| 摘要 |
A folding platform includes a base, first folding flap, lift arm, and lift arm linkage. The first folding flap is rotatably connected with the base and facilitates the folding of a food item placed on the folding platform. The lift arm linkage is rotatably connected with the base and the lift arm to operatively lift the lift arm and allow the lift arm to rotate in a first rotational direction, and includes a spring that engages the lift arm linkage and the lift arm, and biases the lift arm in a second rotational direction opposite the first rotational direction. The lift arm is capable of rotating a first rotational distance, and rotating a second rotational distance greater than the first rotational distance without bending or breaking when the lift arm contacts an obstruction. The lift arm automatically returns to its normal position due to the bias force of the spring. |
| 主权项 |
1. A folding platform for forming a folded food product made from a flexible shell, said platform comprising:
a folding flap pivotally connected to a base, the base having an upper surface, a gap formed along a side of the upper surface of the base that is distal from said folding flap, a mounting block, and at least one mounting tab extending from the base; a lift arm having a body, a back plate extending from the body, and at least one mounting bracket extending from the body, the lift arm being pivotally connected to the base; a lift arm linkage assembly including an engagement wall and a spring engaging the engagement wall and the lift arm back plate, the lift arm linkage assembly being pivotally connected to the mounting block, and to the lift arm; and a pin extending through the at least one mounting tab, the at least one mounting bracket, the lift arm linkage assembly, and the spring, the pin rotatably connecting the base, the lift arm, and the lift arm linkage assembly, wherein said folding platform is adapted to assume a substantially open configuration so as to permit (i) a flexible food product shell to be draped across the folding flap, the lift arm, and the upper surface of said base, and (ii) a food filling portion to be deposited on the shell above the base; wherein the folding flap is adapted to rotate relative to the base so as to cause a side portion of the shell, initially draped across the first flap, to overlay the food filling portion deposited on the base; wherein the lift arm is adapted to rotate about the pin a first rotational distance in a first rotational direction so as to lift the shell from the base for deposit on an ejection track; and wherein the spring is configured to permit the lift arm to rotate about the pin a second rotational distance along the first rotational distance that is greater than the first rotational distance when a force is imparted on the lift arm in the first rotational direction, the spring biasing the lift arm to move in a second rotational direction that is opposite the first rotational direction when the force is removed from the lift arm. |
