公开(公告)号：US4067408A

公开(公告)日：1978-01-10

申请号：US745421

申请日：1976-11-26

申请人： Ralph Lee Dodds ,  Leland William Green ,  Knight Llewellyn Harris

发明人： Ralph Lee Dodds ,  Leland William Green ,  Knight Llewellyn Harris

IPC分类号： G01G1/38 ,  G01G7/06 ,  G01G21/23 ,  G01G23/24 ,  G01G23/37 ,  G01G3/14 ,  G01G1/18 ,  G01G21/24

CPC分类号： G01G23/37 ,  G01G1/38 ,  G01G21/23 ,  G01G23/24 ,  G01G7/06 ,  Y10S177/09

摘要： A balance mechanism for automatically lifting known weights in a single-arm balance comprised of two plates, a first plate supporting the known weights and a pan for an unknown mass to be weighed and a second counterbalancing plate coupled to the first through a box lever having diagonal corners connected to a support member through flexible elements that will permit the box lever to pivot about a diagonal axis in response to a vertical force at one free corner connected to a corner of one balance plate or in response to a vertical force at the other free corner connected to a corner of the other balance plate. One balance plate is secured in space by two taut rectangular loop lines, one line being connected taut to diagonally opposite corners of the plate and to elements affixed to the support member in a position over the free corners of the plate, and the other line being connected taut to the free corners of the plate and to elements affixed to the support member in a position over the other two corners. The other balance plate is secured in space parallel to the first plate in the same manner as the first plate by two taut rectangular loop lines, but relative to the first plate as the support member and oriented 90.degree. from the first plate about an axis normal to the plates. Any force on one plate is coupled to the other plate by the box lever to cause the plates to move in opposite directions while the two pairs of taut lines maintain the plates substantially parallel regardless of whether or not the plates are horizontal or the force is normal to the plates.

摘要翻译： 一种用于在单臂平衡中自动提升已知重量的平衡机构，包括两个板，支撑已知重量的第一板和待称重的未知质量的盘;以及耦合到第一通过箱杠杆的第二平衡板， 对角线通过柔性元件连接到支撑构件，该元件将允许箱形杠杆响应于连接到一个平衡板的角部的一个自由角落处的垂直力或者响应于另一个的平衡板处的垂直力而绕着对角线轴线枢转 自由角连接到另一个平衡板的角落。 一个平衡板通过两个拉紧的矩形环线固定在空间中，一条线连接到板的对角相对的角部，并且在板的自由角上的位置上固定到支撑构件上的元件，另一条线 连接到板的自由角和固定到支撑构件上的元件在另一个两个角上的位置。 另一个平衡板以与第一板相同的方式以与第一板相同的方式固定在与第一板相同的方式上，通过两个拉紧的矩形环线，但是相对于作为支撑构件的第一板，并且相对于第一板绕轴正交定向90° 到盘子 一个板上的任何力通过箱形杆联接到另一个板上，以使板沿相反方向移动，而两对拉紧线保持板基本上平行，而不管板是水平还是力是正常的 到盘子