JPH1176885A - Spray container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent liquid from leaking from a ventilation passage by installing part of a ventilation route for introducing outside air into a container main body to pass through a level equal to or above the level of a horizontal surface including the cylinder axis of a pump with a trigger. SOLUTION: A trigger sprayer 13, in order to lift the negative pressure of a container main body 11 by having sucked the contents of the main body 11 during the operation of a trigger 25, is equipped with an air ventilation route 40. The route 40 is composed of a sprayer main body side passage 41 of a sprayer main body 14 and the piston side passage 42 of a piston 27, and the passage 42 is installed in a level above the level of a horizontal surface H including the axis of the cylinder 26 of a pump 15. In this way, liquid can be prevented from leaking from the ventilation route 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray container for liquids such as shampoos, detergents, chemicals, sizing agents and emulsions.

[0002]

2. Description of the Related Art As a spray container, there is one disclosed in Japanese Utility Model Publication No. 7-16051. In this prior art spray container, a trigger sprayer is attached to the mouth of the container body, and the trigger sprayer is attached to the sprayer body,
It has a pump provided in the sprayer main body, a trigger rotatably provided in the sprayer main body, a liquid passage tube provided in the sprayer main body, and a nozzle provided in the sprayer main body. . Then, the pump is provided with a piston operated by a trigger so as to be reciprocally movable in the cylinder. The liquid material in the container body is sucked into the cylinder of the pump by the liquid material suction operation of the trigger, and the liquid material discharge operation of the trigger is performed by the trigger. The liquid in the cylinder can be ejected from the nozzle.

[0003] In this prior art spray container, the negative pressure inside the container body due to the liquid material in the container body being sucked into the cylinder of the pump by the liquid material suction operation of the trigger is released. And an air replacement path for guiding outside air into the container body. This air replacement path is formed so as to penetrate inside and outside the thickness of the lower part of the cylinder of the sprayer body, and the piston is drawn into the cylinder by a certain amount or more by operation of the trigger, and the replacement path formed through the cylinder faces the external space. Thus, outside air can be introduced into the container body.

In the prior art spray container, the sprayer body includes a pump housing having a pump,
It is configured to have a liquid passage sealed to the liquid passage portion of the pump housing and attached to the mouth of the container body. The above-mentioned air replacement path is constituted by a liquid passage side passage and a pump housing side passage (cylinder passage formed by the pump housing), and the passage between the liquid passage side passage and the liquid passage portion of the pump housing. Outside the sealing portion (hereinafter, referred to as a first sealing portion), a second sealing portion between the pump passage and the liquid passage adjacent to the first sealing portion is used for sealing. I have.

[0005]

However, the prior art has the following problems. An air replacement path for performing air replacement by pulling a trigger is provided below the cylinder of the sprayer body. Therefore, when the trigger is operated by tilting the container body forward, the liquid level of the liquid material in the container body reaches the side of the air replacement path at the bottom of the cylinder, and the liquid material leaks from the air replacement path to the external space. There is a risk of doing so.

[0006] When the sprayer body is composed of a liquid passing through the mouth of the container main body and a pump housing, the pump housing and the liquid passing through are the first seal that seals the liquid passing section of the pump housing. It is sealed at two places: a fitting part and a second sealing part that seals the air replacement path. Therefore, the appearance of the sprayer body becomes large due to having two sealing portions, and it is difficult to make the sprayer compact.
It is necessary to form a liquid-tight structure with one sealing portion, and there is a disadvantage that the configuration becomes complicated.

An object of the present invention is to provide a spray container,
An object of the present invention is to prevent liquid leakage from an air replacement path when air is introduced to introduce outside air into a container body during a trigger operation.

Another object of the present invention is to simplify the liquid-tight structure of the sprayer body and to make the appearance of the sprayer body compact.

[0009]

According to the first aspect of the present invention, a pump with a trigger is provided on an upper part of a container body, and a liquid material in the container body is sucked into a cylinder of the pump by a liquid material suction operation of the trigger. A spray container having an air replacement path that guides outside air into the container body while operating the trigger, while enabling the liquid material in the cylinder to be ejected from the nozzle portion by the liquid material discharging operation of the trigger, At least a part of the air replacement path is provided so as to pass through a level higher than a level of a horizontal plane H including a cylinder center axis of the pump.

According to a second aspect of the present invention, a trigger sprayer is mounted on an opening of a container body, and the trigger sprayer includes a sprayer body, a pump provided on the sprayer body, and a sprayer body. A trigger provided rotatably on the main body, a fluid passage tube provided on the sprayer main body, and a nozzle provided on the sprayer main body, and a piston operated by the trigger of the pump is reciprocally movable into the cylinder. A liquid material in the container body is sucked into the cylinder of the pump by the liquid material suction operation of the trigger, and the liquid material in the cylinder can be ejected from the nozzle portion by the liquid material discharge operation of the trigger,
What is claimed is: 1. A spray container comprising an air replacement path for guiding outside air into a container body when a trigger is operated, wherein said air replacement path comprises a sprayer body side passage and a piston side passage, and movement of a piston by operation of a trigger. In the process, the sprayer main body side passage and the piston side passage can be connected to each other, and at least a part of the air replacement passage is provided so as to pass through a level higher than a level of a horizontal plane H including a cylinder center axis of the pump. It is made to become.

According to a third aspect of the present invention, in the second aspect of the present invention, the sprayer main body side passage is erected at the center of the cylinder to support the center cylinder of the piston. The piston guide is provided in a piston guide, and the piston-side passage is provided in a central cylindrical portion of the piston.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the sprayer body is further sealed to a pump housing having a pump and a liquid passage portion of the pump housing. And a liquid passage attached to the mouth of the container main body, and the sprayer main body side passage comprises a liquid passage side passage and a pump housing side passage communicating with each other, wherein the liquid passage side passage is formed by the liquid passage and the pump. The housing passes through a region in the liquid passage surrounded by a sealing portion with the liquid passage portion of the housing.

According to the first aspect of the present invention, the following operations are provided. At least a part of an air replacement path for performing air replacement by pulling a trigger is provided so as to pass through a level higher than a level of a horizontal plane H including a cylinder center axis of the pump. Therefore, even when the container body is used with the container body tilted forward, the liquid level of the liquid material in the container body does not reach the portion of the air replacement path which is higher than the level of the horizontal plane H including the cylinder center axis. This allows the container body to tilt forward when used.
No liquid leakage from the air displacement path occurs.

According to the second and third aspects of the present invention, the following operations are provided. During the movement of the piston by the operation of the trigger, the passage on the sprayer body side and the passage on the piston side that constitute the air replacement path are conducted, and the outside air is introduced into the container body, based on the suction of liquid from the container body. Release the negative pressure inside the container body. At this time, at least a part of the air replacement path is provided so as to pass through a level higher than the level of the horizontal plane H including the center axis of the pump cylinder. Does not reach the portion of the air replacement path which is higher than the level of the horizontal plane H including the cylinder center axis. Thus, when the container body is used forwardly, no liquid leaks from the air replacement path.

When the container body is turned over when the trigger is not operated and a liquid material enters the sprayer body side passage which constitutes the air replacement passage from the container body, the sprayer body side passage at this stage is at the piston side. Since it is not conducted to the passage, it is in a closed state with respect to the outside air side, and the liquid material stops in the middle of the sprayer body side passage and does not leak to the outside. Then, the liquid material stopped at the intermediate portion of the sprayer main body side passage is collected toward the container main body when a negative pressure is applied to the container main body by operating the trigger.

According to the present invention, there is provided the following operation. When the sprayer main body is composed of the liquid passing through the mouth of the container main body and the pump housing, the pump housing and the liquid passing through are sealed by the only sealing portion that seals the liquid passing through the pump housing. Be worn. That is, the liquid passage that forms the air replacement path with the liquid passes through a region in the liquid flow surrounded by the sealing portion around the liquid passing portion of the pump housing. There is no need to provide and seal. For this reason, the appearance of the sprayer main body can be made compact by requiring only one sealing portion, and a liquid-tight structure can be formed by one sealing portion, and the liquid-tight structure of the sprayer main body can be simplified. Can be planned.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a first embodiment, FIG. 2 is a schematic diagram showing a conductive state of an air replacement path of the first embodiment, and FIG. FIG. 4 is a schematic diagram showing a second embodiment, and FIG. 5 is a schematic diagram showing a third embodiment.

(First Embodiment) (FIGS. 1 to 3) As shown in FIG. 1, a spray container 10 has a trigger sprayer 13 attached by a cap 12 screwed into an opening 11A of a container body 11. ing. The trigger sprayer 13 includes a sprayer body 14 having a pump housing 16 provided with a pump 15 and a liquid passage 17 which is fitted and sealed in a liquid passage portion 16A of the pump housing 16.
It is composed of Reference numeral 16B denotes a liquid sealing attachment portion between the pump housing 16 and the liquid passage 17. Then, the passing liquid 17
Of the lower flange portion 17A by the cap 12 described above.
It is fixedly held in the opening 11A of the container body 11.

The liquid passage 17 has a liquid passage tube 18 fitted into the lower end of the liquid passage 17B, and has a ball-shaped inlet check valve 19 and a double cavity inside the liquid passage 17B. And a retractable output side check valve 20 made of an elastic body.
Then, the liquid 17 is passed through the inlet check valve 19 and the outlet check valve 2.
In addition to the communication passage 21 that communicates the liquid passage 17B between the cylinders 26 with the cylinder 26 of the pump 15 to be described later, the liquid passage portion 16A on the outlet side from the valve body 19A of the inlet check valve 19 is connected to the outlet check valve. A communication path 22 is provided that communicates with a discharge path 29 described later via the 20 valve bodies 20A.

The inlet-side check valve 19 (a) is seated on the inlet-side valve seat 23A provided in the liquid 17 through the ball-shaped valve body 19A by gravity in the free state, and closes the liquid passage 17B. )
The liquid passage 17B is opened by the suction pressure of the pump 15, so that the contents in the container body 11 can be sucked into the cylinder 26 side.
The outlet-side check valve 20 has the upper part of the double-cavity fixed to the pump housing 16. (A) In a free state, the valve body 20 </ b> A is moved by the elastic force of the double-cavity to the pump housing 16.
The outlet valve seat 23B provided on the
Is closed, and (b) the liquid passing portion 16A is discharged by the discharge pressure of the pump 15.
To discharge the contents on the side of the cylinder 26 to the side of the discharge path 29 so that the contents can be ejected from a nozzle 31 described later.

The trigger sprayer 13 has a trigger 25 at the lower part on the front side of the pump housing 16.
Then, the pump 15 forms a cylinder 26 at the front of the liquid passage 17 in the pump housing 16, and a piston 27 slidably inserted into the cylinder 26 is used as a trigger 2.
5 enables pressurization. Piston 27
The central cylinder 27 is attached to a piston guide 16C which is provided upright from the pump housing 16 at the center of the cylinder 26.
A is supported, and a lip portion 27 </ b> B is slid on the inner surface of the cylinder 26, and a distal end connecting portion 27 </ b> C is connected to the trigger 25. Reference numeral 28 denotes a spring that is built in the cylinder 26 and resiliently moves the piston 27 toward the trigger 25. As described above, the cylinder 26 communicates with the liquid passage 17B of the liquid 17 through the communication passage 21. The piston 27 compresses the cylinder 26 by the pressurizing operation of the trigger 25 (liquid discharging operation), and generates the above-described discharge pressure in the cylinder 26. Further, the piston 27 is moved to the cylinder 26 by the release of the pressurizing operation of the trigger 25 (liquid material sucking operation).
To generate the aforementioned suction pressure in the cylinder 26.

The trigger sprayer 13 has a discharge passage 29 above the pump housing 16. Discharge path 2
9 communicates with the liquid passage 16A of the pump housing 16 via the communication passage 22 as described above. The trigger sprayer 13 has a discharge nozzle 31 mounted on the front surface of the discharge path 29.

The discharge nozzle 31 is connected to the pump housing 16.
Is rotatably engaged with a projecting ring-shaped support cylindrical portion 32A of a nozzle mounting member 32 fitted to the front surface of the nozzle mounting member 32. The discharge nozzle 31 rotates around the support cylinder 32A, and can be selectively set to one of (A) a bubble discharge position, (B) a mist discharge position, and (C) a discharge stop position.

However, when the trigger 25 is operated, the trigger sprayer 13 pulls the container body 1 due to the contents of the container body 11 being sucked into the cylinder 26 of the pump 15.
In order to release the negative pressure of the container 1, an air replacement path 40 for introducing outside air into the container body 11 is provided.

The air replacement path 40 is provided in the sprayer body 1
4 (the pump housing 16 and the liquid passage 17), the sprayer body side passage 41, and the piston 27 passage 4
Consists of two. The sprayer main body side passage 41 is provided so as to communicate with the container main body 11 along a portion where the liquid passage tube 18 of the liquid passage 17 is fitted.
1A and the piston guide 16C of the pump housing 16
And the pump housing side passages 41B and 41C provided in the pump housing. Further, the piston-side passage 42 is
At the center tube portion 27A. Then, during the movement of the piston 27 by the operation of the trigger 25, the pump housing side passage 41B connected to the liquid passage passage 41A is temporarily moved to the piston 27 so that the sprayer body side passage 41 and the piston side passage 42 can be conducted. The piston guide 1 is opened toward the in-cylinder space of the central cylindrical portion 27A, and communicates with the pump housing-side passage 41C connected to the in-cylinder space of the central cylindrical portion 27A.
A groove is formed in the outer peripheral portion of 6C so that the pump housing-side passage 41C communicates with the piston-side passage 42 of the piston 27 at a specific position. FIG.
2 shows that the air replacement path 40 is non-conductive at the start side of the trigger 25, FIG. 2 shows that the air replacement path 40 is conductive at a specific intermediate position of the trigger 25, and FIG. It is. The conduction period between the sprayer main body side passage 41 and the piston side passage 42 is set by adjusting the groove length L (FIG. 1) of the pump housing side passage 41C where the piston side passage 42 is interconnected.

At this time, the piston side passage 42 and the like which are a part of the air replacement passage 40 are provided at a level higher than the level of the horizontal plane H including the central axis of the cylinder 26 of the pump 15. Note that the piston side passage 42 of the air replacement passage 40 is
Pump housing side passage 41C of piston guide 16C
It is necessary to prevent the rotation of the piston 27 around the piston guide 16C so that it can be always conducted.
Therefore, the distal end connecting portion 27C is connected to the detent groove 45A of the trigger 25 in a state where the detent projection 45B is engaged.

The liquid passage 41A of the air replacement passage 40
Is provided along the portion where the liquid passage tube 18 of the liquid passage 17 is fitted as described above, and the above-described only sealing portion 16B of the liquid passage 17 between the pump housing 16 and the liquid passage 17 is provided. Are extended in a region surrounded by.

Therefore, according to the present embodiment, the following operations are provided. A part of an air replacement path 40 for performing the air replacement by pulling the trigger 25 is provided above the level of the horizontal plane H including the central axis of the cylinder 26 of the pump 15. Therefore, even when the container main body 11 is used by tilting forward, the liquid surface level of the liquid material in the container main body 11 does not reach the upper air replacement path 40 side around the center of the cylinder 26. Thus, when the container body 11 is used forwardly, there is no occurrence of liquid leakage from the air replacement path 40.

Piston 27 by operation of trigger 25
In the course of the movement, the sprayer main body side passage 41 and the piston side passage 42 constituting the air replacement passage 40 are conducted, and the outside air is introduced into the container main body 11 so that the liquid substance is sucked from the container main body 11. The negative pressure in the container body 11 is released. At this time, since the air replacement passage 40 is provided near the upper part around the center of the cylinder 26 of the pump 15,
Even when the container main body 11 is used with the container body 11 tilted forward, the liquid level of the liquid material in the container main body 11 does not reach the upper side of the air replacement path 40 around the center of the cylinder 26. Thus, when the container body 11 is used forwardly, there is no occurrence of liquid leakage from the air replacement path 40.

When the container body 11 is turned over when the trigger 25 is not operated, even if a liquid material enters from the container body 11 into the sprayer body side passage 41 constituting the air replacement passage, the sprayer body side passage 41 is kept in place. At this stage, since it is not conducting to the piston side passage 42, it is in a closed state with respect to the outside air side, and the liquid material is in the central cylindrical portion 27A of the piston 27.
Due to the presence of the internal pressure, the liquid does not leak to the outside by stopping at the middle of the sprayer main body side passage 41. Then, the liquid material stopped at the intermediate portion of the sprayer main body side passage 41 is collected toward the container main body 11 when the trigger 25 is operated to apply a negative pressure to the container main body 11.

The sprayer body 14 is connected to the container body 11
Of the liquid passing through the mouth of the pump housing 1 and the pump housing 1
6, the pump housing 16 and the liquid passage 17 are sealed by the only sealing portion 16B that seals the liquid passage 16A of the pump housing 16. That is, the liquid passage 41 that forms the air replacement path 40 with the liquid 17.
Since A passes through the area of the liquid passing portion 17 surrounded by the sealing portion 16B around the liquid passing portion 16A of the pump housing 16, there is no need to provide a separate sealing portion for sealing. For this reason, the appearance of the sprayer main body 14 can be made compact by requiring only one sealing portion 16B, and the liquid-tight structure of the sprayer main body 14 can be formed by one sealing portion 16B. Can be simplified.

Second Embodiment (FIG. 4) The second embodiment is different from the first embodiment in that the pump 15
In the above, the spring 28A for resiliently moving the piston 27 toward the trigger 25 is not provided in the cylinder 26, but merely disposed outside the pump housing 16.

(Third Embodiment) (FIG. 5) The third embodiment differs from the first embodiment in the arrangement of the air replacement path 40. The air replacement path 40 of the third embodiment is also connected to the sprayer body 14 (the pump housing 1).
6, a passage 51 on the sprayer main body side of the liquid passage 17) and a passage 52 on the piston side of the piston 27. At this time, the sprayer main body side passage 51 is connected to the liquid passage passage 51A of the liquid passage 17 (the same route as the liquid passage passage 41A of the first embodiment) and the cylinder 2 of the pump housing 16.
And a pump housing-side passage 51B provided around six sides. The piston-side passage 52 is formed in the lip 27B of the piston 27. Then, during the movement of the piston 27 by the operation of the trigger 25, the pump housing-side passage 51B of the sprayer body-side passage 51 is made to communicate with the piston-side passage 52 of the piston 27 at a specific position. The conduction period between the sprayer main body side passage 51 and the piston side passage 52 is set by adjusting the groove length L (FIG. 5) of the pump housing side passage 51B where the piston side passage 52 is interconnected.

At this time, the pump housing side passage 51B, the piston side passage 52, etc. of the air replacement passage 40 are
It is provided above the horizontal plane H including the central axis of the cylinder 26 of the pump 15. The distal end connecting portion 27C of the piston 27 is connected to the trigger 25 so that the piston side passage 52 of the air replacement passage 40 is always positioned above the cylinder 26 and can be connected to the pump housing side passage 51B of the pump housing 16. The detent groove 45A is connected to the detent groove 45A so that the detent projection 45B can be engaged with the detent groove 45A.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention.

[0036]

As described above, according to the present invention, it is possible to prevent liquid from leaking from the air replacement path when replacing the air in the spray container by introducing outside air into the container body during trigger operation.

Further, according to the present invention, the liquid-tight structure of the sprayer main body can be simplified, and the appearance of the sprayer main body can be made more compact.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a first embodiment.

FIG. 2 is a schematic diagram showing an air replacement path conduction state of the first embodiment.

FIG. 3 is a schematic diagram illustrating a state in which an air replacement path is cut off according to the first embodiment;

FIG. 4 is a schematic diagram showing a second embodiment.

FIG. 5 is a schematic diagram showing a third embodiment.

DESCRIPTION OF SYMBOLS 10 Spray container 11 Container main body 13 Trigger sprayer 14 Sprayer main body 15 Pump 16 Pump housing 16A Liquid passing part 16B Sealing part 17 Liquid passing 18 Liquid passing tube 25 Trigger 26 Cylinder 31 Discharge nozzle 40 Air replacement path 41 Sprayer body side passage 41A Liquid passage side passage 41B, 41C Pump housing side passage 42 Piston side passage 51 Sprayer body side passage 51A Liquid passage side passage 51B Pump housing side passage 52 Piston side passage

Claims (4)

[Claims] A pump with a trigger is provided on an upper portion of a container body, a liquid material in the container body is sucked into a cylinder of the pump by a liquid material suction operation of a trigger, and a liquid material in the cylinder is discharged by a liquid material discharge operation of the trigger. A spray container having an air replacement path that guides outside air into the container body when a trigger is operated, wherein at least a part of the air replacement path is a center of the cylinder of the pump. A spray container provided so as to pass through a level higher than a level of a horizontal plane including an axis. 2. A trigger sprayer attached to an opening of a container body, wherein the trigger sprayer includes a sprayer body, a pump provided on the sprayer body, and a trigger rotatably provided on the sprayer body. And a liquid passage tube provided in the sprayer main body, and a nozzle portion provided in the sprayer main body, a piston operated by a trigger is provided in a cylinder so as to be reciprocally movable, and a liquid material suction operation of the trigger is performed. The liquid material in the container body is sucked into the cylinder of the pump by the pump, and the liquid material in the cylinder can be ejected from the nozzle portion by the liquid material discharging operation of the trigger, and at the time of the operation of the trigger, the outside air enters the container body. A spray container having an air replacement path for guiding, wherein the air replacement path includes a sprayer body side passage and a piston. A horizontal plane including a passage, which allows conduction between the sprayer body side passage and the piston side passage during the movement of the piston by operation of the trigger, and at least a part of the air replacement passage includes a cylinder central axis of the pump. A spray container characterized by being provided so as to pass through a level higher than or equal to the level. 3. The sprayer main body-side passage is provided in a piston guide which stands upright at a center portion of a cylinder and supports a center cylinder portion of a piston, and the piston-side passage is provided in a center cylinder portion of a piston. The spray container according to claim 2, wherein the spray container is provided. 4. The sprayer body includes a pump housing having a pump, and a liquid passage sealed in a liquid passage portion of the pump housing and attached to an opening of the container body. The side passage is composed of a liquid passage side passage and a pump housing side passage communicating with each other, and the liquid passage side passage passes through an area in the liquid passage surrounded by a sealing portion between the liquid passage and the liquid passage portion of the pump housing. The spray container according to claim 2 or 3, wherein