| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame structure composing both sides of a cushion frame absorbing a variation in distance between frame members or in lengths of shafts in connection rods connecting both frame members. SOLUTION: The frame members composing both sides of the cushion frame are frame structures connected to each other by the connection rods. The frame members are provided with connection rods 30 spanning facing inside surfaces in both the frame members 16, bushings 32 which are fixed beforehand to the inside surfaces of the frame members and, respectively welded finally to both end part of the connection rods, and engaging parts 32c each engaging with both end parts of the connection rods. In addition, an adjusting allowance S is set to allow a relative movement in the axial direction between both engaging parts 32c and both end parts of the connection rods 30. COPYRIGHT: (C)2009,JPO&INPIT
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