JP2024018722A - Dispenser - Google Patents

Abstract

An object of the present invention is to provide a dispensing device capable of switching the dispensing amount of contents and stably discharging a desired dispensing amount. [Solution] It has a mounting cylinder 1 attached to the mouth of a container body in which contents are stored and a discharge hole for discharging the contents, and is movable in the vertical direction with respect to the mounting cylinder 1 and rotates in the circumferential direction. The mounting cylinder 1 includes a plurality of mounting cylinders arranged side by side in the circumferential direction and having different positions in the vertical direction. The push-down head has a contact part 15 and a get-over part 16 disposed adjacent to the contact part 15 in the circumferential direction, and the press-down head is configured to rotate the push-down head in the circumferential direction so that the get-over part 16 can be moved around the circumference. The restriction part has a restriction part that can be climbed over in the direction, and the restriction part is arranged to overlap with a predetermined contact part 15 among the plurality of contact parts 15 when viewed from above, and when the press-down head is pressed, It is brought into contact with the portion 15. [Selection diagram] Figure 3

Description

The present invention relates to a dispensing device.

BACKGROUND ART Conventionally, a discharger is known that is attached to the mouth of a container body in which contents are stored (for example, Patent Document 1). This type of dispenser has a mounting tube attached to the mouth of the container body, a discharge hole for discharging the contents, a push-down head that can move up and down with respect to the mounting barrel, and a push-down head that moves downward. and a pump that discharges the contents from the discharge hole.

Japanese Patent Application Publication No. 2002-035654

In this type of dispensing device, there has been a desire to switch the dispensing amount of the contents between a large amount and a small amount. However, with conventional dispensers, the user adjusts the amount of content dispensed by adjusting the amount by which the push-down head is pushed down, so it is difficult to stably dispense a constant amount (desired amount) of the content. difficult.

One of the objects of the present invention is to provide a dispensing device that can switch the discharge amount of contents and can stably discharge a desired discharge amount.

One aspect of the discharge device of the present invention has a mounting cylinder attached to the mouth of a container body in which contents are stored, and a discharge hole for discharging the contents, and is movable in the vertical direction with respect to the mounting cylinder. and a pump that discharges the contents from the discharge hole by downward movement of the press head, and the mounting cylinders are arranged side by side in the circumferential direction, The press-down head has a plurality of contact parts having different positions in the vertical direction, and a get-over part disposed adjacent to the contact parts in the circumferential direction, and the push-down head rotates the push-down head in the circumferential direction. In this case, there is provided a regulating part that can circumferentially get over the getting over part, and the regulating part is arranged to overlap with a predetermined one of the plurality of abutting parts when seen from above; When the push-down head is pressed down, it comes into contact with the predetermined contact portion.

In this ejector, when the user rotates the push-down head in the circumferential direction, the restriction section of the push-down head circumferentially overcomes the overpass section of the mounting tube. As a result, the regulating portion is arranged to face from above a predetermined contact portion adjacent to the overpass portion in the circumferential direction among the plurality of contact portions having different positions (heights) in the vertical direction. .

In this state, when the user presses down the push-down head, the content is discharged from the discharge hole by the action of the pump. Then, the restriction portion and the predetermined contact portion come into contact with each other, thereby restricting further downward movement of the push-down head and stopping the discharge of the contents.

According to the present invention, the amount of depression of the push-down head is determined according to the vertical position of the predetermined abutting portion with which the regulating portion of the push-down head comes into contact, and thereby the amount of content to be discharged is also determined. Specifically, the user rotates the push-down head in the circumferential direction, selects a predetermined abutting part from among a plurality of abutting parts having different heights in the vertical direction, and makes the desired contact part face the regulating part. The discharge amount can be selected. That is, the amount of content to be discharged can be switched between a large amount and a small amount.

A fixed amount (desired amount) of the contents can be stably discharged by a simple operation of pushing down the push-down head until the regulating portion and a predetermined contact portion come into contact with each other. That is, a desired amount of ejection can be stably ejected.

Furthermore, in the present invention, even if the user cannot visually see the state in which the regulating part and the predetermined abutting part are arranged facing each other from the outside of the ejector, when the push-down head is rotated, Since a click feeling is obtained when the restricting portion crosses over the overpassing portion, it is possible to easily recognize that the restricting portion and the predetermined abutting portion are disposed facing each other. Therefore, it is easy to operate.

In the above-mentioned discharge device, the mounting tube has a support wall extending in the circumferential direction, and the overpassing portion protrudes in the radial direction from the wall surface of the support wall and includes a band-shaped body extending in the circumferential direction and a wall surface of the support wall. It is preferable that the belt-shaped body has a lightened part disposed between the belt-shaped body and the belt-shaped body is elastically deformable in the radial direction.

In this case, when the user rotates the push-down head in the circumferential direction, the regulating portion rides over the overcoming portion while elastically deforming the band-shaped body of the overcoming portion in the radial direction. Since the hollowed out part is arranged between the wall surface of the support wall and the band-shaped body, the band-shaped body is elastically moved so as to narrow the radial dimension of the hollowed out part, that is, to approach the wall surface of the support wall. It is easily deformed. Since the regulating portion can stably overcome the overpassing portion, the operability of the push-down head when rotating is improved.

In the discharge device, the band-shaped body extends in a curved shape convex in the radial direction, and the contact portion has a side surface that protrudes in the radial direction from the wall surface of the support wall and faces in the circumferential direction. Preferably, the side surface extends along the curved shape of the band-shaped body when viewed from above and below, and is close to or coincides with the band-shaped body.

In this case, since the band-shaped body has a curved shape that is convex in the radial direction, the regulating portion can more stably overcome the overpassing portion. In addition, when molding the mounting tube by injection molding, the belt-shaped body (cross-over part) and the contact part can be molded using the upper mold and the lower mold without using a special structure in the mold, making manufacturing easier. It's easy.

In the discharger, the pump includes a cylindrical cylinder extending in the vertical direction, a valve body that switches communication and isolation between the inside of the cylinder and the inside of the container main body, and a valve body disposed inside the cylinder, and configured to press down the press-down head. Accordingly, a piston that is slidable in the vertical direction with respect to the cylinder, a pressure accumulating cylinder connected to the piston and having a cylindrical shape extending in the vertical direction and whose inside communicates with the inside of the cylinder, and a pressure accumulating cylinder disposed within the pressure accumulating cylinder. , a pressure accumulation piston that is slidable in the vertical direction with respect to the pressure accumulation cylinder, and a pressure accumulation valve body that contacts the pressure accumulation piston from below the pressure accumulation piston and switches communication and isolation between the inside of the pressure accumulation cylinder and the discharge hole. , a pressure accumulation urging member that urges the pressure accumulation piston downward, and when the internal pressure of the pressure accumulation cylinder increases due to depression of the push-down head, the pressure accumulation piston resists the urging force of the pressure accumulation urging member. It is preferable that the pressure accumulating cylinder be spaced upwardly from the accumulating valve body so that the inside of the accumulating cylinder and the discharge hole communicate with each other.

In this case, the pump is equipped with a so-called pressure accumulation mechanism. Specifically, when the user presses down on the push-down head, the piston moves downward within the cylinder, thereby increasing the internal pressure of the cylinder. Since the cylinder and the pressure accumulating cylinder are in communication with each other, as the internal pressure of the cylinder increases, the internal pressure of the pressure accumulating cylinder also increases.

The pressure accumulation piston is urged downward by the pressure accumulation urging member and is seated on the pressure accumulation valve body, thereby blocking communication between the inside of the pressure accumulation cylinder and the discharge hole. When the internal pressure of the pressure accumulation cylinder rises above a certain level due to the depression of the push-down head, the pressure accumulation piston moves upward against the biasing force of the pressure accumulation biasing member and separates upward from the pressure accumulation valve body. Thereby, the inside of the pressure accumulation cylinder and the discharge hole are communicated with each other, and the pressure accumulation cylinder and the contents stored in the cylinder are discharged from the discharge hole in a pressurized state.

In the pump configured as described above, by providing the pressure accumulation mechanism inside the piston, the diameter of the pressure accumulation biasing member can be reduced, so that the force applied to the upward movement of the pressure accumulation piston can be reduced. Therefore, since the pressure accumulating valve body is opened with a small force when the push-down head is pressed down, the pushing force (down force) is reduced.

Since the pressure accumulating piston moves upward at the initial stage of depression of the push-down head, the pushing force at the initial operation becomes small. Furthermore, since the user can press down as is, the pressing force is reduced as a user's tactile sensation. That is, the user can discharge a large amount of contents with a light pressing force, and the operability is good.
Specifically, by moving the pressure accumulating piston with lower sliding resistance before the piston with higher sliding resistance, the effect of reducing the downward force can be experienced.

According to the ejector of the aspect of the present invention, the amount of content to be ejected can be changed and a desired amount of ejection can be stably ejected.

FIG. 1 is a cross-sectional view (longitudinal cross-sectional view) showing the ejector of this embodiment. FIG. 2 is a cross-sectional view (cross-sectional view) taken along line II-II in FIG. 1, and illustration of the pump is omitted. FIG. 3 is a partially cutaway perspective view of the mounting tube. FIG. 4 is a partially cutaway perspective view of the mounting tube and the push-down head.

An ejector 10 according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharge device 10 of this embodiment is attached to the opening 101 of a container body 100 in which contents (not shown) are accommodated, and discharges the contents to the outside of the container body 100. That is, the discharge container shown in FIG. 1 includes a container body 100 and a discharger 10 attached to a mouth portion 101 of the container body 100. In this embodiment, the discharger 10 is removably attached to the opening 101 of the container body 100. The contents of the container body 100 are, for example, liquids such as cosmetics, medicines, fragrances, disinfectants, cleaning agents, and foods.

The discharger 10 includes a mounting tube 1 attached to the mouth 101 of the container body 100, a push-down head 2, and a pump 3. The mounting cylinder 1 and the push-down head 2 are made of resin, for example. The pump 3 includes, for example, a resin member and a metal member. The mouth portion 101 of the container body 100, the mounting cylinder 1, the push-down head 2, and the pump 3 are arranged coaxially with each other, with the pump shaft O, which is the central axis of the pump 3, being a common axis.

In this embodiment, the direction in which the pump shaft O extends, that is, the direction parallel to the pump shaft O is referred to as the up-down direction. In FIG. 1, the push-down head 2 and the mounting cylinder 1 are arranged side by side in the vertical direction. Among the vertical directions, the direction from the push-down head 2 toward the mounting tube 1 is called the downward direction (lower side), and the direction from the mounting tube 1 toward the push-down head 2 is called the upward direction (upper side).
The direction perpendicular to the pump axis O in a plan view from above and below is called the radial direction. In the radial direction, the direction approaching the pump axis O is called the radially inner side, and the direction away from the pump axis O is called the radially outer side.
The direction of rotation around the pump axis O is called the circumferential direction. In this embodiment, as shown in FIG. 2, when the discharge device 10 is viewed from above along the pump axis O, the clockwise direction around the pump axis O is called one side in the circumferential direction (+θ side). The counterclockwise direction is called the other circumferential side (-θ side).

The container body 100 has a cylindrical shape with a bottom, and in this embodiment, it has a cylindrical shape with a bottom. The container body 100 has a mouth portion 101, a body portion 102, a shoulder portion 103, and a bottom portion (not shown).
The mouth portion 101 has a cylindrical shape centered on the pump shaft O, and extends in the vertical direction. The mouth portion 101 is arranged at the upper end of the container body 100. The mouth part 101 has a male screw part 101a arranged on the outer peripheral surface of the mouth part 101.

In this embodiment, the mounting cylinder 1 as a whole has a double cylinder shape centered on the pump axis O. The mounting cylinder 1 includes a main body cylinder part 11 , an exterior cylinder part 12 , a connecting wall 13 , a support wall 14 , an abutting part 15 , and a crossing part 16 . In this embodiment, the mounting tube 1 is integrally formed from a single member.

The main body cylindrical portion 11 has a crested cylindrical shape centered on the pump shaft O. The main body cylindrical portion 11 has a cylindrical main body peripheral wall 11a and an annular plate-like main body top wall 11b.
The main body peripheral wall 11a has a female threaded portion 11c arranged on the inner peripheral surface of the main body peripheral wall 11a. The female threaded portion 11c is screwed onto the male threaded portion 101a of the mouth portion 101. That is, the mounting tube 1 is removably mounted on the mouth portion 101 by screwing.

The outer circumference of the main body top wall 11b is connected to the upper end of the main body peripheral wall 11a. The main body top wall 11b has an insertion hole 11d that vertically penetrates the main body top wall 11b. The insertion hole 11d has a circular hole shape centered on the pump shaft O.

The exterior cylindrical portion 12 is arranged on the radially outer side of the main body cylindrical portion 11 . The exterior cylinder part 12 has a cylindrical shape centered on the pump shaft O, and extends in the vertical direction. The exterior cylindrical portion 12 surrounds the main body cylindrical portion 11 from the outside in the radial direction over the entire circumference in the circumferential direction. Further, the exterior cylindrical portion 12 surrounds a support wall 14, which will be described later, over the entire circumference in the circumferential direction from the outside in the radial direction. The lower end portion of the exterior cylinder portion 12 is disposed opposite to the outer peripheral portion of the shoulder portion 103 of the container body 100 with a gap therebetween from above.

The connecting wall 13 has an annular plate shape centered on the pump axis O, and extends in a direction perpendicular to the pump axis O. The connecting wall 13 is arranged between the main body cylinder part 11 and the exterior cylinder part 12 in the radial direction, and connects these cylinder parts 11 and 12 to each other. Specifically, the inner circumferential portion of the connecting wall 13 is connected to the upper end portion of the outer circumferential surface of the main body cylindrical portion 11 . Further, the outer circumferential portion of the connecting wall 13 is connected to an intermediate portion of the inner circumferential surface of the exterior cylinder portion 12 located between both ends in the vertical direction.

The connecting wall 13 has a mold punching hole 13a that passes through the connecting wall 13 in the vertical direction. The mold punching hole 13a has a substantially semicircular shape when viewed from above and below. As shown in FIG. 3, a plurality of mold punching holes 13a are provided side by side in the circumferential direction. The lower mold (or upper mold) of the mold is inserted into these mold removal holes 13a during injection molding of the mounting cylinder 1, and is pulled out during mold release.

The support wall 14 is a curved wall portion extending in the circumferential direction. In this embodiment, the support wall 14 has a cylindrical shape centered on the pump shaft O. The support wall 14 has a thick portion 14a and a thin portion 14b having a smaller radial dimension (thickness) than the thick portion 14a. The outer circumferential surface of the thin portion 14b is located radially inward than the outer circumferential surface of the thick portion 14a. In this embodiment, a pair of thick portions 14a and a pair of thin portions 14b are provided. The thick portions 14a and the thin portions 14b are arranged alternately in the circumferential direction.

As shown in FIG. 1, the support wall 14 protrudes upward from the outer circumferential portion of the upper end of the main body cylindrical portion 11. As shown in FIG. In this embodiment, the support wall 14 is arranged so as to overlap the main body peripheral wall 11a of the main body cylindrical portion 11 when viewed from the vertical direction. That is, the main body peripheral wall 11a is arranged directly below the support wall 14. In this embodiment, the support wall 14 and the main body peripheral wall 11a are integrally formed so as to be continuous in the vertical direction. Therefore, a part (lower part) of the support wall 14 may be said to be constituted by the main body peripheral wall 11a.

As shown in FIGS. 2 and 3, a plurality of contact portions 15 are provided in the mounting tube 1. As shown in FIGS. The plurality of contact portions 15 are arranged side by side in the circumferential direction. The contact portion 15 is arranged between the support wall 14 and the exterior cylinder portion 12 in the radial direction. In this embodiment, the contact portion 15 is provided to protrude radially outward from the outer circumferential surface (wall surface) of the support wall 14 . Specifically, the contact portion 15 protrudes radially outward from the outer peripheral surface of the thin portion 14b.

The plurality of contact parts 15 includes a set of four contact parts 15A, 15B, 15C, and 15D arranged in the circumferential direction. In this embodiment, four pairs of abutting portions 15A, 15B, 15C, and 15D arranged in the circumferential direction are provided on each of the pair of thin portions 14b (that is, two pairs in total).

The four contact portions 15A, 15B, 15C, and 15D have different amounts of upward protrusion from the connecting wall 13. In other words, the vertical positions (heights) of the upper surfaces of these contact portions 15A, 15B, 15C, and 15D are different from each other. That is, the plurality of contact parts 15A, 15B, 15C, and 15D have different positions in the vertical direction.

More specifically, the four contact portions 15A, 15B, 15C, and 15D are lined up in this order toward one side in the circumferential direction (+θ side), and among these contact portions 15A, 15B, 15C, and 15D, the four contact portions in the circumferential direction The closer the item is located to one side, the lower the vertical position (height) is.

Specifically, among the four contact parts 15A, 15B, 15C, and 15D, the first contact part 15A located at the end on the other side in the circumferential direction (-θ side) is located at the uppermost position. , the fourth contact portion 15D located at the end on one side in the circumferential direction (+θ side) is located at the lowest position. Note that in this embodiment, the fourth contact portion 15D is configured by a part of the connecting wall 13. That is, the upper surface of the fourth contact portion 15D is constituted by a part of the upper surface of the connecting wall 13.

Further, among the four contact parts 15A, 15B, 15C, and 15D, the second contact part 15B adjacent to one side in the circumferential direction of the first contact part 15A is smaller than the first contact part 15A. A third contact portion 15C located below and adjacent to the second contact portion 15B on one side in the circumferential direction is located below the second contact portion 15B.
Moreover, a mold punching hole 13a is arranged between each of the circumferentially adjacent abutting portions 15A, 15B, 15C, and 15D.

Further, the contact portion 15 has a side surface 15g that projects in the radial direction from the wall surface of the support wall 14 and faces in the circumferential direction. In this embodiment, the side surface 15g protrudes radially outward from the outer peripheral surface (wall surface) of the support wall 14 and faces in the circumferential direction. Specifically, the side surface 15g extends toward the outer side in the radial direction so as to approach this contact portion 15 and another contact portion 15 adjacent to the contact portion 15 in the circumferential direction. More specifically, the side surface 15g facing one side in the circumferential direction (+θ side) extends toward the one side in the circumferential direction as it goes radially outward. Further, the side surface 15g facing the other side in the circumferential direction (-θ side) extends toward the other side in the circumferential direction as it goes radially outward. The side surface 15g has a concave curved shape concave toward the outside in the radial direction.
By providing such a side surface 15g, the circumferential dimension of the contact portion 15 increases as it goes radially outward.

A plurality of overpass portions 16 are provided in the mounting tube 1. The plurality of overpass portions 16 are arranged side by side in the circumferential direction. The crossover portion 16 is arranged between the support wall 14 and the exterior cylinder portion 12 in the radial direction. In this embodiment, the overpassing portion 16 is provided to protrude radially outward from the outer circumferential surface (wall surface) of the support wall 14 . Specifically, the overpass portion 16 protrudes radially outward from the outer circumferential surface of the thin portion 14b.

The plurality of overpass portions 16 include a set of three override portions 16 arranged in the circumferential direction. In this embodiment, three sets of overpassing portions 16 arranged in the circumferential direction are provided in each pair of thin wall portions 14b (that is, two sets in total).

Each over-over portion 16 overlaps with each mold punching hole 13a when viewed from the vertical direction. In this embodiment, each overpass portion 16 is arranged directly above each mold punching hole 13a. The crossing portion 16 is arranged adjacent to the contact portion 15 in the circumferential direction.

The over-over portion 16 includes a band-shaped body 16a that protrudes radially from the wall surface of the support wall 14 and extends in the circumferential direction, and a hollowed-out portion 16b that is arranged between the wall surface of the support wall 14 and the band-shaped body 16a.
In this embodiment, the band-shaped body 16a protrudes radially outward from the outer peripheral surface (wall surface) of the support wall 14 and extends in the circumferential direction. The band-shaped body 16a extends in a curved shape that is convex in the radial direction. In this embodiment, the band-shaped body 16a extends in a circular arc shape that is convex toward the outside in the radial direction. Both circumferential ends of the strip 16a are connected to the outer peripheral surface of the support wall 14. The strip 16a is elastically deformable in the radial direction. That is, the over-over portion 16 is elastically deformable.

The hollowed-out portion 16b has a hole shape that passes through the overpass portion 16 in the vertical direction. By providing the lightened portion 16b, a large amount of elastic deformation of the band-shaped body 16a is ensured. That is, the strip 16a elastically deforms inward in the radial direction so as to narrow the radial dimension of the hollowed out portion 16b.

As shown in FIG. 2, when viewed from the top and bottom, the abutting portion 15 is arranged without overlapping the overpassing portion 16. The side surface 15g of the contact portion 15 extends along the curved shape of the strip 16a when viewed from the top and bottom, and is close to or coincides with the strip 16a.

As shown in FIG. 1, the push-down head 2 is arranged above the mounting tube 1. The push-down head 2 is provided so as to be movable in the vertical direction and rotatable in the circumferential direction with respect to the mounting cylinder 1 . The push-down head 2 has an inner cylinder 21, an outer cylinder 22, a regulating part 23, a nozzle part 24, and a discharge hole 25 for discharging the contents.

The outer cylinder 22 has a cylindrical shape with a crest centered on the pump axis O, and in this embodiment has a cylindrical shape with a crest. The outer cylinder 22 has a cylindrical peripheral wall 22a and a disk-shaped top wall 22b. The peripheral wall 22a is arranged between the support wall 14 and the exterior cylinder portion 12 in the radial direction. When the user presses down the push-down head 2, the peripheral wall 22a moves downward between the support wall 14 and the exterior cylinder part 12.

The inner cylinder 21 has a cylindrical shape centered on the pump shaft O, and extends in the vertical direction. In this embodiment, the inner cylinder 21 has a cylindrical shape. The inner cylinder 21 is suspended from the top wall 22b of the outer cylinder 22.

The nozzle portion 24 has a substantially cylindrical shape extending in the radial direction. In this embodiment, the nozzle portion 24 extends along the lower surface of the top wall 22b of the outer cylinder 22. A radially inner end of the nozzle portion 24 is connected to the inner cylinder 21 . The inside of the nozzle portion 24 communicates with the inside of the inner cylinder 21 . A radially outer end portion of the nozzle portion 24 is connected to the circumferential wall 22a of the outer tube 22, and passes through the circumferential wall 22a in the radial direction. A discharge hole 25 is arranged at a radially outer end of the nozzle portion 24 . The discharge hole 25 is opened radially outward and communicates with the inside of the nozzle portion 24 .

The nozzle section 24 has a function of changing the liquid contents into desired properties. Specifically, the nozzle portion 24 changes the contents into a mist, spray, foam, etc., and discharges the contents from the discharge hole 25, for example. However, the present invention is not limited to this, and the nozzle section 24 may discharge the contents in liquid form from the discharge hole 25.

As shown in FIGS. 1, 2, and 4, the restricting portion 23 protrudes radially inward from the inner peripheral surface of the peripheral wall 22a of the outer cylinder 22. As shown in FIGS. The regulating portion 23 has a rib shape that extends in the vertical direction. In this embodiment, the surface of the regulating portion 23 (the surface facing radially inward) has a curved shape that is convex radially inward.

A plurality of regulating portions 23 are provided on the push-down head 2 . In the present embodiment, a pair of restricting portions 23 are provided so as to face each other in a pair of thin wall portions 14b of the support wall 14. The number of regulating parts 23 is the same as the number of sets of four contact parts 15A, 15B, 15C, 15D arranged in the circumferential direction, and the same as the number of sets of three overpassing parts 16 arranged in the circumferential direction. be.

The regulating portion 23 can circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially surmountable overpassing portion 16 by rotating press-down head 2 in the circumferential direction. Specifically, in FIG. 2, the regulating portion 23 moves in the circumferential direction together with the push-down head 2 by rotating the push-down head 2 in the circumferential direction, and elastically deforms the strip-shaped body 16a inward in the radial direction, while elastically deforming the strip-shaped body 16a. It is said that it is possible to climb over in the circumferential direction.

Moreover, as shown in FIG. 2, the regulating portion 23 is arranged to overlap with a predetermined contact portion 15 among the plurality of contact portions 15A, 15B, 15C, and 15D when viewed from above. The regulating portion 23 is brought into contact with a predetermined contact portion 15 when the pressing head 2 is pressed down.

Specifically, in the example shown in FIG. 2, the restricting portion 23 is arranged to overlap the second contact portion 15B when viewed from above. Further, when the user rotates the push-down head 2 in the circumferential direction, the regulating portion 23 climbs over the overpassing portion 16 and is arranged to overlap with any one of the first to fourth contact portions 15A to 15D when viewed from above. be done. That is, by rotating the push-down head 2 in the circumferential direction, one contact portion 15 (predetermined contact portion 15) selected from the first to fourth contact portions 15A to 15D, The regulating portions 23 are arranged to face each other.

Further, in the example shown in FIG. 4, by pressing down the push-down head 2 and moving it downward, the regulating portion 23 (lower surface) is brought into contact with the third contact portion 15C (upper surface). That is, when the push-down head 2 is pressed down, the regulating portion 23 is brought into contact with one contact portion 15 (predetermined contact portion 15) selected from the first to fourth contact portions 15A to 15D. Ru.

When the restricting portion 23 comes into contact with the predetermined contact portion 15, further downward movement of the push-down head 2 is restricted. Therefore, depending on the vertical position of the predetermined abutting portion 15 that the regulating portion 23 abuts, the amount by which the push-down head 2 is pressed down is determined to be constant, and thereby the amount of content to be discharged is also determined to be constant.

Specifically, in this embodiment, the vertical positions (heights) of the first to fourth contact portions 15A to 15D are lowered in this order. Therefore, the amount of depression of the push-down head 2 increases in the order of the first to fourth contact parts 15A to 15D, depending on the contact part 15 with which the restriction part 23 is brought into contact. In other words, the amount of content discharged by pressing down the push-down head 2 increases in the order of the first to fourth contact parts 15A to 15D, depending on the contact part 15 with which the regulating part 23 is brought into contact.

Specifically, in this embodiment, depending on which of the first to fourth contact parts 15A to 15D the contact part 15 with which the regulating part 23 contacts, the discharge amount of the contents is as follows. It is set as follows.
- When the regulating part 23 contacts the first contact part 15A...Discharge amount: 0 (zero)
- When the regulating part 23 comes into contact with the second abutting part 15B... Discharge amount: low - When the regulating part 23 abuts the third abutting part 15C... Discharge quantity: medium - When the regulating part 23 comes into contact with the fourth When contacting the contact part 15D... Discharge amount: large

In addition, when the regulating part 23 contacts the first contact part 15A, the content is not discharged (that is, the downward movement of the push-down head 2 is regulated from the beginning). Therefore, among the plurality of contact parts 15A to 15D, the first contact part 15A located at the uppermost position functions as a stopper that restricts the push-down head 2 from being pressed down.

The pump 3 discharges the contents from the discharge hole 25 by moving the push-down head 2 downward. The pump 3 of this embodiment includes a so-called pressure accumulation mechanism that can forcefully discharge the contents from the discharge hole 25 in a pressurized state.

As shown in FIG. 1, the pump 3 includes a cylinder 31, a suction tube 32, a valve body 33, an annular member 34, a stem 35, a biasing member 36, a piston 37, a pressure accumulating cylinder 38, It includes a pressure accumulation piston 39, a pressure accumulation valve body 40, and a pressure accumulation urging member 41.

The cylinder 31 is arranged radially inside the mouth 101. The cylinder 31 has a cylindrical shape extending in the vertical direction. Specifically, the cylinder 31 has a bottomed cylindrical shape centered on the pump axis O.

Cylinder 31 has a flange 31a. The flange 31a has an annular plate shape centered on the pump shaft O. The flange 31a extends radially outward from the upper end of the peripheral wall of the cylinder 31. The flange 31a, together with the annular packing 42, is held between the upper end opening of the mouth portion 101 and the main body top wall 11b from the vertical direction.

The suction tube 32 is suspended from the bottom wall of the cylinder 31. The suction tube 32 has a cylindrical shape that extends in the vertical direction. The inside of the container body 100 and the inside of the cylinder 31 are communicated with each other through the inside of the suction cylinder 32.

The valve body 33 is a spherical member. The valve body 33 is seated on a seating portion 32a formed in the suction tube 32 from above the seating portion 32a. Further, the valve body 33 is provided so as to be able to be separated upwardly from the seating portion 32a. When the valve body 33 contacts the seating portion 32a, communication between the inside of the cylinder 31 and the inside of the container body 100 is cut off. Moreover, the inside of the cylinder 31 and the inside of the container main body 100 are communicated with each other by separating the valve body 33 from the seating portion 32a. That is, the valve body 33 switches communication and isolation between the inside of the cylinder 31 and the inside of the container body 100.
Although not particularly illustrated, an elastic valve such as a so-called three-point valve, which is configured to be able to be separated upwardly from the seating portion 32a by elastic deformation, may be used as the valve body 33.

The annular member 34 has an annular shape centered on the pump axis O. The annular member 34 fits within the upper end opening of the peripheral wall of the cylinder 31 . The annular member 34 is restrained from moving in the vertical direction by having its brim-shaped outer peripheral portion sandwiched and held between the flange 31a and the main body top wall 11b from above and below.

The stem 35 is fixed to the push-down head 2. The stem 35 includes a stem cylindrical portion 35a that fits into the inner cylinder 21 of the push-down head 2, and a biasing member holding cylindrical portion 35b connected to the stem cylindrical portion 35a.

The stem cylinder portion 35a has a substantially cylindrical shape centered on the pump shaft O, and extends in the vertical direction. The biasing member holding cylindrical portion 35b has a substantially double cylindrical shape centered on the pump shaft O, and is arranged on the radially outer side of the stem cylindrical portion 35a. The inner circumferential surface of the biasing member holding cylindrical portion 35b and the outer circumferential surface of the stem cylindrical portion 35a are connected to each other by a plurality of connection pieces disposed between them and aligned in the circumferential direction.

The biasing member 36 is, for example, an elastically deformable compression coil spring or the like, and expands and contracts in the vertical direction. The lower end of the biasing member 36 contacts the annular member 34 from above, and the upper end of the biasing member 36 contacts the biasing member holding cylindrical portion 35b from below. The biasing member 36 biases the push-down head 2 upward via the stem 35.

The piston 37 has an annular or cylindrical shape centered on the pump axis O. The piston 37 is disposed within the cylinder 31 and can slide vertically with the cylinder 31 as the push-down head 2 is pushed down. The piston 37 is disposed below the annular member 34 and overlaps with the annular member 34 when viewed from above and below.

The pressure accumulating cylinder 38 has a cylindrical shape centered on the pump shaft O, and extends in the vertical direction. The pressure accumulation cylinder 38 is disposed above the piston 37 and is connected to the piston 37. In this embodiment, the pressure accumulation cylinder 38 and the piston 37 are integrally formed from a single member. The inside of the pressure accumulation cylinder 38 communicates with the inside of the cylinder 31. The pressure accumulating cylinder 38 is disposed radially inside the annular member 34 and is provided by vertically penetrating the annular member 34 .

The pressure accumulating cylinder 38 has a smaller outer diameter than the piston 37. For this reason, the pump 3 of this embodiment includes a pressure accumulating mechanism provided inside the piston 37 (radially inside). The pressure accumulation mechanism includes a pressure accumulation cylinder 38, a pressure accumulation piston 39, a pressure accumulation valve body 40, and a pressure accumulation biasing member 41.

The pressure accumulating piston 39 has a cylindrical shape centered on the pump shaft O, and extends in the vertical direction. The pressure accumulation piston 39 is disposed within the pressure accumulation cylinder 38 and is slidable in the pressure accumulation cylinder 38 in the vertical direction. Specifically, the large diameter portion located below of the pressure accumulating piston 39 slides on the inner circumferential surface of the pressure accumulating cylinder 38 . The upper small diameter portion of the pressure accumulating piston 39 is inserted into the lower end opening of the stem cylinder portion 35a.

The pressure accumulation valve body 40 has a columnar shape centered on the pump shaft O, and extends in the vertical direction. The pressure accumulation valve body 40 is arranged across the interior of the stem cylinder portion 35a, the interior of the pressure accumulation piston 39, and the interior of the pressure accumulation cylinder 38. The upper end portion of the pressure accumulation valve body 40 is fixed to the inner peripheral portion of the stem cylinder portion 35a by engagement or the like. The pressure accumulation valve body 40 guides the movement of the pressure accumulation piston 39 in the vertical direction.

The inside of the pressure accumulating cylinder 38 and the discharge hole 25 are the inside of the pressure accumulating piston 39, the inside of the stem cylindrical part 35a, the communication groove 35c formed in the inner peripheral part of the stem cylindrical part 35a, the inside of the inner cylinder 21, and They communicate with each other via the nozzle section 24.

Moreover, the pressure accumulation valve body 40 has a pressure accumulation seat portion 40a. The pressure accumulator piston 39 is seated on the pressure accumulator seat 40a from above the pressure accumulator seat 40a. Further, the pressure accumulating piston 39 is provided so as to be able to be separated upwardly from the pressure accumulating seat 40a. When the pressure accumulation piston 39 comes into contact with the pressure accumulation seat 40a, communication between the inside of the pressure accumulation cylinder 38 and the discharge hole 25 is cut off. Moreover, the pressure accumulation piston 39 is spaced apart from the pressure accumulation seating portion 40a, so that the inside of the pressure accumulation cylinder 38 and the discharge hole 25 are communicated with each other. That is, the pressure accumulation valve body 40 (the pressure accumulation seat portion 40a thereof) contacts the pressure accumulation piston 39 from below the pressure accumulation piston 39, and switches communication and isolation between the pressure accumulation cylinder 38 and the discharge hole 25.

The pressure accumulation biasing member 41 is, for example, an elastically deformable compression coil spring or the like, and expands and contracts in the vertical direction. The pressure accumulation biasing member 41 is arranged within the pressure accumulation cylinder 38 . The lower end of the pressure accumulation biasing member 41 contacts a stepped portion provided on the outer circumference of the pressure accumulation piston 39 from above. The upper end portion of the pressure accumulation biasing member 41 contacts a step portion provided on the outer peripheral portion of the stem cylinder portion 35a from below. The pressure accumulation urging member 41 presses the pressure accumulation piston 39 against the pressure accumulation seating portion 40a by urging the pressure accumulation piston 39 downward.

In the pump 3 configured as described above, when the internal pressure of the pressure accumulation cylinder 38 rises due to depression of the push-down head 2, the pressure accumulation piston 39 resists the urging force of the pressure accumulation urging member 41 and presses the pressure accumulation valve body 40. It is spaced upward from the pressure accumulating seat portion 40a, and the inside of the pressure accumulating cylinder 38 and the discharge hole 25 communicate with each other.

More specifically, when the user presses down the push-down head 2, the piston 37 moves downward within the cylinder 31, thereby increasing the internal pressure of the cylinder 31. Since the cylinder 31 and the pressure accumulating cylinder 38 communicate with each other internally, as the internal pressure of the cylinder 31 increases, the internal pressure of the pressure accumulating cylinder 38 also increases.

The pressure accumulation piston 39 is urged downward by the pressure accumulation urging member 41 and is seated on the pressure accumulation valve body 40, thereby blocking communication between the inside of the pressure accumulation cylinder 38 and the discharge hole 25. When the internal pressure of the pressure accumulation cylinder 38 rises above a certain level due to the push-down of the push-down head 2, the pressure accumulation piston 39 moves upward against the urging force of the pressure accumulation urging member 41, and is separated upward from the pressure accumulation valve body 40. . Thereby, the inside of the pressure accumulation cylinder 38 and the discharge hole 25 are communicated with each other, and the contents stored in the pressure accumulation cylinder 38 and the cylinder 31 are discharged from the discharge hole 25 in a pressurized state.

Further, when the user releases the push-down operation of the push-down head 2, the piston 37 moves upward together with the push-down head 2 due to the upward biasing force of the biasing member 36. As a result, the inside of the cylinder 31 becomes negative pressure, the valve body 33 is separated upward from the seating part 32a, and the contents of the container body 100 flow into the cylinder 31 through the inside of the suction tube 32.

In the ejector 10 of the present embodiment described above, when the user rotates the push-down head 2 in the circumferential direction, the regulating section 23 of the push-down head 2 circumferentially overcomes the overpass section 16 of the mounting tube 1. As a result, the regulating portion 23 is directed against a predetermined abutting portion 15 adjacent to the overpassing portion 16 in the circumferential direction among a plurality of abutting portions 15 (15A to 15D) having different vertical positions (heights). They are placed facing each other from above.

In this state, when the user presses down the push-down head 2, the content is discharged from the discharge hole 25 by the action of the pump 3. When the regulating portion 23 and the predetermined abutting portion 15 come into contact with each other, further downward movement of the push-down head 2 is regulated, and the discharge of the contents is stopped.

According to this embodiment, the amount of depression of the push-down head 2 is determined according to the vertical position of the predetermined contact portion 15 that the regulation portion 23 of the push-down head 2 comes into contact with, and the amount of content discharged is thereby also determined. It's decided. Specifically, the user rotates the push-down head 2 in the circumferential direction, selects a predetermined contact part 15 from among a plurality of contact parts 15 (15A to 15D) having different heights in the vertical direction, and performs regulation. By facing the portion 23, a desired discharge amount can be selected. In other words, the amount of content to be discharged can be switched between a large amount and a small amount (in this embodiment, either a large amount, a medium amount, or a small amount).

A fixed amount (desired amount) of the contents can be stably discharged by a simple operation of pushing down the push-down head 2 until the regulating portion 23 and the predetermined contact portion 15 come into contact with each other. That is, a desired amount of ejection can be stably ejected.
In this embodiment, it is also possible to select a discharge amount of zero (stopper function of the push-down head 2).

Furthermore, in the present embodiment, even if the user cannot visually see the state in which the regulating portion 23 and the predetermined abutting portion 15 are disposed facing each other from the outside of the ejector 10, the push-down head 2 can be moved. When rotated, the restricting portion 23 overcomes the overpassing portion 16 and a click feeling is obtained, so that the state in which the restricting portion 23 and the predetermined contact portion 15 are disposed opposite to each other can be easily recognized. Therefore, it is easy to operate.

Further, in this embodiment, the overpassing portion 16 includes a band-shaped body 16a that protrudes radially from the wall surface of the support wall 14 and extends in the circumferential direction, and a hollowed-out portion disposed between the wall surface of the support wall 14 and the band-shaped body 16a. 16b, and the band-shaped body 16a is elastically deformable in the radial direction.
In this case, when the user rotates the push-down head 2 in the circumferential direction, the regulating portion 23 rides over the overcoming portion 16 while elastically deforming the band-like body 16a of the overcoming portion 16 in the radial direction. Since the hollowed out part 16b is arranged between the wall surface of the support wall 14 and the band-shaped body 16a, the band-shaped body 16a is arranged on the wall surface of the support wall 14 so as to narrow the radial dimension of the hollowed out part 16b. It is made easy to elastically deform as it approaches. Since the regulating portion 23 can stably overcome the overpassing portion 16, the operability of the push-down head 2 during rotation is improved.

Further, in this embodiment, the band-shaped body 16a extends in a curved shape that is convex in the radial direction. Further, the side surface 15g of the contact portion 15 extends along the curved shape of the strip 16a when viewed from the top and bottom, and is close to or coincides with the strip 16a.
In this case, since the band-shaped body 16a has a curved shape convex in the radial direction, the restricting portion 23 can more stably overcome the overpassing portion 16. Furthermore, when molding the mounting cylinder 1 by injection molding, the belt-shaped body 16a (cross-over portion 16) and the contact portion 15 can be molded using an upper mold and a lower mold without using a special structure for the mold. It is easy to manufacture.

Further, in this embodiment, the pump 3 includes a so-called pressure accumulating mechanism. In the pump 3 configured as described above, by providing the pressure accumulation mechanism inside the piston 37, the diameter of the pressure accumulation biasing member 41 can be reduced, so that the force applied to the upward movement of the pressure accumulation piston 39 can be reduced. can. Therefore, since the pressure accumulation valve body 40 is opened with a small force when the push-down head 2 is pressed down, the pushing force (down force) is reduced.

Since the pressure accumulating piston 39 moves upward at the initial stage of depression of the push-down head 2, the pushing force at the initial movement of the operation becomes small. Furthermore, since the user can press down as is, the pressing force is reduced as a user's tactile sensation. That is, the user can discharge a large amount of contents with a light pressing force, and the operability is good.
Specifically, the pressure accumulating piston 39, which has a lower sliding resistance, moves before the piston 37, which has a higher sliding resistance, so that a tactile effect of reducing the downward force can be obtained.

Note that the present invention is not limited to the above-described embodiments, and the configuration can be changed, for example, as described below, without departing from the spirit of the present invention.

In the embodiment described above, an example was given in which the support wall 14 has a cylindrical shape, but the support wall 14 is not limited to this. The support wall 14 only needs to extend in the circumferential direction, and may be, for example, a curved wall that is not annular.

The band-like body 16a of the overpassing portion 16 is not limited to a configuration in which it projects radially outward from the outer circumferential surface (wall surface) of the support wall 14, but may protrude radially inward from the inner circumferential surface (wall surface) of the support wall 14. . Further, the contact portion 15 is not limited to a configuration in which it projects radially outward from the outer circumferential surface (wall surface) of the support wall 14 , but may protrude radially inward from the inner circumferential surface (wall surface) of the support wall 14 . In this case, the peripheral wall 22a of the outer cylinder 22 of the push-down head 2 is arranged radially inside the support wall 14. Further, the restricting portion 23 of the push-down head 2 protrudes radially outward from the outer peripheral surface of the peripheral wall 22a of the outer cylinder 22.

Further, the pump 3 is not limited to the one provided with the pressure accumulating mechanism described above.

In addition, the components in the embodiments described above can be replaced with known components as appropriate without departing from the spirit of the present invention, and the embodiments and modifications described above may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1...Mounting tube, 2...Pushing head, 3...Pump, 10...Discharge device, 14...Supporting wall, 15 (15A to 15D)...Abutment part, 15g...Side surface, 16...Climb over part, 16a...Band-shaped body, 16b ... Lightening part, 23... Regulation part, 25... Discharge hole, 31... Cylinder, 33... Valve body, 36... Biasing member, 37... Piston, 38... Pressure accumulating cylinder, 39... Pressure accumulating piston, 40... Pressure accumulating valve body, 41... Pressure accumulation biasing member, 100... Container body, 101... Mouth part

Claims (4)

a mounting tube attached to the mouth of the container body in which the contents are accommodated;
a press-down head that has a discharge hole for discharging the contents and is provided to be movable in the vertical direction and rotatable in the circumferential direction with respect to the mounting cylinder;
a pump that discharges the contents from the discharge hole by downward movement of the push-down head,
The mounting tube is
a plurality of abutting portions that are arranged side by side in the circumferential direction and have mutually different positions in the vertical direction;
a step-over portion disposed adjacent to the contact portion in the circumferential direction;
The push-down head has a restriction portion that allows the push-down head to circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially circumferentially surmount the overpass portion;
The regulating portion is arranged to overlap with a predetermined one of the plurality of abutting portions when viewed from above, and comes into contact with the predetermined abutting portion when the push-down head is pressed.
Dispenser. The mounting tube has a support wall extending in the circumferential direction,
The crossing section is
a band-shaped body that protrudes radially from the wall surface of the support wall and extends in the circumferential direction;
a hollowed out portion disposed between the wall surface of the support wall and the band-shaped body;
The band-shaped body is elastically deformable in the radial direction.
The dispenser according to claim 1. The band-like body extends in a curved shape convex in the radial direction,
The contact portion has a side surface that protrudes in the radial direction from the wall surface of the support wall and faces in the circumferential direction,
The side surface extends along the curved shape of the band-shaped body when viewed from the top and bottom, and is close to or coincides with the band-shaped body.
The dispenser according to claim 2. The pump is
A cylindrical cylinder extending vertically,
a valve body that switches communication and isolation between the inside of the cylinder and the inside of the container body;
a piston disposed within the cylinder and capable of sliding vertically with the cylinder as the push-down head is pushed down;
a pressure accumulating cylinder connected to the piston, having a cylindrical shape extending in the vertical direction, and having an interior communicating with the inside of the cylinder;
a pressure accumulation piston disposed within the pressure accumulation cylinder and capable of sliding vertically with the pressure accumulation cylinder;
a pressure accumulation valve body that contacts the pressure accumulation piston from below the pressure accumulation piston and switches communication and isolation between the inside of the pressure accumulation cylinder and the discharge hole;
a pressure accumulation urging member that urges the pressure accumulation piston downward;
When the internal pressure of the pressure accumulation cylinder increases due to the push-down of the push-down head, the pressure accumulation piston is separated upward from the pressure accumulation valve body against the biasing force of the pressure accumulation biasing member, and the pressure accumulation cylinder and the communicates with the discharge hole,
The ejector according to any one of claims 1 to 3.

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