| 摘要 |
1469770 Folding push Chairs LAMONDINE SA 31 Oct 1974 [19 Nov 1973] 53593/73 Heading B7B [Also in Division A4] A push chair has similar side frames connected by cross-members each including one or more hinges. When the side frames are collapsed, the hinges align to allow the collapsed side frames to be swung towards one another about the hinges in the manner of a book. As illustrated, each cross-member has two hinges X and Y; however there may alternatively be a single hinge in each cross-member, Figs. 1-4 (not shown). In the case of those cross-members which are tubular, the hinge shown in Fig. 9 may be employed. Hinge members 16 and 17 linked by a pivot pin 20 are inserted in the tubes whose ends have edges 23, 24 and 21, 22 which abut in the erect and collapsed condition of the chair. In the erect condition, the hinge axes are not aligned so that the chair can be maintained erect by holding the side frames erect. This is effected by the engagement of a spring loaded sleeve 12 with a bracket 13 on a back leg 5. In a modification (not shown), a third frame may be rigidly connected to the centre parts of the cross-members to form a twin push chair.
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