Abstract: A robot control device includes a casing including a main body having a first opening and a second opening, and a door opening and closing the first opening, a first circuit including a heat generating element, and at least one blower device. The main body includes a first chamber accommodating the first circuit and open at the first opening, and a second chamber adjacent to the first chamber and open at the first opening and the second opening. When the door closes the first opening, the door closes the first chamber and communicates the second chamber with the outside via a door opening of the door. The blower device is disposed at least one of positions at the door opening, near the door opening, at the second opening, and near the second opening, and is configured to introduce and discharge air into/from the second chamber.

Abstract: A robot control device includes a casing including a main body having a first opening and a second opening, and a door opening and closing the first opening, a first circuit including a heat generating element, and at least one blower device. The main body includes a first chamber accommodating the first circuit and open at the first opening, and a second chamber adjacent to the first chamber and open at the first opening and the second opening. When the door closes the first opening, the door closes the first chamber and communicates the second chamber with the outside via a door opening of the door. The blower device is disposed at least one of positions at the door opening, near the door opening, at the second opening, and near the second opening, and is configured to introduce and discharge air into/from the second chamber.

Abstract: A water shieldable material comprising a coating layer (2) having a specific density and comprising a specific rubber binder having non-watersolubility and flexibility and a high water absorption polymer particle (4) having a specific diameter and a solid substrate (3) supporting the coating layer, and at least satisfying the following conditions.1. The density of the coating layer is between 0.65 g/cm.sup.3 and 1.00 g/cm.sup.3.2. The weight ratio of the high water absorption polymer particle and the rubber group binder in the main portion, i.e., 90% or more by weight of the coating layer, is between 50% by weight and 90% by weight for the high water absorption polymer particle and between 10% by weight and 50% by weight.3. The diameter of the particles belonging to the weight ratio of between 55% by weight and 95% by weight in the high water absorption polymer particle is between 45 .mu.m and 425 .mu.m.