JP2578046Y2 - dispenser - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention is intended to be attached to the mouth of a bottle containing a liquid material such as a shampoo or a rinse or a liquid material having a fluidity such as a viscous material, and to discharge the liquid material to the outside. About dispensers.

[0002]

2. Description of the Related Art Conventionally, there has been known a dispenser which is attached to a mouth of a bottle containing a liquid material having fluidity such as shampoo and rinse so as to discharge the stored material to the outside.

In such a dispenser, a piston reciprocating in a cylinder is attached to a lower end of a hollow stem having a discharge nozzle at an upper end, and the piston is reciprocated in a vertical direction against the elastic force of a spring. , With the opening and closing of the check valve that cooperates with the piston, sucks liquid material into the cylinder,
Further, the liquid is discharged from the discharge nozzle through the inside of the stem.

[0004] In such a known dispenser, the maximum stroke of the stem is set to a fixed length and cannot be changed. For this reason, when changing the discharge amount, it is possible to stop the stroke of the stem halfway, but this makes it difficult to stop the stroke and to adjust the force, and there is an inconvenience that a constant discharge amount cannot be obtained.

[0005]

The problem to be solved by the invention is that the stroke length of the stem can be changed and can be reliably stopped at a predetermined fixed position, and the discharge amount can be changed. Is what you do.

[0006]

Means for Solving the Problems To solve the above problems, a means adopted by the present invention is to reciprocate a cylinder communicating with a container through a check valve along a poppet in the cylinder. It also serves as a piston, a spring for constantly biasing the piston in the direction of the starting point of the reaction, a hollow stem integrally connected to the piston, and a handle having an ejection passage communicated with the stem via a check valve. It consists of a discharge nozzle, the upper end of which abuts against the lower surface of the discharge nozzle, and a stopper tube capable of restricting the lowering of the discharge nozzle is attached to the outer periphery of the stem so as to be vertically movable, and the stem and the stopper tube are connected in the axial direction.
Freedom of relative movement, unification of rotation direction,
The stopper tube moves up and down relative to the stem due to the rotation of the system.
It is characterized in that it is made to be .

[0007]

[Operation] A stopper tube is attached to the outer periphery of a stem that reciprocates integrally with the ejection nozzle so as to be vertically movable, and the stem can be stroked within the interval between the stopper tube and the ejection nozzle. By moving the tube up and down, it is possible to arbitrarily increase or decrease the interval between the pipe and the discharge nozzle, change the stroke length of the stem, and change the discharge amount.

[0008]

According to the invention, the stroke length of the stem can be changed and adjusted to an arbitrary size by the stopper tube, and a certain amount of liquid material corresponding to the adjusted stroke can be reliably discharged. Becomes possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. In the figure, (1) is a bottle-shaped container, and a dispenser (3) is provided at its mouth (2).
Is attached.

The dispenser (3) includes a cylinder (6) fixed to a mouth (2) of a container by a cap (4) via a packing (5), and a lower opening (7) of the cylinder (6). Is connected to a pipe (8) extending toward the bottom of the container (1).
A piston (9) is reciprocally housed in the cylinder (6). A hollow stem (10) extending from the mouth (2) to the outside of the bottle is integrally connected to the piston (9).
A discharge nozzle (11) also serving as a handle is fixed to the upper end of (0). In the pouring nozzle (11), a pouring passage (12) communicating with the hollow stem (10) is formed, and for example, a ball is connected to a connecting portion between the stem (10) and the pouring passage (12). A check valve (13) composed of a valve is provided to prevent the liquid material from flowing back from the discharge passage (12).

Reference numeral (14) denotes a poppet disposed in the cylinder (6). The piston (9) is reciprocally guided by the poppet (14), and the poppet (14) is connected to the bottom of the poppet (14). A spring (15) for urging the piston (9) upward is stretched between the piston (9). At the upper end of the poppet (14), a large-diameter flange-shaped stopper (16) for limiting the rise of the piston (9) is formed, and at the lower portion, an opening (17) is formed. Cylinder
In the lower opening (7) of (6), a check valve (18) composed of, for example, a ball valve for preventing the liquid material in the cylinder (6) from flowing back to the pipe (8) is provided.

[0012] The structure of the dispenser (3) as described above is well known in the art. When the dispensing nozzle (11) is depressed, the piston (9) descends integrally with the stem (10) and moves to the forward stroke. Then, the liquid material existing in the cylinder (6) is compressed. The compressed liquid material spreads out the upper part of the piston (9) outward to form a gap with the poppet (14), from which it flows into the stem (10), and further flows into the check valve (13). Is discharged from the outflow passage (12) while the valve is opened.

When the pressing force on the discharge nozzle (11) is released,
The piston (9) rises under the repulsive force of the spring (15) to enter a reciprocating stroke, and a negative pressure is generated in the cylinder (6). This negative pressure causes the check valve (18) to open,
The liquid material in (1) is sucked into the cylinder (6) via the pipe (8) and stored for the next pouring by the forward stroke.

In the present invention, in such a dispenser, a stopper tube (20) is vertically moved between a stem (10) and a mounting ring (19) for mounting a stem (10) together with a piston (9) on an upper portion of a cylinder (6). Movably arranged, the stopper tube
The distance between the nozzle (20) and the discharge nozzle (11) is defined as the stroke length of the stem. The stopper tube (20) is screwed into the inner peripheral surface of the mounting ring (19), and moves up and down relative to the mounting ring (19) by rotation, and is discharged to the upper end of the stopper tube (20). The distance (l) at which the lower surface of the nozzle (11) abuts can be increased or decreased. The lower surface of the dispensing nozzle (11) abuts against the upper end of the stopper tube (20), whereby further lowering is prevented, and the stem (10) that operates integrally with the dispensing nozzle (11) for a distance (l). ) Reciprocating stroke length.

In the illustrated embodiment, the stopper tube (20)
And stem (10) are axially extending key (21) and keyway (22)
By this, the relative movement in the axial direction is free, and they are integrally connected in the rotation direction, and are connected by the key (23) and the key groove (24) in the same manner as the ejection nozzle (11) and the stem (10). You. Thus, when the discharge nozzle (11) is rotated, the stem (10) rotates integrally, and the stopper tube (20) is rotated with the rotation of the stem (10).
Moves up and down relative to the mounting ring (19). Stopper tube
With the (20) at the highest position and the distance (l) to the injection nozzle (11) set to zero, the operation of the injection nozzle (11) becomes impossible, and a locked state suitable for transportation and storage is obtained. Can be done.

In the illustrated embodiment, the stopper tube (20) is moved up and down by rotating the spout nozzle (11). However, the invention is not limited to this. It goes without saying that a structure in which only the stopper tube (20) is independently moved up and down may be adopted.

[Brief description of the drawings]

 1 is a longitudinal sectional view of a dispenser. FIG. 2 is a longitudinal sectional view showing operation. FIG. 3 is an exploded perspective view of a main part. FIG. 1 is a sectional view taken along a line IV-IV.

[Explanation of symbols]

 (1) Container (2) Mouth (3) Dispenser (4) Cap (5) Packing (6) Cylinder (7) Lower opening (8) Pipe (9) Piston (10) Stem (11) Discharge nozzle ( 12) Outlet passage (13) Check valve (14) Poppet (15) Spring (16) Flange stopper (17) Opening (18) Check valve (19) Mounting ring (20) Stopper pipe (21) Key (22) Keyway (23) Key (24) Keyway

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylinder which communicates with a container via a check valve, a piston which reciprocates in the cylinder along a poppet, a spring which constantly urges the piston in a direction of a reaction start point, and an integral part of the piston. And a discharging nozzle serving also as a handle having a discharging passage communicated with the stem via a check valve, and an upper end of the discharging nozzle is in contact with a lower surface of the discharging nozzle, and the discharging is performed. A stopper tube that can limit the descent of the nozzle is vertically movably attached to the outer periphery of the stem, and the stem and the stopper tube are moved relative to each other in the axial direction.
Freedom, unify the direction of rotation,
The stopper tube up and down relative to the stem.
Dispenser, characterized in that it was.