JP5004627B2 - Hinge cap - Google Patents

Description

  The present invention relates to a hinge cap in which a liquid content is filled in a container and then cooling water that has entered the upper lid is removed or dried quickly and the upper lid is opened and closed smoothly. Further, the present invention relates to a hinge cap provided with at least two draining grooves formed by cutting out the locking protrusions on the side wall at a position symmetrical to a line connecting the flange portion of the upper lid located on the opposite side.

  The hinge cap is connected to the cap body and the upper lid by a hinge, and in addition to its openability, it also provides easy opening, enhancing convenience, so it contains liquid contents such as seasonings and natural fruit juice. It is often used for containers. That is, this hinge cap is made liquid-tight by plugging the cap body into the container mouth, and is kept in a liquid-tight state so as not to be easily removed. Is realized by the hinge connection. In addition, there is also a type in which the cap body is screwed on and off from the container mouth portion while being hinged.

When filling the above contents, in order to sterilize the product, perform a sterilization process such as a hot water shower process on the sealed container after high temperature filling, and finally cool it with cooling water. Of course, since the pressure between the cap body and the upper lid is also reduced, a phenomenon in which cooling water is sucked in between may occur. This suction cooling water is not hygienic even between the cap main body and the upper lid, and is uncomfortable for the consumer. Even if it is not high-temperature filling, there is a possibility of dripping at the time of filling, and there is a possibility that the washing water may enter between the cap body and the upper lid when washing. The following are known as techniques for suppressing such a phenomenon.
JP 2001-270540 A

  As shown in FIGS. 6 and 7, the hinge cap described in Patent Document 1 includes a cap body a and an upper lid b that are attached to a container mouth, and is connected to a hinge c. An annular projection f comprising an upper end plane f1 and a protruding portion f2 is formed between the cylinder d and the periphery of the top plate portion e, and the inner surface side of the skirt portion g of the upper lid b is between the annular projection f. A locking portion h that can be locked in a liquid-tight manner is formed, and this locking portion h is composed of a circumferential recess h1 and an annular horizontal surface h2, on which it becomes a contact surface with the lower end of the skirt portion g of the upper lid b. A water discharge notch i is formed in the peripheral edge k of the top plate portion e of the cap body a.

  Then, when the cap body a is covered with the upper lid b, the protruding portion f2 of the annular protrusion f of the cap body a engages with the circumferential recess h1 of the locking portion h of the upper lid b, and the annular protrusion of the cap body a The upper end plane f1 of the part f is in close contact with the annular horizontal plane h2 of the locking part h of the upper lid b. Accordingly, the inside of the hinge cap is depressurized by cooling, and the top surface j of the upper lid b is deformed to the container side, or even if an external force is applied to the upper lid b from above, the skirt portion g of the upper lid b may be displaced downward. This prevents the displacement between the annular protrusion f of the cap body a and the engaging portion h of the upper lid b, and it is possible to maintain a reliable sealing and prevent the phenomenon of sucking cooling water. On the other hand, water accumulated on the contact surface between the lower end of the skirt portion g of the upper lid b and the peripheral edge k of the top plate portion e of the cap body a is quickly discharged from the water discharge notch i.

  In the hinge cap of Patent Document 1, the annular protrusion f of the cap body a and the engaging portion h of the upper lid b are brought into close contact with each other, and the skirt portion g of the upper lid b is prevented from being displaced downward, so that a reliable sealing is achieved. Can be prevented, and the phenomenon of cooling water being sucked into the space inside the cap inside the periphery of the top plate portion of the cap body can be prevented. However, when the hinge cap is actually plugged into the mouth of the container, there is a phenomenon in which the annular projection f of the cap body a falls down and deforms, and as a result, the protrusion f2 of the annular projection f of the cap body a. And the engagement with the circumferential recess h1 of the locking part h of the upper lid b tends to be sweet, and in that case, there is a risk that a large amount of cooling water may be sucked in a relatively strong decompression state. It is difficult to completely discharge the cooling water from the water discharge notch i or to completely dry out the cooling water. However, if the engagement between the annular projecting portion of the cap body and the locking portion of the upper lid is strengthened, the phenomenon of sucking the cooling water can be prevented, but the upper lid opening force is increased. Therefore, it can be said that the allowable width of the design dimension that satisfies both the contradictory phenomena is small. Furthermore, not only the hinge cap but also a resin cap tends to reduce the amount of resin used for the purpose of cost reduction, so that the shape retention becomes weak. For example, when opening the upper lid b, the A portion of the skirt portion g in FIG. Is deformed inward (arrow Y), there is a problem that the engaging portion h of the upper lid b and the annular projection f of the cap body a are strongly engaged, making it difficult to open.

  Therefore, the object of the present invention is that the upper lid can be easily opened and closed without being affected by the mounting method of the cap body to the container mouth, and moreover than the cap dispensing cylinder despite the appearance of the decompressed state accompanying the high temperature filling of the contents. An object of the present invention is to provide a hinge cap that can prevent the cooling water from being sucked inward, and can smoothly discharge or dry out the cooling water from the pipe.

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention, the cap main body and the upper lid are connected to each other by a hinge so as to be freely opened and closed, and the cap main body is suspended from the top surface and the periphery of the top surface and is fitted and fixed to the container mouth. A skirt wall is formed on the top surface, and an opening is formed on the top surface, and an extraction tube surrounding the planned opening is formed, and an outer periphery of a locking protrusion for closing and fixing the upper lid outside the injection tube An outer wall formed on the surface is formed, and the upper lid is composed of a top plate and a side wall depending from the peripheral edge of the top plate, and is suspended from the top plate and comes into contact with the inner surface of the dispensing cylinder. In the hinge cap formed with an inner ring, and formed on the inner peripheral surface of the side wall with a locking protrusion to be locked with the locking protrusion of the outer wall,
The top plate of the upper lid has a sealing cylinder that hangs downward from between the side wall and the inner ring and can be sealed against the outer wall of the cap body, and at least the locked protrusion on the side wall of the upper lid. At least two grooves formed by notching strips are provided at positions symmetrical with respect to a line connecting the center of the hinge and the collar portion of the upper lid located on the opposite side of the hinge ,
The circumferential center portion of the groove is 30 degrees from the center line of the upper lid perpendicular to the line connecting the center of the hinge and the flange portion of the upper lid located on the opposite side to the flange portion side with respect to the center line. Located within the range
In the closed state of the upper lid, the groove is provided with a hinge cap characterized in that the space surrounded by the seal cylinder, the top plate and the side wall in contact with the outer wall and the outside are kept in a vented state .

In the hinge cap of the present invention, when the skirt wall of the cap body is fitted and fixed to the mouth of the container with the upper lid closed, the outer wall falls slightly inward and the inner peripheral surface is the tip of the seal cylinder The seal tube is displaced inward, and the locking protrusion on the outer wall of the cap body moves slightly inward, so that the locking state with the locked protrusion on the side wall of the upper lid is relaxed. The
On the other hand, when opening the upper lid from the cap body, the side wall of the upper lid located at the center of the hinge and the opposite side is a side wall symmetrical to the line connecting the center of the hinge and the upper lid collar located at the opposite side. from the center line of the upper lid perpendicular to the line connecting the parts, by a range of up to 30 degrees on the flange portion side with respect to said center line is deformed inwardly, the presence of grooves in its position, the cap body When opening the upper lid from the top, there is a groove in the locking ridge located at the portion where the side wall of the upper lid is deformed inward most, and the locking ridge of the cap body and the locking ridge of the upper lid The locked state is released. Therefore, although the cap body is shaped so as to be plugged into the mouth of the container, the outer wall is strongly influenced by the repulsive force due to the inward displacement of the seal cylinder, despite the appearance of a reduced pressure state due to the high temperature filling of the contents. The inner peripheral surface of the cap can be pressed against the tip of the seal cylinder to completely prevent the cooling water from being sucked. In addition, the locking protrusion of the cap body is locked with the locking protrusion of the upper lid. Is relaxed, and the amount of the locked state is released by the groove, so that the upper lid can be easily opened and closed, and the resin amount of the upper lid can be reduced.

Further, by keeping the space surrounded by the seal cylinder, the top plate and the side wall in contact with the outer wall and the outside in a vented state, the seal cylinder, the top plate and the side wall in contact with the outer wall are closed when the upper cover is closed. Even if water enters the open space, the water is discharged by a groove vented to the outside. Therefore, even if the cooling water enters the space, there is an effect that the intruding water is removed to the outside or dried and disappeared.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a state in which a hinge cap showing an embodiment of the present invention is plugged into the mouth of a container, FIG. 2 is a longitudinal sectional view of a state in which the hinge cap of FIG. FIG. 4 is an enlarged longitudinal sectional view of the main part of the hinge cap, FIG. 4 is a plan view of the hinge cap opened, and FIG. 5 is a longitudinal sectional view of the hinge cap opened.
In these drawings, a hinge cap 1 is a cap body 10 and an upper lid 20 that are connected to each other by a hinge 30 so as to be freely opened and closed. The cap body 10 is suspended from a top surface 11 and a peripheral edge of the top surface 11. And a skirt wall 12 that is fitted and fixed to the mouth portion 3 of the second portion. On the top surface 11, an opening portion 13 and a pouring cylinder 14 that surrounds the opening portion 13 are formed. An outer wall 15 having a locking protrusion 15a for closing and fixing the upper lid 20 on the outer peripheral surface is formed on the outer side. The upper lid 20 includes a top plate 21 and a side wall 22 depending from the peripheral edge of the top plate 21. An inner ring 23 that hangs down from the top and contacts the inner surface of the pouring tube 14 is formed on the top plate 21, and the locking protrusion 15 a of the outer wall 15 is locked to the inner peripheral surface of the side wall 22. The locked protrusion 24 to be shaped One in which you composed.

  The container 2 to which the hinge cap 1 is attached is not particularly limited as long as the cap body 10 can be stoppered or screwed into the mouth portion 3 and may be of any type and material, but the contents are particularly frequent. Suitable for containers that have the greatest influence on the hinge cap, because the container is relatively open and closed by the upper lid 20 and is not deformed by decompression in the container in the cooling process after high-temperature filling. It can respond to.

  The cap body 10 is provided with a skirt wall 12 and an inner cylinder 16 below the top surface 11 to form a fitting portion 17, and the mouth portion 3 of the container 2 is plugged into the fitting portion 17. Make it liquid-tight. Further, as described above, since the upper lid 20 is connected to the cap body 10 via the hinge 30, the upper lid 20 is rotatable around the hinge 30. Since the outer wall 15 is provided on the top surface 11 outside the pouring tube 14 as described above, even if there is liquid dripping from the pouring tube 14, the outer wall 15 is immediately outside. It is designed not to spill.

  Further, the planned opening portion 13 inside the dispensing cylinder 14 is surrounded by the score 18 and is a part that can be removed by breakage. The score tearing tab 19 provided on the planned opening portion 13 is hooked and pulled. Then, it is possible to break the score 18 and remove the planned opening portion 13 for opening. In FIG. 2, 19 a is a slip stopper when placing a finger on the score tearing tab 19. On the other hand, the main seal after opening is performed by fitting the inner ring 23 of the upper lid 20 to the dispensing tube 14 of the cap body 10. When the outer peripheral surface 23a of the inner ring 23 abuts on the sealing protrusion 14a at the lower portion of the inner peripheral surface of the dispensing cylinder 14, a seal after opening is made.

  The upper lid 20 has a side wall 22, a seal cylinder 25 and an inner ring 23, which will be described later in detail, suspended from the outside to the inside under the top plate 21. One end of the side wall 22 is connected to a hinge 30 so that it can be opened and closed. A collar portion 27 is provided at the end to facilitate opening and closing of the upper lid 20. Furthermore, the locking ridge 24 is formed on the inner peripheral surface of the side wall 22, and is locked to the locking ridge 15 a of the outer wall 15 of the cap body 10. In addition to preventing the entry of garbage and the like.

  The seal cylinder 25 provided under the top plate 21 of the upper lid 20 is in contact with the outer wall 15 of the cap body 10 so as to be able to seal, and completely prevents the suction of fluid from the outside. The seal tube 25 is formed with an annular tongue piece 26 having an inclined surface 26a whose outer surface extends inward and downward at the inner peripheral edge of the lower end. On the other hand, the outer wall 15 of the cap body 10 has an arcuate surface 15b at the boundary between the upper surface and the inner peripheral surface. Therefore, when the upper lid 20 is closed to the cap body 10, the inclined surface 26 a of the annular tongue piece 26 presses against the arcuate surface 15 b of the outer wall 15, and the upper surface of the outer wall 15 comes into contact with the lower surface of the seal cylinder 25.

  When the hinge cap 1 is fitted and fixed to the mouth 3 of the container 2 with the top lid 20 closed on the cap body 10, the skirt wall 12 of the cap body 10 is displaced slightly outward, and the outer wall 15 is moved to the inner side. The position of the outer wall 15 that presses against the inclined surface 26a of the annular tongue piece 26 of the seal tube 25 changes slightly, but the press contact surface of the outer wall 15 is an arcuate surface 15b, so that the press contact state is maintained. Then, the suction of the fluid from the outside such as the cooling water can be completely prevented.

  Further, since the upper surface of the outer wall 15 is in contact with the lower surface of the seal cylinder 25, even if the hinge cap 1 is plugged into the mouth 3 of the container 2, the load is received by the side wall 22 of the upper lid 20 and the seal cylinder 25. Therefore, the load can be distributed and the side wall 22 of the upper lid 20 and the seal cylinder 25 are prevented from buckling. Further, a rib 28 for bridging is intermittently provided on the top plate 21 between the side wall 22 and the seal cylinder 25, and the rib 28 reinforces the seal cylinder 25, thereby further preventing the buckling of the seal cylinder 25. Will do.

  On the other hand, as the outer wall 15 is slightly tilted inward, the locking ridge 15a slightly moves inward, and the locked state of the side wall 22 of the upper lid 20 with the locked ridge 24 is slightly relaxed. The Therefore, it has the demerit when the cap body 10 is plugged into the mouth 3 of the container 2, and the repulsion due to the inward displacement of the seal cylinder 25 despite the appearance of the reduced pressure state due to the high temperature filling of the liquid contents. By using the force, the arcuate surface 15b of the outer wall 15 is more strongly pressed against the inclined surface 26a of the annular tongue 26 to completely prevent the cooling water from being sucked. Since the locking state between the protrusion 15a and the locked protrusion 24 of the upper lid 20 is slightly relaxed, the upper lid 20 can be easily opened and closed.

  As described above, since the pressure contact state between the seal cylinder 25 of the upper lid 20 and the outer wall 15 of the cap body 10 is maintained, there is no suction of fluid from the outside such as cooling water on the inner side. That is, in the closed state of the upper lid 20, there is a possibility that fluid from the outside enters the space 41 surrounded by the seal cylinder 25, the top plate 21, and the side wall 22 in contact with the outer wall 15. Therefore, a normal groove is provided to remove water that has entered the outer space 41. The groove 40 is formed by cutting out at least the locked protrusion 24 on the side wall 22 of the upper lid 20, and the position thereof is the center 31 of the hinge 30 and the flange portion 27 of the upper lid 20 located at the opposite side. At least two are provided at positions symmetrical with respect to the line L1 connecting the center 27a, and the space 41 and the outside are kept in a vented state.

  The two grooves 40 at the symmetrical positions can remove water from the space 41 or dry and disappear, and of course, the locking protrusion 15a of the cap body 10 and the locking of the upper lid 20 The locked state of the two grooves 40 with the ridge 24 is released. The upper cover 20 can be easily opened and closed by the release of the groove 40, and even if the amount of resin used in the upper cover 20 is reduced and the shape retention of the upper cover 20 is reduced, Smooth opening and closing can be maintained.

  When the upper lid 20 is opened from the cap body 10 by the collar portion 27, the side wall 22 of the upper lid 20 is perpendicular to a line L1 that connects the center 31 of the hinge 30 and the center 27a of the collar portion 27 located on the opposite side. From the center line L2 of 20, the side wall 22 in the range 42 up to 30 degrees on the flange 27 side with respect to the center line L2 is deformed inwardly. That is, in this range 42, the locking state between the locking ridge 15 a of the cap body 10 and the locked ridge 24 of the upper lid 20 is the strongest, and the circumferential direction of the groove 40 is within this range 42. The center is located. Therefore, when the upper lid 20 is opened, the groove 40 is formed in the locked protrusion 24 that is present in the portion where the side wall 22 is most deformed, so that the locked state of the portion is released and the upper lid 20 can be easily opened and closed. In addition, the amount of resin used for the upper lid can be efficiently reduced.

Next, a method for using the hinge cap 1 configured as described above will be described.
First, a hinge cap 1 with the top lid 3 fitted to the cap body 2 is filled, and the container 2 is filled with a liquid content at a high temperature of about 90 ° C., and the mouthpiece 3 of the container 2 is applied to the fitting part 17 Thus, the inside of the container 2 is sealed with the hinge cap 1 (see FIGS. 1 and 2). At that time, the capping load is also distributed to the seal cylinder 25 and transmitted to the cap body 10 to prevent the side wall 22 of the upper lid 20 from buckling. At the same time, the outer wall 15 of the cap body 10 falls inward due to the stopper, and the arcuate surface 15b presses the inclined surface 26a of the annular tongue piece 26 more strongly, so that suction of cooling water or the like can be completely prevented. .

  When the product is used, at least a portion of the hinge cap 1 is bare so that the upper lid 20 can be opened from the cap body 10. As described above, the locking state between the locking ridge 15a of the cap body 10 and the locked ridge 24 of the upper lid 20 is slightly relaxed, and in addition, the locking ridge 15a and the locked protrusion are formed by the groove 40. Since the locked state with the strip 24 is released, the upper lid 20 can be easily opened from the cap body 10 by pushing up the collar portion 27 with fingers. Further, if the score tearing tab 19 is pulled with a finger, the score 18 is broken, and the planned opening portion 13 is removed to open the score tear tab 19. Then, the required amount of liquid content in the container 2 can be poured from the dispensing tube 14 of the cap body 10 into the necessary location. After the liquid content is poured, when the cap body 10 is covered with the upper lid 20, the inner ring 23 is fitted into the dispensing cylinder 14, and the seal cylinder 25 of the upper lid 20 and the outer wall 15 of the cap body 10 The pressure contact state is maintained, and the liquid content in the container 2 is sealed so as not to leak. Thereafter, the same operation as described above is repeated until the liquid contents in the container 2 are used up.

  Although the first embodiment of the present invention has been described above, it should be understood that the specific configuration is not limited to this, and that changes can be made as appropriate without departing from the scope of the present invention.

  The hinge cap of the present invention needs to be subjected to a sterilization process such as a hot water shower process after filling the container with a high-temperature liquid content. It is highly available when water is sucked in or when it is desired to reduce the amount of resin used, especially when the hinge cap is shaped into the mouth of a rigid container. Get higher.

It is a longitudinal cross-sectional view of the state which plugged the hinge cap which shows embodiment shown in Example 1 of this invention in the opening part of the container. It is a longitudinal cross-sectional view of the state which rotated the hinge cap of FIG. 1 90 degrees. It is an expanded vertical sectional view of the principal part of the hinge cap. It is a top view of the state which opened the hinge cap. It is a longitudinal cross-sectional view of the state which opened the hinge cap. It is a top view which shows the prior art example of a hinge cap. It is a longitudinal cross-sectional view which shows the other conventional example of a hinge cap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hinge cap 2 Container 3 Mouth part 10, a Cap main body 11, j Top surface 12 Skirt wall 13 Planned opening part 14, d Extraction cylinder 14a Sealing protrusion 15 Outer side wall 15a Locking protrusion 15b Arc-shaped surface 16 Inner cylinder 17 Plugging portion 18 Score 19 Score tear tab 20, b Top lid 21 Top plate 22 Side wall 23 Inner ring 23a Outer peripheral surface 24 Locked protrusion 25 Seal tube 26 Annular tongue piece 26a Inclined surface 27 Gutter 27a, 31 Center 28 Rib 30, c Hinge 40 Groove 41 Space 42 Range e Top plate part f Annular protrusion f1 Upper end plane f2 Projection part g Skirt part h Locking part h1 Circumferential recess h2 Annular horizontal plane i Water discharge notch k Perimeter L1 line L2 Center line

Claims (1)

The cap body and the upper lid are connected by a hinge so as to be freely opened and closed.
The cap body is composed of a top surface and a skirt wall that hangs down from the peripheral edge of the top surface and fits and fixes to a container mouth, and on the top surface, the opening portion and the pouring cylinder that surrounds the opening portion And forming an outer wall having a locking ridge on the outer peripheral surface for closing and fixing the upper lid outside the dispensing cylinder,
The upper lid is composed of a top plate and a side wall depending from the peripheral edge of the top plate, and forms an inner ring that is suspended from the top plate and comes into contact with the inner surface of the dispensing cylinder. In the hinge cap formed on the surface, a locked protrusion that locks with the locking protrusion of the outer wall,
The top plate of the upper lid has a sealing cylinder that hangs downward from between the side wall and the inner ring and can be sealed against the outer wall of the cap body, and at least the locked protrusion on the side wall of the upper lid. At least two grooves formed by notching strips are provided at positions symmetrical with respect to a line connecting the center of the hinge and the collar portion of the upper lid located on the opposite side of the hinge ,
The circumferential center portion of the groove is 30 degrees from the center line of the upper lid perpendicular to the line connecting the center of the hinge and the flange portion of the upper lid located on the opposite side to the flange portion side with respect to the center line. Located within the range
The groove cap maintains the space surrounded by the seal cylinder, the top plate and the side wall in contact with the outer wall and the outside in a closed state when the upper cover is closed .