JP2016028247A - X-ray imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray imaging apparatus that allows lock release comparatively easily at appropriate timing while stably holding a battery so that the battery accidentally drops.SOLUTION: An X-ray imaging apparatus 201 comprises: an X-ray sensor 12 that converts an X-ray to an image signal; a battery 100 that supplies power for driving the X-ray sensor 12; a battery holder 15 that freely detachably holds the battery 100; a lock mechanism that locks the battery 100 in the state in which the battery 100 is mounted on the battery holder 15; and a lock release mechanism that releases the lock by the lock mechanism. In the lock release mechanism, the lock by the lock mechanism is released by at least two operations of an operator.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an X-ray imaging apparatus equipped with a detachable battery.

  X-ray imaging that irradiates a subject with X-rays and detects the intensity distribution of the X-rays transmitted through the subject to obtain an X-ray image of the subject is widely performed in the medical field and the industrial field. The method of obtaining an X-ray image began with a film screen method in which a photosensitive film that captures visible light emitted by a rare earth phosphor sensitive to X-rays is chemically developed and visualized. After that, new methods are created by technological innovation. Among them, there is an imaging device (FPD; Flat Panel Detector) using a flat sensor in which pixels composed of minute photoelectric conversion elements and switching elements are arranged in a grid pattern, using semiconductor process technology. The advantage of this device is that it has a very wide dynamic range compared to conventional photosensitive films, so that a stable X-ray image can be obtained even if the X-ray exposure varies, and an X-ray image can be obtained because no chemical treatment is required. It is to be obtained immediately.

On the other hand, the X-ray imaging apparatus is classified into a stationary type installed at a predetermined place such as a general imaging room and a portable type that can be freely carried. In recent years, there is an increasing need for a portable X-ray imaging apparatus (hereinafter sometimes referred to as “electronic cassette” or “cassette” for short).
In the conventional electronic cassette, the control unit is electrically connected to a cable intended for power supply from the outside. Therefore, the cable processing is complicated, which hinders the handling of the electronic cassette, and the cable having an excessive length becomes an obstacle. Further, in a clean (sterilized) environment such as an operating room, it is contraindicated that an imaging system including a cable touches an open (non-sterilized) area such as a floor surface.

  In recent years, therefore, wireless cassettes that have eliminated power supply cables and built-in batteries have appeared, and it is expected that the degree of freedom in X-ray imaging will be dramatically increased. At that time, it is necessary to attach and detach the battery for charging and replacement of old and new products, but the battery is not attached and detached when the cassette drive cannot be stopped, such as when acquiring X-ray images or transferring images to the control unit. There is a need to. Such techniques are disclosed in Patent Documents 1 and 2.

JP 2007-333380 A JP 2009-53661 A

  However, since the wire arecassette is carried and used, the battery is securely held even when shocks such as vibration or dropping that are assumed in normal use are applied, or when it is inserted or removed between the subject and the bed. It is indispensable. On the other hand, considering the frequency of battery attachment / detachment, the lock mechanism does not require a special tool, and it is also important for improving the feeling of use of the wireless cassette that the operator can operate it relatively easily.

  The present invention has been made in view of such problems, and is an X-ray imaging apparatus capable of releasing a lock relatively easily at an appropriate timing while stably holding a battery so that it does not accidentally drop off. The purpose is to provide.

  An X-ray imaging apparatus of the present invention includes an X-ray sensor that converts X-rays into an image signal, a battery that supplies electric power for driving the X-ray sensor, a battery holder that detachably holds the battery, An X-ray imaging apparatus comprising: a lock mechanism that locks the battery in a state in which the battery is mounted on the battery holder; and an unlock mechanism that unlocks the lock by the lock mechanism, wherein the unlock mechanism is operated by an operator. The lock by the lock mechanism is released by at least two operations.

  According to the present invention, it is possible to release the lock relatively easily at an appropriate timing while stably holding the battery so that it does not accidentally drop off.

It is a figure which shows the structure of the X-ray imaging apparatus which concerns on this embodiment. It is a figure which shows the structure of the X-ray imaging apparatus at the time of the battery unmounted of 1st Embodiment. It is sectional drawing of the X-ray imaging apparatus at the time of battery non-mounting. It is a perspective view which shows the structure of a battery. It is a figure which shows the structure of the X-ray imaging apparatus at the time of battery mounting. It is sectional drawing of the X-ray imaging apparatus at the time of battery lock. It is sectional drawing of the X-ray imaging apparatus at the time of battery lock. It is sectional drawing of an X-ray imaging apparatus when the lock | rock of a battery is cancelled | released. It is sectional drawing of an X-ray imaging apparatus when the lock | rock of a battery is cancelled | released. It is a figure which shows the structure of the X-ray imaging apparatus which controls the movement of a battery lock member. It is a figure which shows the structure of the X-ray imaging apparatus at the time of battery mounting of 2nd Embodiment. It is sectional drawing of the X-ray imaging apparatus at the time of battery lock. It is a figure which shows the structure of the X-ray imaging apparatus at the time of the battery unmounted of 3rd Embodiment. It is sectional drawing of the X-ray imaging apparatus at the time of battery lock. It is sectional drawing which shows operation | movement of a battery lock operation knob.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram showing a common configuration among the X-ray imaging apparatuses according to the first to third embodiments. In the X-ray imaging apparatus 200, an X-ray sensor 12, a drive control unit 13, a memory 14, and a battery holder 15 are accommodated in a housing 11. By attaching the charged battery 100 to the battery holder 15, the battery 100 is electrically connected to the X-ray imaging apparatus 200, and the X-ray sensor 12, the drive control unit 13, and the memory 14 are connected via the holder-side connection unit 17. To supply power. In FIG. 1, an arrow A indicates a direction in which the battery 100 is connected to the holder-side connecting portion 17.

(First embodiment)
Next, an X-ray imaging apparatus 201 according to the first embodiment will be described with reference to FIGS.
FIG. 2 is a plan view showing the X-ray imaging apparatus with the battery removed from the battery holder. FIG. 2 shows a surface opposite to the surface on which the X-ray sensor 12 is disposed. 3 is a cross-sectional view of the II line shown in FIG. 2 as viewed from the direction of the arrow.
The battery holder 15 is provided with a damper member 20 over the periphery of the holder-side connection portion 17 in the inner side surface 15a from which the holder-side connection portion 17 is projected. The damper member 20 is, for example, a thin rubber plate and is affixed to the inner side surface 15a. In addition, on the inner side surface 15 a, hole-shaped insertion guides 16 are formed on both sides of the holder side connection portion 17.

  On the other hand, a battery lock member 18 protruding toward the inside of the battery holder 15 is provided on the inner side surface 15b facing the inner side surface 15a. Two battery lock members 18 are provided apart from each other in the width direction of the battery holder 15 (left-right direction shown in FIG. 2). Each battery lock member 18 is formed with a battery lock operation knob 19 as an operation member that can be operated by the operator so as to be exposed on the upper surface of the battery holder 15. The two battery lock members 18 are configured to be movable by a predetermined distance in a direction close to each other from the state shown in FIG.

  In addition, the inner side surface 15c and the inner side surface 15d adjacent to the inner side surface 15a are provided with pop-up mechanisms 21 at positions close to each other. The pop-up mechanism 21 has a function of always urging the mounted battery 100 upward.

4A is a perspective view of the battery as viewed from above, and FIG. 4B is a perspective view of the battery as viewed from below. 4A and 4B, the direction in which the battery 100 is connected to the holder side connecting portion 17 is indicated by an arrow A.
A battery terminal 101 that can be connected to the holder-side connecting portion 17 of the battery holder 15 is provided on the side surface 100 a facing the inner side surface 15 a of the battery holder 15 among the side surfaces of the battery 100. In addition, insertion guides 102 that can be inserted into the insertion guide 16 are provided on both sides of the battery terminal 101 on the side surface 100a. The insertion guide 102 can determine the insertion direction of the battery 100 in a predetermined direction. In addition, the insertion guide 102 and the insertion guide 16 are fitted to each other so that the battery 100 is not loose when mounted on the battery holder 15 so that an excessive load is not applied to the holder-side connecting portion 17 and the battery terminal 101. It has become.

  On the other hand, a lock digging portion 104 that can be engaged with the battery lock member 18 is formed on the side surface 100b opposite to the side surface 100a. Two locking digging portions 104 are formed in correspondence with the battery lock member 18 and spaced apart in the width direction of the side surface 100b (in the left-right direction shown in FIG. 2). In addition, each lock digging portion 104 has a detachable groove 104a formed along the vertical direction, and a lock ridge formed perpendicularly to the detachable groove 104a and in the horizontal direction adjacent to each other. And a groove 104b.

  In addition, on the side surface 100c and the side surface 100d adjacent to the side surface 100a, receiving portions 103 that engage with the pop-up mechanism 21 are formed at positions corresponding to the pop-up mechanism 21 of the battery holder 15, respectively.

Next, an operation for attaching the battery 100 to the battery holder 15 will be described.
First, before the battery 100 is attached to the battery holder 15, the operator moves the two battery lock members 18 in the direction of separating, as shown in FIG.
Next, the operator inserts the battery 100 into the battery holder 15 along the direction of arrow A from above. At this time, since the inserted guide 16 guides the insertion guide 102, the operator can accurately position the battery 100 in the battery holder 15. Furthermore, when the operator pushes the battery 100 into the battery holder 15 from above, the two battery lock members 18 pass through the attachment / detachment grooves 104a of the corresponding locking digging portions 104, and the battery 100 is attached to the battery holder. 15 is mounted.
In a state where the battery 100 is mounted in the battery holder 15, the battery terminal 101 and the holder side connection portion 17 are connected, and the pop-up mechanism 21 is engaged with the receiving portion 103.

FIG. 5 is a plan view of the X-ray imaging apparatus showing a state in which the battery 100 is locked to the battery holder 15. FIG. 6 is a cross-sectional view of the II-II line of FIG. 7 is a cross-sectional view of the III-III line in FIG. 5 as viewed from the direction of the arrow.
After the battery 100 is mounted in the battery holder 15, as shown in FIG. 5, the operator moves the two battery lock operation knobs 19 in directions close to each other. At this time, as shown in FIG. 6, when the battery lock member 18 enters the lock groove 104b of the corresponding lock digging portion 104, the battery 100 cannot move upward, and the battery 100 is not connected to the battery. Locked in the holder 15.

When the battery 100 is locked in the battery holder 15, the restoring force of the damper member 20 generated by being compressed by the battery 100 causes the battery 100 to move toward the inner surface 15 b where the battery lock member 18 is provided. Energize. As shown in FIG. 7, the pop-up mechanism 21 has a push-up member 21 a that is pivotally supported by the battery holder 15. The tip of the push-up member 21a is urged to rotate upward by a spring (not shown). Therefore, in a state where the battery 100 is locked in the battery holder 15, the restoring force of the pop-up mechanism 21 generated by the pop-up mechanism 21 being pressed by the battery 100 moves the battery 100 upward via the receiving portion 103. Energize. Note that the pop-up mechanism 21 urges the battery 100 through a ridge line portion that is excellent in strength, and thus the battery 100 body is unlikely to be bent.
Thus, since the battery 100 is firmly held in the battery holder 15 by the urging forces in two different directions, resistance to vibration and impact is improved.
In addition, when using the material which has a sealing property for the damper member 20, the airtightness around the battery terminal 101 at the time of battery mounting can be ensured.

Next, an operation for removing the battery 100 from the battery holder 15 will be described.
When removing the battery 100, the operator moves the two battery lock operation knobs 19 in directions away from each other. At this time, each battery lock member 18 moves from the locking groove 104b to the attaching / detaching groove 104a. Therefore, the battery 100 is unlocked with respect to the battery holder 15 and is allowed to move in the vertical direction. Here, since the pop-up mechanism 21 urges the battery 100 upward via the receiving portion 103, the battery 100 is lifted with respect to the battery holder 15 as soon as the lock is released.
8 and 9 are cross-sectional views showing states when the battery is unlocked from the battery locked state shown in FIGS. 6 and 7, respectively.
Here, the battery lock member 18, the battery lock operation knob 19 and the lock digging portion 104 of the battery 100 described above constitute a lock mechanism and a lock release mechanism.

Thus, even if the battery 100 is firmly held in the battery holder 15, the lock can be easily released by simply moving the battery lock operation knob 19 by the operator, and the battery 100 can be easily removed. Can be taken out from.
On the other hand, since the operator needs to move the two left and right battery lock operation knobs 19 in directions away from each other in order to release the lock, unlocking that is not intended by the operator is prevented.

By the way, the normal drive state of the X-ray sensor 12 which converts X-rays into image signals is classified into the following six, for example.
(1) Not energized (sleep state)
(2) A state of being energized and waiting for a signal from the drive control unit 13 (before shooting preparation)
(3) The state in which the camera is ready for shooting (preparing for shooting)
(4) A state in which imaging is possible but X-rays are not irradiated (5) A state in which X-rays are irradiated and images are acquired (6) A state in which image signals are stored in the memory 14 after image acquisition .

  Among these, in the state of (5) and (6), if energization from the battery 100 to the X-ray sensor 12, the drive control unit 13, and the memory 14 is cut off, the image is lost and re-imaging is required. Directly linked to increased radiation exposure. Therefore, a mechanism for restricting the unlocking of the battery 100 can be added to the X-ray imaging apparatus described above.

Specifically, as shown in FIG. 10, the X-ray imaging apparatus 201 includes a regulating member 27 that can advance in the direction of arrow B with respect to a path along which the battery lock member 18 moves to unlock the battery 100. Yes. The restricting member 27 is coupled to an actuator 28 that is movable in response to an instruction from the drive control unit 13. Therefore, the drive control unit 13 advances the regulating member 27 via the actuator 28 so that the energization to the X-ray sensor 12, the drive control unit 13, and the memory 14 is not interrupted, and the battery lock operation knob 19 by the operator is moved. Regulate the operation.
Specifically, energization of the drive control unit 13 and the memory 14 is performed as soon as a remaining battery that can withstand a series of photographing operations is attached. The drive control unit 13 detects this and causes the regulating member 27 to protrude through the actuator 28.
Further, in a state where the energization to the X-ray sensor 12, the drive control unit 13, and the memory 14 may be interrupted, the drive control unit 13 retracts the regulating member 27 via the actuator 28 and the battery lock by the operator is performed. The operation knob 19 can be operated. By configuring in this way, it is possible to prevent an operator's erroneous operation and reduce the need for re-photographing.
Note that when the remaining battery level is less than the amount required for shooting, the drive control unit 13 performs control so that the image storage in the memory 14 is completed and a new shooting preparation is not entered. Then, the regulating member 27 may be retracted via the actuator 28 so that the operator can operate the battery lock operation knob 19.

Normally, in imaging in which centering with the X-ray source is performed at the center of the X-ray imaging apparatus, a bending load is applied to the X-ray imaging apparatus 201 because the subject is placed on the X-ray imaging apparatus 201. However, in the present embodiment, as shown in FIG. 2, the battery holder 15 is retracted from the center of the housing 11, so that it is possible to avoid the multi-axis concave bending of the battery 100. .
Further, in the present embodiment, only the configuration in which the lock of the battery 100 is released by the operation of moving the left and right battery lock operation knobs 19 in directions away from each other has been described, but the present invention is not limited to this case. For example, the battery 100 may be unlocked by moving the left and right battery lock operation knobs 19 in directions close to each other.

(Second Embodiment)
Next, an X-ray imaging apparatus 202 according to the second embodiment will be described with reference to FIGS. 11 and 12.
FIG. 11 is a plan view showing the X-ray imaging apparatus in a state where a battery is mounted on the battery holder. 12 is a cross-sectional view taken along the line IV-IV shown in FIG. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
The battery holder 15 of the present embodiment is detachably equipped with a flat battery lock member 23 that covers the entire battery 100 from above. At one end of the battery lock member 23, two battery lock operation knobs 24 as operation members that can be operated by an operator are provided apart from each other. As shown in FIG. 12, a lock portion 24 a that protrudes in the horizontal direction is formed at the bottom of each battery lock operation knob 24. In addition, each battery lock operation knob 24 can rotate around the vertical axis. By rotating each battery lock operation knob 24, the lock portion 24 a can be protruded from the battery lock member 23.
As shown in FIG. 12, a damper member 22 is provided on the lower surface of the battery lock member 23. The damper member 22 is, for example, a thin rubber plate and is attached to the lower surface of the battery lock member 23.

Next, an operation for attaching the battery 100 to the battery holder 15 will be described.
First, before attaching the battery 100 to the battery holder 15, the operator removes the battery lock member 23 from the battery holder 15, and pushes the battery lock operation knob 24 so that the lock portion 24 a does not protrude from the battery lock member 23. Keep rotating.
Next, the operator inserts the battery 100 into the battery holder 15. Thereafter, the battery lock member 23 is attached to the battery holder 15 so as to cover the battery 100 from above. At this time, the operator inserts, between the housing 11 and the battery holder 15, the end of the side opposite to the side where the battery lock operation knob 24 is provided among the sides of the battery lock member 23. Next, the operator rotates the two battery lock operation knobs 24 while pushing the battery 100 into the battery holder 15 through the battery lock member 23 from above. The battery 100 is locked to the battery holder 15 by rotating the battery lock operation knob 24 and inserting the lock portion 24 a between the housing 11 and the battery holder 15. The two battery lock operation knobs 24 are configured to be inserted between the casing 11 and the battery holder 15 by rotating in two different directions.

  When the battery 100 is locked in the battery holder 15, the damper member 22 attached to the lower surface of the battery lock member 23 is positioned so as to substantially match the outer ridge line of the battery 100. Therefore, the restoring force of the damper member 22 generated by being compressed between the ridge line portion of the battery 100 and the battery lock member 23 urges the battery 100 downward. Similarly to the first embodiment, since the damper member 20 is provided on the inner surface 15a of the battery holder 15, the restoring force of the damper member 20 generated by being compressed by the battery 100 is 100 is urged toward the inner surface 15b. Thus, since the battery 100 is firmly held in the battery holder 15 by the urging forces in two different directions, sufficient resistance to vibration and impact is improved.

Next, an operation for removing the battery 100 from the battery holder 15 will be described.
When removing the battery 100, the operator rotates the two battery lock operation knobs 24 in directions opposite to each other (in the direction of arrow C shown in FIG. 11). At this time, the lock portion 24 a of each battery lock operation knob 24 is detached from between the housing 11 and the battery holder 15. Therefore, since the battery lock member 23 can be removed from the battery holder 15, the battery 100 is also unlocked with respect to the battery holder 15.
Here, the battery lock member 23, the battery lock operation knob 24, the lock portion 24a, and the space between the housing 11 and the battery holder 15 constitute a lock mechanism and a lock release mechanism.

Thus, even if the battery 100 is firmly held in the battery holder 15, the lock can be easily released by simply moving the battery lock operation knob 24 by the operator.
On the other hand, since the operator needs to rotate the two left and right battery lock operation knobs 24 in different rotational directions in order to release the lock, unlocking that is not intended by the operator is prevented. Note that the operation of rotating the left and right battery lock operation knobs 24 is an operation performed in a state where the battery lock operation knobs 24 are fixed on the rotation axis of the battery lock operation knob 24, and thus is less than the slide operation described in the first embodiment. Prepared operations can be prevented.

  In the configuration of the present embodiment, depending on the position and size of the lid-shaped battery lock member 23, light outside the housing 11 may reach the X-ray sensor 12, and a normal image may not be acquired. Therefore, as in the X-ray imaging apparatus described with reference to FIG. 10, the drive control unit 13 operates the battery lock operation knob 24 at least during the period from when the X-ray sensor 12 starts to transition to the imaging enabled state until image acquisition is completed. You may comprise so that it may control with a control member. By restricting the operation of the battery lock operation knob 24, photographing can be performed without failure, and the need for re-photographing can be reduced.

(Third embodiment)
Next, an X-ray imaging apparatus 203 according to the third embodiment will be described with reference to FIGS.
FIG. 13 is a plan view showing the X-ray imaging apparatus before the battery is mounted on the battery holder. 14 is a cross-sectional view of the VV line shown in FIG. 13 as viewed from the direction of the arrow. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
The battery holder 15 of the present embodiment is provided with one battery lock member 25 as described in the first embodiment. The battery lock member 25 is provided at substantially the center in the width direction of the battery holder 15 (left-right direction shown in FIG. 13). The battery lock member 25 is configured to be movable a predetermined distance in the horizontal direction from the state shown in FIG. In addition, the battery lock member 25 of the present embodiment is provided with a battery lock operation knob 26 as an operation member that can be operated by an operator so as to be rotatable.

Specifically, the operation of rotating the battery lock operation knob 26 relative to the battery lock member 25 will be described with reference to FIG. FIGS. 15A and 15B are views showing the state before and after the battery lock operation knob 26 is rotated.
As shown in FIGS. 15A and 15B, the battery lock operation knob 26 is pivotally supported around the rotation axis R with respect to the battery lock member 25. In the state shown in FIG. 15A, the battery lock operation knob 26 does not protrude from the surface F of the housing 11. In this state, it is difficult for the operator to operate the battery lock operation knob 26 and slide the battery lock member 25.

On the other hand, as shown in FIG. 15B, when the battery lock operation knob 26 is rotated and stood up, a part of the battery lock operation knob 26 protrudes from the surface F of the housing 11. In this state, the operator can easily operate the battery lock operation knob 26 to slide the battery lock member 25.
Therefore, when the operator attaches or detaches the battery 100, the battery lock operation knob 26 is rotated from the state shown in FIG. 15A to the state shown in FIG. Enable slide operation. Further, when the operator does not need to attach or detach the battery 100, the battery lock operation knob 26 is moved from the state shown in FIG. 15B to the state shown in FIG. The surface F is not protruded.
Here, the battery lock member 25, the battery lock operation knob 26, and the lock digging portion 104 of the battery 100 described above constitute a lock mechanism and a lock release mechanism.

  Thus, in a normal use state where the battery 100 is not attached or detached, it is physically difficult for the operator to access the battery lock operation knob 26. Therefore, in order to release the lock of the battery 100, the operator needs to perform two operations of rotating the battery lock operation knob 26 so that the battery lock operation knob 26 stands up and moving in the horizontal direction. Unlocking can be prevented. In the present embodiment, a relatively simple configuration can be achieved as compared with the first and second embodiments.

  In addition, although this embodiment demonstrated only the case where the one battery lock member 25 was provided, it is not restricted to this case, You may provide the two or more battery lock members 25. FIG. In this case, each battery lock member 25 is preferably provided with a battery lock operation knob 26 that changes to an operable state and an inoperable state. By adding the battery lock member 25, the number of operations for releasing the lock of the battery 100 increases, so that inadvertent battery drop can be more reliably prevented.

  Also in the present embodiment, as in the X-ray imaging apparatus described with reference to FIG. 10, the drive control unit 13 is connected to the battery lock member when it is not desired to cut off the energization to the X-ray sensor 12, the drive control unit 13, and the memory 14. You may comprise so that 25 slides may be controlled by a control member. At this time, the regulating member may regulate the rotation operation of the battery lock operation knob 26.

  As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.

DESCRIPTION OF SYMBOLS 11: Housing | casing 12: X-ray sensor 13: Drive control part 14: Memory 15: Battery holder 16: Insertion guide 17: Holder side connection part 18: Battery lock member 19: Battery lock operation knob 20: Damper member 21: Pop-up Mechanism 22: Damper member 23: Battery lock member 24: Battery lock operation knob 25: Battery lock member 26: Battery lock operation knob 27: Restriction member 100: Battery 101: Battery terminal 102: Insertion guide 103: Receiving part 104: For locking Digging part 200, 201, 202, 203: X-ray imaging apparatus (electronic cassette)

An X-ray imaging apparatus according to the present invention includes an X-ray sensor that converts X-rays into an image signal , a housing having the X-ray sensor therein, and a short side that supplies electric power for driving the X-ray sensor. A rectangular parallelepiped battery having a long side, a battery holder formed on a surface opposite to the X-ray irradiation surface, and detachably holding the battery, and a lock mechanism for locking the battery in a state of being mounted on the battery holder And an unlocking mechanism that is disposed on the long side of the battery and that is unlocked by the locking mechanism, the X-ray imaging apparatus comprising: The release mechanism has a battery lock operation knob that can be rotated, and the battery lock operation knob does not protrude from the surface of the housing, so that the rotation of the battery is controlled by the rotation operation. It turns around the axis of the rotation axis parallel to the long side, and it changes to the form which protrudes from the surface of the case .

Claims (10)

An X-ray sensor that converts X-rays into image signals;
A battery for supplying electric power for driving the X-ray sensor;
A battery holder for detachably holding the battery;
A locking mechanism for locking the battery in a state of being mounted on the battery holder;
An X-ray imaging apparatus comprising: a lock release mechanism that releases the lock by the lock mechanism,
The X-ray imaging apparatus, wherein the lock release mechanism is unlocked by the lock mechanism by at least two operations by an operator.   The X-ray imaging apparatus according to claim 1, wherein the lock release mechanism includes at least two operation members that release the lock by the lock mechanism.   The X-ray imaging apparatus according to claim 2, wherein the two operation members are unlocked by the lock mechanism by operations in different directions.   The X-ray imaging apparatus according to claim 3, wherein the operation for releasing the lock by the lock mechanism is a slide operation or a rotation operation. The lock release mechanism has an operation member for releasing the lock by the lock mechanism,
2. The operation member according to claim 1, wherein the operation member can be operated in a direction in which the lock by the lock mechanism is released by an operation in a direction different from a direction in which the lock by the lock mechanism is released. X-ray imaging device. A housing for housing the X-ray sensor;
The X-ray imaging apparatus according to claim 5, wherein at least a part of the operation member protrudes from the surface of the housing by an operation in a direction different from a direction in which the lock by the lock mechanism is released. The operation in the direction in which the lock by the lock mechanism is released is a slide operation,
The X-ray imaging apparatus according to claim 5 or 6, wherein the operation in a direction different from a direction in which the lock by the lock mechanism is released is a rotation operation.   8. The battery holder according to claim 1, further comprising a damper member that is disposed in the vicinity of a connection portion that is electrically connected to the battery and that is compressed when the battery is mounted. The X-ray imaging apparatus according to any one of the above.   The X-ray imaging apparatus according to any one of claims 1 to 8, wherein the battery holder has a pop-up mechanism that urges the battery in a direction opposite to a direction in which the battery is mounted. .   The X-ray imaging apparatus according to any one of claims 1 to 9, further comprising a regulating member that regulates the operation of the unlocking mechanism according to a driving state of the X-ray imaging apparatus.

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