JP6460939B2 - Dispenser - Google Patents

Description

  The present invention relates to a dispenser.

Conventionally, for example, a dispenser disclosed in Patent Document 1 below is known.
This discharge device has a discharge head in which a discharge hole for a content opening toward the front is formed at the mouth portion of the container main body in which the content is stored. A pump having a pump, a mounting cap for mounting the pump on the mouth of the container body, a support portion standing on the rear portion of the mounting cap, and a support portion rotatably disposed around the rotation axis to push down the discharge head A pressing member.
Since it is constituted in this way, when discharging the contents, the discharge head is moved downward by rotating the pressing member downward about the rotation axis. Thereby, the contents can be discharged to the outside through the discharge holes.

JP 2008-030798 A

By the way, in this type of discharger, generally, a metal coil spring is employed as an urging member for urging the discharge head upward and is disposed in a pump cylinder. Also in the conventional discharger, a metal coil spring is disposed in the cylinder.
However, since the contents are filled in the cylinder, the contents and the metal coil spring come into contact with each other, which may limit the usable contents. That is, there is a possibility that the kind of contents to which the discharger can be applied is limited.

  This invention is made | formed in view of such a situation, Comprising: The objective provides the discharge device which can suppress that the kind of the content accommodated in a container main body produces a restriction | limiting. It is.

(1) In the discharger according to the present invention, a discharge hole is formed at the mouth portion of the container body in which the contents are accommodated so as to be movable downward in an upwardly biased state and open toward the front. A pump having a discharge head, a mounting cap for mounting the pump on the mouth of the container body, a support portion standing upright at the rear of the mounting cap, and a rotatable portion around the rotation axis. And a pressing member that pushes down the ejection head, and rotating the pressing member downward about the rotation axis to move the ejection head downward, and to remove the contents from the ejection hole. A discharger for discharging, and a member for upwardly urging the discharge head is an elastically deformable synthetic resin extension member having one end connected to the support and the other end connected to the push-down member. It is assumed to be a living body, When the pressing member is rotated downward, a pressing part for pressing the pressed part formed on the ejection head is formed. When the downward pressing of the pressing member is released on the ejection head, The first engaging portion formed on the pressing member is engaged to form a second engaging portion that restores and moves the ejection head upward.

  According to the discharger according to the present invention, when the contents are discharged, the pressing member is rotated downward about the rotation axis. Then, as the pressing member is rotated downward, the pressing portion formed on the extending body presses the pressed portion of the ejection head, so that the ejection head can be pushed down and moved downward. Thereby, the content accommodated in the container main body can be discharged outside through the discharge hole of the discharge head.

By the way, since one end part is connected to the support part and the other end part is connected to the pressing member, the extended body is elastically deformed with the downward rotation of the pressing member and stores an elastic force (spring force). . Therefore, after the contents are discharged, when the downward rotation of the pressing member is released (the pressing of the discharge head is released), the extended body is restored and deformed by the elastic force, so that the pressing member is directed upward around the rotation axis. To reverse and return to the original position.
Furthermore, when the pressing member returns to the original position, the second engaging portion formed on the ejection head engages with the first engaging portion formed on the pressing member. In addition, the pressing member and the ejection head can be linked to each other via the second engaging portion. As a result, the pressing member can be restored to the original position, and at the same time, the ejection head can be restored and moved upward. That is, the ejection head can be biased upward using the elastic force of the extended body, and the ejection head can be returned to its original position.

As a result, the pressing member and the ejection head can be quickly returned to their original positions, and can be prepared for the next ejection. In particular, the extending body that upwardly biases the discharge head is made of synthetic resin, and is disposed between the support portion and the pressing member. Therefore, unlike the case where it is arranged in the cylinder of the pump as in the prior art, the contents and the extending body do not come into contact with each other, so that the type of contents can be easily selected. Therefore, it can suppress that a kind arises in the kind of contents stored in a container main part.
Moreover, since the extending body is made of a synthetic resin, it is possible to easily reduce the time and labor involved in discarding the dispenser. Furthermore, since it is not necessary to arrange the extended body in the cylinder, the length of the cylinder can be easily reduced, and the pump and the discharge device can be easily downsized.

(2) 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 the first engagement portion protrudes from the side plate portion toward the discharge head, The second engagement portion may be provided so as to protrude from the ejection head toward the side plate portion.

  In this case, the first engagement portion and the second engagement portion can be easily formed by forming, for example, a shaft portion or a protrusion extending in the left-right direction on the inner surface of the side plate portion and the discharge head. Simplification can be achieved. Furthermore, since the pressing member and the ejection head can be linked to each other via the first engagement portion and the second engagement portion on both the left and right sides of the ejection head, the ejection head can be restored more stably. Can be moved.

(3) The extension body may be connected to the pressing member at the other end in a state of being elastically deformed in advance.

  In this case, since an elastic force can be applied to the extended body in advance, the pressing member can be constantly urged to rotate upward. Therefore, after discharging the contents, it is easy to immediately return the pressing member and the discharge head to their original positions, and the discharge operability can be improved and, for example, continuous discharge of the contents can be easily performed. Furthermore, since it is possible to suppress the pressing member from rotating downward with a slight force, it is difficult to accidentally discharge the contents.

(4) The second engagement portion may be a shaft portion that protrudes from the ejection head toward the side plate portion, and may also serve as the pressed portion.

  In this case, since the shaft portion can also be used as the pressed portion, the configuration can be further simplified and the discharge device can be further miniaturized.

(5) The pressing portion may be disposed above the pressed portion, and the pressed portion may be pressed from above as the pressing member rotates downward.

  In this case, unlike the case where the pressed portion is pressed down from below, for example, the pressed portion can be formed so as to be pressed from above, so that the configuration of the extended body can be further simplified.

  According to the dispenser according to the present invention, it is possible to suppress the restriction on the type of contents stored in the container body.

It is a longitudinal section showing an embodiment of a discharger concerning the present invention. It is the front view which looked at the discharge device shown in FIG. 1 from the front. It is the front view which looked at the discharge device shown in FIG. 1 from the front, Comprising: It is the front view of the state which looked at the pressing member longitudinally. FIG. 2 is a longitudinal sectional view illustrating a state in which a pressing member is rotated downward from the state illustrated in FIG. 1 and a discharge head is pressed down.

  Hereinafter, an embodiment of a discharger according to the present invention will be described with reference to the drawings. 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 of the present embodiment includes a top cylindrical mounting cap 11 attached to a mouth 3 of a container body 2 in which contents (not shown) are accommodated, and a mouth of the container body 2. The pump 14 having the discharge head 13 in which the discharge hole 13A of the contents opened toward the front is formed, and the rear portion of the mounting cap 11 is erected. And a pressing member 16 that is disposed on the support portion 15 so as to be rotatable about the rotation axis L and that pushes down the ejection head 13.

  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 the discharge hole 13A.

The mounting cap 11 and the stem 12 are arranged 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 the direction from the pump 14 toward the stem 12 along the central axis O in FIG. 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.
Further, the direction in which the discharge holes 13A of the discharge head 13 face in the radial direction 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 is a cap for mounting the pump 14 to the mouth 3 of the container body 2. The mounting cap 11 has a top wall 21 having a circular shape in plan view with an opening formed in the center, and a cylindrical peripheral wall 22 extending downward from the outer peripheral edge of the top wall 21. . The top wall portion 21 and the peripheral wall portion 22 are arranged 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. The mounting cap 11 is not limited to the case where the mounting cap 11 is screwed to the mouth portion 3 of the container main body 2, and may be mounted by, for example, undercut fitting.

  The pump 14 includes a discharge head 13, a double cylindrical piston 41 linked to the stem 12, a cylindrical cylinder 42 in which the piston 41 is slidable up and down, and a downward extension from the stem 12. A bottomed cylindrical piston guide 43 that passes through the inside of the piston 41 in the vertical direction, a spherical valve body 44 disposed in the cylinder 42, and a cylindrical guide cylinder 45 surrounding the stem 12 from the outside. Have.

The stem 12 is inserted inside the guide tube 45 so as to be movable up and down. At this time, the upper portion of the stem 12 protrudes upward from the guide cylinder 45, and the lower end portion of the stem 12 protrudes downward from an upper member 45 b described later of the guide cylinder 45.
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. Further, in the transition portion 12A from the vertical middle portion to the lower end portion of the stem 12, the inner diameter and the outer diameter of the stem 12 are gradually enlarged toward the lower side. 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.

At the lower end of the stem 12, a guide protrusion 12C that protrudes outward in the radial direction is formed over the entire circumference. A cylindrical elastic member 25 extends downward from the outer peripheral edge of the guide protrusion 12C.
The elastic member 25 is formed with a plurality of slit-shaped notches 25 </ b> A extending in the vertical direction and opening downward with a gap in the circumferential direction. In addition, the lower end opening edge of the elastic member 25 is inclined so as to go downward as it goes from the radially outer side to the inner side.

The head body 30 includes a top cylindrical mounting cylinder portion 31 mounted on the upper end portion of the stem 12, and a cylindrical nozzle cylinder portion 32 protruding forward from the front surface of the mounting cylinder portion 31. Have.
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. The end wall portion 38 is in contact with the distal end surface of the core rod 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. A discharge hole 13A communicating with the spin flow path 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 having an annular shape in 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 upper side to the lower side. As a result, the lower end of the sliding portion 51 is in sliding contact with the inner peripheral surface of the cylinder 42.
The lower end portion of the closing portion 52 is curved so as to gradually warp inward in the radial direction as it goes downward from above. Thus, the piston guide 43 is in contact with a contact portion 43E formed in the vicinity of a bottom portion 43A described later. The upper end portion of the blocking portion 52 is curved so as to gradually warp outward in the radial direction from the lower side toward 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 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 in a downward direction, a cylindrical middle tube portion 64 extending downward from the lower end of the upper tube portion 63, and further downward 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. At this time, an annular first packing 66 is interposed between 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 closed from the inside of the cylinder 42 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 lower 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 the straight tube portion 67. And a tapered cylindrical portion 68 that extends downward from the lower end and decreases in diameter as the inner diameter and outer diameter decrease from the upper side to the lower side.

  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. A bottom portion (lower end portion) 43 </ b> A (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.
The valve body 44 is a so-called ball valve made of synthetic resin formed into a spherical shape. However, although the valve body 44 may be made of metal, it is preferably made of a synthetic resin from the viewpoint of suppressing the labor of sorting at the time of disposal.

On the inner peripheral surface of the tapered cylindrical portion 68, a restricting protruding portion 68A that protrudes upward as it goes from the radially outer side to the inner side is projected. The inner diameter of the upper end of the restricting protrusion 68A is smaller than that of the valve body 44. As a result, the restricting projection 68A restricts the valve body 44 from coming off upward. In addition, the clearance which interrupts the extension of the circumferential direction is formed in the control protrusion 68A.
A tube 69 through which the contents in the container main body 2 flow is fitted inside the lower cylinder portion 65.

Of the piston guide 43, the bottom 43A located below the piston 41 is formed in a hemispherical shape that bulges both downward and radially outward with respect to the peripheral cylinder located above the bottom 43A. It is possible to enter the straight tube portion 67.
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 communication hole 43 </ b> B that allows the piston guide 43 and the cylinder 42 to communicate with each other is 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, for example. The communication hole 43B is positioned above the lower ends of the contact part 43E and the closing part 52, and communication with the inside of the upper cylinder part 63 of the cylinder 42 is blocked.

A through hole 43 </ b> C for communicating the inside of the piston guide 43 and the inside of the cylinder 42 is formed at the upper end portion of the piston guide 43. The through holes 43C are formed on both sides sandwiching the central axis O in the radial direction, for example, 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.
An engagement groove 43D that engages with the engagement protrusion 12B of the stem 12 is formed over the entire circumference in a portion of the piston guide 43 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. Specifically, 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 part 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 externally fitted to the rising cylinder portion 62. The inner cylinder part 72 is fitted in the rising cylinder part 62, and its upper end is connected to the upper end of the outer cylinder part 71. A plurality of flange portions 73 projecting inward in the radial direction are provided at the lower end of the inner cylinder portion 72 at intervals in the circumferential direction. An annular second packing 76 is interposed between the lower end (flange portion 73) of the inner cylinder portion 72 and the top wall portion 61 of the cylinder 42.

  The upper member 45b is formed in a cylindrical shape, and a collar portion 74 that protrudes radially outward is provided on the outer peripheral surface thereof. 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. The collar portion 74 is abutted against the upper end of the lower member 45a from above.

  The upper member 45b is further provided with an operation piece 75 and a vertical 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 79 is formed on the inner peripheral surface of the upper member 45b over the entire length in the vertical direction of the upper member 45b, 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 portion 15 that supports the pressing member 16 protrudes rearward from the outer tube portion 71 of the guide tube 45, and includes a pair of side wall portions 77 that are spaced apart in the left-right direction, and a side wall portion. 77, and a rear wall portion 78 that connects the rear end edges in the left-right direction.

  The side wall 77 gradually extends upward as it goes from the front side to the rear side. At the upper end of the side wall 77, a protruding piece 80 is formed that protrudes upward in a semicircular shape when viewed from the left and right. A cylindrical shaft body 77A is provided on the outer surface of the projecting pieces 80 so as to project outward in the left-right direction.

A virtual axis passing through the center of the shaft body 77A and extending in the left-right direction is the rotation axis L of the pressing member 16. Further, a reinforcing wall 78a that protrudes upward so as to be located inside the protruding piece 80 and that connects the inner surfaces of the pair of side wall portions 77 and the protruding pieces 80 in the left-right direction is formed on the inner surface of the rear wall portion 78. Is formed.
Of the outer peripheral edge of the side wall 77, a support recess 81 that is recessed downward is formed at the lower end of the front edge facing forward. An extension body 95 to be described later is attached using the support recess 81.

  Thus, since the support part 15 is projected upward and rearward from the rear part of the outer cylinder part 71 in the guide cylinder 45, it is arranged in a state of being erected on the rear part of the mounting cap 11. In the illustrated example, the support portion 15 is erected from the rear portion of the outer tube portion 71 of the guide tube 45, but is not limited to this case, and is, for example, directed upward and rearward from the rear portion of the mounting cap 11. You may make it project.

The pressing member (trigger) 16 is attached to the support portion 15 via a shaft body 77A. Accordingly, the pressing member 16 is connected to the support portion 15 so as to be rotatable (swingable) about the rotation axis L.
The pressing member 16 includes a top plate portion 90 that covers the ejection head 13 from above, a front plate portion 91 that extends obliquely downward from the front edge of the top plate portion 90, and left and right sides of the top plate portion 90. A pair of side plate portions 92 extending downward from the side edge and facing in the left-right direction.
The ejection head 13 is disposed in an internal space surrounded by the top plate portion 90 and the pair of side plate portions 92. Therefore, the pair of side plate portions 92 are arranged so as to sandwich the ejection head 13 from the left-right direction.

  The top plate 90 has a shape that is smoothly curved so as to bulge upward, and its rear end is in contact with the upper opening edge of the rear wall 78 of the support 15 from above. Thereby, the pressing member 16 is positioned in a state where further upward rotation about the rotation axis L is restricted.

As shown in FIGS. 1 and 2, a first through hole 93 that penetrates the top plate portion 90 is formed in the front portion of the top plate portion 90. The first through hole 93 is formed in the central portion of the top plate portion 90 in the left-right direction and is formed to open forward.
Thereby, the front side part of the top-plate part 90 is made into the shape divided into the fork in the left-right direction.

The front plate portion 91 extends obliquely downward from the front end edge of the top plate portion 90 divided into two branches toward the front. At this time, a second through hole 94 is formed in the upper portion of the front plate portion 91 so as to penetrate the front plate portion 91 and extend in the vertical direction. The second through hole 94 is formed in the center portion of the front plate portion 91 and opens upward, and is integrally connected to the first through hole 93.
The nozzle cylinder portion 32 of the head body 30 is inserted into the second through hole 94. Thereby, the nozzle cylinder part 32 protrudes ahead of the front plate part 91 through the second through hole 94. The lower portion of the front plate portion 91 is a finger hook portion for hooking the fingertip.

  As shown in FIG. 1, the pair of side plate portions 92 sandwich the ejection head 13 and the support portion 15 in the left-right direction. A shaft hole portion 92A into which the shaft body 77A is inserted is formed on the inner surface of the rear side of the pair of side plate portions 92. Thereby, the pressing member 16 is supported so as to be rotatable around the shaft body 77A, that is, around the rotation axis L.

The pressing member 16 described above is biased upward by an elastic force (spring force) from the extending body 95 that is a biasing member.
The extending body 95 is made of a synthetic resin, and in the illustrated example, it is formed in a long and curved elastically deformable column shape. The extending body 95 is disposed below the top plate portion 90 of the pressing member 16, one end portion 95 a is connected to the support portion 15, and the other end portion 95 b is connected to the pressing member 16.

This will be described in detail.
The extending body 95 is curved so that the intermediate portion 95c in the longitudinal direction protrudes rearward so that the one end portion 95a is positioned rearward and downward with respect to the other end portion 95b. Is disposed below the top plate portion 90. At this time, as shown in FIGS. 1 and 3, a pair of extending bodies 95 are provided at intervals in the left-right direction so as to be disposed below the bifurcated portion of the top plate portion 90.
In the illustrated example, the one end portions 95a of the pair of extending bodies 95 are connected to each other by a columnar connecting body 96 extending along the left-right direction. Thereby, a pair of extension body 95 and connection body 96 are made into one unit.

  And the said connection body 96 is rotatably supported in the support recessed part 81 formed in the support part 15. As shown in FIG. Thereby, the one end part 95 a of the extension body 95 is connected to the support part 15 through the connection body 96. The other end portion 95 b of the extending body 95 is in contact with the lower surface of the bifurcated portion of the top plate portion 90 from below. As a result, the other end portion 95 b of the extending body 95 is connected to the pressing member 16.

The connection between the one end portion 95a of the extension body 95 and the support portion 15 and the connection between the other end portion 95b of the extension body 95 and the pressing member 16 are not limited to the above-described cases. A configuration (method) may be adopted.
For example, the one end part 95a of the extension body 95 and the support part 15 may be integrally formed, or the other end part 95b of the extension body 95 and the pressing member 16 may be integrally formed. Further, one end portion 95 a of the extending body 95 may be bonded to the support portion 15, or may be fitted into a hole formed in the support portion 15. Furthermore, the other end portion 95 b of the extending body 95 may be bonded to the pressing member 16, or may be fitted into a hole formed in the pressing member 16.

  In particular, the other end portion 95b of the extending body 95 is elastically deformed in advance so that the other end portion 95b side moves downward, and the other end portion 95b is viewed from below with respect to the lower surface of the bifurcated portion of the top plate portion 90. In contact. In addition, in FIG. 1, the state of the extension body 95 before making it elastically deform is shown with the dashed-two dotted line. A state in which the other end portion 95b side has been moved downward in advance, as is apparent by comparing the extended body 95 before elastic deformation with the extended body 95 after elastic deformation (shown by a solid line). The extending body 95 is elastically deformed. Thereby, even if it is the case of normal time, the extending body 95 is urging | biasing the pressing-down member 16 upwards using an elastic force (spring force).

Further, the extending body 95 is formed with a pressing protrusion (pressing portion) 101 for pressing the shaft portion (pressed portion) 100 formed on the ejection head 13.
The shaft portion 100 is formed in a columnar shape as shown in FIGS. 1 and 3, and protrudes from the upper end portion of the mounting cylinder portion 31 toward the pair of side plate portions 92. That is, the shaft part 100 is provided so as to protrude from the upper end part of the mounting cylinder part 31 along the left-right direction.

  The pressing protrusion 101 protrudes downward from the extending body 95 and is disposed above the shaft portion 100. On the lower surface of the pressing projection 101, a concave portion 101a having a concave curved surface that is recessed upward is formed. The pressing protrusion 101 is in contact with the shaft portion 100 from above with the inner peripheral surface of the recess portion 101 a being in surface contact with the outer peripheral surface of the shaft portion 100.

Accordingly, when the pressing member 16 is rotated downward about the rotation axis L, the extension body 95 is elastically deformed so that the other end portion 95b of the extension body 95 is moved downward accordingly. The shaft portion 100 can be pushed down from above using 101. Therefore, the ejection head 13 can be moved downward.
When the downward rotation of the pressing member 16 is released, the extending member 95 urges the pressing member 16 upward as described above, so that the pressing member 16 moves upward about the rotation axis L. To reverse and return to the original position.

  By the way, when the pressing member 16 releases the downward rotation of the pressing member 16, the pressing member 16 engages with the shaft portion 100 formed on the discharge head 13, and the discharge head 13 is moved upward via the shaft portion 100. An engaging convex portion (first engaging portion) 102 to be restored and moved is formed. The shaft portion 100 also functions as an engaging member (second engaging portion) with which the engaging convex portion 102 is engaged.

  The engaging convex portion 102 protrudes from the inner surface of the pair of side plate portions 92 of the pressing member 16 toward the ejection head 13 and is disposed below the shaft portion 100 so as to be lower than the shaft portion 100. Is touching. In the example shown in the figure, the engaging convex portion 102 is formed in an arc shape when viewed from the front when viewed from the left-right direction.

  When the pressing member 16 is rotated downward, the engaging convex portion 102 is slightly spaced downward from the shaft portion 100 (see FIG. 4), but thereafter the pressing member 16 is rotated upward. Along with this, the shaft portion 100 is gradually approached from below and comes into contact with the shaft portion 100 to push the shaft portion 100 upward. Thereby, the ejection head 13 can be moved upward.

(Effect of dispenser)
Next, the usage method of the discharge device 1 comprised as mentioned above 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 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.
Thereafter, the pressing member 16 is rotated downward about the rotation axis L. At this time, for example, while pressing the fingertip on the finger hook portion of the front plate portion 91 of the pressing member 16, the pressing member 16 is rotated downward against the urging force of the extending body 95 as shown in FIG. .

When the pressing member 16 is rotated downward, the extending body 95 is elastically deformed so that the other end portion 95b is pushed downward by the top plate portion 90. At this time, the forward movement of the other end portion 95 b of the extending body 95 is restricted by the front plate portion 91. Therefore, the extended body 95 can be appropriately elastically deformed without being displaced.
In the present embodiment, the intermediate portion 95c of the extended body 95 is curved so as to draw one arc that protrudes rearward, and a large bending range is secured. It is possible to easily increase the durability of the extended body 95 by dispersing the load.

Further, as described above, as the pressing member 16 rotates, the extension body 95 is pushed downward on the other end 95b side, so that the pressing projection 101 of the extension body 95 pushes the shaft portion 100 downward. Then, the ejection head 13 is pushed down while the vertical rib 31a is advanced into the vertical groove 79.
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 piston guide 43 and the piston 41 are integrally lowered with respect to the cylinder 42 by pushing down the discharge head 13. Therefore, the inside of the upper cylinder portion 63 of the cylinder 42 is pressurized in a state where the closing portion 52 of the piston 41 closes the communication hole 43B of the piston guide 43.

When the discharge head 13 and the piston guide 43 are further pushed down in a state where the internal pressure of the upper cylindrical portion 63 of the cylinder 42 has increased to a predetermined pressure, the downward movement of the piston 41 is caused by the increased internal pressure of the upper cylindrical portion 63. Deterred.
Thereby, as shown in FIG. 4, the elastic member 25 slides so that its free end warps radially inward along the receiving surface 53 </ b> A of the piston 41, while the elastic member 25 moves vertically. It shrinks and deforms so that its length becomes shorter. Further, 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. As a result, a gap is formed between the lower end portion of the closing portion 52 and the outer peripheral surface of the piston guide 43. Therefore, 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 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 include 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 and 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. As a result, the contents accommodated in the container body 2 can be discharged to the outside through the discharge holes 13A.

  In addition, due to the increased internal pressure of the upper cylinder part 63 and the contents accommodated in the upper cylinder part 63, the downward movement of the piston 41 is the case where the contents are not accommodated 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.

  As described above, the extension body 95 is elastically deformed with the downward rotation of the pressing member 16 and stores an elastic force (spring force). When the rotation is released (the pressing of the ejection head 13 is released), the extending body 95 is restored and deformed by the elastic force, whereby the pressing member 16 rotates backward around the rotation axis L and returns to the original position. Start to do.

  At this time, since the engaging convex portion 102 formed on the side plate portion 92 moves upward together with the pressing member 16, it engages with the shaft portion 100 formed on the ejection head 13 side from below. Therefore, the pressing member 16 and the ejection head 13 can be linked to each other via the engaging convex portion 102 and the shaft portion 100. Thereby, when returning the pressing member 16 to the original position, the ejection head 13 can be restored and moved upward. That is, the ejection head 13 can be biased upward using the elastic force of the extending body 95, and the ejection head 13 can be returned to the original position.

As a result, as shown in FIG. 1, the pressing member 16 and the ejection head 13 can be quickly returned to their original positions, and can be prepared for the next ejection.
When the discharge head 13 and the piston guide 43 are raised, the inside of the upper cylinder portion 63 of the cylinder 42 is depressurized, the valve body 44 is lifted, and the lower portion of the middle cylinder portion 64 is opened. As a result, the contents in the container main body 2 flow into the middle cylinder portion 64 through the tube 69, pass through between the vertical rib portions 67 </ b> A and between the valve body 44 and the restricting projection 68 </ b> A. Flows in.

In particular, the extension body 95 that urges the discharge head 13 upward is made of synthetic resin, and is disposed between the support portion 15 and the pressing member 16 (arranged outside the cylinder 42). And the extension body 95 are not in contact with each other. Therefore, it is easy to freely select the type of contents, and it is possible to prevent the type of contents stored in the container body 2 from being restricted.
Moreover, since the extending body 95 is made of a synthetic resin, it is possible to easily reduce the time and labor of sorting when the discharger 1 is discarded. Furthermore, by arranging the extending body 95 outside the cylinder 42, for example, the length of the cylinder 42 can be easily reduced as compared with the case where the extending body 95 is arranged inside the cylinder 42, and the overall size of the discharge device 1 can be reduced. It is easy to plan.

  Further, since the extension body 95 is elastically deformed in advance and the other end portion 95b is connected to the pressing member 16, an elastic force can be applied to the extension body 95 in advance, and the pressing member 16 is directed upward. Can always be urged to rotate. Therefore, after the contents are discharged, it is easy to immediately return the pressing member 16 and the discharge head 13 to their original positions, so that the discharge operability can be improved and, for example, continuous discharge can be easily performed. Furthermore, since it is possible to suppress the pressing member 16 from rotating downward with a slight force, it is difficult to accidentally discharge the contents.

  In addition, since the pressing member 16 and the discharge head 13 can be linked to each other via the shaft portion 100 and the engaging convex portion 102 on both the left and right sides of the discharge head 13, the discharge head 13 can be stably restored upward. Can be moved.

  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 pump 14 is not limited to the configuration of the above embodiment. As the pump 14, another configuration having a discharge head 13 that is disposed in the mouth portion 3 of the container body 2 so as to be movable downward in an upward biased state and that has a discharge hole 13 </ b> A that opens forward is appropriately employed. Is possible. For example, a pump having a discharge head in which the head body 30 and the stem 12 are integrally formed may be used.

  Moreover, in the said embodiment, although the one end part 95a of the extension body 95 is located back and downward with respect to the other end part 95b, it is not limited to this case, One end of the extension body 95 You may change suitably the positional relationship of the front-back direction and the up-down direction of the part 95a and the other end part 95b. Further, the mode in which the extending body 95 is elastically deformed so as to urge the discharge head 13 upward may be changed as appropriate, for example, the entire extending body 95 may be elastically deformed uniformly.

Further, the extending body 95 is not limited to a columnar shape, and may be a cylindrical shape or a thin plate shape, for example. In the above-described embodiment, the ejection head 13 is moved downward by the pressing projection 101 of the extending body 95 pressing the shaft portion 100 from above as the pressing member 16 rotates downward. The ejection head 13 may be moved downward by pressing the nozzle cylinder portion 32 of the main body 30 from above.
Further, instead of pressing down the shaft portion 100 from above using the pressing protrusion 101, the shaft portion 100 may be pressed down by pulling down the shaft portion 100 from below, for example.

  Further, when the downward rotation of the pressing member 16 is released, the engaging convex portion 102 is brought into contact with the lower portion of the shaft portion 100 to push the shaft portion 100 upward, and the ejection head 13 is restored and moved upward. However, the present invention is not limited to this case.

  For example, a shaft portion (first engagement portion) is projected from the side plate portion 92 of the pressing member 16 toward the discharge head 13, and is engaged from the upper end portion of the mounting cylinder portion 31 of the discharge head 13 toward the side plate portion 92. You may make a convex part (2nd engaging part) project. In this case, the engagement convex portion may be disposed above the shaft portion. Even in this case, when the downward rotation of the pressing member 16 is released, the shaft portion comes into contact with and engages from below the engaging convex portion. The ejection head 13 can be restored and moved upward. Therefore, the same effect as the above embodiment can be achieved.

In the above embodiment, the nozzle cylinder portion 32 of the ejection head 13 is inserted into the second through hole 94 formed in the pressing member 16. However, the second through hole 94 and the nozzle cylinder portion 32 are used. The ejection head 13 may be restored and moved upward using
For example, the nozzle cylinder part 32 and the second through hole 94 are formed so that the opening edge part of the second through hole 94 and the outer peripheral surface of the nozzle cylinder part 32 are close to each other, and When the rotation is released, the opening edge portion of the second through hole 94 may be engaged with the outer peripheral surface of the nozzle cylinder portion 32 to push up the nozzle cylinder portion 32 upward.
Even in this case, the ejection head 13 can be restored and moved upward. Therefore, in this case, the opening edge portion of the second through hole 94 functions as the first engagement portion, and the outer peripheral surface of the nozzle cylinder portion 32 functions as the second engagement portion.

DESCRIPTION OF SYMBOLS L ... Rotating shaft 1 ... Discharger 2 ... Container main body 3 ... Mouth part 11 of container main body 11 ... Mounting cap 13 ... Discharge head 13A ... Discharge hole 14 ... Pump 15 ... Supporting part 16 ... Pressing member 92 ... Side plate part 95 ... Extension Body 95a ... One end portion of the extended body 95b ... Other end portion of the extended body 100 ... Shaft portion (pressed portion, second engaging portion)
101 ... Pressing protrusion (pressing part)
102 ... Engaging convex portion (first engaging portion)

Claims (5)

A pump having a discharge head that is disposed at the mouth of the container main body in which the contents are stored so as to be movable downward in an upwardly biased state and has a discharge hole that opens forward.
A mounting cap for mounting the pump on the mouth of the container body;
A support portion erected at the rear 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,
A discharger that moves the discharge head downward by rotating the pressing member downward about the rotation axis, and discharges the contents from the discharge hole;
The member that upwardly biases the discharge head is an elastically deformable synthetic resin extending body having one end connected to the support and the other end connected to the pressing member,
The extending body is formed with a pressing portion that presses the pressed portion formed on the ejection head as the pressing member rotates downward.
When the downward rotation of the push-down member is released, the discharge head is engaged with a first engagement portion formed on the push-down member, and the second engagement moves the discharge head upward. A discharger characterized in that a part is formed. The dispenser according to claim 1, wherein
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,
The first engagement portion is provided to project from the side plate portion toward the ejection head,
The ejector according to claim 1, wherein the second engagement portion projects from the ejection head toward the side plate portion. The dispenser according to claim 1 or 2,
The extension body has the other end connected to the pressing member in a state of being elastically deformed in advance. The dispenser according to claim 2,
The second engagement portion is a shaft portion that protrudes from the discharge head toward the side plate portion, and also serves as the pressed portion. The dispenser according to any one of claims 1 to 4,
The ejector according to claim 1, wherein the pressing part is disposed above the pressed part and presses the pressed part from above as the pressing member rotates downward.

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