Method for the manufacturing of a soy protein-based preparation comprising hydration of soy proteins and thickener agent in two different recipients which are combined and homogenized with subsequent acidification, and soy protein-based preparations obtained by said method, and use of said preparations to be introduced in acidic products. The planter cage frame has downwardly extending legs with distal ends that are received on an inner peripheral ledge of the container. The seat bottom is pivotally connected at forward locations by a linkages extending to additional floor locations such that pivoting of the seatback results in slaved pivoting and combined displacement of the seat bottom between upright design and forward folded positions. The elongate member substantially surrounds the collet in a first position and is substantially separated from the collet in a second position thereby moving said arms between said closed state and said open state.