Self-compensating weight sensing fork blade assembly

Patent metadata

Field	Value
Publication number	US-10168202-B2
Application number	US-201615370540-A
Country	US
Kind code	B2
Filing date	Dec 6, 2016
Priority date	Dec 6, 2016
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A load-weighing assembly has a substantially laterally-extending beam-type load-weighing platform, and a substantially laterally-extending cantilever-type fork blade member located beneath the platform, interconnected by a load weight-measuring cell. The weight measuring cell is laterally movable with respect to at least one of the platform and blade member during an initial part of a load weighing process so as to minimize transmission of lateral force between the platform and the weight-measuring cell, thereby compensating for load-weighing errors which would otherwise occur.

First claim

What is claimed is:

1. A load-weighing assembly for a bad lifting system, said load-weighing assembly having a substantially laterally-extending load-weighing platform, and a substantially laterally-extending cantilever fork blade member located beneath said platform, said load-weighing platform and said cantilever fork blade member being interconnected by a load weight-measuring cell which is configured to move laterally with respect to at least one of said load-weighing platform and said cantilever fork blade member during an initial part of said load weighing so as to minimize transmission of lateral force between said load-weighing platform and said load weight-measuring cell during said initial part of said load weighing, said load weight-measuring cell being loosely connected to said laterally extending load-weighing platform at least during said initial part of said load weighing.

2. The load-weighing assembly of claim 1 wherein, during a subsequent part of said load weighing, said load-weighing assembly automatically prevents said weight-measuring cell from moving laterally.

3. The load-weighing assembly of claim 1 , wherein said cantilever fork blade member is an elongate cantilever member which supports said load-weighing platform at multiple laterally separated positions along said cantilever fork blade member.

4. The load-weighing assembly of claim 1 including a plurality of said load-weight measuring cells loosely connected to said laterally extending load-weighing platform during said initial part of said load weighing.

Assignees

• Cascade Corp

Inventors

• Richards Lawrence E

Classifications

• G01G19/083 Primary

  lift truck scale · CPC title

• B66F17/003

  for fork-lift trucks · CPC title

• B66F9/12

  Platforms; Forks; Other load supporting or gripping members · CPC title

• G01G21/23

  Support or suspension of weighing platforms (G01G21/24 takes precedence) · CPC title