JP6234019B2 - cap - Google Patents

Description

  The present invention relates to a cap, in particular, a cap that opens a spout in a partition wall provided inward of a pouring cylinder.

  Conventionally, in a cap composed of a cap base and an upper lid that is mounted on a container body that contains a liquid content, a partition wall is continuously provided inside the dispensing cylinder of the cap body, and the space between the container body and the cap is sealed. And the cap which pulled up a part of partition and opened a spout in a partition at the time of content liquid use is conventionally known (for example, refer patent document 1).

JP 2002-337918 A

However, although the cap described in Patent Document 1 pulls the pull top portion 16 from the partition wall 5 through the knob portion 16a and cuts the fragile portion 15 to open the cap, the knob portion 16a can be pulled by pulling the knob portion 16a. Since a force is applied to a wide range of the pull-top portion 16 near the connecting portion of the flared portion and only the end of the fragile portion 15 in the vicinity of the portion is pulled upward, the fragile portion 15 is only pulled diagonally, and is fragile. There is a problem that a large force is required to cut the portion 15.
Further, if the entire partition wall 5 is made thin in order to reduce the plugging force, there is a problem that the vicinity of the fragile portion 5 is deformed and a pulling force is applied, so that a large force is required to cut the fragile portion 15. It was.

  An object of the present invention is to provide a cap with reduced opening strength so that a spout can be opened in a partition wall even with a weak tensile force.

In order to solve the above-described problems, the present invention provides a cap comprising a cap base mounted on the mouth of a container body and an upper lid as a cap. The cap base is engaged with the outer cylinder and the upper lid. A ring, a pouring tube, and a partition wall continuously provided on the inner periphery of the pouring tube. The partition wall includes a sealing plug portion that forms a spout, and is a ruptureable thin wall formed by a recessed cutting groove. A thick-walled portion is formed by reinforcing ribs extending downward along the outer peripheral edge of the cutting groove on the lower surface of the partition wall, and a finger ring is attached to the upper surface of the sealing plug portion via a support post. Are provided, and a reinforcing protrusion protruding slightly higher than the upper surface of the other sealing plug part is formed in the vicinity of the lower end edge of the column on the upper surface of the sealing plug part and the opposite end of the column. Adopt the configuration.

  As an example of the cap base, the outer circumference of the cap base is cut from the outer periphery, and the circumference of the circular base of the predetermined circumferential angle from the starting point separating the upper thin portion on one end side of the outer peripheral notch. A slit groove cut to a predetermined depth is recessed from above so as to extend in the direction, and the inner peripheral side of the bottom surface of the slit groove is a breakable thin-walled connecting portion that connects the outer cylinder and the engagement ring. A configuration characterized by the above is adopted.

  In the cap of the present invention, the partition wall is formed with a thick portion with reinforcing ribs protruding downward along the outer peripheral edge of the cutting groove, so that when the finger ring is pulled, the peripheral edge of the cutting groove The thick-walled part is reinforced by the reinforcing ribs, whereas the thin-walled sealing part is easily deformed compared to the thick-walled part, making it easier for shear force to work between the thick-walled part and the weakened part. Is easily cut, so that the opening strength is reduced, and a spout can be opened in the partition wall even with a weak tensile force.

It is explanatory drawing of the cap of this invention, (a) is sectional drawing at the time of lid closing, (b) is a bottom view at the time of lid opening. It is explanatory drawing of a cap, (a) is a top view, (b) is the principal part enlarged view of (a). It is a top view at the time of sorting disposal of a cap.

  Next, examples of the cap of the present invention will be described with reference to the drawings.

  1 and 2, A is a cap base mounted on the mouth of the container body, and B is an upper lid connected to the cap base A via a hinge C.

The cap base A includes an outer cylinder 1 that is connected to the upper cover B by a hinge C, and an engagement ring 3 that is connected to the upper inner peripheral side of the outer cylinder 1 and has a locking protrusion 2 that engages the upper cover B. An inner cylinder 4 having an upper portion continuously provided on the inner peripheral side of the engagement ring 3, a pouring cylinder 6 erected on the inner peripheral side of the inner cylinder 4 via a ring-shaped bottom wall 5, and an extraction cylinder 6 And a partition wall 7 connected to the inner edge of the wall.
The engagement ring 3 has a locking projection 2 protruding in the outer peripheral direction at the top, and the upper end is formed on a flat surface.

An air vent recess 8 is provided on the inner peripheral surface of the dispensing cylinder 6 to allow air in the cap to escape at the time of plugging.
In addition, an air vent groove 9 serving as an air flow path when the lid is closed is also provided at the upper end of the outer cylinder 1.

In the cap base A, the inner periphery of the outer cylinder 1 engages with the outer periphery of the mouth portion of the container body, and the outer periphery of the inner tube 4 engages with the inner periphery of the mouth tube of the container body, thereby sandwiching the mouth portion of the container body. In this way, it is attached to the container.
A bulging ring 10 is formed on the inner peripheral surface of the outer cylinder 1 to engage with the outer periphery of the mouth of the container body.

In the vicinity of the hinge C of the outer cylinder 1, a substantially V-shaped outer peripheral cut portion 11 in a plan view on the outer peripheral surface, and an inner peripheral cut portion 12 on the bulging ring 10 on the inner peripheral surface corresponding to the outer peripheral cut portion 11. Are engraved in the vertical direction.
Between the outer periphery cutting part 11 and the inner periphery cutting part 12 of the outer cylinder 1, it is the vertical thin part 13 used as the vertical direction tear line which can be fracture | ruptured in the vertical direction.

On the hinge C side of the outer peripheral cut portion 11 of the outer cylinder 1, a slit groove 15 cut to a predetermined depth is recessed from above so as to extend in the circumferential direction from the starting point across the upper thin portion 14. Yes.
The slit groove 15 expands the opening in the radial direction within a certain range from the starting point, and has a certain opening width from the base of the engagement ring 3 to the upper inner peripheral side of the outer cylinder 1, and has a predetermined circumferential angle. It extends in the circumferential direction over the arc range.

  The inner peripheral side of the bottom surface of the slit groove 15 is a thin connecting portion 16 that is a breakable circumferential tear line that connects the outer cylinder 1 and the engagement ring 3.

In the partition wall 7, a sealing plug portion 17 that forms a spout for pouring the contents inside the container body is formed through a cutting groove 18 that is recessed from the lower surface. A weakened portion 19 that can be broken is formed.
In the partition wall 7, the sealing plug portion 17 is formed to be thin, and a thick wall portion in which a reinforcing rib 20 is projected downward is formed on the outer peripheral edge of the cutting groove 18 on the lower surface of the partition wall 7.

  On the upper surface of the sealing plug 17, a finger ring 22 for pulling up and opening the sealing plug 17 through the support column 21 is connected to the hinge C side, near the end on the opposite side of the hinge C and the lower end of the support column 21. Reinforcing protrusions 23a and 23b are formed on the edge so as to protrude slightly higher than the upper surface of the other sealing plug portion 17.

  A buffer piece 24 for softening the contact pressure to the fingertip is formed in the lower part of the finger ring 22 opposite to the hinge C.

The top lid B is suspended from the top wall 30, the side peripheral wall 31 suspended from the outer edge of the top wall 30, and the rear surface of the top wall 30. A sealed cylinder 32 that is tightly fitted is provided.
On the back surface of the top wall 30, an annular groove is provided from the lower surface on the inner peripheral side of the sealing cylinder 32, and an internal pressure absorbing thin portion 33 is formed.

The side peripheral wall 31 has an annular engagement portion 34 that is engaged with the outer periphery and upper end flat portion of the locking protrusion 2 and the locking ring 3 of the cap base A at the inner peripheral lower portion at the time of closing and maintains the closed state. The hinge C is continuously provided at a predetermined position on the outer periphery.
On the outer periphery of the side wall 31 opposite to the hinge C, a knob 35 protrudes from the lower end, and above the knob 35, a lightening recess 36 is formed in a predetermined range.

  The annular engagement portion 34 includes a side circumferential fitting portion 34a and an engagement top surface 34b. The engagement top surface 34b is provided with an air vent groove 37 for releasing air in the cap at the time of stoppering. Yes.

Next, usage modes and operational effects of this embodiment will be described.
The cap of the present invention is filled with the content liquid in the container body, and then plugged from above in a closed state, and is attached to the container body.

  When a pressing force is applied from above the upper lid B at the time of plugging, the upper lid B is slightly lowered with respect to the cap body A, so that the lower end of the outer periphery of the sealing cylinder 32 of the upper lid B becomes the dispensing cylinder 6 of the cap body A. The air is lowered to a position corresponding to the recessed air vent recess 8, and the air sealed inside the sealing cylinder 32 and the extraction cylinder 6 is discharged outward through the air vent recess 8.

Further, the side peripheral wall 31 of the upper lid B is lowered, and the engagement top surface 34b of the annular engagement portion 34 is pressed against the upper end flat portion of the engagement ring 3 of the cap body A, so 36 is deformed, the lower portion of the side peripheral wall 31 in the vicinity of the lightening recess 36 is directed outward, and a gap is formed between the side peripheral fitting portion 34 a in the vicinity of the lower portion and the outside of the engagement ring 3.
The air sealed inward of the side peripheral wall 31 is outside the cap through the air vent groove 37 provided on the gap and the engagement top surface 34b and the air vent groove 9 provided on the upper end of the outer cylinder 1 of the cap body A. To be discharged.

  When the pressing force is released from above the upper cover B after the stoppering, the upper cover B is immediately restored, and the lower end of the outer periphery of the sealing cylinder 32 and the inner periphery of the extraction cylinder 6 are engaged and sealed, and the side periphery is fitted. When the joining portion 34a and the outside of the engagement ring 3 are engaged and sealed, the air in the cap becomes slightly negative pressure.

Because the air in the cap is slightly negative pressure, when the hot water shower is applied from above the cap for sterilization or cleaning after the stoppering, the air in the cap is warmed and the internal pressure is increased. However, there is a margin for the negative pressure, and the upper lid can be prevented from opening due to the expansion of the air in the cap.
Further, since the upper lid B is provided with the annular inner pressure absorbing thin portion 33 on the top wall 30, even if the internal pressure of air inside the sealing cylinder 32 of the cap further increases, the inner pressure absorbing thin portion 33 Since the central portion of the top wall 30 is deformed so as to swell and the increase in internal pressure is suppressed, inadvertent opening of the upper lid can be reliably prevented.

  When opening the upper lid B, when the knob 35 of the upper lid B is lifted, first, the thinning recess 36 of the side peripheral wall 31 is deformed, and the lower portion of the side peripheral wall 31 near the thinning recess 36 is directed outward. The engagement between the annular engagement portion 34 and the outside of the engagement ring 3 of the cap base A is released from the portion, and the lid can be easily opened.

  When the content liquid is used, first, after opening the upper lid B, the finger hook ring 22 of the partition wall 7 of the cap base A is put on a finger and pulled upward to cut the weakened portion 19, thereby closing the sealing portion 17 is removed, and a spout is opened in the partition wall 7.

  When the finger ring 22 is pulled up, a force is applied to the sealing plug portion 17 near the column side 21 and the thin sealing plug portion 17 is deformed, but a reinforcing rib 20 is provided on the lower surface around the weakening portion 19 of the partition wall 7. Since the thick part is not deformed because the thick part is formed, a large shearing force is applied to the weakened part 19 and the tensile force is difficult to work. Therefore, the weakened part 19 can be cut with a weak force. The opening strength can be reduced compared to the above.

  Further, the reinforcing projection 23 is provided on the periphery of the connecting portion of the sealing plug portion 17 with the support column 21 and on the upper surface on the opposite side, and the portion of the sealing plug portion 17 is formed thick, and deformation is inhibited. The opening strength can be further reduced in combination with the effect of the reinforcing ribs 20 in the initial stage and the final stage when the finger ring 22 is pulled and unplugged.

表１からも解るとおり、本発明の実施例では、弱化部の肉厚が従来のものとあまり変わらないが、補強リブ２０を設けることで密栓部１７の肉厚をも薄くすることができ、弱化部の抜栓力を小さくすることができた。 Next, as a result of the experiment, a comparison of the plugging force between the conventional example and the embodiment of the present invention is shown.

As can be seen from Table 1, in the embodiment of the present invention, the thickness of the weakened portion is not much different from the conventional one, but the thickness of the sealing plug portion 17 can be reduced by providing the reinforcing rib 20, The plugging force of the weakened part could be reduced.

After using a container, the aspect which separates and discards the cap of this invention is demonstrated.
First, when the cap of the present invention is opened, the upper lid B is gripped and pulled outward, the connecting portion of the cap base A with the hinge C of the outer cylinder 1 is pulled and deformed, and the upper thin portion 14 is torn. Thus, the outer cylinder 1 is broken from the upper end to the position of the bottom of the slit groove 15.

  Thereafter, when the upper lid B is further pulled, as shown in FIG. 3, the vertical thin portion 13 is torn and the thin connecting portion 16 of the slit groove 15 is torn from the upper thin portion 14 side, so that the slit groove 15 of the outer cylinder 1 The outside and the bottom are separated.

When the thin connecting portion 16 of the outer cylinder 1 is cut and the outer and lower sides of the slit groove 15 of the outer cylinder 1 are separated, the inner periphery of the outer cylinder 1 engaged with the outer periphery of the mouth of the container body and The engagement with the bulging ring 10 is released.
Furthermore, when the upper lid B or the separated outer cylinder 1 is pulled upward, the cap base A can be easily removed from the mouth of the container body, and the cap and the container body can be separated and discarded.

In the above-described embodiment, the slit groove 15 is formed in the outer cylinder 1 of the cap base A from the upper surface, and the outer peripheral cut portion 11 is provided in the outer periphery of the outer cylinder 1. However, the configuration of the separation and disposal may be any configuration, and the configuration of the separation and disposal itself may be eliminated.
Therefore, the configuration of the outer cylinder of the cap base is not limited to the embodiment described above.

  In the above embodiment, the cap base A and the upper lid B are connected to each other via the hinge C, but the hinge cap is not necessary as long as the upper lid B can be freely opened and closed on the cap base A. The cap base may be provided with screw portions that are screwed respectively, and may be opened and closed by screw fitting. The configuration of the method of mounting the upper lid and the cap base is not limited to the embodiment described above.

  In the cap of the present invention, since the reinforcing rib is formed on the periphery of the weakened portion that forms the spout in the partition wall of the cap base, when the sealing plug portion is disconnected from the partition wall, it can be disconnected with a smaller force. It can be widely used as a cap that can be used with peace of mind by consumers of a wide range of age groups such as the elderly and children who are weak.

A Cap base B Top lid C Hinge 1 Outer cylinder 2 Locking protrusion 3 Engagement ring 4 Inner cylinder 5 Ring-shaped bottom wall 6 Outlet cylinder 7 Bulkhead 8 Air vent recess 9, 37 Air vent groove 10 Swelling ring 11 Outer ring 11 Part 12 Inner perimeter cut part 13 Vertical thin part 14 Upper thin part 15 Slit groove 16 Thin connection part 17 Seal plug part 18 Cutting groove 19 Weakening part 20 Reinforcement rib 21 Strut 22 Finger hook ring 23 Reinforcement protrusion 24 Buffer piece 30 Top wall 31 side Peripheral wall 32 Sealed cylinder 33 Internal pressure absorbing thin wall portion 34 Annular engagement portion 34a Side circumferential engagement portion 34b Engagement top surface 35 Knob 36 Thinning recess

Claims (2)

In a cap consisting of a cap base attached to the mouth of the container body and an upper lid,
The cap base includes an outer tube, an engagement ring that engages with the upper lid, a pour tube, and a partition wall that is connected to the inner periphery of the pour tube,
In the partition wall, a sealing plug portion forming a spout is defined by a thin breakable weakened portion formed by a recessed cutting groove, and a reinforcing rib is provided along the outer peripheral edge of the cutting groove on the lower surface of the partition wall. A thick wall projecting toward the
A finger ring is connected to the upper surface of the sealing part via a support column .
A cap characterized in that a reinforcing protrusion that is slightly higher than the upper surface of the other sealing plug portion is formed in the vicinity of the lower end edge of the column on the upper surface of the sealing plug portion and the opposite end portion of the column . An outer peripheral cut portion cut into the outer cylinder of the cap base, and a predetermined length so as to extend in a circumferential direction over an arc range of a predetermined circumferential angle from a starting point separating the upper thin portion on one end side of the outer peripheral cut portion. A slit groove cut to a depth of is recessed from above,
The cap according to claim 1 , wherein the inner peripheral side of the bottom surface of the slit groove is a breakable thin-wall connecting portion that connects the outer cylinder and the engagement ring .

Images