| 摘要 |
<p>The equipment temporarily stores stacked in layers inside a closed chamber, having a casing open at the top and with a support plate for the items movable up and down inside it. The plate works with a spring balance so that the topmost layer is always near the open top. The spring balance (5) has an adjustment matching it to the weight of the items (3), while keeping the range of movement of the plate constant. It can have a rotary ball (8) coupled to a spring (9) and via a strip to the support plate, so that movement of the ball is transmitted to the support plate.</p> |
