JPH07202Y2 - Manual sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a manual sprayer used for spraying a cosmetic liquid or the like.

"Prior Art" Recently, a pressure-accumulation type atomizer such as that disclosed in Japanese Utility Model Laid-Open No. Sho 63-185475 is widely used. The pressure-accumulation type atomizer is a small-diameter cylinder with a suction valve that is vertically installed in a container body. -Shaped piston is fitted into a large diameter cylinder hung from the lower surface of the pressing head, and a discharge valve is formed by a valve body standing from the upper end of the member and a valve hole formed in the top wall of the large diameter cylinder. When the push-down head is pushed down with respect to the container body, the tubular member is lowered against the bias due to the high pressure in the large diameter cylinder, and the discharge valve is opened to spray from the spray hole opened on the side of the push-down head, Further, when the pressing head is released due to the elimination of the high pressure, the tubular member and the pressing head rise with the discharge valve closed due to the above-mentioned bias, at which time the suction valve opens, and the liquid inside the container enters both cylinders and the tubular member. I'm sucked in It is those provided.

[Problems to be solved by the invention] The conventional pressure-accumulation type atomizer has a drawback that its atomizing time is relatively short.

The present invention is provided so as to eliminate the above-mentioned defects and prolong the spraying time.

"Means for Solving the Problem" A container body 1 for erecting a mouth / neck portion 2, and an upper end portion fitted to the mouth / neck portion so as to vertically hang a guide cylinder 6 into the container body and a lower end surface of the guide cylinder. A small-diameter cylinder 8 is erected from the central portion of the bottom wall 7 that closes the pipe, and a suction pipe 10 is provided to the bottom of the container via a first suction valve 9 provided at the lower end of the small-diameter cylinder.
A main cylinder member 3 that hangs down, a large-diameter cylinder 15 fitted vertically inside the guide cylinder 6, and a small-diameter cylindrical piston 21 vertically movably fitted inside the small-diameter cylinder 8. Plunger-like member 20 having a large-diameter cylindrical piston 23 vertically moving in the large-diameter cylinder attached to the upper end of communication pipe 22, and a second suction valve 24 attached to the upper-end of the communication pipe, and inside large-diameter cylinder 15 Attached to the upper end of the large-diameter cylinder, and the coil-shaped first spring 26 having the lower end attached to the lower inner surface of the large-diameter cylinder 15 and the upper end attached to the lower surface of the large-diameter cylindrical piston 23. Push-down head mechanism with discharge valve
Formed with 30 and.

[Operation] When the large-diameter cylinder 15 is pushed down against the main cylinder member 3 from the state shown in FIG.
After passing through 20, it moves into the pressurizing chamber 41 above it, and becomes the state of FIG. In this state, the liquid in the pressure chamber 41 is the first spring
It is pressurized by the upward biasing of the plunger-shaped member 20 by 26. When the push-down head 37 is pushed down from this state, the stem
The discharge valve in the valve box is opened by the downward movement of 35, and the liquid in the pressurized chamber is sprayed from the spray hole 36 of the pressing head 37. Due to the decrease in the liquid in the pressurized chamber due to the spraying, the plunger-shaped member 20 rises, and the spraying can be continued until the upper limit is reached and the pressurized liquid is exhausted. Plunger-like member 20 rises and first
The suction valve 9 opens and the liquid in the container body 1 flows into the small diameter cylinder 8. When the pressing head is released, the stem 35 rises and the discharge valve closes. By pulling up the large-diameter cylinder 15, the small-diameter cylindrical piston 21 further rises in the small-diameter cylinder and sucks the liquid in the container into the small-diameter cylinder.

In the embodiment shown in FIGS. 3 and 4, the large diameter cylinder 15 is urged downward by the second spring 32, and in the embodiment shown in FIG. 5, the large diameter cylinder 15 is urged upward. ing.

In the case of the embodiment shown in FIGS. 1 and 2, the pressing head 37 is pushed down from the state shown in FIG. 1 to open the discharge valve, and the large diameter cylinder 15 is pushed down together from that state through the head. But you can spray it.

"Embodiment" First, the embodiment shown in Figs. 1 and 2 will be described.
Reference numeral 1 is a container body that stands up the mouth / neck portion 2.

The main cylinder member 3 is vertically installed in the container body 1. The main cylinder member has a peripheral wall 4 screwed into the mouth / neck portion 2, and a guide cylinder 6 having an upper half large inner diameter is hung down via an inward flange-shaped wall 5 attached to the upper end of the peripheral wall to guide the guide cylinder. A small-diameter cylinder 8 is erected from the center of the bottom wall 7 that closes the lower end surface, a suction valve 9 is provided at the center of the bottom wall, and a suction pipe 10 is hung from the valve to the bottom of the container body.

A large-diameter cylinder 15 is fitted in the guide cylinder 6 so as to be vertically movable. The large-diameter cylinder is provided with an inward flange-shaped wall 16 at the lower end thereof to allow the small-diameter cylinder 8 to be inserted into the flange-shaped hole, and a ridge 17 circumferentially provided on the outer surface of the middle portion of the large-diameter cylinder to have a large inner diameter of the guide cylinder 6. The large-diameter cylinder 15 is prevented from being pulled out from the inside of the guide cylinder 6 by the engagement of the protrusion 17 with the engagement ridge 5a which is located inside the portion and is provided around the upper end of the guide cylinder. An inward flange-shaped wall 18 is attached slightly below the upper end of the large diameter cylinder.

The plunger-shaped member 20 is fitted in the small-diameter cylinder 8 and the large-diameter cylinder 15 so as to be vertically movable. The member is a small-diameter cylindrical piston 21 fitted in the small-diameter cylinder 8, and a communication pipe 22 is erected from the small-diameter cylindrical piston 21 and a large-diameter cylindrical piston 23 that moves up and down in the large-diameter cylinder 15 is attached to the upper end of the communication pipe 22. A second suction valve 24 having a ball valve as a valve body is provided at the upper end of the pipe.

The plunger member 20 is biased upward by the first coil spring 26. The lower end of the spring is pressed against the upper surface of the inward flange-shaped wall 16 at the lower end of the large diameter cylinder, and the upper end is pressed against the lower surface of the large diameter cylindrical piston 23.

A push-down head mechanism 30 with a discharge valve, which is used in an aerosol sprayer, is attached to the upper end of the large-diameter cylinder 15 described above. The mechanism is, for example, as shown in FIG. 6, a valve box 32 with an outward flange 31 and a rubber with a through hole for closing the upper surface thereof.
33 is wrapped with a metal jacket 34 to be connected integrally, and a stem 35 having a small outer diameter portion in the middle and a valve hole 35 formed in the small outer diameter portion and having a closed bottom surface is closed into the through hole. The valve hole 35 is closed by the inner wall surface of the through hole of the rubber 33 which is inserted and fitted into the small outer diameter portion, and the push-down head 37 with the spray hole 36 is provided at the upper end of the stem.
And the stem is urged upward by the third spring 38. When the push-down head 37 is pushed down against the urge, the peripheral edge of the through hole of the rubber 33 moves downward as the stem descends. The valve hole 35 opens by bending to the
When 35 rises, the rubber 33 also returns to the position shown and the valve hole
It is provided to close 35. Normally, the suction pipe is hung vertically from the through hole 39 formed in the bottom wall of the valve box into the container body. It is only necessary to communicate with the inside of the pressure chamber 41. The push-down head mechanism 30 with a discharge valve is not limited to the illustrated example.

In the embodiment shown in FIG. 3 and FIG. 4, the second spring 43 is mounted between the large inner diameter portion of the guide cylinder 6 and the outer surface of the large diameter cylinder. Is urged downward. The other parts are the same as in the first embodiment. Therefore, in the case of this embodiment, the descending state of the large diameter cylinder 15 with respect to the main cylinder member 3 is normally set. However, FIG. 3 shows a state in which the pressurized liquid flows into the pressurizing chamber 41,
Spraying is performed by pushing down the pushing head 37 from this state, and the plunger-shaped member 20 rises due to the reduction of the pressurized liquid due to the spraying.

In the embodiment shown in FIG. 5, the peripheral wall 15b vertically extending from the upper end of the large-diameter cylinder 15 through the outwardly projecting portion 15a is fitted to the outer surface of the container body in a vertically movable manner, and the upper end of the main cylindrical member 3 and the large-diameter cylinder are attached. A second coil spring 43 is provided between the upper end of the cylinder 15 and the upper end of the cylinder 15 to urge the large-diameter cylinder 15 upward, and the other parts are the same as in the first embodiment. In the case of the embodiment, the large cylinder 15 is normally held in a rising state with respect to the main cylinder member 3 shown in the figure, and when the large cylinder 15 is pushed down with respect to the main cylinder member 3, the liquid flows into the pressurizing chamber 41 and is released. As a result, the large-diameter cylinder 15 rises, and the plunger-shaped member 20 is positioned below the position shown in the drawing against the bias of the first spring 26, and is sprayed by pressing down the pressing head 37. Plunger member 20 rises to pressurize the liquid.

[Advantages of the Invention] The present invention is configured as described above, and as a common effect of the atomizers of each claim, a pressurizing chamber 41 is provided in the upper part of the large diameter cylinder and a pressing head mechanism 30 with a discharge valve is provided at the upper end thereof. Therefore, press down head 37 until the liquid in the pressurized chamber runs out.
Can be continuously sprayed by pushing down, and a small diameter cylinder 8 is erected from the central portion of the bottom wall 7 of the main tubular member 3 and a first suction valve 9 is provided at the center of the bottom wall, and inside the small diameter cylinder 8. From the small-diameter cylindrical piston 21 fitted to the upper end of the communicating pipe 22 having the second suction valve 24 at the upper end, and attaching the large-diameter cylindrical piston 23 to the upper end of the communicating pipe, Since it is fitted in the large diameter cylinder 15 that is vertically movably fitted therein, and the inside of the large diameter cylinder above the large diameter cylindrical piston is the pressurizing chamber 41, the compression ratio of the pressurizing chamber is already set. It can be remarkably increased as compared with the conventional pressure-accumulation type atomizer.

In addition, in the sprayer according to the first aspect, in addition to spraying in the state where the large diameter cylinder 15 is not lowered with respect to the main cylinder member 3 as described above, the large diameter cylinder 15 and the plunger-shaped member are also provided.
From the normal state shown in FIG. 1 in which both 20 are at the upper limit, it is convenient that the large-diameter cylinder 15 is pushed down against the main cylinder member 3 via the push-down head 37. The state where the large-diameter cylinder 15 is located at the lower limit of the main cylinder member 3 is the normal state, and it is provided so that the normal state can be maintained even when the liquid enters the pressurizing chamber 41 and is pressurized. Can be miniaturized, and the third
The atomizer described in the claims is a large diameter cylinder with respect to the main cylinder member 3.
Since 15 is always kept in a raised state, it is convenient that the liquid can flow into the pressurizing chamber 41 to pressurize it by simply pressing down the large diameter cylinder 15.

[Brief description of drawings]

FIGS. 1 and 2 show a first embodiment of the sprayer of the present invention, and FIG. 1 shows a state in which the large diameter cylinder is located at the upper limit,
Also, FIG. 2 is a vertical cross-sectional view in which the large-diameter cylinder is located at the lower limit and liquid has flowed into the pressurizing chamber.
FIGS. 4 and 5 show the second embodiment. FIG. 3 shows the large-diameter cylinder at the lower limit and liquid flows into the pressurizing chamber, and FIG. 4 shows the large-diameter cylinder. Each vertical cross-sectional view in the state of being pulled up to the upper limit, FIG. 5 shows the third embodiment, and the vertical cross-sectional view in the state in which the large diameter cylinder is located at the upper limit,
FIG. 6 is a vertical cross-sectional view showing a conventionally known push-down head mechanism with a discharge valve of an aerosol type atomizer. 1 …… Container body, 3 …… Main cylinder member 15 …… Large cylinder, 20 …… Plunger member 30 …… Pressing head mechanism with discharge valve

Claims (3)

[Scope of utility model registration request] 1. A container body 1 for erecting a mouth / neck portion 2, and a bottom for fitting an upper end portion to the mouth / neck portion for vertically extending a guide cylinder 6 into the container body and closing a lower end surface of the guide cylinder. A main cylinder member 3 which stands up a small-diameter cylinder 8 from the center of the wall 7, and which hangs a suction pipe 10 to the bottom of the container via a first suction valve 9 provided at the lower end of the small-diameter cylinder, and the guide cylinder 6 described above.
Inside the large-diameter cylinder, the large-diameter cylinder 15 fitted vertically to the inner surface and the small-diameter cylindrical piston 21 vertically fitted in the small-diameter cylinder 8 are connected to the upper end of the communicating pipe 22 standing upright. Plunger member 20 having a large-diameter cylindrical piston 23 that moves up and down and a second suction valve 24 at the upper end of the communication pipe.
And the large-diameter cylinder 15 mounted inside the large-diameter cylinder 15 described above.
Coil-shaped first spring in which the lower end is locked to the inner surface of the lower part of the piston and the upper end is locked to the lower surface of the large-diameter cylindrical piston 23, respectively.
26, and a manual sprayer formed by a push-down head mechanism 30 with a discharge valve attached to the upper end of the large diameter cylinder. 2. The manual sprayer according to claim 1, wherein the large diameter cylinder 15 is urged downward with respect to the main cylinder member 3. 3. The manual sprayer according to claim 1, wherein the large-diameter cylinder 15 is biased upward with respect to the main cylinder member 3.