JPS6043183B2 - push button type sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push-button type sprayer that sucks up liquid in a container into a cylinder, pressurizes it, and sprays it by raising and lowering a push button.

Generally, this type of sprayer has a spout opening on the side of the push button, and the spray is generated on the side of the push button.

Therefore, the pressing direction of the push button and the spraying direction are located perpendicular to each other, and this relationship exists fixedly and cannot be changed. Therefore, conventional sprayers cannot produce spray in any direction, for example, in the same direction as the pressing direction, which limits the range of application. The object of the present invention is to provide a push button type sprayer that allows the spray direction to be arbitrarily selected. According to one embodiment of the present invention, a joint having a flow path communicating with a flow path of the bush button is rotatably attached to a side surface of the bush button.

A long nozzle is attached to the side of the joint, and has a spout at its tip that communicates with the flow path of the joint via the flow path in which the spinner is housed. Therefore, by rotating the long nozzle together with the joint relative to the bush button, the spray direction can be freely set within a plane parallel to the axis of the bush button. Further, since the bush button itself is rotatably housed in the head of the container, for example, when the bush button is rotated, the joint and the long nozzle are also rotated. Therefore, the spray direction can be freely set even within a plane perpendicular to the axis of the bush button.
In other words, according to the present invention, the spray direction can be set three-dimensionally, increasing the range of applications. A preferred embodiment of the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 and 2 (however, the main part of the pump mechanism is removed), the sprayer 10 according to the present invention can be moved up and down and rotated above a container 12 containing a liquid. It is equipped with a retracted bush button 14.

Generally, a container includes a main body and upper and lower covers, and the main body and upper cover of the illustrated container 12 are formed by injection molding of plastic. This reduces the number of parts and facilitates assembly. Bush button 1
It goes without saying that the body housing the bush button 12 may be attached to the upper part of the container instead of being directly attached to the upper part of the container. and bush button 1
A joint 20 in which a flow path 18 communicating with the flow path 16 of the bush button is formed is rotatably attached to the side surface of the bushing button 2.

Further, a long nozzle 24 in which a flow path 22 communicating with the flow path 18 is formed is attached to the side surface of the joint 20.
It is sufficient that the long nozzle 24 extends along the axis of the container 12, and it may be attached to the free end of the joint 20 instead of the side surface of the joint 20, and then bent and extended in the axial direction. A spray port 26 is formed at the tip of the long nozzle 24, and a spinner (not shown) is housed in the flow path 22 adjacent to the spray port. A nozzle cap 28 is detachably attached to the tip of the long nose so as to close the spray port 26. A lower cover 30 is fixed to the lower opening of the container 12, and a plug 32 for filling and replenishing liquid is removably attached to the lower cover 30.

Also disposed within the lower cover 30 is a moisture-absorbing material 36, such as a sponge, fitted over the free end of the suction tube 34. Therefore, even when the container 12 is used tilted, the liquid can be sucked through the moisture absorbing material 36, and spraying becomes possible. The pump mechanism 40 of the sprayer 10 is shown in FIG.

The cylinder 42 of this pump mechanism 40 has an inner flange 43
The lower end of the suction pipe 34 extends through the container. The pump mechanism 40 includes a piston 44 that slides within a cylinder 42, and the piston 44 is composed of three piston parts 45, 46, and 47 that are fitted in series in sequence and can move integrally. A negative pressure packing 48 is disposed between the first piston portion 45 and the cylinder 42 to prevent the container 12 containing liquid from becoming negative pressure. Further, skirt-shaped seal pieces 50 and 5 are provided at the lower ends of the outer peripheries of the second and third piston parts 46 and 47.
2 are formed to define a retention space 54 for residual pressurized liquid between the seal pieces. The remaining pressurized fluid in the cylinder 42 is removed from the retention space 5 on the inner wall of the cylinder in a region close to the bottom dead center of the piston 44, that is, the bottom dead center of the third piston portion 47.
sealing piece 52 of the third piston part for ejection into the
, e.g. conformally arranged 4
ribs 56 are provided. Further, after the piston 44 has descended by a certain distance, the third piston portion 47 moves toward the rib 5.
6, e.g. four conformally arranged sealing pieces 54 for partially deforming the sealing piece 54 of the second piston part 46 in order to release the residual pressurized liquid stagnant in the space 54 before being deformed by the A rib 58 is further provided on the inner wall of the cylinder.・
Reference numeral 60 indicates a primary valve, and reference numeral 62 indicates a discharge path for returning the remaining pressurized liquid into the container. A liquid flow path 64 extending in the axial direction is formed in the piston 44, and a secondary valve 66 is formed inside the piston 44.
is arranged within the flow path 64.

The secondary valve 46 has a valve seat 6 formed in the second piston portion 46.
8 is provided with a valve portion 72 which is pressed by a compression coil spring 70 to open and close the flow path 64 at all times.

The secondary valve further includes a skirt-like cylindrical piece 74 that temporarily blocks passage of liquid even after the valve portion 72 is separated from the valve seat 68. In other words, after the seal piece 74 slides along the inner wall of the first piston part 45 for a predetermined distance C in a fluid-tight manner, it enters into the annular groove 76 formed in the inner wall of the first piston part 45. It is composed of Therefore, the liquid that has flowed between the valve portion 72 and the valve seat 68 flows through the seal piece 7.
It is temporarily housed in a space 78 defined by 4. It is preferable that the valve portion 72 and the seal piece 74 be integrally formed in order to reduce the number of parts and to simplify the configuration. It goes without saying that in the illustrated embodiment, the annular path 76 could be replaced by a rib, and the ribs 56 and 58 could be replaced by an annular path.

Further, means other than the annular path and ribs may be used as long as the structure allows the liquid-tight state of the skirt-shaped seal piece to be released as necessary. Further, the piston 44 may not be composed of three piston parts but may be constructed integrally. Here piston 44
is fitted into the support cylinder 14a of the bush button 14, and a compression spring (not shown) is disposed around the support cylinder to press the bush button and the plug in opposite directions.
When the skirt-shaped seal piece 52 of the third piston portion 47 is deformed by the rib 56 near the bottom dead center of the piston 44, the remaining pressurized liquid flows out through the seal piece 52 into the retention space 54.

When the downward pressing force on the piston 44 is removed, the valve portion 72 of the secondary valve 66 is pressed against the valve seat 68 by the coil spring 70 and closes the flow passage 64, and the piston 44 itself is also pressed against the coil spring 70. Therefore, the first piston portion 4 is pressed upward.
5 rises until it is restrained by the negative pressure packing 48. Liquid is then sucked into the cylinder 42 from the container via the primary valve 60. Thereafter, a downward pressing force is applied to the piston 44 to pressurize and accumulate the liquid in the cylinder 42 for the next spraying process. When the pressurizing force applied to the secondary valve 66 exceeds the biasing force of the coil spring 70, the secondary valve 66 is moved upward so as to move the valve portion 72 away from the valve seat 68. However, the skirt-shaped seal piece 74
As long as the pressurized liquid does not move further upwards, the pressurized liquid
Its passage is obstructed by the space 78, and it is temporarily stored in the space 78. In order to move the seal piece 74 by a predetermined distance C, further downward pressure is applied to the piston 44, and the downward stroke of the piston during this period is used as an additional pressure accumulation stroke to further pressurize and accumulate the liquid. Then, when the seal piece 74 enters the annular groove 76 and the liquid-tight state of the seal piece 74 is released, and the secondary valve 66 is completely opened, the liquid has sufficiently accumulated pressure, so that the spray with a good rise can be obtained. is obtained. Furthermore, even when the hydraulic pressure decreases, the biasing force of the coil spring 70 causes the seal piece 74 to move into the annular groove 7.
6, and the liquid-tight state is quickly established again.
The spray stops instantaneously and provides a sharp spray. Here, since the liquid in the cylinder 42 and the remaining pressurized liquid in the retention space 54 are pressurized as the piston 44 descends, the pressing force of the piston increases.

However, if the skirt-like seal piece 50 of the second piston portion 46 is deformed by the rib 58, the remaining pressurized liquid in the retention space 54 will be discharged upward through the seal piece 50. Therefore, the resistance due to the residual pressurized liquid in the retention space 54 disappears. Therefore, although the pressing force applied to the piston 44 is large at the beginning of the downward movement, it rapidly decreases after a certain downward stroke. Therefore, by appropriately combining the point at which the pressing force applied to the piston begins to decrease and the point at which the secondary valve 66 opens, it is possible to obtain a good rise of the saw layer. As described above, this pump mechanism 40
According to , the secondary valve maintains a liquid-tight state even after the valve part separates from the valve seat, preventing the passage of liquid, and only becomes liquid-tight when the piston descends a certain distance and further pressure is accumulated. It is equipped with a skirt-like seal piece that releases the seal.

Therefore, the pressure of the liquid is sufficiently accumulated, and a fine spray with good rise and sharpness can be obtained. A simpler configuration can be obtained compared to the conventional configuration in which liquid flows in large and small cylinders. Additionally, a pair of skirt-like seal pieces spaced apart from each other is formed around the outer periphery of the piston to define a retention space for the residual pressurized liquid between the seal pieces, so that when the piston moves down a certain stroke, the residual pressure in the retention space is increased. By releasing the pressurized liquid, the pressing force of the piston can be rapidly reduced and the rise of the spray can be improved. The plug 48 has a skirt portion 48a that is connected to the shoulder portion 45a of the first piston portion 45.
A sealing effect is produced by being pressed by the However, as shown in FIG.
A may have a tapered surface 80 and a protrusion 82 extending from the shoulder toward the plug and having a straight inner surface. If the first piston portion 45 is configured in this way, the plug 48 is pressed against the tapered surface 80 by the projection 82 and deforms, so that a sealing effect is produced at the inner edge of the projection 82, the upper surface of the shoulder, and the tapered surface. A triple seal can be secured. Sealing of joint 20 is ensured by an O-ring 84 (see FIG. 2). However, as shown in FIG. 5, a ring-shaped seal piece 86 is formed at the tip of the joint 20, and a skirt-shaped seal piece 88 is formed on the side of the tip, thereby ensuring a double seal. The attachment of the joint 20 to the bushing button 14 is accomplished by snap means 94 consisting of a projection 90 and an annular groove 92. The protrusion 90 may be a full circumferential ring or a partial segment. In the illustrated modification, the protrusion 90 is connected to the bush button 14.
Although an annular groove 92 is formed in the joint 20, the same snap-fitting can be achieved even if the combination is reversed. Figures 6a to 6c show an example of a stopper means 96 for preventing the bush button 14 from being pressed other than when necessary.

This stopper means 96 is formed integrally or separately on the side surface of the container 12. The stop means 96 is arranged so that the nozzle cap 28 of the long nozzle is removably held between the chevron-shaped protrusion pieces 96b of the snap body 96a and leaves a slight gap between the tip of the nozzle cap 28 and the snap base 96c. is formed. Therefore, the stop means 96 can snap-hold the long nozzle 24 in the circumferential direction of the container and can sufficiently prevent the long nozzle 24 from lowering, thereby preventing unnecessary lowering of the long nozzle 24 and the bush button 14. be hindered. Another stop means 98 is shown in FIG. This stop means 9
Reference numeral 8 is in the form of a bush button cover that is arranged to cover the bush button 14 and come into contact with the upper edge of the container 12. The stop means 98 has a vertical groove 98a extending in the axial direction and a horizontal groove 98b communicating with and perpendicular to the vertical groove 98a on its peripheral wall. To this end, the stop means is placed on the container 12 from above the bushing button 14 so that the joint 20 is aligned with the vertical groove 98a of the stop means 98, and then partially rotated so that the joint enters the horizontal groove 98b. In this way, the bush button 14 is housed in the stop means 98, so it is impossible to press the bush button, and even if a downward force is applied to the long nose 24, the joint 20 will come into contact with the lower edge of the horizontal groove. This prevents the long nose from descending, leaving no room for accidental spraying. As described above, according to the sprayer of the present invention, the joint having the flow path communicating with the flow path of the bush button is rotatably attached to the side surface of the bush button.

Further, a long nozzle having a spout at its tip that communicates with the flow path of the joint via the flow path in which the spinner is housed is attached to the side of the joint. Therefore, by rotating the long nozzle together with the joint relative to the bush button, the spray direction can be freely set within a plane parallel to the axis of the bush button. Further, since the bush button itself is rotatably housed in the head of the container, for example, when the bush button is rotated, the joint and the long nozzle are also rotated. Therefore, the spray direction can be freely set even within a plane perpendicular to the axis of the bush button. In other words, according to the present invention, the spray direction can be set three-dimensionally, increasing the range of applications.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a push button type sprayer according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view of the sprayer shown in Fig. 1 with a nozzle cap attached, looking into the pump mechanism, and Fig. 3 is a longitudinal sectional view of the sprayer shown in Fig. 4 is a partial sectional view showing a modification of the first piston part of the pump mechanism; FIG. 5 is a partial sectional view showing a modification of the joint; FIGS. 6a to 6c are bush buttons. A plan view, a front view, a right side view, and a perspective view of a modification of the stop means are shown in FIG. 10: Push button type sprayer, 12: Container, 1
4: Push button, 20: Joystick, 24: Long nozzle, 26: Spray hole.

Claims (1)

[Claims] 1. A push button that can be raised and lowered and rotated, and liquid in the container is sucked up through a valve as the push button rises, and the interior is pressurized as the push button descends. a cylinder, a first channel formed in the push button and having one end open to the cylinder and the other end open to the side surface of the push button; and a first channel communicating with the first channel and open to the outside. A joint has two flow paths and is rotatably attached to the side of the push button, and a third joint that communicates with the second flow path of the joint in which the spinner is housed and has a spray port drilled at its tip. A push-button type sprayer that includes a long nozzle that has a flow path, extends to the side of the joint, and is attached to the joint. 2. A joint fall prevention means having an annular groove and a protrusion that is engaged with the annular groove is disposed on the push button and the joint, and a first seal piece is provided at the mounting end of the joint, and a second seal piece is provided on the side of the mounting end. The push button type sprayer according to claim 1, wherein each of the seal pieces is integrally formed with the joint. 3. The push button type sprayer according to claim 1 or 2, further comprising a nozzle cap that is detachably attached to the tip of the long nose and closes the spray port. 4. A patent in which a stop means is disposed on the side of the container, which integrally includes a base that can face the tip surface of the nozzle cap, and a snap body that extends substantially perpendicularly from the base and snaps the nozzle cap. A push button type sprayer according to claim 1 or 3. 5. A patent in which a bottomed cylindrical stop means, in which a vertical groove in which the joints are aligned and a horizontal groove communicating with and perpendicular to the vertical groove are formed on the peripheral wall, is disposed on the container to cover the push button. A push button type sprayer according to claim 1 or 3.