JPH0562453U - dispenser - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention intends to stop the stroke of the stem at a plurality of stages so that the discharge amount can be changed in a plurality of stages. [Structure] A stopper piece extending in the forward direction is projectingly provided on a lower portion of the piston, a large diameter portion having an upper end portion with which the stopper piece abuts is formed on a lower portion of the poppet, and a stopper is provided on an outer surface of the large diameter portion. It is characterized in that an engaging groove into which the piece is engaged is formed.

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 intends to enable the stroke of the stem to be stopped at a plurality of step positions, and to change an arbitrary determined discharge amount in a plurality of steps.

[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 attached to the mouth of a container, a stopper piece extending in the forward direction is projectingly provided at a lower portion of a piston, and a large diameter portion having an upper end portion with which the stopper piece abuts is formed at a lower portion of a poppet. At the same time, an engaging groove into which the stopper piece is engaged is formed on the outer surface of the large diameter portion.

[0007]

[Work]

 At the tip of the piston that cooperates with the stem, a topper piece that abuts the upper end of the lower large diameter portion of the poppet is projected in the forward direction, and an engaging groove for inserting the stopper piece is provided on the large diameter portion of the poppet. The stroke of the piston is adjusted in stages by contacting the stopper piece with the upper end of the large diameter part or engaging it with the engagement groove. It is possible to change in stages.

[0008]

[Effect of the device]

 According to the present invention, the stroke of the stem can be adjusted stepwise by the stopper piece, and a certain amount of liquid material corresponding to the adjusted stroke can be reliably 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 plate-shaped or rod-shaped stopper piece (19) extending in the forward direction of the piston (9) is provided at the lower part of the piston (9), and the piston (9) is also projected. The tip of the stopper piece (19) is abuttable on the upper end of a large diameter portion (20) formed in the lower part of the poppet (14) to define the bottom dead center of the large diameter portion (20). An engaging groove (21) into which the stopper piece (19) is inserted is formed on the outer surface of the (20), and the stopper piece (19) is brought into contact with the upper end of the large diameter portion (20) or the engaging groove. It is characterized in that it can be placed in two positions, whether it is engaged with (21) or not, and that the bottom dead center position of the piston (9) can be changed in two steps by changing the position.

That is, the stroke length of the piston (9) can be changed in two steps according to the contact position of the stopper piece (19), and the stopper piece (19) has an upper end of the large diameter portion (20). The stroke length is short at the position where it abuts against and becomes long at the position where it is inserted into the insertion groove (21).

Whether the stopper piece (19) abuts the upper end of the large diameter portion or engages with the engagement groove can be easily performed by rotating the spout nozzle (11) through the system (10). The choice comes out. A positioning mark may be formed on the upper surface of the mounting ring (22) so that the positioning can be selected more easily and reliably.

It is also possible to form a plurality of engagement grooves (21) having different lengths in the large diameter portion (20) and change the stroke length in multiple steps.

[Brief description of drawings]

 Fig. 1 Longitudinal sectional view Fig. 2 External perspective view of essential parts Fig. 3 Fig. 4 showing the longest stroke state Fig. 4 Fig. 5 showing the shortest stroke state Fig. 5 Fig. 6 showing the operation Fig. 7 Fig. 7 showing the operation

[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 ) Pour nozzle (12) Pour passage (13) Check valve (14) Poppet (15) Spring (16) Collar stopper (17) Opening (18) Check valve (19) Stopper piece (20) Large Diameter (21) Engagement groove (22) Mounting ring

Claims (1)

[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. A stopper piece extending in the forward direction is projectingly provided at a lower portion, and a large diameter portion having an upper end portion with which the stopper piece abuts is formed at a lower portion of the poppet, and the stopper piece is engaged with an outer surface of the large diameter portion. A dispenser characterized by having an engaging groove formed therein.