Systems for monitoring person lifting devices using load tension pins

Patent metadata

Field	Value
Publication number	US-11654069-B2
Application number	US-202117374126-A
Country	US
Kind code	B2
Filing date	Jul 13, 2021
Priority date	Jun 1, 2017
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A multi-link device includes a load tension pin including a sensor configured to measure tension applied to the load tension pin, network interface hardware, one or more processors, and one or more memory modules storing computer readable and executable instructions which, when executed by the one or more processors, cause the multi-link device to: determine whether the tension measured by the load tension pin exceeds a threshold value; and transmit, by the network interface hardware, load event data to a receiver in response to determination that the tension exceeds the threshold value.

First claim

What is claimed is:

1. A multi-link device comprising:
a load tension pin including a sensor configured to measure tension applied to the load tension pin;
network interface hardware;
one or more processors; and
one or more memory modules storing computer readable and executable instructions which, when executed by the one or more processors, cause the multi-link device to:
determine whether the tension measured by the load tension pin exceeds a threshold value;
transmit, by the network interface hardware, a first binary code to a receiver in response to determination that the tension exceeds the threshold value; and
transmit, by the network interface hardware, a second binary code to the receiver in response to determination that the tension becomes less than the threshold value.

2. A person lift device comprising:
an actuator;
a lift arm coupled to the actuator, one end of the lift arm being configured to move vertically by the actuator;
a multi-link device coupled to the one end of the lift arm, the multi-link device comprising:
a load tension pin including a sensor configured to measure tension applied to the load tension pin;
network interface hardware;
one or more processors; and
one or more memory modules storing computer readable and executable instructions which, when executed by the one or more processors, cause the multi-link device to:
determine whether the tension measured by the load tension pin exceeds a threshold value; and
transmit, by the network interface hardware, load event data to a receiver in response to determination that the tension exceeds the threshold value; and
a bar attached to the load tension pin.

3. The person lift device of claim 2 , wherein the load event data is a binary code.

4. The person lift device of claim 2 , wherein the computer readable and executable instructions, when executed by the one or more processors, further cause the multi-link device to:
determine whether the tension measured by the load tension pin becomes less than the threshold value; and
transmit, by the network interface hardware, unload event data to the receiver in response to determination that the tension becomes less than the threshold value.

5. The person lift device of claim 2 , wherein the one or more memory modules store a location of the multi-link device, and the multi-link device transmits the load event data along with the location to the receiver.

6. The person lift device of claim 2 , wherein the sensor includes one or more strain gauges.

7. The person lift device of claim 2 , wherein the network interface hardware is configured to communicate with the receiver via at least one of Wi-Fi, Bluetooth, and RFID communication.

Assignees

• Liko Res & Dev Ab

Inventors

• Bolin Andreas

Classifications

• H04W4/02

  Services making use of location information · CPC title

• A61G7/1065 Primary

  with electronic monitoring · CPC title

• A61G7/1061

  Yokes · CPC title

• G01L5/0071

  Specific indicating arrangements, e.g. of overload · CPC title

• A61G2203/32

  for force · CPC title