JP2001287763A - Pump dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump dispenser made childproof and excellent in usability and appearance characteristics. SOLUTION: In the manual trigger type pump dispenser attached to a container and compressing a liquid in a cylinder through a piston 17 by the revolving force of a trigger 18 to eject the same from a rotary nozzle 22, the rotary nozzle 22 is equipped with a nozzle base 23 and the rectangular revolving body 24 revolved around the nozzle base and has the lock means 25 provided between the nozzle base 23 and the revolving body to regulate the revolution of the revolving body 24 and, at the unlocking position of the lock means 25 with respect to the revolving body 24, the flow channel 30 of the liquid ejected from the rotary nozzle 22 communicates with the dispenser.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump dispenser, and more particularly, to a trigger type pump dispenser in which liquid in a cylinder is compressed by a rotating force of a trigger and ejected from a nozzle, and a spray device provided with the same. .

[0002]

2. Description of the Related Art Conventionally, a spray container has been used for spraying a medicine or the like. As a pump dispenser 100 which is a spraying mechanism of a spray container, for example, a trigger type ejector as shown in FIG. 10 is known.

In this apparatus, an outwardly projecting wing-shaped trigger 102 is movably mounted at an appropriate position on an ejector main body 101, and the trigger 102 and a pump 103 are mechanically connected.
Then, a return spring 104 is attached to the mechanical connection between the trigger 102 and the pump 103, and the trigger 102
Thus, the piston 105 pushed by the above operation can be automatically returned.

The pump dispenser 100 has a lock mechanism for locking the trigger 102 so as not to move when the trigger 102 is not used. The lock mechanism includes a cover 107 rotatable with the nozzle 106 and a lock lever 108 projecting from the cover.

As shown in FIG. 10, when the lock lever 108 is rotated in the direction of arrow A from the unlocked state, the projection 108a at the tip of the lock lever 108 turns around the trigger 102. . Then, the protruding protrusion 108a is interposed in the gap H formed between the trigger 102 and the sprayer main body 101, so that the trigger 102 can be locked.

[0006]

In the conventional pump dispenser 100, a projection 108a at the tip of the lock lever 108 is provided so as to protrude outward. For this reason, it becomes hook-shaped and is easily caught by other members or the user's hand. Further, since the lock mechanism protrudes in this manner, it is not always possible to secure excellent design in terms of appearance.

In addition, since the lock mechanism itself has a prominent arrangement, it is particularly easy for a child to touch this part, and there is a danger that the lock may be released carelessly while touching the lock mechanism. In this case, the lock lever 108
When is rotated in the direction opposite to the arrow A, the lock is always released, that is, the probability of unlocking when the child touches it is considerably increased, that is, the child resistance is reduced.

[0008] Against this background, it is an object of the present invention to establish a child resistance and to provide a pump dispenser excellent in usability and appearance characteristics.

[0009]

Means for Solving the Problems Thus, the present inventor has:
As a result of intensive studies on such a background of the problem, it has been found that the above problems can be solved by providing a locking means inside the rotary nozzle itself, and the present invention is based on this finding. It has been completed.

That is, the present invention provides (1) a manual trigger type pump dispenser which is attached to a container, compresses a liquid in a cylinder via a piston by the rotation of a trigger, and ejects the liquid from a rotary nozzle. The nozzle includes a nozzle base and a rectangular rotating body that rotates around the nozzle base, and includes a locking unit that engages between the nozzle base and the rotating body to restrict rotation of the rotating body. A pump dispenser having a lock release position of the lock means with respect to the rotating body, wherein the flow path of the liquid ejected from the rotary nozzle is communicated.

(2) The locking means expands the other side by pressing one side of the rotating body and releases the lock by releasing the engagement between the rotating body and the nozzle base. There is a pump dispenser that is configured as such.

Further, (3) the locking means comprises:
The pump dispenser includes a pair of convex portions provided on the nozzle base and a pair of concave portions provided on the other opposite side of the rotating body corresponding to the convex portions.

(4) The locking means is
The present invention resides in a pump dispenser configured to open one of the diagonals of the rotating body by pressing one diagonal of the rotating body, thereby releasing the engagement between the rotating body and the nozzle base to release the lock.

(5) The locking means is
The present invention resides in a pump dispenser including a pair of convex portions provided on the nozzle base and a pair of concave portions provided on the other diagonal of the rotating body corresponding to the convex portions.

Further, (6), the above (1) to (5)
A spray device comprising the pump dispenser according to any one of the above.

The present invention can also adopt a configuration in which two or more selected from the above 1 to 5 are combined as long as this object is met.

According to the present invention, there is provided a lock means for restricting the rotation of the rotary body by the concave and convex engagement between the nozzle base and the rotary body. In a typical aspect of the present invention, the locking means is configured to unlock the rotating body by pressing one pair of the rotating bodies, that is, to unlock when the other pair is pressed. Can not. As a result, the child resistance function is improved, and excellent usability and appearance characteristics can be realized by providing the lock means inside the rotary nozzle.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a pump dispenser according to the present invention will be described below with reference to the drawings.
FIG. 1 shows a configuration example of a pump dispenser according to this embodiment. 2 and 3 show the general configuration. The pump dispenser is attached to a container as described later, and the liquid in the cylinder is compressed via a piston by the rotating force of a trigger, and is ejected from a rotary nozzle.

In FIG. 1, reference numeral 11 denotes a cap for screwing a pump dispenser 10 to a spray container 1 containing liquid, 12 denotes a gasket (packing), 13 denotes a cylinder housing, 14 denotes a valve case, and 15 denotes a valve case 14. , A liquid suction tube inserted into a valve case 14, 17 a piston reciprocating in a cylinder housing 13, 18 a trigger for driving the piston 17, and 19 a piston 17
A spring that resiliently biases the valve, 20 is a second valve, 2
1 is a cover.

At the tip of the pump dispenser 10, FIG.
Alternatively, as shown in FIG. 3, a rotary nozzle 22 is mounted. The rotary nozzle 22 includes a nozzle base 23 and a rectangular rotating body 24 that rotates around the nozzle base 23.

In the basic operation of the pump dispenser 10, when the trigger 18 is pulled against the elasticity of the spring 19, the first valve 15 is closed and the second valve 20 is opened, and the liquid in the cylinder housing 13 is ejected from the rotary nozzle 22. Is done. When the trigger 18 is released, the piston 1
7 returns, the first valve 15 opens, and the second valve 20 closes, so that the liquid in the spray container 1 is sucked up.

As shown in FIG. 2 and FIG.
A character mark of "ON" is written on opposing left and right side surfaces of the device 4, and a character mark of "OFF" is written on the upper and lower surfaces (in this state, the nozzle flow path is closed). These characters indicate whether or not the pump dispenser 10 can be used. When the character “OFF” is located on the upper surface of the pump dispenser 10 (the character “OFF” is also on the lower surface) as shown in FIG. The liquid flow path in 13 is closed (OFF state). When the rotary nozzle 22 is rotated by 90 ° from the state shown in FIG. 2 or FIG. 3, the character “ON” is located on the upper surface of the pump dispenser 10, and the liquid flow path communicates (ON state).

In the present invention, there is provided a lock means for restricting the rotation of the rotary body 24 by the concave and convex engagement between the nozzle base 23 and the rotary body 24, and the lock means switches between ON and OFF states. It has become. The locking means is configured to open one of the opposite sides of the rotating body 24 by pressing the other, thereby releasing the lock by releasing the engagement between the rotating body 24 and the nozzle base 23.

FIG. 4 shows the periphery of the lock means 25 in this embodiment. The locking means 25 is shown in FIG.
And a pair of concave portions 27 provided on the opposite side of the rotating body 24 corresponding to the convex portions 26. In the locking means 25, as shown in FIG. 4 (B), by pressing one side (vertical direction) of the rotating body 24 as shown by an arrow A, the protrusion 2 of the nozzle base 23 is formed at the remaining horizontal side.
6, the concave portion 27 of the rotating body 24 is detached (see FIG. 4),
The lock is released by releasing the engagement between the rotating body 24 and the nozzle base 23.

The pump dispenser 10 of the present invention is constructed as described above, and its operation will be described below.
In actual use, in the OFF state, the OFF mark is located on the upper surface as shown in FIG. 3, and the rotary nozzle 22 is locked in this state. The operation of switching from this state (initial state) to the ON state to enable use will be described with reference to FIGS. 5 is the rotary nozzle 2
FIG. 4 is a diagram illustrating an operation of the lock unit when the switching operation of the lock 2 from the OFF state to the ON state is performed, and the lower part illustrates a communication process of the corresponding liquid flow paths. Also, FIG.
FIG. 4 is a front view of the rotary nozzle 22 when a switching operation is performed.

Referring to the upper part of FIG. 5, FIG.
In FIG. 5A, the opposite side in the vertical direction on which the OFF mark of the rotating body 24 is written is strongly pinched and pressed as shown by an arrow A in FIG. In the OFF state shown in FIG. 5A, the convex portion 26 of the nozzle base 23 and the concave portion 2 of the
7 are engaged with each other (see FIG. 7). This allows
The opposite side in the left-right direction on which the ON mark is written is expanded. At the same time, the rotating body 24 is
Is released. Then, the engagement between the rotating body 24 and the nozzle base 23 is released, and the rotating body 24 becomes rotatable.

The locking means 25 is used only when the opposite side of the rotating body 24 in the vertical direction is pinched and operated as described above.
Can be unlocked. That is, when the opposite side in the left-right direction on which the ON mark of the rotating body 24 is indicated and pressed in FIG. 5A is pressed, the convex portion 26 of the nozzle base 23 and the concave portion 2 of the rotating body 24 are pressed.
Since 7 has already been engaged, even if it is pressed further, the locking state will only be strengthened and the locking means 25 cannot be unlocked. Therefore, even if a child or the like touches the rotary nozzle 22 and tries to rotate it, the rotary nozzle 22 does not rotate unless the opposite side in the vertical direction is pinched and pressed, so that the so-called child resistance function is greatly improved. Become.

After unlocking the locking means 25, FIG.
By rotating the rotary nozzle 22 as shown in FIG.
By turning 90 ° as shown in (D), it is possible to switch to the ON state. The flow path of the liquid ejected from the rotary nozzle 22 communicates with the unlocking position of the locking means 25 with respect to the rotating body 24 in this manner. Therefore, in this ON state, the trigger 18
, The liquid can be ejected from the rotary nozzle 22.

A rotary member 24 is rotatably mounted at the tip of the nozzle base 23, and ejects liquid from a liquid outlet 29 at the center of the rotary member 24. On the outer periphery of the nozzle base 23, a flow path 30 communicating with the liquid ejection port 29 is opened. The rotary body 24 has a feed hole 31 that can supply a liquid by being aligned with the flow path 30.

Referring to the lower diagram of FIG.
In the state, as shown in FIG. 5A, since the flow path 30 and the feed hole 31 do not coincide with each other, the liquid flow path is shut off, and even if a liquid pressure is applied as indicated by an arrow B, the liquid is discharged from the liquid ejection port 29. I can't squirt. As described above, the rotary nozzle 22 is
When the rotating body 24 is rotated in the order of FIGS. 5B, 5C, and 5D in order to switch from the F state to the ON state, when the rotating means 24 is rotated in the order of FIG. 30 and the feed hole 31 coincide. As a result, the flow path of the liquid to be ejected from the rotary nozzle 22 communicates, and the liquid can be ejected from the liquid ejection port 29.

Next, a second embodiment of the present invention will be described. FIGS. 8 and 9 show the periphery of the lock means 25 in the second embodiment. Locking means 25 of this example
8A, a pair of convex portions 26 provided on one diagonal of the nozzle base 23 (a diagonal on a diagonal line from the upper left to the lower right) as shown in FIG. Rotating body 2
4 and a pair of recesses 27 provided on one of the diagonal lines.

In the locking means 25, as shown in FIG. 8B, the other diagonal of the rotating body 24 (a diagonal on a diagonal line extending from the upper right to the lower left) is pressed as shown by an arrow C (note that FIG. 8B). Nothing is provided on the other diagonal line of the rotating body 24 corresponding to this diagonal), the concave portion 27 of the rotating body 24 is detached from the convex portion 26 of the nozzle base 23, and the rotating body 24
The lock can be released by releasing the engagement between the nozzle base 23 and the nozzle base 23. Also in this embodiment, the rotary nozzle 2
By rotating the rotating body 24 to switch the 2 from the OFF state to the ON state, the lock of the locking means 25 is released, and the flow path of the liquid ejected from the rotary nozzle 22 is communicated. .

That is, when the rotary nozzle 22 is rotated by 90 ° (clockwise or counterclockwise) from the state shown in FIG.
The character “ON” is located on the upper surface of the pump dispenser 10, and the state shown in FIG.
Status).

It should be noted that the present invention is not limited only to the above embodiment, and various modifications can be made within the scope of the present invention. For example, the example in which the locking means 25 includes the pair of convex portions 26 and the pair of concave portions 27 has been described.
In addition, substantially the same operation and effect can be obtained also in the case of being constituted by the recess 27. In addition, it is also possible to make the rotating body a convex part and the loose base a concave part. When the pump dispenser is attached to the liquid container, it becomes a finished product as a spray container.

[0035]

As described above, according to the present invention, in this kind of dispenser, the child resistance function is improved, and excellent usability is realized by having a locking means inside the rotary nozzle, and the usability is greatly improved. Can be improved. Further, since the locking means is not exposed to the outside, there is an advantage that the lock is not accidentally released and extremely excellent appearance characteristics can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a pump dispenser according to an embodiment of the present invention.

FIG. 2 is a front view and a side view showing a general configuration of a pump dispenser according to the embodiment of the present invention.

FIG. 3 is a top view showing a general configuration of a pump dispenser according to the embodiment of the present invention.

FIG. 4 is a diagram showing a periphery of a lock unit in the embodiment of the present invention.

FIG. 5 is a diagram illustrating an ON / OFF switching operation of a lock unit and a flow path opening / closing operation corresponding thereto in the first embodiment of the present invention.

FIG. 6 is a front view of the rotary nozzle 22 when a switching operation is performed according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line mm in FIG.

FIG. 8 is a diagram illustrating an ON / OFF switching operation of a lock unit and a corresponding flow passage opening / closing operation according to the second embodiment of the present invention.

FIG. 9 is a front view of the rotary nozzle when a switching operation is performed according to the second embodiment of the present invention.

FIG. 10 is a front view and a side sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Pump dispenser 11 ... Cap 12 ... Gasket (packing) 13 ... Cylinder housing 14 ... Valve case 15 ... First valve 16 ... Liquid suction tube 17 ... Piston 18 ... Trigger 19 ... Spring 20 ... Second valve 21 ... Cover 22 ... Rotary Nozzle 23 ... Nozzle base 24 ... Rotating body 25 ... Locking means 26 ... Protrusion 27 ... Recess 29 ... Liquid ejection port 30 ... Flow path 31 ... Supply hole

Claims (6)

[Claims] 1. A manually-triggered pump dispenser which is attached to a container, compresses a liquid in a cylinder through a piston by a rotating force of a trigger, and ejects the liquid from a rotary nozzle, wherein the rotary nozzle comprises a nozzle base and the nozzle base. With a rectangular rotating body that rotates around the base,
A locking unit that is engaged between the nozzle base and the rotating body to restrict rotation of the rotating body; and at a lock release position of the locking means with respect to the rotating body, the liquid ejected from the rotary nozzle is A pump dispenser characterized in that the flow passages communicate with each other. 2. The lock means is configured to open one of the opposite sides of the rotating body by pressing one of the opposite sides of the rotating body and release the engagement between the rotating body and the nozzle base to release the lock. The pump dispenser according to claim 1, wherein 3. The lock means includes a pair of convex portions provided on the nozzle base, and a pair of concave portions provided on the other opposite side of the rotating body corresponding to the convex portions. The pump dispenser according to claim 1, wherein: 4. The lock means opens one diagonal of the rotary body by pressing one diagonal of the rotary body, and releases the lock by releasing the engagement between the rotary body and the nozzle base. The pump dispenser according to claim 1, wherein the pump dispenser is configured. 5. The locking means includes a pair of convex portions provided on the nozzle base, and a pair of concave portions provided on the other diagonal of the rotating body corresponding to the convex portions. The pump dispenser according to claim 1, wherein: 6. A spray device comprising the pump dispenser according to claim 1.