JP6788884B2 - cap - Google Patents

Description

The present invention relates to a cap attached to a container.

Conventionally, some caps have an inner plug attached to a container and having a spout, and a rotatable lid that is placed on the inner plug to open and close the spout of the inner plug. Further, in this type of cap, when the lid is rotated to the state immediately before closing in order to make it easier to recognize that the spout of the inner plug is rotated to the closed state (also referred to as the state immediately before closing) by the lid. In addition, a structure that produces a response and a sound (a so-called click feeling) is already known. According to the cap having such a configuration, it is possible to prevent liquid leakage due to insufficient closing of the lid, or to prevent the lid and the inner plug from being damaged by closing the lid too much.

As described above, as a structure that produces a response and a sound when the lid is rotated to the state immediately before closing the spout of the inner plug, for example, FIG. 18 (a perspective view showing the container and the lid of the container). What is shown in FIG. 19 (enlarged plan sectional view of a main part) is disclosed in Patent Document 1. As shown in FIGS. 18 and 19, in this container 80, a neck portion 82 that protrudes upward from the shoulder portion 81 of the container 80 in a tubular shape is provided, and a spout 83 is opened at the upper end of the neck portion 82 to form a neck portion 82. A threaded portion 84 is formed on the outer circumference. Then, a pair of the first stopper piece 85 and the first return prevention piece 86 so as to integrally project in the outer diameter direction to the lower end portion (the connection portion between the shoulder portion 81 and the neck portion 82) of the neck portion 82. Is formed at a target position with respect to the axial center of the neck portion 82.

Further, in the lid body 90, a screw cylinder 93 having a screw portion 92 screwed to the screw portion 84 of the container 80 is formed in the central portion of the inner lid 91, and on the peripheral edge of the opening side end portion of the screw cylinder 93. A pair of the second stopper piece 94 and the second return prevention piece 95 are formed so as to project downward. Then, when the lid 90 is rotated to near the completely closed position, as shown in FIG. 19, the second return prevention piece 95 comes into contact with the first return prevention piece 86, and the first return prevention piece 96 comes into contact with the first return prevention piece 86. The 86 is elastically deformed, and after that, a sound is emitted when the second stopper piece 95 is passed over and separated from the second stopper piece 95. Immediately after this, the second stopper piece 94 abuts on the first stopper piece 85 to regulate the position. It is configured to prevent the lid 90 from being over-closed.

Jitsukaisho 60-146054

However, in the above-mentioned conventional form, the first return prevention piece 86 is configured to protrude in the outer diameter direction from the lower end portion of the neck portion 82, and the second return prevention piece 86 is in contact with the first return prevention piece 86. The return prevention piece 95 of the inner lid 91 must be formed so as to project outward and downward from the peripheral edge of the opening side end of the screw cylinder 93 in the inner lid 91. Therefore, the portion of the neck portion 82 where the first return prevention piece 86 is provided and the portion of the inner lid 91 where the second return prevention piece 95 is provided become larger in the radial direction, and the lid 90 has a large diameter. It will be necessary.

Further, the first return prevention piece 86 projecting from the neck portion 82 in the outer diameter direction abuts on the second return prevention piece 95 projecting from the screw cylinder 93 in the radial direction, and emits sound while deforming. Since it is a structure, if the overlapping dimensions are not strictly specified at this time, the overlapping dimensions in the radial direction are too large to close the lid 90, or the overlapping dimensions in the radial direction are too small to cause poor contact. There is a risk that there will be no sound or no sound will be produced. Further, by continuing to use the container, the first return prevention piece 86 and the second return prevention piece 95 may be worn out, resulting in unresponsiveness or no sound. Further, the same problem may occur due to the radial deformation of the lid 90 and the manufacturing error.

The present invention solves the above problems, and when the lid is rotated to a state in which the spout of the inner plug is satisfactorily closed without projecting outward from the tubular portion in which the threaded portion of the lid is formed. It is an object of the present invention to provide a cap capable of producing a good response and sound.

In order to solve the above problems, the present invention has an inner plug attached to a container and having a spout, and a rotatable lid that is placed on the inner plug and opens and closes the spout of the inner plug. A cap attached to the mouth of the lid, the inner plug is provided with a nozzle portion having a spout formed at the upper end and a threaded portion formed on the outer periphery thereof, and the lid body is provided with a threaded portion of the inner plug. A tubular portion having a threaded portion screwed into the lid is provided on the inner circumference, and a stopper engaging portion and sound repellency are provided at a position in the lower portion of the tubular portion of the lid body that overlaps the tubular portion in a plan view. A protrusion is formed, and when the lid is closed, the lid is closed by engaging with the stopper engaging portion at a position where the lid is overlapped with the tubular portion of the lid in a plan view. It is characterized in that a stopper portion that regulates the position and a sound-repellent protrusion that generates sound by the sound-repellent protrusion when it comes into contact with the sound-repellent protrusion and gets over it are provided.

In the above configuration, when the lid is attached to the inner plug and rotated in the direction of closing the lid, the lid is lowered relative to the inner plug, and in the vertical direction, it is with the stopper engaging portion of the lid. The sound-repellent protrusion is relatively close to the stopper portion of the inner plug and the sound-repellent protrusion. Then, when the lid is rotated to the front of the completely closed position, the sound-repellent protrusion formed at the lower part of the tubular portion of the lid first comes into contact with the sound-repellent protrusion formed on the inner plug. It elastically deforms and emits a sound when it gets over the sound-repellent protrusion. Further, when the lid body is rotated to a completely closed position, the stopper engaging portion of the lid body comes into contact with the stopper portion to restrict further rotation of the lid body, and the lid body is maintained in a well-closed state.

In this case, a stopper engaging portion and a sound-repellent protrusion are formed at a position of the lower portion of the tubular portion of the lid body that overlaps the tubular portion in a plan view, and the lid body of the inner plug is closed. At that time, the stopper portion that engages with the stopper engaging portion and regulates the closing position of the lid is in contact with the sound-repellent protrusion at a position where it overlaps the tubular portion of the lid in a plan view. Since a sound-repellent protrusion that generates sound when overcoming is provided, even if a stopper engaging portion, a stopper portion, a sound-repellent protrusion, or a sound-repellent protrusion is provided, these are viewed in a plan view and a tubular portion. Can be arranged within the range provided with. Therefore, the space for providing the stopper engaging portion, the stopper portion, the sound-repellent protrusion, and the sound-repellent protrusion can be minimized in the radial direction, and even when the diameter of the inner plug or lid is relatively small. It will be possible to respond.

Further, the present invention is characterized in that the sound-repellent protrusion protrudes downward from the tubular portion of the lid body. As a result, the sound-repellent protrusion does not spread outward (outer diameter direction), and the downward protrusion length of the sound-repellent protrusion can be appropriately selected, and the sound-repellent protrusion is a sound-repellent protrusion. It is possible to respond so as to give a good response and sound when returning after being elastically deformed in contact with.

It is preferable that the sound-repellent protrusion is formed in a shape that projects upward in the inner plug, whereby the sound-repellent protrusion is in good contact with the sound-repellent protrusion and is elastically deformed. However, it is possible to configure it so that it produces a good response and sound.

Further, according to the above configuration, when the lid is closed, the sound-repellent protrusion of the lid and the sound-repellent protrusion of the inner plug overlap in the vertical direction to repel sound. By forming the sound-repellent protrusion of the inner plug in the area corresponding to the thickness direction, it becomes difficult to close the lid or the contact becomes poor and there is no response even if the overlapping dimensions are not strictly specified at this time. It is possible to minimize the possibility that the sound will not be emitted. Further, even when the container is used continuously, it is possible to make the degree of wear of the stopper engaging portion of the lid and the sound-repellent protrusion almost the same as the degree of wear of the stopper portion of the inner plug and the sound-repellent protrusion. It is possible to prevent the above-mentioned problems. Furthermore, similar defects are less likely to occur due to radial deformation of the lid and manufacturing errors.

Further, the present invention is characterized in that the stopper engaging portion of the lid body and the stopper portion of the inner plug are each formed in a saw blade shape when viewed from the side. As a result, when the lid is completely closed, the stopper portion comes into good contact with the stopper engaging portion to regulate the position.

Further, the present invention is characterized in that the sound repellent protrusions are provided at every 180 degrees (that is, two (one pair)) in the circumferential direction in the lower part of the tubular portion of the lid. By reducing the number of sound-repellent protrusions on the lid in this way, for example, at a position below the tubular portion of the lid, every 90 degrees with respect to the circumferential direction (that is, four (two pairs)). )) The shape of the mold can be made simpler and the manufacturing cost can be reduced as compared with the case where the mold is provided.

According to the present invention, a stopper engaging portion and a sound-repellent protrusion are formed at a position overlapping the tubular portion in a plan view in the lower portion of the tubular portion of the lid, and the lid in the inner plug is closed. When the stopper portion that engages with the stopper engaging portion to regulate the closing position of the lid and the sound-repellent protrusion come into contact with each other at a position where they overlap the tubular portion of the lid in a plan view. The lid is provided with a sound-repellent protrusion that generates sound by the sound-repellent protrusion, so that the stopper engaging portion and the stopper portion, the sound-repellent protrusion and the sound-repellent protrusion can be viewed in a plan view, and the cylinder of the lid body. It can be substantially arranged within the range in which the shaped portion is provided. Therefore, the space for providing the stopper engaging portion, the stopper portion, the sound-repellent protrusion, and the sound-repellent protrusion can be minimized in the radial direction, and by extension, when the diameter of the inner plug or lid is relatively small. However, it is also possible to reduce the manufacturing cost.

Further, by projecting the sound-repellent protrusion downward from the tubular portion of the lid, the sound-repellent protrusion does not spread outward (in the outer radial direction), and the downward protrusion length of the sound-repellent protrusion is also increased. It can be appropriately selected, and when the sound-repellent protrusion comes into contact with the sound-repellent protrusion and elastically deforms and then returns, it is possible to respond so as to give a good response and sound.

Further, according to the above configuration, when the lid is closed, the sound-repellent protrusion of the lid and the sound-repellent protrusion of the inner plug overlap in the vertical direction to repel sound, which makes it difficult to close the lid. , It is possible to minimize the possibility that the contact is poor and the response is lost or the sound is not emitted, and the reliability can be improved.

Further, by forming the stopper engaging portion of the lid body and the stopper portion of the inner plug into a saw blade shape when viewed from the side, the stopper portion becomes the stopper engaging portion when the lid body is completely closed. It is possible to make good contact and regulate the position, and it is possible to obtain good reliability.

Further, by providing the sound-repellent protrusions at every 180 degrees with respect to the circumferential direction in the lower part of the tubular portion of the lid body, the shape of the mold is made easier when the lid body is resin-molded with the mold. As a result, the manufacturing cost can be reduced.

It is a partial cut-out front sectional view of the cap which concerns on embodiment of this invention, and shows the state which attached the lid body to the inner plug. It is a perspective view which shows the inner plug and the lid body of the cap, and shows the state which the lid body was removed from the inner plug. The lid is a perspective view seen from diagonally below, and the inner plug is a perspective view seen from diagonally above. It is a front view of the inner plug of the cap. It is a left side view of the inner plug of the cap. It is a vertical sectional view of the inner plug of the cap. It is a partial cutout plan view of the inner plug of the cap. It is a vertical sectional view of the lid body of the cap. It is a bottom view of the lid body of the cap. It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state before the sound-repellent protrusion comes into contact with the sound-repellent protrusion. It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state immediately before the sound-repellent protrusion comes into contact with the sound-repellent protrusion. It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state when a sound-repellent protrusion gets over a sound-repellent protrusion. It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state when the sound-repellent protrusion gets over the sound-repellent protrusion (the viewing direction is different from FIG. 11). It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state which the stopper engaging part is engaged with the stopper part. It is a perspective view which shows the state when the lid body is attached to the inner plug of the cap and is closed, and shows the state which the stopper engaging part is engaged with the stopper part (the viewing direction is different from FIG. 13). It is a front sectional view of the lid body of the comparative example. It is sectional drawing which shows the molding process which manufactures the lid body of the same comparative example. It is sectional drawing which shows the molding process which manufactures the lid body of the cap which concerns on embodiment of this invention. It is a perspective view which shows the conventional container and the lid body of a container. It is an enlarged plan sectional view of the main part of the conventional container and the lid body of the container.

Hereinafter, the cap according to the embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a cap according to the present embodiment, which is a rotatable inner plug 10 which is attached to a container 2 and has a spout 11 and which is placed on the inner plug 10 to open and close the spout 11 of the inner plug 10. It has a screw-type lid 30 and is attached (attached) to the mouth portion 2a of the container 2. The inner plug 10 and the lid 30 are each manufactured by injection molding with a synthetic resin such as polyethylene or polypropylene, and have an elastically deformable property.

As shown in FIGS. 1 to 6, the inner plug 10 has a cylindrical body portion 12, an upper surface portion (also referred to as a top surface portion or a plate surface portion) 13 provided at the upper end portion of the body portion 12, and an upper surface portion. It has a nozzle portion 15 projecting upward from the center of the body 13 and an inner cylinder portion 16 provided with a gap on the inner circumference of the body portion 12. Then, the mouth portion 2a of the container 2 is inserted into the space between the body portion 12 and the inner cylinder portion 16, and the inner plug 10 is attached (attached). In this embodiment, a collar-shaped portion 14 projecting to the outer peripheral side is formed on the lower edge of the outer peripheral portion of the body portion 12, and a locking protrusion projecting to the outer peripheral side is formed in the vertical intermediate portion of the outer peripheral portion of the body portion 12. Part 25 is formed.

A male screw portion 17 as a screw portion is formed on the outer circumference of the nozzle portion 15 of the inner plug 10. In this embodiment, the male screw portion 17 is a so-called double-threaded screw in which two threads are formed at intervals of 180 degrees with respect to the circumferential direction, but the present invention is not limited to this, and one screw thread is used. Threads may be formed, or three or more threads may be formed.

Further, at the connecting portion between the upper surface portion 13 and the nozzle portion 15 of the inner plug 10, a step portion 18 projecting upward in a stepped shape is formed on the entire circumference of the lower end portion of the nozzle portion 15. Further, on the upper surface of the step portion 18, a stopper portion 19 that regulates the closing position of the lid body 30 and a sound repellent protrusion 20 that generates sound by a sound repellent protrusion described later are provided. The stopper portions 19 are formed so as to be inclined in a saw blade shape when viewed from the side, and in this embodiment, the stopper portions 19 are formed at four locations in the circumferential direction (every 90 degrees in the circumferential direction). There is. The saw blade-shaped stopper portion 19 has a first stopper portion 19A having a relatively long inclined surface in the circumferential direction (an angle range of about 90 degrees when a portion near the nozzle portion 15 of the inner plug 10 is viewed in a plan view). And the second stopper portion 19B having a relatively short inclined surface in the circumferential direction (an angle range of less than 45 degrees when the portion near the nozzle portion 15 of the inner plug 10 is viewed in a plan view) is centered on the nozzle portion 15. Two (one pair) are provided on opposite sides in a plan view. Further, the sound repellent protrusion 20 is continuously formed at the end of the second stopper portion 19B so as to project upward, but the opposite side of the sound repellent protrusion 20 with respect to the circumferential direction of the nozzle portion 15, that is, The region between the sound-repellent protrusion 20 and the top of the first stopper 19A is a concave portion 21 recessed downward.

In this embodiment, the above-mentioned components (body portion 12, upper surface portion 13, nozzle portion 15, inner cylinder portion 16, male screw portion 17, step portion 18, stopper portion 19, sound repellent protrusion 20, etc.) However, the inner plug 10 is integrally formed, but the present invention is not limited to this.

As shown in FIGS. 1, 7, and 8, the lid 30 has a circular top plate portion 31 and a cylindrical skirt portion 32 hanging from the outer peripheral edge of the top plate portion 31, and has an inner plug inside. A tubular portion 34 in which a female threaded portion 33 as a threaded portion to be screwed into a male threaded portion (threaded portion) 17 of 10 is formed on the inner circumference, and a first sloping portion that hangs down in a small diameter tubular shape at a portion near the center of the skirt portion 32. It has an auxiliary cylinder portion 35A and a second auxiliary cylinder portion 35B that hangs down in a tubular shape with a diameter larger than that of the tubular portion 34 at an inner peripheral portion of the skirt portion 32. The female screw portion 33 of the lid body 30 has a shape that is recessed corresponding to the male screw portion 17 of the inner plug 10, and has a two-row female screw shape in this embodiment, but the female screw portion 33 of the lid body 30. Any shape may be used as long as it corresponds to. Further, when the lid 30 is attached to the inner plug 10 and closed, the first auxiliary cylinder portion 35A comes into close contact with the inner peripheral surface of the spout 11 and the second auxiliary cylinder portion 35B has a lower end edge thereof. It comes into close contact with the upper surface portion 13 of the inner plug 10 from above.

Further, a thin-walled weakened portion 47 is formed in the lower portion of the skirt portion 32 of the lid body 30, and a locking flap portion 46 extending diagonally upward inward is formed in the inner circumference of the lower end portion of the skirt portion 32. Then, when the lid body 30 is opened after the lid body 30 is once attached (attached) to the inner plug 10, the locking flap portion 46 is locked to the locking protrusion 25 of the inner plug 10. It is cut by the weakening portion 47 of the skirt portion 32, and the portion below the weakening portion 47 is left on the inner plug 10 side so that the lid 30 can be visually confirmed and confirmed that the lid 30 has been opened in the past. ing.

A stopper engaging portion 36 and a sound-repellent protrusion 37 are formed at a position below the tubular portion 34 of the lid 30 so as to overlap the tubular portion 34 in a plan view. The stopper engaging portion 36 is formed so as to be inclined in a saw blade shape when viewed from the side, and when the lid 30 is closed, the stopper engaging portion 36 abuts and engages with the stopper portions 19 (19A, 19B) of the inner plug 10. (Matching), which regulates the closing position of the lid 30. The stopper engaging portion 36 also has a relatively long inclined surface in the circumferential direction (about 90 when the tubular portion 34 of the lid 30 is viewed from below), similarly to the stopper portions 19 (19A, 19B) of the inner plug 10. A first stopper engaging portion 36A having an angle range of degrees) and a relatively short inclined surface in the circumferential direction (an angle range of less than 45 degrees when the tubular portion 34 of the lid 30 is viewed from below). Two second stopper engaging portions 36B are provided on the opposite sides of the tubular portion 34 when viewed from below (one pair).

The sound-repellent protrusions 37 are provided at intervals of 180 degrees with respect to the circumferential direction in the lower portion of the tubular portion 34 of the lid 30, that is, two (pair) are provided. The sound-repellent protrusion 37 projects downward from the tubular portion 34 of the lid 30, while both sides of the sound-repellent protrusion 37 in the lower portion of the tubular portion 24 in the circumferential direction are largely cut out upward (cutouts 38A, 38B). ), As a result, the sound-repellent protrusion 37 is formed in the tubular portion 34 of the lid 30 so as to be easily elastically deformed in the circumferential direction and the radial direction.

Further, the portion between the notch 38A and the second stopper engaging portion 36B, which is one of the large notches adjacent to the sound repellent protrusion 37, has a horizontal notch 39 which is slightly notched upward at the same depth. It is formed. In this embodiment, as shown in FIG. 9 and the like, the first thick wall extending upward from the portion corresponding to the lowermost top of the first stopper engaging portion 36A in the tubular portion 24 of the lid body 30. A portion 41 is formed, and a second thick portion 42 extending upward from a portion above the sound-repellent protrusion 37 in the tubular portion 24 of the lid 30 is formed, but the present invention is not limited to this configuration.

Further, in this embodiment, when the lid 30 is opened, it rotates counterclockwise (counterclockwise) with respect to the inner plug 10, and when the lid 30 is closed, it rotates clockwise (right) with respect to the inner plug 10. The male screw portion 17 and the female screw portion 33 are formed so as to rotate in a clockwise direction. Then, when the sound-repellent protrusion 20 of the inner plug 10 rotates the lid 30 in the closing direction in a plan view, the closer to the nozzle portion 15 of the inner plug 10 in the sound-repellent protrusion 37 (that is, the inner circumference). The shape is such that it is inclined so that it abuts later (on the side). In this embodiment, the sound-repellent protrusion 20 is formed so as to extend in a direction (tangential direction) in contact with the nozzle portion 15 of the inner plug 10 in a plan view.

In the above configuration, when the lid 30 is attached to the inner plug 10 and rotated in the closing direction of the lid 30, the lid 30 descends relative to the inner plug 10 and the lid 30 is lowered in the vertical direction. The stopper engaging portion 36 (36A, 36B) and the sound-repellent protrusion 37 of the inner plug 10 are relatively close to the stopper portion 19 (19A, 19B) of the inner plug 10 and the sound-repellent protrusion 20 (see FIG. 9: Note). In FIGS. 9 to 14, the outer peripheral top plate portion 31 and the skirt portion 32 are omitted from the tubular portion 34 of the lid 30). Then, when the lid 30 is rotated to the front of the completely closed position, as shown in FIGS. 10 to 12, the sound-repellent protrusion 37 formed at the lower part of the tubular portion 34 of the lid 30 becomes an inner plug. It abuts on the sound-repellent protrusion 20 formed in 10 and is elastically deformed, and emits a sound when passing over the sound-repellent protrusion 20. Further, when the lid body 30 is rotated to a completely closed position, as shown in FIGS. 13 and 14, the stopper engaging portions 36 (36A, 36B) of the lid body 30 are replaced with the stopper portions 19 (19A, 19A, of the inner plug 10). The lid is restricted from further rotating in contact with 19B) and is maintained in a well-closed state.

In this case, the stopper engaging portions 36 (36A, 36B) and the sound-repellent protrusions 37 are formed in the lower portion of the tubular portion 34 of the lid 30 at a position overlapping the tubular portion 34 in a plan view. Stoppers 19 (19A, 19B) that regulate the closing position of the lid 30 and sound repellency at positions of the stopper 10 that overlap the tubular portion 34 of the lid 30 in a plan view when the lid 30 is closed. Since the sound-repellent protrusion 20 that generates a sound when it comes into contact with the protrusion 37 and gets over it is provided, the stopper engaging portion 36 (36A, 36B), the stopper portion 19 (19A, 19B), and the sound-repellent protrusion Even if the 37 and the sound-repellent protrusion 20 are provided, they can be arranged within the range in which the tubular portion 34 is provided in a plan view. Therefore, the space for providing the stopper engaging portion 36 (36A, 36B), the stopper portion 19 (19A, 19B), the sound-repellent protrusion 37, and the sound-repellent protrusion 20 can be minimized in the radial direction, and by extension, the space is minimized. Even when the diameter of the inner plug 10 or the lid 30 is relatively small, it can be dealt with.

Further, the lid 30 is manufactured by injecting a resin melted at a high temperature into the space inside the mold and then cooling it by using an injection molding mold as shown in FIG. However, as shown in FIG. 15 as a comparative example of the lid body, a mold was used when the sounding protrusion 51 was provided on the lid body at a position protruding outward in the radial direction from the tubular portion 34. In the manufacturing process, as shown in FIG. 16, when the molten resin is filled in the portion corresponding to the sounding protrusion 51, the air is compressed and generates heat due to the dead end of the space 51'in this portion, and the product part So-called gas burning is likely to occur. Therefore, in order to prevent such a problem from occurring, a so-called nesting 52 for venting gas must be separately provided so as to face the portion where the sound repellent protrusion 51 is filled, which in turn increases the manufacturing cost. It will lead to an increase. In FIG. 16, 53 is an upper mold, 54 is a lower mold, 55 is a screw mold (screw core), 56 is an inner mold, and the screw mold (screw core) 55 and the inner mold 56 are after manufacturing. It is detached downward from the lower mold 54 while rotating integrally in the circumferential direction.

On the other hand, when the sound repellent protrusion 37 and the stopper engaging portion 36 (36A, 36B) are formed at a position overlapping the tubular portion 34 in a plan view as in the present invention, FIG. As shown in, the sound-repellent protrusion 37 and the stopper engaging portions 36 (36A, 36B) (not shown) are connected to the space at the boundary between the screw mold (screw core) and the lower mold, so that gas can be released. It also has the advantage that the so-called nesting of the above is not required, and the manufacturing cost can be reduced. In FIG. 17, 53'is an upper mold, 54' is a lower mold, 55'is a screw mold (screw core), 56'is an inner mold, and the screw mold (screw core) 55'and the inner mold. After manufacturing, the mold 56'is detached downward from the lower mold 54 while integrally rotating in the circumferential direction.

Further, according to the above configuration, by projecting the sound-repellent protrusion 37 downward from the tubular portion 34 of the lid 30, the sound-repellent protrusion 37 does not spread outward (outer diameter direction), and the sound-repellent protrusion 37 does not spread outward (outer diameter direction). The downward protrusion length of the 37 can be appropriately selected, so that when the sound-repellent protrusion 37 abuts on the sound-repellent protrusion 20 and elastically deforms before returning, a good response and sound are emitted. It becomes possible to correspond. Correspondingly, it is preferable that the sound-repellent protrusion 20 is formed in the inner plug 10 so as to project upward, whereby the sound-repellent protrusion 37 is good for the sound-repellent protrusion 20. It is possible to configure it so that it abuts on the surface and elastically deforms to produce a good response and sound.

Further, according to the above configuration, when the lid 30 is closed, the sound-repellent protrusion 37 of the lid 30 and the sound-repellent protrusion 20 of the inner plug 10 are overlapped in the vertical direction to repel sound. By forming the sound-repellent protrusion 20 of the inner plug 10 in the region corresponding to the thickness direction of the portion 34, it becomes difficult to close the lid 30 or the contact is poor even if the overlapping dimensions are not strictly specified at this time. Therefore, it is possible to minimize the possibility that the response will be lost or the sound will not be produced. Further, even when the container 2 is continuously used, the degree of wear of the stopper engaging portion 36 (36A, 36B) of the lid 30 and the sound repellent protrusion 37 and the stopper portion 19 (19A, 19B) of the inner plug 10 and the sound repellent protrusion It is possible to make the degree of wear of the portion 20 substantially the same, and it is possible to prevent the above-mentioned problems. Further, the same defect is less likely to occur due to the radial deformation of the lid 30 and the manufacturing error. Thereby, the reliability of the cap 1 and the container 2 can be improved.

Further, the sound-repellent protrusion 20 is tilted so as to come into contact with the inner plug 10 closer to the nozzle portion 15 when the lid 30 is rotated in the closing direction in a plan view. According to this configuration, when the lid 30 is closed, the sound-repellent protrusion 37 of the lid 30 comes into contact with the sound-repellent protrusion 20 of the inner plug 10 and then gradually deforms inward while the sound-repellent protrusion 37. Since it always gets over the upper part of 20, it is possible to surely generate a relatively large response and sound at this time. As a result, it is possible to satisfactorily convey that the lid 30 has been substantially rotated to the closing position, and reliability can be improved. On the other hand, when the lid 30 is opened, the sound-repellent protrusion 37 of the lid 30 comes into contact with the sound-repellent protrusion 20 of the inner plug 10 and then gradually deforms outward while the upper portion of the sound-repellent protrusion 20. Will be overcome. That is, the lid body 30 was opened more than when the lid body 30 was closed, and the height over which the sound repellent protrusion 20 of the inner plug 10 was overcome by the sound repellent protrusion 37 of the lid body 30 was smaller than when the lid body 30 was closed. Since it is overcome in the state, it is possible to make the response and the generation of sound smaller than when closing, which improves convenience.

That is, when the sound-repellent protrusion of the inner plug is formed so as to extend in the radial direction, the same response is given both when the lid is closed and when the lid is opened. According to this, there is no such thing. When the lid is closed when the side surface of the sound-repellent protrusion of the lid is formed along the radial direction of the nozzle portion and the sound-repellent protrusion of the inner plug is formed so as to extend in the radial direction. This is because the sound-repellent protrusion of the lid gets over the upper part of the sound-repellent protrusion in the state where the entire portion corresponding to the total thickness on the side surface of the sound-repellent protrusion is in contact with the sound-repellent protrusion of the inner plug. In this case, a large frictional force is generated and a considerably large force must be applied, which reduces convenience, but this is not the case with this configuration.

Further, according to the above configuration, the stopper engaging portions 36 (36A, 36B) of the lid 30 and the stopper portions 19 (19A, 19B) of the inner plug 10 are formed in a saw blade shape when viewed from the side, respectively. Therefore, when the lid 30 is completely closed, the stopper portion 19 (19A, 19B) is in good contact with the stopper engaging portion 36 (36A, 36B), and the position can be regulated.

Further, as in the embodiment of the present invention, the sound repellent protrusions 37 and the sound repellent protrusions 20 are provided at intervals of 180 degrees (that is, two) with respect to the circumferential direction at the lower part and the lower side of the tubular portion 34 of the lid 30. (1 pair)) It is preferable to provide it. By reducing the number of sound-repellent protrusions 37 and sound-repellent protrusions 20 in this way, for example, at a position below the tubular portion 15 of the lid 30, every 90 degrees with respect to the circumferential direction (that is, Compared with the case where four (two pairs) are provided, the structure of the mold can be made simpler, and the manufacturing cost can be reduced. However, the number is not limited to this, and it is possible to provide three or more sound-repellent protrusions 37 and sound-repellent protrusions 20.

Further, in the embodiment of the present invention, as shown in FIG. 9, the first one extending upward from the portion corresponding to the lowermost top of the first stopper engaging portion 36A in the tubular portion 24 of the lid 30. A thick-walled portion 41 is formed, and a second thick-walled portion 42 extending upward from a portion above the sound-repellent protrusion 37 in the tubular portion 24 of the lid 30 is formed. As a result, in the case of manufacturing the lid 30 using the mold, the screw mold (screw core) 55'and the inner mold 56' are integrally rotated in the circumferential direction after being manufactured, and are lowered from the lower mold 54. It is possible to prevent the lid body 30 from rotating together with the screw mold (screw core) 55'when the lid body 30 is detached from the screw mold, and the product can be manufactured satisfactorily. Further, since the first thick portion 41 and the second thick portion 42 are formed, there is an advantage that the rigidity of the lid 30 can be increased.

Further, in the embodiment of the present invention, the case where the lid 30 has a relatively large diameter has been described, but the present invention is not limited to this, and the lid 30 also has a diameter substantially the same as that of the tubular portion. The above configuration is applicable.

1 Cap 2 Container 10 Inner plug 11 Injection outlet 15 Nozzle part 16 Inner cylinder part 17 Male thread part (screw part)
18 Steps 19 Stopper 19A 1st stopper 19B 2nd stopper 20 Sound repellent protrusion 21 Concave shape 30 Lid 33 Female thread (thread)
34 Cylindrical part 36 Stopper engaging part 36A 1st stopper engaging part 36B 2nd stopper engaging part 37 Sound repellent protrusions 38A, 38B Notch 41 1st thick part 42 2nd thick part

Claims (5)

A cap that has an inner plug attached to a container and has a spout, and a rotatable lid that is placed on the inner plug to open and close the spout of the inner plug, and is attached to the mouth of the container.
The inner plug is provided with a nozzle portion having a spout formed at the upper end and a threaded portion formed at the outer periphery thereof.
The lid body is provided with a tubular portion having a threaded portion screwed to the threaded portion of the inner plug formed on the inner circumference thereof.
A stopper engaging portion and a sound-repellent protrusion are formed at a position of the lower portion of the tubular portion of the lid body that overlaps the tubular portion in a plan view.
In the inner plug, a stopper portion that engages with the stopper engaging portion and regulates the closing position of the lid body at a position where the lid body overlaps the tubular portion of the lid body in a plan view when the lid body is closed. The cap is characterized by being provided with a sound-repellent protrusion that generates sound by the sound-repellent protrusion when it comes into contact with the sound-repellent protrusion and gets over it. The cap according to claim 1, wherein the sound-repellent protrusion projects downward from the tubular portion of the lid. The cap according to claim 1 or 2, wherein the sound-repellent protrusion is formed in a shape protruding upward in the inner plug. The cap according to any one of claims 1 to 3 , wherein the stopper engaging portion of the lid and the stopper portion of the inner plug are each formed in a saw blade shape when viewed from the side. .. The cap according to any one of claims 1 to 4 , wherein the sound-repellent protrusion is provided at every 180 degrees with respect to the circumferential direction in the lower portion of the tubular portion of the lid.

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