JP2007297059A - Delivery instrument for two liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a delivery instrument for two liquids which can deliver the liquid of two layer structure keeping the outer periphery of a first liquid covered with a second liquid, and has a simple structure and can be manufactured at low cost. <P>SOLUTION: The delivery instrument for two liquids is equipped with a container body A which is equipped with a first cylinder 3a into which a first piston B<SB>1</SB>is fitted so as to be slidable and a second cylinder 3b into which a second piston B<SB>2</SB>is fitted so as to be slidable, and opens a first delivery hole h<SB>1</SB>and a second delivery hole h<SB>2</SB>through a first flow path p<SB>1</SB>and a second flow path p<SB>2</SB>from respective cylinders, and a pressing member C simultaneously pressing the first piston and the second piston. The delivery instrument is constituted so that the second delivery hole is opened in a ring-like shape on the circumference of the first delivery hole, and the surrounding of the first liquid delivered from the first delivery hole is covered with the second liquid delivered from the second delivery hole. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a two-component dispenser.

  A two-liquid mixing container has been proposed in which two liquids are separately sealed in a container and the two liquids can be immediately mixed with the container body by a simple operation immediately before use. (See Patent Document 1)

  This two-component mixing container includes a pair of liquid cups, a pair of plungers, and a main body. In the liquid cup, the liquid sealing portion and the discharge portion are defined by a partition wall portion that is broken by a plunger. The main body is composed of a liquid cup insertion cylinder and a mixed liquid storage cylinder. The liquid cup insertion cylinder has one liquid cup inserted into one side from the discharge part side and the other liquid cup on the other side. It is inserted from the discharge portion side, one plunger is inserted into one liquid cup and the first liquid is sealed, and the other plunger is inserted into the other liquid cup and the second liquid is sealed. . In addition, a two-liquid mixing chamber that forms a space communicating with the upper opening is formed between the two liquid cups inserted. The fitting liquid storage cylinder protrudes above the both liquid mixing chambers of the liquid cup insertion cylinder and communicates with the opening.

The above two-liquid mixing container is a simple operation in which the plungers are simultaneously pressed toward the main body, and the partition portions of the liquid cups are broken by the protruding portions of the plungers. Since the first and second liquids enclosed in the enclosing part flow into the two-liquid mixing chamber of the liquid cup fitting cylinder of the main body at a stretch, the two liquids are immediately mixed in the two-liquid mixing chamber, In addition to being able to obtain a mixed liquid mixture, it is easy without pressing any one part that contains the liquid like a conventional two-component mixing container or shaking the container itself. It is excellent that the two liquids can be completely mixed.
JP 2006-36226 A

  As described above, the two-liquid mixing container described above has a configuration in which the two liquids are mixed and discharged in the container, and is not suitable in the case of the following storage liquid. For example, when one of the two liquids dislikes contact with air, or when the two liquids are medicines and the one liquid does not want to directly touch the affected area, mixing and discharging is preferable. There may not be.

  The present invention has been made in view of the above points, and can prevent the contact as much as possible when one of the liquids dislikes contact with air, and the drug does not want to directly touch the affected part with one of the liquids We propose a two-liquid dispenser that is suitable for the above. We also propose a two-component dispenser that has a simple structure and can be manufactured at low cost and can be applied to a disposable type.

  The two-liquid discharger of the present invention is a discharger for simultaneously discharging two liquids having relatively high viscosity, and the liquid is discharged in a form in which two liquids cover one liquid. The viscosity of the discharged liquid is not particularly specified as long as it has a viscosity that can maintain the shape retention in the discharged state. The two-component dispenser includes a container body, a first piston, a second piston, and a pressing member.

  The container body is formed of a synthetic resin or the like, and includes a first cylinder that stores the first liquid and a second cylinder that stores the second liquid. Each of the first and second cylinders may have a lower end opening provided in parallel, and may have the same diameter or different diameters as required. The first discharge hole and the second discharge hole are opened from the first and second cylinders through the first flow path and the second flow path, respectively.

  In the present invention, the second discharge hole is annularly opened around the first discharge hole. The shape of the first discharge hole is generally circular, but is not particularly limited, and the shape of the second discharge hole may be formed in an annular shape surrounding the periphery of the first discharge hole. In the present invention, the second liquid is discharged by covering the periphery of the first liquid with the above-described structure. However, in order to do this, not only the positional relationship between the first discharge hole and the second discharge hole, but also the volume of the first flow path from the first cylinder to the first discharge hole and the second cylinder to the first discharge hole. It is necessary to adjust the volume of the second flow path leading to the two discharge holes, and it is necessary to adjust the opening areas of the first discharge hole and the second discharge hole. Specifically, the volume of the first flow path and the volume of the second flow path may be made substantially the same, and the opening areas of the first discharge hole and the second discharge hole may be made the same. However, these errors in volume ratio or area ratio are naturally considered. These are based on the assumption that the first and second cylinders have the same diameter (when the cross-sectional area of each cylinder is the same), and when the first and second cylinders have different diameters. Is configured such that the liquid in the above-described layer form is discharged by adjusting the volume ratio between the first flow path and the second flow path and the opening area ratio between the first discharge holes and the second discharge holes in accordance with the diameter difference. In that case, for example, the diameter ratio between the first cylinder and the second cylinder and the volume ratio between the first flow path and the second flow path are made substantially equal, and the diameter ratio and the opening area ratio are made substantially equal.

  The container body is composed of two members, a main body and an auxiliary member, so that it is preferable as simple as possible and to satisfy the requirements. The main body can preferably adopt a form in which the first cylinder and the second cylinder are vertically suspended from the back surface of the top plate, and a discharge cylinder portion communicating with the first cylinder is erected. A configuration in which two flow paths are defined can be preferably employed.

  The first piston and the second piston are formed of an elastomer or a synthetic resin, and are slidably fitted to the first cylinder and the second cylinder, respectively. Sealed. Each piston may be configured to be housed in each cylinder, and the container body can be stably erected without attaching the pressing member. Moreover, the fitting means which detachably fits a press member is provided.

  The pressing member is for pressing the first piston and the second piston at the same time, and includes a first pressing rod and a second pressing rod, each having an upper end detachably fitted to the first piston and the second piston. A pressing member configured to stand from the substrate is provided.

The first means for solving the above-described problems is configured as follows. That is, the first cylinder 3a and a second piston B ₂ provided with a second cylinder 3b which has slidably fitted, first flow from each cylinder of the first piston B ₁ was slidably fitted A container body A having the first discharge hole h ₁ and the second discharge hole h ₂ opened through the path p ₁ and the second flow path p ₂ , and a pressure for simultaneously pressing the first piston B ₁ and the second piston B ₂ and a member C, and the second discharge hole h ₂ opens into an annular first discharge holes h ₁ around which the first liquid around discharged from the first discharge hole h ₁ discharged from the second discharge hole h ₂ The second liquid was coated.

The second means is configured as follows. That is, in the first means, the first discharge cylinder 7 that defines the first flow path p ₁ on the container body A on the top plate 2 in which the first cylinder 3a and the second cylinder 3b are suspended. a main body a ₁ erected and then fitted onto the main body a ₁ is constituted by an auxiliary member a ₂ defining said second flow path p _2, wherein the pressing member C, the first piston B ₁ and was the second first pushing rod 40a and the second pushing rod 40b piston B ₂ in which respectively detachably fitted an upper portion constituted by upright from the substrate 41.

The third means is configured as follows. That is, in the second means, the main body A ₁ erected the first discharge cylinder 7 with a gap from the support cylinder 5 in the support cylinder 5 erected on the top plate 2, and bored a second communication hole 9 which communicates with the second cylinder 3b on the top plate 2 in the support tube 5 made, the fitting cylinder auxiliary member a ₂ is, that a liquid tight manner is fitted in the support cylinder 5 the outer periphery A top wall 22 was extended from the upper end edge of 20, and a second discharge cylinder 23 having a lower end opened on the top wall 22 was erected on the upper outer periphery of the first discharge cylinder 7 with a gap.

  Since the two-liquid discharger of the present invention can discharge a liquid in which the first liquid is coated with the second liquid, for example, the first liquid is inconvenient to directly contact the affected part in a medicine or the like. There is a convenience that can be coated with the second liquid and discharged, and a first liquid that is not preferably brought into direct contact with air can be coated and discharged with the second liquid.

  Further, in the case of the second means, the number of members is small, and it can be manufactured at a low cost.

Further, in the case of the third means, there is an advantage that the liquid can be efficiently distributed to the annular portion of the second flow path p ₂ formed by the first discharge cylinder 7 and the second discharge cylinder 23.

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

1 to 4 show an example of a two-liquid discharger according to the present invention. In the figure, 1 denotes a two-liquid discharger. The two-liquid dispenser 1 includes a container body A, a first piston B ₁ , a second piston B _2, and a pressing member C.

The container body A is composed of a main body A ₁ and an auxiliary member A ₂ . The main body A ₁ has a pair of first cylinder 3 a and second cylinder 3 b suspended from the lower surface of the top plate 2. Each of the first and second cylinders 3a, 3b has the same diameter, opens at the lower end, and extends a rectangular flange 4 from the outer periphery of the lower end. In addition, a horizontally long elliptical cylindrical support cylinder 5 is erected at the center of the top plate 2, and locking protrusions 6 are provided on both sides of the outer periphery of the support cylinder 5. The first discharge cylinder 7 is erected at the end of the support cylinder 5 on the first cylinder 3a side, and the lower end thereof is communicated with the inside of the first cylinder 3a via the first through hole 8 provided in the top plate 2, and the upper end is The first discharge hole h ₁ is opened, and the inside is a first flow path p ₁ . Further, a second communication hole 9 communicating with the inside of the second cylinder 3b is formed at the end of the support cylinder 5 on the second cylinder 3b side.

The auxiliary member A ₂ is mounted by fitting the fitting cylinder 20 on the outer periphery of the support cylinder 5, and rides over the engaging protrusions 21 protruding from both sides of the inner periphery of the fitting cylinder 20. It is engaged to prevent it from coming out. Further, the top wall 22 extends from the upper end edge of the fitting cylinder 20 and a second discharge cylinder 23 having a lower end opened on the top wall 22 is erected with a gap on the upper outer periphery of the first discharge cylinder 7. ing. Further, a concave portion 24 is formed in which the central portion of the top wall 22 is recessed horizontally, and a seal cylinder 25 suspended from the back surface of the top wall 22 on the outer periphery of the concave portion 24 is closely fitted to the inner periphery of the support cylinder 5. Thus, liquid tightness is imparted to the fitting cylinder 20. Then, to form a second flow path p ₂ extending from the first communication hole 8 to the second ejection hole h ₂ is formed in the first discharge tube unit 1 and the second discharge tube unit 1. A sealing material 26 is provided on the upper surfaces of the first discharge cylinder 7 and the second discharge cylinder 23 so as to be peelable, and closes the first discharge hole h ₁ and the second discharge hole h ₂ .

The first piston B ₁ and the second piston B ₂ is intended it has it allowed slidably fitted in the first cylinder 3a and the second cylinder 3b, and is made of synthetic rubber. The first piston B ₁ is slidably fitted to the inner periphery of the first cylinder 3a, and has a sliding cylinder portion 30 whose upper and lower edges protrude outwardly in a taper shape from the peripheral portion of the top plate portion 31. In addition, a connecting tube 32 is integrally suspended from the center of the back surface of the top plate portion 31. The second piston B ₂ has exactly the same shape as the first piston B ₁ .

The pressing member C is provided with a first pressing rod 40a and a second pressing rod 40b that are detachably fitted to the first piston B ₁ and the second piston B ₂ from the base plate 41, respectively. . A reduced diameter portion 42 is formed on the outer periphery of each of the first pressing rod 40a and the second pressing rod 40b, and a connecting tube 32 of each piston is detachably fitted to the outer periphery of the reduced diameter portion 42. Then, after removing the sealing material 26 from the state shown in FIG. 3, if the pressing member C is pushed in, the first liquid in the first piston B ₁ is discharged from the first discharge hole h ₁ to the outside via the first flow path p ₁ . discharged, the liquid in the second cylinder 3b is discharged to the outside from the second discharge hole h ₂ through the second flow path p ₂ from the second communication hole 9. At that time, the annular second liquid discharged from the second discharge hole h ₂ is covered and discharged around the first liquid discharged from the first discharge hole h ₁ .

FIG. 5 shows another example. This example is basically the same as the example of FIG. 1 except that the diameter of the second cylinder 3b is smaller than that of the first cylinder 3a. The volume ratio between the passage p ₁ and the second passage p ₂ and the opening area ratio between the first discharge hole h ₁ and the second discharge hole h ₂ are configured in the same manner as the diameter ratio between the first cylinder 3a and the second cylinder 3b. Has been. The operation is the same as the example of FIG.

It is a disassembled perspective view of this invention 2 liquid discharger. Example 1 It is a perspective view of the state which removed the press member of the discharger for two liquids of the present invention. Example 1 It is a longitudinal cross-sectional view of this invention 2 liquid discharger. Example 1 It is a top view of the discharger for two liquids of the present invention. Example 1 It is a longitudinal cross-sectional view of this invention 2 liquid discharger. (Example 2)

Explanation of symbols

1 ... Two component ejection unit A ... container body (A ₁ ... body, A ₂ ... auxiliary member)
2 ... top plate, 3a ... first cylinder, 3b ... second cylinder, 4 ... flange, 5 ... support cylinder,
6 ... Locking ridge, 7 ... First discharge cylinder, 8 ... First communication hole, 9 ... Second communication hole, 20 ... Fitting cylinder, 21 ... Engagement protrusion, 22 ... Top wall, 23 ... First 2 discharge cylinders, 24 ... recessed part, 25 ... seal cylinder,
26 ... Sealing material, p ₁ ... First flow path, p ₂ ... Second flow path, h ₁ ... First discharge hole, h ₂ ... Second discharge hole, B ₁ ... First piston, B ₂ ... Second piston
30 ... Sliding cylinder, 31 ... Top plate, 32 ... Connection cylinder,
C ... Pressing member
40a: first pressing rod, 40b: second pressing rod, 41: substrate, 42: reduced diameter portion

Claims (3)

The first piston B ₁ with the first cylinder 3a and the second piston B ₂ that has slidably fitted comprises a second cylinder 3b which has slidably fitted a first flow path p ₁ from the respective cylinders And a container body A that opens the first discharge hole h ₁ and the second discharge hole h ₂ via the second flow path p ₂ , and a pressing member C that simultaneously presses the first piston B ₁ and the second piston B _2. the provided, the second discharge hole h ₂ is opened in a ring shape to the first discharge hole h ₁ around which the first liquid around discharged from the first discharge hole h ₁ discharged from the second discharge hole h ₂ A two-component dispenser characterized in that the two-component is covered. A main body A _{1 in} which a first discharge cylinder 7 defining the first flow path p ₁ is erected on a top plate 2 in which the first cylinder 3a and the second cylinder 3b are vertically suspended; and fitted on ₁ constituted by the auxiliary member a ₂ defining said second flow path p _2, the pressing member C, and the first piston B ₁ and each upper end to the second piston B ₂ The two-component dispenser according to claim 1, wherein the first pressing rod 40a and the second pressing rod 40b, which are detachably fitted, are constructed upright from the substrate 41. The main body A ₁ erected the first discharge cylinder 7 with a gap from the support cylinder 5 in the support cylinder 5 erected on the top plate 2, and the second cylinder on the top plate 2 in the support cylinder 5. The auxiliary member A ₂ is provided with a top wall 22 extending from the upper end edge of the fitting cylinder 20 that is liquid-tightly fitted to the outer periphery of the support cylinder 5. 3. The two-liquid discharger according to claim 2, wherein a second discharge cylinder 23 having a lower end opened on the top wall 22 is erected on the upper outer periphery of the first discharge cylinder 7 with a gap.

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