JP4582697B2 - Dampproof device - Google Patents

Description

  The present invention relates to a moisture-proof stopper device that is attached to a lid-like cap for opening and closing a mouth portion of a container, and that moisture-proofs or adjusts the atmosphere in the container by the moisture-absorbing action of a desiccant (humidity-proof agent), The present invention relates to a technique that allows the desiccant to be easily separated and recovered from the cap at the time of disposal after use, so that the desiccant can be easily discarded.

  Conventionally, a container configured to be opened and closed by screwing a cap configured as a lid body from the peripheral wall and the top wall to the mouth portion of the container or opening the cap by removing the cap has been known. Yes. And when storing a medicine or the like that dislikes moisture in the container, a desiccant is accommodated inside the cap, and the atmosphere in the container is in a predetermined state by the moisture absorption function or the humidity control function of the desiccant. Moisture prevention is carried out.

  In order to realize such moisture proof, a cap-shaped inner stopper member is installed in the cap, and a desiccant is accommodated in the accommodating space between the inner surface of the inner stopper member and the top wall of the cap. (See, for example, Patent Document 1). In this device, the atmosphere in the container and the desiccant are brought into contact with each other through a vent hole penetrating the inner plug member, and moisture contained in the atmosphere in the container is absorbed by the desiccant so as to prevent moisture.

  And if the chemical | medical agent etc. which were accommodated in the container are consumed and become empty, the said container with a cap will be discarded. At this time, for example, remove the inner plug member from the cap with the tip of a rod-shaped tool such as a ballpoint pen or tweezers and separate the internal desiccant from the inner plug member, etc. Although it is possible to separate and discard the agent, it has also been proposed to add a configuration for assisting the removal work of the inner plug member to the inner plug member. For example, Patent Document 2 proposes that a circular window hole is formed through the inner plug member, and a band-like portion arranged like a bridge across the window hole is integrally molded with the inner plug member and connected. Has been.

Japanese Patent No. 3291531 JP 2002-326656 A

  However, in the above-mentioned proposal in which the belt-like portion is disposed in the circular window hole, it is difficult to apply a peeling force for removing the inner plug member from the cap to the inner plug member. It is difficult to add, and as a result, it becomes difficult to separate the desiccant, so it may be easier to pry with the tool from the beginning. That is, in the above-mentioned proposal, since the tip of the operator's finger is inserted into the window hole portion remaining in a crescent shape at both ends in the width direction of the band-like part, the band-like part is picked from both sides in the width direction. As a result, it is difficult to apply a sufficient peeling force to the inner plug member, and there is a possibility that an easy removal operation of the inner plug member may be hindered. Alternatively, even if the band-like portion is lifted by the tip of the finger inserted in the window hole portion and one end thereof is torn off, it is not easy because it is difficult to apply force to the finger.

  The present invention has been made in view of such circumstances, and the object of the present invention is to separate and recover desiccant at the time of disposal after use, or to separate and dispose of the desiccant. An object of the present invention is to provide a moisture-proof stopper device in which a member containing an agent can be easily removed from a cap without requiring a special tool.

In order to achieve the above object, in the present invention, with respect to a cap that is formed in a lid shape from the peripheral wall portion and the top wall portion and covers the mouth portion of the container so as to be openable and closable, An accommodating member having a vent hole for exerting the function of a desiccant is fitted or engaged by a pushing operation from the lower end opening side of the cap to the top wall portion side, and the mouth is closed when the cap is closed. Ri Na is mounted to be positioned radially inward than parts, as the upper Symbol housing member, between the cap by relative containment member for applying a peeling operation force to the lower end opening of the cap An operation piece for disengaging the fitting or engagement is provided, and as the operation piece, a synthetic resin is formed such that one end of the operation piece is coupled to a wall portion constituting the housing member and the other end forms a free end. The housing member is formed by molding. As a target moisture plug device consisting formed in the body, it was decided to include the following specific matters.

In the moisture barrier device having such a premise configuration , the operation piece is formed integrally with the housing member, and the other end of the operation piece is a free end. The part can be easily and reliably grasped and grasped. For this reason, for example, when the container is discarded, it is possible to easily apply an operation force to the housing member to be peeled off from the cap by grasping the operation piece and pulling the operation piece forward. Then, the fitting or engagement between the cap and the housing member is released by this peeling operation force, and the housing member is removed from the cap. As a result, the desiccant contained in the accommodation space is separated and recovered from the cap and the accommodation member, and this desiccant can be easily separated from the synthetic resin material such as the accommodation member and discarded. . Further, drying agents when brought into temporarily mounted housing member by accommodating the desiccant to caps is to avoid a situation where non-exchangeable, easily removed to give the accommodating member in the case of a moisture-proof plug device of the premise construction In addition, since the housing member is mounted again by being pushed into the cap, the desiccant can be replaced by removing the housing member using the operation piece, so that the life of the moisture-proof function and the moisture-proof stopper are reduced. The apparatus can be reused.

As specific matters provided by the present invention, it is possible to further facilitate and ensure the operation of removing the housing member and to stably hold the operation piece during normal use by doing the following. That is, an engagement receiving portion for releasably engaging the other end of the operation piece is integrally formed on the wall portion of the housing member to which one end of the operation piece is coupled, The other end is engaged with the engagement receiving portion and the other end is extended to the lower end opening side of the cap. Configure to enable state conversion . In this way , when the normal moisture-proof function is used, the other end of the operation piece is engaged with the engagement receiving portion, the operation piece is held out of the way, and the housing member is removed. If the other end is converted to a state where the other end extends to the lower end opening side of the cap by releasing the above-mentioned engagement and bending it at one end position of the operation piece, the other end side portion of the operation piece can be more easily and reliably grasped. It becomes possible to make it possible to apply a peeling operation force.

In addition , as the operation piece, in the state where the other end is engaged with the engagement receiving portion, an intermediate portion from one end to the other end is bent so as to be convex to the lower end opening side of the cap. The elastic restoring force based on the bending of the part is applied to the side that maintains the engaged state with the engagement receiving portion with respect to the other end . As a result , when the other end of the operation piece is engaged with the engagement receiving portion, the intermediate part of the operation piece protrudes with a convex radius with respect to the lower end opening side of the cap, that is, protrudes in an arch shape. The protruding intermediate portion can be easily pinched with fingers, and the other end can be easily converted to a state where the other end extends to the lower end opening side of the cap by easily pinching and releasing the engagement. . Moreover, since the state where the other end of the operation piece is engaged with the engagement receiving portion is reliably maintained by the action of the elastic restoring force based on the bending of the intermediate portion, the operation piece is unexpectedly detached in the normal use state. It is definitely prevented from getting in the way.

Further , the operation piece in the bent state penetrates from a position where one end of the operation piece is coupled to the wall portion of the housing member so as to be able to displace inward and outward, and the housing member is operated as described above. piece was decided to synthetic resin molded in a state located in the interior of the housing space side (claim 1). In such a case, when the housing member is attached to the cap, the intermediate portion and the other end side of the operation piece are inserted into the through hole, and the intermediate portion is placed so that the other end side comes out of the through hole. The operation piece is pushed in while forcibly bending, and the other end is engaged with the engagement receiving portion and assembled. Then, when the accommodating member is pushed into the cap in a state where the desiccant is accommodated in the accommodating space, the accommodating member is attached. In this state, even if an object collides with the operation piece and the engagement with the engagement receiving portion is disengaged, a restoring force to the accommodation space side acts on one end of the operation piece by the above assembling work. Therefore, the other end side of the operation piece is maintained in contact with the wall portion of the housing member and the like, and the operation piece is prevented from hanging or protruding from the lower end opening of the cap to the lower side or the like. .

In the above invention, the housing member may be provided with a filter made of a non-woven fabric so as to prevent intrusion of the powdery material from the through hole into the housing space and allow only ventilation, and as a filter in this case It may be assumed to be from the operation piece of the engagement joined to the wall portion of the receiving member so as to cover the holes in the housing space side located across the through hole (claim 2). In this case, even if some object collides with an intermediate portion bent in a convex shape and an external force is applied to the operation piece to push the operation piece toward the accommodation space, or Even if the restoring force to the housing space side is strongly applied, the movement of the operation piece is restricted or prevented by the operation piece hitting the filter. Thereby, as a result of maintaining the state in which the above-described intermediate portion is bent with a convex radius and protrudes toward the lower end opening side, the operation piece can be reliably maintained in a state where it can be easily pinched and disengaged with fingers. become. In addition, the relatively large through-holes can be blocked to prevent the powdery material from entering the accommodation space, and the air-permeable can also serve as a vent hole.

As described above, according to the moisture-proof plug device of claim 1 or claim 2 , the operation piece is formed integrally with the housing member, and the other end of the operation piece is a free end. It becomes possible to easily and surely grasp and grasp the portion on the other end side which is a free end. For this reason, for example, when the container is disposed of, the operation member can be easily given an operation force to the side to be peeled off from the cap by grasping the operation piece and pulling it forward. Since the fitting or engagement with the member is released, the receiving member can be easily removed from the cap without the need for other special tools. This makes it easy to separate or recover the desiccant contained in the storage space from the cap or housing member, or to separate and discard the desiccant from the synthetic resin material such as the housing member. To be able to.

Further, while it is possible to hold so as not to interfere the operation piece in the state in which the engagement of the other end of the operating piece in engagement receiving portion in a use state to exert moistureproof function normal, the housing member When removing the above-mentioned engagement and removing the other end into a state of extending to the lower end opening side of the cap, it is easier to grasp the part on the other end side of the operation piece and can be surely peeled off and an operation force can be applied. Can be.

Furthermore , when the other end of the operation piece is engaged with the engagement receiving portion, the intermediate portion of the operation piece protrudes with a convex radius with respect to the lower end opening side of the cap. Can be easily sandwiched. For this reason, it is possible to easily and reliably realize the work to release the engagement of the other end of the operation piece and to apply the peeling operation force. In addition, the engagement state between the other end of the operation piece and the engagement receiving portion during normal use can be reliably maintained by the action of the elastic restoring force based on the bending of the intermediate portion.

In particular , according to the moisture-proof plug device of the present invention , even if the operation piece receives an external force such as a collision and the other end and the engagement receiving portion are disengaged, the operation space is accommodated by assembling the operation piece. Since the restoring force to the side is preliminarily applied to the operation piece, it is ensured that the operation piece hangs down or protrudes downward from the lower end opening of the cap. The other end can be maintained in contact with the wall of the housing member.

In particular , according to claim 2 , even if an external impact force acts on the intermediate portion of claim 4 bent in a convex round shape, or even if the restoring force to the accommodation space side of claim 5 is excessive Even if it acts on it, the movement to the accommodation space side can be controlled or prevented by the operation piece hitting the filter. Accordingly, the operation piece is securely held in a state where the intermediate portion is bent with a convex radius and protrudes toward the lower end opening side, and can be reliably maintained as a knob portion that can be easily pinched with a finger. . In addition, the relatively large through hole can be blocked to prevent the powdery material from entering the accommodation space, and the through hole portion can also serve as a vent hole.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a moisture-proof stopper device according to an embodiment of the present invention. Reference numeral 2 denotes a container, 3 denotes a cap for opening or closing the mouth 21 of the container 2, and 4 denotes a desiccant (for example, silica gel). ) 5 is an accommodating member for accommodating the desiccant 4 inside, and 6 is a filter. FIG. 1 shows a normal use state in which the cap 3 is screwed into the mouth portion 21 of the container 2 to be in a closed state and the moisture-proof function by the desiccant 4 is exhibited. In the above-described plugged state, the housing member 5 is positioned in a state of entering the radially inner side of the mouth portion 21.

  The container 2 is configured as a bottomed cylindrical container having a central axis X of the mouth portion 21 as a cylindrical axis by a synthetic resin bottle or a glass bottle, for example, an oral drug such as a capsule or a tablet, or a powder It is used to contain foods that dislike moisture, such as granular and granular dietary supplements. A screw portion 211 for closing the cap 3 is formed on the outer peripheral surface of the mouth portion 21. In addition, as a container to which this invention is applied, the shape in particular is not limited, What is necessary is just to have the opening part 21 closed by the cap 3. FIG. In the following description, the direction in which the central axis X extends will be referred to as the vertical direction, and the upper side of FIG. 1 will be described as “upper” and the lower side as “lower”.

  The cap 3 is formed by integrally forming a peripheral wall 31 having an open lower end and a top wall 32 covering the upper end side of the peripheral wall 31 by synthetic resin molding. A screw portion 311 that fits into the screw portion 211 of the portion 21 is integrally formed. The means for closing the cap 3 and the mouth portion 21 includes, for example, engaging means for engaging with the concave and convex portions by pushing the cap over the mouth portion in addition to the fastening means using the screw portions 211 and 311 described above. Other means such as these may be used, and the present invention can be applied to these as well.

  As shown in FIG. 2 or FIG. 3, the housing member 5 has a bottomed cylindrical shape with the upper side open and the bottom bottomed, and is connected to the lower bottom wall portion 51 and the bottom wall portion 51. From the provided operation piece 52, a peripheral wall portion 53 rising from the periphery of the bottom wall portion 51, a flange portion 54 protruding outward from the upper end edge position of the peripheral wall portion 53, and an outer peripheral edge of the flange portion 54 A plurality of protruding engagement pieces 55a, 55a,..., 55b, 55b,... Are integrally formed by synthetic resin molding. A housing space 50 for the desiccant 4 is formed by the bottom wall 51, the peripheral wall 53, and the top wall 32 of the cap 3. Each of the engagement pieces 55a and 55b is formed in a tongue shape so as to be gradually thinned toward the protruding tip side so as to be easily bent, and has a long protruding length 55a and a short protruding length 55b. Are alternately arranged at predetermined intervals in the circumferential direction. The endless annular protrusion 541 protruding upward from the outer peripheral side position of the flange portion 54 receives the pressing force from the tip of the mouth portion 21 of the container 2 on the lower surface of the flange portion 54 in the closed state, and the top of the cap 3. By being in close contact with the inner surface of the wall 32, the housing space 50 and the inner space of the container 2 are blocked from the outer space of the container 2 and sealed. A convex portion 531 that protrudes radially inward is formed on the inner peripheral surface of the peripheral wall portion 53.

  The bottom wall portion 51 is a wall portion facing downward from the lower end opening of the cap 3, and the bottom wall portion 51 has a predetermined shape and size, and a through hole 511 serving as a vent hole communicating with the inside of the container 2, The engagement receiving portion 512 is integrally formed, and the operation piece 52 is continuously coupled by a coupling portion 521 that is one end thereof. The through hole 511 has a width (see FIG. 2) that is approximately 1/3 of the outer diameter of the bottom wall portion 51, is slightly shorter than the outer diameter of the bottom wall portion 51, and is longer than the entire length of the operation piece 52. A rectangular opening having a short length is formed so as to penetrate therethrough, and one end 521 of the operation piece 52 is coupled to one position in the longitudinal direction of the through hole 511, and the opening edge lower surface side at the other side position. The engagement receiving portion 512 is formed. The operation piece 52 is formed as a band plate portion 522 having an intermediate portion slightly narrower than the width of the through hole 511, and a hook-like engagement portion 523 constituting the other end of the operation piece 52 is formed. Furthermore, it has a narrow width. In addition, a part of the other side position side of the through hole 511 in which the engagement receiving part 512 is formed has a smaller opening width than the other part and is smaller than the width of the band plate part 522 of the operation piece 52. The narrowed portion 511a has a narrow opening width. That is, when viewed from the bottom, the narrowed portion 511a is overlapped by the minute dimension at the back of both sides in the width direction of the band plate portion 522 (see the narrowed portion 511a in FIG. 2).

  The operation piece 52 is bent upward at the coupling portion 521 as illustrated by a two-dot chain line in FIG. 3 so that the band plate portion 522 and the engagement portion 523 enter the accommodation space 50 side. At the same time, it is formed by molding a synthetic resin. At the time of molding, the band plate portion 522 of the operation piece 52 may be formed in any shape, whether in an extended state or a slightly curved state. When the housing member 5 is assembled, the operation piece 52 is bent downward with the coupling portion 521 as a fulcrum, and the band plate portion 522 is bent downward (curved) so as to protrude downward from the through hole 511. It pushes out and engages the engaging part 523 with the engaging receiving part 512 from above (see the state shown by the solid line in FIG. 3). At the time of this extrusion, the portion of the band plate portion 522 on the side of the engaging portion 523 is guided downward along the slope 513 constituting the narrowed portion 511a and finally gets over the edge constituting the narrowed portion 511a. It will be pushed down. In the engaged state in which the engagement portion 523 is engaged with the engagement receiving portion 512, the operation piece 52 is a state in which the band plate portion 522 is bent downward from the bottom wall portion 51 of the housing member 5 with a convex radius. And projecting downward to the outside and temporarily fixed to the housing member 5 (see FIG. 1 or FIG. 3).

  This temporary fixing will be described in more detail. As shown in FIG. 4A, the downward surface of the engaging portion 523 of the operation piece 52 abuts on the upward surface of the engagement receiving portion 512 to operate the temporary fixing. Further downward movement of the piece 52 is prevented, and the distal end surface of the engagement portion 523 receives the elastic restoring force accompanying the bending of the band plate portion 522 with respect to the lateral end surface of the engagement receiving portion 512. Thus, the operation piece 52 is maintained in a state of being engaged with the engagement receiving portion 512. In addition, in this engaged state, the width direction both side portions (see FIG. 2) of the band plate portion 522 located behind the engagement portion 523 are more than the width direction both side portions as shown in FIG. The narrow portion 511a having a narrow width is located below the narrow portion 511a in a state where the narrow portion 511a is climbed from the top to the bottom. For this reason, even if the band plate portion 522 of the portion moves upward, that is, disengages and attempts to move from the through hole 511 to the inside of the accommodating space 50, further upward movement is restricted by the narrowed portion 511a. Will be. In short, in the above engagement state, the operation piece 52 is prevented from moving downward relative to the housing member 5 by the engagement between the engagement portion 523 and the engagement receiving portion 512, and the upward relative movement is described above. The band plate portion 522 is reliably maintained in a state where it protrudes downward with a convex radius while being restricted by the constriction portion 511a and the relative movement on the side extending the curvature of the band plate portion 522 is also prevented. Become.

  Examples of the synthetic resin material that can realize such a flexible operation piece 52 that exhibits such flexibility or elastic restoring force include the following. For example, olefinic materials such as PE-LD (low density polyethylene), PE-LLD (linear low density polyethylene), PE-MD (medium density polyethylene) can be used alone, or any of these materials can be used. On the other hand, a blend of PE-HD (high density polyethylene), EVA (ethylene-vinyl alcohol copolymer resin), elastomer or the like may be used.

  The filter 6 (not shown in FIG. 3) shown in FIG. 1 or FIG. 4 is configured to have air permeability by mesh or non-woven fabric, etc., and prevents powdery substances from entering the accommodation space 50 through the through holes 511. In order to do so, it is attached so as to cover the through hole 511. That is, the filter 6 is attached so as to cover the through hole 511 that also serves as a vent hole when the stored item stored in the container 2 is not a tablet or the like but is a powdery product such as powder or granules, Thereby, while allowing only ventilation, the penetration of the powdery material into the accommodation space 50 is prevented, and at the same time, the desiccant in the accommodation space 50 in the container 2 is allowed to enter the container 2 in the opposite direction. Has come to stop. In the case of the present embodiment, after the synthetic resin molding of the housing member 5 and the assembly work for moving the operation piece 52 to the above-mentioned engagement state, they are joined by means such as adhesion or welding so as to cover the through hole 511. Can be attached. Specifically, an ultra-thin sheet nonwoven fabric is used as the filter 6 to prevent fine powder from entering the housing space 50 and allow only ventilation. An example of such a nonwoven fabric is DuPont Tyvek (trade name). This is a non-woven fabric formed into a sheet having air permeability by applying high heat to a continuous ultrafine polyethylene fiber having a diameter of 0.5 to 10 μm and bonding. Then, the operation piece 52 of the housing member 5 formed of the synthetic resin is pushed out from the housing space 50 through the through hole 511 as described above, and the engagement portion 523 is engaged with the engagement receiving portion 512 so that the operation piece 52 is moved. After the engagement state, the through-hole 511 is covered with the filter 6 from the accommodation space 50 side, that is, from the inner surface side of the bottom wall portion 51, and the filter 6 is attached by heat welding or ultrasonic welding around the filter 6. The housing member 5 is bonded and fixed to the inner surface of the bottom wall portion 51 (position on the housing space side with the through hole 511 interposed).

  In order to assemble the moisture-proof plug device of the above embodiment, first, the desiccant 4 made of, for example, silica gel is put into the housing space 50 of the housing member 5 after the operation piece 52 is brought into the above engagement state, In this state, it is pushed from the flange 54 side to the top wall 32 side from the lower end opening of the cap. By this pushing, the engaging pieces 55a and 55b around the flange portion 54 are fitted and mounted in a state of overcoming the convex portion on the inner peripheral surface of the peripheral wall portion 31 in the inner back portion of the cap 3, and are accommodated. 5 is attached and fixed to the cap 3 in a state where the desiccant 4 is accommodated therein (see FIG. 1).

  When the stored item in the container 2 (for example, a medicine such as a tablet) is consumed and emptied, the cap 3 is removed from the mouth portion 21 of the container 2 and the cap 2 is opened. Separate and collect. The work for this may be as follows. As shown in FIG. 5, a finger is put on the band plate portion 522 of the operation piece 52 from the lower end opening side of the cap 3 in the opened state, and the band plate portion 522 is sandwiched from both sides in the width direction and pulled to the near side. Then, the engagement between the engagement portion 523 and the engagement receiving portion 512 is released, and the operation piece 52 is bent with the coupling portion 521 as a fulcrum (see the operation piece 52 indicated by a one-dot chain line in FIG. 3). It is converted into a state that extends forward from the lower end opening and protrudes from the engagement portion 523 side. If the operating piece 52 is grasped and pulled forward, that is, if the force to be peeled off from the cap 3 is applied to the housing member 5, the engaging pieces 55 a and 55 b slide from the inner surface of the peripheral wall portion 31 of the cap 3. Disengagement (engagement or release of fitting), the housing member 5 is easily removed from the cap 3. If the desiccant 4 is recovered from the removed housing member 5, the desiccant 4 can be separated and discarded. That is, it becomes possible to discard each of the housing member 5 and the like formed of a synthetic resin material and the desiccant 4 in a state of being reliably separated.

  In the operation of removing the housing member 5 described above, the operation piece 52 protrudes from the bottom wall portion 51 with a convex radius, and thus can be easily pinched with fingers from both sides in the width direction. That is, a force such as a pulling force can be easily applied. After the engagement is disengaged, the side of the engaging portion 523, which is the other end, becomes completely free and the operation piece 52 protrudes from the bottom wall portion 51. A peeling operation force for removing the housing member 5 can be applied easily and reliably. As described above, the removal work of the housing member 5 can be easily and reliably performed without using a special tool, and as a result, separation and collection of the desiccant 4 and separation and disposal can be easily and reliably realized. become.

  Moreover, when the filter 6 is fixed to the through-hole 511, the above-described removing operation of the housing member 5 can be more reliably realized. That is, since the filter 6 is fixed in a state of covering the through hole 511, something hits the band plate portion 522 that protrudes in a convex shape of the operation piece 52, so that the operation piece 52 is placed on the through hole 511 side. Even if a force that pushes into the (accommodating space 50 side) acts, the filter 6 prevents the upward movement of the operation piece 52 in addition to the upward movement restriction by the narrowed portion 511a. For example, even if the engaging portion 523 is disengaged upward from the engagement receiving portion 512 (inward direction of the housing member 5) and further attempts to get over the narrowed portion 511a from below, the engaging portion Since 523 hits the filter 6 and further movement of the engaging portion 523 is prevented by the filter 6, the band plate portion 522 is reliably held in the state of the convex radius. In other words, the knob portion (band plate portion 522) protruding in the form of a convex radius is reliably maintained in a state where it can be easily sandwiched and grasped by the fingers as described above. Thereby, the removal operation | work of the accommodating member 5 can be performed still more reliably.

  Furthermore, when the operation piece 52 is molded with synthetic resin so that the operation piece 52 is positioned in the accommodation space 50 as described above, and then the operation piece 52 is pushed out from the through hole 511, the vent hole is larger than necessary. Although the through-hole 511 is formed, the filter 6 is fixed and covered with such a relatively large through-hole 511, so that the contents stored in the container 2 are powdery materials such as powder and granules. Even if it exists, the penetration | invasion to the accommodation space 50 can be blocked | prevented reliably. That is, the filter 6 has a role of blocking the through-hole 511 which is a relatively large opening portion and preventing the intrusion of the powdery material, and the upper side of the operation piece 52 (on the accommodation space 50 side, that is, a portion protruding in a convex shape). It plays a role of restricting or preventing movement to the smaller side) and holding the knob 52 of the operation piece 52 in a protruding state and a function of causing the through hole 511 to function as a vent hole.

<Other embodiments>
In addition, this invention is not limited to the said embodiment, Various other embodiments are included.

  In the embodiment described above, the housing member 5 is attached to the cap 3 by engaging or fitting the engagement pieces 55a and 55b protruding from the periphery of the flange portion 54 with the inner peripheral surface of the peripheral wall portion 31 of the cap 3. However, the present invention is not limited to this. For example, the housing member is configured by omitting the flange portion and the engagement piece, and an annular attachment for fixing the peripheral wall portion of the housing member to the inner surface of the top wall of the cap. The portion may be protruded downward, and the annular mounting portion and the peripheral wall portion of the housing member may be engaged or fitted by receiving a pushing operation force from the lower end opening of the cap.

  In the above embodiment, the other end of the operation piece 52 is the engaging portion 523, and the engaging portion 523 is engaged with the engagement receiving portion 512 in the normal use state. Simply, the other end of the operation piece having one end coupled to the bottom wall portion of the housing member may be suspended to be completely free.

It is a partially abbreviated sectional view showing a closed state of an embodiment of the present invention. It is a bottom view of the accommodating member of FIG. FIG. 2 is a partially omitted perspective view showing a state where the housing member of FIG. 1 is cut in half. FIG. 4A is a partially enlarged view showing an engaged state of an operation piece, FIG. 4A is a partially enlarged view in the state of FIG. 1, and FIG. 4B is a partially omitted view taken along line AA in FIG. FIG. It is the perspective view which looked at the cap of the open state from the lower end opening side.

Explanation of symbols

2 Container 3 Cap 4 Desiccant 5 Housing member 6 Filter 21 Mouth portion 31 Peripheral wall portion 32 Top wall portion 50 Housing space 51 Bottom wall portion (wall portion constituting the housing member)
52 Operation piece 53 Peripheral wall part 511 Through-hole (vent hole)
512 engagement receiving portion 521 coupling portion (one end)
522 Strip (intermediate part)
523 engaging part (other end)

Claims (2)

A cap that is formed in a lid shape from the peripheral wall portion and the top wall portion and covers the mouth portion of the container so as to be openable and closable, and a housing space for accommodating the desiccant therein, and a vent hole for exerting the function of the desiccant Is fitted or engaged by a pushing operation from the lower end opening side of the cap to the top wall portion side, and is positioned radially inward from the mouth portion in the closed state of the cap. The accommodation member is provided with an operation piece for releasing the fitting or engagement with the cap by applying a pulling operation force to the lower end opening side of the cap with respect to the accommodation member. The operation piece is a moisture-proof stopper device that is integrally formed with the housing member by synthetic resin molding so that one end of the operation piece is coupled to a wall portion constituting the housing member and the other end forms a free end ,
An engagement receiving portion for integrally engaging and disengaging the other end of the operation piece is integrally formed on the wall portion of the housing member to which one end of the operation piece is coupled,
The operation piece is formed so that one end thereof can be bent based on the flexibility of the material, the other end is engaged with the engagement receiving portion, and the other end is the lower end of the cap. While it is configured to be convertible to a state extending to the opening side,
In a state where the other end of the operation piece is engaged with the engagement receiving portion, an intermediate portion from one end to the other end of the operation piece is bent so as to be convex toward the lower end opening side of the cap, and this intermediate portion The elastic restoring force based on the bending is configured to act on the side maintaining the engaged state with the engagement receiving portion with respect to the other end,
A through hole is formed in the wall portion of the housing member so that the bent operation piece can be displaced inward and outward from a position where one end of the operation piece is coupled. piece is that is a synthetic resin molded into a state of being located inside the housing space side,
Anti Shimesen and wherein the. The moisture barrier device according to claim 1 ,
The housing member includes a filter made of a non-woven fabric so as to prevent intrusion of powdery material from the through hole into the housing space and allow only ventilation, and this filter is more than the operation piece in the engaged state. A moisture-proof plug device joined to a wall portion of the housing member so as to cover the through-hole at a position on the housing space side with the through-hole interposed therebetween.

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