| 摘要 |
PURPOSE:To hold and run a body in the center of a tube so that the axis of the tube and the axis of the body are aligned with each other by coupling coils annularly and constituting an annular body, providing a support ring in the annular body, and fitting the body to the support ring. CONSTITUTION:The passage of the tube 1 consists of straight tubes 3 and 4, socket joints 5 and 6, etc. A television camera 2 has a camera body 8, an image forming lens 9, and a lamp 10. The lamp 10 lights the inside of the tube 1 and its internal image is picked up by the main body 8 through the lens 9 and displayed by a display means. Further, a flexible tube 11 is connected to one lengthwise end part of the camera 2 and a coiled guide member 13 is fixed to the other end part. A holding device 14 is fixed axially to the tube 11 and member 13 and the device 14 includes a fitting member 15 and the annular body 20 constituted by coupling coil element wires annularly. The member 15 has the annular holding ring 17, a fitting cylinder 16, and plural coupling rods 18 which couples the ring 17 with the fitting cylinder 16. Then, the fitting cylinder 16 is fixed while fitted around the member 13 or tube 11.
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