JP2018043777A - Jetting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jetting device in which a user does not feel that a pulling pressure is heavy, even when a length of a trigger is longer than that in prior arts, and operation property of the trigger can be improved.SOLUTION: The jetting device comprises: a container for storing a liquid composition; and a dispenser attached to the container. The dispenser comprises: a jetting device body comprising a trigger operation part and a nozzle part for jetting the liquid composition stored in the container according to an operation of the trigger operation part; and a shroud which is externally fitted to the jetting device body. The shroud comprises a top wall and a pair of side walls provided on both sides of the top wall. In inside of an area surrounded by first extension lines extending from a side on a nozzle part side on the side walls and second extension lines extending from a lower side, connection sides for connecting the side and lower side exist. The connection sides are positioned outside of a straight line connecting an end part of the side and an end part of the lower side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ejector.

2. Description of the Related Art Conventionally, a trigger type liquid ejector having a piston mechanism for quantitatively ejecting a liquid composition such as a detergent is frequently used when cleaning a kitchen, a bathroom, glass or the like.
In such a trigger type ejector, the liquid composition contained in the container is suctioned and pumped by a piston mechanism (pump) provided in the ejector body by repeatedly checking the trigger, and the ejector body A structure that ejects through a nozzle is often used. The piston mechanism includes a cylinder and a piston, and the piston reciprocates in the cylinder in conjunction with a trigger. Most of the ejector body is covered with a shroud except for the nozzle, and a shroud is provided to enhance the aesthetics by hiding the complicated structure around the piston mechanism and its surroundings.

  When such an ejector is used, the upper part of the container equipped with the shroud-equipped ejector body is held and held in its entirety, and a trigger operation is performed with one forefinger or two forefinger and middle finger. In general, the length of the trigger is approximately 50 mm to 60 mm in consideration of the width of one or one finger to be applied during the trigger operation.

  When the ejection amount of the liquid composition is increased in the conventional configuration, for example, when the amount is increased from 1 cc to 2 cc, the cylinder diameter is increased or the stroke of the piston is increased. Then, the pulling pressure of the trigger increases and the operability is lowered. Therefore, in order to reduce an increase in the pulling pressure of the trigger due to the large volume ejection, a long lever longer than a general trigger length is employed (for example, Patent Documents 1 to 3).

JP 2014-233679 A JP 2007-186242 A JP 2006-130416 A

However, in the conventional configuration, for example, as shown in FIG. 7, the lower end side of the shroud 91 in the vicinity of the nozzle 92 is shaped to be hollowed out inward (Patent Documents 1 to 3). In FIG. 7, the side 94 is curved inwardly in a concave shape. For this reason, for example, as shown in FIG. 8, many people perform the trigger operation while holding the lower end (side 94) of the shroud 91 and holding the shroud 91.
In this case, the positional relationship between the index finger holding the trigger 93 and its base is horizontal or the index finger is positioned above the thumb, and the index finger is automatically applied to the base of the trigger 93. There was a problem that the pulling pressure felt heavy.

  One aspect of the present invention is made in view of the above-mentioned problems of the prior art, and even if the trigger length is longer than that of the conventional trigger, the trigger pressure is not felt heavy, and the trigger operability is improved. It aims at providing the ejector which can be improved.

  The ejector which concerns on 1 form of this invention is an ejector provided with the container which accommodates a liquid composition, and the dispenser with which the said container is mounted | worn, The said dispenser responds to operation of a trigger operation part and the said trigger operation part An ejector body having a nozzle portion for ejecting the liquid composition contained in the container, and a shroud externally mounted on the ejector body, the shroud comprising an upper wall and an upper wall A pair of side walls provided on both sides of the nozzle, and inside a region surrounded by a first extension line extending from a side of the side wall on the nozzle part side and a second extension line extending from a lower side, There is a connection side connecting the side and the lower side, and the connection side is located outside a straight line connecting the end of the side and the end of the lower side.

  The ejector which concerns on one form of this invention WHEREIN: The intersection of the said connection edge | side and the side part by the side of the said nozzle part is good also as a structure located in the said container side rather than the lower end of the said nozzle part.

  The ejector which concerns on one form of this invention WHEREIN: The said connection edge is good also as a structure located in the said nozzle part side rather than the mounting position of the said dispenser and the said container.

  The ejector which concerns on one form of this invention WHEREIN: The said connection edge | side is good also as a structure which is the edge | side curved in convex shape on the outer side.

  ADVANTAGE OF THE INVENTION According to this invention, even if the length of a trigger is a trigger longer than the past, the ejector which can make the pulling pressure feel heavy and can improve the operativity of a trigger can be provided.

The perspective view which shows the whole structure of the ejector of 1 aspect which concerns on this invention. The exploded view which shows the structure of the ejector of 1 aspect which concerns on this invention. The side view which shows the ejection apparatus of 1 aspect which concerns on this invention. The top view which shows the ejection apparatus of 1 aspect which concerns on this invention. The rear view which shows the ejection apparatus of 1 aspect which concerns on this invention. The figure which shows the mode at the time of use of the ejection apparatus of 1 aspect which concerns on this invention. The figure for demonstrating the structure of the conventional ejection apparatus. The figure which shows the mode at the time of use of the conventional ejection apparatus. The side view which shows the other example of the shroud which concerns on this invention.

[One Embodiment]
Hereinafter, an ejector according to an embodiment of the present invention will be described.
In the following drawings, in order to make each component easy to see, the scale of dimensions may be different depending on the component.
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. At this time, the vertical direction is the Z direction, the ejection direction in which the liquid composition is ejected is the Y direction (+ Y direction), and the direction orthogonal to both the Y direction and the Z direction is the X direction.

  FIG. 1 is a perspective view showing an overall configuration of an ejector according to an aspect of the present invention. FIG. 2 is an exploded view showing a configuration of an ejector according to an aspect of the present invention. FIG. 3 is a side view showing the ejection device according to one aspect of the present invention. FIG. 4 is a top view showing the ejection device according to one aspect of the present invention. FIG. 5 is a rear view showing the ejection device of one aspect according to the present invention.

  As shown in FIG. 1, the ejector 10 of this embodiment is attached to the container 31 and the upper part of this container 31, and is a trigger type ejection apparatus (dispenser) for ejecting the liquid composition accommodated in the container 31. 11). The ejection device 11 includes an ejector body 12, a shroud 13 that is externally mounted on the ejector body 12, and an attachment cap 8 that is attached to the container 31.

As shown in FIG. 2, the ejector 10 incorporates a reciprocating pump 15 that is operated by a trigger operation unit 14 inside an ejector body 12 that constitutes the ejection device 11, and is interlocked with the operation of the trigger operation unit 14. Then, by operating the reciprocating pump 15, the liquid composition in the container 31 is sucked and ejected.
The shape of the container 31 (FIG. 1) is not particularly limited as long as it can accommodate the liquid composition, and may be any shape.

  The ejector body 12 includes a body 4, a valve (not shown), a reciprocating pump 15, a liquid passing part 18, and a liquid guide plug 19 in addition to the trigger operation part 14, the liquid feeding tube 16, and the nozzle part 20.

One end of the liquid feeding tube 16 is connected to the reciprocating pump 15 via a valve (not shown), and the other end is inserted into the container 31.
The reciprocating pump 15 includes a cylinder 21 connected to the valve (not shown) and a piston 22 (FIG. 2) that slides inside the cylinder 21, and is connected to the body 4. The reciprocating pump 15 sucks the liquid composition from the container 31 by operating the trigger operation unit 14 and pressurizes and pumps the liquid composition to the body 4 side through a valve (not shown).

  The trigger operation unit 14 is provided adjacent to the reciprocating pump 15. As shown in FIG. 2, the trigger operation unit 14 is connected to the body 4 via the return spring 6 and is provided so as to be swingable about the rotation shaft 7 as a fulcrum A. The trigger operation unit 14 extends toward the lower side in the vertical direction (−Z side) as it goes in the ejection direction (+ Y direction) in a state where it is not operated. The return spring 6 is deformed by the pulling operation of the trigger operation unit 14, and the pulling operation of the trigger operation unit 14 is released. At the same time, the trigger operation unit 14 is returned to the original position by the elastic force of the return spring 6.

  The body 4 is formed of a synthetic resin (for example, PP, PE, Ny, PET, PS, POM, PAN, ABS, etc.), and has a valve and a reciprocating pump 15 inside. On the upper part of the body 4, there is a liquid passing part 18 that allows the inside of the valve and the cylinder 21 to communicate with each other. In the body 4, a liquid guide plug body 19 is fitted at the tip of the liquid passing section 18, and a nozzle section 20 is mounted at the tip of the liquid guide plug body 19. Further, a shroud 13 made of synthetic resin is attached to the outside of the body 4.

  The shroud 13 is attached to the ejector body 12 by sliding it from the rear to the front. As shown in FIGS. 3, 4, and 5, the shroud 13 includes an upper wall 13 a, side walls 13 b and 13 b depending on both sides of the upper wall 13 a in the short direction, and a bottom wall opposite to the upper wall 13 a. 13f and a back wall 13g which is located on each end side of the upper wall 13a, the side walls 13b and 13b, and the bottom wall 13f and connects them.

  The shroud 13 of the present embodiment is located inside the region R surrounded by the first extension line 101 extending from the side 13c on the side of the nozzle portion 20 on the side walls 13b and 13b and the second extension line 102 extending from the lower side 13d. There is a connecting side 13e that connects the side 13c and the lower side 13d. The connecting side 13e is a side curved in a convex shape outside the straight line 103 that connects the end of the side 13c and the end of the lower side 13d. Note that the curvature of the connection side 13e is set as appropriate.

  The intersection S between the side 13c on the nozzle part 20 side and the connection side 13e is located below (on the container 31 side) the lower end 20b of the nozzle part 20. Further, the connection side 13e is located on the nozzle portion 20 side of the mounting position of the ejection device 11 and the container 31, for example, the mounting cap 8.

  As shown in FIG. 2, guide portions 17 and 17 are provided on both side walls 13 b and 13 b of the shroud 13 on the inner surface on the ejector body 12 side. On the other hand, guide grooves 23 and 23 for guiding the guide portions 17 and 17 of the shroud 13 in the sliding direction are provided on the ejector body 12 side. The shroud 13 is mounted on the ejector body 12 by inserting the guide portions 17 and 17 provided on the shroud 13 into the guide grooves 23 and 23 provided on the ejector body 12 and sliding along the + Y direction. Can do.

According to the configuration of the present embodiment, the connection side 13e of the shroud 13 is located outside the position of the connection side of the conventional shroud (shown by a broken line in FIG. 3) and further curved outward. Yes. Therefore, when the ejection operation is performed by grasping the trigger operation portion 14, the position of the hand moves downward along the connection side 13e as shown in FIG. 6, and the user can connect the connection side 13e of the shroud 13. And a position away from the intersection S of the side 13c. In this case, the positional relationship between the index finger holding the trigger operation unit 14 and the base thereof is such that the index finger is positioned below the thumb and the index finger is naturally placed at a position away from the base of the trigger operation unit 14.
Thereby, by restricting and guiding the handling position of the user's ejector 10 by the shape of the shroud 13, the pulling pressure of the trigger operation unit 14 can be felt lightly, and the trigger operability can be improved.

  For this reason, in the ejector 10 of this embodiment, even if the fixed amount of ejection is increased from 1 cc to 2 cc, and the diameter of the cylinder 21 is increased and the stroke of the piston 22 is increased, the ejection operation is performed by grasping the trigger operation unit 14. When the operation is performed, the rotary shaft 7 of the trigger operation unit 14 is gripped on the lower end side farther than the fulcrum A from the lever principle, so that the force for pulling the trigger operation unit 14 is small.

Thus, since the trigger operation part 14 can be operated easily, even if it is a case where a liquid composition is used in large quantities at once, even if the number of times of ejection is large, the hand does not get tired, Handling does not hurt your hands.
Therefore, according to the present embodiment, it is possible to provide the ejector 10 that can improve the operability of the trigger operation unit 14 without making the pulling pressure of the trigger operation unit 14 feel heavy.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, the connection side 13e in the shroud 13 is not limited to the shape and position described above, and can be changed as appropriate. Specifically, as long as it is located inside the region R surrounded by the first extension line 101, the second extension line 102, and the straight line 103, the shape and the position are not particularly limited. Alternatively, as shown in FIG. 9, the connection side 13e is formed in a concavo-convex shape, so that the user's finger feels uncomfortable and the user's handling position can be naturally guided to the lower end side of the trigger operation unit 14. It can also be a shape.

  DESCRIPTION OF SYMBOLS 10 ... Ejector, 11 ... Ejection apparatus (dispenser), 12 ... Ejector body, 13, 91 ... Shroud, 13a ... Upper wall, 13b ... Side wall, 13c ... Side edge, 13d ... Lower edge, 13e ... Connection edge, 20 ... Nozzle part, 20b ... lower end, 31 ... container, 101 ... first extension line, 102 ... second extension line, 103 ... straight line, R ... region, S ... intersection

Claims (4)

In an ejector comprising a container containing a liquid composition and a dispenser attached to the container,
The dispenser is
An ejector body having a trigger operation part, and a nozzle part for ejecting the liquid composition accommodated in the container according to the operation of the trigger operation part;
A shroud externally mounted on the ejector body,
The shroud has an upper wall and a pair of side walls provided on both sides of the upper wall;
There is a connection side connecting the side and the lower side inside the region surrounded by the first extension line extending from the side on the nozzle part side in the side wall and the second extension line extending from the lower side,
The connection side is an ejector that is located outside a straight line connecting an end of the side and an end of the lower side. The intersection of the connection side and the side part on the nozzle part side is located on the container side from the lower end of the nozzle part,
The ejector according to claim 1. The connection side is located on the nozzle part side from the mounting position of the dispenser and the container.
The ejector according to claim 1 or 2. The connection side is a side curved in a convex shape outward,
The ejector as described in any one of Claim 1 to 3.

Images