JP4203869B2 - Cap with dropper - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cap with a dropper capable of taking out a liquid such as a skin lotion or a chemical solution stored in a container by a dropper function.
[0002]
[Prior art]
As a representative example of a conventional cap with a dropper, the structure disclosed in Japanese Utility Model Laid-Open No. 5-10258, that is, a dropper that constitutes a portion with a screwed assembly with respect to a container and is a combination of a dropper tube and an elastic suction body An inner lid with a functional part assembled thereto, an outer lid that is attached to the inner lid so that it cannot be pulled out and can be rotated by a fixed angle, and that moves up and down the button for operating the elastic suction body by rotating with respect to the inner lid; A combination of these is known.
[0003]
In this prior art, in the closed state of the container, the button is in a state of crushing the elastic suction body, and when the outer lid is rotated in the opening direction from this closed state, the button is raised and the elastic suction body is Is restored to its original shape and the content liquid is sucked into the dropper tube, then the inner lid is screwed and rotated, and the cap is detached from the container. To pour out.
[0004]
[Problems to be solved by the invention]
However, in the above-described prior art, in the closed state of the container, since the elastic suction body is held in a collapsed posture, the elastic suction body inevitably undergoes elastic fatigue or deformation fatigue at an early stage. There was a problem that the dropper function deteriorated early.
[0005]
Further, the inner lid and the outer lid constituting the cap need to be assembled so as to be capable of rotational displacement with each other, and this mutual turning assembly is required to relatively rotate the inner lid and the outer lid. It is necessary to satisfy the relationship that the rotational operating force required to unscrew the inner lid from the container is larger than the operating force. For this reason, the assembly structure and assembly of the inner lid and the outer lid must be satisfied. There was a problem that setting the sticking strength was troublesome.
[0006]
Therefore, the present invention was devised to solve the above-described problems in the prior art, and in addition to the elastic deformation of the elastic dome, the contents of the dropper tube are utilized by utilizing the screwing operation of the cap with respect to the container body. Achieving quantitative suction of liquid is a technical issue, so that there is no deformation fatigue of the elastic dome, which is the source of the liquid suction force of the content, so that a good syringe function can be demonstrated stably over a long period of time. Another object of the present invention is to simplify the structure and handling by adopting a configuration in which the dropper function portion sucks the content liquid in accordance with the relative displacement in the vertical direction accompanying screwing.
[0007]
[Means for Solving the Problems]
Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
It has a dropper tube, and is a cap with a dropper that makes the tube body of this dropper tube hang down in the container body in a closed position,
An operation button is installed at the upper end so that it cannot be pulled out and can be moved up and down in a protruding manner, and the lower half of the container is screwed into and removed from the mouth of the container body by means of an inner flange-like partition wall. Having a cap body with a continuous inner cylinder;
A top plate with a vent hole in the center is connected to the main cylinder, and an outer cylinder piece is provided around the outer circumference of the main cylinder, and this inner cylinder piece is immovably installed in the upper half of the outer cylinder of the cap body. Having an assembled support to be assembled;
A main body cylinder of this assembly support body is closely assembled with an exterior assembly from above, and has a hemispherical shell-like elastic dome that is crushed by an operation button,
A bellows made of an elastic material, which is closely attached to the main cylinder of the assembly support body from below, and has a fitting cylinder piece suspended from the center of the telescopic cylinder that stands up in the main cylinder. Having a body,
A spring that is mounted between the center part of the expansion / contraction cylinder part of the bellows body and the center part of the top plate of the assembled support, and biases the center part of the expansion / contraction cylinder part of the bellows body downward;
At the upper end of the straight thin tube main body, a flange having a size opposite to the upper end surface of the mouth of the container body is provided, and the assembled cylinder protruding above the flange is used as the inner cylinder of the cap body. The upper end of the assembled cylinder projecting upward from the inner cylinder of the cap body is closely fitted to the fitting cylinder piece of the bellows body. Having a dropper tube,
It is in.
[0008]
In the closed posture state, the cap with the dropper in which the pipe body of the dropper tube is suspended in the container body is against the elasticity of the spring by the force of the screwed assembly of the cap body against the mouth of the container body, and the bellows body The middle part of the bellows body is different from the first combination which is a combination of the cap body, the operation button, the assembly support body and the elastic dome. It is located at the first intrusion position that penetrates most deeply into the main cylinder of the assembly support.
[0009]
When the cap body is rotated in the screwing direction from the closed posture, the first combination is displaced upward with respect to the container body by this rotation, but the second combination is the container body by the action of the spring. However, relative displacement along the ascending / descending direction occurs between the first combination and the second combination.
[0010]
Due to the relative displacement between the first combination and the second combination, the central portion of the bellows body is moved from the first intrusion position to the main cylinder of the assembly support body, and the second invasion is shallow. Displacement to the intrusion position causes negative pressure in the dropper space formed by the combination of the assembly support, the elastic dome and the bellows.
[0011]
The negative pressure in the dropper space acts in the pipe body of the dropper tube through the ventilation opening of the bellows body, and sucks the content liquid in the container body into the tube body.
[0012]
The relative displacement between the first combination and the second combination stops due to the impingement of the dropper tube against the inner cylinder of the cap body, and after that, both the combinations move into the container body according to the screwing rotation. On the other hand, they are displaced upward together, whereby the cap with the dropper is detached from the container body.
[0013]
As described above, since a desired amount of the liquid content is sucked and stored in the dropper tube of the cap with a dropper while being removed from the container body, the user pushes down the operation button against the cap with the dropper removed. The content liquid is discharged by crushing the elastic dome to achieve the content liquid.
[0014]
When the cap with a dropper is screwed and assembled to the mouth of the container body, the second combination is made against the first combination against the elasticity of the spring as the cap body is screwed onto the container body. The object rises relatively, and the central portion of the bellows body enters the first intrusion position with respect to the main cylinder of the assembly support body and returns to the original closed posture state.
[0015]
When returning to the closed posture state of the cap with a dropper, even if the content liquid remains in the dropper tube, for example, by the penetration to the first penetration position with respect to the main cylinder of the assembly support body in the center of the bellows body, The content liquid in the dropper tube is forcibly discharged, so that the cap with a dropper always stands by in a constant state, that is, in a state where no content liquid is positioned in the dropper tube.
[0016]
The invention according to claim 2 is the invention according to claim 1, wherein a key vertical groove is provided on the inner peripheral surface of the inner cylinder of the cap body, and the upper end part of the inner cylinder is a reduced diameter tip part whose diameter is reduced upward, At the lower part of the outer peripheral surface of the tube part with the dropper tube, a key vertical strip that projects from the circumferential direction to the key vertical groove of the cap body is projected, and the cylinder part with the assembly protruding upward from the inner cylinder of the cap body is provided. In addition to this, a stopper ridge is provided on the outer peripheral surface of the upper end portion so that the upper end of the reduced diameter tip end portion of the cap main body can not get over from below.
[0017]
In the invention according to claim 2, the first combination is obtained by the contact from the lower end with respect to the stopper protrusion of the reduced diameter tip and the contact from above the partition wall of the cap body with respect to the flange of the dropper tube. In addition to achieving the assembly in which the second combination with respect to the key can be moved up and down with a fixed stroke, the first combination and the second combination Since the relative rotation of the bellows body is made impossible, no rotational displacement force is applied to the bellows body which is deformed and stretched, so that the bellows body can be safely stretched and contracted.
[0018]
The invention according to claim 3 is the invention according to claim 1, wherein the cap main body is externally assembled to the main cylinder having the outer cylinder and the inner cylinder, and the outer cylinder of the main cylinder, and the operation button is provided at the upper end. It is composed of a cover tube assembled with the interior.
[0019]
In the invention according to claim 3, since the cover tube fitted and fitted to the main body tube is made of metal, the excellent decorativeness of the cover tube can be effectively applied to the appearance of the cap body. It is possible to move up and down in a protruding manner so that the operation button cannot be pulled out of the cap body by simply mounting the cover tube with the operation button built-in by simple insertion processing to the main body tube by simple fitting processing. Possible assembly can be achieved.
[0020]
The invention according to claim 4 is the one according to claim 1 with the addition of the fact that a through-hole penetrating vertically is formed in the dropper portion of the dropper tube facing the mouth opening of the container body. is there.
[0021]
In the invention according to claim 4, the spring enters and exits the air in and out of the container body due to the increase / decrease in the volume of the dropper space, which is caused by the relative lifting displacement of the first combination and the second combination. This prevents the dropper of the dropper tube that is in close contact with the upper end surface of the mouth of the container body from interfering with this, and as a result of the operation of attaching or removing the cap with the dropper to or from the container body, suction of the liquid content or Discharging is performed smoothly and reliably.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The cap 1 with a dropper is a first combination, that is, a combination of the cap body 2, the operation button 12, the assembly support 16, and the elastic dome 21, and a bellows 23 that is the second combination. A combination with the dropper tube 29 and a spring 28 that is mounted between the assembly support 16 and the bellows body 23 and biases the bellows body 23 downward, as shown in FIG. The operation button 12 is assembled in the main body 2 so as to protrude, and the dropper tube 29 is assembled in a hanging manner.
[0023]
The cap main body 2 that forms a screwed assembly portion with respect to the container body 36 and an assembly portion of the dropper tube 29 includes a main body cylinder 3 that is a main portion thereof, and a metal cover cylinder 10 that exhibits excellent decorativeness. It is composed of
[0024]
The main body cylinder 3 has an inner flange-shaped partition wall 6 in the center of the inner peripheral surface of a cylindrical outer cylinder 4 in which a thread 5 that is screwed into the mouth portion 37 of the container body 36 is formed on the inner peripheral surface of the lower half. The inner cylinder 7 is arranged upright coaxially, and the upper half of the outer cylinder 4 and the partition wall 6 form an assembly portion of the assembly support 16. The assembling part is formed.
[0025]
The cover cylinder 10 is integrally formed with an inner casing cylinder piece 11 in a form that is bent and reversed inwardly at the upper end of a cylindrical body that is slightly reduced in diameter upward. Prevents upward escape.
[0026]
The assembling support 16 is connected to the upper end portion of the inner peripheral surface of the cylindrical main body cylinder 17 with a vent hole 18 penetrating vertically in the center. A flange tube piece 20 is formed so as to protrude from the outer peripheral surface of the tube 17 so as to form a circumferential groove opened upward.
[0027]
The assembly support body 16 is assembled to the main body cylinder 3 by firmly fitting and locking the rod piece 20 to the central portion of the inner peripheral surface of the outer cylinder 4.
[0028]
The elastic dome 21 is formed of an elastic material such as rubber into a hemispherical shell shape with the peripheral end portion being a thick assembled edge portion 22, and the assembled edge portion 28 is formed by the rod tube piece 20. By firmly and tightly fitting and assembling in the circumferential groove, the upper half portion of the dropper space is formed on the assembly support 16 and the top plate 18 and assembled in a mounting form.
[0029]
The operation button 12 that crushes and operates the elastic dome 21 hangs the pressing foot 13 that applies a crushing force to the elastic dome 21 from the center of the bottom surface of the top wall that can be fitted into the upper end of the cap body 2. And the guide cylinder piece 14 is vertically extended at the lower end of the peripheral wall of the top cylinder, and the inner cylinder piece 11 of the cover cylinder 10 on the peripheral wall of the top cylinder, and A light sliding contact with the upper end portion of the outer cylinder 4 of the guide cylinder piece 14 stabilizes the up-and-down displacement operation with respect to the cap body 2, and the upper end surface of the guide cylinder piece 14 with respect to the inner cylinder piece 11 of the cover cylinder 10 Due to the locking of the step portion 15 from below, the cap body 2 is assembled so that it cannot be pulled out.
[0030]
The bellows body 23 has a fitting edge portion 27 which is a peripheral end portion formed thick with an elastic material such as rubber at the lower end portion of the main cylinder 17 of the assembly support body 16, and below the rod tube piece 20. From the lower end of the fitting edge portion 27, the telescopic cylinder portion 24 having a crest-like cylindrical shape located in the main cylinder 17 is provided continuously. Then, a bottomed cylindrical fitting tube piece 25 having a vent opening 26 in the bottom wall is provided in a suspended manner from the center of the top wall of the telescopic tube portion 24, and the main body of the assembly support 16. The assembly to the cylinder 3 ensures a dense and strong assembly to the assembly support 16.
[0031]
The spring 28 is formed into a coil spring structure having a diameter that can be inserted into the fitting cylinder piece 25 of the bellows body 23, and damages the opening state of the ventilation opening 26 in a state where the spring 28 is inserted and assembled into the fitting cylinder piece 25. The lower end is elastically contacted with the bottom wall of the fitting cylinder piece 25, and the upper end is elastically contacted with the top plate 18 of the assembly support body 16 without harming the opening state of the vent hole 19 as well. A push-down force is applied to the telescopic cylinder portion 24.
[0032]
The dropper tube 29 is provided with an outer collar-shaped collar piece 31 that is opened by penetrating a through hole 32 at the upper end of a straight thin tubular pipe body 30, and the pipe body 30 is disposed above the collar piece 31. Assemble the cylindrical part 33 in an extended form, and move up and down to a key vertical groove 8 provided on the inner peripheral surface of the inner cylinder 7 of the cap body 2 on the lower outer peripheral surface of the assembled cylindrical part 33. A key ridge 34 that freely engages is engraved, and a stopper ridge 35 on which the reduced diameter tip portion 9 that is the upper end portion of the inner cylinder 7 abuts on the upper outer peripheral surface of the assembled cylinder portion 33 from the lower side so as not to be able to get over is provided. It is constructed by projecting around, and the fitting cylinder piece 25 of the bellows body 23 is firmly and tightly fitted to the upper end portion of the cylinder part 33 with this assembly, and the assembly of the bellows body 23 and the dropper tube 29 is achieved. Is done.
[0033]
Next, an example of the assembly procedure of the illustrated embodiment will be described.
Inserted into the inner cylinder 7 of the main body cylinder 3 is an assembled cylinder portion 33 of the dropper tube 29 from below until the reduced diameter tip portion 9 forcibly gets over the stopper projection 35 and protrudes on the inner cylinder 7. The fitting cylinder piece 25 of the bellows body 23 is closely fitted and assembled to the upper end of the portion 33 to complete the assembly of the second combination.
[0034]
When the assembly of the bellows body 23 to the dropper tube 29 is completed, the assembly support body 16 assembled with the elastic dome 21 is attached to the bellows body 23 with the spring 28 temporarily mounted on the bellows body 23. In the form in which the edge portion 27 is fitted to the lower portion of the main cylinder 17 and the fitting edge portion 27 is firmly sandwiched between the main barrel 3 and the undercut is formed in the upper half of the outer cylinder 4 of the main barrel 3. It is attached and fixed using coupling.
[0035]
When the assembly of the assembly support 16 to the main body cylinder 3 is completed, the cover cylinder 10 into which the operation button 12 is inserted and assembled is externally fitted to the outer cylinder 4 from above, and the cap 1 with the dropper is assembled. Complete.
[0036]
The through-hole 32 formed in the collar piece 31 of the dropper tube 29 causes the collar piece 31 to move into the container body 36 when changing between the closed state of the right half of FIG. 3 and the screwed state of the left half of FIG. The mouth portion 37 of the container is not sealed, thereby enabling a smooth pressure change in the container body 36 following the pressure change in the dropper space due to the relative lifting displacement of the first combination and the second combination. The suction and discharge of the content liquid to the dropper tube 29 accompanying the screwing operation of the cap with respect to the container body 36 is reliably and smoothly achieved.
[0037]
Reference numeral 38 denotes a soft material made of a soft material fitted and assembled in the mouth portion 37 of the container body 36, which is mounted on the upper end surface of the mouth portion 37 on the upper end of the fitting tube which is tightly fitted into the mouth portion 37. An outer flange that sets the limit of 38 fitting assembly is provided around, and lightly elastically contacts the outer peripheral surface of the pipe body 30 of the dropper tube 29 via a plurality of connecting arm pieces bent into a key shape at the lower end of the fitting cylinder. A squeeze ring 39 for squeezing off the content liquid adhering to the outer peripheral surface of the tube main body 30 is provided continuously.
[0038]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
The elastic dome that achieves suction of the content liquid to the dropper tube by elastic return force is elastically deformed only during the suction and discharge operation of the content liquid, and the other is not deformed, so it has a naturally stable posture. There is no risk of improper deformation due to fatigue, etc., or deterioration of elasticity, so that a good and stable syringe function can be reliably exhibited over a long period of time.
[0039]
Because the relative displacement of the two movable parts is achieved by the screwing operation of the cap with the dropper relative to the container body, the content liquid is sucked into the dropper tube, so the magnitude of the operating force is related between the two movable parts. Therefore, the entire structure can be simplified and the handling operation can be simplified.
[0040]
In the invention of claim 2, it is not necessary for the bellows body by assembling the dropper tube to the cap body so that it cannot be detached and can be moved up and down, but also cannot be displaced relative to each other. Therefore, the appropriate dropper function can be stably exhibited without causing unnecessary deformation of the bellows body.
[0041]
In the invention according to claim 3, since the cap body is a combined structure of the main body cylinder and a simple cylindrical cover cylinder, the cover cylinder fitted around the main body cylinder can be made of metal, Thereby, the excellent decorativeness of the metal material can be effectively exhibited.
[0042]
In the invention according to claim 4, the pressure change in the container body is quickly and accurately followed with respect to the pressure change in the dropper space due to the relative up-and-down displacement of the first combination and the second combination. As a result, it is possible to smoothly and reliably realize the contents liquid suction / discharge operation of the dropper tube accompanying the attachment / detachment of the cap to / from the container body.
[Brief description of the drawings]
FIG. 1 is an overall front view of a container in a closed state assembled to a container body according to an embodiment of the present invention.
2 is an overall front view of the embodiment of the present invention shown in FIG.
3 is an enlarged vertical cross-sectional view of a main part in a closed state assembled to a container book in the embodiment shown in FIG. 2;
4 is an enlarged plan cross-sectional view of a main part showing an assembled structure of an inner cylinder and an assembled cylinder portion in the embodiment shown in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Cap 2 with a dropper; Cap main body 3; Main body cylinder 4; Outer cylinder 5; Screw 6; Partition 7; Inner cylinder 8; Key vertical groove 9; Operation button 13; pressing foot piece 14; guide tube piece 15; locking step 16; assembly support 17; main body tube 18; top plate 19; vent hole 20; Part 23; bellows body 24; telescopic cylinder part 25; fitting cylinder piece 26; vent opening 27; fitting edge 28; spring 29; dropper pipe 30; pipe body 31; Part 34; key vertical strip 35; stopper projection 36; container body 37; mouth 38;

Claims (4)

A cap with a dropper that has a dropper tube (29), and that causes the tube body (30) of the dropper tube (29) to hang down in the container body (36) in a closed position, with an operation button (12) at the upper end In the middle of the outer cylinder (4), which can be pulled out and displaced in a projecting manner and is detachably attached to the mouth (37) of the container body (36) in the lower half. The cap body (2) with the inner cylinder (7) connected through the partition wall (6) of the main body (2) and the top plate (18) with a vent hole (19) in the center are connected to the main cylinder (17). An assembly support is provided in which an outer cylinder piece (20) is provided around the outer peripheral surface of the main cylinder (17), and the inner cylinder is immovably attached to the upper half of the outer cylinder (4) with the outer cylinder piece (20). A body (16) and a hemispherical elastic dome (21) which is tightly attached to the main cylinder (17) of the assembly support (16) from above and is crushed by the operation button (12). ), And a main body cylinder (17) of the assembled support body (16), which are closely assembled from below to the main body cylinder (17), the main body cylinder (17) A bellows body (23) made of an elastic material in which a fitting cylinder piece (25) having a ventilation opening (26) is vertically suspended at a central portion of the expansion and contraction cylinder portion (24) standing at a position, and the bellows body (23 ) Of the telescopic cylinder part (24) and the top plate (18) central part of the assembled support (16), and a spring for biasing the central part of the telescopic cylinder part (24) downward ( 28) and a flange piece (31) having a size opposite to the upper end surface of the mouth portion (37) of the container body (36) is provided around the upper end portion of the pipe body (30). The assembled cylinder portion (33) protruding upward is fitted into the inner cylinder (7) so that it cannot be pulled out but can be moved up and down, and is assembled so as to protrude upward from the inner cylinder (7). A dropper cap comprising: a dropper tube (29) in which an upper end portion of the assembled tube portion (33) is closely fitted on the fitting tube piece (25) of the bellows body (23). A key longitudinal groove (8) is provided on the inner peripheral surface of the inner cylinder (7), and the upper end of the inner cylinder (7) is formed as a reduced diameter distal end (9), and the dropper tube (29) A key vertical strip (34) that locks in the key vertical groove (8) from the circumferential direction protrudes from the lower portion of the outer peripheral surface of the assembled cylindrical portion (33) and protrudes upward from the inner cylinder (7). The cap with a dropper according to claim 1, wherein a stopper protrusion (35) is provided on an outer peripheral surface of an upper end portion of the assembled cylinder portion (33) so that an upper end of the reduced diameter distal end portion (9) abuts from below so as not to get over. The cap body (2) is externally assembled to the main cylinder (3) having the outer cylinder (4) and the inner cylinder (7), and the outer cylinder (4) of the main cylinder (3), and is operated at the upper end. 3. A cap with a dropper according to claim 1 or 2, comprising a metal cover cylinder (10) with a button (12) assembled therein. The through hole (32) penetrating vertically is formed in the hook piece (31) portion of the dropper tube (29) facing the opening (37) of the container body (36). Cap with dropper.

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