Fusing apparatus and manufacturing method therefor

A fusing apparatus, comprising:

• a base member;
• a sheet member wrapped around the base member;
• and
• an endless belt looped around the base member and the sheet member, the endless belt comprising an inner peripheral surface arranged to be in contact with the sheet member,
• wherein the sheet member comprises:
• a contact portion comprising a contacting surface, on which the inner peripheral surface of the endless belt contacts the sheet member, and an opposite surface, which is on a side opposite to the contacting surface;
• a first portion extending from a first end of the contact portion, the first portion comprising an inner edge that outlines a first hole;
• and
• a second portion extending from a second end of the contact portion, the second portion being fixed to the base member;
• wherein the base member comprises:
• a first face supporting the opposite surface of the contact portion of the sheet member;
• a second face being a different face from the first face;
• an inner face recessed from the second face to form a recessed portion, in which a peripheral portion around the first hole formed in the first portion of the sheet member is set;
• and
• the fixing portion fixing the sheet member to the base member;
• and
• wherein the fixing portion comprises:
• a first engagement portion protruding from the inner face of the recessed portion of the base member, the first engagement portion being engageable with the inner edge of the first hole;
• and
• a holder provided at the first engagement portion, the holder being configured to hold the peripheral portion around the first hole in the first portion of the sheet member between the inner face of the recessed portion of the base member and the holder.

A fusing apparatus, comprising:

• a base member;
• a sheet member wrapped around the base member;
• a fixing portion fixing the sheet member to the base member;
• and
• an endless member looped around the base member and the sheet member, the endless member comprising an inner peripheral surface arranged to be in contact with the sheet member,
• wherein the sheet member comprises:
• a contact portion, on which the inner peripheral surface of the endless member contacts the sheet member;
• a first portion extending from a first end of the contact portion, the first portion comprising an inner edge that outlines a first hole;
• and
• a second portion extending from a second end of the contact portion, the second portion being fixed to the base member;
• wherein the base member comprises:
• a first face supporting the contact portion of the sheet member;
• a second face being a different face from the first face;
• and
• an inner face recessed from the second face to form a recessed portion, in which a peripheral portion around the first hole formed in the first portion of the sheet member is set;
• and
• wherein the fixing portion comprises:
• a first engagement portion protrudes from the inner face of the recessed portion of the base member, the first engagement portion being engageable with the inner edge of the first hole;
• and
• a holder provided at the first engagement portion, the holder being configured to hold the peripheral portion around the first hole in the first portion of the sheet member between the inner face of the recessed portion of the base member and the holder.