JP5602500B2 - Trigger type bubble jet - Google Patents

Description

  The present invention relates to a trigger type foam ejector, and is intended to easily change the form of foam ejected from the ejector.

  In containers filled with liquids such as wrinkle removers and detergents, clothing paste, residential wax, hair styling agents, and fragrances, the contents in the container are blown out by repeatedly checking the operating lever. Trigger-type foam ejectors are often used, which enables efficient supply of contents.

  In such a foam ejector, a pump mechanism for sucking, pressurizing and pumping liquid is incorporated in a body to which an ejection nozzle is attached, and the pump mechanism is driven by an operation lever elastically supported by a spring member. At the same time, the liquid on the jet collided with the mesh wall provided near the exit side of the jet nozzle to form a foam. Usually, this type of jet has a fixed foam form. It is desired to provide a variable type jet that is easy to use and allows the foam to be changed to a rough or finer state (creamy foam). The present situation is that the variable type bubble ejector is still under development. For example, Patent Document 1 is referred to as an ejector that moves a body up and down together with a stem by actuating an operation lever to operate a pump mechanism and ejects liquid from an ejection nozzle disposed at the tip of the body.

JP 2002-249187 A

  The subject of this invention exists in the place which proposes the trigger type | formula bubble ejector which can change the form of a bubble, without accompanying the complexity of a structure and complicated operation.

The present invention relates to a base that is detachably fixed to a mouth portion of a container, a pump that is suspended in the mouth portion of the container via the base and sucks the contents in the container, and pressurizes and pumps the contents. A body having a stem linked to the body, forming a jetting path for the contents inside the pump, and the contents connected and held at the tip of the jetting path formed in the body and pumped through the jetting path A nozzle part for ejecting the gas from the ejection hole through the valve body, and the mesh wall part having a plurality of openings arranged in the vicinity of the ejection side of the ejection hole of the nozzle part, and the contents ejected from the ejection hole of the nozzle part An attachment that causes the contents to foam by colliding, a cover body that covers the body and is rotatably supported by a support portion that rises from the top surface of the base via a pivot, and is integrated with the cover body Concatenate and that At a trigger Shikiawa ejector with an operating lever for driving the pump by vertically moving said body with said stem by rotating the cover body hauls,
The support portion is provided with a stopper that is held via a rotation shaft and varies a check amount of the operation lever by a change in a contact portion with the cover body according to a rotation position.
The stopper is adapted to a protrusion or recess provided on at least one of the wall plate of the support part and the outer wall of the cover body, and the stopper stops the rotation of the stopper at an intermediate position within the rotatable range. Or it is a trigger type foam ejector provided with the convex.

The stopper includes a pair of side walls sandwiching the rotation shaft and a connecting portion that connects the side walls to each other. The stopper is located at an intermediate position within a range in which the rotation of the stopper can be rotated. It is desirable to provide a concave or convex to stop .

  It is desirable to provide a sandwiching plate that sandwiches the cover body from both sides and a vertical rib that abuts against the protruding end of the base and maintains the upright state of the stopper on the side wall.

  A stopper that changes the amount of check of the operating lever by changing the contact part with the cover body according to the position of rotation is arranged on the support part that rises from the base, so the amount of ejected contents can be changed easily This makes it possible to change the properties and form of the foam generated by the collision with the mesh wall. In addition, the stopper is provided with a recess or projection that fits the projection or recess provided on at least one of the wall plate of the support part and the outer wall of the cover body, and stops the rotation of the stopper. Bubbles that are constant and determined each time can be ejected, and even if a strong check force is applied to the operation lever, the shift of the rotation position of the stopper is suppressed. In addition, since it is possible to disable the operation lever by simply changing the rotation position of the stopper, it is possible to prevent inadvertent ejection of the contents with a simple operation.

  Since the stopper is provided with a pair of side walls sandwiching the rotation shaft and a connecting part that connects the side walls to each other, and a concave or convex that matches the convex or concave of the wall plate of the supporting part is provided inside the side wall. The shift of the rotation position of the stopper can be suppressed with a simple configuration.

  Since the side wall of the stopper is provided with a clamping plate that sandwiches the cover body from both sides and a vertical rib that abuts the protruding end of the base and keeps the stopper upright, the stopper rotation position is stabilized and the control lever is It is possible to suppress variations in the amount of dredging and to reliably prevent inadvertent checking of the operation lever when not in use.

It is sectional drawing in the center of the width direction about embodiment of the trigger type foam ejector according to this invention. It is a principal part side view around a stopper about the side view of FIG. It is the perspective view which showed the external appearance shape of the stopper of the ejector shown in FIG. It is the figure which showed the use condition of the trigger type bubble ejector shown in FIG. It is the figure which showed the use condition of the trigger type bubble ejector shown in FIG. It is the figure which showed other embodiment of the trigger type bubble ejector according to this invention, and is sectional drawing in the center of the width direction. It is the figure which showed the state which provided the convex part in the cover body about embodiment of the trigger type bubble ejector according to this invention, (a) is the figure which showed the minimum rotation position of the stopper, (b) FIG. 4 is a view showing an intermediate rotation position of the stopper.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view at the center in the width direction of an embodiment of a trigger-type foam ejector according to the present invention, and FIG. 2 is a side view of an essential part around a stopper in the side view of FIG. FIG. 2 is a perspective view showing an external shape of a stopper of the ejector shown in FIG. 1. In this embodiment, the + X direction shown in FIG. 1 is the front, the opposite direction is the rear, the + Y direction is the upper side, and the opposite side is the lower side. Further, the direction perpendicular to the X direction and the Y direction (Z direction in FIG. 3) is defined as the width direction.

  1 is a base. The base 1 includes a cap 1a for fixing and holding a trigger type foam ejector according to the present invention at a mouth portion of a container (not shown), a cylindrical body 1b that is erected from an upper portion of the cap 1a and coaxially disposed with the cap 1a, and a cap 1a It consists of a support portion 1c that rises from the rear and is connected to the cylindrical body 1b.

The cap 1a is formed inside a circular top plate 1a ₁ that covers the upper part of the mouth of the container, a cylindrical body 1a ₂ that hangs down from the outer periphery of the top plate 1a ₁ , and surrounds the outer periphery of the mouth of the container, and the cylindrical body 1b. And has a threaded portion 1a ₃ that is screwed to the mouth of the container. In the illustrated example, it is assumed that the container is fixedly held at the mouth portion of the container with screws, but may be engaged by undercutting.

Cylindrical body 1b rises from the opening edge of the central portion formed in the top plate 1a _1, an upper cylindrical body 1b ₁ which is a smaller diameter than the cylindrical body 1a _2, a reduced diameter from the top of the upper cylinder 1b ₁ gradually The guide tube 1b ₂ is provided with a through opening that stands up and communicates with the upper tube 1b ₁ at the upper end.

The support portion 1c protrudes rearward from the outer peripheral surfaces of the top plate 1a ₁ and the cylindrical body 1b that form the top surface of the base 1, and is provided with two wall plates 1c ₁ (pairs) arranged in parallel with a gap in the width direction. And a rear wall plate 1c ₂ that connects the wall plates 1c ₁ to each other behind the pair of wall plates 1c ₁ . _On the upper part of the pair of wall plates 1c ₁ , pivots 1c ₃ for rotating and holding a cover body, which will be described later, are projected outward in the width direction, and are the upper edges of the wall plates 1c ₁ and are cylindrical bodies 1b. and the site located between the pivot 1c _3, a groove 1c ₄ having an open upper to rotate holding the stopper to be described later is formed. On the outer side in the width direction of the wall plate 1c _1, a convex portion 1c ₅ into which a concave portion of a stopper described later is fitted is formed.

2 is a pump suspended in the mouth of the container through the base 1. The pump 2 has an open upper end, an upper portion that fits inside the upper cylindrical body 1b ₁ , and a cylindrical cylinder 2a that has a lower end opening as a suction port for contents, and can slide inside the cylinder 2a. A piston 2b that sucks, pressurizes, and pumps the contents in the container by reciprocating movement thereof, a spring 2c that elastically supports the piston 2b, and a poppet 2d that is disposed in the cylinder 2a and guides the piston 2b. And a reverse support valve 2e that is disposed in the suction port of the cylinder 2a and prevents the backflow of contents related to suction.

3 is a body which makes the main body of the ejector. The body 3 has a body main body 3a having a jetting path r formed along the longitudinal direction of the body 3 and a vertical path connected to the rear end of the body main body 3a and connected to the jetting path r. and the rear joint member 3b having r _1, is made from the stem 3c connected integrally to passage r ₁ portrait to form a stepped end surface t to the lower end of the rear joint member 3b. The outer wall of the rear end joint member 3b is connected to each other by a flat wall in which cylindrical walls located at the front and rear are arranged to face each other in the width direction. The flat wall is provided with protrusions 3b ₁ protruding outward in the width direction. The stem 3c is a cylindrical shape, the inside has an internal passage r ₂ leading to the passage r ₁ portrait.

Stem 3c of the body 3 is disposed through the through-opening of the guide tube 1b _2, have contact with the rear end of the piston 2b of the lower end is positioned within the pump 2 cylinder 2a, elastically the piston 2b The entire body 3 is pushed upward by the supporting spring 2c.

Reference numeral 4 denotes a nozzle portion that is connected to and held by the distal end portion of the body 3. The nozzle portion 4 includes a tip 4a that forms an ejection hole at the tip, and an outer annular body 4b that is detachably fixed to the outer peripheral wall of the body main body 3a by an engaging means such as an undercut, and an inside of the ejection path r The guide rod 4c ₁ is inserted into the valve body 4c having a valve portion provided at the tip thereof, and the outer annular body 4b and the body main body 3a are movably disposed between each other. An annular seal portion 4d that is maintained in a state, and a seat portion 4b ₁ that is disposed between the annular seal portion 4d and the flange portion of the guide rod 4c ₁ and is formed inside the outer annular body 4b. And a spring 4e that closes the ejection path r. Annular seal part 4d includes a trumpet-shaped large-diameter cylindrical member 4d ₁ taper is attached, has become a small-diameter cylinder 4d ₂ for integrally connecting the inside of the front end portion of the large-diameter cylindrical member 4d _1, the small-diameter the tip of the tubular body 4d ₂ is pressed against the seat 4b ₁ by the spring 4e, which is functioning as a contributing valve body ejection of the contents.

  Reference numeral 5 denotes an attachment provided at the tip of the nozzle portion 4. This attachment 5 has an annular body 5a that is detachably linked to the narrow diameter portion of the tip of the nozzle portion 4 by undercut engagement (or may be screwed), and a plurality of openings, and a distal end portion of the annular body 5a. The mesh wall portion 5b provided integrally or separately is made into a foam by making the contents ejected from the nozzle portion 4 collide with the mesh wall portion 5b of the attachment 5 and discharged to the outside. .

Reference numeral 6 denotes a cover body that covers the body 3. The cover body 6 is rotatably held via a pivot 1c _{3 of the} base 1 and is downwardly linked to a protrusion 3b ₁ provided on the outer wall of the body 3 at a position opposed to the inner wall thereof. Inverted U-shaped guide portions 6a (which may have a vertically long window hole) that are open to each other are formed inward in the width direction. A groove provided in place of the projection 3b ₁ of the body 3 may be provided with projections that links to the groove portion in the cover body 6, the projections, the guide unit, the integration of the body 3 and the cover body 6 by cooperation of the groove I am trying.

Reference numeral 7 denotes an operation lever provided integrally with the tip of the cover body 6 so as to avoid the nozzle portion 4. When the operation lever 7 is depressed, the cover body 6 connected to the operation lever 7 rotates counterclockwise around the pivot 1c ₃ and the body main body 3a and the rear end joint member 3b linked to the cover body 6 are rotated. Is pushed downward together with the stem 3c, and the piston 2b abutting on the lower end of the stem 3c slides in the cylinder 2a. By repeatedly checking the operating lever 7, the piston 2b moves in the cylinder 2a. It will reciprocate continuously.

Reference numeral 8 denotes a stopper that varies the amount of check of the operation lever 7. As shown in FIG. 3, the stopper 8 connects the side wall 8b to each other at the upper portion of the side wall 8b and a pair of side walls 8b that are integrally connected with the rotation shaft 8a interposed therebetween. A connecting portion 8c is provided. A concave portion 8b ₁ corresponding to the convex portion 1c ₅ of the wall plate 1c ₁ is provided on the inner side of the side wall 8b, and when the stopper 8 is rotated, the stopper 8 can be stopped and stopped. A concave portion may be provided instead of the convex portion 1c ₅ of the wall plate 1c _{1, and} a convex portion corresponding to the concave portion may be provided on the side wall 8b. The side wall 8b includes a circular sandwiching plate 8e continuously provided upward from a protruding piece 8d protruding outward in the width direction, and a triangular vertical rib 8b protruding forward with the same thickness as the side wall 8b. ₂ is provided. The pivot shaft 8a when mounted in the groove 1c _4, the side wall 8b is 1, a width direction outer pair of wall panels 1c ₁ located inside in the widthwise direction of the cover body 6, as shown in FIG. 2 Since the sandwiching plate 8e is located on the outer side in the width direction of the cover body 6, the rotation of the stopper 8 is not hindered. The stopper 8, because it is held across the wall plate 1c ₁ disposed in parallel at an interval, can be stably rotated without being inclined.

When the trigger type foam ejector configured as described above is attached to the mouth of the container and the stopper 8 is brought into an upright state (minimum rotation position) as shown in FIG. 1, the triangular vertical ribs 8b ₂ The lower surface of the base plate ₁ comes into contact with the tip of the guide cylinder 1b _{2 serving} as the protruding end portion of the base 1, and the lower end 6b _{1 at the} center of the lower end 6b of the cover body 6 contacts the upper end of the protruding piece 8d of the stopper 8. The check of the lever 7 can be made impossible.

The stopper 8 and the connecting portion 8c as shown in FIG. 4 is rotated to the maximum rotation position which abuts on the upper end of the wall plate 1c _1, the maximum (stopper 8牽曳amount of the operation lever 7 and the cover 6 A state of not contacting). When the operation lever 7 is depressed at this time, the body 3 is pushed together with the stem 3c by the counterclockwise rotation of the cover body 6, and the piston 2b of the pump 2 slides in the cylinder 2a. When the piston 2b reciprocates in a cylinder 2a, contents suction, pressurization, is pumped, the pressure difference due to diameter difference before and after the large-diameter cylindrical member 4d ₁ when the pressure in the ejection path r reaches a predetermined pressure in having annular seal part 4d is retracted against the biasing force of the spring 4e in which the contents pumped tip of the small diameter cylinder 4d ₂ is moved away from the seat portion 4b ₁ of the outer annular body 4b chip 4a The contents in the container are foamed and discharged continuously to the outside by repeating this operation a plurality of times.

When the operating lever 7 is checked, the guide rod 4c ₁ is pushed in the direction of ejecting the contents by the tip of the poppet 2d of the pump 2, whereby the valve body 4c moves toward the exit end of the small diameter cylinder 4d _2. In addition, a very small gap is formed between the small-diameter cylindrical body 4d ₂ and the cylinder 2a in a state where the contents have not yet been sucked into the cylinder 2a (unused state). This is for efficiently discharging the air present in the ejection path r, and the mechanism of this point can be appropriately changed, and is not limited to the illustrated one.

  When the stopper 8 is rotated to the maximum rotation position shown in FIG. 4, the pressure applied to the contents can be increased by the amount of check of the operation lever 7, so that finer bubbles are formed. Is done.

When the stopper 8 is rotated to the intermediate rotation position shown in FIG. 5 (the position where the convex portion 1c ₅ of the wall plate 1c ₁ fits into the concave portion 8b _{1 of the} stopper 8), the operation lever 7 is pulled. , the upper end of the near root bottom 6b ₂ and projecting piece 8d in pivot 1c ₃ of the lower end 6b of the cover 6 abuts,牽曳amount of the operation lever 7 is reduced. For this reason, the pressurization pressure of the contents does not increase so much, and relatively rough bubbles are generated.

When the sandwiching plate 8e is arranged so as to be sandwiched from both sides of the cover body 6, the stopper 8 is stably held, so that the wobbling (tilt) of the stopper 8 is suppressed even if the operation lever 7 is pulled strongly. The shift of the rotation position of the stopper 8 can be suppressed. At this time, it is more preferable that the protrusion 8e ₁ is provided on the inner side in the width direction of the sandwiching plate 8e so as to make point contact with the outer wall of the cover body 6 because the movement of the cover body 6 is not hindered.

The contact portion between the cover body 6 and the stopper 8 can be variously changed. For example, as shown in FIG. 6, a step portion 6c is provided on the inner wall of the cover body 6, and the step portion 6c is directed inward in the width direction. while protrudes up to the inside of the 8 side walls 8b of the side wall 8b of the stopper 8, the the case of providing the vertical ribs 8b ₃ of trapezoidal instead of triangular longitudinal ribs 8b _2, operating at an intermediate rotational position When the lever 7 to牽曳, since the front surface and the upper surface of the vertical ribs 8b ₃ step portion 6c abuts, it can be changed牽曳amount of the operation lever 7 in the embodiment described above.

Convex or concave concave stopper 8 corresponding to the convex may be provided in at least one of the outer walls of the wall panel 1c ₁ and the cover member 6 of the support portion 1c. In the example shown in FIG. 7 (a), a convex portion 6d provided on the cover body 6 in place of the convex or concave provided in the wall plate 1c ₁ of the support portion 1c, and the concave portion 8b ₁ provided holding plate 8e of the stopper 8 shows the case (it is also possible to change concave convex portion 6d of the cover 6, the recess 8b ₁ of the clamping plate 8e of the stopper 8 to the convex portion). When the stopper 8 is moved from the minimum rotation position shown in FIG. 7 (a) to the intermediate rotation position shown in FIG. 7 (b), the cover is covered as in the example shown in FIG. the upper end of the protrusion 8d of the base bottom 6b ₂ and the stopper 8 of the body 6 abuts, capable of producing a relatively coarse bubbles by reducing the牽曳amount of the operation lever 7.

  ADVANTAGE OF THE INVENTION According to this invention, the trigger type foam ejector which can change the form of foam under simple operation, without accompanying the complexity of a structure can be provided.

DESCRIPTION OF SYMBOLS 1 Base 1a Cap 1b Cylindrical body 1c Support part 2 Pump 2a Cylinder 2b Piston 2c Spring 2d Poppet 2e Reverse support valve 3 Body 3a Body body 3b Rear end joint member 3c Stem 4 Nozzle part 4a Tip 4b Outer ring body 4c Valve body 4d Ring seal Part 4e spring 5 attachment 5a annular body 5b mesh wall part 6 cover body 6a guide part 6b lower end 6c step part 7 operation lever 8 stopper 8a rotating shaft 8b side wall 8c connecting part 8d projecting piece 8e pinching plate r ejection path r ₁ passage r ₂ internal passage

Claims (3)

A base that is detachably fixed to the mouth of the container, a pump that is suspended in the mouth of the container through the base and sucks the content in the container, pressurizes and pumps, and a stem that is linked to the pump A body that forms an ejection path for the contents inside the pump, and a valve body that is connected to and held by the tip of the ejection path formed in the body and is pumped through the ejection path. And a nozzle part that is ejected from the ejection hole, and the nozzle part is disposed in the immediate vicinity of the ejection hole of the nozzle part, and the contents ejected from the ejection hole of the nozzle part are made to collide with a mesh wall part having a plurality of openings. An attachment that foams the contents; a cover body that covers the body and is rotatably supported by a support portion that rises from the top surface of the base via a pivot; and is integrally connected to the cover body; Check A trigger Shikiawa ejector with an operating lever for driving said pump by the bar member is rotated to vertically move the body with the stem,
The support portion is provided with a stopper that is held via a rotation shaft and varies a check amount of the operation lever by a change in a contact portion with the cover body according to a rotation position.
The stopper is adapted to a convex or concave provided on at least one of the side plate of the support part and the outer wall of the cover body, and the stopper stops the rotation of the stopper at an intermediate position within a rotatable range. A trigger-type bubble ejector characterized by providing a convex. The stopper includes a pair of side walls sandwiching the rotation shaft and a connecting portion that connects the side walls to each other. The stopper is located at an intermediate position within a range in which the rotation of the stopper can be rotated. The trigger type foam ejector according to claim 1, wherein a recess or a protrusion to be stopped is provided.   The trigger type foam ejector according to claim 2, wherein the side wall is provided with a sandwiching plate that sandwiches the cover body from both sides, and a vertical rib that abuts against a protruding end portion of the base to keep the stopper upright.

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