JP2014233679A - Trigger type sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger type sprayer capable of restraining a liquid drip from splashing on fingers in use.SOLUTION: The trigger type sprayer comprises a vessel for storing a liquid composition and a jetting device for jetting the liquid composition stored in the vessel, and the jetting device comprises a trigger part having an operation surface, a cylinder part connected to the trigger part and transferring the liquid composition in the vessel in response to operation of the trigger part and a jetting part for jetting the liquid composition transferred by the cylinder part, and the trigger part is provided with a projection part of projecting in the jetting direction for jetting the liquid composition so as to be positioned on the jetting part side more than the operation surface on the lower side in the vertical direction of the jetting part, and a through-hole of opening in a space formed on an inverse side surface of the operation surface of the trigger part, is formed on a surface on the side opposed to the jetting part in the projection part.

Description

  The present invention relates to a trigger type ejector.

  There has been proposed a trigger type ejector that suppresses the dripping dripping from the ejection portion from being applied to the hand by providing the dripping receiving portion under the ejection portion (Patent Document 1).

JP 2009-240982 A

  However, there is a problem that when the trigger is pulled, the liquid droop receiving part is inclined, so that the liquid accumulated in the liquid dripping receiver leaks and the liquid dripping is applied to the fingers.

  The present invention has been made in view of these circumstances, and an object of the present invention is to provide a trigger type ejector that can suppress dripping of a finger on a finger during use.

  The trigger type ejector of the present invention includes a container for storing a liquid composition, and an ejection device for ejecting the liquid composition contained in the container, and the ejection device has a trigger portion having an operation surface. And a cylinder part that is connected to the trigger part and transfers the liquid composition in the container according to an operation of the trigger part, and a jet part that jets the liquid composition transferred by the cylinder part, The trigger portion includes a protruding portion that protrudes in the ejection direction in which the liquid composition is ejected so as to be positioned on the ejection portion side of the operation surface on the lower side in the vertical direction of the ejection portion. And a through hole is formed in a surface of the projecting portion that faces the ejection portion. The through hole opens in a space formed by a surface of the trigger portion opposite to the operation surface.

  According to this configuration, the trigger portion is provided with the protruding portion on the lower side in the vertical direction of the ejection portion and on the ejection portion side from the operation surface of the trigger portion, and on the surface of the projection portion on the side facing the ejection portion. A through hole is formed in a space formed on the surface opposite to the operation surface of the trigger portion. Therefore, even if dripping of the liquid composition is dripped from the ejection portion, the dripping is received by the protruding portion, and dripping of the dripping onto the operation surface of the trigger portion can be suppressed. Then, the liquid dripped onto the protruding portion flows through the through hole of the protruding portion to the back surface side (space) of the trigger portion. As a result, by operating the trigger portion, it is possible to suppress dripping out of the operation surface of the trigger portion even when the posture of the protruding portion is inclined. Therefore, when the trigger type ejector is used, it is possible to suppress the dripping from adhering to the finger that is in contact with the operation surface of the trigger portion.

  The trigger type ejector of the present invention includes a container for storing a liquid composition, and an ejection device for ejecting the liquid composition contained in the container, and the ejection device has a trigger portion having an operation surface. And a cylinder part that is connected to the trigger part and transfers the liquid composition in the container according to an operation of the trigger part, and a jet part that jets the liquid composition transferred by the cylinder part, The trigger portion includes a protruding portion that protrudes in the ejection direction in which the liquid composition is ejected so as to be positioned on the ejection portion side of the operation surface on the lower side in the vertical direction of the ejection portion. And a slit for holding the liquid composition by capillary action is formed on the surface of the protruding portion on the side facing the ejection portion.

  According to this configuration, the trigger portion is provided with the protruding portion on the lower side in the vertical direction of the ejection portion and on the ejection portion side from the operation surface of the trigger portion, and on the surface of the projection portion on the side facing the ejection portion. A slit capable of holding the liquid dripping is formed by capillary action. Therefore, even if dripping of the liquid composition is dripped from the ejection portion, the dripping is received by the protruding portion and is held in the slit formed in the protruding portion by capillary action. Thereby, even when the attitude | position of a protrusion part inclines by operating a trigger part, it can suppress that a dripping leaks from a slit, and can suppress that a dripping adheres to the operation surface of a trigger part. Therefore, when the trigger type ejector is used, it is possible to suppress the dripping from adhering to the finger that is in contact with the operation surface of the trigger portion.

The slit may be opened on a surface of the protruding portion on the ejection direction side.
According to this configuration, since the slit opens on the surface on the ejection direction side of the protruding portion, even if the liquid dripping adheres to the surface on the ejection direction side of the protruding portion, the liquid dripping is prevented. It can be held in the slit.

The ejection device includes a locking portion provided on the opposite side of the trigger portion with respect to the container and above the container in the vertical direction, and the cylinder portion slides inside the cylinder portion. The piston which performs is provided, and the direction in which the piston slides and the direction of the line connecting the lower end of the protruding portion and the lower end of the locking portion may be substantially parallel.
According to this configuration, the direction in which the piston slides inside the cylinder portion is substantially parallel to the direction of the line connecting the lower end of the protruding portion and the lower end of the locking portion. Since the position of the upper side in the vertical direction is regulated by the locking part on the side of the hand and the protruding part on the finger that is in contact with the operation surface, the posture of the finger when holding the trigger type ejector is Becomes a posture substantially parallel to the sliding direction of the piston. As a result, when the trigger portion is operated, the direction in which the force is applied to the operation surface with the fingers is substantially parallel to the sliding direction of the piston, so that the trigger portion can be easily operated.

The projecting portion may project in the ejection direction from the ejection portion.
According to this structure, the precision which receives the liquid dripping from a jet part by a protrusion part can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the trigger type ejector which can suppress that the liquid dripping from an ejection part at the time of use adheres to a finger is obtained.

It is a figure which shows the trigger type ejector of 1st Embodiment, Comprising: (a) is a front view, (b) is a side view. It is a partial expanded sectional view which shows the trigger type ejector of 1st Embodiment. It is a partial expansion perspective view which shows the trigger type ejector of 1st Embodiment. It is a figure explaining trigger operation of the conventional trigger type ejector. It is a figure explaining trigger operation of the trigger type ejector of a 1st embodiment. It is a front view which shows the trigger type ejector of 2nd Embodiment. It is a partial expansion perspective view which shows the trigger type ejector of 2nd Embodiment.

Hereinafter, a trigger type ejector according to an embodiment of the present invention will be described with reference to the drawings.
The scope of the present invention is not limited to the following embodiment, and can be arbitrarily changed within the scope of the technical idea of the present invention. Moreover, in the following drawings, in order to make each structure easy to understand, the actual structure may be different from the scale, number, or the like in each structure.
In the description, an XYZ coordinate system is set, and the positional relationship of each member will be described with reference to the XYZ coordinate system. In this case, the vertical direction is the Z-axis direction, the ejection direction in which the liquid composition is ejected is the Y-axis direction (+ Y direction), and the direction orthogonal to both the Y-axis direction and the Z-axis direction is the X-axis direction.

  In the present specification, the “ejection direction” means a main direction among the directions in which the liquid composition is ejected, and in the present embodiment, is a direction parallel to the horizontal direction.

[First Embodiment]
First, each part of the trigger type ejector 1 of 1st Embodiment is demonstrated.
1 to 3 are views showing a trigger type ejector 1 according to the first embodiment.
FIG. 1A is a front view of the trigger type ejector 1, and FIG. 1B is a side view of the trigger type ejector 1.
FIG. 2 is a partially enlarged cross-sectional view of the trigger type ejector 1 taken along a plane (YZ plane) parallel to the vertical direction (Z-axis direction) and parallel to the ejection direction (+ Y direction).
FIG. 3 is a partially enlarged perspective view of the trigger type ejector 1.

As shown in FIGS. 1 and 2, the trigger type ejector 1 is attached to a container 21 and a neck portion 21 a of the container 21, and a trigger type ejection device 22 for ejecting the liquid composition accommodated in the container 21. And.
The shape of the container 21 is not particularly limited as long as it can accommodate the liquid composition, and may be any shape.

  As shown in FIG. 2, one end of the ejection device 22 is arranged in the container 21, and a liquid feeding tube 23 that sucks and feeds the liquid composition in the container 21 is connected to the other end of the liquid feeding tube 23. Valve portion 24, a cylinder (cylinder portion) 29 connected to the valve portion 24 through the communication hole 24c, a piston 30 that slides in the cylinder 29, and a trigger ( (Trigger part) 31, a tubular liquid passage part 38 provided on the upper side in the vertical direction (+ Z direction side) of the valve part 24 and having a liquid passage 25 formed therein, and a liquid connected to the liquid passage part 38 A guide plug 27 and a nozzle member (spouting portion) 26 that is connected to the liquid guide plug 27 and ejects the liquid composition outward are provided.

The valve unit 24 includes a ball body 24a and a valve body 24b.
The ball body 24 a is provided so as to be movable up and down in the vertical direction (Z-axis direction), and moves up and down by a change in pressure in the valve portion 24. When not operated (the state shown in FIG. 2), the ball body 24 a is located at the end of the valve unit 24 on the lower side in the vertical direction (−Z direction side), and the liquid feeding tube 23, the valve unit 24, , Has been cut off. When the trigger 31 is operated, the ball body 24a is moved to a position where the opening end of the liquid supply tube 23 on the upper side in the vertical direction (+ Z direction side) is opened due to the pressure change in the valve portion 24, and the liquid supply tube 23 is moved. And the valve portion 24 are communicated with each other. Details will be described later.

  The valve body 24b includes a spring portion 24e and a protruding portion 24f. The protruding portion 24f is connected to the spring portion 24e and is formed to protrude downward in the vertical direction (−Z direction). The spring portion 24e is formed in a tubular shape having a constriction at the center in the vertical direction. The spring portion 24e always applies a downward biasing force (−Z direction) to the protrusion 24f.

  When the valve body 24b is not operated (the state shown in FIG. 2), the protruding portion 24f is pushed downward in the vertical direction (−Z direction side) by the urging force of the spring portion 24e. The 38 liquid passages 25 are blocked. When the trigger 31 is operated, the protrusion 24 f moves upward in the vertical direction (+ Z direction side) due to a pressure change in the valve portion 24. The position of the end of the protrusion 24f on the upper side in the vertical direction (+ Z direction side) is higher (+ Z direction) than the position of the communication hole 24d formed in the valve body 24b. The fluid passage 25 of the portion 38 is communicated with the fluid through the communication hole 24d. Details will be described later.

The liquid guide plug body 27 includes a cylindrical attachment portion 34 and a columnar portion 37.
The liquid guide plug 27 is connected to the liquid passing portion 38 by fitting the attachment portion 34 to the outer periphery of the liquid passing portion 38. A communication hole 36 that is sufficiently smaller than the cross section of the liquid passage 25 is formed in the bottom 35 of the attachment portion 34. By this communication hole 36, the cross section of the flow path is rapidly reduced, and the flow rate of the liquid composition supplied through the liquid flow path 25 is increased.
Around the columnar portion 37, a substantially cylindrical passage 39 formed by a short cylindrical portion 26a of the nozzle member 26 described later is provided. Through the passage 39, the liquid composition is supplied from the liquid guide plug body 27 to the ejection hole 28 of the nozzle member 26 described later.

  The nozzle member 26 is provided in front of the liquid guide plug body 27 (+ Y direction) by fitting the short cylindrical portion 26 a of the nozzle member 26 to the columnar section 37 of the liquid guide plug body 27. Further, the nozzle member 26 is formed with a substantially circular ejection hole 28, and a diameter-enlarged portion 32 that is continuous with the ejection hole 28 and expands in a mortar shape toward the ejection direction (+ Y direction). .

  The nozzle member 26 is rotatable with respect to the liquid guide plug body 27, and by changing the positional relationship between the nozzle member 26 and the liquid guide plug body 27, the columnar portion 37 of the liquid guide plug body 27 is changed. The passage 39 formed in the periphery can be blocked, or the cross-sectional area of the passage 39 can be changed. Thereby, supply of the liquid composition to the ejection hole 28 in the nozzle member 26 can be interrupted, and the state of spin rotation applied to the liquid composition supplied to the ejection hole 28 can be controlled.

The cylinder 29 is provided such that the direction in which the piston 30 provided therein slides is parallel to the liquid composition ejection direction (+ Y direction). The cylinder 29 is provided with a cylinder chamber 29a which is a space on the side of the valve portion 24 divided by the piston 30 and is connected to the valve portion 24 by a communication hole 24c. The maximum volume of the cylinder chamber 29a (the volume in the state of FIG. 2) is equal to the amount of the liquid composition ejected from the nozzle member 26 by a single operation of the trigger 31, and can be 2 ml, for example.
A coil spring 30a is provided so that the axis of the cylinder 29 and the center axis coincide with each other. The coil spring 30a constantly applies an urging force in the ejection direction (+ Y direction) to the piston 30.

  The piston 30 slides by performing an operation such as grasping or loosening the trigger 31. More specifically, the piston 30 moves in the direction opposite to the ejection direction (−Y direction) by loosening the trigger 31 by grasping the trigger 31 and moving it closer to the container 21 (moving in the arrow direction in FIG. 2). Thus, the piston 30 moves in the ejection direction (+ Y direction) by the biasing force of the coil spring 30a. A concave surface 30b having a circular arc cross section is provided at the tip of the piston 30 in the ejection direction (+ Y direction).

  By operating the trigger 31 to reciprocate the piston 30 in the cylinder 29 in the Y-axis direction, the volume of the cylinder chamber 29 a can be changed and the liquid composition in the container 21 can be transferred to the nozzle member 26. Details will be described later.

  The trigger 31 is swingable about the rotation axis A, and as shown in FIGS. 1 to 3, in a state where it is not operated, the trigger 31 moves downward in the vertical direction (−Z) as it goes to the ejection direction (+ Y direction). The operation surface 31a is curved so as to have a concave shape. As shown in FIG. 2, a space 70 is formed on the back surface 31 b side of the trigger 31 by the back surface 31 b and the back side surface 31 c of the trigger 31. The space 70 is open to the atmosphere over the entire length of the end portion opposite to the ejection direction of the trigger 31 (the −Y direction side).

A projecting portion 42 is provided on the rotation axis A side (+ Z direction side) of the operation surface 31 a of the trigger 31.
The protruding portion 42 is formed to protrude in the ejection direction (+ Y direction). The planar view (XY plane view) shape of the protrusion 42 is not particularly limited, and may be a rectangular shape or another shape (for example, a circular shape) (rectangular shape in the drawing). The protrusion 42 is formed with an upper surface 42a provided at the periphery and a recess 42d surrounded by the upper surface 42a, and two through holes 42b are formed in the bottom surface 42e of the recess 42d. Each of the through holes 42b opens into the space 70 (see FIG. 2).

The planar view (XY plane view) shape of the through hole 42b is not particularly limited, and may be a rectangular shape or other shape (for example, a circular shape) (rectangular shape in the drawing). Further, the opening area of the through hole 42b is not particularly limited.
An end portion on the lower side in the vertical direction (−Z direction side) of the protruding portion 42 functions as a finger restricting portion 42c described later.

  Further, the trigger 31 is provided with an abutting portion 31d that is positioned closer to the rotation axis A than the protruding portion 42 and protrudes in the -Y direction. The contact portion 31 d has a tip that contacts the concave surface 30 b of the piston 30.

Next, a mechanism in which the trigger type ejector 1 ejects the liquid composition by operating the trigger 31 will be described.
First, a finger is put on the operation surface 31a of the trigger 31, and a force is applied in the direction in which the trigger 31 approaches the container 21 (the arrow direction shown in FIG. 2). When a force is applied to the trigger 31, a force in a direction against the urging force of the coil spring 30a is applied from the contact portion 31d of the trigger 31 to the piston 30 via the concave surface 30b. When a force greater than the urging force of the coil spring 30a is applied to the piston 30, the piston 30 is displaced in the direction opposite to the ejection direction (-Y direction), and the volume of the cylinder chamber 29a is reduced. As a result, air or the like in the cylinder chamber 29a is pushed out to the valve portion 24 through the communication hole 24c, and the inside of the valve portion 24 changes from atmospheric pressure to positive pressure.

  The positive pressure in the valve portion 24 acts in a direction to displace the protrusion 24f of the valve body 24b in the vertical direction upper side (+ Z direction side), so that the pressure in the valve portion 24 is reduced by the spring portion 24e of the valve body 24b. When exceeding the urging force, the protrusion 24f is displaced upward in the vertical direction (+ Z direction side). Thereby, the valve part 24 and the liquid flow path 25 of the liquid flow part 38 are connected via the communication hole 24d. When the valve portion 24 and the fluid passage 25 communicate with each other, the pressure in the valve portion 24 is reduced because it is equal to the pressure (atmospheric pressure) in the fluid passage 25, and the urging force of the spring portion 24e is reduced in the valve portion 24. Over pressure. As a result, the projecting portion 24f of the valve body 24b moves downward in the vertical direction (−Z direction side) due to the urging force of the spring portion 24e, and the communication between the valve portion 24 and the fluid passage 25 is blocked again.

  Next, when the force applied to the trigger 31 is loosened, the trigger 31 and the piston 30 are returned to their original positions (positions shown in FIG. 2) by the biasing force of the coil spring 30a, and the volume of the cylinder chamber 29a increases. At that time, the air in the valve portion 24 is sucked into the cylinder chamber 29a. As a result, the inside of the valve section 24 changes to a negative pressure with respect to the pressure in the liquid feeding tube 23, that is, the pressure in the container 21 (atmospheric pressure). + Z direction side). As a result, the valve unit 24 and the liquid feeding tube 23 communicate with each other. Note that the vertical position of the ball body 24a when lifted is limited by the end portion on the lower side in the vertical direction (the −Z direction side) of the protrusion 24f of the valve body 24b.

  The valve part 24 and the liquid feeding tube 23 communicate with each other, so that the pressure difference between the inside of the liquid feeding tube 23 (in the container 21) and the inside of the valve part 24 causes the valve part 24 to pass through the liquid feeding tube 23. The liquid composition stored in the container 21 is sucked up. The sucked liquid composition flows into the cylinder chamber 29a through the communication hole 24c and is stored therein.

  Next, when a force is applied again in the direction approaching the container 21 with respect to the trigger 31, the piston 30 moves in the same manner as described above, and the volume of the cylinder chamber 29a is reduced and accommodated in the cylinder chamber 29a. The liquid composition thus formed is pushed into the valve portion 24 through the communication hole 24c. Thereby, the hydraulic pressure in the valve part 24 rises. Since the hydraulic pressure in the valve portion 24 exceeds the urging force of the spring portion 24e, the protrusion 24f of the valve body 24b is displaced upward in the vertical direction (+ Z direction side) in the same manner as described above. 24 and the liquid passage 25 are communicated with each other through the communication hole 24d. The liquid composition in the valve portion 24 is pushed out to the liquid passage 25 through the communication hole 24d by the liquid pressure. Then, the liquid composition that has flowed out into the liquid passage 25 flows into the liquid guide plug body 27 from the communication hole 36 through the liquid passage 25. The liquid composition flowing into the liquid guide plug 27 is supplied to the ejection hole 28 of the nozzle member 26 through the passage 39 and ejected forward (+ Y direction).

  As described above, when the liquid composition is ejected, a part of the ejected liquid composition may become a dripping 40 and may drop along the lower end of the nozzle member 26. In such a case, in the conventional trigger type ejector, the dripped liquid may adhere to the operator's finger.

  On the other hand, according to the trigger type ejector 1 of the present embodiment, the trigger 31 includes the protruding portion 42, and the protruding portion 42 is on the lower side in the vertical direction of the nozzle member 26 and the operation surface of the trigger 31. It is provided closer to the nozzle member 26 than 31a. A through hole 42b is formed in the bottom surface 42e of the recess 42d in the protrusion 42. Therefore, as shown in FIGS. 2 and 3, the dripping 40 dripped from the nozzle member 26 is received by the projecting portion 42, and the received dripping 40 is connected to the back side (space 70) of the trigger 31 through the through hole 42 b. To the other side). More specifically, as shown in FIG. 2, the liquid dripping 40 that has passed through the through hole 42 b flows along the inner wall of the protruding portion 42 to the back surface 31 b of the trigger 31. Therefore, even when the posture of the protruding portion 42 is changed by the operation of the trigger 31 and the protruding portion 42 is tilted, it is possible to suppress the leakage 40 from leaking to the operation surface 31a. It can suppress that 40 adheres.

  Further, even when the dripping 40 does not drop directly on the through-hole 42b but drops on the bottom surface 42e, the dipping 40 is temporarily held by providing the recess 42d. The leakage of the dripping 40 can be suppressed. The temporarily retained liquid 40 is sequentially discharged from the through hole 42b to the back surface 31b of the trigger 31.

  Further, according to the present embodiment, by providing the protruding portion 42, the lower end of the protruding portion 42 functions as a finger restricting portion 42c, and the position where the finger is put on the operation surface 31a is restricted. Thereby, since the posture of the hand can be substantially parallel to the operation direction of the trigger 31 (the sliding direction of the piston 30), the operation of the trigger 31 is easy. This will be specifically described below with reference to the drawings.

FIG. 4 is a side view for explaining the operation of the conventional trigger type ejector 60.
FIG. 5 is a side view for explaining the operation of the trigger type ejector 1 of the present embodiment.
4 and 5, (a) shows before operation, and (b) shows after operation.
The trigger type ejector 60 shown in FIG. 4 is different from the trigger type ejector 1 of the present embodiment in that the protrusion 42 is not provided.

  As shown in FIG. 4 (a), in the trigger type ejector 60 that is not provided with a protrusion, the position of the finger 61 on the operation surface of the trigger 61 is not restricted, so that it is located above the operation surface (on the nozzle member 26 side). You may put your fingers on it. In such a case, the position of the finger (mainly the index finger) and the lower end of the locking portion 62 that locks the side surface of the hand are different in the vertical direction (Z-axis direction). The longitudinal direction is inclined with respect to the sliding direction (Y-axis direction) of the piston 64 in the cylinder 63. As a result, the direction of the force applied to the trigger 61 by the fingers is a direction inclined with respect to the sliding direction of the piston 64 (arrow direction shown in the figure), and an extra force is required to move the piston 64.

  On the other hand, in the trigger type ejector 1 of the present embodiment, as shown in FIG. 5, the position of the finger applied to the operation surface 31 a is regulated by the finger regulating portion 42 c at the lower end of the protruding portion 42. In the present embodiment, the protruding portion 42 is provided at the same height as the lower end of the locking portion 41 of the ejection device 22 at the position of the finger regulating portion 42c which is the lower end. Therefore, when the trigger type ejector 1 is gripped, the longitudinal direction of the fingers is in a substantially horizontal posture, and is substantially parallel to the sliding direction (Y-axis direction) of the piston 30 in the cylinder 29. Therefore, as shown in FIG. 5A, the force applied to the trigger 31 by the fingers is in the horizontal direction (in the direction of the arrow in the drawing) and is substantially parallel to the sliding direction of the piston 30. As a result, it is difficult to apply an extra force when operating the trigger 31, and the operation burden can be reduced as compared with the conventional trigger type ejector, and the operability can be improved.

  The above effect is particularly great in a trigger type ejector having a large amount of ejection. In order to increase the amount of liquid composition ejected at a time, it is necessary to increase the volume of the cylinder chamber to which the liquid composition is transferred. For this purpose, the length of the cylinder chamber in the sliding direction is increased. Or it is necessary to increase the diameter of the cylinder itself. However, the former method is not preferable because the distance from the container to the trigger becomes long and it becomes difficult to operate the trigger. Therefore, a method of using a large-capacity trigger type ejector with a large ejection amount by increasing the diameter of the cylinder itself is used.

  However, in such a large-capacity trigger type ejector, since the cylinder diameter is large, the resistance when the piston slides is large, and the force required for the trigger operation for moving the piston is also large. As a result, there are cases where a large burden is placed on the hand due to a long-time trigger operation. On the other hand, in the trigger type ejector 1 of the present embodiment, as described above, since it is possible to suppress the application of excessive force, a large capacity trigger type ejector (for example, the volume of the cylinder chamber) is large. Can reduce the burden due to the use of a 2ml trigger type sprayer.

  In the present embodiment, the following configuration can also be adopted.

The number of through-holes 42b formed is not particularly limited, and may be one or three or more.
A through hole may be formed over the entire bottom surface of the recess 42d.

  The protruding portion 42 may protrude in the ejection direction (+ Y direction) from the nozzle member 26. According to this configuration, the liquid dripping 40 dripping from the nozzle member 26 is easily received by the protrusion 42.

[Second Embodiment]
Next, 2nd Embodiment which is a trigger type ejector with which the slit is provided in the protrusion part instead of the through-hole is described.
In addition, about the component similar to the said embodiment, the code | symbol similar to the said embodiment is attached | subjected suitably, and the description is simplified or abbreviate | omitted.

6 and 7 are diagrams showing the trigger type ejector 2 of the second embodiment.
6 is a front view, and FIG. 7 is a partially enlarged perspective view.
The side view is the same as the side view of the first embodiment shown in FIG.

As shown in FIGS. 6 and 7, the trigger type ejector 2 is provided with a protrusion 52 on the trigger 51 in the ejection device 55 in the same manner as in the first embodiment. The protrusion 52 is provided with a slit 52c.
The slit 52c opens on the upper surface 52a on the side facing the nozzle member 26 (+ Z direction side) and the side surface 52b on the ejection direction side (+ Y direction side) of the protrusion 52, and the width direction (X Three are formed side by side along the axial direction.
The width (length in the X-axis direction) of the slit 52c is set to a length that causes capillary action with respect to the liquid dripping 40, and is not particularly limited within the range.

  According to the trigger type ejector 2 of the present embodiment, the dripping 40 dripped from the nozzle member 26 adheres to the protruding portion 52 provided on the lower side in the vertical direction of the nozzle member 26. Since the slit 52c which produces a capillary phenomenon is formed in the protrusion part 52, as shown in FIG. 7, the slit 52c hold | maintains the dripping 40 inside by a capillary phenomenon. Therefore, even when the protrusion 52 is tilted by the operation of the trigger 51, the liquid dripping 40 is held in the slit 52c and is prevented from leaking. Therefore, it is possible to suppress the dripping 40 from adhering to the finger of the operator.

Moreover, since the slit 52c is opened also to the side surface 52b, even if the liquid dripping 40 adheres to the side surface 52b, the liquid dripping 40 can be held in the slit 52c.
Further, the slit 52c can be easily formed.

  In the present embodiment, the following configuration can also be adopted.

The number of slits 52c is not particularly limited, and may be two or less or four or more.
Moreover, the slit 52c does not need to open to the side surface 52b.

  Further, a through hole may be formed on the bottom surface of the slit 52c in the same manner as in the first embodiment.

[Example]
Next, as an example, a trigger operability verification experiment in the trigger type ejector of the present embodiment will be described.
The trigger type ejector used in the verification experiment is of a type with a large cylinder chamber volume of 2 ml, and as an example, a trigger type ejector similar to the trigger type ejector 1 shown in the first embodiment is used. As a comparative example, a trigger-type ejector similar to the trigger-type ejector 60 provided with no protrusions as shown in FIG. 4 was used.

Seven test subjects were operated on the trigger type ejectors of the example and the comparative example, and a sensory test was performed on the operability of the trigger. The operability of the trigger was evaluated according to the following 7 levels and scored.
Very easy to operate. 7 points. Easy to operate. 6 points. Somewhat easy to operate .. 5 points. Cannot say either .. 4 points. Somewhat difficult to operate .. 3 points. Point It is very difficult to operate. 1 point The higher the score, the easier the operation (higher operability), and the lower the score, the harder the operation (low operability).

  As a result, the average evaluation of the comparative example was 3.5 points, while the average evaluation of the example was 5.4 points. Thereby, compared with the conventional trigger type ejector which is not provided with the protrusion part, the trigger type ejector of the present embodiment provided with the protrusion part (finger restricting part) is easy to operate the trigger and is easy to operate. It was confirmed that it can improve.

  Moreover, the average score of the evaluation obtained by the sensory test in the present example is the operability evaluation in the trigger type ejector of the type in which the protruding portion is not provided and the volume of the cylinder chamber is 1 ml and the amount of ejection is small. It was about the same as the average score. As a result, the cylinder chamber has a volume of 2 ml, and the trigger type ejector has a large amount of ejection. By providing a protruding part (hand regulating part), the cylinder chamber has the same capacity as the 1 ml type trigger ejector. It was found that sex was obtained.

  DESCRIPTION OF SYMBOLS 1,2 ... Trigger type ejector, 21 ... Container, 22,55 ... Ejection device, 26 ... Nozzle member (ejection part), 29 ... Cylinder (cylinder part), 30 ... Piston, 31, 51 ... Trigger (trigger part) , 31a ... operation surface, 41 ... locking portion, 42, 52 ... projecting portion, 42b ... through hole, 42e ... bottom surface (surface facing the ejection portion), 52a ... upper surface (surface facing the ejection portion) ), 52b ... side surface (surface on the ejection direction side), 52c ... slit, 70 ... space

Claims (5)

A container for storing the liquid composition, and a spraying device for spraying the liquid composition stored in the container,
The ejection device is
A trigger portion having an operation surface;
A cylinder part connected to the trigger part and transferring the liquid composition in the container in accordance with an operation of the trigger part;
An ejection part for ejecting the liquid composition transferred by the cylinder part;
With
The trigger portion is provided with a protruding portion that protrudes in the ejection direction in which the liquid composition is ejected so as to be positioned on the ejection portion side of the operation surface on the lower side in the vertical direction of the ejection portion. ,
The trigger type ejector in which the through hole which opens to the space formed in the surface on the opposite side to the said operation surface of the said trigger part is formed in the surface on the side facing the said ejection part in the said protrusion part. A container for storing the liquid composition, and a spraying device for spraying the liquid composition stored in the container,
The ejection device is
A trigger portion having an operation surface;
A cylinder part connected to the trigger part and transferring the liquid composition in the container in accordance with an operation of the trigger part;
An ejection part for ejecting the liquid composition transferred by the cylinder part;
With
The trigger portion is provided with a protruding portion that protrudes in the ejection direction in which the liquid composition is ejected so as to be positioned on the ejection portion side of the operation surface on the lower side in the vertical direction of the ejection portion. ,
The trigger type ejector in which the slit which hold | maintains the said liquid composition by the capillary phenomenon is formed in the surface on the side facing the said ejection part in the said protrusion part.     The trigger type ejector according to claim 2, wherein the slit is opened on a surface of the projecting portion on the ejection direction side. The ejection device includes a locking portion provided on the opposite side of the trigger portion across the container and on the upper side in the vertical direction from the container,
The cylinder part is provided with a piston that slides inside the cylinder part,
The trigger according to any one of claims 1 to 3, wherein a direction in which the piston slides and a direction of a line connecting a lower end of the protruding portion and a lower end of the locking portion are substantially parallel. Type ejector.     The trigger type ejector according to any one of claims 1 to 4, wherein the projecting portion projects more in the ejecting direction than the ejecting portion.

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