Patent attributes
A height-adjustable armrest for a chair includes a body, a coupling seat, and an adjusting device mounted to the coupling seat. The body includes an arm support section for supporting an arm of a user. The body further includes a tubular section having a vertical slot with a plurality of vertically spaced positioning grooves. The coupling seat includes a longitudinal hole so as to be mounted around the tubular section of the body. The adjusting device includes a push button and a positioning member having a positioning section that is releasably and selectively engaged in one of the positioning grooves. The positioning section of the positioning member is disengaged from the positioning grooves when the push button is pushed, allowing adjustment of a height of the body.
