JPH0562452U - dispenser - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention is intended to allow the stroke length of the stem to be arbitrarily changed, thereby changing the discharge amount. [Structure] The upper end is in contact with the lower surface of the pouring nozzle, and a stopper tube that can limit the lowering of the pouring nozzle is attached to the outer periphery of the stem so as to be vertically movable. It is characterized in that the stroke is defined.

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 an ejection nozzle at the upper end is provided with a piston reciprocating in the cylinder at the lower end, and the piston is reciprocally moved vertically against the elastic force of a spring. The liquid substance is sucked into the cylinder with the opening and closing of the check valve that cooperates with the piston, and is further passed through the stem to be discharged from the discharge 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 is designed so that the stroke length of the stem can be changed and can be reliably stopped at a fixed and arbitrary position, and the discharge amount can be changed.

[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 the dispenser attached to the container mouth, the stopper pipe is attached to the outer periphery of the stem so that the upper end of the dispenser is in contact with the lower surface of the dispensing nozzle and can limit the lowering of the dispensing nozzle. To do.

[0007]

[Work]

 A stopper tube is attached to the outer periphery of the stem that reciprocates integrally with the pouring nozzle so that it can move up and down, and the stem can stroke within the interval between the stopper tube and the pouring nozzle. By moving up and down, it is possible to change the discharge stroke by changing the stroke length of the stem by arbitrarily increasing or decreasing the distance from the pouring nozzle.

[0008]

[Effect of the device]

 According to this 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 substance corresponding to the adjusted stroke can be surely 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. The 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), and a pouring nozzle (11) also serving as a handle is fixed to the upper end of the stem (10). To be done. A pouring passage (12) communicating with the hollow stem (10) is formed in the pouring nozzle (11), and for example, a ball is formed at a connecting portion between the stem (10) and the pouring passage (12). A check valve (13) made of a valve is provided to prevent the liquid material 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) upward is stretched between the piston (9) and the piston (9). The upper end of the poppet (14) is formed with a large-diameter flange-shaped stopper (16) for limiting the upward movement of the piston (9), and an opening (17) is formed in the lower part. The lower opening (7) of the cylinder (6) is provided with a check valve (18), such as a ball valve, which prevents 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 the dispenser of the present invention, the stopper pipe (20) is installed between the stem (10) and the mounting ring (19) for mounting the stem (10) on the upper part of the cylinder (6) together with the piston (9). ) Is arranged so that it can move up and down, and the distance between the stopper tube (20) and the pouring 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 relatively with respect to the mounting ring (19). It is possible to increase or decrease the distance (1) with which the lower surface of the spouting nozzle (11) collides. The lower surface of the dispensing nozzle (11) collides with the upper end of the stopper tube (20) to prevent further lowering, and the distance (l) is the stem (10) operating integrally with the dispensing nozzle (11). ) Reciprocating stroke length.

In the illustrated embodiment, the stopper tube (20) and the stem (10) are axially extended by a key (21) and a key groove (22) to allow relative axial movement and rotational direction. , And is connected by the key (23) and the key groove (24) like the spouting nozzle (11) and the stem (10). Thus, when the spout nozzle (11) is rotated, the stem (10) rotates integrally, and the stopper tube (20) moves up and down relative to the mounting ring (19) as the stem (10) rotates. Move. With the stopper tube (20) in the highest position and the distance (l) from the spout nozzle (11) to zero, the spout nozzle (11) cannot operate and is in a locked state suitable for transportation and storage. Can be obtained.

In the illustrated embodiment, the stopper tube (20) is moved up and down by rotating the pouring nozzle (11), but the invention is not limited to this. Of course, only the stopper tube (20) may be independently moved up and down.

[Brief description of drawings]

 Fig. 1 Vertical sectional view of dispenser Fig. 2 Vertical sectional view showing operation Fig. 3 Exploded perspective view of essential portions Fig. 4 IV-IV line sectional view Fig. 5 V-V line sectional view

[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) Discharge passage (13) Check valve (14) Poppet (15) Spring (16) Collar stopper (17) Opening (18) Check valve (19) Mounting ring (20) Stopper pipe (21) Key (22) Keyway (23) Key (24) Keyway

Claims (2)

[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 dispensing nozzle that also functions as a handle having a dispensing passage that communicates with the stem via a check valve. A dispenser characterized in that a stopper tube that comes into contact with the lower surface of the pouring nozzle and limits the downward movement of the pouring nozzle is attached to the outer circumference of the stem so as to be vertically movable. 2. The stem and the stopper tube are allowed to move relative to each other in the axial direction and are integrated in the rotation direction, and the stopper tube is moved up and down relatively with respect to the stem by the rotation of the stem. The dispenser according to claim (1).