JPS61140461A - Cumulative fluorescent sheet stacking tray - Google Patents

Abstract

PURPOSE:To prevent a vertically standing sheet from inclining or falling down and to facilitate the accommodation and takeout of the sheet in a cumulative fluorescent sheet stacking tray by providing an opening of the tray with a member having a stopper which prevents the vertically standing sheet from inclining or falling down and which can be withdrawn by an operation outside the tray when the sheets are to be stacked, allowing the sheets to be stacked or to be took out. CONSTITUTION:When a stacking apparatus is charged with a tray 2 therein in the direction shown by an arrow A in the accompanying drawing, a push pin 8 enters the tray 2 through a hole 9c to push the lower portion of the position wherein the support plate 5 is biased by a leaf spring 6. The support plate 5 slides on the inner surface 6b of a casing 9 while being biased by the leaf spring 6 and a stopper 4 is retreated out of an opening 2a into the casing 9. When the tray 2 is drawn out in the direction shown by an arrow B in the drawing in the stacking apparatus, the stopper support plate 5 released from the push pin 8 slides on the inner surface 9b back to the initial position by the resilience of the leaf spring 6 and the stopper 4 is projected again in the opening 2a where the stopper 4 holds a sheet in the tray 2. Therefore, the tray 2 is arranged at a position wherein the sheet 1 vertically stands and does not fall down out of the opening 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a stimulable phosphor sheet accumulation tray having stimulable phosphor sheets accumulated therein, and more particularly to a stimulable phosphor sheet accumulation tray having stimulable phosphor sheets accumulated therein. The present invention relates to a storage tray for stimulable phosphor sheets capable of retaining the phosphor sheets therein even when the sheets are placed in an upright position.

(Technical Background and Prior Art of the Invention) When a certain type of phosphor is irradiated with radiation (X-rays, α-rays, β-rays, γ-rays, ultraviolet rays, etc.), part of the energy of this radiation is transferred to the phosphor. When the phosphor is then irradiated with excitation light such as visible light, the phosphor exhibits stimulated luminescence in response to the accumulated energy. A phosphor exhibiting such properties is called a stimulable phosphor.

Using this stimulable phosphor, radiation image information of a subject such as a human body is stored and recorded on a sheet of stimulable phosphor, and this sheet is scanned with excitation light to produce stimulated luminescence. A radiation image information recording and reproducing method has been proposed in which the exhaustion light is photoelectrically read to obtain an image signal, and this image signal is processed to obtain a radiation image of a subject that is suitable for diagnosis (for example, Japanese Patent Application Laid-Open No. 5-5 No. -12429, No. 56-11395,
No. 55-163472, No. 56-104645, No. 55-116340, etc.). In this method, the final image may be reproduced as a hard copy or reproduced on a display device such as a CRT. In any case, in such a radiation image information recording and reproducing method, since the stimulable phosphor sheet does not ultimately record image information but temporarily carries image information i, this stimulable phosphor sheet The sheet may be used repeatedly, and such repeated use is extremely economical. Therefore, in order to use the stimulable phosphor sheet repeatedly, it is necessary to remove the radiation energy remaining in the stimulable phosphor sheet after the image information has been read by scanning with excitation light. Afterimages are erased. This afterimage is erased by, for example, irradiating the entire surface of the sheet with light included in the excitation wavelength range of the stimulable phosphor constituting the sheet, heating the sheet, etc. The body sheet is again used to record image information. In such a process, the stimulable phosphor sheet from which the afterimage has been erased is once accumulated on a sheet accumulation tray and transported to the recording section, where the sheet is removed by a sheet ejecting mechanism such as a suction arm on the recording section side. The images are taken out one by one and used to record radiographic images. However, in this recording section, when the tray is loaded or when the sheet is taken out from the tray for recording after loading the tray, the sheets accumulated parallel to the inner wall surface facing the opening surface of the tray stand upright. In some cases, the tray is arranged or rotated in this manner, and in such a case, there is a problem in that the stacked sheets fall outside the tray opening surface.

(Object of the Invention) The present invention provides that even when the sheets accumulated inside are arranged in an upright state as described above, the sheets do not fall down outside the opening. It is an object of the present invention to provide a stacking tray for stimulable phosphor sheets having a structure that allows the stacked sheets to be taken out or stored easily and reliably.

(Structure of the Invention) The accumulation tray of stimulable phosphor sheets of the present invention includes a stopper that can protrude inward from the center of the side edge of the opening surface, and a stopper that supports the stopper and can be operated from the outside. A seat tipping prevention member is provided, which includes a support means for moving the seat in and out of the opening surface, and when the seat inside is in an upright state, the stopper prevents the seat from tipping over to the outside of the opening surface, and the seat When stacking, the support means is configured to move the stopper away from the opening surface by an external operation.The stopper a'#J prevents the sheets inside the tray from falling down. The support means is sized to prevent the sheets accumulated in the tray from being taken out one by one by an external member, and the support means can be operated from the outside to move the stopper into or out of the opening surface. The stopper is supported so as to be moved in and out, and for example, the stopper is supported so as to be biased inward of the opening surface by a spring force, and the stopper is moved out of the opening surface by an external operation. Alternatively, the stopper may be held by a member that engages with a grooved cam, and by rotating this grooved cam by external operation, this member is moved to move the stopper into and out of the opening surface. .

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view schematically showing the structure of a stacking tray for stimulable phosphor sheets according to a first embodiment of the present invention.

A tray 2 in which the stimulable phosphor sheet 1 is accumulated in parallel to the inner wall surface facing the opening surface 2a (see FIG. 2).
At the center of the - side end surface, a sheet tipping prevention member 3 consisting of a stopper 4 made of a plastic surface with a raised material affixed and a support means 11 is provided. This support means 11 has a stopper 4 at one end, a dogleg-shaped support plate 5 with an edge 5a serving as a fulcrum in contact with one side end surface of the tray, and a support plate 5 near the other end of the support plate 5. It is comprised of a plate spring 6 whose one end is joined to a surface opposite to the surface on which the stopper 4 is provided and which urges the stopper 4 inward toward the opening surface. The sheet tipping prevention member 3 prevents the sheets from collapsing even if the tray 2 is arranged so that the sheets 1 accumulated in the tray 2 stand upright, because the stopper 4 protruding inward of the opening surface contacts the sheets. 1 from falling outward from the opening surface 2a. Further, the seat fall prevention member 3 is provided in a storage case 9 that is provided integrally with the side wall of the tray 2, and the leaf spring 6 is connected to an inner wall surface 9a of the case 9 facing the tray and to the supporting case 9. The other end of the plate 5 is in slidable contact with the lower end inner wall surface 9b.

On the other hand, when stacking the sheets 1 on the tray 2, the tray 2, which is loaded in the sheet stacking device so that the opening surface 2a faces upward and is diagonally upright or horizontal, is loaded as shown in FIG. The sheets 1 are fed in one by one by the introduction roller 7 provided above the tray 2 near the opening 2a, but if the stopper 4 protrudes into the opening surface when stacking the sheets, this may impede the stacking of the sheets. In order to become
As shown in FIG. 1, when the tray 2 is loaded into the stacking device in the six directions of the arrows, the push rod 8 provided on the stacking device side presses the support plate 5 of the sheet collapse prevention member 3. The stopper 4 is moved away from the opening surface 2a. The function of this push rod 8 will be explained in more detail using FIGS. 3A and 3B.

FIG. 3A is a partially enlarged view of FIG. 1 showing the tray 2 loaded into the stacking device.

When the tray 2 is loaded into the stacking device in the six directions of the arrows, the push rod 8 enters through the hole 9C of the case 9 and presses the support plate 5 below the joining position with the leaf spring 6. The pressed support 5 slides on the inner wall surface 9b of the lower end of the case 9 toward the side end surface of the tray 2 while bending the leaf spring 6, and accordingly, the support 5 is provided at one end of the support 5. The stopper 4 moves into the case 9 and exits from the opening surface 2a of the tray 2. Further, as shown in FIG. 3B, when the tray 2 is pulled out of the stacking device in the direction of arrow B, the push rod 8 is moved from the support 5.
, the support body 5 slides the inner wall surface 9b of the lower end of the case 9 to the side opposite to the side end surface of the tray 2 due to the action of the force of the bent leaf spring 6 trying to restore its original shape. Since it returns to the position, the stopper 4 comes to protrude again into the opening surface 2a to the position where it presses the sheet in the tray. Since the tray 2 is transported to the recording and communication equipment with the sheet tipping prevention member 3 in the above-mentioned state, the tray 2 is placed in a position such that the sheet 1 inside stands upright, as shown in FIG. Even if the sheet 1 is rotated or rotated, the sheet 1 inside comes into contact with the stopper 4 and is prevented from falling out of the opening surface 2a. Further, since the sheet 1 is flexible, when the sheet 1 is sucked by the suction cup 10 in the recording section and taken out of the tray 2, the sheet 1 comes into contact with the stopper 4 and curves. Since the sheet is taken out, the stopper 4 does not get in the way when the sheet is taken out. In this embodiment, the stopper 4 is biased by a spring force, and when the sheet 1 comes into contact with the projection 4 when taking out the sheet, the stopper 4 escapes to the outside of the opening surface 2a, so that the sheet can be taken out more easily. be able to. Furthermore, if the surface of the stopper 4 that comes into contact with the sheet 1 is formed into a tapered surface that is inclined in the sheet removal direction, the sheet can be taken out even more easily. Furthermore, when the sheet 1 is sucked by the suction cup 10 and taken out of the tray 2, the sheet comes into contact with the stopper 4 and is taken out in a curved manner as described above, so that the sheets come into close contact with each other. Even if the sheets are stacked, the sheets will not be taken out while being overlapped, and the second and subsequent sheets will be reliably separated.

Therefore, the stopper 4 prevents the inconvenience of the second and subsequent sheets being taken out overlapping each other,
It also has the effect of being able to reliably take out the sheets one by one.

In the above embodiment, the stopper 4 is removed by a push rod at the same time as loading into the accumulating device, but the means for removing the stopper is limited to the push rod. Instead, it may be operated from outside using another member. Further, the sheet collapse prevention member may be provided on both sides of the tray 2 instead of on one side.

Next, other embodiments of the present invention will be described with reference to FIGS. 5 and 6. In this embodiment, the stopper 4 is moved in and out of the opening surface without using the biasing force of the spring b.

The tray 2 has a lock lever 11 on the outside of the upper part of its one end surface. When loading the tray 2 into the stacking device, the lock lever 11 is rotated so that the lock lever receiver on the stacking device side engages with the part 12. The tray is then fixed in the accumulating device. The support shaft 13 of the lock lever 11 passes through the upper part of the tray and projects outward from the other end surface of the tray, and a grooved cam 14 is integrally provided at the projecting tip. On the other hand, the seat fall prevention member 103 includes a support rod 105, a protrusion 106 provided at one end of the support rod 105 and engaged with the groove 14a of the groove cam 14, and the support rod 103.
The support rod 105 has a stopper 104 provided at the other end of the support rod 105, and the center portion of the support rod 105 is movably locked by a bottle 108 on a substrate 107 planted on the side wall surface of the tray 2. has been done.

Since the protrusion 106 of the support rod 105 engages with the groove 148 of the grooved cam 14, both ends of the support rod 105 rotate in the circumferential direction around the engagement position with the bottle 108 as the grooved cam 14 rotates. Moving. The grooved cam 14 is provided with the stopper 104 when the lock lever 11 is rotated so as to engage with the lock lever receiver 12 when the tray is loaded into the stacking device.
is removed from the frontage surface 2a, and when the lock lever 11 is rotated so as to be removed from the lock lever receiver 12, the support rod 1 is moved so that the stopper 104 protrudes into the opening 112a.
A groove 14a is provided in which the 05 moves. Therefore, when the tray 2 is loaded into the stacking device and the tray 2 is locked in the stacking device, the stopper 10 is moved in conjunction with the locking operation.
4 moves out of the opening, making it possible to accumulate sheets, and when the tray 2 is unlocked, the stopper 104 is always
is located within the opening surface to prevent the sheet from falling over and falling over. Note that this stopper has a size that allows the sheet to be taken out due to its flexibility when taking out the sheets one by one using a suction cup in the recording section.

Furthermore, in this embodiment, the grooved cam moves in conjunction with the operation of the lock lever, but the operation of the grooved cam is
It is also possible to use a member separate from the lever.

Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to these. A stopper that can take two positions, inside and outside the opening surface of the tray, prevents debris from falling when the sheet is upright. As long as it is possible to do so, it can be implemented in various ways.

(Effects of the Invention) As described above in detail, the stimulable phosphor sheet accumulation tray of the present invention is provided with a sheet fall prevention member having a stopper that can protrude inward from the opening surface of the tray. As a result, even if the tray is arranged in such a manner that the sheets accumulated in the tray stand upright, the sheets will not fall down to the outside of the opening surface. In addition, since the stopper can be removed from the opening surface of the tray, it can be removed from the opening surface as required for sheet stacking, and it can also be moved in conjunction with loading and locking the tray into the stacking device. A simple mechanism can produce great effects if the stone is moved in a straight line.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the structure of a stacking tray for stimulable phosphor sheets according to an embodiment of the present invention, FIG. 2 is a sectional view showing the stacking tray in a state when sheets are stacked, FIG. Figure 3B is a partially enlarged view of the stacking tray showing the state of the sheet tipping prevention member when the stacking tray is attached to and removed from the stacking device, Figure 4 is a sectional view showing the function of the seat tipping prevention member, and Figure 5 is a cross-sectional view showing the function of the sheet tipping prevention member. FIG. 6 is a plan view showing the structure of a stacking tray according to another embodiment of the present invention; FIG.
Fig. 72. 1...Storage phosphor sheet 2...Tray 3.
・・Seat collapse prevention member 4.104・Stopper 5・Support plate 6・
...Plate spring 8...Push rod 14...Groove cam-
105...Support rod 106...Protrusion (self-procedural amendment Commissioner of the Japan Patent Office rIIlli? February 2010, 278 Japanese Patent Application No. 59-263502 2, name of invention Accumulating tray of stimulable phosphor sheet 3. Relationship with the person making the amendment Patent applicant Address 210 Nakanuma, Minamiashigara City, Kanagawa Prefecture Name Name
Fuji Photo Film Co., Ltd. (1 idiot) 4. Agent 5. Date of amendment order None 6. Number of inventions increased by amendment None 7. Subject of amendment ``Detailed description of the invention'' in Document II Column and drawing 8,
Contents of correction

Claims (2)

[Claims] (1) In a stimulable phosphor sheet accumulation tray in which stimulable phosphor sheets are accumulated one by one in parallel with the inner wall surface facing the opening surface, allowing the sheets to be taken out by an external member; and when the tray is in a position where the sheets inside are upright, from the center of the side edge of the opening surface of the tray to the inside of the opening surface so as to prevent the sheet from collapsing outward of the opening surface. an extrudable stopper;
1. A stacking tray for stimulable phosphor sheets, comprising a sheet collapse prevention member comprising a support means for supporting the stopper and moving the stopper in and out of the opening surface by an external operation. (2) The stimulable phosphor integrated tray according to claim 1, wherein the stopper of the fall prevention member is urged by a spring force and protrudes inward of the opening. .