JPS62229126A - X-ray photographing device - Google Patents

Abstract

PURPOSE:To always hold a film by an optimum pressure irrespective of the number of sheets of a contained film, by applying deviation force to a guide plate by a deviation force applying means, so that the contained film is pressed down, when the guide plate is turned to a photographed film containing box side. CONSTITUTION:A guide plate 7 is moved to a roller 6a side and guided so that a film which is fed out of the roller 6a goes into a photographed film containing box 2. After it is contained, an operating lever 16 is turned by a prescribed turning angle counterclockwise, and an interlocking lever 14 is deviated counterclockwise by a tension spring 15, and moved in the direction in the photographed film containing box 2. The guide plate 7 interlocked with the interlocking lever 14 is turned until it contacts the surface of the photographed film and detained. When the guide plate 7 is returned into an opening part of the photographed film containing box 2, it puts the contained film in order and holds it, but it always contacts the film surface and holds it irrespective of an acculated thickness of its film.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an X-ray imaging apparatus that performs X-ray imaging using a sheet-like film.

(Prior Art) One of the diagnostic X-ray imaging devices is a cassette-less X-ray fluoroscopic imaging device.

In this device, multiple sheets of unshot film are stored in a film storage box, and when shooting, the films in the film storage box are taken out one by one using a suction cup and held between film holding plates. The machine is placed on standby in a standby position outside the X-ray irradiation field. Then, using a fluoroscopic X-ray television device,
For example, if you send an imaging command when the desired state is observed while observing the observation target area of a subject who has been administered a contrast medium,
''-2 The film holding plate is sent to the imaging position within the X-ray irradiation field, and thereby X-ray imaging is performed.

Thereafter, the clamping plate is returned to the standby position, and the film is taken out from within the clamping plate and sent into the photographed film storage box where the photographed film is stored. By repeating these operations, an X-ray photograph is obtained and used for diagnosis.

By the way, conventionally in this type of device, when sending the exposed film from the transport roller to the exposed film storage box, a guide plate is provided to guide the film into the exposed film storage box, and at the same time as the film is stored, the guide plate is moved. He returned to the film storage box and began tidying up the stored film.

Specifically, in the conventional device, as shown in FIG. 6, a film storage box 1 for storing unshot film is set in a casing A of a spot shot photographing device. A photographed film storage box 2 for storing photographed films is placed on the lower side. A suction cup 3 is provided near the film storage box 1 to take out the films in the film storage box 1 one by one. 4 is film, 6
．． 6-. 6'' has a pair of rollers, of which the rollers 6 are used to hold the film 4 taken out by the suction cup.
The roller 6' is a roller that winds the film 4 between the rollers and sends it out to the film holding plate 5 waiting at a standby position, and the roller 6' is further provided on the opening side of the film holding plate 5 to carry the film 4 sent out by the roller 6. The roller 6'' also feeds the film taken out from the film holding plate 5 to the photographed film storage box 2 side.The roller 6'' also feeds the film 4 fed by the roller 6. It has a function of storing the film in the film holding plate 5, taking out the film in the film holding plate 5 which has been returned from the shooting position to the standby position B after shooting, and feeding it to the roller 6''. The opening 1b is a sliding lid that opens and closes the opening 1a of the film storage box 1. Lid 1b
After the film storage box 1 is set in the housing A, it can be opened and closed from the outside. Also, 1c is the lid 1b
This is a roller attached to the inside of the open end.

Further, 2a is the opening of the photographed film storage box 2, and 2b is the opening of the photographed film storage box 2.
is a sliding lid that opens and closes the opening 2a of the photographed film storage box 2. The lid 2b is similar to the film storage box 1 for storing unshot film, and the film storage box 2 for used film.
After it is inserted into the housing A, it can be opened and closed from the outside.

Further, when the film holding plate 5 is in the standby position, the suction cup 3 is attached to the film storage box 1 in which the film is set.
A sheet of film is taken out by moving between the opening 1a and the roller 6.

The film in the film storage box 1 is pressed by a roller IC provided at the end of the lid 1b of the film storage box 1 to prevent the film inside the film storage box 1 from moving when the entire device is raised or rolled. Further, an elastic guide plate 7 is provided which rotates around a point C and rotates between the roller 6- and the opening 5 of the photographed film storage box 2, using this point as a fulcrum. When the film is taken out after passing through the rollers 6'' and 6-, the guide plate 7 is moved toward the roller 6- to guide the film sent out from the roller 6' into the photographed film storage box 2. After the film is stored in the photographed film storage box 2, the guide plate 7 is returned to the opening of the photographed film storage box 2 to organize and hold the stored film. It is.

This prevents the film in the photographed film storage box 2 from moving when the entire photographing apparatus is raised, folded or rolled.

However, when looking at the photographed film storage box 2, the function of the guide plate 7 that suppresses the movement of the film in the photographic film storage box 2 when the entire photographing device is raised or rolled is as follows. There were some problems.

That is, the guide plate 7 is returned to the photographed film storage box 2 and the film is pushed inside, but the height in this case is set near the maximum number of films that can be stored due to the configuration of the operating mechanism of the guide plate 7. Therefore, when the number of sheets stored is small, the guide plate 7 cannot hold down the film, and depending on the posture of the photographing device, the film may fall down inside the photographed film storage box 2, causing the film to become uneven and wavy. And because of this, even if new film was sent to me, it was sometimes impossible to store it.

Further, the film that cannot be stored may become jammed in the middle of the conveyance path, which may cause a malfunction of the apparatus.

Also, if the return height of the guide plate 7 in the photographed film storage box 2 is set near the bottom of the photographed film storage box 2, then when the number of stored films increases, the guide plate 7 will indicate that the photographed film has been taken. When you return to film storage box 2,
In addition to hitting the stored film surface, there was a drawback that the rated operating angle or height could not be obtained, resulting in an overload on the guide plate drive unit that operated the guide plate 7. .

(Problem to be Solved by the Invention) In this way, in the past, the elasticity of rotating between the roller 6- and the opening of the photographed film storage box 2 with one point C as the fulcrum is known. A guide plate 7 is provided so that when the film is taken out from the roller 6', the guide plate 7
moves it to the roller 6' side and guides the film sent out from the roller 6' so that it enters the photographed film storage box 2. After the film is stored in the photographed film storage box 2, the above-mentioned steps are performed. The guide plate 7 is returned to the opening of the photographed film storage box 2 to organize and hold the films stored in the photographed film storage box 2.
This prevents the film in the photographed film storage box 2 from moving when the entire photographing apparatus is raised, folded or rolled.

However, the guide plate 7 is not connected to the photographed film storage box 2.
When returning the film to the inside and pushing it into the interior, the return position must be a fixed position due to the structure of the operating mechanism of the guide plate 7. Therefore, depending on the number of films stored, the guide plate 7 may not be able to push the film inside. The presser foot is not working properly,
The pressing pressure becomes too strong. If the hold does not work, the film may fall down in the photographic film storage box 2 due to the attitude of the photographing device, causing the film to become uneven and wavy. If the film that cannot be stored becomes stuck in the transport path and causes a malfunction of the device, or if the press is too strong, the guide plate 7 may return to the photographed film storage box 2. When the stored film surface is hit hard and the film is scratched, or the rated operating angle or height cannot be obtained, the guide plate drive unit that drives the guide plate 7 may be overloaded. There were drawbacks such as high energy consumption and the risk of malfunction.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cassetteless sheet film X-ray photographing apparatus that can always press the films with optimum pressure regardless of the number of films stored in the photographed film storage box.

(Means for solving problems) In order to achieve the above object, the present invention is configured as follows.

That is, the film is taken out one by one from a film storage box containing a plurality of sheets of unphotographed film, and sent to the film holding means at the standby position to hold the film.
In an X-ray imaging apparatus, the film holding means is moved to a shooting position to perform shooting, and the shot film is taken out from the film holding means returned to a standby position and sent and stored in a shot film storage box. A guide plate is rotatably provided between the above-mentioned standby position side and the inside of the film storage opening of the photographed film storage box, and this guide plate is rotated to the above-mentioned standby position side when taking out the photographed film. The photographed film taken out from the film holding means which has returned to the standby position is guided to the photographed film storage box, and thereafter, the photographed film is guided by a set angle so that it comes inside the film storage opening of the photographed film storage box. a guide plate operating means for rotating the guide plate;
Another feature of the present invention is that it includes a biasing force applying means for applying a biasing force to the guide plate so as to suppress the stored film when the guide plate is rotated toward the photographed film storage box.

(Function) In such a configuration, when the photographed film is taken out from the film holding means, the guide plate rotates toward the standby position, and when the photographed film is taken out from the film holding means returned to the standby position, the guide plate is rotated. It is guided to the photographed film storage box and then rotated so as to come inside the film storage opening of the photographed film storage box. This rotation operation angle is a preset angle, but in this device, when the guide plate is rotated toward the photographed film storage box, a biasing force is applied to the guide plate so as to press the stored film. Biasing force is given. Therefore, when the guide plate is rotated toward the photographed film storage box, it is always biased to contact the film and press the film, regardless of the thickness of the stack of stored films. Therefore, even if the guide plate is retracted and does not touch the film surface at the set rotation angle position of the guide plate,
Due to this deviation, the film is always in contact with the film surface, and it is possible to prevent the film from being skewed or undulating due to the posture of the apparatus. In addition, since the guide plate does not have to touch the film at the above set rotation angle position of the guide plate, the guide plate position at the set rotation angle position is set at a position sufficiently higher than the bottom surface of the photographed film storage box. Therefore, it is possible to solve the problem of the guide plate holding the film too tightly as the number of stored films increases, and it is possible to always hold the film in the optimum condition regardless of the number of stored films. become.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 is a configuration diagram for explaining the overall configuration of this device, which is basically the same as the conventional example shown in FIG. 6. That is, as shown in the figure, a film storage box 1 for storing unshot film is set in a housing A of a spot shot photographing device, and this film storage box 1
It is configured such that a photographed film storage box 2 for storing photographed films can be set on the lower side of the camera. and,
A suction cup 3 is provided near the film storage box 1 to take out the films in the film storage box 1 one by one. 4 is a film, 6a is a pair of rollers, and roller 6
a is a film holding plate 5 waiting at a standby position with the film 4 taken out by the suction cup being wound between rollers;
At the same time, the film taken out from the film holding plate 5 is sent to the photographed film storage box 2 side. 1a is an opening of the film storage box 1, and 1b is a sliding lid that opens and closes the opening 1a of the film storage box 1. The lid 1b can be opened and closed from the outside after the film storage box 1 is set in the housing A. Also, I
C is a roller attached to the inside of the open end of the lid 1b.

Further, 2a is the opening of the photographed film storage box 2, and 2b is the opening of the photographed film storage box 2.
is a sliding lid that opens and closes the opening 2a of the photographed film storage box 2. The lid 2b is similar to the film storage box 1 for storing unshot film, and the film storage box 2 for used film.
After it is set in the housing A, it can be opened and closed from the outside.

Further, the suction cup 3 has the film holding plate 5 in the standby position, and moves between the roller 6a and the opening 1a of the film storage box 1 in which a film is set to take out one film.

The film in the film storage box 1 is pressed by a roller IC provided at the end of the lid 1b of the film storage box 1 to prevent the film inside the film storage box 1 from moving when the entire device is raised or rolled. Reference numeral 7 designates an elastic guide plate that rotates around a point C as a fulcrum and rotates between the roller 6a and the opening of the photographed film storage box 2.

This guide plate 7 is rotated by a drive operation mechanism to the standby position side when taking out a photographed film from the film clamping means, and when the photographed film is taken out from the film clamping means which has returned to the standby position, the photographed film is transferred to the photographed film. The film is guided to the storage box and then rotated so that it is inside the film storage opening of the film storage box, and this rotation angle is set at a preset angle. When the guide plate is rotated toward the exposed film storage box, a biasing force is applied to press the stored film, thereby biasing the guide plate and moving the guide plate toward the exposed film storage box. A guide plate operating mechanism 8 is provided which, when rotated, is always biased so as to be in contact with the film and can press the film, regardless of the laminated thickness of the storage film.

This guide plate operating mechanism 8 has the following configuration.

That is, FIG. 2 is a side view showing the main part configuration, and
FIG. 3 is a front view thereof, and FIGS. 4 and 5 are diagrams illustrating its operation. In the figure, reference numeral 11 indicates a pair of side plates, and one end of the guide plate 7 is connected to the opening 2 of the photographed film storage box 2.
It is fixed to a rotatable shaft 12 provided near a. Further, this shaft 12 is inserted through the pair of side plates 11 and is rotatably held. 2 is the photographed film storage box, 6a is the roller, and 13 is a motor (solenoid) attached to the side plate 11. An interlocking lever 14 is attached to the shaft 12 on the outwardly protruding portion of the side plate 11, with the interlocking lever 14 being fixed near one end thereof. The interlocking lever 14 is arranged with its free end extending toward the free end of the guide plate 7 in a slightly curved manner toward the unshot film storage box 1.
A pin 14a extending in the direction of the side plate 11 is provided in a protruding manner at the intermediate portion of the side plate 4. Further, a pin 14b is provided on the free end side of the interlocking lever 14 in a direction opposite to the protruding direction of the pin 14a, and this pin 14b is used to move the interlocking lever 14 in the direction of the photographed film storage box 2. In order to pull the film, a tension spring 15 is hung between it and a pin 11a protruding from the side plate 11 near the photographed film storage box 2 side.

Further, a rotating shaft 13a of the motor 13 mounted on the side plate 11 is arranged so as to protrude near the shaft 12, and one end of the operating lever 16 is attached to the rotating shaft 13a of the motor 13. In addition, there is a relatively large window 1 near the free end side of the operating lever 16.
6a is provided, and the pin 14a is provided in this window 16a.
is engaged.

In this configuration, when the film is taken out from the roller 6a, the guide plate 7 is moved toward the roller 6a as shown in FIG. guide you to enter. This is done as follows. First, when the film begins to be fed out from the roller 6a, the motor 1
3 is driven, and the operating lever 16 is rotated clockwise by a predetermined rotation angle. Then, the interlock lever 4, in which the pin 14a is engaged with the window 16a of the operation lever 16, is rotated clockwise to a predetermined angle by this engagement and is pulled up.

Since the guide plate 7 is fixed to the shaft 12 of the interlocking lever 14, the guide plate 7 is raised to a predetermined angular position and guides the film 4 sent out from the roller 6a into the photographed film storage box 2. do.

Immediately after the film is stored in the photographed film storage box 2, the motor 13 is reversely driven to rotate the control lever 16 counterclockwise by a predetermined rotation angle. Since the interlocking lever 14 is biased counterclockwise by the tension spring 15, the rotation of the operating lever 16 in the counterclockwise direction causes it to move toward the inside of the photographed film storage box 2. Since the counterclockwise rotation of the operating lever 16 is a constant angle, the counterclockwise rotation by the operating lever 16 is constant, but the pin 14a can freely move within the window 16a of the operating lever 16. Therefore, by rotating the operating lever 16 counterclockwise, the guide plate 7 is set near the entrance position of the photographed film storage box 2, and the size of the window 14a is adjusted so that the guide plate 7 is located close to the entrance position of the photographed film storage box 2. If the size of the guide plate 7 is set appropriately such that it can be moved close to the bottom of the film, the guide plate 7, which is connected to the interlocking lever 14 biased by the tension spring 15, will rotate until it comes into contact with the surface of the photographed film. It will move and stop (see Figure 5). That is, when the guide plate 7 is returned to the opening of the photographed film storage box 2, it organizes and holds down the stored films, but it always comes into contact with the film surface regardless of the stacked thickness of the films. You will be able to hold this down. Moreover, the interlocking lever 14 has a degree of freedom within the range of the window 16a due to the window 16a, and the biasing force of the tension spring 15 can be applied to the guide plate 7 within this range, so that the film that has already been photographed can be applied regardless of the accumulated thickness of the film. The film can be held down with appropriate pressure within the storage box 2.

This prevents the film in the photographed film storage box 2 from moving when the entire photographing apparatus is raised, folded or rolled.

Therefore, when you return the guide plate to the photographed film storage box and tap (push) the film inside, as in the conventional case,
Since the return position is a fixed position, there is no need to worry about the guide plate not being able to hold down the film or the pressing pressure becoming too strong depending on the number of films stored. As a result, the film may fall down in the photographed film storage box 2 when the film is held upside down or tilted due to the inability to hold the press down properly, and the resulting film may become uneven, resulting in waving, and this may result in new shooting. Even if finished film is sent, it may not be possible to store it, and the film that cannot be stored may become jammed in the transport path and cause equipment failure.
Also, if the presser foot is too strong, when the guide plate is returned to the film storage box after shooting, the surface of the stored film may be hit and the film may be damaged, or the rated operating angle or height may not be obtained. This completely solves the problem of overloading the guide plate drive unit that drives and operates the guide plate, leading to breakdowns, regardless of the number of films stored in the film storage box. You will be able to press the film with the optimum pressure at all times.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and can be practiced with appropriate modifications within the scope of not changing the gist thereof.

〔Effect of the invention〕

As described in detail above, according to the present invention, the mechanism for guiding photographed films to the photographed film storage box and holding down these films after storage can be used regardless of the number of films stored in the photographed film storage box. It is possible to provide a cassette-less sheet film X-ray imaging device that can always press the film with optimum pressure.

[Brief explanation of drawings]

Regarding one embodiment of the present invention, FIG. 1 is a block diagram for explaining the overall configuration of an apparatus according to the present invention, and FIGS.
The figure shows a side view A showing the configuration of the main parts of the present invention...A casing of a spot shot photographing device, 1...A film storage box for storing unshot film, 1a...An opening of the film storage box 1, 1b ...Lid of film storage box 1, 2...Shot film storage box, 2a...Opening of shot film storage box 2, 2b91, Shot film storage box 2
Lid, 3... Suction cup, 4... Film, 5...
・Film holding plate, 6a...pair of rollers, 7...
Guide plate, 8... Guide plate operation mechanism, 11... Pair of side plates, 12... Shaft, 13... Motor (solenoid), 14... Interlocking lever, 14a. 14b...pin, 15...tension spring, 13a...
- Rotating shaft, 16...operation lever, 16a...window.

Claims (1)

[Claims] The film is taken out one by one from a film storage box containing a plurality of sheets of unphotographed film, and sent to the film holding means at a standby position to hold the film, and when shooting, the film holding means is moved to the shooting position. In an X-ray imaging apparatus, in which an image is taken and the film is taken out from the film holding means which has returned to a standby position and sent to and stored in an imaged film storage box, the film on the standby position side and in the imaged film storage box is removed. A guide plate is provided so as to be rotatable between the inside of the storage opening and the photographed film taken out by the film holding means, which is rotated to the standby position when taking out the photographed film and returned to the standby position. a guide plate operating means for guiding the finished film to the exposed film storage box and then rotating it by a set angle so that it is inside the film storage opening of the exposed film storage box; An X-ray imaging device comprising biasing force applying means for applying a biasing force to a guide plate so as to press the stored film when the guide plate is rotated toward the finished film storage box.