JPS628039Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X-ray film cassette loaded with X-ray film during X-ray photography.

For X-ray photography, an intensifying screen is used in combination with an X-ray film.

The intensifying screens 1 and 2 are formed by two film holding surfaces 5a and 5b of a cassette 4, which has one side edge of a pair of film holding members 3a and 3b pivoted to be openable and closable by a hinge or the like, as shown in FIG. attached to.

One of the intensifying screens 1 and 2 is attached to one of the clamping members 3a with double-sided adhesive tape 7 via a cushion member 6 made of foamed elastic material, etc. The photosensitive paper 2 is directly attached to the film clamping surface 5b of the clamping member 3b of the cassette 4 with a double-sided adhesive tape 7.

The cassette 4 is used each time a photograph is taken by sandwiching a film 8 between the intensifying screens 1 and 2, as shown in FIG.

However, when such intensifying screens 1 and 2 are used a predetermined number of times, their functions deteriorate and are replaced, but at that time, the double-sided adhesive tape 7 is removed,
Another new intensifying screen is pasted using a new double-sided adhesive tape 7.

When peeling off the double-sided adhesive tape 7 that has deteriorated over time in order to replace the intensifying screens 1 and 2, the double-sided adhesive tape 7 stuck to the cushion member 6 is relatively easily peeled off, but the other side clamping member 3b
It is not easy to completely peel off the intensifying screen from the film clamping surface 5b, and adhesive remains on the film clamping surface 5b, making it difficult to attach a new intensifying screen.

This invention was made with attention to the above points,
In an X-ray film cassette, an intensifying screen is attached to each of the clamping surfaces of a pair of film clamping members that are pivotally connected at one side and can be opened and closed, and one of the intensifying screens is attached to one of the film clamping members. The intensifying screen is attached to the clamping surface of the film via a cushion material, and the other of the intensifying screens is firmly held by clamp members provided on both sides of the other clamping surface of the film clamping member. It is an object of the present invention to provide an X-ray film cassette that facilitates the work of replacing paper sheets.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 3 is a perspective view showing essential parts of an embodiment of the X-ray film cassette of the present invention.

In the figure, one film holding member 12a to which the intensifying screen 11 is attached via the cushion member 10 of the cassette 9 has the same structure as the conventional one.
There is no difference in structure from the conventional one shown in the figure.

Clamp members 13a and 13b are provided on both sides of the other film clamping member 12b of the cassette 9, and are provided with clamp members 13a and 13b that project horizontally from the upper part of the film clamping member 12b. Wide slits 16a and 16b are formed.

In such a cassette 9, the intensifying screen 15
The replacement work is carried out by pulling out the old intensifying screen from the entrance of the slits 16a and 16b and inserting a new intensifying screen therein.

When using the cassette 9, it is desirable to provide a cover (not shown) at the entrance of the slits 16a and 16b to prevent the intensifying screen from falling off.
The size of the intensifying screen 11 which is pasted facing each other,
Slits 16a, 1 so that the exposed surfaces have the same dimensions
It is desirable to make the size large enough to accommodate the part inserted into 6b.

FIG. 4 is a cross-sectional view showing a main part of another embodiment of the clamping member for an X-ray film cassette according to the present invention.

In this embodiment, the clamp 1 is made up of a leaf spring 18 fixed to a pin 17 on the outer periphery of the film clamping surface.
An appropriate number of clamps 9 are provided, and the intensifying screen is connected to this clamp 1.
9,... is configured to be fixed.

As explained above, the X-ray film cassette of the present invention allows the intensifying screen to be replaced extremely easily without leaving any adhesive or the like behind.

The above-mentioned clamping member is not limited to the above-mentioned embodiment, and any known means may be used as long as it is structured to clamp the periphery of the intensifying screen on the film clamping surface without covering the necessary photosensitive surface. It can be used for other purposes to obtain the same effect as described above.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional X-ray film cassette, Figure 2 is a partial cross-sectional view showing the state of the intensifying screen and film when the X-ray film cassette is used, and Figure 3 is a perspective view of a conventional X-ray film cassette.
The figure is a perspective view showing the main part of one embodiment of the X-ray film cassette of the present invention, and FIG. 4 is a cross-sectional view showing the main part of another embodiment of the clamp member of the X-ray film cassette of the present invention. It is. 9...Cassette, 10...Cushion member, 1
1, 15...Intensifying screen, 12a, 12b...Film holding member, 13a, 13b...Clamp member,
14... Film clamping surface, 16a, 16b... Slit, 17... Pin, 18... Leaf spring, 19...
...Clamp.

Claims (1)

[Claims for Utility Model Registration] 1. In an X-ray film cassette comprising an intensifying screen attached to each of the clamping surfaces of a pair of film clamping members which are pivotally connected at one side and can be opened and closed, the intensifying screen one of the intensifying screens is attached to one of the clamping surfaces of the film clamping member via a cushion material, and the other of the intensifying screens is fixed by clamp members provided on both sides of the other clamping surface of the film clamping member. An X-ray film cassette, characterized in that the intensifying screen can be taken out and inserted through an opening on a side surface of the clamp section. 2. The X-ray film cassette according to claim 1, wherein the intensifying screen fixed by the clamp member is larger than the other intensifying screen.