Daifuku Co., Ltd.

Masato Inaba

Jun Hamaguchi

Kazuhiko Miyoshi

Kazutoshi Takeda

Hiroshi Kitagawa

A flat storage facility includes a storage/retrieval device having a Y-direction moving member that is horizontally movable at a certain height above a storage item placement plane. A carriage is horizontally movable in an X direction on the Y-direction moving member, and a storage item gripping mechanism is provided in the carriage. The storage/retrieval device performs storage/retrieval on a storage item between the storage/retrieval device and respective storage item placement points set on the storage item placement plane. The storage item placement plane is divided into a plurality of unit sections at various heights with respect to a reference plane. When the storage/retrieval operation is performed with the storage/retrieval device, the lowering distance of the storage item gripping mechanism with respect to the carriage is adjusted according to the height of the unit section to which the storage item placement point of a storage/retrieval target belongs.

Method for controlling storage/retrieval device in flat storage facility

A flat storage facility includes a storage/retrieval device having a Y-direction moving member with a length corresponding to the width of a storage item placement plane in an X direction and that is movable in a forward/backward Y direction of the storage item placement plane. A carriage is supported on the Y-direction moving member and is movable in the X direction. A storage item gripping mechanism is supported on the carriage so as to be freely raised and lowered. Lowering of the storage item gripping mechanism is controlled such that downward flexural deformation distances between end portions of the Y-direction moving member in the X direction are determined. Lowering distance adjustment values of the storage item gripping mechanism for the storage item placement points are set based on the downward flexural deformation distances, and lowering distances of the storage item gripping mechanism are reduced by the lowering distance adjustment values.

A raising/lowering conveyance apparatus has at least two sets of container holders operable to be raised/lowered in conjunction with each other, and to be freely movable closer to or away from containers in the back-and-forth horizontal direction. A sensor operable to detect the upper end height of the transferred containers which have been transferred and raised is attached to a position near the lower end of each container holder, to determine abnormality in posture of the transferred containers through a comparison operation between the value of the upper end height of the transferred containers detected by the sensor and the normal value of the upper end height of the transferred containers calculated on the basis of the height of the container being handled.

Raising/lowering conveyance apparatus for article conveying container with container condition sensors

A thermosensitive wire ( ), including a pair of phosphor bronze round wires which cause a short-circuit when the ambient temperature exceeds a predetermined temperature, is laid along an induction line ( ), and a protective device ( ) including a DC power supply unit ( ) for applying a DC voltage and a meter relay ( ) for detecting that the thermosensitive wire ( ) has caused a short-circuit is provided on both ends of the thermosensitive wire ( ). An alarm output ( A) of the meter relay ( ) is outputted to a high-frequency generating circuit ( ) so as to shut down a high-frequency current to be supplied to the induction line ( ). With this structure, even when a metal such as a tool made of iron is erroneously set near the induction line ( ), the heating thereof may be detected by using the thermosensitive wire ( ) and the high-frequency current flowing through the induction line ( ) may be shut down. Thus, fire accidents such that the induction line ( ) is heated and burnt by further heating may be prevented.

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Shiga, Japan

Masato Inaba