| 摘要 |
A height adjustment unit 10 for raising the height of a chair or bed. The unit 10 comprises a ground engaging support member 12 with an internal thread 18. A height adjustment member 14 is engageable with the thread 18 to be rotatable to a required height. A sheet 56 of a resiliently deformable material extends across the top of the member 14 and has a pattern of openings therethrough to receive and grip the leg of a bed or chair. |
