Patent ID: 9140043
Filing Date: 2015-09-22
Classification: E05D,E05F,E05Y,Y10T

Abstract:
1. A hydraulic hinge buffer assembly for a door comprising: a fastening device, the fastening device having a holding mount and a pivot block, the holding mount having a front side, the pivot block detachably connected to the front side of the holding mount and having a rear side, a front side, a top face, a bottom face, a chamber longitudinally formed through the top face and the bottom face of the pivot block near the front side of the pivot block, and a driving recess transversally formed through the rear side of the pivot block and communicating with the chamber; a buffering device, the buffering device mounted in the fastening device and having a pivot pin and a piston element, the pivot pin rotatably mounted in the chamber of the pivot block and having an upper end extending out of the top face of the pivot block, a lower end extending out of the bottom face of the pivot block, a middle, an abutting face formed in the middle of the pivot pin, and at least one holding hook formed on and protruding from the pivot pin adjacent to the abutting face, the piston element mounted in the driving recess of the pivot block between the holding mount and the pivot pin, extending in the chamber of the pivot block, abutting the pivot pin and having a space formed between the piston element and the driving recess of the pivot block to enable oil to flow in the space, and a pushing piston abutting and engaging with the pivot pin, the pushing piston having a front end, a pressing face formed on the front end of the pushing piston and selectively abutting the abutting face of the pivot pin, and at least one engaging hook axially formed on and protruding from the pressing face and engaging with the at least one holding hook of the pivot pin; and a clamping device, the clamping device connected to the buffering device to rotate relative to the fastening device and having two clamping panels connected to each other beside the pivot block to enable the clamping device to rotate with the pivot pin relative to the fastening device, wherein the piston element includes a spring, and when the pivot pin is rotated relative to the pivot block, the pushing piston is moved toward the holding unit to compress the spring of the piston element.