JPH0210526Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a nozzle used when injecting a developer or the like into an X-ray packaging film.

Conventionally, packaging films have been used for dental X-ray imaging because they are easy to handle during imaging and can be developed and fixed without a darkroom.

As shown in FIG. 1, the above-mentioned packaging film is made by enclosing an X-ray film 20 in a synthetic resin bag 10, and the bag 10 is made up of two sheets 11, 12.
It is formed by joining the side edges 13, 14 and the lower edge 15 of the bag body 10 by heat-sealing or the like.
A first joining line 16 and a second joining line 17 are formed by linearly heat-sealing the sheets 11 and 12 so as not to reach the side edges 14 and 13. and the first joining line 16
and the second joining line 17, there is a third connecting line between them.
A bonding line 18 is formed in the same manner as the bonding lines 16 and 17 described above.

After photographing, the sheet 11 between the first joining line 16 and the second joining line 17 from the side edge of the bag 10,
Insert the nozzle 40 of the injection container 30 between 12 and the third joining line 18 at the tip of the nozzle 40.
is peeled off to expose the tip of the nozzle 40 into the bag 10 (FIG. 2), and a prescribed amount of developer and fixer are injected into the bag 10. In this way, development and fixing are performed by sequentially injecting the developer and fixer into the bag body 10. After the fixing is completed, the upper end of the bag body 10 is grasped and the second joining line 17 and the first By peeling off the joining line 16, the upper part of the bag 10 is opened, and the X-ray film 20 inside is exposed through this opening.
I take it out and observe the photographed image.

However, in the case of the bag body 10 of the above-mentioned packaging film,
First joining line 16 on the inner surfaces of sheets 11 and 12
Also, the vicinity of the second joining line 17 was difficult to curve into an arc shape. Further, since the nozzle 40 is formed in a cylindrical shape, the nozzle 40 can be attached to the bag body 10.
When inserted into the inner surface of sheets 11 and 12 and nozzle 4
0 and the outer circumference as shown in FIG. 3, and liquid flows backward through these gaps A and A, causing liquid leakage.

This invention has been made in view of the above-mentioned points, and the object is to provide a nozzle that can inject a developer, etc. into the bag body of the X-ray packaging film without leaking the liquid.

Examples of this invention will be described below with reference to the drawings. In FIGS. 4 and 5, reference numeral 50 denotes a nozzle of this invention, the outer periphery of which is formed into a cylindrical shape with a substantially elliptical cross section, and both sides of the outer periphery in the direction of the long axis a protrude outward and form acute angles. shaped edge 51,5
It is formed in 2. Reference numeral 53 denotes an insertion part for the mouth part 31 of the injection container 30 provided at the base of the nozzle 50, and is adapted to be fitted onto the outer periphery of the mouth part 31. 5
4 and 55 are oblique portions formed on both sides of the tip of the nozzle 50 in the direction of the long axis a. The hollow portion 56 of the nozzle 50 may be formed so that its cross section has the same shape as the outer periphery of the nozzle 50 as shown in the figure, or may be formed into a circular shape or other shape different from the outer periphery of the nozzle 50.

In addition to implementing the nozzle 50 of this invention as described above, it is also possible to implement the nozzle 50 with the following modifications. That is, in addition to forming the nozzle 50 with the same thickness from the tip to at least the vicinity of the base, it is also possible to form the nozzle 50 so that it becomes thicker toward the base as shown in FIG.

In addition, the nozzle 50 has an insertion portion 53 made of synthetic resin.
In addition to forming other parts from metal, it is also possible to form the entire structure from metal, or from synthetic resin as shown in FIG.

In addition to forming the nozzle 50 straight,
It is also possible to form it so as to be bent as shown in FIG.

In addition, the nozzle 50 is formed so as to be detachable from the mouth portion 31 of the injection container 30.
As shown in FIG. 9, it is also possible to provide the injection container 30 integrally with the opening 31 of the injection container 30. In this case, it is preferable that the injection container 30 is filled with one batch of developer and fixer.

It goes without saying that the structure of the injection container for mounting the nozzle 50 is not limited to the above.

The nozzle 50 of this invention is constructed as described above, and as shown in FIG. 10, it is inserted into the bag 10 and used for injecting the developer and fixer as in the conventional case.

In this case, since the outer periphery of the nozzle 50 has a cylindrical shape with a substantially elliptical cross section, the space between the front and back sheets 11 and 12 of the bag body 10 is As a result, the edges 51 and 52 on both sides in the long axis a direction correspond to the first and second joining lines 16 and 17, respectively, and the nozzle 50 inserted into the sheet is sandwiched between the sheets 11 and 12. The outer circumferential surface between the edges 51 and 52 comes into contact with the sheets 11 and 12 (FIG. 11).

Note that when the nozzle 50 is formed to become thicker toward the base, the second joining line 17 is formed obliquely with respect to the first joining line 16, as shown in FIG. It may be used to inject a developer or the like into such a bag 10.

As explained above, the nozzle 50 of this invention is
The X-ray packaging film is formed into a cylindrical shape with an outer periphery and a substantially elliptical cross section, and both sides of the outer periphery in the long axis a direction are formed into acute-angled edges 51 and 52 that protrude outward. The nozzle 5 is attached to the bag body 10 of
0, the first joining line 16 and the second joining line 17 on the inner surfaces of the sheets 11 and 12
The vicinity of the nozzle 50 is in close contact with the outer periphery of the nozzle 50 (11th
), there is no gap between the inner surfaces of the sheets 11 and 12 and the outer periphery of the nozzle 50. Therefore, when injecting the developer, etc., it is possible to prevent the liquid from leaking, and it is possible to reliably inject a specified amount of the liquid into the bag body 10.

Moreover, according to this invention, since both sides in the longitudinal direction are formed into acute-angled edges 51 and 52 that protrude outward, when inserting the nozzle 50 into the bag body 10, the edges 51 and 52 on both sides are This will serve as a guide, allowing the nozzle 50 to be inserted smoothly.

Further, when the tip of the nozzle 50 is formed with oblique portions 54 and 55 on both sides in the direction of the long axis a, the third bonding line 18 can be more easily separated by the tip of the nozzle 50. There is.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an example of a dental X-ray packaging film, Fig. 2 is a plan view showing the injection state of developer, etc., and Fig. 3 is an enlarged view of Fig. 2 - line. A perspective view, FIG. 4 is an enlarged perspective view showing an embodiment of this invention, FIG. 5 is an enlarged sectional view taken along the line of FIG. 4, and FIGS. 6 to 9 show modified examples of this invention.
Figures 6 and 7 are plan views, Figure 8 is a perspective view of the device installed on the injection container, Figure 9 is a perspective view of the device installed integrally with the injection container, and Figure 10 is a nozzle of this invention. A plan view showing the state of injection of developer, etc.; FIG. 11 is an enlarged sectional view taken along line XI-XI in FIG. 10;
FIG. 12 is a plan view showing another example of the X-ray packaging film. 50... Nozzle, 51, 52... Acute edge, a... Long axis.

Claims (1)

[Scope of utility model registration request] A developing solution, etc. for an X-ray packaging film whose outer periphery is cylindrical with a substantially elliptical cross section, and whose both sides in the long axis a direction of the outer periphery are protruded outward and formed into acute-angled edges 51 and 52. injection nozzle.