| 摘要 |
<p>The two cables can be adjusted in the same or opposite directions and the mirror moves about axes at right angles to each other. A ball joint operable by a control lever has a ball connected to the lever and by an arm to a cross bar. The arm (6) which extends at right angles to the control lever (5) can be moved in a guide by swivelling the lever so that the cross bar (12) is moved to produce common movement of the two cables (13,14). When the control lever is swivelled another way the arm is rotated about its longitudinal axis and thus the cross bar swivels to move the cables in the opposite direction. The cross bar can be mounted at the lower end of the arm to form an angle of 90 degrees with same.</p> |
