JPH0721239Y2 - Small atomizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a small atomizer that sucks and sprays liquid in a container.

"Problems to be solved by conventional techniques and devices" A typical spray container of this kind is shown in Fig. 5, in which the peripheral wall 21 of the push-down head 20 attached to the upper end of the stem is shown.
An annular groove 22 having a front opening is formed in the front portion, and a front end wall of a nozzle cylinder 24 fitted to the outer surface of a rod-shaped portion 23 surrounded by the annular groove has a spin fine groove on the rear surface and a front end wall of the nozzle cylinder 24. The ejection holes 25 that communicate with the spin narrow grooves are formed in the center, respectively,
The liquid ejected by pushing down the head is sprayed from the ejection hole 25 while gradually expanding into a hollow conical shape while rotating at a high speed by passing through the spin narrow groove.

When this kind of atomizer is used as, for example, a hair spray, it is sometimes desired to spray not only the entire hair but also a part of the hair. In such a case, it is convenient if the mist ejection angle can be appropriately changed.

According to the present invention, a spin narrow groove for adjusting the spin rotation speed of the spray mist group is formed on the front end face of the rod-shaped portion so that the mist spray angle can be easily and widely changed.

[Means for Solving the Problem] In a spray container having a push-down head with a spray nozzle attached to the upper end of the stem, an annular groove 11 having a front opening is formed in the front part of the peripheral wall 2 of the push-down head 1, and A rod-shaped portion 5 surrounded by the annular groove is formed to extend forward of the peripheral wall 2, and a plurality of rectangular first spin narrow grooves 8 ... Are bored on the front end face of the extended portion.
A lateral cylinder portion 12 rotatably fitted to the outer surface of the rod portion 5
The rear surface of the front end wall 9 attached to the front end is brought into watertight contact with the front end surface of the rod-shaped portion 5, and the first spin narrow grooves 8 ... The same number as the first spin narrow grooves 4 are formed on the front surface of the front end wall 9 in front. Two spin narrow grooves 4 ... And jet holes 10 communicating with the second spin narrow grooves 4 ... are formed in the central portion of the front end wall 1 respectively, and further, the first and first outer surfaces of the front end portion of the rod-shaped portion 5 are formed. An annular communication groove 6 communicating with the two spin fine grooves 8 and 4 and a long groove 7 communicating the annular communication groove 6 and the stem are formed on the outer surface of the rod-shaped portion 5 behind the annular communication groove.

"Operation" The sprayer of the present invention is used by appropriately attaching it to the container body, and
On the other hand, by rotating the lateral tube portion 12 having the front end wall 9, the rotation speed of the mist group sprayed from the ejection holes 10 is adjusted, and the mist ejection angle is appropriately changed. That is, as shown in FIG. 3 (c), when most of the front surface of the first spin narrow groove 8 ... Is closed by the front end wall 9, a very small portion of the first spin narrow groove 8 ... Only open, and first
As can be understood from the figure, the liquid passing through the first spin fine grooves 8 ... Has to change its course substantially at a right angle in the vicinity of the narrow ejection port, and the friction resistance becomes large. Most of the liquid does not pass through the grooves 8 and passes through the second spin narrow grooves 4 and is jetted into the front end portion of the laterally-oriented cylindrical portion 12. Therefore, the liquid is jetted from the second spin thin grooves 4 at a high jet pressure. Therefore, the fog group rotates at a high speed and is sprayed from the ejection hole 10, and therefore the fog ejection angle becomes the widest as shown in FIG. 4 (c). Further, from the state shown in FIG. 3 (c), the laterally-directed tubular portion 12 is rotated with respect to the rod-shaped portion 5 so that FIG.
As shown in FIG. 4, when the jet ports on the front surface of the first spin narrow grooves 8 are opened slightly larger, the liquid is also jetted to some extent from the first spin narrow grooves 8 ... As it is dispersed and ejected from the second spin narrow grooves 8 and 4, FIG. 3 (c)
The ejection pressure is lower than that in the case where
Since the spin rotation speed of the fog group sprayed from is reduced, the mist ejection angle is narrowed as shown in FIG. 4 (b). Furthermore, the third
As shown in FIG. 7A, when all the front surfaces of the first spin narrow grooves 8 are opened, the first and second spin narrow grooves 8 and 4 are overlapped,
Since the cross-sectional area of the passage through which the liquid passes becomes large, the ejection pressure further decreases, and the number of rotations of the mist group spun out from the ejection hole 10 further decreases, as shown in FIG. 4 (a). The fog ejection angle becomes the narrowest.

"Example" 1 is a spray head, which is attached to the upper end of a stem (not shown), a peripheral wall 2 and an inner peripheral wall 3 for fitting a stem are hung from a lower surface of a top wall, and a front part of the peripheral wall 2 is provided. An annular groove 11 having a thick upper portion and a front opening formed in the thick portion.
A rod-shaped portion 5 surrounded by the extension is formed forward of the peripheral wall 2, a plurality of rectangular first spin narrow grooves 8 are bored in the front end surface of the extension portion, and the first outer surface of the rod-shaped portion 5 has a first end. An annular communication groove 6 that communicates with the spin narrow grooves 8 ... And a long groove 7 that communicates the annular communication groove 6 and the inner peripheral wall 3 are formed on the outer surface of the rod-shaped portion 5 behind the annular communication groove. . Further, a lateral cylinder portion 12 is rotatably fitted to the outer surface of the rod-shaped portion 5, and an engaging protrusion 14 attached to the rear outer surface of the lateral cylinder portion is formed on the inner surface of the front portion of the annular groove 11. Engage into the mating recess,
Prevents the horizontal tube 12 from slipping out, and
The rear surface of the front end wall 9 attached to the front end is brought into watertight contact with the front end surface of the rod portion 5, and further the first spin narrow groove 8 ... The second spin narrow groove 4 ... Front end wall 9
An ejection hole 10 communicating with the second spin narrow groove 4 ... Is formed in the central portion, and an annular groove portion 16 for communicating the second spin narrow groove 4 ... And the annular communicating groove 6 is formed on the outer peripheral portion of the rear surface of the front end wall 2. , And the rear part of the knob plate 13 standing from above the front part of the lateral tube part 12 is inserted into the shallow groove 15 formed on the outer surface of the front part of the peripheral wall 2 to rotate the lateral tube part 12. The range is regulated.

"Effects of the Invention" The present invention is configured as described above, and an annular groove 11 having a front opening is formed in the front portion of the peripheral wall 2 of the push-down head 1, and a rod-shaped portion 5 surrounded by the annular groove is provided in front of the peripheral wall 2. A plurality of rectangular first spin narrow grooves 8 are formed in the front end surface of the extended portion by extension, and are attached to the front end of the laterally-oriented cylindrical portion 12 rotatably fitted to the outer surface of the rod-shaped portion 5. The rear surface of the front end wall 9 is brought into contact with the front end surface of the rod portion 5 in a watertight manner, and the first spin narrow grooves 8 ... The same number of second spin narrow grooves 4 as the first spin narrow grooves 8 are formed on the front surface of the front end wall 9 in front.
, And a jet hole 10 communicating with the second spin narrow groove 4 in the central portion of the front end wall 1, respectively, and further, the first and second spin narrow grooves 8, on the outer surface of the front end portion of the rod portion 5. Since the annular communication groove 6 communicating with 4 and the long groove 7 communicating with the annular communication groove 6 and the stem are formed on the outer surface of the rod-shaped portion 5 behind the annular communication groove, respectively, By rotating the horizontal tube portion 12 by rotating, the rotation speed of the fog group ejected from the ejection hole 10 can be appropriately adjusted, and the fog ejection angle can be easily and widely changed. That is, as shown in FIG. 3C, when most of the front surface of the first spin narrow grooves 8 ... Is closed by the rear surface of the front end wall 9, most of the liquid does not pass through the first spin narrow grooves 8. , The liquid is ejected at a high ejection pressure from the second spin narrow grooves 4, so that the mist group is sprayed from the ejection holes 10 at a high speed. Therefore, the fog ejection angle becomes the widest, and
As shown in FIG. 3 (b), when the opening area of the first spin narrow groove 8 ...
Since it is dispersed and ejected from 4, the ejection pressure is reduced, and therefore the spin rotation speed of the fog group sprayed from the ejection hole 10 is reduced, so that the fog ejection angle is changed as shown in FIG. 4 (b). When the first spin narrow groove 8 ... And the second spin narrow groove 4 ... are overlapped as shown in FIG. 3 (a), the cross-sectional area of the passage through which the liquid passes becomes large and the ejection pressure is increased. Is further reduced,
The spin rotation speed of the fog group sprayed from the ejection holes 10 is further reduced, and the fog ejection angle is the narrowest, and as described above,
By rotating the horizontal tube portion 12 with respect to the rod portion 5, the mist ejection angle can be changed easily and in a wide range.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present sprayer,
2 is a perspective view of the spray head, and FIGS. 3 (a) and 3 (b).
FIG. 1C is a view (A) of FIG. 1 for explaining the operation of the embodiment.
A longitudinal sectional view taken along the line A, FIGS. 4 (a), (b) and (c) are views for explaining the operation of the embodiment, and FIG. 5 is a half sectional view of a conventional sprayer. 1 ... Atomizing head, 4 ... First spin narrow groove, 5 ... Rod-shaped portion 8 ... Second spin narrow groove

Claims (1)

[Scope of utility model registration request] 1. A spray container having a push-down head with a spray nozzle attached to the upper end of a stem, wherein an annular groove 11 having a front opening is formed in the front part of the peripheral wall 2 of the push-down head 1 and surrounded by the annular groove. The rod-shaped portion 5 is formed to extend forward of the peripheral wall 2, a plurality of rectangular first spin narrow grooves 8 are bored in the front end face of the extended portion, and the rod-shaped portion 5 is rotatably fitted to the outer surface thereof. The rear surface of the front end wall 9 attached to the front end of the laterally oriented cylindrical portion 12 is brought into watertight contact with the front end surface of the rod portion 5, and the first spin narrow groove 8 ... 4, the same number of second spin narrow grooves 4 ... And a jet hole 10 that communicates with the second spin narrow grooves 4 ... Are formed in the center of the front end wall 1, and the front end of the rod-shaped portion 5 is further formed. An annular communication groove 6 communicating with the first and second spin narrow grooves 8 and 4 is formed on the outer surface, and the rod-shaped portion 5 behind the annular communication groove is formed. The surface, small sprayer, characterized in that the long groove 7 communicating annular communication groove 6 and the stem and bored, respectively.