JPS6037541Y2 - X-ray film support structure in an X-ray film observation machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a film support structure in an X-ray film observation machine.

Conventionally, as shown in FIG. 1, the film support structure of an X-ray film observation machine has a dogleg-shaped bent part B at the top of the frame FL, which is connected to the front plate P such as glass or acrylic plate. A groove H is formed in the groove H, and a roller R is inserted into this groove H.
is loosely fitted into the groove H in a state in which it is in line contact with the receiving surface S of the bent portion B and the front plate P, and an X-ray film (hereinafter simply referred to as film) is inserted.

) f is sandwiched between the outer peripheral surface of the roller R and the front plate P, and when attaching the film f, the film f is sandwiched between the roller R and the front plate P at the opening K of the groove H. A method is used in which the film f is inserted into the film.

However, when removing the film f mounted in this way, if the film f is pulled downward (in the direction of the arrow a in the figure), the roller R will wedge the film f because the 11H is sandwiched downward. It gets wedged in by the action and is difficult to remove.

For this reason, a method is used to remove the film f by pulling it forward (in the direction of the arrow in the figure) and lifting the roller R slightly upwards, but this method still prevents the film f from being bitten. damage to the edges,
It was easy to cause bending, etc.

In addition, in order to prevent such biting of the film f, it is possible to reduce the angle θ between the plane perpendicular to the front plate P and the receiving surface S, but in that case, the force holding the film f There was a problem in that the film f became smaller and the film f naturally slipped off.

In view of the above, an object of the present invention is to provide an X-ray film support structure that can reliably hold an X-ray film and that can be easily removed without damaging the edges.

Next, the present invention will be explained based on illustrated embodiments.

In the figure, reference numeral 1 denotes the main body of a rectangular observation device, inside of which fluorescent lights 2 to 2 and reflectors 3 to 3 are provided, and the front part is made of glass, acrylic, etc. front panel 4
A rectangular frame member 6, which is made by doubly fitting a translucent plate 5 made of acrylic or the like, is attached, and this frame member 6 is removable from the main body 1.

Further, a support part 7 for press-holding the film f against the front plate 4 is provided at the upper part of the frame member 6, and a receiver 8 having an angular cross section is provided at the lower part. will be explained in more detail.

In FIG. 2, the support part 7 is the front plate 4 of the frame member 6.
It has a bent part 9 extending downward from the peripheral edge, and between this bent part 9 and the front plate 4, there is a groove similar to the bent part 9, as shown in FIG. A rectangular plate 10 having a length of approximately 100 mm is provided, and bar-shaped indenters 11 to 11 each having approximately the same length are disposed below the plate 10 on the front plate 4 side.

On the other hand, as shown in FIG. 4, fitting grooves 13 and 14 are formed in the frame member 6 to support the respective ends of the front plate 4 and the translucent plate 5 via sealing materials 22 and 23. .

The bent portion 9 has an end portion 15 inclined at an angle α with respect to a plane perpendicular to the front plate 4.

Further, the rod-shaped indenter 11 is supported in a line contact state between the receiving surface 16 of the end portion 15 and the front plate 4, and the space 17 between the rod-shaped indenter 11 and the bent portion 9 is , the plate material 10
is loosely fitted with its lower part in contact with the rod-shaped indenter 11 and its lower end supported by the receiving surface 16 of the bent part 9,
Its upper end is located in the groove 18 above the cavity 17.

Therefore, in the state shown in the figure, the contact portion 19 of the rod-shaped indenter 11 on the front plate 4 is subjected to a pressing force F1 due to the weight G of the rod-shaped indenter 11 and a pressing force F1 applied to the rod-shaped indenter 11 by the weight G1 of the plate material 10. F2 acts, so a force of F + F2 is applied to the front plate 4.

Here, the angle α of the end portion 15 is set to be as small as possible so that the film f does not bite between the rod-shaped indenter 11 and the front plate 4 at all as in the conventional example shown in FIG. The pressing force F by only the rod-shaped indenter 11 is
The size is such that the film f can be held in a normal state without slipping.

In the above configuration, when the film f is inserted between the rod-shaped indenter 11 and the front plate 4 as shown in FIG. With the assistance of the pressing force F2 from the plate material 10, it is securely crimped and fixed.

Now, the film f is removed from such a state, and the method for this is as shown in Fig. 5, when the film f is pulled downward (in the direction of the arrow a in the figure) as shown in Fig. 5, as shown above. Since the wedge action does not work due to the angle α of the end portion 15, the rod-shaped indenter 11 rotates in the direction A in the figure due to frictional force along with the movement of the film f, and the film f is removed smoothly without any trouble.

In addition, as another method of removal, as in the conventional example shown in Fig.
Even when the film f is pulled up, the rod-shaped indenter 11 easily rotates along with the film f and is removed smoothly in the same manner as described above.Furthermore, as shown in FIG. It can also be easily removed by moving the rod-shaped indenter 11 and the plate material 10 upward to form a gap 21 between the rod-shaped indenter 11 and the front plate 4.

As is clear from the above explanation, this invention prevents the X-ray film from being bitten by the inclination of the end of the bent part of the X-ray film support section on the upper part of the frame member. In addition to making the angle of approximately , X-ray film is
When installed, it is held stably and reliably under the pressure of both the rod-shaped indenter and the plate material, and when removed, the X-ray film can be pulled downward without having to bend it like in the past. For example, it can be smoothly and easily removed without causing any biting.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional X-ray film support part.
Figures 2 to 6 show an embodiment of the present invention, Figure 2 is a front view of an X-ray film observation machine, Figure 3 is a partially enlarged view of Figure 2 showing the structure inside the support section, and Figure 4 is a IV- in Figure 3
5 is a sectional view similar to FIG. 4 showing a state in which the X-ray film is attached, and FIG. 6 is a sectional view showing a state in which the X-ray film is bent and removed.
It is a sectional view similar to the figure. DESCRIPTION OF SYMBOLS 1...Main body, 2...Fluorescent light, 4...Front plate,...Frame member, 7...Support part, 9・・・・・・Folded portion, 0 ・・・Plate material, 11 ・・・ Rod-shaped indenter, 15 ・・・ End part, 7 ・・・ Blank space, f ...X-ray film.

Claims (1)

[Scope of utility model registration request] A main body having a light source such as a fluorescent light inside, a frame member attached to the front surface of the main body and fitted with a front plate such as an acrylic plate, and a supporting portion for an X-ray film on the upper part of the frame member. In the X-ray film observation machine, the support part has a bent part extending downward from the frame member, the bent part has an end part inclined toward the front plate, and A rod-shaped indenter is supported between the end portion and the front plate, and the end portion of the bent portion is tilted at an angle such that the X-ray film is not subjected to a biting action between the rod-shaped indenter and the front plate. In addition, a plate material is loosely fitted into the upper space between the bent portion and the rod-shaped indenter, so that the weight of the plate material further presses the rod-shaped indenter toward the front plate. An X-ray film support structure in an X-ray film observation machine.