JP4990043B2 - Imaging device - Google Patents

Description

The present invention relates to an imaging apparatus that images the inside of a human body using X-rays.

FIG. 16 shows a conventional imaging apparatus used for imaging the inside of a human body in a hospital or the like. In the photographing apparatus 110, the apparatus main body 120 is supported by a base 111 extending in the vertical direction so as to be movable up and down. A cassette 130 for accommodating a film 140 sensitive to X-rays can be inserted into and removed from the apparatus main body 120. In the imaging apparatus 110, first, after mounting the cassette 130 in a state in which the film 140 is accommodated in the apparatus main body 120, imaging is performed by irradiating X-rays from behind a human body standing toward the apparatus main body 120.
JP 2005-148398 A

However, in the photographing apparatus 110 described above, the slit 121 for inserting the cassette 130 into the apparatus main body 120 is only provided on one side surface 122 of the apparatus main body 120 that is substantially rectangular when viewed from the front. There were restrictions on the location of 110. That is, the imaging device 110 has to be arranged so that the periphery of the slit 121 is open to the extent that the cassette 130 can be inserted and removed. In addition, when the periphery of the slit 121 cannot be vacated, it is necessary to create a space for taking out the cassette 130 from the slit 121 by moving the entire photographing apparatus 110 every time photographing is completed, so that work efficiency is remarkably reduced. It was.

On the other hand, it has also been proposed to supply the imaging device 110 in which the position of the slit 121 is changed according to the desire of the purchaser of the imaging device 110. However, if the position of the slit 121 is changed at every purchase, the production efficiency is lowered, which may lead to an increase in cost. Furthermore, due to a change in the layout of the installation location of the photographing apparatus 110 and other circumstances, it may be difficult to insert and remove the cassette 130 at the position of the initially set slit 121.

Therefore, an object of the present invention is to provide an imaging apparatus that can insert and remove the cassette in two directions with respect to the apparatus main body and can select the insertion and removal direction.

In order to solve the above-described problems, an imaging apparatus of the present invention includes a cassette that houses a film that is sensitive to X-rays, and a device main body that is detachably accommodated in the cassette. A cassette moving means for moving the cassette to be inserted into the apparatus main body or pulled out from the apparatus main body, and a direction switching means capable of switching the insertion / removal direction of the cassette by the cassette moving means are provided.

In the photographing apparatus of the present invention, the cassette moving means is a slide rail that moves the cassette along the insertion / removal direction of the cassette , and the slide rail is selectively connected to the cassette according to the operation of the direction switching means. It is a first slide rail being, and a second slide rail to move a cassette integrated, as comprising.

In the photographing apparatus of the present invention, the urging means for urging the connecting means so that the first slide rail and the cassette are connected to each other, and the urging by the urging means are released according to the operation of the direction switching means, and the first Biasing release means for releasing the connection between the slide rail and the cassette, and when the biasing means releases the bias by the biasing means, the cassette moves together with the second slide rail, and the biasing means When the connecting means is urged by, the cassette can move together with the first slide rail and the second slide rail.

In the photographing apparatus of the present invention, it is preferable that the bias release unit is a swing member that releases the bias by the bias unit by swinging according to the operation of the direction switching unit.

In the photographing apparatus of the present invention, the first slide rail includes a first support rail and a first moving rail that can move relative to the first support rail, and the second slide rail includes a second support rail and A second moving rail that is movable relative to the second support rail, the first moving rail being connected to the second support rail via a rail connecting member, and being biased by the bias releasing means When the biasing means is released, the cassette moves together with the second moving rail, and when the connecting means is biased by the biasing means, the cassette has the first moving rail, the second support rail, and the second moving rail. It is preferable to move with the two moving rails.

In the photographing apparatus of the present invention, the connecting means may be a pin that penetrates the first slide rail and the cassette when biased.

In the photographing apparatus of the present invention, the direction switching means is a slide switch that moves relative to the apparatus main body, and can regulate the moving direction of the cassette by the slide rail according to the switching position of the slide switch.

In the photographing apparatus of the present invention, the urging means is preferably a compression spring that urges the pin so as to penetrate the first slide rail and the cassette.

According to the present invention, in the apparatus main body of the photographing apparatus, a cassette moving means for moving the cassette to insert / remove the cassette into / from the apparatus main body, a direction switching means capable of switching the insertion / removal direction of the cassette by the cassette moving means, Therefore, the cassette can be inserted into and removed from the apparatus main body in two directions, and the insertion / removal direction can be selected.

Hereinafter, an imaging device according to an embodiment of the present invention and an imaging device drawer mechanism used in the imaging device will be described in detail with reference to the drawings.

An imaging apparatus 10 according to the present embodiment includes a cassette 30 that houses a film 40 that is sensitive to X-rays, and an apparatus main body 20 that houses the cassette 30 in a detachable manner. Further, the apparatus main body 20 includes a first slide rail 50 and a second slide rail 60 as cassette moving means for moving the cassette 30 in order to insert the cassette 30 into the apparatus main body 20 or pull it out from the apparatus main body 20. And a slide switch (direction switching means) 70 that can switch the insertion / removal direction of the cassette 30 by the first slide rail 50 and / or the second slide rail 60.

The drawer mechanism 25 (photographing apparatus drawer mechanism) includes a first slide rail 50, a second slide rail 60, and a slide switch 70.
Below, the detailed structure of each member is demonstrated. In the following description, the film 40 accommodated in the cassette 30 is a type sensitive to X-rays, but the present invention can be applied to other types of films.

FIG. 1 is a perspective view showing a configuration of a photographing apparatus 10 according to the present embodiment. As shown in FIG. 1, the apparatus main body 20 is held so as to be movable in the vertical direction by a support shaft 12 provided so as to extend in the vertical direction from a base 11 arranged on the floor surface. On both sides of the back surface of the apparatus main body 20, there are provided gripping portions 22 that are gripped by the subject during radiography.

FIG. 2 is a perspective view showing a process of attaching the film 40 to the cassette 30 pulled out from the right side slit 23 of the apparatus main body 20, and FIG. 3 is a perspective view of the cassette 30 pulled out from the left side slit 24 of the apparatus main body 20. FIG. 6 is a perspective view showing a process of attaching a film 40. As shown in FIG. 2 or FIG. 3, a right side slit 23 and a left side slit 24 are formed on both sides of the apparatus main body 20 in order to insert and remove the cassette 30. Therefore, the cassette 30 can be inserted and removed from both the left and right sides of the apparatus main body 20.

A film holding plate 31 urged upward by a spring (not shown) attached to the back surface is attached to the cassette 30. Further, the upper side of the cassette 30 having a substantially rectangular shape in plan view is folded back toward the film holding plate 31, thereby forming a film abutting portion 32. The film 40 is sandwiched between the film holding plate 31 and the film abutting portion 32 by the urging force applied to the film holding plate 31. The upper side of the film holding plate 31 is a stepped step portion 31a so as to be compatible with films 40 of various sizes.

FIG. 4 is a perspective view showing a holding state of the cassette 30 in the apparatus main body 20. In FIG. 4, the film holding plate 31 is not shown. As shown in FIG. 4, the cassette 30 is held by a drawer mechanism 25 provided on the back plate 21 of the apparatus main body 20 and a roller group 28 so as to be movable in the left-right direction.

FIG. 5 is a perspective view showing a state of the swing member and the drawer mechanism 25 when the slide switch 70 is pushed down. FIG. 6 is a perspective view showing a state in which the second slide rail 60 moves to the left side together with the cassette 30 after the slide switch 70 is pushed down. FIG. 7 is a perspective view showing the state of the swing member and the drawer mechanism 25 when the slide switch 70 is pushed up. FIG. 8 is a perspective view showing a state where the first slide rail 50, the second slide rail 60, and the cassette 30 are integrally moved to the right after the slide switch 70 is pushed up. 5 to 8, only a part of the cassette 30 is shown for convenience of explanation.

As shown in FIGS. 5 to 8, the drawer mechanism 25 includes a first slide rail 50 and a second slide rail 60 that are arranged in parallel to each other.
The first slide rail 50 includes a first support rail 51 fixed to the back plate 21 of the apparatus main body 20 so as to extend in the insertion / removal direction of the cassette 30, and a first support rail along the longitudinal direction of the first support rail 51. And a first moving rail 52 that can move relative to 51. The second slide rail 60 is connected to the first moving rail 52 by the rail connecting member 26, and extends in the insertion / removal direction of the cassette 30, and the second support rail 61 extends in the longitudinal direction of the second support rail 61. And a second moving rail 62 that is movable relative to the two support rails 61.

FIG. 9 is a perspective view showing the configuration of the back plate 21 of the apparatus main body 20. FIG. 10 is a perspective view showing the rotation direction of the swing member when the slide switch 70 is slid upward. FIG. 11 is a perspective view showing the rotation direction of the swing member when the slide switch 70 is slid down. As shown in FIG. 9, the back plate 21 is provided with a slide switch 70 that can slide in the vertical direction. The slide switch 70 is provided with a shaft portion 71 extending toward the front side of the apparatus main body 20. As shown in FIGS. 10 and 11, the shaft portion 71 of the slide switch 70 is engaged with the engagement end portion 82 of the swinging member 80 that can swing about the shaft portion 81 fixed to the back plate 21. Yes. As shown in FIG. 10, when the slide switch 70 is slid upward, the engaging end portion 82 is rotated upward together with the shaft portion 71, and accordingly, the claw portion 83 which is the other end portion of the swinging member. Pivots downward. On the other hand, when the slide switch 70 is slid downward, the engagement end portion 82 is rotated downward together with the shaft portion 71, and accordingly, the claw portion 83 is rotated upward (FIG. 11).

The cassette 30 is fixed to the second moving rail 62 of the second slide rail 60, and is connected and disconnected to the first moving rail 52 of the first slide rail 50 according to the operation of the slide switch 70. Is selected. That is, when the slide switch 70 is slid downward (FIG. 5), the connection between the first moving rail 52 and the cassette 30 is released, and the cassette 30 is moved together with the second moving rail 62 to the left as shown in FIG. It can move in the direction. On the other hand, when the slide switch 70 is slid upward (FIG. 7), the first moving rail 52 and the cassette 30 are connected, and the cassette 30 is connected to the first moving rail 52 and the first moving rail 52 as shown in FIG. The two slide rails 60 can be moved in the right direction. In the state where the slide switch 70 is slid downward as shown in FIGS. 5 and 6, the movement of the first moving rail 52 in the right direction is restricted by the first moving rail 52 hitting the slide switch 70. is doing. On the other hand, in the state where the slide switch 70 is slid upward as shown in FIG. 7 and FIG. 8, the slide switch 70 comes to a position deviating from the moving direction of the first moving rail 52. It can move in the direction.

Next, a configuration in which the first moving rail 52 and the cassette 30 are connected or disconnected according to the sliding direction of the slide switch 70 will be described in detail. Here, FIG. 12A shows the relationship between the coupling biasing member 92, the rail coupling member 26, and the cassette 30 when the claw portion 83 of the swinging member (biasing release means) is raised by sliding the slide switch 70. FIG. 12B is a plan view of FIG. 12A. FIG. 13A is a partial cross section seen from the left side showing the relationship between the coupling biasing member 92, the rail coupling member 26, and the cassette 30 when the claw portion 83 of the swinging member is lowered by the sliding of the slide switch 70. FIG. FIG. 13 and FIG. 13B are plan views of FIG. FIG. 14 is a cross-sectional view taken along a plane perpendicular to the back plate 21, including the XIV-XIV line that is a vertical line passing through the support shaft 93 a in FIG. 5. FIG. 15 is a cross-sectional view taken along a plane perpendicular to the back plate 21, including the XV-XV line that is a vertical line passing through the support shaft 93 a in FIG. 7.

As shown in FIGS. 12 and 13, a support member 93 is fixed to the rail connecting member 26, and a support shaft 93 a is attached to the support member 93 so as to extend along the vertical direction. The support shaft 93a passes through substantially the center of the long plate-like connection urging member 92, whereby the connection urging member 92 can swing around the support shaft 93a. Of the both ends in the longitudinal direction of the connection biasing member 92, the right end 92a has a connection hole 26a provided in the rail connection member 26, and a connection hole provided in the cassette 30 so as to be connected to the connection hole 26a. A pin 91 (connecting means) is provided that protrudes toward 30a. On the other hand, a spring 95 (biasing means) is disposed between the rail linking member 26 and the left end portion 92 b of the linking urging member 92. The spring 95 is a compression coil spring that urges the left end 92b so as to widen the distance from the rail connecting member 26. When the urging force of the spring 95 is applied, the connecting urging member 92 uses the support shaft 93a as a fulcrum. As a result, the pin 91 is inserted into the connecting holes 26a and 30a. In addition, the pin 91 can also be made into shapes other than a cylindrical pin, and let the connection hole parts 26a and 30a be a shape match | combined with this shape. Further, instead of the spring 95, a leaf spring, a torsion bar, or rubber can be used.

As shown in FIGS. 12 and 14, when the claw portion 83 of the swinging member (biasing release means) is rotated upward by sliding the slide switch 70 downward, the claw bent toward the rail connecting member 26 side. The tip of the portion 83 abuts on the back surface of the left end portion 92 b of the coupling biasing member 92. As a result, the urging force from the spring 95 to the left end portion 92b is released, so that the right end portion 92a of the connection urging member 92 is restricted from turning toward the rail connecting member 26 and the cassette 30. In this state, since the pin 91 is not inserted up to 30 a, the rail connecting member 26 and the cassette 30 are not connected by the pin 91. Therefore, when the cassette 30 is to be moved in the left direction, the cassette 30 and the second moving rail 62 coupled to the cassette 30 are moved in the left direction.

On the other hand, as shown in FIG. 13 and FIG. 15, when the claw portion 83 of the swinging member is rotated downward by sliding the slide switch 70 upward, The rotation restriction is released. As a result, an urging force is exerted from the spring 95 to the left end portion 92b, so that the coupling urging member 92 rotates about the support shaft 93a, whereby the pin 91 is moved into the coupling holes 26a and 30a. The rail connecting member 26 and the cassette 30 are connected to each other. Therefore, when the cassette 30 is moved in the right direction, the cassette 30, the second moving rail 62 coupled to the cassette 30, and the first moving rail 52 and the second support rail 61 coupled to the rail connecting member 26 are obtained. Move to the right.

Due to the above configuration, according to the above embodiment, the cassette 30 can be moved in two directions, left and right, so that the cassette 30 can be moved in either the right side slit 23 or the left side slit 24 of the apparatus body 20. 30 can be inserted and removed. Further, by operating the slide switch 70 to swing the swing member, both the first slide rail 50 and the second slide rail 60 or only the second slide rail 60 can be connected to the cassette 30. In addition, the cassette 30 can be moved in the direction corresponding to the connected state and can be inserted into and removed from the apparatus main body 20.

Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the above embodiment, and can be improved or changed within the scope of the purpose of the improvement or the idea of the present invention.

As described above, the imaging device and the imaging device drawer mechanism according to the present invention are useful for imaging a human body and other objects in medical and other situations, and are particularly suitable for X-ray imaging inside the human body.

It is a perspective view which shows the structure of the imaging device which concerns on embodiment of this invention. It is a perspective view which shows the mounting process of the film to the cassette pulled out from the right side slit of the apparatus main body which concerns on embodiment of this invention. It is a perspective view which shows the mounting process of the film to the cassette pulled out from the left side slit of the apparatus main body which concerns on embodiment of this invention. It is a perspective view which shows the holding | maintenance state of the cassette in the apparatus main body which concerns on embodiment of this invention. It is a perspective view which shows the state of the rocking | swiveling member and drawer | drawing-out mechanism when the slide switch which concerns on embodiment of this invention is pushed down. It is a perspective view which shows the state which the 2nd slide rail moved to the left side with the cassette after the slide switch which concerns on embodiment of this invention was pushed down. It is a perspective view which shows the state of the rocking | swiveling member and drawer | drawing-out mechanism when the slide switch which concerns on embodiment of this invention is pushed up. It is a perspective view showing the state where the 1st slide rail, the 2nd slide rail, and the cassette moved to the right after being pushed up after the slide switch concerning an embodiment of the present invention was pushed up. It is the perspective view seen from the IX direction of FIG. 1 which shows the structure of the back plate of the apparatus main body which concerns on embodiment of this invention. It is a perspective view which shows the rotation direction of the rocking | swiveling member when sliding the slide switch which concerns on embodiment of this invention upwards. It is a perspective view which shows the rotation direction of the rocking | swiveling member when sliding the slide switch which concerns on embodiment of this invention below. (A) is the partial cross section seen from the left which shows the relationship between a connection energizing member, a rail connection member, and a cassette when the nail | claw part of a rocking | swiveling member goes up by sliding of the slide switch which concerns on embodiment of this invention. It is a figure, (b) is a top view of (a). (A) is the partial cross section seen from the left side which shows the relationship between a connection biasing member, a rail connection member, and a cassette when the nail | claw part of a rocking | swiveling member falls by the slide of the slide switch which concerns on embodiment of this invention. It is a figure, (b) is a top view of (a). It is sectional drawing in the surface perpendicular | vertical to a backplate including the XIV-XIV line | wire which is a perpendicular line which passes along a support shaft in FIG. It is sectional drawing in the surface perpendicular | vertical to a backplate including the XV-XV line | wire which is a perpendicular line which passes along a support shaft in FIG. It is a front view which shows the structure of the conventional imaging device.

DESCRIPTION OF SYMBOLS 10 Image | photographing apparatus 20 Apparatus main body 21 Back plate 22 Grip part 23 Right side slit 24 Left side slit 25 Drawer mechanism (drawer mechanism for imaging devices)
26 rail connecting member 26a connecting hole 28 roller group 30 cassette 30a connecting hole 31 film holding plate 31a step 32 film abutting part 40 film 50 first slide rail (cassette moving means)
51 1st support rail 52 2nd moving rail 60 2nd slide rail (cassette moving means)
61 First support rail 62 Second moving rail 70 Slide switch (direction switching means)
80 Swing member (biasing release means)
83 Claw 91 Pin (connection means)
92 connection biasing member 93 support member 93a support shaft 95 spring (biasing means)

Claims (7)

Has a cassette for accommodating a film sensitive to X-ray, a device body that houses the cassette to be inserted and removed, and the apparatus main body, the cassette is inserted into the apparatus main body, or the device to withdraw from the main body, and a cassette moving means for moving the cassette, and a slide rail for moving the cassette device along the insertion and removal direction body, you can switch the insertion and removal direction of the cassette by the cassette moving means Direction switching means , wherein the slide rail is selectively coupled to the cassette according to the operation of the direction switching means, and the cassette An imaging apparatus comprising: a second slide rail that moves integrally . An urging means for urging a connecting means so that the first slide rail and the cassette are connected to each other; and urging by the urging means is released according to an operation of the direction switching means, and the first slide rail And an urging release means for releasing the connection between the cassette and the cassette, and when the urging force by the urging means is released by the urging release means, the cassette moves together with the second slide rail, The photographing apparatus according to claim 1 , wherein the cassette moves together with the first slide rail and the second slide rail when the connecting means is biased by the biasing means. The photographing apparatus according to claim 2 , wherein the bias release unit is a swing member that releases the bias by the bias unit by swinging according to the operation of the direction switching unit. The first slide rail includes a first support rail and a first moving rail movable relative to the first support rail, and the second slide rail includes a second support rail and the second support rail. A second moving rail that is movable relative to the support rail, and the first moving rail is connected to the second support rail via a rail connecting member, and is attached by the bias release means. When the biasing means is released, the cassette moves together with the second moving rail, and when the connecting means is biased by the biasing means, the cassette moves to the first moving rail, The imaging device according to any one of claims 1 to 3, wherein the imaging device moves together with the second support rail and the second moving rail. The imaging device according to any one of claims 2 to 4, wherein the connecting means is a pin that penetrates the first slide rail and the cassette when biased. The direction switching means is a slide switch which moves relative to the apparatus main body, wherein according to the switching position of the slide switch, claims 1 to 5 for regulating the moving direction of the cassette by the slide rail The imaging device according to any one of the above. The photographing apparatus according to claim 2 , wherein the urging unit is a compression spring that urges the pin so as to penetrate the first slide rail and the cassette.

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