| 摘要 |
The invention relates to a method and a device for reinforcing a hollow section ( 1, 24 ) having a closed periphery, an opening ( 2 ) being produced at its periphery, after which a reinforcing component introduced into the hollow section interior ( 8, 25 ) is joined to the hollow section wall ( 11, 27 ) opposite the opening ( 2 ). In order to reinforce the hollow section ( 1, 24 ) as easily as possible, it is proposed that, at the location of the opening ( 2 ) to be produced, a wall piece ( 7, 23 ), forming the reinforcing component, of the hollow section ( 1, 24 ) be cut out except for a peripheral region, that the wall piece ( 7, 32 ) hanging in one piece on the opening edge ( 9 ) be bent into the hollow section ( 1, 24 ), with the opening ( 2 ) being formed. The length of the wall piece ( 7, 23 ) is dimensioned relative to the width of the hollow section ( 1, 24 ) in such a way that the wall piece ( 7, 23 ), with its free end ( 10, 26 ), at least comes into contact with the opposite hollow section wall ( 11, 27 ), and the free end ( 10, 26 ) is then joined to the hollow section wall ( 11, 27 ).
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