| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary handle of a handrail for a bathtub in which a knob part fits the size and shape of a hand of a wide range of an operator, and which can be surely and strongly gripped without giving oppressive feeling and stress locally in the hand of the operator.SOLUTION: A handle 1 includes a knob part 2 which is mounted on an outer periphery of a shaft member 4 and which is rotated by a hand of an operator. The knob part 2 includes: a plurality of substantially hemispherical-shaped protrusions 21 which protrude outward in a radial direction of the shaft member 4; a plurality of recesses 22 which are recessed inward in the radial direction of the shaft member 4; and a bulging part 23 which protrudes outward in an axial direction of the shaft member 4 in such a manner that it comes in pressure-contact with a palm of the operator when the operator grips the knob part 2. The protrusions 21 and the recesses 22 are arranged alternately in the peripheral direction of the shaft member 4 on an outer peripheral part 10 of the knob part 2, and outer peripheral surfaces 211 of the protrusions 21 and outer peripheral surfaces 221 of the recesses 22 are formed by a curved surface continuing with each other. |
