SEALING UNIT - TETRA LAVAL HOLDINGS & FINANCE

Title:

SEALING UNIT

Document Type and Number:

WIPO Patent Application WO/2003/047978

Kind Code:

A1

Abstract:

A sealing unit for enhancing sanitation and flap moldability of a packaging container comprising a heat seal jaw, a heat seal bar (29) having a working surface, provided with two heaters arranged in parallel and being fixed to the heat seal jaw, a counter jaw disposed oppositely to the heat seal jaw, a counter rail (28) having a working surface and being fixed to the counter jaw, a drive means for advancing&sol retracting the heat seal jaw and the counter jaw relatively, a heating means for actuating the heaters while clamping a packaging material by the working surface of the heat seal bar and the working surface of the counter rail, and a cutter section comprising a cutter (51) disposed at the position of two heaters and a resilient counter cutter (53) disposed oppositely to the cutter (51), characterized in that the counter cutter (53) is held by a holding part (52) provided on the working surface of the heat seal bar or the counter rail and projecting from the working surface thus held.

Inventors:

YANO KEIJI (JP)
YOSHIDA KOZO (JP)
YANO TAKASHIGE (JP)

Application Number:

PCT/JP2002/012622

Publication Date:

June 12, 2003

Filing Date:

December 03, 2002

Export Citation:

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Assignee:

TETRA LAVAL HOLDINGS & FINANCE (CH)
YANO KEIJI (JP)
YOSHIDA KOZO (JP)
YANO TAKASHIGE (JP)

International Classes:

B26D7/20; B29C65/00; B29C65/02; B65B51/24; B29C65/74; B65B51/10; B65B51/30; (IPC1-7): B65B51/10; B65B9/00

Foreign References:

JPH08230834A	1996-09-10
JPS62501902A	1987-07-30
FR2690412A1	1993-10-29

Other References: