JP3565554B2 - Trigger sprayer - Google Patents

Description

【００１７】
【発明の効果】
以上のように本発明によれば、正倒立兼用のトリガー式スプレイヤーにおいて、容器本体から取外したときの液ダレを防止できる。
【図面の簡単な説明】
【図１】図１はトリガー式スプレイヤーを示す模式図である。
【図２】図２はディップチューブの内部の液の空気置換性を示す模式図である。
【符号の説明】
１ 容器本体
１０ トリガー式スプレイヤー
１１ スプレイヤー本体
１２ ディップチューブ
１３ 正立用吸引口
１３Ａ 切除部
１４ 倒立用吸引口[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a trigger type sprayer.
[0002]
[Prior art]
As a trigger type sprayer that can be used both upright and upside down, there is a trigger type sprayer having an upright suction port at the tip of a dip tube connected to the sprayer body and an upside down suction port at the base end side of the dip tube.
[0003]
[Problems to be solved by the invention]
When the container body in which the trigger type sprayer is used is erected, even if the remaining amount of the liquid content falls below the tip of the dip tube, the liquid inside the dip tube is closed because the inverted suction port is closed. It is not discharged as shown in FIG. Then, when refilling the container body with the liquid content, if the trigger type sprayer is removed from the container body and placed horizontally or turned upside down, the ball valve that had closed the upside-down suction port at the time of upright opening will open and the dip tube The liquid inside is replaced with air for the first time, causing liquid dripping.
[0004]
An object of the present invention is to prevent liquid dripping when detached from a container body in a trigger type sprayer that can be used both upside down.
[0005]
[Means for Solving the Problems]
According to the present invention, a dip tube is connected to a sprayer main body detachably attached to a container main body so as to be inclined with respect to a vertical direction, and an erecting suction port is provided at a tip of the dip tube. Is a trigger type sprayer provided with an inverted suction port on the base end side of the dip tube, wherein a wall portion on an end upper wall portion of the dip tube opposite to a bottom surface of the container body is cut off.
[0006]
The dip tube of the present invention is connected so as to be inclined with respect to the vertical direction on the bottom surface of the container. Here, the term “inclination” refers to (1) when connecting a straight dip tube to the sprayer body by tilting it, (2) when connecting a U-shaped dip tube to the sprayer body, and (3) when forming a curve. In the case where a dip tube having a curve is connected to the sprayer body, either of them may be used.
[0007]
The upper end of the dip tube refers to the dip tube wall opposite to the bottom surface of the container body when the trigger type sprayer is in the upright state.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, the trigger type sprayer 10 connects a dip tube 12 to an intake 11A of a sprayer main body 11 which is detachably attached to the container main body 1 with a cap 10A. A suction port 13 is provided, and an inverted suction port 14 is provided on the base end side of the dip tube 12.
[0009]
The sprayer main body 11 has a trigger 11B, and by operating the trigger 11B, a built-in pump (not shown) is driven to suck a content liquid such as a deodorant cleaning agent of the container main body 1 from the dip tube 12, and a nozzle is provided. Discharge from 11C.
[0010]
The sprayer body 11 is provided with a ball valve 15 at the inverted suction port 14 of the dip tube 12, and when the container body 1 is erected, the ball valve 15 is seated on the valve seat 16 to close the inverted suction port 14 (FIG. 1). When the container body 1 is inverted, the ball valve 15 is dropped from the valve seat 16 to the valve support portion 17 so that the inverted suction port 14 is electrically connected to the inside of the container body 1.
[0011]
Here, in the trigger type sprayer 10, the upper wall portion of the tip of the dip tube 12 where the erecting suction port 13 is provided is cut off to form a cutout portion 13A.
[0012]
Therefore, according to the present embodiment, the following operations are provided.
{Circle around (1)} When the remaining amount of the content liquid becomes equal to or less than the tip of the dip tube 12, the cutout portion 13A of the tip upper side wall portion provided with the erecting suction port 13 of the dip tube 12 is located above the liquid level. Then, air enters the inside of the dip tube 12 from the cut portion 13A (FIG. 2A). Thus, the liquid inside the dip tube 12 is replaced with air and discharged into the container body 1 (FIG. 2B). Thereafter, even when the sprayer 10 is removed from the container body 1 and placed sideways at the time of refilling, the inside of the dip tube 12 is no longer empty and no liquid dripping occurs.
[0013]
(2) When the tip of the dip tube 12 is in contact with the inner surface of the container main body 1 when the sprayer 10 is attached to the container main body 1, the liquid inside the dip tube 12 that is replaced with air in the above-mentioned (1) becomes the container. It is easily transmitted to the inner surface of the main body 1 and discharged.
[0014]
{Circle around (3)} When the surface tension of the content liquid is 1 to 50 mN / m, if the inner diameter of the dip tube 12 is φ2 to 10 mm, more preferably φ3.5 to 5.0 mm, the tube axis of the distal excision part 13A When the excision length L along the direction is 3 mm or more, more preferably 5 to 10 mm, the air replacement property of the above (1) can be improved.
[0015]
When the content liquid is a cleaning agent and the inner diameter of the dip tube 12 is 3.5 mm, the cut length L of the cut portion 13A along the axial direction of the dip tube 12 is changed to 1.0 mm, 3.0 mm, and 50.0 mm. Then, as a result of comparing the quality of the liquid discharging property, Table 1 was obtained. According to Table 1, it is recognized that by setting the cut length L of the cut portion 13A to 3.0 mm or more, the air replacement property of the dip tube 12 can be improved and the liquid discharge property can be improved. However, since the cut length L of the cut portion 13A regulates the remaining level of the content liquid in the container body 1, the cut length cannot be excessively large, and is preferably about 30 mm at the maximum.
[0016]
[Table 1]

[0017]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent liquid dripping when the trigger type sprayer, which is also used as an inverted head, is detached from the container body.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a trigger type sprayer.
FIG. 2 is a schematic view showing the air exchangeability of a liquid inside a dip tube.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 10 Trigger type sprayer 11 Sprayer main body 12 Dip tube 13 Upright suction port 13A Cutting part 14 Inversion suction port

Claims (3)

A dip tube is connected to the sprayer body that is attached to and detached from the container body so as to be inclined with respect to the vertical direction, and an upright suction port is provided at the tip of the dip tube, and an inverted suction port is provided at the base end side of the dip tube. A trigger type sprayer to be provided,
A trigger type sprayer in which the upper end wall of the dip tube and the wall opposite to the bottom of the container body are cut off. The trigger type sprayer according to claim 1, wherein a tip of the dip tube is in contact with an inner surface of the container body . The surface tension of the content liquid is 1 to 50mN / m When the inside diameter of the dip tube is Two ~ 10mm The resection length along the tube axis direction of the distal resection is 3mm ~ 10mm The trigger type sprayer according to claim 1 or 2, wherein

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