JPH0561058U - dispenser - Google Patents

Abstract

(57) [Summary] [Purpose] This invention intends to increase or decrease the discharge amount by changing the stroke length of the stem. [Constitution] Having an abutting portion that abuts the lower surface of the pouring nozzle,
A stopper body that can limit the lowering of the pouring nozzle is attached to the outer periphery of the cap so as to be vertically movable, and the stroke length of the stem is increased or decreased by changing the bottom dead center position of the pouring nozzle. And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dispenser which is attached to the mouth of a bottle containing a liquid material having fluidity such as a liquid such as shampoo or rinse and a viscous liquid, and pours the liquid material to the outside.

[0002]

[Prior Art]

 Conventionally, there is known a dispenser which is attached to the mouth of a bottle containing a liquid substance having fluidity such as shampoo or rinse and pours out the stored item to the outside.

In such a dispenser, a hollow stem having a pouring nozzle at the upper end is provided with a piston reciprocating in the cylinder at the lower end, and the piston is moved up and down against the elastic force of a spring. The liquid is sucked into the cylinder when the check valve that cooperates with it is opened and closed, and then the liquid is passed through the stem and discharged from the pouring nozzle.

In such a conventionally known dispenser, the maximum stroke of the stem is set to a fixed length and cannot be changed. Therefore, when changing the discharge rate, it is possible to stop the stroke of the stem midway, but this makes it difficult to stop the position and adjust the force, and there is the inconvenience that a constant discharge rate cannot be obtained. It was

[0005]

[Problems to be solved by the device]

 This invention intends to surely stop the stroke of the stem at a predetermined fixed position and to obtain an arbitrary fixed discharge amount.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the means adopted by the present invention is a cylinder communicating with a container through a check valve, a piston that reciprocates along the poppet in the cylinder, and the piston is always moved forward. It consists of a spring that biases in the direction of the starting point, a hollow stem that is integrally connected to the piston, and a spout nozzle that also functions as a handle that has a spout passage that communicates with the stem through a check valve. In a dispenser that is attached to the mouth of a container by a cap, a stopper body that has an abutting portion that abuts the lower surface of the pouring nozzle and that can limit the lowering of the pouring nozzle can be moved vertically on the outer circumference of the cap. It is characterized by being attached.

[0007]

[Work]

 Since the dispenser is attached to the mouth of the container, a stopper against which the pouring nozzle collides is attached to the outer periphery of the cap so that it can move up and down, and the stem can be stroked within the interval between the stopper and the pouring nozzle. By moving the stopper up and down, the distance from the pouring nozzle can be increased or decreased as desired, which allows the stroke length of the stem to be changed arbitrarily and the discharge amount to be changed.

[0008]

[Effect of the device]

 According to this invention, the stroke of the stem can be changed and adjusted to an arbitrary length by a stopper, and a certain amount of liquid material corresponding to the adjusted stroke can be accurately discharged.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the figure, (1) is a bottle-shaped container, and a dispenser (3) is attached to its mouth (2).

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

Reference numeral (14) is a poppet disposed in the cylinder (6). The piston (9) is reciprocally guided by the poppet (14) and the bottom portion of the poppet (14) is guided. A spring (15) for urging the piston (9) toward the top dead center is stretched between the piston (9). A large diameter flange-shaped stopper (16) for limiting the upward movement of the piston (9) is formed at the upper end of the poppet (14), and an opening (17) is formed at the lower portion. The lower opening (7) of the cylinder (6) is provided with a check valve (18) such as a ball valve for preventing the liquid substance in the cylinder (6) from flowing back into the pipe (8). ..

The structure of the dispenser (3) as described above is well known in the art, and when the spout nozzle (11) is pushed down, the piston (9) is lowered integrally with the stem (10) and the forward stroke is performed. Then, the liquid substance existing in the cylinder (6) is compressed. The compressed liquid expands the upper part of the piston (9) outward and creates a gap between it and the poppet (14), from which it flows into the stem (10), and then the check valve (13). ) Is opened and is poured out from the outflow passage (12).

When the pushing force to the pouring nozzle (11) is released, the piston (9) rises due to the repulsive force of the spring (15) and enters the returning stroke, and the negative pressure is generated in the cylinder (6). Occurs. Due to this negative pressure, the check valve (18) is opened, the liquid substance in the container (1) is sucked into the cylinder (6) through the pipe (8), and is discharged by the next forward stroke. Saved for

In this invention, in this dispenser, a cylindrical stopper body (19) is vertically movably attached to the outer circumference of a cap (4) for mounting the dispenser (3) on the container mouth (2). Is characterized by. The stopper body (19) has a flat upper surface portion (20) capable of colliding with the lower surface of the spouting nozzle (11), and the spouting nozzle (11) is made to collide with the upper surface portion (20). , Further lowering of the pouring nozzle (11) is restricted. In other words, the distance (l) between the upper surface (20) and the lower surface of the pouring nozzle (11) is the stroke length of the stem (10), and the stroke length can be increased by moving the stopper body (19) up and down. It is possible to arbitrarily change from l ₁ to l ₂ .

In the embodiment shown in FIGS. 1 and 2, the stopper body (19) is screwed onto the outer periphery of the cap (4) by screw means (21) to move the stopper body (19) up and down. However, as shown in FIGS. 3 to 6, a stepped guide groove (22) is formed on the outer peripheral surface of the cap (4), and the projection (23) that engages with the stopper (22) is formed in the stopper body. The stopper body (19) may be provided so as to project from the inner surface of (19) and move up and down stepwise. A semi-circular click recess (24) with which the protrusion (23) engages is formed in the horizontal part of the guide groove (22), which ensures the stop of the stopper body (19) and the generation of a click feeling at the time of stop. To do so.

[Brief description of drawings]

 Fig. 1 Vertical sectional view of dispenser according to the present invention Fig. 2 External view showing operation Fig. 3 Vertical sectional view showing a modification of dispenser Fig. 4 External view showing operation Fig. 5 External perspective view of stopper body and cap Fig. 6 Guide groove Deployment view of

[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) Pouring nozzle ( 12) Pouring passage (13) Check valve (14) Poppet (15) Spring (16) Collar-shaped stopper (17) Opening (18) Check valve (19) Stopper body (20) Top part (21) Screw Means (22) Guide groove (23) Projection (24) Click recess

Claims (4)

[Scope of utility model registration request] 1. A cylinder communicating with a container via a check valve, a piston that reciprocates in the cylinder along a poppet, a spring that constantly urges the piston in a forward movement starting point direction, and a piston. A hollow stem that is integrally connected, and a dispenser nozzle that also serves as a handle having a dispense passage that communicates with the stem via a check valve, and a dispenser that is attached to the container mouth by a cap,
A dispenser, which has an abutting portion that abuts against a lower surface of a pouring nozzle, and which is attached to an outer periphery of the cap so as to be vertically movable so as to limit a downward movement of the pouring nozzle. 2. The dispenser according to claim 1, wherein the stopper body has a cylindrical shape which is inserted into the outer periphery of the cap, and the upper surface of the stopper body is a flat surface which abuts the lower surface of the dispensing nozzle. 3. A stopper body and a cap are screwed together by screw means so as to be vertically movable.
The dispenser according to (1) or (2). 4. The stepped guide groove is formed on the outer peripheral surface of the cap, and the protrusion engaging with the guide groove is formed on the inner peripheral surface of the stopper body. ) Described dispenser.