| 摘要 |
<p>The weight of an elevator car (2) is obtained in a manner which is minimally dependent on the distribution of the load within the cab by means of a load cell (18) and load support (20) sandwiched between a first and second plate (15,22), the load being shared between the load cell (18) and load support (20). Threaded rods (5) pass through the first and second plates (15,22), as well as through a space between the first and second plates (15,22), and further pass through hitch springs (14) and support the car (2). The upper ends of the rods (5) are connected to the hoist ropes (9). The load weighing apparatus further includes a pair of rod positioners (26) which keep constant the lateral displacement of the rods (5) one from another. The load cell (18) and load support (20) are not enclosed by the rods, yielding the further advantage that a mechanic has easy access to the load cell for its maintenance.</p> |
