JPS62182056A - Discharger for liquid soap dispenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a dispenser for dispensing liquid soap, usually in small portions. This invention is particularly applicable to applications such as dispensing liquid soap containing coarse particles for polishing.

BACKGROUND OF THE INVENTION One type of soap dispenser is disclosed in commonly assigned US Pat. No. 4,018,363. The dispenser has a flexible pump bowl that receives soap from a container via a diaphragm check valve. Compressing the bowl closes the check valve and forces the soap in the bowl through the passageway and into the outlet. This structure is relatively complex and is not well suited for dispensing soap containing coarse particles (glyph 1~). This is because coarse particles tend to clog the passages of this device.

A similar type of dispenser using a compressible pump bowl or pump nipple is disclosed in U.S. Pat. No. 1,326,
No. 880 discloses a device in which soap is directly ejected from the sleeves 1 formed on the pump nipple. This dispenser uses a specially fabricated check valve in the soap container outlet, which requires the slit in the nipple to be distorted in order to dispense soap through the slit.

The nipple is therefore compressed in the direction of the slit. This has the disadvantage that before the pressure in the nipple has risen sufficiently to close the check valve, the sleeves 1~ open and drip out of them.

<Object of the Invention> Therefore, the general object of the present invention is to provide a dispensing device for a liquid dispenser that eliminates the above-mentioned drawbacks of the conventional device and is further improved in terms of structure and operation. It is.

An essential object of the invention is to provide a dispensing device for a liquid soap dispenser υ suitable for dispensing liquid soap containing coarse particles.

Another object of the invention is to provide a dispensing device of the type described above having a simple, economical and easy to assemble structure.

A further object of the invention is to provide a dispensing device of the type described above, in which the pressure in the dispensing nipple increases sufficiently upon operation of the dispensing device.

Briefly, it is an object of the invention to provide a liquid soap dispenser having a dispensing device of the type described above.

Structure of the Invention These and other objects of the invention are achieved by a dispensing HB according to the invention for a liquid soap dispenser with a liquid soap container having an outlet opening.

That is, the dispensing device according to the invention has an elongated, flexible, resilient nipple with a longitudinal axis, which is normally in an inflated state and whose interior defines a dispensing chamber for containing a predetermined amount of liquid soap. There is. The nipple is formed at one end with an inlet opening and at the other end with a normally closed discharge slit extending perpendicular to the axis. The dispensing device of the invention further includes means for attaching the nipple to the container so as to align the inlet opening of the nipple with the outlet opening of the container, and a non-return check disposed between the nipple inlet opening and the container outlet opening. The valve structure is right. The nipple is laterally compressible in a direction substantially perpendicular to the shaft and the discharge slit, and when the nipple enters the compressed state, pressure within the discharge chamber increases and the check valve structure closes and squirts liquid soap from the discharge slit, and when the nipple returns to its expanded state, the pressure in the discharge chamber decreases, the discharge slit closes, and the check valve structure opens to discharge a new amount of liquid soap. is made to flow into the discharge chamber.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 5 illustrate a liquid soap dispenser, generally indicated by the numeral 10, which includes a dispensing device 30 constructed in accordance with the present invention. Dispenser 10 has a housing 11 attached to a wall or other supporting surface by suitable means (not shown) within which a container 12 of liquid soap is disposed. The container 12 can be bottle-shaped and is replaceably placed within the housing 11 so that when the container is empty, it can be replaced by a container filled with soap. The container 12 has a cylindrical neck 1 at its lower end.
3, and around its neck is formed an annular 7 flange 14 extending circumferentially outward from the neck. The neck 13 has at its distal end a flat annular end surface 15 forming a cylindrical outlet opening 16 of the container 12 . The housing 11 has a generally cylindrical retaining frame 17 and is arranged to substantially surround the container neck 13 and the dispensing device 30 attached thereto. This holding frame 17 has an opening 18 on its side, and the reason for providing the opening will be described later.

Contained within the container 12 is a liquid soap 20, preferably of a type containing suspended particles 21 of the glyphs 1-1. The grid particles 21 are made of a material suitable for providing an abrasive action, as is well known.

As shown in FIGS. 2 to 4, the dispensing device 30 has an elongated, substantially circular, cylindrical nipple 31 made of a flexible, elastic material, such as rubber. The nipple 31 has a cylindrical side wall 32 with an annular flange 33 formed at one end thereof and extending circumferentially outwardly.

Further, an upright cylindrical wall 34 is integrally formed on the outer periphery of the flange 33. This upright cylindrical wall 34 provides an entrance opening to the nipple 31. An annular groove 35 is formed on the inner surface of the upright cylindrical wall 34 near the seven flange 33 . The upright cylindrical wall 34 also has two diametrically opposed and axially extending semi-cylindrical notches 35a which communicate with the annular groove 35.

The inside of the nipple 31 is a discharge chamber 36, and the distal end thereof has a set of walls 37 that are recessed and inclined radially inward. This pair of walls 37 cooperate to form a flat, narrow, platypus-beak-like tip 38 at its distal end, which closes off the discharge chamber 36. This tip 38 is formed with an elongated discharge slit 39 extending in its longitudinal direction, ie substantially in the diametrical direction of the nipple 31 . This slit is normally kept closed by the elastic bias of the nipple 31.

A check valve structure 40 is formed at the upper end of the nipple 31. The valve structure has a circular backing disk 41 disposed within an annular ring 35, the disk having a circular opening 42 formed therethrough in its center. Also located within the annular groove 35 is a circular membrane 45 which rests on the flange 33 below the backing disc 41. The membrane 45 is comprised of a suitably flexible resilient material impermeable to liquid soap and has a linear valve slit aligned with the opening 42 in the backing disk 41 and extending substantially diametrically through the membrane. It has 46. A notch 35a formed in the upright cylindrical wall 34 of the nipple facilitates bending of this wall to facilitate insertion of the backing disk 41 and membrane 45 into the annular groove 35.

In use, the dispensing device 30 is assembled as described above,
Attach (pull) the container 12. To briefly describe it in detail, place the upright cylindrical wall 34 over the tip of the container neck 13 so as to surround it, push it in until the wall 34 comes into contact with 1/4 of the flange, and then The end surface 15 of the neck 13 is engaged with the top surface of the backing disk 41 as shown in FIG. A check valve structure 40 is provided for control. The dispensing device 30 is then properly retained in the container neck 13 using a generally cylindrical retaining clip 47.

The clip 47 has an annular upper flange 48 and a lower flange 49 extending parallel to each other and spaced apart from each other.
The cylindrical wall 34 of the nipple 31 is tightly clamped against the flange 14 of the neck 13 by engaging the outer surface of the flange 14 and the outer surface of the flange 33, respectively. To facilitate installation of the dispensing device 30, the retaining frame 17 is preferably removable from the housing 11.

Also preferably provided is an actuator 50 supported by the housing 11 by suitable means (not shown). This actuator 50 is connected to the opening 18 of the holding frame 17.
protruding through, as shown in FIGS. 1 and 5,
Engages the outer surface of nipple 31.

The operation of the dispenser 10 and the discharge device 30 will be explained with reference to FIGS. 6 to 9. Preferably, when the container neck 13 is turned upwardly, the dispensing device 30
is attached onto the container 12 and assembled. After assembly, the container 12 is inverted and fitted into the housing 11 as shown in FIG. 1, and the nipple 31 is passed through the holding frame 17 and projects downward from the bottom thereof. The actuator 50 is engaged with the nipple 31 by orienting the nipple such that the discharge slit 39 of the nipple is substantially parallel to the opening 18 of the retaining frame 17 .

At this time, the actuator 50 is arranged not to face one end of the slit 39 but to face the side of the slit 39.

The container 12 may be provided with ventilation holes. The weight of the liquid soap 20 on the atmospheric pressure plus membrane 45 thereby causes the valve slit 45 to open, allowing liquid soap to flow through the opening 42 in the backing disk 41 and the valve slit 46 into the discharge chamber 36 in the nipple 31. I can do it. This inflow continues until the discharge chamber 36 is filled. Discharge chamber is full Wf4'
J, the pressure on both sides of the membrane 45 becomes equal, and therefore an equilibrium state is established and the slit 46 can be closed (fifth
figure). In this normal equilibrium state, the natural elastic bias of the nipple 31 is such as to keep the dispensing slit 39 closed against the weight of the liquid soap 20 contained within the dispensing chamber 36.

When it is desired to dispense a dose of liquid soap, the user operates actuator 50 to compress the side of nipple 31 in the direction of the arrows in FIGS. 6.8 and 9. nipple 3
This compression of the cylindrical side wall 32 of 1 increases the pressure in the dispensing chamber 36 so that a dose 55 of liquid soap is dispensed from the dispensing slit 39 while the sleeve 1-46 of the check valve structure 40 remains open. Make it squirt (Figures 6 and 9).

When the actuator 50 is released, it returns to its normal rest position under the bias of suitable biasing means (not shown) and the compressed wall of the nipple 31 returns to its normal expanded state as a result of the natural elasticity of the nipple. Return to (Figure 7). nipple 31
This re-expansion causes the pressure in the discharge chamber 36 to drop below the pressure in the container 12, thereby causing the discharge slit 39 to close again and opening the sleeves 1-46 in the check valve structure to release a new dose. liquid soap is injected from the container neck 13 (FIG. 7). Once the discharge chamber 36 is filled, the discharge device 30 returns to its equilibrium state (FIGS. 5 and 8).

<Effects of the Invention> Since the actuator 50 engages with the nipple 31 in a direction perpendicular to the longitudinal axis of the nipple 31 and perpendicular to the direction of the slit 39, this occurs when the nipple 31 is compressed from one end of the slit 39. Such a phenomenon, in which the discharge slit 39 is immediately distorted into the open state by the initial compression of the nipple 31, does not occur. Therefore, the discharge chamber 36
Liquid soap cannot be expelled from the dispensing slit 39 until the pressure therein is high enough to cause the liquid soap to be ejected through the dispensing slit 39. Even if the pressure within the discharge chamber 36 increases to this extent, the slit 46 of the valve structure remains open.

Since the liquid soap 20 is directly discharged from the nipple 31,
There are no narrow passages that could be clogged with glyphs 1-21. In general, the pumping action of the nipple 31 during a dispensing operation moves the accumulated grid particles 21 away from the dispensing chamber 36 during each dispensing operation.

In this invention, since the nipple 31 is made of a single integral MA structure, it can also be made by molding. Container 12 may be made of a suitable plastic, and housing 11, retaining frame 17 and actuator 50 may be made of plastic or metal. Dispensing device 30 is also easy to assemble and can be attached to container 12 without tools.

From the above description, it can be seen that the liquid soap dispenser according to the present invention and the dispensing device used therefor are simple and inexpensive (t11
It is particularly suitable for dispensing liquid soap containing grid particles without clogging, and soap does not leak from this device until the check valve of the dispensing bag δ is closed. You will understand that.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of a liquid soap dispenser equipped with a dispensing device according to the invention; FIG. 2 is a perspective view of the dispensing device of FIG. 1; FIG. 3 is an exploded view of the dispensing device of FIG. 2 rotated by 180°. A perspective view; FIG. 4 is an enlarged sectional view taken along line 4-4 in FIG. 2; FIG. 5 is a perpendicular cut along line 5-5 in FIG.
Enlarged partial sectional view showing the normal rest state of the discharge device; No. 6
The figure is a diagram similar to Figure 5 showing the compressed discharge state of the discharge device; Figure 7 is a diagram similar to Figure 5 showing the refilling state of the discharge device; Figure 8 is the discharge device of Figure 5. and FIG. 9 is an enlarged bottom view of the discharge device of FIG. 6 in a compressed state. 10... Dispenser, 12... Liquid soap container, 1
4...Flange, 16...Container outlet opening, 20.
...Liquid soap, 30...Discharge device, 31...Nipple, 33...Flange, 36...Discharge chamber, 37...
- Inclined wall, 38... Nipple tip, 3... Discharge slit, 40... Check valve structure, 41... Backing disk, 42... Disk opening, 45... Membrane, 46
...Valve slit. Patent Applicant Steiner Company. incoholated

Claims (1)

Claims: 1. A dispensing device for a liquid soap dispenser with a liquid soap container having an outlet opening, the flexible device having an elongated shape with a longitudinal axis and an inlet opening at one end thereof. a resilient nipple, a device for attaching the nipple to a container to position an inlet opening of the nipple in alignment with an outlet opening of the container, and a device disposed between the nipple inlet opening and the container outlet opening; The nipple is normally in an inflated state and has a discharge chamber therein for containing a predetermined amount of liquid soap, and has a second end separate from the one end having the inlet opening. an end having a normally closed discharge slit extending perpendicular to said axis, said nipple being laterally compressible in a direction substantially perpendicular to said axis and said discharge slit; When the nipple shifts to the compressed state, the pressure in the discharge chamber increases, the check valve structure closes, and liquid soap is ejected from the discharge slit, and when the nipple returns to the expanded state, the pressure inside the discharge chamber increases. A dispensing device for a liquid soap dispenser, characterized in that when the pressure decreases and the dispensing slit closes, the check valve structure opens to allow a new amount of liquid soap to flow into the dispensing chamber. 2. The dispensing device according to claim 1, wherein the nipple has a substantially circular cylindrical shape. 3. The discharge device according to claim 2, wherein the discharge slit extends in the diameter direction of the nipple. 4. The tip of the nipple has a platypus beak shape and has an inclined wall portion forming a flat and thin tip, and the discharge slit is formed in the tip. Discharge device as described in section. 5. The discharge device of claim 1, wherein the check valve structure has a membrane extending across the inlet opening, the membrane having a valve slit formed in its center. . 6. The check valve structure includes a backing disk disposed overlying the membrane, the disk having an opening in its center aligned with and forming the valve slit. The discharge device according to item 5. 7. The discharge outlet according to claim 1, wherein the nipple has an attachment portion extending from near one end of the nipple to surround the soap container and engage the container outlet opening. Device.