JPS6131716Y2 - - Google Patents

Description

[Detailed explanation of the idea] This case concerns liquid cosmetic dispensing containers.

As this type of container, a manual pump is detachably attached to the mouth and neck of a tube container made of synthetic resin and has a body that can be compressed elastically, and the liquid cosmetics filled in the tube container is pumped by operating the pump. There are products that can be dispensed, but in this case, the pump operation creates negative pressure inside the tube container and dispenses it, so as liquid cosmetics are poured out, the body of the tube gradually becomes flattened, changing the appearance of the container. It had a detriment.

The present invention eliminates the above-mentioned drawbacks, and will be explained below with reference to the drawings. 1 is a tube container made of synthetic resin having a body 2 that can be elastically compressed, and has a thread extending from the upper end of the body through a shoulder 3 on the outer surface. The mouth and neck 4 are erected upward. The lower end surface of the trunk is open, and an inner plate 5 is fitted into the lower end of the trunk. The inner plate is capable of rising while the outer circumferential surface of the inner plate is in watertight contact with the inner wall surface of the body by creating a negative pressure inside the body, and is provided with a short cylindrical outer circumferential wall 6 as shown in the figure. If only the outer edges of the upper and lower ends of the outer circumferential wall are in contact with each other, the frictional resistance accompanying the rise can be reduced. The illustrated inner tray has a recess 7 opening at the upper surface of the central portion, and when the inner tray rises above the tube container, the liquid cosmetics in the shoulder of the tube container passes through the recess. It is designed to be sucked in from the pump's suction valve.

The pump 8, which is detachably attached to the mouth and neck of the tube container, has an outward flange 10 protruding from the upper outer surface of the cylinder 9, and a screw cylinder 1 in which the mouth and neck of the tube container are screwed together from the lower surface of the outward flange.
1 is provided vertically, and a fitting cylinder 12 is provided vertically from the outer periphery of the outward flange. A suction valve 13 is formed on the bottom wall of the cylinder, and a lower part of a discharge pipe 15 having a cylindrical piston part 14 on the outer periphery of the lower end is fitted into the cylinder, and a discharge head 17 with a nozzle 16 is fitted into the upper end of the discharge pipe. It has been combined. A discharge valve 18 is also formed within the upper end of the discharge pipe. Reference numeral 19 denotes a retaining ring, which is fitted onto the upper end of the cylinder, with an engaging protrusion provided on the inner surface of the ring circumferential wall and the outer surface of the upper end of the cylinder, and the cylindrical piston portion engages with an inward flange attached to the upper end of the ring. This prevents the discharge pipe from being pulled out. Inside the cylinder is a coil spring 2.
0 is installed inside to urge the discharge pipe upward.

The upper end of the outer cylinder 21 is detachably fitted into the fitting cylinder 12 of the pump. The outer cylinder has approximately the same length as the tube container, and its lower end is open to form an air intake port. The inner diameter of the outer cylinder is approximately the same as the outer diameter of the tube container body.
The body can be easily inserted into the outer diameter and can be easily removed. An outward flange 22 is preferably provided at the lower end of the outer cylinder to facilitate erection of the container.

In the above configuration, when the tube container is filled with liquid cosmetics and the discharge head 17 is moved up and down to operate the pump, the liquid cosmetics are discharged and the inside of the tube container becomes negative pressure. Since the tube container has moderate rigidity, by applying negative pressure, a certain part of the body will be shortened in diameter and deformed into a flat shape. The inner plate 5 cannot be deformed because it is prevented from increasing the diameter of the part orthogonal to the shortened part by the outer cylinder, and eventually the negative pressure is eliminated by pulling up the inner plate 5. Liquid cosmetics are dispensed. When the tube container is empty, it is sufficient to remove the tube container after removing the outer tube, replace it with a new tube container, and fit the outer tube again.

The present invention has the above-mentioned structure, in which the lower end of the tube container body is opened, an inner plate that rises in watertight contact with the inner wall surface of the body is fitted into the lower end of the body, and the body is elastically compressible. Since the outer cylinder 21 has a circular cross-section with appropriate rigidity and has an inner diameter that is approximately the same as the outer diameter of the body of the tube container, the outer tube 21 has an inner diameter that is approximately the same as the outer diameter of the body of the tube container. Because the outer cylinder prevents the partial diameter from becoming longer, the inner plate cannot be deformed, and the inner plate is pulled up.Also, since the outer cylinder is fitted to the tube container, the container cannot be moved as in the conventional case. It does not deform and damage the appearance, and after the liquid cosmetics are used up, the pump and outer barrel can be reused and only the tube container can be replaced in a cartridge style. Since it can be manufactured at a lower cost than containers, costs can be lowered compared to conventional methods.

[Brief explanation of the drawing]

The drawing is a longitudinal sectional view of the container according to the invention. 1...Tube container, 5...Inner plate, 8...Pump, 21...Outer cylinder.

Claims (1)

[Scope of utility model registration request] A manual pump 8 is attached to the mouth and neck of a synthetic resin tube container 1 which is elastically compressible and has a circular cross-sectional body 2.
In a liquid cosmetic dispensing container which is provided so that the liquid cosmetics filled in the tube container can be dispensed by attaching and detaching the tube container and operating the pump, the body of the tube container has a lower end surface opening having an appropriate rigidity. A cylindrical inner plate 5 is fitted into the lower end of the body so as to be able to rise while the outer peripheral surface of the inner plate is in watertight contact with the inner wall surface of the body, and an outward flange protrudes from the manual pump. A fitting tube 12 is vertically disposed from the tube container body 10, and the tube container body is slidably inserted into an outer tube 21 having an inner diameter substantially the same as the outer diameter of the tube container body and having an outside air intake port at the lower end. A liquid cosmetic dispensing container, characterized in that the upper end of the outer cylinder is removably fitted into the fitting cylinder.