JP2011251221A - Foam ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam ejector which suitably change the form of foams without being accompanied by the complication of the structure and the complicated operations.SOLUTION: The foam ejector comprises a base installed on a vessel mouth port, a pump to pressure-feed a content liquid, a stem to drive the pump, a pressure-regulating valve arranged through a front end opening of the stem, an intermediate member having an opening formed to pass the content liquid from a housing space of the pressure-regulating valve, a tip 7 to eject the content liquid pressure-fed through the intermediate member, and a nozzle 8 provided in an ejection port Awith a mesh member 9, wherein: the tip 7 has a through-hole Aand a plurality of spin grooves 7gformed therein; the intermediate member has an end surface contacting with a partition wall back surface 7fformed thereon, has a plurality of spin grooves 6g formed thereon so as to match the spin grooves 7g, and rotatably holds a peripheral wall 7a; and the nozzle 8 varies the flow path area of the spin grooves by being rotated around a convex part of the intermediate member, and integrally has a cover 8c for gripping.

Description

  The present invention relates to a foam ejector capable of switching a foam pattern.

  For example, a liquid ejector configured by bending a stem into an L shape and including a support column and an extension includes a shell that is swingably held by an arm that rises from a base that is fixed to the mouth of the container. Some shells are formed so as to cover the stem so as to form a grip portion and drive coupled to the stem to cause a pump operation (see, for example, Patent Document 1).

JP 2002-249187 A

  However, the conventional liquid ejector is only intended for direct injection and spraying, and is not intended for foam injection.

  On the other hand, as the bubble ejector, there is one that enables the bubble ejection by causing the liquid relating to the ejection to collide with the mesh wall provided near the exit side of the ejection nozzle.

  However, this type of ejector usually has a constant foam morphology. For this reason, it is desired to provide a variable type ejector that can be changed to a rough state or a finer state (creamy foam) as needed, and the structure is complicated to cope with this. In view of the above problems, the presently-developed type foam ejector is still under development.

  An object of the present invention is to provide a foam ejector that can appropriately change the form of foam without complicated structure and complicated operation.

The foam ejector of the present invention includes a base attached to the mouth portion of the container, a pump disposed inside the base for sucking, pressurizing and pumping the content liquid of the container, and a column portion for driving the pump. A stem formed in an extension having a bent tip, a pressure regulating valve for the content liquid arranged inside through the opening at the tip of the stem, and a content space from the storage space that forms a storage space for the pressure regulating valve together with the stem An intermediate member having an opening for passing through and a concave portion held by a convex portion provided in the intermediate member, and the content liquid pumped through the concave portion and the convex portion is sprayed through the through hole. And a nozzle having a pouring portion that allows the through-hole of the tip to communicate with the outside world, and a nozzle provided with a mesh member at a spout formed at the tip of the pouring portion,
The chip has a peripheral wall that fits into the convex portion of the intermediate member, and a through hole is formed in a partition wall that seals one end of the peripheral wall.
A plurality of spin grooves extending toward the through hole and joining the through hole are formed on the back surface of the partition wall,
The intermediate member forms an end surface where the tip surface of the convex portion comes into contact with the back surface of the partition wall of the chip, and a plurality of auxiliary spin grooves are formed on the end surface so as to coincide with the spin groove formed on the back surface of the partition wall of the chip As well as
The outer peripheral surface extending from the peripheral edge of the convex portion holds the peripheral wall of the chip rotatably,
The nozzle has a peripheral wall fixed to the chip, and rotates around the convex portion of the intermediate member, whereby the flow area of the spin groove is variable.

  According to the present invention, the number of spin grooves combined with each other can be limited to those having the same depth, and of course, the same depth is set as one set, and the depth is changed for each set. It can also be configured. In this case, it is possible to finely select the form of bubbles by increasing the combination of depths. Further, according to the present invention, a grip cover can be provided integrally with the nozzle.

  According to the present invention, the means for driving the pump through the stem is not limited, but for example, an operation lever that causes the pump operation by being swingably held by an arm that stands up from the base. be able to. In addition, the tip and the nozzle can be configured as separate bodies or integrally formed.

  According to the present invention, when the user grips the nozzle and rotates the nozzle clockwise or counterclockwise around the ejection port along the circumferential direction, the spin groove formed on the back surface of the concave portion of the chip is intermediate. It coincides with the spin grooves formed on the end surface of the convex portion of the member, or alternates without matching.

  When the positions where the spin grooves coincide with each other are selected, the flow path area becomes relatively large, so that the pressure of the content pumped through the through hole of the chip is relatively low. For this reason, the content liquid sprayed from the through hole has a small spray angle and causes a coarse mist to be sprayed. Accordingly, if such a position is selected, the coarse mist passes through the mesh member without greatly diffusing, so that coarse bubbles can be injected in a narrow range.

  On the other hand, when the position where the spin grooves are shifted from each other is selected, the flow path area is reduced, so that the pressure of the content pumped through the through hole of the chip is relatively high. For this reason, the content liquid ejected from the through hole has a large spray angle and causes a fine mist to be ejected. Therefore, if such a position is selected, fine mist is diffused greatly and passes through the mesh member, so that fine bubbles can be sprayed over a wide range.

  Therefore, according to the present invention, it is possible to provide a foam ejector that can appropriately change the form of the foam without complicated structure and complicated operation.

  In addition, if a cover for gripping is provided integrally with the nozzle, the nozzle can be easily rotated, so that the foam form can be appropriately changed with good operability.

It is sectional drawing which shows the trigger type foam ejector which is one form of this invention. (a), (b) is a principal part front view which shows the nozzle in a 1st bubble pattern, respectively, and principal part sectional drawing which shows the nozzle periphery at the time of the pattern. (a), (b) is a principal part front view which shows the nozzle in a 2nd bubble pattern, respectively, and principal part sectional drawing which shows the nozzle periphery at the time of the pattern. (a), (b) is a front view showing the nozzle according to the same form, and a perspective view schematically showing an exploded state of the concave part provided in the chip and the convex part provided in the intermediate member according to the same form. It is.

  Hereinafter, with reference to drawings, a trigger type bubble ejector which is one form of the present invention is explained in detail.

  Reference numeral 1 denotes a base that is attached to the mouth of a container (not shown). The base 1 has a peripheral wall 1a that surrounds the mouth portion, and a screw portion 1s that is screwed to the mouth portion is formed inside thereof. A guide tube 1c stands up integrally with the peripheral wall 1a via an annular shoulder 1b. Further, the arm portion 1d stands integrally with the peripheral wall 1a.

Reference numeral 2 denotes a pump which is arranged inside the base 1 and hangs down toward the inside of the container through the mouth of the container. The pump 2 has a main body 2a ₁ fixed to the inside of the guide cylinder 1c, a cylinder 2a that is retained from the inside of the peripheral wall 1a via a flange 2a ₂ and is slidable inside the cylinder 2a. is disposed between the piston 2b of the inner solution suction, pressurization and pumping in the vessel by its reciprocating motion, the piston guide 2c for guiding the piston 2b, the fins 2c ₁ which is provided at the lower end of the piston guide 2c in comprising a piston 2b and the return spring S ₁ for elastically holding, disposed in the suction port a ₁ of the cylinder 2a, and a check valve 2e for preventing the backflow of contained liquid 3 is sucked into the cylinder 2a.

  Reference numeral 3 denotes a stem formed on an extension 3b having a support 3a for driving the pump 2 and having a bent end. The stem 3 can drive the pump 2 by the support 3 a passing through the inside of the guide tube 1 c and being held by the piston 2.

4 is a pressure regulating valve disposed inside through the tip opening of the stem 3. Pressure regulating valve 4, to the guide rods 5 which can advance and retreat inside the extension portion 3b, it is elastically supported via a return spring S _2.

6 is an intermediate member in which the storage space S ₂ of the pressure regulating valve 4 is formed together with the stem 3 and an opening A ₂ through which the content liquid from the storage space S ₂ passes is formed. The intermediate member 6 is integrally provided with a convex portion 6a. As shown in FIG. 4 etc., the outer peripheral surface 6f ₁ forms a cylindrical shape, and the end surface 6f _{2 of the} convex portion 6a forms a flat surface. As shown in FIG. 4 and the like, a plurality of auxiliary spin grooves 6g are formed on the end face 6f ₂ so as to cut out the outer peripheral edge thereof. Further, the intermediate member 6 is integrally provided with a cylindrical wall 6b surrounding the convex portion 6a.

7, as shown in FIG. 2 or the like, having a peripheral wall 7a which is fitted to the outer circumferential surface 6f ₁ of the convex portion 6a, one end of the peripheral wall 7a that are sealed with a septum 7b, recess n are formed Chip. The chip 7 has a through hole A ₃ formed in the partition wall 7b. Thus, the chip 7, the convex portion 6a in the concave portion n is by mating, the content liquid that has been pumped through the space between the concave n and the convex portion 6a is injected through the through hole A _3.

Further, on the back surface 7f ₂ of the partition wall 7b, a circular joining recess 7n is formed in a region including the through hole A _3, and a plurality of spin grooves 7g ₂ are formed in the through hole A ₃ toward the joining recess 7n. It is formed to communicate. Further, a plurality of long grooves 7g ₁ communicating with the spin grooves 7g ₂ are formed on the inner peripheral surface 7f ₁ of the peripheral wall 7a.

Further, the tip 7 has an outer cylinder 7c integrally extending from the outer edge of the partition wall 7b so as to surround the peripheral wall 7a, and a protrusion 7d provided on the inner side of the outer cylinder 7c over the entire circumference is provided outside the cylindrical wall 6b. By being fitted to protrusions 6d provided over the entire circumference, they are retained so as to be able to rotate in the circumferential direction. In addition, the convex portion 6 of the intermediate member 6 also holds the inner peripheral surface 7f ₁ of the peripheral wall 7a of the chip 7 so as to be rotatable in the circumferential direction by the outer peripheral surface 6f ₁ .

  Reference numeral 8 denotes a nozzle that covers the tip 7 from the front. The nozzle 8 has a peripheral wall 8a surrounding the chip 7, and the chip 7 is fixedly held inside the peripheral wall 8a. Further, the peripheral wall 8 a extends so as to surround the intermediate member 6, and an annular projection 8 d provided on the inner peripheral surface of the peripheral wall 8 a over the entire circumference extends over the entire outer periphery of the intermediate member 6. The annular projection 6p is provided so as to be rotatably held.

The nozzle 8 has a dispensing unit 8s to let through the through hole A ₃ of chip 7 to the outside world, the mesh member 9 is provided on the spout A ₄ formed in the spout section 8s. Pouring unit passages r formed inside the 8s, while leading to the outside through the spout A ₄ mesh member 9 is provided, even through the air intake 8h leading to the outside world.

  Further, the nozzle 8 according to the present embodiment is integrally provided with a shield-like cover 8c extending from the peripheral wall 8a. Thus, the user can easily rotate the nozzle 8 relative to the intermediate member 6 by gripping the cover 8c.

10, the distal end portion of the arm portion 1d erected from the base 1, that the shell 10a extends to cover the stem 3 has a shell 10a that is held swingably starting from the shaft portion P ₁ Thus, it is an operation lever that forms the grip portion 10b. The operation lever 10 is drivably coupled to the stem 3 by holding the inner peripheral surface of the shell 10 a so as to be swingable with respect to the stem 3 with the shaft portion P ₂ as a base point. Thereby, by repeating the check of the operation lever 10, the pump operation is caused by the vertical movement of the stem 3.

According to this embodiment, when the user grips the cover 8c of the nozzle 8 and rotates the nozzle 8 clockwise or counterclockwise around the outlet along the circumferential direction, the back surface 7f of the recess 7n of the chip 7 is achieved. _The spin grooves 7g ₂ formed in ₂ coincide with the spin grooves 6g formed in the end face 6f ₂ of the convex portion 6a of the intermediate member 6, or are alternately alternated.

When the positions where the spin grooves 6g and 7g ₂ coincide with each other are selected, the flow path area between the spin grooves 6g and 7g ₂ becomes relatively large as shown in FIG. The pressure of the content pumped through A ₃ is relatively low. For this reason, the content liquid injected into the filling space C from the through hole A ₃ has a small spray angle and becomes a coarse mist. Accordingly, if such a position is selected, the coarse mist will pass through the mesh member 9 without greatly diffusing, so that coarse bubbles can be injected in a narrow range.

On the other hand, when the positions where the spin grooves 6g and 7g ₂ are shifted from each other are selected, the flow path area between the spin grooves 6g and 7g ₂ becomes small as shown in FIG. The pressure of the content pumped through the through hole A ₃ is relatively high. For this reason, the content liquid injected into the filling space C from the through hole A ₃ has a large spray angle and becomes a fine mist. Therefore, if such a position is selected, fine mist is diffused greatly and passes through the mesh member 9, so that fine bubbles can be sprayed over a wide range.

  Therefore, according to the present embodiment, it is possible to provide a trigger type foam ejector that can appropriately change the form of the foam without complicated structure and complicated operations.

  In addition, if the cover 8c for gripping is provided on the nozzle 8 as in this embodiment, the nozzle 8 can be easily rotated, so that the foam form can be appropriately changed with good operability. it can.

The above description shows the preferred embodiment of the present invention, but various design changes can be made according to the application. For example, in the present embodiment, the spin grooves 6g and 7g ₂ that are combined with each other are configured only by those having the same depth. It is also possible to configure by changing. In this case, it is possible to finely select the form of bubbles by increasing the combination of depths.

  INDUSTRIAL APPLICABILITY The present invention is applied as a foam ejector for ejecting a liquid in a container in a foam state in a container containing a liquid such as a wrinkle remover, a detergent, a paste for clothes, a wax for housing, a hairdressing agent, and an aromatic. be able to.

DESCRIPTION OF SYMBOLS 1 Base 2 Pump 2a Cylinder 2b Piston 2c Piston guide 3 Stem 3a Support | pillar part 3b Extension part 4 Pressure regulating valve 5 Guide rod 6 Intermediate member 8 Nozzle 8c Grip cover 8s Extraction part 9 Mesh member 10 Operation lever S ₁ Return spring S ₂ Return spring

Claims (2)

A base that is attached to the mouth of the container, a pump that is disposed inside the base and sucks, pressurizes, and pumps the content liquid of the container, and has a support column that drives the pump, and its tip is bent. A stem formed in the extension, a pressure regulating valve for the content liquid disposed inside through the tip opening of the stem, and an opening for forming the pressure regulating valve storage space together with the stem to allow the content liquid from the storage space to pass therethrough were formed. An intermediate member, a chip having a concave portion held by a convex portion provided on the intermediate member, and a content liquid pumped through the concave portion and the convex portion are ejected through the through hole, and a through hole of the chip A nozzle provided with a mesh member in a spout formed in the pouring portion having a pouring portion that allows the hole to communicate with the outside;
The chip has a peripheral wall that fits into the convex portion of the intermediate member, and a through hole is formed in a partition wall that seals one end of the peripheral wall.
A plurality of spin grooves extending toward the through hole and joining the through hole are formed on the back surface of the partition wall,
The intermediate member forms an end surface where the tip surface of the convex portion comes into contact with the back surface of the partition wall of the chip, and a plurality of auxiliary spin grooves are formed on the end surface so as to coincide with the spin groove formed on the back surface of the partition wall of the chip As well as
The outer peripheral surface extending from the peripheral edge of the convex portion holds the peripheral wall of the chip rotatably,
The nozzle has a peripheral wall fixed to the chip, and rotates around the convex portion of the intermediate member, whereby the flow area of the spin groove is variable.   2. The foam ejector according to claim 1, wherein a grip cover is provided integrally with the nozzle.

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