JP2002037301A - Trigger type liquid injector with turnable nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely select the injecting direction of an injection nozzle provided on a tip of a cylindrical piston in a trigger type injector. SOLUTION: In this trigger type injector, a pressure cylinder 7 of a pouring pump is fitted to a cylindrical fitting body 2 screwed to a neck part 1a of a hollow container 1 storing the liquid in an attachable/detachable manner, an upper end part of the cylindrical piston 4 of the pressure cylinder is projected from an upper opening part of the fitting body 2, one end of an operation lever 6 is coupled with a supporting piece 3 of the operation lever 6 projected from a top wall 2b of the cylindrical fitting body 2 in an oscillating manner, and a projection part of the cylindrical piston 4 is engaged with an edge of a through hole 6a in the operation lever 6 to allow the cylindrical piston to slide in the vertical direction. In addition, the injection nozzle 5 is turnably fitted to a tip part of the cylindrical piston 4 in a liquid-tight manner to form the trigger type liquid injector capable of injecting the liquid in a free direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trigger type liquid ejecting apparatus which uses a liquid contained in a hollow container by spraying the liquid in a mist or water droplet form from a jet nozzle by pressurizing the liquid in the container. In particular, the ejection head portion projecting upward from the mounting base of the ejection device fitted to the mouth and neck of the hollow container penetrates vertically through the central portion of the trigger for performing a pressurizing operation on the liquid in the container. The present invention relates to a trigger type liquid ejecting apparatus which is provided with an ejecting nozzle which is extended and turned at the tip of the ejecting head section.

[0002]

2. Description of the Related Art Conventionally, shampoos and other cosmetic solutions and liquid detergents contained in hollow containers, or insecticides and other various solutions are automatically discharged from the containers and used as liquid discharge containers. The ones used are:
As seen in Japanese Utility Model Publication No. 41-18864 and Japanese Patent Publication No. 46-23838, the content liquid is ejected and ejected by the pressure of the pressurized gas sealed together with the content liquid in the hollow container. So-called aerosol containers have been widely used.

However, such an aerosol container using a pressurized gas can be sprayed with one hand and the direction of the spray nozzle can be freely changed, which seems to be convenient for use. Propane gas or chlorofluorocarbon gas, which is easy to handle at room temperature, is used as the pressurized gas.There is a danger that the sprayed contents may catch fire depending on the use condition of the aerosol container. There is still pressurized gas in the container, and if such a container is disposed of with other debris, it may cause an explosion, create ozone holes, or cause other air pollution. And it has come to be viewed as a social problem in various ways.

Therefore, instead of the aerosol container as described above, a dispensing container having a structure capable of dispensing various liquids contained in a hollow container without using a pressurized gas has been proposed.
A liquid dispensing container as disclosed in Japanese Utility Model Laid-Open Publication No. 52-65923 and Japanese Utility Model Publication No. 63-13810 has been devised and used. These liquid dispensing containers are molded using a soft synthetic resin, and the body wall of the container body can be easily compressed and deformed, and a hollow molded so that it can easily be elastically restored to its original shape. The container contains cosmetics and other contents.To pour out and use the contents, hold the container body in hand and press strongly on the body wall to deform it. It is formed so that the content liquid can be discharged to the outside by increasing the pressure and the direction of the injection nozzle can be freely adjusted.

[0005] The container formed as described above has a simple structure and can be manufactured at low cost without any trouble. However, the container wall is compressed and deformed by hand force. In order to pour it out, it must be rapidly compressed and deformed in a single operation, and it requires a certain amount of grip force, so it is poured out as desired for infants, elderly people, sick people etc. with weak hand power It may not be possible. Therefore, it is not necessary to use such a strong gripping force to pressurize the inside of the container in order to pour out the content liquid, and it is not necessary to use a pressurized gas that is socially problematic. By using a manual pouring pump that can easily increase the pressure in the container with only a small hand, the liquid in the container can be easily poured out. 61-47
No. 61 and Japanese Utility Model Publication No. 63-2119 have been proposed by the applicant.

As shown in FIG. 5, a general construction of a liquid discharge container using these discharge pumps is a discharge container connected to an injection head screwed to the mouth and neck of a hollow container body. The pump is provided with a pouring device including a vertical reciprocating pump in which the piston of the pump is reciprocated up and down manually and pressurized. The basic structure thereof is as follows. A large-diameter cylinder 53 and a small-diameter tubular piston 5 constituting a pouring pump are mounted on a mounting member 52 having a lid screwed onto the mouth and neck of the container body.
And an annular piston 55 having a sliding member 55a is slidably provided in a large-diameter cylinder 53, and a piston core forming a pressurizing chamber A is provided at the tip of the cylinder 53. A bar 56 and a check valve 57 are provided, and a compression spring 58 is provided between the distal end of the core bar 56 and the annular piston 55 to urge the tubular piston 54 movably held up and down. In addition, a suction pipe 55 is connected to the bottom of the cylinder 53, and an injection head 60 having a discharge valve 59 is fitted and fixed to the upper end of the tubular piston 54, so that a reciprocating injection valve is provided. A hollow container provided with an outlet pump is formed.

In the spout container provided with the spout pump formed as described above, the inside of the pressurizing chamber A is pressurized as the piston 55 descends by lightly pressing the pressing portion of the ejection head 60 with a fingertip. The liquid pushed out into the tubular piston 54 pushes and opens the discharge valve 58 to be discharged from the opening of the discharge nozzle 61 to the outside, and the direction of the nozzle of the ejection head 60 can be freely changed. And the pouring container provided with such a pouring pump can easily pour out the liquid in the container only by pushing the pressing portion of the nozzle with a small force to move the piston up and down, The structure is simple and inexpensive to manufacture, but in actual dispensing, place the container with the liquid on a suitable surface or hold it in one hand, It is necessary to perform a pouring operation to press the head portion downward with the hand of the user, and it is undeniable that some inconvenience is felt.

[0008] In order to solve the above-mentioned inconveniences, the pressurizing operation for reciprocating the pressurizing piston of the pouring pump for pouring out the solution in the container can be easily performed.
Various types of pouring devices have been proposed in which a piston can be reciprocated by a fingertip while holding a container with one hand. In such a situation, the hollow container provided with the discharge pump is gripped with one hand, and the piston of the discharge pump is reciprocated by pressing the lever with the fingertip to pressurize the so-called trigger type injection. The applicant has proposed an apparatus described in Japanese Utility Model Publication No. 60-26853 or Japanese Patent Publication No. 61-141, which is referred to as an output apparatus. These trigger-type dispensers can be pressurized by simply pulling or releasing the pistol-shaped operating lever with the fingertips of the piston of the dispensing pump attached to the mouth and neck of the hollow container. It is configured as follows.

[0009] As shown in FIG. 4, the conventional trigger-type dispensing apparatus described above has a mouth-neck portion 41 a of a container body 41.
A cylindrical mounting which also serves as a lid mounted with an injection pump formed by connecting a piston member 44 and a jet head 47 slidably fitted to a large-diameter pressurizing cylinder 43 in an inverted L-shape. A member 42 is screwed on, and a base cylinder portion 47a of an ejection head 47 integrally formed with an ejection nozzle 45 and a lever 46 is fitted on an upper portion of the mounting member to form an ejection device. Operation, the base cylinder portion 47 of the ejection head 47
By moving the piston member 44 up and down through a, the inside of the cylinder 43 can be pressurized and poured out. By operating the lever 46, the piston member 44 is depressed to increase the pressure in the pressurizing chamber in the cylinder 43, and at the same time, the discharge valve is lowered as the base cylinder portion 47a descends. 47b is opened and the solution in the cylinder is extruded and ejected from the nozzle hole 47c. Also, as the piston 43 rises, the discharge valve 47b is closed, and at the same time, the suction valve 48 is opened and the cylinder through the suction pipe 49 is opened. The solution in the container is sucked into the inside.

[0010] The liquid dispensing device formed in such a structure can hold the hollow container accommodating the solution with one hand and lightly pull the trigger lever with the tip of a forefinger. Reciprocates to pressurize the inside of the container, and the solution in the container can be ejected from the nozzle together with the pressurized gas. However, in the trigger type dispensing device having the above structure, the piston member 4
When the operating lever 46 is pulled to move the lever 4 up and down, the ejecting head 47 integrated with the lever makes a large swinging motion with the rear end B of the trigger as a fulcrum, and the base cylinder of the ejecting head 47 By moving the portion 47a downward, a force is applied so that the piston member 44 can be pressed down. Therefore, every time the lever is pulled and the piston member 44 is moved up and down, the ejection head 47 is moved vertically. Because of the swinging motion and receiving the mechanical unreasonable force, the tip nozzle part is repeatedly subjected to deformation stress,
At the same time as the deformation, the components constituting the nozzle portion may be deformed or fall off due to the injection pressure.

Further, in the pouring device configured as described above, the ejection head is formed so as to be integrated with the trigger mechanism, so that the direction of the nozzle of the ejection head and the operating direction of the lever are the same. As a result, the direction of the injection nozzle is fixed, and it is impossible to change the injection direction by freely turning only the tip of the nozzle. Therefore, in the case of a container containing a hairdressing agent or a hair restorer using such a conventional trigger-type dispensing device, when using the container on one's own head, hold the container in the usual manner. Pulling the control lever with the index finger or middle finger is a cramped operation, so you have to change the way you hold the container and then operate it like pulling the control lever with your thumb to eject it to the head, which is somewhat cumbersome. It has to be an operation.

In view of the above, the problems in the trigger type dispensing apparatus as described above are further improved, and when the operation lever of the trigger is pulled, the ejection head portion largely swings as described above. In order to prevent the swinging motion in the up and down direction, the structure that does not increase the swing radius of the trigger, so that the piston member of the pouring pump can be reciprocated up and down by operating the lever For example, Japanese Unexamined Utility Model Publication No. 1-25622 and Japanese Unexamined Utility Model Publication No. 4-46843 have proposed a dispensing device.

In the infusion device of the invention disclosed in the above publication, the injection cylinder portion and the plunger are provided sideways in the same direction, and the position of the fulcrum for swinging and supporting the trigger portion is extremely short.
Alternatively, the trigger support point is omitted so that no downward force is applied to the injection cylinder when pulling the trigger lever. Deformation stress applied to the injection cylinder and the injection nozzle due to the movement can be reduced, but it is impossible to completely eliminate it, and the structure of these pouring devices becomes somewhat complicated, It also takes time to assemble it.

Therefore, as a trigger-type dispensing device obtained by further improving these devices, Japanese Patent Publication No. 62-42667 has been proposed.
As described in Japanese Unexamined Patent Publication (Kokai) No. Hei. 4-153316, an injection cylinder is projected horizontally from a cylindrical gripping part fitted on a lid screwed onto the mouth and neck of a container containing a liquid. In addition, there is an apparatus in which a trigger is provided at a lower portion of the injection cylinder section. In the pouring device having the above-described structure, the fulcrum for swinging and supporting the trigger portion is provided on the lower surface of the injection cylinder, and the movement of the piston member due to the swinging operation of the trigger presses obliquely upward of the injection cylinder portion. As a result, an excessive force such as pressing down the injection cylinder portion downward unlike the conventional trigger does not act.

However, in each of the pouring devices configured as described above, the ejection head unit and the trigger unit are integrated so that the direction of the nozzle of the ejection head and the operation direction of the lever are the same. With such a configuration, the direction of the nozzle is fixed, so that it is impossible to change the injection direction by freely turning the tip of the nozzle. Since the structure of the injection head portion is much more complicated than that of the related art, it is necessary to manufacture an injection molding die and perform an injection molding operation in order to form such a structure. In addition, it requires a high level of technology and requires careful attention and time and labor to assemble the product, which also increases the production cost.

[0016]

Various trigger-type dispensers generally used in the past have been formed such that the ejection head and the lever and plunger of the trigger are integrated. Since the nozzle at the tip of the injection head has a fixed structure, it is not possible to freely turn the direction of the nozzle in the direction you want to spray, especially when using a deformed liquid hollow container other than a cylinder. It is inconvenient to determine the injection direction for
Since the injection head has a complicated structure, it takes time and effort to form and assemble parts, which causes a problem such as an increase in manufacturing cost.

Therefore, the present invention is formed into a structure that incorporates the advantages of the conventional vertical reciprocating dispensing pump and the trigger dispensing pump, and the injection of the trigger dispensing device is performed. By forming the head portion and the trigger portion in separate structures and in a structure that is easy to mold and assemble, the direction of the nozzle of the ejection head portion can be freely turned and the ejection direction can be freely selected. It is an object of the present invention to provide a trigger-type dispensing device which can be formed and further manufactured at a low cost with a structure having high productivity.

[0018]

A support piece for swingably supporting an operation lever of a trigger is provided on a tubular mounting body which also serves as a lid which can be detachably screwed to a mouth and neck of a hollow container for storing a liquid. It is provided so as to protrude, and a pressurizing cylinder portion of a pouring pump is fitted and provided inside the mounting body, and a cylindrical piston serving as a movable cylinder projects from an upper opening of the mounting body at an upper end thereof. So as to form the main body of the dispensing container, and insert the upper end of the cylindrical piston into a through hole provided at the center of the operation lever of the trigger so as to protrude therefrom, so that the cylindrical mounting is performed. An operating lever of the trigger is swingably coupled to the support piece of the trigger of the body, and the operating lever is formed so that the cylindrical piston can be pressed so as to constitute a trigger mechanism. Top edge of Fitted an injection nozzle to be deflected,
A trigger type liquid dispensing container that can easily eject a deformable container other than a cylinder in a free direction is configured.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A large-diameter cylinder forming a pressurizing cylinder portion of a pouring pump is provided inside a tubular mounting body which also serves as a lid detachably fitted to the mouth and neck of a container for accommodating a liquid. The liquid injection is carried out by vertically suspending and providing the upper end of a small-diameter cylindrical piston forming an injection path slidably fitted inside the large-diameter cylinder from the upper end opening of the holding cylinder of the mounting body. By constructing a discharge pump, the pressurizing cylinder part of the liquid discharge pump is hung down inside a hollow container containing liquid, and the cylindrical holder is detachably fitted to the mouth and neck of the container. Form the liquid dispensing container body.

The rear end of the operation lever of the trigger is connected to a trigger support piece protruding from the top wall of the tubular mounting body of the liquid discharging container body, and upward from the upper end opening of the holding cylinder of the mounting body. Insert the protruding cylindrical piston into the through hole provided in the center of the operation lever so that it protrudes slidably,
The operation lever is formed so as to be able to swing up and down with the connecting portion as a fulcrum, and the operation lever is formed to slide the cylindrical piston to constitute a trigger mechanism. A trigger type liquid dispensing container in which an injection nozzle is rotatable and fitted in a liquid-tight manner at the tip of the cylindrical piston protruding from the cylindrical piston.

In the liquid dispensing container constructed as described above, the cylindrical piston is pushed down by holding the cylindrical threaded portion of the cylindrical mounting body in the hand and then hooking the tip of the middle finger on the operating lever to pull it down. The inside of the large-diameter pressurized cylinder vertically suspended in the mouth and neck of the container is pressurized, and the solution stored in the pressurized chamber is pushed out to the ejection path formed in the upper cylindrical piston, The fuel is injected from the injection nozzle at the tip of the piston to the outside. At this time, the direction of the nozzle can be freely changed in the direction in which the injection is desired.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a trigger type liquid dispensing apparatus according to the present invention. In the present invention, as shown in FIG. 1, a fitting cylindrical portion 2 a of a cylindrical mounting body 2 serving as a lid is screwed to a mouth and neck of a container body 1, and a top wall portion of the mounting body is provided. 2b
The rear end portion of the operation lever 6 is rotatably connected to the trigger support piece 3 protruding from the main body so as to be swingable in the vertical direction to constitute a trigger mechanism. A cylindrical piston 4 which is a movable cylinder protruding from the support cylinder 2c provided is inserted into a through hole 6a formed in a central portion of the operation lever 6 to protrude upward so as to be slidable. The liquid injection container includes a trigger-type liquid injection device in which the injection nozzle is rotatably fitted to and fixed to the distal end of the piston 4 in a liquid-tight manner.

The main part of the present invention is, as shown in FIG. 2, an inner surface for screwing a cylindrical mounting body 2 serving also as a lid screwed onto the mouth and neck 1a of the container body 1 into the mouth and neck 1a. And a small-diameter cylindrical piston 4 of an injection pump
And a supporting cylindrical portion 2c for holding a trigger is formed by connecting with a top wall portion 2b formed in a flange shape, and a trigger support piece 3 for connecting an operation lever 6 of a trigger to the top wall portion 2b is projected. Formed. A piston core rod 8 is provided inside a large-diameter pressurized cylinder 7 provided with a flange 7a which is provided on the outer peripheral surface of the container body 1 so as to engage with an end of the mouth-neck portion 1a.
A check valve 10 is provided, and a cylindrical piston 4 having an annular piston 4a fitted to the lower end thereof is slidably provided on the mandrel 8 such that the upper end protrudes from the large-diameter cylinder 7. At the same time, a spiral compression spring 9 is provided between the annular piston 4a and the lower end support piece 8a of the piston core rod 8.
Are pressurized to form a pressure pump. The pressurized pump thus configured is fitted inside the tubular mounting body 2 to form a pouring pump main body.

Subsequently, a through hole 6a is formed in the center portion, and the operating lever 6 of the trigger, which is formed in a substantially U-shaped or arcuate shape, is connected to the through hole 6a provided in the center portion.
And the rear end of the operating lever is rotatably connected to the end of the trigger support piece 3 protruding from the top wall 2b of the tubular mounting body 2 so as to be rotatable. The locking portion 4b protruding from the outer peripheral surface of the cylindrical piston 4 is configured to be locked on the peripheral portion of the through hole 6a and slid up and down by the swinging motion of the lever. The injection nozzle 5 which is rotatable by fitting an engagement recess 5c of the injection nozzle 5 into an engagement protrusion 4c formed by providing an undercut at the upper end of the cylindrical piston 4 protruding upward from the through hole 6a. Trigger type liquid dispensing device having the above configuration.

The liquid injection device constructed as described above is mounted in a state in which a large-diameter pressurized cylinder is hung in the mouth and neck of the hollow container 1 containing liquid, and the cylindrical mounting body is mounted. 2 by screwing the cylindrical portion 2a to the outer peripheral surface of the mouth-neck portion 1a, thereby fixing the flange portion 7a of the large-diameter pressurized cylinder closely to the opening end surface of the container mouth-neck portion 1a. A liquid hollow container with a liquid dispensing device of the type is formed.

In the trigger type liquid dispensing container constructed as described above, the cylindrical portion 2a of the tubular mounting body 2 screwed to the mouth and neck portion 1a of the container is grasped in the hand, and the fingertip of the forefinger is held. When the operating lever 6 is pulled after being hooked on the operating lever 6 of the trigger, the operating lever 6 descends so as to pivot downward about the fulcrum B, and as shown in FIG. Since the edge of the hole 6a is locked by the pin-shaped locking portion 4b protruding from the side wall of the cylindrical piston 4, when the lever is further pulled, the cylindrical piston 4 is pushed down and the inside of the cylinder is pressurized. Is done. At this time,
Since the through-hole 6a is formed in the curved center portion of the operation lever 6 with a diameter having a margin, the lever 6 that swings around the fulcrum B does not bend the cylindrical piston 4 substantially. Since it is possible to descend straight, the injection nozzle 5 provided at the tip of the cylindrical piston 4 does not swing.

In this way, the small-diameter cylindrical piston 4 is pushed down into the large-diameter pressurizing cylinder 7, and the annular elastic piston 4 a engaged with the distal end thereof is pressed against the compression spring 9 by the pressurizing cylinder 7. When it slides and descends in 7, the volume in the pressurizing cylinder is compressed, the check valve 10 is closed, and the pressure is increased. When the high-pressure gas is pushed to the discharge path 4d through a gap formed between the annular piston 4a and the piston core rod 8, the discharge valve 5a of the injection nozzle 5 is expanded. It is discharged from the nozzle port 5b to the outside of the container.

When the fingertip is released from the operation lever 6 of the trigger, the compression spring 9 pushes up the annular piston 4a made of an elastic material in order to return to the original state. The check valve 10 opens and the solution in the container is sucked into the cylinder. Subsequently, when the operating lever 6 is pulled again, the cylindrical piston 4 is pushed down into the pressurizing cylinder 7, and the check valve 10 is closed to increase the pressure in the cylinder. Is pushed out to the ejection path 4d, the ejection valve 5a is opened, and the ejection is performed from the nozzle port 5b of the ejection nozzle 5 with vigor.

In the above-described embodiment, an injection nozzle 5 is provided to be able to turn around the tip of a cylindrical piston 4 projecting upward from a support cylinder 2c of a cylindrical mounting body 2 mounted on a hollow container containing a liquid. Although the fitting recess 4c of the injection nozzle 5 is fitted to the fitting projection 4c provided with an undercut on the peripheral wall of the cylindrical piston 4, the present invention provides a troublesome undercut. Instead of the fitting projection 4c, as shown in FIG. 3B, one or a plurality of ridges 4d are formed on the peripheral wall of the distal end of the cylindrical piston 4 in an annular shape, and the annular ridge is formed. The injection nozzle 5 having the annular groove 5d corresponding to the portion 4d can be fitted in a liquid-tight manner to be free to turn, and the cylindrical piston 4 and the injection nozzle 5 can be fitted by the uneven portion. It is also possible to reverse the form.

In order to slide the cylindrical piston 4 by the operating lever 6, as shown in FIG. 3 (b), the cylindrical piston 4 is curved to be engaged with a pin 4b projecting from the outer peripheral surface of the cylindrical piston 4. If the operating lever 6 is provided with an engaging portion 6b having an engaging surface, the cylindrical piston 4 can be slid in a stable state, but an annular engaging portion as shown in FIG. Even if the side wall 4e is provided on the side wall of the cylindrical piston 4, the annular engaging portion 4 is formed on the edge of the through hole 6a of the operation lever 6.
Since e is locked, it is possible to push down the cylindrical piston 4 by pulling the operation lever 6.

As described above, the trigger type liquid dispensing apparatus according to the present invention comprises a cylindrical mounting member 2 mounted on a hollow container.
Of the cylindrical piston 4 protruding from the supporting cylindrical portion 2c and forming an injection path, the injection nozzle 5 is provided so as to be able to turn freely, so that the opening of the nozzle is directed in the direction in which injection is desired with a fingertip. The direction in which the liquid ejected from the container is ejected can be easily and freely selected.

Further, a through hole 6a is formed in the center of the operation lever 6 of the trigger which is formed by bending the operation lever 6 into a substantially U-shape or bow shape. The rear end of the operating lever is swingably connected to the end of the trigger support piece 3 protruding from the top wall 2b of the tubular mounting body 2 by inserting a cylindrical piston 4 projecting vertically upward. As a result, the cylindrical piston 4 forming the injection path is formed so as to slide up and down in accordance with the swing of the operation lever 6 of the trigger. Since the operating lever 6 swings so that the through hole 6a moves almost directly below, the operating lever 6 does not come into contact with the cylindrical piston 4 and bend.
The injection nozzle 5 at the tip of the piston 4 does not swing.

[0033]

According to the present invention, there is provided a trigger type liquid dispensing apparatus which does not have a structure in which an operation lever of a trigger and a cylindrical piston portion forming an injection path are integrally formed as in the related art. Since these are configured separately, and the operation lever is configured so that the through-hole that locks to the cylindrical piston formed in the center of the operation lever descends almost straight when the lever swings, In addition, the injection nozzle provided at the tip of the piston does not swing. And since the injection nozzle provided at the tip of the piston is freely turned, the direction in which the liquid is jetted can be easily and freely selected. Even when using it, it is easy to use because it is only necessary to change the direction of the spray nozzle, and even in a place where it is difficult to spray with the conventional trigger type pour container, Any hollow container having a deformed structure or a slightly large structure other than a cylindrical container can be easily ejected in a required injection direction.

[Brief description of the drawings]

FIG. 1 is a perspective view of a liquid ejection container to which an ejection head according to the present invention is mounted.

FIG. 2 is a cross-sectional view of a trigger type liquid discharging container provided with the ejection head of the present invention.

FIG. 3 is a partial sectional view showing a locking relationship between an operation lever and a cylindrical piston according to the present invention and an injection nozzle.

FIG. 4 is a partial cross-sectional view showing a related art of a trigger type liquid dispensing container.

FIG. 5 is a partial cross-sectional view showing a conventional liquid ejection device in which an ejection head can turn.

[Explanation of symbols]

 1. Container body 1a. Mouth and neck 2. Tubular mounting body 2a. Fitting cylindrical part 2b. Top wall 2c. Support tube 3. Trigger support piece 4. Cylindrical piston 4a. Annular piston 4b. Locking projection 4c. Fitting projection 4d. Spouting channel 5. Injection nozzle 5a. Discharge valve 5b. Nozzle opening 5c. Fitting recess 6. Operation lever 6a. Through hole 7. Pressurizing cylinder 7a. Flange part 8. Piston core rod 8a. Lower end support piece 9. Compression spring 10. Check valve

Continued on front page F term (reference) 3E084 AA06 AA12 AA24 AB01 BA02 CB02 DA01 DB12 DC03 FB01 GA04 GB04 GB17 HB01 HC03 HD01 KB01 LB02 LB07 LC01 LC10 LD22 LD26

Claims (8)

[Claims] 1. A trigger type liquid dispensing apparatus mounted on a mouth and neck of a container body so as to perform dispensing by pressing a pressurizing cylinder of a dispensing pump provided in a hollow container. The upper end of the cylindrical piston slidably provided in the cylinder is projected upward through the center of the operation lever of the trigger, and the injection nozzle is fitted to the tip of the cylindrical piston so as to be freely turned. A trigger type liquid ejecting device, wherein a nozzle can be turned. 2. A large-diameter pressure cylinder is fitted and fixed to a cylindrical mounting body also serving as a lid fitted to the mouth and neck of the container body, and is slidably fitted to the pressure cylinder. One end of a small-diameter cylindrical piston is protruded to form an injection pump, and the operation lever of a trigger having a through-hole formed in the center portion is inserted through the cylindrical piston, and is inserted into the top wall of the mounting body. Connected rotatably to the tip of the provided trigger support piece,
The cylindrical piston is formed so as to be slidable for swinging operation of an operating lever, and a liquid ejection device is formed by fitting an injection nozzle to the upper end of the cylindrical piston so as to be able to turn. Trigger type liquid ejecting device that can turn turning nozzle. 3. A fitting cylindrical portion fitted to the mouth and neck of the container, a top wall portion connected to the cylindrical portion and having an inward flange shape, and a support cylinder protruding from the center of the top wall. A trigger support piece protrudes from the top wall portion of the cylindrical mounting body to form a cylindrical mounting body also serving as a lid, and the pressurizing cylinder having a large diameter of the support cylinder is fitted therein. An injection pump is formed by projecting an upper end portion of a small-diameter cylindrical piston slidably fitted into a cylinder from the support cylinder, and the injection pump is formed in a through hole provided in a central portion of an operation lever of a trigger. The cylindrical piston is inserted and projected, and one end of the operating lever is swingably connected to an end of the trigger support piece so that the cylindrical piston is slid by the swinging operation of the operating lever. And the cylindrical piston protruding above the operation lever. A trigger type liquid injecting device configured by fitting a jet nozzle to a tip of the container so as to be able to turn freely, is formed so as to be capable of injecting the liquid by being fitted to the mouth and neck of a hollow container containing the liquid. A trigger-type liquid ejecting device that can turn the nozzle. 4. The trigger type liquid ejecting apparatus according to claim 1, wherein the cylindrical piston is operated on a peripheral wall surface below an operating lever protruding from the cylindrical mounting body. 4. The locking device according to claim 1, further comprising a locking portion for locking the through hole of the lever, wherein the locking portion slides in accordance with the swinging operation of the operation lever.
2. A trigger type liquid ejecting apparatus according to claim 1, wherein the nozzle is capable of turning. 5. The nozzle according to claim 4, wherein the locking portion provided on the projecting peripheral wall surface of the cylindrical piston is formed by a short rod-shaped projection on the cylindrical surface. Trigger type liquid ejector. 6. The nozzle according to claim 4, wherein the locking portion provided on the peripheral wall surface of the cylindrical piston protruding is formed by an annular projection on the cylindrical surface. Trigger type liquid ejection device. 7. The injection nozzle according to claim 1, wherein an annular engagement projection or an engagement groove provided at a distal end of a cylindrical piston projecting vertically from the cylindrical mounting body is provided at a base of the injection nozzle. 4. The trigger-type liquid ejecting apparatus according to claim 1, wherein said trigger-type liquid ejecting apparatus is capable of turning by fitting into a concave groove or an engaging projection. 8. The injection nozzle is characterized in that it is bent in an L-shape to a tip of a cylindrical piston projecting perpendicularly from the cylindrical mounting body, and is formed so as to be free to turn. A trigger type liquid ejecting apparatus according to claim 7, wherein the nozzle is capable of turning.