JPH10234718A - X-ray snapshooting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve the miniaturization and weight reduction of a X-ray snapshooting device by providing one film take-out mechanism for two film feeding magazines. SOLUTION: First and second film feeding magazines are arranged between side plates 27a and 27b. On both the side plates, guide grooves 30a, 30b consisting of common grooves S, first guide grooves S1 being branched therefore and guided to a first magazine, and second guide grooves S2 guided to a second magazine are formed. One pad support 28 is fitted into the guide grooves 30a and 30b. Further, levers 25a and 25b are provided to the branch points, and thereby, whether the pad support 28 is introduced to the first guide groove S1 or it is introduced to the second guide groove S2 is controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray radiography apparatus used in combination with an X-ray fluoroscopy table or the like, and in particular, to take out a film from a plurality of film supply magazines by using a common pad support. The present invention relates to an X-ray photographing apparatus configured as described above.

[0002]

2. Description of the Related Art FIG. 7 is a side view of an external appearance of an overtable X-ray fluoroscopy table, in which a support frame 2 is rotatably mounted on a base 1, and a table 4 on which a subject 5 is placed is mounted on the upper surface thereof.
Is provided. On the lower side of the support frame 2, an X-ray photographing apparatus 6 is incorporated. Further, an image intensifier 7 is provided below the X-ray photographing device 6 at the center of radiation of X-rays from the X-ray tube device 3 supported by the base 1. In an ordinary state, , This and TV camera 8
And a television monitor (not shown) to perform fluoroscopic observation.

FIG. 8 is a schematic sectional view of a conventional X-ray radiography apparatus used in combination with such an X-ray fluoroscopy table. The X-ray copying apparatus 6 is provided with two film supply magazines 11a and 11b, and stores films having different sizes. The film supply magazine 11a is provided with a suction pad 12a for taking out the film therefrom and a transport system 13a for transporting the film to the film holder 14. Further, a suction pad 12b and a transport system 13b are separately provided for the film supply magazine 11b. The film sent from the transport system 13a or 13b to the film holder 14 is moved to a photographing position, photographed by X-ray irradiation, and then stored in the storage magazine 1 from the film holder 14 via the transport system 13c.
5.

[0004]

As shown in FIG. 8, in a conventional X-ray speed-change apparatus, a pad, a motor, and a motor are provided in correspondence with a plurality of film supply magazines.
This requires a film take-out mechanism including a take-out lever, a guide, and a link, and a film conveyance system including a conveyance roller and a guide.

SUMMARY OF THE INVENTION An object of the present invention is to provide an X-ray radiographic apparatus in which the whole is reduced in size and weight by providing only one film take-out mechanism and only one film transport system in correspondence with a plurality of film supply magazines. Is to do.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an X-ray radiographic apparatus having a first film supply magazine and a second film supply magazine disposed between at least two side plates, wherein the two side plates have a common structure. And a first guide groove branched from the first guide groove and a second guide groove guided to the first film supply magazine. A selection lever is provided at a position corresponding to the branch point of the guide groove, and this selection lever moves the pad support configured to be guided along the guide groove from the common guide groove to the first guide groove. Alternatively, it is characterized by being selectively guided to be switched from the common guide groove to the second guide groove.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a film take-out mechanism of an X-ray copying apparatus according to an embodiment of the present invention.
3 is a right side view of FIG. FIG. 4 shows FIG.
3 is a schematic perspective view for explaining the relationship between the pad support and its guide groove shown in FIG. 3, FIG. 5 is a schematic perspective view for explaining the relationship between the motor and the guide lever shown in FIG. 1, and FIG. FIG. 4 is a schematic perspective view for explaining the operation of the selection lever shown in FIGS. 2 and 3.

In FIG. 1, the suction pad 12 is supported by a pad support 28, moves up and down by known means, and is connected to a vacuum pump so that the film can be suctioned by suction. It has become.

As shown in FIGS. 2 to 4, both ends of the pad support 28 are fitted into guide grooves 30a and 30b provided in the side plates 27a and 27b, respectively. Guide groove 30a,
Reference numeral 30b denotes a common guide groove s and a first guide groove s1 and a second guide groove s2 branched from the common guide groove s. It is guided to s1 or to the second guide groove s2. First film supply magazines 11 corresponding to the leading ends of the guide grooves s1 and s2, respectively.
a and the second film supply magazine 11b,
When the pad support 28 is guided to the leading end of the guide groove s1, the suction pad 12 sucks out the film from the first film supply magazine 11a, and the pad support 28 is guided to the leading end of the guide groove s2. The suction pad 12 is in the second film supply magazine 11
b so that the film is carried out by suction.

Guide levers 25a and 25b are arranged outside the side plates 27a and 27b, and the lower ends thereof are fixed to a shaft 26 (FIG. 4). Grooves l provided in the levers 25a and 25b
a and lb are fitted with the ends of the pad support 28, and the guide levers 25a and 25b are rotated to rotate the pad support 2
8 can be moved along the guide grooves 30a and 30b. The means for rotating the guide levers 25a and 25b is constituted by the motor 21. That is, the motor 21 is mounted on the side plate 27a, and the flange shaft 24 is fixed to the output shaft (FIGS. 1 and 5). At the eccentric position of the flange shaft 24, as shown in FIG.
An axis p1 is provided. On the other hand, a shaft p2 is provided at the lower end of the guide lever 25a. A link lever 23 is mounted between the shaft p1 and the shaft p2. When the flange shaft 24 is rotated by the output shaft of the motor 21, the link lever 23 is freely moved in the direction of the arrow, and the lever 25 is moved by the lever 23.
a, 25b from position a to position b, and vice versa
(FIG. 5). Here, the position “a” indicates a position where the suction pad 12 corresponds to an entrance of a film loading roller 101 described later, and the position “b” indicates that the suction pad 12 is the first film supply magazine 11a or 2 shows a position corresponding to the film supply magazine 11b. In FIG. 5, D is a detection sensor that detects a part of the flange shaft 24 and stops the motor 21 when the output shaft of the motor 21 makes one rotation.

Selection levers 61 and 62 are arranged at positions corresponding to the branch portions of the guide grooves 30a and 30b. Side plate 2
Guide rollers 52 are provided on 7a and 27b, thereby supporting the selection levers 61 and 62. Selection lever 61, 62
Opens a passage from the common guide groove s1 to the first guide groove s1 at the position c, that is,
From the position (shown) in which the passage to the guide groove s2 is closed, ie, the position of d, that is, the passage from the common guide groove s to the first guide groove s1, and the second guide from the common groove s. Moved to a position to open the passage to the groove s2,
Conversely, it is configured to be moved from the position d to the position c. For this purpose, the ends to the levers 61 and 62 are shown in FIG.
The rotating arms 46 and 4 fixed to the rotating shaft 45 as shown in FIG.
7. A pulley 44 is attached to one end of the rotating shaft 45, and is connected to a pulley 42 of the motor 41 via a belt 43. At the other end of the rotary shaft 45, a detection cam 50 is provided.
The configuration is such that the depressions of 0 are detected by the detection sensors 48 and 49.

In FIG. 2 and FIG. 3, reference numeral 100 denotes a known film transport system, and
1 schematically shows a path from the sheet feeder No. 01 to a discharge roller 103 through a transfer path 102. Reference numeral 51 denotes a stop stopper.

Next, the operation will be described. The selection levers 61 and 62 shown in FIGS. 2 and 3 are at the position c, open a passage from the common guide groove s to the first guide groove s1, and move from the common guide groove s to the second guide groove. The state where the passage to s2 is closed is shown. At this time, the pad support 28 is at the position a where the suction pad 12 corresponds to the entrance of the film loading roller.

In the above state, first, the operation of taking out a film from the first film supply magazine 11a and sending it to the carry-in roller 101 will be described. In response to the film take-out command, the motor 21 is operated, and the flange shaft 24 attached to the output shaft is rotated. When the flange shaft 24 makes one rotation, the detection sensor D detects that one rotation has been made, and the motor 21 is stopped. In this case, as shown in FIG. 5, the link lever 23 reciprocates in the direction of the arrow, and the lever 25a,
25b is rotated from the position a to the position b to the position a. The pad support 28 includes guide levers 25a and 25b.
Is rotated from the common guide groove s to the first guide groove s.
1 and the levers 25a and 25b reach the position b, the suction pad 12 is located in the first film supply magazine 11a and sucks the film. Then, when the guide levers 25a and 25b return to the original position a, the pad support 28 is also guided from the first guide groove s1 to the common guide groove s, returns to the original position, and the film sucked by the suction pad. Is sent to the carry-in roller 101 and stands still.

Next, a second film supply magazine 11b
The operation of taking out the film from will be described. The motor 41 is operated by an irradiation field selection button (not shown). Pulley 4
2, the rotating shaft 45 rotates counterclockwise by the belt 43 and the pulley 44 (FIG. 6). By the operation of the detection cam 50 and the detection sensors 48 and 49, the operation of the motor 41 is stopped when the rotation shaft is rotated substantially half a turn. The rotation of the rotation shaft 45 also causes the rotation arms 46 and 47 to rotate counterclockwise, and the lever 6
The guide rollers 52 are guided by the guide rollers 52, move from the position c to the position d, open a passage from the common guide groove s to the second guide groove s2, and move from the common guide groove s to the first guide groove s2. The passage to the guide groove s2 is closed. Next, when the motor 21 operates, the guide levers 25a and 25b rotate from the position a to the position b, and the pad support 28 is guided from the common guide groove s to the second guide groove s2, and the suction pad 12 is moved. Is the second
Reaches the film supply magazine 11b of FIG. When the levers 25a, 25b return from the position b to the original position a, the pad support 12 moves to the second guide groove s2.
Is guided to the common guide groove s, returns to the original position,
The film is sent to the carry-in roller 101.

In this state, when taking out the film from the first film supply magazine 11a again, the motor 41 is operated by the command of the irradiation field selection button, and the rotating shaft 45 is rotated clockwise, and this is rotated by half the rotation. Then, the operation of the motor 41 is stopped by the operation of the detection cam 50 and the detection sensors 48 and 49. By the half rotation of the rotating shaft 45, the rotating arms 46, 47 also rotate, and the levers 61, 62
Is moved from the position d to the position c. As a result, the passage from the common guide groove s to the second guide groove s2 is closed,
The passage from the common guide groove s to the first guide groove s1 opens, and the pad support 28 is guided in the guide groove s → s1 → s so that the film can be taken out from the first film supply magazine 11a. Become.

[0017]

According to the present invention, one common film take-out mechanism and one common film transport system are provided for a plurality of film supply magazines, so that the entire apparatus can be reduced in size and weight.

[Brief description of the drawings]

FIG. 1 is a front view showing a film take-out mechanism of an X-ray flash apparatus according to an embodiment of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a schematic perspective view for explaining the relationship between the pad support shown in FIGS. 1 to 3 and its guide groove.

FIG. 5 is a schematic perspective view for explaining a relationship between a motor and a guide lever shown in FIG. 1;

FIG. 6 is a schematic perspective view for explaining the operation of the selection lever shown in FIGS. 2 and 3.

FIG. 7 is a side view showing a general X-ray fluoroscope.

FIG. 8 is a schematic perspective view of the rapid-moving device shown in FIG.

[Explanation of symbols]

 Reference Signs List 6 X-ray copying machine 11 Film supply magazine 12 Suction pad 21 Motor 25 Guide lever 27 Side plate 28 Pad support 30 Guide groove s Common guide groove s1 First guide groove s2 Second guide groove 41 Motor 61, 62 Selection lever

Claims (1)

[Claims] An X-ray apparatus having a first film supply magazine and a second film supply magazine disposed between at least two side plates, wherein the two side plates have a common guide groove and a branch. Then, a guide groove composed of a first guide groove guided to the first film supply magazine and a second guide groove guided to the second film supply magazine is formed, and a guide groove corresponding to a branch point of the guide groove is formed. A selection lever is provided at a position, and the pad support is configured to be guided along the guide groove by the selection lever, so that the pad supporter can be moved from the common guide groove to the first guide groove or from the common guide groove. An X-ray radiography apparatus characterized in that it is selectively guided to a second guide groove.