| 主权项 |
1. A weighing module for weighing a load applied to an object, the weighing module including:
at least one first mounting and at least one second mounting being attachable to a primary part of the object such that the first and the second mountings are spaced apart from one another; at least one third mounting and at least one fourth mounting being attachable to a secondary part of the object such that the third and the fourth mountings are spaced apart from one another; at least a first bar member having a first end for pivotally mounting to the first mounting and an opposing second end for pivotally mounting to the third mounting; at least a second bar member having a first end for pivotally mounting to the second mounting and an opposing second end for pivotally mounting to the fourth mounting, each end of the bar members being pivotally mounted on the mounting by a mounting pin passing through correspondingly aligned mounting apertures defined in the respective end of the bar members and the respective mounting so as to retain the first bar and the second bar in a spaced apart and parallel orientation relative to one another; and one or more load cells attachable between the one or more mountings attachable to the primary part of the object and the one or more mountings attachable to the secondary part of the object such that in use and under load, the bar members and mountings co-operate with one another to substantially nullify any force component acting in a plane coplanar or substantially parallel to a plane in which the bar members lie, thereby to enable the load cell to measure substantially only a strain caused by the weight of the load on the object. |
