EP1317963B1 - Pulvérisateur à gâchette avec dispositif d'arrêt - Google Patents

Pulvérisateur à gâchette avec dispositif d'arrêt Download PDF

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Publication number
EP1317963B1
EP1317963B1 EP02023623A EP02023623A EP1317963B1 EP 1317963 B1 EP1317963 B1 EP 1317963B1 EP 02023623 A EP02023623 A EP 02023623A EP 02023623 A EP02023623 A EP 02023623A EP 1317963 B1 EP1317963 B1 EP 1317963B1
Authority
EP
European Patent Office
Prior art keywords
trigger
piston
stopper member
spray unit
type spray
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
EP02023623A
Other languages
German (de)
English (en)
Other versions
EP1317963A1 (fr
Inventor
Hitoshi Amano
Takashi Udagawa
Hiroyuki Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitani Valve Co Ltd
Original Assignee
Mitani Valve Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitani Valve Co Ltd filed Critical Mitani Valve Co Ltd
Publication of EP1317963A1 publication Critical patent/EP1317963A1/fr
Application granted granted Critical
Publication of EP1317963B1 publication Critical patent/EP1317963B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • 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
    • B05B11/1012—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1014—Piston pumps actuated by a lever the pump chamber being arranged substantially coaxially to the neck of the container the pump chamber being arranged substantially coaxially to the container
    • 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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • 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
    • B05B11/1042—Components or details
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position

Definitions

  • a lock member which is a stopper member is fitted to the nozzle so as to rotate.
  • the lock member is turned so that the operation portion thereof protrudes outward through a split groove thereby to prevent the trigger lever from turning.
  • both of the above sprayers have poor appearance.
  • the stopper member when the sprayers are to be used, the stopper member must be removed. Or, the stopper member is so constructed as can be easily removed. Therefore, the user often finds that the stopper member is missing.
  • the sprayer cannot be easily operated by one hand involving a problem in regard to operability.
  • JP-A-11-076886 discloses a trigger-type spray unit comprising a trigger lever, which is rotatably supported for driving a reciprocating piston.
  • a ring-type stopper is rotatably supported by a supporting shaft, which is parallel to the operation direction of the trigger. The stopper can be rotated between a work position of rotation-locking the trigger and to a non-work position, which removes the nose from the rear side of the trigger sideward so that the trigger can be rotated freely as to drive the reciprocating piston.
  • the pushing member has a hitting protuberance that hits the stopper member when the stopper member is turned to the locking position, and the stopper member has an escaping recess that escapes the hitting protuberance when the stopper member is turned to the unlocking position.
  • the stopper member is provided with a handle.
  • the stopper member is turned to the locking position and to the unlocking position with click feeling.
  • a sprayer is provided with the trigger-type spray unit.
  • Fig. 1 is a perspective view illustrating the appearance of an trigger-type spray unit for a sprayer according to the present invention
  • Fig. 2 is a vertical sectional view thereof.
  • a trigger-type spray unit P is mounted on the open portion 10a of the container 10.
  • the trigger-type spray unit P is provided with a threaded cap 12.
  • the cap 12 is internally threaded in the inner periphery thereof, and has a center hole 12b formed at the center in a top portion 12a thereof.
  • the top portion 12a is placed on a flange 13a of a cylinder 13, and is screwed onto the open portion 10a of the container via a packing which, therefore, is compressed between the top portion 12a and the open portion 10a.
  • the cylinder 13 includes three stepped portions 13b, 13c and 13d of which the diameters gradually decreasing downward in the drawing.
  • the cylinder 13 has, at an upper portion thereof, the above-mentioned flange 13a surrounding the first stepped portion 13b, has an air suction hole 13e perforated just below the flange 13a so as to penetrate through in the radial direction, and has an upper end portion 13f protruding upward through the center hole 12b in the threaded cap 12.
  • a valve seat 13g is formed at the lower inner portion of the third stepped portion 13d, the valve seat 13g having a diameter that gradually decreases downward.
  • a tubular pipe-mounting port 13h is provided continuing hereto.
  • An upper end of a suction pipe 14 is forcibly introduced into the pipe mounting-port 13h.
  • a ball-like check valve 16 is introduced into the cylinder 13, placed on the valve seat 13g and, then, a coil spring 17 is inserted therein and is placed on the third stepped portion 13d. Then, a first piston 18 is inserted in the cylinder 13 with its flange portion 18a being placed on the coil spring 17.
  • the first piston 18 has an upwardly faced annular groove 18b formed in the upper surface of the flange portion 18a, and has a plurality of longitudinal grooves 18c formed in the outer periphery thereof right above the flange portion 18a.
  • an elastic valve 20 is placed on the flange portion 18a of the first piston 18 to thereby define a cylinder chamber S in the cylinder 13.
  • the elastic valve 20 has an annular shape with its cross section being of an H-shape.
  • An outer peripheral lower end 20a of the elastic valve 20 is pushed onto the inner peripheral surface of the cylinder 13, an inner peripheral lower end 20b which is slightly shorter than the outer peripheral lower end 20a is inserted in the annular groove 18b, and an inner cylindrical portion 20c protruding upward is permitted to stay along the outer periphery of the first piston 18 maintaining a small gap a.
  • leg portions 22d extend downward from the lower end of the large diameter cylindrical portion 22c, and come into contact with the inclined outer surface 20e at the base portion of the inner cylindrical portion 20c.
  • the leg portions 22d may have an increased width b or, though not shown, may have a decreased width.
  • the number of the legs may be decreased down to two as shown in Fig. 6(C) , or may be increased though not shown.
  • the cap portion 23a is fitted so as to cover the upper end portion 13f of the cylinder 13, holds the top portion 12a to prevent the threaded cap 12 from escaping, and compresses the packing 24 between itself and the first stepped portion 13b.
  • the packing 24 is in contact with the outer peripheral upper end 20d of the elastic valve 20.
  • the cylindrical portion 23b has an annular groove 23d formed in the inner periphery at an upper portion thereof, and has a click-engaging portion 23e protruding upward from the side of the outer peripheral support portion 23c.
  • a stopper member 25 is fitted into the annular groove 23d from the upper side so as to rotate therein.
  • the stopper member 25 includes a skirt portion 25a to be fitted to the cylindrical portion 25b, a cylindrical portion 25b formed on the skirt portion 25a in concentric, and a handle 25c extending in the radial direction from the outer periphery of the cylindrical portion 25b.
  • the base end of a trigger lever 26 is attached to an end of the support portion 23c of the stop cap 23 so as to rotate.
  • the trigger lever 26 is folded at right angles, and the folded portion includes a peripheral surface portion 26b with a notch 26a and side surface portions 26c that are opposing to each other on both sides. Downwardly directed engaging recesses 26d are formed in the inner surfaces of the side surface portions 26c.
  • the engaging recesses 26d engage with engaging protuberances 27a of a pushing member 27.
  • the pushing member 27 is folded at about 90 degrees like an elbow, and is constituted by a vertical single-pipe portion 27b on the base side and a horizontal double-pipe portion 27c on the front end side. On both sides at the upper part of the single-pipe portion 27b, there are formed the above-mentioned circular engaging protuberances 27a and a slender hitting protuberance 27d extending downward therefrom.
  • the double-pipe portion 27c comprises an outer cylinder and an inner cylinder slightly protruding beyond the outer cylinder.
  • a cylindrical base end 28a of a nozzle holder 28 is fitted into between the outer cylinder and the inner cylinder.
  • a nozzle member 30 is attached to an end of the nozzle holder 28, and a nozzle 30a formed in the nozzle member 30 is communicated with a blow-out passage 27e in the inner cylinder of the double-pipe portion 27c.
  • the single-pipe portion 27b of the pushing member 27 is inserted in the cylindrical portion 25b of the stopper member 25 and in the cylindrical portion 23b of the top cap 23 so as to cover the small-diameter portion 22a and the intermediate-diameter portion 22b of the second piston 22, and the nozzle holder 28 protrudes outward through the notch 26a of the trigger lever 26.
  • the blow-out passage 27e of the pushing member 27 is communicated with the flow passage 22g in the small-diameter cylinder 22a of the second piston 22, and the engaging recesses 26d are placed on the engaging protuberances 27a.
  • the handle 25c of the stopper member 25 When not in use, the handle 25c of the stopper member 25 is directed toward a finger-touch portion 26e of the trigger lever 26 as shown in Figs. 1 and 2 , and the click protuberance 25g of the opposite side is click-engaged with the click-engaging portion 23e to maintain the stopper member 25 at the locking position. Therefore, even when the user attempts to turn the trigger lever 26 by touching the finger-touch portion 26e by his fingers, the hitting protuberances 27d of the pushing member 27 hit the stepped portion 25d of the stopper member 25, whereby the pushing member 27 is blocked from being pushed down, the trigger lever 26 is restricted from being turned, and the piston 21 is prevented from being pushed.
  • the user touches the finger-touching portion 26e with his finger and turns the trigger lever 26 counterclockwise in Fig. 10 , whereby the hitting protuberances 27d of the pushing member 27 enter into the escaping recesses 25e of the stopper member 25 enabling the pushing member 27 to be pushed down, causing the piston 21 as well as the elastic valve 20 to be pushed in overcoming the coil spring 17, and whereby the pressure in the cylinder chamber S is elevated to push up the elastic valve 20.
  • the trigger lever 26 is turned to push a pushing member down, then the pushing member 27 is pushed by the trigger lever 26 to push the piston 21.
  • the leg portions 22d of the second piston 22 are deformed to be opened outward, whereby a gap is formed between the elastic valve 20 and the first piston 18, and the inner peripheral lower end 20b of the elastic valve 20 is drawn out from the annular groove 18b in the flange portion 18a of the first piston 18.
  • the content in the cylinder chamber S is introduced into the second piston 22 through the longitudinal grooves 18c, is caused to flow into the blow-out passage 27e of the pushing member 27 through a passage 22g from the vertical grooves 22e of the second piston 22, and is sprayed to the outside at the nozzle 30a through the piston 21 and the pushing member 27.
  • the flange portion 18a of the first piston 18 comes into contact with the second stepped portion 13c of the cylinder 13 to come into a halt.
  • the pressure in the cylinder chamber S becomes negative, whereby the ball valve 16 is opened and the content in the container 10 is sucked into the cylinder chamber S through the suction pipe 14. Then, as the pressure in the cylinder chamber S assumes the atmospheric pressure, the ball valve 16 falls again on the valve seat 13g to close the suction port.
  • the content can be sprayed again through the nozzle 30a. Upon repeating this operation, the content can be sprayed any number of times until the content in the container 10 is depleted.
  • to spray means both discharging the content at the nozzle as small drops and discharging the content at the nozzle as a linear series.
  • the handle 25c is operated by a finger to turn the stopper member 25 to the locking position shown in Fig. 2 around the direction in which the piston 21 reciprocates. And the pushing member 27 is blocked from being pushed down by the stopper member 25 in order to limit the turn of the trigger lever 26.
  • the second piston 22 having leg portions 22d of a large width b as shown in Fig. 6(B) or having an increased number of leg portions 22d, or there may be used the elastic valve 20 having an outer surface 20e that is inclined at a large angle at the base portion of the inner cylindrical portion 20c, such that the leg portions 22d are deformed little and that the rise of the elastic valve 20 is suppressed with an increased force.
  • the second piston 22 having leg portions 22d of a small width b or having a decreased number of leg portions 22d as shown in Fig. 6(C)
  • the elastic valve 20 having an outer surface 20e that is inclined at a small angle at the base portion of the inner cylindrical portion 20c, such that the leg portions 22d are easily deformed and that the rise of the elastic valve 20 is suppressed with a weak force.
  • the present invention corresponding to claims 1 to 4, is concerned with a trigger-type spray unit for a trigger-type spray unit, wherein a stopper member is provided to turn between a locking position and an unlocking in the direction in which the piston reciprocates to block the pushing member from being pushed down when it has been turned to the locking position. Therefore, the stopper member is concealed by a relatively large trigger lever to improve the appearance.
  • the stopper member is mounted under the trigger lever at all times so will not to be removed, and is free from being lost. Besides, the stopper member can be easily operated by one hand featuring improved operability.
  • the pushing member has a hitting protuberance that hits the stopper member when the stopper member is turned to the locking position, and the stopper member has an escaping recess that escapes the hitting protuberance when the stopper member is turned to the unlocking position. Therefore, the pushing member is blocked from being pushed down and the blocked state is reset relying upon a simple structure.
  • the stopper member is provided with a handle which is to be operated by a finger when the stopper member is to be turned. Therefore, the stopper member can be easily turned.
  • the stopper member is turned to the locking position and to the unlocking position with click feeling, enabling the stopper member to be reliably positioned without error.

Landscapes

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

Claims (5)

  1. Unité de pulvérisation de type à déclencheur pour un pulvérisateur, ladite unité de pulvérisation de type à déclencheur (P) étant configurée pour être montée sur la partie ouverte (10a) d'une bombe (10) et étant munie de :
    une gâchette (26),
    un élément de poussée (27), et
    un piston (21), dans laquelle
    ladite gâchette (26) est supportée avec une possibilité de rotation pour pousser ledit élément de poussée (27) vers le bas pendant l'utilisation de façon à pousser vers le bas ledit piston (21), et
    dans laquelle ledit piston (21) est animé d'un mouvement de va-et-vient dans une direction prédéterminée afin de pulvériser le contenu se trouvant dans un compartiment à cylindre (S) vers l'extérieur du pulvérisateur au niveau d'une buse (30a) au travers du piston (21) et où l'élément de poussée (27) sur le piston (21) est poussé vers le bas, ainsi que pour aspirer un contenu se trouvant dans la bombe (10) dans le compartiment du cylindre (S), ladite unité de pulvérisation de type à déclencheur (P) comprenant en outre :
    un dispositif d'arrêt (25) qui est ménagé autour du piston (21) et qui peut tourner entre une position de verrouillage et une position de déverrouillage autour de la direction dans laquelle ledit piston (21) est animé du mouvement de va-et-vient, caractérisé en ce que ledit dispositif d'arrêt (25) vient en butée contre l'élément de poussée (27) et bloque celui-ci à partir du moment où il est poussé vers le bas lorsque ledit dispositif d'arrêt (25) est tourné vers la position de verrouillage.
  2. Unité de pulvérisation de type à déclencheur selon la revendication 1, dans laquelle l'élément de poussée (27) comporte une protubérance venant en contact (27d) qui heurte le dispositif d'arrêt (25) lorsque le dispositif d'arrêt (25) est tourné vers la position de verrouillage, et dans laquelle le dispositif d'arrêt (25) possède un évidement de dégagement (25e) qui se dégage de la protubérance venant en contact (27d) lorsque le dispositif d'arrêt (25) est tourné vers la position de déverrouillage.
  3. Unité de pulvérisation de type à déclencheur selon la revendication 1 ou 2, dans laquelle le dispositif d'arrêt (25) est muni d'une poignée (25c) devant être mise en oeuvre par un doigt lorsque le dispositif d'arrêt (25) doit être tourné autour de la direction dans laquelle ledit piston (21) est animé du mouvement de va-et-vient.
  4. Unité de pulvérisation de type à déclencheur selon l'une quelconque des revendications 1 à 3, dans laquelle le dispositif d'arrêt (25) est tourné vers la position de verrouillage et vers la position de déverrouillage avec une sensation de déclic autour de la direction dans laquelle ledit piston (21) est animé d'un mouvement de va-et-vient.
  5. Pulvérisateur muni d'une unité de pulvérisation de type à déclencheur selon l'une quelconque des revendications 1 à 4.
EP02023623A 2001-12-06 2002-10-18 Pulvérisateur à gâchette avec dispositif d'arrêt Expired - Lifetime EP1317963B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001373167 2001-12-06
JP2001373167 2001-12-06

Publications (2)

Publication Number Publication Date
EP1317963A1 EP1317963A1 (fr) 2003-06-11
EP1317963B1 true EP1317963B1 (fr) 2009-05-06

Family

ID=19181936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023623A Expired - Lifetime EP1317963B1 (fr) 2001-12-06 2002-10-18 Pulvérisateur à gâchette avec dispositif d'arrêt

Country Status (4)

Country Link
EP (1) EP1317963B1 (fr)
KR (1) KR100911854B1 (fr)
DE (1) DE60232219D1 (fr)
TW (1) TWI222901B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10696499B2 (en) 2014-09-17 2020-06-30 Niagara Bottling, Llc Dock door automation system and method
US11820290B2 (en) 2021-04-14 2023-11-21 Niagara Bottling, Llc Trailer alignment detection for dock automation using vision system and dynamic depth filtering
US11892818B2 (en) 2018-10-17 2024-02-06 Niagara Bottling, Llc Dock door automation systems and methods

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Publication number Priority date Publication date Assignee Title
FR2864823B1 (fr) * 2004-01-05 2006-08-18 Oreal Tete de distribution verrouillable
JP2005219003A (ja) * 2004-02-06 2005-08-18 Canyon Corp トリガー付きポンプディスペンサー
CN101218166B (zh) 2004-11-29 2011-08-17 西奎斯特完美分配器外国公司 具有锁的分配器
ITRM20050559A1 (it) 2005-11-10 2007-05-11 Emsar Spa Micropompa nebulizzatrice dotata di un elemento di copertura e di azionamento a grilletto del suo tasto erogatore.
US8322631B2 (en) 2010-05-10 2012-12-04 The Procter & Gamble Company Trigger pump sprayer having favorable particle size distribution with specified liquids
US8322630B2 (en) 2010-05-10 2012-12-04 The Procter & Gamble Company Trigger pump sprayer
JP6105273B2 (ja) * 2012-12-20 2017-03-29 株式会社三谷バルブ シャットオフトリガ機構ならびにこのシャットオフトリガ機構を備えたエアゾール式製品およびポンプ式製品
JP6140559B2 (ja) * 2013-07-18 2017-05-31 株式会社三谷バルブ シャッタートリガ機構ならびにシャッタートリガ機構を備えたエアゾール式製品およびポンプ式製品
US10406547B2 (en) 2014-09-22 2019-09-10 K&N Engineering, Inc. Sprayer nozzle support
JP6670671B2 (ja) 2016-04-28 2020-03-25 株式会社吉野工業所 吐出器
EP4201833B1 (fr) * 2017-09-20 2024-06-05 Yoshino Kogyosho Co., Ltd. Dispositif d'évacuation
CN109094982A (zh) * 2018-09-04 2018-12-28 西北农林科技大学 一种防泄漏按压式储存瓶

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US4278187A (en) * 1979-12-13 1981-07-14 Security Plastics, Inc. Trigger lock system for pump
US4373644A (en) * 1981-02-17 1983-02-15 Bennett Robert A Child resistant type trigger actuated pump dispenser
US4441633A (en) * 1981-10-26 1984-04-10 Bennett Robert A Child resistant trigger pump
JP3503780B2 (ja) * 1995-08-18 2004-03-08 株式会社吉野工業所 トリガー付き噴出器
JPH09291879A (ja) * 1996-04-26 1997-11-11 Canyon Corp ポンプディスペンサー
JPH1045154A (ja) * 1996-07-30 1998-02-17 Yoshino Kogyosho Co Ltd 液体吐出器
JP3905609B2 (ja) * 1997-09-10 2007-04-18 花王株式会社 トリガー式スプレイヤー

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10696499B2 (en) 2014-09-17 2020-06-30 Niagara Bottling, Llc Dock door automation system and method
US11511952B2 (en) 2014-09-17 2022-11-29 Niagara Bottling, Llc Dock door automation system and method
US11892818B2 (en) 2018-10-17 2024-02-06 Niagara Bottling, Llc Dock door automation systems and methods
US11820290B2 (en) 2021-04-14 2023-11-21 Niagara Bottling, Llc Trailer alignment detection for dock automation using vision system and dynamic depth filtering
US12115910B2 (en) 2021-04-14 2024-10-15 Niagara Bottling, Llc Trailer alignment detection for dock automation using vision system and dynamic depth filtering

Also Published As

Publication number Publication date
EP1317963A1 (fr) 2003-06-11
KR100911854B1 (ko) 2009-08-11
TWI222901B (en) 2004-11-01
KR20030047725A (ko) 2003-06-18
DE60232219D1 (de) 2009-06-18

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