Color cathode ray tube

A color cathode ray tube comprising:

• a shadow mask held in a state of tension applied thereto;
• two mounting apertures provided in the shadow mask or a different member attached to the shadow mask, the different member vibrating following vibration of the shadow mask;
• and
• a vibration damping member penetrating through the two mounting apertures to be attached in a freely movable state to the shadow mask or the different member, the vibration damping member dampening vibration of the shadow mask,
• wherein a protrusion or a swelling portion protruding toward the vibration damping member is provided at a region between the two mounting apertures of the shadow mask or the different member.

A color cathode ray tube comprising:

• a shadow mask held in a state of tension applied thereto;
• two mounting apertures provided in the shadow mask or a different member attached to the shadow mask, the different member vibrating following vibration of the shadow mask;
• a vibration damping member penetrating through the two mounting apertures to be attached in a freely movable state to the shadow mask or the different member, the vibration damping member dampening vibration of the shadow mask;
• and
• a member having an aperture through which the vibration damping member penetrates and attached in a freely movable state to the vibration damping member.

A color cathode ray tube comprising:

• a shadow mask held in a state of tension applied thereto;
• two mounting apertures provided in the shadow mask or a different member attached to the shadow mask, the different member vibrating following vibration of the shadow mask;
• and
• a vibration damping member penetrating through the two mounting apertures to be attached in a freely movable state to the shadow mask or the different member, the vibration damping member dampening vibration of the shadow mask,
• wherein the vibration damping member has two penetrating portions each passing loosely through one of the two mounting apertures, and
• the vibration damping member has an asymmetrical shape with respect to a center position between the two penetrating portions.