JP3269674B2 - X-ray fluoroscopy table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray fluoroscopy table,
In particular, the present invention relates to an opening / closing mechanism for opening and closing an upper plate and a lower plate of a film holder (hereinafter, referred to as a film holder) that holds an X-ray film.

[0002]

2. Description of the Related Art In an X-ray fluoroscopy table, an unphotographed X-ray film is taken out from a supply magazine and sent to a film holder by a transport roller. The film holder is loaded with the X-ray film and stands by for photographing. Then, when a photographing signal is sent, the film holder is moved to the photographing position by the moving mechanism to perform X-ray photography, and when the photographing is completed, the film holder returns to the standby position, and the photographed X-ray film is stored in the storage magazine by the transport mechanism. Is stored in

In a conventional X-ray fluoroscopy table, a front intensifying screen 103 attached to the lower surface of an upper contact plate (front contact plate) 101 and a lower contact plate (back contact plate) as shown in FIG. Back intensifying screen 10 attached to the upper surface of
An X-ray film 105 is loaded between the front contact plate 4 and the front contact plate 101, the back contact plate 102, and the space surrounded by the sealing member 106 surrounding the side surfaces thereof. And back intensifying screen 10
4.

When loading and discharging the X-ray film 105, the back contact plate 102 is opened and closed. As an example, when the motor 107 is rotated, the link 108 connected to the output shaft of the motor 107 rotates, the pin 109 connected to the tip of the link 108 moves upward, and the tip of the pin 109 is L-shaped. When the hook 110 is rotated in contact with one end of the hook 110, the other end of the hook 110 pushes down a latch fixed to the back contact plate 102, whereby the back contact plate 102 opens and closes.

[0005] When the X-ray film 105 is loaded, the back contact plate 102 is closed by an operation reverse to the above, and the moving motor 111 is rotated to rotate the timing pulley 1.
12, the timing belt 113 is operated via the film holder 1 attached to the timing belt 113.
15 to the shooting position.

[0006]

The above-mentioned conventional apparatus opens and closes a film holding mechanism for transporting a film. This opening and closing mechanism transmits the rotation of a motor to a link, a pin, and a hook, and is mechanically complicated. It was large. Therefore, the size of the entire apparatus is increased, and the apparatus is economically expensive.

It is an object of the present invention to simplify the opening / closing mechanism, reduce the size and cost of the apparatus, and to facilitate the opening / closing operation.

[0008]

In order to achieve the above object, a magazine for accommodating an unphotographed or photographed X-ray film, and an additional magazine provided with the unphotographed X-ray film on the inner surfaces of an upper plate and a lower plate. A film holding mechanism for fixing the X-ray film sandwiched between the photographic papers, a conveying mechanism for conveying the X-ray film between the magazine and the film holding mechanism, and supporting the film holding mechanism with an outer frame to a photographing position In an X-ray fluoroscopy table having a moving mechanism for moving and an opening and closing mechanism for opening and closing an upper plate and a lower plate of the film holding mechanism, the opening and closing mechanism is attached to a side surface of the upper plate parallel to a film loading direction. A first opening / closing axis connected to a supporting member, a second opening / closing axis connected to a supporting member attached to a side surface of the lower plate parallel to the film loading direction, and a movement of the film holding mechanism. And a first groove that crosses each other to fit the first opening / closing axis and the second opening / closing axis on the outer frame side surface of the moving mechanism and to slide the film holding mechanism and the outer frame. And a sliding mechanism including a second groove, which opens and closes the upper plate and the lower plate around a sliding shaft of the sliding mechanism.

[0009]

When the outer frame is moved in the film loading direction by the moving mechanism, one end of the film holding mechanism is pressed by the stopper. Then, the movement of the film holding mechanism stops, and only the outer frame moves. Then, the first opening / closing shaft connected to the upper plate on the first groove provided on the side surface of the outer frame was guided to push up the upper plate, and further connected to the lower plate on the second groove provided on the side surface of the outer frame. The second opening / closing shaft is guided to push the lower plate downward. Thus, the opening and closing mechanism can be operated by the operation of the moving mechanism, so that the opening and closing mechanism can be simplified, and further, the entire apparatus can be simplified.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 is a perspective view showing a configuration of the present invention, FIG. 2 is a partially enlarged perspective view and a side view of a front contact plate, and FIG. 3 is a partially enlarged perspective view and a side view of a back contact plate. 1 is X
A front contact plate for pressing the upper surface of the X-ray film 5; a back contact plate for pressing the lower surface of the X-ray film 5; The attached back intensifying screen, 5 is an X-ray film, 6 is a support member fixed to the side end of the front contact plate 1 and supporting the opening / closing shaft 17 and the guide roller 19;
A support member fixed to the side end of the back contact plate 2 and supporting the opening / closing shaft 18.

11 is a motor for moving the outer frame 15, 12 is a pulley for transmitting the power of the motor 11 to the belt 13, 13 is a belt for transmitting the rotation of the pulley 12 to the horizontal movement of the rail 21, and 15 is a belt. An outer frame surrounding the front contact plate 1 and the back contact plate 2, and 16 is the front contact plate 1.
And a spring for maintaining a horizontal space between the back contact plate 2 and the outer frame 15 at a constant interval, 17 is an opening / closing shaft that fits into the groove 24 of the outer frame 15, and 18 is a groove that fits into the groove 25 of the outer frame 15. An opening / closing shaft 19 is a guide roller that contacts a stopper 20,
Reference numeral 0 denotes a stopper that restricts the movement of the front contact plate 1.

Reference numeral 21 denotes a rail which moves in the direction of movement of the belt 13 together with the outer frame 15 and guides the outer frame 15 in a direction perpendicular to the direction of operation of the belt 13. Fitting member moving on top, 2
Reference numeral 3 denotes a sliding shaft which is fixed to the ends of the front contact plate 1 and the back contact plate 2 and moves the groove 26 of the outer frame 15 in the horizontal direction. Reference numeral 24 is provided on the side surface of the outer frame 15 and slides the opening / closing shaft 17 upward. Grooves 25 for movement are provided on the side surface of the outer frame 15,
Is a groove for moving the sliding shaft 23 in the horizontal direction.

Next, the operation of this embodiment will be described. First,
When loading the X-ray film 5, the motor 11 is rotated to move the outer frame 15, the front contact plate 1, and the back contact plate 2 to the film loading side. Then, the front contact plate 1
The guide roller 19 attached to the support member 6 contacts the stopper 20 to stop the movement of the front contact plate 1 and the back contact plate 2. At this time, the outer frame 15 moves toward the film loading side by the length of the spring 16 provided in the space between the front contact plate 1 and the back contact plate 2 and the sliding shaft 23 at the end.

The sliding shaft 23 moves horizontally in the groove 26, and the opening / closing shaft 17 supported by the front contact plate 1 moves obliquely upward in the groove 24 as shown in FIG. Further, the opening / closing shaft 18 supported by the back contact plate 2 moves obliquely downward in the groove 25 as shown in FIG. As a result, the front contact plate 1 is curved upward, and the back contact plate 2 is curved downward so as to open, so that the X-ray film 5 can be carried in.

When the loading of the X-ray film 5 is completed, the motor 11 rotates in the reverse direction and the outer frame 15 moves in the photographing direction.
The outer frame 15 moves independently by the length of the groove 26, and the open / close shaft 1
7 moves downward and the opening / closing shaft 18 moves upward, and the front contact plate 1
And the back contact plate 2 is closed. Further, when the motor 11 rotates, the outer frame 15, the front contact plate 1 and the back contact plate 2 move to the photographing position. When the photographing is completed, the X-ray film 5 is taken out by returning to the original position and performing the opening / closing operation described above.

As described above, by using the moving mechanism of the outer frame 15 also for the opening and closing operation of the contact plate, it is possible to open and close with a simple mechanism and to simplify the apparatus.

[0017]

According to the present invention, the open / close shafts mounted on the upper plate and the lower plate are fitted into the grooves provided in the outer frame, and only the outer frame can be moved alone, and the upper plate and the upper plate are moved by the movement mechanism. Since the lower plate can be opened and closed, it is not necessary to provide a drive unit for opening and closing. As a result, the opening and closing operation can be performed with a simple mechanism, and the apparatus can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of the present invention.

FIG. 2 is a partially enlarged perspective view and a side view of a front contact plate.

FIG. 3 is a partially enlarged perspective view and a side view of a back contact plate.

FIG. 4 is a perspective view showing a conventional opening / closing mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front contact plate 2 Back contact plate 3 Front intensifying screen 4 Back intensifying screen 5 X-ray film 6 Support member 7 Support member 11 Motor 12 Pulley 13 Belt 15 Outer frame 16 Spring 17 Opening / closing axis 18 Opening / closing axis 19 Guide roller 20 Stopper 21 rail 22 fitting member 23 sliding shaft 24 groove 25 groove 26 groove

Claims (1)

(57) [Claims] 1. An X-ray film is fixed by inserting a non-photographed X-ray film between a magazine for storing an unphotographed X-ray film and an intensifying screen provided on the inner surfaces of an upper plate and a lower plate. A film holding mechanism, a conveying mechanism for conveying the X-ray film between the magazine and the film holding mechanism, a moving mechanism for supporting the film holding mechanism with an outer frame and moving the film holding mechanism to a photographing position, In an X-ray fluoroscopic table having an opening / closing mechanism for opening and closing the plate and the lower plate, the opening / closing mechanism includes a first opening / closing shaft connected to a support member attached to a side surface of the upper plate parallel to the film loading direction, A second opening / closing axis connected to a support member attached to a side surface of the lower plate parallel to the film loading direction, a stopper for restricting the movement of the film holding mechanism, A sliding mechanism including a first groove and a second groove which are fitted to the first opening / closing shaft and the second opening / closing shaft and cross each other to enable the film holding mechanism and the outer frame to slide;
With the above-mentioned centering on the sliding shaft of this sliding mechanism.
An X-ray fluoroscopic table for opening and closing a plate and a lower plate .