JPH0547100Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial Application Field" The present invention relates to a pump-type liquid discharge container for discharging or ejecting the liquid inside the container as it is, or in the form of mist or foam.

``Prior art'' A lower part of an operating member with a nozzle is fitted into a cylinder attached to a container, and by vertical movement of the operating member relative to the cylinder, liquid inside the container is drawn into the cylinder via a suction pipe hanging from the lower end of the cylinder. BACKGROUND OF THE INVENTION A pump-type liquid discharge container is known which is provided to draw liquid into the cylinder and discharge the liquid from a nozzle through a stem of an actuating member.

"Problems to be Solved by the Invention" Conventional pump-type liquid dispensing containers have the disadvantage that when the dispensing liquid has a relatively high viscosity, it is difficult to dispense it.

This study found that the main cause of this was that the diameter of the liquid suction pipe was small compared to the viscosity of the liquid. In some cases, a small-diameter liquid suction pipe can be installed vertically from the lower end of the cylinder, thereby eliminating the above-mentioned drawbacks of the conventional method.
These are provided to ensure the installation and replacement of liquid suction pipes, as well as to prevent the pipes from being pulled out.

"Means for solving the problem" The lower part of the operating member 8 with a nozzle is fitted into the cylinder 2 attached to the container body 1, and the liquid in the container is caused to drip from the lower end of the cylinder by vertical movement of the operating member with respect to the cylinder. In the manual liquid dispensing container, which is provided to draw liquid into the cylinder through a suction pipe 18 and discharge the liquid in the cylinder from the nozzle 14 through the stem 13 of the operating member, the suction pipe is fitted at the lower end of the cylinder. Projections 2b and 2c for fitting the suction pipe 18 were provided around the inner and outer surfaces of the joint tube 2a, and tapered surfaces 2d and 2e for guiding the suction pipe were formed at the lower ends of both the inner and outer surfaces.

"Function" When the liquid inside the container has high viscosity, the upper end of the large diameter suction pipe 18 is fitted onto the outer surface of the pipe fitting tube 2a hanging down from the lower end of the cylinder 2, and the protrusion provided around the outer surface of the pipe fitting tube 2a is fitted. By biting the strip 2c into the inner surface of the pipe, the suction pipe 18 is prevented from being pulled out, and in the case of low viscosity, the upper end of the small diameter suction pipe is fitted into the inner surface of the pipe fitting cylinder, and the suction pipe 18 is prevented from being pulled out. By biting the protrusion 2b provided around the inner surface of the fitting cylinder into the outer surface of the pipe, the suction pipe is prevented from being pulled out. When fitting the suction pipe, since there are tapered surfaces 2d and 2e at the lower end of the pipe fitting tube 2a, the suction pipe can be easily fitted to the inner or outer surface of the pipe fitting tube.

``Example'' 1 is a container body, into which a cylinder 2 is vertically installed. The cylinder has an upper outward flange 3 placed on the top surface of the mouth of the container via a packing 4, and an inward flange 6 at the upper end of a mounting cylinder 5 screwed onto the outer surface of the mouth and neck. It is held between the container body and the top surface of the mouth. The cylinder has a suction valve 7 at the bottom.

The lower part of the nozzle-equipped operating member 8 is fitted into the cylinder 2 so as to be vertically movable. In the illustrated example, the operating member has an outer surface of a stem fitting tube 11 hanging down from a push-down head 10 screwed into a screw tube 9 fixed to the upper end of the cylinder. The actuating member is held depressed to its lower limit so that the actuating member does not protrude too high above the cylinder and make the package bulky. In use, when the screws are unscrewed, the spring 12 installed inside the cylinder pushes up the actuating member 8, and by moving it up and down against the bias of the spring, the liquid inside the container is sucked into the cylinder. The liquid inside the cylinder is discharged from the nozzle 14 via the stem 13.

Reference numeral 15 denotes a cylindrical piston, and when the cylindrical piston moves up and down with respect to the lower cylindrical member 16, an inflow hole 17 into the operating member is opened and closed, and it functions as a discharge valve.

A suction pipe fitting cylinder 2a hangs down from the lower end of the cylinder 2, and protrusions 2b and 2c for fitting the suction pipe are provided around the inner and outer surfaces of the fitting cylinder, respectively.

The upper end of the suction pipe 18 is fitted onto the outer surface of the suction pipe fitting cylinder 2a. The suction pipe is made of a soft synthetic resin material, and the protrusion 2c on the outer surface of the fitting tube bites into the inner surface of the suction pipe 18, and this biting prevents suction from the fitting tube 2a. Prevents the pipe from being pulled out. The suction pipe 18 in the illustrated example is for when the liquid inside the container has a high viscosity, and when the liquid inside the container has a low viscosity, the upper end of the suction pipe having an outer diameter smaller than that of the suction pipe shown in the figure is used as described above. What is necessary is to fit it into the fitting tube 2a, and to bite the protrusions 2b, 2b on the inner surface of the fitting tube into the outer surface of the pipe. In addition, at the lower ends of both the inner and outer surfaces of the suction pipe fitting cylinder 2a, there are tapered surfaces 2 for guiding the suction pipe.
d and 2e are attached. The inwardly tapered surface 2d is a tapered surface having a large diameter at its lower end, and the outwardly tapered surface 2e is a tapered surface having a small diameter at its lower end. The inner diameter of the lower end of the inwardly tapered surface may be larger than the outer diameter of the suction pipe 18, which will be described later, and the outer diameter of the lower end of the outer tapered surface may be smaller than the inner diameter of the suction pipe.

"Effect of the invention" As mentioned above, this invention has protrusions 2b and 2c for fitting suction pipes around the inner and outer surfaces of the suction pipe fitting tube at the lower end of the cylinder, respectively, so that it can be used to discharge high-viscosity liquids. In this case, a large diameter suction pipe is fitted to the outer surface of the fitting cylinder, and when used as a low viscosity liquid discharge container, the upper end of a small diameter suction pipe is fitted to the inner surface of the fitting cylinder. Therefore, it is convenient to use the dispensing device, including the cylinder and operating members, excluding the container body, both for high-viscosity liquids and for low-viscosity liquids. Since tapered surfaces 2d and 2e for guiding the suction pipe are formed at the lower ends of both the inner and outer surfaces of the lifting pipe fitting cylinder, suction can be performed simply by mechanically pressing the ends against the suction pipe fitting cylinder. The raised pipe can be fitted easily and quickly.

[Brief explanation of the drawing]

The drawing is a half-sectional view of the container of the present invention. 2... Cylinder, 2a... Fitting tube.

Claims (1)

[Scope of utility model registration request] The lower part of the operating member 8 with a nozzle is fitted into the cylinder 2 attached to the container body 1, and by vertical movement of the operating member with respect to the cylinder, the liquid inside the container is drawn into the cylinder via the suction pipe 18 hanging from the lower end of the cylinder. In a manual liquid dispensing container which is provided to suck up the liquid in the cylinder and discharge the liquid from the nozzle 14 through the stem 13 of the operating member, the suction pipe is placed on both the inner and outer surfaces of the suction pipe fitting tube 2a at the lower end of the cylinder. A pump-type liquid discharge container characterized in that protrusions 2b and 2c for fitting a pipe 18 are provided around the circumference, and tapered surfaces 2d and 2e for guiding the suction pipe are formed at the lower ends of both the inner and outer surfaces of the container.