Patch fitting with auto-return function

A patch fitting with auto-return function for a glass door, comprising:

• a clamping seat having a seat body for clamping a top edge of the glass door and a shaft;
• wherein the seat body has an oil chamber for storage of hydraulic oil and a shaft hole in fluid communication with and perpendicular to the oil chamber, and the shaft is pivotally inserted into the shaft hole of the seat body and has a shaft body with an end protruding out of the shaft hole and an eccentric cam provided on the shaft body;
• a damper installed in the oil chamber and contacted with the eccentric cam of the shaft for being pushed by the eccentric cam to press the hydraulic oil contained in the oil chamber to provide a damping resistance in response to a sweeping movement of the glass door;
• and
• a misalignment adjuster including a mounting plate having a center provided with a concave space and a periphery provided with a plurality of adjustment holes communicated with the concave space, a plurality of adjustment members each moveably mounted in one of the adjustment holes, and an adjustment plate, which is smaller in dimension than the concave space, arranged in the concave space of the mounting plate, connected with the end of the shaft body of the shaft and stopped by at least one of the adjustment members, such that a position of the clamping seat is adjustable by movements of the adjustment members.