US 11,667,487 B2
Emergency stop cutting mechanism for a web rewinding device
Stephen E. Silva, Waltham, MA (US); and Gregory Mercurio, Billerica, MA (US)
Assigned to Tecnau, Inc., North Andover, MA (US)
Filed by Tecnau, Inc., Billerica, MA (US)
Filed on Apr. 5, 2021, as Appl. No. 17/222,124.
Application 16/655,378 is a division of application No. 15/430,289, filed on Feb. 10, 2017, granted, now 10,464,769, issued on Nov. 5, 2019.
Application 17/222,124 is a continuation of application No. 16/655,378, filed on Oct. 17, 2019, granted, now 10,968,065.
Prior Publication US 2021/0323784 A1, Oct. 21, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B65H 26/00 (2006.01); B65H 26/02 (2006.01); B26D 5/08 (2006.01); B26D 7/26 (2006.01)
CPC B65H 26/00 (2013.01) [B26D 5/086 (2013.01); B26D 7/2614 (2013.01); B65H 26/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A web-cutting mechanism comprising
a housing located upstream in a direction of motion of a web from a web roll that winds the web thereonto;
a slide mounted in the housing, the slide guiding a shuttle assembly having a blade, in a cross-web direction that is transverse to the direction of motion;
a blade driver that selectively biases the shuttle assembly so that the blade engages into a side of the web while tensioned between the web roll and an upstream location;
a release that receives a signal indicating a condition in which separation of the web is desired, and in response thereto, allows the shuttle assembly to be biased by the blade driver; and
wherein the blade is oriented at an angle with respect to the direction of motion that induces a cross-web component of force in response to web motion that moves the blade and shuttle assembly at least part way in the cross-web direction.