| 摘要 |
A safety arrangement in food processing cutting appliances of the kind which comprise a stand (1), a container (2) which accommodates the foodstuff or foodstuffs to be prepared, a container lid (3), and one or more knives (4) mounted at the bottom of the container (2) and driven by a shaft (5) which extends vertically up through the container (2) bottom. The invention is characterized in that the stand (1) includes an upstanding arm (8) which when the appliance is positioned for use is rotatable about a vertical shaft (9), wherein the upper part of the arm (8) is curved to form a horizontal, or generally horizontal part (10), which as the arm is rotated about its vertical rotational axis (9) is rotated inwardly over the container lid (3) to a given position (14) thereon when the container (2) and lid (3) are placed on the appliance stand (1); in that the arm (8) can be moved vertically to a limited extent against the force exerted by a spring (11) which strives to move the arm (8) downwards; in that the level at which the given position (14) on the lid (3) when the container (2) and the lid (3) fitted thereto are placed on the stand (1) is higher than that part (15) of the horizontal part (10) of the arm (8) which is intended to come into contact with the upper surface of the lid (3) as the arm (8) is rotated inwards, wherewith the arm (8) is moved vertically as it is rotated in over the lid (3); in that when the horizontal arm part (15) lies against the upper lid (3) surface in the manner intended, the arm (8) will be located in a predetermined rotational position in relation to the stand (1) and also at a predetermined height position; and in that a switch (18) is mounted in the stand adjacent the arm and is intended to coact with the arm (8) and to detect when the arm (8) is located in a predetermined rotational position and height position, this arrangement being such that the switch (18) is not activated, so as to enable the motor of the appliance to be started, until the arm (8) is located in the predetermined positions. The invention also includes a mechanical stop means (23-27) which coacts with the arm (8) to stop the motor drive shaft (30). <IMAGE> |
