EP0872283A1 - Pulvérisateur à gâchette à l'épreuve des enfants - Google Patents

Pulvérisateur à gâchette à l'épreuve des enfants Download PDF

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Publication number
EP0872283A1
EP0872283A1 EP97106208A EP97106208A EP0872283A1 EP 0872283 A1 EP0872283 A1 EP 0872283A1 EP 97106208 A EP97106208 A EP 97106208A EP 97106208 A EP97106208 A EP 97106208A EP 0872283 A1 EP0872283 A1 EP 0872283A1
Authority
EP
European Patent Office
Prior art keywords
nozzle cap
trigger
pump
cap
trigger lever
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.)
Granted
Application number
EP97106208A
Other languages
German (de)
English (en)
Other versions
EP0872283B1 (fr
Inventor
Ingo Dipl.-Ing. Schäfer (FH)
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.)
Silgan Dispensing Systems Hemer GmbH
Original Assignee
Calmar Albert GmbH
MeadWestvaco Calmar GmbH
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 Calmar Albert GmbH, MeadWestvaco Calmar GmbH filed Critical Calmar Albert GmbH
Priority to EP97106208A priority Critical patent/EP0872283B1/fr
Priority to DE69738866T priority patent/DE69738866D1/de
Publication of EP0872283A1 publication Critical patent/EP0872283A1/fr
Application granted granted Critical
Publication of EP0872283B1 publication Critical patent/EP0872283B1/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
    • 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • 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

  • This invention relates generally to a child-resistant trigger sprayer, and more particularly to such a sprayer in which the nozzle cap is prevented from being rotated from its off position without first squeezing the trigger lever to disengage a detent on the lever from an abutment means on the cap.
  • a further child-resistant feature of the invention includes latch means removably secured to the sprayer and extending between the trigger lever and a confronting portion of the pump body for preventing trigger actuation, such that the trigger lever cannot be first squeezed to permit nozzle cap rotation until the latch means is removed.
  • a number of child-resistant trigger sprayers which serve to block the outlet orifice to resist accidental use by especially a child. At least two separate motions are required by the user to disable a lock to permit a cap to be moved into an outlet open position.
  • U.S. patent 4,346,821 discloses a child-resistant safety closure for closing the outlet of a trigger sprayer and includes an actuating tab having a tooth-like detent member formed at its lower end. The member engages a slot in the trigger lever, thereby preventing cap rotation. To rotate the cap to an outlet open position, the trigger is partially depressed to disengage the detent from the slot.
  • U.S. patent 4,516,695 discloses a child-resistant nozzle for a trigger sprayer in which a flexible lever arm depends from a nose bushing and has a forwardly projecting tab which normally engages a notch located in the nozzle cap to prevent nozzle rotation to a discharge open position unless the tab is disengaged by depressing the lever.
  • U.S. patent 5,564,604 discloses a child-resistant trigger sprayer in which the trigger lever has a projection on its front wall which abuts against a lower surface of a cantilever such that downward bending thereof is prevented.
  • the trigger lever has a projection on its front wall which abuts against a lower surface of a cantilever such that downward bending thereof is prevented.
  • the invention is carried out at low cost and high efficiency.
  • the trigger lever is provided with a forwardly projecting detent or catch on its forward wall, and abutment means are provided on the nozzle cap for arresting manual cap rotation from a discharge closed position as the detent engages the abutment wall means. Squeezing the trigger first to disengage the detent from the abutment wall means permits nozzle cap rotation from its discharge closed to a discharge open position.
  • the nozzle cap may have at least one external flat wall which comprises the abutment means preventing cap rotation in either direction about the central axis of the cap as the detent engages the flat wall in the locked, discharge closed position.
  • a rearward edge wall of the nozzle cap may be provided with an open notch having opposed side walls comprising the abutment wall means for arresting cap rotation by engagement of the detent in the locked discharge closed position.
  • Another feature of the invention includes the use of a removable latch means extending between the trigger lever and a confronting portion of the pump body to prevent trigger actuation, and thereby cap rotation, unless the latch means is first removed.
  • a trigger sprayer generally designated 10 is shown in Fig. 1 of generally known construction, the sprayer having a container closure 11 to facilitate its mounting to the neck of a container 12 of the product to be sprayed.
  • the trigger sprayer may be structured for operation essentially the same as that disclosed in U.S. Patent No. 5,114,049, and the discharge nozzle control can be structured to operate essentially the same as that disclosed in U.S. patent 4,706,888, both commonly owned herewith.
  • the sprayer has a pump body which includes a pump cylinder 13 receiving a pump piston 14 for reciprocation to therewith define a variable volume pump chamber, not shown although fully understood in this art.
  • a discharge passage 15 extends in a forward direction through the pump body, and the pump body is surrounded by a fixed shroud 16 of some suitable type.
  • the discharge barrel of the pump terminates in a nozzle end 17 on which a nozzle cap 18 is mounted for rotation in both directions about its central axis, without axial displacement.
  • the nozzle cap has a discharge orifice 19 through which liquid product is dispensed either as a stream or a spray in a normal manner upon trigger actuation.
  • the nozzle cap is generally of rectangular cross-section having four flat external walls 21, 22, 23 and 24, each containing indicia OFF, STREAM, OFF, SPRAY, respectively, and a rearward facing edge wall 25.
  • the nozzle cap is manually rotatable about its central axis between an OFF position of Figs. 1 and 2 and an on position (SPRAY or STREAM) in which the nozzle is rotated 90° from an OFF position.
  • the discharge In this OFF position the discharge is closed and in the on position the discharge is open, as in accordance with the nozzle structure disclosed in the aforenoted U.S. patent 4,706,888.
  • spraying is effected upon repeated pulls of the trigger such that, when the pump chamber is primed with liquid, the liquid in the chamber is compressed during each compression stroke and is expelled through the open discharge.
  • the discharge may be closed even upon actuation of the trigger.
  • the nozzle cap is locked in one of its OFF positions to thereby discourage an operator especially of tender years from simply rotating the cap in either direction to an on position.
  • the cap is locked in its discharge closed position by the provision of a detent or catch 26 provided on a forward wall 27 of a trigger lever 28 which is pivotally mounted on the pump body, and which has a conventional tup or tongue means 29 in bearing engagement with an outer end of the pump piston for reciprocating the same against the force of a return spring (not shown) in the conventional manner known in this art.
  • the detent extends into one of a pair of opposing open notches 31, 32 formed in edge wall 25 and respectively associated with side walls 23 and 21 each bearing the indicia OFF, as shown in the drawings.
  • the nozzle cap is therefore locked in a discharge closed position, and is prevented from being rotated into one of its discharge open positions.
  • FIG. 1 Another feature of the invention includes the provision of removable latch means generally designated 33 in Fig. 1.
  • the details of such latch means are specifically disclosed in a companion European patent application 96117045.3, filed October 24, 1996, commonly owned herewith.
  • the locking function of the nozzle cap according to the invention will be described assuming that latch means 33 is removed from the pump sprayer of Fig. 1, thereby permitting the trigger lever to be actuated upon manually squeezing the same in a known manner as external finger pressure is applied to forward wall 27 in a trigger pull position.
  • the detent engages abutment wall means on the nozzle cap in the form of a pair of opposed side walls 34, 35 of notch 31. Any attempt to rotate the nozzle cap about its central axis in either direction causes walls 34, 35 to respectively bear tightly against flat side walls 36 and 37 of the detent.
  • nozzle cap may therefore be rotated in either direction about its central axis as shown in Fig. 3 which illustrates the nozzle cap in the process of being so rotated in one direction.
  • the nozzle cap has no open notches formed in its rear edge wall, but instead the abutment wall means comprise the flat, opposing outer walls 21, 23 of the cap itself.
  • a flat upper wall 38 of the detent (Figs. 6, 7) is positioned to closely underlie outer wall 23 of the nozzle cap such that, attempts to rotate the cap about its central axis in either direction, causes wall 23 to abut against a corner 39 or 41 of the detent for locking the nozzle cap in its OFF position without the need for a cooperating open notch as in the first embodiment.
  • wall 21 comprises the abutment wall means in the same manner as described with reference to wall 23.
  • the pump sprayer may otherwise have a nozzle cap 42 of generally circular cross-section as shown in Fig. 5 in which the discharge is closed in the manner disclosed in U.S. patent 4,204,614, commonly owned herewith.
  • the nozzle cap is screw threaded to the pump body for rotation to an on position upon rotation of the nozzle in a predetermined direction about its central axis.
  • Nozzle 42 has in its rearward edge wall an open notch 31 for locking the cap in its discharge closed position as detent 26 extends into the open notch for engaging the opposing side walls thereof, similarly as described with reference to Fig. 2. Again, with latch means 33 removed from the sprayer, a slight squeeze of the trigger moves the detent outwardly of the open notch freeing the nozzle cap for rotation from a discharge closed position to a discharge open position.
  • Latch means 33 has a plate 43 extending between the underside of the trigger lever and a confronting portion of the pump body, such as the pump cylinder.
  • the latch means is removably secured to tongue means 29 by the provision of a pair lever arms 44 (only one shown in Fig. 1) having catches (not shown) engaging the tongue means and being spring biased in place as shown in Fig. 1. Movement of the free ends of the lever arms together releases them from the tongue means to permit removal of the catch, all as described in more detail in the aforementioned European patent application.
  • catch means 33 prevents the operator from unlocking the nozzle cap without first removing the catch means from the trigger sprayer followed by a slight squeeze of the trigger lever. Only then can the nozzle cap be rotated into one of its on positions.
  • Detent 26 may be molded with the trigger lever so as to form an integral part thereof, or may be in the form of a separate pins or the like.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP97106208A 1997-04-16 1997-04-16 Pulvérisateur à gâchette à l'épreuve des enfants Expired - Lifetime EP0872283B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97106208A EP0872283B1 (fr) 1997-04-16 1997-04-16 Pulvérisateur à gâchette à l'épreuve des enfants
DE69738866T DE69738866D1 (de) 1997-04-16 1997-04-16 Kindergesicherter Zerstäuber vom Triggertyp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97106208A EP0872283B1 (fr) 1997-04-16 1997-04-16 Pulvérisateur à gâchette à l'épreuve des enfants

Publications (2)

Publication Number Publication Date
EP0872283A1 true EP0872283A1 (fr) 1998-10-21
EP0872283B1 EP0872283B1 (fr) 2008-07-30

Family

ID=8226699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106208A Expired - Lifetime EP0872283B1 (fr) 1997-04-16 1997-04-16 Pulvérisateur à gâchette à l'épreuve des enfants

Country Status (2)

Country Link
EP (1) EP0872283B1 (fr)
DE (1) DE69738866D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022059476A1 (fr) * 2020-09-15 2022-03-24 花王株式会社 Pulvérisateur de liquide à gâchette
JP7431127B2 (ja) 2020-08-28 2024-02-14 株式会社吉野工業所 ポンプ式注出具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516695A (en) * 1981-02-09 1985-05-14 The Afa Corporation Child-resistant liquid dispenser sprayer or like apparatus
US4946074A (en) * 1989-06-15 1990-08-07 Calmar, Inc. Tamper evident manually actuated pump sprayer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516695A (en) * 1981-02-09 1985-05-14 The Afa Corporation Child-resistant liquid dispenser sprayer or like apparatus
US4946074A (en) * 1989-06-15 1990-08-07 Calmar, Inc. Tamper evident manually actuated pump sprayer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7431127B2 (ja) 2020-08-28 2024-02-14 株式会社吉野工業所 ポンプ式注出具
WO2022059476A1 (fr) * 2020-09-15 2022-03-24 花王株式会社 Pulvérisateur de liquide à gâchette
JP2022048500A (ja) * 2020-09-15 2022-03-28 花王株式会社 トリガー式液体噴出器
JP7101734B2 (ja) 2020-09-15 2022-07-15 花王株式会社 トリガー式液体噴出器

Also Published As

Publication number Publication date
EP0872283B1 (fr) 2008-07-30
DE69738866D1 (de) 2008-09-11

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