JPH02159258A - Running apparatus of truck in x-ray imaging apparatus - Google Patents

Abstract

PURPOSE:To manually retract an X-ray tube or an X-ray treatment part by bringing a transfer apparatus to a free state by interposing a clutch between a drive source and the transfer apparatus and providing a clutch switch operating the disconnection of the clutch in the vicinity of the X-ray tube or the X-ray treatment part. CONSTITUTION:An object to be examined such as a racing horse is arranged at an examination position and the first X-ray tube 11 or the second X-ray tube 21 is arranged at an appropriate position in the vicinity of the object to be examined by operating guide rails 13, 23, trucks 15, 25 and a boom 16 corresponding to a place to be examined. X-rays are emitted from the first X-ray tube 11 or the second X-ray tube 21 and transmit through the object to be examined to be received by an X-ray treatment part 31 to perform X-ray imaging. When a racing horse lashes out suddenly during imaging, a clutch switch 71 is operated to release an electromagnetic clutch 70 and the connection of a transfer apparatus 50 and a drive source 60 is cut off. The screw shaft 51 of the transfer apparatus 50 becomes a state possible to race and the truck 15 becomes manually movable. When the boom 16 is grasped to apply force in the direction of a guide rail 13, the boom 16 moves along the truck 15 to rapidly retract the boom 16 and the X-ray tube 11.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a traveling device for a trolley in which an X-ray tube or an X-ray processing unit is suspended in an X-ray imaging apparatus, and in particular,
It is used as an X-ray imaging device to examine the health condition of animals such as racehorses.

(Prior Art) Conventionally, as a cart traveling device in this type of xvA side imaging device, a cart is movably disposed along a rail laid on the ceiling, and an X-ray tube or the X-ray tube is connected to the cart. An X-ray processing unit that receives the X-rays irradiated from the tube was suspended, and the cart was configured to be movable by an appropriate transfer device connected to a drive source. And at the time of closeness,
The transfer device is operated by driving the drive source, thereby causing the cart to travel and placing the X-ray tube and the X-ray processing section at appropriate positions near the object to be inspected, such as a racehorse.

(Problem to be Solved by the Invention) However, if a racehorse or the like to be inspected becomes violent during imaging, conventional X-ray imaging equipment stops the drive source in an emergency and shuts down the X-ray tube and X-ray processing unit. This only stops the movement of the horse, so if a racehorse or the like goes wild, the X-ray tube or
′! There was a risk that the IA processing section would be damaged. Also, X
There was a problem in that not only the X-ray imaging device but also the racehorses were injured.

(Means for Solving the Problems) The trolley traveling device in the xvAti shadow device of the present invention is as follows:
A cart is movably provided along a rail laid on the ceiling, an X-ray tube or an X-ray processing unit is suspended from the cart, and the cart is moved along the rail by a transfer device connected to a drive source. The device is configured to be freely transferable, and a clutch is interposed between the drive source and the transfer device, and a clutch switch for operating the clutch to connect/disconnect is provided near the X-ray tube or the X-ray processing unit. It is.

(Function) If the object to be inspected, such as a racehorse, starts to move violently during X-ray imaging, operating the clutch switch to disengage the clutch will cut off the connection between the transfer device and the drive source, and the transfer device will be turned off. Make it free and manually evacuate the X-ray tube or X-ray processing section.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

The present embodiment will be described using an example of an X-ray imaging apparatus that performs X-ray imaging of racehorses.

FIG. 1 shows the overall configuration of this X-ray imaging apparatus.

The X-ray imaging device is installed on the ceiling and has a first X'IIA tube 11.
A first unif l-A having a
It consists of a third unit C having a radiation processing section 31 and a second unit B having a second X-ray tube 21 disposed on the floor.

The first Unisol I-A includes a pair of guide rails 12 laid across the ceiling in an appropriate direction, and is disposed below the guide rails 12 in a direction perpendicular to the guide rails 12,
A pair of guide rails 13 that are movable along the guide rails 12, a truck 15 that is movably arranged along the guide rails 13, a boom 16 that is provided at the bottom of the truck 15 and is vertically extendable and retractable, and a boom. 16 and a first X-ray tube 11 provided at the tip of the X-ray tube 11.

The guide rail 13 is movable along the guide rail 12 by a suitable moving device including a motor or the like. Further, the trolley 15 is made to be able to run freely along the guide rail 13 by a traveling device equipped with a motor etc. which will be described later.

The boom 16 is, for example, a conventionally known multi-stage boom, and is extendable and retractable by an appropriate drive device. A holding part 17 is provided at the tip of the boom 16, and the first X-ray tube is held in the holding part 17 so as to be rotatable in the horizontal direction and the vertical direction. The first X-ray tube 11 is for irradiating an object to be inspected with X-rays, and is configured to be movable three-dimensionally by the movement of a guide rail 13 and a truck 15, and by the extension and contraction movement of a boom 16.

The second unit B includes a pair of guide rails 22 laid in a recess formed in a part of the floor in the same direction as the guide rails 12 on the ceiling, and a pair of guide rails 22 placed above the guide rails 22 orthogonal to the guide rails 22. a guide rail 23 that is disposed in a direction (same direction as the guide rail 13 on the ceiling) and is movable along the guide rail 22;
The X-ray tube 25 is composed of a truck 25 that is movably arranged along the upper surface of the truck 25, and a second X-ray tube 21 that is provided on the upper surface of the truck 25.

The guide rail 23 is movable along the guide rail 22 by a suitable moving device including a motor or the like. Further, the trolley 25 is movable along the guide rail 23 by a traveling device equipped with a motor or the like.

A second X-ray tube holding section 26 is placed on this cart 25,
The second X-ray tube 21 is held in the second X-ray tube holding portion 26 so as to be rotatable around the X-axis and the Y-axis. This second X
The wire tube 21 is rotatable by a drive device such as a motor.

The third unit C includes a pair of guide rails 32 laid on the ceiling in the same direction as the guide rails 12, and a direction perpendicular to the guide rails 32 below the guide rails 32 (in the same direction as the guide rails 13). A guide rail 33 disposed on the platform and movable along the guide rail 32, a truck 35 disposed movably along the guide rail 33, and a boom provided at the bottom of the truck 35 that is vertically extendable and retractable. 36, and an X-ray processing section 31 provided at the tip of the boom 36.

The guide rail 32, guide rail 33, truck 35, and boom 36 are constructed similarly to those of the first unit A.

A holding part 37 is provided at the tip of the boom 36 so as to be rotatable in the horizontal direction, and the X-ray processing part 31 is held in the holding part 37 so as to be rotatable in the vertical and horizontal directions. A cassette film for x'4a imaging is stored in the X-ray processing section 31 in a manner that can be taken out and put in freely.
This film receives the X-rays irradiated from the ray tube 21, thereby exposing the film to light.

Next, the cart 15 and the cart 25 are moved to the guide rail 13.
A traveling device for traveling along the guide rail 23 will be explained.

As shown in FIG. 2, this traveling device is composed of a transfer device 50, a motor 60 as a drive source, and an electromagnetic clutch 70 interposed between the transfer device 50 and the drive source 60. .

The transfer device 50 includes a guide rail 13 (guide rail 33
), and a female screw member 55, such as a NAND screw, which is screwed together with the screw 51 and fixed to the cart 15 (cart 35). The electromagnetic clutch 70 is provided at one end of the screw shaft 51, and this electromagnetic clutch 7
The motor 60 is connected to the motor 0 via a power transmission means 80 such as a pulley or a timing head. The electromagnetic clutch 70 is configured to be connectable and disconnectable by operating a clutch switch 71 (see FIG. 1), which will be described later. By disconnecting the electromagnetic clutch 70, the connection between the motor 60 and the screw shaft 51 can be severed. can. Therefore, when the electromagnetic clutch 70 is in the engaged state, by driving the motor 60 to rotate in the forward and reverse directions, the screw shaft 51 similarly rotates in the forward and reverse directions, thereby causing the cart 15 to move along the guide rail 13. become.

Further, when the electromagnetic clutch 70 is in the disengaged state, the screw shaft 51
becomes able to rotate idly, and the trolley 15 becomes manually forcibly movable.

As shown in FIG. 1, the clutch switch 71 is provided, for example, at the tip of the boom 16 near the X-ray tube 11 or at the tip of the boom 36 near the X-ray processing section 31, respectively.

Next, the use of the X-ray imaging apparatus configured as described above will be explained.

First, after placing an object to be inspected such as a racehorse at an inspection position, the first X-ray tube 11 and the second X-ray tube 21 are selected according to the inspection location, and the first X-ray tube 11 or the second X-ray tube 21 is The first X-ray tube 11 or the second 2. An X-ray processing section 31 is arranged at a position facing the X-ray tube 21 and the object to be inspected. And the 1st X
X-rays are irradiated from the ray tube 11 or the second X-ray tube 21.

The irradiated X-rays pass through the object to be inspected and are received by the X-ray processing section 31, and X-ray photography is performed by exposing the film of the X-ray processing section 31 to light.

In this way, between the first X-ray tube 11 and the second X-ray tube 21,
By selecting and arranging one of them that is suitable for the imaging location of the object to be inspected and performing X-ray photography, it is possible to easily image all of the inspection locations even for a large object to be inspected such as a racehorse.

Here, when the object to be inspected, such as a racehorse, suddenly starts to move wildly during photography, the inspector operates the clutch switch 71 to disconnect the electromagnetic clutch 70 and disconnect the transfer device 50 and the drive source 60. As a result, the screw shaft 51 of the transfer device 50 becomes free to rotate, and the cart 15 becomes movable manually. As a result, by grasping the boom 16 and applying force to the boom 16 in the direction in which the guide rail 13 extends, the boom 16 moves along the guide rail 13 together with the cart 15, and the boom 16 and the X-ray tube 11 are moved to an appropriate position. It can be evacuated quickly.

Note that the traveling device described above can also be used as a moving device that moves the guide rail 13 and the guide rail 23 along the guide rail 12 and the guide rail 22. This widens the range in which the boom 16 and the X-ray tube 11 can be manually retracted.

(Effects of the Invention) As described above, according to the present invention, the cart can be moved manually by disengaging the clutch, so when the object to be inspected starts to move loosely during an inspection, it can be suspended and placed on the cart. The X-ray tube and the X-ray processing section can be quickly evacuated, preventing damage to the equipment such as the X-ray tube and the X-ray processing section, and also preventing injury to the inspected object due to this. be able to.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic structure of an xmti shadow device according to the present invention, and FIG. 2 is a plan view showing a schematic structure of a traveling device.

Claims (1)

[Claims] 1) A cart is provided movably along a rail laid on the ceiling, an X-ray tube or an X-ray processing unit is suspended from the cart, and the cart is moved by a transfer device connected to a drive source. It is configured so that it can be freely transported along the rail, while
A clutch is interposed between the drive source and the transfer device,
The clutch switch that operates the connection/disconnection of the clutch is the
A traveling device for a cart in an X-ray imaging apparatus, characterized in that it is provided near a ray tube or an X-ray processing section.