JPH01203065A - Spinner for dispenser and dispenser - Google Patents

Abstract

PURPOSE:To rapidly mold a spinner at low cost by boring a blind hole-shaped flow path communicating with a nozzle flow path to the rear of a spinner bottom and providing a recessed part opposite to an orifice of the bottom part of a nozzle cap to the center of the tip of the spinner bottom. CONSTITUTION:A closed-end cylindrical spinner 10 made of synthetic resin is allowed to interpose between a nozzle 22 and a nozzle cap 28 in the nozzle tip of a dispenser and pressurized liquid flowing in the nozzle is swirled. In this case, a blind hole-shaped flow path 34 communicating with a nozzle flow path is bored to the rear of a spinner 10 bottom and also a recessed part 38 opposite to an orifice 30 provided to the bottom part 39 of a nozzle cap is provided to the center of the tip of this spinner bottom. The recessed part 38 is directly communicate with the blind hole-shaped flow path 34 in the outer edge thereof. The spinner 10 is easily molded by forming the flow path 34 and the recessing part 38 in such a way. Furthermore, the communication of the flow path 34 with the recessed part 38 is interrupted and leak of liquid is prevented by closely sticking the central cylinder part of the nozzle cap to the bottom face of the recessing part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spinner for a dispenser and a dispenser that turns pressurized liquid flowing in a nozzle of the dispenser into a vortex.

[Conventional technology]

In a dispenser, for example, a trigger type dispenser, a piston reciprocates in conjunction with the swinging of the bird, sucks up the liquid contained in the container into the cylinder, pressurizes it, and causes it to wave from the orifice.

A nozzle cap is attached to the tip of the nozzle of the dispenser, and a spinner is interposed between the nozzle cap and the nozzle at the tip of the nozzle. The nozzle cap is usually screwed on so that it can turn once, but it may also be attached so that it can slide.
In any case, the nozzle cap is arranged so that the bottom back surface of the nozzle cap and the bottom tip of the spinner are in close contact with each other.

In known dispensers, the spinner is a bottomed spinner having a recess in the center of the bottom tip and a pair of radial grooves extending in the tangential direction of the bottom tip, respectively, as disclosed in Japanese Utility Model Publication No. 50-035388. It is molded from synthetic resin into a cylindrical shape. Additionally, an axial through hole is drilled in the bottom of the spinner to communicate the radial grooves with the flow path of the nozzle.

Similarly to the spinner, the nozzle cap is also molded from synthetic resin into a cylindrical shape with a bottom, and an orifice is bored in the center of the bottom of the nozzle cap, facing the recess of the spinner.

In such a configuration, when the trigger is swung, pressurized liquid (pressurized liquid) flows from the flow path in the nozzle, through the axial through hole of the spinner, and through the radial grooves (radial grooves). It flows into the central recess.

Here, since the radial grooves extend in the tangential direction of the four central parts, when the pressurized liquid flows from the radial grooves into the recess, it becomes a vortex, converges at the center of the recess, and then flows out from the opposing orifice.

In addition, without drilling an axial through hole in the spinner, a gap is provided on the inner periphery of the spinner and nozzle to define an annular flow path around the spinner, and the pressurized liquid flows from the nozzle flow path into this annular flow. A configuration in which the water flows into radial grooves via channels is also known (for example, Japanese Patent Publication No. 57-032828).

[Problem to be solved by the invention]

As described above, in the known dispenser spinner, a recess extending in the axial direction and a radial groove extending in the radial direction are provided at the tip of the spinner. In this way, in a configuration in which an axial flow path (recess) and a radial flow path (radial groove) coexist.

The spinner mold is configured with a core pin that moves in the radial direction. Therefore, the structure of the spinner molding and forming mold becomes complicated, and the cost of manufacturing the mold becomes high. Further, the spinner cannot be easily molded, and the spinner cannot be mass-produced at low cost.

Further, the flow path of the nozzle is always in communication with the orifice communicating with the outside air via the radial groove and the recess. Therefore, the trigger may be locked so that it cannot swing (for example,
2-009843), the hinge cover is integrally molded with the nozzle cap, and the orifice is sealed with a plug provided on the hinge cover (for example, Japanese Patent Publication No. 57-0
32828) is known. With such a configuration, the off position (lock position) can be easily set when the dispenser is not in use, and leakage of liquid due to swinging of the trigger can be prevented.

However, even if the trigger is locked, the flow path of the nozzle remains in communication with the outside air through the orifice, so it is not possible to prevent the remaining liquid from leaking out.
This requires a locking means, which complicates the structure of the dispenser, and furthermore, since the locking means is exposed, it is difficult to obtain an aesthetic appearance.

On the other hand, a configuration in which the orifice is sealed by a plug can sufficiently prevent liquid leakage in the off-position.

However, on the other hand, the nozzle cap with the hinge cover and, by extension, the dispenser are structurally complex, cannot be easily molded, and cannot be mass-produced at low cost.

An object of the present invention is to provide a spinner for a dispenser that can be easily molded and does not complicate the structure of the dispenser.

Another object of the present invention is to provide a dispenser with a simple structure that can sufficiently prevent leakage of liquid in the off-position.

[Means to solve the problem]

To achieve this objective, according to the invention, the axial through-hole of the spinner is formed not as a through-hole but as a blind-hole-like channel. In the spinner of the present invention, the radial groove at the tip of the bottom of the spinner, which communicates the axial through hole and the recess, is removed, and the recess directly communicates with the blind hole-like channel at its outer edge. Here, the bottom surface of this recessed portion is formed so as to be able to come into close contact with the central cylindrical portion of the bottom portion of the nozzle cap in which the orifice is formed.

Further, the dispenser of the present invention is constructed by combining the spinner having the above structure with a nozzle cap.

[Effect]

The spinner having the above configuration can be easily molded because it simply has a blind hole-like flow path and a recessed portion, which is a flow path in the axial direction.

Furthermore, if the central cylindrical portion of the nozzle cap 2 is brought into close contact with the bottom surface of the recessed portion of the spinner, communication between the blind hole-like channel and the recessed portion is blocked, and leakage of liquid is easily and sufficiently prevented.

〔Example〕

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

As shown in FIG. 1, a spinner 10 according to the present invention is attached to a trigger type dispenser 12, which is detachably attached to a mouth 16 of a container by a cap 14, and a trigger 18. The swing causes a piston (not shown) linked to the trigger to reciprocate.

The liquid in the container 20 is sucked up into a cylinder (not shown),
It's pressurized. The pressurized liquid (pressurized liquid) is delivered to the dispenser body 2! It reaches the spinner 10 through the flow path 24 of the nozzle 22 attached to the spinner 10 and exits through the orifice 30 of the nozzle cap 28 .

Although the basic structure of the dispenser 12 is well known and will not be described in detail as it is not the purpose of this invention, the dispenser can be used, for example, in USP No. 3,840.15.
It has a known configuration disclosed in No. 7.

As can be clearly seen by looking at FIG. 2 in addition to FIG. 1, the nozzle 22 is held between, for example, the dispenser body 21, and a thread 32 is formed on a part of the outer periphery of the nozzle. Then, the corresponding female thread 33 is connected to the nozzle cap 28.
The nozzle cap is screwed onto the tip of the nozzle 22 by screwing these screws 32 and 33 together.

Further, the spinner 10 interposed between the nozzle 22 and the nozzle cap 28 is molded from synthetic resin into a cylindrical shape with a bottom, as clearly seen in FIG. As can be clearly seen by looking at Figure 3 in addition to Figure 2, each other's 1so'f
A pair of blind hole-shaped channels 34, which are opposite to each other, are bored in the axial direction on the back surface 3B of the bottom of the spinner. In the embodiment, the flow path 34 is formed to have a circular cross section, but the cross-sectional shape, number,
The arrangement is not intended to be consistent with the configuration shown;
As shown in the figure, a circular recess 38 is bored in the center of the bottom tip of the spinner 10, facing the orifice 30.
This recess communicates with the flow path 34 at its outer edge. A skirt-shaped seal piece 4G is formed on the outer periphery of the spinner 10 so as to be able to come into sliding contact with the inner periphery of the nozzle cap 28, thereby ensuring liquid tightness between the spinner and the nozzle cap. Note that reference numeral 41 indicates a circular recess for lightening to prevent sink marks from occurring during injection molding.

The spinner 10 configured as described above has a simple structure in which the blind hole-like flow path 34 on the back side, the recess 41 for thinning, and the recess 38 on the front side all extend in the axial direction, and there is no flow path in the radial direction. It is said that Therefore, the spinner mold is
It can be constructed without having a core bin that moves in the radial direction, the construction is simplified, and the mold can be manufactured at low cost. Further, the spinner 10 can be quickly molded and mass-produced at low cost.

Other components such as the nozzle 22 and the nozzle cap 28 are also
Like the spinner IO, it is molded from synthetic resin.

The nozzle cap 28 is formed into a multi-cylindrical shape having a central cylindrical part 42 in which an orifice 30 is formed, and an intermediate cylindrical part 44 extending backward from the bottom outside the central cylindrical part. A seal piece 40 of the spinner is in sliding contact with the spinner.

In the trigger type dispenser 12 equipped with the spinner lO having the above configuration, when the nozzle cap 28 is rotated and moved rearward, that is, to the right, as the nozzle cap moves, the central cylindrical portion 42 at the bottom of the nozzle cap moves into the spinner. enters into the recess 38, and its tip touches the bottom surface 38 of the recess.
When the central cylinder portion 42 comes into close contact with the bottom surface 38 of the recess (see FIG. 2), communication between the nozzle flow path 24 and the orifice 30 via the blind hole-like flow path 34 is forcibly cut off. . In the configuration in which the central cylindrical portion 42 is in close contact with the bottom surface 39 of the recess and forcibly blocks communication between the nozzle flow path 24 and the orifice 30, the four portions 38 are separated from the nozzle flow path 24 and the blind hole-like flow path 34. Pressurized flow is substantially prevented from entering the orifice 30 through it. Therefore, trigger 1 when not in use
8 is reliably regulated, and liquid leakage is sufficiently prevented. Then, the nozzle passage 24, the blind hole-like flow passage 3
In addition, it is sufficient to simply move the nozzle cap 28 until the central cylindrical portion 42 of the nozzle cap comes into close contact with the bottom surface 39 of the concave portion of the spinner, and the off position of the dispenser 12 is completely prevented. Easy and quick to set up.

Furthermore, the nozzle cap 28 is simplified in structure because it is sufficient to form the central cylindrical portion 42 at the bottom of the nozzle cap in which the orifice 30 is bored, and to make this central cylindrical portion fit closely to the bottom surface 39 of the concave portion of the spinner. , the spinner 10 of the present invention does not complicate the dispenser 12.
Utilizing this provides a dispenser 12 that is structurally significantly simplified compared to known configurations in which the trigger is locked or the orifice is sealed with a plug to set the off position. Further, it can be constructed without providing any members exposed to the outside, and an aesthetic appearance can be easily obtained.

In the illustrated embodiment, the nozzle cap 28 is configured to be movable by rotating, but it may also be configured to be movable by simply sliding it. However, it may also be attached to the dispenser body 21.

When using the dispenser 12, first rotate the nozzle cap 28 from the off position and move it forward, that is, to the left! '+ (front 'a), that is, as shown in FIG. The nozzle cap 28 is moved to the left to such a position that the flow path 24 and orifice 30 of the nozzle are communicated with each other. Here, as shown in FIG. 4, a blind hole-like channel 34.
Recesses 38 communicate with each other at their outer edges. Therefore, when the pressurized flow enters the recess 38 from the nozzle flow path 24 through the blind hole-like flow path 34, the pressurized flow flows into the central cylindrical portion 42. It is turned into a swirl within the gap between the bottom surfaces of the recesses, converged at the center, and then flows out from the orifice 30 as a spray stream.

A portion of the pressurized liquid that has flowed into the recess 38 from the blind hole-like channel 34 flows around the outer periphery of the central cylindrical portion 42 and tends to flow radially outward. However, as shown in FIG. 6, leakage of the pressurized liquid from the gap between the nozzle cap 28 and the spinner 10 is prevented by the seal piece 40 of the spinner.

Note that the recessed portion 38 and the central cylindrical portion 42 are as shown in FIG.

Usually, they are formed in concentric circles, but any shape that promotes swirling of the pressurized flow is sufficient and the shape is not limited to a circle.

Further, when the nozzle cap 29 is further advanced and the bottom part 29 of the nozzle cap is sufficiently separated from the bottom tip of the spinner, the pressurized liquid flows out as a jet. In other words, if the bottom part 28 of the nozzle cap is sufficiently separated from the bottom tip of the spinner, a large gap is set between the central cylinder part 42 and the bottom surface 39 of the recessed part. Therefore, the pressurized flow that has entered the recess 38 from the flow path 24 of the nozzle through the blind hole-like flow path 34 is no longer turned into a vortex, but flows out from the orifice 30 as a jet flow.

In this way, by advancing the nozzle cap 28 from the off position, the spray flow and jet flow can be set continuously.

In addition, if the nozzle cap 2 is sufficiently retreated after the liquid has flowed out so that the central cylindrical portion 42 comes into close contact with the bottom surface 38 of the recess, a large resistance will be generated, making it difficult to move the nozzle cap. In this way, when the nozzle cap 28 is sufficiently retreated and it becomes difficult to retreat further, the off position is set, and switching to the off position is automatically sensed.

As mentioned above, according to the present invention, the nozzle cap 28
By moving, the off position is set, and the spray stream and jet stream can be quickly and easily discharged.

In the embodiment, the spinner IO is attached to a trigger type dispenser 12. However, it goes without saying that the spinner 10 having the above configuration can be attached to dispensers other than trigger type dispensers.
For example, it can be attached to a bush-type dispenser that pressurizes liquid by raising and lowering a piston in conjunction with a button that can be raised and lowered, or to a squeeze-type dispenser that pressurizes liquid by squeezing the container itself. It can also be attached to dispensers that use Freon gas or electric dispensers that pressurize liquid by driving a motor.

Alternatively, a barrier may be provided in front of the orifice 30, and the spray flowing out from the orifice may collide with this barrier to form foam. A former-type dispenser 12 is shown in FIG. 7. In this dispenser 12, the nozzle cap 128 includes an extending cylindrical portion 50 extending forward from the bottom portion 29, and a tapered barrier 52 extends from the extending cylindrical portion. The barrier 52, which is integrally molded with the orifice, is formed so that among the pressurized liquid flowing out from the orifice, the central flow does not collide, but only the peripheral flow collides with it.

Further, an axially extending air intake port 54 is bored through the bottom portion 29 of the nozzle cap radially outward of the central cylinder portion 42 . In the embodiment, as can be clearly seen from FIG. 8, four air intake ports 54 each having a substantially rectangular cross section are provided at equal angles. However, at least one air intake port 54 is sufficient, and the cross-sectional shape, number, arrangement, etc. are not limited to the illustrated configuration.

According to the dispenser 12 equipped with such a nozzle cap 128, the peripheral flow of the pressurized liquid flowing out from the orifice 30 collides with the barrier 52 and is atomized, and the air flowing in through the air intake port 54 and , which mixes with the central flow of the pressurized flow that does not collide with the barrier 52 and is foamed.

As mentioned above, instead of nozzle cap 28, barrier 52
By attaching the nozzle cap 128 having the air intake port 54 to the dispenser 12, a foam type dispenser is obtained.

In this way, in the structure in which the nozzle cap is formed into a multi-cylindrical shape having the intermediate cylinder part 44 that makes sliding contact on the inner surface with the seal piece 40 of the spinner, an air intake hole is formed in the bottom part 29 of the nozzle cap on the radially outer side of the intermediate cylinder part. Even if 54 is provided, the spinner,
The liquid tightness between the nozzle caps is not compromised, so by replacing the nozzle cap 2 with the nozzle cap 128 with the air intake port 54, a foam type dispenser can be easily obtained. Dispensers with excellent compatibility use many common parts, so both regular dispensers and foam-type dispensers can be mass-produced at low cost.

Further, since the air intake port 54 and the barrier 52 of the nozzle cap 12B both extend in the axial direction, the nozzle cap can be easily molded, and the nozzle cap itself can be mass-produced at low cost.

The above-mentioned embodiments are for illustrating the present invention, and are not intended to limit the present invention in the same way, and all modifications and modifications within the technical scope of the present invention are also included in the present invention. Needless to say.

〔Effect of the invention〕

As described above, the spinner of the present invention has a simple structure that does not have a flow path or the like in the radial direction, and the spinner molding die can be configured without having a core pin that moves in the radial direction. Therefore, the spinner molding die is structurally simplified and the cost of manufacturing the die is reduced. Additionally, the spinner can be quickly molded and mass-produced at low cost.

Further, by combining this spinner with a nozzle cap having a central cylindrical portion that can be brought into close contact with the bottom surface of the concave portion of the spinner, a dispenser that can easily set the off position can be obtained. In this dispenser, in the off position, the flow between the outside air and the flow path of the nozzle via the orifice is reliably blocked. Therefore, not only leakage of liquid due to inadvertent rocking of the trigger, but also leakage of liquid remaining in the flow path of the nozzle, etc., is sufficiently prevented.

This dispenser can be formed without complicating the structure by simply moving the nozzle cap in the direction of the spinner. Further, it can be constructed without providing any members exposed to the outside, and an aesthetic appearance can be easily obtained.

Further, according to the dispenser having this configuration, a spray stream or a jet stream can be obtained by moving the nozzle cap back and forth, and the liquid stream pattern can be easily and quickly switched.

Further, in the configuration in which the seal piece of the spinner is brought into sliding contact with the inner surface of the intermediate cylinder portion of the nozzle cap, an air intake port can be formed at the bottom of the nozzle cap without impairing the liquid tightness between the spinner and the nozzle cap.

Therefore, by combining a nozzle cap with a barrier and an air intake port with a spinner, a foam type dispenser can be easily obtained.

Thus, by using the spinner of the present invention, a dispenser with excellent compatibility can be obtained.

In other words, regular dispensers and form-type dispensers can be configured with many parts in common, and can be mass-produced at low cost.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of a trigger type dispenser equipped with a spinner according to the present invention, and FIGS. 2 and 6 are partial longitudinal sections of the trigger type dispenser in the off position and spray flow position. Figures 3 and 4 are a rear view and a front view of the spinner, Figure 5 is a perspective view of the spinner, Figure 7 is a partial vertical sectional view of a dispenser configured in a form type, and Figure 8. 7 is an end view of the nozzle cap taken along line ■-■ in FIG. 7; FIG. 10: Spinner, 12 Nitrigger type dispenser, 18 Nidriger, 20: Container, 21: Dispenser body, 22: Nozzle, 24: Nozzle flow path, 28, 12
82 nozzle cap, 29: bottom of nozzle cap. 30 Niorifice, 34: Spinner blind hole flow path, 38
: Recessed part at tip of spinner, 38: Bottom surface of recessed part, 40: Skirt-shaped seal piece of spinner, 42, 44.50 : Central cylindrical part, intermediate cylindrical part, extended cylindrical part of nozzle-cap, 52: Barrier, 54: Air intake. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8

Claims (4)

[Claims] (1) In a spinner for a dispenser, which is a bottomed cylindrical synthetic resin spinner that is interposed between the nozzle and the nozzle cap at the tip of the dispenser nozzle and turns the pressurized liquid flowing inside the nozzle into a vortex, there is a blind that communicates with the flow path of the nozzle. A hole-like channel is bored in the bottom back surface of the spinner, and a recess is provided at the center of the bottom tip of the spinner, facing the orifice at the bottom of the nozzle cap, and this recess directly communicates with the blind hole-like channel at its outer edge. A spinner for a dispenser, characterized in that the bottom surface of the concave portion is formed so as to be able to come into close contact with a central cylindrical portion of a bottom portion of a nozzle cap in which an orifice is formed. (2) Attach a bottomed cylindrical nozzle cap made of synthetic resin with an orifice in the center of the bottom to the nozzle tip, etc.
A bottomed cylindrical spinner made of synthetic resin is interposed at the tip of the nozzle between the nozzle cap and the nozzle, and the pressurized liquid flowing through the nozzle is turned into a vortex by the spinner and flows out from the orifice. A blind hole-like flow path is provided and communicates with the flow path of the nozzle, and a blind hole-like flow path is formed in the center of the bottom tip of the spinner,
The spinner is characterized by having a molded spinner that directly communicates with the blind hole-like channel at its outer edge and has a concave portion whose bottom surface can be tightly fitted to the central cylindrical portion of the nozzle cap in which the orifice is formed. dispenser. (3) Attach a bottomed cylindrical nozzle cap made of synthetic resin with an orifice in the center of the bottom to the nozzle tip, etc.
In dispensers, a spinner in the shape of a cylinder with a bottom made of synthetic resin is interposed at the tip of the nozzle, between the nozzle cap and the nozzle, and the pressurized liquid flowing through the nozzle is turned into a vortex by the spinner and flows out from the orifice. It is formed into a multi-cylindrical shape with a perforated central cylinder part and an intermediate cylinder part that extends outward from the central cylinder part from the bottom toward the back. a central recess formed at the tip of the bottom of the spinner, the outer edge of which communicates directly with the blind hole-like flow path, and whose bottom surface can be brought into close contact with the central cylindrical portion of the nozzle cap, and the outer surface of the spinner. What is claimed is: 1. A dispenser characterized in that the dispenser is molded and includes a skirt-like seal piece that is installed in the nozzle cap and that slides into contact with the inner periphery of the intermediate cylindrical portion of the nozzle cap. (4) Attach a bottomed cylindrical nozzle cap made of synthetic resin with an orifice in the center of the bottom to the nozzle tip, etc.
In dispensers, a spinner in the shape of a cylinder with a bottom made of synthetic resin is interposed at the tip of the nozzle, between the nozzle cap and the nozzle, and the pressurized liquid flowing through the nozzle is turned into a vortex by the spinner and flows out from the orifice. It is formed into a multi-cylindrical shape with a central cylinder part that is perforated and an intermediate cylinder part that extends from the bottom toward the back outside of the central cylinder part, and the air intake that extends in the axial direction is connected to the radius of the central cylinder part. A tapered barrier is provided in the nozzle cap in front of the orifice, which is bored through the bottom of the nozzle cap outward in the direction, and with which the peripheral flow of the pressurized liquid flowing out from the orifice collides; The spinner has a blind hole-like flow path bored at the back of the bottom of the spinner and communicating with the flow path of the nozzle, and a blind hole-like flow path formed at the bottom tip of the spinner, which directly communicates with the blind hole-like flow path at its outer edge, and whose bottom surface communicates with the nozzle flow path. A foam type dispenser characterized in that it is molded with a central recess that can fit tightly into the central cylindrical part of the cap, and a skirt-like seal piece that is provided on the outer surface of the spinner and slides into contact with the inner surface of the intermediate cylindrical part of the nozzle cap. .