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US 2019/0348895 A1Published application
Roll bending machine
AssigneeDenso Corporation
InventorsChiaki SASAKI, Kengo TAKESHITA, Hidemasa OTSUBO, Hiroki TAKAHASHI
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Abstract
A roll bending machine includes a roller unit and a tension device. The roller unit rolls and bends a strip member at a rolling rate varying in a width-wise direction of the strip member. The tension device applies tension to the strip member after being rolled by the roller unit in a rolling direction of the strip member, thereby reducing compressive stress which usually result in formation of wrinkles on the strip member. This minimizes the probability of formation of wrinkles on the strip member.
Claims10
A roll bending machine comprising;
- a roller unit which works to roll a strip member at a rolling rate varying in a width-wise direction of the strip member to bend the strip member;
- and
- a tension device which works to exert tension to the strip member after the strip member is rolled.
Dependencies are inferred from the claim text.