JPH0615854Y2 - Vertical pump type liquid ejection container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a vertical pump type liquid ejection container.

"Prior Art" As a liquid ejection container as described above, for example, those shown in FIGS. 3 and 4 are known (see Japanese Utility Model Laid-Open No. 60-168567, etc. by the present applicant).

This is a cylinder 5 with a ball valve type suction valve 4 vertically installed in the container body 1 by the support of a first ring cap 3 screwed into the neck portion 2 of the container body, and into the cylinder 5. Stem 6
A cylindrical piston 7 attached to the lower end is housed in an upwardly biased state so as to be vertically movable, and a push-down head 9 with a nozzle 8 is attached to the upper end of a stem 6 standing above the cylinder 5, which is a ball valve type. And an operating member (11) with a discharge valve (10). In the illustrated example, the outward flange-like portion 12 provided around the outer surface of the upper part of the cylinder 5 is located on the lower surface of the top wall of the first ring cap 3 and the upper neck surface of the container body 1 on the upper neck surface side. The packing 13 is arranged and sandwiched. Further, the discharge valve 10 is attached inside the upper portion of the stem 6.

The rod-shaped interior member 14 mounted in the cylinder 5
The upper portion of the rod portion 15 penetrates the inside of the cylindrical hole 16 of the cylindrical piston 7, and the lower surface of the large outer diameter portion 15a attached to the upper end of the rod portion 15 is water-tightly pressed against the opening edge of the upper end of the cylindrical hole 16. . The rod-shaped interior member 14 is formed by erecting the rod portion 15 from the upper end of a short tubular portion 19 with a through hole 18 having an outwardly facing flange portion 17 attached to the lower end through a shoulder portion 20. This is to reduce the volume and increase the pump efficiency.

Therefore, when the push-down head 9 is pushed down, the volume of the pump chamber A between the suction valve 4 and the discharge valve 10 is reduced,
The pressurized liquid in the pump chamber A pushes open the discharge valve 10 and is ejected to the outside through the nozzle 8.

When the push-down is released, the volume of the pump chamber A is expanded, so that the negative pressure in the pump chamber A causes the discharge valve 10 to close and the suction valve 4 to open, so that the liquid in the container body 1 is transferred to the pump chamber A. It is inhaled inside and prepares for another head depression. At this time, as shown in FIG. 3, the large outer diameter portion 15 of the rod-shaped interior member 14 is used.
a Discharge valve in which the lower surface is watertightly pressed against the upper opening edge of the cylindrical piston cylindrical hole 16 and the liquid in the pump chamber A and the liquid in the container body 1 (by the suction valve opening) are in the open state when the container falls. It can be prevented from leaking to the outside through 10.

In addition, as shown in FIG.
A stem connecting tube portion 21 that hangs from the lower surface of the push-down head 9.
Is screwed onto the inner peripheral surface of the second ring cap 22 fixed to the upper end opening of the cylinder 5, whereby the pressing head 9 can be prevented from being inadvertently pressed and the liquid ejected. The container can be prevented from becoming bulky during transportation. Further, at this time, the lower end opening edge of the cylindrical piston cylindrical hole 16 is water-tightly pressed against the upper surface of the shoulder portion 20 of the rod-shaped interior member 14, so that the liquid inside the container body 1 is in a valve-opened state when the container falls. It can be prevented from leaking to the outside through the.

In the figure, 23 is a through hole for preventing negative pressure in the container, 24 is a coil spring for urging the stem upward, and 25 is a suction pipe. In addition, each member is packing 13, coil spring 2
4, except for the ball valve elements of the suction valve 4 and the discharge valve 10, all are molded and manufactured of synthetic resin material.

"Problems to be solved by the invention" However, in the conventional liquid ejection container as described above, the nozzle of the push-down head 9 corresponds to the label or the like attached to the container body 1 when the container is displayed. The first ring cap 3 is formed separately from the cylinder 5, the second ring cap 22 and the like so that the direction of 8 can be set in a predetermined direction. The first ring cap 3 was screwed to the neck portion 2 of the container body while the cylinder 5 was set in the container body 1 in the state of being screwed.

Therefore, when the push-down head is unscrewed, in some cases, the cylinder to which the second ring cap is fixed rotates together with the first ring cap, and the first ring cap is inadvertently removed from the neck of the container body. In addition to the problem, the screwing of the first ring cap complicates the assembling work, resulting in a decrease in productivity and an increase in cost.

Therefore, the present invention provides a vertical pump type liquid ejection container which can prevent the careless removal of the first ring cap when the push-down head is unscrewed by a simple structure change and can simplify the assembling work. The purpose is to provide.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the vertical pump type liquid ejection container according to the present invention, by supporting the first ring cap 3 fitted to the neck 2 of the container body, A cylinder 5 with a suction valve 4 vertically installed in the container body 1 and a cylindrical piston 7 attached to the lower end of the stem 6 are housed in the cylinder in an upwardly biased state and vertically movable. An upper end of the stem standing upward has an operation member 11 with a discharge valve 10 provided with a pressing head 9 with a nozzle 8 and an inner peripheral surface of a second ring cap 22 fixed to the upper end opening of the cylinder. The stem connecting tube portion 21 that hangs from the lower surface of the above-mentioned pushing head.
In a vertical pump type liquid ejection container in which the actuating member is pushed down against the bias and screwed together, the first ring cap 3 is fixed to the cylinder 5 in a non-rotatable manner. The lower outer peripheral part of the neck and the lower inner part of the first ring cap 3 are engaged with the engaging protrusions 27 and the engaging grooves 29 provided in the circumferential direction so as to be vertically movable and non-rotatably engaged, and the outer surface of the mouth / neck 2 It is characterized in that the lower surface of the first engaging projection 26 provided around the upper portion is passed over and engaged with the second engaging projection 28 provided circumferentially above the inner surface of the first ring cap peripheral wall 3a.

[Operation] The pressing head 9 is pressed against the second ring cap 22 fixed in advance to the cylinder 5 against the urging force, and the operating member 11 is pressed against the cylinder 5 and screwed together. While inserting the nozzle 8 of the push-down head 9 into the container neck 2 in correspondence with the label or the like attached to the container 1,
The peripheral wall 3a of the first ring cap 3 which is fixed to the cylinder 5 in a non-rotatable manner in advance is fitted onto the outer surface of the container neck 2 from above. At this time, the engaging protrusions 27 at the lower outer peripheral portion of the mouth / neck portion 2 are fitted into the respective engaging grooves 29 at the lower inner peripheral portion of the peripheral wall 3a so as not to be rotatable and vertically movable. 2 First on the outer surface
The second engaging projection 28 on the inner surface of the peripheral wall 3a is passed over and engaged with the lower surface of the engaging projection 26 so as not to come out upward.

Therefore, the cylinder 5 and the like can be assembled to the container body 1 with one hand and one touch.

When screwing down the push-down head 9, the second ring cap 22
Since the first ring cap 3 is non-rotatably fixed to the container body neck 2 with respect to the cylinder 5 to which is fixed,
The cylinder can be smoothly unscrewed without rotating the cylinder carelessly as in the conventional example.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, 5 is a cylinder equipped with a suction valve 4 mounted on the container body 1, 11 is a cylindrical piston 7 at the lower end of a stem 6 that moves up and down in the cylinder 5, and a pressing head 9 with a nozzle 8 at the upper end. Is an operating member with a discharge valve 10 attached thereto, and 14 is a rod-shaped interior member mounted in the cylinder 5 and is the same as in FIGS. 3 and 4.

In addition, in this embodiment, the first ring cap 3 is non-rotatably linked to the cylinder 5 and the first ring cap 3
The peripheral wall 3a of the ring cap 3 is fixed to the outer surface of the mouth / neck portion 2 of the container body by driving from above the mouth / neck portion 2.

In the illustrated example, the first engaging protrusion is provided on the upper outer surface of the container neck 2
26 are provided circumferentially, and a plurality of engaging protrusions 27 are vertically provided on the outer surface of the lower half portion of the mouth / neck portion 2 at predetermined intervals in the circumferential direction.
On the other hand, the second engagement protrusion 28 for preventing cap capping, which is engaged with the inner surface of the intermediate portion of the first ring cap peripheral wall 3a by the forced override (placing) on the lower surface of the first engagement protrusion 26, is provided. Along with the inner wall of the peripheral wall 3a, a plurality of engagement grooves 29 for fitting the engagement protrusions 27 for preventing cap rotation are vertically provided at predetermined intervals in the circumferential direction. There is. Further, a second ring for preventing cap rotation is provided on the inner peripheral surface of the first ring cap top wall 3b.
A plurality of engaging grooves 30 are vertically provided at predetermined intervals in the circumferential direction,
In these engagement grooves 30, a plurality of engagement protrusions 31 which are vertically provided on the outer surface of the upper portion of the cylinder 5 at predetermined intervals in the circumferential direction are fitted.

Since other configurations are similar to those in FIGS. 3 and 4, the same members as those in FIGS. 3 and 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

2A and 2B show another embodiment of the present invention. FIG. 2A shows a ring-shaped plate portion 32a instead of the packing 13.
In the example using the synthetic resin molding plug 32, in which the short tubular portions 32b and 32c are vertically provided from the inner peripheral edge and the lower surface of the intermediate portion, respectively,
FIG. B shows an example in which, instead of the packing 13, a short cylindrical portion 33 for sealing is integrally hung from the lower surface of the intermediate portion of the outward flange 12 of the cylinder 5.

"Effect of Invention" As described above, the container of the present invention is the first ring cap 3
Is fixed to the cylinder 5 in a non-rotatable manner, and can be moved up and down by the engagement of the engagement protrusion 27 and the engagement groove 29, which are provided with a plurality of lower outer peripheral portions of the mouth and neck and a lower inner surface of the first ring cap 3 in the circumferential direction. Further, the lower surface of the first engaging projection 26, which is engaged non-rotatably and is provided around the outer surface of the mouth / neck portion 2, is provided with the peripheral wall of the first ring cap.
Since the second engaging projection 28 provided around the upper part of the inner surface of 3a is passed over and engaged, the cylinder and the like can be assembled to the container body with one hand and one touch while maintaining the nozzle positioning mechanism. The improvement makes it possible to reduce the cost and prevent the careless removal of the first ring cap when the push-down head is unscrewed.

[Brief description of drawings]

FIG. 1 is a half sectional view of an essential part showing an embodiment of the present invention, FIG. 2A is a sectional view of an essential part showing another embodiment of the present invention, and FIG. 2B is a further embodiment of the present invention. FIG. 3 and FIG. 4 are half-sectional views of a main part of a conventional example showing different working states. 5 …… Cylinder with suction valve 11 …… Operating member with discharge valve

Claims (1)

[Scope of utility model registration request] 1. A cylinder 5 with a suction valve 4 suspended in a container body 1 by supporting a first ring cap 3 fitted in a neck 2 of the container body, and a cylinder 5 with a suction valve 4 at the lower end of a stem 6. A discharge valve in which the attached cylindrical piston 7 is accommodated in an upwardly biased state and is movable up and down, and a push-down head 9 with a nozzle 8 is attached to the upper end of the stem standing above the cylinder.
A stem connecting cylinder portion 21 that hangs from the lower surface of the pressing head is provided on the inner peripheral surface of a second ring cap 22 that has an operating member 11 with 10 and is fixed to the upper end opening portion of the cylinder.
In a vertical pump type liquid ejection container in which the actuating member is pressed down against the bias and screwed together, the first ring cap 3 is fixed to the cylinder 5 in a non-rotatable manner, The lower part and the lower part of the inner surface of the first ring cap 3 are engaged with the engaging protrusions 27 and the engaging grooves 29 provided in the circumferential direction so as to be vertically movable and non-rotatably engaged, and to the upper part of the outer surface of the mouth / neck part 2. A vertical pump type liquid jet characterized in that the lower surface of the first engaging projection 26 provided around the second engaging projection 28 provided on the upper part of the inner surface of the first ring cap peripheral wall 3a is passed over and engaged. container.