| 摘要 |
It has a round plate (2, 22) provided with a rotation recovery mechanism (4, 28), with a shaft (3, 26), connectable to bolting means and to a handle (1, 14) whose operation causes the rotation of the shaft (3, 26). The handle (1, 14) is a part independent from the round plate (2, 22) provided with a housing (12, 31) that receives a projection (5, 13) of the round plate (2, 22). This projection (5, 23) is integral to the rotation recovery mechanism (4, 28) and the cited projection (5, 23) has a cavity (13, 32) wherein the cited shaft (3, 26) is housed. Fastening means are included between said projection, shaft (3, 26) and handle (1, 14).
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