JP6531004B2 - Dispenser - Google Patents

Description

  The present invention relates to a dispenser.

Conventionally, a dispenser shown in the following Patent Document 1 is known. The discharge device has a discharge head which is disposed movably downward in an upward biasing state at the mouth of the container main body in which the content is accommodated and in which a discharge hole of the content which is opened forward is formed. A pump, a mounting cap for mounting the pump at the mouth, a support portion erected at the rear of the mounting cap, and a pressing member rotatably disposed on the support portion about the rotation axis and pressing down the discharge head; Have. In the discharger, by rotating the pressing member downward about the rotation axis, the discharge head moves downward, and the contents are discharged from the discharge hole.
In this type of dispenser, generally, biasing means for biasing the dispensing head upward is a metal coil spring and disposed in the cylinder of the pump.

JP 2008-030798 A

  However, in the above-mentioned conventional dispenser, since the biasing means is disposed in the cylinder filled with the contents, there is a possibility that the type of contents to which the dispenser can be applied may be limited.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a discharger applicable to various types of contents.

In order to solve the above-mentioned subject, the present invention proposes the following means.
The discharge device according to the present invention is provided with a discharge hole for the content, which is disposed movably downward in an upward biasing state and is opened forward toward the front, at the mouth of the container body in which the content is accommodated. A pump having a discharge head, a mounting cap for mounting the pump at the mouth of the container body, a support portion erected at the rear of the mounting cap, and the support portion And a pressing member configured to press down the discharge head, and pressing the pressing member to rotate downward about the rotation axis moves the discharge head downward, and the contents are discharged from the discharge hole. A discharger to be discharged, wherein the pressing member presses the pressed portion formed on the discharge head in accordance with the downward rotation of the pressing member to move the discharge head downward. Is formed, said spout Biasing means for upwardly biasing the head has one end connected to the support portion, and Ri other end extending body der made linked synthetic resin to the discharge head, the other of the extending body The end portion supports the pressing engagement projection formed on the discharge head from below .

According to the present invention, when the pressing member is rotated downward about the rotation axis, the pressing portion of the pressing member presses the pressed portion of the discharge head while the extension body is elastically deformed. The head moves downward, and the contents are discharged from the discharge hole. Thereafter, when the pressing member is released from the pressing, the extension body is restored and deformed, and the discharge head is restored and moved upward. At this time, since the pressing portion of the pressing member and the pressed portion of the discharge head are in contact with each other, the pressing member also moves upward and returns.
And since the extension body is disposed between the support portion and the discharge head, it is possible to prevent the biasing member from being disposed in the cylinder of the pump and coming into contact with the contents as in the prior art. Therefore, the discharger applicable to various kinds of contents can be provided.

  Further, since the extension body is made of synthetic resin, it is possible to reduce the time and effort of sorting when discarding the discharger. Furthermore, since it is not necessary to dispose the extension body in the cylinder, the length of the cylinder can be easily shortened, and the overall size of the pump and the discharger can be easily reduced.

  According to the present invention, the other end of the extension supports the pressing engagement projection formed on the discharge head from below, so that, for example, either of the other end of the extension and the discharge head The discharge device can be easily assembled since it is not necessary to rotatably fit the shaft portion formed on the other into the bearing hole formed on one side. Further, for example, by forming a protrusion or the like extending laterally from the discharge head, the pressing engagement protrusion can be easily formed, so that the configuration can be simplified.

  In the above-described dispenser, the pressing member includes a pair of side plate portions sandwiching the discharge head in the right and left direction orthogonal to the front and rear direction, and the discharge head has a shaft portion projecting toward the side plate portion. The pressing portion may be formed in the side plate portion and abut on the shaft portion from above, and the shaft portion may serve as the pressed portion and the pressing engagement projection.

  According to the present invention, since the shaft portion can be used also as the pressed portion and the pressing engagement protrusion, the configuration can be further simplified, and the discharge device can be easily miniaturized.

  In the above-described dispenser, it is preferable that the other end of the extension body is coupled to the dispensing head in a state of being elastically deformed downward.

  According to the present invention, an elastic force can be applied to the extension body in advance, and the discharge head can always be urged upward. Therefore, after the content is discharged, the pressing member and the discharge head can be easily returned to the original position immediately, and the discharge operability can be improved. Furthermore, since it is possible to prevent the pressing member from rotating downward with a slight force, it is difficult to eject the contents by mistake.

  According to the present invention, it is possible to provide a dispenser applicable to various types of contents.

It is an axial sectional view showing the discharge machine concerning the embodiment of the present invention. It is the elements on larger scale which show the dispenser of FIG. It is a partially expanded perspective view which shows the lower end part of the stem of FIG. It is the fragmentary sectional view which looked at the dispenser of FIG. 1 from the front. It is an axial sectional view which shows the discharge state of the discharger of FIG. It is the elements on larger scale which show the dispenser of FIG.

  Hereinafter, an embodiment of a dispenser according to the present invention will be described based on the drawings. In addition, in each drawing used for the following description, in order to make each member into a recognizable size, the scale is appropriately changed.

  The dispenser 1 according to the present embodiment is, as shown in FIG. 1, disposed at the mouth 3 of the container body 2 containing the contents so as to be capable of moving downward in an upward biasing state and opening forward. The pump 14 having the discharge head 13 having the discharge hole 13A of the content to be formed, the top cylindrical mounting cap 11 for mounting the pump 14 on the opening 3 of the container body 2, and the rear of the mounting cap 11 A support portion 15 provided, a pressing member 16 rotatably disposed around the rotation axis L on the support portion 15, and pressing means 16 for pressing down the discharge head 13, and biasing means 90 for biasing the discharge head 13 upward .

  In the discharger 1, when the pressing member 16 is rotated downward around the rotation axis L, the discharge head 13 is moved downward, and the contents are discharged from the discharge hole 13A. The discharge head 13 includes a cylindrical stem 12 and a head main body 30 mounted on the upper end of the stem 12 and having a discharge hole 13A formed therein.

  Here, the mounting cap 11 and the stem 12 are disposed such that their central axes are located on a common axis. Hereinafter, this common axis is referred to as a central axis O, and in FIG. 1, the direction toward the head main body 30 with respect to the stem 12 along the central axis O is referred to as the upper side and the opposite direction is the lower side. Further, in a plan view seen from the central axis O, a direction orthogonal to the central axis O is referred to as a radial direction, and a direction circling around the central axis O is referred to as a circumferential direction. Further, in the radial direction, the direction in which the discharge holes 13A of the head main body 30 are directed is the front, the opposite direction is the rear, and the direction perpendicular to the vertical direction and the front-rear direction is the horizontal direction.

The mounting cap 11 mounts the pump 14 on the opening 3 of the container body 2. The mounting cap 11 has a circular top wall 21 in a plan view with an opening formed at the center, and a cylindrical peripheral wall 22 extending downward from the outer peripheral edge of the top wall 21 Have. The top wall 21 and the peripheral wall 22 are disposed coaxially with the central axis O.
On the inner peripheral surface of the peripheral wall portion 22, a female screw is formed, which is screwed to a male screw formed on the outer peripheral surface of the opening 3 of the container body 2.

  As shown in FIGS. 1 and 2, the pump 14 is a cylindrical cylinder in which the discharge head 13, a double cylindrical piston 41 linked to the stem 12, and the piston 41 are accommodated slidably in the vertical direction. 42, a bottomed cylindrical piston guide 43 extending downward from the stem 12 and vertically penetrating the inside of the piston 41, a spherical valve body 44 disposed in the cylinder 42, and the stem 12 And a cylindrical guide cylinder 45 surrounding the outside from the outside.

  The stem 12 is inserted inside the guide cylinder 45 so as to be movable up and down, and the upper part of the stem 12 protrudes upward from the guide cylinder 45, and the lower end of the stem 12 is the guide cylinder 45. It protrudes below the upper member 45b mentioned later. The inner diameter and the outer diameter of the lower end portion of the stem 12 are larger than the inner diameter and the outer diameter of the upper portion of the stem 12 and the middle portion in the vertical direction, and at the transition portion 12A from the middle portion to the lower end of the stem 12 The inner diameter and the outer diameter gradually increase in diameter downward. Further, on the inner peripheral surface of the upper portion of the stem 12, an engaging protrusion 12B protruding radially inward is formed over the entire circumference.

Furthermore, as shown in FIGS. 1 to 3, at the lower end of the stem 12, a guide protrusion 12 </ b> C protruding radially outward is formed over the entire circumference. A cylindrical elastic member 25 extends downward from the outer peripheral edge of the guide protrusion 12C.
As shown in FIG. 3, a plurality of elastic member cutouts 25 </ b> A extending in the vertical direction are formed in the elastic member 25 at intervals in the circumferential direction. Further, as shown in FIGS. 1 and 2, the lower end opening edge of the elastic member 25 is inclined so as to face downward from the radially outer side toward the inner side.

As shown in FIG. 1, the head main body 30 has a top cylindrical mounting cylindrical portion 31 mounted on the upper end portion of the stem 12 and a cylindrical cylindrical body protruding forward from the front surface of the mounting cylindrical portion 31. And a nozzle cylinder portion 32.
A longitudinal rib 31 a extending in the up and down direction is provided on the outer peripheral surface of the mounting cylindrical portion 31 in a protruding manner. A plurality of longitudinal ribs 31a are arranged at intervals in the circumferential direction.
A core rod body 35 extending in the front-rear direction and a tipped cylindrical tip 36 attached to a front end portion of the core rod body 35 are disposed in the nozzle cylinder portion 32.
On the outer peripheral surface of the core rod body 35, a plurality of flow passage groove portions 35A which allow the flow of contents between the inner peripheral surface of the nozzle cylindrical portion 32 and the inner peripheral surface are formed in the front-rear direction.

The tip 36 is disposed coaxially with the core rod 35, and has a cylindrical tip cylindrical portion 37 provided on the outer peripheral surface of the core rod 35 and an end provided at the tip of the tip cylindrical portion 37. And a wall portion 38.
The tip tube portion 37 is fitted in the nozzle tube portion 32, and the end wall portion 38 is in contact with the tip end surface of the core rod body 35. A spin flow passage 38A communicating with the flow passage groove portion 35A of the core rod body 35 is formed on the rear surface of the end wall portion 38 that abuts on the tip end surface of the core rod body 35. Further, a discharge hole 13A communicating with the spin flow channel 38A is formed in a central portion of the end wall portion 38.

The piston 41 includes a cylindrical sliding portion 51, a cylindrical closing portion 52 disposed radially inward of the sliding portion 51, an upper end of the sliding portion 51, and a vertically intermediate portion of the closing portion 52. And an annular connecting portion 53 having an annular shape in plan view. The sliding portion 51, the closing portion 52 and the annular connecting portion 53 are disposed coaxially with the central axis O.
The lower end portion of the sliding portion 51 is curved so as to be gradually curved outward in the radial direction as it goes downward from above, and the lower end of the sliding portion 51 is in sliding contact with the inner peripheral surface of the cylinder 42 There is.
The lower end portion of the closed portion 52 is curved so as to be gradually curved radially inward as it goes downward from the upper side, and abuts on an abutting portion 43E formed in the vicinity of a bottom 43A described later of the piston guide 43 I am in touch. Further, the upper end portion of the closing portion 52 is curved so as to be gradually bent radially outward as it goes upward from the lower side, and is in sliding contact with the inner peripheral surface of the lower end portion of the stem 12.
The upper surface of the annular connection portion 53 is inclined downward as it goes from the radially outer side to the inner side, and forms a receiving surface 53A that receives the lower end opening edge of the elastic member 25.

  The cylinder 42 has an annular top wall 61 in a plan view, a cylindrical upstanding cylindrical portion 62 extending upward from the top wall 61, and a lower edge from the opening edge of the top wall 61. Toward the lower end from the lower end of the cylindrical upper cylinder portion 63 extending toward the lower end from the lower end of the cylindrical upper cylinder portion 63 extending downward from the lower end of the upper cylindrical portion 63; And an extended cylindrical lower cylinder portion 65. The top wall portion 61, the rising cylindrical portion 62, the middle cylindrical portion 64, and the lower cylindrical portion 65 are disposed coaxially with the central axis O.

The outer peripheral edge of the top wall 61 is vertically sandwiched between the top wall 21 of the mounting cap 11 and the upper opening edge of the mouth 3 of the container body 2. Further, a first packing 66 is interposed between the outer peripheral edge of the top wall 61 and the upper end opening edge of the opening 3.
The rising cylindrical portion 62 is erected upward through the opening of the top wall portion 21.
At the upper end portion of the upper cylindrical portion 63, an air hole 63A communicating the inside and the outside of the upper cylindrical portion 63 is formed. The air hole 63A is closed by the outer peripheral surface of the annular connection portion 53. Further, the guide protrusion 12 </ b> C of the stem 12 is in contact with or in proximity to the inner peripheral surface of the upper cylindrical portion 63.

The middle cylinder portion 64 extends downward from the opening edge of the upper cylinder portion 63, and from the lower end of the straight cylinder portion 67 whose inner diameter and outer diameter are constant in the vertical direction and downward from the lower end of the straight cylinder portion 67. And a tapered cylindrical portion 68 whose inner diameter and outer diameter decrease in diameter from the upper side to the lower side.
On the inner peripheral surface of the straight cylindrical portion 67, a plurality of vertical rib portions 67A extending in the vertical direction and projecting radially inward are disposed at intervals in the circumferential direction. Further, a bottom portion (lower end portion) 43A, which will be described later, of the piston guide 43 can enter into the straight cylinder portion 67.
The valve body 44 is disposed on the inside of the tapered cylindrical portion 68 so as to be freely attached to and detached from the tapered surface of the tapered cylindrical portion 68. Further, on the inner peripheral surface of the tapered cylindrical portion 68, a restricting protrusion 68A which is inclined upward as it goes from the radially outer side to the inner side is protruded. The inner diameter of the upper end of the restriction protrusion 68A is smaller than that of the valve body 44. Further, a gap for interrupting the circumferential extension is formed in the restriction protrusion 68A.
Inside the lower cylindrical portion 65, a tube 69 in which the contents in the container body 2 flow is fitted.

The bottom portion 43A of the piston guide 43 is formed in a hemispherical shape which bulges both downward and radially outward with respect to the peripheral cylindrical portion positioned above the bottom portion 43A. It is possible to enter. Further, at the lower end portion of the circumferential cylindrical portion of the piston guide 43, an abutting portion 43E whose outer diameter gradually decreases as it goes upward from the upper surface of the bottom portion 43A is formed.
A lower end portion of the piston guide 43 is formed with a pair of communication holes 43B for communicating the inside of the piston guide 43 with the inside of the cylinder 42. The communication holes 43B are formed on both sides of the central axis O in the radial direction. The communication hole 43 </ b> B is located above the lower end of the closing portion 52, and the communication with the inside of the upper cylindrical portion 63 of the cylinder 42 is blocked.
Similarly, at the upper end portion of the piston guide 43, a pair of through holes 43C for communicating the inside of the piston guide 43 and the inside of the cylinder 42 are formed. Similarly to the communication hole 43B, the through holes 43C are formed on both sides of the central axis O in the radial direction. The through hole 43 </ b> C opens toward the inner circumferential surface of the transition portion 12 </ b> A of the stem 12.
Further, in the portion of the piston guide 43 located on the upper side of the through hole 43C, an engagement groove 43D engaged with the engagement projection 12B of the stem 12 is formed over the entire circumference. Thus, the piston guide 43 moves up and down together with the stem 12.

The guide cylinder 45 is disposed coaxially with the central axis O and is divided into two in the vertical direction. The guide cylinder 45 includes a lower member 45a and an upper member 45b. The stem 12 is inserted into the lower member 45a so as to be movable downward, and the lower end of the mounting cylinder 31 is inserted into the upper end of the upper member 45b so as to be movable downward.
The lower member 45 a has a cylindrical outer cylindrical portion 71 and a cylindrical inner cylindrical portion 72 disposed radially inward of the outer cylindrical portion 71. The outer cylindrical portion 71 and the inner cylindrical portion 72 are disposed coaxially with the central axis O.
The outer cylindrical portion 71 is externally fitted to the rising cylindrical portion 62, and the inner cylindrical portion 72 is fitted in the rising cylindrical portion 62. The upper end of the inner cylindrical portion 72 is connected to the upper end of the outer cylindrical portion 71. At the lower end of the inner cylindrical portion 72, a flange portion 73 projecting inward in the radial direction is provided. A second packing 76 is interposed between the lower end (flange portion 73) of the inner cylindrical portion 72 and the top wall portion 61.

The upper member 45 b is formed in a cylindrical shape. The outer peripheral surface of the upper member 45b is provided with a collar portion 74 projecting outward in the radial direction. The portion of the upper member 45 b located below the collar 74 is rotatably fitted in the lower member 45 a in the circumferential direction, and the collar 74 is mounted on the upper end of the inner cylindrical portion 72 from above It is hit.
The upper member 45 b is further provided with an operation piece 75 and a longitudinal groove 79. The operation piece 75 is protruded forward from the upper member 45b. By moving the operation piece 75 in the circumferential direction, the upper member 45 b can be rotated in the circumferential direction with respect to the lower member 45 a. The vertical groove portion 79 is formed on the inner peripheral surface of the upper member 45 b. The longitudinal groove 79 is provided over the entire length of the upper member 45 b in the vertical direction, and is open at the upper end opening edge of the upper member 45 b. Of the upper end opening edge of the upper member 45b, a portion avoiding the opening of the vertical groove portion 79 approaches or abuts on the lower end edge of the vertical rib 31a from below. Thereby, the downward movement of the discharge head 13 is restricted.

  The support portion 15 supports the pressing member 16. The support portion 15 is provided to project rearward from the outer cylindrical portion 71, and has a pair of side wall portions 77 disposed at intervals in the left-right direction, and a rear wall formed at the rear end of the side wall portion 77. And a unit 78. In the present embodiment, the supporting portion 15 is erected on the mounting cap 11 in a state of being integrally formed with the guide cylinder 45, but the supporting portion 15 is integrally formed with the mounting cap 11 and from the mounting cap 11 It is also possible to set up directly.

  The side wall 77 extends upward gradually from the front side toward the rear side. The side wall portion 77 is formed in a plate shape whose front and back surfaces face in the left-right direction. The rear end portion of the side wall portion 77 rises upward with respect to a portion positioned on the front side of the rear end portion, and the outer surface of the rear end portion has a cylindrical shape extending outward in the left-right direction. A shaft 77A is provided in a protruding manner. In a portion of the side wall portion 77 located on the front side of the rear end portion, a mounting concave portion 77B which is recessed downward is provided.

The pressing member 16 (trigger) is attached to the support portion 15 via a shaft 77A, and is provided rotatably (rockably) around a rotation axis L which is a central axis of the shaft 77A.
The pressing member 16 includes a top plate portion 81 covering the discharge head 13 from above, a rear plate portion 82 extending obliquely downward from the rear end edge of the top plate portion 81, and a front end edge of the top plate portion 81. A front plate portion 83 extending obliquely downward from the front, and a pair of side plate portions 84 suspended separately from the left and right side edges of the top plate portion 81.

An elongated hole 83A extending in the vertical direction is formed in the upper portion of the front plate 83, and the nozzle cylinder 32 of the head main body 30 is inserted through the elongated hole 83A. Further, the lower side portion of the front plate portion 83 is a finger hook portion for putting a finger or the like.
The pair of side plate portions 84 sandwich the discharge head 13 and the support portion 15 in the left-right direction. At a rear portion of the side plate portion 84, an axial hole portion 84A in which a shaft body 77A is slidably inserted around the rotation axis L is formed.

  Here, the ejection head 13 is connected to the pressing member 16 so as to be linked to the vertical movement of the pressing member 16 around the rotation axis L. In this embodiment, as the pressing member 16 rotates the pressing member 16 downward, the shaft portion 33 (pressed portion) formed on the discharge head 13 is pressed to move the discharge head 13 downward. The pressing unit 85 is formed.

The shaft portion 33 is formed in a cylindrical shape, and protrudes from the upper end portion of the mounting cylindrical portion 31 toward the side plate portion 84 separately in both the left and right directions.
The pressing portion 85 is provided on the inner side surface of the side plate portion 84. The pressing portion 85 is a pair of plate-like members sandwiching the mounting cylindrical portion 31 from the left and right sides, and an arc-shaped pressing notch in which the shaft 33 is slidably fitted around the axis at the lower end of the pressing portion 85 A portion 85A is formed. The pressing cutout portion 85A is formed in an arc shape that is convex upward in a front view as viewed from the left and right direction. The pressing notch 85A is in contact with the shaft 33 from above.

The biasing means 90 is a synthetic resin extending body 91 having one end 91A connected to the support portion 15 and the other end 91B connected to the ejection head 13. The extension bodies 91 are respectively disposed between the side plate portions 84 and the ejection head 13 at intervals in the left-right direction (see FIG. 4). The extension body 91 is curved with one end 91A located rearward with respect to the other end 91B and located below. The extension body 91 is curved so as to protrude rearward. The extension body 91 is formed in a curved columnar shape. One end portions 91A of the extension bodies 91 are connected by a connecting body 92 extending in the left-right direction. The coupling body 92 is formed in a cylindrical shape, and is rotatably supported by the mounting recess 77B. One end 91 A of the extension body 91 is connected to the support portion 15 via the connecting body 92. The other end portion 91B of the extension body 91 is curved so as to protrude downward and supports the shaft portion 33 (pressing engagement projection) from below in a state of being elastically deformed downward. ing.
The connection between the one end portion 91A of the extension body 91 and the support portion 15, and the connection between the other end portion 91B of the extension body 91 and the pressing member 16 are not limited to the above-described configuration, A configuration may be adopted.
For example, one end 91A of the extension body 91 and the support portion 15 may be integrally formed, or the other end 91B of the extension body 91 and the pressing member 16 may be integrally formed. Further, one end 91A of the extension body 91 may be adhered to the support portion 15, or may be fitted into a hole formed in the support portion 15. Further, the other end 91 B of the extension body 91 may be bonded to the pressing member 16 or may be fitted into a hole formed in the pressing member 16 or the like.

Next, the usage method of the dispenser 1 of the above structures is demonstrated.
First, the upper member 45b is rotated in the circumferential direction with respect to the lower member 45a using the operation piece 75, and a portion of the upper end opening edge of the upper member 45b where the longitudinal groove 79 opens is the lower end edge of the longitudinal rib 31a. Let them face each other. Thus, the restriction on the downward movement of the discharge head 13 is released. Thereafter, a finger or the like is put on the finger hook portion of the front plate portion 83 of the pressing member 16 and the pressing member 16 is rotated downward around the rotation axis L as shown in FIG. When the pressing member 16 is rotated downward, the pressing portion 85 of the pressing member 16 presses the shaft portion 33 of the ejection head 13 while the extension body 91 is elastically deformed, and the vertical rib 31 a is in the vertical groove portion 79. While moving the stem 12 downward. Here, a piston guide 43 is attached to the stem 12, and an elastic member 25 provided on the stem 12 is in contact with the piston 41. Thereby, the stem 12, the piston guide 43 and the piston 41 integrally descend with respect to the cylinder 42. Therefore, while the closed portion 52 of the piston 41 closes the communication hole 43B of the piston guide 43, the inside of the upper cylindrical portion 63 of the cylinder 42 is pressurized.

  If the stem 12 and the piston guide 43 are further depressed while the internal pressure of the upper cylinder 63 of the cylinder 42 is increased to a predetermined pressure, the downward movement of the piston 41 is suppressed due to the increased internal pressure of the upper cylinder 63. Ru. Thereby, the length of the elastic member 25 in the vertical direction is shortened while the elastic member 25 slides so that the free end thereof warps inward in the radial direction along the receiving surface 53A of the piston 41. Thus, the stem 12 and the piston guide 43 start to move downward with respect to the piston 41. Further, the bottom portion 43A of the piston guide 43 enters into the straight cylinder portion 67 of the middle cylinder portion 64, and descends while approaching or sliding on the vertical rib portion 67A.

  When the stem 12 and the piston guide 43 are moved downward with respect to the piston 41, the lower end of the closed portion 52 of the piston 41 is separated from the contact portion 43E of the piston guide 43 (see FIG. 6). Thus, a gap is formed between the lower end portion of the blocking portion 52 and the outer peripheral surface of the piston guide 43, and the communication hole 43B is opened to the inside of the upper cylindrical portion 63 of the cylinder 42 through the gap. . The internal pressure of the upper cylinder portion 63 further increases until the communication hole 43B is opened to the inside of the upper cylinder portion 63 of the cylinder 42.

Thus, the contents in the upper cylindrical portion 63 flow into the piston guide 43 through the gap between the inner peripheral surface of the closed portion 52 and the outer peripheral surface of the piston guide 43 and the communication hole 43B. Further, the content in the upper cylindrical portion 63 is the gap between the inner peripheral surface of the closed portion 52 and the outer peripheral surface of the piston guide 43, the lower portion of the stem 12 and the inner peripheral surface of the transition portion 12A and the piston guide 43. The air flows into the piston guide 43 through the gap between it and the outer peripheral surface of the piston and the through hole 43C. The content that has flowed into the piston guide 43 flows in the upper portion of the stem 12 to reach the nozzle cylinder 32, and is discharged from the discharge hole 13A of the nozzle cylinder 32.
Incidentally, due to the increased internal pressure of the upper cylindrical portion 63 and the contents filled in the upper cylindrical portion 63, the downward movement of the piston 41 occurs when the upper cylindrical portion 63 is not filled with contents. It may be suppressed at the upper position in comparison. In such a case, the communication hole 43B may be opened to the inside of the upper cylindrical portion 63 of the cylinder 42 before the bottom portion 43A of the piston guide 43 enters the straight cylindrical portion 67.

  Subsequently, when the finger or the like pulled the pressing member 16 is removed, the extension body 91 is restored and deformed, and the discharge head 13 and the piston guide 43 are restored and moved upward. As a result, the pressure in the upper cylinder portion 63 of the cylinder 42 is reduced, the valve body 44 floats up, and the lower portion of the middle cylinder portion 64 is opened, and the contents in the container body 2 pass through the tube 69 and the middle cylinder portion 64. It flows into the inside, and flows into the upper cylindrical portion 63 through between the longitudinal rib portions 67A and between the valve body 44 and the restriction projection 68A. Further, since the pressing portion 85 of the pressing member 16 and the shaft portion 33 of the discharge head 13 are in contact with each other, the shaft portion 33 presses the pressing portion 85 upward by the discharge head 13 moving upward. The pressing member 16 rotates upward about the rotation axis L and returns to the original position shown in FIG.

When the dispenser 1 is used for the first time, the contents are not filled in the upper cylindrical portion 63 of the cylinder 42, the stem 12 and the piston guide 43. Therefore, it is necessary to fill contents in the upper cylindrical portion 63 of the cylinder 42, the stem 12 and the piston guide 43.
For that purpose, the upper member 45b is rotated in the circumferential direction with respect to the lower member 45a in the same manner as described above to release the restriction on the downward movement of the discharge head 13, and the pressing member 16 is rotated downward to rotate the stem 12. Push down. When the communication hole 43B is opened to the inside of the upper cylinder portion 63 of the cylinder 42, the air filling the inside of the upper cylinder portion 63 passes through the communication hole 43B and the through hole 43C as described above. And flows into the piston guide 43. The air that has flowed into the piston guide 43 flows in the upper portion of the stem 12 to reach the nozzle cylinder 32, and is discharged from the discharge hole 13A of the nozzle cylinder 32. Thereafter, when the finger or the like pulling the pressing member 16 is removed, the discharge head 13 and the piston guide 43 are raised by the biasing force of the extension body 91. As described above, the pressure in the upper cylindrical portion 63 is reduced, and the valve body 44 floats up to open the lower portion of the middle cylindrical portion 64. Thus, the contents in the container body 2 are supplied into the upper cylindrical portion 63. .
By repeating the downward rotation of the pressing member 16 in this manner, the contents are filled in the upper cylindrical portion 63 of the cylinder 42, the stem 12 and the piston guide 43.

  Here, since the extension body 91 is disposed between the support portion 15 and the discharge head 13, as in the prior art, the biasing member is disposed in the cylinder of the pump to be in contact with the contents. It can prevent. Therefore, it becomes possible to freely select the type of contents stored in the container body 2.

As described above, the dispenser 1 according to the present embodiment can be applied to various types of contents.
Further, since the extension body 91 is made of synthetic resin, it is possible to reduce the time and effort of sorting when the discharger 1 is discarded. Furthermore, since it is not necessary to arrange the extension body 91 in the cylinder 42, the length of the cylinder 42 can be easily shortened, and the overall size of the pump 14 and the discharger 1 can be easily reduced.

Further, since the other end 91 B of the extension body 91 is connected to the shaft portion 33 formed in the discharge head 13, for example, one of the other end 91 B of the extension body 91 and the discharge head 13 The discharge device 1 can be easily assembled since it is not necessary to rotatably fit the shaft portion formed on the other to the bearing hole formed on the other.
In addition, since the other end 91 B of the extension body 91 supports the shaft 33 formed on the discharge head 13 from the lower side, the configuration can be simplified.

  Further, since the shaft 33 also serves as a pressed portion pressed by the pressing member 16 and a pressed engaging projection supported from below by the other end 91 B of the extension body 91, the configuration is further simplified. And the size of the dispenser 1 can be further reduced.

  Further, since the other end portion 91B of the extension body 91 is coupled to the shaft portion 33 in a state of being elastically deformed downward, the elastic force can be given to the extension body 91 in advance. The discharge head 13 can be constantly urged upward. For this reason, after discharging the contents, it is easy to immediately return the pressing member 16 and the discharge head 13 to their original positions, and the discharge operability can be improved. Furthermore, since it is possible to suppress the pressing member 16 from rotating downward with a slight force, it is difficult to eject the contents by mistake.

The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope.
For example, although the stem 12 and the head body 30 are separately formed in the above embodiment, the present invention is not limited to this, and the stem and the head body may be integrally formed.

Moreover, in the said embodiment, although the extension body 91 is formed in columnar shape, it is not limited to this, For example, a cylinder shape, plate shape, etc. may be sufficient as an extension body.
Further, in the above embodiment, the other end portion 91B of the extension body 91 is elastically deformed downward to urge the discharge head 13 upward, but the invention is not limited to this. Absent. The manner in which the extension body 91 is elastically deformed so as to bias the discharge head 13 upward may be changed as appropriate, such as elastic deformation of the entire extension body 91 uniformly.

  Moreover, in the said embodiment, although the other end part 91B of the extension body 91 is supporting the axial part 33 from the downward direction, it is not limited to this. For example, the extension body includes a protrusion, and the discharge head is formed with a hole, and the protrusion of the extension body and the hole of the discharge head are engaged with each other to form the extension body (biasing means). The discharge head may be biased upward.

  Moreover, in the said embodiment, although the pressing part 85 of the pressing member 16 presses the axial part 33 formed in the discharge head 13, it is not limited to this. For example, in a mode in which the pressing portion protruding downward from the lower surface of the top plate portion 81 of the pressing member 16 moves the discharge head 13 downward by pressing the upper portion (pressed portion) of the discharge head 13 It may be.

  Moreover, in the said embodiment, although the axial part 33 (pressed part) is formed in the discharge head 13, and the pressed part 85 is formed in the side plate part 84 of the pressing member 16, it is not limited to this . For example, the shaft (a pressing portion) is formed in the side plate portion of the pressing member, and the pressed portion is formed in the discharge head, thereby moving the discharge head 13 downward with the downward rotation of the pressing member. It may be. In this case, the pressed portion can support the shaft portion from below by using, for example, a U-shaped member protruding from the discharge head 13 toward the side plate portion. Furthermore, this pressed portion can be made to serve as a pressing engagement projection supported from the lower side by the other end portion 91B of the extension body 91.

  In addition, without departing from the spirit of the present invention, it is possible to replace components in the above-described embodiment with known components as appropriate.

  DESCRIPTION OF SYMBOLS 1 ... Dispenser 2 ... Container body 3 ... Opening part 11 ... Mounting cap 13 ... Discharge head 13 A ... Discharge hole 14 ... Pump 15 ... Support part 16 ... Pressing member 33 ... Shaft part (pressed part, pressed engagement protrusion) 84 side plate portion 85 pressing portion 90 biasing means 91 extension body 91A end of extension body 91B end of extension body L rotation axis

Claims (3)

A pump having a discharge head which is disposed at the mouth of the container body containing the contents so as to be movable downward in an upward biasing state and has a discharge hole of the contents opened forward;
A mounting cap for mounting the pump to the mouth of the container body;
A supporting portion erected at the rear of the mounting cap;
And a pressing member disposed on the support portion so as to be rotatable about a rotation axis and pressing down the discharge head.
The discharge head is moved downward by pressing the pressing member and rotating it downward about the rotation axis, and the content is discharged from the discharge hole,
The pressing member is formed with a pressing portion for pressing the pressed portion formed on the discharge head and moving the discharge head downward with the downward rotation of the pressing member.
It said biasing means the discharge head upward biasing has one end connected to the support portion, and Ri other end extending body der made linked synthetic resin to the discharge head,
The other end of the extension body supports from below the pressing engagement projection formed on the discharge head.
Dispenser characterized in that. The pressing member includes a pair of side plate portions sandwiching the discharge head in the left-right direction orthogonal to the front-rear direction,
The discharge head is formed with a shaft portion projecting toward the side plate portion,
The pressing portion is formed on the side plate portion and abuts on the shaft portion from above,
The shaft portion doubles as the pressed portion and the pressing engagement protrusion.
Dispenser according to claim 1, characterized in that. The other end of the extension body is coupled to the discharge head in a state of being elastically deformed downward.
The dispenser according to claim 1 or 2 , characterized in that:

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