Planetary gear system for mixer

A - Human Necessities – 21 – C

Patent

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Details

A21C 1/14 (2006.01) B01F 7/30 (2006.01) B29B 7/22 (2006.01) B01F 7/00 (2006.01)

Patent

CA 2271279

A food mixer (10) having a planetary gear system including a center shaft (32) having a center gear (42) mounted thereto, the center shaft (32) being drivingly coupled to a motor (24). The gear system includes an agitator shaft (44) having an agitator gear (46) mounted thereon and being oriented parallel to the center shaft (32) and located such that the agitator gear (46) meshes with the center gear (42). A ring gear (48} having a set of internal gear teeth (50) encircles the center gear (42) and the agitator gear (46) whereby the agitator gear (46) meshes with the ring gear (48). The gear system has a pair of agitator bearings (52, 53) located on the agitator shaft (44) and a top bearing (62) located on the center shaft (32) being vertically displaced from and radially overlapping the pair of agitator bearings (52, 53). A needle bearing (64) located on the center shaft (32) and the top bearing (62) allow the center shaft (32) and the agitator shaft (44) to be placed in close proximity.

La présente invention concerne un mixeur (10) comprenant un système d'engrenage planétaire pourvu d'un axe central (32) lui-même doté d'un engrenage central (42) monté sur l'axe central (32), cet axe étant couplé pour entraînement à un moteur. Le système d'engrenage comprend un axe d'agitateur (44) possédant un engrenage d'agitateur (46) monté sur cet axe, orienté parallèlement à l'axe central (32) et placé de sorte que l'engrenage d'agitateur (46) entraîne l'engrenage central (42). Un engrenage annulaire (48) possédant un ensemble de dents d'engrenage (50) internes entoure l'engrenage central (42) et l'engrenage d'agitateur (46) pendant que ledit engrenage d'agitateur entraîne l'engrenage annulaire (48). Le système d'engrenage comprend une paire de dispositifs d'appui (52, 53) placés sur l'axe d'agitateur (44) et un dispositif d'appui supérieur placé sur l'axe central (32) qui se déplace verticalement depuis la paire de dispositif d'appui d'agitateurs (52, 53) et la recouvre radialement. Un dispositif d'appui d'aiguille (64) placé sur l'axe central (32) et le dispositif d'appui supérieur (62) permettent que l'axe central (32) et l'axe d'agitateur (44) soient dans une proximité immédiate.

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