JPS60183061A - One-way trigger type sprayer and dispenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trigger-type sprayer and dispenser in which a piston is reciprocated by full rotation of the trigger, thereby sucking up and pressurizing liquid in a container and discharging it.

For example, 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, a three-way (FIG. 1) or two-way (FIG. 2) trigger type sprayer is configured.

In a three-way trigger type sprayer (hereinafter referred to as a three-way sprayer), the liquid in the container is passed through the suction pipe 21.
0 and primary valves 211 and flows through a vertical flow path 212;
It then flows into the inclined channel 214. When the piston linked to the trigger is pushed into the inclined flow path 214, the liquid is pressurized and flows into the horizontal flow path 216r, and the liquid flows into the secondary valve 2.
17 and is sprayed from the orifice of the nozzle.

On the other hand, in a two-way trigger type sprayer (hereinafter referred to as a two-way sprayer), the inclined flow path is removed.
The piston is arranged in a horizontal flow path. In other words, the liquid that has flowed through the suction pipe 21o and the vertical flow path 212 is transferred to the primary valve 2ii.
It flows into the horizontal flow path 216 at t. The liquid is pressurized by the reciprocating movement of the piston, and the pressurized liquid is transferred to the secondary valve 2.
17 and is sprayed through the orifice.

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

Here, in the three-way sprayer, the pushing direction of the piston and the flow direction of the pressurized liquid do not match. That is, the pressurized liquid flows from the inclined flow path into the horizontal flow path under pressure, and the flow direction of the pressurized liquid changes. Therefore, a component of the liquid's pressure is transmitted to the atomizer body, causing a pressure drop in the liquid itself. Moreover, this type of three-way sprayer has a complicated structure because of the large number of flow channels, and therefore has a drawback that it requires a large number of parts and is 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 flow direction of the pressurized liquid 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 the actual technological competition, it is required to reduce the number of parts and produce the product at low cost, and even such a two-way sprayer is still insufficient.

The above discussion was about sprayers, but the same thing can be said about dispensers as well.

The present invention provides a one-way trigger type sprayer and dispenser that can be manufactured at extremely low cost by simplifying the configuration and reducing the number of parts to a limit of one. The portion corresponding to the sprayer body is integrally formed with the container and becomes a part thereof, and no flow path is formed in the portion corresponding to the sprayer body. The housing of the pump mechanism is integrally formed with a trigger and a cylinder,
It is attached to the part corresponding to the sprayer body. Furthermore,
The nozzle is integrally formed with the trigger. In other words,
According to this invention, as shown in FIG. 3, a one-way trigger type sprayer having only a horizontal flow path 216 formed by a cylinder can be provided at low cost. The same can be said about dispensers.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying FIGS. 4 to 9.

As shown in FIG. 4, the one-way trigger type sprayer 10 according to the present invention includes a container 12 and a pump mechanism 14 attached to the container 12.

As understood from this container 12Fi, FIGS. 4 and 5, a container main body 12a extending along the vertical direction,
The opening 12b is attached to the upright side surface 13 of the upper part of the container body and extends in the horizontal direction. In other words, the mouth portion 12bIIi of this container is opened laterally, and this portion corresponds to the conventional sprayer main body.

As can be clearly seen in FIG.
The piston 20 includes a housing 16 that is attached to the mouth portion 12'b of the cylinder, and a piston 20 that reciprocates within the cylinder as a trigger 22 rotates. One end of a suction pipe 24 is attached to the rear end of the cylinder 18, and the other end of the suction pipe 24 is curved and extends toward the bottom of the container 12. Here, the suction pipe 24 may be installed along the vertical direction perpendicular to the axis of the cylinder 18, but as shown in the figure, the suction pipe 24
A configuration in which the suction pipe 24 is attached along the axial direction of 8, that is, along the horizontal direction is also preferable from the viewpoint of the forming knee E. here,
The housing 16 and the trigger 22 are integrally molded, as shown in FIG. The cylinder 18 is the housing 1
It is attached to the middle part inside 6. In this configuration in which the pump mechanism 14 is directly attached to the container 12, the configuration is simpler as the tightening ring and the sprayer body are omitted compared to the conventional configuration in which the sprayer body is attached to the container using a tightening ring. can be converted into Note that an engagement protrusion 26 for preventing falling off and an engagement recess 28 into which the engagement protrusion is engaged are provided on the housing 16 and the mouth portion 12b of the container, respectively. Here, attach the retaining protrusion 26 to the cylinder 18.
The housing 16 is connected to the mouth portion 12 through the cylinder.
It may be attached to b.

As can be clearly seen from Figures 5 and 6, trigger 2
2 is rotatably molded integrally with the upper front end of the housing 16 via a thin hinge 30. The configuration in which the trigger 22 is integrally molded with the housing 16 in this way can eliminate an independent member and simplify the configuration, compared to the conventional configuration in which the trigger is formed separately from the cylinder. Further, a nozzle 34 having an orifice 32 formed in the center is integrally molded with the trigger 22. Therefore, the configuration can be similarly simplified. The lower edge of this nozzle 34 is rotatably molded integrally with the trigger 22 via a thin hinge 36.

The piston 20 of the pump mechanism is connected to the cylindrical portion 3. of the nozzle 34, as shown in FIG. a front portion fitted within /la;
and a rear portion housed within the cylinder 18. Furthermore, flared skirt-like seal pieces 38 and 40 that are in contact with the inner wall of the cylinder 18 are formed at the intermediate and rear end portions of the piston 20, respectively. The piston 20 is formed into a hollow cylindrical shape with an axial flow path inside, and has an open front end and a hole 42 formed at the rear end.

A secondary valve 44 is housed in the flow path of the piston 20. The secondary valve 44 includes a valve body 46 that can close the hole 42 at the rear end of the piston, and a spinner 48 that abuts against the back surface of the nozzle 34. , and a compression wave spring 50 provided between them. In this structure in which the secondary valve 44 is integrally formed with the spinner 48, the profit margin is reduced and assembly is simplified. This spring 50, valve body 4
6 so that it closes the hole 42, and the spinner 4
8 are each biased such that it abuts the nozzle 34.

As shown in FIG. 7, the valve body 46 includes a cylindrical valve body 46a that can close the hole 42, and a guide portion 46b consisting of four blades extending in the radial direction. Also spinner 4
8 includes a disk-shaped spinner body 482 and a guide portion 4.8b consisting of four spinners extending in the radial direction. Note that a circular recess 48 is provided on the front surface of the spinner main body 48a.
C, and a pair of mutually parallel channels 48d extending tangentially from the recess 48C. In this spinner 48, the tangential flow path 48d alone does not have the function of a spinner because its front surface is open. However, when the spinner 48 comes into contact with the nozzle 34, the front surface of the flow path 48d is blocked, so that it acts as a spinner, and when the pressurized liquid flows from the flow path 48d into the recess 48C, it is turned into a vortex and flows through the orifice 32. sprayed through.

As shown in FIG. 5, a hollow extending portion 52 is provided at the rear end of the cylinder.
is formed, and a primary valve unit 54 is attached to an extending portion of and. - The next valve unit 54 has a fitting hole 56 into which the suction pipe 24 is fitted, and a liquid inlet hole 58 communicating with the fitting hole.
A second valve 60, which is a ball valve in the embodiment, is arranged to open and close the liquid inlet hole 58.

- The next valve 60 is not limited to a ball valve, as long as it is pressed against the valve seat by its own weight without using the full valve spring. For example, plate valves can also be used. Further, the liquid inlet hole 58 does not need to be vertical and may be inclined, as long as the secondary valve 60 is allowed to be pressed against the valve seat by its own weight. In such a one-way trigger type sprayer lO, the primary valve 6 is closed by its own weight without using a valve spring.
If 0 is pressed against the valve seat, the primary valve quickly separates from the valve seat in response to negative pressure in the cylinder. Therefore, the liquid can immediately flow into the pressurizing chamber from the suction pipe 24 via the primary valve 60, and can be efficiently sucked up without any time lag. A compression coil spring 62 is disposed between the left end of the next valve unit 54 and the rear end of the piston 20 to bias the piston in the direction of protruding from the cylinder 18.

As can be seen from FIGS. 5 and 6, an inverted engaging portion 64 is formed on the back of the trigger 22. As shown in FIGS. Further, a lock bar 68 is rotatably formed integrally with the lower end of the housing 16 via a hinge 66. A pin-shaped retaining portion 70 that can be engaged with the engaging portion 64 is formed at the tip of the lock bar 68 . When the pin-shaped retaining portion 70 engages with the inverted 11-shaped engaging portion 64 as shown in FIG. 6, the trigger 22 is prevented from rotating counterclockwise and is locked. On the other hand, a protrusion 77 is formed on one side of the lock bar 68 and is inserted into and clamped by a holding part formed on the nousing 16, such as a slit 72.

As shown in FIG. 8, when the protrusion 74 is inserted into the slit 72 and clamped, the trigger 22 can be rotated because the lock bar 68 does not prevent the trigger 22 from rotating. The rotation of the tab trigger 220 can be controlled, and the combination of the trigger's inverted engagement portion 64 and the locking bar 68 of the housing can be used as a child-proof mechanism. The holding portion may not be a slit but may have another form, such as a holding protrusion.

As shown in FIG. 5, a negative pressure prevention hole 76 is formed in the cylinder wall. The negative pressure prevention hole 76 communicates with the inside of the main body 12a of the container via the mouth portion 12b. In addition, the negative pressure prevention hole 76 is closed to the seal piece 3 before the trigger 22 is rotated.
8.40 and the trigger is sufficiently rotated (see FIG. 8), the outer seal piece 38 is positioned above the negative pressure prevention hole. Therefore, when the trigger 22 is sufficiently rotated, the inside of the container 12 is communicated with the atmosphere through the negative pressure prevention hole 76. Note that a space inside the cylinder 18 located behind the piston 20 is defined as a pressurizing chamber 78 by the cutout 60 and the secondary valve 44 .

Further, as shown in FIGS. 6 and 9, the trigger 22
A pair of retaining protrusions 80 are formed on the inner wall of the housing 16, and a corresponding pair of engaging protrusions 82 are formed on the outer wall of the trigger 22 so as to restrict the rotation of the trigger 22. The piston 20 is biased by the compression spring 62 in the direction of protruding from the cylinder 18, and its protruding position is aligned with the engagement protrusion 80.8.
1, that is, the counterclockwise rotational position of the trigger 22, is also limited by the engagement of the locking protrusions 80, 82. However, it goes without saying that clockwise rotation of the trigger 22, in other words, sliding of the piston 20 inward of the cylinder 18 is permitted.

The operation of the sprayer 10 configured as above will be explained below.

At the stage of transportation and display at a store, as shown in FIG. 5, the engaging part 70 of the lock bar is engaged with the engaging part 64 of the trigger. In this state, even if a pushing force is applied to the trigger to rotate the trigger 22 counterclockwise around the hinge 30, the trigger is blocked by the lock bar 68 and cannot be rotated. Therefore, the trigger 22 will not rotate inadvertently, and unnecessary spraying can be prevented. In other words, childproofing can be achieved. In this embodiment, the retaining part 64 and lock bar 68 that constitute the childproof mechanism are integrally constructed with the constituent members of the pump mechanism, such as the trigger 22 and the /1 housing 16, so that the structure is simple. It can be extremely simplified. Needless to say, this child-proof mechanism can be used not only for virgin locks, but also when stopping heavy use.

In use, first, the engagement parts 64 and 70 are disengaged, and then the lock bar 68 is rotated in the counterclockwise cutting direction around the hinge 66, and the protrusion part 74 is inserted into the slit 7 of the housing.
Hold within 2. If the lock bar 68 is held in this way, the lock bar will not interfere with the rotation of the trigger 22. Then, when the trigger 22 is pulled counterclockwise, that is, toward the user, the trigger is rotated around the hinge 30 against the biasing force of the compression spring 62. Then, trigger 2
The piston 22 is pushed into the cylinder 18 in response to the 20 rotations, and the volume of the pressurizing chamber 78 is reduced.

At this time, as can be seen from FIG. 8', the nozzle 34 is
Only the lower edge is connected to the housing 16 via the hinge 36, and the upper edge is free.

Therefore, in response to the rotation of the trigger 22, the nozzle 34
It can move horizontally in an almost straight position without turning. In this way, the piston 20 is pushed into the seven cylinders 18 while maintaining its horizontal state. Note that it is sufficient that the nozzle 34 is integrally formed with the trigger so that the piston 20 reciprocates while maintaining an upright state without rotating together with the trigger 22. Further, the nozzle 34 may have a configuration in which all or part of the upper edge' or side edge instead of the lower edge is connected to the trigger 22. However, if the lower edge of the nozzle 34 is connected to the trigger 22, the stroke of the piston in response to the rotation of the trigger can be increased, which is preferable.

After that, except for the pressing force on the trigger 22, the compression spring 6
The biasing force of 2 causes the piston 20 and the +7 gar to return to the initial position shown in FIG.

Then, a negative pressure is generated in the pressurizing chamber 78 whose volume increases. Therefore, the -water valve 60 is separated from the valve seat against its own weight, and the liquid in the container 12 is pumped through the suction pipe 24, -
The water flows into the pressurized chamber via the water valve. Note that the -water valve 60 is pressed against the valve seat by its own weight at the time when the inflow of liquid is finished. Here, the secondary valve 44 is pressed against the valve seat by the biasing force of the compression spring 50, and the negative pressure in the pressurizing chamber 78 acts to press the secondary valve 44 against the valve seat. Sufficient liquid tightness of the next valve is ensured.

Here, as the liquid in the container 12 is sucked up into the pressurizing chamber 78 through the pipe 24, the liquid in the container decreases, and there is a possibility that the pressure inside the container becomes negative. However, the negative pressure protection IE hole 76 is formed in the cylinder 18, and the piston 2
When the 0 is pushed into the cylinder, the seal piece 38 moves onto the negative pressure prevention hole, as shown in FIG. Therefore, the inside of the container communicates with the atmosphere through the negative pressure prevention hole 76, and air flows into the container, so that negative pressure is prevented.

After that, when the trigger 221 is rotated counterclockwise around the hinge 30 again, the piston 20 moves into the cylinder 18.
move inward. Then, as the trigger 22 is rotated, the piston 20 moves into the cylinder 18 and pressurizes the liquid in the pressurizing chamber 78. When the liquid is pressurized and this pressure becomes greater than the biasing force of the compression spring 50 of the secondary valve, the valve body 46 separates from the valve seat and the secondary valve 44 is opened. Here, the front surface of the spinner 48 is brought into contact with the nozzle 32 to close the front surface of the tangential flow path 48d (see FIG. 5). Therefore, the pressurized liquid flowing out from the hole 42 flows through the flow path 48d.
The liquid flows into the interior, is swirled, and is sprayed from the orifice 32 through the recess 48cf. Then, by pressing the trigger 22, the liquid in the container 12 is sucked up into the pressurizing chamber 78, and preparation for the next spray operation is completed, and by pulling the trigger 22, the next spray is refilled. It will be done.

Note that this sprayer 10 can be used simply as a dispenser except for the spinner 48t-. In addition, the liquid that is turned into a vortex and is sprayed from the orifice 32 collides with a foaming means such as a barrier to foam, so that it can also be used as a foamer. As described above, the trigger type sprayer according to the present invention includes a container having a mouth extending laterally, a housing integrally provided with a cylinder to which a suction pipe is attached to the inner end and attached to the mouth of the container, and a housing. The cylinder includes a rotatable trigger integrally molded with the cylinder, and a hollow piston having an axial flow path therein and slidably disposed within the cylinder. , and furthermore, a trigger type atomizer has a primary valve disposed at the outer end of the cylinder, which controls the flow of liquid from the suction tube by being pressed against the valve seat by its own weight, and a trigger type valve at the inner end of the flow path of the piston. A secondary valve that is freely disposed together with the primary valve defines a pressurized chamber in the cylinder, and an orifice that communicates with the flow path of the piston. It comprises a nozzle to which the outer end is attached and a spinner disposed in the flow path of the piston at the back of the nozzle. With this configuration, the part corresponding to the conventional sprayer main body is integrated with the container and becomes a part of it.
No flow path is formed in the portion corresponding to the sprayer body.

In other words, it only has a horizontal flow path formed by the cylinder. Therefore, it is possible to provide a new type of one-way trigger type sprayer that maintains the advantages of the conventional two-way sprayer. It also has an integral housing or cylinder, with a trigger and a nozzle integrally molded into the housing and the trigger, respectively. In other words, the housing, trigger, and nozzle, which were independent members in the conventional configuration, are integrally molded. Therefore, the number of independent parts is reduced, the configuration is simplified, and the trigger type sprayer can be easily assembled and produced at low cost. Furthermore, even though there is only a horizontal flow path, the -water valve is pressed against the valve seat by its own weight, so that the primary valve can be quickly separated from the valve seat in response to negative pressure in the pressurizing chamber. Therefore, the liquid can be efficiently sucked up from the suction pipe into the pressurizing chamber via the primary valve.

It goes without saying that a one-way trigger-type dispenser can be provided by removing the spinner from the one-way trigger-type sprayer according to the present invention.

The above embodiments are for illustrating this invention, and are not intended to limit this invention in any way, and any modifications, alterations, etc. made within the technical scope of this invention are also included in this invention. Needless to say, it is included. For example, the trigger type of foaming means is I! Even if it is attached to a J-fogger and used as a foamer, it is also included in this explanation.

[Brief explanation of drawings]

FIGS. 1 and 2 are diagrams of the operating principles of known three-way and two-way trigger type sprayers, and FIGS. 3 to 9 are diagrams of the one-way trigger type sprayer according to the present invention, and FIG. 3 is a diagram of the operating principles. , Figure 4 is a right side view, Figures 5 and 8 are longitudinal cross-sectional views of the trigger before and after rotation, Figure 6 is a partial perspective view, Figure 9 is a partial front view, and Figure 7 is the trigger type. FIG. 3 is a perspective view of the secondary valve of the sprayer. 10... One-way trigger type sprayer, 12.
...Container, 12b... Container mouth, 14... Pump mechanism, 16... Housing, 18... Cylinder, 2
0...Piston, 22...T+)i-132...
Orifice, 34... Nozzle, 44... Secondary valve, 4
8... Spinner, 60... - yawning, 64... Engaging portion, 66... Hinge, 68... Lock bar, 70...
...Engagement part, 72...Slit, 74...Protrusion part Patent applicant CANYON Co., Ltd. agent Patent attorney Takashi Warashina'i61 figure'! s2@ ; Yu3@ %4 figure

Claims (10)

[Claims] (1) A container having a mouth extending in the horizontal direction, a housing integrally equipped with a cylinder to which a suction pipe is attached to the inner end and attached to the mouth of the container, and a rotatable housing integrally molded with the housing. a trigger, a hollow piston having an axial flow passage therein and slidably disposed within the cylinder; A primary valve that controls the flow of liquid from the riser pipe, a secondary valve that is openable and closable at the inner end of the piston's flow path and defines a pressurized chamber in the cylinder together with the primary valve, and the piston's flow path. The trigger includes a nozzle that is non-rotatably molded integrally with the trigger and has an orifice that communicates with the trigger and has several outer ends of the piston, and a spinner that is provided in the flow path of the piston at the back of the nozzle. One-way trigger type sprayer. (2) The one-way trigger type sprayer according to claim 1, wherein the trigger is integrally molded with the No-Uji puffer fish, with its upper edge connected to the housing via a hinge. (3) The one-way trigger type sprayer according to claim 1 or 2, wherein the nozzle is integrally molded with the trigger, with its lower edge connected to the trigger via a hinge. (4)) The U-gar has an engaging part on its back, and the housing has an integrally molded rotatable lock bar and a retaining part for the lock bar, and this lock bar is attached when the trigger is in the initial position. The patent claim has a corresponding retaining part that engages with the engaging part of the trigger and prevents rotation of the trigger, and also has a held part that is held in the retaining part of the housing without hindering the rotation of the trigger. Range 1st to 3rd
A one-way trigger type sprayer as described in any of the above. (5) The engaging part of the 17 gar has an inverted shape, and the corresponding retaining part of the lock bar has a pin-like shape.The retaining part of the housing is still a slit, and the held part of the lock bar is a slit. 5. The one-way trigger type sprayer according to claim 4, wherein each of the protrusions has a shape that can be held between the two. (6) A container having a mouth extending in the horizontal direction, a housing integrally provided with a cylinder to which a suction pipe is attached to the inner end and attached to the mouth of the container, and a rotatable container integrally molded with the housing. A trigger, a hollow piston that has an axial force + ojO flow path inside and is slidably disposed within the cylinder, and is disposed at the outer end of the cylinder and is pressed against the valve seat by its own weight to generate suction. A primary valve that controls the flow of liquid from the pipe, a secondary valve that is freely openable and closable at the inner end of the piston's flow path and defines a pressurized chamber in the cylinder together with the primary valve, and a secondary valve that controls the flow of liquid from the piston. A one-way trigger type dispenser having a communicating orifice and a nozzle that is non-rotatably molded integrally with the trigger and to which the outer end of the piston is attached. (7) The one-way trigger type dispenser according to claim 6, wherein the upper edge of the trigger is connected to the housing via a hinge and is integrally molded with the housing. (8) The one-way trip-type dispenser according to claim 6 or 7, wherein the nozzle is integrally molded with the trigger with its lower edge connected to the trigger via a hinge. (9) The MJ trigger has a retaining part on its back, and the housing is equipped with an integrally molded rotatable lock bar and a retaining part for the lock bar, and this lock bar is attached when the trigger is in the initial position. Claims include a corresponding retaining portion that engages with the engaging portion of the trigger to completely prevent rotation of the trigger, and a retained portion that is held by the retaining portion of the housing without hindering the rotation of the trigger. 6th A to 8th
One-way triggerata and eve dispenser listed in the section below. (10)) The engaging part of the rigger has an inverted shape, the corresponding retaining part of the lock bar has a pin shape, the holding part of the housing has a slit, and the held part of the lock bar is held in the slit. 10. A one-way trigger-type dispenser as claimed in claim 9 in which each of the possible protrusion shapes is taken.