JPH04109756U - Adhering device for sheet photosensitive material - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent damage to the back plate by smoothly separating the front plate and back plate when the close contact between the front plate and the back plate is released in a close contact device that holds a sheet-like photosensitive material in close contact with each other. [Structure] The contact device 19 is provided with a front plate 8 and a back plate 9 that face each other, and a drive mechanism 18 is provided on the back plate 9 and includes a press link 15, a motor 22, and a crank disc 13 connected thereto. is connected. The motor 22 of this drive mechanism 18 is rotated to move the back plate 9 via the pressing link 15 to hold the sheet-like photosensitive material in close contact between the back plate 9 and the front plate 8, and the motor 22 is rotated in the reverse direction to maintain the close contact. It will be canceled. When this close contact is released, the motor 22 is intermittently driven and the motor
By providing a rotation stop time of 22, the time for air to flow between the front plate 8 and the back plate 9 is ensured, the back plates are separated, and overload on the back plate 9 is prevented.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses a front plate and a back plate to adhere the sheet-like photosensitive material uniformly over the entire surface. The present invention relates to a drive means for a close contact device that holds the device.

0002

[Conventional technology]

A close contact device for sheet-like photosensitive material is used for close contact with X-ray film used in This will be explained using a mounting device as an example.

0003 In recent X-ray imaging devices, a large number of sheets are stored in the film changer installed in the device. Load a magazine containing X-ray films and shoot each X-ray film one by one. Transport the photographed X-ray film to the stage and connect it to the film changer. Either transport it to an automatic developing machine and develop it, or store it in a receive magazine. I plan to develop it later. And the above to get good image quality when shooting The X-ray film is placed flat between the front plate and back plate that make up the photographing stage. The entire surface is held uniformly in close contact with the entire surface by eliminating air spaces to maintain its surface properties. stop The driving means for bringing the front plate and the back plate into contact with each other is connected to the front plate. Press the end of the bracket provided on the back side of the back plate facing the end of the link lever. The other end of the pressing link lever has a pin joint that can be rotated at one end, and the other end of the pressing link lever is A rotatable pin joint is established with a pin placed at the center position, and the disk is driven by a motor. It consists of The motor of the drive mechanism rotates during photographing. Pressing the back plate against the front plate via the pressing link lever When the ray film is held in close contact and shooting is completed, the motor of the drive mechanism is reversed. Rotate so that the back plate that is in close contact with the pressing link is pulled apart at once. I have to.

0004 Note that technical means related to these contact devices have already been disclosed in Japanese Patent Application Laid-Open No. 59-151148 and It is well known from Japanese Patent Application Laid-Open No. 58-55922.

[0005]

[Problem that the idea aims to solve]

However, the X-ray sandwiched between the front plate and the back plate The entire surface of the film is adhered with no air space, so when the adhesion is released, the back It takes a lot of force to pull the board apart.

[0006] As in the conventional method, a tensile force is applied near the center of the back plate to try to pull it apart. and the connection between the back plate and the bracket because there is no air inflow from the surrounding area. Concentrated loads are applied to these parts, often causing damage to the back plate and causing malfunctions.

[0007] In addition, if air is introduced momentarily and suddenly during the process of separating the back plate, the front Impact force may act on the motor and the press link system, causing wear and damage. It had become.

[0008] This invention solves these problems and allows the X-ray film to be sandwiched between the sheets in close contact with each other. The front plate and back plate can be smoothly separated from each other even with a relatively low torque motor. The objective of the project is to provide a device for adhering sheet-like photosensitive materials that can be pressed together. Ru.

[0009]

[Means to solve the problem]

The purpose of this is to have a fixed front plate facing each other that can be opened and closed, and a back plate that is movable. In the adhering device for sandwiching a sheet-like photosensitive material between the two plates, the fluorocarbon A drive means for changing the position of the back plate so as to be able to approach and separate from the top plate; and a drive means for the drive means. When the contact device is released from the contact device having the detection means for detecting the moving position, the driving means is interrupted. The front plate and the back plate are separated from each other by non-driving. This is achieved by a device that adheres the sheet-like photosensitive material.

0010

【Example】

An embodiment of the present invention is shown in a diagram showing the driving process of the driving mechanism provided in the close contact device shown in FIG. 1. A side view showing the configuration of the rough and close contact device in Figure 2 and the configuration of the film changer in Figure 3 This will be explained with reference to a side sectional view showing the structure of the X-ray imaging apparatus and a schematic diagram showing the configuration of the X-ray imaging apparatus shown in FIG. However, the present invention is not limited to this embodiment. And the sheet of this invention An example of a device for adhering photosensitive materials to a film changer installed in an X-ray imaging device An example of the X-ray film adhesion device will be explained below.

[0011] As shown in FIG. 4, the X-ray imaging apparatus 1 is used to detect, for example, a subject 3 whose chest is to be imaged. An X-ray generator 2 that irradiates X-rays from behind and an X-ray generator 2 that is set at the front chest position of the subject 3. A film changer 4 that holds the film changer 4 and a lift that can be raised and lowered. It consists of a landing platform 5.

0012 Then, as shown in Figure 3, the film changer 4 is placed around the The outer shell is made up of a housing 4a that encloses the It is installed in the loading section of the supply magazine 6a in which the program 6 is stored and in the upper part of the housing 4a. A first conveying means for conveying the X-ray film 6 to the front plate 8 of the photographing section. A group of a pair of supply conveying rollers 7, a positioning plate 10 of the X-ray film 6, and the frame A back plate 9 that presses and holds the X-ray film 6 on the front plate 8 and a front plate that has been photographed. A pair of take-out rollers 11 for taking out the X-ray film 6 and a pair of take-out rollers 11 provided at the bottom of the housing 4a Conveyance unit 12, which is the second conveyance means when conveying directly to an automatic developing machine, and photographing It is also installed in common with the receive magazine 20 that stores the previously-mentioned X-ray film 6. The loading section 21 includes a loading section 21 and a loading section 21. Note that FIG. 3 shows the case where the transport unit 12 is It shows the state in which it has been worn.

[0013] Then, the supply magazine 20 is placed in a predetermined position of the film changer 4. When loaded, it faces the 6 sides of the X-ray film stored in the magazine 5. The suction cup 6b provided in the The supply is supplied to the pair of supply conveyance rollers 7 located on the opposite side and is conveyed along a predetermined conveyance path. The fed X-ray film 6 is placed near the left center of the film changer 4. A front plate 8 is provided, and the front plate 8 is located on the right side facing the front plate 8 and is open at the top. It is inserted between the back plate 9 and the back plate 9.

[0014] The back plate 9 is rotatable about its lower end, and the back plate 9 is rotatable about its lower end. It has a structure that allows it to move in the direction of the control plate 8. Further, the front plate 8 and the The back plate 9 is large enough to cover the maximum size of the existing X-ray film 6. It has become a mystery. Further, on the opposing surfaces of the front plate 8 and the back plate 9, Photosensitive paper sheets 8a and 9a are attached. Then, the transported X-ray film 6 is a positioning strut provided at the lower ends of the front plate 8 and the back plate 9. by the upper 10 and guides (not shown) provided on both sides of the front plate 8. After being positioned, the back plate 9 is rotated counterclockwise as shown by the arrow. Move in the direction of the front plate 8 surface and press the X-ray film 6 with a predetermined pressing force. Press it against the 8 sides of the front plate.

[0015] Then, X-rays are irradiated by the X-ray generator 2 to a predetermined part of the subject 3. The X-ray film 6 that has been photographed is released from the pressure of the back plate 9. The stopper 10 moves to the left or right and the lower end of the X-ray film 6 is released. Then, it is dropped between a pair of take-out rollers 11 provided below.

[0016] The photographed X-ray film 6 is then held and rotated by the pair of take-out rollers 11. The film is conveyed to the conveyance unit 12 by a roller and the film chain is conveyed to the conveyance unit 12 as shown in the figure. The filter shown in the direction of the arrow follows a predetermined conveyance path provided across the jar 4. The film is transported into an automatic developing machine (not shown) adjacent to the right side of the changer. this In this way, the X-ray film 6 in the supply magazine 6a is photographed one after another. The film is then transported to the automatic developing machine and developed.

[0017] In addition, if the automatic developing machine breaks down or you are taking a limited number of photographs, please be sure to Take out the feeding unit 12 from the film changer 4 and insert it into the same loading section 21. Load the receive magazine 20 and store the photographed X-ray film 6. I have to.

[0018] The present invention eliminates the above-mentioned problems and provides the front plate 8 and the back plate in close contact with each other. 9 are released from close contact with each other by the following drive mechanism.

[0019] As shown in FIG. 2, when the contact device 19 is photographed, the front plate 8 and the back plate 9 are The X-ray film 6 is held tightly between the two plates, and after the shooting is completed, the two plates 8 and 9 are separated. The drive mechanism is constructed as follows. As shown in the figure, the central part of the back plate 9 A motor 22 is provided at an appropriate interval on the right side of the vicinity, and is fitted onto the main shaft of the motor 22. One end rotates on a connecting pin 13a which is installed eccentrically with respect to the main shaft on the crank disk 13 surface. The other end of the press link lever 15 which is movably connected and the central part of the back plate 9 are connected together. The end of the bracket 11 that is physically attached is rotatably connected to the end of the bracket 11 by a connecting pin 14. A drive mechanism 18 is configured by the press link lever 15. and said crank The amount of eccentricity between the connecting pin 13a implanted in the disc 13 and the main shaft of the motor 22 is approximately This is the operating stroke of the press link lever 15. Figure 2 shows the This shows a state in which the camera is waiting for photographing with the camera 6 held in close contact with the camera.

[0020] The drive mechanism 18 has the front plate 8 and the back plate 9 in close contact with each other. The back plate 9 is released from close contact with the set position sensor 22a that detects the position at which the setting is completed. A home position detection sensor 22b is set to detect when the I'm being kicked. Each of the sensors 22a, 22b is connected to the front as shown in the figure. The home position is placed on the front side of the motor 22 at a predetermined position outside the crank disc 13. The pressing link levers are arranged almost symmetrically across the crank disc 13 and the engine detection sensor 22a. The set position sensor 22b is provided at a position that operates with a predetermined stroke of -15. It is. For example, a protrusion 13b provided on the circumferential surface of the crank disc 13 It moves with the rotation of the disc disk 13 and reaches the position of each of the sensors 22a, 22b. Then, the home position and set position of the back plate 9 are detected and the motor is -22 is now suspended.

[0021] FIG. 1 is a diagram showing the driving process of the motor 22 that operates the back plate 9. The contents of each symbol shown in the graph are roughly shown as the driving procedure of the motor 22 and the motor. The operation of the back plate 9 in conjunction with 22 will be explained.

The vertical axis represents the driving state of the motor 22, and the horizontal axis represents the driving procedure of the motor 22. m ₁ in the upper row of the vertical axis is the forward rotation of the motor 22 that moves the back plate 9 and the front board 8, m ₂ in the middle row is the stoppage of the motor 22, and m ₃ in the lower row is the forward rotation of the motor 22 that moves in the direction of the back plate 9 and the front plate ₈ . Showing reverse rotation of motor 22. Further, U shown on the horizontal axis is the entire operating process of the adhesion device 19 (or cross plate 9), and R is the adhesion release process.

A, A ₁ is the home position of the back plate 9 (when contact is released), and S ₁ is a set in which the motor 22 rotates forward to bring the back plate 9 in the home position A into close contact with the front plate 8. E indicates the photographing process. Then, R ₁ in which the motor 22 rotates in reverse, indicated by m ₃ , is the first intermittent motor drive step, R ₂ is the first motor stop step, R ₃ is the second intermittent motor drive step, R ₄ In the second motor stop step, the back plate 9 returns to the home position A ₁ (A).

[0024] The operation of the drive mechanism 18 set in this way will be explained next.

After the back plate 9 is located at the home position A and the X-ray film 6 is inserted and positioned between the front plate 8 and the motor 22 indicated by m ₁ starts rotating, the back plate 9 is positioned at the home position A. When the plate 9 moves through the steps indicated by _S1 via the pressing link 17 and comes into close contact with the front plate 8 and reaches a predetermined set position, the position is detected by the set sensor 22b and the motor 22, indicated by _m2 , is stopped. Then, the setting of the back plate 9 is completed. Then, when the X-ray film 6 is irradiated with X-rays and the photographing process E is completed, the motor 22 indicated by m ₃ starts to rotate in reverse, and after the first intermittent drive of R ₁ is performed, R ₂ It stops for a predetermined period of time (approximately 2 to 3 seconds).

[0026] During this first intermittent driving, an effect is exerted to separate the back plate 9 that is in close contact with the front plate 8, and the back plate 9 receives a tensile force while the motor 22 of _R2 is stopped. Air begins to flow in through a small gap created around the front plate 8 and the front plate 8. Then, the motor 22 starts to rotate in the reverse direction again, and at the point indicated by _R3 , a second intermittent drive step is performed, and after the entire surface of the back plate 9 is separated from the front plate 8, the _R4 step is reached and the home position is reached. Detected by the sensor 22a, the motor 22 is stopped and the back plate 9 returns to the home position A ₁ (A). In this way, when the close contact is released, the motor 22 is driven intermittently and a step of stopping the motor 22 is provided to secure the time for air to flow into the front plate 8 and the back plate 9, so that both plates 8 can be moved extremely smoothly. , 9 is released. Therefore, there is no overload on the back plate 9, the press link 15 system, and the motor 22, and damage to them is completely avoided.

[0027] Note that the drive mechanism 18 is connected not only to the central portion of the back plate 9 but also to the peripheral portion thereof. There is absolutely no problem with making it work.

[0028]

[Effect of the idea]

The close contact between the front plate and the back plate is released by the intermittent drive of the motor according to this invention. This prevents overloading the back plate, the drive mechanism's press link system, and the motor. These changes allow the two plates to be separated extremely smoothly without any load being applied. Failure of the adhesion device due to shape or breakage was completely avoided.

[Brief explanation of drawings]

FIG. 1 is a graph showing a driving process of a driving mechanism provided in a contact device according to an embodiment of the present invention. FIG. 2 is a side view showing the configuration of the contact device. FIG. 3 is a side sectional view showing the structure of the film changer. FIG. 4 is a schematic diagram showing the configuration of the X-ray imaging apparatus.

[Explanation of symbols]

1...X-ray imaging device 4...Film changer 6...X-ray film 8...Front plate 9...Back plate 11...Bracket 13...Crank disk 13a, 14...Connecting pin 13b...Protrusion 15...Press link lever 18...Drive mechanism 19 …Adherence device 22…Motor 22a…Home position detection sensor 22b…Set detection sensor R ₁ …First motor intermittent drive process R ₂ …First motor stop process R ₃ …Second motor intermittent drive process R ₄ ...Second motor stop process _S1 ...Set process

Claims (1)

[Scope of utility model registration request] Claims: 1. A close contact device which has a fixed front plate and a movable back plate facing each other so as to be openable and closable, and which holds a sheet-like photosensitive material between the two plates, which is capable of coming into contact with and separating from the front plate. The driving means is intermittently driven to separate the front plate and the back plate when a close contact is released from a close contact device having a drive means for changing the position of the back plate and a detection means for detecting the drive position of the drive means. A device for adhering sheet-like photosensitive materials.