Patent ID: 11965770
Assignee: PONSSE OYJ
Field: Measurement (Instruments)
Classification: CPC E  G  A  B | IPC A  B  G

Claim 11:
12. A forest machine comprising a set of hoisting booms, a rotation device suspended from an end of the set of hoisting booms, an implement suspended from the rotation device to hoist a bundle, as well as the scale of claim 1 to weigh the bundle, said scale comprising:
a first part for suspending the scale from the rotation device supporting the scale;
a second part for suspending the implement from the scale;
a third part joining the first part and second part, arranged to deflect from effect of the implement acting on the first part and the second part and caused by the bundle to be hoisted by the implement, wherein the first part, the second part, and the third part are at least partly radially nesting relative to one another;
at least two strain gauges connected to the third part to form measurement data on the deflections of the third part;
a wireless transmitter for sending the measurement data to an operator;
a self-powered power supply for feeding an electric current to the strain gauges and to the wireless transmitter;
a first space formed in the scale to integrate the wireless transmitter inside the scale; and
a second space to integrate the power supply inside the scale.