JP2020111353A - Trigger sprayer - Google Patents

Abstract

To diversify the design of a cover which covers a pump mechanism, and limit deformation to a minimum against a vertical load while reducing the amount of a used resin material.SOLUTION: A resin cover 40 provided to cover a pump mechanism comprises: first and second columnar parts 43, 44 arranged with a gap from each other in the oscillation direction of a trigger 20 so as to extend in a vertical direction; and a connection part 46 that connects the upper ends of the first and second columnar parts 43, 44 together.SELECTED DRAWING: Figure 1

Description

The present invention relates to a trigger type ejector that ejects liquid in a container by operating a trigger, and particularly belongs to the technical field of a structure including a cover that covers a pump mechanism.

Conventionally, this type of trigger-type ejector has been used by being attached to, for example, a container containing a detergent or a deodorant, and operating a pump mechanism for sucking and discharging the liquid in the container and the pump mechanism. And a nozzle communicating with the discharge hole of the pump mechanism. When the user holds the container and operates the trigger, the pump mechanism sucks the liquid in the container and discharges it from the discharge hole, and the liquid discharged from the discharge hole is ejected in the form of mist or foam from the nozzle. ..

The trigger type ejector disclosed in Patent Document 1 is provided with a cover formed so as to cover the pump mechanism, and this cover does not have a through hole or the like. It can be hidden.

Further, a cover is also attached to the trigger type ejector disclosed in Patent Document 2. A through hole is formed in the side wall of the cover of Patent Document 2.

Special table 2013-533098 gazette JP, 2018-43778, A

By the way, since the through hole and the like are not formed in the cover of the trigger type ejector of Patent Document 1, the entire pump mechanism can be covered up, but the variety of designs is poor and the amount of resin material used is large. turn into. Therefore, it is conceivable to form a through hole in the side wall in order to differentiate the appearance and reduce the amount of the resin material used as in the cover of Patent Document 2.

However, when the through hole is formed in the side wall of the cover, the strength of the cover is reduced, and there is a possibility that the cover is easily deformed particularly in the vertical direction. Since the pump mechanism is provided inside the cover, it is conceivable that if the cover is deformed, an unreasonable force acts on the pump mechanism, causing a failure.

The present invention has been made in view of the above points, and an object of the present invention is to diversify the design of the cover that covers the pump mechanism and reduce the load in the vertical direction while reducing the amount of resin material used. It is to be able to minimize the deformation of the cover with respect to.

In order to achieve the above object, in the present invention, at least two columnar portions extending in the vertical direction are provided, and the upper ends of these columnar portions are connected to each other to secure the strength.

A first aspect of the present invention is a trigger-type ejector that is attached to a container that stores a liquid and that ejects the liquid, and a pump mechanism that sucks the liquid contained in the container, and a swingable device that operates the pump mechanism. A trigger, a nozzle communicating with a discharge hole of the pump mechanism, for ejecting the liquid discharged from the discharge hole to the outside, and a resin cover provided so as to cover the pump mechanism, The cover has a first columnar portion and a second columnar portion which are arranged at intervals in the swinging direction of the trigger and extend in the up-down direction, an upper end portion of the first columnar portion and an upper end portion of the second columnar portion. It is characterized in that a connecting part for connecting the parts is provided.

With this configuration, when the user swings the trigger, the pump mechanism is operated and the liquid contained in the container is sucked into the pump mechanism. The liquid sucked into the pump mechanism is ejected from the nozzle through the ejection hole.

Since the first columnar section and the second columnar section are arranged at intervals in the swinging direction of the trigger on the cover that covers the pump mechanism, there is a space between the first columnar section and the second columnar section. Is formed, and this space brings variety to the design of the cover, and contributes to reduction of the amount of resin material constituting the cover.

Further, since the first columnar portion and the second columnar portion of the cover are provided so as to extend in the vertical direction, when the load is applied to the cover from above, for example, the first columnar portion and the second columnar portion are provided. To support the load. At this time, since the upper ends of the first columnar portion and the second columnar portion are connected to each other by the connecting portion, it is difficult for the first columnar portion and the second columnar portion to be deformed so as to widen the space, and thus the cover is deformed. The quantity is reduced.

A second aspect of the invention is characterized in that the first columnar portion and the second columnar portion are formed so as to come closer to each other as they approach the upper end portion.

According to this configuration, since the upper ends of the first columnar portion and the second columnar portion approach each other, the length of the connecting portion can be shortened.

A third aspect of the invention is characterized in that a dimension of the trigger in the swing direction of the first columnar portion is set so as to be closer to a lower end portion as the dimension is longer.

According to this structure, the dimension of the lower end portion of the first columnar section becomes long, so that the strength of the root portion of the first columnar section is sufficiently increased.

In a fourth aspect of the invention, the first columnar portion is arranged before the second columnar portion, and the second columnar portion is arranged after the pump mechanism when the side on which the liquid is ejected is the front side. It is characterized in that it is formed thinner than the first columnar portion.

According to this configuration, the second columnar portion is arranged after the pump mechanism, so that the second columnar portion can be made thinner than the first columnar portion arranged in the portion where the pump mechanism is located. By making the second columnar part thinner, the back side of the cover becomes thinner, resulting in a smart design.

A fifth aspect of the present invention is characterized in that the second columnar portion is formed with a groove portion extending vertically.

According to this configuration, the relatively thin second columnar portion is reinforced by the formation of the concave streak portion, and the deformation of the second columnar portion is suppressed.

A sixth aspect of the invention is characterized in that the recessed portion extends continuously to the connecting portion.

According to this structure, the boundary between the second columnar portion and the connecting portion is reinforced by the formation of the groove.

In a seventh aspect, a pump mechanism disposition space in which the pump mechanism is disposed is provided inside the cover, and a portion of the cover between the first columnar portion and the second columnar portion is It is characterized in that it is a communication portion for communicating the pump mechanism arrangement space with the outside of the cover.

According to this configuration, the pump mechanism can be seen from the portion between the first columnar portion and the second columnar portion, so that the pump mechanism can be part of the design.

An eighth invention is characterized in that the communication portions are formed on both sides of the cover.

According to this configuration, since the communication portions are formed on both sides of the cover, for example, when the cover is viewed from one side, the cover can be seen through the cover to the other side, which further diversifies the design. ..

According to the first aspect of the present invention, the resin cover is provided with the first columnar portion and the second columnar portion that extend in the up-down direction at an interval from each other, and the upper end portions of the first columnar portion and the second columnar portion are provided to each other. Since the connecting portion is provided, the cover design can be diversified, the amount of the resin material used can be reduced, and the deformation with respect to the vertical load can be minimized.

According to the second aspect of the invention, the first columnar portion and the second columnar portion are formed so as to come closer to each other as they approach the upper end portion, so that the length of the connecting portion can be shortened. Thereby, the deformation of the cover with respect to the vertical load can be further reduced.

According to the third aspect of the invention, the dimension of the first columnar portion is set so as to become longer as it gets closer to the lower end portion thereof, so that the strength of the root portion of the first columnar portion can be increased and the cover The deformation can be further reduced.

According to the fourth aspect of the present invention, the second columnar section arranged after the pump mechanism is made thinner than the first columnar section on the front side, so that the rear side of the cover can be designed to have a slender impression.

According to the fifth aspect of the present invention, since the concave line portion is formed in the second columnar portion, it is possible to suppress the deformation of the relatively thin second columnar portion, and as a result, the deformation of the cover is further reduced. You can

According to the sixth aspect of the present invention, since the concave streak portion is formed so as to be continuous from the second columnar portion to the connecting portion, the boundary portion between the second columnar portion and the connecting portion can be reinforced, and the deformation of the cover can be prevented. It can be further reduced.

According to the seventh aspect, since the pump mechanism can be seen from the outside of the cover, the design can be further diversified.

According to the eighth invention, by forming the communication portions on both sides of the cover, when the cover is viewed from one side, the other side can be seen through the cover, and the design can be further diversified. ..

It is the perspective view which looked at the liquid ejection device provided with the trigger type ejector concerning the embodiment of the present invention from the front side. It is the perspective view which looked at the liquid ejection device from the back side. It is a right side view of a liquid ejection device. It is a top view of a liquid ejection device. It is a rear view of a liquid ejection device. FIG. 5 is a cross-sectional view corresponding to line AA in FIG. 4, showing a state in which a container is omitted. It is a figure corresponding to FIG. 3 which concerns on the modification 1 of embodiment. It is a figure equivalent to FIG. 3 which concerns on the modified example 2 of embodiment. FIG. 11 is a diagram corresponding to FIG. 3 according to Modification 3 of the embodiment. It is a figure corresponding to FIG. 3 which concerns on the modification 4 of embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following description of the preferred embodiments is merely an example in essence, and is not intended to limit the present invention, its application, or its use.

FIG. 1 is a perspective view of a liquid ejecting apparatus 100 including a trigger ejector 1 according to an embodiment of the present invention, as viewed from the front side. The liquid ejecting apparatus 100 includes at least a trigger type ejector 1 and a container 2 that stores a liquid. The trigger type ejector 1 is attached to the container 2 and ejects the liquid contained in the container 2 to the outside. The container 2 is made of, for example, a resin member, and various deodorants, disinfectants, detergents, fungicides, antifungal agents, etc., or a liquid obtained by mixing these is contained inside the container 2. However, the liquid contained in the container 2 is not particularly limited, and liquids other than the above liquids can be contained.

(Overall structure of the trigger type ejector 1)
As shown in FIG. 6, the trigger-type ejector 1 includes a pump mechanism 10 for sucking the liquid contained in the container, a swingable trigger 20 for operating the pump mechanism 10, and a discharge hole 10 a included in the pump mechanism 10. And a resin cover 40 that is provided so as to cover the pump mechanism 10 and a nozzle 30 that communicates with the pump hole 10a and ejects the liquid discharged from the discharge hole 10a to the outside. The tube 11 is connected to the suction hole 10b of the pump mechanism 10. The tube 11 is disposed inside the container 2 and extends in the vertical direction until reaching the bottom of the container 2.

In the description of this embodiment, the side from which the liquid is ejected is the front side of the liquid ejecting apparatus 100, the opposite side is the rear side of the liquid ejecting apparatus 100, and when the liquid ejecting apparatus 100 is viewed from the front side, it becomes the right side. The side is the right side and the left side is the left side, but this is only defined for convenience of explanation, and does not limit the posture during actual use or the posture during storage. Can be used and stored in various postures.

(Structures of pump mechanism 10 and nozzle 30)
Since the pump mechanism 10 is well known in the art, detailed description thereof will be omitted. For example, the pump mechanism 10 can be configured to include a main body casing 12, a piston 13, a first check valve 14, and a second check valve 15. Inside the main body casing 12, a suction hole 10b extending in the vertical direction, a discharge hole 10a extending in the front-rear direction, and an intermediate passage 10c connecting the suction hole 10b and the discharge hole 10a are formed. The downstream end of the discharge hole 10a is open to the front end surface of the main body casing 12. The nozzle 30 is attached to the front end surface of the main body casing 12. The nozzle 30 communicates with the downstream end of the discharge hole 10a. The liquid can be ejected in a mist state by the shape of the opening of the nozzle 30. Further, depending on the type of liquid, it is possible to eject the liquid in the form of bubbles.

The suction hole 10b is opened at the lower end of the main body casing 12, and the upper end of the tube 11 is connected to this opening. The intermediate passage 10c extends in the vertical direction, the lower end portion of the intermediate passage 10c is connected to the upper end portion (downstream end portion) of the suction hole 10b, and the upper end portion of the intermediate passage 10c is located at the rear end portion (upstream end) of the discharge hole 10a. Part). A first check valve 14 is disposed between the upper end of the suction hole 10b and the lower end of the intermediate passage 10c, and the first check valve 14 prevents upward flow of liquid and gas. Although allowed, downward flow of liquids and gases is blocked. A second check valve 15 is provided between the rear end of the discharge hole 10a and the upper end of the intermediate passage 10c, and the second check valve 15 directs the discharge hole 10a. The liquid and gas flows are allowed but the downward liquid and gas flows are blocked.

A cylinder 10d is formed inside the main body casing 12. The cylinder 10d is arranged apart from the discharge hole 10a downward, and its center line extends in the front-rear direction. The rear end of the cylinder 10d communicates with the middle portion of the intermediate passage 10c. A piston 13 is inserted in the cylinder 10d. A seal member (not shown) is interposed between the outer peripheral surface of the piston 13 and the inner peripheral surface of the cylinder 10d, and the both are liquid-tightly and airtightly sealed. The piston 13 can reciprocate in the center line direction of the cylinder 10d, that is, in the front-rear direction. Although not shown, the piston 13 is always biased forward by a biasing means such as a spring. Further, although not shown, the movement amount of the piston 13 is regulated by a stopper so as not to come out of the cylinder 10d.

The lower portion of the body casing 12 is fixed to the upper portion of the container 2 by the nut 15.

(Structure of trigger 20)
The trigger 20 is composed of a member that is long in the vertical direction. The upper end of the trigger 20 is rotatably supported by a support shaft 21 (shown by broken lines only in FIG. 6) extending in the left-right direction with respect to the front portion of the main body casing 12. As a result, by applying an operating force to the rear side of the portion of the trigger 20 below the support shaft 21, the trigger 20 swings rearward against the biasing force of the biasing means. When the operating force is removed, the urging force of the urging means causes the oscillating body to swing forward. That is, the trigger 20 is supported so as to be swingable in the front-back direction with respect to the main body casing 12.

A connecting shaft 20a, to which the front end of the piston 13 is rotatably connected, is provided below the support shaft 21 of the trigger 20 so as to extend in the left-right direction. When the trigger 20 swings rearward, the piston 13 moves rearward in conjunction with the swinging of the trigger 20. The biasing force of the biasing means acts so as to move the piston 13 to the front side.

(Operation of pump mechanism 10)
When the user swings the trigger 20 rearward with a finger, for example, the piston 13 moves rearward in the cylinder 10d, and if liquid is present in the cylinder 10d, the liquid is transferred to the second check valve 15. Through the intermediate passage 10c to flow into the discharge hole 10a. The liquid that has flowed into the ejection hole 10 a is ejected from the nozzle 30. On the other hand, when the user removes the finger from the trigger 20, the piston 13 moves forward due to the urging force of the urging means, and the inside of the cylinder 10d becomes a negative pressure. 11, the suction hole 10b, and the first check valve 14 are passed through to fill the cylinder 10d. By repeating this, the liquid can be ejected.

(Structure of cover 40)
The cover 40 is, for example, an injection-molded hollow member, and inside the cover 40, a pump mechanism arrangement space R (shown in FIG. 6) in which the pump mechanism 10 is arranged is provided. As shown in FIG. 3, the cover 40 extends upward from the upper surface of the nut 15 to above the main body casing 12 of the pump mechanism 10. The trigger 20 is arranged so as to project downward from the lower end portion on the front side of the cover 40. The cover 40 also extends in the front-rear direction, and the front end portion of the cover 40 reaches the vicinity of the front end portion of the main body casing 12. As shown in FIG. 1 and the like, the nozzle 30 projects forward from the front end portion of the cover 40 and is exposed from the cover 40. The rear end of the cover 40 extends further to the rear than the rear end of the main body casing 12. As shown in FIG. 3, the vertical dimension of the cover 40 is set shorter than the longitudinal dimension of the cover 40.

The cover 40 has a wide portion 41 having a wide width in the left-right direction and a narrow portion 42 narrower than the width of the wide portion 41, and the wide portion 41 and the narrow portion 42 are integrally formed. The wide portion 41 is continuously provided from the lower side portion to the front side portion of the cover 40. The front side portion of the cover 40 is composed of a wide portion 41. On the other hand, the narrow portion 42 is not provided in the front portion of the cover 40, but is continuously provided from the middle portion in the front-rear direction of the cover 40 to the rear end portion. Further, the narrow portion 42 is not provided in the lower portion of the cover 40.

The cover 40 is provided with a front columnar section (first columnar section) 43 and a rear columnar section (second columnar section) 44 extending in the vertical direction. The front columnar portion 43 and the rear columnar portion 44 are arranged with a space therebetween in the front-rear direction, which is the swinging direction of the trigger 20. The lower end of the front columnar portion 43 is continuous with the front-rear direction intermediate portion of the wide portion 41 of the cover 40. The front columnar portion 43 extends so as to be located rearward as it approaches the upper end portion. Therefore, the upper end portion of the front columnar portion 43 is located behind the lower end portion of the front columnar portion 43. The front-rear direction dimension of the front columnar portion 43 is set so as to become longer as it gets closer to the lower end portion. Thereby, the strength of the root portion of the front columnar portion 43 can be increased. Further, a continuous plate portion 45 extending toward the front side is formed on the front side of the front columnar portion 43. The front side of the continuous plate portion 45 is continuous with the front side portion of the wide portion 41. Since the front columnar portion 43 and the continuous plate portion 45 are smoothly continuous, the boundary portion between the front columnar portion 43 and the continuous plate portion 45 does not appear in the appearance, but as shown by the phantom line L1 in FIG. In addition, the boundary between the front columnar portion 43 and the continuous plate portion 45 can be set. Further, the boundary between the front columnar portion 43 and the continuous plate portion 45 can be formed so as to be distinguishable.

The rear columnar portion 44 extends so as to be positioned closer to the upper end portion, so that the upper end portion of the rear columnar portion 44 is located in front of the lower end portion of the rear columnar portion 44. It will be. That is, the front side columnar portion 43 and the rear side columnar portion 44 are formed so as to come closer to each other as they get closer to the upper end portion. The dimension of the rear columnar portion 44 in the front-rear direction can be set so that it becomes longer as it gets closer to the lower end portion.

The rear columnar portion 44 is arranged after the rear end portion of the main body casing 12 of the pump mechanism 10. The rear columnar section 44 is formed thinner than the front columnar section 43. Specifically, the horizontal dimension of the rear columnar section 44 is shorter than the horizontal dimension of the front columnar section 43, and the front-back dimension of the rear columnar section 44 is the front-back dimension of the front columnar section 43. It is set shorter than the dimension in the direction. This is because the rear columnar portion 44 is arranged in a portion that does not house the pump mechanism 10.

The narrow portion 42 of the cover 40 is provided with a connecting portion 46 that connects the upper end portion of the front columnar portion 43 and the upper end portion of the rear columnar portion 44. As shown in FIG. 3, the connecting portion 46 is a portion between the virtual line L2 and the virtual line L3, and extends from the upper end portion of the front columnar portion 43 to the upper end portion of the rear columnar portion 44. In this embodiment, since the upper end portions of the front columnar portion 43 and the rear columnar portion 44 are close to each other, the length of the connecting portion 46 can be shortened.

As shown in FIG. 2, FIG. 4, FIG. 5, etc., on the outer surface of the rear columnar portion 44, a recessed line portion 47 extending in the vertical direction is formed. The concave streak portion 47 of the rear side columnar portion 44 continuously extends from near the lower portion of the rear side columnar portion 44 to the connecting portion 46. The formation of the concave streak portion 47 enhances the strength of the rear columnar portion 44 and also the strength from the rear columnar portion 44 to the connecting portion 46. Although not shown, a similar groove may be formed on the front columnar portion 43.

A portion of the cover 40 between the front columnar portion 43 and the rear columnar portion 44 is a communication portion 48 that communicates the pump mechanism arrangement space R with the outside of the cover 4. Communication parts 48 are formed on both sides of the cover 40, respectively. The communication portion 48 can be configured by a through hole or an opening formed between the front columnar portion 43 and the rear columnar portion 44 of the cover 40. The pump mechanism 10 can be seen from outside the cover 40 through the communication portion 48.

Further, the left communication portion 48 and the right communication portion 48 can have the same shape. Further, the left communication portion 48 and the right communication portion 48 can be formed at the same height. Thus, for example, when the cover 40 is viewed from the left side, the other side of the cover 40 can be seen through the left side communication portion 48 and the right side communication portion 48. The shape, size, position, and number of the communication parts 48 can be set arbitrarily.

(Operation and effect of the embodiment)
As described above, according to the trigger-type ejector 1 according to the present embodiment, the front columnar portion 43 and the rear columnar portion 44 are spaced from each other in the swing direction of the trigger 20 on the cover 40 that covers the pump mechanism 10. Since they are spaced apart, a space is formed between the front columnar portion 43 and the rear columnar portion 44. Since the space is formed between the front side columnar portion 43 and the rear side columnar portion 44 of the cover 40, it is possible to reduce the usage amount of the resin material forming the cover 40. Further, since there is a space between the front side columnar portion 43 and the rear side columnar portion 44 of the cover 40, this space can be used as a part of the design of the cover 40, and the design of the cover 40 can be varied. be able to.

Further, since the first front side columnar portion 43 and the rear side columnar portion 44 of the cover 40 are provided so as to extend in the vertical direction, when a load is applied to the cover 40 from above, for example, the front side columnar portion 43 and the rear side columnar portion 43 are provided. The rear columnar portion 44 acts so as to be stretched and can receive the load. A case in which a load is applied to the cover 40 from above is, for example, a case where the liquid jetting apparatus 100 is dropped during transportation or when the liquid jetting apparatus 100 is used. At this time, since the upper end portions of the front side columnar portion 43 and the rear side columnar portion 44 are connected by the connecting portion 47, it is difficult for the front side columnar portion 43 and the rear side columnar portion 44 to be deformed so as to widen the space, and The deformation amount of the cover 40 is reduced. As a result, failure of the pump mechanism 10 can be suppressed.

The above-described embodiments are merely examples in all respects, and should not be construed as limiting. Further, all modifications and changes belonging to the equivalent range of the claims are within the scope of the present invention.

In the first modification of the embodiment shown in FIG. 7, the front columnar portion 43 extends upward from the lower portion of the cover 40 and toward the front side. The rear columnar section 44 extends upward from the lower portion of the cover 40, and therefore, the front columnar section 43 and the rear columnar section 44 have a front-rear direction spacing that increases toward the upper side. The connecting portion 46 has a shape that is long in the front-rear direction from the upper end portion of the front columnar portion 43 to the upper end portion of the rear columnar portion 44.

In the second modification of the embodiment shown in FIG. 8, the front columnar portion 43 extends upward from the lower portion of the cover 40 toward the front side. The rear columnar portion 44 extends upward from the lower portion of the cover 40 and toward the front side. The connecting portion 46 has a shape that is long in the front-rear direction from the upper end portion of the front columnar portion 43 to the upper end portion of the rear columnar portion 44. The communication portion 48 is formed large from the front side to the rear side of the cover 40.

In Modification 3 of the embodiment shown in FIG. 9, the front columnar portion 43 extends upward from the upper portion of the wide portion 41. The rear columnar portion 44 also extends upward from the upper portion of the wide portion 41. The connecting portion 46 has a shape that is long in the front-rear direction from the upper end portion of the front columnar portion 43 to the upper end portion of the rear columnar portion 44.

In Modification 4 of the embodiment shown in FIG. 10, the front columnar portion 43 extends upward from the lower portion of the cover 40 and toward the front side. The rear columnar portion 44 extends upward from the lower portion of the cover 40 and toward the front side. The connecting portion 46 has a shape that is long in the front-rear direction from the upper end portion of the front columnar portion 43 to the upper end portion of the rear columnar portion 44. Further, the cover 40 is provided with an intermediate portion 49 extending downward from an intermediate portion of the connecting portion 46 in the front-rear direction to a vicinity of a lower portion of the cover 40. By providing the intermediate portion 49, the strength of the cover 40 can be further improved.

As described above, the trigger-type ejector according to the present invention can be used, for example, when spraying various deodorants, disinfectants, detergents, fungicides, antifungal agents, and the like.

1 Trigger Type Ejector 2 Container 10 Pump Mechanism 20 Trigger 30 Nozzle 40 Cover 43 Front Side Column (First Column)
44 Rear columnar portion (second columnar portion)
46 joint

Claims (8)

In a trigger type ejector that is attached to a container containing a liquid and ejects the liquid,
A pump mechanism for inhaling the liquid contained in the container,
A swingable trigger for operating the pump mechanism,
A nozzle communicating with a discharge hole of the pump mechanism, for ejecting the liquid discharged from the discharge hole to the outside,
A resin cover provided so as to cover the pump mechanism,
The cover includes a first columnar portion and a second columnar portion that are arranged at intervals in the swinging direction of the trigger and extend in the up-down direction, an upper end portion of the first columnar portion, and a second columnar portion. A trigger-type ejector characterized in that a connecting portion that connects the upper end portion is provided. The trigger type ejector according to claim 1,
The trigger type ejector characterized in that the first columnar portion and the second columnar portion are formed so as to come closer to each other as they approach the upper end portion. The trigger type ejector according to claim 1 or 2,
The trigger type ejector characterized in that the dimension of the trigger in the swing direction of the first columnar portion is set to become longer as it gets closer to the lower end portion. The trigger type ejector according to any one of claims 1 to 3,
When the side from which the liquid is ejected is the front side, the first columnar section is arranged in front of the second columnar section,
The trigger-type ejector characterized in that the second columnar section is arranged after the pump mechanism and is formed thinner than the first columnar section. The trigger type ejector according to claim 4,
The trigger type ejector, wherein the second columnar portion is formed with a recessed portion extending vertically. The trigger type ejector according to claim 5,
The trigger type ejector characterized in that the recessed portion extends continuously to the connecting portion. The trigger type ejector according to any one of claims 1 to 6,
Inside the cover, a pump mechanism arrangement space in which the pump mechanism is arranged is provided,
The trigger-type ejector characterized in that a portion of the cover between the first columnar portion and the second columnar portion is a communication portion that communicates the pump mechanism arrangement space with the outside of the cover. The trigger type ejector according to claim 7,
The trigger ejector characterized in that the communication portions are formed on both sides of the cover.

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