Abstract: A robot includes a base. A turnable portion is mounted on the base and turnable about a first axis approximately perpendicular to an installation surface on which the base is disposed. An arm is mounted on the turnable portion and swingable about a second axis parallel to the installation surface. A first motor is accommodated in the turnable portion and moves the turnable portion about the first axis. A first motor includes a body and a protrusion. The body has an axial dimension that is in a direction along an output shaft of the first motor and that is smaller than a perpendicular dimension in a direction approximately perpendicular to the output shaft. The protrusion protrudes from a surface of the body in a direction along the output shaft and is displaced from the output shaft. A second motor moves the arm about the second axis.

Abstract: A robot joint mechanism includes a fixed base, a turnable portion, a first routing member, and a second routing member. The fixed base has a base bottom surface and a side wall. The base bottom surface and the side wall define an inner space. The turnable portion is disposed in the inner space and turnable about a vertical axis approximately perpendicular to the base bottom surface. The first routing member includes a first bent portion bent in a first bending direction along a bottom surface of the turnable portion and routed between the turnable portion and the side wall. The second routing member is routed through a position inner than the first bent portion, and includes a second bent portion bent in a second bending direction different from the first bending direction.

Abstract: A robot includes a turnable base, a lower arm, an upper arm, a space, and a routing member. The turnable base is coupled to a base fixed to an installation surface. The turnable base is turnable about a first axis. The lower arm has a first base end coupled to the turnable base and rotatable about a second axis approximately orthogonal to the first axis. The upper arm has a second base end coupled to the lower arm and rotatable about a third axis approximately parallel to the second axis. The space is disposed in the lower arm and extends in a length direction of the lower arm. The routing member is routed in the space and has at least two bent portions bent in the space.

Abstract: A robot includes a turnable base, a lower arm, an upper arm, first and second spaces, and first and second routing members. The turnable base is coupled to a base fixed to an installation surface, and is turnable about a first axis. The lower arm includes a first base end coupled to the turnable base and rotatable about a second axis approximately orthogonal to the first axis. The upper arm includes a second base end coupled to the lower arm and rotatable about a third axis approximately parallel to the second axis. The first and second spaces are disposed in the lower arm, and face each other and extend in a length direction of the lower arm. The first and second routing members are respectively routed in the first and second spaces, and each include at least two bent portions bent in the first and second spaces.

Abstract: A robot includes: a mounting portion on which a welding torch is mountable; an arm portion having a tip portion, the arm portion swingably supporting the mounting portion at the tip portion; an arm supporting portion having a tip portion, the arm supporting portion supporting the arm portion rotatably around a first rotation axis at the tip portion, the first rotation axis being perpendicular to a swinging axis of the mounting portion; and a feeding device arranged in a space to intersect with an axis line of the first rotation axis, the space being formed between the tip portion and a base end portion of the arm portion along an axis line of the first rotation axis, the feeding device being configured to feed a wire to the welding torch mounted on the mounting portion.