| 摘要 |
For adding a retro-fit load-measuring system to a walkie-type pallet truck etc, the low-profile load cell is formed with a chunky inner-boss and outer-ring. A thin annular disc, to which strain-gauges are cemented, extends between the two. The load-cell is installed in a fork of the truck, the outer-ring engaging a hole in the fork. The fork-cover engages the inner-boss of the load-cell, and is attached thereto with some free play. |
| 主权项 |
1. Load-cell for signaling the magnitude of a force,
wherein: the load-cell includes a saucer; the saucer includes a chunky outer-ring; the saucer includes a thin disc, which extends radially inwards from the outer-ring; the arrangement of the load-cell is such that when an axial load is applied to the disc, the load-cell being supported at its outer-ring, the disc deflects in a conical deflection mode; the disc has an oversurface and an undersurface; the outer-ring projects axially, beyond the undersurface of the disc, whereby the saucer defines and includes an annular recess under the disc, inside the outer-ring, termed the gauge-recess; the load-cell includes a plurality of strain-gauges; the strain-gauges are located on the undersurface of the disc, and within the gauge-recess; the strain-gauges are secured to the undersurface of the disc in such manner as to sense strains induced in the disc due to conical deflection of the disc; the load-cell includes a conductor, for conducting signals indicating the sensed strains to a receiver; the load-cell includes a fixing-flange, which extends radially outwards from the outer-ring. |
