Abstract: This is a technology for non-contact power transmission to the laboratory animal biological information acquisition device 12 embedded in the multiple laboratory animals in the breeding cage 14, and provides the power reception device, which can observe the behavior of laboratory animals from outside without covering the breeding cage 14 with the power transmission side, and which can continuously supply power regardless of the direction and position of the laboratory animals. The secondary coil part 22 includes a magnetic core 31 having a circular cross-section perpendicular to the longitudinal direction, and a plurality of spiral coils 40a and 40b formed by winding a conductor so that the outer shape is substantially rectangular.

Abstract: A hydraulic excavator includes a lower travel body, an upper swivel buds, a harness and a bracket. The harness is drawn out from an interior of a cab, disposed between the cab and a center frame, and connected to electrical components. The bracket is secured to the cab and supports the harness along a side surface of the cab. The harness is supported about a periphery of the bracket, and has a first, portion downwardly drawn out from a bottom surface of the cab, a second portion extending more outward than the side surface of the cab and forward from the first portion along the bottom surface of the cab, a third portion extending upward from the second portion along the side surface of the cab, and a fourth portion extending toward a rear part of the hydraulic excavator from the third portion along the side surface of the cab.

Abstract: A hydraulic excavator includes a lower travel body, an upper swivel buds, a harness and a bracket. The harness is drawn out from an interior of a cab, disposed between the cab and a center frame, and connected to electrical components. The bracket is secured to the cab and supports the harness along a side surface of the cab. The harness is supported about a periphery of the bracket, and has a first, portion downwardly drawn out from a bottom surface of the cab, a second portion extending more outward than the side surface of the cab and forward from the first portion along the bottom surface of the cab, a third portion extending upward from the second portion along the side surface of the cab, and a fourth portion extending toward a rear part of the hydraulic excavator from the third portion along the side surface of the cab.