| 摘要 |
A convertible car seat that can take on a variety of configurations. These include seat, shelf, document case and flat configurations. The convertible seat is made up of two surfaces, one of a seat and one of a backrest. These are supported by two frames which are symmetrical with respect to a horizontal frame. The frames are made of rigid elements. The elements are connected by joints at each end to create a unit of four axles which permit folding the rigid elements to various configurations.
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