| 摘要 |
<p num="1">Methods and apparatus may permit a ball and socket coupling arrangement. A rotary interference member (2) and a rotary socket member (8) may be displaced from a hitch ball interference position (6) and a hitch ball socket position (11), respectively, to a hitch ball clearance position (7) by a hitch ball (17) moving through a trailer coupling path (27). A hitch ball socket (15) may be formed in part by a socket engagement surface (9) of a rotary socket member (8). A hitch ball guidance cone (21) may guide the hitch ball (17) through the trailer coupling path (27). A control rod (34) may be used to displace the rotary interference member (2) and the rotary socket member (8) from a hitch ball interference position (6) and a hitch ball socket position (11), respectively, to a hitch ball clearance position (7).
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