| 摘要 |
Slide bolts function as guide devices, and are fixed to both sides of the chair back support. Supplementary guiding is provided by cone plates and the two bodies of the slide hinge. The method channels of the slide hinge are forked at their upper part, and are formed as hooks facing downwards, into which the slide bolts can be engaged. The back support of the chair is supported by its slide bolts anc grooves. Further support is furnished by other slide bolts which regulate at the same time any additional turning of the back support. In the groove in the slide hinge body lower part is a further branching for the second slide bolts which are in the groove when the chair is in its normal sitting position. The slide hinge body structures are fixed to the chair seat lower part by bolts, and the chair back support is freely movably manually. |
