JP2015181580A - Radiation generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable radiation generating device in which the device width can be made compact when it is moved, and the device is unlikely to be overturned when a picture is taken.SOLUTION: A radiation generating device includes: a radiation generation part 1 for generating radiation; an arm 2 for supporting the radiation generating part; a support pillar 4 for supporting the arm; and a support leg part (base member) 6 for supporting the support pillar. The arm can be opened and closed with respect to the support pillar. The support leg part (base member) includes an expansion/contraction part that expands and contracts in conjunction with the opening/closing of the arm.

Description

  The present invention relates to an apparatus for generating radiation.

  In recent years, as a radiation generating apparatus for home medical care and medical examination, a radiation generating apparatus that is movable by mounting a radiation generating unit on a moving mechanism has been widespread. The radiation generating apparatus has a configuration for performing imaging by generating radiation from a radiation generating unit, a configuration for performing movement using a moving mechanism, and a configuration of two side surfaces.

  Patent Document 1 discloses an apparatus having an arm as a support mechanism for supporting a radiation generation unit, a support column for supporting the arm, a support leg unit for supporting the support column and the arm, and a wheel of a moving mechanism.

US Pat. No. 6,754,306

  When moving radiation generating devices, it is necessary to move between narrow passages in hospitals and narrow beds in hospital rooms, so the device width is made compact to avoid interference with people and objects. It is necessary.

  In addition, when the radiation generating device is picked up at a high position during imaging, the position of the center of gravity of the device is increased, so that the device is likely to fall down due to an external force applied to the device. For this reason, it is necessary to widen the width of the support leg which is the base part of the apparatus.

  However, in the configuration of Patent Document 1, when the device is moved with the support legs deployed, the device width at the time of movement becomes a wide width considering the prevention of device overturning when the arm is deployed, and is narrow in the hospital. It is difficult to move when moving between passages and narrow beds in hospital rooms.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a radiation generating apparatus that can make the apparatus width compact when moving, and that the apparatus does not fall over during imaging.

  A radiation generation apparatus according to an aspect of the present invention includes a radiation generation unit that generates radiation, an arm that supports the radiation generation unit, a support that supports the arm, and a support leg that supports the support. In the radiation generating apparatus in which the arm is openable and closable with respect to the support column, the support leg part includes an extendable part that expands and contracts in conjunction with opening and closing of the arm.

  A radiation generating apparatus according to another aspect of the present invention includes a radiation generating unit that generates radiation, an arm that supports the radiation generating unit, a support that supports the arm, and a support leg that supports the support. In the radiation generating apparatus, wherein the arm is openable and closable with respect to the support column, a plurality of extendable parts that can be extended and contracted with respect to the support leg part, and any one of the plurality of extendable parts And an expansion / contraction mechanism that moves another expansion / contraction part according to the movement of the part.

  A radiation generating apparatus according to another aspect of the present invention includes a radiation generating unit that generates radiation, an arm that supports the radiation generating unit, a support that supports the arm, and a base member that supports the support. In the radiation generating apparatus, wherein the arm is openable and closable with respect to the support column, the base member includes an expansion / contraction part that expands and contracts in conjunction with opening and closing of the arm.

  According to the present invention, it is possible to provide an apparatus for generating radiation that can reduce the apparatus width when moving and can prevent the apparatus from falling over during imaging.

The figure which shows the structure of the apparatus for radiation generation of 1st Embodiment. The figure explaining the structure of the expansion-contraction mechanism part of 1st Embodiment. The figure explaining the structure of the position lock mechanism of 1st Embodiment, and a cancellation | release mechanism. The figure which shows the structure of the apparatus for radiation generation of 2nd Embodiment. The figure which shows the structure of the operation part of 2nd Embodiment. The figure explaining the structure of the expansion-contraction mechanism part of 2nd Embodiment. The figure which shows the structure of the apparatus for radiation generation of 3rd Embodiment. The figure which shows the structure of the apparatus for radiation generation of 3rd Embodiment. The figure explaining the structure of the structure of the switch part of 3rd Embodiment. The figure which shows the structure of the apparatus for radiation generation of 4th Embodiment. The figure explaining the structure of the expansion-contraction mechanism part of 4th Embodiment. The flowchart figure of the expansion-contraction rod control of 4th Embodiment. The figure which illustrates the control table of 4th Embodiment. The figure which illustrates the 2nd control table of a 5th embodiment.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the components described in this embodiment are merely examples, and the technical scope of the present invention is determined by the scope of the claims, and is not limited by the following individual embodiments. Absent.

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of a radiation generation apparatus according to the first embodiment. 1A shows a front perspective view of the radiation generating apparatus during movement, and FIG. 1B shows a front perspective view of the radiation generation apparatus during imaging.

  The radiation generation apparatus includes a radiation generation unit 1 that generates radiation, an arm 2 that supports the radiation generation unit 1, a support column 4 that supports the arm 2, and a support leg 6 that supports the support column 4. 4 can open and close the arm 2. The radiation generating apparatus includes a plurality of expansion / contraction parts 10 that can be extended / contracted with respect to the support leg 6 and the other expansion / contraction parts 10 according to the movement of one of the plurality of expansion / contraction parts 10. And a telescopic mechanism 22 that moves.

  The column 4 is perpendicular to the ground or at an angle close to vertical when the apparatus is standing. A hinge portion 5 is provided between the arm 2 and the support column 4, and the hinge portion 5 connects the arm 2 and the support column 4 so that the arm 2 can be opened and closed with respect to the support column 4. The arm 2 is closed to the support column 4 when the radiation generating apparatus is moved (FIG. 1A), and the arm 2 is opened to the support column 4 during imaging (FIG. 1). (B)).

  The rotating unit 3 is disposed between the radiation generating unit 1 and the tip of the arm 2 and adjusts the rotation angle of the radiation generating unit 1 with respect to the arm 2. By adjusting the rotation angle by the rotating unit 3, the irradiation direction of the radiation generating unit 1 can be adjusted.

  The support leg 6 is a member that supports the column 4. The support leg hinge part 7 connects the base member 100 to which the support column 4 is fixed and the support leg part 6, and the support leg hinge part 7 supports the support leg part 6 so that it can be opened and closed.

  The support leg 6 and the base member 100 may be integrated without providing the support leg hinge 7. Since the base member 100 is also a member that supports the support column 4, the support leg 6 can be rephrased as the base member 100.

  The radiation generating apparatus can be moved by the moving mechanism 8. The moving mechanism 8 is for generating radiation by rotating in a state where a plurality of tires or casters attached to the lower part of the base member 100 to which the support column 4 is fixed and the lower part of the supporting leg part 6 are installed on the ground. It is possible to move the entire device. When moving the radiation generating apparatus, the operator can perform a moving operation via the handle 9.

  The expansion / contraction part 10 is arrange | positioned at the support leg part 6, and is comprised so that expansion-contraction can be interlocked | linked with at least one of the width direction (y direction of FIG. 1) of the apparatus for radiation generation. In addition, the stretchable portion 10 is configured to be stretchable in conjunction with at least one of the movement directions of the radiation generating apparatus that intersects the width direction (x direction in FIG. 1).

  In the example shown in FIG. 1B, the stretchable part 10 shows a configuration in which the stretchable part 10 protrudes left and right from the width direction (y direction) of the support leg 6, but the gist of the present invention is this example. It is not limited to this, and the configuration may be such that the stretchable portion 10 protrudes from at least one of the width directions. By projecting the extendable portion 10 in conjunction with the operation of opening the arm 2 with respect to the support column 4, it is possible to provide an apparatus for generating radiation that is not easily toppled during imaging. Further, by retracting the extendable portion 10 in conjunction with the operation of closing the arm 2 with respect to the support column 4, it is possible to provide a radiation generating apparatus that can reduce the apparatus width during movement.

  The expansion / contraction part 10 is configured to float from the ground, but the shape of the expansion / contraction part 10 may be configured such that at least the tip of the expansion / contraction part 10 contacts the ground. Thereby, by reducing the gap between the expansion / contraction part 10 and the ground, it is possible to stably support the apparatus at the time of imaging, and it is possible to provide an apparatus for generating radiation that is difficult to fall.

(Configuration of telescopic mechanism)
Next, the structure of the expansion / contraction mechanism part which moves the expansion / contraction part 10 is demonstrated using FIG. The expansion / contraction mechanism unit has a configuration in which when the expansion / contraction operation is performed on one of the plurality of expansion / contraction units 10, the expansion / contraction operation can be performed in conjunction with the other expansion / contraction unit 10.

  In the configuration shown in FIG. 2, the extension / contraction part 10 is connected to the support leg 6 via the linear guide rail 11 and the sliding part 52, and the extension / contraction part 10 is connected to the support leg 6 along the linear guide rail 11. It is configured to be movable in the width direction (y + direction and y− direction).

  The expansion / contraction part 10 and the support leg part 6 are connected by the tension spring 12. When the extendable portion 10 is moved so as to protrude from the support leg portion 6, the movement of the extendable portion 10 is transmitted to the slide portion 14 via the wire 17.

  The linear guide rail 13 is disposed along the movement direction (x direction) of the support leg 6, and the slide portion 14 is configured to be movable on the linear guide rail 13. The wire 17 connects the stretchable portion 10 and the slide portion 14 via the pulley 16. In addition, the support leg 6 and the slide 14 are connected by the tension spring 15.

  As the tension spring 15, a spring that always produces a stronger force than the tension spring 12 is used. That is, the relationship between the tension spring 12 and the tension spring 15 satisfies the relationship that the tension force of the tension spring 15> the tension force of the tension spring 12. Due to this relationship, the slide portion 14 moves downward (x-direction) by the tensile force of the tension spring 15, and the downward (x-direction) tensile force due to the movement of the slide portion 14 is transmitted to the wire 17.

  The downward (x-direction) tensile force transmitted to the wire 17 is converted into a lateral (y + direction) tensile force by the pulley 16 disposed on the left side of the sheet of FIG. Further, the lower (x-direction) tensile force is converted into a lateral (y-direction) tensile force by the pulley 16 arranged on the right side of the page.

  The stretchable part 10 arranged on the left side of the paper moves in the lateral direction (y + direction) by the transmitted tensile force and moves to the position retracted from the support leg part 6 (storage position). In addition, the expansion / contraction part 10 arranged on the right side of the drawing moves in the lateral direction (y-direction) by the transmitted tensile force and moves to the position retracted from the support leg part 6 (storage position). Thereby, the expansion-contraction part 10 will be in the state withdrawn in the support leg part 6 in a normal state.

  In FIG. 2, the movement of the slide part 14 is transmitted to the left and right telescopic parts 10 via the left and right pulleys 16, so that the movement of the left and right telescopic parts 10 can be performed in conjunction with each other. For example, the movement of the slide part 14 downward (x-direction) makes it possible to move the plurality of stretchable parts 10 in conjunction with the position retracted from the support leg part 6 (storage position). For example, if the slide unit 14 is moved in conjunction with the opening and closing of the arm 2, the opening and closing of the arm 2 and the movement of the telescopic unit 10 can be linked. This configuration will be specifically described later in a third embodiment.

  The interlocking of the plurality of expansion / contraction parts 10 is not limited to the movement to the storage position, and the expansion / contraction operation for projecting the expansion / contraction part 10 can be performed in conjunction with each other. For example, when an expansion / contraction operation that causes one of the two expansion / contraction sections 10 to protrude is performed, the other expansion / contraction section 10 can also be protruded in an interlocking manner. In addition, in the structure of FIG. 2, although the structure where the two expansion-contraction parts 10 are arrange | positioned in the y direction (left-right direction) is illustrated, combining the structure which arrange | positions the expansion-contraction part 10 further in the x direction may be combined. Is possible. In this case, the expansion / contraction operation on one expansion / contraction part by the operator can be reflected also on the other plurality of expansion / contraction parts. Thereby, it becomes possible to reduce the burden of the extension operation by the operator.

(Configuration of position lock mechanism)
Next, the configuration of the position lock mechanism that holds the position of the slide portion 14 will be described. As a configuration of the position lock mechanism, the support leg portion 6 is provided with a claw portion 19, a guide member 20, and a compression spring 21. The guide member 20 is formed with a guide path that guides the movement of the claw portion 19 in the left-right direction (y + direction, y− direction). The claw portion 19 is placed in the guide member 20 from the left to the right of the page. A compression spring 21 is arranged to urge toward the direction (y + direction) toward. The claw portion 19 can move in the left-right direction according to a guide path formed in the guide member 20, and the claw portion 19 is biased by the compression spring 21. The front end portion of the claw portion 19 is configured to protrude from the guide member 20.

  The slide portion 14 is provided with a groove portion 18 that can be engaged with the claw portion 19.

  In FIG. 2, when the extension / contraction part 10 moves so as to protrude from the support leg part 6 by the extension / contraction operation by the operator, the movement of the extension / contraction part 10 is transmitted to the slide part 14 via the wire 17. For example, when the expansion / contraction part 10 on the right side of FIG. 2 moves in the y + direction, the slide part 14 moves upward (x + direction) in accordance with the movement of the expansion / contraction part 10 in the y + direction. At this time, due to the interlocking of the expansion / contraction operation of the expansion / contraction part 10 on the right side of the paper surface, the expansion / contraction part 10 on the left side of the paper surface moves in the y-direction by the tensile force of the tension spring 12 corresponding to the movement of the slide part 14.

  When the slide part 14 moves upward (x + direction), the claw part 19 fits into the groove part 18 and the position lock mechanism holds the position of the slide part 14. By holding the position of the slide part 14, it is possible to hold the state in which the left and right extendable parts 10 protrude from the support leg part 6.

(Configuration of release mechanism)
Next, the configuration of the release mechanism that releases the position holding of the position lock mechanism will be described. FIG. 3 is a diagram illustrating the configuration of the release mechanism, and shows a cross-sectional configuration of the position lock mechanism. In FIG. 3, the claw portion 19 is fitted in the groove portion 18 and shows a state where the position of the slide portion 14 is held. The claw portion 19 has an L shape and penetrates the long hole 300 provided in the support leg portion 6 so that the upper portion of the claw portion 19 protrudes upward (z + direction) from the support leg portion 6. It is configured. The upper part of the claw part 19 protruding from the support leg part 6 can be operated by the operator. The operator releases the engagement of the claw 19 fitted in the groove 18 by sliding the claw 19 along the elongated hole 300 in the left direction (y-direction) in FIG. Can do. Thereby, the position holding of the position lock mechanism can be released.

  When the position holding of the slide portion 14 by the position lock mechanism is released, the slide portion 14 moves downward (x-direction) by the tensile force of the tension spring 15 having a larger tensile force than the tension spring 12.

  The downward (x-direction) tensile force due to the movement of the slide portion 14 is transmitted to the wire 17. The downward (x-direction) tensile force transmitted to the wire 17 is converted into a lateral (y + direction) tensile force by the pulley 16 disposed on the left side of the sheet of FIG. Further, the lower (x-direction) tensile force is converted into a lateral (y-direction) tensile force by the pulley 16 arranged on the right side of the page. The stretchable part 10 arranged on the left side of the paper moves in the lateral direction (y + direction) by the transmitted tensile force and moves to the position retracted from the support leg part 6 (storage position). In addition, the expansion / contraction part 10 arranged on the right side of the drawing moves in the lateral direction (y-direction) by the transmitted tensile force and moves to the position retracted from the support leg part 6 (storage position). That is, after the position holding of the slide part 14 is released, the movement from the position where the left and right telescopic parts 10 protrude to the storage position can be performed in conjunction.

(Example)
An example of a change in the apparatus width by the expansion / contraction part 10 will be described. When performing round-trip photography in a hospital ward, an operator (photographer or doctor) needs to perform an operation by inserting a device between a narrow corridor or bed in a hospital, and the corridor has a width of 1200 mm in a narrow place. . In consideration of passing, it is desirable that the apparatus width is 600 mm or less. At the time of X-ray imaging, the height of the low floor bed is assumed to be 400 mm, the distance between the radiation generation unit and the radiation detection unit is SID (Source Image Distance) of 1000 mm, and the focal point of the radiation generation unit to the radiation generation unit When the distance of the upper part of the housing is 100 mm, the device height is 1500 mm. Since a device width that is half of the device height is generally required from the medical equipment standard, the device width at the time of photographing is preferably 750 mm or more. That is, the expansion / contraction stroke of the expansion / contraction part 10 is (750 mm−600 mm) / 2 = 75 mm. That is, when the expansion / contraction part 10 is arrange | positioned on either side like FIG. 2, what is necessary is just to ensure 75 mm as an expansion / contraction stroke (expansion / contraction amount) of the expansion / contraction part 10 of one side.

  With the configuration as described above, the operator uses the apparatus width by moving the telescopic unit 10 to project during shooting, and moving the telescopic unit 10 to the storage position during storage to store the telescopic unit 10. It becomes possible to change according to the situation. That is, it is possible to provide a device for generating radiation that can reduce the width of the apparatus when moving, and that does not easily fall over during imaging.

(Second Embodiment)
This embodiment demonstrates the structure which provided the operation part for performing the expansion-contraction operation of the expansion-contraction part 10 in the support | pillar 4. FIG. 4 to 6 described below, the same reference numerals are assigned to the same components as those in the first embodiment, and duplicate descriptions are omitted.

  FIG. 4 is a diagram showing the configuration of the radiation generating apparatus according to the second embodiment, and shows a cross-sectional view from the side when the apparatus is moved. The support leg hinge portion 7 is not shown in FIG. 4, but may be configured at the position shown in FIG. The expansion / contraction mechanism part 22 is a configuration in which the expansion / contraction part 10, the linear guide rail 11, the tension spring 12, the linear guide rail 13, the slide part 14, the pulley 16, and the wire 17 described in FIG. The pulley 23 is disposed at the end of the support mechanism 4 on the rear wheel side of the moving mechanism 8. The linear guide rail 24 is disposed along the vertical direction (z direction) in the column 4. The slide part 25 is configured to be movable on the linear guide rail 24. The slide unit 25 is configured such that an operation unit 500 for manually moving the position of the slide unit 25 on the linear guide rail 24 protrudes from the support column 4.

  FIG. 5 is a rear perspective view of the radiation generating apparatus illustrating the configuration of the operation unit of the slide unit 25. A long hole is provided in the support column 4 along the vertical direction (z direction), and the operation unit 500 protrudes from the support column 4 through the long hole.

  The operation unit 500 protruding from the support column 4 can be operated by an operator. The operator can move the position of the slide unit 25 by sliding the operation unit 500 in the vertical direction (z direction) along the elongated hole.

  Returning to FIG. 4, the wire 26 connects the slide portion 25 and the telescopic mechanism portion 22 via the pulley 23. The expansion / contraction operation input from the operation unit 500 is transmitted to the expansion / contraction mechanism unit 22 via the wire 26, and the expansion / contraction unit 10 of the expansion / contraction mechanism unit 22 performs an interlocked expansion / contraction operation according to the transmitted expansion / contraction operation.

(Configuration of telescopic mechanism 22)
Next, the configuration of the expansion / contraction mechanism 22 will be described. FIG. 6 is a diagram illustrating the configuration of the expansion / contraction mechanism 22. The structure of the support leg 6, the telescopic part 10, the linear guide rail 11, the sliding part 52, the tension spring 12, the linear guide rail 13, the slide part 14, the pulley 16, and the wire 17 is as described in FIG. The movable pulley 27 is provided on the slide portion 14. The pulley 28 is provided on the support leg 6. The fixing portion 29 is provided with the support leg 6, and fixes the wire 26 to the support leg 6.

  When a tensile force acts on the wire 26 downward (x-direction) in FIG. 6, the tensile force in the (x-direction) is converted into an upward (x + direction) tensile force by the pulley 28. When the sum of the upper (x + direction) tensile force and the tension force of the tension spring 12 is larger than the tension force of the tension spring 15, the difference in tension between the two is set as the upper (x + direction) tensile force. To the movable pulley 27. Due to the transmitted upward (x + direction) tensile force, the movable pulley 27 moves upward (x + direction) together with the slide portion 14. At this time, the left and right expansion / contraction parts 10 move together so as to protrude from the support leg part 6 by the tensile force of the tension spring 12 by an amount corresponding to the movement of the slide part 14.

  On the other hand, when the downward (x-direction) tensile force applied to the wire 26 is reduced by the operation of the operation unit 500, the reduced tensile force is converted into an upward (x + direction) tensile force by the pulley 28. At this time, when the sum of the tensile force of the upper (x + direction) and the tensile force of the tensile spring 12 is smaller than the tensile force of the tensile spring 15, the difference between the two is the downward (x-direction) tensile force. And transmitted to the moving pulley 27 via the wire 26.

  For example, when the tensile force of the wire 26 becomes zero, as described in the configuration of the expansion / contraction part 10 of the first embodiment, the relationship between the tension spring 12 and the tension spring 15 is that the tension force of the tension spring 15> the tension. The relationship of the tensile force of the spring 12 is satisfied. From this relationship, the slide portion 14 moves downward (x-direction) by the tensile force of the tension spring 15, and the downward (x-direction) tensile force due to the movement of the slide portion 14 is transmitted to the wire 17.

  Due to the transmitted downward (x-direction) tensile force, the movable pulley 27 moves downward (x-direction) together with the slide portion 14. At this time, the left and right extendable parts 10 move together and move from the protruding position to the retracted position (storage position) in accordance with the movement of the slide part 14.

  It is also possible to provide the structure of the position lock mechanism and the release mechanism as described in FIG. For example, the position of the slide portion 25 can be held at a predetermined position on the support column 4 by providing the slide portion 25 with the groove portion 18 and providing the support column 4 with the claw portion 19, the compression spring 21, and the guide member 20. it can. By holding the position of the slide portion 25, it is possible to hold the state in which the stretchable portion 10 arranged in the left-right direction (y direction) protrudes from the support leg portion 6.

  Further, when a long hole 300 as shown in FIG. 3 is provided in the support column 4 and the engagement of the claw portion 19 fitted in the groove portion 18 is released by the sliding operation of the claw portion 19, a predetermined position on the support column 4 is obtained. The held position of the slide part 25 can be released. After releasing the position of the slide part 25, the movement from the position where the telescopic part 10 in the left-right direction (y direction) protrudes to the storage position can be performed in conjunction. By releasing the position holding of the release mechanism, the telescopic part 10 can be quickly stored in conjunction with it.

  With the above configuration, the operator can perform the telescopic operation on the side of the support column 4 close to the arm 2 when taking an image, and the operability can be improved. In addition, since it is not necessary to operate on the side of the support leg 6 near the floor where there are many bacteria, the operator can operate the apparatus while maintaining a clean state.

  By performing an expansion / contraction operation on the column 4 side close to the arm 2, the telescopic unit 10 is moved so as to protrude at the time of photographing, and the telescopic unit 10 is moved to the storage position at the time of movement to store the telescopic unit 10, The device width can be changed according to the use situation. That is, it is possible to provide a device for generating radiation that can reduce the width of the apparatus when moving, and that does not easily fall over during imaging.

(Third embodiment)
In the present embodiment, a configuration in which the expansion / contraction part 10 performs the expansion / contraction operation in conjunction with the opening / closing operation of the arm 2 with respect to the column 4 will be described. The radiation generating apparatus includes a radiation generating unit 1 that generates radiation, an arm 2 that supports the radiation generating unit 1, a support column 4 that supports the arm 2, and a support leg 6 that supports the support column 4 (base member 100). The arm 2 can be opened and closed with respect to the column 4. The support leg 6 includes an expansion / contraction part 10 that expands and contracts in conjunction with opening and closing of the arm 2. Although not shown, the base member 100 can also include an extendable portion 10 that expands and contracts in conjunction with the opening and closing of the arm 2. The operation of opening the arm 2 is performed during photographing, and the operation of closing the arm 2 is performed during movement. Here, the expansion / contraction part 10 is expanded and contracted in conjunction with the opening and closing of the arm 2. The telescopic part 10 can be protruded during photographing, and the telescopic part 10 can be accommodated during movement.

  The operation of opening the arm 2 with respect to the column 4 is referred to as an opening operation (swinging up operation), and the operation of closing the arm 2 with respect to the column 4 is referred to as a closing operation (swinging down operation).

  7 to 9 described below, the same reference numerals are assigned to the same configurations as those in the first embodiment and the second embodiment, and redundant descriptions are omitted.

  FIG. 7 is a diagram showing the configuration of the radiation generating apparatus according to the third embodiment, and shows a cross-sectional view from the side when the apparatus is moved. The support leg hinge portion 7 is not shown in FIG. 7, but may be configured at the position shown in FIG. The expansion / contraction mechanism part 22 is a configuration in which the expansion / contraction part 10, the linear guide rail 11, the tension spring 12, the linear guide rail 13, the slide part 14, the pulley 16, and the wire 17 described in FIG.

  The radiation generating apparatus according to the present embodiment includes a transmission unit for transmitting the opening / closing operation of the arm 2 to the support column 4 to the expansion / contraction mechanism unit 22. The transmission unit includes a wire 26 that connects the arm 2 and the telescopic mechanism unit 22. The expansion / contraction mechanism part 22 moves the expansion / contraction part 10 by the transmitted force.

  The arm 2 is provided with a support portion that supports the arm 2 with respect to the support column 4 by urging elastic force. The support portion includes a gas spring 30, and the support portion (gas spring 30) connects the arm 2 and the support column 4. The gas spring 30 can reduce (assist) the operating force of the operator in the opening operation (swinging operation) and closing operation (swinging operation) of the arm 2. Not only the gas spring 30 but also a configuration that can reduce the operating force by a compression spring or the like can be used.

  The transmission unit includes a pulley 23 and a pulley 31 in addition to the wire 26. The pulley 23 is disposed at the end of the support mechanism 4 on the rear wheel side of the moving mechanism 8. The pulley 31 is disposed on the arm 2 side of the support column 4. The wire 26 connects the expansion / contraction mechanism part 22 and the gas spring 30 constituting the transmission part via the pulley 23 and the pulley 31. When the arm 2 opens (swings up), the gas spring 30 extends and the wire 26 is pulled toward the gas spring 30 side. The tensile force of the wire 26 is transmitted to the expansion / contraction mechanism 22.

  The expansion / contraction mechanism unit 22 includes a moving unit (for example, a sliding unit 52) that movably supports the expansion / contraction unit 10 with respect to the support leg 6, and a generation unit that generates a force for moving the moving unit. . The generating unit includes a first urging member (tensile spring 12) that urges the moving unit (sliding unit 52) in a direction in which the expandable unit 10 protrudes from the support leg unit 6, and the expandable unit 10 includes the support leg unit 6. And a second urging member (tensile spring 15) that urges the moving part (for example, the sliding part 52) in the direction of being housed in the housing. At this time, the force (tensile force) of the first urging member (tension spring 12) is smaller than the force (tensile force) of the second urging member (tensile spring 15). For this reason, when a force (tensile force) is not transmitted from the transmission unit to the expansion / contraction mechanism unit 22, the expansion / contraction unit 10 is in a state of being moved in the direction of being accommodated in the support leg 6.

  When the force is transmitted to the expansion / contraction mechanism unit 22, the generation unit transmits the force transmitted by the transmission unit, the force of the first urging member (tensile spring 12) (tensile force), and the second urging member ( The force for moving the moving part is generated by the difference between the force (tensile force) of the tension spring 15). When the arm 2 opens with respect to the support column 4, the generating unit generates a force that moves the moving unit (sliding unit 52) in a direction in which the telescopic unit 10 protrudes from the support leg 6 due to the difference in force.

  Specifically, when a tensile force is transmitted downward (x-direction) to the expansion / contraction mechanism section 22, the expansion / contraction mechanism section 22 performs the operation described with reference to FIG. That is, when a downward tensile force (x-direction) in FIG. 6 acts on the wire 26, the tensile force is converted into an upward (x + direction) tensile force by the pulley 28. When the sum of the tensile force of the upper (x + direction) and the tensile force of the tension spring 12 is larger than the tensile force of the tensile spring 15, the differential tensile force becomes the upper (x + direction) tensile force via the wire 26. It is transmitted to the moving pulley 27. Due to the transmitted upward (x + direction) tensile force, the movable pulley 27 moves upward (x + direction) together with the slide portion 14. At this time, the left and right expansion / contraction parts 10 move together so as to protrude from the support leg part 6 by the tensile force of the tension spring 12 by an amount corresponding to the movement of the slide part 14.

  When the arm 2 is closed with respect to the support column 4, the generation unit generates a force that moves the moving unit (sliding unit 52) in the direction in which the expansion / contraction unit is housed in the support leg 6 due to the difference in force. Specifically, when the arm 2 performs the closing operation (swinging operation), a force in the compression direction is applied to the expanded gas spring 30, and the length of the gas spring 30 is shortened by the extension, and the wire 26 is pulled. The power is reduced. At this time, the wire 26 is pulled toward the expansion / contraction mechanism part 22 side (x + direction) by the tensile force of the tension spring 15 of the expansion / contraction mechanism part 22.

  In this case, the expansion / contraction mechanism 22 performs the operation described with reference to FIG. When the lower (x-direction) tensile force applied to the wire 26 is reduced by the closing operation (swinging operation) of the arm 2, the reduced tensile force is converted into an upward (x + direction) tensile force by the pulley 28. . At this time, when the sum of the upper (x + direction) tensile force and the tensile force of the tension spring 12 is smaller than the tensile force of the tension spring 15, the difference between the two is set as the lower (x-direction) tensile force. To the movable pulley 27.

  Due to the transmitted downward (x-direction) tensile force, the movable pulley 27 moves downward (x-direction) together with the slide portion 14. At this time, the left and right extendable parts 10 move together and move from the protruding position to the retracted position (storage position) in accordance with the movement of the slide part 14. For example, when the arm 2 is closed with respect to the support column 4, the force transmitted by the transmission unit is reduced (for example, becomes zero). In this case, the generating unit causes the expansion / contraction part 10 to be supported on the support leg 6 by a differential force between the force of the first urging member (tensile spring 12) and the force of the second urging member (tensile spring 15). A force for moving the moving part (sliding part 52) in the storing direction is generated.

  In the configuration shown in FIG. 7, the wire 26 is a member that connects the gas spring 30 and the expansion / contraction mechanism portion 22, but the wire 26 may be configured to connect the arm 2 and the expansion / contraction mechanism portion 22. Is possible. By using a spring hinge having a function of reducing the operating force by the spring force as the configuration of the hinge part 5, it is possible to realize a function equivalent to that of the gas spring 30. According to this configuration, the gas spring 30 is not used in the apparatus configuration, but the configuration of the hinge portion 5 using the spring hinges allows the operator to perform the opening operation (swinging operation) and the closing operation (swinging operation) of the arm 2. The operating force can be reduced.

  If the spring hinge is lighter than the gas spring 30, the radiation generating device can be reduced in weight, and the burden on the operator when moving the device can be reduced.

(Configuration of switching unit)
Depending on the location where imaging is performed and the relative positional relationship with other devices around the radiation generating apparatus, it is better not to perform the expansion / contraction operation of the expansion / contraction part 10 in conjunction with the opening / closing operation of the arm 2. There may be cases where the conditions are suitable. In such a case, if it is possible to switch between the case where the opening / closing operation is linked and the case where the opening / closing operation is not linked, the operator can perform an operation according to the shooting environment and shooting conditions.

  The radiation generating apparatus according to the present embodiment transmits a force corresponding to opening / closing of the arm 2 to the transmission unit when interlocking, and does not transmit a force corresponding to opening / closing of the arm 2 to the transmitting unit when interlocking is not performed. A switching unit is further provided.

  Next, in addition to the configuration in which the expansion / contraction part 10 moves (extension / contraction operation) in conjunction with the opening / closing operation of the arm 2 described with reference to FIG. 7, a switching unit for switching between the case of interlocking and the case of not interlocking. The configuration will be described.

  FIG. 8 is a diagram showing the configuration of the radiation generating apparatus according to the present embodiment, and shows a cross-sectional view from the side when the apparatus is moved. The configurations of the radiation generator 1, the arm 2, the support column 4, the support leg 6, the moving mechanism 8, the telescopic mechanism 22, the pulley 23, the wire 26, the gas spring 30, and the pulley 31 are the same as those in FIG.

  The linear guide rail 24 is disposed along the vertical direction (z direction) in the column 4. The linear guide rail 33 is disposed along the vertical direction (z direction) on the arm 2 side in the support column 4. The slide part 34 is configured to be movable on the linear guide rail 33. The wire 35 connects the gas spring 30 and the slide part 34 via the pulley 31.

  The slide portion 36 is configured to be movable on the linear guide rail 24, and the slide portion 36 is provided with a switching portion that performs interlocking switching. The wire 26 connects the expansion / contraction mechanism part 22 and the slide part 36.

  Next, the structure of the switching part provided in the slide part 36 is demonstrated. FIG. 9 is a diagram illustrating the configuration of the switching unit. The slide portion 36 is provided with a hinge portion 39, and the switching rotation portion 40 rotates around the hinge portion 39. The hinge unit 39 is provided with an operation unit 900. As illustrated in FIG. 5 of the second embodiment, the operation unit 900 is configured to protrude from the support column 4. When the operator rotates the operation unit 900, the switching rotation unit 40 can be rotated by 90 ° as shown in FIG.

  The hinge portion 39 has a fixing mechanism that can fix the rotation position of the switching rotation portion 40. For example, when the switching rotation unit 40 rotates to a position perpendicular to the slide unit 36 or when the switching rotation unit 40 rotates to a position parallel to the slide unit 36, the fixing mechanism of the hinge unit 39 is The position of the switching rotation unit 40 is fixed. When the operator performs a rotation operation via the operation unit 900, the fixing of the position by the fixing mechanism of the hinge unit 39 is released.

  In addition, the slide unit 36 is provided with a fixing mechanism that fixes the movement of the slide unit 36 or releases the fixation in accordance with the operation of the operation unit 900. As a configuration of the fixing mechanism, for example, the position of the slide portion 36 can be fixed and released by switching the magnet ON or OFF according to the operation of the operation unit 900.

  When the switching rotation unit 40 rotates to a position perpendicular to the slide unit 36, the fixing mechanism of the slide unit 36 fixes the position of the slide unit 36. Thereby, it becomes possible to prevent the slide part 36 from descending by its own weight.

  Alternatively, when the switching rotation unit 40 rotates to a position that is parallel to the slide unit 36, the fixing mechanism of the slide unit 36 releases the fixing of the position of the slide unit 36. Thereby, the slide part 36 can be moved together with the switching rotation part 40 and the operation part 900 in accordance with the movement of the slide part 34.

  When the switching rotation part 40 rotates to a position parallel to the slide part 36 (position indicated by a solid line in FIG. 9), when the slide part 34 moves upward on the linear guide rail 33, the slide part 34 is switched and rotated. It is comprised so that the part 40 may contact.

  When the switching rotation unit 40 rotates to a position (a position indicated by a broken line in FIG. 9) that is perpendicular to the slide unit 36, the slide unit 34 does not contact the switching rotation unit 40 and is on the linear guide rail 33. Is movable. In this state, since the opening / closing operation of the arm 2 is not transmitted to the expansion / contraction mechanism unit 22 via the switching rotation unit 40, the movement (extension / contraction operation) of the expansion / contraction unit 10 in conjunction with the opening / closing operation of the arm 2 is not performed.

  When the arm 2 is opened (swinging up) while the switching rotation unit 40 is rotated to a position parallel to the slide unit 36, the gas spring 30 extends and the wire 35 is pulled toward the gas spring 30. It is done. The tensile force of the wire 35 is transmitted to the slide part 34, and the slide part 34 moves up on the linear guide rail 33. When the slide part 34 moves upward on the linear guide rail 33, the slide part 34 comes into contact with the switching rotation part 40. Since the rotation position of the switching rotation unit 40 is fixed by the fixing mechanism of the hinge unit 39, the slide unit 36 moves up on the linear guide rail 24 as the slide unit 34 moves up.

  When the slide part 36 moves upward on the linear guide rail 24, the wire 26 is pulled by the upward movement of the slide part 36, and the tensile force of the wire 26 is transmitted to the telescopic mechanism part 22. When the tensile force in the x-direction is transmitted to the expansion / contraction mechanism unit 22, the expansion / contraction mechanism unit 22 performs the operation described with reference to FIG. At this time, in conjunction with the opening operation of the arm 2, the telescopic part 10 arranged in the left-right direction (y direction) moves so as to protrude from the support leg part 6.

  Further, when the arm 2 is closed (swinged down), a force in the compression direction is applied to the expanded gas spring 30, and the length of the gas spring 30 is reduced by the amount of extension, and the tensile force on the wire 35 is reduced. The slide portion 34 descends on the linear guide rail 33 due to its own weight. When the slide part 34 moves down on the linear guide rail 33, the slide part 36 also moves down on the linear guide rail 24 by its own weight together with the switching rotation part 40 in contact with the slide part 34. Due to the downward movement of the slide portion 36, the tensile force applied to the wire 26 is reduced. The reduced tensile force is transmitted to the expansion / contraction mechanism unit 22, and the expansion / contraction mechanism unit 22 performs the operation described with reference to FIG. At this time, in conjunction with the closing operation of the arm 2, the extendable part 10 arranged in the left-right direction (y direction) moves from the position protruding from the support leg 6 to the retracted position (storage position).

  According to this embodiment, the expansion / contraction operation | movement of the expansion-contraction part 10 interlocked with the opening / closing operation | movement with respect to the support | pillar 4 of the arm 2 is attained. When shooting, the telescopic part 10 is moved so as to project in conjunction with the opening operation of the arm 2, and when moving, the telescopic part 10 is moved to the storage position in conjunction with the closing operation of the arm 2. By storing the device, the device width can be changed according to the use situation.

  Further, the switching unit arranged on the support 4 side close to the arm 2 allows the operator to switch between the case where the opening / closing operation is linked and the case where the opening / closing operation is not linked depending on the shooting environment and shooting conditions. It becomes possible. It is possible to reduce the operation burden on the operator.

(Fourth embodiment)
In the present embodiment, a configuration in which the arm 2 can expand and contract will be described. In FIG. 10 to FIG. 12 described below, the same reference numerals are assigned to the same configurations as those in the first embodiment, the second embodiment, and the third embodiment, and redundant descriptions are omitted. To do. FIG. 10 is a diagram showing the configuration of the radiation generating apparatus according to the fourth embodiment, and shows a cross-sectional view from the side when the apparatus is moved. The support leg hinge portion 7 is not shown in FIG. 10, but may be configured at the position shown in FIG.

  In the radiation generating apparatus according to this embodiment, the arm 2 is configured to be extendable and contractible. The arm 2 includes a fixed arm 41 supported so as to be openable and closable with respect to the support column, a movable arm 42 movably held with respect to the fixed arm, a moving unit that moves the movable arm, and movement of the moving unit. A movement detecting unit for detecting the movement. The expansion / contraction mechanism part 22 is a configuration in which the expansion / contraction part 10, the linear guide rail 11, the tension spring 12, the linear guide rail 13, the slide part 14, the pulley 16, and the wire 17 described in FIG.

  In the present embodiment, the expansion / contraction mechanism unit 22 drives the second expansion / contraction part 49 movably held with respect to the expansion / contraction part 10, a drive unit that moves the second expansion / contraction part, and driving of the drive unit. An expansion / contraction detection unit for detection is further provided.

  The fixed arm 41 is connected to the support column 4 via the hinge portion 5. The fixed arm 41 can be opened and closed with respect to the column 4 by the rotation of the hinge portion 5. The fixed arm 41 has a hollow structure, and a moving part of the movable arm 42 and a holding part for holding the moving position are provided inside the hollow structure. One end (upper end side in FIG. 10) of the movable arm 42 is connected to the moving unit, and the radiation generating unit 1 is provided on the other end (lower end side in FIG. 10) via the rotating unit 3. It has been.

  The moving unit includes a rack 43 and a pinion 44. The rack 43 is disposed inside the fixed arm 41. The pinion 44 is disposed in the fixed arm 41 and is configured to be rotatable on the rack 43 according to the movement of the movable arm 42.

  As a movement detection unit that detects the movement of the movement unit, the pinion 44 is provided with a rotation sensor, and the movement detection unit detects the number of rotations of the pinion 44. The control unit 45 is connected to the movement detection unit via the communication unit (electric cable 46). The control unit 45 can acquire information on the rotation speed of the pinion 44 from the movement detection unit through communication via the communication unit (electric cable 46).

  Moreover, the control part 45 is connected with the drive part (motor) which rotates the pinion 50 (FIG. 11) via the communication part (electrical cable 47). The control unit 45 acquires information on the number of rotations of the pinion 50 by the movement of the second expansion / contraction unit 49 from the expansion / contraction detection unit (encoder) of the drive unit (motor) by communication via the communication unit (electric cable 47). Is possible. Note that the configuration of the communication unit is not limited to the configuration using the wired electric cables 46 and 47, and the control unit 45 can also acquire information on the number of rotations of the pinions 44 and 49 by wireless communication. is there.

(Configuration of telescopic mechanism 22)
Next, the structure of the expansion / contraction mechanism part 22 of this embodiment is demonstrated. The expansion / contraction mechanism part 22 of this embodiment has the expansion / contraction part 10 and the 2nd expansion / contraction part 49 which can move to the direction extended / contracted with respect to the expansion / contraction part 10. FIG. 11 is a diagram illustrating the configuration of the expansion / contraction mechanism 22 of the present embodiment. In the configuration of FIG. 11, the same configurations as those described in FIGS. 2 and 6 are denoted by the same reference numerals, and redundant descriptions are omitted.

  The linear guide rail 51 is fixed to the extendable part 10. A sliding portion 52 is fixed to one side of the stretchable portion 10 in the longitudinal direction, and is configured to be movable on the linear guide rail 11. The linear guide rail 51 is fixed to the other side (opposite side) in the longitudinal direction of the telescopic part 10 to which the sliding part 52 is fixed.

  The second extendable part 49 is configured to be movable on the linear guide rail 51 via the sliding part 48. When the sliding portion 48 moves on the linear guide rail 51, the second stretchable portion 49 can be stretched with respect to the stretchable portion 10.

  The pinion 50 is disposed on the stretchable part 10 side, and the second stretchable part 49 is provided with a rack 53 that meshes with the pinion 50. The rack 53 may be provided with a length that secures the movement range of the second extendable portion 49 (the range between the protruding position and the storage position). By the rotation of the pinion 50, the second extendable portion 49 can move in the left-right direction (y direction) of the paper surface of FIG.

  The pinion 50 is provided with a drive unit (motor) for rotating the pinion 50, and the drive unit (motor) and the control unit 45 shown in FIG. 10 are connected by a communication unit (electric cable 47). It is connected. The control unit 45 acquires information on the number of rotations of the pinion 50 due to the movement of the second expansion / contraction unit 49 from the expansion / contraction detection unit (encoder) of the drive unit (motor) by communication via the communication unit (electric cable 47). . The control unit 45 controls the drive of the drive unit (motor) using the detection result of the movement detection unit and the detection result of the expansion / contraction detection unit. The control unit 45 uses the information on the rotational speed of the pinion 44 acquired through the communication unit (electric cable 46) and the information on the rotational speed of the pinion 50 acquired through the communication unit (electric cable 47). The motor is controlled so that the rotation speed of the pinion 50 becomes a predetermined rotation speed.

  The control unit 45 includes a storage unit (memory) that stores a control table (FIG. 13) in which the movement amount of the second extendable unit 49 and the movement amount of the movable arm 42 are associated with each other. The control unit 45 determines the number of rotations of the pinion 50 with reference to the control table when controlling the drive unit (motor) of the telescopic mechanism unit 22. The control unit 45 controls the motor according to the determined rotation speed.

  FIG. 13 is a diagram illustrating a control table included in the control unit 45 of the radiation generating apparatus according to the present embodiment. The amount of movement of the movable arm 42 (the number of rotations of the pinion 44) and the second expansion / contraction unit 49 are illustrated. The movement amount (the number of rotations of the pinion 50) and the one-to-one correspondence are configured. The control unit 45 determines the movement amount (the rotation number of the pinion 50) of the second expansion / contraction unit 49 corresponding to the movement amount (the rotation number of the pinion 44) of the movable arm 42 acquired from the movement detection unit. For example, when the movement amount of the movable arm 42 (the rotation speed of the pinion 44) acquired from the movement detection unit is n2, the movement amount (the rotation speed of the pinion 50) corresponding to n2 is determined as N2. To do.

  At this time, when the rotation number (measured value) of the pinion 50 acquired from the expansion / contraction detection unit is Np, the control unit 45 controls the rotation of the drive unit (motor) so that Np = N2. Thereby, the expansion / contraction operation of the second expansion / contraction part 49 can be performed in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2. The amount of protrusion by the expansion / contraction operation of the second expansion / contraction part 49 is controlled by the control unit 45 in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2.

  FIG. 12 is a diagram for explaining the flow of processing of the control unit 45 when the operator operates the arm 2. In step S <b> 1, the control unit 45 calculates the expansion / contraction amount of the movable arm 42 from the detection result of the rotation number of the pinion 44, and calculates the initial length of the arm 2. The control unit 45 can calculate the amount of expansion / contraction of the movable arm 42 from the detection result of the rotation number of the pinion 44 and the pitch of the pinion. For example, if the length of the fixed arm 41 is L1 and the extension / contraction amount of the movable arm 42 is L2, the control unit 45 acquires the initial length of the arm 2 as L1 + L2.

  In step S <b> 2, the control unit 45 further acquires the detection result of the rotation number of the pinion 44 and acquires the length of the arm 2. For example, when the expansion / contraction amount of the movable arm 42 acquired from the rotation speed detection result of the pinion 44 acquired here is L2 ', the length of the arm 2 is acquired as L1 + L2'.

  In step S3, the control unit 45 determines whether or not there is a change in the length of the arm 2 from the calculation results of steps S1 and S2. If there is no change in the length of the arm 2 (L2 = L2 ') (S3-No), the process returns to step S2 and the same process is repeated. On the other hand, if it is determined in step S3 that the arm length is changed (L2 ≠ L2 ') (S3-Yes), the process proceeds to step S4.

  In step S4, the control unit 45 refers to the control table to determine the rotational speed of the pinion 50, and the control unit 45 controls the motor according to the determined rotational speed. Thereby, the expansion / contraction operation of the second expansion / contraction part 49 can be performed in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2. The amount of protrusion by the expansion / contraction operation of the second expansion / contraction part 49 is controlled by the control unit 45 in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2.

  According to the present embodiment, the arm 2 can be extended and contracted, so that a wide range of motion can be secured for the radiation generation unit 1 without moving the position of the radiation generation apparatus, and various imaging parts can be obtained. Corresponding to the above, it is possible to align the radiation generating unit 1.

  In addition, the expansion / contraction operation of the second expansion / contraction part 49 can be performed in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2. When moving the movable arm 42 in the extending direction, the control unit 45 moves the second extendable part 49 so as to project in conjunction with the extension operation of the movable arm 42. Further, when the control unit 45 moves the movable arm 42 in the contracting direction, the control unit 45 moves the second expansion / contraction part 49 to the storage position in conjunction with the contraction operation of the movable arm 42, thereby moving the second expansion / contraction part 49. By storing the device, the device width can be changed according to the use situation.

(Fifth embodiment)
In the present embodiment, a configuration will be described in which the expansion / contraction operation of the second expansion / contraction part 49 (FIG. 11) is performed in conjunction with the opening / closing angle θ of the arm 2 (FIG. 1 (b)). The configuration of the present embodiment has the same configuration as that of the first to fourth embodiments, and the same configuration is denoted by the same reference numeral, and redundant description is omitted.

  The arm 2 further includes an angle detection unit that detects an angle opened and closed with respect to the support column 4. The angle detection unit can be provided with a sensor for detecting the opening / closing angle of the arm 2 on the rotation axis of the hinge unit 5, for example. Or it is also possible to detect the opening / closing angle of the arm 2 by detecting an inclination using an inclination sensor as a structure of an angle detection part.

  The angle detection unit is connected to the control unit 45 via a communication unit (electric cable). The control unit 45 can acquire information on the opening / closing angle of the arm 2 from the angle detection unit through communication via the communication unit. The control unit 45 also includes the detection result of the expansion / contraction detection unit on the second expansion / contraction unit 49 side, the detection result of the movement detection unit on the movable arm 42 side, and the detection result of the opening / closing angle of the arm 2 by the angle detection unit. It is possible to control the drive of the drive part (motor) of the 2nd expansion-contraction part 49 using.

  The storage unit of the control unit 45 further stores a second control table (FIG. 14) in which the amount of movement of the second expansion / contraction unit 49 (the number of rotations of the pinion 50) is associated with the angle at which the arm 2 is opened and closed. Yes. The control unit 45 uses the second control table to drive the drive unit (motor) so that the amount of movement of the second expansion / contraction unit (the number of rotations of the pinion 50) corresponds to the angle at which the arm 2 is opened and closed. To control.

  FIG. 14 is a diagram illustrating a control table included in the control unit 45 of the radiation generating apparatus according to the present embodiment. The movement amount of the second expansion / contraction unit 49 (the number of rotations of the pinion 50) and the opening / closing of the arm 2 are illustrated. The angle is configured to correspond one to one. The control unit 45 determines the amount of movement (the number of rotations of the pinion 50) of the second expansion / contraction unit 49 corresponding to the opening / closing angle of the arm 2 acquired from the angle detection unit. For example, when the opening / closing angle of the arm 2 acquired from the angle detection unit is θ2, the movement amount (the rotation speed of the pinion 50) of the second expansion / contraction unit 49 corresponding to θ2 is determined as NN2.

  At this time, when the rotation number (measured value) of the pinion 50 acquired from the expansion / contraction detection unit is NNp, the control unit 45 controls the rotation of the drive unit (motor) so that NNp = NN2. The amount of protrusion by the expansion / contraction operation of the second expansion / contraction part 49 is controlled by the control unit 45 in conjunction with the opening / closing angle of the arm 2. Accordingly, the expansion / contraction operation of the second expansion / contraction portion 49 can be performed in conjunction with the opening / closing of the arm 2.

  When the movable arm 42 moves and the arm 2 opens and closes with respect to the support column 4, the control unit 45 calculates the movement amount of the second expansion / contraction unit 49 acquired using the control table (FIG. 13) and the second amount. The drive of the drive unit is controlled using the movement amount of the second expansion / contraction part 49 obtained using the control table (FIG. 14).

  For example, it is assumed that the movement amount (the rotation speed of the pinion 50) of the second expansion / contraction part 49 acquired using the control table (FIG. 13) is N2. Further, it is assumed that the amount of movement (the number of rotations of the pinion 50) of the second expansion / contraction part 49 acquired using the second control table (FIG. 14) is NN2. In this case, the control unit 45 controls the drive of the drive unit (motor) so that the rotation speed of the pinion 50 is N2 + NN2.

  At this time, the expansion / contraction part 10 expands and contracts in conjunction with the opening and closing of the arm 2. Accordingly, the expansion / contraction part 10 and the second expansion / contraction part 49 perform the expansion / contraction operation in conjunction with the opening / closing of the arm 2. According to the present embodiment, the expansion / contraction operation of the expansion / contraction part 10 and the second expansion / contraction part 49 can be performed in conjunction with the opening / closing of the arm 2.

  Further, the expansion / contraction operation of the second expansion / contraction portion 49 can be performed in conjunction with the expansion / contraction amount of the movable arm 42 constituting the arm 2 and the opening / closing angle of the arm 2. The control unit 45 moves the movable arm 42 in the extending direction, and moves the second extendable unit 49 so as to protrude when moving the arm 2 in the opening direction. Further, the control unit 45 moves the movable arm 42 in the contracting direction and moves the second telescopic unit 49 to the storing position to store the second telescopic unit 49 when moving the arm 2 in the closing direction. As a result, the device width can be changed according to the use situation.

(Other embodiments)
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

1 Radiation generator, 2 arms, 4 struts, 6 support legs, 10 telescopic parts

Claims (20)

A radiation generating unit that generates radiation, an arm that supports the radiation generating unit, a support that supports the arm, and a support leg that supports the support, and the arm can be opened and closed with respect to the support. In a radiation generator,
The radiation generating apparatus, wherein the support leg includes an expansion / contraction portion that expands and contracts in conjunction with opening and closing of the arm. A transmission unit for transmitting force according to the opening and closing of the arm;
A telescopic mechanism that moves the telescopic part by the transmitted force;
The apparatus for generating radiation according to claim 1, further comprising:   The radiation generating apparatus according to claim 2, wherein the transmission unit includes a wire that connects the arm and the telescopic mechanism unit. The arm is provided with a support portion that supports the arm with respect to the support column by urging elastic force.
The radiation generating apparatus according to claim 1, wherein the support portion connects the arm and the support column. The telescopic mechanism is
A moving unit that movably supports the telescopic unit with respect to the support leg unit;
A generating unit for generating a force for moving the moving unit;
The radiation generating apparatus according to claim 2, wherein: The generator is
A first urging member that urges the moving part in a direction in which the elastic part protrudes from the support leg part;
A second urging member that urges the moving part in a direction in which the extendable part is accommodated in the support leg part,
The radiation generating apparatus according to claim 5, wherein the force of the first urging member is smaller than the force of the second urging member. The generator is
The force for moving the moving part is generated based on a difference between the transmitted force and the force of the first urging member and the force of the second urging member. 7. The radiation generating apparatus according to 6.   The said generation part produces | generates the force which moves the said moving part in the direction which protrudes the said expansion-contraction part from the said support leg part by the said difference, when the said arm opens with respect to the said support | pillar. 8. The apparatus for generating radiation according to 7.   The said generation part produces | generates the force which moves the said moving part in the direction which accommodates the said expansion-contraction part in the said support leg part by the said difference, when the said arm closes with respect to the said support | pillar. The radiation generating apparatus according to 1. When the arm closes against the column, the transmitted force is zero,
The generating unit moves the moving unit in a direction in which the expansion / contraction unit is accommodated in the support leg by a difference force between the force of the first urging member and the force of the second urging member. The radiation generating apparatus according to claim 9, wherein a force for generating the radiation is generated.   The radiation according to any one of claims 1 to 10, wherein the expansion / contraction part is configured to be expandable / contractable in conjunction with opening / closing of the arm from at least one of width directions of the radiation generating apparatus. Generating device.   The radiation according to claim 11, wherein the expansion / contraction part is configured to be expandable / contractable in conjunction with opening / closing of the arm from at least one of movement directions of the radiation generating device intersecting the width direction. Generating device.   A switching unit that transmits a force according to opening and closing of the arm to the transmission unit when the interlocking is performed and does not transmit a force according to opening and closing of the arm to the transmission unit when the interlocking is not performed; The apparatus for generating radiation according to claim 2 or 3. The arm is
A fixed arm supported so as to be openable and closable with respect to the column;
A movable arm held movably with respect to the fixed arm;
A moving unit for moving the movable arm;
A movement detecting unit for detecting movement of the moving unit,
The telescopic mechanism is
A second stretchable part that is stretchably held with respect to the stretchable part;
A drive unit that moves the second telescopic unit;
The radiation generation apparatus according to claim 2, further comprising: an expansion / contraction detection unit that detects driving of the driving unit.   The radiation generating apparatus according to claim 14, further comprising a control unit that controls driving of the driving unit using the detection result of the movement detection unit and the detection result of the expansion / contraction detection unit. . The control unit includes a storage unit that stores a control table in which the amount of movement of the second extendable unit and the amount of movement of the movable arm are associated with each other.
The said control part controls the drive of the said drive part so that it may become the movement amount of the said 2nd expansion-contraction part corresponding to the movement amount of the said movable arm using the said control table. The radiation generating apparatus according to 1. The arm is
An angle detector for detecting an angle of opening and closing with respect to the support;
The controller is
The drive of the drive unit is controlled using a detection result of the movement detection unit, a detection result of the expansion / contraction detection unit, and a detection result of the angle detection unit. Radiation generation equipment. The storage unit of the control unit further stores a second control table in which the amount of movement of the second extendable unit is associated with the angle at which the arm is opened and closed.
The control unit uses the second control table to control the driving of the driving unit so that the amount of movement of the second telescopic unit corresponding to the angle at which the arm opens and closes. The radiation generating apparatus according to claim 16. A radiation generating unit that generates radiation, an arm that supports the radiation generating unit, a support that supports the arm, and a support leg that supports the support, and the arm can be opened and closed with respect to the support. In a radiation generator,
A plurality of extendable parts that can be extended and contracted with respect to the support leg part;
An expansion / contraction mechanism part that moves another expansion / contraction part according to the movement of any one expansion / contraction part among the plurality of expansion / contraction parts,
An apparatus for generating radiation, comprising: A radiation generating unit that generates radiation, an arm that supports the radiation generating unit, a support that supports the arm, and a base member that supports the support, and the arm can be opened and closed with respect to the support. In radiation generating equipment,
The base member includes an expansion / contraction part that expands and contracts in conjunction with opening and closing of the arm.

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