JP2541945Y2 - Liquid dispense container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid dispensing container.

[0002]

[Prior art]

[Problem to be solved by the invention] As a liquid discharge container,
A mounting cap fitted to the outer periphery of the mouth and neck of the container body, a cylinder with a suction valve suspended by the cap into the container body; An actuating member having a press-down head fixed to the upper end of the discharge pipe formed with a communicating hole is fitted to the inner surface of the cylinder so that the outer peripheral edge can be slid up and down. An annular piston movably mounted between a piston press-down projection provided above the hole and an outward flange-shaped locking projection provided below the through-hole, and a discharge valve body of the annular piston; A discharge valve is formed by the lower end and the upper surface of the locking projection, and the suction valve is closed by depressing the operating member, and the discharge valve is opened so that the liquid in the cylinder passes from the discharge valve through the through hole. Those constructed as Notes issued from Note Deana of lowering the head is known to (e.g., container set forth in real-Open No. 2-48159).

In this type of container, when the operating member is pushed down, the annular piston may be simultaneously lowered by the frictional force with the discharge pipe, so that the discharge valve may not be opened at first. This phenomenon can be easily eliminated by pushing up the piston by the fluid pressure in the cylinder if the state where the press-down head is kept down is easy.However, the vertical movement of the press-down head is performed without stopping the container. The usage is widespread, and the user may mistake the pump for a failure, which is not preferable. In particular, when the container is used for the first time after opening the container, air exists in the cylinder, and air is easier to compress than liquid, so the head is compared to the state in which the liquid is filled in the cylinder in use. Longer push downs are required, resulting in more misunderstandings of failure.

The present invention proposes an excellent liquid dispensing container which solves the above-mentioned disadvantages of the prior art.

[0005]

In order to solve the above-mentioned problems, the liquid dispensing container according to the present invention has a mounting cap 3 fitted around the outer periphery of the neck portion 11 of the container body, and the cap 3 hangs down into the container body. A cylinder 4 with a suction valve 20 and a downwardly moving head 7 which is vertically urged in the cylinder 4 and has a through-hole 25 communicating with the inside of the cylinder 4 at the bottom. The outer peripheral edge is slidably fitted up and down on the inner surface of the cylinder 4 and the through hole 25 on the outer periphery of the discharge pipe 6.
The protrusion for pushing down the piston, which is provided above and the through hole 25
An annular piston 9 which is vertically movably mounted between outwardly extending flange-shaped locking projections 21 provided downward, and the annular piston 9 is disposed above an outer base of the annular base 9a so as to extend upward. An outer upper sliding portion 9b having an upper end portion slidably abutting on the inner peripheral surface of the cylinder, and a skirt shape extending downward from the outer lower surface of the annular base and having a lower end portion. An outer lower sliding portion 9c slidably in contact with the inner peripheral surface of the cylinder 4 and a ring plate standing upright from the inner upper surface of the annular base 9a. An inner upper sliding portion 9d that slides while closing the gap, a ring-shaped plate extending downward from the inner lower surface of the annular base 9a, and a lower end at the ascending position of the operating member 8 is formed on the upper surface of the locking projection 21. Section consisting of a ring-shaped discharge valve body 9e in liquid-tight contact with the None of Jo, discharge valve in the discharge valve body portion 9e bottom and the locking projection 21 the upper surface of the annular piston 9
The suction valve 20 is closed by pressing down the operating member 8, and the liquid in the cylinder 4 is pushed down from the discharge valve 31 through the through hole 25 and discharged from the discharge hole 28 of the head 7. A locking portion 32 comprising a step capable of climbing over the inner surface of the cylinder 4 below the contact position of the external upper sliding portion 9b at the raised position of the operating member 8
Was provided.

[0006]

[Operation] External upper sliding portion 9b at the ascending position of the operating member 8
Since the locking portion 32 is provided on the inner surface of the cylinder 4 below the contact position, when the operating member 8 is pushed down, even if the annular piston 9 is pushed down together, as shown in FIG. The piston 9 is temporarily locked by 32, and then locked until the hanging cylinder 26 for pushing down the piston presses the upper surface of the piston 9, so that the discharge valve 32 is quickly and reliably opened.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a liquid discharging container. The container 1 includes a container body 2, a mounting cap 3, a cylinder 4, an intake valve member 5, an operating member 8 including a discharge pipe 6 and a pressing head 7, and an annular piston 9 as main members. ing.

[0009] The container body 2 is constructed by erecting the mouth and neck 11 from the trunk 10.

The mounting cap 3 has a top wall 13 extending from an upper edge of a peripheral wall 12 fitted to the outer periphery of the mouth and neck portion 11 of the container body, and a through hole through which the discharge pipe 6 penetrates at the center of the top wall 13. It is composed. Further, a guide tube 14 for guiding the discharge pipe 6 above the peripheral edge of the window hole is provided upright.

The cylinder 4 has a cylindrical shape with upper and lower end faces formed by reducing the lower end in two steps to form an upper first reduced diameter portion 4a and a lower second reduced diameter portion 4b. A pair of fitting cylinder portions vertically hanging from the lower surface of the top wall 13 of the mounting cap 8 in a double cylindrical shape.
The lower end is hung down in the container body 10 by being fitted and fixed between 15 and 16. The large-diameter portion above the first reduced-diameter portion 4a is configured as a sliding cylinder portion 4c on which the annular piston 9 slides. Further, a tapered suction valve seat 17 is provided between the first and second reduced-diameter portions 4a and 4b so as to protrude in an inward flange shape, and has a tapered shape whose diameter decreases as going downward. It is configured as a suction valve hole 17a.

The suction valve member 5 has a length that can be substantially accommodated in the first reduced diameter portion 4 a of the cylinder 4, and has a hollow cylindrical shape having a lower end surface in liquid-tight contact with the upper surface of the suction valve seat 17. A rod-shaped guide portion 5b having a diameter reduced from the upper end edge of the base 5a is formed in a columnar shape integrally formed above the sliding cylinder portion 4c of the cylinder. It is protruding. The cylinder 4 is erected from the front and rear and left and right of the step between the first and second reduced diameter portions, and is guided vertically by guiding each plate-like projection 18 between a pair of plate-like guide ribs 19. It is supported as much as possible. A suction valve is formed between the lower end surface of the suction valve body 5 and the upper surface of the suction valve seat 17.
Forming 20.

The discharge pipe 6 has a cylindrical shape with its lower end hanging down inside the sliding cylinder portion 4c of the cylinder and its upper end projecting above the stable cylinder portion 14, and protruding outward from the lower end outer surface in the form of a flange. Lower surface of the locking projection 21 and each guide rib 19 of the cylinder 4
A coil spring 22 interposed between the upper surfaces constantly urges the device upward, and is mounted so as to be vertically movable.

On the upper surface of the locking projection 21, a concave groove 23 having a tapered inclined surface 23a whose outer peripheral surface expands as it goes upward is formed around the concave groove 23, which will be described later. The discharge valve body of the annular piston 9 is configured to be insertable.

Further, an inward flange-shaped sliding projection 24 is projected from the lower inner surface, and the inner peripheral edge thereof is brought into liquid-tight and slidable contact with the outer periphery of the guide portion 5b of the suction valve member. With the lowering of the suction valve member 8, the discharge valve member 5 is pushed down until its lower end surface contacts the upper surface of the suction valve seat 17, and the suction valve member 5 is raised to a predetermined position as the operating member 8 rises.

Further, a through hole 25 communicating with the inside of the cylinder 4 is formed at the lower end of the peripheral wall, and a protrusion for pushing down the piston is formed in a double cylindrical shape from the outer peripheral surface of the peripheral wall above the through hole 25 through an outward flange. And a lower end thereof is hung at a predetermined distance from the locking projection 21.

The press-down head 7 has a fitting tube portion 27 fitted to the upper end of the discharge pipe 6 and is mounted thereon. Is formed inside.

The annular piston 9 has a skirt-shaped external upper sliding portion 9b extending upward from the outer upper surface of the annular base 9a located between the hanging cylindrical portion 26 and the locking projection 21 of the discharge pipe 6.
An outer lower sliding portion 9c in the form of a skirt that extends downward from the outer lower surface of the annular base 9a, and an inner upper sliding portion 9d whose upper end extends outward from the inner upper surface of the annular base 9a. or,
The vertical cross-section of each of the ring-shaped discharge valve portions 9e extending downward from the inner lower surface of the annular base has a substantially H-shape, and the upper end of the outer upper sliding portion 9b and the lower end of the outer lower sliding portion 9c are formed. Each of the cylinders 4 is slidably in contact with the inner peripheral surface of the sliding cylinder portion 4c of the cylinder 4, and the upper end of the upper inner sliding portion 9d is slidably and liquid-tightly slidable on the inner peripheral surface of the hanging cylinder portion 26 of the discharge pipe 6. It is attached and attached.

A ridge 30 is provided inwardly from the inner surface of the lower end of the discharge valve body 9e, and the lower end of the discharge valve body 9e including the ridge 30 is formed at the raised position of the operating member 8 by the concave groove 23. The inside of the cylinder 4 and the inside of the discharge pipe 6 are closed in a liquid-tight manner. The concave groove 23 and the lower end of the discharge valve body 9e form a discharge valve 31.

When the discharge valve body 9e is fitted into the groove 23, the lower peripheral edge of the lower end abuts against the inclined surface 23a of the outer periphery of the groove 23, and the lower end of the discharge valve body 9e is pressed inward. Since the inner surface of the ridge 30 is pressed against the inner surface of the concave groove 23 along with this, it is possible to seal at this portion and the contact portion on the inclined surface 23a so as to obtain good sealing performance. Make up.

In the present invention, in the operating member raised position,
As shown in FIG. 2, the annular piston 9 is locked at the lower end of the fitting tube portion 15 of the mounting cap 3. In this state, the annular piston 9 moves upward on the inner peripheral surface of the cylinder 4 located below the outer upper sliding portion 9b. A widening tapered locking portion 32 is provided. When the operating member 8 in the raised state is pushed down, the annular piston 9 normally exerts a frictional force between the outer upper and lower sliding portions 9b and 9c and the inner peripheral surface of the cylinder, and the hanging cylindrical portion 26 of the discharge pipe 6
The lower end abuts on the upper surface of the piston 9 and stops at that position until it is pushed down. However, even if the piston 9 is lowered simultaneously with the actuating member 8 due to the frictional force between the inner upper sliding portion 9d and the inner surface of the hanging cylinder portion 26 being overcome. 3, the upper end of the outer upper sliding portion 9b is locked by the locking portion 32, so that the discharge valve 31 is definitely opened.

The locking portion 32 is not limited to a tapered shape which spreads upward as described above, but may be a rib-shaped projection. What is necessary is just to be the locking part which has the level | step difference comprised so that locking was possible.

In the container 1 constructed as described above, the suction member 24 is lowered by the sliding projection 24 of the discharge pipe 6 by pressing the press-down head 7 to lower the operating member 8, and the suction valve 20 is closed. Since the annular piston 9 stays at the current position until the lower end of the hanging cylinder 26 of the discharge pipe presses the upper surface of the piston, the discharge valve 31 is opened and the inside of the cylinder 4 is pressurized, and the liquid in the cylinder 4 is discharged from the discharge valve 31 through the through hole 25. Through the outlet pipe of the head 7 from the discharge pipe 6 through the flow passage 29.
It is poured out from 28. When the pressing of the operating member 8 is released, the operating member 8 is pushed upward by the resilient force of the spring 22, whereby the suction valve member 5 is pulled upward, the suction valve 20 is opened, and the discharge valve is opened. When the cylinder 31 is closed and the pressure in the cylinder 4 becomes negative, the liquid in the container 2 is sucked into the cylinder 4.

It is preferable that all of the above members are made of synthetic resin.

[0025]

As described above, the liquid discharging container of the present invention has the above-described structure, so that the discharge valve is reliably opened when the operating member is pushed down, so that the failure of the pump as in the case of the conventional container of this type can be prevented. It is an excellent thing without a risk of being mistaken.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a main part of an embodiment of a liquid dispensing container of the present invention.

FIG. 2 is an explanatory diagram illustrating a cylinder portion of the embodiment.

FIG. 3 is an explanatory diagram illustrating a cylinder portion of the embodiment.

[Description of Signs] 3 Mounting cap 4 Cylinder 6 Discharge pipe 7 Push-down head 8 Operating member 9 Annular piston 9a Annular base 9b External upper sliding part 9c External lower sliding part 9d Internal upper sliding part 9e Discharge valve body part 11 ports Neck 20 Suction valve 21 Locking projection 25 Through hole 26 Hanging cylinder 28 Injection hole 31 Discharge valve 32 Locking part

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting cap 3 fitted to the outer periphery of the mouth and neck 11 of a container body, a cylinder 4 with a suction valve 20 suspended by the cap 3 into the container body, and a vertically upwardly biased state in the cylinder 4. An actuating member 8 which is movably supported and has a through-hole 25 communicating with the inside of the cylinder 4 at the lower part, and an operating member 8 having a press-down head 7 fixed to the upper end of the discharge pipe 6 and an outer peripheral edge on the inner surface of the cylinder 4 Slidably fitted to the outer circumference of the discharge pipe 6 between the piston push-down projection provided above the through hole 25 and the outward flange-shaped locking projection 21 provided below the through hole 25. An annular piston 9 mounted so as to be able to move up and down.
The outer base 9a is formed in a skirt shape extending upward from the outer upper surface of the annular base 9a and having an upper end portion slidably in contact with the inner peripheral surface of the cylinder. An outer lower sliding portion 9c having a lower end portion slidably abutting on the inner peripheral surface of the cylinder 4 and a ring plate erecting from an inner upper surface of the annular base portion 9a. The upper sliding portion 9d, which slides while closing between the through hole 25 and the upper portion of the piston 9 at the upper end.
A ring-plate-shaped discharge valve body portion having a ring-shaped plate extending downward from the inner lower surface of the annular base 9a and having a lower end in liquid-tight contact with the upper surface of the locking projection 21 at the ascending position of the operating member 8; 9e
A discharge valve 31 is formed by the lower end of the discharge valve body 9e of the annular piston 9 and the upper surface of the locking projection 21. The suction valve 20 is closed by pressing down the operating member 8, and the cylinder is closed. In the liquid discharging container configured so that the liquid in the liquid 4 is pushed down from the discharge valve 31 through the through hole 25 and out of the discharging hole 28 of the head 7, the external upper sliding portion at the ascending position of the operating member 8 9b. A liquid dispensing container characterized by comprising a locking portion 32 comprising a step which can climb over the inner surface of the cylinder 4 below the contact position.