JP5877634B2 - Cap and chemical feeder - Google Patents

Description

  The present invention relates to a cap and a chemical solution supply device, in particular, in a state of being attached to the mouth of a container, such as a chemical solution container used in a chemical solution supply device for supplying a chemical solution used for fragrance, washing toilets, etc. The present invention relates to a cap that is used without being removed, and a chemical solution feeder using the cap.

  2. Description of the Related Art Conventionally, a chemical supply apparatus for obtaining toilet cleaning and aroma effect has been used in flush toilets. Various types of this type of chemical supply apparatus have been proposed depending on the type of toilet bowl to be attached. For example, for a type having a water storage tank, a chemical liquid supply device is arranged in the hand washing section at the top of the water storage tank, and in this type of chemical liquid supply apparatus, along with running water supplied to the hand washing section from a water supply pipe on the hand washing section, The chemical solution in the chemical solution container is supplied into the water storage tank.

  On the other hand, there are also used toilets that do not have a hand-washing portion at the upper part of the water storage tank, or types that do not have the water storage tank itself. For this, a chemical supply device is directly attached to the rim of the toilet. This type of liquid medicine supply device is suspended in a toilet bowl by locking a flexible hook provided on a support body that supports the liquid medicine container to the rim of the toilet bowl. A chemical solution receiving part is attached to the support below the chemical container, so that the chemical solution supplied from the chemical container to the chemical solution receiving part is exposed to running water during washing so that the chemical solution is supplied into the toilet. It is configured.

  FIG. 11 shows a basic structure of a chemical solution supply apparatus of the type attached to the hand-washing section at the upper part of the water storage tank (see, for example, Patent Document 1). The chemical liquid supply apparatus includes a support body 101 that supports a chemical liquid container 100 (shown in FIG. 12), and a long leg portion 102A of a chemical liquid guide member 102 attached to the support body 101 serves as a sink hole in a hand washing section of a water storage tank. Arranged to be inserted.

  As shown in FIG. 12, the chemical solution container 100 has a dome-shaped body portion 110 and a mouth portion 111 provided on the lower surface of the body portion 110, and a cap 112 is attached to the mouth portion 111. Yes. As shown in FIG. 13, the cap 112 includes an annular main body 113 and a bottom wall 114 that closes the central hole. In use, the cap 112 is attached to the mouth portion 111, and the tip of the connection portion 103 </ b> A of the supply portion 103 of the chemical solution supply apparatus is inserted into the bottom wall portion 114 of the cap 112 with the cap 112 facing down. Accordingly, the thin wall portion 119 is broken and the bottom wall portion 114 is separated from the main body portion 113, so that the chemical solution in the chemical solution container 100 is supplied to the chemical solution supply device. Engagement members 115 and 116 are formed between the mouth portion 111 and the cap 112 of the container so that the cap 112 is engaged with the cap portion 111 so as not to come out of the mouth portion 111. However, it is regulated so that the cap 112 is not accidentally removed from the mouth portion 111 (see, for example, Patent Document 2).

  The chemical solution supplied to the chemical solution supply device is supplied to the guide member 102 from the outlet hole 104 at the lower end of the supply unit 103 through the supply unit 103 extending in the vertical direction. And the chemical | medical solution supplied to the guide member 102 is washed away by the water supplied to a hand-washing part at the time of water washing, and flows in into a water storage tank.

  As shown in FIG. 11, the support 101 of the chemical solution supply apparatus is further provided with an adjustment mechanism. This adjustment mechanism prevents an excessive outflow or reverse flow of the chemical solution from the chemical solution container 100 to the guide member 102 when the temperature of the chemical solution container 100 fluctuates due to contact with running water or the like. A buffer chamber S supported by the body 101, an air circulation hole 106 provided in the upper portion of the buffer chamber S, and a buffer hole 107 provided in the lower portion of the supply unit 103 so as to communicate with the buffer chamber S are provided. Yes.

  The chemical solution supply apparatus having the above configuration operates as follows. When the temperature rises and the pressure in the chemical solution container 100 increases, the chemical solution in the chemical solution container 100 flows out of the buffer hole 107 and flows into the buffer chamber S. On the other hand, when the temperature decreases and the pressure in the chemical solution container 100 decreases, the chemical solution in the buffer chamber S is drawn back into the chemical solution container 100 through the buffer hole 107. As described above, in the chemical solution supply device described in Patent Document 1, even if the temperature change is repeated, the presence of the buffer chamber S prevents the chemical solution from flowing out excessively. As a result, the chemical solution can be led out from the chemical solution container 100 to the guide member 102 in an accurate amount, and long-term use can be realized.

  On the other hand, in the chemical solution supply apparatus described in Patent Document 1, the buffer chamber S has a lower member 108 having a bottom wall and a side wall supported by the support 101 and an upper member 109 having a side wall and an upper wall from above. It is formed by fitting. In the fitting structure, since the boundary 105 between the side wall of the upper member 109 and the side wall of the lower member 108 is located at the lower part of the buffer chamber S, it touches the water supplied to the hand-washing part. It has become easier. Then, water may enter the buffer chamber S through the boundary 105 due to capillary action or the like. When the chemical solution in the buffer chamber S is diluted by the infiltrated water, the diluted chemical solution is changed by temperature change. It is absorbed into the chemical solution container 100 and diluted to the chemical solution in the chemical solution container 100. This not only prevents the medicinal effect due to an appropriate amount of the chemical solution, but also lowers the original viscosity of the chemical solution, which may cause the chemical solution to flow out of the chemical solution container 100 and impair long-term use.

  As described above, in this type of chemical solution supply apparatus, it is important to maintain the concentration of the chemical solution in the chemical solution container appropriately in order to enable long-term use of the chemical solution. Various devices have been made to prevent the dilution of the chemical solution (for example, see Patent Document 3).

JP 2004-300861 A JP 2009-84803 A (see FIG. 2) JP 2006-283540 A (see FIG. 8)

  By the way, the chemical solution container having the above-described configuration is formed by a hollow molding method widely used as a method for manufacturing a thermoplastic resin container. The hollow molding method is roughly classified into a hot parison method and a cold parison method. The hot parison method is a method in which the injection-molded parison is blown by adjusting the temperature in-line following the parison formation. On the other hand, the cold parison method is a method in which the parison formation is completely separated from the blow molding, and the injection-molded parison is once taken out and stored as a preform. This is a method of performing biaxial stretch blow molding with a blow molding machine. While the latter is highly productive, the cost of molding equipment is high. On the other hand, the former is energy-saving and is superior to the latter in terms of molding stability and molding equipment costs. Molded by the molding method.

  As shown in FIG. 12, the chemical container 100 molded by the hot parison method partially has a base end portion of the mouth portion 111 (boundary portion with the body portion 110 of the mouth portion 111) due to the characteristics of the molding method. It is necessary to form a thick wall. Therefore, the cap 112 is also formed in a shape corresponding to the shape of the thick portion 117 of the chemical solution container 100.

  However, in view of the productivity of the chemical container, it is also desired to mold the chemical container by the cold parison method. In the chemical container 100 ′ molded by the cold parison method, as shown in FIG. Unlike the chemical container 100 molded by the hot parison method, it is necessary to form the base end portion of the mouth portion 111 with a thin wall thickness due to the characteristics of the method.

  When the mouth portion 111 of the chemical solution container 100 ′ formed by the cold parison method is closed by the cap 112 having the above-described configuration, a gap is formed between the tip of the engaging member 116 of the cap 112 and the body portion 110 of the chemical solution container 100 ′. 118 will occur. In this case, there is a problem that the cap 112 is easily removed when the user accidentally removes the cap 112 from the mouth portion 111 of the container 100. In addition, when the chemical solution container 100 ′ is used in the above-described chemical solution supply device, there is a possibility that water or air supplied to the hand-washing section or the toilet when washing with water may enter the chemical solution container 100 ′ from the gap 118 described above. As a result, there arises a problem that the chemical solution in the chemical solution container 100 'is diluted. Thus, the effective use of the chemical solution container is hindered even if the device for preventing the dilution of the chemical solution is not provided on the side of the chemical solution container.

  The present invention has been made by paying attention to the above-mentioned problems, and a cap that can effectively shield the ingress of water or the like into the container without the cap being easily removed, and the use of this cap. An object of the present invention is to provide a chemical supply device.

The above-mentioned object of the present invention is a cap attached to the mouth portion of a container having a body portion for containing a liquid material and a mouth portion for pouring the liquid material in the body portion, and an annular main body portion, A bottom wall portion that is detachably provided in the main body portion and closes an opening of the mouth portion of the container, and the main body portion includes at least an outer wall portion that covers an outer peripheral surface of the mouth portion of the container, wall, and a retaining portion for engaging the engagement step portion formed on an outer peripheral surface of the mouth portion projecting toward the outer peripheral surface of the mouth portion of the container, that is provided below the retaining section and a shielding portion, the lower end of the shielding part is in contact with the upper surface of the body portion of the container, or by forming the following gap 0.3mm between the upper surface of the body portion of the container It is achieved by there cap.

  In a preferred embodiment of the present invention, the shielding part is integrally provided at a lower part of the outer wall part.

  In another preferred embodiment of the present invention, the shielding portion is provided integrally with a protruding portion that protrudes radially outward of the cap provided on the outer wall portion.

  In a further preferred embodiment of the present invention, the protruding portion is provided at a lower end portion of the outer wall portion, and the outer wall portion has a thickness provided at a proximal end portion of the mouth portion of the container. While being in contact with the upper surface of the thick part, the shielding part is provided so as to cover the peripheral surface of the thick part of the container.

  In a further preferred embodiment of the present invention, the shielding portion is characterized in that the outer peripheral surface is inclined inward in the radial direction of the cap as it goes downward.

  In a further preferred aspect of the present invention, the main body portion connects the inner wall portion contacting the inner peripheral surface of the mouth portion of the container, the outer wall portion, the inner wall portion and the outer wall portion. And a flange portion in contact with the top surface of the mouth portion, and the bottom wall portion is provided on the inner wall portion via a thin portion.

  The object of the present invention is to supply a chemical solution comprising a chemical solution container having a barrel portion for containing the chemical solution and a mouth portion for pouring the chemical solution in the barrel portion, and a cap having the above-described configuration attached to the mouth portion of the chemical solution container. It is also achieved with a vessel. The chemical supply device is used by being attached to a chemical supply device attached to a hand-washing portion of a water storage tank of a flush toilet or a rim of a toilet bowl. In use, the cap is attached to the chemical supply device with the cap attached to the mouth of the chemical container with the cap down, and the toilet bowl is attached by the action of running water flowing through the hand-washing part and toilet when washing the chemical liquid in the chemical container. By supplying to etc., the toilet cleaning effect and aroma effect are obtained.

  According to the cap and the chemical solution supply device of the present invention, it is possible to prevent the user from removing the cap, and to effectively block the entry of air, water, etc. into the container.

It is a front view which shows the external appearance of the chemical | medical solution supply device which is one Embodiment of this invention. It is sectional drawing which shows the internal structure of the principal part of FIG. It is sectional drawing which expands and shows a part of cap of FIG. It is a figure which shows the internal structure of the principal part of the state which attached the chemical | medical solution supply device of embodiment of FIG. 2 to the chemical | medical solution supply apparatus. It is sectional drawing which expands and shows a part of FIG. It is sectional drawing which shows the internal structure of the principal part of the chemical | medical solution supply device which is other embodiment of this invention. It is sectional drawing which expands and shows a part of cap of FIG. It is a figure which shows the internal structure of the principal part of the state which attached the chemical solution feeder of embodiment of FIG. 6 to the chemical solution supply apparatus. It is sectional drawing which expands and shows a part of FIG. It is sectional drawing which shows the internal structure of the principal part of the chemical | medical solution supply device which is other embodiment of this invention. It is a disassembled perspective view which shows the structure of a chemical | medical solution supply apparatus. It is a front view which shows the external appearance of the chemical | medical solution container shape | molded by the hot parison method, and the conventional cap with which this chemical | medical solution container was mounted | worn. It is sectional drawing which shows the internal structure of the principal part of FIG. It is sectional drawing which shows the internal structure of the principal part of the chemical | medical solution container shape | molded by the cold parison method and the conventional cap with which this chemical | medical solution container was mounted | worn.

  Hereinafter, the cap concerning the present invention is explained in detail based on the embodiment shown in an accompanying drawing. The cap according to the present invention is attached to a mouth portion of a container that can contain liquid substances such as chemicals, cosmetics, and fragrances, and is used without being removed while attached to the mouth portion of the container. For example, it can be suitably used for a cap of a chemical solution container that is attached to a hand washing part of a water storage tank of a flush toilet or a rim of a toilet bowl and used for a chemical solution supply device that supplies the chemical solution to a toilet bowl or the like . In addition, the cap which concerns on this invention can be used also as a cap of the container of not only this but a various aspect.

  FIG. 1 shows an external appearance of a chemical solution supply device using a cap according to an embodiment of the present invention, and FIG. 2 shows an internal structure of a main part of the chemical solution supply device of FIG. The chemical solution feeder has a configuration in which a cap 2 is attached to the mouth portion 4 of the chemical solution container 1 that accommodates the chemical solution therein, and the cap 2 is attached to the mouth portion 4 of the chemical solution container 1 as shown in FIG. In this state, the cap 2 is used upside down. This chemical solution supply device can be used for any type of chemical solution supply device that can be attached to the hand-washing section at the top of the water storage tank, or that can be attached to the toilet rim.

  The chemical liquid container 1 is formed by molding the PET or other hard synthetic resin by the above-described cold parison method, and has a hollow body portion 3 for storing a liquid substance and a cylindrical shape that is continuously formed integrally with the body portion 3. The mouth part 4 is provided. The mouth part 4 is for pouring out the chemical solution in the body part 3, is formed with a smaller diameter than the body part 3, and the spout 40 above the mouth part 4 is sealed by the cap 2. The chemical liquid container 1 is entirely formed of a transparent or translucent material so that the remaining amount of a liquid substance such as a chemical liquid stored inside from the outside can be confirmed. In addition, as a raw material of this chemical | medical solution container 1, not only a synthetic resin but glass etc. can be illustrated preferably.

  On the outer peripheral surface of the mouth portion 4 of the chemical liquid container 1, an engagement step portion 41 that protrudes from the peripheral surface is formed as one round. The cap 2 is fixed to the mouth portion 4 by engaging the engaging step portion 41 with a retaining portion 26 formed on the cap 2 described later.

  The cap 2 includes an annular main body portion 20 and a disc-shaped bottom wall portion 21 that closes a hole at the center thereof, and is entirely formed of a soft synthetic resin. The main body portion 20 includes a cylindrical inner wall portion 22 that contacts the inner peripheral surface of the mouth portion 4, a cylindrical outer wall portion 23 that covers the outer peripheral surface of the mouth portion 4, and the inner wall portion 22 and the outer wall portion 23. The flange portion 24 is in contact with the top surface of the mouth portion 4.

  The bottom wall portion 21 is detachably connected to the lower portion of the inner wall portion 22 via the thin portion 25 and closes the spout 40 of the mouth portion 4 of the chemical solution container 1. In use, the thin wall portion 25 is broken by inserting the thin wall portion 25 into the distal end of the connection portion 12 of the supply portion 11 of the medicine supply device 10 shown in FIG. 4, and the bottom wall portion 21 is separated from the inner wall portion 22. As a result of the separation, the chemical solution in the chemical solution container 1 is supplied from the spout 40 of the mouth portion 4 to the drug supply device 10.

  A tapered retaining portion 26 protruding toward the outer peripheral surface of the mouth portion 4 of the chemical liquid container 1 is integrally formed on the inner peripheral surface of the outer wall portion 23 over the entire circumference. In the present embodiment, as shown in FIG. 3, the retaining portion 26 includes inclined surfaces 26 b and 26 c that are inclined outward with a flat surface tip portion 26 a interposed therebetween, and the upper inclined surface 26 b is a mouth portion. The four engaging step portions 41 are in surface contact. The shape of the retaining portion 26 is not limited to that of the present embodiment. For example, the distal end portion 26a may have a convex curved surface, and the inclined surfaces 26b and 26c sandwich the distal end portion 26a. Either an acute angle or an obtuse angle may be formed.

  Thus, the cap 2 is fixed to the chemical solution container 1 by the retaining portion 26 being hooked and engaged with the engagement step portion 41, whereby the user accidentally removes the cap 2 from the chemical solution container 1. Even so, the cap 2 is restricted from being removed. Further, the chemical solution container 1 includes an engaging portion between the chemical solution container 1 and the cap 2, a flange portion 24 of the cap 2 that contacts the top surface of the mouth portion 4 of the chemical solution container 1, and the mouth portion 4 of the chemical solution container 1. The three stoppers of the inner wall portion 22 of the cap 2 that comes into contact with the inner peripheral surface are sealed with high accuracy. As a result, the chemical solution in the chemical solution container 1 leaks to the outside, or water or air enters the chemical solution container 1. Is prevented from entering and mixing with chemicals.

  The outer wall portion 23 is integrally provided with a shielding portion 27 below the retaining portion 26. The shielding part 27 extends downward and reaches near the upper surface of the body part 3 of the chemical liquid container 1. Here, “below the retaining portion 26 of the outer wall portion 23” means the lower end of the retaining portion 26 where the lower inclined surface 26 c of the retaining portion 26 intersects the inner peripheral surface of the outer wall portion 23. With reference to the part 26d, the lower part 26d of the retaining part 26 is used as a boundary to indicate the lower part.

  In this embodiment, the shielding part 27 is provided below the retaining part 26 of the outer wall part 23 so as to be continuous with the outer wall part 23 in the vertical direction, and between the upper surface of the body part 3 of the chemical liquid container 1. By eliminating almost no gap for the user's fingers and nails to enter, the user cannot easily remove the cap 2 from the chemical solution container 1. Further, even when the user tries to remove the cap 2 from the chemical solution container 1 and manipulates the lower end of the shielding portion 27, the retaining portion 26 is long because the distance to the engaging portion between the chemical solution container 1 and the cap 2 is long. The diameter is increased, and the engagement with the engagement step portion 41 of the mouth portion 4 is difficult to come off. This effectively prevents the cap 2 from being removed and prevents the engaging portion from being directly touched by the user's finger or nail. It is prevented that the catch (engagement state) with the stepped portion 41 becomes weak. As a result, the chemical solution container 1 is accurately sealed by the engaging portion. Note that the lower end of the shielding part 27 may be in contact with the upper surface of the body part 3, or a slight gap (for example, about 0.3 mm) may be formed between the lower surface of the shielding part 27 and the upper surface of the body part 3. Good.

  In the present embodiment, the outer peripheral surface of the shielding portion 27 is inclined toward the radially inner side of the cap 2 from the upper end to the lower end. Accordingly, when the chemical solution feeder is used, that is, as shown in FIGS. 4 and 5, the chemical solution supply device 10 is attached to the chemical solution supply device 10 so that the chemical solution supply device 10 is attached to the hand-washing section or the toilet rim above the water storage tank. At the time of washing in the flush toilet, the water supplied to the hand-washing part and the toilet splattered into the chemical liquid container 1, and the scattered water flowed down through the trunk part 3 of the chemical liquid container 1 and was transmitted to the cap 2. Even in this case, since the shielding portion 27 is inclined downward toward the outside as it goes downward, the water transmitted to the cap 2 travels through the shielding portion 27 to the cap 2 and the chemical solution container. 1 flows away in a direction away from the boundary B (see FIG. 5) with the body 3. Even when the water supplied to the hand-washing part or the toilet bowl is directly scattered on the cap 2 at the time of washing with water, the scattered water is shielded by the shielding part 27 and is prevented from entering the inside of the cap 2. In this way, as a result of preventing the water scattered in the chemical solution container 1 and the cap 2 from entering the cap 2, the chemical solution in the chemical solution container 1 is prevented from being diluted.

  In the present embodiment, the outer peripheral surface of the shielding part 27 is inclined toward the inner side in the radial direction of the cap 2 as it goes downward. Although it is the inclined surface which can prevent intrusion, it is not necessarily restricted to this, It may be extended in the perpendicular direction and may incline toward the radial direction outer side of the cap 2 as it goes below. .

  FIG. 6 shows an internal structure of a main part of a chemical solution feeder in which a cap 2 ′ according to another embodiment of the present invention is used. The basic configuration of the chemical solution container 1 and the cap 2 ′ of this embodiment is the same as that of the above-described embodiment, and the detailed description is omitted by attaching the same reference numerals to the corresponding configurations here. To do.

  In the illustrated cap 2 ′, as shown in FIGS. 6 and 7, the shielding portion 27 ′ is integrally provided below the retaining portion 26 of the outer wall portion 23. Compared with 27, the cap 2 is provided at a position shifted outward in the radial direction. That is, a tapered retaining portion 26 protruding toward the outer peripheral surface of the mouth portion 4 is integrally formed on the inner peripheral surface of the lower end portion of the outer wall portion 23 over the entire circumference, and the lower end portion of the outer wall portion 23 is The outer peripheral surface projects outward in the radial direction of the cap 2 ′, and a shielding portion 27 ′ is integrally formed with the projecting portion 23 A. This shielding part 27 ′ also extends downward and reaches near the upper surface of the body part 3 of the container 1. As in the above embodiment, the lower end of the shielding portion 27 ′ may be in contact with the upper surface of the trunk portion 3, or a slight gap (for example, about 0.3 mm) between the upper surface of the trunk portion 3. If it is, it may be formed.

  The outer peripheral surface of the shielding portion 27 ′ is also inclined toward the radially inner side of the cap 2 ′ from the upper end to the lower end. Accordingly, as shown in FIGS. 7 and 8, when the chemical solution feeder is used, the shielding portion 27 ′ is inclined downward toward the outside as it goes downward, so that the chemical solution container 1 and the cap 2 ′ are washed during washing. Since the water splashes in the direction away from the boundary B (see FIG. 8) between the cap 2 ′ and the body part 3 of the chemical solution container 1, it is effectively prevented from entering the cap 2 ′. It has become.

  Also in the embodiment of FIG. 6, the shielding part 27 ′ reaches near the upper surface of the body part 3 of the chemical solution container 1, and there is no gap between the user's fingers and nails between the upper surface of the body part 3. It is regulated so that the user cannot easily remove the cap 2 ′ from the chemical solution container 1. Furthermore, even if the user tries to remove the cap 2 ′ by tampering with the lower end of the shielding portion 27 ′, the retaining portion 26 has a larger diameter because the distance to the engaging portion between the chemical liquid container 1 and the cap 2 ′ is long. As a result, it is difficult for the mouth portion 4 to be caught with the engaging step portion 41, thereby effectively preventing the cap 2 ′ from being removed. In addition, since the engaging portion is not directly touched by the user's finger or nail, the engaging portion is damaged, and the catch (engaged state) between the retaining portion 26 and the engaging step portion 41 is weak. As a result, the chemical liquid container 1 is accurately sealed by the engaging portion.

  In addition to this, the cap 2 ′ in the embodiment of FIG. 6 can be suitably used for a chemical solution container formed by the hot parison method described above. As shown in FIG. 10, the chemical solution container 1 ′ formed by the hot parison method has a thick wall partly thick at the base end portion of the mouth portion 4 (boundary portion with the body portion 3 of the mouth portion 4). Part 42 is formed. The lower end portion of the outer wall portion 23 of the cap 2 ′ is in contact with the upper surface of the thick portion 42, and the inner peripheral surface of the shielding portion 27 ′ of the cap 2 ′ is in contact with the peripheral surface of the thick portion 42. In addition, by setting the size of the chemical solution container 1 ′ or the cap 2 ′, the chemical solution container 1 ′ is brought into contact with the engaging portion between the chemical solution container 1 ′ and the cap 2 ′ and the thick portion 42 of the mouth portion 4. The outer wall portion 23 and the shielding portion 27 ′ of the cap 2 ′ in contact with each other, the flange portion 24 of the cap 2 ′ in contact with the top surface of the mouth portion 4, and the inner wall of the cap 2 ′ in contact with the inner peripheral surface of the mouth portion 4. The four stoppers of the part 22 are accurately sealed. Therefore, by using the cap 2 ′ of the embodiment of FIG. 6, the chemical solution in the chemical solution container 1 ′ leaks to the outside even in the chemical solution container 1 ′ formed by the hot parison method, or inside the chemical solution container 1 ′. It is possible to effectively prevent water and air from entering the water.

  As described above, the cap 2 ′ in the embodiment of FIG. 6 can be used for the chemical container 1 ′ molded by the hot parison method in addition to the chemical container 1 molded by the cold parison method. It is possible to seal the chemical containers 1 and 1 'suitably for any chemical container 1 and 1', so there is no need to change the shape of the cap according to the shape of the container, and the manufacturing cost is reduced. it can.

  As described above, according to the caps 2 and 2 'according to the present invention, the body portion of the chemical liquid containers 1 and 1' is provided below the engaging portion between the mouth portion 4 of the chemical liquid containers 1 and 1 'and the caps 2 and 2'. 3 is provided, the gap between the caps 2 and 2 'and the upper surface of the barrel 3 of the chemical liquid container 1 and 1' is almost eliminated. As a result, the user cannot easily remove the caps 2 and 2 'from the chemical liquid containers 1 and 1'.

  Further, even if the user tries to remove the caps 2 and 2 ′ and manipulates the lower ends of the shielding portions 27 and 27 ′, the distance to the engaging portion between the chemical solution containers 1 and 1 ′ and the caps 2 and 2 ′ is small. Since it is long, the retaining portion 26 does not expand in diameter, and it is difficult for the retaining portion 26 and the engaging step portion 41 to be caught. Therefore, it is difficult for the caps 2 and 2 'to come off from the chemical solution containers 1 and 1'.

  Further, since the engaging portion is not directly touched by the user's finger or nail, the engaging portion is damaged or the catch (engaged state) between the retaining portion 26 and the engaging step portion 41 is weak. Is prevented. As a result, the chemical liquid containers 1 and 1 ′ are accurately sealed by the engaging portion, and the entry of foreign substances such as air and water into the chemical liquid containers 1 and 1 ′ can be effectively prevented.

  Further, when using the chemical solution container 1, 1 ′, flowing water supplied to the hand-washing section or the toilet bowl at the time of washing with water is scattered to the chemical solution container 1, 1 ′ and transmitted to the caps 2, 2 ′, or the caps 2, 2 In some cases, the water splashes directly onto ′, but the scattered water is effectively shielded by the shielding portions 27 and 27 ′ and flows down from the caps 2 and 2 ′. Therefore, as a result of preventing the scattered water from entering the caps 2 and 2 ', the chemical solution in the chemical solution containers 1 and 1' can be prevented from being diluted.

DESCRIPTION OF SYMBOLS 1,1 'chemical | medical solution container 2,2' cap 3 trunk | drum 4 mouth part 20 body part 21 bottom wall part 22 inner wall part 23 outer wall part 23A protrusion part 24 flange part 25 thin part 26 retaining part 27 shielding part 40 spout 41 Engagement step 42 Thick part

Claims (7)

A cap that is attached to the mouth of a container having a barrel containing liquid and a mouth for pouring the liquid in the barrel,
An annular main body, and a bottom wall that is separably provided on the main body and closes the opening of the mouth of the container;
The main body includes at least an outer wall covering an outer peripheral surface of the mouth of the container,
The outer wall portion protrudes toward the outer peripheral surface of the mouth portion of the container and engages with an engaging step formed on the outer peripheral surface of the mouth portion, and is provided below the retaining portion. is that and a shield portion,
The cap which the lower end of the said shielding part is contact | abutting on the upper surface of the trunk | drum of the said container, or forms the clearance gap of 0.3 mm or less between the upper surfaces of the trunk | drum of the said container .   The cap according to claim 1, wherein the shielding portion is integrally provided at a lower portion of the outer wall portion.   The cap according to claim 1, wherein the shielding portion is provided integrally with a protruding portion that is provided on the outer wall portion and protrudes radially outward of the cap. The cap according to claim 3,
The protruding portion is provided at a lower end portion of the outer wall portion, and the outer wall portion is in contact with an upper surface of a thick wall portion provided at a proximal end portion of the mouth portion of the container. The cap provided so that the said shielding part may cover the surrounding surface of the thick part of the said container.   The said shielding part is a cap in any one of Claims 1-4 which incline toward the radial direction inner side of this cap as the outer peripheral surface goes to the downward direction.   The main body part connects the inner wall part contacting the inner peripheral surface of the mouth part of the container, the outer wall part, the inner wall part and the outer wall part, and comes into contact with the top surface of the mouth part. The cap according to claim 1, further comprising a flange portion, wherein the bottom wall portion is provided on the inner wall portion via a thin portion.   A chemical solution comprising a chemical solution container having a barrel portion for storing a chemical solution and a mouth portion for pouring the chemical solution in the barrel portion, and a cap according to any one of claims 1 to 6 attached to the mouth portion of the chemical solution container. Feeder.

Images