Patent ID: 9700145
Date: 2017-07-11
CPC Classifications: A47C,F16B

Claim:
1. A quick assembly armrest connecting device, with the armrest connecting device having two opposite sides respectively connected to a supporting frame and an armrest pad of an arm rest, with the armrest connecting device comprising: a connecting head including a body extending along a first axis, with the body including a first side and a second side opposite to the first side along the first axis, with a side of the body of the connecting head adjacent to the first side including a first protrusive sliding edge extending in a radial direction of the first axis, with the groove of the receiving seat recessed in a radial direction of the second axis to form a first recessed sliding edge, with the first recessed sliding edge extending from the top side to the bottom side, wherein a side of the groove adjacent to the bottom side is recessed in a radial direction of the second axis to form a first recessed engagement edge, with the first recessed engagement edge including a side in communication with the first recessed sliding edge, and with the first recessed engagement edge further including another side located adjacent to the top side and having a first stop edge contiguous to the first recessed sliding edge, with the body including a slot extending from the second side through the first side, with the slot including a first end located adjacent to the second side of the body and a second end located adjacent to the first side of the body, with a width of the first end of the slot being larger than a width of the second end of the slot to form a stepped structure, with the slot receiving an engagement block and an elastic element, with the engagement block located adjacent to the first side of the body and selectively protruding beyond an outer face of the body adjacent to the first side, with the elastic element located adjacent to the second side of the body and abutting the engagement block; and a receiving seat including a groove extending along a second axis, with the groove including an opening, with the groove further including a top side formed on a side thereof adjacent to the opening, and with the groove further including a bottom side spaced from the top side along the second axis, with a positioning groove defined in the bottom side of the groove of the receiving seat and extending away from the top side along the second axis, wherein the armrest connecting device is movable between a separated position and an assembled position, wherein when the armrest connecting device is in the separated position, the connecting head is separated from the receiving seat, wherein when the armrest connecting device moves from the separated position towards the assembled position, the first axis is parallel to the second axis, the connecting head moves rectilinearly along the second axis towards the receiving seat and inserts the body into the groove, wherein after the connecting head abuts the bottom side of the groove, the connecting head moves rectilinearly in a radial direction of the second axis relative to the receiving seat, moving the armrest connecting device to the assembled position, wherein the engagement block is inserted into the positioning groove when the armrest connecting device is in the assembled position, and wherein when the armrest connecting device moves from the separated position towards the assembled position, the first protrusive sliding edge slides and aligns with the first recessed sliding edge, and wherein when the armrest connecting device is in the assembled position, the first protrusive sliding edge is inserted into the first recessed engagement edge.