JP7084804B2 - Coating type container - Google Patents

Description

The present invention relates to a coating type container in which the contents are weighed and applied.

Conventionally, a coating type container for applying a content such as a chemical solution to a portion to be coated such as the scalp of a human body has been known. As a coating type container of this type, Patent Document 1 below describes a bottomed cylindrical container body in which the contents are stored, and an inner plug that is attached to the mouth of the container body and has a through hole that communicates with the inside of the container body. A measuring cylinder member that forms a measuring chamber that communicates with the inside of the container body through a through hole between the inner plug and a valve member that has a discharge hole that protrudes outward from the measuring cylinder member and communicates with the measuring chamber. , Which are disclosed.

The valve member described above has a measuring position that blocks communication between the outside and the measuring chamber through the discharge hole of the valve member and communicates between the measuring chamber and the inside of the container body, and the inner plug side of the measuring position in the container axial direction. In addition to being located in, it is movably arranged in the direction of the container axis between a coating position that blocks communication between the measuring chamber and the inside of the container body and communicates between the measuring chamber and the outside.

In the above-mentioned coating type container, in order to apply the contents to the part to be coated, first, the coating type container is placed in an inverted position with the valve member moved to the measuring position, and the contents in the container body are weighed through the through holes. Let it flow into the room. As a result, a predetermined amount of contents are weighed in the measuring chamber. In this state, when the tip of the valve member is pressed against the portion to be coated, the valve member moves to the coating position, and the contents in the measuring chamber are discharged through the discharge hole of the valve member. As a result, the content is applied to the portion to be coated.

In the coating type container of Patent Document 1, at the coating position, the contents in the measuring chamber are discharged through the discharge hole of the valve member by the action of gravity, impact force at the time of coating, or the like.

In Patent Document 2, a measuring chamber for accommodating a valve is partitioned, a movable valve that can be elastically deformed is provided, and a nozzle that covers the movable valve from the outside is provided. On the other hand, a coating type container has been proposed which adopts a structure in which the contents in the measuring chamber are pressurized and discharged by elastically displacing the movable valve toward the inner plug side.

Japanese Patent No. 3759428 Japanese Unexamined Patent Publication No. 2017-21281

However, in the above-mentioned coating type container described in Patent Document 2, the contents adhering to the tip of the discharge cylinder may enter and solidify between the discharge cylinder and the nozzle after use, resulting in malfunction of the movable valve. was there.

Therefore, an object of the present invention is to provide a coating type container capable of preventing malfunction of the movable valve due to solidification of the contents while enabling discharge by pressurizing the contents.

The present invention relates to a container body in which the contents are housed, an inner plug attached to the mouth of the container body and having an inflow hole for communicating with the inside of the container body, and the inner plug. An elastically deformable pressure wall that partitions a measuring chamber that communicates with the inside of the container body through an inflow hole, and a movable valve that extends upward from the pressure wall and has a discharge cylinder having a flange on the outer peripheral surface. A valve provided in the measuring chamber and having a tip protruding outward from the discharge cylinder, a nozzle covering the movable valve from the outside in the radial direction, and a detachably attached to the mouth portion of the container body. The inner plug, the valve, the movable valve, and the cap covering the nozzle are provided, and the valve is raised by removing the cap to cut off the communication between the discharge cylinder and the measuring chamber. It can be moved to a position and a coating position where it descends by being pressed against a portion to be coated and communicates the discharge cylinder and the measuring chamber, and at the coating position, the movable portion protruding upward from the nozzle. By pressing the tip of the discharge cylinder of the valve against the part to be coated, the pressure wall is elastically deformed, and this elastic deformation reduces the internal volume of the measuring chamber and pressurizes the contents to discharge the coating. In a mold container, the nozzle has an annular flange portion that projects radially inward at the upper end thereof, and the movable valve has a seal step portion on the outer peripheral surface of the discharge cylinder at a position above the flange portion. However, in the initial state, the annular flange portion and the seal step portion are in contact with each other in the vertical direction.

In the coating type container of the present invention, the cap includes the mouth portion of the container body, the inner plug, the valve, the movable valve, and the peripheral wall portion surrounding the nozzle from the outside in the radial direction. It preferably has a top wall portion that closes the upper end opening of the peripheral wall portion, and the top wall portion has a contact ring that abuts on the upper end surface of the discharge cylinder of the movable valve.

According to the coating type container of the present invention, since the movable valve is formed so as to be elastically deformable in the direction of the container axis, the movable valve is elastically deformed by using the pressing force of the discharge cylinder to pressurize the contents in the measuring chamber. Can be discharged.

Further, according to the coating type container of the present invention, the nozzle has an annular flange portion protruding inward in the radial direction at the upper end thereof, and the movable valve has a seal step portion on the outer peripheral surface of the discharge cylinder, and in the initial state. Since the annular flange portion and the seal step portion are in contact with each other in the vertical direction, the contents adhering to the tip of the discharge cylinder after use etc. enter and solidify between the discharge cylinder and the nozzle, and the movable valve operates. It is possible to prevent defects that become defects.

It is sectional drawing of the coating type container of one Embodiment of this invention. The inner plug in the coating type container of FIG. 1 is shown as a single unit, (a) is a plan view, (b) is a partial cross-sectional side view, and (c) is a bottom view. The movable valve in the coating type container of FIG. 1 is shown as a single unit, (a) is a plan view, and (b) is a partial cross-sectional side view. The valve in the coating type container of FIG. 1 is shown as a single unit, (a) is a plan view, and (b) is a partial cross-sectional side view. The nozzle in the coating type container of FIG. 1 is shown as a single unit, (a) is a plan view, (b) is a partial cross-sectional side view, and (c) is a bottom view. FIG. 3 is a cross-sectional view showing how the valve is raised to the weighing position by removing the cap from the state shown in FIG. It is sectional drawing which shows the state which the coating type container which removed the cap was put into an inverted posture. FIG. 5 is a cross-sectional view showing a state in which the valve is pressed against the portion to be coated from the state of FIG. 7 to move it to the coating position. FIG. 3 is a cross-sectional view showing how the movable valve is restored by releasing the pressing against the portion to be coated from the state shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the coating type container 10 includes a container main body 20, an inner plug 30, a movable valve 40, a valve 50, a nozzle 60, and a cap 70. The central axes of the container body 20, the inner plug 30, the movable valve 40, the valve 50, the nozzle 60, and the cap 70 are located on a common axis. Hereinafter, this common shaft is referred to as a container shaft O, the container body 20 side along the container shaft O is referred to as a lower side, and the cap 70 side is referred to as an upper side. In a plan view from the container axis O direction, the direction orthogonal to the container axis O is called the radial direction, and the direction orbiting around the container axis O is called the circumferential direction.

The coating container 10 generally has the following configuration. The container body 20 houses the contents. The inner plug 30 is attached to the mouth portion 21 of the container body 20. The inner plug 30 is formed with an inflow hole 33c that communicates with the inside of the container body 20. The movable valve 40 extends upward from the elastically deformable pressure wall 42 that partitions the measuring chamber R communicating with the inner plug 30 through the inflow hole 33c and into the container body 20, and the pressure wall 42. It has a discharge cylinder 43 to be used. The valve 50 is provided in the measuring chamber R, and the tip portion thereof can protrude outward from the discharge cylinder 43. The nozzle 60 covers the movable valve 40 from the outside in the radial direction. The cap 70 is detachably attached to the mouth portion 21 of the container body 20 and covers the inner plug 30, the valve 50, the movable valve 40, and the nozzle 60. The valve 50 is pulled up by removing the cap 70, and the valve 50 is lowered (toward the inner plug 30 side) by the weighing position P1 (see FIGS. 6 and 7) in which the valve 50 is raised and by pressing against the coated portion S. It can be moved to the coating position P2 (see FIG. 8) that has been moved). In the coating type container 10, the pressure wall 42 is elastically deformed by pressing the tip of the discharge cylinder 43 of the movable valve 40 protruding upward from the nozzle 60 against the coated portion S at the coating position P2, and this elastic deformation causes the pressure wall 42 to be elastically deformed. The contents are discharged by reducing the internal volume of the measuring chamber R and pressurizing the contents. Further, in the following description, the "initial state" means that the valve 50 descends to the inner plug 30 side to block the communication between the measuring chamber R and the inflow hole 33c, and the discharge cylinder 43 of the movable valve 40 is downward ( Refers to the state (see FIG. 1) that is not pushed into the inner plug 30 side).

Hereinafter, details of each member will be described. The container body 20 is manufactured using a synthetic resin as a material. The container body 20 has a bottomed tubular shape, and a tubular mouth portion 21 is erected on the upper portion. The container body 20 contains liquid contents such as a hair-growth agent and a chemical solution to be applied to the coated portion S (see FIG. 8) such as the scalp of the human body. The mouth portion 21 of the container body 20 has a smaller diameter than the portion other than the mouth portion 21 (body portion, bottom portion, shoulder portion (not shown)). A male screw 21a into which the cap 70 is screwed is formed on the outer peripheral surface of the mouth portion 21. The male screw 21a may be a multi-threaded screw, and is composed of a double-threaded screw in the illustrated example. A protrusion (undercut) 21b projecting outward in the radial direction extends along the circumferential direction on the outer peripheral surface of the upper portion of the mouth portion 21. The protrusion 21b is locked to the lower end of the nozzle 60 to hold the nozzle 60.

As shown in FIG. 1, the inner plug 30 is attached to the mouth portion 21 of the container body 20. The inner plug 30 includes a support portion 31, a seal ring portion 32, a partition wall 33, and a mandrel 34. The inner plug 30 is manufactured from a synthetic resin. The material of the inner plug 30 is not particularly limited as long as it is a material having a higher rigidity than the movable valve 40, and for example, polypropylene or polyethylene can be used.

FIG. 2 shows the inner plug 30 as a single substance. The support portion 31 forms an annular substantially U-shaped cross-sectional groove 31a in which the lower surface abuts on the upper end surface of the mouth portion 21 of the container body 20 and the lower end portion of the movable valve 40 is liquid-tightly supported on the upper surface side. On the outer peripheral surface of the support portion 31, a protrusion (undercut) 31b protruding outward in the radial direction is extended along the circumferential direction.

The seal ring portion 32 hangs down from the support portion 31 along the container shaft O, and is liquid-tightly fitted into the mouth portion 21 of the container body 20.

The partition wall 33 includes a cylindrical side wall portion 33a extending from the radial inner edge of the support portion 31 into the mouth portion 21 and having a reduced diameter at the lower portion, and a bottom wall portion 33b that closes the lower end of the side wall portion 33a. , Have. The bottom wall portion 33b is formed with an inflow hole 33c that communicates with the inside of the container body 20. The inflow hole 33c penetrates the partition wall 33. In the illustrated example, four fan-shaped inflow holes 33c are formed. The number of inflow holes 33c may be at least one, and the shape thereof is not limited to a fan shape and may be circular or the like.

The mandrel 34 is erected along the container shaft O at the center of the bottom wall portion 33b of the partition wall 33. The mandrel 34 has a function of guiding the vertical movement of the valve 50 along the container axis O. A pedestal 35 that receives the lower end surface of the valve 50 is formed at the base of the mandrel 34. A slit 35a for allowing air to escape between the mandrel 34 and the inner cylinder 51b of the valve 50, which will be described later, is formed on the outer surface of the pedestal 35 under the inverted posture of the coating type container 10. The circumferential width of one slit 35a is smaller than the circumferential width between the slits 35a. The slit 35a is open on the upper surface of the pedestal 35 (the surface that abuts on the lower end surface of the valve 50). In the illustrated example, four slits 35a are formed, but at least one slit 35a is sufficient. The slit 35a is preferably formed at a position corresponding to the inflow hole 33c in the direction of the container axis O. As a result, the air between the mandrel 34 and the inner cylinder 51b of the valve 50 can be efficiently released into the container body 20 through the slit 35a and the inflow hole 33c under the inverted posture of the coating type container 10.

Further, when the mandrel 34 engages with the inner cylinder 51b described later of the valve 50 at the above-mentioned coating position P2 on the upper adjacent portion of the pedestal 35, and the pressure wall 42 of the movable valve 40 recovers from its elastic deformation state. A locking projection 34a is formed to prevent the valve 50 from being lifted due to the negative pressure of the measuring chamber R. In the illustrated example, a locking projection 34a formed of a circumferential undercut is formed on the outer peripheral surface of the mandrel 34.

Returning to FIG. 1, the movable valve 40 partitions the measuring chamber R communicating with the inner plug 30 into the container body 20 through the inflow hole 33c. The movable valve 40 is formed so as to be elastically deformable toward the lower side (the inner plug 30 side along the container shaft O). The movable valve 40 is made of an easily elastically deformable material such as silicone rubber.

FIG. 3 shows the movable valve 40 as a single unit. The movable valve 40 is formed in the shape of a multi-stage cylinder arranged coaxially with the container shaft O. The movable valve 40 includes an adhered portion 41, a pressure wall 42, and a discharge cylinder 43. The adherend 41, the pressure wall 42, and the discharge cylinder 43 are integrally formed of the same material.

The adhered portion 41 includes a lower cylinder portion 41a, a flange portion 41b, and an upper cylinder portion 41c. The lower cylinder portion 41a is inserted into the annular substantially U-shaped cross-sectional groove 31a of the support portion 31 of the inner plug 30. An annular seal portion 44 that is in close contact with the inner side wall of the annular substantially U-shaped cross-sectional groove 31a is formed on the inner peripheral surface of the lower cylinder portion 41a. As a result, the inner plug 30 and the movable valve 40 are hermetically sealed. The flange portion 41b is placed on the upper surface of the support portion 31 of the inner plug 30. The upper cylinder portion 41c is formed to be thicker than the pressure wall 42, and is in pressure contact with the inner surface of the nozzle 60 on the outer peripheral surface. As a result, undesired deformation of the upper cylinder portion 41c when the discharge cylinder 43 is pushed toward the inner plug 30 is suppressed.

The pressure wall 42 can be elastically deformed in the container axis O direction. The pressure wall 42 extends upward from the upper cylinder portion 41c of the adherend portion 41. The pressure wall 42 has a dome shape whose diameter is reduced toward the top. Further, the pressure wall 42 is formed to be thinner than the adherend portion 41 and the discharge cylinder 43. As a result, the pressure wall 42 bends at two points in the radial direction when the discharge cylinder 43 is pushed toward the inner plug 30, that is, the pressure wall 42 can be reconstructably bent into an S-shaped cross section (see FIG. 8).

The discharge cylinder 43 is erected on the pressure wall 42, and a discharge hole 43a leading to the measuring chamber R is formed inside. The discharge cylinder 43 projects upward from the inner peripheral edge portion of the pressure wall 42. A flange portion 45 is provided at the lower end portion of the discharge cylinder 43 so as to project outward in the radial direction. In the present embodiment, the flange portion 45 is connected to the inner peripheral edge portion of the pressure wall 42. Further, a seal step portion 46 is formed on the outer peripheral surface of the discharge cylinder 43. The seal step portion 46 is composed of an upward annular surface that appears by forming the lower half portion of the discharge cylinder 43 to be thicker than the upper half portion.

Further, the discharge cylinder 43 is formed with a plurality of ridges 47 that project inward in the radial direction and maintain a discharge flow path of the contents between the discharge cylinder 43 and the valve 50. By adjusting the protruding height of the ridge 47, that is, the gap between the inner peripheral surface of the discharge cylinder 43 and the outer peripheral surface of the coating portion 51a described later of the valve 50, one discharge due to elastic deformation of the pressure wall 42 is performed. The amount can be set arbitrarily. For example, by lowering the protruding height of the ridge 47 to reduce the gap between the inner peripheral surface of the discharge cylinder 43 and the outer peripheral surface of the coating portion 51a of the valve 50, the contents weighed in the measuring chamber R are subdivided. Can be discharged to. In the illustrated example, six ridges 47 extending along the container axis O from the upper end to the position in front of the lower end of the discharge cylinder 43 are arranged at equal intervals in the circumferential direction, but the number and arrangement of the ridges 47 are limited to this. Not done.

Returning to FIG. 1, the valve 50 is arranged in the measuring chamber R so as to be vertically movable along the container axis O direction. The valve 50 is manufactured from a synthetic resin such as polypropylene or polyethylene. The valve 50 is preferably made of high density polyethylene.

FIG. 4 shows the valve 50 as a single unit. The valve 50 includes a main body cylinder portion 51 and a valve cylinder portion 52. The main body cylinder portion 51 and the valve cylinder portion 52 extend in the container shaft O direction and are arranged coaxially with the container shaft O.

A closing portion 53 that closes the main body cylinder portion 51 is formed in the main body cylinder portion 51. The closing portion 53 divides the main body cylinder portion 51 into an coating portion 51a located above the closing portion 53 and an inner cylinder 51b located below the closing portion 53.

The coating portion 51a is formed in a bottomed tubular shape that opens upward with the closing portion 53 as the bottom portion. The coating portion 51a is inserted into the discharge hole 43a. The coating portion 51a has a length dimension that protrudes outward (upward) from the upper end of the discharge cylinder 43 at the top dead center of the valve 50 (the above-mentioned measuring position P1). As a result, the upper end portion of the coated portion 51a is configured to be in contact with the coated portion S. The coated portion 51a is formed with a locked portion 54 that protrudes inward in the radial direction and is locked to a locking cylinder 73 described later of the cap 70. As a result, the entire valve 50 is pulled up via the coating portion 51a as the cap 70 moves upward due to the detachment of the cap 70.

A protruding portion 55 projecting upward is formed on the upper surface of the closed portion 53. The protrusion 55 is formed in a columnar shape extending in the container axis O direction. The upper end surface of the protrusion 55 is located below the upper end surface of the coating portion 51a.

The mandrel 34 of the inner plug 30 is inserted into the inner cylinder 51b from below. Further, at the bottom dead center of the valve 50 (the above-mentioned initial state or the coating position P2), the lower end surface of the inner cylinder 51b is in contact with the pedestal 35 from above. The inner diameter of the inner cylinder 51b is preferably sized so that a gap is formed between the inner cylinder 30 and the outer peripheral surface of the mandrel 34 of the inner plug 30. As a result, the frictional resistance with the mandrel 34 when the valve 50 moves up and down is reduced.

A step portion 51c is formed on the outer peripheral surface of the inner cylinder 51b of the main body cylinder portion 51. The outer diameter of the inner cylinder upper portion 51b1 located above the step portion 51c in the inner cylinder 51b is larger than the outer diameter of the inner cylinder lower portion 51b2 located below the step portion 51c. The step portion 51c is formed in an annular shape. The step portion 51c is located below the closing portion 53.

Further, a fitting portion 56 is formed on the outer peripheral surface of the inner cylinder upper portion 51b1 of the inner cylinder 51b of the main body cylinder portion 51 at a portion facing the lower end portion of the discharge cylinder 43 at the above-mentioned measuring position P1. The fitting portion 56 is composed of a lower all-around seal portion 56a and a vertical rib portion 56b formed above the all-around seal portion 56a. The all-around seal portion 56a is formed adjacent to the upper end of the valve cylinder portion 52. The fitting portion 56 is fitted to the inner peripheral surface of the lower end portion of the discharge cylinder 43 of the movable valve 40 at the above-mentioned weighing position P1 (see FIGS. 6 and 7) to hold the valve 50 at the weighing position P1.

The valve cylinder portion 52 surrounds the inner cylinder lower portion 51b2 of the inner cylinder 51b from the outside in the radial direction. The upper end portion of the valve cylinder portion 52 is connected to the step portion 51c from the outside in the radial direction. The lower end of the valve cylinder portion 52 is terminated slightly above the lower end of the inner cylinder lower portion 51b2.

A seal portion 52a that is slidable on the inner peripheral surface of the side wall portion 33a of the partition wall 33 is formed at the lower end portion of the valve cylinder portion 52 as the valve 50 moves downward. The seal portion 52a is liquid-tightly fitted to the inner peripheral surface of the side wall portion 33a in the above-mentioned initial state or the coating position P2, and blocks communication between the measuring chamber R and the inflow hole 33c. The seal portion 52a is formed in a thin cylindrical shape as compared with other portions in the valve cylinder portion 52, and is formed in a tapered shape whose diameter increases toward the bottom. The length of the valve 50 protruding upward from the discharge cylinder 43 at the measuring position P1 is the distance along the container shaft O from the lower end of the sealing portion 52a at the measuring position P1 to the liquid-tight contact with the side wall portion 33a (seal start). Greater than the distance to the position). As a result, the seal portion 52a is liquid-tightly fitted to the inner peripheral surface of the side wall portion 33a before the deformation of the movable valve 40 is started when the valve 50 is pushed toward the inner plug side toward the coating position P2. After that, as the valve 50 moves downward, it slides on the inner peripheral surface of the side wall portion 33a.

A regulation portion 52b is provided at the upper end portion of the valve cylinder portion 52. The regulating unit 52b regulates the upward movement of the valve 50. The regulating portion 52b faces the lower end portion of the discharge cylinder 43 from below. When the valve 50 moves upward, the restricting portion 52b comes into contact with the lower end portion of the discharge cylinder 43 from below, so that further upward movement of the valve 50 is restricted.

Returning to FIG. 1, the nozzle 60 has a function as a shell that covers the movable valve 40 from the outside in the radial direction. The nozzle 60 is manufactured using a synthetic resin such as polypropylene or polyethylene as a material.

FIG. 5 shows the nozzle 60 as a single unit. The nozzle 60 includes a mounting cylinder 61, a flange portion 62, a lower covering portion 63, and an upper covering portion 64. The mounting cylinder 61, the flange portion 62, the lower covering portion 63, and the upper covering portion 64 are each formed coaxially with the container shaft O.

A plurality of protrusions 61a projecting inward in the radial direction from the lower end of the inner peripheral surface of the mounting cylinder 61 and engaging with the protrusions 21b of the mouth portion 21 of the container body 20 from below to maintain the mounted state of the nozzle 60. Is formed. The protrusions 61a may be continuously formed along the circumferential direction. Further, the mounting cylinder 61 has a protrusion 61b that protrudes inward in the radial direction at a position above the protrusion 61a on the inner peripheral surface thereof and engages with the protrusion 31b formed on the support portion 31 of the inner plug 30 from below. It is formed. The protrusions 61b are continuously formed along the circumferential direction. The protrusion 61b maintains the mounting state of the inner plug 30 in a state where the flange portion 41b of the movable valve 40 is sandwiched between the support portion 31 of the inner plug 30 and the flange portion 62 of the nozzle 60. As a result, the movable valve 40, the valve 50, and the inner plug 30 are assembled to the nozzle 60.

The flange portion 62 extends radially inward from the upper end of the mounting cylinder 61. The flange portion 62 sandwiches the flange portion 41b of the movable valve 40 with the upper surface of the support portion 31 of the inner plug 30.

The lower covering portion 63 has a dome shape extending upward from the radial inner edge of the flange portion 62, and mainly covers the pressure wall 42 of the movable valve 40 from the radial outside.

The upper covering portion 64 extends upward from the upper end of the lower covering portion 63. The upper covering portion 64 covers the discharge cylinder 43 from the outside in the radial direction while forming a slight gap with the discharge cylinder 43. A discharge cylinder 43 is movably inserted into the upper covering portion 64 in the container axis O direction. The discharge cylinder 43 projects upward from the upper covering portion 64 in the above-mentioned initial state. An annular flange portion 64a projecting inward in the radial direction is formed at the upper end portion of the upper covering portion 64. In the initial state of the movable valve 40, the seal step portion 46 formed on the outer surface of the discharge cylinder 43 abuts on the annular flange portion 64a from below. As a result, in the initial state of the movable valve 40, the discharge cylinder 43 of the movable valve 40 and the upper covering portion 64 of the nozzle 60 are sealed.

Returning to FIG. 1, the cap 70 is detachably attached to the mouth portion 21 of the container body 20 and covers the entire coating mechanism including the nozzle 60, the movable valve 40, the valve 50, and the inner plug 30. The cap 70 raises the valve 50 as the container body 20 separates from the mouth portion 21. The cap 70 includes a peripheral wall portion 71 that surrounds the coating mechanism from the outside in the radial direction, and a top wall portion 72 that closes the upper end opening of the peripheral wall portion 71.

The peripheral wall portion 71 is a double cylinder, and a female screw 71a screwed to the male screw 21a of the mouth portion 21 is formed on the lower inner peripheral surface of the tubular portion arranged inside the double cylinder portion 71. The cap 70 may be attached to and detached from the container body 20 without being rotated around the container shaft O, for example, by being attached to the mouth portion 21 by undercut fitting.

A locking cylinder 73 and a surrounding cylinder 74 extending downward are arranged on the top wall portion 72. Instead of the locking cylinder 73, a plurality of intermittently formed locking pieces may be formed around the container shaft O. The locking cylinder 73 and the surrounding cylinder 74 are arranged coaxially with the container shaft O. The lower end portion of the locking cylinder 73 is fitted in the coating portion 51a. At the lower end of the locking cylinder 73, a locking portion 73a that is detachably locked to the above-mentioned locked portion 54 of the coating portion 51a is formed. The protrusion 55 is inserted into the locking cylinder 73. The surrounding cylinder 74 is fitted to the upper covering portion 64 of the nozzle 60 so as to be detachably detachable from the outside in the radial direction.

Further, on the lower surface side of the top wall portion 72, an annular convex contact ring 75 protruding downward at a position corresponding to the discharge cylinder 43 of the movable valve 40 is formed. The contact ring 75 abuts on the upper end surface of the discharge tube 43 at the initial position of the movable valve 40. As a result, the contents remaining at the tip of the discharge cylinder 43 are prevented from leaking to the outer surface side of the discharge cylinder 43.

Next, the operation of the above-mentioned coating type container 10 will be described. In the following description, the initial state is the state in which the cap 70 is attached to the mouth portion 21 of the container body 20 as shown in the figure. In the coating type container 10 in the initial state, the valve 50 blocks the communication between the inside of the measuring chamber R and the inside of the container body 20 through the inflow hole 33c, and communicates the inside and the outside of the measuring chamber R through the discharge hole 43a. It is located at the same position as the coating position P2 (see FIG. 8). In the initial state, the tip surface of the valve 50 is located below the tip surface of the movable valve 40 and above the tip surface of the nozzle 60.

In the coating type container 10 in the initial state, the screwing between the mouth portion 21 of the container body 20 and the cap 70 is released, and the cap 70 is removed. As shown in FIG. 6, when the cap 70 and the container body 20 are relatively rotated in the direction in which the screwing is released, the cap 70 moves upward with respect to the container body 20 due to this relative rotation. At this time, since the cap 70 is locked to the valve 50 via the locking portion 73a and the locked portion 54, the valve 50 is guided by the mandrel 34 as the cap 70 moves upward. Is pulled up.

As shown in the figure, the valve 50 is pulled up together with the cap 70 until the regulating portion 52b abuts on the lower end portion (movable valve 40) of the discharge cylinder 43 and further upward movement is restricted. When the cap 70 and the container body 20 are further rotated relative to each other in the direction in which the screwing is released, the cap 70 moves upward with respect to the valve 50, so that the locking portion 73a and the locked portion 54 are brought into contact with each other. Overcome each other. As a result, the lock between the cap 70 and the valve 50 is released, and the cap 70 is removed.

In the state where the cap 70 is removed, the seal portion 52a of the valve 50 is separated from the lower part of the side wall portion 33a of the inner plug 30, and the inflow hole 33c of the inner plug 30 and the inside of the measuring chamber R are communicated with each other. .. On the other hand, the all-around seal portion 56a of the fitting portion 56 of the valve 50 is liquid-tightly fitted to the inner peripheral surface of the discharge cylinder 43, and the communication between the measuring chamber R and the discharge hole 43a is cut off. Since the fitting portion 56 having the lower all-around seal portion 56a and the upper vertical rib portion 56b is provided, the valve 50 is securely held by the discharge cylinder 43 at the raised position. As described above, immediately after the cap 70 is removed, the valve 50 cuts off the communication between the inside of the measuring chamber R through the discharge hole 43a and the outside, and the inflow hole 33c between the inside of the measuring chamber R and the inside of the container body 20. It is located at the weighing position P1 through which communication is performed.

Next, the contents in the container body 20 are made to flow into the measuring chamber R. As shown in FIG. 7, when the coating type container 10 is placed in the inverted position with the valve 50 in the measuring position P1, the contents in the container body 20 flow into the measuring chamber R through the inflow hole 33c. On the other hand, at the measuring position P1, since the communication between the discharge hole 43a and the inside of the measuring chamber R is blocked by the fitting portion 56 of the valve 50, the outflow of the contents to the outside through the discharge hole 43a is prevented. ing. As a result, a predetermined amount of contents are weighed in the measuring chamber R.

Subsequently, as shown in FIG. 8, when the coating portion 51a is pressed against the coated portion S such as the scalp of the human body while the coating type container 10 is maintained in the inverted posture, the coating portion 51a of the valve 50 becomes the movable valve 40. Since it protrudes from the discharge cylinder 43, the valve 50 moves to the inner plug 30 side before the discharge cylinder 43 of the movable valve 40 is pushed in, and sealing by the seal portion 52a of the valve 50 is started. The valve 50 is pushed in while the inner cylinder 51b is guided by the mandrel 34. The valve 50 moves to the coating position P2 while the seal portion 52a slides on the inner surface of the side wall portion 33a of the partition wall 33. The movement of the valve 50 to the inner plug 30 side is restricted by the inner cylinder 51b of the valve 50 hitting the pedestal 35. During this movement, air that may exist in the gap between the inner cylinder 51b and the mandrel 34 is released into the container body 20 through the slit 35a and the inflow hole 33c formed in the pedestal 35.

Further, in the process of the valve 50 moving from the weighing position P1 to the coating position P2, the position of the tip surface of the valve 50 in the container axis O direction is the position of the tip surface of the discharge cylinder 43 (movable valve 40) in the container axis O direction. When the position becomes equivalent, the discharge cylinder 43 is pressed against the coated portion S. Then, in response to the pressing force, the pressure wall 42 of the movable valve 40 is elastically deformed in the direction of the container axis O to reduce the internal volume of the measuring chamber R, and the contents of the measuring chamber R are pressurized to discharge holes. It is discharged from 43a. When the pushing of the discharge cylinder 43 is weakened or released, the movable valve 40 is restored and deformed as shown in FIG. 9, and the discharge cylinder 43 protrudes from the nozzle 60 again. At this time, the upper end of the discharge cylinder 43 is located above the upper end of the valve 50, and the discharge cylinder 43 is pressed against the coated portion S and released so as to elastically deform the movable valve 40 by this difference. It is also possible to discharge the contents into small portions by repeating the above.

As described above, according to the coating type container 10 according to the present embodiment, the movable valve 40 is formed so as to be elastically deformable in the container axis O direction, so that the movable valve 40 can be formed by utilizing the pressing force of the discharge cylinder 43. The contents can be discharged by elastically deforming and pressurizing the inside of the measuring chamber R. Further, in the present embodiment, when the movable valve 40 is not elastically deformed or is restored and deformed, the internal pressure of the measuring chamber R is low, and unexpected outflow of the contents can be prevented. Further, by repeating the elastic deformation and the restoration deformation of the movable valve 40, the contents can be divided into a plurality of times and dispensed.

Further, the nozzle 60 has an annular flange portion 64a protruding inward in the radial direction at the upper end thereof, and the movable valve 40 has a seal step portion 46 on the outer peripheral surface of the discharge cylinder 43, and in the initial state, the annular flange portion 64a. And the seal step portion 46 are in contact with each other in the vertical direction, so that the contents adhering to the tip of the discharge cylinder 43 after use or the like invade between the discharge cylinder 43 and the nozzle 60 and solidify to form the movable valve 40. Problems that cause malfunctions are prevented.

Further, since the cap 70 has a contact ring 75 that abuts on the upper end surface of the discharge cylinder 43 of the movable valve 40, the contents remaining in the discharge cylinder 43 after use or the like leak to the outer surface side of the discharge cylinder 43. It is possible to more reliably prevent the problem that the contents enter and solidify between the discharge cylinder 43 and the nozzle 60 and the movable valve 40 malfunctions.

Further, the valve 50 has a fitting portion 56 composed of an all-around seal portion 56a and a vertical rib portion 56b formed above the all-around seal portion 56a at a portion facing the discharge cylinder 43 at the weighing position P1. Therefore, the valve 50 can be reliably held at the top dead center (weighing position P1) at the time of weighing.

Further, since a gap is provided between the mandrel 34 of the inner plug 30 and the inner cylinder 51b of the valve 50, the valve 50 can move up and down smoothly. Further, since the slit 35a for air escape is formed in the pedestal 35 with which the lower end of the inner cylinder 51b of the valve 50 abuts at the coating position P2, the mandrel 34 and the valve 50 are formed in the inverted posture of the coating type container 10. Since the air that may exist between the valve and the valve can be released into the container body 20 through the slit 35a, the valve 50 can be lowered even more smoothly.

Further, since the mandrel 34 of the inner plug 30 is provided with a locking projection 34a to which the inner cylinder 51b of the valve 50 engages at the coating position P2, the pressure wall 42 of the movable valve 40 is in an elastically deformed state. It is possible to prevent a problem that the valve 50 is lifted by the negative pressure of the measuring chamber R at the time of returning and the communication between the measuring chamber R and the inflow hole 33c is released.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

According to the present invention, it is possible to provide a coating type container capable of preventing malfunction of the movable valve due to solidification of the contents while enabling discharge by pressurizing the contents.

10 Coating type container 20 Container body 21 Mouth 30 Inner plug 33c Inflow hole 40 Movable valve 42 Pressurized wall 43 Discharge cylinder 46 Seal step 50 Valve 60 Nozzle 64a Circular flange 70 Cap 75 Contact ring P1 Weighing position P2 Coating position ( initial state)
R Measuring chamber S Applied part

Claims (2)

The container body that houses the contents and
An inner plug that is attached to the mouth of the container body and has an inflow hole that communicates with the inside of the container body.
An elastically deformable pressure wall that partitions a measuring chamber that communicates with the inner plug through the inflow hole into the container body, and an elastically deformable pressure wall that extends upward from the pressure wall and has a flange on the outer peripheral surface. With a movable valve with a discharge tube,
A valve provided in the measuring chamber and having a tip protruding outward from the discharge cylinder,
A nozzle that covers the movable valve from the outside in the radial direction,
A cap that is detachably attached to the mouth of the container body and covers the inner plug, the valve, the movable valve, and the nozzle is provided.
The valve is raised by removing the cap, is lowered by a measuring position that cuts off communication between the discharge cylinder and the measuring chamber, and is pressed against the portion to be coated, and is lowered by pressing the discharge cylinder and the measuring chamber. It can be moved to the coating position that communicates with the measuring chamber .
At the coating position, the pressure wall is elastically deformed by pressing the tip of the discharge cylinder of the movable valve protruding upward from the nozzle against the coated portion, and this elastic deformation reduces the internal volume of the measuring chamber. It is a coating type container that discharges when the contents are pressurized.
The nozzle has an annular flange portion that projects radially inward at the upper end thereof.
The movable valve has a seal step portion on the outer peripheral surface of the discharge cylinder at a position above the flange portion .
A coating type container characterized in that, in an initial state, the annular flange portion and the seal step portion are in contact with each other in the vertical direction. The cap includes a peripheral wall portion that surrounds the mouth portion, the inner plug, the valve, the movable valve, and the nozzle of the container body from the outside in the radial direction, and a top wall portion that closes the upper end opening of the peripheral wall portion. Have,
The coating type container according to claim 1, wherein the top wall portion has a contact ring that abuts on the upper end surface of the discharge cylinder of the movable valve.

Images