JPH074812Y2 - Chemical bottles with nozzles - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a bottle of liquid medicine with a nozzle, such as eye drops containing vitamins.

"Prior Art" For example, the bottle of Japanese Utility Model Publication No. 61-11547 is known, and the bottle is formed by fitting an inner nozzle made of a hard synthetic resin into an outer nozzle made of a soft synthetic resin. The lower half of the nozzle is fitted into a bottle neck portion made of a hard synthetic resin, and an outward flange attached to the outer surface of the middle portion of the outer nozzle is placed on the upper end surface of the bottle neck portion. , The lower end of the inner nozzle is projected downward of the outer nozzle to form a reverse taper portion having a large outer diameter, and the lower end surface of the inner nozzle is covered by the upper end surface of the reverse taper portion and the outer surface of the upper end portion of the reverse taper portion is connected to the bottle mouth It is pressed against the inner surface of the neck.

"Problems to be solved by the device" It is known that when a nozzle made of a soft synthetic resin is used for a nozzle of a bottle for chemical liquids, components in the chemical liquid, such as vitamins, are adsorbed by the nozzles and the components in the chemical liquid become insufficient. There is.

Therefore, the above-mentioned conventional nozzle prevents the adsorption of the above components by making the inner surface part that comes into contact with the chemical liquid with a hard plastic material,
The outer surface is made of soft plastic to improve the sealing performance against the bottle neck, etc., but the nozzle tip is also doubled so that the inner nozzle tip faces inward and the outer nozzle tip faces inward. Since they are covered with a flange, and the liquid pouring holes are formed by both flange holes of both flanges,
When pouring chemicals, the inner surface of the flange hole of the outer nozzle adsorbs the above components, and if both nozzles are not fitted securely, the inner nozzle has less parts that directly contact the bottle than the outer nozzle. Therefore, the inner nozzle is easily lowered with respect to the outer nozzle, and since both the inner and outer nozzles have substantially the same shape, there is a drawback that a large amount of material is required for the outer nozzle.

The present invention proposes a nozzle that eliminates the drawbacks of conventional nozzles, can reliably prevent the adsorption of chemical components, and has a high sealing property for the neck of the bottle.

"Means for Solving the Problem" A bottle body 1 made of a hard synthetic resin in which a first engaging protrusion 5 is provided on the outer surface of the upper portion of the mouth / neck portion 3, an upper surface of the mouth / neck portion, and an intermediate portion of a tubular portion. An inner nozzle 6 made of a hard synthetic resin in which an outer flange 8 attached to the outer surface of the part is placed and the lower half cylinder part is fitted into the mouth / neck part 3, and a lower half cylinder to the upper outer surface of the mouth / neck part. The inward flange attached to the upper end of the lower half cylinder part while fitting the part 12 into engagement with the third engaging ridge 13 on the inner circumference of the lower end of the cylindrical part and the lower surface of the first engaging ridge 5. The lower surface of the wall 14 with the outward flange 8
While engaging with the upper surface, the seal portion 15 formed by a part of the inward flange-shaped wall is pressed against the upper outer surface of the mouth / neck portion 3,
In addition, the upper half cylinder portion standing upright from the inner peripheral portion of the inward flange-shaped wall is fitted to the outer surface of the upper half cylinder portion 9 of the inner nozzle to form the outer nozzle 11 made of soft synthetic resin.

[Operation] In the outer nozzle 11, the third engaging projection 13 on the inner circumference of the lower end of the cylinder engages with the lower surface of the first engaging projection 5 of the neck of the bottle body, and The lower surface of the peripheral portion is in contact with the upper surface of the outward flange 8 of the inner nozzle 6, so that the inner nozzle is securely fitted to the neck portion 3 of the bottle main body to prevent the inner nozzle from rising, and the sealing portion 15 prevents the mouth portion from necking. By contacting the outer surface of the portion 3, the sealability of the nozzle with respect to the mouth and neck is improved.

First Embodiment First, referring to FIG. 1, the first embodiment is a bottle body made of a hard synthetic resin, and a mouth / neck portion 3 is erected from the upper end of a body portion through a shoulder portion 2. An outward flange 4 is provided in the middle of the mouth / neck portion, and a first engaging ridge 5 is provided around the outer surface of the upper mouth / neck portion.

A lower half cylinder portion 7 of an inner nozzle 6 made of a hard synthetic resin is fitted into the mouth / neck portion 3. The inner nozzle has an outwardly facing flange 8 mounted on the upper end surface of the mouth and neck on the outer periphery in the vertical direction, and the upper half cylinder portion 9 of the flange is smaller than the lower half cylinder portion. The diameter is small and the upper outer diameter is tapered, and the second engaging projection 10 is provided around the outer surface of the upper portion.

The outer nozzle (11) is fitted on the upper outer surface of the mouth and neck and the outer surface of the inner nozzle. The outer nozzle is made of soft synthetic resin,
The lower half tubular portion 12 is fitted to the upper outer surface of the mouth / neck portion so that the third engaging projection 13 on the lower end inner periphery of the tubular portion is engaged with the lower surface of the first engaging projection 5 of the mouth / neck portion. , The upper half cylinder part standing up from the inner peripheral portion of the inward flange-shaped wall 14 attached to the upper end of the lower half cylinder part, and the upper end surface of the upper half cylinder part is engaged with the lower surface of the second engaging projection 10 to form the upper half of the inner nozzle. It is fitted to the outer surface of the tubular portion 9. The lower surface of the inner peripheral portion of the inward flange-shaped wall 14 is brought into contact with the upper surface of the outward flange 8 of the inner nozzle, and the cylindrical seal portion 15 hanging from the inward flange-shaped wall 14 is provided above the mouth / neck portion 3. The outer surface is pressed and sealed.

Reference numeral 16 is a cap, which is an inner cylinder 18 that hangs from the back surface of the top wall 17 of the cap.
A groove 19 is provided around the inner surface of the lower end, and the outer periphery of the outward flange 4 of the mouth / neck portion is fitted into the groove. Further, a packing 20 is provided in the upper end of the inner cylinder, and a lower surface is provided on the inner nozzle. The end faces are pressed together. An outer cylinder 21 is hung from the outer circumference of the top wall 17.

In the embodiment shown in FIG. 2, the inward flange-shaped wall 14 of the outer nozzle 11 is thick and a recess is provided on the lower surface of the inner peripheral portion, and the upper surface of the recess is pressed against the upper surface of the outward flange 8 of the inner nozzle 6, Moreover, the lower surface of the inward flange-shaped wall 14 outside the recess is used as a seal portion 15, and the seal portion is pressed onto the outer peripheral portion of the upper end surface of the neck portion of the bottle body. Further, in this embodiment, the upper outer surface of the inner nozzle is not provided with the second engaging projection 10, and the upper end portion of the inner nozzle has a small outer diameter, and the upper outer end portion of the outer nozzle 11 goes to the outer surface of the small outer diameter portion. The ridges 11a provided around the inner surface are fitted. In this embodiment, a plurality of seal ridges 7a for circumferentially press-contacting the inner surface of the mouth / neck portion are provided on the outer surface of the lower half cylinder of the inner nozzle.

"Effect of device" The present invention is configured as described above, and since the chemical liquid only touches the inner surface of the inner nozzle made of hard synthetic resin and does not touch the outer nozzle 11 made of soft synthetic resin, the component is made of soft synthetic resin material. In the outer nozzle 11, the third engaging projection 13 on the inner periphery of the lower end of the cylinder is attached to the lower surface of the first engaging projection 5 at the neck of the bottle body so that the chemical liquid in the bottle does not become insufficient. In addition, since the lower surface of the inner peripheral portion of the inward flange-shaped wall 14 is in contact with the upper surface of the outward flange of the inner nozzle, the inner nozzle 6 can be pressed against the bottle body to prevent liquid leakage and Since the seal portion 15 formed by a part of the inward flange-shaped wall of the nozzle is brought into pressure contact with the upper outer surface of the mouth / neck portion 3, the liquid leakage can be prevented double and the effect can be enhanced.

[Brief description of drawings]

FIG. 1 is a sectional view of the bottle of the present invention shown in a cap fitted state, and FIG. 2 is a half sectional view of the bottle showing a different embodiment. 1 ... Bottle body, 6 ... Inner nozzle 11 ... Outer nozzle

Claims (1)

[Scope of utility model registration request] 1. A bottle body 1 made of a hard synthetic resin, having a first engaging ridge 5 provided around the upper outer surface of a mouth / neck portion 3, and an upper surface of the mouth / neck portion, which is attached to an outer surface of an intermediate portion of a tubular portion. An inner nozzle 6 made of a hard synthetic resin, in which the outer flange 8 is placed and the lower half cylinder portion is fitted into the mouth / neck portion 3, and the lower half cylinder portion 12 is fitted to the upper outer surface of the mouth / neck portion. The lower surface of the inwardly facing flange 14 attached to the upper end of the lower half tubular portion while the third engaging projection 13 on the inner periphery of the lower end of the tubular portion is engaged with the lower surface of the first engaging projection 5. Is engaged with the upper surface of the outward flange 8 and the seal portion 15 formed by a part of the inward flange wall is pressed against the upper outer surface of the mouth / neck portion 3, and from the inner peripheral portion of the inward flange wall. Nozzle characterized by being formed by an outer nozzle 11 made of a soft synthetic resin, in which an upright upper half cylinder part is fitted to an outer surface of the upper half cylinder part 9 of the inner nozzle. A bottle of liquid medicine, etc.