KR20070121342A - Safety cap - Google Patents

Abstract

A safety cap is provided to minimize the movement of an outer stopper with respect to an inner stopper and to make the inner stopper rotated simultaneously with the initiation of the torque of an outer stopper. A safety cap includes an inner stopper(10) and an outer stopper(20). A screw coupled to an inlet of a bottle is formed on the inner circumference of the inner stopper. Plural ratchet protrusions(12) are formed to protrude on the edge of the upper surface of the inner stopper. A holding recess(13) is formed between ratchet protrusions. The upper surface of each ratchet protrusion inclines upwardly in a loosening direction. A frame(21) is formed on the lower end of the inner circumference of the outer stopper to rotatably support the inner stopper. Plural holding protrusions(22) are formed to protrude on the edge of the bottom surface of the outer stopper.

Description

Safety cap {Safety cap}

Figures 1a and 1b are schematic diagrams showing the problem of the general safety plug,

2 is an exploded perspective view showing a safety stopper according to the present invention;

3 is a cross-sectional view of the coupled state of FIG.

4 is a plan view of the inner stopper of the safety plug according to the present invention;

5 is a bottom view of an external stopper according to the present invention,

6 is a partially cut plan view showing a state in which the inner and outer stoppers of the safety stopper according to the present invention are assembled;

7a to 7d are schematic side views showing an operating state of the safety plug according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: Inner Plug 11: Screw

12: ratchet protrusion 12a: slope

12b: Lockout Wall 12c: Lockout Wall

13: Hanging groove 14: Pivot protrusion

20: outer plug 21: frame

22: protrusion 23: hinge boss

h ₁ : locking locking wall height h ₂ : locking locking wall height

B: container M: spout

C: safety plug

The present invention relates to a cap for opening and closing a spout of a storage container used for storing a liquid or powdery object, and particularly when the contents stored in the container are harmful to a human body such as detergents, medicines or pesticides. The present invention relates to a safety stopper that prevents the stopper from being opened so that children can be safely protected from dangerous goods.

As is well known, liquid or powdery objects cannot be stored on their own, so they are stored in separate storage containers, and plastic containers are mainly used as storage containers for this purpose.

This storage container has a spout on one side to put the contents in and out of the inside, and the spout has a structure that is opened and closed by a stopper for safe storage of the contents.

On the other hand, the stopper is usually made of a single body, for easy opening and closing is mounted on the spout of the container by screwing method it is common to open and close the stopper by turning clockwise or counterclockwise.

For this reason, anyone can easily open and close the stopper, for example, a safety accident frequently drinking misunderstanding by a child or the elderly who lack judgment, a container in which drugs, chemicals, or detergents harmful to the human body are stored.

In order to solve this problem, it consists of a dual body structure of the inner and outer stopper that can rotate the stopper with each other, and when closing the stopper by applying a ratchet structure between them, you can just turn, but when opening It is widely used to provide a so-called safety stopper that the inner stopper screwed to the spout of the container is rotated and opened together with the outer stopper only when the outer stopper is turned to the inner stopper.

This safety stopper has been presented a number of technologies at home and abroad, for example, can be found in Korea Patent No. 0563989.

This technology has a plurality of support pieces with one side inclined to the upper surface of the inner stopper at regular angle intervals, and a plurality of fixing pieces protrude obliquely in one direction on the outer periphery, and the bottom of the outer stopper has a slope corresponding to the inclined surface of the support piece The pieces protrude at regular angle intervals, and a plurality of fixing protrusions protruding inclined in the opposite direction to the fixing piece of the inner plug is provided on the inner circumference, and the inclined surface of the support piece and the pressing piece is formed by one or more uneven couplings.

However, the child protection safety cap of this technology has a number of problems, such as:

First, as shown in FIG. 1A, the support pieces 3 of the inner stopper 2 are spaced apart at a significantly larger distance s than the width b of the pressing piece 5 of the outer stopper 4. Due to this, the rotational flow of the outer stopper 4 against the inner stopper 2 is very severe, which causes the press piece 5 to hit the support piece 3 during capping in the production line, thereby causing wear. There is a high possibility that the shipment will be made without being locked tightly.

That is, the safety stopper 1 in the production line is held in the automatic capping chuck (rotating) by a predetermined angle is coupled to the spout of the container, the support piece 3 of the inner stopper (2) interval (s) Is large and the width of the pressing piece 5 of the outer plug 4 located between them is relatively very small so that the pressing piece 5 of the outer plug 4 is supported by the support piece 3 of the inner plug 2 when capping. It is not caught immediately, but after being rotated by a certain angle with respect to the inner plug 2, it is caught and transmits a torque.

Therefore, a collision occurs in the support piece 3 and the pressing piece 5, and at this time, abrasion occurs in the contact portion between the support piece 3 and the pressing piece 5, which is a synthetic resin, due to the strong torque of the capping chuck. The inner stopper 2 is less locked to the container spout by the sliding angle of (4), causing the contents to leak during shipping and transportation.

Secondly, the above-mentioned collision problem during capping occurs repeatedly even during the use of the shipped product, and when the wear and tear are severe after repeated opening and closing for a long time, the pressing piece 5 is not caught by the support piece 3 and the outer plug 4 is There is also a fear that the inner stopper 2 may be loose.

For this reason, Korean Patent No. 0563989 has a plurality of fixing pieces and fixing projections which are applied to each other only when locking the stopper 1 on the outer circumference of the inner stopper 2 and the inner circumference of the outer stopper 4 together at a predetermined angle interval. It has a complicated configuration.

Third, for the same reason, even when opening the stopper, as shown in FIG. 1B, the torque is not transmitted directly to the inner stopper 2, but after sliding by a predetermined angle, the pressing piece 5 of the outer stopper 4 is closed by the inner stopper ( Since it is caught by the support piece 3 of 2), not only the opening is somewhat smooth, but also the press piece 5 hits the support piece 3, so that there is a high possibility of abrasion at both contact portions.

In particular, since the contact surface of both ends of the stopper direction is made of an inclined surface to induce the idling of the outer stopper (4) relative to the inner stopper (2), when the wear due to repeated opening and closing, pressing the outer stopper (4) by pressing The piece 5 is not securely caught by the support piece 3, and the outer plug 4 is turned away, which causes a problem of opening the plug.

Fourth, when opening the stopper (1) without turning the outer stopper (4), the inclined surface to guide the outer stopper (4) can be turned against the inner stopper (2) and the inner stopper (2) support piece (3) Since the support piece 3 of the inner stopper 2 is formed on the side of the outer stopper 5 and the pressing piece 5 has the same height h as a whole, The pressing piece 5 has a problem that the inner plug 2 rotates together with the support piece 3 so that it is not easily caught by the support piece 3.

Therefore, there is still a concern that children do not have difficulty opening and drinking the contents because it is not so different from a normal single body stopper.

Moreover, the spout of the container is generally provided in the vertical direction on the upper part of the body bar, the outer stopper 4 is seated on the inner stopper 2 by its own weight, so when dabbling by hand to open the stopper 1 Even if a force is not applied downwards, since a certain amount of force is naturally applied downwards, if a torque of more than a predetermined torque is applied, there is a high risk of opening the stopper 1 without being too difficult for a child.

In addition, in order to open the stopper 1, the torque applied to the outer stopper 4 should be able to be transmitted to the inner stopper 2 without a possible loss, so that the angle of the inclined surface of the support piece 3 should be large with respect to the horizontal. When the structure is loosened, idling is hardly generated and the inner stopper 2 can be easily opened even if it is turned without pressing with great force.

Fifth, a large torque is required because the support piece 3 and the pressing piece 5 of the inner and outer stopper 2 and 4 are in contact with the inclined surface when the stopper 1 is opened, so that a large torque is required. To facilitate this, a separate concave-convex coupling structure is taken on the inclined surface, which makes it easier to open by children.

The present invention has been made to solve the above-mentioned conventional problems, and minimizes the flow of the external plug to the internal plug to minimize the flow of the external plug when the capping in the production line and opening of the stopper and the start of the torque to the external plug By simultaneously rotating the stopper, the stopper can be opened and closed very easily, and prevents opening and closing troubles caused by the wear of the ratchet structure, and provides a safety stopper that tightly tightens the stopper during capping to prevent leakage of contents after shipment. Its purpose is.

Another object of the present invention, the safety of the structure is simple, but when you open the stopper when the external stopper is not strongly pressed against the inner stopper with great force so that the outer stopper is very easy and smooth idling to prevent the opening by children Is to provide a stopper.

Still another object of the present invention is to provide a safety stopper which can be easily opened without having to apply a large torque while having to press the external stopper with a large force by allowing the torque applied to the external stopper to be directly transmitted to the inner stopper without loss. It is.

In order to achieve the above objects, the safety stopper according to the present invention has a screw which is coupled to the spout of the container on the inner circumference thereof, and a plurality of ratchet protrusions are formed at a predetermined angle on the upper edge and are caught between the ratchet protrusions. Grooves are formed, each engaging groove has the same width along the radial direction has a ratchet protrusion has a trapezoidal shape, the upper surface of each ratchet protrusion inclined upward toward the release direction; The lower end of the inner circumference has an edge so that the inner stopper can be rotatably inserted and rotated in an axial direction, and a plurality of stopping protrusions are disposed at predetermined angles on the bottom edge so as to protrude to a predetermined height so as to correspond to the stopping grooves of the inner stopper. External stopper; characterized in that consisting of.

According to one preferred feature of the invention, the pivot protrusion (protrusion) is formed in the center of the upper surface of the inner stopper, the hinge boss is rotatably coupled to the pivot protrusion of the inner stopper in the center of the bottom of the outer stopper (projection) It is formed to ensure accurate and stable opening and closing operation while minimizing the flow of the outer plug to the inner plug.

According to another preferred feature of the present invention, the circumferential width of the ratchet protrusion of the inner stopper is formed larger than the width of the catching groove, leading to smooth idling of the outer stopper during the unwinding operation and stable torque transmission upon opening and closing. .

Accordingly, the present invention is very easy to open and close the stopper because there is almost no flow between the inner and outer plugs because the inner plug is rotated together with the start of the torque to the outer plug when capping and opening the cap in the production line In addition, the opening and closing trouble due to the wear of the ratchet structure as in the prior art is not generated, and the cap is tightly tightened at the time of capping, thereby preventing the leakage of the contents after shipment.

Particularly, when the stopper is opened with a simple structure but the outer stopper is not strongly pressed against the inner stopper with a large force, the outer stopper can be idling very easily due to the gentle inclination of the upper surface of the ratchet protrusion, thus preventing the opening by children. You can do it.

Therefore, the present invention, as well as improving the reliability and safety of the safety plug has a great effect in improving the safety of the product adopted.

Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

2 and 3, the safety stopper C according to the present invention includes an internal stopper 10 which is screwed into the spout M of the container B, similarly to a normal safety stopper, and the internal stopper 10. It is coupled to surround the double stopper structure of the outer stopper 20 to transfer the torque for opening and closing the inner stopper (10).

The inner plug 10 has a cylindrical shape with a lower surface open, and has a cup-shaped cross section. The inner circumference of the inner cap 10 is provided with a screw 11 corresponding to the screw S formed on the outer circumference of the spout M of the container B, and is coupled to the spout M of the container B so as to be openable and closeable. .

A plurality of ratchet protrusions 12 are disposed at a predetermined angle to protrude at an appropriate height on the upper edge of the inner stopper 10, and the latching protrusions of the outer stopper 20 described below are formed between the ratchet protrusions 12. A plurality of engaging grooves 13 to which the 22 is fitted are formed.

The locking groove 13 is formed with the same circumferential width b at all positions along the radial direction, so that the ratchet protrusion 12 is directed toward the center of the inner plug 10 in plan view, as shown in FIG. Increasingly, the circumferential width gradually decreases at the same time on both sides.

At this time, the ratchet protrusion 12 is made larger in the circumferential width of the ratchet protrusion 12 and the locking groove 13. This minimizes the gap formed between both when the inner plug 10 and the outer plug 20 are assembled, thereby minimizing the circumferential flow of the outer plug 20 to the inner plug 10 when opening and closing the plug C. Together, to increase the durability of the stopper to be repeatedly opened and closed by suppressing the wear of the ratchet protrusion 12 as much as possible.

On the other hand, when the top surface of the ratchet protrusion 12 is turned without pressing the outer stopper 20 against the inner stopper 10 strongly when opening the stopper (C), the locking projection 22 of the outer stopper 20 described later is Rather than being caught by the ratchet protrusions 12 of the inner stopper 10, the inclined surface 12a is gently inclined upwardly in the unwinding direction so as to ride over.

At this time, when the side of the lower height h ₁ of the ratchet protrusion 12 is called the locking engaging wall 12b, and the side of the relatively high height h ₂ of the opposite side is called the locking locking wall 12c, Since the locking wall 12b is perpendicular to the upper surface of the inner stopper 10, its height h ₁ is a block of the outer stopper 20 when there is no strong pressing toward the inner stopper 10 when opening the stopper C. It is desirable that the machine 22 be configured to a very low height, such as 1 mm or less, so that the ratchet protrusion 12 can easily ride over it.

In addition, the height h ₂ of the locking locking wall 12c of the ratchet protrusion 12 is secured while the locking protrusion 22 of the external plug 20 is closed when the plug C is closed. It is preferable to make the height not so high, for example, 2 mm or less, so that idling is smooth and easy.

 On the other hand, the ratchet protrusion 12 has a trapezoidal shape in which the circumferential width thereof gradually decreases toward the center of the outer plug 20 in plan view, and the inclination of the outer end and the inner end of the inclined surface 12a is different. The upper inclined surface 12a of 12) forms a geometric plane in which an inclination is formed simultaneously from the outer edge of the locking catching wall 12b toward the inner edge of the locking catching wall 12c, and thus, when the outer stopper 20 is idle. It leads to smooth and smooth operation.

In the center of the upper surface of the inner stopper 10, when combined with the outer stopper 20, the pivot protrusion 14 is formed to protrude along the center to ensure more accurate centering (centering) to ensure a more stable rotational operation during opening and closing And the hinge boss 23 of the external stopper 20 described later.

The outer stopper 20 also has a cup-shaped cross-section, like the inner stopper 10, having a cylindrical shape with an open lower surface. At the lower end of the inner circumference of the outer stopper 20, a border 21 is formed to protrude from the inner stopper 10 assembled therewith.

As shown in FIG. 5, the bottom edge of the outer stopper 20 is fitted into the engaging groove 13 of the inner stopper 10 to ratchet the torque applied to the outer stopper 20 when opening and closing the stopper C. A plurality of locking projections 22 which are transmitted to the inner stopper 10 through the () are arranged at regular angle intervals to protrude.

The locking protrusion 22 is formed to have a width corresponding to the locking groove 13 of the inner plug 10 and is formed to a height corresponding to the height h ₂ of the ratchet protrusion 12. Accordingly, as shown in Figure 6, when assembling with the inner stopper 10, the ratchet protrusion 12 and the gap of the inner stopper 10 is arranged in close contact alternately close to minimize the flow between both.

On the other hand, the hinge boss 23 to which the pivot protrusion 14 of the inner stopper 10 is fitted is formed at the center of the bottom of the outer stopper 20 to keep the centering of both stable.

The remaining reference numeral 24 is a serration which is formed in the center of the outer circumference of the outer cap 20 to suppress slippage during opening and closing, and 30 is a packing attached to the bottom of the inner cap 10.

The operation of the safety plug C according to the present invention having such structural features will be described in parallel with FIGS. 7A to 7D.

7A is a state in which no external force (torque) is applied to open or close the stopper C, and at this time, the locking protrusion 22 is caught by the inner stopper 10 by the weight of the outer stopper 20. It is fitted in (13). Particularly, in the present invention, since the ratchet protrusion 12 of the inner stopper 10 has the inclined surface 12a on the upper surface, the outer stopper 20 may be located at any position in the circumferential direction. By the weight of the locking projection 22 is located in the locking groove 13 of the inner stopper (10).

In this state, when the outer stopper 20 is simply turned in the unlocking direction to open the stopper C, as shown in FIG. 7B, the engaging protrusion 22 of the outer stopper 20 is formed of the inner stopper 10. It is not caught by the ratchet protrusions 12 and slips over the inclined upper surface of the ratchet protrusions 12 so that the inner stopper 10 cannot be opened.

That is, the ratchet protrusion 12 provided on the upper surface of the inner stopper 10 of the present invention has a low height and is made of an inclined surface 12a that is gently inclined upwardly toward the release direction, and the outer stopper when the release operation When the locking catch wall 12b of the ratchet protrusion 12 which blocks the locking protrusion 22 of the 20 has a very low height h ₁ , the strong pressing force toward the inner stopper 10 does not work at the same time. The loosening torque applied to the outer stopper 20 does not overcome the coupling force of the inner stopper 10 that is strongly screwed into the spout M of the container B, and the stopper 22 is pushed back while the outer stopper 20 is pushed back. It is very easy to get over the ratchet protrusions 12 and turn around.

However, as shown in FIG. 7C, when the outer stopper 20 is strongly turned toward the inner stopper 10 and turned in the release direction, the outer stopper 20 is not pushed back by the force pushing toward the inner stopper 10. As a result, the locking protrusion 22 of the outer stopper 20 does not pass over the ratchet protrusion 12 of the inner stopper 10 but is caught by the release catching wall 12b.

Then, the loosening torque applied to the outer stopper 20 is transmitted to the ratchet protrusion 12 as it is, and thus the inner stopper 10 rotates simultaneously with the outer stopper 20 in the disengaging direction, thereby the spout M of the container B (M). ) Can be opened.

At this time, in the present invention, the ratchet protrusion 12 not only has a wide width in the circumferential direction, but also the locking groove 13 and the locking protrusion 22 of the outer stopper 20 provided therebetween are formed to correspond to each other. Since there is almost no gap, the release torque is started to the outer stopper 20 and the release torque is transmitted to the inner stopper 10 without slipping of the outer stopper 20 relative to the inner stopper 10.

Therefore, the wear of the ratchet protrusion 12 generated by the locking protrusion hitting the ratchet protrusion of the inner plug after sliding the outer stopper for a predetermined angle as in the prior art does not occur, as well as opening the stopper C easily and quickly. Will be.

On the other hand, when closing the stopper (C), as shown in Figure 7d, the stopper 22 of the outer stopper 20 is simply inserted in the locking groove 13 of the inner stopper 10, the outer stopper 20 ) Only in the locking direction (the reverse of the release direction).

Then, the locking projection 22 of the outer cap 20 is caught by the ratchet protrusion 12 of the locking cap wall 12c of the inner cap 10 having the same height h ₂ , and the inner cap is simultaneously started with the locking torque. 10 is rotated together with the outer plug 20.

Accordingly, the inner cap 10 is tightly screwed to the spout M of the container B to close the container B.

At this time, the stopper (C) of the present invention is the same as the outside because the latching protrusion 22 and the ratchet protrusion 12 and the locking groove 13 of the inner stopper 10 are assembled without a gap. The locking torque is started at the outer stopper 20 without the slippering of the stopper 20, and the inner stopper 10 is rotated at the same time. Therefore, as shown in the related art, the engaging protrusion 22 of the outer stopper 20 is It is possible to reliably prevent troubles in which the ratchet protrusion 12 hits the ratchet protrusion 12.

In particular, the wear of the ratchet structure generated during capping of the cap C by the capping chuck in the production line can be reliably prevented, thereby ensuring the durability of the cap C that is repeatedly opened and closed after shipment, as well as the cap C. ) Can be locked firmly in a set state, minimizing leakage of contents after shipping.

As described above, according to the safety plug according to the present invention, since the inner plug and the outer plug is assembled without a gap, there is almost no flow between each other, the inner stopper when capping and opening the stopper in the production line Rotating together with the onset of torque, it is possible to open and close the plug very easily, and the opening and closing trouble due to the wear of the ratchet structure as in the prior art does not occur, and the cap is tightly tightened at the time of capping to prevent leakage of contents after shipment. It can be reliably prevented.

In particular, when opening the stopper with a simple structure, the outer stopper is very easily idling when the outer stopper is not strongly pressed against the inner stopper with a large force, it is possible to reliably prevent the opening by children.

Therefore, the present invention has a very excellent effect that contributes greatly to the safety and reliability of the safety plug as well as to enhance the safety of the product adopting it.

Claims (3)

As a safety stopper to open and close the spout safely so that a dangerous substance storage container cannot be opened by a child, such as a child, Screws are coupled to the spout of the container in the inner circumference, and a plurality of ratchet protrusions are formed at a predetermined angle on the upper edge, and a catching groove is formed between each ratchet protrusion, and each catching groove is the same along the radial direction. It consists of a width of the ratchet protrusion has a trapezoidal shape, the upper end of each ratchet protrusion inclined upward toward the release direction; It has an edge at the bottom of the inner circumference to insert and support the inner stopper so as to be rotatable and axially movable, and a plurality of engaging projections are arranged at predetermined angles on the bottom edge so as to correspond to the locking grooves of the inner stopper and protrude at a predetermined height. Safe stopper, characterized in that consisting of; The safety plug of claim 1, wherein a pivot protrusion protrudes from a center of an upper surface of the inner stopper, and a hinge boss is rotatably coupled to a pivot protrusion of the inner stopper at a center of a bottom of the outer stopper. . The safety cap according to claim 1 or 2, wherein the circumferential width of the ratchet protrusion of the inner cap is greater than the width of the locking groove.

Images