JP2012046242A - Ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ejector that can reduce the number of parts and simplify a manufacturing process.SOLUTION: A push-down head 14 is provided with a cylinder body 15 extended downward, and an intermediate part 22 located between the lower edge of the cylinder body 15 and a top wall 17 of a mounting cap 11 in an ejector body 16 is mounted with a cylindrical stopper member 18 with its upper edge brought close to or abutting on the lower edge of the cylinder body 15 from the lower side and with its lower edge located on the top wall 17 of the mounting cap 11. The stopper member 18 includes a knob 30 formed by holding portions separated sideways from the intermediate part 22 into the mutually close or abutting state of the respective inner peripheral surfaces, and a clamping part 31 for clamping the intermediate part 22. The clamping part 31 is formed with a weakened part which is cuttable to circumferentially divide the clamping part 31.

Description

  The present invention relates to a dispenser.

As this type of discharger, conventionally, a cap-shaped mounting cap mounted on the mouth portion of the container body containing the contents, and the mounting cap is provided so as to be movable downward in an upward biased state. A pump having a stem and a pressing head attached to the upper end of the stem and having a discharge hole formed therein, and by pressing the pressing head to move the stem downward and operating the pump, 2. Description of the Related Art A configuration having a discharger main body in which contents are transferred and discharged from discharge holes is known.
In recent years, for example, as shown in Patent Document 1 below, contents are discharged by external force intentionally or unexpectedly applied by another person during distribution, storage, or sales display before sales. In addition, there is known a discharger capable of preventing the above-described problem and easily discriminating that it is not used. In this dispenser, a stopper member is detachably interposed between the pressing head located at the rising end position and the mounting cap, and a label is attached so as to cover the stopper member.

JP 2006-10744 A

  However, the conventional dispenser requires a step of attaching a stopper member at the time of manufacture and a step of attaching a label corresponding to the position of the stopper member, which is complicated and requires a large number of parts. It was.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the discharge device which can reduce a number of parts and can simplify a manufacturing process.

In order to solve the above problems, the present invention proposes the following means.
The present invention relates to a cap-shaped mounting cap mounted on the mouth of a container body containing contents, and a pump having a stem penetrating the mounting cap so as to move downward in an upward biased state. A pressing head mounted on an upper end of the stem and having a discharge hole formed therein, and the contents in the container body are operated by pressing the pressing head and moving the stem downward to operate the pump. Is a discharger having a discharger body that is transferred and discharged from the discharge hole, and a cylinder is extended downward in the push-down head, and a lower end of the cylinder in the discharger body In the intermediate portion located between the edge and the top wall portion of the mounting cap, the upper end edge approaches or contacts the lower end edge of the cylindrical body from below, and the lower end edge is on the top wall portion of the mounting cap. Positioned cylindrical stopper The stopper member includes a knob portion formed by holding a portion spaced laterally from the intermediate portion and holding each inner peripheral surface in proximity or in contact with each other, and the intermediate portion A tightening portion that tightens the portion, and the tightening portion is formed with a weakened portion that can be cut so as to divide the tightening portion in the circumferential direction.

  In this invention, in order to attach the stopper member to the intermediate portion, first, the stopper member is extrapolated to the intermediate portion in a state where the knob portion is not formed. Next, a portion of the stopper member that is laterally separated from the intermediate portion is sandwiched, and the inner peripheral surfaces are held close to or in contact with each other to form a knob portion. At this time, the tightening portion is deformed to reduce the diameter, and the intermediate portion is tightened from the outside in the radial direction. Accordingly, the stopper member is attached to the intermediate portion.

  In this way, the stopper member mounted on the intermediate portion has an upper end edge that approaches or contacts the lower end edge of the cylindrical body from below, and the lower end edge is positioned on the top wall portion of the mounting cap. With this configuration, the stopper member restricts the movement of the pressing head even when an external force is applied that intentionally or inadvertently presses down the pressing head during distribution, storage or sales display before sales. The contents can be prevented from being discharged from the discharge holes.

When the purchaser starts using, the weakened portion is cut, so that the tightening portion of the stopper member is divided in the circumferential direction. Therefore, the stopper member is expanded so that the divided portion is expanded in the circumferential direction. The fastening portion is elastically deformed and removed from the intermediate portion. Thereby, the pressing head can be pushed down together with the stem, and the pump can be operated to discharge the contents. That is, since this discharger cannot be used unless the weakened portion is cut, the purchaser can easily determine whether or not it has been used.
Furthermore, after the purchaser starts using the contents, the stopper member can be attached again to the intermediate portion. Can be prevented from being discharged.
And since the dispenser of this invention does not need to use a label conventionally, in order to acquire the effect mentioned above, it can reduce a number of parts and can simplify a manufacturing process.

  Further, in the discharger according to the present invention, the knob portion is formed so as to be opposed to the engagement convex portion formed on the inner peripheral surface of the stopper member and the engagement convex portion on the inner peripheral surface. It is good also as providing an engagement recessed part.

  In this case, the inner peripheral surfaces of the knob portions are brought close to each other or touched by a simple operation of engaging the engaging convex portions and the engaging concave portions facing each other on the inner peripheral surface of the stopper member with the knob portion 30 interposed therebetween. While being able to hold | maintain in the state contacted, since the said intermediate part can be clamp | tightened with a clamping part, mounting | wearing of the stopper member to the said intermediate part is easy.

  According to the dispenser according to the present invention, the number of parts can be reduced, and the manufacturing process can be simplified.

It is a perspective view which shows the discharge device which concerns on one Embodiment of this invention. It is a one-side sectional view which shows the discharge device of FIG. It is a perspective view which shows the state before mounting | wearing in the stopper member of the discharger which concerns on one Embodiment of this invention. In the stopper member of the discharger which concerns on one Embodiment of this invention, (a) The top view which shows the state before mounting | wearing, (b) The top view which shows the state after mounting | wearing. It is a perspective view which shows the state which cut | disconnected the weakening part in the stopper member of the discharger which concerns on one Embodiment of this invention. In the dispenser which concerns on one Embodiment of this invention, it is a side view which shows the state which mounted | wore the stopper member which cut | disconnected the weakening part.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the dispenser 1 according to the present embodiment includes a cap-like mounting cap 11 that is mounted on the mouth portion 2 a of the container body 2 in which the contents are stored, and the mounting cap 11. Discharger body comprising a pump 13 having a stem 12 penetrating the cap 11 so as to move downward in an upwardly biased state, and a pressing head 14 attached to the upper end of the stem 12 and having a discharge hole 14a. 16, and a stopper member 18 attached to an intermediate portion located between the lower end edge of the head cylinder (cylinder) 15 of the pressing head 14 and the top wall portion 17 of the attachment cap 11 in the discharger main body 16. Yes.

Then, with the stopper member 18 removed from the discharger body 16, the pressing head 14 is pressed to move the stem 12 downward to operate the pump 13, whereby the contents in the container body 2 are transferred and discharged. The ink is discharged from the hole 14a.
Here, the central axes of the container body 2, the mounting cap 11, the stem 12, and the head cylinder 15 of the pressing head 14 are located on a common axis. Hereinafter, this common axis is referred to as the central axis O, the top wall portion 26 side of the pressing head 14 along the direction of the central axis O is referred to as the upper side, and the bottom portion side (not shown) of the container body 2 is referred to as the lower side. The direction to do is called the radial direction, and the direction that goes around the central axis O is called the circumferential direction.

  The mounting cap 11 includes a ceiling wall portion 17 having a circular opening at the center, a peripheral wall portion 21 extending downward from the outer peripheral edge of the ceiling wall portion 17, and the opening in the ceiling wall portion 17. And a guide tube portion (intermediate portion) 22 that is disposed coaxially and extends upward. A female thread portion is formed on the inner peripheral surface of the peripheral wall portion 21, and the female cap portion is screwed into a male thread portion formed in the mouth portion 2 a of the container body 2, whereby the mounting cap 11 is attached to the container body 2. It is installed.

The pump 13 includes the stem 12, a cylinder 23 in which a lower portion of the stem 12 is disposed so as to be movable up and down, a piston member (not shown) disposed in the cylinder 23 so as to be vertically slidable, and the stem 12. And a biasing member (not shown) that biases the head upward.
The upper portion of the stem 12 protrudes upward from the upper end of the cylinder 23 and is disposed in the guide tube portion 22 of the mounting cap 11, and the upper end portion protrudes upward from the upper end of the guide tube portion 22.
The cylinder 23 is formed in a cylindrical shape and is disposed coaxially with the central axis O. At the upper end of the cylinder 23, a flange portion 23 a is provided so as to protrude outward in the radial direction over the entire circumference, and this flange portion 23 a is provided on the lower surface of the top wall portion 17 of the mounting cap 11 and the mouth of the container body 2. It is sandwiched in the vertical direction by the packing 24 on the opening edge of the portion 2a. The upper end of the pipe 25 is fitted into the lower end of the cylinder 23, and the lower end opening of the pipe 25 is located at the bottom of the container body 2.

The pressing head 14 extends downward from the top wall portion 26, the mounting cylinder portion 27 extending downward from the center portion of the lower surface of the top wall portion 26, and the outer peripheral edge of the top wall portion 26. The head cylinder 15 that surrounds the mounting cylinder portion 27 from the outside in the radial direction, and a discharge cylinder 29 that projects from the outer peripheral surface of the head cylinder 15 toward the outside in the radial direction are provided.
The upper end portion of the stem 12 is fitted in the mounting cylinder portion 27, and the inside of the mounting cylinder portion 27 and the inside of the stem 12 communicate with each other. The discharge hole 14 a is formed at the tip of the discharge cylinder 29, and the inside of the discharge cylinder 29 communicates with the inside of the mounting cylinder portion 27.

  In the head cylinder 15, the outer peripheral surface of the upper portion 15a is gradually reduced in diameter from the upper side to the lower side, and the outer peripheral surface of the lower portion 15b has the same outer diameter over the entire length in the vertical direction. The outer diameter of the lower portion 15b of the head cylinder 15 is equal to the outer diameter at the lower end of the upper portion 15a. The inner diameter of the lower part 15 b of the head cylinder 15 is larger than the outer diameter of the guide cylinder part 22 of the mounting cap 11, and the guide cylinder part 22 is moved into the head cylinder 15 from the lower side as the pressing head 14 moves up and down. It is designed to move forward and backward. Further, when the stopper member 18 is removed from the discharger main body 16 as described later, the lower end opening edge of the head cylinder 15 is opposed to the upper surface of the top wall portion 17 of the mounting cap 11 from above over the entire circumference. It has become. In the illustrated example, the upper end portion of the guide tube portion 22 is always positioned in the head tube 15 regardless of whether the press head 14 is pressed or not pressed, and the portion positioned below the upper end portion is When the pressing head 14 is not pressed, it is exposed to the outside.

In the above configuration, when the pressing head 14 is pressed, the stem 12 is first moved downward. Following the movement of the stem 12, the piston member moves downward while being in sliding contact with the inner peripheral surface of the cylinder 23. As a result, the contents in the cylinder 23 are compressed, and the compressed contents in the cylinder 23 enter the stem 12 and move upward in the stem 12.
Thereafter, when the pressing of the pressing head 14 is released, the piston member is restored and moved upward while being in sliding contact with the inner peripheral surface of the cylinder 23 by the upward biasing force of the biasing member. As a result, the inside of the cylinder 23 is depressurized, and the contents stored in the container body 2 are sucked into the cylinder 23 through the pipe 25.

  The stopper member 18 has a cylindrical shape, and an upper end edge thereof is close to or comes into contact with a lower end edge of the head cylinder 15 from below, and a lower end edge is disposed on the top wall portion 17 of the mounting cap 11. . As shown in FIGS. 1 to 4, the stopper member 18 is formed in such a manner that the inner peripheral surfaces thereof are held close to or in contact with each other by sandwiching a portion that is laterally separated from the guide tube portion 22. And a fastening portion 31 that is elastically deformed when the knob portion 30 is formed and fastens the guide tube portion 22. The fastening portion 31 is divided in the circumferential direction. A weakened portion 32 that can be cut is formed.

  As shown in FIG. 4A, the top view of the stopper member 18 in a state before being mounted on the guide tube portion 22 is substantially half of the outer periphery thereof in a semicircular arc shape. A pair of linear portions 18b that are linearly connected to both ends in the circumferential direction of the arc-shaped portion 18a extend so as to gradually approach each other as the distance from the semi-arc-shaped portion 18a increases. Further, the ends of the linear portions 18b opposite to the semicircular arc portions 18a are connected to the tip wall portions 33 that intersect so as to form an obtuse angle with the respective linear portions 18b. . When the stopper member 18 is mounted on the guide tube portion 22, the semicircular arc-shaped portion 18 a is the tightening portion 31, and the pair of linear portions 18 b are the knob portion 30.

  Of the inner peripheral surface of the stopper member 18, a pair of grooves 34 extending in the up and down direction with a gap in the circumferential direction is formed in a portion corresponding to the semicircular arc portion 18 a (tightening portion 31). In the semicircular arc-shaped portion 18 a of the stopper member 18, the portions where the grooves 34 are formed are formed thinner than the other portions to form the pair of weakened portions 32, and the weakened portions 32 are interposed between the weakened portions 32. Is formed with a cutting operation piece 35 protruding outward in the radial direction. The cutting operation piece 35 includes a support plate 35a that protrudes radially outward from the upper end edge of the stopper member 18, and a grip plate 35b that extends downward from the outer peripheral edge of the support portion 35a. Yes.

  Further, in the inner peripheral surface of the stopper member 18, a portion corresponding to the linear portion 18 b (knob portion 30) is opposed to the engaging convex portion 36 and the engaging convex portion 36 and can be engaged. Engaging recesses 37 are formed. The engaging convex portion 36 is formed on one linear portion 18b and has a protruding shape that protrudes toward the other linear portion 18b, and its distal end portion has a larger diameter than the other portion. . The engagement concave portion 37 is a through hole formed at a position facing the engagement convex portion 36 in the other linear portion 18b, and the inner diameter thereof is smaller than the tip end portion of the engagement convex portion 36. It can be fitted to a portion other than the tip of the convex portion 36. In addition, a cover cylinder 38 is formed to protrude from the outer peripheral surface of the other linear portion 18 b at a position corresponding to the engagement recess 37, and the tip of the engagement protrusion 36 is formed in the cover cylinder 38. It can be accommodated.

  In addition, a pair of concave portions 39 extending in the vertical direction is formed in a portion of the inner peripheral surface of the stopper member 18 that is connected to the linear portion 18 b in the distal end wall portion 33. Thereby, the said connection part in the front-end | tip wall part 33 is thinner than the intermediate part pinched | interposed into this connection part.

Next, a procedure for mounting the stopper member 18 having such a configuration on the guide cylinder portion 22 of the discharger main body 16 will be described.
First, as shown in FIG. 4A, the stopper member 18 is extrapolated to the guide tube portion 22 in a state where the knob portion 30 is not formed.
Next, as shown in FIG. 4B, in the stopper member 18, a pair of linear portions 18b separated from the guide cylinder portion 22 to the side (left side in FIG. 4B) are sandwiched, The inner peripheral surfaces are held close to or in contact with each other. Specifically, by engaging the engaging convex portion 36 of one linear portion 18b and the engaging concave portion 37 of the other linear portion 18b, the inner peripheral surfaces of the knob portion 30 are brought close to or in contact with each other. . At this time, the tightening portion 31 is deformed so as to be reduced in diameter and is formed into a cylindrical shape, and the guide tube portion 22 is tightened from the radially outer side. As a result, the stopper member 18 is attached to the guide tube portion 22.

According to the dispenser 1 which concerns on this embodiment demonstrated above, there exist the following effects.
That is, in the state where the stopper member 18 is mounted on the guide cylinder portion 22 as described above (see FIGS. 1 and 2), the stopper member 18 has the upper end edge approaching or contacting the lower end edge of the head cylinder 15 from below. The lower edge is located on the top wall portion 17 of the mounting cap 11. With such a configuration, even when an external force is intentionally or unintentionally pushed down by the other person during distribution, storage or sales display prior to sale, the stopper member 18 can Since the downward movement is restricted, the contents can be prevented from being discharged from the discharge hole 14a.

  Then, when the purchaser starts using, the tightening portion 31 of the stopper member 18 is rotated as shown in FIGS. 5 and 6 by operating the cutting operation piece 35 and cutting the weakening portion 32. Since it is divided in the direction, the fastening portion 31 of the stopper member 18 is elastically deformed and removed from the guide tube portion 22 so as to widen the divided portion in the circumferential direction. As a result, the pressing head 14 can be pushed down together with the stem 12, and the pump 13 can be operated to discharge the contents. That is, since this dispenser 1 cannot be used unless the weakening portion 32 is cut, the purchaser can easily determine whether or not it has been used.

  In addition, a pair of weakening portions 32 are formed apart from each other in the circumferential direction of the tightening portion 31 and extend in the vertical direction, and the tightening portion 31 is interposed between the pair of weakening portions 32 in the tightening portion 31. A cutting operation piece 35 that protrudes outward in the radial direction is formed. With this configuration, when the purchaser operates the cutting operation piece 35, the weakening portion 32 is easily cut, and the portion between the pair of weakening portions 32 in the fastening portion 31 is separated from the fastening portion 31. Since the said part of the fastening part 31 is opened, workability | operativity is good.

Further, after the purchaser starts using the contents, the stopper member 18 can be mounted again on the guide tube portion 22, so that the discharger 1 is applied with an external force applied unexpectedly even after the start of use. Therefore, it is possible to prevent the contents from being discharged.
And since the dispenser 1 of this embodiment does not need to use a label like the past, in order to obtain the above-mentioned effect (namely, in order to discriminate use / unused), the number of parts can be reduced, The manufacturing process can be simplified.

  Further, the knob portion 30 includes an engagement convex portion 36 formed on the inner peripheral surface of the stopper member 18 and an engagement concave portion 37 formed so as to face the engagement convex portion 36 on the inner peripheral surface. ing. With this configuration, the inner peripheral surface of the knob portion 30 can be operated by a simple operation of engaging the engaging convex portion 36 and the engaging concave portion 37 facing each other on the inner peripheral surface of the stopper member 18 with the knob portion 30 interposed therebetween. While being able to hold | maintain in the state which mutually adjoined or contacted, the fastening part 31 can be fastened to the guide cylinder part 22, and mounting | wearing of the stopper member 18 to the guide cylinder part 22 is easy.

In addition, since the pair of concave portions 39 are formed at both ends of the tip wall portion 33 so as to be thin, the tip wall portion 33 is formed when the pair of linear portions 18b (knob portions 30) are sandwiched and elastically deformed. Each of the linear portions 18b is easy to rotate around both ends of the shaft, and the engaging convex portion 36 and the engaging concave portion 37 of the knob portion 30 are easily engaged.
Further, in the knob portion 30, the size in the sandwiching direction (the vertical width in FIG. 4B) of the portion where the engaging convex portion 36 and the engaging concave portion 37 are located is larger than the size in the sandwiching direction of the tip wall portion 33. Therefore, it is easy for the purchaser to grip the knob portion 30, and the stopper member 18 is easy to attach and detach to the guide tube portion 22.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the guide cylinder portion 22 of the mounting cap 11 is shown as the intermediate portion on which the stopper member 18 is mounted in the discharger body 16, but the stem 12 may be used instead.
In the push-down head 14, the lower end opening edge of the head cylinder 15 is shown as a cylinder that approaches or abuts the upper end edge of the stopper member 18 from the upper side.

In addition, although the pair of weakened portions 32 is formed in the tightening portion 31 of the stopper member 18, only one weakened portion 32 may be formed. Moreover, although the weakening part 32 extended in the up-down direction, it may replace with this and may extend spirally so that it may go to either one of the circumferential directions as it goes below from the upper direction.
Further, the cover cylinder 38 is formed in the knob portion 30 and the front end portion of the engaging convex portion 36 can be accommodated in the cover cylinder 38. However, the cover cylinder 38 may not be formed. .

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Discharger 2 Container body 2a Mouth part 11 Mounting cap 12 Stem 13 Pump 14 Press head 14a Discharge hole 15 Head cylinder (cylinder)
16 Discharger body 17 Top wall part of mounting cap 18 Stopper member 22 Guide tube part (intermediate part)
30 Knob part 31 Fastening part 32 Weak part 36 Engaging convex part 37 Engaging concave part

Claims (2)

A cap-shaped mounting cap mounted on the mouth of the container body containing the contents;
A pump having a stem penetrating the mounting cap so as to move downward in an upwardly biased state;
A pressing head attached to the upper end of the stem and formed with a discharge hole, and
A discharger having a discharger body in which the contents in the container are transferred and discharged from the discharge hole by pressing the pressing head and moving the stem downward to operate the pump,
A cylindrical body extends downward from the pressing head, and an upper edge is provided at an intermediate portion located between the lower end edge of the cylindrical body and the top wall portion of the mounting cap in the discharger body. Is approaching or abutting from the lower side to the lower end edge of the cylindrical body, and a cylindrical stopper member whose lower end edge is located on the top wall portion of the mounting cap is mounted,
The stopper member is
A knob portion formed by holding a portion that is laterally separated from the intermediate portion and holding each inner peripheral surface in proximity or in contact with each other,
A fastening part for fastening the intermediate part,
The dispenser according to claim 1, wherein the tightening portion is formed with a weakening portion that can be cut so as to divide the tightening portion in the circumferential direction. The dispenser according to claim 1, wherein
The knob portion includes an engaging convex portion formed on an inner peripheral surface of the stopper member, and an engaging concave portion formed so as to face the engaging convex portion on the inner peripheral surface. A dispenser.

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