US 12,230,300 B2
Disc drive suspension including load beam having different cross-sectional shapes at welded and non-welded parts thereof
Sosuke Kurebayashi, Yokohama (JP); Yohei Mitsumori, Yokohama (JP); and Naoki Iwamoto, Yokohama (JP)
Assigned to NHK SPRING CO., LTD., Yokohama (JP)
Filed by NHK SPRING CO., LTD., Yokohama (JP)
Filed on Jun. 1, 2021, as Appl. No. 17/335,472.
Claims priority of application No. 2020-097086 (JP), filed on Jun. 3, 2020.
Prior Publication US 2021/0383829 A1, Dec. 9, 2021
Int. Cl. G11B 5/48 (2006.01)
CPC G11B 5/4833 (2013.01) [G11B 5/484 (2013.01); Y10T 29/49025 (2015.01)] 5 Claims
OG exemplary drawing
 
1. A disc drive suspension with a load beam and a flexure, wherein the load beam comprises:
a load beam main body;
welding parts by which the flexure and the load beam main body are fixed to each other;
a pair of flange bending parts formed at respective sides of the load beam main body, the flange bending parts including first bending parts extending in a length direction of the load beam main body, and the flange bending parts bending in a first direction along a thickness direction of the load beam main body;
a second bending part formed between the flange bending parts, the second bending part extending in a width direction of the load beam main body, and the second bending part bending in the first direction;
a first cross-section part extending in the width direction through the welding parts, the first cross-section part being warped up in a second direction toward the flange bending parts; and
a non-welded second cross-section part extending in the width direction along the second bending part through a position different from a position of the welding parts, the non-welded second cross-section part not passing through the welding parts or any other welding part,
wherein warping up in the second direction of the non-welded second cross-section part in a vicinity of the flange bending parts is suppressed during formation of the second bending part, whereby the non-welded second cross-section part has a lesser height difference and a flatter shape as compared to the first cross-section part.