Patent Publication Number: US-10772589-B2

Title: Receiving device and X-ray imaging apparatus having the same

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a Continuation-In-Part of application Ser. No. 14/861,436, filed Sep. 22, 2015, issued as U.S. Pat. No. 10,219,764 B2 on Mar. 5, 2019, which claims priority from Korean Patent Application No. 10-2014-0127201, filed on Sep. 23, 2014 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
    
    
     BACKGROUND 
     1. Field 
     Embodiments of the present invention relate to a receiving device in which a detector is accommodated and an X-ray imaging apparatus having the same. 
     2. Description of the Related Art 
     An X-ray imaging apparatus is a non-invasive diagnostic apparatus that radiates X-rays to a subject, detects X-rays transmitted through the subject, and can image an internal structure of the subject. 
     Since general X-ray imaging apparatuses have an X-ray source and an X-ray detector, which are fixed in a certain space, a patient moves to a laboratory in which the X-ray imaging apparatus is positioned and moves his or her body to adjust to the apparatus in order to perform X-ray imaging. 
     However, since movement-impaired patients have difficulty in imaging using general X-ray imaging apparatuses, a mobile X-ray imaging apparatus capable of performing X-ray imaging at any place was developed. 
     The mobile X-ray imaging apparatus can perform X-ray imaging by directly visiting movement-impaired patients since an X-ray source is mounted in a movable main body and a portable X-ray detector is used. 
     The mobile X-ray imaging apparatus includes a receiving unit, and the portable X-ray detector may be accommodated in the receiving unit. For convenience of X-ray imaging, portable X-ray detectors of various sizes have been recently provided. 
     When a portable X-ray detector of a small size is accommodated in a receiving container that is provided according to a size of a portable X-ray detector of a large size, the portable X-ray detector may move in the receiving container when the mobile X-ray imaging apparatus is moved. Therefore, the portable X-ray detector comes in contact with an inner sidewall of the receiving container so that noise may be generated or the portable X-ray detector may be damaged. 
     In order to prevent the portable X-ray detector from being unstably accommodated in the receiving unit, the receiving unit of the mobile X-ray imaging apparatus may include the receiving container in which receiving units according to sizes of portable X-ray detectors having various sizes are provided to accommodate portable X-ray detectors of various sizes. In this case, since a size of the receiving unit in which the portable X-ray detector is accommodated increases, space utilization is limited. 
     SUMMARY 
     According to an embodiment of the present invention, a receiving device in which detecting devices of various sizes can be stably accommodated in a receiving unit and an X-ray imaging apparatus having the same may be provided. 
     According to an aspect of the present invention, there is provided a receiving device having a receiving unit in which a first detecting device is accommodated, the receiving device including: a fixer provided in the receiving unit and into which a part of a side surface of the first detecting device is inserted in order to prevent the first detecting device from being moved; and a detector support having a side that is connected to a rotating shaft and tiltable and configured to support at least one side surface of a second detecting device having a smaller size than the first detecting device. 
     An elastic member may be provided between the detector support and an inner side surface of the receiving unit, and the elastic member may provide an elastic force of pushing the detector support from the inner side surface of the receiving unit. 
     When the first detecting device is inserted into the receiving unit, the detector support may be pressed by the first detecting device and tilted to the inner side surface of the receiving unit. 
     A support bracket configured to support the elastic member may be provided behind the detector support. 
     The detector support may be rotatably mounted in a side support that is mounted in an inner side surface of the receiving unit. 
     When the second detector is inserted into the receiving unit, at least one side surface of the second detector may be supported by the side support. 
     The detector support may have a tilting angle that is restricted by a tilting restricting portion provided in the form of a groove or a hole in a side surface. 
     The tilting restricting portion may be provided to be a part of a concentric circle having the same center of rotation as a circle drawn by ends of the detector support. 
     The side support may include an intervention unit inserted into the tilting restricting portion. 
     The fixer may include a bottom fixer provided in a lower part of the receiving unit and configured to support a bottom of the first detecting device or a bottom of the second detecting device. 
     When the first detecting device or the second detecting device is mounted in the bottom fixer, the first detecting device or the second detecting device may be charged. 
     The fixer may include a side fixer having an insertion groove into which parts of both side surfaces of the first detecting device are inserted. 
     The side fixer may be provided in the left and right sides of the receiving unit. 
     A rail may be provided in an inner side surface of the receiving unit, and the detector support may be movable along the rail. 
     A plurality of the detector supports may be provided. 
     According to another aspect of the present invention, there is provided an X-ray imaging apparatus, including: a movable main body; an X-ray generator mounted in the main body and configured to generate X-rays; a detecting device configured to detect X-rays generated from the X-ray generator; a receiving device mounted in the main body and having a receiving unit in which the detecting device is accommodated; and a detector support configured to support a side surface of a detecting device having a smaller horizontal length than the receiving unit. 
     The detector support may be tiltable with respect to a rotation axis. 
     An elastic member may be provided between the detector support and an inner side surface of the receiving unit. 
     The elastic member may have a directional elastic force that increases a distance between the detector support and the inner side surface of the receiving unit. 
     When a detecting device having a horizontal length corresponding to a horizontal length of the receiving unit is inserted into the receiving unit, the detector support may be pressed by the detecting device, and a distance between the detector support and an inner side surface of the receiving unit may decrease. 
     The detector support may be tiltably mounted in a body in which a receiving unit in which the detector support is able to be accommodated is formed. 
     The receiving unit may have left and right inner sides having a side fixer into which a part of at least one side surface of the detecting device is inserted and fixed. 
     The receiving unit may have a lower part including a bottom fixer in which a mounting groove in which the detecting device is mounted and fixed is formed. 
     When the detecting device is mounted in the bottom fixer, the detecting device may be charged. 
     The receiving device may include a rail that horizontally extends, and the detector support may be movable along the rail. 
     The rail may further include a stopper configured to restrict movement of the detector support. 
     A plurality of the detector supports may be provided. 
     The plurality of detector supports may be movable along a rail provided in the receiving device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       These and/or other aspects of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which: 
         FIG. 1  is a diagram illustrating a mobile X-ray imaging apparatus according to an embodiment of the present invention; 
         FIG. 2  is a perspective view of a receiving device according to an embodiment of the present invention; 
         FIG. 3  is a diagram illustrating a configuration of a receiving device according to an embodiment of the present invention; 
         FIG. 4  is a diagram illustrating a state in which a guide is mounted in a receiving device according to an embodiment of the present invention; 
         FIG. 5  is an exploded perspective view of a guide according to an embodiment of the present invention; 
         FIG. 6  is a diagram illustrating a guide according to an embodiment of the present invention; 
         FIG. 7  is a side view of a guide when the guide according to an embodiment of the present invention is in a first position; 
         FIG. 8  is a side view of a receiving device when a guide according to an embodiment of the present invention is in a first position; 
         FIG. 9  is a side view of a guide when the guide according to an embodiment of the present invention is in a second position; 
         FIG. 10  is a side view of a receiving device when the guide according to an embodiment of the present invention is in a second position; 
         FIG. 11  is an exploded perspective view of a guide according to another embodiment of the present invention; 
         FIG. 12  is a diagram illustrating a guide according to another embodiment of the present invention; 
         FIG. 13  is a side view of a guide when the guide according to another embodiment of the present invention is in a first position; 
         FIG. 14  is a side view of a receiving device when a guide according to another embodiment of the present invention is in a first position; 
         FIG. 15  is a side view of a guide when the guide according to another embodiment of the present invention is in a second position; 
         FIG. 16  is a side view of a receiving device when a guide according to another embodiment of the present invention is in a second position; 
         FIG. 17  is a diagram illustrating a part of a receiving device according to still another embodiment of the present invention; and 
         FIG. 18  is a diagram illustrating a part of a receiving device according to still another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, a receiving device according to an embodiment of the present invention and an X-ray imaging apparatus having the same will be described in detail with reference to the drawings. 
       FIG. 1  is a diagram illustrating a mobile X-ray imaging apparatus according to an embodiment of the present invention. 
     As illustrated in  FIG. 1 , a mobile X-ray imaging apparatus  1  according to the embodiment of the present invention may include an X-ray generator  2  and a detecting device  3 . The X-ray generator  2  may be mounted in a main body  4 , and the detecting device  3  may be accommodated in a receiving device  10  provided in the main body  4 . The main body  4  is movable by a caster  6 . The main body  4  includes a handgrip  41 . A user may move the main body  4  by grasping and pushing or pulling the handgrip  41 . 
     The X-ray generator  2  may receive a driving force from a driving unit (not illustrated) provided in the main body  4  and generate X-rays. X-ray energy may be controlled by a tube voltage. An intensity or a dose of X-rays may be controlled by a tube current and an X-ray exposure time. 
     The X-ray generator  2  is movable together with the main body  4 . The main body  4  may include a moving unit  5 . The moving unit  5  may include a first guide rail  51  and a second guide rail  52 . The first guide rail  51  and the second guide rail  52  may be installed to form a predetermined angle. 
     As an example, the first guide rail  51  may be perpendicular to the second guide rail  52 . The first guide rail  51  may vertically extend from a bottom surface on which the main body  4  is mounted. The second guide rail  52  may horizontally extend from the bottom surface on which the main body  4  is mounted. The second guide rail  52  is movable along the first guide rail  51 . The first guide rail  51  may extend in a y axis direction, the second guide rail  52  may extend in an x axis direction, and the second guide rail  52  is movable in a vertical direction (direction A) along the y axis. 
     The X-ray generator  2  may be mounted in the second guide rail  52 . The X-ray generator  2  is movable in a direction in which the second guide rail  52  extends. That is, the X-ray generator  2  is movable in a direction (direction B) that is horizontal to the bottom surface along the x axis. 
     Also, the X-ray generator  2  is rotatable about the x axis or a z axis. The X-ray generator  2  is connected to the second guide rail  52  by a rotary joint  53  that is rotatable, and may rotate (direction C) about the x axis or rotate (direction D) about the z axis by a connecting unit  53 . 
     A position and an angle of rotation of the X-ray generator  2  may be regulated by the moving unit  5  and the rotary joint  53  according to a position of a subject to be imaged using X-rays. 
     The main body  4  may include a driving unit configured to regulate the position and angle of rotation of the X-ray generator  2 . The driving unit may be a motor that is electrically driven. 
     A manipulating unit configured to input various pieces of information about X-ray imaging and manipulate respective devices may be provided at a side of the main body  4 . The manipulating unit may receive a command from a user and transmit the command to a control unit, which will be described below. 
     The control unit (not illustrated) may be provided inside the main body  4 . The control unit may control the X-ray generator  2  to control x-ray generation. Also, the control unit may receive an electrical signal from the detecting device  3  and generate an X-ray image. 
     A mobile detecting device  3  may be provided. The detecting device  3  may be accommodated in a receiving unit  11  of the receiving device  10  that is provided in the main body  4 . The detecting device  3  may be moved to a position at which X-ray imaging is required along with the main body  4 . When X-ray imaging is required, the user may withdraw the detecting device  3  from the receiving device  10 , enable the detecting device  3  to be positioned behind the subject to be imaged using X-rays, and perform X-ray imaging. 
     The detecting device  3  may include a detector and a grid. The detector may detect X-rays that pass through the subject and convert the X-rays into an electrical signal. X-ray data of the subject may be obtained by the detector. The grid may be positioned in front of the detector to block scattered rays of X-rays generated from the X-ray generator  2 . 
     The detecting device  3  may be fixed not to move in the receiving unit  11  provided in the receiving device  10 . The receiving unit  11  may be provided according to a size of the detecting device  3  and fix at least one side of the detecting device  3 . Therefore, it is possible to prevent the detecting device  3  from moving in the receiving unit  11 , colliding with an inner side surface of the receiving device  10  forming the receiving unit  11 , and generating noise, or prevent the detecting device  3  from being damaged. 
     The detecting device  3  may have a substantially rectangular shape. A shape of the detecting device  3  is not limited to the rectangular shape. However, the detecting device  3  will be described below as having a rectangular shape. 
     When X-ray imaging is performed, the detecting device  3  of a different size may be used as necessary. For example, the detecting device  3  of a large or small size may be used according to an area of the subject to be imaged using X-rays. The detecting device  3  having a square shape may be used, or the detecting device  3  having a rectangular shape whose horizontal length is greater than a vertical length may be used. 
     If the receiving unit  11  provided in the receiving device  10  is provided according to a size of the biggest detecting device  3 , when a detecting device having a smaller size than the biggest detecting device  3  is inserted into the receiving unit, the detecting device may collide with an inner side surface of the receiving device forming the receiving unit according to movement of the main body  4 , and the detecting device may be damaged, or clattering noise may be generated. 
     In order to accommodate and fix the detecting devices  3  of different sizes not to move, a structure in which receiving units of various sizes are provided in the receiving device to correspond to various sizes of detecting devices may be considered. In this case, since a plurality of receiving units of different sizes need to be provided in the receiving device, space utilization may be limited. 
     Hereinafter, the receiving device  10  in which detecting devices of different sizes can be stably accommodated without constraints on space utilization of the receiving device  10  will be described. 
       FIG. 2  is a perspective view of a receiving device according to an embodiment of the present invention.  FIG. 3  is a diagram illustrating a configuration of a receiving device according to an embodiment of the present invention.  FIG. 4  is a diagram illustrating a state in which a guide is mounted in a receiving device according to an embodiment of the present invention. 
     As illustrated in  FIGS. 2 to 4 , the receiving device  10  according to the embodiment of the present invention may include the receiving unit  11  in which the detecting device  3  can be accommodated. The receiving unit  11  may be formed to correspond to the size of the biggest detecting device among detecting devices of various sizes that can be used when X-ray imaging is performed. 
     A flange portion  15  may be formed at a side of the receiving device  10 . The receiving device  10  may be combined with the main body  4  by the flange portion  15  and a fastening member penetrating through a side of the main body  4 . A method in which the receiving device  10  is mounted in the main body  4  is not limited to the above. The receiving device  10  may be fixed to the main body  4 , and detachable from the main body  4 . 
     Fixers  12  and  13  into which a part of the detecting device  3  can be inserted and fixed may be provided in the receiving unit  11 . The fixers  12  and  13  may include the side fixer  12  into which parts of the left and right sides of the detecting device  3  can be inserted and fixed and the bottom fixer  13  configured to support a bottom surface of the detecting device  3 . 
     The side fixer  12  may include a first side fixer  12   a  and a second side fixer  12   b  which are provided in the left and right sides of the receiving unit  11 , respectively. A first insertion groove  120   a  and a second insertion groove  120   b  into which parts of the left and right sides of the detecting device  3  can be inserted may be provided in the first side fixer  12   a  and the second side fixer  12   b . Widths D 1  of the first insertion groove  120   a  and the second insertion groove  120   b  may correspond to a width d 1  of a side surface of the detecting device  3 . 
     A part of a side surface of the detecting device  3  may be inserted into and fixed to the first insertion groove  120   a  and the second insertion groove  120   b . The first insertion groove  120   a  and the second insertion groove  120   b  may extend in a vertical direction such that the part of the side surface of the detecting device  3  may be slidably inserted. 
     A length L 1  from one surface  121   a  of the first insertion groove  120   a  to one surface  121   b  of the second insertion groove  120   b  may correspond to a horizontal length of a detecting device having the greatest horizontal length among detecting devices of various sizes that can be used when X-ray imaging is performed. The detecting device having the greatest horizontal length may slide in a longitudinal direction of the first insertion groove  120   a  and the second insertion groove  120   b  when a part of a left side of the detecting device  3  is inserted into the first insertion groove  120   a  and a part of a right side of the detecting device  3  is inserted into the second insertion groove  120   b . Therefore, the detecting device may be accommodated in the receiving unit  11 , inserted into the first insertion groove  120   a  and the second insertion groove  120   b , and the left and right sides may be fixed not to move. 
     The bottom fixer  13  may include a mounting portion  130  on which a bottom of the detecting device  3  may be mounted. A part of the bottom of the detecting device  3  may be inserted into the mounting portion  130 . A part of the bottom of the detecting device  3  may be inserted into the mounting portion  130  and fixed not to move. A width D 2  of the mounting portion  130  may correspond to a width d 2  of the bottom of the detecting device  3 . 
     The bottom fixer  13  may be formed of a material capable of absorbing an impact to prevent an impact that may be applied to the detecting device  3  in a process in which the detecting device  3  is accommodated in the receiving unit  11  of the receiving device  10 . As an example, the bottom fixer  13  may be formed of an elastic material. Preferably, at least a part of the bottom fixer  13  coming in contact with the detecting device  3  may be formed of an elastic material. In other words, at least a part of the mounting portion  130  of the bottom fixer  13  may be formed of an elastic material. As an example, the elastic material may include rubber, silicone, and the like. 
     A connector  300  capable of charging the detecting device  3  may be provided in the receiving unit  11  of the receiving device  10 . Specifically, the connector  300  may be provided at the bottom fixer  13 . More specifically, the connector  300  may be provided at the mounting portion  130  on which the bottom of the detecting device  3  is mounted. When the detecting device  3  is accommodated in the receiving unit  11  of the receiving device  10 , a terminal  310  (see  FIG. 8 ) provided in the detecting device  3  and the connector  300  provided in the receiving device  10  may come in contact with each other. By such a structure, the detecting device  3  may be charged while being accommodated in the receiving unit  11  of the receiving device  10 . As an example, the terminal  310  provided in the detecting device  3  and the connector  300  provided in the receiving device  10  may be docked by a magnetic force. Also, the detecting device  3  may transmit and receive an electrical signal to and from the control unit (not illustrated) by being docked to the connector  300  provided in the receiving device  10 . 
     A support  14  capable of supporting a rear surface of the detecting device  3  may be provided in the inner side surface of the receiving device  10  forming the receiving unit  11 . The support  14  may be provided in at least one of an inner front surface  110  and an inner rear surface  111  of the receiving device  10  forming the receiving unit  11 . 
     A length D 3  by which the support  14  protrudes forward may correspond to a length D 4  from the inner rear surface  111  of the receiving device  10  to the first insertion groove  120   a  and the second insertion groove  120   b  of the side fixers  12   a  and  12   b  provided at each side of the receiving unit  11 . When the left and right sides of the detecting device  3  are inserted into the first insertion groove  120   a  and the second insertion groove  120   b , the rear surface of the detecting device  3  may be supported by the support  14 . Therefore, the detecting device  3  may be stably accommodated in the receiving unit  11 . 
     A guide  20  may be provided in the inner side surface of the receiving device  10  forming the receiving unit  11 . The guide  20  may be provided in at least one of the inner front surface  110  and the inner rear surface  111  of the receiving device  10  forming the receiving unit  11 . Hereinafter, a case in which the guide  20  is provided in the inner front surface  110  of the receiving device  10  will be described. 
     The guide  20  includes a first side portion  21  and a second side portion  22  which are disposed to face each other with a predetermined interval therebetween. A detector support  23  configured to rotate a predetermined angle with respect to a rotation axis may be provided between the first side portion  21  and the second side portion  22 . 
     The guide  20  may support a front surface of the detecting device  3  or a side surface of the detecting device  3 . When a horizontal length L of the detecting device  3  is the same as a length L 1  from the one surface  121   a  of the first insertion groove  120   a  formed in the first side fixer  12   a  to the one surface  121   b  of the second side fixer  12   b , the guide  20  may support the front surface of the detecting device  3 . 
     When a length from the one surface  121   a  of the first insertion groove  120   a  to the first side portion  21  of the guide  20  is set to L 2 , and a length from the second side portion  22  of the guide  20  to the one surface  121   b  of the second insertion groove  120   b  is set to L 3 , a one-side surface of the detecting device  3  whose horizontal length is L 2  comes in contact with the one surface  121   a  of the first insertion groove  120   a , and the other-side surface may be inserted into the receiving unit  11  to come in contact with the first side portion  21  of the guide  20 . The detecting device  3  whose horizontal length is L 2  may be fixed not to move inside the receiving unit  11  when a right-side surface is inserted into and fixed to the first insertion groove  120   a , and a left-side surface is supported by the first side portion  21  of the guide  20 . 
     Also, the detecting device  3  whose horizontal length is L 3  may be inserted into the receiving unit  11  such that a one-side surface thereof comes in contact with the one surface  121   b  of the second insertion groove  120   b , and the other-side surface thereof comes in contact with the second side portion  22  of the guide  20 . The detecting device  3  whose horizontal length is L 3  may be fixed not to move inside the receiving unit  11  when a right-side surface is supported by the second side portion  22  of the guide  20  and a left-side surface is inserted into and fixed to the second insertion groove  120   b.    
     Hereinafter, a detailed configuration of the guide  20  will be described in detail with reference to the drawings. 
       FIG. 5  is an exploded perspective view of a guide according to an embodiment of the present invention.  FIG. 6  is a diagram illustrating a guide according to an embodiment of the present invention. 
     As illustrated in  FIGS. 5 and 6 , the guide  20  according to the embodiment of the present invention includes the detector support  23  that is pivotally mounted on the inner side surface of the receiving device  10 . The detector support  23  may be mounted on the inner side surface of the receiving device  10  by the first side portion  21  and the second side portion  22 . The first side portion  21  and the second side portion  22  may be disposed to face each other with a predetermined interval therebetween and fixed to the inner side surface of the receiving device  10 . 
     The detector support  23  may be positioned between the first side portion  21  and the second side portion  22 . The detector support  23  may be pivotally mounted on the first side portion  21  and the second side portion  22  by a rotating shaft  26 . The rotating shaft  26  may pass through a rotating shaft insertion hole  210  formed in the first side portion  21 , a rotating shaft insertion hole  230  formed at a side of the detector support  23 , and a rotating shaft insertion hole  220  formed in the second side portion  22 . The detector support  23  may be pivoted about the rotating shaft  26 . 
     An elastic member  24  may be provided between one surface of the detector support  23  and the inner front surface  110  of the receiving device  10 . The elastic member  24  may provide an elastic force such that the detector support  23  faces the inner rear surface  111  of the receiving device  10 . That is, the elastic member  24  may provide an elastic force of pushing the detector support  23  from the inner front surface  110  to the detector support  23 . The elastic member  24  may be a spiral spring. 
     The receiving device  10  may include a support bracket  25  configured to support the elastic member  24 . The support bracket  25  may be positioned between the detector support  23  and the inner front surface  110  of the receiving device  10 . The support bracket  25  may be mounted on at least one of the first side portion  21  and the second side portion  22 . When the detector support  23  is pressed by the detecting device  3  that is inserted into the receiving unit  11 , the elastic member  24  may be compressed between the detector support  23  and the support bracket  25 . 
     The support bracket  25  may include an elastic member fixer  250 . As an example, the elastic member fixer  250  may protrude from one surface of the support bracket  25 , and the elastic member  24  may be mounted in the elastic member fixer  250 . 
     The detector support  23  may include an elastic member insertion groove  232  into which the elastic member  24  can be inserted. The elastic member  24  has a position that is fixed by the elastic member fixer  250  of the support bracket  25 , is inserted into the elastic member insertion groove  232 , and can press the other side of the detector support  23  backward. 
     A rotation restricting portion  231  may be provided in a side portion of the detector support  23 . The rotation restricting portion  231  may be provided in the form of a groove or a hole having a predetermined length. An intervention unit  211  that can be inserted into the rotation restricting portion  231  may be provided in any of the first side portion  21  and the second side portion  22 .  FIG. 5  illustrates an embodiment in which an intervention hole  211   a  into which the intervention unit  211  can be inserted is formed in the first side portion  21 , and the intervention unit  211  is inserted into and fixed to the intervention hole  211   a . A configuration of the intervention unit  211  is not limited to the above. The intervention unit  211  may protrude from the first side portion  21  together with the first side portion  21 . 
     The intervention unit  211  is inserted into the rotation restricting portion  231 , and may restrict an angle at which the detector support  23  rotates forward or backward. In this case, the rotation restricting portion  231  may be formed to be a part of a concentric circle having the same center of rotation as a circle drawn by ends of the detector support  23  when the detector support  23  rotates about the rotating shaft  26 . 
     Hereinafter, an operation of the guide  20  when the detecting device  3  of a different size is inserted into the receiving unit  11  will be described. 
       FIG. 7  is a side view of a guide when the guide according to an embodiment of the present invention is in a first position.  FIG. 8  is a side view of a receiving device when a guide according to an embodiment of the present invention is in a first position. 
     As illustrated in  FIGS. 7 and 8 , when the detecting device  3  is inserted into the receiving device  10  according to the embodiment of the present invention, the detector support  23  may be rotated forward (direction t 1 : refer to  FIG. 7 ) by the detecting device  3 . In this case, a length L by which the detecting device  3  horizontally extends may correspond to a length L 1  from the one surface  121   a  of the first insertion groove  120   a  to the one surface  121   b  of the second insertion groove  120   b  of the side fixer  12  provided in the receiving device  10 . 
     In the detecting device  3 , a part of a side surface of the detecting device  3  may be slidably inserted into the first insertion groove  120   a  and the second insertion groove  120   b  formed in the first side guide  12   a  and the second side guide  12   b . In the detector support  23 , one side is rotatable by the rotating shaft  26  and the other side may face behind the receiving device  10  due to an elastic force of the elastic member  24 . The other side of the detector support  23  may be rotated at a predetermined angle by the rotation restricting portion  231  and the intervention unit  211  and then stopped. The other side of the detector support  23  may come in contact with the inner rear surface  111  of the receiving device  10  forming the receiving unit  11 . 
     The detecting device  3  may slide along the first insertion groove  120   a  and the second insertion groove  120   b  formed in the first side guide  12   a  and the second side guide  12   b , and may push and slide the detector support  23  when the detecting device  3  comes in contact with one surface  23   a  of the detector support  23 . The detector support  23  may be rotated in the direction t 1  with respect to the rotating shaft  26 , and the other side of the detector support  23  may face the front surface  110  of the receiving device  10 . When the detector support  23  is rotated in the direction t 1 , the elastic member  24  may be compressed between the detector support  23  and the front surface  110  of the receiving device  10 . The elastic member  24  can press the support bracket  25 . The other side of the detector support  23  may support one surface of the detecting device  3  such that the detecting device  3  can be stably accommodated in the receiving unit  11 . 
     In this manner, when the detecting device  3  having a horizontally extending length L that corresponds to a length L 1  from the one surface  121   a  of the first insertion groove  120   a  to the one surface  121   b  of the second insertion groove  120   b  of the side fixer  12  provided in the receiving device  10  is inserted into the receiving unit  11 , the detector support  23  may be rotated by the detecting device  3  not to interfere with movement of the detecting device  3 . 
     The detecting device  3  may be accommodated in the receiving unit  11  when a front surface comes in contact with the detector support  23 , a rear surface comes in contact with the support  14 , and parts of both side surfaces are inserted into the first insertion groove  120   a  and the second insertion groove  120   b.    
     The receiving unit  11  of the receiving device  10  may be formed at a slant to have a predetermined angle. In other words, the receiving unit  11  of the receiving device  10  may be formed to be inclined to have a predetermined angle with respect to a virtual line G extending in the direction of gravity. Preferably, the receiving unit  11  of the receiving device  10  may be formed to be inclined to have an angle greater than 0° and equal to or less than 90° with respect to the virtual line G extending in the direction of gravity. More preferably, the receiving unit  11  of the receiving device  10  may be formed to be inclined to have an angle greater than 0° and equal to or less than 45° with respect to the virtual line G extending in the direction of gravity. As an example,  FIG. 8  illustrates the receiving unit  11  of the receiving device  10  formed to be inclined to have an angle of about 26° with respect to the virtual line G extending in the direction of gravity. When the receiving unit  11  of the receiving device  10  is formed in parallel to the virtual line G extending in the direction of gravity, because the size of gravity acting on the detecting device  3  is relatively large, a relatively large impact may be applied to the detecting device  3  when the detecting device  3  is accommodated in the receiving unit  11  of the receiving device  10 . Conversely, when the receiving unit  11  of the receiving device  10  is formed to be inclined to have an angle of 90° with respect to the virtual line G extending in the direction of gravity, because the size of gravity acting on the detecting device  3  is relatively small, a relatively small impact may be applied to the detecting device  3  when the detecting device  3  is accommodated in the receiving unit  11  of the receiving device  10 . However, when the receiving unit  11  of the receiving device  10  is formed to be inclined to have an angle of 90° with respect to the virtual line G extending in the direction of gravity, a user has to accept inconvenience of having to bend his or her waist and the like to store the detecting device  3  in the receiving unit  11  of the receiving device  10 . Consequently, it is preferable that the receiving unit  11  of the receiving device  10  be formed to be inclined to have an angle greater than 0° and less than 90° with respect to the virtual line G extending in the direction of gravity. However, because an amount of impact applied to the detecting device  3  may be defined by various parameters such as a weight of the detecting device  3  and a frictional coefficient of the detecting device  3 , the extent to which the receiving unit  11  of the receiving device  10  is inclined is not limited to the above example. For reference, an angle of the receiving unit  11  of the receiving device  10  is measured with respect to a surface of the detecting device  3  accommodated in the receiving unit  11  of the receiving device  10 . As an example, in the case of  FIG. 8 , the angle of the receiving unit  11  of the receiving device  10  is measured with respect to a surface of the detecting device  3  facing the inner rear surface  111 . 
     Hereinafter, a case in which the detecting device  3  whose horizontally extending length is L that is the same as a length L 2  from the one surface  121   a  of the first insertion groove  120   a  to the first side portion  21  of the guide  20  is stably accommodated in the receiving unit  11  of the receiving device  10  will be described. 
       FIG. 9  is a side view of a guide when a guide according to an embodiment of the present invention is in a second position.  FIG. 10  is a side view of a receiving device when a guide according to an embodiment of the present invention is in a second position. 
     As illustrated in  FIGS. 9 and 10 , a horizontally extending length L of the detecting device  3  according to the embodiment of the present invention may be any of a length L 2  from the one surface  121   a  of the first insertion groove  120   a  of the side fixer  12  to the first side portion  21  of the guide  20  and a length L 3  from the one surface  121   b  of the second insertion groove  120   b  of the side fixer  12  to the second side portion  22  of the guide  20 . Hereinafter, the horizontally extending length L of the detecting device  3  will be described as the length L 2  from the one surface  121   a  of the first insertion groove  120   a  of the side fixer  12  to the first side portion  21  of the guide  20 . 
     Meanwhile, when the detecting device  3  whose horizontally extending length L corresponds to the length L 1  from the one surface  121   a  of the first insertion groove  120   a  to the one surface  121   b  of the second insertion groove  120   b  of the side fixer  12  provided in the receiving device  10  is removed from the receiving unit  11 , a force pressing the detector support  23  is removed, and the other side of the detector support  23  may be rotated to face behind the accommodating member  10  due to the elastic force of the elastic member  24 . That is, the detector support  23  may rotate in a direction t 3  that is a direction opposite to the direction t 1  with respect to the rotating shaft  26 . 
     The detector support  23  has a rotating angle that may be restricted by the intervention unit  211  inserted into the rotation restricting portion  231 . The detector support  23  may be rotated at a maximum rotating angle by the rotation restricting portion  231  and the intervention unit  211  and then stopped. Meanwhile, the detector support  23  may be rotated until the other side thereof comes in contact with an inner rear surface of the receiving device  10  forming the receiving unit  11 . 
     When the detector support  23  is rotated in the direction t 3 , the elastic member  24  positioned between the detector support  23  and the support bracket  25  can expand. At least a part of the elastic force stored in the contracted elastic member  24  is used to rotate the detector support  23 . When the detector support  23  is rotated at a predetermined angle, the elastic member  24  may expand and have an elastic force smaller than that before the detector support  23  is rotated. 
     When the detecting device  3  whose horizontally extending length is L 1  is removed from the receiving unit  11 , a first section (length: L 1 ) from the one surface  121   a  of the first insertion groove  120   a  of the side fixer  12  to one surface of the second insertion groove  120   b  may be partitioned by the detector support  23  into a second section (length: L 2 ) from the one surface  121   a  of the first insertion groove  120   a  to the first side portion  21  of the guide  20  and a third section (length: L 3 ) from the second side portion  22  to the one surface  121   b  of the second insertion groove  120   b.    
     A detecting device  3   a  whose horizontally extending length is L 2  may be inserted into the second section in the receiving unit  11 . A detecting device whose horizontally extending length is L 3  may be inserted into the third section in the receiving unit  11 . When the detecting device  3   a  whose horizontally extending length is L 2  is inserted into the second section in the receiving unit  11 , the guide  20  remains in a state before the detecting device  3   a  is inserted, a part of a one-side surface of the detecting device  3   a  is inserted into and fixed to the first insertion groove  120   a , the other-side surface is supported by a one-side surface of the detector support  23 , and thus the detecting device  3   a  may be fixed not to move. A part of the bottom of the detecting device  3   a  may be inserted into and fixed to the mounting portion  130  provided in the bottom fixer  13 . 
     The connector  300  capable of charging the detecting device  3   a  may be provided in the receiving unit  11  of the receiving device  10 . Specifically, the connector  300  may be provided at the bottom fixer  13 . More specifically, the connector  300  may be provided at the mounting portion  130  on which the bottom of the detecting device  3   a  is mounted. When the detecting device  3   a  is accommodated in the receiving unit  11  of the receiving device  10 , the terminal  310  (see  FIG. 10 ) provided in the detecting device  3   a  and the connector  300  provided in the receiving device  10  may come in contact with each other. By such a structure, the detecting device  3   a  may be charged while being accommodated in the receiving unit  11  of the receiving device  10 . Additional description of the connector  300  will be omitted because the description overlaps that with reference to  FIGS. 2 to 4 . 
     The detecting device whose horizontally extending length is L 3  may be inserted into the third section in the receiving unit  11 . In this case, the guide  20  remains in a state that is the same before and after the detecting device is inserted, a one-side surface of the detecting device is supported by the detector support, and the other-side surface of the detecting device may be inserted into and fixed to the second insertion groove  120   b . A part of the bottom of the detecting device can be inserted into and fixed to the mounting portion  130  provided in the bottom fixer  13 . 
     In this manner, even when the detecting devices have various sizes, the detecting devices may be stably accommodated in the receiving unit  11  according to the structure of the guide  20 . Therefore, it is possible to prevent the detecting device from being moved when the main body  4  is moved. 
       FIG. 11  is an exploded perspective view of a guide according to another embodiment of the present invention.  FIG. 12  is a diagram illustrating a guide according to another embodiment of the present invention. 
     In a receiving device  10 ′ according to another embodiment of the present invention illustrated in  FIGS. 11 to 16 , configurations other than a detailed configuration of a guide  50  may be similar to those of  FIGS. 1 to 10 . Hereinafter, a detailed configuration of the guide  50  according to another embodiment of the present invention will be described focusing on differences from the guide  20  illustrated in  FIGS. 1 to 10 . 
     As illustrated in  FIGS. 11 and 12 , the guide  50  according to another embodiment of the present invention may include a body  51  and a detector support  54 . The detector support  54  may be mounted in the body  51  and rotatable about a rotating shaft  55 . The rotating shaft  55  may pass through a side of the body  51  and the detector support  54 , and thus enable the detector support  54  to be rotated and mounted in the body  51 . 
     The body  51  may include a receiving unit  510  in which the detector support  54  can be accommodated. The receiving unit  510  may be provided to correspond to a shape of the detector support  54 . With respect to the receiving unit  510 , the body  51  positioned in one side of the detector support  54  may be referred to as a first sidewall  51   a , and the body  51  positioned in the other side may be referred to as a second sidewall  51   b . A part of the body  51  facing one surface of the detector support  54  may be referred to as a support surface  53 . 
     An elastic member  56  may be positioned between the detector support  54  and the support surface  53 . The elastic member  56  may provide an elastic force such that the other side of the detector support  54  is away from the support surface  53 . 
     As an example, the elastic member  56  may be provided in the form of a spring whose two arms protrude from a circular spring portion. Any one arm may support one surface of the detector support  54 , and the other arm may support one surface of the detector support  54 . The rotating shaft  55  may be inserted into the circular spring portion connecting two arms. A plurality of elastic members  56  may be provided. As an example, two elastic members  56  may be provided. 
     An elastic member receiving unit  541  in which the elastic member  56  can be accommodated may be provided on the other surface of the detector support  54 . When the two elastic members  56  are provided, the elastic member receiving unit  541  may include a first elastic member receiving unit  541   a  in which any one elastic member is accommodated and a second elastic member receiving unit  541   b  in which the other elastic member is accommodated. 
     A rotating shaft insertion hole  540  into which the rotating shaft  55  can be inserted may be provided at a side of the detector support  54 . Rotating shaft insertion holes  52   a  and  52   b  into which the rotating shaft  55  can be inserted may be formed in the first side portion  51   a  and the second side portion  51   b  of the body  51 . The rotating shaft  55  may sequentially pass the rotating shaft insertion hole  52   b  formed in the second side portion  51   b  of the body  51 , the rotating shaft insertion hole  540  formed in the detector support  54 , and the rotating shaft insertion hole  52   a  formed in the first side portion  51   a . Therefore, the detector support  54  may be rotatably mounted in the body  51 . 
     When the elastic member  56  is mounted in the rotating shaft  55 , the rotating shaft  55  may sequentially pass the rotating shaft insertion hole  52   b  formed in the second side portion  51   b  of the body  51 , the rotating shaft insertion hole  540  formed in the detector support  54 , a spring portion of the elastic member  56 , and the rotating shaft insertion hole  52   a  formed in the first side portion  51   a.    
     As illustrated in  FIG. 2  to  FIG. 4 , the guide  50  may be mounted in a front inner side surface of the receiving device  10  forming the receiving unit  11 . The guide  50  may be mounted in a rear inner side surface of the receiving device. 
       FIG. 13  is a side view of a guide when a guide according to another embodiment of the present invention is in a first position.  FIG. 14  is a side view of a receiving device when a guide according to another embodiment of the present invention is in a first position. 
     As illustrated in  FIGS. 13 and 14 , when a detecting device  3 ′ is inserted into the receiving device  10 ′ in which the guide  50  according to another embodiment of the present invention is mounted, the other side of the detector support  54  may be rotated to move forward (direction t 5 : refer to  FIG. 13 ) by the detecting device  3 ′. 
     The detector support  54  may be rotated in the direction t 5  and accommodated in the receiving unit  510  positioned between the first side portion  51   a  and the second side portion  51   b . In this case, a horizontally extending length of the detecting device  3 ′ may correspond to a length from one surface of a first insertion groove of the side fixer  12  provided in the receiving device  10 ′ to one surface of a second insertion groove. 
     In this case, an arm supporting the detector support  54  between two arms of the elastic member  56  positioned between the detector support  54  and the support surface  53  may move in a direction t 6 , and a distance between the two arms may decrease. 
     In the detecting device  3 ′, a part of a side surface of the detecting device  3 ′ may be slidably inserted into the first insertion groove and the second insertion groove formed in the first side guide and the second side guide. The detector support  54  may slide along the first insertion groove and the second insertion groove, and may slidably push the detector support  54  when coming in contact with the detector support  54 . In the detector support  54 , the other side of the detector support  54  may be rotated in the direction t 5  with respect to the rotating shaft  55  due to a pushing force of the detecting device  3 ′ and accommodated in the receiving unit  510  provided in the body  51 . 
     In this manner, a part of a one-side surface of the detecting device  3 ′ is inserted into the first insertion groove of the side fixer, a part of the other-side surface is inserted into the second insertion groove of the side fixer, and thus both sides may be fixed. Also, a bottom of the detecting device  3 ′ may be mounted in and supported by the mounting portion  130  provided in the bottom fixer  13  that is positioned below a receiving unit  11 ′. Therefore, the detecting device  3 ′ may be stably accommodated in the receiving unit  11 ′ not to move even when the main body  4  is moved. 
     The connector  300  capable of charging the detecting device  3 ′ may be provided in the receiving unit  11  of the receiving device  10 . Specifically, the connector  300  may be provided at the bottom fixer  13 . More specifically, the connector  300  may be provided at the mounting portion  130  on which the bottom of the detecting device  3 ′ is mounted. When the detecting device  3 ′ is accommodated in the receiving unit  11  of the receiving device  10 , the terminal  310  provided in the detecting device  3 ′ and the connector  300  provided in the receiving device  10  may come in contact with each other. By such a structure, the detecting device  3 ′ may be charged while being accommodated in the receiving unit  11 ′ of the receiving device  10 . Additional description of the connector  300  will be omitted because the description overlaps that with reference to  FIGS. 2 to 4 . 
     When the detector support  54  is inserted into the receiving unit  510  due to an external force, the detecting device  3 ′ of a great horizontally extending length may also be easily inserted into the receiving unit  11 ′ without intervention of the detector support  54 . 
     The receiving unit  11 ′ of the receiving device  10 ′ may be formed at a slant to have a predetermined angle. Description thereof will be omitted because the description overlaps that of the receiving unit  11  of the receiving device  10 . 
     Hereinafter, a case in which a detecting device of a short horizontally extending length is inserted into the receiving unit  11 ′ will be described. 
       FIG. 15  is a side view of a guide when the guide according to another embodiment of the present invention is in a second position.  FIG. 16  is a side view of a receiving device when a guide according to another embodiment of the present invention is in a second position. 
     As illustrated in  FIGS. 15 and 16 , a detecting device  3   a ′ according to another embodiment of the present invention has a horizontally extending length that is any of a length from one surface of the first insertion groove of the side fixer to the first side portion  51   a  of the guide  50  and a length from one surface of the second insertion groove to the second side portion  51   b  of the guide  50 . Hereinafter, the horizontally extending length of the detecting device  3   a ′ will be described as the length from one surface of the first insertion groove of the side fixer to the first side portion  51   a  of the guide  50 . 
     When the detecting device  3   a ′ illustrated in  FIGS. 13 and 15  is removed from the receiving unit  11 ′, the detector support  54  may rotate in a direction t 7  with respect to the rotating shaft  55  due to an elastic force of the elastic member  56 , and be removed from the receiving unit  510  of the body  51 . When the detector support  54  is rotated in the direction t 7 , at least a part of the elastic force of the elastic member  56  positioned between the detector support  54  and the support surface  53  is used to rotate the detector support  54 . When the detector support  54  is rotated at a predetermined angle, the elastic member  56  may expand and have an elastic force smaller than that before the detector support  54  is rotated. When the detector support  54  is rotated in the direction t 7 , an arm of the elastic member  56  supporting an inner side surface of the detector support  54  may move in a direction t 8  while the inner side surface of the detector support  54  is supported. The direction t 7  and the direction t 8  may be the same direction. Therefore, a distance between the arm supporting the inner side surface of the detector support  54  and the arm supporting the support surface  53  of the body  51  may increase. 
     As an example, when the detecting device  3   a ′ whose horizontally extending length is L 1  is removed from the receiving unit  11 ′, a first section (length: L 1 ) from one surface of the first insertion groove of the side fixer to one surface of the second insertion groove may be partitioned by the detector support  54  into a second section (length: L 2 ) from the one surface of the first insertion groove to the first side portion  51   a  of the guide  50  and a third section (length: L 3 ) from the second side portion  51   b  to the one surface of the second insertion groove. 
     The detecting device  3   a ′ whose horizontally extending length is L 2  may be inserted into the second section in the receiving unit  11 ′ and the detecting device whose horizontally extending length is L 3  may be inserted into the third section in the receiving unit  11 ′. When the detecting device  3   a ′ whose horizontally extending length is L 2  is inserted into the second section in the receiving unit  11 ′, the guide  50  remains in a state before the detecting device  3   a ′ is inserted, a part of a one-side surface of the detecting device  3   a ′ is inserted into and fixed to the first insertion groove, the other-side surface is supported by a one-side surface of the detector support  54 , and thus the detecting device  3   a ′ may be fixed not to move. A part of a bottom of the detecting device  3   a ′ may be inserted into and fixed to a mounting portion provided in a bottom fixer  13 ′. 
     A detecting device whose horizontally extending length is L 3  may be inserted into the third section in the receiving unit  11 ′. In this case, the guide  50  remains in a state that is the same before and after the detecting device is inserted, a one-side surface of the detecting device is supported by the detector support, and the other-side surface of the detecting device may be inserted into and fixed to the second insertion groove. A part of the bottom of the detecting device may be inserted into and fixed to the mounting portion provided in the bottom fixer  13 ′. 
     In this manner, when the detecting devices have various sizes, the detecting devices can be stably accommodated by the receiving unit  11 ′ according to the structure of the guide  50 . Therefore, it is possible to prevent the detecting device from being moved when the main body  4  is moved. 
     The receiving unit  11 ′ of the receiving device  10 ′ may be formed at a slant to have a predetermined angle. Description thereof will be omitted because the description overlaps that of the receiving unit  11  of the receiving device  10 . 
       FIG. 17  is a diagram illustrating a part of a receiving device according to still another embodiment of the present invention. 
     As illustrated in  FIG. 17 , a guide  70  provided in the receiving device according to still another embodiment of the present invention is movable along a rail  74 . The rail  74  may be provided on an inner side surface  72   c  of the receiving device forming the receiving unit. The rail  74  may extend in a horizontal direction. Side portions  72   a  and  72   b  are provided at both ends of the inner side surface  72   c , respectively. Side fixers  71   a  and  71   b  having an insertion hole into which a part of a side surface of the detecting device is slidably inserted may be provided in the side portions  72   a  and  72   b . A direction in which the insertion hole extends may be perpendicular to a direction in which the rail  74  extends. A bottom fixer  73  configured to support a bottom of the detecting device may be provided in the lower part of the receiving device. 
     Since the guide  70  is horizontally movable along the rail, in order to fix both sides such that the detecting device is stably accommodated in the receiving unit, a position of the guide  70  may be moved according to a size of the detecting device. 
     As an example, in the guide  70 , the guide  70  may be moved along the rail  74  in order to insert a detecting device having a horizontally extending length of w 2  that is greater than w 1  between the second side fixer  71   b  and the guide  70  when a distance from the second side fixer  71   b  is w 1 . The guide  70  may move to a point at which a length from the second side fixer  71   b  is w 2 . Therefore, the detecting device may be inserted between the second side fixer  71   b  and the guide  70 , and the detecting device may be fixed not to move by side surfaces of the second side fixer  71   b  and the guide  70 . 
     Meanwhile, the guide  70 , which is movable along the rail  74 , has a position that may be fixed by various types of stopper structures. Since the stopper structure of the related art can be used, a detailed description thereof will be omitted 
       FIG. 18  is a diagram illustrating a part of a receiving device according to still another embodiment of the present invention. 
     As illustrated in  FIG. 18 , the receiving device according to still another embodiment of the present invention may include a plurality of guides  80 . The plurality of guides  80  are movable along a rail  84  that extends in a horizontal direction. The rail  84  may be provided on an inner side surface  82   c  of the receiving device forming the receiving unit. Side portions  82   a  and  82   b  are provided at both ends of the inner side surface  82   c , respectively. Side fixers  81   a  and  81   b  having an insertion hole into which a part of a side surface of the detecting device is slidably inserted may be provided in the side portions  82   a  and  82   b . A direction in which the insertion hole extends may be perpendicular to a direction in which the rail  84  extends. A bottom fixer  83  configured to support a bottom of the detecting device may be provided in the lower part of the receiving device. 
     According to the user&#39;s convenience, a guide adjacent to any of among the plurality of guides may be separated at an interval to correspond to the horizontally extending length of the detecting device and then the detecting device may be inserted into the guides. 
     For example, the guide  80  may include a first guide  80   a  and a second guide  80   b . In order to accommodate a detecting device whose horizontally extending length is w 3  in the receiving device, the user moves the first guide  80   a  or the second guide  80   b  along the rail  84 , and when an interval between the first guide  80   a  and the second guide  80   b  is w 3 , fixes positions of the first guide  80   a  and the second guide  80   b  and may insert the detecting device therebetween. The detecting device may be fixed not to move even when the main body  4  is moved by a side surface of the first guide  80   a  and a side surface of the second guide  80   b.    
     When positions of the first guide  80   a  and the second guide  80   b  are appropriately regulated, the detecting device may be inserted into spaces between the first side fixer  81   a  and the first guide  80   a , between the first guide  80   a  and the second guide  80   b , and between the second guide  80   b  and the second side fixer  81   b . Therefore, the plurality of detecting devices may be accommodated in one receiving device. 
     The number of guides that are movable along the rail  84  is not limited to the above. Meanwhile, since the stopper structure of fixing positions of the first guide  80   a  and the second guide  80   b  in the related art can be used, a detailed description thereof will be omitted. 
     According to the above structure, detecting devices of various sizes may be stably accommodated in the receiving device having one receiving unit. 
     While the receiving device provided in the mobile X-ray imaging apparatus has been described above, the structure in which the guide is provided in the receiving device of the present invention is a structure in which a plate-shaped object of a different size may be stably accommodated in one receiving unit. Therefore, the structure may be utilized as a space for receiving a detector for X-ray imaging and utilized in other fields. 
     According to the embodiment of the present invention, the detector may be stably supported even when a detector having a smaller size than the receiving unit is accommodated in the receiving unit by a detector fixing device provided in the receiving device. Since receiving units for accommodating detectors of different sizes are not separately provided, the receiving device has good space utilization.