The inner diameter of the cylindrical wall 5d2 is larger than the outer diameter of the slit valve 7a of the valve member 7. The discharge cylinder 5d has a lower diameter-reducing wall 5d6 that narrows upward from the inner periphery of the annular top wall 5b, and the upper support surface 5d1 is provided at the upper end of the lower diameter-reducing wall 5d6.

[0021] The valve support member 8 is attached to the cap body 5 and supports the valve member 7. The valve support member 8 has an annular plate 8a having a lower support surface 8a1 that supports the lower surface (supported lower surface 7b2) of the supported portion 7b of the valve member 7, a cylindrical tube wall portion 8b that protrudes upward from the inner peripheral edge of the annular plate 8a, an annular projection portion 8c provided along the outer peripheral edge of the annular plate 8a and protruding upward, a blockage prevention plate 8d located below the annular plate 8a and directly below the slit valve 7a, and an internal flow path 8e that passes radially inward between the annular plate 8a and the blockage prevention plate 8d, then through the tube wall portion 8b and toward the slit valve 7a.

[0022] The lower diameter-reducing wall 5d6 of the discharge cylinder 5d has a fitting surface 5d7 that fits with the outer circumferential surface of the annular projection 8c of the valve support member 8, an annular guide lower surface 5d8 that extends radially outward from the lower end of the fitting surface 5d7 at the height of the lower surface of the annular plate 8a of the valve support member 8, and an annular guide inner circumferential surface 5d9 that extends downward from the outer circumferential edge of the guide lower surface 5d8 to the inner circumferential edge of the lower surface of the annular top wall 5b, radially outward from the inlet of the internal flow path 8e of the valve support member 8.

[0023] The entire valve support member 8 is located above the upper end surface of the mouth portion 2a, and the sealing material 4 is in the form of a sheet that covers the opening formed at the upper end of the mouth portion 2a and adheres to the upper end surface of the mouth portion 2a in a peelable manner.

[0024] When the lid 6 of the powder discharge container 1 is opened and the body 2b is squeezed in an inverted position, the powder inside the container body 2 is guided by the guide inner circumferential surface 5d9 and guide lower surface 5d8 of the discharge cylinder 5d, passes through the internal flow path 8e of the valve support member 8, inverts the slit valve 7a into a dome shape that protrudes upward (see the dashed line in Figure 1), passes through the slit 7a1, hits the lower surface of the energy dissipator plate 5e, passes through the gaps of the multiple connecting parts 5f, and is discharged from the discharge port 5c.

[0025] In this embodiment, when the slit valve 7a is inverted to form a dome shape, the vertical distance A between the lower surface of the energy dissipator 5e and the upper surface of the slit valve 7a is greater than 0 mm and 6 mm or less. Also in this embodiment, the inner diameter of the upper cylindrical wall 5d4 is 12 mm, and the distance A is 1 / 2 or less of the inner diameter of the upper cylindrical wall 5d4.

[0026] According to this embodiment, since distance A is greater than 0 mm and 6 mm or less, the powder discharge range can be limited. Therefore, when discharging powder into a container such as a teacup or glass, it is possible to suppress the powder from being discharged over a wide area and even outside the container.

[0027] Furthermore, according to this embodiment, since the distance A is less than or equal to half the inner diameter of the upper cylindrical wall 5d4, the powder discharge range can be further limited, thereby enhancing the suppression effect described above.

[0028] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and the embodiments described above can be modified in various ways without departing from the spirit of the present invention. [Examples]

[0029] As embodiments of the present invention, three powder dispensing containers were manufactured: Example 1, where distance A is 2 mm; Example 2, where distance A is 4 mm; and Example 3, where distance A is 6 mm. A comparative example was also manufactured where distance A is greater than 6 mm, at 8 mm. In each example, powder was dispensed from an inverted position under the same conditions and adhered to the flat upper surface of a target, and the adhesion range (dispensing range) was confirmed. Figure 2 shows images of the powder adhered to the upper surface of the target in each example. As shown in Figure 2, in each embodiment where distance A is 6 mm or less, the dispensing range was clearly more limited than in the comparative example where distance A is greater than 6 mm. [Explanation of Symbols]

[0030] 1 Powder discharge container 2. Container body 2a Mouth 2b Torso 3. Discharge cap 4. Sealant 5 Cap body 5a Mounting tube 5b Circular apex wall 5c outlet 5d discharge tube 5d1 Upper support surface 5d2 cylindrical wall 5d3 Reduced diameter wall 5d4 Upper cylindrical wall 5d5 Lip part 5d6 Lower diameter wall 5d7 Mating surface 5d8 Lower guide surface 5d9 Guide inner surface 5e Energy reducing plate 5f connection part 6. Lid 7 Valve member 7a Slit valve 7a1 Slit 7b Supported part 7b1 Supported top surface 7b2 Supported lower surface 7b3 Cylinder part 7b4 Intermediate cylinder part 7b5 Vertical ribs 8 Valve support member 8a Annular plate 8a1 Lower support surface 8b Cylinder wall 8c Annular protrusion 8d Blockage prevention plate 8e Internal channel 9. Hinge section A distance O center axis

Claims

1. The container has a main body with a mouth, a body, and a bottom arranged in that order with the mouth facing downwards, a cap body, a valve member, and a valve support member attached to the cap body and supporting the valve member. The cap body comprises a mounting cylinder attached to the outer circumferential surface of the opening, an annular top wall connected to the mounting cylinder and supported on the upper end surface of the opening, a discharge cylinder extending upward from the inner circumferential edge of the annular top wall to the discharge port, a pressure reducing plate located directly below the discharge port, and a plurality of connecting parts arranged with gaps in the circumferential direction, each connecting the pressure reducing plate to the discharge cylinder. The valve member has a slit valve located directly below the energy dissipation plate and an annular supported portion connected to the outer peripheral edge of the slit valve. The discharge cylinder has an upper support surface that supports the upper surface of the supported portion of the valve member, The valve support member has a lower support surface that supports the lower surface of the supported portion of the valve member, a blockage prevention plate located below the lower support surface and directly below the slit valve, and an internal flow path that passes radially inward between the lower support surface and the blockage prevention plate toward the slit valve. The slit valve has a slit passing through the central part of the slit valve and has an inverted dome shape that protrudes downward, By squeezing the body in an inverted position, the powder inside the container body passes through the internal flow path of the valve support member, inverts the slit valve so that it becomes a dome shape protruding upward, passes through the slit, strikes the lower surface of the energy dissipator plate, passes through the gaps of the multiple connecting parts, and is discharged from the discharge port. A powder discharge container in which, when the slit valve is inverted to form the dome shape, the vertical distance A between the lower surface of the energy dissipator and the upper surface of the slit valve is greater than 0 mm and less than or equal to 6 mm.

2. The discharge cylinder has a cylindrical wall extending upward from the upper support surface, a diameter-reducing wall that narrows in diameter upward from the upper end of the cylindrical wall, an upper cylindrical wall extending upward from the inner periphery of the diameter-reducing wall, and a lip portion that widens in diameter and thins in wall so as to curl radially outward upward from the upper end of the upper cylindrical wall. The connecting portion extends diagonally downward in the radial direction from the inner peripheral edge of the diameter-reducing wall to the outer peripheral edge of the energy-dissipating plate, The powder dispensing container according to claim 1, wherein the distance A is 1 / 2 or less of the inner diameter of the upper cylindrical wall.

3. The discharge cylinder has a lower tapered wall that tapers upward from the inner periphery of the annular top wall, The upper support surface is provided at the upper end of the lower diameter reduction wall, The valve support member comprises an annular plate having the lower support surface and an annular projection provided along the outer edge of the annular plate and projecting upward. The lower diameter-reduced wall of the discharge cylinder has a fitting surface that fits with the outer peripheral surface of the annular projection of the valve support member, an annular guide lower surface that extends radially outward from the lower end of the fitting surface at the height of the lower surface of the annular plate of the valve support member, and an annular guide inner surface that extends downward from the outer peripheral edge of the guide lower surface to the inner peripheral edge of the lower surface of the annular top wall, radially outward from the inlet of the internal flow path of the valve support member. The entire valve support member is located above the upper end surface of the opening. The powder dispensing container according to claim 1, further comprising a sheet-like sealing material that covers an opening formed at the upper end of the mouth and adheres peelably to the upper end surface of the mouth.

Images