Scraper disc

Abstract: A potato scraper disc (1) provided with scraper elements (2), which disc is provided with a number of slots (3) which extend substantially from an axis (7) of the disc up to the edge (8) of the disc, each scraper element (2) being formed by a wall portion (4) which adjoins the slot (3) and is bent upwards, the lower edge (5) of the wall portion lying approximately at the level of the disc surface (6). The scraper elements (2) preferably have positions which deviate from the radial lines. The potatoes scraped with this scraper disc have a smoother surface and are scraped within a shorter period of time. <IMAGE>

Description: The invention relates to a rotatably driven scraper disc with scraper elements for scraping root vegetables, such as potatoes, in a kitchen machine, which disc is provided with a number of slots which run substantially from a central axis of the disc up to the edge of the disc, each scraper element being formed by a wall portion which has a free side adjoining the slot and which is bent out of a disc surface. A scraper disc as mentioned in the opening paragraph is known from FR-A-2 203 611. The known scraper disc comprises a number of slots, which are bounded by a first bent wall portion having a first edge and by a second bent wall portion having a second edge. The first and second edges are vertically separated over a distance which corresponds to the peeling depth of the known scraper disc. Potatoes scraped with the known scraper disc have a comparatively rough surface, so that their appearance is not particularly attractive. The invention has for its object to provide a scraper disc whereby the surface of a potato after scraping is at least reasonably smooth. The scraper disc according to the invention is characterized in that an edge of said free side of the wall portion, which is closest to said disc surface, lies approximately at the level of said disc surface. Preferably, each scraper element encloses an angle of between 20° and 70° with a radial line through a point of the scraper element which is situated closest to the central axis. The potatoes are more effectively forced to rotate in all directions during scraping by this, which shortens the scraping process. The invention will be explained in more detail below with reference to a drawing in which Fig. 1 is a plan view of a scraper disc according to the invention, and Fig. 2 is a cross-section on an enlarged scale through a scraper element of the scraper disc of Fig. 1. The scraper disc 1 is provided with a number of scraper elements 2 (for example, eight), which are obtained by first stamping slots 3 into a disc-shaped metal plate, after which the rear wall portion 4 of each slot seen in the direction of rotation of the disc is bent upwards. The wall portion 4 is bent upwards so far that the lower edge 5 of the wall portion lies approximately at the level of the disc surface 6. The scraper elements are elongate and extend substantially from the axis 7 of the disc up to the circumferential edge 8 of the disc. It was found to be advantageous, furthermore, not to have the scraper elements 2 run in radial direction, but to have them enclose an angle with the radius, i.e. each scraper element encloses an angle α of between 20° and 70° with a radial line 9 through a point 10 of the scraper element which is closest to the axis 7. It is found that the potatoes will more effectively revolve in all directions as a result, so that the potatoes are scraped within a shorter period. Good results are obtained with an angle of approximately 35°.

Claims: A rotatably driven scraper disc (1) with scraper elements (2) for scraping root vegetables, such as potatoes, in a kitchen machine, which disc (1) is provided with a number of slots (3) which run substantially from a central axis (7) of the disc (1) up to the edge (8) of the disc (1), each scraper element (2) being formed by a wall portion (4) which has a free side adjoining the slot (3) and which is bent out of a disc surface (6), characterized in that an edge (5) of said free side of the wall portion (4), which is closest to said disc surface (6), lies approximately at the level of said disc surface (6). A scraper disc as claimed in Claim 1, characterized in that each scraper element (2) encloses an angle (α) of between 20° and 70° with a radial line (9) through a point (10) of the scraper element which is situated closest to the axis (7).

Inventors: MUGGE JAN, PATER AALDERT JAN, MUGGE, JAN, PATER, AALDERT JAN
Applicants: PHILIPS ELECTRONICS NV, PHILIPS ELECTRONICS N.V.
Application year: 1991
Main classification: A47J17
IPC codes: A47J17