Shear beam load cell
First Claim
1. Apparatus comprising a carrier for receiving a load thereon, a load cell operative to sense forces applied thereto in a load-measuring direction, said load cell comprising a beam and shear-sensing transducer means carried by said beam, means for retaining said carrier in place relative to said load-sensing means and for applying at least a portion of a load supported by the carrier to said load cell in said load-measuring direction upon positioning of the load on said carrier, said last mentioned means comprising a carrier support member connected to said carrier and adapted to limit relative movement therebetween in directions transverse to said load measuring direction, means defining a radially oriented recess in said beam, said radially oriented recess including an inward end surface defining a load receiving surface, said carrier support member extending into said radially oriented recess and being effective to transmit a force proportional to at least a portion of said load to said load receiving surface in the load measuring direction, said radially oriented recess defining means for resisting relative movement of said carrier support member in directions transverse to said load measuring direction.
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Accused Products
Abstract
A load cell for use with a carrier which receives a load to be weighed. The carrier applies a force to a beam of the load cell along a load-measuring direction and the beam includes electronic transducer means for sensing such force. The beam is provided with a recess which extends in the load-measuring direction. The recess is for receiving a load carrier support means and holds the carrier in place so that the force due to the load is directed in the load-measuring direction.
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Citations
17 Claims
- 1. Apparatus comprising a carrier for receiving a load thereon, a load cell operative to sense forces applied thereto in a load-measuring direction, said load cell comprising a beam and shear-sensing transducer means carried by said beam, means for retaining said carrier in place relative to said load-sensing means and for applying at least a portion of a load supported by the carrier to said load cell in said load-measuring direction upon positioning of the load on said carrier, said last mentioned means comprising a carrier support member connected to said carrier and adapted to limit relative movement therebetween in directions transverse to said load measuring direction, means defining a radially oriented recess in said beam, said radially oriented recess including an inward end surface defining a load receiving surface, said carrier support member extending into said radially oriented recess and being effective to transmit a force proportional to at least a portion of said load to said load receiving surface in the load measuring direction, said radially oriented recess defining means for resisting relative movement of said carrier support member in directions transverse to said load measuring direction.
- 11. Apparatus comprising a carrier for supporting the wheels of a vehicle, means for supporting said carrier at a portion of the surface along which the vehicle runs with the carrier adapted to support the wheels of a vehicle as the vehicle traverses the portion of the surface at which said carrier is located and for sensing the forces applied to the carrier by the vehicle comprising a plurality of load cells, each of which is operative to sense forces applied thereto in a load measuring direction each of said load cells including a beam and shear-sensing transducer means carried by the beam, a plurality of support members each of which is associated with a respective beam, each of said beams including a radially oriented recess having an inward end surface defining a load receiving surface, each support member being received in a respective radially oriented recess with a portion of the support member adapted to transmit force to the load receiving surface in the load measuring direction, each radially oriented recess defining means for limiting relative movement between the support member and the load cell in directions transverse to said load measuring direction.
- 13. Apparatus for use with a carrier which receives a load thereon and which transmits at least a portion of the load received thereon to a carrier support member, said apparatus comprising a load cell operative to sense forces applied thereto in a load measuring direction, said load cell comprising an elongated axially extending beam having an axially extending neutral axis, said load measuring direction extending generally perpendicular to said neutral axis, said beam including means for receiving the carrier support member for directing the portion of the load transmitted to the carrier support member to the beam in the load measuring direction and for resisting movement of the carrier support member in directions transverse to the load measuring direction comprising means defining a radially oriented recess in said beam having wall means for resisting movement of the carrier support member in directions transverse to the load measuring direction, said radially oriented recess further including an inward end surface defining a load receiving surface and shear sensing transducer means carried by said beam to sense shear forces introduced into said beam by the application of forces to said beam in the load measuring direction.
Specification