发明授权
US09381696B2 Stretching unit 有权
拉伸单元

Stretching unit
摘要:
The invention relates to an improved stretching unit characterized, amongst other things by the following: the clip-chain unit is designed such that the forces which are exerted are decoupled and applied in a tilting-free and torque-free manner to the clip-chain unit in order to prevent an increase of the surface pressure between the clip-chain unit and the supporting rail.
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