JPH0648509Y2 - Sheet film storage magazine for X-ray fast photography equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a sheet film storage magazine used in an X-ray speed photography apparatus.

B. Prior Art Conventionally, as shown in FIG. 9, in an X-ray rapid photographing apparatus, as shown in FIG. 9, a plurality of supply magazines M ₁ and M ₂ accommodating and stacking unphotographed sheet films F ₁ of different sizes and photographing of each size. A recovery magazine M ₃ that stores the used sheet film F ₂ in common is loaded, and a suction cup 36 is used from each of the supply magazines M ₁ and S ₂ .
The sheet film F ₁ is fed one by one and supplied between the intensifying screens 8 of the photographing part through a predetermined roller path, and the film sheet F _{2 which} has been photographed is returned to the collecting magazine M ₃ by a different path. Was.

C. Problem to be Solved by the Invention In the above-mentioned conventional device, since a plurality of supply magazines and recovery magazines are loaded at the same time, there is a problem that the entire device becomes large.

Further, there has been a problem due to storing sheet films of different sizes in a common collecting magazine. In other words, since the recovery magazine is adjusted to the maximum film size, a small size film is sent to the inner part of the recovery magazine, and the rear end of this film collides with the front end of the film that is sent next. It sometimes caused transport problems.

Further, since sheet films of different sizes are accommodated in the common recovery magazine, it takes a lot of sorting work to perform the size-dependent processing in the subsequent processing steps.

The present invention has been made in view of such circumstances, is effective in downsizing of the entire apparatus, and it is possible to eliminate the occurrence of transport trouble at the time of film recovery,
Moreover, it is an object of the present invention to provide a sheet film storage magazine which is advantageous in handling films during processing after photographing.

D. Means for Solving the Problems This invention has the following constitution in order to achieve the above object.

That is, the sheet film storage magazine of the X-ray speed photographing apparatus of the present invention comprises a supply table for stacking unphotographed sheet films, a collecting section for accumulating and storing photographed sheet films below the supply table, and a non-photographed image. A positioning stopper that acts on the rear end of the sheet film, and a positioning stopper that acts on the front end of the photographed sheet film,
And a mechanism for moving both stoppers at the same time.

E. Operation The operation of this device is as follows.

The unphotographed sheet films laminated on the supply table are sequentially sent out one by one from the uppermost layer by appropriate means to be supplied to the photographing part, and then sent to the collecting section below the supply table and laminated.

When using sheet films of different sizes, move both stoppers at the same time to keep the front end of the unphotographed sheet film in the feed direction in the set position with respect to the exit of the magazine case, and the rear end of the photographed sheet film to the magazine. Keep in the set position relative to the case entrance.

F. Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

First, the overall configuration of the X-ray imaging apparatus will be described.

As shown in FIG. 8, the X-ray imaging apparatus includes an imaging table 2 supported by a base 1 so as to be tiltable and rotatable, and a table 4 on which a patient 3 is placed and which moves back and forth and left and right along the imaging table 2. And an X-ray irradiation device 6 attached to the tip of a cantilever arm 5 extending above the table from the imaging table 2 and the like. A mechanism for transmitting a fluoroscopic image is provided.

The X-ray speed photography apparatus 7 is loaded with the sheet film storage magazine M according to the present invention, and some examples thereof will be described below.

First Embodiment FIGS. 1 to 4 relate to a first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of the X-ray speed photography apparatus 7, FIG. 2 is a vertical side view of the sheet film storage magazine M, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. 4 is an exploded perspective view of the magazine. It is a figure.

A plurality of magazines M accommodating sheet films of different sizes are loaded into the X-ray rapid radiographing apparatus 7 so that they can be inserted and removed, and the non-photographed sheet films F ₁ sent from each magazine M are intensifying screens 8 of the photographing part. While being supplied through a predetermined roller path, the photographed sheet film F ₂ is collected in the original magazine M through another roller path.

The case of the sheet film storage magazine M is composed of a main body case 9 and a cover case 10 fitted and connected to the main body case 9 from above, and a film entrance / exit 11 is opened at one end of the case.

A pair of left and right vertical walls 12 are erected on the bottom surface of the body case 9,
A supply table 13 on which the unphotographed sheet films F ₁ are stacked is supported only between vertical movements between the vertical walls 12, and the supply table 13 is urged upward by coil springs 14 on the front, rear, left and right. . Also, on the inner back side of the main body case 9,
A stopper 16 is provided which projects upward from an opening 15 formed in the supply table 13 and positions and supports the rear end of the sheet film F ₁ . At the upper end of the stopper 16, a protrusion 17 for locking the rear end of the sheet film F ₁ from above and a slit 18 for allowing only _one uppermost sheet film F ₁ to move rearward are formed. . Also, this stopper 16
Is fixed to the left and right vertical walls 12 by a screw 29, and by loosening the screw 29, it can be adjusted back and forth along a long hole 19 horizontally provided in the vertical wall 12.
At the front part of the vertical wall 12, there are provided a claw member 20 that engages with the front end of the sheet film F ₁ from above and a guide roller 21 for the photographed sheet film F ₂ . Further, the space below the supply table 13 serves as a collecting portion 22 for the photographed sheet film F ₂ , and the lower portion of the stopper 16 serves as a stopper for positioning the front end of the collected sheet film F ₂ .

On the other hand, inside the cover case 10, a pair of front and rear feed rollers 23, 24 acting on the upper surface of the unphotographed sheet film F ₁ are provided.
Is provided. The delivery rollers 23 and 24 are linked to each other by a chain 25, and a passive rubber roller 27 is attached to a support shaft 26 of the delivery roller 23 on the front side. When the magazine M is loaded into the X-ray radiography apparatus 7,
The rubber roller 27 comes into contact with the drive roller 28 provided in the apparatus, and the drive roller 28 causes the both feed rollers 2
3 and 25 are driven to rotate.

Next, the operation of the first embodiment will be described.

In feeding the unexposed sheet film F _1, firstly, feed rollers 23 and 24 are (clockwise in FIG. 2) by reversing a predetermined amount, the sheet film F ₁ of the top layer is fed into the rear of the slit 18 only one And its front end is removed from the claw member 20. The front end of the sheet film F ₁ removed from the claw member 20 is restored upward from the claw member 20 by an elastic restoring action, and in this state, the feed rollers 23 and 24 are positively rotated in a coupled manner, and the uppermost sheet film F ₁ Only send out from the film entrance / exit 11.

The photographed sheet film F ₂ is fed into the film entrance / exit 11, and is stacked and stored in the collecting unit 22 via the guide roller 21. At this time, the sheet film F ₂
Enter the inner part, are positioned under the stopper 16 and are stacked orderly.

This magazine M is also used for films of different sizes, and when used to store a small size sheet film, loosen the screw 29 to move the stopper 16 forward so that the front end of the unphotographed sheet film F ₁ is Correctly engage the claw member 20. Then, the front end position of the photographed sheet film F _{2 in} the collecting section 22 is simultaneously adjusted by the stopper adjustment, and the relational position between the sheet film F ₁ and the guide roller 21 becomes the same as in the case of the large size film.

Second Embodiment Next, a second embodiment will be described with reference to FIGS. 5 and 6.

FIG. 5 is a vertical sectional view of this embodiment, and FIG. 6 is a schematic plan view thereof.

In these drawings, the same reference numerals as those shown in FIGS. 2 to 4 according to the first embodiment denote the same parts and portions as those shown in the present embodiment. Further, unless otherwise specified, the present embodiment and the first embodiment have the same configuration in terms of arrangement, connection relationship, etc.

The structure of this embodiment different from that of the first embodiment is as follows.

That is, in this embodiment, the exit of the unphotographed sheet film F ₁
11a Whereas is opened in case the front end, an inlet 11b of a Captured sheet film F ₂ is opened into the case rear. Also, along with this, and is configured to the rear end of unexposed sheet film F ₁ and the stopper 16a for supporting, as a separate member separated into front and rear stopper 16b with each other to support the front end of recorded sheet film F _2.

Then, in order to adjust the positions of both stoppers 16a and 16b at the same time, a balance arm 31 is rotatably adjustable and fixedly attached to a stay 30 installed over the left and right vertical walls 12, and both ends of the balance arm 31 and both stoppers 16a. , 16b are connected to each other by a link 32, and the stoppers 16a, 16b are configured to move back and forth by the same amount in opposite directions with the rotation of the balance arm 31. The stopper 16a of the unphotographed sheet film F ₁ is guided by the opening 15 of the supply table 13, and the stopper 16b of the photographed sheet film F ₂ is guided by the left and right vertical walls 12.

Also in this embodiment, both stoppers 16a and 16b are simultaneously
By adjusting the amount by the same amount, in the case of sheet films of different sizes, the front end position of the non-photographed sheet film F ₁ and the rear end position of the photographed sheet film F ₂ are correctly set with respect to the claw member 20 and the guide roller 21. Can be set.

As a means for simultaneously moving both stoppers 16a, 16b by the same amount in opposite directions, as shown in FIG. 7, both stoppers 16a, 16b are provided on the forward and return paths of the chain 35 wound around a pair of sprockets 33, 34. It is also possible to concatenate.

G. Effect of the Invention According to this invention, the following effects are exhibited.

(1) Compared with the conventional device, which is loaded with multiple supply magazines and shared recovery magazines when filling multiple sizes of sheet film, because uncaptured sheet film and captured sheet film are stored in one magazine case. do it,
The space for filling the magazine becomes smaller, and the entire X-ray radiography apparatus can be downsized.

(2) Since only one kind of sheet film is stored in one magazine case, there is a transport trouble due to the collision between film edges, which is seen in the conventional device that collects sheet films of various sizes in the common collecting magazine. Disappear.

(3) Since the sheet film is stored in a separate case for each size, it is not necessary to select the film during the subsequent processing, which is advantageous for automatic development processing.

(4) The magazine case can be used for each size of film by adjusting the stopper for the trailing edge positioning of the unphotographed sheet film and the leading edge positioning stopper for the photographed sheet film simultaneously and in the same amount However, it is advantageous in reducing manufacturing costs.

(5) Further, by simultaneously adjusting both stoppers, proper setting of the unphotographed sheet film and the photographed sheet film can be performed easily and quickly.

[Brief description of drawings]

1 to 4 relate to the first embodiment of the present invention, FIG. 1 is a schematic configuration diagram of an X-ray speed photography apparatus, FIG. 2 is a vertical sectional side view of a sheet film storage magazine, and FIG. A sectional view taken along line III-III in FIG. 2 and FIG. 4 are exploded perspective views of the magazine. 5 and 6 relate to the second embodiment, FIG. 5 is a vertical sectional side view of the magazine, FIG. 6 is a schematic plan view thereof, and FIG. 7 is a main part showing a modified example of the second embodiment. It is a schematic plan view. FIG. 8 is an overall configuration diagram of the X-ray imaging apparatus according to the embodiment. Further, FIG. 9 is a schematic configuration diagram of a conventional X-ray speed photography apparatus. 13… Supply table 16,16a, 16b… Stopper 22… Collection section F ₁ … Unphotographed sheet film F ₂ … Photographed sheet film

Claims (1)

[Scope of utility model registration request] 1. A supply table for stacking unphotographed sheet films, a collecting section for accommodating photographed sheet films under the supply table, and a positioning stopper for acting the unphotographed sheet films at the rear end. A sheet film storage magazine for an X-ray radiography apparatus having a positioning stopper that acts on the front end of a photographed sheet film and a mechanism that simultaneously moves the stoppers.