JPH0441872Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a radiation device, and more particularly to a radiation device having a gantry portion and a stand portion that rotatably supports the gantry portion.

BACKGROUND ART Conventionally, in this type of radiation apparatus, a gantry main body is comprised of a gantry part rotatably supported by a stand part, and a head part attached to the tip of this gantry part.

The joint between the gantry part and the head part is adjusted so that when the gantry main body part rotates, the head part rotates about the isocenter position.
In addition, this joint part was made by integrating the gantry part and the head part, and in order to prevent the joint part from shifting, it was fixed by pinning during the fitting work.

In such conventional radiation equipment, the gantry part and the head part, which make up the gantry main body part, were integrated and pinned together during assembly work.
The gantry body is heavy, making it difficult to handle during shipping and delivery, reducing work efficiency.
The disadvantage is that the assembly work is continuous and the production schedule becomes longer.

In addition, since the joint between the gantry and head is a joint construction, there is no compatibility with other equipment, and the joint is pinned, so the center of rotation of the head is shifted from the isocenter position. There is a drawback that readjustment is not possible if it is misaligned.

Purpose of the invention The present invention was made to eliminate the drawbacks of the conventional products as described above.It facilitates handling during shipping and delivery, improves work efficiency, and eliminates the need to prolong production schedules. An object of the present invention is to provide a radiation device that can be compatible with other devices and that can be easily readjusted even if the center of rotation of a head section is shifted from the isocenter position.

Composition of the Invention A radiation device according to the invention includes a gantry part and a stand part that rotatably supports the gantry part, and the gantry part is divided into a main body part and a boom part. The main body portion and the boom portion are fitted through a convex portion and a concave portion such that the rotation axis of the gantry portion and the central axis in the longitudinal direction of the boom portion are parallel to each other, and the rotation of the gantry portion is It is characterized in that a plurality of piece members are provided between the fitting surfaces of the convex portion and the concave portion in the moving direction.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a gantry section of an embodiment of the present invention. In the figure, the gantry part of one embodiment of the present invention is divided into a main body part (hereinafter referred to as gantry middle part) 1 and a boom part 3. The boom part 3 has a key part 5 of the boom part 3 (the key part 5 is parallel to the central axis 9 in the longitudinal direction of the boom part 3).
The key part 5 is inserted into the keyway part 4 of the gantry middle part 1 so that it is parallel to the central axis 8 of the bearing 2 of the gantry middle part 1 (rotation axis of the gantry part).

Further, between the key groove part 4 and the key part 5, there are four pieces 6 at both ends of the fitting surface between the key groove part 4 and the key part 5.
(two pieces on each fitting surface between the key groove part 4 and the key part 5 in the rotating direction of the gantry part) are inserted and fitted.

After the key groove portion 4, key portion 5, and block 6 are fitted together, the gantry middle portion 1 and the boom portion 3 are joined together using a fixing screw 7.

FIG. 2 is a side view of one embodiment of the present invention. In the figure, the gantry middle section 1 with the boom section 3 attached
is rotatably supported on the stand portion 10 by a bearing 2. Further, a head portion 11 is attached to the boom portion 3, and the head portion 11 is located at the isocenter position 1.
2 and irradiates the subject 13 with radiation.

In this way, the gantry section is divided into the gantry middle section 1 and the boom section 3, and the gantry middle section The key groove part 4 of the boom part 3 and the key part 5 of the boom part 3 are fitted together, and a plurality of pieces 6 are inserted between the fitting surfaces of the key groove part 4 and the key part 5 in the rotating direction of the gantry part. However, since the gantry middle section 1 and the boom section 3 can be shipped or carried in separately, handling at the time of shipping and carrying can be facilitated.

Furthermore, by dividing the gantry middle part 1 and the boom part 3, the gantry middle part 1 and the boom part 3 can be assembled separately, which improves work efficiency and eliminates the need for continuous assembly work. This makes it possible to eliminate long work schedules.

Furthermore, by dividing the gantry middle part 1 and the boom part 3, compatibility with other devices can be achieved, and between the key groove part 4 of the gantry middle part 1 and the key part 5 of the boom part 3, By inserting a metal plate into the head part 3, the head part 11 attached to the boom part 3 can be adjusted to rotate around the isocenter position 12.

In one embodiment of the present invention, the gantry middle part 1 side is made into a recessed part and the boom part 3 side is made into a convex part. It is clear that it has a function.

In addition, the piece 6 inserted between the key groove part 4 and the key part 5 increases the size of the device, so in order to make it easier to manufacture and handle, the key groove part 4 and the key part 5 are separated. It may be integrated with one of them, but is not limited to this.

Effects of the invention As explained above, according to the invention, the gantry section is divided into the invention and the boom section, and the rotation axis of the gantry section and the central axis in the longitudinal direction of the boom section are parallel to each other. In addition, the main body part and the boom part are fitted by a convex part and a concave part, and a plurality of frame members are provided between the fitting surfaces of the convex part and the concave part in the rotating direction of the gantry part. As a result, handling during shipping and delivery is facilitated, work efficiency is improved, and production schedules can be avoided. Further, it is possible to provide compatibility with other devices, and even if the center of rotation of the head section deviates from the isocenter position, it can be easily readjusted.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a gantry portion of an embodiment of the present invention, and FIG. 2 is a side view of an embodiment of the present invention. Explanation of symbols of main parts, 1...Middle part of gantry,
3...boom part, 4...key groove part, 5...key part, 6...piece.

Claims (1)

[Scope of utility model registration request] The radiation apparatus includes a gantry part and a stand part that rotatably supports the gantry part, the gantry part being divided into a main body part and a boom part, and the rotation axis of the gantry part and the stand part rotatably supporting the gantry part. so that the center axis in the longitudinal direction of the boom section is parallel to the
The main body portion and the boom portion are fitted by a convex portion and a concave portion, and a plurality of frame members are provided between the fitting surfaces of the convex portion and the concave portion in the rotation direction of the gantry portion. Characteristic radiation equipment.