Reel member and adhesive film winding body
AssigneeDexerials Corporation
InventorsKazunori Hamazaki, Hiroyuki Nakamura, Tomohisa Kawai
Life of this patent
Estimating the term…
Abstract
Provided is a reel member and an adhesive film winding body capable of suppressing sticking and blocking and preventing falling off. A real member includes: a winding core 3 around which an adhesive film 2 is to be wound; a pair of reel flanges 4 provided on both sides of the winding core 3; and a plurality of ribs 5 formed on an inner surface 4a of the reel flange 4, protruding from the inner surface 4a, and extending from the center side to the peripheral edge side of the reel flange 4, wherein in the rib 5, a rib top width W1 in contact with the adhesive film 2 is narrower than a rib base width W2 in contact with the inner surface 4a in cross-sectional view.
Claims23
A reel member, comprising:
- a winding core around which an adhesive film is to be wound;
- a pair of reel flanges provided on both sides of the winding core;
- and
- a plurality of ribs formed on an inner surface of at least one reel flange of the pair of reel flanges, protruding from the inner surface, and extending from a center side to a peripheral edge side of the at least one reel flange,
- wherein at least one rib of the plurality of ribs has a top portion and a base portion and a width of the top portion of the at least one rib in contact with the adhesive film is narrower than a width of the base portion of the at least one rib in contact with the inner surface in cross-sectional view,
- and wherein the at least one rib of the plurality of ribs extends to a position facing the winding core, and
- wherein the at least one rib comprises a section capable of facing the wound adhesive film and a section extending to a position facing the winding core, wherein a height and cross-sectional shape of the section capable of facing the wound adhesive film are different from a height and cross-sectional shape of the section extending to a position facing the winding core.
Dependencies are inferred from the claim text.