| 摘要 |
PURPOSE:To aim at simplification in structure and the promotion of easiness in molding, by constituting a body from an inverse hat sectional part and a hat sectional part having the specified constitution each, in case of a device which is provided with a hook part consisting of the molded steel plate-make body and a U-shaped bar member. CONSTITUTION:A traction hook 1 is constituted of a steel plate-make body 2 by means of press forming and a hook part 3 consisting of a U-shaped bar member being tightly attached to this body 2 by welding. At the abovementioned, in a front part of the body 2, there are formed with a bottom part 14 holding the hook part 3 inward and an inverse hat sectional part 16 having a flange pat 15 installing a setting hole 14. In addition, in a rear part of the body 2, there are formed with a flange-form bottom part 17 holding a bottom part of the hook part 3 in succession of the bottom part 13 of the sectional part 16 and a hat sectional part 20 consisting of a protuberance 19 which protrudes as holding the hook part 3 outward from the inside of this bottom part 17 and forms a setting hole 18 at its top. |
