KR870000633B1 - Cassetteless x-ray radiographic table - Google Patents

Abstract

Explains cassetteless x-ray perspective photosnap-shot. Especially, the snap-shot device with proper film transportation mechanism and small size of it is implemented. The advantage is the snap-shot device reduces the contact of transportation roller film guide and x- ray recorder. And transfer length is also reduced to prevent film distortion, locating upper and lower idle roller to one transportation roller at film holder. And to seperate input and output is needed to slope film holder contruction to hold the film at proper holder.

Description

Cacetel X-ray perspective

1 is a view showing a schematic configuration of a conventional Cacetel X-ray fluoroscope.

2 is a view for explaining the problem of the film conveying mechanism of the conventional rapid-firing apparatus.

3 to 8 are diagrams showing a schematic configuration of Embodiment 1 of the present invention.

9 to 13 are views for explaining an embodiment of a mechanism for driving the upper and lower frames of the holder shown in FIG.

14 is a view showing a schematic configuration of Embodiment 2 of the rapid firing apparatus of the present invention.

15 is a view showing a schematic configuration of Embodiment 3 of the rapid firing apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

9: supply magazine 10: unrecorded film

10a: unrecorded accumulation sheet 11: adsorption pad

18: photographed film 18a: photographed film accumulation sheet

20: driving roller 21: bringing children

22: holder 22a: upper frame

22b: front increase and decrease 22c: lower frame

22d: Back increment detection 22e: Upper frame guide

22f: lower frame guide 23: fixing pin

24: fixed frame 25: take out eye roller

26: film film guide plate 27: the upper cam

28: lower cam 27a, 28a: camp pole lower

27b, 28b: lever 27c, 28c: push rod

27d, 28d: pool roller 29, 30: axis

TECHNICAL FIELD The present invention relates to a Cacetel X-ray fluoroscopy stand, and more particularly, to a Cacetel X-ray fluoroscopy table having a fast-moving device having an appropriate film transfer mechanism.

Conventional case Catetel X-ray fluoroscopy table, for example, as shown in Figure 1, the top plate (10) guided longitudinally and horizontally on the table support frame (2) supported by the rotating material on the support (1) ( 3), the X-ray tube apparatus 5 on the upper side and the rapid firing apparatus 6 on the lower side, and the X-ray irradiated from the X-ray tube apparatus 5 is laid down on the top plate 3 to be inspected (4) It is configured to enter the X-ray television 8 through the intensifier wire 7 attached to the rapid firing apparatus 6 by passing through it, so that an X-ray image is obtained. The rapid firing apparatus 6 takes out the unphotographed film which stored many sheets one by one, and moves to the center of an X-ray irradiation point suitably by the operation switch operated by a technician, and obtains the X-ray photograph of the subject 4.

Here, in order to obtain an X-ray photograph, the film is sandwiched between the sensitized papers to be in close contact with each other to irradiate the X-ray, and then the adhesion is released to remove the photographed film between the sensitized papers and stored in the storage magazine by the film conveying roller. A mechanism to do it is necessary. FIG. 2 shows the outline structure and is a side view of the rapid firing apparatus 6 shown in FIG.

In FIG. 2, a plurality of non-photographic films 10 in the supply magazine 9 are stacked and placed on top of each other, and the uppermost 1 of the stack is formed by a suction pad 11 connected to a vacuum pump (not shown). Only the sheet is adsorbed, and is adsorbed by the adsorption pad 11 until the tip of the first conveyance roller 12 subsides, and is moved to a moving mechanism not shown. When it is detected that the tip of the film enters the first conveying roller 12, the first conveying roller 12 rotates by the conveying motor (not shown) to convey the film in the direction of the second conveying roller 13. The film is conveyed between the front sensitizer 14a and the white sensitizer 14b fixed to the film holder 14 via the second conveying roller, and the rear end of the conveying direction coincides with the ends of the sensitizers 14a, 14b. When one is detected, the conveyance motor stops, and the X-ray imaging preparation is completed by bringing the sensitizers 14a and 14b into close contact with the film.

In this state, the operator performs fluoroscopy and shoots a quick-speed shot properly during fluoroscopy. At this time, the film holder 14 ready for X-ray imaging is moved to the photographing position Q shown in FIG. After completion of photography, the film holder 14 is returned to the ready position P again. The film holder 14 returned to the preparation position P opens the close contact between the sensitizers 14a and 14b and the film, and the photographed and filled film in the second conveying roller 13 reverses the conveying motor. It removes from the film holder 14. The conveyed film is guided to the third conveying roller 15 and moves along the film guide 17 in the direction of the fourth conveying roller 16 without going out in the direction of the first conveying roller 12. The photographed peeled film 18 sent out from the fourth conveyance roller 16 is stacked and stored in the storage magazine 19 and is appropriately developed.

However, the above conventional technologies have the following problems.

(1) Since the 1st-4th conveyance rollers are needed, there are too many conveyance rollers.

(2) Since the second conveyance roller at the inlet of the film holder needs to be reversed, the control circuit becomes complicated.

(3) Since film guide is required for film transport, the film surface may be damaged during transport, and the dryer may expose the film by static marks due to static electricity due to static electricity. There is a risk of occurrence.

(4) Since the second conveying roller at the entrance of the film holder is used for both import and export, the unrecorded film cannot be imported unless the film has passed through the second conveying roller. The longer the time required, the longer the diagnosis and the less efficient it is.

For this reason, it is conceivable to increase the film conveying speed, but there is a problem described in the above (3), and there is a fear of occurrence of conveyance failure due to the fragility of the elasticity of the film and the like, leading to a decrease in reliability.

(5) Since the film guide and the conveying roller group are required, the dimension from the rear end of the film in the supply magazine to the rear end of the film in the film holder becomes long. In other words, the overall length of the rapid firing apparatus becomes longer and the weight and the like become larger. In addition, the production time is long enough for the assembly process, and the cost increases.

(6) A film ejector is required at the position of each conveying roller, and the control circuit becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a Cacetel X-ray fluoroscopy table having a good X-ray recording medium conveying mechanism which eliminates the above-mentioned drawbacks of the prior art, and which has a fast-moving device designed for miniaturization.

These and other objects and novel features of the invention are apparent from the description and the accompanying drawings of the present specification.

Brief description of the representative of the invention disclosed by the present application as follows.

That is, in the rapid firing apparatus, in order to reduce the film conveying distance and shorten the film conveying distance, and to avoid bending the film, the conveying roller and the film guide, which are in contact with the surface of the X-ray recording medium (hereinafter referred to simply as film), are made as small as possible. A conveying roller that carries in and out of the film holder is arranged with one driving roller and a flow roller (hereinafter referred to as an idler roller) above and below, separating the position of loading and unloading so that the film is fed into the roller at the position. The film holder is designed to be tilted.

The structure of this invention is demonstrated with an Example.

3 to 7 are diagrams showing a schematic configuration of Embodiment 1 of the rapid firing apparatus of the present invention, and those having a function equivalent to that of FIG. 2 are denoted by the same reference numerals, and repetition of the description thereof will be omitted.

3 to 7, reference numeral 20 denotes a driving roller (hereinafter referred to as a driving roller) for film transport, and an unphotographed film conveyed by the suction pad 11 in the supply magazine 9 ( It is for conveying 10) to the film holder 22. Reference numeral 21 is an inlet idler, and is installed at the top of the drive roller 20 so as to contact it. Reference numeral 22 is a film holder (hereinafter referred to as a holder), and an upper contact plate (hereinafter referred to simply as an upper frame) to which the front sensitizer 22b is attached (hereinafter referred to simply as the upper frame) 22a and a lower contact plate to which the white sensitizer 22d is attached. 22c of the following, and the edge part on the opposite side to the drive roller 20 is supported by the fixing frame 23 by the fixing frame 24 as a rotating material. As shown in FIG. 8, the drive rollers 20 are cut in such a manner that the drive rollers 20 can be arranged, as shown in FIG. Reference numeral 25 denotes a carrying idler, and is installed at the lower portion of the driving roller 20 so as to contact it. Reference numeral 26 denotes a film guide plate for guiding the photographed film to the storage magazine 19.

9 to 13 are views for explaining an embodiment of a mechanism for driving the upper and lower frames of the holder shown in FIG. 3, and FIG. 9 is a diagram showing the relationship between the phase and displacement of the upper cam and the lower cam. 10 is a view showing the shape of the upper cam and the lower cam having the phase and displacement shown in FIG. 9, and FIGS. 11 to 13 are schematic views of the upper and lower movable cam mechanisms. In Figs. 9 to 13, those having functions equivalent to those of Figs. 3 to 9 are denoted by the same reference numerals, and repeated description thereof will be omitted.

9 to 13, reference numeral 27 denotes the upper cam for moving the upper frame 22a of the holder 22, and lower frame 28 for moving the lower frame 22c of the holder 22. The cams each have a shape as shown in FIG. The upper cam 27 and the lower cam 28 are fixed in phase with the same axis 29, and are connected to the rotating shaft of a motor not shown. 27a and 28a are cam followers corresponding to the upper cam 27 and the lower cam 28, and are fixed to the levers 27b and 28b, respectively.

The levers 27b and 28b are pivotally supported by the shaft 30, and the cam followers 27a and (2) are radially displaced with rotation of the upper cam 27 and the lower cam 28. 28a) is to follow. (27c) and (28c) are push rods which are supported at one end of the levers (27b) and (28b), and swing with movement of the levers (27b) and (28b). It is comprised so that the upper frame guide 22e and the lower frame guide 22f may be pressed down by the follower 27d, 28d provided in the front-end | tip of 28c.

Next, the operation of the present embodiment will be described.

The unrecorded film, which is stacked and stored in a plurality of sheets in the supply magazine 9, is absorbed by only one sheet at the top of the stack by the adsorption pad 11, and the unrecorded film adsorbed onto the driving roller 20 and the loading idler 21 ( The suction pad 11 is moved until the tip of 10 is retracted, and the vacuum of the suction pad 11 is released when the unphotographed film 10 is depressed. The moved unphotographed film 10 is fixed to the front sensitizer 22b and the lower frame 22c fixed to the upper frame 22a of the holder 22 by a driving roller 20 which is driven by a motor. It is conveyed between the whitedensers 22d, which are then brought into close contact with each other as shown in FIG. Here, the contact means (not shown) can also be performed by mechanical crimping methods such as leaf springs and torsion springs. However, the method of vacuum adsorbing is effective and is effective in weight reduction.

회전시키면, 레버(27b), (28b)가 모두 축(30)을 중심으로 반시계 방향으로 회전함에 따라 푸쉬로우드(27c), (28c)가 내려가므로, 그 선단에 설치되어 있는 푸울로울러(27d), (28d)에 의해 상하틀(22a), (22c)이 모두 내려가게 된다.Next, the holder 22 observes the perspective image of the subject according to the ready position P for rapid firing in close contact, and turns on the rapid operating switch of the manipulator in a timely manner, so that the holder 22 is in the position P. Move quickly to the right in the direction, and are positioned at the center position Q of the X-ray irradiation point indicated by the two-dot chain line to take X-rays for imaging. When this shooting is finished, it moves to the left again. Here, the rapid shooting is finished, but when the holder 22 moves to the left again while wearing the photographed film 10, the bite is bitten by the driving roller 20 and the carrying idler 21 again. It stops once at the position of about 30 mm just before entering, and engages with the inclined drive part of the holder 22. As shown in FIG. That is, the foot rollers 27d and 28d of the inclined driving part are engaged with the upper frame guide 22e provided in the holder 22 and the lower frame guide 22f, respectively. As shown in FIG. 10, the holder cam 27, which is fixed to the shaft 29, and the cam followers 27a and 28a corresponding to the lower cam 28 are levers 27b, Since the levers 27b and 28b are fixed to the 28b, respectively, the levers 27b and 28b are oscillated following the radial displacement along with the rotation of the cam about the shaft 30 to push rods 27c and 28c. Moves downwards. As a result, the upper frame guide 22e and the lower frame guide 22f of the holder 22 engaged by the pullers 27d and 28d fixed to the ends of the push rods 27c and 28c are Pressed down. The holder 22 temporarily stops at the position shown in FIG. That is, the shaft 29 is rotated about 135 by the motor in the counterclockwise direction (the arrow A direction shown in FIG. 11).

When it rotates, since the lever 27b, 28b rotates counterclockwise about the axis | shaft 30, the push-wheels 27c, 28c will descend | fall, and the pull roller installed in the front end ( The upper and lower frames 22a and 22c are both lowered by 27d) and 28d.

회전시켜 정지하면, 아래틀 캠(28)의 반경방향변위가 없기 때문에, 아래틀(22c)은 이동하지 않고 윗틀(22a)만 윗쪽으로 이동해서 증감지(22b), (22d)와 촬영필 필름(18)의 밀착이 개방되어 제13도에 나타낸 상태로 된다. 이 상태에 있어서, 구동로울러(20)를 제6도에 나타낸 것처럼 구동로울러(20)와 반출 아이들로울러(25)에 의해 촬영필 필름(18)이 반출되어서 수납매거진(19)에 수납된다. 미촬영필름(10)이 구동로울러(20)와 반입 아이들로울러(21)에 물려 들어가며, 그 순간에 흡착패드(11)의 진공이 해제되어 반입된다. 즉 호울더(22)에서 촬영필 필름(18)을 배출하는 조작과 미촬영필름(10)을 호울더(22)에 장전하는 조작을 동시에 하게 된다.Here, when the holder 22 is moved to the left again, the photographed film 18 is fed into the driving roller 20 and the transport idler 25, and at the position shown in FIG. 12 (or FIG. 5). The movement of the holder 22 is stopped. At this position again, the shaft 29 is rotated approximately 90 degrees in the counterclockwise direction (arrow A shown in FIG. 11).

When rotating and stopping, since there is no radial displacement of the lower frame cam 28, the lower frame 22c does not move, and only the upper frame 22a is moved upward, so that the sensitizers 22b, 22d and the photographed film ( The close contact of 18) is opened to the state shown in FIG. In this state, the photographed film 18 is taken out and stored in the storage magazine 19 by the drive roller 20 and the carrying idle roller 25 as shown in FIG. The unrecorded film 10 is bitten into the driving roller 20 and the carrying idle roller 21, and at that moment, the vacuum of the suction pad 11 is released and carried in. That is, the operation of discharging the photographed film 18 from the holder 22 and the operation of loading the unphotographed film 10 into the holder 22 are performed at the same time.

회전시키면 아래틀(22c)의 푸쉬로드(28c)가 윗쪽으로 이동하여 제10도처럼 증감지(22b), (22d)와 미촬영필름(10)의 밀착 가능상태로 되어 진공펌프(도시생략)에 의해 양자를 밀착시켜서 다음의 속사촬영준비가 완료한다. 이후 상기 동작을 반복한다.In this way, while taking out the photographed film 18 from the holder 22, the unphotographed film 10 is carried in, and when this carry-in is completed, the drive roller 20 is stopped. Then, the shaft 29 is rotated approximately 135 in the counterclockwise direction (arrow direction).

When it is rotated, the push rod 28c of the lower frame 22c moves upward, and as shown in FIG. 10, the sensitizers 22b, 22d and the unphotographed film 10 can be brought into close contact with each other to form a vacuum pump (not shown). By bringing them together, the next quick shooting preparation is completed. Thereafter, the operation is repeated.

When the said unphotographed film 10 is carried in to the predetermined position in the holder 22, it confirms by detecting the last end of the unphotographed film 10 with respect to a conveyance direction. In addition, even if the film of the size smaller than the sensitizers 22b and 22d in the holder 22 is necessarily matched with the ends of the sensitizers 22b and 22d, the storage magazine of many sizes and If a drawer is installed, a multi-channel caseless device is also possible.

As mentioned above, the holder which consists of an upper frame, a lower frame, and a fixed frame can have all the functions of the conventional film conveyance part.

14 is a view showing a schematic configuration of a second embodiment of the rapid firing apparatus of the present invention, and those having functions equivalent to those of FIGS. 1 and 3 are denoted by the same reference numerals, and the description thereof will not be repeated.

In the second embodiment, the X-ray tube holder 5 is arranged on the upper side of the top plate 3 on which the subject 4 is laid down and supported, and the X-ray tube length 5 is disposed below the X-ray tube apparatus. The light penetrates the object 4, enters the X-ray television 8 via the image intensity wire 7 attached to the rapid firing apparatus 6, and is configured to obtain an X-ray image. The first embodiment shown in FIG. 3 is applied to an under-table tube type X-ray perspective table. In other words, if the fast-moving device having the film conveying mechanism of Example 1 is used as it is, the inclination driving mechanism of the holder and the space for the movement of the holder are required in the portion B shown in FIG. If a drive mechanism is devised, it can arrange | position to the upper side of a holder, but the space for holder movement cannot be done in any way. The portion B cannot extend in the dimensions of the storage magazine to close the object and the film and to move the space of the object 4. Therefore, the B subspace can be provided by moving the holder 22 upward, and can function as shown in FIGS. 3 to 13.

Next, the operation of the second embodiment will be described.

In contrast with the over table tubing method of the first embodiment, the frame of the holder 22 on the X-ray tube apparatus 5 side will be described as the upper frame 22a, and the opposite side will be described below. That is, the side where X-rays are irradiated for the first time is the upper frame or the front.

FIG. 14 shows that the holder 22 irradiates X-rays at the center position Q of the X-ray irradiation point indicated by the two-dashed line portion, and the photographing is completed, and then returns to the rapid shooting photographing preparation position P. FIG.

In FIG. 14, the photographed film 18 penetrates into the drive roller 20 and the carry-out children roller 25. As shown in FIG. In this state, the lower frame 22c is moved upward with the cap mechanism described above to release the close contact between the sensitizers 22b, 22d and the photographed film 18, and the driving roller 20 is rotated clockwise. When rotated, the photographed film 18 is stored in the storage magazine 19. At the same time, the unphotographed film 10 separated from the supply magazine 9 by being separated by one sheet by the suction pad 11 is bitten into the driving roller 20 and the loading idler 21 and driven clockwise. 20 is rotated and brought into the holder 22. When the unrecorded film 10 is set in the holder 22, the driving roller 20 is stopped, and the upper frame 22a is moved to the position indicated by the dashed-dotted line, so that the sensitizers 22b, 22d and the undetected film 10 are not included. After closely contacting with the photographing film 10, the holder 22 is returned to the position indicated by the solid line, and the rapid shooting is ready. Thereafter, the operation is repeated.

FIG. 15 is a view showing a schematic configuration of Embodiment 3 of a rapid firing apparatus of the present invention, and those having a function equivalent to that of FIG. 14 are denoted by the same reference numerals, and the description thereof will not be repeated.

In the third embodiment, as shown in Fig. 15, the transfer mechanism of the sheet (for example, the accumulation sheet) for acquiring an image without using a sensitizer, for example, accumulating and recording an X-ray image, The film transport mechanism is applied.

That is, as in the second embodiment, one sheet is taken out by the suction pad 11 from the supply magazine 9 in which a large number of X-ray unirradiated accumulation sheets 10a are accumulated and stored, and the driving roller 20 and the loading idler ( 21), the upper frame 22a is brought into the holder with the lower frame 22c tilted upward, and then the lower frame 22c is moved downward to move the unframed storage sheet 10a. If you insert, you are ready for quick shooting.

After the photographing is finished, the upper frame 22a and the lower frame 22c are tilted upwards so that the photographing and accumulating sheet 18a is penetrated into the driving roller 20 and the ejecting idler 25, and the upper frame 22a. ), The holding roller 22c is released, and the holding roller 20 is rotated counterclockwise. Then, the conveying rollers 25a and 25b are made to pass through the storage magazine 19. It is stored. Thereafter, the operation is repeated.

As described in Examples 1, 2, and 3, by moving the upper and lower frames of the holder, the conveying path can be straightened, so that the conveying system prevents image quality deterioration such as scratching the surface even with low availability. Can be obtained. In addition, the film or sheet conveying path can be shortened by reducing the conveying roller.

Although the operation direction of the holder is reversed by the over table tubing method and the undertable tubing method, this is also changed by the arrangement of the magazine and the holder. It is not possible to decide.

As described above, according to the novel technical means disclosed by the present application, the following effects can be obtained.

(1) Since the film or the like was conveyed without almost bending, the occurrence of scratches or the like on the surface can be prevented.

(2) Since the number of guide rollers is reduced, it is possible to prevent the occurrence of accumulation, static microphone, etc. on the surface of the film or the like.

(3) Since the conveyance distance of films etc. was shortened, it can convey in about 1/2 time compared with the conventional apparatus.

(4) The shooting interval can be shortened since the film holder and the film are exchanged at the same time.

(5) Since the conveyance roller group and the film guide are unnecessary, the entire rapid firing apparatus can be miniaturized and the cost can be reduced.

(6) Since the transport drive rollers such as film are rotated in only one direction, the control mechanism can be simplified.

(7) Since position detection such as a film is required to detect only one predetermined place such as a film, position detection control mechanisms such as a film can be simplified.

It should be understood that the present invention is not limited to the above embodiments and can be modified in various ways without departing from the spirit of the invention.

Claims (1)

An X-ray recording medium holder consisting of an upper contact plate and a lower contact plate holding an X-ray recording medium, and one end of each of the upper contact plate and the lower contact plate as supporting the holder. A fixing frame for rotatably rotating the shaft, a holder driving means for tilting the upper contact plate and the lower contact plate simultaneously or separately with respect to the fixing frame, the fixing frame and the unrecorded X-ray recording medium accommodating portion, and It consists of a drive roller provided between the photographed X-ray recording medium storage portion and a flow roller disposed so as to face the roller and face the roller, and to bring the unrecorded recording medium into the holder on the fixed frame, and A Case-Telex X-ray observatory, characterized in that it has a carrying-in / out means for carrying out a recorded recording medium in a ulder.

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