JPS63178218A - Data imprinting device for roentgen film cassette - Google Patents

Abstract

PURPOSE:To execute insert-photographing of a data by decreasing a frictional force at the time of moving a small cover and opening and closing smoothly the small cover, by constituting the titled device so that driving a pin engaged to a small hole of the small cover at the time of opening and closing the small cover can be divided into the vertical direction and the horizontal direction and can be executed separately. CONSTITUTION:A cassette (a) is inserted into an air-gap of a substrate 17 of a casing, and when it is held in a normal position, a microswitch senses it and operates a solenoid, and pushes up a roller 46 by turning a forked lever 45. Subsequently, a pin 50 is allowed to descend and pass through a small hole 9 of a small cover of the cassette and the lock by a plate spring 11 is released, and next, a shutter plate is brought to a reciprocating motion by allowing a crank 31 to execute one rotation by a motor 30, and the small cover is opened and closed. In such a way, insertion into the small hole 9 of the small cover of the cassette, of the pin 50, and pressing by the plate spring, and opening and closing of the small cover through the pin can be executed independently, respectively, therefore, opening and closing can be executed smoothly without interposing an unnecessary frictional force.

Description

[Detailed Description of the Invention] A. Purpose of the Invention (Field of Industrial Application) This invention provides for an X-ray film (hereinafter simply referred to as a film) placed in a cassette for X-ray photography to be stamped with a patient's consultation number, date and time, etc. This invention can be used as a device for imprinting data.

(Prior Art) When taking X-rays for diagnosis, etc., the film is placed in a cassette.

This direction is as shown schematically in FIG.

A lid 3 is attached to a flat box-shaped main body 1 using a hinge 2, and a main body 1 is assembled.
It is designed to prevent light from entering the lid, and the lid is opened by pushing one handle 4 with a finger and retracting a claw that elastically projects from the lid and engages with the main body 1.

In one corner of the M3, there is an exposure window 6 equipped with a small lid 5 that blocks light, and when the small lid 5 is opened in a dark room and the necessary data is written - the image of the card is made incident on the exposure window 6. Data is imprinted on one corner of the film.

The structure of this small lid 5 is shown in FIG. 9 (A-A sectional view in FIG. 8).
, as shown in FIG. 10 (BB sectional view in FIG. 9).

A rectangular dish-shaped small lid guide 7 that is larger than the exposure window 6 is attached to the inner surface of M3 (bottom surface in FIGS. 9 and 10), and the same small lid guide 7 is attached to the lower surface of the small lid guide 7 below the exposure window 6 of M3. A large opening 8 is opened. Between the lid 3 and the guide 7, there are 2
A small hole 9 is bored at the end of the portion 5a into which the small lid 5 consisting of the portions 5a and 5b is slidably inserted in the left-right direction in FIG. A leaf spring 11 is provided which is fixed to either side of the width of the small lid guide 5a and whose opposite end is engaged with a notch 10 formed in the edge of the small lid guide 7. The leaf spring 11 has a locking action to prevent the small lid 5 from opening. An elastic light shielding piece 12 is attached between the leaf spring 11 and the lower part of the small hole 9. Then, by inserting a pin through the small hole 9 and pushing down the leaf spring 11 to remove it from the notch 10, the small lid part 5a can be moved to the left in FIG. When the exposure window 6 is brought into contact with the exposure window 6, the exposure window 6 can be fully opened by moving both the sections 5a and 5b to the left, so that data can be imprinted on the film through the exposure window 6 and the opening 8.

When the portion 5a of the small lid is moved to the right in FIG. 8 by a pin hooked on the small hole 9, the portion 5a pulls out the portion 5b and the exposure window 6 is closed.

In conventional data imprinting devices, a small lid is opened by pushing a cassette into the device to imprint data, and the small lid is closed when the cassette is pulled out of the device.

The mechanism for opening and closing the small cover provided in the data imprinting device rotates the pin 13 in a vertical plane about the horizontal axis 14, as shown schematically in FIG. The assembly and the movement of the small lid portion 5a are made to occur at the same time.

(Problem to be Solved by the Invention) Rotating the pin 13 to engage the pin in the small hole 9 and move the small lid portion 5a at the same time causes the leaf spring 11 to move into the notch lO. Since it is lowered while being pressed against the side surface, and a force is applied to the small lid part 5a to push it downward, the frictional resistance between it and the small lid guide 7 increases, making it possible to open and close the small lid smoothly. Moreover, since the shape and size of the small hole 9 had to be delicately adjusted, it was felt that there were defects in manufacturing and use.

Structure of the Invention (Means for Solving Problems) This invention opens and closes an exposure window (6) for data imprinting by moving along a small lid guide (7), and when closed, a leaf spring (1
An X-ray film in which data is imprinted through an exposure window (6) onto the X-ray film stored in a cassette (a) having a small lid (5) which is locked by engaging 1) with a notch in a small lid guide (7). In the data imprinting device for cassettes, there is a substrate (17) with a gap into which the corner of the cassette (a) can be inserted, a top plate (18) with a window on which a card (b) with data written is placed, and a side plate ( 19) to form a casing (22), and a partition plate (20) fitted with a lens (24) divides the inside of the casing into a lower chamber (21) and an upper chamber (
22), the upper chamber (22) is equipped with a lamp (23), and the lower chamber (21) is used to open and close the small lid (5) of the cassette (a) inserted into the board (17), and to open and close the small lid (5) of the cassette (a) inserted into the board (17). It is composed of a mechanism that allows the light that has passed through the lens (24) to enter the exposure hole (26), and this mechanism is reciprocated along a fixed guide rod (29) by a motor (30) via a crank mechanism. A shutter plate (2) with an exposure window (6) that can be moved
8), and a pin (50) and roller (46) inserted into the small hole (9) of the small lid (5) of the cassette at both ends.
A lever (49) that can pull up the end with the pin (50) with a spring (53) is attached to the lever (28).
It is pivoted by a horizontal shaft (48) to a side plate (47) connected to Push up and fix the lever (49) by placing it on the idle rail (54)
The pin (50) is made to be unrotatable and the pin (50) is lowered to pass through the small hole (9) in the small lid and the plate spring (11) provided below the small lid.
The above-mentioned problems have been solved by providing a data imprinting device for an X-ray film cassette, which is characterized by comprising a small lid opening/closing device for releasing the lock of the small lid by pressing .

(Function) In order to open and close the small lid, the pin that engages with the small hole in the small lid is driven separately in the vertical and horizontal directions, so unnecessary frictional force is not intervened during the movement of the small lid. without letting
Data can be imprinted by opening and closing the small lid smoothly.

(Example) Figs. 1 to 3 schematically show a data imprinting device for an X-ray film cassette according to the present invention, and Fig. 1 shows C in Fig. 2.
-C is a side view showing the cross section, FIG. 2 is a plan view showing the D-D cross section in FIG. 1, and FIG. 3 is a cross-sectional view taken along the E-E line in FIG.

The device casing 16 is connected to the substrate 17. A dark box is formed by surrounding the upper plate 18 with side plates 19, and the inside is divided into a lower chamber 21 and an upper chamber 22 by a partition plate 20.

The lower chamber 21 houses a mechanism for opening and closing the small lid 5 of the cassette a for exposure, and the upper chamber 22 serves as a lamp chamber for data imprinting.

First, the upper chamber 22, which is a lamp chamber, will be described. A lamp 23 is placed on the side of a partition plate 20, and a lens 24 is attached to pass through the center of the partition plate.

A square hole 15 is bored in the center of the upper plate 18, and a card b with data written thereon is inserted through the side gap and supported by the edge of the square hole 15, as shown in FIG. The image of card b illuminated obliquely from below by a lamp 23 is focused by a lens 24 onto the film surface of a cassette inserted into the lower chamber.

The small lid opening/closing device for the cassette stored in the lower chamber 21 is the fourth
It is configured as shown in Figure 7. Fig. 4 is a plan view showing the device that drives the shutter plate, Fig. 5 is a front view of this, Fig. 6 is a plan view showing the device that unlocks and opens and closes the small lid of the cassette, and Fig. 7 FIG. 6 is a sectional view taken along line FF in FIG. 6;

(a) First, a device for driving a shutter plate will be explained with reference to FIGS.

As shown in FIGS. 1 to 3, a gap is formed in the substrate 17, into which the corner of the cassette a with the exposure window is inserted from the side, and the cassette hits the front and side walls of this gap. When it stops at a certain position, the exposure window 6. is closed with a small lid 5.
The opening 8 overlaps the window 25 on the top surface of the substrate.

An exposure hole 26 is provided above the window 25, and a sliding piece 27 is provided.
A shutter plate 28 with the attached shutter plate 28 is movably attached. That is, the sliding piece 27 is slidably fitted into a guide rod 29 fixed to the base plate 17, and a connecting rod 32 is driven by a motor 30 provided in the lower chamber 21 via a crank 31.
is connected to the shutter plate 28 via the pin 33, so when the crank 31 is rotated by the motor 30, the shutter plate 28 reciprocates in the left-right direction in FIGS. 4 and 5 along the guide rod 29.

A cover plate 35 is provided above the shutter plate 28, which engages on both sides in guides 34, 34 and slides along these guides.

One end of a first lever 37 pivotally connected to the side protrusion of the shutter plate 28 by a shaft 36 is connected to the cover plate 35 by a shaft 38.
It is pivoted to. Two stoppers 39 and 40 are fixed to the base plate 17 on the left and right sides of the lever 37.

Cover plate 35, first lever 37, stopper 39.40
etc., the exposure window 26 is opened when the shutter plate 28 is in the right direction,
When moving to the left, it acts to close the exposure window.

With this structure, the cassette a is inserted into the gap in the substrate, the exposure window 6 is aligned with the window 25 in the substrate, and the motor 2 is
When the crank 31 is rotated once by 0, the shutter plate 2
8 moves to the right from the state shown in FIG. 4, and then moves to the left again to return to the original state. As a result, the exposure hole 26 of the shutter plate moves back and forth over the exposure window 6 of the cassette. Therefore, if the small lid 5 of the cassette is opened by the mechanism described later and the image of the card b is projected from the lens 24, the data of the card will be imaged on the film surface.

When the shutter plate 28 moves to the right, the cover plate 35 does not close the exposure hole 26 as shown in FIG. The cover plate 35 is rotated to the right and moved to the right to close the exposure hole 26. Therefore, when the shutter plate 28 moves to the left, the exposure window 26 is closed. When the shutter plate 28 reaches the end of its leftward movement, the lever 37 collides with the left stopper 39 to rotate the lever 37 to the left, causing the cover plate to move to the left and opening the exposure window 26 again.

(b) Figures 6 and 7 show a device for opening and closing the small lid 5 of the cassette.

When the cassette a is pushed into the gap in the board 17 and set in the correct position, two microswitches (not shown) that come into contact with the front and side surfaces of the cassette are closed.
The solenoid 41 placed in the lower chamber 21 is energized, and the other end of the second lever 43, whose one end is pivotally connected to the board via the shaft 42, is drawn toward the solenoid. As a result, the lower side 45a of the two-pronged lever 45, which is pivotally supported by the horizontal shaft 44, is pushed to the right by the lever 43, and the upper side 45b pushes up the roller 46. The roller 46 is pivotally connected to the side surface of the left end of a third lever 49 which is pivotally connected by a horizontal shaft 48 to a side plate 47 connected to the shutter plate 28. A pin 50 is attached to a bracket at the right end of the lever 49. ) 51.

The pin 50 is damped from contact with the leaf spring 11 by a spring 52. A tension spring 53 stretched between the lever 49 and the side plate 47 applies elasticity to the right end of the lever 49 to lift the right end. Reference numeral 54 denotes a guide rail coupled to the substrate 17, with which the roller 46 comes into contact.

As configured as above, when the solenoid 41 is energized, the second lever 43 pushes the lower side 45a of the two-pronged lever 45, and the upper side 45b pushes up the roller 46, the two-pronged lever 45 and the third The lever 49, roller 46, etc. move from the chain line position to the solid line position in FIG. Through small hole 9,
Push down the leaf spring 11 of the cassette almost vertically, and
0.

In this embodiment, as shown in FIG. 4, the exposure hole 26 is L-shaped, a pin 50 is passed through one side of the exposure hole 26, and this part is closed by a bracket 51. The hole for passing through may be formed separately.

The motor 30 is rotated when the upper side 45b of the two-pronged lever and the guide rail 54 are connected.

When the shutter plate 28 is moved to the right as described above, the side plate 47
At the same time, the third lever 49 moves to the right, the roller 46 moves from the upper side 45b of the two-pronged lever to the guide rail 54, and thereafter, the energization of the solenoid 41 is stopped. Therefore, the pin 50 remains inserted into the small hole 9 of the small lid of the cassette.
The small lid 5 is opened and closed by the pin 50 which reciprocates as the shutter plate moves.

When the crank 31 rotates once and returns to its original position and the roller 46 comes off the guide rail 54, the power supply to the solenoid 41 is stopped at the same time as the power supply to the motor 30 starts, and the lever 43 moves the lower side 45 & of the two-pronged lever. Since it is not pushed, the upper side 45b descends, and the roller 46 comes into contact with the end of the guide rail 54 and cannot move to the right. Therefore, motor 30
After the shutter plate 28 is de-energized, even if it tries to rotate a little due to inertia, the rotation is blocked and the shutter plate 28 is held immovable. At this time, the pin 50 rises together with the right end of the lever 49 and escapes from the small hole 9 in the small lid of the cassette, allowing the cassette to be freely taken out from the gap in the substrate of the casing 16.

As explained in (a) and (b) above, when the cassette a is inserted into the gap in the base plate 17 of the casing and it is in the correct position, the microswitch detects this and activates the solenoid 41, The forked lever 45 is rotated to push up the roller 46 and the pin 50 is lowered to pass through the small hole 9 in the small lid of the cassette to release the lock by the leaf spring 11. The shutter plate 28 is rotated and reciprocated to open and close the small lid 9, which illuminates the card placed in the square hole 15 of the upper plate 28 and illuminates the lens 2.
4. Reflected light from the lamp that forms an image of the card on the film through the square hole 15 is projected onto the film surface through the exposure hole 26 of the shutter plate.

The data written on the card can be exposed to film.

When the crank 31 completes one revolution, the roller 46 comes into contact with the end face of the guide rail 54 and becomes immovable, ensuring that the pin 50 is pulled up and safely pulling out the processed cassette and inserting the next cassette. It will be in a state where it can be used.

In this way, the insertion of the pin 50 into the small hole 9 of the small lid of the cassette, the pressing of the leaf spring, and the opening and closing of the small lid via the pin 50 are performed independently, so there is no need to open and close the small lid. This allows for smooth operation without the intervention of frictional force.

In the above embodiment, the cover plate 35 is provided on the shutter plate 28, and the exposure hole 26 is opened for data exposure when the shutter plate moves to the right in FIG. 4, and the exposure hole 26 is opened when the shutter plate moves to the left. I decided not to close it and perform exposure because I was concerned that the cassette would move slightly during the reciprocating movement of the shutter plate 28 and the data image would become unclear.However, if the cassette is installed securely, For example, double exposure may be performed by opening the exposure hole 26 when the shutter plate moves back and forth. Therefore, in this case, the guide 34, cover plate 35, lever 37, and stopper 39, 40 are not required. If you keep the cassette stationary and perform double exposure like this,
The lens 24 can be stopped down to sharpen the imaging of the data.

C. Effects of the Invention As a device for opening and closing the small cover that blocks the exposure window of the cassette, a pin pushing mechanism is used to press a leaf spring to unlock the small cover, and a lateral movement of the pin is used to move the small cover. Since the operations are performed independently using separate devices, there is no frictional force that impedes smooth operation compared to the conventional mechanism that allows pin pushing and lateral movement to be performed at the same time by circular motion centered at one end of the pin. The small lid can be opened and closed smoothly with less intervention.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the data imprinting device for X-ray film cassettes according to the present invention, FIG. 1 is a side view which is a sectional view taken along the line CC in FIG. D-D
A plan view that is a cross-sectional view, FIG. 3 is a cross-sectional view taken along line E-E in FIG.
Figure 4 is a plan view showing the mechanism that drives the shutter plate;
The figure is a front view of this, Figure 6 is a plan view showing the mechanism for unlocking the small lid of the cassette, Figure 7 is a sectional view taken along line F-F in Figure 6, Figure 8 is a perspective view of the cassette, and Figure 9 is a sectional view of the cassette. The figure is A-A in Figure 8.
10 is a sectional view taken along line BB in FIG. 9, and FIG. 11 is a partial sectional view schematically showing a conventional small lid drive mechanism. a: cassette, b: card, l: main body, 2: hinge, 3:
Lid, 4: Handle, 5: Small lid, 6: Exposure window, 7: Small lid guide, 8: Opening, 9: Small hole, 10: Notch, 11: Leaf spring,
12: Light shielding piece, 13: Pin, 14: Horizontal shaft, 15: Square hole,
16: Casing, 17: Board, 18 Knee top plate, 19:
Side plate, 20: Partition plate, 21: Lower chamber, 22 Upper chamber, 23:
Lamp, 24: Lens, 25: Window, 26: Exposure hole, 27
: Sliding piece, 28: Shutter plate, 29: Guide rod, 30: Motor, 31: Crank, 32: Link, 33: Pin, 34
:Guide, 35: Cover plate, 36: Shaft, 37: First lever, 38: Shaft, 39.40: Stopper, 41: Solenoid, 42: Shaft, 43:: 5 Second lever, 44: Horizontal axis, 4
5: Two-pronged lever, 45a: Lower side, 45b: Upper side, 46:
l: l-ra, 47: side plate, 48: shaft, 49: third lever, 50: pin, 51 nib bracket, 52.53: spring, 54 nib guide, rail.

Claims (1)

[Claims] It moves along the small lid guide (7) to open and close the exposure window (6) for data imprinting, and when closed, it is locked by engaging the leaf spring (11) with the notch in the small lid guide (7). small lid (5
) In a data imprinting device for an X-ray film cassette that imprints data through an exposure window (6) onto an X-ray film stored in a cassette (a) having a substrate ( 17
), a casing (22) is formed by a top plate (18) forming a window for placing a card (b) with data written thereon, and a side plate (19), and a partition plate (20) equipped with a lens (24) allows the interior of the casing to be is divided into a lower chamber (21) and an upper chamber (22), a lamp (23) is installed in the upper chamber (22), and a lamp (23) is installed in the lower chamber (21).
) is the small lid (
5) and a mechanism that opens and closes the lens (24) and enters the light that has passed through the lens (24) into the exposure window (6) of the cassette. An exposure device consists of a shutter plate (28) having an exposure hole (26) that is reciprocated along a guide rod (29), and a pin (28) inserted at both ends into a small hole (9) of a small lid (5) of a cassette. 50) and a roller (46), and a lever (49) that can pull up the end with the pin (50) with a spring (53) is connected to the side plate (28) connected to the shutter plate (28).
47) with the horizontal shaft (48), and the small lid of the cassette (5)
When opening, before starting the motor (30), push up the roller (46) of the lever (49) and place it on the fixed guide rail (54) to make the lever (49) unrotatable and lock the pin. A small lid opening/closing device that lowers the small lid (50) and pushes a leaf spring (11) provided below the small lid through the small hole (9) of the small lid to release the lock of the small lid. Data imprinting device for cassette.