JP2564022Y2 - Liquid dispenser - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical pump type liquid dispenser having a pressing head with a nozzle.

[0002]

[Prior art]

This type of vertical pump type liquid dispenser pushes down an operating member formed of a press-down head with a nozzle, a stem, and a cylindrical piston against the elasticity of a compression coil spring. In this way, the liquid in the cylinder is discharged from the nozzle and the depression of the liquid is released, so that the liquid in the container is sucked into the cylinder.

[0003] In this type of dispenser, if the viscosity of the discharged liquid is high, the residual liquid attached to the inner surface of the cylinder wall of the nozzle at the time of dispensing is dried and solidified, and the nozzle hole may be clogged. Thereafter, the spout of the nozzle is closed with a separate plug, or the rear end of the long plate-shaped lid is pivotally attached to the rear end of the nozzle as in the invention described in Japanese Utility Model Application Laid-Open No. 63-128859. Then, the spout of the nozzle hole is closed at the front of the lid, and when the push-down head is depressed, the lid is formed upright around the rear end to open the spout.

However, in the above-mentioned conventional example, the former is not only troublesome because the plug is attached and detached each time it is poured out, and the plug may be lost. In the latter case, the spout can be easily opened and closed. However, the structure became complicated and the cost increased.

[0005] The present invention is provided with a very simple structure and capable of opening and closing the spout without any special operation.

[0006]

SUMMARY OF THE INVENTION In a vertical pump type liquid dispenser in which a press-down head with a nozzle is mounted on the upper end of a stem, the press-down head with a nozzle 4 is provided on the top outer surface of the stem 7 with a top wall. Inner peripheral wall 8 suspended from the lower part of the central part 8
And a fitting cylindrical portion 20 is fitted to the front part of the gap between the outer peripheral wall 9 and the inner peripheral wall 8 which are suspended from the peripheral edge of the top wall 6.
A head body 5 having an opening at the outer peripheral wall 9 surrounded by the front end of the fitting tube portion, and a nozzle 4 having a rear outer surface fitted and fixed to the inner surface of the fitting tube portion 20; The nozzle includes a fixed cylinder 14 having an inward flange-like wall 21 attached to the front end of the cylindrical portion fitted on the inner surface of the fitting cylindrical portion 20, and an outer surface of the fixed cylindrical portion 13 on the inner surface of the fixed cylindrical portion 14. And the rod-shaped plug 2 projects forward from the center of the rear end wall 11 that closes the rear surface of the fixed cylindrical portion, and the front portion of the rod-shaped plug is loosely inserted into the flange hole of the inward flanged wall. The rear outer surface of the cylindrical main body having a larger inside diameter than the rod-shaped plug 2 is fitted to the plug member 22 protruded forward and the inner surface of the fixed cylindrical portion 13, and attached to an intermediate portion of the cylindrical main body. The outward flange-shaped wall is sandwiched between the rear surface of the inward flange-shaped wall 21 and the front end surface of the fixed cylindrical portion 13; The front portion of Jo main body and the elastic tapered portion of the front end small diameter, rod-shaped stopper 2 to the front end portion 3 of the elastic tapered portion
And an elastic cylinder 1 fitted water-tightly to the outer surface of the front end of
A first small hole 10 is formed in an inner peripheral wall 8 portion surrounded by a rear end of the fitting tubular portion 20, and a second small hole 12 is formed in a rear end wall 11 portion excluding a protruding portion of the rod-shaped plug 2. These are the first and second
The cylindrical main body of the elastic cylinder 1 and the stem 7 were communicated via the small holes 10 and 12.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 (first embodiment) In this embodiment, first, a known structure will be briefly described. A mounting cylinder 18 is screwed to a mouth and neck 17 of a container body 16. The upper end of the cylinder is formed with an inner and outer double cylinder through an inward flange-like wall, the upper part of the cylinder 15 is fitted between these cylinders, and the cylindrical piston is inserted into the lower part of the stem 7 from within the cylinder. 19 and an operating member having a pressing head with a nozzle 4 on the upper portion of the stem 7 is urged upward by a spring to stand upright.

In the present invention, the press-down head with the nozzle 4 is formed by the head body 5 and the nozzle 4, and the head body 5
Is formed by fitting a lower inner surface of an inner peripheral wall 8 suspended from a central portion of a lower surface of the top wall 6 to an upper outer surface of the stem 7, and forming an outer peripheral wall 9 having a peripheral edge of the top wall 6 suspended from the inner peripheral wall 8. The fitting cylindrical portion 20 is provided laterally at the front portion of the gap therebetween, and the outer peripheral wall 9 portion surrounded by the front end of the fitting cylindrical portion is opened, and the inner peripheral wall 8 surrounded by the rear end of the fitting cylindrical portion 20.
A first small hole 10 is formed in the portion.

The nozzle 4 comprises a fixed cylinder 14, a plug member 22
The fixed cylinder 14 is formed of the elastic cylinder 1 and has an inward flange-like wall 21 at the front end of the cylindrical part fitted and fixed to the inner surface of the fitting cylindrical part 20.

The plug member 22 has the outer surface of the fixed cylindrical portion 13 fitted to the inner surface of the fixed cylindrical portion 14 and the rod-shaped plug 2 is moved forward from the center of the rear end wall 11 which closes the lower surface of the fixed cylindrical portion. The front end of the rod-shaped plug is loosely inserted into the flange hole of the inward flange-shaped wall 21 to protrude forward, and the second small hole 12 is formed in the rear end wall 11 except for the protruding portion of the rod-shaped plug 2. Drilling,
Further, the front portion of the fixed cylindrical portion 13 is notched to form a small outer diameter portion.

The elastic cylinder 1 is provided on the inner surface of the fixed cylinder 13.
The rear outer surface of the cylindrical main body having a larger inner diameter than the rod-shaped stopper 2 is fitted, and the outward flange-like wall provided at the intermediate portion of the cylindrical main body is fixed to the rear surface of the aforementioned inward flange-like wall 21. While being pinched between the front end surface of the cylindrical portion 13 and the inner surface of the short peripheral wall projecting rearward from the outer peripheral edge of the outward flange-like wall, the outer surface of the small outer diameter portion of the fixed cylindrical portion 13 is fitted. The front end of the main body is an elastic tapered portion having a small diameter at the front end, and the front end 3 of the elastic tapered portion is fitted to the outer surface of the front end of the rod-shaped plug 2 in a watertight manner. Further, the cylindrical main body communicates with the stem 7 through the first and second small holes 10 and 12, and when the operating member is pressed down through a pressing head, the pressurized liquid is discharged. Then, the fluid flows into the cylindrical main body through the first and second small holes 10 and 12, and the distal end portion 3 of the elastic tapered portion expands and deforms, so that the pressurized liquid is discharged, Is released, the distal end portion 3 of the elastic tapered portion is elastically restored, and is fitted to the outer surface of the front end portion of the rod-shaped plug 2 in a watertight manner.

FIG. 2 (Second Embodiment) This embodiment shows a modification of the elastic tapered portion of the elastic cylinder 1, in which the elastic tapered portion is formed in an inward flange shape and the front end 3 is a rod-shaped plug. 2 is fitted to the outer surface of the front end portion in a watertight manner.

[0013]

According to the present invention, the rod-shaped plug 2 projects forward from the center of the rear end wall 11 of the plug member 22.
Also, the front end of the cylindrical main body of the elastic cylinder 1 is an elastic tapered portion having a small diameter at the front end, and the front end 3 of the elastic tapered portion is fitted to the outer surface of the front end of the rod-shaped plug 2 in a watertight manner. The distal end portion 3 of the cylindrical main body can be reliably closed, so that the liquid adhering to the inner surface of the cylindrical main body is dried and solidified, the nozzle hole is not clogged, and the nozzle is pushed down. When the head is pressed down, the pressurized liquid flows into the cylindrical main body, and the front end 3 of the elastic tapered portion expands and deforms, so that the liquid can be poured out without any trouble. Further, a fitting cylinder 20 is provided laterally at the front of the gap between the inner peripheral wall 8 and the outer peripheral wall 9 of the head main body 5 to open the outer peripheral wall 9 surrounded by the front end of the fitting cylinder. Since the rod-shaped plug 2 protrudes forward from the center of the rear end wall 11 of the plug member 22 fitted into the mating tube portion 20 via the fixed tube 14 and the elastic tube 1, for example, the inner wall of the mating tube portion 20 The structure of the head main body 5 is simplified as compared with the case where the rod-shaped plug 2 is protruded, and the structure of the mold for molding the head main body is simplified, so that the cost can be reduced and the cost can be reduced. The outward flange-like wall of the elastic cylinder 1 is sandwiched between the front end face of the fixing cylinder 13 of the plug member 22 and the rear face of the inward flange-like wall 21 of the fixed cylinder 14, and the cylinder of the fixed cylinder 14 is fitted. The elastic tube 1, the plug member 22,
The nozzle 4 formed by the fixed cylinder 14 can securely fit the head main body 5 into the fitting cylinder 21.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment.

FIG. 2 is a longitudinal sectional view of a main part showing a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Elastic cylinder 4 ... Nozzle 14 ... Fixed cylinder 22 ... Plug member

Claims (1)

(57) [Scope of request for utility model registration] 1. A vertical pump type liquid dispenser having a nozzle with a press-down head mounted on an upper end of a stem, wherein the press-down head with nozzles 4 is provided on an upper outer surface of a stem 7 and at a center of a lower surface of a top wall 6. The lower inner surface of the inner peripheral wall 8 suspended from the portion is fitted, and the fitting cylindrical portion 20 is horizontally provided at the front of the gap between the outer peripheral wall 9 suspended from the peripheral edge of the top wall 6 and the inner peripheral wall 8. And the outer peripheral wall 9 surrounded by the front end of the fitting tubular portion.
A head body 5 having an open portion, and a nozzle 4 having a rear outer surface fitted and fixed to the inner surface of the fitting tube portion 20, wherein the nozzle is fitted on the inner surface of the fitting tube portion 20. A fixed cylinder 14 having an inward flange-like wall 21 attached to the front end of the fixed cylinder; a rear end for fitting the outer surface of the fixed cylinder 13 to the inner surface of the fixed cylinder 14 and closing the rear surface of the fixed cylinder. A plug member 22 having a rod-shaped plug 2 protruding forward from the center of the wall 11, and a rod-shaped plug front portion protruding forward by inserting a flange hole of the inward flange-shaped wall into the flange portion; The inner surface is fitted with a rear outer surface of a cylindrical main body having a larger inside diameter than the rod-shaped plug 2, and an outward flange-like wall provided at an intermediate portion of the cylindrical main body is connected to the rear surface of the inward flange-like wall 21. An elastic tape having a small diameter at the front end is clamped between the fixed cylindrical portion 13 and the front end face, and the front end of the cylindrical main body is fixed at the front end. The front end 3 of the elastic tapered portion is formed by the elastic tube 1 fitted to the outer surface of the front end of the rod-shaped plug 2 in a watertight manner, and the inner peripheral wall 8 surrounded by the rear end of the fitting tube 20 A first small hole 10 is formed in the portion, and a second small hole 12 is formed in the rear end wall 11 excluding the protruding portion of the rod-shaped plug 2, respectively.
A liquid dispenser characterized in that the cylindrical main body of the elastic cylinder 1 and the stem 7 are communicated via the small holes 10 and 12.