Abstract: A muscular strength assisting apparatus includes a drive means held by a first attachment tool attached to a torso, and a transmission means for transmitting a force output by the drive means to a second attachment tool attached to an upper arm. The transmission means includes an output shaft member coupled to the second attachment tool, and a switching means capable of switching between transmission and interruption of a force from the drive means to the output shaft member. The switching means is disposed on a rear, upper or laterally outer side of the output shaft member.

Abstract: A muscular strength assisting apparatus includes a first attachment tool mounted to one of two parts of a human body, which are connected together via a joint, a second attachment tool-mounted to the other part of the human body, and a rotary member rotatably supported to the first attachment tool and connected to the second attachment tool. A force for stopping rotation or rotating with respect to the first attachment tool is exerted on the rotary member. The second attachment tool includes an attachment portion attached to the human body and a coupling portion coupling the rotary member to the attachment portion. In a plane orthogonal to a rotation axis of the rotary member and including a connection position between the attachment portion and the coupling portion, a distance between a connection position of the coupling portion to the rotary member and the connection position of the coupling portion to the attachment portion varies.

Abstract: A muscular strength assisting apparatus includes a rotary member, a retention portion capable of restricting relative rotation thereof with respect to the rotary member, and an operation portion for acting on the retention portion. The rotary member is rotatable with respect to a first attachment tool and is connected to a second attachment tool, the first attachment tool being mounted to one of two parts of a human body which are connected together via a joint, the second attachment tool being mounted to the other part of the human body. In a state where relative rotation between the retention portion and the rotary member is restricted, the operation portion acts on the retention portion so that the rotary member rotates together with the retention portion with respect to the first attachment tool.

Abstract: One object is to ensure a desired moment for assisting in an activity of moving two body parts relative to each other, while keeping an output of an actuator generating a force at an action point low. A muscular strength assisting apparatus 1 includes a first assistance unit 10 having a first actuator 11 for changing a distance between a first body-side disposition portion 11A and a first outer-side disposition portion 11B, and a second assistance unit 20 having a second actuator 21 for changing a distance between a second body-side disposition portion 21A and a second outer-side disposition portion 21B. The muscular strength assisting apparatus 1 is mounted to a body so that a direction connecting the second body-side disposition portion 21A to the second outer-side disposition portion 21B is non-parallel to a direction connecting the first body-side disposition portion 11A to the first outer-side disposition portion 11B.

Abstract: A motor-driven vehicle includes a vehicle body. A wheel has a fixed axle secured to the vehicle body. A driving arrangement which includes a driving unit and a battery is built in the wheel. A manipulating unit is mounted on the vehicle body, which produces an electrical signal to be supplied to the driving arrangement. The fixed axle has a hollow in it, and a signal line interconnecting the manipulating unit and the driving arrangement is disposed in the hollow in the axle.

Abstract: A liquefied gas pump includes a piston and a cylinder which form a pump chamber into which a liquefied gas entrance path and a liquefied gas discharge path open. Relative upward and downward motion between the piston and cylinder provides a repetition of alternating suction and discharge stroke. Liquefied gas is sucked into the pump chamber through the entrance path during the suction strokes, and is discharged out of the pump chamber through the discharge path during the discharge strokes. A separate bubble discharge path opens into said pump chamber at a location in the bottom of an upward recess formed in the top portion of the pump chamber. The bottom of the recess is located above the location where the opening of the liquefied gas discharge path is formed.

Abstract: A system for vaporizing liquefied gas fuel supplied from a fuel tank and supplying it to an internal combustion engine includes a release path for releasing spontaneously evaporated fuel gas in said tank out of the tank. A catalytic burner is disposed in the release path for decomposing the fuel gas into hot steam and carbon dioxide. A release control valve disposed between the catalytic burner and the fuel tank selectively causes the burner and the fuel tank to communicate and to be decoupled from each other.