JPH0423828Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a container for dispensing a fluid in small amounts in a drip-like manner.

[Conventional technology]

Conventionally, Japanese Utility Model Publication No. 12648/1983 is known as a drip container. As shown in FIG. 5, in this publication, the body of the cylindrical container 20 inside the outer cylinder 35 is pressed with a button 30 provided on the body of the outer cylinder 35.
The liquid content is dispensed in a drip form.

Further, there is a device for dispensing liquid in the form of a drip in Japanese Utility Model Application Publication No. 163112/1983. In this publication, as shown in FIG. 6, a flexible top plate 43 of an elastic head body 42 is pressed by a click button 30, and the liquid content is poured out in the form of a drip.

There is also a dripping container described in Japanese Utility Model Application Publication No. 182374/1983. In the dripping container described in this publication, when a push button is pressed, a pressing piece provided on the push button moves forward, and an inclined cam surface provided on the pressing piece slides into contact with an inclined cam surface provided inside the outer cylinder.

Then, the squeeze piece collapses inward, squeezes the container body, and causes the content liquid to drip.

[The problem that the idea aims to solve]

The conventional one shown in FIGS. 5 and 6 is as follows:
The click button 30 is used to press the cylindrical container 20 over a wide range. Therefore, although it is suitable for dispensing a relatively large amount with one press, it is difficult to dispense a small amount accurately.

The dripping container described in the above-mentioned Japanese Utility Model Publication No. 182374/1988 can dispense the amount of liquid much more accurately than the containers shown in FIGS. 5 and 6, but it is still It is difficult to accurately pour out a sufficiently small amount of liquid.

The present invention has been developed in view of the above-mentioned matters, and its technical problem is to enable accurate dispensing of a small amount of liquid.

[Means to solve the problem]

In the present invention, a head 5 is provided at the mouth and neck part 21 of a soft and elastic cylindrical container 20 made of synthetic resin, and a small-diameter spout 8 is provided in the head 5. A tapered part 23 is formed in the part with a smaller diameter at the rear, a step part 24 is provided at the rear of the cylindrical container 20, and a knock button 30 is slidably fitted in the rear of the cylindrical container 20. A push rod 31 is extended from the knock button 30, and an inclined surface 32 matching the tapered portion 23 is provided at the tip of the push rod 31.
The sloped surface 32 is brought into contact with the taper part 23, and a lowering stop step part 33 is provided inside the knock button 30 to abut against the step part 24 and stop the knock button 30 from descending. A rising restraining step 34 is provided on the outside of the cylindrical container 20 , and an outer cylinder 35 is fitted on the outside of the cylindrical container 20 and the pressing rod 31 . Attach the outer cylinder 3
5, a restraining protrusion 3 that is in contact with the rise restraining stepped part 34 to restrain the knock button 30 from rising.
6 was provided, and the cap 1 was fitted into the mouth and neck part 21 of the cylindrical container 20 to form a drip container.

[Effect]

In the present invention, when the cap 1 is removed from the neck part 21 of the cylindrical container 20 and the knock button 30 is pressed,
The knock button 30, whose rise restraining step 34 was in contact with the restraining step 36 of the outer cylinder 35, moves forward a certain distance, and the descending stop step 33 of the click button 30 comes into contact with the step 24 of the cylindrical container 20. and stop.

Then, the pressing rod 31 also moves forward by a certain distance accurately and presses the tapered portion 23 of the cylindrical container 20 by a certain distance accurately. In this case, the tapered portion 23
Since it is the tip of the pressing rod that presses the cylindrical container 20, the concave area of the tapered portion 23 of the cylindrical container 20 is small.

Furthermore, the distance to which the knock button 30 is pushed is
If l1 is the distance that the taper part 23 is recessed perpendicularly to the wall surface, then l2 is equal to l1Sinθ, so the depth l2 of the recess of the wall surface of the taper part 23 can be made small relative to the distance l1 that the knock button 30 is pushed forward. Can pour out liquid.

〔Example〕

1 and 2 show an infusion container according to an embodiment of the present invention, in which a flange 14 is attached to the mouth and neck part 21 of a soft and elastic cylindrical container 20 made of synthetic resin.
The retaining tube 10 provided with the retaining tube 10 is fitted onto the outside, and the locking concavities and convexities 22 of the mouth and neck portion 21 are engaged with the locking concavities and convexities 12 of the holding tube 10.

Then, the mouth and neck part 21 fitted with this holding cylinder 10 are
The head 5 is fitted into the head 5, the locking projections and recesses 7 of the head 5 are engaged with the locking projections and recesses 11 of the holding tube 10, and the inner insertion tube 6 of the head 5 is inserted into the mouth and neck portion 21. By doing so, the head 5 is fixedly attached to the mouth and neck part 21 of the cylindrical container 20.

The head 5 is provided with a spout 8 having a small diameter, and a tapered part 23 with an inclination angle θ of 20 degrees is formed in the body of the cylindrical container 20 and has a smaller diameter at the rear. A stepped portion 24 is provided in the step portion 24 .
A click button 30 is slidably fitted to the rear of the cylindrical container 20 on which the spring 26 is placed.

Two pressing rods 31 are extended from the knock button 30, and an inclined surface 32 formed at the tip of the pressing rods 31 with an inclination angle θ of 20 degrees is brought into contact with the tapered portion 23.

The stepped portion 24 is located inside the click button 30.
A descending stop step 33 is provided to stop the knock button 30 from descending by coming into contact with the push button 30 , and a rise stop step 34 is provided outside the click button 30 . 35 and by engaging the locking projections and recesses 37 of the outer cylinder 35 with the locking projections and recesses 15 of the holding cylinder 10, the outer cylinder 35 is attached to the mouth and neck part 21 of the cylindrical container 20.
It is attached to.

Furthermore, a restraining protrusion 36 is provided at the rear end of the outer cylinder 35, and the restraining protrusion 36 abuts against the rise restraining step part 34 to restrain the knock button 30 from rising. It also prevents them from escaping. Then, by fitting the cap 1 into the holding cylinder 10 and screwing together the screws 13 and 2, the cap 1 is attached to the neck part 21 of the cylindrical container 20.
is fitted, and the spout 8 is closed with the protruding stopper 3.

In this embodiment, by pushing the button 30 forward by 1 mm, the tapered portion 23 of the cylindrical container 20 is recessed perpendicularly to the wall surface by the amount described below. In other words, since l1Sinθ=l2, 1mm
×0.342=0.342mm, and the depth of the concave perpendicular to the wall surface of the tapered portion 23 is 0.342mm.

FIG. 3 shows another embodiment, and hereinafter similar parts will be denoted by the same reference numerals and explanations will be omitted.

In this embodiment, an outer cylinder 35 is fixed directly to the mouth and neck part 21 of a cylindrical container 20, and a cap 1 is fitted onto the outer cylinder 35.

FIG. 4 shows another embodiment, in which the cylindrical container 20 and the head 5 are integrally formed, and the outer cylinder is directly fixed to the mouth and neck portion 21 of the cylindrical container 20. Then, the cap 1 also directly connects the mouth and neck 21.
It was screwed on.

[Effect of idea]

In the present invention, the tapered part 23 of the cylindrical container 20 is pressed by the pressing rod 31 extending from the knock button 30, so that the area of the tapered part 23 dented by being pressed is small, and the tapered part 23 is pressed by the pressing rod 31. Since the pressure is applied by the inclined surface 32 of the taper 31, the recess depth l2 of the taper part 23 can be made smaller than the distance l1 the knock button 30 is pushed forward, so that a small amount of liquid can be poured out accurately.

In the present invention, the inclined surface 32 of the pressing rod 31 provided on the knock button 30 slides into contact with the tapered portion 23 of the cylindrical container 20 and presses the tapered portion 23, so that the pressing rod 31 does not bend. The taper portion 23 can be pressed by moving forward in a straight line, and the push button 30 can be pressed smoothly.

Further, in the present invention, the downward position of the knock button 30 is stopped by the stepped portion 24 and the downward restraining step 33, and the upward position is restricted by the restraining protrusion 36 and the upward restraining step 3.
4, the sliding distance of the knock button 30 is always constant, and a constant amount of contents can always be dispensed accurately.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is a sectional view of main parts of another embodiment, and Fig. 4 is a main part of another embodiment. Cross section, 5th
FIG. 6 is a sectional view of a conventional example. 1... Cap, 5... Head, 8... Spout,
20... Cylindrical container, 21... Mouth and neck part, 23... Taper part, 24... Step part, 30... Knock button, 31... Pressing rod, 32... Inclined surface, 33...
Lowering restraining step portion, 34... Rising restraining step portion, 35...
Outer cylinder, 36... restraining protrusion.

Claims (1)

[Scope of utility model registration request] Soft and elastic synthetic resin cylindrical container 20
A head 5 is provided in the mouth and neck part 21 of the cylindrical container 20 , and a small-diameter spout 8 is provided in the head 5 .
A tapered part 23 is formed in the body of the cylindrical container 20, and a step part 24 is provided in the rear part of the cylindrical container 20. A knock button 30 is provided in the rear part of the cylindrical container 20.
A press rod 31 is provided to extend from the knock button 30, and an inclined surface 32 that matches the tapered portion 23 is provided at the tip of the press rod 31.
This inclined surface 32 is brought into contact with the tapered part 23, and the stepped part 2 is placed inside the click button 30.
A descending restraint step 33 is provided on the outside of the knock button 30 to prevent the knock button 30 from descending. A tube 35 is fitted onto the outside, and this outer tube 35 is attached to the cylindrical container 20.
A restraining protrusion 36 is provided at the rear end of the outer cylinder 35 to prevent the upward movement of the knock button 30 by contacting the upward restraining step 34. A drip container with a cap 1 fitted into the mouth and neck 21 of the patient.