Roller apparatus

A roller apparatus which supports an opening/closing object and moves a roller along a rail, the roller apparatus comprising:

• a bracket attached to the opening/closing object;
• a pin provided to the bracket and protruding in a direction crossing a moving direction of the opening/closing object;
• a cable end rotatably attached to the pin and fixed to an end of a cable which pulls the opening/closing object;
• a bush provided between the pin and the cable end to prevent the pin and the cable end from coming in contact with each other;
• at least one retaining protrusion provided at a tip side of the pin and protruding from a side surface of the pin in a radially-outward direction of the pin;
• a notch provided in the bush to expose a portion of the inner wall outward to allow passage of the retaining protrusion;
• and
• an abutting portion provided to the bush to cover another portion of the inner wall, the abutting portion on which the retaining protrusion abuts from an axial direction of the pin, wherein
• the cable end is provided with an inner wall forming an insertion hole,
• the inner wall has:
• a pair of first inner wall portions symmetrically disposed with respect to a center line of the insertion hole, the first inner wall portions facing each other and each having a semi-circular cross-section;
• and
• a pair of second inner wall portions symmetrically disposed with respect to the center line of the insertion hole, the second inner wall portions facing each other and each having a semi-circular cross-section, the second inner wall portions intervening between the first inner wall portions,
• the second inner wall portions are smaller in curvature radius than the first inner wall portions,
• the first inner wall portion allows passage of the retaining protrusion,
• the second inner wall portion prevent the passage of the retaining protrusion.