JP6676473B2 - Measuring dropper container - Google Patents

Description

  The present invention relates to a measuring dropper container, particularly to a measuring dropper container usable for a highly viscous liquid (such as a chemical solution).

As a conventional measuring dropper container, a container is known in which a dropper portion is attached to the mouth and neck of the container body, and a certain amount of liquid enters the dropper when the dropper is removed from the mouth and neck. (Patent Document 1).
The dropper part is
An operating member that erects the cylinder cylinder from the fitting cylinder that is screwed to the mouth and neck of the container via an inward flange, and that raises the outer cylinder above the cylinder cylinder from the outer surface of the fitting cylinder. When,
A dropper tube which is supported by the operation member so as to be able to move up and down, and is hung down into the body of the container body;
A first piston attached to an upper end of the dropper tube and in contact with a lower portion of the cylinder tube;
A sealing plate having a second piston in contact with an upper portion of the cylinder cylinder portion around the periphery thereof, and closing an upper portion of a cylinder hole of the cylinder cylinder portion;
A push button member mounted so as to be able to ascend and descend into the upper part of the outer cylinder and formed so as to be able to push down the sealing plate, and a spring is interposed between the sealing plate and the first piston portion. It becomes.

JP 2015-196503

The measuring dropper container can appropriately discharge even a liquid that is difficult to discharge in another type of discharge container (normal pump container or spray container) due to its high viscosity. However, the thing of patent document 1 has provided the sealing plate which closes the upper part of the cylinder hole of a cylinder cylinder part so that it can be pressed down with a push button member, and also has attached the piston to the dropper tube and the sealing plate, respectively. ,
(1) The structure is complicated and bulky,
(2) Since the number of parts increases and the number of assembling processes also increases, manufacturing costs increase.
(3) Since two pistons are used, the number of sealing locations increases, and quality control is troublesome.
As a simpler structure, it is conceivable to provide a dome-shaped elastic pressing portion instead of the above-described push button member and sealing plate, but this makes it difficult to discharge vigorously.

  An object of the present invention is to propose a measuring dropper container having a simple structure or a measuring dropper container which can be manufactured with a small number of parts or is not bulky.

The first means is to attach a dropper part 20 to the mouth and neck part 12 of the container part 2,
This dropper part 20
A tubular body 22 including a dropper tube 24 detachably supported on the mouth and neck 12;
An operation cylinder 40 provided with a lower portion screwed to the outer surface of the mouth-neck portion 12 and surrounding the outer surface of the tubular body 22 with a certain gap g above the mouth-neck portion 12;
A top cylindrical pressing member 60 having a lower part inserted into the gap g,
Formed by
One of the outer surface of the tubular body 22 between the pressing member 60 and the mouth and neck portion 12 and the inner surface of the operation tube 40 are formed between the upper locking surface r2 and the lower locking surface r1 facing each other. An engagement concave portion R is provided on the other side, and an engagement convex portion 46 loosely inserted into the engagement concave portion R is provided,
By screwing up the operation cylinder 40 with respect to the mouth and neck portion 12, the engagement convex portion 46 moves in the engagement concave portion R, and the measuring chamber C is expanded. In a metering dropper container configured to be drawn into and metered into 24,
The tubular body 22 has a seal tube 30 extending upward from the upper part of the dropper tube 24,
The seal tube 30 is fitted in a liquid-tight manner on the outer surface of the sealed tube 68 hanging down from the top wall 62 of the pressing member 60, and the seal tube 30 extending upward from the dropper tube 24 and the sealed tube 68 The space surrounded by the top wall 62 is defined as a measuring chamber C, and
An outward flange 66 is projected from an up-down middle part of a hanging cylinder 64 inserted into the gap g from an outer peripheral part of the top wall 62, and engagement recesses R through R on the outer surface of the tubular body 22 are formed. The spring receiving portion 36 was formed above the location where the engaging convex portion 46 was formed, and a spring 70 was interposed between the spring receiving portion 36 and the flange portion 66.

This means is a dropper container of a type in which the liquid is automatically measured by unscrewing the operation tube 40 from the mouth and neck of the container portion 2, and the top of the seal tube 30 and the pressing member 60 rising from the dropper tube 24. It is proposed that a measuring chamber C is formed inside a wall and a sealed tube 68 hanging from a top wall. Since the measuring chamber is constituted by the top wall of the pressing member, the sealed cylinder, and the seal cylinder rising from the dropper tube, the structure is simpler than in the related art.
Further, in this means, a spring 70 is interposed between a flange portion 66 protruding outward from a vertically intermediate portion of the hanging cylinder 64 shown in FIG. 1 and a spring receiving portion 36 formed on the outer surface of the tubular body 22. ing.
Further, since the spring 70 is located outside the seal cylinder 30 and the sealed cylinder 68, the spring 70 can be formed of a material that is hardly brought into contact with the liquid.

  The second means has the first means, and the pressing member 60 has a hanging cylinder 64 inserted into the gap g from an outer peripheral portion of the top wall 62 which is a push button, and a center of the back surface of the top wall 62. The sealed cylinders 68 are respectively integrally suspended from the portions.

  In this means, the pressing member 60 integrally includes a hanging cylinder 64 inserted into the gap g from the outer peripheral portion of the top wall 62 serving as a push button, and a sealed cylinder 68 from the center of the back surface of the top wall 62. Hanging. Since the sealed cylinder 68, which is a part of the measuring chamber, and the top wall 62, which is a push button, are incorporated into an integral part, the number of parts can be reduced as a whole.

The third means has the first means or the second means, and has a portion of the seal cylinder 30 extending upward from the dropper tube 24 extending substantially directly above the dropper tube and having a vertically long cylindrical hole therein. It has a cylindrical shape.

  In this means, as shown in FIG. 1, the portion of the seal tube 30 extending upward from the dropper tube 24 is a tube portion extending substantially directly above the dropper tube. The cylindrical hole of this cylindrical portion is assumed to be vertically long. Thereby, the measuring chamber C can be formed in a vertically long shape suitable for discharging a relatively small amount.

According to the first aspect of the invention, the seal cylinder 30 is extended upward from the dropper tube 24, and the sealed cylinder 68 is hung down from the top wall of the pressing member 60. Since the measuring chamber C is formed by the top wall 62, the configuration can be simplified.
Further, according to the invention according to this means, since the spring 70 is provided outside the seal cylinder 30 of the tubular body 22 and the sealed cylinder 68 of the pressing member 60, the spring is formed of a material (for example, metal) which is difficult to contact with the liquid. be able to.
According to the invention relating to the second means, since the sealed cylinder 68 constituting a part of the measuring chamber C is integrally hung from the top wall 62 which is a push button, the pressing member 60 which is an integral member has two functions. And the number of parts can be reduced.
According to the invention according to the third means, the seal cylinder 30 extending upward from the dropper tube 24 is formed in a cylindrical shape extending substantially directly above the dropper tube and having a vertically long cylindrical hole therein. Suitable for discharging a small amount of liquid.

It is a longitudinal section of a measuring syringe container concerning a 1st embodiment of the present invention. It is a principal part enlarged view of the measuring syringe container of FIG. It is explanatory drawing which shows the 1st stage of the use condition of the measuring dropper container of FIG. It is explanatory drawing which shows the 2nd stage of the use condition of the measuring dropper container of FIG. It is explanatory drawing which shows the 3rd stage of the use condition of the measuring dropper container of FIG.

  1 to 5 show a measuring dropper container according to a first embodiment of the present invention. The measuring dropper container includes a container section 2 and a dropper section 20. These members can be formed of, for example, synthetic resin or metal.

In the present embodiment, the container portion 2 is formed by the hakama member 4 and the container body 6.
The hakama member 4 is formed by erecting a fitting cylindrical portion 4b from an outer peripheral portion of a horizontal plate-shaped bottom plate 4a.
The container body 6 erects the trunk 10 from the outer peripheral portion of the bowl-shaped bottom 8, and erects the mouth and neck 12 from the upper end of the trunk 10 via the shoulder. The lower portion of the body portion 10 is formed in a small outer diameter portion 10a, and the fitting tube portion 4b is fitted to the outer surface of the small outer diameter portion, so that the container portion 2 is formed to be self-supporting. . However, these structures can be changed as appropriate. For example, the bottom portion 8 may be formed flat, and the peeling member may be omitted.

  As shown in FIG. 1, the dropper portion 20 is formed by a tubular body 22, an operating cylinder 40, and a pressing member 60.

  In the present embodiment, the tubular body 22 is formed by a dropper tube 24 and a seal tube 30 as shown in FIG.

The dropper tube 24 has a first outward flange 28 attached to an outer surface of an intermediate portion of the tube wall 26, and a packing P is attached to a lower surface of the first outward flange 28.
The dropper tube 24 has the first outward flange 28 placed on the mouth and neck portion 12 via the packing P, and hangs down into the container body 6 in the lower tube wall half 26a, and The upper wall portion 26b protrudes upward. On the outer surface of the upper half portion 26b of the tube wall, a locking rib 27 for preventing a seal cylinder from being removed as described later is provided.

The seal cylinder 30 extends upward from the upper half 26b of the tube wall. As a preferred embodiment, the portion of the seal tube 30 projecting upward from the upper half portion 26b of the tube wall can be formed as a straight tube portion extending substantially directly above the outer surface of the upper half portion. The cylindrical hole of the cylindrical portion is vertically long.
An annular seal portion 32 is formed on the inner surface (the upper end of the inner surface in the illustrated example) of the seal cylinder 30. The illustrated seal cylinder 30 has a lower inner surface fixed to the tube wall upper half 26b as a separate body from the tubular body 22, but the seal cylinder 30 may be integrally extended from the tube wall upper half. I do not care.
In the illustrated example, the lower end of the seal cylinder 30 is in contact with the upper end of the first outward flange 28. A second outward flange 34 projects from the outer surface of the lower half of the seal cylinder 30 at a certain distance from the first outward flange 28. The second outward flange 34 has a spring receiving portion 36 formed by recessing the outer peripheral portion of the upper surface. These structures can be appropriately changed.

  In the illustrated example of the tubular body 22, the outer diameter of the first outward flange 28 and the second outward flange 34 are substantially the same, and the lower engagement surface r1 which is the upper surface of the first outward flange 28 is An engagement recess R for inserting an engagement protrusion 46 to be described later is formed between the second outward flange 34 and an upper locking surface r2 which is a lower surface of the second outward flange 34. Although the engagement concave portion R of the present embodiment is formed as an annular concave groove, the shape can be appropriately changed.

  In the present embodiment, the operation cylinder 40 is formed of an inner cylinder 42 and an outer cylinder 48 which are fitted to each other so as not to rotate, as shown in FIG.

The inner cylinder 42 has a lower portion of the cylinder wall 43 screwed to the outer surface of the mouth and neck portion 12 as a threaded cylinder portion 43 a having a thread portion 44 on the inner surface, and the upper portion of the cylinder wall 43 is The upper part is an encircling tube part 43b that surrounds it with a certain gap g.
An engagement projection 46 having a constant thickness in the vertical direction is protruded inward from an intermediate portion of the cylindrical wall 43. As shown in FIG. 2, the engagement projection 46 is loosely fitted into the engagement recess R with a play of a certain width a between the engagement projection 46 and the upper locking surface r2. The function of the engagement convex portion 46 is that when the inner cylinder 42 is unscrewed from the mouth and neck portion 12, the lower limit position (the position in contact with the lower locking surface r <b> 1) within the engagement concave portion R from the upper limit position (the upper locking position). (Position in contact with the surface r2), and then pulling up the tubular body 22 via the upper locking surface r2. The engagement projection 46 may have any structure as long as this function is exhibited. In the illustrated example, the engagement projection 46 is formed as an inward flange projecting from the inner cylinder 42, but may be formed as, for example, a plate projecting from a plurality of portions of the inner cylinder.
Further, in the present embodiment, the engaging concave portion R is formed in the tubular body 22 and the engaging convex portion 46 is formed in the inner cylinder 42. On the contrary, the engaging convex portion is formed in the tubular body 22. In addition, the engagement concave portions may be formed in the inner cylinder 42, respectively.

The outer cylinder 48 covers the entire inner cylinder 42 and is non-rotatably fitted to the inner cylinder 42 by the rotation stopper T. An inward flange 50 protrudes from the upper end of the outer cylinder 48, and a claw portion 50a is attached to the inner peripheral portion of the lower surface of the inward flange 50.
In the illustrated example, the detent means T is formed by a detent ridge vertically provided on the inner surface of the outer cylinder 48 and a vertical groove vertically provided on the outer surface of the inner cylinder 42 and fitted with the detent ridge. ing.

The pressing member 60 integrally hangs a hanging cylinder 64 from an outer peripheral portion of a top wall 62 serving as a push button, and a sealed tube 68 from a center of a lower surface of the top wall 62.
The hanging cylinder 64 protrudes into the gap g between the tubular body 22 and the operation cylinder 40 through the flange hole of the inward flange 50. The hanging cylinder 64 is desirably formed to be at least longer than the sealed cylinder 68, and in the illustrated example, has a length that reaches the upper surface of the second outward flange 34 of the sealing cylinder 30.
The illustrated hanging cylinder 64 has a flange 66 attached to the lower end of a small-diameter upper half cylinder 64a and a large-diameter lower half cylinder 64b hanging down from the lower surface of the flange 66. The claw portion 50a of the outer cylinder 48 is disposed on the upper surface of the flange portion 66 so as to be lockable, and a stopper means S for preventing the pressing member 60 from being removed is formed. However, these structures can be appropriately changed.
The sealed tube 68 is formed to be longer than at least the play width a between the engaging concave portion R and the engaging convex portion 46 shown in FIG. The annular seal portion 32 of the seal cylinder 30 is slidably contacted with the outer surface of the sealed cylinder 68 in a liquid-tight manner. In the present embodiment, the tubular member 22 is only sealed at one place of the annular seal portion 32 with respect to the pressing member 60. Can be omitted.
A measuring chamber C is defined by the sealing cylinder 30, the sealed cylinder 68, and the top wall portion inside the sealed cylinder, and the volume of the measuring chamber is changed by the advance and retreat of the sealed cylinder 68 with respect to the sealing cylinder 30. Have been. The measuring chamber C of the present embodiment has a relatively elongated shape in the vertical direction, and is suitable for use in discharging a small amount of liquid. Further, because of such a shape, the dropper portion 20 does not become bulky and is easy to handle.
A spring 70 is interposed between the lower surface of the top wall 62 and the spring receiving portion 36.

In the configuration described above, in the state of FIG. 1, the lower end of the hanging cylinder 64 is locked to the upper surface of the second outward flange 34, so that the pressing member 60 cannot be pushed down.
Since the spring 70 does not come into contact with the liquid in the measuring chamber C, the degree of freedom in selecting the material of the spring is large, and an appropriate material (for example, metal) can be selected as needed.
When using the metering dropper container of the present invention, the operation cylinder 40 is rotated in the opening direction from the state of FIG. Then, the engagement convex portion 46 moves from the lower limit position shown in FIG. 1 to the upper limit position shown in FIG. During this time, the pressing member 60 also moves up according to the operation cylinder 40 by the elastic restoring force of the spring 70, so that the pressing member 60 can be pressed down.
At the same time, the inside of the measuring chamber C is made negative pressure, and a certain amount of liquid is sucked into the dropper tube 24. This allows automatic weighing.
When the operation cylinder 40 is further rotated, the operation cylinder 40 is screwed up with respect to the mouth and neck portion 12, so that the engagement convex portion 46 of the operation cylinder 40 comes into contact with the upper locking surface r2 of the engagement concave portion R and is pulled up. Therefore, the dropper section 20 separates from the container section 2 as shown in FIG.
Next, as shown in FIG. 5, the liquid in the dropper tube 24 may be discharged by pushing the top wall 62 of the pressing member 60. Since the entire pressing member 60 is pushed in against the elastic force of the spring 70, it is possible to discharge a high-viscosity liquid with an appropriate force as compared with the conventional technology in which the dome-shaped elastic pressing portion is pressed.
Since the measuring chamber C has an elongated shape in the dropper container of the present embodiment, the ejection amount when the pressing member is pushed in for a certain distance is small, and is suitable for ejecting a relatively small amount of liquid.

2: Container part 4: Hama member 4a: Bottom plate 4b: Fitting cylinder part
6 ... Container body 8 ... Bottom part 10 ... Body part 10a ... Small diameter part 12 ... Mouth and neck part 20 ... Dropper part 22 ... Tubular body 24 ... Dropper pipe 26 ... Pipe wall 26a ... Pipe wall lower half 26b ... Pipe wall upper half 27 ... locking rib 28 ... first outward flange 30 ... seal cylinder 32 ... annular seal part 34 ... second outward flange 36 ... spring receiving part 40 ... operation cylinder 42 ... inner cylinder 43 ... cylinder wall 43a ... screw cylinder part 43b ... surrounding cylinder part
44 ... Screw part 46 ... Engaging convex part 48 ... Outer cylinder 49 ... Rotating ridge 50 ... Inward flange 50a ... Claw part 60 ... Pressing member 62 ... Top wall 64 ... Dropping cylinder 64a ... Upper half cylinder part 64b ... Lower Half cylinder part 66 ... Flange part 68 ... Sealed cylinder 70 ... Spring C ... Measurement chamber g ... Gap P ... Packing R ... Engaging recess r1 ... Lower locking surface r2 ... Upper locking surface S ... Stopper means T ... Rotating Fastening means

Claims (3)

A dropper part (20) is attached to the mouth and neck part (12) of the container part (2),
This dropper part (20)
A tubular body (22) including a dropper tube (24) detachably supported on the mouth and neck (12);
The lower portion was screwed into the outer surface of the mouth-neck portion (12), and the outer surface of the tubular body (22) was provided above the mouth-neck portion (12) with a certain gap (g). An operation cylinder (40),
A pressing member (60) having a cylindrical top with a lower part inserted into the gap (g),
Formed by
One of an outer surface of the tubular body (22) between the pressing member (60) and the mouth and neck portion (12) and an inner surface of the operation cylinder (40), an upper engaging surface (r2) and a lower surface facing each other. An engaging concave portion (R) formed between the locking surfaces (r1) and an engaging convex portion (46) loosely inserted into the engaging concave portion (R) are provided on the other side, respectively.
By raising the operation cylinder (40) with respect to the mouth and neck (12), the engagement protrusion (46) moves in the engagement recess (R) and the measuring chamber (C) expands. Then, in a measuring dropper container configured to suck a certain amount of liquid into the dropper tube (24) and measure it,
The tubular body (22) has a seal cylinder (30) extending upward from the upper part of the dropper tube (24),
This sealing cylinder (30) is fitted in a liquid-tight manner on the outer surface of the sealed cylinder (68) hanging down from the top wall (62) of the pressing member (60), and extends upward from the dropper tube (24). A space surrounded by the sealing cylinder (30), the sealed cylinder (68) and the top wall (62) is defined as a measuring chamber (C), and
An outward flange portion (66) is projected from an up-down middle portion of a hanging cylinder (64) inserted into the gap (g) from the outer peripheral portion of the top wall (62), and the tubular body (22) A spring receiving portion (36) is formed on the outer surface of the upper surface of the portion where the engaging concave portion (R) to the engaging convex portion (46) are formed, and the spring receiving portion (36) and the flange portion (66) are formed. A measuring dropper container characterized by having a spring (70) interposed therebetween .   The pressing member (60) includes a hanging cylinder (64) inserted into the gap (g) from the outer periphery of the top wall (62), which is a push button, and a sealed cylinder from the back center of the top wall (62). The measuring dropper container according to claim 1, wherein each of the (68) is suspended integrally. The tubular sealing (30) portion extending the dropper tube from (24) upward, characterized in that a cylindrical shape having a substantially right above the extending and internally vertically long cylindrical hole from a dropper tube, according to claim 1 or claim Item 6. A measuring dropper container according to Item 2 .