JPH0733902Y2 - 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 the container body. A tubular member having a small-diameter cylindrical piston attached to the lower end is urged upward to stand up, and a large-diameter cylinder attached to the upper end of the member. -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 against the container body, due to the high pressure in the large-diameter cylinder, the tubular member descends against the bias and the discharge valve opens to spray from the spray hole opened on the side of the push-down head. Further, when the push down head is released due to the elimination of the high pressure, the tubular member and the push down head rise with the discharge valve closed due to the bias, and the suction valve opens at this time, and the liquid inside the container goes into both cylinders and the tubular member. Is sucked Cormorant provided those were.

[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 main cylinder member 3 which stands up a small-diameter cylinder 8 from the central portion of a bottom wall 7 which closes the main wall, and which hangs a suction pipe 10 to the bottom of the container body through a suction valve 9 provided at the lower end of the small-diameter cylinder; The large-diameter cylinder 15 fitted vertically into the inner surface of the cylinder 6 and the small-diameter cylindrical piston 21 fitted vertically into the small-diameter cylinder 8 are connected to the upper end of the communicating pipe 22 at the upper end of the large-diameter cylinder. A plunger-shaped member 20 provided with a large-diameter cylindrical piston 23 that moves up and down inside,
A coil-like spring 26 with weak elasticity, which is mounted in the large-diameter cylinder 15 and has a lower end on the lower inner surface of the large-diameter cylinder 15 and an upper end on the lower surface of the large-diameter cylindrical piston 23, respectively, and It is formed by a push-down head mechanism 30 with a discharge valve attached to the upper end of a large diameter cylinder.

[Operation] When the large-diameter cylinder 15 is pushed up and down with respect to the main cylinder member 3 from the state shown in FIG. 1, the liquid in the small-diameter cylinder 8 passes through the plunger-shaped member 20 and into the reservoir chamber 41 above it. As the liquid moves, the liquid flows from the suction valve 9 into the small-diameter cylinder 8, and the state shown in FIG. 2 is obtained. Then again large diameter cylinder
When 15 is pulled up, the suction valve 9 opens and the liquid in the container body 1 flows into the small diameter cylinder 8 to bring about the state shown in FIG. From this state, push down the push down head 37 and
When 15 is pushed down, the discharge valve in the valve box is opened by the lowering of the stem 35, and the liquid in the reservoir chamber and the small diameter cylinder 8 is sprayed from the spray hole 36 of the pressing head 37. The spraying can be continued until the liquid in the reservoir is exhausted by the spraying.
It becomes the state of the figure. Then release the hold down head and the stem 35
Rises and the discharge valve closes. Next, by pulling up the large-diameter cylinder 15, the small-diameter cylindrical piston 21 ascends in the small-diameter cylinder, sucks the liquid in the container into the small-diameter cylinder, and returns to the state of FIG.

In addition, from the state shown in FIG. 1, the push-down head 37 is pushed down to open the discharge valve, and from this state, the large-diameter cylinder 15 is pushed through the head.
It can also be sprayed by pressing down together.

"Embodiment" Explaining the embodiment shown in Figs. 1 to 4, reference numeral 1 is a container body in which a mouth / neck portion 2 is erected.

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 that is located inside the guide cylinder 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 comprises a small-diameter cylindrical piston 21 fitted into the small-diameter cylinder 8 and a communication pipe 22 which is erected and a large-diameter cylindrical piston 23 which moves up and down in the large-diameter cylinder 15 is attached to the upper end thereof.

The plunger member 20 is supported by a coil spring 26 having weak elasticity. 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 piston 23 in the large diameter cylindrical shape.

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. 5, 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 its stem is biased upward by a spring 38.When the push-down head 37 is pushed down against the bias, the peripheral edge of the through hole of the rubber 33 bends downward as the stem descends. The valve hole 35 is opened by peeling, and when the stem 35 is lifted by pressing down and opening, the rubber bush 33 is also returned to the position shown in the drawing to close the valve hole 35. Normally, a suction pipe is hung down from the through hole 39 formed in the bottom wall of the valve box into the container body, but in the case of the present invention, the reservoir formed by the inside of the valve box and the large diameter cylinder 15 above the large diameter cylindrical piston 23. It only has to pass through the chamber 41. The push-down head mechanism 30 with a discharge valve is not limited to the illustrated example.

[Advantage of the Invention] The present invention is configured as described above. Since the reservoir chamber 41 is provided in the upper part of the large-diameter cylinder and the press-down head mechanism 30 with a valve is attached to the upper end thereof, until the liquid in the reservoir chamber is exhausted. Spraying can be continuously performed by pushing down the pushing down head 37, 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 suction valve 9 is provided at the center of the bottom wall, and the small diameter cylinder 8 is also provided. A large-diameter cylindrical piston 23, which is erected from a small-diameter cylindrical piston 21 fitted inside the communication pipe 22 and attached to the upper end of the communication pipe, is fitted into the guide cylinder 6 of the main cylindrical member so as to be vertically movable. The large diameter cylinder 15 is fitted into the large diameter cylinder 15, and the inside of the large diameter cylinder above the large diameter cylindrical piston is used as the reservoir chamber 41.
The compression ratio of the reservoir chamber can be remarkably increased as compared with the conventional pressure-accumulation atomizer described above.

Further, in the sprayer of the present invention, the large diameter cylinder 15 and the plunger member 20 are both located at the upper limit, and the large diameter cylinder 15 is inserted into the main cylinder member 3 through the pressing head 37. It is convenient to spray by pushing it down.

[Brief description of drawings]

1 to 4 show one embodiment of the sprayer of the present invention. FIG. 1 is a vertical cross-sectional view with the large diameter cylinder positioned at the upper limit, and FIG. 2 shows the large diameter cylinder at the lower limit. Is a vertical cross-sectional view in a state in which liquid is flowing into the reservoir chamber, FIG. 3 is a vertical cross-sectional view showing a state immediately before spraying in which the large-diameter cylinder is pulled up from the state of FIG. 2, and FIG. FIG. 3 is a vertical cross-sectional view of the state in which the internal solution is sprayed from the state of FIG. 3, and FIG. 5 is a vertical cross-sectional view showing a conventionally known hitherto head mechanism with a discharge valve of an aerosol type atomizer. 1 ... Container body, 3 ... Main cylinder member 15 ... Large-diameter cylinder, 20 ... Plunger upper member 30 ... Depressing head mechanism with discharge valve

Claims (1)

[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 central portion of the wall 7 and hangs a suction pipe 10 to the bottom of the container body through a suction valve 9 provided at the lower end of the small-diameter cylinder, and to the inner surface of the guide cylinder 6. The large-diameter cylinder 15 fitted vertically movable and the small-diameter cylindrical piston 21 fitted vertically into the small-diameter cylinder 8 move up and down in the large-diameter cylinder to the upper end of the communicating pipe 22 standing upright. Plunger-like member 20 provided with a large-diameter cylindrical piston 23 attached, a lower end mounted on the large-diameter cylinder 15 at the lower inner surface of the large-diameter cylinder 15, and an upper end on the lower surface of the large-diameter cylindrical piston 23, A coiled spring 26 with weak elasticity, which is locked respectively, Annexed to Kidai径 cylinder upper end, hand-operated spray pump, characterized in that formed in the discharge valve with pressing head mechanism 30.