Abstract: Included are: a clamp configured to switch between a mounting state in which a tip tool is mounted and a releasing state in which the tip tool is removed; a clamp moving portion configured to move between a first position at which the clamp is in the mounting state and a second position at which the clamp is in the releasing state; a clamp urging portion configured to urge the clamp moving portion to the first position; a case accommodating at least a part of each of the clamp, the clamp moving portion, and the clamp urging portion; a retaining portion configured to retain the clamp moving portion at the second position; and a mounting operation portion configured to receive mounting operation for switching the clamp from the releasing state to the mounting state. When the mounting operation portion receives the mounting operation, the retaining portion cancels retaining of the clamp moving portion at the second position.

Abstract: A stator core is configured by assembling divided cores in an annular shape. Each core includes a yoke part extending in a circumferential direction, and having opposite first and second facing sections. The first facing section includes an inner circumferential protrusion, an outer circumferential protrusion, and a central recess. The second facing section includes an inner circumferential notch, an outer circumferential notch, and a central protrusion. When the cores are assembled, the inner circumferential protrusion faces the inner circumferential notch, the outer circumferential protrusion faces the outer circumferential notch, and the central recess faces the central protrusion, and the outer circumferential protrusion is formed so as to have a width larger in a direction orthogonal to a circumference direction than that of the inner circumferential protrusion.

Abstract: Provided is a structure including a sound absorption section provided in an air flow path on an exhaust side of a fan, traversing a joint portion between a first main housing and a second main housing. The sound absorption section has a double wall structure including an inner wall facing the air flow path and an outer wall spaced outward from the inner wall. A sound absorption member is interposed in a sound absorption chamber between the inner wall and the outer wall of the sound absorption section. A communication hole communicating with the air flow path and the sound absorption chamber is formed in the inner wall of the sound absorption section at a position away from the joint portion.

Abstract: Provided is a vertical power tool superior in assembling performance. The vertical power tool is provided with a power cord, and has body housings 2, 3 that accommodate a motor having a vertically extending axis as a grip portion. A wiring base 30 to which a switch 34 that activates and deactivates the motor, the power cord 35 and a circuit board 36 are attached is attached to upper portions of the body housings 2, 3. A top cover is provided to cover the wiring base 30. A switch operation member is attached to the top cover to switch the switch 34 on and off.