Reel member, film housing body, and method for manufacturing reel member
AssigneeDexerials Corporation
InventorToyoji Yamazaki
Life of this patent
Estimating the term…
Abstract
There is provided a new and improved reel member and a new and improved reel housing body that can suppress surface runout and accordingly suppress falling-off of an adhesive film, the reel member (1) including: a winding core section (2) around which an adhesive film is windable; and a flange section (3) provided on each of both end portions in a direction of a rotation axis of the winding core section, in which the winding core section and the flange section are provided separately from each other, and an amount of surface runout of the flange section is a value within a range of ±0.2 mm. For example, a diameter of the winding core section and a diameter of the flange section may satisfy a predetermined mathematical formula.
Claims18
A reel member comprising:
- a winding core section around which an adhesive film is wound;
- and
- a flange section provided on each of both end portions in a direction of a rotation axis of the winding core section,
- wherein the winding core section and the flange section are provided separately from each other, and
- an amount of surface runout of the flange section is a value within a range of ±0.2 mm,
- wherein a diameter of the winding core section and a diameter of the flange section satisfy Mathematical Formula (1-1) below,
- D/F≥0.005*F−0.38 (1-1),
- where D is measured in mm and represents the diameter of the winding core section, and F is measured in mm represents the diameter of the flange section,
- wherein the winding core section and the flange section satisfying Mathematical Formula (1-1) provides for the amount of surface runout of the flange section being the value within the range of ±0.2 mm,
- wherein a diameter of the winding core section is more than or equal to 40 mm, and
- wherein a diameter of the flange section is more than or equal to 135 mm.
A reel member comprising:
- a winding core section around which an adhesive film is wound;
- and
- a flange section provided on each of both end portions in a direction of a rotation axis of the winding core section,
- wherein at least one or more of the winding core section and the two flange sections are a molded product, and
- an amount of surface runout of each of the flange sections is a value within a range of ±0.2 mm,
- wherein a diameter of the winding core section and a diameter of the flange section satisfy Mathematical Formula (2-1) below,
- D/F≥0.005*F−0.38 (2-1)
- where D is measured in mm and represents the diameter of the winding core section, and F is measured in mm represents the diameter of the flange section,
- wherein the winding core section and the flange section satisfying Mathematical Formula (2-1) provides for the amount of surface runout of the flange section being the value within the range of ±0.2 mm,
- wherein a diameter of the winding core section is more than or equal to 40 mm, and
- wherein a diameter of the flange section is more than or equal to 135 mm.
Dependencies are inferred from the claim text.