JP4930988B2 - Trigger type dispenser - Google Patents

Description

  The present invention relates to a trigger type dispenser.

  A cylinder that sucks and pressurizes the contents in the container by reciprocating the piston, a base cap that has an opening communicating with the cylinder and that is fixedly held at the mouth of the container, and rotates through the opening of the base cap A stem that can stand up and engage with a piston in the cylinder, an ejection nozzle that is connected to the tip of the stem and ejects the contents that have flowed out through the stem, and is supported by the base cap so as to be swingable. There has been proposed a trigger-type dispenser equipped with an operation lever that causes the stem to reciprocate together with the piston by repetition of scissors to suck and pressurize the contents to be ejected from the ejection nozzle (for example, see Patent Document 1).

The operation lever of the dispenser has a rear end portion pivotally attached to an upper end of a support portion that stands up at the rear portion of the base cap, covers the ejection nozzle, and hangs the front end forward of the stem. The nozzle is formed so as to protrude from a vertically long nozzle insertion hole so as not to hinder the operation. Then, by pulling the operation lever backward, the ejection nozzle connected to the operation lever is pushed down, and the contents in the container body are ejected from the ejection nozzle.
JP 2004-016952 A

  Trigger type dispensers are often used in water fields such as bathtubs, kitchens, etc. In that case, there is a risk that water may enter the interior of the opening from which the stem protrudes, and the jet will be ejected. There is a risk of the contents being diluted or soiled. The one with the control lever of the above-mentioned form can cover the upper part mostly with the control lever, but in the conventional product, since the opening of the mounting cap exists at a lower position away from the control lever, the inside is opened from the periphery through the opening As a result, water enters the water.

  The present invention has been made in view of the above points, and in the trigger-type dispenser provided with the operation lever of the above-described form, an excellent trigger type that can prevent water from entering from the opening of the mounting cap into the cylinder as much as possible. A dispenser is proposed. In addition, the present invention proposes a trigger type dispenser that is simple in structure and can be formed by changing only a part of the structure of an existing dispenser, and that the above-mentioned effects can be obtained with minimal cost increase.

  The trigger type dispenser of the present invention is mounted on the container body by fitting a mounting cap on the outer periphery of the mouth and neck while the cylinder is suspended in the container body, and protrudes upward from the top opening of the mounting cap while protruding from the cylinder. A vertically moving member is provided in which an ejection head is fitted to an upper end of a stem that protrudes so as to be able to be pushed down in an urging state. In general, the vertically moving member is configured such that a piston sliding in the cylinder is connected to the lower end portion of the stem and constitutes a known pump mechanism together with the suction valve in the cylinder, and various specific configurations can be adopted.

  In addition, the vertical movement member is pushed down by the operation lever, and the operating member is lifted by the upward biasing force of an elastic material or the like, thereby sucking the container contents into the cylinder and ejecting it from the nozzle protruding in front of the ejection head. It is configured as described. The operation lever is pivotally connected to the support portion standing up from the mounting cap and pivotally connected to the support portion. The operation lever covers the upper portion of the vertical movement member and hangs down to the front of the vertical movement member and moves backward. In this configuration, a nozzle insertion hole that protrudes from the tip of the nozzle is adopted. The shape of the support portion is not particularly limited, but at least the rear end portion of the operation lever can be connected to the rear portion of the vertical movement member so as to be pivotable or pivotable, and can be manufactured if formed integrally with the mounting cap. You can get the above advantages.

  The operation lever basically adopts a form constituted by a strip-like substrate portion that is suspended from the rear of the vertical movement member so as to be able to be pulled forward and side plate portions that are suspended on both sides thereof. Further, the nozzle insertion hole of the operation lever has a vertical width that can be rotated around the pivoting portion or the shaft attachment portion of the operation lever, and the horizontal width is not particularly limited, but for the purposes of the present invention, It is preferable to set a certain narrow width within a range in which relative movement with respect to the operation lever is easy.

  In the present invention, in the trigger-type dispenser equipped with such an operation lever, the upper end of the guide tube standing from the center of the top of the mounting cap is the opening of the mounting cap, and is above the lower end edge of each side plate portion of the operating lever. The tip of the guide tube is installed at the position. By doing so, the infiltration of the liquid into the opening of the device cap is blocked. In this case, as a matter of course, the operation lever is retracted as before.

  Further, as another means, the apparatus is provided with a mounting cap opening provided at a position where water enters from the periphery as before, and is configured to achieve the object by providing a seal tube. The seal cylinder is fitted to the inner circumference of the guide cylinder so that the lower outer circumference can be fluid-tightly slidable, and is fitted to the outer circumference of the vertical movement member so that it can be moved up and down. It is installed in the upper position.

  The seal cylinder can be formed of a synthetic resin or the like, and a tapered sliding piece or a protruding protrusion is provided on the outer periphery of the lower end portion and is fitted on the inner surface of the guide cylinder so as to be capable of liquid-tight sliding. Further, the seal cylinder is configured to descend as the vertical movement member descends and ascend as it rises. Therefore, it is preferable to provide a descending pressing means composed of protrusions, ridges and the like for lowering the vertically moving member and an ascending pressing means composed of protrusions, ridges and the like for raising.

The first means is configured as follows. That is, the mounting cap 10 is fitted to the outer periphery of the mouth-and-neck portion 2 and mounted to the container body B, and the ejection head 40 is projected to the upper end of the stem 41 protruding so as to be able to be pushed down from the top opening a of the mounting cap 10. includes a vertically movable member a ₃ was fitted to the rear end as well as rotatably connected to the support portion 20 standing upright from the mounting cap 10, the ejection head 40 through the upper jet head 40 from the injection head 40 rearward an operation lever a ₄ to the pair of side plate portions 52 from the substrate 51 side edges of the strip was vertically hanging down toward the front of the contents in the container body B by vertically moving the vertically movable member a ₃ by the operation lever a ₄ A trigger-type dispenser configured to eject an object from a nozzle 42 projecting forward of the ejection head 40 , with the lower part having a larger diameter and the upper part having a diameter reduced through a tapered part from the center of the top of the mounting cap 10. It has a small diameter and the top opening is A guide tube 13 having an opening a is erected and fitted into the inner peripheral surface of the large-diameter portion of the guide tube 13 so as to be liquid-tightly slidable, and the upper surface of the guide tube 13 comes into contact with the tapered portion at the highest position. A sliding piece 60 is provided at the lower end, and a seal cylinder A ₅ is provided with the upper end positioned above the lower end edge of both side plate portions 52 of the operating lever A ₄ and fitted to the outer periphery of the ejection nozzle 42 so as to be movable up and down. and stopping projections 44 projecting to raise the sealing tube a ₅ from the outer peripheral lower end portion of the injection head 40.

The second means is configured as follows. That is, in the first means, the section C-shaped to prevent the vertical movement member A ₃ from descending by engaging the lower end with the guide tube 13 on the outer periphery of the seal tube A ₅ protruding from the guide tube 13. A stopper A ₆ having a shape was detachably provided.

In the trigger type dispenser of the present invention, the upper end opening of the guide tube 13 erected from the center of the top of the mounting cap 10 is the opening a, and the lower part is fitted to the inner periphery of the guide tube 13 so as to be liquid-tightly slidable. the tubular sealing a ₅ which was vertically movable fitted in the outer circumference of the vertical movement member a ₃ is provided, since the upper end of the tubular sealing a ₅ was placed in position above each side plate 52 the lower edge Te, the opening of the mounting cap 10 a, or the ingress of liquid from the upper end opening of the tubular sealing a ₅ can pole force prevention, it is suitable for use in the water field. Further, since the sealing tube A ₅ can be formed by a common synthetic resin or the like, it is possible small manufacturing cost up using the conventional products.

In addition, a stopper A ₆ having a C-shaped cross section that prevents the vertical movement member A ₃ from descending by locking the lower end to the guide cylinder 13 on the outer periphery of the seal cylinder A ₅ protruding from the guide cylinder 13 is detachable. In the case where it is provided, it is possible to prevent inadvertent leakage of the liquid when not in use such as distribution and storage, and since it can be easily attached and detached, the handling operation is extremely simple.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show an example of the liquid ejection container of the present invention. In the figure, A shows a trigger type dispenser attached to the container body B. FIG. The trigger-type dispenser A includes a cap member A _1, a cylinder A _2, a vertically movable member A _3, and an operating lever A _4.

The cap member A ₁ is formed by integrally forming a mounting cap 10 and a support portion 20, and the mounting cap 10 is located on the inner side of the upper end edge of the peripheral wall 11 screwed to the outer periphery of the mouth neck portion 2 of the container body B. A top plate 12 whose central portion rises in a tapered shape is extended upward, and a guide tube 13 is erected at the center of the top plate 12 and its upper end is configured as an opening a through which the stem 41 is inserted. Further, the support portion 20 is inclined and raised rearward from the rear portion of the guide tube 13, a rear end portion is curved upward and an end surface thereof is directed upward, and a pair of upright standing on both upper surfaces of the inclined plate 21. It comprises a side plate 22.

In the cylinder A _2, a flange 30 protruding from the upper outer periphery is fitted to the inner peripheral upper end portion of the mounting cap peripheral wall 11 and suspended in the container body B, and the lower surface is placed on the upper surface of the mouth and neck portion 2 through the packing 31. Liquid-tight pressure contact. Although not shown in the figure, a piston connected to the stem is slidably fitted in the cylinder A ₂ and a coil spring for constantly urging the stem upward is built in. A valve is provided. Further, the cylinder A ₂ the lower end connecting the pipe 32 to be suspended in the container body B lower end.

Vertically movable member A ₃ are injection head 40 includes a stem 41 and the not shown piston, the upper end of the stem 41 which is interlocking with the piston and a lower sliding in cylinder A _2, mounting the cylinder A ₂ top opening It protrudes through the opening a of the cap 10 so that it can be pushed in an upward biased state. Further, the ejection head 40 is fitted to the upper end portion of the stem 41. The ejection head 40 has a nozzle 42 protruding forward.

The operating lever A ₄ are suspended rear end portion pivotally mounted on the upper end portion of the support portion 20 is pivotally connected to, the to cover the upper part of the vertical movement member A ₃ forward of the vertical movement member A ₃ In addition, it is provided so as to be able to swing in the front-rear direction around the shaft mounting portion. In addition, a nozzle insertion hole 50 for projecting the tip of the nozzle 42 is provided. More specifically, the operation lever A ₄ includes a substrate portion 51 and a pair of side plate portions 52 on both sides. The substrate portion 51 is brought into contact with the upper end surface of the inclined plate 21 so that the end surface of the rear end portion curved downward is locked so that it cannot be rotated further. It is formed in the shape of a belt plate that reaches the front via the head and curves downward and hangs the lower end to the front of the mounting cap 10. Further, the side plate portions 52 are respectively suspended downward from both sides of the substrate portion 51 to cover the upper both sides of the ejection head 40, and the rear end portions of the side plate portions 52 and the upper end portions of the side plates 22 of the support portion 20 The shaft is attached between. The lower edge of the side plate portions 52 is positioned below the upper end of the vertical movement member A ₃ of the guide tube 13 at the uppermost position. Accordingly, the opening a at the upper end of the guide tube 13 is configured so as to be always positioned between the both side plate portions 52.

Nozzle insertion hole 50 is drilled in a long strip shape in the longitudinal direction across the front from the top of the substrate portion 51, at the time of uppermost vertical movement member A _3, the lower surface of the nozzle 42 of the nozzle insertion hole 50 It is configured to abut on the lower edge. Further, the cylindrical protrusions 43 projecting from both sides of the ejection head 40 are pressed by the plate-shaped protrusions 53 projecting from the both side plate portions 52 of the operation lever A ₄ so that the vertical movement member A ₃ is pushed down. Yes. Plate-like projection 53 pushes while sliding the peripheral surface of the cylindrical projection 43 with the rotation of the operating lever A _4.

The operation of the trigger type dispenser of the present invention will be described. The vertical movement member A ₃ is pushed down against the upward biasing force by pulling the front portion of the operation lever A ₄ backward, and the contents in the container body are driven by the internal pump mechanism. Is ejected from the nozzle 42. When the pressing of the operating lever A ₄ is released, the up and down moving member A ₃ is raised by the upward biasing force, and accordingly the operating lever A ₄ returns to its original state even if it rotates around the shaft attachment portion. content in the container body B is sucked through the pipe 32 into the cylinder a ₂ by when internal pump mechanism.

Opening a guide tube 13 upper end is an opening of the mounting cap 10 at the time of ejection operation of such contents, side plate portions at the uppermost state of retraction before vertical movement member A ₃ of the operating lever A ₄ shown in FIG. 1 52 and the ingress of water as much as possible prevented from externally covered by the substrate portion 51, Further, the same also when the ejection of the contents by pulling the operating lever a _4, water from the outside into the constantly open a It is configured to prevent intrusion.

3 to 5 show another example of the present invention. In this example, in the example of FIG. 1, the opening a of the mounting cap 10 opens below the operation lever A ₄ like a normal dispenser. and, provided separately from the sealing tube a _5. In this example, a stopper A ₆ is also provided.

Guide cylinder 13, the lower are the upper large diameter to a smaller diameter which is reduced in diameter through the tapered portion, also, the tubular sealing A ₅ are, a tapered sliding piece 60 projecting from the lower end and was fluid-tightly slidably fitted in the large diameter portion in the peripheral surface of the guide cylinder 13, can move up and down the ejection nozzle 42 outer circumference is positioned above the side plates 52 the lower edge of the operating lever a ₄ the upper end Is fitted. Further, the stopping projections 44 to increase the sealing tube A ₅ projecting from the outer peripheral lower end portion of the injection head 40 is in contact with the sealing tube A ₅ lower surface.

As shown in FIG. 5, the stopper A ₆ has a C-shaped cross section, has a knob 70 protruding from the outer surface, the lower surface is locked to the upper surface of the guide tube 13, and the upper surface is a cylindrical shape of the ejection nozzle 42. The projection 43 is engaged with the outer surface of the jet nozzle 42 from the front by being locked to the lower surface. The other configuration is the same as that of the example of FIG.

For this example, storage, by when not in use for distribution, etc. is left wearing the stopper A ₆ as shown in FIG. 1, in order to prevent the lowering of the vertical movement member A _3, accidentally like pulling the operating lever A ₄ Even if there is something wrong, it is configured to prevent the ejection of contents. The opening a of the guide tube 13 upper end is an opening of the mounting cap 10 at the time of ejection operation of the contents is a narrow state by the sealing tube A _5, even if still there is infiltration of liquid therefrom sliding The moving piece 60 is configured to reliably prevent further intrusion.

Further, in the uppermost state of retraction before vertical movement member A ₃ of the operating lever A ₄ shown in FIG. 3, entering the upper end portion of the tubular sealing A ₅ is water from which is coated on the substrate portion 51 and both side plate portions 52 When the stopper A ₆ is removed and the operation lever A ₄ is pulled backward from this state, each plate-like protrusion 53 presses each cylindrical protrusion 43 and the vertical movement member A ₃ resists the upward biasing force. At that time, each cylindrical protrusion 43 presses and lowers the upper surface of the seal cylinder A ₅ , and the upper end is lowered to a position substantially the same as the upper end of the guide cylinder 13 as shown in FIG. This time is also composed as to prevent the entry of water from outside into the upper end opening and the opening a constantly sealing tube A _5.

If the pressing of the operating lever A ₄ is released from the state of FIG. 4, the vertical movement member A ₃ is raised by the upward biasing force, and the sealing cylinder A ₅ is pushed up by the locking protrusion 44 to return to the original state. .

It is a longitudinal cross-sectional view of this invention trigger type dispenser. Example 1 It is a longitudinal cross-sectional view at the time of the liquid ejection of this invention trigger type dispenser. Example 1 It is a longitudinal cross-sectional view of this invention trigger type dispenser. (Example 2) It is a longitudinal cross-sectional view at the time of the liquid ejection of this invention trigger type dispenser. (Example 2) It is a perspective view of the stopper in the present invention. (Example 2)

Explanation of symbols

A ... Trigger type dispenser
A ₁ … Cap member
10… Installation cap
11 ... peripheral wall, 12 ... top plate, 13 ... guide tube, a ... opening
20 ... Support part
21 ... Inclined plate, 22 ... Side plate
A ₂ ... Cylinder
30 ... Flange, 31 ... Packing, 32 ... Pipe
A ₃ … Vertical movement member
40 ... ejecting head, 41 ... stem, 42 ... nozzle, 43 ... cylindrical projection, 44 ... locking projection
A ₄ … Control lever
50 ... Nozzle insertion hole, 51 ... Substrate, 52 ... Side plate, 53 ... Plate projection
A ₅ … Seal tube
60 ... Sliding piece
A ₆ … Stopper
70 ... picking B ... container 2 ... mouth neck

Claims (2)

The mounting cap (10) is fitted to the outer periphery of the mouth and neck (2) and mounted on the container body (B), and protrudes from the top opening (a) of the mounting cap (10) so as to be pushed down in an upward biased state. A vertical movement member (A ₃ ) having a jet head (40) fitted to the upper end of the stem (41) is provided, and the rear end portion is rotatably connected to the support portion (20) standing up from the mounting cap (10). In addition, a pair of side plate portions (52) are suspended from both side edges of the belt-like substrate portion (51) that hangs forward from the rear of the ejection head (40) through the upper portion of the ejection head (40). the operating lever includes a (a _4), the nozzle projecting from the contents of the operating lever (a ₄₎ by by vertically moving the vertically movable member (a ₃₎ container body (B) to the front of the injection head (40) (42) a trigger-type dispenser which is composed as ejected from, the top of the mounting cap (10) From the center, a guide tube (13) is formed with a lower diameter having a large diameter and an upper portion having a reduced diameter through a tapered portion, and an upper end opening as the opening (a). A taper-shaped sliding piece (60) whose upper surface is in contact with the taper-shaped portion at the highest position is projected on the lower end portion and fitted to the inner peripheral surface of the large-diameter portion so as to be liquid-tightly slidable. A seal cylinder (A ₅ ) is provided on the outer periphery of the ejection nozzle (42), which is positioned above the lower edge of both side plates (52) of the operating lever (A ₄ ) and is movably fitted up and down , and the ejection head (40) A trigger-type dispenser characterized in that a locking projection (44) is provided in order to raise the seal tube (A ₅ ) from the lower end of the outer periphery . The outer periphery of the seal cylinder (A ₅ ) projecting from the guide cylinder (13) has a C-shaped cross section for locking the lower end to the guide cylinder (13) and preventing the vertical movement member (A ₃ ) from descending. The trigger type dispenser according to claim 1, wherein the stopper (A ₆ ) is detachably provided.

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