JP2021104839A - Chemical solution supply tool and chemical solution supply device - Google Patents

Abstract

To provide a chemical solution supply tool and a chemical solution supply device that suppress liquid dripping from a coating part.SOLUTION: The present application discloses a chemical solution supply tool that can be attached to a container storing a chemical solution. The chemical solution supply tool includes a coating part having a coating surface to which the chemical solution is supplied, and at least one protrusion part protruding from the coating surface. The coating surface is formed with a liquid storage recessed part recessed so as to store the supplied chemical solution.SELECTED DRAWING: Figure 1

Description

The present invention relates to a drug solution supply device and a drug solution supply device used for supplying a drug solution having a massage function to the human body.

Various chemical solution feeders have been developed for applying chemical solutions while massaging the human body (see Patent Document 1). The chemical solution feeder of Patent Document 1 includes a tubular substrate that can be attached to the opening of a container, a plug portion that is displaced in the axial direction of the base in the base, and a pressing portion that elastically supports the plug portion. And have.

An opening region through which the drug solution flows out is formed at the tip of the substrate. The substrate has a retaining portion having a top that bulges toward the axis of the substrate so as to surround the opening region in order to prevent the stopper from coming out of the substrate through the opening region.

The plug portion includes an outer edge portion configured to be in contact with the retaining portion and a coating portion arranged inside the outer edge portion and exposed from the opening region. The stopper has a closed position in which the outer edge of the stopper contacts the retaining portion to close the flow path of the chemical solution to the opening region, and the outer edge portion is separated from the retaining portion to separate the flow path of the chemical solution to the opening region. It is configured to be displaceable from the open position. The coating portion is configured to supply the chemical solution flowing out of the opening region to the coating region (the human body portion to which the chemical solution is supplied).

The pressing portion is a spring-like member that urges the stopper portion so as to press the outer edge portion of the stopper portion against the retaining portion in order to prevent an unintended outflow of the chemical solution. The pressing portion can be compressively deformed so that the outer edge portion of the plug portion is separated from the retaining portion when the coating portion receives an external force in the direction opposite to the urging force.

In order to obtain a massage effect on the application area, the chemical supply tool further includes a protrusion protruding outward from the application portion.

When using the chemical feeder, the container is held so that the opening region faces downward, and the coating portion and the protruding portion are in contact with the coating region. When the stopper portion is pressed against the coating area in this state, the outer edge portion of the stopper portion is separated from the retaining portion, and the chemical solution in the container flows down to the opening region. The chemical solution flowing out of the opening region is then supplied to the coating portion.

International Publication No. WO2017 / 099235

Since the protruding portion protrudes outward from the coated portion, the pressure contact force of the protruding portion with respect to the coated region tends to be stronger than the pressure contact force of the coated portion with respect to the coated region. Since the chemical solution tends to flow to the region where the pressure contact force is weak, it concentrates on the region where the protrusion is not formed. As a result of the local concentration of the chemical solution, the amount of the chemical solution in the portion where the chemical solution is concentrated exceeds the amount that can be held at the boundary with the coating area, and dripping from the coating portion may occur.

An object of the present invention is to provide a chemical solution supply tool and a chemical solution supply device that suppress dripping from a coating portion.

The chemical solution feeder according to one aspect of the present invention is configured to be attachable to a container containing the chemical solution. The chemical solution supply tool includes a coating portion having a coating surface to which the chemical solution is supplied, and at least one protruding portion protruding from the coating surface. The coated surface is formed with a liquid storage recess recessed so as to store the supplied chemical solution.

According to the above configuration, since the protruding portion protrudes from the coated surface, the coated area can be pressed more strongly than the coated surface when the chemical solution is supplied, and a massage effect can be given to the coated area. Since the pressure contact force of the protruding portion with respect to the coating region is relatively strong, a large amount of the chemical solution is supplied to the coating surface around the protruding portion rather than the protruding portion. Since the liquid storage recess is formed on the coating surface, the chemical solution can be temporarily stored in the liquid storage recess. Since the amount of the chemical solution that can be held on the coated surface increases by the volume of the liquid storage recess, dripping of the chemical solution from the coated surface is suppressed.

With respect to the above configuration, the plug may include a plurality of protrusions protruding outward from the coated surface.

According to the above configuration, as the number of protrusions on the coated surface increases, the coated surface becomes relatively narrow. The chemical solution supplied to the coated surface tends to concentrate in a narrow area. Even if the chemical solution is concentrated in a narrow area, the chemical solution is stored in the liquid storage recess recessed in the coating surface, so that dripping is suppressed.

With respect to the above configuration, the coating portion may be attached to the container so that the chemical solution is supplied to the coating surface through the outer edge portion of the coating portion. The liquid storage recess may be formed closer to the outer edge portion than the center of the coating surface.

According to the above configuration, since the liquid storage recess is formed closer to the outer edge portion than the center of the coating surface, the chemical solution supplied to the coating surface can be captured through the outer edge portion of the coating portion. Therefore, dripping from the coated surface is suppressed.

With respect to the above configuration, the coating portion may be attached to the container so that the chemical solution is supplied to the coating surface through the outer edge portion of the coating portion. The liquid storage recess may be formed closer to the center of the coating surface than the outer edge portion.

According to the above configuration, most of the chemical solution supplied to the coated surface flows from the outer edge portion of the coated portion toward the center of the coated surface. Since the liquid storage recess is formed closer to the center of the coating surface than the outer edge portion, the chemical solution flowing toward the center of the coating surface can be captured.

According to the above configuration, the plurality of protrusions may include two protrusions protruding from the coating surface at positions separated from each other so as to be adjacent to each other in the circumferential direction. The liquid storage recess may be formed in the region between the two protrusions.

According to the above configuration, when the two protrusions are formed so as to be adjacent to each other at a separated position, the pressure contact force of the coating surface with respect to the coating region becomes weak in the region between these protrusions. The chemical solution that has flowed out to the coating area tends to concentrate in this area. Since the liquid storage recess is formed in this region, a part of the chemical solution concentrated in this region is stored in the liquid storage recess. Therefore, dripping from the coating area is suppressed.

The chemical solution supply device according to another aspect of the present invention includes the above-mentioned chemical solution supply tool and the container in which the chemical solution is contained and the opening is formed. The chemical feeder is attached to the opening of the container.

The chemical solution supply device and the chemical solution supply device of the present invention can suppress dripping from the coating area.

It is a schematic front view of a chemical solution supply device. It is a schematic front view of the stopper part and the pressing part of a chemical solution supply tool. It is the schematic perspective view of the stopper part and the pressing part of a chemical solution supply tool. It is the schematic perspective view of the stopper part and the pressing part of a chemical solution supply tool. It is a schematic plan view of the stopper part of a chemical solution supply tool. It is a schematic cross-sectional view of a part of the stopper part of a chemical solution supply tool. It is a schematic vertical sectional view of the substrate of a chemical solution feeder. It is a schematic perspective view of the base of the chemical solution feeder. It is a schematic plan view of the stopper part of a chemical solution supply tool. It is a schematic front view of the stopper part of another chemical solution supply tool. It is the schematic perspective view of the plug part housed in the substrate. It is the schematic perspective view of the plug part attached to the plug part. It is a schematic cross-sectional view of a part of the stopper part of a chemical solution supply tool. It is a schematic cross-sectional view of a part of the stopper part of a chemical solution supply tool.

A chemical supply device is a product in which a chemical solution supply device is attached to an opening of a container (for example, a spout for a chemical solution into a container). A schematic cross-sectional view of the chemical supply device is shown in FIG. The chemical solution feeder includes the plug portion 100 and the pressing portion 300 shown in FIGS. 2 to 4, and the tubular base 200 shown in FIGS. 7 and 8. The plug portion 100 and the pressing portion 300 are members housed in the substrate 200. FIG. 2 is a schematic front view of the plug portion 100 and the pressing portion 300. 3 and 4 are schematic perspective views of the plug portion 100 and the pressing portion 300. FIG. 5 is a schematic plan view of the plug portion 100. FIG. 6 is a schematic cross-sectional view of a part of the plug portion 100. FIG. 7 is a schematic vertical cross-sectional view of the base 200 attached to the mouthpiece 500 forming the opening of the container. FIG. 8 is a schematic perspective view of the substrate 200.

The substrate 200 is a member formed into an overall cylindrical shape using a resin (for example, high density polyethylene (HDPE), polypropylene (PP), polyoxymethylene)). Specifically, the substrate 200 includes an insertion tube portion 210 configured to be inserted into the mouth tube 500, and an exposed tube portion 220 exposed from the mouth tube 500.

The insertion cylinder portion 210 includes a tapered cylinder portion 211 that becomes thinner in the insertion direction (base end side) into the container, and an intermediate cylinder portion 212 located between the tapered cylinder portion 211 and the exposed cylinder portion 220. Includes. The inner peripheral surface of the tapered cylinder portion 211 is substantially parallel to the axis of the base 200, whereas the outer peripheral surface of the tapered cylinder portion 211 is inclined with respect to the axis of the base 200. The inclination of the outer peripheral surface of the tapered cylinder portion 211 is provided to facilitate the insertion of the base 200 into the mouth cylinder 500.

The outer peripheral surface of the intermediate cylinder portion 212 is substantially parallel to the axis of the substrate 200 and is in general contact with the inner peripheral surface of the mouth cylinder 500. The inner peripheral surface of the intermediate tubular portion 212 is substantially parallel to the axis of the substrate 200 except near the upper end portion, and is formed flush with the inner peripheral surface of the tapered tubular portion 211. The tip of the inner peripheral surface of the intermediate tubular portion 212 is inclined with respect to the axis of the substrate 200 so as to form a space that becomes narrower toward the proximal end side. The inclination of the tip portion of the inner peripheral surface of the intermediate cylinder portion 212 is provided to facilitate the insertion of the pressing portion 300 into the substrate 200.

The insertion cylinder portion 210 has a bottom ring portion 213 provided so as to project from the base end of the inner peripheral surface of the tapered cylinder portion 211 toward the axis of the base 200, and an opening direction of the mouth cylinder 500 from the bottom ring portion 213. It further includes a plurality of resistance protrusions 214 protruding toward the tip side). The bottom ring portion 213 is provided to support the plug portion 100 and the pressing portion 300 within the substrate 200. The plurality of resistance projections 214 are formed around the axis of the substrate 200 (that is, in the circumferential direction) at substantially equal intervals. Each of these resistance protrusions 214 is a triangular prism, and one of the corners of the triangular prism is formed so as to face the opening direction of the mouthpiece 500. The resistance projection 214 is provided to give resistance to the rotation of the plug portion 100 when the plug portion 100 rotates around the axis of the substrate 200.

The exposed cylinder portion 220 is formed on the tip side with respect to the insertion cylinder portion 210. The exposed cylinder portion 220 has an outer diameter larger than the outer diameter of the insertion cylinder portion 210, and has an annular shoulder surface 221 that extends outward in the radial direction from the tip portion of the insertion cylinder portion 210. The shoulder surface 221 abuts on the tip edge surface of the mouth cylinder 500, and prevents the substrate 200 from being pushed into the container from this position.

The exposed cylinder portion 220 forms an opening region 222 at the tip portion. The opening region 222 is formed to allow the outflow of the drug solution. The opening region 222 is wider than the opening region at the base end of the insertion tube portion 210 (that is, the region surrounded by the inner peripheral edge of the bottom ring portion 213).

In order to prevent the plug portion 100 from coming out of the base 200 through the opening region 222, a retaining portion 224 that bulges toward the axis of the base 200 is formed inside the exposed cylinder portion 220. The retaining portion 224 has a top having a curved shape in a vertical cross section. The ridgeline connecting the tops in the circumferential direction is the opening edge 223 surrounding the opening area 222. The retaining portion 224 forms a space that becomes wider from the opening region 222 toward the proximal end side.

The inner peripheral surface of the exposed cylinder portion 220 includes a tapered surface 225 forming a space that is widened in the direction opposite to the above-mentioned space surrounded by the retaining portion 224. The retaining portion 224 and the tapered surface 225 form a concave space in which the inner peripheral surface of the exposed cylinder portion 220 is recessed outward in the radial direction. The concave space is formed so as to accommodate the plug portion 100 and allow the plug portion 100 to be displaced in the axial direction of the substrate 200.

An annular regulation surface 226 facing the opening region 222 is formed in the exposed cylinder portion 220. The regulation surface 226 is provided to regulate the displacement of the plug portion 100 toward the proximal end side.

The stopper 100 is an overall disk-shaped member formed by using a resin harder than the substrate 200. For this embodiment, the hardness of the resin is assessed using the flexural modulus measured by the test method defined by ISO178 or JISK7171. When the substrate 200 is molded from high-density polyethylene, the stopper 100 may be molded from polyoxymethylene (POM). In this case, the flexural modulus of the plug 100 is 2,500, while the flexural modulus of the substrate 200 is 1,000. Alternatively, the stopper 100 may be formed from high density polyethylene (HDPE: High Density Polyethylene), low density polyethylene (LDPE: Low Density Polyethylene), or polypropylene (PP: Polypolyline).

The plug portion 100 has a substantially disk-shaped coating portion 103 having an exposed portion 110 exposed from the opening region 222 on the tip end side and including a base end surface 120 facing the side opposite to the exposed portion 110. , Includes an annular outer edge 130 formed to surround the coating 103. The coating portion 103 is a portion used for coating the chemical solution. The outer edge portion 130 is a portion that prevents the plug portion 100 from coming off from the substrate 200 through the opening region 222.

The exposed portion 110 includes a substantially circular coated surface 111 having a diameter substantially equal to the diameter of the opening region 222, and three projecting portions 112 protruding from the coated surface 111. The coating surface 111 is used to apply the chemical solution flowing out of the opening region 222 to the human body. The protrusion 112 is used to massage the human body portion in contact with the coating surface 111.

The coating surface 111 is a convex surface (a circular convex surface in a plan view) curved so as to smoothly rise from the opening region 222. The apex of the convex surface is located substantially at the center of the coating surface 111.

On the coating surface 111, three liquid storage recesses 113 (circular recesses) used for storing the chemical solution that has flowed to the coating surface 111 through the opening region 222 are formed at intervals in the circumferential direction. These liquid storage recesses 113 are formed at substantially equal intervals. The recessing direction of the liquid storage recess 113 is substantially parallel to the axis of the substrate 200. That is, the inner peripheral surface of the plug portion 100 surrounding the liquid storage recess 113 is bent at a substantially right angle to the coating surface 111 (see FIG. 6). The center of the liquid storage recess 113 is located closer to the outer edge portion 130 than the center of the coating surface 111.

As shown in FIG. 6, the liquid storage recess 113 has a portion having a large diameter and a portion having a small diameter. The portion having a large diameter forms a substantially circular open end on the coated surface 111. The diameter of this open end is a value in the range of 2.5 mm to 5 mm. The depth of the liquid storage recess 113 is set to a value of 1 mm or more so as to allow the storage of a sufficient amount of the chemical solution to prevent dripping.

The three protrusions 112 are formed at intervals in the circumferential direction, and are arranged alternately with the three liquid storage recesses 113 in the circumferential direction. Each of these projecting portions 112 is a truncated cone-shaped base portion 114 protruding from the coating surface 111 along an axis inclined outward with respect to the axis of the substrate 200 from the base end side to the tip end side, and a base portion. It includes a spherical portion 115 provided at the tip of 114. The base end edge of the base portion 114 is substantially in contact with the outer edge portion 130. The base portion 114 is tapered toward the tip. The spherical surface portion 115 forms a substantially hemispherical surface on the tip of the base portion 114.

Regarding the positional relationship between the protrusion 112 and the liquid storage recess 113, each of the three liquid storage recesses 113 is formed between the protrusions 112 adjacent to each other in the circumferential direction. Specifically, the liquid storage recess 113 is formed in a region on the outer edge 130 side of the region where the base 114 of the adjacent protrusions 112 is closest to each other. The part where the base portion 114 is closest to the base portion 114 is indicated by points P1 and P2 in FIG. The points P1 and P2 may be defined as the intersection of the plane including the axes of the adjacent base portions 114 and the base end of the base portion 114 (that is, the boundary line between the coated surface 111 and the base portion 114). .. The liquid storage recess 113 is formed in a region outside the line segment connecting the points P1 and P2. This outer region gradually narrows from the outer edge 130 toward the center of the coating surface 111.

The base end surface 120 has an annular and flat band region formed along the outer peripheral edge of the base end surface 120. The diameter of the proximal surface 120 is less than the diameter of the opening region 222 and is substantially equal to the outer diameter of the regulatory surface 226. The flat band region of the base end surface 120 faces the regulation surface 226.

The annular outer edge 130 of the plug 100 projects outward from the coating surface 111 in the radial direction. Specifically, the outer edge portion 130 has a contact surface 132 inclined from the ridge line 133 surrounding a circular region having a diameter larger than the diameter of the coating portion 103 toward the outer peripheral edge of the coating surface 111, and a ridge line 133 to the base end surface 120. Includes an inclined surface 131 inclined toward. The outer edge portion 130 has a shape that bulges toward the ridge line 133.

The bulging shape of the outer edge portion 130 is substantially complementary to the concave space formed by the retaining portion 224 and the tapered surface 225 of the substrate 200. The contact surface 132 faces the retaining portion 224. The inclined surface 131 faces the tapered surface 225. The shape of the contact surface 132 is designed so that the contact surface 132 comes into surface contact with the retaining portion 224. The inclination angle of the inclined surface 131 is set so as not to cause abrupt deformation of the base 200 when the plug portion 100 is fitted into the base 200.

The width of the outer edge portion 130 (the size of the base 200 in the axial direction) is larger than the thickness of the concave space formed by the retaining portion 224 and the tapered surface 225 (that is, the size of the concave space in the axial direction of the base 200). small. Therefore, the plug portion 100 can move in the concave space in the axial direction of the substrate 200.

The pressing portion 300 is configured to elastically support the plug portion 100. The pressing portion 300 is integrally molded with the plug portion 100 using the same resin as the plug portion 100, and is formed separately from the substrate 200. As described above, the resin of the plug portion 100 is relatively hard, so that the pressing portion 300 has a large elastic modulus.

The pressing portion 300 includes a support ring portion 310 mounted on the bottom ring portion 213, and three elastic leg portions 320 extending from the support ring portion 310 to the base end surface 120 of the plug portion 100. The inner diameter and outer diameter of the support ring portion 310 substantially match the inner diameter and outer diameter of the bottom ring portion 213. Each of the three elastic leg portions 320 is curved in an arc shape so as to overlap the support ring portion 310 in a plan view, and extends toward the plug portion 100, and the base 200 from the tip of the spiral leg portion 321. Includes a tip leg 322 extending substantially parallel to the axis of. The base ends of the three spiral leg portions 321 are connected to the support ring portions 310 at substantially equal intervals in the circumferential direction. The three tip leg portions 322 are connected to the proximal end surface 120 at substantially equal intervals in the circumferential direction. The connection portion between the tip end surface 322 and the base end surface 120 is inside the outer peripheral edge of the base end surface 120 so that the tip end leg portion 322 does not interfere with the portion of the substrate 200 forming the annular regulation surface 226. It is set at a separated position. The height of the elastic leg portion 320 is set so that when the plug portion 100 and the pressing portion 300 are housed in the base 200, the elastic leg portion 320 is compressed in the axial direction of the base 200.

The chemical solution feeder further includes a resistance portion 400 that cooperates with the resistance projection 214 of the base 200 to give resistance to the rotation of the stopper portion 100 around the axis. The resistance portion 400 is integrally formed with the support ring portion 310. The resistance portion 400 includes three protrusions 410 protruding from the base end surface of the support ring portion 310 facing the bottom ring portion 213. These protrusions 410 are formed at substantially equal intervals. Each of these protrusions 410 has a substantially triangular pyramid shape. The apex of the triangular pyramid of the protrusion 410 contacts the bottom ring portion 213. The protrusions 410 are arranged between adjacent resistance protrusions 214.

The chemical solution feeder opens and closes the opening region 222 by utilizing the elastic deformation of the pressing portion 300. Since the elastic leg portion 320 of the pressing portion 300 housed in the substrate 200 is in a compressed state, the pressing portion 300 exerts an urging force on the plug portion 100 in the direction of pushing the plug portion 100 out of the opening region 222. .. As a result, the contact surface 132 of the outer edge portion 130 of the plug portion 100 comes into surface contact with the retaining portion 224 of the substrate 200. The surface contact region of the contact surface 132 and the retaining portion 224 functions as a seal region for preventing the outflow of the chemical solution from the opening region 222.

When the chemical supply tool is used for coating the chemical solution, the container to which the chemical solution supply tool is attached is held so that the coating surface 111 faces downward. When the coated surface 111 is pressed against the human body portion (that is, the coated region) and the external force pressing the coated surface 111 exceeds the elastic force of the pressing portion 300, the plug portion 100 is subjected to the axial direction of the substrate 200. Displace inward (ie, upward). As a result, the contact surface 132 is separated from the retaining portion 224, and the opening region 222 is connected to the internal space of the container. The chemical solution in the container flows out from the opening region 222 under the action of gravity.

When the plug portion 100 is further pushed into the substrate 200, the flat band region of the base end surface 120 of the plug portion 100 abuts on the regulation surface 226, and the displacement of the plug portion 100 is regulated by the regulation surface 226. Since the band region of the base end surface 120 and the regulation surface 226 are both flat, the flat band region of the base end surface 120 and the regulation surface 226 come into surface contact with each other. The surface contact region of the base end surface 120 and the regulation surface 226 functions as a seal region for preventing the outflow of the chemical solution from the opening region 222.

The amount of the chemical solution flowing out from the opening region 222 reaches a peak value when the distance between the contact surface 132 and the retaining portion 224 becomes substantially equal to the distance between the base end surface 120 and the regulation surface 226. From this state, the outflow amount decreases not only when the external force for pressing the coated surface 111 becomes weak, but also when the external force becomes strong. Therefore, an excessive outflow of the chemical solution when the pressing force on the coated surface 111 is increased is suppressed.

The chemical solution flowing out of the opening region 222 is supplied to the coating surface 111. A part of the chemical solution at the boundary between the coating surface 111 and the coating region is stored in the liquid storage recess 113. Since the amount of the chemical solution that can be retained at the boundary between the coating surface 111 and the coating area increases by the volume of the liquid storage recess 113, the chemical solution drips from the boundary between the coating surface 111 and the human body portion. It is suppressed. While the coating surface 111 is rubbed against the human body portion, even if the external force pressing the coating surface 111 weakens or strengthens and the plug portion 100 closes the opening region 222, the chemical solution is stored in the liquid storage recess 113. Therefore, the drug solution can be continuously supplied to the human body part.

The chemical solution flowing out from the opening region 222 flows along the coating surface 111 toward the center of the coating surface 111. At this time, since the protrusion 112 is pressed more strongly against the coating region than the coating surface 111, the chemical solution travels along the region of the coating surface 111 between the adjacent protrusions 112, avoiding the protrusion 112. It flows. That is, the chemical solution tends to concentrate in the region between the adjacent protrusions 112. Even if the chemical solution is concentrated in this region, since the liquid storage recess 113 is formed between the adjacent protrusions 112, the coating surface 111 can hold a large amount of the chemical solution in this region. Therefore, dripping from the coated surface 111 is suppressed.

The region between the adjacent protrusions 112 narrows from the outer edge 130 toward the center of the coated surface 111. In addition, since the coating surface 111 is a convex surface having an apex at the center of the coating surface 111, the pressure contact force of the coating surface 111 with respect to the coating region is closer to the outer edge portion 130 than to the region near the center of the coating surface 111. Become stronger in the area. Therefore, most of the chemical solution flowing out from the opening region 222 does not reach the center of the coating surface 111 and stays near the outer edge portion 130. Since the liquid storage recess 113 is formed in a region closer to the outer edge portion 130 than the center (that is, the apex) of the coating surface 111, even if most of the chemical solution stays near the outer edge portion 130, the chemical solution can be stored. A large amount can be captured and dripping from the coated surface 111 can be suppressed.

Since the diameter at the open end of the liquid storage recess 113 is set to 2.5 mm or more, the amount of the chemical solution that passes through the liquid storage recess 113 without flowing into the liquid storage recess 113 is reduced. The holding power of the chemical solution in the liquid storage recess 113 is affected by the amount of the chemical solution in the liquid storage recess 113 and the contact area between the chemical solution in the liquid storage recess 113 and the surface of the stopper 100. That is, if the contact area is large with respect to the amount of the chemical solution in the liquid storage recess 113, a large holding force can be obtained. Since the diameter at the open end of the liquid storage recess 113 is set to 5 mm or less, a relatively large contact area (and thus a large holding force) with respect to the amount of the chemical solution in the liquid storage recess 113 can be obtained. In addition, since the liquid storage recess 113 has a two-stage cylindrical shape, the contact area between the chemical solution and the surface of the stopper 100 in the liquid storage recess 113 is also large in this respect.

The protrusion 112 massages the human body portion while the coated surface 111 is rubbed against the human body portion. When the force with which the protruding portion 112 presses the human body portion is weakened, the plug portion 100 comes into contact with the retaining portion 224, and the outflow of the chemical solution from the opening region 222 is stopped. On the contrary, even if the pressing force on the human body part is strengthened, the plug portion 100 comes into contact with the regulation surface 226 and the outflow of the chemical solution is stopped. Even in these cases, the liquid storage recess 113 enables continuous supply of the chemical solution.

During the massage of the human body, a force that tends to rotate the plug 100 around the axis of the substrate 200 may act. When the plug portion 100 rotates in response to this force, the protrusion 410 of the resistance portion 400 orbits around the axis of the substrate 200 while contacting the support ring portion 310. Since the contact portion of the protrusion 410 is the apex of the triangular pyramid, the contact area between the protrusion 410 and the support ring portion 310 is small. Therefore, while the protrusion 410 is moving in the moving section between the adjacent resistance protrusions 214, the chemical supply tool gives almost no resistance to the rotation of the plug portion 100. On the other hand, when the protrusion 410 comes into contact with the adjacent resistance protrusion 214, the chemical supply tool creates a strong resistance to the rotation of the plug portion 100.

Regarding the above-described embodiment, the coating surface 111 is formed with three liquid storage recesses 113. How many liquid storage recesses 113 are formed may be determined in consideration of the molding process of the plug portion 100. For example, the liquid storage recess 113 may be formed by an ejector pin for removing the plug portion 100 from the mold. If three or more liquid storage recesses 113 are formed by ejector pins at substantially equal intervals in the circumferential direction of the coating surface 111, the plug portion 100 can be removed from the mold in a well-balanced manner.

When the liquid storage recess 113 is formed by using the ejector pin, the liquid storage recess 113 may be formed at the center of the coating surface 111 (see FIG. 9). Even in this case, the plug portion 100 can be removed from the mold in a well-balanced manner.

When the liquid storage recess 113 is formed in the center of the coating surface 111, the distance between the liquid storage recess 113 and the outer edge portion 130 is substantially equal in any direction in the plan view. Therefore, the liquid storage recess 113 can capture the chemical solution regardless of the direction in which the chemical solution flows out. For example, when the plug portion 100 is pushed into the substrate 200 in an inclined posture, a part of the outer edge portion 130 is in contact with the retaining portion 224, while the remaining portion is separated from the retaining portion 224. become. The chemical solution flows out from the portion where the outer edge portion 130 is separated from the retaining portion 224, and flows toward the center of the coating surface 111. Even if there is such a flow of the chemical solution, the liquid storage recess 113 can capture the chemical solution and suppress dripping.

For the above embodiment, the plug 100 has three protrusions 112. The number of protrusions 112 formed may be determined in consideration of what kind of stimulus is given to the human body. Therefore, a large number and small protrusions 112 may be formed on the coated surface 111, or a large protrusion 112 of less than 3 may be formed on the coated surface 111.

The shape, size and / or arrangement of the protrusion 112 may be determined to concentrate the drug solution on a specific site on the coating surface 111. In this case, the liquid storage recess 113 is formed in the region where the chemical solution is concentrated.

With respect to the above-described embodiment, the coating surface 111 forms a convex surface protruding from the opening region 222. Alternatively, the coated surface 111 may form a flat surface. Even in this case, since the protruding portion 112 protrudes from the coating surface 111, the user can apply an external force to the plug portion 100 through the protruding portion 112 to push the plug portion 100 into the substrate 200.

With respect to the above-described embodiment, the protrusion 410 and the resistance protrusion 214 of the resistance portion 400 are provided to prevent the rotation of the plug portion 100. However, the shapes of the protrusions 410 and the resistance protrusions 214 and the elastic force of the pressing portion 300 may be designed so that the resistance protrusions 214 ride on the protrusions 410 when the plug portion 100 is rotated with a strong force. When the resistance projection 214 rides on the projection 410, the elastic leg portion 320 of the pressing portion 300 is compressed and deformed in the axial direction of the substrate 200. As a result, the restoring force of the elastic leg 320 is increased. Since the increased restoring force is added to the force applied to the human body part by the user, the pressing force on the human body part is further increased, and the massage effect is enhanced.

With respect to the above-described embodiment, the pressing portion 300 is integrally molded with the plug portion 100. Alternatively, the pressing portion 300 may be formed separately from these. A chemical solution feeder having a pressing portion 300 formed separately from the plug portion 100 will be described with reference to FIGS. 10 to 12. FIG. 10 is a schematic front view of the pressing portion 300 formed separately from the plug portion 100. FIG. 11 is a schematic perspective view of the pressing portion 300 housed in the substrate 200. FIG. 12 is a schematic perspective view of the plug portion 100 attached to the pressing portion 300 of FIG.

The pressing portion 300 of FIG. 10 differs from the pressing portion 300 shown in FIG. 2 only in that it has a ring member 330 connected to the tip of the tip leg portion 322 of the elastic leg portion 320. There is. The outer diameter of the ring member 330 is smaller than the outer diameter of the support ring portion 310. As shown in FIG. 11, a cross-shaped through hole 331 is formed in the center of the ring member 330. The through hole 331 is formed in the axial direction of the substrate 200.

The pressing portion 300 is housed in the substrate 200 as shown in FIG. When no external force is applied to the elastic leg 320, the surface of the ring member 330 opposite to the surface to which the elastic leg 320 is connected is surrounded by the retaining portion 224 and the tapered surface 225 (see FIG. 1). It may be located in the internal space of the exposed cylinder portion 220. Alternatively, when no external force is applied to the elastic leg portion 320, the ring member 330 may protrude toward the tip end side from the internal space of the exposed cylinder portion 220.

The plug portion 100 of FIG. 12 differs from the plug portion 100 of FIG. 1 only in that it has a shaft portion 122 protruding from the center of the proximal end surface 120 toward the proximal end side of the substrate 200. The shaft portion 122 has a cross-shaped cross section complementary to the cross-shaped through hole 331 of the ring member 330.

The shaft portion 122 of the plug portion 100 is inserted into the through hole 331 of the ring member 330 after the pressing portion 300 is housed in the substrate 200. After that, the plug portion 100 is pushed toward the proximal end side and pushed into the substrate 200.

With respect to the chemical solution feeder described with reference to FIGS. 10 to 12, since the pressing portion 300 is a separate body from the stopper portion 100, the resin material between the pressing portion 300 and the stopper portion 100 can be easily obtained. Can be different. That is, the resin material used for molding the pressing portion 300 can be selected regardless of the resin material of the plug portion 100 so that the elastic force required for the pressing portion 300 can be obtained.

The rotation of the plug portion 100 is prevented by the engagement of the shaft portion 122 with the cross-shaped through hole 331. Therefore, the chemical solution feeder can be used without rotating the stopper 100.

With respect to the above-described embodiment, the liquid storage recess 113 is substantially circular in a plan view. Alternatively, the liquid storage recess 113 may have other shapes (eg, polygons) in plan view. When the liquid storage recess 113 is formed by the ejector pin, the liquid storage recess 113 has the cross-sectional shape of the ejector pin, so that the plan view shape of the liquid storage recess 113 is set to match the shape of the ejector pin. May be done.

In the above-described embodiment, the liquid storage recess 113 is surrounded by the inner peripheral surface of the plug portion 100 bent at a substantially right angle from the coating surface 111. Alternatively, as shown in FIGS. 13 and 14, the bending angle of the inner peripheral surface with respect to the coated surface 111 may be set to an acute angle or an obtuse angle. When the bending angle is set to an acute angle (see FIG. 13), the liquid storage recess 113 becomes narrower toward the open end, so that the chemical solution in the liquid storage recess 113 is less likely to flow out. That is, the liquid storage recess 113 has a high holding force with respect to the chemical solution. When the bending angle is set to an obtuse angle (see FIG. 14), the liquid storage recess 113 becomes wider toward the open end, so that the chemical solution easily flows into the liquid storage recess 113. In addition, the irritation given to the user's skin by the edge portion between the coated surface 111 and the inner peripheral surface is reduced.

The drug solution supply device and the drug solution supply device of the above-described embodiment can be suitably used together with a container containing the drug solution.

103 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Coating part 111 ・ ・ ・ ・ ・ ・ ・ ・ ・ Coating surface 112 ・ ・ ・ ・ ・··································································・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Outer edge

Claims (6)

A chemical supply tool that can be attached to a container containing a chemical solution.
A coating portion having a coating surface to which the chemical solution is supplied, and
With at least one protrusion protruding from the coated surface,
A chemical liquid supply tool in which a liquid storage recess recessed so as to store the supplied chemical liquid is formed on the coating surface. The chemical solution supply tool according to claim 1, wherein the plug portion includes a plurality of protruding portions protruding outward from the coating surface. The coating is attached to the container so that the chemical is supplied to the coating surface through the outer edge of the coating.
The chemical supply tool according to claim 1 or 2, wherein the liquid storage recess is formed closer to the outer edge portion than the center of the coating surface. The coating is attached to the container so that the chemical is supplied to the coating surface through the outer edge of the coating.
The chemical liquid supply tool according to claim 1 or 2, wherein the liquid storage recess is formed closer to the center of the coating surface than the outer edge portion. The plurality of protrusions include two protrusions protruding from the coating surface at positions separated from each other so as to be adjacent to each other in the circumferential direction.
The chemical solution supply tool according to claim 2, wherein the liquid storage recess is formed in a region between the two protrusions. The drug solution supply device according to any one of claims 1 to 5.
A container containing the chemical solution and having the opening formed therein.
The chemical solution supply device is a chemical solution supply device attached to the opening of the container.

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