JP2008179415A - Protective cap for solid material, container for solid material using the same, and cushioning member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protective cap for a solid material which is not bulky and maintains an extended state in accordance with the size of a gap above the solid materials stored in a container and prevents the breakage or damage of the solid material and prevents the solid material from dropping outside from the inside of the container at the same time when taking it out. <P>SOLUTION: The protective cap includes a cylindrical protective cap body which is detachably mounted to a mouth part of the container and a protective cushioning part which constitutes the bottom part of the protective cap body. The protective cushioning part is extended from the lower end of the protective cap body to the inner circumferential side and includes a bellows-shaped extension and contraction adjusting part which is concentrically formed in a horizontal direction and a central end part located at the central part of the extension and contraction adjusting part. The extension and contraction adjusting part can be extended/contracted between a folded position where the extension and contraction part is in a folded state at a horizontal position and a protective cushioning position where the extension and contraction adjusting part is in an extended state in such a way as to project downward from the protective cap body in an extended state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a solid protective cap for preventing a solid from moving in the container and preventing damage to the solid in a container containing the solid, and a solid container using the same About.

  In addition, the present invention includes a buffer material for expanding and contracting a single adjustment part that expands and contracts in multiple stages, and fills a gap in a box or the like, and a plurality of adjustment parts that extend and contract in multiple stages. The present invention relates to a cushioning material that is a plate-like cushioning material and can be used in accordance with its shape, for example, as a cushioning material for specially shaped bottles or wine glasses.

  Conventionally, for example, in a container containing solids such as tablets, capsules and other chemicals, and granular confectionery such as chocolate, candy, and gum, the solids move in the container during transportation and storage. As a method to prevent damage and damage to solid materials, cushioning material made of foamed resin, cushioning material rolled up from a plastic sheet such as polyethylene, vinyl cushioning material filled with air, net-shaped cushioning A method of inserting a material or the like into a container has been proposed.

  However, in order to fill these shock absorbing materials into the container as the shock absorbing material, the size of the shock absorbing material must be adjusted according to the size of the space above the solid matter accommodated in the container. And it will take time.

  In addition, the operation of taking out these buffer materials from the inside of the container during use is complicated, and when taking out the buffer material from the container, solid materials may be spilled from the inside of the container to the outside at the same time. is there.

For this reason, Patent Document 1 (Japanese Utility Model Publication No. 58-94679) and Patent Document 2 (Japanese Patent Application Laid-Open No. 2003-63566) propose a bellows-shaped packaging cushioning material that can be expanded and contracted.
For example, in the cushioning material for packaging of Patent Document 2, a cushioning material 100 having a structure as shown in FIG. 27 is disclosed.

  The cushioning material 100 includes a cylindrical portion 102. The cylindrical portion 102 is fitted to the mouth portion 106 of the container 104, and extends downward from the head portion 108 in the axial direction. The body portion 112 is formed with a plurality of bellows 111 that can be expanded and contracted, and a bottom portion 114 that extends from the body portion 112 and closes one end of the tubular portion 102.

  Accordingly, when the cushioning material 100 is inserted into the mouth portion 106 of the container 104, the bellows 111 can be expanded and contracted in the axial direction, so that the size of the gap 118 above the solid matter 116 accommodated in the container 104 is large. It can be deformed according to and can fill the gap.

Further, since the body portion 112 has a shape that is reduced in diameter toward the tip, when the buffer material 100 is taken out from the container 104, the solid material is prevented from spilling out of the container 104 together with the buffer material 100 at the same time. It has come to be.
Japanese Utility Model Publication No. 58-94679 JP 2003-63566 A

  However, in the conventional stretchable bellows-shaped packaging cushioning material 100 as disclosed in Patent Documents 1 and 2, the body 112 protrudes downward from the head 108 even when the bellows 111 is folded. In this state, it becomes bulky during storage and transportation.

  Further, since it does not have a stopper function for maintaining the stretched state of the bellows 111 in accordance with the size of the gap 118 at the top of the solid material 116 accommodated in the container 104, the solid material 116 may be affected by vibration during transportation. When an upward force is applied, the bellows 111 is in a folded state, a gap is generated, and the movement of the solid substance 116 in the container 104 cannot be completely suppressed, and the solid substance 116 is not allowed to move. There is a risk of damage.

  In addition, if the size of the irregularities of the bellows 111 is not set according to the size of the solid material 116 accommodated in the container 104, the solidities are formed on the irregularities of the bellows 111 when the cushioning material 100 is taken out from the container 104. The object 116 is caught, and the solid material may spill out from the inside of the container 104 together with the cushioning material 100, so that it cannot be used for the solid material 116 having a different size and is not versatile.

  When the bellows 111 is formed in the vertical direction in the body 110 as described above, the unevenness of the bellows 111 becomes an obstacle, so that an injection mold cannot be used and it is difficult to perform injection molding (injection molding). Therefore, it will be manufactured by blow molding, which is expensive and inferior in molding accuracy.

  In view of the current situation, the present invention does not become bulky during storage, transportation, and the like, and further, a stopper function that maintains the stretched state according to the size of the space above the solid matter contained in the container With this, even when an upward force is applied by the solid matter due to vibration during transportation, etc., no gap is generated, and the movement of the solid matter in the container can be completely suppressed, It is an object of the present invention to provide a solid protective cap capable of preventing breakage and damage of a solid and a solid container using the same.

  In addition, the present invention prevents the solid matter from spilling out of the container at the same time when taking out, and can be used for solid materials of different sizes, has versatility and reduces cost. An object of the present invention is to provide a protective cap for solids that can be used and a container for solids using the same.

  Furthermore, the present invention can perform injection molding (injection molding) using an injection mold, reduce costs, and have a solid protective cap excellent in molding accuracy, and for a solid using the same The purpose is to provide a container.

  In addition, the present invention includes a buffer material for expanding and contracting a single adjustment part that expands and contracts in multiple stages, and fills a gap in a box or the like, and a plurality of adjustment parts that extend and contract in multiple stages. An object of the present invention is to provide a cushioning material that is a plate-like cushioning material and can be used in accordance with its shape, for example, as a cushioning material for specially shaped bottles or wine glasses.

The present invention has been invented in order to achieve the above-described problems and objects in the prior art, and the solid matter protective cap of the present invention is provided in the mouth of the container containing the solid matter. A protective cap for solid matter for protecting the solid matter contained in
Provided with a protective buffer that forms the bottom,
The protective buffer is
A bellows-shaped expansion / contraction adjustment part that extends from the lower end to the inner peripheral side and is formed concentrically in a horizontal direction,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position so as to form a bottom surface;
In a state where the expansion / contraction adjustment portion is extended so as to protrude downward in a stretched state, the diameter gradually decreases toward the distal end side, and a protective buffer position that protects the solid matter stored in the container,
It is characterized by being configured to be stretchable between.

The protective cap for solids of the present invention is
A cylindrical protective cap body detachably attached to the mouth of the container;
A protective buffer portion constituting the bottom of the protective cap body,
The protective buffer is
An accordion-shaped expansion / contraction adjustment portion extending from the lower end of the protective cap body to the inner peripheral side and formed concentrically in the horizontal direction;
A central tip located at the center of the expansion / contraction adjustment part;
With
The protective buffer is
As the bottom of the protective cap body, a folding position in which the expansion / contraction adjustment part is folded in a horizontal position so as to form a bottom surface;
A protection buffering position for protecting the solid matter stored in the container with the diameter gradually decreasing toward the distal end side in a state where the expansion / contraction adjustment portion is extended so as to protrude downward from the protective cap body. ,
It is characterized by being configured to be stretchable between.

  By configuring in this way, the expansion / contraction adjustment part of the protection buffer part extends from the lower end of the protection cap body to the inner peripheral side, and has a bellows shape formed concentrically in the horizontal direction. The adjustment portion is folded in the horizontal position, and the bottom surface is formed as the bottom portion of the protective cap body.

  Therefore, in the folded position, the expansion / contraction adjustment unit is folded in the horizontal position, and therefore it is not bulky during storage, transportation, and the like. In addition, when the expansion / contraction adjustment unit is folded in the horizontal position, a force perpendicular to the expansion / contraction direction of the normal bellows is required to extend the expansion / contraction adjustment unit. Can be maintained.

  In addition, the expansion / contraction adjustment part has a bellows shape that extends from the lower end of the protective cap body to the inner peripheral side and is formed concentrically in the horizontal direction. Therefore, once the expansion / contraction adjustment part is extended, it is folded again. In order to achieve this, a force in a direction perpendicular to the expansion / contraction direction of the normal bellows is required, and therefore a certain amount of force is required.

  Therefore, it has a stopper function to maintain the stretched state according to the size of the upper space of the solid matter contained in the container, and this causes the upward force by the solid matter due to vibration during transportation etc. In this case, the folded state is not easily folded, no gap is generated, the movement of the solid matter in the container can be completely suppressed, and the damage to the solid matter can be prevented.

  In addition, at the protective buffer position, the diameter gradually decreases toward the tip side, so that solid matter does not get caught on the bellows part as in the conventional case, and at the same time, the solid matter spills out of the container. There is no end.

Moreover, since there are no bellows-like irregularities as in the prior art, it can be used for solids of different sizes, has versatility, and can reduce costs.
In addition, the bellows-shaped expansion / contraction adjustment section is present in the horizontal direction instead of the bellows in the vertical direction as in the prior art, so the bellows shape does not get in the way, and an injection mold consisting of a pair of upper and lower molds Can be injection-molded (injection molding) in the folded position, increasing the number of cases per case and eliminating the need for a folding process after molding, reducing costs and molding It is possible to provide a solid-state protective cap excellent in accuracy.

Moreover, the protective cap for solids of the present invention is characterized in that the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion are formed substantially the same from the central tip end side to the outer peripheral side. .
By configuring in this way, when extending the expansion / contraction adjustment section so as to protrude downward from the protective cap body, the force for extending the central bellows-shaped expansion / contraction adjustment section and the outer peripheral side Because the force to extend the bellows-shaped expansion / contraction adjustment part is almost uniform, the bellows-type expansion / contraction adjustment part from the center side to the outside extends almost uniformly to protect the solid matter contained in the container It can be a protective buffer position.

  Note that, as described above, the bellows depth L and the bellows formation angle α can be gradually increased or decreased in the middle, or can be any combination thereof, in addition to being substantially uniform. Of course.

Further, in the solid matter protective cap of the present invention, the bellows depth L of the bellows-shaped expansion / contraction adjusting portion is gradually larger at the outer peripheral side of the bellows depth L than the bellows depth L at the center tip side. As well as forming
The bellows forming angle α of the bellows-shaped expansion / contraction adjusting portion is formed such that the bellows forming angle α on the center front end side is gradually larger than the bellows forming angle α on the outer peripheral side.

  By configuring in this way, as described above, when the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion are formed substantially the same from the center tip portion side to the outer periphery side, Since the side, the center side, and the like are stretched regardless, it is not possible to obtain a solid material protective cap having a desired constant height (volume).

  On the other hand, by configuring as described above, the bellows depth L is small and the bellows formation angle α is large in the center-side bellows-shaped expansion / contraction adjustment section, so that the center-side bellows-shaped expansion / contraction adjustment is performed. The force for extending the portion is reduced, and in the bellows-shaped expansion / contraction adjustment portion on the outer peripheral side, the bellows depth L is large and the bellows formation angle α is small, and the bellows-shaped expansion / contraction adjustment portion on the outer peripheral side is extended. The force for increasing gradually increases.

As a result, the bellows-shaped expansion / contraction adjustment portion is gradually extended from the center side to the outer peripheral side, and a protective cap for solid matter having a desired constant height (volume) can be obtained.
Further, in the solid matter protective cap of the present invention, the bellows depth L of the bellows-shaped expansion / contraction adjustment portion is gradually larger at the central tip portion side than the bellows depth L at the outer peripheral side. As well as forming
The bellows forming angle α of the bellows-shaped expansion / contraction adjustment portion is formed such that the bellows forming angle α on the outer peripheral side is gradually larger than the bellows forming angle α on the center tip side.

  By configuring in this way, as described above, when the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion are formed substantially the same from the center tip portion side to the outer periphery side, Since the side, the center side, and the like are stretched regardless, it is not possible to obtain a solid material protective cap having a desired constant height (volume).

  On the other hand, by configuring as described above, in the bellows-shaped expansion / contraction adjustment unit on the outer peripheral side, the bellows depth L is small and the bellows formation angle α is large, and the bellows-shaped expansion / contraction adjustment unit on the outer peripheral side. In the most central bellows-shaped expansion / contraction adjustment section, the bellows depth L is large and the bellows formation angle α is small, and the central bellows-shaped expansion / contraction adjustment section is expanded. The force for increasing gradually increases.

As a result, the bellows-shaped expansion / contraction adjustment portion is gradually extended from the outer peripheral side to the center side, and a protective cap for solids having a desired constant height (volume) can be obtained.
Further, the solid material protective cap according to the present invention is characterized in that, in the folded position, the central tip is located at a position protruding downward.

  By configuring in this way, at the folding position, the central tip is located at a position protruding downward (that is, the lower limit position of the folding part), and the outer peripheral side is located at a position higher than the center side, so-called mortar shape (Convex shape when viewed from the opposite side, and so on).

  Thereby, in the bellows-shaped expansion / contraction adjustment part, it is possible to extend from the center part to the outer peripheral part or from the outer peripheral part to the central part more reliably than those in which the lower limit position of the folding part is flat. It becomes possible. In addition, even if it is in this mortar shape, it is also possible to exhibit a tablet buffering effect.

In the solid material protective cap of the present invention, a slit is formed in the protective buffer portion.
In this way, when the slit is formed in the protective buffer portion, for example, the bellows-shaped expansion / contraction adjustment portion, the slit portion becomes an interference portion when the bellows-shaped expansion / contraction adjustment portion is expanded and inflated. The force in the circumferential direction is absorbed, and the bellows-shaped expansion / contraction adjustment part is easily expanded and swelled.

  Also, for example, by inserting and installing a desiccant inside (inside) the solid matter protective cap of the present invention, the humidity inside the container can be controlled from this slit, and the solid matter can be moistened. It becomes possible to prevent.

  Further, the protective cap for solids of the present invention is configured such that the protective buffer position is a stepwise protective buffer position by adjusting the degree of expansion and contraction of the bellows-shaped expansion / contraction adjustment section. And

  In this way, the protective buffer position becomes a stepwise protective buffer position by adjusting the expansion / contraction degree of the bellows-shaped expansion / contraction adjustment portion, so that according to the amount of solid matter accommodated in the container, the remaining amount, Depending on the size of the gap in the upper part of the container, the protective buffer function is sufficiently exhibited.

The protective cap for solids of the present invention is
The expansion / contraction adjustment part is composed of a plurality of thick folding pieces,
These joints can be foldably connected to the joint between these folding pieces, the joint between the folding piece and the protective cap body, and the joint between the expansion adjustment part and the central tip. It is characterized by comprising a thin connecting portion.

  By configuring in this way, the plurality of thick folding pieces have mechanical strength, thereby preventing the solid matter contained in the container from moving and preventing damage and damage. By bending these thin connecting portions, the expansion / contraction adjustment portion of the protection buffer portion can be easily expanded and contracted between the folding position and the protection buffer position.

  Further, in the solid matter protective cap of the present invention, the connecting portion includes a bent portion so that the protective buffer portion can maintain these states at the folded position and the protected buffer position by the bent portion. It is configured.

  Thus, since the connecting portion includes a bent portion, the bent portion acts like a spring and can be held in a bent state and an extended state. These states can be reliably held at the protection buffer position.

  In addition, the spring effect of the bent portion of this connecting portion has the effect of deforming a plurality of thick folding pieces in the radial direction, and when installed in the container with the protective cap extended, or into the container Even when the protective cap is extended after mounting, an optimal buffering effect can be given to the solid matter.

Therefore, it has a stopper function to maintain the stretched state according to the size of the upper space of the solid matter contained in the container, and this causes the upward force by the solid matter due to vibration during transportation etc. In this case, the folded state is not easily folded, no gap is generated, the movement of the solid matter in the container can be completely suppressed, and the damage to the solid matter can be prevented.
Moreover, the protective cap for solid objects of the present invention is characterized in that the protective cap body is configured such that the diameter gradually decreases downward.

  This makes it easy to insert the protective cap for solids into the mouth of the container, and it can be fitted into the mouth of the container at the top of the main body of the protective cap to securely maintain the insertion state. Therefore, the solid matter can be prevented from being broken and damaged.

Further, the solid material protective cap of the present invention is characterized in that an air vent hole is formed at a central tip portion of the protective buffer portion.
Thus, since the air vent hole is formed in the center front end portion of the protection buffer portion, it becomes easy to insert the protective cap for solid matter into the mouth portion of the container.

Further, the solid material protective cap of the present invention is characterized in that an operating piece projecting on the inner peripheral side is formed at the upper end of the protective cap body.
In this way, the upper end of the protective cap body is formed with an operation piece protruding on the inner peripheral side, so that the operation piece is locked with a finger or the like and pulled upward, so that the solid material protective cap is removed. The operation of removing the container from the mouth is easy and convenient.

Moreover, the protective cap for solid objects of the present invention is characterized in that an upper end of the protective cap main body is provided with a collar projecting on the outer peripheral side and engaging with the mouth of the container.
With this configuration, the solid-state protective cap is locked to the mouth of the container by the flange that protrudes from the outer peripheral side of the upper end of the protective cap body. That is, the solid-state protective cap is attached to the mouth of the container. It can be set as the state fitted to the part.

Further, the flange portion protruding from the outer peripheral side of the upper end of the protective cap body can be in a fitted state supported by a jig or the like.
Then, in this state, the expansion / contraction adjustment part is extended so that it protrudes downward from the protective cap body by pushing the central tip part downward with a finger, an extrusion jig, etc. from above. It is possible to set the protection buffer position in a state where it is in a closed state, and it is easy to use and attach to the mouth of the container.

The solid-state protective cap of the present invention is characterized in that the protective cap body includes an axial bellows portion in which a plurality of axial bellows capable of expanding and contracting in the axial direction is formed.
By providing the axial bellows portion with the axial bellows portion formed with a plurality of axial bellows that can be expanded and contracted in the axial direction in this manner, the axial bellows portion is provided with cushioning properties in the axial direction. It can cope with large space capacity.
That is, when the amount of solid matter in the container, the remaining amount is large, and the space capacity is small, the bellows of the axial bellows portion is folded (contracted in the axial direction), and conversely When the amount of objects and the remaining amount are small and the space capacity is large, it can be dealt with by making the bellows of the axial bellows portion extend in the axial direction.

  In addition, by operating the bellows of the axial bellows portion in this way, it is possible to cope with the space capacity in the container, so that the protective caps for solids of different sizes depending on the amount of solids in the container In addition, containers having the same diameter and different capacities can be accommodated by using the same solid material protective cap.

In the solid material protective cap of the present invention, a plurality of axial slits are formed in the protective cap body.
With this configuration, the protective cap body itself is curved in the inner diameter direction, thereby providing cushioning properties in the axial direction. Therefore, a larger space capacity can be accommodated in the container.

  That is, when the amount of solid matter in the container, the remaining amount is large, and the space capacity is small, the protective cap body itself formed with the slit is bent in the inner diameter direction (contracted in the axial direction). On the contrary, when the amount of solid matter in the container and the remaining amount are small and the space capacity is large, the protective cap body itself formed with the slit is reduced in the axial direction by reducing the degree of bending in the inner diameter direction. This can be dealt with by making it in an expanded state.

  In addition, by operating the protective cap body formed with slits in this way, it is possible to cope with the space capacity in the container, so that it can be used for solids of different sizes depending on the amount of solids in the container. It is not necessary to prepare a protective cap, and it is possible to cope with containers of the same diameter and different capacities by using the same solid protective cap.

The solid material protective cap of the present invention is characterized in that a protrusion is formed on the outer periphery of the protective cap body.
In the solid matter protective cap of the present invention, the protrusion is a rib extending in the axial direction.

  With this configuration, this protrusion, particularly the axial rib, functions as a retaining rib so that the protective cap does not come off and is difficult to loosen. Therefore, when a protective cap for solids is attached to the mouth of the container, solids such as tablets are shaken by vibrations during transportation until the outer screw cap is closed, and the protective cap is placed in the container. Extruding to the mouth side of the can be prevented.

Further, since this rib is in line contact with the wall surface of the container mouth portion, it is easy to attach the protective cap for solid matter into the container mouth portion, and it is easy to take out from the container mouth portion.
The solid material protective cap of the present invention is characterized in that a horizontal receiving portion is formed at a joint portion between the protective cap body and the bellows-shaped expansion / contraction adjusting portion.

By comprising in this way, the horizontal receiving part of the junction part of a protection cap main body and a bellows-shaped expansion-contraction adjustment part can be made into the state supported with the jig | tool.
Then, in this state, the expansion / contraction adjustment part is extended so that it protrudes downward from the protective cap body by pushing the central tip part downward with a finger, an extrusion jig, etc. from above. It is possible to set the protection buffer position in a state where it is in a closed state, and it is easy to use and attach to the mouth of the container.

Further, the solid matter protective cap of the present invention is a solid matter protective cap formed by injection molding for protecting the solid matter contained in the container at the mouth of the container containing the solid matter,
Provided with a protective buffer that forms the bottom,
The protective buffer portion is configured to have an uneven portion only in the injection molding direction.

Moreover, the protective cap for solids of the present invention comprises a cylindrical protective cap body that is detachably attached to the mouth of the container,
The uneven part of the protective buffer part is
An accordion-shaped expansion / contraction adjustment portion extending from the lower end of the protective cap body to the inner peripheral side and formed concentrically in the horizontal direction;
A central tip located at the center of the expansion / contraction adjustment part;
With
The protective buffer is
As the bottom of the protective cap body, a folding position in which the expansion / contraction adjustment part is folded in a horizontal position so as to form a bottom surface;
A protection buffering position that protects the solid agent contained in the container with a diameter gradually decreasing toward the distal end side in a state where the expansion / contraction adjustment portion is extended so as to protrude downward from the protective cap body. ,
It is characterized by being configured to be stretchable between.

  By configuring in this way, the protective buffer portion that forms the bottom of the protective cap body has a concavo-convex portion only in the injection molding direction, so that the concavo-convex portion does not get in the way during injection molding, and the injection mold is It can be used for injection molding (injection molding), mass production is possible, and cost can be reduced.

Further, in the protective cap for solids of the present invention, the uneven portion of the protective buffer portion is
A bellows-shaped expansion / contraction adjustment part that extends from the lower end to the inner peripheral side and is formed concentrically in a horizontal direction,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position so as to form a bottom surface;
In a state where the expansion / contraction adjustment portion is extended so as to protrude downward in a stretched state, the diameter gradually decreases toward the distal end side, and a protective buffer position that protects the solid matter stored in the container,
It is characterized by being configured to be stretchable between.

  By comprising in this way, injection molding (injection molding) can be performed as mentioned above, mass production is possible, cost can be reduced, and the following effects can be achieved.

In addition, the shock-absorbing material of the present invention is characterized in that at least one surface portion includes a protective shock-absorbing part having a telescopic adjustment part that can be stretched and contracted.
Further, the cushioning material of the present invention is characterized in that the expansion / contraction adjustment portion is configured to be adjustable in multiple stages.

Further, the cushioning material of the present invention is characterized in that one or more of the expansion / contraction adjusting portions are formed in each protective cushioning portion.
Further, the cushioning material of the present invention includes a bellows-shaped expansion / contraction adjustment portion that is formed in the horizontal direction in a concentric manner, with the expansion / contraction adjustment portion extending on the inner peripheral side,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position;
A protection buffering position for protecting an object to be protected in a state in which the expansion / contraction adjustment portion is extended so as to protrude in an extended state;
This configuration makes it possible to expand and contract with a single adjustment part that expands and contracts in multiple stages, and a buffer for filling a gap in a box or the like. A plate-shaped cushioning material having a plurality of adjustment parts that expand and contract in multiple stages, and can be used according to its shape, for example, as a cushioning material for specially shaped bottles or wine glasses A cushioning material can be provided.

  According to the present invention, the expansion / contraction adjustment portion of the protection buffer portion extends from the lower end of the protection cap body to the inner peripheral side and has a bellows shape formed concentrically in the horizontal direction. Is folded into a horizontal position, and a bottom surface is formed as the bottom of the protective cap body.

  Therefore, in the folded position, the expansion / contraction adjustment unit is folded in the horizontal position, and therefore it is not bulky during storage, transportation, and the like. Moreover, when the expansion / contraction adjustment unit is folded in the horizontal position, a force perpendicular to the expansion / contraction direction of the normal bellows is required to extend the expansion / contraction adjustment unit. Can be maintained.

  In addition, the expansion / contraction adjustment part has a bellows shape that extends from the lower end of the protective cap body to the inner peripheral side and is formed concentrically in the horizontal direction. Therefore, once the expansion / contraction adjustment part is extended, it is folded again. In order to achieve this, a force perpendicular to the expansion / contraction direction of the normal bellows is required, and therefore a certain amount of force is required.

Therefore, it has a stopper function to maintain the stretched state according to the size of the upper space of the solid matter contained in the container, and this causes the upward force by the solid matter due to vibration during transportation etc. In this case, it will not be folded easily, no gap will be generated, the movement of the solid material in the container can be completely suppressed, and the damage to the solid material can be prevented. At the buffer position, the diameter gradually decreases toward the tip side, so that solid matter does not get caught on the bellows part as before, and at the same time, solid matter spills out from the inside of the container. There is no.

Moreover, since there are no bellows-like irregularities as in the prior art, it can be used for solids of different sizes, has versatility, and can reduce costs.
Furthermore, there is a bellows-shaped expansion / contraction adjustment section in the horizontal direction, instead of a bellows in the vertical direction as in the prior art, so an injection molding (injection) using an injection mold consisting of a pair of upper and lower molds. Molding), the cost can be reduced, and a protective cap for solids having excellent molding accuracy can be provided.

  Further, according to the present invention, when extending the expansion / contraction adjustment part so as to protrude downward from the protective cap body, the force for extending the central bellows-shaped expansion / contraction adjustment part and the outer peripheral side Because the force to extend the bellows-shaped expansion / contraction adjustment part is almost uniform, the bellows-type expansion / contraction adjustment part from the center side to the outside extends almost uniformly to protect the solid matter contained in the container It can be a protective buffer position.

  As described above, the bellows depth L and the bellows formation angle α can be gradually increased or decreased in the middle, or can be any combination thereof, in addition to being substantially uniform. Thereby, it can be set as the protection buffer position which protects the solid substance accommodated in the container.

  Further, according to the present invention, in the most central bellows-shaped expansion / contraction adjustment section, the bellows depth L is small and the bellows formation angle α is large, and the central bellows-shaped expansion / contraction adjustment section is extended. The force is reduced, and the bellows-shaped expansion / contraction adjustment portion on the outer peripheral side has a large bellows depth L and the bellows formation angle α decreases, and the force for extending the bellows-shaped expansion / contraction adjustment portion on the outer peripheral side is gradually increased. Become.

As a result, the bellows-shaped expansion / contraction adjustment portion is gradually extended from the center side to the outer peripheral side, and a protective cap for solid matter having a desired constant height (volume) can be obtained.
Furthermore, according to the present invention, in the bellows-shaped expansion / contraction adjustment section on the outer peripheral side, the bellows depth L is small and the bellows formation angle α is large, and the force for extending the bellows-shaped expansion / contraction adjustment section on the outer peripheral side. The bellows depth L is large and the bellows formation angle α is small in the most central bellows-shaped expansion / contraction adjustment section, and the force for extending the central bellows-shaped expansion / contraction adjustment section gradually increases. Become.

As a result, the bellows-shaped expansion / contraction adjustment portion is gradually extended from the outer peripheral side to the center side, and a protective cap for solids having a desired constant height (volume) can be obtained.
Further, the solid material protective cap according to the present invention is characterized in that, in the folded position, the central tip is located at a position protruding downward.

  By configuring in this way, at the folding position, the central tip is located at a position protruding downward (that is, the lower limit position of the folding part), and the outer peripheral side is located at a position higher than the center side, so-called mortar shape It becomes.

  Thereby, in the bellows-shaped expansion / contraction adjustment part, it is possible to extend from the center part to the outer peripheral part more reliably than in the case where the lower limit position of the folding part is flat. In addition, even if it is in this mortar shape, it is also possible to exhibit a tablet buffering effect.

  Further, according to the present invention, since the slit is formed in the bellows-shaped expansion / contraction adjustment part, when the bellows-shaped expansion / contraction adjustment part is extended and inflated, the slit part becomes an interference part, The force in the circumferential direction is absorbed, and the bellows-shaped expansion / contraction adjustment part is easily expanded and swelled.

  Also, for example, by inserting and installing a desiccant inside (inside) the solid matter protective cap of the present invention, the humidity inside the container can be controlled from this slit, and the solid matter can be moistened. It becomes possible to prevent.

  In addition, according to the present invention, the flange that protrudes from the outer peripheral side of the upper end of the protective cap body, and the horizontal receiving portion of the joint portion between the protective cap body and the bellows-shaped expansion / contraction adjustment portion supported by a jig or the like. It can be in a combined state.

  Then, in this state, the expansion / contraction adjustment part is extended so that it protrudes downward from the protective cap body by pushing the central tip part downward with a finger, an extrusion jig, etc. from above. It is possible to set the protection buffer position in a state where it is in a closed state, and it is easy to use and attach to the mouth of the container.

In addition, according to the present invention, the protrusions, particularly the axial ribs, function as retaining ribs, and the protective cap does not come off, making it difficult to loosen. Therefore, when a protective cap for solids is attached to the mouth of the container, solids such as tablets are shaken by vibrations during transportation until the outer screw cap is closed, and the protective cap is placed in the container. Extruding to the mouth side of the can be prevented.

Further, since this rib is in line contact with the wall surface of the container mouth portion, it is easy to attach the protective cap for solid matter into the container mouth portion, and it is easy to take out from the container mouth portion.
Further, according to the present invention, since the protective buffer portion constituting the bottom portion of the protective cap body has the uneven portion only in the injection molding direction, the uneven portion does not interfere with the injection molding, and the injection mold is It can be used for injection molding (injection molding), mass production is possible, and cost can be reduced.

  Furthermore, according to the present invention, the adjustment part that expands and contracts in a multistage manner is stretched and contracted alone, and a buffer material for filling the gap in the box or the like, and a plurality of adjustment parts that expand and contract in a multistage manner are arranged. For example, as a cushioning material for a specially shaped bottle or wine glass, a cushioning material that can be used in accordance with the shape can be provided.

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a longitudinal sectional view of the solid protective cap of the present invention in the folded position, FIG. 2 is a partially enlarged sectional view of the solid protective cap of FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view of the protective cap for objects in the direction of the arrow A, FIG. 4 is a vertical sectional view of the solid protective cap in FIG. 1 in the protective buffer position, and FIG. It is a longitudinal cross-sectional view which shows the state inserted in the opening part of the container which accommodated.

1-5, the code | symbol 10 has shown the protective cap for solid objects of this invention on the whole.
As shown in FIG. 5, the solid protective cap 10 is detachably attached to the mouth 16 of the container 14 containing the solid 12.

  Examples of the solid material 12 include chemicals such as tablets and capsules, and solid materials such as granular confectionery such as chocolate, candy, and gum, but are not limited thereto. Absent.

As shown in FIG. 1, the solid protective cap 10 includes a cylindrical protective cap main body 18 that is detachably attached to the mouth 16 of the container 14.
That is, the protective cap body 18 is detachably fitted to the inner wall of the mouth portion 16 of the container 14, and the outer diameter of the protective cap body 18 is substantially the same as the inner diameter of the mouth portion 16 of the container 14, It is set to be slightly larger.

  Further, in this embodiment, the outer diameter of the protective cap body 18 is configured so that its diameter gradually decreases slightly from the upper end portion 20 of the protective cap body 18 toward the lower end portion 22.

  As a result, when the protective cap body 18 is inserted into the mouth portion 16 of the container 14, the frictional force between the inner wall of the mouth portion 16 and the outer wall of the protective cap body 18 is reduced, and the protective cap body 18 is smoothly inserted. Can be done.

The length of the protective cap body 18 in the axial direction is not particularly limited, and can be set as appropriate according to the size of the mouth portion 16 of the container 14.
Furthermore, the thickness of the lower end portion 22 of the protective cap body 18 is increased, thereby increasing the mechanical strength of this portion.

  Further, the corner portion of the lower end portion 22 of the protective cap body 18 is formed with a tapered surface 24 having a gradually smaller diameter (inclined toward the inner diameter side) toward the distal end side. When inserting into the mouth part 16 of 14, the solid substance 12 accommodated in the container 14 is pushed away along this taper surface 24, and it is comprised so that insertion may become easy.

The lower end portion 22 of the protective cap body 18 is provided with a protective buffer portion 26 that constitutes the bottom portion of the protective cap body 18.
The protective buffer portion 26 extends from the lower end portion 22 of the protective cap body 18 to the inner peripheral side, and is formed concentrically in a horizontal direction with a bellows-shaped expansion / contraction adjustment portion 25, and the inner peripheral side of the expansion / contraction adjustment portion 25. And a central front end 30 located at the center of the expansion / contraction adjustment section 25.

  That is, as shown in FIGS. 1 and 2, the expansion / contraction adjustment unit 25 includes a plurality of thick folding pieces 28 a to 28 e that are arranged in a bellows shape concentrically in the horizontal direction, and these folding portions. Thin connecting portions 32a to 32d are provided that foldably connect the joint portions between the pieces 28a to 28e.

  Further, as shown in FIG. 2, a thin connecting portion that foldably connects these joining portions to the joining portion between the folding piece portion 28a of the expansion / contraction adjusting portion 25 and the lower end portion 22 of the protective cap body. 32f.

On the other hand, the center front end portion 30 has a substantially cup shape, and includes a side wall portion 34 and a bottom surface 36, and an air vent hole 38 is formed in the bottom surface 36 as shown in FIG. 1.
Thus, since the air vent hole 38 is formed in the center front end portion 30 of the protection buffer portion 26, the solid matter protection cap 10 can be easily inserted into the mouth portion 16 of the container 14.

  In addition, the corner portion of the side wall portion 34 of the central tip portion 30 is formed with a tapered surface 23 having a gradually smaller diameter (inclined toward the inner diameter side) toward the tip side. When inserting into the mouth part 16 of 14, the solid substance 12 accommodated in the container 14 is pushed away along this taper surface 23, and it is comprised so that insertion may become easy.

In addition, a thin connecting portion 32e that foldably connects these joint portions to each other is also provided at the joint portion between the folding piece portion 28e of the expansion / contraction adjustment portion 25 and the side wall portion 34 of the central tip portion 30.
As shown in the enlarged views of portions B and C in FIGS. 2 and 4, these connecting portions 32 include bent portions 40 that are bent outward from the bellows.

  As a result, the bent portion 40 acts like a spring, and as will be described later, the expansion / contraction adjustment portion 25 can be held in a folded state and in an extended state. These states can be reliably held at the protection buffer positions (first protection buffer position stage to third protection buffer position stage described later).

Further, as shown in FIGS. 1, 3, and 5, the upper end portion 20 of the protective cap body 18 is an open end portion, and an operation piece 42 protruding from the open end portion on the inner peripheral side. Is formed.
Thus, the operation piece 42 protruding from the inner peripheral side is formed on the upper end portion 20 of the protective cap body 18, so that the operation piece 42 is provided via the open end portion of the upper end portion 20 of the protection cap body 18. It is convenient and easy to remove the solid material protective cap 10 from the mouth portion 16 of the container 14 by locking it with a finger or the like and pulling it upward.

In this embodiment, as shown in FIG. 3, the three operation pieces 42 are formed at regular intervals (center angle 120 °), but the number, arrangement position, etc. are not particularly limited. .
In the state shown in FIGS. 1 and 2, the solid matter protective cap 10 of the present invention configured as described above has the bellows-shaped expansion / contraction adjustment portion 25 of the protective buffer portion 26 as the bottom portion of the protective cap body 18. It is in a state of being folded horizontally so as to form a bottom surface, that is, a folding position.

  In this state, as shown by the one-point difference line in FIG. 2, the angle α formed between the tips of the folding piece portions 28 is preferably set to 5 to 60 °, more preferably 10 to 30 °. By doing so, the folding position can be maintained. Therefore, when the solid-state protective cap 10 in this state is stored or transported, the folding position is not released due to vibration or the like.

  Therefore, since the expansion / contraction adjustment unit 25 is folded in the horizontal position at the folding position, it does not become bulky during storage or transportation. In addition, in the state where the expansion / contraction adjustment part 25 is folded in the horizontal position, the bent part 40 of the connecting part 32 acts like a spring to make the expansion / contraction adjustment part 25 extended, so that a normal bellows Since a force perpendicular to the expansion / contraction direction (direction A in FIG. 1) is required, this folded state can be maintained.

  Further, as shown in FIG. 2, the solid material protective cap 10 according to the present invention has the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion 25 from the center tip portion 30 side to the outer peripheral side. They are formed almost identically.

  With this configuration, as shown in FIG. 4, when the expansion / contraction adjustment section 25 is extended so as to protrude downward from the protective cap body 18, the central bellows-shaped expansion / contraction adjustment section is formed. Since the force for extending 25 and the force for extending the bellows-shaped expansion / contraction adjustment part 25 on the outer peripheral side are substantially uniform, the bellows-shaped expansion / contraction adjustment part 25 from the center side to the outside is substantially uniform. It can be extended to provide a protective buffer position for protecting the solid material 12 contained in the container 14.

  Note that, as described above, the bellows depth L and the bellows formation angle α can be gradually increased or decreased in the middle, or can be any combination thereof, in addition to being substantially uniform. Of course.

  Then, from the folding position shown in FIGS. 1 and 2, from the direction A in FIG. 1, for example, by pressing the central tip 30 of the protective buffer 26 with a finger or the like, as shown in FIG. A protection buffering position in which the diameter gradually decreases toward the distal end side in a state in which the expansion / contraction adjustment portion 25 is extended so as to protrude downward from the protective cap body 18 in an extended state.

  6 to 7 are longitudinal sectional views showing a process from the folding position in FIGS. 1 and 2 to the protection buffer position in FIGS. 4 and 5. In addition, the expansion | extension order of the expansion / contraction adjustment part 25 which reaches a protection buffer position is not limited to this.

  And in this state of a protection buffer position, as shown in FIG. 5, the solid substance 12 accommodated in the container 14 is protected by inserting the protective cap main body 18 into the mouth part 16 of the container 14. be able to.

In this case, in the protective cap 10 for solid matter of the present invention, the protective buffer function according to the amount of the solid matter 12 accommodated in the container 14 and the remaining amount, that is, according to the size of the space above the container 14. In the process from the folding position of FIGS. 1 and 2 to the protection buffer position of FIGS. 4 and 5, only the connecting portions 32d and 32e are provided as shown in FIG. 6C. Is extended to the first protection buffer position stage, and as shown in FIG. 7A, only the connecting portions 32c, 32d, and 32e are extended to the second protection buffer position stage, FIG. 7C (FIG. 4). As shown in FIG. 3, the step of the buffer buffer position is stepped by adjusting the expansion / contraction degree of the bellows-shaped expansion / contraction adjustment part 25 as in the third protection buffer position stage where all the connecting parts 32a to 32f are extended. It is comprised so that it may become.

  In this way, the protective buffer position becomes a stepwise protective buffer position by adjusting the expansion / contraction degree of the bellows-shaped expansion / contraction adjustment unit 25, so that it depends on the amount of solid matter 12 accommodated in the container 14 and the remaining amount. That is, the protective buffer function can be sufficiently exerted according to the size of the gap at the top of the container 14.

  In this case, in this embodiment, the protection buffer positions are set to three stages from the first protection buffer position stage to the third protection buffer position stage, but the number of stages is the bellows of the expansion / contraction adjustment unit 25. The number of shapes, that is, the number of the folding piece portions 28 and the connecting portions 32 can be changed as appropriate.

  In the solid matter protective cap 10 of the present invention configured as described above, the expansion / contraction adjusting portion 25 extends from the lower end portion 22 of the protective cap main body 18 toward the inner peripheral side, and is formed in a concentric horizontal shape in the horizontal direction. Therefore, once the expansion / contraction adjustment part 25 is extended, the bent part 40 of the connecting part 32 acts like a spring in order to return to the folded state, so what is the normal expansion / contraction direction of the bellows? Since a force in the vertical direction (direction D in FIG. 4) is required, a certain amount of force is required.

  Therefore, it has a stopper function to maintain the stretched state according to the size of the upper space of the solid material 12 accommodated in the container 14, and this causes the solid material to move upward due to vibration during transportation. Even when a force is applied, it is not easily folded, a gap is not generated, the movement of the solid substance in the container can be completely suppressed, and the damage of the solid substance 12 can be prevented. .

  Furthermore, since the diameter gradually decreases toward the tip side in any of the protective buffer positions, the solid matter 12 does not get caught in the bellows portion as in the prior art, and at the same time, the solid matter 12 remains in the container 14. No spills from the inside out.

In addition, since there are no bellows-like irregularities as in the prior art, it can be used for the solid material 12 having different sizes, has versatility, and can reduce the cost.
Furthermore, since the bellows-shaped expansion / contraction adjustment part 25 exists in the horizontal direction instead of the bellows in the vertical direction as in the prior art, the bellows shape does not get in the way, and an injection mold comprising a pair of upper and lower molds. Using a mold, injection molding (injection molding) can be performed in the folded position, and since the number of cases per case is increased and there is no need for a folding process after molding, the cost can be reduced, A protective cap for solids having excellent molding accuracy can be provided.

  In this case, as the solid-state protective cap 10, for example, a resin such as polyethylene can be used. However, depending on the type of the solid body 12 accommodated in the container 14, it can be used other than this, and is particularly limited. Yes.

  In addition, in FIG. 5, although the outer cover with which the opening part 16 of the container 14 is mounted | worn is not illustrated, conventionally well-known things, such as the shape and structure, can be employ | adopted for such an outer cover, and it is not limited at all. Is not to be done.

  Further, as described above, the protective cap 10 for solid matter of the present invention is formed by injection molding for protecting the solid matter 12 accommodated in the container 14 at the mouth portion 16 of the container 14 accommodating the solid matter 12. A protective cap for solids.

  That is, a cylindrical protective cap body 18 that is detachably attached to the mouth portion 16 of the container 14 and a protective buffer portion 26 that constitutes a bottom portion of the protective cap body 18 are provided. Only in the molding direction, it is configured to have a concavo-convex portion (that is, a bellows-shaped expansion / contraction adjustment portion 25 in the horizontal direction, and a central tip portion 30 located at the center of the expansion / contraction adjustment portion 25).

  With this configuration, the protective buffer portion 26 that forms the bottom portion of the protective cap body 18 has a concavo-convex portion only in the injection molding direction, so that the concavo-convex portion does not interfere with the injection molding, and the injection molding metal The mold can be used for injection molding (injection molding), mass production is possible, and cost can be reduced.

Such a configuration is the same in the following embodiments.
FIG. 8: is a longitudinal cross-sectional view which shows the state which inserted the protective cap for solid substances of another Example of this invention in the opening part of the container which accommodated the solid substance.

  The solid protective cap 10 of this embodiment is basically the same as the solid protective cap 10 of the embodiment shown in FIGS. 1 to 5, and therefore the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  As shown in FIG. 8, the protective cap 10 for solid matter of this embodiment is provided on the upper end of the protective cap main body 18 in an annularly projecting manner on the outer peripheral side and engages with the mouth 16 of the container 14. Is formed.

  With this configuration, the solid matter protection cap 10 is locked to the mouth portion 16 of the container 14 by the flange portion 44 protruding from the outer peripheral side of the upper end of the protection cap body 18, that is, the solid matter protection. The cap 10 can be in a state of being fitted to the mouth portion 16 of the container 14.

  In this state, as shown by the arrow A in FIG. 8, the protective buffer 26 is pushed downward by pushing the central tip 30 downward with a finger from the upper side, although not shown, using a separate extrusion jig or the like. The expansion / contraction adjustment part 25 can be in the extended state so as to protrude downward from the protective cap main body 18 in an extended state, and the use operation attached to the mouth part 16 of the container 14 is simple. It can be done reliably and is very convenient.

  Moreover, although not shown in figure, the collar part 44 protrudingly provided by the outer peripheral side of the upper end of the protective cap main body 18 can be made into the state supported with the jig | tool. Then, with the flange 4 supported by a jig or the like in this manner, a finger from above, not shown, can be separated from the protective cap body 18 by pressing the central tip 30 downward using a separate extrusion jig. It can be set as a protection buffering position in which the expansion / contraction adjusting portion 25 is extended so as to protrude downward in a stretched state, and the solid material protective cap 10 in this state is attached to the mouth portion 16 of the container 14. Can be used.

  In this embodiment, the flange portion 44 protrudes in an annular shape on the outer peripheral side at the upper end of the protective cap body 18. However, the plurality of flange portions 44 are spaced apart from each other by a predetermined interval, and the upper end of the protective cap body 18 is You may make it form in.

  FIG. 9 is a perspective view of a state of a protective buffering position of a solid protective cap according to another embodiment of the present invention, FIG. 10 is a side view of the solid protective cap of FIG. 9, and FIG. 11 is a solid of FIG. It is a longitudinal cross-sectional view which shows the state which inserted the protective cap for objects in the opening | mouth part of the container which accommodated the solid substance.

  The solid protective cap 10 of this embodiment is basically the same as the solid protective cap 10 of the embodiment shown in FIGS. 1 to 5, and therefore the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  As shown in FIGS. 9 to 11, the solid matter protective cap 10 according to this embodiment has an axial bellows in which a plurality of axial bellows 46 that can expand and contract in the axial direction are formed on the protective cap body 18. A portion 48 is provided.

By providing the axial bellows portion 48 formed with the plurality of axial bellows 46 that can extend and contract in the axial direction in this way, the axial bellows portion 48 is provided with cushioning properties in the axial direction. It is possible to cope with a larger space capacity.
That is, when the amount of solid matter 12 in the container 14 and the remaining amount are large and the space capacity is small, the bellows 46 of the axial bellows portion 48 is folded (a state contracted in the axial direction). A case where the amount and the remaining amount of the solid matter 12 in the container 14 are small and the space capacity is large can be dealt with by causing the bellows 46 of the axial bellows portion 48 to extend in the axial direction.

  Further, by operating the bellows 46 of the axial bellows portion 48 in this way, it is possible to cope with the space capacity in the container 14, so that different sizes of the solid bellows 12 in the container 14 have different sizes. It is not necessary to prepare the protective cap 10 for solid matter, and it is possible to cope with the same size and different capacity by using the same protective cap 10 for solid matter.

  In this case, in the solid matter protective cap 10 of this embodiment, an axial bellows portion 48 in which a plurality of axial bellows 46 that can be expanded and contracted in the axial direction is formed. By using the “core”, injection molding (injection molding) can be performed.

In this case, the number and shape of the bellows 46 of the axial bellows portion 48 are not particularly limited, and can be appropriately changed.
Furthermore, as shown in FIG. 10, it is desirable that the axial length S1 of the axial bellows portion 48 is as long as possible, and the axial length S1 of the axial bellows portion 48 is the expansion / contraction adjustment portion 25. It is desirable to set the length to be longer than the length S2 of the state where the protective buffering position is set.

  FIG. 12 is a perspective view of a protection buffer position state of a solid material protection cap according to another embodiment of the present invention, FIG. 13 is a side view of the solid material protection cap of FIG. 12 in the A direction, and FIG. FIG. 15 is a top view of the solid matter protective cap of FIG. 12, and FIG. 16 is a diagram of the container containing the solid matter. FIG. 17 is a perspective view showing a state in which the protective cap for solid matter is in a protective buffer position, according to still another embodiment of the present invention.

  The solid protective cap 10 of this embodiment is basically the same as the solid protective cap 10 of the embodiment shown in FIGS. 1 to 5, and therefore the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  As shown in FIGS. 12 to 16, the solid matter protective cap 10 of this embodiment has a plurality of axial slits 50 formed in the protective cap body 18. Further, the protective cap main body 18 itself, in which the slit 50 is formed in this way, is also formed to be curved in the inner diameter direction so that the central portion protrudes in the inner diameter direction.

  By configuring in this manner, the protective cap body 18 itself is curved in the inner diameter direction, thereby providing cushioning properties in the axial direction, so that a larger space capacity can be accommodated in the container 14.

  That is, when the amount and the remaining amount of the solid matter 12 in the container 14 are large and the space capacity is small, the protective cap body 18 itself in which the slit 50 is formed is curved in the inner diameter direction (contracted in the axial direction). On the contrary, when the amount of solid matter 12 in the container 14 and the remaining amount are small and the space capacity is large, the protective cap body 18 itself formed with the slit 50 is bent to the inner diameter direction. It is possible to cope with this by reducing the distance to the axially extended state.

  Further, by operating the protective cap body 18 having the slits 50 formed in this manner, it is possible to cope with the space capacity in the container 14, so that it varies depending on the filling amount of the solid matter 12 in the container 14. There is no need to prepare a solid-sized protective cap 10, and the same solid-sized protective cap 10 can be used for containers having the same diameter and different capacities.

  In this case, in the solid material protective cap 10 of this embodiment, the protective cap body 18 is formed with the slit 50 formed in the axial direction, but by using a so-called “collapsible core”, Injection molding (injection molding) can be performed.

  In this case, the number and shape of the slits 50 are not particularly limited, and can be appropriately changed, for example, by using a slit 50a having a shape having a large vertical width as shown in FIG. .

  Furthermore, as shown in FIG. 13, the axial length S1 of the protective cap body 18 in which the slits 50 are formed is preferably as long as possible, and this length S1 extends the expansion / contraction adjustment section 25. It is desirable that the length is set to be longer than the length S2 of the state where the protection buffer position is set to the closed state.

  18 is a longitudinal cross-sectional view of a solid material protection cap in a folded position according to still another embodiment of the present invention, FIG. 19 is a partially enlarged cross-sectional view of the solid material protection cap of FIG. 18, and FIG. FIG. 21 is a longitudinal cross-sectional view showing a state in which the solid-state protective cap of FIG. 1 is inserted into the mouth of the container containing the solid matter, FIG. 22 is a longitudinal sectional view showing a state in which the protective cap for solid matter according to still another embodiment of the present invention is in the folded position.

  The solid protective cap 10 of this embodiment is basically the same as the solid protective cap 10 of the embodiment shown in FIGS. 1 to 5, and therefore the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  As shown in FIGS. 18 and 19, the solid matter protective cap 10 of this embodiment is configured such that the bellows depth L of the bellows-shaped expansion / contraction adjustment portion 25 is greater than the bellows depth L on the center tip portion 30 side. The bellows depth L on the outer peripheral side is formed so as to gradually increase.

  That is, in the embodiment shown in FIG. 19, the bellows depth L on the outer peripheral side is gradually larger than the bellows depth L on the central tip 30 side so that L1 <L2 <L3. is doing.

In addition, the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion 25 is formed so that the bellows formation angle α on the center tip portion 30 side gradually becomes larger than the bellows formation angle α on the outer peripheral side.
That is, in the embodiment shown in FIG. 19, the bellows formation angle α on the central tip 30 side is gradually larger than the bellows formation angle α on the outer peripheral side so that α1>α2>α3> α4. Is formed.

  With this configuration, the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion 25 are extended from the central tip portion 30 side to the outer peripheral side as in the embodiment of FIGS. In the case where they are formed substantially the same, the outer peripheral side, the center side, and the like are stretched regardless, so that it is impossible to obtain a solid material protective cap having a desired constant height (volume).

  On the other hand, by configuring as described above, the bellows depth L is small (L1) and the bellows formation angle α is large (α1) in the centermost bellows-shaped expansion / contraction adjustment section 25, and the center The force for extending the side bellows-shaped expansion / contraction adjustment section 25 is reduced, and the bellows-shaped expansion / contraction adjustment section 25 on the outer peripheral side has a large bellows depth L (L2 to L3) and a small bellows formation angle α. (Α2 to α4), and the force for expanding the bellows-shaped expansion / contraction adjustment portion 25 on the outer peripheral side gradually increases.

  As a result, the bellows-shaped expansion / contraction adjusting portion 25 is gradually extended from the center side to the outer peripheral side, and the solid material protective cap 10 having a desired constant height (volume) can be obtained.

  By configuring in this way, in the initial stage of expansion, the bellows-shaped expansion / contraction adjustment part 25 having a small bellows depth L is expanded, so that the expansion ratio is small. This is suitable when the amount of the solid material 12 is large and the space is small. As the bellows-shaped expansion / contraction adjusting portion 25 of the outer peripheral portion having a large bellows depth L is stretched as it goes to the later stage of stretching, the stretching is performed. Since the ratio is large, for example, it is suitable when the amount of the solid matter 12 in the container 14 is small and the space is large.

  Further, as shown in FIG. 20, in the solid-state protective cap 10 of this embodiment, the center front end portion 30 protrudes downward by a distance M from the lower end portion 22 of the protective cap body 18 in the folded position. It is formed so that it may be located in the position.

  By configuring in this way, in the folding position, the central tip 30 is located at a position protruding downward (that is, the lower limit position of the folding part), and the outer peripheral side is located at a position higher than the center side, so-called mortar It becomes a shape.

  Thereby, in the bellows-shaped expansion / contraction adjustment portion 25, the outer peripheral portion from the center portion is more reliably provided than the solid-state protective cap 10 of the embodiment of FIGS. 1 to 5 in which the lower limit position of the folding portion is flat. It becomes possible to extend over to. In addition, even if it is in this mortar shape, it is also possible to exhibit a tablet buffering effect.

FIG. 22 is a longitudinal sectional view showing a state in which the protective cap for solids according to still another embodiment of the present invention having a conspicuous mortar shape is in the folded position.
Further, as shown in FIG. 20, the solid matter protective cap 10 of this embodiment has slits 50 b formed in the bellows-shaped expansion / contraction adjustment portion 25.

  As described above, when the slit 50b is formed in the bellows-shaped expansion / contraction adjustment part 25, when the bellows-shaped expansion / contraction adjustment part 25 is extended and inflated, the slit 50b part becomes an interference part, The force in the circumferential direction is absorbed, and the bellows-shaped expansion / contraction adjustment part is easily expanded and swelled.

  For example, although not shown, the humidity inside the container 14 can be controlled from the slit 50b by inserting and installing a desiccant inside (inside) the solid material protective cap 10 of the present invention. It becomes possible to prevent the solid material 12 from getting wet.

  In this case, the number, shape, arrangement position, and the like of the slits 50b are not particularly limited. However, as shown in FIG. 20, a plurality of slits 50b are provided at a predetermined center angle on the bellows-shaped expansion / contraction adjustment unit 25. It is desirable to form them concentrically apart from each other in view of the ease of extension described above.

In order to make the bellows-shaped expansion / contraction adjustment portion 25 of the outer peripheral portion that is difficult to extend easily swell and extend easily, the effect is more effective when it is provided on the outer peripheral side than the center side.
However, since the slit 50b is formed by aligning the upper and lower sides of the mold, it can be easily formed not only on the outer peripheral side but also on the center side. It is also possible to provide concentric slits 50b in all of the above, and it is possible to reliably extend the slits.

  Further, as shown in FIG. 21, the solid material protective cap 10 of this embodiment has a rib 52 extending in the axial direction on the outer periphery of the protective cap body 18. In FIG. 21, for convenience of explanation, the solid material 12 is omitted.

  With this configuration, the rib 52 functions as a retaining rib, and the protective cap 10 does not come off and is difficult to loosen. Therefore, when the protective cap 10 for solid matter is attached to the mouth portion 16 of the container 14, the solid matter 12 such as a tablet is shaken due to vibration during transportation until the outer screw cap 54 is closed. It is possible to prevent the protective cap 10 from being pushed out toward the mouth portion 16 of the container 14.

  Further, since the rib 52 is in line contact with the wall surface of the mouth portion 16 of the container 14, it is easy to attach the protective cap 10 for solid matter into the mouth portion 16 of the container 14, and the mouth of the container 14. It becomes easy to take out from the part 16.

  The number, shape, length, arrangement position and the like of the ribs 52 are not particularly limited. As shown in FIG. 21, a plurality of ribs 52 are provided on the outer periphery of the protective cap body 18. It is desirable to form concentric circles that are separated from the central angle in consideration of the function as a retaining rib. In addition, various shapes of protrusions can be employed instead of the ribs.

  In addition, the length of the rib 52 is not particularly limited. However, if the function as a retaining rib is considered with respect to the length of the mouth portion 16 of the container 14, the length of the expansion / contraction adjustment portion 25 can be expanded and contracted. However, it is desirable to set the protective cap within a range where it does not come off easily when temporarily placed.

Further, as shown in FIG. 18, the solid matter protective cap 10 of this embodiment is formed with a horizontal receiving portion 56 at a joint portion between the protective cap main body and the bellows-shaped expansion / contraction adjusting portion.
With this configuration, the horizontal receiving portion 56 at the joint between the protective cap body 18 and the bellows-shaped expansion / contraction adjustment portion 25 is supported by a jig 58 or the like as indicated by the dotted line in FIG. can do.

And in this state, as shown by the arrow A in FIG. 18, the protection buffer portion 26 is pushed by a finger from above, not shown, but by pushing the central tip 30 downward using a separate extrusion jig, The expansion and contraction adjustment portion 25 can be set in a stretched state so that it protrudes downward from the protective cap body 18 in a stretched state, and the operation of mounting and using the mouth portion 16 of the container 14 is simple. It can be done reliably and is very convenient.

  Further, instead of the horizontal receiving portion 56 or together with the horizontal receiving portion 56, a flange portion 44 protruding from the outer peripheral side of the upper end of the protective cap body 18 is further provided as shown by a dotted line in FIG. It can also be set as the state supported by. In this manner, with the flange 4 supported by the jig 60 or the like, the protective cap main body can be obtained by pressing the center tip 30 downward using a finger, not shown, but separately using an extruding jig. The expansion / contraction adjustment part 25 can be set to a protection buffer position in which the expansion / contraction adjustment part 25 is extended so as to protrude downward from the state 18, and the solid material protection cap 10 in this state is placed in the mouth part 16 of the container 14. Can be installed and used.

  FIG. 23 is a longitudinal sectional view showing a solid protective cap in a folded position according to still another embodiment of the present invention, FIG. 24 is a partially enlarged sectional view of the solid protective cap of FIG. 23, and FIG. FIG. 26 is a longitudinal sectional view showing a state in which the solid-state protective cap of FIG. 23 is inserted into the mouth portion of the container containing the solid-state, and FIG. 26 shows the folding of the solid-state protective cap of still another embodiment of the present invention. It is a longitudinal cross-sectional view of the state in a position.

  The solid protective cap 10 of this embodiment is basically the same as the solid protective cap of the embodiment shown in FIGS. 18 to 22, and therefore the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  As shown in FIGS. 23 and 24, the solid matter protective cap 10 according to this embodiment is configured such that the bellows depth L of the bellows-shaped expansion / contraction adjustment portion 25 is set to the center tip portion rather than the bellows depth L on the outer peripheral side. The bellows depth L on the 30th side is formed so as to gradually increase.

  That is, in the embodiment shown in FIG. 24, the bellows depth L on the central tip 30 side is gradually larger than the bellows depth L on the outer peripheral side so that L1> L2> L3. is doing.

In addition, the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion 25 is formed so that the bellows formation angle α on the outer peripheral side gradually becomes larger than the bellows formation angle α on the center tip portion 30 side.
That is, in the embodiment shown in FIG. 24, the bellows formation angle α on the outer peripheral side is gradually larger than the bellows formation angle α on the center tip portion 30 side so that α1 <α2 <α3 <α4. Is formed.

  With this configuration, the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjustment portion 25 are extended from the central tip portion 30 side to the outer peripheral side as in the embodiment of FIGS. In the case where they are formed substantially the same, the outer peripheral side, the center side, and the like are stretched regardless, so that it is impossible to obtain a solid material protective cap having a desired constant height (volume).

  On the other hand, by configuring as described above, the bellows-shaped depth L is small (L3) and the bellows formation angle α is large (α4) in the bellows-shaped expansion / contraction adjustment section 25 on the outer peripheral side. The force required to extend the bellows-shaped expansion / contraction adjustment portion 25 becomes small, and in the bellows-shaped expansion / contraction adjustment portion 25 on the center side, the bellows depth L is large (L1 to L2) and the bellows formation angle α is small. (Α1 to α3), the force for extending the central bellows-shaped expansion / contraction adjustment portion gradually increases.

As a result, the bellows-shaped expansion / contraction adjustment portion 25 is gradually extended from the outer peripheral side to the center side, and a protective cap for solids having a desired constant height (volume) can be obtained.
By configuring in this way, in the initial stage of expansion, the bellows-shaped expansion / contraction adjustment section 25 on the outer peripheral side having a small bellows depth L is expanded, so that the expansion ratio is small. This is suitable when the amount of the solid material 12 is large and the space is small, and as the bellows-shaped expansion / contraction adjusting portion 25 having a large bellows depth L is stretched as it goes to the later stage of stretching, the stretching is adjusted. Since the ratio is large, for example, it is suitable when the amount of the solid matter 12 in the container 14 is small and the space is large.

In addition, the solid material protective cap 10 of this embodiment is also formed so that the central tip 30 is located at a position protruding downward in the folded position.
By configuring in this way, in the folding position, the central tip 30 is located at a position protruding downward (that is, the lower limit position of the folding part), and the outer peripheral side is located at a position higher than the center side, so-called mortar It becomes a shape.

  Thereby, in the bellows-shaped expansion / contraction adjustment part 25, more reliably than the protective cap 10 for solid objects of the Example of FIGS. It becomes possible to extend over to. In addition, even if it is in this mortar shape, it is also possible to exhibit a tablet buffering effect.

FIG. 26 is a longitudinal sectional view showing a state in which the protective cap for solids according to still another embodiment of the present invention having a conspicuous mortar shape is in the folded position.
In the above-described embodiment, the protective cap for solids has been described. However, the protective buffer portion having the bellows-shaped expansion / contraction adjustment portion 25 of the protection buffer portion 26 having at least one expansion / contraction expansion / contraction adjustment portion. In this case, the expansion / contraction adjustment section is configured to be adjustable in multiple stages.

Further, in this case, one or more expansion / contraction adjustment sections can be formed in each protection buffer section.
Further, the expansion / contraction adjustment part is provided with an accordion-shaped expansion / contraction adjustment part that extends inward and is formed in a concentric horizontal direction, and the protection buffer part is in a state in which the expansion / contraction adjustment part is folded in a horizontal position. It can be configured to be extendable between a folded position and a protection buffering position for protecting the object to be protected in a state where the expansion / contraction adjusting portion is extended so as to protrude in the extended state.

  By configuring in this way, a buffer material for expanding and contracting a single adjustment part that expands and contracts in multiple stages and fills a gap in a box, etc., and a plurality of adjustment parts that expand and contract in multiple stages are arranged. For example, as a cushioning material for a specially shaped bottle or wine glass, a cushioning material that can be used in accordance with the shape can be provided.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the internal space of the solid material protective cap 10, for example, a quality deterioration preventing agent, Various modifications can be made without departing from the object of the present invention, such as containing agents.

FIG. 1 is a longitudinal cross-sectional view of the solid-state protective cap of the present invention in a folded position. FIG. 2 is a partially enlarged cross-sectional view of the solid material protective cap of FIG. 1. 3 is a view in the direction of arrow A of the solid material protective cap of FIG. FIG. 4 is a longitudinal sectional view of the solid material protection cap of FIG. 1 in a protective buffer position. FIG. 5 is a longitudinal sectional view showing a state in which the solid-state protective cap of FIG. 1 is inserted into the mouth portion of the container containing the solid matter. FIG. 6 is a longitudinal sectional view showing a process from the folding position of FIGS. 1 and 2 to the protection buffer position of FIGS. 4 and 5. FIG. 7 is a longitudinal sectional view showing a process from the folding position of FIGS. 1 and 2 to the protection buffer position of FIGS. 4 and 5. FIG. 8: is a longitudinal cross-sectional view which shows the state which inserted the protective cap for solid substances of another Example of this invention in the opening part of the container which accommodated the solid substance. FIG. 9 is a perspective view of a protection buffer position state of a solid material protection cap according to another embodiment of the present invention. FIG. 10 is a side view of the solid material protective cap of FIG. 9. FIG. 11 is a longitudinal cross-sectional view showing a state in which the solid-state protective cap of FIG. 9 is inserted into the mouth portion of the container containing the solid matter. FIG. 12 is a perspective view of the protective buffer position of the solid-state protective cap according to another embodiment of the present invention. FIG. 13 is a side view in the A direction of the solid material protective cap of FIG. 14 is a side view in the B direction of the solid material protective cap of FIG. FIG. 15 is a top view of the solid material protective cap of FIG. FIG. 16 is a longitudinal sectional view showing a state in which the solid-state protective cap of FIG. 12 is inserted into the mouth portion of the container containing the solid matter. FIG. 17 is a perspective view of the protective buffer position of the solid material protective cap according to still another embodiment of the present invention. FIG. 18 is a longitudinal sectional view showing a state in which the protective cap for solid matter according to still another embodiment of the present invention is in the folded position. 19 is a partially enlarged cross-sectional view of the solid material protective cap of FIG. 20 is a view in the direction of arrow A of the solid material protective cap of FIG. FIG. 21 is a longitudinal sectional view showing a state in which the solid-state protective cap of FIG. 18 is inserted into the mouth portion of the container containing the solid matter. FIG. 22 is a vertical cross-sectional view of a solid material protective cap in a folded position according to still another embodiment of the present invention. FIG. 23 is a longitudinal sectional view showing a state in which the protective cap for solid matter according to still another embodiment of the present invention is in the folded position. FIG. 24 is a partially enlarged cross-sectional view of the solid material protective cap of FIG. FIG. 25 is a longitudinal sectional view showing a state in which the solid-state protective cap of FIG. 23 is inserted into the mouth of the container containing the solid matter. FIG. 26 is a longitudinal sectional view showing a state in which the protective cap for solid matter according to still another embodiment of the present invention is in the folded position. FIG. 27 is a longitudinal sectional view for explaining the use state of a conventional packaging cushioning material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Protective cap 12 for solid objects 14 Container 16 Mouth part 18 Protective cap main body 20 Upper end part 21 Tapered surface 22 Lower end part 24 Tapered surface 25 Expansion adjustment part 26 Protection buffer part 28a-28e Single folding part 30 Center front end part 32a −32f connecting portion 34 side wall portion 36 bottom surface 38 air vent hole 40 bent portion 42 operation piece 44 flange 46 bellows 48 axial bellows portion 50, 50a, 50b slit 52 rib 54 screw cap 56 horizontal receiving portion 58, 60 jig 100 packaging Buffer material 102 Cylindrical portion 104 Container 106 Mouth portion 108 Head portion 110 Body portion 111 Bellows 112 Body portion 114 Bottom portion 116 Solid matter 118 Void α Angle β Angle

Claims (27)

A protective cap for solid matter for protecting the solid matter contained in the container at the mouth of the container containing the solid matter,
Provided with a protective buffer that forms the bottom,
The protective buffer is
A bellows-shaped expansion / contraction adjustment part that extends from the lower end to the inner peripheral side and is formed concentrically in a horizontal direction,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position so as to form a bottom surface;
In a state where the expansion / contraction adjustment portion is extended so as to protrude downward in a stretched state, the diameter gradually decreases toward the distal end side, and a protective buffer position that protects the solid matter stored in the container,
Protective cap for solid material, characterized in that it is configured to be stretchable between. A cylindrical protective cap body detachably attached to the mouth of the container;
A protective buffer portion constituting the bottom of the protective cap body,
The protective buffer is
An accordion-shaped expansion / contraction adjustment portion extending from the lower end of the protective cap body to the inner peripheral side and formed concentrically in the horizontal direction;
A central tip located at the center of the expansion / contraction adjustment part;
With
The protective buffer is
As the bottom of the protective cap body, a folding position in which the expansion / contraction adjustment part is folded in a horizontal position so as to form a bottom surface;
A protection buffering position for protecting the solid matter stored in the container with the diameter gradually decreasing toward the distal end side in a state where the expansion / contraction adjustment portion is extended so as to protrude downward from the protective cap body. ,
The solid-state protective cap according to claim 1, wherein the protective cap is configured to be stretchable between the two.   The protective cap for solids according to claim 2, wherein the bellows depth L and the bellows formation angle α of the bellows-shaped expansion / contraction adjusting portion are formed substantially the same from the central tip end side to the outer peripheral side. The bellows depth L of the bellows-shaped expansion / contraction adjustment portion is formed such that the bellows depth L on the outer peripheral side is gradually larger than the bellows depth L on the center tip side,
The bellows forming angle α of the bellows-shaped expansion / contraction adjusting portion is formed such that the bellows forming angle α on the center tip side is gradually larger than the bellows forming angle α on the outer peripheral side. 2. A protective cap for solids according to 2. The bellows depth L of the bellows-shaped expansion / contraction adjustment portion is formed so that the bellows depth L on the center tip side is gradually larger than the bellows depth L on the outer peripheral side,
The bellows forming angle α of the bellows-shaped expansion / contraction adjusting portion is formed such that the bellows forming angle α on the outer peripheral side is gradually larger than the bellows forming angle α on the center tip side. 2. A protective cap for solids according to 2.   The solid-state protective cap according to any one of claims 2 to 5, wherein, in the folded position, the central tip is formed at a position protruding downward.   The solid buffer protective cap according to claim 1, wherein a slit is formed in the protective buffer portion.   The said protection buffer position is comprised so that it may become a stepwise protection buffer position by adjusting the expansion-contraction degree of a bellows-shaped expansion-contraction adjustment part. Protective cap for solids. The expansion / contraction adjustment part is composed of a plurality of thick folding pieces,
These joints can be foldably connected to the joint between these folding pieces, the joint between the folding piece and the protective cap body, and the joint between the expansion adjustment part and the central tip. The solid protective cap according to any one of claims 2 to 8, further comprising a thin connecting portion.   The connecting portion includes a bent portion, and the bent portion is configured so that the protection buffer portion can maintain these states at the folded position and the protected buffer position. The protective cap for solid substances as described in 1.   The solid cap protective cap according to any one of claims 2 to 10, wherein the protective cap main body is configured such that the diameter gradually decreases downward.   The protective cap for solids according to any one of claims 2 to 11, wherein an air vent hole is formed in a central tip portion of the protective buffer portion.   The solid object protective cap according to any one of claims 2 to 12, wherein an operation piece projecting on an inner peripheral side is formed at an upper end of the protective cap main body.   The solid-body protection according to any one of claims 2 to 13, wherein an upper end of the protective cap main body is provided with a collar projecting on the outer peripheral side and engaging with a mouth of the container. cap.   The solid body according to any one of claims 2 to 14, wherein the protective cap body includes an axial bellows portion in which a plurality of axial bellows capable of expanding and contracting in the axial direction is formed. Protective cap.   The solid protective cap according to any one of claims 2 to 15, wherein a plurality of axial slits are formed in the protective cap body.   The solid cap protective cap according to any one of claims 2 to 16, wherein a protrusion is formed on an outer periphery of the protective cap main body.   The solid protrusion protective cap according to claim 17, wherein the protrusion is a rib extending in an axial direction.   The solid cap according to any one of claims 2 to 18, wherein a horizontal receiving portion is formed at a joint portion between the protective cap main body and the bellows-shaped expansion / contraction adjusting portion.   A solid matter container, wherein the solid matter protective cap according to any one of claims 1 to 19 is attached to a mouth portion of the container. A protective cap for solid matter molded by injection molding for protecting the solid matter contained in the container at the mouth of the container containing the solid matter,
Provided with a protective buffer that forms the bottom,
The protective cap for solids, wherein the protective buffer portion is configured to have an uneven portion only in the injection molding direction. The uneven part of the protective buffer part is
A bellows-shaped expansion / contraction adjustment part that extends from the lower end to the inner peripheral side and is formed concentrically in a horizontal direction,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position so as to form a bottom surface;
In a state where the expansion / contraction adjustment portion is extended so as to protrude downward in a stretched state, the diameter gradually decreases toward the distal end side, and a protective buffer position that protects the solid matter stored in the container,
The solid material protective cap according to claim 21, wherein the solid material protective cap is configured to be stretchable between the two. A cylindrical protective cap body that is detachably attached to the mouth of the container,
The uneven part of the protective buffer part is
An accordion-shaped expansion / contraction adjustment portion extending from the lower end of the protective cap body to the inner peripheral side and formed concentrically in the horizontal direction;
A central tip located at the center of the expansion / contraction adjustment part;
With
The protective buffer is
As the bottom of the protective cap body, a folding position in which the expansion / contraction adjustment part is folded in a horizontal position so as to form a bottom surface;
A protection buffering position that protects the solid agent contained in the container with a diameter gradually decreasing toward the distal end side in a state where the expansion / contraction adjustment portion is extended so as to protrude downward from the protective cap body. ,
The solid agent protective cap according to any one of claims 20 to 21, wherein the protective cap is configured to be stretchable between the two.   At least one surface part is provided with the protection buffer part which has an expansion-contraction adjustment part which can be expanded-contracted, The buffer material characterized by the above-mentioned.   25. The cushioning material according to claim 24, wherein the expansion / contraction adjustment section is configured to be adjustable in expansion and contraction in multiple stages.   The cushioning material according to any one of claims 24 to 25, wherein one or a plurality of the expansion / contraction adjustment portions are formed in each protection buffering portion. The expansion / contraction adjustment part is provided with an accordion-shaped expansion / contraction adjustment part that extends to the inner peripheral side and is formed concentrically in the horizontal direction,
The protective buffer is
A folding position in which the expansion and contraction adjusting portion is folded in a horizontal position;
A protection buffering position for protecting an object to be protected in a state in which the expansion / contraction adjustment portion is extended so as to protrude in an extended state;
The cushioning material according to any one of claims 24 to 26, wherein the cushioning material is configured to be stretchable between the two.

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