Crane vehicle

Patent metadata

Field	Value
Publication number	US-11053105-B2
Application number	US-201716343607-A
Country	US
Kind code	B2
Filing date	Oct 18, 2017
Priority date	Oct 21, 2016
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A rough terrain crane is equipped with dashboard cameras and digital cameras for capturing bird's-eye view image thereof. The equipment performs, when a load factor reaching 90%, a process of recording start for starting image data recording with the digital camera and a process of storing measurement value for recording a load factor concurrently with the process of recording start. The image data is recorded with the digital camera associated with the above activation condition, among the digital cameras installed in the rough terrain crane.

First claim

The invention claimed is:

1. A crane vehicle comprising:
a carrier;
a slewing base slewably supported on the carrier;
a boom supported by the slewing base in a derrickable and telescopic manner;
a hook which is suspended from a distal end of the boom with a wire therebetween, and is configured to engage with a hoisted load;
a load detection means for detecting a load being applied to the hook;
a plurality of digital cameras;
a storage unit configured to store image data outputted by the digital cameras; and
a controller,
wherein the controller performs,
when a predetermined measurement value meets a predetermined condition, a process of recording start which associates the digital cameras outputting image data to be stored when the predetermined measurement value meeting the predetermined condition with the relevant predetermined condition and starts storing in the storage unit the image data outputted by the digital cameras associated with the predetermined condition, and
a process of storing measurement value to store the predetermined measurement value in the storage unit concurrently with the process of recording start,
wherein the predetermined measurement value represents a load factor that is the ratio of the weight of hoisted load detected by the load detection means to the suspendible maximum weight of the hoisted load, and
wherein the predetermined condition is that the load factor exceeds a predetermined threshold.

2. The crane vehicle according to claim 1 , wherein at least one of the digital cameras is installed as a dashboard camera.

3. The crane vehicle according to claim 1 , wherein at least one of the digital cameras is installed for capturing bird's-eye view image of the crane vehicle.

4. A crane vehicle, comprising:
a carrier;
a slewing base slewably supported on the carrier;
a boom supported by the slewing base in a derrickable and telescopic manner;
a hook which is suspended from a distal end of the boom with a wire therebetween, and is configured to engage with a hoisted load;
an outrigger which is disposed on the carrier, and is placed upon the ground so as to cause the carrier to have a stable posture;
a telescopic actuator for extending and retracting the boom;
a derrick actuator for raising and lowering the boom;
a winch actuator configured to operate the wire so as to vertically move the hook;
a boom telescopic operation unit configured to operate the telescopic actuator;
a boom derricking operation unit configured to operate the derrick actuator;
a winch operation unit configured to operate the winch actuator;
a plurality of digital cameras;
a storage unit configured to store image data outputted by at least one of the plurality of digital cameras; and
a controller,
wherein the controller performs,
when a predetermined measurement value meets a predetermined condition, a process of recording start which associates the at least one digital camera outputting image data to be stored when the predetermined measurement value meeting the predetermined condition with the relevant predetermined condition and starts storing in the storage unit the image data outputted by the at least one digital camera associated with the predetermined condition, and
a process of storing measurement value to store the predetermined measurement value in the storage unit concurrently with the process of recording start,
the crane vehicle further comprising an over-hoisting detection means for detecting that a distance of the hook from the distal end of the boom becomes equal to or less than a predetermined length,
wherein the predetermined measurement value represents information on whether the distance of the hook from the distal end of the boom becomes equal to or less than the predetermined length, an operational orientation and an operation quantity for the boom telescopic operation unit, an operational orientation and an operation quantity for the boom derricking operation unit, and an operational orientation and an operation quantity for the winch operation unit, and
wherein, where the over-hoisting detection means detects that the distance of the hook from the distal end of the boom becomes equal to or less than the predetermined length, the predetermined condition includes the operational orientation of the boom telescopic operation unit being an extended orientation of the boom, the operational orientation of the boom derricking operation unit being a lowered orientation of the boom, or the operational orientation of the winch operation unit being a lifted orientation of the hook.

Assignees

• Tadano Ltd

Inventors

• Sembo Hajime

Classifications

• H04N5/915

  for field- or frame-skip recording or reproducing · CPC title

• B66C13/00

  Other constructional features or details · CPC title

• H04N5/91

  Television signal processing therefor · CPC title

• G07C5/00

  Registering or indicating the working of vehicles · CPC title

• H04N7/18

  Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast · CPC title