| 摘要 |
A seat armrest includes a lower sleeve, an upper sleeve, a driving device, and an adjustable armrest piece. The lower sleeve includes a connecting portion, an inner support portion, and a cover. A stopping device is protruded from the shaft hole towards the axis of the shaft hole. The upper sleeve includes an outer support portion, an opening portion, two slide rails, a partition, and a driven device. The driving device includes a directing frame, a slide plate, a first contact end, and a second contact end. The armrest piece includes a lower slide cover, a slide cover and a press button, which has a release position and a lock position that enables the user to release or lock the driven device and the stopping device, in turn to adjust the height between the inner and outer support portions.
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