Abstract: A hydraulic pressure controller includes: a hydraulic pressure control mechanism including a brake control valve for controlling a hydraulic pressure of a brake fluid; and a control substrate including a brake control circuit that controls an operation of the brake control valve. The control substrate includes a suspension control circuit that controls an operation of a suspension control valve for controlling a damping force of a suspension of the vehicle, a first relay that enables energization between the brake control valve and a power supply, and that shuts off energization between the brake control valve and the power supply, and a second relay that enables energization between the suspension control valve and the power supply, and that shuts off energization between the suspension control valve and the power supply.

Abstract: A vehicle body structure for an electric vehicle includes: a battery disposed at a center lower portion of a vehicle body; a side sill being hollow and extending in a vehicle body front-rear direction outside in a vehicle width direction of the battery; a bridge beam member being hollow, disposed below the side sill and outside in the vehicle width direction of the battery, extending in the vehicle body front-rear direction, and having a cross section perpendicular to the vehicle body front-rear direction formed as a closed cross section; and at least one bridge pier member made of steel, extending in the vehicle width direction from the battery toward the bridge beam member, and having a cross section perpendicular to the vehicle width direction forming at least a part of a closed cross-sectional shape.

Abstract: A method of assembling a floor structure of a construction machine is based upon the machine with a stepwise part that is located at a lower level on the outside is formed on the end edge of a floor plate as a floor structure. In case of a cabin specification with a cabin mounted, a device for opening and closing a door is housed in the stepwise part with the stepwise part filled in, and a first floor mat having a substantially constant thickness is mounted on the floor plate. In case of a canopy specification having a canopy, a second floor mat having on its end edge a protrusion which is fitted into the stepwise part instead of the device to fill the part is mounted on the floor plate. Accordingly, the same floor plate can be employed in both cabin and canopy specifications, regardless of the specification, thereby reducing the number of parts constituting the floor structure.

Abstract: A counterweight mounting structure for construction machine to which a counterweight is connected through a gap to an exterior constituting an upper rotating body is constituted such that a recessed groove is provided on an end on a connection side of the counterweight, an elastic soundproof material is installed in the recessed groove, and the soundproof material protruding from the recessed groove is brought in contact with, and pressed against an end on the connection side of the exterior when the counterweight is mounted. As a result, there is provided the counterweight mounting structure whose soundproof capability does not decrease even after the counterweight is mounted/dismounted.

Abstract: In a construction machine having a working attachment, an operator's seat disposed on one side of a machine body, a devices receptacle portion disposed on the other side, and an operating member disposed sideways of the seat for operating the attachment, the machine is characterized in that a canopy comprises a front support post disposed in front of the seat, a rear support post disposed behind the seat, a side support post disposed sideways of the seat and on the side where an operator gets on and off the machine body, and a roof which connects the support posts with one another, the front support post being disposed close to the devices receptacle portion and the side support post being disposed outside the operating member to form an open portion obliquely in front of the seat where open portion is for ensuring a working vision for the attachment which is swung to the seat side.

Abstract: A cabin frame for a cabin of a construction machine includes a combination of a posterior frame body having a predetermined strength and an anterior frame body disposed in front thereof. The posterior frame body defines a common element that is used in common between different machine models, whereas the anterior frame body defines an adjustment element such that its dimension in a front-back direction of the construction machine is determined according to the corresponding machine model. Another cabin frame includes a combination of an anterior frame body defining a common element used in common between three machine models, namely, a model with an operator-protecting function, a low-tare model with an operator-protecting function, and a high-tare model with an operator-protecting function; and a posterior frame body defining a replaceable element having a predetermined strength selected from a plurality of strengths set for the corresponding machine models.

Abstract: A counterweight mounting structure for construction machine to which a counterweight is connected through a gap to an exterior constituting an upper rotating body is constituted such that a recessed groove is provided on an end on a connection side of the counterweight, an elastic soundproof material is installed in the recessed groove, and the soundproof material protruding from the recessed groove is brought in contact with, and pressed against an end on the connection side of the exterior when the counterweight is mounted. As a result, there is provided the counterweight mounting structure whose soundproof capability does not decrease even after the counterweight is mounted/dismounted.

Abstract: A method of assembling a floor structure of a construction machine is based upon the machine with a stepwise part that is located at a lower level on the outside is formed on the end edge of a floor plate as a floor structure. In case of a cabin specification with a cabin mounted, a device for opening and closing a door is housed in the stepwise part with the stepwise part filled in, and a first floor mat having a substantially constant thickness is mounted on the floor plate. In case of a canopy specification having a canopy, a second floor mat having on its end edge a protrusion which is fitted into the stepwise part instead of the device to fill the part is mounted on the floor plate. Accordingly, the same floor plate can be employed in both cabin and canopy specifications, regardless of the specification, thereby reducing the number of parts constituting the floor structure.

Abstract: In a construction machine having a working attachment, an operator's seat disposed on one side of a machine body, a devices receptacle portion disposed on the other side, and an operating member disposed sideways of the seat for operating the attachment, the machine is characterized in that a canopy comprises a front support post disposed in front of the seat, a rear support post disposed behind the seat, a side support post disposed sideways of the seat and on the side where an operator gets on and off the machine body, and a roof which connects the support posts with one another, the front support post being disposed close to the devices receptacle portion and the side support post being disposed outside the operating member to form an open portion obliquely in front of the seat where open portion is for ensuring a working vision for the attachment which is swung to the seat side.

Abstract: A bobbin unit for a brushless alternator field coil, which can reduce the diameter of a bobbin, need not wind a tape and can be made easily, has a ring-shaped iron core having a thick wall; a plate having a hole whose inside diameter is as large as that of the iron core and which is composed of a thin wall cylindrical portion having an end which is abutted against and connected by an abutting/connecting operation to an end surface of the iron core with the axial center of the cylindrical portion being in coincidence with that of the iron core, and a flange portion formed at the opposite side of the cylindrical portion and extending outwardly in a radial direction; and a resinous bobbin interposed between the iron core and the plate for insulating and accommodating a field coil.