Weighing bar assembly

• US 10,718,657 B2
• Filed: 12/13/2016
• Issued: 07/21/2020
• Est. Priority Date: 12/16/2015
• Status: Active Grant

• Current Assignee: Robert Bosch Limited (Robert Bosch GmbH)
• Original Assignee: Robert Bosch Limited (Robert Bosch GmbH)
• Inventors: Vasconcelos, Alvaro Augusto, Ribeiro, Jr., Luiz Fernando L.
• Primary Examiner(s): Gibson, Randy W
• Application Number:
  US16/062,948
• Publication Number:
  US 20180364093A1
• Time in Patent Office: 1,316 Days
• Field of Search: 177126
• CPC Class Codes: G01G 21/23 Support or suspension of weighing platforms G01G21/24 takes precedence
• CPC Class Codes: G01G 21/28 Frames, Housings
• CPC Class Codes: G01G 23/06 Means for damping oscillations, e.g. of weigh beams

Abstract

A weighing bar assembly includes a hollow structural part (1), with two load cells (2) positioned therein. The assembly further includes two ground support shoes (4). Each of the load cells (2) is attached at one end to the structural part (1) by a securing block (3) and at its other end to a corresponding ground support shoe (4).

Claims

1. A weighing bar assembly including a hollow structural part (1), wherein two load cells (2) are positioned inside the hollow structural part (1), further including two ground support shoes (4), wherein each of the load cells (2) is attached at one end to the structural part (1) by means of a securing block (3) and is attached at its other end to a corresponding ground support shoe (4), characterized in that the structural part (1) is made of a metal tube having a rectangular or square cross-section and has removable side covers (15), additionally the securing blocks (3) are joined to the structural part (1) by screws (8).

2. A weighing bar assembly according to claim 1, characterized in that each of the two load cells (2) is attached to the respective securing block (3) by screws.

3. A weighing bar assembly according to claim 1, characterized in that each of the support shoes (4) is attached to the respective load cell (2) by a screw (10), which passes through a core (11) having a tubular part, a tubular pad (12) and a tubular spacer (13).

4. A weighing bar assembly according to claim 1, characterized in that each of a core (11) and a tubular spacer (13) are positioned loosely around the screw (10).

5. A weighing bar assembly according to claim 3, characterized in that the tubular pad (12) is positioned around the tubular spacer (13) and below a ring-shaped portion of the core (11).

6. A weighing bar assembly according to claim 3, characterized in that the pad (12) is made of a material having elastomeric properties.

7. A weighing bar assembly according to claim 1, characterized in that the structural part (1) has holes (6) for bolts (8), a bore (5) for cables (18) and openings (19) for securing the support shoes (4) to the load cells (2).

8. A weighing bar assembly according to claim 7, characterized in that sealing rings (16) are disposed around the openings (19).