초록 ▼

This weighing scale has a platform, a load cell supporting the platform and a base supporting the load cell. The load cell utilizes electrical strain gage elements, which are connected in an electrical circuit controlling an indicator. The scale is constructed to be unaffected by the eccentricity of

This weighing scale has a platform, a load cell supporting the platform and a base supporting the load cell. The load cell utilizes electrical strain gage elements, which are connected in an electrical circuit controlling an indicator. The scale is constructed to be unaffected by the eccentricity of the load on the platform. The scale is particularly suited for use in retail or other establishments, where loads are placed on the platform casually and rapidly, so that eccentric loading is common. The load cell comprises an integral block of material divided by milled apertures and recesses into two vertical members and three horizontal members connecting the vertical members. The platform is supported on one of the vertical members. The base is connected to the other vertical member. The upper and lower horizontal members carry most of the bending moments due to eccentric loads from one vertical member to the other. The middle horizontal member is constructed so that it carries most of the vertical component of the load. The strain gage elements are on this middle horizonal member and thus measure only the vertical load.

대표청구항 ▼

A weighing scale, comprising: a. a platform for receiving a load to be weighed; b. a load cell, comprising: 1. a frame including two horizontally spaced, elongated, vertically extending members and three elongated, vertically aligned, horizontally extending members connected at their ends to the ver

A weighing scale, comprising: a. a platform for receiving a load to be weighed; b. a load cell, comprising: 1. a frame including two horizontally spaced, elongated, vertically extending members and three elongated, vertically aligned, horizontally extending members connected at their ends to the vertically extending members; 2. each horizontally extending member having two horizontally spaced regions of reduced cross-section, the horizontal spacing between the center lines of the reduced cross-sectional regions of the upper and lower horizontally extending members being at least twice the horizontal spacing between the center lines of the redued cross-sectional regions of the middle horizontally extending member; c. strain gage resistance elements attached to the reduced cross-sectional regions of the middle one of the three horizontally extending members; d. means supporting said platform on the upper end of only one of the vertically extending members; and e. means supporting the lower end of only the other vertically extending member on the base; and f. means including said resistance elements for indicating the weight on said platform.