Two stage overload protection device for a weighing hopper

摘要

A weighing device is equipped with a first overload protection mechanism and a second overload protection mechanism. The first overload protection mechanism includes a first support portion disposed on a fixing member and a first section disposed on a connecting member. The second overload protection mechanism includes a second support portion disposed on the fixing member and a second section disposed on the connecting member. When a first load acts on a weigh hopper, the first support portion supports the first section from below. When a second load greater than the first load acts on the weigh hopper, the second support portion supports the second section from above at the same time that the first support portion supports the first section.

主权项

1. A weighing device using a load cell, the weighing device comprising:
a fixing member having a load cell support portion a load cell having a first end and a second end spaced apart from the first end, the first end being fixedly attached to the load cell support portion of the fixing member; a connecting member having a first portion and a second portion, the first portion being fixedly attached to the second end of the load cell; a weigh hopper fixedly attached to the second portion of the connecting member and being configured to receive an object or objects to be weighed; and an overload protection mechanism having a first support portion and a second support portion that are disposed on the fixing member protecting the load cell from an overload configured such that when a first load acts on the load cell, the first support portion supports from below at least one of the load cell and the connecting member, and when a second load greater than the first load acts on the load cell, at the same time that the first support portion supports from below at least one of the load cell and the connecting member, the second support portion additionally supports from above at least one of the connecting member and the load cell in the opposite side to the weigh hopper across the first support portion.