| 摘要 |
A balancing device for work tables, preferably drawing tables, comprises a stand 2, one or more lever arms 7, 8 pivotally mounted on the stand, a work-table top 14 mounted on the lever arm or arms and one or more balancing means for balancing items, including the work- table top, mounted on the stand via the lever arm or arms. The balancing means comprises a telescopic spring means 18 extending between the stand and the lever arm or arms. In order to reduce the risk of misadjustment of the spring means and at the same time quickly and easily carry out the mounting and adjustment operations necessary, each spring means 18 is pivotally journalled at its bottom end 19 on the stand 2 and at its top end on the lever arm 7,8 in one of a number of positions provided along an arcuate line CB, the centre C of which coincides with the lower support point of the spring means. <IMAGE> |
