Murata Machinery, Ltd.

Kenji Kadoguchi

Yasutake Yamada

Masataka Hayashi

Kazuhiro Ishikawa

Tetsuya Shimizu

Isao Fukuda

Shogo Terada

A transport device includes a carriage that travels along a traveling path that is predetermined; a transfer mechanism provided on the carriage and transfers an article in a transfer space set in the traveling path; a first movable element that is a rod shaped component attached to the carriage, extends in a traveling direction of the carriage, and operates by magnetism to drive the transfer mechanism; and a first stator fixedly disposed with respect to the traveling path, has a partially cutout ring shape, and causes the first movable element to operate by magnetism when part of the carriage is positioned outside the transfer space.

Transport device and transport system

A position detection system includes: two magnet rows including a plurality of magnets arrayed cyclically and repeatedly with an array pattern as one cycle in a detection direction, a magnet in the magnet row and a magnet in the magnet row facing each other at surfaces having different polarities at a specific position in the detection direction; a magnetic sensor disposed between the two magnet rows, a relative position of the magnetic sensor relative to the two magnet rows in the X-axis direction being variable; and a determiner that determines a position of the magnetic sensor in an predetermined direction relative to the two magnet rows based on a detection value of the magnetic sensor.

Position detection system and travel system

An article transferring device that transfers articles includes: a traveling rail; primary-side stators; a power source; a first transporting carriage and a second transporting carriage each of which includes a secondary-side movable element and transports an article by the secondary-side movable element receiving a magnetic action from the primary-side stators. Each of the first transporting carriage and the second transporting carriage is caused to travel so as to be stopped or change a traveling speed individually by a ground primary-side linear motor system including the primary-side stators and the secondary-side movable element, and further includes a transferring unit that transfers the article in an intersecting direction intersecting with the predetermined path by receiving force from the power source.

Article transferring device

An article conveyance apparatus includes a carriage which travels along a predetermined travel path, and an on-ground facility including a pair of traveling rails which define the travel path. The carriage includes a first slider which operates according to magnetic action to drive a transfer mechanism, and a drive transmission mechanism which supports the first slider and transmits a driving force from the first slider to the transfer mechanism. The on-ground facility includes a first stator which applies magnetic action to the first slider in the carriage to operate the first slider. The first stator includes an opening through which the drive transmission mechanism of the carriage passes. The opening is disposed in a position such that the inside of the first stator is not seen from the opening in top view of the first stator.

Article conveyance apparatus

A linear motor system that includes a field system in which magnets are arrayed such that polarities are alternately different, armatures, a magnetic detector which includes first, second and third hall elements, and in which an electrical angle phase of the third hall element is shifted from that of the first hall element by 90&#xb0; and an electrical angle phase of the second hall element is shifted from that of the first hall element by 180&#xb0;, and a calculator which calculates a first electrical angle from outputs of the first and the third hall elements, calculates a second electrical angle from outputs of the second and the third hall elements, and calculates an estimated value of an electrical angle by weighting is provided. An electrical angle with a larger amplitude between the first and the second electrical angles is multiplied by a relatively larger coefficient value.

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Inuyama, Japan

Kenji Kadoguchi