JP2007297092A - Two-liquid discharger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-liquid discharger that has a simple structure, can be manufactured at low cost, and is capable of discharging first and second liquids in two layers such that the first liquid covers the second liquid. <P>SOLUTION: The two-liquid discharger comprises a case A in which a first discharging hole h<SB>1</SB>and second discharging hole h<SB>2</SB>are open, via a first conduit p<SB>1</SB>and second conduit p<SB>2</SB>, in a first communication cylinder 22 and second communication cylinder 23 extending in the upper part of the inside. The two-liquid discharger also comprises a first cylinder B<SB>1</SB>and second cylinder B<SB>2</SB>, which fit fittable cylinders 31 into the first and second communication cylinders so as to be unfitted, and which have a first piston C<SB>1</SB>and second piston C<SB>2</SB>slidably fitted inside so as to be replaceable. The discharger also comprises a pressing member D, which presses the first and second pistons simultaneously. The second discharging hole is made in an annular shape around the first discharging hole so that the second liquid discharged from the second discharging hole covers the periphery of the first liquid discharged from the first discharging 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

  Since the two-liquid mixing container described above is a form in which two liquids are mixed and discharged in the container, it is not suitable for 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 that does not want to directly touch the affected part with one liquid A two-liquid discharger is proposed that is suitable for the above-described process and that can be easily replenished with two liquids. We also propose a two-component dispenser that has a simple structure and can be manufactured at low cost.

  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-liquid dispenser includes a container body, first and second cylinders, first and second pistons, and a pressing member.

  The case body is formed of a synthetic resin or the like, has a top cylindrical shape with an open lower end, and includes a first discharge hole and a second discharge hole at the top. Moreover, the 1st connection cylinder and the 2nd connection cylinder are suspended in the upper part inside, and each connection cylinder is connected to the 1st discharge hole and the 2nd discharge hole via the 1st flow path and the 2nd flow path, respectively. . Further, it is preferable that the case body is composed of two members, a case main body and an auxiliary member, because it is easy to assemble and is excellent in formability. The case body preferably has a form in which the lower end is opened on the top wall extending from the peripheral wall and the second discharge cylinder is erected, and the auxiliary member is more than the top plate fitted on the back surface of the case body top wall. The first communication cylinder and the second communication cylinder are suspended, and the first discharge cylinder that communicates with the first communication cylinder and the interior is erected with a gap in the inner periphery of the second discharge cylinder. The thing of the form which defined the two flow paths can be employ | adopted preferably.

  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 It is necessary to adjust the volume of the second flow path leading to the second discharge hole, and it is necessary to adjust the opening area ratio between the first discharge hole and the second discharge hole.

  Specifically, the volume of the first channel and the volume of the second channel may be made substantially the same. The opening area ratio between the first discharge hole and the second discharge hole may be 1: 1, that is, 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 hole and the second discharge hole in accordance with the diameter difference. In this 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 first cylinder and the second cylinder are made of synthetic resin, etc., and are detachably fitted into the case body. The first cylinder is liquid-tightly attached to and detached from the first connecting cylinder at the upper end. It fits in and can be removed in the case. Moreover, the 1st piston is slidably fitted inside and the 1st liquid is sealed. The second cylinder also has a fitting cylinder at the upper end that is detachably and liquid-tightly fitted into the second connecting cylinder and is detachably housed in the case body. Similarly, the second piston is slidably fitted inside. The second liquid is sealed together. Each of the first and second cylinders can be replaced when the stored liquid is used up. The first cylinder and the second cylinder may have the same diameter or different diameters, and may be selected according to the layer form of the discharge liquid. In the case of different diameters, it is necessary to consider the volume ratio of the first and second flow paths and the opening area ratio of the first and second discharge holes.

  Since different types of liquid are basically stored in the first cylinder and the second cylinder, it is preferable to provide a discriminating mechanism for discriminating both of them at the time of replacement. As an example of the discriminating mechanism, concave and convex engaging means for identifying the first cylinder and the second cylinder by engaging with each other is provided at the lower end of the first cylinder and the second cylinder and the lower end of the case body. For example, the first cylinder and the second cylinder have the same shape, and an engagement recess is formed in each of the specific positions of the flange protruding from the lower end edge, while the lower end of the case body corresponds to the engagement recess. An engagement protrusion is provided. Accordingly, the engagement recesses of the first cylinder and the engagement recesses of the second cylinder are different in position, and as a result, if the first cylinder is to be fitted at the position where the second cylinder is to be fitted, Since the joint recess and the engagement protrusion do not engage with each other, the fitting is impossible.

  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, it is good to provide the fitting means which detachably fits a press member.

  The pressing member is made of synthetic resin or the like, and is used for pressing the first piston and the second piston at the same time. For example, the first piston and the second piston are detachably fitted to the first piston and the second piston, respectively. The pressing rod and the second pressing rod are configured upright from the substrate.

The first means for solving the above-described problems is configured as follows. That is, the first discharge hole h ₁ and the second discharge hole h ₂ are respectively connected through the first flow path p ₁ and the second flow path p ₂ from the first communication cylinder 22 and the second communication cylinder 23 that are suspended from the inside. open the case body a was, together with fitting the upper end fitting pipe 31 in a removable and liquid-tightly to the first contact tube 22, a first liquid a first piston C ₁ allowed slidably fitted therein The upper end fitting cylinder 31 is detachably and liquid-tightly fitted to the first cylinder B _{1 which} is sealed and detachably accommodated in the case body A, and the second connecting cylinder 23, and the second piston is contained therein. C ₂ is slidably fitted to seal the second liquid, and the second cylinder B ₂ detachably stored in the case body A, the first piston C ₁ and the second piston C ₂ are simultaneously installed. and a pressing member D for pressing, the second discharge hole h ₂ opens into an annular first discharge holes h ₁ around the first liquid around discharged from the first discharge hole h ₁ second ejection Second liquid discharged from the hole h ₂ is composed as to cover.

The second means is configured as follows. That is, in the first means, the case body A has a case main body A _{1 in} which a lower discharge port 4 is erected by opening a lower end in a top wall 3 extending from the peripheral wall 2, and a case main body top. The first connecting cylinder 22 and the second connecting cylinder 23 are suspended from a top plate 21 fitted to the back surface of the wall 3, and the first discharge cylinder 26 communicating with the first connecting cylinder 22 is connected to the second discharge cylinder 4. The auxiliary member A ₂ is formed by standing up with a gap in the inner periphery and defining the first flow path p ₁ and the second flow path p ₂ .

  The third means is configured as follows. That is, in the second means, a guide groove 62 is formed along the outer periphery of the first discharge cylinder 26 of the top plate 21.

The fourth means is configured as follows. That is, in any one of the first to third means, the lower ends of the first cylinder B ₁ and the second cylinder B _{2 and} the lower end of the case body A are engaged with each other. A discriminating mechanism for identifying the first cylinder B ₁ and the second cylinder B ₂ is provided.

The fifth means is configured as follows. That is, in any one of the first to fourth means, the case body A has the flange 5 extending outward from the lower end of the outer periphery of the peripheral wall 2 and provided on the flange 5. The finger hooking protrusion 33 protruding from the first cylinder B ₁ and the second cylinder B ₂ was brought into the notch 9 so as to be able to be pushed down.

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. In addition, after using the liquid, it can be used many times just by replacing the first cylinder B ₁ and the second cylinder B ₂ , the first piston C ₁ and the second piston C ₂ , which is economical, Exchange is also easy.

In addition, the case body A has a top body 3 that extends from the peripheral wall 2, a case main body A ₁ that has a lower end opened and a second discharge cylinder 4 erected, and a top plate that is fitted to the back surface of the case main body top wall 3. The first connecting cylinder 22 and the second connecting cylinder 23 are suspended from 21 and a first discharge cylinder 26 communicating with the first connecting cylinder 22 is provided upright with a gap in the inner periphery of the second discharge cylinder 4. In the case where the auxiliary member A ₂ is formed by defining the first flow path p ₁ and the second flow path p ₂ , the number of members can be reduced as much as possible, and it can be precisely formed at low cost, and the assembly thereof Has the advantage of being easy to do.

Further, when the guide concave groove 62 is formed along the outer periphery of the first discharge cylinder 26 of the top plate 21, the annular shape of the second flow path p ₂ formed by the first discharge cylinder 26 and the second discharge cylinder 4. There is an advantage that the liquid can be efficiently distributed to the part.

In addition, a determination mechanism for identifying the first cylinder B ₁ and the second cylinder B ₂ by engaging with each of a lower end portion of the first cylinder B ₁ and the second cylinder B _{2 and} a lower end portion of the case body A, respectively. If provided, each cylinder to be replaced can be definitely mounted.

Further, the case body A has a flange 5 extending outward from the lower end of the outer periphery of the peripheral wall 2, and protruded from the first cylinder B ₁ and the second cylinder B _{2 in} a notch 9 provided in the flange 5. When the finger hooking projection 33 is made to be able to be pushed down, it is very easy to remove each cylinder. As a result, there is an advantage that each cylinder and each piston can be easily replaced.

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

1 to 6 show an example of a two-liquid discharger according to the present invention. The two-liquid dispenser 1 includes a case body A, a first cylinder B ₁ , a second cylinder B ₂ , a first piston C ₁ , a second piston C _2, and a pressing member D. .

Case body A includes a case main body A _1, is constituted by the auxiliary member A _2. The case main body A ₁ has a top wall 3 extending from the upper end edge of the peripheral wall 2 having a horizontally long elliptical shape, and a central portion of the top wall 3 is formed as a raised portion 3a. Two discharge cylinders 4 are erected. Further, a flange 5 having a circular outline is projected outward from the lower end edge of the peripheral wall 2, and the hanging wall 6 is suspended from the peripheral edge of the flange 5. A pair of first engagement protrusions 7 and 7 and a pair of second engagement protrusions 8 and 8 that form a part of a discrimination mechanism described in detail later are provided at predetermined positions on the lower surface of the flange 5. Further, a pair of notches 9 and 9 are provided on both sides of the flange 5 and the hanging wall 6.

The auxiliary member A ₂ has a horizontally long elliptical top plate 21 extending from the upper end of the peripheral wall portion 20 fitted to the upper end portion of the peripheral wall ₂ of the case main body A ₁ and is fitted to the back surface of the case main body top wall 3. A first connecting cylinder 22 and a second connecting cylinder 23 are suspended from the rear surface. The top plate 21 on the first connecting cylinder 22 is provided with a first series of through holes 24, and a first discharge cylinder 26 is provided at the center of the top plate 21 via a transition wall portion 25 erected from the periphery of the first series of through holes 24. , The first discharge cylinder 26 is positioned with a gap in the inner periphery of the second discharge cylinder 4 of the case body A ₁ , the first discharge hole h ₁ is opened at the upper end, and the first series of through holes 24 A first flow path p ₁ that further reaches the first discharge hole h ₁ is defined. Further, the top plate 21 on the second connecting cylinder 23 is provided with a second communication hole 27, and is formed from the second communication hole 27 to a tip portion between the first discharge cylinder 26 and the second discharge cylinder 4. A second flow path p ₂ reaching the second discharge hole h ₂ is defined.

The first cylinder B ₁ represents a torso 30 of the closed top cylinder having an open lower end, it erected a fitting cylinder 31 which communicates with the barrel 30 to the top of the barrel 30, also from the lower peripheral edge Has a flange 32 projecting outward. The flange portion 32 is formed so that the surface facing the second cylinder B ₂ is formed in a straight line and is in perfect contact with the surface facing the flange 32 of the second cylinder B _2. On the opposite side, a finger hooking projection 33 is provided so as to face the notch portion of the case body A. Further, a pair of first engaging recesses 34, 34 that engage with the first engaging protrusions 7 are provided at predetermined positions of the flange portion 32. Then, the fitting cylinder 31 is fitted into the first connecting cylinder 22 in a liquid-tight manner, the first engaging recesses 34 are fitted into the first engaging protrusions 7, and the finger hooking protrusions 33 are further fitted into the notches 9. It is attached to the case body A. The second cylinder B _{2 is} also formed symmetrically with the first cylinder B _1. Other differences are the pair of second engagement recesses 35 corresponding to the second engagement protrusions 8, 8. The only difference is that 35 is recessed. Therefore, even if the first cylinder B ₁ is fitted to the position where the second cylinder B ₂ is to be mounted, the first engaging recess 34 is not engaged with the second engaging protrusion 8 and mounting is impossible. The same applies when the second cylinder B ₂ is fitted to the position where the first cylinder B ₁ is to be mounted.

The first piston C ₁ and the second piston C ₂ is intended that each allowed slidably fitted in the first cylinder B ₁ and the second cylinder B _2, and is made of synthetic rubber. The first piston C ₁ is slidably fitted to the inner periphery of the first cylinder B ₁ and extends from the peripheral edge portion of the top plate portion 41 with a sliding cylinder portion 40 whose upper and lower edges protrude outwardly in a tapered shape. In addition, a fitting recess 42 is provided on the back surface of the top plate portion 41. The second piston C ₂ has the same shape as the first piston.

Pressing member D has a first piston C ₁ and the first pushing rod 50a and the second pushing rod 50b which detachably fitted a second piston C ₂ each upper portion and each erected from the substrate 51. The first pushing rod 50a and the second pushing rod 50b of a plate-like forming the cross sectional cross-shaped, detachably fitted each tip the fitting recess 42 of the first piston C ₁ and the second piston C ₂ is doing. Then, if the pressing member D is pushed in from the state of FIG. 1, the first liquid in the first piston C ₁ is discharged to the outside from the first discharge hole h ₁ via the first flow path p ₁ , and the second cylinder The liquid in B ₂ is discharged from the second communication hole 27 to the outside through the second flow path p ₂ and from the second discharge hole h ₂ . 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 .

7 and 8 show another example, the present embodiment In the example of FIG. 1, is obtained by difference the form auxiliary member A _2. In this example, the auxiliary member A _2, forms a first auxiliary member A _2a and the second auxiliary member A _2b, the first auxiliary member A _2a is extended a first top plate 21a than the peripheral wall 20 the upper edge At the same time, the first through hole 60 and the second through hole 61 are formed in the first top plate 21a, and the second connecting cylinder 23 is provided downward from the peripheral edge of the second through hole 61. Further, the second auxiliary member A _2b has a second top plate 21b having the same outer diameter as the first top plate 21a, and the first communication cylinder 22 is suspended downward from the back surface of the second top plate 21b, and the first connection is made. A first discharge cylinder 26 is erected at the center of the second top plate 21b via a transition wall 25 standing upright from the upper end edge of the cylinder 22, and is guided to a portion other than the transition wall 25 by the outer periphery of the first discharge cylinder 26. A concave groove 62 is provided. Further, a fitting projection 63 is provided so as to be fitted to the upper end portion of the second connecting cylinder 23 from the back surface of the second top plate 21b, and the fitting communication 63 communicates with a part of the guide groove 62. A hole 27 is formed.

Then, the first auxiliary member A _2a and the second auxiliary member A _2b are fitted to form the auxiliary member A ₂ , and the auxiliary member A ₂ is attached to the upper end of the case main body A ₁ as in the example of FIG. It is fitted and fixed. In this case is smoothly introduced into the liquid is around the first discharge tube 26 via the guide groove 62 from the second cylinder B _2, it is pulled the second liquid more uniformly in the second ejection hole h ₂ It is configured as introduced.

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 bottom view of the discharger for two liquids of the present invention. Example 1 It is a disassembled perspective view of the case body in the discharger for two liquids of this invention. Example 1 It is a perspective view of a cylinder and a piston of the discharger for two liquids of the present invention. Example 1 It is a perspective view of 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 2) It is a disassembled perspective view of the case body in the discharger for two liquids of this invention. (Example 2)

Explanation of symbols

1 ... Two-component dispenser A ... Case body
A ₁ ... Case body 2 ... Peripheral wall, 3 ... Top wall, 3a ... Raised portion, 4 ... Second discharge cylinder, 5 ... Flange, 6 ... Vertical wall,
7 ... 1st engagement protrusion, 8 ... 2nd engagement protrusion, 9 ... Notch part,
A ₂ ... auxiliary member (A _2a ... first auxiliary member, A _2b ... second auxiliary member)
20 ... peripheral wall part, 21 ... top plate, 21a ... first top plate, 21b ... second top plate, 22 ... first connecting cylinder,
23 ... Second connecting cylinder, 24 ... First through hole, 25 ... Transition wall, 26 ... First discharge cylinder,
27 ... second communication hole, p ₁ ... first flow path, p ₂ ... second flow path, h ₁ ... first discharge hole,
h2 ... second discharge hole, 60 ... first through hole, 61 ... second through hole, 62 ... guide groove, 63 ... fitting projection, B ₁ ... first cylinder, B ₂ ... second cylinder
30 ... trunk part, 31 ... fitting part, 32 ... flange part, 33 ... finger hook part, 34 ... first engagement recess,
35 ... second engaging recess,
C ₁ … first piston, C ₂ … second piston,
40 ... Sliding cylinder, 41 ... Top plate, 42 ... Fitting recess,
D ... Pressing member
50a… first pressing rod, 50b… second pressing rod, 51… substrate

Claims (5)

A first discharge hole h ₁ and a second discharge hole h ₂ are opened through a first flow path p ₁ and a second flow path p ₂ respectively from a first connection cylinder 22 and a second connection cylinder 23 that are suspended in the upper part inside. The upper end fitting cylinder 31 is detachably and liquid-tightly fitted to the case body A and the first connecting cylinder 22, and the first piston C ₁ is slidably fitted therein to seal the first liquid. In addition, the first cylinder B ₁ detachably accommodated in the case body A and the upper end fitting cylinder 31 are detachably and fluid-tightly fitted to the second connecting cylinder 23, and the second piston C ₂ is contained therein. Are slidably fitted to seal the second liquid, and the second cylinder B ₂ detachably accommodated in the case body A, the first piston C ₁ and the second piston C ₂ are simultaneously pressed. and a pressing member D, the second discharge holes h ₂ was opening annularly first discharge hole h ₁ surrounding the first discharge hole of the first liquid around ejected from h ₁ second ejection hole h ₂ Ri two liquid ejection device in which the second liquid is characterized by being composed as to cover ejected. The case body A is made up of a case body A ₁ having a lower end opened to a top wall 3 extending from the peripheral wall 2 and a second discharge cylinder 4 standing, and a top plate 21 fitted to the back surface of the case body top wall 3. The first connecting cylinder 22 and the second connecting cylinder 23 are vertically suspended, and a first discharge cylinder 26 communicating with the inside of the first connecting cylinder 22 is erected with a gap in the inner periphery of the second discharge cylinder 4. the first flow path p ₁ and two liquid ejection device of claim 1, wherein comprising constituting a second flow path p ₂ comprising defining an auxiliary member a ₂ Prefecture.   The two-liquid discharger according to claim 2, wherein a guide groove (62) is formed along the outer periphery of the first discharge cylinder (26) of the top plate (21). A discriminating mechanism for identifying the first cylinder B ₁ and the second cylinder B ₂ by engaging with each other at the lower end of the first cylinder B ₁ and the second cylinder B _{2 and} the lower end of the case body A is provided. The discharger for two liquids according to any one of claims 1 to 3. The case body A has a flange 5 extending outwardly from the lower end of the outer periphery of the peripheral wall 2, and a finger hooking protrusion protruding from a first cylinder B ₁ and a second cylinder B _{2 in} a notch 9 provided in the flange 5. The discharger for two liquids according to any one of claims 1 to 4, wherein 33 is pressed down.

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