JP2010253443A - Content release mechanism, and pump type product and aerosol type product provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce defective products by breakage during distribution and to improve fault resistance when handled by a user by strengthening a lock mechanism of a turning type trigger lever as an operation part in a content release mechanism provided with the trigger lever. <P>SOLUTION: An erroneous operation preventing member 7 for blocking/allowing the downward movement of a movable path member 2 depending on a turning position is provided with a curved planar part 7d which gets into between the trigger lever 1 and a cover body 6 and blocks the turning of the trigger lever 1. In the state of turning and setting the erroneous operation preventing member 7 at the position of blocking the operation of the trigger lever 1, a step part 7c is positioned under a vertical direction rib-like part 2c, and the curved planar part 7d gets into between the end face of a rib-like part 1c and the end face of a reinforcing rib-like part 6c. Impact force applied to the trigger lever 1 from the upper part in the state is distributed and received by the curved planar part 7d and the step part 7c, respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a content discharge mechanism for a pump-type product or an aerosol-type product having a rotary trigger lever as an operation portion, and in particular, the erroneous operation preventing member can be operated with a lock position where the trigger lever cannot be operated. The present invention relates to a content discharge mechanism including an erroneous operation preventing member that can be selectively set at a lock release position.

  This ensures that the discharge valve is kept closed even when the container falls in a stationary mode in which the user has not performed the content discharge operation, and a large amount of content upstream from the discharge valve is released. In addition to preventing spills from the outlet, the operation of switching the discharge valve to the open state during the content discharge operation is sharp and reliable.

  Examples of liquid contents to be applied include soaps, disinfectants, cosmetics, emulsions, shaving foams, hair styling foams, detergents, hair dyes, shampoos, rinses, insecticides, and the like as described below.

In this specification,
(11) The container is used to include not only the container body in which the liquid contents are stored but also the entire structure from the container body to the nozzle,
(12) The still mode is the initial operation state when the trigger lever is not operated.
(13) The operation mode is a state in which the trigger lever is operated and the contents are discharged from the nozzle to the external space.
(14) The front is on the nozzle side (left side in Fig. 1).
(15) After that, it is the side opposite to the nozzle (the right side in FIG. 1).

  Conventionally, as a mechanism for fixing the operation part of the content discharge mechanism provided with a rotary trigger lever as an operation part, a movable unit that drives a piston or a stem that reciprocates by the operation of the trigger lever by a user and releases the contents. An injection mechanism has been proposed in which a rotation-type erroneous operation preventing member that restricts reciprocation of the movable passage member is provided around the passage member (see Patent Document 1).

  In this injection mechanism, when the stopper member 25 (erroneous operation preventing member) is in the unlocked position, the rotation of the trigger lever 26 by the user's operation causes the pressing member 27 (movable path member) to move downward and the pressing member. The connected piston 21 and stem 62 are pushed down to release the contents. At this time, the abutting protrusion 27d of the pressing member 27 enters the escape recess 25e of the stopper member 25.

  When the stopper member 25 is in the locked position, the abutting protrusion 27d abuts on the step portion 25 of the stopper member 25 and the downward movement of the pressing member is prevented, so that the user rotates the trigger lever 26. I can't.

  Further, since the stopper member 25 is provided so as to be rotatable around the pressing member 27, the user can select and set the lock position / unlock position by one-hand operation while maintaining the normal ejection posture, and can be removed. There is no risk of losing the stopper member, which is often found in the content discharge mechanism provided with the type stopper member.

JP 2003-230854 A

  In this way, the pressing member 27 is prevented from moving further downward by the abutting protrusion 27d coming into contact with the step portion 25d of the stopper member 25.

  However, if the stopper member 25 remains in the unlocked position and a strong operating force in the same direction as the operation is applied to the trigger lever 26 due to the drop of the product itself or the loading of a heavy object, the abutting protrusion 27d is moved to the stopper member 25. The step part 25d may come off and enter the inside of the cylindrical part without the escape recess part 25e, and may not return.

  In addition, regardless of whether or not the abutting protrusion 27d enters or exits the cylindrical portion, when such a strong operating force is applied, the lower end of the abutting protrusion 27d is crushed by a strong abutting action on the step portion 25d. After that, even when the stopper member 25 is operated normally with the stopper member 25 in the unlocked position, the lower end and the inner surface of the relief recess 25e are fixed by friction, and the pressing member 27 moves downward. In some cases, the state could not be restored.

  Therefore, according to the present invention, not only the downward movement prevention function of the movable passage member (pressing member) but also the rotation prevention function of the trigger lever is provided in the rotation type erroneous operation prevention member (stopper member), thereby dropping the product. The purpose is to prevent failures due to loading of heavy objects and to reduce the occurrence of defective products during distribution and to improve the fault tolerance when handling users.

The present invention solves the above problems as follows.
(1) a cover body (for example, a cover body 6 which will be described later) fixed to a container main body that stores contents to be discharged to the external space;
A trigger lever for contents discharge operation (for example, trigger lever 1 described later) attached to the cover body in a rotatable manner;
By interlocking with the rotation operation of the trigger lever to the content discharge state, the valve action portion is shifted to the open state, and a movable passage member (including a discharge passage for the content flowing in from the valve action portion) ( For example, a movable passage member 2) described later,
It is possible to selectively rotate between the movable passage member and a non-operable position where the rotation operation of the trigger lever is restricted, and an operable position where the rotation operation of the trigger lever is not restricted. In the content discharge mechanism having an erroneous operation preventing member (for example, an erroneous operation preventing member 7 described later) to be set,
The erroneous operation preventing member is
Provided between the cover body, the trigger lever and the movable passage member;
When the position is set to the non-operable position, both the cover body and the movable path member are locked to prevent the movement of the movable path member. A first movement allowance setting portion (for example, a longitudinal groove portion 7b and a step portion 7c described later) for the movable passage member, in which movement of the movable passage member is allowed without shifting to the stopped state;
When the position is set to the non-operable position, the cover body and the trigger lever are both locked to prevent the trigger lever from rotating, and when the position is set to the operable position, the both sides are locked. A second moveability setting portion (for example, a curved plate-like portion 7d described later) for the trigger lever, in which the trigger lever is allowed to rotate without shifting to the state,
It is set as the member provided with.
(2) In (1) above,
The erroneous operation preventing member is
A cylindrical portion attached to the cover body in a rotatable manner, and having the first movement availability setting portion formed on a peripheral surface portion;
A rotation operation piece (for example, a knob 7a described later) formed on the outer side of the cylindrical portion for setting the inoperable position and the operable position;
The second movement availability setting part formed on the outside of the tubular part;
Consists of.
(3) In the above (1) or (2),
The erroneous operation preventing member is
The second movement enable / disable setting portion (for example, curved plate-like portions 7d and 7d ′ described later) is provided at a position facing the movable passage member with a rotation shaft interposed therebetween.

  The present invention is directed to a content release mechanism having the above-described configuration, and a pump-type product and an aerosol-type product provided with the content release mechanism.

  In the present invention, the trigger is provided in contact with the trigger lever on the erroneous operation preventing member which is provided so as to be rotatable around the movable passage member and selectively sets the blocking and non-blocking of the downward movement of the movable passage member. Since there is a restricting part that prevents the lever from rotating, it prevents the movable path member provided on the movable path member and the erroneous operation prevention member from moving down when an impact force is applied to the trigger lever due to a product drop. The burden on the part can be reduced and damage can be prevented.

FIG. 5 is an explanatory view showing a side state of the operation mechanism attached to the container body, in which (a) shows a flat state, and (b) is a stationary mode in which the erroneous operation preventing member of the content discharge mechanism is in the locked position. The erroneous operation preventing member of the contents discharge mechanism is in the unlocked position, (a) shows a planar state in the stationary mode, and (b) is an explanatory view showing a side state of the operating mechanism attached to the container body in the operation mode. is there. (A) is a perspective view of the movable passage member 2 in FIG. 1, and (b) is a perspective view of the erroneous operation preventing member 7 in FIG. It is explanatory drawing which shows the side state of the stationary mode in which the erroneous operation prevention member of the content discharge | release mechanism different from FIG. 1 is a lock position.

  The form for implementing this invention is demonstrated using FIGS. 1-4.

  In addition, it has shown that the component (for example, opening part 1a) of the reference number with an alphabet used in each figure is a part of component (for example, trigger lever 1) of the numerical part of the said reference number in principle.

1-4,
1 is a rotating trigger lever for operation mode setting operation,
1a is an opening formed on the front side upper part of the trigger lever and the top front part following the trigger lever so as to allow the nozzle 3 (movable passage member 2) described later to move up and down;
1b is a pair of holes that are formed on both side surfaces of the trigger lever on the rear side and that serve as the pivot center of the trigger lever by engaging with a shaft portion 6b described later,
1c is a rib-like portion provided in such a manner that it comes into contact with the upper end side of the curved plate-like portion 7d when the erroneous operation preventing member 7 is in the locked position;
1c ′ is a rib-shaped portion (see FIG. 4) provided in such a manner as to come into contact with the upper end side of the curved plate-shaped portion 7d ′ when the erroneous operation preventing member 7 is in the locked position.
2 is an L-shaped and cylindrical movable passage member that moves down to the operation mode position as the trigger lever 1 rotates.
2a is the inner content passage,
2b is a well-known cylindrical portion formed on the outer peripheral surface of the movable passage member for converting the rotation of the trigger lever 1 into the downward movement of the movable passage member;
2c is a longitudinal rib-like portion formed on the outer peripheral surface of the movable passage member and acting as an erroneous operation preventing (operation mode setting preventing) member in cooperation with a longitudinal groove-like portion 7b of an erroneous operation preventing member 7 described later,
3 is a nozzle attached to the front end side of the movable passage member 2 in a fitted state;
3a is a hole for outflow of contents,
4 is a container body containing liquid contents,
5 is a screw cap screwed into the opening of the container body 7;
6 is a cylindrical cover body which is integrated with a housing (not shown) to protect the movable passage member 2 and a well-known pump mechanism disposed therein;
6a is an arm-shaped part extending from the upper small diameter part of the cover body to the rear part,
6b is a pair of shaft portions that are formed on the outer surface on the upper end side of the arm-like portion and used in a state of entering the hole 1b of the trigger lever 1 and act as a central axis of rotation of the trigger lever,
6c is a reinforcing rib-shaped portion provided in such a manner as to contact the lower end side of the curved plate-shaped portion 7d when the erroneous operation preventing member 7 is in the locked position;
6d is an annular protrusion 6e that engages with an annular groove 7f, which will be described later, and is formed in an upright manner, so that one of the protrusions 7e, described later, is sandwiched to cause unintentional rotation of the erroneous operation preventing member 7. A pair of flexible pieces to prevent,
7 is attached to the upper small-diameter portion of the cover body 6 so that it can be rotated without moving up and down, and can prevent the downward movement of the movable passage member 2 according to the rotation position, that is, the operation mode setting operation can be performed. Misoperation prevention member to be lost,
7a is a knob for rotating the erroneous operation preventing member,
7b is a longitudinal groove-like portion that allows the longitudinal rib-like portion 2c of the movable passage member 2 to enter,
7c is a stepped portion that receives the lower end surface of the longitudinal rib-shaped portion 2c and prevents the movable passage member 2 from moving downward;
7d is a curved plate-like portion provided on the side opposite to the knob 7a,
7d ′ is a curved plate-like portion (see FIG. 4) provided on the upper portion of the knob 7a.
7e is a protruding portion formed at three positions on the outer peripheral surface of the erroneous operation preventing member at intervals of 90 degrees,
7f is an annular groove provided on the outer peripheral surface of the lower small diameter portion of the erroneous operation preventing member,
8 is a part of the pump mechanism, and a piston from which the contents flow out of its internal passage when pushed down;
Respectively.

  Among the above components, the trigger lever 1, the movable passage member 2, the nozzle 3, the container body 4, the screw cap 5, the cover body 6 and the erroneous operation preventing member 7 are respectively polypropylene, polyethylene, polyacetal, nylon and polybutylene terephthalate. These are made of plastic.

The basic features of the airless pump type product of FIGS.
An erroneous operation preventing member 7 that prevents / allows the downward movement of the movable passage member 2 depending on the rotation position is inserted between the trigger lever 1 on the rear side of the movable passage member 2 and the cover body 6 to rotate the trigger lever. A curved plate-like portion 7d for preventing
That is.

  In the stationary mode of FIG. 1, the erroneous operation preventing member 7 is in the locked position, the stepped portion 7c is positioned below the longitudinal rib-like portion 2c, and the curved plate-like portion 7d is shaped like an end face of the rib-like portion 1c and the reinforcing rib shape. It is in a state of being interrupted between the end face of the portion 6c.

  In this state, even when an impact force due to product dropping or the like is applied to the trigger lever 1 and the trigger lever is about to rotate, the curved plate-like portion 7d is located between the trigger lever 1 and the cover body 6. In other words, it acts as a support rod and actively prevents the trigger lever itself from rotating, so that the force to move the movable passage member 2 down due to the rotation is reduced, and the bottom of the longitudinal rib-shaped portion 2c that supports the force. The burden on the contact surface between the end surface and the stepped portion 7c is reduced.

  FIG. 2 is an operation mode in which the trigger lever 1 is pulled after the erroneous operation preventing member 7 in the stationary mode of FIG.

  When the erroneous operation preventing member 7 is set to the unlocked position, the longitudinal groove 7b is positioned below the longitudinal rib 2c instead of the step 7c, and the curved plate 7d is connected to the end surface of the rib 1c. The trigger rib 1 can be freely rotated and the movable passage member 2 can be moved downwardly from the end face of the reinforcing rib-like portion 6c.

  In the operation mode of FIG. 2 in which the trigger lever 1 is pulled and rotated counterclockwise in the figure in this state, a well-known pump mechanism (not shown) provided inside the screw cap 5 and the cover body 6 operates. The suction valve closes and the discharge valve opens.

  By this pumping action, the liquid content stored in the storage space region between the suction valve and the discharge valve passes through “the internal passage of the piston 8—the internal passage of the movable passage member 2—the internal passage of the nozzle 3”. It is discharged from the hole 3a to the external space.

  When the turning operation of the trigger lever 1 is stopped, the movable passage member 2 moves upward by the action of a coil spring (not shown) of a known pump mechanism. The trigger lever 1 is rotated in the clockwise direction in the figure by the cam action with the cylindrical portion 2b as the movable passage member 2 moves, and returns to the same position as in the stationary mode of FIG.

  When the erroneous operation preventing member 7 is rotated to the locked position, the stepped portion 7c is positioned below the longitudinal rib-like portion 2c, and the curved plate-like portion 7d is formed between the end surface of the rib-like portion 1c and the reinforcing rib-like portion 6c. 1 enters the stationary mode of FIG. 1 in which the trigger lever 1 is prevented from rotating.

  As described above, since the erroneous operation preventing member 7 and the curved plate-like portion 7d are integrally formed, the user can rotate the trigger lever 1 / movable only by rotating the knob 7a by one-hand operation while maintaining the normal ejecting posture. It is possible to set / release both locks of the passage member 2.

  The structural difference between the container discharge mechanism of FIG. 4 and that of FIGS. 1 to 3 corresponds to the addition of a new curved plate portion 7d ′ above the knob 7a and the curved plate portion. The rib-like portion 1c ′ is provided on the trigger lever 1.

  Therefore, when an impact force is applied to the front side of the ceiling surface of the trigger lever 1 from the top, the impact force is positively received by the curved plate-like portion 7d 'located almost directly below, so that the hole 1b as a fulcrum The impact force increased by the lever action of the trigger lever is not applied to the cylindrical part 2b or the curved plate part 7d.

  Further, when the trigger lever 1 is about to rotate, the erroneous operation preventing member 7 receives the rightward rotation force shown in the drawing via the curved plate-like portion 7d and the leftward rotation force shown via the curved plate-like portion 7d ′. Since they are canceled out, the operation preventing member is not twisted and the engaging portion (the annular protrusion 6d and the annular groove 7f) with the cover body 6 is not damaged.

  The present invention can also be applied to aerosol type products. In that case, the screw cap 5 may be eliminated, and the cover body 6 may be fitted to a known aerosol container body, and the release valve (stem) of the aerosol container body may be pushed down by the movable passage member 2.

Of course, the present invention is not limited to the above embodiments, for example,
(21) In FIG. 4, the curved plate-like portion 7d is omitted and only the curved plate-like portion 7d ′ is obtained.
(22) In FIG. 4, the downward surface of the knob 7a is brought into contact with the cover body 6.
(23) Protruding portions or step portions corresponding to the longitudinal rib portions 2c are provided on the erroneous operation preventing member 7, and the corresponding groove portions or slits corresponding to the longitudinal groove portions 7b and contact surfaces corresponding to the step portions 7c are provided. Are provided in the movable passage member 2
(24) The erroneous operation preventing member 7 moves together so as to contact the movable passage member 2 in the upward direction, and is formed on the upper side of the cover body 6 with a groove or slit corresponding to the longitudinal groove 7b. A contact surface corresponding to the portion 7c, and a protrusion or step corresponding to the longitudinal rib-like portion 2c corresponding to the contact surface is provided in the erroneous operation preventing member.
(25) The erroneous operation preventing member 7 moves together so as to abut against the movable passage member 2 in the upward direction, and a protrusion or step corresponding to the longitudinal rib portion 2c is provided on the upper side of the cover body 6. And providing a corresponding groove-shaped portion or slit corresponding to the vertical groove-shaped portion 7b and a contact surface corresponding to the stepped portion 7c on the erroneous operation preventing member.
You may do it.

  Pump type products and aerosol type products to which the present invention is applied include cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, Shaving foam, food, nutritional supplements (such as vitamins), quasi-drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, There are various uses such as lubricants.

  The contents stored in the container body can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, antibacterial agents such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Coolants such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

  As gas for releasing contents in aerosol products, compressed gas such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gas, and mixed gas thereof, and liquefied gas such as liquefied petroleum gas, dimethyl ether and fluorocarbon are used. .

1: Trigger lever 1a: Opening 1b: A pair of holes 1c: Rib-like part 1c ': Rib-like part (see FIG. 4)
2: movable passage member 2a: content passage 2b: cylindrical portion 2c: longitudinal rib portion 3: nozzle 3a: hole portion 4: container body 5: screw cap 6: cover body 6a: arm portion 6b: a pair Shaft portion 6c: Reinforcing rib-like portion 6d: Annular protrusion 6e: A pair of flexible pieces 7: Misoperation preventing member 7a: Knob 7b: Vertical groove-like portion 7c: Step portion 7d: Curved plate-like portion 7d ′: Curved plate-like part (see Fig. 4)
7e: protrusion 7f: annular groove 8: piston

Claims (5)

A cover body fixed to a container body containing contents to be discharged to the external space;
A trigger lever for contents discharge operation, which is pivotally attached to the cover body;
A movable passage member provided with a discharge passage for the contents flowing in from the valve action portion while moving the valve action portion to an open state by interlocking with the turning operation of the trigger lever to the content release state. ,
It is possible to selectively rotate between the movable passage member and a non-operable position where the rotation operation of the trigger lever is restricted, and an operable position where the rotation operation of the trigger lever is not restricted. In the content discharge mechanism having an erroneous operation preventing member to be set,
The erroneous operation preventing member is
Provided between the cover body, the trigger lever and the movable passage member;
When the position is set to the non-operable position, both the cover body and the movable path member are locked to prevent the movement of the movable path member. A first movement allowance setting unit for the movable passage member in a form in which movement of the movable passage member is allowed without shifting to the stop state;
When the position is set to the non-operable position, the cover body and the trigger lever are both locked to prevent the trigger lever from rotating, and when the position is set to the operable position, the both sides are locked. A second moveability setting unit for the trigger lever, in which the trigger lever is allowed to rotate without shifting to the state;
A member comprising
A content release mechanism characterized by that. The erroneous operation preventing member is
A cylindrical portion attached to the cover body in a rotatable manner, and having the first movement availability setting portion formed on a peripheral surface portion;
A rotation operation piece formed on the outside of the tubular portion for setting the inoperable position and the operable position;
The second movement availability setting part formed on the outside of the tubular part;
The content release mechanism according to claim 1, comprising: The erroneous operation preventing member is
The second movement enable / disable setting unit is provided at a position opposite to the movable passage member with a rotation shaft interposed therebetween.
The content discharge mechanism according to claim 1 or claim 2, wherein The content discharge mechanism according to any one of claims 1 to 3 is provided, and the content is accommodated.
This is a pump-type product. The content discharge mechanism according to any one of claims 1 to 3 is provided, and the jetting gas and the content are accommodated.
Aerosol type product characterized by that.

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