JP3242614U - liquid dispenser - Google Patents

Abstract

A liquid dispenser capable of continuously discharging liquid in a container without repeating troublesome pushing operations, and even when the remaining amount of liquid in the container is small, the amount of liquid to be discharged can be reduced. To surely discharge liquid without scattering. A liquid dispenser includes a wall fixing lower case member (10) and an upper case unit member (12). A check valve 20 is provided on the bottom surface portion 10BW so as to pass through the back surface portion and the bottom surface portion 10BW of the wall fixing lower case member 10, and when the liquid dispenser LD is attached to the wall surface WS, the back surface portion opens. The position of the cavity 20TH of the check valve 20 is set above the liquid surface LS of the liquid contained in the upper case housing chamber 12C and the lower case housing chamber 10A and the discharge nozzle member . [Selection drawing] Fig. 3

Description

The present invention relates to liquid dispensers.

In a wall-mounted container having a magnet mounting portion, for example, as shown in Patent Document 1, a container body integrally formed of polyethylene terephthalate and a pouring container closed with a screw-type lid on the upper end of the container body. It has been proposed to have an inlet, and a cylindrical large discharge port and a small discharge port that are opened and closed by an extraction port of a rotating lid provided at the lower end of the container body. In such a wall-mounted container, when the outer periphery of the container body is lightly pressed, the shampoo or the like stored inside the container body is taken out from the large or small discharge port that is opened.

Further, as for the wall-mounted container, instead of the magnet mounting portion, for example, as shown in Patent Document 2, a liquid soap dispenser is proposed to be mounted on the wall surface with a suction cup.

Such a liquid soap dispenser has a container made of synthetic resin with a pouring hole in the upper part for storing the liquid soap in the liquid storage space inside, and an opening large enough to fit the container. A cover molded of a semi-rigid member that covers the container portion of the container, a nozzle whose upstream end is fitted into the pouring hole of the container and has a discharge port at the most downstream end, and a fitting portion of the nozzle. a pipe detachably connected to the liquid storage space and inserted into the liquid storage space so that the central axis is parallel to the wall surface; and a suction cup integrally formed with the cover. In such a configuration, the pressure in the liquid storage space is increased by pushing the dome-shaped portion of the container fitted in the cover, which has a uniform thickness, so that the liquid soap is forced into the pipes and nozzles. It is poured out through the outlet.

Further, in an elastically squeezable container, a base having an orifice with a self-closing slit valve has been proposed, as shown in FIG. 5 of Patent Document 3, for example.

Japanese Patent No. 4998812 Japanese Patent No. 4717714 Japanese Patent No. 6938603

In the wall-mounted container shown in the aforementioned Patent Document 2, the dome-shaped portion of the container is pushed once from the outside, and a predetermined amount of liquid soap is poured out through the outlet of the pipe and nozzle. If the predetermined amount of liquid soap is less than the amount desired by the user, after the dome-shaped portion of the container returns to its initial state, the dome-shaped portion of the container is repeatedly pushed from the outside, causing the user to It is necessary to pour out the liquid soap until the desired amount of liquid soap is reached, which is troublesome.

If the amount of liquid soap remaining in the liquid storage space is less than the original amount due to consumption of the liquid soap, when the dome-shaped portion of the container is pushed away from the central portion, the liquid The pressure in the storage space does not rise sufficiently, and as a result, the amount pushed into the pipe decreases, so the amount pushed up through the discharge port of the pipe and nozzle and discharged to the outside becomes extremely smaller than the initial predetermined amount. There is also fear.

In consideration of the above problems, the present invention is a liquid dispenser that can continuously discharge the liquid in the container without repeating the troublesome pushing operation, and furthermore, the residual amount of liquid in the container is small. To provide a liquid dispenser capable of reliably discharging liquid without variation in discharge amount even when the amount of liquid is reduced.

In order to achieve the above object, a liquid dispenser according to the present invention has a top cover member molded of a soft material that can be pressed, and a liquid storage chamber that stores liquid therein. An upper case unit member having a discharge nozzle member for discharging liquid by the pressure in the liquid storage chamber according to the pressing operation of the member, and a wall fixing lower case member detachably connected to the upper case unit member and having a check valve. The check valve is provided on the bottom surface of the wall-fixing lower case member so as to penetrate the back surface of the wall-fixing lower case member detachably attached to the wall. It is characterized in that the cavity of the check valve that introduces air into the check valve is open to the rear part.

Further, by opening and closing the lip portion of the check valve according to the pressing operation on the top cover member, external air is introduced into the liquid storage chamber through the cavity based on the negative pressure in the liquid storage chamber, The ejection nozzle member may continuously eject the liquid. A raised rib is integrally formed at the end portion of the wall-fixing lower case member remote from the cavity, and both ends of the rib extend to both ends of the wall-fixing lower case member along the end portions of the wall-fixing lower case member. Anything is fine.

When the upper case unit member and the wall fixing lower case member are fixed substantially parallel to the wall surface, the position of the check valve is above the liquid surface of the liquid in the liquid storage chamber and the discharge port of the discharge nozzle member. may be in The liquid storage chamber may form a closed space. The discharge nozzle member and the check valve may each be molded from a soft material and detachably fixed to the upper case unit member and the wall surface fixing lower case member. The top plate of the top cover member of the upper case unit member is formed such that the thickness of the portion extending from the center portion of the substantially dome-shaped portion to the side portion of the top plate portion of the top cover member is thinner than the thickness of the side portion. Shaped portions may also be used.

According to the liquid dispenser according to the present invention, the check valve is attached to the bottom surface of the wall fixing lower case member so as to penetrate the back surface of the wall fixing lower case member that is detachably attached to the wall. The cavity of the check valve that introduces external air into the check valve is open at the back side, so that the liquid in the liquid storage chamber can be continuously discharged without repeating the troublesome pushing operation, Moreover, even when the amount of liquid remaining in the container is small, the amount of liquid to be discharged can be reliably discharged without variations.

1 is a perspective view showing the appearance of an example of a liquid dispenser according to the present invention, viewed from the back thereof; FIG. 1 is a perspective view showing an appearance of an example of a liquid dispenser according to the present invention, viewed from a top cover member facing a rear portion; FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2; FIG. 3 is a cross-sectional view taken along line IV-IV in FIG. 2; FIG. 3 is an exploded perspective view showing an exploded configuration of an example of the liquid dispenser shown in FIG. 2; (A) is an enlarged perspective view showing the check valve shown in FIG. 5, and (B) is a perspective view showing the check valve viewed from the direction indicated by the arrow VIB shown in (A). be. (A) is an enlarged perspective view showing the discharge nozzle member shown in FIG. 5, and (B) is a perspective view showing the discharge nozzle member as seen from the direction indicated by the arrow VIIB shown in (A). be. 1 is a perspective view of an example of a liquid dispenser according to the present invention attached to a wall and showing a state in which the liquid dispenser is used; FIG.

FIG. 1 shows the appearance of one example of a liquid dispenser according to the present invention from the back of the wall-mounted liquid dispenser.

The liquid dispenser LD includes, for example, a wall fixing lower case member 10 attached to the surface of the wall portion WA (see FIG. 8) made of a magnet wall covering material, and a wall fixing lower case member 10 so as to cover the inner peripheral portion of the wall fixing lower case member 10. and an upper case unit member 12 to be connected.
As shown in FIG. 5, the upper case unit member 12 includes a discharge nozzle fixing/connecting member 12B having a detachable discharge nozzle member 18 at its lower end and connected to the wall surface fixing lower case member 10, and a frame-like member. A top cover member 12A having a joint end joined to one end of the discharge nozzle fixing/connecting member 12B so as to cover the inside of the discharge nozzle fixing/connecting member 12B.
The top cover member 12A is molded from a soft elastomer material such as silicone rubber. As shown in FIGS. 2 and 5, the top cover member 12A has a substantially rectangular top plate-like portion as a pressed portion, which will be described later, and four sides of the top plate-like portion that extend toward the discharge nozzle fixing/connecting member 12B. It consists of four side parts extending As shown in FIGS. 1 and 2, one of the four side portions corresponding to the long and short sides of the top plate-like portion corresponds to the discharge nozzle member 18 in a portion of the side portion corresponding to one of the short sides. The cut portion is cut so as to allow the discharge nozzle member 18 to escape. As shown in FIG. 3, the stepped portion at the joint end of the top cover member 12A is fixed/fixed to the discharge nozzle so as to form an upper case accommodating chamber 12C for accommodating liquid such as shampoo, conditioner, and body soap. It is engaged and joined to the stepped portion at one end of the connecting member 12B.

As shown in FIG. 3, the thickness T1 of the slightly rounded central portion of the top plate-like portion of the top cover member 12A that spreads from the slightly rounded central portion to the side portion (substantially dome-shaped portion) is smaller than the thickness T2 of the side portion. It is molded to be as thin as possible. Portions of the inner periphery of the side surface that are continuous with the inner periphery of the four sides of the top plate-shaped portion are rounded with a predetermined radius of curvature.

As a result, the surface of a portion of the top plate-like portion of the top cover member 12A extending from the central portion to the side portion is placed by a fingertip in the direction indicated by the arrow, as indicated by the two-dot chain line in FIG. By being pushed in by a certain amount, the portion of the top plate-like portion extending from the central portion to the side portion can be elastically displaced so as to easily bend toward the discharge nozzle fixing/connecting member 12B. On the other hand, when the fingertip of the pushed hand is pulled away from the surface of the top cover member 12A, the portion of the top plate-like portion of the top cover member 12A that spreads from the central portion to the side portion is, as indicated by the solid line in FIG. The restoring force of the elastomer material restores it to its original state. At this time, the thickness T1 of the slightly rounded central portion of the top plate-like portion of the top cover member 12A that spreads from the slightly rounded central portion to the side portion (substantially dome-shaped portion) is made thinner than the thickness T2 of the side portion. Since the top plate-like portion is molded, it can be easily bent even when the portion near the peripheral edge away from the central portion of the top plate-like portion is pushed with a fingertip.

The ejection nozzle fixing/connecting member 12B is made of, for example, a resin material and is shaped like a substantially rectangular frame. Each corner connecting the sides of the ejection nozzle fixing/connecting member 12B is rounded with a predetermined radius of curvature corresponding to the roundness of each corner connecting the end of the side surface of the top cover member 12A. have. The inner peripheral portion of the ejection nozzle fixing/connecting member 12B forms the upper case accommodating chamber 12C described above together with the inner peripheral portion of the top cover member 12A.

As shown in FIGS. 3 and 5, the central portion of the outer peripheral portion of the side surface portion corresponding to one short side of the four sides of the ejection nozzle fixing/connecting member 12B is the side surface of the wall surface fixing lower case member 10 described later. It has an elongated hole 12BH with which the protrusion 10UP formed on the inner periphery of the portion 10UW is engaged. In addition, the central portion of the side surface corresponding to the other short side of the four sides of the ejection nozzle fixing/connecting member 12B has an ejection nozzle holding portion 12BT in which the ejection nozzle member 18 is detachably arranged. The ejection nozzle holding portion 12BT protrudes toward the notch portion of the top cover member 12A. The ejection nozzle holding portion 12BT has a mounting hole 12BTa into which the ejection portion 18N of the ejection nozzle member 18 is inserted.

As shown in FIGS. 7A and 7B, the discharge nozzle member 18 is made of a soft elastomer material such as silicone rubber. The discharge nozzle member 18 is formed integrally with a flange portion 18F placed in a shallow concave portion of the discharge nozzle holding portion 12BT, and is molded integrally with the flange portion 18F. and a discharge portion 18N for discharging the liquid in the chamber 12C.

As shown in FIG. 3, the outer peripheral portion of the discharge portion 18N has a groove 18G that engages with an annular portion formed in the inner peripheral portion of the mounting hole 12BTa of the discharge nozzle holding portion 12BT. . A concave film 18NM forming an orifice is integrally formed inside the ejection portion 18N. The membrane 18NM is centrally formed with a self-closing orifice 18NS consisting of mutually perpendicular slits. As for the dimensions of the orifice 18NS, for example, the length and slit width are set to approximately 4 to 5 mm and approximately 0.1 mm, respectively.

A slit valve with an orifice 18NS is thereby formed in the membrane 18NM. A part of the surface of the top plate-like portion of the top cover member 12A that spreads from the center to the side portion is pushed by a predetermined amount with a fingertip in the direction indicated by the arrow, as indicated by the two-dot chain line in FIG. 3 through the orifice 18NS of the slit valve (gravitational force). After a predetermined amount of liquid has been discharged in the direction of action, the slit valve is automatically closed.

The outer shell of the wall surface fixing lower case member 10, which has an outer shell shape corresponding to the outer shell shape of the discharge nozzle fixing/connecting member 12B described above, is made of, for example, a resin material, as shown in FIGS. and a rear surface portion attached to the wall surface WS of the wall portion WA; a bottom surface portion 10BW forming a lower case housing chamber 10A formed facing the rear surface portion and storing liquid therein; a side surface portion 10RSW and a side surface portion 10LSW extending along a side, and side surface portions 10LW and 10UW connecting respective ends of the side surface portion 10RSW and the side surface portion 10LSW extending along a long side to the back surface portion; is composed of The side portions 10RSW and 10LSW, and the side portions 10LW and 10UW are perpendicular to the back portion and protrude from the back portion toward the discharge nozzle fixing/connecting member 12B.

As shown in FIG. 1, a shallow recess 10MG (see FIG. 4) is formed in the rear surface of the wall fixing lower case member 10, in which a thin magnet sheet (magnetized sheet) 14 is fixed in the wall portion WA. there is One end and the other end of the magnet sheet 14 are engaged with an elongated notch 14G1 around a position corresponding to a check valve 20, which will be described later, and a protrusion formed on the periphery of the above-described shallow recess. and a notch 14G2. The size of the notch 14G2 is smaller than that of the elongated notch 14G1. At a position close to one end of the magnet sheet 14 where the elongated notch 14G1 is formed, a raised rib 10R with predetermined gaps CL1 and CL2 is integrally formed at the uppermost end of the back surface. Both ends of the rib 10R extend along the short sides of the wall fixing lower case member 10 to both ends of the rear surface. As a result, the rib 10R prevents water droplets or the like from directly entering the check valve 20 of the back surface portion along the wall surface WS of the wall portion WA from above the top end of the back surface portion.

As shown in FIGS. 1 and 2, a detachable protrusion 12BP of the discharge nozzle fixing/connecting member 12B is provided at the center of the side surface portion 10LW that is engaged with the notch portion 12BG of the discharge nozzle fixing/connecting member 12B. An elongated hole 10b that engages with is formed. As shown in FIG. 3, the inner surface portion of the side surface portion 10UW is integrally formed with a projection portion 10UP that is detachably engaged with the elongated hole 12BH of the ejection nozzle fixing/connecting member 12B.

As shown in FIG. 4, grooves 10G in which rectangular rubber packings 16 made of silicon rubber (see FIG. 5) are detachably arranged are formed inside the side portions 10LSW and 10LSW, respectively. , 10RSW, partition walls 10LIW and 10RIM are formed. Further, as shown in FIG. 3, the above-described grooves 10G are respectively formed between the side portions 10LW and 10UW, connected to the partition walls 10LIW and 10RIM, inside the side portions 10LW and 10UW. Partition walls 10DIW and 10UIW are formed. As a result, the partition walls 10LIW and 10RIM as well as the partition walls 10DIW and 10UIW form the lower case housing chamber 10A in which the liquid is stored. A part of the partition wall 10UIW is notched for attaching and detaching the rubber packing 16 .

The cross section of the silicon rubber rubber packing 16 has, for example, a rectangular cross-sectional shape. When the upper case unit member 12 is attached to the wall fixing lower case member 10, as shown in FIGS. 3 and 4, the silicon rubber rubber packing 16 is pressed by the connection end surface of the discharge nozzle fixing/connecting member 12B. It will be done. As a result, a sealed internal space is formed by the upper case housing chamber 12C and the lower case housing chamber 10A. As a result, the situation in which the contained liquid is oxidized is suppressed.

As shown in FIGS. 1 and 3, a check valve 20 is provided on the bottom surface portion 10BW so as to pass through the back surface portion and the bottom surface portion 10BW of the wall fixing lower case member 10. As shown in FIGS. As shown in FIG. 8, the position of the check valve 20 is set above the liquid level LS of the liquid contained inside when the liquid dispenser LD is attached to the wall surface WS. This is to prevent the liquid from introducing air from the outside through between the pair of lip portions 20A1 and 20A2, as will be described later.

As shown in FIGS. 6A and 6B, the check valve 20 is made of, for example, a softer silicone rubber having a lower hardness than the silicone rubber of the top cover member 12A. integrally molded.

The check valve 20 includes a cylindrical fixed portion 20B attached to the stepped hole 10C of the bottom portion 10BW, and a pair of lip portions 20A1 and 20A2 formed integrally with the fixed portion 20B and whose tips are close to or separated from each other. , consists of The outer peripheral portion of the fixed portion 20B has a groove 20BG on the entire circumference that engages with the projection in the stepped hole 10C. The inner peripheral portion of the fixed portion 20B has a cavity 20TH that guides air from the outside between the pair of lip portions 20A1 and 20A2.

In such a configuration, as described above, the surface of a portion of the top plate-like portion of the top cover member 12A that spreads from the central portion to the side portion is formed as indicated by the arrow in FIG. By pushing the tip of the pair of lip portions 20A1 and 20A2 of the check valve 20 apart from each other (open state) by pushing the tip of the pair of lip portions 20A1 and 20A2 of the check valve 20 by a predetermined amount in the direction, the fingertip of the pushed-in hand becomes the top. When pulled away from the surface of the cover member 12A, the surface of the top cover member 12A is restored to its original state by the restoring force of the elastomer material, as indicated by the solid line in FIG. Due to the negative pressure in the housing chamber 10A, the outside air flows through the above-described predetermined gaps CL1 and CL2 on the wall surface WS to the cavity 20TH and between the tips of the pair of lip portions 20A1 and 20A2 to the upper case housing chamber 12C. After being introduced into the lower case housing chamber 10A, the liquid is discharged, and the tip ends of the pair of lip portions 20A1 and 20A2 are brought close to each other (closed state), thereby forming the upper case housing chamber 12C and the lower case housing chamber 12C. The interior space defined by 10A is sealed again.

When using the liquid dispenser LD, first, a predetermined amount of liquid, for example, about 450 ml, is injected into the lower case housing chamber 10A of the lower case member 10 for fixing to the wall surface. For example, the liquid level LS of 450 ml of injected liquid coincides with the upper ends of the partition walls 10LIW and 10RIM, as shown in FIG. After that, the connection end of the discharge nozzle fixing/connecting member 12B of the upper case unit member 12 is pressed against the rubber packing 16 so that the upper case unit member 12 covers the wall fixing lower case member 10, and then the projection The portion 12BP is engaged with the long hole 10b, and the protruding portion 10UP is engaged with the long hole 12BH. As a result, the upper case unit member 12 is fixed to the wall fixing lower case member 10 . Then, after the assembled liquid dispenser LD is attached to the wall surface WS of the wall portion WA, as shown in FIG. By pushing in the plate-like portion, the liquid SO is discharged from the discharge nozzle member 18 to the right-hand flat HAP. At this time, the top plate-like portion of the top cover member 12A of the upper case unit member 12 is continuously pushed by the thumb TH of the right hand HA without pulling the thumb TH of the right hand HA away from the top plate-like portion of the top cover member 12A. , the liquid is discharged, and external air is introduced into the upper case housing chamber 12C and the lower case housing chamber 10A through the check valve 20 due to the negative pressure in the upper case housing chamber 12C and the lower case housing chamber 10A, as described above. Therefore, the liquid SO is continuously discharged to the right-hand flat HAP.

Therefore, the liquid in the upper case storage chamber 12C and the lower case storage chamber 10A can be continuously discharged without repeating the troublesome pushing operation, and the liquid in the upper case storage chamber 12C and the lower case storage chamber 10A remains. Even if the amount is small, the ejection amount from the ejection nozzle member 18 does not fluctuate and can be reliably ejected. Moreover, since the rubber packing 16, the check valve 20, and the discharge nozzle member 18 are removable, the inside of the liquid dispenser LD can be easily cleaned.

In the above example, the back surface of the wall surface fixing lower case member 10 is fixed to the wall surface by the magnet sheet 14, but the back surface of the wall surface fixing lower case member 10 is not limited to such an example. However, it may be fixed to the wall surface by, for example, a plurality of suction cups made of vinyl chloride.

10 lower case member for fixing to wall surface 12 upper case unit member 12A top cover member 12A
12B Discharge nozzle fixing/connecting member 18 Discharge nozzle member 20 Check valve SO Liquid LD Liquid dispenser

Claims (7)

It has a top cover member molded of a soft material that can be pressed, and a liquid storage chamber that stores a liquid therein. an upper case unit member having a discharge nozzle member for discharging liquid;
a lower case member for fixing to a wall surface, which is detachably connected to the upper case unit member and has a check valve;
The check valve is provided on the bottom surface of the wall-fixing lower case member so as to pass through the back surface of the wall-fixing lower case member that is detachably attached to the wall, and allows outside air to pass through. A liquid dispenser, wherein a cavity of the check valve leading to the check valve opens to the back portion. The lip portion of the check valve opens and closes in response to the pressing operation of the top cover member, thereby introducing the external air into the liquid storage chamber through the cavity based on the negative pressure in the liquid storage chamber. 2. The liquid dispenser according to claim 1, wherein said discharge nozzle member continuously discharges said liquid. A raised rib is integrally formed at the end portion of the wall-fixing lower case member remote from the cavity in the rear surface portion, and both ends of the rib extend along the end portion of the wall-surface-fixing lower case member on the rear surface portion. 2. The liquid dispenser of claim 1, wherein the liquid dispenser extends to both ends. When the upper case unit member and the wall fixing lower case member are fixed substantially parallel to the wall surface, the position of the check valve is determined by the liquid surface of the liquid in the liquid storage chamber and the discharge port of the discharge nozzle member. 3. The liquid dispenser of claim 2, wherein the liquid dispenser is located above the 2. The liquid dispenser according to claim 1, wherein said liquid containing chamber forms a closed space. 2. The discharge nozzle member and the check valve are molded from a soft material, respectively, and are detachably fixed to the upper case unit member and the wall fixing lower case member. liquid dispenser. The top cover of the top cover member of the upper case unit member is configured such that the thickness of the portion extending from the central portion of the substantially dome-shaped portion to the side surface portion is thinner than the thickness of the side surface portion. 2. The liquid dispenser according to claim 1, wherein the top plate portion of the member is molded.

Images