JP4301365B2 - Quantitative dispensing cap - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a quantitative dispensing cap that is used by being attached to the mouth of a housing, stores a chemical solution such as a medicinal hair restorer, and a liquid such as cosmetics, and can measure and take out a single use amount.

For example, Patent Document 1 relates to a quantitative dispensing container that contains a medicinal liquid such as a medicinal hair restorer and can be used to measure and stabilize a single use amount, and an opening is formed at the top of the mouth of the housing. A cap-shaped metering cylinder member is assembled, and the metering cylinder member is used as a metering liquid chamber, and the metering liquid chamber is opened and closed by the valve member, and the valve member is pressed against the coated surface such as the head. There is a description of a quantitative dispensing container in which the seal moves to the inside, the seal of the spout formed in the valve member is canceled, and the content liquid in the quantitative liquid chamber is discharged.
JP 2002-337910 A

  However, in recent years, expensive medicinal hair restorers and the like have come to be widely used, and in using such an expensive chemical solution, the function that can be used without waste by finely adjusting the discharge amount depending on the site In addition, in the case of a chemical solution especially for hair, a function of discharging a desired amount of a chemical solution to a certain site while applying a stimulus by pressing the surface to be coated continuously (tapping) by the application site. High-level discharge functions such as these have been required.

  Therefore, the present invention has been created in view of the above-described demands, and has a function capable of finely adjusting the amount of discharged liquid, and discharges a desired amount of liquid to a certain portion while continuously pressing in a tapping manner. An object of the present invention is to provide a high-performance dispensing container in combination with a casing, with the object of creating a quantitative dispensing cap having a discharge mechanism having a function to perform the above.

Among the means of the present invention for solving the above technical problem, the means of the invention according to claim 1 is:
Covering the opening of the mouth of the housing, and having an inner plug body with a through-hole for passing the content liquid;
It has a top wall with a spout formed in the center, has a cap-shaped cylindrical cap body that tightly covers the inner plug and is externally fitted to the mouth, and a metering liquid chamber is disposed inside.
It has a top plate that forms an insertion port at the center and has a discharge hole formed therethrough, and this top wall is tightly fitted to the upper end of the cap body and a gap passage is formed between the top wall) Having a short tubular discharge valve body made of a soft material that covers
Having an overcap with a stopper piece hanging down at the top to close the gap passage by bringing the top plate of the discharge valve body into close contact with the top surface of the top wall;
Having a shaft body that is urged upward by a spring at the center portion of the inner plug body and is erected so as to be movable up and down in a state in which the tip portion is in contact with the plug piece;
With the overcap removed, the top plate is elastically restored, the close contact with the top wall is eliminated, the gap passage is opened, the shaft is raised, and the tip is the spout And the inside plug body through-hole is closed, and in the inverted state, the liquid content in the metered liquid chamber is configured to be able to enter the gap passage and the discharge hole from the peripheral edge of the spout,
It is in.

  According to the said structure of Claim 1, in the state which assembled | attached the fixed_quantity | volume_dispersion cap of this invention to the opening part of the housing | casing, and attached the overcap, the top piece of the discharge valve body made from a soft material is a plug piece of an overcap Close to the top wall of the cap body to close the gap passage.

  When the inverted posture is set in this state, the content liquid in the housing flows into the cap body through the through hole of the inner plug body, and then returns to the upright posture to return to the metered liquid chamber disposed in the cap body. A certain amount of content liquid is stored in the container.

  Next, when the overcap is removed, the stopper piece is removed and the top plate of the discharge valve body is lifted upward by its elastic restoring force, and the close state between the top plate and the top wall is eliminated, and the gap between the top plate and the top wall is eliminated. A passage is formed. At the same time, the shaft whose top end is in contact with the lower end surface of the stopper piece while being biased upward by the spring moves upward, and the front end is inserted into the spout on the top wall and the top plate insertion opening. It becomes. At the same time, the through hole of the inner plug is closed by the upward movement of the shaft.

  When the liquid is inverted again, the content liquid in the metering liquid chamber can enter the discharge hole formed in the top plate of the discharge valve body through the peripheral edge of the spout and the gap passage. In this state, when the discharge valve body is brought into contact with the surface to be coated such as the head, and further pressed against the surface to be coated, the top plate of the discharge valve body is deformed to be pressed downward, and the content liquid in the gap passage is The liquid is discharged from the discharge hole in a pressurized state. That is, it is possible to finely adjust the discharge speed of the content liquid and the discharge amount by one press by adjusting the pressing force to the coated surface by hand. (Here, the upper and lower positional relationships are described based on the upright state of the dispensing container. The same applies to the following description.)

  When the pressing state is released, the top plate returns to the original position by the elastic restoring force, the liquid content enters the gap passage again, and the pressing can be repeated many times. It is also possible to discharge the amount of content liquid. Further, when using a chemical liquid hair restorer or the like, a certain amount of chemical liquid can be discharged while applying tapping stimulation to the head by quickly repeating the tapping operation.

  If the flow passage width of the spout peripheral edge and the gap flow passage and the size of the discharge hole are made relatively large, the discharge valve body is simply brought into contact with the surface to be coated such as the head, and the capillary tube is discharged from the discharge hole. It is also possible to cause the content liquid to slowly flow out so that the internal liquid flows out.

  If the top plate has no protrusions and the shaft body can be moved up and down together with the top plate, the shaft body moves downward together with the top plate against the repulsive force of the spring that urges upward. Since the original state is restored by the force, the pressing force can be more easily adjusted using the elastic deformation of the spring, and the discharge amount of the content liquid can be finely adjusted.

  Further, by using the elastic deformation of the spring, a comfortable pressing force can be repeatedly applied to the head more quickly, and the massage effect for the scalp and the like can be further improved.

  According to a second aspect of the present invention, in the first aspect of the present invention, the spire projecting piece having a discharge passage from the discharge hole of the top plate of the discharge valve body to a discharge opening extending from the discharge hole to the tip opening. It is in having projected.

  With the above-described configuration according to claim 2, for example, when discharging to the head by a projecting spire projecting piece, a hair-restoring agent or the like can be discharged more directly to the background, and the background is stimulated with a sharp tip. It becomes possible to discharge while giving.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the liquid reservoir is formed in a concave shape on the upper surface of the top wall of the cap body.

  According to the above configuration of the third aspect, the amount of the content liquid that can be held between the top wall and the top plate can be adjusted depending on the size of the liquid pool, and the discharge amount by one pressing operation can be adjusted.

The invention according to claim 4 is the invention according to claim 1, 2, or 3,
The inner plug body has an inner cylinder piece with a through hole formed in a portion from the bottom wall to the lower peripheral wall, and is surrounded like an outer casing at a height position higher than the through hole forming portion on the outer peripheral surface of the inner cylinder piece. Providing the flange piece provided, and fitting it closely to the mouth part of the housing through the flange piece to form a shape covering this mouth part,
From the upper end of the assembled cylinder that is externally fitted to the mouth portion of the housing, the cap body is formed into a shape in which a top-cylindrical outer cylinder having a top wall with a spout formed in the center is erected,
Forming a bottomed cylindrical quantitative liquid chamber with a flange piece at the bottom between the upper peripheral wall of the middle cylinder piece and the outer cylinder;
It is in.

  The above-described configuration according to the fourth aspect is a specific configuration formed by the metering solution chamber, and can form the metering solution chamber with a simple configuration in cooperation with the action of the valve piece of the shaft.

  According to a fifth aspect of the present invention, in the first, second, third, or fourth aspect of the invention, the support shaft body is erected from the central portion of the inner plug body, and is upwardly biased by the support shaft body. The bottom end of the shaft is externally fitted so that it can be moved up and down, and a top-like cylindrical shaft body is erected and a valve piece for opening and closing the through hole of the inner plug body is attached to the shaft body.

  The structure according to claim 5 is a specific configuration of the shaft body standing arrangement method and the means for opening and closing the through hole of the inner plug body, and the overhang while maintaining the standing posture of the shaft body with a simple configuration. It is possible to easily open and close the through-hole by cooperating with the cap piece of the cap.

  According to a sixth aspect of the present invention, in the first, second, third, fourth, or fifth aspect, the cap body is made of a transparent or translucent synthetic resin.

  According to the above configuration of the sixth aspect, the amount of the content liquid in the fixed liquid chamber can be used while confirming from the outside, and a sense of security can be given to the user.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the invention, the discharge amount by one pressing can be finely adjusted by adjusting the pressing force to the surface to be coated. When the pressing state is released, the top plate returns to its original position due to the elastic restoring force, so that pressing can be repeated many times, and a desired amount of content liquid can be discharged to a certain location depending on the number of pressing times. It becomes possible.

  In particular, when a hair restorer or the like is used, a certain amount of chemical solution can be discharged while applying a tapping stimulus to the head by quickly repeating the tapping operation.

  In addition, when the shaft can be moved up and down together with the top plate, the pressing force can be adjusted more easily using the elastic deformation of the spring, and the discharge amount of the content liquid can be adjusted more delicately. In addition, a comfortable pressing force can be repeatedly applied to the head more quickly, and the massage effect of the scalp and the like can be further improved.

  In the invention of claim 2, it is particularly effective for the use of hair growth and the like, and the spire protruding piece can directly discharge the hair growth agent etc. by the ground while giving stimulation to the ground with a sharp tip. At the same time, the content liquid can be discharged.

  In the invention described in claim 3, the amount of the content liquid that can be held between the top wall and the top plate is adjusted depending on the size of the liquid pool by forming a liquid pool in a concave shape on the top surface of the top wall of the cap body. It is possible to adjust the discharge amount by one press.

  The invention according to claim 4 is a specific structure formed by the metering liquid chamber, and the metering liquid chamber can be formed with a simple structure in cooperation with the action of the valve piece of the shaft body.

  The invention according to claim 5 is a specific configuration of the shaft body standing arrangement method and the means for opening and closing the through hole of the inner plug body, while maintaining the shaft body standing posture with a simple configuration. The through hole can be easily opened and closed by cooperation with the cap piece of the overcap.

  In the invention of claim 6, by molding the cap body with a transparent or translucent resin, the amount of the content liquid in the metering liquid chamber can be confirmed from the outside. A sense of security can be given.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 show a first embodiment of a quantitative dispensing cap of the present invention, and shows a quantitative dispensing cap fitted to a mouth 2 of a housing 1 and assembled. (Hereinafter, this combination of the housing and the quantitative dispensing cap is referred to as a dispensing container.)

  The quantitative dispensing cap according to the present invention includes an inner plug body 21 that is tightly fitted to the mouth portion 2 of the housing 1, and a cap-shaped tubular cap body that covers the inner plug body 21 and is fitted to the mouth portion 2. 11, a discharge valve body 41 that is closely fitted to the upper end of the cap body 11, a shaft body 31 that can be moved up and down on the inner plug body 21, and an overcap 51. The

  The inner plug body 21 has a bottomed cylindrical middle cylinder piece 22 having a bottom wall in which a support shaft body 23 is erected from the center, and a plurality of passages are formed from the peripheral wall to the bottom wall of the middle cylinder piece 22. A hole 24 is formed, and when the pouring container is turned upside down, a part of the content liquid L stored in the housing 1 moves above the inner plug body 21 through the through hole 24.

  Further, a flange piece 25 is provided around the outer peripheral surface of the inner cylindrical piece 22 at a height position higher than the formation portion of the through hole 24, in the present embodiment, at a substantially central height position. The inner plug body 21 is in a state in which the fitting portion 26 attached to the outer peripheral edge of the flange piece 25 is sandwiched between the upper end surface of the mouth portion 2 of the housing 1 and the fitting short cylinder piece 18 of the cap body 11 described later. The opening of the mouth 2 is covered.

  Further, the support shaft body 23 has a cylindrical shape with a tip, and a tip shaft 23b having a diameter reduced from the top portion is provided upright via a step portion 23a.

  The cap main body 11 is made of a transparent synthetic resin, and is engaged with the engagement periphery 3 of the mouth portion 2 of the housing 1 and is attached to the mouth portion 2 from the upper end of the assembled cylinder 12 to the shoulder portion 17. The outer cylinder 13 having a top-like cylindrical shape is erected through the outer wall 13, and a spout 15 is formed at the center of the top wall 14 of the outer cylinder 13, and a plurality of concave shapes are formed on the upper surface of the top wall 14. The liquid reservoir 16 is formed. A hinge cap 52, which will be described later, is assembled and fixed to the upper end portion. The fitting circumference 19 is provided around.

  An insertion short cylinder piece 18 is suspended from the shoulder portion 17, and the insertion short cylinder piece 18 is fitted into the fitting portion 26 of the inner plug body 21 so that the cap body 11 and the inner plug body 21 are assembled tightly. A bottomed cylindrical metered liquid chamber M having a flange piece 25 as a bottom is formed between the upper part of the peripheral wall of the middle cylinder piece 22 of the inner plug body 21 and the outer cylinder 13. In this embodiment, a transparent synthetic resin is used for the cap body 11 so that the amount of the content liquid L in the fixed volume chamber M can be confirmed from the outside. However, a transparent resin or an opaque resin is used. Whether to use can be selected according to the purpose in consideration of the appearance and the like.

  The discharge valve body 41 made of a soft material has a short cylindrical shape, and is assembled by closely fitting the fitting cylinder 42 to the upper end portion of the outer cylinder 13. An insertion port 44 having substantially the same diameter is formed coaxially with the spout 15 of the cap body 11 in the central portion of the top plate 43, and a plurality of discharge holes 45 are formed therethrough. And the top plate 43 covers this top wall 14 in the state which formed the gap | interval channel | path P used as the path | route of a content liquid between the top walls 14 of the cap main body 11 (refer FIG. 2).

  In addition, as a soft material used for the discharge valve body 41, soft materials, such as various rubber materials, polyolefin type | system | group, a polyester-type elastomer, etc. can be used, for example.

  In this embodiment, a hinge cap 52 having a hinge portion 55 is used as the overcap 51, and a cylindrical plug piece 53 having a pressing step portion 54 is provided at the central portion of the lid 56 which is the top portion. Has been. This plug piece 53 is inserted into the insertion port 44 and the spout 15 in a state of being covered, and the pressing step portion 54 presses the top plate 43 made of a soft material against the top wall 15 so that the gap passage P is closed. In addition, the insertion port 44 of the top plate 43 is brought into a liquid-tight state, and abuts against the upper end surface of the distal end portion 32 of the shaft body 31 described later.

  The shaft body 31 has a cylindrical shape with a top, and a contact step portion 33 is formed on the top portion of the shaft body 31, and a columnar tip portion 32 is erected. A plurality of vertical grooves 35 serving as passages for the content liquid L are formed in a portion from the contact step portion 33 to the tip portion 32. In addition, a tapered outer flange-like valve piece 34 is provided on the outer peripheral surface of the shaft body 31.

  The shaft body 31 can be raised and lowered while being urged upward by the spring S, and the lower end portion of the shaft body 31 is fitted on the support shaft body 23 of the inner plug body 21 so as to be erected. The lower end portion is fitted onto the tip shaft 23b of the support shaft body 23, and both the upper and lower end surfaces thereof are brought into contact with the step portion 23a of the support shaft body 23 and the top portion of the shaft body 31, so that the posture and the shaft body 31 are fixed. The energized state is maintained.

An embodiment of the use of the dispensing container in which the quantitative dispensing cap of the present embodiment composed mainly of five members having the above-described configuration is attached to the housing 1 will be described.
First, in a state where the lid 56 of the hinge cap 52 is covered, the lower end surface of the stopper piece 53 of the hinge cap 52 abuts on the upper end surface of the distal end portion 32 of the shaft body 31 and the periphery of the valve piece 34 of the shaft body 31. The tip is located in the formation part of the through hole 24 and is inscribed in the middle cylinder piece 22. In this state, the dispensing container is inverted, and the content liquid L in the casing 1 body 4 is caused to flow into the cap main body 11 through the through hole 24, and when it is brought into the upright state again, as shown in FIG. The chamber M is filled with the content liquid L.

  Next, when the lid body 56 is removed (see FIG. 2), the top plate 43 of the discharge valve body 41 is elastically restored upward as the plug piece 53 comes out of the spout 15 and the insertion port 44, and the top wall 14 is restored. And the gap passage P is opened. At the same time, the shaft body 31 is raised by the repulsive force of the spring S, and the tip portion 33 is inserted into the spout 15 and the insertion port 44. At this time, the upper limit of the shaft cylinder body 31 is determined by the contact of the contact step portion 33 with the top wall 14. In this embodiment, the upper end surface of the tip portion 33 is defined as the upper surface of the top plate 43 of the discharge valve body 41. Match. In addition, the position of this front-end | tip part 33 can also be made to project from the top wall 14, for example depending on a use purpose.

  Further, when the shaft 31 is raised, the peripheral tip of the valve piece 34 inscribed in the middle cylinder piece 22 is positioned higher than the portion where the through hole 24 of the middle cylinder piece 22 is formed, and the through hole 24 is closed and inverted. Inflow of the content liquid L from the housing 1 into the cap body 11 in the state is stopped.

  Next, when the liquid is inverted again, the content liquid L in the metering liquid chamber M passes through the peripheral edge of the spout 15, the vertical groove 35, and the gap passage P to the discharge hole 45 formed in the top plate 43 of the discharge valve body 41. Further, the liquid L gradually flows out so that the liquid in the capillary flows out from the discharge hole 45 by the contact between the discharge valve body 41 and the application surface H such as the head. The outflow rate of the content liquid L is mainly determined by the viscosity of the liquid, the amount of the metered liquid, the periphery of the spout 15, the width of the longitudinal groove 35 and the gap channel, and the size of the discharge hole 45.

  When the dispensing container is manually pressed against the application surface H from the state of contact with the application surface H, the shaft body 31 descends against the repulsive force of the spring S, and the top plate 43 is applied to the top wall 14. It is possible to increase the discharge speed from the discharge hole 45 by pressing the content liquid L in the gap passage P and the liquid reservoir 16 in a pressurized state. That is, by adjusting the pressing force to the coated surface H by hand, the discharge speed of the content liquid L and the discharge amount by one pressing can be finely adjusted and used without waste. (See Figure 4)

  When the pressing state is released, the shaft 31 is returned to the original position by the spring S and the top plate 43 by the elastic recovery force, and enters the gap passage P so that the content liquid L is sucked again. In this way, the pressing operation can be repeated a number of times, and a desired amount of the content liquid can be discharged to a predetermined portion of the coated surface H depending on the number of pressing times.

  Furthermore, since the pressing operation can be repeated as described above, a comfortable pressing force can be quickly and repeatedly applied to the head using the elastic deformation of the spring S in a tapping manner (as if hitting), A massage effect can be imparted to the scalp and the like.

  For example, by setting the diameter of the discharge hole 45 or the like, it is possible to prevent the content liquid L from almost flowing out in a state where the pouring container is in an inverted position, and the liquid is discharged away from the coated surface H in the inverted state. Even if the site is changed, useless outflow of the content liquid L can be eliminated, and the application operation to a plurality of sites is easy and economical.

  FIGS. 5-7 shows 2nd Example of the extraction | pouring cap of this invention, and shows the state which carried out the fitting assembly | attachment of the fixed_quantity | specification extraction cap to the opening part 2 of the housing 1. FIG. As with the quantitative dispensing cap of the first embodiment, it is mainly composed of five members: an inner plug body 21, a cap body 11, a discharge valve body 41, a shaft body 31, and an overcap 51. The overcap 51 is not a hinge type but a type that is used by being removed.

  The second embodiment is characterized by the shape of the discharge valve body 41, and a spire having discharge passages 47 extending from the opening edge of the discharge hole 45 to the left and right of the top plate 43 and extending from the discharge hole 45 to the tip opening inside. The protruding piece 46 has a protruding shape.

  By using the spire protrusion 46, for example, when using a hair-growing agent or the like, the content liquid can be directly discharged while being stimulated to the background with a sharp tip without being disturbed by the hair.

  In the second embodiment, since the spire protrusion 46 protrudes from the top plate 43, the shaft body 31 does not move up and down by the pressing operation, but the top plate 14 can be moved up and down by the elastic force of the top plate 14. As in the first embodiment, the discharge amount can be adjusted. Further, depending on the purpose, the tip of the tip 32 of the shaft 31 can be shaped like a spire and protruded in the same manner as the spire protrusion 46, and the elastic deformation of the spring S can be used for the pressing operation.

  The quantitative dispensing cap of the present invention can discharge a desired amount to a certain place on the coated surface without waste while finely adjusting the discharge amount of the content liquid by the pressing force on the coated surface. Since the operation can be repeated continuously, a massage effect can be exerted. In particular, it is expected to be used in applications such as expensive medicinal hair restorers.

It is a half vertical side view which shows the state which assembled | attached the 1st Example of the fixed quantity injection cap of this invention to the housing. FIG. 2 is a semi-vertical side view showing a state where an overcap is removed in FIG. 1. It is a half vertical side view which shows the use condition of the fixed quantity pouring cap of FIG. In FIG. 3, it is a half vertical side view which shows the state pressed on the to-be-coated surface. It is a half vertical side view which shows the state which assembled | attached to the housing of 2nd Example of the fixed_quantity | quantitative_assay cap of this invention. FIG. 6 is a half vertical side view showing a state in which the overcap is removed in FIG. 5. FIG. 6 is a semi-vertical side view showing a usage state of the quantitative dispensing cap of FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Housing 2; Mouth part 3; Locking circumference 4; Body part 11; Cap main body 12; Assembled cylinder 13; Exterior cylinder 14; Top wall 15; Outlet 16; Short cylindrical piece 19; fitting peripheral strip 21; inner plug body 22; intermediate cylindrical piece 23; support shaft body 23a; stepped portion 23b; tip shaft 24; ; Tip portion 33; contact step 34; valve piece 35; longitudinal groove 41; discharge valve body 42; fitting cylinder 43; top plate 44; insertion port 45; discharge hole 46; spire protruding piece 47; Cap 52; Hinge cap 53; Plug piece 54; Pressing step portion 55; Hinge portion 56; Lid S; Spring P; Gap passage L; Content liquid M;

Claims (6)

Covering the opening of the mouth part (2) of the housing (1) and having a through hole (24) for passage of the content liquid (L), a spout ( 15) has a top wall (14), tightly covers the inner plug (21) and is externally fitted to the mouth (2), and a metering liquid chamber (M) is disposed therein. The top body of the cap body (11) has a top cylindrical cap body (11) and a top plate (43) formed with an insertion port (44) in the center and a discharge hole (45). A short-cylinder discharge valve body (41) made of a soft material that covers the top wall (14) in a state in which a gap passage (P) is formed between the top wall (14) and the top wall (14). And an overcap having a plug piece (53) hanging down at the top to close the gap passage (P) by bringing the top plate (43) of the discharge valve body (41) into close contact with the top surface of the top wall (14) (51) and a central portion of the inner plug body (21) are urged upward by a spring (S), and can stand up and down with the tip end portion (32) in contact with the plug piece (53). The top plate (43) is elastically restored in a state where the overcap (51) is removed, and the intimate contact with the top wall (14) is eliminated. Thus, the gap passage (P) is opened, the shaft (31) is raised, and the tip (32) is inserted into the spout (15) and the insertion port (44) and the middle The through hole (24) of the plug (21) is closed, and in the inverted state, the liquid content (L) in the metering liquid chamber (M), the gap passage (P) from the peripheral edge of the spout (15) And a quantitative dispensing cap that allows entry into the discharge hole (45). Spire protrusion (46) formed with a discharge passage (47) from the opening edge of the discharge hole (45) of the top plate (43) of the discharge valve body (41) to the inside of the discharge hole (45) to the tip opening. The quantitative dispensing cap according to claim 1, wherein a protruding portion is provided. 3. The quantitative dispensing cap according to claim 1, wherein a liquid reservoir (16) is formed in a concave shape on the upper surface of the top wall (14) of the cap body (11). The inner plug body (21) has an inner cylindrical piece (22) in which a through hole (24) is formed in a portion from the bottom wall to the lower peripheral wall, and the through hole (22) on the outer peripheral surface of the inner cylindrical piece (22) 24) A flange piece (25) is provided around the outer wall in a height position higher than the formation portion, and the flange piece (25) is closely fitted to the mouth (2) of the casing (1) through the flange piece (25). The cap (11) is shaped so as to cover the mouth (2), and the cap body (11) is poured from the upper end of the assembled cylinder (12) fitted around the mouth (2) of the housing (1) to the center. The top cylinder (13) having a top wall (14) that forms an outlet (15) is formed in an upright shape, and between the upper peripheral wall of the middle cylinder piece (22) and the outer cylinder (13). The metering-out cap according to claim 1, 2, or 3, wherein a bottomed cylindrical metering liquid chamber (M) having a flange piece (25) as a bottom is formed on the cap. A support shaft body (23) is erected from the center portion of the inner plug body (21), and the bottom end portion is externally fitted to the support shaft body (23) so as to be able to move up and down while being urged upward. The shaft body (31) is erected and a valve piece (34) for opening and closing the through hole (24) of the inner plug body (21) is attached to the shaft body (31). Item 5. A quantitative dispensing cap according to Item 1, 2, 3 or 4. 6. A quantitative dispensing cap according to claim 1, wherein the cap body (11) is made of a transparent or translucent synthetic resin.

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