JP3527170B2 - Injector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injector for injecting the contents of a container in the form of mist, foam or powder from an injection port by manually operating a valve or a pump.

[0002]

2. Description of the Related Art Although various structures have been devised for spraying cosmetics, insecticides, cleaning liquids, etc. from this type of sprayer,
A spray pattern that sprays onto a wide peripheral area or point area is common. Further, a nozzle provided with a plurality of injection ports or adjusting an injection angle to freely change the injection area has been proposed, but in any case, it is premised on the injection to a wide area in all directions.

[0003]

Therefore, for example, when the cleaning liquid is sprayed onto a rectangular screen door to be washed, the cleaning liquid is regularly used without wasting the cleaning liquid by sequentially shifting the narrow horizontal strip-shaped cleaning regions in the vertical direction. It is difficult to clean the pesticide, and there is a problem that the vertical spraying type injector which sprays the pesticide directly upward or obliquely upward diffuses toward the user.

In view of the above, the present invention has an object to provide an injector of the kind described at the beginning which can spray the contents of a container in a layered spray pattern in the form of mist, foam or powder. To do.

[0005]

In order to achieve this object, the present invention provides a nozzle in which a nozzle is provided by means of claim 1 so that the contents of the container are ejected from an ejection port by a manual operation. The vertical width is about twice as wide as the horizontal width or more, and the depth width is at least about the same as the vertical width so that the tip end is sprayed into the flow path of In addition to forming the jet approach portion to be the jet port, it is the same as the vertical width side peripheral surface of the jet run portion so as to limit the jet diffusion in the lateral width direction of the jetted jet pattern at the nozzle tip portion ahead of the jet port. The present invention is characterized in that a diffusion limiting surface which is planar and has a vertical width equal to or larger than the vertical width of the injection port and which is continuous from the injection port toward the front side is formed.

When the discharged contents pass through the jet propulsion portion, the flow of the contents is rectified in the jet direction along the peripheral surface with a narrow separation distance, especially the vertical width side, and a strip-like shape is formed from the jet port at the tip. It is injected toward the injection target area. Even after the jetting, the lateral width of the jetting pattern is limited by the diffusion limiting surface having a vertical width equal to or greater than the vertical width of the jetting port at the tip of the jetting assist portion.

At this time, in order to adjust the position of the layered injection pattern in the rotational direction, the nozzle is rotatably supported by the tubular portion having the flow path communicating with the inside of the container according to the second aspect. The nozzle tip having the diffusion limiting surface is projected from the cylindrical portion. In order to prevent jet diffusion to the user side when jetting in a stratified jet pattern from a vertical jet type injector, according to claim 3, the injector is a vertical jet type, and the vertical width on both sides of the jet run-up portion is defined. A diffusion limiting surface is formed continuously with the vertical width side peripheral surface located on the user side among the side peripheral surfaces.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An injection button functioning as an injector according to an example of an embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the injection button 10 includes a vertical cylinder portion 11 that serves as a flow path for aerosol contents discharged from the aerosol container 1. As is well known, the stem 3 is attached to the housing 5 in the mounting cap 2 attached to the opening of the tip of the aerosol container 1, and is fitted into the fitting portion 11 a of the tubular portion 11. The stem hole 3a of the stem 3 is pressed against the stem rubber 7 to be sealed, and when the injection button 10 is pushed down, it communicates with the inside of the housing 5 as shown in the drawing, and when the operation is released, the stem 6 is returned to its original position by the spring 6. It returns automatically.

In the flow path further ahead of the injection button 10,
A cylindrical portion 13 having a slightly upward horizontal circular cross section is formed, and a rotary nozzle 20 is fitted therein. As shown in FIG. 2, the rotary nozzle is rotatably supported while sealing the aerosol contents by the ring-shaped protrusion 21 on the outer periphery thereof being pressed against the peripheral wall of the tubular portion 13.
The base end portion of the tubular portion 13 has an inner diameter slightly smaller than the inner diameter thereof, so that the tapered base end portion 22 of the nozzle 20 is provided.
Is provided with an annular end surface 14a for contacting the
A seat portion 14 having a circular inner peripheral surface that communicates with the upper end portion of 1 is formed.

A protruding portion 20a from the cylindrical portion 13 of the nozzle 20
A knob portion 23 having flat outer peripheral surfaces on both sides and a hemispherical portion 24 having a curved front end surface are formed so as to function as a knob for rotating operation.

In the tip region of the flow path 26 of the nozzle 20, it is located in the knob portion 23 and has a vertical width of 1.5 mm and a horizontal width of 0.
A rectangular parallelepiped jet run-up portion 27 having a depth of 5 mm and a depth of 2 mm is formed. The diameter of the hemispherical portion 24 is wider than the vertical width of the jet propulsion portion 27, and in this diameter region, a semicircular slit 24b is formed along the jet propulsion portion 27. That is, in the hemisphere portion 24, the vertical width side peripheral surface 27 of the injection run-up portion 27 is provided.
A pair of diffusion limiting surfaces 24a on both sides are formed continuously with b and have the same separation distance as the lateral width.

The operation of the injection button 10 thus constructed is as follows. Injection button 10 as shown in FIG.
When is pressed down, the aerosol content discharged by the self-injection pressure of the container 1 flows into the injection assisting portion 27 via the stem 3, the tubular portion 11, the seat portion 14 and the flow path 26 of the nozzle 20. At that time, the aerosol content is narrowed in the jet run-up portion 27, and is rectified in the jet direction by the peripheral surface 27b extending in the depth direction, in particular, on the vertical width side peripheral surface 27b, and jetted in layers from the jet port 27a. Further, the diffusion limiting surface 24a, which is wider than the vertical width of the jet run-up portion 27, does not limit the jet diffusion in the vertical width direction of the aerosol, but limits the jet diffusion in the horizontal width direction and blows the aerosol onto the injection target area. At that time, the diffusion limiting surface 24a suppresses the lateral diffusion even in the diffusion process in the vertical direction.

The layered injection pattern can be rotated by pinching the knob portion 23 if necessary. Diffusion limiting surface 24
By forming a in the hemispherical portion 24, the shape is safe for the user and also a unique design. When the aerosol is, for example, a cleaning agent, it is possible to efficiently and regularly clean the rectangular cleaning target object by shifting the band-shaped injection target region widely diffused in the longitudinal direction in the narrow lateral direction.

In the above-described embodiment, it is possible to dispense with the pair of diffusion limiting surfaces 24a on both sides and directly inject from the injection port 27a in a layered pattern. In particular, in such a case, the shape of the jet propulsion portion is a range in which the vertical width is a band shape and is twice or more wider than the horizontal width, and preferably has a depth width at least approximately the same as the vertical width so as to be advantageous in layer formation. Can be variously formed.

FIG. 3 shows a vertical injection type and full injection type injector which is mounted on the mounting cap 32 of the aerosol container 1 whose content is an insecticide or insect repellent. That is, the cover cap 34 attached to the mounting cap 32 is integrally formed with the lever-shaped operation portion 35 via the integral hinge portion 35a, and the cylindrical ejection button 38 into which the nozzle 40 is fitted is housed. ing. When the cover cap 34 is attached to the mounting cap 32, the tapered base end portion 38 a of the injection button 38 is fitted to the stem 36 attached to the housing.

The nozzle 40 is non-rotatable but, like the one described above, the projection 40 from its cover cap 34.
In a, a rectangular parallelepiped injection approach portion 4 in the tip region of the flow path 46 is provided.
7 and a pair of diffusion limiting surfaces 44a on both sides, and a hemispherical portion 44 having a diameter larger than the vertical width of the injection propulsion portion 47 is formed. The diffusion limiting surface 44a is continuous with the vertical width side peripheral surfaces on both sides of the injection propulsion portion 47 and has the same separation distance as the horizontal width.

When the operation portion 35 is pushed down so that the diffusion limiting surface 44a is directed toward the user, the notch 39a for locking the stopper 39 which is inserted into the opening 37 and exhibits bending elasticity is provided.
Then, as shown in the figure, when the edge of the opening 37 is locked,
The pesticide aerosol is sprayed in layers and efficiently sprayed toward the strip-shaped target area to prevent the pesticide from being applied to the user or his / her clothes, and the diffusion limiting surface 44
The layered injection pattern is ensured even after the injection by a.

FIG. 4 shows another embodiment in which the surface for limiting the diffusion of the insecticide is formed only on the user side, and the tip end region of the flow path 46 of the nozzle 60 fitted into the above-mentioned injection button 38 is shown. Further, a rectangular parallelepiped injection run-in portion 61 having a vertical width that is about four times the horizontal width is formed. Nozzle 60 protrusion 65
Is formed of a semi-cylindrical portion 65a and a hemispherical portion 65b, and has a wide diffusion limiting surface 67 that is in the same plane along the circumferential surface of one side of the jet propulsion portion 61. This allows
The layered aerosol insecticide is jetted from the jet port 61a at the tip of the jet run-up portion 61, and the diffusion limiting surface 67 suppresses the diffusion to the user side.

[0019]

According to the first aspect of the present invention, the vertical injection width is wider than the horizontal width, and the injection run-out portion extending in the depth direction is continuously formed at the injection port, and the horizontal width after the injection is diffused. By being surely restricted on the restriction surface, the spray pattern of mist or bubbles becomes layered, and it becomes possible to perform highly accurate spraying on the band-shaped target area for spraying.

According to the second aspect of the invention, the rotational position of the layered injection pattern from the injector can be adjusted by using the tip of the nozzle as a knob. According to the invention of claim 3, in the case of the injection in the layered injection pattern of the vertical injection type, the diffusion to the user side after the injection can be surely suppressed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an injection button according to an embodiment of the present invention.

2A and 2B show nozzles of the injection button, FIG. 2A is a vertical cross-sectional view, FIG. 2B is a vertical cross-sectional view in the orthogonal direction, and FIG. 2C is a front view.

3A and 3B show a vertical injection type aerosol device. FIG. 3A is a vertical sectional view and FIG. 3B is a vertical sectional view in a direction orthogonal to the vertical sectional view.

FIG. 4 is a perspective view of a nozzle according to another embodiment.

[Explanation of symbols]

1 aerosol container 10, 38 injection button 11, 13 Tube 20, 40, 60 nozzles 20a, 40a, 65 Projection 24, 44, 65b Hemisphere 24a, 44a, 67 Diffusion limiting surface 24b slit 26, 46 channels 27, 47, 61 Injection runner

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B05B 1/04 B05B 9/04 B65D 83/40

Claims (3)

(57) [Claims] 1. An injector comprising a nozzle, wherein the contents of a container are ejected from an ejection port by a manual operation , so that the flow path of the nozzle is ejected to a strip-shaped region extending in the longitudinal direction wider than the lateral width, Vertical width is more than twice the horizontal width
Wide and at least said longitudinal width about the same depth width
To form an injection approach part with the tip as the injection port,
Injected into the tip of the nozzle ahead of the injection port
In order to limit the jet diffusion in the width direction of the firing pattern,
The injection surface is the same as the vertical width side peripheral surface of the injection runway portion, and the injection is performed.
From the injection port to the front with a vertical width greater than the vertical width of the mouth
An injector characterized in that a continuous diffusion limiting surface is formed toward the end . 2. A nozzle is rotatably supported by a cylindrical portion formed in a flow path communicating with the inside of the container, and a diffusion limiting surface is provided.
2. The injector according to claim 1 , wherein the nozzle tip portion having the nozzle formed therein is projected from the cylindrical portion. Wherein the injector is a vertical injection type, injection approach portion
The vertical width side located on the user side of the vertical width side peripheral surfaces on both sides
The injector according to claim 1, wherein a diffusion limiting surface is formed continuously on the peripheral surface .