JPH0720048Y2 - Dropper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a dropper arranged to suck up a certain amount of liquid and discharge it by an extrusion operation.

"Prior art" The mouth of an elastically compressible hemispherical member is fitted to the upper end of the suction pipe, and the lower end of the suction pipe is put into the liquid while the hemispherical member is compressed. A dropper is widely used which is made to suck the liquid therein and discharge the liquid in the suction pipe by squeezing the hemispherical member again from the sucked state of the liquid.

[Problems to be solved by the invention] In the conventional dropper, it is inevitable that the suction liquid amount changes depending on the degree of pressing of the hemispherical member attached to the upper end of the suction pipe. Therefore, when it is desired to make the suction amount or the discharge amount constant, the suction pipe is provided with a scale and the suction liquid is adjusted so that the liquid level of the suction liquid coincides with the scale before the discharge.

However, such a suction amount adjusting operation is troublesome, and the present invention is provided so that a predetermined amount of liquid can be sucked and the liquid can be discharged without performing such an operation.

"Means for Solving the Problem" A pipe member 8 having a first outward flange 9 attached to an upper portion of a suction pipe 12 that hangs down into a container body, and an elastic dome-shaped wall 16 surrounding wall on the first outward flange. An adjusting rod 18 hanging from the lower surface of the central portion of the elastic dome-shaped wall 16 is closely attached to the second outward flange 17 attached to the lower end, and the adjusting rod 18 is inserted into the suction pipe 12.
The operating member (15) is vertically movable and fitted in a watertight manner, and the lower end of the adjusting rod (18) is located above the lower end of the suction pipe.

[Operation] When the top of the elastic dome-shaped wall 16 is pushed down from the illustrated state, the adjusting rod 18 descends inside the suction pipe 12, and when the elastic dome-shaped wall 16 is released, the adjusting rod 18 also rises due to its elastic return. Adjustment rod 18
The lower end is provided so as to be located higher than the lower end of the suction pipe 12, and the space inside the height difference becomes the liquid suction space.Therefore, the lower end of the adjusting rod 18 is at the same position as the lower end of the suction pipe 12 at the time of pushing down. If it is pushed down so as to be positioned downward, the amount of liquid sucked into the suction pipe is always constant.

[Embodiment] First, the embodiment shown in FIG. 1 will be described. Reference numeral 1 denotes a container body in which a mouth / neck portion 2 is erected. The cap-like member is provided with an inward flange 5 at the upper end of the peripheral wall, and an engaging projection 6 is provided around the upper end of the inner surface of the peripheral wall 4 or below.

The first outward flange 9 of the pipe member 8 is fitted into the upper portion of the peripheral wall 4, and the lower surface of the outer peripheral portion of the first outward flange is engaged with the upper surface of the engaging projection 6 to prevent the same from coming off. is doing. The pipe member is provided with the above-mentioned first outward flange 9 at the upper end of the tubular portion 10 that is fitted in a watertight manner to the inner surface of the neck of the container body, and through the tapered portion 11 projecting inward from the lower end of the tubular portion. And the upper part of the suction pipe 12 is suspended. The lower surface of the first outward flange 9 is engaged with the upper end surface of the mouth / neck portion 2.

A second outward flange attached to the upper surface of the first outward flange 9 at the lower end of the peripheral wall of the elastic dome-shaped wall 16 of the operating member 15.
17 is stuck. The actuating member (15) also hangs an adjusting rod (18) from the lower surface of the central part of its elastic dome-shaped wall (16) so that the adjusting rod can move vertically and watertightly into the description suction pipe (12). Adjustment rod
The lower end of the suction pipe 18 is located above the lower end of the suction pipe 12, and the space 20 inside the suction pipe between the lower end of the adjusting rod and the lower end of the suction pipe is used as a liquid suction space. The top portion of the elastic dome-shaped wall is exposed so as to be pushed down from the inward flange hole of the cap-shaped member 3, and the second outward flange 17 is formed.
The upper surface is engaged with the lower surface of the inward flange. Suction pipe
In order to fit the adjusting rod 18 into the inside in a watertight manner, a sealing projection 21 may be provided around either the lower inner surface of the suction pipe 12 or the lower outer surface of the adjusting rod.

In the embodiment shown in FIG. 2, the peripheral wall 4 of the cap-shaped member 3 is a double inner-outer peripheral wall, and the height of the elastic dome-shaped wall 16 is first.
The size is larger than that in the illustrated embodiment, and this causes the suction pipe inner space 20 to be formed wider.

As can be understood from the comparison between these FIGS. 1 and 2, even if the tube member 8 and the actuating member 15 having the same size are used, the liquid suction is changed by changing the rising height of the elastic dome-shaped wall 16. The raising capacity can be changed. In order to change the standing height, change the length of the inward flange 5 of the cap-shaped member 3,
The adjustment can be made by changing the width of the portion of the second outward flange 17 sandwiched between the first outward flange 9 and the inward flange 5, and various other methods may be considered.

The above-mentioned cap-shaped member 3 is not always necessary, and in this case, the first and second outward flanges are bonded together.

"Effect of the device" The present invention has the configuration described above, and the adjustment rod 18 is inserted into the suction pipe 12.
Since the adjustment rod is shortened and only the space between the lower end and the lower end of the suction pipe is used as the liquid suction space,
When the elastic dome-shaped wall 16 is pushed down and released, the liquid is sucked only into the above space, and it is possible to eliminate the inconvenience of the conventional method, in which the suction amount is too large and the adjustment is troublesome. Further, the adjustment rod 18 is hung down from the lower surface of the central portion of the elastic dome-shaped wall 16, and the adjustment rod 18 is lowered by pushing down the elastic dome-shaped wall, and is restored by the elastic restoration of the elastic dome-shaped wall by releasing the pushing down. Is provided so that the liquid is sucked into the lower end portion of the suction pipe 12, the vertical movement of the adjusting rod in the suction pipe can be surely and easily performed, and the liquid suction is performed by the suction pipe. This can be done by putting the lower end into the liquid and compressing the elastic dome-shaped wall 16 and elastically restoring it.Therefore, unless the liquid contained in the container is extremely reduced, the upper part of the dropper is kept above the container. Since only the lower end of the suction pipe 12 can be put into the liquid to suck the liquid, it is convenient for sucking and discharging the liquid into the dropper several times in succession.

[Brief description of drawings]

FIG. 1 is a sectional view of a dropper of the present invention shown together with a container body, and FIG. 2 is a sectional view showing a different embodiment. 8 ... Pipe member, 15 ... Actuating member

Claims (1)

[Scope of utility model registration request] 1. A pipe member 8 provided with a first outward flange 9 on an upper portion of a suction pipe 12 for hanging down into a container body, and a pipe member 8 provided on the lower end of a peripheral wall of an elastic dome-shaped wall 16 on the first outward flange. An adjusting rod 18 which is closely attached to the second outward flange 17 and hangs down from the lower surface of the central portion of the elastic dome-shaped wall 16 is moved into the suction pipe 12 from the working member 15 which is vertically movable and fitted in a watertight manner. The dropper is characterized in that the lower end of the adjusting rod 18 is located above the lower end of the suction pipe.