JP5337571B2 - Dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the solidification and dripping of contents inside a horizontal cylinder by reducing contents that remain inside the horizontal cylinder after discharge. <P>SOLUTION: The discharge device 10 includes a pump 12 with a stem 11 erected so as to be moved downward in an upward energizing state, and a pressing head 16 with a mounting cylinder 13 mounted on the upper end part of the stem and communicated with the inside of the stem and the horizontal cylinder 15 projected to the outer side on the mounting cylinder, communicated with the inside of the mounting cylinder and having a discharge hole 14 formed at the distal end part, and by pressing the pressing head, moving the stem downward and operating the pump in the state of being mounted on the port part 51 of a container body 50, the contents inside the container body are transferred and discharged from the discharge hole through the inside of the horizontal cylinder. The pressing head includes a head body 35 having the mounting cylinder and the horizontal cylinder and a pressing member 36 disposed to the head body so as to be moved downward and moved upward to be restored. The pressing member is provided with a movable plate 38 disposed inside the horizontal cylinder. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a dispenser.

Conventionally, as a discharger, a pump having a stem standing upwardly in an upward biased state, a mounting cylinder that is mounted on the upper end of the stem and communicates with the inside of the stem, and a peripheral wall portion of the mounting cylinder A configuration is known that includes a pressing head that has a horizontal cylinder that protrudes outward and communicates with the inside of the mounting cylinder and that has a discharge hole at the tip. In this discharge device, the contents in the container body are transferred by pressing the pressing head to move the stem downward and operating the pump in a state where it is attached to the mouth of the container body containing the contents. Then, it is discharged from the discharge hole through the horizontal cylinder.
However, this type of discharger has a problem that the contents remain in the horizontal cylinder after discharge and the contents are solidified in the horizontal cylinder. In addition, there is a problem that the liquid remaining in the horizontal cylinder unexpectedly leaks from the discharge hole.
Therefore, as this type of discharger, for example, as shown in Patent Document 1 below, a nozzle closing member that closes the discharge hole is provided, and the pressing head has two upper and lower members, an upper head portion and a lower head portion. There is known a configuration in which the discharge hole is closed by the nozzle closing member when the upper head portion is divided, and the discharge hole is closed by the nozzle closing member by releasing the pressing.
According to this discharger, it becomes possible to suppress the contents remaining in the horizontal cylinder from coming into contact with the outside air through the discharge holes, and it is possible to suppress the contents from solidifying in the horizontal cylinder and to discharge the contents. Later, dripping can be suppressed.

JP 2008-162671 A

By the way, since a discharger is used in the environment which changes with uses, it is desired that the structure of a discharger is a thing according to the use environment of the discharger. For this reason, it is desirable that the structure for suppressing the solidification and dripping of the contents in the horizontal cylinder as described above should be diverse so that the one corresponding to the use environment of the discharger can be adopted for each discharger. Yes.
Here, as a means for suppressing solidification and dripping of the contents in the horizontal cylinder, it is conceivable to reduce the contents remaining in the horizontal cylinder after discharging.

  The present invention has been made in view of the above-described circumstances, and its object is to suppress the solidification and dripping of the contents in the horizontal cylinder by reducing the contents remaining in the horizontal cylinder after discharging. It is to provide a pressing head that can do this.

In order to solve the above problems, the present invention proposes the following means.
A dispenser according to the present invention includes a pump having a stem standing upright so as to be movable downward in an upward biased state, a mounting cylinder mounted on the upper end of the stem and communicating with the inside of the stem, and a peripheral wall of the mounting cylinder And a pressing head having a horizontal cylinder projecting outwardly from the mounting part and communicating with the inside of the mounting cylinder and having a discharge hole formed at the tip thereof, and the mouth of the container body containing the contents When the pump is operated by depressing the pressing head to move the stem downward and operating the pump, the contents in the container are transferred and discharged from the discharge hole through the horizontal cylinder. The press head includes a head main body having the mounting cylinder and the horizontal cylinder, and a press member disposed so as to be movable downward with respect to the head main body and to be restored and movable upward. The press Member comprises a movable plate which is disposed in the transverse cylinder, the upper surface of the movable plate, before the pressing member is pressed, characterized in that in contact with the inner surface of the lateral tube.

  In this invention, since the pressing member includes the movable plate disposed in the horizontal cylinder, the movable plate is moved in the vertical direction with respect to the head body of the pressing member when the pressing member is pressed and when the pressing is released. Along with the movement, it is moved downward and upward in the horizontal cylinder. Accordingly, when the pressing member is pressed and the content is discharged from the discharge hole and then the pressing is released, the movable plate moved downward in the horizontal cylinder by the pressing moves upward. The content remaining in the cylinder is sandwiched between the movable plate that moves upward and the inner surface of the horizontal cylinder that faces the upper surface of the movable plate, and is discharged from the discharge hole. Therefore, it becomes possible to reduce the content remaining in the horizontal cylinder after discharging, and it is possible to suppress solidification and dripping of the content in the horizontal cylinder.

In addition , since the upper surface of the movable plate is in contact with the inner surface of the horizontal cylinder, the movable plate is moved to the horizontal surface by releasing the pressing after pressing the pressing member to discharge the contents from the discharge hole. It moves upward until it contacts the inner surface of the cylinder. Accordingly, it is possible to reliably reduce the contents remaining between the upper surface of the movable plate and the inner surface of the horizontal cylinder, and it is possible to reliably reduce the contents remaining in the horizontal cylinder after ejection.

  The pump includes a liquid cylinder in which a liquid piston slides, an air cylinder in which an air piston slides, contents from the liquid cylinder, and air from the air cylinder. A gas-liquid mixing chamber for mixing the contents, and a foaming member for foaming the contents mixed in the gas-liquid mixing chamber and air, and operating the pump in a state of being attached to the mouth of the container body Thus, the contents in the liquid cylinder and the air in the air cylinder are compressed, the contents and air are transferred to the gas-liquid mixing chamber, mixed, and foamed by the foaming member. You may be set as the structure discharged from the said discharge hole through the inside of a cylinder.

  In this case, since the contents transferred into the horizontal cylinder are in the form of bubbles, for example, the contents are more likely to remain in the horizontal cylinder than in the case where the contents are mere liquid. It will be remarkably successful.

  According to the discharger according to the present invention, the content remaining in the horizontal cylinder after discharge can be reduced to suppress the solidification and dripping of the content in the horizontal cylinder.

It is a longitudinal cross-sectional view of the discharger which concerns on one Embodiment of this invention. It is a figure which shows the state which pressed down the pressing member in the discharger shown in FIG. It is a figure which shows the state which cancelled | released pressing of the pressing member in the discharge device shown in FIG. It is a longitudinal cross-sectional view of the principal part in the discharger of the modification which concerns on one Embodiment of this invention.

Hereinafter, a dispenser according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharger 10 includes a pump 12 having a stem 11 erected so as to be movable downward in an upward biased state, and a mounting cylinder that is attached to the upper end of the stem 11 and communicates with the inside of the stem 11. 13 and a pressing head 16 having a horizontal cylinder 15 projecting outwardly from the peripheral wall portion of the mounting cylinder 13 and communicating with the inside of the mounting cylinder 13 and having a discharge hole 14 formed at the tip. I have. Further, in the present embodiment, the dispenser 10 includes a mounting cap 17 that is attached to the mouth 51 of the container body 50 in which the contents are stored, and a pressing restriction member 18 that restricts pressing of the pressing head 16. ing.

Then, in a state where the discharge device 10 is attached to the mouth portion 51 of the container body 50, the contents in the container body 50 are actuated by pressing the pressing head 16 to move the stem 11 downward and operating the pump 12. Is transferred and discharged from the discharge hole 14 through the inside of the horizontal cylinder 15. Furthermore, in this embodiment, the discharger 10 is discharged from the discharge hole 14 through the horizontal cylinder 15 after the contents and air are mixed and foamed by operating the pump 12 as described above. It is a so-called former pump.
Here, the central axes of the stem 11 and the mounting cap 17 are located on a common axis. Hereinafter, this common axis is referred to as the central axis O, the pressing head 16 side along the central axis O direction (up and down direction) is referred to as the upper side, the bottom side (not shown) of the container body 50 is referred to as the lower side, and is orthogonal to the central axis O. 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 17 includes a ceiling wall portion 21 having a circular opening at the center, a peripheral wall portion 22 extending downward from the outer peripheral edge of the ceiling wall portion 21, and the opening in the ceiling wall portion 21. And a guide tube portion 23 that extends coaxially with the guide tube portion 23. An internal thread portion is formed on the inner peripheral surface of the peripheral wall portion 22, and the mounting cap 17 is attached to the container body 50 by screwing the internal thread portion into an external thread portion formed in the mouth portion 51 of the container body 50. Installed.

  The pump 12 includes a liquid piston 24 attached to the lower end of the stem 11, a liquid cylinder 25 in which the liquid piston 24 slides, and an air slidably attached to the peripheral wall portion of the stem 11. The piston 26, the air cylinder 27 in which the air piston 26 slides, the gas-liquid mixing chamber 28 for mixing the contents from the liquid cylinder 25 and the air from the air cylinder 27, and this gas-liquid mixing And a foaming member 29 for foaming the contents mixed in the chamber 28 and air.

The stem 11 is disposed on the inner side in the radial direction of the mounting cap 17, has an upper end positioned inside the guide tube portion 23 of the mounting cap 17, and a lower end positioned below the lower end of the mounting cap 17. Yes.
The liquid piston 24 is a cylindrical body disposed coaxially with the central axis O on the inside of the stem 11, and the upper side is a small diameter portion 24 a and the lower side is a large diameter portion 24 b, and the small diameter portion 24 a is a stem. 11, the large diameter portion 24b protrudes downward from the opening surface of the lower end of the stem 11, and the outer peripheral surface thereof is in sliding contact with the inner peripheral surface of the liquid cylinder 25.

  The air piston 26 includes a multi-stage cylindrical outer cylinder 26a, an inner cylinder 26b disposed inside the outer cylinder 26a, and an outer peripheral surface of the inner cylinder 26b so as to fit between the outer cylinder 26a and the inner cylinder 26b. And a valve body 26c that opens and closes a gap therebetween. The stem 11 is inserted into the inner cylinder 26b so as to be slidable up and down. The outer cylinder 26a and the inner cylinder 26b are disposed coaxially with the central axis O.

  The liquid cylinder 25 and the air cylinder 27 are integrally formed, the air cylinder 27 is formed in a bottomed cylindrical shape, and the liquid cylinder 25 is formed in a cylindrical shape and the inside thereof and the air cylinder. The cylinder 27 is connected to the bottom surface of the air cylinder 27 in communication with the inside of the cylinder 27. The liquid cylinder 25 and the air cylinder 27 are both arranged coaxially with the central axis O. The air cylinder 27 and the liquid cylinder 25 are fixed to the mounting cap 17 by fitting the upper end of the air cylinder 27 into the mounting cap 17.

Here, the lower end portion of the stem 11 extending through the inside of the air cylinder 27 in the direction of the central axis O is inserted into the upper end portion of the liquid cylinder 25 and the large diameter portion of the liquid piston 24. 24b is fitted to the inner peripheral surface of the liquid cylinder 25 so as to be slidable up and down in a liquid-tight state. In addition, a connecting cylinder 30 that communicates with the inside of the container body 50 when the discharger 10 is attached to the mouth 51 of the container body 50 extends downward from the lower end portion of the liquid cylinder 25. Yes.
Further, in the air cylinder 27, a large-diameter portion 26d constituting the lower end portion of the outer cylinder 26a of the air piston 26 is fitted on the inner peripheral surface of the air cylinder 27 so as to be slidable up and down in an airtight state. ing.

Further, inside the liquid piston 24 and the liquid cylinder 25, the upper end portion is a hollow inverted conical upper valve body 31 and the lower end portion can be seated and separated from the lower end opening in the liquid cylinder 25. A columnar valve member 33 that is a lower valve body 32 is provided.
In an initial state before the pressing head 16 is pressed, the upper valve body 31 of the valve member 33 is disposed on the upper end opening surface of the liquid piston 24 and is positioned above the upper valve body 31 inside the stem 11. The portion and the inside of the liquid cylinder 25 are shut off. Further, the lower valve body 32 of the valve member 33 is separated from the lower end opening in the liquid cylinder 25, and the inside of the liquid cylinder 25 and the inside of the connecting cylinder 30 are communicated.
A first coil spring 34 that biases the liquid piston 24 upward is disposed between the liquid piston 24 and a rib formed on the inner peripheral surface of the lower end portion of the liquid cylinder 25. The first coil spring 34 urges the stem 11 upward via the liquid piston 24.

  The foam member 29 includes a cylindrical casing 29a and two foam elements 29b mounted in the casing 29a. The casing 29 a has a large diameter portion 29 c on the upper side and a small diameter portion 29 d on the lower side. The small diameter portion 29 d is inserted inside the upper end portion of the stem 11, and the outer diameter of the large diameter portion 29 c is the upper end portion of the stem 11. It is almost equal to the outer diameter. Further, in the foam element 29b disposed on the lower side in the casing 29a, a net is stretched on the lower opening surface of the cylinder, and in the foam element 29b disposed on the upper side in the casing 29a, the upper opening of the cylinder is formed. A net is stretched over the surface.

  In addition, an annular valve seat 11 a is projected from the inner peripheral surface of the stem 11 between the liquid piston 24 and the foaming member 29 toward the inner side in the radial direction. Inside, there is provided a spherical liquid discharge valve 11b which can be seated on and separated from the valve seat 11a. In the stem 11, a space between the lower end of the small diameter portion 29 d of the foam member 29 and the upper surface of the valve seat 11 a is the gas-liquid mixing chamber 28.

The pressing head 16 includes a head main body 35 having a mounting cylinder 13 and a horizontal cylinder 15, and a pressing member 36 that can be moved downward relative to the head main body 35 and can be restored upward.
The mounting cylinder 13 is disposed coaxially with the central axis O, has an outer diameter smaller than the inner diameter of the guide cylinder part 23 of the mounting cap 17, and an upper end located above the upper end of the guide cylinder part 23. . Further, the mounting cylinder 13 is provided with the horizontal cylinder 15 projecting at an intermediate portion in the central axis O direction.

  The upper end portion of the stem 11 and the large-diameter portion 29c of the casing 29a of the foam member 29 are fitted in the mounting portion located below the horizontal tube 15 in the mounting tube 13. Further, the lower end portion positioned below the portion where the upper end portion of the stem 11 is fitted in the mounting portion has a larger inner diameter than the portion positioned above the lower end portion in the mounting portion. In the lower end portion, the upper end portion of the inner cylinder 26b of the air piston 26 is fitted so as to be slidable up and down.

  Further, a stepped portion 13 a whose surface is directed upward is formed at the upper end portion of the mounting tube 13 positioned above the horizontal tube 15. In the present embodiment, the stepped portion 13a is formed across the mounting tube 13 and the horizontal tube 15 by reducing the diameter of the upper end portion of the mounting tube 13 from the portion located below the upper end portion. Has been.

The head body 35 is provided with an inner surrounding cylinder 35a that surrounds the mounting cylinder 13 from the outside in the radial direction, and an outer surrounding cylinder 35b that surrounds the mounting cylinder 13 and the inner surrounding cylinder 35a from the outside in the radial direction. The inner casing cylinder 35a and the outer casing cylinder 35b are both arranged coaxially with the central axis O.
The inner surrounding cylinder 35a is disposed so as to surround a portion of the mounting cylinder 13 located below the step portion 13a. An inner diameter of the inner surrounding cylinder 35 a is slightly larger than an outer diameter of the guide cylinder portion 23 of the mounting cap 17, and the lower end of the inner surrounding cylinder 35 a is located below the upper end of the guide cylinder portion 23. . A projection 35c is provided at the lower end of the inner surrounding cylinder 35a so as to project radially inward, and the tip of the projection 35c extends radially outward from the upper end of the guide cylinder portion 23 of the mounting cap 17. It is in contact with or close to the tip of the projection 23a projecting toward it.

The outer surrounding cylinder 35b is disposed so as to surround the upper end portion of the mounting cylinder 13 and the upper end portion of the inner surrounding cylinder 35a.
The inner surrounding cylinder 35a and the outer surrounding cylinder 35b are coupled to the mounting cylinder 13 via a surrounding cylinder coupling portion 35d that protrudes radially outward from the outer peripheral surface of the mounting cylinder 13. A plurality of surrounding tube coupling portions 35d are provided to protrude in the circumferential direction.

The horizontal cylinder 15 projects from the mounting cylinder 13 toward the outside in the radial direction, and is provided so as to penetrate both the inner surrounding cylinder 35a and the outer surrounding cylinder 35b.
In the present embodiment, the inside of the horizontal cylinder 15 has a cross-sectional view shape along the direction orthogonal to the central axis O and the same shape and the same size regardless of the position in the central axis O direction (position in the vertical direction). It has become. In the illustrated example, the inside of the horizontal cylinder 15 is defined in a rectangular parallelepiped shape by the inner surface of the horizontal cylinder 15. Further, on the inner surface of the horizontal cylinder 15, an upper surface 15a facing downward and a lower surface 15b facing upward are formed.

The pressing member 36 is disposed on the head main body 35 and is formed in a top cylinder shape, and is disposed coaxially with the central axis O.
Between the top wall portion 36 a of the pressing member 36 and the stepped portion 13 a of the mounting cylinder 13, a second coil spring 37 that biases the pressing member 36 upward is disposed. In the present embodiment, the second coil spring 37 has a lower upward biasing force, that is, a spring constant, than the first coil spring 34.
In addition, in the top wall portion 36a of the pressing member 36, an inner cylinder portion 36b disposed coaxially with the central axis O is provided at a lower portion at a portion continuous from the outside in the radial direction to a portion where the upper end of the second coil spring 37 abuts. Projected toward. The inner cylinder portion 36b restricts the movement of the second coil spring 37 in the radial direction. In addition, the lower end of the inner cylinder part 36b is located above the lower end of the surrounding wall part 36c of the pressing member 36.

  The lower end of the peripheral wall portion 36c of the pressing member 36 is located below the surrounding tube coupling portion 35d. In the peripheral wall portion 36c, a portion corresponding to the surrounding tube coupling portion 35d, that is, a portion facing the surrounding tube coupling portion 35d in the central axis O direction, is formed with a plurality of concave grooves 36d that open downward. The surrounding cylinder coupling portion 35d is inserted into the concave groove 36d. Thereby, the rotation of the pressing member 36 in the circumferential direction with respect to the head main body 35 is restricted. In addition, the upper surface of the concave groove 36d facing downward is located below the upper end of the outer casing cylinder 35b.

In addition, a sliding cylinder part 36e fitted in the upper end part of the mounting cylinder 13 so as to be slidable in the vertical direction protrudes downward from the top wall part 36a of the pressing member 36. The sliding cylinder portion 36e is disposed coaxially with the central axis O. In the illustrated example, the sliding cylinder portion 36e gradually moves downward on the inner peripheral surface of the lower end of the sliding cylinder portion 36e from the inner side to the outer side in the radial direction. A notch is formed over the entire circumference.
The top wall portion 36a is provided with a fitting cylinder portion 36f that is disposed coaxially with the central axis O and extends downward from the lower end of the sliding cylinder portion 36e, and this fitting cylinder portion 36f. The outer peripheral surface of the upper end portion is connected to the inner peripheral surface of the sliding cylinder portion 36e over the entire periphery. In the illustrated example, the lower end edge of the fitting cylinder portion 36f coincides with the upper surface 15a of the inner surface of the horizontal cylinder 15 in the direction of the central axis O.

In this embodiment, the pressing member 36 includes a movable plate 38 disposed in the horizontal cylinder 15. Further, the pressing member 36 includes a connecting member 39 that is integrally formed with the movable plate 38 and is fixed to the fitting cylinder portion 36f.
The upper surface 38 a of the movable plate 38 is in contact with the inner surface of the horizontal cylinder 15. In the illustrated example, the upper surface 38a of the movable plate 38 is in contact with the upper surface 15a of the inner surface of the horizontal cylinder 15 over the entire region. The lower surface 38 b of the movable plate 38 is parallel to the lower surface 15 b of the inner surface of the horizontal cylinder 15. Furthermore, in this embodiment, the movable plate 38 extends from the proximal end to the distal end of the horizontal cylinder 15, and the planar view shape of the movable plate 38 is the same shape and size as the horizontal sectional view inside the horizontal cylinder 15. The side surface of the movable plate 38 is in sliding contact with the side surface extending along the central axis O direction on the inner surface of the horizontal tube 15.

The connecting member 39 is connected to the base end surface of the movable plate 38, and is connected to the connecting plate portion 39a disposed in the mounting cylinder 13, and is projected from the connecting plate portion 39a and fitted into the fitting cylinder portion 36f. The fixed cylinder portion 39b is provided.
The upper and lower surfaces of the connecting plate portion 39a are flush with the upper and lower surfaces 38a and 38b of the movable plate 38, respectively, and a part of the side surface of the connecting plate portion 39a is connected to the base end surface of the movable plate 38. . In addition, a gap is provided between a portion of the side surface of the connecting plate portion 39 a that is not connected to the movable plate 38 and the inner peripheral surface of the mounting cylinder 13.
The fixed cylinder portion 39b is arranged coaxially with the central axis O and protrudes from the upper surface of the connecting plate portion 39a.

  The pressing restricting member 18 is formed in a C shape in a top view, and the guide tube portion 23 of the mounting cap 17 is fitted therein. The upper end edge of the pressing restricting member 18 abuts on the lower end surface of the head body 35 (the lower surface of the protrusion 35 c of the inner casing cylinder 35 a), and the lower end edge of the pressing restricting member 18 is the upper surface of the top wall portion 21 of the mounting cap 17. The pressing restricting member 18 restricts the pressing down of the pressing head 16 by being interposed between the head main body 35 and the mounting cap 17. Further, in the pressing restricting member 18, a gripping portion 18 a protrudes outward in the radial direction on the opposite side of the opening extending in the central axis O direction with respect to the central axis O.

  Further, in the present embodiment, the discharger 10 is formed with an air passage 40 that communicates the air cylinder 27 and the gas-liquid mixing chamber 28 and flows and transports the compressed air in the air cylinder 27. ing. The air passage 40 includes a first groove 40a formed on the outer peripheral surface of the stem 11, a second groove 40b communicating with the first groove 40a and formed on the inner peripheral surface of the mounting cylinder 13 of the head body 35, The second groove 40b and the gas-liquid mixing chamber 28 are communicated with each other, and the third groove 40c is formed on the outer surface of the casing 29a of the foam member 29.

The first groove 40a extends in the direction of the central axis O so as to communicate with the lower end portion of the mounting cylinder 13 at a portion where the inner cylinder 26b of the air piston 26 slides up and down on the outer peripheral surface of the stem 11 and upwards. It is open and formed. A plurality of first grooves 40a are formed at intervals in the circumferential direction.
The second groove 40b extends in the direction of the central axis O so as to communicate with the inside of the lower end of the mounting cylinder 13 at a portion where the upper end of the stem 11 is fitted on the inner peripheral surface of the mounting portion of the mounting cylinder 13. An opening is formed downward. A plurality of second grooves 40b are formed at intervals in the circumferential direction.
The first groove 40 a and the second groove 40 b communicate with each other through a gap between the inner peripheral surface of the mounting cylinder 13 and the outer peripheral surface of the stem 11 in the lower end portion of the mounting cylinder 13.

The third groove 40c extends upward from the lower end on the outer peripheral surface of the small-diameter portion 29d of the casing 29a, reaches the outer surface of the bottom portion of the large-diameter portion 29c, and further extends outward in the radial direction so as to open. Is formed. A plurality of third grooves 40c are formed at intervals in the circumferential direction.
The second groove 40 b and the third groove 40 c communicate with each other across the upper end opening edge of the stem 11.

Further, on the outer peripheral surface of the stem 11, an annular projecting portion 11 c is protruded toward the outside in the radial direction at a portion where the lower ends of the plurality of first grooves 40 a are located. The lower end of the inner cylinder 26b of the air piston 26 is in contact with the upper surface of 11c. Thereby, the communication between the first groove 40a and the air cylinder 27 is blocked, and the communication between the air cylinder 27 and the gas-liquid mixing chamber 28 is blocked.
In the ejector 10, when the pressing head 16 is pressed, the lower surface of the protruding portion 11 c comes into contact with the bottom surface in the air cylinder 27, so that pressing of the pressing head 16 can be restricted. Yes.

Next, a method for discharging the contents in the container body 50 attached to the mouth portion 51 using the discharge device 10 configured as described above will be described.
First, the user of the dispenser 10 grips the pressing restricting member 18 from the guide tube portion 23 of the mounting cap 17 by gripping the grip portion 18a.

  Next, the user presses the pressing member 36 of the pressing head 16. Here, in this embodiment, since the upward biasing force of the second coil spring 37 is smaller than the upward biasing force of the first coil spring 34, the upward biasing force is applied to the first coil spring 34 via the liquid piston 24 and the stem 11. The pressed head body 35 does not move downward together with the pressing member 36, but the pressing member 36 moves downward relative to the head body 35 against the upward biasing force of the second coil spring 37. At this time, the pressing member 36 moves downward while the outer peripheral surface of the peripheral wall portion 36c of the pressing member 36 and the inner peripheral surface of the outer casing cylinder 35b of the head body 35 are in sliding contact with each other. It moves downward relative to the head body 35 while being guided in the direction of the central axis O by 35b. Further, as the pressing member 36 moves downward, the movable plate 38 moves downward in the horizontal cylinder 15 while the both side surfaces of the movable plate 38 and the both side surfaces of the inner surface of the horizontal cylinder 15 are in sliding contact with each other. The upper surface 38a of 38 and the upper surface 15a of the inner surface of the horizontal cylinder 15 are separated from each other in the direction of the central axis O.

  Next, when the pressing member 36 is further pressed from this state, as shown in FIG. 2, the movable plate 38 continues to move downward in the horizontal cylinder 15, and the lower surface of the movable plate 38 becomes the lower surface 15 b of the inner surface of the horizontal cylinder 15. , It abuts over its entire area. Thus, the contents discharged from the discharge hole 14 are circulated in the horizontal cylinder 15 by the upper surface 15a and both side surfaces of the inner surface of the horizontal cylinder 15 and the upper surface 38a of the movable plate 38. A discharge flow path 41 is formed. At this time, in this embodiment, the upper surface of the concave groove 36d in the peripheral wall portion 36c of the pressing member 36 is also in contact with the upper surface of the surrounding tube coupling portion 35d of the head body 35, and the top wall portion 36a of the pressing member 36 is The lower surface also comes into contact with the upper end edge of the mounting cylinder 13 of the head body 35.

  Next, when the pressing member 36 is further pressed from this state, the head main body 35 moves downward together with the pressing member 36 against the upward biasing force of the first coil spring 34, that is, the entire pressing head 16 is pressed. Accordingly, the foam member 29, the stem 11, and the liquid piston 24 move downward. At this time, in this embodiment, the force applied to the pressing member 36 by the user to press the pressing head 16 is not only applied to the head body 35 from the pressing member 36 via the second coil spring 37 but also to the movable plate 38. Can be transmitted to the head main body 35 also through the lower surface 38b, the upper surface of the recessed groove 36d in the peripheral wall portion 36c of the pressing member 36, and the lower surface of the top wall portion 36a of the pressing member 36. It can be moved downward.

  When the pressing member 36 is pressed so far, the stem 11 moves downward while the outer peripheral surface of the stem 11 is in sliding contact with the inner peripheral surface of the inner cylinder 26b of the air piston 26, and the air piston 26 moves downward. Therefore, a gap is formed between the lower end of the inner cylinder 26 b of the air piston 26 and the protruding portion 11 c of the stem 11, and the first groove 40 a communicates with the air cylinder 27. As a result, the air cylinder 27 and the gas-liquid mixing chamber 28 communicate with each other through the air passage 40. Further, at this time, the valve member 33 is moved downward along with the downward movement of the liquid piston 24, and the lower valve body 32 of the valve member 33 is seated on the lower end opening of the liquid cylinder 25 and this lower end opening. The portion is closed, and communication between the inside of the liquid cylinder 25 and the inside of the connecting cylinder 30 is blocked.

  Next, when the pressing member 36 is further pressed from this state, the air piston 26 is pushed down by the mounting cylinder 13, and the air piston 26 also moves the valve body 26 c from the outer cylinder 26 a as the head body 35 moves downward. It is moved downward with the gap between the inner cylinder 26b closed. As a result, the air in the lower chamber located below the air piston 26 in the air cylinder 27 is compressed, and the air in the lower chamber is compressed into the projecting shape of the lower end of the inner cylinder 26 b and the stem 11 in the air piston 26. The air flows into the air passage 40 from the gap with the portion 11 c and is transferred to the gas-liquid mixing chamber 28.

  At this time, the liquid piston 24 is moved downward in a state where the lower end opening in the liquid cylinder 25 is closed by the lower valve body 32, so that the upper valve body 31 is moved to the upper end opening of the liquid piston 24. It is separated from. As a result, the liquid pressure in the liquid cylinder 25 acts on the liquid discharge valve 11b seated on the valve seat 11a of the stem 11, and the liquid discharge valve 11b is separated from the valve seat 11a. As a result, the content compressed in the liquid cylinder 25 is transferred into the gas-liquid mixing chamber 28.

  As described above, the contents transferred from the liquid cylinder 25 and the air transferred from the air cylinder 27 are mixed in the gas-liquid mixing chamber 28 and then passed through the foaming member 29 to foam. And the contents become foamy. The foam-like contents are further transferred upward in the mounting cylinder 13 and pass between the side surface of the connecting member 39 and the outer peripheral surface of the fitting cylindrical portion 36f and the inner peripheral surface of the mounting cylinder 13, and then the discharge It flows into the flow path 41 and is discharged from the discharge hole 14.

  Next, the operator releases the pressing of the pressing member 36. Thereby, as shown in FIG. 3, the liquid piston 24, the stem 11, the air piston 26, and the pressing head 16 are restored and moved upward by the elastic restoring force of the first coil spring 34. Further, the pressing member 36 of the pressing head 16 is restored and moved upward by the elastic restoring force of the second coil spring 37. As the pressing member 36 moves upward, the movable plate 38 moves upward in the horizontal cylinder 15. As a result, the content remaining in the discharge channel 41 after discharge is sandwiched between the upper surface 38 a of the movable plate 38 and the upper surface 15 a of the inner surface of the horizontal cylinder 15 and discharged from the discharge hole 14.

  Here, in the present embodiment, the movable plate 38 extends from the proximal end to the distal end of the horizontal cylinder 15, and the planar view shape of the movable plate 38 is the same shape and the same size as the transverse sectional view inside the horizontal cylinder 15. Therefore, the contents remaining in the discharge channel 41 can be discharged over the entire area of the discharge channel 41. Further, since the movable plate 38 moves upward in the horizontal cylinder 15 while the both side surfaces of the movable plate 38 and the both side surfaces of the inner surface of the horizontal cylinder 15 are in sliding contact with each other, the contents remaining in the discharge flow path 41 are removed. Further, it is possible to prevent the movable plate 38 from turning around from the upper surface 38a side to the lower surface 38b side.

  Further, in the process in which the stem 11 is restored and moved by the elastic restoring force of the first coil spring 34, the projecting portion 11c of the stem 11 contacts the lower end of the inner cylinder 26b of the air piston 26, so that the air piston 26 is also It is moved upward. As a result, the lower chamber of the air cylinder 27 is in a negative pressure state, and the blockage of the gap between the outer cylinder 26a and the inner cylinder 26b by the valve body 26c of the air piston 26 is released, and the outside air passes through this gap. It flows into the lower chamber.

  As described above, according to the dispenser 10 according to the present embodiment, since the pressing member 36 includes the movable plate 38 disposed in the horizontal cylinder 15, when the pressing member 36 is pressed and when this pressing is performed. At the time of release, the movable plate 38 is moved downward and upward in the horizontal cylinder 15 as the pressing member 36 moves in the direction of the central axis O with respect to the head main body 35. Accordingly, when the pressing member 36 is pressed to discharge the contents from the discharge hole 14 and then the pressing is released, the movable plate 38 moved downward in the horizontal cylinder 15 by the pressing moves upward. The contents remaining in the horizontal cylinder 15 after discharging are sandwiched between the movable plate 38 that moves upward and the inner surface of the horizontal cylinder 15 that faces the upper surface 38a of the movable plate 38, and are discharged from the discharge hole 14. The Therefore, the contents remaining in the horizontal cylinder 15 after discharge can be reduced, and the solidification and dripping of the contents in the horizontal cylinder 15 can be suppressed.

Further, since the upper surface 38a of the movable plate 38 is in contact with the upper surface 15a of the inner surface of the horizontal cylinder 15, by pressing the pressing member 36 and discharging the contents from the discharge hole 14, the pressing is released. The movable plate 38 moves upward until the upper surface 38a contacts the upper surface 15a of the inner surface of the horizontal cylinder 15. Accordingly, it is possible to reliably reduce the content remaining between the upper surface 38a of the movable plate 38 and the upper surface 15a of the inner surface of the horizontal cylinder 15, and to ensure that the content remaining in the horizontal cylinder 15 after the discharge. Can be reduced.
Further, since the contents transferred into the horizontal cylinder 15 are in the form of bubbles, for example, the contents are more likely to remain in the horizontal cylinder 15 than in the case where the contents are merely liquid. Will be remarkably successful.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the pressing member 36 is not limited to the one shown in the above embodiment as long as the pressing member 36 is disposed so as to be movable downward with respect to the head main body 35 and to be restored upward. It may be a member 60, a pressing head 61 having the pressing member 60, and an ejector 62 including the pressing head 61.
The pressing member 60 of the pressing head 61 in the ejector 62 shown in FIG. 4 includes a hemispherical elastic film portion 63 that opens downward, and an outer peripheral edge portion (lower end portion) of the elastic film portion 63. ) Is fitted in the upper end portion of the outer casing 35b of the head main body 35 of the pressing head 61. Further, in the illustrated example, the surrounding tube coupling portion 64 is formed in an annular shape, and the lower end edge of the elastic film portion 63 is in contact with the upper surface of the surrounding tube coupling portion 64 of the head body 35. In addition, the surrounding cylinder coupling portion 64 is formed with a communication hole 65 that communicates the inner surface (lower surface) of the elastic film portion 63 and the space defined by the head body 35 with the outside. The sliding cylinder part 36e and the fitting cylinder part 36f are provided on the inner surface of the elastic film part 63, respectively.
According to the discharge device 62 configured as described above, when the pressing member 60 is pressed, the elastic film portion 63 is elastically deformed and the central portion thereof moves downward, and accordingly the movable plate 38 is moved to the horizontal cylinder. Move downward within 15. Then, after the contents are discharged from the discharge hole 14, when the pressing of the pressing member 60 is released, the elastic film portion 63 is restored and deformed by its elastic restoring force and moved upward, and the movable plate 38 is moved accordingly. It moves upward in the horizontal cylinder 15. Thereby, the effect similar to the discharge device 10 shown by the said embodiment can be achieved.

In the above-described embodiment, the second coil spring 37 is used as the biasing member that biases the pressing member 36 upward. Instead, for example, a soft material or a resin spring is integrated with the pressing member 36. It may be formed, or may be provided as a separate body, or a rubber member or the like may be provided.
In the above embodiment, the upward biasing force of the second coil spring 37 is smaller than that of the first coil spring 34. However, the present invention is not limited to this. For example, the upward biasing force of the first coil spring 34 is the second biasing force. The coil spring 37 may be smaller than the coil spring 37, or the upper biasing force of both the coil springs 34 and 37 may be equalized.

  In addition, the movable plate 38 and the pressing members 36 and 60 may be formed integrally with, for example, a synthetic resin, or may be formed as separate bodies and bonded together, for example. Further, the movable plate 38 may be formed of the same material as that for forming the pressing members 36 and 60, or may be formed of a material softer than the pressing members 36 and 60, for example, a rubber-like elastic body such as an elastomer. Good.

Further, instead of the above embodiment, the inside of the horizontal cylinder is defined in a cylindrical shape by the inner surface of the horizontal cylinder, and the movable plate is a plate-like body having a rectangular shape in a plan view made of a rubber-like elastic body. By making the length of the short side forming the rectangular shape equal to the inner diameter of the inner shape of the horizontal cylinder, the both sides of the movable plate having the long side forming the rectangular shape may be before and after the pressing head is pressed. Instead, they may be brought into sliding contact with the inner surface of the horizontal cylinder.
In this case, before the pressing head is pressed, the movable plate is bent so as to be convex upward by the upward biasing force against the pressing member by the second coil spring, and comes into contact with the upper portion of the inner surface of the horizontal cylinder, Further, when the pressing member is pressed, the movable plate is curved so as to protrude downward and comes into contact with the lower portion of the inner surface of the horizontal cylinder.
Even in the above configuration, when the pressing member is pressed and when the pressing is released, the inside of the horizontal cylinder can be moved in the central axis direction while sliding the both side portions of the movable plate and the inner surface of the horizontal cylinder. The plate is moved, and the same effect as that of the above embodiment is achieved.

In the above-described embodiment, the movable plate 38 slides in the horizontal cylinder 15 when the movable plate 38 moves in the direction of the central axis O. However, the movable plate 38 moves in the direction of the central axis O. If it does, it is good also as a structure which does not slide. Further, the shapes of the movable plate 38 and the horizontal cylinder 15 are not limited to those shown in the embodiment.
In the above embodiment, before the pressing member 36 and 60 is pressed, the upper surface 38a of the movable plate 38 has been inner surface of the lateral tube 15 (the upper surface 15a) is intended to abut, reference example of the present invention However, the present invention is not limited to this. Furthermore, it is assumed that the lower surface 38b of the movable plate 38 comes into contact with the inner surface (lower surface 15b) of the horizontal cylinder 15 when the pressing members 36 and 60 are pressed, but the modified example of the present invention is limited to this. is not.

Moreover, in the said embodiment, although the dischargers 10 and 62 shall be equipped with the mounting | wearing cap 17 and the pressing-down control member 18, these are not necessary.
Moreover, in the said embodiment, although the dischargers 10 and 62 were set as the so-called former pump which discharges the foam-like content from the discharge hole 14, it is not restricted to this. For example, the discharger may not be provided with the air piston 26, the air cylinder 27, the gas-liquid mixing chamber 28, and the foaming member 29, and may simply be configured to discharge the liquid content. Further, the ejector may have a so-called aerosol type configuration.

  In the above-described embodiment, the liquid piston 24 is linked to the stem 11, and the air piston 26 is linked to the pressing head 16 when the pressing head 16 is pressed, and is linked to the stem 11 when the pressing is released. However, it is not limited to this. For example, the liquid piston 24 may be any one that is linked to the pressing head 16 and / or the stem 11 and slides in the liquid cylinder 25, and the air piston 26 may be the pressing head 16 and / or the stem. 11 and slide in the air cylinder 27.

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

10, 62 Discharger 11 Stem 12 Pump 13 Mounting cylinder 14 Discharge hole 15 Horizontal cylinder 15a The upper surface of the inner surface of the horizontal cylinder (the inner surface of the horizontal cylinder)
16, 61 Press head 24 Liquid piston 25 Liquid cylinder 26 Air piston 27 Air cylinder 28 Gas-liquid mixing chamber 29 Foam member 35 Head body 36, 60 Press member 38 Movable plate 38a Movable plate upper surface 50 Container body 51 Port Part

Claims (2)

A pump having a stem standing upright so as to be movable downward in an upwardly biased state;
A mounting cylinder that is attached to the upper end of the stem and communicates with the inside of the stem, and projects outwardly from a peripheral wall portion of the mounting cylinder, and communicates with the inside of the mounting cylinder and has a discharge hole at the tip. A pressing head having a horizontal tube formed,
In a state where the contents are installed in the mouth of the container body, the contents in the container body are transferred by depressing the pressing head, moving the stem downward and operating the pump. A discharger that is discharged from the discharge hole through a horizontal cylinder,
The pressing head includes a head main body having the mounting cylinder and the horizontal cylinder, and a pressing member disposed so as to be movable downward and restored upward with respect to the head main body,
The pressing member includes a movable plate disposed in the horizontal cylinder ,
The upper surface of the movable plate is in contact with the inner surface of the horizontal cylinder before the pressing member is pressed . The dispenser according to claim 1 , wherein
The pump mixes the liquid cylinder in which the liquid piston slides, the air cylinder in which the air piston slides, the contents from the liquid cylinder and the air from the air cylinder. A gas-liquid mixing chamber, and a foaming member for foaming the contents and air mixed in the gas-liquid mixing chamber,
By operating the pump in a state of being attached to the mouth of the container body, the contents in the liquid cylinder and the air in the air cylinder are compressed, and the contents and air are compressed into the gas-liquid. A discharger characterized in that it is transported to a mixing chamber, mixed, foamed by the foaming member, and then discharged from the discharge hole through the horizontal cylinder.

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