Fujifilm Corporation

Koichi Eguchi

Takeyasu Kobayashi

Yusuke Kitagawa

Ryo Imamura

Masahito Sanbuichi

A radiography apparatus includes: an irradiation unit that emits radiation; an arm that holds the irradiation unit and an image receiving unit in a facing posture such that the image receiving unit is attachable and detachable; a connection portion or a main body portion that rotatably supports the arm; a first locking mechanism and a second locking mechanism that lock a rotation of the arm with respect to the connection portion or the main body portion; a photo sensor that detects whether or not the image receiving unit is detached from the arm; and a control unit that performs control not to release the lock even in a case in which an unlock operation for releasing the lock of the rotation by the first locking mechanism and the second locking mechanism is performed in a state in which the image receiving unit is detached from the arm.

Radiography apparatus and method for controlling radiography apparatus

A radiography apparatus includes: an irradiator that emits radiation; a carriage portion on which the irradiator is mounted and which is capable of traveling; steering casters which are provided in the carriage portion and are connected to a steering and whose steering angle is given by an operation of the steering; free casters which are provided in the carriage portion and are not connected to the steering and whose steering angle is changed subordinately according to a direction of force applied to the carriage portion; and a switching mechanism that selectively switches between a first grounded state in which the free casters are separated from a floor and the steering casters are grounded to the floor and a second grounded state in which the free casters are grounded to the floor and the steering casters are separated from the floor.

Mobile radiography apparatus

A radiography apparatus includes: an arm that has a first end portion and a second end portion, one of which an irradiator is provided in and the other of which an image receiver is attachable to; a support portion that supports the arm to be orbitally rotatable; a cable that is provided from the first end portion of the arm to the support portion; a belt that is provided from the second end portion of the arm to the support portion; a first reel that winds the cable; a second reel that is provided to be independently rotatable with respect to the first reel and winds the belt; and a spring that biases the first reel in a winding direction of the cable, biases the second reel in a winding direction of the belt, and allows the occurrence of a difference between an amount of rotation of the first reel and an amount of rotation of the second reel.

Radiography apparatus

A radiography apparatus includes: an irradiation unit that emits radiation; an arm that can hold the irradiation unit and an image receiving unit in a facing posture; a first rotation mechanism that rotates the arm; and a friction mechanism that is switchable between a first state in which a frictional force is applied to the arm in a direction opposite to a direction in which the arm is rotated and a second state in which the frictional force applied to the arm is less than that in the first state.

A radiography apparatus includes: an irradiation unit that emits radiation; an arm that can hold the irradiation unit and an image receiving unit in a facing posture; a connection portion or a main body that supports the arm; a rotation mechanism that rotates the arm with respect to the connection portion or the main body; and an operation handle that is provided independently of the arm and is manually operated to input an operation force for displacing the arm to the rotation mechanism.

A mobile radiation generator includes an arm part on which an irradiation section is mounted. The height of the irradiation section is changed in a case in which the arm part is rotated. A spring generates negative rotational moment in a negative direction where the irradiation section is displaced upward against positive rotational moment that acts on the arm part in a positive direction due to own weight of the irradiation section and the like. A friction mechanism is built in a pillar. In a case in which the magnitude of the positive rotational moment and the magnitude of the negative rotational moment are different from each other, the friction mechanism generates a frictional force acting in a direction opposite to a direction where the arm part is to be rotated due to a difference between the positive rotational moment and the negative rotational moment and cancelling the difference.

Mobile radiation generator

Provided is a radiation irradiation device that can restrict movement of an arm part during device movement without providing a mechanism that becomes a user's obstacle. The radiation irradiation device includes a radiation generation unit that generates radiation; an arm part having one end to which the radiation generation unit is attached; a support member having one end to which the other end of the arm part is connected so as to be rotationally movable; a body part to which the other end of the support member is connected; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and an arm locking part that restricts the rotational movement of the arm part. The arm locking part is provided inside the arm part.

Radiation irradiation device

A portable radiographic image capturing apparatus includes a radiation conversion panel configured to output image information on the basis of applied radiation, a casing housing the radiation conversion panel therein, and a plurality of support members on which the radiation conversion panel is supported in the casing. The support members have slot structures housing wires therein.

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Kanagawa, Japan

Koichi Eguchi