DEVICE WITH FRAME

In the manufacturing process of a vehicle seat S, deformation of one-end-side frame 6a made of CFRP in a seat cushion frame 2 is suppressed, when a first revolving arm 33 of a rear side link 30 is assembled to the one-end-side frame 6a, by a portion provided with a metallic sector gear 31. In a vehicle seat S having a seat cushion frame 2 and a rear side link 30 including a metallic sector gear 31, a first revolving arm 33 of the rear side link 30 is assembled to the one-end-side frame 6a made of CFRP in the seat cushion frame 2. Furthermore, in order to assemble the first revolving arm 33 to the one-end-side frame 6a, a first shaft pin 61 made of metal is inserted into both a link assembling hole 51 of the one-end-side frame 6a and a pin hole 31b of the sector gear 31 in a state in which the holes 51 and 31b communicate with each other, and the first shaft pin 61 is fixed by welding to the sector gear 31 in a state in which a flange portion 61b is locked to the one-end-side frame 6a.