| 摘要 |
A portable weight measuring device including a plurality of flat, flexible generally nonelastic fluid-containing bladders arranged edge to edge and interconnected by flexible tubes for fluid flow between the bladders. Flat, rigid upper and lower support plates, generally similar in size to each bladder, are positioned against each bladder upper and lower surface so that the upper support plates collectively define a flat weight bearing surface and the lower support plates collectively define a flat ground engaging surface which is parallel and spaced from, but on close proximity to, the weight bearing surface by the relatively small thickness of the bladders. A pressure sensing and converting unit is in fluid communication with a closed fluid circuit defined by the bladders and interconnecting tubes; the pressure sensing and converting unit producing an electrical signal output proportional to the weight of an object placed atop the device to a visual readout means which provides viewable indicia of the weight of the object. An upper and lower flexible protective cover sheet surrounds this arrangement, sealed closed along their mating margins, the upper cover sheet having a viewing aperture formed therethrough in alignment and registry with the visual readout means. By selective arranging and spacing of the bladders, the device is made foldable into a compact stored configuration.
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