| 摘要 |
The safety device according to the invention for operator protection in elevators with a low-height shaft bottom ( 5 ), is characterized in that it uses a brace ( 1 ) hinged on abase plate ( 3 ) secured to the bottom of the shaft ( 5 ) and arranged when folded in the horizontal position at a reduced height above the shaft bottom ( 5 ) in normal elevator operation, and a buffer element ( 9 ) secured underneath the car ( 11 ) and adapted to come into contact with a horizontal side surface of the brace ( 1 ) in its folded position, wherein said brace ( 1 ) is adapted to be moved by an appropriate lifting device ( 31 ) to a vertical lifted position in which the buffer element ( 9 ) can come into contact with an upper surface ( 15 ) of the brace ( 1 ), in a condition where the operator can work in the shaft bottom ( 5 ), wherein the length of the 15 brace added ( 1 ) to the thickness of the buffer element ( 9 ) provides for a sufficient depth between the underside of the car ( 11 ) and the shaft bottom ( 5 ) to suppress any risk for the operator to be crushed in the shaft bottom ( 5 ).
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