JPH0286920U

JPH0286920U -

Info

Publication number: JPH0286920U
Application number: JP16573088U
Authority: JP
Priority date: 1988-12-23
Filing date: 1988-12-23
Publication date: 1990-07-10
Anticipated expiration: 2003-12-23
Also published as: JPH068102Y2

Description

[Brief explanation of the drawing]

第１図は第１の考案の一実施例の概略構成図、
第２図は同上実施例の搬送車の回路ブロツク図、
第３図は同上実施例の原点復帰制御動作を説明す
る図、第４図は第２の考案の一実施例の概略構成
図、第５図は第２の考案の別の実施例の概略構成
図、第６図は従来の原点復帰動作を説明する図で
ある。１…軌道、２，３…反射板、１０…搬送車、１
５…制御回路、１６…第１リミツトセンサ、１７
…第２リミツトセンサ、１８…原点センサ、Ｘ，
Ｙ…軌道端、Ｚ…原点、Ｌ_１…リミツトセンサ間
距離、Ｌ_２…限界領域長さ。 FIG. 1 is a schematic diagram of an embodiment of the first invention;
Figure 2 is a circuit block diagram of the carrier vehicle of the same embodiment as above;
FIG. 3 is a diagram explaining the origin return control operation of the same embodiment as above, FIG. 4 is a schematic configuration diagram of an embodiment of the second device, and FIG. 5 is a schematic configuration diagram of another embodiment of the second device. 6 are diagrams for explaining the conventional origin return operation. 1... Track, 2, 3... Reflector, 10... Transport vehicle, 1
5... Control circuit, 16... First limit sensor, 17
...Second limit sensor, 18...Origin sensor, X,
Y...Trajectory end, Z...Origin, _L1 ...Distance between limit sensors, _L2 ...Limit area length.

Claims

[Scope of Claim for Utility Model Registration] (1) A transport vehicle is configured to reciprocate between both ends of the track, and the stopping position of the transport vehicle within the track section is from a predetermined origin position within the track section. In the transport device, a first sensor and a second sensor are provided on the transport vehicle side at positions shifted in the traveling direction, and a second sensor is located between the first and second sensors. While installing 3 sensors,
A first limit area that is longer than the distance between the first sensor and the second sensor indicating the end of the trajectory, and a second limit area are provided at the end of the track on the first sensor side and the end of the track on the second sensor side.
Each limit area is set, and an origin is set at a position within the first limit area that is shorter than the distance between the first sensor and the second sensor from the area end on the opposite side to the track end side area end. , only the first sensor
An origin position stop control means that detects a limit area and stops the guided vehicle at the origin position when a third sensor detects the origin, and an abnormality that determines an abnormality when the first and second sensors detect the same limit area. A conveying device comprising: a determining means. (2) In a conveying device in which a load carrying vehicle reciprocates between both ends of a track, sensors are provided at both ends of the conveying vehicle, and sensors are provided at both ends of the track to indicate the end of the track. a first abnormality stopping means that sets an abnormality determination area that is longer than the distance between the two sensors, and decelerates and stops the guided vehicle when only the sensor at the end on the side in the traveling direction of the guided vehicle detects the abnormality determination area; A second system that makes an emergency stop of the transport vehicle when the sensor detects the same abnormality determination area.
A conveying device characterized by comprising: abnormality stopping means.