JP4925201B2 - Dripping container - Google Patents

Description

  The present invention relates to a dripping container.

  In the case where the liquid is dropped and used, conventionally, a dropper bottle in which a dropper is detachably attached to the mouth of the container is used. Such a dropper bottle is configured, for example, such that a dropper cap is detachably attached to a container main body that stores a liquid, and an overcap is detachably attached so as to cover it. The dropper cap portion is generally in a form in which a rubber portion that defines a sealed space is attached to the upper end of a cylindrical dropper body.

  Such a dropper bottle, for example, discharges the air in the cavity inside the rubber part by pressing the rubber part of the dropper cap part removed by the user from the bottle, and then discharges the air in the dropper body. The liquid is sucked up by the elastic restoring force of the rubber part by inserting the dropper body into the liquid and releasing the pressure of the rubber part. Next, the liquid sucked up by pressing the rubber part against a predetermined discharge site is dropped.

  In these dropper bottles, when the liquid is dropped, the handling of the rubber part may be inappropriate and the size of the droplet may become unstable. Therefore, a dropper bottle that should cope with such inconvenience has also been proposed. (For example, see Patent Document 1)

The dropper bottle is a dropper bottle having a container body capable of containing a liquid and a dropper cap part having a dropper function capable of sealing and detaching the container body, and the dropper cap part is formed by the dropper cap part. A perforated cap with a communication hole that connects the inside and the outside when the bottle is sealed, and the outside when the dropper bottle is sealed by the dropper cap. A dropper rubber portion having a cavity communicating with the dropper main body mounting hole provided in the communication hole mounting base in the operation portion, and a main body mounting hole of the dropper rubber portion. Equipped with a cylindrical dropper body that is equipped with a communication hole mounting base and is made of a transparent material that narrows toward the tip. Relative to the distal end to the body portion side, are denoted by the number of drops corresponding graduations and numerals corresponding to the number of drops of liquid of interest to be content dropper bottle.
Japanese Patent Laying-Open No. 2005-187028

  The above-mentioned dropper bottle is an excellent one that makes it easy to understand the exact intake even by an unfamiliar person, but it can be said that in general dropper bottles, dust etc. may invade from the open bottle mouth when the dropper cap part is removed from the bottle Moreover, the capacity | capacitance of a dropper cap part is small, and the operation of replenishing each time is required.

  The present invention has been made in view of the above-described points, and can perform an appropriate amount of dripping with a simple operation upon dripping of the liquid, and there is no possibility of entry of dust into the stored liquid, and storage of the liquid. We propose a dripping container that is large and does not require refilling.

  The dripping container of the present invention includes a container body and a pressurizing mechanism.

  The container body is made of synthetic resin, glass or the like, has a cylindrical shape with an opening at one end, and a pressure mechanism is attached to the opening at the other end. The diameter of the dropping port may be a size corresponding to the dropping of the liquid, and may be appropriately selected according to physical properties such as the viscosity of the dropping liquid.

  The pressurizing mechanism is a mechanism for introducing pressurized air into the sealed space in the container body, thereby pressurizing the liquid surface and dropping the liquid from the dropping port, and includes a cylinder, a push button with a piston, an exhaust valve, And an outside air introduction mechanism.

  When the pressurizing mechanism is formed as a form of a single lid as a whole and is configured to be installed by closing the other end opening of the container body, handling becomes convenient. As a preferable form in that case, it is preferable that a cylinder and an exhaust valve are fixed to a mounting cylinder member fitted to the container body, and a push button with a piston is movably mounted on the cylinder.

  More specifically, a locking means such as screwing or over-crossing engagement of the ridges is adopted by fitting the half (not necessarily half) to the opening edge side end of the outer periphery of the container body. The other half is projected outward, and a cylinder and exhaust valve are attached to that part.

  The exhaust valve is opened when the push button is pushed in, and is provided with a structure for delivering the pressurized air in the cylinder pressurized by the piston into the container body. In this case, a configuration in which a valve body formed of a flexible and elastic material such as an elastomer is configured to open by air pressure is employed. For example, a cylindrical valve body portion formed of a flexible and elastic material in which a front end edge is airtightly fitted to the outer periphery of the annular valve seat and a sealed space between the annular valve seat and the inside of the cylinder is communicated. And an exhaust valve is formed.

  Moreover, you may employ | adopt the structure provided with the structure which forcibly opens a valve body at the time of pushing in of a pushbutton with the press body which protruded from the pushbutton. In this case, instead of the valve body formed of the flexible and elastic material described above, a valve body formed of a general synthetic resin used for this type of container such as a polyolefin resin is used, and protruded from the push button. When the push button is pushed in, the pressing body provided is inserted between the annular valve seat and the tubular valve body portion to open and open the tubular valve body portion.

  The pressurizing mechanism in the present invention includes an outside air introduction mechanism that introduces outside air into the cylinder that has been decompressed when the push button is restored. As the outside air introduction mechanism, various forms can be adopted as long as the above requirements are satisfied.For example, an outside air introduction mechanism having a check valve structure that communicates unilaterally from the outside to the inside is provided at a part such as a push button or a piston that communicates with the inside of the cylinder. However, a configuration in which an annular groove is provided in the cylinder is preferable because the structure is simple. In this case, the concave groove is provided around the cylinder inner surface at least below the cylinder fitting portion of the piston.

The first means is configured as follows. That is, a cylindrical container body A having an opening 4 at one end, and a pressurizing mechanism C provided by closing the other end of the container body A, the pressurizing mechanism C includes a cylinder 34, A piston C ₅ that slides in the cylinder 34 is provided so as to be pushed against the container body A in an outwardly biased state. The push button C ₄ is opened when the push button C ₄ is pushed, and the piston C ₅ is opened. the exhaust valve for feeding a pressurized air in the cylinder 34 in the container body a, and a air introduction mechanism for introducing outside air into vacuum the cylinder 34 when the push button C ₄ is restored, the exhaust valve An annular valve seat 36 connected to the cylinder 34 and a flexible fitting in which the tip edge is airtightly fitted to the outer periphery of the annular valve seat 36 and the sealed space between the annular valve seat 36 and the inside of the cylinder 34 is connected. And a cylindrical valve body portion 42 formed of a material having high elasticity .

The second means is configured as follows. That is, at the first unit, the exhaust valve, and the annular valve seat 36, and the cylindrical valve body 42 made of synthetic resin, as well as projecting from the push button C _4, pushing the push button C ₄ The pressure valve 65 is sometimes inserted between the annular valve seat 36 and the tubular valve body portion 42 to open and widen the tubular valve body portion 42.

The fourth means is configured as follows. That is, the first means to at any of the means of the third means, as the outside air introduction mechanism, the annular groove 35 is provided on at least below the cylinder 34 inner surface position than the fitting portion of the piston C ₅ Configured.

  The dripping container according to the present invention can drop an appropriate amount by a simple operation when dropping the liquid, and there is no risk of entering dust or the like into the stored liquid. In addition, the amount of liquid stored is large, and it is convenient that the liquid can be continuously dropped until the stored liquid runs out.

  In addition, an annular valve seat 36 connected to the cylinder 34 is fitted to the outer periphery of the annular valve seat 36 in an airtight manner, and a sealed space between the annular valve seat 36 is connected to the inside of the cylinder 34 and attached. When the exhaust valve is configured with the cylindrical valve body portion 42 formed of a flexible and elastic material, the exhaust valve can have sufficient airtightness, and the structure is simple and excellent in durability. It will be a thing.

An annular valve seat 36 connected to the cylinder 34 and a synthetic resin which is fitted with the tip edge of the annular valve seat 36 in an airtight manner and the space between the annular valve seat 36 and the inside of the cylinder 34 communicated. press the tubular valve body 42, while projecting from the push button C _4, a cylindrical valve body portion 42 is inserted between the annular valve seat 36 and the cylindrical valve body portion 42 during depression of the push button C ₄ When the exhaust valve is configured with the pressing body 65 that opens and opens, the tubular valve body portion 42 is reliably opened, so that inconveniences such as insufficient supply of pressurized air can be reliably prevented. .

Further, integrally as the outside air introduction mechanism, when configured an annular groove 35 at least below the cylinder 34 inner surface position than the fitting portion of the piston C ₅ provided, the structure is simple, also manufactured at the cylinder production Therefore, it can be easily formed.

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

  1 to 3 show an example of a dropping container 1 of the present invention. The dropping container 1 includes a container body A, a cap B, and a pressurizing mechanism C. FIG.

  The container body A has a cylindrical shape, and a cylindrical dripping port 4 is provided in the central portion of the closing wall 3 that closes one end of the cylindrical wall 2. Further, the outer periphery of the end portion of the cylindrical wall 2 on the side of the blocking wall 3 is formed in the one small outer diameter portion 5, and a screw thread is provided therearound. Further, the outer periphery of the other end portion of the cylindrical wall 2 is formed in the two small outer diameter portions 6, and locking protrusions 7 and locking ribs 8 are provided therearound. A large number of locking ribs 8 are provided at regular intervals in the circumferential direction.

  The cap B has a top-bottomed cylindrical shape with a top wall 11 extending from the top edge of the peripheral wall 10, a bar plug 12 on the center back surface of the top wall 11, a seal cylinder 13 at a predetermined position on the outer periphery of the bar plug 12, and Locking cylinders 14 project from the outer peripheral predetermined positions. Then, a screw provided around the inner periphery of the peripheral wall 10 is screwed into the screw of the container body A, and the peripheral wall 10 is screwed into the one small outer diameter portion 5 to be detachably attached to the container body A. . At this time, the dropping port 4 is closed by the rod plug 12, the sealing tube 13 is fitted to the outer periphery of the tube wall of the dropping port 4, and the lower end of the locking tube 14 is in contact with and locked to the surface of the closing wall 3. Let

Pressurizing mechanism C includes a hollow mounting member C _1, a cylinder member C _2, a valve member C _3, a push button C _4, the piston C _5, and a coil spring s.

The mounting cylinder member C ₁ has an inner peripheral surface having a first peripheral surface portion 20 at the lower end, a second peripheral surface portion 22 having a diameter increased above the first peripheral surface portion 20 via a first step portion 21, and a second peripheral surface. It is composed of a third peripheral surface portion 24 whose diameter is increased via the second step portion 23 above the surface portion 22 and a fourth peripheral surface portion 26 whose diameter is increased via the third step portion 25 above the third peripheral wall portion. A pair of semi-elliptical cutout windows 27 are formed in the first peripheral surface portion 20 portion. Further, an engagement protrusion 28 is provided at a predetermined position on the inner periphery of the fourth peripheral surface portion 26, and a number of engagement ribs 29 are provided at regular intervals in the circumferential direction. It is configured to be fitted to the outer periphery of the two small outer diameter portions 6 on the opening end side of A and to engage and disengage the engaging ridge 28 over the locking ridge 7 to prevent the protrusion. Each engagement rib 29 is configured to engage with each locking rib 8 to prevent mutual rotation.

The cylinder member C ₂ is mounted on the mounting cylinder member C ₁ by fitting the peripheral edge portion of the mounting plate portion 30 onto the second step portion 23. The mounting plate portion 30 has a donut plate shape in which the peripheral portion is depressed downwardly with the third peripheral surface portion 24 through the vertical wall portion 30a, and a window hole formed in the center portion. A valve body support cylinder 31 whose upper end is closed is erected above the periphery. A plurality of ventilation windows 32 are formed in the base end portion of the valve body support cylinder 31 in the circumferential direction. Further, a fitting cylinder portion 33 for fitting the coil spring s is provided from the lower surface of the mounting plate portion 30 around the window hole, and a cylinder 34 is vertically suspended from the outer position thereof. An annular groove 35 that constitutes an outside air introduction mechanism is provided at a predetermined position on the inner periphery of the cylinder 34.

The valve member C ₃ is formed of a flexible and elastic material such as an elastomer, and a peripheral fitting tube portion 40 is provided between the third peripheral surface portion 24 and the vertical wall portion 30a of the mounting plate portion 30. , The dove plate-shaped substrate portion 41 is extended on the mounting plate portion 30 on the inner side from the upper end edge of the fitting cylinder portion 40 by preventing the slippage by the overhanging engagement between the protrusions and fitting and clamping. A cylindrical valve body portion 42 is provided above the inner peripheral edge of the portion 41 so that the upper end portion is tapered and the upper end edge is in close contact with the annular valve seat 36 on the outer periphery of the valve body support tube 31. The annular valve seat 36 and the tubular valve body 42 constitute an exhaust valve. In addition, the seal cylinder 44 is erected upward from the peripheral edge of the substrate 41 and is configured to be closely fitted to the inner periphery of the opening of the container body A.

The push button C ₄ prevents the pull-out by engaging the engagement protrusion 51 projecting from the outer peripheral upper end edge of the peripheral wall 50 fitted to the inner periphery of the first peripheral surface portion 20 with the first step portion 21. A fitting cylinder 53 that is fitted to the mounting cylinder member C ₁ and that fits the piston C ₅ is provided upright from the upper surface of the pressing plate 52 that extends from the lower end edge of the peripheral wall 50.

The piston C ₅ has an upward skirt-like sliding portion 62 extending from the upper end edge of the bottomed cylindrical mounting tube portion 60 fitted and fixed in the fitting tube 53 of the push button C ₄ through the flange 61, The upper end edge of the moving part 62 is fitted to the cylinder 34 so as to be liquid-tightly slidable.

The coil spring s is fitted between the lower end of the mounting plate 30 and the upper surface of the flange 61 of the piston C ₅ so that the upper end of the coil spring s is fitted to the outer periphery of the fitting cylinder portion 33 and constantly urges the push button C ₄ outward. ing.

When the dripping container 1 configured as described above is used, if the cap B is removed and the push button C ₄ is pushed in with the dripping port 4 facing downward as shown in FIG. 2, the piston C ₅ is lowered. When the cylinder 34 and the outside communicate with each other when it reaches the concave groove 35 at one end, the inside of the cylinder 34 is pressurized and the pressurized air pushes the cylindrical valve body 42 open and opens inside the container body A. The liquid introduced into the upper part and pressurized thereby is dropped from the dropping port 4.

When the pressing of the push button C ₄ is released, the piston C ₅ and the push button C ₄ are lifted by the action of the coil spring s, and the negative pressure is generated in the cylinder 34 when the peripheral edge of the piston C ₅ hits the concave groove 35. Outside air is introduced into the groove 35 through the groove 35, and the negative pressure is eliminated. If necessary, the operation of pushing the push button C ₄ again can be repeated to drop the liquid each time.

  After use, the cap B can be fitted and stored, for example, in the standing state of FIG.

FIG. 4 shows another example. In the example of FIG. 1, the cylinder member C ₂ is formed by lowering the top plate 31a of the valve body supporting cylinder 31 to the position of the lower ventilation window 32, and FIG. instead of examples of piston C ₅ of the above the peripheral edge in the flange 61, is erected a volume reduction cylinder 63 to reduce the volume of the cylinder 34, also, the hollow mounting portion 60 has been removed is the bottom plate portion. This is the same as the other example of FIG.

FIG. 5 shows still another example. In the example of FIG. 1, the valve body support cylinder 31 is connected to the intermediate portion by a rod-shaped portion 37 having a small outer diameter, and the valve member C ₃ is usually used. Are formed with a relatively hard synthetic resin, and a plurality of protrusions 43 for pressing are provided on the inner surface in the circumferential direction. The piston C ₅ has a flange 61 extending outward from the upper end of the mounting cylinder portion 60 at the lower end opening fitted to the inner periphery of the fitting cylinder 53 of the push button C ₄ , and has a skirt shape upward from the outer peripheral edge of the flange 61. The sliding portion 62 extends, and a cylindrical base 64 having a top opening with a lower end opening is erected above the inner peripheral edge of the flange 61, and the upper plate extends from the upper peripheral edge of the base 64 through the ventilation window 32. -Shaped pressing body 65 is erected. This is the same as the other example of FIG.

In this case, by pressing the push button C ₄ with the dripping port 4 facing downward, the respective pressing plates 52 are lowered, pressing the pressed protrusions 43 outward, and the valve member C ₃ . The tubular valve body portion 42 is pushed outward from the valve body support cylinder 31 to introduce pressurized air into the upper portion of the container body A, and the liquid is similarly dropped from the dropping port 4. Further, if releasing the pressure of push button C _4, it returns to the original state.

It is a half sectional view showing a container for dropping. Example 1 It is a longitudinal cross-sectional view which shows the use condition of the container for dripping. Example 1 It is a principal part expanded sectional view of the container for dripping. Example 1 It is a principal part expanded sectional view of the container for dripping. (Example 2) It is a principal part expanded sectional view of the container for dripping. (Example 3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container for dripping A ... Container body 2 ... Cylindrical wall, 3 ... Blocking wall, 4 ... Dropping port, 5 ... 1st small outer diameter part, 6 ... 2nd small outer diameter part,
7 ... locking protrusion, 8 ... locking rib B ... cap
10 ... peripheral wall, 11 ... top wall, 12 ... stick plug, 13 ... seal cylinder, 14 ... locking cylinder C ... pressure mechanism
C ₁ … Installation cylinder member
20 ... 1st peripheral surface part, 21 ... 1st step part, 22 ... 2nd peripheral surface part, 23 ... 2nd peripheral surface part,
24 ... 3rd peripheral surface part, 25 ... 3rd step part, 26 ... 4th peripheral surface part, 27 ... notch part, 28 ... engagement protrusion, 29 ... engagement rib
C ₂ ... Cylinder member
30 ... Mounting plate part, 30a ... Cone wall part, 31 ... Valve support cylinder, 31a ... Top plate, 32 ... Ventilation window,
33 ... Fitting cylinder, 34 ... Cylinder, 35 ... Ditch, 36 ... Ring valve seat, 37 ... Bar
C ₃ ... Valve member
40 ... fitting cylinder part, 41 ... base plate part, 42 ... cylindrical valve body part, 43 ... ridge for pressing,
44… Seal tube
C ₄ ... push button
50 ... peripheral wall, 51 ... engaging protrusion, 52 ... pressing plate, 53 ... fitting cylinder
C ₅ … Piston
60 ... Mounting cylinder, 61 ... Flange, 62 ... Sliding part, 63 ... Volume reduction cylinder, 64 ... Pedestal, 65 ... Pressing body s ... Coil spring

Claims (3)

It provided one end to the dropping inlet (4) and having a cylinder of the container body and (A), a container body (A) closed to provided the pressurizing mechanism and the other end of the (C), a pressure mechanism ( C) includes a cylinder (34), a cylinder (34) in the push button which is provided to be pushed by the outside biased state with respect to the piston sliding (C ₅₎ projecting the the container body (a) and ( C ₄ ) and the push button ( C ₄ ) are opened when the push button ( C ₄ ) is pushed in, the exhaust valve that feeds the pressurized air in the cylinder ( 34 ) into the container body ( A ) by the piston ( C ₅ ), and the push button ( C ₄ ) An outside air introduction mechanism for introducing outside air into the cylinder ( 34 ) whose pressure has been reduced when the engine is restored, an annular valve seat (36) connected to the cylinder (34), and an annular valve seat (36) The tip edge is tightly fitted to the outer periphery, and the sealed space between the annular valve seat (36) is connected to the cylinder (34) and mounted. In dropping container, characterized by being configured des cylindrical valve body portion formed of a material rich in elasticity and (42). The exhaust valve includes the annular valve seat (36), the cylindrical valve body (42) made of synthetic resin, and a push button (C _Four ) And push button (C _Four ) Is inserted between the annular valve seat (36) and the tubular valve body part (42) when it is pushed in, and is configured by a pressing body (65) that opens and opens the tubular valve body part (42). The dripping container according to claim 1. Piston (C _Five The dripping container according to claim 1, wherein an annular groove (35) is provided at an inner surface position of the cylinder (34) at least below the fitting portion.

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