Patent ID: 7322454

Claim:
A fluid transmitting device with a lock-up clutch, comprising: a turbine impeller having a shell; and a lock-up clutch including: a clutch piston; an annular spring accommodation groove formed in the clutch piston to accommodate a plurality of annularly-arranged damper springs; a plurality of first power transmission claws inserted between adjacent ones of the damper springs and secured to the clutch piston; a plurality of second power transmission claws inserted between adjacent ones of the damper springs so as to face the first power transmission claws, and having a plurality of support portions connected to an outer peripheral surface of the shell of the turbine impeller via a weld formed by laser beams, wherein the weld is formed into a linear shape extending along a circumferential direction of the shell so that the weld is melted by the laser beams to extend from an outer surface of the support portion to an inner peripheral surface of the shell.