Travel obstructing device

Patent metadata

Field	Value
Publication number	US-10272931-B2
Application number	US-201715794067-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Oct 31, 2016
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A travel obstructing device comprises a supported portion configured to be placed on a railed track, a main body portion which is suspended from, and supported by, the supported portion, a power-receiving portion configured to receive electric power from a non-contact-type electricity supplying portion, and a warning device configured to receive electric power supplied from the power-receiving portion and to issue a warning.

First claim

What is claimed is:

1. A travel obstructing device for use in an article transport facility that includes a railed track provided with a non-contact-type electricity supplying portion, and a ceiling transport vehicle configured to receive electric power from the non-contact-type electricity supplying portion and to travel along the railed track, the travel obstructing device being configured to be removably placed on the railed track and to obstruct travel of the ceiling transport vehicle when the travel obstructing device is placed on the railed track, the travel obstructing device comprising:
a supported portion configured to be placed on the railed track;
a main body portion which is suspended from, and supported by, the supported portion and which is configured to obstruct travel of the ceiling transport vehicle;
a power-receiving portion configured to be located across from the non-contact-type electricity supplying portion and to receive electric power from the non-contact-type electricity supplying portion; and
a warning device configured to receive electric power supplied from the power-receiving portion and to issue a warning.

2. The travel obstructing device as defined in claim 1 , wherein the railed track includes a pair of rail members spaced apart from each other along a lateral width direction,
wherein the supported portion is capable of being passed through a gap between the pair of rail members when the supported portion is in a first posture in which the supported portion extends parallel to the railed track, wherein the supported portion is in a state to be placed on the pair of rail members when the supported portion is in a second posture in which the supported portion extends perpendicular to the railed track, and
wherein the supported portion is placed on the pair of rail members and the power-receiving portion becomes ready to receive electric power with a posture of the supported portion changed from the first posture to the second posture, at a higher height than the railed track.

3. The travel obstructing device as defined in claim 1 , wherein the warning device is configured to emit at least one of light and sound as the warning.

4. The travel obstructing device as defined in claim 1 , wherein the ceiling transport vehicle is configured to stop automatically when a sensor of a reflection type provided to a vehicle main body detects an obstacle located ahead in a traveling direction, and
wherein a reflecting plate is provided to the main body portion at a height that corresponds to a height of the sensor of the ceiling transport vehicle.

Assignees

• Daifuku Kk

Inventors

• Murakami Ryuya

Classifications

• B61L5/189 Primary

  using flashing light sources · CPC title

• B65G2203/0266

  relating to the load carrier(s) · CPC title

• B66C7/16 Primary

  Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops (buffer-stops of interest apart from this application B61K7/18; limit-switch arrangements, limit circuits B66D1/56) · CPC title

• B61L5/206

  Signalling means for special purposes · CPC title

• B66C15/065

  electrical · CPC title