JPH0214042Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a nozzle used for injecting an X-ray packaging film developer, etc.

BACKGROUND ART For dental X-ray photography, a packaging film is used in which an X-ray film is enclosed in a bag made of synthetic resin or the like. The packaging film is very convenient because it is easy to handle during photographing, and there is no need to carry out development and fixing processes in a dark room after photographing, and the developer and fixer can be poured directly into the bag.

Conventionally, there was no particular nozzle for injecting developer and fixer into such a packaging film, and conventionally, injecting was mainly done using a syringe, but this had the following disadvantages. That is, since the tip of the injection needle a of the syringe is formed obliquely, when injecting into a packaging film as shown in FIG. When breaking through the sealing joint line 4 between the sealing joint lines 4 (Fig. 2), the tip of the injection needle a shifts from the center of the sealing joint line 4, and the sealing joint line 4
Otherwise, the bag 1 would be punctured and the film inside would be exposed to light. Furthermore, when the tip of the injection needle a breaks through the sealing joint line 4, fragments 1' of the torn bag 1 enter into the injection needle a, and the opening at the tip of the injection needle a.
It was often the case that a' was blocked by debris 1', making it difficult to inject liquid into the bag 1 (Fig. 3). Furthermore, in the above case, if the injection needle a is inserted too far into the bag body 1, the opening a' at the tip of the injection needle a will come close to the side edge 5 of the bag body 1 (Fig. 4). It became difficult for the liquid ejected from part a' to flow into the film storage part 6, resulting in poor development and fixing, and it was sometimes impossible to obtain a clear photographed image.

The purpose of this invention is to solve the above-mentioned drawbacks and provide a nozzle suitable for injecting a developer into an X-ray packaging film.

Examples of this invention will be described below with reference to the drawings. In FIGS. 5 to 7, reference numeral 10 denotes a nozzle of this invention, which is composed of a cylindrical body 11 having a substantially elliptical cross section, with a closed tip and a tapered shape, with a long axis on the circumferential surface near the tip. A liquid inlet 12 is opened at one side in the A direction. 1
Reference numeral 3 denotes a large-diameter connecting portion connected to the base of the cylindrical body 11, and the inner periphery of the connecting portion is designed such that the liquid container 30 can be fitted onto the outer periphery of the mouth portion 31.

The cylindrical body 11 having a substantially elliptical cross section has both sides of its outer periphery in the long axis A direction protruding outward to form acute-angled edges 14, 14, and one side thereof, that is, either one A liquid inlet 12 is formed at the edge 14 of the housing. Note that the hollow part 1 of the cylindrical body 11
The cross-sectional shape of 5 may be formed to have the same shape as the outer periphery, or may be formed to be different from the outer periphery.

In addition, the cylindrical body 11 is formed to have the same thickness from its tip to the connection part 13, and is also formed so that it gradually becomes thicker as it approaches the connection part 13, as shown in FIGS. 8 and 9. You may.

In addition to forming the cylindrical body 11 straight,
It may also be implemented by being bent as shown in the tenth example.

In addition to being formed as a unit product, the nozzle 10 can also be formed integrally with a liquid container 30 as shown in FIG. 11. In this case, the liquid container 30 may be formed to have a volume that can accommodate only one injection amount.

The nozzle 10 of this invention is constructed as described above, and in use, the tip of the nozzle 10 is inserted into the bag 1 so that the liquid inlet 12 is directed toward the film storage section 6, as shown in FIG. Front and back sheets 7 and 8 separated from the side edges by upper and lower joining lines 2 and 3
The tip of the nozzle 10 may be inserted into the bag body 1 by inserting the nozzle 10 between the bags 1 and pierce the sealing joint line 4 with its tip.

In this case, the nozzle 10 has a substantially elliptical cross section,
Edges 14 having acute angles on both sides in the direction of the long axis A,
14, so the upper and lower joining lines 2 and 3
When inserting between the front and back sheets 7 and 8 separated by
The tapered shape of the tip and the edges 14, 14 on both sides serve as a guide, allowing for smooth insertion, and the relatively flat cylindrical body 1 having an approximately elliptical cross section.
1 is sandwiched between the front and back sheets 7, 8, its rotation is restricted and the edges 14, 14 on both sides are oriented in the direction between the sheets 7, 8. Make sure that the liquid inlet 12 located on one side of the film storage section 6
In addition, the outer periphery of the nozzle 10 comes into close contact with the inner surfaces of the front and back sheets 7, 8, so that there is no gap between the outer periphery of the nozzle 10 and the inner surfaces of the sheets 7, 8 ( 13th
Figure) has the advantage of preventing liquid leakage during injection.

Note that the nozzle 10, in which the cylindrical body 11 is formed to become thicker toward the base, has an upper joining line 2' formed obliquely with respect to a lower joining line 3, as shown in FIG. It is used for injection into the bag body 1 that is being used.

As explained above, the nozzle 10 of this invention is
It consists of a cylindrical body 11 whose outer periphery is at least approximately elliptical in cross section, and the tip is closed and tapered,
Since the liquid inlet 12 was opened on the circumferential surface near the tip,
When inserting the packaging film into the bag body 1, the sealing joint line 4
It is possible to reliably pierce the center of the bag body 1, which not only eliminates the occurrence of photosensitive accidents that occur when injecting with a syringe needle, but also prevents the torn pieces of the bag body 1 from occurring when the syringe is pierced. There is no possibility that it will get into the nozzle 10.

In particular, the nozzle 10 has a relatively flat cylindrical shape with an approximately elliptical cross section, and the liquid inlet 12 is formed at one side in the longitudinal direction near the tip. The rotation of the nozzle 10 sandwiched between the front and back sheets 7 and 8 is restricted, and both sides in the longitudinal direction are oriented toward the gap between the sheets 7 and 8, so that the nozzle inserted into the bag body 1 Even if the tip of the nozzle 10 is located close to the side edge 5 of the bag, the liquid inlet 12 can be reliably oriented toward the film storage section 6, and the outer peripheral surface of the nozzle 10 and both sheets 7, 8 can be reliably oriented. There is no risk of liquid leakage due to gaps between the two being in close contact with each other, and there is no problem with liquid injection.

Thus, according to this invention, it is possible to provide a nozzle suitable for injecting developer, etc. into an X-ray packaging film.

[Brief explanation of the drawing]

FIG. 1 is a front view of the injection needle of the syringe into the bag body of the packaging film, and FIGS. 2 to 4 are explanatory views of the case of inserting the needle of the syringe into the bag body. The figure is an enlarged sectional view showing the state immediately before breaking through the sealing joint line, FIG. 3 is an enlarged sectional view showing the state immediately after breaking through, and FIG. 4 is an enlarged sectional view showing the state inserted into the bag. Fig. 5 is an enlarged perspective view showing an embodiment of this invention, Figs. 6 and 7 are enlarged sectional views taken along lines - and - in Fig. 5, and Figs. 8 to 11 are modified examples of this invention. FIGS. 8 and 9 are plan views, FIGS. 10 and 11 are perspective views, FIG. 12 is a front view showing the nozzle of this invention in use, and FIG. 13 is the view shown in FIG. 14 and 15 are enlarged cross-sectional views of the line, and are explanatory views when inserting the nozzle into the bag body. The figure is an enlarged sectional view showing the state in which the packaging film is inserted into the bag, and FIG. 16 is a front view showing a modified example of the packaging film. 10... Nozzle, 11... Cylindrical body, 12... Liquid inlet, 14, 14... Edge, I... Long axis.

Claims (1)

[Claims for Utility Model Registration] 1. Consisting of a cylindrical body 11 whose outer periphery is approximately elliptical in cross section,
A nozzle for injecting a developer, etc. into an X-ray packaging film, the tip of which is closed and tapered, and has a liquid inlet 12 opened at one side in the long axis A direction on the circumferential surface near the tip. . 2. The utility model registration claim described in claim 1, wherein both sides of the outer periphery of the cylindrical body 11 having a substantially elliptical cross-section in the long axis A direction project outward and are formed into acute-angled edges 14, 14. Nozzle for injecting developer, etc. into X-ray packaging film.