JP2515953Y2 - Liquid ejection container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a liquid ejection container.

[Problems to be Solved by Conventional Techniques and Inventions] A liquid ejection container configured to eject liquid in a container body from a nozzle opening of the head by vertically moving a pressing head is known. A conventional container of this type includes, for example, a mounting cylinder fitted to the outer periphery of the neck of the container body, a cylinder with a suction valve having an upper end fixed to the cylinder and a lower end hanging in the container body, and sliding inside the cylinder. Generally, a piston-equipped operating member, a discharge valve provided in the operating member at an upper portion, and a nozzle-depressing head fitted to the upper end of the operating member are used. It is an object of the present invention to provide a liquid ejection container having the same function as much as possible.

"Means for Solving the Problem" The mounting cylinder 3 fitted to the outer periphery of the container neck 10 and the cylinder 3
The cylinder 4 having the upper end fixed to the container and the lower end hanging into the container body, and the annular piston 21 fitted slidably in the cylinder 4 up and down are projected from the lower end of the outer peripheral surface, and the upper end is mounted. A movable cylinder member 5 that is vertically movably penetrated through the top wall 21 of the cylinder 3 and protrudes upward, and is mounted in an upwardly biased state; and a push-down head 6 with a nozzle fixed to the upper end of the member 5, A downwardly tapered skirt portion 26 at the upper end is slidably fitted to the inner circumference of the movable tubular member 5, and outward flange-like projections 27 projecting from the outer circumference of the lower end are provided at a predetermined interval on the lower inner circumference of the cylinder 4. It is composed of a rod-shaped valve member 7 that is vertically movably inserted into a protruding inward flange-shaped projection 19 and a locking projection 18 above it, and is vertically movably mounted in the cylinder 4. Oriented flange 27 and cylinder The inlet valve is formed by the inward flange-like projection 19 of the discharge valve is formed by an inner peripheral wall of the skirt portion 26 and the movable cylindrical member 5, the movable cylinder member 5
The liquid in the cylinder 4 pressurized by pushing down the liquid is discharged from the nozzle port 28 of the pushing down head 6 through the discharge valve, and the liquid in the container body 2 is discharged when the movable tubular member 5 is raised. It was constructed so as to suck into the cylinder 4 via the suction valve.

[Operation] When the push-down head 6 is pushed down from the state shown in FIG. 1, the movable tubular member 5 is lowered. Accordingly, the valve member 7 descends until the lower surface of the outward flange-like projection 27 contacts the upper surface of the inward flange-like projection 19 of the cylinder 4 to close the suction valve. When the push-down head 6 is pushed down further, the annular piston
The inside of the cylinder 4 is pressurized by 21 and the discharge valve is opened so that the liquid in the cylinder 4 is ejected from the nozzle opening 28 of the head 6. Then, when the pressing of the push-down head 6 is released, the movable cylindrical member 5 is pushed upward by the elastic force of the contracted spring 22. Along with this, the valve member 7 rises, the suction valve opens, and the liquid in the container body 2 is sucked into the cylinder 4 from the suction pipe 20 via the suction valve. At this time, the movable tubular member 5 is
The upper surface of the piston 21 rises until it comes into contact with the lower surface of the guide cylinder 25, but the valve member 7 rises until the upper surface of the outward flange-like projection 27 comes into contact with the lower surface of the locking projection 18, and thereafter, the movable cylinder member 5 The inner peripheral wall slides on the skirt portion 26 and only the movable tubular member 5 rises.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which 1 denotes a liquid ejection container. The container 1 mainly includes a container body 2, a mounting cylinder 3, a cylinder 4, a movable cylinder member 5, a push-down head 6 and a valve member 7.

In the container body 2, a mouth / neck portion 10 is erected from a body portion 8 through a shoulder portion 9, and an inner circumference of a peripheral wall 11 is screwed onto the outer circumference of the mouth / neck portion 10 to detachably attach a mounting cylinder 3. . Further, a through hole 13 is formed at the center of a top wall 12 extending from the upper edge of the peripheral wall 11 of the mounting cylinder 3, and a cylindrical cylinder 4 is integrally hung from the outer peripheral edge of the through hole 13 into the container body 2. are doing. The lower portion of the cylinder 4 is reduced in two steps, and the first reduced diameter portion 15 below the first step portion 14
And a second reduced-diameter portion 17 below the second step portion 1, and a locking projection 18 is projected from the upper surface of the second step portion 16 and an inward flange-shaped projection is projected from the middle of the inner circumference of the second reduced-diameter portion 17. I have set up. The locking projections 18 are provided from the upper surface of the second step portion 16 so as to project from the front, rear, left, and right toward the center, and inside the second reduced diameter portion 17 and the first reduced diameter portion 15 above the inward flange-like protrusion 19. Is always in communication with. or,
The upper end of the suction pipe 20 is fitted on the inner circumference of the lower end of the second reduced diameter portion 17, and the lower end is suspended from the inner lower end of the container body 2.

The movable cylinder member 5 is the cylinder 4 above the first step portion 14.
An annular piston 21 that slides up and down in the inside is formed in a cylindrical shape with the upper and lower surfaces opened, protruding from the lower end of the outer peripheral surface.
16 A spring 22 interposed between the upper surface and the upper surface constantly urges it upward. Further, the upper end thereof is vertically movable upward through a guide tube 25 of a head locking member 24 fitted and fixed to a fitting tube 13 standing upright from the outer peripheral edge of the through hole 13 of the mounting tube 3. It is protruding. A push-down head 6 is fixed to the upper end of the movable cylinder member 5, and the movable cylinder member 5 of the head 6 is fixed.
The outer circumference of the fitting cylinder part fitted to the outer circumference of the upper end is configured to be screwed into the inner circumference of the guide cylinder 25.

The valve member 7 has a downwardly tapered skirt portion 26, which is fitted in the movable tubular member 5 so as to be slidable up and down, at its upper end,
It has a rod-like shape in which an outward flange-like projection 27 is projected from the outer periphery of the lower end, and the projection 27 is vertically moved between the locking projection 18 and the outward flange-like projection 19 provided on the inner circumference of the cylinder 4. It is inserted so that it can be moved up and down in the cylinder 4. Further, the skirt portion 26 and the inner peripheral wall of the movable tubular member 5 form a discharge valve, and the outward flange-like projection 27 of the valve member 7 and the inward flange-like projection 19 of the cylinder form a suction valve. . In the valve member 7, when the movable tubular member 5 descends, the skirt portion 26 moves.
Due to the frictional force with the inner peripheral surface, the outward flange-shaped protrusion 27
The lower surface is lowered until it comes into contact with the upper surface of the inward flange-shaped projection 19, and when the movable tubular member 5 is raised, similarly, the upper surface of the outward flange-shaped projection 27 is raised until it comes into contact with the lower surface of the locking projection 18. I am configuring. Therefore, when the push-down head 6 is pushed down, the inside of the cylinder 4 is pressurized by the annular piston 21 which descends accordingly, and the liquid is ejected from the discharge valve through the nozzle port 28 of the push-down head 6, and the push-down head 6 is pushed down. When the pressure rises, the discharge valve closes, the valve member 7 rises and the suction valve opens, and the liquid in the container body 2 is sucked into the cylinder 4 from the suction pipe 20 through the suction valve. ing. Incidentally, at least the skirt portion 26 of the valve member 7
The portion and the outward flange-shaped protrusion 27 are made of a soft material.

Further, a groove 29 for bleeding air is formed above the inner circumference of the movable tubular member 5 (this groove may be a ridge). The concave groove 29 is formed so that the outer peripheral edge of the skirt portion 26 reaches the upper surface position when the movable tubular member 5 is pushed down to the lowermost portion, and the head is arranged as shown in FIG. 3 for storage and transportation. It is provided in order to extract the pressurized air in the cylinder 4 when the push-down lock is performed.

 Note that all of the above members may be formed of a synthetic resin.

[Advantages of the Invention] As described above, the liquid ejection container of the present invention can be easily manufactured at low cost because the ejection pump can be formed with a small number of members due to the above-described configuration.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIGS. 1 and 3 are longitudinal sectional views of a main part, and FIG. 2 is an enlarged sectional view of the main part. 2 ... Container body, 3 ... Mounting cylinder 4 ... Cylinder, 5 ... Movable cylinder member 6 ... Depressing head, 7 ... Valve member

Claims (1)

(57) [Scope of utility model registration request] 1. A mounting cylinder 3 fitted to the outer circumference of a container body neck portion 10.
A cylinder 4 having an upper end fixed to the cylinder 3 and a lower end hanging down into the container body, and an annular piston 21 slidably fitted in the cylinder 4 up and down are projected from the lower end of the outer peripheral surface. At the same time, the movable cylinder member 5 is mounted with its upper end penetrating the top wall 12 of the mounting cylinder 3 in a vertically movable manner and protruding upward, and is mounted in an upwardly biased state, and a push-down with nozzle fixed to the upper end of the member 5. A downward taper skirt portion 26 at the upper end is slidably fitted to the head 6 and the inner circumference of the movable tubular member 5, and an outward flange-like projection 27 protruding from the outer circumference of the lower end is provided on the inner circumference of the lower portion of the cylinder 4. The rod-shaped valve member 7 is mounted so as to be movable up and down in the cylinder 4 by being inserted vertically movable into an inward flange-shaped protrusion 19 provided at a predetermined interval and a locking protrusion 18 above the flange. An outward flange-like protrusion 27 of the valve member 7 A suction valve is formed by the inward flange-like projection 19 of the linder 4, and a discharge valve is formed by the skirt portion 26 and the inner peripheral wall of the movable cylinder member 5, and the movable cylinder member 5 is pressed to pressurize. The liquid in the cylinder 4 is discharged through the discharge valve to the nozzle opening of the pressing head 6.
While being discharged from 28, when the movable tubular member 5 rises,
A liquid jet container characterized in that the liquid in the container body (2) is sucked into the cylinder (4) through a suction valve.