Device for gripping and pulling softened plastic sheet at front and rear edges to be moldingly formed

Dispositif pour serrer et traîner, par les bords avant et arrière, une feuille en matière plastique ramollie destinée à être formée

Vorrichtung zum vorder- und rückseitigen Greifen und Vorwärtsbewegen einer erweichten, zu formenden Kunststoffolie

Abstract

A device for gripping and pulling a length of thermoplastic sheet (S) softened to be moldingly formed at the front and rear edges, which are otherwise inevitably made to be concave, so as to hold said edges substantially straight, the device comprising at least two pairs of lower and upper gripping members (20, 30) arranged to be vertically movable so as to grip the above front and rear edges, and two pairs of pull levers (23, 33) each cooperating with one of the pair of lower and upper gripping members (20, 30) so as to grip the front and rear edges in advance of the gripping by the gripping members and pull to straighten the concaved edges which are then gripped by the gripping members.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S62161523-AJuly 17, 1987Asano Kenkyusho:KkSheet tension device of cut sheet-thermal molding machine

NO-Patent Citations (1)

    Title
    PATENT ABSTRACTS OF JAPAN vol. 12, no. 1 (M-656)(2848) 06 January 1988, & JP-A-62 161523 (ASANO KENKYUSHO) 17 July 1987,

Cited By (0)

    Publication numberPublication dateAssigneeTitle