Patent ID: 6877611

Claim:
In a weight selecting apparatus comprising: a feed unit for continuously feeding objects to be inspected; a weighing unit for measuring weights of the objects; a carrying means for carrying the objects fed from said feed unit to said weighing unit one by one; an acceptability determining unit for comparing the result of weight measurement by said weighing unit with a specific reference value to determine the acceptability of each of the objects; and a selecting means for selecting the objects into non-defective ones each having a weight being within a specific weight range and defective ones each having a weight being out of the specific weight range on the basis of the determined results by said acceptability determining unit; wherein the objects continuously fed from said feed unit are carried to said weighing unit one by one by means of said carrying means and subjected to weight measurement by said weighing unit, being subjected to acceptability determination on the basis of the measured results by said acceptability determining unit, and are selected into non-defective ones and defective ones on the basis of the determined results by said selecting means and are recovered; the improvement wherein said carrying means includes at least one intermittently rotatable carrying roller having in its outer peripheral surface portion a plurality of carrying pockets for containing the objects, wherein the objects are contained in said carrying pockets on a one-to-one basis and carried by intermittent rotation of said carrying roller; each of the objects is placed on a weighing base of said weighing unit at the lowermost point of said carrying roller in a state being contained in the corresponding one of said carrying pockets, being subjected to weight measurement in a period in which the carrying roller is left as intermittently stopped, and is moved from said weighing base by intermittent rotation of said carrying roller; and the object thus measured in weight is ejected from said carrying pocket and is transferred to said selecting means.