JP5322565B2 - Trigger type liquid ejector - Google Patents

Description

  The present invention relates to a trigger type liquid ejector.

Generally, a trigger type liquid ejector includes an ejector body, a nozzle provided at the front end of the ejector body, and a cover portion that covers the ejector body. And a non-movable cylinder portion disposed on the rear side of the operation lever, and a movable portion that can be slid back and forth in the non-movable cylinder portion when the operation lever moves back and forth. A reciprocating pump.
In recent years, in order to prevent the content liquid from being unexpectedly ejected from the nozzle due to an erroneous operation of the operation lever, an intermediate portion located between the operation lever and the non-movable cylinder portion in the movable portion is disclosed in, for example, Patent Document 1 below. As shown, there has been proposed a configuration in which a split ring-shaped stopper member for restricting movement toward the rear of the operation lever is detachably fitted.
Japanese Patent No. 3230993

However, the conventional trigger type liquid ejector has a problem that the stopper member is easily lost during use.
In addition, after ejecting the content liquid, for example, if dust or insects are attached to the part to be ejected, such as a wall surface, and it is necessary to remove it, it is possible to remove the adhering substance without touching it directly by hand. It took time to find the right tools and sometimes made the inconvenience to consumers.

  The present invention has been made in view of the above-described circumstances, and it is possible to suppress the loss of the stopper member, and it is possible to immediately remove the deposits attached to the ejection location. An object is to provide a trigger type liquid ejector.

In order to solve this problem, the trigger type liquid ejector of the present invention includes an ejector body, a nozzle provided at a front end of the ejector body, and a cover portion that covers the ejector body. The ejector body includes an operation lever that is vertically suspended at a front portion of the ejector body, a non-movable cylinder portion that is disposed on the rear side of the operation lever, and the non-movable cylinder portion that is moved in the forward and backward directions of the operation lever. A reciprocating pump having a movable part that can be slid back and forth in the movable cylinder part, and a trigger type liquid ejector that is operated at an intermediate portion located between the operation lever and the non-movable cylinder part in the movable part A split ring-shaped stopper member that restricts the rearward movement of the lever is detachably fitted, and a pair of plate-shaped knob pieces project outwardly in the radial direction on the outer peripheral surface of the stopper member. As these knob pieces Is formed such that each tip toward and away from each other, the cover portion, the holding portion stopper member removed from the intermediate portion of the movable portion is held is formed, the knob piece, the outer peripheral surface of the stopper member In the present invention, it is characterized in that it is provided on the opposite side across the central axis of the stopper member with respect to the divided portion divided in the circumferential direction .

In this invention, since the stopper member for restricting the movement toward the rear of the operation lever is detachably fitted to the intermediate portion of the movable part of the reciprocating pump, the reciprocating force is reciprocated by an external force applied to the operation lever unexpectedly. It is possible to prevent the content liquid from being ejected from the nozzle by operating the pump.
In addition, since the stopper member is formed in a split ring shape, when the stopper member is attached to and detached from the intermediate portion of the movable portion, the stopper member is elastically deformed and divided in the circumferential direction at the stopper member. This attachment / detachment can be easily performed by expanding the portion.
Further, since the holding portion is formed on the cover portion, the stopper member is held by the holding portion when the trigger liquid ejector is used by removing the stopper member from the intermediate portion of the movable portion. Therefore, it is possible to prevent the stopper member from being lost when the trigger type liquid ejector is used.
In addition, since a pair of knob pieces protrudes from the outer peripheral surface of the stopper member, after ejecting the content liquid, for example, deposits such as dust and insects adhere to the ejected portion such as the wall surface and are removed. When the necessity arises, the stopper member can be removed from the holding portion, the pair of knob pieces can be picked with fingers, the respective tip portions can be brought close to each other, the attached matter can be sandwiched, and the attached matter can be removed. Therefore, after the content liquid is ejected, it is possible to immediately remove the deposits adhering to the ejection location.

Moreover, the knob piece, the outer peripheral surface of the stopper member, so provided on the opposite side across the central axis of the stopper member relative to shed dividing portion in the circumferential direction, of the pair knobs pieces each When a pair of knob pieces are picked with a finger so that the tip portions are close to each other, the stopper member can be easily elastically deformed so that the gap between the divided portions is widened. Accordingly, the stopper member can be more easily attached to and detached from the intermediate portion of the movable portion, and the deposit can be easily and reliably sandwiched.

  According to the present invention, it is possible to suppress the loss of the stopper member, and it is possible to immediately remove the deposits attached to the ejection target portion.

A first embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the trigger type liquid ejector 1 according to the present embodiment includes an ejector body 11, a nozzle 12 provided at the front end of the ejector body 11, and the ejector body 11. And a cover portion 13 for covering.
The ejector body 11 includes an operation lever 14 that is vertically suspended at the front portion thereof, a cylinder (non-movable cylinder portion) 15 that is disposed on the rear side of the operation lever 14, and an operation lever 14. And a reciprocating pump 17 having a piston (movable part) 16 that can be slid back and forth in the cylinder 15 along with the back and forth movement.

In the present embodiment, the operation lever 14 is swingable in the front-rear direction by supporting the upper end of the operation lever 14 so as to be rotatable around an axis extending in the left-right direction perpendicular to the up-down direction and the front-rear direction. Is provided. The front portion of the piston 16 is connected to the rear side of the upper portion of the operation lever 14, so that the piston 16 is interlocked with the operation lever 14. The cylinder 15 is disposed so as to open toward the front.
In the above configuration, the inside of the cylinder 15 is pressurized and depressurized as the rear portion of the piston 16 slides in the cylinder 15 in the front-rear direction as the operation lever 14 moves back and forth.

Further, in the present embodiment, the ejector main body 11 extends in the up-down direction, and a suction cylinder portion (not shown) whose inside communicates with the inside of the cylinder 15 and the suction pipe 18 and extends forward from the suction cylinder portion. An injection cylinder (not shown) that communicates the inside of the suction cylinder and the nozzle 12.
As described above, when the inside of the cylinder 15 is pressurized, the content liquid in the cylinder 15 passes through the suction cylinder part and the injection cylinder part in this order and reaches the nozzle 12 to be ejected outside. It has come to be. When the inside of the cylinder 15 is depressurized, the content liquid in the container body (not shown) enters the inside of the cylinder 15 through the suction pipe 18 and the suction cylinder portion.

In addition, a gap in the front-rear direction is provided between the suction cylinder portion located at the rearmost of the ejector body 11 located in the cover portion 13 and the inner surface of the rear end wall 13a of the cover portion 13. ing.
Further, the lower part of the cylinder 15 and the lower part of the piston 16 are not covered with the cover part 13 and are exposed to the outside. In the standby state before the operation lever 14 is moved backward, an intermediate portion of the piston 16 between the front part connected to the operation lever 14 and the rear part located in the cylinder 15 is operated. It is located between the lever 14 and the cylinder 15, and the lower part of the intermediate part is not covered with the cover part 13 and is exposed to the outside.

  In this embodiment, a split ring-shaped stopper member 20 that restricts the movement of the operation lever 14 toward the rear is detachably fitted to the intermediate portion of the piston 16. In the illustrated example, the stopper member 20 is formed in a C shape, and the divided portion 20a divided in the circumferential direction has a circumferential gap. The stopper member 20 is sandwiched between the operation lever 14 and the cylinder 15 in the front-rear direction, so that the movement of the operation lever 14 toward the rear is restricted. A pair of plate-like knob pieces 21 project from the outer peripheral surface of the stopper member 20 toward the outer side in the radial direction. Is formed.

  In the illustrated example, the knob piece 21 is formed in a rectangular shape in plan view, the longitudinal direction thereof extends along the radial direction of the stopper member 20, and the short side direction thereof extends along the central axis O direction of the stopper member 20. Exist. Further, the knob piece 21 is provided on the outer peripheral surface of the stopper member 20 on the opposite side to the divided portion 20a with the central axis O interposed therebetween. In the illustrated example, the interval between the base ends of the pair of knob pieces 21 facing each other in the circumferential direction is smaller than the gap between the divided portions 20a.

  Further, the distance between the pair of knob pieces 21 gradually increases from the proximal end side toward the distal end side. Further, in the illustrated example, a protruding piece 22 protrudes from each portion located between the pair of knob pieces 21 and the divided portion 20 a on the outer peripheral surface of the stopper member 20. The protruding length of the convex piece 22 is shorter than the protruding length of the knob piece 21. Moreover, the stopper member 20, the knob piece 21, and the convex piece 22 are integrally formed.

Further, in the present embodiment, the cover portion 13 is formed with a holding portion 19 that holds the stopper member 20 removed from the intermediate portion of the piston 16.
In the illustrated example, the outer surface of the rear end wall 13a of the cover portion 13 is a flat surface extending along both the left-right direction and the up-down direction. A columnar or cylindrical holding portion 19 protrudes rearward from the lower portion of the outer surface of the rear end wall 13a of the cover portion 13. The stopper member 20 is detachably fitted to the holding portion 19 so that the holding portion 19 holds the stopper member 20. In the illustrated example, the stopper member 20 is held by the holding portion 19 in a state where the tip end portion of the knob piece 21 protrudes upward from the upper end of the cover portion 13. In addition, a support plate portion 13b protrudes rearward from the lower end portion of the outer surface of the rear end wall 13a of the cover portion 13. Moreover, the lower end of the holding part 19 is connected with the upper surface of this support plate part 13b.

As described above, according to the trigger type liquid ejector 1 according to the present embodiment, the stopper member 20 that restricts the movement of the operation lever 14 toward the rear can be attached to and detached from the intermediate portion of the piston 16 in the reciprocating pump 17. Therefore, the reciprocating pump 17 can be prevented from operating due to an external force applied to the operation lever 14 unexpectedly, and the liquid content can be prevented from being ejected from the nozzle 12.
Further, since the stopper member 20 is formed in a split ring shape, when the stopper member 20 is attached to and detached from the intermediate portion of the piston 16, the stopper member 20 is elastically deformed, and the divided portion of the stopper member 20 is This attachment / detachment can be easily performed by expanding 20a.

Further, since the holding portion 19 is formed on the cover portion 13, when the trigger liquid ejector 1 is used with the stopper member 20 removed from the intermediate portion of the piston 16, the stopper member 20 is held on the holding portion 19. 19 can be held, and the stopper member 20 can be prevented from being lost when the trigger type liquid ejector 1 is used.
In addition, since a pair of knob pieces 21 are provided on the outer peripheral surface of the stopper member 20, after ejecting the content liquid, for example, deposits such as dust and insects adhere to the ejected portion such as the wall surface. When it is necessary to remove the stopper member 20, the stopper member 20 is removed from the holding portion 19, the pair of knob pieces 21 are picked up with fingers, the tip portions are brought close to each other, and the attached matter is sandwiched, and the attached matter is removed. be able to. Therefore, after the content liquid is ejected, it is possible to immediately remove the deposits adhering to the ejection location.

  Further, in the present embodiment, the knob piece 21 is provided on the outer peripheral surface of the stopper member 20 on the opposite side of the divided portion 20a with the central axis O interposed therebetween. When the pair of knob pieces 21 are picked with a finger so that the parts approach each other, the stopper member 20 can be easily elastically deformed so that the gap between the divided portions 20a is widened. Therefore, the stopper member 20 can be more easily attached to and detached from the intermediate portion of the piston 16, and the adhering matter can be sandwiched easily and reliably.

  Next, a second embodiment according to the present invention will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, the description thereof will be omitted, and only different points will be described.

As shown in FIG. 3 and FIG. 4, the engaging convex piece extending substantially parallel along the knob piece 21 at each portion located between the knob piece 21 and the convex piece 22 on the outer peripheral surface of the stopper member 20. 24 protrudes separately. Note that the length of the engaging convex piece 24 is shorter than that of the knob piece 21. An engagement protrusion is formed on the surface of the engagement convex piece 24 facing the opposite side of the knob piece 21.
A through hole (holding portion) 25 a is formed in the rear end wall 25 of the cover portion 13. In the illustrated example, the inner peripheral edge of the through hole 25 a is located inside the outer peripheral edge on the outer surface of the rear end wall 25 of the cover portion 13.

Then, after the stopper member 20 is removed from the intermediate portion of the piston 16, when the pair of knob pieces 21 are inserted into the cover portion 13 from the through holes 25 a, the convex pieces 22 become the rear end walls 25 of the cover portion 13. The engaging protrusion 24 is also inserted into the through hole 25a and the engaging protrusion engages with the opening peripheral edge of the through hole 25a on the inner surface of the rear end wall 25 of the cover portion 13. The stopper member 20 removed from the intermediate portion of the piston 16 is held.
At this time, as shown in FIG. 4, there is a front-rear position between the suction cylinder portion 23 located at the rearmost of the ejector body 11 located in the cover portion 13 and the tips of the pair of knob pieces 21. A gap in the direction is provided, and among the stopper member 20, the knob piece 21, the convex piece 22, and the engaging convex piece 24, the stopper member 20 and the convex piece 22 are exposed to the outside of the cover portion 13.

  As described above, according to the trigger type liquid ejector 2 according to the present embodiment, the same effect as the trigger type liquid ejector 1 shown in FIG. 1 and FIG. When the trigger type liquid ejector 2 is used while the cover portion 13 is held, the knob piece 21 can be stored inside the cover portion 13, and the handleability of the ejector 2 can be improved. While being able to improve further, the appearance at the time of use of this ejector 2 can be improved.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the first embodiment, the holding portion 19 is provided on the outer surface of the rear end wall 13a of the cover portion 13, but instead, for example, it may be appropriately changed such as being provided on the outer surface of the upper end portion of the cover portion 13. .
Moreover, the convex piece 22 does not need to be provided.

Further, in the second embodiment, when the inner peripheral edge of the through hole 25 a is positioned inside the outer peripheral edge on the outer surface of the rear end wall 25 of the cover portion 13 and the knob piece 21 is inserted into the cover portion 13. FIG. 5 shows a configuration in which the convex piece 22 abuts on the outer surface of the rear end wall 25 of the cover portion 13. However, as shown in FIG. The recessed portions 25b may be formed separately in the respective portions connected to each other, and when the knob piece 21 is inserted into the cover portion 13 from the through hole 25a, the protruding piece 22 may be positioned in the recessed portion 25b. .
In this case, among the stopper member 20, the knob piece 21, the convex piece 22, and the engaging convex piece 24, only the portion on the divided portion 20 a side of the stopper member 20 is exposed to the outside of the cover portion 13. Can be further improved, and the appearance of the ejector 2 during use can be further improved.
Furthermore, the stopper member 20 may be stored in the cover portion 13 by making the depth of the storage recess 25b deeper than the state shown in FIG. For example, it can be removed by pinching the convex piece 22 and pulling it backward.

Further, the configuration of the ejector body 11 is not limited to the above embodiment, and may be changed as appropriate.
Further, the stopper member 20 is not limited to the above embodiment, and may be appropriately changed, for example, a U shape or a U shape.
Further, the position where the pair of knob pieces 21 are provided on the outer peripheral surface of the stopper member 20 is not limited to the above embodiment, and may be changed as appropriate.
In the second embodiment, the front-rear direction gap is provided between the suction tube portion 23 and the tip of the pair of knob pieces 21, but instead, for example, the tip portion of the knob piece 21 is replaced with a cover portion. You may insert in the clearance gap between the surface which faces the left-right direction among the inner surfaces of 13, and the suction cylinder part 23. FIG.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

  It is possible to suppress the loss of the stopper member, and it is possible to immediately remove the deposits adhering to the ejection location.

It is a side view of the trigger type liquid ejector shown as a 1st embodiment concerning the present invention. It is a perspective view of the trigger type liquid ejector shown in FIG. It is a perspective view of the trigger type liquid ejector shown as 2nd Embodiment concerning this invention. It is a partially broken top view of the trigger type liquid ejector shown in FIG. It is a perspective view of the trigger type liquid ejector shown as other embodiments concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Trigger type liquid ejector 11 Ejector main body 12 Nozzle 13 Cover part 14 Operation lever 15 Cylinder (non-movable cylinder part)
16 Piston (movable part)
17 Reciprocating pump 19 Holding part 20 Stopper member 20a Dividing part 21 Knob piece 25a Through hole (holding part)
O Center axis

Claims (1)

An ejector body, a nozzle provided at a front end of the ejector body, and a cover portion covering the ejector body,
The ejector body includes an operation lever that is vertically suspended at a front portion of the ejector body, a non-movable cylinder portion that is disposed on the rear side of the operation lever, and the non-movable cylinder portion that is moved in accordance with the back-and-forth movement of the operation lever. A reciprocating pump having a movable part that can slide back and forth in the movable cylinder part, and a trigger type liquid ejector comprising:
A split ring-shaped stopper member for restricting movement toward the rear of the operation lever is detachably fitted to an intermediate portion located between the operation lever and the non-movable cylinder portion in the movable portion,
On the outer peripheral surface of this stopper member, a pair of plate-like knob pieces projecting outward in the radial direction, and these knob pieces are formed so that the tip portions are close to and away from each other,
The cover part is formed with a holding part for holding the stopper member removed from the intermediate part of the movable part ,
The trigger-type liquid ejector characterized in that the knob piece is provided on the outer peripheral surface of the stopper member on the opposite side to the divided portion divided in the circumferential direction with the central axis of the stopper member interposed therebetween. .

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