JP2003267465A - Liquid dispenser for liquid container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To take out a liquid in a liquid container by an appropriate quantity without using an air pump-type lifting and delivering mechanism which requires a force by manual pressing. <P>SOLUTION: In a liquid dispenser provided on a cap 3 mounted on a bottle opening 2 of the liquid container 1, a liquid lifting and delivering means 10 consisting of a spiral screw 11 and a cylindrical pipe 12 surrounding this spiral screw whose top end parts are respectively projected from a top wall of the cap and bottom end parts are reach close to the bottom part of the container when the cap is mounted on the bottle opening is penetrated through the top wall 4 of the cap and supported. A housing 20 storing both top end parts of the spiral screw and the cylindrical pipe projected from the top wall, a motor 31 for rotating the spiral screw, and a battery 32 for supplying electricity to the motor and provided with a discharging nozzle 21, is mounted on the top wall of the cap. A switch 40 for driving and stopping the motor is provided on this housing. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid dispenser which is attached to a bottle mouth of a container containing liquid such as viscous shampoo, body soap, hand soap and the like to take out an appropriate amount of the liquid inside.

[0002]

2. Description of the Related Art Liquid dispensers of this type have been known for some time. In a known liquid dispenser, an operating punch having an operating piece is erected from the center of the cap attached to the bottle mouth to the upper end, and when the operating punch is pushed down by pushing the operating piece with the palm, the liquid in the container is pushed to the cap by the principle of the air pump. It is designed to flow out from the discharge nozzle provided. Therefore, the palm of one hand receives the liquid discharged from the discharge nozzle, and the other hand pushes down the operating punch together with the operating piece to take out the liquid from the container.

[0003]

Since both hands must be used to take out the liquid in this way, it cannot be used when one hand is closed. Furthermore, since the shampoo, body soap, hand soap, etc. in the container are highly viscous, a considerable force is required to push down the operating punch with the operating piece, and it is difficult for children and the elderly to operate.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 is a liquid dispenser provided in a cap to be attached to a bottle mouth of a liquid container, in which the upper wall of the cap has an upper end portion. Respectively protrude upward from the upper wall, and the lower end penetrates the liquid pumping means consisting of a spiral screw inserted into the container when the cap is attached to the bottle mouth, and a cylindrical tube surrounding the spiral screw. A housing provided with a discharge screw nozzle for supporting and holding a spiral screw driving means for rotating the spiral screw in the liquid pumping means, and for discharging the liquid pumped by the liquid pumping means to the outside. Is characterized by.

According to a second aspect of the present invention, in the liquid dispenser for a liquid container according to the first aspect, the spiral screw driving means transmits the driving force of an electric drive source to rotate the spiral screw. In addition, a switch for driving and stopping the electric drive source is provided at an appropriate position of the housing.

According to a third aspect of the present invention, in the liquid dispenser for a liquid container according to the second aspect, the housing has a lower case with an upper surface opening having an accommodation space for accommodating the spiral screw driving means, It consists of a lid-shaped upper case that closes the upper opening of the lower case,
By providing a thin portion in the upper case made of a material that can be self-restored from the deformation due to external force to the state before the deformation, the switch operating unit can be deformed by the external force and self-restoring to the original state. The external driving force of the spiral screw drive means is turned on by applying external pressure to push the switch into the housing, and by releasing the external pressure to the switch operation part, the switch operation part is restored to the original state and the spiral screw drive means Is characterized in that the electric drive source is switched off.

According to a fourth aspect of the invention, in the liquid dispenser for a liquid container according to any one of the first to third aspects, the discharge nozzle of the housing is
The liquid pumped by the liquid pumping means shall be provided upward so as to reach the discharge port through the upward slope, and the discharge liquid should flow down from the discharge port to the housing body side through the lower surface of the nozzle outer tube. The liquid flow-down preventing means for preventing the above is provided below the discharge port of the discharge nozzle.

According to a fifth aspect of the present invention, in the liquid dispenser for a liquid container according to any one of the first to fourth aspects, the spiral screw of the liquid pumping means and the end portion of the cylindrical pipe. Each of them is provided with an engagement / disengagement means, and is made detachable via an extension spiral screw and an engagement / disengagement means provided at the end of the cylindrical tube, and the pumping path in the liquid pumping means is set according to the depth of the liquid container. The feature is that it can be extended.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, some embodiments of a liquid dispenser for a liquid container according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 6 show a liquid dispenser according to a first embodiment, in which 1 is a container containing a liquid having viscosity such as shampoo, 2 is a bottle mouth of the container 1, and a male screw is provided on the outer periphery. The cap 3 is attached by screwing it into the bottle mouth with an internal thread on the inner circumference.

Reference numeral 10 denotes a liquid pumping means, the upper end of each of which projects upward from the upper wall 4 of the cap 3 and the lower end of which reaches the bottom of the container 1 when the cap is mounted on the bottle mouth 2 and has a vertical axis. 11 and a cylindrical tube 12 surrounding the spiral screw 11.

Reference numeral 20 denotes a housing which is separately molded from plastic and installed on the upper wall 4 of the cap. The spiral screw 11 protruding upward from the upper wall of the cap, the upper ends of the cylindrical tubes 12 and the spiral screw are rotated. A motor 31 as an electric drive source for driving, and a battery 32 for supplying power to the motor
And a discharge nozzle 21 that obliquely downwardly accommodates an electric circuit 33 between the motor and the battery and an electric contact 34 that is always OFF in the circuit, and that causes liquid to flow out from the upper end of the cylindrical tube 12. ing.

The motor 31 is housed in the housing 20 toward the shaft 31 ', and the shaft 11' of the spiral screw 11 projects above the cylindrical tube and is rotatably supported by the housing. The rotation of the motor shaft is kept parallel to the shaft 11 'of the spiral screw, and the reduction gear transmission 35
Then, the spiral screw 11 is rotationally driven. As described above, the housing 20 accommodates the spiral screw driving means including the motor 31, the battery 32, the reduction gear electric motor 35, and the like.

In the illustrated first embodiment, the cylindrical tube 12 has a main tube 13 having a tapered upper end and ending at the upper wall 4 of the cap 3.
And is formed integrally with the housing 20 in a downward direction and has an outer side smaller than the outer side of the main pipe 13, but is fitted to the outer periphery of the narrowed upper end portion 13 'of the main pipe 13 to penetrate the upper wall 4 of the cap. The upper end is composed of the relay pipe 14 which is in communication with the discharge nozzle 21. And the relay pipe 14 which penetrates the upper wall 4 of the cap
In order to prevent the liquid in the container 1 from leaking to the outside through the disk portion 16 that comes into contact with the lower surface of the upper wall of the cap, and is provided downward in the center of the disk portion, An inner plug 15 made of synthetic resin and provided with a fitted cylindrical portion 17 is provided. The lower end of the relay pipe 14 and the lower end of the cylindrical portion 17 of the inner plug 15 come into contact with the stepped portion 13a at the lower end of the upper end portion 13 'of the main pipe 13 as shown in the figure, whereby the inner plug 15 has a cylindrical shape. The cylindrical portion 17 holds the main pipe 13 of the pipe and the relay pipe 14 of the housing, and also serves to tightly hold the cap 3 and the housing 20.

Also, in the illustrated embodiment, the housing 20
Has a flat insole 20 'above the discharge nozzle 21 and a motor 31 is housed on the insole 20' with the shaft 31 'facing upwards. The motor case placed on the insole 20 'covers the motor 31 from above. The shaft 11 ′ protruding upward from the insole 20 ′ of the spiral screw penetrates the motor case 22. This motor case 2
2 is preferably fixed on the insole 20 'with screws or the like. The motor case 22 is fixed by covering the motor or the shaft 11 'before mounting the gear on the shaft 31' of the motor or the shaft 11 'of the spiral screw, and the gears 35a and 35b are then fixed.
Fix on each shaft and engage.

The housing 20 according to the present embodiment.
Is a lower case 23a having an upper opening having an empty portion for accommodating the above-mentioned spiral screw driving means, and a lid-like upper case 2 for closing the upper opening of the lower case 23a.
3b, and the upper case opening of the lower case 23a is closed by a removable upper case 23b. A battery chamber 25 is formed inside the housing by a partition wall 24, and a thin dry battery 32 is vertically accommodated in the battery chamber 25. Battery is 1
It may be a book or a plurality of books connected electrically in series, but in any case, the upper case 23b is removed and the battery is housed in the battery chamber 25. The bottom of the battery chamber 25 is located lower than the insole 20 'of the housing.

The electric circuit 33 for electrically connecting the upper and lower electrodes of the battery and the two terminals 31a and 31b of the motor 31 is in contact with the lower end (ten poles) of the battery at one end at the bottom of the battery chamber 25. And a second contact piece 27 that is provided on the lower surface of the upper case 23b and has one end that contacts the upper end (one pole) of the battery when the lower case 23a is mounted by covering the upper case 23b. .

The first contact piece 26 ascends in the battery chamber along the partition wall 24, then bends and goes through the slit provided in the partition wall, and extends above the insole 20 'by the side of the motor case 22. , The tip reaches below the contact piece 36 whose upper end is fixed to the (+) terminal 31a of the motor.

The other end of the second contact piece 27, which is fixed to the lower surface of the upper case 23b and has one end in contact with the upper end (one pole) of the battery, has a motor when the upper case 23b is mounted on the lower case 23a. The lower end of the (-) terminal 31b comes into contact with the upper end of the auxiliary contact piece 27 '. The contact piece 27 'is vertically fixed to the side surface of the motor case. Each of the contact pieces 26, 27, 27 'and 36 is made of a leaf spring.

The contact piece 36 of the (+) terminal 31a of the motor and the tip of the first contact piece 26 are separated from each other and are always off.
Of the electrical contacts 34 of FIG. Therefore, if the tip end of the first contact piece 26 is pushed up by the switch 40 against elasticity and brought into contact with the contact piece 36 of the (+) terminal 31a of the motor to turn it on, the electric circuit 33 is closed and the motor 31 causes The spiral screw 11 rotates.

The switch 40 is mounted below the housing so as to be vertically movable, and has a switch button 42 which is normally pressed against the upper wall of the cap 3 by a spring 41. The switch button 42 is the discharge nozzle 21 of the housing.
Has a cylindrical portion 43 extending downward from the middle of the rear end and movably fitted to the outer periphery of the relay pipe 14 in the vertical direction at the rear end, and the spring 41 is fitted into the relay pipe 14 and has the upper end at the discharge nozzle 21.
And the cylindrical portion 43 is pushed downward at the lower end. Therefore, the lower surface of the switch button 42 is pressed against the upper wall of the cap 3.

The switch button 42 has an upward long pin (abbreviated as a long pin) 44 and a short pin (abbreviated as a short pin) 45 on the left and right of the front end, and a housing corresponding to both pins. Are long pins 4 on the left and right of the discharge nozzle 21.
There are provided a through hole 28 into which 4 is inserted from below, and a blind hole 29 with a blind upper end into which the short pin 45 is shallowly inserted from below. The upper end of the through hole 28 is located below the tip of the first contact piece 26 that constitutes the electrical contact 34 that is always off. The front end of the switch button 42 projects outward from the upper wall of the cap 3.

Therefore, the front end of the switch button is
When pushed up by the edge of a container for containing the liquid in the container 1, the switch button 42 rises against the lower pressure of the spring 41, and the long pin 44 rises in the through hole 28 accordingly.
The upper end thereof projects upward from the through hole and pushes up the tip end of the first contact piece 26 against the elasticity, and the (+) terminal 31a of the motor
The contact piece 36 of FIG. For this reason, the motor rotates to drive the spiral screw 11 to rotate, so that the viscous liquid in the container 1 rises in the cylindrical tube 12 and flows into the discharge nozzle 21 from the upper end of the cylindrical tube and from the tip of the discharge nozzle. Run down to. This operation continues while the switch button 42 is being pushed up.

When the switch button 42 is pushed up, the short pin 45 hits its upper end against the upper end of the blind hole 29,
It functions as a stopper that prevents the switch button from being pushed further.

When the pushing up of the switch button is stopped, the switch button returns to the lowered position in which it abuts against the upper wall of the cap due to the spring force, and the tip end of the first contact piece 26 separates from the contact piece 36 downward, so that the motor and the spiral are engaged. The rotation of the screw stops. At this time, the viscous liquid is filled between the lower end of the cylindrical tube 12 and the tip of the discharge nozzle 21. In order to prevent the viscous liquid from dripping from the tip of the discharge nozzle 21, if the inner periphery of the tip of the discharge nozzle is enlarged to a tip by a curved taper, a motor, a spiral screw When the rotation of the liquid is stopped and the outflow of the viscous liquid is stopped, the liquid in the enlarged portion 21 'flows down at the end of the flow and there is no liquid in the enlarged portion 21', so that the liquid drops unexpectedly. You can prevent it from falling.

An annular packing 37 is provided in the hole in the inner bottom 20 'of the housing through which the shaft 11' of the spiral screw passes.
May be fitted to prevent the viscous liquid from leaking onto the insole 20 'along the shaft 11'. In addition, a plate-like packing 38 is provided near the upper end of the through hole 28 of the insole 20.
May be laid so as to prevent the front end portion of the first contact piece 26 and the (+) terminal 31a of the motor from being short-circuited with the viscous liquid.

Further, the lower end of the container 1 may be fitted to the inner circumference of the pedestal 5 so that the container can stand upright.

The tip of the discharge nozzle 21 is covered with a stopper 6 when not in use so as to prevent the liquid in the container 1 from being dried, being deteriorated by contact with air, or leaking out when carrying. May be.

The electric circuit 33 of the first embodiment described above is shown in FIG.

Further, an annular packing 39 is attached to the outer periphery of the upper portion of the housing 20 covered by the upper case 23b,
When the lid is put on, the packing 39 may prevent water from entering the inside of the housing.

In the first embodiment, the discharge nozzle 21 is provided downward, but the present invention is not limited to this, and the liquid discharge switch is not limited to being provided in the lower part of the housing. Hereinafter, the liquid dispenser according to the second embodiment will be described in detail with reference to FIG. 7.
The same functions as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the liquid dispenser shown in the second embodiment, a housing 201 composed of a lower case 23a and an upper case 23b is used, and the discharge nozzle 21 projecting from the lower part of the housing 201 receives the liquid pumped by the liquid pumping means. It is provided so as to extend upward to reach the discharge port through the upward slope, and the convex portion 21 is provided as a liquid flow-down preventing means at the lower portion of the discharge port (a portion where the discharge liquid that has not fallen is collected along the peripheral portion of the discharge port). ″ Is provided. This convex portion 2
By providing 1 ″, it is possible to prevent the discharge liquid from flowing down from the discharge port to the housing body side along the lower surface of the nozzle outer tube. As the liquid flow-down preventing means, the convex portion 21 ″ is provided.
However, the recess may be provided, for example. In this way, the front side of the concave portion functions similarly to the convex portion 21 ″, and the liquid can be prevented from flowing down.

The upper case 23b 'is formed of a material such as a soft resin that is self-recovering to the state before the deformation when the external force is removed even if the upper case 23b' is deformed by the external force, and the upper case 23b 'has an appropriate position on the upper surface (for example, By providing a convex thin-walled portion 50a and a pressing portion 50b extending from the lower central surface of the thin-walled portion 50a at a portion near the discharge nozzle 21), a switch capable of being deformed by an external force and self-restoring to the original state The operation unit 50 is used. When an external pressure that pushes the switch operating portion 50 into the housing is applied (pushing with a finger), the pressing portion 50 is pressed.
b pushes the second contact piece 27 downward, the upper end of the auxiliary contact piece 27 'and the second contact piece 27 come into contact, the circuit is closed, and the motor 31 is turned on. On the contrary, when the external pressure to the switch operating unit 50 is released (the pushed finger is released), the thin portion 50a is restored to the original state, the pressing portion 50b is also returned to the original position, and the second contact piece 27 is supplemented. The motor 31 is separated from the upper end of the piece 27 '.
Turns off.

If the switch operating portion 50 is provided as a part of the upper case 23b 'in the housing 201 as in the present embodiment, the cost can be reduced as compared with the case where the switch operating portion is formed by separately providing a button or packing. There is. Further, when the thin portion 50a of the switch operating portion 50 is torn or the proper self-restoration function is impaired, only the upper case 23b 'need be replaced.
The lower case 23a and the like can be continuously used. Further, if the switch operating section 50 is provided at a position where it can be operated while receiving the liquid discharged from the discharge port of the discharge nozzle 21, it can be used with one hand.

Next, an example will be described with reference to FIG. 8 in which the liquid pumping means can be continuously connected as a joint structure so as to be a liquid dispenser which can be used universally for liquid containers of various depths. . For example, the connecting liquid pumping means 10 including the spiral screw 11b and the cylindrical tube 12b is provided on the side of the liquid pumping port 51a which is the lower end portion of the connected liquid pumping means 10a including the spiral screw 11a and the cylindrical tube 12a.
The connecting pipe 52 provided on the upper end side of b is attached. At this time, the connection projections 53b, 53b provided on the upper end surface of the spiral screw 11b of the connecting liquid pumping means 10b are connected to the connection recesses 53a, 53a provided on the lower end surface of the spiral screw 11a of the connected liquid lifting means 10a. The insertion positions of the connection concave portions 53a and the connection convex portions 53b are adjusted in advance so that the spiral screw 11a and the spiral screw 11b are connected to each other while maintaining an appropriate spiral state by being inserted.

As described above, by connecting the connected liquid pumping means 10a and the connecting liquid pumping means 10b in series, the liquid pumping port 51a which is the lower end of the opening of the connected liquid pumping means 10a. Is extended to the liquid pumping port 51b which is the lower end of the opening of the connecting liquid pumping means 10b, and the pumping path of the liquid pumping means as a whole can be extended. In the above example, the connection liquid feeding means 1 and the connection concave portions 53a and 53a provided on the lower end surface of the spiral screw 11a of the connection liquid feeding means 10a.
The connecting protrusions 53b, 53b provided on the upper end surface of the spiral screw 11b of 0b are shown as an example of the engaging / disengaging means, but the invention is not limited to this, and for example, a screw pumping or other liquid pumping function is provided. Any configuration may be used as long as it can be continuously installed without damage. Further, a connection recess may be provided on the lower end surface of the spiral screw 11b of the connecting liquid pumping means 10b so that another connecting liquid pumping means can be connected in series.

In each of the above-mentioned embodiments, the driving power of the electric driving source is covered by the battery and the driving / stopping is constituted by the contact type switch, but the invention is not limited to this. Hereinafter, the liquid dispenser according to the third embodiment will be described in detail with reference to FIG. The same functions as those of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

The liquid dispenser according to the present embodiment is an AC / D that converts a commercial AC power supply into a DC power supply that is appropriately stepped down.
Connect the cord 54b of the C conversion adapter 54a to the housing 20.
A control board 56 is provided in the lower case 23a 'in which a power cord insertion hole 55 leading to the inside 2 is provided, and this control board 56 utilizes the electric power supplied from the AC / DC conversion adapter 54a to make a contactless sensor. 57 is operated, and the motor 31 is turned on based on the detection output from the non-contact sensor 57. It should be noted that the power cord insertion hole 55 is sealed by an appropriate sealing means, and the housing 20
The airtightness inside 2 may be increased.

The non-contact type sensor 57 is the discharge nozzle 2
In order to detect that the hand has come to the position of receiving the liquid from the first discharge port, for example, it is arranged at the lower portion of the base end of the discharge nozzle 21 so that the extending direction of the discharge nozzle 21 becomes the detection range. There is. Further, in this embodiment, the shaft 31 ′ of the motor 31 is directly connected to the shaft 11 ′ of the spiral screw 11 by the rubber tube 58. When the liquid to be pumped using the liquid pumping means 10 including the spiral screw 11 and the cylindrical tube 12 has a low viscosity, the spiral screw 1
Since it is necessary to rotate 1 at a high speed, it may be desirable to adopt a configuration in which the rotation of the motor 31 is directly transmitted to the spiral screw without the reduction mechanism as in the present embodiment. Moreover, by eliminating the need for the speed reduction mechanism and changing the built-in battery to the external power source, the accommodation space of the spiral screw driving means in the lower case 23a 'can be greatly reduced, so that the housing 202 can be made compact and lightweight.

In each of the above-mentioned embodiments, the spiral screw driving means using the electric driving source is shown, but the invention is not limited to this, and the rotating shaft of the spiral screw is simply rotated. Although a structure in which the operation handle is provided may be used, it is preferable that the liquid can be ejected by a pressing operation with a finger or a palm like the conventional air pump type liquid dispenser. Hereinafter, the liquid dispenser according to the fourth embodiment will be described in detail with reference to FIGS. 10 and 11. The same functions as those of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

The housing 203 of the liquid dispenser according to this embodiment has, for example, a coil spring 6 in the inner space of the main case 23c having a button insertion hole 59 on the upper surface.
0 is inserted, and the retaining portion 61a extending laterally from the lower end edge of the button 61 protruding from the button insertion hole 59 is pressed by the coil spring 60 toward the upper inside of the main case 23c. That is, if the button 61 is pressed against the elastic force of the coil spring 61, the button 61 can be pushed into the main case 23c, and if the pressing is stopped, the coil spring 61 restores the button 61 to its original state. Pushed up.

Further, the spiral groove 11 is prevented from moving up and down by holding the annular groove portion provided at the proper position of the shaft 11 "of the spiral screw 11 by the screw pressing plate 62 arranged in the main case 23c. The spiral screw 11 has a shaft 1 that can be rotated at a fixed position.
1 "is provided with a spiral threaded portion 11" a so as to be engaged with the threaded portion 63a provided on the inner surface side of the annular rotating body 63.

A large number of thin blade-shaped pieces 63b are provided on the outer peripheral surface of the rotating body 63, and a ratchet 61b provided on the inner peripheral surface of the button 61 constitutes a ratchet mechanism which allows rotation only in a fixed direction. . The rotor 61 is held by a rotor pressing plate 64 in a fixed position in the button 61 so as to be rotatable only in a fixed direction.
Is fixed in place by the retaining protrusion 61c of the button 61.

In the liquid dispenser configured as described above, when the button 61 is pressed against the elasticity of the coil spring 60, the screw portion 63a of the rotating body 63 and the screw portion 11 "a of the shaft 11" of the spiral screw 11 are separated. From the occluded state, a rotating force in the direction A in FIG. 11 is generated in the rotating body 63, but this direction cannot be rotated because it is locked by the ratchet mechanism, and as a result, the shaft 11 ″ of the spiral screw 11 is generated. Is rotated in the B direction, and the liquid in the container is pumped as the spiral screw 11 rotates.

The button 61 is attached to the main case 6 as described above.
After pressing into 3c and releasing the pressing force by releasing your hand,
The elastic force of the coil spring 60 raises the button 61. At this time, from the engagement state of the screw portion 63a of the rotating body 63 and the screw portion 11 "a of the shaft 11" of the spiral screw 11,
A rotating force in the direction B in FIG. 11 is generated in the rotating body 63, and the lock by the ratchet mechanism does not work in this direction. Therefore, the rotating body 63 self-rotates and ascends together with the button 61, and spirals. It does not rotate the shaft 11 ″ of the screw 11. That is, it prevents the spiral screw 11 from rotating in the reverse direction when the button 61 rises and forcibly returning the liquid in the cylindrical tube 12 downward. it can.

In the liquid dispenser according to the fourth embodiment described above, the spiral screw drive means is configured without using an electric drive source composed of high-cost parts such as a motor and a power supply, so that it can be provided at low cost. Becomes

Although various embodiments of the liquid dispenser according to the present invention have been described above, they can be applied to liquid containers of various liquids. If a container using an electric drive source is applied to a relatively viscous liquid container such as shampoo, even a weak child or the elderly can easily pump out the liquid with one hand. When applied to a liquid seasoning container such as vinegar or mirin, it can be easily poured into a measuring spoon or the like when cooking. Further, when it is applied to a container of a liquid medicine for beverage, it becomes easy to pour the liquid medicine into a measuring cup during drinking. Further, when applied to the soap liquid supply mechanism of a soap bubble generating toy, the soap liquid can be automatically and continuously supplied.

[0048]

As described above, according to the liquid dispenser of the liquid container of the first aspect, since the spiral screw uses the pumping means including the cylindrical tube,
By rotating the spiral screw via the spiral screw driving means, the liquid in the liquid container can be pumped and discharged from the discharge nozzle.Therefore, not only high-viscosity liquid such as shampoo and rinse, but also super-liquid such as grease It is also possible to pump up highly viscous fluids. Moreover, even if a large amount of liquid for discharge is contained in a relatively large container, the load when rotating the spiral screw does not become extremely large. It can also effectively prevent children and the elderly from having difficulty in operating like the liquid dispenser.

Further, according to the liquid dispenser of the liquid container of the second aspect, the spiral screw driving means for driving the spiral screw by the electric driving source which can be driven / stopped by the switch provided at the proper position of the housing is provided. The liquid can be pumped up more easily than in the case of operating the manual spiral screw drive means.

Further, according to the liquid dispenser of the liquid container according to the third aspect, the switch operating portion in which the electric drive source is actuated when pushed by a finger or the like and is stopped when the finger is released is provided in the housing. Since it is provided as a part of the upper case, there is an advantage that the cost can be suppressed as compared with the case where the button and the packing are separately provided to form the switch operation unit. Further, when the thin portion that is the switch operation portion is torn or the proper self-restoration function is impaired, only the upper case needs to be replaced.

According to the liquid dispenser of the liquid container of the fourth aspect, since the liquid flow-down preventing means is provided below the discharge port of the discharge nozzle, the discharge liquid is discharged from the discharge port by providing the discharge nozzle upward. It can be effectively prevented from flowing down to the housing body side along the lower surface of the nozzle outer tube.

According to the liquid dispenser of the liquid container of the fifth aspect, the spiral screw and the cylindrical tube for extension are extended by the spiral screw in the liquid pumping means and the engaging / disengaging means provided on the cylindrical tube. Therefore, it is possible to appropriately extend the pumping path in the liquid pumping means in accordance with the depth of the liquid container, and the versatility can be adapted to various liquid containers.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a first embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a vertical sectional front view taken along line III-III in FIG.

FIG. 4 is a plan view of the housing with a lid removed.

FIG. 5 is an explanatory diagram of a battery, a motor, a switch, and an electric contact piece.

FIG. 6 is a circuit diagram of an example of an electric circuit.

FIG. 7 is a vertical side view of the second embodiment.

FIG. 8 is a vertical sectional side view of the liquid pumping means that can be extended.

FIG. 9 is a vertical side view of the third embodiment.

FIG. 10 is a vertical sectional side view of the fourth embodiment.

11 is a cross-sectional view taken along line XI-XI of FIG.

[Explanation of symbols]

1 liquid container 2 Bottle mouth of liquid container 3 caps 10 Liquid pumping means 11 Spiral screw of liquid pumping means 12 Cylindrical tube of liquid pumping means 20 housing 21 discharge nozzle 31 motor 32 batteries 33 Electric circuit 34 Electrical contacts that are always off 40 switch

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E014 PA01 PA03 PB03 PB07 PC03                       PD11 PD13 PD30 PE11 PE14                       PE15 PF09 PF10                 3E084 AA04 AA12 AB01 BA01 CA01                       CB02 DA01 DB12 FA09 FB01                       GA01 GB01 KB01 LA17 LB02                       LB07 LC01 LC06 LD21

Claims (5)

[Claims] 1. A liquid dispenser provided on a cap to be attached to a bottle mouth of a liquid container, wherein an upper wall of the cap has an upper end projecting upward from the upper wall and a lower end having the cap attached to the bottle mouth. A spiral screw that is sometimes inserted into the container, and a spiral screw drive means that rotates the spiral screw in the liquid pumping means while supporting the liquid pumping means consisting of a cylindrical tube surrounding the spiral screw. A liquid dispenser for a liquid container, comprising: a housing provided with a discharge nozzle that stores the liquid pumped out by the liquid pumping means to the outside. 2. The spiral screw driving means transmits the driving force of an electric driving source to rotate the spiral screw, and a switch for driving and stopping the electric driving source is provided at an appropriate position of the housing. The liquid dispenser for a liquid container according to claim 1, wherein the liquid container is a liquid dispenser. 3. The housing comprises a lower case having an upper surface opening having an accommodation space for accommodating the spiral screw driving means, and a lid-shaped upper case closing the upper surface opening of the lower case. By providing a thin part in the upper case made of a material that can self-restore to its original state, there is no switch operation part that can be deformed by external force and self-recovery to the original state. The switch of the electric drive source of the spiral screw drive means is turned on by adding, and the switch operation part is restored to the original state by releasing the external pressure to the switch operation part, and the electric drive source of the spiral screw drive means The liquid dispenser for a liquid container according to claim 2, wherein the switch is turned off. 4. The discharge nozzle of the housing is provided in an upward direction so that the liquid pumped by the liquid pumping means reaches the discharge port through the upward slope, and the discharge liquid is discharged from the discharge port to the lower surface of the nozzle outer tube. 4. A liquid flow-down preventing means for preventing the liquid from flowing down to the housing main body side along the flow path is provided below the discharge port of the discharge nozzle.
A liquid dispenser for a liquid container according to claim 1. 5. An engaging / disengaging means is provided at each of the ends of the spiral screw and the cylindrical tube of the liquid pumping means, and is attachable / detachable via the spiral screw for extension and the engaging / disengaging means provided at the end of the cylindrical tube. None. The liquid dispenser for a liquid container according to any one of claims 1 to 4, wherein the pumping path in the liquid pumping means can be extended according to the depth of the liquid container.