JPH02287343A - Quick photographing device - Google Patents

Abstract

PURPOSE:To easily exchange or unload an intensifying screen by interlocking and linking a driving rotor installed in a carriage main body with an input rotor installed in a film holder in a state where the film holder is attached to the carriage main body. CONSTITUTION:In the state where the film holder 13 is attached to the carriage main body 12, the driving rotor 44 installed in the carriage main body 12 and the input rotor 42 of a film conveying mechanism installed in the film holder 13 are interlocked and linked in a transmitted state. By detaching the film holder 13 from the carriage main body 12, the interlocking and linking state of the input rotor 42 on the film holder side and the driving rotor 44 on the carriage main body side is cancelled. By attaching the film holder 13 at the specified position of the carriage main body 12, on the contrary, the input rotor 42 is interlocked and linked with the driving rotor 44 and the film conveying mechanism is driven with power from the carriage main body side. Thus, the intensifying screen is easily loaded and unloaded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a quick-shooting device used in a fluoroscopic imaging table such as an X-ray fluoroscopic field imaging device or an X-ray tomography device, and particularly relates to The present invention relates to a snapshot photographing device in which a film carriage is movable between transfer and reception positions.

B. Prior art As this type of quick-shooting device, for example,
The one shown in Publication No. 1-205ElQ is known. In this conventional technology, a drive shaft extending along the carriage movement direction is inserted into the inside of the film carriage, and the power from this drive shaft drives the film transport mechanism a provided in the film carriage to move the film between the upper and lower intensifying screens. Films were brought in and taken out.

Since the film transport mechanism must be driven while allowing the film carriage to move fh, a drive rotor is attached to the drive shaft so that it can only slide in the longitudinal direction, and the drive shaft and the film A feed belt is wound around a feed roller attached to a carriage, and the film is conveyed while being held between the feed belt and the pressing roller.

C6 Problems to be Solved by the Invention However, according to the conventional example such as "double series", the drive shaft is inserted into the film carriage, and the drive rotating body and the feed roller are integrally interlocked via the feed belt. For example, maintenance of sensitizer 1, 1
For example, you can replace the intensifying screen to use the most suitable intensifying screen for the image you want to use, or you can use an imaging plate that does not require an intensifying screen and remove the intensifying screen to obtain the best possible shadow. In some cases, the film carriage must be pulled out from the drive shaft. Because of the difficulty in separating the film carriage, intensifying screens cannot be used properly as described above, resulting in poor images. Since the image is taken without removing the intensifying screen, there is an inconvenience that a larger amount of X-rays must be exposed than in the case without the intensifying screen.

The present invention has been made in view of these circumstances, and although it provides the conventional film transfer function, it also enables the intensifying screen to be easily attached and detached. The object of the present invention is to enable suitable photographing using each of 14 films and an imaging plate.

01 Means for Solving the Problems In order to achieve the above object, the present invention provides a quick-shooting 1i shadow device η in which a film carriage is configured to be movable between a closest shadow position and a film transfer position, in which the film carriage is It is composed of a carriage body that moves between the photographing position and the film transfer position, and a film holder that is detachably attached to the carriage body, and the film holder is equipped with an intensifying screen and a film transport mechanism, and With the film holder attached to the carriage body, attach the L to the carriage body.
The driving rotary body and the input rotary body of the film transport mechanism provided in the film holder are connected in a transmission state.

E8 Effect According to the configuration of the present invention, by removing the film holder from the carriage main body, the interlocking connection state between the input rotating body on the film holder side and the drive rotating body on the carriage main body side can be released, and conversely, the film holder can be removed from the carriage body. By attaching it to a predetermined position on the carriage body, the input rotary body is interlocked with the drive rotary body, and the film transport mechanism can be driven by power from the carriage body side.

F. Example Embodiments of the present invention will be described below based on the drawings.

FIG. 7 is an overall front view of a perspective ↑ maximum shadow table equipped with a quick-shot photographing device according to the present invention, and is mounted on a base l installed on the floor surface, which is rotatable around a horizontal axis. Main frame 2
The main body frame 2 is provided with a top plate 3 for mounting a subject so as to be movable by driving in a direction perpendicular to the rotating wheel center. A wire tube 5 is provided, an image intensifier 6 is provided below the top plate 3, and further,
A snapshot photographing device 7 is provided between the top plate 3 and the image intensifier 6 to photograph and record a perspectively photographed image.

1 is a vertical side view of the main parts of the quick-shot photographing device, FIG. 2 is an enlarged side view of the main parts of FIG. 1, and FIG. 3 is a plan view of the quick-shot photographing device 7. Inside the case 8, there is a film that can be moved back and forth in the left-right direction (in the vertical direction in FIG. 3) between the photographing position (A), which corresponds to the direct position of the image intensifier 6, and the film transfer position (11). It is equipped with a carry and a 9, and also has a film transfer position (
At the bottom of [3], there is a supply magazine IO stacked with unexposed cant film F and exposed films L and F.
The collection magazines 11 and 11, which accommodate the ``carriers'' in a stacked manner, are arranged side by side.

The film carriage 9 is composed of a balent-faced carriage body 12 with two sides open and a flat box-shaped film holder 13 housed inside the carriage body 12.

A drive shaft 14 that extends across the opposing side walls of the case 8 passes through the back side of the carriage body 12 (the right end side in the figure), and a drive shaft 14 extends through the lower surface of the front side (the left side in the figure) of the carriage body 12. is equipped with a pair of left and right rollers 15, and the second roller 15 is mounted parallel to the drive shaft 14 in the case 8.
The carriage main body 12 is configured to be inserted into a guide rail 16 which is installed and fixed to the top plate 3, so that the carriage main body 12 can slide along the drive shaft 14 and the guide rail 16 while maintaining a posture parallel to the top plate 3.

A belt 17 for driving the carriage is wound on the back side of the case 8 in parallel with the drive shaft 14 , and the back end surface of the carriage body 13 is connected to this belt 17 , and the film carriage 9 is rotated by forward and reverse rotation of the heald 17 . The entire body is moved to both positions (A
) (B).

The drive shaft 14 is operatively connected to a motor 20 via a belt 18 and a chain 19, and power is transmitted from the chain 19 to a film supply roller 21 and a film collection roller 22, respectively. The film supply roller 21 is moved from the supply magazine 10 to the suction device 23.
The collection roller 22 sends out the film F taken out one by one toward an opening 24 formed at the bottom of the carriage body 12, and the collection roller 22 collects the photographed film F' sent out from the opening 24. It is sent to the collection magazine 11.

As shown in the perspective views of FIGS. 4 and 5, the film holder 13 is attached to the carriage main body 12 so that it can be inserted into and removed from the front, and the film holder 13 is attached to a guide rail 25 provided on each opposing side wall of the carriage main body 12. and a guide groove 2 in the front and back direction formed on the left and right outer surfaces of the film holder 13.
6 are engaged with each other and are configured to be able to be inserted and removed by sliding while maintaining a predetermined posture.

Further, a front lid 28 is attached to the front end of the carriage body 12 via a hinge 29 provided with a winding spring 29a that urges the front lid to move toward the closing side (note that the hinge 29 is attached to the front end of the carriage body 12). (screws for this are omitted)
When the film holder 13 is inserted, the front cover 28 comes into contact with the adjusting screw 27 provided at the front end of the film holder 13 due to the biasing force of the coiled spring 29a, and the film holder 13 cannot be stopped from being pulled out forward. While
The film holder 13 can be inserted and removed by opening the front 128 against the biasing force of the coiled spring 29a.

With this configuration, the front cover 28 can be easily opened and closed when inserting and removing the film holder 13 and the imaging plate, and when taking pictures one by one by inserting the cassette. However, for example, the front cover 28 may be configured to be attached to and detached from the carriage body 12 by bolting.

By adjusting the amount of protrusion of each of the adjustment screws 27, 27, the pushing and loading position of the film holder 13 can be adjusted.

As shown in the cross-sectional view of FIG. 6, an aperture 30 for photographing is formed on the upper surface of the film holder 13, and a sensitizer made of an X-ray transparent material is formed so as to close most of the aperture 30. A paper support plate 31 is attached, and this support plate 31
A front intensifying screen 32 is attached to the lower surface of the screen. On the other hand, inside the film holder 13, an intensifying screen support 34 to which a rear intensifying screen 33 opposite to the front intensifying screen 32 is attached is movable up and down and displaced toward the front intensifying screen 32. It is provided in a biased state.

Further, a film transport mechanism 35 is installed inside the film holder 13 from the back side to the side thereof.

This film conveyance mechanism 35 includes a large diameter rubber roller 36 that is axially mounted on the left and right sides, a holding heald 37 that is wound around the outer peripheral surface of the rubber roller 36, and a small width that is wound around one end of the rubber roller 36 in the longitudinal direction. It is composed of a conveyor belt 38.

A winding start portion of the rubber roller 36 and the holding belt 37 is provided above the frontage 24 of the carriage body 12, and the unphotographed film F supplied from below via the supply guide 39 is transferred to the rubber roller 36. It is held between the holding belt 37 and the holding belt 37 and delivered to the conveying belt 38. The film F fed onto the IIW feed belt 38 is fed to the lower side of the front intensifying screen 32 while its widthwise edges are held between the feed belt 38 and the upper roller 40. When the film carriage 9 is in the film transfer position 1 (B), the intensifying screen support 34 in the film 11 holder 13 is lowered, and after the film F has been supplied to a predetermined position below the front intensifying screen 32. As the film carriage 9 reaches the photographing position (A), the intensifying paper support 34 is raised, so that the film F can be closely held between the front and rear intensifying screens 32 and 33.

After shooting, the film carriage 9 is again sent to the film transfer position (B), and along with this, the aggravated paper support 34
is lowered, and the photographed film F' can be taken out.

Here, by reversing the film transport mechanism 35, the photographed film F' is sent out downward from the opening 24, and is passed through the collection guide 41 and the collection roller 22 to the collection magazine 11.
It is designed to be sent to

The film transport mechanism 35 configured as described above receives power via an input gear 42 as an input rotating body attached to the right outer surface of the carriage body 12.

In other words, the gear 43 fixed to the support shaft of the rubber roller 36
is engaged with an input gear 42, and on the other hand, the input gear 42 is engaged with a drive gear 44 as a drive rotating body provided in the carriage body 12, so that the power of the drive shaft 14 is transmitted to the film transport mechanism 35. has been done.

The drive gear 44 is supported so as not to be horizontally movable with respect to the carriage body 12, and is key-fitted or spline-fitted to the drive shaft 14. It is constructed so that power can be extracted from the

Therefore, if it becomes necessary to replace or remove the aggravated v132.33, the front cover 2 of the carriage body 12
By removing 8, the film holder 13 can be pulled out forward, and the film holder 13G carriage body 1
2, the input gear 42 becomes the drive gear 44.
They are interlocked and connected to each other, and are automatically switched to a state in which power can be transmitted to the side 35 of the film transport 1a.

This interlocking connection structure is not limited to the above-mentioned gear engagement structure, but for example, a drive roller as a drive rotating body is attached to the drive shaft 14, and an input roller as an input rotating body is provided on the film holder 13 side. Power may be transmitted from the drive shaft 14 to the film transport mechanism 35 using a frictional transmission structure due to contact between both rollers.

As described in detail of the G8 invention, according to this invention, the film carriage is divided into a film holder equipped with an intensifying screen and a carriage main body, and when the film holder is attached to the carriage main body, While the drive rotating body attached to the camera and the input rotating body attached to the film holder can be interlocked and connected, the film holder can be attached and detached from the carriage body, making it easy to attach and detach the film holder from the carriage body and replace the intensifying screen. It is now possible to remove the film, and it is now possible to take good images using the intensifying screen that is most suitable for the film being used.In addition, it is possible to take images using an imaging plate that does not require intensifying paper, and the X-ray sip is increased. Now I can do it well without any problems.

[Brief explanation of the drawing]

The drawings show an embodiment of a quick-shot photographing device according to the present invention,
Fig. 1 is a schematic longitudinal sectional side view of the quick-shooting device, Fig. 2 is an enlarged longitudinal sectional view of its main parts (!t1 side view, Fig. 3 is a plan view, Fig. 4 is a perspective view of the film holder alone, Fig. 5 is a partially cutaway perspective view of the film carriage, and FIG. 6 is a V in FIG. 2.
A sectional view taken along the line l-Vl, and FIG. 7 is a front view of the X-ray fluoroscopy table. 9... Film carriage 12... Carriage body 13... Film holder 32, 33... Intensifying screen 35... Film transport mechanism 42... Input rotating body 44... Drive rotating body A. ... ti shadow position B... Film transfer position Patent Dejijin Co., Ltd. Shima? 1! Factory agent

Claims (1)

[Claims] In a quick-shooting photographing device in which a film carriage is configured to be movable between a photographing position and a film transfer position, the film carriage is removably attached to a carriage body that moves between the photographing position and a film transfer position, and the carriage body. The film holder is equipped with an intensifying screen and a film transport mechanism, and when the film holder is attached to the carriage main body, a driving rotary body provided on the carriage main body and the film A quick-shot photographing device characterized in that the input rotating body of a film transport mechanism provided in a holder is connected in a transmission state.