Patent ID: 7688550

Claim:
A head suspension for a hard disk drive, comprising: a base to be attached to a carriage of the hard disk drive and turned around a spindle; a load beam including a rigid part and a resilient part non-integral to the rigid part, the load beam extending longitudinally from the base to apply load onto a head to write and read data to and from a disk arranged in the hard disk drive; the rigid part having a base end, a front end distal to the base end, a longitudinal direction extending from the base end to the front end, a middle portion between the base end and the front end, and side edges opposing one another in a lateral direction of the rigid part extending from the front end to the base end and along the middle portion, and the base end including a joint portion connected to the resilient part; the resilient part being supported on the base; a flexure having read/write wiring patterns connected to the head, the flexure supporting the head at the front end of the rigid part and the flexure being attached to the rigid part of the load beam; the rigid part having protrusions at the joint portion extending laterally outward of each of the side edges; and reinforcing parts each protruding laterally outwardly from respective ones of the side edges of the rigid part and interconnecting the side edges to respective ones of the protrusions so as to bridge a gap between the protrusions and the side edges, the reinforcing parts having forward ends connected to the side edges at the middle portion of the rigid part, and expanding in width in the lateral direction with increasing distance from the forward ends toward the protrusions.