| 摘要 |
PURPOSE: To see that a supporting arm has high flexural strength and torsional strength in a simple geometrical form and that cables, cable strands, or bodies similar to them can be attached simply and separately from one another within an inner chamber. CONSTITUTION: Within a device passage, a plurality of screw passages 30 extending in the longitudinal direction of molding material protuberantly inwards are made to that end, and the wall part of the molding material is made of two sidewalls 20 arranged in parallel apart from each other, and the sidewalls 20 are coupled with each other in an elliptic form by semicircular coupling parts 40 at the end, and the screw passage 30 divides the device passage into chambers A, B, and C spatially connected with one another. |
