Forklift scale sensor attachment and mounting

Patent metadata

Field	Value
Publication number	US-2022267130-A1
Application number	US-202217585915-A
Country	US
Kind code	A1
Filing date	Jan 27, 2022
Priority date	Feb 25, 2021
Publication date	Aug 25, 2022
Grant date	—

Abstract

The present disclosure provides a lift truck attachment system that includes a lift truck weighing device with a carriage mounted scale configured to support load handling fixtures and to be secured to a lift truck carriage. The weighing device includes one or more sensors arranged at a mounting interface between the lift truck carriage and the carriage mounted scale. The lift truck weighing device includes one or more of rails, plates, and/or mounting brackets, as a list of non-limiting examples, arranged at the interface with the one or more sensors, which measure a load from the load handling fixtures.

First claim

What is claimed is:

1 . A lift truck carriage comprising one or more rails, each rail comprising a fixture mount to support one or more load handling fixtures and a base portion to house a sensor configured to measure forces on the one or more rails from the one or more load handling fixtures.

2 . The lift truck carriage of claim 1 , wherein the one or more load handling fixtures are mounted to a plate supported by the one or more rails.

3 . The lift truck carriage of claim 1 , wherein the one or more rails is removably secured to the lift truck carriage.

4 . The lift truck carriage of claim 1 , wherein the fixture mount has a void at an interface between the base portion and the fixture mount, the void being aligned with the load sensor.

5 . The lift truck carriage of claim 1 , further comprising two or more support brackets configured to secure the one or more rails in a fixed orientation, and arranged between a pair of masts of a lift truck.

6 . The lift truck carriage of claim 5 , wherein the one or more rails comprises a first and a second rail, the first rail oriented within the support brackets such that a first fixture mount of the first rail is arranged above a first base portion housing a first load sensor.

7 . The lift truck carriage of claim 6 , wherein the second rail is oriented within the support brackets such that a second fixture mount of the second rail is arranged laterally to a second base portion housing a second load sensor.

8 . The lift truck carriage of claim 7 , wherein the second fixture mount is oriented facing opposite a lift truck.

9 . A lift truck weighing device comprising a loading plate configured to support one or more load handling fixtures, the loading plate comprising one or more openings arranged between two or more fasteners configured to secure the loading plate to a lift truck carriage, wherein the one or more openings to house a load sensor configured to measure forces on the loading plate from the one or more load handling fixtures.

10 . The lift truck weighing device of claim 9 , wherein the one or more openings are arranged between two or more fasteners configured to secure the loading plate to a mounting plate.

11 . The lift truck weighing device of claim 10 , wherein another fastener secures the mounting plate to the lift truck carriage.

12 . The lift truck weighing device of claim 9 , wherein the one or more openings extends through the mounting plate.

13 . The lift truck weighing device of claim 9 , wherein the load sensor is a strain gauge.

14 . A lift truck weighing device comprising:
a loading plate configured to support one or more load handling fixtures; a mounting plate configured to secure the lift truck weighing device to a lift truck carriage; one or more sensor plates arranged between the loading plate and the mounting plate, the one or more sensor plates being secured to the loading plate at a first portion and secured to the mounting plate at a second portion; and one or more sensors arranged on the one or more sensor plates between the first and second portions, the one or more sensors configured to measure forces transferred from the loading plate to the mounting plate through the one or more sensor plates.

15 . The lift truck weighing device of claim 14 , wherein a first sensor of the one or more sensors is arranged on an upper portion of a first sensor plate of the one or more sensor plates, and a second sensor of the one or more sensors is arranged on a lower portion of the first sensor plate.

16 . A lift truck weighing device comprising:
a carriage mounted scale configured to support one or more load handling fixtures and to be secured to a lift truck carriage that includes one or more rails secured to the lift truck carriage; and one or more sensors arranged at a mounting interface between the lift truck carriage and the carriage mounted scale, the one or more sensors configured to measure a load from the one or more load handling fixtures.

17 . The lift truck weighing device of claim 16 , further comprising one or more mounting blocks with the one or more sensors incorporated therein, the one or more mounting blocks configured to secure the lift truck carriage to the carriage mounted scale.

18 . The lift truck weighing device of claim 16 , wherein the one or more sensors are incorporated in the carriage mounted scale and arranged between a load handing fixture mount and a mounting fastener between the lift truck carriage and the carriage mounted scale.

19 . The lift truck weighing device of claim 16 , wherein the lift truck carriage includes one or more holes to accept at least part of the one or more sensors or a mounting fastener in the lift truck carriage as the one or more sensors extend from the carriage mounted scale.

Assignees

• Illinois Tool Works

Inventors

• Sukalski Andrew
• Johnson Thomas Howard
• Detert Kevin
• Hainy Cory
• Holland Eric

Classifications

• B66F17/003 Primary

  for fork-lift trucks · CPC title

• B66F9/08

  Masts; Guides; Chains · CPC title