JPH09258351A - X-ray radiographing method and clamping device and x-ray radiographing device used for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the constitution of an X-ray radiographing device simple and to constitute it so that it is moved in a fixed direction in a state where a prescribed medium is held and the holding operation and the releasing operation of the medium can be executed at a desired position in the moving direction thereof. SOLUTION: By the holding members 34 and 35 constituted so as to be like scissors and pressed by a spring 37 in a direction that a film 1a is held, a cam shaft 32 being an oval cam 32a which is extended in a direction almost orthogonally crossed to a moving surface between the holding state and the releasing state by the holding members 34 and 35 and whose contour of the cross section is provided with a long diameter and a short diameter is moved. In such a case, the film 1a can be held and released at the optional position in the extending direction of the cam shaft 32. By constituting a ball screw of a seat 38 integrally formed with the holding members 34 and 35 and a shaft 31 extended in the extending direction of the cam shaft 32, the whole of a holding part 33 can be moved in a shaft direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray image capturing method, a gripping device used in this method, and an X-ray image capturing device, and more particularly to a method and device for gripping an X-ray film and moving it. Is.

[0002]

2. Description of the Related Art Conventionally, especially in the medical field, a plurality of X-ray films are loaded from a magazine containing a plurality of X-ray films into a photographing unit one by one from above, and X-rays of a subject are taken out of the photographing unit.
2. Description of the Related Art An X-ray image capturing apparatus that captures a radiographic image and transports the captured film downward or upward from a capturing unit is well known (Japanese Patent Publication Nos. 5-67215 and 6-68608).
No.). Here, the reason why the film is carried into the photographing section from above is to facilitate the handling of the film by utilizing gravity.

By the way, such an X-ray image may be taken not only for an adult but also for a child. In an X-ray image of a child, the size of the entire film is larger than that of an adult male. The image area of the observation target is small. That is, in the X-ray image of the child, the so-called blank region other than the chest image required as image information is large in the image photographed on a large film, and it is rather difficult to observe the necessary image portion.

Therefore, it is generally practiced to prepare films of a plurality of sizes according to the physique of the object to be photographed in advance in the X-ray image photographing apparatus, select a film of a desired size as necessary, and photograph it. This is performed, and an image of an appropriate size is obtained according to the subject (shooting target).

By the way, in the X-ray image radiographing apparatus, the upper end of the film is once grasped by a grasping device after being carried into the radiographing section, and the film is passed to a holding means on the radiographing section side and held at a fixed position, and the film is handed over. The gripping device is configured to be retracted from the film.

In an X-ray image radiographing apparatus having a structure in which a plurality of types of films of different sizes are loaded into the radiographing unit from above, the film is loaded into the radiographing unit so that the upper end of the film is always at a substantially constant position. Therefore, it is rational to grip the upper end portion of the film with a gripping device, and such a configuration is actually adopted in the conventional photographing device.

[0007]

However, in an X-ray image photographing apparatus, the film is photographed from the lower side of the photographing section for the reason that the film is photographed up to the upper end portion and the photographing area is expanded as much as possible. In some cases, an imaging device having a structure for allowing the film to enter is preferable, and in the case of an X-ray image imaging device having a structure for allowing the film to enter from the lower side of the imaging unit as described above, the above gripping device grips the vicinity of the upper end of the film. Can not do it.

That is, when the film is loaded into the photographing section from below, there are a plurality of film sizes and the position of the upper end of the film differs depending on the film size.
The upper edge of the film cannot be uniformly held.

The present invention has been made in view of the above circumstances, and after a plurality of types of X-ray films having different sizes are carried into the photographing unit, the X-ray film is gripped and the upper end of the X-ray film is placed at a fixed position of the photographing unit. X that made it possible to combine parts
It is an object of the present invention to provide a line image capturing method, a gripping device used in this method, and an X-ray image capturing device.

[0010]

According to the X-ray imaging method of the present invention, the X-ray image is recorded from one or more supply magazines containing a plurality of sheet-like unexposed X-ray films having different lengths in the transport direction. Take out the line films one by one,
The X-ray film is carried into the imaging unit, the X-ray film is held in the imaging unit, and the X-ray of the subject is placed on the X-ray film.
In the X-ray image photographing method, a line image is photographed, the X-ray film is taken out from the photographing unit after the photographing, and the taken-out photographed X-ray film is stored in a receive magazine. The X-ray film is loaded into the imaging unit from below, the X-ray film loaded in the imaging unit is gripped, and the upper end of the X-ray film is aligned with a predetermined position of the imaging unit. It is characterized in that the X-ray film is moved upward depending on its length.

The gripping device of the present invention is a device used in the X-ray image capturing method of the present invention, in which the two gripping members are axially supported in a scissor shape so that the end portions of the two adjacent members are close to or contact each other. A gripping portion that is movable between a gripping position for gripping the X-ray film by contact and a release position for releasing the X-ray film, and a moving plane between the gripping position and the release position. A moving means for moving the gripper in a direction substantially orthogonal to, and a cross-section of the moving part that is formed as a cam for moving the gripper between a gripping position and a releasing position. And a cam shaft extending in the orthogonal direction.

In the X-ray image photographing apparatus of the present invention, one X-ray film is supplied from each of one or more supply magazines containing a plurality of sheet-shaped unexposed X-ray films having different lengths in the transport direction. A sheet-fed means for taking out, a carrying-in means for carrying in the X-ray film to an imaging section, an imaging section for holding the X-ray film in the imaging section and imaging an X-ray image of a subject on the X-ray film, In the X-ray image radiographing apparatus, which comprises a carrying-out means for carrying out the X-ray film from the imaging section after the imaging, and a housing means for housing the taken-out photographed X-ray film in a receive magazine, The carrying-in means carries in the X-ray film from the lower side with respect to the imaging unit, and in the imaging unit,
A gripping device is provided for gripping the loaded X-ray film and moving the X-ray film upward in accordance with the length of the X-ray film so that the upper end of the X-ray film is aligned with a predetermined position of the imaging unit. It is characterized by that.

Here, as the gripping device, the two gripping members are rotatably supported in a scissor shape, and the ends of the two adjacent members come close to or abut each other, and are separated from a gripping position for gripping the X-ray film. A gripping part that is movable between a release position for releasing the X-ray film, a moving means for moving the gripping part in a direction substantially orthogonal to a movement plane between the gripping position and the release position, and It is preferable to use a cam shaft whose cross section is formed as a cam that moves the grip portion between the grip position and the release position over the movable range and that is formed of the cam shaft extending in the orthogonal direction. Is.

[0014]

According to the X-ray image radiographing method and the X-ray image radiographing apparatus of the present invention, the X-ray film is carried into the radiographing unit from below, and the X-ray film carried into the radiographing unit is gripped. Since the X-ray film is moved upward according to the length of the X-ray film so that the upper end of the X-ray film is aligned with the predetermined position of the imaging unit, it is possible to use a film having a different length in the transport direction. Also, the film can always be positioned in the photographing unit with the upper end of the film as a reference.

Further, the gripping device of the present invention used in this photographing method has a very simple structure, but the cam shaft holds the gripping part between the gripping position and the releasing position in the entire range in which the gripping part is movable. Since it can be moved between the two, and thereby the gripping and releasing of the gripping portion can be freely operated at any position in the moving direction of the X-ray film,
Even when the size of the film is different, the film can be gripped and released by moving the film by an arbitrary length (height) according to the size.

Furthermore, the gripping device in the X-ray imaging apparatus of the present invention holds the X-ray film by the two gripping members being axially supported like scissors and the ends of the adjoining members approaching or contacting each other. A gripping part that is movable between a gripping position and a releasing position for releasing the X-ray film, and the gripping part in a direction substantially orthogonal to a moving plane between the gripping position and the releasing position. And a cam shaft extending in the orthogonal direction, the cross section being formed as a cam for moving the grip portion between the grip position and the release position over the movable range. With the configuration consisting of, the cam shaft can move the gripping part between the gripping position and the releasing position with a very simple structure in the entire range in which the gripping part is movable. Yes this Since the gripping and releasing of the gripping part can be freely operated at an arbitrary position in the moving direction of the X-ray film, even if the film size is different, the film can be adjusted to an arbitrary length (height) depending on the size. ), The film can be gripped and released.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of an X-ray image radiographing apparatus using the gripping device of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side sectional view showing an embodiment of an X-ray image radiographing apparatus, and FIG. 2 is a front view showing a detailed structure of a gripping device of the present invention used in the X-ray image radiographing apparatus shown in FIG. FIG. 3 and FIG. 3 are plan views showing details of the grip portion of the grip device shown in FIG. The illustrated X-ray image capturing apparatus is for capturing an X-ray transmission image mainly of a human body chest 100 as an object 100 on an X-ray film, and a plurality of types of unexposed X-ray film 1a having different lengths from each other. , Two supply magazines 1b each containing a large number of 1b,
12 and a film selection instruction from a film selection means (not shown) from these supply magazines 11 and 12,
A carrying-in means 20 for taking out one film 1a or 1b from either one of the two supply magazines 11 and 12 and carrying it into the photographing section 40 from below, an X-ray film 1a carried into the photographing section 40, etc. A gripping device 30 for gripping and ascending to the upper part inside the image capturing unit 40, and an upper end of the X-ray film 1a or the like gripped by the gripping device 30 and ascending upwards so as to abut at a predetermined position. Abutting member 43 upward
Is equipped with a fixed front plate 41 and a movable rear plate.
An X-ray film 1a or the like is sandwiched between the X-ray film 1a and the like, and the X-ray film 1a and the like are held, and an X-ray transmission image is taken in this held state.
And an unloading means 50 for unloading the X-ray film 1a etc. after the X-ray transmission image is taken out from the imaging section 40, and the X-ray film drawn out from the imaging section 40.
An ID information recording device 60, which is provided on a conveyance path such as 1a, records ID information such as photographing date / time, photographing region (subject), patient name, etc. at the leading end in the conveying direction of the X-ray film 1a and the like. A receive magazine 70 for accommodating an X-ray film 1a and the like in which a line-transparent image and ID information are recorded is provided inside.

More specifically, supply magazines 11 and 12
Is a main body 1 for accommodating films 1a and 1b, respectively.
1a and 12a and lids 11b and 12b, which are rotatably supported by the main bodies 11a and 12a and have a light-shielding inside when closed, and are to be taken out of the device and carried. , 12b are closed, and when mounted inside, they are opened.

The carrying-in means 20 enters the inside of the main bodies 11a, 12a from the openings of the supply magazines 11, 12 opened inside the apparatus, and is provided with the film 1a and the like laminated respectively inside the main bodies 11a, 12a. One film 1a of the uppermost layer is adsorbed and the film is taken from the opening of the supply magazine 11 or the like.
1a and the like, and sheet-fed means 21 and 22 for conveying the film 1a and the like to the carry-in roller 23 arranged below the photographing unit 40 so as to face each other, and the conveyed film 1a and the like are sandwiched,
It comprises two transport rollers 23 which are rotationally driven to transport the film 1a and the like upward.

The two sheet-feeding means 21 and 22 are for adsorbing a long-sized film 1a on one side and a short-sized film 1b on the other side. Either one is driven according to the film selection instruction input to the selection means. However, the present invention is not necessarily limited to the configuration in which the individual sheet means 21 and 22 are separately provided for each length of the film, and one sheet means may supply the supply magazine on the designated side in accordance with the instruction for selecting the film. Film 1a of any length moved to 11 or 12 opening
Alternatively, it is of course possible to adopt a configuration in which even 1b can be adsorbed.

When the transport roller 23 holds the leading end of the film 1a or 1b transported by the sheet feeding means 21 or 22 in the transport direction, the transport roller 23 is driven to rotate to transport the film 1a or the like upward. The trailing end of this roller is this roller
After passing through the roller 23, the roller 23 continues to rotate, thereby applying vibration so that the rear end of the film 1a or the like protrudes from below, and the posture of the film 1a or the like is moved to the lower end (rear end). The axial direction of the roller 23 can be corrected so as to be parallel.

The gripping devices 30 are respectively provided on both sides of the film 1a and the like, and scissors-shaped gripping portions 33 for gripping the film 1a and the like carried into the photographing section 40 by the conveying rollers 23 on both sides thereof, and the film 1a. And the like, the lifting mechanism that moves the film 1a and the like together with the gripping portion 33 that grips the film 1 in the height direction of the imaging unit 40, operation switching means that switches between the gripping operation and the releasing operation by the gripping portion 33, the X-ray film 1a, and the like. It comprises a positioning control means (not shown) for detecting the contact between the upper end and the contact member 43 and stopping the lifting operation by the lifting mechanism.

The gripping portion 33, as shown in FIGS.
Two gripping members 34, 35 pivotally supported by scissors 36
And the claws 34a of the gripping members 34 and 35 for gripping the film 1a and the like,
And a spring 37 for urging the gripping members 34, 35 in a direction to bring the 35a closer to each other.

The elevating mechanism includes a seat 38 integrally attached to the grip 33, a shaft 31 penetrating the seat 38, and a first not-shown rotary drive for rotating the shaft 31 in the arrow R direction and the opposite direction. It is composed of a rotation driving means, and has a seat 38 and an outer peripheral surface 31a of the shaft 31.
The screw screwed to form a ball screw, and when the shaft 31 rotates, the seat 38 is fed in the axial direction, and the seat 38 and the seat 38 are integrally provided depending on the rotation direction of the shaft 31. The gripped portion 33 thus moved up and down.

The operation switching means is composed of the two holding members 34,
A cam 32a extending in the same direction as the shaft 31 between 35 and having an oval-shaped peripheral edge in a horizontal cross section at an arbitrary height position.
And a second rotation driving means (not shown) for rotating the cam shaft 32 in the direction of the arrow R and in the direction opposite thereto, as shown in FIG. 3 (A).
When the long diameter of 32a contacts two gripping members 34, 35, the claw 34
a and 35a are separated from each other to release the film 1a and the like, while FIG.
As shown in (B), the short diameter of the cam 32a has two gripping members 3
When coming into contact with 4, 35, the claws 34a, 35a abut by the urging force of the spring 37 and grip the film 1a or the like.

The shaft 31 and the cam shaft 32 are supported by the support member 39a.
, 39b are fixedly supported on the main body of the X-ray imaging apparatus.

The photographing section 40 has a fixed front plate 41 as described above.
When the film 1a or the like is received, the lower side is widely opened. When the film 1a or the like is discharged, the rear plate 42 is opened / closed so as to be in close contact with the front plate 41.
And a radiographic intensifying screen is attached to each of the plates 41 and 42.

The rear plate 42 is provided with holding means 44 for holding the film 1a and the like that have entered the photographing section 40 by suction. Further, an X-ray impermeable member is attached to the front plate 41 in the range of a slight length downward from the position corresponding to the contact member 43.

Further, an X-ray impermeable member is attached to the front plate 41 in a range of a slight length downward from the position corresponding to the contact member 43.

The carry-out means 50 is composed of a suction arm 51 having a suction plate at its tip and a conveying roller 52 for sucking the film 1a and the like held on the rear plate 42 side and drawing it from the photographing section 40. Further, the suction arm 51 includes a first arm 51a which is rotated by receiving a driving force, a second arm 51b which is further rotatably provided at a tip end of the first arm 51a, and a second arm 51b.
And a suction disk 51c provided at the tip of the.

Like the supply magazines 11 and 12, the receive magazine 70 is composed of a main body 70a for accommodating the film 1a and the like therein and a lid 70b. The receive magazine 70 includes a long film 1a and a short film 1b. It accommodates them without distinction. The carry-in to the receive magazine 70 is performed by the transport roller 52.

Next, the operation of the X-ray imaging system of this embodiment will be described.

First, a supply magazine 11 containing a long-sized unexposed X-ray film 1a and a supply magazine 12 containing a short-sized unexposed X-ray film 1b are set inside the apparatus. There is.

Here, an operator's instruction is input from a film selecting means (not shown), and based on this instruction, the corresponding sheet-fed means 21 or 22 from either one of the two supply magazines 11 and 12 is the film 1a or Take out 1b one by one.

For example, when the instruction is a long size, the sheet feeding means 21 enters the inside of the main body 11a through the opening of the supply magazine 11 and the uppermost one film 1a among the many laminated films 1a. To pull out the film 1a from the supply magazine 11. At this time, the other sheet means 22 does not perform any operation.

On the other hand, when the instruction is a short size, the sheet feeding means 22 enters the inside of the main body 12a through the opening of the supply magazine 12 and the uppermost one film 1b among the many laminated films 1b. To pull out the film 1b from the supply magazine 12. At this time, the other sheet means 21 does not perform any operation.

Since the following operation is the same regardless of the size instruction, the operation for a long size instruction, that is, for the long-sized film 1a will be described below.

The sheet feeding means 21 sucks the film 1a and pulls it out from the supply magazine 11, and then, while keeping sucking the film 1a, the carry-in roller 23 arranged below the photographing section 40.
(See FIG. 4A). This makes the film
The leading end in the transport direction 1a is guided between the two carry-in rollers 23. At this time, the rear plate 42 of the photographing unit 40 is opened downward, and the upper side is narrowed, so that the film 1a can smoothly enter the photographing unit 40 even from the lower side.

The carry-in roller 23 is rotationally driven while sandwiching the leading end of the film 1a in the carrying direction, and these two carry-in rollers 23 are driven.
Film 1a due to the frictional force between the peripheral surface of the film and the surface of film 1a.
Is conveyed upward between the front plate 41 and the rear plate 42 of the imaging unit 40 (see FIG. 4A). At this time, in the gripping device 30, the cam shaft 32 is rotated about its axis by the second rotation driving means (not shown), and the peripheral edge in the major axis direction of the cross section of the gripping member 34,
Since they come into contact with 35, both gripping members 34, 35 have their claws 34a, 35
It is in a state of being opened in the direction in which the spaces a are separated from each other against the urging force, and the film is placed between the separated claws 34a and 35a.
1a enters (see FIG. 3 (A)).

The film 1a continues to be conveyed upward, but if the trailing end (lower end) passes the roller 23, the film 1a
Although the upward conveying is stopped because the conveying force acting on the film 1a disappears, the roller 23 still continues to rotate, which causes the lower end of the film 1a to vibrate so as to project from the bottom, and thus the attitude of the film 1a. Is corrected so that its lower end is parallel to the axial direction of the roller 23 (see FIG. 4 (B)).

Here, the gripping portion 33 of the gripping device 30 grips both side portions of the film 1a in the posture-corrected state. That is, the cam shaft 32, which is in contact with the two gripping members 34, 35 in the major axis direction of its cross section, is rotated about its axis by, for example, about 90 degrees by the second rotation driving means (not shown), and the biasing force of the spring 37 is exerted. By the two claws 34a, 35a of the gripping members 34, 35
Hold the film 1a in close proximity (see FIG. 3 (B)).

Next, the first rotation driving means (not shown) rotates the shaft 31 constituting the ball screw in the direction of arrow R,
As a result, the grip portion 33 that grips the seat 38 and the film 1a
Is moved upward. At this time, the cam shaft 32 is
It also plays the role of a guide for 33, and prevents the grip portion 33 from swinging in conjunction with the rotation of the shaft 31.

When the upper end of the raised film 1a comes into contact with the contact member 43 provided at the upper portion of the photographing section 40, the positioning control means (not shown) detects this contact and makes the first rotation. The rotation driving by the driving means is stopped, and thereby the film 1a is accurately positioned with respect to the photographing unit 40 with the upper end as a reference (see FIG. 4C).

After being positioned, the film 1a is held at a predetermined position on the rear plate 42 by the holding means 44 provided on the rear plate 42.

In this manner, with the film 1a held by the photographing section 40, the cam shaft 32 of the gripping device 30 is rotated about 90 degrees around the cam shaft 32 of the gripping device 30 so that the gripping section 33 can be rotated.
The film 1a is released by separating the claws 34a and 35a of the
The shaft 31 is rotated in the direction opposite to the arrow R by the first rotation driving means to lower the grip portion 33 to its original position.

The rear plate 42 holding the film 1a pivots to the front plate 41 side around the upper end of the film 1a so that the entire surface is in close contact with the front plate 41, and an X-ray image is taken in this state (see FIG. 4 ( See D)). At this time, the X-ray impermeable member attached to the front plate 41 causes X-rays in a small area downward from the upper end of the film 1a.
Line 200 is not illuminated. And this range is the contact member 43
Since it is accurately determined from the upper end of the film 1a, it does not fluctuate due to variations in the length of the film.

After the X-ray image is taken, the rear plate 42 returns to the original position even if the lower end thereof is slightly opened, and from that position, the upper end is separated from the front plate 41 about the lower end (clockwise in the figure). ) Turn to open the upper end. At this time, since the film 1a is held by the holding means 44, it rotates together with the rear plate 42 in the clockwise direction.

Here, the first arm 51a of the suction arm 51 pivots in a direction approaching the rear plate 42 (counterclockwise in the figure),
The suction plate 51c of the suction arm 51 turns to a position facing the front surface of the rear plate 42 and then stops. Next, the second arm 51a provided at the tip of the first arm 51a makes the first (counterclockwise) direction in which the suction plate 51c provided at the tip of the second arm 51a is pressed against the film 1a held by the rear plate 42. The suction plate 51c is rotated with respect to the arm 51a and is brought into close contact with the front surface of the film 1a (see FIG. 5A).

When the suction disk 51c is brought into close contact with the film 1a, the suction disk 51c holds the film 1a, while the holding means of the rear plate 42 is held.
44 releases the holding of the film 1a, so that the film 1a
Is transferred from the rear plate 42 to the suction arm 51. Suction arm
The reference numeral 51 turns clockwise while holding the film 1a and turns back to the original position. In the process of returning to the original position, the turning and turning of the second arm 51b and the first arm 51a. Is adjusted to guide the upper end of the film 1a to the conveyance roller 52 (see FIG. 5B).

The suction arm 51 is a film up to the transport roller 52.
When the guide 1a is guided, the suction of the film 1a is released. As a result, the film 1a is transferred from the suction arm 51 to the transport roller 52.

The transport rollers 52 transport the film 1a by sandwiching the front and back surfaces of the film 1a from both sides and rotationally driving it. ID information recording device provided in this transport path
When the front end of the film 1a reaches 60, the conveyance is temporarily stopped here, and the photographing date and time, the photographing region (subject), and the photographing portion (subject), which is the front end of the film 1a in the conveying direction, are not exposed to X-rays. ID information such as patient name is recorded (FIG. 5 (C)).
reference). This ID information is input in advance by an operator from a keyboard or the like (not shown) prior to photographing.

Accurate ID in the area not exposed to X-rays
The transport of the film 1a on which the information is recorded is restarted by the rotation of the transport roller 52 again, and the cover 70
b from the opening of the receive magazine 70 where the
After being housed inside (see FIG. 5 (D)), a series of photographing processing ends.

As described above, according to the X-ray image radiographing apparatus of the present embodiment, the cam shaft has a very simple structure, and the cam shaft grips the gripping portion and the releasing position in the entire range in which the gripping portion is movable. Between the X-ray film and the X-ray film, the gripping and releasing of the gripping part can be freely operated at any position in the moving direction of the X-ray film. Accordingly, the film can be moved by an arbitrary length (height) to perform the gripping operation and the releasing operation of the film.

In addition, in the X-ray image radiographing apparatus of this embodiment, the X-ray shielding area for recording ID information can be accurately set with the upper end of the X-ray film 1a as a reference, so that variations in film length and There is also an advantage that it is not necessary to set this area to be large in consideration of the difference in film size and the like, and a relatively large area in which an X-ray image can be recorded can be secured.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of an X-ray imaging apparatus of the present invention.

FIG. 2 is a diagram for explaining a detailed configuration and operation of a grip device.

FIG. 3 is a diagram for explaining a detailed configuration and action of a grip portion.

FIG. 4 is a diagram showing an operating state of the X-ray imaging apparatus shown in FIG. 1 (No. 1).

5 is a diagram showing an operating state of the X-ray image capturing apparatus shown in FIG. 1 (No. 2).

[Explanation of symbols]

 1a, 1b X-ray film 11, 12 Supply magazine 21, 22 Sheet feeding means 23 Loading roller 30 Lifting means 31 Shaft 32 Cam shaft 33 Grip 34, 35 Grip 34a, 35a Claw 36 Pin 37 Spring 38 Seat 40 Photographing part 41 Front plate 42 Rear plate 43 Abutment member 44 Holding means 50 Outgoing means 60 ID information recording device 70 Receive magazine

Claims (4)

[Claims] 1. An X-ray film is picked up one by one from one or more supply magazines containing a plurality of sheet-like unexposed X-ray films having different lengths in the transport direction, and the X-ray film is photographed. The X-ray film on the X-ray film while holding the X-ray film in the imaging section, and after taking the image, the X-ray film is unloaded from the imaging section and then unloaded. An X-ray image capturing method in which a captured X-ray film is stored in a receive magazine, wherein the X-ray film is loaded into the imaging unit from below, and the X-ray film is loaded in the imaging unit. Hold the X-ray film and
An X-ray image photographing method characterized in that the X-ray film is moved upward in accordance with the length of the X-ray film so that the upper end of the X-ray film is aligned with a predetermined position of the photographing unit. 2. A gripping position at which the X-ray film is sandwiched by two gripping members pivotally supported in a scissor shape and ends of adjacent two members come close to or abut each other, and the X-ray film is released at a distance. A gripping part that is movable between a gripping position and a releasing position, a moving unit that moves the gripping part in a direction substantially orthogonal to a movement plane between the gripping position and the releasing position, and the gripping part is movable. 2. The X according to claim 1, wherein a cross section of the cam shaft is formed as a cam for moving the grip portion between a grip position and a release position over a range, the cam shaft extending in the orthogonal direction. A gripping device used for a line image capturing method. 3. A sheet feeding means for taking out the X-ray films one by one from one or more supply magazines containing a plurality of sheet-like unexposed X-ray films having different lengths in the transport direction, A carrying-in means for carrying the X-ray film into the photographing section, a photographing section for holding the X-ray film in the photographing section and photographing an X-ray image of a subject on the X-ray film, and the X-ray film after the photographing. In the X-ray image capturing apparatus, the carrying-out means carries out the X-ray film, and the carrying-out means carries the taken-out X-ray film out of the imaging section, and the housing means accommodates the taken-out taken X-ray film in a receive magazine. The X-ray film is loaded into the imaging unit from below, and the X-ray film that has been loaded is gripped in the imaging unit and the upper end of the X-ray film is aligned with a predetermined position of the imaging unit. X-ray imaging apparatus characterized by comprising a gripping device for moving upward in accordance with the X-ray film in its length as. 4. A gripping position at which the gripping device grips an X-ray film when two gripping members are pivotally supported in a scissor shape and end portions of both adjacent members come close to or abut each other.
A gripping portion that is movable between a release position that separates and releases the X-ray film, and a movement that moves the gripping portion in a direction substantially orthogonal to a movement plane between the gripping position and the release position. And a cam shaft whose cross-section is formed as a cam for moving the grip portion between a grip position and a release position over the movable range, the cam shaft extending in the orthogonal direction. The X-ray imaging apparatus according to claim 3, which is characterized in that.