EP0302994B1 - Dispositif manuel de distribution du type à gachette, son procédé de montage et un dispositif à effet tourbillonnaire à utiliser dans ce dispositif de distribution - Google Patents

Dispositif manuel de distribution du type à gachette, son procédé de montage et un dispositif à effet tourbillonnaire à utiliser dans ce dispositif de distribution Download PDF

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Publication number
EP0302994B1
EP0302994B1 EP88104555A EP88104555A EP0302994B1 EP 0302994 B1 EP0302994 B1 EP 0302994B1 EP 88104555 A EP88104555 A EP 88104555A EP 88104555 A EP88104555 A EP 88104555A EP 0302994 B1 EP0302994 B1 EP 0302994B1
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EP
European Patent Office
Prior art keywords
cylinder
dispenser
piston
nozzle
dispenser body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88104555A
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German (de)
English (en)
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EP0302994A3 (en
EP0302994A2 (fr
Inventor
Atsushi Tada
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Individual
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Individual
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Publication of EP0302994A2 publication Critical patent/EP0302994A2/fr
Publication of EP0302994A3 publication Critical patent/EP0302994A3/en
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Publication of EP0302994B1 publication Critical patent/EP0302994B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3415—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with swirl imparting inserts upstream of the swirl chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1095—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with movable suction side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/005—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow
    • B05B7/0056—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns

Definitions

  • This invention relates to a manually operated trigger type dispenser which is adapted to be detachably attached to a liquid container, comprises a trigger and a cylinder having a pump chamber, said trigger being squeezed to suck up the liquid from the container into the pump chamber and to pressurize the liquid, so as to dispense the liquid.
  • the invention also relates to a method of assembling this manually operated trigger type dispenser.
  • the conventional manually operated trigger type dispenser comprises a dispenser body which is adapted to be detachably attached to the neck of a liquid container.
  • the dispenser body is molded of synthetic resin such as polyethylene, and includes an upper portion and a lower portion.
  • An actuating lever, or a trigger, is swingably pivoted to the upper portion of the dispenser body.
  • the lower portion of the dispenser body is cylindrical, and adapted to be attached to the neck of the liquid container, either directly or by a cap. The lower portion extends from the upper portion, substantially at right angles to the upper portion.
  • a cylinder defining a pump chamber is incorporated in the dispenser body.
  • An inlet conduit, which communicates with the pump chamber is provided within the dispenser body, and has an axis extending vertically.
  • An outlet conduit, which communicates with pump chamber, is provided within the dispenser body.
  • the inlet conduit is formed in the lower portion of the dispenser body and extends almost vertically
  • the outlet conduit is formed in the upper portion of the dispenser body and extends almost horizontally.
  • the axes of the inlet and outlet conduits intersect with each other, substantially at right angles.
  • the cylinder is integrally molded with the upper portion of the dispenser body, and is coaxial with the outlet conduit.
  • a piston is provided within the cylinder and coupled to the trigger. This piston reciprocates in a substantially horizontal direction as the trigger is squeezed and released.
  • U.S. Patent 3,840,157 Hellenkamp
  • U.S. Patent 4,227,650 McKinney
  • another trigger type dispenser which comprises an upper dispenser body portion having a substantially horizontal, cylindrical portion having an outlet conduit, a cylinder integrally molded with the upper dispenser body portion and extending vertically therefrom, and a piston provided within the cylinder and being able to move up and down.
  • an inlet conduit is formed within the piston, not in the lower dispenser body portion. Nonetheless, the axis of the cylinder, which is integrally molded with the upper dispenser body portion, intersects at right angles with the axis of the outlet conduit.
  • any type of a trigger type dispenser has a nozzle cap attached to the distal end of the nozzle, and a spinner interposed between the nozzle, and the nozzle cap.
  • the spinner used in the conventional dispensers is a bottomed cylinder made of synthetic resin.
  • a recess is cut in the center of the distal-end surface of the spinner.
  • a pair of grooves are cut in the distal-end surface, and extend tangent to the recess.
  • Two through holes are cut in the bottom of the spinner and extend in parallel to the axis of the spinner. These through holes connect the grooves to the fluid passage of the nozzle.
  • An orifice is made in the center of the nozzle cap, and is coaxial with the recess of the spinner.
  • the dispenser of the invention is claimed in claim 4 and its method for assembling in claim 1.
  • neither an inlet conduit nor an outlet conduit is formed in the dispenser body and a piston and a cylinder are not integrally molded with the dispenser body.
  • the dispenser body comprises an upper portion and a lower portion vertically extending from the upper portion.
  • the piston is substantially L-shaped, comprising a horizontal nozzle fixed to the upper portion of the dispenser body, and a piston body located at the lower portion of the dispenser body.
  • the cylinder is coupled with a swingable trigger and located at the lower portion of the dispenser body; it can reciprocate when the trigger is squeezed and released.
  • the inlet conduit is formed within the cylinder, whereas the outlet conduit is provided within the piston.
  • a slit is cut in the front section of the lower body portion. Thanks to this slit, the lower portion of the dispenser body is resiliently fitted in a bottle cap and, thus, connected thereto. The rear end of the trigger and the nozzle of the piston can pass through this slit.
  • the piston is engaged with the cylinder, and supports the cylinder in its lower position. i.e., the non-operation position of the cylinder.
  • Fig. 1 shows a manually operated trigger type dispenser 10 according to this invention.
  • the dispenser 10 comprises a dispenser body 12 made of synthetic resin, such as polyethylene, by means of injection molding.
  • the dispenser body 12 includes an upper body portion 14 and a lower body portion 16.
  • the lower body portion 16 extends from the upper body portion 14 in a substantially vertical direction.
  • the lower end of this body portion 16 is adapted to be detachably connected to the neck 19 of a container 18 containing the liquid to be dispensed, by means of a bottle cap 20.
  • the dispenser 10 further comprises a cylinder 22, a piston 24, and a trigger 26.
  • the cylinder, the piston, and the trigger are made of synthetic resin by means of injection molding.
  • the upper body portion 14 comprises a top portion 14a and a pair of side walls 14b.
  • the side walls 14b are integrally molded with the top portion 14a and extend downward from the lateral edges of top portion 14a.
  • the piston 24 is arranged in the gap between these side walls 14b, and the trigger 26 is swingably pivoted to the piston 24, not to the dispenser body 12.
  • the lower body portion 16 has a slit 28 in the front. The lower end of the body portion 16 is therefore resiliently bendable.
  • An engagement means 32 which is adapted to fit the lower end of the body portion 16 into the proximal end 30 of a bottomed bottle cap, is formed on the lower body portion 16, as is illustrated in Fig. 3.
  • the engagement means 32 is formed of a first engagement member 34 and a second engagement member 36.
  • the first engagement member 34 is a rib formed on the rear side of the lower body portion 16 and extends parallel to the axis of the lower body portion 16.
  • the second engagement member 36 is a flange protruding from the lower end of the body portion 16; it is positioned below the first engagement member 34 such that the proximal end 30 of the bottle cap 20 is clamped between the engagement members 34 and 36.
  • the second engagement member 36 has a lower surface 38 which is inclined, and an upper surface 39 which is horizontal and parallel to the lower surface of the proximal end 30 of the bottle cap. That portion of the second engagement member 36 which is right below the first engagement members 34 has a large notch, whereby the engagement means 32 can easily be molded.
  • the engagement members 34 and 36 can have shapes other than those shown in Figs. 2 and 3.
  • the bottle cap 20 has an internally threaded portion.
  • the neck 19 of the container 18 has an externally threaded portion.
  • the threaded portion of the bottle cap 20 can be put in screw engagement with the threaded portion of the neck 19 so that the bottle cap 20 may be detachably connected to the neck 19 of the container 18.
  • a sealing collar 42 is provided within the bottle cap 20.
  • An annular groove is cut in the top of the sealing collar 42, thus defining an inner ring 42a and an outer ring 42b which are concentric.
  • the lower end of the lower body portion 16 is fitted in the annular groove of the sealing collar 42, that is, in the gap between the rings 42a and 42b of the collar 42.
  • the upper end of the sealing collar 42 is clamped between the lower end of the lower body portion 16 and the upper end of the neck 19, whereby the lower body portion 16 is coupled to the container 18 in watertight fashion.
  • a depression 43 is cut in the inner periphery of the lower end of the lower body portion 16, and a projection 44 is fitted in the depression 43, the sealing collar 42 remains coupled to the lower body portion 16 even before the bottle cap 20 is put into screw engagement with the neck 19 of the container 18.
  • the depression 43 can be cut in the outer periphery of the inner ring 42a, in which case the projection 44 must be formed on the inner periphery of the lower end of the lower body portion 16.
  • the bottle cap 20 is pressed onto the lower body portion 16. Then, the proximal end 30 of the bottle cap 20 is guided by the lower surface 38 of the second engagement member 36, while slightly collapsing the lower end of the lower body portion 16, and slips into the gap between the first engagement member 34 and the second engagement member 36. As soon as the proximal end 30 slips into the gap between the members 34 and 36, the lower end of the lower body portion 16 restores its original shape.
  • the first engagement member 34 prevents the proximal end 30 from moving further upward.
  • the upper surface 39 of the second engagement member 36 prevents the proximal end 30 from moving downward.
  • Both the bottle cap 20 and the sealing collar 42 are connected to the dispenser body 12 before the bottle cap 20 is put into screw engagement with the neck 19 of the container 18. As will be later described, the bottle cap 20 and the sealing collar 42 are attached to the dispenser body 12, together with the piston 24, the trigger 26, and the cylinder 22.
  • a pair of engagement members 68 protrude from the back of the trigger 26, so as to abut on the stepped portion 70 of the cylinder 22. Therefore, when the trigger 26 is squeezed and swung in the direction of the arrow, as is shown in Fig. 1, the cylinder 22 is moved upward from its non-operation position (i.e., its initial position), along the piston 24. When the trigger 26 is released, it returns to its initial position due to the force of a return spring (later described).
  • the sealing collar 42 has a slender cylindrical portion 71 loosely fitted in the small-diameter section 58 of the cylinder 22. The cylinder 22 is guided by this cylindrical portion 71, and reciprocated.
  • the cylinder 22 has an open upper end.
  • the body of the piston 24, i.e., piston body 72 has its lower end inserted in the cylinder 22.
  • a flared seal 74 is integrally molded with the lower end of the piston body 72.
  • the flared seal 74 is in sliding contact with the inner periphery of the cylinder 22, and thus guides the cylinder 22 upward and downward.
  • the return spring 76 for example, a compression coil spring, is inserted in the cylinder 22, with its upper end abutting on the stepped portion 77 of the piston body 72.
  • An annular engagement member 78 which has a hook-shaped cross section, is integrally formed with the upper end of the cylinder 22, and slightly extends outwardly. As will be described later, the annular engagement member 78 engages with a hook-shaped support member integrally formed with the piston 24. Therefore, the cylinder 22 is supported by the piston 24 and located in its initial position.
  • Engagement cylinder 90 extends upward from the upper edge of the nozzle 79. This cylinder 90 is coaxial with the connecting cylinder 84.
  • a support cylinder 92 extends downward from the rear end of the nozzle 79, coaxially with the piston body 72. As is clearly shown in Fig. 9, the left half (i.e., the front section) of the support cylinder 92 is cut away.
  • a hook-shaped engagement member 94 is formed integrally with the lower end of the support cylinder 92. This member 94 is arcuate, and its hook portion protrudes from the inner periphery of the cylinder 92 and consists of two portions spaced apart from each other.
  • a pair of plates 98 are integrally formed with a hinge 99 which is the middle portion of nozzle 79.
  • a pair of hooks 97 which can engage with the proximal end 30 of the bottle cap 20, are formed integrally with the lower ends of the hinged plates 98.
  • a hole 100 is made in each lower end portion of the plate 98. Around the axis of this hole 100, the trigger 26 is swung. Two guide recesses 101 are cut in those portions of the plates 98 which are located below the hole 100.
  • the pins 69 protrude from the inner surfaces of the parallel walls of the trigger 26, and the holes 100 are made in the plates 98 of the nozzle 79.
  • the pins 69 can be formed on the inner surfaces of the plates 98, and the holes 100 can be cut in the parallel walls of the trigger 26.
  • Both plates 98 can be rotated, with the hinge 99 acting as a fulcrum. More specifically, the piston 24 molded, with the plates 98 extending horizontally as is indicated by the one-dot chain lines in Fig. 11. These plates 98 are rotated downwardly until they are positioned vertically and parallel to each other. The plates 98 must be spaced apart for such a distance that the pins 69 of the trigger 26 are reliably fitted into the holes 100. To set the plates 98 apart for this distance, an engagement cylinder 102 protrudes from the inner surface of one of the plates 98, and an engagement projection 103 protrudes from the inner surface of the other plate 98 and is fitted in the engagement cylinder 102. Therefore, the trigger 26 is pivotally attached to the piston 24 reliably.
  • the pair of plates 98 can be spaced apart from each other for the specific distance, in any other way than has been described above.
  • the nozzle 79 When the nozzle 79 is pushed up into the dispenser body 12, with engagement cylinder 106 axially aligned with the engagement cylinder 90 of the body 12, the cylinder 106 is fitted into the cylinder 90, and the engagement projections 105 are fitted into the engagement recesses 14c, respectively.
  • the nozzle 79 is attached to the dispenser body 12, being supported at two points, i.e., its front-end portion and its rear-end portion, as is illustrated in Fig. 1. No play is allowed between the dispenser body 12 and the nozzle 79.
  • the cap 110 When the cap 110 is rotated in the opposite direction, it moves backward with respect to the nozzle 79. Hence, the gap between the bottom of the nozzle cap 110 and the distal end of the spinner 112 can be adjusted by rotating the nozzle cap 110, whereby the pressurized liquid can be ejected from the orifice 113, in the form of either a spray stream or a jet stream.
  • the spinner 112 which is interposed between the nozzle 79 and the nozzle cap 110, is made of a synthetic resin.
  • a pair of liquid passages 114 (blind holes) are cut in the rear surface of the bottom of the spinner 112. These passages 114 extend parallel to the axis of the spinner 112 and set apart by 180° in the circumferential direction of the spinner 112.
  • the liquid passages 114 have a circular section. Nonetheless, one or, three or more liquid passages having any other cross section can be cut in the spinner 112, and can be differently spaced apart in the circumferential direction of the spinner 112. As is shown in Figs.
  • a circular recess 118 is made in the center of the distal surface of the spinner 112. This recess 118 communicates with, and is coaxial with, the orifice 113.
  • the circular recess 118 communicates with the liquid passages 114, at its circumference.
  • a flared seal 120 extends from the distal end of the spinner 112 and slidably contacts the inner periphery of the nozzle cap 110, whereby the cap 110 and the spinner 112 are coupled in liquid-tight fashion.
  • a venting means In order to prevent liquid-locking from occurring within the container 18, a venting means must be provided. Therefore, as is shown in Fig. 1, the stepped portion 130 of the sealing collar 42, and the stepped portion 132 of the small-diameter section 58 of the cylinder 22 are chamfered such that these chamfered portions 130 and 132 constitute a venting means.
  • the venting means secure airtight connection between the cylinder 22 and the container 18, in spite of its simple structure.
  • trigger 26 is squeezed, and the cylinder 22 is moved upward from its initial position, the stepped portion 132 moves away from the stepped portion 130 of the sealing collar 42.
  • a gap is formed between the small-diameter section 58 and the cylindrical portion 71 of the sealing collar 42.
  • the interior of the container 18 communicates with the atmosphere via this gap, whereby air flows into the container 18 through the gap, thereby preventing liquid-locking within the container 18.
  • the secondary valve 88 is mounted on the upper end of the cylinder body 72; the primary valve 64, the return spring 76, and the piston body 72 are then contained in the cylinder 22; finally, the cylinder 22 is pushed onto the nozzle 79.
  • the hook-shaped engagement member 94 pushed by the annular engagement member 78 of the cylinder 22 and is thus bent outward in the radial direction of the support cylinder 92.
  • the member 94 bends by itself to return to its initial position, due to its elasticity, and thus engages with the member 78 of the cylinder 22.
  • the hook-shaped engagement member 94 is sufficiently elastic, so that the annular engagement member 78 can easily engages with the member 94 even when the cylinder 22 is pushed up with a small force.
  • the spinner 112 and nozzle cap 110 are aligned along the horizontal axis 136 of the piston 24.
  • the nozzle cap 110 is mounted on the nozzle 79 and rotated, so as to come into screw engagement with the externally threaded portion 108 of the nozzle 79.
  • the nozzle cap 110 is mounted on the distal end of the nozzle 79, and the spinner 112 is incorporated into the nozzle 79.
  • the outlet conduit 80 which extends at right angles to the axis of the lower body portion 16, is not formed in the dispenser body 12.
  • the dispenser body 12 can be injection-molded, only by moving the movable half of the mold, without the necessity of using cores designed for forming the outlet conduit 80.
  • Three or more rows of cavities can, therefore, be cut in the stationary half of the mold, in contrast to the stationary mold 204 for forming the body of the known trigger type dispenser, which has only two rows of cavities 202, spaced apart in the direction of arrow Y, as is illustrated in Fig. 19.
  • more dispenser bodies 12 can be molded in each injection cycle.
  • the rectangles drawn in one-dot chain lines represent additional cavities 202 formed in the stationary mold 204 for forming the dispenser bodies 12.
  • the dispenser body 12 is simple in structure, it can be molded within a short injection cycle, and many dispenser bodies can be molded in each injection cycle. Hence, the dispenser body 12 can be manufactured in great quantities. Moreover, the cavities of the mold for forming the dispenser body 12 have a simple shape, the mold can be made at low cost.
  • the piston 24 can be molded, with the plates 98 extending horizontally as is indicated by the one-dot chain lines in Fig. 11. Therefore, it suffices to cut two shallow cavities in the mold for forming the nozzle 79, both being located near the parting line of the mold.
  • the piston 24 can be easily molded and, thus, in great quantities. Since the mold for forming the piston 24 has a simple structure, it can be manufactured at low cost.
  • the piston 24 is incorporated in the dispenser body 12, whereas the cylinder 22 is moved upward when the trigger 26 is squeezed, and is moved downward when the trigger 26 is released.
  • the cylinder 22 can be fixed within the dispenser body 12, and the piston 24 can be moved up and down when the trigger 26 is squeezed and released. This is because the cylinder 22 having the inlet conduit 60, and the piston 24 having the outlet conduit 80 are molded separatedly from the dispenser body 12, thereby making it possible to mold the body 12 in great quantities.
  • the piston 24, the cylinder 22, and the trigger 26 are aligned coaxially, and the cylinder 22 and the trigger 26 are attached to the piston 24, thereby easily forming the inner-element assembly 138.
  • the inner-element assembly 138 cannot be disintegrated easily.
  • the dispenser 10 can be completed, by merely pushing the bottle cap 20, the sealing collar 42, and the assembly 138 onto the dispenser body 12, while keeping them in axial alignment with the dispenser body 12.
  • the dispenser body 12 can be molded in large quantities, regardless of whether the cylinder 22 or the piston 24 is movable. However, since the movable element must be held in the initial position while the dispenser 10 is being assembled, it is desirable that the cylinder 22 be movable as in the above embodiment.
  • the inner-element assembly 138 can be assembled easily and quickly, only if the cylinder 22, the piston 24, and the trigger 26 have been aligned coaxially with one another. Once the assembly 138 has been thus formed, the dispenser 10 can be assembled, merely by aligning the dispenser body 12, the assembly 138, the bottle cap 20, and the sealing collar 42 coaxially with one another, and then couple them together. Obviously, the dispenser 10 can be assembled easily and quickly.
  • the cylinder 22 remains firmly attached to the piston 24 since the annular engagement member 78 of the cylinder 22 engages with the hook-shaped engagement member 94 of the piston 24.
  • the assembly 138 can hardly be disintegrated while it is being stored or transported.
  • the bottle cap 20 and the sealing collar 42 have relatively simple structures. They can be easily be made by injection molding, like the dispenser body 12. Besides, as has been explained, the dispenser body 12, the bottle cap 20, the sealing collar 42, and the inner-element assembly 138 can be coupled together, thus assembling the dispenser 10, by either pushing down the body 12 or pulling up the sealing collar 42. In short, it is not technically difficult to injection-molding the components of the dispenser 10, or to connecting these components, thereby to manufacture the dispenser 10. In view of this fact, the trigger type dispenser 10 according to the present invention can be manufactured easily in the industrially developing countries, as well as the industrially advanced countries.
  • the dispenser 10 can be manufactured in these remote factories in a knock-down scheme, that is, by coupling the assembly 138 and the other unfinished products, i.e., the bottle cap 20 and the sealing collar 42, with the dispenser body 12.
  • knock-down manufacture of products does not require skilled labor.
  • the trigger type dispenser 10 according to this invention can be manufactured in the knock-down scheme, even in those regions where skilled labor is hard to obtain.
  • the inner-element assembly 138 can be modified, thereby to provide various types of dispensers.
  • a tip having a foamed rubber screen, a meshed screen, or the like can be attached to the nozzle cap 110, in which case a foaming-type dispenser can be provided.
  • a foaming-type dispenser can be provided.
  • the dispenser 10 according to the present invention is completed when the suction tube 66 is fitted in the small-diameter section 58 of the cylinder 22. Needless to say, the suction tube 66 can be made easily, and can be fitted easily into the small-diameter section 58.
  • the nozzle cap 110 and the spinner 112 are combined, constituting a mechanism 140 for switching the pattern in which the pressurized liquid flows from the orifice 113.
  • the inner cylinder 122 enters the circular recess 118 of the spinner 112, and the free end of this cylinder 122 contacts the bottom 119 of the recess 118, as is illustrated in Fig. 13.
  • the liquid passages 114 are close, whereby the orifice 113 is disconnected from the outlet conduit 80 of the nozzle 79.
  • the pressurized liquid is therefore completely prevented from flowing from the passages 114 into the orifice 113 via the circular recess 118.
  • the liquid never leaks even if the trigger 26 is squeezed by error.
  • the residual liquid if any in the passages 114, dose not leak, either.
  • the cap 110 can be set in its off-position, so as to prevent the pressurized liquid from leaking. Namely, the nozzle cap 110 can be set easily in the off-position.
  • the nozzle cap 110 can cooperate with the spinner 112 to prevent the pressurized liquid from leading via the orifice 113 even if the trigger 26 is squeezed by mistake. Therefore, unlike the conventional trigger type dispenser, the dispenser 10 according to this invention need not be provided with a trigger-locking mechanism or a plug means for closing the orifice 113.
  • the dispenser 10 according to the present invention is, thus, less complex in structure than the conventional one, and is superior to the conventional dispenser in terms of outer appearance.
  • the nozzle cap 110 is in screw engagement with the externally threaded portion 108 of the nozzle 79, and moves back and forth when rotated. Instead, the nozzle cap 110 can be in sliding contact with the nozzle 79.
  • the trigger type dispenser 10 is transported for sale, with the nozzle cap 110 is held in the off-position, if the dispenser 10 is connected to the container 18 filled with a liquid.
  • the nozzle cap 110 is rotated, thereby moving it from its off-position to the left (Fig. 1). Then, as is shown in Fig. 20, the inner cylinder 122 of the cap 110 is slightly moved away from the bottom 119 of the circular recess 118 of the spinner 112. As a result, the outlet conduit 80 of the nozzle 79 is connected to the orifice 113 via the gap between the bottom 119 and the cylinder 122. In this condition, the liquid passages 114 communicate with the circular recess 118 as is illustrated in Fig. 15.
  • a part of the liquid flowing from the passages 114 into the circular recess 118 intends to flow along the outer periphery of the inner cylinder 122 and then through the gap between the inner surface of the distal end of the cap 110 and the distal end of the spinner 112.
  • the flared seal 120 blocks the flow of the liquid.
  • the nozzle cap 110 is rotated until the inner cylinder 122 abuts on the bottom 119 of the circular recess 118. Then, the cap 110 can no longer be moved father to the right. It is at this moment that the nozzle cap 110 reaches the off-position. The user can easily know that the cap 110 has been set in the off-position.
  • the flowing-pattern switching mechanism 140 can not only change the flowing-pattern of the liquid quickly, but also reliably set the nozzle cap 110 in the off-position.
  • a stopper mechanism for inhibiting the cap 110 from further rotating after it has assumed the off-position As is indicated in Fig. 22, a thin disc 114 having a stopper 143 is mounted on the nozzle 79 right behind the externally threaded portion 108. Assuming that the portion 108 is a right-handed screw, the upper edge 143a of the stopper 143 is inclined to the disc 144, and the lower edge thereof extends perpendicular to the disc 144. As is shown in Fig. 23, the nozzle cap 110 has a flange 146 connected the rear. This flange 146 has a slit, and thus has two ends 146a and 146b. The upper end 146a is inclined, whereas the lower end 146b extends in the radial direction of the flange 146.
  • Fig. 24 shows a modification of the nozzle cap 110, which is designed to foam a liquid.
  • this nozzle cap 149 has an extension cylinder 150 projecting forward from the bottom 109.
  • a truncated conical, hollow cylinder 152 is provided within the extension cylinder 150 and molded integrally therewith.
  • the cylinder 152 allows the passage of the central portion of the liquid stream ejected from the orifice 113, and blocks the other portion of the liquid stream.
  • four air-inlet ports 154 are cut in the bottom 109 of the nozzle cap 149, and spaced apart at regular intervals in the circumferential direction of intermediate cylinder 124.
  • the shape, number, and position of the air-inlet ports 154 are not limited to those shown in Fig. 25.
  • the central portion of the liquid stream ejected from the orifice 113 passes through the opening of the cylinder 152, whereas the other portion of the liquid stream abuts on the inclined inner periphery of the cylinder 152 and change into tiny liquid particles.
  • the air supplied into the cylinder 152 through the air-inlet ports 154 mixes these tiny liquid particles with the centeral portion of the liquid stream, whereby the liquid is foamed.
  • the air-inlet ports 154 and the cylinder 152 extend along the axis of the nozzle cap 149. Therefore, the mold for forming the nozzle cap 149 is simple in structure. Therefore, the nozzle cap 149 can be molded easily and, hence, at low cost.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (12)

  1. Procédé de montage d'un dispositif manuel de distribution du type à gâchette où des éléments internes comme un piston (24), un capuchon d'injecteur (110), une gâchette (26), un ressort de retour (76) et une vanne primaire (64) sont incorporés dans le corps (12) du dispositif de distribution et un capuchon (20) de bouteille est attaché à une extrémité inférieure du corps (12) du dispositif de distribution en utilisant les étapes de :
    (a) former un assemblage (138) d'éléments internes comprenant un piston (24) sensiblement en forme de L, un capuchon d'injecteur (110), une centrifugeuse (112), une gâchette (26), un cylindre (22), une vanne primaire (64) et un ressort de retour (76), en :
       attachant ledit capuchon d'injecteur (110) à une extérmité distale d'un injecteur (79), ladite centrifugeuse (112) étant couplée à l'extrémité distale de l'injecteur (79) et placée dans ledit capuchon d'injecteur (110), ledit injecteur (79) s'étendant horizontalement à partir d'un corps de piston vertical (72) pour ainsi constituer ledit piston (24), conjointement avec le corps de piston (72) ;
       reliant ladite gâchette (26) pivotante audit piston (24) ; et
       incorporant ledit cylindre (22), ladite vanne primaire (64) et ledit ressort de retour (76) dans ledit corps de piston (72) ;
    (b) agencer un corps de dispositif de distribution (12) d'un côté dudit assemblage d'éléments internes (138) et un capuchon de bouteille (20) pour coupler le corps (12) du dispositif de distribution à un col (19) d'un conteneur (18), de l'autre côté dudit assemblage d'éléments internes (138) ; et
    (c) pousser ledit capuchon de bouteille (20) sur l'extrémité inférieure dudit corps (12) du dispositif de distribution pour ainsi coupler ledit capuchon de bouteille (20) à l'extrémité inférieure dudit corps (12) du dispositif de distribution et incorporer simultanément ledit assemblage d'éléments internes (138) dans ledit corps (12) du dispositif de distribution.
  2. Procédé selon la revendication 1, où un collier d'étanchéité (42) est couplé, à l'extrémité inférieure dudit corps (12) du dispositif de distribution quand ledit capuchon (20) de la bouteille est couplé à l'extrémité inférieure dudit corps (12) du dispositif de distribution.
  3. Dispositif manuel de distribution du type à gâchette monté par le procédé de la revendication 1 ou 2.
  4. Dispositif manuel de distribution du type à gâchette dans lequel un corps de dispositif de distribution (12) fait en une résine synthétique et comprenant une portion supérieure (14) et une portion inférieure (16) s'étendant verticalement de la portion supérieure (14), est couplé à un col (19) d'un conteneur (18) au moyen d'un capuchon (20) de bouteille, un liquide est aspiré du conteneur (18) via un conduit d'entrée (60) dans une chambre de pompe (56) d'un cylindre (22) et est mis sous pression dans la chambre de pompe (56) lorsqu'une gâchette (26) est comprimée et le liquide sous pression est fourni à un injecteur (79) par un conduit de sortie (80) et est distribué par un orifice (113) coupé dans l'injecteur (79), où ledit cylindre (22) est en engagement avec ladite gâchette (26) afin d'avoir un mouvement alternatif entre une position supérieure active et une position inférieure inactive, tout en étant guidé par un piston (24) fixé dans ledit corps du dispositif de distribution (12) quand ladite gâchette (26) est comprimée et libérée ; ledit piston (24) est sensiblement en forme de L et formé d'un injecteur horizontal (79) fixé dans la portion supérieure (14) du corps (12) du dispositif de distribution et ayant une extrémité distale à laquelle est attaché un capuchon d'injecteur (110), et un corps de piston (72) agencé dans la portion inférieure (16) dudit corps de dispositif de distribution (12), s'étendant verticalement dudit injecteur (79) et adapté à guider ledit cylindre (22) ; ledit conduit de sortie (80) est prévu dans ledit piston (24) et un conduit d'entrée (60) est prévu dans ledit cylindre (22) ; ledit piston (24) engage ledit cylindre (22), pour ainsi maintenir ledit cylindre (22) à la position inactive inférieure, caractérisé en ce qu'une encoche (28) est découpée dans la section avant de la portion inférieure (16) dudit corps (12) du dispositif de distribution, permettant le passage dudit piston (24) et de l'extrémité arrière de ladite gâchette (26) qui est en engagement avec ledit cylindre (22) ; un moyen d'engagement (32) est formé à l'extrémité inférieure de la portion inférieure (16) dudit corps (12) du dispositif de distribution, pour fixer ledit corps (12) du dispositif de distribution dans ledit capuchon (20) de la bouteille, en utilisant l'élasticité impartie au corps (12) du dispositif de distribution par ladite encoche (28) ; et
       ledit piston (24) engage ledit cylindre (22) pour ainsi maintenir ledit cylindre (22) à la position inactive inférieure.
  5. Dispositif de distribution selon la revendication 4, où ledit moyen d'engagement (32) comporte une première section d'engagement (34) et une seconde section d'engagement (36) placée en dessous de la première section d'engagement (34), lesdites première et seconde sections d'engagement (34, 36) maintenant l'extrémité proximale dudit capuchon de bouteille (20).
  6. Dispositif de distribution selon la revendication 5, où ladite première section d'engagement (34) a une nervure formée au dos dudit corps (12) du dispositif de distribution et s'étendant parallèlement à l'axe de ladite partie inférieure (16) dudit corps (12) du dispositif de distribution et ladite seconde section d'engagement (36) a un rebord ayant une section inférieure inclinée (38) pour guider l'extrémité proximale dudit capuchon de bouteille (20) vers le haut et une surface supérieure (39) s'étendant sensiblement parallèlement à la surface inférieure de l'extrémité proximale dudit capuchon de bouteille (20), pour empêcher ledit capuchon de bouteille (20) de glisser dudit corps (12) du dispositif de distribution.
  7. Dispositif de distribution selon la revendication 6, où ledit rebord a une encoche en une position où le rebord coupe l'axe de ladite nervure.
  8. Dispositif de distribution selon l'une quelconque des revendications 4 à 7, comprenant de plus un collier d'étanchéité (42) qui est couplé à l'extrémité inférieure de la portion inférieure (16) dudit corps (12) du dispositif de distribution quand ledit capuchon (20) de la bouteille est connecté à la portion inférieure (16) dudit corps (12) du dispositif de distribution.
  9. Dispositif de distribution selon l'une quelconque des revendications 4 à 8, où ledit cylindre (22) a un organe d'engagement (78) en forme de crochet à son extrémité supérieure et ledit piston (24) a un cylindre de support (92) entourant ledit corps de piston (72) et ayant un organe d'engagement (94) en forme de crochet à l'extrémité inférieure, qui est en engagement avec l'organe d'engagement en forme de crochet (78) dudit cylindre (22) pour ainsi miantenir ledit cylindre (22) à sa position inférieure inactive.
  10. Dispositif de distribution selon l'une quelconque des revendications 4 à 8, où ledit piston (24) comporte une paire de plaques articulées (98) moulées intégralement avec l'injecteur (79) et supportant pivotante ladite gâchette (26), et ledit cylindre (22) a un organe d'engagement (78) en forme de crochet à son extrémité supérieure, ledit piston (24) ayant un cylindre de support (92) entourant ledit corps de piston (72) et ayant un organe d'engagement (94) en forme de crochet à son extrémité inférieure qui est en engagement avec l'organe d'engagement en forme de crochet (78) dudit cylindre (22) pour ainsi maintenir ledit cylindre (22) à sa position inactive inférieure.
  11. Dispositif de distribution selon la revendication 9 ou 10, où ledit cylindre de support( 92) dudit piston (24) a une encoche et ledit organe d'engagement (94) en forme de crochet dudit piston (24) a deux portions qui sont espacées l'une de l'autre.
  12. Dispositif de distribution selon la revendication 4, où ledit capuchon d'injecteur (110, 149) est un cylindre à fond moule en une résine synthétique et comporte un cylindre interne (122) définissant ledit orifice (113) et un cylindre intermédiaire (124) entourant le cylindre interne (122) et s'étendant vers l'arrière du fond (119) dudit capuchon d'injecteur (110) ; et une centrifugeuse (112) sous la forme d'un cylindre à fond est placée dans ledit capuchon d'injecteur (110, 149) est moulée en une résine synthétique et a des passages de liquide (114) découpés dans le fond (119) de la centrifugeuse (112) et communiquant avec le conduit de sortie (90) du piston (24) et un évidement (118) découpé dans le fond (119) de la centrifugeuse (112) s'opposant à l'orifice (113) du capuchon (110) de l'injecteur, et communiquant avec les passages de liquide (114) à sa circonférence, le fond (119) dudit évidement (118) est incapable de contacter le cylindre interne (122) dudit capuchon d'injecteur (110, 149).
EP88104555A 1987-08-11 1988-03-22 Dispositif manuel de distribution du type à gachette, son procédé de montage et un dispositif à effet tourbillonnaire à utiliser dans ce dispositif de distribution Expired - Lifetime EP0302994B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62200149A JPH0685897B2 (ja) 1987-08-11 1987-08-11 手動式トリガ−タイプディスペンサ−およびその生産方法
JP200149/87 1987-08-11

Publications (3)

Publication Number Publication Date
EP0302994A2 EP0302994A2 (fr) 1989-02-15
EP0302994A3 EP0302994A3 (en) 1990-03-14
EP0302994B1 true EP0302994B1 (fr) 1992-05-13

Family

ID=16419604

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EP88104555A Expired - Lifetime EP0302994B1 (fr) 1987-08-11 1988-03-22 Dispositif manuel de distribution du type à gachette, son procédé de montage et un dispositif à effet tourbillonnaire à utiliser dans ce dispositif de distribution

Country Status (7)

Country Link
EP (1) EP0302994B1 (fr)
JP (1) JPH0685897B2 (fr)
KR (1) KR930000399B1 (fr)
CN (1) CN1010084B (fr)
AU (3) AU610152B2 (fr)
DE (1) DE3871023D1 (fr)
ES (1) ES2031547T3 (fr)

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CA1323007C (fr) * 1988-10-03 1993-10-12 Richard B. Regan Mecanisme d'activation pour contenant de fluide pressurise et buse
US5147075A (en) * 1988-10-03 1992-09-15 Falcon Safety Products Incorporated Actuating mechanism for pressurized fluid containers and nozzle assembly
JPH03212361A (ja) * 1990-01-16 1991-09-17 Atsushi Tada シリンダ可動型トリガータイプディスペンサー
IT220413Z2 (it) * 1990-11-06 1993-09-21 Coster Tecnologie Speciali Spa Dispositivo a pompa per dosare o dispensare fluidi azionambile a mano.
US5549249A (en) * 1991-12-13 1996-08-27 Contico International, Inc. Fluid spinner and nozzle head assembly with controlled fluid flood path
DE4411031A1 (de) * 1993-07-22 1995-01-26 Meckenstock Fritz Gmbh Handhebelbetätigte Pumpe
DE29508519U1 (de) * 1995-05-23 1996-09-19 Frimec Fritz Meckenstock GmbH & Co, 42119 Wuppertal Handhebelbetätigte Pumpe
ES2143904B1 (es) * 1996-12-18 2001-01-01 Calmar Monturas Sa "dispensador"
ES2163980B1 (es) * 1999-06-15 2003-10-16 Calmar Monturas Sa Dispositivo auxiliar de comunicacion entre un mecanismo de bombeo y un recipiente y procedimiento para su fabricacion.
KR100331767B1 (ko) * 2000-04-17 2002-04-09 이상영 타조피혁 가공방법 및 타조피혁의 섬유조직 제거장치
KR100331768B1 (ko) * 2000-04-17 2002-04-09 이상영 타조피혁 가공용 스폰지 타발금형
CN100375656C (zh) * 2005-01-12 2008-03-19 黄建壮 手扣喷雾器
ITBS20120109A1 (it) * 2012-07-17 2014-01-18 Guala Dispensing Spa Dispositivo di erogazione a grilletto
ES2793900T3 (es) * 2014-02-26 2020-11-17 Dispensing Tech Bv Dispositivo dispensador de líquido que tiene una válvula de salida de precompresión
KR101661575B1 (ko) * 2014-10-22 2016-10-04 (주)연우 스프레이 오리피스 구조
JP6543100B2 (ja) * 2015-06-08 2019-07-10 キャニヨン株式会社 ポンプディスペンサ
CN107930888B (zh) * 2017-12-18 2023-03-31 市下控股有限公司 扇形、柱状出水的两段式直喷枪
JP7292142B2 (ja) * 2019-07-31 2023-06-16 株式会社吉野工業所 吐出器
CN113042245B (zh) * 2021-03-09 2022-05-17 宁波圣捷喷雾泵有限公司 一种喷枪

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US4640444A (en) * 1984-06-01 1987-02-03 Bundschuh Robert L Pump dispenser with slidable trigger
AU581041B2 (en) * 1985-12-03 1989-02-09 Atsushi Tada A manually operated trigger type dispenser

Also Published As

Publication number Publication date
CN1010084B (zh) 1990-10-24
ES2031547T3 (es) 1992-12-16
AU606009B2 (en) 1991-01-24
EP0302994A3 (en) 1990-03-14
CN1031210A (zh) 1989-02-22
KR890003445A (ko) 1989-04-14
AU1469188A (en) 1989-02-16
AU610152B2 (en) 1991-05-16
AU618693B2 (en) 1992-01-02
AU6697990A (en) 1991-01-31
DE3871023D1 (de) 1992-06-17
JPH0685897B2 (ja) 1994-11-02
KR930000399B1 (ko) 1993-01-18
JPS6443365A (en) 1989-02-15
EP0302994A2 (fr) 1989-02-15
AU5146790A (en) 1990-07-19

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