JP2017030803A - Discharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharger that can be applied to various types of contents.SOLUTION: A discharger 1 comprises: a pump 14 having a discharge head 13 that is arranged at a mouth part 3 of a container main body 2 storing contents so as to be movable downward while being energized upward and has a discharge hole 13A for the contents which opens forward formed; a fitting cap 11 which fits the pump 14 to the mouth part 3; a supporting part 15 which is erected behind the fitting cap 11; and a pushing-down member 16 that is arranged at the supporting part 15 to be rotatable around a rotation shaft L and pushes down the discharge head 13. The discharge head 13 is connected to the pushing-down member 16 so as to link with vertical movements around the rotation shaft L of the pushing-down member 16. Energizing means 17 that energizes upward the discharge head 13 is an extended body 91 made of synthetic resin, one end part 91a of which is connected to the supporting part 15 and the other end part 91b of which is connected to the pushing-down member 16.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dispenser.

Conventionally, a dispenser shown in the following Patent Document 1 is known. The discharger has a discharge head in which a discharge hole for the contents opened forward is formed at the mouth portion of the container main body in which the contents are accommodated in an upwardly biased state. A pump, a mounting cap for mounting the pump on the mouth, a support portion standing on the rear portion of the mounting cap, and a pressing member disposed on the support portion so as to be rotatable about the rotation axis and depressing the discharge head. I have. In the ejector, by rotating the pressing member downward about the rotation axis, the ejection head moves downward, and the contents are ejected from the ejection hole.
In this type of discharger, generally, an urging means for urging the discharge head upward is a metal coil spring and disposed in a pump cylinder.

JP 2008-030798 A

  However, in the conventional discharger, since the urging means is disposed in the cylinder filled with the content, there is a possibility that the kind of the content to which the discharger can be applied is limited.

  The present invention has been made in view of the above-described circumstances, and aims to be applied to various types of contents.

In order to solve the above problems, the present invention proposes the following means.
A discharger according to the present invention is a discharge in which a discharge hole for a content is formed which is disposed in an upwardly biased state at a mouth portion of a container main body in which the content is accommodated and is opened downward. A pump having a head; a mounting cap for mounting the pump on the mouth; a support portion standing on a rear portion of the mounting cap; and a support member rotatably disposed about a rotation axis. A push-down member that pushes down the head, and by rotating the push-down member downward about a rotation axis, the discharge head moves downward, and the discharge device discharges the contents from the discharge hole. The discharge head is connected to the pressing member so as to be linked to the vertical movement around the rotation axis of the pressing member, and the biasing means for biasing the discharge head upward is connected to the support portion at one end. And the other end is Wherein the serial is extending body made of synthetic resin to be connected to the pressing member.

  According to this invention, the urging means is an extended body in which one end is connected to the support and the other end is connected to the pressing member. Accordingly, it is possible to urge the discharge head upward by the urging means disposed outside the cylinder, and this discharge device can be applied to various types of contents. Further, by arranging the urging means outside the cylinder, for example, it becomes possible to shorten the length of the cylinder as compared with the case where the urging means is arranged in the cylinder, and the entire discharger is compact. Can also be achieved. Furthermore, since the urging means is made of a synthetic resin material, it is possible to easily reduce the time and labor of sorting.

  The other end of the extended body may be coupled to the pressing member in a state of being elastically deformed downward.

  In this case, since the other end portion of the extending body is elastically deformed downward and connected to the pressing member, the pressing member can be effectively biased upward.

  The pressing member includes a pair of side plate portions that sandwich the discharge head in a left-right direction orthogonal to the front-rear direction, and one of the discharge head and the side plate portion protrudes toward the other. And the other is formed with a locking portion for locking the discharge head to at least one of the upward movement and the downward movement of the push-down member by being locked to the shaft portion. Of these, an intermediate portion between the one end portion and the other end portion may be formed with an escape portion straddling the shaft portion downward.

  In this case, since the escape portion is formed in the intermediate portion of the extending body, for example, the length of the entire discharger is shortened compared to the case where the intermediate portion of the extending body passes above the shaft portion. be able to.

  The present invention can be applied to various types of contents.

It is an axial sectional view showing a discharger concerning a 1st embodiment of the present invention. It is the elements on larger scale which show the discharge device of FIG. It is a partial expansion perspective view which shows the lower end part of the stem of FIG. It is a perspective view of the biasing means which comprises the discharge device of FIG. It is an axial sectional view showing the discharge state of the discharger of FIG. It is the elements on larger scale which show the discharge device of FIG. It is an axial sectional view showing a discharger concerning a 2nd embodiment of the present invention. It is an axial sectional view showing the discharge state of the discharger of FIG. It is an axial sectional view showing a discharger concerning a 3rd embodiment of the present invention. FIG. 10 is a half sectional view of the dispenser of FIG. 9 as viewed from the front. FIG. 10 is an axial sectional view showing a discharge state of the discharger of FIG. 9.

(First embodiment)
Hereinafter, a first embodiment of a dispenser according to the present invention will be described with reference to FIGS. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.

As shown in FIG. 1, the dispenser 1 according to the present embodiment has a top cylindrical mounting cap 11 attached to the mouth portion 3 of the container main body 2, and is movable downward in an upward biased state to the mouth portion 3. A pump 14 having a discharge head 13 in which a discharge hole 13A for the contents opened and opening forward is formed, a support portion 15 standing on the rear portion of the mounting cap 11, and rotating to the support portion 15. A pressing member 16 that is rotatably disposed around the axis L and that pushes down the ejection head 13 and an urging means 17 that urges the ejection head 13 upward are provided.
In the ejector 1, by rotating the pressing member 16 downward about the rotation axis L, the ejection head 13 moves downward, and the contents are ejected from the ejection hole 13A. The discharge head 13 includes a cylindrical stem 12 and a head body 30 that is attached to the upper end of the stem 12 and has a discharge hole 13A.

  Here, the mounting cap 11 and the stem 12 are disposed in a state in which their respective 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 body 30 with respect to the stem 12 along the central axis O is the upper direction, and the opposite direction is the lower direction. In addition, a direction orthogonal to the central axis O in a plan view viewed from the central axis O is a radial direction, and a direction around the central axis O is a circumferential direction. Furthermore, the direction in which the ejection holes 13A of the head 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 left-right direction.

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

  As shown in FIGS. 1 and 2, the pump 14 includes a discharge cylinder 13, a double cylindrical piston 41 linked to the stem 12, and a cylindrical cylinder in which the piston 41 is slidably moved up and down. 42, a bottomed cylindrical piston guide 43 that extends downward from the stem 12 and penetrates the inside of the piston 41 in the vertical direction, a spherical valve body 44 disposed in the cylinder 42, and the stem 12 And a cylindrical guide tube 45 that surrounds from the outside.

  The stem 12 is inserted inside the guide tube 45 so as to be movable up and down. The upper portion of the stem 12 protrudes upward from the guide tube 45, and the lower end portion of the stem 12 is connected to the guide tube 45. It protrudes downward from a lower member 45a described later. The inner diameter and outer diameter of the lower end portion of the stem 12 are larger than the inner diameter and outer diameter of the upper portion of the stem 12 and the middle portion in the vertical direction, and the transition portion 12A from the middle portion in the vertical direction to the lower end portion of the stem 12 The inner diameter and the outer diameter gradually increase toward the bottom. Further, on the inner peripheral surface of the upper portion of the stem 12, an engaging protrusion 12B that protrudes radially inward is formed over the entire periphery.

Furthermore, as shown in FIGS. 1 to 3, a guide protrusion 12 </ b> C that protrudes outward in the radial direction is formed at the lower end of the stem 12 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, the elastic member 25 is formed with a plurality of elastic member cutouts 25 </ b> A extending in the vertical direction at intervals in the circumferential direction. Moreover, as shown in FIG.1 and FIG.2, the lower end opening edge of the elastic member 25 inclines so that it may face below as it goes inside from a radial direction outer side.

As shown in FIG. 1, the head main body 30 includes a top cylindrical mounting tube portion 31 mounted on the upper end portion of the stem 12, and a cylindrical shape projecting forward from the front surface of the mounting tube portion 31. Nozzle cylinder portion 32.
On the outer peripheral surface of the mounting cylinder portion 31, a vertical rib 31a extending in the vertical direction is projected. A plurality of the vertical ribs 31a are arranged at intervals in the circumferential direction.
A core rod body 35 extending in the front-rear direction and a crested cylindrical tip 36 attached to the 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 channel grooves 35A that allow the contents to flow between the inner peripheral surface of the nozzle cylinder portion 32 are formed in the front-rear direction.

The tip 36 is disposed coaxially with the core rod body 35, and has a cylindrical tip cylinder portion 37 provided on the outer peripheral surface of the core rod body 35 and an end provided at the tip portion of the tip cylinder portion 37. And a wall portion 38.
The tip cylinder part 37 is fitted in the nozzle cylinder part 32, and the end wall part 38 is in contact with the tip surface of the core bar body 35. A spin channel 38 </ b> A that communicates with the channel groove 35 </ b> A of the core rod body 35 is formed on the rear surface of the end wall portion 38 that is in contact with the tip surface of the core rod body 35. Further, the above-described discharge hole 13A communicating with the spin channel 38A is formed in the central portion of the end wall portion 38.

The piston 41 includes a cylindrical sliding portion 51, a cylindrical blocking portion 52 disposed radially inward of the sliding portion 51, an upper end of the sliding portion 51, and an intermediate portion in the vertical direction of the blocking portion 52. And an annular connecting portion 53 that is annular in a plan view. The sliding part 51, the closing part 52 and the annular connecting part 53 are arranged coaxially with the central axis O.
The lower end portion of the sliding portion 51 is curved so as to gradually warp outward in the radial direction from the top to the bottom, and the lower end of the sliding portion 51 is in sliding contact with the inner peripheral surface of the cylinder 42. Yes.
The lower end portion of the closing portion 52 is curved so as to gradually warp inward in the radial direction as it goes from the upper side to the lower side. It touches. Further, the upper end portion of the closing portion 52 is curved so as to gradually warp outward in the radial direction from the lower side to the upper 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 connecting portion 53 is inclined so as to gradually go downward as it goes from the radially outer side to the inner side, and serves as a receiving surface 53 </ b> A that receives the lower end opening edge of the elastic member 25.

  The cylinder 42 has an annular top wall portion 61 in a plan view, a cylindrical rising cylinder portion 62 extending upward from the top wall portion 61, and downward from an opening edge of the top wall portion 61. A cylindrical upper tube portion 63 extending toward the bottom, a cylindrical middle tube portion 64 extending downward from the lower end of the upper tube portion 63, and a downward direction from the lower end of the middle tube portion 64. An extended cylindrical lower tube 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 portion of the top wall portion 61 is sandwiched between the top wall portion 21 of the mounting cap 11 and the upper end opening edge of the mouth portion 3 of the container body 2 in the vertical direction. A first packing 66 is interposed between the outer peripheral edge portion of the top wall portion 61 and the upper end opening edge of the mouth portion 3.
The rising cylinder portion 62 is erected upward through the opening of the top wall portion 21.
An air hole 63 </ b> A that connects the inside and outside of the upper cylinder portion 63 is formed at the upper end portion of the upper cylinder portion 63. The air hole 63 </ b> A is blocked by the outer peripheral surface of the annular coupling portion 53. Further, the guide protrusion 12 </ b> C of the stem 12 is in contact with or close to the inner peripheral surface of the upper tube portion 63.

The middle tube portion 64 extends downward from the opening edge of the upper tube portion 63, and has a straight tube portion (guide hole portion) 67 whose inner diameter and outer diameter are constant in the vertical direction, and a lower end of the straight tube portion 67. And a taper cylinder portion 68 that extends downward from the top and that decreases in diameter as the inner diameter and the outer diameter decrease from the top to the bottom.
On the inner peripheral surface of the straight tube 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 the straight tube portion 67.
The valve body 44 is detachably disposed on the tapered surface of the tapered cylinder portion 68 inside the tapered cylinder portion 68. Further, on the inner peripheral surface of the tapered tube portion 68, a restricting protrusion 68A that inclines upward as it goes from the radially outer side to the inner side protrudes. The inner diameter of the upper end of the restricting protrusion 68A is smaller than that of the valve body 44. Further, a gap that interrupts the circumferential extension is formed in the restricting protrusion 68A.
A tube 69 through which the contents in the container main body 2 flow is fitted inside the lower cylinder portion 65.

The bottom portion 43 </ b> A of the piston guide 43 is formed in a hemispherical shape that bulges downward and radially outward with respect to the peripheral cylindrical portion located above the bottom portion 43 </ b> A. It is possible to enter. In addition, a contact portion 43E that gradually decreases in diameter as the outer diameter increases upward from the upper surface of the bottom portion 43A is formed at the lower end portion of the peripheral cylindrical portion of the piston guide 43.
A pair of communication holes 43 </ b> B that allow the piston guide 43 and the cylinder 42 to communicate with each other are formed at the lower end of the piston guide 43. The communication holes 43B are formed on both sides sandwiching the central axis O in the radial direction. The communication hole 43 </ b> B is located above the lower end of the closing part 52, and communication with the inside of the upper cylinder part 63 of the cylinder 42 is blocked.
Similarly, a pair of through-holes 43 </ b> C that allow the piston guide 43 and the cylinder 42 to communicate with each other are formed at the upper end of the piston guide 43. The through holes 43C are formed on both sides of the central axis O in the radial direction, similarly to the communication holes 43B. The through-hole 43C opens toward the inner peripheral surface of the transition portion 12A of the stem 12.
In addition, an engagement groove 43D that engages with the engagement protrusion 12B of the stem 12 is formed over the entire circumference of the portion of the piston guide 43 that is positioned above the through hole 43C. Thereby, the piston guide 43 moves up and down together with the stem 12.

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

The upper member 45b is formed in a cylindrical shape. On the outer peripheral surface of the upper member 45b, a flange portion 74 that protrudes outward in the radial direction is provided. A portion of the upper member 45b located below the flange portion 74 is fitted in the lower member 45a so as to be rotatable in the circumferential direction, and the flange portion 74 projects from the upper end to the upper end of the lower member 45a. It has been applied.
The upper member 45b is further provided with an operation piece 75 and a longitudinal groove 79. The operation piece 75 protrudes forward from the upper member 45b. By moving the operation piece 75 in the circumferential direction, the upper member 45b can be rotated in the circumferential direction with respect to the lower member 45a. The vertical groove portion 79 is formed on the inner peripheral surface of the upper member 45b. The vertical groove portion 79 is provided over the entire length of the upper member 45b in the vertical direction, and opens at the upper end opening edge of the upper member 45b. Of the upper end opening edge of the upper member 45b, a portion that avoids the opening of the vertical groove portion 79 is in close proximity to or in contact with the lower end edge of the vertical rib 31a. Thereby, the downward movement of the ejection head 13 is restricted.

The support unit 15 supports the pressing member 16. The support portion 15 has a pair of side wall portions 77 disposed at intervals in the left-right direction, and a rear wall portion 78 formed at the rear end of the side wall portion 77. In the present embodiment, the support portion 15 is erected on the mounting cap 11 in a state of being integrally formed with the guide tube 45, but the support portion 15 is formed integrally with the mounting cap 11, and It is also possible to set up directly.
The side wall part 77 protrudes upward from the rear part of the outer cylinder part 71. The side wall portion 77 gradually extends rearward in the upward direction. The side wall portion 77 is formed in a plate shape whose front and back surfaces are directed in the left-right direction, and a support concave portion 77 </ b> B that is recessed downward is formed at a front end edge facing forward of the outer peripheral edge of the side wall portion 77. A columnar shaft body 77 </ b> A that extends outward in the left-right direction is projected from the outer surface of the upper end portion of the side wall 77.

The pressing member 16 (trigger) is attached to the support portion 15 via a shaft body 77A, and is provided so as to be rotatable (swingable) around a rotation axis L that is the central axis of the shaft body 77A.
The pressing member 16 includes a top plate portion 81 that covers the ejection head 13 from above, a rear plate portion 82 that extends obliquely downward from the rear end edge of the top plate portion 81 toward the rear, and a front end edge of the top plate portion 81. A front plate 83 extending obliquely downward from the front to the front, and a pair of side plates 84 that are individually suspended from the left and right side edges of the top plate 81.
A long hole portion 83A extending in the vertical direction is formed in the upper portion of the front plate portion 83, and the nozzle cylinder portion 32 of the head body 30 is inserted into the long hole portion 83A. The lower portion of the front plate 83 is a finger hooking portion (handle) for placing a finger or the like.
The pair of side plate portions 84 sandwich the ejection head 13 and the support portion 15 in the left-right direction. A shaft hole portion 84A into which the shaft body 77A is slidably inserted around the rotation axis L is formed at the rear portion of the side plate portion 84.

  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 the present embodiment, either one of the ejection head 13 and the side plate portion 84 is formed with a shaft portion 33 that protrudes toward the other, and the other is engaged with the shaft portion 33 so that the ejection head is engaged. A locking portion 85 that links 13 to at least one of the upward movement and the downward movement of the pressing member 16 is formed. In the illustrated example, the shaft portion 33 is formed on the ejection head 13, and the locking portion 85 is formed on the side plate portion 84.

The shaft portion 33 is formed in a columnar shape, and protrudes from the upper end portion of the mounting cylinder portion 31 in both the left and right directions.
The locking part 85 is linked to both the upward movement and the downward movement of the pressing member 16 by being locked to the shaft part 33. The locking portion 85 includes a push-down portion 86 that pushes down the discharge head 13 by being locked to the shaft portion 33, and a pulling portion 87 that pulls up the discharge head 13 by being locked to the shaft portion 33. The pressing portion 86 and the pulling portion 87 are provided on the inner surface of the side plate portion 84.
The pressing portion 86 is a pair of plate-like members that sandwich the mounting cylinder portion 31 from both the left and right sides. An arc-shaped pressing notch in which the shaft portion 33 is slidably fitted around the axis at the lower end of the pressing portion 86. A portion 86A is formed. The push-out notch 86A is formed in an arc shape that is convex upward in a front view as viewed from the left-right direction.
The pulling portion 87 is a pair of protrusions that sandwich the mounting cylinder portion 31 from both the left and right sides. The pulling portion 87 is formed in an arc shape in which the shaft portion 33 is fitted so as to be slidable around the axis. The pull-up portion 87 is formed in an arc shape that protrudes downward in a front view as viewed from the left-right direction.

In the present embodiment, the urging means 17 is a synthetic resin extending body 91 having one end 91 a connected to the support 15 and the other end 91 b connected to the pressing member 16.
The extending body 91 is curved with one end portion 91a positioned behind the other end portion 91b and positioned below. The extending body 91 is curved so as to project toward the rear. The extending body 91 is formed in a curved column shape. A pair of extending bodies 91 are disposed at intervals in the left-right direction, and the ejection head 13 (head body 30) and the support portion 15 are disposed between the pair of extending bodies 91. As shown in FIGS. 1 and 4, the one end portions 91 a of each extending body 91 are connected by a connecting body 92 extending in the left-right direction. The coupling body 92 is formed in a columnar shape extending in the left-right direction, and is rotatably supported in the support recess 77B. An intermediate portion 91c between the one end portion 91a and the other end portion 91b of the extending body 91 extends from the one end portion 91a toward the rear side and curves toward the front side, and then passes through the upper side of the shaft portion 33. To the other end 91b. The intermediate portion 91c forms one arc that protrudes rearward in a side view as viewed from the left-right direction. The other end portion 91b of the extending body 91 is in a state of being elastically deformed downward, and is in contact with the lower surface of the top plate portion 81 of the pressing member 16, so that the other end portion 91b is pressed against the pressing member. 16. The other end 91b is in contact with a portion of the lower surface of the top plate 81 that is connected to the front plate 83, and the movement toward the front of the other end 91b is restricted by the front plate 83. Yes.
The connection between the one end portion 91a of the extending body 91 and the support portion 15 and the connection between the other end portion 91b of the extending body 91 and the pressing member 16 are not limited to the above-described configuration. A configuration may be adopted.
For example, the one end portion 91a of the extending body 91 and the support portion 15 may be integrally formed, or the other end portion 91b of the extending body 91 and the pressing member 16 may be integrally formed. Further, the one end 91 a of the extending body 91 may be bonded 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 extending body 91 may be adhered to the pressing member 16, or may be fitted into a hole formed in the pressing member 16.

Next, a method of using the discharge device 1 having the above configuration will be described.
First, the upper member 45b is rotated in the circumferential direction with respect to the lower member 45a using the operation piece 75, and the portion of the upper end opening edge of the upper member 45b where the vertical groove portion 79 opens is used as the lower end edge of the vertical rib 31a. Make them face each other. Thereby, the restriction | limiting of the downward movement of the discharge head 13 is cancelled | released. After that, 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 against the urging force from the urging means 17 as shown in FIG. . At this time, the other end portion 91 b of the extending body 91 is pushed downward by the top plate portion 81 while being restricted from moving forward by the front plate portion 83. Then, the curvature in the part which is curving so that it may protrude toward the back in the side view in the extension body 91 becomes large, and the elastic deformation amount of the extension body 91 increases. In the present embodiment, the intermediate portion 91c of the extending body 91 is curved so as to form one arc that protrudes rearward, and a large portion is secured, so that the extending body 91 is secured. It is possible to easily increase the durability of the urging means 17 by dispersing the load at the time of deformation.
With the rotation of the pressing member 16, the pressing portion 86 presses the shaft portion 33 of the nozzle cylinder portion 32 downward, and pushes down the discharge head 13 while causing the vertical rib 31 a to enter the vertical groove portion 79. Here, a piston guide 43 is attached to the stem 12, and the elastic member 25 provided on the stem 12 is in contact with the piston 41. As a result, the discharge head 13, the piston guide 43 and the piston 41 are lowered together with the cylinder 42. Therefore, the inside of the upper cylinder portion 63 of the cylinder 42 is pressurized while the closing portion 52 of the piston 41 keeps the communication hole 43B of the piston guide 43 closed.

  If the discharge head 13 and the piston guide 43 are further pressed down while the internal pressure of the upper cylinder portion 63 of the cylinder 42 has increased to a predetermined pressure, the downward movement of the piston 41 is suppressed due to the increased internal pressure of the upper cylinder portion 63. Is done. Accordingly, as shown in FIG. 6, the elastic member 25 slides so that the free end portion of the elastic member 25 warps inward in the radial direction along the receiving surface 53 </ b> A of the piston 41. Thus, the discharge head 13 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 the straight tube portion 67 of the middle tube portion 64 and descends while approaching or sliding on the vertical rib portion 67A.

  When the discharge head 13 and the piston guide 43 are moved downward relative to the piston 41, the lower end of the closing portion 52 of the piston 41 is separated from the contact portion 43E of the piston guide 43. Thus, a gap is formed between the lower end portion of the closing 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 cylinder portion 63 of the cylinder 42 through this gap. . The internal pressure of the upper cylinder portion 63 further increases until the communication hole 43B is opened with respect to the inside of the upper cylinder portion 63 of the cylinder 42.

As a result, the content in the upper cylinder portion 63 flows into the piston guide 43 through the gap between the inner peripheral surface of the closing portion 52 and the outer peripheral surface of the piston guide 43 and the communication hole 43B. Further, the contents in the upper cylindrical portion 63 are the gap between the inner peripheral surface of the closing portion 52 and the outer peripheral surface of the piston guide 43, the lower portion of the stem 12, the inner peripheral surface of the transition portion 12A, and the piston guide 43. It flows into the piston guide 43 through the gap between the outer peripheral surface of the piston rod 43 and the through hole 43C. The contents flowing into the piston guide 43 flow in the upper portion of the stem 12, reach the nozzle cylinder portion 32, and are discharged from the discharge hole 13 </ b> A of the nozzle cylinder portion 32.
In addition, due to the increased internal pressure of the upper cylinder part 63 and the contents filled in the upper cylinder part 63, the downward movement of the piston 41 includes the case where the contents are not filled in the upper cylinder part 63. In some cases, the upper position may be suppressed. In such a case, the communication hole 43B may be opened to the inside of the upper cylinder portion 63 of the cylinder 42 before the bottom portion 43A of the piston guide 43 enters the straight cylinder portion 67.

Subsequently, when the finger or the like that pulled the pressing member 16 is removed, the ejection head 13 and the piston guide 43 are lifted by the biasing means 17. At this time, the extension body 91 is restored and deformed, and the other end portion 91 b of the extension body 91 pushes the top plate portion 81 upward while being restricted from moving forward by the front plate portion 83. Then, the pressing member 16 moves upward, and the pressing member 16 pulls up and raises the discharge head 13 and the piston guide 43 via the pulling portion 87 and the shaft portion 33.
When the discharge head 13 and the piston guide 43 are raised, the inside of the upper cylindrical portion 63 of the cylinder 42 is depressurized, the valve body 44 is lifted, the lower portion of the middle cylindrical portion 64 is opened, and the contents in the container main body 2 are the tube 69 flows into the middle cylinder portion 64 and flows into the upper cylinder portion 63 through the vertical rib portions 67A and between the valve body 44 and the restricting projection 68A. The pressing member 16 is restored and displaced to the original position shown in FIG.

When the discharger 1 is used for the first time, the contents in the upper cylindrical portion 63 of the cylinder 42, the stem 12, and the piston guide 43 are not filled. Therefore, it is necessary to fill the contents in the upper cylindrical portion 63, the stem 12 and the piston guide 43 of the cylinders 42.
For that purpose, similarly to the above, the upper member 45b is rotated in the circumferential direction with respect to the lower member 45a to release the restriction of the downward movement of the ejection head 13, and the pressing member 16 is rotated downward to cause the stem 12 to rotate. Press down. When the communication hole 43B is opened with respect to the inside of the upper cylinder portion 63 of the cylinder 42, the air filling the inside of the upper cylinder portion 63 is routed through the communication hole 43B and the through hole 43C as described above. Then, it 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, reaches the nozzle cylinder portion 32, and is discharged from the discharge hole 13 </ b> A of the nozzle cylinder portion 32. Thereafter, when the finger or the like that pulled the pressing member 16 is removed, the ejection head 13 and the piston guide 43 are lifted by the biasing means 17. As described above, the inside of the upper cylinder part 63 is depressurized, the valve body 44 floats and the lower part of the middle cylinder part 64 is opened, so that the contents in the container body 2 are supplied into the upper cylinder part 63. .
Thus, by repeating the rotation toward the lower side of the pressing member 16, the contents are filled in the upper cylindrical portion 63 of the cylinder 42, the stem 12, and the piston guide 43.

As described above, according to the dispenser 1 according to the present embodiment, the urging unit 17 is extended such that the one end 91 a is connected to the support 15 and the other end 91 b is connected to the pressing member 16. It is a body 91. Thereby, it becomes possible to urge the discharge head 13 upward by the urging means 17 disposed outside the cylinder 42, and the discharger 1 can be applied to various types of contents. Further, by disposing the urging means 17 outside the cylinder 42, for example, the length of the cylinder 42 can be shortened as compared with the case where the urging means 17 is disposed in the cylinder 42. The entire discharger 1 can also be made compact. Furthermore, since the urging means 17 is formed of a synthetic resin material, it is possible to easily reduce the time and labor of sorting.
Further, since the other end portion 91b of the extending body 91 is elastically deformed downward and is connected to the pressing member 16, the pressing member 16 is effectively urged upward. Can do.

(Second Embodiment)
Next, the discharge device of 2nd Embodiment which concerns on this invention is demonstrated with reference to FIG. 7 and FIG.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

  In the dispenser 100 according to the present embodiment, as shown in FIGS. 7 and 8, the intermediate portion 91c of the extending body 91 extends from the one end portion 91a toward the rear side and curves toward the front side, and then the shaft Instead of passing through the upper side of the portion 33 and reaching the other end portion 91b, it passes through the lower side of the shaft portion 33 and reaches the other end portion 91b. And instead of the intermediate portion 91c forming one arc that protrudes rearward in a side view as seen from the left-right direction, the intermediate portion 91c has an escape portion 101 straddling the shaft portion 33 downward. Is formed. The escape portion 101 is curved downward. The escape portion 101 is covered from the outer side in the left-right direction by the side plate portion 84 over the entire length thereof.

  As described above, according to the dispenser 100 according to the present embodiment, since the escape portion is formed in the intermediate portion 91c of the extension body 91, for example, the intermediate portion 91c of the extension body 91 is the shaft portion. Compared with the case where it passes upward, the length of the entire discharger 100 can be shortened.

(Third embodiment)
Next, a discharger according to a third embodiment of the present invention will be described with reference to FIGS.
In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

In the ejector 110 according to the present embodiment, as shown in FIGS. 9 to 11, the pressing portion 86 is engaged with the head main body 30 instead of pushing down the ejection head 13 by engaging with the shaft portion 33. As a result, the ejection head 13 is pushed down.
The pressing portion 86 is formed in a plate shape that extends downward from the top plate portion 81 and that the front and back surfaces face the left-right direction. A pair of pressing parts 86 are arranged at intervals in the left-right direction. The pressing portion 86 abuts against the top surface 30a of the head main body 30 (the mounting cylinder portion 31) from above. The pressing portion 86 is formed in a rectangular shape having a pair of sides extending in the vertical direction when viewed from the left and right directions, and the lower end edge 88 of the pressing portion 86 is disposed on the top surface 30 a of the head body 30. ing. The lower end edge 88 includes a straight portion 88a located on the rear side and a curved portion 88b located on the front side. The straight portion 88a is formed in a straight line extending along the front-rear direction in the plan view. The curved portion 88b gradually extends upward as it goes from the rear side to the front side, and is formed in a curved shape that protrudes downward in the plan view.

  The top surface 30a of the head body 30 is formed in a planar shape that is orthogonal to the central axis O. The top surface 30a is provided with a restricting portion 30b that restricts the movement of the pressing portion 86 in the left-right direction. The restricting portion 30b protrudes upward from the top surface 30a. A pair of restricting portions 30b are provided at intervals in the left-right direction. The pair of restricting portions 30b cover the pressing portion 86 from both sides in the left-right direction. When the pressing portion 86 is about to move in the left-right direction with respect to the head body 30, the pressing portion 86 is abutted against the restricting portion 30b, so that the movement of the pressing portion 86 in the left-right direction is restricted.

  In the pre-operation state before the pressing member 16 is operated, the straight portion 88a is supported by the top surface 30a in the lower end edge 88 as shown in FIG. When the pressing member 16 is operated and the pressing member 16 is rotated about the rotation axis L, the pressing portion 86 also rotates about the rotation axis L as shown in FIG. The portion located on the front side from the located portion gradually comes into contact with the top surface 30a and presses the ejection head 13.

  As described above, according to the ejector 110 according to the present embodiment, the push-down unit 86 pushes down the ejection head 13 by engaging with the head main body 30. Therefore, for example, the shaft portion 33 can be easily reduced in the left-right direction as compared with a case where the pressing portion 86 is locked to the shaft portion 33 to push down the ejection head 13. As a result, the discharger 110 can be made smaller in the left-right direction, and the discharger 110 can be made compact.

  As in the present embodiment, the locking portion 85 is configured to be linked to the vertical movement of the pressing member 16 by being locked to the discharge head 13, and the first embodiment and the second embodiment. Unlike the ejectors 1 and 100 according to the above, it is possible to appropriately adopt a configuration in which the pressing member 16 is linked to the vertical movement by being locked to the head body 30 or the stem 12 instead of the shaft portion 33. In other words, a configuration in which the push-down portion 86 pushes down the discharge head 13 as the push-down member 16 moves downward is appropriately selected, and a configuration in which the discharge head 13 is pulled up as the push-down member 16 moves upward. It can be selected appropriately. For example, as in the present embodiment, the first embodiment, and the second embodiment, at least a part of the locking portion 85 is formed on the side plate portion 84 and locked to the shaft portion 33. A configuration in which the ejection head 13 is linked to at least one of the upward movement and the downward movement of the pressing member 16 may be employed. Further, for example, a configuration in which the engaging portion 85 is engaged not only with the shaft portion 33 but with the head main body 30 or the stem 12 so as to be linked to both the upward movement and the downward movement of the pressing member 16 can be employed.

  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.

  The pump 14 is not limited to the configuration shown in the embodiment. Other configurations of the pump 14 include a discharge head 13 which is disposed in the mouth 3 of the container body 2 so as to be movable downward in an upward biased state and has a discharge hole 13 </ b> A for contents opened forward. Can be employed as appropriate. For example, the head body 30 and the stem 12 may be integrally formed.

In the said embodiment, although the extended part 91 has the one end part 91a located in back and the other end part 91b, it is located below, but this invention is not limited to this. The positional relationship in the front-rear direction and the up-down direction of the one end 91a and the other end 91b of the extending body 91 can be changed as appropriate.
Further, the mode in which the extending body 91 is elastically deformed so as to bias the discharge head 13 upward may be appropriately changed, such as elastically deforming the entire extending body 91 uniformly.

  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.

DESCRIPTION OF SYMBOLS 1,100,110 Discharger 2 Container main body 3 Mouth part 11 Mounting cap 13 Discharge head 14 Pump 15 Support part 16 Depressing member 17 Energizing means 33 Shaft part 84 Side plate part 85 Locking part 91 Extension body 91a One end part 91b Others End portion 91c Intermediate portion L Rotating shaft

Claims (3)

A pump having a discharge head which is disposed in the upwardly biased state at the mouth portion of the container main body in which the content is accommodated and which is movably moved downward and has a discharge hole for the content opened toward the front;
A mounting cap for mounting the pump on the mouth;
A support portion erected on the rear portion of the mounting cap;
A pressing member disposed on the support portion so as to be rotatable about a rotation axis, and a pressing member for pressing down the discharge head,
By rotating the pressing member downward about a rotation axis, the discharge head is moved downward, and the contents are discharged from the discharge holes,
The discharge head is connected to the pressing member so as to be linked to the vertical movement around the rotation axis of the pressing member,
The urging means for urging the discharge head upward is a synthetic resin extending body having one end connected to the support and the other end connected to the pressing member. vessel.   2. The discharge device according to claim 1, wherein the other end portion of the extending body is coupled to the pressing member in a state of being elastically deformed downward. The pressing member includes a pair of side plate portions that sandwich the ejection head in the left-right direction orthogonal to the front-rear direction,
Either one of the discharge head and the side plate portion is formed with a shaft portion projecting toward the other, and the other is engaged with the shaft portion so that the discharge head is held by the pressing member. A locking portion that is linked to at least one of the upward movement and the downward movement is formed,
3. The escape portion straddling the shaft portion downward is formed at an intermediate portion between the one end portion and the other end portion of the extending body. Discharger.

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