JP2007289840A - Pipette type pump dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipette type pump dispenser which can suppress scattering of water drops and appearance of liquid dropping from a nozzle vent immediately after jetting and can attain stable jetting. <P>SOLUTION: The pipette type pump dispenser 100 is provided with a pipette part 10, a nozzle part 20 which is joined to its upper part and a trigger 3 which elastically deforms the pipette part 10. The pipette part 10 repeats elastic deformation based on rotation of the trigger 3 and the pipette part 10 sucks liquid accommodated in a predetermined vessel and the liquid is ejected from the nozzle part 20. The pipette part 10 has a dome 1 which can be elastically deformed, a dome case 2 to which a lower end of the dome 1 is fitted and which has a liquid flow passage part S about at its center and a valve 4 which is fitted to the dome case 2 and which can open and close the flow passage part S. The trigger 3 pushes up the dome case 2, thereby the dome 1 is elastically deformed in a contraction direction to open the flow passage part S. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a spoid pump dispenser.

  There is known a pump dispenser in which a cap attached to a container mouth is provided with a spray head that can move up and down together with a piston, and the spray head is lowered to apply pressure to the liquid in the container and spray the liquid from the nozzle. Yes.

In this pump dispenser, a finger is placed on the spray head while holding the container with a hand, and the liquid is ejected by moving the pump up and down.
For this reason, when the amount of liquid to be ejected is increased or the ejection speed is increased, it is necessary to move and adjust the finger in the vertical direction, which is difficult to operate.

On the other hand, a pump dispenser using a trigger has been developed from the viewpoint of easy operation.
For example, a trigger type pump dispenser is disclosed in which a piston integrated with a nozzle part is pushed down by gripping a trigger to inject liquid in a cylinder from the nozzle part (see, for example, Patent Document 1).

  However, since the trigger type pump dispenser is a type in which the piston is pushed down into the cylinder, friction may be generated between the cylinder and the piston, and the injection may not be stable.

On the other hand, in order to eliminate the friction, the present inventors have a spoid pump dispenser that has a spoid having a pump space and elastic resilience and that discharges or ejects liquid by deforming the spoid. Invented and filed a patent application (see Patent Document 2).
According to this spoid pump dispenser, stable ejection is possible.
JP 2005-219003 A Japanese Patent Application No. 2006-068310

  However, in the pump dispenser described in Patent Document 2, when the internal pressure of the spoid immediately after ejecting the liquid is reduced, water droplets may scatter from the nozzle opening due to the residual pressure in the spoid, or liquid dripping may occur at the nozzle opening. is there.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spoid pump dispenser capable of suppressing the scattering of water droplets from a nozzle port immediately after ejection and the occurrence of liquid dripping and capable of stable ejection. To do.

  The inventors of the present invention have intensively studied to solve the above-mentioned problems. As a result, the pump dispenser is made a spoid type, and the spoid part is pushed up from below to be elastically deformed, and the flow path part is opened and closed when the trigger is pulled. It has been found that the above problem can be solved by adopting a structure that forcibly opens a possible valve, and the present invention has been completed.

That is, the spoid pump dispenser of the present invention includes a spoid part, a nozzle part connected to the upper part of the spoid part, and a trigger that elastically deforms the spoid part, and the spoid part is elastic based on the rotation of the trigger. By repeating the deformation, the spoid part sucks the liquid contained in a predetermined container, and the liquid is ejected from the nozzle part. The spoid part includes an elastically deformable dome and a dome. It has a dome case with a lower end fitted and a liquid channel part in the approximate center, and a valve fitted to the dome case and capable of opening and closing the channel part. A contact portion is provided for contact, and when the trigger pushes up the dome case, the dome is elastically deformed in the reduction direction and the valve is in contact with the contact portion. A flow path unit, characterized in that the opening by Rukoto.
Here, the elastic deformation means that the elastic body is deformed by applying a predetermined force.
By releasing the force, the elastic body is restored to the original shape.

The spoid pump dispenser of the present invention is a trigger type in which the spoid part is elastically deformed by the rotation of the trigger.
That is, in the spoid pump dispenser, by pulling the trigger, the dome case is pushed up and the dome is elastically deformed in the shrinking direction, the liquid in the spoid part is sent to the nozzle part, and the liquid is ejected from the nozzle part. Will be.

Further, in the above-described spoid pump dispenser, when the dome case is pushed up, the valve is brought into contact with the contact portion of the nozzle portion and is forcedly inclined in a predetermined direction.
Thereby, a flow-path part is opened.
Then, when the trigger is released from the pulled state, the spoid part is restored to its original state, resulting in a negative pressure, and the liquid passes from the container through the flow path part and is sent into the spoid part.

Thus, since the dome case is elastically deformed in the reduction direction when the dome case is pushed up, the spoid pump dispenser of the present invention can elastically deform the spoid part without moving the nozzle part.
Therefore, the above-mentioned spoid pump dispenser can easily grasp the sense of distance from the ejected object and can easily determine the range of the range.

  In addition, when the spoid pump dispenser is filled with a liquid, the trigger pushes up the dome case so that the liquid is uniformly compressed in the dome and can be sent to the nozzle portion.

In the spoid pump dispenser, since the valve opens reliably, the liquid can be reliably fed into the spoid.
As a result, the residual pressure in the spoid is surely eliminated, so that it is possible to suppress the splashing of water droplets from the nozzle port immediately after ejection and the occurrence of liquid dripping.

  For these reasons, according to the spoid pump dispenser of the present invention, it is possible to suppress the scattering of water droplets from the nozzle port immediately after ejection and the occurrence of liquid sag, thereby enabling stable ejection.

Furthermore, in the spoid pump dispenser, since the spoid part is a combination of a dome and a dome case, the dome can be easily replaced even when the dome is damaged.
In addition to this, it is also possible to change the size of the dome to a desired size according to the size of the container, the type of liquid, the application, and the like.
In this case, the assembly of the above-mentioned spoid pump dispenser is also simplified.

In the spoid pump dispenser, it is preferable that the upper end of the valve is brought into contact with the contact portion when the trigger is pulled, so that the entire valve is inclined and the flow passage portion is opened.
In this case, the flow path part can be reliably opened.

  In the above-described spoid pump dispenser, it is preferable that the valve includes a disk-shaped base and a support column provided upright in the approximate center of the base, and the upper end of the support column is hemispherical.

After the upper end of the valve is in contact with the contact part of the nozzle part, if the dome case is further pushed up, the upper end of the support column is hemispherical, so the valve gradually tilts along the upper end surface. Become.
Thus, the impact of the valve on the dome case when the valve is opened and closed can be reduced.

  In the above spoid pump dispenser, the dome case includes a large diameter portion and a small diameter portion protruding from the large diameter portion, the lower end of the dome is fitted to the upper surface of the large diameter portion, and the trigger is the large diameter portion. It is preferable that the dome is elastically deformed in the reduction direction by pushing up the lower surface of the lens.

In this case, since the dome case has a large-diameter portion into which the dome is fitted, the spoid portion can have a sufficient capacity.
In addition, since the dome case has a small-diameter portion that protrudes from the large-diameter portion, the spoid pump dispenser can make the spoid portion compact while maintaining the capacity of the spoid portion.

  In the above-described spoid pump dispenser, the trigger includes a gripping part and a bifurcated action part arranged so as to straddle the small-diameter part. It is preferable to push up the majority of the lower surface.

In this case, since the action part of the trigger has a bifurcated shape and is arranged so as to straddle the small diameter part, the large diameter part is pushed up directly.
For this reason, the dome can be elastically deformed reliably and evenly.
Moreover, in the said spoid type pump dispenser, a spoid type pump dispenser can be made more compact by making a trigger into such a structure.

  In the spoid pump dispenser, it is preferable that a dome base is attached to the mouth of the container, and a dome case is inserted into the dome base and is movable.

In this case, since the dome case is inserted into the dome base, the dome case can be moved smoothly.
The spoid pump dispenser of the present invention is easily attached to the mouth of the container via the dome base.

  In the spoid pump dispenser, the trigger is preferably attached to the dome base so as to be rotatable.

  In the above-described spoid pump dispenser, the dome case has an outer wall taper portion on the side surface, the dome base has an inner wall taper portion that can be press-contacted with the outer wall taper portion, and the outer wall taper portion and the inner wall taper are formed by pushing the dome case It is preferable that the outside air and the inside of the container communicate with each other.

In this case, each time the dome case is pushed up (every time liquid is ejected), the outer wall taper portion and the inner wall taper portion are separated from each other so that the outside air communicates with the inside of the container. The negative pressure inside is eliminated.
In other words, accumulation of negative pressure in the container is suppressed.

  In the spoid pump dispenser, a shroud is provided outside the spoid part and the nozzle part, and the shroud is preferably connected by the nozzle part and the dome base.

In this case, the shroud is securely fixed because it is connected at two locations of the nozzle portion and the dome base.
The shroud serves as a protective cover for protecting the elastic spoid part.

  In the spoid pump dispenser, it is preferable that the nozzle portion includes a pressing portion for restraining elastic deformation of the dome from above.

  In this case, since the nozzle portion restrains the dome from elastically deforming, the internal pressure of the spoid portion when the dome is elastically deformed can be improved.

  In the spoid pump dispenser, it is preferable that the dome case includes a guide member for guiding elastic deformation of the dome.

In this case, since the dome case includes the guide member, the shape of the dome when the dome is elastically deformed can be made uniform with respect to the circumferential direction of the dome.
At this time, the amount of the liquid ejected becomes more constant.

  According to the spoid pump dispenser of the present invention, it is possible to suppress the occurrence of water droplets splashing from the nozzle port immediately after ejection and the occurrence of liquid dripping, thereby enabling stable ejection.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.
In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.
Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified.
Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

[First Embodiment]
FIG. 1 is a cross-sectional view showing a first embodiment of the spoid pump dispenser of the present invention.
As shown in FIG. 1, the spoid pump dispenser 100 according to the present embodiment includes a spoid part 10, a nozzle part 20 connected to the upper part of the spoid part 10, and a trigger 3 that elastically deforms the spoid part 10. .

  The spoid part 10 is fitted to the dome case 2 having a liquid flow path part S at a substantially center and a dome case 2 fitted to the elastically deformable dome 1 and the lower end of the dome 1. It consists of a valve 4 capable of opening and closing S.

The dome 1 has a side surface 1a substantially perpendicular to the horizontal plane, a curved portion 1b communicating with the side surface 1a, and a fitting portion 1d for fitting the nozzle portion 20 on the upper end of the dome 1.
In addition, an opening 1c for sending liquid to the nozzle portion 20 is provided in the center of the fitting portion 1d.
The dome 1 is made of an elastically deformable material and has a hollow inside.

The dome case 2 is connected to the periphery of the large-diameter portion 2a and the large-diameter portion 2a having a circular flow passage portion S at the substantially center, and is formed in a cylindrical small-diameter projecting downward. Part 2b.
The dome case 2 has an opening 2c for sucking liquid at the lower end of the small diameter portion 2b.
Therefore, the spoid part 10 has a structure penetrating from the opening 2c at the lower end of the small-diameter part 2b of the dome case 2 to the opening 1c of the dome 1.

  On the upper surface of the large-diameter portion 2a, there are provided a peripheral wall 5a for fitting the dome 1, an inner wall 5b provided inside the peripheral wall 5a, and an annular protrusion 6 for disposing the valve 4. .

The peripheral wall 5a and the inner wall 5b on the upper surface of the large-diameter portion 2a have a predetermined thickness and height so that the lower end of the side surface 1a of the dome 1 is securely fitted.
Thereby, the lower end of the dome 1 is fitted to the upper surface of the large diameter portion 2a.

  On the other hand, the annular protrusion 6 includes an annular tapered portion 6a and a recessed portion 6b. The annular tapered portion 6a is inclined inward, and the recessed portion 6b is recessed in the horizontal direction from the lower end of the annular tapered portion 6a. It has become.

A valve 4 is arranged in the recess 6b so that the flow path S can be opened and closed.
The valve 4 includes a disk-shaped base 4a and a columnar column 4b erected substantially at the center of the base 4a.

The valve 4 is pushed in from above the annular projection 6 and the base 4a of the valve 4 passes through the annular taper 6a and is fitted into the recess 6b.
At this time, since there is a step between the annular tapered portion 6a and the recessed portion 6b, the base 4a of the arranged valve 4 is prevented from coming out.
The valve 4 is movable in the recess 6b.
The flow path portion S can be opened and closed by the movement of the valve 4 in the recess.

The column 4b has a cylindrical shape, and the upper portion of the column 4b reaches the opening 1c. Note that the diameter of the cross section of the support column 4b is smaller than the inner diameter of the opening 1c.
Therefore, even when the trigger 3 pushes up the dome case 2, the support column 4b can move up and down without blocking the opening 1c.

The support column 4b has a sufficient height so as to come into contact with a contact portion of a nozzle portion 20 described later when the dome case 2 is pushed up.
The upper end 4c of the support column 4b is hemispherical, and the upper end 4c comes into contact with the contact portion.

In the spoid pump dispenser 100, an introduction tube 70 for introducing the liquid in the container into the spoid part 10 is inserted into the small diameter part 2b of the dome case 2.
At this time, it is preferable that the introduction tube 70 and the dome case 2 are integrated from the viewpoint of reducing the number of assembling steps.

A nozzle portion 20 is connected to the upper portion of the spoid portion 10. Specifically, the nozzle portion 20 is fitted to the upper portion of the spoid portion 10 at the base portion 21 of the nozzle portion 20.
The nozzle unit 20 includes a nozzle valve 26 that is installed so as to close the flow path and can move in the horizontal direction in the nozzle unit 20, a spring unit 23 having one end connected to the nozzle valve 26, and a spring unit The anti-rotation rib 27 is connected to the other end of the anti-rotation rib 23, and the spinner portion 25 is connected to the anti-rotation rib 27 and is in contact with the spout 24.
The nozzle valve 26, the spring part 23, and the rotation prevention rib 27 are all provided in the nozzle part 20.

  In the nozzle part 20, the base part 21 is in contact with the fitting part 21d for fitting the fitting part 1d of the dome 1 described above, the opening part 21c for feeding the liquid, and the upper end of the valve 4 described above. And a contact portion 22 to be operated.

The nozzle portion 20 is fixed by fitting the fitting portion 1d of the dome 1 into the fitting portion 21d.
The liquid sent from the dome 1 is sent to the nozzle portion 20 through the opening 21c.

The contact portion 22 is formed inside the base portion 21 so that when the dome case 2 is pushed up, a portion other than the apex of the upper end 4c of the support 4b of the valve 4 is contacted.
Further, a recess 28 is adjacent to the contact portion 22 so that the dome case 2 can be further pushed up after the upper end 4c is contacted with the contact portion 22.

The nozzle part 20 has a tapered flow path, and a valve seat 22a is formed in this part.
A nozzle valve 26 is disposed on the valve seat 22a, and the nozzle valve 26 has a tapered shape so as to correspond to the shape of the valve seat 22a.
The nozzle valve 26 can open and close the flow path of the nozzle portion 20.

  Further, a spring portion 23 is connected to the nozzle valve 26 in the length direction of the nozzle portion 20, and the nozzle valve 26 is pressed against the valve seat 22 a by the spring portion 23.

An anti-rotation rib 27 is connected to the other end of the spring portion 23. The rotation prevention rib 27 has a function of preventing the spinner portion 25 connected to the rotation prevention rib 27 from rotating.
The spinner portion 25 has a cylindrical shape, and plays a role of guiding the liquid in the nozzle portion 20 to the ejection port 24.
The spinner portion 25 is in contact with the jet port 24 in a state where the spring portion 23 is extended.

The outer sides of the above-described spoid part 10 and nozzle part 20 are both covered with a shroud 50.
In other words, both the above-described spoid part 10 and nozzle part 20 are housed in the shroud 50.
The shroud 50 is provided with a notch so as not to hinder the movement of the trigger 3.

FIG. 2 is a cross-sectional view taken along the line II of the spoid pump dispenser shown in FIG.
As shown in FIG. 2, the nozzle part 20 has a hook part 22b having a T-shaped cross section in the length direction at the upper part.
The hook portion 22 b is provided in a straight line along the length direction of the nozzle portion 20.

On the other hand, the shroud 50 has a hooked portion 52 corresponding to the hook portion 22 b of the nozzle portion 20, and the hook portion 22 b of the nozzle portion 20 is inserted into the hooked portion 52.
Thereby, the nozzle part 20 and the shroud 50 are being fixed.

In the spoid pump dispenser 100 according to the present embodiment, the trigger 3 is disposed so as to be substantially in contact with the nozzle portion 20.
The trigger 3 is supported by a rotation shaft 42 of a dome base, which will be described later, and is attached so as to be rotatable.

FIG. 3 is a perspective view schematically showing a trigger of the spoid pump dispenser according to the present embodiment.
As shown in FIG. 3, the trigger 3 includes a grip portion 3 a and an action portion 3 b.
The grip portion 3a is disposed below the nozzle portion 20, and has an arcuate shape that warps toward the liquid ejecting direction.
On the other hand, the action part 3b has a bifurcated shape and is arranged so as to straddle the small diameter part 2b.

By pulling the grip portion 3a, the action portion 3b pushes up the lower surface of the large diameter portion 2a without acting on the small diameter portion 2b.
Specifically, an arc-shaped small protrusion 3c is provided at the tip of the action part 3b, and this small protrusion 3c pushes up the lower surface of the large-diameter portion 2a.

At this time, since the small protrusion 3c has an arc shape, when the small protrusion 3c rotates according to the rotation of the trigger 3, the small protrusion 3c gently pushes up the large diameter portion 2a.
Thus, the spoid pump dispenser 100 is operated smoothly.

Returning to FIG. 1, the spoid pump dispenser 100 according to the present embodiment includes a dome base 40 in which the dome case 2 is inserted.
That is, the small-diameter portion 2b of the dome case 2 is inserted into the dome base 40 so that the dome case 2 can move.

In the spoid pump dispenser 100, the dome case 2 has an outer wall taper portion 7 on the side surface, and the dome base 40 has an inner wall taper portion 47 that can be pressed against the outer wall taper portion 7.
The dome case 2 is held by the dome base 40 by the outer wall taper portion 7 and the inner wall taper portion 47 being pressed against each other.

The dome base 40 is fitted into the mouth 80 of the container.
Further, the above-described shroud 50 is engaged with the engaging portion 43 of the dome base 40.

Therefore, the shroud 50 is connected at two locations, that is, the hook portion 22 b of the nozzle portion 20 and the engaging portion 43 of the dome base 40.
For this reason, the shroud 50 is securely fixed.
Further, the shroud 50 serves as a protective cover for protecting the spoid part 10 having elasticity.

  The spoid pump dispenser 100 according to this embodiment is assembled by fitting the shroud 50 from the lateral direction after arranging the spoid part 10, the nozzle part 20, the dome base 40, and the container.

Next, the effect | action which ejects a liquid using the spoid type pump dispenser 100 which concerns on this embodiment is demonstrated.
First, a predetermined liquid is injected into a container (not shown).
The spoid pump dispenser 100 is attached to the mouth 80 of the container in which the liquid is stored.

Examples of the liquid include lotion, perfume, seasoning, hair conditioner, paint, lubricant, cleaning liquid, insecticide and the like.
The container is not particularly limited in shape, material, and the like as long as the spoid pump dispenser 100 can be attached to the mouth 80 of the container.

FIG. 4 is a cross-sectional view showing a state where the trigger of the spoid pump dispenser of FIG. 1 is pulled halfway.
As shown in FIG. 4, the spoid pump dispenser 100 pulls the grip 3a of the trigger 3 in the direction of arrow A, so that the trigger 3 rotates around the rotation shaft 42, and the action portion is interlocked therewith. 3b pushes up the large diameter portion 2a.

As a result, in the spoid part 10, the dome 1 is elastically deformed in the reduction direction by the rise of the large diameter part 2 a, and the pump space S <b> 2 formed by the dome 1 and the dome case 2 becomes small.
At this time, since the pressure of the pump space S <b> 2 increases, the valve 4 is pressed downward in the recess 6 b of the annular protrusion 6.
As a result, the space between the liquid introduction flow path portion S1 in the small diameter portion 2b and the pump space S2 is closed.

Further, when the action portion 3b pushes up the large diameter portion 2a, the dome case 2 rises, and the outer wall tapered portion 7 of the dome case 2 and the inner wall tapered portion 47 of the dome base 40 are separated from each other.
At this time, air enters in the direction of the arrow B from the gap P between the outer wall tapered portion 7 and the inner wall tapered portion 47 which are separated from each other.
For this reason, in the spoid pump dispenser 100 according to the present embodiment, the outside air communicates with the inside of the container, and the negative pressure generated in the container is eliminated.

FIG. 5 is a cross-sectional view showing a state where the trigger of the spoid pump dispenser of FIG. 1 is pulled to the end.
As shown in FIG. 5, the spoid pump dispenser 100 further pulls the grip 3a of the trigger 3 so that the action part 3b further pushes up the lower surface of the large-diameter part 2a of the dome case 2, and the dome 1 further shrinks. The upper end 4c of the valve 4 is brought into contact with the contact portion 22 while being elastically deformed in the direction.

At this time, the upper end 4c of the support column 4b of the valve 4 is brought into contact with the contact portion 22 of the nozzle portion 20 and fitted into the recess portion 28, so that the valve 4 is forcibly inclined in a predetermined direction. .
Thereby, the flow path part S is opened.
That is, since the upper end 4c of the valve 4 is hemispherical, the upper end 4c of the valve 4 is brought into contact with the contact portion 22 of the nozzle portion 20, and when the dome case 2 is further pushed up, the valve 4 receives a component force. The valve 4 is gradually inclined along the surface of the upper end 4c that is hemispherical.
When it comes into contact with the recessed portion 22, the flow path portion S is surely opened.
Here, the opening means that the valve seat 2d of the large diameter portion 2a of the dome case 2 and the base 4a of the valve 4 are separated.

In this case, the contact portion 22 is formed by the edge of the recess 28. The recessed portion 28 is preferably a circular hole. By forming the hole eccentrically from the central axis of the support column 4b of the valve 4, the contact portion 22 applies a component force to the support column 4b. The column 4b is inclined.
In the above-mentioned spoid pump dispenser, a degree of freedom can be given so that the inclination direction occurs in all directions of 360 ° depending on the formation position of the circular hole.

Then, when the gripping part 3a is returned to the original position by eliminating the pulling force on the gripping part 3a, the spoid part 10 is spontaneously restored and deformed to release the elastic energy stored in itself.
At this time, the pump space S2 is enlarged, and a negative pressure is generated in the pump space S2.

  Since the inside of the pump space S2 of the spoid part 10 has a negative pressure, the spoid pump dispenser 100 in which the force to pull the trigger 3 is released has a negative pressure, so that the liquid is discharged from the flow path part S through the introduction tube 70 and the introduction flow path S1 from the container. Is sent into the spoid 10 and filled into the pump space S2.

FIG. 6 is a cross-sectional view showing a state in which a pulling force of the spoid pump dispenser of FIG. 5 is released.
As shown in FIG. 6, when the negative pressure state of the pump space S2 is eliminated, the valve 4 is pressed downward by the water pressure of the liquid in the pump space S2.
As a result, the space between the liquid introduction flow path S1 in the small diameter portion 2b and the pump space S2 is closed again.

  When the operation of pulling the trigger 3 is repeated in this way, the liquid in the pump space S2 is filled with a fixed amount.

Returning to FIG. 1 again, a case will be described in which the pump space S2 is filled with liquid, and the grip portion 3a of the trigger 3 is pulled in this state.
When the grip portion 3a is pulled again in a state where the pump space S2 is filled with the liquid, the dome 1 is elastically deformed in the reduction direction and the pump space S2 is reduced, as described above.
At this time, the liquid in the pump space S2 is compressed, and accordingly, the liquid in the pump space S2 is sent from the opening 1c of the spoid part 10 to the nozzle part 20.

The liquid passes through the opening 21 c of the nozzle unit 20.
At this time, the opening 21c is closed by the nozzle valve 26, but the nozzle valve 26 is moved by the momentum of the liquid to be sent, and the opening 21c is opened.

  As the nozzle valve 26 moves, the spring portion 23 connected to the nozzle valve 26 moves, and the liquid passes through the spinner portion 25 and is ejected vigorously from the ejection port 24.

  Then, when the grip portion 3a of the trigger 3 is returned to the original position again, the flow path portion S is surely opened, so that the liquid is reliably filled again into the pump space S2.

  By repeating this operation, the operation of sucking the liquid filled in the predetermined container by the spoid unit 10 and ejecting the liquid from the nozzle unit 20 is repeated.

As described above, in the spoid pump dispenser 100 according to the present embodiment, when the trigger 3 is pulled, the dome case 2 is pushed up, so that the dome 1 is elastically deformed in the reduction direction. 10 can be elastically deformed.
In other words, according to the spoid pump dispenser 100, it is possible to eject liquid without moving the nozzle portion 20.

  Thereby, according to the spoid type pump dispenser 100 concerning this embodiment, since the nozzle part 20 does not move, it is easy to grasp | ascertain a sense of distance with a to-be-ejected object, and it is easy to determine a range.

  In addition, when the spoid 10 is filled with liquid, the spoid 10 pushes up the dome case 2 so that the liquid is uniformly compressed in the dome 1 (pump space S2) and sent to the nozzle 20. Will be washed away.

In addition, since the valve 4 is opened reliably in the spoid pump dispenser 100, the liquid can be reliably fed into the spoid.
As a result, the residual pressure in the spoid is surely eliminated, so that it is possible to suppress the splashing of water droplets from the nozzle port immediately after ejection and the occurrence of liquid dripping.

  From these facts, according to the spoid pump dispenser 100 of the present invention, it is possible to suppress the scattering of water droplets and the occurrence of liquid dripping from the nozzle opening immediately after the ejection, thereby enabling stable ejection.

In the spoid pump dispenser 100, since the dome case 2 has the large diameter portion 2a into which the dome 1 is fitted, the spoid portion 10 can have a sufficient capacity.
Moreover, since the said dome case 2 has the small diameter part 2b protrudingly formed by the large diameter part 2a, the spoid part 10 can be made compact, maintaining the capacity | capacitance of the said spoid part 10. FIG.

In the spoid pump dispenser 100, the action portion 3b of the trigger 3 has a bifurcated shape arranged so as to straddle the small-diameter portion 2b and directly pushes up the large-diameter portion 2a. It can be elastically deformed.
Moreover, the spoid pump dispenser 100 can be made more compact by making the trigger 3 have such a structure.

In the spoid pump dispenser 100, since the dome case 2 is inserted into the dome base 40, the dome case 2 can be moved smoothly.
Further, every time the dome case 2 is pushed up (every time liquid is ejected), the outer wall taper portion 7 and the inner wall taper portion 47 are separated from each other so that the outside air communicates with the inside of the container, so that the liquid is ejected. The negative pressure in the container due to is eliminated.
In other words, accumulation of negative pressure in the container is suppressed.

Moreover, since the said spoid part 10 combines the dome 1 and the dome case 2, even if the dome 1 is damaged, the dome 1 can be easily replaced.
In addition to this, it is possible to change the size of the dome 1 to a desired size according to the size of the container, the type of liquid, the application, and the like.
Moreover, the assembly of the said spoid pump dispenser 100 is also simplified.

  The material of the dome 1 is preferably a synthetic rubber such as SBR, BR, CR, IIR, EPM, NBR or an elastomer such as EVA, TPS, TPO, TPEE, TPEA, TPE from the viewpoint of durability against repeated deformation.

Synthetic rubbers and elastomers are not only excellent in durability against repeated deformation, but can be modified by mixing various additives.
For example, when a vulcanization process in which sulfur is added to synthetic rubber and elastomer, the dome 1 has effects such as increased elasticity and increased tensile strength.

[Second Embodiment]
Next, a second embodiment of the spoid pump dispenser according to this embodiment will be described.
In addition, the same code | symbol is attached | subjected to the component same or equivalent to 1st Embodiment, and the overlapping description is abbreviate | omitted.

  The spoid pump dispenser according to the present embodiment is the same as that of the first embodiment described above except that the shape of the base portion of the nozzle portion 20 is different.

FIG. 7A is a partial cross-sectional view showing a base portion and a spoid portion in the second embodiment of the spoid pump dispenser of the present invention, and FIG. 7B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state.
As shown in FIG. 7, the base portion 31 of the nozzle portion 20 is attached with a pipe-shaped pressing portion 31 a connected to the end of the base portion 31.
That is, the nozzle portion 20 includes a pressing portion 31a for restraining elastic deformation of the dome 1 from above.

Thereby, when the dome case 2 is pushed up, the nozzle part 20 restrains the shape of the elastic deformation of the dome 1.
For this reason, it is suppressed that the dome 1 bulges upward.
From this, the internal pressure of the spoid part 10 when the dome 1 is elastically deformed can be improved.

[Third Embodiment]
Next, a third embodiment of the spoid pump dispenser according to the present embodiment will be described.
In addition, the same code | symbol is attached | subjected to the component same or equivalent to 1st Embodiment, and the overlapping description is abbreviate | omitted.

  The spoid pump dispenser according to the present embodiment is the same as that of the first embodiment described above except that the shape of the base portion of the nozzle portion 20 is different.

  FIG. 8A is a partial cross-sectional view showing a base portion and a spoid portion in the third embodiment of the spoid pump dispenser of the present invention, and FIG. 8B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state.

As shown in FIG. 8, the base portion 32 has a disk-like pressing portion 32 a attached to the end of the base portion 32.
That is, the nozzle portion 20 includes a pressing portion 32a for restraining elastic deformation of the dome 1 from above.

Thereby, when the dome case 2 is pushed up, the nozzle part 20 restrains the shape of the elastic deformation of the dome 1. For this reason, it is suppressed that the dome 1 bulges upward.
From this, the internal pressure of the spoid part 10 when the dome 1 is elastically deformed can be improved.

[Fourth Embodiment]
Next, a fourth embodiment of the spoid pump dispenser according to the present embodiment will be described.
In addition, the same code | symbol is attached | subjected to the component same or equivalent to 1st Embodiment, and the overlapping description is abbreviate | omitted.

  The spoid pump dispenser according to this embodiment is the same as that of the first embodiment described above except that the dome case 2 includes a guide member 35 for guiding elastic deformation of the dome 1.

  FIG. 9A is a partial cross-sectional view showing a base part and a spoid part in the fourth embodiment of the spoid pump dispenser of the present invention, and FIG. 9B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state.

As shown in FIG. 9, the dome base 2 has a guide member 35 attached along the inner wall of the fitted dome 1.
That is, the dome base 2 includes a guide member 35 for restraining the elastic deformation of the dome 1 from the inside.

Thereby, when the dome case 2 is pushed up, the dome 1 is elastically deformed so as to be guided by the guide member 35.
For this reason, the shape of the dome 1 when the dome 1 is elastically deformed can be made uniform with respect to the circumferential direction of the dome 1.
Moreover, the internal pressure of the spoid part 10 when the dome 1 is elastically deformed can be improved.
Further, in this case, the liquid ejection amount becomes more constant.

[Fifth Embodiment]
Next, a fifth embodiment of the spoid pump dispenser according to the present embodiment will be described.
In addition, the same code | symbol is attached | subjected to the component same or equivalent to 1st Embodiment, and the overlapping description is abbreviate | omitted.

  The spoid pump dispenser according to the present embodiment is the same as that of the first embodiment described above except that the dome 1 is fitted with the peripheral wall 5a of the dome case 2 raised and the inner wall 5b removed.

  FIG. 10A is a partial cross-sectional view showing a base and a spoid in a fifth embodiment of the spoid pump dispenser of the present invention, and FIG. 10B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state.

As shown in FIG. 10, the dome case 38 has a peripheral wall 38a that is high.
For this reason, even if the inner wall 5b is removed, the dome 1 can be sufficiently fitted into the dome case 38.

Thereby, when the dome case 38 is pushed up, the dome 1 is elastically deformed so as to be guided by the peripheral wall 38a.
For this reason, it is suppressed that the dome 1 swells in a horizontal direction.
From this, the internal pressure of the spoid part 10 when the dome 1 is elastically deformed can be improved.

Moreover, when the height of the side surface 1a of the dome 1 is H, the height of the peripheral wall 38a is preferably 1.0H to 1.5H.
In this case, the elastic deformation of the dome 1 can be restrained from the side of the dome 1.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  For example, in the embodiment described above, the contact portion 22 is formed by the side wall of the recessed portion 28, but may be a protrusion.

11A and 11B are cross-sectional views schematically showing another embodiment of the base of the nozzle portion of the spoid pump dispenser of the present invention.
As shown in FIG. 11A, the contact portion 29a may be formed as a cylindrical protrusion provided on the inner surface of the planar base portion 29. As shown in FIG. The contact portion 30 a may be formed as a single protrusion provided on the inner surface of the planar base portion 30.
In either case, the valve 4 is inclined by receiving a component force by the contact portions 29a and 30a, and the flow path portion is opened.

The valve 4 described above includes a disk-shaped base 4a and a columnar column 4b erected substantially at the center of the base 4a. When the dome case 2a is pushed up, the valve contacts the contact portion. The shape of the valve is not particularly limited as long as it is in contact with and inclined.
Specifically, the valve may not include the columnar column 4b.
In this case, in order to incline the valve when the dome case 2a is pushed up, the contact portion may be a long protrusion.

  In the embodiment described above, the spoid part 10 is formed by fitting the dome 1 and the dome case 2, but these may be integrated.

The shape of the trigger 3 is not limited to the bifurcated shape as long as the large diameter portion 2a can be pushed up.
For example, it may be O type, J type, L type, or the like.

A trigger stopper may be engaged with the trigger 3.
Specifically, a recess may be formed on the back surface of the trigger 3, and a trigger stopper may be engaged with the recess.
In this case, the risk of the trigger 3 rotating unintentionally is reduced.

  The mounting part of the spoid pump dispenser according to the second and third embodiments described above, the guide member 35 of the spoid pump dispenser according to the fourth embodiment, or the dome case of the spoid pump dispenser according to the fifth embodiment. 38 may be used together.

FIG. 1 is a cross-sectional view showing a first embodiment of the spoid pump dispenser of the present invention. FIG. 2 is a cross-sectional view taken along the line II of the spoid pump dispenser shown in FIG. FIG. 3 is a perspective view schematically showing a trigger of the spoid pump dispenser according to the present embodiment. FIG. 4 is a cross-sectional view showing a state where the trigger of the spoid pump dispenser of FIG. 1 is pulled halfway. FIG. 5 is a cross-sectional view showing a state where the trigger of the spoid pump dispenser of FIG. 1 is pulled to the end. FIG. 6 is a cross-sectional view showing a state in which a pulling force of the spoid pump dispenser of FIG. 5 is released. FIG. 7A is a partial cross-sectional view showing a base portion and a spoid portion in the second embodiment of the spoid pump dispenser of the present invention, and FIG. 7B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state. FIG. 8A is a partial cross-sectional view showing a base portion and a spoid portion in the third embodiment of the spoid pump dispenser of the present invention, and FIG. 8B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state. FIG. 9A is a partial cross-sectional view showing a base part and a spoid part in the fourth embodiment of the spoid pump dispenser of the present invention, and FIG. 9B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state. FIG. 10A is a partial cross-sectional view showing a base and a spoid in a fifth embodiment of the spoid pump dispenser of the present invention, and FIG. 10B is a dome case pushed up from the state of FIG. It is a fragmentary sectional view showing a state. 11A and 11B are cross-sectional views schematically showing another embodiment of the base of the nozzle portion of the spoid pump dispenser of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Dome 1a ... Side surface 1b ... Curved part 1c, 2c, 21c ... Opening part 1d ... Fit-in part 2,38 ... Dome case 2a ... Large diameter part 2b ... -Small diameter part 2d, 22a ... Valve seat 3 ... Trigger 3a ... Gripping part 3b ... Action part 3c ... Small projection part 4 ... Valve 4a ... Base 4b ... Post 4c ... Upper end 5a, 38a ... Peripheral wall 5b ... Inner wall 6 ... Annular projection 6a ... Annular taper 6b ... Recess 7 ... Outer wall taper 10 ... Spoid 20 ... Nozzle part 21, 29, 30, 31, 32 ... Base part 21d ... Insertion part 22, 29a, 30a ... Contact part 22b ... Hook part 23 ... Spring part 24 ... Jet 25 ... Spinner 26 ... Nozzle valve 27 -Anti-rotation rib 28 ... Depression 31a, 32a ... Pressing part 35 ... Guide member 40 ... Dome base 42 ... Rotating shaft 43 ... Engagement part 47 ... Inner wall taper part DESCRIPTION OF SYMBOLS 50 ... Shroud 52 ... Hook part 70 ... Tube for introduction 80 ... Mouth part of container 100 ... Spoid type pump dispenser S ... Channel part S1 ... Introduction channel S2 ... Pump space P ... Gap

Claims (11)

A spoid part, a nozzle part connected to the upper part of the spoid part, and a trigger that elastically deforms the spoid part, and the spoid part repeats elastic deformation based on rotation of the trigger, A spoid pump dispenser in which the liquid is sucked in the liquid contained in a predetermined container, and the liquid is ejected from the nozzle,
The spoid part is fitted with an elastically deformable dome, a lower end of the dome, and a dome case having the liquid channel part at a substantially center, and is fitted to the dome case to open and close the channel part. Possible valves, and
The nozzle portion is provided with a contact portion for contacting the upper end of the valve,
The spoid type wherein the trigger pushes up the dome case, the dome is elastically deformed in a contracting direction, and the valve portion is brought into contact with the contact portion to open the flow passage portion. Pump dispenser.   The spoid pump dispenser according to claim 1, wherein the upper end of the valve is brought into contact with the contact portion, whereby the entire valve is inclined and the flow passage portion is opened. The valve includes a disc-shaped base and a support column provided upright in the approximate center of the base;
The spoid pump dispenser according to claim 1, wherein the upper end of the support column is hemispherical. The dome case is composed of a large-diameter portion and a small-diameter portion protruding from the large-diameter portion,
The lower end of the dome is fitted to the upper surface of the large diameter portion,
The spoid pump dispenser according to claim 1, wherein the dome is elastically deformed in a reduction direction when the trigger pushes up a lower surface of the large-diameter portion. The trigger consists of a gripping part and a bifurcated action part arranged so as to straddle the small diameter part,
The spoid pump dispenser according to claim 4, wherein by pulling the grip portion, the action portion pushes up a lower surface of the large-diameter portion in conjunction with the grip portion. A dome base is attached to the mouth of the container,
The spoid pump dispenser according to claim 1, wherein the dome case is inserted into the dome base and is movable.   The spoid pump dispenser according to claim 6, wherein the trigger is attached to the dome base so as to be rotatable. The dome case has an outer wall taper on its side surface;
The dome base has an inner wall taper portion that can be pressed against the outer wall taper portion;
The spoid pump dispenser according to claim 6, wherein when the dome case is pushed up, the outer wall taper portion and the inner wall taper portion are separated from each other and the outside air communicates with the inside of the container. A shroud is provided outside the spoid part and the nozzle part,
7. The spoid pump dispenser according to claim 6, wherein the shroud is connected by the nozzle portion and the dome base.   The spoid pump dispenser according to claim 1, wherein the nozzle portion includes a pressing portion for restraining elastic deformation of the dome from above. The spoid pump dispenser according to claim 1, wherein the dome case includes a guide member for guiding elastic deformation of the dome.

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