JP5929098B2 - Hinge cap - Google Patents

Description

  The present invention relates to a one-touch type hinge cap in which a cap is connected to an inner stopper fixed to a container mouth part through a hinge so as to be opened and closed.

As a conventional hinge cap of this type, for example, as described in Patent Document 1, an annular fitting protrusion is provided so as to surround the base of the dispensing tube of the inner plug, and when the cap is closed, It is known that the inner periphery of the lower end of the skirt portion of the cap is fitted to the outer periphery of the fitting protrusion.
The inner periphery of the lower end of the skirt is provided with an inward projection that climbs over the outward projection provided on the outer periphery of the fitting projection when the cap is opened and closed, and is opened and closed by the engagement of the outward projection and the inward projection. At times it was modest and kept closed.

However, there is an annular groove between the dispensing tube and the fitting projection of the inner plug, and the content liquid dripping from the cap or the dispensing tube after the content liquid is poured out stays in the annular groove, and this stays There was a problem that the content liquid flowed over the fitting protrusion at the next pouring.
Therefore, it is conceivable to close the annular groove itself as a countermeasure to this problem. Conventionally, the dripping content liquid that should have been received by the annular groove adheres to the surface of the inner plug as it is, and a certain amount of dripping by the annular groove occurs. The effect of damaging the content liquid is not obtained.
In addition, since the cap pivots around the hinge, when closing the cap, the lower end opening of the skirt begins to be fitted obliquely with respect to the fitting projection, and is completely closed Thus, the central axes of the skirt portion and the fitting projection are coincident with each other. The deviation of the shape due to the inclination of the center axis of the skirt and the center axis of the fitting projection when the lid is closed is absorbed by the elastic deformation of the fitting projection and the skirt, but it is fitted when the annular groove is closed. The elastic deformation of the joint protrusion cannot be expected, and the cap opening / closing operation is hindered.
In particular, the inward projection at the lower end of the skirt portion of the cap and the outward projection of the fitting projection cannot be smoothly carried over.

JP 2009-51553 A

  The present invention has been made to solve the above-described problems of the prior art, and does not hinder the elastic deformation of the fitting protrusion of the inner plug into which the cap is fitted, and the annular groove on the outer peripheral side of the dispensing cylinder. It is an object of the present invention to provide a hinge cap that can reduce the outflow of liquid retained in the container.

In order to achieve the above object, the hinge cap of the present invention comprises:
A fixing part fixed to the container mouth part, a fitting protrusion protruding upward, and an inner stopper having a dispensing cylinder;
A cap is openably connected via a hinge to the intermediate plug, Ri consists,
The fixed part is a double cylinder having an outer cylinder part fitted to the outer periphery of the container mouth part and an inner cylinder part fitted to the inner circumference of the container mouth part, and the upper ends of the outer cylinder part and the inner cylinder part In the hinge cap that is connected by an annular stepped portion, and the fitting projection and the extraction tube protrude upward through the stepped portion ,
In the annular groove formed between the fitting protrusion and the dispensing cylinder, a plurality of radial ribs are provided as anti-fluid ribs, and the height of the radial rib is higher than the height of the fitting protrusion. It is also characterized by lowering.

The hinge cap of the present invention can also be configured as follows.
1. The height of the radial rib is set lower than the position of the outward protrusion on the outer periphery of the fitting protrusion.
2. A liquid splash prevention guard is provided at the lower end of the skirt portion of the cap and extends downward and covers the step portion formed at the upper end of the fixing portion of the inner plug.
3. A finger hook portion is provided in the vicinity of the top plate portion of the skirt portion of the cap.
4). A partition wall having a planned opening area in the dispensing tube of the inner plug is a mortar-shaped inclined surface.
5. The upper end portion of the inner tube pouring cylinder is a curled portion that curves outward.

According to the hinge cap of the present invention, when the container is tilted when the content liquid is poured out, the content liquid staying in the annular groove tends to flow in a lower direction along the annular groove, Since the flow of the content liquid is sequentially regulated by the radial ribs, the amount of liquid collected in the lowest region is reduced, and the outflow from the fitting protrusion is prevented or even if it flows out Can do.
Further, since the height of the liquid rotation prevention rib is lower than the height of the fitting protrusion, the upper part of the fitting protrusion can be freely elastically deformed inwardly, with the hinge at the center. The displacement of the shape due to the inclination of the center axis of the skirt portion and the fitting projection due to the rotation of the cap can be effectively absorbed, and the cap can be opened and closed easily.

In particular, if the height of the anti-rotation rib is set lower than the position of the outward protrusion on the outer periphery of the fitting protrusion, elastic deformation of the fitting protrusion can be expected, so that the outward protrusion on the outer periphery of the fitting protrusion And over the inward projection on the inner periphery of the skirt part is performed smoothly.
In addition, if a liquid splash prevention guard is provided at the lower end of the cap skirt part to cover the contact surface of the step part formed at the upper end of the fixing part of the inner plug, the content liquid adhered to the step part when the cap is closed Splashes against the liquid splash prevention guard, preventing splashing to the surroundings.

In addition, if the finger hooking portion of the cap is provided in the vicinity of the top plate portion, it becomes difficult for the liquid to adhere to the finger hooking portion, and the finger can be prevented from being soiled during operation.
Furthermore, by using a curled part that curves outwardly at the upper end of the inner pipe dispensing tube, liquid breakage is improved, and the amount of liquid droplets dripping outside can be reduced, returning to the dispensing tube. The liquid can be collected in the container by inclining the partition wall in the dispensing cylinder so as to become lower toward the opening, so that no excess liquid remains and the contamination can be reduced.

1A and 1B show a hinge cap according to an embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view in a closed state, FIG. It is an enlarged view of the C section vicinity. 2A is a longitudinal sectional view of the hinge cap of FIG. 1 in an open state, and FIG. 2B is a plan view. 3 (A) and 3 (B) are views corresponding to FIG. 1 (B) showing a modified example of the liquid rotation prevention rib.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
1 and 2 show a hinge cap according to an embodiment of the present invention. In the figure, 1 shows the whole hinge cap, and this hinge cap 1 is attached to an inner plug 5 via a hinge 3. The cap 7 is configured to be freely opened and closed.
The inner plug 5 protrudes upward through a double cylindrical fixing portion 51 fitted to the container mouth portion 100 and an annular step portion 52 formed with a reduced diameter inward from the upper end of the fixing portion 51. A fitting protrusion 54 and a dispensing cylinder 53.
The fixing portion 51 of the inner plug 5 includes an outer cylinder portion 51A that fits on the outer periphery of the container mouth portion 100, and an inner cylinder portion 51B that fits on the inner periphery of the container mouth portion 100. The outer cylinder portion 51A and the inner cylinder portion The upper ends of 51B are connected by an annular stepped portion 52. An annular fixing projection 8 that protrudes inward is provided on the inner periphery of the outer cylinder portion 51 </ b> A of the fixing portion 51, and engages with the upper edge of the annular recess 101 provided on the outer periphery of the container mouth portion 100. I am trying to prevent 5 from falling out. Further, a plurality of anti-rotation ribs 81 are provided in the circumferential direction between the fixing protrusion 8 and the stepped portion 52 (see FIG. 2A). The tightening allowance with 100 and the frictional force are increased to make it difficult to turn.

  The pouring cylinder 53 of the inner plug 5 has a cylindrical shape, and an upper end portion is provided with a curled portion 53a that curves outward. A partition wall 57 is provided in the middle of the dispensing cylinder 53. The inside and outside of the container are shielded by the partition wall 57 before opening, and the score 57a provided in the partition wall 57 is broken and used for opening. The That is, the score 57a is formed in the partition wall 57 before opening so as to surround the planned opening region 57b, and the pull ring 58 is connected to the planned opening region 57b via the connecting portion 58a. Score 57a is broken. The partition wall 57 has a mortar shape toward an opening (not shown) (corresponding to the planned opening region 57b in the drawing), that is, an inclined surface inclined downward in an inverted conical shape. After opening, the cap 7 is resealed.

  An annular groove 56 having a predetermined width is formed between the outer periphery of the dispensing cylinder 53 and the inner periphery of the fitting protrusion 54. The annular groove 56 is configured to prevent the liquid around the annular groove 56 from being divided in the circumferential direction. A plurality of radial ribs (liquid prevention ribs) 6 as ribs are provided in the circumferential direction. In this example, it is equally distributed at 12 locations. As shown in FIG. 1C, the height h of the radial rib 6 is also lower than the height H of the fitting protrusion 54 (h <H). Furthermore, in this embodiment, the fitting protrusion It is set lower than the position with the outward projection 55 provided on the outer periphery of 54.

  The radial rib 6 extends radially and radially in the annular groove 56 and protrudes perpendicularly from the bottom surface of the annular groove 56, and the radially outer end is connected to the inner periphery of the fitting protrusion 54. Is connected to the outer periphery of the extraction tube 53. In the present embodiment, the inner sides of the radial ribs are provided radially toward the center. The bottom surface of the annular groove 56 is substantially equal to the height of the top surface of the stepped portion 52 that extends to the outside of the fitting protrusion 54, and is an annular flat surface. As described above, the height h of the radial rib 6 is lower than the height H of the fitting protrusion 54, and the fitting protrusion 54 can be bent and deformed inward.

On the other hand, the cap 7 includes a circular top plate portion 71 and a cylindrical skirt portion 72 that hangs from the outer diameter end of the top plate portion 71. An inner ring 73 fitted to the inner periphery of the part is formed to protrude.
An inward projection 74 is provided on the inner periphery of the lower end of the skirt portion 72 of the cap 7. When the cap 7 is closed, the inward projection 74 at the lower end of the skirt portion 72 is formed on the outer periphery of the fitting projection 54 of the inner plug 5. The inner periphery of the lower end of the skirt portion 72 is fitted to the outer periphery of the fitting projection 54 so as to get over the provided outward projection 55. At the fitting completion position, the lower end of the skirt portion 72 contacts the stepped portion 52 of the inner plug 5, and the upper edge of the inward projection 74 of the skirt portion 72 is engaged with the lower edge of the outward projection 55 of the fitting projection 54. The positional relationship is set so that the caps 7 are engaged, and the cap 7 is prevented from being disengaged.
Further, a finger hook portion 75 for hooking a finger when opening and closing the cap 7 is provided on the outer periphery near the top plate portion 71 from the lower end of the skirt portion 72, and the finger hook portion 75 is a hinge of the skirt 72. It protrudes on the surface opposite to 3 and has an arc shape as a whole.
Further, on the lower end side of the skirt portion 72, a liquid splash prevention guard 76 is provided which extends downward and covers the mating surface of the stepped portion 52 formed at the lower end of the skirt portion 72 and the upper end of the fixed portion 51.
The liquid splash prevention guard 76 has a configuration in which the skirt 72 is extended downward by a predetermined length, and is thinner than the thickness of the skirt portion 72 so that the outer surface becomes a surface continuous with the outer surface of the skirt portion 72. It is configured. On the other hand, a step recess 59 is provided at the upper end of the outer peripheral surface of the fixing portion 51 of the inner plug 5, and the liquid splash prevention guard 76 covers the step recess 59.
A slight gap 77 is provided between the opposing surfaces of the stepped recess 59 and the liquid splash prevention guard 76, and the content liquid can be held in the gap 77 by capillarity while preventing the content liquid from scattering. ing. The liquid splash prevention guard 76 is provided in the range excluding the vicinity of the hinge 3, in the example shown in the figure, only the circumference of about three-fourths of the fixed portion 51.

  The hinge 3 that connects the inner plug 5 and the cap 7 connects the cap 7 and the inner plug 5, and is configured to integrally form the inner plug 5 and the cap 7 by injection molding.

Next, the operation of the hinge cap of the present embodiment will be described.
When the content liquid is poured out, the cap 7 is opened with the hinge 3 as a fulcrum, the pull ring 58 is pulled to break the score 57a of the partition wall 57 to open the planned opening area 57b, and the container is opposite to the hinge 3. Tilt to the (pouring side) and pour the content liquid in the container from the pour tube 53. At that time, the content liquid staying in the annular groove 56 flows in a lower direction along the annular groove 56, but the flow in the lower direction is sequentially regulated stepwise by the radial rib 6. As a result, the dammed portions of the radial ribs 6 are dispersed and held in the circumferential direction, so that the amount of content liquid collected in the lowest region is reduced and beyond the fitting protrusion 54 to the outside. Outflow is prevented, or even if it flows out, the outflow amount can be reduced.

As described above, since the height h of the radial rib 6 is lower than the height H of the fitting protrusion 54, the portion above the radial rib 6 of the fitting protrusion 54 is freely elastically deformed inward. It is possible to effectively absorb the displacement of the shape due to the inclination between the center axis of the skirt portion 72 and the fitting projection 54 caused by the rotation of the cap 7 around the hinge 3, and the cap 7 can be opened and closed. Can be easily done.
In particular, since the height of the radial rib 6 is set lower than the position of the outward protrusion 55 on the outer periphery of the fitting protrusion 54, elastic deformation of the fitting protrusion 54 can be expected. The inward projection 74 on the inner circumference can smoothly get over the outward projection 55 of the fitting projection 54.

  And since the liquid scattering prevention guard 76 which covers the contact part of the skirt part 72 lower end and the level | step-difference part 52 is provided in the surface on the opposite side to the hinge 3 of the skirt part 72, when the cap 7 is closed, Since the splash of the content liquid adhering to the level | step-difference part 52 hits the liquid scattering prevention guard 76, scattering to the circumference | surroundings can be prevented.

  In addition, since a slight gap 77 is formed between the opposing surfaces of the liquid scattering prevention guard 76 and the stepped recess 59 of the fixing portion 51, even if the content liquid adheres to the stepped portion 52, the liquid droplets 77 So that dripping can be prevented.

Furthermore, by making the tip shape of the dispensing cylinder 53 of the inner plug 5 into the curled portion 53a, the liquid breakage after the dispensing of the content liquid is improved, and the partition wall having the planned opening region portion 57b in the dispensing cylinder 53 By making 57 a mortar-shaped inclined surface, the content liquid remaining in the inner plug 5 after the pouring is easily returned to the container, and contamination by the content liquid adhering to the outer periphery of the pouring cylinder 53 is prevented.
In addition, as a pattern of the radial direction rib 6 provided in the annular groove 56, not only a radial pattern as shown to FIG. 1 (B) but various rib patterns which prevent liquid periphery can be used.

FIG. 3 shows a deformation pattern of the liquid rotation prevention rib.
FIG. 3A shows an example in which circumferential ribs 61 that divide the annular groove 56 in the radial direction from the bottom surface of the annular groove 56 are provided. In this example, the circumferential rib 61 is provided as a circular rib that goes around the annular groove 56, and the annular groove 56 is divided into two in the radial direction, and the number of the radial ribs 6 is reduced to six. The circumferential rib 61 does not directly regulate the flow of the liquid in the circumferential direction, unlike the radial rib 6, but prevents liquid circulation in that the flow resistance is increased by forming an elongated region. effective.
Further, the entire region of the annular groove 56 is divided into 12 parts, and the area of one sectioned region is almost the same as the example shown in FIG. Even if the annular groove 56 is inclined, the residual liquid of the content liquid adheres around the corners of the groove bottom surface, the circumferential rib and the radial rib due to wettability, viscosity, etc. There is a correlation with the divided area, and if the same area is used, the same effect can be obtained.

In FIG. 3B, the circumferential rib is not a circular rib that goes around the annular groove 56, but an arc-shaped rib 62 that does not make a round. The arc-shaped rib 62 has a configuration in which the region on the dispensing side is divided in the radial direction. By providing the arc-shaped rib 62 on the lowermost side where the content liquid collects, the flow resistance is increased and the liquid flowing toward the fitting protrusion 54 is restricted. Also in this case, the area of the entire annular groove 56 is divided into 12 parts, and the area of one section area is substantially the same.
Also, with regard to the radial rib, in the above embodiment, both ends in the radial direction are connected to the fitting protrusion and the dispensing cylinder without a gap, but even if there is a gap, the flow of the content liquid is not restricted. Yes, there may be gaps at both ends or one side. Further, the radial ribs do not have to be radial with respect to the radial direction, and can have various rib shapes that can regulate the flow of the content liquid.

  In the above-described embodiment, the case where the inner stopper is fitted and fixed to the container mouth portion has been described. In addition, various configurations can be employed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Hinge cap 3 Hinge 5 Inner plug 51 Fixed part, 51A Outer cylinder part, 51B Inner cylinder part 52 Step part 53 Outflow cylinder, 53a Curl part 54 Fitting protrusion 55 Outward protrusion 56 Annular groove 57 Bulkhead, 57a Score, 57b Planned opening area 58 Pull ring, 58a Connecting part 6 Radial direction rib (Liquid rotation prevention rib)
61 Circumferential rib 62 Arc-shaped rib 7 Cap 71 Top plate part, 72 Skirt part, 73 Inner ring, 74 Inward projection 75 Finger hook part, 76 Liquid splash prevention guard, 77 Crevice 8 Fixing protrusion 81 Anti-rotation rib 100 Container Mouth, 101 annular recess

Claims (6)

A fixing part fixed to the container mouth part, a fitting protrusion protruding upward, and an inner stopper having a dispensing cylinder;
A cap is openably connected via a hinge to the intermediate plug, Ri consists,
The fixing part is a double cylinder having an outer cylinder part fitted to the outer periphery of the container mouth part and an inner cylinder part fitted to the inner circumference of the container mouth part. In the hinge cap where the upper end is connected by an annular stepped portion, and the fitting projection and the extraction tube protrude upward through the stepped portion ,
In the annular groove formed between the fitting protrusion and the dispensing cylinder, a plurality of radial ribs are provided as anti-fluid ribs, and the height of the radial rib is higher than the height of the fitting protrusion. The hinge cap is characterized by lowering.   The hinge cap according to claim 1, wherein a height of the radial rib is set to be lower than a position of the outward protrusion on the outer periphery of the fitting protrusion.   The liquid splash prevention guard is provided at the lower end of the skirt portion of the cap, and extends downward to cover the stepped portion formed at the upper end of the fixing portion of the inner plug. Hinge cap.   The hinge cap according to any one of claims 1 to 3, wherein a finger hook portion is provided in the vicinity of the top plate portion of the skirt portion of the cap.   The hinge cap according to any one of claims 1 to 4, wherein a partition wall having a planned opening region portion in the dispensing tube of the inner plug is a mortar-shaped inclined surface.   The hinge cap according to any one of claims 1 to 5, wherein an upper end portion of the dispensing tube of the inner plug is a curled portion that curves outward.

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