FILM TRANSPORT METHOD, FILM STRETCHING METHOD, FILM TRANSPORT DEVICE, FILM STRETCHING DEVICE, AND TRANSPORT BELT

To provide a film transport method for transporting a film in a wave-like loosened state while suppressing deformation at edges of the film, a film stretching method for stretching the film transported by the film transport method, a film transport device suitably used in the film transport method, a film stretching device suitably used in the film stretching method, and a transport belt suitably for used in the film transport method.SOLUTION: In transporting a film using a film transport system including two pairs of transport belts, each with a belt body and a plurality of pinching units on the belt body, and a guide unit, when the film is transported in a state where the film is held by a pair of pinching units of the pair of transport belts, and, in a case where a position at which the film is started to be pinched, as defined by the guide unit, is a pinching position, a rate of engagement of the pair of pinching units located immediately after the pair of pinching units in the pinching position is to be within a predetermined range.SELECTED DRAWING: Figure 3 【課題】フィルム端部での変形を抑制しつつ、フィルムを波状に弛んだ状態で搬送できるフィルム搬送方法と、当該フィルム搬送方法により搬送されるフィルムを延伸するフィルム延伸方法と、前述のフィルム搬送方法に好適に用いられるフィルム搬送装置と、前述のフィルム延伸方法に好適に用いられるフィルム延伸装置と、前述のフィルム搬送方法において好適に用いられる搬送ベルトとを提供すること。【解決手段】それぞれ、ベルト体と、ベルト体上の複数の挟持部とを備える、一対の搬送ベルトを２組と、ガイド部と、を備えるフィルム搬送装置を用いてフィルムを搬送する際に、一対の搬送ベルトが有する一対の挟持部によりフィルムを挟持した状態で、フィルムを搬送し、ガイド部により規定されるフィルムの挟持を開始する位置を挟持位置とする場合に、挟持位置の一対の挟持部の直後に位置する一対の挟持部の噛み合い率を所定の範囲内とする。【選択図】図３