| 摘要 |
PURPOSE:To enable short, seizure-less and stable connection by providing a twisted groove at the rear end side of a square bar and forming a projection, for guiding the square bar through a twisted groove, on the internal surface of a short pipe circumscribed on the rear end side of the square bar. CONSTITUTION:When a main shaft square hole 2b in a boss 2a is butt-connected to the square bar 1d of a cable 1, the square bar 1d of the cable 1 is pressed by the main shaft square hole 2b and, since a compressive spring 3 is pressed into the inner side, baked into a short pipe 1c. Next, when a phase between the main shaft square hole 2b and the square bar 1d of the cable 1 is dislocated and dislocated and the hole 2b and the bar 1d are not engaged perfectly, a projection 1f formed on the short pipe 1c guides the square bar 1d so that it may be rotated and backed through a twisted groove 1c and, therefore, the phase between the square bar 1d and the square hole 2b coincides while the square bar 1d is rotated by 90 deg. max. and the square bar 1 is returned back again by the rotational force of the compressive spring 3 to engage perfectly with the square hole 2b. |
