Futon. Tuesday , February 20th , 2018 - 16:35:50 PM
October of 1991 saw another group of inventors including Mark S. Barton, Kurt J. Bandach and Mark E. Schlichter introduce an interesting concept of a pivoting pawl as they referred to it. This was basically a specially designed block that would hang on the seat section that would engage against a step located on the back rest and using gravitational force influences the pawl to both hang unengaged when the futon is in an upright position and to engage when the seat is lifted and the pawl engages against the step to allow the frame to be operated while standing in front and returns the futon from a bed position back into a seating position. This patent was assigned to August Lotz Co., Inc. who implemented this design into their successful line of futon products. This marked an interesting approach to frame conversion as now the frame was facilitating the movement back into a sofa position by having pawls engage into steps designed into the back rest of the frame.
As a general rule, the longer the warranty on a futon frame the longer the futon manufacturer expect their futon frame to last. The shorter the warranty, the more likely you will be have to repair or replace something. Futons that are well designed, however, often outlast their warranties altogether. A solid hardwood futon frame with ample reinforcements, stress supports and angle brackets might last you 20 years or longer.
When investigating a futon frame consider these three things: 1) Hardwood will tends to be stronger than pinewood, 2) Solid wooden cross members will tend to outlast jointed cross members and 3) The More reinforcement the better. Most modern wood futon frames have six major parts; a left arm, a right arm, a back deck, a seat deck, and two stretcher rails (sometimes called cross rails). The hardware that fasten all of these wooden pieces together are most often made up of an ingenious bolt and barrel nut (dowel nut) system that act very much like little vice clamps that hold the joints in place. This makes futon frames easy to assemble and disassemble which can have many advantages.
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