Refillable tape dispenser with hub

In combination, a refillable tape dispenser for a roll of tape comprising:

• a housing including a side wall,
• a tubular hub having a longitudinal axis defining an axial direction, inner and outer surfaces, a first end fixed to said side wall, said hub comprising
• first and second opposed arcuate flexible portions having distal ends remote from said side wall, said first and second opposed arcuate flexible portions projecting axially from said side wall and having axially extending side surfaces,
• a retaining lug at the distal end of each of said flexible portions, said retaining lugs having remote ends spaced axially from said flexible portions and having cam surfaces, and
• ribs at the distal end of each of said flexible portions generally adjacent said retaining lug, which ribs project radially outward of said flexible portions and have axially extending arcuate bearing surfaces;
• and
• a backcard disposed around said distal ends of said first and second opposed arcuate flexible portions,
• said backcard having opposite major surfaces and edge surfaces between said major surfaces defining first and second chevron-shaped openings between said major surfaces, said edge surfaces defining each of the openings including generally parallel end surface portions, two pairs of opposite parallel surface portions disposed at obtuse angles with respect to each other and defining outer portions of the openings, and concave arcuate surface portions joining said pairs of opposite parallel surface portions to each other and defining generally circular central portions of the openings,
• said arcuate surface portions being positioned generally adjacent said bearing surfaces of said ribs so that the surface area of said dispenser which impacts the surfaces defining said chevron-shaped openings is increased to thereby restrict the damage to the backcard particularly at the intersection between an end surface portion and an opposite parallel surface portion.

A refillable tape dispenser comprising:

• a housing including a side wall, and
• a hub having a longitudinal axis defining an axial direction, inner and outer surfaces, a first end fixed to said side wall, said hub comprising:
• first and second opposed flexible portions having distal ends remote from said side wall, said first and second opposed flexible portions projecting axially from said side wall, said flexible portions having axially extending side surfaces,
• a retaining lug at the distal end of each of said flexible portions, the retaining lugs having remote ends spaced axially from said flexible portions, and
• ribs at the distal end of each of said flexible portions which project radially outward of said flexible portions and have axially extending arcuate bearing surfaces.