摘要:
A device (18) for absorbing floor-landing shock provided in a foot mechanism (6) of a leg of a robot. The device comprises an inflatable/ deflatable bag-like member (19) (variable volume body) on the ground contact surface side of the foot mechanism (6). The bag-like member (19) is formed of an elastic material such as rubber and has a restoration capability. The inside of the bag-like member (19) is open to the atmosphere through a passage (20). W hen the leg lands on the floor, the bag-like member (19) touches the ground and is compressed, causing air in the bag-like member to flow out into the atmosphere through the passage (20), which produces an outflow resistance. This reduces floor-landing shock. While the leg body is off the floor, the bag-like member (19) is inflated by the restoring capability of the member as air flows into it. The shock load in floor-landing of the leg body of a legged mobile robot can be reduced smoothly by a light-weighted structure.
摘要:
A landing shock absorbing device 18 disposed in a foot mechanism 6 of a leg of a robot, wherein an inflatable bag-like member 19 (a variable capacity element) is provided at a ground-contacting face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber and has a restoring force. An interior portion of the bag-like member 19 is communicated with the atmosphere side through a flow passage 20. During a landing motion of the leg, the bag-like member 19 makes contact with the ground to be compressed, and the air in the interior portion thereof flows out into the atmosphere through the flow passage 20, so that its outflow resistance is generated. Accordingly, a landing shock is reduced. In a lifting state of the leg, the restoring force of the bag-like member 19 allows the bag-like member 19 to be inflated while the air flows into the interior portion thereof. An impact load during the landing of the leg of the legged mobile robot may smoothly be reduced in a light-weight configuration.