KR20110005314A - Mechanism for assisting opening and closing of screw cap - Google Patents

Abstract

The screw cap opening and closing assistance mechanism 10 for assisting the opening and closing of the screw cap 20 in the screw cap mechanism is attached to the screw cap 20, one end of which is integrally rotated with the screw cap 20, and It is provided with an opening and closing auxiliary part 14 connected to the connecting portion 13, and is in contact with the outer circumferential surface of the screw cap 20 when not in use (불 使用) or not in use (, 使用), the screw cap (20) A large diameter portion that is integrally rotated and spaced apart from the screw cap 20 can be formed so that the rotation force required for the opening and closing operation of the screw cap 20 can be made smaller.

Description

Screw cap opening and closing mechanism {MECHANISM FOR ASSISTING OPENING AND CLOSING OF SCREW CAP}

Embodiments of the present invention relate to a screw cap opening and closing aid for assisting opening and closing of a screw cap in a container having a screw cap mechanism.

An engaging portion formed spirally on the outer circumferential surface of the container opening, such as a glass bottle or a plastic bottle, a vessel formed by screwing into the engaging portion to open and close the container opening, and having a bite formed on the inner circumferential surface, and closing to close one end Containers having a screw cap mechanism including a screw cap made of a portion are widely applied to various types of containers having high sealing properties and capable of repeatedly opening and closing.

In particular, containers enclosed with food have been used by many general users. For example, as a container for viscous fluid containing sugar such as jam, a glass bottle having a wide opening for containing jam is used, and a screw cap having a large radius of metal material is applied to open and close the glass bottle. many. However, glass jars, such as jam jars with screw cap mechanisms, can easily be attached between the container opening and the lid of highly viscous sugars. There is a problem that it is necessary.

In addition, as disclosed in Patent Literature 1, a tamper-evidence made of polyethylene or polypropylene, that is, tamper-evident function or virgin, is contained in a resin bottle made of polyethyleneterephthalate. PET bottles in the form of screwed resin caps having a guarantee function are widely used for beverages. Such a PET bottle is required to be able to cope with an increase in internal pressure due to an increase in temperature of an accommodating object such as a carbonated beverage or a gas space in a container, etc., and therefore high sealing property is required. Therefore, a high sealing force is required for the cap of the container opening of a PET bottle. For this reason, the cap of the PET bottle has a small outer diameter of the container opening and a small outer diameter of the cap itself, so that the cap is easy to drink, thereby increasing the force required when the cap is opened. For this reason, it is difficult for people with weak strength, such as a child or a woman, an elderly person, a patient, or a disabled person, to open a PET bottle, and to open and close even after opening.

As a counterpart of such a conventional screw cap mechanism, there is an opening aid disclosed in Patent Document 2, for example. Patent Literature 2 is a rubber band-shaped opening aid that forms a closed curve as a whole and has an anti-slip formed on the inner circumferential surface thereof. The radius of rotation of the screw cap can be increased by the thickness of the band-shaped portion, and the force required to open and close the screw cap can be reduced.

However, when using the rubber band-shaped opening aids, since the cylindrical portion of the screw cap is tightly used on the outer circumferential surface, the bite portion formed on the inner circumferential surface of the screw cap or the inner circumferential surface is strong and the engaging portion formed on the outer circumferential surface or the outer circumferential surface of the container opening is strong. Tightening tightly increased the friction force, rather it could increase the force needed to open and close. In particular, in the case of a screw cap made of plastic, there is a problem in that the cylindrical portion of the screw cap is easily deformed, and the friction force between the screw cap and the container opening is significantly increased, thereby increasing the force required for opening and closing.

Patent Document 1: Japanese Unexamined Patent Publication No. 2006-182357 Patent Document 2: Japanese Utility Model Model No. 3048082

In order to solve the above problems in the plastic screw cap, it is necessary to press only the upper portion of the screw cap in the direction of the center of the rotation radius to open and close with the opening and closing aid extended in the radial direction. Here, when the screw cap is rotated to open and close by pressing only the upper portion of the screw cap, the opening / closing aid is easily missed, so that the upper portion of the opening / closing aid is rotated along the radius vector while pressing the upper portion of the opening / closing aid downward. You have to. However, when pressing the opening and closing aid downward, the engagement portion of the inner peripheral surface of the cap and the engaging portion of the outer peripheral surface of the container is pressed against each other to increase the frictional force between the two sides and the resistance to rotation along the radial direction increases, thereby increasing the force necessary for opening and closing. There is a problem.

In addition, since the opening and closing aids are formed as a separate object, the conventional opening and closing aids are cumbersome because the opening and closing aids must be carried in the case of going out, and the size of the opening and closing aids must be carried separately. .

The present invention is to solve the above-described problems, and assists the opening and closing of the screw cap in the container provided with the screw cap mechanism is formed in a compact state in the unused state, while increasing the radius of rotation for opening and closing the screw cap in use It is possible to reduce the rotational force necessary for the opening operation and the closing operation, and to provide an opening and closing aid that can be repeatedly used at a low cost.

In order to achieve the above object, the screw cap opening and closing aid according to the embodiments of the present invention, the intermittent to continuous spiral engaging portion of the container opening formed on the outer peripheral surface, the intermittent to continuous spiral screwed to the engaging portion In the screw cap mechanism configured to include opening and closing the end of the cylindrical portion (vessel) formed in the inner circumferential surface, and the closing cap for closing the one end of the cylindrical portion and the opening so as to assist opening and closing of the screw cap In the screw cap opening and closing mechanism, the opening and closing aid is at least one connecting portion which rotates integrally with the screw cap, and connected to the connecting portion is located close to the outer circumferential surface of the screw cap when the opening and closing, the screw cap when opening or closing Large diameter portion to increase the radius of rotation to rotate in space with the screw cap apart from It is provided with one or more opening and closing portion to form a, characterized in that configured to reduce the rotational force required for the relative rotation between the opening and the screw cap in the opening or closing operation of the screw cap.

The opening and closing aid is formed as a separate object detachable from the screw cap and has an annular portion which is encircled over the closed side surface of the screw cap. The annular portion is configured to rotate integrally with the screw cap in a state in which the annular portion is mounted on the screw cap. In addition, the annular portion is integrally formed with the connecting portion and the opening / closing auxiliary portion.

The annular portion is characterized in that formed in a substantially cylindrical.

An annular part is provided with the contact part which abuts on a cylinder part in an inner peripheral surface. Moreover, a contact part is comprised so that a press contact part may contact | abut while pressing a part of cylinder part. The press-contacting portion is pressed against the side of the closing portion of the screw cap, so that the abutment portion is contacted while pressing in the center direction from the side of the closing portion without pressing the cylindrical portion during the opening or closing operation, thereby increasing the frictional resistance in the screw engagement of the engaging portion and the engaging portion. Without, the screw cap and the annular portion can be configured to rotate integrally. In addition, the contact portion is coupled to the vertical groove formed on the outer circumferential surface of the cylindrical portion is characterized in that it comprises an idle prevention portion for preventing the revolving of the annular portion to the screw cap.

An idle prevention part is formed in the shape of an elongate mountain file along the axial direction of an annular part, It is characterized in that a mountain cross section is mounted in an approximately anisotropic triangular shape. Furthermore, the anti-idulation part can be formed uniformly at regular intervals at three or more positions on the inner circumferential surface of the annular portion. However, if the idle prevention portion is provided on the inner circumferential surface of the annular portion more than necessary, the warpage of the annular portion deteriorates and the correspondence to the unbalance of the outer diameter and the outer shape of the screw cap is lowered. It is formed to a point.

The annular portion is characterized by having an average thickness of 0.5 mm or more and 3.0 mm or less.

The annular portion extends in the radial direction in the radial direction along the tubular portion of the annular portion at the upper end thereof, and is provided with an annular ceiling portion to improve the attachability of the annular portion to the screw cap and at the same time the appearance aesthetics It is characterized by raising.

The annular portion is characterized in that the rotation stop engaging portion is provided at a position where the proximal end of the opening / closing auxiliary portion is in contact with the annular portion with respect to the rotation of the opening / closing auxiliary portion having the connection portion as a supporting point.

The opening and closing aid is characterized by including an upper plate portion for closing almost the entire upper portion of the annular portion. In addition, the upper plate portion is formed between a plurality of through holes formed through the inside and outside and the through hole, and provided with a cross-linking portion connecting between the annular portion and the upper plate portion, even when provided with the upper plate portion, It can be configured to be well expressed.

The connecting portion is characterized in that one end is connected to the outer peripheral surface of the cylindrical portion.

The opening and closing auxiliary part is formed in a lever shape configured to be rotatable to the connection point, and in the opening or closing operation of the screw cap, the free end is spaced apart from the outer circumferential surface of the annular portion to form a large diameter portion of the screw cap, thereby reducing the turning radius. It is configured to increase.

The opening and closing auxiliary part is formed in a plate shape or a rod shape having a long length.

The opening and closing aid is characterized in that formed in a bow shape.

The opening / closing auxiliary portion is provided with a curved portion along the outer circumferential surface of the annular portion or the cylindrical portion.

The opening-and-closing auxiliary part is provided with the handle part bent in the bending direction at the outer peripheral surface of an annular part or a cylindrical part to become the free end.

The opening and closing aid is characterized in that the rotation stop portion for limiting the rotation angle of the opening and closing auxiliary portion as the support point near the base end connected to the connecting portion is provided.

Rotation stop is characterized in that provided extending in the radial direction from the proximal end.

The rotation stop portion is characterized in that it is provided extending in the radially outward direction from the proximal end to the annular portion or the cylindrical portion, characterized in that for adding a rotational force for engaging the finger to close the rotation stop in the closing operation operation of the screw cap to facilitate. .

The opening and closing aid is made to be easily ruptured by adding more than a predetermined force, and has a temporary cross-linking portion for temporarily connecting the opening and closing portion and the annular portion or the outer circumferential surface of the cylindrical portion, and when not in use, the opening and closing aid is the temporary cross-linking portion. It is connected to the annular portion or the cylindrical portion through the stably maintains a proximal position relative to the annular portion or the cylindrical portion, and when used for the first time it is configured to be used by bursting the temporary cross-linking portion by applying a certain force to the opening and closing auxiliary do.

The opening / closing assist mechanism includes a hook portion formed on the opening / closing auxiliary portion, and a hook portion formed on the outer circumferential surface of the annular portion or the cylindrical portion, and is formed by engaging the hook portion and the locking portion with each other and engaging the opening / closing auxiliary portion with the annular portion or the cylindrical portion. It is characterized in that it is configured to maintain the combined state when not in use, and to use in an unbonded state when in use.

The opening / closing auxiliary part is formed with a hole penetrating the opening / closing auxiliary part, and is configured to pass a kind of a string, a rubber band, a strap, or the like.

The opening / closing auxiliary part includes a leaf spring part extending from the annular part or the cylindrical part, and a relay part connected to the leaf spring part through a hinge-shaped joint part and extending from the opening / closing auxiliary part or the rotation stop part through the hinge-shaped joint part. It characterized in that it comprises a cover-type connection configured.

One end of the connecting portion is connected to the annular portion or the cylindrical portion, and the other end is connected to the opening and closing auxiliary portion.

The connecting portion is characterized in that the distance from one end to the other end is formed to 0.5mm or more.

The connecting portion is characterized in that the thickness is formed in a substantially band shape of 0.5mm or more.

The connecting portion is characterized in that the two lines in the planar shape formed by the inner and outer surfaces of the substantially band shape form an approximately hyperbolic shape.

The opening and closing aid is characterized by having a thermoplastic synthetic resin as a main component. Here, the thermoplastic synthetic resin is characterized in that the main component is at least one synthetic resin selected from polyethylene, polypropylene, polyamide.

* The opening and closing aid is characterized in that formed by the double molding of the rigid thermoplastic resin and soft synthetic resin. Here, the hard thermoplastic synthetic resin is at least one synthetic resin selected from polyethylene, polypropylene, polyamide, the soft synthetic resin is at least one synthetic resin selected from elastomers and rubber, and such a hard synthetic resin and soft synthetic resin is formed by double molding It is characterized by.

The opening / closing auxiliary part may be formed in a ring shape, and the opening / closing auxiliary part may be configured such that the container may be lifted by a finger or a hook through the opening / closing auxiliary part formed in the ring shape.

According to the screw cap opening and closing mechanism according to the embodiments of the present invention, one end is connected to the screw cap and integrally connected to the screw cap, and when the opening is closed or close to the outer surface of the screw cap when the opening and closing Spaced apart from the screw cap, and having an opening and closing aid for forming a large diameter portion for increasing the rotation radius rotated integrally with the screw cap, and is configured to be mounted on the screw cap, is simple and reduces its own manufacturing costs When not in use, it can be kept compact and compact, and when in use, it is possible to reduce the force required to open and close the screw cap by expanding radially as needed.

If the opening and closing aids are not formed integrally with the screw cap but formed as a separate object, the opening and closing aids can be made of a suitable material without depending on the material of the screw cap, thereby providing strength, durability, ease of manufacture, and manufacturing. The cost savings can be improved, and it is possible to apply the opening aid as a new instrument without changing the existing screw cap. According to this, it is possible to reuse only the opening and closing aids separated from the screw cap as needed.

When the screw cap and the opening / closing assist mechanism are formed as separate objects, for example, for sale such as a container store, for example, supplying the container with the opening / closing assist mechanism already attached to the screw cap, or It is possible for the user to provide suitable opening and closing aids mounted on the screw cap for use, and this type can be selected.

According to the opening and closing aid according to the embodiments of the present invention, it is possible to form the opening and closing aids integrally with the screw cap as needed. When the opening / closing aid is integrally formed with the screw cap, the amount of material required for the screw cap with the opening / closing aid is slightly increased, compared with the case where only the opening / closing aid cannot be reused or only the screw cap is provided. Compared to mounting the opening and closing assistive device formed by a cap and a separate object, it is possible to significantly reduce the amount of material required to save resources, and to prevent falling or loosening of the opening and closing aid, and to improve the safety of use. Can be.

In addition, when the opening / closing aid is formed in the shape of the opening / closing aid in a ring shape, it is possible to pass a finger, a hook-like object or a string-like object through the ring-shaped portion, and walk up the device. Can be improved. In particular, when the opening and closing aid and the screw cap are integrally formed, by forming the opening and closing aid in a ring shape, the opening and closing aid can be prevented from being loosened or detached from the screw cap.

1 is a perspective view illustrating a state in which a screw cap opening and closing aid according to Embodiment 1 is mounted on a screw cap in a screw cap mechanism.
Figure 2a is a cross-sectional view showing a cross-sectional view of the screw cap opening and closing assist mechanism attached to the screw cap of Figure 1, Figure 2b is a cross-sectional view showing a cross-sectional view of a screw cap opening and closing aid mounted to the screw cap of Figure 1 to be.
3A is a perspective view of a state in which the opening / closing aid of the screw cap opening / closing aid of FIG. 1 is not rotated, FIG. 3B is a perspective view of a state in which the opening / closing aid of the screw cap opening / closing aid of FIG. 1 is rotated, and FIG. Bottom view showing the bottom of the plane.
4A is a conceptual diagram showing a relationship between the magnitude of the moment when the screw cap opening and closing aid shown in FIG. 1 is rotated to the right and the state of the opening and closing aid, and FIG. 4B is a screw cap opening and closing aid shown in FIG. Is a diagram showing a relationship between the magnitude of the moment when the wheel is rotated to the left and the state of the opening / closing auxiliary part.
5A is a perspective view when the screw cap opening and closing aid according to the second embodiment is not used, and FIG. 5B is a perspective view of a state in which the opening and closing aid of FIG. 5A is rotated and separated from the cylindrical part.
FIG. 6A is a plan view of FIG. 5A, and FIG. 6B is a plan view of FIG. 5B.
7A is a perspective view when the screw cap opening and closing aid according to the third embodiment is not used, and FIG. 7B is a longitudinal cross-sectional view of the diameter portion of the screw cap opening and closing aid of FIG. 7A.
FIG. 8A is a perspective view of a state in which the opening / closing aid is rotated 180 ° in a vertical plane in the screw cap opening / closing aid shown in FIG. 7A, and FIG. 8B is a longitudinal sectional view of the diameter portion of the screw cap opening / closing aid of FIG. 7A.
Figure 9a is a perspective view of a screw cap opening and closing aid showing a modified embodiment of the screw cap opening and closing aid according to the third embodiment, Figure 9b is a screw cap opening and closing aid showing another modified embodiment of the screw cap opening and closing aid A perspective view of the appliance.
10A is a view of the screw cap opening and closing aid according to the fourth embodiment, a perspective view showing a screw cap opening and closing aid that can be integrally mounted with the screw cap, and FIG. 10B is a plan view of FIG. 10A.
FIG. 11A is a perspective view showing a state in which the opening / closing aid of the screw cap opening / closing aid shown in FIGS. 10A and 10B is rotated 90 ° in a vertical plane, and FIG. 11B is a plan view of FIG. 11A.
12A is a perspective view of an unused state of the screw cap mechanism showing one modified embodiment of the screw cap opening and closing aid according to the fourth embodiment, and FIG. 12B is a plan view of FIG. 12A.
FIG. 13A is a perspective view showing a state in which the opening / closing aid of the screw cap opening / closing aid shown in FIG. 12 is rotated 90 ° in a vertical plane, and FIG. 13B is a plan view of FIG. 13B.
14A is a plan view showing the structure of the screw cap opening and closing aid according to the fifth embodiment, and FIG. 14B is a bottom view of FIG. 14A.
15A is a side view of the screw cap opening and closing aid shown in FIG. 14, and FIG. 15B is a sectional view of the screw cap opening and closing aid shown in FIG.
FIG. 16 is a plan view of the screw cap opening and closing aid shown in FIG. 14 in a plan view showing a state in which the entire opening / closing auxiliary part is closed and the entire opening state;
17A is a plan view of an unused state showing the configuration of the screw cap opening and closing aid according to the sixth embodiment, and FIG. 17B is a plan view showing the entire opening and closing aid of FIG. 17A in an open state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The screw cap opening / closing aid according to the present invention includes an engaging portion formed spirally on an outer circumferential surface of a container opening including a glass bottle, a plastic bottle, and a metal bottle, and an inner circumferential surface configured to be screwed into the engaging portion to open and close the container opening. In a screw cap mechanism comprising a tubular portion having a bite portion formed therein and a closure portion for closing one end thereof, the screw cap mechanism is configured to assist opening and closing of the screw cap.

The container is formed by forming a substantially cylindrical container opening so as to accommodate a substance in a suitable state such as a solid, a liquid, or a gas, and engaging portions are formed on an outer circumferential surface of the container opening, but the material is not limited thereto. It is possible to target substantially various objects such as size and shape. Here, the 'engagement portion' is formed in an intermittent or continuous spiral groove or a mountain shape on the outer circumferential surface of the container opening, and is screwed to the bleeding portion formed on the inner circumferential surface of the cylindrical portion of the screw cap. It is formed to be combined.

The screw cap includes a cylindrical portion having an inner circumferential surface of a substantially cylindrical shape, and a closing portion in which one end portion in the axial direction of the cylindrical portion is closed. The inner circumferential surface of the tubular portion is formed in an intermittent to continuous spiral groove to a mountain shape, and is configured to be screwed into an engaging portion formed on the outer circumferential surface of the container opening portion. When screwing the biting portion to the engaging portion to engage the screw cap with the container opening, the closure is closed to close one end of the cylindrical portion of the screw cap so that the container opening can be kept closed and the container can be sealed. That is, the screw cap is configured to be able to close the container opening to be repeatedly open. In addition, the screw cap may be formed of an opening confirmation mechanism that is a mechanism for opening confirmation.

The screw cap opening and closing aid may be attached to the screw cap in order to reduce the rotational force required for the relative rotation between the container opening and the screw cap in the opening or closing operation of the screw cap. The method for providing a screw cap opening and closing aid to the screw cap is, as described in Example 1 to be described later, the screw cap opening and closing aid and the screw cap is formed as a separate object, after each molding the screw cap opening and closing aid is It can be mounted on a screw cap. Alternatively, the screw cap opening and closing mechanism and the screw cap may be integrally formed as described in Example 2 to be described later.

The basic configuration of the screw cap opening and closing aid is provided with a connecting portion, one end of which is integrally rotated with the screw cap, and an opening and closing auxiliary part which is partially connected to the other end of the connecting portion. Of course, such a connecting portion and the opening and closing assistant may be formed integrally.

The connection part is for applying the rotational force to the screw cap by directly or indirectly transmitting the rotational force applied from the outside to the opening and closing auxiliary portion. By connecting the connecting portion to the fitting body which is fitted to the screw cap and rotates integrally with the screw cap, the connecting body can be configured to rotate integrally with the screw cap or can be formed directly on a suitable portion of the outer surface of the screw cap.

The fitting body is used to rotate the connecting part integrally with the screw cap when the screw cap opening and closing aid is formed as a separate object from the screw cap, and is interposed between the screw cap and the connecting part. The fitting body is formed as a separate entity from the screw cap and is configured to rotate integrally with the screw cap by fitting to the screw cap.

The fitting body includes an annular portion surrounding a part or all of the outer peripheral surface of the cylindrical portion of the screw cap, and a contact portion is formed on the inner peripheral surface of the annular portion in contact with the outer peripheral surface of the cylindrical portion of the screw cap. The contact portion may be formed at the upper portion of the tubular portion of the screw cap, that is, the pressure contact portion which is in pressure contact with the side surface of the closure portion so as to press the side portion of the closure portion toward the center of the closure portion. In addition, forming the height of the annular portion to the height of the screw cap can increase the stability in the fitted state.

By forming a contact portion on the inner circumferential surface of the annular portion and configuring a portion of the contact portion as a press contact portion, the press contact portion is strongly pressed against the screw cap to press the fitting body against the screw cap, while the fitting portion of the screw cap is firmly fixed. While rotating integrally without tightening, the pressure contact alone can be easily released and unstable, but the contact portion can be brought into close contact with the height of the tubular portion of the screw cap, and the fitting body can be stabilized with the screw cap mounted.

In addition, the fitting body may be formed of the same material as the screw cap, but may be formed using another material, and it is possible to appropriately select a material that can be used repeatedly, a strong material, and an inexpensive material. . In addition, the fitting body can suppress an increase in size by reducing the size of the annular portion into a cylindrical cylinder with a small thickness, but can also form a thicker thickness or have a shape other than a cylinder. The fitting body forms an upper plate at the upper end of the annular portion to close one end in the outer circumferential direction, and in the case of closing, the fitting body prevents the printing of letters or colored patterns on the upper surface of the screw cap. May be formed of a light transmissive material.

The opening and closing aid is for amplifying the rotational force applied from the outside, and by transmitting to the screw cap through the connection to enable the opening and closing with a smaller rotational force in the opening and closing of the screw cap requiring a large rotational force. One end of the opening and closing portion is connected to the connecting portion and the other end is a free end, and when the opening and closing is located close to the outer surface of the fitting body or screw cap, when opening or closing the free end of the opening and closing assistant in the fitting body or screw cap It is configured to form a large diameter for spaced apart, to increase the radius of rotation of the opening and closing aids to rotate integrally with the screw cap.

* The opening and closing auxiliary part is located close to the outer circumferential surface of the fitting body or the screw cap when not in use, and is positioned parallel or inclined with respect to the closing part of the screw cap. Alternatively, the opening and closing portion is located along the outer circumferential surface of the annular portion of the fitting body or the outer circumferential surface of the cylindrical portion of the screw cap, and rotates the free end in a horizontal plane with the connecting portion as the axis during opening and closing so as to form the outer circumferential surface of the cylindrical portion or the annular portion. It can be configured to be spaced apart from. Here, the axial direction of the cylindrical part of a screw cap is parallel to a perpendicular direction.

In addition, the opening and closing auxiliary portion is formed in a band shape rounded in an arc shape having a width about the height of the cylindrical portion of the screw cap. Accordingly, the opening and closing auxiliary portion can use less material without increasing the size, and when opening and closing, it is possible to apply a rotational force to the screw cap by forming a lever-shaped surface that spreads in the height direction of the opening and closing auxiliary portion. The effect of assisting the opening and closing stably without hurting the fingers can be obtained.

In this case, the outer end of the proximal end connected to the connecting portion of the opening and closing auxiliary portion is formed with a rotation stop that protrudes outward, so that the rotation of the opening and closing auxiliary portion around the connecting portion, so as to stop the rotation of the opening and closing auxiliary portion at a predetermined angle when separated from the annular portion. Can be configured.

Of course, the configuration of the opening and closing assistant is not limited thereto, and, for example, the opening and closing assistant may be formed in a ring shape, and the container may be hung up by passing a finger, a hook, or a string-like object through the opening and closing assistant formed in the ring shape. Can be configured.

Example  One

Hereinafter, an embodiment of the screw cap opening and closing aid 10 of the present invention will be described in detail with reference to FIGS. For reference, the screw cap opening and closing aid 10 according to the present embodiment, made of a separate object from the screw cap 20, as shown in Figure 1 screw cap opening and closing aid 10 is a screw cap It inserts and rotates integrally with respect to (20).

The container 30 of the present embodiment is a PET bottle encapsulating a beverage or the like, and has a bottom at a lower end of a substantially cylindrical cylinder formed by blow molding a transparent resin made of polyethylene terephthalate, and a container opening 31 formed with a narrow upper portion. Has On the outer circumferential surface of the container opening 31, a row-shaped engaging portion 32 is formed to form an intermittent spiral. The container opening 31 is screwed so that the screw cap 20 can be repeatedly opened and closed through the engaging portion 32 as shown in FIG. 2A.

The screw cap 20 has a substantially cylindrical cylindrical portion 21 made of polypropylene, a closed portion 22 of a disc shape made of the same polypropylene, and a cylindrical portion 21 closing the upper end of the cylindrical portion 21. A tamper-evidence ring 23 of polypropylene material is formed integrally formed at a plurality of positions at the bottom of the polypropylene. Here, the material of the screw cap 20 may be formed of polypropylene, but does not necessarily need to be polypropylene, for example, polyethylene and the like.

On the inner circumferential surface of the cylinder portion 21, a string-shaped bite portion 24 is formed to form an intermittent spiral. The lower surface of the closing portion 22 is provided with a sealing portion 25 to be located along the inner circumferential surface of the container opening 31 when closing to improve the sealing. The sealing portion 25 is molded and mounted integrally with the screw cap 20 in this embodiment, but may be formed and mounted as a separate object. In addition, the outer shape of the tubular part 21 of the screw cap 20 is slightly smaller in diameter near the upper end in the state of finishing or bending in resin molding, and the central part in the height direction slightly swells, and the diameter is gently from here to the lower end. The cylinder is formed into a substantially cylindrical shape close to the cylindrical shape that is made smaller.

Although the opening confirmation ring 23 is integrally molded with the polypropylene cylinder 21 using polypropylene, the opening confirmation ring 23 is not necessarily limited to integrally forming and forming a double molding using different materials. It is possible. In addition, the opening confirmation ring 23 is not necessarily required, but it is effective to provide the screw cap mechanism with a guarantee effect of tamper proof evidence or virgin property. Opening confirmation ring 23 is a ring-shaped opening confirmation ring body 26 having a diameter of the lower end of the screw cap 20, and formed on the inner circumferential surface once it is once attached to the container opening 31 can be easily pulled out Although a plurality of pull-out stoppers 27 and the like are configured to make it impossible, the present invention is not limited thereto, and the technology of the necessary configuration and the like can be applied.

Screw cap opening and closing aid 10 of the present embodiment is formed of a hard polyethylene material separate from the screw cap 20. As shown in FIGS. 2A and 3C, the screw cap opening and closing aid 10 includes an annular portion 11 surrounding the outer peripheral surface of the cylinder portion 21 of the screw cap 20, and the annular portion 11. A fitting stop 12 integrally formed at the upper end, a connecting portion 13 serving as a hinge shape integrally formed on the outer circumferential surface of the annular portion 11, and an opening / closing auxiliary portion 14 formed integrally with the connecting portion 13. And a rotation stop part 15 formed integrally with the opening / closing assistance part 14. Of course, the material of the screw cap opening and closing aid 10 is not limited to hard polyethylene, and materials such as thermoplastic resins and metals such as polypropylene and polyamide may be used, and the annular portion 11 may have stability in shape. Flexibility is required for size suitability, the connecting portion 13 is required to be strong in repeated bending, and the opening and closing auxiliary portion 14 is required for stability and rigidity of the shape, so that a material satisfying these characteristics can be selected.

The annular portion 11 has a substantially cylindrical shape, the height of which is almost similar to the height of the cylindrical portion 21 of the screw cap 20, and the inner diameter is almost similar to the outer diameter of the cylindrical portion 21 of the screw cap 20. Is formed. However, the inner diameter of the annular portion 11 is formed to a degree slightly larger than the average outer diameter or the average outer diameter of the cylindrical portion 21, because the outer diameter of the cylindrical portion 21 of the screw cap 20 is not constant, as shown in FIG. As described above, the inner circumferential surface of the annular portion 11 is used as the contact portion 16 so as to contact the outer circumferential surface without pressing the outer circumferential surface of the cylindrical portion 21 of the screw cap 20. In addition, the contact portion 16 may be formed of a hard portion and a double molding by using a soft material such as an elastomer or a rubber-based resin inside the annular portion 11 formed of a hard thermoplastic resin. . By forming in this way, revolution of the annular part 11 with respect to the screw cap 20 can be suppressed.

In addition, if the thickness of the annular portion 11 is too thick, the curvature is deteriorated and the size correspondence is deteriorated. If the annular portion 11 is too thin, the strength supporting the opening / closing auxiliary portion 14 is insufficient. Form to thickness. For example, when hard thermoplastic resins, such as polyethylene, a polypropylene, and polyamide, are used, average thickness can be designed about 0.5-3.0 mm.

In the vicinity of the upper end of the inner circumferential surface of the annular portion 11, a press-contact portion 17 is provided which protrudes in a rib shape inward from the inner circumferential surface of the annular portion 11. Here, in this embodiment, as shown in FIG. 3, the press contact part 17 is formed in six places at equal intervals in the vicinity of the upper end of the inner peripheral surface of the annular part 11, and the press contact part 17 has the arrow in FIG. 2B. As shown, it is configured to press the upper portion of the closed portion 22 side of the screw cap 20 in the center direction.

The fitting stop 12 is for preventing the screw cap opening and closing mechanism 10 from being pushed too far when the screw cap opening and closing mechanism 10 is pushed downward from the top of the screw cap 20. The fitting stop 12 is formed in a flat ring shape corresponding to the upper end of the annular portion 11. When mounting the screw cap opening and closing aid (10) to the screw cap 20, the fitting stop 12 is provided to abut along the circumference of the upper surface of the closing portion 22 of the screw cap 20, shown in FIG. As described above, in the circular hole 18 in the center of the fitting stop 12, the intaglio or printing 28, etc., on the upper surface of the closure 22 of the screw cap 20 may be recognized externally. It is composed.

The connecting portion 13 is for connecting the annular portion 11 and the opening / closing auxiliary portion 14 in the form of a hinge, and is provided on a portion of the outer circumferential surface of the annular portion 11 and is a hinge-shaped portion having one end connected from the upper end to the lower end. And, the other end of the connecting portion 13 is connected to the opening and closing assistant (14).

As shown in FIG. 3, the opening / closing assistance part 14 amplifies and transmits a rotational force for opening and closing the screw cap 20 applied from the outside to the screw cap 20. The structure of the opening / closing auxiliary part 14 is a part formed in the strip shape of thin thickness in which one end is connected to the connection part 13, and the other end becomes a free end, and it uses in a lever shape. The strip-shaped portion is formed to have a height and a suitable length substantially similar to the height of the annular portion 11 and is located along the outer circumferential surface of the annular portion 11, that is, along the outer circumferential surface of the cylindrical portion 21 of the screw cap 20. It is formed into an arc shape which can be positioned. In the present embodiment, the length of the opening / closing auxiliary part 14 is about 1/2 of the circumference of the annular part 11, but the length is not limited thereto. However, in the case of forming less than 1/2 of the circumferential length of the annular portion 11, the size can be reduced when not in use, and when the length is too long, the required strength is increased and when the length is too short, the opening and closing force can be sufficiently amplified. There is no suitable length.

The opening / closing aid 14 is located close to the outer circumferential surface of the annular portion 11 as shown in FIG. 3A when the screw cap opening / closing aid 10 is not in use or when closing, and is shown in FIG. 3B during the opening operation. As described above, the free end is rotated to the left with the connecting portion 13 as an axis to be spaced apart from the outer circumferential surface of the annular portion 11.

In the closing operation, as shown in FIG. 4A, the distance from the rotational center O of the screw cap 20 to the near position P1 of the connecting portion 13, that is, the outer radius of the annular portion 11 is r, and the near position P1. When the distance to the tip P2 of the rotary stop 15 provided radially outward in the direction d, the force when rotating the screw cap 20 to the right by pressing only the outer peripheral surface of the annular portion 11 as f The moment when the screw cap 20 is rotated to the right by pressing only the outer circumferential surface of the annular portion 11 can be simply expressed by f × r, and by pressing the tip P2 of the rotation stop 15 with the same force f, the screw Since the moment n when the cap 20 is rotated to the right is expressed as n = f × (r + d) = f × r + f × d, the moment n is removed as compared with the case where the annular portion 11 is removed and rotated. The moment is increased by f × d.

That is, the lower limit force that can remove the annular portion 11 to rotate the screw cap 20 to the right, g, the lower limit force that can be rotated to the right by pressing the tip P2 of the rotation stop 15. Becomes gr / (r + d) and rotates to the right with a force of 1 / (1 + d / r), i.e., closes the screw cap, compared to the case where the annular portion 11 is removed and rotated to the right. .

On the contrary, in the opening operation, as shown in FIG. 4B, the opening and closing auxiliary part 14 is rotated to the left until the rotation stop part 15 abuts against the outer circumferential surface of the annular part 11 with the connecting part 13 as the axis. And the free end of the opening and closing auxiliary part 14 is spaced apart, and the free end is positioned at the point P3 on the extension line of the line connecting the near position P1 of the connecting part 13 to the center O of the screw cap 20. ) To form a large diameter portion that rotates integrally with. Here, the distance r 'from the center O to the point P3 is approximately 3r since the base end P1 of the opening / closing auxiliary part 14 to the tip part P3 are substantially similar to the diameter of the annular part 11.

Therefore, when the rotational force at the time of removing the annular part 11 and rotating the screw cap 20 to the left is F, the moment N is represented by N = F × r, and the tip P3 of the opening / closing auxiliary part 14 is pressed. The moment when the screw cap 20 is rotated to the left by the same force F is F × 3r = 3N. That is, in this case, the screw cap 20 may be opened with a force of 1/3 compared to the case where the annular portion 11 is removed to rotate the screw cap 20 to the left.

In addition, when the screw cap opening and closing assistive device 10 is constituted as described above, although the rotational force required for the opening operation, in particular, the opening operation is larger than that of the original closing operation, It is effective because it is configured to obtain. In addition, the present embodiment describes an example in which the screw cap 20 and the screw cap auxiliary mechanism 10 are formed as separate objects, but the connection portion 13 is formed on the outer circumferential surface of the tubular portion 21 of the screw cap 20. It is also possible to integrally form and connect the opening and closing auxiliary portion 14 to the other end of the connecting portion 13, through which the screw cap opening and closing aid 10 is integrally mounted with the screw cap 20 through the annular portion (11). .

Example  2

Next, a second embodiment of a modified embodiment of the screw cap opening and closing aid of the present invention will be described in detail with reference to FIGS. 5 and 6. Here, description of the same configuration as in Embodiment 1 is omitted. In addition, the screw cap opening and closing aid 110 of the present embodiment is similar to the screw cap opening and closing aid 10 of the first embodiment, the screw cap opening and closing aid 110 and the screw cap 120 is made of a separate object.

The screw cap opening and closing aid 110 according to the present embodiment is made of a polypropylene material, and as shown in FIGS. 5 and 6, an annular shape surrounding the outer circumferential surface of the tubular portion 21 of the screw cap 20. Portion 111, a substantially disc-shaped fitting stop 112 formed integrally on the upper end of the annular portion 111, and the connecting portion 113 that serves as a hinge shape integrally formed on the outer peripheral surface of the annular portion 111 And 113, opening and closing aids 114 and 114 formed integrally with the connection parts 113 and 113, and rotation stop parts 115 and 115 integrally formed with the opening and closing aids 114 and 114, respectively. .

The annular portion 111 is formed in a substantially cylindrical shape, the height is formed almost similar to the height of the cylinder portion 21 of the screw cap 20, the inner diameter and the outer diameter of the cylinder portion 21 of the screw cap 20 It is formed almost similarly. However, since the outer diameter of the cylindrical portion 21 of the screw cap 20 is not constant, the inner diameter of the annular portion 111 is formed to the average outer diameter of the cylindrical portion 21, and the inner peripheral surface of the annular portion 111 is the contact portion. It is comprised so that it may contact with the said outer peripheral surface so that the outer peripheral surface of the cylindrical part 21 of the screw cap 20 may not be pressed as shown (not shown). On the upper end portion of the inner circumferential surface of the annular portion 111, a press contact portion (not shown) protruded in a rib shape inward from the inner circumferential surface of the annular portion 111 is formed. Here, in this embodiment, the pressure contact portion is formed at six places at equal intervals from the upper end of the inner circumferential surface of the annular portion 111 is configured to press the closed portion 22 side of the screw cap 20 toward the center direction.

The fitting stop 112 is for preventing the screw cap opening / closing aid 110 from being pushed too far when the screw cap opening and closing device 110 is pushed into the screw cap 20 from the upper direction to the lower direction. The fitting stop 112 is formed in a substantially disc shape at the upper end of the annular portion 111 to close the entire upper portion of the annular portion. When mounting the screw cap opening and closing aid 110 on the screw cap 20, the lower surface of the fitting stop 112 is configured to abut along the upper surface of the closing portion 22 of the screw cap 20.

The connecting portions 113 and 113 are for connecting the annular portion 111 and the opening and closing auxiliary portions 114 and 114 in the form of a hinge, and a part of the outer circumferential surface of the annular portion 111 and the diameter position from the upper end to the lower end, respectively. The hinge shape is connected to the other end and the other ends of the connecting parts 113 and 113 are connected to the opening and closing auxiliary parts 114 and 114, respectively.

The opening and closing aids 114 and 114 have a lever shape for amplifying and transmitting a rotational force for opening and closing the screw cap 20 applied from the outside to the screw cap 20. The opening and closing assistants 114 and 114 are thin strip-shaped portions whose one ends are respectively connected to the connecting portions 113 and 113, and the other ends thereof are free ends. The strip-shaped portion is formed to have a height and a suitable length substantially similar to the height of the annular portion 111, and is formed in an arc shape that can be located along the outer circumferential surface of the annular portion 111. In the present embodiment, the lengths of the opening and closing auxiliary parts 114 and 114 are each about 1/4 of the circumference of the annular part 111.

The opening / closing aids 114 and 114 are located close to the outer circumferential surface of the annular portion 111 as shown in FIG. 5A when the screw cap opening / closing aid 110 is not in use or during operation, and is shown in FIG. As described above, the free ends are rotated to the left with the connecting parts 113 and 113 as the axes to be spaced apart from the outer circumferential surface of the annular part 111.

In addition, at the time of closing operation, as shown in FIG. 6A, the outer radius of the annular part 111 is r0 and the distance to the tip of each rotation stop part 115, 115 in the center O of the screw cap 20 is shown. By forming r1> r0, the screw cap can be rotated to the right more easily than when the screw cap 20 is rotated to the right by pressing only the outer circumferential surface of the annular portion 111.

On the contrary, at the time of the opening operation, as shown in FIG. 6B, the rotation stop parts 115 and 115 of the annular part 111 are connected to the opening and closing auxiliary parts 114 and 114 with the connecting parts 113 and 113 as the axes. It rotates to the left until it comes in contact with the outer circumferential surface to separate the free ends of the opening and closing auxiliary parts (114, 114), and connects the free ends to the adjacent positions of the connecting parts (113, 113) at the center O of the screw cap 20 Positioning on the extension line forms a large diameter portion that rotates integrally with the screw cap 20.

At this time, the distance from the center O to each of the opening and closing auxiliary parts 114 and 114 is formed as r2> r1> r0 so that only the outer peripheral surface of the annular part 111 is pressed to make the screw cap 20 rotate more comfortably than when the screw cap 20 is rotated to the left. The cap can be rotated to the left.

In addition, as described above, when the screw cap opening / closing aid 110 is configured, the rotational force required for the opening operation, in particular, the opening operation is larger than that of the original closing operation, but the structural opening operation of the opening / closing auxiliary parts 114 and 114 is performed. Moment larger than the time can be obtained, and although the use is complicated compared with the case where only one opening / closing auxiliary part 14 is formed, strength stability and rotational stability can be improved. Of course, it is also possible to mount three or more opening / closing auxiliary parts. In addition, in the present embodiment, the screw cap 20 and the screw cap auxiliary mechanism 110 is described as an example made of a separate object, the connection portion 113 on the outer peripheral surface of the cylindrical portion 21 of the screw cap 20 It is formed integrally to connect the opening and closing auxiliary part 114 to the other end of the connecting portion 113, and through the annular portion 111 can be integrally mounted to the screw cap opening and closing aid 110 to the screw cap (20).

Example  3

Next, a third embodiment of the modified embodiment of the screw cap opening and closing aid 210 of the present invention will be described in detail with reference to FIGS. 7 to 9. Here, descriptions of the same configurations as those of the first embodiment and the second embodiment are omitted. In addition, the screw cap opening and closing aid 210 according to the present embodiment is formed integrally with the screw cap opening and closing aids and the screw cap.

Screw cap opening and closing aid 210 according to the present embodiment is made of a polypropylene material, as shown in Figure 7a and 7b, the screw cap 220 is integrally formed on the outer surface of the screw cap 220 do. The screw cap part 220 is provided with the substantially cylindrical cylinder part 221 and the substantially disc shaped closure part 222 which closes the upper end of the said cylinder part 221. As shown in FIG. On the inner circumferential surface of the tubular portion 221, a string-shaped bite portion 224 is formed to form a continuous spiral. The lower surface of the closing part 222 is provided with a sealing part 225 for improving the sealing property. Grooves 211 recessed in an inverted R shape are formed around the upper surface of the closing part 222, and the opening and closing auxiliary part 214 formed in a ring shape is detachable. It is configured to be provided as a wearable.

The opening / closing auxiliary part 214 may be mounted on the screw cap part 220 through the connecting part 213. One end of the connection portion 213 is integrally formed with one lower end of the groove portion 211 of the screw cap 220, and the other end is a hinge-shaped portion formed integrally with the opening and closing auxiliary portion 214. The opening and closing assistant 214 has a circular cross section and is formed in a circular ring shape as a whole, and the tip of the connecting portion 213 is integrally formed at one end.

When the screw cap opening / closing aid 210 is not in use, the opening / closing aid 214 is inserted into the groove portion 211 of the screw cap portion 220 and positioned close to the screw cap portion 220 as shown in FIG. 7. At the time of opening / closing operation, as shown in FIG. 8, the opening / closing auxiliary part 214 is pulled from the groove part 211 and rotated about 180 ° in the straight end surface of the circle with the connecting part 213 as the axis, and the screw cap part ( Spaced at 220).

Here, the inner diameter of the opening / closing assistance part 214 forming a ring shape is similar to the inner diameter of the groove part 211 formed over the entirety of the circumference of the closure part 222, and the outer diameter phi 1 of the opening / closing assistance part 214 is a screw cap part 220. It is formed to a degree similar to the outer diameter d of the tubular portion 221 of (). Therefore, when the opening / closing auxiliary part 214 is pulled 180 degrees with the connecting part 213 as an axis, the distance from the center position of the opening / closing auxiliary part 214 to the center of the closing part 222 is the cylinder part 221. Similar to the outer diameter d of, the radius of rotation of the screw cap 220 is increased by the outer diameter φ1 of the opening and closing auxiliary portion 214 is formed a large diameter portion that rotates integrally with the screw cap 220.

Here, the opening and closing auxiliary portion 214 is formed in a ring shape, it is possible to pass the finger or the like through the ring-shaped opening and closing auxiliary portion 214, to transport the container in the state of passing the finger or to open and close the screw cap 220 can do.

In addition, although the groove portion 211 is formed along the upper circumference of the closing portion 222 in the above description, the groove portion 211 is not necessarily formed along the upper portion of the closing portion 222 in this embodiment, For example, as shown in Fig. 9, one end is caught around the upper end of the closing portion 222a or 222b, and the other end is approximately elliptical hanging on the lower end of the tubular portion 221a or 221b corresponding to the diameter position of the one end. It is also possible to form the groove shape of. In this case, the cylindrical part 221a or 221b is formed in the groove part 221a or 221b which cut | disconnected the upper half part inclined over the lower part part corresponding to the said diameter position in the upper part part.

In addition, as shown in FIG. 9A, one end is integrally formed at the lower end of the groove 221a and one end of the ring opening / closing auxiliary part 214a is formed in an ellipse shape as shown in FIG. 9A. It can be formed integrally. Alternatively, as illustrated in FIG. 9B, one end is integrally formed at the lower end of the groove 221b and one end of the ring opening / closing auxiliary part 214b is formed in an ellipse shape as shown in FIG. 9B. It can be formed integrally. In this case, when the opening / closing auxiliary parts 214a and 214b become elliptical as a whole, and the diameter of the closing parts 222a and 222b is d, and the outer diameter of the long diameter part of the elliptical is φ2, φ2> D = φ1, A larger diameter portion may be formed than the case in which the screw cap portion 220a or 220b is integrally rotated.

Example  4

Next, a fourth embodiment which is one modified embodiment of the screw cap opening and closing aid 310 of the present invention will be described in detail with reference to FIGS. 10 to 13. Here, the description about the same structure is abbreviate | omitted about any one of Embodiment 1-3. In addition, the screw cap opening and closing aid 310 according to the present embodiment is formed integrally with the screw cap opening and closing aids and the screw cap.

Screw cap opening and closing aid 310 according to this embodiment is made of a polypropylene material, as shown in Figure 10a, 10b, is formed integrally with the screw cap portion 320 on the outer surface of the screw cap portion 320 . The screw cap portion 320 includes a substantially cylindrical cylindrical portion 321 and a substantially disc-shaped closing portion 322 for closing the upper end of the cylindrical portion 321. Connecting portions 313 and 313 formed on the outer circumferential surface of the closing portion 322 at two locations spaced apart at equal intervals in the horizontal direction at appropriate intermediate positions in the height direction, each end integrally with the cylindrical portion 321. ) Is provided. The other ends of the connection parts 313 and 313 are formed in an overall Y shape, and the opening and closing auxiliary part 314 having two upper ends of the approximately Y shape is integrally provided.

The opening / closing auxiliary part 314 is provided at an appropriate intermediate position in the height direction of the screw cap part 320 through the connecting parts 313 and 313. The connecting parts 313 and 313 are hinge parts each formed at one end thereof integrally with the outer circumferential surface of the screw cap part 320 and the other end integrally formed with the opening / closing auxiliary part 314. The opening and closing auxiliary part 314 is formed in a generally Y-shape so that the two upper ends are connected to the connecting parts 313 and 313, respectively, and the upper half is located closely to the screw cap 320 and the container opening 331, and the lower half is connected to the container ( 330 can be mounted so as to be closely positioned. An ellipse hole 319 penetrating inside and outside is formed at a lower end portion of the opening / closing auxiliary part 314 and is formed in a ring shape. The length from the top to the bottom of the opening and closing assistant 314 is formed about 2 to 3 times the diameter of the closing part 322. The shape between the two upper ends of the opening / closing assistance part 314 is formed in circular arc shape along the arc between two connection parts 313 and 313 on the cylinder part 321. As shown in FIG.

When the screw cap opening and closing aid 310 is not in use, the opening and closing aid 314 is located close to the screw cap 320, the container opening 331, and the container 330 as shown in FIG. 10. As shown in FIG. 11, the opening and closing auxiliary part 314 is pulled out of the container 330, the container opening part 331, and the screw cap part 320, and rotated about 90 ° in the vertical plane with the connecting part 313 as the axis. A large diameter part which is spaced apart from the screw cap part 320 and rotates integrally with the screw cap part 320 is formed.

Here, the circular arc-shaped part between the two upper ends of the opening / closing assistance part 314 is located in direct contact with the outer peripheral surface of the cylinder part 321 of the screw cap part 320, and becomes a state suitable for opening and closing the screw cap part 320. As shown in FIG. Here, since the ring-shaped ellipse hole 319 is formed at the free end of the opening / closing auxiliary part 314, it is possible to pass a finger or the like through the elliptical hole 319 of the ring-shaped opening / closing auxiliary part 314. The container 330 may be transported or the screw cap 320 may be opened or closed in the passed state.

In addition, although the opening / closing auxiliary | assistant part 314 is formed in a suitable intermediate position in the height direction of the cylinder part 321 in the above, the opening / closing auxiliary part 314 which concerns on this embodiment must necessarily be located in the intermediate position in the height direction of the cylinder part 321. It is not limited to what is formed, For example, as shown in FIG. 12, it opens and closes to the other end of the said connection part 313a through the connection part 313a by which the end was integrally formed in the lower end of the cylinder part 321a. One end of the auxiliary portion 314a may be integrally formed. In this case, the opening / closing auxiliary part 314a hangs downward from the lower end of the cylindrical part 321a of the screw cap part 320a when not in use, and as shown in FIGS. 12A and 12B, the container opening part 331 and the container 330. Close to).

At the time of opening and closing operation, as shown in FIGS. 13A and 13B, the opening / closing auxiliary part 314a is pulled out of the container 330 and the container opening part 331, and approximately 90 ° in the vertical plane with the connecting part 313 as the axis. The large diameter part which rotates and rotates integrally with the screw cap part 320a is formed.

Example  5

Next, a fifth embodiment of the modified embodiment of the screw cap opening and closing aid 410 of the present invention will be described in detail with reference to FIGS. 14 to 16. Here, the description about the same structure about any one of Embodiments 1-4 is abbreviate | omitted. In addition, the screw cap opening and closing aid 410 according to the present embodiment is a screw cap opening and closing aid 410 and the screw cap 20 is made of a separate object.

Screw cap opening and closing aid 410 according to the present embodiment is made of a polypropylene material, as shown in Figure 14 and 15, the annular portion surrounding the outer peripheral surface of the cylindrical portion 21 of the screw cap 20 411, a fitting stop 412 integrally formed at the upper end of the annular portion 411, a connecting portion 413 serving as a hinge shape integrally formed on the outer circumferential surface of the annular portion 411, and the connecting portion Rotation formed in the opening and closing assistant 414 formed integrally with the 413, the rotation stop 415 formed integrally with the opening and closing assistant 414, and the annular portion 411 corresponding to the rotation stop 415. A stop latch 433 is provided.

The annular portion 411 has a substantially cylindrical shape, the height is formed to be similar to the height of the cylindrical portion 21 of the screw cap 20, the inner diameter is slightly smaller than the outer diameter of the cylindrical portion 21 of the screw cap 20 It is largely formed. However, the inner diameter of the annular portion 411 is slightly larger than the average outer diameter of the cylindrical portion 21 because the outer diameter of the cylindrical portion 21 of the screw cap 20 is not constant. At any position of the inner circumferential surface of the annular portion 411, a longitudinal rib-shaped contact portion 416 is engaged with and engaged with the longitudinal groove provided on the outer circumferential surface of the cylindrical portion 21 of the screw cap 20. do.

As shown in FIG. 15B, the contact portion 416 extends in the form of a series of mountain strings protruding from the upper end of the inner circumferential surface of the annular portion 411 to the lower end thereof, and the upper portion of the contact portion 416. The height is increased to form a pressure contact portion 417, it is configured to be in pressure contact with the upper portion of the outer peripheral surface of the screw cap. In addition, the ridge shape of the contact portion 416 formed in the ridge shape, as shown in Figure 14b, the cross-section of the ridge is formed in an isosceles triangle shape, to form an inclined shape, the screw cap 20 is opened During operation, the steep slope 416a abuts against the longitudinal groove portion (not shown) formed on the outer circumferential surface of the screw cap 20, and during the closing operation, the gentle slope 416b is formed to abut the longitudinal groove portion. The annular portion 411 is configured to revolve with respect to the screw cap 20 at a smaller rotational force during the closing operation. By such a configuration, the annular portion 411 revolves when the screw cap 20 is closed by adding a predetermined rotational force, and the revolving portion of the annular portion 411 with respect to the screw cap 20 is prevented during the opening operation. can do. In addition, since the pressure contact portion 417 is formed in the longitudinal direction, the frictional resistance increases to prevent the annular portion 411 from being separated from the screw cap 20. In addition, the contact portion 416 may be formed in a mountain range shape in which a plurality of mountain-shaped row portions are disposed in the circumferential direction at three or more positions on the inner circumferential surface of the annular portion 411.

The fitting stop 412 is for preventing the screw cap opening / closing aid 410 from being pushed too far when the screw cap opening / closing aid 410 is pushed into the screw cap 20 from the top to the bottom. The fitting stop 412 is formed in a substantially flat ring shape on the upper end of the annular portion 411. When attaching the screw cap opening and closing aid 410 to the screw cap 20, the fitting stop 412 abuts along the upper circumference of the closure 22 of the screw cap 20, the fitting stop 412 In the center of the circular hole 418, the intaglio or printing such as letters or patterns disposed on the upper surface of the closed portion 422 of the screw cap 20 is configured to be seen from the outside.

A hooking portion 434 protruding outward is provided at a proper position of the annular portion 411, and the hook portion 435 formed in the opening and closing auxiliary portion 414 when the opening and closing auxiliary portion 414 approaches the annular portion 411 is provided. Are engaged so as to be able to be latched from the outside, and the opening / closing auxiliary part 414 and the annular part 411 can be held in an engaged state. Of course, during the opening operation of the screw cap 20 is configured to easily release the engagement state to operate the opening and closing assistant 414.

In addition, as shown in FIGS. 14 and 16, a rotation stop catching portion 433 protruding outward is provided in the vicinity where the connecting portion 413 of the annular portion 411 is formed to open and close the auxiliary portion 414. It can also be configured to limit the rotation angle accompanying the opening operation of.

The connection part 413 is for connecting the annular part 411 and the opening / closing auxiliary part 414 in the form of a hinge, and is provided at a suitable position of the outer circumferential surface of the annular part 411, and one end is connected from the upper end to the lower end. The other end is connected to the opening and closing assistant 414 in the form of a hinge. The connecting portion 413 has a length and a thickness from one end to the other end of 0.5 mm or more, respectively. The connecting portion 413 has a substantially band shape as a whole, and the two lines in a planar shape formed by the inner and outer surfaces of the band shape are configured to be substantially hyperbolic. By forming the connecting portion 413 in this manner, the intermediate position in the longitudinal direction can be made thin, thereby providing durability against bending, and increasing the vicinity of both ends to ensure strength.

The opening and closing assistant 414 has a lever shape for amplifying and transmitting a rotational force for opening and closing the screw cap 20 applied from the outside to the screw cap 20. The structure of the opening / closing assistance part 414 is a plate-shaped plate part whose one end is connected to the connection part 413 and the other end becomes a free end. The plate portion is formed at a height slightly lower than the height of the annular portion 411, as shown in Fig. 15A. The opening / closing assistant 414 has a curved portion 436 which is formed to have a length of about 1/4 of the circumferential length of the annular portion 411 and can be located along the outer circumferential surface of the annular portion 411. The handle portion 437 is curved in a direction that can be bent from the outer circumferential surface of the annular portion 411, and is generally formed in a substantially bow shape.

The lower end portion near the free end of the opening / closing auxiliary portion 414 has a hook portion 435 formed in a concave shape so that the locking portion 434 protruding from the annular portion 411 can be engaged. 435 and the locking portion 434 is configured to be removable from each other. In addition, although not shown, a small hole penetrating the opening / closing auxiliary part 414 may be provided to insert a strap or the like.

The opening / closing assistance part 414 has the rotation stop part 415 which limits the rotation angle of the opening / closing assistance part 414 which makes the connection part 413 the support point near the base end part to which the connection part 413 was connected, and extends in the radial direction from the said base end part. 16, the rotation stop part 415 and the rotation stop part 433 provided in the annular part contact | connect each other in the maximum opening position.

* When the screw cap opening and closing aid 410 configured as described above is not in use, the opening and closing auxiliary part 414 is brought into close contact with the annular part 411 to engage the engaging part 434 by the hook part 435. In the use, the hook part 435 is released from the locking part 434 to release the engagement state, and the opening and closing auxiliary part 414 is rotated to form a large diameter part.

In addition, the present embodiment, the screw cap 20 has been described as an example made of a separate object from the screw cap auxiliary mechanism 410, the connection portion 413 to the outer peripheral surface of the cylindrical portion 21 of the screw cap 20 It is formed integrally and connects the opening and closing auxiliary portion 414 to the other end of the connecting portion 413 can be integrally mounted to the screw cap opening and closing aid 410 to the screw cap 20 through the annular portion 411.

Example  6

Next, a sixth embodiment of a modified embodiment of the screw cap opening and closing aid 510 of the present invention will be described in detail with reference to FIG. Here, the description of the same configuration as that of any one of Embodiments 1 to 5 will be omitted. In addition, the screw cap opening and closing aid 510 of the present embodiment is a screw cap opening and closing aid 510 similar to the screw cap opening and closing aid 10 of the first embodiment, and the screw cap 520 is a separate object. Is done.

The screw cap opening and closing aid 510 according to the present embodiment is made of a polypropylene material, an annular portion 511 surrounding the outer circumferential surface of the tubular portion 21 of the screw cap 20, and the annular portion 511. A substantially disc-shaped fitting stop 512 integrally formed at an upper end thereof, a connecting portion 513 serving as a hinge shape integrally formed on an outer circumferential surface of the annular portion 511, and integrally formed at the connecting portion 513. Opening / closing auxiliary part 514, a rotary stop 515 integrally formed with the opening / closing auxiliary part 514, and a cover-type connecting part connected between the tip of the rotary stop 515 and an appropriate position of the annular part 511. 538.

The fitting stop 512 is to prevent the push too much when the screw cap opening and closing aid 510 is pushed from the top to the bottom with respect to the screw cap 20. The fitting stop 512 is formed in a substantially disc shape at the upper end of the annular portion 511 to close almost the entire upper portion of the annular portion 511. A plurality of through holes 518 penetrating through the inside and the outside of the fitting stop part 512 are formed at predetermined intervals around the fitting stop part 512 forming a substantially disk shape, and between the through holes 518. The fitting stop 512 formed at the upper portion has a bridge portion 518a connecting between the upper ends of the annular portion 511. The screw cap opening / closing assistance mechanism 510 of this embodiment includes a fitting stop portion 512 covering the upper portion of the annular portion 511, and forms a plurality of crosslinked portions 518a to have an aesthetic appearance while providing an annular portion. It is possible to cope with the unevenness of the outer diameter or the outer shape of the screw cap 20 by having a bendability to the 511.

The opening and closing assistant 514 has a lever shape formed in the shape of a rod to amplify and transmit the rotational force for opening and closing the screw cap 20 applied from the outside to the screw cap 20. The opening / closing auxiliary part 514 is provided with a handle portion 537 near the free end, and is provided with a temporary cross-linking portion 539 connected to the annular portion 511 in the vicinity of the proximal end of the handle portion 537. The temporary cross-linking portion 539 is a portion connecting the opening / closing auxiliary portion 514 and the annular portion 511, and is formed to be easily ruptured by adding a predetermined force or more, so that the temporary cross-linking portion 539 can be understood to be in an unoperated state. In order to stably couple the opening and closing assisting part 514 to the annular part 511 at the time of unmanipulation.

As shown in FIG. 17, the rotation stop part 515 extended in the radial direction is formed in the base end part of the opening / closing assistance part 514. As shown in FIG. The tip of the rotation stop 515 is provided with one end of the cover-type connecting portion 538 having two hinge-shaped joints 538a and 538b. The cover type connecting portion 538 is a leaf spring portion 538c which is provided in a shape of a relatively long shape in a substantially tangential direction at the place of the annular portion 511, and hinges to the leaf spring portion 538c. It is provided with a relatively short magnetic shape relay portion 538d connected in the form and the relay portion 538d is connected to the rotation stop portion 515 in the form of a hinge.

In the case of using the screw cap opening and closing aid 510 of the present embodiment, first, when the first operation, the pressing portion 537 is added to the pressing portion of the appropriate size in the opening operation direction and the opening and closing auxiliary portion 514 is connected to the annular portion 511. The temporary temporary cross section 539 is ruptured. The free end of the opening / closing auxiliary part 514 is rotated by using the connection part 513 as a supporting point. Here, when the rotational position of the rotation stop part 515 exceeds the dead point, the cover type connection part 538 automatically rotates to the maximum rotational position to form a large diameter part. Of course, when the opening / closing auxiliary part 514 approaches the annular part 511 until it exceeds the dead point, the opening / closing auxiliary part 514 automatically returns to an original position. In addition, the screw cap opening and closing aid 510 according to the present embodiment, by providing a cover type connecting portion 538 to prevent the fingers, hands, skin, etc. between the annular 511 and the rotary stop 515 to be pinched. can do.

As described above, the screw cap opening and closing aid according to the embodiments of the present invention, assists the opening and closing of the screw cap in the screw cap mechanism, and the screw cap opening and closing assist mechanism to be mounted separately from the screw cap or integrally Opening and closing part which is connected to the connecting part and the connecting part which is integrally rotated with the screw cap, and closes to the outer surface of the screw cap when it is unopened and separated from the screw cap when opening and closing to form a large diameter part which rotates integrally with the screw cap. It is configured to include, and configured to reduce the rotational force required for the relative rotation between the container opening and the screw cap during the opening and closing operation of the screw cap, various forms for the range that does not deviate from the technical spirit of the present invention Can be carried out.

10: screw cap opening and closing mechanism 11: annular portion
12: fitting stop 13: connection
14: opening and closing assistant 15: rotation stop
16: contact 17: pressure contact
18: round hole 20: screw cap
21: tube part 22: closed part
23: tamper-evidence ring 24: bite
25: sealing part 26: the opening confirmation ring body
27: missing stopper 28: engraved or printed character or pattern
30 container 31 container opening
32: engaging portion 110: screw cap opening and closing mechanism
111: annular portion 112: fitting stop
113: connecting portion 114: opening and closing assistant
115: rotation stop 210: screw cap opening and closing mechanism
211: groove portion 211a: groove portion
211b: groove portion 213: connecting portion
213a: connection part 213b: connection part
214: opening and closing assistant 214a: opening and closing assistant
214b: opening and closing auxiliary part 220: screw cap part
220a: screw cap portion 220b: screw cap portion
221: tube portion 221a: tube portion
221b: tube part 222: closed part
222a: closure 222b: closure
224: gripping portion 225: sealing portion
310: screw cap opening and closing aid 313: connecting portion
313a: connecting portion 314: opening and closing portion
314a: opening and closing aid 319: elliptical hole
320: screw cap portion 320a: screw cap portion
321: tube portion 321a: tube portion
322: closure 330: container
331: container opening 410: screw cap opening and closing mechanism
411: annular portion 412: fitting stop
413: connection portion 414: opening and closing assistant
415: rotation stop 416: contact
416a: steep slope 416b: hard slope
417: pressure contact portion 433: rotation locking stop
434: hook portion 435: hook portion
436: curved portion 437: handle portion
510: screw cap opening and closing aids 511: annular portion
512: fitting stop 513: connection
514: opening and closing assistant 515: rotation stop
518: through hole 518a: bridge portion
537: handle portion 538: cover type connection
538a: articulation 538b: articulation
538c: leaf spring 538d: relay
539: temporary provisional
r: outer radius of the annular portion
r ': Distance from center O to point P3
d: distance from the closest position P1 of the connecting portion to the tip P2 of the rotary stop located radially outward;
n: moment
P1: Location near the connection
P2: tip of rotating stop
P3: Point on the extension line from the center O to the vicinity of the connection P1
r0: outer radius of the annular portion
r1: Distance from center O to the tip of each rotating stop
r2: distance from center O to each opening and closing part
D: outer diameter of the cylindrical part
φ1: outer diameter of the opening and closing part
φ2: Oval long diameter part outer diameter of the opening and closing auxiliary part

Claims (1)

In the screw cap opening and closing mechanism,
Screw cap opening and closing mechanism characterized in that it comprises a rotatable connection portion and the opening and closing auxiliary unit integrally with the screw cap.

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