JP2008150070A - Structure of container cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of remarkably reducing a breakage phenomenon of hinge members of a container cap by arranging a first hinge member and a second hinge member at their upper part and lower part to make a double-hinge member. <P>SOLUTION: A container cap 18 comprises a container cap body 19, an opening part 20, a lid 21, a first hinge member 22 and a second hinge member 23. A hinge member C is constituted by the first hinge member 22 and the second hinge member 23. The first hinge member 22 is arranged at the upper side of the cap, and the second hinge member 23 at the lower side of the cap. The container cap 18 is used under a state in which it is connected and coupled to the container body or a storing bag etc. at a part of the outer periphery of the container cap body 19. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

According to the present invention, since the hinge member is a double hinge member in which the first hinge member and the second hinge member are vertically arranged, the breaking phenomenon of the hinge member is remarkably reduced and the thickness and thickness of the second hinge member are reduced. It is related with the structure of the cap of the container which can make spring elasticity changeable by adjusting length.

Conventionally, as a first example of the structure of this type of container cap, there is a technique disclosed in Japanese Patent Laid-Open No. 2001-151259 shown in FIG. Explaining this, the upper lid 1 and the lower lid 2 are integrally connected by a rotatable hinge 3, and the upper lid 1 and the lower lid 2 are connected to each other and a strap 4 that causes a snap action when the upper lid 1 is opened and closed. Are arranged in parallel with the hinge 3, and at least one of the upper lid 1 and the lower lid 2 is a bend as a bend portion integrated with the hinge 3 via a pair of slits 5 and 5 formed with the hinge 3 interposed therebetween. A plate 6 is formed, and the bend plate 6 is deformed when the upper lid 1 is opened and closed so that the strap 4 passes through the rotational axis of the hinge 3.

In FIG. 5, a snap hinge cap 7 connects a cylindrical synthetic resin upper lid 1 and lower lid 2 together by a hinge 3, and causes a snap action between the upper lid 1 and the lower lid 2 when opening and closing. The strap 4 is provided. The snap hinge cap 7 puts a thumb in an operation recess (not shown) provided on the front surface of the lower lid 2 and jumps up an operation protrusion (not shown) provided on the front surface of the upper lid 1. It can be opened and closed to the open state. Then, by closing the upper lid 1 with respect to the lower lid 2, a plug projecting at the center of the rear surface of the upper lid 1 is inserted into the spout provided by bulging in the center of the top surface of the lower lid 2. Thus, the spout can be liquid-tightly sealed. In the figure, 3a is the axial center of the hinge 3, and 4a is a recess for housing the strap 4.

Further, as a second example of the structure of this kind of container cap, there is a technique disclosed in Japanese Patent Laid-Open No. 2001-180711 shown in FIG. Explaining this, the hinge 8 is composed of a pair of band-like portions 9 and 9 and outer connecting band portions 10 and 10. The pair of belt-like portions 9 and 9 has the lid 11 in an open state, the upper surface is substantially horizontal, and a bending groove 13 is formed at an intermediate position between the cap body 12 and the lid 11. The hinge 8 is opened and closed exclusively around the bent groove 13. The outer connecting band portions 10 and 10 are integrally connected to the outer sides of the pair of band-shaped portions 9 and 9 and are inclined downward and outward as a whole when the lid 11 is open. The outer edge 10A is curved horizontally or slightly upward in a side view. Further, most of the outer connecting band portions 10 and 10 are formed thinner than the band-shaped portions 9 and 9 and have a substantially trapezoidal shape. And the thick part is integrally formed along the back surface of the site | part which contact | connects the outer wall of the cap main body 12 and the lid | cover 11 of the outer connection band parts 10 and 10. FIG.

Further, as a third example of the structure of the conventional container cap, there is a structure as shown in FIG. Describing this, 14 is a cap body, 15 is a lid that can be freely opened and closed, and 16 is an opening of the cap body 14. Reference numeral 17 denotes a hinge connected to the cap body 14 on the one hand and to the lid 15 on the other hand, a flat plate-like first hinge 17a at the center, and flat plate-like second hinges on both sides of the flat plate-like first hinge 17a. 17b and 17b.
The cap body 14 is provided with a flange 14a for fixing a container body, a storage bag, and the like on the lower side, and a cylindrical portion 14b is formed on the top. A stopper 14c is provided on the outer surface of the cylindrical portion 14b so as to protrude. When the lid 15 is closed to the opening 16, the lower edge of the lid 15 is fixed by the stopper 14c. Further, when the lid 15 is opened from the cap body 14, a notch 14d is formed in a part of the stopper 14c so that the user's finger contacts the lower edge of the lid 15.
Japanese Patent Laid-Open No. 2001-151259 Japanese Patent Laid-Open No. 2001-180711

In the first conventional example described above, the hinge for pivotally connecting the upper lid 1 and the lower lid 2 together is composed of only a single hinge 3 and provided on both sides of the hinge 3. The strap 4 is an auxiliary member for performing a snap action on the upper lid 1 and does not serve as a hinge. In order to freely rotate the upper lid 1 and the lower lid 2, it is necessary to allow a sufficient length for the strap 4. In order to open and close the upper lid 1 by a snap action, the upper lid 1 is opened and closed. It is necessary to generate a tensile stress on the strap 4. That is, there is a problem that the length of the strap 4 cannot be afforded, and the strap 4 breaks during long-term use.

In addition, since the hinge 3 and the strap 4 are arranged in the circumferential direction of the upper lid 1 and the lower lid 2, the hinge-related functional parts are provided in a wide area of the circumferential portion of the upper lid 1 and the lower lid 2. However, once the strap 4 is broken because the structure is complicated, the closing position of the upper lid 1 of the hinge 3 becomes unstable, making it difficult to open and close the upper lid 1 and making the closing impossible. Furthermore, in order for the snap action of the upper lid 1 to function effectively, it is necessary to make the pivot axis portion of the hinge 3 thin. For this reason, the pivot axis portion of the hinge 3 is easily broken. There was also a point.

Next, in the above-described second conventional example, there are a pair of belt-like portions 9, 9 and outer connecting band portions 10, 10 constituting the hinge 8, and the outer connecting band portions 10, 10 are a pair of belt-like portions. The portions 9 and 9 are substantially flush with each other and are integrally arranged on the outside thereof. Further, most of the outer connecting band portions 10 and 10 are formed thinner than the band-shaped portions 9 and 9. Therefore, when the lid 11 is opened and closed, the thin outer connecting band portions 10 and 10 are easily broken, and when one of the outer connecting band portions 10 and 10 is cracked, the lid is placed on the cracked side. Since the tensile stress due to the opening / closing operation of 11 concentrates, it progresses to breakage.

In the conventional cap structure of the container of the second example, when one of the outer connecting band portions 10 and 10 breaks, when the lid 11 is opened, the lid 11 is pulled toward the unbroken outer connecting band portion 10 and tilts. Therefore, when the lid 11 is closed, there is a problem that it is difficult to place the lid 11 in a predetermined position.

Further, in the above-described conventional third example, in order to facilitate the opening / closing operation of the lid 15 with respect to the cap body 14, the flat plate-shaped first hinge 17a and the flat plate-shaped second plate are located at substantially the same surface position. Hinges 17b and 17b are provided, and bending grooves are provided in the flat plate-like second hinges 17b and 17b. However, since the flat plate-like second hinges 17b and 17b are arranged on both sides of the flat plate-like first hinge 17a, the compressive stress is concentrated in the folding groove when the lid 15 is opened and closed. There is a problem in that it is difficult to cause a displacement force, the bending groove portion breaks, the lid 15 swings, and the lid 15 is closed to the opening 16 of the cap body 14.

The structure of the container cap according to the present invention has been invented to solve the above-mentioned problems of the prior art, and is composed of the following configurations and means.

According to the first aspect of the present invention, in the container cap comprising the container cap body and a lid that is opened and closed by a hinge member at the opening of the container cap body, the hinge member is connected to the first hinge member and the first cap member. Two hinge members are arranged on the top and bottom, and one of the first hinge member and the second hinge member is formed integrally with the cap body and the lid.

According to a second aspect of the present invention, in the configuration of the first aspect, the first hinge member has a notch groove in the width direction formed on the front surface or the back surface thereof.

According to a third aspect of the present invention, in the configuration of the first aspect, the second hinge member has a substantially curled cross section.

According to a fourth aspect of the present invention, in the configuration of the first aspect, the second hinge member has a thickness of a belt-like portion of the second hinge member as compared with a thickness of the notch groove of the first hinge member. It is characterized by being set thick.

According to a fifth aspect of the present invention, in the configuration according to the second aspect, the first hinge member has a front end and a rear end of the notch groove formed in a substantially V shape.

According to the invention of claim 6, in the cap of the container comprising the cap body of the container and a lid that is opened and closed by the hinge member at the opening of the cap body of the container, the hinge member is connected to the first hinge member and the first cap member. 2 hinge portions are arranged on the top and bottom, and one of the first hinge member and the second hinge member is integrally formed with the cap body and the lid, and is formed on the outer peripheral surface of the cap body of the container. Protruding stopper that is joined when closing the lower edge of the lid is integrally molded, a part of the projecting stopper is notched, and a handle is integrally molded on the periphery of the lid corresponding to the notch position. Features.

Since the cap structure of the container according to the present invention has the above configuration, the following effects are obtained.

That is, according to the first aspect of the present invention, in the cap of the container including the cap body of the container and the lid that is opened and closed by the hinge member at the opening of the cap body of the container, the hinge member is the first hinge member. And a second hinge part arranged on the top and bottom, and one or the other of the first hinge member and the second hinge member is formed integrally with the cap body and the lid. Provide the structure.
Since it is such a configuration, the hinge member is arranged on the top and bottom of the first hinge member and the second hinge member to form a double hinge member, thereby distributing stress at the time of opening and closing the lid, The breaking phenomenon of the hinge member can be significantly reduced. Even if one hinge member breaks, the other hinge member can perform the hinge function, and it is safe to use materials such as low density polyethylene, low density linear polyethylene (LLDPE), or polypropylene. Cap can be provided.

According to a second aspect of the present invention, there is provided the structure of the container cap according to the first aspect, wherein the first hinge member has a notch groove in the width direction formed on the front surface or the rear surface thereof.
With such a configuration, the lid rotates with the position of the notch groove as the center of rotation, so positioning is easy when closing the lid on the cap body of the container, and the opening and closing operation of the lid is smooth. There is an effect.

According to a third aspect of the present invention, there is provided the container cap structure according to the first aspect, wherein the second hinge member has a substantially curled cross section.
With such a configuration, the length side of the second hinge member can be set long, and the first hinge member is centered on the notch groove of the first hinge member when the lid is opened and closed. There is an effect that the lid can be rotated without interfering with the second hinge member. In addition, the second hinge member has a substantially curled cross section, and has a reaction action when the lid is opened and closed. When the lid is opened, the lid is always stopped at an intermediate position, so that the next lid can be easily closed. There is an effect that.

According to a fourth aspect of the present invention, the second hinge member is configured such that the thickness of the second hinge member is set to be larger than the thickness of the notch groove of the first hinge member. A container cap structure according to claim 1 is provided.
With this configuration, the internal stress of the second hinge member exceeds the internal stress of the first hinge member. Therefore, when the lid is opened, the internal stress of the first hinge member and the inside of the second hinge member It is possible to stop the lid at a position where the stress is balanced. Since the stress is distributed to the second hinge member by the thickness, there is an effect that the quality of the hinge function is improved without deteriorating the first hinge member.

According to a fifth aspect of the present invention, there is provided the structure of the container cap according to the second aspect, wherein the first hinge member has a front end and a rear end of the notch groove formed in a substantially V shape. To do.
Since it was set as such a structure, the width | variety of a 1st hinge member can be narrowed and there exists an effect that the opening / closing operation | movement of a lid | cover can be performed smoothly. Further, by narrowing the width of the first hinge member, it becomes possible to reduce the tensile stress generated by the opening / closing operation of the lid at both ends of the notch groove provided in the first hinge member. There is an effect that fatigue fracture of the notch groove can be prevented and fracture of the first hinge member can be prevented.

According to the invention of claim 6, in the cap of the container comprising the cap body of the container and a lid that is opened and closed by the hinge member at the opening of the cap body of the container, the hinge member includes the first hinge member and the first cap member. 2 hinge members are arranged on the top and bottom, and one of the first hinge member and the second hinge member is integrally formed with the cap body and the lid, and on the outer peripheral surface of the cap body of the container. A protrusion-like stopper to be joined when closing the lower edge of the lid is integrally formed, a part of the vertex of the protrusion-like stopper is cut out, and a handle is integrally formed at the periphery of the lid corresponding to the notch position. A container cap structure is provided.
With this structure, it is easy for the user to put his / her finger on the lower edge of the lid and open easily from the cap body of the container even when the lid is firmly closed to the container cap body. It becomes possible, and there is an effect that it is suitable for hygiene maintenance such as drinking water stored in a container.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a container cap structure according to the present invention will be described in detail with reference to the accompanying drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 is a perspective view showing an appearance of a cap of a container, FIG. 2 is a plan view thereof, and FIG. 3 is an arrow A- FIG. 4 is an enlarged sectional view of a hinge member that is a portion B shown in FIG. 3.

An outline of the container cap 18 is a container cap 18 used for a container for storing liquid food, medicine, daily necessities or beverages. The container cap 18 is configured such that the lid 21 is separated from the container main body when removing the contents. The cap 21 of the container is in a form in which the lid 21 is attached to the container body via the hinge member C. The present invention relates to the cap 18 of the container provided with the hinge member C.

A container cap 18 includes a container cap body 19, an opening 20, a lid 21, a first hinge member 22, and a second hinge member 23. The hinge member C is composed of the first hinge member 22 and the second hinge member 23. The first hinge member 22 is arranged on the upper side, and the second hinge member 23 is arranged on the lower side. The container cap 18 is used by being connected to and coupled to a container body, a storage bag, etc. (not shown) on a part of the outer periphery of the container cap body 19. The container cap main body 19 and the container main body are joined by considering the material of the container cap 18 and the container main body such as adhesion, press-fitting, heat fusion, ultrasonic fusion, etc. Adhere the body. Here, the container body is appropriately selected from a foldable container to a strong container. The contents stored in the container can be liquids, gels, granules, powders, and the like, and range from foods, medicines, drinking water, and feeds.

The cap 18 of the container is formed of various materials, and is integrally formed of a material such as low density polyethylene, low density linear polyethylene (LLDPE), or polypropylene. The cap body 19 of the container includes a cylindrical portion 19A in which the opening 20 is formed and a flange portion 19B. The flange portion 19B forms a flange 19a on the upper side. The cylindrical portion 19A is provided with a protruding stopper 19b on the outer peripheral surface. A part of the apex of the protruding stopper 19b forms a notch 19c. Further, a lid fixing projection 19d having a temporary fixing function when the lid 21 is closed to the opening 20 is formed between the protruding stopper 19b and the opening 20. On the inner surface of the lid 21, a wall portion 21b is provided so as to protrude downward from the side wall 21a with a gap S therebetween. When the user closes the lid 21 to the opening 20, first, the opening 20 is inserted into the gap S, and when the lid 21 is pushed further, the lower edge 21 c of the lid 21 (on the side wall 21 a). The lower edge) passes over the lid fixing projection 19d, stops at the projection-shaped stopper 19b, and the lid 21 closes the opening 20.

In the figure, 19C is an open plug of the cap body 19 of the container. When this is pulled with a user's finger, the open plug 19C is opened, and drinking water or the like stored in a container (not shown) is taken out from the container. be able to. Further, the cap body 19 of the container is provided with a cylindrical portion 19A and a flange portion 19B as shown in FIG. 1, but the present invention is not limited to this, and the cylindrical portion 19A and the like are omitted and directly opened. The portion 20 may be formed.

Next, the hinge member C will be described. The hinge member C includes a first hinge member 22 and a second hinge member 23 disposed immediately below the first hinge member 22. Thus, the first hinge member 22 and the second hinge member 23 are configured as double hinges arranged at the top and bottom as shown in FIGS. One of the first and second hinge members 22, 23 is integrally formed with the cap body 19 of the container, and the other is integrally formed with the lid 21, and the first hinge member 22 and the first hinge member 23 have substantially the same width and length. Is formed. The first hinge member 22 and the first hinge member 23 are made of the same material as the cap body 19 and the lid 21 of the container, for example, LDPE / LLDPE or polypropylene.

The first hinge member 22 is formed with a notch groove 22a in the width direction on the front surface or the back surface, for example, as shown in FIG. This notch groove 22a is formed in a substantially V-shaped or U-shaped cross section, and the one shown in FIG. 4 is formed on the back surface of the first hinge member 22. Further, the front end and the rear end of the notch groove 22a form a substantially V-shaped recess 22b as shown in FIG. Thereby, when the lid 21 is opened and closed to the opening 20 of the cap body 19 of the container, the opening / closing operation of the lid 21 is smoothed. Further, by reducing the width of the first hinge member 22, it becomes possible to reduce the tensile stress generated by the opening / closing operation of the lid 21 at both ends of the notch groove 22 a provided in the first hinge member 22. Fatigue failure of the notch groove 22a due to repeated opening and closing operations can be prevented, and breakage of the first hinge member 22 can be prevented. As shown in FIG. 4, the second hinge member 23 has a substantially curled cross section.

As shown in FIG. 4, the thickness t2 of the second hinge member 23 is set to be thicker than the thickness t1 of the cutout groove 22a of the first hinge member 22. That is, the inequality of thickness t2 of second hinge member 23> thickness t1 of notch groove 22a of first hinge member 22 is established. Therefore, the internal stress of the second hinge member 23 exceeds the internal stress of the first hinge member 22, and the position where the internal stress of the first hinge member 22 and the internal stress of the second hinge member 23 are balanced in the opening operation of the lid 21. That is, the lid 21 is stopped at an intermediate position line L1 from the reference line L0 of 180 degrees, which is the fully open position of the lid 21 shown in FIG. 1, to 0 degree, which is the fully closed position of the lid 21, and the inside of the second hinge member 23 Due to the stress, the lid 21 is not opened by 180 degrees or more, and the first hinge member 22 can be held in an opened state without causing excessive stress on the first hinge member 22.

The collar part 19B of the cap body 19 of the container is equipped with a solidified container body or an irregular storage bag body for storing a stored item such as drinking water. For example, as shown in FIG. 3, a plurality of locking pieces 19e are suspended from the lower surface of the flange portion 19B. A claw is formed on a part of the locking piece 19e so that the container main body and the like are easily fixed. When producing the cap body 19 of the container, the hinge member C can have a simple split mold structure, and the production thereof is easy.

Next, the operation and the like of the above-described embodiment of the container cap structure according to the present invention will be described.
As shown in FIG. 3, when the lid 21 is closed in the opening 20 of the cap body 19 of the container, the user contacts the notch 19 c of the protruding stopper 19 b with the finger and reverses the lid 21. Let open. At this time, since the notch 19c is formed by notching the top of the protruding stopper 19b, that is, flattened, the opening operation with a finger is smoothed, and the protruding stopper 19b is slightly thickened. This thickness ensures adhesion with the lower edge 21c of the lid 21, and the contents in the container body are completely shielded from the outside air to maintain the quality of the contents. The lid 21 is inverted about the notch groove 22a of the first hinge member 22.

At this time, the second hinge member 23 is formed to have a substantially curled cross section, the length side is set long, and the internal stress, that is, the reaction force acts in the direction of arrow D in FIG. Is held from the 180 degree reference line L0 (180 degree full open position) to the line L1 in the middle position. Therefore, excessive stress is not applied to the notch groove 22a of the first hinge member 22, and even when used for a long time, the notch groove 22a is not cut accidentally. Further, if the first hinge member 22 is cut, the second hinge member 23 can substitute for this hinge function, and the lid 21 is always held in a stable position. The lid 21 can be opened and closed smoothly.

When the lid 21 is opened, the user pulls the opening plug 19C, peels off the closing portion (not shown) of the opening 20, and takes out the contents in the container body or the like.

When closing the lid 21 from the intermediate line L1 shown in FIG. 1 to the opening 20 of the cap body 19 of the container, the user grasps the handle 21d formed on the side wall 21a of the lid 21 and holds the cap body of the container. The opening 20 is inserted into the gap S of the lid 21 while being in contact with the 19 opening 20. Accordingly, the lid 21 is temporarily fixed and fixed to the lid fixing projection 19d of the cap body 19 of the container, and the lid 21 is pushed further, so that the lower edge 21c of the lid 21 gets over the lid fixing projection 19d, and the lid 21 is attached to the protruding stopper 19b. Fix in close contact.

It is a perspective view which shows embodiment in the structure of the cap of the container which concerns on this invention. It is a top view which shows embodiment in the structure of the cap of the container which concerns on this invention. It is sectional drawing seen from the arrow AA line direction of FIG. It is an expanded sectional view of the area | region of B in FIG. It is a perspective view of the structure of the cap of the container in the 1st example of a prior art. It is a top view of the structure of the cap of the container in the 2nd example of a prior art. It is a perspective view of the structure of the cap of the container in the 3rd example of a prior art.

Explanation of symbols

18 Container Cap 19 Container Cap Body 19A Container Cap Body Tubular Part 19b Container Cap Body Tubular Projection Stopper 19c Container Cap Body Tubular Projection Stopper Notch Portion 19B of container cap body 19a Container cap body flange 19C Container cap body opening plug 19d Container cap body lid fixing projection 19e Container cap body flange Locking piece 20 Opening 21 of container cap body Lid 21a Lid side wall 21b Lid wall 21c Lid lower edge 21d Lid handle 22 First hinge member 22a First hinge member notch groove 22b First hinge Substantially V-shaped recess 23 of member Second hinge member C Hinge member t1 Notch groove thickness t2 of first hinge member Second hinge member thickness S Clearance L0 180 degree base Semi-line (full open position of the lid)
L1 Intermediate position line

Claims (6)

In a container cap comprising a container cap body and a lid that is opened and closed by a hinge member at an opening of the container cap body, the hinge member has the first hinge member and the second hinge member disposed above and below. A container cap structure, wherein one of the first hinge member and the second hinge member is integrally formed with the cap body and the lid. 2. The container cap structure according to claim 1, wherein the first hinge member has a notch groove in a width direction formed on a front surface or a back surface thereof. The container cap structure according to claim 1, wherein the second hinge member has a substantially curled cross section. 2. The container cap structure according to claim 1, wherein the second hinge member is set to have a thickness greater than that of the notch groove of the first hinge member. 3. The container cap structure according to claim 2, wherein the first hinge member has a substantially V-shaped recess formed at a front end and a rear end of the notch groove. In a container cap comprising a container cap body and a lid that is opened and closed by a hinge member at an opening of the container cap body, the hinge member has the first hinge member and the second hinge member disposed above and below. When one of the first hinge member and the second hinge member is integrally formed with the cap body and the lid, and the lower edge of the lid is closed on the outer peripheral surface of the cap body of the container A container cap structure characterized in that a protruding stopper to be joined is integrally formed, a part of the apex of the protruding stopper is notched, and a handle is integrally formed on the periphery of the lid corresponding to the notch position. .

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