JP2010105739A - Stopper of pump for container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stopper of a pump for a container capable of locking a press head exactly without damaging a standing-up attitude and having a virgin proof function. <P>SOLUTION: The stopper includes the lower end of the press head of the pump dispensing a content of the container and a circumferential wall 3c having end surfaces 3a and 3b abutting on the upper end 2a of a base 2 of the pump respectively and enclosing a tubular body 2b of the base 2 located between the end surfaces, and the circumferential wall 3c is provided with an insertion gate 4 through which the tubular body 2b is passed to be located within the circumferential wall 3c, a pair of right and left door walls 5a and 5b swingably held by the ends of the insertion gate 4 respectively and closing the gate 4 by inseparably butting the swingable ends, and a weakened part mounted along the up-down direction of the circumferential wall 3c and forming the gate 4 for removing the stopper by tearing of a part of the circumferential wall 3c from the position as a start point. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a stopper suitable for being applied to a container pump (liquid dispensing pump) for dispensing the contents in a container by repeatedly pressing a pressing head, and whether or not unauthorized opening has been made. A discriminating virgin function is provided, and the pressing head is surely locked without causing the pressing head to fall down.

  In a container equipped with a priming type pump that pours out the contents by repeatedly pushing the pressure head, the contents of the pressure head can be prevented from preventing the contents from being inadvertently discharged and being illegally opened. Whether a C-shaped stopper that is detachable by elastic deformation is attached between the lower end and the base, and whether a tampering or opening has been performed by attaching a shrink label or tack seal from the outside A virgin function is provided so that it can be judged visually (for example, refer to Patent Document 1).

  By the way, this kind of stopper adds an extra step of sticking the seal, so there is a limit to improving the productivity, and the pressing head faces the notch of the stopper when sticking the seal. There is a concern that the product may be collapsed and the appearance of the product may be damaged, and a solution has been desired.

Japanese Utility Model Publication No. 63-33646

  An object of the present invention is to propose a stopper for a container pump provided with a virgin function that can reliably lock the pressing head without causing the pressing head to fall down.

The present invention has a press head lower end of a pump for pouring the contents in a container and an end surface that abuts against the upper end of the pump base, and a base cylinder located between them. A stopper with a surrounding wall,
An insertion gate that passes through the pump stem and is positioned on the inner side of the peripheral wall on the peripheral wall, and is swingably held at each end of the insertion gate. A pair of left and right door walls that close the door, and a weakening portion that is provided along the vertical direction of the peripheral wall, and that forms a gate that partially removes the peripheral wall from the site to remove the entire peripheral wall. This is a stopper for a container pump.

  In the stopper according to the present invention, the weakened portion can be constituted by a hinge that holds the pair of left and right door walls in a swingable manner. Further, the weakened portion can be formed by at least one notch groove portion that is provided separately from the hinge and extends toward the end faces of the peripheral walls.

  It is preferable that a wall portion is provided at a position opposite to the door wall by forming two notched groove portions at an interval, and a stopper removal gate is formed by tearing the wall portion starting from the notched groove portion.

  In addition, the upper end of the peripheral wall (the end surface that contacts the lower end of the pressing head) can be provided with a knob for gripping when the peripheral wall is partially torn. In particular, the lower end is integrally connected to the upper end surface of the peripheral wall. An upright piece whose part is a free end and warps in a direction away from the peripheral wall of the pressing head is applied.

  It is desirable to provide a pressing member on the inner surface of the peripheral wall for abutting the cylinder and positioning the stopper with respect to the cylinder and preventing rattling.

  Further, each of the pair of left and right door walls can be provided with L-shaped vertical ribs that allow the rocking ends to be butted together. The knob part is formed.

  Since the stopper of the container pump according to the present invention surrounds the entire circumference of the base cylinder (or pump stem), the pressing head is not tilted and locked. In addition, the stopper can be removed by partially tearing the peripheral wall starting from the weakened part formed on the peripheral wall, so it is possible to grasp at a glance whether it has been opened illegally, and shrink labels and tacks that lead to reduced productivity The sticking of a seal etc. becomes unnecessary.

(A) (b) is the figure which showed the embodiment of the stopper according to this invention in the state attached to the priming discharger. (A) and (b) are the external appearance perspective views of the stopper shown in FIG. (A)-(c) is the figure which showed the attachment and removal state of the stopper shown in FIG. It is the figure which showed other embodiment of the stopper according to this invention. (A)-(c) is the figure which showed the modification of the stopper according to this invention. (A) (b) is the figure which showed other embodiment of the stopper according to this invention. (A) and (b) are the external appearance perspective views of the stopper shown in FIG.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIGS. 1 (a) and 1 (b) are views showing an embodiment of a stopper according to the present invention attached to a liquid dispensing pump equipped with a pressing head. FIGS. 2 (a) and 2 (b) are views. It is an external appearance perspective view of the stopper before mounting (at the time of molding) and after mounting.

  In the figure, reference numeral 1 denotes a pressing head of a liquid dispensing pump, and 2 denotes a base for holding the pump together with the pressing head 1. The base 2 is formed of a cap-like member, and a screw portion is provided on the inner peripheral wall portion thereof, so that the base 2 can be attached to and detached from the screw portion formed in the mouth portion of the container.

  Reference numeral 3 denotes a stopper. The stopper 3 includes a peripheral wall 3c that has end surfaces 3a and 3b that are in contact with each other between the lower end 1a of the pressing head and the upper end 2a of the base 2, and surrounds a cylindrical body (including a pump stem, see FIG. 6) 2b. ing. The peripheral wall 3c may be in contact with the entire circumference of the cylindrical body 2b or may be in contact at a plurality of locations.

Reference numeral 4 denotes an insertion gate for passing the pump stem and positions the cylinder 2b inside the peripheral wall 3 (see FIG. 2A). Reference numerals 5a and 5b denote hinges h at each end of the insertion gate 4, respectively. This is a door wall that is swingably held. The door walls 5a and 5b close the insertion gate 4 by abutting the swinging ends 5a ₁ and 5b ₁ together.

Vertical ribs 6 forming an L-shape provided on the oscillating end 5a ₁ of Tobirakabe 5a, 7 are longitudinal ribs forming an L-shape provided on the oscillating end 5b ₁ of Tobirakabe 5b.

  Reference numeral 8 denotes a convex portion provided on the front wall of the vertical rib 6, and 9 denotes a hole provided on the front wall of the vertical rib 7 and fitted into the convex portion 8. When the insertion gate 4 is closed, when the convex portion 8 is fitted into the hole 9, the door walls 5a and 5b are made to be a fitting type that cannot be separated, thereby reliably preventing the pressing head 1 from being pushed.

  Reference numeral 10 denotes a U-shaped wall portion provided at a position facing the door walls 5a and 5b. The wall portion 10 forms a part of the peripheral wall 3c, and includes a back wall 10a and short side walls 10b and 10c that are provided on both sides of the back wall 10a and are connected to the peripheral wall 3c via weakened portions t. Here, the weakened portion t is shown as an example formed by a notch groove portion extending toward the end surfaces (up and down) of the peripheral wall 3c.

  Reference numeral 11 denotes a knob provided integrally with the upper end surface of the back wall 10a. The knob portion 11 is composed of an upright piece whose lower end portion is integrally connected to the upper end surface of the rear wall 10a and whose upper end portion is a free end. The knob is placed in a direction away from the pressing head 1 by placing a finger on the knob portion 11. By pulling down the portion 11, the wall portion 10 can be torn off starting from the weakened portion t.

  Reference numeral 12 denotes a T-shaped pressing member provided integrally with the inner surface of the back wall 10a. The pressing member 12 abuts against the cylinder 2b when the stopper is attached, positions the stopper with respect to the cylinder 2b, and prevents rattling of the pressing head including the stopper and the pump stem. Thereby, the standing posture of the pressing head 1 is stably maintained.

  As shown in FIGS. 3A and 3B, the stopper according to the present invention can be attached by a simple operation of closing the insertion gate 4 by abutting the door walls 5a and 5b. As shown in FIG. 3 (c), since it can be easily removed by partial tearing of the wall portion 10 starting from the weakened portion t, the shrink label or tack that has caused the pressing head to tilt. There is no need to attach a seal separately, and efficient production becomes possible.

  If the insertion gate 4 is closed by abutting the door walls 5a and 5b, a T-shaped portion is formed by the vertical ribs 6 and 7 (see FIGS. 3B and 3C), and this T-shaped portion is used as a knob. By utilizing, it becomes easy to perform the tearing work of the wall part 10.

  FIG. 4 is a view showing another embodiment of the stopper according to the present invention. About one of the weakening parts t, the elongate notch part 13 extended along the cylinder 2b and the thin connection part 14 connected to this notch part 13 are provided, and the knob provided in the edge part of the wall part 10 of the notch part 13 is provided. You may make it tear off by putting a finger on the part 11, and also in this case, sticking of a shrink label or a tack seal becomes unnecessary.

  5 (a) to 5 (c) show another embodiment according to the present invention. This example is a stopper having a structure in which the weakened portion t is utilized as a hinge without providing the hinge h shown in FIGS. Such a stopper not only has a simpler structure, but also has the advantage of avoiding inadvertent tearing at the time of molding or attachment of the stopper because the thin portion is only the weakened portion t.

  FIGS. 6 (a) and 6 (b) are views showing a state where still another embodiment of the stopper according to the present invention is attached to a liquid dispensing pump equipped with a pressing head, and FIGS. b) is an external perspective view of the stopper before mounting (at the time of molding) and in a mounting error.

  In this example, the hinge h is omitted so that the weakened portion t has a hinge function as in the case shown in FIG. 5, and a vertically long projection 15 is formed instead of the pressing member 12, and the direction away from the peripheral wall of the pressing head A knob 11 that is warped is provided.

  The stopper having such a configuration is advantageous in reducing the cost because it requires less raw materials to form the stopper, and can be downsized (smaller diameter) and has a smaller radial dimension. It can be easily applied to a pressure head.

  It is possible to provide a container pump having a virgin function that can securely lock the pressing head without impairing the standing posture, that is, a stopper of the liquid dispensing pump.

DESCRIPTION OF SYMBOLS 1 Press head 2 Base 2a Upper end 2b Cylindrical body 3 Stopper 3a End surface 3b End surface 3c Peripheral wall 4 Insertion gate 5a Door wall 5b Door wall 6 Vertical rib 7 Vertical rib 8 Convex part 9 Hole 10 Wall part 10a Back wall 10b Short side wall 10c short side wall 11 knob part 12 holding member 13 notch part 14 thin connection part 15 long projection h hinge t weakening part

Claims (7)

A lower end of the pressure head of the pump that pours out the contents in the container, and a peripheral wall that has an end surface that abuts on the upper end of the base of the pump and surrounds the cylindrical body of the base located between them. A stopper provided,
An insertion gate that passes through the pump stem and is positioned on the inner side of the peripheral wall on the peripheral wall, and is swingably held at each end of the insertion gate. A pair of left and right door walls to be closed, and a weakening portion which is provided along the vertical direction of the peripheral wall and forms a gate for removing the stopper by partially tearing the peripheral wall from the site as a starting point. Stopper for container pump.   The stopper of the container pump according to claim 1, wherein the weakening portion is a hinge that holds the pair of left and right door walls so as to be swingable.   The stopper of the container pump according to claim 1, wherein the weakening portion is at least one notch groove portion provided separately from the hinge and extending toward the end surfaces of the peripheral walls.   The said surrounding wall is a stopper of the container pump in any one of Claims 1-3 which has a knob | pick part hold | gripped in the case of partial tearing of this surrounding wall.   The said knob | pick part is a stopper of the pump for containers of Claim 4 which consists of an upright piece which the lower end part connected integrally with the upper end surface of the surrounding wall, and the upper end part bent back in the direction away from the surrounding wall of a press head.   The container for a container according to any one of claims 1 to 5, wherein a pressing member is provided on the inner surface of the peripheral wall to contact the base cylinder and position the stopper relative to the cylinder while preventing rattling. Pump stopper.   The container pump stopper according to any one of claims 1 to 6, wherein each of the pair of left and right door walls has an L-shaped vertical rib that enables the rocking ends to face each other.

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