Abstract: A back rest member pivotable frontwardly and rearwardly and lockable at a plurality of pivotal positions thereof is provided with a transmission route for transmitting an urging force to urge the back rest member frontwardly, and a break mechanism for breaking the transmission route when the back rest member is in front of a normal pivotal position thereof.

Abstract: A conventional water-in-oil type emulsifying fats and oils food is extruded from a nozzle at a particular shear rate to provide therein split section layers composed of thin water film layers and the like. Accordingly, the food can be readily split even when it is taken out from a refrigerator immediately before use, and prevention of deterioration in quality and improvement of productivity are attained.

Abstract: Precut, solid water-in-oil emulsion compositions are prepared by providing a mold having an outer frame and a plurality of configured partitioning plates disposed within the outer frame. The mold is at least partially filled with a fluid form of the emulsion so as to form precuts in the emulsion corresponding to the partitioning plates. The emulsion is then allowed to set. An extrusion die is advanced into the mold. The extrusion die has grooves configured complimentary to the configuration of the partitioning plates so as to receive the partitioning plates therein. The set emulsion is then discharged from the mold by at least partially passing the extrusion die through the mold so as to discharge the set emulsion with the precuts therein.