JPS62205946A - Sheet material transfer mechanism - Google Patents

Abstract

PURPOSE:To smoothly transfer a sheet material to a designated position by clamping the sheet material with the first pressing element and the second pressing element capable of advancing and retreating to and from the first pressing element. CONSTITUTION:A motor 328 is adapted to displace the second pressing element 306 forward and backward to the first pressing element 308, and move the whole a clamping unit 304 comprising the first pressing element 308 and the second pressing element 306. A sheet material is fed into a space formed between both pressing elements 308, 306 and clamped by both pressing elements 308, 306, and the clamping unit 304 is moved linearly. The second pressing element 306 is separated from the first pressing element 308 to release the clamping state of the sheet material. In this arrangement, the sheet material can be smoothly transferred to a designated position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet body transport mechanism, and more particularly, to a sheet body configured to smoothly transport a sheet body such as a sheet-like film or a stimulable phosphor sheet to a predetermined position. Regarding the transport mechanism.

X-rays that irradiate radiation onto objects such as the human body and record radiation images on X-ray film, which are useful for medical diagnosis.
2. Description of the Related Art Radiography apparatuses have been widely used in the past. In this case, the X-ray film is loaded into the X-ray imaging device in a light-shielded state, and a radiation image of the subject is recorded by directly irradiating the emulsion surface of the film with X-rays.

By the way, recently, a radiographic image recording and reproducing system that obtains a radiographic image of a subject using a storage phosphor (stimulable phosphor) has been developed, and it has become widespread in the medical field as mentioned above. be.

Here, a storage phosphor is a material that, when irradiated with radiation (<X-rays, α-rays, β-rays, γ-rays, electron beams, ultraviolet rays, etc.), stores a portion of this radiation energy and later emits visible light, etc. A phosphor that generates stimulated luminescence according to the accumulated energy when irradiated with excitation light.

The radiation image recording and reproducing system described above utilizes this stimulable phosphor, and once the radiation image information of the human body etc. is recorded on a sheet having a layer of stimulable phosphor (hereinafter referred to as stimulable phosphor sheet or simply This stimulable phosphor sheet is scanned with excitation light such as rape light to generate stimulated luminescent light, and the resulting stimulated luminescent light is read out photoelectrically to obtain an image signal. Based on this image signal, a visible image is output to a recording material such as a photographic light-sensitive material, a CRT, or the like.

Here, when recording a radiation image of a subject on the stimulable phosphor sheet, an image recording device is employed. This apparatus stores the sheets through a supply magazine or the like, takes out the sheets one by one using a sheet feeding mechanism including a suction cup, etc., and then transports the sheets to the photographing section using a transport mechanism. A known system is known in which a desired radiation image is recorded by exposing the sheet to radiation through the subject in the photographing section, and the sheet on which image information is recorded is stored in a receive magazine. . After this,
The image information recorded on the sheet on which image information is recorded is photoelectrically read by an image recording device, and the image information is converted into a visible image by an image reproducing device, which is then used for medical diagnosis, etc. Become.

Conventionally, image recording devices used for human body diagnosis generally have an imaging section that protrudes from the main body of the device so that it can not only capture the chest in an upright position but also capture the head and neck from the side. It is true. In other words, if the photographing section is made to protrude, when photographing the head and neck from the side, a space is secured for the shoulders of the subject to be photographed, so that the head and neck can be photographed in close proximity to the photographing section. As a result, a radiographic image of a desired region can be recorded without being affected by the region of the subject being imaged.

For example, as shown in FIG. 1, if a photographing section B is formed so as to protrude from the image recording device A, a space will be defined below the photographing section B, so that the shoulder of the human body can be inserted into this space. It is possible to photograph the head or neck while the patient is in the same position. In this case, when photographing, a stimulable phosphor sheet S is placed on the distal end side of the photographing section B.
need to be placed. Therefore, as a conveyance path for the sheet in the image recording apparatus A, for example, a path as shown by the dotted line in FIG. 1 can be considered. That is, the sheet S fed from the upper side inside the image recording apparatus A is curved at position C and conveyed in the horizontal direction, and then curved at the position and the conveyance direction is changed downward to make the sheet S stand up. standby at the shooting position. After the photographing is completed, the sheet S is bent again at position E and transported in the horizontal direction, and furthermore, at position F, the transport direction is changed again to vertically downward and transported into a receive magazine (not shown).

However, if such a conveyance path is configured, the sheet S will curve each time it passes through positions C, D, E, and F, which is undesirable because an unreasonable force will be applied to the sheet S. In particular, when using the sheet S repeatedly,
- There is a risk that the S itself will become fatigued due to numerous bending deformations, and its service life will be shortened. Moreover, WC1D,
In each of E and F, a mechanism for curving the sheet S using a roller, a belt, or the like is required, resulting in the disadvantage that the configuration of the entire conveying mechanism must become complicated.

The present invention has been made in order to overcome the above-mentioned disadvantages, and includes a holding unit that holds a sheet body such as a stimulable phosphor sheet conveyed along a predetermined route, and the sheet body is held between the holding units. By configuring the sheet body to be captured by the unit, and move the clamping unit linearly while holding the sheet body, and after a predetermined process is completed, the sheet body is released and sent out from the clamping unit to the outside. To provide a sheet body transport mechanism that can reliably transport a sheet body to a predetermined location, does not curve the sheet body, and is therefore more economical by increasing its service life.

In order to achieve the above object, the present invention includes a clamping unit including a first holding body and a second holding body, and a clamping unit that moves the second holding body forward and backward with respect to the first holding body. and a unit driving means for moving the entire clamping unit, and defining a gap between the first holding body and the second holding body under the driving action of the unit driving means. A sheet body is fed into the gap, the sheet body is held between a first holding body and a second holding body, the holding unit is moved linearly, and the second holding body is separated from the first holding body side. It is characterized in that it is configured to release the sandwiched state of the sheet body by doing so.

Next, preferred embodiments of the sheet transport mechanism according to the present invention in relation to a radiation image recording apparatus incorporating the same will be described in detail with reference to the accompanying drawings.

In FIG. 2, reference numeral 10 indicates an image recording device.

A lifting platform 1 is provided on the base 12 constituting the image recording device 10.
4 is installed vertically so that it can be raised and lowered freely. The device main body 16 has supply magazine loading ports 1 that are inclined with respect to the vertical direction.
8 and a receiving magazine loading port 20 are formed. In this case, as shown in FIG.
00, a transport section 200, a photographing section 300, and a storage section 400.

A supply magazine 102 is removably loaded into the supply section 100 through a loading port 18 of the main body 16 of the apparatus. A plurality of flexible stimulable phosphor sheets S are stored in the supply magazine 102, and a sheet-fed mechanism that can be accessed through an opening defined in the supply magazine 102 for carrying out sheets. 110 are provided. A servo motor 112 constituting this single wafer mechanism 110 is fixed within the apparatus main body 16, and a crack bin 120 is provided at the outer peripheral edge of the disc 110 which rotates as the servo motor 112 is driven. This crack pin 120 extends into an oblong hole 126 of a first arm 122 which is swingably supported via a fulcrum pin 124. Furthermore, a second arm 130 is attached to the tip of the first arm 122. 2nd arm 1
A tube body 140 is attached to the tip of the tube body 140.
A suction cup 142 is attached to the tip of the sheet S so as to face the sheet S. In this case, a coil spring 144 is fitted onto the tubular body 140 and the elastic force of the coil spring 144 is applied to the suction cup 142 (along with the suction cup 142).
When pressed toward the tubular body 140, the coil spring 144 is compressed and the suction cup 142 is displaced toward the second arm 130. Note that the tube body 140 is connected to a vacuum generator (not shown).

Furthermore, a torque motor 160 is fixed to the device main body 16 above the suction cup 142, and a gear 164 is pivotally supported on a rotary drive shaft 162 extending from the torque motor 160. A gear 166 meshes with the gear 164, and an L-shaped swinging arm 170 is connected to the gear 166 via a shaft 168.
is attached. A roller 174 is rotatably supported at a short portion on the lower side of the swing arm 170.

Next, the transport section 200 will be explained. Pulleys 202a and 202b constituting the conveying section 200 are arranged apart from each other in accordance with the width of the stimulable phosphor sheet S to be conveyed, and the pulleys 202a and 202b are fixed to a rotating shaft 204 and integrally formed. rotate. In this case, the rotating shaft 2
A servo motor (not shown) is engaged with one end of 04. A conveyor belt 20 is attached to each of the pulleys 202a and 202b.
One end of 6a, 206b is stretched, and the conveyor belt 2
The other ends of the shafts 06a and 206b are stretched over pulleys 208a and 208b fixed to a rotating shaft 210. Small diameter boots 212a, 212b are disposed between the boots 208a, 208b and the pulleys 202a, 202b.

On the other hand, belts 214a to 214c having a predetermined width are arranged between pulleys 202a and 202b. That is, a first roller 216 is rotatably supported by the device main body 16 parallel to the rotating shaft 204, and this tenth roller 216 is rotatably supported by the device main body 16.
A second roller 218 is disposed at substantially the same height as the 20th roller 218 through an elastic body, and is disposed at a position substantially the same height as the 20th roller 218.
Similarly, a third roller 220 is disposed below 8 via an elastic body so as to be freely displaceable.

Bells 214a to 214c are stretched in parallel to each of the rollers 216, 218 and 220 at a predetermined distance. Note that two auxiliary rollers (not shown) are rotatably supported on the rotating shaft 204, and each auxiliary roller is disposed between the bells 214a to 214c.

Further, rollers 216a, 218a and 2208 are similarly arranged on the Boo'J208a and 208b sides,
Belts 230a to 230c are stretched around the rollers 216a, 218a and 220a. in this case,
Pulley 202a.

The stimulable phosphor sheet S conveyed horizontally from vertically downward by U202b is transferred to the boo U208a, 208b
It is also configured to be directed vertically downward and supplied to the photographing unit 300 via belts 230a to 230c. Further, an erasing means 232 is provided above the conveyor belts I 206a and 206b, and a halogen lamp 234 for secondarily erasing the afterimage of the stimulable phosphor sheet S is installed in this erasing means 232. I'll keep it.

The photographing section 300 protrudes toward the subject side.
0 is provided with a transfer machine 302 according to this embodiment. The transfer mechanism 302 includes a clamping unit 304, and the clamping unit 304 will be explained next.

As shown in Figures 4 and 5, the clamping Unisol l-30
4 includes a first presser 308 and a second presser 306. The second holding body 306 includes a plate-shaped part 312 in which a barcode reading hole 310 is bored, and this plate-shaped part 312.
A side plate portion 3 provided by bending both ends of the
14a and 314b.

The position of the barcode reading hole 310 is made to correspond to the position of the barcode provided on the back side of the stimulable phosphor sheet S. Notches 316a, 316b and 316 are provided in the side plate portions 314a, 314b at predetermined intervals.
c, 316d are formed. Further, a notch 318a is formed between the notches 316a and 316b of the side plate 314a, and a not-shown notch similar to the notch 318a is also formed in the side plate 314b.

Disc bodies 320a to 32 are disposed on one surface of the plate-shaped portion 312.
The rods 322a to 322d connect to the plate portion 31 via 0d.
It is fixed perpendicularly to 2. Further, a support member 324 bent into an L-shape is fixed to the approximate center of the plate-shaped portion 312, and a gear box 326 and a motor 328 as unit driving means are engaged with this support member 324. Ru. In this case, the configuration is such that the rotational force of the motor 328 is transmitted to the output shaft 329 of the gear box 326 inserted through the support member 324. A gear 330 is fixed to the output shaft 329.

A gear 332 that meshes with the gear 330 is fixedly fitted onto a shaft 334, and the shaft 334 is rotatably inserted through support members 336a and 336b fixed to the second holding member 306. In this case, the shaft 334 loosely fits into a notch 318a of the side plate 314a and a notch (not shown) of the side plate 314b, and pinions 338a, 33 are provided at both ends of the shaft 334.
8b is fixed.

A support plate 340 having an L-shaped cross section is fixed to the lower end of the second presser 306 . Figures 6 and 7a,
As shown in FIG. 3B, a notch 342 is formed in a horizontal portion of the support plate 340, and a plate body 344 is fixed to the support plate 340 so as not to close the notch 342. A plate portion 346 parallel to the plate portion 312 is provided upright on the plate body 344, and a solenoid 348 as a mounting member driving means is fixed to the plate body 344 via this plate portion 346. A shaft 350 is inserted through the solenoid 348, and the shaft 350 is inserted through the plate portion 346, and a press plate 352 is fixed to the tip thereof. Further, an arm 35 is provided on the lower surface side of the support plate 340 via support shafts 354a and 354b.
6a and 356b are swingably supported.

Platy mounting members 358a, 358b are fixed to one ends of the arms 356a, 356b, and the arms 356a, 35
At the other end of 6b, bin members 360a and 360b are erected close to each other. The bin members 360a, 360b
are inserted into the notch 342 of the support plate 340, and as shown in FIG. 360b is brought into contact with the pressing plate 352. In addition, the solenoid 34
8 and the motor 328 are connected to lead wires (not shown) having sufficient length, so that the lead wires do not interfere with the displacement of the holding unit 304, which will be described later.

On the other hand, the first holding body 308 includes a plate member 364 that does not block the passage of radiation irradiated during imaging, and side plates 366a and 366b provided perpendicularly to both ends of the plate member 364. The side plates 366a, 366b have cutouts 368a,
368b is formed, and block bodies 370a to 370d are fixed near both upper and lower ends of the side plates 366a and 366b, respectively. In this case, block bodies 370a to 370
Through holes 372a to 372d extending in the horizontal direction are provided in d.
should be drilled. Further, block bodies 376 are provided on support plates 374a and 374b installed on the side plates 366a and 366b.
a to 376d are fixed at a predetermined distance, and these blocks 376a to 376d and support plates 374a, 3
Through holes 378a to 378d are formed through 74b. Therefore, when assembling the clamping unit 304,
After fitting the second holding body 306 configured as described above inside the first holding body 308 and fitting the coil springs 380a to 380d onto the rods 322a to 322d,
The support plates 374a and 374b are attached to the side plates 3 of the first holding body 308.
66a and 366b. At that time, the rod 322a
The through holes 378a to 378d are slidably inserted through the through holes 378a to 378d, and form 41 so that the second pressing body 306 is pressed toward the first pressing body 308 by the elastic force of the coil springs 380a to 380d.

On the other hand, as shown in FIG.
383d to 383d are fixed in a horizontal direction, and locking members 384a and 384b are fixed to the upper surfaces of the frames 383a and 383b at positions corresponding to the ends of the casing 382. Locking members 384c and 384d are similarly fixed to the lower surfaces of the frames 383c and 383d.

The frame 3 is attached to these locking members 384a to 384d.
Guide rods 386a to 386d are fixed in parallel to 83a to 383d. In addition, frames 383a, 3
Rack members 388a and 388b are arranged in parallel between the frame 83c and the frames 383b and 383d. In this case, the holding unit 304 slidably inserts the guide rods 386a to 386d into the through holes 372a to 372d of the block bodies 370a to 370d, and
The pinions 338a, 338b are connected to the rack member 388a,
388b, it is provided in the photographing section 300. Further, a frame body 390 is fixed to the distal end side of the frames 383a to 383d, and the guide rods 386a to 386d and the rib members 3 are attached to the frame body 390.
The ends of 88a, 388b are secured. Furthermore, frame body 3
A button key 392 is attached to the front side of the housing 90 via a plate spring (not shown) or the like. This button key 392 is configured to vibrate under the driving action of an actuator 394 such as a rotary solenoid. On the other hand, cutouts 396a and 396b are formed at the ends of the casing 382 in correspondence with the upper surfaces of the rack members 388a and 388b.

Furthermore, a barcode reading section 398 (see FIG. 3) for reading the barcode provided on the stimulable phosphor sheet S is disposed between the frames 383a and 383b. Note that the stimulable phosphor sheet S is attached to the holding unit 304.
Before being fed, the clamping unit 304 is positioned on the casing 382 side.

A conveying system 402 constituting the storage section 400 is arranged below the holding unit 7) 304. A first sprocket 406 is fixed to a rotational drive shaft (not shown) extending from a motor 404 constituting the conveyance system 402.
A chain 410 is suspended between sprocket 406 and second sprocket 408. In this case, a roller 411 is integrally engaged with the second sprocket 408, and a conveyor belt 412 is stretched around rollers 411, 414 and 416. A nip roller 418 is close to the roller 416 side of the conveyance heald 412, and this nip roller 418 is operated by the roller 416 under the action of an actuator (not shown).
It is configured to define a gap between the two and capture the stimulable phosphor sheet S falling from the photographing section 300. Further, a nip roller 420 is in contact with the roller 414 side of the conveyor belt 412, and a receive magazine 422 is loaded below the nip roller 420.

The receive magazine 422 is arranged so as to be inclined at a predetermined angle, and is provided with a lid member 424 on its upper part that can swing to open and close, and an engaging part 426 is formed at the upper end of the lid member 424.

One end of a swinging member 428 is engaged with the retaining portion 426, and in this case, the other end of the swinging member 428 is swingably supported via a fulcrum pin 430. A rod 432a extending from a solenoid 432 is engaged with a substantially middle portion of the swinging member 428.

The image recording apparatus incorporating the sheet transport mechanism according to this embodiment is basically configured as described above.
Next, its action and effects will be explained.

First, the supply magazine 102 containing a predetermined number of stimulable phosphor sheets S is loaded into the main body 16 of the apparatus through the loading port 18 . Next, when the servo motor 112 constituting the single wafer mechanism 110 is driven, the disc 118 rotates in conjunction with the servo motor 112, and the first arm 122 engages with the crack pin 120 provided on the disc 118. The second arm 130 swings toward the supply magazine 102 around the fulcrum pin 124. Therefore, the suction cup 142 that is displaced integrally with the second arm 130 comes into contact with the sheet S located at the uppermost position in the supply magazine 102 .

Furthermore, when the disk 118 rotates, the first arm 122 and the second arm 130 swing toward the supply magazine 102, and the suction cup 142 moves toward the compressed coil spring 14.
4, and the suction cup 142 suctions the sheet S under the driving action of a vacuum generator (not shown).

That is, the suction cup 142 is configured to be oscillatedly displaced by the drive of the servo motor 112, and the sheet S will be suctioned at the forward position shown in the arrow ■ (example). supply magazine 10
When displacing the sheet S away from the second sheet, the upper end side of the sheet S is stopped by the roller 174 at the position indicated by the chain line in FIG. cannot follow the curved deformation and separates from the sheet S.

In the subsequent single wafer process, the suction cup 142 is finally
By moving backward to the position shown by the chain line, the seat S
The upper end side of the conveyor belt 206a, 206b and an auxiliary roller (not shown) provided on the rotating shaft 204 come into contact with each other.

Next, the torque motor 160 is driven to drive the rotary drive shaft 162.
When the gear 164 is rotated, the gear 164 fixed to the rotary drive shaft 162 rotates, and the gear 166 that meshes with the gear 164 rotates. Therefore, the shaft 168 engaged with the gear 166 rotates, the swing arm 170 swings, and the rollers 174 clamp the sheet S together with the conveyor belts 206a, 206b and an auxiliary roller (not shown). Then, if the drive of the vacuum generator (not shown) is stopped, the suction cup 142
-The adsorption effect on S is released.

Therefore, under the driving action of a motor (not shown), the rotating shaft 204
202a and 202b are rotated. When the pulleys 202a, 202b rotate, the stimulable phosphor sheet S is first conveyed upward via the conveyor belts 206a, 206b stretched over these rollers 174, and then the stimulable phosphor sheet S is conveyed upward through the conveyor belts 206a, 206b stretched over the pulleys 202a, 202b.
and is transferred horizontally in a curved manner via a plurality of belts 214a to 214c.

At this time, the erasing light is irradiated onto the seat S moving in the horizontal direction. That is, although the stimulable phosphor sheet S stored in the supply magazine 102 is irradiated with erasing light in advance to erase the radiation image remaining on the sheet S, the image is not completely erased. Alternatively, even after erasing is completed, there is a possibility that the image will emerge again after a predetermined period of time has elapsed. For this reason, the halogen lamp 23 is attached to the sheet S immediately before image recording.
By irradiating the erase light from 4, the afterimage on the sheet S is completely erased. After erasing, the stimulable phosphor sheet S is transferred to the pulleys 20 of the conveyor belts 206a and 206b.
8a, 208b and the belts 230a, 230c, and are conveyed downward from the horizontal direction to the vertical direction.

In the clamping unit 304, when the motor 328 is driven, the output shaft 329 of the gear box 326 rotates, and the rotational force is transmitted to the shaft 334 via the gears 330 and 332. That is, by driving the motor 328, the shaft 334 is rotated, and as a result, the pinions 338a and 338b fixed to the shaft 334 are rotated by the rack members 388a and 338b.
Rolls on 388b. Therefore, pinions 338a, 3
38b is rotated in the direction of arrow J shown in FIG. At that time, the block bodies 370a to 370d are connected to the locking member 384a.
384d to be locked, the second presser 3
06 is displaced in the direction away from the first holding body 308, and the shaft 334 is cut out in the notches 396a and 396b of the casing 382.
A gap is defined between the second presser 306 and the first presser 308 . Then, the sheet S conveyed from the conveyance section 200 is dropped and supplied into the gap.

This falling sheet S is placed in contact with placement members 358a and 358b provided at the bottom of the holding unit 304.

Next, the motor 328 is driven to drive the pinions 338a and 33.
8b in the direction of the arrow (see FIG. 4), the pinions 338a, 338b and rack member 388a.

388b, the clamping unit 304 is guided by the guide rods 386a to 386d, and the photographing unit 300
move linearly to the front side. At that time, the second holding body 30
6 is pressed toward the first holding body 308 by the elastic force of the coil springs 380a to 380d, so the sheet S is held between the first holding body 308 and the second holding body 306. In this way, the holding unit 304 containing the sheet S is brought to the photographing position on the front side of the photographing section 300, and the driving of the motor 328 is stopped. Then, when a radiation emitting device (not shown) irradiates a subject in front of the imaging section 300 with radiation, a radiation image of the subject is recorded on the stimulable phosphor sheet S. At this time, by driving the actuator 394 (see FIG. 3) to vibrate the button key 392, unnecessary scattering of radiation is prevented.

After recording an image on the stimulable phosphor sheet S in this way, the motor 328 is driven and the pinions 338a, 3
38b in the direction of arrow J and displaces the clamping unit 304 to its original position, the block bodies 370a to 370d fixed to the first holding body 308 lock into the locking member 38.
4a to 384d. At this time, the drive of the motor 328 is temporarily stopped, and the barcode reading section 398 reads barcode information indicating the sheet number and the like provided on the sheets 1-3. Furthermore, the shaft 350 is sent out by driving the solenoid 348 provided at the lower part of the holding unit 304 (see FIG. 7). As a result, since the pressing plate 352 presses the bottle members 360a, 360b, the arms 356a, 356b move to the support shaft 354a,
The placing members 358a and 358b are separated from the lower end of the sheet S with the center 354b, and the lower side of the holding unit 304 is opened. Then, if the motor 328 is driven to rotate the pinions 338a and 338b in the direction of arrow J,
The first holding body 308 is not displaced because it is locked by the locking members 384a to 384d, and the second holding body 306 compresses the coil springs 380a to 380d and separates from the first holding body 308 side. and the seat S is in the storage section 400.
Fall to the side. Note that after the sheet S falls, the coil spring 36 is activated by reducing the force of the solenoid 348.
1.356a, 35 under the tensile action of 2a, 362b
6b and ffi! The mounting devices 358a, 358b return to their original positions.

On the other hand, when the motor 404 constituting the conveyance system 402 is driven to rotate the first sprocket 406, the second sprocket 408 is rotated via the chain 410 suspended from this, and the second sprocket 408 is engaged with the second sprocket 408. The roller 411 rotates. Therefore, the stimulable phosphor sheet S is conveyed to the receive magazine 422 side while being held between the conveyor belt 412 and nip rollers 418 and 420.

Next, when the solenoid 432 is driven to displace the rod 432a in the direction of the arrow, the swinging member 428 moves to the fulcrum pin 4.
30 as a center, and the lid member 424 swings via an engaging portion 426 with which this swinging member 428 engages. As a result, the sheet storage port 423 of the receive magazine 422 is opened, and the stimulable phosphor sheet S is stored in the receive magazine 422 through the sheet storage port 423.

Then, the solenoid 432 is driven and the rod 432a
is displaced in the opposite direction of the arrow, the lid member 424 swings toward the receive magazine 422 via the swing member 428, and the sheet storage opening 423 is closed.

The stimulable phosphor sheet S stored in the receive magazine 422 after recording the radiation image is, for example, transferred together with the receive magazine 422 to an image reading device (not shown), and the recorded image information is photoelectrically transmitted. The image information is output as a visible image by an image reproducing device such as a laser printer or CRT. On the other hand, when all the stimulable phosphor sheets S stored in the supply magazine 102 are fed out, this supply magazine 102
is taken out from the main body 16 of the apparatus, a predetermined number of stimulable phosphor sheets S subjected to image erasure processing are stored in the supply magazine 102 as required, and then supplied into the main body 16 of the apparatus.

According to the present invention, as described above, when transporting the stimulable phosphor sheet to the imaging position on the distal end side of the protruding imaging section,
Since the sheet is configured to be transported while maintaining its flat shape without being curved, the number of times the sheet is forcibly curved on the transport path is reduced. As a result, the sheet is not subject to excessive fL load, so that the sheet can be used many times. In addition, if the rack member for transporting the holding unit that stores the sheets is configured to be longer, the length of the entire shooting group protruding from the main body of the apparatus can be made longer.
It is possible to further expand the space on the top, bottom, right and left sides of the photographing section, and it is possible to obtain a suitable image recording device with relatively few restrictions on various photographic objects, photographing conditions, etc.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments.
It can also be applied to image recording devices that use conventional XvA film, and the holding member is provided with a protective member to prevent scratches and static electricity from occurring when the sheet is dropped and fed into the nipping unit. Of course, various improvements and changes in design are possible without departing from the gist of the present invention.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conveyance mechanism according to the prior art, FIG. 2 is a perspective view of an image recording apparatus in which the sheet conveyance mechanism according to the present invention is incorporated, and FIG. 3 is a main body of the image recording apparatus of FIG. 2. FIG. 4 is a schematic perspective view of a holding unit yl constituting the sheet transport mechanism according to the present invention, FIG. 5 is an exploded perspective view of the holding unit shown in FIG. 4, and FIG. The figure is a perspective view of the mounting member, solenoid, etc. provided at the lower part of the holding unit 7, an explanatory diagram showing the operating state of the mounting member, solenoid, etc. of FIG. 7a and FIG. FIG. 8 is a partially omitted side explanatory view of the main body of the apparatus including the photographing section in which the sheet transport mechanism according to the present invention is incorporated. 10... Image recording device 16... Device main body 10
0... Supply section 200... Conveyance section 300.
...Photographing section 302...Transfer mechanism 304...
・Holding unit 7) 306.308...Pressing body 3
28--Motor 338a, 338b--
- Pinion 348...Solenoid 358a,
358b... Placement members 384a to 384d... Locking members 386a to 386d... Guide rods 388a, 3
88b = Rack member 400... Storage section

Claims (5)

[Claims] (1) A holding unit consisting of a first holding body and a second holding body, and for moving the second holding body forward and backward with respect to the first holding body and moving the entire holding unit. unit driving means, defining a gap between the first holding body and the second holding body under the driving action of the unit driving means, and feeding the sheet body into the gap; The sheet body is held between the first holding body and the second holding body, the holding unit is linearly moved, and the second holding body is separated from the first holding body, so that the sheet body is held in a pinched state. A sheet body transport mechanism characterized in that it is configured to be released. (2) In the transfer mechanism according to claim 1,
The first presser and the second presser are erected parallel to each other, and a mounting member is disposed at the bottom of the holding unit, and a mounting member driving means for displacing the mounting member is provided. and placing a sheet body fed into the gap between the first holding member and the second holding member on the placing member, and displacing the placing member under the driving action of the placing member driving means. A sheet body transport mechanism configured to drop a sheet body by opening the lower side of a holding unit. (3) In the transfer mechanism according to claim 1 or 2, the unit driving means includes a motor disposed on the second holding body, a pinion is connected to the motor, and the unit drive means is engaged with the pinion. A sheet conveyance mechanism comprising: a rack provided near a clamping unit, and configured to linearly reciprocate the clamping unit via the rack and pinion under the rotational driving action of the motor. (4) In the transfer mechanism according to claim 3,
A locking member for locking the first holding body is disposed at one end of the reciprocating path of the clamping unit, and the clamping unit moves from the other end of the reciprocating path to one end under the driving action of the driving means. When moving to the side, the first holding body comes into contact with the locking member and stops, and the second holding body continues to move and separates from the first holding body, so that the sheet body is held in a pinched state. A sheet body transport mechanism configured to release the. (5) In the transport mechanism according to any one of claims 1 to 4, the sheet body is made of an image recording carrier sheet, and the nipping unit is connected to the sheet transport path to the photographing position of the image recording device. A sheet transport mechanism configured to be movable and transport the image recording carrier sheet to the photographing position via a holding unit that moves under the driving action of a unit driving means.