Tenter apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorsKiyoshi Fukuzawa, Toshio Higashikawa
Life of this patent
Estimating the term…
Abstract
A right rail and a left rail are constituted of an entrance rail portion, an exit rail portion, and a rail connecting portion. The respective portions of the rails are moved in a film-width direction via a rail attachment and a positioning section. The positioning section is constituted of a lead screw rod and a positioning motor. The respective positioning motors are controlled by a controller. Upon inputting an entrance width and an exit width through a data input section, the controller moves positions of the respective rail attachments and performs orientation so as to decline an orientation axis.
Claims8
A tenter apparatus in which a sheet-form material is preheated while moved, and said sheet-form material is oriented in a width direction thereof after preheating, said tenter apparatus comprising:
- a left film grip for holding a left-side edge of said sheet-form material;
- a right film grip for holding a right-side edge of said sheet-form material, said right and left film grips moving at a same speed;
- a left tenter rail along which said left film grip runs, said left tenter rail being constituted of a left entrance rail portion, a left exit rail portion, and a left rail connecting portion combining these rail portions;
- a right tenter rail along which said right film grip runs, said right tenter rail being constituted of a right entrance rail portion, a right exit rail portion, and a right rail connecting portion combining these rail portions;
- positioning means for changing a width between said right and left tenter rails, said positioning means being independently provided on the respective rail portions and the respective rail connecting portions;
- and
- a controller for controlling said positioning means in accordance with an orienting magnification optionally set, said controller adjusting a distance between said right and left tenter rails so that an orientation axis inclines at an angle of 10° or more and 80° or less relative to a side edge of said sheet-form material.
Dependencies are inferred from the claim text.