JPS59160562A - Trigger type atomizer - Google Patents

Abstract

PURPOSE:To simplify the constitution and to reduce the number of parts by providing an engaging part to a vessel of a cylinder on the intermediate part, and providing a suction pipe and a trigger having a nozzle, on one end and the other end, respectively. CONSTITUTION:A pump mechanism 14 consisting of a cylinder 16 and a piston 18 is provided in a vessel 12, and one end of a suction pipe 20 is attached to one end of the cylinder 16, a trigger 26 is formed as one body so as to be turnable on the other end through a hinge 27, and also a nozzle 28 is formed as one body on the trigger 26. In this way, the constitution is simplified, the number of parts is reduced to the limit, and an inexpensive trigger type atomizer is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trigger type atomizer that reciprocates a piston by rotating a trigger, thereby sucking up liquid in a container, pressurizing it, and spraying it.

This type of sprayer includes a sprayer body that is attached to the mouth of the container. Depending on the number of channels formed in the sprayer body, three-way (Fig. 1) or two-way (
(Fig. 2) is called a trigger type atomizer. In a three-way trigger type sprayer (hereinafter referred to as a three-way sprayer), the liquid in the container is pumped through the suction tubes 210 and 1.
It passes through the next valve 211 and flows through the vertical flow path 212 .

It then flows into the inclined channel 214. When the piston linked to the trigger is pushed into the diagonal flow path 214, the liquid is pressurized and flows into the horizontal flow path 216, where it flows into the secondary valve 217.
and is sprayed from the orifice of the nozzle. On the other hand, in a two-way trigger type atomizer (hereinafter referred to as a two-way atomizer), the inclined flow path is eliminated and the piston is disposed in a horizontal flow path. In other words, the liquid that has flowed through the suction port 210 and the vertical flow path 212 passes through the primary valve 211 and flows into the horizontal flow path 216.

The reciprocating movement of the piston pressurizes the liquid, and the pressurized liquid is sprayed through the secondary valve 217 and the orifice.

The cylinder, which together with the piston constitutes the pump mechanism, is formed in the inclined flow path (in the case of three-way type) or horizontal flow path (in the case of two-way type) in the main body of the sprayer. Further, the bird is formed separately from the sprayer main body and is rotatably attached to the sprayer main body.

In a three-way sprayer, the pushing direction of the piston and the flow direction of the pressurized liquid do not match.

In other words, the pressurized liquid flows from the inclined channel to the horizontal channel and the flow direction changes. Therefore, a component of the liquid pressure is transmitted to the atomizer body, creating a pressure drop. Furthermore, this type of sprayer has a disadvantage that it has a complicated structure because of its large number of flow channels, and therefore has a large number of parts, making it difficult to produce at a low cost. On the other hand, in a two-way sprayer, the direction in which the piston is pushed and the direction in which the pressurized liquid flows coincide, so no pressure drop occurs.

Two-way sprayers also have a relatively small number of parts and can be produced fairly inexpensively.

However, in actual technological competition, it is required to reduce the number of parts and produce products at low cost.

The object of the present invention is to provide a trigger tights sprayer that can be manufactured at extremely low cost by simplifying the structure and reducing the number of parts to the limit. In order to achieve this object, according to the present invention, a portion corresponding to a conventional sprayer body is integrally constructed with the container and becomes a part thereof, and no flow path is formed in the portion corresponding to the sprayer body. And the trigger stop is integrally formed with the cylinder of the pump mechanism.

It is attached to the part corresponding to the main body of the sprayer. Furthermore, the nozzle is formed integrally with the trigger.

In other words, according to the present invention, a one-way trigger tights sprayer having only the horizontal flow path 218 formed by the cylinder as shown in FIG. 3 can be provided at low cost.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 4 to 6, the one-way trigger tights sprayer 1° according to the present invention includes a pump mechanism 14 attached to a container 12. As shown in FIGS.

As can be clearly seen from FIG. 6, the pump mechanism 14 includes a cylinder 16 that forms a horizontal flow path and a piston 18 that reciprocates within the cylinder. One end of a suction pipe 20 is attached to one end of the cylinder 16, and the other end of the suction pipe is curved and extends toward the bottom of the container. Here cylinder 1
Although the suction pipe 20 may be attached along the direction perpendicular to the axial direction of the cylinder 6, a configuration in which the suction pipe 20- is attached along the axial direction of the cylinder as shown in the figure is preferable from the viewpoint of molding. Further, the pump mechanism 14 is attached to the container by fitting the other end of the cylinder 16 into the opening 13 of the container 120.

In this configuration in which the pump mechanism 14 is directly attached to the container 12, the tightening ring and the sprayer body are omitted and the configuration is simplified compared to the conventional configuration in which the sprayer body is attached to the container using a tightening ring. can. Note that reference numerals 22 and 24 respectively indicate retaining/hole projections and holes formed in the cylinder 16 and the mouth portion 13 to prevent them from falling off.

Furthermore, as shown in Fig. 6, the bird -H is the hinge 2.
It is rotatably integrally molded to the other end of the cylinder 16 via a bolt 7. In this way, compared to the conventional structure in which the trigger is formed separately from the cylinder, an independent member can be omitted and the structure is simplified. Furthermore, since the nozzle 28 is molded integrally with the trigger 26, the configuration can be similarly simplified.

The piston 18 of the pump mechanism 14 includes a first piston 32 fitted within the nozzle 28 and a second piston 34 fitted within the first piston. Also, the first piston 3
The second piston 2 and the second piston 34 each have a skirt-like sealing piece 36, 38 on their outer periphery, which slides against the inner surface of the cylinder 16. Furthermore, a secondary valve 40 is integrally molded at the tip of the first piston 32. The valve body 42 of this secondary valve 40 is connected to the first piston 32 by three isometrically shaped flexible arms 44 (see FIG. 7). Therefore, under normal conditions, the valve element 42 is biased by the elasticity of the arm 44 to form a seal between the valve seat 46k formed on the first piston 32 and the valve seat.

However, since the arm 44 extends in the circumferential direction, the valve body 42 can move in the axial direction of the piston 18 so as to move away from the valve seat 46.

When the valve body 42 is separated from the valve seat 46 by the pressurized liquid, the valve body comes into contact with a nozzle spinner 48 (see FIG. 8) formed on the back surface of the bird -26. This spinner 4
8, the tangential flow path 50 has an open back surface and therefore does not function as a spinner. However, when the valve body 42 comes into contact with the spinner 48, the back surface of the flow path 5θ is closed, so it acts as a spinner, and the pressurized liquid is transferred to the flow path 5θ.
The flow is turned into a vortex by the flow.

Furthermore, a pulp rod 52 is freely disposed within the cylinder 16. As best seen in FIG. 9, the pulp rod 52 has a large diameter having a pair of conical ends 54, 56, a square section 58 connected to the end 54, and an inclined shoulder 59 connected to the square section. , and a small-diameter cylindrical portion 62 located between the large-diameter cylindrical portion and the end portion 56. In addition, a shoulder portion 64 having a curved surface is provided at the connection portion between the end portion 54 and the square portion 58 , and a shoulder portion 64 is formed between the small diameter cylindrical portion 62 and the end portion 58 .
Shoulder portions 66 made of perpendicular lines are formed at the connection portions with the respective connecting portions. The shoulder portion 64 is formed to be able to abut against four protrusions 68 formed on the inner surface of the second piston 34, and the shoulder portion 66 is formed to be able to abut against a radial rib 70 formed on the inner surface of the cylinder 16. . Furthermore, the shoulder portion 59 of the large diameter conical portion 60
is formed so as to be able to come into contact with a shoulder portion 72 formed on the inner surface of the cylinder 16, and a primary valve 73 is constituted by this contact. Note that the protrusion 68 is formed so as to be able to come into contact with the outer periphery of the square portion 58.

The piston 18 is disposed within the cylinder 16 and is biased in the protruding direction by the next compression coil spring 74, and is maintained in a position where the spring 74 has a free length.

An engaging portion 76 is formed at the free end of the -26 bird.

Then, the hinge 78 is connected to the cylinder 16.
) /4-B 6 is formed, and a corresponding retaining portion 82 that can be engaged with the retaining portion 76 is formed at the tip of the support bar. A portion 84 of the corresponding retaining portion 82 is formed so as to be retainable in a retaining hole 86 formed in the container 12.

Note that there is a hinge 80 at the connection between the trigger 26 and the nozzle 28.
, 82 are formed, respectively, and these hinges act to allow the piston 18 to move along the axis of the cylinder without pivoting about the hinge 27 as the trigger pivots about the hinge 27. ing. Hin-72
'7°7B, 80.82 is not limited to the shape shown in the figure, but any shape that allows the desired operation is sufficient. For example, the 10th
As shown in the figure, it may be formed from a thin portion consisting of a partially annular portion.

The sprayer 10 having the above configuration is used in the following manner.

At the stage of transportation and store, as shown in FIG.
2 is engaged. In this state, if a pushing force is applied to the trigger to rotate the trigger 26 clockwise around the hinge 27)! Jff-2 attempts to rotate along an arc indicated by reference numeral 90. However, the support bar 80 can only rotate around the hinge 78 along an arc shown by reference numeral 92, and will not support even if the above-mentioned pushing force is applied to the trigger 26).
/? - cannot be rotated. Therefore, the trigger cannot be rotated even if a pressing force is applied to the trigger in a state where the retaining portions 76 and 82 are engaged with each other. Therefore, the trigger does not rotate inadvertently, and unnecessary spraying can be prevented. In other words, child togeruf can be achieved. In the embodiment, since the child roof mechanism is integrally constructed with the pump mechanism 14, the construction can be extremely simplified. Needless to say, this child roof mechanism can be used not only for virgin locks but also when temporarily discontinuing use. In addition, the child togeroof mechanism is the first
As shown in Figure 2, the support par 180' is attached to the hinge 17.
A structure in which the bird is formed at -26 through 8 may also be used. In the embodiment of FIG. 12, the engaging part 176 of the trigger is engaged with the cylinder 16, and in use the support par 180 has another engaging part 183 engaged with the corresponding engaging part 185 of the trigger. Ru.

In use, the engagement portions 76 and '82 are disengaged and the support par 80 is rotated clockwise around the hinge 78 to insert the portion 84 into the engagement hole 86 of the container 12, as shown in FIG. Engage and lock as shown. By locking the support par 80 in this way, the support nozzle becomes trivial, f-26
It does not impede the rotation of the Then, when the trigger 26 is pulled toward you, the trigger resists the biasing force of the spring 74,
It is rotated around the hinge 27. Then, the piston 18 is pushed into the cylinder 16 in response to the rotation of the trigger 26, and the volume of the chamber 94 inside the cylinder is reduced. At this time, the piston 18 is pushed into the cylinder without rotating around the hinge 27 due to the presence of the hinges 80 and 82. Thereafter, when the trigger is not pressed, the biasing force of the spring 74 causes the piston 18 and the bird -26 to return to the initial position shown in FIG. 6, and the volume of the chamber 94 increases, creating a negative pressure inside the chamber. arise. When the piston 18 returns to its initial position, the projection 68 of the second piston 34
contacts the shoulder 64 of the valve rod 52, moves the valve rod together with the piston, and separates the shoulder 69 of the pallblon from the shoulder 72 of the cylinder 16. Therefore, the next valve 73 is opened and the negative pressure inside the chamber 94 causes the container 1 to
The liquid in 2 flows into the chamber via the suction pipe'so-next valve. Here, the secondary valve 4θ is closed by the biasing force of the arm 44, and the negative pressure inside the chamber acts in the direction of closing, so that the secondary valve is sufficiently liquid-tight. There is a risk that the liquid in the container will decrease as it is sucked into the chamber 94 through the riser pipe 20, and the pressure inside the container will become negative.However, a negative pressure hole 95 is formed in the cylinder 16, and the piston 18 When the container is pushed into the container, the seal piece 36 moves beyond the negative pressure hole as shown in FIG. be done.

Thereafter, when the trigger 26 is rotated counterclockwise around the hinge 27 again, the protrusion 68 of the second piston 34 moves while contacting the outer periphery of the square portion 58 of the valve par 52. Therefore, due to the frictional force between them, the pulp nozzle also moves together with the trigger 26 and the piston 18, and the shoulder 5
9 comes into contact with the shoulder 72, thereby closing the primary valve 73. Thereafter, as the trigger 26 is rotated, the piston 18 moves into the cylinder 16 and pressurizes the liquid in the channel 94. If the liquid is pressurized and becomes larger than the biasing force of the arm 44 of the secondary valve 4θ, the valve body 4? is moved away from the valve seat 46 to open the secondary valve. Here, the valve body 42 comes into contact with the back surface of the spinner 40 and closes the back surface of the radial flow path 50 (see FIG. 6), so the pressurized liquid flowing out from the secondary valve 40 flows into the flow path 50 and creates a vortex flow. and is sprayed from the orifice 36. And ToIJ 7! /' -2t%6 The liquid in the container 12 is sucked up into the chamber 94 and preparation for the next spraying operation is completed, and the next spraying is repeated by pulling the trigger.

Note that this sprayer 10 can be used as a dispenser except for the spinner 48. In addition, the liquid sprayed from the orifice 36 in a vortex state can be used as a foamer by colliding with a foaming means such as a barrier to foam the fluid. Furthermore, the pump mechanism 14 may be attached above the container 12 instead of on the side, and the piston 18 may be configured to reciprocate in the vertical direction.

As described above, according to the present invention, the cylinder is integrally provided with a retaining part for the container in the middle part, a part for attaching the suction pipe in one end part, and a bird part in the other end part, and
The nozzle is integrally formed on the bottom. In such a configuration, the conventional sprayer main body is omitted, and the bird, nozzle, etc., which were conventionally independent members, are formed integrally with the sill, simplifying the configuration and reducing the number of independent parts. Furthermore, it is easy to assemble and the sprayer can be produced at low cost. Furthermore, the present invention can provide a new type of sprayer called one-way, which maintains the advantages of the conventional two-way sprayer.

It should be noted that the illustrated embodiment merely shows one embodiment of the present invention, and it goes without saying that the present invention also includes substitutions, changes, etc. made within the technical concept of the present invention.

[Brief explanation of drawings]

Figures 1 to 3 show the conventional three-way system. Schematic diagrams of two-way and one-way trigger-type atomizers according to the invention; FIGS. 4 and 5 are partial side views and partial front views of the trigger-type atomizer according to the invention; FIGS. 6 and 11 are diagrams showing the piston in its initial position ( (extended position) and pushed-in position. 4 and 5 are partial cross-sectional views of the tri-type atomizer, FIG. 7 is a front view of the first piston, FIG. 8 is a rear view of the nozzle spinner, and FIG. 9 is a pulp/J-type atomizer. FIG. 10 is a perspective view and a sectional view showing a modification of the hinge. FIG. 12 is a sectional view showing a modification of the child toge roof mechanism. 10... One type of bird sprayer, 12... Container, 1
4...Pong mechanism, 16...Cylinder, 18...
Piston, 20... Suction pipe, 26... Trigger, 28... Nozzle, 30... Orifice. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 I To 2 Figure 4 Figure 3 r' 0 Figure 5 Figure 7 Figure 9 Figure 8 Figure I: In Figure 10

Claims (1)

[Claims] A trigger that causes a piston to reciprocate within a cylinder by rotating the trigger, thereby sucking up and pressurizing the liquid in the container through the suction pipe and spraying it through the orifice of the nozzle. In this type of sprayer, the cylinder has a retaining part for the container in the middle part, a part for attaching the suction pipe in one end part, a trigger in the other end part, and the nozzle is integrated in the trigger. A trigger type sprayer characterized by being formed as follows.