WE CLAIM:
[Claim 1]
A propeller fan, comprising:
a shaft part provided along a rotation axis; and
a blade provided outside an outer circumference of the shaft part,
the blade including
a basal part connected to the shaft part,
a first part positioned either at the basal part or closer to an outer circumference of the propeller fan than is the basal part and away from the rotation axis by a distance r1,
a second part positioned away from the rotation axis by a distance r2 that is longer than r1,
a third part positioned away from the rotation axis by a distance r3 that is longer than or equal to r2, and
a tip part positioned at an outer circumferential end of the blade and away from the rotation axis by a distance rt that is longer than r3,
a relationship expressed as (92 - 01) / (r2 - M) > (0t - 03) / (rt - r3) > 0 being satisfied, where 01 denotes a warping angle of the blade in the first part, 02 denotes a warping angle of the blade in the second part, 03 denotes a warping angle of the blade in the third part, and 0t denotes a warping angle of the blade in the tip part. [Claim 2]
The propeller fan of claim 1, wherein
a warping angle of the blade between the first part and the second part increases, as a distance from the rotation axis increases, and
a warping angle of the blade between the third part and the tip part either increases or remains constant, as the distance from the rotation axis increases. [Claim 3]
The propeller fan of claim 1 or 2, wherein a relationship expressed as r2 = r3 is satisfied. [Claim 4]

The propeller fan of any one of claims 1 to 3, wherein a relationship expressed as r3 < 0.9 x rt is satisfied. [Claim 5]
The propeller fan of any one of claims 1 to 4, wherein, when a relationship between distances from the rotation axis and warping angles of the blade is expressed in a graph, at least a part of the graph that corresponds to a section between the first part and the second part is downwardly convex in a warping-angle axis. [Claim 6]
The propeller fan of any one of claims 1 to 5, wherein a warping angle of the blade between the third part and the tip part either linearly changes or remains constant, as a distance from the rotation axis increases. [Claim 7]
An outdoor unit for an air-conditioning apparatus, the outdoor unit comprising the propeller fan of any one of claims 1 to 6.