Armrest capable of moving forward, backward and rotating sideways

摘要: An armrest assembly with an capable of moving forward, backward and rotating sideways simply by pushing or the to desired direction, includes a propping portion 3 mounted around rectangular column 21 formed at upper end outer tube 2. actuation element 5, which has corners extended resilient pressing portions 51 is internally provided curved recesses, received in displacement space 32, peripherally wavy grooves 33. A limiting 6 having periphery plurality projections 5. The 5 are retained threaded fastener 64 passing through washer 65.