JP2000005656A - Trigger-type liquid jetting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent trigger operation by mischief of children or careless liquid jetting. SOLUTION: From an injection pipe 3, a guide plate 10 is installed vertically along the front face of a trigger 4; the second open hole 11 communicating to the first open hole 8 formed on the trigger 4 is formed on the guide plate 10; a side plate 13 is installed so that it protrudes from the left and right sides of a front plate 12 freely movable up-and-down along the front face of the guide plate 10, forming a sliding section 14 of a plain square U shape so that the guide plate 10 is fastened freely movably up-and-down by both left and right side plates of the sliding section 14; a locking rod 16 is protruded backwardly from the front plate 12 through the second open hole 11 and the first open hole 8; a connecting nail 17 is protruded from the rear end of the locking rod 1; and the locking rod has a connecting position at which the connecting nail 17 connects with the lower rear edge of the first open hole 8 to make the backward drawing of the trigger 4 impossible and a nonconnecting position at which the connecting nail 17 is apart from the lower rear edge of the first open hole 8 to make the backward drawing of the trigger 4 possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a trigger type liquid ejection container.

[0002]

2. Description of the Related Art As shown in, for example, Japanese Utility Model Application Laid-Open No. 6-31854, a main cylinder is erected from a mounting cylinder fitted to the mouth and neck of a container body, a cylinder is mounted from the front of the main cylinder, and an upper end of the main cylinder. , The front end of the plunger fitted into the cylinder is connected to the upper rear of the vertically mounted trigger which is pivotally attached to the front of the injection cylinder, and the trigger is urged forward. A trigger-type liquid ejection container is known in which a liquid in a container is sucked into a cylinder by swinging a trigger back and forth, and the liquid in the cylinder is ejected from a front end of an injection cylinder.

As shown in Japanese Utility Model Application Laid-Open No. 62-187665, nozzle caps having liquid ejection holes are rotatably fitted to the front end of the injection cylinder, and the fitting portions of the nozzle cap with respect to the injection cylinder are fitted to these fitting portions. It is also known to provide a liquid passage opening / closing mechanism that can rotate and allow the injection cylinder hole and the liquid ejection hole of the injection cylinder to communicate with each other and to shut off.

[0004]

In the former known example, even if the trigger is inadvertently pulled, the liquid is ejected from the front end of the injection cylinder, so that such an unexpected liquid ejection is prevented. It is desired to provide a safety device, and the latter known example is provided as such a safety device, but even in the latter known example, if the trigger is forcibly pulled with the safety device applied, When the trigger and the plunger are slightly retracted and advanced, the liquid in the container is sucked, and as a result, excessive liquid flows into the liquid inflow portion from the suction valve to the liquid passage opening / closing mechanism formed by the front part of the injection cylinder and the nozzle cap. When the opening / closing mechanism is opened by turning the nozzle cap in this state, there is a risk that the liquid that has been excessively filled will be ejected from the liquid ejection hole. The present invention is provided to prevent the above-mentioned inadvertent ejection of the liquid by providing a safety device that disables the trigger operation.

[0005]

As a first means, a main cylinder is erected from the inside of a mounting cylinder 1 fitted to the mouth and neck of a container body, a cylinder 2 is arranged from the front of the main cylinder, and a cylinder is arranged from an upper end of the main cylinder. Injection cylinder 3
The front end of the plunger 5 fitted into the cylinder 2 is connected to the upper rear part of the trigger 4 which is respectively protruded forward and pivotally attached to the front part of the injection cylinder, and the trigger 4 is attached to the front. In the trigger type liquid ejector provided so that the liquid in the container is sucked into the cylinder 2 by swinging the trigger back and forth and the liquid in the cylinder can be ejected from the front end of the injection cylinder 3, the trigger 4 is connected to the front wall 6. The side wall 7 has a U-shaped cross section projecting rearward from the left and right sides of the front wall 6.
A through hole 8 is drilled, and a guide plate 10 is vertically provided along the front surface of the upper part of the trigger 4 from the lower part of the front end of the injection cylinder 3, and communicates with the first through hole 8 at the lower part of the guide plate 10. (2) A through hole 11 is formed, and a side plate 13 protrudes rearward from the left and right sides of a vertically movable front plate 12 along the front surface of the guide plate 10 to form a flat U-shaped sliding portion 14. The guide plate 10 is vertically slidable from the left and right sides of the front plate 12 so as to be able to move up and down in the left and right directions and cannot be pulled out forward.
A lock rod 16 is inserted through the through-hole 11 and the first through-hole 8 to protrude rearward, and an engaging claw 17 is protruded from the rear end of the lock rod 16 to provide the lock rod 16 and the sliding part 14. And a lock member 18 is formed, and the engaging claw 17 of the lock rod 16 is moved up and down with respect to the guide plate 10 by the first movement of the trigger 4.
The lock bar 16 of the lock member 18 is formed so as to be engageable with the upper rear edge or the lower rear edge of the through hole 8, and the engaging claw is engaged with the upper rear edge or the lower rear edge of the first through hole 8. An engagement position at which the trigger 4 cannot be pulled rearward, and the engaging claw 17 is vertically disengaged from the upper rear edge or lower rear edge of the first through hole 8 to pull the trigger 4 rearward. And a disengaged position to allow.

As a second means, a nozzle cap 19 having the above-mentioned first means and having a liquid ejecting portion rotatably fitted to the front end of the injection cylinder 3 is fitted to these fitting portions.
The rotation of the nozzle cap 19 with respect to the injection cylinder 3 causes the injection cylinder 3
And a liquid passage opening / closing mechanism that can freely open and close the injection cylinder hole and the liquid ejecting portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a trigger type liquid ejection container according to the present invention will be described below with reference to the drawings.
First, a known trigger type liquid ejection container will be briefly described. A main cylinder (not shown) is erected from the inside of a mounting cylinder 1 fitted to a container body neck (not shown), and a cylinder 2 is mounted from the front of the main cylinder. And a front end of a plunger 5 fitted into the cylinder 2 at the upper rear side of a trigger 4 vertically protruding from the upper end of the main cylinder and projecting from the upper end of the injection cylinder 3, respectively. And the trigger 4 swings back and forth to suck the liquid in the container into the cylinder 2 and eject the liquid in the cylinder from the front end of the injection cylinder 3. In addition,
The trigger 4 is biased forward by a spring for biasing a plunger 5 provided in the cylinder 2 via a plunger or by a spring having one end attached to a member other than the trigger 4 such as a main cylinder.

In the present invention, the trigger 4 is formed in a U-shaped cross section in which the side wall 7 projects rearward from the left and right sides of the front wall 6, and the first through hole 8 is formed in the upper part of the front wall 6. Injection cylinder 3
An elongated guide plate 10 is vertically suspended from the lower surface of the base of the nozzle cap fitting cylinder 9 forming the front end, and the rear surface of the guide plate 10 is brought into contact with the upper front surface of the trigger 4 and the guide plate 1
A second through-hole 11 is formed in the lower part of the tube 0 so as to communicate with the first through-hole 8. The first through hole 8 and the second through hole 11 are located at substantially the same height, and their vertical lengths are substantially equal.

Further, the side plate 13 projects rearward from the left and right of the front plate 12 slidable in the vertical direction along the front surface of the guide plate 10 to form a sliding portion 14 having a U-shaped cross section, and the inner surfaces of the left and right side plates 13. An engaging ridge 15 extending in the up-down direction is formed. The left and right side plates 13 slidably hold the left and right side surfaces of the guide plate 10, and the engaging ridge 15 is slidably engaged with the rear surface of the guide plate 10.

On the other hand, from the upper rear surface of the front plate 12, the second through holes 1 are formed.
1 and the first through hole 8, a lock bar 16 is protruded rearward, and an engagement claw 17 that can be engaged with the lower rear edge of the first through hole 8 is protruded from the rear end of the lock bar. . A lock member 18 is formed by the lock bar 16 having the engagement claws 17 and the sliding portion 14. In the illustrated example, the engaging claw 17 can be engaged with the lower rear edge of the first through hole 8 as described above. However, the present invention is not limited to this. Good.

The nozzle cap 1 having a liquid ejection hole rotatably to the front end of the injection cylinder 3 as described in claim 2.
And a liquid passage opening / closing opening / closing port that allows the injection cylinder hole and the liquid ejection hole of the injection cylinder 3 to communicate with each other by turning the nozzle cap 19 relative to the injection cylinder 3 and to shut off these fitting portions. It is also possible to provide a mechanism. This liquid passage opening / closing mechanism is known, for example, as described in Japanese Utility Model Application Laid-Open No. 62-187665. In the figure, reference numeral 20 denotes a suction pipe communicating with a main cylinder (not shown), and the lower end thereof reaches the bottom of a container (not shown).

Next, the operation of the present embodiment will be described.
When the lock member 18 is located at the upper limit position with respect to the guide plate 10, as shown in FIG.
Is spaced upward from the lower trailing edge of the
Is pulled back, the lock bar 16 relatively gets out of the first through hole 8, so that the trigger 4 can be pulled rearward.

In order to prevent the trigger 4 from being pulled backward, the lock member 18 may be lowered with respect to the guide plate 10 so as to be located at the lower limit position. Then, as shown in FIG. Since the pawl 17 engages with the lower rear edge of the first through hole 8,
The rearward pulling of the trigger 4 becomes impossible.

It is also possible to shut off the injection cylinder hole of the injection cylinder 3 and the liquid ejection hole of the nozzle cap 19 by a liquid passage opening / closing mechanism (not shown). In this case, however, the trigger 4 is moved slightly back and forth. It is not impossible to oscillate, and if the trigger 4 is oscillated in the shut-off state by the liquid passage opening / closing mechanism, excessive filling occurs, and when the shut-off is released by communicating the liquid ejection hole with the injection cylinder hole. Although the problem that the liquid is ejected occurs, the lock member 1
If the trigger 4 cannot be pulled by the trigger 8, such a situation can be prevented.

[0015]

According to the first aspect of the present invention, the trigger type liquid ejection container has a lock member capable of fixing the trigger to the guide plate, so that the trigger cannot be pulled backward when not in use. Therefore, it is possible to prevent spouts other than the original purpose such as children's mischief.

In the trigger type liquid ejection container according to the second aspect, since the pulling of the trigger to the rear can be disabled, the trigger of the trigger after the liquid ejection hole and the injection cylinder hole are shut off by the liquid passage opening / closing mechanism. It is possible to prevent a situation such as an unexpected ejection caused by overfilling caused by a slight swing.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a main part of a trigger-type liquid ejection container according to the present invention and showing a state in which a rearward trigger can be pulled.

FIG. 2 is a partially cutaway side view showing a state when the rear of the trigger cannot be pulled.

FIG. 3 is an overall perspective view of the same except a container body.

FIG. 4 is a sectional view taken along the line XX of FIG. 3;

FIG. 5 is an exploded perspective view showing a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting cylinder 2 Cylinder 3 Injection cylinder 4 Trigger 5 Plunger 6 Front wall 7 Side wall 8 First through hole 10 Guide plate 11 Second through hole 12 Front plate 13 Side plate 14 Sliding part 16 Lock bar 17 Engaging claw 18 Lock member 19 Nozzle cap

Claims (2)

[Claims] 1. A main cylinder is erected from the inside of a mounting cylinder 1 fitted to the mouth and neck of a container body, and a cylinder 2 is protruded forward from a front surface of the main cylinder and an injection cylinder 3 is protruded from an upper end of the main cylinder. Further, a front end of a plunger 5 fitted into the cylinder 2 is connected to an upper rear portion of a trigger 4 which is pivotally attached to a front portion of the injection cylinder, and the trigger 4 is urged forward, so that a front-rear direction of the trigger is provided. In a trigger type liquid ejector provided so that the liquid in the container is sucked into the cylinder 2 by swinging and the liquid in the cylinder can be ejected from the front end of the injection cylinder 3, the trigger 4 is moved from the left and right sides of the front wall 6 to the rear side wall 7. A first through hole 8 is formed in the upper part of the front wall 6 so as to have a U-shaped cross section projecting.
A guide plate 10 is vertically provided along the front surface of the upper part of the trigger 4 from the lower part of the front end of the injection cylinder 3 and communicates with the first through hole 8 at the lower part of the guide plate 10 to form a second through hole. 11, a side plate 13 protruding rearward from the left and right sides of a front plate 12 which can move up and down along the front surface of the guide plate 10 to form a flat U-shaped sliding portion 1.
4, the guide plate 10 is vertically slidably movable in the left and right directions by the left and right side plates of the sliding portion and cannot be pulled out forward, and the second through hole 11 and the first through hole 11 are formed from the rear surface of the front plate 12.
A lock rod 16 is inserted through the through hole 8 to project rearward, and an engaging claw 17 is projected from the rear end of the lock rod 16 to lock the lock member 18 with the lock rod 16 and the sliding portion 14. Forming
The locking claw 17 of the lock bar 16 is formed so as to be engageable with the upper rear edge or the lower rear edge of the first through hole 8 of the trigger 4 by the vertical movement of the lock member with respect to the guide plate 10. The rod 16 has an engagement position at which the engaging claw is engaged with the upper rear edge or the lower rear edge of the first through hole 8 to disable the rearward pulling of the trigger 4, and the upper rear edge of the first through hole 8. Or a non-engagement position in which the engaging claw 17 is disengaged in the vertical direction from the lower rear edge to enable the trigger 4 to be pulled rearward. 2. A nozzle cap 19 having a liquid ejecting portion is rotatably fitted to the front end of the injection cylinder 3, and the injection cylinder 3 is provided in these fitting portions by the rotation of the nozzle cap 19 with respect to the injection cylinder 3. 2. The trigger type liquid ejection container according to claim 1, further comprising a liquid passage opening / closing mechanism capable of connecting and disconnecting the injection cylinder hole and the liquid ejection unit.