US 11,965,770 B2
Suspendable scale for weighing a bundle and a forest machine
Marko Halonen, Vierema (FI); Taneli Heikkila, Vierema (FI); Arto Kaurala, Vierema (FI); Aleksi Kivi, Vierema (FI); Toni Kohio, Vierema (FI); Jari Korhonen, Vierema (FI); Vesa Kumara, Vierema (FI); Janne Laukkanen, Vierema (FI); Jami Leivo, Vierema (FI); Erkki Nivalainen, Vierema (FI); Jukka Ohtonen, Vierema (FI); Jouni Suutari, Vierema (FI); Heikki Vaisanen, Vierema (FI); and Mika Vayrynen, Vierema (FI)
Assigned to PONSSE OYJ, Vieremä (FI)
Appl. No. 17/614,762
Filed by Ponsse Oyj, Vierema (FI)
PCT Filed May 29, 2020, PCT No. PCT/FI2020/050362
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2020/240093, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 20195450 (FI), filed on May 29, 2019.
Prior Publication US 2022/0228905 A1, Jul. 21, 2022
Int. Cl. G01G 19/18 (2006.01); A01G 23/00 (2006.01); B60P 1/54 (2006.01); B66C 13/16 (2006.01); G01G 19/12 (2006.01); G01G 23/37 (2006.01); B60P 3/41 (2006.01)
CPC G01G 19/18 (2013.01) [A01G 23/003 (2013.01); B60P 1/5433 (2013.01); B66C 13/16 (2013.01); G01G 19/12 (2013.01); G01G 23/3735 (2013.01); B60P 3/41 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A suspendable scale for weighing a bundle, comprising:
a first part for suspending the scale from a structure supporting the scale;
a second part for suspending an implement from the scale;
a third part joining the first part and second part, arranged to change shape from an effect of the implement acting on the first part and second part and caused by a bundle to be hoisted by the implement, the first part, second part, and third part being at least partly radially nesting relative to one another, wherein the third part is, in a direction perpendicular to a plane of the scale, at least partly thinner in thickness than the first part and second part, and the third part includes two annular grooves at a distance from each other radially, to increase deflection of the third part;
at least two strain gauges connected to the third part to form measurement data on forces acting on each strain gauge, on basis of deformation 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 the wireless transmitter;
a first space is formed in the scale to integrate the wireless transmitter inside the scale and
a second space to integrate the self-powered power supply inside the scale.