JP2014114058A - Nozzle and cap for liquid container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle which can be manufactured by a mold with as less undercut as possible while preventing a liquid from blowing off from the nozzle at a moment of opening a cap main body, and provide a cap including the cap main body which closes such the nozzle.SOLUTION: A nozzle 4 for a liquid container is formed of synthetic resin, and includes: an attachment port 41 attached on a mouth part 24 of a container main body 2; a pouring port 42 which is continued to the attachment port, has a passage whose diameter is smaller than the mouth part 24 on an inner side of a diameter direction, and closes an outlet of the passage with a cap; and a baffle plate 42b2 projecting in a direction narrowing the passage on the inner side of the diameter direction of the pouring port. The nozzle 4 for a liquid container has the two baffle plates, and each of the baffle plates is formed in a position different from a passing direction of the passage, and has a shape that a diameter of an outlet side part of the passage is gradually narrowed to an inlet side of the passage. When an inside of the pouring port is viewed from the passing direction of the passage, each of the baffle plates has a half-moon shape, and forming regions of the respective baffle plates are separated.

Description

  The present invention relates to a nozzle for a liquid container containing various liquids, and a cap including a cap body suitable for closing such a nozzle.

  As the liquid container, generally, a nozzle for discharging liquid is formed in a cylindrical shape, and a passage formed inside the nozzle is formed in a straight line. This is because the nozzle diameter is designed in consideration of the amount of liquid discharged.

  However, in the case of such a general liquid container, there is a problem that the liquid blows out from the nozzle at the moment when the cap (corresponding to the cap body in the present application) is opened. Such a malfunction is likely to occur when the liquid container is placed in a hot place, for example. It is considered that this is because the air in the container body expands and the expanded air is discharged from the nozzle at the moment when the cap is opened together with a small amount of liquid. The cause is presumed to be due to the straight path.

  Incidentally, as a liquid container having a non-straight passage, there is known a liquid container provided with a dripping prevention protrusion inside the nozzle (Patent Document 1). The dripping prevention protrusions are semicircular and are described in terms of being provided with a plurality, but in the drawing, five semicircular arcs are provided. These five dripping prevention protrusions are provided at different positions in the passage direction of the passage. When the protrusion is provided inside the nozzle in this way, it seems as if the above-mentioned problems can be solved.

JP2009-161194

However, since the protrusion has a semicircular arc shape, when the inside of the nozzle is viewed from the penetrating direction, it cannot be said that the area for blocking the passage is sufficient, and the above-mentioned problem can be solved somewhat, but the extent is It seems that it is not enough.
If the cap is closed without noticing the liquid remaining on the outlet side in the nozzle and the container is set up as it is, the dripping prevention protrusion protrudes at right angles to the inner peripheral surface forming the passage. Therefore, the liquid dripping prevention unit prevents the liquid from falling smoothly, and the liquid easily remains in the dripping prevention unit. If it does so, it will become easy to produce the situation where a liquid blows out from a nozzle as soon as a cap main body is opened.
Furthermore, if there are the five dripping prevention protrusions described above, these will be undercut when molded by injection molding, which is not desirable in terms of mold manufacture.

  The present invention takes the above-mentioned circumstances into consideration, and a nozzle that can be produced with a die having no undercut as much as possible while preventing a situation where liquid is blown from the nozzle at the moment when the cap body is opened, and The object is to provide a cap comprising a cap body suitable for closing such a nozzle.

  The nozzle for the liquid container of the present invention is made of synthetic resin, has an attachment port attached to the mouth part of the container body, a passage that is continuous with the attachment port and has a smaller diameter than the mouth part on the inner side in the diameter direction, and It is assumed that the outlet of the passage is provided with a spout closed by the cap body and a baffle plate protruding in the direction of narrowing the passage on the inner side in the diameter direction of the spout.

  In the nozzle for a liquid container of the present invention, there are two baffle plates, each baffle plate is formed at a different position in the passage direction of the passage, and the diameter of the outlet side portion of the passage is set to the inlet side of the passage. When the inside of the spout is viewed from the penetration direction of the passage, each baffle plate has a half-moon shape and the formation area of each baffle plate is separated. .

Further, as a cap for a liquid container suitable for the nozzle described above, a cap having the following cap body is suitable for dropping the liquid remaining on the baffle plate to the container body side.
That is, in the cap for a liquid container having the nozzle and the cap body that closes the outlet of the passage, the cap body projects from the lid ceiling wall to cover the outlet of the spout, and the inside of the nozzle. And an inner plug fitted to the inner plug, and the distal end of the inner plug is a step portion along the two baffle plates.

Further, in order to always keep the tip of the inner plug along the two baffle plates, it is desirable to do the following.
That is, it has a hinge which connects a nozzle and a cap main body.

  According to the present invention, the baffle plate that narrows the passage of the spout has a half-moon shape. Therefore, when the inside of the spout is viewed from the penetration direction, the area that closes the passage is wider than before and the cap body is opened. It is easy to prevent a situation in which the liquid is ejected from the nozzles at the time. In addition, there are two baffle plates, and when viewed from the direction of passage of the passage, the two baffle plate formation regions are separated so that they do not overlap each other. The parting line of the injection mold can be set so that there is no cut portion, and therefore the mold design is facilitated. Moreover, if the container with the cap of the present invention attached to the container body is placed so that the nozzle faces upward, even if liquid remains on the baffle plate before closing the cap body, Since the diameter of the exit side portion of the passage is gradually narrowed toward the entrance side of the passage, the liquid remaining on the baffle plate easily falls to the container body side.

  In addition, the cap has a nozzle and a cap body, and the cap body has an inner plug protruding from the top wall fitted inside the nozzle, and has two baffle plates along the tip of the inner plug. If the step portion is provided, the gap portion between the tip end portion of the inner plug and the baffle plate is almost eliminated by aligning the step portion of the inner plug along the two baffle plates and closing the cap body. . Therefore, even if liquid remains on the baffle plate before the cap body is closed, the liquid can be pushed into the container body side at the tip of the inner plug by closing the cap body.

  Furthermore, if there is a hinge that connects the nozzle and the cap body, the position of the inner plug with respect to the nozzle is always constant, so the stepped portion of the inner plug can be turned into two baffle plates simply by closing the cap body. Will be along.

It is sectional drawing which shows the state which the cap for liquid containers of 1st Embodiment by this invention opened. It is a top view which shows the cap of the state of FIG. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4, illustrating a state in which a liquid container cap according to the first embodiment is closed. FIGS. 4A to 4C are a plan view, a front view, and a left side view showing a state in which the liquid container cap of the first embodiment is closed.

  As shown in FIGS. 1 to 4, the liquid container 1 is a synthetic resin product including a container body 2 and a cap 3 of the present invention attached to the container body 2. Hereinafter, each component will be described in detail.

  The container body 2 has squeeze properties, and more specifically, can be crushed and deformed by human force, and has elasticity that can be restored when the force is released. Moreover, the container main body 2 is a bottomed cylindrical shape as a whole, the cylindrical trunk | drum 21, the bottom part 22 (refer FIG. 4) which closes the end (lower end in a figure) of the trunk | drum 21, and the trunk | drum 21 Of the other end side (upper end side) of the shoulder portion 23 and the mouth portion 24 standing from the inside of the shoulder portion 23 in the diameter direction. Incidentally, the container main body 2 contains a cosmetic liquid for sunscreen, for example.

  The cap 3 of the first embodiment includes a nozzle 4 attached to the mouth portion 24 of the container body 2, a cap body 5 that closes the outlet of the passage 24 </ b> R of the nozzle 4, a hinge 6 that connects the nozzle 4 and the cap body 5, and a nozzle 4 and a closing holder 7 that holds the cap body 5 in a closed state. Hereinafter, when there is no notice, it demonstrates on the basis of the state which the cap main body 5 closed.

  The nozzle 4 is detachably attached to the mouth 24 of the container body 2, a spout 42 that is continuous with the mouth 41, and protrudes radially outward from the cap body 5 side (upper end) of the attachment 41. And an outer peripheral wall 44 that protrudes from the outer side in the diameter direction of the upper wall 43 toward the container body 2 side.

  The upper wall 43 has a plate shape, and in the illustrated example, the outer shape is substantially elliptical when viewed in plan, and both ends in the major axis direction are sides parallel to the minor axis direction. The outer edge portion of the upper wall 43 is formed so as to be stepped lower than the inner side thereof, and the front end portion of the outer peripheral wall 44 is placed thereon.

  The outer peripheral wall 44 has a cylindrical shape, and in the example shown in the drawing, a finger-hanging recess 44a is formed on the outer peripheral surface of the cap body 5 side portion.

  The mounting port 41 is cylindrical, and in the example shown in the figure, a female screw 41a is formed on the inner peripheral surface (cylindrical surface) in the lower part, and the male screw 24a corresponding to the female screw 41a is a container main body. 2 is formed on the outer peripheral surface of the mouth portion 24. An upper wall 43 that protrudes outward in the diameter direction is formed at the upper end of the attachment port 41, and a spout 42 that protrudes inward in the diameter direction is formed at the upper part of the attachment port 41.

  The spout 42 has a passage 42R having a smaller diameter than the mouth portion 24. The passage 42R is straight from the inside of the container body 2 to the outside (in the illustrated example, in the vertical direction) except for a part of the way. Has penetrated. The spout 42 is tubular as a whole, and in the example shown in the figure, a ring-shaped inward wall 42a that protrudes inward in the radial direction from the top of the attachment port 41, and a passage 42R from the inner side in the radial direction of the inward wall 42a. And a spout main body 42b extending to both sides in the through direction.

  In the example shown in the figure, the inner wall 42a is inclined so that the inner surface of the container body 2 side is recessed in an inclined shape, the hinge 6 side is raised, and the finger-hanging depression 44a side is lowered. I'm allowed. Further, an annular middle peripheral wall 42c extending in the circumferential direction is provided at the intermediate portion in the diameter direction of the inward wall 42a so as to protrude toward the container body 2 side. An annular outer concave groove 42d is formed between the middle peripheral wall 42c and the outer peripheral wall 44, and the distal end portion of the container main body mouth portion 24 is accommodated in the outer concave groove 42d. Incidentally, since one end portion (lower side) of the spout main body portion 42b protrudes toward the container main body 2 side with respect to the inner side in the diameter direction of the inward wall 42a, an annular inner side is formed between the protruding portion and the middle peripheral wall 42c. A concave groove 42e is formed.

  The spout main body 42b is mainly composed of a pipe part 42b1, and two baffle plates 42b2 and 42b2 project from the inner peripheral surface of the pipe part 42b1 at different positions in the longitudinal direction (penetration direction). An internal space of the pipe portion 42b1 narrowed by the baffle plates 42b2 and 42b2 serves as a passage 42R.

  Each baffle plate 42b2 has a shape in which the diameter of the outlet side portion (cap body 5 side portion) of the passage 42R is gradually narrowed toward the inlet side (container body 2 side) of the passage 42R. In the illustrated example, the aperture is narrowed so as to be recessed in a circular arc shape in cross section. Further, one baffle plate 42b2 protrudes in a state where the inlet side portion of the passage 42R is stepped with respect to the pipe portion 42b1. The other baffle plate 42b2 projects toward the inlet side portion of the passage 42R while projecting the inlet side portion of the passage 42R in a step-like manner with an angle with respect to the pipe portion 42b1, similarly to the one baffle plate 42b2. An inclined surface is formed to gradually narrow the aperture. Each baffle plate 42b2 has a half-moon shape when the inside of the spout 42 is viewed from the penetration direction of the passage 42R, and the formation regions of the baffle plates 42b2 are separated and do not overlap each other. is there. Moreover, the pipe part 42b1 is made into the shape which spreads the end part by the side of the cap main body 5 in the shape of a trumpet (end widening shape).

  The cap body 5 includes a lid ceiling wall 51 that covers the outlet of the spout 42 and the nozzle upper wall 43, a lid sidewall 52 that protrudes from the outer edge of the lid ceiling wall 51 toward the nozzle 4, and the inside of the lid ceiling wall 51. A lid inner side wall 53 projecting toward the nozzle 4 side and an inner plug 54 projecting from the lid top wall 51 toward the nozzle 4 side inside the lid inner side wall 53 are provided.

  The lid top wall 51 is plate-like, and in the example shown in the figure, like the nozzle upper wall 43, it is substantially elliptical in plan view, and both ends in the major axis direction are sides parallel to the minor axis.

  The inner plug 54 fits inside the nozzle 4 (inside the spout 42), and has a cylindrical shape corresponding to the shape of the passage 42R. Further, the front end portion of the inner plug 54 is a stepped portion 54a along the two baffle plates 42b2 and 42b2 (more specifically, along the outlet side portion (upper portion) of the two baffle plates 42b2 and 42b2).

  The lid inner side wall 53 is cylindrical (cylindrical in the example shown in the figure) and has a projecting length shorter than the lid side wall 52. Further, the inner wall 53 of the lid accommodates an end portion (a trumpet-shaped portion) on the cap main body 5 side of the pipe portion 42 b 1 of the spout main body portion 42 b, and the outer periphery of the trumpet-shaped portion is the inner wall 53 of the lid. It will be in the state which touches an inner peripheral surface.

  When the cap main body 5 is closed, the lid side wall 52 is in a state in which the portion on the container main body 2 side, which is the tip, is in contact with the nozzle upper wall 43.

  The hinge 6 is a plate-like object that can be refracted at an intermediate portion in the length, and one end in the length direction is provided continuously to the lid side wall 52 and the other end is provided continuously to the nozzle upper wall 43. And the intermediate part of a length direction is made into the thing (thin wall part) whose thickness is thinner than the both sides. The cap body 5 can be opened and closed with the thin portion serving as a fulcrum. More specifically, in the illustrated example, the hinge 6 is composed of two hinge pieces 61 and a shaft portion 62 as a fulcrum that connects one side of the two hinge pieces 61, and these hinge pieces 61, 61. Protrudes outward in the caliber direction from the lid side wall 52 and the nozzle outer peripheral wall 44. In the illustrated example, two hinges 6 are provided, and the two hinges 6, 6 are spaced apart in the minor axis direction at one end side in the major axis direction of the substantially elliptical lid top wall 51. Is provided.

  The closing holding portion 7 is a bent piece 7 having an L-shaped cross section having a spring property in the illustrated example, and is disposed between the two hinges 6, 6. The two thin-walled portions are continuous with the lid top wall 51 and the other end is continuous with the nozzle upper wall 43. Due to the rigidity of the bent piece 7, when the cap body 5 is covered with the nozzle 4, the state (a state where the cap body 5 is closed) is easily held. Incidentally, in order to prevent the outer surface of the bent piece 7 from projecting as far as possible to the outer surfaces of the lid ceiling wall 51 and the lid side wall 52, the lid ceiling wall 51 has a U-shape at one end portion in the long axis direction described above. The U-shaped opening is directed outward in the caliber direction. This U-shaped opening becomes a first accommodation groove 51 a that accommodates one piece 71 of the bent piece 7. In addition, a second accommodation groove 52a that is continuous with the first accommodation groove 51a toward the nozzle 4 is provided on the lid side wall 52, and most of the other piece 72 of the bent piece 7 is included in the second accommodation groove 52a. Is meant to accommodate. Incidentally, in the corner portion where the nozzle upper wall 43 and the nozzle outer peripheral wall 44 are continuous, the portion where the hinge 6 is continuous is formed thicker than the other portion, and the second receiving groove portion 52a is formed in this corner portion. A rectangular groove portion 43a that is continuous with the bent piece 7 is accommodated in the rectangular groove portion 43a.

  As shown in FIG. 1, the cap 3 described above is molded with the cap body 5 opened with respect to the nozzle 4. In this case, the parting line between the fixed mold and the movable mold is such that the two baffle plates 42b2 and 42b2 are arranged on the inner side of the spout 42 (spout main body 42b) and the sides on the diameter side of the half-moon shape. It becomes a line that connects with. As shown in FIG. 2, this line matches the shape of the distal end portion (including the stepped portion 54 a) of the inner plug 54. Then, the passage 42R is in a straight line toward the exit side with this line as a boundary, and there is no undercut. In addition, the passage 42R is also in a straight line toward the entrance side with this line as a boundary, and there is no undercut. Accordingly, the opening of the spout 42 can be performed without any trouble.

  Moreover, since the cap main body 5 is connected with the nozzle 4 by the hinge 6 with respect to the cap 3 described above, the position where the inner plug 54 enters and exits from the passage 42R is determined. Accordingly, the stepped portion 54a at the tip of the inner plug 54 is always along the two baffle plates 42b2 and 42b2.

  The present invention is not limited to the above embodiment. For example, the nozzle 4 and the cap body 5 are not connected by the hinge 6 as in the above embodiment, and the nozzle 6 may be omitted. In this case, the nozzle 4 and the cap main body 5 are separate parts. For example, a male screw and a female screw may be provided on the nozzle 4 and the cap main body 5 may be fastened to the nozzle 4 for attachment. In addition, the nozzle 4 is not limited to the outside of the container main body opening 24 as in the above-described embodiment, and the nozzle 4 may be attached to the inside of the container main body mouth 24 by fitting or the like.

  Furthermore, as long as the shape of the outlet side portion of the baffle plate 42b2 is a shape that gradually narrows the diameter toward the inlet side, the shape is not limited to the shape recessed in the cross-sectional arc shape as in the above-described embodiment, but the cross-sectionally inclined surface. Other shapes such as a shape may be used.

  Further, the nozzle 4 is not limited to the one having the upper wall 43 and the outer peripheral wall 44 as in the above embodiment, and may be one without these. For example, the nozzle 4 may have a longer passage 42 </ b> R than in the embodiment. Further, the cap body 5 is not limited to the one having the lid inner side wall 53 as in the above embodiment, and may be one without the lid inner side wall 53. The liquid container is not limited to a substantially elliptical shape in plan view as in the embodiment, but may be other shapes such as a circular shape and a rectangular shape.

DESCRIPTION OF SYMBOLS 1 Liquid container 2 Container main body 21 Body part 22 Bottom part 23 Shoulder part 24 port part 24a Male screw 3 Cap 4 Nozzle 41 attachment port 41a Female screw 42 Outlet 42R Channel 42a Inward wall 42b Outlet main part 42b1 Pipe part 42b2 Baffle plate 42c Middle wall 42d Outer groove 42e Inner groove 43 Upper wall 43a Square groove 44 Outer wall 44a Depression 5 Cap body 51 Lid top wall 51a First housing groove 52 Lid side wall 52a Second housing groove 53 Lid inner wall 54 Inner plug 54a step Part 6 hinge 61 hinge piece 62 shaft part 7 closure holding part (bending piece)
71 One piece 72 Other piece

Claims (3)

An outlet that is attached to the mouth of the container body, a spout that is continuous with the attachment opening and has a passage that is smaller in diameter than the mouth on the inner side in the caliber direction, and the outlet of the passage is closed by the cap body; In a nozzle for a liquid container, which is made of a synthetic resin having a baffle plate protruding in the direction of narrowing the passage on the inner side in the caliber direction
There are two baffles,
Each baffle plate is formed at a different position in the passage direction of the passage, and has a shape in which the diameter of the exit side portion of the passage is gradually narrowed toward the entrance side of the passage,
A nozzle for a liquid container, wherein each baffle plate has a half-moon shape when the inside of the spout is viewed from the penetration direction of the passage, and the formation region of each baffle plate is separated. A cap for a liquid container comprising the nozzle according to claim 1 and a cap body that closes an outlet of the passage.
The cap body includes a lid ceiling wall that covers the outlet of the spout, and an inner plug that protrudes from the lid ceiling wall and fits inside the nozzle,
A cap for a liquid container, wherein the tip of the inner plug is a step portion along two baffle plates.   The cap for a liquid container according to claim 2, further comprising a hinge for connecting the nozzle and the cap body.

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