Patent ID: 8167600
Filing Date: 2012-05-01
Classification: B29C,B29D,B29K,B65H

Abstract:
1. An apparatus for producing a polymer film, comprising: a tenter type processing part comprising a plurality of pin sheets and a plurality of pins provided for individual pin sheets, wherein the tenter processing part comprises a film end fixing type tenter configured to perform a treatment of a polymer film or a polymer precursor film and including a device holding film ends at both ends in a width-wise direction of the film by piercing the both ends of the film with the pins and feeding the film while being stretched tightly in the width-wise direction or a feeding direction, and a hold down brush roll configured to press the film against the pins so that the pins pierce through the film and disposed at a location of the apparatus where the film meets the pins so that the pins pierce through the film, wherein each of the pin sheets comprises a pin pedestal on which the pins stand and a high part that is higher than the pin pedestal and provided at an outer side of the pin sheet relative to the pin pedestal and in the width direction, and the high part is configured to contact the film so that the film does not contact the pin pedestal when the film is pressed with said hold down brush roll and pierced with the pins.