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1. JP1996011205 - LATERAL STRETCHING DEVICE OF BELTLIKE BODY

Office
Japan
Application Number 1994150884
Application Date 01.07.1994
Publication Number 1996011205
Publication Date 16.01.1996
Grant Number 3547170
Grant Date 23.04.2004
Publication Kind A5
IPC
B29C 55/08
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
08transverse to the direction of feed
B29L 7/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
7Flat articles, e.g. films or sheets
B29L 28/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
28Nets or the like
CPC
B29C 55/08
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02of plates or sheets
04uniaxial, e.g. oblique
08transverse to the direction of feed
Applicants NIPPON PETROCHEM CO LTD
新日本石油化学株式会社
POLYMER PROCESSING RES INST
株式会社高分子加工研究所
Inventors AIHARA KINTARO
相原 金太郎
KURIHARA KAZUHIKO
栗原 和彦
YAZAWA HIROSHI
矢沢 宏
Agents 石田 敬
辻本 重喜
戸田 利雄
西山 雅也
Title
(EN) LATERAL STRETCHING DEVICE OF BELTLIKE BODY
(JA) 帯状体の横延伸装置
Abstract
(EN)

PURPOSE: To prevent effectively a beltlike body from being detached, by a method wherein at least a pair of pressing rolls pressing the both side fringe parts of the beltlike body against belts each are provided by inclining to the belt and both side fringe parts of the beltlike body are pinched and held among pulleys each and belts each.

CONSTITUTION: Rotational axes 36, 36', 38, 38' of the first and second pressing rolls 34, 34', 35, 35' are inclined to a horizontal plane so that an edge part of a slit film 31 can be pulled into a space between inner circumferential side belts 23, 23' of belts 23, 23' and pulleys 22, 22'. Furthermore, shafts 38, 38' of the pressing rolls 35, 35' are inclined inside so that the pressing rolls 35, 35' press an edge part of the beltlike body 31 against corner parts of the belts 23, 23' by facing on the corner part. In addition, the pressing rolls 34, 34' are inclined also similarly. In the above case two pairs of an upper and lower pressing rolls are provided, but the lower pair of the pressing rolls may be sufficient and skidproof knurl may be provided in the surface of the pressing roll.

COPYRIGHT: (C)1996,JPO


(JA)


【目的】 本発明は帯状体の横延伸装置に関し、帯状体
の外れを効果的に防止できる横延伸装置を実現すること
を目的とする。


【構成】 実質的に同一平面内に配置され、互いに逆方
向に回転する一対のプーリと、これらプーリの各々に掛
け渡された一対のベルトとを具備し、これらプーリおよ
びベルトとによって帯状体の両側縁部を挟持して末広が
りに搬送することにより前記帯状体を幅方向に延伸する
帯状体の横延伸装置において、前記帯状体の両側縁部が
各々プーリとベルトとの間に挟持される前に前記帯状体
の両側縁部を各々ベルトに押し付ける少なくとも一対の
押付ロールを該ベルトに対し傾斜させて設けるように構
成する。


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