Abstract: An operation unit for a construction machine includes an operation part configured to be operated to input a direction for operating the construction machine. When a first direction is input through the operation part, the operation part is configured to present a second direction corresponding to the first direction to an operator operating the operation part.

Abstract: An operation unit for a construction machine includes an operation part configured to be operated to input a direction for operating the construction machine. When a first direction is input through the operation part, the operation part is configured to present a second direction corresponding to the first direction to an operator operating the operation part.

Abstract: A linear-motor stator is configured by connecting a plurality of magnetic circuits along the axis of travel of the forcer (along the x-axis). The magnetic circuits are furnished with yokes and pluralities of field magnets fixed to the yokes. High-magnetic permeability members of magnetic permeability higher than that of the yokes are provided where adjoining magnetic circuits are connected, straddling the connections.

Abstract: A linear motor can include a coil part having a plurality of coils forming a coil line; a magnet yoke part having a plurality of permanent magnets facing the coil line; and a coil cooling part configured to cool the coil part. The coil cooling part can include a cooling panel having a heat conductive element, the heat conductive element transferring heat of the coil part to an outside; and a heat radiation part connected to the cooling panel, the heat radiation part being configured to radiate the heat transferred from the heat conductive element to the outside.

Abstract: A linear motor, includes a coil part having a plurality of coils forming a line; a magnetic yoke part having a plurality of permanent magnets facing the coil part; a cover member covering the coil part; and a coil cooling part formed inside the cover member and configured to cool the coil part by supplying cooling water; wherein the coil part has a structure where a resin material is formed on the circumferences of the coils and a glass film is formed on the resin material.

Abstract: A linear motor can include a coil part having a plurality of coils forming a coil line; a magnet yoke part having a plurality of permanent magnets facing the coil line; and a coil cooling part configured to cool the coil part. The coil cooling part can include a cooling panel having a heat conductive element, the heat conductive element transferring heat of the coil part to an outside; and a heat radiation part connected to the cooling panel, the heat radiation part being configured to radiate the heat transferred from the heat conductive element to the outside.