Feeding container

Abstract

To provide a delivering container facilitating realizing a simple configuration.SOLUTION: A delivering container 1 incudes: a male screw cylinder 8: a case cylinder 2 having a screwing part 7b screwed with the male screw cylinder 8, and a storage part S for a content C; a middle tray 9 arranged between the male screw cylinder 8 and the storage part S; an engaging shaft 10 engaged with an inner peripheral surface of the male screw cylinder 8 slidably and co-rotatably in an axial direction; and an operation object part 11 held in the case cylinder 2 integrally with the engaging shaft 10 rotatably with respect to the case cylinder 2.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] There is known a dispensing container that can dispense the contents from a case cylinder by a rotational operation on an operation part (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] It is desirable that the dispensing container can be realized with a simple structure.

[0005] Therefore, an object of the present invention is to provide a dispensing container that can easily realize a simple structure.

Means for Solving the Problems

[0006] The dispensing container of the present invention includes a male screw cylinder, a case cylinder having a screwing portion screwed to the male screw cylinder and a storage portion for the contents, a middle plate disposed between the male screw cylinder and the storage portion, an engaging shaft slidable in the axial direction and rotatable integrally with the male screw cylinder on the inner peripheral surface of the male screw cylinder, and an operation part rotatably held by the case cylinder integrally with the engaging shaft , a split nut portion having the screw engagement portion, a restricting portion provided integrally with the operated portion, and restricting the expansion of the split nut portion by contact with the outer peripheral surface of the split nut portion. and is a dispensing container having the above.

[0008] In the dispensing container of the present invention, in the above configuration, it is preferable that the middle plate and the male screw cylinder are integrally provided, and the engaging shaft and the operation part are integrally provided.

Effects of the Invention

[0009] According to the present invention, it is possible to provide a feeding container that can easily realize a simple structure.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be illustrated and described with reference to the drawings.

[0012] As shown in FIGS. 1 to 4, in the first embodiment of the present invention, the feeding container 1 has a case cylinder 2, a feeding member 3, an operating member 4, and a cap 5. The case cylinder 2 has a main body cylinder 6 and a split nut portion 7. The feeding member 3 has a male screw cylinder 8 and a middle plate 9. The operating member 4 has an engagement shaft 10, an operated portion 11, and an inner cylinder portion 12. The inner cylinder portion 12 has a regulating portion 13. The inner cylinder portion 12 and the main body cylinder 6 are engaged via a rotary connection portion 14 and a ratchet portion 15. The cap 5 has an insert member 16 and a main body portion 17. The case cylinder 2, the feeding member 3, the operating member 4, and the cap 5 are each an integrally molded product.

[0013] For convenience of explanation, the direction along the central axis O with the cap 5 closed is also referred to as the axial direction or the vertical direction, the direction from the male screw cylinder 8 toward the middle plate 9 along the central axis O is also referred to as the upward direction, the opposite direction is also referred to as the downward direction, the direction along a straight line orthogonal to the central axis O is also referred to as the radial direction, the direction around the central axis O is also referred to as the circumferential direction, and a cross section including the central axis O is also referred to as a longitudinal section.

[0014] The main body cylinder 6 of the case cylinder 2 has a cylindrical shape centered on the central axis O and forms a feeding port 18 at the upper cylinder end. Note that the feeding port 18 is not limited to a configuration provided inclined with respect to the horizontal plane as shown in the drawing. The outer peripheral surface of the main body cylinder 6 has a reduced-diameter portion 6a whose upper side is reduced in diameter in a stepped shape.

[0015] The cap 5 has a cylindrical outer peripheral wall 5a centered on the central axis O and a top wall 5b that closes the upper end portion of the outer peripheral wall 5a. The cap 5 is an insert molded product formed by an insert material 16 made of a soft material in the shape of a capped cylinder that forms the inner surface of the upper part of the cap 5 and a main body portion 17 in the shape of a capped cylinder that covers the outer surface of the insert material 16 and extends downward beyond the insert material 16. By covering and fitting the outer peripheral wall 5a of the cap 5 onto the reduced-diameter portion 6a of the main body cylinder 6, the soft insert material 16 of the cap 5 is brought into close contact with the reduced-diameter portion 6a and the feeding port 18 is sealed. The cap 5 is configured to be detachable from the reduced-diameter portion 6a so that the feeding port 18 can be opened and closed. According to such a configuration of the cap 5, good airtightness of the feeding port 18 can be achieved.

[0016] The split nut portion 7 of the case cylinder 2 extends downward inclined radially inward from the inner peripheral surface of the main body cylinder 6 and has split portions 7a that are circumferentially divided at four locations in the circumferential direction, and has a female screw-like screwing portion 7b at the lower end portion of the inner peripheral surface. The split nut portion 7 is not limited to a configuration having the split portions 7a at four locations in the circumferential direction as shown in the drawing, and any configuration having the split portions 7a at one or more locations in the circumferential direction may be used. Since the split nut portion 7 has the split portions 7a, it can be easily displaced by elastic deformation radially outward.

[0017] Above the split nut portion 7 on the inner peripheral surface of the main body cylinder 6 of the case cylinder 2, a middle plate 9 is fitted so as to be slidable upward. Inside the main body cylinder 6, a storage portion S for the content C is formed between the delivery port 18 and the middle plate 9, and in the storage portion S, the inner peripheral surface of the main body cylinder 6 has a cylindrical inner peripheral surface shape with a constant inner diameter in the vertical direction. The middle plate 9 is circular in top view and has a close contact cylinder 9a at the outer peripheral edge portion. The close contact cylinder 9a is in close contact with the inner peripheral surface of the main body cylinder 6 over the entire circumference at the upper end portion and the lower end portion, and has a constricted cylindrical shape that is separated from the inner peripheral surface of the main body cylinder 6 at the middle portion in the vertical direction.

[0018] The content C is in a solid, semi-solid or liquid state and is stored in the storage portion S. The type of the content C is not particularly limited, and for example, it may be cosmetics such as lipstick and lip cream, drugs, or paste.

[0019] The male screw cylinder 8 has a male screw portion 8a that is screwed into the screwing portion 7b on its outer peripheral surface and has a hollow screw shaft shape centered on the central axis O. The male screw cylinder 8 can be raised integrally with the middle plate 9 with respect to the case cylinder 2 by rotating in the first circumferential direction with respect to the case cylinder 2 (the screwing portion 7b and the main body cylinder 6) in a state where the male screw portion 8a is screwed into the screwing portion 7b. The male screw cylinder 8 is provided integrally with the middle plate 9 and extends downward from the middle plate 9.

[0020] The engaging shaft 10 of the operation member 4 engages with the inner peripheral surface of the male screw cylinder 8 so as to be slidable in the axial direction and rotatable together in the circumferential direction. More specifically, the engaging shaft 10 has a cross-shaped spline shaft shape in top view, and the inner peripheral surface of the male screw cylinder 8 has a shape complementary to the engaging shaft 10. Note that the shapes of the outer peripheral surface of the engaging shaft 10 and the inner peripheral surface of the male screw cylinder 8 are not limited to this, and any shape may be used as long as the engaging shaft 10 engages with the inner peripheral surface of the male screw cylinder 8 so as to be slidable in the axial direction and rotatable together in the circumferential direction.

[0021] The upper end of the engaging shaft 10 is located above the upper end of the male screw portion 8a. Also, the lower end of the male screw portion 8a is located below the lower end of the case cylinder 2.

[0022] The operated part 11 of the operating member 4 is disposed below the case cylinder 2 and can receive a rotation operation for rotating the operated part 11 in the circumferential direction with respect to the case cylinder 2. The operated part 11 has a bottom wall 11a integrally connected to the lower end of the engaging shaft 10 and an outer peripheral part 11b extending upward from the outer peripheral edge of the bottom wall 11a. The upper end surface of the outer peripheral part 11b faces the lower end surface of the case cylinder 2.

[0023] The inner cylinder part 12 of the operating member 4 has a cylindrical shape centered on the central axis O and is integrally connected to the upper end of the outer peripheral part 11b of the operated part 11 at the lower end. The inner cylinder part 12 is disposed radially inside the main body cylinder 6. That is, the outer peripheral surface of the inner cylinder part 12 faces the inner peripheral surface of the main body cylinder 6.

[0024] The outer peripheral surface of the inner cylinder part 12 and the inner peripheral surface of the main body cylinder 6 are engaged via a rotary connection part 14. The rotary connection part 14 is constituted by a circumferential groove provided on one of the inner peripheral surface of the main body cylinder 6 and the outer peripheral surface of the inner cylinder part 12 and extending in the circumferential direction, and a convex part provided on the other of the inner peripheral surface of the main body cylinder 6 and the outer peripheral surface of the inner cylinder part 12 and fitted into the circumferential groove, and holds the inner cylinder part 12 and the operated part 11 rotatably in the circumferential direction with respect to the main body cylinder 6. Therefore, the operated part 11 is held rotatably in the circumferential direction with respect to the case cylinder 2 integrally with the inner cylinder part 12 and the engaging shaft 10 by the case cylinder 2.

[0025] The outer peripheral surface of the inner cylinder part 12 and the inner peripheral surface of the main body cylinder 6 are engaged via a ratchet part 15. The ratchet part 15 allows the rotation of the inner cylinder part 12, the operated part 11, and the engaging shaft 10 with respect to the main body cylinder 6 in the first circumferential direction, while restricting the rotation in the second circumferential direction which is the reverse direction of the first circumferential direction. The ratchet part 15 can be constituted by, for example, an internal gear part 15a provided on the inner peripheral surface of the main body cylinder 6 as shown in the figure, and one or more elastic pieces 15b provided on the inner cylinder part 12.

[0026] The upper end part of the inner cylinder part 12 constitutes a restricting part 13. That is, the restricting part 13 is provided integrally with the operated part 11. The restricting part 13 restricts the radial expansion due to the elastic deformation of the split nut part 7 by being sandwiched between the outer peripheral surface of the split nut part 7 and the inner peripheral surface of the main body cylinder 6.

[0027] The assembly of the feeding member 3 into the case cylinder 2 can be easily performed by simply pushing the male screw cylinder 8 straight downward into the split nut portion 7 that can be easily elastically deformed in the radial direction, without rotating it from above. Then, by pressing the operating member 4 against the case cylinder 2 from below, the operating member 4 is assembled to the case cylinder 2 via the rotary coupling portion 14. As a result, the restricting portion 13 can be arranged at the above-described position where the elastic deformation of the split nut portion 7 in the radial direction can be restricted. Therefore, when operating the operated portion 11, the screwed state of the screwed portion 7b of the split nut portion 7 and the male screw cylinder 8 can be maintained well.

[0028] The inner peripheral surface of the restricting portion 13 has a convex portion facing the outer peripheral surface of the split nut portion 7, and the outer peripheral surface of the restricting portion 13 has a convex portion facing the inner peripheral surface of the main body cylinder 6. Therefore, it is possible to suppress the occurrence of excessive sliding resistance in the circumferential direction when operating the operated portion 11.

[0029] Note that the restricting portion 13 is not limited to the configuration having these convex portions. Also, the restricting portion 13 is not limited to the configuration that restricts the expansion of the split nut portion 7 by being sandwiched between the outer peripheral surface of the split nut portion 7 and the inner peripheral surface of the main body cylinder 6, and any configuration that restricts the expansion of the split nut portion 7 by contacting the outer peripheral surface of the split nut portion 7 may be used. Note that the restricting portion 13 has a slit extending in the vertical direction at one or more positions in the circumferential direction in order to facilitate die extraction during molding, but the restricting portion 13 is not limited to the configuration having a slit.

[0030] Note that the inner cylinder portion 12 may be configured to have a sliding portion 12a composed of one or more elastic pieces that contact the inner peripheral surface of the main body cylinder 6 in order to adjust the sliding resistance with the inner peripheral surface of the main body cylinder 6, as shown in the figure.

[0031] When using the dispensing container 1, by operating the operated portion 11 to rotate it in the first circumferential direction with respect to the case cylinder 2, the male screw cylinder 8 is rotated with respect to the screwed portion 7b of the case cylinder 2 via the engagement shaft 10 that rotates integrally with the operated portion 11, and the male screw cylinder 8 can be sent together with the middle plate 9 toward the dispensing port 18 by the action of the screw. Then, the content C pushed up by the middle plate 9 and dispensed from the dispensing port 18 can be used.

[0032] When operating the operated portion 11, the middle plate 9 slides on the inner peripheral surface of the main body cylinder 6 in the circumferential direction and the axial direction. By passing through the constricted cylindrical-shaped close contact cylinder 9a, while suppressing the sliding resistance at that time, the airtightness between the middle plate 9 and the main body cylinder 6 can be maintained well. Further, since the reverse rotation of the operated portion 11 is restricted by the ratchet portion 15, it is possible to suppress the occurrence of cracks and air intrusion into the content C in the storage portion S due to the lowering of the middle plate 9. According to this embodiment in which the airtightness is enhanced by both the middle plate 9 (close contact cylinder 9a) that closes the lower opening of the storage portion S and the insert member 16 that closes the upper opening of the storage portion S, good airtightness of the content C stored in the storage portion S can be realized, and thus the content C can be protected. That is, the dispensing container 1 of this embodiment can be particularly advantageously used as a dispensing container 1 for types of content C that require good airtightness.

[0033] In the first embodiment, the cap 5 is formed by insert molding, but it is not limited to this. For example, as in the second embodiment shown in FIG. 5, it may be formed by assembling separate parts.

[0034] In the second embodiment, the cap 5 is formed by assembling a lid member 20 made of a soft material to the upper end portion of a cylindrical member 19 made of a hard material. As a result, the inner peripheral surface of the upper portion of the cap 5 that closely contacts the reduced diameter portion 6a when the cap 5 is closed is formed by the lid member 20. Even with such a configuration, good airtightness of the dispensing port 18 can be realized.

[0035] In the first embodiment, the delivery port 18 is formed by the upper cylindrical end of the main body cylinder 6. However, the present invention is not limited to this. For example, as in the third embodiment shown in FIG. 6, a plug body 21 made of a soft material (or a hard material) may be assembled to the upper cylindrical end of the main body cylinder 6, and the semi-solid or liquid content C may be delivered (discharged) through the discharge port 21a of the plug body 21. In this case, for example, it can be realized as a tube lip type cosmetic container.

[0036] In the third embodiment, the plug body 21 has a peripheral wall 21b that fits on the inner peripheral surface of the upper cylindrical end of the main body cylinder 6, and a top wall 21c that is continuous with the upper end of the peripheral wall 21b and has a discharge port 21a. Note that the top wall 21c is not limited to the configuration that is inclined with respect to the horizontal plane as shown in the figure. Further, the cap 5 has a sealing convex portion 5c that hangs down from the top wall 5b and can close the discharge port 21a. According to the third embodiment, better airtightness of the storage portion S can be realized.

[0037] The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof.

[0038] Therefore, the delivery container 1 of the above-described embodiment can be modified as long as it has a male screw cylinder 8, a case cylinder 2 having a screwing portion 7b screwed to the male screw cylinder 8 and a storage portion S for the content C, a middle plate 9 disposed between the male screw cylinder 8 and the storage portion S, an engaging shaft 10 that is axially slidable and rotatable together on the inner peripheral surface of the male screw cylinder 8, and an operated portion 11 that is integrally held rotatably with respect to the case cylinder 2 with the engaging shaft 10.

[0039] For example, the upper end of the engagement shaft 10 is not limited to a configuration positioned above the upper end of the male screw portion 8a. Also, the lower end of the male screw portion 8a is not limited to a configuration positioned below the lower end of the case cylinder 2. The outer peripheral portion 11b of the operated portion 11 is not limited to a configuration extending upward from the bottom wall 11a. The configuration of providing the split nut portion 7 for forming the screwed portion 7b is not limited, and for example, the screwed portion 7b may be directly provided on the inner peripheral surface of the case cylinder 2. It is also possible to adopt a configuration without providing the ratchet portion 15. The middle plate 9 and the male screw cylinder 8 may be configured separately. The operated portion 11 and the engagement shaft 10 may be configured separately.

[0040] Note that, in the above configuration, the feeding container 1 of the above-described embodiment preferably has a split nut portion 7 having a screwed portion 7b, and a restricting portion 13 that is integrally provided on the operated portion 11 and restricts the expansion of the split nut portion 7 by contacting the outer peripheral surface of the split nut portion 7.

[0041] In the above configuration, the feeding container 1 of the above-described embodiment preferably has the middle plate 9 and the male screw cylinder 8 integrally provided, and the engagement shaft 10 and the operated portion 11 integrally provided.

Explanation of Reference Numerals

[0042] 1 Feeding container 2 Case cylinder 3 Feeding member 4 Operating member 5 Cap 5a Outer peripheral wall 5b Top wall 5c Sealing convex portion 6 Body cylinder 6a Reduced diameter portion 7 Split nut portion 7a Split portion 7b Screwed portion 8 Male screw cylinder 8a Male screw portion 9 Middle plate 9a Close contact cylinder 10 Engagement shaft 11 Operated portion 11a Bottom wall 11b Outer peripheral portion 12 Inner cylinder part 12a Sliding part 13 Regulation part 14 Rotational connection part 15 Ratchet part 15a Internal gear part 15b Elastic piece 16 Insert material[[ID=1�]] 17 Main body part 18 Pay-out port 19 Cylindrical member 20 Cover member 21 Plug body 21a Discharge port 21b Peripheral wall 21c Top wall C Contents O Central axis S Accommodation part

Claims

1. A male screw cylinder, a case cylinder having a screwing portion screwed onto the male screw cylinder and a content accommodating portion, a middle plate disposed between the male screw cylinder and the accommodating portion, an engaging shaft that is axially slidable and rotatable together on the inner peripheral surface of the male screw cylinder, an operating portion that is integrally formed with the engaging shaft and is rotatably held by the case cylinder with respect to the case cylinder, a split nut portion having the screwing portion, a feeding container having a restricting portion that is provided integrally with the operating portion and restricts the expansion of the split nut portion by contact with the outer peripheral surface of the split nut portion.

2. The feeding container according to claim 1, wherein the middle plate and the male screw cylinder are integrally provided, and the engaging shaft and the operating portion are integrally provided.

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