The invention is based on a wiper arm (10) for a windshield wiper, having a fastening part (12) and a joint member (18) that are connected to one another via a swing-down joint (54), and a tension spring (26) is suspended by one end (28) from a suspension device (24) of the joint member (18) and by its other end (30) via a C-shaped bracket (32) in a suspension device (16) of the fastening part (12) and in an operating position presses a wiper blade (34), via a wiper rod (22), against a windshiel...